CN104421139B - Compressor operating control method and device - Google Patents
Compressor operating control method and device Download PDFInfo
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- CN104421139B CN104421139B CN201310370906.8A CN201310370906A CN104421139B CN 104421139 B CN104421139 B CN 104421139B CN 201310370906 A CN201310370906 A CN 201310370906A CN 104421139 B CN104421139 B CN 104421139B
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Abstract
The invention discloses a kind of compressor operating control method and device.This compressor operating control method includes: the pressure of inspiration(Pi) of detection compressor and/or pressure at expulsion；Pressure of inspiration(Pi) and/or pressure at expulsion are compared with default range of operation, obtains comparative result；And the operation of compressor is controlled according to comparative result.By the present invention, improve the reliability of compressor operating.
Description
Technical field
The present invention relates to air-conditioner control system field, in particular to a kind of compressor operating control method and device.
Background technology
The method of general control compressor operating is by limiting the unlatching of compressor according to outdoor environment temperature and stopping
Only.Under air-conditioning is in refrigeration mode, when outdoor environment temperature is less than certain temperature limit, limit opening of compressor
Open；Under air-conditioning is in heating mode, when outdoor environment temperature is more than certain temperature limit, limit opening of compressor
Open.
This kind of control method has some limitations, and is affected relatively big by outside environmental elements, such as dirty when heat exchanger
Stifled or time compressor coolant has leakage, the temperature limit before defined arises that deviation, therefore, the fortune to compressor
Row controls the most reasonable, causes the reliability of compressor operating to reduce.
For the problem that the reliability of compressor operating in prior art is low, effective solution is the most not yet proposed.
Summary of the invention
Present invention is primarily targeted at a kind of compressor operating control method of offer and device, to solve compressor operating
Control method problem.
To achieve these goals, according to an aspect of the invention, it is provided a kind of compressor operating control method.
Compressor operating control method according to the present invention includes: the pressure of inspiration(Pi) of detection compressor and/or pressure at expulsion；To inhale
Atmospheric pressure and/or pressure at expulsion compare with default range of operation, obtain comparative result；Pressure is controlled according to comparative result
The operation of contracting machine.
Further, before compressor starting up, the pressure of inspiration(Pi) of detection compressor and pressure at expulsion, wherein: will
Pressure of inspiration(Pi) and/or pressure at expulsion compare with default range of operation, obtain comparative result and include: judge pressure of inspiration(Pi)
Or whether pressure at expulsion is beyond presetting range of operation, obtains judged result；The operation of compressor is controlled according to comparative result
Including: if it is judged that pressure of inspiration(Pi) and/or pressure at expulsion are beyond presetting range of operation, then forbid compressor start.
Further, when compressor operating, the pressure of inspiration(Pi) of detection compressor and pressure at expulsion, wherein: by air-breathing
Pressure and/or pressure at expulsion compare with default range of operation, obtain comparative result and include: judge pressure of inspiration(Pi) or row
Atmospheric pressure, whether beyond presetting range of operation, obtains judged result.The operation controlling compressor according to comparative result includes:
If it is judged that pressure of inspiration(Pi) and/or pressure at expulsion are beyond presetting range of operation, then control compressor out of service.
Further, when compressor operating, the pressure of inspiration(Pi) of detection compressor and pressure at expulsion, wherein: by air-breathing
Pressure and/or pressure at expulsion compare with default range of operation, obtain comparative result and include: judge pressure of inspiration(Pi) and row
Whether the relation between atmospheric pressure is in default range of operation.The operation controlling compressor according to comparative result includes: as
Fruit judges that the relation between pressure of inspiration(Pi) and pressure at expulsion beyond presetting range of operation, then controls compressor out of service,
If the relation between pressure of inspiration(Pi) and pressure at expulsion is less than preset difference value with the difference of the margin value of default range of operation,
Then regulation pressure of inspiration(Pi) and/or pressure at expulsion.
Further, by aperture regulation pressure of inspiration(Pi) and/or the pressure at expulsion of regulation spray enthalpy electric expansion valve.
To achieve these goals, according to a further aspect in the invention, it is provided that a kind of compressor operating controls device.
Compressor operating according to the present invention controls device and includes: detector unit, for detect compressor pressure of inspiration(Pi) and/
Or pressure at expulsion；Comparing unit, for pressure of inspiration(Pi) and/or pressure at expulsion are compared with default range of operation,
To comparative result；Control unit, for controlling the operation of compressor according to comparative result.
Further, detector unit, for before compressor starting up, detects pressure of inspiration(Pi) and the exhaust pressure of compressor
Power, wherein: comparing unit is used for judging that pressure of inspiration(Pi) or pressure at expulsion, whether beyond presetting range of operation, are judged
Result；Control unit is for when pressure of inspiration(Pi) and/or pressure at expulsion exceed and preset range of operation, forbidding compressor start.
Further, detector unit, for when compressor operating, detects pressure of inspiration(Pi) and the pressure at expulsion of compressor,
Wherein: comparing unit is used for judging that pressure of inspiration(Pi) or pressure at expulsion, whether beyond presetting range of operation, obtain judged result；
Control unit is for when pressure of inspiration(Pi) and/or pressure at expulsion exceed and preset range of operation, controlling compressor out of service.
Further, detector unit, for when compressor operating, detects pressure of inspiration(Pi) and the pressure at expulsion of compressor,
Wherein: whether the relation that comparing unit is used for judging between pressure of inspiration(Pi) and pressure at expulsion, in default range of operation, is controlled
Unit processed beyond when presetting range of operation for the relation between pressure of inspiration(Pi) and pressure at expulsion, controls compressor and stops
Running, wherein, the relation between pressure of inspiration(Pi) and pressure at expulsion and the difference of the margin value of default range of operation are less than pre-
If during difference, control unit is used for regulating pressure of inspiration(Pi) and/or pressure at expulsion.
Further, control unit regulates pressure of inspiration(Pi) and/or exhaust pressure by the aperture of regulation spray enthalpy electric expansion valve
Power.
By the present invention, use compressor operating control method, including: the pressure of inspiration(Pi) of detection compressor and/or aerofluxus
Pressure；Pressure of inspiration(Pi) and/or pressure at expulsion are compared with default range of operation, obtains comparative result；And according to
Comparative result controls the operation of compressor, solves the problem that the reliability of compressor operating is low, and then has reached to improve
The effect of compressor operating reliability.
Accompanying drawing explanation
The accompanying drawing of the part constituting the application is used for providing a further understanding of the present invention, and the present invention's is schematic real
Execute example and illustrate for explaining the present invention, being not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structured flowchart that compressor operating according to embodiments of the present invention controls device；
Fig. 2 is the flow chart of compressor operating control method according to embodiments of the present invention；And
Fig. 3 is the flow chart of compressor operating control method according to the preferred embodiment of the invention.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Combination mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Embodiments provide a kind of compressor operating and control device.This compressor operating controls device and is used for controlling
The operation of compressor in air-conditioning.
Fig. 1 is the structured flowchart that compressor operating according to embodiments of the present invention controls device.
As it is shown in figure 1, this compressor operating controls device includes detector unit 11, comparing unit 12 and control unit
13。
Detector unit 11 is for detecting pressure of inspiration(Pi) and/or the pressure at expulsion of compressor.Detector unit 11 can be pressure
Sensors etc. can be used for detecting the device of pressure, and specifically, detector unit 11 is the detection of detection suction pressure of compressor
Device, can be the detection device of detection Compressor Discharge Pressure, it is also possible to be can to detect compressor air suction pressure simultaneously
The detection device of power and pressure at expulsion.
Comparing unit 12, for pressure of inspiration(Pi) and/or pressure at expulsion being compared with default range of operation, is compared
Result.Default range of operation is the range of operation of compressor, and this default range of operation is included in the suction before compressor is opened
Atmospheric pressure and/or the scope of pressure at expulsion, pressure of inspiration(Pi) during compressor operating and/or the scope of pressure at expulsion and
The scope that the relation curve between pressure of inspiration(Pi) and pressure at expulsion during compressor operating is corresponding.Comparing unit 12
The margin value of the pressure of inspiration(Pi) of current compressor and/or pressure at expulsion with default range of operation can be compared, with than
Whether relatively pressure of inspiration(Pi) and/or pressure at expulsion be beyond presetting range of operation.Default range of operation can be default pressure of inspiration(Pi)
The range of operation of power, can be the range of operation of default pressure at expulsion, it is also possible to be default pressure of inspiration(Pi) and aerofluxus
The range of operation of the relation curve of pressure, if what detector unit 11 detected is the pressure of inspiration(Pi) of compressor, then compares
The pressure of inspiration(Pi) that detector unit 11 is detected by unit 12 compares with the range of operation of the pressure of inspiration(Pi) preset, as
Really what detector unit 11 detected is the pressure at expulsion of compressor, then detector unit 11 is detected by comparing unit 12
Pressure at expulsion compares with the range of operation of pressure at expulsion preset, if what detector unit 11 detected is compressor
Pressure of inspiration(Pi) and the relation curve of pressure at expulsion, then the compressor that detector unit 11 is detected by comparing unit 12
The relation curve of pressure of inspiration(Pi) and pressure at expulsion and the pressure of inspiration(Pi) preset and the range of operation of the relation curve of pressure at expulsion
Compare.
Control unit 13 for controlling the operation of compressor according to comparative result.Control unit 13 can be according to pressure of inspiration(Pi)
Power compares, with the range of operation of the pressure of inspiration(Pi) preset, the comparative result obtained, and controls the operation of compressor；Permissible
Range of operation according to pressure at expulsion with the pressure at expulsion preset compares the comparative result obtained, and controls compressor
Run；Can also be according to the relation curve of the pressure of inspiration(Pi) of compressor and pressure at expulsion and the pressure of inspiration(Pi) preset and aerofluxus
The range of operation of the relation curve of pressure compares the result obtained, and controls the operation of compressor.
Compressor operating in this embodiment controls in device, by entering the pressure of inspiration(Pi) of compressor and/or pressure at expulsion
Row detection, and testing result is compared with default range of operation, the fortune of compressor is then controlled according to comparative result
OK, owing to pressure of inspiration(Pi) and the pressure at expulsion of compressor are affected less by extraneous factor, and need not distinguish during use
Operational mode (refrigeration mode or heating mode), corresponds respectively to the equipment such as air-conditioning by pressure of inspiration(Pi) and pressure at expulsion
Saturation temperature value, directly controls the operation of compressor, substantially increases with the pressure of inspiration(Pi) of compressor and pressure at expulsion
The reliability of compressor operating.
Pressure of inspiration(Pi) and pressure at expulsion are corresponded respectively to the air-breathing of the saturation temperature value of the equipment such as air-conditioning, such as compressor
Pressure limit is P1 to P2, then corresponding pressure of inspiration(Pi) saturation temperature is T1 to T2 so that each pressure of inspiration(Pi)
Force value corresponds to an air-breathing saturation temperature value, and pressure at expulsion is corresponding with saturation temperature value in like manner.
Preferably, detector unit 11 may be used for before compressor starting up, the pressure of inspiration(Pi) of detection compressor and row
Atmospheric pressure, comparing unit 12 is used for judging that pressure of inspiration(Pi) or pressure at expulsion, whether beyond presetting range of operation, are judged
Result.What detector unit 11 detected is the pressure of inspiration(Pi) of compressor, then detector unit 11 is detected by comparing unit 12
To pressure of inspiration(Pi) compare with the range of operation of pressure of inspiration(Pi) preset, and judge that whether pressure of inspiration(Pi) is beyond presetting
The range of operation of pressure of inspiration(Pi)；If what detector unit 11 detected is the pressure at expulsion of compressor, then comparing unit
12 pressures at expulsion detector unit 11 detected compare with the range of operation of the pressure at expulsion preset, and judge
Whether pressure at expulsion exceeds the range of operation of the pressure at expulsion preset；If what detector unit 11 detected is compressor
Pressure of inspiration(Pi) and the relation curve of pressure at expulsion, the then suction of the compressor that detector unit 11 is detected by comparing unit 12
The relation curve of atmospheric pressure and pressure at expulsion enters with the range of operation of the pressure of inspiration(Pi) preset and the relation curve of pressure at expulsion
Row compares, and judges that whether the relation curve of pressure of inspiration(Pi) and pressure at expulsion is beyond the pressure of inspiration(Pi) preset and pressure at expulsion
The range of operation of relation curve.Control unit 13 is for running model at pressure of inspiration(Pi) and/or pressure at expulsion beyond presetting
When enclosing, forbid compressor start.When pressure of inspiration(Pi) is beyond the range of operation of the pressure of inspiration(Pi) preset, and pressure at expulsion exceeds
The range of operation of the pressure at expulsion preset and the relation curve of pressure of inspiration(Pi) and pressure at expulsion are beyond the pressure of inspiration(Pi) preset
During with the range of operation of the relation curve of pressure at expulsion, control unit 13 forbids compressor start.
Default range of operation in the present embodiment is the pressure of inspiration(Pi) before compressor is opened and/or the scope of pressure at expulsion.Pressure
Pressure of inspiration(Pi) and pressure at expulsion are detected before running by contracting machine by detector unit 11, and sentence through comparing unit 12
Have no progeny, in pressure of inspiration(Pi) and/or pressure at expulsion beyond when presetting range of operation, forbid compressor start, it is to avoid frequently
Open and close the generation of the situation of compressor.Such as, not to pressure of inspiration(Pi) and/or pressure at expulsion before compressor is opened
Carrying out the operations such as detection to control, after compressor is opened, pressure of inspiration(Pi) and/or pressure at expulsion have exceeded to be preset
Range of operation, needs the most again to be re-closing off compressor, the problem causing occurring frequently opening and closing compressor, this
Embodiment is it can be avoided that this type of situation occurs.In the present embodiment, pressure of inspiration(Pi) scope or pressure at expulsion scope corresponding be
Pressure of inspiration(Pi) or the maximum magnitude of pressure at expulsion self before compressor operating, such as, the pressure of inspiration(Pi) in compressor
Presetting range of operation is [P3, P4], i.e. when pressure of inspiration(Pi) is less than P3 or is more than P4, is and runs beyond presetting
Scope, now forbids compressor operating, and pressure at expulsion is in like manner.
Preferably, detector unit 11 may be used for when compressor operating, the pressure of inspiration(Pi) of detection compressor and exhaust pressure
Power, comparing unit 12 is used for judging that pressure of inspiration(Pi) or pressure at expulsion, whether beyond presetting range of operation, obtain judged result.
What detector unit 11 detected is the pressure of inspiration(Pi) of compressor, then the suction that detector unit 11 is detected by comparing unit 12
Atmospheric pressure compares with the range of operation of the pressure of inspiration(Pi) preset, and judges that whether pressure of inspiration(Pi) is beyond the air-breathing preset
The range of operation of pressure；If what detector unit 11 detected is the pressure at expulsion of compressor, then comparing unit 12 will
The pressure at expulsion that detector unit 11 detects compares with the range of operation of the pressure at expulsion preset, and judges exhaust pressure
Whether power exceeds the range of operation of the pressure at expulsion preset.Control unit 13 may be used in pressure of inspiration(Pi) and/or aerofluxus
Pressure, beyond when presetting range of operation, controls compressor out of service.When pressure of inspiration(Pi) is beyond the pressure of inspiration(Pi) preset
Range of operation, when pressure at expulsion exceeds the range of operation of the pressure at expulsion preset, control unit 13 controls compressor and stops
Run.
Detector unit 11 can detect pressure of inspiration(Pi) and pressure at expulsion in real time when compressor operating, and default range of operation is
The range of operation of the pressure of inspiration(Pi) during compressor operating, the range of operation of pressure at expulsion and compressor operating process
In pressure of inspiration(Pi) and pressure at expulsion between scope corresponding to relation curve.In the present embodiment, the operation of pressure of inspiration(Pi)
The range of operation of scope or pressure at expulsion correspondence respectively is pressure of inspiration(Pi) or pressure at expulsion self in compressor operating
Maximum magnitude, such as, the default range of operation of the pressure of inspiration(Pi) in compressor is [P5, P6], i.e. little when pressure of inspiration(Pi)
In P5 or more than P6 time, be beyond preset range of operation, now need close compressor, pressure at expulsion is in like manner.
Preferably, detector unit 11 may be used for when compressor operating, the pressure of inspiration(Pi) of detection compressor and exhaust pressure
Power, whether the relation that comparing unit 12 is used for judging between pressure of inspiration(Pi) and pressure at expulsion is in default range of operation.Ratio
The pressure of inspiration(Pi) of the relatively compressor that detector unit 11 is detected by unit 12 and the relation curve of pressure at expulsion with preset
The range of operation of the relation curve of pressure of inspiration(Pi) and pressure at expulsion compares, and judges pressure of inspiration(Pi) and pressure at expulsion
Whether relation curve is beyond the pressure of inspiration(Pi) preset and the range of operation of the relation curve of pressure at expulsion.Control unit 13
When may be used for the relation curve between pressure of inspiration(Pi) and pressure at expulsion beyond default range of operation, control compressor and stop
Only run, wherein, the difference of the margin value of the relation curve between pressure of inspiration(Pi) and pressure at expulsion and default range of operation
During less than preset difference value, control unit 13 is used for regulating pressure of inspiration(Pi) and/or pressure at expulsion.When pressure of inspiration(Pi) and aerofluxus
When the relation curve of pressure exceeds the range of operation of relation curve of pressure of inspiration(Pi) and the pressure at expulsion preset, control unit
13 control compressors are out of service.
Wherein, preset difference value can be set as required, and the relation between pressure of inspiration(Pi) and pressure at expulsion is with default
When range of operation is less than this preset difference value, namely the relation between pressure of inspiration(Pi) and pressure at expulsion is already close to default fortune
Line range, regulates pressure of inspiration(Pi) and/or pressure at expulsion now by control unit 13.If regulation pressure of inspiration(Pi) and/or
Still beyond presetting range of operation after pressure at expulsion, then stop compressor operating.
In the present embodiment, default range of operation is the pass between the pressure of inspiration(Pi) during compressor operating and pressure at expulsion
The scope that system is corresponding, wherein needs to meet certain dynamic linear relation, but inhales between pressure of inspiration(Pi) and pressure at expulsion
Atmospheric pressure and pressure at expulsion all within the maximum magnitude of above preferred embodiment, the most above-mentioned middle pressure of inspiration(Pi) maximum model
Enclose for [P5, P6], if pressure of inspiration(Pi) is Ps, pressure at expulsion is Pp, PsWith PpBetween meet PsAt [P5, P6]
In the range of, Pp≥C×PsDuring+D, then stop compressor operating, Pp=C×Ps+ D is pressure of inspiration(Pi) and pressure at expulsion
Relation curve.Wherein C and D is the fixing constant value that can set.In the preferred embodiment, pressure of inspiration(Pi) is in this
Within maximum magnitude.By controlling the dynamic linear relation between pressure of inspiration(Pi) and pressure at expulsion so that pressure of inspiration(Pi) and
Keep balance between pressure at expulsion, mutually restrict, it is to avoid cause due to inharmonious between pressure of inspiration(Pi) and pressure at expulsion
Compressor is controlled the generation of unbalance situation.
It is further preferred that when the difference of the relation between pressure of inspiration(Pi) and pressure at expulsion with the margin value of default range of operation
When value is less than preset difference value, control unit 13 by the aperture regulation pressure of inspiration(Pi) of regulation spray enthalpy electric expansion valve and/or
Pressure at expulsion.
It should be noted that the title of above-mentioned unit should not be interpreted as the restriction to this unit, such as, detection
Unit 11 can also be expressed as " for detecting the unit of pressure of inspiration(Pi) and/or pressure at expulsion ", and above-mentioned each unit title is only
It is to preferably describe this programme, this programme is not had improper restriction.
The embodiment of the present invention additionally provides a kind of compressor operating control method.This compressor operating control method operates in
Compressor operating controls on device.It should be noted that the compressor operating control method of the embodiment of the present invention can be led to
The compressor operating that crossing the embodiment of the present invention is provided controls device and performs, the compressor operating control of the embodiment of the present invention
Device processed can be used for performing the compressor operating control method that the embodiment of the present invention is provided.
Fig. 2 is compressor operating control method flow chart according to embodiments of the present invention.
As in figure 2 it is shown, this compressor operating control method comprises the following steps that
Step S201, the pressure of inspiration(Pi) of detection compressor and/or pressure at expulsion.
In this step, can be the pressure of inspiration(Pi) of detection compressor, can be the pressure at expulsion of detection compressor, it is possible to
To be detection pressure of inspiration(Pi) and pressure at expulsion simultaneously, and obtain the curve linear relationship between pressure of inspiration(Pi) and pressure at expulsion.
Step S202, compares pressure of inspiration(Pi) and/or pressure at expulsion with default range of operation, obtains comparative result.
Default range of operation is the range of operation of compressor, and this default range of operation is included in the air-breathing before compressor is opened
Pressure and/or the scope of pressure at expulsion, pressure of inspiration(Pi) during compressor operating and/or the scope of pressure at expulsion and pressure
The scope that the relation curve between pressure of inspiration(Pi) and pressure at expulsion in contracting machine running is corresponding.Comparing unit 12 is permissible
The margin value of the pressure of inspiration(Pi) of current compressor and/or pressure at expulsion with default range of operation is compared, to compare suction
Whether atmospheric pressure and/or pressure at expulsion be beyond presetting range of operation.Default range of operation can be default pressure of inspiration(Pi)
Range of operation, can be the range of operation of default pressure at expulsion, it is also possible to be default pressure of inspiration(Pi) and pressure at expulsion
The range of operation of relation curve, if what detector unit 11 detected is the pressure of inspiration(Pi) of compressor, then comparing unit
12 pressures of inspiration(Pi) detector unit 11 detected compare with the range of operation of the pressure of inspiration(Pi) preset, if inspection
What survey unit 11 detected is the pressure at expulsion of compressor, then the aerofluxus that detector unit 11 is detected by comparing unit 12
Pressure compares with the range of operation of pressure at expulsion preset, if what detector unit 11 detected is the suction of compressor
Atmospheric pressure and the relation curve of pressure at expulsion, the then air-breathing of the compressor that detector unit 11 is detected by comparing unit 12
The relation curve of pressure and pressure at expulsion is carried out with the range of operation of the pressure of inspiration(Pi) preset and the relation curve of pressure at expulsion
Relatively.
Step S203, controls the operation of compressor according to comparative result.
In this step S203, can compare according to pressure of inspiration(Pi) and the range of operation of pressure of inspiration(Pi) preset and to obtain
Comparative result, controls the operation of compressor；Can carry out according to the range of operation of pressure at expulsion with the pressure at expulsion preset
The comparative result relatively obtained, controls the operation of compressor；Can also be according to the pressure of inspiration(Pi) of compressor and pressure at expulsion
The range of operation of relation curve of relation curve and the pressure of inspiration(Pi) preset and pressure at expulsion compare the knot obtained
Really, the operation of compressor is controlled.Control the operation of compressor according to comparative result, the operation controlling compressor includes:
Before compressor is opened, control compressor and open or forbid that compressor is opened；In compressor operating, control compressor and continue
Reforwarding row or close compressor.
By the compressor operating control method of the present embodiment, directly pressure of inspiration(Pi) and pressure at expulsion with compressor controls
The operation of compressor, reduces the impact of extraneous factor, substantially increases the reliability of compressor operating.
Preferably, before compressor starting up, the pressure of inspiration(Pi) of detection compressor and pressure at expulsion, wherein by air-breathing
Pressure and/or pressure at expulsion compare with default range of operation, obtain comparative result and include: judge pressure of inspiration(Pi) or row
Atmospheric pressure, whether beyond presetting range of operation, obtains judged result.Detect is the pressure of inspiration(Pi) of compressor, then will
The pressure of inspiration(Pi) detected compares with the range of operation of the pressure of inspiration(Pi) preset, and judges whether pressure of inspiration(Pi) exceeds
The range of operation of the pressure of inspiration(Pi) preset；If be detected that be the pressure at expulsion of compressor, then the aerofluxus that will detect
Pressure compares with the range of operation of the pressure at expulsion preset, and judges that whether pressure at expulsion is beyond the exhaust pressure preset
The range of operation of power.The operation controlling compressor according to comparative result includes: if pressure of inspiration(Pi) and/or pressure at expulsion surpass
Go out default range of operation, then forbid compressor start.When pressure of inspiration(Pi) is beyond the range of operation of the pressure of inspiration(Pi) preset,
Pressure at expulsion exceeds pre-beyond the range of operation of the pressure at expulsion preset and the relation curve of pressure of inspiration(Pi) and pressure at expulsion
If pressure of inspiration(Pi) and during the range of operation of relation curve of pressure at expulsion, forbid compressor start.
Default range of operation in the present embodiment is the pressure of inspiration(Pi) before compressor is opened and/or the scope of pressure at expulsion.Pressure
Contracting machine runs front by detecting pressure of inspiration(Pi) and pressure at expulsion, and after judging, controls compressor in air-breathing
When pressure and/or pressure at expulsion are beyond default range of operation, No starting.Avoid and frequently open and close compressor
The generation of situation.
Preferably, when compressor operating, the pressure of inspiration(Pi) of detection compressor and pressure at expulsion, wherein: by pressure of inspiration(Pi)
Power and/or pressure at expulsion compare with default range of operation, obtain comparative result and include: judge pressure of inspiration(Pi) or aerofluxus
Pressure, whether beyond presetting range of operation, obtains judged result.Detect is the pressure of inspiration(Pi) of compressor, then will inspection
The pressure of inspiration(Pi) measured compares with the range of operation of the pressure of inspiration(Pi) preset, and judges that whether pressure of inspiration(Pi) is beyond pre-
If the range of operation of pressure of inspiration(Pi)；If be detected that be the pressure at expulsion of compressor, then the exhaust pressure that will detect
Power compares with the range of operation of the pressure at expulsion preset, and judges that whether pressure at expulsion is beyond the pressure at expulsion preset
Range of operation.The operation controlling compressor according to comparative result includes: if pressure of inspiration(Pi) and/or pressure at expulsion exceed
Preset range of operation, then control compressor out of service.When pressure of inspiration(Pi) is beyond the range of operation of the pressure of inspiration(Pi) preset,
When pressure at expulsion exceeds the range of operation of the pressure at expulsion preset, control compressor out of service.
Default range of operation is the scope of the pressure of inspiration(Pi) during compressor operating and/or pressure at expulsion, wherein, air-breathing
The default range of operation of pressure correspondence pressure of inspiration(Pi), the default range of operation of pressure at expulsion correspondence pressure at expulsion, work as air-breathing
When pressure is beyond the default range of operation of pressure of inspiration(Pi), or pressure at expulsion beyond the default range of operation of pressure at expulsion time,
All will stop the operation of compressor.In the present embodiment, pressure of inspiration(Pi) scope or pressure at expulsion scope corresponding be compressor
Pressure of inspiration(Pi) or the maximum magnitude of pressure at expulsion self in operation.
Preferably, when compressor operating, the pressure of inspiration(Pi) of detection compressor and pressure at expulsion, wherein: by pressure of inspiration(Pi)
Power and/or pressure at expulsion compare with default range of operation, obtain comparative result and include: judge pressure of inspiration(Pi) and aerofluxus
Whether the relation between pressure is in default range of operation, and the operation controlling compressor according to comparative result includes: if
Relation between pressure of inspiration(Pi) and pressure at expulsion beyond presetting range of operation, then controls compressor out of service, if inhaled
Relation between atmospheric pressure and pressure at expulsion is less than preset difference value with the difference of the margin value of default range of operation, then regulate
Pressure of inspiration(Pi) and/or pressure at expulsion.When the relation curve of pressure of inspiration(Pi) and pressure at expulsion is beyond the pressure of inspiration(Pi) preset and row
During the range of operation of the relation curve of atmospheric pressure, it is out of service that control unit 13 controls compressor.
Wherein, preset difference value can be set as required, and the relation between pressure of inspiration(Pi) and pressure at expulsion is with default
When range of operation is less than this preset difference value, namely the relation between pressure of inspiration(Pi) and pressure at expulsion is already close to default fortune
Line range, regulates pressure of inspiration(Pi) and/or pressure at expulsion now by control unit 13.If regulation pressure of inspiration(Pi) and/or
Still beyond presetting range of operation after pressure at expulsion, then stop compressor operating.
By controlling the dynamic linear relation between pressure of inspiration(Pi) and pressure at expulsion so that pressure of inspiration(Pi) and pressure at expulsion it
Between keep balance, mutually restrict, it is to avoid cause compressor due to inharmonious between pressure of inspiration(Pi) and pressure at expulsion
Control the generation of unbalance situation.
Preferably, by aperture regulation pressure of inspiration(Pi) and/or the pressure at expulsion of regulation spray enthalpy electric expansion valve.
According to embodiments of the invention and the description of preferred embodiment, when compressor is different, permissible
Compressor is directly controlled by pressure of inspiration(Pi) and/or pressure at expulsion according to compressor.
Before compressor is opened, the pressure of inspiration(Pi) of detection compressor and pressure at expulsion, when the air-breathing this compressor being detected
Saturation temperature Tp corresponding to the pressure at expulsion of saturation temperature Ts that pressure is corresponding≤T1 DEG C or this compressor≤T2 DEG C,
This compressor does not starts.Wherein, the least limit temperature controlled is needed before T1 DEG C and T2 DEG C corresponding compressor start respectively
Value.
When compressor operating:
As saturation temperature Ts ＜ T3 DEG C that pressure of inspiration(Pi) compressor being detected is corresponding, or the air-breathing of compressor detected
Saturation temperature Ts ＞ T5 DEG C that pressure is corresponding, compressor is directly closed.When wherein T3 DEG C and T5 DEG C are compressor operating
The corresponding air-breathing saturation limit temperature value needing to control.
When detecting that the saturation temperature that pressure of inspiration(Pi) is corresponding meets T3 DEG C≤Ts≤T4 DEG C, and the pressure at expulsion of correspondence is corresponding
Saturation temperature Tp >=A × Ts+B, then compressor is directly closed.Tp >=A × Ts+B is corresponding saturated of pressure of inspiration(Pi)
When temperature meets T3 DEG C≤Ts≤T4 DEG C of condition, the saturated temperature that saturation temperature corresponding to pressure at expulsion is corresponding with pressure of inspiration(Pi)
Dynamic linear relational expression corresponding between degree, wherein A and B is the constant value that can set.
When detecting that the saturation temperature that pressure of inspiration(Pi) is corresponding meets T4 DEG C of ＜ Ts≤T5 DEG C, and the compressor air-discharging pressure of correspondence
Saturation temperature Tp corresponding to power >=T6 DEG C, then compressor is directly closed.T6 DEG C is that the saturation temperature that pressure of inspiration(Pi) is corresponding is full
During foot T4 DEG C of ＜ Ts≤T5 DEG C of condition, the saturation temperature ultimate value that saturation temperature corresponding to pressure at expulsion is corresponding.
Fig. 3 is the flow chart of compressor operating control method according to the preferred embodiment of the invention.The compression of this embodiment
Machine progress control method can be as the preferred implementation of embodiment illustrated in fig. 2.
As it is shown on figure 3, the compressor operating control method of the embodiment of the present invention includes:
Step S301, the pressure of inspiration(Pi) of detection compressor and exhaust pressure value.
In this step, both can be the pressure of inspiration(Pi) only detecting compressor, can be exhaust pressure compressor being detected
Power, it is also possible to be the curve linear relationship being detected simultaneously by between pressure of inspiration(Pi) and pressure at expulsion.
Step S302, when compressor is closed, it is judged that whether pressure of inspiration(Pi) force value and exhaust pressure value exceed is preset range of operation,
This default range of operation is before compressor is opened, the range of operation of the default pressure of inspiration(Pi) that pressure of inspiration(Pi) is corresponding or aerofluxus
The range of operation of the default pressure at expulsion that pressure is corresponding.If pressure of inspiration(Pi) beyond preset pressure of inspiration(Pi) range of operation or
Person's pressure at expulsion is beyond the range of operation of default pressure at expulsion, then compressor remains off, and continues detection pressure
The pressure of inspiration(Pi) of contracting machine and pressure at expulsion.
Step S303, if pressure of inspiration(Pi) without departing from the range of operation of suction pressure of compressor or pressure at expulsion without departing from
The range of operation of Compressor Discharge Pressure, then open compressor.
Step S304, according to pressure of inspiration(Pi), pressure at expulsion, the aperture of regulation compressor spray enthalpy electric expansion valve controls
The pressure of inspiration(Pi) of compressor and pressure at expulsion, make compressor run in the range of being maintained at operation curve.
Operation curve scope be compressor under normal operation, its pressure of inspiration(Pi) and the maximum range of operation of pressure at expulsion,
Only when the pressure of inspiration(Pi) of compressor and pressure at expulsion are under this scope, and compressor could run, and goes beyond the scope, and stops
Compressor.
Step S305, when compressor is opened, it is judged that whether pressure of inspiration(Pi) force value and exhaust pressure value run model beyond presetting
Enclose.
This default range of operation is in compressor operating, the range of operation of the default pressure of inspiration(Pi) that pressure of inspiration(Pi) is corresponding, row
The range of operation of default pressure at expulsion that atmospheric pressure is corresponding and the pressure of inspiration(Pi) of compressor and the relation curve of pressure at expulsion
The corresponding pressure of inspiration(Pi) preset and the range of operation of the relation curve of pressure at expulsion.If pressure of inspiration(Pi) is inhaled beyond presetting
The range of operation of atmospheric pressure, or pressure at expulsion is beyond the range of operation of default pressure at expulsion, or the air-breathing of compressor
The relation curve of pressure and pressure at expulsion exceeds the range of operation of the relation curve of pressure of inspiration(Pi) and the pressure at expulsion preset,
Then close compressor；If all without departing from default range of operation, then according to pressure of inspiration(Pi), pressure at expulsion, regulation compression
The aperture of machine spray enthalpy electric expansion valve controls pressure of inspiration(Pi) and the pressure at expulsion of compressor, makes compressor be maintained at as far as possible
Run in the range of operation curve.
By the embodiment of the present invention, improve the reliability of compressor operating.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art
For Yuan, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made is any
Amendment, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (8)
1. a compressor operating control method, it is characterised in that including:
The pressure of inspiration(Pi) of detection compressor and/or pressure at expulsion；
Described pressure of inspiration(Pi) and/or described pressure at expulsion are compared with default range of operation, obtains comparing knot
Really；And
The operation of described compressor is controlled according to described comparative result,
Wherein, when described compressor operating, detect pressure of inspiration(Pi) and the pressure at expulsion of described compressor, wherein:
Described pressure of inspiration(Pi) and/or described pressure at expulsion are compared with default range of operation, obtains comparative result
Including: judge the relation between described pressure of inspiration(Pi) and described pressure at expulsion whether in described default range of operation,
According to described comparative result control described compressor operation include: if it is judged that described pressure of inspiration(Pi) and
Relation between described pressure at expulsion exceeds described default range of operation, then control described compressor out of service,
If the difference of the margin value of the relation between described pressure of inspiration(Pi) and described pressure at expulsion and described default range of operation
Value less than preset difference value, then regulates described pressure of inspiration(Pi) and/or described pressure at expulsion.
Compressor operating control method the most according to claim 1, it is characterised in that open in the start of described compressor
Before Dong, detect pressure of inspiration(Pi) and the pressure at expulsion of described compressor, wherein:
Described pressure of inspiration(Pi) and/or described pressure at expulsion are compared with default range of operation, obtains comparative result
Including: judge that described pressure of inspiration(Pi) or described pressure at expulsion, whether beyond presetting range of operation, obtain judged result；
According to described comparative result control described compressor operation include: if it is judged that described pressure of inspiration(Pi) and/
Or described pressure at expulsion is beyond described default range of operation, then forbid described compressor start.
Compressor operating control method the most according to claim 1, it is characterised in that when described compressor operating,
Detect pressure of inspiration(Pi) and the pressure at expulsion of described compressor, wherein:
Described pressure of inspiration(Pi) and/or described pressure at expulsion are compared with default range of operation, obtains comparative result
Including: judge that described pressure of inspiration(Pi) or described pressure at expulsion, whether beyond presetting range of operation, obtain judged result；
According to described comparative result control described compressor operation include: if it is judged that described pressure of inspiration(Pi) and/
Or described pressure at expulsion is beyond described default range of operation, then control described compressor out of service.
Compressor operating control method the most according to claim 3, it is characterised in that swollen by regulation spray enthalpy electronics
The aperture of swollen valve regulates described pressure of inspiration(Pi) and/or described pressure at expulsion.
5. a compressor operating controls device, it is characterised in that including:
Detector unit, for detecting pressure of inspiration(Pi) and/or the pressure at expulsion of compressor；
Comparing unit, for comparing described pressure of inspiration(Pi) and/or described pressure at expulsion with default range of operation
Relatively, comparative result is obtained；And
Control unit, for controlling the operation of described compressor according to described comparative result,
Wherein, described detector unit, for when described compressor operating, detects the pressure of inspiration(Pi) of described compressor
And pressure at expulsion, wherein:
Whether the relation that described comparing unit is used for judging between described pressure of inspiration(Pi) and described pressure at expulsion is described
Preset in range of operation,
Described control unit is preset beyond described for the relation between described pressure of inspiration(Pi) and described pressure at expulsion
During range of operation, control described compressor out of service,
Wherein, the relation between described pressure of inspiration(Pi) and described pressure at expulsion and the margin of described default range of operation
When the difference of value is less than preset difference value, described control unit is used for regulating described pressure of inspiration(Pi) and/or described exhaust pressure
Power.
Compressor operating the most according to claim 5 controls device, it is characterised in that described detector unit is used for
Before described compressor starting up, detect pressure of inspiration(Pi) and the pressure at expulsion of described compressor, wherein:
Described comparing unit is used for judging that whether described pressure of inspiration(Pi) or described pressure at expulsion are beyond described default operation
Scope, obtains judged result；
Described control unit is for exceeding described default operation model at described pressure of inspiration(Pi) and/or described pressure at expulsion
When enclosing, forbid described compressor start.
Compressor operating the most according to claim 5 controls device, it is characterised in that described detector unit is used for
During described compressor operating, detect pressure of inspiration(Pi) and the pressure at expulsion of described compressor, wherein:
Described comparing unit is used for judging whether described pressure of inspiration(Pi) or described pressure at expulsion run model beyond presetting
Enclose, obtain judged result；
Described control unit is for exceeding described default operation model at described pressure of inspiration(Pi) and/or described pressure at expulsion
When enclosing, control described compressor out of service.
Compressor operating the most according to claim 5 controls device, it is characterised in that described control unit is by adjusting
The aperture of joint spray enthalpy electric expansion valve regulates described pressure of inspiration(Pi) and/or described pressure at expulsion.
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| CN105650827B (en) * | 2016-03-02 | 2019-01-25 | 珠海格力电器股份有限公司 | A kind of adaptive failure progress control method, system and air-conditioner set |
| CN106196721B (en) * | 2016-07-04 | 2018-02-16 | 珠海格力电器股份有限公司 | One kind spray enthalpy compressor air-conditioning system and its control method |
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| CN109654780B (en) * | 2016-10-31 | 2020-04-10 | 珠海格力电器股份有限公司 | Control method for controlling operation of compressor and heat pump unit |
| CN106801954B (en) * | 2017-01-04 | 2019-07-23 | 海信（山东）空调有限公司 | A kind of Gas-supplying enthalpy-increasing system and its control method, air conditioner |
| CN107883625B (en) * | 2017-11-18 | 2020-08-25 | 山东阿尔普尔节能装备有限公司 | Low-temperature heat pump air-supplementing enthalpy-increasing compression ratio control method |
| CN109356854B (en) | 2018-10-19 | 2019-12-27 | 珠海格力电器股份有限公司 | Variable volume compressor operation mode judgment method and equipment, variable volume compressor and air conditioner |
| WO2020103666A1 (en) * | 2018-11-19 | 2020-05-28 | 艾默生环境优化技术(苏州)有限公司 | Control system having both electronic control mode and mechanical control mode, and condensing unit |
| CN109855337A (en) * | 2019-02-18 | 2019-06-07 | 珠海格力电器股份有限公司 | A kind of Differential pressure control method, device and the equipment of effective protection compressor |
| CN112664455B (en) * | 2019-10-15 | 2023-02-21 | 广东芬尼克兹节能设备有限公司 | Lubrication adjusting method and device for compressor, electronic equipment and storage medium |
| CN114484759A (en) * | 2022-01-27 | 2022-05-13 | 青岛海尔空调电子有限公司 | Method and device for preventing compressor from desynchronizing and compressor |
| CN115164525A (en) * | 2022-06-27 | 2022-10-11 | 青岛海尔空调电子有限公司 | Detection method for drying system, storage medium and drying system |
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