CN202074846U - Wind-proof flow guide device for direct air cooling island of power plant - Google Patents
Wind-proof flow guide device for direct air cooling island of power plant Download PDFInfo
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- CN202074846U CN202074846U CN 201120141710 CN201120141710U CN202074846U CN 202074846 U CN202074846 U CN 202074846U CN 201120141710 CN201120141710 CN 201120141710 CN 201120141710 U CN201120141710 U CN 201120141710U CN 202074846 U CN202074846 U CN 202074846U
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Abstract
The utility model relates to a wind-proof flow guide device for a direct air cooling island of a power plant. The wind-proof flow guide device comprises wind-proof flow guide meshes, a fixed support bar and a guide rope, wherein the fixed support bar and the guide rope are respectively installed and fixed between the lower edge of an air cooling island platform and the ground, the fixed support bar is positioned on the inside of the guide rope, the wind-proof flow guide mesh is composed of porous web and a frame, a plurality of wind-proof flow guide meshes are vertically layered between the fixed support bar and the guide rope, one end of the wind-proof flow guide mesh is fixed on the fixed support bar, and the other end of the wind-proof flow guide mesh is fixed on the guide rope. According to the change of the wind speed, the guide rope is vertically lifted to adjust the tilt angle of the wind-proof flow guide meshes to ensure that the wind direction of the environmental wind coming from the outside of the air cooling island is obliquely upward from obliquely downward, the flow guide function is exerted to the environmental wind, the pressure of the negative pressure area is increased, the cooling air flow of an air cooling unit on the periphery of the environmental wind is increased, the hot air back flow quantity is reduced, the heat exchange characteristics of an air cooling condenser are improved, the air flow of the internal air cooling unit is not influenced, and the operation safety and economical efficiency of an air cooling unit are improved.
Description
Technical field
The utility model belongs to the energy source and power technical field, the windproof guiding device in particularly a kind of power station direct air-cooling island.
Background technology
In northern China, can near coal-mine power plant location water resource be seriously deficient, especially be difficult to more bear big water consumption in dry season, thereby have influence on the problem that build power plant.Direct Air-Cooling Technology, because the water saving characteristics that it is outstanding, can solve the bottleneck problem of water resource well, the used Direct Air-Cooled of this technology island comprises tens air cooling blower fans by column-row arrangement, utilizes surrounding air that direct air cooled condenser is carried out forced-convection heat transfer.Facts have proved that direct air cooled condenser heat exchange effect very easily is subjected to the external environment factor affecting, main cause is that ambient wind can cause the direct air cooled condenser heat exchange to worsen, and influences the safety and the economy operation on Direct Air-Cooled island.Ambient wind is one of research air cooling technique problem demanding prompt solution to the influence on Direct Air-Cooled island.
There are some researches show that surroundings wind field is unfavorable for the air draught of air cooling blower fan, and ambient wind velocity is big more, ambient wind is big more to the influence of blower fan suction air volume, and is also big more to direct air cooled condenser heat exchange influential effect.Existing air cooling system can suppress the harmful effect and the hot air reflux phenomenon of ambient wind to a certain extent usually at platform top, air cooling island installing windbreak; But under the bigger situation of ambient wind, the zone that facings the wind of air cooling island platform below can form negative pressuren zone, and the suction air volume of this air cooling unit, zone blower fan is obviously reduced, even air occurs and pour in down a chimney phenomenon.The method that can take is below the platform of air cooling island guiding device to be installed, as application number is the Chinese patent disclosed " installing the power station direct air-cooling condenser of air intake guide device additional " of 200610040699.X, it comprises heat-exchanging tube bundle, windbreak (1), blower fan group (2), steel structure platform (3) and column (4), steel structure platform (3) upwards is connected on the column (4), heat-exchanging tube bundle and blower fan group (2) are arranged on the steel structure platform (3), blower fan group (2) is arranged in the heat-exchanging tube bundle below, windbreak (1) vertically upwards is arranged in the periphery of steel structure platform (3), steel structure platform (3) periphery of its windbreak (1) below vertically is furnished with air intake guide device (5) downwards, be used to change the direction that air enters the peripheral blower fan suction inlet of air cooling tubes condenser, make harmful natural wind become useful natural wind, improve the performance of air cooling tubes condenser.Described air intake guide device (5) is made up of blade (5.1), coupled connecting rod (5.2) and the control lever (5.3) that can move up and down.It can improve the facing the wind intake of regional blower fan of periphery, air cooling island.But the blade of installing on the air cooling island (5.1) is negligible amounts (Fig. 5), and there is negative pressure region at blade (5.1) rear, make ambient wind the whirlwind backflow phenomenon occur at the guide vane rear, worsened the flow field of inner air cooling blower fan unit, reduced the intake of the inner blower fan in air cooling island, ambient wind reduces this problem of air cooling system suction air volume and fails all the time to obtain effectively thoroughly to solve.It uses a control lever (5.3) in addition, easily makes blade (5.1) mass motion during adjusting, and the angular range of adjusting is limited, the water conservancy diversion deleterious; Blade (5.1) two summits are unfixing, easily swing when ambient wind is big, influence the water conservancy diversion effect; In addition, do not provide the adjusting angle scope of blade (5.1) and the vertical distance of adjacent blades (5.1) in the document yet.
Summary of the invention
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, it is reasonable to propose a kind of structure, be connected firmly, regulative mode is flexible, surroundings wind field is played guide functions, effectively improve the peripheral blower fan intake in air cooling island, do not influence the inner blower fan intake in air cooling island, weaken the harmful effect of ambient wind, improve the windproof guiding device in power station direct air-cooling island of unit operation security and economy Direct Air-Cooled unit, air cooling island heat transfer characteristic.
The technical scheme in the invention for solving the above technical problem is: the windproof guiding device in a kind of power station direct air-cooling island, it is arranged in periphery, air cooling island vertically downward, be installed between platform below, air cooling island and the ground, it is characterized in that: it comprises windproof water conservancy diversion net, fixed support bar and regulates rope, fixed support bar and adjusting rope are fixed on respectively between air cooling island platform lower edge and the ground, the fixed support bar is positioned at regulates the rope inboard, windproof water conservancy diversion net is made up of porous net sheet and frame, and porous net sheet is fixed on the quadrangle frame.The some online lower leafs of windproof water conservancy diversion are arranged between fixed support bar and the adjusting rope, wherein two angles, frame the inside and fixed support bar are connected and fixed, two angles, frame outside are connected with the adjusting rope, according to change of wind velocity, regulate the angle of inclination that rope is adjusted windproof water conservancy diversion net by lifting up and down.
Porous net sheet described in the utility model is woven by nylon rope, and the nylon rope diameter is 0.2 ~ 1cm, and porous net sheet aperture is between 12 ~ 36 orders.
Windproof water conservancy diversion net described in the utility model lateral has a down dip, and the angle of inclination is between level and downward 45 °.
The online lower floor of windproof water conservancy diversion described in the utility model interlamellar spacing is 1.5 ~ 2m, and the about width of windproof water conservancy diversion net is between 2 ~ 3m.
The adjusting described in the utility model end of restricting is fixed according to adjusting position, and the other end is regulated by manual or electric device.
The utility model mounting arrangements is below the platform of air cooling island and between the ground, regulate the angle of inclination of water conservancy diversion net according to change of wind velocity, make ambient wind wind direction from the outside, air cooling island by becoming under oblique obliquely, wind speed is high more, the inclination angle is big more, windproof water conservancy diversion wire side level when calm.Advantage of the present utility model is, under the ambient wind velocity condition,, change the wind direction of ambient wind by changing the angle of the windproof guiding device in power station direct air-cooling island, make ambient wind wind direction from the air cooling island outside by becoming under oblique obliquely, ambient wind is played guide functions; Can reduce simultaneously the ambient wind kinetic energy of air cooling island platform lower, transverse motion, weaken the negative pressure region negative pressure, improve the air inflow of ambient wind outer peripheral areas air cooling unit cooling air, reduce hot air reflux, improve these air cooling unit heat transfer characteristics; Reduced the influence of ambient wind, improved the security and the economy of unit operation the peripheral air cooling blower fan service behaviour in air cooling island.The utility model regulative mode is flexible, and windproof water conservancy diversion net is connected firmly, and ambient wind can not blown windproof water conservancy diversion net; Air cooling island platform has all carried out water conservancy diversion to the air on ground down, is improving peripheral blower fan intake simultaneously, can the blower fan of inner air cooling unit, air cooling island not had a negative impact.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is the user mode schematic diagram of the utility model ambient wind when the right side blows.
Fig. 2 is the enlarged diagram of the local A of Fig. 1.
Fig. 3 is a confined state schematic diagram under the utility model calm condition.
Fig. 4 is the user mode schematic diagram of the utility model ambient wind when the left side blows.
Fig. 5 is the airflow field schematic diagram that the guide vane ambient wind is installed on the power station direct air-cooling island in the background technology.
The airflow field schematic diagram of ambient wind when Fig. 6 is the utility model use.
Label among the figure is: 1. windbreak, and 2. air cooling blower fan, 3. windproof water conservancy diversion net, 31. porous net sheets, 32. frames, 4. pillar, 5. air cooling island platform, 6. ground, 7. the fixed support bar is 8. regulated rope.
The specific embodiment
From Fig. 1, Fig. 3, Fig. 4 as can be seen, the windproof guiding device in a kind of power station direct air-cooling island, it is arranged in periphery, air cooling island (not comprising steam turbine building one side, as follows) vertically downward, below the air cooling island platform 5 and between the ground 6.Air cooling island platform 5 supports by some pillars 4, and air cooling blower fan 2 is installed on the air cooling island platform 5.Windbreak 1 is an enclosure wall, is contained in the upper outside of air cooling island platform 5.Wind direction is expressed as respectively and blows from the right side and blow from the left side among Fig. 1, Fig. 4.
Fig. 1 is the user mode schematic diagram of the utility model ambient wind when the right side blows, and Fig. 2 is the enlarged diagram of the local A of Fig. 1.As Fig. 1, shown in Figure 2, the windproof guiding device in a kind of power station direct air-cooling island, it is arranged in periphery, air cooling island vertically downward, below the air cooling island platform 5 and between the ground 6, it mainly comprises windproof water conservancy diversion net 3, fixed support bar 7 and adjusting rope 8, fixed support bar 7 and adjusting rope 8 vertically are fixed on respectively between air cooling island platform 5 lower edges and the ground 6, fixed support bar 7 is positioned at regulates rope 8 inboards, windproof water conservancy diversion net 3 is made up of porous net sheet 31 and frame 32, some windproof water conservancy diversion nets about in the of 3 layered arrangement at fixed support bar 7 with regulate between the rope 8, wherein two angles, frame 32 the insides and two fixed support bars 7 are connected and fixed, two angles, frame 32 outsides are connected with two adjusting ropes 8, according to change of wind velocity, regulate the angle of inclination that rope is adjusted windproof water conservancy diversion net by lifting up and down.
It is steel wire rope that the utility model is regulated rope 8, regulates the difference of rope 8 lower ends according to adjusting position, is fixed on the ground 6; Regulate rope 8 upper ends for two and drive, reach the purpose of regulating windproof water conservancy diversion net 3 angles of inclination by two ropewinders.Ropewinder can move in the horizontal direction by control device when rolling.Windproof water conservancy diversion net 3 is undertaken up and down by adjusting rope and ropewinder and moves horizontally.Windproof water conservancy diversion net described in the utility model 3 laterals have a down dip, and the angle of inclination is between level and downward 45 °.Windproof water conservancy diversion net 3 angles of inclination determine that according to the size of ambient wind velocity the angle of inclination has a down dip between 45 ° to windproof water conservancy diversion net lateral at 0 °.
The distance of windproof water conservancy diversion net 3 levels interlayers described in the utility model is 1.5 ~ 2m, and the about width of windproof water conservancy diversion net 3 is between 2 ~ 3m.Porous net sheet 31 described in the utility model is by the nylon rope braiding, and the nylon rope diameter is 0.2 ~ 5cm, and porous net sheet 31 apertures are between 12 ~ 36 orders, and porous net sheet 31 is fixed on the quadrangle frame 32.
When the utility model used, when wind speed was 0m/s, just under calm condition, as shown in Figure 3, windproof water conservancy diversion net 3 was in level, can make the heat exchange of direct air cooled condenser not have negative effect like this.When wind speed during greater than 0m/s, utilize and regulate the angle of inclination that rope 8 is regulated the windproof water conservancy diversion net 3 of the direction of the wind comes from, wind speed is big more, and the angle of windproof water conservancy diversion net and horizontal plane is big more.Fig. 1 is the user mode schematic diagram of ambient wind when the right side blows.As shown in Figure 1, only regulate the windproof water conservancy diversion net 3 on right side, the windproof water conservancy diversion net in left side keeps level; Fig. 4 is the user mode schematic diagram of ambient wind when the left side blows, and under this state, only regulates the windproof water conservancy diversion net 3 in left side.
Fig. 5 is the airflow field schematic diagram that the guide vane ambient wind is installed on the power station direct air-cooling island in the background technology.As shown in Figure 5, there is negative pressure region, makes ambient wind the whirlwind backflow phenomenon occur, worsened the flow field of inner air cooling blower fan unit, reduced the intake of the inner submarginal some air cooling blower fans in air cooling island at the guide vane rear at the blade rear.
The utility model mounting arrangements is regulated the angle of inclination of water conservancy diversion net according to change of wind velocity below the platform of air cooling island and between the ground, make ambient wind wind direction from the outside, air cooling island by becoming under oblique obliquely, and wind speed is high more, and the inclination angle is big more.The airflow field schematic diagram of ambient wind when Fig. 6 is the utility model use.As shown in Figure 6, the utility model plays guide functions to ambient wind.Can reduce simultaneously the ambient wind kinetic energy of air cooling island platform lower, transverse motion, weaken the negative pressure region negative pressure, improve the air inflow of ambient wind outer peripheral areas air cooling unit cooling air, reduce hot air reflux, improve these air cooling unit heat transfer characteristics, improve the security and the economy of unit operation, can the blower fan of inner air cooling unit, air cooling island not had a negative impact simultaneously.
The utility model regulative mode is flexible, and windproof water conservancy diversion net is connected firmly, and ambient wind can not blown windproof water conservancy diversion net; Air cooling island platform has all carried out water conservancy diversion to the air on ground down, is improving peripheral blower fan intake simultaneously, can the blower fan of inner air cooling unit, air cooling island not had a negative impact.
Claims (5)
1. windproof guiding device in power station direct air-cooling island, it is arranged in periphery, air cooling island vertically downward, be installed between platform below, air cooling island and the ground, it is characterized in that: it comprises windproof water conservancy diversion net, fixed support bar and adjusting rope, fixed support bar and adjusting rope are fixed on respectively between air cooling island platform lower edge and the ground, the fixed support bar is positioned at regulates the rope inboard, windproof water conservancy diversion net is made up of porous net sheet and frame, porous net sheet is fixed on the quadrangle frame, the some online lower leafs of windproof water conservancy diversion are arranged between fixed support bar and the adjusting rope, wherein two angles, frame the inside and fixed support bar are connected and fixed, two angles, frame outside are connected with the adjusting rope, according to change of wind velocity, regulate the angle of inclination that rope is adjusted windproof water conservancy diversion net by lifting up and down.
2. according to the windproof guiding device in the described power station direct air-cooling of claim 1 island, it is characterized in that described porous net sheet is woven by nylon rope, the nylon rope diameter is 0.2 ~ 5cm, and porous net sheet aperture is between 12 ~ 36 orders.
3. according to the windproof guiding device in the described power station direct air-cooling of claim 1 island, it is characterized in that described windproof water conservancy diversion net lateral has a down dip, the angle of inclination is between level and downward 45 °.
4. according to the windproof guiding device in the described power station direct air-cooling of claim 1 island, it is characterized in that the online lower floor of described windproof water conservancy diversion interlamellar spacing is 1.5 ~ 2m, the about width of windproof water conservancy diversion net is between 2 ~ 3m.
5. according to the windproof guiding device in the described power station direct air-cooling of claim 1 island, it is characterized in that regulating rope one end and fix, the other end is regulated by manual or electric device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120141710 CN202074846U (en) | 2011-05-06 | 2011-05-06 | Wind-proof flow guide device for direct air cooling island of power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120141710 CN202074846U (en) | 2011-05-06 | 2011-05-06 | Wind-proof flow guide device for direct air cooling island of power plant |
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| Publication Number | Publication Date |
|---|---|
| CN202074846U true CN202074846U (en) | 2011-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120141710 Expired - Lifetime CN202074846U (en) | 2011-05-06 | 2011-05-06 | Wind-proof flow guide device for direct air cooling island of power plant |
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| CN (1) | CN202074846U (en) |
Cited By (7)
| 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 |
| CN102937383A (en) * | 2012-12-03 | 2013-02-20 | 中能服(北京)节能投资有限公司 | Stream guiding and anti-freezing device for direct air cooling island of power plant |
| CN104180682A (en) * | 2014-07-21 | 2014-12-03 | 华北电力大学 | Fixing structure for spatial position of environmental wind field induction device of direct air-cooling system |
| CN104654891A (en) * | 2015-02-10 | 2015-05-27 | 重庆蜀东天益空气冷却器有限公司 | Air cooler wind-break wall |
| CN108800977A (en) * | 2018-06-11 | 2018-11-13 | 华北电力大学 | A kind of power station reciprocating machine ventilation direct air cooled condenser |
| CN108996415A (en) * | 2018-08-31 | 2018-12-14 | 青岛海西重机有限责任公司 | A kind of the wind resistance device and its assemble method of automatic open close |
| WO2019180581A1 (en) * | 2018-03-19 | 2019-09-26 | Ormat Technolgies Inc. | Wind guiding vane apparatus |
-
2011
- 2011-05-06 CN CN 201120141710 patent/CN202074846U/en not_active Expired - Lifetime
Cited By (9)
| 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 |
| CN102937383A (en) * | 2012-12-03 | 2013-02-20 | 中能服(北京)节能投资有限公司 | Stream guiding and anti-freezing device for direct air cooling island of power plant |
| CN104180682A (en) * | 2014-07-21 | 2014-12-03 | 华北电力大学 | Fixing structure for spatial position of environmental wind field induction device of direct air-cooling system |
| CN104180682B (en) * | 2014-07-21 | 2016-04-20 | 华北电力大学 | For the fixed structure of direct air cooling system surroundings wind field inducing device locus |
| CN104654891A (en) * | 2015-02-10 | 2015-05-27 | 重庆蜀东天益空气冷却器有限公司 | Air cooler wind-break wall |
| WO2019180581A1 (en) * | 2018-03-19 | 2019-09-26 | Ormat Technolgies Inc. | Wind guiding vane apparatus |
| US10871329B2 (en) | 2018-03-19 | 2020-12-22 | Ormat Technologies, Inc. | Wind guiding vane apparatus |
| CN108800977A (en) * | 2018-06-11 | 2018-11-13 | 华北电力大学 | A kind of power station reciprocating machine ventilation direct air cooled condenser |
| CN108996415A (en) * | 2018-08-31 | 2018-12-14 | 青岛海西重机有限责任公司 | A kind of the wind resistance device and its assemble method of automatic open close |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111214 Effective date of abandoning: 20120725 |