CN106642520B - Gas puff Z-pinch method, system, device and the air conditioner of air-conditioning system - Google Patents
Gas puff Z-pinch method, system, device and the air conditioner of air-conditioning system Download PDFInfo
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- CN106642520B CN106642520B CN201610839497.5A CN201610839497A CN106642520B CN 106642520 B CN106642520 B CN 106642520B CN 201610839497 A CN201610839497 A CN 201610839497A CN 106642520 B CN106642520 B CN 106642520B
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- expansion valve
- compressor
- electric expansion
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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
- 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
-
- 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
- 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
- F24F11/70—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
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- 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)
- Air Conditioning Control Device (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses gas puff Z-pinch method, system, device and the air conditioners of a kind of air-conditioning system.Wherein, this method comprises: obtaining the delivery temperature of compressor and the adjustment parameter of electric expansion valve in real time；According to the aperture of the delivery temperature of compressor and the adjustment parameter of electric expansion valve control electric expansion valve.The present invention solves technical problem low to the stability of gas puff Z-pinch adjusting in the prior art.
Description
Technical field
The present invention relates to control fields, in particular to a kind of gas puff Z-pinch method of air-conditioning system, system, device
And air conditioner.
Background technique
Air injection enthalpy-increasing technology makes heat pump obtain higher refrigeration (heat) amount by setting heat exchanger at present, while improving and being
The efficiency of system.The technology is mainly that the operation of compressor is adjusted with jet, once jet (liquid) control is improper, will result in compression
The abrasion of machine, or even damage.Thus jet adjustment control method has extreme influence for the application reliability of the technology.
In the prior art, by often adjusting delivery temperature, but this method by calculating the spouting liquid of hydrojet solenoid valve
At present still without more specific and mature calculation method；Hydrojet control can also be carried out by detecting the multiple parameters of compressor
System, but this method needs parameter more, will definitely increase detection device, increases cost, and the detection of any one parameter is abnormal all
Control can be affected, stability is lower.
For technical problem low to the stability of gas puff Z-pinch adjusting in the prior art, effective solution is not yet proposed at present
Certainly scheme.
Summary of the invention
The embodiment of the invention provides gas puff Z-pinch method, system, device and the air conditioners of a kind of air-conditioning system, at least
Solve technical problem low to the stability of gas puff Z-pinch adjusting in the prior art.
According to an aspect of an embodiment of the present invention, a kind of gas puff Z-pinch method of air-conditioning system is provided, comprising: in real time
Obtain the delivery temperature of compressor and the adjustment parameter of electric expansion valve；According to the delivery temperature of compressor and electric expansion valve
The aperture of adjustment parameter control electric expansion valve.
According to an aspect of an embodiment of the present invention, a kind of gas puff Z-pinch system of air-conditioning system is provided, comprising: acquisition
Device, for obtaining the delivery temperature of compressor and the adjustment parameter of the electric expansion valve in real time；Controller, with the acquisition
Device is connected, swollen for controlling the electronics according to the delivery temperature of the compressor and the adjustment parameter of the electric expansion valve
The aperture of swollen valve.
According to an aspect of an embodiment of the present invention, a kind of air conditioner, including any one of the above air-conditioning system are provided
Gas puff Z-pinch system.
Another aspect according to an embodiment of the present invention, additionally provides a kind of air injection control device of air-conditioning system, comprising: obtain
Modulus block, for obtaining the delivery temperature of compressor and the adjustment parameter of the electric expansion valve in real time；Control module is used for root
The aperture of the electric expansion valve is controlled according to the delivery temperature of the compressor and the adjustment parameter of the electric expansion valve.
In embodiments of the present invention, the delivery temperature of compressor and the adjustment parameter of electric expansion valve are obtained in real time, according to
The aperture of the adjustment parameter control electric expansion valve of the delivery temperature and electric expansion valve of compressor.Above scheme is with compressor
Delivery temperature and adjustment parameter carry out gas puff Z-pinch, and system is adjusted too fast when avoiding being adjusted with individual jet temperature, together
When do not need too many parameter during control and regulation, reduce the abnormal influence for control of detection, can be improved controlling unit
Reliability.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of flow chart of the gas puff Z-pinch method of air-conditioning system according to an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of the gas puff Z-pinch method of optional air-conditioning system according to an embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of the gas puff Z-pinch system of optional air-conditioning system according to an embodiment of the present invention；And
Fig. 4 is a kind of structural schematic diagram of the air injection control device of air-conditioning system according to an embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
Embodiment 1
According to embodiments of the present invention, the embodiment of a kind of gas puff Z-pinch method of air-conditioning system is provided, needs to illustrate
It is that step shown in the flowchart of the accompanying drawings can execute in a computer system such as a set of computer executable instructions,
Also, although logical order is shown in flow charts, and it in some cases, can be to be different from sequence execution herein
Shown or described step.
Fig. 1 is the flow chart of the gas puff Z-pinch method of air-conditioning system according to an embodiment of the present invention, as shown in Figure 1, the party
Method includes the following steps:
Step S102 obtains the delivery temperature of compressor and the adjustment parameter of electric expansion valve in real time.
Specifically, above-mentioned adjustment parameter can be the parameter for compensating and correcting in above-mentioned steps.
Step S104 controls opening for electric expansion valve according to the delivery temperature of compressor and the adjustment parameter of electric expansion valve
Degree.
Specifically, the aperture of above-mentioned electric expansion valve is used to control the jet and/or liquid measure of electric expansion valve.
In an alternative embodiment, due to the delivery temperature that control target is compressor, detection can be passed through
To the delivery temperature of current compressor be compared with preset delivery temperature, it is right in conjunction with the preset range of adjustment parameter
The aperture of electric expansion valve is controlled.
The gas puff Z-pinch method that above-described embodiment proposes obtains the delivery temperature of compressor and the tune of electric expansion valve in real time
Parameter is saved, according to the aperture of the delivery temperature of compressor and the adjustment parameter of electric expansion valve control electric expansion valve.Above-mentioned side
Case carries out gas puff Z-pinch with the delivery temperature of compressor and adjustment parameter, when avoiding using individual jet temperature as adjustment parameter
System adjusting is too fast, and too many parameter is not needed during control and regulation, carries out controlling to adjust hydrojet electricity by less parameter
Sub- expansion valve opening improves the acting ability of system while reducing delivery temperature, reduces the abnormal shadow for control of detection
It rings, can be improved reliability of the air injection enthalpy-increasing technology in controlling unit.
Optionally, according to the above embodiments of the present application, above-mentioned adjustment parameter includes one of any as follows:
The sum of the jet degree of superheat and jet degree of superheat change rate.
The average value of the jet degree of superheat before and after the jet degree of superheat and heat exchanger, wherein the jet degree of superheat is before and after heat exchanger
The temperature difference before temperature and heat exchanger jet after heat exchanger jet.
The jet degree of superheat.
Idea is needed herein, any one above-mentioned adjustment parameter only passes through one or two the parameter energy detected
It accesses, since the detection parameters used are few, avoids due to the abnormal influence to gas puff Z-pinch of detection, to improve
The stability of gas puff Z-pinch, so as to avoid as gas puff Z-pinch it is improper caused by compressor abrasion.
Optionally, according to the above embodiments of the present application, jet degree of superheat change rate can be calculated by following formula,
Wherein, Tg(t) for indicating the current jet degree of superheat, Tg(t-1) for indicating the jet overheat of last moment
Degree, △ t is for indicating the currently time difference with last moment.
Optionally, according to the above embodiments of the present application, joined according to the adjusting of the delivery temperature of compressor and electric expansion valve
The aperture of number control electric expansion valve, comprising:
Step S1041 obtains default delivery temperature threshold value and the corresponding parameter threshold of adjustment parameter.
Specifically, above-mentioned preset delivery temperature threshold value and the corresponding parameter threshold of adjustment parameter are with the reliable of compressor
Property for according to obtained best delivery temperature, the range of best adjustment parameter or best adjustment parameter can be by the life of compressor
Producer is produced to provide, it can also be by testing to obtain repeatedly.
The delivery temperature of compressor is compared step S1043 with default delivery temperature threshold value.
Step S1045 controls electronic expansion in the case where the delivery temperature of compressor is greater than default delivery temperature threshold value
The default step number of aperture increase of valve.
In above-mentioned steps, the aperture for increasing electric expansion valve is used to improve the jet and/or spouting liquid of electric expansion valve,
To reduce the delivery temperature of compressor, the delivery temperature of compressor is made to reach best delivery temperature.
In an alternative embodiment, the case where the delivery temperature for detecting compressor is greater than default delivery temperature
Under, aperture increases two steps, the delivery temperature of compressor is detected again after preset time, if preset exhaust temperature is still greater than
Threshold value is spent, then increases two steps again, until the delivery temperature of the compressor detected is less than or equal to default delivery temperature threshold value.
Step S1047, in the case where the delivery temperature of compressor is less than or equal to default delivery temperature threshold value, according to tune
Save the aperture of the corresponding parameter threshold control electric expansion valve of parameter.
The delivery temperature of compressor is compared above-mentioned steps with default delivery temperature threshold value, in the exhaust temperature of compressor
In the case that degree is greater than default delivery temperature threshold value, the default step number of aperture increase of electric expansion valve is controlled, in the row of compressor
It is swollen according to the corresponding parameter threshold control electronics of adjustment parameter in the case that temperature degree is less than or equal to default delivery temperature threshold value
The aperture of swollen valve.Above-mentioned steps control the aperture of electric expansion valve by the delivery temperature and adjustment parameter of compressor,
To make the jet temperature of compressor be maintained at optimum temperature, and then play a protective role to compressor.
Optionally, according to the above embodiments of the present application, above-mentioned parameter threshold value includes: the first parameter threshold and joins less than first
Second parameter threshold of number threshold value, according to the aperture of the corresponding parameter threshold control electric expansion valve of adjustment parameter, comprising:
Step S1049, in the case where adjustment parameter is greater than the first parameter threshold, the aperture for controlling electric expansion valve increases
Corresponding first step number.
Step S1051, in the case where adjustment parameter is less than the second parameter threshold, the aperture for controlling electric expansion valve reduces
Corresponding second step number.
Step S1053 is between the first parameter threshold and the second parameter threshold, in adjustment parameter equal to the first parameter threshold
Value keeps current aperture equal to electric expansion valve in the case where the second parameter threshold, is controlled.
From the foregoing, it will be observed that above-mentioned steps control electric expansion valve in the case where adjustment parameter is greater than the first parameter threshold
Aperture increases corresponding first step number and controls opening for electric expansion valve in the case where adjustment parameter is less than the second parameter threshold
Degree reduces corresponding second step number, is between the first parameter threshold and the second parameter threshold, in adjustment parameter equal to the first ginseng
Number threshold value keeps current aperture equal to electric expansion valve in the case where the second parameter threshold, is controlled.Above scheme passes through tune
The comparison for saving parameter and parameter threshold, by adjustment parameter control in the range of the first parameter threshold and the second parameter threshold.
Optionally, it according to current exhaust gas temperature and is preset according to the above embodiments of the present application, the first step number and second step number
Delivery temperature threshold value determines.
In an alternative embodiment, the first step number and the second step number can be with current exhaust gas temperatures and default exhaust temperature
Spend the absolute value direct proportionality of the difference of threshold value.
Optionally, according to the above embodiments of the present application, obtain the delivery temperature of compressor in real time and adjustment parameter include: by
The delivery temperature and adjustment parameter of compressor are obtained according to predetermined period.
Predetermined period is arranged to obtain the delivery temperature and adjustment parameter of compressor, so that the exhaust of compressor in above-mentioned steps
Temperature continually and steadily can be in optimum state.
Fig. 2 be according to a kind of flow chart of the jet method of optional air-conditioning system of the embodiment of the present application, below with reference to
Shown in Fig. 2, a kind of jet method of optional air-conditioning system is described.
S21, delivery temperature are greater than t1.
In above-mentioned steps, above-mentioned t1 is default delivery temperature threshold value.If delivery temperature is greater than t1, enter step
Otherwise S22 enters step S23.
S22, mainboard control spray enthalpy electric expansion valve open big fixed step number every time.
In the case where delivery temperature is greater than default delivery temperature threshold value, the mainboard control electric expansion valve of air-conditioning system is opened
Big fixed step number.
S23, adjustment parameter are greater than a.
In above-mentioned steps, above-mentioned a is the first parameter threshold, in the case where adjustment parameter is greater than a, enters step S24,
Otherwise S25 is entered step.
S24, mainboard control spray enthalpy electric expansion valve open the asynchronous number of big respective differences.
In the case where adjustment parameter is greater than a, the step number of big electric expansion valve is opened, opening big step number can be according to current pressure
The difference of the jet temperature of contracting machine and default jet temperature threshold value determines.
S25, adjustment parameter are less than b.
In above-mentioned steps, above-mentioned b is the second parameter threshold, in the case where adjustment parameter is less than b, enters step S26,
Otherwise S27 is entered step.
S26, mainboard control spray enthalpy electric expansion valve turn down the asynchronous number of respective differences.
In the case where adjustment parameter is less than b, the step number of electric expansion valve is turned down, the step number turned down can be according to current pressure
The difference of the jet temperature of contracting machine and default jet temperature threshold value determines.
S27, mainboard control spray enthalpy electric expansion valve maintain existing step number constant.
In the case where adjustment parameter is between a and b, determines that the jet of compressor is in optimum state, then control electricity
Sub- expansion valve keeps current step number operation.
Embodiment 2
According to embodiments of the present invention, a kind of embodiment of the air injection control device of air-conditioning system is provided, Fig. 3 is according to this
The structural schematic diagram of the gas puff Z-pinch system of the air-conditioning system of inventive embodiments, as shown in figure 3, the system includes:
Acquisition device 30, for obtaining the delivery temperature of compressor and the adjustment parameter of electric expansion valve in real time.
Controller 32, is connected with acquisition device, for being joined according to the delivery temperature of compressor and the adjusting of electric expansion valve
The aperture of number control electric expansion valve.
In an alternative embodiment, due to the delivery temperature that control target is compressor, detection can be passed through
To the delivery temperature of current compressor be compared with preset delivery temperature, it is right in conjunction with the preset range of adjustment parameter
The aperture of electric expansion valve is controlled.
The gas puff Z-pinch method that above-described embodiment proposes obtains the delivery temperature of compressor and the tune of electric expansion valve in real time
Parameter is saved, according to the aperture of the delivery temperature of compressor and the adjustment parameter of electric expansion valve control electric expansion valve.Above-mentioned side
Case carries out gas puff Z-pinch with the delivery temperature of compressor and adjustment parameter, when avoiding using individual jet temperature as adjustment parameter
System adjusting is too fast, and too many parameter is not needed during control and regulation, carries out controlling to adjust hydrojet electricity by less parameter
Sub- expansion valve opening improves the acting ability of system while reducing delivery temperature, reduces the abnormal shadow for control of detection
It rings, can be improved reliability of the air injection enthalpy-increasing technology in controlling unit.
Optionally, according to the above embodiments of the present application, above-mentioned adjustment parameter includes one of any as follows:
The sum of the jet degree of superheat and jet degree of superheat change rate.
The average value of the jet degree of superheat before and after the jet degree of superheat and heat exchanger, wherein the jet degree of superheat is before and after heat exchanger
The temperature difference before temperature and heat exchanger jet after heat exchanger jet.
The jet degree of superheat.
Idea is needed herein, any one above-mentioned adjustment parameter only passes through one or two the parameter energy detected
It accesses, since the detection parameters used are few, avoids due to the abnormal influence to gas puff Z-pinch of detection, to improve
The stability of gas puff Z-pinch, so as to avoid as gas puff Z-pinch it is improper caused by compressor abrasion.
Optionally, according to the above embodiments of the present application, above controller is also used to:
Obtain default delivery temperature threshold value and the corresponding parameter threshold of adjustment parameter.
Specifically, above-mentioned preset delivery temperature threshold value and the corresponding parameter threshold of adjustment parameter are with the reliable of compressor
Property for according to obtained best delivery temperature, the range of best adjustment parameter or best adjustment parameter can be by the life of compressor
Producer is produced to provide, it can also be by testing to obtain repeatedly.
The delivery temperature of compressor is compared with default delivery temperature threshold value.
In the case where the delivery temperature of compressor is greater than default delivery temperature threshold value, the aperture for controlling electric expansion valve increases
Step number default greatly.
In above system, the aperture for increasing electric expansion valve is used to improve the jet and/or spouting liquid of electric expansion valve,
To reduce the delivery temperature of compressor, the delivery temperature of compressor is made to reach best delivery temperature.
In an alternative embodiment, the case where the delivery temperature for detecting compressor is greater than default delivery temperature
Under, increase two degrees aperture, detect the delivery temperature of compressor again after preset time, if preset exhaust temperature is still greater than
Threshold value is spent, then increases two steps again, until the delivery temperature of the compressor detected is less than or equal to default delivery temperature threshold value.
It is corresponding according to adjustment parameter in the case where the delivery temperature of compressor is less than or equal to default delivery temperature threshold value
Parameter threshold control electric expansion valve aperture.
The delivery temperature of compressor is compared above system with default delivery temperature threshold value, in the exhaust temperature of compressor
In the case that degree is greater than default delivery temperature threshold value, the default step number of aperture increase of electric expansion valve is controlled, in the row of compressor
It is swollen according to the corresponding parameter threshold control electronics of adjustment parameter in the case that temperature degree is less than or equal to default delivery temperature threshold value
The aperture of swollen valve.Above-mentioned steps control the aperture of electric expansion valve by the delivery temperature and adjustment parameter of compressor,
To make the jet temperature of compressor be maintained at optimum temperature, and then play a protective role to compressor.
Optionally, according to the above embodiments of the present application, above-mentioned parameter threshold value includes: the first parameter threshold and joins less than first
Second parameter threshold of number threshold value, controller are also used to:
In the case where adjustment parameter is greater than the first parameter threshold, the aperture for controlling electric expansion valve increases corresponding first
Step number.
In the case where adjustment parameter is less than the second parameter threshold, the aperture for controlling electric expansion valve reduces corresponding second
Step number.
The is between the first parameter threshold and the second parameter threshold, is equal to the first parameter threshold or is equal in adjustment parameter
In the case where two parameter thresholds, control electric expansion valve keeps current aperture.
From the foregoing, it will be observed that above system controls electric expansion valve in the case where adjustment parameter is greater than the first parameter threshold
Aperture increases corresponding first step number and controls opening for electric expansion valve in the case where adjustment parameter is less than the second parameter threshold
Degree reduces corresponding second step number, is between the first parameter threshold and the second parameter threshold, in adjustment parameter equal to the first ginseng
Number threshold value keeps current aperture equal to electric expansion valve in the case where the second parameter threshold, is controlled.Above scheme passes through tune
The comparison for saving parameter and parameter threshold, by adjustment parameter control in the range of the first parameter threshold and the second parameter threshold.
Embodiment 3
According to embodiments of the present invention, a kind of air conditioner is provided, which includes any one air-conditioning in embodiment 2
The gas puff Z-pinch system of system.
In an alternative embodiment, due to the delivery temperature that control target is compressor, air conditioner can pass through inspection
The delivery temperature of the current compressor measured is compared with preset delivery temperature, in conjunction with the preset range of adjustment parameter,
The aperture of electric expansion valve is controlled.
The air conditioner that above-described embodiment proposes obtains the delivery temperature of compressor and the adjusting ginseng of electric expansion valve in real time
Number, according to the aperture of the delivery temperature of compressor and the adjustment parameter of electric expansion valve control electric expansion valve.Above scheme with
The delivery temperature and adjustment parameter of compressor carry out gas puff Z-pinch, and too many parameter is not needed during control and regulation, avoid with
System is adjusted too fast when individual jet temperature, caused by jet and/or hydrojet control the improper compressor abrasion for making air conditioner
Or even damage, while less parameter carries out controlling to adjust hydrojet electronic expansion valve opening, and it is abnormal for control to reduce detection
It influences, can be improved the reliability of controlling unit.
Embodiment 4
According to embodiments of the present invention, a kind of embodiment of the air injection control device of air-conditioning system is provided, Fig. 4 is according to this
The structural schematic diagram of the air injection control device of a kind of air-conditioning system of inventive embodiments, as shown in figure 4, the device includes:
Module 40 is obtained, for obtaining the delivery temperature of compressor and the adjustment parameter of electric expansion valve in real time.
Control module 42, for controlling electronic expansion according to the delivery temperature of compressor and the adjustment parameter of electric expansion valve
The aperture of valve.
Optionally, according to the above embodiments of the present application, adjustment parameter includes one of any as follows:
The sum of the jet degree of superheat and jet degree of superheat change rate；
The average value of the jet degree of superheat before and after the jet degree of superheat and heat exchanger, wherein the jet degree of superheat is before and after heat exchanger
The temperature difference before temperature and heat exchanger jet after heat exchanger jet；
The jet degree of superheat.
Optionally, according to the above embodiments of the present application, above-mentioned apparatus further include:
Computing module, for calculating jet degree of superheat change rate by following formula,
Wherein, Tg(t) for indicating the current jet degree of superheat, Tg(t-1) for indicating the jet overheat of last moment
Degree, △ t is for indicating the currently time difference with last moment.
Optionally, according to the above embodiments of the present application, above-mentioned control module includes:
First acquisition submodule, for obtaining default delivery temperature threshold value and the corresponding parameter threshold of adjustment parameter；
Submodule is compared, for the delivery temperature of compressor to be compared with default delivery temperature threshold value；
Control submodule, in the case where the delivery temperature of compressor is greater than default delivery temperature threshold value, control to be electric
The default step number of aperture increase of sub- expansion valve；
It is corresponding according to adjustment parameter in the case where the delivery temperature of compressor is less than or equal to default delivery temperature threshold value
Parameter threshold control electric expansion valve aperture.
Optionally, according to the above embodiments of the present application, above-mentioned parameter threshold value includes: the first parameter threshold and joins less than first
Second parameter threshold of number threshold value, control submodule include:
First control unit, for controlling electric expansion valve in the case where adjustment parameter is greater than the first parameter threshold
Aperture increases corresponding first step number；
Second control unit, for controlling electric expansion valve in the case where adjustment parameter is less than the second parameter threshold
Aperture reduces corresponding second step number；
Third control unit, for being between the first parameter threshold and the second parameter threshold in adjustment parameter, being equal to the
One parameter threshold keeps current aperture equal to electric expansion valve in the case where the second parameter threshold, is controlled.
Optionally, according to the above embodiments of the present application, above-mentioned first step number and second step number according to current exhaust gas temperature and
Default delivery temperature threshold value determines.
Optionally, according to the above embodiments of the present application, above-mentioned acquisition module includes:
Second acquisition submodule, for obtaining the delivery temperature and adjustment parameter of compressor according to predetermined period.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, Ke Yiwei
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of unit or module
It connects, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can for personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes: that USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic or disk etc. be various to can store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (16)
1. a kind of gas puff Z-pinch method of air-conditioning system characterized by comprising
In real time obtain compressor delivery temperature and electric expansion valve adjustment parameter, wherein the adjustment parameter be for into
The parameter of row compensating approach；
Opening for the electric expansion valve is controlled according to the adjustment parameter of the delivery temperature of the compressor and the electric expansion valve
Degree；It is compared by the delivery temperature of the current compressor detected with preset delivery temperature, in conjunction with adjustment parameter
Preset range controls the aperture of electric expansion valve；
The adjustment parameter includes one of any as follows:
The sum of the jet degree of superheat and jet degree of superheat change rate；
The average value of the jet degree of superheat before and after the jet degree of superheat and heat exchanger, wherein the jet degree of superheat is before and after the heat exchanger
The temperature difference before temperature and the heat exchanger jet after the heat exchanger jet.
2. the method according to claim 1, wherein
The jet degree of superheat change rate is calculated by following formula,
Wherein, the Tg(t) for indicating the current jet degree of superheat, the Tg(t-1) for indicating the jet mistake of last moment
Temperature, the Δ t is for indicating the current and last moment time difference.
3. method according to claim 1 or 2, which is characterized in that according to the delivery temperature of the compressor and the electricity
The adjustment parameter of sub- expansion valve controls the aperture of the electric expansion valve, comprising:
Obtain default delivery temperature threshold value and the corresponding parameter threshold of the adjustment parameter；
The delivery temperature of the compressor is compared with default delivery temperature threshold value；
In the case where the delivery temperature of the compressor is greater than the default delivery temperature threshold value, the electric expansion valve is controlled
The default step number of aperture increase；
In the case where the delivery temperature of the compressor is less than or equal to the default delivery temperature threshold value, according to the adjusting
The corresponding parameter threshold of parameter controls the aperture of the electric expansion valve.
4. according to the method described in claim 3, it is characterized in that, the parameter threshold includes: the first parameter threshold and is less than
Second parameter threshold of first parameter threshold controls the electronic expansion according to the corresponding parameter threshold of the adjustment parameter
The aperture of valve, comprising:
In the case where the adjustment parameter is greater than first parameter threshold, the aperture for controlling the electric expansion valve increases phase
The first step number answered；
In the case where the adjustment parameter is less than second parameter threshold, the aperture for controlling the electric expansion valve reduces phase
The second step number answered；
It is between first parameter threshold and second parameter threshold, in the adjustment parameter equal to first parameter
Threshold value or be equal to second parameter threshold in the case where, control the aperture that the electric expansion valve keeps current.
5. according to the method described in claim 4, it is characterized in that, first step number and the second step number are according to current institute
It states delivery temperature and the default delivery temperature threshold value determines.
6. the method according to claim 1, wherein obtaining the delivery temperature and adjustment parameter packet of compressor in real time
It includes: obtaining the delivery temperature and the adjustment parameter of the compressor according to predetermined period.
7. a kind of gas puff Z-pinch system of air-conditioning system characterized by comprising
Acquisition device, for obtaining the delivery temperature of compressor and the adjustment parameter of electric expansion valve in real time, wherein the adjusting
Parameter is the parameter for compensating and correcting；
Controller is connected with the acquisition device, for according to the delivery temperature of the compressor and the electric expansion valve
Adjustment parameter controls the aperture of the electric expansion valve；Delivery temperature and preset exhaust by the current compressor detected
Temperature is compared, and in conjunction with the preset range of adjustment parameter, controls the aperture of electric expansion valve；
The adjustment parameter includes one of any as follows:
The sum of the jet degree of superheat and jet degree of superheat change rate；
The average value of the jet degree of superheat before and after the jet degree of superheat and heat exchanger, wherein the jet degree of superheat is before and after the heat exchanger
The temperature difference before temperature and the heat exchanger jet after the heat exchanger jet.
8. system according to claim 7, which is characterized in that the controller is also used to:
Obtain default delivery temperature threshold value and the corresponding parameter threshold of the adjustment parameter；
The delivery temperature of the compressor is compared with default delivery temperature threshold value；
In the case where the delivery temperature of the compressor is greater than the default delivery temperature threshold value, the electric expansion valve is controlled
The default step number of aperture increase；
In the case where the delivery temperature of the compressor is less than or equal to the default delivery temperature threshold value, according to the adjusting
The corresponding parameter threshold of parameter controls the aperture of the electric expansion valve.
9. system according to claim 8, which is characterized in that the parameter threshold includes: the first parameter threshold and is less than
Second parameter threshold of first parameter threshold, the controller are also used to:
In the case where the adjustment parameter is greater than first parameter threshold, the aperture for controlling the electric expansion valve increases phase
The first step number answered；
In the case where the adjustment parameter is less than second parameter threshold, the aperture for controlling the electric expansion valve reduces phase
The second step number answered；
It is between first parameter threshold and second parameter threshold, in the adjustment parameter equal to first parameter
Threshold value or be equal to second parameter threshold in the case where, control the aperture that the electric expansion valve keeps current.
10. a kind of air conditioner, which is characterized in that the gas puff Z-pinch system including any one air-conditioning system in claim 7 to 9
System.
11. a kind of air injection control device of air-conditioning system characterized by comprising
Module is obtained, for obtaining the delivery temperature of compressor and the adjustment parameter of electric expansion valve in real time, wherein the adjusting
Parameter is the parameter for compensating and correcting；
Control module, for controlling the electricity according to the delivery temperature of the compressor and the adjustment parameter of the electric expansion valve
The aperture of sub- expansion valve；It is compared, then tied with preset delivery temperature by the delivery temperature of the current compressor detected
The preset range for closing adjustment parameter, controls the aperture of electric expansion valve；
The adjustment parameter includes one of any as follows:
The sum of the jet degree of superheat and jet degree of superheat change rate；
The average value of the jet degree of superheat before and after the jet degree of superheat and heat exchanger, wherein the jet degree of superheat is before and after the heat exchanger
The temperature difference before temperature and the heat exchanger jet after the heat exchanger jet.
12. device according to claim 11, which is characterized in that described device further include:
Computing module, for calculating the jet degree of superheat change rate by following formula,
Wherein, the Tg(t) for indicating the current jet degree of superheat, the Tg(t-1) for indicating the jet mistake of last moment
Temperature, the Δ t is for indicating the current and last moment time difference.
13. device according to claim 11 or 12, which is characterized in that the control module includes:
First acquisition submodule, for obtaining default delivery temperature threshold value and the corresponding parameter threshold of the adjustment parameter；
Submodule is compared, for the delivery temperature of the compressor to be compared with default delivery temperature threshold value；
Control submodule, for controlling in the case where the delivery temperature of the compressor is greater than the default delivery temperature threshold value
Make the default step number of aperture increase of the electric expansion valve；
In the case where the delivery temperature of the compressor is less than or equal to the default delivery temperature threshold value, according to the adjusting
The corresponding parameter threshold of parameter controls the aperture of the electric expansion valve.
14. device according to claim 13, which is characterized in that the parameter threshold includes: the first parameter threshold and small
In the second parameter threshold of first parameter threshold, the control submodule includes:
First control unit, for controlling the electronics in the case where the adjustment parameter is greater than first parameter threshold
The aperture of expansion valve increases corresponding first step number；
Second control unit, for controlling the electronics in the case where the adjustment parameter is less than second parameter threshold
The aperture of expansion valve reduces corresponding second step number；
Third control unit, for the adjustment parameter be in first parameter threshold and second parameter threshold it
Between, be equal to first parameter threshold or be equal to second parameter threshold in the case where, control the electric expansion valve and keep
Current aperture.
15. device according to claim 14, which is characterized in that first step number and the second step number are according to current
The delivery temperature and the default delivery temperature threshold value determine.
16. device according to claim 11, which is characterized in that the acquisition module includes:
Second acquisition submodule, for obtaining the delivery temperature and the adjustment parameter of the compressor according to predetermined period.
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| CN108168171A (en) * | 2017-12-19 | 2018-06-15 | 深圳市深蓝电子股份有限公司 | A kind of hot pump in low temp increasing enthalpy EEV control method and device based on discharge superheat |
| CN108954652B (en) * | 2018-06-21 | 2021-08-10 | 青岛海尔空调电子有限公司 | Electronic expansion valve control method and control device, air conditioner and computer readable storage medium |
| CN109506328B (en) * | 2019-01-22 | 2021-03-19 | 广东美的制冷设备有限公司 | Control method of air conditioner electronic expansion valve and air conditioner |
| CN110595020B (en) * | 2019-09-23 | 2020-11-20 | 珠海格力电器股份有限公司 | Air supplement control method and device for air conditioning system and computer readable storage medium |
| CN110701841B (en) * | 2019-11-15 | 2021-10-01 | 上海辛格林纳新时达电机有限公司 | Control method of variable-frequency air source heat pump |
| CN110986253B (en) * | 2019-11-15 | 2022-04-29 | 珠海格力电器股份有限公司 | Electronic expansion valve control method, compressor control system and air conditioner |
| CN112197438B (en) * | 2020-09-25 | 2022-06-24 | 堃霖冷冻机械(上海)有限公司 | Method for controlling intermediate injection amount of low-ring-temperature heat pump water heater |
| CN112460831B (en) * | 2020-11-16 | 2022-02-11 | 浙江中广电器股份有限公司 | Exhaust temperature control method, controller and air energy heat pump unit |
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Effective date of registration: 20230713 Address after: 410000 No. 168, Yongjia Road, Ningxiang Economic and Technological Development Zone, Changsha City, Hunan Province Patentee after: CHANGSHA GREE HVAC EQUIPMENT Co.,Ltd. Patentee after: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI Address before: 519070 No. six Jinji Road West, Zhuhai, Guangdong Patentee before: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI |