CN204255125U - A kind of thermal power plant Direct Air-Cooled assists spike cooling system - Google Patents
A kind of thermal power plant Direct Air-Cooled assists spike cooling system Download PDFInfo
- Publication number
- CN204255125U CN204255125U CN201420716490.0U CN201420716490U CN204255125U CN 204255125 U CN204255125 U CN 204255125U CN 201420716490 U CN201420716490 U CN 201420716490U CN 204255125 U CN204255125 U CN 204255125U
- Authority
- CN
- China
- Prior art keywords
- air
- cooling
- power plant
- thermal power
- subsidiary engine
- 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.)
- Expired - Fee Related
Links
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
That a kind of thermal power plant Direct Air-Cooled assists spike cooling system disclosed in the utility model, comprise steam turbine, Air-Cooling Island, described steam turbine is communicated with described Air-Cooling Island by a female pipeline, also comprise a condenser and branch pipe(tube), one end of this branch pipe(tube) is connected in parallel on described female pipeline, the other end is connected with described condenser, and the both sides of described condenser have been arranged in parallel a set of heating system and a set of dry wet combination air cooler system respectively; Described dry wet combination air cooler system is also connected with a set of little machine and subsidiary engine circulation.The utility model not only has the water saving feature of the pure Air-Cooling Island technology of thermal power plant, have more the energy-efficient of vaporation-type cooling technology, and native system also solves the problem of exhaust steam in steam turbine heat recovery, abundant integration various excavating resource UTILIZATION OF VESIDUAL HEAT IN potentiality, make it to reach the object reducing coal consumption, improve unit efficiency, save water consumption, the production application of the industry is had very important significance.
Description
Technical field
The utility model relates to the cooling technology field of thermal power station condensing turbine steam discharge, is more particularly that a kind of thermal power plant Direct Air-Cooled assists spike cooling system.
Background technology
The basic circulation of Steam Power Equipment is Rankine cycle, and the working medium of this circulation is water vapour, and water is first heated to form saturated vapor, then continues to be heated to be superheated steam through superheater, and this process is level pressure endothermic process.Superheated steam introduces expansion work in steam turbine, and this acting process is generally considered as adiabatic expansion.The exhaust steam finishing merit in steam turbine enters in condensing equipment, and the cooled releasing latent heat of condensation in condensing equipment also condenses into water, and this process is level pressure exothermic process.Steam discharge to be condensed into after condensate water by Steam Turbine Regenerative System preheating, again enters boiler, starts the next power cycle of steam.For ensureing that working medium must have a cold junction device playing Cold source in the condensing equipment heat that presses decided at the higher level but not officially announced.In the thermodynamic cycle of modern large-scale power station condensing turbine group, this cold junction device is generally made up of with the cooling system can taking away the steam discharge latent heat of condensation in time the condensing equipment of level pressure heat release under vacuum conditions, and the quality of its service behaviour directly affects heat-economy and the security of whole unit.
Different according to cooling system cooling medium, current condensing equipment cooling means mainly contains two kinds: clammy and air cooling.The so-called clammy steam condensation latent heat namely taken away with recirculated cooling water in condensing equipment, directly to contact with air in " drenching with rain " mode at cooling tower Inner eycle water and carry out heat exchange, its whole process is in the state of " wetting ", and therefore its cooling system is called humid-cool system.This type of cooling of the many employings of current conventional power plant.Clammy technical development comparative maturity, heat-economy is relatively good, but from equipment water consumption, condensing equipment water consumption accounts for greatly 42.8% ~ 79.5% of power plant's total water consumption, this is for the power plant being positioned at water-deficient area, will become a very serious problem.
The huge water resource loss of relative humid-cool system, the few air cooling system of water consumption obtains to be paid attention to and development more and more widely.Air cooling system also claims dry cooling-system, relative humid-cool system, and it is the general designation utilizing air directly or indirectly to cool the complete combination such as the necessary unit of turbine discharge and annex thereof.The air cooling tower in air cooling power plant, its recirculated water and air carry out heat exchange indirectly by radiator, the state that whole cooling procedure is in " doing ", so air cooling tower is also called dry cooling tower or dry and cold tower.The difference of heat exchange method is carried out according to air and steam discharge, air cooling system is divided into: direct air cooling system, adopt the indirect air cooling system (i.e. Harmon formula) of surface-type condensing equipment, adopt the indirect air cooling system (i.e. Hai Leshi) of hybrid condensing equipment.With the Air-cooled Unit of capacity compared with wet type cooling unit, its cooling system itself can economize on water more than 97%, and whole plant water saving about more than 65% is the technology that thermal power plant's water-saving amount is maximum.But, ratio of specific heat due to air self holds little feature, cause the problems such as air cooling back pressure in summer is high, energy consumption is large, efficiency is low particularly outstanding, even if summer this area's temperature lower, result of use is still difficult to satisfactory, do not solve air cooling spike in summer cooling problem, the advantage of pure air cooling is by blemish in an otherwise perfect thing.
On the other hand, thermal power plant adopts absorption heat pump to extract exhaust steam in steam turbine waste heat to carry out heating, but due to winter heating season shorter, summer, heat pump left unused, heat pump installations is not fully utilized, also the little machine of some thermal power plant and auxiliary machine circulating cooling water adopt open cooling tower to cool, although good cooling results, water consumption is large, for water-deficient area, heavyly undoubtedly increase operating cost, winter temperature is low simultaneously, does not give full play to the advantage with stronger cooling effect that temperature is low.
So design one namely can solve air cooling spike in summer cooling problem, cooling system tool in the industry of water consumption of can excavating UTILIZATION OF VESIDUAL HEAT IN potentiality again, reach reduction coal consumption, improve unit efficiency, save is of great significance.
Utility model content
The utility model discloses a kind of thermal power plant Direct Air-Cooled and assist spike cooling system, its main purpose is to overcome prior art above shortcomings and shortcoming.
The technical solution adopted in the utility model is as follows:
A kind of thermal power plant Direct Air-Cooled assists spike cooling system, comprise steam turbine, Air-Cooling Island, described steam turbine is communicated with described Air-Cooling Island by a female pipeline, also comprise a condenser and branch pipe(tube), one end of this branch pipe(tube) is connected in parallel on described female pipeline, the other end is connected with described condenser, and the both sides of described condenser have been arranged in parallel a set of heating system and a set of dry wet combination air cooler system respectively; Described dry wet combination air cooler system is also connected with a set of little machine and subsidiary engine circulation.
Further, described condenser is any one in the condensing equipment of absorption heat pump, plate evaporation air cooling tubes condenser, high back pressure heating system or other arbitrary forms.
Further, described little machine and subsidiary engine circulation comprise that little machine subsidiary engine recirculated water supplies water, little machine subsidiary engine recirculated water backwater, circulating pump and cooling tower, and this circulating pump is arranged on described little machine subsidiary engine recirculated water for waterborne.
Further, described little machine subsidiary engine recirculated water water supply and little machine subsidiary engine recirculated water backwater are connected with described dry wet combination air cooler system respectively.
By above-mentioned known to description of the present utility model, compared to the prior art, the utility model has the advantage of: native system not only has the water saving feature of the pure Air-Cooling Island technology of thermal power plant, have more the energy-efficient of vaporation-type cooling technology, and native system also solves the problem of exhaust steam in steam turbine heat recovery, abundant integration various excavating resource UTILIZATION OF VESIDUAL HEAT IN potentiality, make it to reach the object reducing coal consumption, improve unit efficiency, save water consumption, the production application of the industry is had very important significance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
A kind of thermal power plant Direct Air-Cooled assists spike cooling system, comprise steam turbine 1, Air-Cooling Island 2, described steam turbine 1 is communicated with described Air-Cooling Island 2 by a female pipeline 3, also comprise a condenser 4 and branch pipe(tube) 5, one end of this branch pipe(tube) 5 is connected in parallel on described female pipeline 3, the other end is connected with described condenser 4, and the both sides of described condenser 4 have been arranged in parallel a set of heating system 6 and a set of dry wet combination air cooler system 7 respectively.Wherein, described condenser 3 is any one in the condensing equipment of absorption heat pump, plate evaporation air cooling tubes condenser, high back pressure heating system or other arbitrary forms, can select according to practical condition.
As shown in Figure 1, this dry wet combination air cooler system 7 is also connected with a set of little machine and subsidiary engine circulation 8, this little machine and subsidiary engine circulation 8 comprise that little machine subsidiary engine recirculated water supplies water 81, little machine subsidiary engine recirculated water returns 82 water, circulating pump 83 and cooling tower 84, this circulating pump 83 is arranged in described little machine subsidiary engine recirculated water water supply 81, and little machine subsidiary engine recirculated water water supply 81 and little machine subsidiary engine recirculated water backwater 82 are connected with described dry wet combination air cooler system 7 respectively.
With reference to Fig. 1, operation principle of the present utility model: before exhaust steam in steam turbine enters Air-Cooling Island, a road branch pipe(tube) is drawn from the female pipeline of exhaust steam, extract a certain amount of exhaust steam and enter condenser, the condensation side of condenser is arranged in parallel a set of heating system and a set of dry wet combination air cooler system, during winter, by the valve closing of condenser cold side, condenser is utilized to extract waste heat for heating system, summer is by the valve closing of condenser heating side, open dry wet combination air cooler system, cool as assisting spike summer, thus avoid the idle waste of condenser non-heating season.Simultaneously, dry wet combination air cooler system is incorporated to little machine and subsidiary engine circulating water cooling system simultaneously, when Heating Season, close cooling stack valve, recirculated water enters dry wet combination air cooler and carries out circulating cooling, both avoid the idle waste of dry wet combination air cooler, and the most important thing is also to have played the low cooling advantage of winter air temperature, reduce water consumption.
Above are only detailed description of the invention of the present utility model, but design concept of the present utility model be not only confined to this, everyly utilize this design to improve with carrying out unsubstantiality the utility model, all should belong to the behavior of infringement the utility model protection domain.
Claims (4)
1. thermal power plant's Direct Air-Cooled assists spike cooling system, comprise steam turbine, Air-Cooling Island, described steam turbine is communicated with described Air-Cooling Island by a female pipeline, it is characterized in that: also comprise a condenser and branch pipe(tube), one end of this branch pipe(tube) is connected in parallel on described female pipeline, the other end is connected with described condenser, and the both sides of described condenser have been arranged in parallel a set of heating system and a set of dry wet combination air cooler system respectively; Described dry wet combination air cooler system is also connected with a set of little machine and subsidiary engine circulation.
2. a kind of thermal power plant according to claim 1 Direct Air-Cooled assists spike cooling system, it is characterized in that: described condenser is any one in absorption heat pump, plate evaporation air cooling tubes condenser, high back pressure heating system.
3. a kind of thermal power plant according to claim 1 Direct Air-Cooled assists spike cooling system, it is characterized in that: described little machine and subsidiary engine circulation comprise that little machine subsidiary engine recirculated water supplies water, little machine subsidiary engine recirculated water backwater, circulating pump and cooling tower, this circulating pump is arranged on described little machine subsidiary engine recirculated water for waterborne.
4. a kind of thermal power plant according to claim 1 Direct Air-Cooled assists spike cooling system, it is characterized in that: described little machine subsidiary engine recirculated water water supply and little machine subsidiary engine recirculated water backwater are connected with described dry wet combination air cooler system respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716490.0U CN204255125U (en) | 2014-11-26 | 2014-11-26 | A kind of thermal power plant Direct Air-Cooled assists spike cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716490.0U CN204255125U (en) | 2014-11-26 | 2014-11-26 | A kind of thermal power plant Direct Air-Cooled assists spike cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204255125U true CN204255125U (en) | 2015-04-08 |
Family
ID=52959424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420716490.0U Expired - Fee Related CN204255125U (en) | 2014-11-26 | 2014-11-26 | A kind of thermal power plant Direct Air-Cooled assists spike cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204255125U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964577A (en) * | 2015-06-30 | 2015-10-07 | 国网山东省电力公司电力科学研究院 | Auxiliary cooling device applied in direct air cooling system and control method thereof |
| CN105545389A (en) * | 2016-01-14 | 2016-05-04 | 大唐(北京)能源管理有限公司 | Heat exchange system with double functions of heating and cooling, and heat exchange method with double functions of heating and cooling, for air-cooling power plant |
| CN107631343A (en) * | 2017-10-16 | 2018-01-26 | 山西三水能源股份有限公司 | A kind of ultralow temperature UTILIZATION OF VESIDUAL HEAT IN thermoelectricity cooperates with heat supply process |
| CN111121481A (en) * | 2019-12-18 | 2020-05-08 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Dry-wet combined cooling and steam exhaust direct heat supply efficient condenser system and use method thereof |
| CN111854462A (en) * | 2020-08-03 | 2020-10-30 | 西安热工研究院有限公司 | A cooling and antifreeze system suitable for all working conditions of indirect air-cooled heating units |
| CN113863999A (en) * | 2021-09-18 | 2021-12-31 | 西安热工研究院有限公司 | Cold source sharing system and method for dry-wet combined cooling and steam-electricity double-drive induced draft fan of direct air cooling unit |
| CN114776401A (en) * | 2022-05-23 | 2022-07-22 | 西安热工研究院有限公司 | Operation optimization method and system for dry-wet combined cold end |
-
2014
- 2014-11-26 CN CN201420716490.0U patent/CN204255125U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964577A (en) * | 2015-06-30 | 2015-10-07 | 国网山东省电力公司电力科学研究院 | Auxiliary cooling device applied in direct air cooling system and control method thereof |
| CN105545389A (en) * | 2016-01-14 | 2016-05-04 | 大唐(北京)能源管理有限公司 | Heat exchange system with double functions of heating and cooling, and heat exchange method with double functions of heating and cooling, for air-cooling power plant |
| CN107631343A (en) * | 2017-10-16 | 2018-01-26 | 山西三水能源股份有限公司 | A kind of ultralow temperature UTILIZATION OF VESIDUAL HEAT IN thermoelectricity cooperates with heat supply process |
| CN111121481A (en) * | 2019-12-18 | 2020-05-08 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Dry-wet combined cooling and steam exhaust direct heat supply efficient condenser system and use method thereof |
| CN111854462A (en) * | 2020-08-03 | 2020-10-30 | 西安热工研究院有限公司 | A cooling and antifreeze system suitable for all working conditions of indirect air-cooled heating units |
| CN113863999A (en) * | 2021-09-18 | 2021-12-31 | 西安热工研究院有限公司 | Cold source sharing system and method for dry-wet combined cooling and steam-electricity double-drive induced draft fan of direct air cooling unit |
| CN114776401A (en) * | 2022-05-23 | 2022-07-22 | 西安热工研究院有限公司 | Operation optimization method and system for dry-wet combined cold end |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204255125U (en) | A kind of thermal power plant Direct Air-Cooled assists spike cooling system | |
| CN206890633U (en) | A kind of recovery exhausted spare heat system in parallel based on absorption heat pump and high back pressure | |
| CN201568088U (en) | Absorption heat pump directly recovers steam turbine exhaust heat cogeneration system of power station | |
| CN206681805U (en) | A kind of high back pressure co-generation unit of the integrated injector that draws gas | |
| CN102278786B (en) | Central heating system using waste heat of direct air cooling power plant | |
| CN202768090U (en) | Recovery system of dead steam waste heat | |
| CN201560812U (en) | Cogeneration low temperature heat energy recovery device | |
| CN202182510U (en) | Central heating system utilizing waste heat of direct air cooling power plant | |
| CN106382667B (en) | power plant heat supply energy-saving system and method | |
| CN204987536U (en) | High temperature heating device based on lithium bromide absorption heat pump unit | |
| CN102052702B (en) | Heating method by using power plant steam turbine bearing cooling water through heat pump | |
| CN101694167A (en) | Steam exhausting cooling method and device of condensing steam turbine of auxiliary thermal power station | |
| CN202532586U (en) | System for improving waste heat efficiency of heat pump recovery plant cooling tower | |
| CN104807245B (en) | A kind of low temperature heat system and residual-heat utilization method | |
| CN202074601U (en) | Steam exhausting, waste heat recovering and heating system of direct air cooling unit | |
| CN104236161B (en) | A kind of waste heat recycling system | |
| CN202023600U (en) | CHP (combined heat and power) heat supply system for efficiently recovering exhaust steam waste heat of power station steam turbine | |
| CN103953961A (en) | High back pressure and heat pump combined heat supply system for air cooling unit | |
| CN108085908B (en) | Dyeing machine heat recovery device | |
| CN108194155B (en) | System for improving summer operation vacuum of heat supply unit | |
| CN105910455A (en) | Air cooling high back pressure heat supply system utilizing waste heat of auxiliary machine circulating water | |
| CN102182527A (en) | Heat power combined heat supply system for efficiently recycling residual heat exhausted by steam turbine in power station | |
| CN205748020U (en) | Utilize the air cooling high back pressure heating system of subsidiary engine circulating water afterheat | |
| CN205664467U (en) | Directly retrieve economizer that power plant's condenser waste heat is used for municipal heat supply | |
| CN104154771A (en) | Device for reducing back pressure in summer and recovering exhaust steam heat in winter |
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 |
Granted publication date: 20150408 Termination date: 20201126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |