WO2004020916A1 - Dispositif d'extraction de la chaleur terrestre par le vide et systeme de climatisation pourvu de ce dispositif - Google Patents

Dispositif d'extraction de la chaleur terrestre par le vide et systeme de climatisation pourvu de ce dispositif Download PDF

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Publication number
WO2004020916A1
WO2004020916A1 PCT/CN2002/000808 CN0200808W WO2004020916A1 WO 2004020916 A1 WO2004020916 A1 WO 2004020916A1 CN 0200808 W CN0200808 W CN 0200808W WO 2004020916 A1 WO2004020916 A1 WO 2004020916A1
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WO
WIPO (PCT)
Prior art keywords
water
hot water
valve
vacuum
pipe
Prior art date
Application number
PCT/CN2002/000808
Other languages
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
Priority claimed from CNB02129027XA external-priority patent/CN1302247C/zh
Priority claimed from CN 02145932 external-priority patent/CN1195185C/zh
Application filed by Shengheng Xu filed Critical Shengheng Xu
Priority to AU2002349423A priority Critical patent/AU2002349423A1/en
Publication of WO2004020916A1 publication Critical patent/WO2004020916A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/40—Geothermal heat-pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/10—Geothermal energy

Definitions

  • Vacuum geothermal extraction device and air conditioning system having the same
  • the invention relates to a heat exchange device in which the heat exchange medium does not directly contact.
  • coal, natural gas, oil, and solar energy are used as their energy sources, but among these energy sources, coal, natural gas, and oil have limited resources, and after they are burned, they will produce a large amount of ash and exhaust gas, which will not only pollute the environment, but also Changing the nature of the atmosphere causes the greenhouse effect; and the use of solar energy will be affected by the weather, which has certain limitations.
  • a large number of low-temperature cold and heat sources are stored in the earth, rivers, lakes, and seas. People have also tried to develop and utilize these energy sources. For example, related technologies for the development of these energy sources are described in a series of applications related to the present invention.
  • the applicant's 00123489. 7 "energy accumulator" invention patent is a device for collecting underground thermal energy.
  • the device has the advantages of simple structure, safety and reliability, and long service life, it has a large floor area. Low thermal efficiency.
  • the present invention provides a vacuum geothermal extraction device.
  • the device does not cause any waste of natural resources (such as groundwater), has a small footprint, has a simple structure, a long service life, is easy to install and operate, has low energy consumption, and is suitable for urban and rural use.
  • the present invention provides a vacuum-type geothermal extraction device.
  • the device includes a closed container including a vacuum chamber provided on an inner upper part thereof and a heat exchanger provided below the vacuum chamber and in communication therewith. Chamber, a plurality of holes are opened in the side wall of the heat exchanger chamber, and a heat exchanger filled with liquid is provided in the heat exchanger chamber, and both ends of the heat exchanger extend through the top of the vacuum chamber Out, the vacuum chamber communicates with the vacuum pump and the suction valve through the pipeline.
  • a settling chamber communicating with the heat exchanger chamber is provided below the heat exchanger chamber.
  • the vacuum pump is a water ring vacuum pump.
  • the suction valve is a two-position solenoid valve.
  • the heat exchanger is a coil-type heat exchanger.
  • the present invention also provides the above-mentioned air-conditioning system capable of supplying hot water with the above-mentioned geothermal extraction device, including the geothermal extraction device connected through a pipeline, an outlet pump, and connected by an evaporator, a compressor, a condenser, and an expansion valve.
  • An energy booster and an air conditioner composed of a completed heating circuit and a heat exchange circuit, a first bypass line consisting of a first two-position four-way valve, and A second bypass line formed by a second two-position four-way valve, wherein a second pipe connection on the water side of the heat exchange circuit coupled to the condenser is connected to a first port of the first two-position four-way valve, and a first The pipe interface is connected to the first interface of the second two-position four-way valve.
  • the liquid inlet pipe of the air conditioner is connected to the second interface of the first two-position four-way valve through a pump.
  • the fourth interface of the on-way valve is connected; the second interface of the liquid outlet pipe of the heat exchange circuit coupled to the evaporator is connected to the third interface of the first two-position four-way valve, and the first interface of the liquid inlet pipe is connected to The third interface of the second two-position four-way valve is connected, The return end of the geothermal extraction device is connected to the fourth interface of the first two-position four-way valve, and the water supply end of the geothermal extraction device is connected to the second interface of the second two-position four-way valve through the liquid discharge pump, and is coupled to the condenser
  • the first pipe connection of the water-side pipeline of the heat exchange circuit and the first connection of the second two-position four-way valve are connected in order between a pipe connection of the first water line of the hot water tank and a fourth valve.
  • a third valve is provided in the pipeline, and the other pipe interface of the first water pipeline is connected to one end of the hot water container.
  • the second pipe interface and the first two, four positions of the water side pipeline coupled to the condenser are connected to the condenser.
  • One port of the second water line of the hot water container and the second valve are sequentially connected between the first port of the on-off valve.
  • a water pump and a first valve are provided, and the other tube of the second water line is provided.
  • the interface is connected to the other end of the hot water tank.
  • the first water line is provided with a water supply pipe connected to a hot water user
  • the second water line is provided with a water supply pipe connected to tap water.
  • the container is provided with an overflow valve.
  • a hot water container is provided with a tap water supply line and a hot water circulation line.
  • the hot water circulation line includes a connection to a hot water user.
  • the water supply main pipe and the return water main pipe are provided with a water pump, a check valve or a valve in the water supply main pipe or the return water main pipe.
  • a heating coil is provided in the hot water container, one port of the heating coil is connected to the outlet end of the compressor, and the other port of the heating coil The inlet end of the refrigerant line connected to the condenser.
  • a first shut-off valve connecting the two ports is installed between the two ports of the heating coil, and on a pipeline connected to the outlet end of the compressor A second shut-off valve is provided.
  • the vacuum geothermal extraction device of the present invention has the advantages that it can make full use of groundwater as a heat exchange medium and collect natural resources such as low-temperature cold and heat energy existing in the ground, while not causing any waste to groundwater, and has a small footprint, and the device Simple structure, long service life, easy to manufacture, easy to install and operate, low energy consumption, suitable for urban and rural use.
  • a low-temperature water (about 15 ° C) in a geothermal extraction device is sent to a heat exchange circuit coupled with an evaporator by a water pump, and the refrigerant in the evaporator is heated. Evaporates into a gas, which is compressed by a compressor to form a high temperature and high pressure gas. This high-temperature and high-pressure gas releases the potential to the water side of the heat exchange circuit coupled to it through the condenser, and the water on the water side is heated by the heat. .
  • the fan coil unit that is, the air conditioner, is connected to the evaporator through the hydraulic switching of the valve group, so as to absorb the heat in the air and reduce the indoor temperature, thereby achieving the purpose of cooling.
  • the pipeline between the compressor and the condenser communicates with the heating pipe in the hot water container, or the water-side pipeline of the heat exchange circuit coupled with the condenser communicates heat.
  • Water inlet and outlet pipes of water containers By controlling the opening or closing of the valve or valve group, the line supplying heat to the hot water tank is changed. Therefore, the present invention can provide an air-conditioning system for hot water, which can be used in homes or large units, such as restaurants, in the seasons when the air conditioners are operating, when the required cooling or heating is required, and during the spring and autumn seasons when the air conditioners are not required. Offices, hospitals, apartments or homes provide plenty of hot water that meets the requirements. BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a schematic structural diagram of a vacuum geothermal extraction device according to the present invention.
  • FIG. 2 is a schematic diagram of a preferred embodiment of an air-conditioning system capable of supplying hot water using the vacuum geothermal extraction device shown in FIG. 1 according to the present invention, which shows an air-conditioning system capable of supplying hot water to household users;
  • FIG. 3 is a schematic diagram of another preferred embodiment of the air-conditioning system capable of providing hot water according to the present invention, which shows an air-conditioning system capable of supplying hot water to large-scale users.
  • the vacuum-type geothermal extraction device 1 of the present invention includes a closed container 120.
  • the closed container 120 includes a vacuum chamber 130 provided at an upper portion thereof, and a heat exchanger chamber 140 provided below the vacuum chamber 130 and communicated with the vacuum chamber 130. Except that only a plurality of holes 141 are opened on the side wall of the heat exchanger chamber 140, the rest of the closed container 120 is closed from the outside, that is, the closed container 120 is realized only through the holes 141 provided in the heat exchanger chamber 140. Exchange with external groundwater.
  • the heat exchanger chamber 140 is provided with a coil heat exchanger 150 which is filled with a liquid heat exchange medium inside.
  • the two ends 151 and 152 of the coil heat exchanger 150 extend out of the top of the vacuum chamber 130 and pass through the pump 2. (See Figure 2) is connected to a heat exchange circuit 60 (see Figure 2) of the energy booster.
  • the vacuum chamber 130 is connected to a vacuum pump (usually a water ring vacuum pump) 170 and an air suction valve (usually a two-position solenoid valve) 115 through a line 160, so as to adjust the vacuum chamber 130 through the vacuum pump 170 and the air suction valve 115, respectively. Pressure inside.
  • the vacuum-type geothermal extraction device 1 When the vacuum-type geothermal extraction device 1 is buried in the ground through a wellhead drilled on the ground, the bottom of the vacuum chamber 130 is made flush with the groundwater level B, so that the top of the vacuum chamber 130 is higher than the groundwater level B for work. Extraction and discharge of groundwater is achieved through the vacuum chamber 130.
  • a sand chamber 190 communicating with the heat exchanger chamber 140 may be provided below the heat exchanger chamber 140 in the vacuum geothermal extraction device 1 so that when groundwater is repeatedly entered and exited from the heat exchanger chamber 140 in order to achieve heat exchange
  • the sediment chamber can enable the sediment carried in the groundwater to be deposited into the sediment chamber 190.
  • the size of the sand chamber 190 can be set according to the actual situation. '
  • the vacuum pump 170 When the vacuum pump 170 is started and the suction valve 115 is closed, as the pressure in the vacuum chamber 130 gradually decreases, the water level in the vacuum chamber 130 will gradually increase accordingly, for example, from the B water level to the A water level in FIG. 1 ( As shown by a single arrow in the vacuum chamber 130 in FIG. 1); at the same time, the groundwater outside the vacuum geothermal extraction device 1 continuously enters the heat exchanger chamber 140 through the hole 141 on the side wall of the heat exchanger chamber 140. Conversely, when the vacuum pump 170 is closed and the suction valve 115 is opened, the pressure in the vacuum chamber 130 gradually increases, and the water level in the vacuum chamber 130 gradually decreases, for example, from the A water level in FIG. 1 to the B water level (as shown in FIG. 1). (Indicated by double arrows in the middle vacuum chamber 130). At the same time, the water in the vacuum geothermal extraction device 1 It is discharged through the hole 141 on the side wall of the heat exchanger chamber 140.
  • FIG. 2 there is depicted an air-conditioning system capable of supplying hot water having the geothermal extraction device shown in FIG. 1, which includes a geothermal extraction device 1 connected to a pipeline, an outlet pump 2, an evaporator 14, and a compressor. 11.
  • the condenser 12 and the expansion valve 13 are connected to an energy booster 10 and an air conditioner 16 composed of a heating circuit and a heat exchange circuit.
  • a first bypass line 81 composed of a first two-position four-way valve 8 and a second bypass line 91 composed of a second two-position four-way valve 9 are provided between the geothermal extraction device 1 and the air conditioner 16
  • the water-side second pipe interface 32 of the heat exchange circuit 30 coupled with the condenser 12 is connected to the first interface 8a of the first two-position four-way valve 8, and the first pipe interface 31 thereof is connected to the second two-position four-way valve.
  • the first interface 9a of 9 is connected.
  • the liquid inlet pipe of the air conditioner 16 is connected to the second interface 8b of the first two-position four-way valve 8 through the pump 17.
  • the liquid return pipe of the air conditioner 16 is connected to the fourth port 9d of the second two-position four-way valve 9.
  • the second outlet 62 of the liquid outlet pipe of the heat exchange circuit 60 coupled with the evaporator 14 is connected to the third interface 8c of the first two-position four-way valve 8, and the first inlet 61 of the liquid inlet pipe is connected to the second The third connection 9c of the two-position four-way valve 9 is connected.
  • the return end of the geothermal extraction device 1 is connected to the fourth interface 8d of the first two-position four-way valve 8, and its water supply end is connected to the second interface 9b of the second two-position four-way valve 9 through the liquid discharge pump 2.
  • the first water line 34 of the hot water tank 20 is connected in sequence between the first pipe connection 31 of the heat exchanger water-side pipe 30 coupled to the condenser 12 and the first two-way four-way valve 9 of the second connection 9a.
  • a pipe connection 33 and a fourth valve 24 In the first water line 34, a third valve 23 is provided.
  • the other pipe connection 37 of the first water line 34 is connected to one end of the hot water container 20.
  • the second pipe connection 32 of the water-side pipe 30 coupled to the condenser 12 and the first A connection port 38 of the second water line 36 and the second valve 22 of the hot water container 20 are connected in sequence between the interfaces 8a.
  • a water pump 27 and a first valve 21 The other pipe connection 39 is connected to the other end of the hot water container 20.
  • the first water line 34 is provided with a water supply pipe 41 connected to a hot water user 50.
  • the second water line 36 is provided with a water supply pipe 42 connected to tap water.
  • the hot water tank 20 is provided with an overflow valve 43.
  • the hot water produced in this example is usually Suitable for home users.
  • the home user is characterized in that the distance from the water outlet of the hot water user to the hot water container 20 is relatively close. In this embodiment, when the hot water user opens the valve at the water outlet, the hot water in the hot water container 20 enters the water supply pipe 41 through the first water line 34, and the hot water user can easily obtain hot water that meets the requirements.
  • a heating coil 28 is provided in the hot water container 20, and a port 25 of the heating coil 28 is connected to the compressor 11 through a pipeline.
  • the other end 26 of the heating coil 28 is connected to the inlet end of the refrigerant pipe of the condenser 12 through a pipeline.
  • a first shutoff valve 29 connecting the two ports 25 and 26 is installed.
  • a second stop valve 35 is provided on a pipeline connected to the outlet end of the compressor 11.
  • the outlet of the compressor 11 is directly connected to the inlet of the condenser 12, and the high-temperature and high-pressure gas from the compressor 11 directly enters the condenser 12. At this time, the high-temperature and high-pressure gas discharged from the compressor 11 does not pass through the heating coil 28, and therefore, the heating coil 28 does not provide heat to the hot water tank 20.
  • the first shut-off valve 29 is closed and the second shut-off valve 35 is opened, the high-temperature and high-pressure gas from the outlet of the compressor 11 passes through the heating coil 28 and enters the condenser 12. The heating coil 28 supplies heat to the hot water container 20 at this time.
  • a hot water tank 20 is provided with a tap water supply line 46 and a hot water circulation line 40.
  • the hot water circulation line 40 includes a water supply main pipe 44 and a return water main pipe 45 connected to the hot water user 50.
  • a water pump 48 and a check valve 47 are provided in the water main 44.
  • a valve 49 is provided in the return water main 45.
  • the state shown in the figure shows the heating of the air conditioner 16 for winter, in which the two-position four-way valves 8, 9 are in the working position shown in the figure, that is, where the coating is used.
  • the two black triangles indicate closed flow
  • the two blank triangles indicate open flow.
  • the air conditioner 16 and the heat exchange circuit 30 coupled to the condenser 12 are connected, and the absorption condenser 12 emits
  • the two-way four-way valves 8, 9 are reversed, that is, the blackened flow path is opened, and the blank flow path is closed, so that the air conditioner 16 and the evaporator 14 are coupled.
  • the heat exchange circuit 60 is connected, and the low-temperature liquid in it is used to cool the living room.
  • the above working process has been described in detail in Chinese Utility Model Patent No. 01223582. No. 2 Vertical Geothermal Energy Storage Air Conditioning System. In order to avoid trouble, this article will not repeat them here.
  • the preferred embodiment of the air-conditioning system capable of supplying hot water shown in FIG. 3 is suitable for supplying to large users.
  • Hot water in which the feed water main pipe 44, the hot water container 20, and the return water main pipe 45 constitute a hot water circulation circuit, and the hot water in the hot water container 20 is continuously flowed in the circulation circuit by the water pump 48.
  • the water pump 48 keeps the hot water in the The circuit keeps circulating, so hot water users can easily obtain hot water that meets the requirements in a relatively short period of time, and the water temperature is below 60 ° C.
  • the heating coil 28 in the hot water container 20 may be used to heat the hot water
  • the water in the container 20 is opened with the second valve 22 and the fourth valve 24, the first valve 21 and the third wide door 23 are closed, and the water pump 27 is stopped.
  • the air conditioner 16 is normally operated to perform the cooling operation.
  • the water in the hot water tank 20 is cut off by the first wide door 21 and the third valve 23, and is not connected to the water supply side of the condenser 12.
  • the high-temperature and high-pressure gas generated during the operation of the compressor 11 is caused to pass through the heating coil 28 in the hot water container 20 and then enter the condenser 12. At this time, the water in the hot water tank 20 obtains heat through the heating coil 28, thereby increasing the temperature of the water in the hot water tank 20. If the amount of hot water required is large and the temperature is high, the first valve 21 and the third valve 23 can be opened and the water pump 27 can be opened, so that the hot water container 20 communicates with the heat exchange circuit 30 and the heat generated by the condenser 12 is used. The heat heat heats the water in the hot water tank 20.
  • the heating coil 28 in the hot water container 20 can be used to heat the water in the hot water container 20, but also the first water line 34, the hot water container 20, the second water line 36 and The loop formed on the water supply side of the heat exchange circuit 30 coupled with the condenser 12 heats the water in the hot water tank 20.
  • the water heated on the water supply side of the heat exchange circuit 30 coupled to the condenser 12 is pumped by the water pump 27 through the first
  • the second water line 36 enters the hot water container 20 and then returns from the first water line 34 to the water supply side of the condenser 12. Thereby, the water in the hot water container 20 is heated cyclically.
  • the second valve 22 and the fourth valve 24 are closed, and the first valve 21 and the third valve 23 are opened, so that the energy booster 10 operates normally. Since the second valve 22 and the fourth valve 24 cut off the connection between the water in the water supply side of the heat exchange circuit 30 coupled to the condenser 12 and the air conditioner 16, the air conditioner 16 no longer performs cooling or heating operations. At this time, the water heated in the heat exchange circuit 30 coupled with the condenser 12 is driven by the water pump 27 into the hot water container 20 through the first valve 21. Water in hot water tank 20 Through the third valve 23 in the pipeline 34, the water supply side of the heat exchange circuit 30 coupled to the condenser 12 is returned, thereby circulatingly heating the water in the hot water container 20.
  • the method for heating hot water by using the embodiment shown in FIG. 3 is the same as the method for heating hot water in FIG. 2. In order to avoid cumbersomeness, details are not described herein again. Industrial applicability
  • the vacuum geothermal extraction device and the air-conditioning system having the device are used for collecting low-temperature cold and heat energy existing in the ground, and after being upgraded by an energy booster, the device is used for heating or cooling the room, and provides domestic hot water.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Energy (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

Cette invention se rapporte à un dispositif d'extraction de la chaleur terrestre par le vide et à un système de climatisation pourvu de ce dispositif, lequel comprend un récipient fermé, dont la partie supérieure est constituée par une chambre sous vide et dont la partie inférieure est constituée par une chambre d'échange thermique. Plusieurs trous sont ménagés sur le côté de la chambre d'échange thermique. Un échangeur de chaleur est placé dans la chambre d'échange thermique, dont les deux extrémités partent du dessus de la chambre sous vide, laquelle est raccordée à une pompe à vide et à une vanne d'aspiration, respectivement. Un système de climatisation utilisant ce dispositif pour produire de l'eau chaude comprend un extracteur d'énergie et un climatiseur, l'extracteur d'énergie étant constitué par un circuit de chauffage et par un circuit d'échange de chaleur. Le circuit de chauffage est constitué par un évaporateur, un compresseur, un condenseur et une vanne d'expansion raccordée par des conduits, et le tuyau côté eau du circuit d'échange thermique couplé au condenseur est raccordé à un récipient d'eau chaude par un conduit. Ce dispositif d'extraction de la chaleur terrestre par le vide possède les caractéristiques suivantes: une surface d'occupation réduite, une structure simple, une efficacité d'échange thermique élevée, une longue durée de vie, une installation et une exploitation aisées et une consommation d'énergie réduite. Ce dispositif permet de recueillir à la fois l'énergie froide et chaude d'un sous-sol de stockage d'énergie de faible qualité, et l'énergie froide ou chaude ainsi extraite par l'extracteur d'énergie peut alimenter des habitations et servir à produire de l'eau chaude sanitaire.
PCT/CN2002/000808 2002-08-27 2002-11-13 Dispositif d'extraction de la chaleur terrestre par le vide et systeme de climatisation pourvu de ce dispositif WO2004020916A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002349423A AU2002349423A1 (en) 2002-08-27 2002-11-13 A vacuum terrestrial heat-extracting device and an air-conditioning system with the device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN02129027.X 2002-08-27
CNB02129027XA CN1302247C (zh) 2002-08-27 2002-08-27 真空井孔式地热提取装置
CN 02145932 CN1195185C (zh) 2002-10-25 2002-10-25 一种能提供热水的地热空调系统
CN02145932.0 2002-10-25

Publications (1)

Publication Number Publication Date
WO2004020916A1 true WO2004020916A1 (fr) 2004-03-11

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WO (1) WO2004020916A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112696726A (zh) * 2020-12-25 2021-04-23 宁波奥克斯电气股份有限公司 两联供系统的控制方法、装置及两联供系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57150743A (en) * 1981-03-12 1982-09-17 Adachi Jimusho:Kk Cooling and heating device with terrestrial heat
JPS60178253A (ja) * 1984-02-23 1985-09-12 Matsushita Electric Works Ltd 土壌熱利用熱交換器
JPS62223568A (ja) * 1986-03-25 1987-10-01 Tetsuo Tanabe 井戸装置
CN2413234Y (zh) * 2000-03-02 2001-01-03 李其华 一种地热交换装置
JP2002235957A (ja) * 2001-02-09 2002-08-23 Kubota Corp 地すべり危険地における対地熱交換設備

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57150743A (en) * 1981-03-12 1982-09-17 Adachi Jimusho:Kk Cooling and heating device with terrestrial heat
JPS60178253A (ja) * 1984-02-23 1985-09-12 Matsushita Electric Works Ltd 土壌熱利用熱交換器
JPS62223568A (ja) * 1986-03-25 1987-10-01 Tetsuo Tanabe 井戸装置
CN2413234Y (zh) * 2000-03-02 2001-01-03 李其华 一种地热交换装置
JP2002235957A (ja) * 2001-02-09 2002-08-23 Kubota Corp 地すべり危険地における対地熱交換設備

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112696726A (zh) * 2020-12-25 2021-04-23 宁波奥克斯电气股份有限公司 两联供系统的控制方法、装置及两联供系统
CN112696726B (zh) * 2020-12-25 2022-06-28 宁波奥克斯电气股份有限公司 两联供系统的控制方法、装置及两联供系统

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