CN205243568U - Adopt natural draft cooling tower's direct air cooling power generation system - Google Patents
Adopt natural draft cooling tower's direct air cooling power generation system Download PDFInfo
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- CN205243568U CN205243568U CN201521137574.XU CN201521137574U CN205243568U CN 205243568 U CN205243568 U CN 205243568U CN 201521137574 U CN201521137574 U CN 201521137574U CN 205243568 U CN205243568 U CN 205243568U
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- tube bundle
- exchanging tube
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- 238000001816 cooling Methods 0.000 title claims abstract description 79
- 238000010248 power generation Methods 0.000 title abstract 3
- 230000005611 electricity Effects 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 230000008676 import Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 238000009423 ventilation Methods 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 206010009866 Cold sweat Diseases 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses an adopt natural draft cooling tower's direct air cooling power generation system, this system include natural draft cooling tower, a plurality of air intakes have evenly been seted up along circumference in natural draft cooling tower's bottom, natural draft cooling tower's top is equipped with the air outlet, the import of air cooling condenser is passed through steam exhausting pipeline and is connected with turbo generator set, the export and the water tank that condenses of air cooling condenser are connected, the air cooling condenser includes the heat exchanger tube bundles who comprises a plurality of heat exchange tubes, heat exchanger tube bundles sets up the inboard or the outside of air intake. The utility model discloses can reduce direct air cooling power generation system's power consumption, the minimize natural wind is to air cooling system and generator operation's influence, and is significant to improving the operational economy of power plant, stability and reliability.
Description
Technical field
The utility model is specifically related to a kind of Direct Air-Cooled electricity generation system that adopts cooling stack.
Background technology
Generally speaking, the construction in thermal power plant must possess fuel and the large condition of water two. In northwest, the North China of ChinaRich coal resources, but water resource is poor, and water source becomes " bottleneck " problem of thermal power plant, this area development. Air cooling skillThe cooling medium of art is air, and with the Air-cooled Unit of capacity, compared with clammy unit, its sharpest edges are significantly to economize on water,So air cooling technique electricity generation system has very large advantage in water-deficient area.
Air cooling generating is divided into again Direct Air-Cooled generating and indirect air cooling generating. It is simple that direct air cooling system has system, heat exchange effectThe advantages such as fruit is good, but general direct air cooling system adopts blower fan forced ventilation cooling, and not only fan noise is large, blower fan consumptionStation service, and the layout of mechanical draft direct air cooling system restricts by summer cardinal wind, and to strong wind and hot air reflux ratioMore responsive, affect stable, the safe operation of steam turbine generator.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of Direct Air-Cooled generating system that adopts cooling stackSystem, it reduces Direct Air-Cooled electricity generation system power consumption by cooling stack is set reduces natural wind to air cooling as far as possibleThe impact of system and generating set operation, significant to improving power plant's performance driving economy, stability and reliability.
The technical solution adopted in the utility model is:
A Direct Air-Cooled electricity generation system that adopts cooling stack, this system comprises boiler, Turbo-generator Set, skyCold condenser, condensate tank, condensate pump, low-pressure heater, oxygen-eliminating device, feed pump, high-pressure heater and relevantConnecting line, this system also comprises cooling stack, the bottom of described cooling stack is along circumferentially evenly offeringMultiple air inlets, the top of described cooling stack is provided with air outlet, and gland steam exhauster is passed through in the import of described air cooling tubes condenserRoad is connected with Turbo-generator Set, and the outlet of described air cooling tubes condenser is connected with condensate tank, described air cooling tubes condenser comprise byThe heat-exchanging tube bundle that multiple heat exchanger tubes form, described heat-exchanging tube bundle is arranged on inner side or the outside of described air inlet.
By technique scheme, the ratio of height to diameter of described cooling stack is 1.5～3.
By technique scheme, the inner surface of described heat exchanger tube offers screw thread or groove, and the arranged outside of described heat exchanger tube has wingSheet.
By technique scheme, in the time that heat-exchanging tube bundle is arranged on the inner side of described air inlet, described heat-exchanging tube bundle is parallel to natureThe bus annular of aerating and cooling tower arranges.
By technique scheme, in the time that heat-exchanging tube bundle is arranged on the inner side of described air inlet, described heat-exchanging tube bundle is parallel to natureThe radial level setting of aerating and cooling tower.
By technique scheme, in the time that heat-exchanging tube bundle is arranged on the inner side of described air inlet, described heat-exchanging tube bundle favours natureThe radially setting of aerating and cooling tower.
By technique scheme, in the time that heat-exchanging tube bundle is arranged on the outside of described air inlet, described heat-exchanging tube bundle is parallel to natureThe bus annular of aerating and cooling tower arranges.
By technique scheme, the periphery that described cooling stack is positioned at air inlet is provided with many group shutters, every group hundredLeaf window comprises multiple horizontally disposed blinds.
By technique scheme, described feed pump is electrically driven feed pump.
The utlity model has following beneficial effect: this system adopts cooling stack, direct by the natural wind in towerCooling turbine discharge, owing to not needing to arrange cooling fan, has reduced fan power consumption, and then has reduced auxiliary power consumption, carriesThe high economy of generating set, has also reduced the noise being produced by fan operation simultaneously; Meanwhile, adopt gravity-flow ventilation coolingTower, can also reduce direct air cooling system and arrange the restriction that is subject to cardinal wind in summer, has also reduced strong wind, hot air reflux etc. rightThe impact of Turbo-generator Set operation, has improved stability and the reliability of power plant's operation.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of heat exchanger tube in the utility model embodiment;
Fig. 3 is the structural representation of shutter in the utility model embodiment.
In figure: 1-boiler; 2-Turbo-generator Set; 3-cooling stack; 4-air cooling tubes condenser; 401-heat exchanger tube,402-groove, 5-condensate tank; 6-condensate pump; 7-low-pressure heater; 8-oxygen-eliminating device; 9-feed pump; 10-high-pressure heater;11-blow-off line, 12-blinds.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples,The utility model is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain this realityWith novel, and be not used in restriction the utility model.
In preferred embodiment of the present utility model, as shown in Figure 1 and Figure 2, a kind of adopt cooling stack directlyAir cooling electricity generation system, this system comprises boiler 1, Turbo-generator Set 2, air cooling tubes condenser 4, condensate tank 5, condensate waterPump 6, low-pressure heater 7, oxygen-eliminating device 8, feed pump 9, high-pressure heater 10 and relevant connection pipeline, this system alsoComprise cooling stack 3, the bottom of cooling stack 3 is along circumferentially evenly offering multiple air inlets, naturally logicalThe top of Cooling Tower 3 is provided with air outlet, and the import of air cooling tubes condenser 4 connects by blow-off line 11 and Turbo-generator Set 2Connect, the outlet of air cooling tubes condenser 4 is connected with condensate tank 5, and air cooling tubes condenser 4 comprises and being made up of multiple heat exchanger tubes 401Heat-exchanging tube bundle, heat-exchanging tube bundle is arranged on inner side or the outside of air inlet.
In preferred embodiment of the present utility model, cooling stack is designed to tall and thin type, the height of cooling stackFootpath ratio is 1.5～3, can further reduce the impact on Turbo-generator Set operation such as strong wind, hot air reflux.
In preferred embodiment of the present utility model, as shown in Figure 2, the inner surface of heat exchanger tube offers screw thread or groove, described inThe arranged outside of heat exchanger tube has fin, and the inner surface of heat exchanger tube 401 offers screw thread or groove 402, the outside of heat exchanger tube 401Be provided with fin, wherein, the inner surface of heat exchanger tube offers groove 402 vertically. Heat exchanger tube inner surface in air cooling tubes condenserOffer screw thread or groove, can alleviate the film condensation of steam, increase the coefficient of heat transfer and reduce heat exchange area, also can enter oneStep reduces cooling tower floor space, and heat exchange pipe external surface arranges fin, can expand heat exchange surface, increases the coefficient of heat transfer.
In preferred embodiment of the present utility model, in the time that heat-exchanging tube bundle is arranged on the inner side of described air inlet, heat-exchanging tube bundle is flatRow arranges in the bus annular of cooling stack, also can be parallel to the radial level setting of cooling stack, alsoCan favour the radially setting of cooling stack, or the combination of above three kinds of modes; When heat-exchanging tube bundle is arranged on, the bus annular that heat-exchanging tube bundle is parallel to cooling stack arranges when in the outside of described air inlet.
The blinds of the outer shutter of cooling stack is all vertically arranged at present, and in the time closing certain a slice shutter, a part is changedThe airspace of heat pipe is fully closed, and causes this part heat-exchanging component just need to be isolated and out of service, affects heat exchange groupThe operating efficiency of part. For this problem, in preferred embodiment of the present utility model, as shown in Figure 3, gravity-flow ventilation is coldBut the periphery that tower is positioned at air inlet is provided with many group shutters, and every group of shutter comprises multiple horizontally disposed blinds 12. WhenWhen closed portion shutter, can not cover whole airspaces of arbitrary heat-exchanging component, be arranged in differing heights by closingSeveral groups of horizontal louvres, can make unit prevent that at underload or severe cold weather condenser from freezing, and regulate more flexible.
In preferred embodiment of the present utility model, feed pump is electrically driven feed pump, to simplify the system configuration of feed pump.
The utility model is in the time of concrete application, and cooling stack is in tower, to produce the each of gravity-flow ventilation with himself structurePlant the aeration tower in profile and cross section, air cooling tubes condenser is for flowing and take away steam heat at heat exchange tube of condenser outer surface with natural windCondenser, boiler is the boiler that produces steam with the heat heated feed water of solid, gas, liquid fuel, or utilizesWaste-heat is to the boiler of water generates steam.
Workflow of the present utility model is: the steam being provided by boiler is delivered to Turbo-generator Set generating, Turbo-generator SetSteam discharge caused in air cooling tubes condenser by blow-off line, the natural wind flowing to from cooling stack bottom, flows through air cooling solidifyingThe outer surface of vapour device, take away the heat of steam and make vapor (steam) temperature reduce condensation, the hot-air after heat exchange is arranged from top outlet inletGo out,, in condensate tank, boost by condensate pump through the vapor collection of condensation, the condensate water low pressure at different levels of flowing through successively addsHot device and being heated by steam, finally flows in oxygen-eliminating device and completes deoxygenation, and the feedwater of flowing out from oxygen-eliminating device is boosted through feed pump, complies withInferiorly flow through high-pressure heaters at different levels, finally feed boiler, continue to become the steam that quality is qualified after heating, send out for steam turbineElectricity.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, andAll these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (9)
1. a Direct Air-Cooled electricity generation system that adopts cooling stack, this system comprises boiler, Turbo-generator Set, air coolingCondenser, condensate tank, condensate pump, low-pressure heater, oxygen-eliminating device, feed pump, high-pressure heater and relevantConnecting line, is characterized in that, this system also comprises cooling stack, the edge, bottom of described cooling stackCircumferentially evenly offer multiple air inlets, the top of described cooling stack is provided with air outlet, described air cooling tubes condenserImport be connected with Turbo-generator Set by blow-off line, the outlet of described air cooling tubes condenser is connected with condensate tank, instituteState air cooling tubes condenser and comprise the heat-exchanging tube bundle being formed by multiple heat exchanger tubes, described heat-exchanging tube bundle be arranged on described air inlet inSide or outside.
2. system according to claim 1, is characterized in that, the ratio of height to diameter of described cooling stack is 1.5～3.
3. system according to claim 1, is characterized in that, the inner surface of described heat exchanger tube offers screw thread or groove, described inThe arranged outside of heat exchanger tube has fin.
4. system according to claim 1, is characterized in that, in the time that heat-exchanging tube bundle is arranged on the inner side of described air inlet, and instituteState the bus annular setting that heat-exchanging tube bundle is parallel to cooling stack.
5. system according to claim 1, is characterized in that, in the time that heat-exchanging tube bundle is arranged on the inner side of described air inlet, and instituteState the radial level setting that heat-exchanging tube bundle is parallel to cooling stack.
6. system according to claim 1, is characterized in that, in the time that heat-exchanging tube bundle is arranged on the inner side of described air inlet, and instituteState the radially setting that heat-exchanging tube bundle favours cooling stack.
7. system claimed in claim 1, is characterized in that, in the time that heat-exchanging tube bundle is arranged on the outside of described air inlet, described in changeThe bus annular that heat pipe bundle is parallel to cooling stack arranges.
8. system according to claim 1, is characterized in that, described cooling stack is positioned at the periphery setting of air inletHave many group shutters, every group of shutter comprises multiple horizontally disposed blinds.
9. system according to claim 1, is characterized in that, described feed pump is electrically driven feed pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521137574.XU CN205243568U (en) | 2015-12-31 | 2015-12-31 | Adopt natural draft cooling tower's direct air cooling power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521137574.XU CN205243568U (en) | 2015-12-31 | 2015-12-31 | Adopt natural draft cooling tower's direct air cooling power generation system |
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| Publication Number | Publication Date |
|---|---|
| CN205243568U true CN205243568U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521137574.XU Expired - Fee Related CN205243568U (en) | 2015-12-31 | 2015-12-31 | Adopt natural draft cooling tower's direct air cooling power generation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464725A (en) * | 2015-12-31 | 2016-04-06 | 武汉凯迪电力工程有限公司 | Direct-air-cooling power generation system with natural ventilation cooling tower |
| CN106870044A (en) * | 2017-03-20 | 2017-06-20 | 吴联凯 | A kind of electricity generation system for recycling industrial waste heat |
-
2015
- 2015-12-31 CN CN201521137574.XU patent/CN205243568U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464725A (en) * | 2015-12-31 | 2016-04-06 | 武汉凯迪电力工程有限公司 | Direct-air-cooling power generation system with natural ventilation cooling tower |
| CN106870044A (en) * | 2017-03-20 | 2017-06-20 | 吴联凯 | A kind of electricity generation system for recycling industrial waste heat |
| CN106870044B (en) * | 2017-03-20 | 2017-12-08 | 吴联凯 | A kind of electricity generation system for recycling industrial waste heat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200910 Address after: 430223 Room 309, floor 3, Kaidi building, No.1, Jiangxia Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: Wuhan Fengying Energy Technology Engineering Co.,Ltd. Address before: 613, room 430223, Katie building, Jiangxia Road, Miao Shan Development Zone, Jiangxia District, Hubei, Wuhan Patentee before: WUHAN KAIDI ELECTRIC POWER ENGINEERING Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 |
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| CF01 | Termination of patent right due to non-payment of annual fee |