CN105928277B - A kind of air-conditioning Liquid injection cooling electromagnetic valve control method, system and air-conditioning - Google Patents
A kind of air-conditioning Liquid injection cooling electromagnetic valve control method, system and air-conditioning Download PDFInfo
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- CN105928277B CN105928277B CN201610297649.3A CN201610297649A CN105928277B CN 105928277 B CN105928277 B CN 105928277B CN 201610297649 A CN201610297649 A CN 201610297649A CN 105928277 B CN105928277 B CN 105928277B
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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
-
- 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 present invention provides a kind of air-conditioning Liquid injection cooling electromagnetic valve control method, the air-conditioning includes control unit, and the solenoid valve for controlling compressor of air conditioner liquid refrigerant to compressor low-pressure side, described control unit is used to control the opening and closing of solenoid valve, and described control unit is according to the size relation of compressor exhaust temperature T1 and delivery temperature preset value；And/or the size relation of the described control unit compressor air-discharging degree of superheat and fiducial temperature value；Control the opening and closing of the solenoid valve.Size relation by increasing discharge superheat and fiducial temperature value controls the opening and closing of the solenoid valve；Make compressor oil has good lubricating action, improves the service life and reliability of compressor.
Description
Technical field
The present invention relates to air conditioner controlling technology field, especially a kind of air-conditioning Liquid injection cooling electromagnetic valve control method is
System and air-conditioning.
Background technique
Air-conditioning technical can increase the control of Liquid injection cooling for the reliability service of high-temperature refrigeration in air-conditioning system at present.
Liquid injection cooling is exactly a kind of method by liquid refrigerant to system low-voltage side (air return end), and centre uses electricity
Magnet valve control opens and closes.
The effect of Liquid injection cooling is exactly effective limitation delivery temperature, prevents compressor winding from overheating, and lubricating oil deteriorates, insulation
Material aging.Current air-conditioning products are mainly the unlatching that solenoid valve is controlled using delivery temperature, so that solenoid valve control
Reliability is poor, incomplete.
Summary of the invention
The present invention provides a kind of air-conditioning Liquid injection cooling electromagnetic valve control method, system and air-conditioning, to solve above-mentioned electromagnetism
Poor, the incomplete technical problem of the reliability of valve control.
It is described in order to solve the above technical problem, the present invention provides a kind of air-conditioning Liquid injection cooling electromagnetic valve control method
Air-conditioning includes control unit, and the solenoid valve for controlling compressor of air conditioner liquid refrigerant to compressor low-pressure side,
Described control unit is used to control the opening and closing of solenoid valve,
Described control unit is according to the size relation of compressor exhaust temperature T1 and delivery temperature preset value；
And/or
Described control unit is according to the size relation of the compressor air-discharging degree of superheat and fiducial temperature value；
Control the opening and closing of the solenoid valve.
The beneficial effects of the present invention are: controlling the electricity by the size relation for increasing discharge superheat and fiducial temperature value
The opening and closing of magnet valve；Make compressor oil has good lubricating action, improves the service life of compressor and reliable
Property.
Further, the delivery temperature preset value includes first exhaust temperature preset value A1 and second exhaust temperature preset value
A2, wherein A1 > A2；
Described control unit controls institute according to the size relation of the compressor exhaust temperature T1 and delivery temperature preset value
State the concrete operations of the opening and closing of solenoid valve are as follows:
As T1 > A1, described control unit opens the solenoid valve；
As T1 < A2, described control unit closes the solenoid valve.
Beneficial effect using above-mentioned further scheme is: as T1 > A1, control unit opens the solenoid valve；Work as T1
When < A2, control unit closes the solenoid valve；By the way that different delivery temperature preset values is arranged, make the control of solenoid valve more
It is accurate and reliable.
Further, the compressor air-discharging degree of superheat includes compressor exhaust temperature T1 saturation temperature corresponding with condensing pressure
The the first temperature difference △ T1 and compressor exhaust temperature T1 of Tc and the second temperature difference △ T2 of compressor condensation side tube temperature degree T3；
The fiducial temperature value includes the first fiducial temperature value and the second fiducial temperature value；
The size relation of the compressor air-discharging degree of superheat and fiducial temperature value, controls the opening and closing of the solenoid valve
It specifically includes:
According to the size relation of the first temperature difference △ T1 and the first fiducial temperature value；
And/or
According to the size relation of the second temperature difference △ T2 and the second fiducial temperature value；
Control the opening and closing of the solenoid valve.
Beneficial effect using above-mentioned further scheme is: according to the big of the first temperature difference △ T1 and the first fiducial temperature value
Small relationship；And/or the size relation according to the second temperature difference △ T2 and the second fiducial temperature value, control solenoid valve unlatching and
It closes；The opening and closing of solenoid valve are controlled from the size relation of different fiducial temperature values by two temperature difference, are improved
The service life of compressor.
Further, the first fiducial temperature value includes B1 and B2, wherein B1 > B2,
Unlatching and the pass of the solenoid valve are controlled according to the size relation of the first temperature difference △ T1 and the first fiducial temperature value
The concrete operations closed are as follows:
As △ T1 > B1, described control unit opens the solenoid valve；
As △ T1 < B2, described control unit closes the solenoid valve.
Beneficial effect using above-mentioned further scheme is: as △ T1 > B1, described control unit opens the electromagnetism
Valve；As △ T1 < B2, described control unit closes the solenoid valve；Ensure that compressor is in optimum Working.
Further, the second fiducial temperature value includes C1 and C2, wherein C1 > C2,
The size relation according to the second temperature difference △ T2 and the second fiducial temperature value controls the unlatching of the solenoid valve
With the concrete operations of closing are as follows:
As △ T2 > C1, described control unit opens the solenoid valve；
As △ T2 < C2, described control unit closes the solenoid valve.
Beneficial effect using above-mentioned further scheme is: as △ T2 > C1, described control unit opens the electromagnetism
Valve；As △ T2 < C2, described control unit closes the solenoid valve；Ensure that compressor is in optimum Working.
The present invention also provides a kind of air-conditioning Liquid injection cooling electromagnetic valve controlling systems, including air-conditioning includes control unit, with
And the solenoid valve for controlling compressor of air conditioner liquid refrigerant to compressor low-pressure side, described control unit is for controlling
The opening and closing of solenoid valve, described control unit include solenoid valve control module,
The solenoid valve control module, is used for
Described control unit is according to the size relation of compressor exhaust temperature T1 and delivery temperature preset value；
And/or
Described control unit is according to the size relation of the compressor air-discharging degree of superheat and fiducial temperature value；
Control the opening and closing of the solenoid valve.
The beneficial effect of electromagnetic valve controlling system of the present invention is: electromagnetic valve controlling system is by increase discharge superheat and in advance
If the size relation of temperature difference controls the opening and closing of the solenoid valve；Make compressor oil has good lubricating action,
Improve the service life and reliability of compressor of air conditioner.
Further, the delivery temperature preset value includes first exhaust temperature preset value A1 and second exhaust temperature preset value
A2, wherein A1 > A2；
In the solenoid valve control module, for described control unit according to the compressor exhaust temperature T1 and exhaust temperature
The size relation of degree preset value controls the concrete operations of the opening and closing of the solenoid valve are as follows:
As T1 > A1, described control unit opens the solenoid valve；
As T1 < A2, described control unit closes the solenoid valve.
Beneficial effect using above-mentioned further scheme is: in solenoid valve control module, as T1 > A1, and control unit
Open the solenoid valve；As T1 < A2, control unit closes the solenoid valve；It is default by the way that different delivery temperatures is arranged
Value, keeps the control of solenoid valve more accurate and reliable.
Further, the compressor air-discharging degree of superheat includes compressor exhaust temperature T1 saturation temperature corresponding with condensing pressure
The the first temperature difference △ T1 and compressor exhaust temperature T1 of Tc and the second temperature difference △ T2 of compressor condensation side tube temperature degree T3；
The fiducial temperature value includes the first fiducial temperature value and the second fiducial temperature value；
In the solenoid valve control module, for the size relation of the compressor air-discharging degree of superheat and fiducial temperature value,
The opening and closing for controlling the solenoid valve specifically include:
According to the size relation of the first temperature difference △ T1 and the first fiducial temperature value；
And/or
According to the size relation of the second temperature difference △ T2 and the second fiducial temperature value；
Control the opening and closing of the solenoid valve.
Beneficial effect using above-mentioned further scheme is: in solenoid valve control module, according to the first temperature difference △ T1
With the size relation of the first fiducial temperature value；And/or it is closed according to the size of the second temperature difference △ T2 and the second fiducial temperature value
System, controls the opening and closing of solenoid valve；Electricity is controlled from the size relation of different fiducial temperature values by two temperature difference
The opening and closing of magnet valve improve the service life of compressor.
Further, the first fiducial temperature value includes B1 and B2, wherein B1 > B2,
In the solenoid valve control module, for the size relation according to the first temperature difference △ T1 and the first fiducial temperature value
Control the concrete operations of the opening and closing of the solenoid valve are as follows:
As △ T1 > B1, described control unit opens the solenoid valve；
As △ T1 < B2, described control unit closes the solenoid valve.
Beneficial effect using above-mentioned further scheme is: in solenoid valve control module, as △ T1 > B1, and the control
Unit processed opens the solenoid valve；As △ T1 < B2, described control unit closes the solenoid valve；Ensure that compressor is in most
Good working condition.
Further, the second fiducial temperature value includes C1 and C2, wherein C1 > C2,
The second fiducial temperature value includes C1 and C2, wherein C1 > C2,
In the solenoid valve control module, for the size according to the second temperature difference △ T2 and the second fiducial temperature value
Relationship controls the concrete operations of the opening and closing of the solenoid valve are as follows:
As △ T2 > C1, described control unit opens the solenoid valve；
As △ T2 < C2, described control unit closes the solenoid valve.
Beneficial effect using above-mentioned further scheme is: in solenoid valve control module, as △ T2 > C1, and the control
Unit processed opens the solenoid valve；As △ T2 < C2, described control unit closes the solenoid valve；Ensure that compressor is in most
Good working condition.
The present invention also provides a kind of air-conditionings, including the electromagnetism for controlling liquid refrigerant to compressor low-pressure side
Valve, and the control device opened and closed for controlling the solenoid valve, the control device includes that above-mentioned air-conditioning hydrojet is cold
But electromagnetic valve controlling system is used.
The beneficial effect of air-conditioning of the present invention is: the electromagnetic valve controlling system in air-conditioning is by increasing discharge superheat and presetting
The size relation of temperature difference controls the opening and closing of the solenoid valve；Make compressor oil has good lubricating action, mentions
The high service life and reliability of compressor of air conditioner.
Detailed description of the invention
Fig. 1 is that air-conditioning solenoid valve of the present invention opens control flow chart,
Fig. 2 is that air-conditioning solenoid valve of the present invention closes control flow chart.
Specific embodiment
The present invention is further illustrated with embodiment with reference to the accompanying drawing.
Solenoid valve of the present invention opens control flow chart referring to Fig. 1, and air-conditioning includes control unit, and for controlling air-conditioning pressure
To the solenoid valve of compressor low-pressure side, control unit is used to control the opening and closing of solenoid valve contracting machine liquid refrigerant,
Control unit is according to the size relation of compressor exhaust temperature T1 and delivery temperature preset value；
And/or
Control unit is according to the size relation of the compressor air-discharging degree of superheat and fiducial temperature value；
Control the opening and closing of solenoid valve.
Size relation by increasing discharge superheat and fiducial temperature value controls the opening and closing of solenoid valve；Make to compress
Machine oil has good lubricating action, improves the service life and reliability of compressor.
In a particular embodiment, delivery temperature preset value includes that first exhaust temperature preset value A1 and second exhaust temperature are pre-
If value A2, wherein A1 > A2；
As T1 > A1, control unit opens solenoid valve.
Wherein, the compressor air-discharging degree of superheat includes the of compressor exhaust temperature T1 saturation temperature Tc corresponding with condensing pressure
The second temperature difference △ T2 of one temperature difference △ T1 and compressor exhaust temperature T1 and compressor condensation side tube temperature degree T3；
Fiducial temperature value includes the first fiducial temperature value and the second fiducial temperature value；Wherein, the first fiducial temperature value includes
B1 and B2, wherein B1 > B2；Second fiducial temperature value includes C1 and C2, wherein C1 > C2；
As △ T1 > B1, control unit opens solenoid valve；As △ T2 > C1, control unit opens solenoid valve.
According to the size relation of the first temperature difference △ T1 and the first fiducial temperature value；And/or according to the second temperature difference △ T2
With the size relation of the second fiducial temperature value, the opening and closing of solenoid valve are controlled；It is preset by two temperature difference from different
The size relation of temperature difference controls the unlatching of solenoid valve, improves the service life of compressor.
Air-conditioning solenoid valve of the present invention closes control flow chart referring to fig. 2, compared with air-conditioning solenoid valve closes control flow, when
When T1 < A2, control unit closes solenoid valve；
And/or
As △ T1 < B2, control unit closes solenoid valve；
And/or
As △ T2 < C2, control unit closes solenoid valve.
According to the size relation of the first temperature difference △ T1 and the first fiducial temperature value；And/or according to the second temperature difference △ T2
With the size relation of the second fiducial temperature value, the closing and closing of solenoid valve are controlled；It is preset by two temperature difference from different
The size relation of temperature difference controls the closing of solenoid valve, improves the service life of compressor.
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 solenoid valve control is more accurate.
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 A1=100 DEG C >, so, control unit opens solenoid valve.
In a second embodiment, T1=110 DEG C, Tc=60 DEG C, due to T1=110 DEG C A1=100 DEG C >, so, control unit
Opens solenoid valve.
Meanwhile the compressor air-discharging degree of superheat includes the of compressor exhaust temperature T1 saturation temperature Tc corresponding with condensing pressure
One -60 DEG C=50 DEG C of T1=110 DEG C temperature difference △, T1=50 DEG C △ B1=45 DEG C >, so, control unit opens solenoid valve.
The embodiment of the present invention also provides a kind of air-conditioning Liquid injection cooling electromagnetic valve controlling system, and air-conditioning includes control unit,
And the solenoid valve for controlling compressor of air conditioner liquid refrigerant to compressor low-pressure side, control unit is for controlling electricity
The opening and closing of magnet valve, control unit include solenoid valve control module,
Solenoid valve control module is used for
Control unit is according to the size relation of compressor exhaust temperature T1 and delivery temperature preset value；
And/or
Control unit is according to the size relation of the compressor air-discharging degree of superheat and fiducial temperature value；
Control the opening and closing of solenoid valve.
Electromagnetic valve controlling system controls opening for solenoid valve by increasing discharge superheat and the size relation of fiducial temperature value
It opens and closes；Make compressor oil has good lubricating action, improves the service life and reliability of compressor of air conditioner.
In a particular embodiment, delivery temperature preset value includes that first exhaust temperature preset value A1 and second exhaust temperature are pre-
If value A2, wherein A1 > A2；
In solenoid valve control module, for control unit according to the big of compressor exhaust temperature T1 and delivery temperature preset value
The concrete operations of the opening and closing of small relationship control solenoid valve are as follows:
As T1 > A1, control unit opens solenoid valve；
As T1 < A2, control unit closes solenoid valve.
In solenoid valve control module, as T1 > A1, control unit opens solenoid valve；As T1 < A2, control unit
Close solenoid valve；By the way that different delivery temperature preset values is arranged, keep the control of solenoid valve more accurate and reliable.
In a particular embodiment, the compressor air-discharging degree of superheat includes compressor exhaust temperature T1 saturation corresponding with condensing pressure
The the first temperature difference △ T1 and compressor exhaust temperature T1 of temperature Tc and the second temperature difference △ of compressor condensation side tube temperature degree T3
T2；
Fiducial temperature value includes the first fiducial temperature value and the second fiducial temperature value；
In solenoid valve control module, for the size relation of the compressor air-discharging degree of superheat and fiducial temperature value, electromagnetism is controlled
The opening and closing of valve specifically include:
According to the size relation of the first temperature difference △ T1 and the first fiducial temperature value；
And/or
According to the size relation of the second temperature difference △ T2 and the second fiducial temperature value；
Control the opening and closing of solenoid valve.
In solenoid valve control module, according to the size relation of the first temperature difference △ T1 and the first fiducial temperature value；With/
Or, controlling the opening and closing of solenoid valve according to the size relation of the second temperature difference △ T2 and the second fiducial temperature value；Pass through two
A temperature difference controls the opening and closing of solenoid valve from the size relation of different fiducial temperature values, improves making for compressor
Use the service life.
In a particular embodiment, the first fiducial temperature value includes B1 and B2, wherein B1 > B2,
In solenoid valve control module, for being controlled according to the size relation of the first temperature difference △ T1 and the first fiducial temperature value
The concrete operations of the opening and closing of solenoid valve are as follows:
As △ T1 > B1, control unit opens solenoid valve；
As △ T1 < B2, control unit closes solenoid valve.
In solenoid valve control module, as △ T1 > B1, control unit opens solenoid valve；As △ T1 < B2, control
Unit closes solenoid valve；Ensure that compressor is in optimum Working.
In a particular embodiment, the second fiducial temperature value includes C1 and C2, wherein C1 > C2,
Second fiducial temperature value includes C1 and C2, wherein C1 > C2,
In solenoid valve control module, for being controlled according to the size relation of the second temperature difference △ T2 and the second fiducial temperature value
The concrete operations of the opening and closing of solenoid valve are as follows:
As △ T2 > C1, control unit opens solenoid valve；
As △ T2 < C2, control unit closes solenoid valve.
In solenoid valve control module, as △ T2 > C1, control unit opens solenoid valve；As △ T2 < C2, control
Unit closes solenoid valve；Ensure that compressor is in optimum Working.
The embodiment of the present invention also provides a kind of air-conditioning, including for controlling liquid refrigerant to compressor low-pressure side
Solenoid valve, and for control solenoid valve opening and closing control device, control device includes above-mentioned air-conditioning Liquid injection cooling
Use electromagnetic valve controlling system.
Electromagnetic valve controlling system in air-conditioning controls electricity by increasing the size relation of discharge superheat and fiducial temperature value
The opening and closing of magnet valve；Make compressor oil have good lubricating action, improve compressor of air conditioner service life and
Reliability.
In the description of the present invention, it is to be understood that, term " center ", " length ", " width ", "upper", "lower", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner" is that orientation based on the figure or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be direct phase
Even, can also indirectly connected through an intermediary, the interaction that can be connection or two elements inside two elements is closed
System.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood as the case may be
Meaning.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Air-conditioning Liquid injection cooling electromagnetic valve control method, system and air-conditioning of the invention are described in detail above,
It is used herein that a specific example illustrates the principle and implementation of the invention.The explanation of above embodiments is only used
Core of the invention thought is understood in help；At the same time, for those skilled in the art, according to the thought of the present invention,
There will be changes in specific embodiment and application range, in conclusion the content of the present specification should not be construed as to this hair
Bright limitation.
Claims (9)
1. a kind of air-conditioning Liquid injection cooling electromagnetic valve control method, the air-conditioning include control unit, and for controlling air-conditioning
Compressor liquid refrigerant to compressor low-pressure side solenoid valve, described control unit be used for control solenoid valve unlatching and
It closes, which is characterized in that
Described control unit controls the solenoid valve according to the size relation of compressor exhaust temperature T1 and delivery temperature preset value
Opening and closing；
The delivery temperature preset value includes first exhaust temperature preset value A1 and second exhaust temperature preset value A2, wherein A1
> A2；
Described control unit controls the electricity according to the size relation of the compressor exhaust temperature T1 and delivery temperature preset value
The concrete operations of the opening and closing of magnet valve are as follows:
As T1 > A1, described control unit opens the solenoid valve；
As T1 < A2, described control unit closes the solenoid valve.
2. a kind of air-conditioning Liquid injection cooling electromagnetic valve control method, the air-conditioning include control unit, and for controlling air-conditioning
Compressor liquid refrigerant to compressor low-pressure side solenoid valve, described control unit be used for control solenoid valve unlatching and
It closes, which is characterized in that
Described control unit is according to the size relation and described control unit of compressor exhaust temperature T1 and delivery temperature preset value
According to the size relation of the compressor air-discharging degree of superheat and fiducial temperature value, the opening and closing of the solenoid valve are controlled；
The delivery temperature preset value includes first exhaust temperature preset value A1 and second exhaust temperature preset value A2, wherein A1
> A2；
Described control unit controls the electricity according to the size relation of the compressor exhaust temperature T1 and delivery temperature preset value
The concrete operations of the opening and closing of magnet valve are as follows:
As T1 > A1, described control unit opens the solenoid valve；
As T1 < A2, described control unit closes the solenoid valve；
The compressor air-discharging degree of superheat includes the first temperature of compressor exhaust temperature T1 saturation temperature Tc corresponding with condensing pressure
The second temperature difference △ T2 of difference △ T1 and compressor exhaust temperature T1 and compressor condensation side tube temperature degree T3；
The fiducial temperature value includes the first fiducial temperature value and the second fiducial temperature value；
The size relation of the compressor air-discharging degree of superheat and fiducial temperature value, the opening and closing for controlling the solenoid valve are specific
Include:
According to the size relation of the first temperature difference △ T1 and the first fiducial temperature value；
And/or
According to the size relation of the second temperature difference △ T2 and the second fiducial temperature value；
Control the opening and closing of the solenoid valve；
The first fiducial temperature value includes B1 and B2, wherein B1 > B2,
The opening and closing of the solenoid valve are controlled according to the size relation of the first temperature difference △ T1 and the first fiducial temperature value
Concrete operations are as follows:
As △ T1 > B1, described control unit opens the solenoid valve；
As △ T1 < B2, described control unit closes the solenoid valve；
The second fiducial temperature value includes C1 and C2, wherein C1 > C2,
The size relation according to the second temperature difference △ T2 and the second fiducial temperature value controls unlatching and the pass of the solenoid valve
The concrete operations closed are as follows:
As △ T2 > C1, described control unit opens the solenoid valve；
As △ T2 < C2, described control unit closes the solenoid valve.
3. a kind of air-conditioning Liquid injection cooling electromagnetic valve control method, the air-conditioning include control unit, and for controlling air-conditioning
Compressor liquid refrigerant to compressor low-pressure side solenoid valve, described control unit be used for control solenoid valve unlatching and
It closes, which is characterized in that
Described control unit controls opening for the solenoid valve according to the size relation of the compressor air-discharging degree of superheat and fiducial temperature value
It opens and closes；
The compressor air-discharging degree of superheat includes the first temperature of compressor exhaust temperature T1 saturation temperature Tc corresponding with condensing pressure
The second temperature difference △ T2 of difference △ T1 and compressor exhaust temperature T1 and compressor condensation side tube temperature degree T3；
The fiducial temperature value includes the first fiducial temperature value and the second fiducial temperature value；
The size relation of the compressor air-discharging degree of superheat and fiducial temperature value, the opening and closing for controlling the solenoid valve are specific
Include:
According to the size relation of the first temperature difference △ T1 and the first fiducial temperature value；
And/or
According to the size relation of the second temperature difference △ T2 and the second fiducial temperature value；
Control the opening and closing of the solenoid valve；
The first fiducial temperature value includes B1 and B2, wherein B1 > B2,
The opening and closing of the solenoid valve are controlled according to the size relation of the first temperature difference △ T1 and the first fiducial temperature value
Concrete operations are as follows:
As △ T1 > B1, described control unit opens the solenoid valve；
As △ T1 < B2, described control unit closes the solenoid valve；
The second fiducial temperature value includes C1 and C2, wherein C1 > C2,
The size relation according to the second temperature difference △ T2 and the second fiducial temperature value controls unlatching and the pass of the solenoid valve
The concrete operations closed are as follows:
As △ T2 > C1, described control unit opens the solenoid valve；
As △ T2 < C2, described control unit closes the solenoid valve.
4. a kind of air-conditioning Liquid injection cooling electromagnetic valve controlling system, including air-conditioning includes control unit, and for controlling air-conditioning
Compressor liquid refrigerant to compressor low-pressure side solenoid valve, described control unit be used for control solenoid valve unlatching and
It closes, which is characterized in that described control unit includes solenoid valve control module,
The solenoid valve control module, for the size relation according to compressor exhaust temperature T1 and delivery temperature preset value, control
Make the opening and closing of the solenoid valve；
The delivery temperature preset value includes first exhaust temperature preset value A1 and second exhaust temperature preset value A2, wherein A1
> A2；
In the solenoid valve control module, it is specifically used for, as T1 > A1, opens the solenoid valve；As T1 < A2, institute is closed
State solenoid valve.
5. a kind of air-conditioning Liquid injection cooling electromagnetic valve controlling system, including air-conditioning includes control unit, and for controlling air-conditioning
Compressor liquid refrigerant to compressor low-pressure side solenoid valve, described control unit be used for control solenoid valve unlatching and
It closes, which is characterized in that described control unit includes solenoid valve control module,
The solenoid valve control module, is used for,
According to compressor exhaust temperature T1 with the size relation of delivery temperature preset value and according to the compressor air-discharging degree of superheat and in advance
If the size relation of temperature difference controls the opening and closing of the solenoid valve；
The delivery temperature preset value includes first exhaust temperature preset value A1 and second exhaust temperature preset value A2, wherein A1
> A2；
In the solenoid valve control module, it is specifically used for, as T1 > A1, opens the solenoid valve；As T1 < A2, institute is closed
State solenoid valve；
The compressor air-discharging degree of superheat includes the first temperature of compressor exhaust temperature T1 saturation temperature Tc corresponding with condensing pressure
The second temperature difference △ T2 of difference △ T1 and compressor exhaust temperature T1 and compressor condensation side tube temperature degree T3；
The fiducial temperature value includes the first fiducial temperature value and the second fiducial temperature value；
In the solenoid valve control module, it is specifically used for,
According to the size relation of the first temperature difference △ T1 and the first fiducial temperature value；
And/or
According to the size relation of the second temperature difference △ T2 and the second fiducial temperature value；
Control the opening and closing of the solenoid valve；
The first fiducial temperature value includes B1 and B2, wherein B1 > B2,
In the solenoid valve control module, it is specifically used for,
As △ T1 > B1, the solenoid valve is opened；
As △ T1 < B2, the solenoid valve is closed；
The second fiducial temperature value includes C1 and C2, wherein C1 > C2,
In the solenoid valve control module, it is specifically used for,
As △ T2 > C1, the solenoid valve is opened；
As △ T2 < C2, the solenoid valve is closed.
6. a kind of air-conditioning Liquid injection cooling electromagnetic valve controlling system, including air-conditioning includes control unit, and for controlling air-conditioning
Compressor liquid refrigerant to compressor low-pressure side solenoid valve, described control unit be used for control solenoid valve unlatching and
It closes, which is characterized in that described control unit includes solenoid valve control module,
The solenoid valve control module, is used for, and according to the size relation of the compressor air-discharging degree of superheat and fiducial temperature value, controls institute
State the opening and closing of solenoid valve；
The compressor air-discharging degree of superheat includes the first temperature of compressor exhaust temperature T1 saturation temperature Tc corresponding with condensing pressure
The second temperature difference △ T2 of difference △ T1 and compressor exhaust temperature T1 and compressor condensation side tube temperature degree T3；
The fiducial temperature value includes the first fiducial temperature value and the second fiducial temperature value；
In the solenoid valve control module, it is specifically used for,
According to the size relation of the first temperature difference △ T1 and the first fiducial temperature value；
And/or
According to the size relation of the second temperature difference △ T2 and the second fiducial temperature value；
Control the opening and closing of the solenoid valve；
The first fiducial temperature value includes B1 and B2, wherein B1 > B2,
In the solenoid valve control module, it is specifically used for,
As △ T1 > B1, the solenoid valve is opened；
As △ T1 < B2, the solenoid valve is closed；
The second fiducial temperature value includes C1 and C2, wherein C1 > C2,
In the solenoid valve control module, it is specifically used for,
As △ T2 > C1, the solenoid valve is opened；
As △ T2 < C2, the solenoid valve is closed.
7. a kind of air-conditioning, including the solenoid valve for controlling liquid refrigerant to compressor low-pressure side, and for controlling
State the control device of solenoid valve opening and closing, which is characterized in that the control device includes air-conditioning spray as claimed in claim 4
Liquid cooling but uses electromagnetic valve controlling system.
8. a kind of air-conditioning, including the solenoid valve for controlling liquid refrigerant to compressor low-pressure side, and for controlling
State the control device of solenoid valve opening and closing, which is characterized in that the control device includes the spray of air-conditioning described in claim 5
Liquid cooling but uses electromagnetic valve controlling system.
9. a kind of air-conditioning, including the solenoid valve for controlling liquid refrigerant to compressor low-pressure side, and for controlling
State the control device of solenoid valve opening and closing, which is characterized in that the control device includes air-conditioning spray as claimed in claim 6
Liquid cooling but uses electromagnetic valve controlling system.
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| CN201610297649.3A CN105928277B (en) | 2016-05-06 | 2016-05-06 | A kind of air-conditioning Liquid injection cooling electromagnetic valve control method, system and air-conditioning |
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| CN201610297649.3A CN105928277B (en) | 2016-05-06 | 2016-05-06 | A kind of air-conditioning Liquid injection cooling electromagnetic valve control method, system and air-conditioning |
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| CN106895620B (en) * | 2017-01-16 | 2022-04-01 | 珠海格力电器股份有限公司 | Liquid spraying system control method and device and air conditioning unit |
| CN109899278B (en) | 2017-12-08 | 2021-09-03 | 丹佛斯（天津）有限公司 | Controller and control method for compressor, compressor assembly and refrigeration system |
| CN110608508A (en) * | 2019-09-26 | 2019-12-24 | 珠海格力电器股份有限公司 | Failure processing method and device for cooling device in heat pump system and controller |
| CN113108510A (en) * | 2021-05-06 | 2021-07-13 | 无锡冠亚恒温制冷技术有限公司 | Double-threshold return difference control method for refrigeration electromagnetic valve |
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