CN105928277A - Control method and system of electromagnetic valve for air conditioner liquid injecting cooling and air conditioner - Google Patents
Control method and system of electromagnetic valve for air conditioner liquid injecting cooling and air conditioner Download PDFInfo
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- CN105928277A CN105928277A CN201610297649.3A CN201610297649A CN105928277A CN 105928277 A CN105928277 A CN 105928277A CN 201610297649 A CN201610297649 A CN 201610297649A CN 105928277 A CN105928277 A CN 105928277A
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- Prior art keywords
- electromagnetic valve
- temperature
- control unit
- compressor
- air
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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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
- F25B2500/00—Problems to be solved
- F25B2500/16—Lubrication
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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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2116—Temperatures of a condenser
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention provides a control method of an electromagnetic valve for air conditioner liquid injecting cooling. An air conditioner comprises a control unit and the electromagnetic valve used for controlling liquid refrigerants of a compressor of the air conditioner to be bypassed to the low-pressure side of the compressor. The control unit is used for controlling the electromagnetic valve to be opened and closed. The control unit controls the electromagnetic valve to be opened and closed according to the magnitude relation of the exhaust temperature T1 of the compressor and the exhaust temperature preset value and/or the magnitude relation of the exhaust superheat degree of the compressor of the control unit and the preset temperature value. The electromagnetic valve is controlled to be opened and closed by increasing the magnitude relation of the exhaust superheat degree and the preset temperature value. Thus, compressor oil has a good lubrication effect, the service life of the compressor is prolonged, and the reliability of the compressor is improved.
Description
Technical field
The present invention relates to air conditioner controlling technology field, particularly a kind of air-conditioning Liquid injection cooling electromagnetic valve controlling party
Method, system and air-conditioning.
Background technology
Air-conditioning technical is for the reliability service of high-temperature refrigeration at present, can increase Liquid injection cooling in air conditioning system
Control.
Liquid injection cooling is exactly a kind of by the method for liquid refrigerant to system low-voltage side (air return end), in
Chien shih controls to open and close with electromagnetic valve.
The effect of Liquid injection cooling is exactly effectively to limit delivery temperature, prevents compressor winding overheated, and lubricating oil is disliked
Changing, insulant is aging.Current air-conditioning products mainly uses delivery temperature to control the unlatching of electromagnetic valve,
The reliability that electromagnetic valve is controlled is poor, the most perfect.
Summary of the invention
The present invention provides a kind of air-conditioning Liquid injection cooling electromagnetic valve control method, system and air-conditioning, on solving
State the technical problem that the reliability of electromagnetic valve control is poor, the most perfect.
In order to solve above-mentioned technical problem, the present invention provides a kind of air-conditioning Liquid injection cooling electromagnetic valve controlling party
Method, described air-conditioning includes control unit, and is used for controlling compressor of air conditioner liquid refrigerant to compression
The electromagnetic valve of machine low-pressure side, described control unit is used for controlling the opening and closing of electromagnetic valve,
Described control unit is according to the magnitude relationship of compressor exhaust temperature T1 Yu delivery temperature preset value；
And/or,
The described control unit compressor air-discharging degree of superheat and preset temperature magnitude relationship extremely；
Control the opening and closing of described electromagnetic valve.
The invention has the beneficial effects as follows: control with preset temperature magnitude relationship extremely by increasing discharge superheat
The opening and closing of described electromagnetic valve；Make compressor oil has good lubrication, improves compressor
Service life and reliability.
Further, described delivery temperature preset value includes first exhaust temperature preset value A1 and second exhaust temperature
Preset value A2, wherein, A1 >=A2；
Described control unit is according to the magnitude relationship of described compressor exhaust temperature T1 Yu delivery temperature preset value
The concrete operations of the opening and closing controlling described electromagnetic valve are:
As T1 ＞ A1, described control unit opens described electromagnetic valve；
As T1 ＜ A2, described control unit closes described electromagnetic valve.
Using above-mentioned further scheme to provide the benefit that: as T1 ＞ A1, control unit opens described electromagnetism
Valve；As T1 ＜ A2, control unit closes described electromagnetic valve；By arranging different delivery temperature preset values,
The control making electromagnetic valve is the most accurate and reliable.
Further, the described compressor air-discharging degree of superheat includes that compressor exhaust temperature T1 is corresponding with condensing pressure full
With the first temperature approach △ T1 of temperature Tc, and compressor exhaust temperature T1 and compressor condense side pipe temperature T3
The second temperature approach △ T1；
Described default temperature approach includes that first presets temperature approach and second and preset temperature approach；
The described compressor air-discharging degree of superheat and the magnitude relationship of default temperature approach, control the unlatching of described electromagnetic valve
Specifically include with closedown:
The magnitude relationship of temperature approach is preset according to the first temperature approach △ T1 and first；
And/or
The magnitude relationship of temperature approach is preset according to the second temperature approach △ T2 and second；
Control the opening and closing of described electromagnetic valve.
Above-mentioned further scheme is used to provide the benefit that: to preset the temperature difference according to the first temperature approach △ T1 and first
The magnitude relationship of value；And/or, the magnitude relationship of temperature approach is preset according to the second temperature approach △ T2 and second,
Control the opening and closing of electromagnetic valve；Come from the magnitude relationship of different default temperature approach by two temperature approach
Control the opening and closing of electromagnetic valve, improve the service life of compressor.
Further, described first presets temperature approach includes B1 and B2, wherein, and B1 >=B2,
The magnitude relationship presetting temperature approach according to the first temperature approach △ T1 and first controls opening of described electromagnetic valve
The concrete operations opened and close are:
As △ T1 ＞ B1, described control unit opens described electromagnetic valve；
As △ T1 ＜ B2, described control unit closes described electromagnetic valve.
Using above-mentioned further scheme to provide the benefit that: as △ T1 ＞ B1, described control unit opens institute
State electromagnetic valve；As △ T1 ＜ B1, described control unit closes described electromagnetic valve；Guarantee that compressor is in
Good duty.
Further, described second presets temperature approach includes C1 and C2, wherein, and C1 >=C2,
The described magnitude relationship described electromagnetic valve of control presetting temperature approach according to the second temperature approach △ T2 and second
The concrete operations of opening and closing be:
As △ T2 ＞ C1, described control unit opens described electromagnetic valve；
As △ T2 ＜ C2, described control unit closes described electromagnetic valve.
Using above-mentioned further scheme to provide the benefit that: as △ T2 ＞ C1, described control unit opens institute
State electromagnetic valve；As △ T2 ＜ C2, described control unit closes described electromagnetic valve；Guarantee that compressor is in
Good duty.
The present invention also provides for a kind of air-conditioning Liquid injection cooling electromagnetic valve controlling system, and described air-conditioning includes controlling list
Unit, and for controlling the compressor of air conditioner liquid refrigerant electromagnetic valve to compressor low-pressure side, described
Control unit is for controlling the opening and closing of electromagnetic valve, and described control unit includes solenoid valve control module,
Described solenoid valve control module, is used for
Described control unit is according to the magnitude relationship of compressor exhaust temperature T1 Yu delivery temperature preset value；
And/or,
The described control unit compressor air-discharging degree of superheat and preset temperature magnitude relationship extremely；
Control the opening and closing of described electromagnetic valve.
Electromagnetic valve controlling system of the present invention provides the benefit that: electromagnetic valve controlling system is by increasing discharge superheat
Degree and preset temperature magnitude relationship extremely controls the opening and closing of described electromagnetic valve；Make compressor oil has
Good lubrication, improves service life and the reliability of compressor of air conditioner.
Further, described delivery temperature preset value includes first exhaust temperature preset value A1 and second exhaust temperature
Preset value A2, wherein, A1 >=A2；
In described solenoid valve control module, for described control unit according to described compressor exhaust temperature T1
The concrete operations of the opening and closing with the magnitude relationship of the delivery temperature preset value described electromagnetic valve of control are:
As T1 ＞ A1, described control unit opens described electromagnetic valve；
As T1 ＜ A2, described control unit closes described electromagnetic valve.
Above-mentioned further scheme is used to provide the benefit that: in solenoid valve control module, as T1 ＞ A1,
Control unit opens described electromagnetic valve；As T1 ＜ A2, control unit closes described electromagnetic valve；By arranging
Different delivery temperature preset values, the control making electromagnetic valve is the most accurate and reliable.
Further, the described compressor air-discharging degree of superheat includes that compressor exhaust temperature T1 is corresponding with condensing pressure full
With the first temperature approach △ T1 of temperature Tc, and compressor exhaust temperature T1 and compressor condense side pipe temperature T3
The second temperature approach △ T1；
Described default temperature approach includes that first presets temperature approach and second and preset temperature approach；
In described solenoid valve control module, for the size of the described compressor air-discharging degree of superheat Yu default temperature approach
Relation, the opening and closing controlling described electromagnetic valve specifically include:
The magnitude relationship of temperature approach is preset according to the first temperature approach △ T1 and first；
And/or
The magnitude relationship of temperature approach is preset according to the second temperature approach △ T2 and second；
Control the opening and closing of described electromagnetic valve.
Above-mentioned further scheme is used to provide the benefit that: in solenoid valve control module, according to first temperature difference
Value △ T1 and first presets the magnitude relationship of temperature approach；And/or, pre-according to the second temperature approach △ T2 and second
If the magnitude relationship of temperature approach, control the opening and closing of electromagnetic valve；Pre-from different by two temperature approach
If the magnitude relationship of temperature approach controls the opening and closing of electromagnetic valve, improve the service life of compressor.
Further, described first presets temperature approach includes B1 and B1, wherein, and B1 >=B2,
In described solenoid valve control module, for presetting the big of temperature approach according to the first temperature approach △ T1 and first
The concrete operations of the opening and closing that little relation controls described electromagnetic valve are:
As △ T1 ＞ B1, described control unit opens described electromagnetic valve；
As △ T1 ＜ B1, described control unit closes described electromagnetic valve.
Above-mentioned further scheme is used to provide the benefit that: in solenoid valve control module, as △ T1 ＞ B1
Time, described control unit opens described electromagnetic valve；As △ T1 ＜ B1, described control unit closes described electricity
Magnet valve；Guarantee that compressor is in optimum Working.
Further, described second presets temperature approach includes C1 and C2, wherein, and C1 >=C2,
Described second presets temperature approach includes C1 and C2, wherein, and C1 >=C2,
In described solenoid valve control module, preset temperature approach for described according to the second temperature approach △ T2 and second
Magnitude relationship control the concrete operations of opening and closing of described electromagnetic valve and be:
As △ T2 ＞ C1, described control unit opens described electromagnetic valve；
As △ T2 ＜ C2, described control unit closes described electromagnetic valve.
Above-mentioned further scheme is used to provide the benefit that: in solenoid valve control module, as △ T2 ＞ C1
Time, described control unit opens described electromagnetic valve；As △ T2 ＜ C2, described control unit closes described electricity
Magnet valve；Guarantee that compressor is in optimum Working.
The present invention also provides for a kind of air-conditioning, including for controlling liquid refrigerant to compressor low-pressure side
Electromagnetic valve, and for controlling the control unit that described electromagnetic valve opens and closes, described control unit includes
The air-conditioning Liquid injection cooling electromagnetic valve controlling system stated.
Air-conditioning of the present invention provides the benefit that: the electromagnetic valve controlling system in air-conditioning is by increasing discharge superheat
With the opening and closing that preset temperature magnitude relationship extremely controls described electromagnetic valve；Make having of compressor oil good
Good lubrication, improves service life and the reliability of compressor of air conditioner.
Accompanying drawing explanation
Fig. 1 is that air conditioner electric magnet valve of the present invention opens control flow chart,
Fig. 2 is air conditioner electric magnet valve closing control flow chart of the present invention.
Detailed description of the invention
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
Electromagnetic valve of the present invention is opened control flow chart and is seen Fig. 1, and air-conditioning includes control unit, and is used for controlling
Compressor of air conditioner liquid refrigerant processed is used for controlling electricity to the electromagnetic valve of compressor low-pressure side, control unit
The opening and closing of magnet valve,
Control unit is according to the magnitude relationship of compressor exhaust temperature T1 Yu delivery temperature preset value；
And/or,
The control unit compressor air-discharging degree of superheat and preset temperature magnitude relationship extremely；
Control the opening and closing of electromagnetic valve.
The opening and closing of electromagnetic valve are controlled by increasing discharge superheat and preset temperature magnitude relationship extremely；
Make compressor oil has good lubrication, improves service life and the reliability of compressor.
In a particular embodiment, delivery temperature preset value includes first exhaust temperature preset value A1 and second exhaust
Temperature preset value A2, wherein, A1 >=A2；
As T1 ＞ A1, control unit opens solenoid valve.
Wherein, the compressor air-discharging degree of superheat includes compressor exhaust temperature T1 saturation temperature corresponding with condensing pressure
The first temperature approach △ T1 of Tc, and compressor exhaust temperature T1 is warm with the second of compressor condensation side pipe temperature T3
Difference △ T1；
Default temperature approach includes that first presets temperature approach and second and preset temperature approach；Wherein, first the temperature difference is preset
Value includes B1 and B2, wherein, and B1 >=B2；Second presets temperature approach includes C1 and C2, wherein, and C1 >=C2；
As △ T1 ＞ B1, control unit opens solenoid valve；As △ T2 ＞ C1, control unit opens electromagnetism
Valve.
The magnitude relationship of temperature approach is preset according to the first temperature approach △ T1 and first；And/or, according to the second temperature
Difference △ T2 and second presets the magnitude relationship of temperature approach, controls the opening and closing of electromagnetic valve；By two
Temperature approach controls the unlatching of electromagnetic valve from the magnitude relationship of different default temperature approach, improves compressor
Service life.
Air conditioner electric magnet valve closing control flow chart of the present invention sees Fig. 2, with air conditioner electric magnet valve closing control flow process
Comparing, as T1 ＜ A2, control unit closes electromagnetic valve；
And/or,
As △ T1 ＜ B2, control unit closes electromagnetic valve；
And/or,
As △ T2 ＜ C2, control unit closes electromagnetic valve.
The magnitude relationship of temperature approach is preset according to the first temperature approach △ T1 and first；And/or, according to the second temperature
Difference △ T2 and second presets the magnitude relationship of temperature approach, controls closedown and the closedown of electromagnetic valve；By two
Temperature approach controls the closedown of electromagnetic valve from the magnitude relationship of different default temperature approach, improves compressor
Service life.
In a particular embodiment, above-mentioned parameter meets: 90 DEG C≤A1≤120 DEG C, 60 DEG C≤A2≤90 DEG C,
30 DEG C≤B1≤50 DEG C, 15 DEG C≤B2≤30 DEG C, 30 DEG C≤C1≤50 DEG C, 15 DEG C≤C2≤30 DEG C.So that
It is the most accurate that electromagnetic valve controls.
In the first embodiment, A1=100 DEG C, A2=70 DEG C, B1=45 DEG C, B2=20 DEG C, C1=42 DEG C,
C2=25 DEG C.
T1=110 DEG C, Tc=70 DEG C, due to T1=110 DEG C of ＞ A1=100 DEG C, so, control unit opens electricity
Magnet valve.
In a second embodiment, T1=110 DEG C, Tc=60 DEG C, due to T1=110 DEG C of ＞ A1=100 DEG C, so,
Control unit opens solenoid valve.
Meanwhile, the compressor air-discharging degree of superheat includes compressor exhaust temperature T1 saturation temperature corresponding with condensing pressure
First temperature approach △ of Tc T1=110 DEG C-60 DEG C=50 DEG C, T1=50 DEG C of ＞ of △ B1=45 DEG C, so, control single
Unit's opens solenoid valve.
The embodiment of the present invention also provides for a kind of air-conditioning Liquid injection cooling electromagnetic valve controlling system, and air-conditioning includes controlling
Unit, and for controlling the compressor of air conditioner liquid refrigerant electromagnetic valve to compressor low-pressure side, control
Unit processed is for controlling the opening and closing of electromagnetic valve, and control unit includes solenoid valve control module,
Solenoid valve control module, is used for
Control unit is according to the magnitude relationship of compressor exhaust temperature T1 Yu delivery temperature preset value；
And/or,
The control unit compressor air-discharging degree of superheat and preset temperature magnitude relationship extremely；
Control the opening and closing of electromagnetic valve.
Electromagnetic valve controlling system controls electromagnetism by increasing discharge superheat with preset temperature magnitude relationship extremely
The opening and closing of valve；Make compressor oil has good lubrication, improves making of compressor of air conditioner
Use life and reliability.
In a particular embodiment, delivery temperature preset value includes first exhaust temperature preset value A1 and second exhaust
Temperature preset value A2, wherein, A1 >=A2；
In solenoid valve control module, preset with delivery temperature according to compressor exhaust temperature T1 for control unit
The concrete operations of the opening and closing that the magnitude relationship of value controls electromagnetic valve are:
As T1 ＞ A1, control unit opens solenoid valve；
As T1 ＜ A2, control unit closes electromagnetic valve.
In solenoid valve control module, as T1 ＞ A1, control unit opens solenoid valve；As T1 ＜ A2,
Control unit closes electromagnetic valve；By arranging different delivery temperature preset values, make the control of electromagnetic valve more
Accurately with reliable.
In a particular embodiment, the compressor air-discharging degree of superheat includes compressor exhaust temperature T1 and condensing pressure pair
Answer the first temperature approach △ T1 of saturation temperature Tc, and compressor exhaust temperature T1 condenses side pipe temperature with compressor
The second temperature approach △ T1 of T3；
Default temperature approach includes that first presets temperature approach and second and preset temperature approach；
In solenoid valve control module, for the magnitude relationship of the compressor air-discharging degree of superheat Yu default temperature approach, control
The opening and closing of electromagnetic valve processed specifically include:
The magnitude relationship of temperature approach is preset according to the first temperature approach △ T1 and first；
And/or
The magnitude relationship of temperature approach is preset according to the second temperature approach △ T2 and second；
Control the opening and closing of electromagnetic valve.
In solenoid valve control module, the size presetting temperature approach according to the first temperature approach △ T1 and first is closed
System；And/or, preset the magnitude relationship of temperature approach according to the second temperature approach △ T2 and second, control electromagnetic valve
Opening and closing；Electromagnetic valve is controlled by the magnitude relationship of two temperature approach from different default temperature approach
Opening and closing, improve the service life of compressor.
In a particular embodiment, first presets temperature approach includes B1 and B1, wherein, and B1 >=B2,
In solenoid valve control module, close for presetting the size of temperature approach according to the first temperature approach △ T1 and first
The concrete operations of the opening and closing that system controls electromagnetic valve are:
As △ T1 ＞ B1, control unit opens solenoid valve；
As △ T1 ＜ B1, control unit closes electromagnetic valve.
In solenoid valve control module, as △ T1 ＞ B1, control unit opens solenoid valve；As △ T1 ＜ B1
Time, control unit closes electromagnetic valve；Guarantee that compressor is in optimum Working.
In a particular embodiment, second presets temperature approach includes C1 and C2, wherein, and C1 >=C2,
Second presets temperature approach includes C1 and C2, wherein, and C1 >=C2,
In solenoid valve control module, close for presetting the size of temperature approach according to the second temperature approach △ T2 and second
The concrete operations of the opening and closing that system controls electromagnetic valve are:
As △ T2 ＞ C1, control unit opens solenoid valve；
As △ T2 ＜ C2, control unit closes electromagnetic valve.
In solenoid valve control module, as △ T2 ＞ C1, control unit opens solenoid valve；As △ T2 ＜ C2
Time, control unit closes electromagnetic valve；Guarantee that compressor is in optimum Working.
Embodiments of the invention also provide for a kind of air-conditioning, including for controlling liquid refrigerant to compressor
The electromagnetic valve of low-pressure side, and for controlling the control unit that electromagnetic valve opens and closes, control unit includes
The air-conditioning Liquid injection cooling electromagnetic valve controlling system stated.
Electromagnetic valve controlling system in air-conditioning is by increasing discharge superheat and preset temperature magnitude relationship extremely
Control the opening and closing of electromagnetic valve；Make compressor oil has good lubrication, improves air-conditioning pressure
The service life of contracting machine and reliability..
In describing the invention, it is to be understood that term " " center ", " length ", " width ",
On " ", D score, " vertically ", " level ", " top ", " end ", the side of the instruction such as " interior "
Position or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of description the present invention with
Simplify and describe rather than indicate or imply that the device of indication or element must have specific orientation, with specific
Azimuth configuration and operation, be therefore not considered as limiting the invention.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " even
Connect ", the term such as " fixing " should be interpreted broadly, connect for example, it may be fixing, it is also possible to be removable
Unload connection, or integral；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals or the interaction relationship of two elements.For those of ordinary skill in the art
For, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on "
Or D score can include that the first and second features directly contact, it is also possible to include the first and second features not
It is directly contact but by the other characterisation contact between them.And, fisrt feature is in second feature
On " ", " top " and " above " include fisrt feature directly over second feature and oblique upper, or
It is merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ",
" lower section " and " below " includes that fisrt feature immediately below second feature and obliquely downward, or is merely representative of
One characteristic level height is less than second feature.
Above air-conditioning Liquid injection cooling electromagnetic valve control method, system and the air-conditioning of the present invention is carried out in detail
Introducing, principle and the embodiment of the present invention are set forth by specific case used herein.Above reality
The explanation executing example is only intended to help to understand the core concept of the present invention；General skill simultaneously for this area
Art personnel, according to the thought of the present invention, the most all will change,
In sum, this specification content should not be construed as limitation of the present invention.
Claims (11)
1. an air-conditioning Liquid injection cooling electromagnetic valve control method, described air-conditioning includes control unit, Yi Jiyong
In controlling the compressor of air conditioner liquid refrigerant electromagnetic valve to compressor low-pressure side, described control unit is used
In the opening and closing controlling electromagnetic valve, it is characterised in that
Described control unit is according to the magnitude relationship of compressor exhaust temperature T1 Yu delivery temperature preset value；
And/or,
The described control unit compressor air-discharging degree of superheat and preset temperature magnitude relationship extremely；
Control the opening and closing of described electromagnetic valve.
Air-conditioning Liquid injection cooling electromagnetic valve control method the most according to claim 1, it is characterised in that institute
State delivery temperature preset value and include first exhaust temperature preset value A1 and second exhaust temperature preset value A2, wherein,
A1≥A2；
Described control unit is according to the magnitude relationship control of described compressor exhaust temperature T1 Yu delivery temperature preset value
The concrete operations of the opening and closing making described electromagnetic valve are:
As T1 ＞ A1, described control unit opens described electromagnetic valve；
As T1 ＜ A2, described control unit closes described electromagnetic valve.
Air-conditioning Liquid injection cooling electromagnetic valve control method the most according to claim 1, it is characterised in that
The described compressor air-discharging degree of superheat includes the of compressor exhaust temperature T1 saturation temperature Tc corresponding with condensing pressure
One temperature approach △ T1, and the second temperature approach △ of compressor exhaust temperature T1 and compressor condensation side pipe temperature T3
T1；
Described default temperature approach includes that first presets temperature approach and second and preset temperature approach；
The described compressor air-discharging degree of superheat and the magnitude relationship of default temperature approach, control the unlatching of described electromagnetic valve
Specifically include with closedown:
The magnitude relationship of temperature approach is preset according to the first temperature approach △ T1 and first；
And/or
The magnitude relationship of temperature approach is preset according to the second temperature approach △ T2 and second；
Control the opening and closing of described electromagnetic valve.
Air-conditioning Liquid injection cooling electromagnetic valve control method the most according to claim 3, it is characterised in that
Described first presets temperature approach includes B1 and B1, wherein, and B1 >=B2,
The unlatching of the magnitude relationship described electromagnetic valve of control of temperature approach is preset according to the first temperature approach △ T1 and first
With the concrete operations closed it is:
As △ T1 ＞ B1, described control unit opens described electromagnetic valve；
As △ T1 ＜ B1, described control unit closes described electromagnetic valve.
Air-conditioning Liquid injection cooling electromagnetic valve control method the most according to claim 3, it is characterised in that
Described second presets temperature approach includes C1 and C2, wherein, and C1 >=C2,
The described magnitude relationship described electromagnetic valve of control presetting temperature approach according to the second temperature approach △ T2 and second
The concrete operations opened and closed are:
As △ T2 ＞ C1, described control unit opens described electromagnetic valve；
As △ T2 ＜ C2, described control unit closes described electromagnetic valve.
6. an air-conditioning Liquid injection cooling electromagnetic valve controlling system, described air-conditioning includes control unit, Yi Jiyong
In controlling the compressor of air conditioner liquid refrigerant electromagnetic valve to compressor low-pressure side, described control unit is used
In the opening and closing controlling electromagnetic valve, it is characterised in that described control unit includes solenoid valve control module,
Described solenoid valve control module, is used for
Described control unit is according to the magnitude relationship of compressor exhaust temperature T1 Yu delivery temperature preset value；
And/or,
The described control unit compressor air-discharging degree of superheat and preset temperature magnitude relationship extremely；
Control the opening and closing of described electromagnetic valve.
Air-conditioning Liquid injection cooling electromagnetic valve controlling system the most according to claim 6, it is characterised in that
Described delivery temperature preset value includes first exhaust temperature preset value A1 and second exhaust temperature preset value A2, its
In, A1 >=A2；
In described solenoid valve control module, for described control unit according to described compressor exhaust temperature T1 with
The concrete operations of the opening and closing that the magnitude relationship of delivery temperature preset value controls described electromagnetic valve are:
As T1 ＞ A1, described control unit opens described electromagnetic valve；
As T1 ＜ A2, described control unit closes described electromagnetic valve.
Air-conditioning Liquid injection cooling electromagnetic valve controlling system the most according to claim 6, it is characterised in that
The described compressor air-discharging degree of superheat includes the of compressor exhaust temperature T1 saturation temperature Tc corresponding with condensing pressure
One temperature approach △ T1, and the second temperature approach △ of compressor exhaust temperature T1 and compressor condensation side pipe temperature T3
T1；
Described default temperature approach includes that first presets temperature approach and second and preset temperature approach；
In described solenoid valve control module, for the size of the described compressor air-discharging degree of superheat Yu default temperature approach
Relation, the opening and closing controlling described electromagnetic valve specifically include:
The magnitude relationship of temperature approach is preset according to the first temperature approach △ T1 and first；
And/or
The magnitude relationship of temperature approach is preset according to the second temperature approach △ T2 and second；
Control the opening and closing of described electromagnetic valve.
Air-conditioning Liquid injection cooling electromagnetic valve controlling system the most according to claim 8, it is characterised in that
Described first presets temperature approach includes B1 and B1, wherein, and B1 >=B2,
In described solenoid valve control module, for presetting the big of temperature approach according to the first temperature approach △ T1 and first
The concrete operations of the opening and closing that little relation controls described electromagnetic valve are:
As △ T1 ＞ B1, described control unit opens described electromagnetic valve；
As △ T1 ＜ B1, described control unit closes described electromagnetic valve.
Air-conditioning Liquid injection cooling electromagnetic valve controlling system the most according to claim 8, it is characterised in that
Described second presets temperature approach includes C1 and C2, wherein, and C1 >=C2,
In described solenoid valve control module, preset temperature approach for described according to the second temperature approach △ T2 and second
Magnitude relationship control the concrete operations of opening and closing of described electromagnetic valve and be:
As △ T2 ＞ C1, described control unit opens described electromagnetic valve；
As △ T2 ＜ C2, described control unit closes described electromagnetic valve.
11. 1 kinds of air-conditionings, including for controlling the liquid refrigerant electromagnetic valve to compressor low-pressure side,
With the control unit for controlling the opening and closing of described electromagnetic valve, it is characterised in that described control unit bag
Include the air-conditioning Liquid injection cooling electromagnetic valve controlling system described in any one of claim 6 to 10.
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