CN106482410B - Refrigeration compressor start-up and shut-down control method - Google Patents
Refrigeration compressor start-up and shut-down control method Download PDFInfo
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- CN106482410B CN106482410B CN201610930470.7A CN201610930470A CN106482410B CN 106482410 B CN106482410 B CN 106482410B CN 201610930470 A CN201610930470 A CN 201610930470A CN 106482410 B CN106482410 B CN 106482410B
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- Prior art keywords
- compressor
- refrigeration compressor
- control method
- time
- ton
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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
- F25B49/00—Arrangement or mounting of control or safety devices
-
- 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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0251—Compressor control by controlling speed with on-off operation
Abstract
The present invention provides a kind of refrigeration compressor start-up and shut-down control method, the control method includes: S1, sets Ton as the The shortest operation time of refrigeration compressor, sets Toff as the Minimum Idle Time of refrigeration compressor；S2, start timing when refrigeration compressor starting, it is t that record refrigeration compressor, which was run to the time of shutdown,；S3, as t < Ton, control refrigeration compressor downtime meets Toff and can just be again started up, and n times runing time t < Ton occurs when compressor is interior when one is small, then locks compressor shutdown toAfter restart, wherein 10 >=n >=1, the toFor -2 hours 0.5 hour using this control method can start-stop time be excessive in one hour to avoid compressor, it is ensured that compressor reliability service extends the compressor service life.
Description
Technical field
The present invention relates to a kind of compressor control methods, more particularly to a kind of refrigeration compressor start-up and shut-down control method.
Background technique
It is typically all at present 6min to the restriction of compressor The shortest operation time in refrigeration industry, most short dwell time is
3min.For freezer condensation unit, if reaching object library temperature, even if compressor does not run to 6min, also it is eager to excel
System operation 6min, until low-voltage variation shutdown occurs in unit.It is above-mentioned open 6 stop 3 compressor control mode and not applicable freezing machine
Group.If user's type selecting is excessive, unit is likely to out less than 6min with regard to low-voltage variation, and 3min is opened again after protection, compressor frequency
Numerous start-stop, on-off frequency is more than the limit that compression function is born in one hour, and the final compressor service life will shorten significantly.
Summary of the invention
Based on this, it is necessary to influence the compressor service life for high frequent start and stop present in current refrigeration compressor
The problem of, one kind is provided and avoids high frequent start and stop, extends the compressor control method in compressor service life.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of refrigeration compressor start-up and shut-down control method, the control method include:
S1, Ton is set as the The shortest operation time of refrigeration compressor, when setting Toff as the most short shutdown of refrigeration compressor
Between；
S2, start timing when refrigeration compressor starting, it is t that record refrigeration compressor, which was run to the time of shutdown,；
S3, as t < Ton, control refrigeration compressor downtime meets Toff and can just be again started up, when compressor is one
There is n times runing time t < Ton in hour, then locks compressor shutdown toAfter restart, wherein 10 >=n >=1, the toFor
- 2 hours 0.5 hour.
The Ton is the shortest time for meeting refrigeration compressor operation oil return in one of the embodiments,.
The Toff is the Minimum Idle Time that refrigeration compressor allows in one of the embodiments,.
The n is 3,5 or 7 in one of the embodiments,.
The t in one of the embodiments,oIt is 1 hour.
The Ton=3min in one of the embodiments, the Toff=3min.
The most short startup-shutdown time T of refrigeration compressor, the T > (Ton+Toff) are set in one of the embodiments,；
As Ton≤t≤T-Toff, control refrigeration compressor downtime, which meets (T-t), can be just again started up.
In one of the embodiments, as t >=T-Toff, control refrigeration compressor downtime meets Toff could again
Secondary starting.
The T=60min/N in one of the embodiments, wherein N is to allow startup-shutdown in refrigeration compressor one hour
Number.
The N=6 in one of the embodiments, the T=10min.
The beneficial effects of the present invention are: when refrigeration compressor start-up and shut-down control method of the present invention sets compressor most short operation
Between Ton and Minimum Idle Time Toff, wherein Ton meets the shortest time of compressor oil return, and the setting of this time is greatly decreased
Traditional control method bring unit low-voltage variation halting problem, when the time t that compressor is run to shutdown is less than Ton, one
As be unit low-voltage variation shut down, protection shut down after must remove failure manually, and control downtime meet Toff could again
Secondary booting needs to lock one section of compressor if compressor occurs that the case where time t is less than Ton is run multiple times in one hour
Can just it restart after time.Using this control method can start-stop time be excessive in a short time to avoid compressor, it is ensured that pressure
Contracting machine reliability service extends the compressor service life.
Detailed description of the invention
Fig. 1 is the control flow schematic diagram of one embodiment of refrigeration compressor start-up and shut-down control method of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, by the following examples, it and combines attached
Figure, is further elaborated refrigeration compressor start-up and shut-down control method of the present invention.It should be appreciated that described herein specific
Embodiment only to explain the present invention, is not intended to limit the present invention.
It is typically all at present 6min to the restriction of compressor The shortest operation time in refrigeration industry, Minimum Idle Time is
3min.For freezer condensation unit, if reaching object library temperature, even if compressor does not run to 6min, also it is eager to excel
System operation 6min, until low-voltage variation shutdown occurs in unit.It is above-mentioned open 6 stop 3 compressor control mode and not applicable freezing machine
Group.If user's type selecting is excessive, unit is likely to out less than 6min with regard to low-voltage variation, and 3min is opened again after protection, compressor frequency
Numerous start-stop, on-off frequency is more than the limit that compression function is born in one hour, and the final compressor service life will shorten significantly.
To solve the above-mentioned problems, the present invention provides a kind of refrigeration compressor start-up and shut-down control methods, comprising:
S1, Ton is set as the The shortest operation time of refrigeration compressor, when setting Toff as the most short shutdown of refrigeration compressor
Between；
S2, start timing when refrigeration compressor starting, it is t that record refrigeration compressor, which was run to the time of shutdown,；
S3, as t < Ton, control refrigeration compressor downtime meets Toff and can just be again started up, when compressor is one
There is n times runing time t < Ton in hour, then locks compressor shutdown toAfter restart, wherein 10 >=n >=1, the toFor
- 2 hours 0.5 hour.
Refrigeration compressor start-up and shut-down control method of the present invention sets compressor The shortest operation time Ton and Minimum Idle Time
Toff, when the time t that compressor is run to shutdown is less than Ton, usually unit low-voltage variation is shut down, and protection is necessary after shutting down
Failure is removed manually, and controls downtime and meets Toff and could be switched on again, if occurring repeatedly fortune in compressor one hour
Row time t is less than the case where Ton, then can just restart after needing to lock compressor for a period of time.It can using this control method
To avoid compressor, start-stop time is excessive in a short time, it is ensured that compressor reliability service extends the compressor service life.
Shown in Figure 1, refrigeration compressor start-up and shut-down control method of the present invention provides on the basis of the above embodiment
Another preferred embodiment.
Set the most short startup-shutdown time T of refrigeration compressor, the T > (Ton+Toff)；
As t < Ton, control refrigeration compressor downtime, which meets Toff, can be just again started up, when compressor is small one
When it is interior there is n times runing time t < Ton, then lock compressor shutdown toAfter restart, wherein 10 >=n >=1, the toIt is 0.5
- 2 hours hours.
As Ton≤t≤T-Toff, control refrigeration compressor downtime, which meets (T-t), can be just again started up.
As t >=T-Toff, control refrigeration compressor downtime, which meets Toff, can be just again started up.
Above-mentioned control method implements different control methods for different runing time t, avoids compressor in the short time
Interior frequent start-stop, causes compressor damage.Wherein Ton is the shortest time for meeting refrigeration compressor operation oil return, and Toff is system
The Minimum Idle Time that cold compressor allows, T=60min/N, wherein N is to allow startup-shutdown in refrigeration compressor one hour
Number.For example, refrigeration compressor allows startup-shutdown times N to be 6 times within a hour, then T=60min/N=10min, refrigeration are pressed
The The shortest operation time Ton of contracting machine is 3min, and the Minimum Idle Time Toff of compressor is 3min, T > (Ton+Toff).
When refrigeration compressor runing time t is that 2min is shut down, due to t < Ton, it is full to control refrigeration compressor downtime
Sufficient Toff=3min can be just again started up, and when one is small, 3 runing time t < Ton of interior appearance, then it is small to lock compressor shutdown 1
When after restart；Or 5 runing time t < Ton of interior appearance when one is small, then it is opened again after locking compressor shutdown 1.5 hours
It is dynamic.
When refrigeration compressor runing time t is that 4min is shut down, due to Ton≤t≤T-Toff, controls refrigeration compressor and stop
The machine time, which meets (T-t)=6min, can just be again started up.
When refrigeration compressor runing time t is that 9min is shut down, due to t >=T-Toff, when controlling refrigeration compressor shutdown
Between meet Toff=3min and can just be again started up.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of refrigeration compressor start-up and shut-down control method, which is characterized in that the control method includes:
S1, Ton is set as the The shortest operation time of refrigeration compressor, set Toff as the Minimum Idle Time of refrigeration compressor；
S2, start timing when refrigeration compressor starting, it is t that record refrigeration compressor, which was run to the time of shutdown,；
S3, as t < Ton, control refrigeration compressor downtime meets Toff and can just be again started up, when compressor is when one is small
Inside there is n times runing time t < Ton, then locks compressor shutdown toAfter restart, wherein 10 >=n >=1, the toIt is small for 0.5
When -2 hours.
2. control method according to claim 1, which is characterized in that the Ton is to meet refrigeration compressor to run oil return
Shortest time.
3. control method according to claim 1, which is characterized in that the Toff is most short the stopping of refrigeration compressor permission
The machine time.
4. control method according to claim 1, which is characterized in that the n is 3,5 or 7.
5. control method according to claim 1, which is characterized in that the toIt is 1 hour.
6. control method according to any one of claims 1 to 5, which is characterized in that the setting most short startup-shutdown of refrigeration compressor
Time T, the T > (Ton+Toff)；
As Ton≤t≤T-Toff, control refrigeration compressor downtime, which meets (T-t), can be just again started up.
7. control method according to claim 6, which is characterized in that as t >=T-Toff, control refrigeration compressor is shut down
Time, which meets Toff, can just be again started up.
8. control method according to claim 6, which is characterized in that the Ton=3min, the Toff=3min.
9. control method according to claim 6, which is characterized in that the T=60min/N, wherein N is refrigeration compressor
Allow startup-shutdown number in one hour.
10. control method according to claim 9, which is characterized in that the N=6, the T=10min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610930470.7A CN106482410B (en) | 2016-10-31 | 2016-10-31 | Refrigeration compressor start-up and shut-down control method |
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| CN201610930470.7A CN106482410B (en) | 2016-10-31 | 2016-10-31 | Refrigeration compressor start-up and shut-down control method |
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| CN106482410A CN106482410A (en) | 2017-03-08 |
| CN106482410B true CN106482410B (en) | 2019-03-19 |
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| CN108332343A (en) * | 2017-07-21 | 2018-07-27 | 广东美的暖通设备有限公司 | Control method, control device and the air conditioner of air conditioner |
| CN108397865A (en) * | 2018-03-06 | 2018-08-14 | 青岛海尔空调器有限总公司 | A kind of control method and device of the air-conditioning system of Applied Electrochemistry press |
| CN112728820A (en) * | 2020-12-31 | 2021-04-30 | 新奥数能科技有限公司 | Water chilling unit and start-stop control method and device thereof |
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| US4292813A (en) * | 1979-03-08 | 1981-10-06 | Whirlpool Corporation | Adaptive temperature control system |
| CN1590889A (en) * | 2003-08-25 | 2005-03-09 | 乐金电子(天津)电器有限公司 | Compressor operation control method of air conditioner |
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