CN205641746U - Power plant circulating cooling water system - Google Patents
Power plant circulating cooling water system Download PDFInfo
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- CN205641746U CN205641746U CN201620381695.7U CN201620381695U CN205641746U CN 205641746 U CN205641746 U CN 205641746U CN 201620381695 U CN201620381695 U CN 201620381695U CN 205641746 U CN205641746 U CN 205641746U
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Abstract
The utility model provides a power plant circulating cooling water system which characterized in that: cooling tower dryer side is equipped with radiator tube and restraints, and recirculating cooling water system is closed circulation, and condenser circulating pipe is closed structure, connects mixing condenser and condenser circulating water pump in its pipeline, and mixing condenser links to each other with the steam turbine, and mixing condenser delivery port department is equipped with the pressure regulating hydraulic turbine and bypass regulation valve, and cooling tower water spray system links to each other through spraying circulating water pump with the cooling tower catch basin. The utility model discloses the steam turbine backpressure can be reduced or the heat -sinking capability of cooling tower one side is improved, reduce system maintenance work load by a wide margin, can save switching formula water heat exchanger, closed circulation water can also directly cause hot user when the circulating water waste heat is usable, reduce the circulating water pump lift more than 30%, low running cost. Recirculating cooling water system clammy relatively can practice thrift 30%~40% the water yield consumption whole year, mixing condenser is small, and simple structure can practice thrift a large amount of investments for surface condenser.
Description
Technical field
The utility model proposes a kind of New Cycle cooling water system, can be used for the cold end of condensing steam turbine generator group cold
But.It is suitable for inclusion in all kinds of power plant at interior employing condensing steam turbine generator of the nuclear power plant, is particularly well-suited to winter seasonal
Water-deficient area or the unit that winter, circulating water afterheat utilized.
Background technology
The circulation that the clammy Turbo-generator Set of tradition uses the wet cooling tower of band filler to connect with surface condenser is cold
But Turbine Cold Junction is cooled down by water system, and recirculated cooling water is at cooling tower side and air direct contact heat transfer, at steamer
Machine cold end side is by heat exchange tube of condenser bundle to turbine discharge condensing heat-exchange, and recirculated cooling water is the most direct with turbine discharge
Contact.Refer to accompanying drawing 1.The major defect of traditional wet recirculating cooling water system: (1) water consumption is big；(2) circulating pump head
Height, power consumption is big；(3) cooling tower filler is fragile, and operation maintenance workload is big, and maintenance cost is high；(4) open cycle cooling water
Water quality inferiority, it is impossible to directly feed heat user in the winter time, utilizes to circulating water afterheat in winter and makes troubles.
Utility model content
The purpose of this utility model is to change the open cycle cooling water of traditional wet recirculating cooling water system into enclosed to follow
Ring water cooling water, and reduce the impact on system radiating ability as far as possible.
For achieving the above object, this utility model provides a kind of circulating cooling water of power plant system, including cooling tower air duct, receives
Hydrophone, cooling tower water spray system, cooling tower collecting-tank, condenser circulating water pipe, steam-water circulation system, it is characterised in that: cooling
Tower air duct side is provided with radiator tube bank, and recirculating cooling water system is closed cycle, and condenser circulating water pipe is closed type structure, its pipe
Connecting direct-contact type condenser and condenser water circulating pump in road, direct-contact type condenser is connected with steam turbine, and direct-contact type condenser goes out
Being provided with the pressure regulation hydraulic turbine and bypass valve at the mouth of a river, cooling tower water spray system and cooling tower collecting-tank are by Sprayer Circulation water pump
It is connected.
Radiator tube bank is stainless steel.
Cooling tower can use air cooling way.
Relatively conventional design, good effect of the present utility model is:
1, after turbine condenser side uses direct-contact type condenser, terminal temperature difference can reduce by 1 DEG C ~ 5 DEG C, it is possible to decrease steam turbine
Back pressure or the heat-sinking capability of raising cooling tower side；
2, recirculated cooling water uses closed-type circulating cooling water, and system maintenance work amount can be greatly reduced；
3, after recirculated cooling water uses closed-type circulating cooling water, it is simple to cool down water parallel running or according to need with subsidiary engine enclosed
To be grouped in tower and subsidiary engine cooling water module is set, it is simple to host-slave computers system is integrated, and can save open and close type water-to-water heat exchanger, work as circulation
When water waste heat may utilize, closed cycle water can also be directed directly to heat user；
4, the tube bank of cooling tower side radiator can use stainless steel, reduces the requirement to spraying cooling water water quality, also may be used
Ensure the cooling effect of cooling tower in the way of by regular pickling radiator outer surface, just do not affect condensate polishing system
Often run, reduce maintenance workload and maintenance cost, can meet service life or higher than power plant's life cycle；According to condition of water quality
And results of technical-economical comparison, radiator tube bank may be used without other material, can flexible configuration as required；
5, closed-type circulating cooling water system water resistance is little, it is possible to decrease circulating pump head more than 30%；
6, the spraying cooling water yield belongs to open cycle cooling water, as long as meeting evaporation and heat-exchange requirement, quantity of circulating water can
Being greatly decreased, and run in tower, do not have Long-distance Pipeline for Water Conveyance, operating cost is low；
7, can close Sprayer Circulation water system winter, cooling tower dry-running, the most clammy recirculating cooling water system is annual
The water content consumption of 30% ~ 40% can be saved；
8, direct-contact type condenser volume is little, simple in construction, can save great amount of investment relative to surface condenser.
Accompanying drawing explanation
Fig. 1 is tradition thermal power plant wet type recirculating cooling water system principle system figure；
Fig. 2 is Novel fire circulating cooling water of power plant system principle system diagram.
In figure: 1, cooling tower air duct；2, water collection device；3, cooling tower water spray system；4, filler；5, radiator tube bank；6, cold
But tower collecting-tank；7, Sprayer Circulation water pipe；8, condenser circulating water pipe；9, Sprayer Circulation water pump；10, the pressure regulation hydraulic turbine；11、
Bypass valve；12, direct-contact type condenser；13, surface condenser；14, condenser water circulating pump；15, steam turbine；16, pot
Stove；17, condensed water precision treatment device；18, heater；19, oxygen-eliminating device；20, condensate pump；21, tramp iron separator.
Detailed description of the invention
The cooling tower filler 4 of traditional wet recirculating cooling water system is changed to radiator tube bank 5, by steam turbine surface-type
Condenser 13 changes to direct-contact type condenser 12, and recirculated water is changed into closed-up water by opened water, increases the cooling of cooling tower Sprayer Circulation
Water system, refers to accompanying drawing 1 and accompanying drawing 2, and in figure, numbering 17 ~ 21 is for comprising except ferrum, Ion exchange resin, deoxygenation, heating and boost
At interior steam-water circulation system.When this utility model runs, Sprayer Circulation water is passed through Sprayer Circulation water pipe by Sprayer Circulation water pump 9
7 and cooling tower water spray system 3 be sprayed to radiator and restrain 5 outer surfaces, shower water by closed cycle water heating evaporation to air
In, the heated rear density of cold air diminishes and ascends into cooling tower air duct 1, forms draft, maintains circulation, through radiator
Can be retained by major part when the drop swept along in humid air after tube bank 5 and cooling tower spray system 3 is through water collection device 2.Enclosed
Recirculated water is driven by condenser water circulating pump 14, by condenser circulating water pipe 8 enter cooling tower inner radiator tube bank 5, one
Point heat is taken away rear temperature by shower water evaporative heat loss and is reduced, then by condenser circulating water pipe 8 and the pressure regulation hydraulic turbine 10 or
It is sprayed onto after bypass valve 11 pressure regulation in the relatively low direct-contact type condenser of pressure 12, with turbine discharge hybrid cooling, remains mixed
Back pressure in box-like condenser 12, closed-up water condenses gravity flow after water mixes and enters bottom condenser in water tank with turbine discharge, and one
Part water returns to condenser water circulating pump 14 entrance, enters next one circulation.Native system maintains the cooling tower wind of air draft
Cylinder 1 also can be replaced by force ventilated blower fan.
Claims (3)
1. a circulating cooling water of power plant system, including cooling tower air duct, water collection device, cooling tower water spray system, cooling tower catchments
Pond, condenser circulating water pipe, steam-water circulation system, it is characterised in that: cooling tower air duct side is provided with radiator tube bank, circulating cooling
Water system is closed cycle, and condenser circulating water pipe is closed type structure, connects direct-contact type condenser and condenser follows in its pipeline
Ring water pump, direct-contact type condenser is connected with steam turbine, and direct-contact type condenser water outlet is provided with the pressure regulation hydraulic turbine and bypass regulation
Valve, cooling tower water spray system is connected by Sprayer Circulation water pump with cooling tower collecting-tank.
Circulating cooling water of power plant system the most according to claim 1, it is characterised in that: radiator tube bank is stainless steel
Matter.
Circulating cooling water of power plant system the most according to claim 1, it is characterised in that: cooling tower uses air cooling way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620381695.7U CN205641746U (en) | 2016-05-03 | 2016-05-03 | Power plant circulating cooling water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620381695.7U CN205641746U (en) | 2016-05-03 | 2016-05-03 | Power plant circulating cooling water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205641746U true CN205641746U (en) | 2016-10-12 |
Family
ID=57059772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620381695.7U Active CN205641746U (en) | 2016-05-03 | 2016-05-03 | Power plant circulating cooling water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205641746U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941036A (en) * | 2017-12-21 | 2018-04-20 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of subsidiary engine cooling water system of high-order arrangement |
| CN109185859A (en) * | 2018-09-12 | 2019-01-11 | 深圳市博众节能工程技术有限公司 | A kind of novel firepower condenser of power plant and its circulating cooling system |
-
2016
- 2016-05-03 CN CN201620381695.7U patent/CN205641746U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941036A (en) * | 2017-12-21 | 2018-04-20 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of subsidiary engine cooling water system of high-order arrangement |
| CN107941036B (en) * | 2017-12-21 | 2023-08-22 | 中国电力工程顾问集团西北电力设计院有限公司 | Auxiliary engine cooling water system arranged at high position |
| CN109185859A (en) * | 2018-09-12 | 2019-01-11 | 深圳市博众节能工程技术有限公司 | A kind of novel firepower condenser of power plant and its circulating cooling system |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |