CN101261513A - Heat exchanging units long-range control system - Google Patents
Heat exchanging units long-range control system Download PDFInfo
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- CN101261513A CN101261513A CNA2007100568838A CN200710056883A CN101261513A CN 101261513 A CN101261513 A CN 101261513A CN A2007100568838 A CNA2007100568838 A CN A2007100568838A CN 200710056883 A CN200710056883 A CN 200710056883A CN 101261513 A CN101261513 A CN 101261513A
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- heat
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- heat exchange
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention relates to a heat-exchanger unit remote control system in the heat exchange control field, the technology is mainly characterized in that: the system is composed of a main control machine which is positioned at a control center, a modulation demodulator which is connected with a communication interface thereof, control boxes of heat-exchanger units which are distributed in each heat supply station and modulation demodulators which are connected with the communication interfaces thereof by connection via a public telephone virtual network, and the heat exchanger unit control boxes are connected with a temperature sensor in a heat supply pipeline, a pressure sensor, a regulating valve, a circulating pump, a water supplementing pump and an outdoor temperature sensor. The heat-exchanger unit remote control system can carry out the real-time monitoring and the control of the operation situations of all the heat-exchanger units, once the devices of the heat supply stations are detected to have the faults, the processing can be carried out immediately, thus ensuring the normal operation of a heat supply system, automatically adjusting the opening degree of the regulating valve of a primary network, avoiding the waste of the resources due to the excessive heat supply or the inconvenience of a user due to the insufficient heat supply and stably supplying the heat to the user of a secondary network.
Description
Technical field
The present invention relates to heat interchange control field, relate in particular to a kind of heat exchanging units long-range control system.
Background technology
Heat exchange unit in the heating plant key link that to be the heat energy energy once netted transmit to the user of secondary net, it should be according to actual needs, as adjusting the unlatching and the aperture of variable valve for the temperature of backwater and pressure, secondary net for the temperature of backwater and pressure, outdoor situations such as temperature according to net once, the water yield to once net water supply is controlled, so that the return water temperature of secondary net heat supply standard up to specification.At present, between an area or each heating plant of incity, city without any contact, each heating plant is all only controlled the heat exchange unit in the our station, and, heating plant all is to adopt manual type to adjust once the unlatching of net valve and to the monitoring of equipment operation state, have that the monitoring workload is big, temperature is wayward and cause problem such as secondary net return water temperature instability, if user's temperature is too high in the secondary net, can cause the waste of heating power resource so, bring inconvenience for again user's daily life if temperature is crossed to hang down.How monitoring automatically and to control for the heat exchange unit in a plurality of heating plants in an area or the city, guarantee the normal operation of heat exchange unit, is the problem that presses for solution at present for the secondary net provides reliable and stable heating power resource.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, provide and can be automatically carry out remote monitoring, guarantee the normal operation of heat exchange unit, provide for the user simultaneously a kind of heat exchanging units long-range control system of reliable and stable heating power resource the heat exchange unit that is distributed in the different location.
The present invention solves its technical matters and takes following technical scheme to realize:
This heat exchanging units long-range control system is characterized in that: this system is by the main control computer that is positioned at control center and communicate with modulator-demodular unit, the heat exchange unit control box that is distributed in each heating plant that interface is connected and communicate with the interface modulator-demodular unit that is connected and connect and compose by the public telephone virtual net.
And described heat exchange unit control box is connected with temperature sensor, pressure transducer, variable valve, ebullator, small pump and outdoor temperature sensor in the heat supplying pipeline.
And, described temperature sensor is installed in once on the supply channel and water return pipeline of net respectively, on the supply channel of secondary net, described pressure transducer is installed on the water return pipeline of secondary net, described flowmeter is installed in respectively once on the water pipe of the water return pipeline of net and secondary net, described variable valve is installed in the once supply channel water of net, described ebullator is installed on the water return pipeline of secondary net, and described small pump is installed on the water pipe of secondary net.
And described main control computer also connects a printer.
And described communication interface is the RS485 interface.
And the described number that is distributed in the heat exchange unit control box of each heating plant is 1～12.
Advantage of the present invention and good effect are:
(1) the present invention organically couples together the formation tele-control system by the public telephone virtual net with the main control computer of control center and each heating plant, can monitor and control the work working order of each heat exchange unit in real time, in case detecting the equipment of heating plant breaks down, can handle immediately, guarantee the normal operation of heating system.
(2) the present invention's parameter of sensor temperature, pressure parameter and the outdoor temperature sensor on the acquiring heat supply pipeline in real time, automatically adjust the once aperture of net variable valve, avoid to be secondary network users stable heating because of heat supply excessively causes the waste of resource or the inconvenience that heat supply causes to the user inadequately.
(3) the present invention can also set the operational factor of heat exchange unit flexibly on heat exchange unit control box, and the heat exchange station that can adapt to different condition, different scales uses.
(4) public telephone virtual net used in the present invention is a kind of packet switching system, that be specially adapted to be interrupted, paroxysmal or frequent low volume data transmission, it has the advantage of " online constantly ", " chargeing according to quantity ", " fast landing ", " high-speed transfer ", and its operation cost is low, data transmission is accurate.
Description of drawings
Fig. 1 is that system of the present invention forms theory diagram;
Fig. 2 is that heat exchange unit control box is connected block diagram with the heat exchange unit.
Embodiment
As shown in Figure 1, this heat exchanging units long-range control system is by the main control computer that is positioned at control center and communicate with the modulator-demodular unit that interface is connected, be distributed in the heat exchange unit control box of each heating plant and communicate with the interface modulator-demodular unit that is connected and connect and compose by the public telephone virtual net, this main control computer by this machine with the RS485 communication interface be connected on the modulator-demodular unit, again modulator-demodular unit is inserted on the public telephone virtual net by telephone wire, the heat exchange unit control box of each heating plant has a RS485 communication interface, be connected with modulator-demodular unit by this interface, again modulator-demodular unit inserted on the public telephone virtual net by telephone wire.The main control computer of Surveillance center and heat exchange unit control box are linked on the public telephone virtual net by the RS485 communication interface, constitute main many distributed remote control system from structure, the main control computer of Surveillance center is directly monitored the state of heat exchange unit by application software, finishes the monitoring to the heating system of each heating plant jointly.The number of the heat exchange unit control box of each heating plant is 1～12, and promptly the number of the heat exchange unit control box that can monitor of tele-control system is 1～12.The employed modulator-demodular unit of present embodiment is the EF-1027/1028 modulator-demodular unit of Nanjing Dongyuan Science ﹠ Technology Co., Ltd..
The public telephone virtual net that the present invention uses is a kind of packet switching system, that be specially adapted to be interrupted, paroxysmal or frequent low volume data transmission, it has the advantage of " online constantly ", " chargeing according to quantity ", " fast landing ", " high-speed transfer ".Communication mode between main control computer and the heat exchange unit control box: main control computer is monitored communication port, heat exchange unit control box sends connection request to main control computer, main control computer receives request back both sides and promptly connects, after connecting, heat exchange unit control box regularly sends data to main control computer, main control computer receives data and analyzes, and analysis result is shown or does further processing, and main control computer also can initiatively send to heat exchange unit control box and gather and control command.
Heat exchange unit control box is mounted in the heat exchange station, the heat exchange unit control box that present embodiment adopted is the EF-1532 control box of Nanjing Dongyuan Science ﹠ Technology Co., Ltd., this control box front panel is provided with display screen, button and pilot lamp, the distributing frame that inside has control circuit, telecommunication circuit and is connected with control circuit, the temperature sensor in the heat supplying pipeline, pressure transducer, variable valve, ebullator, small pump and outdoor temperature sensor are connected on the interior distributing frame of heat exchange unit control box.
As shown in Figure 2, temperature sensor, pressure transducer, variable valve, ebullator, small pump that the control of heat exchange unit is connected are connected on the heat supplying pipeline, be used for the parameters such as every temperature, pressure and outdoor temperature on the acquiring heat supply pipeline, or variable valve, ebullator, moisturizing pumping lamp are controlled.The connection situation of the said equipment in heat supplying pipeline is as follows: temperature sensor is installed in respectively on the supply channel of once netting, the water return pipeline of once netting and reaches on the supply channel of secondary net, pressure transducer is installed on the water return pipeline of secondary net, flowmeter is installed in respectively once on the water pipe of the water return pipeline of net and secondary net, variable valve is installed in the once supply channel of net, ebullator is installed on the water return pipeline of secondary net, small pump is installed in secondary net water return pipeline, and outdoor temperature sensor is fixed on outdoor and directly is linked in the heat exchange unit control box.
Temperature controlled processes: heat exchange unit control box is by realizing collection to the heating network data to being installed in temperature sensor on the heat supplying pipeline, pressure transducer and outdoor sensor, heat exchange unit control box with the data upload that collects to the main control computer of Surveillance center, main control computer is by handling data analysis, sending order to heat exchange unit control box again controls the variable valve on the supply channel, adjust the water yield of variable valve water inlet, reach secondary net temperature controlling.To secondary net temperature controlling, the supply water temperature that also can use button on the heat exchange unit control box directly to set the secondary net is controlled the once variable valve of net, can also directly manually set the operational mode of heating on duty.
The pressure control process: be connected pressure transducer in the heat supplying pipeline can transmit on the supply channel for information such as pressure of return water, flowmeter, replenishing water tank of water liquid levels, heat exchange unit control box is to realize pressure control to heat supplying pipeline by the control to secondary net water circulating pump, small pump.Its control function is: according to the running frequency that the pressure of supply water or the confession backwater pressure reduction of secondary net are controlled secondary net water circulating pump, the position of pressure point can be on the confession return pipe of unit; Control the running frequency of secondary net small pump according to moisturizing pressure, the rich degree of moisturizing pressure is 20-50Kpa.
The principle of work of main control computer is as follows:
Main control computer is equipped with the application software of functions such as having monitoring, communication, data processing in advance, application software adopts modular design, comprises following functional module: secondary monitoring temperature module, secondary pressure monitoring module, water level/traffic monitoring module, outdoor temperature detection module, device status monitoring module, Communications Processor Module, data processing module, figure/curve generation module, report generation module.
Secondary monitoring temperature module, the secondary pressure monitoring module, water level/traffic monitoring module, outdoor temperature detection module and device status monitoring module realize by communicating between Communications Processor Module and the heat exchange generator set controller.
Communications Processor Module: be used for management data communication, transmitting and receiving data and finish verification, accomplish accurate transmission, and the operating position of judgement communication line, automatically discern certain communication failure, provide prompting, its scope is: communicating by letter between main control computer and the heat exchange unit control box and between heat exchange unit unit control box and the sensor.
Data processing module, figure, the curve generation module, the report generation module is finished the various data that collect is handled, screening, gather, analyze and finish various historical datas, the storage of datagram alarming information and query function, finish various charts, the drafting of curve, finish the generation and the printing function of various forms: (1) equipment state shows: main control computer and heat exchange generator set controller adopt RS485 communication protocol to realize data transport functions through the public telephone virtual net, the state of remote collection and monitoring heat exchange unit, the man-machine monitoring interface of graphic presentation on main control computer can show the running status of whole systems simultaneously; (2) temperature, pressure monitor show and analyze: by temperature sensor, the real-time collecting temperature of pressure transducer, pressure data and alert data, constantly monitor abnormal data, temperature, pressure are monitored, also can carry out trend analysis; (3) data acquisition, processing, storage: the data of implementing to receive temperature sensor, pressure transducer collection, the self-verifying data layout also carries out rationality and judges, send as requested dummy instruction or classification storage or demonstration in real time automatically, information such as storage unit operation working condition and warning in data database; (4) show output: show various actual measurements, history, artificial input data and conditional curve, as contents such as equipment working state, communication channel duty such as single station data, multistation data, set state, generator set controllers; (5) output of reporting to the police: when data transfinite, report to the police automatically during the monitored object fault, when failure systems such as generator set controller sound reproduction apparatus failure, communication failure, sensor are reported to the police automatically, and, make system have the emergency review function according to warning message analyzing stored warning classification; (6) database maintenance: management maintenance real-time data base and historical data base, the backup of supporting database, functions such as the increase of data recording, inquiry, modification, deletion and computer virus strick precaution have the function such as self diagnosis, operative intelligence, help explanation of system simultaneously; (7) data retrieval and statistics: search various and decide historical data, statistics all temps, pressure, flow, inquiry combined data, but according to the heat supply peak in historical data, history curve, each year of trend map statistics and analysis and each month in every year with underestimate, and the operating condition of system, for the security of system maintenance provides foundation; (8) system parameter setting: system's basic parameter is set, functional parameters such as data acquisition process, communication and control.
Claims (6)
1. heat exchanging units long-range control system is characterized in that: this system is by the main control computer that is positioned at control center and communicate with modulator-demodular unit, the heat exchange unit control box that is distributed in each heating plant that interface is connected and communicate with the interface modulator-demodular unit that is connected and connect and compose by the public telephone virtual net.
2. heat exchanging units long-range control system according to claim 1 is characterized in that: described heat exchange unit control box is connected with temperature sensor, pressure transducer, variable valve, ebullator, small pump and outdoor temperature sensor in the heat supplying pipeline.
3. a kind of heat exchanging units long-range control system according to claim 2, it is characterized in that: described temperature sensor is installed in respectively once on the supply channel and water return pipeline of net, on the supply channel of secondary net, described pressure transducer is installed on the water return pipeline of secondary net, described flowmeter is installed in respectively once on the water pipe of the water return pipeline of net and secondary net, described variable valve is installed in the once supply channel water of net, described ebullator is installed on the water return pipeline of secondary net, and described small pump is installed on the water pipe of secondary net.
4. a kind of heat exchanging units long-range control system according to claim 1 is characterized in that: described main control computer also connects a printer.
5. a kind of heat exchanging units long-range control system according to claim 1 is characterized in that: described communication interface is the RS485 interface.
6. a kind of heat exchanging units long-range control system according to claim 1 is characterized in that: the described number that is distributed in the heat exchange unit control box of each heating plant is 1～12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100568838A CN101261513A (en) | 2007-03-07 | 2007-03-07 | Heat exchanging units long-range control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100568838A CN101261513A (en) | 2007-03-07 | 2007-03-07 | Heat exchanging units long-range control system |
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| CN101261513A true CN101261513A (en) | 2008-09-10 |
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| CNA2007100568838A Pending CN101261513A (en) | 2007-03-07 | 2007-03-07 | Heat exchanging units long-range control system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252366A (en) * | 2011-07-05 | 2011-11-23 | 长春工业大学 | Control system and control method for hydraulic and thermotechnical balance-based heat exchange station |
| CN102662387A (en) * | 2012-06-01 | 2012-09-12 | 张克 | Heat supply monitoring system and method |
| CN105115352A (en) * | 2015-09-29 | 2015-12-02 | 江苏永盛传热科技有限公司 | Tube-shell type heat exchange unit |
| CN105403089A (en) * | 2015-11-30 | 2016-03-16 | 成都德善能科技有限公司 | Intelligent heat exchanger system |
| CN107152710A (en) * | 2016-12-02 | 2017-09-12 | 天津市津安热电有限公司 | A kind of heating network with intelligent online monitoring system |
| CN107154081A (en) * | 2016-12-02 | 2017-09-12 | 天津市津安热电有限公司 | A kind of heating network with intelligent inspection system |
| CN107942831A (en) * | 2017-12-25 | 2018-04-20 | 山东联星能源集团有限公司 | Five in one new energy sells demonstration centre control system |
-
2007
- 2007-03-07 CN CNA2007100568838A patent/CN101261513A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252366A (en) * | 2011-07-05 | 2011-11-23 | 长春工业大学 | Control system and control method for hydraulic and thermotechnical balance-based heat exchange station |
| CN102662387A (en) * | 2012-06-01 | 2012-09-12 | 张克 | Heat supply monitoring system and method |
| CN105115352A (en) * | 2015-09-29 | 2015-12-02 | 江苏永盛传热科技有限公司 | Tube-shell type heat exchange unit |
| CN105403089A (en) * | 2015-11-30 | 2016-03-16 | 成都德善能科技有限公司 | Intelligent heat exchanger system |
| CN105403089B (en) * | 2015-11-30 | 2018-06-12 | 成都德善能科技有限公司 | A kind of intelligent heat exchanger system |
| CN107152710A (en) * | 2016-12-02 | 2017-09-12 | 天津市津安热电有限公司 | A kind of heating network with intelligent online monitoring system |
| CN107154081A (en) * | 2016-12-02 | 2017-09-12 | 天津市津安热电有限公司 | A kind of heating network with intelligent inspection system |
| CN107942831A (en) * | 2017-12-25 | 2018-04-20 | 山东联星能源集团有限公司 | Five in one new energy sells demonstration centre control system |
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Open date: 20080910 |