CN105571221A - Air conditioning system and control method thereof - Google Patents
Air conditioning system and control method thereof Download PDFInfo
- Publication number
- CN105571221A CN105571221A CN201510976331.3A CN201510976331A CN105571221A CN 105571221 A CN105571221 A CN 105571221A CN 201510976331 A CN201510976331 A CN 201510976331A CN 105571221 A CN105571221 A CN 105571221A
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- China
- Prior art keywords
- gas bypass
- hot gas
- bypass circuit
- air
- conditioning system
- 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.)
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Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003507 refrigerant Substances 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 230000006835 compression Effects 0.000 claims abstract description 16
- 238000007906 compression Methods 0.000 claims abstract description 16
- 230000001172 regenerating effect Effects 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 15
- 238000005057 refrigeration Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010257 thawing Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 66
- 229920006395 saturated elastomer Polymers 0.000 description 6
- 238000007599 discharging Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
Classifications
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- 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
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
-
- 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
- F25B41/00—Fluid-circulation arrangements
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioning system and a control method of the air conditioning system, wherein the air conditioning system is provided with a refrigerant compression cycle, the refrigerant compression cycle comprises a compressor, a gas-liquid separator, an expansion valve and an outdoor heat exchanger, the expansion valve is connected with the outdoor heat exchanger through a first pipeline, the refrigerant compression cycle also comprises a hot gas bypass loop, the first end of the hot gas bypass loop is communicated with an exhaust pipeline of the compressor, the second end of the hot gas bypass loop is connected with an air inlet pipeline of the gas-liquid separator, the pipeline of the hot gas bypass loop is provided with the first heat exchanger, and the first heat exchanger is wrapped outside the first pipeline. The air conditioning system and the control method of the air conditioning system effectively solve the problem of poor defrosting effect of the air conditioning system in the prior art.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to the control method of a kind of air-conditioning system and air-conditioning system.
Background technology
Air-conditioning system of the prior art (comprising air source heat pump) in the winter time heating operation time, easily there is the problem of frosting in indoor apparatus of air conditioner, frosting can cause the decline of performance.Owing to being limited to cost and technology, current most of air-conditioning system generally adopts cross valve reverse cycle defrost mode, but the weak effect of defrosting, and the problem of frosting can not get good solution.
Summary of the invention
The control method of a kind of air-conditioning system and air-conditioning system is provided, to solve the problem of air-conditioning system defrosting effect difference in prior art in the embodiment of the present invention.
For solving the problems of the technologies described above, the invention provides a kind of air-conditioning system, air-conditioning system has refrigerant compression cycle, refrigerant compression cycle comprises compressor, gas-liquid separator, expansion valve and outdoor heat exchanger, expansion valve is connected by the first pipeline with outdoor heat exchanger, refrigerant compression cycle also comprises hot gas bypass circuit, the first end of hot gas bypass circuit is communicated with on the gas exhaust piping of compressor, second end of hot gas bypass circuit is connected on the air inlet pipeline of gas-liquid separator, the pipeline of hot gas bypass circuit is provided with First Heat Exchanger, First Heat Exchanger is wrapped in the outside of the first pipeline.
Further, the pipeline of hot gas bypass circuit is also provided with magnetic valve, magnetic valve is between the first end and First Heat Exchanger of hot gas bypass circuit.
Further, the pipeline of hot gas bypass circuit is also provided with capillary, capillary is between second end and First Heat Exchanger of hot gas bypass circuit.
Further, the pipeline of gas bypass circulation is also provided with regenerative apparatus, regenerative apparatus is between second end and capillary of hot gas bypass circuit, and regenerative apparatus is wrapped in the hull outside of compressor.
Further, the pipeline of gas bypass circulation is also provided with check valve, check valve is between second end and regenerative apparatus of hot gas bypass circuit, and the direction of check valve conducting is circulated to the second end by the first end of hot gas bypass circuit.
Further, also comprise: environment temperature-sensitive bag, on heat exchanger disposed in the outdoor, environment temperature-sensitive bag is used for testing environment temperature; Pressure sensor, is arranged on the porch of gas-liquid separator.
Further, also comprise controller, controller is respectively at the electrical connection of environment temperature-sensitive bag, pressure sensor and magnetic valve, and controller can the opening or cutting out of Controlling solenoid valve.
Further, also comprise air-breathing temperature-sensitive bag, air-breathing temperature-sensitive bag is arranged on the exit of gas-liquid separator.
According to another aspect of the present invention, provide a kind of control method of air-conditioning system, air-conditioning system is above-mentioned air-conditioning system, comprises the following steps: detect air-conditioning system and be in refrigeration mode or heating mode; When air-conditioning system is in refrigeration mode, the hot gas bypass circuit of air-conditioning system is closed; When air-conditioning system is in heating mode, judge whether environment temperature is less than the first predetermined temperature; If not, then hot gas bypass circuit is closed; When environment temperature is less than the first predetermined temperature, judge whether the saturation temperature that suction pressure of compressor is corresponding is less than environment temperature and the second predetermined temperature sum; If not, then hot gas bypass circuit is closed; If so, then hot gas bypass circuit is opened.
Further, after unlatching hot gas bypass circuit, the time that hot gas bypass circuit is held open state was at least greater than for first scheduled time.
Further, after unlatching hot gas bypass circuit, continue to judge whether environment temperature is less than the first predetermined temperature, and continue to judge whether the saturation temperature that suction pressure of compressor is corresponding is less than environment temperature and the second predetermined temperature sum; When environment temperature is greater than the first predetermined temperature, or when the saturation temperature that suction pressure of compressor is corresponding is greater than environment temperature and the second predetermined temperature sum, after hot gas bypass circuit continues opening at least the second scheduled time, close hot gas bypass circuit.
Further, in air-conditioning system hot gas bypass circuit pipeline on be also provided with magnetic valve, magnetic valve is between the first end and First Heat Exchanger of hot gas bypass circuit; By the upper electric-opening hot gas bypass circuit of Controlling solenoid valve; Hot gas bypass circuit is closed by the power down of Controlling solenoid valve.
Further, after magnetic valve powers on, at least running after the 3rd scheduled time can power down; After magnetic valve goes offline, at least can power on after the scheduled time of interval the 4th.
Apply technical scheme of the present invention, by increasing a hot gas bypass circuit in refrigerant compression cycle, the compressor air-discharging of small part is incorporated into pipeline by hot gas bypass circuit, then heated to the first pipeline after outdoor heat exchanger throttling in air-conditioning system by the compressor air-discharging of high temperature, because the refrigerant after throttling in refrigerant compression cycle is gas-liquid two-phase, need heat absorption just can become saturated vapor, so pass through after the refrigerant heating in the first pipeline, the heat that refrigerant absorbs from external environment just can reduce accordingly, thus suppress air-conditioner set frosting, and then effectively improve the effect suppressing frosting, extend the cycle of defrost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the air-conditioning system of the embodiment of the present invention.
Fig. 2 is the schematic flow sheet of the control method of the air-conditioning system of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but not as a limitation of the invention.
Shown in Figure 1, according to embodiments of the invention, provide a kind of air-conditioning system, air-conditioning system has refrigerant compression cycle, refrigerant compression cycle comprises compressor 10, gas-liquid separator 20, expansion valve 30 and outdoor heat exchanger 40, expansion valve 30 is connected by the first pipeline 50 with outdoor heat exchanger 40, refrigerant compression cycle also comprises hot gas bypass circuit 60, the first end of hot gas bypass circuit 60 is communicated with on the gas exhaust piping of compressor 10, second end of hot gas bypass circuit 60 is connected on the air inlet pipeline of gas-liquid separator 20, the pipeline of hot gas bypass circuit 60 is provided with First Heat Exchanger 61, First Heat Exchanger 61 is wrapped in the outside of the first pipeline 50.
By increasing a hot gas bypass circuit in refrigerant compression cycle, the compressor air-discharging of small part is incorporated into pipeline by hot gas bypass circuit, then heated to the first pipeline after outdoor heat exchanger throttling in air-conditioning system by the compressor air-discharging of high temperature, because the refrigerant after throttling in refrigerant compression cycle is gas-liquid two-phase, need heat absorption just can become saturated vapor, so pass through after the refrigerant heating in the first pipeline, the heat that refrigerant absorbs from external environment just can reduce accordingly, thus suppress air-conditioner set frosting, and then effectively improve the effect suppressing frosting, extend the cycle of defrost.
In order to control the opening and closing of hot gas bypass circuit 60, reach the effect effectively suppressing frosting, the pipeline of hot gas bypass circuit 60 is also provided with magnetic valve 62, and magnetic valve 62 is between the first end and First Heat Exchanger 61 of hot gas bypass circuit 60.Can open or closedown magnetic valve according to the ruuning situation of air-conditioning, and then open or close hot gas bypass circuit 60, when air-conditioner set refrigerating operaton, closed electromagnetic valve; When air-conditioner set heating operation, when reaching predetermined condition, magnetic valve is opened, and hot gas bypass circuit starts to play function, suppresses the frosting of air-conditioner set.
The pipeline of hot gas bypass circuit 60 is also provided with capillary 63, and capillary 63 is between second end and First Heat Exchanger 61 of hot gas bypass circuit 60, and capillary 63 is used to carry out throttling to hot gas bypass circuit.
The pipeline of gas bypass circulation 60 is also provided with regenerative apparatus 64, and regenerative apparatus 64 is between second end and capillary 63 of hot gas bypass circuit 60, and regenerative apparatus 64 is wrapped in the hull outside of compressor 10.When air-conditioner set heating operation, when the environment temperature that air-conditioner set detects is greater than or equal to a predetermined value, magnetic valve 62 cuts out, in this case, the waste heat that regenerative apparatus 64 distributes for collecting compressor, the refrigerant in hot gas bypass circuit is high temperature and high pressure gas, is become the liquid of high normal pressure and temperature by the refrigerant after heating throttling, again by entering regenerative apparatus after capillary-compensated, becoming saturated vapor after heat absorption and entering compressor air entry.
The pipeline of gas bypass circulation 60 is also provided with check valve 65, check valve 65 is between second end and regenerative apparatus 64 of hot gas bypass circuit 60, the direction of check valve 65 conducting is circulated to the second end by the first end of hot gas bypass circuit 60, and check valve 65 is used to prevent the coolant backflow of gas-liquid separator from returning regenerative apparatus.
Air-conditioning system also comprises environment temperature-sensitive bag 71 and pressure sensor 72, and on environment temperature-sensitive bag 71 heat exchanger 40 disposed in the outdoor, environment temperature-sensitive bag 71 is for testing environment temperature, and pressure sensor 72 is arranged on the porch of gas-liquid separator 20.The outdoor condenser of outdoor heat exchanger is provided with environment temperature-sensitive bag 71, current environment temperature T can be provided
outer shroud; Pressure sensor 72 is low pressure sensor, provides suction pressure of compressor P, is obtained the saturation temperature T of its correspondence by this pressure of inspiration(Pi)
saturated.
Air-conditioning system also comprises controller, and controller is electrically connected respectively at environment temperature-sensitive bag 71, pressure sensor 72 and magnetic valve 62, and controller can the opening or cutting out of Controlling solenoid valve 62.Air-conditioning system also comprises air-breathing temperature-sensitive bag 73, and air-breathing temperature-sensitive bag 73 is arranged on the exit of gas-liquid separator 20.Air-breathing temperature-sensitive bag 73 is used to provide the suction temperature T of compressor
air-breathing, for unit judges that the air intake duct degree of superheat provides foundation.
In the present embodiment, the specific implementation process of controller to magnetic valve is as follows:
(1), air-conditioner set refrigerating operaton time, closed electromagnetic valve.
(2), air-conditioner set heating operation:
1, during heating operation, when unit detects T
outer shroud>=a DEG C, closed electromagnetic valve.Regenerative apparatus collects the waste heat that compressor distributes.A DEG C is a preset temperature value.
2, during heating operation, T is worked as
outer shroud< a DEG C, when T being detected
saturated< T
outer shroud+ T
aafter continuing for some time (as 1 minute), magnetic valve is opened, and hot gas bypass circuit 60 conducting is also opened, and air-conditioner set enters the operational mode suppressing frosting.T
abeing the first compensation for temperature angle value, is carry out according to the ruuning situation of air-conditioner set the temperature value preset.
3, under suppressing the operational mode of frosting, when T being detected
saturated>=T
outer shroud+ T
bcontinue for some time (as 5 minutes) or T
outer shroud>=a DEG C continues for some time (as 5 minutes), closed electromagnetic valve, and hot gas bypass circuit is closed, and air-conditioner set exits the operational mode suppressing frosting.T
bbe the second compensation for temperature angle value, be carry out according to the ruuning situation of air-conditioner set the temperature value preset, the first compensation for temperature angle value is different from the second compensation for temperature angle value.
Present invention also offers a kind of control method of air-conditioning system, as shown in Figure 2, air-conditioning system is the air-conditioning system of above-described embodiment, comprises the following steps:
Step S10: detect air-conditioning system and be in refrigeration mode or heating mode;
When air-conditioning system is in refrigeration mode, perform step S21: the hot gas bypass circuit of air-conditioning system is closed;
When air-conditioning system is in heating mode, perform step S22: judge whether environment temperature is less than the first predetermined temperature; If not, then step S31 is performed: close hot gas bypass circuit;
When environment temperature is less than the first predetermined temperature, perform step S41: judge the saturation temperature T that suction pressure of compressor is corresponding
saturatedwhether be less than environment temperature T
outer shroudwith the second predetermined temperature T
asum.If not, then step S51 is performed: close hot gas bypass circuit.
If so, then step S52 is performed: open hot gas bypass circuit.
Further preferably, after unlatching hot gas bypass circuit, the time that hot gas bypass circuit is held open state was at least greater than for first scheduled time.First scheduled time can carry out arranging or changing according to the running status of air-conditioner set, as 1 minute.
After unlatching hot gas bypass circuit, continue to judge environment temperature T
outer shroudwhether be less than the first predetermined temperature, and judge the saturation temperature T that suction pressure of compressor is corresponding
saturatedwhether be less than environment temperature and the 3rd predetermined temperature T
bit.；
When environment temperature is greater than the first predetermined temperature, or saturation temperature corresponding to suction pressure of compressor is greater than environment temperature T
outer shroudwith the 3rd predetermined temperature T
bwhen sum, after hot gas bypass circuit continues opening at least the second scheduled time (as 5 minutes), close hot gas bypass circuit.
In air-conditioning system hot gas bypass circuit pipeline on be also provided with magnetic valve, magnetic valve between the first end and First Heat Exchanger of hot gas bypass circuit, by the upper electric-opening hot gas bypass circuit of Controlling solenoid valve; Hot gas bypass circuit is closed by the power down of Controlling solenoid valve.
The time interval demand fulfillment requirement of magnetic valve power on and off, after magnetic valve powers on, at least running after the 3rd scheduled time (as 5 minutes) can power down; After magnetic valve goes offline, at least can power on after interval the 4th scheduled time (as 10 minutes).
Certainly, be more than the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art, under the prerequisite not departing from its general principles, can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (13)
1. an air-conditioning system, described air-conditioning system has refrigerant compression cycle, described refrigerant compression cycle comprises compressor (10), gas-liquid separator (20), expansion valve (30) and outdoor heat exchanger (40), described expansion valve (30) is connected by the first pipeline (50) with outdoor heat exchanger (40), it is characterized in that, described refrigerant compression cycle also comprises hot gas bypass circuit (60), the first end of described hot gas bypass circuit (60) is communicated with on the gas exhaust piping of described compressor (10), second end of described hot gas bypass circuit (60) is connected on the air inlet pipeline of described gas-liquid separator (20), the pipeline of described hot gas bypass circuit (60) is provided with First Heat Exchanger (61), described First Heat Exchanger (61) is wrapped in the outside of described first pipeline (50).
2. air-conditioning system according to claim 1, it is characterized in that, the pipeline of described hot gas bypass circuit (60) is also provided with magnetic valve (62), described magnetic valve (62) is positioned between the first end of described hot gas bypass circuit (60) and described First Heat Exchanger (61).
3. air-conditioning system according to claim 1, it is characterized in that, the pipeline of described hot gas bypass circuit (60) is also provided with capillary (63), described capillary (63) is positioned between the second end of described hot gas bypass circuit (60) and described First Heat Exchanger (61).
4. air-conditioning system according to claim 3, it is characterized in that, the pipeline of described gas bypass circulation (60) is also provided with regenerative apparatus (64), described regenerative apparatus (64) is positioned between the second end of described hot gas bypass circuit (60) and described capillary (63), further, described regenerative apparatus (64) is wrapped in the hull outside of compressor (10).
5. air-conditioning system according to claim 4, it is characterized in that, the pipeline of described gas bypass circulation (60) is also provided with check valve (65), described check valve (65) is positioned between the second end of described hot gas bypass circuit (60) and described regenerative apparatus (64), and the direction of described check valve (65) conducting is circulated to the second end by the first end of described hot gas bypass circuit (60).
6. air-conditioning system according to claim 2, is characterized in that, also comprises:
Environment temperature-sensitive bag (71), is arranged on described outdoor heat exchanger (40), and described environment temperature-sensitive bag (71) is for testing environment temperature;
Pressure sensor (72), is arranged on the porch of described gas-liquid separator (20).
7. air-conditioning system according to claim 6, it is characterized in that, also comprise controller, described controller is respectively at described environment temperature-sensitive bag (71), described pressure sensor (72) and described magnetic valve (62) electrical connection, and described controller can control opening or cutting out of described magnetic valve (62).
8. air-conditioning system according to claim 6, is characterized in that, also comprises air-breathing temperature-sensitive bag (73), and described air-breathing temperature-sensitive bag (73) is arranged on the exit of described gas-liquid separator (20).
9. a control method for air-conditioning system, described air-conditioning system is the air-conditioning system described in the claims 1 to 8, it is characterized in that, comprises the following steps:
Detect air-conditioning system and be in refrigeration mode or heating mode;
When air-conditioning system is in refrigeration mode, the hot gas bypass circuit of described air-conditioning system is closed;
When air-conditioning system is in heating mode, judge whether environment temperature is less than the first predetermined temperature; If not, then described hot gas bypass circuit is closed;
When environment temperature is less than the first predetermined temperature, judge whether the saturation temperature that suction pressure of compressor is corresponding is less than described environment temperature and the second predetermined temperature sum; If not, then described hot gas bypass circuit is closed;
If so, then described hot gas bypass circuit is opened.
10. control method according to claim 9, is characterized in that, after the described hot gas bypass circuit of unlatching, the time that described hot gas bypass circuit is held open state was at least greater than for first scheduled time.
11. control methods according to claim 10, it is characterized in that, after the described hot gas bypass circuit of unlatching, continue to judge whether described environment temperature is less than the first predetermined temperature, and continue to judge whether the saturation temperature that described suction pressure of compressor is corresponding is less than described environment temperature and the second predetermined temperature sum;
When described environment temperature is greater than the first predetermined temperature, or when the saturation temperature that described suction pressure of compressor is corresponding is greater than described environment temperature and the second predetermined temperature sum, described hot gas bypass circuit closes described hot gas bypass circuit after continuing opening at least the second scheduled time.
12. control methods according to claim 9, is characterized in that, the pipeline of hot gas bypass circuit described in described air-conditioning system is also provided with magnetic valve, and described magnetic valve is between the first end and described First Heat Exchanger of described hot gas bypass circuit;
By hot gas bypass circuit described in the upper electric-opening that controls described magnetic valve; Described hot gas bypass circuit is closed by the power down controlling described magnetic valve.
13. control methods according to claim 12, is characterized in that, after described magnetic valve powers on, at least running after the 3rd scheduled time can power down; After described magnetic valve goes offline, at least can power on after the scheduled time of interval the 4th.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510976331.3A CN105571221A (en) | 2015-12-21 | 2015-12-21 | Air conditioning system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510976331.3A CN105571221A (en) | 2015-12-21 | 2015-12-21 | Air conditioning system and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105571221A true CN105571221A (en) | 2016-05-11 |
Family
ID=55881639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510976331.3A Pending CN105571221A (en) | 2015-12-21 | 2015-12-21 | Air conditioning system and control method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN105571221A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178924A (en) * | 2017-05-23 | 2017-09-19 | 华中科技大学 | A kind of accumulation of heat is not shut down except defrosting system and air-conditioning |
| CN107192012A (en) * | 2017-05-03 | 2017-09-22 | 青岛海尔空调电子有限公司 | Splitting heat pump air conditioner and the method for delaying its frosting |
| CN108413560A (en) * | 2018-02-05 | 2018-08-17 | 青岛海尔空调器有限总公司 | A kind of air conditioner indoor unit self-cleaning system and its control method |
| CN112032826A (en) * | 2020-08-27 | 2020-12-04 | 青岛海尔空调电子有限公司 | Air conditioning unit and its control method |
| WO2021012781A1 (en) * | 2019-07-25 | 2021-01-28 | 青岛海尔空调器有限总公司 | Air conditioner |
| CN113251522A (en) * | 2021-05-25 | 2021-08-13 | 珠海格力电器股份有限公司 | Air conditioning unit and control method thereof |
| CN114234470A (en) * | 2021-12-27 | 2022-03-25 | 珠海格力电器股份有限公司 | Air conditioning system and air conditioning control method |
| CN115435447A (en) * | 2021-06-01 | 2022-12-06 | 上海海立电器有限公司 | Hot gas bypass defrosting air conditioning system and control method |
| CN115717787A (en) * | 2022-11-09 | 2023-02-28 | 珠海格力电器股份有限公司 | Air conditioner control method and device and air conditioner |
| CN118499963A (en) * | 2024-07-18 | 2024-08-16 | 威利浩特新能源(常州)有限公司 | Energy-storage type high-temperature cascade heat pump device |
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Application publication date: 20160511 |