CN101581544A - Shutter type environmental wind guiding device of air cooling island of power plant - Google Patents
Shutter type environmental wind guiding device of air cooling island of power plant Download PDFInfo
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- CN101581544A CN101581544A CNA2009100868367A CN200910086836A CN101581544A CN 101581544 A CN101581544 A CN 101581544A CN A2009100868367 A CNA2009100868367 A CN A2009100868367A CN 200910086836 A CN200910086836 A CN 200910086836A CN 101581544 A CN101581544 A CN 101581544A
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- air cooling
- guiding device
- air
- wind guiding
- water conservancy
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Abstract
The invention discloses a shutter type environmental wind guiding device of an air cooling island of a power plant, belonging to the technical field of energy power. The shutter type environmental wind guiding device is installed between the lower margin of an air cooling platform and an upright post brace of the air cooling platform, is fixed on the footpath or wind wall around the periphery of the margin of the air cooling platform and inclines from the outside of the air cooling platform to the air cooling island. The angle of inclination of a guiding flat slab is regulated from 30 degrees to 60 degrees by a shutter lift regulating mechanism; the number of layers of the guiding flat slab is determined according to the distance between the lower margin of the air cooling platform and the upright post brace. The device of the invention adopts the smooth guiding flat slab with regulable angle to realize the guiding function of the environmental wind and ensure that the kinetic energy of the environmental wind moving transversely on the lower part of the air cooling platform is converted into the pressure energy of cooling air and the kinetic energy blown toward the inlet of an air cooling fan along the guiding flat slab so as to improve cooling air flow, reduce hot air reflow, improve operating characteristics of air cooling systems, decrease back pressure of machine sets and improve safety and economical efficiency of operation of machine sets.
Description
Technical field
The invention belongs to the energy source and power field.Being particularly related to utilize is arranged in around the air cooling platform lower edge periphery and the flap type device of air cooling platform between supporting, weaken the adverse effect of surroundings wind field to the direct air cooling system operation, effectively utilize the surroundings wind field energy, improve the air cooling system operation characteristic, reduce a kind of shutter type environmental wind guiding device of air cooling island of power plant of unit back pressure.
Background technology
The regional rich coal lack of water of China " three Norths ", condenser adopt Direct Air-Cooling Technology to become the effective means of power station water saving.Direct Air-cooled Unit is with the cooling medium of surrounding air as turbine discharge, so the flowing heat transfer characteristic that environment weather condition, especially ambient wind velocity, wind direction etc. will appreciable impact cooling air, and then influences the security and the economy of unit operation.On the one hand, surroundings wind field increases the flow resistance of air cooling tubes condenser finned-tube bundle, causes the air cooling blower fan flow to reduce; On the other hand, surroundings wind field is unfavorable for the smooth discharge of air cooling tubes condenser outlet hot-air, but the pyrogenicity air reenters the air cooling tubes condenser inlet or refluxes inner formation of air cooling tubes condenser, and the condenser inlet air temperature is raise, and the air cooling system heat transfer property worsens.
The wind resource that enrich in " three Norths " area is unfavorable to the operation of Air-cooled Unit.Existing air cooling system at air cooling platform top installing windbreak, can suppress the hot air reflux phenomenon usually to a certain extent.There are some researches show that under the effect of surroundings wind field, low-pressure area can be formed at the air cooling platform bottom, is unfavorable for the air draught of air cooling blower fan.If can between air cooling platform bottom and concrete column support, design a kind of surroundings wind field guiding device, to weaken the adverse effect of surroundings wind field, improve the operation characteristic of air cooling system, have certain practical value undoubtedly.
Summary of the invention
The objective of the invention is at the adverse effect of ambient wind the air cooling system operation, a kind of environmental wind guiding device of shutter form is proposed, it is characterized in that, shutter environment wind guiding device is installed between air cooling platform lower edge periphery and the concrete column support, and be fixed on the pavement or windbreak of air cooling platform, play the ambient wind guide functions.
The multilayer water conservancy diversion flat board of described shutter environment wind guiding device is arranged from the horizontal by inclination angle [theta], tilt to the air cooling island by the air cooling platform outside, thereby surroundings wind field is played guide functions, the kinetic energy of the ambient wind of air cooling platform lower, transverse motion is converted into the pressure energy of cooling air, and the kinetic energy that blows to the air cooling blower fan inlet along multilayer water conservancy diversion flat board, the cooling air delivery of air cooling blower fan is increased, and the air cooling system runnability improves.
The water conservancy diversion plate material of described shutter environment wind guiding device is the smooth aluminium alloy of smooth surface, stainless steel or glass-reinforced plastic material.
The dull and stereotyped inclination angle [theta] of the water conservancy diversion of described shutter environment wind guiding device is between 30 °-60 °, and wind speed is high more, and the inclination angle is big more.
The invention has the beneficial effects as follows and utilize the smooth water conservancy diversion flat board of angle adjustable, realize the guide functions of ambient wind, make the kinetic energy of the ambient wind of air cooling platform lower, transverse motion be converted into the pressure energy that cools off air, and the kinetic energy that blows to the air cooling blower fan inlet along the water conservancy diversion flat board, to improve cooling air delivery, reduce hot air reflux, improve the air cooling system operation characteristic, reduce the unit back pressure, improve the security and the economy of unit operation.
Description of drawings
Fig. 1 is the shutter type environmental wind guiding device structural representation.
Fig. 2 is that air cooling island, air cooling platform support, shutter type environmental wind guiding device relative position schematic diagram.
Fig. 3 is Fig. 2 vertical view.
The specific embodiment
The present invention proposes a kind of environmental wind guiding device of shutter form.In shutter environment wind guiding device structural representation shown in Figure 1, represented that adjacent both sides, air cooling island have installed the local amplification effect of shutter type environmental wind guiding device.Shutter type environmental wind guiding device 1 is installed in air cooling island air cooling platform 2 edge lower part, and is fixed on air cooling island pavement or the windbreak.Around the periphery on air cooling island, the flap type guiding device all is installed, as shown in Figure 2.The shutter guiding device is made up of as aluminium alloy, stainless steel or glass-reinforced plastic material the smooth sheet metal of smooth surface.By the shutter lifting regulating mechanism, can adjust the tilt angle theta of water conservancy diversion flat board.The inclination angle of water conservancy diversion flat board determines that according to the wind speed size θ is tilted to the air cooling island by the air cooling platform outside usually between 30 °-60 °.Under the guiding device open mode, the vertical range between every layer of water conservancy diversion flat board is between 0.8-1m, and the width of water conservancy diversion flat board is between 1-1.5m.The number of plies of water conservancy diversion flat board determines that according to the distance between air cooling platform lower edge and the air cooling platform upright supports water conservancy diversion flat board is evenly arranged between air cooling platform lower edge and the upright supports.For example, distance between air cooling platform lower edge and upright supports is 5m, when the vertical range between every layer of water conservancy diversion flat board is taken as 1m, the number of plies of water conservancy diversion flat board be made as 3 layers comparatively reasonable, promptly topmost the dull and stereotyped upper limb of one deck water conservancy diversion is 1m apart from the air cooling platform lower edge, and the dull and stereotyped lower edge of bottom one deck water conservancy diversion is 1m apart from the air cooling platform upright supports.
Fig. 2 is that air cooling island, air cooling platform support, flap type guiding device relative position schematic diagram, and Fig. 3 is Fig. 2 vertical view.Can see that shutter type environmental wind guiding device 1 places around air cooling island air cooling platform 2 peripheries and between the air cooling platform upright supports 3.No matter under which kind of wind speed, wind direction, the setting of this shutter type environmental wind guiding device, can both make the kinetic energy direction along the water conservancy diversion flat board as much as possible of ambient wind transverse movement, change into the kinetic energy that rushes at the air cooling blower fan inlet, thereby increase the air quantity of air cooling blower fan, improve the heat-transfer character on air cooling island.
Claims (5)
1. shutter type environmental wind guiding device of air cooling island of power plant, it is characterized in that, shutter environment wind guiding device is installed between air cooling platform lower edge periphery, air cooling island and the concrete column support, and is fixed on the pavement or windbreak of air cooling platform, plays the ambient wind guide functions.
2. according to the described shutter type environmental wind guiding device of air cooling island of power plant of claim 1, it is characterized in that, the multilayer water conservancy diversion flat board of described shutter environment wind guiding device is arranged from the horizontal by inclination angle [theta], tilt to the air cooling island by air cooling platform outside, air cooling island, thereby surroundings wind field is played guide functions, the kinetic energy of the ambient wind of air cooling island air cooling platform lower, transverse motion is converted into the pressure energy of cooling air, and the kinetic energy that blows to the air cooling blower fan inlet along multilayer water conservancy diversion flat board, the cooling air delivery of air cooling blower fan is increased, and the air cooling system runnability improves.
3. according to the described shutter type environmental wind guiding device of air cooling island of power plant of claim 1, it is characterized in that the water conservancy diversion plate material of described shutter environment wind guiding device is the smooth aluminium alloy of smooth surface, stainless steel or glass-reinforced plastic material.
4. according to the described shutter type environmental wind guiding device of air cooling island of power plant of claim 1, it is characterized in that the dull and stereotyped inclination angle [theta] of the water conservancy diversion of described shutter environment wind guiding device is between 30 °-60 °, wind speed is high more, and the inclination angle is big more.
5. according to the described shutter type environmental wind guiding device of air cooling island of power plant of claim 1, it is characterized in that the vertical range between described multilayer water conservancy diversion flat layer is between 0.8-1m, the width of water conservancy diversion flat board is between 1-1.5m; The water conservancy diversion flat board is evenly arranged between air cooling platform lower edge and the air cooling platform upright supports, and its number of plies is determined according to the distance between air cooling platform lower edge and the upright supports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100868367A CN101581544A (en) | 2009-06-08 | 2009-06-08 | Shutter type environmental wind guiding device of air cooling island of power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100868367A CN101581544A (en) | 2009-06-08 | 2009-06-08 | Shutter type environmental wind guiding device of air cooling island of power plant |
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| CN101581544A true CN101581544A (en) | 2009-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2009100868367A Pending CN101581544A (en) | 2009-06-08 | 2009-06-08 | Shutter type environmental wind guiding device of air cooling island of power plant |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155850A (en) * | 2011-05-06 | 2011-08-17 | 哈尔滨工业大学（威海） | Direct air cooling island windbreak deflecting device for power station |
| CN103278025A (en) * | 2013-06-03 | 2013-09-04 | 国电龙源电力技术工程有限责任公司 | Air controlling and flow guiding device for air cooling island of power station |
| CN107388845A (en) * | 2017-06-30 | 2017-11-24 | 中科诺维(北京)科技有限公司 | Air-Cooling Island windbreak |
| CN109322438A (en) * | 2018-11-13 | 2019-02-12 | 杜天阳 | Build foundations plate |
| CN109780884A (en) * | 2018-12-29 | 2019-05-21 | 中国神华能源股份有限公司 | Method for building up, control method, system and the unit of unit back pressuce model |
| CN112484523A (en) * | 2020-11-18 | 2021-03-12 | 暨南大学 | Bottom water-receiving and flow field-enhanced wet cooling tower and cooling method |
-
2009
- 2009-06-08 CN CNA2009100868367A patent/CN101581544A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155850A (en) * | 2011-05-06 | 2011-08-17 | 哈尔滨工业大学（威海） | Direct air cooling island windbreak deflecting device for power station |
| CN103278025A (en) * | 2013-06-03 | 2013-09-04 | 国电龙源电力技术工程有限责任公司 | Air controlling and flow guiding device for air cooling island of power station |
| CN103278025B (en) * | 2013-06-03 | 2016-02-03 | 国电龙源电力技术工程有限责任公司 | For the control wind guiding device of air cooling island of power plant |
| CN107388845A (en) * | 2017-06-30 | 2017-11-24 | 中科诺维(北京)科技有限公司 | Air-Cooling Island windbreak |
| CN107388845B (en) * | 2017-06-30 | 2019-05-21 | 中科诺维(北京)科技有限公司 | Air-Cooling Island windbreak |
| CN109322438A (en) * | 2018-11-13 | 2019-02-12 | 杜天阳 | Build foundations plate |
| CN109780884A (en) * | 2018-12-29 | 2019-05-21 | 中国神华能源股份有限公司 | Method for building up, control method, system and the unit of unit back pressuce model |
| CN112484523A (en) * | 2020-11-18 | 2021-03-12 | 暨南大学 | Bottom water-receiving and flow field-enhanced wet cooling tower and cooling method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091118 |