CN105423666B - Positive displacement compressor system control method and control device - Google Patents
Positive displacement compressor system control method and control device Download PDFInfo
- Publication number
- CN105423666B CN105423666B CN201510854811.2A CN201510854811A CN105423666B CN 105423666 B CN105423666 B CN 105423666B CN 201510854811 A CN201510854811 A CN 201510854811A CN 105423666 B CN105423666 B CN 105423666B
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- Prior art keywords
- positive displacement
- displacement compressor
- compressor system
- frequency
- preset time
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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
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control 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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
-
- 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
- F25B2600/0253—Compressor control by controlling speed with variable speed
Abstract
The invention provides a kind of positive displacement compressor system control method and control device.Included according to the positive displacement compressor system control method of the present invention：Before positive displacement compressor system starts to target operating condition or is switched to target operating condition, make positive displacement compressor system in low frequency or intermediate frequency operation preset time.According to the positive displacement compressor system control method and control device of the present invention, by before positive displacement compressor system starts to target operating condition or is switched to target operating condition, make positive displacement compressor system in low frequency or intermediate frequency operation preset time, operating mode is prevented to be mutated, reducing causes the hidden danger of compressor damage or poor starting during the switching of positive displacement compressor system, so that positive displacement compressor system operation is more reliable.
Description
Technical field
The present invention relates to compressor assembly control field, in particular to a kind of positive displacement compressor system control method
And control device.
Background technology
At present because the energy and environmental problem are more and more prominent, north heating is heated using collective, can burn substantial amounts of coal or
The low-grade energies such as person's natural gas, exacerbate atmosphere pollution and energy resource consumption.If, can be significantly using air source heat pump heat supply
Alleviate problem above.But because northern winter temperature is very low, ordinary hot heat pump heating amount and efficiency substantially reduce, and have a strong impact on heat
The application of pump.Based on above reason, positive displacement compressor arises at the historic moment.Held according to different operating mode loads by adjusting different compressors
Product ratio, so as to reach the requirement of different heating capacities.
Positive displacement compressor is divided into two cylinder single stage compress or three cylinder Two-stage Compressions at present；For three cylinder double-stage compressors,
It is very big due to loading directly from three cylinder startup optimizations, it is possible to cause because compressor step-out or starting current are excessive and start not
Get up；Either start twin-tub operation, running frequency is higher, and three cylinder startup optimizations are converted in the short time, due to compression suddenly
Machine load becomes big, and running frequency is higher, because compressor step-out causes compressor shutdown or the hidden danger of damage to greatly improve.
The content of the invention
The present invention is intended to provide one kind make the reliable positive displacement compressor system control method of positive displacement compressor system operation and
Control device.
The invention provides a kind of positive displacement compressor system control method, this method includes：Opened in positive displacement compressor system
Move target operating condition or be switched to before target operating condition, make positive displacement compressor system in low frequency or default intermediate frequency operation
Between.
Further, before positive displacement compressor system starts to target operating condition, make positive displacement compressor system in low frequency or
Person's intermediate frequency operation preset time includes：Make positive displacement compressor system twin-tub startup optimization, and the preset time of low-frequency operation first；Make
Positive displacement compressor system is switched to the operation of three cylinders by twin-tub, and intermediate frequency runs the second preset time；Running frequency is adjusted to mesh
Mark operating mode frequency.
Further, before positive displacement compressor system is switched to target operating condition, make positive displacement compressor system in low frequency or
Person's intermediate frequency operation preset time includes：Positive displacement compressor system is reduced to intermediate frequency or low frequency by current frequency, and run the
One preset time；Positive displacement compressor system is set to be switched to the operation of three cylinders by twin-tub, and intermediate frequency runs the second preset time；Will operation
Frequency is adjusted to target operating condition frequency.
Further, the first preset time is 1min, and the second preset time is 2min.
Present invention also offers a kind of positive displacement compressor system control device, the device includes：Control module, for becoming
Positive displacement compressor system starts to target operating condition or is switched to before target operating condition, make positive displacement compressor system low frequency or in
Frequency operation preset time.
Further, control module includes starting control unit, for making positive displacement compressor system twin-tub startup optimization, and
The preset time of low-frequency operation first；Positive displacement compressor system is set to be switched to the operation of three cylinders by twin-tub, and intermediate frequency operation second is default
Time；Running frequency is adjusted to target operating condition frequency.
Further, control module includes switch control unit, for making positive displacement compressor system be reduced by current frequency
To intermediate frequency or low frequency, and run the first preset time；Positive displacement compressor system is set to be switched to the operation of three cylinders, and intermediate frequency by twin-tub
Run the second preset time；Running frequency is adjusted to target operating condition frequency.
Further, the first preset time is 1min, and the second preset time is 2min.
According to the positive displacement compressor system control method and control device of the present invention, by starting in positive displacement compressor system
To target operating condition or before being switched to target operating condition, make positive displacement compressor system in low frequency or intermediate frequency operation preset time,
Prevent operating mode to be mutated, reduce the hidden danger for causing compressor damage or poor starting during the switching of positive displacement compressor system, so that becoming
Positive displacement compressor system operation is more reliable.
Brief description of the drawings
The accompanying drawing for forming the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the principle schematic according to the positive displacement compressor system control method of the present invention；
Embodiment
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, according to the positive displacement compressor system control method of the present invention, this method includes：In positive displacement compressor
System starts to target operating condition or is switched to before target operating condition, makes positive displacement compressor system pre- in low frequency or intermediate frequency operation
If the time.So as to prevent operating mode to be mutated, reducing causes the hidden of compressor damage or poor starting during the switching of positive displacement compressor system
Suffer from, so that positive displacement compressor system operation is more reliable.
Specifically, with reference to shown in Fig. 1, need to switch with positive displacement compressor system boot startup optimization and the operation of twin-tub high frequency
Describe the control method of the present invention exemplified by being run to three cylinders in detail.
When starting up runs, directly low frequency is used, makes positive displacement compressor from twin-tub startup optimization, running frequency first
The preset time of system operation first, such as 1min or more, after positive displacement compressor system run all right, three cylinders are switched to transport
OK, running frequency is run for intermediate frequency (oil return frequency), makes the preset time of positive displacement compressor system operation second, such as 2min or more
It is more, make positive displacement compressor system reliability service, after abundant oil-return lubrication, then running frequency is brought up under operating condition and requires to transport
Capable frequency, and controlled according to specific working condition requirement condition.Control method control positive displacement compressor system i.e. of the invention starts
During, running cylinder number and running frequency gradually increases, and ensures the abundant oil return of compressor and lubrication, avoids operating mode from being mutated, reduces
Compressor step-out or the hidden danger of damage.
Similarly, when positive displacement compressor system needs to be switched to the operation of three cylinders by the operation of twin-tub high frequency, frequency reducing first is transported
Row (being reduced to intermediate frequency or low frequency) 1min or so, then switch to three cylinders to run；Three cylinder intermediate frequencies operation 2min or so is kept, then will
Running frequency brings up under operating condition the frequency for requiring operation.Equally avoid operating mode from being mutated, reduce compressor step-out or damage
Hidden danger.
Present invention also offers a kind of control device corresponding with foregoing positive displacement compressor system control method, the device bag
Include：Control module, for before positive displacement compressor system starts to target operating condition or is switched to target operating condition, making transfiguration pressure
Contracting machine system is in low frequency or intermediate frequency operation preset time.So as to prevent operating mode to be mutated, when reducing the switching of positive displacement compressor system
Cause the hidden danger of compressor damage or poor starting, so that positive displacement compressor system operation is more reliable.
Specifically, control module includes starting control unit, for making positive displacement compressor system twin-tub startup optimization, and it is low
Frequency the first preset time of operation；Positive displacement compressor system is set to be switched to the operation of three cylinders by twin-tub, and when intermediate frequency operation second is default
Between；Running frequency is adjusted to target operating condition frequency, prevents operating mode to be mutated, causes to compress when reducing the switching of positive displacement compressor system
Machine damages or the hidden danger of poor starting, so that positive displacement compressor system operation is more reliable.
Control module also includes switch control unit, for make positive displacement compressor system by current frequency be reduced to intermediate frequency or
Person's low frequency, and run the first preset time；Positive displacement compressor system is set to be switched to the operation of three cylinders, and intermediate frequency operation second by twin-tub
Preset time；Running frequency is adjusted to target operating condition frequency, prevents operating mode to be mutated, is led when reducing the switching of positive displacement compressor system
The hidden danger of compressor damage or poor starting is caused, so that positive displacement compressor system operation is more reliable.In control device, specifically
The setting of parameter, it is corresponding with control method, do not repeating.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
According to the positive displacement compressor system control method and control device of the present invention, by starting in positive displacement compressor system
To target operating condition or before being switched to target operating condition, make positive displacement compressor system in low frequency or intermediate frequency operation preset time,
Operating mode is prevented to be mutated, so that positive displacement compressor system operation is more reliable.Technical scheme need not increase additionally into
This, it is only necessary to change from control method, can effectively avoid compressor load from raising suddenly causes compressor step-out and cause pressure
Contracting machine poor starting or the hidden danger of damage.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (4)
1. a kind of positive displacement compressor system control method, it is characterised in that methods described includes：
Before the positive displacement compressor system starts to target operating condition or is switched to target operating condition, make the positive displacement compressor
System is in low frequency or intermediate frequency operation preset time；
Wherein, before the positive displacement compressor system starts to target operating condition, make the positive displacement compressor system in low frequency or
Person's intermediate frequency operation preset time includes：Make the positive displacement compressor system twin-tub startup optimization, and when low-frequency operation first is preset
Between；The positive displacement compressor system is set to be switched to the operation of three cylinders by twin-tub, and intermediate frequency runs the second preset time；By running frequency
It is adjusted to target operating condition frequency；
Before the positive displacement compressor system is switched to target operating condition, make the positive displacement compressor system in low frequency or intermediate frequency
Operation preset time includes：The positive displacement compressor system is reduced to intermediate frequency or low frequency by current frequency, and run first
Preset time；The positive displacement compressor system is set to be switched to the operation of three cylinders by twin-tub, and intermediate frequency runs the second preset time；Will fortune
Line frequency is adjusted to target operating condition frequency.
2. positive displacement compressor system control method according to claim 1, it is characterised in that
First preset time is 1min, and second preset time is 2min.
3. a kind of positive displacement compressor system control device, it is characterised in that described device includes：
Control module, for before the positive displacement compressor system starts to target operating condition or is switched to target operating condition, making
The positive displacement compressor system is in low frequency or intermediate frequency operation preset time；
Wherein, the control module includes starting control unit, for making the positive displacement compressor system twin-tub startup optimization, and
The preset time of low-frequency operation first；The positive displacement compressor system is set to be switched to the operation of three cylinders, and intermediate frequency operation second by twin-tub
Preset time；Running frequency is adjusted to target operating condition frequency；
The control module includes switch control unit, for making the positive displacement compressor system be reduced to intermediate frequency by current frequency
Or low frequency, and run the first preset time；The positive displacement compressor system is set to be switched to the operation of three cylinders by twin-tub, and intermediate frequency is transported
The preset time of row second；Running frequency is adjusted to target operating condition frequency.
4. positive displacement compressor system control device according to claim 3, it is characterised in that
First preset time is 1min, and second preset time is 2min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510854811.2A CN105423666B (en) | 2015-11-27 | 2015-11-27 | Positive displacement compressor system control method and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510854811.2A CN105423666B (en) | 2015-11-27 | 2015-11-27 | Positive displacement compressor system control method and control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105423666A CN105423666A (en) | 2016-03-23 |
| CN105423666B true CN105423666B (en) | 2017-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510854811.2A Active CN105423666B (en) | 2015-11-27 | 2015-11-27 | Positive displacement compressor system control method and control device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10072865B2 (en) * | 2016-04-14 | 2018-09-11 | Schneider Electric It Corporation | Systems and methods for minimizing compressor use in HVAC systems |
| CN109026712B (en) | 2018-06-27 | 2020-03-24 | 珠海格力电器股份有限公司 | Variable volume control method and device for compressor and intelligent household appliance |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032701A (en) * | 2009-09-30 | 2011-04-27 | 广东美芝制冷设备有限公司 | Refrigeration circulating system and application thereof |
| CN102788405A (en) * | 2012-08-03 | 2012-11-21 | 宁波奥克斯电气有限公司 | Start control method of fast refrigerating and fast heating for direct current variable frequency air conditioner |
| JP2015024357A (en) * | 2013-07-25 | 2015-02-05 | 株式会社大川原製作所 | Method for operating heat pump type concentration apparatus |
| CN104879942A (en) * | 2015-05-13 | 2015-09-02 | 广东美芝制冷设备有限公司 | Refrigerating and heating circulating system |
-
2015
- 2015-11-27 CN CN201510854811.2A patent/CN105423666B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032701A (en) * | 2009-09-30 | 2011-04-27 | 广东美芝制冷设备有限公司 | Refrigeration circulating system and application thereof |
| CN102788405A (en) * | 2012-08-03 | 2012-11-21 | 宁波奥克斯电气有限公司 | Start control method of fast refrigerating and fast heating for direct current variable frequency air conditioner |
| JP2015024357A (en) * | 2013-07-25 | 2015-02-05 | 株式会社大川原製作所 | Method for operating heat pump type concentration apparatus |
| CN104879942A (en) * | 2015-05-13 | 2015-09-02 | 广东美芝制冷设备有限公司 | Refrigerating and heating circulating system |
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| CN105423666A (en) | 2016-03-23 |
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