CN106403170B - Air-conditioner set control method and device - Google Patents
Air-conditioner set control method and device Download PDFInfo
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- CN106403170B CN106403170B CN201610809008.1A CN201610809008A CN106403170B CN 106403170 B CN106403170 B CN 106403170B CN 201610809008 A CN201610809008 A CN 201610809008A CN 106403170 B CN106403170 B CN 106403170B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/40—Pressure, e.g. wind pressure
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a kind of air-conditioner set control method and devices, wherein this method comprises: detecting the pressure value and ambient temperature of the unit after detecting the demand that unit has booting to heat；According to the ambient temperature and the pressure value, the aperture of output power and/or electric expansion valve to the compressor of the unit is controlled.The present invention solves the technical issues of air-conditioning introduces fluctuation of service present in worst cold case, has reached the technical effect that the booting stability of air-conditioner set is effectively ensured.
Description
Technical field
The present invention relates to equipment control technology fields, in particular to a kind of air-conditioner set control method and device.
Background technique
As the requirement that normally can comfortably run under worst cold case to multi-gang air-conditioner is more and more, also have on the market
The product of many low-temperature air conditioners, still, if these air-conditionings long-term (such as: 4 more than hour) (especially exist in low temperature condition
Cold district is chronically at -15 degree areas below) under be not switched on after placement, be switched on suddenly, often air-conditioning system brought to transport
Capable is unstable, and unit operation is possible to protect.
After introducing worst cold case in air-conditioner set, if guaranteeing the stable technical problem of the booting of air-conditioner set, mesh
It is preceding not yet to put forward effective solutions.
Summary of the invention
The embodiment of the invention provides a kind of air-conditioner set control method, with reach be effectively ensured air-conditioner set booting it is steady
Qualitative technical effect, wherein this method comprises:
After detecting the demand that unit has booting to heat, the pressure value and ambient temperature of the unit are detected；
According to the ambient temperature and the pressure value, to the output power and/or electricity of the compressor of the unit
The aperture of sub- expansion valve is controlled.
In one embodiment, the pressure value includes: low pressure value and/or high-pressure value.
In one embodiment, according to the ambient temperature and low pressure value, to the compressor of the unit
Output controlled, comprising:
Determine whether the ambient temperature is greater than the first preset temperature threshold；
If it is greater, then the output of the compressor is controlled, so that the low pressure value is located at the first low pressure area
Between；
If it is less than being equal to, then the output of the compressor is controlled, so that the low pressure value is located at the second low pressure pressure
Power section.
In one embodiment, according to the ambient temperature, high-pressure value and low pressure value, to the machine
The aperture of the electric expansion valve of group is controlled, comprising:
If the high-pressure value is greater than the first preset pressure threshold value, the aperture for controlling the electric expansion valve does not permit
Perhaps it is tuned up；
If the ambient temperature is less than the second preset temperature threshold, the low pressure value is less than the second default pressure
Force threshold, and the total discharge superheat actual value of air-conditioner set is greater than the default degree of superheat, then controls the aperture of the electric expansion valve
Do not allow to be turned down.
In one embodiment, before the pressure value and ambient temperature for detecting the unit, the method is also
Include:
The initial step number of the electric expansion valve for the interior machine being not keyed up in the unit is set as default step Numerical, wherein
The default step Numerical is greater than normal initial step number.
In one embodiment, before the pressure value and ambient temperature for detecting the unit, the method is also
Include:
For the electric expansion valve for the interior machine being not keyed up in the unit, the maximum step number and minimum step number that step number is adjusted are set.
The embodiment of the invention also provides a kind of control device for air-conditioning unit, to reach the booting that air-conditioner set is effectively ensured
The technical effect of stability, wherein the device includes:
Detection module, for after detecting the demand that unit has booting to heat, detecting the pressure value of the unit and outer
Boundary's environment temperature；
Control module, for according to the ambient temperature and the pressure value, to the defeated of the compressor of the unit
The aperture of power and/or electric expansion valve is controlled out.
In one embodiment, the pressure value includes: low pressure value and/or high-pressure value.
In one embodiment, the control module includes:
Determination unit, for determining whether the ambient temperature is greater than the first preset temperature threshold；
First control unit, for determine the ambient temperature be greater than the first preset temperature threshold in the case where,
The output of the compressor is controlled, so that the low pressure value is located at the first low pressure section；
Second control unit, for determining the case where ambient temperature is less than or equal to the first preset temperature threshold
Under, the output of the compressor is controlled, so that the low pressure value is located at the second low pressure section.
In one embodiment, the control module includes:
Third control unit, for controlling institute in the case where the high-pressure value is greater than the first preset pressure threshold value
The aperture for stating electric expansion valve does not allow to be tuned up；
4th control unit is used in the ambient temperature less than the second preset temperature threshold, the low pressure
Value is less than the second preset pressure threshold value, and in the case that the total discharge superheat actual value of air-conditioner set is greater than the default degree of superheat, control
The aperture for making the electric expansion valve does not allow to be turned down.
In one embodiment, further includes: the first setup module, in pressure value and the external world for detecting the unit
Before environment temperature, the initial step number of the electric expansion valve for the interior machine being not keyed up in the unit is set as default step Numerical,
Wherein, the default step Numerical is greater than normal initial step number.
In one embodiment, further includes: the second setup module, in pressure value and the external world for detecting the unit
Before environment temperature, the maximum step number and minimum of step number adjusting are set for the electric expansion valve for the interior machine being not keyed up in the unit
Step number.
In the above-described embodiments, by the pressure value of unit and ambient temperature to the output power of the compressor of unit
It is controlled with the aperture of electric expansion valve, introduces fluctuation of service present in worst cold case so as to effectively solve air-conditioning
The technical issues of, reach the technical effect that the booting stability of air-conditioner set is effectively ensured.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the method flow diagram of air-conditioner set control method according to an embodiment of the present invention；
Fig. 2 is the structural block diagram of control device for air-conditioning unit according to an embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, right below with reference to embodiment and attached drawing
The present invention is described in further details.Here, exemplary embodiment and its explanation of the invention is used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
In view of existing unit is postponed being chronically at low temperature (such as: -15 degree following) operating condition and transfer, booting when
It waits often due to temperature is lower, the pressure parameter of system is relatively low, and unit will go out after often will appear the operation a bit of time
The case where showing low-voltage variation and shutting down, to be unable to satisfy the demand of heating.
In inventive embodiments, primarily directed to the operating condition, in the case where detecting that unit needs to be switched on, follow up system
Pressure and the parameters such as electric expansion valve unit is controlled, the ability output of regulating system, the aperture of electric expansion valve, from
And while guaranteeing unit comfort, it may also reach up the purpose of stable operation of unit.As shown in Figure 1, implementing in the present invention
In example, a kind of control method of air-conditioner set is provided, may comprise steps of:
Step 101: after detecting the demand that unit has booting to heat, detecting the pressure value and external environment of the unit
Temperature；
Step 102: according to the ambient temperature and the pressure value, to the output power of the compressor of the unit
And/or the aperture of electric expansion valve is controlled.
Above-mentioned pressure value may include: low pressure value and/or high-pressure value.
Further, it can be the control of the compressor output to unit to the control of unit, or to electronic expansion
The control of valve opening, such as: according to the ambient temperature and low pressure value, to the output of the compressor of the unit into
Row control, may include: whether the determining ambient temperature is greater than the first preset temperature threshold；If it is greater, then control
The output of the compressor, so that the low pressure value is located at the first low pressure section；If it is less than being equal to, then institute is controlled
The output of compressor is stated, so that the low pressure value is located at the second low pressure section.
That is, different low pressure sections is set for different ambient temperatures, if in some temperature range, just
Low pressure value is controlled in corresponding pressure range, to guarantee the stable operation of unit.
That is, by the pressure and environment temperature of detection air-conditioning system, control ability output guarantees unit in low temperature
Under operating condition, since the hypotony of unit carries out capacity adjustment, guarantees the pressure of unit in the case where hypotony
The output of contracting machine can satisfy the requirement of heating comfort.
For example, it is also possible to according to ambient temperature, high-pressure value and low pressure value, to the electric expansion valve of unit
Aperture controlled, specifically, if may include: the high-pressure value be greater than the first preset pressure threshold value, control
The aperture of the electric expansion valve does not allow to be tuned up；If the ambient temperature is less than the second preset temperature threshold, institute
Low pressure value is stated less than the second preset pressure threshold value, and the total discharge superheat actual value of air-conditioner set is greater than the default degree of superheat,
The aperture for then controlling the electric expansion valve does not allow to be turned down.
If high-pressure value has been lower than the first preset pressure threshold value, the adjustable of the aperture of electric expansion valve can be restored
Big state can control turning down for the aperture of electric expansion valve if low pressure value is greater than the second preset pressure threshold value
State.
In order to guarantee that system low-voltage rises, do not occur frequency limit, at the same in guaranteeing machine leaving air temp to reach heating effect,
And prevent unit when reaching control pressure value, closed when exiting initial step number it is too fast, so as to cause low pressure it is unexpected under
It drops too fast, can control unit in rigid booting, the initial step number of the electric expansion valve for the interior machine being not keyed up in unit is set
To preset step Numerical, wherein default step Numerical is greater than normal initial step number, that is, one bigger initial step number of setting.
When opening interior machine in order to ensure multi-connected machine list, ability can rise up, can be with to guarantee the comfort of air-conditioner set
For the electric expansion valve for the interior machine being not keyed up, the maximum step number and minimum step number that step number is adjusted are set.
In upper example, the standby starting after a long time placement of system unit air conditioner low temperature operating condition for multi-connected machine is controlled,
In the pressure and environment temperature of detection system, control ability output, to guarantee unit under worst cold case, due to the pressure of unit
It is too low, therefore in the case where hypotony, capacity adjustment is carried out, to guarantee that the output of the compressor of unit can satisfy
The comfort requirement of heating.Further, the electronic expansion valve opening being not keyed up by adjusting multi-joint interior machine, guarantees system low-voltage
Rise, frequency limit does not occur, while guaranteeing that the leaving air temp of interior machine can achieve heating effect.
Above-mentioned air-conditioner set control method is illustrated below with reference to a specific embodiment, it is important to note, however, that
The specific embodiment does not constitute improper limitations of the present invention merely to the present invention is better described.
After detecting the demand that unit has booting to heat, following operation can be executed:
S1: the current low pressure value L of detection unitpWith ambient temperature Tout；
S2: according to ambient temperature ToutWith low pressure value Lp, according to the comfort ability of following regular carry out system
It adjusts, controls the output of compressor:
If 1) ToutIt is greater than the set value A, then low pressure value LpControl range is [B, C]；
Such as: if outdoor environment temperature Tout>=-15 DEG C, then low pressure value LpControl range be set as [- 30, it is minimum
Environment temperature -8].
(2) if ToutLess than or equal to setting value D, then low pressure value LpControl range is [E, F].
Such as: if outdoor environment temperature Tout≤ -18 DEG C, then low pressure value LpControl range is set as [minimum environment
Temperature -12, minimum environment temperature -7].
According to above-mentioned rule, the real-time low pressure value of unit is detected, by the control model of real-time low pressure value and setting
It encloses and is compared, then increase or reduce the output of compressor, to low pressure value be maintained in control range, to reach
Maximum comfort requirement.
It carries out, the electronic expansion valve opening for the interior machine being not keyed up can also be controlled, to guarantee the low pressure value of unit
Can rapid increase specifically may include:
1) the initial step number of the electric expansion valve that is not keyed up interior machine of control unit when being just switched on: by the interior machine being not keyed up to
To guarantee that system low-voltage rises frequency limit does not occur for a fixed bigger initial step number S, while guaranteeing interior machine leaving air temp,
Reaching heating effect, and prevents unit when reaching control pressure value, closing is too fast when exiting initial step number, so as to cause
Low pressure declines too fast situation suddenly and generates；
2) the electric expansion valve step number being not keyed up, which is adjusted, limits maximum step number and minimum step number, within ensuring that multi-connected machine list is opened
When machine, ability can rise up, to guarantee comfort.
When actually realizing, maximum step number and minimum step number are the scope limitations adjusted, do not allow to tune up or turn down
Be because meet some conditions, if will toward big adjusting if do not allow out greatly, once exiting this condition, then to continue to adjust
Greatly, until reaching the limitation of maximum step number, specifically:
If system high pressure HpIt is greater than the set value H, then electronic expansion valve controls do not allow to tune up, into after the control, such as
Fruit system high pressure is less than setting value I, then restores to normal control；
If ToutLess than setting value K, then low pressure value LpWhen less than L, and all system exhaust degree of superheat actual value △
Td is greater than the set value M, then the above electronic expansion valve controls do not allow to turn down；Into after the control, low pressure value LpIt is greater than
When setting value N, this control is exited.
Such as: if high pressure Hp>=55 DEG C, then the above electronic expansion valve controls do not allow to tune up, into after the control, even
Continuous 120s maximum Hp53 DEG C of recovery normal controls of <.
If Tout< -18 DEG C, work as Lp≤ -35 DEG C and system [discharge superheat actual value △ Tdcurrent > 15, then
The above electronic expansion valve controls do not allow to be turned down, into after the control, Lp>=-30 exit this control；
Based on the same inventive concept, a kind of control device for air-conditioning unit is additionally provided in the embodiment of the present invention, it is such as following
Described in embodiment.Since the principle that control device for air-conditioning unit solves the problems, such as is similar to air-conditioner set control method, air-conditioning
The implementation of machine set control device may refer to the implementation of air-conditioner set control method, and overlaps will not be repeated.It is following to be used
, the combination of the software and/or hardware of predetermined function may be implemented in term " unit " or " module ".Although following embodiment institute
The device of description preferably realized with software, but the combined realization of hardware or software and hardware be also may and quilt
Conception.Fig. 2 is a kind of structural block diagram of the control device for air-conditioning unit of the embodiment of the present invention, as shown in Fig. 2, may include:
Detection module 201 and control module 202, are below illustrated the structure.
Detection module 201, for detect unit have booting heat demand after, detect the unit pressure value and
Ambient temperature；
Control module 202, for according to the ambient temperature and the pressure value, to the compressor of the unit
The aperture of output power and/or electric expansion valve is controlled.
In one embodiment, the pressure value may include: low pressure value and/or high-pressure value.
In one embodiment, control module 202 may include: determination unit, for determining the external environment temperature
Whether degree is greater than the first preset temperature threshold；First control unit, for determining that it is pre- that the ambient temperature is greater than first
If in the case where temperature threshold, controlling the output of the compressor, so that the low pressure value is located at the first low pressure area
Between；Second control unit, for controlling in the case where determining that the ambient temperature is less than or equal to the first preset temperature threshold
The output of the compressor is made, so that the low pressure value is located at the second low pressure section.
In one embodiment, control module 202 may include: third control unit, in the high-pressure
In the case that value is greater than the first preset pressure threshold value, the aperture for controlling the electric expansion valve does not allow to be tuned up；4th control
Unit, for, less than the second preset temperature threshold, the low pressure value to be less than the second default pressure in the ambient temperature
Force threshold, and in the case that the total discharge superheat actual value of air-conditioner set is greater than the default degree of superheat, control the electric expansion valve
Aperture do not allow to be turned down.
In one embodiment, above-mentioned apparatus can also include: the first setup module, for detecting the unit
Before pressure value and ambient temperature, the initial step number of the electric expansion valve for the interior machine being not keyed up in the unit is set as
Default step Numerical, wherein the default step Numerical is greater than normal initial step number.
In one embodiment, above-mentioned apparatus can also include: the second setup module, for detecting the unit
Before pressure value and ambient temperature, step number adjusting is set most for the electric expansion valve for the interior machine being not keyed up in the unit
Big step number and minimum step number.
It can be seen from the above description that the embodiment of the present invention realizes following technical effect: passing through the pressure of unit
Value and ambient temperature control the output power of the compressor of unit and the aperture of electric expansion valve, so as to have
Effect solves the technical issues of air-conditioning introduces fluctuation of service present in worst cold case, has reached and opening for air-conditioner set is effectively ensured
The technical effect of machine stability.
Obviously, those skilled in the art should be understood that each module of the above-mentioned embodiment of the present invention 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 composed network, 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 held with the sequence for being different from herein
The shown or described step of row, perhaps 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 invention be not limited to it is any specific hard
Part and software combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the embodiment of the present invention can have various modifications and variations.All within the spirits and principles of the present invention, made
Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of air-conditioner set control method characterized by comprising
After detecting the demand that unit has booting to heat, the pressure value and ambient temperature of the unit are detected；
It is swollen to the output power and/or electronics of the compressor of the unit according to the ambient temperature and the pressure value
The aperture of swollen valve is controlled；
The pressure value includes: low pressure value and/or high-pressure value；
According to the ambient temperature and low pressure value, the output of the compressor of the unit is controlled, comprising:
Determine whether the ambient temperature is greater than the first preset temperature threshold；
If it is greater, then the output of the compressor is controlled, so that the low pressure value is located at the first low pressure section；
If it is less than being equal to, then the output of the compressor is controlled, so that the low pressure value is located at the second low pressure area
Between；
According to the ambient temperature, high-pressure value and low pressure value, to the aperture of the electric expansion valve of the unit
It is controlled, comprising:
If the high-pressure value is greater than the first preset pressure threshold value, the aperture for controlling the electric expansion valve does not allow quilt
It tunes up；
If the ambient temperature is less than the second preset temperature threshold, the low pressure value is less than the second preset pressure threshold
Value, and the total discharge superheat actual value of air-conditioner set is greater than the default degree of superheat, then the aperture for controlling the electric expansion valve does not permit
Perhaps it is turned down.
2. the method according to claim 1, wherein in the pressure value and ambient temperature that detect the unit
Before, the method also includes:
The initial step number of the electric expansion valve for the interior machine being not keyed up in the unit is set as default step Numerical, wherein described
Default step Numerical is greater than normal initial step number.
3. the method according to claim 1, wherein in the pressure value and ambient temperature that detect the unit
Before, the method also includes:
For the electric expansion valve for the interior machine being not keyed up in the unit, the maximum step number and minimum step number that step number is adjusted are set.
4. a kind of control device for air-conditioning unit characterized by comprising
Detection module, for after detecting the demand that unit has booting to heat, detecting the pressure value and external world's ring of the unit
Border temperature；
Control module is used for according to the ambient temperature and the pressure value, to the output work of the compressor of the unit
Rate and/or the aperture of electric expansion valve are controlled；
The pressure value includes: low pressure value and/or high-pressure value；
The control module includes:
Determination unit, for determining whether the ambient temperature is greater than the first preset temperature threshold；
First control unit, for controlling in the case where determining that the ambient temperature is greater than the first preset temperature threshold
The output of the compressor, so that the low pressure value is located at the first low pressure section；
Second control unit, for determine the ambient temperature be less than or equal to the first preset temperature threshold in the case where,
The output of the compressor is controlled, so that the low pressure value is located at the second low pressure section；
The control module includes:
Third control unit, for controlling the electricity in the case where the high-pressure value is greater than the first preset pressure threshold value
The aperture of sub- expansion valve does not allow to be tuned up；
4th control unit, for, less than the second preset temperature threshold, the low pressure value to be small in the ambient temperature
In the second preset pressure threshold value, and in the case that the total discharge superheat actual value of air-conditioner set is greater than the default degree of superheat, institute is controlled
The aperture for stating electric expansion valve does not allow to be turned down.
5. device according to claim 4, which is characterized in that further include:
First setup module, for before the pressure value and ambient temperature for detecting the unit, by the unit not
The initial step number of the electric expansion valve of the interior machine of booting is set as default step Numerical, wherein the default step Numerical is greater than normal
Initial step number.
6. device according to claim 4, which is characterized in that further include:
Second setup module, for before the pressure value and ambient temperature for detecting the unit, be in the unit not
The maximum step number and minimum step number that the electric expansion valve setting step number of the interior machine of booting is adjusted.
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| CN201610809008.1A CN106403170B (en) | 2016-09-07 | 2016-09-07 | Air-conditioner set control method and device |
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| CN201610809008.1A CN106403170B (en) | 2016-09-07 | 2016-09-07 | Air-conditioner set control method and device |
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| CN106403170B true CN106403170B (en) | 2019-08-20 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373527B (en) * | 2018-09-12 | 2020-05-26 | 珠海格力电器股份有限公司 | Method, device and equipment for regulating and controlling electronic expansion valve |
| CN109334693B (en) * | 2018-10-26 | 2020-10-02 | 中车南京浦镇车辆有限公司 | Air volume control method for air conditioner of railway vehicle |
| CN110173854B (en) * | 2019-05-29 | 2023-08-22 | 青岛海尔空调电子有限公司 | Low-temperature heating start control method of air conditioner and air conditioner |
| CN113606743B (en) * | 2021-08-10 | 2022-07-15 | 珠海格力电器股份有限公司 | Control method and device of air conditioning unit, storage medium and air conditioning unit |
| CN115435471A (en) * | 2022-09-16 | 2022-12-06 | 宁波奥克斯电气股份有限公司 | Multi-split air conditioner control method and system and air conditioner |
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