(19)
(11)EP 3 489 593 B1

(12)EUROPEAN PATENT SPECIFICATION

(45)Mention of the grant of the patent:
22.07.2020 Bulletin 2020/30

(21)Application number: 18190845.0

(22)Date of filing:  24.08.2018
(51)International Patent Classification (IPC): 
F24H 9/00(2006.01)
F24H 9/14(2006.01)
F24H 1/20(2006.01)
F24H 9/20(2006.01)

(54)

HOT WATER STORAGE BOILER HAVING SCALE PREVENTION FUNCTION

WARMWASSERSPEICHER MIT KESSELSTEINVERHINDERUNGSFUNKTION

CHAUDIÈRE DE STOCKAGE D'EAU CHAUDE AYANT UNE FONCTION DE PRÉVENTION D'ENTARTRAGE


(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30)Priority: 28.11.2017 KR 20170160313

(43)Date of publication of application:
29.05.2019 Bulletin 2019/22

(73)Proprietor: Choi, Young-Hwan
Seoul 04359 (KR)

(72)Inventor:
  • Choi, Young-Hwan
    Seoul 04359 (KR)

(74)Representative: Verscht, Thomas Kurt Albert 
Josephsburgstrasse 88 A
81673 München
81673 München (DE)


(56)References cited: : 
KR-A- 20170 033 658
US-A1- 2013 118 602
US-A- 4 838 211
US-A1- 2015 219 363
  
      
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    Description

    Technical Field



    [0001] The present invention relates to a hot water storage boiler having a scale prevention function and, more particularly, to a hot water storage boiler having a scale prevention function, the boiler being able to prevent scale without an additive or an ultrasonic device.

    Background Art



    [0002] In general, gas boilers are used for heating, by using gas as fuel and water as heat medium. In particular, hot water supply boilers cause heating water to circulate through the interior thereof using a three-way valve, and have a burner to heat water by indirect heat exchange, so that people can use hot water. Such gas boilers are categorized as instant heating boilers and hot water storage boilers. Unlike instant heating boilers operating a burner to provide hot water as required, hot water storage boilers store hot water separately in a hot water tank such that hot water can be promptly used as required.

    [0003] FIG. 1 illustrates a hot water storage boiler of the related art. Referring to FIG. 1, the hot water storage boiler of the related art includes a heat-exchanging means 14 having a bundle of tubes 14a within a body 12, a burner unit 16 projecting a flame to the heat-exchanging means 14, an intake unit 18 supplying air to the burner unit 16, and exhausting combustion gas produced by the burner unit 16. Water supplied from an external water supply is brought into contact with the bundle of tubes 14a within a housing of the body to be converted into hot water by heat exchange. Hot water produced in this manner is supplied to a hot water pipe (not shown) using a circulation pump (not shown) or the like.

    [0004] Since heat exchange is undertaken with supply water being in contact with the bundle of tubes 14a or the burner unit 16, scale accumulated in the bundle of tubes 14a or the burner unit 16 may lower the heat exchange efficiency of the bundle of tubes 14a or the burner unit 16. Scale is caused by impurities contained in supply water, such as silica, calcium (Ca), or magnesium (Mg). Since the heat conductivity of such an impurity is significantly lower than the heat conductivity of a material of the bundle of tubes 14a or the burner unit 16, such as copper (Cu) or steel, scale formed of such impurities, when accumulated in the bundle of tubes 14a or the burner unit 16, may lower the heat exchange efficiency of the bundle of tubes 14a or the burner unit 16, which is problematic. In particular, since scale tends to be easily produced in a high-temperature environment, scale may be more easily produced on or around the burner unit 16.

    [0005] Conventional methods for minimizing effects of scale may include a method of inputting an additive to reduce the reaction of scale, a method of removing scale, and the like. However, such methods require a consumable additive to be supplied repeatedly, an ultrasonic device to be added, or the piping of heat exchange equipment to be sophisticated, which is problematic.

    [0006] In addition, there is another method of lowering the internal temperature of the burner unit 16 to reduce the production of scale. However, when the internal temperature of the burner unit 16 is lowered, the efficiency of heat exchange is also lowered, which is problematic.

    [0007] With regard to the prior art attention is drawn to KR 2017 0033658 A. This document discloses all features of the preamble of claim 1.

    [0008] Further, from US 2015/219363 A1 an apparatus for preventing lime scale buildup in a water heater tank including a curve-biased tube is known, the tube including an opening disposed at an end, a length of at least seventy five percent of the circumference of an interior bottom of the water heater tank, and a plurality of holes disposed along the length that face radially inward when the tube is arranged in a substantially annular configuration in accordance with its curve-biased position.

    Disclosure


    Technical Problem



    [0009] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a hot water storage boiler having a scale prevention function, the boiler being able to prevent scale without an additive or an ultrasonic device by lowering the surrounding temperature of a burner unit without changing the internal temperature of the burner unit.

    Technical Solution



    [0010] In order to accomplish the above object, the present invention provides a hot water storage boiler including: a body having defined a space therein, to which water is supplied, the body including a combustion chamber provided in an upper portion of the space; a burner projecting a flame into the combustion chamber; a plurality of tubes located within the space, with top ends thereof being integrally connected to a bottom surface of the combustion chamber and bottom ends thereof extending to a bottom portion of the space; an exhaust unit provided on a bottom of the body and integrally connected to the bottom ends of the tubes; and a spray pipe disposed within the body to face the bottom surface of the combustion chamber, with a plurality of spray holes thereof being provided in a direction of the bottom surface of the combustion chamber. Water supplied to the spray pipe is sprayed through the plurality of spray holes toward the bottom surface of the combustion chamber.

    [0011] In the hot water storage boiler, the spray pipe includes: a plurality of C-shaped concentric supply pipes having different radii; a connector pipe connecting ends of a pair of adjacent supply pipes among the plurality of supply pipes, except for one end of an outermost supply pipe and one end an innermost supply pipe among the plurality of supply pipes; and an inlet pipe connected to one end of the outermost supply pipe or the innermost supply pipe among the plurality of supply pipes. The plurality of spray holes is provided in top portions of the supply pipes and the connector pipe along longitudinal directions thereof. Water entering through the inlet pipe may be supplied to the plurality of supply pipes and the connector pipe and then be sprayed through the plurality of spray holes toward the bottom surface of the combustion chamber.

    [0012] In the hot water storage boiler, the innermost supply pipe among the plurality of supply pipes is arranged to face a center of the bottom surface of the combustion chamber, and the outermost supply pipe among the plurality of supply pipes is arranged to face an outer periphery of bottom surface of the combustion chamber.

    [0013] In the hot water storage boiler, the spray pipe may include: a supply pipe having a plurality of spray holes provided in a top portion thereof along a longitudinal direction; and an inlet pipe connected to one end or the other end of the supply pipe. Water supplied through the inlet pipe from an external source may pass through the supply pipe and then is sprayed through the spray holes toward the bottom surface of the combustion chamber.

    [0014] The hot water storage boiler may further include a control unit controlling a flow rate of water supplied to the spray pipe.

    [0015] The hot water storage boiler may further include a plate-shaped baffle blocking an upper portion and a lower portion of the space from each other, with a guide hole being provided in the baffle. The space may have an upper space portion and a lower space portion divided by the baffle. Water nay enter the lower space portion through the guide hole before being discharged outwards.

    [0016] In the hot water storage boiler, the plurality of tubes may be radially arranged in the space, the guide hole may be located in a central portion of the baffle, and a plurality of tube passage holes may be provided in the baffle such that the plurality of tubes pass therethrough, the plurality of tube passage holes being radially arranged around the guide hole.

    [0017] In the hot water storage boiler, the spray pipe may be located above the baffle.

    [0018] In the hot water storage boiler, an outer circumference of the combustion chamber may be smaller than an inner circumference of the body, such that a guide space portion is provided between the outer circumference of the combustion chamber and the inner circumference of the body, and a spiral guide is provided on the outer circumference of the combustion chamber or the inner circumference of the body. The guide space portion may be configured to circulate on the outer circumference of the combustion chamber along the spiral guide. When water entering the space is converted into hot water by heat exchange with the plurality of tubes, the hot water may be guided into the guide space portion before being discharged from the body.

    Advantageous Effects



    [0019] The present invention is intended to lower the temperature of the bottom portion of the combustion chamber by spraying low-temperature water toward the bottom portion of the combustion chamber using the spray pipe, thereby reducing production of scale.

    [0020] Since the spray pipe has the plurality of supply pipes, water can be uniformly sprayed to the entire area from the central portion to the peripheral portion of the bottom portion of the combustion chamber, thereby rapidly lowering the temperature of the entire area of the bottom portion of the combustion chamber. This can consequently further reduce production of scale on the bottom portion of the combustion chamber.

    [0021] In addition, low-temperature water collides into the bottom portion during passage through the guide hole of the baffle, thereby spreading in the upper space portion. This can consequently lower the temperature of the bottom portion, thereby reducing production of scale.

    [0022] Furthermore, since water flows at a high speed from the lower space portion to the upper space portion through the guide hole of the baffle, the water strongly collides into the bottom portion, thereby preventing scale from being accumulated on the bottom portion.

    [0023] In addition, since the guide space portion is configured to circulate on the outer circumference of the sidewall portion along the spiral guide, hot water heated in the tubes circulates on the outer circumference of the sidewall portion through the guide space portion. This can increase a time in which hot water is in contact with the sidewall portion, thereby increasing the heat exchange efficiency of the combustion chamber.

    Description of Drawings



    [0024] 

    FIG. 1 illustrates a hot water storage boiler of the related art;

    FIG. 2 illustrates a hot water storage boiler having a scale prevention function according to an exemplary embodiment of the present invention;

    FIG. 3 schematically illustrates the interior of a body of the hot water storage boiler having a scale prevention function according to the exemplary embodiment of the present invention;

    FIG. 4 schematically illustrates the hot water storage boiler having a scale prevention function according to the exemplary embodiment of the present invention, in which the baffle and the spray pipe are separated from the boiler;

    FIG. 5 schematically illustrates the hot water storage boiler having a scale prevention function according to the exemplary embodiment of the present invention, in which the baffle and the spray pipe are attached to the boiler;

    FIG. 6 is a top plan view illustrating the hot water storage boiler having a scale prevention function according to the exemplary embodiment of the present invention, in which the baffle and the spray pipe are attached to the boiler; and

    FIG. 7 schematically illustrates the hot water storage boiler having a scale prevention function according to the exemplary embodiment of the present invention, such that flows of combustion gas and water in the boiler are represented.

    <Description of the Reference Numerals in the Drawings>
    1000: Boiler    
    100: Body 110: Housing
    112: Space 112a: Lower space portion
    112b: Upper space portion 114: Lower cover
    116: Upper cover 120: Supply water inlet
    130: Hot water outlet 140: Spray water supply
    200: Combustion chamber 210: Bottom portion
    220: Sidewall portion 222: Spiral guide
    230: spiral guide 300: Burner
    310: air supply 400: Tube
    500: Spray pipe 510: Supply pipe
    520: Connector pipe 525: Spray hole
    530: Inlet pipe 600: Baffle
    602: Guide hole 604: Tube passage hole
    700: Exhaust unit 710: Exhaust pipe

    Best Mode



    [0025] Hereinafter, a hot water storage boiler having a scale prevention function according to an exemplary embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

    [0026] FIG. 2 illustrates a hot water storage boiler having a scale prevention function according to an exemplary embodiment of the present invention, and FIG. 3 schematically illustrates the interior of a body of the hot water storage boiler having a scale prevention function according to the exemplary embodiment of the present invention.

    [0027] Referring to FIGS. 2 and 3, the hot water storage boiler 1000 having a scale prevention function according to the exemplary embodiment of the present invention includes a body 100, a combustion chamber 200, a burner 300, a bundle of tubes 400, a spray pipe 500, a baffle 600, and an exhaust unit 700.

    [0028] The body 100 includes a substantially-cylindrical housing 110 having defined a hollow space 112 (see FIG. 7) therein, a bottom cover 114 closing an open bottom portion of the housing 110, and a top cover 116 closing an open top portion of the housing 110. A supply water inlet 120 is provided on a side portion of the bottom portion of the housing 110, allowing water to be supplied into the housing 110, and a hot water outlet 130 is provided on a side portion of the top portion of the housing 110. Supply water is supplied into the housing 110 through the supply water inlet 120 to be heated while flowing through the tubes 400, which will be described later. Hot water produced through the heating of the supply water is discharged through the hot water outlet 130. The hot water, discharged from the body 100, is used as bath water, heating water, or the like.

    [0029] The shape of the combustion chamber 200 is substantially cylindrical, and is provided in the upper portion of the inside of the housing 110 such that an independent space is defined therein. The combustion chamber 200 includes a bottom portion 210 provided in the bottom and a sidewall portion 220 protruding vertically upward along the periphery of the bottom portion 210. The outer circumference of the sidewall portion 220 is configured to be smaller than the inner circumference of the housing 110, such that a hollow space, i.e. a guide space portion 230 (see FIG. 7), is provided between the outer circumference of the sidewall portion 220 and the inner circumference of the housing 110. When the supply water, introduced into the housing 110, is converted into hot water by being heated in the tubes 400, the hot water is guided through the guide space portion 230 before being discharged from the housing 110. A spiral guide 222 is provided between the outer circumference of the sidewall portion 220 and the inner circumference of the housing 110, such that the guide space portion 230 is configured to circulate on the outer circumference of the sidewall portion 220 along the spiral guide 222. Since the guide space portion 230 is configured to circulate on the outer circumference of the sidewall portion 220 along the spiral guide 222, hot water heated in the tubes 400 circulates on the outer circumference of the sidewall portion 220 along the guide space portion 230. This configuration can increase a time in which hot water is in contact with the sidewall portion 220, thereby increasing the heat exchange efficiency of the combustion chamber 200.

    [0030] The burner 300 is mounted on the top surface of the top cover 116 to project a flame into the combustion chamber 200. The burner 300 has a typical configuration for properly mixing fuel, such as gas, with air and burning the mixture to produce a flame. When the burner 300 projects the flame into the sidewall portion 220, hot combustion gas is produced by the flame. The burner 300 has an air supply 310 for supplying ambient air to the burner 300.

    [0031] Each of the tubes 400 has the shape of a hollow cylinder. Each of the tubes 400 is connected to the bottom portion 210 with one end thereof penetrating into the bottom portion 210, and is connected to the bottom cover 114 with the other end thereof penetrating into the bottom cover 114. The bundle of tubes 400, comprised of a plurality of tubes, may be radially arranged within the housing 110. When hot combustion gas, produced within the combustion chamber 200, flows into the tubes 400, the tubes 400 are heated to a high temperature by the heat of the combustion gas. After passing through the tubes 400, the combustion gas is exhausted through the exhaust unit 700.

    [0032] The exhaust unit 700 is disposed on the bottom surface of the bottom cover 114 in order to let combustion gas, exhaust gas, or the like, discharged from the tubes 400, to exit. The exhaust gas is discharged through an exhaust pipe 710.

    [0033] FIG. 4 schematically illustrates the hot water storage boiler having a scale prevention function according to the exemplary embodiment of the present invention, in which the baffle and the spray pipe are separated from the boiler, FIG. 5 schematically illustrates the hot water storage boiler having a scale prevention function according to the exemplary embodiment of the present invention, in which the baffle and the spray pipe are attached to the boiler, and FIG. 6 is a top plan view illustrating the hot water storage boiler having a scale prevention function according to the exemplary embodiment of the present invention, in which the baffle and the spray pipe are attached to the boiler.

    [0034] Referring to FIGS. 4 to 6, the bottom portion 210 of the combustion chamber 200 is connected to the burner 300. Due to this configuration, the bottom portion 210 of the combustion chamber 200 remains hot, with the temperature being gradually lowered in the direction toward the bottom cover 114. Due to the property of calcium in water tending to produce more scale at a higher temperature, scale is easily produced by calcium on the hot bottom cover 114. To remove this problem, the present invention lowers the temperature of the bottom portion 210 of the combustion chamber 200 using the baffle 600 and the spray pipe 500 in order to effectively reduce the production of scale.

    [0035] The baffle 600 is located, for example, in the longitudinal central portion within the housing 110 to block the upper portion and the lower portion of the space 112 of the housing 110 from each other. Consequently, the space 112 has an upper space portion 112b and a lower space portion 112a divided by the baffle 600. Specifically, the upper space portion 112b is located above the baffle 600, while the lower space portion 112a is located below the baffle 600. A guide hole 602 is provided in the baffle 600. The guide hole 602 may be provided in the central portion of the baffle 600. In addition, the baffle 600 has a plurality of tube passage holes 604 in positions corresponding to the tubes 400, such that the tubes 400 pass through the tube passage holes 604. The plurality of tube passage holes 604 may be radially arranged around the guide hole 602. The guide hole 602 may be provided with a filter (not shown) to remove a variety of impurities contained in water.

    [0036] Since the lower space portion 112a is farther away from the burner 300 than the upper space portion 112b, the temperature of water in the lower space portion 112a is lower than the temperature of water in the upper space portion 112b. The low-temperature water in the lower space portion 112a collides into the bottom portion 210 while passing through the guide hole 602, thereby spreading in the upper space portion 112b. This can consequently lower the temperature of the bottom portion 210, thereby reducing production of scale.

    [0037] The spray pipe 500 is located above the baffle 600 to face the bottom portion 210 of the combustion chamber 200, and is configured to spray water in the direction of the bottom portion 210. The spray pipe 500 includes a plurality of C-shaped concentric supply pipes 510 having different radii, a connector pipe 520 connecting ends of a pair of adjacent supply pipes 510 among the plurality of supply pipes 510, except for one end of the outermost supply pipe 510 and one end of the innermost supply pipe 510, and an inlet pipe 530 connected to one end of the outermost supply pipe 510 or the innermost supply pipe 510 among the plurality of supply pipes 510. Both ends of the supply pipes 510 are located adjacently to each other while facing each other. The connector pipe 520 is configured to connect the facing ends of the pair of supply pipes 510. When the supply pipes 510 are three or more supply pipes, a plurality of connector pipes 520 is provided to alternately connect one end of each of the plurality of supply pipes 510 to the other end of the corresponding one of the plurality of supply pipes 510.

    [0038] In addition, a plurality of spray holes 525 is provided in the top portions of the supply pipes 510 and the connector pipe 520 along the longitudinal direction. Since the inlet pipe 530 is connected to a spray water supply 140, water introduced into the inlet pipe 530 through the spray water supply 140 from an external source is supplied to the supply pipes 510 and the connector pipe 520 before being sprayed toward the bottom portion 210 of the combustion chamber 200 through the spray holes 525. Since the spray pipe 500 sprays low-temperature water toward the bottom portion 210 of the combustion chamber 200 as described above, the temperature of the bottom portion 210 of the combustion chamber 200 may be lowered, thereby reducing production of scale.

    [0039] In addition, the innermost supply pipe 510 among the plurality of supply pipes 510 is arranged to face the center of the bottom portion 210 of the combustion chamber 200, while the outermost supply pipe 510 among the plurality of supply pipes 510 is arranged to face the outer periphery of bottom portion 210 of the combustion chamber 200. Since the plurality of supply pipes 510 is provided as described above, the supply pipes 510 can uniformly spray supply water over the entire area from the center to the outer periphery, thereby rapidly lowering the temperature of the entire area of the bottom portion 210 of the combustion chamber 200. This can further reduce production of scale in the bottom portion 210 of the combustion chamber 200.

    [0040] In addition, the spray water supply 140 may further include a control unit (not shown) controlling the flow rate of water entering the inlet pipe 530. The control unit may have a typical configuration of controlling the amount of water supplied, including a flow rate control valve, a motor, a controller, and the like.

    [0041] In some cases, the spray pipe 500 may be configured to be spirally wound. In this case, the spray pipe 500 includes a supply pipe having a plurality of spray holes provided in the top portion thereof along the longitudinal direction and an inlet pipe connected to one end or the other end of the supply pipe. Water supplied through the inlet pipe from an external source passes through the supply pipe and then is sprayed through the spray holes toward the bottom portion 210 of the combustion chamber 200.

    [0042] FIG. 7 schematically illustrates the hot water storage boiler having a scale prevention function according to the exemplary embodiment of the present invention, such that flows of combustion gas and water in the boiler are represented.

    [0043] Referring to the drawing, when the burner 300 is ignited, a flame is projected into the combustion chamber 200, thereby producing hot combustion gas within the combustion chamber 200. The combustion gas heats the combustion chamber 200, flows through the plurality of tubes 400 to heat the tubes 400, and then is discharged through the exhaust unit 700.

    [0044] After being supplied to the lower space portion 112a within the housing 110 through the supply water inlet 120, water is heated by the tubes 400. Afterwards, water is supplied to the upper space portion 112b at a fast flow rate, which is increased during passage through the guide hole 602 of the baffle 600, before colliding into the bottom portion 210 of the combustion chamber 200. When water entering the lower space portion 112a passes through the guide hole 602, i.e. a narrower space, from the lower space portion 112a, i.e. a wider space, the velocity of the water is increased. Consequently, water, the velocity of which is increased during flowing from the lower space portion 112a to the upper space portion 112b, collides into the bottom portion 210 at a high speed and then moves to the guide space portion 230, so that no scale is accumulated in the bottom portion 210.

    [0045] In addition, after passing through bottom portion 210, water circulates on the outer circumference of the combustion chamber 200 along the guide space portion 230, during which process water is converted into hot water by heat exchange. Hot water, produced as described above, is discharged through the hot water outlet 130.


    Claims

    1. A hot water storage boiler (1000) comprising:

    a body (100) having defined a space (112) therein, to which water is supplied, the body (100) comprising a combustion chamber (200) provided in an upper portion of the space (112);

    a burner (300) projecting a flame into the combustion chamber (200) ;

    a plurality of tubes (400) located within the space (112), with top ends thereof being integrally connected to a bottom surface of the combustion chamber (200) and bottom ends thereof extending to a bottom portion of the space (112);

    an exhaust unit (700) provided on a bottom of the body (100) and integrally connected to the bottom ends of the tubes (400); and

    a spray pipe (500) disposed within the body (100) to face the bottom surface of the combustion chamber (200), with a plurality of spray holes (525) thereof being provided in a direction of the bottom surface of the combustion chamber (200),

    wherein water supplied to the spray pipe (500) is sprayed through the plurality of spray holes (525) toward the bottom surface of the combustion chamber (200),

    characterized in that

    wherein the spray pipe (500) comprises:

    a plurality of C-shaped concentric supply pipes (510) having different radii;

    a connector pipe (520) connecting ends of a pair of adjacent supply pipes (510) among the plurality of supply pipes (510), except for one end of an outermost supply pipe (510) and one end an innermost supply pipe (510) among the plurality of supply pipes (510); and

    an inlet pipe (530) connected to one end of the outermost supply pipe (510) or the innermost supply pipe (510) among the plurality of supply pipes (510), and

    the plurality of spray holes (525) is provided in top portions of the supply pipes (510) and the connector pipe (520) along longitudinal directions thereof,

    wherein water entering through the inlet pipe (530) is supplied to the plurality of supply pipes (510) and the connector pipe (520) and then is sprayed through the plurality of spray holes (525) toward the bottom surface of the combustion chamber (200),

    wherein the innermost supply pipe (510) among the plurality of supply pipes (510) is arranged to face a center of the bottom surface of the combustion chamber (200), and the outermost supply pipe (510) among the plurality of supply pipes (510) is arranged to face an outer periphery of bottom surface of the combustion chamber (200).


     
    2. The hot water storage boiler (1000) according to claim 1, wherein the spray pipe (500) comprises:

    a supply pipe (510) having a plurality of spray holes (525) provided in a top portion thereof along a longitudinal direction; and

    an inlet pipe (530) connected to one end or the other end of the supply pipe (510),

    wherein water supplied through the inlet pipe (530) from an external source passes through the supply pipe (510) and then is sprayed through the spray holes (525) toward the bottom surface of the combustion chamber (200).


     
    3. The hot water storage boiler (1000) according to claim 1 and/or 2, further comprising a control unit controlling a flow rate of water supplied to the spray pipe (500).
     
    4. The hot water storage boiler (1000) according to any one or more of claims 1 to 3, further comprising a plate-shaped baffle (600) blocking an upper portion and a lower portion of the space (112) from each other, with a guide hole (602) being provided in the baffle (600),
    wherein the space (112) has an upper space portion (112b) and a lower space portion (112) divided by the baffle (600),
    wherein water enters the lower space portion (112a) through the guide hole (602) before being discharged outwards.
     
    5. The hot water storage boiler (1000) according to claim 4, wherein the plurality of tubes (400) is radially arranged in the space (112), the guide hole (602) is located in a central portion of the baffle (600), and a plurality of tube passage holes (604) are provided in the baffle (600) such that the plurality of tubes (400) pass therethrough, the plurality of tube passage holes (604) being radially arranged around the guide hole (602).
     
    6. The hot water storage boiler (1000) according to claim 4 and/or 5, wherein the spray pipe (500) is located above the baffle (600).
     
    7. The hot water storage boiler (1000) according to any one or more of claims 1 to 6, wherein an outer circumference of the combustion chamber (200) is smaller than an inner circumference of the body (100), such that a guide space portion is provided between the outer circumference of the combustion chamber (200) and the inner circumference of the body (100), and a spiral guide is provided on the outer circumference of the combustion chamber (200) or the inner circumference of the body (100), and
    the guide space portion is configured to circulate on the outer circumference of the combustion chamber (200) along the spiral guide,
    wherein, when water entering the space (112) is converted into hot water by heat exchange with the plurality of tubes (400), the hot water is guided into the guide space portion before being discharged from the body (100).
     


    Ansprüche

    1. Ein Heißwasserspeicherheizkessel (1000), der folgendes aufweist:

    einen Körper (100) mit einem darin definierten Raum (112), an den Wasser geliefert wird, wobei der Körper (100) eine Brennkammer (200), die in einem oberen Teil des Raums (112) vorgesehen ist, aufweist;

    einen Brenner (300), der eine Flamme in die Brennkammer (200) wirft;

    eine Vielzahl von Rohren (400), die innerhalb des Raums (112) angeordnet sind, wobei die obere Enden davon einstückig mit einer unteren Fläche der Brennkammer (200) verbunden sind und die untere Enden davon sich zu einem unteren Teil des Raums erstrecken (112);

    eine Abgaseinheit (700), die an einem unteren Bereich des Körpers (100) vorgesehen und einstückig mit den unteren Enden der Rohre (400) verbunden ist; und

    eine Sprühröhre (500), die innerhalb des Körpers (100) angeordnet ist, um der unteren Fläche der Brennkammer (200) zugewandt zu sein, wobei eine Vielzahl von Sprühlöchern (525) davon in einer Richtung der unteren Fläche der Brennkammer (200) vorgesehen sind,

    wobei Wasser, das zu der Sprühröhre (500) geliefert wird, durch die Vielzahl von Sprühlöchern (525) zu der unteren Fläche der Brennkammer (200) hin gesprüht wird,

    dadurch gekennzeichnet, dass die Sprühröhre (500) folgendes aufweist:

    eine Vielzahl von C-förmigen konzentrischen Lieferröhren (510) mit unterschiedlichen Radien;

    eine Verbindungsröhre (520), die Enden von einem Paar von benachbarten Lieferröhren (510) unter der Vielzahl von Lieferröhren (510) verbindet, mit Ausnahme eines Endes von einer äußersten Lieferröhre (510) und eines Endes von einer innersten Lieferröhre (510) unter der Vielzahl von Lieferröhren (510); und

    eine Einlassröhre (530), welche mit einem Ende der äußersten Lieferröhre (510) oder der innersten Lieferröhre (510) unter der Vielzahl von Lieferröhren (510) verbunden ist, und

    die Vielzahl von Sprühlöchern (525) ist in oberen Teilen der Lieferröhren (510) und der Verbindungsröhre (520) entlang Längsrichtungen davon vorgesehen,

    wobei Wasser, das durch die Einlassröhre (530) eintritt, an die Vielzahl von Lieferröhren (510) und die Verbindungsröhre (520) geliefert wird und dann durch die Vielzahl von Sprühlöchern (525) zu der unteren Fläche der Brennkammer (200) hin gesprüht wird,

    wobei die innerste Lieferröhre (510) unter der Vielzahl von Lieferröhren (510) so angeordnet ist, dass sie einer Mitte der unteren Fläche der Brennkammer (200) zugewandt ist, und die äußerste Lieferröhre (510) unter der Vielzahl von Lieferröhren (510) so angeordnet ist, dass sie einem Außenumfang der unteren Fläche der Brennkammer (200) zugewandt ist.


     
    2. Der Heißwasserspeicherheizkessel (1000) nach Anspruch 1, wobei die Sprühröhre (500) folgendes aufweist:

    eine Lieferröhre (510) mit einer Vielzahl von Sprühlöchern (525), die in einem oberen Teil davon entlang einer Längsrichtung vorgesehen sind; und

    eine Einlassröhre (530), die mit einem Ende oder dem anderen Ende der Lieferröhre (510) verbunden ist,

    wobei Wasser, das durch die Einlassröhre (530) von einer externen Quelle geliefert wird, durch die Lieferröhre (510) durchgeht und dann durch die Sprühlöcher (525) zu der unteren Fläche der Brennkammer (200) hin gesprüht wird.


     
    3. Der Heißwasserspeicherheizkessel (1000) nach Anspruch 1 und/oder 2, der ferner eine Steuereinheit aufweist, welche eine Strömungsrate des Wassers, das an die Sprühröhre (500) geliefert wird, steuert.
     
    4. Der Heißwasserspeicherheizkessel (1000) nach einem oder mehreren der Ansprüche 1 bis 3, welcher ferner eine plattenförmige Prallplatte (600) aufweist, die einen oberen Teil und einen unteren Teil des Raums (112) voneinander blockiert, wobei ein Führungsloch (602) in der Prallplatte (600) vorgesehen ist,
    wobei der Raum (112) einen oberen Raumteil (112b) und einen unteren Raumteil (112), welche durch die Prallplatte (600) unterteilt sind, hat,
    wobei Wasser durch das Führungsloch (602) in den unteren Raumteil (112a) eintritt, bevor es nach außen abgelassen wird.
     
    5. Der Heißwasserspeicherheizkessel (1000) nach Anspruch 4, wobei die Vielzahl von Rohren (400) radial in dem Raum (112) angeordnet ist, das Führungsloch (602) in einem mittleren Teil der Prallplatte (600) angeordnet ist, und eine Vielzahl von Rohrdurchgangslöchern (604) in der Prallplatte (600) vorgesehen sind, so dass die Vielzahl von Rohren (400) dahindurch geht, wobei die Vielzahl von Rohrdurchgangslöchern (604) radial um das Führungsloch (602) angeordnet sind.
     
    6. Der Heißwasserspeicherheizkessel (1000) nach Anspruch 4 und/oder 5, wobei die Lieferröhre (500) über der Prallplatte (600) angeordnet ist.
     
    7. Der Heißwasserspeicherheizkessel (1000) nach einem oder mehreren der Ansprüche 1 bis 6, wobei ein Außenumfang der Brennkammer (200) kleiner als ein Innenumfang des Körpers (100) ist, so dass ein Führungsraumteil zwischen dem Außenumfang der Brennkammer (200) und dem Innenumfang des Körpers (100) vorgesehen ist, und eine Spiralführung ist an dem Außenumfang der Brennkammer (200) oder dem Innenumfang des Körpers (100) vorgesehen, und
    der Führungsraumteil ist konfiguriert, um am Außenumfang der Brennkammer (200) entlang der Spiralführung zu zirkulieren,
    wobei, wenn Wasser, das in den Raum (112) eintritt, durch Wärmeaustausch mit der Vielzahl von Rohren (400) in heißes Wasser gewandelt wird, das heiße Wasser in den Führungsraumteil geführt wird, bevor es von dem Körper (100) abgelassen wird.
     


    Revendications

    1. Chaudière de stockage d'eau chaude (1000) comprenant :

    un corps (100) ayant un espace (112) défini à l'intérieur, auquel de l'eau est apportée, le corps (100) comprenant une chambre de combustion (200) située dans une portion supérieure de l'espace (112) ;

    un brûleur (300) projetant une flamme dans la chambre de combustion (200) ;

    une pluralité de tubes (400) positionnés dans l'espace (112), les extrémités supérieures de ceux-ci étant connectés d'un seul tenant à une surface inférieure de la chambre de combustion (200) et les extrémités inférieures de ceux-ci s'étendant jusqu'à une portion inférieure de l'espace (112) ;

    une unité d'échappement (700) située sur un fond du corps (100) et connectée d'un seul tenant aux extrémités inférieures des tubes (400) ; et

    un tuyau de pulvérisation (500) disposé dans le corps (100) pour faire face à la surface inférieure de la chambre de combustion (200), avec une pluralité de trous de pulvérisation (525) de ceux-ci étant situés dans une direction de la surface inférieure de la chambre de combustion (200),

    dans laquelle de l'eau apportée au tuyau de pulvérisation (500) est pulvérisée par la pluralité de trous de pulvérisation (525) vers la surface inférieure de la chambre de combustion (200),

    caractérisée en ce que le tuyau de pulvérisation (500) comprend :

    une pluralité de tuyaux d'alimentation concentriques en forme de C (510) ayant des rayons différents ;

    un tuyau de connexion (520) connectant des extrémités d'une paire de tuyaux d'alimentation (510) adjacents parmi la pluralité de tuyaux d'alimentation (510), à l'exception d'une extrémité d'un tuyau d'alimentation (510) le plus extérieur et d'une extrémité d'un tuyau d'alimentation (510) le plus intérieur parmi la pluralité de tuyaux d'alimentation (510) ; et

    un tuyau d'entrée (530) connecté à une extrémité du tuyau d'alimentation (510) le plus extérieur ou du tuyau d'alimentation (510) le plus intérieur parmi la pluralité de tuyaux d'alimentation (510),

    en ce que la pluralité de trous de pulvérisation (525) sont situés dans des portions supérieures des tuyaux d'alimentation (510) et du tuyau de connexion (520) le long de directions longitudinales de ceux-ci,

    dans laquelle de l'eau entrant par le tuyau d'entrée (530) est apportée à la pluralité de tuyaux d'alimentation (510) et au tuyau de connexion (520) puis est pulvérisée par la pluralité de trous de pulvérisation (525) vers la surface inférieure de la chambre de combustion (200),

    dans laquelle le tuyau d'alimentation (510) le plus intérieur parmi la pluralité de tuyaux d'alimentation (510) est agencé pour faire face à un centre de la surface inférieure de la chambre de combustion (200), et le tuyau d'alimentation (510) le plus extérieur parmi la pluralité de tuyaux d'alimentation (510) est agencé pour faire face à une périphérie extérieure de surface inférieure de la chambre de combustion (200).


     
    2. Chaudière de stockage d'eau chaude (1000) selon la revendication 1, dans laquelle le tuyau de pulvérisation (500) comprend :

    un tuyau d'alimentation (510) ayant une pluralité de trous de pulvérisation (525) situés dans une portion supérieure de celui-ci le long d'une direction longitudinale ; et

    un tuyau d'entrée (530) connecté à une extrémité ou l'autre extrémité du tuyau d'alimentation (510),

    dans laquelle de l'eau apportée par le tuyau d'entrée (530) depuis une source externe traverse le tuyau d'alimentation (510) puis est pulvérisée par les trous de pulvérisation (525) vers la surface inférieure de la chambre de combustion (200).


     
    3. Chaudière de stockage d'eau chaude (1000) selon la revendication 1 et/ou 2, comprenant en outre une unité de commande commandant un débit d'eau apporté au tuyau de pulvérisation (500).
     
    4. Chaudière de stockage d'eau chaude (1000) selon une ou plusieurs des revendications 1 à 3, comprenant en outre un déflecteur en forme de plaque (600) bloquant une portion supérieure et une portion inférieure de l'espace (1,12) l'une vis-à-vis de l'autre, avec un trou de guidage (602) étant situé dans le déflecteur (600),
    dans laquelle l'espace (112) a une portion d'espace supérieure (112b) et une portion d'espace inférieure (112a) divisées par le déflecteur (600),
    dans laquelle de l'eau entre dans la portion d'espace inférieure (112a) par le trou de guidage (602) avant d'être rejetée vers l'extérieur.
     
    5. Chaudière de stockage d'eau chaude (1000) selon la revendication 4, dans laquelle la pluralité de tubes (400) sont agencés radialement dans l'espace (112), le trou de guidage (602) est positionné dans une portion centrale du déflecteur (600), et une pluralité de trous de passage de tube (604) sont situés dans le déflecteur (600) de telle sorte que la pluralité de tubes (400) passent à travers, la pluralité de trous de passage de tube (604) étant radialement agencés autour du trou de guidage (602).
     
    6. Chaudière de stockage d'eau chaude (1000) selon la revendication 4 et/ou la revendication 5, dans laquelle le tuyau de pulvérisation (500) est positionné au-dessus du déflecteur (600).
     
    7. Chaudière de stockage d'eau chaude (1000) selon une ou plusieurs des revendications 1 à 6, dans laquelle une circonférence extérieure de la chambre de combustion (200) est plus petite qu'une circonférence intérieure du corps (100), de telle sorte qu'une portion d'espace de guidage est située entre la circonférence extérieure de la chambre de combustion (200) et la circonférence intérieure du corps (100), et un guide en spirale est positionné sur la circonférence extérieure de la chambre de combustion (200) ou la circonférence intérieure du corps (100), et
    la portion d'espace de guidage est configurée pour circuler sur la circonférence extérieure de la chambre de combustion (200) le long du guide en spirale,
    dans laquelle, lorsque de l'eau entrant dans l'espace (112) est convertie en eau chaude par échange de chaleur avec la pluralité de tubes (400), l'eau chaude est guidée dans la portion d'espace de guidage avant d'être rejetée du corps (100).
     




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    Cited references

    REFERENCES CITED IN THE DESCRIPTION



    This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

    Patent documents cited in the description