CN1963323A - Start-up method of air-conditioner in low temperature circumstance - Google Patents
Start-up method of air-conditioner in low temperature circumstance Download PDFInfo
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- CN1963323A CN1963323A CN 200510015944 CN200510015944A CN1963323A CN 1963323 A CN1963323 A CN 1963323A CN 200510015944 CN200510015944 CN 200510015944 CN 200510015944 A CN200510015944 A CN 200510015944A CN 1963323 A CN1963323 A CN 1963323A
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Abstract
It is about a starting method for air conditioner under low temperature environment. It comprises the No.1 phase that senses the tubing temperature through the indoor and outdoor temperature sensor after a period of running of the air conditioner. If the temperature sensed indoor tubing temperature in the No.1 phase is less than that of the No.1 temperature, and the outdoor tubing temperature less than the No.2 temperature, control the revolution of the outdoor fan of the air conditioner less than the preset revolution speed in the No.2 phase. If the revolution speed of the outdoor fan is less than the minimum reference value, indoor tubing temperature less than the No.3 temperature, stop the outdoor fan and running of the compressor in the No.3 phase. After certain, start the No.4 phase of their own respectively. Through sensing the outdoor and indoor tubing temperature of the air conditioner it can be used to adjust the revolution speed of the outdoor fan. Even with low temperature of the indoor tubing temperature, it can start the compressor.
Description
Technical field
The present invention relates to the startup method of air-conditioner, specifically is when indoor set pipe arrangement temperature is in low-temperature condition, also can start the start-up method of air-conditioner in low temperature circumstance of compressor.
Background technology
Fig. 1 is a common air-conditioning device schematic diagram.Fig. 2 is the refrigeration low-temperature perception curve map of prior art.
As shown in Figure 1, common branch bodily form air-conditioner is made of indoor set 10 and off-premises station 20 substantially.In the indoor set 10, be provided with indoor blowing fan 12 and indoor heat converter 11.In the off-premises station 20, be provided with compressor 24, fluid reservoir 23, outdoor heat converter 21, expansion valve 26, cross valve 25 and outdoor blowing fan 22.Indoor set 10 links to each other by the pipe arrangement 30 that allows refrigerant circulate with off-premises station 20.
Air-conditioner is by switching cross valve 25, and the loop direction of decision refrigerant carries out refrigerating operaton or heating operation.When carrying out refrigerating operaton, flow to the refrigerant of compressor 24 from fluid reservoir 23, compressed by compressor 24, by cross valve 25, inflow outdoor heat exchanger 21 obtains condensation.The refrigerant of condensation flows to indoor heat converter 11 by coolant piping 30 after obtaining expanding by expansion valve 26.Make refrigerant absorb the heat of air in the indoor heat converter 11 of flowing through, it is indoor to allow cold wind blow to.
As shown in Figure 2, air-conditioner when carrying out refrigerating operaton, if the compressor continuous operation more than 7 minutes X1, indoor tube temperature be lower than 0 ℃, then stop the work of compressor and outdoor machine fan.Afterwards, compressor quit work more than 3 minutes, and X2 when the indoor tube temperature is higher than 7 ℃ according to the indoor temperature condition, allows compressor and off-premises station carry out work again.
Be in X3 under the situation of running status at compressor, even the indoor tube temperature is lower than 0 ℃, compressor is still proceeded operation.
In addition, the indoor tube temperature is lower than 0 ℃, and compressor quits work, and after outdoor fan quits work, if the indoor tube temperature can't surpass X4 more than 7 ℃ when surpassing 3 minutes, then keep the closed condition of compressor.
Here, when air-conditioner carried out refrigerating operaton, if indoor set pipe arrangement temperature is lower than 0 ℃, then compressor and outdoor fan were stopped work; Under this low temperature environment, if high frequent ground On/Off, then overload can appear in compressor.
But, in the prior art, every uniform temperature, compressor all can be unlocked/cut out, and its load is very big, might cause air-conditioner to break down.
Summary of the invention
The technical problem to be solved in the present invention provides under a kind of air-conditioner in low temperature circumstance and also can work, and when reducing the suffered load of compressor, improves the start-up method of air-conditioner in low temperature circumstance of the operational efficiency of air-conditioner.
In order to solve the problems of the technologies described above, start-up method of air-conditioner in low temperature circumstance of the present invention comprises when air-conditioner work certain hour is above that the indoor and outdoor temperature sensor carries out the 1st stage of perception to the pipe arrangement temperature; If the indoor tube temperature of the 1st stage perception less than the 1st temperature A, outdoor piping temperature less than the 2nd temperature B, the 2nd stage then the rotating speed of outdoor unit fan of air conditioner is controlled less than the speed of setting rotating speed; If the outdoor machine fan rotating speed in the 2nd stage less than the 3rd temperature C, then stops the 3rd stage of outdoor machine fan and compressor operating less than minimum a reference value, indoor set pipe arrangement temperature; After in the 3rd stage, stopping the work of outdoor machine fan and compressor,, start both the 4th stages more respectively through certain hour.
In the 3rd stage, the outdoor machine fan rotating speed allows outdoor machine fan quit work during less than minimum a reference value, and till reaching more than the 3rd temperature C, allow outdoor machine fan to be lower than the speed rotation of setting rotating speed.
In the 3rd stage, when being lower than the 3rd temperature, indoor tube temperature X stops the work of compressor.
The 4th stage comprised, after compressor quit work 3 minutes, started the 1st process of outdoor machine fan; Reach the 4th temperature D when above as the indoor tube temperature, then start the 2nd process of compressor.
Start-up method of air-conditioner in low temperature circumstance of the present invention is by perception indoor set pipe arrangement temperature and off-premises station pipe arrangement temperature, according to the rotating speed of the outdoor machine fan of its adjustment; Even be in the situation of low temperature environment, also can start compressor, can reduce the suffered load of compressor greatly, improved the prestige of the product of compressor and air-conditioner.
Description of drawings
Fig. 1 is a common air-conditioning device schematic diagram.
Fig. 2 is the refrigeration low-temperature perception curve map of prior art.
Fig. 3 is a start-up method of air-conditioner in low temperature circumstance flow chart of the present invention.
Accompanying drawing critical piece symbol description:
10: indoor set 11: indoor heat converter
12: indoor blowing fan 20: off-premises station
21: outdoor heat converter 22: outdoor blowing fan
23: fluid reservoir 24: compressor
25: cross valve 26: expansion valve
30: coolant piping
The specific embodiment
Below, with reference to accompanying drawing, most preferred embodiment of the present invention is elaborated.
Except having the control part of low temperature environment startup method of the present invention, the structure of the miscellaneous part of air-conditioner is same as the prior art, therefore the explanation of omitting same section; The present invention is applicable to all air-conditioner kinds.
In addition, though air-conditioner carries out heating operation or refrigerating operaton by the loop direction of refrigerant, following situation of carrying out refrigerating operaton with air-conditioner is that example describes.
As shown in Figure 3, start-up method of air-conditioner in low temperature circumstance of the present invention comprises after the air-conditioner work certain hour that the indoor and outdoor temperature sensor carries out the 1st stage S100 step of perception to the pipe arrangement temperature; If the indoor tube temperature X of the 1st stage perception less than the 1st temperature A, outdoor piping temperature Y less than the 2nd temperature B, the 2nd stage S200-S350 step then the rotating speed of outdoor unit fan of air conditioner is controlled less than the speed of setting rotating speed; If the outdoor machine fan rotating speed in the 2nd stage during less than the 3rd temperature C, then stops the 3rd stage S351-S450 step of outdoor machine fan and compressor operating less than minimum a reference value, indoor tube X temperature; Stop the work of outdoor machine fan and compressor in the 3rd stage after, through certain hour, indoor tube temperature X reaches the 4th temperature D when above, starts both the 4th stage S500-S650 steps more respectively.
In the 1st stage, air-conditioner carries out the refrigerating operaton more than 5 minutes, by being connected the temperature sensor of indoor and outdoor machine, the temperature of indoor and outdoor pipe arrangement is carried out perception S100.
In the 2nd stage, whether less than the 1st temperature A, whether outdoor piping temperature Y judges S200 less than the 2nd temperature B to indoor tube temperature X.
Here, the 1st temperature A is 2 ℃, and the 2nd temperature B is 54 ℃.
Be more than minimum to the outdoor machine fan rotating speed that satisfies the 2nd stage condition then, judge S300.
When the rotating speed of outdoor machine fan is minimum when above, one-level one-level ground reduces the outdoor machine fan rotating speed, makes it to be lower than and sets rotation speed operation S350, carries out S100 and S200 step repeatedly.
In the 3rd stage,, stop the work S351 of outdoor machine fan, and till reaching more than the 3rd temperature C, allow indoor fan to be lower than the speed rotation of setting rotating speed when the rotating speed of outdoor machine fan during less than minimum a reference value.
After closing outdoor machine fan S351 in the 3rd stage, whether indoor tube temperature X is lower than the 3rd temperature C, judges S400.
If indoor tube temperature X during less than the 3rd temperature C, stops the work S450 of compressor.
The 3rd temperature C is-5 ℃.
In the 4th stage,, judge S500 to after stopping compressor operating, whether through 3 minutes.
If compressor quit work more than 3 minutes, then open outdoor machine fan, make it to carry out work, reach the 4th temperature D.S550 up to the indoor tube temperature.
In the 4th stage, be more than the 4th temperature D to the indoor tube temperature, judge S600.
If the indoor tube temperature is more than the 4th temperature D, then restart compressor S 650.
The 4th temperature D is 5 ℃.
In a word, low temperature environment startup method from S100 to S650 perception indoor tube temperature and outdoor piping temperature, according to the rotating speed of the outdoor machine fan of its adjustment; Reach-5 ℃ that are lower than original state up to the indoor tube temperature, restart compressor; So just can under low temperature environment, start compressor, reduce the suffered load of compressor greatly, allow air-conditioner carry out stable kind of refrigeration cycle.
Claims (7)
1. start-up method of air-conditioner in low temperature circumstance, it is characterized in that: after comprising air-conditioner work certain hour, the indoor and outdoor temperature sensor carries out the 1st stage of perception to the pipe arrangement temperature; If the indoor tube temperature of the 1st stage perception less than the 1st temperature A, outdoor piping temperature less than the 2nd temperature B, the 2nd stage then the rotating speed of outdoor unit fan of air conditioner is controlled less than the speed of setting rotating speed; If the outdoor machine fan rotating speed in the 2nd stage less than the 3rd temperature C, then stops the 3rd stage of outdoor machine fan and compressor operating less than minimum a reference value, indoor set pipe arrangement temperature; Through certain hour, start the 4th stage of the two more respectively.
2. start-up method of air-conditioner in low temperature circumstance according to claim 1 is characterized in that: in the 2nd stage, the 1st temperature A is 2 ℃, and the 2nd temperature B is 54 ℃.
3. start-up method of air-conditioner in low temperature circumstance according to claim 1, it is characterized in that: in the 3rd stage, the outdoor machine fan rotating speed is during less than minimum a reference value, allow outdoor machine fan quit work, and till reaching more than the 3rd temperature C, allow indoor machine fan to be lower than the speed rotation of setting rotating speed.
4. start-up method of air-conditioner in low temperature circumstance according to claim 1 is characterized in that: in the 3rd stage, stop the work of compressor when indoor tube temperature X is lower than the 3rd temperature.
5. according to claim 3 or 4 described start-up method of air-conditioner in low temperature circumstance, it is characterized in that: in the 3rd stage, the 3rd temperature C is-5 ℃.
6. start-up method of air-conditioner in low temperature circumstance according to claim 1 is characterized in that: the 4th stage comprised, after compressor quit work 3 minutes, started the 1st process of outdoor machine fan; Reach the 4th temperature D when above as indoor set pipe arrangement temperature, the 2nd process of then restarting compressor.
7. start-up method of air-conditioner in low temperature circumstance according to claim 6 is characterized in that: in the 2nd process, the 4th temperature D is 5 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510015944 CN1963323A (en) | 2005-11-08 | 2005-11-08 | Start-up method of air-conditioner in low temperature circumstance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510015944 CN1963323A (en) | 2005-11-08 | 2005-11-08 | Start-up method of air-conditioner in low temperature circumstance |
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| CN1963323A true CN1963323A (en) | 2007-05-16 |
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| CN 200510015944 Pending CN1963323A (en) | 2005-11-08 | 2005-11-08 | Start-up method of air-conditioner in low temperature circumstance |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100572962C (en) * | 2007-09-27 | 2009-12-23 | 宁波奥克斯空调有限公司 | The air-conditioner control method of a kind of energy cryogenic refrigeration |
| CN103162375A (en) * | 2011-12-13 | 2013-06-19 | 珠海格力电器股份有限公司 | Air conditioner and control method and device thereof |
| CN103528166A (en) * | 2013-10-17 | 2014-01-22 | 深圳麦克维尔空调有限公司 | Air conditioner system low-temperature starting method |
| CN103727629A (en) * | 2012-10-11 | 2014-04-16 | 珠海格力电器股份有限公司 | Air-cooled condensing unit starting method and device suitable for low-temperature environment |
| CN105115117A (en) * | 2015-08-21 | 2015-12-02 | 广东美的暖通设备有限公司 | Air conditioning unit and low temperature refrigerating control method and low temperature refrigerating control device thereof |
-
2005
- 2005-11-08 CN CN 200510015944 patent/CN1963323A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100572962C (en) * | 2007-09-27 | 2009-12-23 | 宁波奥克斯空调有限公司 | The air-conditioner control method of a kind of energy cryogenic refrigeration |
| CN103162375A (en) * | 2011-12-13 | 2013-06-19 | 珠海格力电器股份有限公司 | Air conditioner and control method and device thereof |
| CN103162375B (en) * | 2011-12-13 | 2015-09-30 | 珠海格力电器股份有限公司 | Air conditioner and control method and device thereof |
| CN103727629A (en) * | 2012-10-11 | 2014-04-16 | 珠海格力电器股份有限公司 | Air-cooled condensing unit starting method and device suitable for low-temperature environment |
| CN103727629B (en) * | 2012-10-11 | 2016-06-08 | 珠海格力电器股份有限公司 | Air-cooled condensing unit starting method and device suitable for low-temperature environment |
| CN103528166A (en) * | 2013-10-17 | 2014-01-22 | 深圳麦克维尔空调有限公司 | Air conditioner system low-temperature starting method |
| CN103528166B (en) * | 2013-10-17 | 2016-06-08 | 深圳麦克维尔空调有限公司 | The testing method of air-conditioning system cold-starting |
| CN105115117A (en) * | 2015-08-21 | 2015-12-02 | 广东美的暖通设备有限公司 | Air conditioning unit and low temperature refrigerating control method and low temperature refrigerating control device thereof |
| CN105115117B (en) * | 2015-08-21 | 2017-12-08 | 广东美的暖通设备有限公司 | Air-conditioner set and its cryogenic refrigeration control method and low-temperature refrigeration control device |
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Open date: 20070516 |