CN205133267U - Circulating water comprehensive use of resources system of steam power plant - Google Patents
Circulating water comprehensive use of resources system of steam power plant Download PDFInfo
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- CN205133267U CN205133267U CN201520833574.7U CN201520833574U CN205133267U CN 205133267 U CN205133267 U CN 205133267U CN 201520833574 U CN201520833574 U CN 201520833574U CN 205133267 U CN205133267 U CN 205133267U
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Abstract
The utility model discloses a circulating water comprehensive use of resources system of steam power plant, it includes high rate filter, circulating water screenwell, circulating water pump, steam -turbine plant, circulating water cooling tower, water delivery pump and water purification installation. The utility model has the advantages of, (1 )The circulating water is mended to the unboiled water can the gas clean up for the condenser cooling, promotion steam turbine operating efficiency, (2 )Mend the unboiled water of going into and to optimize circulation quality of water, take the circulating water out use again, realize taking out and mend the balanced virtuous circle of entering, realize zero blowdown of cooling tower simultaneously, (3 )Be favorable to ultrafiltration and reverse osmosis to increase water production.
Description
Technical field:
The utility model relates to comprehensive utilization system of water source, particularly relates to a kind of circulating-water in thermal power plant resource comprehensive utilization system.
Background technology:
Circulating-water in thermal power plant, for meeting processing requirement, needs continuous unboiled water or middle water to replace recirculated water, causes the waste of great lot of water resources, bring huge pressure simultaneously for follow-up sewage disposal in operational process.The heat taken out of by turbine condenser of recirculated water also by cooling tower directly discharged to air, cause the significant wastage of the energy.
At present, water utilities company unboiled water is directly by water-purification plant process, and according to water-purification plant operation instruction, unboiled water temperature controls under 26 DEG C of conditions, equipment water production rate is maximum, unboiled water temperature from underground is generally 0-4 DEG C, can not meet the maximum water production rate requirement of equipment, therefore cause the waste of great lot of water resources.
Utility model content:
The purpose of this utility model is to provide a kind of circulating-water in thermal power plant resource comprehensive utilization system.
The purpose of this utility model is implemented by following technical scheme, circulating-water in thermal power plant resource comprehensive utilization system, it comprises high rate filter, circulating water screen well, water circulating pump, steam turbine plant, circulating water cooling tower, water transfer pump and water-purification plant, the water outlet of described high rate filter is connected with the water-in pipeline of described circulating water screen well, the water outlet of described circulating water screen well is connected with the water-in pipeline of described water circulating pump, the water outlet of described water circulating pump is connected with the entrance of cooling water pipeline of described steam turbine plant, the cooling water outlet of described steam turbine plant is connected with the water-in pipeline of described circulating water cooling tower, the tower basin water outlet of described circulating water cooling tower is connected with the water-in pipeline of described water transfer pump, the water outlet of described water transfer pump is connected with the water-in pipeline of described water-purification plant.
Preferably, the water inlet of described high rate filter is provided with the first dosing pump.
Concrete, described water-purification plant comprises ultrafiltration raw water box, more medium filter, ultra-filtration equipment and reverse osmosis unit, ultra-filtration equipment is Nuo Ruite ultra-filtration equipment, reverse osmosis unit adopts LG-DOW anti-pollution reverse osmosis membrane, the water outlet of described water transfer pump is connected with the water-in pipeline of described ultrafiltration raw water box, the water outlet of described ultrafiltration raw water box is connected with the water inlet conduit of described more medium filter, the water outlet of described more medium filter is connected with the water-in pipeline of described ultra-filtration equipment, the water outlet of described ultra-filtration equipment is connected with the water-in pipeline of described reverse osmosis unit.
Preferably, the water inlet of described more medium filter is provided with the second dosing pump.
Preferably, the pipeline connecting the water outlet of described more medium filter and the water-in of described ultra-filtration equipment is provided with the 3rd dosing pump.
Preferably, described reverse osmosis unit water inlet is provided with dispersion agent dosing pump and reductive agent dosing pump.
Concrete, described steam turbine plant comprises turbine condenser, Oil Cooler of Steam Turbine, steam turbine air cooling device and machine envelope refrigerating unit, the entrance of cooling water pipeline that the water outlet of described water circulating pump seals refrigerating unit with described turbine condenser, described Oil Cooler of Steam Turbine, described steam turbine air cooling device and described machine is respectively connected, and described turbine condenser, described Oil Cooler of Steam Turbine, described steam turbine air cooling device are connected with the water-in pipeline of described circulating water cooling tower with the described machine envelope cooling water outlet of refrigerating unit.
The utility model has the advantage of, it is that condenser cooling can gas clean-up that (1) unboiled water fills into recirculated water, promotes steam turbine operation efficiency; (2) unboiled water filled into can optimize cycle water, then is extracted out by recirculated water and use, and realizes taking out filling weighing apparatus and entering benign cycle, realizes cooling tower zero blowdown simultaneously; (3) for devices such as ultrafiltration after winter the recirculated water with condenser heat exchange being extracted out, not only realize condenser waste heat recovery, and according to equipment use explanation, unboiled water temperature controls under 26 DEG C of conditions, equipment water production rate is maximum, therefore, the unboiled water of the recirculated water of 25-28 DEG C in winter compared with 0-4 DEG C, is more conducive to ultrafiltration and reverse osmosis increases water production rate.
Accompanying drawing illustrates:
Fig. 1 is circulating-water in thermal power plant resource comprehensive utilization system structural representation.
High rate filter 1, circulating water screen well 2, water circulating pump 3, circulating water cooling tower 4, water transfer pump 5, turbine condenser 6, Oil Cooler of Steam Turbine 7, steam turbine air cooling device 8, machine envelope refrigerating unit 9, ultrafiltration raw water box 10, more medium filter 11, ultra-filtration equipment 12, reverse osmosis unit 13, the first dosing pump 14, second dosing pump 15,3rd dosing pump 16, dispersion agent dosing pump 17, reductive agent dosing pump 18.
Embodiment
Embodiment 1: circulating-water in thermal power plant resource comprehensive utilization system, it comprises high rate filter 1, circulating water screen well 2, water circulating pump 3, steam turbine plant, circulating water cooling tower 4, water transfer pump 5 and water-purification plant.Steam turbine plant comprises turbine condenser 6, Oil Cooler of Steam Turbine 7, steam turbine air cooling device 8 and machine envelope refrigerating unit 9.Water-purification plant comprises ultrafiltration raw water box 10, more medium filter 11, ultra-filtration equipment 12 and reverse osmosis unit 13, and ultra-filtration equipment 12 is Nuo Ruite ultra-filtration equipment, and reverse osmosis unit 13 adopts LG-DOW anti-pollution reverse osmosis membrane.The water inlet of high rate filter 1 is provided with the first dosing pump 14, the water outlet of high rate filter 1 is connected with the water-in pipeline of circulating water screen well 2, the water outlet of circulating water screen well 2 is connected with the water-in pipeline of water circulating pump 3, the water outlet of water circulating pump 3 respectively with turbine condenser 6, Oil Cooler of Steam Turbine 7, steam turbine air cooling device 8 is connected with the entrance of cooling water pipeline of machine envelope refrigerating unit 9, turbine condenser 6, Oil Cooler of Steam Turbine 7, steam turbine air cooling device 8 is connected with the water-in pipeline of circulating water cooling tower 4 with the machine envelope cooling water outlet of refrigerating unit 9, the tower basin water outlet of circulating water cooling tower 4 is connected with the water-in pipeline of water transfer pump 5, the water outlet of water transfer pump 5 is connected with the water-in pipeline of ultrafiltration raw water box 10, the water outlet of ultrafiltration raw water box 10 is connected with the water inlet conduit of more medium filter 11, the water inlet of more medium filter 11 is provided with the second dosing pump 15, the water outlet of more medium filter 11 is connected with the water-in pipeline of ultra-filtration equipment 12, the water outlet of ultra-filtration equipment 12 is connected with the water-in pipeline of reverse osmosis unit 13.The pipeline connecting the water outlet of more medium filter 11 and the water-in of ultra-filtration equipment 12 is provided with the 3rd dosing pump 16.Reverse osmosis unit 13 water inlet is provided with dispersion agent dosing pump 17 and reductive agent dosing pump 18.
Utilize embodiment 1 circulating-water in thermal power plant resource comprehensive utilization system, the circulating-water in thermal power plant Resource comprehensive utilization method of enforcement, cooling tower moisturizing that it comprises the steps: (1); (2) circulating water treatment in cooling tower; (3) recirculating water purification process;
(1) cooling tower moisturizing: unboiled water is drawn by water utilities company pipeline, enter after high rate filter 1 filters and deliver to circulating water screen well 2, then supply steam turbine plant heat exchange through circulating water screen well 2, heat exchange epigenetic water sends into circulating water cooling tower 4; After the unboiled water that temperature is lower fills into recirculated water, Steam Turbine Condenser Vacuum degree can be improved, improve equipment generated energy.By the continuous efficient flocculant (ProFlocTMC) of annotating in unboiled water of the first dosing pump 14 of high rate filter 1 water inlet, filling rate is 2ppm, is group's particle, improves high rate filter 1 filtration efficiency by the macromolecular substance cohesion in unboiled water.
(2) circulating water treatment in cooling tower: need every day continuous in circulating water cooling tower 4 tower basin or impact type on time to add sterilant and anti-incrustation corrosion inhibitor, the filling rate of anti-incrustation corrosion inhibitor is 20ppm, add sterilant and the ORP table installed new before reverse osmosis is adjusted to 550mv, find when the ORP table installed new before adding sterilant and making reverse osmosis is adjusted to 550mv through long-run test, reverse osmosis unit 13 can not produce dirty stifled, the adjustment rate of water make-up of circulating water cooling tower 4 and the extraction water yield of water transfer pump 5 make the recirculated water chlorine root <120ppm in circulating water cooling tower 4 tower basin simultaneously, sterilant is chlorine bleach liquor.
(3) recirculating water purification process: the recirculated water in circulating water cooling tower 4 tower basin is delivered to ultrafiltration raw water box 10 by water transfer pump 5, after more medium filter 11 processes, deliver to ultra-filtration equipment 12 again to filter, filtration rear ultrafiltration product water is then sent to reverse osmosis unit 13 and uses; Wherein, use the second dosing pump 15 before more medium filter 11 is needed to annotate continuously efficient flocculant (ProFlocTMC), filling rate is 2ppm, use between more medium filter 11 and ultra-filtration equipment 12 the 3rd dosing pump 16 annotate continuously mass concentration be 5% dilute hydrochloric acid, ultrafiltration is produced water pH regulator to 7.8, if it is too high that water pH value is produced in ultrafiltration, can cause end reverse osmosis unit 13 fouling and clogging, it is too low that water pH value is produced in ultrafiltration, can cause water free chlorine etching apparatus in acid condition.
Before ultrafiltration product water enters reverse osmosis unit 13, dispersion agent dosing pump 17 continuous filling dispersion agent PTP-0100 need be used to avoid reverse osmosis unit 13 fouling and clogging, and filling rate is 5ppm; Also need by reductive agent dosing pump 18 annotate mass concentration 15% sodium sulfite solution control chlorine residue, sodium bisulfite is widely used as the reductibility medicament in Water Treatment technique, simultaneously cheaply can not cause too large processing pressure to downstream water treatment facility, configuration concentration of polymer solution needs according to the allotment of dosing pump dosing capacity of water.Use reductive agent dosing pump 18 to add sodium sulfite solution continuously, filling rate is 4ppm, and control at 130-170mv by aobvious for reverse osmosis body ORP table table, reverse osmosis produced water can for each watering technology point.If reverse osmosis body ORP table table is aobvious be greater than 170mv, then reverse osmosis membrane can be caused be oxidized, if reverse osmosis body ORP table table is aobvious be less than 130mv, then reductive agent can occurs and add excessive, cause that reverse osmosis membrane is dirty to be blocked up.
When the reverse osmosis pressure of reverse osmosis unit 13 can be cleaned higher than during 1.4MPa, on-line cleaning comprises pickling and alkali cleaning, first use citric acid pH value to be adjusted to 2-3 to start to start scavenging pump and carry out pickling, until pH value no longer rises, then scavenging pump is stopped, drain liquid, sheet alkali is added again with after clean water reverse osmosis unit to neutrality, EDTA, alkali cleaning is carried out in dodecyl pump sodium sulfonate to on-line cleaning water tank, wherein EDTA add-on is 1% of quality in on-line cleaning water tank, dodecyl pump sodium sulfonate add-on is 0.25% of quality in on-line cleaning water tank, adding sheet alkali again regulates liquid pH value in on-line cleaning water tank to be 12-13, start scavenging pump cleaning, until pH value no longer declines, then scavenging pump is stopped, drain liquid, with clean water reverse osmosis unit to neutral, so far on-line cleaning is complete.
Claims (7)
1. circulating-water in thermal power plant resource comprehensive utilization system, it is characterized in that, it comprises high rate filter, circulating water screen well, water circulating pump, steam turbine plant, circulating water cooling tower, water transfer pump and water-purification plant, the water outlet of described high rate filter is connected with the water-in pipeline of described circulating water screen well, the water outlet of described circulating water screen well is connected with the water-in pipeline of described water circulating pump, the water outlet of described water circulating pump is connected with the entrance of cooling water pipeline of described steam turbine plant, the cooling water outlet of described steam turbine plant is connected with the water-in pipeline of described circulating water cooling tower, the tower basin water outlet of described circulating water cooling tower is connected with the water-in pipeline of described water transfer pump, the water outlet of described water transfer pump is connected with the water-in pipeline of described water-purification plant.
2. circulating-water in thermal power plant resource comprehensive utilization system according to claim 1, is characterized in that, the water inlet of described high rate filter is provided with the first dosing pump.
3. circulating-water in thermal power plant resource comprehensive utilization system according to claim 1 and 2, it is characterized in that, described water-purification plant comprises ultrafiltration raw water box, more medium filter, ultra-filtration equipment and reverse osmosis unit, the water outlet of described water transfer pump is connected with the water-in pipeline of described ultrafiltration raw water box, the water outlet of described ultrafiltration raw water box is connected with the water inlet conduit of described more medium filter, the water outlet of described more medium filter is connected with the water-in pipeline of described ultra-filtration equipment, the water outlet of described ultra-filtration equipment is connected with the water-in pipeline of described reverse osmosis unit.
4. circulating-water in thermal power plant resource comprehensive utilization system according to claim 3, is characterized in that, the water inlet of described more medium filter is provided with the second dosing pump.
5. circulating-water in thermal power plant resource comprehensive utilization system according to claim 3, is characterized in that, the pipeline connecting the water outlet of described more medium filter and the water-in of described ultra-filtration equipment is provided with the 3rd dosing pump.
6. circulating-water in thermal power plant resource comprehensive utilization system according to claim 3, is characterized in that, described reverse osmosis unit water inlet is provided with dispersion agent dosing pump and reductive agent dosing pump.
7. circulating-water in thermal power plant resource comprehensive utilization system according to claim 1 and 2, it is characterized in that, described steam turbine plant comprises turbine condenser, Oil Cooler of Steam Turbine, steam turbine air cooling device and machine envelope refrigerating unit, the water outlet of described water circulating pump respectively with described turbine condenser, described Oil Cooler of Steam Turbine, described steam turbine air cooling device is connected with the entrance of cooling water pipeline of described machine envelope refrigerating unit, described turbine condenser, described Oil Cooler of Steam Turbine, described steam turbine air cooling device is connected with the water-in pipeline of described circulating water cooling tower with the described machine envelope cooling water outlet of refrigerating unit.
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| CN201520833574.7U CN205133267U (en) | 2015-10-23 | 2015-10-23 | Circulating water comprehensive use of resources system of steam power plant |
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| CN201520833574.7U CN205133267U (en) | 2015-10-23 | 2015-10-23 | Circulating water comprehensive use of resources system of steam power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105271549A (en) * | 2015-10-23 | 2016-01-27 | 内蒙古兰太实业股份有限公司 | System and method for comprehensive utilization of circuiting water resource of thermal power plant |
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- 2015-10-23 CN CN201520833574.7U patent/CN205133267U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105271549A (en) * | 2015-10-23 | 2016-01-27 | 内蒙古兰太实业股份有限公司 | System and method for comprehensive utilization of circuiting water resource of thermal power plant |
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| C14 | Grant of patent or utility model | ||
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Address after: 750336 Helan District, Alashan Economic Development Zone, Alashan League, Inner Mongolia Autonomous Region Patentee after: China Salt Inner Mongolia Chemical Co.,Ltd. Address before: 750336 North of Ulanbuhe Street, Alashan Economic Development Zone, Alashan League, Inner Mongolia Autonomous Region Patentee before: INNER MONGOLIA LANTAI INDUSTRIAL Co.,Ltd. |
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Effective date of registration: 20221129 Address after: 750336 Wulanbuhe street, Alxa Economic Development Zone, Alxa League, Inner Mongolia Autonomous Region Patentee after: CNSG JILANTAI CHLOR ALKALI CHEMICAL CO.,LTD. Patentee after: China Salt Inner Mongolia Chemical Co.,Ltd. Address before: 750336 Helan District, Alashan Economic Development Zone, Alashan League, Inner Mongolia Autonomous Region Patentee before: China Salt Inner Mongolia Chemical Co.,Ltd. |