CN104848327A - Geothermal water combined water source heat pump heating circulation system - Google Patents
Geothermal water combined water source heat pump heating circulation system Download PDFInfo
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- CN104848327A CN104848327A CN201410601499.1A CN201410601499A CN104848327A CN 104848327 A CN104848327 A CN 104848327A CN 201410601499 A CN201410601499 A CN 201410601499A CN 104848327 A CN104848327 A CN 104848327A
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- 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
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Abstract
The invention discloses a geothermal water combined water source heat pump heating circulation system. The system mainly consists of a first plate heat exchanger, a second plate heat exchanger, a heat pump set, a heating circulation pump and a control cabinet, wherein a secondary inlet of the first plate heat exchanger is connected with a heating water return pipe; a secondary outlet of the first plate heat exchanger is connected with a heating water supply pipe; the heating water supply pipe and the heating water return pipe are respectively connected with heating users to form a circulation; the heating water return pipe is additionally provided with a heat pump water inlet pipe for connecting with a secondary inlet of the heat pump set; a secondary outlet of the heat pump set is provided with a heat pump water outlet pipe for connecting with the heating water supply pipe; and a primary inlet and a primary outlet of the heat pump set are respectively provided with a heat pump circulation pipe and a heat pump water return pipe for connecting with a secondary outlet and a secondary inlet of the second plate heat exchanger to form a circulation. The system has such advantages as high heat utilization rate, energy conservation, comfortable operation and low heating cost, and has the beneficial effects of prevention of environmental pollution, prominent social and economic benefits and good application prospect.
Description
Technical field
The present invention relates to GEOTHERMAL WATER technical field, specifically a kind of GEOTHERMAL WATER is in conjunction with the water source heat pump heating circulatory system.
Background technology
GEOTHERMAL WATER draws up the natural hot water come, can as a kind of clean energy resource in industry and civil area extensive use.Geothermal energy and oil, coal facies are than having the special benefits of saving fuel and not causing environmental pollution, and in the area of GEOTHERMAL WATER abundance, geothermal energy just gives effective exploitation and utilization as the alternative new forms of energy of one.At present, to geothermal energy utilization mainly in industry, bathing etc., and less in geothermal energy heating application, some utilizes geothermal energy to heat and mainly adopts in line direct-furnish mode, or heats after plate type heat exchanger heat exchange, be characterized in that system is simple, small investment, but Tail water reuse temperature is high, and water temperature is many at 30 DEG C ~ 40 DEG C, geothermal energy utilization rate is low, and heating scale is little.
Summary of the invention
The object of the present invention is to provide a kind of utilization rate is high, energy-conservation and result of use is good GEOTHERMAL WATER in conjunction with the water source heat pump heating circulatory system.
The technical solution adopted for the present invention to solve the technical problems is: GEOTHERMAL WATER in conjunction with the water source heat pump heating circulatory system primarily of geothermal well, first plate type heat exchanger, second plate type heat exchanger, source pump, moisturizing variable frequency pump, water supply tank, heating circulation pump and switch board composition, geothermal well is built with terrestrial heat pump, terrestrial heat pump water outlet is connected with water distribution pipeline, water distribution pipeline is connected with an import of the first plate type heat exchanger again, the once outlet of the first plate type heat exchanger is provided with serises connecting tube and is connected with an import of the second plate type heat exchanger, the once outlet of the second plate type heat exchanger with recharge water pipe and be connected, recharge water pipe to be connected with inverted well again, water distribution pipeline is equipped with desander, the secondary import of the first plate type heat exchanger is connected with heating water return pipe, the secondary outlet of the first plate type heat exchanger is connected with heating and supplying water pipe, heating and supplying water pipe and heating water return pipe are connected to form circulation with heating heat user more respectively, and on heating water return pipe, heating circulation pump is housed, heating water return pipe was equipped with filter before heating circulation pump, heating water return pipe after the filters, before heating circulation pump, safety valve is housed, and be provided with pressure sensor, heating water return pipe after the filters, also be provided with heating level pressure pipe before heating circulation pump to be connected with water supply tank, water supply tank water inlet is connected with running water filling pipe, and on running water filling pipe, moisturizing magnetic valve is housed, running water filling pipe is equipped with water softening device after moisturizing magnetic valve, also level sensor is equiped with in water supply tank, heating level pressure pipe is equipped with moisturizing variable frequency pump and check-valves, walk around moisturizing variable frequency pump and check-valves to be also provided with relief tube and to be connected with heating level pressure pipe and water supply tank respectively, and relief tube is connected to water supply tank top, walk around the first plate type heat exchanger to be also provided with mixed water pipe and to be connected with heating water return pipe and heating and supplying water pipe respectively, and one end of mixed water pipe be connected to heating circulation pump after heating water return pipe on, the other end of mixed water pipe is connected on heating and supplying water pipe, mixed water pipe is equipped with flow valve, heating and supplying water pipe is provided with temperature sensor after the mixed water pipe of connection, heating water return pipe is after heating circulation pump, also be provided with heat pump water inlet pipe before connecting mixed water pipe to be connected with the secondary import of source pump, be provided with heat pump outlet pipe in the secondary outlet of source pump to be connected with heating and supplying water pipe, and before heat pump outlet pipe is connected to temperature sensor, connect on the heating and supplying water pipe after mixed water pipe, the secondary that an import of source pump and once outlet are respectively equipped with heat pump cycle pipe and heat pump return pipe and the second plate type heat exchanger exports and secondary import is connected to form circulation, and on heat pump return pipe, heat pump cycle pump is housed, heat pump return pipe was also provided with heat pump filling pipe and is connected with heating level pressure pipe before heat pump cycle pump, and before heat pump filling pipe is connected to moisturizing variable frequency pump and check-valves, connect on the heating level pressure pipe after relief tube.Described heat pump cycle pump, source pump, moisturizing variable frequency pump, level sensor, moisturizing magnetic valve, water softening device, pressure release electromagnetic valve, temperature sensor, pressure sensor, heating circulation pump are connected with switch board wiring separately respectively with flow valve, switch board also be contained in the outdoor outdoor temperature sensor wiring for sensing chamber's external environment temperature and be connected.
Operation principle of the present invention is, terrestrial heat pump extracts GEOTHERMAL WATER in geothermal well, enter after desander carries out filtering and remove sediment contamination through pressure-raising, first the first plate type heat exchanger and heating recirculated water heat exchange and quantity of heat given up is entered, and then enter the second plate type heat exchanger by serises connecting tube and carry out heat exchange and UTILIZATION OF VESIDUAL HEAT IN as the low-temperature heat source of source pump, recharge to inverted well formation circulation by recharging water pipe subsequently, first plate type heat exchanger automatically provides heating temperature setting value to heating recirculated water indirect to being suitable for outdoor environment temperature change by GEOTHERMAL WATER, flow to heating heat user by heating and supplying water pipe again to heat, the flow valve heating temperature setting value that then foundation system provides automatically be contained on mixed water pipe regulates its aperture adaptively, until standard-sized sheet or closedown, and then regulate the heating temperature of heating and supplying water pipe, in heating temperature is maintained all the time heating temperature setting value that system provides, realize the alternating temperature of weather compensation and comfortable energy-saving heating effect, second plate type heat exchanger is then by source pump indirect heat exchange, heated by a part of flow of source pump to heating water return pipe again, heated by heat pump outlet pipe and heating and supplying water manifold collection again, to realize GEOTHERMAL WATER UTILIZATION OF VESIDUAL HEAT IN and energy-saving effect, the temperature sensor be contained on heating and supplying water pipe detects heating temperature, the pressure sensor be contained on heating water return pipe detects the pressure of heating water return pipe before heating circulation pump, and be provided with moisturizing and open pump pressure force value, moisturizing steady pressure value, super-pressure force value and water deprivation stress value four control points, when detecting that the pressure of heating water return pipe before heating circulation pump opens pump pressure force value lower than the moisturizing that pressure sensor sets, moisturizing variable frequency pump starts and fetches water in water supply tank, and according to the moisturizing steady pressure value of setting, frequency-changing pressure stabilizing moisturizing is carried out to heating water return pipe, when moisturizing variable frequency pump runs, and heating water return pipe pressure is stabilized in the moisturizing steady pressure value of setting, and when maintaining 30s ~ 60s, moisturizing variable frequency pump is shut down and is entered dormancy holding state, the moisturizing of moisturizing variable frequency pump terminates, when detect the pressure of heating water return pipe before heating circulation pump higher than setting moisturizing steady pressure value and reach setting super-pressure force value and above time, pressure release electromagnetic valve is opened sluicing to water supply tank and is stored, when the moisturizing steady pressure value that the pressure recover of heating water return pipe before heating circulation pump extremely sets, pressure release electromagnetic valve is closed, and relief tube cuts off, when detect the pressure of heating water return pipe before heating circulation pump lower than setting water deprivation stress value and following time, heating water return pipe lack of water will be judged, heating circulation pump stoppage protection, when the pressure recover of heating water return pipe before heating circulation pump is to the moisturizing steady pressure value of setting, heating circulation pump automatically starts and recovers normal condition, be contained in level sensor in water supply tank for detecting water supply tank water level, and be provided with high water level point, low water level point and lack of water water level point, when level sensor detect water supply tank water level be in setting low water level point and following time, moisturizing opened by the moisturizing magnetic valve be contained on running water filling pipe, water softening device obtains electric operation simultaneously, water supply tank moisturizing is entered to prepare demineralized water, water supply tank water level rises, when level sensor detect water supply tank water level be in setting high water level point and above time, moisturizing closed electromagnetic valve, water softening device dead electricity is shut down, when level sensor detect water supply tank water level be in setting lack of water water level point and following time, moisturizing variable frequency pump will be stopped to run, and report to the police, until water supply tank water level rezime and water level higher than setting low water level point more than time, report to the police and automatically eliminate, moisturizing variable frequency pump also will be automatically restored to normal condition.
The invention has the beneficial effects as follows, the present invention has the advantages such as heat utilization efficiency is high, energy saving in running is comfortable, heat cost is low, but also avoids environmental pollution, and thus its social economic effect is remarkable, and application prospect is good.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
In figure, 1, terrestrial heat pump, 2, geothermal well, 3, inverted well, 4, water distribution pipeline, 5, desander, 6, recharge water pipe, 7, first plate type heat exchanger, 8, serises connecting tube, 9, second plate type heat exchanger, 10, heat pump cycle pipe, 11, heat pump return pipe, 12, heat pump cycle pump, 13, heat pump filling pipe, 14, source pump, 15, check-valves, 16, moisturizing variable frequency pump, 17, level sensor, 18, water supply tank, 19, running water filling pipe, 20, moisturizing magnetic valve, 21, water softening device, 22, relief tube, 23, pressure release electromagnetic valve, 24, heating level pressure pipe, 25, heat pump water inlet pipe, 26, heat pump outlet pipe, 27, switch board, 28, heating water return pipe, 29, filter, 30, outdoor temperature sensor, 31, heating heat user, 32, heating and supplying water pipe, 33, temperature sensor, 34, safety valve, 35, pressure sensor, 36, heating circulation pump, 37, flow valve, 38, mixed water pipe.
Detailed description of the invention
With regard to accompanying drawing 1, GEOTHERMAL WATER of the present invention is described in detail below in conjunction with the water source heat pump heating circulatory system below.
As shown in Figure 1, GEOTHERMAL WATER of the present invention in conjunction with the water source heat pump heating circulatory system primarily of geothermal well 2, first plate type heat exchanger 7, second plate type heat exchanger 9, source pump 14, moisturizing variable frequency pump 16, water supply tank 18, heating circulation pump 36 and switch board 27 form, geothermal well 2 is built with terrestrial heat pump 1, terrestrial heat pump 1 water outlet is connected with water distribution pipeline 4, water distribution pipeline 4 is connected with an import of the first plate type heat exchanger 7 again, the once outlet of the first plate type heat exchanger 7 is provided with serises connecting tube 8 and is connected with an import of the second plate type heat exchanger 9, the once outlet of the second plate type heat exchanger 9 with recharge water pipe 6 and be connected, recharge water pipe 6 to be connected with inverted well 3 again, water distribution pipeline 4 is equipped with desander 5, the secondary import of the first plate type heat exchanger 7 is connected with heating water return pipe 28, the secondary outlet of the first plate type heat exchanger 7 is connected with heating and supplying water pipe 32, heating and supplying water pipe 32 and heating water return pipe 28 are connected to form circulation with heating heat user 31 more respectively, and on heating water return pipe 28, heating circulation pump 36 is housed, heating water return pipe 28 was equipped with filter 29 before heating circulation pump 36, heating water return pipe 28 is after filter 29, before heating circulation pump 36, safety valve 34 is housed, and be provided with pressure sensor 35, heating water return pipe 28 is after filter 29, also be provided with heating level pressure pipe 24 before heating circulation pump 36 to be connected with water supply tank 18, water supply tank 18 water inlet is connected with running water filling pipe 19, and on running water filling pipe 19, moisturizing magnetic valve 20 is housed, running water filling pipe 19 is equipped with water softening device 21 after moisturizing magnetic valve 20, level sensor 17 is also equiped with in water supply tank 18, heating level pressure pipe 24 is equipped with moisturizing variable frequency pump 16 and check-valves 15, walk around moisturizing variable frequency pump 16 and check-valves 15 to be also provided with relief tube 22 and to be connected with heating level pressure pipe 24 and water supply tank 18 respectively, and relief tube 22 is connected to water supply tank 18 top, walk around the first plate type heat exchanger 7 to be also provided with mixed water pipe 38 and to be connected with heating water return pipe 28 and heating and supplying water pipe 32 respectively, and one end of mixed water pipe 38 is connected on the heating water return pipe 28 after heating circulation pump 36, the other end of mixed water pipe 38 is connected on heating and supplying water pipe 32, mixed water pipe 38 is equipped with flow valve 37, heating and supplying water pipe 32 is provided with temperature sensor 33 after the mixed water pipe 38 of connection, heating water return pipe 28 is after heating circulation pump 36, also be provided with heat pump water inlet pipe 25 before connecting mixed water pipe 38 to be connected with the secondary import of source pump 14, be provided with heat pump outlet pipe 26 in the secondary outlet of source pump 14 to be connected with heating and supplying water pipe 32, and before heat pump outlet pipe 26 is connected to temperature sensor 33, connect on the heating and supplying water pipe 32 after mixed water pipe 38, the secondary that an import of source pump 14 and once outlet are respectively equipped with heat pump cycle pipe 10 and heat pump return pipe 11 and the second plate type heat exchanger 9 exports and secondary import is connected to form circulation, and on heat pump return pipe 11, heat pump cycle pump 12 is housed, heat pump return pipe 11 was also provided with heat pump filling pipe 13 and is connected with heating level pressure pipe 24 before heat pump cycle pump 12, and before heat pump filling pipe 13 is connected to moisturizing variable frequency pump 16 and check-valves 15, connect on the heating level pressure pipe 24 after relief tube 22.Described heat pump cycle pump 12, source pump 14, moisturizing variable frequency pump 16, level sensor 17, moisturizing magnetic valve 20, water softening device 21, pressure release electromagnetic valve 23, temperature sensor 33, pressure sensor 35, heating circulation pump 36 are connected with switch board 27 wiring separately respectively with flow valve 37, switch board 27 also be contained in outdoor outdoor temperature sensor 30 wiring for sensing chamber's external environment temperature and be connected.
Operation principle of the present invention is, terrestrial heat pump 1 extracts GEOTHERMAL WATER in geothermal well 2, enter after desander 5 carries out filtering and remove sediment contamination through pressure-raising, first the first plate type heat exchanger 7 and heating recirculated water heat exchange and quantity of heat given up is entered, and then enter the second plate type heat exchanger 9 by serises connecting tube and carry out heat exchange and UTILIZATION OF VESIDUAL HEAT IN as the low-temperature heat source of source pump 14, recharge to inverted well 3 formation circulation by recharging water pipe 6 subsequently, first plate type heat exchanger 7 automatically provides heating temperature setting value to heating recirculated water indirect to being suitable for outdoor environment temperature change by GEOTHERMAL WATER, flow to heating heat user 31 by heating and supplying water pipe 32 again to heat, the heating temperature setting value that the flow valve 37 foundation system on mixed water pipe 38 that is contained in provides automatically regulates its aperture adaptively, until standard-sized sheet or closedown, and then regulate the heating temperature of heating and supplying water pipe 32, in heating temperature is maintained all the time heating temperature setting value that system provides, realize the alternating temperature of weather compensation and comfortable energy-saving heating effect, second plate type heat exchanger 9 is by source pump 14 indirect heat exchange, heated by a part of flow of source pump 14 pairs of heating water return pipes 28 again, heating is collected again by heat pump outlet pipe 26 and heating and supplying water pipe 32, to realize GEOTHERMAL WATER UTILIZATION OF VESIDUAL HEAT IN and energy-saving effect, the temperature sensor 33 be contained on heating and supplying water pipe 32 detects heating temperature, the pressure sensor 35 be contained on heating water return pipe 28 detects the pressure of heating water return pipe 28 before heating circulation pump 36, and be provided with moisturizing and open pump pressure force value, moisturizing steady pressure value, super-pressure force value and water deprivation stress value four control points, when detecting that the pressure of heating water return pipe 28 before heating circulation pump 36 opens pump pressure force value lower than the moisturizing that pressure sensor 35 sets, moisturizing variable frequency pump 16 starts and fetches water in water supply tank 18, and according to the moisturizing steady pressure value of setting, frequency-changing pressure stabilizing moisturizing is carried out to heating water return pipe 28, when moisturizing variable frequency pump 16 runs, and heating water return pipe 28 pressure stability is in the moisturizing steady pressure value of setting, and when maintaining 30s ~ 60s, dormancy holding state is shut down and entered to moisturizing variable frequency pump 16, moisturizing variable frequency pump 16 moisturizing terminates, when detect the pressure of heating water return pipe 28 before heating circulation pump 36 higher than setting moisturizing steady pressure value and reach setting super-pressure force value and above time, pressure release electromagnetic valve 23 is opened sluicing to water supply tank 18 and is stored, when the moisturizing steady pressure value that the pressure recover of heating water return pipe 28 before heating circulation pump 36 extremely sets, pressure release electromagnetic valve 23 is closed, and relief tube 22 cuts off, when detect the pressure of heating water return pipe 28 before heating circulation pump 36 lower than setting water deprivation stress value and following time, heating water return pipe 28 lack of water will be judged, heating circulation pump 36 stoppage protection, when the pressure recover of heating water return pipe 28 before heating circulation pump 36 is to the moisturizing steady pressure value of setting, heating circulation pump 36 automatically starts and recovers normal condition, be contained in level sensor 17 in water supply tank 18 for detecting water supply tank 18 water level, and be provided with high water level point, low water level point and lack of water water level point, when level sensor 17 detect water supply tank 18 water level be in setting low water level point and following time, moisturizing opened by the moisturizing magnetic valve 20 be contained on running water filling pipe 19, water softening device 21 obtains electric operation simultaneously, water supply tank 18 moisturizing is entered to prepare demineralized water, water supply tank 18 water level rises, when level sensor 17 detect water supply tank 18 water level be in setting high water level point and above time, moisturizing magnetic valve 20 cuts out, water softening device 21 dead electricity is shut down, when level sensor 17 detect water supply tank 18 water level be in setting lack of water water level point and following time, stopping moisturizing variable frequency pump 16 is run, and report to the police, until water supply tank 18 water level rezime and water level higher than setting low water level point more than time, report to the police and automatically eliminate, moisturizing variable frequency pump 16 also will be automatically restored to normal condition.
Claims (4)
1. a GEOTHERMAL WATER in conjunction with the water source heat pump heating circulatory system primarily of geothermal well, first plate type heat exchanger, second plate type heat exchanger, source pump, moisturizing variable frequency pump, water supply tank, heating circulation pump and switch board composition, the terrestrial heat pump water outlet be contained in geothermal well is provided with water distribution pipeline and is connected with an import of the first plate type heat exchanger, water distribution pipeline is equipped with desander, it is characterized in that, the once outlet of the first plate type heat exchanger is provided with serises connecting tube and is connected with an import of the second plate type heat exchanger, the once outlet of the second plate type heat exchanger with recharge water pipe and be connected, the secondary import of the first plate type heat exchanger is connected with heating water return pipe, the secondary outlet of the first plate type heat exchanger is connected with heating and supplying water pipe, heating and supplying water pipe and heating water return pipe are connected to form circulation with heating heat user more respectively, walk around the first plate type heat exchanger to be also provided with mixed water pipe and to be connected with heating water return pipe and heating and supplying water pipe respectively, mixed water pipe is equipped with flow valve, heating and supplying water pipe is provided with temperature sensor after the mixed water pipe of connection, heating water return pipe is also provided with heat pump water inlet pipe and is connected with the secondary import of source pump, be provided with heat pump outlet pipe in the secondary outlet of source pump to be connected with heating and supplying water pipe, the secondary that an import of source pump and once outlet are respectively equipped with heat pump cycle pipe and heat pump return pipe and the second plate type heat exchanger exports and secondary import is connected to form circulation.
2. GEOTHERMAL WATER according to claim 1 is in conjunction with the water source heat pump heating circulatory system, it is characterized in that, heating water return pipe is equipped with heating circulation pump, heating water return pipe was equipped with filter before heating circulation pump, heating water return pipe after the filters, safety valve be housed before heating circulation pump and be provided with pressure sensor.
3. GEOTHERMAL WATER according to claim 2 is in conjunction with the water source heat pump heating circulatory system, it is characterized in that, heating water return pipe after the filters, also be provided with heating level pressure pipe before heating circulation pump to be connected with water supply tank, water supply tank water inlet is connected with running water filling pipe, and on running water filling pipe, moisturizing magnetic valve is housed, running water filling pipe is equipped with water softening device after moisturizing magnetic valve, also level sensor is equiped with in water supply tank, heating level pressure pipe is equipped with moisturizing variable frequency pump and check-valves, walk around moisturizing variable frequency pump and check-valves to be also provided with relief tube and to be connected with heating level pressure pipe and water supply tank respectively.
4. GEOTHERMAL WATER according to claim 1 is in conjunction with the water source heat pump heating circulatory system, it is characterized in that, heat pump return pipe is equipped with heat pump cycle pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410601499.1A CN104848327A (en) | 2014-11-02 | 2014-11-02 | Geothermal water combined water source heat pump heating circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410601499.1A CN104848327A (en) | 2014-11-02 | 2014-11-02 | Geothermal water combined water source heat pump heating circulation system |
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| CN104848327A true CN104848327A (en) | 2015-08-19 |
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| CN201410601499.1A Pending CN104848327A (en) | 2014-11-02 | 2014-11-02 | Geothermal water combined water source heat pump heating circulation system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928035A (en) * | 2016-04-29 | 2016-09-07 | 齐齐哈尔市洪博伟业供暖设备有限公司 | Indoor solar heating system |
| CN106382695A (en) * | 2016-08-30 | 2017-02-08 | 湖南中大经纬地热开发科技有限公司 | Air-conditioning system based on screw water source heat pump |
| CN109237586A (en) * | 2017-06-15 | 2019-01-18 | 东营明汇新能源科技有限公司 | Deep geothermal heat indirect heating system |
| WO2023029409A1 (en) * | 2021-08-31 | 2023-03-09 | 中国华能集团清洁能源技术研究院有限公司 | Modularized geothermal heat supply system and installation method |
-
2014
- 2014-11-02 CN CN201410601499.1A patent/CN104848327A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928035A (en) * | 2016-04-29 | 2016-09-07 | 齐齐哈尔市洪博伟业供暖设备有限公司 | Indoor solar heating system |
| CN106382695A (en) * | 2016-08-30 | 2017-02-08 | 湖南中大经纬地热开发科技有限公司 | Air-conditioning system based on screw water source heat pump |
| CN106382695B (en) * | 2016-08-30 | 2019-03-19 | 湖南中大经纬地热开发科技有限公司 | A kind of air-conditioning system based on screw rod water resource heat pump |
| CN109237586A (en) * | 2017-06-15 | 2019-01-18 | 东营明汇新能源科技有限公司 | Deep geothermal heat indirect heating system |
| WO2023029409A1 (en) * | 2021-08-31 | 2023-03-09 | 中国华能集团清洁能源技术研究院有限公司 | Modularized geothermal heat supply system and installation method |
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