CN104729009B - Air conditioning control method and device - Google Patents
Air conditioning control method and device Download PDFInfo
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- CN104729009B CN104729009B CN201310726582.7A CN201310726582A CN104729009B CN 104729009 B CN104729009 B CN 104729009B CN 201310726582 A CN201310726582 A CN 201310726582A CN 104729009 B CN104729009 B CN 104729009B
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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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of air conditioning control method and device.Wherein, the method includes：The first temperature difference between first supply water temperature and the first return water temperature of the current air-conditioner set of detection；Judge the first difference between the first temperature difference and predetermined set temperature whether more than the first predetermined threshold；If the first difference is more than the first predetermined threshold, then adjust the frequency of the chilled water pump in air-conditioner set so that the second difference between second temperature difference and predetermined set temperature between second supply water temperature and the second return water temperature of the air-conditioner set under the frequency of chilled water pump after the adjustment is less than or equal to the first predetermined threshold.The present invention is solved and become in the prior art the unstable technical problem of system loading caused by water temperature or flow control air-conditioning, has reached the stabilization for maintaining system loading, it is ensured that the refrigerating capacity and moisture-retaining capacity of end, and reduce the technique effect of system energy consumption.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of air conditioning control method and device.
Background technology
Traditional HVAC group control system supplies the parameters such as the temperature or pressure difference of return main typically by detection freezing,
Load Regulation is carried out to HVAC system, when air-conditioning system is a variable flow system, the change of general one-sided variable flow system
Amount flow control, seldom considers the water temperature control of variable flow system；
When using vari- able flow control, the frequency of freezing variable frequency pump is reduced, its power can significantly decline, chilled water moral
The refrigerating capacity of unit can decline after flow-reduction, and power can also decline, the COP of unit（Coefficient of
Performance, observable index）It is almost unchanged.Therefore it is the energy consumption for having saved freezing variable frequency pump using vari- able flow control, it is cold
The COP of water dispenser group fails to improve.
Additionally, freezing variable flow system change coolant controlled principle be by improve the leaving water temperature of unit chilled water come
Improve the COP of unit.But, freezing leaving water temperature can reduce the refrigeration and dehumidifying effect of air conditioning terminal, influence after improving
The comfort level of end.
Therefore, unit became water temperature and freezing variable frequency pump vari- able flow control not at that time, and the load of air-conditioning system can be unstable,
And then cause that the energy consumption of system increases, and the refrigeration and dehumidifying effect of air conditioning terminal can be also reduced, so, can both influence client
Comfort level, can also increase the power of end.
For above-mentioned problem, effective solution is not yet proposed at present.
The content of the invention
The embodiment of the invention provides a kind of air conditioning control method and device, with least solve to become in the prior art water temperature or
The unstable technical problem of system loading caused by flow control air-conditioning.
A kind of one side according to embodiments of the present invention, there is provided air conditioning control method, including：The current air-conditioning of detection
The first temperature difference between first supply water temperature and the first return water temperature of unit；Judge the first temperature difference and predetermined set temperature
Between the first difference whether be more than the first predetermined threshold；If the first difference is more than the first predetermined threshold, air-conditioner set is adjusted
In chilled water pump frequency so that the second supply water temperature of the air-conditioner set under the frequency of chilled water pump after the adjustment and
The second difference between second temperature difference and predetermined set temperature between two return water temperatures is less than or equal to the first predetermined threshold.
Alternatively, the frequency of the chilled water pump in adjustment air-conditioner set includes：If the first difference more than the first predetermined threshold,
And first temperature difference be more than the second predetermined threshold, then improve chilled water pump frequency, wherein, the second predetermined threshold be predetermined set
Temperature and the first predetermined threshold sum；If the first difference is more than the first predetermined threshold and the first temperature difference is less than the 3rd predetermined threshold
Value, then reduce the frequency of chilled water pump, wherein, the 3rd predetermined threshold is the difference of predetermined set temperature and the first predetermined threshold.
Alternatively, whether the first difference between the first temperature difference and predetermined set temperature is being judged more than the first predetermined threshold
After value, also include：If the first difference is less than or equal to the first predetermined threshold, every returning for predetermined cycle detection air-conditioner set
Coolant-temperature gage；If the 3rd return water temperature of the air-conditioner set detected on current period is relatively gone up the freezing detected on a cycle and is returned
The rate of descent of the 4th return water temperature of water pipe more than the first predetermined rate of descent threshold value or less than the second predetermined rate of descent threshold value, then
Supply water temperature in adjusting air-conditioner set on current period, wherein, the first predetermined rate of descent threshold value is predetermined more than second to be declined
Rate threshold value；If the 3rd return water temperature compared with the 4th return water temperature rate of descent less than or equal to the first predetermined rate of descent threshold value and more than etc.
In the second predetermined rate of descent threshold value, then the supply water temperature on current period in air-conditioner set is maintained.
Alternatively, the supply water temperature in adjusting air-conditioner set on current period includes：If rate of descent makes a reservation for more than first
Rate of descent threshold value, the then supply water temperature in improving air-conditioner set on current period；If rate of descent is less than the second predetermined rate of descent
Threshold value, the then supply water temperature in reducing air-conditioner set on current period.
Alternatively, the supply water temperature in improving air-conditioner set on current period includes：By air conditioner on current period
Supply water temperature in group increases by the 4th predetermined threshold；Supply water temperature in reducing air-conditioner set on current period includes：Working as
By supply water temperature the 5th predetermined threshold of reduction in air-conditioner set on the preceding cycle.
Alternatively, the first predetermined threshold is 0 or more than 0.
Another aspect according to embodiments of the present invention, additionally provides a kind of air conditioning control device, including：First detection is single
Unit, for detecting the first temperature difference between the first supply water temperature of current air-conditioner set and the first return water temperature；Judge single
Unit, for judging the first difference between the first temperature difference and predetermined set temperature whether more than the first predetermined threshold；First adjusts
Whole unit, for when the first difference is more than the first predetermined threshold, adjusting the frequency of the chilled water pump in air-conditioner set so that
Second temperature between second supply water temperature and the second return water temperature of the air-conditioner set under the frequency of the chilled water pump after adjustment
The second difference between difference and predetermined set temperature is less than or equal to the first predetermined threshold.
Alternatively, the first adjustment unit includes：First adjusting module, for the first difference more than the first predetermined threshold,
And first temperature difference be more than the second predetermined threshold when, improve chilled water pump frequency, wherein, the second predetermined threshold be predetermined set
Temperature and the first predetermined threshold sum；Second adjusting module, for being more than the first predetermined threshold and the first temperature in the first difference
Difference is less than the 3rd predetermined threshold, reduces the frequency of chilled water pump, wherein, the 3rd predetermined threshold is that predetermined set temperature is pre- with first
Determine the difference of threshold value.
Alternatively, the device also includes：Second detection unit, for being less than or equal to the first predetermined threshold in the first difference
When, then every the return water temperature of predetermined cycle detection air-conditioner set；Second adjustment unit, for being detected on current period
Air-conditioner set the 3rd return water temperature relatively go up detected on a cycle freezing return pipe the 4th return water temperature rate of descent
During more than the first predetermined rate of descent threshold value or less than the second predetermined rate of descent threshold value, in adjusting air-conditioner set on current period
Supply water temperature, wherein, the first predetermined rate of descent threshold value be more than the second predetermined rate of descent threshold value；Maintenance unit, for the 3rd
Return water temperature is fixed in advance compared with the rate of descent of the 4th return water temperature less than or equal to the first predetermined rate of descent threshold value and more than or equal to second
Drop rate threshold value, then maintain the supply water temperature on current period in air-conditioner set.
Alternatively, the second adjustment unit includes：3rd adjusting module, for being more than the first predetermined rate of descent threshold in rate of descent
During value, the supply water temperature in improving air-conditioner set on current period；4th adjusting module, for pre- less than second in rate of descent
When determining rate of descent threshold value, the supply water temperature in reducing air-conditioner set on current period.
In embodiments of the present invention, by the way of to confession-backwater temperature difference control, by by supply water temperature and return water temperature
Between temperature difference and predetermined threshold be compared judgement, when preselected threshold condition is unsatisfactory for, frequency to water supply pump and cold
The supply water temperature of water dispenser group is adjusted, and has reached the purpose of the load of systems stabilisation, it is achieved thereby that ensureing the refrigeration of end
Ability and moisture-retaining capacity, and the technique effect of system energy consumption is reduced, and then solve change water temperature in the prior art or flow control
The unstable technical problem of system loading caused by air-conditioning.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of a kind of optional air conditioning control method according to embodiments of the present invention；
Fig. 2 is the flow chart of the optional air conditioning control method of another kind according to embodiments of the present invention；
Fig. 3 is the flow chart of another optional air conditioning control method according to embodiments of the present invention；
Fig. 4 is the schematic diagram of a kind of optional air conditioning control device according to embodiments of the present invention；
Fig. 5 is the schematic diagram of the optional air conditioning control device of another kind according to embodiments of the present invention；
Fig. 6 is the schematic diagram of another optional air conditioning control device according to embodiments of the present invention；
Fig. 7 is the schematic diagram of another optional air conditioning control device according to embodiments of the present invention；And
Fig. 8 is the schematic diagram of another optional air conditioning control device according to embodiments of the present invention.
Specific embodiment
First, the part noun or term for occurring during being described to the embodiment of the present invention are applied to following solution
Release：
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model of present invention protection
Enclose.
It should be noted that term " first ", " in description and claims of this specification and above-mentioned accompanying drawing
Two " it is etc. for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except illustrating herein or
Order beyond those of description is implemented.Additionally, term " comprising " and " having " and their any deformation, it is intended that cover
Lid is non-exclusive to be included, for example, the process, method, system, product or the equipment that contain series of steps or unit are not necessarily limited to
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or other intrinsic steps of equipment or unit.
Embodiment 1
According to embodiments of the present invention, there is provided a kind of air conditioning control method, as shown in figure 1, air-conditioning control in the present embodiment
Method processed includes：
S102, detects the first temperature difference between first supply water temperature and the first return water temperature of current air-conditioner set；
Alternatively, air conditioning control method can be, but not limited to be applied to the freezing side of cold source system in the present embodiment, inspection
Survey the first supply water temperature T of the freezing house steward of current air-conditioner setFor 1With the first return water temperature TReturn 1The first temperature difference △ T1。
Alternatively, detection mode in the present embodiment includes at least one of：Real-time detection, holds every predetermined period
Row one-time detection.
For example, by taking air-conditioner set A as an example, every cycle T0, detect once the first of the freezing house steward of current air-conditioner set
Supply water temperature TFor 1With the first return water temperature TReturn 1The first temperature difference △ T1。
Whether S104, judge the first difference between the first temperature difference and predetermined set temperature more than the first predetermined threshold；
Alternatively, default setting temperature in the present embodiment can be but be not limited to：5℃.It should be noted that when cold
When jelly supply backwater temperature difference is set to 5 DEG C, the load of air-conditioning system can be more stable, does not also interfere with the comfort level of client.
Alternatively, the first predetermined threshold is included but is not limited in the present embodiment：0th, more than 0.For example, the first predetermined threshold
It can be 0.5 DEG C, or 0 DEG C.That is, the first temperature difference △ T1With predetermined set temperature, such as 5 DEG C, Ke Yixiang
Deng the application is not limited this.
For example, being judged as "No" through step S304 with reference to shown in Fig. 3, then step S306 is performed, by taking air-conditioner set A as an example,
The first temperature difference △ T that one-time detection is obtained can be judged every the t1 time periods1With predetermined set temperature（For example, predetermined set
Temperature is 5 DEG C）Between the first difference, i.e. △ T1- 5, if more than the first predetermined threshold, for example, the first predetermined threshold is 0.5
℃。
S106, if the first difference is more than the first predetermined threshold, the frequency of the chilled water pump in adjustment air-conditioner set so that
The second temperature between second supply water temperature and the second return water temperature of the air-conditioner set under the frequency of chilled water pump after the adjustment
The second difference between degree difference and predetermined set temperature is less than or equal to the first predetermined threshold.
For example, by taking air-conditioner set A as an example, if the first difference（For example, the first difference is △ T1-5）More than the first predetermined threshold
Value（For example, the first predetermined threshold is 0.5 DEG C）, then the frequency aHz of the chilled water pump in air-conditioner set is adjusted so that after the adjustment
Chilled water pump frequency under air-conditioner set the second supply water temperature TFor 2With the second return water temperature TReturnSecond temperature between 2
Difference △ T2With predetermined set temperature（For example, 5 DEG C）Between the second difference, i.e. △ T2- 5, less than or equal to the first predetermined threshold（Example
Such as, the first predetermined threshold is 0.5 DEG C）.
The embodiment provided by the application, by the supply backwater temperature difference of air-conditioner set and the predetermined set temperature that will detect
The difference of degree is compared with the first predetermined threshold, and the situation more than the first predetermined threshold is adjusted, and adjusts air-conditioner set
In chilled water pump frequency so that supply backwater temperature difference is less than or equal to the first preselected threshold condition, and then realizes stabilization air-conditioning system
The load of system, and realize reducing the energy consumption of unit and chilled water pump.
As a kind of optional scheme, as shown in Fig. 2 the frequency of the chilled water pump in adjustment air-conditioner set includes：
S202, if the first difference is more than the first predetermined threshold and the first temperature difference is more than the second predetermined threshold, improves cold
Freeze the frequency of water pump；
Alternatively, the second predetermined threshold is predetermined set temperature and the first predetermined threshold sum in the present embodiment, for example,
Predetermined set temperature is 5 DEG C, and the first predetermined threshold is 0.5 DEG C, then the second predetermined threshold is 5.5 DEG C.
For example, by taking air-conditioner set A as an example, the step S310 to S320 with reference to shown in Fig. 3, if the first difference（For example, first is poor
It is △ T to be worth1-5）More than the first predetermined threshold（For example, the first predetermined threshold is 0.5 DEG C）, and △ T1More than the second predetermined threshold
（For example, the second predetermined threshold is 5.5 DEG C）, then the frequency of chilled water pump is improved, realize maintaining the confession backwater temperature after adjustment with this
Difference be less than or equal to 0.5 DEG C of the first predetermined threshold, and then systems stabilisation load.
S204, if the first difference is more than the first predetermined threshold and the first temperature difference is less than the 3rd predetermined threshold, reduces cold
Freeze the frequency of water pump；
Alternatively, the 3rd predetermined threshold is the difference of predetermined set temperature and the first predetermined threshold in the present embodiment.For example,
Predetermined set temperature is 5 DEG C, and the first predetermined threshold is 0.5 DEG C, then the second predetermined threshold is 4.5 DEG C.
For example, by taking air-conditioner set A as an example, the step S310 to S320 with reference to shown in Fig. 3, if the first difference（For example, first is poor
It is △ T to be worth1-5）More than the first predetermined threshold（For example, the first predetermined threshold is 0.5 DEG C）, and △ T1Less than the 3rd predetermined threshold
（For example, the 3rd predetermined threshold is 4.5 DEG C）, then the frequency of chilled water pump is reduced, realize maintaining the confession backwater temperature after adjustment with this
Difference be less than or equal to 0.5 DEG C of the first predetermined threshold, and then systems stabilisation load.
By the application provide embodiment, by the chilled water pump to the air-conditioner set more than the first predetermined threshold do into
One step judges, judges whether supply backwater temperature difference meets preselected threshold condition, and then draw the frequency of chilled water pump is improved
Or adjustment is reduced, so as to reach the purpose of the load of systems stabilisation, and then realize reducing the energy consumption of unit and chilled water pump.
As a kind of optional scheme, as shown in figure 4, in step S104, judging the first temperature difference and predetermined set temperature
Between the first difference whether more than after the first predetermined threshold, also include：
S402, if the first difference is less than or equal to the first predetermined threshold, every returning for predetermined cycle detection air-conditioner set
Coolant-temperature gage；
For example, being judged as "Yes" through step S304 with reference to shown in Fig. 3, then step S308 is performed, by taking air-conditioner set A as an example,
When the first difference（First difference）Less than or equal to the first predetermined threshold（For example, the first predetermined threshold is 0.5 DEG C）, then every predetermined
Cycle, such as t2, detect a return water temperature T for air-conditioner setReturn。
S404, if the 3rd return water temperature of the air-conditioner set detected on current period relatively goes up what is detected on a cycle
The rate of descent of the 4th return water temperature of return pipe is freezed more than the first predetermined rate of descent threshold value or less than the second predetermined rate of descent
Threshold value, the then supply water temperature in adjusting air-conditioner set on current period；
Optionally, the first predetermined rate of descent threshold value in the present embodiment（For example, X）More than the second predetermined rate of descent threshold value
（For example, Y）.
For example, with reference to shown in Fig. 3 step S322 to S324, after t2 cycle time delays, the air-conditioning detected on current period
3rd return water temperature T of unitReturn 3Relatively go up the 4th return water temperature T of the freezing return pipe detected on a cycleReturn 4Rate of descent be
d(TReturn 4-TReturn 3)/dt, if judgement draws rate of descent d (TReturn 4-TReturn 3)/dt is more than the first predetermined rate of descent threshold value（For example, X）, or
Less than the second predetermined rate of descent threshold value（For example, Y）, then the supply water temperature T in adjusting air-conditioner set on current periodFor。
S406, if the 3rd return water temperature compared with the 4th return water temperature rate of descent less than or equal to the first predetermined rate of descent threshold value and
More than or equal to the second predetermined rate of descent threshold value, then the supply water temperature on current period in air-conditioner set is maintained.
For example, with reference to shown in Fig. 3, through t2 cycle time delays after, through the air-conditioning that step S326 judges to be detected on current period
3rd return water temperature T of unitReturn 3Relatively go up the 4th return water temperature T of the freezing return pipe detected on a cycleReturn 4Rate of descent be
d(TReturn 4-TReturn 3)/dt, if judgement draws rate of descent d (TReturn 4-TReturn 3)/dt is less than or equal to the first predetermined rate of descent threshold value（For example, X）,
And more than the second predetermined rate of descent threshold value（For example, Y）, then the water supply in air-conditioner set on step S332 maintenance current periods is performed
Temperature TFor。
The embodiment provided by the application, the situation to supply backwater temperature difference less than or equal to the first predetermined threshold is carried out thin
Change and judge, judge whether return water temperature rate of descent meets preselected threshold condition, and then to the water supply temperature of current period air-conditioner set
The fine setting that degree is adjusted or maintained, it is to avoid the improper air-conditioning for causing of FREQUENCY CONTROL of water temperature and chilled water pump to air-conditioner set
The unstable problem of the load of system, and ensure that the refrigerating capacity and dehumidifying effect of air conditioning terminal.
Used as a kind of optional scheme, the supply water temperature in adjusting air-conditioner set on current period includes：
S1, if rate of descent is more than the first predetermined rate of descent threshold value, the water supply in improving air-conditioner set on current period
Temperature；
For example, with reference to shown in Fig. 3 step S328, through t2 cycle time delays after, the air-conditioner set detected on current period
3rd return water temperature TReturn 3Relatively go up the 4th return water temperature T of the freezing return pipe detected on a cycleReturn 4Rate of descent be d (TReturn 4-
TReturn 3)/dt, if judgement draws rate of descent d (TReturn 4-TReturn 3)/dt is more than the first predetermined rate of descent threshold value（For example, X）, then in current week
The supply water temperature T in air-conditioner set is improved on phaseFor, and then systems stabilisation load.
S2, if rate of descent is less than the second predetermined rate of descent threshold value, the water supply in reducing air-conditioner set on current period
Temperature.
For example, with reference to shown in Fig. 3 step S330, through t2 cycle time delays after, the air-conditioner set detected on current period
3rd return water temperature TReturn 3Relatively go up the 4th return water temperature T of the freezing return pipe detected on a cycleReturn 4Rate of descent be d (TReturn 4-
TReturn 3)/dt, if judgement draws rate of descent d (TReturn 4-TReturn 3)/dt is less than the second predetermined rate of descent threshold value（For example, Y）, then in current week
The supply water temperature T in air-conditioner set is reduced on phaseFor, and then systems stabilisation load.
By the embodiment provided the application, to being more than the first predetermined rate of descent threshold value, or rate of descent based on rate of descent
Less than two kinds of adjustment of situation of the second predetermined rate of descent threshold value, make and determining whether, and then realize the standard to supply water temperature
Really adjustment, so as to realize stablizing the load of air-conditioning system, and ensure that the refrigerating capacity and dehumidifying effect of air conditioning terminal.
Used as a kind of optional scheme, the supply water temperature in improving air-conditioner set on current period includes：In current week
The supply water temperature in air-conditioner set is increased into by the 4th predetermined threshold on phase；
For example, after multilevel iudge, rate of descent is more than the first predetermined rate of descent threshold value（For example, X）, it is necessary in current period
Supply water temperature T in upper raising air-conditioner setFor, then can be on current period by the supply water temperature T in air-conditioner setForIncrease by the
Four predetermined thresholds（For example, 0.3 DEG C）.
Supply water temperature in reducing air-conditioner set on current period includes：By the confession in air-conditioner set on current period
Coolant-temperature gage the 5th predetermined threshold of reduction.
For example, after multilevel iudge, rate of descent is less than the first predetermined rate of descent threshold value（For example, Y）, it is necessary in current period
Supply water temperature T in upper reduction air-conditioner setFor, then can be on current period by the supply water temperature T in air-conditioner setForReduce by the
Five predetermined thresholds（For example, 0.5 DEG C）.
Alternatively, the amplitude in the present embodiment to raising or the reduction adjustment of the supply water temperature of air-conditioner set might not
It is equal.
By the embodiment provided the application, the amplitude to the adjustment of supply water temperature is not necessarily equal, and then realizes
Accurate adjustment to supply water temperature, so as to realize stablizing the load of air-conditioning system, and ensure that air conditioning terminal refrigerating capacity and
Dehumidifying effect.
It should be noted that for foregoing each method embodiment, in order to be briefly described, therefore it is all expressed as a series of
Combination of actions, but those skilled in the art should know, the present invention not by described by sequence of movement limited because
According to the present invention, some steps can sequentially or simultaneously be carried out using other.Secondly, those skilled in the art should also know
Know, embodiment described in this description belongs to preferred embodiment, involved action and module is not necessarily of the invention
It is necessary.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation
The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but a lot
In the case of the former be more preferably implementation method.Based on such understanding, technical scheme is substantially in other words to existing
The part that technology contributes can be embodied in the form of software product, and computer software product storage is in a storage
Medium（Such as ROM/RAM, magnetic disc, CD）In, including some instructions are used to so that a station terminal equipment（Can be mobile phone, calculate
Machine, server, or network equipment etc.）Perform the method described in each embodiment of the invention.
Embodiment 2
According to embodiments of the present invention, a kind of air conditioning control device for implementing above-mentioned air conditioning control method is additionally provided,
As shown in figure 5, the air conditioning control device in the present embodiment includes：
1）First detection unit 502, the first supply water temperature and the first return water temperature for detecting current air-conditioner set
Between the first temperature difference；
Alternatively, air conditioning control method can be, but not limited to be applied to the freezing side of cold source system in the present embodiment, inspection
Survey the first supply water temperature T of the freezing house steward of current air-conditioner setFor 1With the first return water temperature TReturn 1The first temperature difference △ T1。
Alternatively, detection mode in the present embodiment includes at least one of：Real-time detection, holds every predetermined period
Row one-time detection.
For example, by taking air-conditioner set A as an example, every cycle T0, detect once the first of the freezing house steward of current air-conditioner set
Supply water temperature TFor 1With the first return water temperature TReturn 1The first temperature difference △ T1。
2）Whether judging unit 504, the first difference for judging between the first temperature difference and predetermined set temperature is more than
First predetermined threshold；
Alternatively, default setting temperature in the present embodiment can be but be not limited to：5℃.It should be noted that when cold
When jelly supply backwater temperature difference is set to 5 DEG C, the load of air-conditioning system can be more stable, does not also interfere with the comfort level of client.
Alternatively, the first predetermined threshold is included but is not limited in the present embodiment：0th, more than 0.For example, the first predetermined threshold
It can be 0.5 DEG C, or 0 DEG C.That is, the first temperature difference △ T1With predetermined set temperature, such as 5 DEG C, Ke Yixiang
Deng the application is not limited this.
For example, with reference to shown in Fig. 3, by taking air-conditioner set A as an example, can judge what one-time detection was obtained every the t1 time periods
First temperature difference △ T1With predetermined set temperature（For example, predetermined set temperature is 5 DEG C）Between the first difference, i.e. △ T1- 5, be
It is no to be more than the first predetermined threshold, for example, the first predetermined threshold is 0.5 DEG C.
3）First adjustment unit 506, it is cold in adjustment air-conditioner set for when the first difference is more than the first predetermined threshold
Freeze the frequency of water pump so that second supply water temperature and the second backwater of the air-conditioner set under the frequency of chilled water pump after the adjustment
The second difference between second temperature difference and predetermined set temperature between temperature is less than or equal to the first predetermined threshold.
For example, by taking air-conditioner set A as an example, if the first difference（For example, the first difference is △ T1-5）More than the first predetermined threshold
Value（For example, the first predetermined threshold is 0.5 DEG C）, then the frequency aHz of the chilled water pump in air-conditioner set is adjusted so that after the adjustment
Chilled water pump frequency under air-conditioner set the second supply water temperature TFor 2With the second return water temperature TReturn 2Between second temperature it is poor
△T2With predetermined set temperature（For example, 5 DEG C）Between the second difference, i.e. △ T2- 5, less than or equal to the first predetermined threshold（For example,
First predetermined threshold is 0.5 DEG C）.
The embodiment provided by the application, by the supply backwater temperature difference of air-conditioner set and the predetermined set temperature that will detect
The difference of degree is compared with the first predetermined threshold, and the situation more than the first predetermined threshold is adjusted, and adjusts air-conditioner set
In chilled water pump frequency so that supply backwater temperature difference is less than or equal to the first preselected threshold condition, and then realizes stabilization air-conditioning system
The load of system, and realize reducing the energy consumption of unit and chilled water pump.
As a kind of optional scheme, as shown in fig. 6, the first adjustment unit 506 includes：
1）First adjusting module 602, for being more than second more than the first predetermined threshold and the first temperature difference in the first difference
During predetermined threshold, improve the frequency of chilled water pump, wherein, the second predetermined threshold be predetermined set temperature and the first predetermined threshold it
With；
Alternatively, the second predetermined threshold is predetermined set temperature and the first predetermined threshold sum in the present embodiment, for example,
Predetermined set temperature is 5 DEG C, and the first predetermined threshold is 0.5 DEG C, then the second predetermined threshold is 5.5 DEG C.
For example, by taking air-conditioner set A as an example, if the first difference（For example, the first difference is △ T1-5）More than the first predetermined threshold
Value（For example, the first predetermined threshold is 0.5 DEG C）, and △ T1More than the second predetermined threshold（For example, the second predetermined threshold is 5.5
℃）, then the frequency of chilled water pump is improved, realize maintaining the supply backwater temperature difference after adjustment to be less than or equal to the first predetermined threshold with this
0.5 DEG C, so systems stabilisation load.
2）Second adjusting module 604, for being less than the 3rd more than the first predetermined threshold and the first temperature difference in the first difference
Predetermined threshold, reduces the frequency of chilled water pump, wherein, the 3rd predetermined threshold be predetermined set temperature and the first predetermined threshold it
Difference.
Alternatively, the 3rd predetermined threshold is the difference of predetermined set temperature and the first predetermined threshold in the present embodiment.For example,
Predetermined set temperature is 5 DEG C, and the first predetermined threshold is 0.5 DEG C, then the second predetermined threshold is 4.5 DEG C.
For example, by taking air-conditioner set A as an example, if the first difference（For example, the first difference is △ T1-5）More than the first predetermined threshold
Value（For example, the first predetermined threshold is 0.5 DEG C）, and △ T1Less than the 3rd predetermined threshold（For example, the 3rd predetermined threshold is 4.5
℃）, then the frequency of chilled water pump is reduced, realize maintaining the supply backwater temperature difference after adjustment to be less than or equal to the first predetermined threshold with this
0.5 DEG C, so systems stabilisation load.
By the application provide embodiment, by the chilled water pump to the air-conditioner set more than the first predetermined threshold do into
One step judges, judges whether supply backwater temperature difference meets preselected threshold condition, and then draw the frequency of chilled water pump is improved
Or adjustment is reduced, so as to reach the purpose of the load of systems stabilisation, and then realize reducing the energy consumption of unit and chilled water pump.
As a kind of optional scheme, as shown in fig. 7, the air conditioning control device in the present embodiment also includes：
1）Second detection unit 702, for when the first difference is less than or equal to the first predetermined threshold, then every predetermined week
Phase detects the return water temperature of air-conditioner set；
For example, with reference to shown in Fig. 3, by taking air-conditioner set A as an example, when the first difference（First difference）It is predetermined less than or equal to first
Threshold value（For example, the first predetermined threshold is 0.5 DEG C）, then every predetermined period, such as t2 detects a backwater temperature for air-conditioner set
Degree TReturn。
2）Second adjustment unit 704, for the 3rd return water temperature of air-conditioner set that is detected on current period relatively
The rate of descent of the 4th return water temperature of the freezing return pipe detected on one cycle is more than the first predetermined rate of descent threshold value or small
When the second predetermined rate of descent threshold value, the supply water temperature in adjusting air-conditioner set on current period, wherein, the first predetermined decline
Rate threshold value is more than the second predetermined rate of descent threshold value；
For example, with reference to shown in Fig. 3, by taking air-conditioner set A as an example, when the first difference（First difference）It is predetermined less than or equal to first
Threshold value（For example, the first predetermined threshold is 0.5 DEG C）, then every predetermined period, such as t2 detects a backwater temperature for air-conditioner set
Degree TReturn。
3）Maintenance unit 706, for pre- less than or equal to first compared with the rate of descent of the 4th return water temperature in the 3rd return water temperature
Determine rate of descent threshold value and more than or equal to the second predetermined rate of descent threshold value, then maintain the water supply temperature on current period in air-conditioner set
Degree.
For example, with reference to shown in Fig. 3, after t2 cycle time delays, the 3rd backwater of the air-conditioner set detected on current period
Temperature TReturn 3Relatively go up the 4th return water temperature T of the freezing return pipe detected on a cycleReturn 4Rate of descent be d (TReturn 4-TReturn 3)/dt,
If judgement draws rate of descent d (TReturn 4-TReturn 3)/dt is less than or equal to the first predetermined rate of descent threshold value（For example, X）, and it is predetermined more than second
Rate of descent threshold value（For example, Y）, then the supply water temperature T on current period in air-conditioner set is maintainedFor。
The embodiment provided by the application, the situation to supply backwater temperature difference less than or equal to the first predetermined threshold is carried out thin
Change and judge, judge whether return water temperature rate of descent meets preselected threshold condition, and then to the water supply temperature of current period air-conditioner set
The fine setting that degree is adjusted or maintained, it is to avoid the improper air-conditioning for causing of FREQUENCY CONTROL of water temperature and chilled water pump to air-conditioner set
The unstable problem of the load of system, and ensure that the refrigerating capacity and dehumidifying effect of air conditioning terminal.
As a kind of optional scheme, as shown in figure 8, the second adjustment unit 704 includes：
1）3rd adjusting module 802, for when rate of descent is more than the first predetermined rate of descent threshold value, above being carried in current period
Supply water temperature in air-conditioner set high；
For example, with reference to shown in Fig. 3, after t2 cycle time delays, the 3rd backwater of the air-conditioner set detected on current period
Temperature TReturn 3Relatively go up the 4th return water temperature T of the freezing return pipe detected on a cycleReturn 4Rate of descent be d (TReturn 4-TReturn 3)/dt,
If judgement draws rate of descent d (TReturn 4-TReturn 3)/dt is more than the first predetermined rate of descent threshold value（For example, X）, then improved on current period
Supply water temperature T in air-conditioner setFor, and then systems stabilisation load.
2）4th adjusting module 804, for when rate of descent is less than the second predetermined rate of descent threshold value, being dropped on current period
Supply water temperature in low air-conditioner set.
For example, with reference to shown in Fig. 3, after t2 cycle time delays, the 3rd backwater of the air-conditioner set detected on current period
Temperature TReturn 3Relatively go up the 4th return water temperature T of the freezing return pipe detected on a cycleReturn 4Rate of descent be d (TReturn 4-TReturn 3)/dt,
If judgement draws rate of descent d (TReturn 4-TReturn 3)/dt is less than the second predetermined rate of descent threshold value（For example, Y）, then reduced on current period
Supply water temperature T in air-conditioner setFor, and then systems stabilisation load.
By the embodiment provided the application, to being more than the first predetermined rate of descent threshold value, or rate of descent based on rate of descent
Less than two kinds of adjustment of situation of the second predetermined rate of descent threshold value, make and determining whether, and then realize the standard to supply water temperature
Really adjustment, so as to realize stablizing the load of air-conditioning system, and ensure that the refrigerating capacity and dehumidifying effect of air conditioning terminal.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not have in certain embodiment
The part of detailed description, may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed client, can be by other sides
Formula is realized.Wherein, device embodiment described above is only schematical, such as division of described unit, only one
Kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can combine or
Another system is desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or discussed it is mutual it
Between coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication link of unit or module by some interfaces
Connect, can be electrical or other forms.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be according to the actual needs selected to realize the mesh of this embodiment scheme
's.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list
Unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is to realize in the form of SFU software functional unit and as independent production marketing or use
When, can store in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part for being contributed to prior art in other words or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are used to so that a computer
Equipment（Can be personal computer, server or network equipment etc.）Perform each embodiment methods described of the invention whole or
Part steps.And foregoing storage medium includes：USB flash disk, read-only storage（ROM, Read-Only Memory）, arbitrary access deposits
Reservoir（RAM, Random Access Memory）, mobile hard disk, magnetic disc or CD etc. are various can be with store program codes
Medium.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of air conditioning control method, it is characterised in that including：
The first temperature difference between first supply water temperature and the first return water temperature of the current air-conditioner set of detection；
Judge the first difference between first temperature difference and predetermined set temperature whether more than the first predetermined threshold；
If first difference is more than first predetermined threshold, the frequency of the chilled water pump in the air-conditioner set is adjusted,
So that second supply water temperature and the second return water temperature of the air-conditioner set under the frequency of the chilled water pump after the adjustment
Between second temperature it is poor and the second difference of between the predetermined set temperature is less than or equal to first predetermined threshold；
Wherein, whether the first difference between first temperature difference and predetermined set temperature is being judged more than the first predetermined threshold
Afterwards, also include：
If first difference is less than or equal to first predetermined threshold, every air-conditioner set described in predetermined cycle detection
Return water temperature；
If the 3rd return water temperature of the air-conditioner set detected on current period relatively goes up the freezing detected on a cycle
The rate of descent of the 4th return water temperature of return pipe is more than the first predetermined rate of descent threshold value or less than the second predetermined rate of descent threshold value,
The supply water temperature in the air-conditioner set is then adjusted on the current period, wherein, the first predetermined rate of descent threshold value is big
In the described second predetermined rate of descent threshold value；
If the rate of descent of the 3rd return water temperature the 4th return water temperature is less than or equal to the described first predetermined rate of descent threshold
It is worth and more than or equal to the described second predetermined rate of descent threshold value, then maintains the water supply temperature in the air-conditioner set on the current period
Degree.
2. method according to claim 1, it is characterised in that the frequency of the chilled water pump in the adjustment air-conditioner set
Rate includes：
If first difference is more than first predetermined threshold and first temperature difference is more than the second predetermined threshold, carry
The frequency of the chilled water pump high, wherein, second predetermined threshold is the predetermined set temperature and the described first predetermined threshold
Value sum；
If first difference is more than first predetermined threshold and first temperature difference is less than the 3rd predetermined threshold, drop
The frequency of the low chilled water pump, wherein, the 3rd predetermined threshold is the predetermined set temperature and the described first predetermined threshold
The difference of value.
3. method according to claim 1, it is characterised in that described that the air-conditioner set is adjusted on the current period
In supply water temperature include：
If the rate of descent is more than the described first predetermined rate of descent threshold value, the air-conditioner set is improved on the current period
In supply water temperature；
If the rate of descent is less than the described second predetermined rate of descent threshold value, the air-conditioner set is reduced on the current period
In supply water temperature.
4. method according to claim 3, it is characterised in that
The supply water temperature improved on the current period in the air-conditioner set includes：By the sky on the current period
Adjusting the supply water temperature in unit increases by the 4th predetermined threshold；
The supply water temperature reduced on the current period in the air-conditioner set includes：By the sky on the current period
Adjust supply water temperature the 5th predetermined threshold of reduction in unit.
5. method according to any one of claim 1 to 4, it is characterised in that first predetermined threshold is 0 or big
In 0.
6. a kind of air conditioning control device, it is characterised in that including：
First detection unit, for detecting first between the first supply water temperature of current air-conditioner set and the first return water temperature
Temperature difference；
Judging unit, for judging whether the first difference between first temperature difference and predetermined set temperature is pre- more than first
Determine threshold value；
First adjustment unit, for when first difference is more than first predetermined threshold, adjusting the air-conditioner set in
Chilled water pump frequency so that the second water supply temperature of the air-conditioner set under the frequency of the chilled water pump after the adjustment
Second temperature between degree and the second return water temperature is poor and the second difference between the predetermined set temperature is less than or equal to described
First predetermined threshold；
Wherein, the air conditioning control device also includes：
Second detection unit, for when first difference is less than or equal to first predetermined threshold, then every predetermined week
Phase detects the return water temperature of the air-conditioner set；
Second adjustment unit, the 3rd return water temperature of the air-conditioner set for being detected on current period relatively goes up a cycle
On the rate of descent of the 4th return water temperature of freezing return pipe that detects more than the first predetermined rate of descent threshold value or less than second
During predetermined rate of descent threshold value, the supply water temperature in the air-conditioner set is adjusted on the current period, wherein, described first is pre-
Rate of descent threshold value is determined more than the described second predetermined rate of descent threshold value；
Maintenance unit, described first is less than or equal to for the rate of descent in the 3rd return water temperature the 4th return water temperature
Predetermined rate of descent threshold value and more than or equal to the described second predetermined rate of descent threshold value, then maintain the air conditioner on the current period
Supply water temperature in group.
7. device according to claim 6, it is characterised in that first adjustment unit includes：
First adjusting module, for being more than more than first predetermined threshold and first temperature difference in first difference
During the second predetermined threshold, the frequency of the chilled water pump is improved, wherein, second predetermined threshold is the predetermined set temperature
With the first predetermined threshold sum；
Second adjusting module, for being less than more than first predetermined threshold and first temperature difference in first difference
3rd predetermined threshold, reduces the frequency of the chilled water pump, wherein, the 3rd predetermined threshold be the predetermined set temperature with
The difference of first predetermined threshold.
8. device according to claim 6, it is characterised in that second adjustment unit includes：
3rd adjusting module, for when the rate of descent is more than the described first predetermined rate of descent threshold value, in the current period
The upper supply water temperature improved in the air-conditioner set；
4th adjusting module, for when the rate of descent is less than the described second predetermined rate of descent threshold value, in the current period
The upper supply water temperature reduced in the air-conditioner set.
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| CN201310726582.7A CN104729009B (en) | 2013-12-24 | 2013-12-24 | Air conditioning control method and device |
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| CN106482281B (en) * | 2015-08-28 | 2019-07-05 | 青岛海尔空调电子有限公司 | It is a kind of for the control device of water cooler, control method and water cooler |
| TWI645137B (en) * | 2017-02-21 | 2018-12-21 | 群光電能科技股份有限公司 | Method of controlling pump of air conditioning system |
| CN107300231B (en) * | 2017-07-20 | 2019-12-27 | 广东美的暖通设备有限公司 | Heat pump unit and control method and device thereof |
| CN109595742A (en) * | 2018-11-29 | 2019-04-09 | 天津大学 | A kind of inexpensive adapting method of existing large public building air-conditioning system |
| CN109668272B (en) * | 2018-12-11 | 2021-02-19 | 上海慧鎏科技有限公司 | Running control method for freezing pump of central air-conditioning system and freezing pump controller |
| CN111077799B (en) * | 2019-12-11 | 2021-06-15 | 珠海格力电器股份有限公司 | Air conditioner water pump simulation method and system |
| CN112432307B (en) * | 2020-11-17 | 2021-11-02 | 珠海格力电器股份有限公司 | Water pump evaluation method and device, air conditioning system, storage medium and electronic equipment |
| CN112665121B (en) * | 2020-12-10 | 2022-02-08 | 珠海格力电器股份有限公司 | Control method and device for air conditioner chilled water pump, controller and air conditioning system |
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