EP 3222929 A4 20180808 - BOILER HAVING CHECK VALVE INTEGRATED WITH WATER PIPE LINE
Title (en)
BOILER HAVING CHECK VALVE INTEGRATED WITH WATER PIPE LINE
Title (de)
KESSEL MIT IN DER WASSEROHRLEITUNG INTEGRIERTEM RÜCKSCHLAGVENTIL
Title (fr)
CHAUDIÈRE AYANT UN CLAPET DE RETENUE INTÉGRÉ À UNE CONDUITE D'EAU
Publication
Application
Priority
- KR 20140161462 A 20141119
- KR 2015012283 W 20151116
Abstract (en)
[origin: EP3222929A1] The objective of the present invention is to provide a boiler having a check valve integrated with a water pipe line, the boiler being capable of simplifying and miniaturizing the structure of a water pipe. The present invention comprises: a three-way valve for changing a heating water passage in order to supply heating water, heated in a main heat exchanger, to a place to be heated or to selectively supply the same to a heat exchanger for hot water supply; a bypass pipe connecting the three-way valve, and a heating water return pipe connecting the place to be heated and the main heat exchanger; and a check valve provided at a bypass pipe line so as to allow fluid to flow in only one direction from the three-way valve toward the heating water return pipe when a heating pipe connected to the place to be heated or a heating pipe connected to the heat exchanger for hot water supply is closed such that overpressure is generated, wherein the three-way valve, the bypass pipe and the check valve are provided in an integrated form in the same water pipe module.
IPC 8 full level
F24D 3/08 (2006.01); F24D 3/10 (2006.01); F24H 9/14 (2006.01); F24H 9/20 (2006.01)
CPC (source: CN EP RU)
F24D 3/08 (2013.01 - EP); F24D 3/105 (2013.01 - EP); F24H 9/144 (2013.01 - EP); F24H 9/146 (2013.01 - EP); F24H 9/20 (2013.01 - CN RU); F24D 2220/0207 (2013.01 - EP); F24D 2220/0228 (2013.01 - EP); F24D 2220/0235 (2013.01 - EP); F24D 2220/025 (2013.01 - EP); F24D 2220/0278 (2013.01 - EP); F24D 2220/044 (2013.01 - EP)
Citation (search report)
- [XAYI] EP 2397777 A1 20111221 - GRUNDFOS MANAGEMENT AS [DK]
- [XAYI] EP 2148149 A2 20100127 - O T M A S N C DI SPAGGIARI & C [IT]
- [XAYI] EP 1884717 A1 20080206 - GRUNDFOS MANAGEMENT AS [DK]
- [X] EP 1884720 A1 20080206 - GRUNDFOS MANAGEMENT AS [DK]
- [X] EP 1188991 A1 20020320 - CHAFFOTEAUX ET MAURY [FR]
- [Y] WO 2013005976 A2 20130110 - KYUNGDONG NAVIEN CO LTD [KR], et al
- [Y] EP 1832816 A2 20070912 - ELTEK SPA [IT]
- See references of WO 2016080715A1
Designated contracting state (EPC)
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
DOCDB simple family (publication)
EP 3222929 A1 20170927; EP 3222929 A4 20180808; CN 107076461 A 20170818; CN 107076461 B 20200131; KR 101639188 B1 20160713; KR 20160059678 A 20160527; RU 2017121072 A 20181220; RU 2017121072 A3 20181220; RU 2676172 C2 20181226; WO 2016080715 A1 20160526
DOCDB simple family (application)
EP 15860937 A 20151116; CN 201580059743 A 20151116; KR 20140161462 A 20141119; KR 2015012283 W 20151116; RU 2017121072 A 20151116