CN102322748A - Direct air-cooling system with peak cooling device - Google Patents
Direct air-cooling system with peak cooling device Download PDFInfo
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- CN102322748A CN102322748A CN 201110217862 CN201110217862A CN102322748A CN 102322748 A CN102322748 A CN 102322748A CN 201110217862 CN201110217862 CN 201110217862 CN 201110217862 A CN201110217862 A CN 201110217862A CN 102322748 A CN102322748 A CN 102322748A
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- direct air
- spike
- peak
- condenser
- cooling
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Abstract
The invention discloses a direct air-cooling system with a peak cooling device. The system aims to solve the problem that the back pressure of the existing direct air-cooling system running in summer is high. The direct air-cooling system disclosed by the invention comprises a main steam-discharge pipe (2) arranged between a main turbine steam-discharge device (1) and a direct air-cooling condenser (3), a condensed water pipe (4) is arranged between the direct air-cooling condenser (3) and a host hot well (5), the main steam-discharge pipe (2) is communicated with one end of a peak steam-discharge pipe (6), the other end of the peak steam-discharge pipe (6) is communicated with a peak condenser (8), the peak steam-discharge pipe (6) is provided with an electric steam-discharge butterfly valve (7), a peak condensed water pipe (9) is arranged between the peak condenser (8) and the host hot well (5), and a ventilated wet-cooling tower (12) is communicated with a water inlet of the peak condenser (8) by a peak cooling recirculated water inlet pipe (10). By using the direct air-cooling system disclosed by the invention, a purpose of reducing the fully-loaded back pressure of a direct air-cooling unit in summer is achieved.
Description
Technical field
The present invention relates to a kind of thermal power plant direct air cooling system, in direct air cooling system, set up spike cooling system in summer, reduced the existing direct air cooling system operation back pressure in summer.
Background technology
Built many air coolings power station in the rich coal of northern China water-deficient area, these early stage Direct Air-Cooled power stations of building were because coal price was very low at that time; The air cooling apparatus price of import is expensive again; Consider that from economic angle the summer of unit institute optimal design, full carbuncle on the back was pressed all than higher, in addition along with these equipment are passed service time; It is serious that the fouling of air cooling heat radiator also becomes; Also caused direct air cooling system summer operation back pressure high, these factors have directly caused the coal consumption of unit high, and the thermal efficiency is low and less economical.
Summary of the invention
The invention provides a kind of direct air cooling system that has peak cooling device, the coal consumption that has solved the high unit that is brought of existing direct air cooling system summer operation back pressure is high, the low and less economical problem of the thermal efficiency.
The present invention overcomes the above problems through following scheme:
A kind of direct air cooling system that has peak cooling device; Comprise main steam turbine steam exhaust device, direct air cooled condenser and main frame hot well; Be provided with main blow-off line between main steam turbine steam exhaust device and the direct air cooled condenser; Between direct air cooled condenser and main frame hot well, be provided with condensing water conduit, described main blow-off line is communicated with an end of spike blow-off line, and the other end of spike blow-off line is communicated with the spike condenser; The spike blow-off line is provided with electronic steam discharge butterfly valve; Between spike condenser and main frame hot well, be provided with the spike condensing water conduit, the clammy tower that ventilates is communicated with the water inlet of spike condenser through spike cool cycles inlet pipeline, and the delivery port of spike condenser is communicated with the clammy tower that ventilates through spike cool cycles outlet pipeline.
The clammy tower of said ventilation is the clammy tower of nature or mechanical draft.
Described electronic steam discharge butterfly valve is opened when summer, the unit operation back pressure was high, when unit spring and autumn operation back pressure is low, closes, and plays the effect of parallel running summer, plays the effect with direct air cooling system and spike cooling system partition winter.
The present invention has reduced the displacement that gets into direct air cooling system, and then reduces the thermic load of direct air cooling system, reaches to reduce the Direct Air-cooled Unit purpose that summer, full carbuncle on the back was pressed.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Specific embodiment
A kind of direct air cooling system that has peak cooling device; Comprise main steam turbine steam exhaust device 1, direct air cooled condenser 3 and main frame hot well 5; Be provided with main blow-off line 2 between main steam turbine steam exhaust device 1 and the direct air cooled condenser 3; Between direct air cooled condenser 3 and main frame hot well 5, be provided with condensing water conduit 4, described main blow-off line 2 is communicated with an end of spike blow-off line 6, and the other end of spike blow-off line 6 is communicated with spike condenser 8; Spike blow-off line 6 is provided with electronic steam discharge butterfly valve 7; Between spike condenser 8 and main frame hot well 5, be provided with spike condensing water conduit 9, the clammy tower 12 that ventilates is communicated with the water inlet of spike condenser 8 through spike cool cycles inlet pipeline 10, and the delivery port of spike condenser 8 is communicated with the clammy tower 12 that ventilates through spike cool cycles outlet pipeline 11.
The clammy tower 12 of said ventilation is clammy towers of nature or mechanical draft.
The exhaust steam in steam turbine that comes out from main steam turbine steam exhaust device 1 passes through direct air cooling system master blow-off line 2; One the tunnel gets in the direct air cooled condenser 3; Carry out surface heat exchanging with air, the exhaust steam condensation is after direct air cooling system condensing water conduit 4, get into main frame hot well 5.
Another road exhaust steam from Direct Air-Cooled master blow-off line 2 with condensation behind the spike cooling circulating water system surface heat exchanging, gets into main frame hot wells 5 through spike condensing water conduit 9 in spike blow-off line 6, entering spike condenser 8.Wherein the spike cooling circulating water system gets into spike condenser 8 by spike cool cycles inlet channel 10; Flow out from spike cool cycles outlet conduit 11; In nature or the clammy tower 12 of mechanical draft, dispel the heat, backwater gets into spike cool cycles inlet channel 10 again, recycles.
Spike blow-off line 6 is provided with electronic steam discharge butterfly valve 7, when summer, the unit operation back pressure was high, opens, and when spring and autumn unit operation back pressure is low, closes, and plays the effect with direct air cooling system and spike cooling system partition.Compare with water spray spike cooling systems such as existing employing nozzle atomizations, can reduce water content consumption.
Claims (2)
1. direct air cooling system that has peak cooling device; Comprise main steam turbine steam exhaust device (1), direct air cooled condenser (3) and main frame hot well (5); Be provided with main blow-off line (2) between main steam turbine steam exhaust device (1) and the direct air cooled condenser (3); Between direct air cooled condenser (3) and main frame hot well (5), be provided with condensing water conduit (4); It is characterized in that described main blow-off line (2) is communicated with an end of spike blow-off line (6), the other end of spike blow-off line (6) is communicated with spike condenser (8); Spike blow-off line (6) is provided with electronic steam discharge butterfly valve (7); Between spike condenser (8) and main frame hot well (5), be provided with spike condensing water conduit (9), the clammy tower (12) that ventilates is communicated with the water inlet of spike condenser (8) through spike cool cycles inlet pipeline (10), and the delivery port of spike condenser (8) is communicated with the clammy tower (12) that ventilates through spike cool cycles outlet pipeline (11).
2. a kind of direct air cooling system that has peak cooling device according to claim 1 is characterized in that, the clammy tower of said ventilation (12) is the clammy tower of nature or mechanical draft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110217862 CN102322748A (en) | 2011-08-01 | 2011-08-01 | Direct air-cooling system with peak cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110217862 CN102322748A (en) | 2011-08-01 | 2011-08-01 | Direct air-cooling system with peak cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102322748A true CN102322748A (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110217862 Pending CN102322748A (en) | 2011-08-01 | 2011-08-01 | Direct air-cooling system with peak cooling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102322748A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337933A (en) * | 2011-08-17 | 2012-02-01 | 山西漳山发电有限责任公司 | Cooling system of thermal power plant |
| CN102607291A (en) * | 2012-03-08 | 2012-07-25 | 双良节能系统股份有限公司 | Direct air-cooling and condensing system with peak cooler |
| CN104501275A (en) * | 2014-12-21 | 2015-04-08 | 中国能源建设集团山西省电力勘测设计院 | Stepped heating and supplying system sufficiently utilizing waste heat of power plant |
| CN106091717A (en) * | 2016-07-27 | 2016-11-09 | 双良节能系统股份有限公司 | Direct air cooling system with peak cooling device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852105A (en) * | 2010-05-25 | 2010-10-06 | 山西省电力勘测设计院 | Steam exhaust direct-discharge system of feed pump turbine of direct air-cooling unit |
| CN201772768U (en) * | 2010-09-02 | 2011-03-23 | 洛阳隆华传热科技股份有限公司 | Air and steam parallel high-efficiency composite condenser |
-
2011
- 2011-08-01 CN CN 201110217862 patent/CN102322748A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852105A (en) * | 2010-05-25 | 2010-10-06 | 山西省电力勘测设计院 | Steam exhaust direct-discharge system of feed pump turbine of direct air-cooling unit |
| CN201772768U (en) * | 2010-09-02 | 2011-03-23 | 洛阳隆华传热科技股份有限公司 | Air and steam parallel high-efficiency composite condenser |
Non-Patent Citations (1)
| Title |
|---|
| 《中国优秀硕士学位论文全文数据库》 20081231 崔传涛 火电厂干湿联合冷却系统优化设计方法的研究 , 第12期 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337933A (en) * | 2011-08-17 | 2012-02-01 | 山西漳山发电有限责任公司 | Cooling system of thermal power plant |
| CN102607291A (en) * | 2012-03-08 | 2012-07-25 | 双良节能系统股份有限公司 | Direct air-cooling and condensing system with peak cooler |
| CN104501275A (en) * | 2014-12-21 | 2015-04-08 | 中国能源建设集团山西省电力勘测设计院 | Stepped heating and supplying system sufficiently utilizing waste heat of power plant |
| CN106091717A (en) * | 2016-07-27 | 2016-11-09 | 双良节能系统股份有限公司 | Direct air cooling system with peak cooling device |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20120118 |