CN104930672B - The control method and device of the supply water temperature of chilled water - Google Patents
The control method and device of the supply water temperature of chilled water Download PDFInfo
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- CN104930672B CN104930672B CN201510420481.6A CN201510420481A CN104930672B CN 104930672 B CN104930672 B CN 104930672B CN 201510420481 A CN201510420481 A CN 201510420481A CN 104930672 B CN104930672 B CN 104930672B
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- chilled water
- flow
- temperature
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- supply
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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
- F24F11/30—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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- 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
- F24F2140/50—Load
Abstract
The invention discloses a kind of control method and device of the supply water temperature of chilled water.Wherein, this method includes：Step S1：Detect the flow of chilled water in the freezing supply mains in air-conditioning system；Step S2：The maximum in the flow restriction parameter sets of air-conditioning system is read, obtains the first preset flow, wherein, the flow restriction parameter sets of air-conditioning system include：Flow restriction value, the minimum discharge limits value of control valve corresponding to the minimum frequency limitation of the minimum discharge limits value, chilled water pump of handpiece Water Chilling Units；Step S3：Judge whether the flow of chilled water is less than or equal to the first preset flow；Step S4：In the case where the flow of chilled water is less than or equal to the first preset flow, the supply water temperature of chilled water is heightened.The present invention solves air-conditioning system ineffective technical problem in the case where chilled-water flow is in the operating mode of low discharge.
Description
Technical field
The present invention relates to airconditioning control field, a kind of control method in particular to supply water temperature of chilled water and
Device.
Background technology
In conventional air conditioning system, the supply water temperature of chilled water is usually arranged as 7 DEG C under design conditions, in chilled water
When flow is relatively low, illustrate that air-conditioning is in the operating mode of underload, the operating efficiency of air-conditioning system is relatively low, also causes the energy of air-conditioning system
Consumption is high.
For above-mentioned air-conditioning system in chilled-water flow is under the operating mode of low discharge ineffective problem, at present
Not yet propose effective solution.
The content of the invention
The embodiments of the invention provide a kind of control method and device of the supply water temperature of chilled water, at least to solve air-conditioning
System ineffective technical problem in the case where chilled-water flow is in the operating mode of low discharge.
One side according to embodiments of the present invention, there is provided a kind of control method of the supply water temperature of chilled water, including：
Step S1：Detect the flow of chilled water in the freezing supply mains in air-conditioning system；Step S2：Read the flow restriction of air-conditioning system
Maximum in parameter sets, the first preset flow is obtained, wherein, the flow restriction parameter sets of air-conditioning system include：Cold water
Flow restriction value, the minimum stream of control valve corresponding to the minimum frequency limitation of the minimum discharge limits value, chilled water pump of unit
Measure limits value；Step S3：Judge whether the flow of chilled water is less than or equal to the first preset flow；Step S4：In the stream of chilled water
In the case that amount is less than or equal to the first preset flow, the supply water temperature of chilled water is heightened.
Further, after the supply water temperature of chilled water is heightened, method also includes：Read each end room collected
Between wet-bulb temperature, wherein, each wet-bulb temperature is arranged on the end-equipment in the room of end to gather by air-conditioning system；Meter
Calculate the minimum wet-bulb temperature in multiple wet-bulb temperature；Minimum wet bulb in the supply water temperature of chilled water exceedes multiple wet-bulb temperature
In the case of temperature, the supply water temperature of chilled water is adjusted so that the supply water temperature of chilled water is no more than in multiple wet-bulb temperature
Minimum temperature.
Further, the step of supply water temperature for heightening chilled water, includes：Make the supply water temperature of chilled water pre- according to first
If amplitude raises；Wherein, after the supply water temperature of chilled water is raised according to the first predetermined amplitude, method also includes：Pre-
Cycle Posterior circle of fixing time performs step S1 to step S4.
Further, after the supply water temperature of chilled water is heightened, method also includes：Detect the flow of chilled water；Cold
The flow for freezing water is more than the first preset flow and less than in the case of the second preset flow, keeps the supply water temperature of chilled water not
Become, wherein, the second preset flow is equal to the first preset flow and adds default amplitude.
Further, it is more than the first preset flow and less than in the case of the second preset flow in the flow of chilled water, protects
Hold chilled water supply water temperature it is constant after, method also includes：Step S5：Continue the flow of detection chilled water in real time；Step S6：
In the case where the flow of chilled water is more than or equal to the second preset flow, the supply water temperature of chilled water is turned down.
Further, the step of supply water temperature for turning down chilled water, includes：Make the supply water temperature of chilled water pre- according to first
If amplitude reduction；Wherein, after the supply water temperature of chilled water is reduced according to the first predetermined amplitude, method also includes：Pre-
Fix time and start after the cycle to perform step S5 to step S6.
Another aspect according to embodiments of the present invention, a kind of control device of the supply water temperature of chilled water is additionally provided, wrapped
Include：First detection module, for detecting the flow of chilled water in the freezing supply mains in air-conditioning system；First read module, use
Maximum in the flow restriction parameter sets for reading air-conditioning system, obtains the first preset flow, wherein, the stream of air-conditioning system
Amount limitation parameter sets include：Flow corresponding to the minimum frequency limitation of the minimum discharge limits value, chilled water pump of handpiece Water Chilling Units
The minimum discharge limits value of limits value, control valve；Judge module, for judging whether the flow of chilled water is less than or equal to first
Preset flow；First processing module, in the case of being less than or equal to the first preset flow in the flow of chilled water, heighten freezing
The supply water temperature of water.
Further, device also includes：Second read module, for reading the wet bulb temperature in each end room collected
Degree, wherein, each wet-bulb temperature is arranged on the end-equipment in the room of end to gather by air-conditioning system；Computing module, use
Minimum wet-bulb temperature in the multiple wet-bulb temperature of calculating；Second processing module is more for exceeding in the supply water temperature of chilled water
In the case of minimum wet-bulb temperature in individual wet-bulb temperature, the supply water temperature of chilled water is adjusted so that the supply water temperature of chilled water
No more than the minimum temperature in multiple wet-bulb temperature.
Alternatively, first processing module includes：First processing units, for making the supply water temperature of chilled water pre- according to first
If amplitude raises.
Alternatively, device also includes：Second detection module, for detecting the flow of chilled water；3rd processing module, is used for
It is more than the first preset flow and less than in the case of the second preset flow in the flow of chilled water, keeps the supply water temperature of chilled water
It is constant, wherein, the second preset flow is equal to the first preset flow and adds default amplitude.
Alternatively, device also includes：3rd detection module, for continuing the flow of detection chilled water in real time；Fourth process
Module, in the case of being more than or equal to the second preset flow in the flow of chilled water, turn down the supply water temperature of chilled water.
Alternatively, fourth processing module includes：Second processing unit, for making the supply water temperature of chilled water pre- according to first
If amplitude reduction.
In embodiments of the present invention, using the maximum in the flow restriction parameter sets for reading air-conditioning system, the is obtained
One preset flow, wherein, the flow restriction parameter sets of air-conditioning system include：The minimum discharge limits value of handpiece Water Chilling Units, freezing
Flow restriction value corresponding to the minimum frequency limitation of water pump, control valve minimum discharge limits value mode, pass through detect it is empty
The flow of chilled water and judge whether the flow of chilled water is less than or equal to the first preset flow in freezing supply mains in adjusting system,
Reach the purpose in the case where the flow of chilled water is less than or equal to the first preset flow, heightening the supply water temperature of chilled water,
It is achieved thereby that the technique effect of chilled water supply water temperature is adjusted flexibly according to the load of air-conditioning system, and then solves air-conditioning system
System ineffective technical problem in the case where chilled-water flow is in the operating mode of low discharge.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic flow sheet of the control method of the supply water temperature of according to embodiments of the present invention one chilled water；
Fig. 2 is a kind of flow of the control method of the supply water temperature of according to embodiments of the present invention one optional chilled water
Figure；And
Fig. 3 is the structural representation of the control device of the supply water temperature of according to embodiments of the present invention two chilled water.
Embodiment
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, the technical scheme in the embodiment of the present invention is clearly and completely described, 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, it should all belong to the model that the present invention protects
Enclose.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
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.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or the intrinsic other steps of equipment or unit.
Embodiment 1
According to embodiments of the present invention, there is provided a kind of embodiment of the method for the control method of the supply water temperature of chilled water, need
It is noted that can be in the computer system of such as one group computer executable instructions the flow of accompanying drawing illustrates the step of
Middle execution, although also, show logical order in flow charts, in some cases, can be with different from herein
Order performs shown or described step.
Fig. 1 is the control method of the supply water temperature of chilled water according to embodiments of the present invention, as shown in figure 1, this method bag
Include following steps：
Step S1：Detect the flow of chilled water in the freezing supply mains in air-conditioning system；
In embodiments of the present invention, the flow of the chilled water in the freezing supply mains in air-conditioning system can be detected in real time
Size.
Step S2：The maximum in the flow restriction parameter sets of air-conditioning system is read, obtains the first preset flow, its
In, the flow restriction parameter sets of air-conditioning system include：Minimum discharge limits value, the minimum frequency of chilled water pump of handpiece Water Chilling Units
The minimum discharge limits value of flow restriction value, control valve corresponding to limitation；
Specifically, among a kind of optional embodiment, the minimum discharge limits value of above-mentioned handpiece Water Chilling Units can be air-conditioning
The 30% of metered flow, flow restriction value corresponding to the minimum frequency limitation of above-mentioned chilled water pump can be 25hz when chilled water pump
In the case of corresponding flow value, the minimum discharge limits value of above-mentioned control valve can be in the case where aperture is 15%
Corresponding flow value is, it is necessary to which explanation, in this programme, can select minimum discharge limits value, the freezing of handpiece Water Chilling Units
Maximum in the minimum discharge limits value of flow restriction value, control valve corresponding to the minimum frequency limitation of water pump is used as the
One preset flow.
Step S3：Judge whether the flow of chilled water is less than or equal to the first preset flow；
Step S4：In the case where the flow of chilled water is less than or equal to the first preset flow, the water supply temperature of chilled water is heightened
Degree.
Specifically, in this programme, can to the flow of the chilled water in chilled water pipe with it is above-mentioned get it is first pre-
If flow is contrasted, in the case where the flow of chilled water is less than or equal to the first preset flow, then illustrate the work of current air-conditioning
Make the working condition that state is underload, end is relatively low to the demand of water temperature, and this programme is by above-mentioned steps, in the work of underload
Make to heighten the supply water temperature of chilled water under state, the COP of handpiece Water Chilling Units can be improved, reduce the energy consumption of system.Alternatively, at this
In scheme, the flow of chilled water can be detected in real time, it is right in real time according to chilled-water flow and the relation of the first preset flow
The supply water temperature of chilled water is heightened.Explanation is needed exist for, this programme can realize following effect, and chilled water supplies water warm
Degree often improves 1 DEG C, and the refrigerating efficiency of handpiece Water Chilling Units can improve 3% to 5%.
This programme passes through the flow restriction parameter set of air-conditioning system by detecting the flow of the chilled water of chilled water pipe in real time
Close and determine the first preset flow, then improved according to the relation of the flow of the chilled water of chilled water pipe and first preset flow
The supply water temperature of chilled water, the supply water temperature that chilled water is heightened under the condition of work of air-conditioning underload is realized, so as to improve
The operating efficiency of air-conditioning system at the lower flow conditions.
Alternatively, in step S4：After the supply water temperature for heightening chilled water, the confession of chilled water according to embodiments of the present invention
The control method of coolant-temperature gage also includes：
Step S42：The wet-bulb temperature in each end room collected is read, wherein, each wet-bulb temperature passes through air-conditioning
System is arranged on the end-equipment in the room of end to gather；
In embodiments of the present invention, end room is the room where air conditioning terminal, can be obtained by wet-bulb thermometer
Take wet-bulb temperature.
Step S44：Calculate the minimum wet-bulb temperature in multiple wet-bulb temperature；
Step S46：Chilled water supply water temperature exceed multiple wet-bulb temperature in minimum wet-bulb temperature in the case of, adjust
Save the supply water temperature of chilled water so that the supply water temperature of chilled water is no more than the minimum temperature in multiple wet-bulb temperature.
Explanation is needed exist for, in this programme, adjusts the supply water temperature of chilled water, the water supply of chilled water in any case
Temperature must be no more than the minimum value of the wet-bulb temperature in all end rooms.
Alternatively, step S4：The step of supply water temperature for heightening chilled water, includes：
Step S40：The supply water temperature of chilled water is set to be raised according to the first predetermined amplitude；
In embodiments of the present invention, the first predetermined amplitude be supply water temperature variable quantity, the first predetermined amplitude it is excessive or
The too small Adjustment effect that can all influence air-conditioning system.
Alternatively, the value of the first predetermined amplitude can be steady state value, such as Δ T, judge when passing through step S1 to step S3
When going out the flow of chilled water and being less than or equal to the first preset flow, former supply water temperature is raised into Δ T.In practical application scene, Δ T
Span can be 0 DEG C of 1 DEG C of ＜ Δ T ＜, preferable value is 0.5 DEG C.
It should be noted that in this programme, after the supply water temperature of chilled water is heightened, after predetermined time cycle
(can be the interval of a time cycle) detects the supply water temperature of chilled water again, i.e. circulation performs above-mentioned steps S1 to S4.
Alternatively, in step S4：After the supply water temperature for heightening chilled water, the confession of chilled water according to embodiments of the present invention
The control method of coolant-temperature gage also includes：
Step S72：Detect the flow of chilled water；
Step S74：It is more than the first preset flow and less than in the case of the second preset flow in the flow of chilled water, keeps
The supply water temperature of chilled water is constant, wherein, the second preset flow is equal to the first preset flow and adds default amplitude.
In embodiments of the present invention, the span of default amplitude can be：0 ＜ Δ G 10% × Gmin of ＜, preferably take
It is worth for 5%Gmin, it is necessary to illustrate, Gmin is above-mentioned first preset flow.
Alternatively, in step S74：The flow of chilled water is more than the first preset flow and less than the situation of the second preset flow
Under, after keeping the supply water temperature of chilled water constant, the control method of the supply water temperature of chilled water according to embodiments of the present invention
Also include：
Step S5：Continue the flow of detection chilled water in real time；
Step S6：In the case where the flow of chilled water is more than or equal to the second preset flow, the water supply temperature of chilled water is turned down
Degree.
Specifically, in this programme, the flow of chilled water can be detected in real time, chilled water flow be more than above-mentioned second
In the case of preset flow, then illustrate that in the current situation, end is relatively low for the demand of water temperature, then turns down the water supply of chilled water
Temperature.
Alternatively, step S6：The step of supply water temperature for turning down chilled water, includes：
Step S60：Make the supply water temperature of chilled water reduce according to the first predetermined amplitude；
Alternatively, after the supply water temperature of chilled water is reduced according to the first predetermined amplitude, according to embodiments of the present invention
The control method of supply water temperature of chilled water also include：Start to perform step S5 to step S6 after predetermined time cycle.
The control method embodiment and its optional reality of the supply water temperature of the above-mentioned chilled water provided according to embodiments of the present invention
Mode is applied, below by taking the flow chart of the control method of the supply water temperature of the optional chilled water of one of which as an example, to the application's
Chilled water Water temperature control method is described in detail.
Fig. 2 show a kind of stream of the control method of the supply water temperature of according to embodiments of the present invention one optional chilled water
Cheng Tu, as shown in Fig. 2 this method includes：
Step A：Chilled-water flow G is detected, wherein, the flow for freezing chilled water in supply mains in air-conditioning system is detected,
It is designated as chilled-water flow G；
Step B：The first preset flow Gmin is obtained, wherein, the limitation of this minimum discharge is the minimum stream by handpiece Water Chilling Units
The factors such as amount limitation, the minimum frequency limitation of chilled water pump or the minimum discharge limitation of control valve determine；
In above-mentioned steps B of the present invention, the maximum in the flow restriction parameter sets of air-conditioning system is read, obtains first
Preset flow, wherein, the flow restriction parameter sets of air-conditioning system include：Minimum discharge limits value, the chilled water of handpiece Water Chilling Units
Flow restriction value, the minimum discharge limits value of control valve corresponding to the minimum frequency limitation of pump；
Step C：G≤Gmin, wherein, judge whether the flow G of chilled water is less than or equal to the first preset flow Gmin；
Step D：In the case where step C is judged as YES, the first default amplitude Δ T is obtained, wherein, the first default amplitude can
Think that steady state value can also be changing value, and step E：It is T+ Δs T to heighten supply water temperature T；
Step F：In the case where step C is judged as NO, the second preset flow Gmin+ Δ G are obtained, wherein, G is more than zero, G
It can be steady state value, or changing value；
Step G：Gmin ＜ G ＜ Gmin+ Δ G, wherein, judge whether the flow G of chilled water is more than the first preset flow
Gmin and it is less than the second preset flow Gmin+ Δs G；
Step H：In the case where step G is judged as YES, supply water temperature T is maintained；
Step I：In the case where step G is judged as NO, G ＜ Gmin+ Δ G are determined whether, that is, judge the stream of chilled water
Whether amount G is more than or equal to the second preset flow Gmin+ Δs G；
Step J：In the case where step I is judged as YES, it is T- Δ T to turn down supply water temperature, wherein, Δ T can be constant
Value, or changing value, and the Δ T in step J can also be different from the Δ T in step D or step E；
Step K：In the case where step I is judged as NO, or after step E, step H or step J is performed, perform true
The minimum temperature that the supply water temperature after adjustment is no more than in wet-bulb temperature is protected, wherein, the step includes：Reading collects each
The wet-bulb temperature in end room, wherein, each wet-bulb temperature by air-conditioning system be arranged on end-equipment in the room of end come
Collection, calculate the minimum wet-bulb temperature in multiple wet-bulb temperature, chilled water supply water temperature exceed multiple wet-bulb temperature in
In the case of minimum wet-bulb temperature, the supply water temperature of chilled water is adjusted so that the supply water temperature of chilled water is no more than multiple wet bulbs
Minimum temperature in temperature；
Step L：After the preset time period that is delayed, return and perform step A, formation can continue control air-conditioning system chilled water
The circulation of temperature.
Herein it should be noted that embodiment illustrated in fig. 2 gives step A to step L chilled water Water temperature control
Method, but it is also possible to the part steps in above-mentioned steps are only performed, such as step A to step E, step K and step L, with
Realize chilled water Water temperature control.
Embodiment 2
According to embodiments of the present invention, there is provided a kind of embodiment of the control device of the supply water temperature of chilled water is, it is necessary to say
Bright, the device is used to realize above method embodiment and preferred embodiment, has carried out repeating no more for explanation.
Fig. 3 is a kind of schematic diagram of the control device of the supply water temperature of according to embodiments of the present invention two chilled water, such as Fig. 3
Shown, the device includes：
First detection module 10, for detecting the flow of chilled water in the freezing supply mains in air-conditioning system；
First read module 20, for reading the maximum in the flow restriction parameter sets of air-conditioning system, obtains first
Preset flow, wherein, the flow restriction parameter sets of air-conditioning system include：Minimum discharge limits value, the chilled water of handpiece Water Chilling Units
Flow restriction value, the minimum discharge limits value of control valve corresponding to the minimum frequency limitation of pump；
Judge module 30, for judging whether the flow of chilled water is less than or equal to the first preset flow；
First processing module 40, in the case of being less than or equal to the first preset flow in the flow of chilled water, heighten cold
Freeze the supply water temperature of water.
Pass through above-mentioned first detection module 10, the first read module 20, judge module 30 and first processing module 40, root
According to chilled-water flow and the comparison result of the first preset flow, to determine the regulation of chilled water supply water temperature, air-conditioning system is realized
When system is run in low- load conditions, chilled water supply water temperature is improved on the premise of air-conditioning temperature-reducing dehumidifying is met, solves system
The problem of efficiency is low, improve the overall operational efficiency of system.
Alternatively, the control device of the supply water temperature of chilled water according to embodiments of the present invention also includes：Second reads mould
Block, for reading the wet-bulb temperature in each end room collected, wherein, each wet-bulb temperature is arranged on by air-conditioning system
End-equipment in the room of end gathers；Computing module, for calculating the minimum wet-bulb temperature in multiple wet-bulb temperature；Second
Processing module, in the case of the minimum wet-bulb temperature in exceeding multiple wet-bulb temperature in the supply water temperature of chilled water, regulation
The supply water temperature of chilled water so that the supply water temperature of chilled water is no more than the minimum temperature in multiple wet-bulb temperature.
Alternatively, first processing module 40 includes：First processing units, for making the supply water temperature of chilled water according to first
Predetermined amplitude raises；
Alternatively, the control device of the supply water temperature of chilled water according to embodiments of the present invention also includes：Second detection mould
Block, for detecting the flow of chilled water；3rd processing module, for being more than the first preset flow in the flow of chilled water and being less than
In the case of second preset flow, keep the supply water temperature of chilled water constant, wherein, the second preset flow is equal to the first default stream
Amount is plus default amplitude.
Alternatively, the control device of the supply water temperature of chilled water according to embodiments of the present invention also includes：3rd detection mould
Block, for continuing the flow of detection chilled water in real time；Fourth processing module, it is pre- for being more than or equal to second in the flow of chilled water
If in the case of flow, turn down the supply water temperature of chilled water.
Alternatively, fourth processing module includes：Second processing unit, for making the supply water temperature of chilled water pre- according to first
If amplitude reduction.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not have in some embodiment
The part of detailed description, it may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents, others can be passed through
Mode is realized.Wherein, device embodiment described above is only schematical, such as the division of the unit, Ke Yiwei
A kind of division of logic function, can there is an other dividing mode when actually realizing, for example, multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module
Connect, can be electrical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part to be contributed in other words to prior art 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 causing a computer
Equipment (can be personal computer, server or network equipment etc.) perform each embodiment methods described of the present invention whole or
Part steps.And foregoing storage medium includes：USB flash disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can be with store program codes
Medium.
Described 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 (10)
- A kind of 1. control method of the supply water temperature of chilled water, it is characterised in that including：Step S1：Detect the flow of chilled water in the freezing supply mains in air-conditioning system；Step S2：The maximum in the flow restriction parameter sets of the air-conditioning system is read, obtains the first preset flow, its In, the flow restriction parameter sets of the air-conditioning system include：The minimum discharge limits value of handpiece Water Chilling Units, the minimum of chilled water pump The minimum discharge limits value of flow restriction value, control valve corresponding to frequency limit；Step S3：Judge whether the flow of the chilled water is less than or equal to first preset flow；Step S4：In the case where the flow of the chilled water is less than or equal to first preset flow, the chilled water is heightened Supply water temperature；Wherein, the supply water temperature of the chilled water is heightened, including：Make the supply water temperature of the chilled water according to the first predetermined amplitude Rise；Wherein, after the supply water temperature of the chilled water is raised according to first predetermined amplitude, methods described also includes： Predetermined time cycle Posterior circle performs the step S1 to the step S4；Wherein, the value of first predetermined amplitude is steady state value.
- 2. according to the method for claim 1, it is characterised in that described after the supply water temperature of the chilled water is heightened Method also includes：The wet-bulb temperature in each end room collected is read, wherein, each wet-bulb temperature is set by the air-conditioning system End-equipment in the end room gathers；Calculate the minimum wet-bulb temperature in multiple wet-bulb temperature；The chilled water supply water temperature exceed multiple wet-bulb temperature in minimum wet-bulb temperature in the case of, adjust institute State the supply water temperature of chilled water so that the supply water temperature of the chilled water is no more than the minimum temperature in multiple wet-bulb temperature Degree.
- 3. method as claimed in any of claims 1 to 2, it is characterised in that heightening the water supply of the chilled water After temperature, methods described also includes：Detect the flow of the chilled water；In the case that flow in the chilled water is more than first preset flow and is less than the second preset flow, described in holding The supply water temperature of chilled water is constant, wherein, second preset flow is equal to first preset flow and adds default amplitude.
- 4. according to the method for claim 3, it is characterised in that be more than the described first default stream in the flow of the chilled water Measure and less than in the case of the second preset flow, after keeping the supply water temperature of the chilled water constant, methods described also includes：Step S5：Continuation detects the flow of the chilled water in real time；Step S6：In the case where the flow of the chilled water is more than or equal to second preset flow, the chilled water is turned down Supply water temperature.
- 5. according to the method for claim 4, it is characterised in that include the step of the supply water temperature for turning down the chilled water：Make the supply water temperature of the chilled water reduce according to first predetermined amplitude；Wherein, after the supply water temperature of the chilled water is reduced according to first predetermined amplitude, methods described also includes： Start to perform the step S5 after the predetermined period of time to the step S6.
- A kind of 6. control device of the supply water temperature of chilled water, it is characterised in that including：First detection module, for detecting the flow of chilled water in the freezing supply mains in air-conditioning system；First read module, for reading the maximum in the flow restriction parameter sets of the air-conditioning system, it is pre- to obtain first If flow, wherein, the flow restriction parameter sets of the air-conditioning system include：The minimum discharge limits value of handpiece Water Chilling Units, freezing Flow restriction value, the minimum discharge limits value of control valve corresponding to the minimum frequency limitation of water pump；Judge module, for judging whether the flow of the chilled water is less than or equal to first preset flow；First processing module, in the case of being less than or equal to first preset flow in the flow of the chilled water, heighten The supply water temperature of the chilled water；Wherein, the first processing module includes：First processing units, for making the supply water temperature of the chilled water be raised according to the first predetermined amplitude；Wherein, the value of first predetermined amplitude is steady state value.
- 7. device according to claim 6, it is characterised in that described device also includes：Second read module, for reading the wet-bulb temperature in each end room collected, wherein, each wet-bulb temperature passes through The air-conditioning system is arranged on the end-equipment in the end room to gather；Computing module, for calculating the minimum wet-bulb temperature in multiple wet-bulb temperature；Second processing module, for the minimum wet bulb temperature in exceeding multiple wet-bulb temperature in the supply water temperature of the chilled water In the case of degree, the supply water temperature of the chilled water is adjusted so that the supply water temperature of the chilled water is no more than multiple described wet Minimum temperature in ball temperature.
- 8. the device according to any one in claim 6 to 7, it is characterised in that described device also includes：Second detection module, for detecting the flow of the chilled water；3rd processing module, for being more than first preset flow in the flow of the chilled water and being less than the second preset flow In the case of, keep the supply water temperature of the chilled water constant, wherein, second preset flow is equal to the described first default stream Amount is plus default amplitude.
- 9. device according to claim 8, it is characterised in that described device also includes：3rd detection module, for continuing to detect the flow of the chilled water in real time；Fourth processing module, in the case of being more than or equal to second preset flow in the flow of the chilled water, turn down The supply water temperature of the chilled water.
- 10. device according to claim 9, it is characterised in that the fourth processing module includes：Second processing unit, for making the supply water temperature of the chilled water be reduced according to first predetermined amplitude.
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| CN107588504B (en) * | 2017-09-07 | 2020-07-14 | 廖怒涛 | Pump-valve integrated control device and control method for air-conditioning water system |
| CN113883663A (en) * | 2021-09-30 | 2022-01-04 | 珠海格力电器股份有限公司 | Method and device for controlling outlet water temperature of cold machine and air conditioning equipment |
| CN115183435A (en) * | 2022-06-13 | 2022-10-14 | 西安华为数字能源技术有限公司 | Control method and device of air conditioning system |
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| WO2015093360A1 (en) * | 2013-12-20 | 2015-06-25 | 株式会社日立製作所 | Heat storage system and control method therefor |
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| JP2005233557A (en) * | 2004-02-20 | 2005-09-02 | Mitsubishi Heavy Ind Ltd | Refrigeration system and its operating method |
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| WO2015093360A1 (en) * | 2013-12-20 | 2015-06-25 | 株式会社日立製作所 | Heat storage system and control method therefor |
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