CN108644968A - Control method for air-conditioning system - Google Patents
Control method for air-conditioning system Download PDFInfo
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- CN108644968A CN108644968A CN201810437575.8A CN201810437575A CN108644968A CN 108644968 A CN108644968 A CN 108644968A CN 201810437575 A CN201810437575 A CN 201810437575A CN 108644968 A CN108644968 A CN 108644968A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 6
- 230000007812 deficiency Effects 0.000 description 5
- 238000012935 Averaging Methods 0.000 description 2
- FNMKZDDKPDBYJM-UHFFFAOYSA-N 3-(1,3-benzodioxol-5-yl)-7-(3-methylbut-2-enoxy)chromen-4-one Chemical compound C1=C2OCOC2=CC(C2=COC=3C(C2=O)=CC=C(C=3)OCC=C(C)C)=C1 FNMKZDDKPDBYJM-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
-
- 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
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to air-conditioning technical fields, and in particular to a kind of control method for air-conditioning system.Present invention seek to address that existing multi-online air-conditioning system cannot well control multiple indoor units, the problem of being difficult to meet user demand so as to cause the heat transfer effect of part indoor unit.For this purpose, the control method for air-conditioning system of the present invention includes：Obtain the rate of temperature change of at least two indoor unit local environments；Calculate the average value of the rate of temperature change of at least two indoor units local environment；According to the average value of the rate of temperature change and the rate of temperature change of the indoor unit local environment; selectively the degree of superheat of the indoor unit is adjusted; so that the air-conditioning system can effectively judge the case where indoor unit is with the presence or absence of ability surplus or scarce capacity by rate of temperature change, the heat transfer effect to which the indoor unit be effectively ensured can meet user demand constantly.
Description
Technical field
The invention belongs to air-conditioning technical fields, and in particular to a kind of control method for air-conditioning system.
Background technology
With the continuous improvement of people's living standards, people also proposed increasingly higher demands to living environment.In order to
Comfortable environment temperature, air conditioner is maintained to have become essential a kind of equipment in people's life.Normally, it is existing very much
The larger place of area can all use the air-conditioning system of multi-connected machine, i.e., cooperated by an outdoor unit and multiple indoor units,
To realize the effect of refrigeration or heating.Meanwhile existing multi-online air-conditioning system is all by setting target superheat degree come to more
A indoor unit is controlled, and still, this control mode still there is a problem of certain, it is difficult to meet user demand.
Specifically, existing air-conditioning system usually can all preset target superheat when carrying out indoor unit match control
Degree, then by controlling the aperture of electric expansion valve so that each indoor unit reaches target superheat degree；Alternatively, also part air-conditioning system
System can select the different degrees of superheat according to the temperature range that different indoor units are set.But the mistake of these control methods setting
Temperature is all invariable, and during actual use, since different indoor units may have different structures and company
Mode is connect, and different indoor units usually all have different loads, the ability so as to cause part indoor unit is superfluous and also has
The problem of some indoor unit capabilities deficiency.
Correspondingly, this field needs a kind of control method for air-conditioning system newly to solve the above problems.
Invention content
It, cannot be right well in order to solve existing multi-online air-conditioning system in order to solve the above problem in the prior art
Multiple indoor units are controlled, the problem of being difficult to meet user demand so as to cause the heat transfer effect of part indoor unit, the present invention
A kind of control method for air-conditioning system is provided, the air-conditioning system includes multiple indoor units, and the control method includes：
Obtain the rate of temperature change of at least two indoor unit local environments；The temperature for calculating at least two indoor units local environment becomes
The average value of rate；According to the average value of the rate of temperature change and the rate of temperature change of the indoor unit local environment, selection
Property the degree of superheat of the indoor unit is adjusted.
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " according to the indoor unit local environment
Rate of temperature change and the rate of temperature change average value, selectively the degree of superheat of the indoor unit is adjusted "
Step specifically includes：By the ratio of the rate of temperature change of the indoor unit local environment and the average value of the rate of temperature change with
First preset range is compared；According to being averaged for the rate of temperature change of the indoor unit local environment and the rate of temperature change
The comparison result of the ratio of value and first preset range, is selectively adjusted the degree of superheat of the indoor unit.
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " according to the indoor unit local environment
Rate of temperature change and the rate of temperature change average value ratio and first preset range comparison result, selectivity
Ground is adjusted the degree of superheat of the indoor unit " the step of specifically include：If the temperature of the indoor unit local environment becomes
The ratio of the average value of rate and the rate of temperature change is in first preset range, then not to the overheat of the indoor unit
Degree is adjusted.
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " according to the indoor unit local environment
Rate of temperature change and the rate of temperature change average value ratio and first preset range comparison result, selectivity
Ground is adjusted the degree of superheat of the indoor unit " the step of specifically include：If the temperature of the indoor unit local environment becomes
The ratio of the average value of rate and the rate of temperature change then obtains at least two Room not in first preset range
The coil temperature of interior machine；According to the coil temperature of at least two indoor unit, selectively to the degree of superheat of the indoor unit
It is adjusted.
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " according at least two indoor unit
Coil temperature, selectively the degree of superheat of the indoor unit is adjusted " the step of specifically include：At least two described in calculating
The average value of the coil temperature of a indoor unit；By the difference of the coil temperature of the indoor unit and the average value of the coil temperature
It is compared with the second preset range；According to the difference of the coil temperature of the indoor unit and the average value of the coil temperature with
The comparison result of second preset range, is selectively adjusted the degree of superheat of the indoor unit.
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " according to the coil pipe temperature of the indoor unit
The comparison result of the difference and second preset range of the average value of degree and the coil temperature, selectively to the interior
The degree of superheat of machine is adjusted " the step of specifically include：If the coil temperature of the indoor unit and the coil temperature is flat
The difference of mean value is not adjusted the degree of superheat of the indoor unit then in second preset range.
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " according to the coil pipe temperature of the indoor unit
The comparison result of the difference and second preset range of the average value of degree and the coil temperature, selectively to the interior
The degree of superheat of machine is adjusted " the step of specifically include：If the coil temperature of the indoor unit and the coil temperature is flat
The difference of mean value in second preset range, is not then adjusted the degree of superheat of the indoor unit.
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " at least two indoor unit institutes are being obtained
Before the step of rate of temperature change of place's environment ", the control method further includes：Obtain the temperature of the indoor unit local environment
With the target mean temperature of the air-conditioning system；The temperature of the indoor unit local environment and the target mean temperature are carried out
Compare；According to the comparison result of the temperature of the indoor unit local environment and the target mean temperature, selectively executes and " obtain
Take the rate of temperature change of at least two indoor unit local environments " the step of.
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " according to the indoor unit local environment
Temperature and the target mean temperature comparison result, selectively execute and " obtain at least two indoor unit local environments
Rate of temperature change " the step of " the step of specifically include：Under cooling condition, if the temperature of the indoor unit local environment is small
In or equal to the target mean temperature, then the step of " rate of temperature change for obtaining at least two indoor unit local environments " is not executed
Suddenly, directly the degree of superheat of the indoor unit is adjusted；If the temperature of the indoor unit local environment is more than the target
Mean temperature, then the step of executing the rate of temperature change of at least two indoor unit local environments " obtain ".
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " according to the indoor unit local environment
Temperature and the target mean temperature comparison result, selectively execute and " obtain at least two indoor unit local environments
Rate of temperature change " the step of " the step of specifically include：Under heating condition, if the temperature of the indoor unit local environment is big
In or equal to the target mean temperature, then the step of " rate of temperature change for obtaining at least two indoor unit local environments " is not executed
Suddenly, directly the degree of superheat of the indoor unit is adjusted；If the temperature of the indoor unit local environment is less than the target
Mean temperature, then the step of executing the rate of temperature change of at least two indoor unit local environments " obtain ".
It will be appreciated to those of skill in the art that in the inventive solutions, air-conditioning system of the invention includes
Multiple indoor units, the control method for air-conditioning system of the invention include：Obtain the temperature of at least two indoor unit local environments
Spend change rate；Calculate the average value of the rate of temperature change of at least two indoor units local environment；According to the indoor unit institute
The average value for locating the rate of temperature change and the rate of temperature change of environment, selectively adjusts the degree of superheat of the indoor unit
It is whole, so as to the air-conditioning system can by rate of temperature change come effectively judge the indoor unit with the presence or absence of ability it is superfluous or
The case where scarce capacity, the heat transfer effect to which the indoor unit be effectively ensured can meet user demand constantly.
Description of the drawings
Fig. 1 is the key step flow chart of the control method for air-conditioning system of the present invention；
Fig. 2 is the specific steps flow chart of the control method for air-conditioning system of the present invention.
Specific implementation mode
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining the technical principle of the present invention, it is not intended that limit the scope of the invention.For example, although
In the application according to particular order describe the present invention method each step, but these be not sequentially it is restrictive,
Under the premise of without departing from the basic principle of the present invention, those skilled in the art can execute the step in a different order
Suddenly.
Based on the existing air-conditioning system proposed in background technology when carrying out indoor unit match control all can use it is constant not
The degree of superheat of change, and during actual use, since different indoor units may have different structure and connection type, and
And different indoor units usually all have different loads, the ability so as to cause part indoor unit is superfluous and also has some indoor units
The problem of scarce capacity.The present invention provides a kind of control method for air-conditioning system, the air-conditioning system includes multiple rooms
Interior machine, and the air-conditioning system can adjust the degree of superheat of different indoor units in real time based on multiple underlying parameters, with
Toilet, which states air-conditioning system, can timely and effectively judge the case where each indoor unit is with the presence or absence of ability surplus or scarce capacity,
Heat transfer effect to which each indoor unit be effectively ensured can meet user demand constantly.
Specifically, in the preferred embodiment, the air-conditioning system includes controller, and each indoor unit includes
First temperature sensor and second temperature sensor；Wherein, first temperature sensor is for detecting residing for the indoor unit
The temperature of environment, the second temperature sensor are used to detect the coil temperature of the indoor unit.Meanwhile the controller can
The temperature information of first temperature sensor and second temperature sensor detection is obtained, and the controller can also
The rate of temperature change of different indoor unit local environments is calculated according to the temperature information that these get.In addition, the air-conditioning system
System further includes multiple electric expansion valves, and the controller can control the aperture of the electric expansion valve.Those skilled in the art
, it is understood that the description of these structures is not restrictive, technical staff can also be according to actual use demand voluntarily
Set the concrete structure of the air-conditioning system；For example, the controller can be the master controller of the air-conditioning system, it can also
It is the controller that technical staff is separately provided；As long as the air-conditioning system can run the control method of the present invention.
Referring next to Fig. 1, which is the key step flow chart of the control method for air-conditioning system of the present invention.Such as figure
Shown in 1, control method of the invention mainly includes the following steps：
S1：Obtain the rate of temperature change of at least two indoor unit local environments；
S2：Calculate the average value of the rate of temperature change of at least two indoor unit local environments；
S3：According to the average value of the rate of temperature change of indoor unit local environment and rate of temperature change, selectively to interior
The degree of superheat of machine is adjusted.
Further, in step sl, the controller can obtain the temperature change of at least two indoor unit local environments
Rate, so that the air-conditioning system can get the temperature variations of multiple indoor units.Then, step S2, i.e. institute are executed
State controller can be calculated according to the data got at least two indoor units local environment rate of temperature change it is flat
Mean value so that the temperature-averaging that the air-conditioning system can obtain multiple indoor unit local environments by multiple rate of temperature change becomes
Change situation, effectively to be judged the exchange capability of heat of each indoor unit temperature-averaging situation of change as with reference to standard.
Finally, execute step S3, i.e., according to the average value of the rate of temperature change and the rate of temperature change of the indoor unit local environment,
Selectively the degree of superheat of the indoor unit is adjusted.Specifically, the control method is by the rate of temperature change
Average value is used as the standard of referring to, and the average value of rate of temperature change and the rate of temperature change further according to each indoor unit is distinguished
The problem of each indoor unit is with the presence or absence of ability surplus or scarce capacity is judged, so that the air-conditioning system can be to there are energy
Power is insufficient or the degree of superheat of the indoor unit of ability overstock problem is adjusted, so that the exchange capability of heat of each indoor unit can
Enough heat exchange demands with local environment match, so that each indoor unit can more efficiently work, so as to described
Air-conditioning system can farthest meet user demand.
Referring next to Fig. 2, which is the specific steps flow chart of the control method for air-conditioning system of the present invention.It needs
Illustrate, the control method of the present invention is said in case of running refrigeration mode by the air-conditioning system below
It is bright；Meanwhile although in the preferred embodiment, the air-conditioning system can obtain the operation data of each indoor unit, it is described
Air-conditioning system obviously can also only fetching portion indoor unit operation data.As shown in Fig. 2, the control method of the present invention
Specifically include the following steps：
S101：Obtain the target mean temperature of the temperature and air-conditioning system of indoor unit local environment；
S102：Judge whether the temperature of indoor unit local environment is more than target mean temperature；If so, thening follow the steps
S104；If it is not, then executing step S103；
S103：Directly the degree of superheat of the indoor unit is adjusted；
S104：Obtain the rate of temperature change of each indoor unit local environment；
S105：Calculate the average value of the rate of temperature change of all indoor unit local environments；
S106：Judge the rate of temperature change of the indoor unit local environment and the average value of rate of temperature change ratio whether
In the first preset range；If so, thening follow the steps S107；If it is not, then executing step S108；
S107：The degree of superheat of the indoor unit is not adjusted；
S108：Obtain the coil temperature of each indoor unit；
S109：Calculate the average value of the coil temperature of all indoor units；
S110：Judge the difference of the coil temperature of the indoor unit and the average value of coil temperature whether in the second default model
In enclosing；If so, thening follow the steps S107；If it is not, then executing step S111；
S111：The degree of superheat of the indoor unit is adjusted.
It should be noted that in step S101, the calculating process of the target mean temperature is as follows：
First, the setting mean temperature of all indoor units is calculated：
Wherein, the air-conditioning system includes n indoor unit, TiIndicate the set temperature of i-th of indoor unit.
Then, the difference of the set temperature and the setting mean temperature of each indoor unit is calculated separately：
Finally, each indoor unit is corresponding | Δ Ti| it is compared with preset difference value, is when with preset difference value being 3 DEG C
Example：Will each indoor unit it is corresponding | Δ Ti| it is compared with 3 DEG C, if the indoor unit is corresponding | Δ Ti| 3 DEG C of ＞, then
It is no longer participate in this calculating using the set temperature of the indoor unit as invalid value；If the indoor unit is corresponding | Δ Ti|≤3
DEG C, then continue to participate in this calculating using the set temperature of the indoor unit as virtual value.Reusability above-mentioned steps are to remaining
Virtual value is calculated, until when being generated without invalid value, calculates the average value of all virtual values at this time, and by the average value
As target mean temperature.
It is understood that the calculating process of target mean temperature, which is exactly in fact one, is similar to removal maximin
The process of average value is calculated, such calculation can effectively avoid target mean temperature by some excessively high set temperatures or mistake
The influence of low set temperature feels suitable temperature to effectively obtain most of user, and then effectively avoids the air-conditioning system
The problem of system influences overall heat exchange effect to meet the needs of a few users, farthest to meet the system of most users
Cold demand.Certainly, the calculating process in this preferred embodiment is merely exemplary, and technical staff can also be according to actual use need
Ask the calculating process of sets itself target mean temperature or the numerical value of sets itself target mean temperature.
Further, in step s 102, by the temperature of the indoor unit local environment and the target mean temperature into
Row compares, effectively to judge whether the temperature of the indoor unit local environment has reached the temperature that most users feel suitable
Degree.If at this time the temperature of the indoor unit local environment already less than or be equal to the target mean temperature, illustrate described in
The refrigeration effect of indoor unit has reached the average level of the air-conditioning system；At this point, the mesh of the indoor unit can be tuned up suitably
The degree of superheat is marked, so that the air-conditioning system distributes less heat transferring medium to the indoor unit, so that the air-conditioning system
More heat transferring mediums can quickly be distributed to being in other insufficient indoor units of refrigerating capacity, and then air-conditioning described in efficient balance
The refrigeration effect of all indoor units in system, effectively to accelerate the integrally cooling speed of the air-conditioning system.Art technology
Personnel are, it is understood that technical staff can be according to the single adjustment amount of the actual conditions sets itself degree of superheat, and technology
Personnel can also simultaneously adjust accordingly other operating parameters of the indoor unit；For example, reducing the wind of the indoor unit
The collocation of machine rotating speed etc., these adjustment modes is not restrictive.Meanwhile the if temperature of the indoor unit local environment at this time
Degree is more than the target mean temperature, then illustrating the indoor unit, there may be the problems of refrigerating capacity deficiency；At this point, executing step
Rapid S104, to carry out further effectively judgement to the refrigeration situation of the indoor unit.
Further, in step S104, the temperature change of each indoor unit local environment in the air-conditioning system is obtained
Rate；And in step S105, the average value of the rate of temperature change of all indoor unit local environments is calculated.It should be noted that this
The mode that invention does not obtain the air-conditioning system rate of temperature change imposes any restrictions.Then, execute step S106, i.e., it will be described
The ratio of the average value of the rate of temperature change of indoor unit local environment and the rate of temperature change is compared with the first preset range
Compared with.In addition it is also necessary to explanation, technical staff can be according to the first preset range described in actual conditions sets itself；It is preferred that
Ground, first preset range are 0.8 to 1.2；Meanwhile the control method obviously can also use ring residing for the indoor unit
The difference of the rate of temperature change in border and the average value of the rate of temperature change participates in judging.
It will be appreciated to those of skill in the art that the average value of the rate of temperature change represents the air-conditioning system
Average refrigerating speed；Therefore, the ratio of the average value of the rate of temperature change and rate of temperature change of environment described in the indoor unit
Value then represents the deviation ratio between the rate of temperature change and the average value.In other words, if the ratio is described first
In preset range, then illustrate average level of refrigeration of the refrigerating speed already close to the air-conditioning system of the indoor unit；At this point,
Step S107 is executed, i.e., the degree of superheat of the indoor unit is not adjusted, so that the indoor unit keeps average refrigerating speed
.Meanwhile there may be ability surpluses if the ratio not in first preset range, illustrates the indoor unit
Or the case where scarce capacity；At this point, execute step S108, so as to the air-conditioning system can according to later the step of it is further accurate
The indoor unit is really judged with the presence or absence of refrigerating capacity surplus or the problem of refrigerating capacity deficiency, to which the standard of judgement be effectively ensured
True property.
Further, in step S108, the coil temperature of each indoor unit in the air-conditioning system is obtained；And in step
In S109, the average value of the coil temperature of all indoor units is calculated.It should be noted that the present invention does not obtain the air-conditioning system
The mode of the indoor unit coil temperature is taken to impose any restrictions.Then, step S110 is executed, i.e., by the coil pipe temperature of the indoor unit
The difference of the average value of degree and the coil temperature is compared with the second preset range.In addition it is also necessary to explanation, technology
Personnel can be according to the second preset range described in actual conditions sets itself；Preferably, second preset range is -2 DEG C to 2
℃；Meanwhile the control method obviously can also use the average value of the coil temperature and the coil temperature of the indoor unit
Ratio participate in judging.
It will be appreciated to those of skill in the art that the temperature of the indoor unit local environment can directly reflect the room
The refrigeration effect of interior machine, meanwhile, the coil temperature of the indoor unit can also reflect that the indoor unit is current to a certain extent
Refrigeration effect.Therefore, the coil temperature of the indoor unit and the difference of the average value of the coil temperature then represent the room
Departure between the coil temperature of interior machine and the average value.In other words, if the difference is in second preset range
It is interior, then illustrate average refrigeration effect of the refrigeration effect already close to the air-conditioning system of the indoor unit；At this point, executing step
S107 is not adjusted the degree of superheat of the indoor unit, so that the indoor unit can keep average refrigeration effect.Together
When, if the difference not in second preset range, illustrates the indoor unit, there are ability surplus or scarce capacities
The problem of；At this point, executing step S111, i.e., the degree of superheat of the indoor unit is adjusted.
Further, in step S111, if the ratio is less than the minimum value of first preset range, and
The difference is more than the maximum value of second preset range, then illustrates that the indoor unit has refrigerating capacity deficiency；
At this point, the air-conditioning system can suitably reduce the target superheat degree of the indoor unit, and suitably increase the indoor unit pair
The aperture and rotation speed of fan for the electric expansion valve answered, to effectively improve the refrigerating capacity of the indoor unit so that the room
Interior machine can fast implement preset refrigeration effect, to the integrally cooling ability of air-conditioning system described in efficient balance.Meanwhile such as
Ratio described in fruit is more than the maximum value of first preset range, and the difference is less than the minimum of second preset range
Value then illustrates that the indoor unit has refrigerating capacity surplus；At this point, the air-conditioning system can be by the indoor unit
Target superheat degree suitably increases, and suitably reduces the aperture and rotation speed of fan of the corresponding electric expansion valve of the indoor unit, from
And so that the indoor unit maintains average level of refrigeration, so that the air-conditioning system can distribute more heat transferring mediums
It is used for indoor machine to enhance its refrigeration effect, and then the integrally cooling ability of the farthest balanced air-conditioning system to other.
It will be appreciated to those of skill in the art that when the air-conditioning system judges the indoor unit, there are scarce capacity or ability mistakes
When surplus problem, technical staff can be with the specific adjustment mode of sets itself changing the refrigerating capacity of the indoor unit.
It should also be noted that, when the air-conditioning system is in heating condition, cooling condition is in not with the air-conditioning
With, in step s 102, if the temperature of the indoor unit local environment is greater than or equal to the target mean temperature,
Step S103 is executed, i.e., directly the degree of superheat of the indoor unit is adjusted；Meanwhile if the indoor unit local environment
Temperature is less than the target mean temperature, thens follow the steps S104, further to be carried out to the heating capacity of the indoor unit
Judge.In addition, in step S111, if the ratio is less than the minimum value of first preset range, and the difference
Less than the minimum value of second preset range, then illustrate that the indoor unit has heating capacity deficiency；If described
Ratio is more than the maximum value of first preset range, and the difference is more than the maximum value of second preset range, then
Illustrate that the indoor unit has heating capacity surplus.
Finally, it should be noted that above-described embodiment is the preferred embodiments of the invention, it is not intended as to the present invention
The limitation of protection domain.Those skilled in the art can be properly added or delete as needed one when actually using the present invention
Part steps, or exchange the sequence between different step.This basic principle changed not departing from the present invention, belongs to this
The protection domain of invention.
So far, it has been combined attached drawing and describes the preferred embodiments of the invention, still, those skilled in the art are easy reason
Solution, protection scope of the present invention are expressly not limited to these specific implementation modes.Before without departing from the principle of the present invention
It puts, those skilled in the art can make the relevant technologies feature equivalent change or replacement, after these changes or replacement
Technical solution fall within protection scope of the present invention.
Claims (10)
1. a kind of control method for air-conditioning system, the air-conditioning system includes multiple indoor units, which is characterized in that the control
Method processed includes：
Obtain the rate of temperature change of at least two indoor unit local environments；
Calculate the average value of the rate of temperature change of at least two indoor units local environment；
According to the average value of the rate of temperature change and the rate of temperature change of the indoor unit local environment, selectively to described
The degree of superheat of indoor unit is adjusted.
2. control method according to claim 1, which is characterized in that " become according to the temperature of the indoor unit local environment
The average value of rate and the rate of temperature change is selectively adjusted the degree of superheat of the indoor unit " the step of it is specific
Including：
The ratio of the rate of temperature change of the indoor unit local environment and the average value of the rate of temperature change and first are preset
Range is compared；
According to the ratio of the rate of temperature change of the indoor unit local environment and the average value of the rate of temperature change and described the
The comparison result of one preset range is selectively adjusted the degree of superheat of the indoor unit.
3. control method according to claim 2, which is characterized in that " become according to the temperature of the indoor unit local environment
The comparison result of the ratio of the average value of rate and the rate of temperature change and first preset range, selectively to described
The degree of superheat of indoor unit is adjusted " the step of specifically include：
If the ratio of the rate of temperature change of the indoor unit local environment and the average value of the rate of temperature change is described
In one preset range, then the degree of superheat of the indoor unit is not adjusted.
4. control method according to claim 2, which is characterized in that " become according to the temperature of the indoor unit local environment
The comparison result of the ratio of the average value of rate and the rate of temperature change and first preset range, selectively to described
The degree of superheat of indoor unit is adjusted " the step of specifically include：
If the ratio of the rate of temperature change of the indoor unit local environment and the average value of the rate of temperature change is not described
In first preset range, then the coil temperature of at least two indoor unit is obtained；
According to the coil temperature of at least two indoor unit, selectively the degree of superheat of the indoor unit is adjusted.
5. control method according to claim 4, which is characterized in that " according to the coil pipe temperature of at least two indoor unit
Degree, selectively the degree of superheat of the indoor unit is adjusted " the step of specifically include：
Calculate the average value of the coil temperature of at least two indoor unit；
The difference of the coil temperature of the indoor unit and the average value of the coil temperature is compared with the second preset range；
According to the difference of the coil temperature of the indoor unit and the average value of the coil temperature and second preset range
Comparison result is selectively adjusted the degree of superheat of the indoor unit.
6. control method according to claim 5, which is characterized in that " according to the coil temperature of the indoor unit and described
The comparison result of the difference of the average value of coil temperature and second preset range, selectively to the overheat of the indoor unit
Degree be adjusted " the step of specifically include：
If the difference of the average value of the coil temperature of the indoor unit and the coil temperature in second preset range,
The degree of superheat of the indoor unit is not adjusted then.
7. control method according to claim 5, which is characterized in that " according to the coil temperature of the indoor unit and described
The comparison result of the difference of the average value of coil temperature and second preset range, selectively to the overheat of the indoor unit
Degree be adjusted " the step of specifically include：
If the difference of the average value of the coil temperature of the indoor unit and the coil temperature is not in second preset range
It is interior, then the degree of superheat of the indoor unit is adjusted.
8. control method according to claim 1, which is characterized in that " obtaining at least two indoor unit local environments
Before the step of rate of temperature change ", the control method further includes：
Obtain the temperature of the indoor unit local environment and the target mean temperature of the air-conditioning system；
The temperature of the indoor unit local environment is compared with the target mean temperature；
According to the comparison result of the temperature of the indoor unit local environment and the target mean temperature, selectively executes and " obtain
Take the rate of temperature change of at least two indoor unit local environments " the step of.
9. control method according to claim 8, which is characterized in that " according to the temperature of the indoor unit local environment with
The comparison result of the target mean temperature selectively executes and " obtains the temperature change of at least two indoor unit local environments
Rate " the step of " the step of specifically include：
Under cooling condition, if the temperature of the indoor unit local environment is less than or equal to the target mean temperature, no
The step of executing the rate of temperature change of at least two indoor unit local environments " obtain ", directly to the degree of superheat of the indoor unit into
Row adjustment；
If the temperature of the indoor unit local environment is more than the target mean temperature, executes and " it is indoor to obtain at least two
The step of rate of temperature change of machine local environment ".
10. control method according to claim 8, which is characterized in that " according to the temperature of the indoor unit local environment with
The comparison result of the target mean temperature selectively executes and " obtains the temperature change of at least two indoor unit local environments
Rate " the step of " the step of specifically include：
Under heating condition, if the temperature of the indoor unit local environment is greater than or equal to the target mean temperature, no
The step of executing the rate of temperature change of at least two indoor unit local environments " obtain ", directly to the degree of superheat of the indoor unit into
Row adjustment；
If the temperature of the indoor unit local environment is less than the target mean temperature, executes and " it is indoor to obtain at least two
The step of rate of temperature change of machine local environment ".
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Effective date of registration: 20201209 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR-CONDITIONING ELECTRONIC Co.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR-CONDITIONING ELECTRONIC Co.,Ltd. |
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Effective date of registration: 20211110 Address after: 230601 plant 1, 2 and 3, Haier Innovation Industrial Park, 3456 Shixin Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: HEFEI HAIER AIR CONDITIONING ELECTRONIC Co.,Ltd. Patentee after: QINGDAO HAIER AIR-CONDITIONING ELECTRONIC Co.,Ltd. Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, No. 1 Haier Road, Laoshan District, Qingdao, Shandong Patentee before: QINGDAO HAIER AIR-CONDITIONING ELECTRONIC Co.,Ltd. Patentee before: Haier Smart Home Co., Ltd. |