CN106642535A - Central air-conditioning cold site control system and control method - Google Patents
Central air-conditioning cold site control system and control method Download PDFInfo
- Publication number
- CN106642535A CN106642535A CN201611030818.3A CN201611030818A CN106642535A CN 106642535 A CN106642535 A CN 106642535A CN 201611030818 A CN201611030818 A CN 201611030818A CN 106642535 A CN106642535 A CN 106642535A
- Authority
- CN
- China
- Prior art keywords
- module
- cooling
- cold
- pump
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001816 cooling Methods 0.000 claims abstract description 189
- 238000007710 freezing Methods 0.000 claims abstract description 93
- 230000008014 freezing Effects 0.000 claims abstract description 93
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 95
- 239000000498 cooling water Substances 0.000 claims description 73
- 238000005259 measurement Methods 0.000 claims description 19
- 230000009467 reduction Effects 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 239000008400 supply water Substances 0.000 claims description 3
- 238000011161 development Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- 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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a central air-conditioning cold site control system and a control method. The control system comprises a cooling tower module, a cooling pump module, a cold machine module and a freezing pump module, wherein the cooling tower module, the cooling pump module, the cold machine module and the freezing pump module comprise at least one cooling tower, at least one cooling pump, at least one cold machine and at least one freezing pump respectively, the cooling tower module, the cooling pump module, the cold machine module and the freezing pump module are controlled by a corresponding cooling tower module controller, a corresponding cooling pump module controller, a corresponding cold machine module controller and a corresponding freezing pump module controller respectively, the cooling tower module controller is further connected to a cooling header pipe controller, and the cold machine module controller is further connected to a freezing header pipe controller. According to the central air-conditioning cold site control system and the control method, different system forms and equipment quantities can be aimed at, the development process of a system is simplified, and the operating efficiency of the central air-conditioning cold site is improved.
Description
Technical field
The present invention relates to technical field of automatic control, in particular to a kind of cold station control system of central air-conditioning and
Control method.
Background technology
Central air-conditioning it is cold station provide air conditioning water for public building, typically by cold, refrigerating water pump, cooling pump, cooling tower,
Valve, automatic control system etc. are constituted.The cold station automatic control system of central air-conditioning is capable of achieving management automatically and controls, can be significantly
Cold station automatic level is improved, management manpower and materials input is reduced, central air conditioner system efficiency level is lifted.
Fig. 1 is referred to, the cold automatic control system of standing of existing central air-conditioning mainly there are following characteristics：
1) DDC controllers are (cold, cooling pump, cooling tower, electric control valve, cold by a large amount of I/O interfaces and field apparatus
Freeze pump etc.) it is connected, various measured values and executing agency's state feedback information are collected, it is delivered to host computer, and by PC control
Instruction output is handed down to each executing agency.
2) host computer is connected by bus or network service with DDC controllers, typically by each DDC by various measured values with
The state feedback information of each executing agency is sent to host computer, calculated by the information unification optimization to all DDC by host computer,
Coordinate control, and the control command of generation is sent to each DDC.
Conventional central air-conditioning plant control system is primarily present problems with：
1) on stream, because the system form of each project, number of devices are different, so as to need to each
Project carries out order form exploitation.In water system form, in fact it could happen that following typical case：A. refrigerating water pump, cooling pump, cold elder generation
Respectively after parallel connection in groups, cold group is connected in series again with freezing pump group, cooling pump group；B. cold and refrigerating water pump, cooling pump are first gone here and there
After connection, different cold are connected in parallel again；C. according to the size of cold, cold and its corresponding refrigerating water pump, cooling pump are divided into into two
Group, for example：Cold 1～3 is High cooling power, cold 4～5 is little cold, operationally can be entered according to actual refrigeration duty demand size
The collocation of row size cold；D. secondary pumping system.For each situation, because water system form, number of devices are differed, need
Control program is developed again for every kind of situation.This development scheme cycle is long, and input manpower is more, is not suitable with big rule
The demand of mould exploitation.
2) the control mode energy-saving effect of conventional central air-conditioning plant control system is not good.Different control modes are (for example
Cold unit number control, water pump unit number control, cooling water inflow control etc.) it is very big for the efficiency level impact at the cold station of central air-conditioning.
Conventional central air-conditioning plant control system typically only realizes the functions such as the basic start and stop of equipment, protection, monitoring, and does not focus on section
Can control so that the cold station overall operation efficiency of central air-conditioning is relatively low.
The content of the invention
A kind of cold station control system of central air-conditioning and control method are embodiments provided, can be for different
System form and number of devices, simplify the development process of system, and improve the operational efficiency at the cold station of central air-conditioning.
For achieving the above object, on the one hand the embodiment of the present invention provides a kind of central air-conditioning cold station control system, the control
System processed includes cooling tower module, cooling pump module, cold module and freezing pump module；The cooling tower module includes
At least one cooling tower, the cooling pump module includes at least one cooling pump, and the cold module includes at least one
Cold, the freezing pump module includes at least one refrigerating water pump；The cooling tower module, cooling pump module, cold module with
And freezing pump module respectively by corresponding cooling tower module controller, cooling pump module controller, cold module controller and
Refrigerating water pump module controller is controlled；The cooling tower module controller, cooling pump module controller, cold module controller and
Refrigerating water pump module controller is sequentially connected；The cooling tower module controller is also connected with the total tube controller of cooling, the cold
Module controller is also connected with the total tube controller of freezing.
Further, the cold module controller includes：Unit number control unit, for controlling the cold module in
Plus machine operates or subtracts machine operation；Freezing Water temperature control unit, the freezing supply water temperature for controlling the cold module sets
Definite value；Chilled-water flow changing value determining unit, when adding machine operation or subtract machine operation for producing in the cold module, really
The chilled-water flow changing value of the fixed cold module；Data transmission unit, for the chilled-water flow changing value to be sent
To the refrigerating water pump module controller.
Further, the refrigerating water pump module controller includes：Data receipt unit, for receiving the cold module control
The chilled-water flow changing value that device processed is sent；Refrigerating water pump adjustment unit, for according to the chilled-water flow changing value, adjusting institute
State the quantity of refrigerating water pump in freezing pump module so that cold current desired with the cold module of the quantity of the refrigerating water pump after adjustment
Freeze discharge to be adapted.
Further, the cold module controller includes：Unit number control unit, for controlling the cold module in
Plus machine operates or subtracts machine operation；Cooling water flow changing value determining unit, for producing in the cold module machine operation is added
Or when subtracting machine operation, determine the cooling water flow changing value of the cold module；Data transmission unit, for by the cooling water
Flow volume change values are sent to the cooling pump module controller.
Further, the cooling pump module controller includes：Data receipt unit, for receiving the cold module control
The cooling water flow changing value that device processed is sent；Cooling pump adjustment unit, for according to the cooling water flow changing value, adjusting institute
State the quantity of cooling pump in cooling pump module so that cold current desired with the cold module of the quantity of the cooling pump after adjustment
But discharge is adapted.
Further, the cooling pump module controller is used for the current desired cooling water flow value of the cold module
Transmit to the cooling tower module controller；Correspondingly, the cooling tower module controller is used for described cold according to what is received
The current desired cooling water flow value of machine module, adjusts the quantity of cooling tower in the cooling tower module so that cold after adjustment
But the quantity of the tower cooling water flow value current desired with the cold module is adapted.
Further, the total tube controller of the freezing includes：Refrigerating capacity determining unit, for measurement, freezing supply mains is current
Refrigerating capacity either predict freezing supply mains predetermined time refrigerating capacity and by measurement refrigerating capacity or prediction refrigerating capacity
Send to the cold module controller；Pressure reduction temperature difference determining unit, for pressure reduction or temperature that measurement freezing supplies return main
Difference, and the pressure reduction or the temperature difference of measurement are sent to the cooling pump module controller；Bypass valve opening control unit, for root
According to the freezing of measurement for the pressure reduction of return main, the bypass valve opening of freezing supply mains is controlled, to control the pressure for return main
Difference.
Further, the total tube controller of the cooling includes：Temperature detecting unit, for measuring the cooling tower module in
The outlet temperature of each cooling tower, and control to cool down the bypass valve opening of supply mains, so that each is cold in the cold module
The cooling water inlet temperature of machine is higher than the preset temperature upper limit；Parameter provides unit, for carrying to the cooling pump module controller
The mean temperature of backwater is supplied for optimum cooling water inflow or cooling water.
Further, the freezing pump module includes freezing one-level pump module and freezing two stage pump module, wherein, it is described cold
Freeze one-level pump module and controlled by two stage pump module is freezed by the control of primary pump module controller, the freezing two stage pump module is freezed
Device is controlled；The freezing primary pump module controller is connected with the cold module controller, the freezing two stage pump module control
Device processed is connected with the total tube controller of the freezing.
For achieving the above object, on the other hand the embodiment of the present invention provides a kind of control method, and the control method includes：
Produce in cold module controller detection cold module plus machine operation subtracts machine operation, produces plus machine in the cold module
Operation or when subtracting machine and operating, determines the chilled-water flow changing value and cooling water flow changing value of the cold module, and by institute
State chilled-water flow changing value and cooling water flow changing value is respectively sent to refrigerating water pump module controller and cooling pump module control
Device processed；The refrigerating water pump module controller freezes the number of refrigerating water pump in pump module according to the chilled-water flow changing value, adjustment
Amount so that the quantity of the refrigerating water pump after the adjustment chilled-water flow current desired with the cold module is adapted；The cooling
Pump module controller cools down the quantity of cooling pump in pump module according to the cooling water flow changing value, adjustment so that after adjustment
The quantity cooling water flow current desired with the cold module of cooling pump be adapted；The cooling pump module controller will
The current desired cooling water flow value of the cold module is transmitted to cooling tower module controller；The cooling tower module control
Device adjusts the quantity of cooling tower in cooling tower module according to the current desired cooling water flow value of the cold module for receiving,
So that the quantity of the cooling tower after the adjustment cooling water flow value current desired with the cold module is adapted.
Therefore, using cold group, cooling pump group, freezing pump group and cooling tower group as each in the embodiment of the present invention
Integral module, with the change of system form and number of devices, it is only necessary to change the connected mode and modules of modules
The quantity of interior equipment, can adapt in different item development environments, considerably reduce input in project development process
Man power and material.Modules can be controlled by respective controller such that it is able to according to actual conditions, optimize each
The quantity of equipment in module, and by the information exchange between each controller, synergistically whole system can be adjusted
It is whole, so as to improve the efficiency of the cold station operation of central air-conditioning.
Description of the drawings
The accompanying drawing for constituting the part of the application is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the connection figure of the cold station control system of central air-conditioning in prior art；
A kind of frame diagram of the cold station control system of central air-conditioning that Fig. 2 the embodiment of the present application is provided；
A kind of frame diagram of the cold station control system of central air-conditioning that Fig. 3 is provided for another embodiment of the application；
Fig. 4 is the connection figure of control system in the present embodiment；
A kind of frame diagram of the cold station control system of central air-conditioning that Fig. 5 is provided for another embodiment of the application；
Fig. 6 is the connection figure of control system in the present embodiment；
A kind of frame diagram of the cold station control system of central air-conditioning that Fig. 7 is provided for another embodiment of the application；
Fig. 8 is the connection figure of control system in the present embodiment；
A kind of flow chart of control method that Fig. 9 is provided for the embodiment of the present application.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, below in conjunction with the application reality
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described enforcement
Example is only some embodiments of the present application, rather than the embodiment of whole.Based on the embodiment in the application, this area is common
All other embodiment that technical staff is obtained under the premise of creative work is not made, should all belong to the application protection
Scope.
The embodiment of the present application provides a kind of central air-conditioning cold station control system.Fig. 1 is referred to, the control system can be wrapped
Include cooling tower module, cooling pump module, cold module and freezing pump module.Wherein, the cooling tower module is included at least
One cooling tower, the cooling pump module includes at least one cooling pump, and the cold module includes at least one cold,
The freezing pump module includes at least one refrigerating water pump.
In the present embodiment, the cooling tower module, cooling pump module, cold module and freezing pump module are respectively by phase
Cooling tower module controller, cooling pump module controller, cold module controller and the control of refrigerating water pump module controller answered.
The cooling tower module controller, cooling pump module controller, cold module controller and refrigerating water pump module controller are successively
It is connected.The cooling tower module controller is also connected with the total tube controller of cooling, and the cold module controller is also total with freezing
Tube controller is connected.
In the embodiment of the present application, the cold module controller can include：
Unit number control unit, for controlling the cold module in plus machine operation or subtract machine operation；
Freezing Water temperature control unit, for controlling the freezing supply water temperature setting value of the cold module；
Chilled-water flow changing value determining unit, operates for producing to add machine operation or subtract machine in the cold module
When, determine the chilled-water flow changing value of the cold module；
Data transmission unit, for the chilled-water flow changing value to be sent to the refrigerating water pump module controller.
In the embodiment of the present application, the refrigerating water pump module controller includes：
Data receipt unit, for receiving the chilled-water flow changing value that the cold module controller is sent；
Refrigerating water pump adjustment unit, freezes for according to the chilled-water flow changing value, adjusting described freezing in pump module
The quantity of pump so that the quantity of the refrigerating water pump after the adjustment chilled-water flow current desired with the cold module is adapted.
In the embodiment of the present application, the cold module controller includes：
Unit number control unit, for controlling the cold module in plus machine operation or subtract machine operation；
Cooling water flow changing value determining unit, operates for producing to add machine operation or subtract machine in the cold module
When, determine the cooling water flow changing value of the cold module；
Data transmission unit, for the cooling water flow changing value to be sent to the cooling pump module controller.
In the embodiment of the present application, the cooling pump module controller includes：
Data receipt unit, for receiving the cooling water flow changing value that the cold module controller is sent；
Cooling pump adjustment unit, cools down for according to the cooling water flow changing value, adjusting described cooling in pump module
The quantity of pump so that the quantity of the cooling pump after the adjustment cooling water flow current desired with the cold module is adapted.
In the embodiment of the present application, the cooling pump module controller is used for the current desired cooling of the cold module
Water flow value is transmitted to the cooling tower module controller；
Correspondingly, the cooling tower module controller is used for according to the current desired cooling water of the cold module for receiving
Flow value, adjusts the quantity of cooling tower in the cooling tower module so that the quantity of the cooling tower after adjustment and the cold mould
The current desired cooling water flow value of block is adapted.
In the embodiment of the present application, the total tube controller of the freezing includes：
Refrigerating capacity determining unit, for the current refrigerating capacity of measurement freezing supply mains or prediction freezing supply mains default
The refrigerating capacity at moment simultaneously sends the refrigerating capacity of the refrigerating capacity of measurement or prediction to the cold module controller, using as cold
The foundation of machine unit number control, refrigerating water pump number of units and VFC；
Pressure reduction temperature difference determining unit, for measurement the pressure reduction or the temperature difference for return main, and the pressure reduction that will be measured are freezed
Or the temperature difference is sent to the cooling pump module controller, as the foundation of freezing pump module VFC；
Bypass valve opening control unit, for the pressure reduction of return main, freezing supply mains is controlled for according to the freezing of measurement
Bypass valve opening, to control the pressure reduction for return main.
In the embodiment of the present application, the total tube controller of the cooling includes：
Temperature detecting unit, for measuring the cooling tower module in each cooling tower outlet temperature, and control cooling
The bypass valve opening of supply mains, so that the cooling water inlet temperature of each cold is higher than on preset temperature in the cold module
Limit；
Parameter provides unit, and the cooling water inflow or cooling water for providing optimum to the cooling pump module controller is supplied
The mean temperature of backwater, as the foundation of cooling pump module frequency conversion.
Specifically.When cooling water inflow improves (or cooling water supply and return water riser is low), cold power is reduced, and is cooled down
Pump is improved with cooling tower power；When cooling water inflow reduces (or cooling water supply and return water riser is high), cold power is improved, and
Cooling pump is reduced with cooling tower power.Accordingly, there exist the cooling water inflow or cooling water supply and return water riser of optimum so that cold
Machine, cooling pump, cooling tower general power are minimum.Cooling supply mains controller is recordable at different conditions (for example：Different chamber's outer gas
Open number of units, cooling tower as parameter, cold and open number of units etc.), different cooling water inflows or cooling water supply and return water riser it is cold
Total energy of standing effect (cold station can imitate calculating including at least cold module and its corresponding cooling pump module, cooling tower module), and
Optimizing in historical data base, finds optimum cooling water inflow or cooling water supply and return water riser so that cold station can imitate highest.
In practical application scene, for different device structures, the optimum state of every equipment work also tends to difference.
For example, for the centrifugal cold group of frequency conversion, existing makes Energy Efficiency Ratio reach highest rate of load condensate, and usually 50% to 80%.For
The centrifugal cold group of multiple stage frequency conversion cold module in parallel, under the outside overall refrigerating effect demand for providing, its module controller can
According to performance curve, optimal operation number of units is found so that every unit operation is under close to optimal rate of load condensate.
For variable frequency pump, existing makes pump efficiency reach highest discharge.The water in parallel for multiple stage variable frequency pump
Pump module (cooling pump module and freezing pump module), under given total (pumping) head and total flow demand, its module controller can root
According to performance curve, optimal operation number of units is found so that every water pump operation is under close to optimal discharge.
The cooling tower module in parallel for multiple stage frequency conversion cooling tower, under given total flow demand, its module controller
Each cooling tower should be made on the premise of higher than cooling water flow lower limit, as far as possible many unlatching cooling tower number of units are utilized to try one's best
The heat exchange area of cooling tower.
Additionally, in practical application scene, cooling tower module, cooling pump module, cold module and freezing pump module it
Between there may be various different connected modes.Fig. 3 is referred to, cold 1 to cold 4 is corresponding to refrigerating water pump 4 with refrigerating water pump 1 respectively
Connection, cooling pump 1 to cooling pump 4 also respectively with cold 1 to cold 4 it is corresponding connect, cooling tower 1 to cooling tower 4 also respectively with it is cold
But pump 1 connects to the correspondence of cooling pump 4.That is, being all right between the autonomous device in modules in the system architecture
Should connect.The frame diagram of the module controller of modules can be as shown in Figure 4.In the system architecture, there may be many
It is individual to cool down total tube controller, cooling tower module controller, cooling pump module controller and refrigerating water pump module controller.
Fig. 5 is referred to, cold 1 to 3 is associated with refrigerating water pump 1 to 3, and cold 4 to 5 is associated with refrigerating water pump 4 to 5.Additionally,
Cold 1 to 3 is also connected with refrigerating water pump 1 to 3, and cold 4 to 5 is also connected with refrigerating water pump 4 to 5.Cooling tower 1 to 5 respectively with cooling pump 1
It is connected to 3 and cooling pump 4 to 5.In the system architecture, cold 1 to 3 can be considered as cold module 1, and cold 4 to 5 can be regarded
For cold module 2, refrigerating water pump 1 to 3 can be considered as freezing pump module 1, and refrigerating water pump 4 to 5 can be considered as freezing pump module 2, wherein,
Each module can correspond to a module controller.So, the frame diagram of the module controller of the system architecture can be such as Fig. 6
It is shown.
In the embodiment of the present application, the freezing pump module can also include freezing one-level pump module and freezing two stage pump mould
Block, wherein, by the control of primary pump module controller is freezed, the freezing two stage pump module is by freezing for the freezing one-level pump module
Two stage pump module controller is controlled；The freezing primary pump module controller is connected with the cold module controller, described cold
Freeze two stage pump module controller to be connected with the total tube controller of the freezing.
Specifically, Fig. 7 and Fig. 8 is referred to, freezing pump module can be divided into 4 freezing primary pumps and 4 freezing two stage pumps,
Each freezing primary pump can be used as an independent module, and each two freezing two stage pump can be used as an independent module.
So, what is be connected with the cold module can be 4 freezing one-level pump modules, and be connected with the water knockout drum can be 2
Individual freezing two stage pump module.Each module can be controlled by corresponding module controller, so as to constitute module as shown in Figure 8
The frame diagram of controller.
Determination cooling line cooling water inflow or cooling water supply and return water riser are act as due to the total tube controller of cooling,
Its quantity by cooling down the quantity of house steward, while being also that the quantity of cooling tower module is determined.When each cooling tower parallel connection becomes one
During cooling tower module, only one cooling house steward (including for return pipe road), only with cooling supply mains's controller, such as Fig. 2
With shown in Fig. 6.When each cooling tower is mutually not attached to, then respectively there is a cooling house steward, then each cooling tower each adopts one
Total tube controller is cooled down, as shown in Figure 4.
It is each to freeze two stage pump module controller and freeze total tube controller phase for the water system form of freezing two stage pump
Even.Each branch road least favorable end supply backwater pressure difference signal is measured by freezing total tube controller, each freezing two is delivered to respectively
Level pump module, as the foundation of each freezing two stage pump module regulating frequency.
Fig. 9 is referred to, the embodiment of the present application also provides a kind of control method, and the control method includes：
S1：Produce in cold module controller detection cold module plus machine operation subtracts machine operation, in the cold mould
When generation plus machine operate or subtract machine to operate in block, the chilled-water flow changing value and cooling water flow for determining the cold module becomes
Change value, and the chilled-water flow changing value and cooling water flow changing value are respectively sent to into refrigerating water pump module controller and cold
But pump module controller；
S2：The refrigerating water pump module controller is freezed according to the chilled-water flow changing value in adjustment freezing pump module
The quantity of pump so that the quantity of the refrigerating water pump after the adjustment chilled-water flow current desired with the cold module is adapted；
S3：The cooling pump module controller is cooled down according to the cooling water flow changing value in adjustment cooling pump module
The quantity of pump so that the quantity of the cooling pump after the adjustment cooling water flow current desired with the cold module is adapted；
S4：The cooling pump module controller transmits the current desired cooling water flow value of the cold module to cooling
At tower module controller；
S5：The cooling tower module controller according to the current desired cooling water flow value of the cold module for receiving,
The quantity of cooling tower in adjustment cooling tower module so that the quantity of the cooling tower after adjustment is current desired with the cold module
Cooling water flow value is adapted.
In the embodiment of the present application, methods described also includes：
The current refrigerating capacity of total tube controller measurement freezing supply mains or prediction freezing supply mains are freezed in predetermined time
Refrigerating capacity and the refrigerating capacity of the refrigerating capacity of measurement or prediction is sent to the cold module controller；
The freezing total tube controller measurement freezing for return main pressure reduction or the temperature difference, and by the pressure reduction of measurement or
The temperature difference is sent to the cooling pump module controller；
The freezing that total tube controller is freezed according to measurement controls the bypass for freezing supply mains for the pressure reduction of return main
Valve opening, to balance the hydraulic pressure in front and back of water intaking valve.
In the embodiment of the present application, methods described also includes：
The outlet temperature that total tube controller measures each cooling tower in the cooling tower module is cooled down, and it is total to control cooling water
The bypass valve opening of pipe, so that the cooling water inlet temperature of each cold is higher than the preset temperature upper limit in the cold module；
It is described to cool down cooling water inflow from optimum to the cooling pump module controller or cooling water that total tube controller provides
For the mean temperature of backwater.
Therefore, using cold group, cooling pump group, freezing pump group and cooling tower group as each in the embodiment of the present invention
Integral module, with the change of system form and number of devices, it is only necessary to change the connected mode and modules of modules
The quantity of interior equipment, can adapt in different item development environments, considerably reduce input in project development process
Man power and material.Modules can be controlled by respective controller such that it is able to according to actual conditions, optimize each
The quantity of equipment in module, and by the information exchange between each controller, synergistically whole system can be adjusted
It is whole, so as to improve the efficiency of the cold station operation of central air-conditioning.
Obviously, those skilled in the art should be understood that each module or each step of the above-mentioned embodiment of the present invention can be with
Realized with general computing device, they can be concentrated on single computing device, or be distributed in multiple computing devices
On the network for being constituted, alternatively, they can be realized with the executable program code of computing device, it is thus possible to by it
Store and performed by computing device in the storage device, and in some cases, can be holding different from order herein
The shown or described step of row, or they are fabricated to respectively each integrated circuit modules, or will be multiple in them
Module or step are fabricated to single integrated circuit module to realize.So, the embodiment of the present invention is not restricted to any specific hard
Part and software are combined.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the embodiment of the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made
Any modification, equivalent substitution and improvements etc., should be included within the scope of the present invention.
Claims (10)
1. the cold station control system of a kind of central air-conditioning, it is characterised in that the control system includes cooling tower module, cooling pump
Module, cold module and freezing pump module；The cooling tower module includes at least one cooling tower, the cooling pump module
Include at least one cooling pump, the cold module includes at least one cold, and the freezing pump module is included at least
One refrigerating water pump；The cooling tower module, cooling pump module, cold module and freezing pump module are respectively by corresponding cooling tower
The control of module controller, cooling pump module controller, cold module controller and refrigerating water pump module controller；The cooling tower
Module controller, cooling pump module controller, cold module controller and refrigerating water pump module controller are sequentially connected；It is described cold
But tower module controller also with cool down total tube controller and be connected, the cold module controller also with the total tube controller phase of freezing
Even.
2. control system according to claim 1, it is characterised in that the cold module controller includes：
Unit number control unit, for controlling the cold module in plus machine operation or subtract machine operation；
Freezing Water temperature control unit, for controlling the freezing supply water temperature setting value of the cold module；
Chilled-water flow changing value determining unit, when adding machine operation or subtract machine operation for producing in the cold module, really
The chilled-water flow changing value of the fixed cold module；
Data transmission unit, for the chilled-water flow changing value to be sent to the refrigerating water pump module controller.
3. control system according to claim 2, it is characterised in that the refrigerating water pump module controller includes：
Unit number control unit, for controlling the cold module in plus machine operation or subtract machine operation；
Refrigerating water pump adjustment unit, for according to the chilled-water flow changing value, adjusting refrigerating water pump in the freezing pump module
Quantity so that the quantity of the refrigerating water pump after the adjustment chilled-water flow current desired with the cold module is adapted.
4. control system according to claim 1, it is characterised in that the cold module controller includes：
Operation detector unit, for detecting the cold module in produce plus machine operation or subtract machine operation；
Cooling water flow changing value determining unit, when adding machine operation or subtract machine operation for producing in the cold module, really
The cooling water flow changing value of the fixed cold module；
Data transmission unit, for the cooling water flow changing value to be sent to the cooling pump module controller.
5. control system according to claim 4, it is characterised in that the cooling pump module controller includes：
Data receipt unit, for receiving the cooling water flow changing value that the cold module controller is sent；
Cooling pump adjustment unit, for according to the cooling water flow changing value, adjusting cooling pump in the cooling pump module
Quantity so that the quantity of the cooling pump after the adjustment cooling water flow current desired with the cold module is adapted.
6. control system according to claim 1, it is characterised in that the cooling pump module controller is used for will be described cold
The current desired cooling water flow value of machine module is transmitted to the cooling tower module controller；
Correspondingly, the cooling tower module controller is used for according to the current desired cooling water flow of the cold module for receiving
Value, adjusts the quantity of cooling tower in the cooling tower module so that the quantity of the cooling tower after adjustment is worked as with the cold module
Cooling water flow value needed for front is adapted.
7. control system according to claim 1, it is characterised in that the total tube controller of the freezing includes：
Refrigerating capacity determining unit, for the current refrigerating capacity of measurement freezing supply mains or prediction freezing supply mains in predetermined time
Refrigerating capacity and the refrigerating capacity of the refrigerating capacity of measurement or prediction is sent to the cold module controller；
Pressure reduction temperature difference determining unit, for measurement freezing for return main pressure reduction or the temperature difference, and by measurement pressure reduction or
The temperature difference is sent to the cooling pump module controller；
Bypass valve opening control unit, for the pressure reduction of return main, the side of freezing supply mains is controlled for according to the freezing of measurement
Port valve aperture, to control the pressure reduction for return main.
8. control system according to claim 1, it is characterised in that the total tube controller of the cooling includes：
Temperature detecting unit, for measuring the cooling tower module in each cooling tower outlet temperature, and it is total to control cooling water
The bypass valve opening of pipe, so that the cooling water inlet temperature of each cold is higher than the preset temperature upper limit in the cold module；
Parameter provides unit, and the cooling water inflow or cooling water for providing optimum to the cooling pump module controller supplies backwater
Mean temperature.
9. control system according to claim 1, it is characterised in that the freezing pump module includes freezing one-level pump module
With freezing two stage pump module, wherein, it is described freezing one-level pump module by freeze primary pump module controller control, it is described freezing two
Level pump module is controlled by two stage pump module controller is freezed；The freezing primary pump module controller is controlled with the cold module
Device is connected, and the freezing two stage pump module controller is connected with the total tube controller of the freezing.
10. the control method in a kind of cold station control system of central air-conditioning being applied to as described in arbitrary in claim 1 to 9,
Characterized in that, the control method includes：
Produce in cold module controller detection cold module plus machine operation subtracts machine operation, produces in the cold module
Plus machine operation or subtract machine operate when, determine the chilled-water flow changing value and cooling water flow changing value of the cold module, and
The chilled-water flow changing value and cooling water flow changing value are respectively sent to into refrigerating water pump module controller and cooling pump mould
Block controller；
The refrigerating water pump module controller freezes the number of refrigerating water pump in pump module according to the chilled-water flow changing value, adjustment
Amount so that the quantity of the refrigerating water pump after the adjustment chilled-water flow current desired with the cold module is adapted；
The cooling pump module controller cools down the number of cooling pump in pump module according to the cooling water flow changing value, adjustment
Amount so that the quantity of the cooling pump after the adjustment cooling water flow current desired with the cold module is adapted；
The cooling pump module controller transmits the current desired cooling water flow value of the cold module to cooling tower module
At controller；
The cooling tower module controller is according to the current desired cooling water flow value of the cold module for receiving, adjustment cooling
The quantity of cooling tower in tower module so that the quantity of the cooling tower after the adjustment cooling current current desired with the cold module
Value is adapted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611030818.3A CN106642535B (en) | 2016-11-16 | 2016-11-16 | A kind of cold station control system of central air-conditioning and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611030818.3A CN106642535B (en) | 2016-11-16 | 2016-11-16 | A kind of cold station control system of central air-conditioning and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106642535A true CN106642535A (en) | 2017-05-10 |
| CN106642535B CN106642535B (en) | 2019-06-18 |
Family
ID=58808478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611030818.3A Active CN106642535B (en) | 2016-11-16 | 2016-11-16 | A kind of cold station control system of central air-conditioning and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106642535B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107514710A (en) * | 2017-09-11 | 2017-12-26 | 珠海格力电器股份有限公司 | Modular integrates cold station |
| CN110926045A (en) * | 2019-11-22 | 2020-03-27 | 珠海格力电器股份有限公司 | Water chilling unit and control method thereof |
| CN111076387A (en) * | 2019-12-05 | 2020-04-28 | 珠海格力电器股份有限公司 | Variable-frequency centrifugal unit, control method thereof, storage medium and air conditioner |
| CN111365834A (en) * | 2020-03-19 | 2020-07-03 | 广东美的暖通设备有限公司 | Control method of air conditioning system, and computer-readable storage medium |
| CN112856722A (en) * | 2021-01-07 | 2021-05-28 | 丁一 | Cold source system control method, controller, system, storage medium and program product |
| CN114791163A (en) * | 2022-06-23 | 2022-07-26 | 蘑菇物联技术（深圳）有限公司 | Method, apparatus and medium for controlling central air conditioning system |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2968079B2 (en) * | 1991-03-29 | 1999-10-25 | 株式会社日立製作所 | Multi-type absorption air conditioning system |
| JP2002031376A (en) * | 2000-07-19 | 2002-01-31 | Aisin Seiki Co Ltd | Air-conditioning system |
| CN101140096A (en) * | 2007-10-18 | 2008-03-12 | 苏州艾隆科技有限公司 | electricity economizer centralized management method and system of central air-conditioning |
| CN101414172A (en) * | 2008-11-21 | 2009-04-22 | 杜晓通 | Building energy management system based on energy effect |
| CN201348319Y (en) * | 2008-12-17 | 2009-11-18 | 广州市设计院 | Loop primary pump conveying system of chilled water central air conditioner |
| CN201463177U (en) * | 2009-01-16 | 2010-05-12 | 深圳职业技术学院 | Central air conditioner optimized energy-saving control system based on load forecasting |
| CN102012077A (en) * | 2010-12-06 | 2011-04-13 | 北京星达技术开发公司 | Energy-saving control system and control method of central air conditioning freezing station |
| CN102645006A (en) * | 2012-05-07 | 2012-08-22 | 深圳市捷华深环保节能科技有限公司 | Energy-saving remote control system for central air conditioner and use method thereof |
| CN203533800U (en) * | 2013-09-13 | 2014-04-09 | 广州科创节能科技服务有限公司 | Fuzzy control system of central air conditioner |
| JP5513984B2 (en) * | 2010-05-21 | 2014-06-04 | 株式会社日立製作所 | Cold water production facility and cold water production method |
| JP2015021685A (en) * | 2013-07-22 | 2015-02-02 | 東洋熱工業株式会社 | Free cooling system and free cooling method using the same |
| CN104566787A (en) * | 2014-12-17 | 2015-04-29 | 中国南方航空工业(集团)有限公司 | Energy-saving control method and control system of water chilling unit |
| CN104838213A (en) * | 2013-01-31 | 2015-08-12 | 三菱重工业株式会社 | Heat source system, and device and method for controlling cooling water supply device |
| CN105115100A (en) * | 2015-07-22 | 2015-12-02 | 李振宇 | Central air conditioning equipment control system and method based on intelligent optimization |
| CN105135636A (en) * | 2015-09-12 | 2015-12-09 | 褚如圣 | Central air-conditioning variable flow optimization system |
| CN204963107U (en) * | 2015-07-22 | 2016-01-13 | 向君 | Central air conditioning efficiency intelligent control device |
| CN105352118A (en) * | 2015-11-09 | 2016-02-24 | 深圳市海亿达能源科技股份有限公司 | Method and device for automatically configuring modules |
| CN105864967A (en) * | 2016-04-11 | 2016-08-17 | 九州方圆实业控股(集团)有限公司 | Integrated optimization energy-saving system of central air-conditioning refrigeration station |
| CN106052046A (en) * | 2016-07-20 | 2016-10-26 | 珠海格力电器股份有限公司 | Automatic control system for chilled water station of central air conditioner |
-
2016
- 2016-11-16 CN CN201611030818.3A patent/CN106642535B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2968079B2 (en) * | 1991-03-29 | 1999-10-25 | 株式会社日立製作所 | Multi-type absorption air conditioning system |
| JP2002031376A (en) * | 2000-07-19 | 2002-01-31 | Aisin Seiki Co Ltd | Air-conditioning system |
| CN101140096A (en) * | 2007-10-18 | 2008-03-12 | 苏州艾隆科技有限公司 | electricity economizer centralized management method and system of central air-conditioning |
| CN101414172A (en) * | 2008-11-21 | 2009-04-22 | 杜晓通 | Building energy management system based on energy effect |
| CN201348319Y (en) * | 2008-12-17 | 2009-11-18 | 广州市设计院 | Loop primary pump conveying system of chilled water central air conditioner |
| CN201463177U (en) * | 2009-01-16 | 2010-05-12 | 深圳职业技术学院 | Central air conditioner optimized energy-saving control system based on load forecasting |
| JP5513984B2 (en) * | 2010-05-21 | 2014-06-04 | 株式会社日立製作所 | Cold water production facility and cold water production method |
| CN102012077A (en) * | 2010-12-06 | 2011-04-13 | 北京星达技术开发公司 | Energy-saving control system and control method of central air conditioning freezing station |
| CN102645006A (en) * | 2012-05-07 | 2012-08-22 | 深圳市捷华深环保节能科技有限公司 | Energy-saving remote control system for central air conditioner and use method thereof |
| CN104838213A (en) * | 2013-01-31 | 2015-08-12 | 三菱重工业株式会社 | Heat source system, and device and method for controlling cooling water supply device |
| JP2015021685A (en) * | 2013-07-22 | 2015-02-02 | 東洋熱工業株式会社 | Free cooling system and free cooling method using the same |
| CN203533800U (en) * | 2013-09-13 | 2014-04-09 | 广州科创节能科技服务有限公司 | Fuzzy control system of central air conditioner |
| CN104566787A (en) * | 2014-12-17 | 2015-04-29 | 中国南方航空工业(集团)有限公司 | Energy-saving control method and control system of water chilling unit |
| CN105115100A (en) * | 2015-07-22 | 2015-12-02 | 李振宇 | Central air conditioning equipment control system and method based on intelligent optimization |
| CN204963107U (en) * | 2015-07-22 | 2016-01-13 | 向君 | Central air conditioning efficiency intelligent control device |
| CN105135636A (en) * | 2015-09-12 | 2015-12-09 | 褚如圣 | Central air-conditioning variable flow optimization system |
| CN105352118A (en) * | 2015-11-09 | 2016-02-24 | 深圳市海亿达能源科技股份有限公司 | Method and device for automatically configuring modules |
| CN105864967A (en) * | 2016-04-11 | 2016-08-17 | 九州方圆实业控股(集团)有限公司 | Integrated optimization energy-saving system of central air-conditioning refrigeration station |
| CN106052046A (en) * | 2016-07-20 | 2016-10-26 | 珠海格力电器股份有限公司 | Automatic control system for chilled water station of central air conditioner |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107514710A (en) * | 2017-09-11 | 2017-12-26 | 珠海格力电器股份有限公司 | Modular integrates cold station |
| CN110926045A (en) * | 2019-11-22 | 2020-03-27 | 珠海格力电器股份有限公司 | Water chilling unit and control method thereof |
| CN111076387A (en) * | 2019-12-05 | 2020-04-28 | 珠海格力电器股份有限公司 | Variable-frequency centrifugal unit, control method thereof, storage medium and air conditioner |
| CN111365834A (en) * | 2020-03-19 | 2020-07-03 | 广东美的暖通设备有限公司 | Control method of air conditioning system, and computer-readable storage medium |
| CN112856722A (en) * | 2021-01-07 | 2021-05-28 | 丁一 | Cold source system control method, controller, system, storage medium and program product |
| CN114791163A (en) * | 2022-06-23 | 2022-07-26 | 蘑菇物联技术（深圳）有限公司 | Method, apparatus and medium for controlling central air conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106642535B (en) | 2019-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106642535A (en) | Central air-conditioning cold site control system and control method | |
| CN104134100B (en) | A kind of energy-saving management system based on cloud computing | |
| CN102367980B (en) | Central air-conditioning multi-dimension integrating optimization control system and method | |
| CN100487332C (en) | Energy-saving intelligent control system for central air conditioner | |
| CN100523635C (en) | Intelligent cluster control system of central air-conditioning | |
| CN109917646B (en) | System and method for optimizing operation of regional cooling and heating equipment | |
| CN108644887B (en) | Secondary side heat supply automatic balance adjusting method based on room temperature and intelligent energy consumption monitoring system thereof | |
| CN106500280A (en) | A kind of control system and control method at the cold station of central air-conditioning | |
| CN110895016A (en) | Fuzzy self-adaptive based energy-saving group control method for central air-conditioning system | |
| CN112503746B (en) | Control method of cold source system of power station house based on machine learning and particle swarm algorithm | |
| CN104633857A (en) | Air conditioner energy-saving optimization control method and device | |
| CN101922781A (en) | Controlled environment temperature and humidity regulation based air conditioner energy saving control method and system | |
| CN102062459A (en) | Energy-saving control system of central air conditioner | |
| CN101655272A (en) | Energy-saving control management system of network central air conditioner and method thereof | |
| CN103994554A (en) | Variable pressure difference control device, method and system for air-conditioner | |
| CN101846355A (en) | Arrangement method based on dynamic balance unit technology in hot water heating system | |
| CN203869259U (en) | Variable pressure difference control device based on openness of chilled water valve of tail-end air conditioning equipment | |
| CN101922783A (en) | Enthalpy control-based method and system for controlling energy conservation of air conditioner | |
| CN110332656B (en) | Ventilation air-conditioning system of underground water power station factory building and operation control method thereof | |
| CN115823706B (en) | Self-adaptive variable pressure difference energy-saving control system and method for primary pump | |
| CN113739371A (en) | Central air-conditioning system based on cloud cooperation and control method thereof | |
| CN109028447A (en) | A kind of air conditioner refrigerating computer room intelligence control system and control method based on cloud computing | |
| CN105371443B (en) | The control device of air conditioning cooling water system and its data processing method of main control module | |
| CN206387073U (en) | A kind of control system at the cold station of central air-conditioning | |
| CN106196512A (en) | The cold station control system of central air-conditioning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191101 Address after: 230088 Anhui city of Hefei province high tech Zone Parkinson weir Science Park Road No. 208. Co-patentee after: GREE ELECTRIC APPLIANCES,Inc.OF ZHUHAI Patentee after: GREE ELECTRIC(HEFEI) Co.,Ltd. Address before: 519070 Guangdong city of Zhuhai Province Qianshan Patentee before: GREE ELECTRIC APPLIANCES,Inc.OF ZHUHAI |
|
| TR01 | Transfer of patent right |