CN204438896U - A kind of enclosed cooling recirculation system energy-saving control device - Google Patents
A kind of enclosed cooling recirculation system energy-saving control device Download PDFInfo
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- CN204438896U CN204438896U CN201420835303.0U CN201420835303U CN204438896U CN 204438896 U CN204438896 U CN 204438896U CN 201420835303 U CN201420835303 U CN 201420835303U CN 204438896 U CN204438896 U CN 204438896U
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- frequency converter
- recirculation system
- sensor
- pressure sensor
- cooling water
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Abstract
The utility model discloses a kind of enclosed cooling recirculation system energy-saving control device, the frequency converter comprising controller and be connected with controller, feed pipe temperature sensor, return pipe temperature sensor, outdoor air Temperature Humidity Sensor, feed pipe pressure sensor, return pipe pressure sensor, pump capacity meter.This energy-saving control device achieves the dynamic information collection of enclosed cooling recirculation system operational factor, can stability contorting cooling water temperature, and tail end heat exchange heat dissipation capacity is stablized, and effectively reduces enclosed cooling recirculation system energy consumption.
Description
Technical field
The utility model belongs to steam power plant's cooling technology field, particularly a kind of energy-saving control device be arranged in enclosed cooling recirculation system.
Background technology
Cooling water recirculation system is a common and very important production corollary system, comprises by the interconnective closed cooling tower of pipeline, cooling water pump and end heat exchanger, and it has the features such as system complex, user be many.In some water-deficient area, the cooling of its steam turbine, bearing shell cool, water-cooled generator cooling all adopts enclosed cooling water recirculation system usually, realize the dual purpose of equipment cooling and saving water resource.
At present, the operation of enclosed cooling water recirculation system controls still to have come essentially by manual hand manipulation.Manual hand manipulation's cooling recirculation system has shown many technological deficiencies, such as, when running cooling water recirculation system, can not carry out dynamic conditioning, but run according to the most unfavorable processing condition demand according to the production load of unit.This certainly will cause the cooling water pump of cooling recirculation system and blower fan of cooling tower energy consumption too high, cooling water supply temperature controls unstable, and tail end heat exchange heat dissipation capacity is unstable, brings unnecessary energy consumption waste, and then affect unit and dispel the heat and stable operation.
Utility model content
The purpose of this utility model is to provide a kind of enclosed cooling recirculation system energy-saving control device, high to solve enclosed cooling recirculation system energy consumption, and cooling water temperature controls unstable, the technical problem of tail end heat exchange heat dissipation capacity instability.
To achieve these goals, the utility model takes following technical scheme:
A kind of enclosed cooling recirculation system energy-saving control device, the frequency converter comprising controller and be connected with controller, feed pipe temperature sensor, return pipe temperature sensor, outdoor air Temperature Humidity Sensor, feed pipe pressure sensor, return pipe pressure sensor, pump capacity meter.
Described frequency converter is divided into cooling water pump frequency converter and closed cooling tower fan frequency converter, and cooling water pump frequency converter and pump capacity are scored and be not connected with cooling water pump, and closed cooling tower fan frequency converter is connected with closed cooling tower blower fan.
Described feed pipe temperature sensor, feed pipe pressure sensor are arranged on the pipeline between cooling water pump and end heat exchanger, and return pipe temperature sensor, return pipe pressure sensor are arranged on the pipeline between end heat exchanger and closed cooling tower.
Described outdoor air Temperature Humidity Sensor is installed on the position that sunlight direct irradiation is avoided in outdoor.
Preferred as technical scheme, described feed pipe temperature sensor, return pipe temperature sensor, feed pipe pressure sensor, return pipe pressure sensor, outdoor air Temperature Humidity Sensor, pump capacity meter and the signal type of frequency converter are RS-485 and communicate data signal, and communications protocol is modbus agreement.
Compared with existing enclosed cooling recirculation system, the beneficial effects of the utility model are mainly reflected in:
The utility model, on the basis of original enclosed cooling recirculation system, has been installed multiple sensors and frequency converter, has been achieved the real-time Dynamic controlling to operational factors such as cooling water flow, supply water temperature and radiating efficiencys.Relative to traditional manual hand manipulation, energy-saving control device described in the utility model can be saved the power consumption of cooling water pump and blower fan of cooling tower, reduce the resistance loss of pipeline of cooling water system, reduce the energy consumption consumption of cooling water pump, accurately cooling water supply temperature to control, improve unit operation reliability and stability, comprehensive year power saving rate can reach 30% ~ 40%.
Accompanying drawing explanation
Fig. 1 is that enclosed cooling recirculation system energy-saving control device installs relation schematic diagram.
Description of reference numerals: 1, controller; 2, cooling water pump frequency converter; 3, closed cooling tower fan frequency converter; 4, feed pipe temperature sensor; 5, return pipe temperature sensor; 6, outdoor air Temperature Humidity Sensor; 7, feed pipe pressure sensor; 8, return pipe pressure sensor; 9, pump capacity meter; 10, closed cooling tower; 11, cooling water pump; 12, end heat exchanger.
Detailed description of the invention
For the ease of understanding the purpose of this utility model, technical scheme and effect thereof, now will be elaborated further the utility model in conjunction with the embodiments.
Enclosed cooling recirculation system mainly comprises closed cooling tower 10, cooling water pump 11 and end heat exchanger 12.Its operation principle can simply be described as: the cooling water inputted via end heat exchanger 12 carries out cooling heat transferring by closed cooling tower 10, cooling water temperature is reduced, then be transported to end heat exchanger 12 via cooling water pump 11 and carry out heat exchange, get back to closed cooling tower 10 after taking away the heat that end unit distributes to cool, then enter next circulation.
Existing enclosed cooling recirculation system mostly is manual hand manipulation, there is enclosed cooling recirculation system energy consumption high, and cooling water temperature controls unstable, the technical problem of tail end heat exchange heat dissipation capacity instability.The present embodiment, on the basis of original enclosed cooling recirculation system, provides a kind of enclosed cooling recirculation system energy-saving control device, as shown in Figure 1.
Cooling water pump frequency converter 2, closed cooling tower fan frequency converter 3, feed pipe temperature sensor 4, return pipe temperature sensor 5, outdoor air Temperature Humidity Sensor 6, feed pipe pressure sensor 7, return pipe pressure sensor 8, pump capacity meter 9 that described energy-saving control device comprises controller 1 and is connected with controller 1.
Wherein, every platform cooling water pump 11 respectively connects a cooling water pump frequency converter 2 and pump capacity meter 9, and closed cooling tower fan frequency converter 3 is connected with closed cooling tower blower fan.Feed pipe temperature sensor 4, feed pipe pressure sensor 7 are arranged on the pipeline between cooling water pump 11 and end heat exchanger 12, and return pipe temperature sensor 5, return pipe pressure sensor 7 are arranged on the pipeline between end heat exchanger 12 and closed cooling tower 10.Outdoor air Temperature Humidity Sensor 6 is installed on the position that sunlight direct irradiation is avoided in outdoor.
As preferred embodiment, described feed pipe temperature sensor 4, return pipe temperature sensor 5, feed pipe pressure sensor 7, return pipe pressure sensor 8, outdoor air Temperature Humidity Sensor 6, the signal type of pump capacity meter 9, cooling water pump frequency converter 2, closed cooling tower fan frequency converter 3 is RS-485 communication data signal, and communications protocol is modbus agreement.
Controller 1 gathers the signal of cooling water supply pipe temperature sensor 4, return pipe temperature sensor 5, feed pipe pressure sensor 7, pump capacity meter 9, the program of the built-in Energy Saving Control strategy of controller 1 carries out analytical calculation to above-mentioned parameter, regulable control is carried out to cooling water pump frequency converter 2 frequency, and automatically regulate chilled water pump 11 to run number of units, save water pump operation energy consumption.
Controller 1 gathers the signal of cooling water supply pipe temperature sensor 4, outdoor air Temperature Humidity Sensor 6, the program of the built-in Energy Saving Control strategy of controller 1 carries out analytical calculation to above-mentioned parameter, calculate outdoor wet-bulb temperature, dynamic adjustments cooling water supply temperature setting value, controller 1 carries out regulable control according to new cooling water supply temperature setting value to closed cooling tower fan frequency converter 3, saves fan operation energy consumption.
The utility model is done above in conjunction with the embodiments and further described, but the utility model is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, can also make a variety of changes under the prerequisite not departing from the utility model aim.
Claims (2)
1. an enclosed cooling recirculation system energy-saving control device, it is characterized in that, the frequency converter comprising controller and be connected with controller, feed pipe temperature sensor, return pipe temperature sensor, outdoor air Temperature Humidity Sensor, feed pipe pressure sensor, return pipe pressure sensor, pump capacity meter;
Described frequency converter is divided into cooling water pump frequency converter and closed cooling tower fan frequency converter, and cooling water pump frequency converter and pump capacity are scored and be not connected with cooling water pump, and closed cooling tower fan frequency converter is connected with closed cooling tower blower fan;
Described feed pipe temperature sensor, feed pipe pressure sensor are arranged on the pipeline between cooling water pump and end heat exchanger, and return pipe temperature sensor, return pipe pressure sensor are arranged on the pipeline between end heat exchanger and closed cooling tower;
Described outdoor air Temperature Humidity Sensor is installed on the position that sunlight direct irradiation is avoided in outdoor.
2. enclosed cooling recirculation system energy-saving control device according to claim 1, it is characterized in that, described feed pipe temperature sensor, return pipe temperature sensor, feed pipe pressure sensor, return pipe pressure sensor, outdoor air Temperature Humidity Sensor, pump capacity meter and the signal type of frequency converter are RS-485 and communicate data signal, and communications protocol is modbus agreement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420835303.0U CN204438896U (en) | 2014-12-24 | 2014-12-24 | A kind of enclosed cooling recirculation system energy-saving control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420835303.0U CN204438896U (en) | 2014-12-24 | 2014-12-24 | A kind of enclosed cooling recirculation system energy-saving control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204438896U true CN204438896U (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420835303.0U Expired - Fee Related CN204438896U (en) | 2014-12-24 | 2014-12-24 | A kind of enclosed cooling recirculation system energy-saving control device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204438896U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534917A (en) * | 2014-12-24 | 2015-04-22 | 深圳孚沃德斯科技有限公司 | Energy-saving control device and method for closed cooling circulation system |
| CN107065543A (en) * | 2017-03-29 | 2017-08-18 | 山东华星石油化工集团有限公司 | A kind of optimal Water temperature control method of recirculating cooling water system |
| CN111750596A (en) * | 2020-07-09 | 2020-10-09 | 山东齐鲁增塑剂股份有限公司 | Circulating water energy-saving system and operation method thereof |
-
2014
- 2014-12-24 CN CN201420835303.0U patent/CN204438896U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534917A (en) * | 2014-12-24 | 2015-04-22 | 深圳孚沃德斯科技有限公司 | Energy-saving control device and method for closed cooling circulation system |
| CN107065543A (en) * | 2017-03-29 | 2017-08-18 | 山东华星石油化工集团有限公司 | A kind of optimal Water temperature control method of recirculating cooling water system |
| CN111750596A (en) * | 2020-07-09 | 2020-10-09 | 山东齐鲁增塑剂股份有限公司 | Circulating water energy-saving system and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20211224 |