CN106091076A - A kind of heat source tower heat pump using salt-free formula external auxiliary heating frosting-proof device - Google Patents
A kind of heat source tower heat pump using salt-free formula external auxiliary heating frosting-proof device Download PDFInfo
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- CN106091076A CN106091076A CN201610589713.5A CN201610589713A CN106091076A CN 106091076 A CN106091076 A CN 106091076A CN 201610589713 A CN201610589713 A CN 201610589713A CN 106091076 A CN106091076 A CN 106091076A
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- heat
- source tower
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- heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/006—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
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- Mechanical Engineering (AREA)
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention discloses a kind of heat source tower heat pump using salt-free formula external auxiliary heating frosting-proof device.It is an object of the invention to provide a kind of heat source tower heat pump using salt-free formula external auxiliary heating frosting-proof device.The present invention includes heat source tower and source pump, this heat source tower is connected with refrigerating medium back liquid pipeline by refrigerating medium transmission pipeline with source pump, it is characterized in that: in heat source tower described in A., be provided with heat exchanger, spray thrower is arranged at the top of this heat exchanger, exhaust fan is arranged at the top of this spray thrower, the bottom of heat source tower is connected with solution pool by liquid dish, and this solution pool is connected with spray thrower by spray liquid circulating pump；The most described source pump includes compressor, vaporizer, expansion valve and condenser, vaporizer is connected with heater and refrigerating medium circulating pump by pipeline respectively with condenser, vaporizer connects with compressor and condenser respectively, and this condenser also directly connects with compressor.Present invention is mainly used for heat source tower heat pump salt-free formula external auxiliary heating frosting-proof.
Description
Technical field
The present invention relates to a kind of heat source tower heat pump, particularly relate to a kind of thermal source using salt-free formula external auxiliary heating frosting-proof device
Tower heat pump.
Background technology
In Middle And Lower Reaches of Changjiang River belongs to the hot-summer and cold-winter area in thermal technology Study on Climate Division, and mean winter temperature is low, the wettest
Degree is big, and therefore the amount of latent heat of humid air is big.Heat source tower heat pump utilizes the heating installation that this kind of latent heat efficiency is the highest just.It utilizes
The refrigerating medium of lower temperature, absorbs heat from outside atmosphere in heat source tower, and recycling source pump transfers heat to user
End.Except heat supply in winter, summer heat source tower can be converted into used for cooling tower in cooling.Heat source tower is divided into open type heat source tower and closes
Formula heat source tower, relative to open type heat source tower, what closed type heat source tower can reduce refrigerating medium anti-freezing solution flies away loss, and it is right also to reduce
The pollution of refrigerating medium, and the pollution of heat pump, beneficially longtime running, be the main side of heat source tower research and development in the future
To.But the heat exchanger of closed type heat source tower uses metal material, when outdoor temperature is less than 2 DEG C, the steam in outdoor air
Easily in heat exchanger surface frosting, have a strong impact on the coefficient of heat transfer of heat source tower, cause source pump heating to reduce and even cannot supply
Warm.In south China area, mean temperature is at 2-8 DEG C, and the weather of relative humidity more than 81% typically has more than 30 days, this gas
Closed type heat source tower easily frosting under the conditions of time.Anti-defrosting is that heat source tower heat pump promotes the use of urgent problem.Currently for
The solution of the anti-defrosting of heat source tower mainly has two categories below, a class to be to use saline solution spray, reduces heat source tower heat exchanger table
The freezing point in face；Another kind of is that the Water spray heat exchanger using heating carrys out defrosting.
1. saline solution spray
Use the certain density saline solution configured that heat source tower heat exchanger is sprayed, reduce the solidification on heat exchange fin surface
Point；This kind of anti-defrosting mode it is critical only that the selection to salt kind and the concentration proportioning of saline solution, for different operating modes, needs
A lot of experimentatioies sum up suitable solute and proportioning, need to carry out the concentration of solution pool in time in running simultaneously
Monitoring, timely make-up solution, concentrate the saline solution being diluted.This kind of mode is most widely used at present, it is possible to keeping thermal source
Effective anti-defrosting while tower heat exchange efficiency, shortcoming is to need to increase in saline solution equipment investment and running saline solution
Concentration measurement and control equipment, saline solution also has corrosion in various degree to metallic conduit and heat exchanger simultaneously.
2. heat water-spraying
The hot water using uniform temperature sprays defrost to heat source tower heat exchanger.This mode advantage is fairly simple, it is not necessary to
Proportioning solution, therefore without monitoring concentration, subject matter is from how ensureing that hot water is stably originated consideration.Currently mainly have two
Planting hot water source, a kind of water source that uses, another kind of employing source pump condenses hot water.Water source is used to need accordingly
Reason resource, can reduce heat pump heat supply amount simultaneously, and initial cost is relatively big, safeguards inconvenience during defrosting；Use source pump condensation heat
During water cannot ensure defrosting, heat pump persistently heats, i.e. with the heat defrosting of heating.Work as awful weather, the heat of both thermals source
Even it is difficult to meet defrosting demand.
Summary of the invention
It is an object of the invention to provide a kind of heat source tower heat pump using salt-free formula external auxiliary heating frosting-proof device, to reduce
The initial cost cost of the anti-defrosting of heat source tower heat pump, reduces the saline solution corrosion to heat source tower metal parts, is provided that enough simultaneously
Anti-defrosting heat, and heat pump persistently heats during ensureing defrosting.
For achieving the above object, the technical solution of the present invention is: the salt-free formula external auxiliary heating frosting-proof device of a kind of employing
Heat source tower heat pump, including heat source tower and source pump, this heat source tower and source pump are by refrigerating medium transmission pipeline and refrigerating
Agent back liquid pipeline connects, it is characterised in that:
Being provided with heat exchanger 14 in the most described heat source tower 1, spray thrower 3 is arranged at the top of this heat exchanger, and the top of this spray thrower has
Exhaust fan 2, the bottom of heat source tower is connected with solution pool 16 by liquid dish 15, and this solution pool is by spray liquid circulating pump 17 and spray
Drench device 3 to connect；
The most described source pump 8 includes compressor 9, vaporizer 10, expansion valve 11 and condenser 12, vaporizer 10 and condensation
Device 12 is connected with heater 5 and refrigerating medium circulating pump 13 respectively by pipeline, vaporizer 10 respectively with compressor 9 and condenser
12 connections, this condenser also directly connects with compressor 9.
Described heater 5 is mounted in the electric heater unit on refrigerating medium transmission pipeline, the appearance of this electric heater unit
Bread is covered with heat-insulation layer.
Described heater 5 is mounted in the heater on refrigerating medium transmission pipeline, and this heater is hot water or heat
Oil or steam heat exchanger, the outer surface of this heat exchanger is coated with heat-insulation layer.
Described heater 5 is mounted in the heater in solution pool 16, this device be electric heater unit or hot water or
Deep fat or the tubular type of steam or the recuperator of wing formula.
Described heater 5 is mounted in the heater on heat source tower spray transmission pipeline 18, and this heater is electricity
Heater or hot water or deep fat or steam heat exchanger, the outer surface of this electric heater unit or heat exchanger is coated with heat-insulation layer.
The outer surface of described solution pool 16 is coated with heat-insulation layer.
Described spray thrower 3 be spray solution be the spray thrower of water.
The invention has the beneficial effects as follows:
1, directly adopt and use water as spray solution.Eliminate saline solution configuration and enrichment facility, without concentration of salt solution
Supervising device, for using inconvenient local of saline solution to provide convenient.
2, persistently heat during ensureing defrosting.The installation length of heating or hot water, steam, deep fat heat exchanger heat-transfer surface
Long-pending and heat-insulation layer length and thickness determine all in accordance with concurrent heating amount maximum needed for anti-defrosting.Ensureing that sufficient defrosting heat is simultaneously
Can also be used for heating by a part of heat, during will not making defrosting, heat pump heat supply reduces or stops.
3, thermal source is abundant and convenient.Thermal source has thermal medium or the recuperations of heat such as the auxiliary thermal source of electricity, and hot water, steam, deep fat
Medium thermal source.One or more thermals source can be selected to ensure defrosting and the heat demand of heating.If treatment in accordance with local conditions is adopted simultaneously
With tow taste heats such as existing recuperation of heat media, can be the most energy-conservation.
4, mounting means is flexible, applied widely, easy and simple to handle.Can want according to heat source tower heat pump field condition and installation
Asking, type and the installation site of choosing outer auxiliary thermal flexibly are installed.Defrosting heat source tower heat pump anti-for existing tradition,
Also may select described outer auxiliary thermal effectively supplementing as anti-defrosting.Can be not only used for closed type heat source tower it can also be used to open type is hot
Source tower.
Accompanying drawing explanation
Fig. 1 is the electric heater unit of present invention structural representation when being arranged on refrigerating medium transmission pipeline.
Structure when Fig. 2 is the hot water of the present invention or deep fat or hot gas heating device is arranged on refrigerating medium transmission pipeline is shown
It is intended to.
Fig. 3 is that the heater of the present invention is arranged on structural representation when heat source tower sprays on transmission pipeline.
Fig. 4 is the heater of present invention structural representation when being arranged in heat source tower solution pool.
In figure: 1-heat source tower, 2-exhaust fan, 3-spray thrower, 4-refrigerating medium transmission pipeline, 5-heater, 6-heat-insulation layer,
7-hot water, deep fat, steam, 8-source pump, 9-compressor, 10-vaporizer, 11-expansion valve, 12-condenser, 13-refrigerating medium
Circulating pump, 14-heat exchanger, 15-liquid dish, 16-solution pool, 17-spray liquid circulating pump, 18-spray liquid transfer tube, 19-evaporates
Device and the water supply of the water-returning control valve of the water supply control valve of heat source tower, 20-vaporizer and heat source tower, 21-condenser and heat source tower
The water-returning control valve of control valve, 22-condenser and heat source tower, the water supply control valve of 23-user side cooling, 24-user side cooling
Water-returning control valve, the water-returning control valve of 25-user side heat supply, the water supply control valve of 26-user side heat supply, 27-heat source tower is molten
The drain control valve of liquid pool, the water supply control valve of 28-heat source tower, 29-spray liquid water supply control valve, 30-refrigerating medium back liquid pipeline.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention and detailed description of the invention thereof are described in further detail.
Seeing Fig. 1-4, the present invention includes heat source tower and source pump, and this heat source tower and source pump are transmitted by refrigerating medium
Pipeline connects with refrigerating medium back liquid pipeline, it is characterised in that:
Being provided with heat exchanger 14 in the most described heat source tower 1, spray thrower 3 is arranged at the top of this heat exchanger, and the top of this spray thrower has
Exhaust fan 2, the bottom of heat source tower is connected with solution pool 16 by liquid dish 15, and this solution pool is by spray liquid circulating pump 17 and spray
Drench device 3 to connect；
The most described source pump 8 includes compressor 9, vaporizer 10, expansion valve 11 and condenser 12, vaporizer 10 and condensation
Device 12 is connected with heater 5 and refrigerating medium circulating pump 13 respectively by pipeline, vaporizer 10 respectively with compressor 9 and condenser
12 connections, this condenser also directly connects with compressor 9.
Described heater 5 is mounted in the electric heater unit on refrigerating medium transmission pipeline, the appearance of this electric heater unit
Bread is covered with heat-insulation layer.
Described heater 5 is mounted in the heater on refrigerating medium transmission pipeline, and this heater is hot water or heat
Oil or steam heat exchanger, the outer surface of this heat exchanger is coated with heat-insulation layer.
Described heater 5 is mounted in the heater in solution pool 16, this device be electric heater unit or hot water or
Deep fat or the tubular type of steam or the recuperator of wing formula.
Described heater 5 is mounted in the heater on heat source tower spray transmission pipeline 18, and this heater is electricity
Heater or hot water or deep fat or steam heat exchanger, the outer surface of this electric heater unit or heat exchanger is coated with heat-insulation layer.
The outer surface of described solution pool 16 is coated with heat-insulation layer.
Described spray thrower 3 be spray solution be the spray thrower of water.
Embodiments of the invention given below
Example 1
Seeing Fig. 1, heat source tower 1 is connected with source pump 8 by refrigerating medium transmission pipeline 4 and refrigerating medium circulating pump 13,
Equipped with electric heater unit 5 on refrigerating medium transmission pipeline 4, and it is coated with heat-insulation layer at electric heater unit and transfer tube exposed part,
Length L of electric heater unit is determined by maximum anti-defrosting institute calorific requirement, heat-insulation layer length L ' from refrigerating medium transmission pipeline 4 and thermal source
The junction of tower heat exchanger 14 starts, to electric heater unit 5 after going the length of 0.5-1m.
, by valve 19 in the dotted line frame of the refrigerant cycle of heat pump such as Fig. 1 source pump 8 as shown by arrows, 20,
The regulation of 21,22,23,24,25,26 realizes the function to the heat supply of user side or cooling.During heat supply in winter, open valve 19,
20,25,26. close valve 21,22,23,24. refrigerating medium enters heat source tower, absorption chamber outer air heat energy by valve 19, then leads to
Cross refrigerating medium circulating pump 13 to return to vaporizer 10 heat is passed to cold-producing medium.
When needs defrosting, open electric heater unit 5, after refrigerating medium is heated, enter heat source tower heat exchanger 14, heat exchanging
Device carries out defrosting.Refrigerating medium returns in the vaporizer 10 that liquid is returned to source pump 8 by circulating pump 13, and now refrigerant temperature is higher than system
Cryogen, the most sustainable uninterrupted for the heat supply of user side.At the end of anti-defrosting, close electric heater unit 5.
The present invention also can be at summer cooling: open valve 21,22,23,24, closes valve 19,20,25,26. now thermal source
Tower becomes cooling tower, cools down water from condenser 12 through valve 21 and pipeline 4 enter the heat exchanger 14 of cooling tower 1, to outdoor
Returned in condenser by circulating pump 13 and valve 22 again after air heat radiation.Chilled water passes through valve 23 to user's cooling, freezing
Backwater is returned in vaporizer 10 by valve 24.
Example 2
Seeing Fig. 2, Fig. 2 same Fig. 1 of ultimate principle, difference is to have changed electric heater unit into hot water or deep fat or steam changes
Hot device 5, is coated with heat-insulation layer on heat exchanger and exposed refrigerating medium transmission pipeline simultaneously, and heat exchanger area is by maximum anti-defrosting
The mean temperature of institute's calorific requirement and thermal medium determines, heat-insulation layer length L ' from refrigerating medium transmission pipeline 4 and heat source tower heat exchanger 14
Junction start, to heat exchanger 5 after going the length of 0.5-1m.When the anti-defrosting of needs, supply thermal medium enters and changes
In hot device 5, heating refrigerating medium, refrigerating medium enters defrosting in heat source tower heat exchanger 14.At the end of anti-defrosting, stop supply heat and be situated between
Matter, caloic refers to hot water or the hot fluid such as deep fat or steam here.
Example 3
Seeing Fig. 3, heater is arranged on heat source tower spray transfer tube outer wall, Fig. 3 and Fig. 1 compares, simply will heating
Device 5 changes to spray liquid transfer tube 18 from refrigerating medium transmission pipeline 4, and heater 5 is electric heater unit or hot water, deep fat or heat
Maximum heat that gas heat exchanger, heater length L or heat exchange area are needed by anti-defrosting determines, heater 5 outer surface,
Exposed spray liquid transfer tube 18 outer surface and solution pool 16 outer wall are coated with heat-insulation layer, heat-insulation layer length L ' it is from solution pool
16 start with spray liquid transfer tube 18 junction, to the junction of spray liquid transfer tube 18 and spray thrower 3, except pump 17
Duct length.Anti-defrosting solution is the water for industrial use meeting technological requirement.Because solution pool does not has heater, for preventing temperature
Spend low cause freeze, at the beginning solution pool does not has water.When needing anti-defrosting, open moisturizing pipeline feed water valve 28, close spray
Drenching liquid water supply valve 29 and solution pool Draw off valve 27, open spray liquid circulating pump 17, open heater 5, water passes through pump 17,
Enter in spray liquid transfer tube 18, after being heated by heater, be sprayed onto on heat source tower heat exchanger 14 anti-melting by spray thrower 3
Frost.The refrigerating medium that now source pump 8 is transmitted through still can absorb heat in heat source tower heat exchanger 14, and source pump can not
It is interrupted for the heat supply of user side.Water after anti-defrosting and the water after frost thawing all pass through liquid dish 15 and enter in solution pool 16, when
When solution pool 16 reaches certain liquid level, open valve 29, close valve 28, now pump 17 from solution pool pump water to spray thrower.
When solution pool liquid level is too high, valve 27 can be opened and discharge water.After anti-defrosting terminates, close heater 5 and pump 17.In order to anti-
Only in solution pool, the too low icing of water temperature causes line clogging, can regularly open water in 27 solution pools of valve and drain.
Example 4
Seeing Fig. 4, heater is arranged in heat source tower solution pool, Fig. 4 and Fig. 1 compares, simply by heater 5 from load
Cryogen transmission pipeline 4 is changed in heat source tower solution pool 16, is coated with heat-insulation layer at solution pool 16 outer wall and spray liquid transfer tube 18,
Heater 5 is electric heater unit or hot water, deep fat or steam heat exchanger, electric heater unit length L or heat exchanger heat exchange area
The maximum heat needed by anti-defrosting determines, the heat-insulation layer of solution pool 16 outer wall is coated with whole solution pool outer wall, and spray liquid transmits
Heat-insulation layer length L of pipe 18 ' it is spray liquid transfer tube 18 length from pump 17 to spray thrower 3.Heat source tower solution pool is symbol
Close the water for industrial use of technological requirement.When the anti-defrosting of needs, open heater 5, after shower water heating in solution pool, then beat
Driving heat source tower spray liquid circulating pump 17, hot water passes through spray liquid transfer tube 18, and spray thrower 3 is sprayed onto on heat exchanger 14, heat exchanging
Device carries out anti-defrosting.The refrigerating medium that now source pump 8 is transmitted through still can absorb heat in heat source tower heat exchanger 14, heat
Pump assembly can be uninterruptedly the heat supply of user side.After recirculated water in solution pool and frost melt, water returns to solution by liquid dish 15
In pond 16.When liquid level is too high in solution pool, valve 27 can be opened and discharge water；When liquid level is too low, can open fluid infusion valve 28 to
Moisturizing in solution pool.When heater is electric heater unit, need the liquid level first checking in solution pool before heating, it is ensured that liquid level
Flood electric heater unit completely, to prevent electric heater unit dry combustion method, simultaneously need to make regular check on electric heater unit, prevent electric leakage.
Claims (7)
1. use a heat source tower heat pump for salt-free formula external auxiliary heating frosting-proof device, including heat source tower and source pump, this thermal source
Tower is connected with refrigerating medium back liquid pipeline by refrigerating medium transmission pipeline with source pump, it is characterised in that:
Being provided with heat exchanger (14) in the most described heat source tower (1), spray thrower (3), the top of this spray thrower are arranged at the top of this heat exchanger
Having exhaust fan (2), the bottom of heat source tower is connected with solution pool (16) by liquid dish (15), and this solution pool is circulated by spray liquid
Pump (17) connects with spray thrower (3)；
The most described source pump (8) includes compressor (9), vaporizer (10), expansion valve (11) and condenser (12), vaporizer
(10) connected with heater (5) and refrigerating medium circulating pump (13) respectively by pipeline with condenser (12), vaporizer (10) point
Not connecting with compressor (9) and condenser (12), this condenser also directly connects with compressor (9).
2. heat source tower heat pump as described in claim 1, it is characterised in that described heater (5) is mounted in refrigerating medium transfer tube
Electric heater unit on road, the outer surface of this electric heater unit is coated with heat-insulation layer.
3. heat source tower heat pump as described in claim 1, it is characterised in that described heater (5) is mounted in refrigerating medium transfer tube
Heater on road, this heater is hot water or deep fat or steam heat exchanger, and the outer surface of this heat exchanger is coated with insulation
Layer.
4. heat source tower heat pump as described in claim 1, it is characterised in that described heater (5) is mounted in solution pool (16)
Heater, this device is electric heater unit or hot water or deep fat or the tubular type of steam or the recuperator of wing formula.
5. heat source tower heat pump as described in claim 1, it is characterised in that described heater (5) is mounted in heat source tower spray and passes
Heater on defeated pipeline (18), this heater is electric heater unit or hot water or deep fat or steam heat exchanger, and this electricity adds
The outer surface of thermal or heat exchanger is coated with heat-insulation layer.
6. heat source tower heat pump as described in claim 4, it is characterised in that the outer surface of described solution pool (16) is coated with heat-insulation layer.
7. heat source tower heat pump as described in claim 1, it is characterised in that described spray thrower (3) be spray solution be the spray of water
Device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610589713.5A CN106091076A (en) | 2016-07-25 | 2016-07-25 | A kind of heat source tower heat pump using salt-free formula external auxiliary heating frosting-proof device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610589713.5A CN106091076A (en) | 2016-07-25 | 2016-07-25 | A kind of heat source tower heat pump using salt-free formula external auxiliary heating frosting-proof device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388627A (en) * | 2017-08-31 | 2017-11-24 | 王全龄 | A kind of novel energy resource tower heat pump |
| CN108731354A (en) * | 2018-07-20 | 2018-11-02 | 樊永信 | A kind of indirect refrigeration Novel energy-saving refrigeratory defrosting system |
| CN110501377A (en) * | 2019-09-21 | 2019-11-26 | 张家港市恒强冷却设备有限公司 | The check method of heat exchange fin area in air heat exchanger |
| CN111981733A (en) * | 2019-05-21 | 2020-11-24 | 青岛海尔空调电子有限公司 | Heat source tower system |
| WO2021082330A1 (en) * | 2019-10-30 | 2021-05-06 | 青岛海尔空调电子有限公司 | Heat-source tower heat exchange system and defrosting control method therefor |
| WO2021166038A1 (en) * | 2020-02-17 | 2021-08-26 | 三菱電機株式会社 | Refrigeration cycle device |
| CN115076758A (en) * | 2022-06-09 | 2022-09-20 | 重庆清研理工智能控制技术研究院有限公司 | Water-saving spray defrosting integrated closed heat source tower |
| CN116026014A (en) * | 2023-02-27 | 2023-04-28 | 湘潭大学 | Heat pump evaporation device |
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| CN111981733A (en) * | 2019-05-21 | 2020-11-24 | 青岛海尔空调电子有限公司 | Heat source tower system |
| CN110501377B (en) * | 2019-09-21 | 2021-09-17 | 张家港市恒强冷却设备有限公司 | Checking method for heat exchange fin area in air heat exchanger |
| CN110501377A (en) * | 2019-09-21 | 2019-11-26 | 张家港市恒强冷却设备有限公司 | The check method of heat exchange fin area in air heat exchanger |
| WO2021082330A1 (en) * | 2019-10-30 | 2021-05-06 | 青岛海尔空调电子有限公司 | Heat-source tower heat exchange system and defrosting control method therefor |
| WO2021166038A1 (en) * | 2020-02-17 | 2021-08-26 | 三菱電機株式会社 | Refrigeration cycle device |
| JPWO2021166038A1 (en) * | 2020-02-17 | 2021-08-26 | ||
| JP7433409B2 (en) | 2020-02-17 | 2024-02-19 | 三菱電機株式会社 | Refrigeration cycle equipment |
| CN115076758A (en) * | 2022-06-09 | 2022-09-20 | 重庆清研理工智能控制技术研究院有限公司 | Water-saving spray defrosting integrated closed heat source tower |
| CN116026014A (en) * | 2023-02-27 | 2023-04-28 | 湘潭大学 | Heat pump evaporation device |
| CN116026014B (en) * | 2023-02-27 | 2024-06-07 | 湘潭大学 | Heat pump evaporation device |
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Application publication date: 20161109 |