CN203657538U - Air cooling island comprising louver type wind walls - Google Patents
Air cooling island comprising louver type wind walls Download PDFInfo
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- CN203657538U CN203657538U CN201420020538.4U CN201420020538U CN203657538U CN 203657538 U CN203657538 U CN 203657538U CN 201420020538 U CN201420020538 U CN 201420020538U CN 203657538 U CN203657538 U CN 203657538U
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- air
- air cooling
- venetian blind
- deep bead
- blind type
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Abstract
The utility model discloses an air cooling island comprising louver type wind walls. The air cooling island comprises an air cooling platform, columns, air cooling radiator units and fans; the columns are fixed at the bottom of the air cooling platform; the air cooling radiator units are arranged on the air cooling platform; the fans are arranged under the air cooling radiator units respectively; a plurality of wind frames are arranged around the air cooling platform; louver type wind boards are arranged on the wind frames respectively. According to the air cooling island comprising the louver type wind walls, the air flow around the air cooling island can be effectively guided through the louver type wind walls and accordingly the influence of the adverse wind direction and speed on heat exchange of the air cooling radiator units is improved.
Description
Technical field
The utility model relates to the direct air-cooling apparatus in power station, relates in particular to a kind of Air-Cooling Island of tool venetian blind type windbreak.
Background technology
The direct air cooling system in power station, is called for short direct air cooling system, is the cooling system that directly adopts the cooling turbine discharge of surrounding air, and its heat-exchanger rig is fin tube type air cooling heat radiator unit.Direct Air-cooled Unit is compared with same capacity water chiller, and air cooling system itself can be economized on water more than 97%, and whole plant economizes on water approximately 65%.So direct air cooling system is the optimal selection in " rich coal lack of water " area or construction thermal power plant, arid area.
The cooling medium adopting due to direct air cooling system is surrounding air, and therefore, when Direct Air-cooled Unit operation, back pressure can be subject to the impact of environmental factor and change, as wind-warm syndrome, wind direction and wind speed etc.Wherein unfavorable wind direction (the wind comes from after Boiler Furnace) and unfavorable wind speed (strong wind) are very large on back pressure impact.This can produce hot air reflux phenomenon when being because the wind comes from after the increase of the speed of beam wind and stove in Air-Cooling Island, and fans entrance wind speed is reduced, and air quantity reduces, thereby heat exchange amount is reduced, and back pressure rises.
Existing direct air cooling system, as shown in Figure 1, comprise boiler room 200, steam turbine building 300 and Air-Cooling Island 100, Air-Cooling Island 100 comprises air cooling platform, column 2, air cooling heat radiator unit and blower fan, platform is fixedly mounted on the top of column 2, air cooling heat radiator cellular installation is on platform, and blower fan is positioned at the below of air cooling heat radiator unit.Air cooling heat radiator unit is made up of " A " 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 makes the bottom-up fin that flows through of cooling-air, thereby carries out cooling to turbine discharge.Whole Air-Cooling Island 100 peripheries are surrounded by windbreak, so that hot air outlet and cool air inlet are separated, stop the hot-air of discharging to be sucked back by short circuit.
Except arranging around Air-Cooling Island 100 that as previously mentioned windbreak 1 reduces the impact of unfavorable wind speed and direction heat exchanging device heat exchange, also has at present the method that installs the net that keeps out the wind below windbreak 1 additional that adopts.But the position that is windbreak or the net that keeps out the wind is all fixed, and ambient wind velocity and wind direction are always changing, as Daihai Lake, inner Mongolia sea, power plant is positioned at Inner Mongol Liangcheng County, scrape northerly (northwester, north wind, northeaster) local winter more, taking northwester as main, blow southerly (southeaster, south wind, southwester) summer, taking southeaster as main more.Fixing windbreak and the net that keeps out the wind are better to the windproof effect of a certain wind direction or wind speed, but in the time that wind direction and wind speed change, and windproof effect will variation, thereby makes heat transfer effect variation, backpressure rising.
Utility model content
In order to address the above problem, the utility model provides a kind of Air-Cooling Island of tool venetian blind type windbreak, and the unfavorable air-flow that it can guide Air-Cooling Island surrounding effectively, improves the heat transfer effect in air cooling heat radiator.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of Air-Cooling Island of tool venetian blind type windbreak, comprise air cooling platform, column, air cooling heat radiator unit, blower fan, described air cooling platform bottom is fixed with column, described air cooling heat radiator unit is located on air cooling platform, blower fan is located at the below of air cooling heat radiator unit, described air cooling platform surrounding is provided with several windshield frames, and each described windshield frame is provided with venetian blind type deep bead.
The rotating shaft of described venetian blind type deep bead is horizontal direction.
Described windshield frame extends to air cooling platform below, and the part that described windshield frame is positioned at air cooling platform below is also provided with venetian blind type deep bead, and windshield frame and the deep bead of described air cooling platform below form air intake passage.
The rotating shaft connection for transmission device of described deep bead, described transmission device is connected in power set, and described power set are by the rotation of transmission device and rotating shaft control deep bead.
Described power set are pneumatic means, hydraulic means or electric device.
The rotation of described every deep bead is independently controlled.
The closing position of described deep bead and the angle of maximum open position are ± 90 °.
Described deep bead is greater than the thickness away from rotating shaft near the thickness of rotating shaft.
Described power set are connected in drive unit and by drive unit control, described drive unit by control module by drive circuit control.
Described control module is personal computer or single-chip microcomputer.
Owing to thering is said structure, the utlity model has following advantage:
1, the Air-Cooling Island of the utility model tool venetian blind type windbreak has the deep bead of venetian blind type, can effectively guide the unfavorable air-flow of Air-Cooling Island surrounding.
2, the Air-Cooling Island of the utility model tool venetian blind type windbreak, air cooling platform below is also provided with deep bead, can improve the air-inlet condition of blower fan, and then improves heat transfer effect.
Brief description of the drawings
Fig. 1 is the structural representation of the direct air cooling system of prior art.
Fig. 2 is the structural representation of Air-Cooling Island of the present utility model.
Fig. 3 is the structural representation of the windbreak of embodiment 1.
Fig. 4 is the structural representation of the windbreak of embodiment 2.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in detail, to understand better the utility model:
The Air-Cooling Island of the tool venetian blind type windbreak that the utility model provides, as shown in Figure 2, comprise air cooling platform, column 2, air cooling heat radiator unit 3, blower fan, described air cooling platform bottom is fixed with column 2, described air cooling heat radiator unit 3 is located on air cooling platform, and blower fan is located at the below of air cooling heat radiator unit 3, and described air cooling platform surrounding is provided with several windbreaks 4, each windbreak 4 comprises several windshield frames 41, and each described windshield frame 41 is provided with venetian blind type deep bead 42.
In the time that Air-Cooling Island is worked, under the acting in conjunction that stops formed eddy current of swabbing action, surroundings wind field and the windbreak of blower fan, make the horizontal direction at fans entrance place form a negative pressuren zone.Along with the increase of ambient wind velocity, this negative pressuren zone constantly increases, and the face velocity of air cooling heat radiator unit is reduced, and fans entrance air quantity reduces; Meanwhile, be subject to the compacting of strong wind, the hot-air of top, air cooling heat radiator unit cannot upwards flow out smoothly, can be folded to downwards at windbreak top, under the impact of fans entrance negative pressuren zone, flows back to fans entrance simultaneously, thereby forms hot air reflux phenomenon; Meanwhile, in the time that unfavorable wind direction occurs, also can produce hot air reflux.Hot air reflux has increased the wind-warm syndrome of fans entrance, has a strong impact on the heat transfer effect of air cooling heat radiator unit.The Air-Cooling Island of the tool venetian blind type windbreak of said structure has replaced fixed windbreak with venetian blind type type wind shield windbreak, and by original windbreak to downward-extension, ambient wind for Air-Cooling Island surrounding becomes guiding from simple ground resistance gear, in the time that ambient wind velocity increases, can reduce the windbreak formation of eddy current around, also reduce pouring in down a chimney that hot-air after heat exchange flows downward and form, improved the heat transfer effect of air cooling heat radiator unit.
Specifically, as Fig. 2, shown in 3, the Air-Cooling Island of the tool venetian blind type windbreak that embodiment 1 provides, being shaped as of Air-Cooling Island is square, therefore several windshield frames 41 are also set to four faces around Air-Cooling Island, because Air-Cooling Island area is very large, therefore each is put together by several independently windshield frames 41, each windshield frame 41 is vertically provided with several horizontal rotating shafts, in Fig. 3, only four horizontal rotating shafts are set as example taking a windshield frame, in every rotating shaft, cover has a deep bead 42, the shape of windshield frame 41 and deep bead 42 does not limit, can surround Air-Cooling Island with windshield frame 41 and deep bead 42 is as the criterion, and the mounting means of rotating shaft does not also limit, can also be for example four vertical rotating shafts that along continuous straight runs is installed.Between rotating shaft and deep bead 42, can be to be fixedly connected with, also can be to be flexibly connected, in the present embodiment for being fixedly connected with, rotating shaft two ends are arranged in windshield frame 41 rotationally, turning cylinder two ends connect existing transmission device, for example turning cylinder two ends are connected in a connecting rod, transmission device is connected in power set again, power set can be electric device (for example motor), pneumatic means (for example cylinder), hydraulic means (for example hydraulic cylinder), be motor in the present embodiment, traction link when motor work, connecting rod drives rotating shaft to rotate, deep bead is correspondingly closed or open.In the time that deep bead 42 is completely closed, windshield frame 41 and deep bead 42 form the structure identical with existing windbreak, in the time that deep bead is opened, form the structure of guiding ambient wind, deep bead 42 open the concrete condition setting according to power station, the maximum position that deep bead can be opened and the angle of the initial closing position of deep bead are ± 90 °.
As shown in Figure 4, the Air-Cooling Island of the tool venetian blind type windbreak that embodiment 2 provides, itself and embodiment 1 something in common repeat no more, difference is, windshield frame 41 extends to air cooling platform below, the windshield frame 41 that is positioned at air cooling platform below is also provided with deep bead 42, in Fig. 4 taking four deep beads 42 as example.This device can prevent that cold air that the ambient wind of air cooling platform below should enter blower fan from, from horizontal direction tow out, reducing the intake of blower fan, and then reducing the heat transfer effect of air cooling heat radiator unit 3.More, because deep bead 42 is venetian blind type, therefore can carry out controllable register angle according to the ambient wind of different wind directions and wind speed, ambient wind is guided, increase the intake of blower fan.
The Air-Cooling Island of the tool venetian blind type windbreak that embodiment 3 provides, the difference of itself and embodiment 1,2 is, the closure of every deep bead 42 is independent control with opening, in the present embodiment, every rotating shaft connects respectively a connecting rod, every connecting rod connects a motor separately, and each motor rotates by deep bead of a connecting rod control.Certainly, for simplified structure, can adopt other modes, control respectively every deep bead and be as the criterion to realize.As shown in Figure 3, four deep beads 42 by order from top to bottom rotate respectively+90 ° ,+45 ° ,+30 °, 0 ° (being closing position); As shown in Figure 4, eight deep beads by by down under order half-twist, 45 °, 30 °, 0 ° ,-90 ° ,-45 ° ,-30 ° and 0 ° respectively.The independent control of each deep bead 42 opens and closes, and can more effectively guide ambient wind, reduces ambient wind and around deep bead, carries out sinuous flow, affects the heat transfer effect of air cooling heat radiator unit.
The abat-vent of the tool venetian blind type deep bead that above-described embodiment 1,2,3 provides, the thickness of being arranged to close rotating shaft of its deep bead can also be greater than to the thickness away from rotating shaft, for example, the rotating shaft of deep bead is positioned at one end of deep bead, and the cross section of deep bead is triangle; The rotating shaft of deep bead is positioned at the central authorities of deep bead, and the cross section of deep bead is fusiformis.The deep bead of this shape can reduce and weaken the eddy current producing when ambient wind is skimmed over, and further improves the heat transfer effect of air condenser.
The Air-Cooling Island of the tool venetian blind type windbreak that above-described embodiment 1,2,3 provides, a control module can be set, this control module can be personal computer or single-chip microcomputer, user is parameters in control module, transmit control signal to drive unit by the drive circuit in control module, drive unit is controlled corresponding motor work again, rotates thereby control deep bead.Thereby make this air cooling device realize automation control, operate more easy.More can in control module, add an information storage unit, by according to the passing wind direction in this area, wind speed information and the corresponding deep bead rotational angle information storage arranging in this information storage unit, make the deep bead control of this Air-Cooling Island realize unmanned control, reduce user's workload.
Claims (10)
1. the Air-Cooling Island of a tool venetian blind type windbreak, comprise air cooling platform, column, air cooling heat radiator unit, blower fan, described air cooling platform bottom is fixed with column, described air cooling heat radiator unit is located on air cooling platform, blower fan is located at the below of every air cooling heat radiator unit, it is characterized in that, described air cooling platform surrounding is provided with several windshield frames, and each described windshield frame is provided with venetian blind type deep bead.
2. the Air-Cooling Island of tool venetian blind type windbreak as claimed in claim 1, is characterized in that, the rotating shaft of described venetian blind type deep bead is horizontal direction.
3. the Air-Cooling Island of tool venetian blind type windbreak as claimed in claim 1, it is characterized in that, described windshield frame extends to air cooling platform below, the part that described windshield frame is positioned at air cooling platform below is also provided with venetian blind type deep bead, and windshield frame and the deep bead of described air cooling platform below form air intake passage.
4. the Air-Cooling Island of the tool venetian blind type windbreak as described in claim 1 or 2 or 3, it is characterized in that, the rotating shaft connection for transmission device of described deep bead, described transmission device is connected in power set, and described power set are by the rotation of transmission device and rotating shaft control deep bead.
5. the Air-Cooling Island of tool venetian blind type windbreak as claimed in claim 4, is characterized in that, described power set are pneumatic means, hydraulic means or electric device.
6. the Air-Cooling Island of tool venetian blind type windbreak as claimed in claim 5, is characterized in that, the rotation of described every deep bead is independently controlled.
7. the Air-Cooling Island of tool venetian blind type windbreak as claimed in claim 6, is characterized in that, the closing position of described deep bead and the angle of maximum open position are ± 90 °.
8. the Air-Cooling Island of tool venetian blind type windbreak as claimed in claim 1, is characterized in that, described deep bead is greater than the thickness away from rotating shaft near the thickness of rotating shaft.
9. the Air-Cooling Island of tool venetian blind type windbreak as claimed in claim 4, is characterized in that, described power set are connected in drive unit and by drive unit control, described drive unit by control module by drive circuit control.
10. the Air-Cooling Island of tool venetian blind type windbreak as claimed in claim 9, is characterized in that, described control module is personal computer or single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420020538.4U CN203657538U (en) | 2014-01-14 | 2014-01-14 | Air cooling island comprising louver type wind walls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420020538.4U CN203657538U (en) | 2014-01-14 | 2014-01-14 | Air cooling island comprising louver type wind walls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203657538U true CN203657538U (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420020538.4U Expired - Fee Related CN203657538U (en) | 2014-01-14 | 2014-01-14 | Air cooling island comprising louver type wind walls |
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| Country | Link |
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| CN (1) | CN203657538U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062925A (en) * | 2017-01-18 | 2017-08-18 | 中国神华能源股份有限公司 | Heat abstractor and the air cooling system with it |
| CN109927147A (en) * | 2019-03-27 | 2019-06-25 | 南京林业大学 | A kind of air door closing device for Solution on Air Forming Equipment |
| CN111895802A (en) * | 2020-07-20 | 2020-11-06 | 内蒙古工业大学 | Diversion pressurization downward extension wind-break wall applied to direct air cooling platform |
| 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 |
-
2014
- 2014-01-14 CN CN201420020538.4U patent/CN203657538U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062925A (en) * | 2017-01-18 | 2017-08-18 | 中国神华能源股份有限公司 | Heat abstractor and the air cooling system with it |
| CN109927147A (en) * | 2019-03-27 | 2019-06-25 | 南京林业大学 | A kind of air door closing device for Solution on Air Forming Equipment |
| CN111895802A (en) * | 2020-07-20 | 2020-11-06 | 内蒙古工业大学 | Diversion pressurization downward extension wind-break wall applied to direct air cooling platform |
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20170114 |