CN202709779U - Movable wind shielding device of direct air-cooling system of power station - Google Patents
Movable wind shielding device of direct air-cooling system of power station Download PDFInfo
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- CN202709779U CN202709779U CN 201220358925 CN201220358925U CN202709779U CN 202709779 U CN202709779 U CN 202709779U CN 201220358925 CN201220358925 CN 201220358925 CN 201220358925 U CN201220358925 U CN 201220358925U CN 202709779 U CN202709779 U CN 202709779U
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- cooling system
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- power station
- direct air
- wind shielding
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Abstract
The utility model discloses a movable wind shielding device of a direct air-cooling system of a power station. The movable wind shielding device comprises a movable wind shielding wall and a positioning mechanism, wherein the movable wind shielding wall is arranged on the circumferential edges of a platform of the direct air-cooling system of the power station; the positioning mechanism is used for keeping an inclined angle between the movable wind shielding wall and the platform unchanged; the positioning mechanism comprises first positioning rods, second positioning rods, positioning nuts and positioning pins, wherein the first ends of the first positioning rods are articulated with the movable wind shielding wall, and the positioning pins are arranged on the second ends of the first positioning rods; the platform is fixedly arranged on the top ends of upright columns of the direct air-cooling system of the power supply, and one ends of the second positioning rods are articulated with the upright columns; and the second positioning rods are provided with guide grooves along the length direction. The movable wind shielding device has the capabilities of adjusting the wind shielding wall according to the wind direction and wind speed, effectively improving the wind speed at the inlet of a heat radiator and preventing a hot air backflow phenomenon from happening, thereby ensuring that an air-cooled condenser of the direct air-cooling system of the power station achieves an optimal heat exchanging effect.
Description
Technical field
The utility model relates to the power station air cooling device, particularly the movable abat-vent of a kind of power station direct air-cooling system.
Background technology
The direct air cooling system in power station is called for short direct air cooling system, is directly to adopt surrounding air to cool off turbine discharge, and its heat-exchanger rig is the fin tube type air cooling tubes condenser.Direct Air-cooled Unit with compare with the capacity water chiller, Air-cooled Unit cooling system itself can be economized on water more than 97%, whole plant economizes on water about 65%.So Air-cooled Unit is the optimal selection that the thermal power plant is built in " rich coal lack of water " area or arid area.
The direct air cooling system in power station comprises platform, column, air cooling tubes condenser and blower fan, and platform is fixedly mounted on the top of column, and air cooling tubes condenser is installed on the platform, and blower fan is positioned at the platform below.Air cooling tubes condenser is made of " A " roof type finned tube row, and tube bank is supported (frame type A) by triangular structure from the top to the bottom.The axial flow blower of platform arranged beneath forces cooling-air to flow through fin, thereby turbine discharge is cooled off.The peripheral border of air cooler tube bundle is surrounded by windbreak, and peripheral brattice plate surrounds whole air cooler island, so that hot air outlet and cool air inlet are separated, stops the hot-air of discharging to be sucked by short circuit.The position relationship of boiler room 300, steam turbine building 400 and Air-Cooling Island 500 usually as shown in Figure 1.
The cooling medium that Direct Air-Cooled adopts is surrounding air, and therefore, during the Direct Air-cooled Unit operation, back pressure can be subject to the impact of environmental factor and change, such as wind-warm syndrome, wind direction and wind speed etc.Wherein unfavorable wind direction (the wind comes from behind the Boiler Furnace) and unfavorable wind speed (strong wind) are very large on the back pressure impact.This be because the speed of beam wind increases and stove after can in Air-Cooling Island, produce the hot air reflux phenomenon when the wind comes from, and the radiator inlet velocity is descended, participate in the air capacity minimizing of heat exchange.
Usually adopt at present and reduce unfavorable wind speed and direction to the impact of Direct Air-Cooled unit at Air-Cooling Island arranged around windbreak.Because the position of windbreak is all fixed, namely in case after having installed, just can not change again the position.During unit operation, wind speed and direction is always changing, but this variation is to have periodically, power plant is positioned at Liangcheng County, the Inner Mongol such as the Daihai Lake, inner Mongolia sea, scrape northerly (northwester, north wind, northeaster) local winter more, take northwester as main, blow southerly (southeaster, south wind, southwester) summer, take southeaster as main more.Better to the windproof effect of a certain wind direction or wind speed when fixing windbreak moves, but when wind direction and wind speed change, the windproof effect possibility will variation.
The utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of movable abat-vent of power station direct air-cooling system that can regulate windbreak according to wind direction and wind speed, effectively weaken unfavorable wind speed and direction to the impact of air cooling tubes condenser heat exchange, so that the air cooling tubes condenser of power station direct air-cooling system reaches best heat transfer effect.
The technical solution of the utility model is achieved in that the movable abat-vent of power station direct air-cooling system, comprises movable windbreak, and described movable windbreak is hingedly mounted on the edge of platform of power station direct air-cooling system; Also comprise be used to the changeless detent mechanism of angle that keeps between described movable windbreak and the described platform, described detent mechanism comprises the first backstay, the second backstay, setscrew nut and alignment pin, the first end of described the first backstay and described movable windbreak are hinged, and described alignment pin is installed on the second end of described the first backstay; Described platform is fixedly mounted on the top of the column of power station direct air-cooling system, and an end and the described column of described the second backstay are hinged; Be provided with along its length gathering sill on described the second backstay, described alignment pin passes described gathering sill away from an end of described the first backstay and is threaded with described setscrew nut.
The movable abat-vent of above-mentioned power station direct air-cooling system, the angle between described movable windbreak and the described platform are 0～90 degree.
The beneficial effects of the utility model are: the utility model adopts movable abat-vent, regulates according to the situation of specific environment wind direction and wind speed, to reach the best heat transfer effect of air cooling tubes condenser.
Description of drawings
Fig. 1 is boiler room, steam turbine building and the Air-Cooling Island three location diagram in thermal power plant in the prior art;
Fig. 2 is the structural representation of the movable abat-vent of the utility model power station direct air-cooling system;
Fig. 3 is the structural representation of the first backstay of the detent mechanism of the movable abat-vent of the utility model power station direct air-cooling system;
Fig. 4 is the cross-sectional view of the first backstay of the detent mechanism of the movable abat-vent of the utility model power station direct air-cooling system shown in Figure 3;
Fig. 5 is the structural representation of the second backstay of the detent mechanism of the movable abat-vent of the utility model power station direct air-cooling system;
Fig. 6 is the structural representation of the detent mechanism of the movable abat-vent of the utility model power station direct air-cooling system.
Among the figure: the movable windbreak of 1-, 2-detent mechanism, 21-the first backstay, 22-the second backstay, 23-setscrew nut, 24-alignment pin, 25-gathering sill, 100-platform, 200-column, 300-boiler room, 400-steam turbine building, 500-Air-Cooling Island.
The specific embodiment
By reference to the accompanying drawings the utility model is described further:
As shown in Figure 2, the movable abat-vent of present embodiment power station direct air-cooling system comprises movable windbreak 1, and described movable windbreak 1 is hingedly mounted on the edge of platform 100 of power station direct air-cooling system; Also comprise be used to the changeless detent mechanism 2 of angle that keeps between described movable windbreak 1 and the described platform 100.Extremely shown in Figure 6 such as Fig. 3, described detent mechanism comprises the first backstay 21, the second backstay 22, setscrew nut 23 and alignment pin 24, the first end of described the first backstay 21 and described movable windbreak 1 are hinged, and described alignment pin 24 is installed on the second end of described the first backstay 21; Described platform 100 is fixedly mounted on the top of the column 200 of power station direct air-cooling system, and an end and the described column 200 of described the second backstay 22 are hinged; Be provided with along its length gathering sill 25 on described the second backstay 22, described alignment pin 24 passes described gathering sill 25 away from an end of described the first backstay 21 and is threaded with described setscrew nut 23.The described alignment pin 24 of installing on described the first backstay 21 can be on described the second backstay 22 the 25 interior motions of described gathering sill, thereby so that the detent mechanism that described the first backstay 21 and described the second backstay 22 consist of can shorten or extend, can be so that described the first backstay 21 be relative fixing with described the second backstay 22 by described setscrew nut 23.Thereby realize regulating the corner dimension between described movable windbreak 1 and the described platform 100, and after regulating, keep the angle between described movable windbreak (1) and the described platform (100) to immobilize, in order to for different wind directions and wind speed described movable windbreak 1 is regulated; Effective Raise radiator inlet velocity and prevent the generation of hot air reflux phenomenon effectively weakens unfavorable wind speed and direction to the impact of air cooling tubes condenser heat exchange, so that the air cooling tubes condenser of power station direct air-cooling system reaches best heat transfer effect.
In the present embodiment, different with wind speed according to wind direction, the angle between described movable windbreak 1 and the described platform 100 is adjustable in the scope of 0～90 degree, the angle that needs such as 0 degree, 90 degree, 30 degree or 60 degree etc.
Above-described embodiment only is for the invention example clearly is described, and is not the restriction to the invention specific embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And the apparent variation of being amplified out thus or change still are among the protection domain of the invention claim.
Claims (2)
1. the movable abat-vent of power station direct air-cooling system is characterized in that, comprises movable windbreak (1), and described movable windbreak (1) is hingedly mounted on the edge of platform (100) of power station direct air-cooling system; Also comprise be used to the changeless detent mechanism of angle (2) that keeps between described movable windbreak (1) and the described platform (100), described detent mechanism comprises the first backstay (21), the second backstay (22), setscrew nut (23) and alignment pin (24), the first end of described the first backstay (21) and described movable windbreak (1) are hinged, and described alignment pin (24) is installed on the second end of described the first backstay (21); Described platform (100) is fixedly mounted on the top of the column (200) of power station direct air-cooling system, and an end of described the second backstay (22) and described column (200) are hinged; Be provided with along its length gathering sill (25) on described the second backstay (22), described alignment pin (24) passes described gathering sill (25) away from an end of described the first backstay (21) and is threaded with described setscrew nut (23).
2. the movable abat-vent of power station direct air-cooling system according to claim 1 is characterized in that, the angle between described movable windbreak (1) and the described platform (100) is 0～90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358925 CN202709779U (en) | 2012-07-24 | 2012-07-24 | Movable wind shielding device of direct air-cooling system of power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358925 CN202709779U (en) | 2012-07-24 | 2012-07-24 | Movable wind shielding device of direct air-cooling system of power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202709779U true CN202709779U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220358925 Expired - Fee Related CN202709779U (en) | 2012-07-24 | 2012-07-24 | Movable wind shielding device of direct air-cooling system of power station |
Country Status (1)
| Country | Link |
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| CN (1) | CN202709779U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335536A (en) * | 2013-07-22 | 2013-10-02 | 华北电力大学（保定） | Anti-wind device of air cooling island of direct air cooling unit |
| CN114111368A (en) * | 2021-10-25 | 2022-03-01 | 国网河北省电力有限公司电力科学研究院 | Air cooling island wind shield wall system and air cooling island |
-
2012
- 2012-07-24 CN CN 201220358925 patent/CN202709779U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335536A (en) * | 2013-07-22 | 2013-10-02 | 华北电力大学（保定） | Anti-wind device of air cooling island of direct air cooling unit |
| CN103335536B (en) * | 2013-07-22 | 2015-06-10 | 华北电力大学（保定） | Anti-wind device of air cooling island of direct air cooling unit |
| CN114111368A (en) * | 2021-10-25 | 2022-03-01 | 国网河北省电力有限公司电力科学研究院 | Air cooling island wind shield wall system and air cooling island |
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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: 20130130 Termination date: 20170724 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |