CN105928276A - Control method and system of electromagnetic valve for air conditioner hot gas bypass and air conditioner - Google Patents
Control method and system of electromagnetic valve for air conditioner hot gas bypass and air conditioner Download PDFInfo
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- CN105928276A CN105928276A CN201610297648.9A CN201610297648A CN105928276A CN 105928276 A CN105928276 A CN 105928276A CN 201610297648 A CN201610297648 A CN 201610297648A CN 105928276 A CN105928276 A CN 105928276A
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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
- 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)
Abstract
The invention discloses a control method of an electromagnetic valve for an air conditioner hot gas bypass. An air conditioner comprises an air conditioner control unit. The electromagnetic valve for controlling the hot gas bypass to be opened and closed is connected to the air conditioner control unit. When the condition for opening the bypass electromagnetic valve is met, the electromagnetic valve is opened. When the condition for closing the bypass electromagnetic valve is met, the electromagnetic valve is closed. The condition for opening the bypass electromagnetic valve is that the outdoor environment temperature T4 is smaller than Ai, and the compressor frequency INV is larger than H1 and any one and any combinations of the following conditions that the compressor exhaust temperature T5 is smaller than or equal to the first exhaust temperature preset value B1, the difference value of the compressor exhaust temperature T5 and the condensation side pipe temperature T3 is smaller than or equal to the first preset temperature difference value C1, the difference value of the compressor exhaust temperature T5 and the condensation pressure corresponding saturation temperature Tc is smaller than D1, and the compression ratio Pr of a compressor is larger than E1 are met. Except that the exhaust temperature T5 is adopted, the electromagnetic valve is further controlled to be opened through the exhaust superheat degree of the compressor and the compression ratio of the compressor, and the effectiveness and the reliability of the hot gas bypass electromagnetic valve are improved.
Description
Technical field
The present invention relates to air conditioner controlling technology field, particularly a kind of air-conditioning hot-gas bypass electromagnetic valve controlling party
Method, system and air-conditioning.
Background technology
Air-conditioning technical is for the reliability service of low-temperature heating at present, can increase hot-gas bypass in air conditioning system
Control.
Hot-gas bypass is a kind of is bypassed to system low-voltage side (return-air by high-tension side high temperature liquid refrigerant
End) method, middle use electromagnetic valve to control to open and close.
The effect of hot-gas bypass is exactly effectively to limit evaporating pressure, allows compressor meet the return-air that design requires
Run under pressure, improve system reliability；Current air-conditioning products mainly uses delivery temperature to control electricity
The unlatching of magnet valve, control system is not the most reliable.
Summary of the invention
The present invention provides a kind of air-conditioning hot-gas bypass electromagnetic valve control method, system and air-conditioning, to solve sky
Regulation and control system steam by-pass governing is not the most reliable technical problem.
In order to solve above-mentioned technical problem, the present invention provides a kind of air-conditioning hot-gas bypass electromagnetic valve controlling party
Method, air-conditioning includes conditioning control unit, and described conditioning control unit connects to be had for controlling hot-gas bypass unlatching
With the bypass solenoid valve closed, when meeting bypass solenoid valve unlocking condition, described conditioning control unit is opened
Described bypass solenoid valve；When meeting bypass solenoid valve and closing condition, described conditioning control unit is closed described
Bypass solenoid valve；
Wherein, described bypass solenoid valve unlocking condition is:
Outdoor environment temperature T4 is less than or equal to first environment temperature preset value A1, and compressor frequency INV
H1 more than or equal to first frequency preset value；
And meet with any one in following condition or the combination of several:
Compressor exhaust temperature T5 is less than or equal to first exhaust temperature preset value B1；
The difference of described compressor exhaust temperature T5 and condensation side pipe temperature T3 less than or etc. first preset temperature approach
C1；
The difference of described compressor exhaust temperature T5 saturation temperature Tc corresponding with condensing pressure less than or etc. second
Preset temperature approach D1；
The compression ratio Pr of compressor more than or etc. the first preset value E1, wherein, Pr=(Pc+0.1)/(Pe+0.1),
Pc is the condensing pressure of compressor, and Pe is the evaporating pressure of compressor.
The invention has the beneficial effects as follows: close bar by setting bypass solenoid valve unlocking condition and bypass solenoid valve
Part, performs the unlatching of electromagnetic valve and the closedown of electromagnetic valve respectively, in addition to using delivery temperature T5, the most logical
The discharge superheat of overcompression machine, i.e. compressor exhaust temperature T5 and the difference condensing side pipe temperature T3, and pressure
The difference of contracting machine delivery temperature T5 saturation temperature Tc corresponding with condensing pressure controls the unlatching of electromagnetic valve；With
And the unlatching by the compression ratio control electromagnetic valve of compressor, it is possible to precisely react the pressure feelings of compressor
Condition, improves the validity and reliability that hot gas bypass solenoid valve controls.
Further, described bypass solenoid valve closes the knot that condition is any one in following condition or several
Close:
Outdoor environment temperature T4 is more than or equal to second environment temperature preset value A2；
Compressor frequency INV is less than or equal to the H2 of second frequency preset value；
Compressor exhaust temperature T5 is more than or equal to second exhaust temperature preset value B2；
Described compressor exhaust temperature T5 presets the temperature difference with the difference of condensation side pipe temperature T3 more than or equal to the 3rd
Value C2；
The difference of described compressor exhaust temperature T5 saturation temperature Tc corresponding with condensing pressure is more than or equal to the
Four preset temperature approach D2；
The compression ratio Pr of compressor is less than or equal to the second preset value E2, wherein, and Pr=(Pc+0.1)/
(Pe+0.1), Pc is the condensing pressure of compressor, and Pe is the evaporating pressure of compressor.
Above-mentioned further scheme is used to provide the benefit that: in closed electromagnetic valve condition, except using aerofluxus
Outside temperature T5, also by the discharge superheat of compressor, i.e. compressor exhaust temperature T5 and condensation side pipe temperature
The difference of T3, the difference of saturation temperature Tc corresponding with condensing pressure with compressor exhaust temperature T5 controls
The closedown of electromagnetic valve；And the closedown by the compression ratio control electromagnetic valve of compressor, improve by steam
The validity and reliability that three-way electromagnetic valve controls.
Further, 0 DEG C of ＜ A1 ＜ 5 DEG C, 40Hz ＜ H1 ＜ 50Hz, 30 DEG C of ＜ B1 ＜ 50 DEG C, 0 DEG C of ＜ C1 ＜
10 DEG C, 0 DEG C of ＜ D1 ＜ 10 DEG C, E1 ＞ 10.
Above-mentioned further scheme is used to provide the benefit that: to limit scope by arranging above-mentioned parameter, improve
The accuracy controlled opened by electromagnetic valve.
Further, A2 >=7 DEG C, H2 >=60Hz, B2 >=60 DEG C, C2 >=15 DEG C, D2 >=15 DEG C, E2 ＜ 8.
Above-mentioned further scheme is used to provide the benefit that: to limit scope by arranging above-mentioned parameter, improve
The accuracy that closed electromagnetic valve controls.
The present invention also provides for a kind of air-conditioning hot-gas bypass electromagnetic valve controlling system, including for controlling by steam
Open up the bypass solenoid valve opening and disconnecting and for controlling the conditioning control unit of described bypass solenoid valve, described
Conditioning control unit includes that electromagnetic valve opens control module and closed electromagnetic valve control module,
Control module opened by described electromagnetic valve, for when meeting bypass solenoid valve unlocking condition, controls to open
Described bypass solenoid valve；
Described closed electromagnetic valve control module, for when meeting bypass solenoid valve and closing condition, controls to close
Described bypass solenoid valve；
Described electromagnetic valve is opened in control module, and described bypass solenoid valve unlocking condition is:
Outdoor environment temperature T4 is less than or equal to first environment temperature preset value A1, and compressor frequency INV
H1 more than or equal to first frequency preset value；
And meet with any one in following condition or the combination of several:
Compressor exhaust temperature T5 is less than or equal to first exhaust temperature preset value B1；
The difference of described compressor exhaust temperature T5 and condensation side pipe temperature T3 less than or etc. first preset temperature approach
C1；
The difference of described compressor exhaust temperature T5 saturation temperature Tc corresponding with condensing pressure less than or etc. second
Preset temperature approach D1；
The compression ratio Pr of compressor more than or etc. the first preset value E1, wherein, Pr=(Pc+0.1)/(Pe+0.1),
Pc is the condensing pressure of compressor, and Pe is the evaporating pressure of compressor.
Control system of the present invention provides the benefit that: open control module and closed electromagnetic valve control by electromagnetic valve
Molding block, performs the unlatching of electromagnetic valve and the closedown of electromagnetic valve respectively, in addition to using delivery temperature T5,
Also by the difference of the discharge superheat of compressor, i.e. compressor exhaust temperature T5 with condensation side pipe temperature T3,
The difference of saturation temperature Tc corresponding with condensing pressure with compressor exhaust temperature T5 controls opening of electromagnetic valve
Open；And the unlatching by the compression ratio control electromagnetic valve of compressor, it is possible to precisely react the pressure of compressor
Power situation, improves the validity and reliability that hot gas bypass solenoid valve controls.
Further, in described closed electromagnetic valve control module, it is following bar that described bypass solenoid valve closes condition
Any one in part or the combination of several:
Outdoor environment temperature T4 is more than or equal to second environment temperature preset value A2；
Compressor frequency INV is less than or equal to the H2 of second frequency preset value；
Compressor exhaust temperature T5 is more than or equal to second exhaust temperature preset value B2；
Described compressor exhaust temperature T5 presets the temperature difference with the difference of condensation side pipe temperature T3 more than or equal to the 3rd
Value C2；
The difference of described compressor exhaust temperature T5 saturation temperature Tc corresponding with condensing pressure is more than or equal to the
Four preset temperature approach D2；
The compression ratio Pr of compressor is less than or equal to the second preset value E2, wherein, and Pr=(Pc+0.1)/
(Pe+0.1), Pc is the condensing pressure of compressor, and Pe is the evaporating pressure of compressor.
Above-mentioned further scheme is used to provide the benefit that: in closed electromagnetic valve control module, except the row of employing
Outside temperature T5, also by the discharge superheat of compressor, i.e. compressor exhaust temperature T5 and condensation side pipe
The difference of temperature T3, the difference of saturation temperature Tc corresponding with condensing pressure with compressor exhaust temperature T5 is controlled
The closedown of electromagnetic valve processed；And the closedown by the compression ratio control electromagnetic valve of compressor, improve steam
The validity and reliability that bypass solenoid valve controls.
Further, 0 DEG C of ＜ A1 ＜ 5 DEG C, 40Hz ＜ H1 ＜ 50Hz, 30 DEG C of ＜ B1 ＜ 50 DEG C, 0 DEG C of ＜ C1 ＜
10 DEG C, 0 DEG C of ＜ D1 ＜ 10 DEG C, E1 ＞ 10.
Above-mentioned further scheme is used to provide the benefit that: to limit scope by arranging above-mentioned parameter, improve
The accuracy controlled opened by electromagnetic valve.
Further, A2 >=7 DEG C, H2 >=60Hz, B2 >=60 DEG C, C2 >=15 DEG C, D2 >=15 DEG C, E2 ＜ 8.
Above-mentioned further scheme is used to provide the benefit that: to limit scope by arranging above-mentioned parameter, improve
The accuracy that closed electromagnetic valve controls.
The present invention also provides for a kind of air-conditioning, and including air conditioning control device, described air conditioning control device is provided with
The air-conditioning hot-gas bypass electromagnetic valve controlling system stated.
Air-conditioning of the present invention provides the benefit that: by the above-mentioned control system of air conditioning control device, by compression
The discharge superheat of machine, i.e. compressor exhaust temperature T5 and the difference condensing side pipe temperature T3, and compressor row
The difference of temperature T5 saturation temperature Tc corresponding with condensing pressure controls the unlatching of electromagnetic valve；And pass through
The unlatching of the compression ratio control electromagnetic valve of compressor, improve hot gas bypass solenoid valve control effectiveness and
Reliability, improves Consumer's Experience.
Accompanying drawing explanation
Fig. 1 is that the control flow chart controlled opened by air-conditioning hot-gas bypass electromagnetic valve of the present invention,
Fig. 2 is the control flow chart of air-conditioning hot-gas bypass electromagnetic valve closing control of the present invention,
Fig. 3 is the structured flowchart of air-conditioning hot-gas bypass electromagnetic valve controlling system of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
100, control module opened by electromagnetic valve, and 200, closed electromagnetic valve control module
Detailed description of the invention
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
Air-conditioning hot-gas bypass electromagnetic valve of the present invention is opened the control flow chart controlled and is seen Fig. 1, when satisfied side
During three-way electromagnetic valve unlocking condition, conditioning control unit opens bypass solenoid valve；
Wherein, bypass solenoid valve unlocking condition is:
Outdoor environment temperature T4 is less than or equal to first environment temperature preset value A1, and compressor frequency INV
H1 more than or equal to first frequency preset value；
And meet with any one in following condition or the combination of several:
Compressor exhaust temperature T5 is less than or equal to first exhaust temperature preset value B1；
The difference of compressor exhaust temperature T5 and condensation side pipe temperature T3 less than or etc. first preset temperature approach C1；
The difference of compressor exhaust temperature T5 saturation temperature Tc corresponding with condensing pressure less than or wait second default
Temperature approach D1；
The compression ratio Pr of compressor more than or etc. the first preset value E1, wherein, Pr=(Pc+0.1)/
(Pe+0.1), Pc is the condensing pressure of compressor, and Pe is the evaporating pressure of compressor.
In closed electromagnetic valve condition, in addition to using delivery temperature T5, also by the aerofluxus of compressor
Temperature, i.e. compressor exhaust temperature T5 and the difference condensing side pipe temperature T3, and compressor exhaust temperature T5
The difference of saturation temperature Tc corresponding with condensing pressure controls the closedown of electromagnetic valve；And by compressor
The closedown of compression ratio control electromagnetic valve, improves the validity and reliability that hot gas bypass solenoid valve controls.
In a particular embodiment, 0 DEG C of ＜ A1 ＜ 5 DEG C, 40Hz ＜ H1 ＜ 50Hz, 30 DEG C of ＜ B1 ＜ 50 DEG C, 0 DEG C
＜ C1 ＜ 10 DEG C, 0 DEG C of ＜ D1 ＜ 10 DEG C, E1 ＞ 10.
In the first embodiment, C1 is 8 DEG C, and conditioning control unit detects, compressor exhaust temperature T5
Being 110 DEG C, condensation side pipe temperature T3 is 105 DEG C, T5-T3=110 DEG C-105 DEG C=5 DEG C ＜ C1=8 DEG C, so
Open bypass solenoid valve.
The control flow chart of air-conditioning hot-gas bypass electromagnetic valve closing control of the present invention sees Fig. 2, when satisfied side
When three-way electromagnetic valve closes condition, conditioning control unit closes bypass solenoid valve；
Wherein, bypass solenoid valve closedown condition is the combination of any one in following condition or several:
Outdoor environment temperature T4 is more than or equal to second environment temperature preset value A2；
Compressor frequency INV is less than or equal to the H2 of second frequency preset value；
Compressor exhaust temperature T5 is more than or equal to second exhaust temperature preset value B2；
Compressor exhaust temperature T5 presets temperature approach C2 with the difference of condensation side pipe temperature T3 more than or equal to the 3rd；
The difference of compressor exhaust temperature T5 saturation temperature Tc corresponding with condensing pressure is pre-more than or equal to the 4th
If temperature approach D2；
The compression ratio Pr of compressor is less than or equal to the second preset value E2, wherein, and Pr=(Pc+0.1)/
(Pe+0.1), Pc is the condensing pressure of compressor, and Pe is the evaporating pressure of compressor.
In closed electromagnetic valve condition, in addition to using delivery temperature T5, also by the aerofluxus of compressor
Temperature, i.e. compressor exhaust temperature T5 and the difference condensing side pipe temperature T3, and compressor exhaust temperature T5
The difference of saturation temperature Tc corresponding with condensing pressure controls the closedown of electromagnetic valve；And by compressor
The closedown of compression ratio control electromagnetic valve, it is possible to precisely react the pressure condition of compressor, improve by steam
The validity and reliability that three-way electromagnetic valve controls.
In a particular embodiment, A2 >=7 DEG C, H2 >=60Hz, B2 >=60 DEG C, C2 >=15 DEG C, D2 >=15 DEG C,
E2 ＜ 8.
In a second embodiment, D2=10 DEG C, compressor exhaust temperature T5=115 DEG C, condensing pressure correspondence is satisfied
With temperature Tc=100 DEG C, T5-Tc=115 DEG C-100 DEG C=15 DEG C ＞ D2=10 DEG C, so closing bypass solenoid valve.
The structured flowchart of air-conditioning hot-gas bypass electromagnetic valve controlling system of the present invention sees Fig. 3, including for controlling
Hot-gas bypass processed is opened and the bypass solenoid valve that disconnects and for controlling the conditioning control unit of bypass solenoid valve,
Conditioning control unit includes that electromagnetic valve opens control module 100 and closed electromagnetic valve control module 200,
Control module 100 opened by electromagnetic valve, is used for when meeting bypass solenoid valve unlocking condition, airconditioning control
Unit opens solenoid valve；
Electromagnetic valve is opened in control module 100, and bypass solenoid valve unlocking condition is:
Outdoor environment temperature T4 is less than or equal to first environment temperature preset value A1, and compressor frequency INV
H1 more than or equal to first frequency preset value；
And meet with any one in following condition or the combination of several:
Compressor exhaust temperature T5 is less than or equal to first exhaust temperature preset value B1；
The difference of compressor exhaust temperature T5 and condensation side pipe temperature T3 less than or etc. first preset temperature approach C1；
The difference of compressor exhaust temperature T5 saturation temperature Tc corresponding with condensing pressure less than or wait second default
Temperature approach D1；
The compression ratio Pr of compressor more than or etc. the first preset value E1, wherein, Pr=(Pc+0.1)/
(Pe+0.1), Pc is the condensing pressure of compressor, and Pe is the evaporating pressure of compressor.
Closed electromagnetic valve control module 200, is used for when meeting bypass solenoid valve and closing condition, airconditioning control
Unit closes electromagnetic valve；
Wherein, in closed electromagnetic valve control module 200, it is in following condition that bypass solenoid valve closes condition
Any one or the combination of several:
Outdoor environment temperature T4 is more than or equal to second environment temperature preset value A2；
Compressor frequency INV is less than or equal to the H2 of second frequency preset value；
Compressor exhaust temperature T5 is more than or equal to second exhaust temperature preset value B2；
Compressor exhaust temperature T5 presets temperature approach C2 with the difference of condensation side pipe temperature T3 more than or equal to the 3rd；
The difference of compressor exhaust temperature T5 saturation temperature Tc corresponding with condensing pressure is pre-more than or equal to the 4th
If temperature approach D2；
The compression ratio Pr of compressor is less than or equal to the second preset value E2, wherein, and Pr=(Pc+0.1)/
(Pe+0.1), Pc is the condensing pressure of compressor, and Pe is the evaporating pressure of compressor.
Open control module and closed electromagnetic valve control module by electromagnetic valve, perform the unlatching of electromagnetic valve respectively
With the closedown of electromagnetic valve, except using in addition to delivery temperature T5, also by the discharge superheat of compressor, i.e.
Compressor exhaust temperature T5 with condensation side pipe temperature T3 difference, and compressor exhaust temperature T5 with condensation pressure
The difference of power correspondence saturation temperature Tc controls the unlatching of electromagnetic valve；And come by the compression ratio of compressor
Control the unlatching of electromagnetic valve, it is possible to precisely react the pressure condition of compressor, improve hot gas bypass solenoid valve
The validity and reliability controlled.
In closed electromagnetic valve control module, in addition to using delivery temperature T5, also by the aerofluxus of compressor
The degree of superheat, i.e. compressor exhaust temperature T5 and the difference condensing side pipe temperature T3, and compressor exhaust temperature
The difference of T5 saturation temperature Tc corresponding with condensing pressure controls the closedown of electromagnetic valve；And pass through compressor
The closedown of compression ratio control electromagnetic valve, improve effectiveness that hot gas bypass solenoid valve controls and reliable
Property.
The embodiment of the present invention also provides for a kind of air-conditioning, and including air conditioning control device, air conditioning control device is provided with
Above-mentioned air-conditioning hot-gas bypass electromagnetic valve controlling system.
By arranging above-mentioned control system in the control unit of air-conditioning, by the discharge superheat of compressor, i.e.
Compressor exhaust temperature T5 with condensation side pipe temperature T3 difference, and compressor exhaust temperature T5 with condensation pressure
The difference of power correspondence saturation temperature Tc controls the unlatching of electromagnetic valve；And come by the compression ratio of compressor
Control the unlatching of electromagnetic valve, improve the validity and reliability that hot gas bypass solenoid valve controls, improve use
Family is experienced.
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 hot-gas bypass 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 (9)
1. an air-conditioning hot-gas bypass electromagnetic valve control method, air-conditioning includes conditioning control unit, its feature
Being, described conditioning control unit connects to be had for controlling the bypass solenoid valve that hot-gas bypass opens and closes,
When meeting bypass solenoid valve unlocking condition, described conditioning control unit opens described bypass solenoid valve；When full
When foot bypass solenoid valve closes condition, described conditioning control unit closes described bypass solenoid valve；
Wherein, described bypass solenoid valve unlocking condition is:
Outdoor environment temperature T4 is less than or equal to first environment temperature preset value A1, and compressor frequency INV is big
In or equal to the H1 of first frequency preset value；
And meet with any one in following condition or the combination of several:
Compressor exhaust temperature T5 is less than or equal to first exhaust temperature preset value B1；
The difference of described compressor exhaust temperature T5 and condensation side pipe temperature T3 less than or etc. first preset temperature approach
C1；
The difference of described compressor exhaust temperature T5 saturation temperature Tc corresponding with condensing pressure less than or etc. second pre-
If temperature approach D1；
The compression ratio Pr of compressor more than or etc. the first preset value E1, wherein, Pr=(Pc+0.1)/(Pe+0.1),
Pc is the condensing pressure of compressor, and Pe is the evaporating pressure of compressor.
Air-conditioning hot-gas bypass electromagnetic valve control method the most according to claim 1, it is characterised in that
Described bypass solenoid valve closedown condition is the combination of any one in following condition or several:
Outdoor environment temperature T4 is more than or equal to second environment temperature preset value A2；
Compressor frequency INV is less than or equal to the H2 of second frequency preset value；
Compressor exhaust temperature T5 is more than or equal to second exhaust temperature preset value B2；
Described compressor exhaust temperature T5 presets temperature approach with the difference of condensation side pipe temperature T3 more than or equal to the 3rd
C2；
The difference of described compressor exhaust temperature T5 saturation temperature Tc corresponding with condensing pressure is more than or equal to the 4th
Preset temperature approach D2；
The compression ratio Pr of compressor is less than or equal to the second preset value E2, wherein, and Pr=(Pc+0.1)/
(Pe+0.1), Pc is the condensing pressure of compressor, and Pe is the evaporating pressure of compressor.
Air-conditioning hot-gas bypass electromagnetic valve control method the most according to claim 1 and 2, it is characterised in that
0 DEG C of ＜ A1 ＜ 5 DEG C, 40Hz ＜ H1 ＜ 50Hz, 30 DEG C of ＜ B1 ＜ 50 DEG C, 0 DEG C of ＜ C1 ＜ 10 DEG C, 0 DEG C of ＜ D1
＜ 10 DEG C, E1 ＞ 10.
Air-conditioning hot-gas bypass electromagnetic valve control method the most according to claim 2, it is characterised in that A2
>=7 DEG C, H2 >=60Hz, B2 >=60 DEG C, C2 >=15 DEG C, D2 >=15 DEG C, E2 ＜ 8.
5. an air-conditioning hot-gas bypass electromagnetic valve controlling system, including for controlling hot-gas bypass unlatching and breaking
The bypass solenoid valve opened and for controlling the conditioning control unit of described bypass solenoid valve, it is characterised in that institute
State conditioning control unit and include that electromagnetic valve opens control module (100) and closed electromagnetic valve control module (200),
Control module (100) opened by described electromagnetic valve, for when meeting bypass solenoid valve unlocking condition, controls
System opens described bypass solenoid valve；
Described closed electromagnetic valve control module (200), for when meeting bypass solenoid valve and closing condition, controlling
System closes described bypass solenoid valve；
Described electromagnetic valve is opened in control module (100), and described bypass solenoid valve unlocking condition is:
Outdoor environment temperature T4 is less than or equal to first environment temperature preset value A1, and compressor frequency INV is big
In or equal to the H1 of first frequency preset value；
And meet with any one in following condition or the combination of several:
Compressor exhaust temperature T5 is less than or equal to first exhaust temperature preset value B1；
The difference of described compressor exhaust temperature T5 and condensation side pipe temperature T3 less than or etc. first preset temperature approach
C1；
The difference of described compressor exhaust temperature T5 saturation temperature Tc corresponding with condensing pressure less than or etc. second pre-
If temperature approach D1；
The compression ratio Pr of compressor more than or etc. the first preset value E1, wherein, Pr=(Pc+0.1)/(Pe+0.1),
Pc is the condensing pressure of compressor, and Pe is the evaporating pressure of compressor.
Air-conditioning hot-gas bypass electromagnetic valve controlling system the most according to claim 5, it is characterised in that
In described closed electromagnetic valve control module (200), it is in following condition that described bypass solenoid valve closes condition
Any one or the combination of several:
Outdoor environment temperature T4 is more than or equal to second environment temperature preset value A2；
Compressor frequency INV is less than or equal to the H2 of second frequency preset value；
Compressor exhaust temperature T5 is more than or equal to second exhaust temperature preset value B2；
Described compressor exhaust temperature T5 presets temperature approach with the difference of condensation side pipe temperature T3 more than or equal to the 3rd
C2；
The difference of described compressor exhaust temperature T5 saturation temperature Tc corresponding with condensing pressure is more than or equal to the 4th
Preset temperature approach D2；
The compression ratio Pr of compressor is less than or equal to the second preset value E2, wherein, and Pr=(Pc+0.1)/
(Pe+0.1), Pc is the condensing pressure of compressor, and Pe is the evaporating pressure of compressor.
7. according to the air-conditioning hot-gas bypass electromagnetic valve controlling system described in claim 5 or 6, it is characterised in that
0 DEG C of ＜ A1 ＜ 5 DEG C, 40Hz ＜ H1 ＜ 50Hz, 30 DEG C of ＜ B1 ＜ 50 DEG C, 0 DEG C of ＜ C1 ＜ 10 DEG C, 0 DEG C of ＜ D1
＜ 10 DEG C, E1 ＞ 10.
Air-conditioning hot-gas bypass electromagnetic valve controlling system the most according to claim 6, it is characterised in that
A2 >=7 DEG C, H2 >=60Hz, B2 >=60 DEG C, C2 >=15 DEG C, D2 >=15 DEG C, E2 ＜ 8.
9. an air-conditioning, including air conditioning control device, it is characterised in that described air conditioning control device is provided with
Air-conditioning hot-gas bypass electromagnetic valve controlling system described in any one of claim 5 to 8.
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| CN105928276B (en) | 2018-07-17 |
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