CN104018899B - A kind of air-cooled condenser of power plant peak cooling device and method thereof - Google Patents
A kind of air-cooled condenser of power plant peak cooling device and method thereof Download PDFInfo
- Publication number
- CN104018899B CN104018899B CN201410205896.7A CN201410205896A CN104018899B CN 104018899 B CN104018899 B CN 104018899B CN 201410205896 A CN201410205896 A CN 201410205896A CN 104018899 B CN104018899 B CN 104018899B
- Authority
- CN
- China
- Prior art keywords
- heat pump
- absorption heat
- water
- absorption
- steam
- 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.)
- Active
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 230000001172 regenerating effect Effects 0.000 claims abstract description 13
- 238000009833 condensation Methods 0.000 claims abstract description 5
- 230000005494 condensation Effects 0.000 claims abstract description 5
- 230000015271 coagulation Effects 0.000 claims abstract description 4
- 238000005345 coagulation Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000009998 heat setting Methods 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 1
- 238000005086 pumping Methods 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
Abstract
The invention discloses a kind of air-cooled condenser of power plant spike cooling system and cooling means thereof, it installs absorption type heat pumping unit and subsidiary pipeline, valve in the former therrmodynamic system of Power Plant additional, the method is as follows: extracted steam from turbine is after the first regulation valve enters absorption heat pump, condense into water in the internal heat release of absorption heat pump, cause in condensation water side ducts according to water temperature size；Exhaust steam in steam turbine, after the second regulation valve enters absorption heat pump, condenses into water in the internal heat release of absorption heat pump, is directly entered condensate tank in Steam Turbine heat regenerative system；In Steam Turbine heat regenerative system condensate tank, partial coagulation water enters absorption heat pump through the 3rd regulation valve, inside absorption heat pump after heat absorption, causes the condensing water conduit of Steam Turbine heat regenerative system.Use the present invention to alleviate summer air cooling tubes condenser area of dissipation not enough, it is possible to be effectively improved unit vacuum, solve air cooling tubes condenser in summer and exert oneself limited problem, there is higher energy-saving benefit.
Description
Technical field
The method that the present invention relates to the cooling of a kind of air cooling tubes condenser spike in summer, it is adaptable to Air-cooled Unit economical operation in summer.
Background technology
The rich coal water-deficient area power plant many employings air cooling tubes condenser in the north, utilizes air directly to cool down turbine discharge.In view of factors such as investment, preventing freeze in winter, how air cooling tubes condenser, when design, typically according to maximum temperature design in summer, and will not design according to year-round average temperature.And northern area, winter, summer temp difference greatly, this resulted in unit when summer operation often vacuum relatively low, cause unit heat economy poor, even need time serious to be force-landed operation of exerting oneself, and affects unit generation amount.
Solve this problem the most at present and mainly have 2 kinds of methods, one is to increase air cooler, air cooling tubes condenser part exhaust steam is directed directly to after forced-draft air cooler condenses, be recycled to former air cooling tubes condenser sump, its essence is the area of dissipation design load adding air cooling tubes condenser；Two is the spray reinforcing heat-exchanger rig being made up of some shower nozzles in air cooling blower fan outlet installing, the band setting-out of shower nozzle ejection mixes with fan outlet air contact, owing to water evaporation process can absorb the biggest gasification latent heat, therefore can effectively be lowered into the air themperature of radiator, thus improve vacuum.But the clean level on air cooling tubes condenser surface is required higher by this technology, and only surface is fully rinsed well and be can be only achieved Expected Results.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of simple in construction, easy to use, unit can be prevented effectively from exert oneself the air cooling tubes condenser peak cooling device in summer and method thereof run because of reduction that low vacuum causes.
For solving above-mentioned technical problem, the present invention adopts the technical scheme that: a kind of air-cooled condenser of power plant spike cooling system, it includes the steam turbine in power plant's original system, condensate tank, condensate pump, air cooling tubes condenser and heater, it is characterized in that: also include the absorption heat pump installed additional, described extracted steam from turbine is connected to steam turbine absorption heat pump by the pipeline with the first regulation valve, it is condensed into after water and enters heater；The pipeline that described exhaust steam in steam turbine band second regulates valve is connected to absorption heat pump, after being condensed into water, described absorption heat pump connects with causing condensate tank via exhaust steam pipeline, described condensation water connects with absorption heat pump from the condensate pipe pipeline of condensate tank band the 3rd regulation valve, and after intensification, described condensate pump extracts the water in condensate tank and is connected to heater.
Absorption heat pump in this cooling means is connected by steam-water pipe with turbine body and heat regenerative system thereof, utilizes absorption heat pump to extract part air cooling tubes condenser exhaust steam residual heat for heat-setting water, and it specifically includes following steps:
1) extracted steam from turbine enters after absorption heat pump through the first regulation valve, condenses into water in the internal heat release of absorption heat pump, according to water temperature size cause on Steam Turbine heat regenerative system condensing water conduit closest to position；
2) exhaust steam in steam turbine is after the second regulation valve enters absorption heat pump, condenses into water in the internal heat release of absorption heat pump, is directly entered condensate tank in Steam Turbine heat regenerative system and reclaims；
3) in Steam Turbine heat regenerative system condensate tank, partial coagulation water enters absorption heat pump through the 3rd regulation valve, inside absorption heat pump after heat absorption, causes the corresponding condensing water conduit of Steam Turbine heat regenerative system.
The present invention utilizes absorption heat pump technology, the exhaust steam being partially into air cooling tubes condenser is branched in heat pump, its heat is transferred to unit and condenses in water, to reduce the cooling load of air cooling tubes condenser in summer, thus energy-efficient solve the low vacuum that air cooling tubes condenser causes summer because of cooling capacity deficiency, even affect the practical problem of unit output.
The principle of the present invention is as follows:
The present invention uses absorption heat pump, utilizes Air-cooled Unit section to draw gas as heat pump and drives steam, extracts air cooling tubes condenser exhaust steam residual heat and extremely condense in water, and it is three closed cycle loops:
Low temperature exhaust heat loop
Air cooling tubes condenser part exhaust steam causes absorption heat pump, enters air cooling tubes condenser condensate tank (or being sump), form closed cycle loop in absorption heat pump vaporizer after heat release.
Power loop
Power loop refers to drive steam pipework and solidifying water backheat Force system pipeline.Drive steam to take from Steam Turbine low pressure (LP) cylinder section to draw gas, after its attemperator desuperheat, enter the heat pump generator of absorption heat pump, release heat and condense into water.The temperature reclaimed according to the design of its solidifying water, enters Air-cooled Unit condensate line correct position, forms closed circuit.
High-temperature water loop
The partial coagulation water distributed in former air cooling tubes condenser condensate tank, after the heat pump absorber and condenser apparatus heating of absorption heat pump, designs heating-up temperature according to it, enters Air-cooled Unit condensate line correct position, form loop.
Use and have the beneficial effects that produced by technique scheme:
Invention increases absorption heat pump and some regulation valve and pipeline, after using the present invention, part air cooling tubes condenser exhaust steam can be shunted in summer to cool down to absorption heat pump, significantly alleviate air cooling tubes condenser area of dissipation deficiency in summer, unit vacuum can be effectively improved, solve air cooling tubes condenser in summer to exert oneself limited problem, there is higher energy-saving benefit；And the air cooling tubes condenser exhaust steam residual heat of branched to absorption heat pump, all recycle in thermodynamic system of steam tur, the secondary achieving " used heat " utilizes, thus effectively reduces the thermal pollution that surrounding enviroment are caused by air cooling tubes condenser exhaust steam heat radiation, has significant social enviroment protection benefit.
Accompanying drawing explanation
The schematic diagram of Fig. 1 present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further detailed.
See accompanying drawing 1,
The present embodiment has installed absorption type heat pumping unit and subsidiary pipeline, valve etc. in the former therrmodynamic system of Power Plant additional, and described extracted steam from turbine enters heater after being connected with steam turbine absorption heat pump by the pipeline with the first regulation valve, be condensed into water；The pipeline that described exhaust steam in steam turbine band second regulates valve is connected to absorption heat pump, after being condensed into water, described absorption heat pump causes condensate tank connection via exhaust steam pipeline, described condensation water connects with absorption heat pump from the condensate pipe pipeline of condensate tank band the 3rd regulation valve, and after intensification, described condensate pump extracts the water in condensate tank and is connected to heater.Selection absorption heat pump principle: unit operation parameter under comprehensive statistics extreme weather in summer in recent years, determines that air cooling tubes condenser exhaust steam temperature/bypass flow, condensate tank water temperature/bypass flow, heat pump drive steam pressure etc., selects the boundary parameter of Heat Pump Design.
The present invention draws steam from low pressure (LP) cylinder regenerative steam mouth position, absorption heat pump (this steam is as the driving heat source of absorption heat pump) is entered through the first regulation valve, it is recovered from the part exhaust steam in steam turbine heat that the second regulation valve is drawn, the heater portion segregation junction water drawn for heating through the 3rd regulation valve；Absorption heat pump has reclaimed part exhaust steam in steam turbine heat, decrease the exhaust steam heat entering former air cooling tubes condenser to a certain extent, reduce the cooling load of air cooling tubes condenser in summer, thus energy-efficient solve the low vacuum that air cooling tubes condenser causes summer because of cooling capacity deficiency, even affect the practical problem of unit output.
Under summer extreme weather, absorption heat pump puts into operation.Owing to part exhaust steam is no longer pass through air cooling tubes condenser heat radiation, thus effectively reduce the cooling load of air cooling tubes condenser, enable unit vacuum to keep higher level.It is highly suitable for Air-cooled Unit economical operation in summer, it is possible to be prevented effectively from unit and exert oneself operation because of reduction that low vacuum causes.
If additionally switching to hot net water by condensation water heating circuit condenses water, then can increase external heating load winter, increase substantially the utilization rate of increased newly heat-pump apparatus, reduce the investment payback time.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.Multiple amendment to these embodiments will be apparent from for those skilled in the art, and generic principles defined herein can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (2)
1. an air-cooled condenser of power plant spike cooling system, it includes steam turbine, condensate tank, condensate pump, air cooling tubes condenser and heater, it is characterized in that: also include that absorption heat pump, the pipeline that extracted steam from turbine band first regulates valve are connected to absorption heat pump；The pipeline that exhaust steam in steam turbine band second regulates valve is connected to absorption heat pump, and condensation water connects with absorption heat pump from the pipeline of condensate tank band the 3rd regulation valve, heating up is followed by heater.
2. the cooling means of the air-cooled condenser of power plant spike cooling system described in claim 1, it is characterized in that: the described absorption heat pump installed additional is connected by pipeline with turbine body and heat regenerative system thereof, then utilizing absorption heat pump extraction part air cooling tubes condenser exhaust steam residual heat for heat-setting water, the method is specific as follows:
1) extracted steam from turbine enters after absorption heat pump through the first regulation valve, condenses into water in the internal heat release of absorption heat pump, according to water temperature size cause unit heat device condense in water side ducts closest to position；
2) exhaust steam in steam turbine is after the second regulation valve enters absorption heat pump, condenses into water in the internal heat release of absorption heat pump, is directly entered condensate tank in Steam Turbine heat regenerative system and reclaims；
3) in Steam Turbine heat regenerative system condensate tank, partial coagulation water enters absorption heat pump through the 3rd regulation valve, inside absorption heat pump after heat absorption, causes the corresponding condensing water conduit of Steam Turbine heat regenerative system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410205896.7A CN104018899B (en) | 2014-05-16 | 2014-05-16 | A kind of air-cooled condenser of power plant peak cooling device and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410205896.7A CN104018899B (en) | 2014-05-16 | 2014-05-16 | A kind of air-cooled condenser of power plant peak cooling device and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104018899A CN104018899A (en) | 2014-09-03 |
| CN104018899B true CN104018899B (en) | 2016-08-24 |
Family
ID=51435856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410205896.7A Active CN104018899B (en) | 2014-05-16 | 2014-05-16 | A kind of air-cooled condenser of power plant peak cooling device and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104018899B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822363B (en) * | 2016-05-06 | 2018-02-06 | 神华集团有限责任公司 | Air cooling system and the control method for air cooling system |
| CN106196700A (en) * | 2016-08-10 | 2016-12-07 | 国网河北省电力公司电力科学研究院 | A kind of absorption heat pump drives steam front-end system |
| CN112081633B (en) * | 2020-09-29 | 2024-03-29 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | Device for realizing back pressure reduction and waste heat utilization of direct air cooling unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB882211A (en) * | 1958-05-27 | 1961-11-15 | Netzschkau Maschf Nema | Low temperature cold-treatment plant |
| FR1561249A (en) * | 1968-01-12 | 1969-03-28 | ||
| US3621656A (en) * | 1968-01-10 | 1971-11-23 | Babcock Atlantique Sa | Generation of energy in a gas cycle |
| CN201568088U (en) * | 2009-12-21 | 2010-09-01 | 江苏双良空调设备股份有限公司 | Cogeneration system for directly recycling waste heat of exhaust steam from power station steam turbine with absorption type heat pump |
| CN103090357A (en) * | 2011-10-31 | 2013-05-08 | 杭州三花研究院有限公司 | System utilizing absorption heat pump to recover exhaust steam waste heat of power station and heat boiler supply water |
-
2014
- 2014-05-16 CN CN201410205896.7A patent/CN104018899B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB882211A (en) * | 1958-05-27 | 1961-11-15 | Netzschkau Maschf Nema | Low temperature cold-treatment plant |
| US3621656A (en) * | 1968-01-10 | 1971-11-23 | Babcock Atlantique Sa | Generation of energy in a gas cycle |
| FR1561249A (en) * | 1968-01-12 | 1969-03-28 | ||
| CN201568088U (en) * | 2009-12-21 | 2010-09-01 | 江苏双良空调设备股份有限公司 | Cogeneration system for directly recycling waste heat of exhaust steam from power station steam turbine with absorption type heat pump |
| CN103090357A (en) * | 2011-10-31 | 2013-05-08 | 杭州三花研究院有限公司 | System utilizing absorption heat pump to recover exhaust steam waste heat of power station and heat boiler supply water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104018899A (en) | 2014-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104481611A (en) | Dead steam waste heat recovery system based on large temperature difference heat exchange technology | |
| CN205957280U (en) | Absorption heat pump heating steam extracting and heat supplying system | |
| CN206397550U (en) | Low pressure cylinder cooling system after steam turbine optical axis heat supply transformation | |
| CN106091074A (en) | A kind of absorption heat pump heating extraction for heat supply system | |
| CN208793048U (en) | A kind of efficient power station heating system of the absorption heat pump of integrated steam condenser | |
| CN104501275A (en) | Stepped heating and supplying system sufficiently utilizing waste heat of power plant | |
| CN104018899B (en) | A kind of air-cooled condenser of power plant peak cooling device and method thereof | |
| CN104807245B (en) | A kind of low temperature heat system and residual-heat utilization method | |
| KR101499810B1 (en) | Hybrid type condenser system | |
| CN104406143A (en) | Vacuum compression high-temperature boiler and steam warming method | |
| CN204693371U (en) | One directly reclaims turbine discharge waste heat and heat-setting water system | |
| CN206786696U (en) | Thermal power plant Slag Cooler for Circulation Fluidized Bed Boiler cooling water system | |
| CN205748028U (en) | The condenser multistage steam injection vacuum system that a kind of heat integration recycles | |
| CN204691833U (en) | A kind of circulating water afterheat utilized device | |
| CN204665244U (en) | A kind of association system of phase-change heat-exchanger band heat exchangers for district heating | |
| CN204373030U (en) | Make full use of the step heating heating system of residual heat of electric power plant | |
| CN104154771B (en) | Reduce back pressure a kind of summer and reclaim the device of exhaust steam residual heat winter | |
| CN207674551U (en) | A kind of cooling tower antifreezing system for the solidifying pumping back of the body heat supply of steam turbine | |
| CN102997311B (en) | Power plant condensing heat recovery heat supply system | |
| CN206801628U (en) | Condensing turbine low pressure (LP) cylinder cools down and small turbine exhaust steam heat recovery system | |
| CN103032913B (en) | Power plant condensation heat recovery heat supply system taking circular cooling water as heat supply network water | |
| CN205878683U (en) | high back pressure , heat pump set's heating system who jointly uses | |
| CN205858429U (en) | Steam-turbine residual neat recovering system | |
| CN104832908A (en) | Combination system and combination method for phase-change heat exchanger with heating network heater | |
| CN109695483A (en) | Direct Air-cooled Unit feed pump turbine cold end system based on absorption heat pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |