CN108278713A - A kind of compress control method and device - Google Patents

A kind of compress control method and device Download PDF

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Publication number
CN108278713A
CN108278713A CN201810054562.2A CN201810054562A CN108278713A CN 108278713 A CN108278713 A CN 108278713A CN 201810054562 A CN201810054562 A CN 201810054562A CN 108278713 A CN108278713 A CN 108278713A
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China
Prior art keywords
temperature
pressure sensor
control
pressure
frequency
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CN201810054562.2A
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CN108278713B (en
Inventor
谷月明
王传华
张建鹏
宋鹏
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

This application provides a kind of compress control method and devices, wherein the method includes:System pressure judging result is received, if the system pressure judging result is overvoltage, sends out anticipation control signal;Signal is controlled according to the anticipation, detects temperature, environment temperature and the delivery temperature of high pressure sensor respectively;Using at least arbitrary two kinds of control system pressure in operations described below:Press frequency control operation is executed according to the temperature of the high pressure sensor, wind turbine gear control operation is executed according to the temperature and environment temperature of the high pressure sensor, executes electronic expansion valve opening control operation according to delivery temperature.The application, which achieves, realizes system pressure automation control, ensures the technique effect of the stability of system pressure.

Description

A kind of compress control method and device
Technical field
This application involves automation control areas, in particular to a kind of compress control method and device.
Background technology
Within air-conditioning systems, to ensure the operation of system health stabilization, some safety safeguard measures can be set, wherein high Pressure measure protection is an important safeguard measure.
Within air-conditioning systems, there can be high pressure explosion equivalent risk since system pressure is excessively high, so often needing that high pressure is arranged Safeguard measure.Existing high voltage protective measure is typically to use mechanical control method, specifically, when system pressure is more than risk When pressure value, stop operation of air conditioner system, then by manually solving the system failure.
Inventor has found that existing mechanical control method, since the risk pressure value of setting is usually higher, system still may be used It can be run under the slightly less than high pressure conditions of risk pressure value, on system, there are certain impacts and influence, meanwhile, when system is more than When risk pressure value, system is out of service, needs to solve the system failure by the way of artificial, can also influence normally to use.
Invention content
The embodiment of the present application provides a kind of compress control method and device, and system pressure automation control may be implemented, To ensure the stability of system pressure.
In one embodiment, a kind of compress control method, including:
System pressure judging result is received, if the system pressure judging result is more than preset pressure, sends out anticipation control Signal processed;
Signal is controlled according to the anticipation, detects temperature, environment temperature and the delivery temperature of high pressure sensor respectively;
Using at least arbitrary two kinds of control system pressure in operations described below:According to the temperature of the high pressure sensor Execute press frequency control operation, wind turbine gear control operation is executed according to the temperature and environment temperature of the high pressure sensor, Electronic expansion valve opening control operation is executed according to delivery temperature.
In one embodiment, described that compressor frequency control operation packet is executed according to the temperature of the high pressure sensor It includes:If the temperature of the high pressure sensor is greater than or equal to basal temperature threshold value, executes compressor limit frequency and operate.
In one embodiment, it if the temperature of the high pressure sensor is greater than or equal to basal temperature threshold value, holds Row compressor limit frequency operates, including:
It is spaced the first preset time period, the temperature of first time high pressure sensor is obtained, if the first time high pressure sensor Temperature be greater than or equal to the first temperature, and the compressor frequency be more than lowest frequency value, then the compressor frequency is dropped Low first predeterminated frequency value;First temperature is:The basal temperature threshold value adds 4 degrees Celsius.
In one embodiment, the compress control method further includes:It is spaced first preset time period, obtains the The temperature of secondary high-pressure sensor;If the temperature of second of high pressure sensor is greater than or equal to the first temperature, and the pressure Contracting unit frequency is more than lowest frequency value, then reduces the second predeterminated frequency value of the compressor frequency;Alternatively, if described second high For the temperature of pressure sensor in the range of second temperature to third temperature, then the compressor frequency is constant;The second temperature For:The basal temperature threshold value subtracts 2 degree Celsius;The third temperature is:The basal temperature threshold value adds 3 degrees Celsius.
In one embodiment, the compress control method further includes:It is spaced first preset time period, obtains the The temperature of high pressure sensor three times;If the temperature of the third time high pressure sensor is greater than or equal to the first temperature, and the pressure Contracting unit frequency is more than lowest frequency value, then reduces the compressor frequency third predeterminated frequency value;If alternatively, the third time is high For the temperature of pressure sensor in the range of second temperature to third temperature, then the compressor frequency is constant;The second temperature For:The basal temperature threshold value subtracts 2 degree Celsius;The third temperature is:The basal temperature threshold value adds 3 degrees Celsius.
In one embodiment, the compress control method further includes:The high pressure after compressor frequency controls will be executed Temperature after the temperature of sensor is executed as high pressure sensor detects temperature after the high pressure sensor executes, according to the height Temperature adjusts the compressor frequency after pressure sensor executes.
In one embodiment, temperature adjusts the compressor frequency after the execution according to the high pressure sensor, Including:
If temperature keeps the compressor in the range of the first temperature to four temperature after the high pressure sensor executes Frequency is constant;Alternatively,
If temperature is less than the 5th temperature after the high pressure sensor executes, after being spaced the second preset time period, described in update Compressor frequency;
First temperature is:The basal temperature threshold value adds 4 degrees Celsius;4th temperature is:The basal temperature Threshold value adds 5 degrees Celsius;5th temperature is:The basal temperature threshold value subtracts 3 degree Celsius.
In one embodiment, the basal temperature threshold value is determined according to defrost temperature.
In one embodiment, described to determine that the basal temperature threshold value includes according to defrost temperature:
If the defrost temperature is greater than or equal to -13 degrees Celsius, the basal temperature threshold value is 58 degrees Celsius;Alternatively,
If the defrost temperature is less than -13 degrees Celsius, the basal temperature threshold value is obtained using following formula:
P=1.5TDefrost+ 80 degrees Celsius;
The P indicates that basal temperature threshold value, unit are degree Celsius;TDefrostIndicate that defrost temperature, unit are degree Celsius.
In one embodiment, described that wind turbine gear control is executed according to the temperature and environment temperature of the high pressure sensor System operation, including:
If environment temperature is greater than or equal to 45 degrees Celsius, the wind turbine is adjusted to highest gear;Alternatively,
If environment temperature is less than 45 degrees Celsius, the control operation of wind turbine gear is executed according to the temperature of the high pressure sensor.
In one embodiment, it is described according to the high pressure sensor when environment temperature is less than 45 degrees Celsius Temperature executes the control operation of wind turbine gear, including:
If the temperature of the high pressure sensor is more than 35 degrees Celsius, and the temperature of the high pressure sensor is less than or equal to 45 Degree Celsius, keep the current gear of the wind turbine;Alternatively,
If the temperature of high pressure sensor is more than 45 degrees Celsius, the gear of one grade of wind turbine is turned up;Alternatively,
If the temperature of high pressure sensor is less than or equal to 35 degrees Celsius, the gear of one grade of wind turbine is turned down.
In one embodiment, after being turned up one grade or turning down the gear of one grade of wind turbine, the method further includes:
After being spaced third preset time period, the temperature of high pressure sensor is obtained;
If the temperature of the high pressure sensor obtained is more than 45 degrees Celsius, the gear of one grade of wind turbine is turned up;If alternatively, obtaining The temperature of the high pressure sensor taken is less than or equal to 35 degrees Celsius, turns down the gear of one grade of wind turbine.
In one embodiment, described to include according to delivery temperature execution electronic expansion valve opening control operation:
If the delivery temperature is less than 92 degrees Celsius, the electric expansion valve restores degree of superheat control;Alternatively,
If the delivery temperature is greater than or equal to 95 degrees Celsius, and the delivery temperature is less than 102 degrees Celsius, the electronics Expansion valve opening adds 5 steps;Alternatively,
If the delivery temperature is greater than or equal to 102 degrees Celsius, and the delivery temperature is less than 105 degrees Celsius, the electricity Sub- expansion valve opening adds 10 steps.
In one embodiment, a kind of pressure control device, including:Signal generation module, detection starting module and tune Mould preparation block;Wherein,
The signal generation module, for receiving system pressure judging result, if the system pressure judging result is big In preset pressure, anticipation control signal is sent out;
The detection starting module detects temperature, the ring of high pressure sensor respectively for controlling signal according to the anticipation Border temperature and delivery temperature;
The adjustment module, for using at least arbitrary two kinds of control system pressure in operations described below:According to institute The temperature for stating high pressure sensor executes press frequency control operation, is executed according to the temperature and environment temperature of the high pressure sensor Wind turbine gear control operation executes electronic expansion valve opening control operation according to delivery temperature.
In one embodiment, it is described adjustment module include it is following in any two:Frequency control module, gear control Molding block, electronic expansion valve controls module;
The frequency control module, for executing press frequency control operation according to the temperature of the high pressure sensor;
The gear control module, for executing wind turbine gear control according to the temperature and environment temperature of the high pressure sensor System operation;
The electronic expansion valve controls module, for executing electronic expansion valve opening control operation according to delivery temperature.
In one embodiment, the frequency control module, specifically for being more than when the temperature of the high pressure sensor Or when equal to basal temperature threshold value, executes compressor limit frequency and operate.
In one embodiment, the frequency control module, after being specifically additionally operable to detection execution compressor frequency control High pressure sensor temperature, i.e., high pressure sensor execute after temperature, according to the high pressure sensor execute after temperature adjust institute State compressor frequency.
In the above-described embodiments, using compress control method provided by the embodiments of the present application and device, can system by Before impacting with high pressure, carries out judging analyzing processing in advance in advance, realize pressure control.During carrying out pressure control, using electricity Sub- expansion valve opening control, compressor frequency control, wind turbine gear control arbitrary two kinds of sides participated in jointly in three kinds of control Formula realizes automatically controlling for system pressure, can guarantee that system pressure in normal range (NR), reduces system without artificial treatment The probability of happening of failure.
Description of the drawings
The attached drawing constituted part of this application is used for providing further understanding of the present application, the schematic reality of the application Example and its explanation are applied for explaining the application, does not constitute the improper restriction to the application.In the accompanying drawings:
Fig. 1 is the flow chart of the compress control method of the application one embodiment;
Fig. 2 is the module map of the pressure control device of the application one embodiment.
Specific implementation mode
It is right with reference to embodiment and attached drawing to make the purpose, technical scheme and advantage of the application be more clearly understood The application is described in further details.Here, the exemplary embodiment and its explanation of the application be for explaining the application, but simultaneously Not as the restriction to the application.
Fig. 1 is the flow chart according to the compress control method of the embodiment of the present application.As shown in Figure 1, the pressure controlling party Method may comprise steps of.
S101:System pressure judging result is received, if the system pressure judging result is more than preset pressure, is sent out pre- Sentence control signal.
The system pressure judging result can judge whether system pressure is more than the result of preset pressure.
The anticipation control signal can be the instruction for carrying out pressure control.
S102:Signal is controlled according to the anticipation, detects the temperature, environment temperature and exhaust temperature of high pressure sensor respectively Degree.
Signal is controlled according to the anticipation, temperature, environment temperature and the exhaust of high pressure sensor can be monitored in real time respectively Temperature.
S103:Using at least arbitrary two kinds of control system pressure in operations described below:According to the high pressure sensor Temperature execute press frequency control operation, execute the control of wind turbine gear according to the temperature and environment temperature of the high pressure sensor Operation executes electronic expansion valve opening control operation according to delivery temperature.
According to the temperature of the high pressure sensor, the control operation of press frequency can be executed.
In one embodiment, it if the temperature of the high pressure sensor is greater than or equal to basal temperature threshold value, can hold Row compressor limit frequency operates.
In one embodiment, the basal temperature threshold value can be determined according to defrost temperature.
Specifically, if the defrost temperature is more than or equal to -13 degrees Celsius, the basal temperature threshold value can be 58 Celsius Degree;Alternatively,
If the defrost temperature is less than -13 degrees Celsius, the basal temperature threshold value can be:
P=1.5TDefrost+ 80 degrees Celsius;Wherein, the P can indicate basal temperature threshold value, and unit is degree Celsius, described TDefrostIt can indicate that defrost temperature, unit are degree Celsius.
In one embodiment, described to hold if the temperature of the high pressure sensor is greater than or equal to basal temperature threshold value Row compressor limit frequency operates, and can specifically include:It is spaced the first preset time period, the temperature of first time high pressure sensor can be obtained Degree, if the temperature of the first time high pressure sensor is greater than or equal to the first temperature, and the compressor frequency is more than lowest frequency The compressor frequency can then be reduced the first predeterminated frequency value by rate value.Wherein, first temperature can be:The base Plinth temperature threshold adds 4 degrees Celsius.First predeterminated frequency value can be 15 hertz.
In another embodiment, the method can also include:It is spaced first preset time period, can be obtained The temperature of second of high pressure sensor, if the temperature of second of high pressure sensor is greater than or equal to the first temperature, and it is described Compressor frequency is more than lowest frequency value, then can reduce the second predeterminated frequency value of the compressor frequency;If alternatively, described For the temperature of secondary high-pressure sensor in the range of second temperature to third temperature, then the compressor frequency can be constant.Its In, the second temperature can be:The basal temperature threshold value subtracts 2 degree Celsius.The third temperature can be:The basis temperature Degree threshold value adds 3 degrees Celsius.Second predeterminated frequency value can be 12 hertz.
In another embodiment, the method can also include:It is spaced first preset time period, can be obtained The temperature of third time high pressure sensor, if the temperature of the third time high pressure sensor is greater than or equal to the first temperature, and it is described Compressor frequency is more than lowest frequency value, then can reduce the compressor frequency third predeterminated frequency value;If alternatively, described For the temperature of high pressure sensor in the range of second temperature to third temperature, then the compressor frequency can be constant three times.Its In, the third predeterminated frequency value can be 8 hertz.
In one embodiment, first preset time period can be 30~50 seconds, for example, can be 40 seconds.
In another embodiment, after executing compressor limit frequency and operating, the method can also include:Pressure will be executed Temperature after the temperature of high pressure sensor after the control of contracting unit frequency is executed as high pressure sensor, detects the high pressure sensor and holds Temperature after row, temperature adjusts the compressor frequency after being executed according to the high pressure sensor.
In one embodiment, temperature adjusts the compressor frequency after the execution according to the high pressure sensor, It can specifically include:If temperature can be kept in the range of the first temperature to four temperature after the high pressure sensor executes The compressor frequency is constant;If alternatively, temperature is less than the 5th temperature after the high pressure sensor executes, when interval second is default Between after section, update the compressor frequency.Wherein, first temperature can be:The basal temperature threshold value adds 4 degrees Celsius. 4th temperature can be:The basal temperature threshold value adds 5 degrees Celsius.5th temperature can be:The basal temperature Threshold value subtracts 3 degree Celsius.
In one embodiment, second preset time period can be 2 minutes.
In one embodiment, described that wind turbine gear control is executed according to the temperature and environment temperature of the high pressure sensor System operates, and may include:If environment temperature is greater than or equal to 45 degrees Celsius, the wind turbine is adjusted to highest gear;If alternatively, ring Border temperature is less than 45 degrees Celsius, and the control operation of wind turbine gear is executed according to the temperature of the high pressure sensor.
In one embodiment, when environment temperature is less than 45 degrees Celsius, the temperature according to the high pressure sensor The control operation of wind turbine gear is executed, may include:If the temperature of the high pressure sensor is more than 35 degrees Celsius, and the high pressure passes The temperature of sensor is less than or equal to 45 degrees Celsius, keeps the current gear of the wind turbine;Alternatively, if the temperature of high pressure sensor is big In 45 degrees Celsius, the gear of one grade of wind turbine is turned up;If alternatively, the temperature of high pressure sensor be less than or equal to 35 degrees Celsius, Turn down the gear of one grade of wind turbine.
In another embodiment, after being turned up one grade or turning down the gear of one grade of wind turbine, the method can be with Including:After being spaced third preset time period, the temperature of high pressure sensor is obtained;If the temperature of the high pressure sensor obtained is more than 45 Degree Celsius, the gear of one grade of wind turbine is turned up;Alternatively, if the temperature of the high pressure sensor obtained is Celsius less than or equal to 35 Degree, turns down the gear of one grade of wind turbine, until deep low gear.
In one embodiment, the third preset time period can be 60 seconds.
In one embodiment, described specifically to be wrapped according to delivery temperature execution electronic expansion valve opening control operation It includes:If the delivery temperature is less than 92 degrees Celsius, the electric expansion valve restores degree of superheat control;If alternatively, the exhaust is warm Degree is greater than or equal to 95 degrees Celsius, and the delivery temperature is less than 102 degrees Celsius, and the electronic expansion valve opening adds 5 steps;Or Person, if the delivery temperature is greater than or equal to 102 degrees Celsius, and the delivery temperature is less than 105 degrees Celsius, the electronic expansion Valve opening adds 10 steps.
It can be seen from the above description that the embodiment of the present application realizes following technique effect:It is rushed by high pressure in system Before hitting, carries out judging analyzing processing in advance in advance, realize pressure control.During carrying out pressure control, using electronic expansion Valve opening control, compressor frequency control, wind turbine gear control arbitrary two kinds of modes participated in jointly in three kinds of control, realize System pressure automatically controls, and can guarantee that system pressure in normal range (NR), reduces the system failure without artificial treatment Probability of happening.
Based on same inventive concept, a kind of pressure control device is additionally provided in the embodiment of the present application, such as following implementation Described in example.Since the principle that pressure control device solves the problems, such as is similar to compress control method, the reality of pressure control device The implementation that may refer to compress control method is applied, overlaps will not be repeated.It is used below, term " unit " or " mould The combination of the software and/or hardware of predetermined function may be implemented in block ".Although device described in following embodiment is preferably with soft Part is realized, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.
Fig. 2 is a kind of module map of the pressure control device of the embodiment of the present application, as shown in Fig. 2, pressure control dress It sets and may include:Signal generation module 201, detection starting module 202 and adjustment module 203.
The signal generation module 201 can be used for receiving system pressure judging result, if the system pressure judges knot Fruit is overvoltage, sends out anticipation control signal.
The detection starting module 202 can be used for controlling signal according to the anticipation, detect high pressure sensor respectively Temperature, environment temperature and delivery temperature.
The adjustment module 203 can be used for using at least arbitrary two kinds of control system pressure in operations described below: Press frequency control operation is executed according to the temperature of the high pressure sensor, according to the temperature and environment temperature of the high pressure sensor Degree executes wind turbine gear control operation, executes electronic expansion valve opening control operation according to delivery temperature.
In one embodiment, the adjustment module 203, may include it is following in any two (three are shown in attached drawing It is a):Frequency control module 2031, gear control module 2032, electronic expansion valve controls module 2033.
The frequency control module 2031 can be used for executing press FREQUENCY CONTROL according to the temperature of the high pressure sensor Operation.
The gear control module 2032 can be used for executing wind according to the temperature and environment temperature of the high pressure sensor The control operation of machine gear.
The electronic expansion valve controls module 2033 can be used for executing electronic expansion valve opening control according to delivery temperature Operation.
In one embodiment, the frequency control module 2031 specifically can be used for when the high pressure sensor When temperature is greater than or equal to basal temperature threshold value, executes compressor limit frequency and operate.
In another embodiment, the frequency control module 2031 specifically can be also used for detection and execute compressor Temperature after the temperature of high pressure sensor after FREQUENCY CONTROL, i.e. high pressure sensor execute, after being executed according to the high pressure sensor Temperature adjusts the compressor frequency.
Obviously, those skilled in the art should be understood that each module of above-mentioned the embodiment of the present application or each step can be with It is realized with general computing device, they can be concentrated on a single computing device, or be distributed in multiple computing devices On the network formed, optionally, they can be realized with the program code that computing device can perform, it is thus possible to by it Store and be performed by computing device in the storage device, and in some cases, can be to be held different from sequence herein The shown or described step of row, either they are fabricated to each integrated circuit modules or will be multiple in them Module or step are fabricated to single integrated circuit module to realize.In this way, the embodiment of the present application be not limited to it is any specific hard Part and software combine.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field For art personnel, the embodiment of the present application can have various modifications and variations.Within the spirit and principles of this application, made by Any modification, equivalent substitution, improvement and etc. should be included within the protection domain of the application.

Claims (17)

1. a kind of compress control method, which is characterized in that including:
System pressure judging result is received, if the system pressure judging result is more than preset pressure, sends out anticipation control letter Number;
Signal is controlled according to the anticipation, detects temperature, environment temperature and the delivery temperature of high pressure sensor respectively;
Using at least arbitrary two kinds of control system pressure in operations described below:It is executed according to the temperature of the high pressure sensor Press frequency control operation executes wind turbine gear control operation, basis according to the temperature and environment temperature of the high pressure sensor Delivery temperature executes electronic expansion valve opening control operation.
2. a kind of compress control method according to claim 1, which is characterized in that described according to the high pressure sensor Temperature executes compressor frequency control operation:If the temperature of the high pressure sensor is greater than or equal to basal temperature threshold value, Compressor limit frequency is executed to operate.
3. a kind of compress control method according to claim 2, which is characterized in that if the temperature of the high pressure sensor is big In or equal to basal temperature threshold value, the execution compressor limits to be operated frequently, including:
It is spaced the first preset time period, the temperature of first time high pressure sensor is obtained, if the temperature of the first time high pressure sensor Degree is greater than or equal to the first temperature, and the compressor frequency is more than lowest frequency value, then the compressor frequency is reduced by the One predeterminated frequency value;
First temperature is:The basal temperature threshold value adds 4 degrees Celsius.
4. a kind of compress control method according to claim 3, which is characterized in that further include:
It is spaced first preset time period, obtains the temperature of second of high pressure sensor;
If the temperature of second of high pressure sensor is greater than or equal to the first temperature, and the compressor frequency is more than lowest frequency Rate value then reduces the second predeterminated frequency value of the compressor frequency;If alternatively, the temperature of second of high pressure sensor is In the range of two temperature to third temperature, then the compressor frequency is constant;
The second temperature is:The basal temperature threshold value subtracts 2 degree Celsius;The third temperature is:The basal temperature threshold value Add 3 degrees Celsius.
5. a kind of compress control method according to claim 4, which is characterized in that further include:
It is spaced first preset time period, obtains the temperature of third time high pressure sensor;
If the temperature of the third time high pressure sensor is greater than or equal to the first temperature, and the compressor frequency is more than lowest frequency Rate value then reduces the compressor frequency third predeterminated frequency value;If alternatively, the temperature of the third time high pressure sensor is In the range of two temperature to third temperature, then the compressor frequency is constant.
6. a kind of compress control method according to claim 2, which is characterized in that the method further includes:Pressure will be executed Temperature after the temperature of high pressure sensor after the control of contracting unit frequency is executed as high pressure sensor, detects the high pressure sensor and holds Temperature after row, temperature adjusts the compressor frequency after being executed according to the high pressure sensor.
7. a kind of compress control method according to claim 6, which is characterized in that described to be held according to the high pressure sensor Temperature adjusts the compressor frequency after row, including:
If temperature keeps the compressor frequency in the range of the first temperature to four temperature after the high pressure sensor executes It is constant;Alternatively,
If temperature is updating the pressure less than the 5th temperature after being spaced the second preset time period after the high pressure sensor executes Contracting unit frequency;
First temperature is:The basal temperature threshold value adds 4 degrees Celsius;4th temperature is:The basal temperature threshold value Add 5 degrees Celsius;5th temperature is:The basal temperature threshold value subtracts 3 degree Celsius.
8. a kind of compress control method according to any one of claim 2-7, which is characterized in that the basal temperature Threshold value is determined according to defrost temperature.
9. a kind of compress control method according to claim 8, which is characterized in that it is described according to defrost temperature to determine Stating basal temperature threshold value includes:
If the defrost temperature is greater than or equal to -13 degrees Celsius, the basal temperature threshold value is 58 degrees Celsius;Alternatively,
If the defrost temperature is less than -13 degrees Celsius, the basal temperature threshold value is obtained using following formula:
P=1.5TDefrost+80;
The P indicates that basal temperature threshold value, unit are degree Celsius;TDefrostIndicate that defrost temperature, unit are degree Celsius.
10. a kind of compress control method according to claim 1, which is characterized in that described according to the high pressure sensor Temperature and environment temperature execute wind turbine gear control operation, including:
If environment temperature is greater than or equal to 45 degrees Celsius, the wind turbine is adjusted to highest gear;Alternatively,
If environment temperature is less than 45 degrees Celsius, the control operation of wind turbine gear is executed according to the temperature of the high pressure sensor.
11. a kind of compress control method according to claim 10, which is characterized in that it is Celsius that the environment temperature is less than 45 It is described that the control operation of wind turbine gear is executed according to the temperature of the high pressure sensor when spending, including:
If the temperature of the high pressure sensor is more than 35 degrees Celsius, and the temperature of the high pressure sensor is Celsius less than or equal to 45 Degree, keeps the current gear of the wind turbine;Alternatively,
If the temperature of high pressure sensor is more than 45 degrees Celsius, the gear of one grade of wind turbine is turned up;Alternatively,
If the temperature of high pressure sensor is less than or equal to 35 degrees Celsius, the gear of one grade of wind turbine is turned down.
12. a kind of compress control method according to claim 11, which is characterized in that be turned up one grade or turn down described in one grade After the gear of wind turbine, the method further includes:
After being spaced third preset time period, the temperature of high pressure sensor is obtained;
If the temperature of the high pressure sensor obtained is more than 45 degrees Celsius, the gear of one grade of wind turbine is turned up;If alternatively, obtain The temperature of high pressure sensor is less than or equal to 35 degrees Celsius, turns down the gear of one grade of wind turbine.
13. a kind of compress control method according to claim 1, which is characterized in that described to execute electricity according to delivery temperature Sub- expansion valve opening control, which operates, includes:
If the delivery temperature is less than 92 degrees Celsius, the electric expansion valve restores degree of superheat control;Alternatively,
If the delivery temperature is greater than or equal to 95 degrees Celsius, and the delivery temperature is less than 102 degrees Celsius, the electronic expansion Valve opening adds 5 steps;Alternatively,
If the delivery temperature is greater than or equal to 102 degrees Celsius, and the delivery temperature is less than 105 degrees Celsius, and the electronics is swollen Swollen valve opening adds 10 steps.
14. a kind of pressure control device, which is characterized in that including:Signal generation module, detection starting module and adjustment module; Wherein,
The signal generation module, for receiving system pressure judging result, if the system pressure judging result is more than pre- If pressure, anticipation control signal is sent out;
The detection starting module detects temperature, the environment temperature of high pressure sensor respectively for controlling signal according to the anticipation Degree and delivery temperature;
The adjustment module, for using at least arbitrary two kinds of control system pressure in operations described below:According to the height The temperature of pressure sensor executes press frequency control operation, executes wind turbine according to the temperature and environment temperature of the high pressure sensor Gear control operation executes electronic expansion valve opening control operation according to delivery temperature.
15. a kind of pressure control device according to claim 14, which is characterized in that during the adjustment module includes following Any two:Frequency control module, gear control module, electronic expansion valve controls module;
The frequency control module, for executing press frequency control operation according to the temperature of the high pressure sensor;
The gear control module, for executing wind turbine gear control behaviour according to the temperature and environment temperature of the high pressure sensor Make;
The electronic expansion valve controls module, for executing electronic expansion valve opening control operation according to delivery temperature.
16. a kind of pressure control device according to claim 15, which is characterized in that the frequency control module, specifically It is operated for when the temperature of the high pressure sensor is greater than or equal to basal temperature threshold value, executing compressor limit frequency.
17. a kind of pressure control device according to claim 16, which is characterized in that the frequency control module, specifically It is additionally operable to the temperature for the high pressure sensor that detection executes after compressor frequency control, i.e. temperature after high pressure sensor execution, according to Temperature adjusts the compressor frequency after the high pressure sensor executes.
CN201810054562.2A 2018-01-19 2018-01-19 Pressure control method and device Active CN108278713B (en)

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Cited By (3)

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