CN202371823U - Energy-saving and dual-temperature air-conditioning system for solar energy, natural cold energy and low-ebb electric coupling - Google Patents

Energy-saving and dual-temperature air-conditioning system for solar energy, natural cold energy and low-ebb electric coupling Download PDF

Info

Publication number
CN202371823U
CN202371823U CN2011205026480U CN201120502648U CN202371823U CN 202371823 U CN202371823 U CN 202371823U CN 2011205026480 U CN2011205026480 U CN 2011205026480U CN 201120502648 U CN201120502648 U CN 201120502648U CN 202371823 U CN202371823 U CN 202371823U
Authority
CN
China
Prior art keywords
energy
air
phase
heat exchanger
heat
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN2011205026480U
Other languages
Chinese (zh)
Inventor
章学来
王为
李晓菲
李志伟
刘小微
韩中
吴云云
杨阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Maritime University
Original Assignee
Shanghai Maritime University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Maritime University filed Critical Shanghai Maritime University
Priority to CN2011205026480U priority Critical patent/CN202371823U/en
Application granted granted Critical
Publication of CN202371823U publication Critical patent/CN202371823U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30Systems combining energy storage with energy generation of non-fossil origin

Landscapes

  • Other Air-Conditioning Systems (AREA)

Abstract

The utility model discloses an energy-saving and dual-temperature air-conditioning system for solar energy, natural cold energy and low-ebb electric coupling, namely an air-conditioning system for storing energy by utilizing the solar energy, the natural cold energy and the low-ebb electricity. According to the technical key point, a phase change energy storage device is additionally arranged on the basis of the conventional air-conditioning structure, so that cold accumulation can be performed by a natural cold source in summer, and heat accumulation can be performed by the solar energy in winter. By the energy-saving and dual-temperature air-conditioning system, indoor heat environment can be cooled by the natural cold source and a heat pump unit in summer, heat can be supplied by the solar energy and the heat pump unit in winter, so that novel clean renewable energy is utilized to a maximum degree, and the power consumption of an air conditioner is reduced.

Description

Energy-conservation two warm air-conditioning systems of a kind of solar energy, natural cold-energy and low ebb electric coupling
Technical field
The utility model relates to a kind of energy-saving air conditioning system, energy-conservation two warm air-conditioning systems of particularly a kind of solar energy, natural cold-energy and low ebb electric coupling.
Background technology
Along with the raising of development of economic construction and living standards of the people, the also increase day by day of requirement to indoor environment temperature brings the application of air-conditioning system extensive day by day thus.For realizing that production process needs technological air conditioning, commercial building (office building, hotel, big-and-middle-sized market etc.) needs business air conditioner in the commercial production, and individual family then needs domestic air conditioning; Air-conditioning system has become the energy consumption rich and influential family, and its energy input increases just year by year.
With the commercial building is example, and air conditioning energy consumption is the major part of building energy consumption, accounts for the 50-60% of total energy consumption.By the statistics in Chongqing and Shanghai, the central air-conditioning power consumption accounts for 23% and 31.1% of whole city's total electricity consumption respectively, has brought heavy pressure for the confession distribution in each city.
The frequent appearance of extreme weather in recent years, unusual weather conditions manifest day by day, and air conditioning energy consumption must further increase, and is constantly testing State Grid's supply especially.And the non-renewable energy resources increasing demand is nervous, and imbalance between power supply and demand continues to strengthen, and how to improve energy utilization rate, utilizes novel clean reproducible energy to a greater extent, and it is significant to reduce air conditioning energy consumption.
The utility model content
The utility model technical problem to be solved is, makes full use of regenerative resource, and a kind of air-conditioning system of preferentially utilizing solar energy, natural cold-energy and low ebb electricity to carry out accumulation of energy is provided.
For the technical scheme that addresses the above problem the utility model is such:
Natural cold-energy is meant " in the normal temperature environment, the low temperature difference low temperature heat energy that exists naturally ".This energy is a kind of potential a large amount of low-grade energies.For example, can pass through day and night temperature summer, gathers natural cold-energy at night, is stored in the phase-change material, supplies cold energy by day, reduces unit load, plays the effect of energy-saving and emission-reduction.
Solar energy is the energy of solar interior nuclear fusion reaction process generation continuously.The sun shines tellurian energy and be equivalent to 5,000,000 tons of coals each second.
The utility model can preferentially use above-mentioned regenerative resource aspect the energy, the natural cold-energy that promptly summer, day and night temperature produced and winter solar can energy storage, secondly are the electric energy storage of low ebb of selecting country to vigorously advocate, adopts on ordinary days electricity price to carry out energy supplement at last.
Energy-conservation two warm air-conditioning systems of a kind of solar energy, natural cold-energy and low ebb electric coupling; Said air-conditioning system comprises source pump, first heat exchanger, second heat exchanger, solar heat-collection plate, blower fan, evaporative air cooler, phase-changing energy-storing device, temperature sensing device, signal pickup assembly and controller; Said source pump is connected with first heat exchanger; Said first heat exchanger is connected with second heat exchanger through pipeline; Be connected with solar heat-collection plate and blower fan on said second heat exchanger; Said second heat exchanger is connected with evaporative air cooler through pipeline, and said evaporative air cooler connects a phase-changing energy-storing device through pipeline, and said phase-changing energy-storing device connects user side through pipeline; The gateway of said phase-changing energy-storing device all is connected with temperature sensing device, and said temperature sensing device is connected with signal pickup assembly, and said signal pickup assembly is connected with controller;
Said phase-changing energy-storing device also is connected with first heat exchanger through pipeline, and said phase-changing energy-storing device is connected with second heat exchanger through pipeline.
Said pipeline is provided with the Electric air valve that control air flows to.
Said phase-changing energy-storing device is two temp phase-change energy-accumulating devices, comprises natural cold-energy cold-storage part and solar heat-preservation part.
Said natural cold-energy is the day and night temperature in summer.
The said pair of packing material that the temp phase-change energy-accumulating device is interior, by mass percentage, high temperature section is 93.5%CaCl 26H 2O+1.9%SrCl 26H 2O+4.6% sodium carboxymethylcellulose, low-temperature zone are 45% certain herbaceous plants with big flowers acid+55% laurate.
Beneficial effect; It is after taking all factors into consideration the characteristics of power save mode, to arise at the historic moment that the present invention utilizes energy-conservation two warm air-conditioning systems of solar energy, natural cold-energy and low ebb electric coupling; Compare with existing air-conditioning and structurally to have increased phase-changing energy-storing part (summer natural cooling source cold-storage part; Winter solar ability accumulation of heat part), realized that indoor thermal environment relies on natural cooling source and source pump cooling in summer, relies on solar energy and source pump heat supply winter; Transition season also can make full use of renewable energy solar energy and natural cooling source according to the form that require different choice natural cooling source cooling or solar-heating of individual to comfort level.
In addition, also can combine the tou power price policy of power system, utilize energy storage system in the lower period of the electricity charge, energy to be stored, the period big in the air-conditioning system demand, that the electricity charge are higher discharges this part energy, and natural energy resources is replenished.Owing to use natural energy resources, practice thrift operating cost in a large number, add the utilization of low ebb electricity, the operating cost of air-conditioning is declined to a great extent.
Not only can reduce the investment of new power plant construction; Improve the utilization rate of existing generating equipment and power transmission and transforming equipment; Can reduce simultaneously the environmental pollution that the energy uses (particularly for thermal power generation) to cause; Practicing thrift limited non-renewable resources, help the ecological balance, is a doulbe-sides' victory measure of benefiting the nation and the people.
Description of drawings
Specify the utility model below in conjunction with the accompanying drawing and the specific embodiment;
Fig. 1 is energy-conservation two warm air-conditioning system figure of the utility model solar energy, natural cold-energy and low ebb electric coupling;
Wherein, 1 is source pump, and 2 is first heat exchanger, and 3 is solar heat-collection plate, and 4 is second heat exchanger, and 5 is blower fan, and 6 is evaporative air cooler, and 7 is two temp phase-change energy-accumulating devices, and 8 is temperature sensor, and 9 is signal pickup assembly, and 10 is controller, and 11 is Electric air valve.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1; Energy-conservation two warm air-conditioning systems of a kind of solar energy of the present invention, natural cold-energy and low ebb electric coupling; Said air-conditioning system comprises source pump 1, first heat exchanger 2, solar heat-collection plate 3, second heat exchanger 4, blower fan 5, evaporative air cooler 6, phase-changing energy-storing device, temperature sensing device, signal pickup assembly 9 and controller 10; Said source pump 1 is connected with first heat exchanger 2; Said first heat exchanger 2 is connected with second heat exchanger 4 through pipeline, is connected with solar heat-collection plate 3 and blower fan 5 on said second heat exchanger 4, and said second heat exchanger 4 is connected with evaporative air cooler 6 through pipeline; Said evaporative air cooler 6 connects a phase-changing energy-storing device through pipeline, and said phase-changing energy-storing device connects user side through pipeline; The gateway of said phase-changing energy-storing device all is connected with temperature sensing device, and said temperature sensing device is connected with signal pickup assembly 9, and said signal pickup assembly 9 is connected with controller 10;
Said phase-changing energy-storing device also is connected with first heat exchanger 2 through pipeline, and said phase-changing energy-storing device is connected with second heat exchanger 4 through pipeline.
This system is measured temperature of inlet air, outlet temperature and the wind pushing temperature of phase-changing energy-storing device through temperature sensor; Feed back to the control system; The control system compares according to the signal value that configures in advance; Controller output action signal, the unlatching of valve and the start and stop of equipment between each pipeline of control air-conditioning system.
Said pipeline is provided with the Electric air valve 11 that control air flows to.
In the present embodiment, what the phase-changing energy-storing device adopted is two temp phase-change energy-accumulating devices 7, and what temperature sensing device adopted is temperature sensor 8.
The system accumulator adopts 6 pairs of temp phase-change energy-accumulating devices, and is different from according to the flow through direction of accumulator of air during operation in accumulator, adding the phase-change material of different melting points, realized the cascade utilization of energy.
The air of the higher temperature high temperature phase change material (pcm) of flowing through earlier in the heat-accumulating process after reducing with its generation heat exchange temperature, passes through low-temperature phase-change material, with its generation heat exchange again.
The air of the lower temperature low-temperature phase-change material of flowing through earlier in the exothermic process after raising with its generation heat exchange temperature, passes through high temperature phase change material (pcm), with its generation heat exchange again.
The air of the lower temperature low-temperature phase-change material of flowing through earlier in the process of cool after raising with its generation heat exchange temperature, passes through high temperature phase change material (pcm), with its generation heat exchange again.
The air of the higher temperature high temperature phase change material (pcm) of flowing through earlier in the discharging cold course after reducing with its generation heat exchange temperature, passes through low-temperature phase-change material, with its generation heat exchange again.
Make heat transfer temperature difference increase through the phase-change material that in accumulator, adds different melting points, effectively utilized the energy of different temperatures gradient, improved energy utilization ratio, realized the cascade utilization of energy.
Said air-conditioning system comprises following operational mode:
1>winter main operational mode
The solar heat-preservation pattern:
The solar heat-preservation pattern is opened; Solar heat-collection plate absorbs heat, passes to hot-air through built-in heat transfer medium, and hot-air is successively through high temperature PCM, low temperature PCM accumulation of heat; Valve F7, F8, F13, F14, F16, F17, F20, F21 open at this moment, and the accumulation of heat pattern is opened.
PCM heat release pattern:
Air passes through low temperature PCM and high temperature PCM successively, the PCM phase transformation release heat of thawing, and source pump is not moved this moment, and F1, F2, F5, F6, F7, F10, F12, F13, F14, F16, F18 open at this moment.Only when wind pushing temperature was lower than set-point, source pump was opened auxiliary heat supplying.
Source pump heat supply accumulation of heat united mode:
Heat supply in winter season, if when night, air conditioner load was higher, low ebb capable of using is established by cable and is opened the source pump heating mode, and a hot-air part is successively through high temperature PCM (phase-change material) and low temperature PCM energy storage, and another part gets into air-conditioned room and regulates indoor temperature.Valve F1, F2, F3, F4, F5, F6, F7, F10, F11, F12, F13, F14, F18 open at this moment.Night air conditioner load low when need not the source pump heat supply, can open the source pump heating mode, hot-air is through high temperature PCM and the simple energy storage of low temperature PCM, this moment, valve F3, F4, F5, F6, F7, F10, F11, F12, F13, F14, F18 opened.
Source pump heat supply combined solar accumulation of heat pattern:
The solar heat-preservation pattern is opened, and solar heat-collection plate absorbs heat, passes to hot-air through the endoplasm heat transfer medium.Hot-air is successively through high temperature PCM, low temperature PCM accumulation of heat, and valve F7, F8, F13, F14, F16, F17, F20, F21 open at this moment, and the accumulation of heat pattern is opened; Source pump is opened, heat in the direct supply chamber, and valve F1, F2, F3, F4 open.
2>transition season, air-conditioning need not all the period of time and open, and open solar heat-storing device when illumination is sufficient, and the utilization night dip was opened the heat pump accumulation of heat when illumination was inadequate, and accumulation of heat is then opened PCM exoergic pattern when needs during to the room heat supply;
3>summer cooling operational mode in season
Natural cold-energy cold-storage pattern:
Fine, when day and night temperature is higher night capable of using paddy valency electricity, adopt evaporative air cooler to make air themperature further be reduced to the cold air temperature and reach about 15 ℃-20 ℃.Cold air makes it undergo phase transition the storage cold through the low low temperature PCM of phase transition temperature.Raise through the air themperature behind the low-temperature zone phase-change material, reach about about 23 ℃-25 ℃.And then the higher high temperature section phase-change material of process phase transition temperature further stores cold.F11, F12, F13, F14, F15, F17, F18, F19, F21 open at this moment, and evaporative air cooler is opened.
PCM is put cold pattern:
Earlier discharge cold PCM in need be in the room provides the period of cold wind daytime, and return air is lowered the temperature through high temperature PCM earlier in this moment room; Pass through low temperature PCM then; Deliver to air-conditioned room, form a loop, F1, F2, F5, F6, F9, F10, F11, F13, F14 open at this moment.When wind pushing temperature was lower than setting value, refrigeration unit was opened; The cold that refrigeration unit produces hour can a part be delivered to air-conditioned room when room load, and a part is used for the PCM cold-storage, and this moment, cold wind infeeded air-conditioned room fully when indoor load is higher with reference to source pump cooling associating phase change cold-storage pattern.
Source pump cooling associating phase change cold-storage pattern:
Utilize low ebb to establish by cable and open the source pump refrigeration mode, a cold air part is successively through low temperature PCM and high temperature PCM energy storage, and another part gets into air-conditioned room and regulates indoor temperature.Valve F1, F2, F3, F4, F5, F6, F9, F10, F11, F13, F14 open at this moment.The source pump refrigeration mode is opened.
Source pump cold-storage pattern:
When need not cooling night, can open the source pump refrigeration mode, cold air is through low temperature PCM and the simple energy storage of high temperature PCM.Valve F3, F4, F5, F6, F9, F10, F11, F13, F14 open at this moment.The source pump refrigeration mode is opened.
Signal pickup assembly receives the temperature signal of temperature sensor and setting; Under the environment different condition, pass through the start and stop of controller control Electric air valve, source pump, first heat exchanger, second heat exchanger, solar heat-collection plate, blower fan and evaporative air cooler etc., thereby realize the switching of each pattern of unit.
The operational mode of the energy-saving air conditioning system of solar energy, natural cold-energy and low ebb electric coupling has been considered different time, different weather condition, different chamber's internal loading requirement respectively, can also regulate according to actual conditions in addition.
More than show and described the advantage of basic principle, principal character and the utility model of the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; The utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.

Claims (3)

1. energy-conservation two warm air-conditioning systems of a solar energy, natural cold-energy and low ebb electric coupling; Said air-conditioning system comprises source pump, first heat exchanger, second heat exchanger, solar heat-collection plate, blower fan, evaporative air cooler, phase-changing energy-storing device, temperature sensing device, signal pickup assembly and controller; Said source pump is connected with first heat exchanger; Said first heat exchanger is connected with second heat exchanger through pipeline; Be connected with solar heat-collection plate and blower fan on said second heat exchanger, said second heat exchanger is connected with evaporative air cooler through pipeline, it is characterized in that; Said evaporative air cooler connects a phase-changing energy-storing device through pipeline, and said phase-changing energy-storing device connects user side through pipeline; The gateway of said phase-changing energy-storing device all is connected with temperature sensing device, and said temperature sensing device is connected with signal pickup assembly, and said signal pickup assembly is connected with controller;
Said phase-changing energy-storing device also is connected with first heat exchanger through pipeline, and said phase-changing energy-storing device is connected with second heat exchanger through pipeline.
2. energy-conservation two warm air-conditioning systems of a kind of solar energy according to claim 1, natural cold-energy and low ebb electric coupling is characterized in that said pipeline is provided with the Electric air valve that control air flows to.
3. energy-conservation two warm air-conditioning systems of a kind of solar energy according to claim 1, natural cold-energy and low ebb electric coupling is characterized in that said phase-changing energy-storing device is two temp phase-change energy-accumulating devices, comprise natural cold-energy cold-storage part and solar heat-preservation part.
CN2011205026480U 2011-12-06 2011-12-06 Energy-saving and dual-temperature air-conditioning system for solar energy, natural cold energy and low-ebb electric coupling Expired - Fee Related CN202371823U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205026480U CN202371823U (en) 2011-12-06 2011-12-06 Energy-saving and dual-temperature air-conditioning system for solar energy, natural cold energy and low-ebb electric coupling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205026480U CN202371823U (en) 2011-12-06 2011-12-06 Energy-saving and dual-temperature air-conditioning system for solar energy, natural cold energy and low-ebb electric coupling

Publications (1)

Publication Number Publication Date
CN202371823U true CN202371823U (en) 2012-08-08

Family

ID=46595522

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205026480U Expired - Fee Related CN202371823U (en) 2011-12-06 2011-12-06 Energy-saving and dual-temperature air-conditioning system for solar energy, natural cold energy and low-ebb electric coupling

Country Status (1)

Country Link
CN (1) CN202371823U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102434929A (en) * 2011-12-06 2012-05-02 上海海事大学 Energy-saving dual-temperature air-conditioning system coupling solar energy, natural cold energy and off-peak electricity
CN102927721A (en) * 2012-11-09 2013-02-13 沈阳建筑大学 Ternary bidirectional phase change energy storage type heat exchanger
CN107289494A (en) * 2016-04-13 2017-10-24 华电电力科学研究院 Central heating system based on distributed heating heat-storage technology
CN113757847A (en) * 2021-08-24 2021-12-07 广东工业大学 Temperature adjusting method and temperature adjusting device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102434929A (en) * 2011-12-06 2012-05-02 上海海事大学 Energy-saving dual-temperature air-conditioning system coupling solar energy, natural cold energy and off-peak electricity
CN102927721A (en) * 2012-11-09 2013-02-13 沈阳建筑大学 Ternary bidirectional phase change energy storage type heat exchanger
CN107289494A (en) * 2016-04-13 2017-10-24 华电电力科学研究院 Central heating system based on distributed heating heat-storage technology
CN113757847A (en) * 2021-08-24 2021-12-07 广东工业大学 Temperature adjusting method and temperature adjusting device

Similar Documents

Publication Publication Date Title
CN102434929B (en) Energy-saving dual-temperature air-conditioning system coupling solar energy, natural cold energy and off-peak electricity
CN207350892U (en) One kind is provided multiple forms of energy to complement each other application system
CN202274678U (en) Heat pump system
CN104075484B (en) A kind of heating air-conditioner system and operation method fully utilizing solar energy and air energy
CN107270580B (en) Cold and hot confession system that allies oneself with of compound solar energy collection of energy storage type and heat pump
CN109696891A (en) Micro- energy net system and its progress control method comprising air source heat pump and energy storage
CN202371823U (en) Energy-saving and dual-temperature air-conditioning system for solar energy, natural cold energy and low-ebb electric coupling
CN103644612A (en) Heat source tower heat pump air-conditioning system capable of using cool storage device to assist heating
CN108917063A (en) The cold, heat and power triple supply system provided multiple forms of energy to complement each other is built for only suitable for villages and small towns
CN209541070U (en) A kind of annual capillary network radiation air-conditioner energy conserving system of combination phase-changing energy-storing
CN204345832U (en) Solar energy seasonal storage compound trough-electricity drives air source heat pump system
CN106802024B (en) A kind of heat pump air conditioner and domestic hot-water's association system based on phase-change accumulation energy
Farzan The study of thermostat impact on energy consumption in a residential building by using TRNSYS
CN101694319B (en) Energy storage system for utilizing fire control water tank to realize storage of cold and heat
CN202902525U (en) Ice storage and water thermal storage system
CN102425827B (en) Solar cogeneration cold-accumulation-type central air conditioning system for villa
CN112539564A (en) Novel passive combined cooling heating and power system
CN104033975A (en) Energy-saving double-temperature air conditioning system making use of solar energy and natural cold energy
CN201637195U (en) Heat and cold multi-generation system based on solar medium and high temperature utilization
CN208458311U (en) System of providing multiple forms of energy to complement each other based on cold, heat and electricity triple supply
CN104110915A (en) Water heating method and device through coupling of refrigerating unit condensation heat and collected solar heat
CN115751746A (en) Zero-carbon energy supply system of shallow layer and middle and deep layer geothermal energy coupling light storage system
CN109307341A (en) A kind of annual capillary network radiation air-conditioner energy conserving system of combination phase-changing energy-storing
CN208671240U (en) The cold, heat and power triple supply system provided multiple forms of energy to complement each other is built for only suitable for villages and small towns
CN203274090U (en) Closed ice storage air conditioner heat pump device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120808

Termination date: 20121206