WO2012161446A2 - Système de pompe à chaleur - Google Patents

Système de pompe à chaleur Download PDF

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Publication number
WO2012161446A2
WO2012161446A2 PCT/KR2012/003749 KR2012003749W WO2012161446A2 WO 2012161446 A2 WO2012161446 A2 WO 2012161446A2 KR 2012003749 W KR2012003749 W KR 2012003749W WO 2012161446 A2 WO2012161446 A2 WO 2012161446A2
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WO
WIPO (PCT)
Prior art keywords
heat exchanger
heat
outdoor
way valve
supply pipe
Prior art date
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Ceased
Application number
PCT/KR2012/003749
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English (en)
Korean (ko)
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WO2012161446A3 (fr
Inventor
진주환
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Individual
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Individual
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Publication of WO2012161446A2 publication Critical patent/WO2012161446A2/fr
Publication of WO2012161446A3 publication Critical patent/WO2012161446A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • 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
    • F25B30/00—Heat pumps
    • F25B30/06—Heat pumps characterised by the source of low potential heat
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/004—Outdoor unit with water as a heat sink or heat source
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/021—Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit

Definitions

  • the present invention relates to a heat pump system, and more particularly, to a defrosting and cooling structure of an outdoor heat exchanger of an air heat source heat pump system.
  • the heat pump operates the steam compression refrigeration cycle in the opposite direction to the cooling (freezing) operation, i.e., the indoor heat exchanger acts as the condenser, the outdoor heat exchanger as the evaporator during the heating operation, and the outdoor heat exchanger during the cooling operation.
  • the refrigerant is evaporated or condensed in the outdoor heat exchanger.
  • the air heat source heat pump is installed to expose the outdoor heat exchanger to the outside air to evaporate or condense the refrigerant by the outside air, especially when the outside air temperature falls below the dew point temperature during the heating operation. Condensation of the refrigerant liquid in the outdoor heat exchanger, which acts as a condenser when the frost condenses, may cause the evaporation of the refrigerant vapor to evaporate or become impossible.
  • the poor coefficient of performance is deteriorating, and the above-mentioned problem has been solved, which is one of the key topics in the development of heat pump technology.
  • the refrigeration cycle is converted into a reverse cycle, that is, the outdoor heat exchanger acting as an evaporator is acted as a condenser, or an electrothermal heater is installed in the outdoor heat exchanger. It is well known to deteriorate the coefficient of frost by defrosting the frost attached to the surface, but the former causes the heating operation to be interrupted, and the latter is not only to improve the coefficient of coefficient but also requires extra energy.
  • the invention relates to the defrosting and cooling promotion structure of the outdoor heat exchanger of the air heat source heat pump system, which corrects the problems of the known defrosting technology, namely reverse cycle operation and heat heater installation, and improves the coefficient of performance by the non-heating heat source. It is disclosed by patent document 1.
  • the defrosting and cooling promotion structure of the outdoor heat exchanger of the air heat source heat pump system of Patent Document 1 includes a compressor, a four-way valve, an indoor heat exchanger, a cooling expansion valve, a heating expansion valve, an outdoor heat exchanger, and the four-way.
  • a basic refrigeration circuit connecting the valves in order to the refrigerant conduit and connecting the four-way valve and the compressor to the refrigerant suction conduit;
  • a heat storage tank in which both ends of the bypass refrigerant conduit are connected between both expansion valves of the refrigerant conduit to install a heat exchanger for the bypass refrigerant conduit, and surround the heating heat exchanger, and inject a heat medium therein;
  • An auxiliary heat exchanger installed in the outdoor heat exchanger by connecting a heat medium supply pipe having a heat medium circulation pump to the heat storage tank and a heat medium return pipe;
  • a heat exchanger is installed in the heat medium supply pipe and the heat medium return pipe, and the heat medium supply pipe and the heat medium return pipe are installed, and an outdoor heat exchanger defrost and cooling means is provided around the heat exchanger.
  • the defrosting and cooling promotion structure of the outdoor heat exchanger of the air heat source heat pump system is heat-exchanged by heat-exchanging the heat source circulating the heat source and the non-heat source supplied to the heat source storage tank for heat-free storage, and then heating or cooling the heat medium.
  • the auxiliary heat exchanger is circulated to defrost the outdoor heat exchanger during the heating operation, and the cooling coefficient is maintained to be satisfactorily maintained by supercooling the refrigerant liquid condensed in the indoor or outdoor heat exchanger.
  • the defrosting and cooling facilitation structure of the outdoor heat exchanger of the air heat source heat pump system provides good heat source (latent heat) contained in the air when the refrigerant liquid or refrigerant vapor circulating the outdoor heat exchanger is evaporated or condensed by the atmosphere.
  • a forced convection type outdoor heat exchanger installed with a fan should be used for the purpose of use.
  • the auxiliary heat exchanger installed in the forced convection type outdoor heat exchanger as described above has a heating medium (with brine) of a predetermined temperature (about 20 ° C.) heated in a heat-free storage tank for free use.
  • the heat of the heat source for the non-heat source is lost (discharged) due to the suction or pressure of the fan.
  • Low and low utilization efficiency of the non-heat source for heat as described above, the improvement of the grade coefficient is also low Claim to being able dots.
  • the present invention provides an air heat source type heat pump system that can improve the utilization efficiency of the non-heat source for circulating the heat medium heat-exchanged with the non-heat source for heat to the outdoor heat exchanger, and improve the coefficient of performance. It aims to do it.
  • the present invention is connected to the compressor, 4-way valve, indoor heat exchanger, cooling expansion valve, heating expansion valve, outdoor heat exchanger and the 4-way valve in order to the refrigerant conduit,
  • a basic refrigeration cycle connecting the way valve and the compressor to the refrigerant suction conduit;
  • a defrosting and cooling means for installing an auxiliary heat exchanger in the outdoor heat exchanger and installing a heat exchanger in a heat-free storage source for connecting the auxiliary heat exchanger and the heat exchanger so that a closed circuit is formed by a circulation pump-attached heat medium supply pipe and a heat medium return pipe;
  • a performance improving means installed between the outdoor heat exchanger and the 4-way valve of the heat medium supply pipe and the refrigerant conduit.
  • the present invention heats and heats an auxiliary heat exchanger installed in an outdoor heat exchanger by heating or cooling a heat source for circulating a heat source and a heat exchanger and circulating the heated or cooled heat medium and driving a fan. It prevents the adhesion of frost to the outdoor heat exchanger or defrosts the attached frost, and during the cooling operation to condense the refrigerant vapor in the outdoor heat exchanger, in the case of the above heating operation, the heat retention of the heat medium heated in the heat exchanger
  • Can evaporate or superheat steam Aekbaek to prevent liquid hammer or of the compressor to prevent damage to the compressor and also to addition to improving the coefficient of performance.
  • the refrigerant vapor of the high temperature and high pressure compressed by the compressor is first condensed in the endothermic and heat radiating heat exchanger of the performance improving means before condensing in the outdoor heat exchanger, and then recondensed in the outdoor heat exchanger. Because of the good condensation, this also contributes to the improvement of the coefficient of performance, which can improve the performance.
  • FIG. 1 is a block diagram of an embodiment of the present invention.
  • FIG. 1 is a block diagram of an embodiment of the present invention, which is roughly divided into a basic refrigeration cycle 10, defrosting and cooling means 20, and performance improving means 30. As shown in FIG.
  • the basic refrigeration cycle 10 includes a compressor 11, a 4-way valve 12, an indoor heat exchanger 13, a cooling expansion valve 14, a heating expansion valve 15, an outdoor heat exchanger 16 and
  • the 4-way valve 12 is connected in sequence to the refrigerant conduit 17, and the 4-way valve 12 and the compressor 11 are connected to the refrigerant suction conduit 18, and the basic refrigeration cycle 10 Is based on the air heat source.
  • the defrosting and cooling means 20 may install the heat exchanger tube of the auxiliary heat exchanger 22 between the heat exchanger tubes of the outdoor heat exchanger 16, or fin the auxiliary heat exchanger 22 on the side of the outdoor heat exchanger 16. fins are integrally formed and integrally formed, or a separate auxiliary heat exchanger 22 is provided on the side of the outdoor heat exchanger 16, and a heat exchanger 21 is provided in the heat source storage tank 23 for the non-heating.
  • the auxiliary heat exchanger 22 and the heat exchanger 21 are connected to each other in such a way that a closed circuit is formed by the heat medium supply pipe 24a and the heat medium return pipe 24b provided with the circulation pump 25, and the heat exchanger 21 and the like. Is injecting a heat medium (a material having a low freezing temperature such as ethylene glycol).
  • the heat source supplied to the unheated heat source storage tank 23 is to prevent environmental destruction by using renewable energy such as river water, sea water, ground water collected, solar heat collecting device (air or hot water), rainwater, waste water, etc.
  • renewable energy such as river water, sea water, ground water collected, solar heat collecting device (air or hot water), rainwater, waste water, etc.
  • the performance improving means 30 is installed between the heat exchanger supply pipe 24a and the outdoor heat exchanger 16 of the refrigerant conduit 17 and the 4-way valve 12, and during the heating operation, the compressor ( 11) The wet saturated vapor heated by 11) is heated, and during the cooling operation, primary cooling is performed before the high temperature / high pressure refrigerant vapor compressed by the compressor 11 is supplied to the outdoor heat exchanger 16.
  • the performance improving means (30) is provided with a heat dissipation heat exchanger (31) in the heat medium supply pipe (24a), and the heat dissipation heat exchanger between the 4-way valve (12) of the refrigerant conduit (17) and the outdoor heat exchanger (16).
  • the heat absorption and heat dissipation heat exchanger 32 is provided so as to maintain a heat exchange relationship with the gas 31.
  • the bypass conduit 27 for bypassing the heat dissipation heat exchanger 31 is connected to the heat medium supply pipe 24a, and a 3-way valve is connected to the inlet side connection of the heat medium supply pipe 24a and the bypass conduit 27. 28), the heating medium is operated to be supplied to the heat dissipation heat exchanger 31 during the heating operation, and the heating medium is flowed into the bypass conduit 27 during the cooling operation to prevent heating of the heating medium, In the cooling heat exchanger 32, the condensation of the refrigerant vapor is improved.
  • Reference numerals 41 and 42 are check valves.
  • the outdoor heat exchanger 16 is provided with a suction type or a pressurized fan (not shown) to improve the evaporation of the refrigerant liquid and the condensation of the refrigerant vapor, which is well known in an air heat source heat pump.
  • the indoor heat exchanger 13 operates by heating the 4-way valve 12 so that the refrigerant flows in the solid line of the arrow in FIG. It functions as a condenser at the time of operation and an evaporator at the time of cooling operation, and functions as a heating function and a cooling function is the same as the conventional thing.
  • the outside air temperature falls below the dew point temperature during the heating operation and the cooling operation as described above, or when the non-thermal heat source is circulated to the non-heating heat source storage tank 23 in a cold weather or the like, it is heat exchanged with the heat medium in the heat exchanger 21, and the heat medium is heated. In operation, the temperature is higher than the outside temperature, and in the cooling operation, the temperature is lower than the outside temperature.
  • the heating medium is circulated to the auxiliary heat exchanger 22 by driving the circulation pump 25, the heating medium is heated or lower. It prevents frost from forming on the heat exchanger tube and fin of the outdoor heat exchanger 16 or defrosts the formed frost.
  • the heat exchanger tube and fin of the outdoor heat exchanger 16 is cooled to improve the condensation of the refrigerant vapor. It is possible to improve the temperature, and the higher the temperature of the non-heating heat source when operating as described above, the better in cold weather during the heating operation, and the temperature exceeds 25 ° C during the cooling operation. That is recommended.
  • the 3-way valve 28 When the heat medium heat-exchanged in the heat exchanger 21 is circulated to the auxiliary heat exchanger 22, the 3-way valve 28 is operated so that the heat medium flows to the heat-dissipating heat exchanger 31 during the heating operation.
  • the heat medium passing through (31) heats its retaining heat after being evaporated in the outdoor heat exchanger (16) and then heat exchanged with the wet vaporized steam sucked into the compressor (11) via the endothermic and heat radiating heat exchanger (32). After being lowered, heat is dissipated in the auxiliary heat exchanger 22 installed in the outdoor heat exchanger 16, thereby reducing the loss of heat of the heat medium into the air even when the fan is driven.
  • the compressor 11 when the wet saturated vapor vaporized in the outdoor heat exchanger 16 and sucked into the compressor 11 is heat-exchanged with a heat medium circulating through the heat radiating heat exchanger 31 to dry the saturated steam or superheated steam, the compressor 11 By preventing the liquid bag or liquid to be generated in the), it is possible to improve the reliability of the compressor (11) and improve the coefficient of performance.
  • the high-temperature / high-pressure refrigerant vapor compressed by the compressor 11 is transferred to the outdoor heat exchanger 16.
  • the first condensation is passed through the endothermic and heat dissipating heat exchanger 32 before condensation and then recondensed in the outdoor heat exchanger 16, thereby improving the condensation of the refrigerant vapor.
  • the three-way valve 28 is operated so that the heat medium flows to the bypass conduit 27 side, thereby preventing the heat medium from being heated by the heat of release of the endothermic and heat dissipating heat exchanger 32, thereby maintaining a constant temperature in the auxiliary heat exchanger 22. Only the following heat medium is circulated to improve the condensation of the refrigerant vapor.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

La présente invention concerne un système de pompe à chaleur et plus spécifiquement une structure de dégivrage et refroidissement d'un échangeur thermique extérieur d'un système de pompe à chaleur de type air-air permettant d'améliorer l'efficacité de l'utilisation d'une source de chaleur gratuite et d'augmenter le coefficient de performance de cette source de chaleur à un niveau satisfaisant, lors de la circulation de la source de chaleur gratuite et d'un moyen de chauffage à échange de chaleur vers l'échangeur thermique extérieur. Le système selon la présente invention comprend: un cycle de congélation de base (10) pourvu d'un compresseur (11), un robinet à quatre voies (12), un échangeur thermique intérieur (13), un détendeur (14) assurant le refroidissement, un détendeur (15) assurant le chauffage, un échangeur thermique extérieur (16) et le robinet à quatre voies (12),étant reliés à un tuyau d'aspiration de fluide frigorigène (18), dans l'ordre respectif; un moyen de dégivrage et de refroidissement (20) permettant de monter un échangeur thermique auxiliaire (22) sur l'échangeur thermique extérieur, et de monter un échangeur thermique (21) sur un réservoir de stockage de source de chaleur gratuite (23), de sorte que l'échangeur thermique auxiliaire (22) et l'échangeur thermique (21) sont reliés à une pompe de circulation (25) reliée à une canalisation d'alimentation en milieu chauffant (24a) et à une canalisation de retour de milieu chauffant (24b), de manière à former un circuit fermé; et un moyen permettant d'améliorer les performances (30) placé au niveau de la canalisation d'alimentation en milieu chauffant (24a) et entre l'échangeur thermique extérieur (16) et le robinet à quatre voies (12) de la conduite (17) de fluide frigorigène .
PCT/KR2012/003749 2011-05-23 2012-05-14 Système de pompe à chaleur Ceased WO2012161446A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110048231A KR101258181B1 (ko) 2011-05-23 2011-05-23 히트 펌프 시스템
KR10-2011-0048231 2011-05-23

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WO2012161446A2 true WO2012161446A2 (fr) 2012-11-29
WO2012161446A3 WO2012161446A3 (fr) 2013-03-21

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PCT/KR2012/003749 Ceased WO2012161446A2 (fr) 2011-05-23 2012-05-14 Système de pompe à chaleur
PCT/KR2012/003820 Ceased WO2012161456A2 (fr) 2011-05-23 2012-05-16 Système de pompe à chaleur

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PCT/KR2012/003820 Ceased WO2012161456A2 (fr) 2011-05-23 2012-05-16 Système de pompe à chaleur

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WO (2) WO2012161446A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111426090A (zh) * 2020-03-24 2020-07-17 青岛海尔空调电子有限公司 控制装置、空调热泵系统及其控制方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796437A (en) * 1987-10-23 1989-01-10 James Larry S Multifluid heat pump system
JP3410583B2 (ja) * 1995-06-30 2003-05-26 東京瓦斯株式会社 エンジン廃熱回収型ガスエンジン駆動ヒートポンプにおける着霜防止装置
KR100389272B1 (ko) * 2001-03-17 2003-06-27 진금수 히트 펌프식 냉·난방장치
KR100970870B1 (ko) * 2008-08-26 2010-07-16 진금수 히트 펌프 시스템
KR101060512B1 (ko) * 2009-09-28 2011-08-30 진금수 냉·온수 생성장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111426090A (zh) * 2020-03-24 2020-07-17 青岛海尔空调电子有限公司 控制装置、空调热泵系统及其控制方法

Also Published As

Publication number Publication date
WO2012161446A3 (fr) 2013-03-21
KR20120130357A (ko) 2012-12-03
KR101258181B1 (ko) 2013-04-25
WO2012161456A2 (fr) 2012-11-29
WO2012161456A3 (fr) 2013-03-21

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