CN1804488A - Air conditioning system utilizing underground cold and heat source - Google Patents
Air conditioning system utilizing underground cold and heat source Download PDFInfo
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- CN1804488A CN1804488A CNA2005100454096A CN200510045409A CN1804488A CN 1804488 A CN1804488 A CN 1804488A CN A2005100454096 A CNA2005100454096 A CN A2005100454096A CN 200510045409 A CN200510045409 A CN 200510045409A CN 1804488 A CN1804488 A CN 1804488A
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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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- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
The invention relates to an underground storage cold and hot air conditioning system, which is characterized in that: it builds a outdoor solar energy collector and a outdoor cold storage pool; the heat energy and cold energy adsorbed by the medium of pool are individually via the heat input device and cold input device transmitted into the underground heat accumulation pool and the cold accumulation pool; in the winter, the stored heat energy can via the heat exchanger and hot wind output device be fed into the room or via the hot water output device connecting the heat accumulation pool be to feed the hot water into the heating system; in the summer, the cold energy stored in the cold accumulation pool via the cold exchanger and cold wind output device can feed the cold wind into the room or feed the cold water into the heating system to reduce the temperature. The invention can fully utilize the temperature different between seasons and the change of solar energy to save energy, store energy, protect environment and realize sustainable development which especially apply the north area whose temperature different is big.
Description
Technical field: the invention belongs to energy storage and utilize the field, specifically about underground cold-storage, accumulation of heat air handling system.
Background technology: as everybody knows, the earth that the earth and sun's motion have caused us to live has the branch in the four seasons, and is cold in winter and hot in summer.Cold-peace heat all is the energy, and sunshine is the energy especially, and how the energy that these are inexhaustible is stored, and gets when needed and is mainspring of the present invention with it.We have expected undergroundly in this way, and let us is investigated the Changing Pattern of ground temperature, sees Table:
Subsurface temperature changes comparison sheet
| The degree of depth (rice) | Project | The Huma | Harbin | Beijing | Shanghai |
| 0 | One monthly mean temperature mean temperature in July temperature differs | -32.7 24.6 57.3 | -20.8 25.9 46.7 | -5.3 29.1 34.4 | 4.4 30.4 26 |
| 3.2 | One monthly mean temperature mean temperature in July temperature differs | 3.2 3.0 0.2 | 6.0 4.0 2.0 | 12.7 13.9 1.2 | 17.2 16.7 0.5 |
As can be seen from the table, surface temperature changes strong, but the subsurface temperature variation is small.Though surface temperature is cold in winter and hot in summer, and deep under ground is cool in summer and warm in winter.This natural phenomena explanation, underground when reaching certain depth, soil has good insulation, constant temperature, the characteristic of equilibrium energy, no longer the rapid variation with temperature changes.The present invention utilizes underground this characteristic that temperature and solar energy cold and hot energy input jumpy is underground just, causes cold-zone and hot-zone to be stored in underground part.The present invention has cold-storage and two kinds of functions of accumulation of heat, and existing division is as follows:
At first WATER AS FLOW MEDIUM (the freezing point material falls in adding) is put into and inhaled cold drop on the ground, when the water temperature in the suction cold drop is brought down below ground temperature, can imports underground cold accumulating pond and store.In the winter time, temperature is low more, and the area of inhaling cold drop is big more, the cold of inhaling the cold drop absorption is just many more, the cold energy of importing in the underground cold accumulating pond is just big more, and when the pondage of underground cold accumulating pond reached design flow, process of cool just can circulate by the water pump of cold loader control.At this moment, when as long as temperature is lower than underground cold accumulating pond water temperature, just the water in the cold accumulating pond is evacuated to and on the ground inhales cold drop and lower the temperature, when reducing to uniform temperature, import underground cold accumulating pond again, carry out so repeatedly, in the winter of cold of some months, just in the soil around the water neutralization pond of cold accumulating pond, stored a large amount of cold energy.At northern area, have subzero temperature when being enough to make water freezing in the priming reservoir, will add salt in the water or other falls the material (as antifreezing agent) of freezing point, ensure the circulation of WATER AS FLOW MEDIUM, can improve cold storage capacity to greatest extent simultaneously.Finish when winter, when temperature descend water temperature in the cold accumulating pond above Ground, stop cold loader and circulate.Cold accumulating pond enters the stand-by phase of storage cold.When the purpose of cold-storage is during for the indoor cooling in summer of building,, can realize by cool exchanger default in the cold accumulating pond and cold follower along with the arriving in summer.Cool exchanger is exactly the ventilation shaft that is immersed in the cold accumulating pond, and the water cooling pipeline wall in the cold accumulating pond, duct wall be the interior air of cooling pipe again, and cooled air is delivered to by the blower fan of cold follower needs the indoor of cooling.By the circulation of cool exchanger and cold follower, make the cold energy of storing in the cold accumulating pond like this by output utilization gradually.1 year winter interim, as to have entered second cold-storage season again circulation.This principle is equally applicable to the cold energy of electric refrigeration and stores.During the broiling summer, when the storage cold of underground cold accumulating pond is not enough to satisfy the summer cooling amount, can be by the electric refrigeration unit directly to the water refrigeration in the cold accumulating pond.Utilize the peak-valley difference in the power supply network, enter the trough electricity price at power supply network and begin refrigeration when cheap, the cold accumulating pond storage is cold, stops refrigeration when the power supply peak electricity tariff is high, and the cold accumulating pond cooling that does as usual reaches the purpose of energy-conservation reduction refrigeration cost equally.When cool-heat-exchanger adopts ventilation shaft, summer, the blower fan with cold follower supplied indoor cold wind, the winter of anti-season cold follower can be used as cold loader again and use, the air of outdoor cold is forced the input cool exchanger by it, WATER AS FLOW MEDIUM in the cold accumulating pond absorbs cold energy in a large number by the tube wall of cool exchanger, especially at special arctic weather or night in winter, the cold of importing cold accumulating pond with cold wind can be more direct higher with efficient.Cold follower also can adopt water pump that the cold water output of having held in the cold accumulating pond is used, when the radiator with water heating has been installed in the building, extract cold water in the cold accumulating pond out with water pump in summer, insert the water inlet of building water-heating system, feed each room heater sheet by plumbing pipe, be back to cold accumulating pond by return pipe again, can reach room temperature lowering by this circulation.
Accumulation of heat principle:, when the water temperature in temperature or the solar thermal collector is higher than the ground temperature of underground 2 meters depths, this area, just begin accumulation of heat in the somewhere.Cold-storage ground is the same with building, and builds the accumulation of heat pond in underground depths below 2 meters, and (as the roof) builds heat absorption pond or supporting with solar thermal collector on the ground, when the water temperature in the solar thermal collector rises to above accumulation of heat pond water temperature, can import the accumulation of heat of underground heat storage pond.Temperature is high more, sunshine is strong more, the heat energy that solar heat absorber absorbs is just many more, it is just big more to import underground heat energy, when the pondage in underground accumulation of heat pond reaches design flow, the accumulation of heat that circulates of water pump by the control of hot loader, at this moment, as long as the water temperature in the solar thermal collector is higher than accumulation of heat pond water temperature certain value (artificially setting) on hot loader, just with the input of the water in solar thermal collector underground heat storage pond, the Chi Shui of accumulation of heat simultaneously re-injects solar heat collector, so repeatedly circulation, in the day-light saving time of some months, in the water in accumulation of heat pond, just a large amount of heat energy can have been stored with surrounding soil.Arrive when winter,, can realize by heat exchanger and the thermal output device laid in the accumulation of heat pond if the purpose of accumulation of heat is during for the building indoor heating.Heat exchanger is exactly the ventilation shaft that is immersed in the accumulation of heat pond, and Chi Shui heats tube wall, and tube wall adds hot-air, and air is delivered to Heating Room by the blower fan of thermal output device.During the supporting use of this system and solar thermal collector, winter is fine gives to replenish to the heat in accumulation of heat pond as usual.This system can year-round provision hot water in this way.The thermal output device also can adopt water pump directly the output of the hot water in the accumulation of heat pond to be used, be equal to city hot-water heating heat supply when heating in the winter time, directly, flow into the accumulation of heat pond, realize the hot-water heating circulation from water return outlet with the feed water inlet of the hot water in the accumulation of heat pond with water pump input water-heating system.
Chinese patent CN1529103A and CN1057377C, though last patent has been utilized the cold of solar energy and atmosphere, it is to utilize cold well and hot well to come energy storage, digging a well is subjected to the restriction of level of ground water, has very strong region; Back one patent does not relate to the problem of atmosphere cold.
Summary of the invention: the objective of the invention is to utilize the soil of the following 2 meters depths of geodetic ground or rock constant temperature, insulation, thermal capacity big, the characteristics that the space is unlimited, build underground cold accumulating pond and underground heat storage pond respectively, import underground cold accumulating pond again after to be medium with water to low-temperature receiver on the ground and thermal source absorbed and the accumulation of heat pond is stored, low-temperature receiver is mainly the temperature of cold in winter, thermal source is mainly the high temperature of sweltering heat in summer and the heat energy that solar thermal collector transforms, to store when needed hot and cold can be again by cold, heat exchanger is imported indoor use.
Technical scheme of the present invention is to realize like this, on the vacant lot around the building or building beneath apart from ground below 2 meters, build enclosed cold accumulating pond and accumulation of heat pond respectively, the pool wall in cold accumulating pond and accumulation of heat pond forms with the armored concrete cast, two ponds are not less than two meters at a distance of minimum, closely contact with underground or rock around the outer wall in pond, be full of the WATER AS FLOW MEDIUM of adding antifreezing agent in the cold accumulating pond, accumulation of heat is full of running water in the pond; Building open pond on the vacant lot around the building or on the roof at building as inhaling cold drop, charge into the WATER AS FLOW MEDIUM of having added antifreezing agent in the pond, solar thermal collector also is on the vacant lot of building in around the building or on the roof, with running water as heat exchange medium.
The water inlet pipe of solar thermal collector and outlet pipe connect with hot loader, and hot loader is connected with the accumulation of heat pond by two pipelines; Accumulation of heat is established heat exchanger in the pond, two ports of heat exchanger are connected with the hot blast follower by pipeline, a stop valve is installed respectively on the wind pipe of hot blast follower and the intake stack, be connected with discharge pipe with the blast pipe of rooms of buildings by pipeline then, stop valve is in opening in the time of need sending hot blast, closes stop valve when stopping to send hot blast; Equally, water inlet pipe and the outlet pipe of inhaling cold drop connect with cold loader, and the other end of cold loader is connected with cold accumulating pond by two pipelines, establishes cool exchanger in the cold accumulating pond, and two ports of cool exchanger link to each other with the cold wind follower by pipeline; The cold wind follower is provided with two pipelines and communicates with the room of building, and these in two pipelines are blast pipes, and another root is a discharge pipe, makes room air keep circulation; And a triple valve is installed respectively on two pipelines, need to indoor when sending cold wind triple valve be opening to indoor inlet and outlet piping, triple valve is closed when stopping to send cold wind, when triple valve communicates with atmosphere in the winter time, the cold wind follower changes the cold wind loader into, the cold air in winter is input in the cool exchanger, promotes the cold accumulating pond cooling.Also be provided with hot-water circulation pipe and cool water circulating pipe on accumulation of heat pond and cold accumulating pond, the pipeline by the band stop valve is connected with indoor warm, air-cooling system, carries out water and circulates and heat or the water circularly cooling.
Described cold loader, hot loader, hot water follower and cold water follower are respectively to be made of a water pump and temperature control system, and described cold wind follower and hot blast follower are respectively to be made of a blower fan and temperature control system.
Description of drawings: Fig. 1, underground cold-storage, hot-air regulating system schematic diagram
Among the figure: 1-solar thermal collector (heat absorption pond) 2-inhales the hot loader 4-of cold drop 3-cold loader 5-building 7-hot water follower 8-cold water follower 9-hot blast follower 10-cold wind follower 11-12-cold accumulating pond 13-heat exchanger 14-cool exchanger 15-building hot and cold wind input port, accumulation of heat pond, 6-ground and refluxing opening 16-building hot water or cold water input port and refluxing opening 17-stop valve 18-triple valve
Embodiment: in Jinan Area, the gentle water temperature in the ground below 3 meters is about 14.5 ℃ of constant temperature, and summer, the highest temperature can reach 42 ℃, and winter minimum temperature can reach-19 ℃, and 1000 square metres of office buildings are carried out air conditioning, and the design of underground energy-accumulation is as follows:
The design of summer cooling cold storage capacity:
40 kilocalories/square metre. hour * 8 hours/day * 100 days * 1000 square metres=3,200 ten thousand kilocalories (cold)
With the water in the cold accumulating pond and around 1.5 meters thick soil on average to store cold be 1 kilocalorie/kilogram, the water and the surrounding soil that fall the freezing point material with adding were balanced to 0 ℃ in the cold-storage circulation in whole winter, when the highest leaving air temp of cold follower control in summer is 20 ℃, the temperature difference is 20 ℃, and the accumulation of heat volume (containing surrounding soil) that needs is:
3,200 ten thousand kilocalorie ÷, 20,000 kilocalorie/cubic meter=1600 cubic metre
Sectional area with the cold accumulating pond of building underground 3.5 meters depths in is that calculate 3 meters (wide) * 3 meter (deeply).The sectional area that comprises soil thermal storage should be 6 meters * 6 meters=36 square metres, needs the length of cold accumulating pond to be: 36 square metres=44.4 meters of 1600 cubic metres of ÷, actual length of building cold accumulating pond is 44.4 meters, and is wide 3 meters, dark 3 meters.Volume is 399.6 cubic metres, uses reinforced concrete cast-in-situ.This volume is the consumption of circulatory mediator water just.
Inhale the calculating of cold drop area: with each cycling use of water is 1/10 of total measurement (volume), inhales 0.25 meter of the cold drop depth of water, and needing to inhale huyashi-chuuka (cold chinese-style noodles) long-pending is 0.25 meter=160 square metres of 40 cubic metres of ÷, and the suction cold drop of this area can be built directly in the roof of building.
Cold accumulating pond is built the following 3.5 meters depths of constructure ground in, is the U font, the cool exchanger steel pipe of 0.5 meter of diameter, be laid on the bottom, pond of U font cold accumulating pond, two ends are by the straight-through interior of building of soil, and an end is an air inlet, one end is an air outlet, introduces each cooling room by the blower fan forced ventilation.
The design of heat supply in winter amount of stored heat:
50 kilocalories/square metre. hour * 8 hours/day * 100 days * 1000 square metres=4,000 ten thousand kilocalories (heat)
Heat energy source is supporting by solar thermal collector because solar thermal collector winter can also heat supply, 100 days the heating phase solar thermal collector supply in the winter time of establishing 1/4 heat, 3/4 heat be summer by the collection of solar thermal collector and be stored in the accumulation of heat pond.Amount of stored heat can satisfy the heating requirement of this office building when reaching 3,000 ten thousand kilocalories, if water and surrounding soil in the whole accumulation of heat circulation in summer in the accumulation of heat pond are balanced to 60 ℃, the heating outlet temperature is minimum 22 ℃, 38 ℃ of the temperature difference, be every cubic metre of accumulation of energy 3.8 ten thousand kilocalories, need accumulation of heat pool volume (containing 1.5m soil on every side) to be:
3,000 ten thousand kilocalorie ÷, 3.8 ten thousand kilocalorie/cubic meter=790 cubic metre, the construction in accumulation of heat pond is same as cold accumulating pond, and the length in accumulation of heat pond is so:
36 square metres=22 meters of 790 cubic metres of ÷
Actual length of building the accumulation of heat pond is 22 meters, and wide 3 meters, dark 3 meters, volume is 198 cubic metres.
In 100 days of heating, the heat that also needs solar thermal collector to make 100,000 kilocalories average every day is replenished in the winter time.Be to need 100,000 kilocalorie ÷, 3.8 ten thousand kilocalorie/ton=2.6 ton every day, 60 ℃ hot water, if average every square metre of solar thermal collector is for 35 kilograms of 60 ℃ of hot water, the area of solar thermal collector is 0.035 ton/square metre=74 square metres of 2.6 tons of ÷, and these 74 square metres of solar thermal collectors are directly installed on the roof of building.
Underground cold-storage of the present invention, hot-air regulating system have realized the storage of the low-temperature receiver of cold in winter, are able to cooling when summer high temperature.Equally also realized the storage of the thermal source and the heat energy that solar thermal collector transforms of sweltering heat in summer, when the winter of cold, heated.The present invention has made full use of the difference characteristic and the sun transformation of energy of the Nature changes of seasons and temperature ground temperature.Make the supply of natural energy source balance, accomplished the requirement of energy storage, energy-saving and environmental protection, natural, sustainable development, be particularly useful for the bigger area of northern China temperature Change, have application value widely.
Claims (5)
1, underground cold-storage, hot-air regulating system is characterized in that: below 2 meters, build enclosed accumulation of heat pond (11) and cold accumulating pond (12) apart from ground respectively on the vacant lot around the building; Solar thermal collector (1) is set on the top of building (5) and inhales cold drop (2), solar thermal collector (1) and suction cold drop (2) have two pipelines to be communicated with accumulation of heat pond (11) and cold accumulating pond (12) by hot loader (3) and cold loader (4) respectively, establish heat exchanger (13) in the accumulation of heat pond (11), two ports of heat exchanger (13) link to each other with hot blast follower (9) by pipeline, the pipeline of band stop valve (17) linked to each other with refluxing opening (15) with the hot and cold wind of building input port in the middle of hot blast follower (9) was provided with two, made room air keep circulation; Accumulation of heat pond (11) also is provided with inlet tube and outlet tube and is connected with hot water follower (7), and hot water follower (7) links to each other with refluxing opening (16) with building hot water or cold water input port by two pipelines that have stop valve (17), and water circulation heating is provided; Establish cool exchanger (14) in the cold accumulating pond (12), two ports of cool exchanger (14) link to each other with cold wind follower (10) by pipeline, cold wind follower (10) links to each other with refluxing opening (15) with the hot and cold wind of building input port by two pipelines that have triple valve (18), also be provided with inlet tube and outlet tube in the cold accumulating pond (12) and be connected with cold water follower (8), cold water follower (8) links to each other with refluxing opening (16) with building hot water or cold water input port by two pipelines that have stop valve (17).
2, underground cold-storage according to claim 1, hot-air regulating system, it is characterized in that: described hot loader (3), cold loader (4), hot water follower (7) and cold water follower (8) are respectively to be made of a water pump and temperature control system, and described hot blast follower (9) and cold wind follower (10) are respectively to be made of a blower fan and temperature control system.
3, underground cold-storage according to claim 1, hot-air regulating system is characterized in that: described solar thermal collector (1) and suction cold drop (2) are that building is on building (5) vacant lot on every side.
4, underground cold-storage according to claim 1, hot-air regulating system is characterized in that: described accumulation of heat pond (11) and cold accumulating pond (12) are building beneath apart from the place of ground below 2 meters at building (5).
5, underground cold-storage according to claim 1, hot-air regulating system, it is characterized in that: described cold wind follower (10) triple valve in the winter time communicates with atmosphere, the cold wind follower changes the cold wind loader into, and the cold air in winter is input in the cool exchanger, promotes the cold accumulating pond cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100454096A CN1804488A (en) | 2005-12-05 | 2005-12-05 | Air conditioning system utilizing underground cold and heat source |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2005100454096A CN1804488A (en) | 2005-12-05 | 2005-12-05 | Air conditioning system utilizing underground cold and heat source |
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| CN1804488A true CN1804488A (en) | 2006-07-19 |
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| CNA2005100454096A Pending CN1804488A (en) | 2005-12-05 | 2005-12-05 | Air conditioning system utilizing underground cold and heat source |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436978C (en) * | 2006-12-31 | 2008-11-26 | 北京佩尔优科技有限公司 | Water energy-storage system with multi flume tanks and using method thereof |
| CN1847744B (en) * | 2006-04-18 | 2011-01-19 | 康健 | Out-of-season solar energy utilizing technology for heat accumulation to warm and cold accumulation to cool |
| WO2011050527A1 (en) * | 2009-10-29 | 2011-05-05 | 李欣韵 | Air conditioning inlet and outlet structure using earth temperature |
| CN102494437A (en) * | 2011-11-25 | 2012-06-13 | 武汉凯迪控股投资有限公司 | Cross-season energy-storage cold and heat supplying system |
| CN103423798A (en) * | 2012-05-23 | 2013-12-04 | 新疆太阳能科技开发公司 | Underground heat reservoir special for solar heating system for geological trans-seasonal heat accumulation |
| CN103528146A (en) * | 2013-08-26 | 2014-01-22 | 国网吉林省电力有限公司辽源供电公司 | Method and system for storing cold energy in winter to achieve purpose of using winter cold energy in summer to relieve situation of power shortage in summer |
| CN104393587A (en) * | 2014-11-19 | 2015-03-04 | 张洪亮 | Combined cooling, heating and power energy station utilizing renewable energy sources |
| CN105020825A (en) * | 2015-08-19 | 2015-11-04 | 魏厚建 | Constant-temperature temperature-adjusting system for underground finite space |
| CN108088009A (en) * | 2017-12-15 | 2018-05-29 | 中国地质大学（北京） | A kind of energy saving underground heat supply-refrigeration system of zero carbon |
| CN113710076A (en) * | 2021-09-23 | 2021-11-26 | 特变电工西安柔性输配电有限公司 | Flexible direct current transmission converter valve cooling system |
| CN117870037A (en) * | 2024-01-24 | 2024-04-12 | 山东博瑞宇能源设备有限公司 | Cooling and heating energy-saving system |
-
2005
- 2005-12-05 CN CNA2005100454096A patent/CN1804488A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847744B (en) * | 2006-04-18 | 2011-01-19 | 康健 | Out-of-season solar energy utilizing technology for heat accumulation to warm and cold accumulation to cool |
| CN100436978C (en) * | 2006-12-31 | 2008-11-26 | 北京佩尔优科技有限公司 | Water energy-storage system with multi flume tanks and using method thereof |
| WO2011050527A1 (en) * | 2009-10-29 | 2011-05-05 | 李欣韵 | Air conditioning inlet and outlet structure using earth temperature |
| CN102494437A (en) * | 2011-11-25 | 2012-06-13 | 武汉凯迪控股投资有限公司 | Cross-season energy-storage cold and heat supplying system |
| EP2784412B1 (en) * | 2011-11-25 | 2019-03-20 | Sunshine Kaidi New Energy Group Co., Ltd | Seasonal energy-storage cooling and heating system |
| CN103423798A (en) * | 2012-05-23 | 2013-12-04 | 新疆太阳能科技开发公司 | Underground heat reservoir special for solar heating system for geological trans-seasonal heat accumulation |
| CN103528146B (en) * | 2013-08-26 | 2016-01-06 | 国网吉林省电力有限公司辽源供电公司 | Store the method and system that cold energy winter in winter cold summer grade alleviates power tense in summer |
| CN103528146A (en) * | 2013-08-26 | 2014-01-22 | 国网吉林省电力有限公司辽源供电公司 | Method and system for storing cold energy in winter to achieve purpose of using winter cold energy in summer to relieve situation of power shortage in summer |
| CN104393587A (en) * | 2014-11-19 | 2015-03-04 | 张洪亮 | Combined cooling, heating and power energy station utilizing renewable energy sources |
| CN105020825A (en) * | 2015-08-19 | 2015-11-04 | 魏厚建 | Constant-temperature temperature-adjusting system for underground finite space |
| CN108088009A (en) * | 2017-12-15 | 2018-05-29 | 中国地质大学（北京） | A kind of energy saving underground heat supply-refrigeration system of zero carbon |
| CN108088009B (en) * | 2017-12-15 | 2020-04-17 | 中国地质大学（北京） | Zero-carbon energy-saving underground heat supply-refrigeration system |
| CN113710076A (en) * | 2021-09-23 | 2021-11-26 | 特变电工西安柔性输配电有限公司 | Flexible direct current transmission converter valve cooling system |
| CN117870037A (en) * | 2024-01-24 | 2024-04-12 | 山东博瑞宇能源设备有限公司 | Cooling and heating energy-saving system |
| CN117870037B (en) * | 2024-01-24 | 2024-08-13 | 山东博瑞宇能源设备有限公司 | Cooling and heating energy-saving system |
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Open date: 20060719 |