CN207689896U - Heat exchange station new controller - Google Patents
Heat exchange station new controller Download PDFInfo
- Publication number
- CN207689896U CN207689896U CN201721895226.8U CN201721895226U CN207689896U CN 207689896 U CN207689896 U CN 207689896U CN 201721895226 U CN201721895226 U CN 201721895226U CN 207689896 U CN207689896 U CN 207689896U
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- heat exchange
- controller
- exchange station
- analog
- station new
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Abstract
The utility model is related to a kind of controllers, particularly disclose a kind of heat exchange station new controller.The heat exchange station new controller includes the central controller of connection power supply, it is characterised in that：The central controller is connected to memory, memory connects touch screen, communication interface, relay output point, analog output, analog input and PID intelligent controls circuit are connected on central controller side by side, communication interface connects supervisory controller, relay output point connects relay, analog output connects frequency converter and electric control valve, and analog input connects temperature sensor and pressure sensor, and PID intelligent controls circuit connects electrically operated valve and water pump.The utility model is simple in structure, facilitates debugging, greatly simplifies the debugging cost of field engineer, and operate conducive to Party A, and remains to meet requirement by modification pattern after end-equipment upgrading, has a extensive future.
Description
（One）Technical field
The utility model is related to a kind of controller, more particularly to a kind of heat exchange station new controller.
（Two）Background technology
Heat exchange station automation control is for ensureing that the high-quality heat supply of heating system, safe operation, economical and energy saving, environmental protection have
There is highly important effect.By automatic control system, can make heat exchange station system centralized watch, comprehensive analysis, coordinated scheduling,
Efficiency is improved, so that heating industry management is changed from extensive style to intensive style, heating industry controlled level is promoted integrally to improve.
The equipment of heat exchange station mainly has plate heat exchanger, secondary side water circulating pump, electric control valve, temperature and pressure transmitter
With water pump control cabinet etc., the control mode of present use is mainly divided to two kinds：（1）It manually controls, it is mainly on duty by property profession
Operating personnel open and control to equipment, and the quality of the operation of equipment depends on the experience of operative employee；（2）It automatically controls,
Main to be controlled using the PLC controller of commercial Application, specific aim is not strong, and programming is complicated, and debugging difficulty is larger；Also there is use
Siemens's Climatix and RWD controller, but it is expensive, and popularization is not strong.
At present on the market common plate change autocontrol mode be using PLC+ touch screens+temperature and pressure transmitter etc., it is simple
The use of PLC is since heat exchange station automatic control must have the parameters such as pressure, temperature the shortcomings that control, and Party A is when in use
Pressure and temperature parameter must can be changed, touch-screen system, cost must thus be used to increase；PLC is to analog quantity simultaneously
Detect and control and must use analog quantity spread module, and letter also more demanding to the signal kinds of sensor, different
Number different expansion module is needed, since the analog quantity of PLC programs complicated, increases cost and debugging difficulty.
It follows that the shortcomings that domestic and international existing controller, is：（1）Not directed specifically to heat exchange stand control；（2）Controller pair
Difficulty is detected and controlled in analog quantity；（3）Become to debug difficult complexity；（4）Touch screen is separately configured, it is of high cost.
（Three）Invention content
The utility model in order to make up for the deficiencies of the prior art, provide it is a kind of it is simple in structure, facilitate debugging, application range
The heat exchange station new controller of light.
The utility model is achieved by the following technical solution：
A kind of heat exchange station new controller includes the central controller of connection power supply, it is characterised in that：The center control
Device is connected to memory, and memory connects touch screen, be connected with side by side on central controller communication interface, relay output point,
Analog output, analog input and PID intelligent controls circuit, communication interface connect supervisory controller, relay output point
Relay is connected, analog output connects frequency converter and electric control valve, and analog input connects temperature sensor and pressure passes
Sensor, PID intelligent controls circuit connect electrically operated valve and water pump.
Quantity and the frequency conversion of heat exchange station circulating pump may be selected per se with the touch screen of one piece of operating aspect in the utility model
With power frequency model selection, internal PID intelligent control circuit, can external analog input, controller has modularization programming principle,
Built-in control program is automatically selected according to different control models, and can be to different control models according to the difference of permission
Program carry out parameter modification.
The more excellent technical solution of the utility model is：
System program, user program and data storage, the comprehensive storage for information and place are provided in the memory
Reason.
The relay output point is five tunnels, and analog output, analog input and PID intelligent controls circuit are three
Road；No. five relay output points are used for control loop water pump and small pump；Three road analog outputs are for controlling frequency converter and electricity
Dynamic regulating valve；Three road analog inputs are used for external temperature and pressure sensor, detect secondary return water temperature, outdoor temperature and confession
Water pressure；Built-in three roads PID intelligent controls circuit controls opening for primary side electrically operated valve according to return water temperature and set temperature
Degree controls the frequency of small pump according to pressure of return water and setting pressure.
It is provided with day/night control model selecting switch or start and stop time switch on the controller, is suitble to enterprises and institutions
The mountains such as unit and centralized office work, it is of low cost and easy to operate, property operator is required low
It is provided with the gold capacitance with power sources in parallel on the controller, power down protection is carried out as backup power supply；
To prevent overload or wiring error from influencing, bear is stable, damages power supply unit, is provided with self-recovering type fuse and Fuse Type is protected
Dangerous silk, self-recovering type fuse are mainly used for overload protection, and Fuse Type fuse is mainly used for short-circuit protection；Power supply is handed over for 24V
Galvanic electricity.
The analog input includes the input of two-way temperature and pressure inputs all the way, and temperature input is voltage 0-10V, electric current
4-20mA or thermal resistance signal.
The utility model is simple in structure, facilitates debugging, greatly simplifies the debugging cost of field engineer, and is conducive to
Party A operates, and remains to meet requirement by modification pattern after end-equipment upgrading, has a extensive future.
（Four）Description of the drawings
The utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the configuration diagram of the utility model；
Fig. 2 is the inside schematic diagram of the utility model.
In figure, 1 power supply, 2 central controllers, 3 memories, 4 touch screens, 5 communication interfaces, DO relay output points, DI
PID intelligent controls circuit, AO analog outputs, AI analog inputs.
（Five）Specific implementation mode
Attached drawing is a kind of specific embodiment of the utility model.The embodiment includes connecting the central controller 2 of power supply 1,
The central controller 2 is connected to memory 3, and memory 3 connects touch screen 4, and being connected with communication side by side on central controller 2 connects
Mouth 5, relay output point DO, analog output AO, analog input AI and PID intelligent control circuit DI, communication interface 5 connect
Supervisory controller, relay output point DO connection relays, analog output AO connection frequency converters and electric control valve, simulation
Amount input AI connection temperature sensor and pressure sensor, PID intelligent controls circuit DI connection electrically operated valves and water pump.
The utility model is powered using exchange 24V power supplys 1, has full Phototube Coupling, supply voltage monitoring, momentary pulse dry
A variety of interference protection measures such as inhibition, digital filtering, house dog are disturbed, reliability is high, strong environmental adaptability, mean failure rate λ ＞
1*10^5, average thousand hours reliability R (t) ＞ 0.99, average time between failures MTBF ＞ 10^5 hours；To prevent from setting
Destroy system data when standby unexpected power down or the case where loss of data occur, controller using gold capacitance as backup power supply into
Row power down protection；To prevent overload or wiring error from influencing system stability, damage power supply unit, it is configured with self-recovering type guarantor
Dangerous silk and Fuse Type fuse, self-recovering type fuse are mainly used for overload protection, and Fuse Type fuse is mainly used for short-circuit guarantor
Shield.
The utility model has No. five relay output point DO, is used for control loop water pump and small pump；It simulates on three tunnels
Amount output AO, for controlling frequency converter and electric control valve；Three road analog input AI are used for external temperature and pressure sensing
Device detects secondary return water temperature, outdoor temperature and pressure of supply water;Built-in three roads PID intelligent controls circuit DI, according to return water temperature
The aperture that primary side electrically operated valve is controlled with set temperature controls the frequency of small pump according to pressure of return water and setting pressure.
The utility model can select the number of units of water pump, and whether there is or not frequency converters for selection, apply generally to each of various heat exchange stations
Kind equipment application scene；The type of sensor output signal can be selected, controls program built in controller accordingly, and in height
Internal processes parameter can be changed under permission, operator's permission can only change control parameter；Have daytime night control model choosing
Switch or start and stop time switch are selected, the mansions such as enterprises and institutions and centralized office work are very suitable for, it is of low cost and easy to operate, it is right
Property operator requires low.
Claims (6)
1. a kind of heat exchange station new controller, including connection power supply（1）Central controller（2）, it is characterised in that：The center
Controller（2）With memory（3）Connection, memory（3）Connect touch screen（4）, central controller（2）On be connected with communication side by side
Interface（5）, relay output point（DO）, analog output（AO）, analog input（AI）With PID intelligent controls circuit（DI）,
Communication interface（5）Connect supervisory controller, relay output point（DO）Connect relay, analog output（AO）Connect frequency conversion
Device and electric control valve, analog input（AI）Connect temperature sensor and pressure sensor, PID intelligent controls circuit（DI）Even
Connect electrically operated valve and water pump.
2. heat exchange station new controller according to claim 1, it is characterised in that：The memory（3）It is inside provided with and is
System program, user program and data storage.
3. heat exchange station new controller according to claim 1, it is characterised in that：The relay output point（DO）It is five
Road, analog output（AO）, analog input（AI）With PID intelligent controls circuit（DI）It is three tunnels.
4. heat exchange station new controller according to claim 1, it is characterised in that：Be provided on the controller daytime/
Night control model selecting switch or start and stop time switch.
5. heat exchange station new controller according to claim 1, it is characterised in that：It is provided on the controller and power supply
Gold capacitance in parallel, and it is provided with self-recovering type fuse and Fuse Type fuse, power supply is 24V alternating currents.
6. heat exchange station new controller according to claim 3, it is characterised in that：The analog input（AI）Including two
Road temperature input and pressure input all the way, temperature input are voltage 0-10V, electric current 4-20mA or thermal resistance signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721895226.8U CN207689896U (en) | 2017-12-29 | 2017-12-29 | Heat exchange station new controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721895226.8U CN207689896U (en) | 2017-12-29 | 2017-12-29 | Heat exchange station new controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207689896U true CN207689896U (en) | 2018-08-03 |
Family
ID=62992588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721895226.8U Active CN207689896U (en) | 2017-12-29 | 2017-12-29 | Heat exchange station new controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207689896U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739391A (en) * | 2021-08-23 | 2021-12-03 | 珠海格力电器股份有限公司 | Water pump operation control method and system, air-conditioning water pump and air-conditioning unit |
-
2017
- 2017-12-29 CN CN201721895226.8U patent/CN207689896U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739391A (en) * | 2021-08-23 | 2021-12-03 | 珠海格力电器股份有限公司 | Water pump operation control method and system, air-conditioning water pump and air-conditioning unit |
| CN113739391B (en) * | 2021-08-23 | 2022-07-15 | 珠海格力电器股份有限公司 | Water pump operation control method and system, air-conditioning water pump and air-conditioning unit |
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