WO2006045228A1 - Systeme de pompe thermique utilisant de l'eau en tant que source d'energie - Google Patents

Systeme de pompe thermique utilisant de l'eau en tant que source d'energie Download PDF

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Publication number
WO2006045228A1
WO2006045228A1 PCT/CN2004/001271 CN2004001271W WO2006045228A1 WO 2006045228 A1 WO2006045228 A1 WO 2006045228A1 CN 2004001271 W CN2004001271 W CN 2004001271W WO 2006045228 A1 WO2006045228 A1 WO 2006045228A1
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WO
WIPO (PCT)
Prior art keywords
energy
heat exchange
coil
heat
exchange device
Prior art date
Application number
PCT/CN2004/001271
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English (en)
Chinese (zh)
Inventor
Shengheng Xu
Original Assignee
Shengheng Xu
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shengheng Xu filed Critical Shengheng Xu
Publication of WO2006045228A1 publication Critical patent/WO2006045228A1/fr

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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
    • F25B30/00—Heat pumps
    • F25B30/06—Heat pumps characterised by the source of low potential heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0067—Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/22—Cleaning ducts or apparatus
    • 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

Definitions

  • the invention relates to a heat pump system for extracting water energy, in particular to a heat pump system for extracting energy of rivers, lakes and seas or groundwater, which is to convert low-grade heat energy into high-grade heat energy by heat pump to achieve winter heating, summer cooling and daily supply of domestic hot water. the goal of. Background technique
  • the liquid cold heat source system using the river water of the rivers and lakes as the energy source of the Chinese invention patent number ZL00123491.9 which the applicant applied for earlier, provides a kind of use of sea water, river water or river water as energy, pollution-free, and land occupation. Small, and can provide a hot and cold source system for domestic hot water.
  • the system often causes the evaporator of the heat pump to freeze due to the low temperature of the river water in the river, or the evaporator freezes due to power outage or water stop, which makes the system unable to work normally, thus making the system not widely available and widely used.
  • an object of the present invention is to provide a heat pump system for extracting water energy, which can safely and effectively utilize heat in rivers, lakes or seawater to achieve winter heating and summer cooling.
  • the present invention provides a hot food system for extracting water energy, comprising: a water energy collecting device, an energy lifting device and a heat sink which are sequentially connected in series, the water energy collecting device comprising The submersible pump, the low energy side heat exchange coil and the heat collecting well in the heat collecting well are sequentially connected in series, and the energy lifting device comprises: a circuit consisting of an evaporator, a compressor, a condenser and an expansion valve in series.
  • the heat sink includes: a circuit consisting of an energy input coil, a circulation pump and a plurality of fins in series, wherein a first heat exchange device is disposed between the energy lifting device and the heat sink, the first exchange
  • the heat device comprises: a circuit consisting of a high-potential side heat exchange coil, an outlet pump and an energy output coil connected in series, the condenser and the high-potential side heat exchange coil being coupled, the energy of the radiator
  • the input coil is coupled to the energy output coil of the first heat exchange device, and a second heat exchange is provided between the energy boosting device and the water energy harvesting device
  • the second heat exchange device comprises: a circuit consisting of a quantity input coil, an energy output coil and a liquid return pump in series, wherein the energy input coil of the second heat exchange device exchanges heat with the low energy side The coil is coupled, the energy output coil of the second heat exchange device is coupled to the evaporator, and the liquid flowing in the first heat exchange device and the second heat exchange circuit is antifreeze, the
  • the heat pump system for extracting water energy further comprises: a first two-position four-way reversing valve and a second two-position four-way reversing valve, wherein the first two-position four-way reversing valve
  • the first interface of the reversing valve is connected to the liquid outlet end of the energy input coil of the second heat exchange device, and the second interface of the first two-position four-way reversing valve is exchanged with the high energy side of the first heat exchange device
  • the liquid inlet end of the hot coil is connected, and the third interface of the first two-position four-way reversing valve is connected with the IB liquid end of the energy output coil of the first heat exchange device, and the fourth one of the first two-position four-way reversing valve
  • the interface is connected to the liquid inlet end of the energy output coil of the second heat exchange device; the first interface of the second two-position four-way reversing valve is connected to the liquid outlet end of the liquid return pump of
  • the heat pump system for extracting water energy of the present invention wherein the first compressor and the second compressor are adjustable speed compressors.
  • a heating pipe of the water heater is connected between the first and second compressors and the condenser.
  • the heat pump system for extracting water energy wherein the low energy side heat exchange coil of the water energy harvesting device and the energy input coil of the second heat exchange device coupled thereto are made into a plate heat exchanger, the The energy transfer tti coil of the two heat exchange device and the evaporator coupled thereto are made into a needle welded plate heat exchanger, and the condenser and the high energy side heat exchange coil of the first heat exchange device coupled thereto are made A brazed plate heat exchanger, the energy output coil of the first heat exchange device and the energy input coil of the radiator coupled thereto are made into a plate heat exchanger.
  • the heat pump system for extracting water energy wherein the water is water or groundwater of rivers and lakes.
  • the heat provided by the energy booster decreases with the evaporator temperature, the heat is reduced, and the load for winter supply and summer cooling also varies with temperature. The change in temperature is just the same as the energy provided by the heat pump.
  • two compressors are connected in parallel, and one compressor is used when the weather is not cold in winter, two compressors are used when the weather is cold, and a variable speed compressor is used.
  • the heat provided by the energy boosting device is increased or decreased, so that the most reasonable use of the source.
  • the liquid flowing in the first and second heat exchange devices of the present invention is an antifreeze liquid, freezing does not occur, thereby ensuring that the helium system can also operate normally under low temperature conditions.
  • the invention controls the high energy side heat exchange plate of the first heat exchange device coupled with the condenser and the coupled heat exchanger, the energy output coil of the first heat exchange device and the heat sink coupled thereto
  • the energy input coil is made into a detachable plate heat exchanger, and the liquid flowing in the closed circuit of the first heat exchange device is antifreeze; the energy output control of the evaporator and the second heat exchange device coupled thereto becomes brazing
  • the plate heat exchanger, the energy input coil of the second heat exchange device and the low energy side heat exchange coil of the water energy collecting device coupled thereto are made into a detachable plate heat exchanger, and the second heat exchange device closed circuit
  • the liquid flowing in the liquid is also antifreeze.
  • the present invention allows the refrigerant flowing inside the two brazed plate heat exchangers to flow the antifreeze on the outside, thus fully utilizing the advantages of the brazed plate heat exchanger while avoiding Shortcomings, both improved heat transfer efficiency and increased brazing plate type
  • the service life of the heat exchanger does not cause freezing, clogging and scaling, thus ensuring the operation of the hot spring system for extracting water energy.
  • Two two-position four-way reversing valves are arranged on the heat pump system for extracting water energy, and heating or cooling is performed by changing the position of the four-position four-way reversing valve.
  • FIG. 1 is a schematic view of a heat pump system for extracting water energy according to the present invention.
  • the "water” used in the heat pump system for extracting water energy shown in Fig. 1 refers to the water of the rivers and lakes or the water obtained by excavating the underground.
  • the system comprises: a water energy collecting device 4 in series, and an energy lifting device 1
  • the water energy collecting device 4 comprises: a circuit comprising a submersible pump 23 installed in the heat collecting well 20, a low energy side replacement coil 5 and a collecting well 20 in series
  • the energy lifting device 1 comprises: A circuit consisting of an evaporator 18, a compressor, a condenser 19 and an expansion valve 15 in series
  • the radiator 3 comprises: a circuit consisting of an energy input coil 6, a circulating spring 9 and a plurality of fins 21 in series, in energy
  • a first heat exchange device 2 is disposed between the lifting device 1 and the radiator 3.
  • the first heat exchange device 2 includes: a high-position side heat exchange coil 16, an outlet pump 8, and an energy output coil 17 connected in series.
  • a circuit, between the energy lifting device 1 and the water energy collecting device 4, a second heat exchange device 22 is provided.
  • the second heat exchange device 22 comprises: an energy input coil 24, an energy output coil 25 and a liquid return pump 7 in sequence.
  • the circuits formed in series, the liquid flowing in the circuits of the first heat exchange device 2 and the second heat exchange device 22 are antifreeze, and the energy lifting device 1 comprises: a first compressor 11 and a second compressor 12 which are adjustable in speed, Parallel in the circuit of the energy boosting device 1, in the two compressors 11, 12 with the cold?
  • the heating pipe 10 of the water heater is connected in series between the suspects 19 to provide hot water for daily life.
  • the heat pump system for extracting water energy further comprises: a first two-position four-way reversing valve 13 and a second two-position four-way reversing valve 14 to achieve winter heating and summer cooling by changing the position of the four-position four-way reversing valve.
  • the first interface 13a of the first two-position four-way switching valve 13 is connected to the liquid outlet end of the energy input coil 24 of the second heat exchange device 22, and the second interface 13b of the first two-position four-way switching valve 13 is
  • the first heat exchange device 2 is connected to the liquid inlet end of the high energy side heat exchange coil 16 , and the third interface 13 c of the first two-position four-way reversing pottery 13 and the liquid output coil 17 of the first heat exchange device 2 are discharged.
  • the fourth interface 13d of the first two-position four-way reversing valve 13 is connected to the liquid inlet end of the energy output coil 25 of the second heat exchange device 22; the first of the second two-position four-way reversing valve 14
  • the interface 14a is connected to the liquid outlet end of the liquid return pump 7 of the second heat exchange device 22, the second interface 14b of the second two-position four-way switching valve 14 and the liquid inlet end of the energy output coil 17 of the first heat exchange device 2.
  • the third interface 14c of the second two-position four-way reversing valve 14 is connected with the liquid outlet end of the first heat exchange device 2 outlet pump 8, the second two The fourth port 14d of the four-way reversing valve 14 is connected to the liquid inlet end of the energy input coil 24 of the second heat exchange device 22.
  • the low energy side heat exchange coil 5 of the water energy harvesting device 4 and the energy input coil 24 of the second heat exchange device 22 coupled thereto are formed into a plate heat exchanger, and the energy output coil 25 of the second heat exchange device 22
  • the evaporator 18 of the energy lifting device 1 coupled therewith is formed as a brazed plate heat exchanger, the condenser 19 of the energy lifting device 1 and the high energy side heat exchange coil 16 of the first heat exchange device 2 coupled thereto A brazed plate heat exchanger is formed, and the energy output coil 17 of the first heat exchange device 2 and the energy input coil 6 of the heat sink 3 coupled thereto are formed into a plate heat exchanger.
  • Figure 1 is a schematic illustration of a heat pump system for extracting water energy.
  • the spool positions of the first two-position four-way selector valve 13 and the second two-position four-way selector valve 14 are as shown, SP: perpendicular to the pipe connected thereto, at this time,
  • the first interface a of the two-position four-way switching valve 13 and the second two-position four-way switching valve 14 are respectively connected with the fourth interface d of the same, and the second interface b respectively corresponds to them
  • the third interface c is connected.
  • the submersible pump 23 is activated, and the submersible pump 23 extracts the water in the heat collecting well 20 into the low energy side heat exchange coil 5 to release heat. After releasing the heat, the cooled water enters the heat collecting well 20 to absorb the heat of the water in the heat collecting well 20, and then Continue to pass the submersible pump into the low energy side heat exchange coil 5 to release heat.
  • the liquid return pump 7 is activated, and the liquid return pump 7 extracts the antifreeze liquid of the energy output coil 25 of the second ripening device 22, and the antifreeze passes through the first interface 14a and the fourth interface of the second two-position four-way switching valve 14.
  • the working fluid in the evaporator 18 of the energy lifting device 1 absorbs the energy flowing through the energy output coil 25 of the second heat exchange device 22 to evaporate into a gas, and the gas is compressed and heated by the first compressor 11 and/or the second compressor 12. (Depending on the outside temperature, it is decided to start a compressor or start two compressors. Generally speaking, when the outside temperature is not too low, only one compressor needs to be started. When the outside temperature is very low, two compressors must be started at the same time.) And heating the domestic hot water through the heater 10 of the water heater for people to wash.
  • the heat is released by the condenser 19 to the high-energy side heat exchange coil 16 of the first heat exchange device 2, and the condensed liquid working medium is decompressed by the expansion valve 15, and then enters the evaporator 18 again. Endothermic... so repeated cycles.
  • the temperature-increasing antifreeze is exchanged by the liquid discharge pump 8 through the second two-position four-way reversal.
  • the third interface 14c of the wide 14 and the second interface 14b are sent to the energy output coil 17 of the first heat exchange device 2 to release heat.
  • the cooled antifreeze liquid flows into the high-position side heat exchange coil 16 of the first heat exchange device 2 through the third interface 13c and the second interface 13b of the first two-position four-way switching valve 13 to absorb heat, so that the cycle is repeated.
  • the heat is supplied to the heat exchanger 3 of the heat sink 3 coupled to the energy output coil 17 of the first heat exchanger 2, and the heat is continuously supplied to the heat sink 21 (ie, the user) by the circulation pump 9. To achieve the purpose of heating.
  • the diving spring 23 is started, and the submersible pump 23 extracts the water in the collecting well 20 into the low-side heat exchange coil 5 to release the cooling amount.
  • the cooling water after the cooling amount enters the collecting well 20 and absorbs the cooling capacity of the collecting well 20. Then, continue to pass the submersible pump into the low-cost side heat exchange coil 5 to release the cooling capacity.
  • the energy input coil 24 of the second heat exchange device 22 absorbs the cold amount of the low energy side heat exchange coil 5, and the antifreeze passes through the first interface 13a of the first two-position four-way valve 13 and functions as the discharge pump 8.
  • the warmed antifreeze liquid returns to the third interface 14c and the fourth interface 14d of the second two-position four-way valve 14
  • the energy of the second heat exchange 22 is input into the coil 24
  • the output coil 25 of the second heat exchange unit 22 In contrast to the winter heating, under the action of the energy lifting device 1, the output coil 25 of the second heat exchange unit 22 generates low-level energy, and the liquid return pump 7 outputs the energy of the second heat exchange unit 22 to the tray 25.
  • the cooled antifreeze liquid enters the energy output coil 17 of the first heat exchange device 2 through the first interface 14a and the second interface 14b of the second two-position four-way valve 14 to release cold energy to the energy input coil of the radiator 3. 6.
  • the third interface 13c and the fourth interface 13d of the first two-position four-way valve 13 enter the second heat exchange device 22.
  • the energy output coil 25 absorbs cold energy, and the energy of the radiator 3 into the coil 6 is coupled with the energy output coil 17 of the first heat exchange device 2, and the heat sink 3 is output from the energy output coil of the first heat exchange device 2.
  • the cold energy is continuously obtained in 17 and is supplied to the heat sink 21 (i.e., the user) by the circulation pump 9. This is repeated to achieve the purpose of cooling.
  • an AL compressor or two compressors can be appropriately selected to work with one compressor when the weather is not too hot in summer, and two pressure washers when the weather is hot, and With a variable speed compressor, the amount of cooling provided by the energy boosting device is increased or decreased by increasing or decreasing the speed of the compressor.
  • the energy lifting device 1 is a heat pump that changes the operating conditions to adapt to changes in outside temperature. It can provide different heating or cooling temperatures as needed, and is flexible and versatile. Its two circuit compressors can be selected from the same compressor or different compression fL, and the optimal configuration can be selected according to different needs. Industrial applicability.
  • the heat pump system for extracting water energy of the invention can directly collect energy of rivers, rivers, lakes, seas or groundwaters, and is not subject to environmental conditions, and supplies heating to residents, enterprises and institutions in winter, and supplies heat in summer, daily supply of domestic hot water .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

L'invention concerne un système de pompe thermique utilisant de l'eau en tant que source d'énergie. Ce système comprend un dispositif de collecte d'énergie, un second échangeur thermique, un dispositif d'exaltation d'énergie, un premier échangeur thermique et un radiateur relié en série. Le dispositif de collecte d'énergie comprend un circuit d'une bobine d'échangeur thermique bas grade, un puits à drains rayonnants et une pompe d'immersion à l'intérieur du puits en série. Le dispositif d'exaltation d'énergie comprend un circuit d'une évaporation, deux compresseurs, un condensateur et une soupape d'expansion en série, les deux compresseurs étant connectés en parallèle. Le radiateur comprend un circuit de bobine d'émission d'énergie, une pompe et plusieurs ailettes de rayonnement en série. Dans le premier et le second échangeur thermique se trouve un antigel. Le système possède une structure simple, facile à installer et à entretenir, et peut normalement fournir de la chaleur ou du froid à des utilisateurs, dans n'importe quel cas.
PCT/CN2004/001271 2004-10-26 2004-11-08 Systeme de pompe thermique utilisant de l'eau en tant que source d'energie WO2006045228A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200410086366.1 2004-10-26
CNB2004100863661A CN1320325C (zh) 2004-10-26 2004-10-26 提取水能量的热泵系统

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WO2006045228A1 true WO2006045228A1 (fr) 2006-05-04

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CN (1) CN1320325C (fr)
WO (1) WO2006045228A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103090467A (zh) * 2012-12-29 2013-05-08 连添达 无室外机的空调机及其工作方法
CN104006478A (zh) * 2014-06-12 2014-08-27 天津大学 一种新型地源热泵系统与应用
CN104501463A (zh) * 2014-12-18 2015-04-08 河南润恒节能技术开发有限公司 水源热泵中央空调水源井内外一体焊接式同井回灌装置

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CN100458314C (zh) * 2007-07-06 2009-02-04 姜玉贵 低温位热能回收利用方法

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103090467A (zh) * 2012-12-29 2013-05-08 连添达 无室外机的空调机及其工作方法
CN103090467B (zh) * 2012-12-29 2015-04-22 连添达 无室外机的空调机及其工作方法
CN104006478A (zh) * 2014-06-12 2014-08-27 天津大学 一种新型地源热泵系统与应用
CN104501463A (zh) * 2014-12-18 2015-04-08 河南润恒节能技术开发有限公司 水源热泵中央空调水源井内外一体焊接式同井回灌装置

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CN1769816A (zh) 2006-05-10

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