CN206094287U - Heat exchange station automatic control system - Google Patents
Heat exchange station automatic control system Download PDFInfo
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- CN206094287U CN206094287U CN201620882013.0U CN201620882013U CN206094287U CN 206094287 U CN206094287 U CN 206094287U CN 201620882013 U CN201620882013 U CN 201620882013U CN 206094287 U CN206094287 U CN 206094287U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model belongs to the technical field of heat exchange station control system, a disclosed heat exchange station automatic control system, include: heat exchange station's temperature adjustment control device, circulation system automatic control device, control circuit automatic control device is adjusted in the moisturizing, above -mentioned three controlling means's information acquisition module's temperature data collection end is continuous with the temperature sensor in the heat exchanger group, information acquisition module's pressure collecting end is continuous with the pressure sensor in the heat exchanger group, information acquisition module's output passes through the analysis processes module and links to each other with touch display screen, the analysis processes module is passed through control module and is once inclined the electrical control valve, the relief valve, water supplying valve links to each other, control module's pump execution end links to each other with circulating water pump in the heat exchanger group, control module's frequency conversion end links to each other with benefit pump variable frequency ware, circulation pump variable frequency ware, the utility model discloses guarantee the thermodynamic equilibrium of heat supply network, guaranteed the operation of heating system safe and reliable ground, realized remote monitoring under unmanned on duty's the condition.
Description
Technical field
The utility model belongs to heat exchange station control system technical field, relates generally to a kind of heat exchange station automatic control system.
Background technology
Central heating is the energy-conservation and environmental practice that country widelys popularize, with the continuous expansion of concentrated supply of heating in the city scale
Greatly, the management heat distribution pipe network of science has very great economic and social benefit.Heat exchange station and hot water pipe net are connection thermals source
With the important step of heat user, there is very important effect in whole heating system.
At present domestic heating system is relatively backward, is embodied in that heating quality is poor, i.e., room temperature is uneven in temperature, and system is imitated
Rate is low, and user is unable to sets itself and adjusts room temperature etc.；Lack control device, only simple regulating measure does not have
Thermostat, heat supply is not enough and it is excessive when, without effective regulating measure；Lack measurement means, cause to use without meterage
Family not actively energy-conservation, also results in administrative staff and lacks data and carry out operational management.
The content of the invention
To solve above-mentioned technical problem, the purpose of this utility model is to propose a kind of heat exchange station automatic control system.
The utility model is adopted the following technical scheme that to complete its invention task：
A kind of heat exchange station automatic control system, including：The temperature adjustment control device of exchange heat stations, the circulation of exchange heat stations
System automaton, the moisturizing for exchanging heat stations adjusts control loop automaton；The temperature adjustment control of exchange heat stations
Device processed, circulatory system automaton, moisturizing adjust control loop automaton by information acquisition module, analysis
Reason module, control module, touch display screen composition, the temperature signal collection end of information acquisition module passes through holding wire and is fixed on
Each temperature sensor of the primary side on heat-exchange unit with secondary side for backwater is connected, by holding wire and the temperature of outdoor environment
Sensor is connected, the pressure signal collection terminal of information acquisition module by holding wire and the primary side being fixed on heat-exchange unit and
Secondary side is connected for each pressure sensor of backwater, and the output end of information acquisition module is shown by analysis and processing module with touching
Screen is connected, and the control end of analysis and processing module is connected by control line with control module, and the valve actuating station of control module is led to respectively
Cross cable to be connected with the primary side electric control valve control end on heat-exchange unit, relief valve control end, water compensating valve control end, control
The pump actuating station of molding block respectively by No. 1 small pump on cable and heat-exchange unit, No. 2 small pumps, No. 1 water circulating pump, 2
Number water circulating pump is connected；The frequency conversion actuating station of control module is respectively by cable and small pump frequency converter, water circulating pump frequency conversion
Device is connected；Small pump inverter output terminal is connected respectively by cable with No. 1 small pump, No. 2 small pumps；Water circulating pump frequency conversion
Device output end is connected respectively by cable with No. 1 water circulating pump, No. 2 water circulating pumps；Analysis and processing module transmission end is by letter
Number line is connected with remote monitoring interface.
A kind of heat exchange station automatic control system, the temperature adjustment control device of the exchange heat stations, by heat exchanger primary side
Electric control valve, the constant supply water temperature sensor of secondary side, analysis and processing module, regulating valve PID module, control module,
Touch-screen is constituted, and the touch-screen is by analysis and processing module, regulating valve PID module, control module and heat exchanger primary side
Electric control valve is connected；The temperature acquisition end of analysis and processing module is by holding wire and the constant supply water temperature sensor of secondary side
Even；The setting membrane keyboard of supply water temperature 1,2,3,4, the pid parameter of regulating valve are provided with the human-computer interaction interface of the touch-screen
Proportional gain, the time of integration, derivative time setting membrane keyboard.
A kind of heat exchange station automatic control system, exchanges the circulatory system automaton of heat stations, by being fixed on heat exchanger
Secondary side pressure of supply water sensor, secondary side pressure of return water sensor, analysis and processing module, regulating valve PID module, control in group
Molding block, water circulating pump, frequency converter, relief valve and touch-screen composition, the touch-screen passes through analysis and processing module, regulating valve
PID modules, control module are connected with frequency converter, and the output end of frequency converter is connected respectively with 1# water circulating pumps, 2# water circulating pumps；Point
The pressure acquisition end of analysis processing module is sensed respectively by holding wire with secondary side pressure of supply water sensor, secondary side pressure of return water
Device is connected, and the control end of analysis and processing module is connected by control module with relief valve；The human-computer interaction interface of the touch-screen
On be provided with secondary side and set for backwater pressure differential resetting membrane keyboard, overpressure protection pressure release setting membrane keyboard, circulating pump PID proportional gains
Determine membrane keyboard, circulating pump PID derivative times and set membrane keyboard.
A kind of heat exchange station automatic control system, the moisturizing for exchanging heat stations adjusts control loop automaton, by fixing
Secondary side pressure of return water sensor, high water tank sensor, analysis and processing module, regulating valve PID module on heat-exchange unit,
Control module, small pump, water compensating valve, frequency converter, touch-screen composition, the touch-screen passes through analysis and processing module, regulating valve PID
Module, control module are connected with frequency converter, and the output end of frequency converter is connected respectively with 1# small pumps, 2# small pumps, 1# small pumps,
The signal end of 2# small pumps is connected respectively by holding wire with control module；The pressure of return water collection terminal of analysis and processing module passes through
Holding wire is connected with secondary side pressure of return water sensor, and the liquid level end of analysis and processing module is sensed by holding wire with high water tank
Device is connected；The control end of analysis and processing module is connected by control module with water compensating valve；The human-computer interaction interface of the touch-screen
On be provided with secondary side pressure of return water setting membrane keyboard, water tank lacks water protection setting membrane keyboard, small pump PID proportional gain settings
Membrane keyboard, small pump PID derivative times set membrane keyboard.
A kind of heat exchange station automatic control system, the analysis and processing module includes：At Effective judgement processing module, filtering
Reason processing module, magnitude transform processing module, PID calculate processing module, the Effective judgement processing module by filtering at
Reason processing module, magnitude transform processing module calculate processing module and are connected with PID；PID calculate processing module data terminal respectively with
Memory module, touch display screen are connected.
A kind of heat exchange station automatic control system, the control module by drive water pump module, drive adjust valve module, control
Frequency converter module, alarm decision module composition.
A kind of heat exchange station automatic control system, the touch display screen, including graphical human-computer interaction interface, man-machine interaction
It is provided with supply water temperature setting membrane keyboard, the pid parameter setting membrane keyboard of regulating valve, the pid parameter of water pump on interface to set and touch
Touch key and pressure of return water membrane keyboard, for backwater pressure reduction membrane keyboard, o-volt protection value membrane keyboard.
A kind of heat exchange station automatic control system, the remote monitoring interface is by RS485 data communication interfaces, analog output
Interface, integrated alarm digital-quantity output interface composition.
Because using technical scheme as above, the utility model has following superiority：
The utility model heat exchange station automatic control system realizes remote monitoring in the case of unmanned, it is ensured that heat supply network
Thermodynamic equilibrium, it is ensured that heating system can safely and reliably be run.The system has the special feature that as follows：1. reliability is employed
Property it is high, using simple industrial control equipment PLC and frequency converter as major control equipment, using the company of frequency converter in range of flow
Continuous regulation combines with the regulation of water pump, it is ensured that constant pressure water supply；2. system takes frequency control way to realize that constant pressure, constant temperature are supplied
Water, energy-saving effect is obvious；3. PID regulative modes are adopted, and water pressure fluctuations are little, and response is fast；4. realize replenishing water tank of water failure, from
Water is cut off the water, system blackout, circulating pump are abnormal, the error protection that once net is cut off the water etc..
Description of the drawings
Fig. 1 is heat exchange station system schematic diagram；
Fig. 2 is heat exchange station automatic control system schematic diagram；
Fig. 3 is the control system schematic diagram of primary side electric control valve；
Fig. 4 is the control system schematic diagram of the circulatory system；
Fig. 5 is that moisturizing adjusts control loop system diagram.
Specific embodiment
The utility model is illustrated with reference to the drawings and specific embodiments：
As shown in Fig. 1,2,3,4,5, a kind of heat exchange station automatic control system, including：The temperature adjustment control of exchange heat stations
The circulatory system automaton of device, exchange heat stations, the moisturizing for exchanging heat stations adjusts control loop automaton；It is right
The temperature adjustment control device of heat exchange station, circulatory system automaton, moisturizing adjust control loop automaton by
Information acquisition module, analysis and processing module, control module, touch display screen composition, the temperature signal collection of information acquisition module
Each temperature sensor of the end by holding wire with the primary side and secondary side being fixed on heat-exchange unit for backwater is connected, by letter
Number line is connected with the temperature sensor of outdoor environment, information acquisition module pressure signal collection terminal is by holding wire and is fixed on
Each pressure sensor of the primary side on heat-exchange unit with secondary side for backwater is connected, and the output end of information acquisition module is by dividing
Analysis processing module is connected with touch display screen, and the control end of analysis and processing module is connected by control line with control module, control
The valve actuating station of module is respectively by the primary side electric control valve control end on cable and heat-exchange unit, relief valve control
End, water compensating valve control end are connected, the pump actuating station of control module respectively by No. 1 small pump on cable and heat-exchange unit, 2
Number small pump, No. 1 water circulating pump, No. 2 water circulating pumps are connected；The frequency conversion actuating station of control module is respectively by cable and moisturizing
Pump frequency conversion device, water circulating pump frequency converter are connected；Small pump inverter output terminal is respectively by cable and No. 1 small pump, No. 2 benefits
Water pump is connected；Water circulating pump inverter output terminal is connected respectively by cable with No. 1 water circulating pump, No. 2 water circulating pumps；Analysis
Processing module transmission end is connected by holding wire with remote monitoring interface.
Heat exchange station refers to and is connected to once between net and secondary network, and equipped with relevant device, instrument, the control being connected with user
The machine room of control equipment.It is used to adjusting and keeping heating medium parameter（Pressure, temperature and flow）, make heat supply, reach safe Jing with heat
Ji operation, is the regulation hinge of heat exchange, heat distribution.
Heat exchange station is typically made up of heat-exchange system, the circulatory system, water charging system.Heat-exchange system mainly includes board-like heat exchange
Device and primary side electric control valve, carry out primary side and secondary side heat exchange and control heat exchange amount, to maintain secondary side to supply
Coolant-temperature gage；The circulatory system mainly includes 2 water circulating pumps and relief valve, it is ensured that to the pressure of supply water that user is constant；Water charging system
Mainly include 2 small pumps, water tank, moisturizing magnetic valves, to secondary side moisturizing, make to be full of water in pipeline and pressure of return water is stablized
One steady state value.
In control process, need to gather substantial amounts of physical quantity, such as pressure, temperature, flow, liquid level analog quantity parameter,
And Real-time Collection and process are carried out to these parameters by control module.Automatically controlling for heat exchange station, is to realize whole cell
The monitor in real time and Automatic Control of heat exchange heating system.
Heat exchange station automatic control system data acquisition, automatically control, parameter storage, real-time communication, fault alarm etc.
Function.Mainly have sensor and actuator group, information acquisition module, data processing module, control module, frequency converter, touch it is aobvious
Several functional block compositions such as display screen.
Component relationship between each functional module will be as shown in Fig. 2 information acquisition module will be exchanged heat by various senser elements
The parameters collection of unit is converted into the incoming analysis and processing module of the discernible data signal of system；Analysis and processing module passes through
Carry out Effective judgement, filtering process, magnitude transform, PID calculating etc. to gathered data to process after conversion, by status signal（Pressure
Power, temperature etc.）Carry out data storage and send into touch display screen parameter to show；Control module is combined by the data to storing and changed
Heat engine group difference operating condition is analyzed judgement, sends instruction and arrives the equipment such as corresponding water pump, regulating valve, frequency converter respectively,
Anomaly parameter to occurring carries out alarm decision and alarm state information is passed to into touch display screen parameter showing；Touch and show
Screen can be patterned man-machine interaction, and operator on duty can carry out supply water temperature setting by touch, the pid parameter of regulating valve sets
The pid parameter setting of fixed, water pump and pressure of return water, for the setting of backwater pressure reduction, o-volt protection value etc., it is total with technological process
Figure, regulating loop, setting value show, alarm logging, and last trend and memory scan function with historical data；Long-range prison
Control interface, there is provided the multiple interfaces such as RS485 data communication interfaces, analog output interface circuit, integrated alarm digital-quantity output interface
Facilitate remote monitoring.
Regulation control of the heat exchange station system to temperature seeks to ensure that secondary side has a constant supply water temperature, in heat exchange
The major function of the electric control valve that device primary side is installed is by adjusting valve opening, adjusting a pipe network hot water flow, control
The secondary heating load of heat exchanger, it is ensured that heating quality.The control principle of primary side electric control valve is as shown in figure 3, controller
It is compared with the secondary network supply water temperature of reality according to the temperature that touch display screen is arranged, and carries out PID arithmetic, computing is tied
Fruit output is to regulating valve（The aperture of 4-20mA signals correspondence adjustment type motor-driven valve 0 ~ 100%）, by adjusting primary side motorized adjustment
The aperture of valve is realizing stablizing for temperature.
(1) control manually
Manual control mode manually selects control model for Field Force（Manually）, on the touchscreen input control valve open
Degree setting value, so as to change the output valve of control module 4-20mA, when the aperture setting value in motor-driven valve increases, controls mould
Block continues the value for lentamente increasing mA, until after the corresponding mA values of output setting value, adjustment type motor-driven valve opens big opening to setting
Degree；When the aperture setting value in adjustment type motor-driven valve reduces, control module is persistently reduced slowly the value of mA, until output
After the corresponding mA values of setting value, adjustment type motor-driven valve is closed to the aperture of setting.（When system dead electricity, electric control valve is closed）
(2) automatically control
Automatic control mode manually selects control model for Field Force（Automatically）, it is automatic with PID tracing control functions
Primary side high-temperature water pipe network outlet electric control valve is controlled, the automatic control of heat exchanger secondary side hot water outlet temperature is realized
System, meets the requirement of user's room temperature.
2. the circulatory system is automatically controlled
The circulatory system is mainly made up of water circulating pump, frequency converter, relief valve etc., and its Main Function is responsible for secondary network system
The confession backwater pressurization of system, to meet hot water pipeline terminal user is supplied to.Automatically controlling for the circulatory system is by pressure signal control
Frequency converter output processed, so as to the control for controlling the rotating speed of circulating pump to realize to secondary network pressure of supply water, to maintain pressure differential resetting
Value.When a circulating pump cannot reach required pressure by frequency conversion pressurization, controller can make another stand-by pump input
It is final to realize more intelligentized Isobarically Control using being pressurizeed.Relief valve can be controlled manually and automatically, work as secondary side
Pressure of return water exceed setting value（Open window in touch display screen, the tangible modification of operating personnel）When, automatically open up pressure release
Valve；Also dependent on needing manual unlocking relief valve, it is to avoid secondary pressure is excessive, reaches the effective protection to pipeline.Each function
Component relationship between module is as shown in Figure 4.
(1) the VFC of circulating pump
The VFC of circulating pump adjusts control using PID, is automatically electronic to circulating pump with PID tracing control functions
The frequency of machine is controlled, and realizes constant control of the heat exchanger secondary side hot water pipe net for backwater pressure reduction, and meeting user's room temperature will
Seek and reached the effect of energy-conservation, consumption reduction, environmental protection.
When the secondary pressure reduction of actually detected value increases with preset value difference, frequency converter output frequency rises, and circulates pump work
In high-frequency state, secondary network pressure of return water rises；When actually detected value secondary network pressure reduction reduces with preset value difference, frequency conversion
Device output frequency declines, and circulating pump is operated in low frequency state, rises under secondary network pressure of return water.Go round and begin again, complete to circulation
The PID tracking of pump is automatically controlled, and makes circulating pump be operated in a more stable frequency state, realizes heat exchanger secondary side hot water
Constant control of the pipe network for backwater pressure reduction.
The control of heat exchange station system is a multi-level complex control system, and it is not merely with PID tracking control technologies
The temperature and pressure of water is controlled with reference to electric control valve and frequency converter, also at the information using control module to collection
Reason, and the control that 1# circulating pumps, 2# circulating pumps switch mutually is sent when circulation failure of pump or work period overlength.
1. the frequency conversion of circulating pump, the switching of power frequency working condition：
Circulating pump priority task, when control module receives the fault-signal of frequency converter, is controlled in variable frequency work state
Circulating pump is switched to power frequency working condition, and control frequency converter quits work and sends police instruction.
2. the standby switching control of 1# circulating pumps and 2# circulating pumps：
No matter circulating pump is operated in frequency conversion or power frequency state, when breaking down in 1# circulation pump works, control module
Control 2# circulation pump works, and make 1# circulating pumps quit work, carry out police instruction.Vice versa.
In heat exchange station run duration, to guarantee that circulating pump corrective maintenance work is carried out, make equipment in shape, control
Working time timing of the module to 1# pumps, controls 2# pump works, 1# pumps and quits work entrance after waiting the working time for reaching setting
Maintenance state.This control mode improves hommization, intelligence degree, is conducive to corrective maintenance, extends the service life of pump.
(3) the control of relief valve
Can manually and automatically be controlled, the operation button on control cabinet panel is placed in manual position and starts pressure release, in operation
Personnel or operator on duty have found that secondary side ductwork pressure is too high（More than safety value）When can manual pressure release；It is placed in automatic position, two
Secondary side pressure of return water opens relief valve higher than the overpressure protection sluicing pressure of touch display screen setting, less than protection pressure, closes
Relief valve.Protection main pipe rail that so can be manually strong with automatic two ways and user's pipeline, avoid high pressure to pipe
Road impact is damaged, and brings unnecessary safety and property loss.By the control to relief valve, maintain secondary network hydraulic pressure steady
It is scheduled in safe range.Control principle is shown in the control system figure of Fig. 4 circulatory systems.
3. moisturizing adjusts control loop
Moisturizing adjusts control loop and is mainly made up of small pump, frequency converter, water compensating valve, water tank etc., and its Main Function is
Under making supplement, accident conditions of the initial operating stage secondary pipe network full of water and the normal water leakage rate of run duration heating system
Moisturizing, is the necessary guarantee of heating system operation circulation to maintain the normal water supply pressure of secondary pipe network.Moisturizing regulating loop
It is the unlatching of small pump to be controlled by secondary pipe network pressure of return water sensor and frequency converter, is adjusted and is stopped to automatically control, real
The level pressure of existing secondary pressure of return water is automatically controlled；The water supply installation of water compensating valve and water tank composition provides strong guarantee to moisturizing.
The operation principle that moisturizing adjusts control loop is as shown in Figure 5.
(1) moisturizing pump frequency converting speed regulating constant DP control
Moisturizing pump frequency converting speed regulating constant DP control is changed according to the supplementing water pressure of heating system, changes moisturizing pumping source frequency
Rate, smooths and adjusts moisturizing revolution speed without polar region, and then adjusts rate of water make-up in time, realizes the constant of system return pressure.Small pump
VFC be also adopted by PID and adjust control, pid algorithm is same（Formula 3-3）, pid parameter is configured in advance.
See that Fig. 5 moisturizings adjust control loop system diagram.As seen from the figure, pressure transmitter is by the secondary network pressure of return water measured
Signal is fed back in processing module, with the given value signal of pressure（Secondary network pressure of return water sets）Compare, calculate defeated through PID
Go out a signal input in frequency converter, frequency converter is exported and give moisturizing pump motor automatically further according to the size of input signal values
Corresponding frequency values (0-50Hz), control to adjust the rotating speed of small pump, moisturizing pump discharge is changed therewith.When moisturizing pump discharge pressure
Power（That is secondary network pressure of return water）During less than setting pressure value, frequency of supply increases, and moisturizing revolution speed is improved, flow increase；Instead
It, flow is then reduced.If it exceeds setting pressure value then can autostop.Therefore, by controlling moisturizing revolution speed, moisturizing is changed
Pump discharge, and then ensure that heating system pressure is constant.
(2) small pump standby switching is automatically controlled
Water charging system has two small pumps, standby each other, controls circulating pump of the transfer principle with the circulatory system.Still using control
Molding block is processed, analyzed to the information for gathering, logic judgment and when moisturizing failure of pump or work period overlength
Send 1# small pumps, the control that 2# small pumps switch each other.
1. the frequency conversion of small pump, the switching of power frequency working condition：
Small pump priority task, when control module receives the fault-signal of frequency converter, is controlled in variable frequency work state
Small pump is switched to power frequency working condition, and control frequency converter quits work and sends police instruction.
2. the standby switching control of 1# small pumps and 2# small pumps：
No matter small pump is operated in frequency conversion or power frequency state, when breaking down in 1# moisturizing pump works, control module
According to the information processing control 2# moisturizing pump works for receiving, and make 1# small pumps quit work, carry out police instruction.Otherwise also
So.
In heat exchange station run duration, to guarantee that small pump corrective maintenance work is carried out, make equipment in shape, control
Working time timing of the module to 1# pumps, sends switching control 2# pump works, 1# pumps and stops after waiting the working time for reaching setting
Work enters maintenance state.
(3) the control of replenishing water tank of water
Replenishing water tank of water is controlled：Replenishing water tank of water bottom sides install a liquid level sensor, for measuring cistern water level.Water tank
One magnetic valve is installed, for water tank moisturizing on inlet channel.The opens solenoid valve when cistern water level is less than setting, works as Water in Water Tank
Magnetic valve is closed in position higher than when setting.Realize automatic water-supply, it is ensured that the timely moisturizing of secondary side, when liquid level is too low, send warning,
Staff is reminded to overhaul in time, it is to avoid secondary side water shortage occur, unnecessary damage is caused to system, play and effectively protect
Effect.
4. man-machine interactive system
Man-machine interactive system is mainly made up of touch display screen, is led to host computer processing module by communicating topological structure
News, complete data exchange, can both monitor the ruuning situation of heat-exchange unit, it is also possible to adjust the running status of heat-exchange unit.Touch
The interface for touching display screen shows including technological process total figure, regulating loop shows, setting value shows, alarm logging, historical trend
Figure shows, can carry out storage and retrieval to historical data.
Skill flow process total figure described in work shows, the carrying out practically of grasp heat-exchange unit that can be promptly and accurately in order to operator
Situation, can carry out real-time diagnosis to the failure of field apparatus.
All of safe regulating loop shows, is easy to operator to change control parameter, flexible to operation and with protection
Function.
Claims (8)
1. a kind of heat exchange station automatic control system, is characterized in that：Including：Temperature adjustment control device, the heat exchanging of exchange heat stations
The circulatory system automaton stood, the moisturizing for exchanging heat stations adjusts control loop automaton；The heat exchange station
Temperature adjustment control device, circulatory system automaton, moisturizing adjust control loop automaton by information gathering
Module, analysis and processing module, control module, touch display screen composition, the temperature signal collection end of information acquisition module is by letter
The each temperature sensor of number line with the primary side and secondary side being fixed on heat-exchange unit for backwater is connected, by holding wire and room
The temperature sensor of external environment is connected, and the pressure signal collection terminal of information acquisition module passes through holding wire and is fixed on heat-exchange unit
On primary side and secondary side be connected for each pressure sensor of backwater, the output end of information acquisition module is by analyzing and processing mould
Block is connected with touch display screen, and the control end of analysis and processing module is connected by control line with control module, the valve of control module
Actuating station is respectively by primary side electric control valve control end, relief valve control end, the water compensating valve on cable and heat-exchange unit
Control end is connected, the pump actuating station of control module respectively by No. 1 small pump on cable and heat-exchange unit, No. 2 small pumps,
No. 1 water circulating pump, No. 2 water circulating pumps are connected；The frequency conversion actuating station of control module respectively by cable and small pump frequency converter,
Water circulating pump frequency converter is connected；Small pump inverter output terminal is connected respectively by cable with No. 1 small pump, No. 2 small pumps；
Water circulating pump inverter output terminal is connected respectively by cable with No. 1 water circulating pump, No. 2 water circulating pumps；Analysis and processing module
Transmission end is connected by holding wire with remote monitoring interface.
2. a kind of heat exchange station automatic control system according to claim 1, is characterized in that：The temperature of the exchange heat stations is adjusted
Section control device, by the constant supply water temperature sensor of the electric control valve of heat exchanger primary side, secondary side, analyzing and processing mould
Block, regulating valve PID module, control module, touch-screen composition, the touch-screen passes through analysis and processing module, regulating valve PID mould
Block, control module are connected with the electric control valve of heat exchanger primary side；The temperature acquisition end of analysis and processing module passes through holding wire
The supply water temperature sensor constant with secondary side connects；Be provided with the human-computer interaction interface of the touch-screen supply water temperature 1,2,3,
4 setting membrane keyboards, the pid parameter proportional gain of regulating valve, the time of integration, derivative time setting membrane keyboard.
3. a kind of heat exchange station automatic control system according to claim 1, is characterized in that：The circulatory system of exchange heat stations is certainly
Dynamic control device, by the secondary side pressure of supply water sensor, secondary side pressure of return water sensor, analysis that are fixed on heat-exchange unit
Processing module, regulating valve PID module, control module, water circulating pump, frequency converter, relief valve and touch-screen composition, the touch
Screen is connected by analysis and processing module, regulating valve PID module, control module with frequency converter, the output end of frequency converter respectively with 1#
Water circulating pump, 2# water circulating pumps are connected；The pressure acquisition end of analysis and processing module supplies hydraulic pressure by holding wire and secondary side respectively
Force snesor, secondary side pressure of return water sensor are connected, and the control end of analysis and processing module is by control module and relief valve phase
Even；It is provided with secondary side on the human-computer interaction interface of the touch-screen to set for backwater pressure differential resetting membrane keyboard, overpressure protection pressure release
Determine membrane keyboard, circulating pump PID proportional gain settings membrane keyboards, circulating pump PID derivative times and set membrane keyboard.
4. a kind of heat exchange station automatic control system according to claim 1, is characterized in that：The moisturizing of exchange heat stations adjusts control
Loop automaton processed, by the secondary side pressure of return water sensor, high water tank sensor being fixed on heat-exchange unit, divides
Analysis processing module, regulating valve PID module, control module, small pump, water compensating valve, frequency converter, touch-screen composition, the touch-screen
It is connected with frequency converter by analysis and processing module, regulating valve PID module, control module, the output end of frequency converter is mended respectively with 1#
Water pump, 2# small pumps are connected, and 1# small pumps, the signal end of 2# small pumps are connected respectively by holding wire with control module；Analysis
The pressure of return water collection terminal of processing module is connected by holding wire with secondary side pressure of return water sensor, the liquid of analysis and processing module
Position end is connected by holding wire with high water tank sensor；The control end of analysis and processing module is by control module and water compensating valve phase
Even；Secondary side pressure of return water setting membrane keyboard, water tank lacks water protection setting are provided with the human-computer interaction interface of the touch-screen
Membrane keyboard, small pump PID proportional gain settings membrane keyboards, small pump PID derivative times set membrane keyboard.
5. a kind of heat exchange station automatic control system according to claim 1, is characterized in that：The analysis and processing module bag
Include：Effective judgement processing module, filtering process processing module, magnitude transform processing module, PID calculate processing module, described
Effective judgement processing module calculates processing module and is connected by filtering process processing module, magnitude transform processing module with PID；
PID calculates processing module data terminal and is connected with memory module, touch display screen respectively.
6. a kind of heat exchange station automatic control system according to claim 1, is characterized in that：The control module is by driving water
Pump module, driving adjust valve module, control frequency converter module, alarm decision module composition.
7. a kind of heat exchange station automatic control system according to claim 1, is characterized in that：The touch display screen, including
Graphical human-computer interaction interface, is provided with the pid parameter setting of supply water temperature setting membrane keyboard, regulating valve on human-computer interaction interface
Membrane keyboard, the pid parameter of water pump set membrane keyboard and pressure of return water membrane keyboard, touch for backwater pressure reduction membrane keyboard, o-volt protection value
Touch key.
8. a kind of heat exchange station automatic control system according to claim 1, is characterized in that：The remote monitoring interface by
RS485 data communication interfaces, analog output interface circuit, integrated alarm digital-quantity output interface composition.
Priority Applications (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123110A (en) * | 2016-08-16 | 2016-11-16 | 河南柴油机重工有限责任公司 | A kind of heat exchange station automatic control system and method |
| CN107763709A (en) * | 2017-11-23 | 2018-03-06 | 济南金孚瑞供热工程技术有限公司 | A kind of low nitrogen high efficiency burnt gas heating plant of integrated |
| CN110360649A (en) * | 2019-07-04 | 2019-10-22 | 珠海九圆能源设备制造有限公司 | A kind of heat changes station control system |
| CN113531631A (en) * | 2021-07-28 | 2021-10-22 | 杭州英集动力科技有限公司 | Heating power station system utilizing residual pressure head of primary side water supply system and regulation and control method |
-
2016
- 2016-08-16 CN CN201620882013.0U patent/CN206094287U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123110A (en) * | 2016-08-16 | 2016-11-16 | 河南柴油机重工有限责任公司 | A kind of heat exchange station automatic control system and method |
| CN107763709A (en) * | 2017-11-23 | 2018-03-06 | 济南金孚瑞供热工程技术有限公司 | A kind of low nitrogen high efficiency burnt gas heating plant of integrated |
| CN110360649A (en) * | 2019-07-04 | 2019-10-22 | 珠海九圆能源设备制造有限公司 | A kind of heat changes station control system |
| CN113531631A (en) * | 2021-07-28 | 2021-10-22 | 杭州英集动力科技有限公司 | Heating power station system utilizing residual pressure head of primary side water supply system and regulation and control method |
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