EP3571450A1 - Wärmepumpenanordnung und verfahren zum betrieb einer wärmepumpenanordnung - Google Patents
Wärmepumpenanordnung und verfahren zum betrieb einer wärmepumpenanordnungInfo
- Publication number
- EP3571450A1 EP3571450A1 EP18706390.4A EP18706390A EP3571450A1 EP 3571450 A1 EP3571450 A1 EP 3571450A1 EP 18706390 A EP18706390 A EP 18706390A EP 3571450 A1 EP3571450 A1 EP 3571450A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat
- working fluid
- heat pump
- bypass line
- pump assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 47
- 238000001816 cooling Methods 0.000 claims description 33
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000001704 evaporation Methods 0.000 claims description 8
- 230000008020 evaporation Effects 0.000 claims description 8
- IYRWEQXVUNLMAY-UHFFFAOYSA-N fluoroketone group Chemical group FC(=O)F IYRWEQXVUNLMAY-UHFFFAOYSA-N 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 abstract 1
- 239000002918 waste heat Substances 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
- F25B31/006—Cooling of compressor or motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/001—Ejectors not being used as compression device
- F25B2341/0012—Ejectors with the cooled primary flow at high pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/04—Refrigeration circuit bypassing means
Definitions
- the invention relates to a heat pump assembly according to the preamble of claim 1. Furthermore, the invention relates to He ⁇ a method for operating a heat pump assembly according to the preamble of claim 10.
- Heat pumps using thermal energy (heat) to heat ⁇ source to evaporate a working fluid It is advantageous if the evaporation temperature of the working fluid is as high as possible, since this achieves a low pressure ratio and thus a high coefficient of performance (COP for short). Consequently, a mög ⁇ lichst small temperature difference between the sources of heat ⁇ le and the evaporation temperature is advantageous. Typically, a temperature difference of about five Kelvin is used, so that at a temperature of the heat source of 80 degrees Celsius an evaporation temperature of 75 degrees Celsius is provided.
- the heat pump arrangement comprises a compressor, a condenser and an evaporator, which are fluidically coupled by means of a working cycle for a working fluid.
- the heat pump arrangement comprises a heat exchanger, a jet pump and a
- bypass line configured to at least a portion of the working fluid after the jet pump and before the evaporator to the heat exchanger and back to
- the working cycle of the heat pump assembly can therefore be divided into a primary and a secondary working cycle.
- the primary working cycle ei ⁇ NEN heat pump cycle .
- the secondary working circuit is formed by the bypass line.
- the working cycle or working cycles have a direction with respect to which an element of the heat pump assembly is arranged before or after another element of the heat pump assembly.
- a low temperature-controlled heat source is thermally coupled with the overall heat exchanger can be efficiently integrated into the work circuit of the heat pump.
- the ther ⁇ mix energy of the heat source is at least partially transferred to the working fluid within the bypass line.
- the da ⁇ by warmed working fluid to the jet pump intimidge- passes and serves as a suction medium preferably, said original from the capacitor coming working fluid (not expanded condensate) is provided as a driving medium. Because of ⁇ are advantageous for driving the Bypass line no additional structural components, such as pumps, required.
- ⁇ further improved by the energy efficiency of the heat pump assembly, since, for example, no pump for the bypass line must be supplied with electrical energy.
- the jet pump as an expansion valve and a pump for the working fluid vorgese ⁇ hen, the pumping action finished by the verwen- as a driving medium unexpanded condensed working fluid is istge ⁇ represents.
- a typical expansion valve in the primary working cycle of the heat pump assembly can be saved.
- Other advantages of the jet pump are that it is particularly simple in construction, typically has no moving construction ⁇ parts and is particularly robust and low maintenance.
- a working fluid is compressed within an Ar ⁇ beitsniklaufes by a compressor, condensed with ⁇ means of a capacitor and evaporated by means of a Ver ⁇ steamer.
- a part of the working fluid is conducted by means of a bypass line to a jet pump of the heat pump arrangement and before the evaporator to a heat exchanger for heat exchange and back to the jet pump.
- jet pump designed as ejector.
- the jet pump generates a negative pressure, due to which the bypass line is operable, that is due to which the working fluid in the bypass line is sucked back into the primary working cycle.
- bypass line is preferably configured to guide the working fluid back to a suction port of the jet pump.
- the heat exchanger is designed as a heat exchanger of a cooling device.
- the bypass line is thermally coupled by means of a common heat exchanger with the cooling device, so that the heat exchange takes place by means of theificattau ⁇ shear of the cooling device.
- the heat dissipated by the cooling device for cooling is thereby further used.
- the energy effi ⁇ ciency of the heat pump device and the cooling device is increased.
- the cooling device for cooling the compressor is an etc.
- the compressor of the heat pump is cooled by the cooling device.
- the heat removed by the cooling of the compressor heat is conducted again to the heat pump ⁇ circuit by means of the heat exchanger in the bypass line to ⁇ , so that the energy efficiency of the furnishedpumpenan ⁇ order is further increased.
- the waste heat generated by the Be ⁇ operation of the compressor therefore, is not completely lost, but is at least partially Harborge ⁇ and returned to the heat pump cycle.
- externaldenikläu ⁇ fe or cooling devices for cooling the compressor can be saved. This reduces the investment costs.
- the structural compactness of the system is improved because additional elements for dissipating the waste heat of the compressor, such as cooling fins or cooling towers, can be saved.
- the cooling device is designed to cool a transmission device of the compressor.
- the cooling device is particularly preferably designed as a transmission oil cooling.
- an oil which is typically provided for cooling the transmission device, led from the Geretevorrich- direction to the heat exchanger.
- the heat exchanger is designed as an oil cooler.
- the bypass line comprises an expansion valve, wherein the expansion ⁇ valve is arranged in front of the heat exchanger.
- the pressure of the working fluid within the bypass line can be adjusted such that a defined heating or an evaporation of the working fluid takes place in the heat exchanger.
- the pressure of the working fluid is adjusted before the heat exchanger within the bypass line by means of the at least one expansion valve.
- the evaporation pressure of the working fluid within the evaporator can be adjusted by means of the jet pump.
- the jet pump is provided as an expansion valve.
- the heat pump arrangement comprises a working fluid which has at least one substance from the group of fluoroketones and / or hydrofluoroolefins and / or hydrofluorochloroolefins.
- the working fluid used is at least one fluoroketone and / or hydrofluoroolefins and / or hydrofluorochloroolefins.
- Another advantage of the said working fluids is their technical handling. They are characterized by good environmental compatibility and ten of their enjoyedeigenschaf- such as no flammability or a very ge ⁇ ring global warming potential from.
- the single figure shows a schematic circuit diagram of a heat pump assembly according to an embodiment of the present invention.
- a heat pump assembly 1 according to an embodiment of the present invention is shown schematically.
- the heat pump arrangement 1 has a compressor 2, a condenser 6, an evaporator 8 and a jet pump 42.
- the heat pump assembly comprises a primary and secondary working circuit 101, 102 for a working ⁇ fluid.
- the primary working circuit 101 forms a heat on mepumpen Vietnamese Feed, wherein the working fluid in the dense Ver ⁇ 2 compressed, condensed in the condenser 6, is evaporated in the evaporator 8 and is expanded by means of the jet pump 42nd
- a heat pump is formed by the compressor 2, the condenser 6, the evaporator 8 and the jet pump 42.
- the secondary working cycle 102 is by means of a
- Bypass line 4 is formed, which branches off after the jet pump 42 and before the evaporator 8, and at least a portion of the working fluid via a heat exchanger 41 back to a suction port of the jet pump 42 leads.
- the working circuits 101, 102 are therefore connected fluidically in parallel with respect to the working fluid.
- the jet pump 42 is designed as ejector, so that a
- Vacuum is generated, which sucks the working fluid from the bypass line 4 again.
- the heat exchanger 41 is coupled to a cooling line 12 of an oil cooling.
- the heat exchanger can be used with any heat source, in particular with low-temperature
- Waste heat sources be thermally coupled.
- the waste heat is transferred via the heat exchanger 41 to the working fluid in the Bypass line 4 at least partially transmitted.
- the pressure at which said heat transfer occurs in the heat exchanger 41 can be adjusted by means of an expansion valve 40.
- the oil cooling is provided for the cooling of a transmission device 21 of the compressor 2.
- cooling lines 12 are fluidically coupled to the transmission device 21. This will advantageously the
- Compressor 2 and its transmission device 21 cooled.
- the waste heat of the transmission device 21 is - in contrast to known cooling a compressor - not completely lost, since at least a part by means of the heat exchanger 41 and by means of the inventively provided
- Bypass line 4 is transmitted to the working fluid of the heat pump.
- the energy efficiency of the heat pump assembly 1, which essentially forms a heat pump in the illustrated embodiment, is increased.
- the heat pump assembly 1 provides an improved heat pump.
- the compressor 2 comprises an electric motor 22 for its operation, which can also be cooled by means of oil cooling.
- the jet pump 42 in conjunction with the bypass line 4 therefore allows the integration of a heat source with a comparatively low temperature level, without additional power-consuming components, such as pumps.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Jet Pumps And Other Pumps (AREA)
- Compressor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017203043.7A DE102017203043A1 (de) | 2017-02-24 | 2017-02-24 | Wärmepumpenanordnung und Verfahren zum Betrieb einer Wärmepumpenanordnung |
PCT/EP2018/051506 WO2018153589A1 (de) | 2017-02-24 | 2018-01-23 | Wärmepumpenanordnung und verfahren zum betrieb einer wärmepumpenanordnung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3571450A1 true EP3571450A1 (de) | 2019-11-27 |
EP3571450B1 EP3571450B1 (de) | 2020-12-30 |
Family
ID=61256889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18706390.4A Active EP3571450B1 (de) | 2017-02-24 | 2018-01-23 | Wärmepumpenanordnung und verfahren zum betrieb einer wärmepumpenanordnung |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP3571450B1 (de) |
JP (1) | JP2020508433A (de) |
KR (1) | KR20190105228A (de) |
CN (1) | CN110337573A (de) |
DE (1) | DE102017203043A1 (de) |
DK (1) | DK3571450T3 (de) |
WO (1) | WO2018153589A1 (de) |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5043345U (de) * | 1973-08-14 | 1975-05-01 | ||
JPS5218242A (en) * | 1975-08-01 | 1977-02-10 | Sharp Corp | Refrigerating cycle |
KR20060128041A (ko) * | 2004-03-04 | 2006-12-13 | 이 아이 듀폰 디 네모아 앤드 캄파니 | 할로케톤 냉매 조성물 및 이의 용도 |
CN107384323A (zh) * | 2008-07-30 | 2017-11-24 | 霍尼韦尔国际公司 | 含有二氟甲烷和氟取代的烯烃的组合物 |
ES2601854T3 (es) | 2009-02-27 | 2017-02-16 | Vestas Wind Systems A/S | Una turbina eólica y un método para la refrigeración de un componente que genera calor de una turbina eólica |
JP5370028B2 (ja) | 2009-09-10 | 2013-12-18 | 株式会社デンソー | エジェクタ |
JP5328713B2 (ja) * | 2010-04-27 | 2013-10-30 | 三菱電機株式会社 | 冷凍サイクル装置 |
JP2012172917A (ja) * | 2011-02-22 | 2012-09-10 | Nippon Soken Inc | 冷却装置 |
JP5482767B2 (ja) * | 2011-11-17 | 2014-05-07 | 株式会社デンソー | エジェクタ式冷凍サイクル |
TWI577949B (zh) | 2013-02-21 | 2017-04-11 | 強生控制科技公司 | 潤滑及冷卻系統 |
CN105143787B (zh) * | 2013-03-25 | 2018-04-17 | 开利公司 | 压缩机轴承冷却 |
JP6186998B2 (ja) | 2013-07-31 | 2017-08-30 | 株式会社デンソー | 車両用空調装置 |
JP5999050B2 (ja) | 2013-08-29 | 2016-09-28 | 株式会社デンソー | エジェクタ式冷凍サイクルおよびエジェクタ |
DE202014010264U1 (de) | 2014-01-09 | 2015-02-25 | Siemens Aktiengesellschaft | Fahrzeug mit einer Kompressionskältemaschine |
JP2015194300A (ja) * | 2014-03-31 | 2015-11-05 | 荏原冷熱システム株式会社 | ターボ冷凍機 |
JP6448936B2 (ja) * | 2014-07-15 | 2019-01-09 | 三菱重工サーマルシステムズ株式会社 | ターボ冷凍機の油回収装置 |
CN204593934U (zh) * | 2014-12-11 | 2015-08-26 | 华南理工大学 | 一种电动车废热利用变频热泵空调系统 |
CN105823256B (zh) * | 2016-03-22 | 2018-11-06 | 东南大学 | 一种压缩机回油冷却的空气源热泵装置的工作方法 |
CN105890210B (zh) | 2016-06-01 | 2018-09-07 | 珠海格力电器股份有限公司 | 一种高温空调机组 |
CN205669895U (zh) * | 2016-06-01 | 2016-11-02 | 珠海格力电器股份有限公司 | 一种高温空调机组 |
-
2017
- 2017-02-24 DE DE102017203043.7A patent/DE102017203043A1/de not_active Withdrawn
-
2018
- 2018-01-23 CN CN201880013009.2A patent/CN110337573A/zh active Pending
- 2018-01-23 EP EP18706390.4A patent/EP3571450B1/de active Active
- 2018-01-23 KR KR1020197021824A patent/KR20190105228A/ko not_active Application Discontinuation
- 2018-01-23 JP JP2019546139A patent/JP2020508433A/ja active Pending
- 2018-01-23 DK DK18706390.4T patent/DK3571450T3/da active
- 2018-01-23 WO PCT/EP2018/051506 patent/WO2018153589A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
KR20190105228A (ko) | 2019-09-16 |
DE102017203043A1 (de) | 2018-08-30 |
DK3571450T3 (da) | 2021-03-08 |
WO2018153589A1 (de) | 2018-08-30 |
JP2020508433A (ja) | 2020-03-19 |
CN110337573A (zh) | 2019-10-15 |
EP3571450B1 (de) | 2020-12-30 |
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