CN103398516A - Air conditioner pressure maintaining start-up system and control method of air conditioner pressure maintaining start-up system - Google Patents
Air conditioner pressure maintaining start-up system and control method of air conditioner pressure maintaining start-up system Download PDFInfo
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- CN103398516A CN103398516A CN2013102907112A CN201310290711A CN103398516A CN 103398516 A CN103398516 A CN 103398516A CN 2013102907112 A CN2013102907112 A CN 2013102907112A CN 201310290711 A CN201310290711 A CN 201310290711A CN 103398516 A CN103398516 A CN 103398516A
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Abstract
The invention provides an air conditioner pressure maintaining start-up system and a control method of the air conditioner pressure maintaining start-up system. According to the air conditioner pressure maintaining start-up system, the pressure value or the temperature value before an air condition compressor shuts down and the time when the air condition compressor shuts down are recorded; meanwhile, an on-off mechanism is used for cutting off circulation of coolants; after the air condition compressor is started again, the contrast between the pressure values or the temperature values before and after the start-up is combined with the time when the air condition compressor shuts down to judge the on-off mode of the on-off mechanism so as to realize pressure maintaining start-up, and the effect of energy conservation is achieved.
Description
Technical field
The present invention relates to system and device and control method that a kind of air-conditioning pressurize starts.
Background technology
During operation of air conditioner, have the shutdown of normal operation and the shutdown of mal-operation,, for normal shutdown,, especially for fixed frequency air conditioner, when arriving the design temperature compressor, just shut down, the high-low pressure pressure reduction of before having set up will fade away.When again starting; set up again new pressure balance during startup, this process must need to consume certain energy, if the high-low pressure pressure differential before can keeping preferably shutting down; and the moment when being maintained to air-conditioning and again starting, will inevitably save certain energy., for improper shutdown, during the situation such as too low in unexpected power down, tripping operation, overload, load, also can cause the air-conditioning disorderly closedown.
Air-conditioning that can be present does not all carry out to compressor the device that pressurize starts, thus can not utilize the pressure differential before shutting down, also just can not energy savings.Start if carry out pressurize, energy-conservation effect is arranged, but while starting, large to the impact of compressor, the vibrating noise of system is very large.During especially for frequency-conversion air-conditioning system, the difficulty of startup is larger, and the vibrating noise during startup can be larger.But the currently available technology scheme all can not solve above-mentioned technical problem well.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of air-conditioning pressurize and starts system and control method thereof; force value or temperature value and downtime before this system log (SYSLOG) compressor of air conditioner is shut down; and basic (preferably simultaneously) simultaneously blocks the refrigerant circulation by on off mechanism; after compressor starts again; comparison by force value before and after starting or temperature value accomplishes that in conjunction with the on-off mode that judges on off mechanism downtime pressurize starts, and plays energy-conservation effect.
The technical solution used in the present invention is as follows: a kind of air-conditioning pressurize starts system, comprise compressor 1, condenser 5, evaporimeter 8, throttling arrangement 7, gas-liquid separator 14 and control device 10, it is characterized in that: also comprise the first sensor 13 and the second interior sensor 9 of condenser 5 that are arranged on compressor 1 outlet; Also comprise and be arranged between condenser 5 and throttling arrangement 7 between the first on off mechanism 6, compressor 1 and condenser 5 the 3rd on off mechanism 2 between the second on off mechanism 3 and compressor 1 and gas-liquid separator 14 entrances.
, as preferably, also comprise timing means 10.
, as preferably, also comprise the 3rd sensor 12 and cross valve 4 in evaporimeter 8.
As preferably, described sensor is pressure sensor.
As preferably, described sensor is temperature sensor.
As preferably, described on off mechanism is magnetic valve.
Control method based on described system is characterized in that:
Keep 2 to be closed condition when A, compressor 1 normal operation;
When B, compressor shutdown, the second sensor 9 records the force value of condenser 5 and deposits in the storage device of control device 10, simultaneously, timing means 11 starts timing, simultaneously, close successively the first on off mechanism 6 and the second on off mechanism 3, the time difference was less than or equal to 10 seconds;
C, when compressor 1 starts again, synchronously open the 3rd on off mechanism 2;
The second on off mechanism 3 and the first on off mechanism 6 are opened in D, delay, close simultaneously the 3rd on off mechanism 2, make cooling cycle system reach very soon stable state.
As preferably; the decision method that the time delay of the second on off mechanism 3 and the first on off mechanism 6 is opened in described delay is: when compressor 1 starts again; first sensor 13 real time record starting pressure values, when with shut down before the difference of force value of condenser 5 open the second on off mechanism 3 and the first on off mechanism 6 during less than or equal to desired level.
As preferably, also comprise, in described B, timing means 11 is recorded the downtime of compressor 1, if more than or equal to 1 hour, compressor 1 again starts and does not perform step C, directly opens simultaneously the second on off mechanism 3 and the first on off mechanism 6.
, as preferably, in described step B, close simultaneously the first on off mechanism 6 and the second on off mechanism 3.
Compared with prior art, the invention has the beneficial effects as follows: when air-conditioning system is shut down,, in again starting,, because being provided with the pressurize starting drive, can realize energy-conservation effect, simultaneously, can also realize the purpose that starts fast, can also play energy-conservation effect.
Description of drawings
Fig. 1 is the wherein system architecture schematic diagram of an embodiment of the present invention.
Fig. 2 is that pressurize embodiment illustrated in fig. 1 starts control flow chart.
The specific embodiment
, in order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Disclosed all features in this specification, except the feature of mutual eliminating, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing), unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or similar characteristics.
A kind of air-conditioning pressurize starts system, comprises compressor 1, condenser 5, evaporimeter 8, throttling arrangement 7, gas-liquid separator 14 and control device 10, also comprises the first sensor 13 and the second interior sensor 9 of condenser 5 that are arranged on compressor 1 outlet; Also comprise and be arranged between condenser 5 and throttling arrangement 7 between the first on off mechanism 6, compressor 1 and condenser 5 the 3rd on off mechanism 2 between the second on off mechanism 3 and compressor 1 and gas-liquid separator 14 entrances.
Also comprise timing means 10.
Also comprise the 3rd sensor 12 and cross valve 4 in evaporimeter 8.
Described sensor is pressure sensor.
Described sensor is temperature sensor.
Described on off mechanism is magnetic valve.
Based on the control method of described system,
Keep 2 to be closed condition when A, compressor 1 normal operation;
When B, compressor shutdown, the second sensor 9 records the force value of condenser 5 and deposits in the storage device of control device 10 (as being stored in RAM), simultaneously, timing means 11 starts timing, simultaneously, close successively the first on off mechanism 6 and the second on off mechanism 3, the time difference was less than or equal to 10 seconds;
C, when compressor 1 starts again, synchronously open the 3rd on off mechanism 2;
The second on off mechanism 3 and the first on off mechanism 6 are opened in D, delay, close simultaneously the 3rd on off mechanism 2, make cooling cycle system reach very soon stable state.This postpones the regular hour, by control device 10, is calculated and the completion logic judgement.
In described step B, close simultaneously the first on off mechanism 6 and the second on off mechanism 3.
During refrigeration, owing to being fixed frequency air conditioner, when air-conditioning reached the design temperature compressor and stops, the second sensor 9 was recorded force value or the temperature value of the condenser 5 before shutting down and is deposited in the RAM of control device, and timing means 11 starts timing simultaneously; At this moment, the first on off mechanism 6(such as magnetic valve), the turned off in synchronization circulation line, as cut off the entrance of throttling arrangement 7 and the path of evaporimeter 8, make this partial interior remain low pressure, while the second on off mechanism 3, turned off in synchronization circulation line, cold-producing medium in condenser 5 is no longer continued through capillary flow to evaporimeter 8, make like this in the pipeline of condenser 5 and still keep high pressure.When compressor started again, the condition switching in accordance with regulations of the 3rd on off mechanism 2, the second on off mechanism 3, the first on off mechanism 6, made cooling cycle system reach very soon stable state.Like this, both reduce the starting power of compressor 1, also shortened the time of build-up pressure balance, thereby reduced the energy consumption of air-conditioning.
The method for closing of described while first on off mechanism 6 and the second on off mechanism 3, can first close the first on off mechanism 6, then close the second on off mechanism 3, but belong to the basic while.The second on off mechanism 3 is closed the effect that can play protection compressor 1 after a while.
The decision method that the time delay of the second on off mechanism 3 and the first on off mechanism 6 is opened in described delay is: when compressor 1 starts again; first sensor 13 real time record starting pressure values, when with shut down before the difference of force value of condenser 5 unlatching the second on off mechanism 3 and the first on off mechanism 6 during less than or equal to desired level (occurrence determine according to actual condition).
While heating; change has occurred in the direction of flow of refrigerant; but realize that the principle that pressurize starts is the same; when compressor 1 starts again; remain and first open the 3rd on off mechanism 2; but at this moment the second on off mechanism 3 and the first on off mechanism 6 postpones the time of opening, and the force value of the 3rd sensor 12 of the setting of the evaporimeter 8 before shutting down with compressor 1 judges with the force value of first sensor 13, just opens when namely they are roughly suitable.But when the second on off mechanism 3 and the first on off mechanism 6 are opened, close the 3rd on off mechanism 2, to guarantee the normal operation of air-conditioning system.
While just because of compressor, again starting, first opened the 3rd on off mechanism 2, and the delay of the second on off mechanism 3 and the first on off mechanism 6 is opened, the pressure balance in the high-low pressure chamber while having guaranteed to start, make to start to be more prone to; Guarantee the smooth operation that compressor starts again, reduced startup noise and vibrations.
Also comprise; in described B, timing means 11 is recorded the downtime of compressor 1, if more than or equal to 1 hour; compressor 1 again starts and does not perform step C, directly opens simultaneously the second on off mechanism 3 and the first on off mechanism 6 makes cooling cycle system reach very soon stable state.
The effect of timing means 11, be the length that can record the downtime of compressor 1, and, by gathering the compressor length of 1 downtime, control the delay opening time of on-off system 3 and on-off system 6.This timing means can be included in control device 10, also can be independent of control device 10.In addition; can also export one by the length of 11 writing times of this timing means and whether need to carry out the selection function that pressurize starts; as too long in this downtime; as greater than 1 hour; or 2 hours; or over 12 hours; can cancel when compressor 1 starts again and carry out the pressurize start-up performance; directly start; can not open in advance the 3rd on off mechanism 2 during startup; also need not postpone to open the second on off mechanism 3 and the first on off mechanism 6, can open simultaneously the second on off mechanism 3 and the first on off mechanism 6.This timing means 11 can arrange a button cell or battery so that the clocking capability while completing power cut-off is completed simultaneously to the on off mechanism control operation.
Simultaneously, pressure sensor can change to temperature sensor, by temperature value relatively reached same effect.
Similarly,, for convertible frequency air-conditioner, also can adopt device of the present invention, complete pressurize and start.Be mainly for improper shutdown, during the situation such as too low in unexpected power down, tripping operation, overload, load, also can cause the convertible frequency air-conditioner disorderly closedown, when starting, the method and apparatus that just can adopt above-mentioned pressurize to start is completed the pressurize startup of air-conditioning.
Claims (10)
1. an air-conditioning pressurize starts system, comprise compressor (1), condenser (5), evaporimeter (8), throttling arrangement (7), gas-liquid separator (14) and control device (10), it is characterized in that: also comprise the first sensor 13 and interior the second sensor (9) of condenser (5) that are arranged on compressor (1) outlet; Also comprise and be arranged between condenser (5) and throttling arrangement (7) between the first on off mechanism (6), compressor (1) and condenser (5) the 3rd on off mechanism (2) between the second on off mechanism (3) and compressor (1) and gas-liquid separator (14) entrance.
2. system according to claim 1, is characterized in that: also comprise timing means (10).
3. system according to claim 2, is characterized in that: also comprise the 3rd sensor (12) and cross valve (4) in evaporimeter (8).
4. system according to claim 3, it is characterized in that: described sensor is pressure sensor.
5. system according to claim 3, it is characterized in that: described sensor is temperature sensor.
6. according to claim 4 or 5 described systems, it is characterized in that: described on off mechanism is magnetic valve.
7., based on the control method of the described system of claim 4, it is characterized in that:
A, compressor (1) keep (2) while normally moving be closed condition;
When B, compressor shutdown, the second sensor (9) records the force value of condenser (5) and deposits in the storage device of control device (10), simultaneously, timing means (11) starts timing, simultaneously, close successively the first on off mechanism (6) and the second on off mechanism (3), the time difference was less than or equal to 10 seconds;
C, compressor (1) while again starting, are synchronously opened the 3rd on off mechanism (2);
The second on off mechanism (3) and the first on off mechanism (6) are opened in D, delay, close simultaneously the 3rd on off mechanism (2), make cooling cycle system reach very soon stable state.
8. method according to claim 7; it is characterized in that: the decision method that the time delay of the second on off mechanism (3) and the first on off mechanism (6) is opened in described delay is: compressor (1) is while again starting; first sensor (13) real time record starting pressure value, when with shut down before the difference of force value of condenser (5) open the second on off mechanism (3) and the first on off mechanism (6) during less than or equal to desired level.
9. method according to claim 7; it is characterized in that: also comprise; in described step B; timing means (11) is recorded the downtime of compressor (1); if more than or equal to 1 hour; compressor (1) again starts and does not perform step C, directly opens simultaneously the second on off mechanism (3) and the first on off mechanism (6).
10. method according to claim 7, it is characterized in that: in described step B, the first on off mechanism (6) and the second on off mechanism (3) are closed simultaneously.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595171A (en) * | 2015-01-05 | 2015-05-06 | 珠海格力电器股份有限公司 | Compressor as well as low-pressure protection control method and low-pressure protection control device thereof |
| CN105299971A (en) * | 2014-07-25 | 2016-02-03 | 康唯特股份公司 | Compression refrigeration device and operation method thereof |
| CN105605836A (en) * | 2016-01-13 | 2016-05-25 | 青岛海尔股份有限公司 | Pressure maintaining method and device of refrigerator refrigerating system |
| CN105627515A (en) * | 2016-01-11 | 2016-06-01 | 海信（山东）空调有限公司 | Air conditioner control method, device and air conditioner |
| CN107270492A (en) * | 2017-07-21 | 2017-10-20 | 广东美的暖通设备有限公司 | Air conditioner system control method, device and air-conditioning |
| CN109282433A (en) * | 2018-09-11 | 2019-01-29 | 广东美的暖通设备有限公司 | Air conditioner and its control method and control device |
| CN109595739A (en) * | 2018-12-07 | 2019-04-09 | 四川长虹电器股份有限公司 | A kind of air-conditioning and its control method of having electronic expansion valve |
| CN109791010A (en) * | 2016-09-22 | 2019-05-21 | 开利公司 | Control method for transport refrigeration unit |
| CN110285594A (en) * | 2019-06-13 | 2019-09-27 | 合肥美的电冰箱有限公司 | Refrigeration system and its control method, refrigeration equipment, electronic equipment and medium |
| CN110425763A (en) * | 2018-11-20 | 2019-11-08 | 青岛海尔空调电子有限公司 | A kind of heat pump system |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299971A (en) * | 2014-07-25 | 2016-02-03 | 康唯特股份公司 | Compression refrigeration device and operation method thereof |
| CN104595171A (en) * | 2015-01-05 | 2015-05-06 | 珠海格力电器股份有限公司 | Compressor as well as low-pressure protection control method and low-pressure protection control device thereof |
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| US11118823B2 (en) | 2016-09-22 | 2021-09-14 | Carrier Corporation | Methods of control for transport refrigeration units |
| CN109791010B (en) * | 2016-09-22 | 2022-02-08 | 开利公司 | Control method for a transport refrigeration unit |
| CN109791010A (en) * | 2016-09-22 | 2019-05-21 | 开利公司 | Control method for transport refrigeration unit |
| CN107270492A (en) * | 2017-07-21 | 2017-10-20 | 广东美的暖通设备有限公司 | Air conditioner system control method, device and air-conditioning |
| CN109282433A (en) * | 2018-09-11 | 2019-01-29 | 广东美的暖通设备有限公司 | Air conditioner and its control method and control device |
| CN110425763A (en) * | 2018-11-20 | 2019-11-08 | 青岛海尔空调电子有限公司 | A kind of heat pump system |
| CN109595739A (en) * | 2018-12-07 | 2019-04-09 | 四川长虹电器股份有限公司 | A kind of air-conditioning and its control method of having electronic expansion valve |
| CN110285594A (en) * | 2019-06-13 | 2019-09-27 | 合肥美的电冰箱有限公司 | Refrigeration system and its control method, refrigeration equipment, electronic equipment and medium |
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| CN103398516B (en) | 2015-12-23 |
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Effective date of registration: 20190213 Address after: 621000, No. 35 Mian Xing Dong Road, hi tech Zone, Sichuan, Mianyang Patentee after: Sichuan Changhong Air-Coditioning Co., Ltd. Address before: 621000, No. 35 Mian Xing Dong Road, hi tech Zone, Sichuan, Mianyang Patentee before: Sichuan Changhong Electrical Appliance Co., Ltd. |