CN102183156A - Parallel arranged indirect air-cooling systems of thermal power plant - Google Patents
Parallel arranged indirect air-cooling systems of thermal power plant Download PDFInfo
- Publication number
- CN102183156A CN102183156A CN2011100790533A CN201110079053A CN102183156A CN 102183156 A CN102183156 A CN 102183156A CN 2011100790533 A CN2011100790533 A CN 2011100790533A CN 201110079053 A CN201110079053 A CN 201110079053A CN 102183156 A CN102183156 A CN 102183156A
- Authority
- CN
- China
- Prior art keywords
- air cooling
- cooling tower
- indirect
- power plant
- gravity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a novel method for arranging cooling equipment of indirect air-cooling systems, namely due to a cooling mode that a naturally ventilating indirect air-cooling tower and a mechanically ventilating indirect air-cooling tower are connected in parallel with each other, the problem that the air-cooling systems of a thermal power plant under some complicated weather conditions and running conditions cannot be arranged rationally can be solved. By the method, the influence of air speed, air direction and temperature of the environment on the cooling system is reduced; the method has the characteristics of reliable anti-freezing measure, flexible operation, convenience of arrangement and saving of investment; and a feasible and optimized technical way is provided for the design of the air-cooling thermal power plant under some complicated weather conditions.
Description
Technical field
The present invention relates to the new arrangement mode of steam power plant's Air-cooled Unit indirect air cooling system cooling device, adopt gravity-flow ventilation indirect dry cooling tower and mechanical draft indirect dry cooling tower cooling device in parallel, effectively solve the reasonable disposition problem of steam power plant's air cooling system under some IFR conditions and the service condition.
Background technology
The main cooling device of present domestic large-size thermal power plant indirect air cooling system adopts the main cooling device of gravity-flow ventilation air cooling tower, subsidiary engine cooling water or small power plant to adopt the mechanical draft air cooling tower usually, and these two kinds of cooling devices always are applied to the power plant indirect air cooling system singlely.
Steam power plant with 2 * 300MW level air cooling heat supply unit is an example, can adopt gravity-flow ventilation indirect dry cooling tower of a machine assembly or configuration mechanical draft indirect dry air cooling tower as cooling device.
To a gravity-flow ventilation indirect air cooling of machine Tower System, the steam turbine heat exhaust is less during the Winter heat supply, and is comparatively outstanding in the antifreeze problem of severe cold area air cooling system, can influence the safe operation of whole system.
To the mechanical draft indirect dry cooling Tower System, to summer strong wind resistivity is preferably arranged, whole year operation is more flexible, the preventing freeze in winter problem more easily solves, but the power consumption of blower fan is big, operating cost is higher.
Respectively there are pluses and minuses in above-mentioned 2 kinds of systems, but all can not solve the reasonable disposition problem of steam power plant's air cooling system under some IFR conditions and the service condition well, solve the problem that steam power plant's indirect air cooling system adapts to severe cold condition, adapts to summer high temperature strong wind, reduction fixed investment and operating cost so should seek novel collocation method.
Summary of the invention
Steam power plant of the present invention disposes indirect air cooling system side by side, is the selection issue of steam power plant's air cooling system cooling device of solving specified conditions, proposes the indirect air cooling system that gravity-flow ventilation indirect dry cooling tower and many group mechanical draft indirect dry cooling towers are connected in parallel.
The technical solution used in the present invention is: gravity-flow ventilation air cooling tower and many group mechanical draft air cooling towers are connected in parallel by water circulating pump and circulating water pipeline.Wherein, the modes of this gravity-flow ventilation air cooling tower and the cooling in parallel of many group mechanical draft air cooling towers adopt gravity-flow ventilation air cooling tower of a machine assembly and many group mechanical draft air cooling towers or adopt gravity-flow ventilation air cooling tower of two machine assembly and the parallel cooling modes of organizing the mechanical draft air cooling towers more.
The invention has the beneficial effects as follows: the indirect air cooling system that gravity-flow ventilation air cooling tower and many group mechanical draft air cooling towers is connected in parallel and forms by the integrated method of technology, reduced the area of natural cooling tower, and the mechanical draft air cooling tower is made up of some lattice, and arrangement is flexible.Heating season, the reasonable coupling of the cooling capacity of gravity-flow ventilation indirect dry cooling tower and steam turbine heat exhaust can guarantee that the gravity-flow ventilation indirect dry cooling tower has sufficiently high load to freeze to prevent recirculated water during heat supply running.Gravity-flow ventilation indirect dry cooling tower whole year operation is to save station service to greatest extent, and the unit number that the force ventilation indirect dry cooling tower puts into operation can be according to factors such as heating season thermic load variation, hot season meteorological condition, unit load rate decisions, and a whole set of cooling system Load Regulation, the method for operation are very flexible.On economy, the initial cost of this scheme is economized most, and comprehensive annual total cost is minimum.
Description of drawings
The novel indirect air cooling system figure that Fig. 1 adopts gravity-flow ventilation indirect dry cooling tower and mechanical draft indirect dry cooling tower to be connected in parallel for northwest 2 * 300MW level air cooling heat supply unit power plant's schematic design phase.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
See also shown in Figure 1, the air cooling system figure that it adopts gravity-flow ventilation indirect dry cooling tower and mechanical draft indirect dry cooling tower to be connected in parallel for northwest 2 * 300MW level air cooling heat supply unit power plant's schematic design phase.Wherein, the device name of each representative of each figure number is: 1, boiler; 2, superheater; 3, steam turbine; 4, surface condenser; 5, condensate pump; 6, tramp iron separator; 7, condensate booster pump; 8, low-pressure heater; 9, oxygen-eliminating device; 10, feed pump; 11, high-pressure heater; 12, water circulating pump; 13, expansion tank; 14, full Aluminium Radiator; 15, gravity-flow ventilation indirect dry cooling tower; 16, force ventilation indirect dry cooling tower; 17, generator.Because each parts are prior art, in this not explanation one by one.As example, to gravity-flow ventilation indirect dry cooling tower of a machine, all the system schema that is connected in parallel of force ventilation indirect dry cooling tower and gravity-flow ventilation indirect dry cooling tower and mechanical draft indirect dry cooling tower carries out technical characteristic comparison and economic analysis (seeing Table 1～3).
Table 1: three kinds of indirect air cooling system design for scheme parameters relatively
Table 2: three kinds of indirect air cooling system scheme technical characteristics relatively
Table 3: three kinds of indirect air cooling system scheme economy relatively
Annotate: 1. calculating used rate of return on investment in the table is 10%, and the depreciation maintenance scale of charges is 2.5%;
2. the cost electricity price is counted according to 143 yuan/MW.h in the table; The standard coal price is by 204 yuan/t;
3. land price is according to 100,000 yuan of/mu meters in showing.
Comprehensively compared by last table, it is all lower than the initial cost and the operating cost of natural draft indirect dry cooling system and force ventilation indirect air cooling system to dispose indirect air cooling system side by side, so annual total cost is also minimum, so this scheme is better than other two schemes.
To the force ventilation indirect air cooling system, close heat exchange unit sparge pipe valve ratio and be easier to, also can take to accompany hot measure in case of necessity, the heat exchanging unit also can be added a cover at the top except that adopting the shutter sealing, reduces free convection to greatest extent, and antifreezing measures are reliable.
The part of the indirect air cooling system of configuration is the gravity-flow ventilation indirect dry cooling tower side by side, has the lower advantage of station service power consumption rate; Another part is the force ventilation indirect dry cooling tower, has to drop into to reach the advantage that antifreeze problem more easily solves flexibly, and be a kind of novel indirect air cooling system.
Adopt the be connected in parallel design principle and the method for operation of indirect air cooling system of configuration of gravity-flow ventilation air cooling tower of the present invention and mechanical draft air cooling tower as follows:
According to different site conditions can select a machine one tower to add machine power tower, two machines, one tower adds multiple combination forms such as machine power tower, the cooling capacity of gravity-flow ventilation indirect dry cooling tower need with the steam turbine heat exhaust rationally coupling have sufficiently high load to freeze in the winter time to guarantee the gravity-flow ventilation indirect dry cooling tower to prevent recirculated water.Gravity-flow ventilation indirect dry cooling tower whole year operation is to save station service to greatest extent, and the unit number that the force ventilation indirect dry cooling tower puts into operation can change or factor decisions such as hot season meteorological condition, unit load rate according to the heating season thermic load, tackle heat load adjustment in winter, summer high temperature phase or strong wind phase flexibly, or the adjusting of heavy-duty service operating mode.
In sum, the invention provides the indirect air cooling system that gravity-flow ventilation air cooling tower and mechanical draft air cooling tower are connected in parallel and dispose, system is reasonable in design, the safe operation of unit can be guaranteed, so offer the application of patent of invention in accordance with the law under the situation of reducing investment outlay, save the area, reduce operating cost; Technology contents of the present invention and technical characterstic the sixth of the twelve Earthly Branches disclose as above, yet the personage who is familiar with this technology still may do various replacement and the modifications that do not deviate from this case invention spirit based on announcement of the present invention.Therefore, all and of the present invention structures, device, feature etc. are approximate, identical, all should belong to of the present invention founding within purpose and the claim.
Claims (2)
1. steam power plant disposes indirect air cooling system side by side, it is characterized in that: for indirect air cooling system, adopt gravity-flow ventilation air cooling tower and the cooling in parallel of many group mechanical draft air cooling towers, wherein, the gravity-flow ventilation air cooling tower is connected with parallel way with many group mechanical draft air cooling tower common recycle water pumps and by circulating water pipeline.
2. steam power plant as claimed in claim 1 disposes indirect air cooling system side by side, it is characterized in that: the modes of gravity-flow ventilation air cooling tower and the cooling in parallel of many group mechanical draft air cooling towers, adopts gravity-flow ventilation air cooling tower of a machine assembly and many group mechanical draft air cooling towers or adopts gravity-flow ventilation air cooling tower of two machine assembly and the parallel cooling modes of organizing the mechanical draft air cooling towers more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100790533A CN102183156A (en) | 2011-03-30 | 2011-03-30 | Parallel arranged indirect air-cooling systems of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100790533A CN102183156A (en) | 2011-03-30 | 2011-03-30 | Parallel arranged indirect air-cooling systems of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102183156A true CN102183156A (en) | 2011-09-14 |
Family
ID=44569407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100790533A Pending CN102183156A (en) | 2011-03-30 | 2011-03-30 | Parallel arranged indirect air-cooling systems of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102183156A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636043A (en) * | 2012-04-16 | 2012-08-15 | 双良节能系统股份有限公司 | Dry and wet type united industrial circulating water cooling system |
| CN102914180A (en) * | 2012-11-02 | 2013-02-06 | 中国神华能源股份有限公司 | Indirect air cooling system and antifreezing and pre-warming method thereof |
| CN103580504A (en) * | 2013-11-06 | 2014-02-12 | 国家电网公司 | Extra-valve cooling system used for direct current converter valve and operating method thereof |
| CN107462084A (en) * | 2017-07-28 | 2017-12-12 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of combining structure of host machine cooling system and subsidiary engine cooling system |
| CN108253814A (en) * | 2017-12-29 | 2018-07-06 | 中国电建集团河北省电力勘测设计研究院有限公司 | The combination cooling system and cooling means of a kind of electric power plant circulating water |
| CN108469185A (en) * | 2018-01-25 | 2018-08-31 | 济南蓝辰能源技术有限公司 | A kind of antifreeze return water temperature control method of indirect air cooling system |
| CN110906633A (en) * | 2019-11-29 | 2020-03-24 | 灏昕汽车零部件制造无锡有限公司 | Circulating water segmentation natural cooling system |
| CN111322883A (en) * | 2020-04-07 | 2020-06-23 | 西安热工研究院有限公司 | Combined cooling process of idle water cooling tower and indirect air cooling tower and implementation system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4301861A (en) * | 1975-06-16 | 1981-11-24 | Hudson Products Corporation | Steam condensing apparatus |
| WO2005083342A1 (en) * | 2004-02-27 | 2005-09-09 | Gosudarstvennoe Nauchnoe Uchrejdenie 'institut Teplo-I Massoobmena Im. A.V.Lukova' Nastionalnoy Akademii Nauk Belarusi | Method for cooling in a water cooling tower and a water cooling tower for carrying out said method |
| CN101777393A (en) * | 2010-01-25 | 2010-07-14 | 北京交通大学 | Method for cooling circulating water of conventional island in 1000MW level inland nuclear power plant |
| CN102052857A (en) * | 2009-11-03 | 2011-05-11 | 李宁 | Natural ventilation air-cooling condenser |
| CN202032910U (en) * | 2011-03-30 | 2011-11-09 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Indirect air cooling system configurated in thermal power plant in parallel |
| CN102401581A (en) * | 2011-07-27 | 2012-04-04 | 中国电力工程顾问集团西北电力设计院 | Mixed ventilation indirect cooling tower system and cooling method thereof |
-
2011
- 2011-03-30 CN CN2011100790533A patent/CN102183156A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4301861A (en) * | 1975-06-16 | 1981-11-24 | Hudson Products Corporation | Steam condensing apparatus |
| WO2005083342A1 (en) * | 2004-02-27 | 2005-09-09 | Gosudarstvennoe Nauchnoe Uchrejdenie 'institut Teplo-I Massoobmena Im. A.V.Lukova' Nastionalnoy Akademii Nauk Belarusi | Method for cooling in a water cooling tower and a water cooling tower for carrying out said method |
| CN102052857A (en) * | 2009-11-03 | 2011-05-11 | 李宁 | Natural ventilation air-cooling condenser |
| CN101777393A (en) * | 2010-01-25 | 2010-07-14 | 北京交通大学 | Method for cooling circulating water of conventional island in 1000MW level inland nuclear power plant |
| CN202032910U (en) * | 2011-03-30 | 2011-11-09 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Indirect air cooling system configurated in thermal power plant in parallel |
| CN102401581A (en) * | 2011-07-27 | 2012-04-04 | 中国电力工程顾问集团西北电力设计院 | Mixed ventilation indirect cooling tower system and cooling method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 《热力透平》 20061231 谢天恩 新一轮大型空冷电站设计的思路 211-217 第35卷, 第4期 * |
| 谢天恩: "新一轮大型空冷电站设计的思路", 《热力透平》, vol. 35, no. 4, 31 December 2006 (2006-12-31), pages 211 - 217 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636043A (en) * | 2012-04-16 | 2012-08-15 | 双良节能系统股份有限公司 | Dry and wet type united industrial circulating water cooling system |
| CN102914180A (en) * | 2012-11-02 | 2013-02-06 | 中国神华能源股份有限公司 | Indirect air cooling system and antifreezing and pre-warming method thereof |
| CN103580504A (en) * | 2013-11-06 | 2014-02-12 | 国家电网公司 | Extra-valve cooling system used for direct current converter valve and operating method thereof |
| CN103580504B (en) * | 2013-11-06 | 2017-02-22 | 国家电网公司 | Extra-valve cooling system used for direct current converter valve and operating method thereof |
| CN107462084A (en) * | 2017-07-28 | 2017-12-12 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of combining structure of host machine cooling system and subsidiary engine cooling system |
| CN108253814A (en) * | 2017-12-29 | 2018-07-06 | 中国电建集团河北省电力勘测设计研究院有限公司 | The combination cooling system and cooling means of a kind of electric power plant circulating water |
| CN108253814B (en) * | 2017-12-29 | 2020-07-10 | 中国电建集团河北省电力勘测设计研究院有限公司 | Combined cooling system and cooling method for circulating water of power plant |
| CN108469185A (en) * | 2018-01-25 | 2018-08-31 | 济南蓝辰能源技术有限公司 | A kind of antifreeze return water temperature control method of indirect air cooling system |
| CN108469185B (en) * | 2018-01-25 | 2019-09-20 | 济南蓝辰能源技术有限公司 | A kind of antifreeze return water temperature control method of indirect air cooling system |
| CN110906633A (en) * | 2019-11-29 | 2020-03-24 | 灏昕汽车零部件制造无锡有限公司 | Circulating water segmentation natural cooling system |
| CN111322883A (en) * | 2020-04-07 | 2020-06-23 | 西安热工研究院有限公司 | Combined cooling process of idle water cooling tower and indirect air cooling tower and implementation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102183156A (en) | Parallel arranged indirect air-cooling systems of thermal power plant | |
| US10808685B2 (en) | Dispatchable combined cycle power plant | |
| AU2007315397B2 (en) | Heating system, wind turbine or wind park, method for utilizing surplus heat of one or more wind turbine components and use hereof | |
| US9518787B2 (en) | Thermal energy storage system comprising a combined heating and cooling machine and a method for using the thermal energy storage system | |
| CN106940033B (en) | More equipment based on abandonment electric energy combine high/low temperature independence storage heating system | |
| CN202032910U (en) | Indirect air cooling system configurated in thermal power plant in parallel | |
| CN103017231A (en) | Heat supply network water circulating pump energy-saving driving system of thermal power plant | |
| CN202403438U (en) | Plateau air cooling industrial machine set | |
| CN107120980A (en) | Vertically arranged mixed ventilation direct air cooling system outside a kind of air cooling tubes condenser tower | |
| CN202102727U (en) | Closed type cooling water system for nuclear power plant | |
| CN104235870A (en) | Condenser dead steam waste heat recovery and energy saving device and energy saving method | |
| Jiang | Wind turbine cooling technologies | |
| CN201637291U (en) | Circulating water system cooling equipment of wet-cooling unit | |
| CN102337933A (en) | Cooling system of thermal power plant | |
| CN105464725A (en) | Direct-air-cooling power generation system with natural ventilation cooling tower | |
| CN202348352U (en) | Cooling system in thermal power plant | |
| KR20120084955A (en) | Hybrid heating and cooling system with hot water supply | |
| CN110307736B (en) | Dry-wet combined cooling tower with natural ventilation | |
| CN204984511U (en) | Condensing formula unit cold junction system of power plant based on parallelly connected arranging | |
| CN212538364U (en) | Special ground source heat pump balance system for multi-span greenhouse | |
| CN210220750U (en) | Natural draft's dry and wet cooling tower that unites | |
| CN106761970A (en) | A kind of many joint construction unit exhaust steam cooling systems and many joint construction air cooling turbo-generators | |
| Jingyu et al. | Research on applying dry cooling technology in conventional island of ap1000 nuclear power in china | |
| CN208269248U (en) | A kind of Comprehensive Utilization Power Plant steam exhaust, subsidiary engine cooling water heat, solar energy step heating system | |
| CN101881564A (en) | Cooling device for circulating water system of wet cooling unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110914 |