CN203928130U - The unattended intelligence control system of heat exchange station - Google Patents
The unattended intelligence control system of heat exchange station Download PDFInfo
- Publication number
- CN203928130U CN203928130U CN201320462915.5U CN201320462915U CN203928130U CN 203928130 U CN203928130 U CN 203928130U CN 201320462915 U CN201320462915 U CN 201320462915U CN 203928130 U CN203928130 U CN 203928130U
- Authority
- CN
- China
- Prior art keywords
- water
- temperature
- programmable logic
- logic controller
- controller plc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The utility model relates to unattended intelligent control technology field, the unattended intelligence control system of a kind of heat exchange station is disclosed, the Programmable Logic Controller PLC output of described intelligence control system and two frequency converters are connected to form, and the liquid level sensor in the temperature and pressure transmitter that the input of Programmable Logic Controller PLC is imported and exported with outdoor temperature compensator, plate type heat exchanger primary side high-temperature water, temperature and pressure transmitter, the replenishing water tank of water that plate exchanger secondary side backwater is imported and exported is connected; Corresponding output is connected with the magnetic valve on the electric control valve on plate type heat exchanger primary side high-temperature water, connection water supply pipe, the magnetic valve of pipeline parallel connection; Output by the first frequency converter is connected with circulating pump; Output by the second frequency converter is connected with small pump; The utility model automatically constant temperature and pressure heating, moisturizing, warning and power failure is restarted, and can in real time field data be sent to control terminal, makes user access thousands of miles away real time data.
Description
Technical field
The utility model relates to unattended intelligent control system technical field, is widely used in the unattended intelligence control system of a kind of heat exchange station in heating power industry heat exchange station.
Background technology
The heating heat exchange station of most also adopts the mode of Attended mode, the startup of manual operation controlled circulation pump, small pump etc., also to make regular check on the temperature, pressure of plate type heat exchanger 1 primary side high-temperature water and secondary side heating water temperature, pressure and replenishing water tank of water water level, and run into while power failure, closing of heating heat exchange station system, and when incoming call, also to recover the normal heating of heat exchange station system, it is large that workman operates labour intensity, on duty at heat exchange station for a long time, noise and steam or high-temperature water, can be very big to people's injury.
Summary of the invention
In order to overcome the deficiency in background technology, the purpose of this utility model is to address the above problem, provide a kind of heat exchange station unattended intelligence control system, there is efficient, convenient, practical characteristic, operator on duty can be freed from change station, ensure heat exchange station safety, automatic, stable operation.
In order to realize foregoing invention object, the utility model adopts technical scheme as follows:
The unattended intelligence control system of a kind of heat exchange station, comprising: switch board, in described switch board, be provided with Programmable Logic Controller PLC and frequency converter, and the output of described Programmable Logic Controller PLC is connected with the second frequency converter with the first frequency converter respectively;
The input the first terminal of described Programmable Logic Controller PLC is connected with outdoor temperature compensator, input the second terminal is connected with temperature sensor T, pressure sensor P that plate type heat exchanger primary side high-temperature water is imported and exported, and corresponding output is connected with the electric control valve of plate type heat exchanger primary side high-temperature water import; Input the 3rd terminal is connected with temperature sensor T, pressure sensor P that plate exchanger secondary side backwater is imported and exported; Corresponding output is connected with the circulating pump of plate exchanger secondary side backwater import by the output of the first frequency converter; Input the 4th terminal is connected with the liquid level sensor in replenishing water tank of water; The first corresponding output is connected with the magnetic valve that replenishing water tank of water is communicated with on water supply pipe; The second corresponding output is connected with replenishing water tank of water to the small pump between secondary side backwater by the output of the second frequency converter; The 3rd corresponding output is connected with replenishing water tank of water to the magnetic valve of small pump pipeline parallel connection between secondary side backwater.
The unattended intelligence control system of a kind of heat exchange station, the data terminal of described Programmable Logic Controller PLC is provided with touch-screen, and the touch-screen other end is connected with GPRS equipment.
The unattended intelligence control system of a kind of heat exchange station: the data terminal of described Programmable Logic Controller PLC is provided with touch-screen, and the touch-screen other end is connected with GPRS equipment.
Owing to adopting technical scheme as above, the utlity model has following superiority:
This beneficial effect of the invention is: adopt after this unattended intelligent control system, water circulating pump for backwater pressure reduction converting operation, ensures that stable pressure reduction circulates according to the secondary side of Real-time Collection; According to the secondary side supply water temperature gathering, electric control valve regulates primary side (steam or high-temperature water) automatically, has saved the energy; Meanwhile, by gathering secondary side pressure of return water, judge that by PLC small pump automatically starts or closes, converting operation small pump also can solve a large amount of unnecessary electric energy.In the time that secondary side pressure exceedes warning value, PLC is to the magnetic valve signal in the shunt of secondary side backwater, and magnetic valve starts, and superpressure part releasing pressure automatically is to replenishing water tank of water.In the time that outdoor temperature is higher, RWD68 controller carries out auto-compensation to electric control valve, saves thermal source.In the time that pressure of return water is too low, circulating pump cuts out automatically, and small pump carries out moisturizing, and when hydraulic pressure reaches rated value, circulating pump starts automatically.When after unexpected power failure, system can be closed electric control valve, in order to avoid plate type heat exchanger is damaged, again after incoming call, first small pump starts, to pipe network moisturizing, after pressure stability, system restart, circulating pump is started working, and ensures that heat exchange station can recover heating the fastest time.
It is comprehensive not that the utility model has overcome control system in existing patent and document, has characteristic efficient, convenient practicality, operator on duty can be freed from change station, ensure heat exchange station safety, automatically, stable operation.Control system that can heat exchanging station is carried out more perfect supplementing, and really realizes unattended Based Intelligent Control.
[brief description of the drawings]
Fig. 1 is the system block diagram of heat exchange station unattended intelligent control system;
Fig. 2 is the block diagram of constant temperature heating principle;
Fig. 3 is the block diagram of constant voltage heating principle;
Fig. 4 is the block diagram of variable frequency water supply control principle;
In figure: 1. plate type heat exchanger, 2. electric control valve 3. outdoor temperature compensators, 4. switch board, 5. frequency converter, 6. pressure transmitter, 7. temperature sensor, 8. circulating pump, 9. connecting hose, 10. check-valves, 11. butterfly valves, 12. secondary sides supply water, 13. secondary side backwater, 14. magnetic valves, 15. small pumps, 16. liquid level sensors, 17. replenishing water tank of water, 18. automatical softeners, 19. primary side backwater, 20. primary side thermals source (steam or high-temperature water);
[detailed description of the invention]
As shown in Figure 1,2,3, 4, the unattended intelligence control system of a kind of heat exchange station, comprise: switch board 4, described switch board 4 is connected to form by Programmable Logic Controller PLC output and two frequency converters 5, the first input end of described Programmable Logic Controller PLC is connected with outdoor temperature compensator 3, the second input of Programmable Logic Controller PLC is connected with temperature sensor T, pressure sensor P that plate type heat exchanger 1 primary side high-temperature water is imported and exported, and corresponding output is connected with the electric control valve 2 of plate type heat exchanger 1 primary side high-temperature water import; The 3rd input of Programmable Logic Controller PLC is connected with temperature sensor T, pressure sensor P that plate type heat exchanger 1 secondary side backwater is imported and exported; Corresponding output is connected with the circulating pump 8 of plate type heat exchanger 1 secondary side backwater import by the output of the first frequency converter 5; The four-input terminal of Programmable Logic Controller PLC is connected with the liquid level sensor 16 in replenishing water tank of water 17; The first corresponding output is connected with the magnetic valve that replenishing water tank of water 17 is communicated with on water supply pipe; The second corresponding output is connected with replenishing water tank of water 17 to the small pump 15 between secondary side backwater by the output of the second frequency converter 5; The 3rd corresponding output is connected with replenishing water tank of water 17 to the magnetic valve 14 of small pump 15 pipeline parallel connections between secondary side backwater.
The data terminal of described Programmable Logic Controller PLC is provided with touch-screen, and the touch-screen other end is connected with GPRS equipment.The data terminal of described Programmable Logic Controller PLC is provided with touch-screen, and the touch-screen other end is connected with GPRS equipment.
The unattended intelligent control method of a kind of heat exchange station, touch-screen or the GPRS equipment of the Programmable Logic Controller PLC in employing intelligence control system switch board 4, realize the constant temperature and pressure heating of secondary pipe network, realizes the intelligent work of heat exchange station, and its step is as follows:
1), constant temperature heating: Programmable Logic Controller PLC is by survey secondary side supply water temperature and the outdoor temperature that supply water temperature sensor and outdoor temperature compensator gather according to secondary,
When outdoor temperature is during higher than normal condition, Programmable Logic Controller PLC can regulate the electric control valve on primary side steam or high-temperature water pipeline automatically, the flow that regulates primary side thermal source, reaches secondary side supply water temperature and automatically regulates heat supply according to actual heating load, saves the energy;
2), constant voltage heating: secondary side is equipped with pressure transmitter on water return pipeline, Programmable Logic Controller PLC is the on-the-spot pressure parameter for backwater pressure reduction according to the secondary side of pressure transmitter Real-time Collection, variable frequency adjustment pump operating cycle, reaches the most economical method of operation, saves the energy;
In the time that secondary side pressure of return water is too low, circulating pump cuts out automatically, and small pump automatically starts and carries out moisturizing, enters secondary pipe network system from water tank moisturizing, and when hydraulic pressure reaches rated value, small pump is closed automatically, and circulating pump starts automatically;
In the time that secondary side pressure of return water is too high, releasing pressure automatically function on, Programmable Logic Controller PLC is to the magnetic valve signal in the shunt of secondary side backwater, and magnetic valve activates to open, and the pressure release of superpressure backwater is to replenishing water tank of water;
3), automatic water supplement: Programmable Logic Controller PLC, according to gathering secondary side pressure of return water, judges that small pump automatically starts or closes, and the operation of variable frequency adjustment small pump, saves the energy;
When replenishing water tank of water water level is during lower than warning value, magnetic valve is opened, and running water enters replenishing water tank of water after automatical softener is softening, in the time that liquid level sensor detects that cistern water level reaches predetermined value, and closed electromagnetic valve, demineralized water stops moisturizing;
4), decompression is protected automatically: when secondary side pressure of return water is during lower than 0.05MPa, Programmable Logic Controller PLC starts pressure testing defencive function, electric control valve cuts out automatically, circulating pump cuts out automatically, small pump starts and carries out moisturizing, and in the time that pressure reaches 0.2MPa, circulating pump starts again, electric control valve is opened, and system continues normal work;
5), incoming call is from opening: when after unexpected power failure, system can be closed electric control valve, in order to avoid plate type heat exchanger 1 is damaged, when after incoming call, small pump starts first voluntarily, and pipe network is carried out to moisturizing, after pressure stability is normal, system starts successively circulating pump, opens electric control valve, and system is resumed work; Ensure that heat exchange station recovers heating;
6), data remote function: be provided with data remote transmitting module GPRS in Programmable Logic Controller PLC, real-time field data can be sent to control terminal, user can access real time data thousands of miles away;
7), human-computer interface module: the touch-screen that adopts man-machine interface, show for pressure of return water, supply and return water temperature, primary side thermal source pressure and temperature, cistern water level, the duty of water pump, duty and the constant parameter of magnetic valve, and on touch-screen, there is the membrane keyboard of operation variable parameter and the inquiry constant parameter of change control water pump and magnetic valve equipment, for changing equipment operating condition; The historical record of inquiry constant parameter is also supported copy function.
As shown in Figure 1, this control system is mainly made up of parts such as plate type heat exchanger 1, electric control valve 2, outdoor temperature compensator 3, switch board 4, frequency converter 5, pressure transmitter 6, temperature sensor 7, circulating pump 8, connecting hose 9, check-valves 10, butterfly valve 11, secondary side water supply 12, secondary side backwater 13, magnetic valve 14, small pump 15, liquid level sensor 16, replenishing water tank of water 17, automatical softener 18, primary side backwater 19, primary sides (steam or high-temperature water) 20.
Primary side thermal source (steam or high-temperature water) 20 through electric control valves 2 laggard enter the hot side entrance of plate type heat exchanger 1, secondary side backwater 13 through circulating pumps 8 pressurize laggard enter plate type heat exchanger 1 cold side entrance.Two media carries out High Efficiency Thermal exchange in plate type heat exchanger 1 with convection type, heated secondary side water supply 12 is flowed out and entered heating network from plate type heat exchanger 1 cold side outlet.Running water enters replenishing water tank of water 17 after automatic water softener 18 is softening, and in the time that liquid level sensor 16 detects that cistern water level reaches predetermined value, closed electromagnetic valve, stops softening running water.In the time that secondary side backwater 13 pressure exceed warning value, magnetic valve 14 is opened, and system is carried out releasing pressure automatically, and superfluous water is let out to replenishing water tank of water 17, ensures that secondary side ductwork pressure is stable.
Claims (3)
1. the unattended intelligence control system of heat exchange station, comprise: switch board (4), it is characterized in that: in described switch board (4), be provided with Programmable Logic Controller PLC and frequency converter (5), the output of described Programmable Logic Controller PLC is connected with the second frequency converter (5) with the first frequency converter (5) respectively;
The input the first terminal of described Programmable Logic Controller PLC is connected with outdoor temperature compensator (3), input the second terminal is connected with temperature sensor T, pressure sensor P that plate type heat exchanger (1) primary side high-temperature water is imported and exported, and corresponding output is connected with the electric control valve (2) of plate type heat exchanger (1) primary side high-temperature water import; Input the 3rd terminal is connected with temperature sensor T, pressure sensor P that plate type heat exchanger (1) secondary side backwater is imported and exported; Corresponding output is connected with the circulating pump (8) of plate type heat exchanger (1) secondary side backwater import by the output of the first frequency converter (5); Input the 4th terminal is connected with the liquid level sensor (16) in replenishing water tank of water (17); The first corresponding output is connected with the magnetic valve that replenishing water tank of water (17) is communicated with on water supply pipe; The second corresponding output is connected with replenishing water tank of water (17) to the small pump (15) between secondary side backwater by the output of the second frequency converter (5); The 3rd corresponding output is connected with replenishing water tank of water (17) to the magnetic valve (14) of small pump (15) pipeline parallel connection between secondary side backwater.
2. the unattended intelligence control system of a kind of heat exchange station according to claim 1, is characterized in that: the data terminal of described Programmable Logic Controller PLC is provided with touch-screen, and the touch-screen other end is connected with GPRS equipment.
3. the unattended intelligence control system of a kind of heat exchange station according to claim 1: it is characterized in that: the data terminal of described Programmable Logic Controller PLC is provided with touch-screen, the touch-screen other end is connected with GPRS equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320462915.5U CN203928130U (en) | 2013-07-31 | 2013-07-31 | The unattended intelligence control system of heat exchange station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320462915.5U CN203928130U (en) | 2013-07-31 | 2013-07-31 | The unattended intelligence control system of heat exchange station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203928130U true CN203928130U (en) | 2014-11-05 |
Family
ID=51823934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320462915.5U Expired - Lifetime CN203928130U (en) | 2013-07-31 | 2013-07-31 | The unattended intelligence control system of heat exchange station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203928130U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438503A (en) * | 2013-07-31 | 2013-12-11 | 洛阳双瑞精铸钛业有限公司 | Unattended intelligent control method and control system for heat exchange station |
| CN104776489A (en) * | 2015-04-23 | 2015-07-15 | 陕西海点智能科技有限公司 | Intelligent controller of heat exchange station |
| CN106152250A (en) * | 2016-08-16 | 2016-11-23 | 河南柴油机重工有限责任公司 | Blood circulation that a kind of heat exchange station automatically controls and circulation controlling means |
| CN111981548A (en) * | 2020-05-22 | 2020-11-24 | 太原大四方节能环保股份有限公司 | Heating ventilation air conditioning pipe network circulating pump water system and power-saving operation method thereof |
| CN113834122A (en) * | 2021-10-21 | 2021-12-24 | 山东齐芯智控科技有限公司 | Climate compensation measurement and control instrument and compensation method for heat exchange station |
-
2013
- 2013-07-31 CN CN201320462915.5U patent/CN203928130U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438503A (en) * | 2013-07-31 | 2013-12-11 | 洛阳双瑞精铸钛业有限公司 | Unattended intelligent control method and control system for heat exchange station |
| CN104776489A (en) * | 2015-04-23 | 2015-07-15 | 陕西海点智能科技有限公司 | Intelligent controller of heat exchange station |
| CN104776489B (en) * | 2015-04-23 | 2018-08-21 | 陕西海点智能科技有限公司 | A kind of heat exchange station intelligent controller |
| CN106152250A (en) * | 2016-08-16 | 2016-11-23 | 河南柴油机重工有限责任公司 | Blood circulation that a kind of heat exchange station automatically controls and circulation controlling means |
| CN111981548A (en) * | 2020-05-22 | 2020-11-24 | 太原大四方节能环保股份有限公司 | Heating ventilation air conditioning pipe network circulating pump water system and power-saving operation method thereof |
| CN111981548B (en) * | 2020-05-22 | 2021-12-14 | 太原大四方节能环保股份有限公司 | Heating ventilation air conditioning pipe network circulating pump water system and power-saving operation method thereof |
| CN113834122A (en) * | 2021-10-21 | 2021-12-24 | 山东齐芯智控科技有限公司 | Climate compensation measurement and control instrument and compensation method for heat exchange station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103438503A (en) | Unattended intelligent control method and control system for heat exchange station | |
| CN203928130U (en) | The unattended intelligence control system of heat exchange station | |
| CN204646384U (en) | Diesel engine coolant and flue gas heat energy utilization device | |
| CN104848295A (en) | Self-adaption intelligent heat exchange station | |
| CN202485208U (en) | Energy-saving double-water-tank constant-temperature continuous water supply system | |
| CN204693557U (en) | A kind of absorption heat exchange unit using automatic water-mixing system | |
| CN202008184U (en) | Instant electric heating type solar heat supply system | |
| CN202485278U (en) | Hot spring bathing pool heat energy recycling system | |
| CN201531940U (en) | Integrated intelligent water mixing set | |
| CN202253964U (en) | Intelligent heat exchanger set | |
| CN208794533U (en) | A kind of auxiliary electrical power heat-supply system of luminous energy | |
| CN201448918U (en) | High-intelligent plate heat exchanger unit | |
| CN203298394U (en) | Intelligent hot water supply system | |
| CN202008190U (en) | Heating system complementarily using solar energy, air source and electric energy | |
| CN205065901U (en) | Centralized heat supply control system | |
| CN201662162U (en) | Dynamic balancing machine set applied to hot water central heating system | |
| CN205481240U (en) | Novel series connection heat supply network drainage system | |
| CN201412120Y (en) | Solar power warming system for oil field wellhead | |
| CN209229837U (en) | A kind of low temperature double stage heat pump unit | |
| CN211903903U (en) | Automatic control and regulation system for spray water of cooling tower | |
| CN210568773U (en) | Energy-saving secondary station heat pump set based on internet | |
| CN203980438U (en) | Transmission & distribution flow balance controller | |
| CN109631142B (en) | Energy-saving and efficient gas central hot water optimization system | |
| CN203825456U (en) | Control equipment of power plant combined circulating system | |
| CN112984592A (en) | Heat centralized supply matched construction engineering system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |
|
| CX01 | Expiry of patent term |