CN111578462A - Compressor regulation method and device of air conditioning system, readable medium and electronic equipment - Google Patents
Compressor regulation method and device of air conditioning system, readable medium and electronic equipment Download PDFInfo
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- CN111578462A CN111578462A CN201910122945.3A CN201910122945A CN111578462A CN 111578462 A CN111578462 A CN 111578462A CN 201910122945 A CN201910122945 A CN 201910122945A CN 111578462 A CN111578462 A CN 111578462A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000033228 biological regulation Effects 0.000 title abstract description 13
- 238000001704 evaporation Methods 0.000 claims abstract description 103
- 230000008020 evaporation Effects 0.000 claims abstract description 101
- 239000003507 refrigerant Substances 0.000 claims abstract description 89
- 230000001105 regulatory effect Effects 0.000 claims abstract description 66
- 230000001276 controlling effect Effects 0.000 claims description 44
- 238000012545 processing Methods 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 12
- 230000009467 reduction Effects 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 6
- 238000004590 computer program Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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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
- F24F11/62—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
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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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
- F24F11/70—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
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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Abstract
The invention discloses a compressor regulation and control method, a compressor regulation and control device, a readable medium and electronic equipment of an air conditioning system, wherein the method comprises the following steps: acquiring the evaporation temperature of the air conditioning system; determining an upper limit evaporation temperature and a lower limit evaporation temperature corresponding to the evaporation temperature according to a preset precision deviation value; determining a first refrigerant saturation pressure corresponding to the upper limit evaporation temperature, and determining a second refrigerant saturation pressure corresponding to the lower limit evaporation temperature; detecting suction pressure on a suction side of a compressor of the air conditioning system; and regulating the rotating speed of the compressor of the air conditioning system according to the suction pressure, the first refrigerant saturation pressure and the second refrigerant saturation pressure. By the technical scheme, the air outlet temperature of the indoor unit of the air conditioning system can be controlled more accurately.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to a compressor regulation and control method and device of an air conditioning system, a readable medium and electronic equipment.
Background
In recent years, with the gradual improvement of living standard, air conditioning systems have been widely used. The evaporation temperature of the refrigerant in the air conditioning system directly affects the temperature of the designated space corresponding to the air conditioning system, and the evaporation temperature of the refrigerant is generally regulated and controlled by regulating and controlling the rotating speed of the compressor, so that the air outlet temperature of an indoor unit of the air conditioning system is regulated and controlled, and the temperature of the designated space is further regulated and controlled.
At present, the air outlet temperature of the indoor unit of the air conditioning system is mainly regulated and controlled by detecting the temperature of the air outlet of the indoor unit of the air conditioning system, then comparing the detected temperature with the evaporation temperature set by a user, and regulating and controlling the rotating speed of a compressor of the air conditioning system according to the comparison result.
However, a certain distance exists between the temperature sensor for detecting the temperature of the air outlet of the indoor unit and the refrigerant of the air conditioning system, that is, the detected temperature cannot accurately reflect the actual evaporation temperature of the refrigerant at the corresponding moment, and the above method cannot accurately control the outlet air temperature of the indoor unit of the air conditioning system.
Disclosure of Invention
The invention provides a compressor regulating method and device of an air conditioning system, a readable medium and electronic equipment, which can realize more accurate control on the air outlet temperature of an indoor unit of the air conditioning system.
In a first aspect, the present invention provides a method for regulating and controlling a compressor of an air conditioning system, including:
acquiring the evaporation temperature of the air conditioning system;
determining an upper limit evaporation temperature and a lower limit evaporation temperature corresponding to the evaporation temperature according to a preset precision deviation value;
determining a first refrigerant saturation pressure corresponding to the upper limit evaporation temperature, and determining a second refrigerant saturation pressure corresponding to the lower limit evaporation temperature;
detecting suction pressure on a suction side of a compressor of the air conditioning system;
and regulating the rotating speed of the compressor of the air conditioning system according to the suction pressure, the first refrigerant saturation pressure and the second refrigerant saturation pressure.
Preferably, the first and second electrodes are formed of a metal,
the regulating the rotation speed of the compressor of the air conditioning system according to the suction pressure, the first refrigerant saturation pressure and the second refrigerant saturation pressure comprises:
when the suction pressure is smaller than the second refrigerant saturation pressure, regulating and controlling the rotation speed of the compressor of the air conditioning system to be reduced; or, when the suction pressure is greater than the first refrigerant saturation pressure, regulating and controlling the rotation speed of the compressor of the air conditioning system to increase.
Preferably, the first and second electrodes are formed of a metal,
the regulating and controlling of the reduction of the rotation speed of the compressor of the air conditioning system includes: regulating and controlling the rotating speed of the compressor of the air conditioning system to reduce a first set value;
or, the regulating the increase of the rotation speed of the compressor of the air conditioning system comprises: and regulating and controlling the rotating speed of the compressor of the air conditioning system to increase by a second set value.
Preferably, the first and second electrodes are formed of a metal,
before the determining the upper limit evaporation temperature and the lower limit evaporation temperature corresponding to the evaporation temperature according to the preset precision deviation value, the method further comprises the following steps: and detecting whether the evaporation temperature is greater than a third set value, and if so, giving an alarm.
In a second aspect, the present invention provides a compressor regulating device of an air conditioning system, comprising:
the data acquisition module is used for acquiring the evaporation temperature of the air conditioning system;
the deviation processing module is used for determining the upper limit evaporation temperature and the lower limit evaporation temperature corresponding to the evaporation temperature according to a preset precision deviation value;
the pressure determining module is used for determining a first refrigerant saturation pressure corresponding to the upper limit evaporation temperature and determining a second refrigerant saturation pressure corresponding to the lower limit evaporation temperature;
the pressure detection module is used for detecting the suction pressure of the suction side of the compressor of the air conditioning system;
and the rotating speed regulating and controlling module is used for regulating and controlling the rotating speed of the compressor of the air conditioning system according to the suction pressure, the first refrigerant saturation pressure and the second refrigerant saturation pressure.
Preferably, the first and second electrodes are formed of a metal,
the rotating speed regulating module is used for regulating and controlling the rotating speed of the compressor of the air conditioning system to be reduced when the suction pressure is smaller than the second refrigerant saturation pressure; or, when the suction pressure is greater than the first refrigerant saturation pressure, regulating and controlling the rotation speed of the compressor of the air conditioning system to increase.
Preferably, the first and second electrodes are formed of a metal,
the rotating speed regulating and controlling module is used for regulating and controlling the rotating speed of the compressor of the air conditioning system to reduce a first set value; or regulating and controlling the rotating speed of the compressor of the air conditioning system to increase by a second set value.
Preferably, the first and second electrodes are formed of a metal,
further comprising: a threshold detection module and an alarm processing module; wherein,
the threshold detection module is used for detecting whether the evaporation temperature is greater than a third set value or not, and if so, the alarm processing module is triggered; otherwise, triggering the deviation processing module;
the alarm processing module is used for alarming under the triggering of the threshold detection module
In a third aspect, the invention provides a readable medium comprising executable instructions, which when executed by a processor of an electronic device, perform the method according to any of the first aspect.
In a fourth aspect, the present invention provides an electronic device, comprising a processor and a memory storing execution instructions, wherein when the processor executes the execution instructions stored in the memory, the processor performs the method according to any one of the first aspect.
The invention provides a compressor regulating method, a compressor regulating device, a readable medium and electronic equipment of an air conditioning system, wherein the method comprises the steps of obtaining an evaporation temperature which is set by a user in combination with an actual service requirement (or is determined according to an indoor temperature set by the user in combination with the actual service requirement) and corresponds to the air conditioning system, wherein the evaporation temperature indicates an air outlet temperature of an indoor unit of the air conditioning system required by the user; according to preset precision deviation, an upper limit evaporation temperature and a lower limit evaporation temperature corresponding to the evaporation temperature can be determined, and due to the fact that the actual temperature of the refrigerant of the air conditioner has a certain corresponding relation with the pressure of the refrigerant, the first refrigerant saturation pressure corresponding to the upper limit evaporation temperature can be further determined, and the second refrigerant saturation pressure corresponding to the lower limit evaporation temperature can be further determined; the method comprises the steps that the actual pressure of a refrigerant is indicated by the suction pressure of the suction side of a compressor, the actual evaporation temperature of the refrigerant at the current moment can be more accurately reflected by the detected suction pressure by detecting the suction pressure of the suction side of the compressor, whether the actual air outlet temperature of an indoor unit at the current moment is within the precision range allowed by the evaporation temperature can be more accurately reflected by the size between the detected suction pressure and the saturation pressure of a first refrigerant and the saturation pressure of a second refrigerant, and the air outlet temperature of the indoor unit of the air-conditioning system can be more accurately controlled by regulating and controlling the rotating speed of the compressor of the air-conditioning system according to the detected suction pressure, the saturation pressure of the first refrigerant and the saturation pressure of the second refrigerant.
Drawings
In order to more clearly illustrate the embodiments or the prior art solutions of the present invention, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a schematic flow chart illustrating a method for controlling a compressor of an air conditioning system according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating a method for controlling a compressor of an air conditioning system according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a control device for a compressor of an air conditioning system according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a regulation device of a compressor of another air conditioning system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail and completely with reference to the following embodiments and accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a method for regulating and controlling a compressor of an air conditioning system, including the following steps 101 to 105:
and 101, acquiring the evaporation temperature of the air conditioning system.
In a possible implementation manner, the evaporating temperature may be set by the user in combination with the actual service requirement, and the evaporating temperature indicates the air outlet temperature of the indoor unit of the air conditioning system required by the user.
In another possible implementation manner, when the heat load of the designated space corresponding to the air conditioning system is constant, the evaporation temperature may be determined according to parameters, such as the indoor temperature of the designated space, the actual temperature of the designated space at the current time, and the heat load, set by the user in combination with the actual service demand of the user.
Here, the air conditioning system may specifically be a multi-connected unit central air conditioning system, but may also be other types of air conditioning systems.
In order to avoid that the obtained evaporation temperature is too high, and the heat transfer temperature difference of the indoor unit of the air conditioning system is too much decreased when the subsequent regulation and control step is performed according to the too high evaporation temperature, so that the air conditioning system cannot provide the cooling capacity required by the specified space, referring to fig. 2, in an embodiment of the present invention, before step 102, the method further includes:
and step 202, alarming.
It is obvious that the third set value may be determined by the user in combination with the actual physical parameters of the air conditioning system.
And 102, determining an upper limit evaporation temperature and a lower limit evaporation temperature corresponding to the evaporation temperature according to a preset precision deviation value.
Here, the precision deviation value may be an empirical value set by the user in combination with the actual service scenario, and generally, the precision deviation may be 0.5 degrees celsius; then, for the obtained evaporation temperature T, it can be determined that the corresponding upper limit evaporation temperature is (T +0.5) celsius and the corresponding lower limit evaporation temperature is (T-0.5) celsius.
As will be understood by those skilled in the art, for the refrigerant, there is a certain corresponding relationship between the temperature and the pressure, the corresponding relationship between the temperature and the pressure of the refrigerant can be recorded in advance by a temperature-pressure comparison table, and then the form of the temperature-pressure comparison table is usually queried to obtain a first refrigerant saturation pressure corresponding to the upper limit evaporation temperature and a second refrigerant saturation pressure corresponding to the lower limit evaporation temperature.
And 104, detecting the suction pressure of the suction side of the compressor of the air conditioning system.
The actual pressure of the refrigerant is indicated by the suction pressure on the suction side of the compressor, the actual evaporation temperature of the refrigerant at the current moment can be more accurately reflected by the detected suction pressure by detecting the suction pressure on the suction side of the compressor, and whether the actual outlet air temperature of the indoor unit at the current moment is within the operating precision range of the evaporation temperature can be more accurately reflected by the size between the detected suction pressure and the saturation pressure of the first refrigerant and the saturation pressure of the second refrigerant.
And 105, regulating and controlling the rotating speed of the compressor of the air conditioning system according to the suction pressure, the first refrigerant saturation pressure and the second refrigerant saturation pressure.
In an embodiment of the present invention, the controlling the rotation speed of the compressor of the air conditioning system according to the suction pressure, the first refrigerant saturation pressure, and the second refrigerant saturation pressure includes:
when the suction pressure is smaller than the second refrigerant saturation pressure, regulating and controlling the rotation speed of the compressor of the air conditioning system to be reduced; or, when the suction pressure is greater than the first refrigerant saturation pressure, regulating and controlling the rotation speed of the compressor of the air conditioning system to increase.
Specifically, whether the suction pressure is smaller than the saturation pressure of the second refrigerant or not can be detected, if so, it is indicated that the actual outlet air temperature of the indoor unit at the current moment is smaller than the lower-limit evaporation temperature, and the actual outlet air temperature of the indoor unit at the current moment exceeds the precision range allowed by the evaporation temperature, which may cause the temperature of the designated space corresponding to the air conditioning system to be too low and affect the comfort level of the designated space, at this time, the rotation speed of the compressor of the air conditioning system can be regulated and controlled to be reduced, that is, the working frequency of the compressor is regulated and controlled to be reduced to increase the temperature of the refrigerant, so that the outlet air temperature of the indoor unit is increased to approach the obtained evaporation temperature, and thus the outlet air; if the air suction pressure is not less than the saturation pressure of the second refrigerant, continuously detecting whether the air suction pressure is greater than the saturation pressure of the first refrigerant, if so, indicating that the actual air outlet temperature of the indoor unit at the current moment is greater than the upper limit evaporation temperature, and the actual air outlet temperature of the indoor unit at the current moment exceeds the precision range allowed by the evaporation temperature, which may cause the temperature of the designated space corresponding to the air conditioning system to be too high and affect the comfort level of the designated space, at the moment, the rotation speed of a compressor of the air conditioning system can be regulated and controlled to be increased, namely the working frequency of the compressor is regulated and controlled to be increased to reduce the temperature of the refrigerant, so that the air outlet temperature of the indoor unit is reduced to approach the obtained evaporation temperature, and thus the air outlet temperature; if the suction pressure is not less than the second refrigerant saturation pressure and not more than the first refrigerant saturation pressure, the actual outlet air temperature of the indoor unit at the current moment does not exceed the precision range allowed by the evaporation temperature, and the compressor of the air conditioning system can be maintained in the original running state without regulating and controlling the compressor again.
In order to avoid the overlarge change of the rotating speed of the compressor and further avoid the influence of the larger change of the temperature in the designated space corresponding to the air conditioning system on the comfort level of the air conditioning system in a very short time, in one embodiment of the invention,
the regulating and controlling of the reduction of the rotation speed of the compressor of the air conditioning system includes: regulating and controlling the rotating speed of the compressor of the air conditioning system to reduce a first set value;
or, the regulating the increase of the rotation speed of the compressor of the air conditioning system comprises: and regulating and controlling the rotating speed of the compressor of the air conditioning system to increase by a second set value.
Obviously, the first setting value and the second setting value may be relatively small experience values set by the user in combination with the actual service scenario, and the first setting value and the second setting value may be the same.
In this embodiment, after the rotational speed of the compressor is adjusted once, and the compressor operates at a new rotational speed, the actual outlet air temperature of the indoor unit in the air conditioning system may still not be within the precision range allowed by the evaporation temperature, so that after the rotational speed of the compressor is adjusted once, the cumulative time of the compressor operating at the adjusted rotational speed may be recorded, and when the recorded cumulative time reaches the preset length, step 104 may be executed again; therefore, the actual air outlet temperature of the indoor unit in the air conditioning system can be within the precision range allowed by the evaporation temperature by regulating and controlling the rotating speed of the compressor once or for multiple times.
Based on the same concept as the method embodiment of the present invention, please refer to fig. 3, an embodiment of the present invention further provides a compressor control device of an air conditioning system, in a preferred embodiment, the compressor control device of the air conditioning system is composed of a plurality of program modules composed of computer program instructions, and the module referred to in the present invention refers to a series of computer program instruction segments, which are executed by a processor of an electronic device (such as fig. 4) and can complete a fixed function, and are stored in a memory. The compressor regulating device of the air conditioning system comprises:
a data acquisition module 301, configured to acquire an evaporation temperature of the air conditioning system;
a deviation processing module 302, configured to determine an upper limit evaporation temperature and a lower limit evaporation temperature corresponding to the evaporation temperature according to a preset precision deviation value;
a pressure determining module 303, configured to determine a first refrigerant saturation pressure corresponding to the upper limit evaporation temperature, and determine a second refrigerant saturation pressure corresponding to the lower limit evaporation temperature;
a pressure detection module 304, configured to detect a suction pressure on a suction side of a compressor of the air conditioning system;
a rotation speed regulation module 305, configured to regulate a rotation speed of the compressor of the air conditioning system according to the suction pressure, the first refrigerant saturation pressure, and the second refrigerant saturation pressure.
In an embodiment of the present invention, the rotation speed regulation module 305 is configured to regulate a rotation speed of the compressor of the air conditioning system to decrease when the suction pressure is less than the second refrigerant saturation pressure; or, when the suction pressure is greater than the first refrigerant saturation pressure, regulating and controlling the rotation speed of the compressor of the air conditioning system to increase.
In an embodiment of the present invention, the rotation speed regulation module 305 is configured to regulate and control a rotation speed of the compressor of the air conditioning system to decrease by a first set value; or regulating and controlling the rotating speed of the compressor of the air conditioning system to increase by a second set value.
Referring to fig. 5, in an embodiment of the present invention, the method further includes: a threshold detection module 501 and an alarm processing module 502; wherein,
the threshold detection module 501 is configured to detect whether the evaporation temperature is greater than a third set value, and if so, trigger the alarm processing module 502; otherwise, triggering the deviation processing module 302;
the alarm processing module 502 is configured to perform an alarm under the trigger of the threshold detection module 501.
For convenience of description, the above device embodiments are described with functions divided into various units or modules, and the functions of the units or modules may be implemented in one or more software and/or hardware when implementing the present invention.
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. On the hardware level, the electronic device includes a processor 401 and a memory 402 storing execution instructions, and optionally an internal bus 403 and a network interface 404. The memory 402 may include a memory 4021, such as a Random-access memory (RAM), and may further include a non-volatile memory 4022 (e.g., at least 1 disk memory); the processor 401, the network interface 402, and the memory may be connected to each other by an internal bus 403, and the internal bus 403 may be an ISA (Industry standard architecture) bus, a PCI (Peripheral Component Interconnect) bus, an EISA (extended Industry standard architecture) bus, or the like; the internal bus 403 may be divided into an address bus, a data bus, a control bus, etc., and only one bi-directional arrow is shown in fig. 4 for convenience of illustration, but does not indicate only one bus or one type of bus. Of course, the electronic device may also include hardware required for other services. When the processor executes the execution instructions stored in the memory, the processor executes the method described in any one of the embodiments of the present invention and is at least used for executing:
acquiring the evaporation temperature of the air conditioning system;
determining an upper limit evaporation temperature and a lower limit evaporation temperature corresponding to the evaporation temperature according to a preset precision deviation value;
determining a first refrigerant saturation pressure corresponding to the upper limit evaporation temperature, and determining a second refrigerant saturation pressure corresponding to the lower limit evaporation temperature;
detecting suction pressure on a suction side of a compressor of the air conditioning system;
and regulating the rotating speed of the compressor of the air conditioning system according to the suction pressure, the first refrigerant saturation pressure and the second refrigerant saturation pressure.
In a possible implementation manner, the processor reads the corresponding execution instruction from the nonvolatile memory to the memory and then runs the corresponding execution instruction, and the corresponding execution instruction can also be obtained from other equipment, so as to form the compressor regulation and control device of the air conditioning system on a logic level. The processor executes the execution instruction stored in the memory, so that the compressor regulation and control method of the air conditioning system provided by any embodiment of the invention is realized through the executed execution instruction.
The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The embodiment of the invention also provides a computer readable medium, which comprises an execution instruction, and when a processor of the electronic device executes the execution instruction, the electronic device executes the method provided in any embodiment of the invention. The electronic device may specifically be the electronic device shown in fig. 4; the execution instruction is a computer program corresponding to a compressor regulation and control device of the air conditioning system.
The electronic device described in the foregoing embodiments may be a computer.
In summary, in the technical solutions provided in the embodiments of the present invention, by obtaining the evaporation temperature corresponding to the air conditioning system, which is set by the user in combination with the actual service requirement (or determined according to the indoor temperature set by the user in combination with the actual service requirement), the evaporation temperature indicates the air outlet temperature of the indoor unit of the air conditioning system, which is required by the user; according to preset precision deviation, an upper limit evaporation temperature and a lower limit evaporation temperature corresponding to the evaporation temperature can be determined, and due to the fact that the actual temperature of the refrigerant of the air conditioner has a certain corresponding relation with the pressure of the refrigerant, the first refrigerant saturation pressure corresponding to the upper limit evaporation temperature can be further determined, and the second refrigerant saturation pressure corresponding to the lower limit evaporation temperature can be further determined; the method comprises the steps that the actual pressure of a refrigerant is indicated by the suction pressure of the suction side of a compressor, the actual evaporation temperature of the refrigerant at the current moment can be more accurately reflected by the detected suction pressure by detecting the suction pressure of the suction side of the compressor, whether the actual air outlet temperature of an indoor unit at the current moment is within the precision range allowed by the evaporation temperature can be more accurately reflected by the size between the detected suction pressure and the saturation pressure of a first refrigerant and the saturation pressure of a second refrigerant, and the air outlet temperature of the indoor unit of the air-conditioning system can be more accurately controlled by regulating and controlling the rotating speed of the compressor of the air-conditioning system according to the detected suction pressure, the saturation pressure of the first refrigerant and the saturation pressure of the second refrigerant.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects.
The embodiments of the present invention are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the apparatus embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A method for regulating and controlling a compressor of an air conditioning system is characterized by comprising the following steps:
acquiring the evaporation temperature of the air conditioning system;
determining an upper limit evaporation temperature and a lower limit evaporation temperature corresponding to the evaporation temperature according to a preset precision deviation value;
determining a first refrigerant saturation pressure corresponding to the upper limit evaporation temperature, and determining a second refrigerant saturation pressure corresponding to the lower limit evaporation temperature;
detecting suction pressure on a suction side of a compressor of the air conditioning system;
and regulating the rotating speed of the compressor of the air conditioning system according to the suction pressure, the first refrigerant saturation pressure and the second refrigerant saturation pressure.
2. The method of claim 1,
the regulating the rotation speed of the compressor of the air conditioning system according to the suction pressure, the first refrigerant saturation pressure and the second refrigerant saturation pressure comprises:
when the suction pressure is smaller than the second refrigerant saturation pressure, regulating and controlling the rotation speed of the compressor of the air conditioning system to be reduced; or, when the suction pressure is greater than the first refrigerant saturation pressure, regulating and controlling the rotation speed of the compressor of the air conditioning system to increase.
3. The method of claim 2,
the regulating and controlling of the reduction of the rotation speed of the compressor of the air conditioning system includes: regulating and controlling the rotating speed of the compressor of the air conditioning system to reduce a first set value;
or, the regulating the increase of the rotation speed of the compressor of the air conditioning system comprises: and regulating and controlling the rotating speed of the compressor of the air conditioning system to increase by a second set value.
4. The method according to any one of claims 1 to 3,
before the determining the upper limit evaporation temperature and the lower limit evaporation temperature corresponding to the evaporation temperature according to the preset precision deviation value, the method further comprises the following steps: and detecting whether the evaporation temperature is greater than a third set value, and if so, giving an alarm.
5. A compressor regulating device of an air conditioning system, comprising:
the data acquisition module is used for acquiring the evaporation temperature of the air conditioning system;
the deviation processing module is used for determining the upper limit evaporation temperature and the lower limit evaporation temperature corresponding to the evaporation temperature according to a preset precision deviation value;
the pressure determining module is used for determining a first refrigerant saturation pressure corresponding to the upper limit evaporation temperature and determining a second refrigerant saturation pressure corresponding to the lower limit evaporation temperature;
the pressure detection module is used for detecting the suction pressure of the suction side of the compressor of the air conditioning system;
and the rotating speed regulating and controlling module is used for regulating and controlling the rotating speed of the compressor of the air conditioning system according to the suction pressure, the first refrigerant saturation pressure and the second refrigerant saturation pressure.
6. The apparatus of claim 5,
the rotating speed regulating module is used for regulating and controlling the rotating speed of the compressor of the air conditioning system to be reduced when the suction pressure is smaller than the second refrigerant saturation pressure; or, when the suction pressure is greater than the first refrigerant saturation pressure, regulating and controlling the rotation speed of the compressor of the air conditioning system to increase.
7. The apparatus of claim 6,
the rotating speed regulating and controlling module is used for regulating and controlling the rotating speed of the compressor of the air conditioning system to reduce a first set value; or regulating and controlling the rotating speed of the compressor of the air conditioning system to increase by a second set value.
8. The apparatus according to any one of claims 5 to 7,
further comprising: a threshold detection module and an alarm processing module; wherein,
the threshold detection module is used for detecting whether the evaporation temperature is greater than a third set value or not, and if so, the alarm processing module is triggered; otherwise, triggering the deviation processing module;
and the alarm processing module is used for giving an alarm under the triggering of the threshold detection module.
9. A readable medium comprising executable instructions which, when executed by a processor of an electronic device, cause the electronic device to perform the method of any of claims 1 to 4.
10. An electronic device comprising a processor and a memory storing execution instructions, the processor performing the method of any of claims 1-4 when the processor executes the execution instructions stored by the memory.
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