CN110873486A - Absorption type solution defrosting system and air conditioner - Google Patents
Absorption type solution defrosting system and air conditioner Download PDFInfo
- Publication number
- CN110873486A CN110873486A CN201911205461.1A CN201911205461A CN110873486A CN 110873486 A CN110873486 A CN 110873486A CN 201911205461 A CN201911205461 A CN 201911205461A CN 110873486 A CN110873486 A CN 110873486A
- Authority
- CN
- China
- Prior art keywords
- solution
- absorption
- generator
- heat exchanger
- condenser
- 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
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 73
- 238000010257 thawing Methods 0.000 title claims abstract description 41
- 239000006096 absorbing agent Substances 0.000 claims abstract description 25
- 239000003507 refrigerant Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 15
- 238000009835 boiling Methods 0.000 claims description 14
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 6
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- HTJJPCOQQINRDG-UHFFFAOYSA-L calcium azane dichloride Chemical compound N.[Cl-].[Cl-].[Ca+2] HTJJPCOQQINRDG-UHFFFAOYSA-L 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 1
- 230000005494 condensation Effects 0.000 abstract description 11
- 238000009833 condensation Methods 0.000 abstract description 11
- 238000001704 evaporation Methods 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 81
- 238000000034 method Methods 0.000 description 7
- 238000004378 air conditioning Methods 0.000 description 4
- 238000005485 electric heating Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention provides an absorption type solution defrosting system which comprises an absorber, a solution pump, a generator and a solution condenser, wherein the absorber, the solution pump, the generator and the solution condenser are sequentially connected, the generator is arranged in an indoor unit heat exchanger, the solution condenser is arranged in an outdoor unit heat exchanger, and absorption type solution is arranged in the absorber; the solution pump can pump the absorption solution into the generator, the generator can drive the evaporation absorption solution by using a refrigerant of the indoor unit heat exchanger, and the evaporated gaseous absorption solution can enter the solution condenser. After the system is adopted, compared with the prior art, the invention has the following advantages: the absorption type solution defrosting system is simple in loop arrangement, defrosting of the outdoor unit heat exchanger is achieved by using the absorption type solution, and the influence on the conventional circulating system of the air conditioner is small; on the other hand, the condensation heat of the heat exchanger of the indoor unit is used as a driving heat source, a compressor is not needed to compress a refrigerant, the power consumption is low, and the solution circulation is safer and more reliable.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an absorption type solution defrosting system and an air conditioner.
Background
When the air conditioner operates in a heating mode under a low-temperature condition in winter, a frosting phenomenon is often generated on a coil pipe of a condenser, the heating effect of the air conditioner is poorer and poorer along with the thicker and thicker frost layer, and the air conditioner needs to enter a defrosting mode to operate for defrosting.
During defrosting operation of the air conditioner in the prior art, a common method is that a unit uses a four-way reversing valve to reverse to switch a heating mode into a cooling mode to defrost an outdoor unit, and the method has the following defects: on one hand, the shutdown defrosting affects the heating capacity of the air conditioner; on the other hand, the four-way reversing valve is frequently switched, noise is generated, and the service life of the four-way reversing valve is influenced. Therefore, in the prior art, a non-stop defrosting method appears, which comprises a heating loop and a double-channel defrosting loop, but in the method, the defrosting loop also utilizes the condensing agent of the air conditioner, an additional reversing valve is needed to be switched repeatedly, the loop arrangement and the absorption type solution defrosting system are more complicated, and the heating system of the air conditioning system is easily influenced.
Disclosure of Invention
The invention solves the problems that the loop setting and the control of the double-channel defrosting method in the prior art are complex and easily influence the heating system of the air conditioning system.
In order to solve the above problems, a first aspect of the present invention provides an absorption type solution defrosting system, including an absorber, a solution pump, a generator, and a solution condenser, which are connected in sequence, wherein the generator is disposed in an indoor unit heat exchanger, the solution condenser is disposed in an outdoor unit heat exchanger, and an absorption type solution is disposed in the absorber; the solution pump can pump the absorption solution into the generator, the generator can drive and evaporate the absorption solution by utilizing a refrigerant of an indoor unit heat exchanger, and the evaporated gaseous absorption solution can enter the solution condenser.
After the system is adopted, compared with the prior art, the invention has the following advantages: the absorption type solution defrosting system is simple in loop arrangement, defrosting of the outdoor unit heat exchanger is achieved by using the absorption type solution, and the influence on the conventional circulating system of the air conditioner is small; on the other hand, the condensation heat released by the refrigerant of the indoor unit heat exchanger is used as a driving heat source, a compressor is not needed to compress the refrigerant, the power consumption is low, and the solution circulation is safer and more reliable.
Further, a liquid storage tank is arranged between the generator and the solution condenser; the liquid storage tank is arranged to realize sufficient gas-liquid separation of the evaporated absorption solution.
Further, the absorber is connected with the liquid storage tank, and liquid absorption solution in the liquid storage tank can flow back to the absorber; with the above structure, the evaporated liquid absorption solution can be returned to the absorber.
Further, a first throttling device is arranged between the absorber and the solution condenser; the absorption solution condensed by the solution condenser can be returned to the absorber through a throttling device.
Further, the absorption solution defrosting system further comprises an auxiliary driving heat source which is arranged near the generator; the auxiliary driving heat source is arranged to provide driving heat when the condensation heat of the indoor unit heat exchanger cannot drive the absorption solution to evaporate.
Further, the auxiliary driving heat source is an electric heating device; the selected electric heating device has low cost and simple control.
Further, the generator is connected with the indoor unit heat exchanger in parallel, and the solution condenser is connected with the outdoor unit heat exchanger in parallel; by adopting the structure, the absorption type solution defrosting system is independent relative to an air conditioning heating system, and the influence on a conventional circulating system of the air conditioner is further reduced.
Further, the absorption solution comprises a high boiling point working medium and a low boiling point working medium; the heat exchange efficiency can be improved by using the mixed solution with low boiling point and high boiling point, and the defrosting efficiency of the system is further improved.
Further, the absorption solution can be an ammonia water solution, a lithium bromide water solution or a calcium chloride-ammonia solution.
The invention provides an air conditioner, which comprises the absorption solution defrosting system.
Drawings
FIG. 1 is a schematic diagram showing the connection of the components of an absorption solution defrost system and a conventional circulation system of an air conditioner according to an embodiment of the present invention;
11-an absorber; 12-a solution pump; 13-a generator; 14-a liquid storage tank; 15-solution condenser; 16-a first throttling means; 17-auxiliary driving heat source; 21-indoor heat exchanger; 22-outdoor unit heat exchanger; 23-second throttling means; 24-compressor.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1, which is a schematic diagram of a connection relationship between an absorption type solution defrosting system and each component in a conventional circulation system of an air conditioner according to an embodiment of the present invention, the embodiment of the present invention discloses an absorption type solution defrosting system, which is arranged in an operation system of an air conditioner, the operation system of the air conditioner further includes a conventional air conditioner circulation system for a cooling and heating cycle of the air conditioner, and specifically, the conventional air conditioner circulation system includes a compressor 24, an indoor unit heat exchanger 21, a second throttling device 23, and an outdoor unit heat exchanger 22, which are sequentially connected.
In the above embodiment, the absorption type solution defrosting system includes an absorber 11, a solution pump 12, a generator 13 and a solution condenser 15, which are connected in sequence, wherein the generator 13 is disposed in the indoor heat exchanger 21, so that the generator 13 can utilize condensation heat of the indoor heat exchanger 21, where the condensation heat refers to heat generated by the indoor heat exchanger 21 in a heating condition by condensation and heat dissipation; the solution condenser 15 is disposed in the outdoor heat exchanger 22, so that the solution condenser 15 condenses and releases heat, thereby achieving a defrosting effect on the outdoor heat exchanger 22.
Preferably, the generator 13 is arranged in parallel with the indoor heat exchanger 21, and the solution condenser 15 is arranged in parallel with the outdoor heat exchanger 22, so that the absorption type solution defrosting system is independent from the air conditioning heating system by adopting the structure, and the influence of the absorption type solution defrosting system on the conventional circulating system of the air conditioner is reduced.
Further, an absorption solution is arranged in the absorber 11, the solution pump 12 can pump the absorption solution into the generator 13, the generator 13 can drive evaporation of the absorption solution by using condensation heat of the indoor unit heat exchanger 21, and the evaporated gaseous absorption solution can enter the solution condenser 15.
After the system with the structure is adopted, compared with the prior art, the system has the following advantages: the absorption type solution defrosting system is simple in loop arrangement, defrosting of the outdoor unit heat exchanger is achieved by using the absorption type solution, and the influence on the conventional circulating system of the air conditioner is small; on the other hand, the condensation heat released by the refrigerant of the indoor unit heat exchanger is used as a driving heat source, a compressor is not needed for compressing the refrigerant, the power consumption is low, and the solution circulation is safer and more reliable; in addition, the system does not need to utilize a reversing valve to change directions frequently, the service life of the reversing valve is ensured, and noise reduction is realized to a certain extent.
Preferably, the absorption solution comprises a high boiling point working substance and a low boiling point working substance. A liquid storage tank 14 is arranged between the generator 13 and the solution condenser 15, the absorber 11 is also connected with the liquid storage tank 14, and meanwhile, a first throttling device 16 is also arranged between the absorber 11 and the solution condenser 15.
Specifically, after the absorption solution enters the generator 13, the generator 13 absorbs heat to evaporate the absorption solution to form a gas-liquid mixture, the gas-liquid mixture enters the liquid storage tank 14, the liquid storage tank 14 can enable the evaporated absorption solution to realize sufficient gas-liquid separation, wherein high-temperature and high-pressure gas formed by the low-boiling point working medium enters the solution condenser 15, and liquid absorption solution formed by the high-boiling point working medium flows back to the absorber 11.
Further, the high-temperature and high-pressure gas entering the solution condenser 15 is condensed into a liquid state by the solution condenser 15, heat release and defrosting of the outdoor unit heat exchanger 22 can be realized in the process, and the condensed absorption solution returns to the absorber 13 through the first throttling device 16, so that a complete defrosting cycle is completed.
Above, adopt the absorption formula solution that high boiling point working medium and low boiling point working medium mix, get into the absorber 11 after the solution condensation of low boiling point working medium in, the solution absorption of the high boiling point working medium in the absorber 11 realizes exothermic, and this part of heat can reduce the required condensation heat of drive absorption formula solution evaporation in the generator 13, realizes having improved heat exchange efficiency, and then improves the defrosting efficiency of system.
Preferably, the absorption solution can be an ammonia water solution, a lithium bromide water solution or a calcium chloride-ammonia solution according to different specific use environments.
In addition, the absorption solution defrosting system further comprises an auxiliary driving heat source 17, which is arranged near the generator 13, and the auxiliary driving heat source 17 is arranged to provide additional driving heat when the condensation heat provided by the indoor unit heat exchanger 21 cannot drive the absorption solution to evaporate.
Specifically, the auxiliary driving heat source 17 is an electric heating device, and the electric heating device has low cost and is easy to control.
The invention also provides an air conditioner, which comprises the absorption type solution defrosting system, when the air conditioner operates in the heating mode or operates in the heating mode for a certain time, the solution pump 12 is controlled to be started, so that the absorption type solution in the absorber 11 enters the generator 13 to be evaporated, the evaporated high-temperature and high-pressure gas flows into the solution condenser 15 to be condensed and release heat, and the defrosting of the outdoor unit heat exchanger 22 is realized. In the process, the absorption type solution defrosting system realizes defrosting without stopping, improves the heating capacity of the air conditioner under the defrosting condition, and further improves the comfort of users; in addition, the absorption type solution defrosting system has small influence on the conventional circulating system of the air conditioner, and also has the advantages of low power consumption and safe and reliable solution circulation.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The absorption type solution defrosting system is characterized by comprising an absorber (11), a solution pump (12), a generator (13) and a solution condenser (15) which are sequentially connected, wherein the generator (13) is arranged in an indoor unit heat exchanger (21), the solution condenser (15) is arranged in an outdoor unit heat exchanger (22), and the absorber (11) is filled with absorption type solution; the solution pump (12) can pump the absorption solution into the generator (13), the generator (13) can drive the absorption solution to evaporate by using a refrigerant of an indoor unit heat exchanger (21), and the evaporated gaseous absorption solution can enter the solution condenser (15).
2. The absorption solution defrost system according to claim 2, wherein a liquid reservoir (14) is provided between the generator (13) and the solution condenser (15).
3. The absorption solution defrost system of claim 3 wherein said absorber (11) is connected to said reservoir (14) and liquid absorption solution in said reservoir (14) is returned to said absorber (11).
4. The absorption solution defrost system according to claim 1, characterized in that a first throttle device (16) is arranged between the absorber (11) and the solution condenser (15).
5. The absorption solution defrost system of claim 1 further comprising an auxiliary drive heat source (17) disposed adjacent the generator (13).
6. The absorption solution defrost system of claim 5 wherein the auxiliary drive heat source (17) is an electrical heating device.
7. The absorption solution defrost system of claim 1 wherein the generator (13) is arranged in parallel with the indoor heat exchanger (21) and the solution condenser (15) is arranged in parallel with the outdoor heat exchanger (22).
8. The absorption solution defrost system of claim 1 wherein the absorption solution includes a high boiling point working fluid and a low boiling point working fluid.
9. The absorption solution defrost system of claim 8 wherein the absorption solution may be an aqueous ammonia solution, an aqueous lithium bromide solution, or a calcium chloride-ammonia solution.
10. An air conditioner comprising the absorption solution defrost system of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911205461.1A CN110873486B (en) | 2019-11-29 | 2019-11-29 | Absorption solution defrosting system and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911205461.1A CN110873486B (en) | 2019-11-29 | 2019-11-29 | Absorption solution defrosting system and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110873486A true CN110873486A (en) | 2020-03-10 |
| CN110873486B CN110873486B (en) | 2024-07-26 |
Family
ID=69717317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911205461.1A Active CN110873486B (en) | 2019-11-29 | 2019-11-29 | Absorption solution defrosting system and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110873486B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201561564U (en) * | 2009-11-06 | 2010-08-25 | 清华大学 | Direct combustion air source absorption type heat pump hot water device |
| CN103090593A (en) * | 2011-11-07 | 2013-05-08 | 北京科技大学 | Heat pump cycle system, heat pump cycle method and vaporization system |
| CN104034083A (en) * | 2014-06-23 | 2014-09-10 | 周永奎 | Self-driven thermocompression heat pump cooling method and device |
| CN104819594A (en) * | 2015-04-30 | 2015-08-05 | 南京理工大学 | Frozen regenerated solution defrost heat pump unit |
| CN107218644A (en) * | 2017-05-19 | 2017-09-29 | 东南大学 | A kind of series connection Frostless air-source heat pump system based on regeneration recuperation of heat |
| CN211782122U (en) * | 2019-11-29 | 2020-10-27 | 宁波奥克斯电气股份有限公司 | Absorption type solution defrosting system and air conditioner |
-
2019
- 2019-11-29 CN CN201911205461.1A patent/CN110873486B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201561564U (en) * | 2009-11-06 | 2010-08-25 | 清华大学 | Direct combustion air source absorption type heat pump hot water device |
| CN103090593A (en) * | 2011-11-07 | 2013-05-08 | 北京科技大学 | Heat pump cycle system, heat pump cycle method and vaporization system |
| CN104034083A (en) * | 2014-06-23 | 2014-09-10 | 周永奎 | Self-driven thermocompression heat pump cooling method and device |
| US20170191707A1 (en) * | 2014-06-23 | 2017-07-06 | Yongkui ZHOU | Self-driving heat compression-type heat pump refrigerating method |
| CN104819594A (en) * | 2015-04-30 | 2015-08-05 | 南京理工大学 | Frozen regenerated solution defrost heat pump unit |
| CN107218644A (en) * | 2017-05-19 | 2017-09-29 | 东南大学 | A kind of series connection Frostless air-source heat pump system based on regeneration recuperation of heat |
| CN211782122U (en) * | 2019-11-29 | 2020-10-27 | 宁波奥克斯电气股份有限公司 | Absorption type solution defrosting system and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110873486B (en) | 2024-07-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11029045B2 (en) | Heat-pump driven desiccant regeneration | |
| CN110525168B (en) | New energy automobile secondary circuit passenger cabin and battery motor electric control heat management system | |
| US5896747A (en) | Vehicular absorption air conditioning process and system utilizing engine coolant waste heat | |
| CN105402979A (en) | Novel refrigerator refrigerating system achieving non-azeotropic mixed refrigerant segregation circulation | |
| US20200326106A1 (en) | Climate-Control System With Absorption Chiller | |
| JP2002100891A (en) | Cooling system for heating element ! electromagnetic wave shielding material | |
| CN205137703U (en) | Air -conditioner | |
| US9909791B2 (en) | Combined vapor absorption and mechanical compression cycle design | |
| JP2011242017A (en) | Air conditioning device for vehicle | |
| JP2007120872A (en) | Hybrid heat pump system | |
| CN211782122U (en) | Absorption type solution defrosting system and air conditioner | |
| CN101240951A (en) | Dual adsorption type cooling cycle system | |
| CN104890474A (en) | Vehicular air conditioner and vehicle | |
| CN110873486B (en) | Absorption solution defrosting system and air conditioner | |
| CN101319832A (en) | High-efficiency air source heat pump suitable for cold surroundings | |
| CN110701664A (en) | Wide-ring-temperature multi-stage water outlet variable-frequency air energy cascade type heat engine system and working method thereof | |
| CN111609578B (en) | Small-sized multi-mode solar-assisted household air conditioning system | |
| CN201032311Y (en) | Highly effective air source heat pump with flexible defrosting function | |
| CN110500688B (en) | Dilution type refrigeration heat pump system for air conditioning by utilizing dilution heat | |
| CN210070285U (en) | Low-temperature enthalpy-increasing heat pump system | |
| CN102788446A (en) | Adsorption type auxiliary heat pump refrigerating system driven by condensation heat | |
| CN208382613U (en) | A kind of microminiature ammonia-sodium sulfocyanate absorption type air-conditioner | |
| CN208382603U (en) | A kind of refrigeration system and electronic refrigerator car | |
| CN206269414U (en) | A kind of auxiliary hot enthalpy increasing heat pump system | |
| JP2005331147A (en) | Power generating and air-conditioning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |