CN204026918U - A kind of air-conditioning system - Google Patents
A kind of air-conditioning system Download PDFInfo
- Publication number
- CN204026918U CN204026918U CN201420382031.3U CN201420382031U CN204026918U CN 204026918 U CN204026918 U CN 204026918U CN 201420382031 U CN201420382031 U CN 201420382031U CN 204026918 U CN204026918 U CN 204026918U
- Authority
- CN
- China
- Prior art keywords
- pressure
- air
- pressure switch
- condenser
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 76
- 239000003507 refrigerant Substances 0.000 claims abstract description 63
- 230000009471 action Effects 0.000 claims abstract description 23
- 238000004891 communication Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 8
- 230000008439 repair process Effects 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 3
- 231100000206 health hazard Toxicity 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The utility model relates to a kind of air-conditioning system, comprise and connect successively and form the compressor in loop, condenser, choke valve and evaporimeter, and the exhaust outlet of compressor is also serially connected with check valve, also comprise: be arranged between condenser and choke valve, and the first stop valve of the refrigerant exit pipeline of condenser can be closed; Be arranged at the first pressure switch between evaporimeter and compressor, when back pressure reaches the first default opening pressure, the first pressure switch action also makes compressor power-off; Be arranged between check valve and condenser, and the second stop valve of condenser refrigerant inlet pipeline can be closed.The utility model can reclaim refrigerant in system in time when leakage occurs system or air-conditioning needs keep in repair; avoid the discharge of refrigerant outwardly in environment; this not only can effective conservation of nature environment; also effectively eliminate the health hazard of refrigerant to maintenance personal simultaneously, and avoid refrigerant and waste the economic loss brought.
Description
Technical field
The utility model relates to air-conditioning manufacturing technology field, particularly relates to a kind of air-conditioning system.
Background technology
The critical pieces such as compressor, condenser, throttling arrangement and evaporimeter are generally comprised in air-conditioning system, these critical pieces are connected by refrigerant pipeline and form air-conditioning system, air-conditioning transport or operation of air conditioner process in, if leaking appears in the refrigerant pipeline connected between each critical piece, whole air-conditioning system will be caused to work on.
In current air-conditioning system, occur that leakage needs repairing once refrigerant pipeline, effectively cannot reclaim refrigerant, usually can only by intrasystem coolant discharging in external environment, this not only causes the serious waste of refrigerant, also can cause destruction to a certain extent to the ozone layer in air, and when maintenance personal carries out the maintenance of air-conditioning system, the refrigerant be discharged in external environment also can cause certain harm to the healthy of maintenance personal simultaneously.Air-conditioning after maintenance needs again in system, to fill refrigerant, and this also result in certain economic loss for user itself.
Therefore, how can reclaim in time intrasystem refrigerant when leakage occurs system or air-conditioning needs keep in repair, being discharged in external environment to avoid refrigerant is the technical problem that current those skilled in the art need solution badly.
Utility model content
The purpose of this utility model is to provide a kind of air-conditioning system, can reclaim in time the refrigerant retained in system when leakage occurs system or air-conditioning needs keep in repair, thus avoids refrigerant pollution environment, and reduces economic loss.
For solving the problems of the technologies described above, the utility model provides a kind of air-conditioning system, and comprise and connect successively and form the compressor in loop, condenser, choke valve and evaporimeter, and the exhaust outlet of described compressor is also serially connected with check valve, this air-conditioning system also comprises:
Be arranged between described condenser and described choke valve, and the first stop valve of the refrigerant exit pipeline of described condenser can be closed;
Be arranged at the first pressure switch in the return line between described evaporimeter and described compressor, when back pressure reaches the first default opening pressure, described first pressure switch action also makes described compressor power-off;
Be arranged between described check valve and described condenser, and the second stop valve of described condenser refrigerant inlet pipeline can be closed.
Preferably, also comprise:
Be arranged between described condenser and described choke valve, and the magnetic valve of the refrigerant exit pipeline of described condenser can be closed, described magnetic valve and air-conditioning closing key circuit communication, and when air-conditioning closing key is pressed, described magnetic valve power-off is closed;
Be arranged at the second pressure switch in the return line between described evaporimeter and described compressor, described second pressure switch and described air-conditioning closing key circuit communication, and when air-conditioning closing key is pressed, described second pressure switch is in running order, when described back pressure reaches the second default opening pressure, described second pressure switch action also makes described compressor power-off, and the described second default opening pressure is greater than the described first default opening pressure.
Preferably, the described first default opening pressure is P
1, and 0.1MPa≤P
1< 0.2MPa, the described second default opening pressure is P
2, and 0.2MPa≤P
2< 0.4MPa.
Preferably, also comprise the 3rd pressure switch in the return line that is arranged between described evaporimeter and described compressor, and when air-conditioning is in running order, when described back pressure is less than or equal to the default cut-in pressure of described 3rd pressure switch, described 3rd pressure switch action also makes described solenoid valves conducting; When described back pressure reaches the default opening pressure of described 3rd pressure switch, described 3rd pressure switch action also makes described magnetic valve power-off close, wherein said default opening pressure is greater than described default cut-in pressure, and described default cut-in pressure is greater than described second and presets opening pressure.
Preferably, also comprise on the gas exhaust piping that is arranged between described check valve and described second stop valve, and for the 4th pressure switch of air-conditioning system high voltage protective, and when described pressure at expulsion arrives upper limit cut off value, described 4th pressure switch action also makes described compressor power-off; When described pressure at expulsion is reduced to connection value, described 4th pressure switch action makes described compressor be energized.
Preferably, described condenser is water cooling type condenser.
When the refrigerant in air-conditioning occurs that leakage or air-conditioning need to keep in repair, first the first stop valve is closed, thus the refrigerant exit pipeline of condenser is closed, when the refrigerant exit pipeline of condensation is closed, whole air-conditioning system will be truncated, because now compressor is still in running status, therefore choke valve, evaporimeter and the refrigerant connected in the pipeline of these parts still can be sucked by compressor, and discharge from exhaust outlet complete compression in compressor after, the large I of back pressure reflects that side, suction port of compressor remains the number of refrigerant, when back pressure reaches the first default opening pressure, first pressure switch will carry out action, and make compressor out of service, intrasystem refrigerant will all have been arrived in condenser by compressor discharge, now close the second stop valve, thus the refrigerant inlet pipeline of condenser is closed, refrigerant is dammed within the condenser, thus the refrigerant recovering completed when secondary refrigerant leakage or air-conditioning maintenance.
As can be seen here; the air-conditioning system provided in the utility model can reclaim refrigerant in system in time when leakage occurs system or air-conditioning needs keep in repair; avoid the discharge of refrigerant outwardly in environment; this not only can effective conservation of nature environment; also effectively eliminate the health hazard of refrigerant to maintenance personal simultaneously, and avoid refrigerant and waste the economic loss brought.
Accompanying drawing explanation
The structural representation of the air-conditioning system that Fig. 1 provides for the utility model embodiment.
Wherein, 1 is compressor, and 2 is condenser, and 3 is choke valve, and 4 is evaporimeter, 5 is check valve, and 6 is the first stop valve, and 7 is the first pressure switch, and 8 is the second stop valve, and 9 is magnetic valve, 10 is the second pressure switch, and 11 is the 3rd pressure switch, and 12 is the 4th pressure switch, and 13 is blower fan.
Detailed description of the invention
Core of the present utility model is to provide a kind of air-conditioning system, can reclaim in time the refrigerant retained in system when leakage occurs system or air-conditioning needs keep in repair, thus avoids refrigerant pollution environment, and reduces economic loss.
In order to make those skilled in the art person understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 1, the structural representation of the air-conditioning system that Fig. 1 provides for the utility model embodiment.
The air-conditioning system provided in the utility model embodiment as shown in fig. 1, this air-conditioning system comprises connects successively and forms the compressor 1 in loop, condenser 2, choke valve 3 and evaporimeter 4, and the exhaust outlet of compressor 1 is also serially connected with check valve 5, also comprises in this air-conditioning system:
First stop valve 6, first stop valve 6 is arranged between condenser 2 and choke valve 3, and the first stop valve 6 can close the refrigerant exit pipeline of condenser 2;
First pressure switch 7, first pressure switch 7 is arranged in the return line between evaporimeter 4 and compressor 1, back pressure reach first preset opening pressure time, the first pressure switch 7 action, and make compressor 1 power-off (out of service) of connecting with the first pressure switch 7;
Second stop valve 8, second stop valve 8 is arranged between check valve 5 and condenser 2, and the second stop valve 8 can close the refrigerant inlet pipeline of condenser.
First stop valve 6 and the second stop valve 8 can control for manual rotation, and the stop valve that manual rotation controls is comparatively common in large-scale central air-conditioning, can certainly arrange the stop valve utilizing switch control rule in minitype air conditioner.
What needs were described is, in the utility model embodiment, so-called " can close " specifically refers to that the parts such as the first stop valve, the second stop valve and magnetic valve have this kind of function, not refer to that above-mentioned parts are in closed state all the time, above-mentioned each parts also have opening state.
When the refrigerant in air-conditioning occurs that leakage or air-conditioning need to keep in repair, first the first stop valve 6 is closed, thus the refrigerant exit pipeline of condenser 2 is closed, when the refrigerant exit pipeline of condenser 2 is closed, whole air-conditioning system will be truncated, because now compressor 1 is still in running status, therefore choke valve 3, evaporimeter 4 and the refrigerant connected in the pipeline of these parts still can be sucked by compressor 1, and discharge from exhaust outlet complete compression in compressor 1 after, the large I of back pressure reflects that compressor 1 entrance side remains the number of refrigerant, when back pressure reaches the first default opening pressure, first pressure switch 7 will carry out action, and make the compressor 1 of connecting with the first pressure switch 7 out of service.
After compressor 1 is out of service, intrasystem refrigerant will be all discharged in condenser 2 by compressor 1, now close the second stop valve 8, thus the refrigerant inlet pipeline of condenser 2 is closed, to be dammed in condenser 2 by refrigerant, thus complete the refrigerant recovering when secondary refrigerant leakage or air-conditioning maintenance.
In order to optimize the technical scheme in above-described embodiment further, technical at above-described embodiment of the air-conditioning system provided in the present embodiment, also comprises:
To be arranged between condenser 2 and choke valve 3 and the magnetic valve 9 of the refrigerant exit pipeline of condenser 2 can be closed, magnetic valve 9 and air-conditioning closing key circuit communication, and when air-conditioning closing key is pressed, power-off is closed by this magnetic valve 9;
Be arranged on the second pressure switch 10 in the return line between evaporimeter 4 and compressor 1, second pressure switch and air-conditioning closing key circuit communication, and when air-conditioning closing key is pressed, magnetic valve 9 is in closed condition, now the second pressure switch is access in system in running order, when back pressure reaches the second default opening pressure, the second pressure switch 10 action also makes compressor 1 power-off, and the second default opening pressure should be greater than the first default opening pressure.
What needs were described is, so-called air-conditioning closing key is pressed and not refers to that closing key is in down state always, and should be understood to power-off operation widely, and it is emphasized that, second pressure switch 10 is link with closing key, and after namely closing key is pressed, the second pressure switch 10 is just linked in system, this kind of design is mainly used in avoiding when refrigerant occurs that leakage or air-conditioning need repairing, and the situation that the second pressure switch 10 makes compressor 1 shift to an earlier date power-off occurs.
Under normal circumstances, be recovered completely in order to what ensure that refrigerant tries one's best, first presets opening pressure is being more than or equal to 0.1MPa, and value in the scope being less than 0.2MPa, the cut-in pressure of the first pressure switch 7 is being more than or equal to 0.2MPa and value in the scope being less than 0.25MPa, in order to air-conditioning after ensureing again to start shooting can enter duty fast, second presets opening pressure is being more than or equal to 0.25MPa, and value in the scope being less than 0.4MPa, the cut-in pressure of the second pressure switch 10 is being more than or equal to 0.4MPa and value in the scope being less than 0.45MPa.
What needs were described is, the numerical value enumerated listed by the present embodiment is use for referencial use only, according to the difference of refrigerant, first presets opening pressure, second presets opening pressure, the cut-in pressure of the first pressure switch 7 and the cut-in pressure all likely difference of the second pressure switch 10, but need ensure that the opening pressure of the first pressure switch 7 and the second pressure switch 10 is all less than the cut-in pressure of self, and the second default opening pressure is greater than the first default opening pressure.
Please refer to Fig. 1, when air-conditioning is in running order, in order to regulate the aperture of choke valve in air-conditioning 3, on the basis of above-described embodiment, the 3rd pressure switch 11 in the return line be arranged between evaporimeter 4 and compressor 1 is also comprised in the present embodiment, and when air-conditioning is in running status, when back pressure is less than or equal to the default cut-in pressure of the 3rd pressure switch 11, 3rd pressure switch 11 action, and make to be energized with the 3rd pressure switch 11 series electrical magnet valve 9 conducting, so that increase the aperture of choke valve 3, when back pressure reaches the default opening pressure of the 3rd pressure switch 11, 3rd pressure switch 11 action also makes magnetic valve 9 power-off close, so that reduce the aperture of choke valve 3, wherein the default opening pressure of the 3rd pressure switch is greater than default cut-in pressure, and in order to avoid the first pressure switch 7 is to the interference of this process, the cut-in pressure of the 3rd pressure switch 11 provided in the present embodiment is greater than first and presets opening pressure, more preferred, the cut-in pressure of the 3rd pressure switch 11 is greater than second and presets opening pressure.
Preferably, the default opening pressure of the 3rd pressure switch 11 is 0.61MPa-1.1MPa, default cut-in pressure is 0.4-0.6MPa, the numerical value enumerated in certain the present embodiment is use for referencial use only, according to the difference of refrigerant, the default opening pressure of the 3rd pressure switch 11 also may be different with default cut-in pressure, but need ensure that the default opening pressure of the 3rd pressure switch 11 is greater than its default cut-in pressure, and default cut-in pressure is greater than the first default opening pressure.
When running owing to just having started shooting at air-conditioning, a large amount of refrigerant in condenser 2 will by choke valve 3, now the aperture of choke valve 3 does not also reach balance, refrigerant in evaporimeter 4 can not evaporate completely, partially liq refrigerant flows to compressor 1, back pressure increases, when pressure reaches the default opening pressure of the 3rd pressure switch 11,3rd pressure switch 11 will carry out action, and magnetic valve 9 cuts out, to reduce the flow of the refrigerant flowed in evaporimeter 4, prevent liquid coolant from entering in compressor 1 and occur liquid hammer, after magnetic valve 9 power-off is closed, because air-conditioning system refrigerant circulation is cut off, now compressor 1 is still in running status, therefore choke valve 3, evaporimeter 4 and the refrigerant connected in the pipeline of these parts still can be sucked by compressor 1, refrigerant in return line constantly reduces, back pressure reduces gradually, and the Pressure Drop of return line between evaporimeter 4 and compressor 1 is when being low to moderate the default cut-in pressure of the 3rd pressure switch 11, 3rd pressure switch 11 will carry out action again, to make magnetic valve 9 be energized conducting, thus by magnetic valve 9 constantly opening and closing, the aperture of choke valve 3 is made to reach balance, to ensure the safe operation of compressor 1.
In order to ensure the safe operation of whole air-conditioning system further; on the basis of above-described embodiment; also comprise on the gas exhaust piping that is arranged between check valve 5 and the second stop valve 8 in the present embodiment; and for the 4th pressure switch 12 of air-conditioning system high voltage protective; as shown in fig. 1; when the pressure at expulsion of compressor 1 reaches the upper limit cut off value of the 4th pressure switch 12; 4th pressure switch 12 action also makes compressor 1 power-off of series connection with it; when pressure at expulsion is reduced to the connection value of the 4th pressure switch 12, the 4th pressure switch 12 action makes compressor 1 be energized.
This kind of design is mainly in order to protect the refrigeration pipe in air-conditioning system; the condenser 2 because of air-conditioning is avoided to cool deficiency; or severe running environment and cause the situation of the hypertonia in refrigeration pipe to occur; more preferred; if the pressure at expulsion of the compressor 1 that air-conditioner controller receives reaches the upper limit cut off value of the 4th pressure switch 12 repeatedly; and having controlled after compressor 1 carries out three break-makes repeatedly, air-conditioning will start no longer automatically, need fix a breakdown and manually boot air-conditioning equipment.
The air-conditioning system mentioned in above-described embodiment is especially for large-scale central air conditioner system, and the condenser of condenser 2 in air-conditioning system preferably water-cooling type.
Above air-conditioning system provided by the utility model is described in detail.Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (6)
1. an air-conditioning system, comprise and connect successively and form the compressor (1) in loop, condenser (2), choke valve (3) and evaporimeter (4), and the exhaust outlet of described compressor (1) is also serially connected with check valve (5), it is characterized in that, also comprise:
Be arranged between described condenser (2) and described choke valve (3), and first stop valve (6) of the refrigerant exit pipeline of described condenser (2) can be closed;
Be arranged at the first pressure switch (7) in the return line between described evaporimeter (4) and described compressor (1), when back pressure reaches the first default opening pressure, described first pressure switch (7) action also makes described compressor (1) power-off;
Be arranged between described check valve (5) and described condenser (2), and second stop valve (8) of described condenser (2) refrigerant inlet pipeline can be closed.
2. air-conditioning system according to claim 1, is characterized in that, also comprises:
Be arranged between described condenser (2) and described choke valve (3), and the magnetic valve (9) of the refrigerant exit pipeline of described condenser (2) can be closed, described magnetic valve (9) and air-conditioning closing key circuit communication, and when air-conditioning closing key is pressed, described magnetic valve (9) power-off is closed;
Be arranged at the second pressure switch (10) in the return line between described evaporimeter (4) and described compressor (1), described second pressure switch (10) and described air-conditioning closing key circuit communication, and when air-conditioning closing key is pressed, described second pressure switch (10) is in running order, when described back pressure reaches the second default opening pressure, described second pressure switch (10) action also makes described compressor (1) power-off, and the described second default opening pressure is greater than the described first default opening pressure.
3. air-conditioning system according to claim 2, is characterized in that, the described first default opening pressure is P
1, and 0.1MPa≤P
1< 0.2MPa, the described second default opening pressure is P
2, and 0.2MPa≤P
2< 0.4MPa.
4. air-conditioning system according to claim 2, it is characterized in that, also comprise the 3rd pressure switch (11) in the return line that is arranged between described evaporimeter (4) and described compressor (1), and when air-conditioning is in running order, when described back pressure is less than or equal to the default cut-in pressure of described 3rd pressure switch (11), described 3rd pressure switch (11) action also makes described magnetic valve (9) energising conducting; When described back pressure reaches the default opening pressure of described 3rd pressure switch (11), described 3rd pressure switch (11) action also makes described magnetic valve (9) power-off close, wherein said default opening pressure is greater than described default cut-in pressure, and described default cut-in pressure is greater than described second and presets opening pressure.
5. air-conditioning system according to claim 2, it is characterized in that, also comprise on the gas exhaust piping that is arranged between described check valve (5) and described second stop valve (8), and for the 4th pressure switch (12) of air-conditioning system high voltage protective, and when described pressure at expulsion arrives upper limit cut off value, described 4th pressure switch (12) action also makes described compressor (1) power-off; When described pressure at expulsion is reduced to connection value, described 4th pressure switch (12) action makes described compressor (1) be energized.
6. the air-conditioning system according to claim 1-5 any one, is characterized in that, described condenser (2) is water cooling type condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420382031.3U CN204026918U (en) | 2014-07-10 | 2014-07-10 | A kind of air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420382031.3U CN204026918U (en) | 2014-07-10 | 2014-07-10 | A kind of air-conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204026918U true CN204026918U (en) | 2014-12-17 |
Family
ID=52066766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420382031.3U Expired - Lifetime CN204026918U (en) | 2014-07-10 | 2014-07-10 | A kind of air-conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204026918U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288404A (en) * | 2015-05-19 | 2017-01-04 | Tcl空调器(中山)有限公司 | Hot water machine method for heating and controlling and device |
| CN104061659B (en) * | 2014-07-10 | 2017-02-22 | 深圳麦克维尔空调有限公司 | Air conditioning system |
| CN107166806A (en) * | 2017-06-14 | 2017-09-15 | 广东芬尼克兹节能设备有限公司 | The heat pump set system of refrigerant recovering can be carried out |
| CN109538794A (en) * | 2019-01-16 | 2019-03-29 | 珠海格力电器股份有限公司 | Pilot check valve and air conditioning system |
| CN111520895A (en) * | 2020-04-29 | 2020-08-11 | 珠海格力电器股份有限公司 | Control method of condensing fan and refrigerating unit |
-
2014
- 2014-07-10 CN CN201420382031.3U patent/CN204026918U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061659B (en) * | 2014-07-10 | 2017-02-22 | 深圳麦克维尔空调有限公司 | Air conditioning system |
| CN106288404A (en) * | 2015-05-19 | 2017-01-04 | Tcl空调器(中山)有限公司 | Hot water machine method for heating and controlling and device |
| CN107166806A (en) * | 2017-06-14 | 2017-09-15 | 广东芬尼克兹节能设备有限公司 | The heat pump set system of refrigerant recovering can be carried out |
| CN109538794A (en) * | 2019-01-16 | 2019-03-29 | 珠海格力电器股份有限公司 | Pilot check valve and air conditioning system |
| CN109538794B (en) * | 2019-01-16 | 2024-02-02 | 珠海格力电器股份有限公司 | Pilot-operated check valve and air conditioning system |
| CN111520895A (en) * | 2020-04-29 | 2020-08-11 | 珠海格力电器股份有限公司 | Control method of condensing fan and refrigerating unit |
| CN111520895B (en) * | 2020-04-29 | 2021-04-06 | 珠海格力电器股份有限公司 | Control method of condensing fan and refrigerating unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104061659A (en) | Air conditioning system and coolant recycling method thereof | |
| CN204026918U (en) | A kind of air-conditioning system | |
| CN102650476B (en) | Energy-saving water chilling unit and water chilling control method for same | |
| CN104990173A (en) | Air conditioner, and fireproof control method, controller and air conditioner system thereof | |
| CN101832621A (en) | Self-protection control method and self-protection control device of multi-online air-conditioning system | |
| CN106352489A (en) | Air conditioner fault detecting method and system | |
| CN102147125A (en) | Air conditioner and method for treating refrigerant thereof | |
| CN105180372A (en) | Method and device for controlling air conditioner | |
| CN104764164A (en) | Method for judging whether alternating-current contactor of air conditioner is adhered or not | |
| CN105258290A (en) | Air conditioner onboard group control system | |
| CN103940157A (en) | Air conditioner outdoor unit, air conditioner system and shutdown method of air conditioner system | |
| CN104566776A (en) | Control method and control device for water-cooling type air conditioning unit and water-cooling type air conditioning unit | |
| CN104534632A (en) | Micro-negative-pressure pipeline system and failure processing method | |
| CN103471210A (en) | Water system air conditioner and anti-freezing system and anti-freezing method of air-conditioning system | |
| CN101135487A (en) | Device for preventing compressor from start-up with liquid of multiple air-conditioning unit | |
| CN102235722A (en) | Explosionproof control method for multi-connected air conditioning unit during refrigerant recovery | |
| CN204902320U (en) | Compressor return oil system and air conditioner | |
| CN204880388U (en) | Air conditioner | |
| CN104848487A (en) | Intelligent maintenance control system and method | |
| CN201569087U (en) | Improved air conditioning equipment structure | |
| CN107270492B (en) | Air conditioner system control method and device and air conditioner | |
| CN104990318A (en) | Air-conditioning system | |
| CN102410669A (en) | Multi-connected air conditioner system for directly heating water by using compressor and working method of multi-connected air conditioner system | |
| CN206269319U (en) | Solve the device of air-conditioning heating overload | |
| KR20060069714A (en) | Over heating control method of compressor in air-conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |