CN107975916A - air conditioning system control method, device and system - Google Patents
air conditioning system control method, device and system Download PDFInfo
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- CN107975916A CN107975916A CN201711118122.0A CN201711118122A CN107975916A CN 107975916 A CN107975916 A CN 107975916A CN 201711118122 A CN201711118122 A CN 201711118122A CN 107975916 A CN107975916 A CN 107975916A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000001816 cooling Methods 0.000 claims abstract description 186
- 239000003507 refrigerant Substances 0.000 claims abstract description 72
- 238000005057 refrigeration Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000001035 drying Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The present disclosure is directed to an air conditioning system control method, apparatus, and system, so as to at least solve the problem of instability of an air conditioning system caused by one outdoor unit providing cooling to two independent cooling areas in the related art. The air conditioning system in the present disclosure includes a main cooling supply path and at least two cooling branch paths, and the air conditioning system control method includes: acquiring a first superheat degree of a main cooling supply path and a second superheat degree of at least two cooling branch paths; the refrigerant flow of the at least two cooling branch circuits is adjusted according to the second superheat degree, and/or the refrigerant flow of the main cooling branch circuit is adjusted according to the first superheat degree.
Description
Technical field
The present invention relates to air-conditioning system technical field, in particular to a kind of air conditioner system control method, device and is
System.
Background technology
At present, it is typically that each freezer is individually controlled to control the control mode of two kinds of storehouse temperature using an outer machine, i.e., every
A freezer uses independent control, and the schematic diagram of its system is usually as shown in Figure 1.After compressor air-discharging is condensed by condenser,
It is divided into independent cooling branch to be controlled storehouse temperature, after so causing cooling branch temperature to reach requirement, cooling main road
Relevant parameter then can not necessarily reach requirement and not reach requirement, can so cause air-conditioning system fluctuation of service, easily to compression
Machine causes to damage.
The content of the invention
The present invention provides a kind of air conditioner system control method, apparatus and system, at least to solve in correlation technique one
Outer machine for two independent cooling district coolings in the case of caused air-conditioning system it is unstable the problem of.
According to an aspect of the invention, there is provided a kind of air conditioner system control method, the air-conditioning system includes cooling
Main road, at least two-way cooling branch, the described method includes：Obtain first degree of superheat of the cooling main road, at least two-way
Second degree of superheat of cooling branch；The refrigerant flow of at least two-way cooling branch according to being adjusted second degree of superheat,
And/or the refrigerant flow of the cooling main road is adjusted according to first degree of superheat.
Alternatively, the refrigerant flow of at least two-way cooling branch according to being adjusted second degree of superheat, and/
Or the refrigerant flow of the cooling main road is adjusted according to first degree of superheat, including：In first degree of superheat and first
In the case that the difference of preset value is not more than the second preset value, according to second degree of superheat and the size of first preset value
Relation adjust described at least two-way cooling branch refrigerant flow.
Alternatively, the refrigerant flow of at least two-way cooling branch according to being adjusted second degree of superheat, and/
Or the refrigerant flow of the cooling main road is adjusted according to first degree of superheat, including：It is less than the in first degree of superheat
In the case of one preset value, the refrigerant flow of the cooling main road is turned down；According to second degree of superheat and described first
The magnitude relationship of preset value adjust described at least two-way cooling branch refrigerant flow.
Alternatively, the refrigerant flow of at least two-way cooling branch according to being adjusted second degree of superheat, and/
Or the refrigerant flow of the cooling main road is adjusted according to first degree of superheat, including：It is more than the in first degree of superheat
In the case of one preset value, the refrigerant flow of the cooling main road is tuned up；According to second degree of superheat and described first
The magnitude relationship of preset value adjust described at least two-way cooling branch refrigerant flow.
Alternatively, it is described at least two according to being adjusted second degree of superheat and the magnitude relationship of first preset value
The refrigerant flow of road cooling branch, including：When second degree of superheat is less than first preset value, at least two by described in
The refrigerant flow of road cooling branch is turned down, when second degree of superheat is more than first preset value, at least two by described in
The refrigerant flow increase of road cooling branch.
Alternatively, the method further includes：Tune up or turn down by the refrigerant flow of at least two-way cooling branch
Afterwards, the refrigerant flow of the cooling main road is adjusted, so that first degree of superheat and at least two-way cooling branch
Second degree of superheat tend to first preset value.
Alternatively, a pipeline is provided between the cooling main road and the compressor of the air-conditioning system, on the pipeline
Expansion valve and solenoid valve are provided with, the method further includes：It is more than the 3rd preset value in the temperature for detecting the compressor
In the case of, control the solenoid valve to open；According to the flow of expansion valve described in the temperature adjustment of the compressor, to reduce
State the temperature of compressor.
According to the second aspect of the invention, there is provided a kind of air-conditioning system control device, the air-conditioning system include supplying
Cold main road, at least two-way cooling branch, described device include：Acquisition module, for obtaining the first overheat of the cooling main road
Degree, second degree of superheat of at least two-way cooling branch；Adjustment module, for according to second degree of superheat adjust described in
The refrigerant flow of few two-way cooling branch, and/or the refrigerant stream according to first degree of superheat adjusting cooling main road
Amount.
According to the third aspect of the present invention, there is provided a kind of air-conditioning system, including：Cooling main road, the first cooling branch
And the second cooling branch, it is provided with the first solenoid valve and the first expansion valve between the cooling main road and cooling branch.
Alternatively, a pipeline is provided between the cooling main road and the compressor of the air-conditioning system, on the pipeline
It is provided with the second expansion valve and second solenoid valve.
Scheme provided by the embodiments of the present application, according to the degree of superheat of the cooling main road in the system detected and at least two
The degree of superheat of road cooling branch and the magnitude relationship of preset value, adjust the refrigerant flow of cooling main road and/or cooling branch, from
And can ensure that each cooling branch and cooling main road are satisfied by the default degree of superheat, improve the stability of air-conditioning system.
Brief description of the drawings
Fig. 1 is the schematic diagram of air-conditioning system in correlation technique；
Fig. 2 is the flow chart of the air conditioner system control method of the embodiment of the present application 1；
Fig. 3 is the block diagram of the air-conditioning system control device of the present embodiment 1；
Fig. 4 is the schematic diagram of the air-conditioner control system of the present embodiment 2.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar key element.Following exemplary embodiment
Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects being described in detail in claims, of the invention.
Embodiment 1
A kind of air conditioner system control method is present embodiments provided, this method is used to be controlled air-conditioning system, wherein,
Air-conditioning system includes cooling main road, at least two-way cooling branch, and Fig. 2 is the flow chart of this method, as shown in Fig. 2, this method bag
Include following processing：
Step 201：Second degree of superheat of first degree of superheat of acquisition cooling main road, at least two-way cooling branch；
Wherein, in step 201, it can be first degree of superheat of first acquisition cooling main road, treat based on the degree of superheat to supplying
After the refrigerant flow of cold main road is adjusted, then second degree of superheat of at least two-way cooling branch is obtained, can also be and obtaining
Second degree of superheat of at least two-way cooling branch is obtained while taking first degree of superheat of cooling main road, in the present embodiment, is supplied
First degree of superheat of cold main road subtracts evaporating temperature by the current suction temperature of cooling main road and obtains, wherein, the temperature of cooling main road
Degree can be by being detected in cooling main road set temperature detector, and evaporating temperature can use empirical value, similarly, at least
The degree of superheat of two-way cooling main road can equally be tried to achieve using the principle.
Involved in the present embodiment to first degree of superheat and second degree of superheat be suction superheat.
Step 202：The refrigerant flow of at least two-way cooling branch is adjusted according to second degree of superheat, and/or according to first
The degree of superheat adjusts the refrigerant flow of cooling main road.
Wherein, can be by controlling the expansion that be arranged on cooling main road to the adjusting for refrigerant flow of cooling main road
Valve, and solenoid valve are realized.
Individually below from first degree of superheat is approximately equal to the first preset value, first degree of superheat is less than the first preset value and first
The degree of superheat is more than in the case of three kinds of the first preset value, to the tune of the refrigerant flow of cooling main road and at least two cooling branches
Section operation illustrates.Wherein, the first preset value is the setting value of the suction superheat of cooling main road, can be with when presetting the value
The value is set according to the classification of different compressors, varying environment temperature and refrigerated area, in the present embodiment, should
Value could be provided as 7 degrees Celsius.
In the case where first degree of superheat and the difference of the first preset value are not more than the second preset value, according to second degree of superheat
Adjust at least refrigerant flow of two-way cooling branch and/or the refrigerant flow of cooling main road is adjusted according to first degree of superheat
Operation can include：The refrigerant of at least two-way cooling branch is adjusted according to second degree of superheat and the magnitude relationship of the first preset value
Flow, wherein, the second preset value is the numerical value of a very little, and first degree of superheat and the difference of the first preset value are pre- no more than second
If value then represents that first degree of superheat is approximately equal to the first preset value.In that case, the refrigeration of cooling main road need not be adjusted for the time being
Device flow.
In the case where first degree of superheat is less than the first preset value, at least two-way cooling branch is adjusted according to second degree of superheat
Refrigerant flow, and/or according to first degree of superheat adjust cooling main road refrigerant flow operation, can include：Will be for
The refrigerant flow of cold main road is turned down；At least two-way cooling branch is adjusted according to second degree of superheat and the magnitude relationship of the first preset value
The refrigerant flow on road.
In the case where first degree of superheat is more than the first preset value, at least two-way cooling branch is adjusted according to second degree of superheat
Refrigerant flow, and/or according to first degree of superheat adjust cooling main road refrigerant flow operation, including：By cooling master
The refrigerant flow on road tunes up；According to second degree of superheat and the magnitude relationship adjusting at least two-way cooling branch of the first preset value
Refrigerant flow.
Alternatively, in the present embodiment, at least two-way is adjusted according to second degree of superheat and the magnitude relationship of the first preset value
The operation of the refrigerant flow of cooling branch can include：When second degree of superheat is less than the first preset value, will at least two-way supply
The refrigerant flow of cold branch is turned down, when second degree of superheat is more than the first preset value, by the refrigeration of at least two-way cooling branch
Agent flux increases.
In the present embodiment, after the refrigerator flow of at least two-way cooling branch is adjusted respectively, in order to ensure cooling
The degree of superheat of main road meets the requirements, and method provided in this embodiment can also include：By the refrigeration of at least two-way cooling branch
After agent flux is tuned up or turned down, the refrigerant flow of cooling main road is adjusted, so that first degree of superheat and at least two-way cooling
Second degree of superheat of branch.
Alternatively, a pipeline is provided between the cooling main road of the present embodiment and the compressor of air-conditioning system, on the pipeline
Expansion valve and solenoid valve are provided with, based on this, method provided in this embodiment can also include：Detecting the temperature of compressor
In the case that degree is more than the 3rd preset value, control solenoid valve is opened；According to the flow of the temperature adjustment expansion valve of compressor, with drop
The temperature of low compressor, wherein, the 3rd preset value is a higher temperature, such as higher than 130 degree, in that case, is led to
Cross to cooling compressor, can play a protective role to compressor.
Below in conjunction with Fig. 3 by an example to using air conditioning control method provided by the embodiments of the present application into air-conditioning system
The process being controlled of uniting illustrates.
Fig. 3 is according to the schematic diagram of the exemplary air-conditioning system of the embodiment of the present application one, as shown in figure 3, the air-conditioning system
Including cooling main road 30, the first cooling branch 301, the second cooling branch 302, compressor 31, air-cooled condenser 32, reservoir
33rd, device for drying and filtering 34, wherein, hydrojet solenoid valve 35 and electric expansion valve 36, the first cooling branch are provided with cooling main road
Electric expansion valve 37 is provided with road 301, is additionally provided with hydrojet solenoid valve, its end connects the first cooling region, the second cooling
Electric expansion valve 38 is provided with branch 302, is additionally provided with hydrojet solenoid valve, its end connects the second cooling region.In addition, for
A pipeline is additionally provided between cold main road 30 and compressor 31, hydrojet solenoid valve 39 and electric expansion valve are provided with the pipeline
310, in addition, there is check valve etc. in the Fig. 3.
In this example embodiment, air conditioner unit is arranged at cooling main road and cooling branch temperature monitor when being run
(being temporarily not shown in Fig. 3) synchronization detection temperature value, detects △ T, △ T1 and △ T2, determines △ T, △ T1 and △ T2 respectively
With △ TSetting value、△T1Setting value、△T2Setting valueRelativeness, cooling master is arranged to control respectively according to the relativeness determined
The electric expansion valve of road and cooling branch is adjusted, and according to the temperature value detected, is divided into following several situations.
1. work as and detect Δ T ≈ △ TSetting valueWhen, it is synchronous to detect △ T1, △ T2 and △ T1Setting value、△T2Setting valueRelativeness：
In △ T1 ＜ △ T1Setting value, and △ T2 ＜ △ T2Setting valueWhen, reduce electric expansion valve 37 according to logic and electronics is swollen
The aperture of swollen valve 38, is adjusted in synchronism the electric expansion valve 36 of cooling main road, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting valueAnd △
T2≈△T2Setting value；
In △ T1 ＜ △ T1Setting value, and △ T2 ＞ △ T2Setting valueWhen, foundation logic reduces the aperture of electric expansion valve 37, together
The aperture of step increase electric expansion valve 38, is adjusted in synchronism main road electric expansion valve 36, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting value
With △ T2 ≈ △ T2Setting value；
In △ T1 ＞ △ T1Setting valueWith △ T2 ＜ △ T2Setting valueWhen, according to the aperture of logic increase electric expansion valve 37, reduce
The aperture of electric expansion valve 38, is adjusted in synchronism the electric expansion valve 36 of cooling main road, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting value
With △ T2 ≈ △ T2Setting value；
In △ T1 ＞ △ T1Setting valueWith △ T2 ＞ △ T2Setting valueWhen, the aperture of foundation logic increase electric expansion valve 37 and 38,
The electric expansion valve of cooling main road is adjusted in synchronism, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting valueWith △ T2 ≈ △ T2Setting value；
2. work as and detect Δ T ＜ △ TSetting valueWhen, main road electric expansion valve 36 is adjusted first according to logic, reduces main road electronics
The aperture of expansion valve 36, it is synchronous to detect △ T1, △ T2 and △ T1Setting value、△T2Setting valueRelativeness：
In △ T1 ＜ △ T1Setting valueAnd △ T2 ＜ △ T2Setting valueWhen, reduce opening for electric expansion valve 37 and 38 according to logic
Degree, is adjusted in synchronism the electric expansion valve of cooling main road, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting valueWith △ T2 ≈ △ T2Setting value；
In △ T1 ＜ △ T1Setting valueWith △ T2 ＞ △ T2Setting valueWhen, reduce the aperture of electric expansion valve 37 according to logic, it is synchronous
Increase the aperture of electric expansion valve 38, be adjusted in synchronism the electric expansion valve of cooling main road, make Δ T ≈ △ TSetting value、△T1≈△
T1Setting valueWith △ T2 ≈ △ T2Setting value；
In △ T1 ＞ △ T1Setting valueWith △ T2 ＜ △ T2Setting valueWhen, according to the aperture of logic increase electric expansion valve 37, reduce
The aperture of electric expansion valve 38, is adjusted in synchronism the electric expansion valve of cooling main road, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting valueWith
△T2≈△T2Setting value；
In △ T1 ＞ △ T1Setting valueWith △ T2 ＞ △ T2Setting valueWhen, the aperture of foundation logic increase electric expansion valve 37 and 38,
The electric expansion valve of cooling main road is adjusted in synchronism, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting valueWith △ T2 ≈ △ T2Setting value；
3. work as and detect Δ T ＞ △ TSetting valueWhen, adjust the electric expansion valve of cooling main road first according to logic, increase cooling
The aperture of the electric expansion valve 36 of main road, it is synchronous to detect △ T1, △ T2 and △ T1Setting value, △ T2 setting values relativeness：
In △ T1 ＜ △ T1Setting valueWith △ T2 ＜ △ T2Setting valueWhen, foundation logic reduces the aperture of electric expansion valve 37 and 38,
The electric expansion valve 36 of cooling main road is adjusted in synchronism, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting valueWith △ T2 ≈ △ T2Setting value；
In △ T1 ＜ △ T1Setting valueWith △ T2 ＞ △ T2Setting valueWhen, reduce the aperture of electric expansion valve 37 according to logic, it is synchronous
Increase the aperture of electric expansion valve 38, be adjusted in synchronism main road electric expansion valve 36, make Δ T ≈ △ TSetting value、△T1≈△T1Setting valueWith
△T2≈△T2Setting value；
In △ T1 ＞ △ T1Setting valueWith △ T2 ＜ △ T2Setting valueWhen, according to the aperture of logic increase electric expansion valve 37, reduce
The aperture of electric expansion valve 38, is adjusted in synchronism the electric expansion valve of cooling main road, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting valueWith
△T2≈△T2Setting value；
In △ T1 ＞ △ T1Setting valueWith △ T2 ＞ △ T2Setting valueWhen, the aperture of foundation logic increase electric expansion valve 37 and 38,
The electric expansion valve of cooling main road is adjusted in synchronism, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting valueWith △ T2 ≈ △ T2Setting value。
According to the interrelated logic of above-mentioned control cooling main road and the electric expansion valve of cooling branch adjust, make cooling main road and
The suction superheat of cooling branch can meet requirement of system design, make system more stable operation.
Embodiment 2
Present embodiments provide a kind of air-conditioning system control device, involved air-conditioning system includes cooling main road, extremely
Few two-way cooling branch, Fig. 4 is the block diagram of the device, as shown in figure 4, the device includes following part：
Acquisition module 4, for obtaining first degree of superheat, second degree of superheat of at least two-way cooling branch of cooling main road；
Adjustment module, for the refrigerant flow according to second degree of superheat adjusting at least two-way cooling branch, and/or according to
First degree of superheat adjusts the refrigerant flow of cooling main road.
Adjustment module 42, user adjust the refrigerant flow of at least two-way cooling branch, and/or root according to second degree of superheat
The refrigerant flow of cooling main road is adjusted according to first degree of superheat.
In one case, the adjustment module 42 is used for little in first degree of superheat and the difference of the first preset value
In the case of the second preset value, according to being adjusted second degree of superheat and the magnitude relationship of first preset value at least
The refrigerant flow of two-way cooling branch.
In another case, the adjustment module 42 further includes：First adjustment unit, in first degree of superheat
In the case of less than the first preset value, the refrigerant flow of the cooling main road is turned down；Second adjustment unit, for according to institute
State second degree of superheat and first preset value magnitude relationship adjust described at least two-way cooling branch refrigerant flow.
In still another case, the adjustment module 42 includes：3rd adjustment unit, for big in first degree of superheat
In the case of the first preset value, the refrigerant flow of the cooling main road is tuned up；4th adjustment unit, for according to
The magnitude relationship of second degree of superheat and first preset value adjust described at least two-way cooling branch refrigerant flow.
Wherein, above-mentioned second adjustment unit and the 4th adjustment unit further can be used for：When second degree of superheat
During less than first preset value, the refrigerant flow of at least two-way cooling branch is turned down, when second degree of superheat
During more than first preset value, the refrigerant flow of at least two-way cooling branch is increased.
Alternatively, the air-conditioning system control device in the present embodiment is including that can also include another adjustment module, the mould
Block is used for after the refrigerant flow of at least two-way cooling branch is tuned up or turned down, adjusts the system of the cooling main road
Cryogen flow, so as to tend to described first pre- for first degree of superheat and second degree of superheat of at least two-way cooling branch
If value.
Alternatively, it is provided with a pipe between the cooling main road in the present embodiment and the compressor of the air-conditioning system
Road, is provided with expansion valve and solenoid valve on the pipeline, based on this, device provided in this embodiment can also include：Control
Module, in the case of being more than the 3rd preset value in the temperature for detecting the compressor, controls the second solenoid valve to open
Open；Flow-rate adjustment module, for the flow of the second expansion valve described in the temperature adjustment according to the compressor, to reduce the pressure
The temperature of contracting machine.
Embodiment 3
A kind of air-conditioning system is present embodiments provided, with reference to above-mentioned Fig. 3, as shown in figure 3, the system includes：
Cooling main road, at least two-way cooling branch, show the first cooling branch and the second cooling branch in Fig. 3 for the time being,
Solenoid valve and expansion valve are provided between cooling main road and cooling branch.As shown in figure 3, the pressure of cooling main road and air-conditioning system
A pipeline is provided between contracting machine, expansion valve and solenoid valve are provided with the pipeline.
Wherein, the air-conditioning system in the present embodiment can also be including the air-cooled condenser shown in Fig. 3, reservoir, drying
Filter, the first cooling region, the second cooling region and, solenoid valve and check valve for being arranged at before expansion valve etc..
Air-conditioning system provided in this embodiment can be come using air conditioner system control method described in above-described embodiment 1
It is controlled, wherein, realized in control method by being controlled to the flow of expansion valve, expansion valve and expansion valve to supplying
The adjusting of the refrigerant flow of cold branch and cooling main road, since specific control method has carried out in detail in the above-described embodiments
Thin elaboration, therefore details are not described herein again.
Those skilled in the art will readily occur to the present invention its after considering specification and putting into practice invention disclosed herein
Its embodiment.This application is intended to cover the present invention any variations, uses, or adaptations, these modifications, purposes or
Person's adaptive change follows the general principle of the present invention and the common knowledge in the art do not invented including the present invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the invention is not limited in the precision architecture for being described above and being shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is only limited by appended claim.
Claims (10)
1. a kind of air conditioner system control method, it is characterised in that the air-conditioning system includes cooling main road, at least two-way cooling branch
Road, the described method includes：
Obtain first degree of superheat, second degree of superheat of at least two-way cooling branch of the cooling main road；
At least refrigerant flow of two-way cooling branch, and/or according to described first according to being adjusted second degree of superheat
The degree of superheat adjusts the refrigerant flow of the cooling main road.
It is 2. according to the method described in claim 1, it is characterized in that, described at least two according to being adjusted second degree of superheat
The refrigerant flow of road cooling branch, and/or the refrigerant flow according to first degree of superheat adjusting cooling main road, bag
Include：
In the case where first degree of superheat and the difference of the first preset value are not more than the second preset value, according to second mistake
The magnitude relationship of temperature and first preset value adjust described at least two-way cooling branch refrigerant flow.
It is 3. according to the method described in claim 1, it is characterized in that, described at least two according to being adjusted second degree of superheat
The refrigerant flow of road cooling branch, and/or the refrigerant flow according to first degree of superheat adjusting cooling main road, bag
Include：
In the case where first degree of superheat is less than the first preset value, the refrigerant flow of the cooling main road is turned down；
At least system of two-way cooling branch according to being adjusted the magnitude relationship of second degree of superheat and first preset value
Cryogen flow.
It is 4. according to the method described in claim 1, it is characterized in that, described at least two according to being adjusted second degree of superheat
The refrigerant flow of road cooling branch, and/or the refrigerant flow according to first degree of superheat adjusting cooling main road, bag
Include：
In the case where first degree of superheat is more than the first preset value, the refrigerant flow of the cooling main road is tuned up；
At least system of two-way cooling branch according to being adjusted the magnitude relationship of second degree of superheat and first preset value
Cryogen flow.
5. according to the method described in claim 2 to 4 any one, it is characterised in that it is described according to second degree of superheat with
The magnitude relationship of first preset value adjust described at least two-way cooling branch refrigerant flow, including：
When second degree of superheat is less than first preset value, by the refrigerant flow tune of at least two-way cooling branch
It is small, when second degree of superheat is more than first preset value, the refrigerant flow of at least two-way cooling branch is increased
Greatly.
6. the method described in a claim 1, it is characterised in that the method further includes：
After the refrigerant flow of at least two-way cooling branch is tuned up or turned down, the refrigeration of the cooling main road is adjusted
Agent flux, presets so that first degree of superheat and second degree of superheat of at least two-way cooling branch tend to described first
Value.
7. according to the method described in claim 1, it is characterized in that, the compressor of the cooling main road and the air-conditioning system it
Between be provided with a pipeline, expansion valve and solenoid valve are provided with the pipeline, the method further includes：
In the case where the temperature for detecting the compressor is more than the 3rd preset value, the solenoid valve is controlled to open；
According to the flow of expansion valve described in the temperature adjustment of the compressor, to reduce the temperature of the compressor.
8. a kind of air-conditioning system control device, it is characterised in that the air-conditioning system includes cooling main road, at least two-way cooling branch
Road, described device include：
Acquisition module, for obtaining first degree of superheat, the second overheat of at least two-way cooling branch of the cooling main road
Degree；
Adjustment module, for the refrigerant flow of at least two-way cooling branch described in being adjusted according to second degree of superheat, and/or
The refrigerant flow of the cooling main road is adjusted according to first degree of superheat.
A kind of 9. air-conditioning system, it is characterised in that including：
Cooling main road, the first cooling branch and the second cooling branch, are provided between the cooling main road and cooling branch
One solenoid valve and the first expansion valve.
10. system according to claim 9, it is characterised in that the cooling main road and the compressor of the air-conditioning system
Between be provided with a pipeline, the second expansion valve and second solenoid valve are provided with the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711118122.0A CN107975916B (en) | 2017-11-13 | 2017-11-13 | air conditioning system control method, device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711118122.0A CN107975916B (en) | 2017-11-13 | 2017-11-13 | air conditioning system control method, device and system |
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| JPH08159589A (en) * | 1994-12-02 | 1996-06-21 | Hitachi Ltd | Multi-room type air conditioner and operating method therefor |
| CN101981389A (en) * | 2008-03-31 | 2011-02-23 | 大金工业株式会社 | Refrigerating device |
| CN104807229A (en) * | 2015-04-27 | 2015-07-29 | 广东美的暖通设备有限公司 | Multi-split air conditioner and control method thereof |
| CN106907876A (en) * | 2017-02-21 | 2017-06-30 | 广东美的暖通设备有限公司 | Air-conditioning system and its evaporating temperature control method |
| JP6156528B1 (en) * | 2016-02-16 | 2017-07-05 | ダイキン工業株式会社 | Refrigeration equipment |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08159589A (en) * | 1994-12-02 | 1996-06-21 | Hitachi Ltd | Multi-room type air conditioner and operating method therefor |
| CN101981389A (en) * | 2008-03-31 | 2011-02-23 | 大金工业株式会社 | Refrigerating device |
| CN104807229A (en) * | 2015-04-27 | 2015-07-29 | 广东美的暖通设备有限公司 | Multi-split air conditioner and control method thereof |
| JP6156528B1 (en) * | 2016-02-16 | 2017-07-05 | ダイキン工業株式会社 | Refrigeration equipment |
| CN106907876A (en) * | 2017-02-21 | 2017-06-30 | 广东美的暖通设备有限公司 | Air-conditioning system and its evaporating temperature control method |
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