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(11) | EP 2 984 344 B1 |
| (12) | EUROPEAN PATENT SPECIFICATION |
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SYSTEM AND METHOD FOR COMPRESSING CARBON DIOXIDE SYSTEM UND VERFAHREN ZUM KOMPRIMIEREN VON KOHLENDIOXID SYSTÈME ET PROCÉDÉ POUR COMPRIMER DU DIOXYDE DE CARBONE |
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| 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). |
Cross-Reference to Related Applications
Background
[0001] Reliable and efficient compression systems have been developed and are utilized in a myriad of industrial processes (e.g., petroleum refineries, offshore oil production platforms, and subsea process control systems). An example of a centrifugal compressor is described in JP 2012 251529, and an example of a centrifugal type refrigerant compressor is described in US 5,857,348. There is, however, an ever-increasing demand for smaller, lighter, and more compact compression systems. Accordingly, compact motor-compressors that incorporate compressors directly coupled to high-speed electric motors have been developed. Conventional compact motor-compressors may combine a high-speed electric motor with one or more compressors, such as a centrifugal compressor, in a single, hermetically sealed housing. Recently, for conventional compact motor-compressors to be considered economically and commercially viable for various industrial processes, it is desired that the compact motor-compressors achieve higher compression ratios (e.g., 10:1 or greater) while maintaining a compact arrangement.
[0002] In view of the foregoing, compact motor-compressors may often attempt to achieve the higher compression ratios by increasing the number of compression stages within the single, hermetically sealed housing. Increasing the number of compression stages, however, increases the overall number of components (e.g., impellers and/or other intricate parts) required to achieve the desired compressor throughput (e.g., mass flow) and pressure rise to achieve the higher compression ratios. Increasing the number of components required in these compact motor-compressors may often increase length requirements for the rotary shaft and/or increase distance requirements between rotary shaft bearings. The imposition of these requirements often results in larger, less compact motor-compressor arrangements as compared to previous compact motor-compressors utilizing fewer compression stages. Further, in many cases, increasing the number of compression stages in the compact motor-compressors may still not provide the desired higher compression ratios or, if the desired compression ratios are achieved, the compact motor-compressors may exhibit decreased efficiencies that make the compact motor-compressors commercially undesirable.
[0003] What is needed, then, is an efficient system and method of compression that provides increased compression ratios in a compact arrangement that is economically and commercially viable.
Summary
[0004] Embodiments of the disclosure may provide a compression system. The compression system may include a driver having a drive shaft extending therethrough and configured to provide the drive shaft with rotational energy. The compression system may also include a first single-stage compressor and a second single-stage compressor. The first single-stage compressor and the second single-stage compressor may each include a rotary shaft coupled with or integral with the drive shaft of the driver. The first single-stage compressor and the second single-stage compressor may be configured to compress a high molecular weight process fluid to provide a compressed process fluid having a pressure ratio of about 10:1 or greater. The compressed process fluid may contain heat from the compression thereof. A heat recovery system may be fluidly coupled with the first single-stage compressor and the second single-stage compressor. The heat recovery system may be configured to receive the compressed process fluid and absorb at least a portion of the heat contained in the compressed process fluid.
[0005] Embodiments of the disclosure may further provide another compression system. The compression system may include a driver having a drive shaft extending therethrough and configured to provide the drive shaft with rotation energy. The compression system may also include a first single-stage compressor having a first rotary shaft operatively coupled with a first end of the drive shaft. The first single-stage compressor may have a compression ratio of at least about 3.8:1 and may be configured to compress a process fluid containing carbon dioxide to provide a first compressed process fluid. The compression system may further include a second single-stage compressor having a second rotary shaft operatively coupled with a second end of the drive shaft. The second single-stage compressor may have a compression ratio of at least about 2.7:1 and may be configured to compress the first compressed process fluid to provide a second compressed process fluid. The second compressed process fluid may contain heat from the compression thereof and may have a pressure ratio of at least about 10:1.
[0006] Embodiments of the disclosure may further provide a method for compressing a process fluid. The method may include driving a first single-stage compressor and a second single-stage compressor via a drive shaft. The drive shaft may be operatively coupled with the first single-stage compressor and the second single-stage compressor and may be driven by a driver. The method may also include compressing the process fluid via the first single-stage compressor and the second single-stage compressor to provide a compressed process fluid. The compressed process fluid may contain heat from the compression thereof and may have a pressure ratio of about 10:1 or greater. The method may further include directing the compressed process fluid to a heat recovery system and absorbing at least a portion of the heat contained in the compressed process fluid in the heat recovery system.
Brief Description of the Drawings
[0007] The present disclosure is best understood from the following detailed description when read with the accompanying Figures. It is emphasized that, in accordance with the standard practice in the industry, various features are not drawn to scale. In fact, the dimensions of the various features may be arbitrarily increased or reduced for clarity of discussion.
Figure 1 illustrates a schematic of an exemplary compression system for pressurizing a process fluid, the compression system including a plurality of compressors coupled with a driver, according to one or more embodiments disclosed.
Figure 2 illustrates a flowchart of a method for compressing a process fluid, accordingly to one or more embodiments disclosed.
Detailed Description
[0008] It is to be understood that the following disclosure describes several exemplary embodiments for implementing different features, structures, or functions of the invention. Exemplary embodiments of components, arrangements, and configurations are described below to simplify the present disclosure; however, these exemplary embodiments are provided merely as examples and are not intended to limit the scope of the invention. Additionally, the present disclosure may repeat reference numerals and/or letters in the various exemplary embodiments and across the Figures provided herein. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various exemplary embodiments and/or configurations discussed in the various Figures. Moreover, the formation of a first feature over or on a second feature in the description that follows may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features may be formed interposing the first and second features, such that the first and second features may not be in direct contact. Finally, the exemplary embodiments presented below may be combined in any combination of ways, i.e., any element from one exemplary embodiment may be used in any other exemplary embodiment, without departing from the scope of the disclosure.
[0009] Additionally, certain terms are used throughout the following description and claims to refer to particular components. As one skilled in the art will appreciate, various entities may refer to the same component by different names, and as such, the naming convention for the elements described herein is not intended to limit the scope of the invention, unless otherwise specifically defined herein. Further, the naming convention used herein is not intended to distinguish between components that differ in name but not function. Additionally, in the following discussion and in the claims, the terms "including" and "comprising" are used in an open-ended fashion, and thus should be interpreted to mean "including, but not limited to." All numerical values in this disclosure may be exact or approximate values unless otherwise specifically stated. Accordingly, various embodiments of the disclosure may deviate from the numbers, values, and ranges disclosed herein without departing from the intended scope. Furthermore, as it is used in the claims or specification, the term "or" is intended to encompass both exclusive and inclusive cases, i.e., "A or B" is intended to be synonymous with "at least one of A and B," unless otherwise expressly specified herein.
[0010] Figure 1 illustrates a schematic of an exemplary compression system 100 for pressurizing a process fluid, the compression system 100 including a plurality of compressors 140, 150 coupled with a driver 102, according to one or more embodiments. The compressors 140, 150 may be direct-inlet or axial-inlet, centrifugal compressors. In at least one embodiment, each of the compressors 140, 150 may be a single-stage compressor having compression ratios of at least about 2.5:1 or greater.
[0011] As illustrated in Figure 1, each of the compressors 140, 150 may include a rotary shaft 114, 116 coupled with a drive shaft 108 of the driver 102. Each of the compressors 140, 150 may be coupled with the driver 102 at opposing ends of the drive shaft 108 in a "double-ended" configuration or arrangement. For example, a rotary shaft 114 of a first compressor 140 may extend therefrom and may be coupled with a first end 104 of the drive shaft 108, and a rotary shaft 116 of a second compressor 150 may extend therefrom and may be coupled with a second end 106 the drive shaft 108. In at least one embodiment, the rotary shafts 114, 116 of the first compressor 140 and/or the second compressor 150 may be coupled with the drive shaft 108 via one or more gears (not shown). The one or more gears coupling the rotary shafts 114, 116 of the first compressor 140 and/or the second compressor 150 with the drive shaft 108 may allow the rotary shafts 114, 116 to spin at a faster or slower rate than the drive shaft 108. In another embodiment, the rotary shafts 114, 116 of the first compressor 140 and/or the second compressor 150 may be integral with the drive shaft 108 of the driver 102. The driver 102 may drive the first and second compressors 140, 150 by providing rotation energy to the drive shaft 108, thereby rotating the rotary shafts 114, 116 coupled therewith. The drive shaft 108 may include a single segment or multiple segments (not shown) coupled with one another via one or more gears (not shown). The one or more gears coupling the multiple segments of the drive shaft 108 may allow a first segment of the drive shaft 108 to spin at a faster or slower rate than a second segment of the drive shaft 108.
[0012] The driver 102 may be an electric motor, such as a permanent magnet motor, and may include a stator (not shown) and a rotor (not shown). It may be appreciated, however, that other embodiments may employ other types of electric motors including, but not limited to, synchronous motors, induction motors, brushed DC motors, or the like. The driver 102 may also be a hydraulic motor, an internal combustion engine, a gas turbine, or any other device capable of driving the rotary shafts 114, 116 of the first and second compressors 140, 150, either directly or through a power train.
[0013] As illustrated in Figure 1, the compressors 140, 150 may be overhung at opposing ends of the driver 102. For example, the first compressor 140 may be positioned or located along the rotary shaft 114 such that the first compressor 140 may not include additional bearings on the upstream (e.g., left, as illustrated in Figure 1) side of the rotary shaft 114. Similarly, the second compressor 150 may be positioned or located along the rotary shaft 116 such that the second compressor 150 may not include additional bearings on the downstream (e.g., right, as illustrated in Figure 1) side of the rotary shaft 116. In another embodiment, however, at least one of the compressors 140, 150 may be positioned about its respective rotary shaft 114, 116 between two or more bearings (not shown).
[0014] The compressors 140, 150 may be fluidly coupled with one another via a network of piping 130. The piping 130 may be formed from a plurality of pipes, commonly referred to as lines or conduits, configured to fluidly couple the compressors 140, 150 with one another. One or more process fluids may flow through the compressors 140, 150 and the piping 130 fluidly coupling the compressors 140, 150. The compressors 140, 150 and the piping 130 may form, at least in part, a process fluid passageway through which the process fluids may be flowed, as further described herein. The process fluid flowing through the process fluid passageway may have a measurable pressure, temperature, and/or mass flow rate. The piping 130, including the lines or conduits thereof, may be configured to accommodate the process fluids and/or one or more properties (e.g., pressure, temperature, and/or mass flow rate) of the process fluids flowing therethrough. For example, a construction and/or sizing (e.g., diameter, thickness, composition, etc.) of the conduits may vary and may be determined, at least in part, by the process fluids and or properties thereof flowing therethrough.
[0015] In at least one embodiment, the process fluids pressurized, circulated, contained, or otherwise utilized in the compression system 100 may be in a fluid phase, a gas phase, a supercritical state, a subcritical state, or any combination thereof. In at least one embodiment, the compression system 100 may be utilized to compress various process fluids including high molecular weight process fluids, low molecular weight process fluids, or any mixtures or combinations thereof. High molecular weight process fluids may include those process fluids having a molecular weight of nitrogen or greater. Illustrative high molecular weight process fluids may include, but are not limited to, hydrocarbons, such as ethane, propane, butane, pentane, and hexane. Other high molecular weight process fluids may include, but are not limited to, carbon dioxide (CO2) or mixtures containing carbon dioxide. Low molecular weight process fluids may include those process fluids having a molecular weight greater than or equal to hydrogen and less than or equal to nitrogen. Illustrative low molecular weight process fluids may include, but are not limited to hydrogen or mixtures containing hydrogen.
[0016] Utilizing carbon dioxide as the process fluid or as part of a mixture of the process fluid in the compression system 100 may provide one or more advantages over other compounds that may be utilized as the process fluid. For example, carbon dioxide may provide a readily available, inexpensive, non-toxic, and non-flammable process fluid. Due in part to a relatively high working pressure of carbon dioxide, the compression system 100 incorporating carbon dioxide, or mixtures containing carbon dioxide, may be more compact than other compression systems incorporating other process fluids. The high density and high heat capacity or volumetric heat capacity of carbon dioxide with respect to other process fluids may make carbon dioxide more "energy dense," meaning that a size of the compression system 100, and/or components thereof, may be reduced without reducing performance of the compression system 100. The carbon dioxide may be of any particular type, source, purity, or grade. For example, industrial grade carbon dioxide may be utilized as the process fluid without departing from the scope of the disclosure.
[0017] As previously discussed, the process fluids may be a mixture or process fluid mixture. The process fluid mixture may be selected for the unique attributes possessed by the mixture within the compression system 100. For example, the process fluid mixture may include a liquid absorbent and carbon dioxide, or a mixture containing carbon dioxide, enabling the mixture to be compressed to a higher pressure with less energy input than required to compress carbon dioxide, or a mixture containing carbon dioxide, alone.
[0018] As shown in Figure 1, the piping 130 may include a system inlet 132 configured to provide the process fluids to the compression system 100. The process fluids provided to the system inlet 132 may be from one or more external sources (not shown). The external sources may include, but are not limited to, a process fluid storage tank, a fluid fill system, a separate system, such as a heat engine system, or any combination thereof. The system inlet 132 may be fluidly coupled with an axial inlet 142 of the first compressor 140 and may be configured to provide the process fluids thereto. The process fluids may be compressed by the first compressor 140 and discharged via an outlet 144 of the first compressor 140. In at least one embodiment, the first compressor 140 may have a compression ratio of about 2.5:1 or greater. For example, the compression ratio of the first compressor 140 may be from a low of about 2.5:1, about 2.6:1, about 2.7:1, about 2.8:1, about 2.9:1, about 3.0:1, about 3.1:1, about 3.2:1, about 3.3:1, about 3.4:1, about 3.5:1, about 3.6:1, about 3.7:1, about 3.8:1, about 3.9:1, or about 4:1 to a high of about 4.1:1, about 4.2:1, about 4.3:1, about 4.4:1, about 4.5:1, about 5:1, or greater.
[0019] To achieve the compression ratio, the first compressor 140 may include one or more inlet vanes (e.g., guide vanes), impellers, diffusers (e.g., vaned or vaneless), discharge volutes, or any combination thereof. For example, in at least one embodiment, one or more inlet vanes (not shown) may be movably coupled with the first compressor 140 and disposed in or about the axial inlet 142 and/or inlet passageway (not shown) of the first compressor 140. The axial inlet 142 and/or the inlet passageway may be defined by a compressor chassis or body (not shown) of the first compressor 140. In at least one embodiment, the axial inlet 142 and/or the inlet passageway may be circular or substantially circular and the inlet vanes may be arranged about the circular cross-section of the axial inlet 142 in a spaced apart orientation. The impeller may be coupled with or mounted to the rotary shaft 114 extending through the first compressor 140. The impeller may be positioned or located downstream of the axial inlet 142 and/or the inlet passageway of the first compressor 140. The axial inlet 142 and/or the inlet passageway may be configured to provide a straight or substantially straight flowpath to the impeller. The inlet vanes may guide or direct the process fluids flowing through the axial inlet 142 and/or the inlet passageway directly to an inlet of the impeller.
[0020] In at least one embodiment, the diffuser may be defined by the compressor chassis of the first compressor 140 and may include a diffuser passageway extending from a location downstream of the impeller. The diffuser may be receive the process fluids from the impeller and may convert kinetic energy of the process fluids from the impeller into increased static pressure. In at least one embodiment, the diffuser may include one or more moveable vanes. Alternatively, the diffuser may not include any moveable vanes (e.g. vaneless). The discharge volute may be positioned downstream of the diffuser and configured to collect the process fluids from the diffuser and discharge the process fluids to the outlet 144 of the first compressor 140.
[0021] The outlet 144 of the first compressor 140 may be fluidly coupled with an axial inlet 152 of the second compressor 150 via a first conduit 134 of the piping 130. The discharged process fluid, or first compressed process fluid, from the first compressor 140 may be directed to the second compressor 150 via the first conduit 134. The first compressed process fluid may be further compressed by the second compressor 150 and discharged via an outlet 154 of the second compressor 150. The second compressor 150 may receive the first compressed process fluid from the first compressor 140 and may further compress the first compressed process fluid to provide a second compressed process fluid having to a pressure ratio of about 10:1 or greater. In at least one embodiment, the second compressor 150 may have a compression ratio of about 2.5 or greater. For example, the compression ratio of the second compressor 150 may be from a low of about 2.5:1, about 2.6:1, about 2.7:1, about 2.8:1, about 2.9:1, about 3.0:1, about 3.1:1, about 3.2:1, about 3.3:1, about 3.4:1, about 3.5:1, about 3.6:1, about 3.7:1, about 3.8:1, about 3.9:1, or about 4:1 to a high of about 4.1:1, about 4.2:1, about 4.3:1, about 4.4:1, about 4.5:1, about 5:1, or greater.
[0022] To achieve the compression ratio, the second compressor 150, similar to the first compressor 140, may include one or more inlet vanes (e.g., guide vanes), impellers, diffusers (e.g., vaned or vaneless), discharge volutes, or any combination thereof. The arrangement or configuration of the second compressor 150 may be similar to that of the first compressor 140. For example, the second compressor 150 may include one or more inlet vanes (not shown) movably coupled with the second compressor 150 and disposed in or about the axial inlet 152 and/or inlet passageway (not shown) of the second compressor 150. The impeller (not shown) may be coupled with or mounted to the rotary shaft 116 extending through the second compressor 150 and may be positioned downstream of the axial inlet 152 and/or the inlet passageway of the second compressor 150. The diffuser (e.g., vaned or vaneless) may be defined by the compressor chassis of the second compressor 150 and may include a diffuser passageway extending from a location downstream of the impeller. The discharge volute may be positioned downstream of the diffuser and configured to collect the process fluids from the diffuse r and discharge the process fluids to the outlet 154 of the second compressor 150.
[0023] The compression system 100 including the compressors 140, 150 may have a compression ratio of at least about 10:1 or greater. For example, the compression system 100 may compress the process fluid to a pressure ratio from a low of about 10:1, about 10.1:1, about 10.2:1, about 10.3:1, about 10.4:1, about 10.5:1, about 10.6:1, about 10.7:1, about 10.8:1, about 10.9:1, or about 11:1 to a high of about 11.2:1, about 11.3:1, about 11.4:1, about 11.5:1, about 12:1, about 12.5:1, or greater. In at least one embodiment, the first compressor 140 may compress the process fluid to provide the first compressed process fluid at a desired pressure ratio, and the second compressor 150 may further compress the first compressed process fluid to provide a second compressed process fluid at a pressure ratio of at least about 10:1 or greater. The second compressor 150 may have a compression ratio sufficient to provide the second compressed process fluid at the pressure ratio of at least about 10:1 or greater. For example, the first compressor 140 may have a compression ratio of at least about 3.8:1 and may compress the process fluid to provide the first compressed process fluid at a pressure ratio of at least about 3.8:1. The second compressor 150 may have a compression ratio of at least about 2.7:1 and may further compress the first compressed process fluid to provide the second compressed process fluid at a pressure ratio of at least about 10:1 or greater.
[0024] The outlet 154 of the second compressor 150 may be fluidly coupled with an inlet 162 of a heat recovery system 160 via a second conduit 136 of the piping 130. The discharged process fluid, or second compressed process fluid, from the second compressor 150 may be directed to the heat recovery system 160 via the second conduit 136. The second compressed process fluid may contain thermal energy or heat generated from the compression of the process fluid in the first and second compressors 140, 150. The heat contained in the second compressed process fluid may be transferred to or captured by the heat recovery system 160, thereby cooling the second compressed process fluid and providing a cooled, compressed process fluid. The cooled process fluid from the heat recovery system 160 may be discharged via an outlet 164 of the heat recovery system 160. The outlet 164 of the heat recovery system 160 may be fluidly coupled with one or more downstream processing systems and/or components (not shown) via a third conduit 138 of the piping 130. The one or more downstream processing systems and/or components may be configured to further process the cooled process fluid.
[0025] The heat recovery system 160 may be any system known in the art capable of capturing and/or recycling heat (e.g., heat of compression) generated from the compression system 100. For example, the heat recovery system 160 may include one or more components and/or heat recovery sections (not shown) capable of absorbing and/or transferring heat from the second compressed process fluid. Illustrative components and/or heat recovery sections of the heat recovery system 160 may include, but are not limited to, one or more recuperators, heat exchangers, heat recovery steam generators, or any combination thereof.
[0026] The captured or absorbed heat from the heat recovery system 160 may be directed to one or more downstream processes and/or components via conduit 166 of the piping 130. The captured heat may be utilized in various processes known in the art. For example, the captured heat may be provided as a waste heat stream in a heat engine system. The captured heat may be converted into useful energy by a variety of turbine generators or heat engine systems that may employ thermodynamic methods, such as Rankine cycles. Rankine cycles and similar thermodynamic methods may include steam-based processes that recover and utilize waste heat to generate steam to drive turbines, turbos, or other expanders coupled with electric generators, pumps, or other devices.
[0027] Figure 2 illustrates a flowchart of a method 200 for compressing a process fluid, accordingly to one or more embodiments. The method 200 may include driving a first single-stage compressor and a second single-stage compressor via a drive shaft operatively coupled with the first single-stage compressor and the second single-stage compressor, the drive shaft driven by a driver, as shown at 202. The method 200 may also include compressing the process fluid via the first single-stage compressor and second single-stage compressor to provide a compressed process fluid containing heat from the compression thereof and having a pressure ratio of about 10:1 or greater, as shown at 204. The method may further include directing the compressed process fluid to a heat recovery system, as shown at 206. The method may also include absorbing at least a portion of the heat contained in the compressed process fluid in the heat recovery system, as shown at 208.
a driver (102) comprising a drive shaft (108) extending therethrough, the driver (102) configured to provide the drive shaft (108) with rotational energy;
a first single-stage compressor (140) and a second single-stage compressor (150), each comprising a rotary shaft (114, 116) coupled with or integral with the drive shaft (108), characterized in that the first single-stage compressor (140) and the second single-stage compressor (150) are configured to compress a high molecular weight process fluid and to provide a compressed process fluid having a pressure ratio of about 10:1 or greater, the compressed process fluid containing heat from the compression thereof; and in that a heat recovery system (160) is fluidly coupled with the first single-stage compressor (140) and the second single-stage compressor (150) and configured to receive the compressed process fluid therefrom and absorb at least a portion of the heat contained in the compressed process fluid, and wherein the first single-stage compressor (140) has a compression ratio of at least about 3.8:1 and is operatively coupled with a first end (104) of the drive shaft (108) and configured to compress the high molecular weight process fluid to provide a first compressed process fluid.
an axial inlet (142, 152) configured to receive the process fluid;
an impeller operatively coupled with the drive shaft (108) and positioned downstream the axial inlet (142, 152);
an inlet vane movably coupled with the axial inlet (142, 152) and configured to guide the process fluid to the impeller;
a diffuser positioned downstream from the impeller and configured to receive the process fluid from the impeller; and
a discharge volute positioned downstream the diffuser and configured to collect the process fluid from the diffuser and discharge the process fluid via an outlet (144, 154).
driving a first single-stage compressor (140) and a second single-stage compressor (150) via a drive shaft (108) operatively coupled with the first single-stage compressor (140) and the second single-stage compressor (150), the drive shaft (108) driven by a driver (102);
compressing the process fluid via the first single-stage compressor (140) and the second single-stage compressor (150) to provide a compressed process fluid containing heat from the compression thereof and having a pressure ratio of about 10:1 or greater;
directing the compressed process fluid to a heat recovery system (160);
absorbing at least a portion of the heat contained in the compressed process fluid in the heat recovery system (160); and compressing the process fluid via the first single-stage compressor (140) to provide a first compressed process fluid having a pressure ratio of at least about 3.8:1.
directing the first compressed process fluid from the first single-stage compressor (140) to the second single-stage compressor (150) via piping (130); and
compressing the first compressed process fluid via the second single-stage compressor (150) to provide the compressed process fluid having a pressure ratio of about 10:1 or greater.
an axial inlet (142, 152) configured to receive the process fluid;
a rotary shaft (114, 116) coupled with or integral with the drive shaft (108);
an impeller coupled with the rotary shaft (114, 116) and positioned downstream the axial inlet (142, 152);
an inlet vane movably coupled with the axial inlet (142, 152) and configured to guide the process fluid to the impeller;
a diffuser positioned downstream from the impeller and configured to receive the process fluid from the impeller; and
a discharge volute positioned downstream the diffuser and configured to collect the process fluid from the diffuser and discharge the process fluid via an outlet (144, 154).
einen Treiber (102), der eine sich hindurch erstreckende Antriebswelle (108) aufweist, wobei der Treiber (102) konfiguriert ist, um die Antriebswelle (108) mit Rotationsenergie zu versorgen;
einen ersten einstufigen Kompressor (140) und einen zweiten einstufigen Kompressor (150), die jeweils eine Drehwelle (114, 116) aufweisen, die mit der Antriebswelle (108) gekoppelt oder mit dieser einstückig ist, dadurch gekennzeichnet, dass
der erste einstufige Kompressor (140) und der zweite einstufige Kompressor (150) konfiguriert sind, um ein Prozessfluid mit hohem Molekulargewicht zu komprimieren und ein komprimiertes Prozessfluid mit einem Druckverhältnis von ungefähr 10:1 oder mehr bereitzustellen, wobei das komprimierte Prozessfluid Wärme aus seiner Kompression enthält; und dass
ein Wärmerückgewinnungssystem (160) fluidisch mit dem ersten einstufigen Kompressor (140) und dem zweiten einstufigen Kompressor (150) gekoppelt ist und so konfiguriert ist, um das komprimierte Prozessfluid von diesen aufzunehmen und wenigstens einen Teil der in dem komprimierten Prozessfluid enthaltenen Wärme zu absorbieren, und wobei
der erste einstufige Kompressor (140) ein Kompressionsverhältnis von wenigstens ungefähr 3,8:1 aufweist und betriebsmäßig mit einem ersten Ende (104) der Antriebswelle (108) gekoppelt ist und konfiguriert ist, um das Prozessfluid mit hohem Molekulargewicht zu komprimieren, um ein erstes komprimiertes Prozessfluid bereitzustellen.
einen axialen Einlass (142, 152), der konfiguriert ist, um das Prozessfluid aufzunehmen;
ein Laufrad, das betriebsmäßig mit der Antriebswelle (108) gekoppelt ist und das stromabwärts des axialen Einlasses (142, 152) positioniert ist;
eine Einlassschaufel, die beweglich mit dem axialen Einlass (142, 152) gekoppelt ist und die konfiguriert ist, um das Prozessfluid zum Laufrad zu lenken;
einen Diffusor, der stromabwärts vom Laufrad positioniert ist und der konfiguriert ist, um das Prozessfluid vom Laufrad aufzunehmen; und
eine Ausgabespirale, die stromabwärts des Diffusors positioniert und konfiguriert ist, um das Prozessfluid vom Diffusor zu sammeln und das Prozessfluid über einen Auslass (144, 154) abzugeben.
Antreiben eines ersten einstufigen Kompressors (140) und eines zweiten einstufigen Kompressors (150) über eine Antriebswelle (108), die betriebsmäßig mit dem ersten einstufigen Kompressor (140) und dem zweiten einstufigen Kompressor (150) gekoppelt ist, wobei die Antriebswelle (108) von einem Treiber (102) angetrieben wird;
Komprimieren des Prozessfluids über den ersten einstufigen Kompressor (140) und den zweiten einstufigen Kompressor (150), um ein komprimiertes Prozessfluid bereitzustellen, das Wärme aus seiner Komprimierung enthält und ein Druckverhältnis von ungefähr 10:1 oder mehr aufweist;
Leiten des komprimierten Prozessfluids zu einem Wärmerückgewinnungssystem (160);
Absorbieren wenigstens eines Teils der in der komprimierten Prozessflüssigkeit enthaltenen Wärme in dem Wärmerückgewinnungssystem (160); und
Komprimieren des Prozessfluids über den ersten einstufigen Kompressor (140), um ein erstes komprimiertes Prozessfluid mit einem Druckverhältnis von wenigstens ungefähr 3,8:1 bereitzustellen.
Leiten des ersten komprimierten Prozessfluids vom ersten einstufigen Kompressor (140) zum zweiten einstufigen Kompressor (150) über eine Leitung (130); und
Komprimieren des ersten komprimierten Prozessfluids über den zweiten einstufigen Kompressor (150), um das komprimierte Prozessfluid mit einem Druckverhältnis von ungefähr 10:1 oder mehr bereitzustellen.
einen axialen Einlass (142, 152), der konfiguriert ist, um das Prozessfluid aufzunehmen;
eine Drehwelle (114, 116), die mit der Antriebswelle (108) gekoppelt oder mit dieser einstückig ist;
ein Laufrad, das mit der Drehwelle (114, 116) gekoppelt ist und stromabwärts des axialen Einlasses (142, 152) positioniert ist;
eine Einlassschaufel, die beweglich mit dem axialen Einlass (142, 152) gekoppelt ist und konfiguriert ist, um das Prozessfluid zum Laufrad zu lenken;
einen Diffusor, der stromabwärts vom Laufrad positioniert ist und konfiguriert ist, um das Prozessfluid von dem Laufrad aufzunehmen; und
eine Ausgabespirale, die stromabwärts des Diffusors positioniert ist und konfiguriert ist, um das Prozessfluid vom Diffusor zu sammeln und das Prozessfluid über einen Auslass (144, 154) abzugeben.
un dispositif d'entraînement (102) comprenant un arbre d'entraînement (108) s'étendant à travers celui-ci, le dispositif d'entraînement (102) configuré pour fournir à l'arbre d'entraînement (108) une énergie de rotation ;
un premier compresseur à un étage (140) et un deuxième compresseur à un étage (150), chacun comprenant un arbre rotatif (114, 116) couplé ou intégré à l'arbre d'entraînement (108), caractérisé en ce que le premier compresseur à un étage (140) et le deuxième compresseur à un étage (150) sont configurés pour comprimer un fluide de traitement de poids moléculaire élevé et pour fournir un fluide de traitement comprimé ayant un rapport de pression d'environ 10:1 ou plus, le fluide de traitement comprimé contenant de la chaleur à partir de la compression de celui-ci ; et en ce qu'un système de récupération de chaleur (160) est couplé fluidiquement au premier compresseur à un étage (140) et au deuxième compresseur à un étage (150) et configuré pour recevoir le fluide de traitement comprimé à partir de celui-ci et absorber au moins une partie de la chaleur contenue dans le fluide de traitement comprimé, et dans lequel le premier compresseur à un étage (140) a un rapport de compression d'au moins environ 3,8:1 et est couplé de manière opérationnelle à une première extrémité (104) de l'arbre d'entraînement (108) et configuré pour comprimer le fluide de traitement de poids moléculaire élevé pour fournir un premier fluide de traitement comprimé.
une entrée axiale (142, 152) configurée pour recevoir le fluide de traitement ;
un impulseur couplé de manière opérationnelle à l'arbre d'entraînement (108) et positionné en aval de l'entrée axiale (142, 152) ;
une aube d'entrée couplée de manière mobile à l'entrée axiale (142, 152) et configurée pour guider le fluide de traitement vers l'impulseur ;
un diffuseur positionné en aval de l'impulseur et configuré pour recevoir le fluide de traitement à partir de l'impulseur ; et
une volute de décharge positionnée en aval du diffuseur et configurée pour collecter le fluide de traitement à partir du diffuseur et décharger le fluide de traitement via une sortie (144, 154).
l'entraînement d'un premier compresseur à un étage (140) et d'un deuxième compresseur à un étage (150) via un arbre d'entraînement (108) couplé de manière opérationnelle au premier compresseur à un étage (140) et au deuxième compresseur à un étage (150), l'arbre d'entraînement (108) entraîné par un dispositif d'entraînement (102) ;
la compression du fluide de traitement via le premier compresseur à un étage (140) et le deuxième compresseur à un étage (150) pour fournir un fluide de traitement comprimé contenant de la chaleur à partir de la compression de celui-ci et ayant un rapport de pression d'environ 10:1 ou plus ;
la direction du fluide de traitement comprimé vers un système de récupération de chaleur (160) ;
l'absorption d'au moins une partie de la chaleur contenue dans le fluide de traitement comprimé dans le système de récupération de chaleur (160) ; et la compression du fluide de traitement via le premier compresseur à un étage (140) pour fournir un premier fluide de traitement comprimé ayant un rapport de pression d'au moins environ 3,8:1.
la direction du premier fluide de traitement comprimé à partir du premier compresseur à un étage (140) vers le deuxième compresseur à un étage (150) via de la tuyauterie (130) ; et
la compression du premier fluide de traitement comprimé via le deuxième compresseur à un étage (150) pour fournir le fluide de traitement comprimé ayant un rapport de pression d'environ 10:1 ou plus.
une entrée axiale (142, 152) configurée pour recevoir le fluide de traitement ;
un arbre rotatif (114, 116) couplé ou intégré à l'arbre d'entraînement (108) ;
un impulseur couplé à l'arbre rotatif (114, 116) et positionné en aval de l'entrée axiale (142, 152) ;
une aube d'entrée couplée de manière mobile à l'entrée axiale (142, 152) et configurée pour guider le fluide de traitement vers l'impulseur ;
un diffuseur positionné en aval de l'impulseur et configuré pour recevoir le fluide de traitement à partir de l'impulseur ; et
une volute de décharge positionnée en aval du diffuseur et configurée pour collecter le fluide de traitement à partir du diffuseur et décharger le fluide de traitement via une sortie (144, 154).
REFERENCES CITED IN THE DESCRIPTION
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Patent documents cited in the description