CN101498518A - Water heating system of multifunctional ice accumulation air conditioner and its control method - Google Patents
Water heating system of multifunctional ice accumulation air conditioner and its control method Download PDFInfo
- Publication number
- CN101498518A CN101498518A CN 200810005237 CN200810005237A CN101498518A CN 101498518 A CN101498518 A CN 101498518A CN 200810005237 CN200810005237 CN 200810005237 CN 200810005237 A CN200810005237 A CN 200810005237A CN 101498518 A CN101498518 A CN 101498518A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- valve
- ice storage
- ice
- parallel
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000010438 heat treatment Methods 0.000 title claims description 19
- 238000009825 accumulation Methods 0.000 title description 10
- 238000004378 air conditioning Methods 0.000 claims abstract description 30
- 239000002131 composite material Substances 0.000 claims description 8
- 239000013589 supplement Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 238000004781 supercooling Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 206010019332 Heat exhaustion Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
Images
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air Conditioning Control Device (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a multifunctional ice storage air conditioning hot water system capable of efficiently utilizing peak and valley price. The air conditioning hot water system can greatly enhance the running efficiency of an air conditioning system and the utilization efficiency of energy by additionally arranging a heat exchanger among an ice storage cylinder, an outdoor heat exchanger and an indoor heat exchanger and arranging an electromagnetic valve which can be independently controlled at both ends of the ice storage cylinder and both ends of the outdoor heat exchanger. In addition, the invention also discloses a control method for the air conditioning system.
Description
Technical field
The present invention relates to refrigeration air-conditioner, heat pump, Teat pump boiler field, relate in particular to and a kind ofly can effectively utilize the multi-functional ice storage air conditioner hot-water heating system of time-of-use tariffs and the control method of this system.
Background technology
The ice storage air conditioner technology is to utilize cheap paddy electricity to carry out the ice making accumulation of energy, discharges cold energy for a used power-saving technology of air-conditioning when the peak electricity.Ice storage air conditioner is broadly divided into static ice making and dynamic ice-making two big classes according to ice making method.Wherein static ice making has two kinds of ice-melting modes, and a kind of is outer ice-melting mode, and another kind is interior ice-melting mode.Small-sized ice storage air conditioner unit generally all is to adopt direct fluorine refrigeration ice-reserving and interior ice-melting mode, reaches purpose of energy saving thereby the cold energy that ice-melt discharges is used to improve the degree of supercooling of kind of refrigeration cycle, but not really uses the cold of ice-melt to carry out direct cooling.The ice storage air conditioner unit mostly is to have only simple cold-storage to release cold (for refrigeration) function.The multi-functional machine integrated technology begins developed in recent years, as on August 30th, 2006 disclosed application number be that 200610034853.2 cold accumulating device by ice improves refrigerating efficiency with regard to the degree of supercooling that is to use cold storage capacity to strengthen kind of refrigeration cycle, simultaneously this device according to season difference also with Ice Storage Tank as the accumulation of heat tube, store the heat behind the heat pump cycle.Can realize the switching of ice-reserving, ice-melt refrigeration, conventional refrigeration, heat pump, accumulation of heat and six kinds of operational modes of heat release.But there are following drawback in the air-conditioning system and the control method thereof of this ice cold-storage unit of this use: heating mode is opened simultaneously when actual regenerative operation, can not carry out accumulation of heat in the unit gap of heating, can only store the heat that satisfies behind the indoor heating, the heat storage capacity deficiency in the unit interval; Low temperature environment down operation heat release pattern can cause institute's amount of stored heat to be lost to drawback in the environment by outdoor heat exchanger; Institute's amount of stored heat only can be used for air conditioning and heating, produces the purpose of life with hot water when can't satisfy heat supply or cooling simultaneously.
Summary of the invention
One object of the present invention is at the problems referred to above, and the multi-functional ice storage air conditioner hot-water heating system that a kind of energy loss is little, operational efficiency is high is provided.
Another object of the present invention is to provide a kind of control method to above-mentioned multi-functional ice storage air conditioner hot-water heating system.
For achieving the above object, the present invention adopts following technical scheme: a kind of multi-functional ice storage air conditioner hot-water heating system, comprise compressor, gas-liquid separator, cross valve, outdoor heat exchanger, ice storage cylinder and indoor heat exchanger, described ice storage cylinder is between outdoor heat exchanger and indoor heat exchanger, also comprise in this air-conditioning system: a heat exchanger, first group of pipeline of this heat exchanger is connected in series between described outdoor heat exchanger and the ice storage cylinder, and second group of pipeline of heat exchanger is serially connected with between described ice storage cylinder and the indoor heat exchanger; One magnetic valve is parallel to the branch road two ends that described outdoor heat exchanger and heat exchanger first pipeline are constituted; The parallel component that one electric expansion valve and magnetic valve constitute, this parallel component is serially connected with described ice-reserving bucket front end; One electric expansion valve is serially connected with the indoor heat exchanger front end; One magnetic valve is parallel to the branch road two ends that are made of described parallel component and ice storage cylinder; And three magnetic valve, wherein a magnetic valve is serially connected with the front end of heat exchanger second pipeline, another magnetic valve is parallel to the two ends of described heat exchanger second pipeline and the branch road that magnetic valve constituted that is connected in series, and the 3rd magnetic valve is parallel to the branch road two ends that are made of described indoor heat exchanger and electric expansion valve.
Be connected in series a composite component on the branch road that first pipeline of outdoor heat exchanger and heat exchanger constitutes, this composite component is composed in parallel and is positioned at the first pipeline rear end of heat exchanger by an electric expansion valve and a check valve.
Described heat exchanger is a heat-exchangers of the plate type or tube-in-tube heat exchanger.
Described ice storage cylinder is provided with water return outlet, feed water inlet and water supplement port.
A kind of control method to above-mentioned multi-functional ice-storage air-conditioning system, can realize six kinds of operational modes of air-conditioning system, the valve state of a control such as the following table of each operational mode by the state of controlling above-mentioned each valve:
Can realize also that by the state of controlling above-mentioned each valve air-conditioning system heats following two kinds of operational modes of water, its valve state of a control is as follows:
Multifuctional air conditioning system of the present invention has the following advantages:
1) system has multiple function: cold (indirectly, directly get cold all can), heat pump heating be got in conventional refrigeration, ice-reserving, ice-melt, heat pump/refrigerating heats water, accumulation of heat, heat release heat supply.
2) design one heat exchanger in system, the degree of supercooling before the cold circulation time of ice-reserving increases throttling, the terminal cold of recovery section ice storage cylinder also can improve the suction temperature of compressor, improve running efficiency of system.
3) in refrigeration or heating, can produce life and use hot water, also can produce hot water (the heating circulation that magnetic valve 12 is opened) separately, reclaim used heat, save the energy.
4) ice storage cylinder and outdoor heat exchanger adopt also, the independent control design of the electromagnetism of connect, heat soon, heat loss is little.Use amount of stored heat to add hot-air when heating starts earlier, required " preventing to blow a cold wind over " stand-by period when reducing the ordinary hot pumping system and starting, and the normal heat supply noenergy loss of low temperature, prolong the heat release time.
Description of drawings
Fig. 1 is the system diagram of the multi-functional ice-storage air-conditioning system of the present invention.
Fig. 2 is the running status schematic diagram of air-conditioning system of the present invention when the low temperature heat release.
Fig. 3 is the system mode schematic diagram of air-conditioning system of the present invention when the ice-reserving mode operation.
Fig. 4 is the system mode schematic diagram of air-conditioning system of the present invention while operating heat pump water heater pattern when refrigerating state.
Among the figure
1. compressor 2. cross valves 3. outdoor heat exchangers 4. change interchanger
7,13. electric expansion valves, 8. ice storage cylinders (or accumulation of heat tube) are water return outlet 9.
10. the feed water inlet 5,6,11,12,18,19 magnetic valves, 14. indoor heat exchangers
15. gas-liquid separator 16. water supplement ports
17. composite component (forming) by electric expansion valve and check valve
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Consult Fig. 1, multi-functional ice storage air conditioner hot-water heating system of the present invention, comprise compressor 1, gas-liquid separator 15, cross valve 2, outdoor heat exchanger 3, ice storage cylinder 8 and indoor heat exchanger 14, described ice storage cylinder 8 also comprises in this air-conditioning system between outdoor heat exchanger 3 and indoor heat exchanger 14:
One heat exchanger 4, first group of pipeline of this heat exchanger 4 is connected in series between described outdoor heat exchanger 3 and the ice storage cylinder 8, and second group of pipeline of heat exchanger 4 is serially connected with between described ice storage cylinder 8 and the indoor heat exchanger 14.
One magnetic valve 5 is parallel to the branch road two ends that described outdoor heat exchanger 3 and heat exchanger first pipeline are constituted.
The parallel component that one electric expansion valve 7 and magnetic valve 19 constitute, this parallel component is serially connected with described ice-reserving bucket 8 front ends.
One electric expansion valve 13 is serially connected with indoor heat exchanger 14 front ends.
One magnetic valve 6 is parallel to the branch road two ends that are made of described parallel component and ice storage cylinder 8.
And three magnetic valve 11,12 and 18, wherein a magnetic valve 18 is serially connected with the front end of heat exchanger 4 second pipelines, another magnetic valve 11 is parallel to the two ends of the branch road that described heat exchanger 4 second pipelines and the magnetic valve 18 that is connected in series constituted, and magnetic valve 12 is parallel to the branch road two ends that are made of described indoor heat exchanger 14 and electric expansion valve 13.
In Fig. 1-Fig. 4, above-mentioned indoor heat exchanger 14 and expansion valve 13 are one, and in fact indoor heat exchanger 14 and expansion valve 13 can be for a plurality of.
Be connected in series a composite component 17 on the branch road that first pipeline of outdoor heat exchanger 3 and heat exchanger 4 constitutes, this composite component 17 is composed in parallel and is positioned at the first pipeline rear end of heat exchanger 4 by an electric expansion valve and a check valve.Composite component 17 is set, it can not exert an influence to system's operation under operating modes such as refrigeration, ice-reserving and ice-melt, and in the next pressure loss that in multicell, differs and cause owing to each expansion valve 13 throttle opening under the heat exchanger situation can avoided of routine heating operating mode, system had both been made when many indoor sets move still can keep higher running efficiency.
Described heat exchanger 4 can be a heat-exchangers of the plate type, tube-in-tube heat exchanger or other forms of heat exchanger.
Described ice storage cylinder 8 is provided with water return outlet 9, feed water inlet 10 and water supplement port 16.Can provide low-temperature receiver or thermal source for end system if on water return outlet 9 and feed water inlet 10, be connected the air conditioning terminal system; Also can be used as water heater and externally provide hot water by the feed water inlet.The supply of water is undertaken by water supplement port 16 in the tube.
Air-conditioning system of the present invention can realize six kinds of operational modes of air-conditioning system by the state of controlling above-mentioned each valve, the valve state of a control such as the following table of each operational mode:
Also can realize following two kinds of operational modes of air-conditioning system by the state of controlling above-mentioned each valve, its valve state of a control is as follows:
Fig. 2 represents the running status schematic diagram of air-conditioning system of the present invention when the low temperature heat release.Referring to Fig. 2, heating function one starts, magnetic valve 5 is opened, the heat of the taking-up from accumulation of heat tube 8 is directly sucked by compressor 1, room air is heated very soon, reduced the time that the wait of using common heat pump air conditioner to need " prevents to blow a cold wind over ", heat that outdoor heat exchanger 3 brought scatters and disappears also to have avoided heat to flow through, and has improved the operational efficiency of system.If magnetic valve 5 can partly be opened or close fully to environment temperature than higher, also, absorb heat from external environment condition, reduce the heat exhaustion of ice storage cylinder 8.
Fig. 3 is the system mode schematic diagram of air-conditioning system of the present invention when the ice-reserving mode operation.This moment, magnetic valve 11 cut out, magnetic valve 18 is opened, the refrigerant heat exchanger 4 of flowing through, and the cold that utilizes ice storage cylinder 8 ends increases degree of supercooling before the throttlings by heat exchanger 4, can also improve simultaneously the suction temperature of compressor 1, the efficient and the security of the operation of raising system.
Fig. 4 heats the system mode schematic diagram of aqueous mode simultaneously when refrigerating state for air-conditioning system of the present invention.Magnetic valve 5 unlatchings this moment, refrigerant enters accumulation of heat tube 8 through magnetic valve 5, add the retaining in the thermal regenerator tube 8, carry out the sensible heat accumulation of heat, produce the domestic hot-water, can effectively reclaim the used heat that produces in the process of refrigerastion, improve efficiency of energy utilization, the heat of avoiding again simultaneously producing scatters and disappears through outdoor heat exchanger 3, causes the tropical island effect of environment.
Above the present invention is described in detail, has used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (6)
1. multi-functional ice storage air conditioner hot-water heating system, comprise compressor (1), gas-liquid separator (15), cross valve (2), outdoor heat exchanger (3), ice storage cylinder (8) and indoor heat exchanger (14), described ice storage cylinder (8) is positioned between outdoor heat exchanger (3) and the indoor heat exchanger (14), it is characterized in that also comprising in this air-conditioning system:
One heat exchanger (4), first group of pipeline of this heat exchanger (4) are connected in series between described outdoor heat exchanger (3) and the ice storage cylinder (8), and second group of pipeline of heat exchanger (4) is serially connected with between described ice storage cylinder (8) and the indoor heat exchanger (14);
One magnetic valve (5) is parallel to the branch road two ends that described outdoor heat exchanger (3) and heat exchanger first pipeline are constituted;
The parallel component that one electric expansion valve (7) and magnetic valve (19) constitute, this parallel component is serially connected with described ice-reserving bucket (8) front end;
One electric expansion valve (13) is serially connected with indoor heat exchanger (14) front end;
One magnetic valve (6) is parallel to the branch road two ends that are made of described parallel component and ice storage cylinder (8);
And three magnetic valves (11), (12) and (18), wherein a magnetic valve (18) is serially connected with the front end of heat exchanger (4) second pipelines, another magnetic valve (11) is parallel to the two ends of the branch road that described heat exchanger (4) second pipelines and the magnetic valve that is connected in series (18) constituted, and magnetic valve (12) is parallel to the branch road two ends that are made of described indoor heat exchanger (14) and electric expansion valve (13).
2. multi-functional ice-storage air-conditioning system according to claim 1, it is characterized in that: be connected in series a composite component (17) on the branch road that first pipeline of outdoor heat exchanger (3) and heat exchanger (4) constitutes, this composite component is composed in parallel and is positioned at the first pipeline rear end of heat exchanger (4) by an electric expansion valve and a check valve.
3. multi-functional ice-storage air-conditioning system according to claim 1 is characterized in that: described heat exchanger (4) is a heat-exchangers of the plate type or tube-in-tube heat exchanger.
4. multi-functional ice-storage air-conditioning system according to claim 1 is characterized in that: described ice storage cylinder (8) is provided with water return outlet (9), feed water inlet (10) and water supplement port (16).
5. the control method of the described multi-functional ice storage air conditioner hot-water heating system of above-mentioned each claim, it is characterized in that: can realize six kinds of operational modes of air-conditioning system, the valve state of a control such as the following table of each operational mode by the state of controlling above-mentioned each valve:
6. control method according to claim 5 is characterized in that, also can realize following two kinds of operational modes of air-conditioning system by the state of controlling above-mentioned each valve, and its valve state of a control is as follows:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100052373A CN101498518B (en) | 2008-01-31 | 2008-01-31 | Water heating system of multifunctional ice accumulation air conditioner and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100052373A CN101498518B (en) | 2008-01-31 | 2008-01-31 | Water heating system of multifunctional ice accumulation air conditioner and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101498518A true CN101498518A (en) | 2009-08-05 |
| CN101498518B CN101498518B (en) | 2010-12-08 |
Family
ID=40945701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100052373A Active CN101498518B (en) | 2008-01-31 | 2008-01-31 | Water heating system of multifunctional ice accumulation air conditioner and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101498518B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331073A (en) * | 2011-09-28 | 2012-01-25 | 宁波奥克斯电气有限公司 | Control method for ice storage multi-split air conditioning unit |
| CN102338444A (en) * | 2011-09-28 | 2012-02-01 | 宁波奥克斯电气有限公司 | Ice-storage control method for supercooled water direct-current frequency conversion ice-storage multi-connected air conditioner |
| CN104180479A (en) * | 2014-08-29 | 2014-12-03 | 深圳华森建筑与工程设计顾问有限公司 | Cold accumulation air-conditioning system and control method thereof |
| CN104180454A (en) * | 2014-08-29 | 2014-12-03 | 深圳华森建筑与工程设计顾问有限公司 | Dynamic ice-crystal storage and chilled water storage mixed system and control method |
| CN106123390A (en) * | 2016-09-06 | 2016-11-16 | 广东志高暖通设备股份有限公司 | A kind of total heat recovery module water machine system |
| CN106766318A (en) * | 2017-02-06 | 2017-05-31 | 刘勇 | There is the CO of various functions such as water heating ice making for weather of extremely trembling with fear2Heat pump |
| CN106969395A (en) * | 2017-03-31 | 2017-07-21 | 广东工业大学 | A kind of heat accumulating type air source heat pump directly coagulates formula ground heating system |
| CN107614985A (en) * | 2015-05-26 | 2018-01-19 | 三菱电机株式会社 | Teat pump hot water supply system |
| WO2018058731A1 (en) * | 2016-09-30 | 2018-04-05 | 广东美的制冷设备有限公司 | Air conditioning system, air conditioner, and air conditioning method |
| CN110595089A (en) * | 2019-08-28 | 2019-12-20 | 同济大学 | Air conditioning system capable of recovering indoor residual cold and residual heat after shutdown |
| CN112594954A (en) * | 2021-01-18 | 2021-04-02 | 北京天意能科技有限公司 | Full-working-condition double-cold-storage warm air conditioning system |
| CN112665220A (en) * | 2021-01-14 | 2021-04-16 | 同济大学 | Air source heat pump system based on refrigerant supercooling heat recovery efficiency improvement and control method |
-
2008
- 2008-01-31 CN CN2008100052373A patent/CN101498518B/en active Active
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338444A (en) * | 2011-09-28 | 2012-02-01 | 宁波奥克斯电气有限公司 | Ice-storage control method for supercooled water direct-current frequency conversion ice-storage multi-connected air conditioner |
| CN102331073A (en) * | 2011-09-28 | 2012-01-25 | 宁波奥克斯电气有限公司 | Control method for ice storage multi-split air conditioning unit |
| CN104180479A (en) * | 2014-08-29 | 2014-12-03 | 深圳华森建筑与工程设计顾问有限公司 | Cold accumulation air-conditioning system and control method thereof |
| CN104180454A (en) * | 2014-08-29 | 2014-12-03 | 深圳华森建筑与工程设计顾问有限公司 | Dynamic ice-crystal storage and chilled water storage mixed system and control method |
| CN104180454B (en) * | 2014-08-29 | 2017-01-11 | 深圳华森建筑与工程设计顾问有限公司 | Dynamic ice-crystal storage and chilled water storage mixed system and control method |
| CN104180479B (en) * | 2014-08-29 | 2017-02-01 | 深圳华森建筑与工程设计顾问有限公司 | Cold accumulation air-conditioning system and control method thereof |
| CN107614985B (en) * | 2015-05-26 | 2020-04-14 | 三菱电机株式会社 | Heat pump hot water supply system |
| CN107614985A (en) * | 2015-05-26 | 2018-01-19 | 三菱电机株式会社 | Teat pump hot water supply system |
| CN106123390A (en) * | 2016-09-06 | 2016-11-16 | 广东志高暖通设备股份有限公司 | A kind of total heat recovery module water machine system |
| CN106123390B (en) * | 2016-09-06 | 2018-06-26 | 广东志高暖通设备股份有限公司 | A kind of total heat recovery module water dispenser system |
| WO2018058731A1 (en) * | 2016-09-30 | 2018-04-05 | 广东美的制冷设备有限公司 | Air conditioning system, air conditioner, and air conditioning method |
| CN106766318A (en) * | 2017-02-06 | 2017-05-31 | 刘勇 | There is the CO of various functions such as water heating ice making for weather of extremely trembling with fear2Heat pump |
| CN106969395A (en) * | 2017-03-31 | 2017-07-21 | 广东工业大学 | A kind of heat accumulating type air source heat pump directly coagulates formula ground heating system |
| CN110595089A (en) * | 2019-08-28 | 2019-12-20 | 同济大学 | Air conditioning system capable of recovering indoor residual cold and residual heat after shutdown |
| CN112665220A (en) * | 2021-01-14 | 2021-04-16 | 同济大学 | Air source heat pump system based on refrigerant supercooling heat recovery efficiency improvement and control method |
| CN112594954A (en) * | 2021-01-18 | 2021-04-02 | 北京天意能科技有限公司 | Full-working-condition double-cold-storage warm air conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101498518B (en) | 2010-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101498518B (en) | Water heating system of multifunctional ice accumulation air conditioner and its control method | |
| CN101464058B (en) | Large energy accumulation type air source heat pump hot water units | |
| CN101140122B (en) | Heat pump machine group of combined throttling set | |
| CN206540334U (en) | Solar heat-preservation type air source heat pump defrosting system | |
| CN101201198A (en) | Refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit | |
| CN111336721B (en) | Air source heat pump air conditioner and heat pump water heater combined operation system | |
| CN201363859Y (en) | Air conditioning unit | |
| CN103398505A (en) | Combined heat pump and solar hot water heating and ventilation system | |
| CN103712367A (en) | Solar-energy air-source heat pump air-conditioning system | |
| CN202254480U (en) | Multifunctional hot water air conditioning system | |
| CN109341165A (en) | A kind of air source heat pump defrosting system based on heat of compressor phase-change accumulation energy | |
| CN111795517A (en) | Air source heat pump based on liquid excess cold and heat recovery defrosting technology | |
| CN106595112A (en) | Solar heat accumulation type two-stage compressed air source heat pump system and operation method thereof | |
| CN111750562A (en) | Heat source tower heat pump system based on water energy storage | |
| CN203274348U (en) | Ultralow-temperature double-loop heat pump air-conditioning hot water machine | |
| CN201100796Y (en) | Thermal pump unit of combined flow saving device | |
| CN202675732U (en) | Self-adaptation matching solar auxiliary air source heat pump device | |
| CN101936613B (en) | Integrated heat exchange system | |
| CN201819393U (en) | Parallel mutual defrosting air source heat pump water heater | |
| CN101266074A (en) | Highly effective energy-saving environment-friendly type heat pump air-conditioner water heater | |
| CN1381701A (en) | Lithium bromide absorption type refrigerator suitable for large temp differnece and able to fully utilize energy | |
| CN201753994U (en) | Integrated heat exchange system | |
| CN201155881Y (en) | Multifunctional ice-accumulating air conditioner hot water system | |
| CN102022791B (en) | Energy accumulation type air conditioning water chiller/heater | |
| CN201503170U (en) | Ground-source heat pump unit capable of providing full heat recovery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20240326 Granted publication date: 20101208 |