CN106196512A - The cold station control system of central air-conditioning - Google Patents
The cold station control system of central air-conditioning Download PDFInfo
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- CN106196512A CN106196512A CN201610724638.9A CN201610724638A CN106196512A CN 106196512 A CN106196512 A CN 106196512A CN 201610724638 A CN201610724638 A CN 201610724638A CN 106196512 A CN106196512 A CN 106196512A
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Abstract
The invention discloses a kind of cold station control system of central air-conditioning.This system includes: the first cold station equipment set, including at least one the first cold station equipment, each first cold station equipment connects first device controller, parallel connection between the first cold station equipment in first cold station equipment set, the first device controller is for regulating the operational factor of the first cold station equipment of connection;Second cold station equipment set, including at least one the second cold station equipment, each second cold station equipment connects second device controller, parallel connection between the second cold station equipment in second cold station equipment set, second device controller is for regulating the operational factor of the second cold station equipment of connection, wherein, the second device controller and the first device controller communication connect, and the second cold station equipment and the first cold station equipment are different types of cold station equipment.It is big that the present invention solves central air-conditioning cold station control system factory internal control program development amount, the technical problem that the workload of field connection, networking configuration and debugging is big.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of cold station control system of central air-conditioning.
Background technology
The cold station of central air-conditioning provides air conditioning water for public building, and its automatic control system can realize central air-conditioning station
Automatically management and control, improve cold station automatic level, reduce management manpower and materials and put into, promote central air conditioner system efficiency
Level.In Practical Project, conventional central air-conditioning plant equipment is provided by equipment supplier, and automatic control system is by single group
Control producer provides, and therefore, conventional central air-conditioning plant automatic control system is a kind of centralized, control independent of field apparatus
System.Fig. 1 is the schematic diagram of conventional central air-conditioning plant automatic control system, as it is shown in figure 1, DDC controller is by a large amount of IO
Interface and cold station equipment, such as: cold, refrigerating water pump, cooling tower, electric control valve are connected, for collecting the operation ginseng of cold station equipment
Number information, and control instruction output is handed down to each cold station equipment;Host computer is by bus or network service and DDC controller phase
Even, typically by each DDC, the trip information of cold station equipment is sent to host computer, by host computer by all DDC are sent out
The parameter information sent is unified optimizes calculating, coordination control, and sends the control command generated to each DDC, and in tradition
In the development process of centre air-conditioning plant automatic control system, owing to water system form, the number of devices of each project are different,
Automatic control system is completely independent with equipment, and control program is developed by the project that is required for again, and carries out big at the scene
Amount wiring, networking configuration and the work of debugging, therefore, conventional central air-conditioning plant automatic control system is a kind of order form exploitation
Pattern, there is factory's internal control program development amount big, the problem that the workload of field connection, networking configuration and debugging is big, often
Individual project is required for special application developer and field adjustable personnel follow-up, and the pattern of this order form exploitation cannot realize
The requirement of automatic control system large-scale standardized exploitation.
For above-mentioned problem, effective solution is the most not yet proposed.
Summary of the invention
Embodiments provide a kind of cold station control system of central air-conditioning, at least to solve central air-conditioning cold station control
System factory internal control program development amount is big, the technical problem that the workload of field connection, networking configuration and debugging is big.
An aspect according to embodiments of the present invention, it is provided that a kind of cold station control system of central air-conditioning, including: first is cold
Station equipment set, including at least one the first cold station equipment, each first cold station equipment connects first device controller, the
Parallel connection between the first cold station equipment in one cold station equipment set, the first device controller sets for the first cold station regulating connection
Standby operational factor;Second cold station equipment set, including at least one the second cold station equipment, each second cold station equipment connects one
Individual second device controller, in parallel between the second cold station equipment in the second cold station equipment set, the second device controller is used for
The operational factor of the second cold station equipment that regulation connects, wherein, the second device controller and the first device controller communication connect,
Second cold station equipment and the first cold station equipment are different types of cold station equipment.
Further, system also includes: first object controller, and first object controller is and the first cold station equipment set
In the first device controller of being connected of any one first cold station equipment;Second target controller, the second target controller is
The second device controller being connected with any one second cold station equipment in the second cold station equipment set, wherein, first object
Controller and the second target controller serial communication.
Further, the first cold station equipment also includes the first auxiliary device, and the first device controller is additionally operable to first attached
The operational factor of genus equipment is controlled.
Further, when the first cold station equipment is cold, the first auxiliary device include freezing Inlet and outlet water temperature sensor,
Freezing side electrically operated valve, cold side electrically operated valve;When the first cold station equipment is water pump, the first auxiliary device includes pressure sensing
Device, temperature sensor;When the first cold station equipment is cooling tower, the first auxiliary device include cooling tower Inlet and outlet water electrically operated valve,
Cooling tower Inlet and outlet water temperature sensor, outdoor temperature humidity sensor;When the first cold station equipment is electric control valve, first is attached
Equipment includes total flow sensor tube, house steward's temperature sensor, manifold pressure sensor.
Further, the first device controller is loaded with the data base of pre-set categories information collection, pre-set categories information collection
The classification of the first cold station equipment that data base is connected with the first device controller matches.
The data base of pre-set categories information collection at least includes that the device type of the first cold station equipment, performance are joined further
Number, running status, manually set information, warning message, auxiliary device running state information.
Further, system also includes: the 3rd cold station equipment set, the 4th cold station equipment set, the 5th cold station equipment collection
Closing and the 6th cold station equipment set, the first cold station equipment set includes that an electric control valve, the second cold station equipment set include
Multiple cold equipment, the 3rd cold station equipment set includes multiple cooling tower, and the 4th cold station equipment set includes multiple cooling pump, the
Five cold station equipment set include that multiple refrigerating water pump, the 6th cold station equipment set include at least one end, and wherein, multiple cold set
Parallel connection between standby device controller, in parallel between the device controller between multiple cooling towers, setting between multiple cooling pumps
Parallel connection between preparation controller, in parallel between the device controller of multiple refrigerating water pumps, the device controller of end and electric control valve
Device controller series connection, the device controller of electric control valve connects with the device controller of any one cold equipment, times
The device controller of one cold equipment of meaning is connected with the device controller of any one cooling pump, setting of any one cooling pump
Preparation controller is connected with the device controller of any one cooling tower, and the device controller of any one cold equipment is with any one
The device controller series connection of individual refrigerating water pump.
Further, system also includes: the 3rd cold station equipment set, the 4th cold station equipment set, the 5th cold station equipment collection
Closing and the 6th cold station equipment set, the first cold station equipment set includes that an electric control valve, the second cold station equipment set include
Multiple cold equipment, the 3rd cold station equipment set includes multiple cooling tower, and the 4th cold station equipment set includes multiple cooling pump, the
Five cold station equipment set include that multiple refrigerating water pump, the 6th cold station equipment set include at least one end, and wherein, multiple cold set
Between standby device controller in parallel, in parallel between the device controller between multiple cooling towers, the device controller of end with
The device controller series connection of electric control valve, each cold equipment is in series with a corresponding cooling pump, and each cold
Equipment is in series with a corresponding refrigerating water pump.
Further, system also includes: the 3rd cold station equipment set, the 4th cold station equipment set, the 5th cold station equipment collection
Closing and the 6th cold station equipment set, the first cold station equipment set includes at least one end, and the second cold station equipment set includes many
Individual cold equipment, the 3rd cold station equipment set includes multiple cooling tower, and the 4th cold station equipment set includes multiple cooling pump, the 5th
Cold station equipment set includes multiple freezing primary pump, and the 6th cold station equipment set includes multiple freezing two stage pump, wherein, end
Device controller is connected with the device controller of electric control valve, in parallel between the device controller of multiple cooling towers, Duo Geleng
But in parallel between the device controller of pump, in parallel between the device controller of multiple cold equipment, setting of multiple freezing two stage pump
Between preparation controller in parallel, and the device controller string of the device controller of any one freezing two stage pump and electric control valve
Joining, the device controller of any one cooling tower is connected with the device controller of any one cooling pump, any one cooling pump
Device controller connect with the device controller of any one cold, the device controller of each cold and corresponding freezing one
The device controller series connection of level pump.
Further, system also includes: the 3rd cold station equipment set, the 4th cold station equipment set, the 5th cold station equipment collection
Closing and the 6th cold station equipment set, the first cold station equipment set includes that an electric control valve, the second cold station equipment set include
First group of cold equipment and second group of cold equipment, the 3rd cold station equipment set includes first group of cooling tower and second group of cooling
Tower, the 4th cold station equipment set includes that first group of cooling pump and second group of cooling pump, the 5th cold station equipment set include first group
Refrigerating water pump and second group of refrigerating water pump, the 6th cold station equipment set includes at least one end, wherein, the device controller of end with
The device controller series connection of electric control valve, in parallel between the device controller of first group of cooling tower, setting of second group of cooling tower
Between preparation controller in parallel, in parallel between the device controller of first group of cooling pump, the device controller of second group of cooling pump it
Between in parallel, in parallel between the device controller of first group of cold equipment, in parallel between the device controller of second group of cold equipment,
Parallel connection between the device controller of first group of refrigerating water pump, in parallel between the device controller of second group of refrigerating water pump, electric control valve
Device controller connect with the device controller of any one first group of cold equipment, the device controller of electric control valve with
Any one second group of cold equipment device controller series connection, the device controller of any one first group of cold equipment with appoint
The device controller series connection of one first group of cooling pump of meaning, the device controller of any one second group of cold equipment is with any one
Individual second group of cooling pump device controller series connection, the device controller of any one first group of cooling pump with any one first
The device controller series connection of group cooling tower, the device controller of any one second group of cooling pump and any one second group cooling
The device controller series connection of tower, the device controller of any one first group of cold equipment and any one first group of refrigerating water pump
Device controller is connected, the device controller of any one second group of cold equipment and the equipment of any one second group of refrigerating water pump
Controller is connected.
In embodiments of the present invention, use a cold station equipment to connect the mode of a device controller, set by cold station
Standby device controller regulates the operational factor of this cold station equipment, and by the device controller of dissimilar next cold station equipment
Between be connected by communication, reach the purpose coordinating to control the cold station of central air-conditioning, thus decrease the cold station of central air-conditioning and automatically control and be
System wiring, networking configuration and debugging efforts, it is to avoid control program is developed again for different water system forms,
And then it is big to solve central air-conditioning Leng Zhan automatic control system factory internal control program development amount, field connection, networking configuration and adjust
The big technical problem of workload of examination, it is achieved that the technology of the large-scale standardized exploitation of central air-conditioning cold station automatic control system
Effect.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of a kind of central air-conditioning cold station automatic control system according to prior art;
Fig. 2 is the schematic diagram of a kind of water system topological according to correlation technique;
Fig. 3 is the schematic diagram of a kind of cold station control system of central air-conditioning alternatively topology according to embodiments of the present invention;
Fig. 4 is the schematic diagram of the another kind of water system topological according to correlation technique;
Fig. 5 is the schematic diagram of the cold station control system of central air-conditioning alternatively of another kind according to embodiments of the present invention topology;
Fig. 6 is the schematic diagram of another the water system topological according to correlation technique;
Fig. 7 is the schematic diagram of according to embodiments of the present invention another the cold station control system of central air-conditioning alternatively topology;
Fig. 6 is the schematic diagram of another the water system topological according to correlation technique;
Fig. 7 is the schematic diagram of according to embodiments of the present invention another the cold station control system of central air-conditioning alternatively topology;
Fig. 8 is the schematic diagram of another the water system topological according to correlation technique;
Fig. 9 is the schematic diagram of according to embodiments of the present invention another the cold station control system of central air-conditioning alternatively topology.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with in the embodiment of the present invention
Accompanying drawing, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a present invention part rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under not making creative work premise, all should belong to the model of present invention protection
Enclose.
According to embodiments of the present invention, it is provided that a kind of cold station control system of central air-conditioning.This system includes: the first cold station sets
Standby set, including at least one the first cold station equipment, each first cold station equipment connects first device controller, and first is cold
Parallel connection between the first cold station equipment in station equipment set, the first device controller is for regulating the first cold station equipment of connection
Operational factor;Second cold station equipment set, including at least one the second cold station equipment, each second cold station equipment connects one the
Two device controllers, in parallel between the second cold station equipment in the second cold station equipment set, the second device controller is used for regulating
The operational factor of the second cold station equipment connected, wherein, the second device controller and the first device controller communication connect, and second
Cold station equipment and the first cold station equipment are different types of cold station equipment.
The embodiment of the present invention uses a cold station to connect the mode of a device controller, by the equipment control of cold station equipment
Device processed regulates the operational factor of this cold station equipment, and by communication phase between the device controller of dissimilar next cold station equipment
Even, reach the purpose coordinating to control the cold station of central air-conditioning, decrease the automatic control system wiring of central air-conditioning cold station, networking configuration
And debugging efforts, it is to avoid for different water system forms, control program is developed again, and then solve central authorities
Air-conditioning plant automatic control system factory internal control program development amount is big, and the workload of field connection, networking configuration and debugging is big
Technical problem, it is achieved that the technique effect of the large-scale standardized exploitation of central air-conditioning cold station automatic control system.
In the present embodiment, each cold station equipment and a device controller are connected, and each cold station equipment also wraps
Containing auxiliary device, and the operational factor of the auxiliary device of the cold station equipment that device controller is to being connected is controlled.I.e.
Alternatively, above-mentioned control system also includes: first object controller, first object controller be with in the first cold station equipment set
The first device controller that any one first cold station equipment is connected;Second target controller, the second target controller be with
The second device controller that in second cold station equipment set, any one second cold station equipment is connected, wherein, first object control
Device processed and the second target controller serial communication.Alternatively, above-mentioned first cold station equipment also includes the first auxiliary device, and first sets
Preparation controller is additionally operable to be controlled the operational factor of the first auxiliary device.
Such as: when above-mentioned cold station equipment is cold, a cold connects a device controller, and device controller is permissible
Controlling the separate unit cold being attached thereto, device controller can also control the auxiliary device freezing Inlet and outlet water temperature of this cold simultaneously
Sensor, freezing side electrically operated valve, cold side electrically operated valve;When above-mentioned cold station equipment is water pump, a water pump connects one
Device controller, device controller can control the separate unit water pump being attached thereto, and meanwhile, it is cold that device controller can also control this
The auxiliary device pressure transducer of machine, temperature sensor;When above-mentioned cold station equipment is cooling tower, a cooling tower connects one
Device controller, device controller can control the separate unit cooling tower being attached thereto, and device controller can also control this simultaneously
The auxiliary device cooling tower Inlet and outlet water electrically operated valve of cooling tower, cooling tower Inlet and outlet water temperature sensor, outdoor temperature humidity sensor;
When above-mentioned cold station equipment is electric control valve, electric control valve connects a device controller, and device controller can control
The electric control valve being attached thereto, device controller can also control auxiliary device house steward's flow biography of this electric control valve simultaneously
Sensor, house steward's temperature sensor, manifold pressure sensor;When above-mentioned cold station equipment is end, end connects an equipment control
Device processed, device controller can control the end being attached thereto, and device controller can also control the attached of this end and sets simultaneously
Standby terminal controller, and obtain the measurement parameter that end operation is relevant, such as: end aperture, temperature, flow, pressure;Need explanation
, the quantity of end is generally a lot, and includes multiple end-equipment, such as: air-conditioning box, new blower fan, fan coil etc., end
One device controller can be set, receive, by this device controller, the operation information that end is overall, such as: unlatching rate, valve
Aperture, the supply backwater temperature difference of each end, the confession backwater pressure reduction etc. of each end, and provide information to other device controllers
As the foundation controlled;End can also arrange multiple device controller according to the actual requirements, and control is responsible for by each device controller
Make one or a group end.
Alternatively, when the first cold station equipment is cold, the first auxiliary device includes freezing Inlet and outlet water temperature sensor, cold
Freeze side electrically operated valve, cold side electrically operated valve;When the first cold station equipment is water pump, the first auxiliary device includes pressure sensing
Device, temperature sensor;When the first cold station equipment is cooling tower, the first auxiliary device include cooling tower Inlet and outlet water electrically operated valve,
Cooling tower Inlet and outlet water temperature sensor, outdoor temperature humidity sensor;When the first cold station equipment is electric control valve, first is attached
Equipment includes total flow sensor tube, house steward's temperature sensor, manifold pressure sensor.
Alternatively so that between the device controller that connected of each cold station equipment can self-organizing communication, each
Device controller is all loaded with data base, has recorded the rule of self-organizing communication in data base, thus by device controller it
Between communication realize the control of cold station equipment, reduce the line between cold station equipment, the i.e. first device controller is loaded with default
The data base of classification information collection, the first cold station equipment that the data base of pre-set categories information collection is connected with the first device controller
Classification match.
The data base of pre-set categories information collection at least includes the device type of the first cold station equipment, performance parameter, operation shape
State, manually set information, warning message, auxiliary device running state information.
In the above-described embodiments, after device controller is connected with cold station equipment, by what device controller was connected
Cold station equipment type is set, and device controller can be made automatically to load the data base of information collection of this kind equipment, this information
The data base of collection is preset in the inside of the said equipment controller, contains different types of cold station equipment, such as: cold, water pump, cold
But the operation information of tower, electric control valve etc., such as: the device type of above-mentioned cold station equipment, performance parameter, running status, manually
The information such as set information, warning message, auxiliary device running status.The pre-set categories information collection that each device controller is corresponding can
With by the connection between device controller, it is achieved real time information is shared, by loading the data base of above-mentioned information collection, different
Device controller between can be realized the work such as mutual communication, computing, coordinated operation by standardization control program.
Preferably, the device controller of each type (cold, water pump, cooling tower, electric control valve etc.) is also with standard
Control program, can realize all devices controller the most jointly participate in calculate.This control program can obtain each equipment control
The pre-set categories information collection information that device processed is corresponding, and and the limited local devices controller of surrounding carry out communication, computing and coordination,
To determine self start and stop and running status.
Alternatively, the cold station control system of above-mentioned central air-conditioning also includes: the 3rd cold station equipment set, the 4th cold station equipment collection
Close, the 5th cold station equipment set and the 6th cold station equipment set, the first cold station equipment set includes an electric control valve, second
Cold station equipment set includes that multiple cold equipment, the 3rd cold station equipment set include multiple cooling tower, the 4th cold station equipment set
Including multiple cooling pumps, the 5th cold station equipment set includes multiple refrigerating water pump, and the 6th cold station equipment set includes at least one end
End, wherein, in parallel between the device controller of multiple cold equipment, in parallel between the device controller between multiple cooling towers,
Parallel connection between device controller between multiple cooling pumps, in parallel between the device controller of multiple refrigerating water pumps, the equipment of end
Controller is connected with the device controller of electric control valve, the device controller of electric control valve and any one cold equipment
Device controller is connected, and the device controller of any one cold equipment is connected with the device controller of any one cooling pump,
The device controller of any one cooling pump is connected with the device controller of any one cooling tower, any one cold equipment
Device controller is connected with the device controller of any one refrigerating water pump.
Fig. 2 is that one according to embodiments of the present invention can according to the schematic diagram of a kind of water system topological of correlation technique, Fig. 3
The schematic diagram of selection of land central air-conditioning cold station control system topology, as in figure 2 it is shown, refrigerating water pump, cooling pump, cold the most respectively and are unified into
After group, cold group is connected in series with refrigerating water pump group, cooling pump group again, in the present embodiment, corresponding to the water system shape shown in Fig. 2
Formula, needs to be attached according to the connected mode shown in Fig. 3 by device controller with connection, as it is shown on figure 3, wherein, similar
It is connected between the device controller that the cold station equipment of type is connected and represents parallel connection, after the cold station equipment parallel connection in groups of type, if
Through consultation refrigerating capacity, flow etc. can be optimized distribution between preparation controller;In the device controllers of different groups any
One equipment connection is connected, and represents the series connection between the device controller of different group, in figure 3, connects same category of device, as
Cold, cooling pump, refrigerating water pump, cooling tower device controller between parallel connection in groups;Connect device controller and the company of cooling pump 2
The device controller connecing cold 2 is connected to form between group series connection;Connect the device controller of refrigerating water pump 3 and the equipment being connected cold 3
Controller is connected to form between group series connection;The device controller connecting electric control valve is connected with the device controller being connected cold 1
Form series connection, and the backwater pressure difference data that supplies measurement obtained feeds back to chilled water pump;Connect device controller and the company of end
The device controller connecing electric control valve is connected to form series connection, by signals such as end aperture, temperature, flow, pressure by connecting
The device controller of electric control valve feeds back to cold, water pump.
Alternatively, the cold station control system of above-mentioned central air-conditioning also includes: the 3rd cold station equipment set, the 4th cold station equipment collection
Close, the 5th cold station equipment set and the 6th cold station equipment set, the first cold station equipment set includes an electric control valve, second
Cold station equipment set includes that multiple cold equipment, the 3rd cold station equipment set include multiple cooling tower, the 4th cold station equipment set
Including multiple cooling pumps, the 5th cold station equipment set includes multiple refrigerating water pump, and the 6th cold station equipment set includes at least one end
End, wherein, in parallel between the device controller of multiple cold equipment, in parallel between the device controller between multiple cooling towers,
The device controller of end is connected with the device controller of electric control valve, each cold equipment and a corresponding cooling pump phase
Connect, and each cold equipment is in series with a corresponding refrigerating water pump.
Fig. 4 is the schematic diagram of the another kind of water system topological according to correlation technique, and Fig. 5 is according to embodiments of the present invention another
A kind of schematic diagram of the cold station control system of central air-conditioning alternatively topology, as shown in Figure 4, each cold respectively with refrigerating water pump,
Cooling pump is connected, and is then connected in parallel between different cold again, in the present embodiment, corresponding to the water system form shown in Fig. 4,
Need to be attached according to the connected mode shown in Fig. 5 by device controller, as it is shown in figure 5, wherein, with type with connection
It is connected between the device controller that cold station equipment is connected and represents parallel connection, after the cold station equipment parallel connection in groups of type, equipment control
Through consultation refrigerating capacity, flow etc. can be optimized distribution between device processed;In the device controllers of different groups any one
Equipment connection is connected, and represents the series connection between the device controller of different group, in Figure 5, connects setting of different cold
It is connected to form parallel connection between preparation controller, through consultation refrigerating capacity can be optimized distribution;Connect setting of each cold
Preparation controller connects refrigerating water pump with corresponding, the device controller of cooling pump connects formation series connection;Connect setting of different cooling tower
Preparation controller is connected to form parallel connection, and the device controller being simultaneously connected with cooling tower 1 is connected with the device controller being connected cooling pump 1
Connect between formation group;The device controller connecting electric control valve is connected to form series connection with the device controller being connected cold 1, will
Measure the figure of cold load evidence obtained and feed back to cold, and the backwater pressure difference data that supplies measurement obtained feeds back to refrigerating water pump;Connect
The device controller of end is connected to form series connection with the device controller being connected electric control valve, by end aperture, temperature, stream
The signals such as amount, pressure feed back to cold, refrigerating water pump, cooling pump by motorized adjustment valve control.
Alternatively, the cold station control system of above-mentioned central air-conditioning also includes: the 3rd cold station equipment set, the 4th cold station equipment collection
Conjunction, the 5th cold station equipment set and the 6th cold station equipment set, the first cold station equipment set includes at least one end, and second is cold
Station equipment set includes that multiple cold equipment, the 3rd cold station equipment set include multiple cooling tower, the 4th cold station equipment set bag
Including multiple cooling pump, the 5th cold station equipment set includes multiple freezing primary pump, and the 6th cold station equipment set includes multiple freezing
Two stage pump, wherein, the device controller of end is connected with the device controller of electric control valve, and the equipment of multiple cooling towers controls
Parallel connection between device, in parallel between the device controller of multiple cooling pumps, in parallel between the device controller of multiple cold equipment, many
Between the device controller of individual freezing two stage pump in parallel, and the device controller of any one freezing two stage pump and motorized adjustment
The device controller series connection of valve, the device controller of any one cooling tower and the device controller string of any one cooling pump
Joining, the device controller of any one cooling pump is connected with the device controller of any one cold, the equipment control of each cold
Device processed is connected with the device controller of corresponding freezing primary pump.
Fig. 6 is the schematic diagram of another the water system topological according to correlation technique, and Fig. 7 is the most again
The schematic diagram of a kind of cold station control system of central air-conditioning alternatively topology, Fig. 6 does the schematic diagram of a kind of water system form, such as figure
Shown in 6, this water system uses secondary pumping system, cold, cooling pump, the parallel connection respectively of freezing two stage pump in groups, cold group with
Cooling pump group is connected in series;Each cold is connected with freezing primary pump respectively, is then connected in parallel between different cold again;?
In the present embodiment, corresponding to the water system form shown in Fig. 6, need device controller with connection according to the company shown in Fig. 7
The mode of connecing is attached, as it is shown in fig. 7, wherein, represents with being connected between the device controller that the cold station equipment of type is connected
Parallel connection, after the cold station equipment parallel connection in groups of type, can enter refrigerating capacity, flow etc. between device controller through consultation
Row optimized distribution;In the device controller of different groups, any one equipment connection is connected, and the equipment representing different group controls
Series connection between device, in the figure 7, connects same category of device, such as cold, cooling tower, cooling pump, the device controller of freezing two stage pump
Between parallel connection in groups;Every device controller connecting cold is connected to form series connection with corresponding freezing primary pump;Connect cold 2
Device controller be connected to form between group series connection with the device controller being connected cooling pump 2;Connect the device controller of cooling tower 1
Series connection it is connected to form between group with the device controller being connected cooling pump 1;The device controller of electric control valve be connected cold 1
Device controller is connected to form series connection, and figure of cold load measurement obtained is according to feeding back to cold;The equipment of electric control valve controls
Device is connected to form series connection with the device controller being connected freezing two stage pump 1, and measurement obtained feeds back to for backwater pressure difference data
Freezing two stage pump;The device controller connecting end is connected to form series connection with the device controller being connected electric control valve, by end
The signals such as end aperture, temperature, flow, pressure feed back to cold, refrigerating water pump, cooling pump by motorized adjustment valve control, need
Illustrate, in secondary pumping system as shown in Figure 6, between chilled water water knockout drum and water collector, often there is no motorized adjustment
Valve, but in its control system, still can be provided with the device controller that electric control valve is corresponding, and this electric control valve sets
Preparation controller can read the operation information of auxiliary device, such as: total flow sensor tube, house steward's temperature sensor, manifold pressure
Sensor etc., and information is fed back to the device controller of the cold station equipment such as cold, freezing two stage pump.
Alternatively, the cold station control system of above-mentioned central air-conditioning also includes: the 3rd cold station equipment set, the 4th cold station equipment collection
Close, the 5th cold station equipment set and the 6th cold station equipment set, the first cold station equipment set includes an electric control valve, second
Cold station equipment set includes first group of cold equipment and second group of cold equipment, and the 3rd cold station equipment set includes first group of cooling
Tower and second group of cooling tower, the 4th cold station equipment set includes first group of cooling pump and second group of cooling pump, the 5th cold station equipment
Set includes first group of refrigerating water pump and second group of refrigerating water pump, and the 6th cold station equipment set includes at least one end, wherein, and end
Device controller connect with the device controller of electric control valve, in parallel between the device controller of first group of cooling tower, the
Parallel connection between the device controller of two groups of cooling towers, in parallel between the device controller of first group of cooling pump, second group of cooling pump
Device controller between in parallel, in parallel between the device controller of first group of cold equipment, the equipment of second group of cold equipment
Parallel connection between controller, in parallel, between the device controller of second group of refrigerating water pump between the device controller of first group of refrigerating water pump
Parallel connection, the device controller of electric control valve connects with the device controller of any one first group of cold equipment, motorized adjustment
The device controller of valve is connected with the device controller of any one second group of cold equipment, any one first group of cold equipment
Device controller connect with the device controller of any one first group of cooling pump, setting of any one second group of cold equipment
Preparation controller is connected with the device controller of any one second group of cooling pump, and the equipment of any one first group of cooling pump controls
Device is connected with the device controller of any one first group of cooling tower, the device controller of any one second group of cooling pump with appoint
The device controller series connection of one second group of cooling tower of meaning, the device controller of any one first group of cold equipment is with any one
The device controller series connection of individual first group of refrigerating water pump, the device controller of any one second group of cold equipment with any one the
The device controller series connection of two groups of refrigerating water pumps.
Fig. 8 is the schematic diagram of another the water system topological according to correlation technique, and Fig. 9 is the most again
The schematic diagram of a kind of cold station control system of central air-conditioning alternatively topology, Fig. 8 does the schematic diagram of a kind of water system form, such as figure
Shown in 8, cold and corresponding cooling tower thereof, refrigerating water pump, cooling pump according to the size of cold, are divided into two groups by this water system, cold
Machine 1, cold 2 and cold 3 are High cooling power, and cold 4, cold 5 are little cold, carry out according to actual refrigeration duty demand size during operation
The collocation of size cold, in the present embodiment, corresponding to the water system form shown in Fig. 8, needs equipment control with connection
Device is attached according to the connected mode shown in Fig. 9, as it is shown in figure 9, wherein, and the equipment control connected with the cold station equipment of type
It is connected between device processed and represents parallel connection, after the cold station equipment parallel connection in groups of type, can be right through consultation between device controller
Refrigerating capacity, flow etc. are optimized distribution;In the device controller of different groups, any one equipment connection is connected, and represents not
With the series connection between the device controller of group, in fig .9, cold, refrigerating water pump, refrigerating water pump, cooling tower are divided into separate
Two groups, wherein, cooling tower 1, cooling tower 2, cooling tower 3 are first group of cooling tower, and cooling tower 4, cooling tower 5 are second group of cooling
Tower;Cold 1, cold 2, cold 3 are first group of cold, and cold 4, cold 5 are second group of cold;Refrigerating water pump 1, refrigerating water pump 2, freezing
Pump 3 is first group of refrigerating water pump, and refrigerating water pump 4, refrigerating water pump 5 are second group of refrigerating water pump;Cooling pump 1, cooling pump 2, cooling pump 3 are first
Group cooling pump, cooling pump 4, cooling pump 5 are second group of cooling pump, connect with first group of equipment of type, such as cold, cooling tower, cold
But between the device controller of pump, refrigerating water pump, respectively parallel connection in groups, connects the device controller of cooling tower 1 and is connected cooling pump 1
Device controller be connected to form between group series connection, connect the device controller of cold 2 and the device controller phase being connected cooling pump 2
Even connecting between formation group, the device controller connecting cold 3 is connected to form between group string with the device controller being connected refrigerating water pump 3
Connection;Connect with second group of equipment of type, as cold, cooling tower, cooling pump, refrigerating water pump device controller between respectively and be unified into
Group, the device controller connecting cooling tower 4 is connected to form between group series connection, connects cold 5 with the device controller being connected cooling pump 4
Device controller be connected to form between group series connection with the device controller being connected cooling pump 5, connect the device controller of cold 4 with
The device controller connecting refrigerating water pump 4 is connected to form between group series connection;Connect electric control valve device controller be connected cold 1
Device controller and connect the device controller of cold 4 and be connected to form series connection, measure the figure of cold load that obtains according to after, press
Refrigeration duty is assigned as two parts by the principle according to energy saving optimizing, is supplied respectively to two groups of cold;Connect end device controller with
The device controller connecting electric control valve is connected to form series connection, by signals such as end aperture, temperature, flow, pressure by electricity
Dynamic governor valve control device feeds back to two groups of cold, refrigerating water pump, cooling pumps.
In an embodiment, for different water system forms, if the quantity of equipment in parallel changes, it is only necessary to even
The connection connecing device controller adjusts accordingly, and does not affect the overall operation of system, water system shape as shown in Figure 2
In formula, if cold 4 breaks down, then disconnect Fig. 3 connects cold 3 with the connection being connected cold 4, do not interfere with
Cold 1, cold 2, cold 3 properly functioning, when cold 4 is keeped in repair complete, then cold 3 is connected with order wire again with cold 4
Connecing, cold 4 can rejoin in control system.
In embodiments of the present invention, use a cold station equipment to connect the mode of a device controller, set by cold station
Standby device controller regulates the operational factor of this cold station equipment, and by the device controller of dissimilar next cold station equipment
Between be connected by communication, reach the purpose coordinating to control the cold station of central air-conditioning, thus decrease the cold station of central air-conditioning and automatically control and be
System wiring, networking configuration and debugging efforts, it is to avoid control program is developed again for different water system forms,
And then it is big to solve central air-conditioning Leng Zhan automatic control system factory internal control program development amount, field connection, networking configuration and adjust
The big technical problem of workload of examination, it is achieved that the technology of the large-scale standardized exploitation of central air-conditioning cold station automatic control system
Effect.
The described unit illustrated as separating component can be or may not be physically separate, shows as unit
The parts shown can be or may not be physical location, i.e. may be located at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be selected according to the actual needs to realize the purpose of the present embodiment scheme.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. the cold station control system of central air-conditioning, it is characterised in that including:
First cold station equipment set, including at least one the first cold station equipment, each described first cold station equipment connects one the
One device controller, in parallel between the described first cold station equipment in described first cold station equipment set, described first equipment control
Device processed is for regulating the operational factor of the described first cold station equipment of connection;
Second cold station equipment set, including at least one the second cold station equipment, each described second cold station equipment connects one the
Two device controllers, in parallel between the described second cold station equipment in described second cold station equipment set, described second equipment control
Device processed is used for regulating the operational factor of the described second cold station equipment of connection,
Wherein, described second device controller is connected with described first device controller communication, described second cold station equipment and institute
Stating the first cold station equipment is different types of cold station equipment.
The cold station control system of central air-conditioning the most according to claim 1, it is characterised in that described system also includes:
First object controller, described first object controller is with described first cold station equipment set any one of
Described first device controller that one cold station equipment is connected;
Second target controller, described second target controller is with described second cold station equipment set any one of
Described second device controller that two cold station equipments are connected,
Wherein, described first object controller and described second target controller serial communication.
The cold station control system of central air-conditioning the most according to claim 1, it is characterised in that described first cold station equipment also wraps
Including the first auxiliary device, described first device controller is additionally operable to be controlled the operational factor of described first auxiliary device.
The cold station control system of central air-conditioning the most according to claim 3, it is characterised in that
When described first cold station equipment is cold, described first auxiliary device includes freezing Inlet and outlet water temperature sensor, freezing
Side electrically operated valve, cold side electrically operated valve;
When described first cold station equipment is water pump, described first auxiliary device includes pressure transducer, temperature sensor;
When described first cold station equipment is cooling tower, described first auxiliary device includes cooling tower Inlet and outlet water electrically operated valve, cold
But tower Inlet and outlet water temperature sensor, outdoor temperature humidity sensor;
When described first cold station equipment is electric control valve, described first auxiliary device includes total flow sensor tube, house steward
Temperature sensor, manifold pressure sensor.
The cold station control system of central air-conditioning the most according to claim 1, it is characterised in that described first device controller adds
Being loaded with the data base of pre-set categories information collection, the data base of described pre-set categories information collection and described first device controller are connected
The classification of the described first cold station equipment connect matches.
The cold station control system of central air-conditioning the most according to claim 5, it is characterised in that described pre-set categories information collection
Data base at least includes device type, performance parameter, the running status of described first cold station equipment, manually sets information, warning
Information, auxiliary device running state information.
The cold station control system of central air-conditioning the most according to claim 1, it is characterised in that described system also includes:
3rd cold station equipment set, the 4th cold station equipment set, the 5th cold station equipment set and the 6th cold station equipment set, described
First cold station equipment set includes an electric control valve, and described second cold station equipment set includes multiple cold equipment, described
3rd cold station equipment set includes that multiple cooling tower, described 4th cold station equipment set include multiple cooling pump, described 5th cold
Station equipment set includes that multiple refrigerating water pump, described 6th cold station equipment set include at least one end,
Wherein, in parallel between the device controller of the plurality of cold equipment, the device controller between the plurality of cooling tower
Between in parallel, in parallel between the device controller between the plurality of cooling pump, the device controller of the plurality of refrigerating water pump it
Between in parallel, the device controller of described end is connected with the device controller of described electric control valve, described electric control valve
Device controller is connected with the device controller of any one of cold equipment, the equipment control of any one of cold equipment
Device processed is connected with the device controller of any one of cooling pump, and the device controller of any one of cooling pump is with any
The device controller series connection of one described cooling tower, the device controller of any one of cold equipment is with any one of
The device controller series connection of refrigerating water pump.
The cold station control system of central air-conditioning the most according to claim 1, it is characterised in that described system also includes:
3rd cold station equipment set, the 4th cold station equipment set, the 5th cold station equipment set and the 6th cold station equipment set, described
First cold station equipment set includes an electric control valve, and described second cold station equipment set includes multiple cold equipment, described
3rd cold station equipment set includes that multiple cooling tower, described 4th cold station equipment set include multiple cooling pump, described 5th cold
Station equipment set includes that multiple refrigerating water pump, described 6th cold station equipment set include at least one end,
Wherein, in parallel between the device controller of the plurality of cold equipment, the device controller between the plurality of cooling tower
Between in parallel, the device controller of described end is connected with the device controller of described electric control valve, and each described cold sets
For being in series with a corresponding described cooling pump, and each described cold equipment is gone here and there mutually with a corresponding described refrigerating water pump
Connection.
The cold station control system of central air-conditioning the most according to claim 1, it is characterised in that described system also includes:
3rd cold station equipment set, the 4th cold station equipment set, the 5th cold station equipment set and the 6th cold station equipment set, described
First cold station equipment set includes that at least one end, described second cold station equipment set include multiple cold equipment, described
Three cold station equipment set include that multiple cooling tower, described 4th cold station equipment set include multiple cooling pump, described 5th cold station
Cluster tool includes multiple freezing primary pump, and described 6th cold station equipment set includes multiple freezing two stage pump,
Wherein, the device controller of described end is connected with the device controller of electric control valve, setting of the plurality of cooling tower
Parallel connection between preparation controller, in parallel between the device controller of the plurality of cooling pump, the equipment control of the plurality of cold equipment
Parallel connection between device processed, in parallel between the device controller of the plurality of freezing two stage pump, and any one freezing two stage pump
Device controller is connected with the device controller of described electric control valve, and the device controller of any one cooling tower is with any one
The device controller series connection of individual cooling pump, the device controller of any one of cooling pump sets with any one of cold
Preparation controller is connected, and the device controller of each cold is connected with the device controller of corresponding freezing primary pump.
The cold station control system of central air-conditioning the most according to claim 1, it is characterised in that described system also includes:
3rd cold station equipment set, the 4th cold station equipment set, the 5th cold station equipment set and the 6th cold station equipment set, described
First cold station equipment set includes that an electric control valve, described second cold station equipment set include first group of cold equipment and
Two groups of cold equipment, described 3rd cold station equipment set includes first group of cooling tower and second group of cooling tower, described 4th cold station
Cluster tool include first group of cooling pump and second group of cooling pump, described 5th cold station equipment set include first group of refrigerating water pump and
Second group of refrigerating water pump, described 6th cold station equipment set includes at least one end,
Wherein, the device controller of described end is connected with the device controller of described electric control valve, described first group of cooling
Parallel connection between the device controller of tower, in parallel between the device controller of described second group of cooling tower, described first group of cooling pump
Device controller between in parallel, in parallel between the device controller of described second group of cooling pump, described first group of cold equipment
Device controller between in parallel, in parallel between the device controller of described second group of cold equipment, described first group of refrigerating water pump
Device controller between in parallel, in parallel between the device controller of described second group of refrigerating water pump, setting of described electric control valve
Preparation controller is connected with the device controller of any one of first group of cold equipment, and the equipment of described electric control valve controls
Device is connected with the device controller of any one of second group of cold equipment, setting of any one of first group of cold equipment
Preparation controller is connected with the device controller of any one of first group of cooling pump, any one of second group of cold equipment
Device controller connect with the device controller of any one of second group of cooling pump, any one of first group of cooling
The device controller of pump is connected with the device controller of any one of first group of cooling tower, any one of second group cold
But the device controller of pump is connected with the device controller of any one of second group of cooling tower, any one of first group
The device controller of cold equipment is connected with the device controller of any one of first group of refrigerating water pump, and any one of
The device controller of two groups of cold equipment is connected with the device controller of any one of second group of refrigerating water pump.
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CN106500280A (en) * | 2016-12-28 | 2017-03-15 | 珠海格力电器股份有限公司 | A kind of control system and control method at the cold station of central air-conditioning |
CN109945362A (en) * | 2019-03-19 | 2019-06-28 | 张军民 | Heating ventilation air-conditioning system |
CN110118423A (en) * | 2018-02-05 | 2019-08-13 | 清云建设有限公司 | A kind of central air-conditioning energy-saving control system |
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