CN107860161A - Compressor cylinder body switching method and device, storage medium, compressor and equipment - Google Patents
Compressor cylinder body switching method and device, storage medium, compressor and equipment Download PDFInfo
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- CN107860161A CN107860161A CN201710843642.1A CN201710843642A CN107860161A CN 107860161 A CN107860161 A CN 107860161A CN 201710843642 A CN201710843642 A CN 201710843642A CN 107860161 A CN107860161 A CN 107860161A
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000003860 storage Methods 0.000 title claims abstract description 9
- 238000004590 computer program Methods 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 5
- 238000004378 air conditioning Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 15
- 238000007906 compression Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 8
- 230000000630 rising effect Effects 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 11
- 230000006870 function Effects 0.000 description 5
- 238000011217 control strategy Methods 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000010725 compressor oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- 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
- F25B2600/01—Timing
-
- 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
- F25B2600/021—Inverters therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a compressor cylinder body switching method, a compressor cylinder body switching device, a storage medium, a compressor and equipment. The switching method of the compressor cylinder comprises the following steps: controlling the compressor to perform first frequency rising after the compressor is started, rising the frequency of the compressor to a first target frequency point, and operating for a first preset time at the first target frequency point; and after the first frequency raising, controlling the compressor to carry out second frequency raising, raising the frequency of the compressor to a second target frequency point, and carrying out cylinder body switching in the second frequency raising process. According to the technical scheme provided by the invention, the switching of the cylinder bodies is completed in the second frequency boosting process after the system is started, so that the variable volume ratio compression heat pump system can be started at a low temperature or the cylinder bodies are switched without liquid impact and oil return are normal, the performance and reliability of the compressor are greatly improved, the service life of the compressor is greatly prolonged, and the operation reliability of the whole system is improved.
Description
Technical field
The present invention relates to compressor assembly control field, more particularly to a kind of compressor casing switching method, device, storage
Medium, compressor and equipment.
Background technology
When capacity starts under worst cold case than compressor heat pumping system, carries out cylinder body switching, compressor is easily caused
Hydraulic compression and make compressor reduced lifetime.Prior art is in order to solve this problem, during the raising frequency of system upon actuation, sets
One low frequency stops platform and oil return stops platform, and needs progress cylinder body switching than compressor heat pumping system for capacity
When, the switching of cylinder body is completed between two stop platforms, but for capacity than compression heat pump system, still suffer from oil return it is difficult and
The problem of hydraulic compression (i.e. compressor compresses liquid refrigerants), have a strong impact on compressor performance, reliability and life-span.
The content of the invention
A kind of the defects of it is a primary object of the present invention to overcome above-mentioned prior art, there is provided compressor casing switching side
Method, device, storage medium, compressor and equipment, with solve capacity than compressor oil return return liquid is difficult, cylinder body switching is difficult,
The problem of the problem of hydraulic compression easily occurs.
One aspect of the present invention provides a kind of compressor casing switching method, including：After compressor start described in control
Compressor carries out first time raising frequency, and the frequency of the compressor is risen into first object Frequency point, and in first object frequency
Rate point runs the first preset time；The compressor is controlled to carry out second of raising frequency after the first time raising frequency, by described in
The frequency of compressor rises to the second target frequency point, and cylinder body switching is carried out during second of raising frequency.
Alternatively, in addition to：During the compressor carries out second of raising frequency, the compressor is controlled to be down to the
Lowest frequency points during secondary raising frequency, lowest frequency points and second target frequency during second of raising frequency
Cylinder body switching frequency point is set between rate point, cylinder body switching is carried out in the cylinder body switching frequency point.
Alternatively, in addition to：The cylinder body switching frequency point is higher than the lowest frequency points during second of raising frequency,
And it is less than the second target frequency point.
Alternatively, in addition to：The high frequency dwell point, intermediate frequency dwell point and low frequency for presetting compressor operating frequency stop
Point, in the case where the first object Frequency point is more than or equal to the default high frequency dwell point, the first time raising frequency is also
Including：The frequency of the compressor is risen into the low frequency dwell point after compressor start, and transported in the low frequency dwell point
The preset time of row second；After the second preset time is run, the frequency of the compressor is risen into the intermediate frequency dwell point, and
The 3rd preset time is run in the intermediate frequency dwell point；After the 3rd preset time is run, by the frequency liter of the compressor
The 4th preset time is run to the high frequency dwell point, and in the high frequency dwell point；, will after the 4th preset time is run
The frequency of the compressor rises to the first object Frequency point, and default in first object Frequency point operation described first
Time.
Alternatively, in addition to：The high frequency dwell point, intermediate frequency dwell point and low frequency for presetting compressor operating frequency stop
Point, in the case where the first object Frequency point is less than the default high frequency dwell point, the first time raising frequency also includes：
The frequency of the compressor is risen into the low frequency dwell point after compressor start, and second is run in the low frequency dwell point
Preset time；After the second preset time is run, the frequency of the compressor is risen into the intermediate frequency dwell point, and described
Intermediate frequency dwell point runs the 3rd preset time；After the 3rd preset time is run, the frequency of the compressor is risen to described
First object Frequency point, and run first preset time in the first object Frequency point.
Alternatively, in addition to：Set according to environment temperature, design temperature, blower fan wind shelves, heat exchange temperature and system pressure
The second target frequency point；And/or the first object Frequency point is set according to overall performance and reliability requirement；And/or
The span of first preset time is 0s-360s.
Alternatively, in addition to：Second preset time, the 3rd preset time and the 4th preset time take
Value scope is 0s-360s.
Another aspect of the present invention provides a kind of compressor casing switching device again, including：First control unit, is used for
Control the compressor to carry out first time raising frequency after compressor start, the frequency of the compressor is risen into first object frequency
Point, and run the first preset time in the first object Frequency point；Second control unit, for the first time raising frequency it
After control the compressor to carry out second of raising frequency, the frequency of the compressor is risen into the second target frequency point, described the
Cylinder body switching is carried out during secondary raising frequency.
Alternatively, second control unit is additionally operable to：During the compressor carries out second of raising frequency, control
The lowest frequency points that the compressor is down to during second of raising frequency, the lowest frequency points during second of raising frequency
Cylinder body switching frequency point is set between the second target frequency point, cylinder body switching is carried out in the cylinder body switching frequency point.
Alternatively, in addition to：The cylinder body switching frequency point is higher than the lowest frequency points during second of raising frequency,
And it is less than the second target frequency point.
Alternatively, first control unit is additionally operable to：Preset high frequency dwell point, the intermediate frequency of compressor operating frequency
Dwell point and low frequency dwell point, in the case where the first object Frequency point is more than or equal to the default high frequency dwell point,
The frequency of the compressor is risen into the low frequency dwell point after compressor start, and second is run in the low frequency dwell point
Preset time；After the second preset time is run, the frequency of the compressor is risen into the intermediate frequency dwell point, and described
Intermediate frequency dwell point runs the 3rd preset time；After the 3rd preset time is run, the frequency of the compressor is risen to described
High frequency dwell point, and run the 4th preset time in the high frequency dwell point；After the 4th preset time is run, by the pressure
The frequency of contracting machine rises to the first object Frequency point, and runs first preset time in the first object Frequency point.
Alternatively, first control unit is additionally operable to：Preset high frequency dwell point, the intermediate frequency of compressor operating frequency
Dwell point and low frequency dwell point, in the case where the first object Frequency point is less than the default high frequency dwell point, pressing
The frequency of the compressor is risen into the low frequency dwell point after the startup of contracting machine, and it is default in low frequency dwell point operation second
Time；After the second preset time is run, the frequency of the compressor is risen into the intermediate frequency dwell point, and in the intermediate frequency
Dwell point runs the 3rd preset time；After the 3rd preset time is run, the frequency of the compressor is risen to described first
Target frequency point, and run first preset time in the first object Frequency point.
Alternatively, in addition to：The second target frequency point is according to environment temperature, design temperature, blower fan wind shelves, heat exchanger
Temperature and system pressure setting；And/or the first object Frequency point is set according to overall performance and reliability requirement；And/or
The span of first preset time is 0s-360s.
Alternatively, in addition to：Second preset time, the 3rd preset time and the 4th preset time take
Value scope is 0s-360s.
Another aspect of the present invention provides a kind of compressor again, has the device described in any of the above-described.
Another aspect of the present invention provides a kind of compressor again, including processor, memory and is stored in memory
On the computer program that can run on a processor, realize any of the above-described methods described during the computing device described program
Step.
Another aspect of the present invention provides a kind of air-conditioning again, has the compressor described in any of the above-described.
Another aspect of the invention provides a kind of computer-readable recording medium again, is stored thereon with computer program,
The step of any of the above-described methods described is realized when described program is executed by processor.
Technical scheme provided by the invention completes the switching of cylinder body during second of raising frequency after system boot startup,
Can make capacity than compression heat pump system cold-starting or carry out cylinder body switching when it is normal without liquid hammer, oil return, significantly
Performance, reliability and the service life of compressor are lifted, and lifts the operational reliability of whole system.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the general frame figure of compressor casing switching method provided by the invention；
Fig. 2 is a kind of control of preferred embodiment of the cold-starting control of compressor casing switching method provided by the invention
Flow chart processed；
Fig. 3 is that the heat pump of compressor casing switching method provided by the invention starts and one kind of cylinder body switching is preferred
The frequency versus time plot of embodiment；
Fig. 4 is the control of the another preferred embodiment of the cold-starting control of compressor casing switching method provided by the invention
Flow chart processed；
Fig. 5 be compressor casing switching method provided by the invention heat pump start and cylinder body switching it is another preferably
The frequency versus time plot of embodiment；
Fig. 6 is the general frame figure of compressor casing switching device provided by the invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described corresponding accompanying drawing.Obviously, described embodiment is only the present invention one
Section Example, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out under the premise of creative work the every other embodiment obtained, belong to the scope of protection of the invention.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except illustrating herein or
Order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or the intrinsic other steps of equipment or unit.
One aspect of the present invention provides a kind of compressor casing switching method.Fig. 1 is compressor casing provided by the invention
The general frame figure of switching method.As shown in figure 1, compressor casing switching method of the present invention includes：Step S110, in compressor
Control the compressor to carry out first time raising frequency after startup, the frequency of the compressor is risen into first object Frequency point, and
The first object Frequency point runs the first preset time；Step S120, the compression is controlled after the first time raising frequency
Machine carries out second of raising frequency, the frequency of the compressor is risen into the second target frequency point, during second of raising frequency
Carry out cylinder body switching.Technical scheme provided by the invention is after first time raising frequency to first object Frequency point, in first object frequency
Rate point runs the first preset time, treats that whole system gets into smooth, and refrigerant no longer accumulates in compressor chamber body and system can be just
When liquid is returned in normal oil return, then second of raising frequency is carried out, and cylinder body switching is carried out during second of raising frequency, so as to make transfiguration
It is long-pending more normal without liquid hammer, oil return in cold-starting or progress cylinder body switching than compression heat pump system, significantly lift compressor
Performance, reliability and service life, and lift the operational reliability of whole system.
According to a kind of embodiment of compressor casing switching method of the present invention, in addition to：According to environment temperature, setting temperature
Degree, blower fan wind shelves, heat exchange temperature and system pressure set the second target frequency point；And/or according to overall performance and can
Require to set the first object Frequency point by property；And/or the span of first preset time is 0s-360s.Wherein,
Compressor performance parameter includes compressor model, oil level and/or performance operation curve；Consider from system reliability is advantageous to,
First object Frequency point is higher than oil return frequency 0Hz-10Hz or so, and the common span of first object Frequency point is 40Hz-
60Hz, specifically can be according to compressor performance parameter setting.
Fig. 2 is a kind of control of preferred embodiment of the cold-starting control of compressor casing switching method provided by the invention
Flow chart processed.As shown in Fig. 2 according to a kind of embodiment of compressor casing switching method of the present invention, in addition to：Preset
High frequency dwell point, intermediate frequency dwell point and the low frequency dwell point of compressor operating frequency, be more than in the first object Frequency point etc.
In the case of the default high frequency dwell point, the first time raising frequency also includes：Step S210, will after compressor start
The frequency of the compressor rises to the low frequency dwell point, and runs the second preset time in the low frequency dwell point；Step
S220, after the second preset time is run, the frequency of the compressor is risen into the intermediate frequency dwell point, and in the intermediate frequency
Dwell point runs the 3rd preset time；Step S230, after the 3rd preset time is run, the frequency of the compressor is risen to
The high frequency dwell point, and run the 4th preset time in the high frequency dwell point；Step S240, running the 4th preset time
Afterwards, the frequency of the compressor is risen into the first object Frequency point, and described in first object Frequency point operation
First preset time.
According to a kind of embodiment of compressor casing switching method of the present invention, in addition to：Second preset time, institute
The span for stating the 3rd preset time and the 4th preset time is 0s-360s.Specifically, the setting of above-mentioned preset time
It is relevant with compressor performance and heat pump system performance.To be preset according to actual conditions the very first time, it is described second it is default when
Between, the 3rd preset time and the 4th preset time, above-mentioned preset time is unsuitable oversize or too short.If preset time
It is too short, oil return effect is influenced whether, makes oil return ineffective；If preset time is oversize, raising frequency speed can be made slack-off.Therefore exist
In the case of ensureing that systematic function reaches requirement, how above-mentioned preset time determines to consider, and system is reached in every respect
To preferable effect.
Fig. 3 is that the heat pump of compressor casing switching method provided by the invention starts and one kind of cylinder body switching is preferred
The frequency versus time plot of embodiment；Fig. 5 is heat pump startup and the cylinder of compressor casing switching method provided by the invention
The frequency versus time plot of the another preferred embodiment of body switching.In fig. 3 and in fig. 5, frequency f1 is during first time raising frequency
Low frequency dwell point；F2 is the intermediate frequency dwell point during first time raising frequency；Fi is that the high frequency during first time raising frequency stops
Point；F3 is the target frequency point of first time raising frequency, i.e. first object Frequency point.If the system determine that need to enter the operation of three cylinders, this
Frequency (i.e. first object Frequency point) is stopped according to compressor performance parameter setting, is not changed with other factors such as environment；f4
For first time raising frequency to the lowest frequency points between second of raising frequency, i.e., a certain Frequency point between f3 and f5；F5 is second
Cylinder body switching frequency point during secondary raising frequency；F6 is the target frequency point of second raising frequency, i.e. the second target frequency point.
Referring to Fig. 2 and Fig. 3, specifically, when capacity takes three cylinders or multi-cylinder mode operation than compression heat pump system,
It starts f1 → f2 → (fi) → f3 → f4 → f5 → f6 in control strategy such as Fig. 3.If first object Frequency point (nominal condition
Dot frequency) f3 >=fi when, after compressor start, f1 is risen to certain raising frequency speed and stops the second preset time t 1 herein；
F2 is risen to certain raising frequency speed again and stops the 3rd preset time t 2 herein；Again with certain raising frequency speed raising frequency to fi simultaneously
The 4th preset time t i is stopped herein；Nominal condition dot frequency f3 is risen to certain raising frequency speed again and stop first herein is pre-
If time t3.Above is compressor carries out the process of first time raising frequency in the case of f3 >=fi.
Fig. 4 is the control of the another preferred embodiment of the cold-starting control of compressor casing switching method provided by the invention
Flow chart processed.As shown in figure 4, according to a kind of embodiment of compressor casing switching method of the present invention, in addition to：Preset
High frequency dwell point, intermediate frequency dwell point and the low frequency dwell point of compressor operating frequency, it is less than institute in the first object Frequency point
In the case of stating default high frequency dwell point, the first time raising frequency also includes：Step S210, after compressor start by described in
The frequency of compressor rises to the low frequency dwell point, and runs the second preset time in the low frequency dwell point；Step S220,
After running the second preset time, the frequency of the compressor is risen into the intermediate frequency dwell point, and in the intermediate frequency dwell point
Run the 3rd preset time；Step S250, after the 3rd preset time is run, the frequency of the compressor is risen to described
Target frequency point, and run first preset time in the first object Frequency point.
Referring to Fig. 4 and Fig. 5, specifically, when capacity takes three cylinders or multi-cylinder mode operation than compression heat pump system,
During first object Frequency point if (nominal condition dot frequency) f3 ＜ fi, its start f1 → f2 → f3 in control strategy such as Fig. 3 →
f4→f5→f6.After compressor start, f1 is risen to certain raising frequency speed and stops the second preset time t 1 herein；Again with certain
Raising frequency speed rise to f2 and herein stop the 3rd preset time t 2；Nominal condition dot frequency is risen to certain raising frequency speed again
F3 simultaneously stops the first preset time t 3 herein.Above is compressor carries out the process of first time raising frequency in the case of f3 ＜ fi.
According to a kind of embodiment of compressor casing switching method of the present invention, in addition to：The is carried out in the compressor
During secondary raising frequency, the lowest frequency points that control the compressor to be down to during second of raising frequency, at described second
Cylinder body switching frequency point is set between lowest frequency points and the second target frequency point during raising frequency, is cut in the cylinder body
Change Frequency point and carry out cylinder body switching.The span of lowest frequency points during second of raising frequency is 20Hz-30Hz；
And/or the cylinder body switching frequency point is higher than the lowest frequency points during second of raising frequency, and it is less than second mesh
Mark Frequency point.
Referring to Fig. 3 and Fig. 5, specifically, after first time raising frequency, treat that whole system gets into smooth, refrigerant no longer accumulates
In compressor chamber body and system can normally oil return time liquid when, system starts to be downconverted to after f4 again with certain raising frequency with given pace
Speed raising frequency completes the switching of cylinder body, wherein f1 ＜ f2 ＜ when frequency is f5 during this period to the second target frequency point f6
F3 and f4 ＜ f5 ＜ f6.Above is compressor carries out the process of second of raising frequency, under f3 >=fi and f3 ＜ fi both of these cases,
The process of its second of raising frequency is the same.
Another situation, when capacity takes (start i.e. two cylinders of the unlatching operation of two cylinder mode operations than compression heat pump system
Pattern, similar to common Two-stage Compression, now the 3rd cylinder idle running, in the absence of the switching of cylinder body) when, it starts control strategy
Such as f1 → f2 in Fig. 3 and Fig. 5 → (fi) → f3.If during f3 ＜ fi, after compressor start, f1 is risen to certain raising frequency speed
And the t1 between this stopping time；F2 is risen to and in this residence time t2 with certain raising frequency speed again；Finally with certain raising frequency speed
Target frequency f3 is risen to, system is run with frequency f3, and follow-up system enters further according to the environment and system data specifically monitored
The control of row lifting frequency；If during f3 >=fi, after compressor start, f1 is risen to and in this residence time with certain raising frequency speed
t1；F2 is risen to and in this residence time t2 with certain raising frequency speed again；Fi is risen to certain raising frequency speed again, and stopped herein
Stay time ti；Target frequency f3 is finally risen to certain raising frequency speed, system is run with frequency f3, follow-up system root again
The control of lifting frequency is carried out according to the environment and system data specifically monitored.Subsequent control is similar with conventional system, i.e., according to monitoring
Environment temperature, pipe temperature etc. enter the elevating control of line frequency.
Another aspect of the present invention provides a kind of compressor casing switching device again.Fig. 6 is compression provided by the invention
The general frame figure of machine cylinder body switching device.As shown in fig. 6, compressor casing switching device of the present invention includes：First control is single
Member 100, for controlling the compressor to carry out first time raising frequency after compressor start, the frequency of the compressor is risen to the
Target frequency point, and run the first preset time in the first object Frequency point；Second control unit 200, in institute
State first time raising frequency controls the compressor to carry out second of raising frequency afterwards, and the frequency of the compressor is risen into the second target frequency
Rate point, cylinder body switching is carried out during second of raising frequency.
According to a kind of embodiment of compressor casing switching device of the present invention, in addition to：The second target frequency point
Set according to environment temperature, design temperature, blower fan wind shelves, heat exchange temperature and system pressure；And/or the first object frequency
Point is set according to overall performance and reliability requirement；And/or the span of first preset time is 0s-360s.
According to a kind of embodiment of compressor casing switching device of the present invention, second control unit 200 is additionally operable to：
During the compressor carries out second of raising frequency, the lowest frequency that controls the compressor to be down to during second of raising frequency
Rate point, cylinder body switching frequency is set between the lowest frequency points during second of raising frequency and the second target frequency point
Rate point, cylinder body switching is carried out in the cylinder body switching frequency point.
According to a kind of embodiment of compressor casing switching device of the present invention, in addition to：Second of raising frequency process
In the spans of lowest frequency points be 20Hz-30Hz；And/or the cylinder body switching frequency point is higher than described second liter
Lowest frequency points during frequency, and it is less than the second target frequency point.
According to a kind of embodiment of compressor casing switching device of the present invention, first control unit 100 is additionally operable to：
The high frequency dwell point, intermediate frequency dwell point and low frequency dwell point of compressor operating frequency are preset, in the first object frequency
In the case that point is more than or equal to the default high frequency dwell point, the frequency of the compressor is risen into institute after compressor start
Low frequency dwell point is stated, and the second preset time is run in the low frequency dwell point；After the second preset time is run, by described in
The frequency of compressor rises to the intermediate frequency dwell point, and runs the 3rd preset time in the intermediate frequency dwell point；In operation the 3rd
After preset time, the frequency of the compressor is risen into the high frequency dwell point, and the 4th is run in the high frequency dwell point
Preset time；After the 4th preset time is run, the frequency of the compressor is risen into the first object Frequency point, and
The first object Frequency point runs first preset time.
According to a kind of embodiment of compressor casing switching device of the present invention, first control unit 100 is additionally operable to：
The high frequency dwell point, intermediate frequency dwell point and low frequency dwell point of compressor operating frequency are preset, in the first object frequency
In the case that point is less than the default high frequency dwell point, the frequency of the compressor risen to after compressor start described low
Frequency dwell point, and run the second preset time in the low frequency dwell point；After the second preset time is run, by the compression
The frequency of machine rises to the intermediate frequency dwell point, and runs the 3rd preset time in the intermediate frequency dwell point；It is default in operation the 3rd
After time, the frequency of the compressor is risen into the first object Frequency point, and run in the first object Frequency point
First preset time.
According to a kind of embodiment of compressor casing switching device of the present invention, in addition to：Second preset time, institute
The span for stating the 3rd preset time and the 4th preset time is 0s-360s.
Another aspect of the present invention provides a kind of compressor again, has the device described in any of the above-described.
Another aspect of the present invention provides a kind of compressor again, including processor, memory and is stored in memory
On the computer program that can run on a processor, realize any of the above-described methods described during the computing device described program
Step.
Another aspect of the present invention provides a kind of air-conditioning again, has the compressor described in any of the above-described.
Another aspect of the invention provides a kind of computer-readable recording medium again, is stored thereon with computer program,
The step of any of the above-described methods described is realized when described program is executed by processor.
Technical scheme provided by the invention completes the switching of cylinder body during second of raising frequency after system boot startup,
Can make capacity than compression heat pump system cold-starting or carry out cylinder body switching when it is normal without liquid hammer, oil return, significantly
Performance, reliability and the service life of compressor are lifted, and lifts the operational reliability of whole system.
Function described herein can be implemented in hardware, by the software of computing device, firmware or its any combinations.
If implement in the software by computing device, then computer can be stored in using function as one or more instructions or code
Transmitted on readable media or via computer-readable media.Other examples and embodiment will in of the invention and appended right
Ask in the scope and spirit of book.For example, be attributed to the property of software, function described above can be used by processor,
Hardware, firmware, hardwired appoint the software implementation that the combination of whichever performs in these.In addition, each functional unit can integrate
In a processing unit or unit is individually physically present, can also two or more units be integrated in
In one unit.
In several embodiments provided herein, it should be understood that disclosed technology contents, others can be passed through
Mode is realized.Wherein, device embodiment described above is only schematical, such as the division of the unit, Ke Yiwei
A kind of division of logic function, can there is an other dividing mode when actually realizing, for example, multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module
Connect, can be electrical or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, as control fill
The part put can be or may not be physical location, can both be located at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part to be contributed in other words to prior art or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are causing a computer
Equipment (can be personal computer, server or network equipment etc.) perform each embodiment methods described of the present invention whole or
Part steps.And foregoing storage medium includes：USB flash disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can be with store program codes
Medium.
Embodiments of the invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included within scope of the presently claimed invention.
Claims (16)
- A kind of 1. compressor casing switching method, it is characterised in that including：Control the compressor to carry out first time raising frequency after compressor start, the frequency of the compressor is risen into first object Frequency point, and run the first preset time in the first object Frequency point；Control the compressor to carry out second of raising frequency after the first time raising frequency, the frequency of the compressor is risen to the 2 target frequency points, cylinder body switching is carried out during second of raising frequency.
- 2. according to the method for claim 1, it is characterised in that also include：In the compressor second of raising frequency of progress During, the lowest frequency points that control the compressor to be down to during second of raising frequency, during second of raising frequency Lowest frequency points and the second target frequency point between set cylinder body switching frequency point, the cylinder body switching frequency click through Row cylinder body switches.
- 3. according to the method for claim 2, it is characterised in that also include：The cylinder body switching frequency point is higher than described the Lowest frequency points during secondary raising frequency, and it is less than the second target frequency point.
- 4. according to the method any one of claim 1-3, it is characterised in that also include：Preset compressor operating High frequency dwell point, intermediate frequency dwell point and the low frequency dwell point of frequency, it is more than or equal in the first object Frequency point described default High frequency dwell point in the case of, the first time raising frequency also includes：The frequency of the compressor is risen into the low frequency dwell point after compressor start, and run in the low frequency dwell point Second preset time；After the second preset time is run, the frequency of the compressor is risen into the intermediate frequency dwell point, and in the intermediate frequency Dwell point runs the 3rd preset time；After the 3rd preset time is run, the frequency of the compressor is risen into the high frequency dwell point, and in the high frequency Dwell point runs the 4th preset time；After the 4th preset time is run, the frequency of the compressor is risen into the first object Frequency point, and described First object Frequency point runs first preset time.
- 5. according to the method any one of claim 1-3, it is characterised in that also include：Preset compressor operating High frequency dwell point, intermediate frequency dwell point and the low frequency dwell point of frequency, it is less than the default height in the first object Frequency point In the case of frequency dwell point, the first time raising frequency also includes：The frequency of the compressor is risen into the low frequency dwell point after compressor start, and run in the low frequency dwell point Second preset time；After the second preset time is run, the frequency of the compressor is risen into the intermediate frequency dwell point, and in the intermediate frequency Dwell point runs the 3rd preset time；After the 3rd preset time is run, the frequency of the compressor is risen into the first object Frequency point, and described First object Frequency point runs first preset time.
- 6. according to the method any one of claim 1-5, it is characterised in that also include：Second target frequency is set according to environment temperature, design temperature, blower fan wind shelves, heat exchange temperature and system pressure Point；And/orThe first object Frequency point is set according to overall performance and reliability requirement；And/orThe span of first preset time is 0s-360s.
- 7. according to the method any one of claim 5-7, it is characterised in that also include：Second preset time, institute The span for stating the 3rd preset time and the 4th preset time is 0s-360s.
- A kind of 8. compressor casing switching device, it is characterised in that including：First control unit, for controlling the compressor to carry out first time raising frequency after compressor start, by the compressor Frequency rise to first object Frequency point, and run the first preset time in the first object Frequency point；Second control unit, for controlling the compressor to carry out second of raising frequency after the first time raising frequency, by described in The frequency of compressor rises to the second target frequency point, and cylinder body switching is carried out during second of raising frequency.
- 9. device according to claim 8, it is characterised in that second control unit is additionally operable to：In the compressor During carrying out second of raising frequency, the lowest frequency points that control the compressor to be down to during second of raising frequency, described Cylinder body switching frequency point is set between lowest frequency points and the second target frequency point during second of raising frequency, described Cylinder body switching frequency point carries out cylinder body switching.
- 10. device according to claim 9, it is characterised in that also include：The cylinder body switching frequency point is higher than described the Lowest frequency points during secondary raising frequency, and it is less than the second target frequency point.
- 11. according to the device any one of claim 8-10, it is characterised in that first control unit is additionally operable to： The high frequency dwell point, intermediate frequency dwell point and low frequency dwell point of compressor operating frequency are preset, in the first object frequency In the case that point is more than or equal to the default high frequency dwell point,The frequency of the compressor is risen into the low frequency dwell point after compressor start, and run in the low frequency dwell point Second preset time；After the second preset time is run, the frequency of the compressor is risen into the intermediate frequency dwell point, and in the intermediate frequency Dwell point runs the 3rd preset time；After the 3rd preset time is run, the frequency of the compressor is risen into the high frequency dwell point, and in the high frequency Dwell point runs the 4th preset time；After the 4th preset time is run, the frequency of the compressor is risen into the first object Frequency point, and described First object Frequency point runs first preset time.
- 12. according to the device any one of claim 8-10, it is characterised in that first control unit is additionally operable to： The high frequency dwell point, intermediate frequency dwell point and low frequency dwell point of compressor operating frequency are preset, in the first object frequency In the case that point is less than the default high frequency dwell point,The frequency of the compressor is risen into the low frequency dwell point after compressor start, and run in the low frequency dwell point Second preset time；After the second preset time is run, the frequency of the compressor is risen into the intermediate frequency dwell point, and in the intermediate frequency Dwell point runs the 3rd preset time；After the 3rd preset time is run, the frequency of the compressor is risen into the first object Frequency point, and described First object Frequency point runs first preset time.
- 13. the device according to claim 11 or 12, it is characterised in that also include：The second target frequency point is set according to environment temperature, design temperature, blower fan wind shelves, heat exchange temperature and system pressure It is fixed；And/orThe first object Frequency point is set according to overall performance and reliability requirement；And/orThe span of first preset time be 0s-360s and/orThe span of second preset time, the 3rd preset time and the 4th preset time is 0s-360s.
- 14. a kind of compressor, it is characterised in that there is the device as any one of claim 8-13.
- 15. a kind of compressor, it is characterised in that on a memory can be on a processor including processor, memory and storage The computer program of operation, the step of claim 1-7 any methods describeds are realized during the computing device described program.
- 16. a kind of air-conditioning, it is characterised in that including the compressor as described in claims 14 or 15.
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| CN201710843642.1A CN107860161B (en) | 2017-09-19 | 2017-09-19 | Compressor cylinder body switching method and device, storage medium, compressor and equipment |
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