CN106594964A - Control method for controlling operation of air conditioner system and air conditioner system - Google Patents
Control method for controlling operation of air conditioner system and air conditioner system Download PDFInfo
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- CN106594964A CN106594964A CN201610973043.7A CN201610973043A CN106594964A CN 106594964 A CN106594964 A CN 106594964A CN 201610973043 A CN201610973043 A CN 201610973043A CN 106594964 A CN106594964 A CN 106594964A
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- heat exchanger
- threshold
- control method
- heat
- air
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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
- F24F11/70—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of 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
- 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
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/40—Pressure, e.g. wind pressure
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to a control method for controlling the operation of an air conditioner system and the air conditioner system. According to one embodiment of the invention, the control method for controlling the operation of the air conditioner system (AC) is provided. The air conditioner system (AC) comprises a first heat exchanger (10) and second heat exchangers (30) which are arranged in a circulating loop (CL) of the air conditioner system (AC); and when flowing through the first heat exchanger (10), working fluid in the circulating loop (CL) absorbs heat, but when flowing through the second heat exchangers (30), the working fluid releases heat. The control method comprises the following steps: detection of the first heat exchanger, namely detecting operation parameters of the first heat exchanger (10), and adjustment of the second heat exchangers, namely adjusting the operation of the second heat exchangers (30) according to the operation parameters of the first heat exchanger (10); and therefore, the operation parameters of the first heat exchanger (10) are changed into a preset parameter range. According to the control method, the freezing resistance and/or the refrigeration property adjustment performance of the air conditioner system can be improved.
Description
Technical field
The present invention relates to field of air conditioning, and in particular to make in terms of the antifreeze and/or refrigerating capacity regulation of air-conditioning system
A kind of improved control method for controlling the operation of air-conditioning system and a kind of associated air-conditioning system.
Background technology
Under low ring environment temperature case, using compression refrigeration cycle air-conditioning system is affected by environment and reliability
It is poor.Now, the air-conditioning system with natural cooling closed circuit can be generally adopted to provide refrigeration.Following with natural cooling
In the air-conditioning system of loop back path, refrigerant (working fluid) is condensed in such as finned heat exchanger, so as to environment heat exchange and by heat
Amount is transferred in environment.Afterwards, during refrigerant is pressurized subsequently into such as case tube heat exchanger by refrigerant pump to refrigerant, so as to by package
The heat of water is taken away in heat exchanger (shell-tube evaporator), is achieved in refrigeration.However, following with natural cooling due to adopting
Environment temperature is relatively low when the air-conditioning system of loop back path provides refrigeration, relatively low hence into the temperature of the refrigerant of case tube heat exchanger,
Thus there is the hidden danger of bursting by freezing heat exchanger tube.
Here, it is noted that the technology contents provided in this part are intended to contribute to those skilled in the art couple
The understanding of the present invention, and not necessarily constitute prior art.
The content of the invention
In order to solve or mitigating at least one of the problems referred to above in the presence of correlation technique problem, the present invention provides one
Plant the control method and a kind of associated air-conditioning system for controlling the operation of air-conditioning system, it is intended to improve the anti-of air-conditioning system
Freeze performance and/or refrigerating capacity regulation performance.
According to an aspect of the present invention, there is provided a kind of control method for controlling the operation of air-conditioning system.The sky
Adjusting system includes the First Heat Exchanger and the second heat exchanger being arranged in the closed circuit of the air-conditioning system, the closed circuit
In operating fluid crosses described in First Heat Exchanger and absorb heat and flow through second heat exchanger and discharge heat.It is described
Control method is comprised the following steps：First Heat Exchanger detecting step, i.e. the operational factor of the detection First Heat Exchanger；And
Second heat exchanger regulating step, i.e. the operation of second heat exchanger is adjusted according to the operational factor of the First Heat Exchanger, by
This changes the operational factor of the First Heat Exchanger to predefined parameter scope.
Preferably, in above-mentioned control method, the First Heat Exchanger detecting step includes：Detect the First Heat Exchanger
Pressure and/or temperature.
Preferably, in above-mentioned control method：The First Heat Exchanger is evaporimeter, and, the First Heat Exchanger inspection
Surveying step includes：Detect the evaporating pressure and/or evaporating temperature of the First Heat Exchanger.
Preferably, in above-mentioned control method, in the case where the evaporating pressure of the First Heat Exchanger is detected, described the
Two heat exchanger regulating steps include：When the detection evaporating pressure of the First Heat Exchanger is less than or equal to first threshold, reduce institute
The heat exchange area of the second heat exchanger is stated, and the detection evaporating pressure for working as the First Heat Exchanger is more than or equal to than the first threshold
During big Second Threshold, increase the heat exchange area of second heat exchanger.
Preferably, in above-mentioned control method：Second heat exchanger includes the heat exchanger of multiple stage second being connected in parallel, with
And, the second heat exchanger regulating step includes：When the detection evaporating pressure of the First Heat Exchanger is less than or equal to described first
During threshold value, the unlatching number of units of second heat exchanger is reduced to reduce the heat exchange area of second heat exchanger, when described the
When the detection evaporating pressure of one heat exchanger is more than or equal to the Second Threshold, increase the unlatching number of units of second heat exchanger so as to
Increase the heat exchange area of second heat exchanger.
Preferably, in above-mentioned control method：Second heat exchanger includes heat exchange blower fan, and, detecting described the
In the case of the evaporating pressure of one heat exchanger, the second heat exchanger regulating step includes：When the detection of the First Heat Exchanger
When evaporating pressure is less than or equal to first threshold, reduce the rotating speed of the heat exchange blower fan, and the detection for working as the First Heat Exchanger is steamed
When sending out pressure more than or equal to the Second Threshold bigger than the first threshold, increase the rotating speed of the heat exchange blower fan.
Preferably, in above-mentioned control method, the first threshold corresponds to such value, when the First Heat Exchanger
There is bursting by freezing in the First Heat Exchanger when evaporating pressure is less than the value, and the Second Threshold corresponds to such value, when described the
There is cooling deficiency in the air-conditioning system when evaporating pressure of one heat exchanger is more than the value.
Preferably, in above-mentioned control method：The air-conditioning system also includes being arranged on being located in the closed circuit
The upstream of the First Heat Exchanger and positioned at the pump in the downstream of second heat exchanger, and, the control method also includes pump
Regulating step --- when the detection evaporating pressure of the First Heat Exchanger is less than or equal to the first threshold, reduce the pump
Pumpability, and when the detection evaporating pressure of the First Heat Exchanger is more than or equal to the Second Threshold, increase the pump
Pumpability.
Preferably, in above-mentioned control method：The pump is variable frequency pump, and, the pump regulating step includes：When described
When the detection evaporating pressure of First Heat Exchanger is less than or equal to first threshold, reduce the operating frequency of the pump, and work as described first
When the detection evaporating pressure of heat exchanger is more than or equal to the Second Threshold bigger than the first threshold, increase the work frequency of the pump
Rate.
Preferably, in above-mentioned control method：The air-conditioning system also includes being arranged on being located in the closed circuit
The valve of the upstream of the First Heat Exchanger, and, the control method also includes valve regulation step --- when the First Heat Exchanger
Detection evaporating pressure when being less than or equal to first threshold, reduce the aperture of the valve, and the detection for working as the First Heat Exchanger is steamed
When sending out pressure more than or equal to the Second Threshold, increase the aperture of the valve.
Preferably, in above-mentioned control method, the second heat exchanger regulating step includes：Changing second heat exchange
After the heat exchange area of device, when the detection evaporating pressure of the First Heat Exchanger changes to more than the first threshold and less than institute
When stating three value of Second Threshold, the heat exchange area for making second heat exchanger recovers to former heat exchange area.
According to a further aspect in the invention, there is provided a kind of air-conditioning system.The air-conditioning system includes control device, the control
Device processed as described above control method controlling the operation of the air-conditioning system.
Preferably, in above-mentioned air-conditioning system, the air-conditioning system is air cooling cold water air conditioning group, and the closed circuit is
Natural cooling closed circuit.
According to the present invention, by detecting that then the operational factor of First Heat Exchanger is adjusted according to the operational factor of First Heat Exchanger
Save the operation of the second heat exchanger and/or adjust pumpability of pump etc., can solve the problem that (low temperature) natural cooling circulator
Case tube heat exchanger hypotony temperature is too low so as to the problem for package bursting by freezing occur during group operation, thereby guarantees that unit operation reliability
Property.On the other hand, by the heat exchange area of the second heat exchanger of change, the rotating speed of the heat exchange blower fan for changing the second heat exchanger, change
The aperture (the especially co-operatings of these modes) of the rotating speed of pump and/change valve, can be reliably achieved air-conditioning system with certainly
The reliable adjustment (such as adjusting between 10%-100%) of refrigerating capacity when so cooling down circular flow.Further aspect, due to adopting
With variable frequency pump, compared with using the scheme for determine frequency pump, can solve when natural cooling Cycle Unit is run determine frequency pump capacity without
Method adjusts and determines the normally opened normal pass of frequency pump and affect the reliability of pump while affecting the problem of client's comfortableness.
Description of the drawings
By referring to the drawings to the detailed description of embodiment of the present invention, the above-mentioned and other mesh of the present invention
, feature and advantage will be apparent from, in the accompanying drawings：
Fig. 1 is the structured flowchart for illustrating air-conditioning system of the invention.
Specific embodiment
With reference to the accompanying drawings, describe the present invention by illustrative embodiments.To the following detailed of the present invention
Carefully describe merely for the sake of illustration purpose, and be definitely not to the present invention and its application or the restriction of purposes.
It is Fig. 1 (Fig. 1 be illustrate air-conditioning system of the invention structured flowchart) with reference to the unique figure of the application, according to
Air-conditioning system AC of the present invention includes that the First Heat Exchanger 10 and second being arranged in the closed circuit CL of air-conditioning system AC exchanges heat
Device 30.
The working fluid circulated in closed circuit CL can flow through First Heat Exchanger 10 and can change first
Heat (that is, cold being discharged to environment) is absorbed in hot device 10.The working fluid circulated in closed circuit CL can flow
The second heat exchangers of Jing 30 and heat (that is, receive from environment to cold) can be discharged in the second heat exchanger 30.
Air-conditioning system AC can be air cooling cold water air conditioning group.Specifically, the second heat exchanger 30 can carry out heat with air
Exchange and heat is discharged into air, and First Heat Exchanger 10 can carry out heat exchange with water and absorb the heat in water so as to
There is provided cold water thus can be to indoor offer cold air by cold water.Closed circuit CL can be natural cooling closed circuit,
In this case, the devices such as compressor can be for example omitted in closed circuit CL.
In some instances, First Heat Exchanger 10 can be evaporimeter, and the second heat exchanger 30 can be condenser.Especially
Ground, First Heat Exchanger 10 can be case tube heat exchanger such as shell-tube evaporator, and the second heat exchanger 30 can be finned heat exchanger
Such as fin condenser.It will be appreciated, however, that according to the present invention, the heat exchanger 30 of First Heat Exchanger 10 and second can also be it
The heat exchanger of its type, for example, in the heat exchanger 30 of First Heat Exchanger 10 and second, working fluid can veritably not experience
Evaporation process and condensation process.In this case it is possible, for example, to using water as working fluid, and sky of the invention
The purpose of adjusting system essentially consists in the reliable adjustment of refrigerating capacity.
In the example shown in the series of figures, the second heat exchanger 30 can include the heat exchanger of multiple stage second being connected in parallel.Per platform second
Heat exchanger is provided with corresponding control valve 34.When the unlatching of valve 34 is controlled, corresponding second heat exchanger 30 of operating fluid crosses, from
And the overall heat exchange area of the second heat exchanger 30 can be increased.When the closing of valve 34 is controlled, working fluid is prevented from flow through accordingly
The second heat exchanger 30, such that it is able to reduce the overall heat exchange area of the second heat exchanger 30.
In the example shown in the series of figures, the second heat exchanger 30 can include heat exchange blower fan 32.Include parallel connection in the second heat exchanger 30
Can be that corresponding heat exchange blower fan 32 is set per the heat exchanger of platform second in the case of the heat exchanger of multiple stage second of connection.Preferably,
Heat exchange blower fan 32 can be frequency conversion fan (it is of course also possible to other the hot ventilating fans to change rotating speed), thus, it is possible to logical
Cross the operating frequency of change heat exchange blower fan 32 and change the rotating speed of heat exchange blower fan 32.
Air-conditioning system AC can also include be arranged in closed circuit CL positioned at the upstream of First Heat Exchanger 10 and be located at
The pump (working fluid pump) 50 in the downstream of the second heat exchanger 30.Pump 50 can be used for being supplied to First Heat Exchanger 10 and change from second
The working fluid (refrigerant) of hot device and can be by controlling the working fluid of its rotating speed and controlled output to First Heat Exchanger 10
Flow.In preferred example, pump 50 is variable frequency pump.
In some instances, air-conditioning system AC can also include be arranged in closed circuit CL positioned at First Heat Exchanger 10
Upstream valve (such as magnetic valve) 60, for example, valve 60 may be located between pump 50 and First Heat Exchanger 10, especially, valve 60
The inlet tube that may be located at First Heat Exchanger 10 sentences the amount that control flows into the working fluid in First Heat Exchanger 10.
In the example shown in the series of figures, air-conditioning system AC can also include be arranged in closed circuit CL positioned at First Heat Exchanger
10 downstream and positioned at the valve (such as magnetic valve) 70 of the upstream of the second heat exchanger 30.From the workflow that First Heat Exchanger 10 flows out
Body is entered in the second heat exchanger 30 via valve 70.
According to the present invention, there is provided a kind of control method for controlling the operation of air-conditioning system AC.
Control method can include First Heat Exchanger detecting step and the second heat exchanger regulating step.
In First Heat Exchanger detecting step, the operational factor of First Heat Exchanger 10 is detected.For example, by First Heat Exchanger
In pressure sensor detection First Heat Exchanger 10 in working fluid pressure (such as evaporating pressure), pressure then will be detected again
Signal (data) feeds back to mainboard (control device).
In the second heat exchanger regulating step, the behaviour of the second heat exchanger 30 is adjusted according to the operational factor of First Heat Exchanger 10
Make, thus change the operational factor of First Heat Exchanger 10 to predefined parameter scope.
First Heat Exchanger detecting step can include：The pressure and/or temperature of detection First Heat Exchanger 10.That is,
The operational factor of First Heat Exchanger 10 can include the pressure and/or temperature of First Heat Exchanger 10.Here, First Heat Exchanger 10
Pressure and temperature can for example refer to the pressure and temperature of working fluid in First Heat Exchanger 10.
Especially, in the case where First Heat Exchanger 10 is evaporimeter, First Heat Exchanger detecting step can include：Detection
The evaporating pressure and/or evaporating temperature (evaporating pressure of working fluid and/or the evaporation in First Heat Exchanger 10 of First Heat Exchanger 10
Temperature).
In the case of the evaporating pressure of detection First Heat Exchanger 10, the second heat exchanger regulating step can include：When
When the detection evaporating pressure of one heat exchanger 10 is less than or equal to first threshold M (Kpa), reduce the heat exchange area of the second heat exchanger 30,
And the detection evaporating pressure for working as First Heat Exchanger 10 is when being more than or equal to Second Threshold P (Kpa) bigger than first threshold M, increase the
The heat exchange area of two heat exchangers 30.
In some instances, first threshold M can correspond to such value, when the evaporating pressure of First Heat Exchanger 10 is less than
First Heat Exchanger 10 during the value is it is possible that bursting by freezing is (for example, when First Heat Exchanger 10 is that case tube heat exchanger and package exchange heat
When having the water to be cooled down by working fluid in device, the evaporating pressure of First Heat Exchanger 10 is too small may to make water freeze and cause
Package bursting by freezing), Second Threshold P can correspond to such value, the air-conditioning when the evaporating pressure of First Heat Exchanger 10 is more than the value
System AC is it is possible that cooling is not enough.In this case, the predetermined ginseng of the operation of First Heat Exchanger as described above 10
Number scope can refer to：The evaporating pressure scope being between M and P of First Heat Exchanger 10.
In the case where the second heat exchanger 30 includes the heat exchanger of multiple stage second being connected in parallel, the second heat exchanger regulating step
Can include：When the detection evaporating pressure of First Heat Exchanger 10 is less than or equal to first threshold M, opening for the second heat exchanger 30 is reduced
Number of units (for example reducing one) is opened to reduce the heat exchange area of the second heat exchanger 30, when the detection vapor pres- sure of First Heat Exchanger 10
When power is more than or equal to Second Threshold P, the unlatching number of units (for example increasing by) for increasing by the second heat exchanger 30 is changed to increase second
The heat exchange area of hot device 30.
In the case where the second heat exchanger 30 includes heat exchange blower fan 32, the second heat exchanger regulating step can include：When
When the detection evaporating pressure of one heat exchanger 10 is less than or equal to first threshold M, reduce the rotating speed of heat exchange blower fan 32 (preferably by subtracting
The operating frequency of little heat exchange blower fan 32), and work as the detection evaporating pressure of First Heat Exchanger 10 more than or equal to bigger than first threshold M
During Second Threshold P, increase the rotating speed (preferably by the operating frequency of increase heat exchange blower fan 32) of heat exchange blower fan 32.
Here, it should be noted that the second heat exchanger regulating step can by dual-purpose change heat exchange area in the way of and change
The mode of heat exchange blower fan rotating speed.
Control method can also include pump regulating step：When the detection evaporating pressure of First Heat Exchanger 10 is less than or equal to first
During threshold value M, reduce the pumpability of pump 50, and when the detection evaporating pressure of First Heat Exchanger 10 is more than or equal to Second Threshold P,
The pumpability of increase pump 50.Here, although it is preferred that being used in combination the second heat exchanger regulating step and pump regulating step, so
And it is contemplated that pump regulating step can substitute the second heat exchanger regulating step individually to realize the fortune of First Heat Exchanger 10
Line parameter changes to predefined parameter scope.
Especially, in the case where pump 50 is variable frequency pump, pump regulating step can include：When the detection of First Heat Exchanger 10
When evaporating pressure is less than or equal to first threshold M, reduce the operating frequency of pump 50, and work as the detection evaporating pressure of First Heat Exchanger 10
During more than or equal to the Second Threshold P bigger than first threshold M, increase the operating frequency of pump 50.
In some instances, in the case where air-conditioning system AC is also included for the valve 60 for controlling flow, control method is also
Valve regulation step can be included：When the detection evaporating pressure of First Heat Exchanger 10 is less than or equal to first threshold M, reduce valve 60
Aperture, and when the detection evaporating pressure of First Heat Exchanger 10 is more than or equal to Second Threshold P, increase the aperture of valve 60.
In some instances, the second heat exchanger regulating step can also include：Exchange heat (being decreased or increased) second is changed
After the heat exchange area of device 30, when the detection evaporating pressure of First Heat Exchanger 10 changes (increase reduces) to more than first threshold
When M and the 3rd value N (Kpa) less than Second Threshold P, the heat exchange area for making the second heat exchanger 30 recovers to former heat exchange area (i.e.
Heat exchange area before change).Here, it should be noted that the reset mode is equally applicable to other regulating steps (for example
Pump regulating step and valve regulation step) and the second heat exchanger regulating step in change heat exchange blower fan rotating speed mode.
In air-conditioning system AC of the invention, (the especially heat exchange of the second heat exchanger is adjusted by the second heat exchanger
Area adjust) and pump regulation co-operating (wherein it is possible to the variable frequency adjustment for preferentially carrying out pump then auxiliarily carries out second change
The heat exchange area of hot device is adjusted, it is also possible to which the heat exchange area for preferentially carrying out the second heat exchanger adjusts the change for then auxiliarily carrying out pump
Frequency modulation section), can reliably and on a large scale adjust the refrigerating capacity of air-conditioning system AC.
Here, in addition it is also necessary to explanation, although above mainly with the evaporating pressure of First Heat Exchanger and corresponding threshold value
Control method of the invention is described as a example by relatively, but it is contemplated that in other examples, it is of the invention
Control method can also relatively performing based on other parameters (such as the temperature of First Heat Exchanger) its corresponding threshold value.
According to the present invention, a kind of air-conditioning system AC is also provided.Air-conditioning system AC can include that control device (can include master
Plate) CD.Control device CD can as described above control method controlling the operation of air-conditioning system AC.
According to the present invention, by detecting that then the operational factor of First Heat Exchanger is adjusted according to the operational factor of First Heat Exchanger
Save the operation of the second heat exchanger and/or adjust pumpability of pump etc., can solve the problem that (low temperature) natural cooling circulator
Case tube heat exchanger hypotony temperature is too low so as to the problem for package bursting by freezing occur during group operation, thereby guarantees that unit operation reliability
Property.On the other hand, by the heat exchange area of the second heat exchanger of change, the rotating speed of the heat exchange blower fan for changing the second heat exchanger, change
The aperture (the especially co-operatings of these modes) of the rotating speed of pump and/change valve, can be reliably achieved air-conditioning system with certainly
The reliable adjustment (such as adjusting between 10%-100%) of refrigerating capacity when so cooling down circular flow.Further aspect, due to adopting
With variable frequency pump, compared with using the scheme for determine frequency pump, can solve when natural cooling Cycle Unit is run determine frequency pump capacity without
Method adjusts and determines the normally opened normal pass of frequency pump and affect the reliability of pump while affecting the problem of client's comfortableness.
It should be noted that in this manual, whenever referring to " some examples ", " other examples ", " example of diagram "
Mean that the specific feature for the example description, structure or feature are included in the present invention extremely when " preferred example " etc.
In a few example.The appearance of these words different places in this manual is not necessarily all referring to same example.Additionally, working as pin
When specific feature, structure or feature are described to any example, it will be understood that those skilled in the art also can be all described
This feature, structure or feature are realized in other examples in example.
In addition, in present specification, term " including " or its any other variant are intended to the bag of nonexcludability
Contain, so that a series of process, method, article or equipment including key elements not only includes those key elements, but also can be with
Including other key elements being not expressly set out, or can also include for this process, method, article or equipment institute inherently
Key element.
Finally it should be noted that, it is clear that, above-mentioned embodiment/example is only intended to clearly illustrate the act made of the present invention
Example, and not limitation of the present invention.To those skilled in the art, it can also be made on the basis of the above description
The change or variation of its multi-form.There is no need to be exhaustive to all of embodiment/example.And thus drawn
Obvious change that Shen goes out or among changing still in protection scope of the present invention.
Claims (13)
1. one kind is used for the control method of the operation for controlling air-conditioning system (AC), and the air-conditioning system (AC) is described including being arranged on
First Heat Exchanger (10) and the second heat exchanger (30) in the closed circuit (CL) of air-conditioning system (AC), the closed circuit (CL)
In operating fluid crosses described in First Heat Exchanger (10) and absorb heat and flow through second heat exchanger (30) and discharge
Heat, it is characterised in that the control method is comprised the following steps：
First Heat Exchanger detecting step --- the operational factor of the detection First Heat Exchanger (10)；And
Second heat exchanger regulating step --- second heat exchanger is adjusted according to the operational factor of the First Heat Exchanger (10)
(30) operation, thus changes the operational factor of the First Heat Exchanger (10) to predefined parameter scope.
2. control method according to claim 1, it is characterised in that the First Heat Exchanger detecting step includes：Detection
The pressure and/or temperature of the First Heat Exchanger (10).
3. control method according to claim 2, it is characterised in that：
The First Heat Exchanger (10) is evaporimeter, and
The First Heat Exchanger detecting step includes：Detect the evaporating pressure and/or evaporating temperature of the First Heat Exchanger (10).
4. control method according to claim 3, it is characterised in that in the vapor pres- sure for detecting the First Heat Exchanger (10)
In the case of power, the second heat exchanger regulating step includes：When the detection evaporating pressure of the First Heat Exchanger (10) is less than
During equal to first threshold (M), reduce the heat exchange area of second heat exchanger (30), and work as the inspection of the First Heat Exchanger (10)
When surveying evaporating pressure more than or equal to the Second Threshold (P) bigger than the first threshold (M), increase second heat exchanger (30)
Heat exchange area.
5. control method according to claim 4, it is characterised in that：
Second heat exchanger (30) includes the heat exchanger of multiple stage second being connected in parallel, and
The second heat exchanger regulating step includes：When the detection evaporating pressure of the First Heat Exchanger (10) is less than or equal to described
During first threshold (M), the unlatching number of units of second heat exchanger (30) is reduced to reduce changing for the second heat exchanger (30)
Hot area, when the detection evaporating pressure of the First Heat Exchanger (10) is more than or equal to the Second Threshold (P), increases described the
The unlatching number of units of two heat exchangers (30) is to increase the heat exchange area of second heat exchanger (30).
6. control method according to claim 3, it is characterised in that：
Second heat exchanger (30) including heat exchange blower fan (32), and
In the case where the evaporating pressure of the First Heat Exchanger (10) is detected, the second heat exchanger regulating step includes：When
When the detection evaporating pressure of the First Heat Exchanger (10) is less than or equal to first threshold (M), reduce the heat exchange blower fan (32)
Rotating speed, and the detection evaporating pressure for working as the First Heat Exchanger (10) is more than or equal to second threshold bigger than the first threshold (M)
During value (P), increase the rotating speed of the heat exchange blower fan (32).
7. the control method according to any one of claim 4 to 6, it is characterised in that the first threshold (M) corresponds to
Such value, when the evaporating pressure of the First Heat Exchanger (10) is less than the value, there is bursting by freezing in the First Heat Exchanger (10),
The Second Threshold (P) corresponds to such value, the sky when the evaporating pressure of the First Heat Exchanger (10) is more than the value
It is not enough that cooling occurs in adjusting system (AC).
8. the control method according to any one of claim 4 to 6, it is characterised in that：
The air-conditioning system (AC) also include being arranged in the closed circuit (CL) positioned at the First Heat Exchanger (10)
Upstream and positioned at the pump (50) in the downstream of second heat exchanger (30), and
The control method also includes pump regulating step --- when the detection evaporating pressure of the First Heat Exchanger (10) is less than or equal to
During first threshold (M), reduce the pumpability of the pump (50), and work as the detection vapor pres- sure of the First Heat Exchanger (10)
When power is more than or equal to the Second Threshold (P), increase the pumpability of the pump (50).
9. control method according to claim 8, it is characterised in that：
The pump (50) is variable frequency pump, and
The pump regulating step includes：When the detection evaporating pressure of the First Heat Exchanger (10) is less than or equal to first threshold (M)
When, reduce the operating frequency of the pump (50), and the detection evaporating pressure for working as the First Heat Exchanger (10) is more than or equal to than institute
When stating big Second Threshold (P) of first threshold (M), increase the operating frequency of the pump (50).
10. the control method according to any one of claim 4 to 6, it is characterised in that：
The air-conditioning system (AC) also include being arranged in the closed circuit (CL) positioned at the First Heat Exchanger (10)
The valve (60) of upstream, and
The control method also includes valve regulation step --- when the detection evaporating pressure of the First Heat Exchanger (10) is less than or equal to
During first threshold (M), reduce the aperture of the valve (60), and work as the detection evaporating pressure of the First Heat Exchanger (10) more than etc.
When the Second Threshold (P), increase the aperture of the valve (60).
11. control methods according to any one of claim 4 to 6, it is characterised in that second heat exchanger adjusts step
Suddenly include：After the heat exchange area for changing second heat exchanger (30), when the detection of the First Heat Exchanger (10) is evaporated
When pressure change is extremely more than the first threshold (M) and is worth (N) less than the 3rd of the Second Threshold (P) the, described second is set to change
The heat exchange area of hot device (30) recovers to former heat exchange area.
12. a kind of air-conditioning systems (AC), it is characterised in that the air-conditioning system (AC) includes control device (CD), the control
Device (CD) controls the fortune of the air-conditioning system (AC) according to the control method as any one of claim 1 to 11
OK.
13. air-conditioning systems (AC) according to claim 12, it is characterised in that the air-conditioning system (AC) is wind-cooled cold-water
Air-conditioner set, the closed circuit (CL) is natural cooling closed circuit.
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| CN201610973043.7A CN106594964B (en) | 2016-11-07 | 2016-11-07 | For controlling the control method and air-conditioning system of the operation of air-conditioning system |
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| CN201610973043.7A CN106594964B (en) | 2016-11-07 | 2016-11-07 | For controlling the control method and air-conditioning system of the operation of air-conditioning system |
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| CN106594964B CN106594964B (en) | 2019-01-29 |
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