CN205156661U - Air cooling fan beam wind guiding device - Google Patents
Air cooling fan beam wind guiding device Download PDFInfo
- Publication number
- CN205156661U CN205156661U CN201520876948.3U CN201520876948U CN205156661U CN 205156661 U CN205156661 U CN 205156661U CN 201520876948 U CN201520876948 U CN 201520876948U CN 205156661 U CN205156661 U CN 205156661U
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- Prior art keywords
- kuppe
- air cooling
- blower fan
- beam wind
- guiding device
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Abstract
The utility model discloses an air cooling fan beam wind guiding device includes: kuppe, kuppe support and tubulose ring. The utility model discloses a round platform shape kuppe that a handle is big is set up in fan bottom, when no beam wind or beam wind are more weak, the intake that improves air cooling island fan can be shown, when having the beam wind, not only can be the leading -in fan of beam wind, increase the fan delivery, can also increase the pressure of fan negative pressure region, reduce the beam wind and to the adverse effect of air cooling condenser fan, convert the beam wind that is harmful to be favorable to the fan power wind to improve the heat transfer efficiency of air cooling condenser.
Description
Technical field
The utility model relates to thermal power generation energy source and power technical field, particularly a kind of air cooling blower fan beam wind guiding device.
Background technology
Below background of related of the present utility model is described, but these explanations might not form prior art of the present utility model.
The contradiction of China North China, the rich coal in northwest and lack of water is outstanding day by day, and power plant adopts Direct Air-Cooling Technology to become inexorable trend.Direct Air-Cooling Technology, economize on water with it, floor space is little, small investment, more environmental protection come into one's own and be used widely, the installed capacity of current China has reached more than 100,000,000 kilowatts.Direct Air-cooled Unit is using surrounding air as the cooling medium of turbine discharge, traditional water-cooled condenser is replaced with air cooling tubes condenser, carry out the heat exchange of air and steam, every platform air cooling tubes condenser all configures a large-scale blower fan, several air cooling tubes condensers and blower fan form air cooling platform, i.e. an Air-Cooling Island, and Air-Cooling Island is apart from ground distance 40 meters, be exposed to completely in atmospheric environment, be very easily subject to the impact of environmental factor.
As shown in Figure 1, the steam that the steam turbine of generator unit is discharged enters steam distribution pipeline 10, steam is sent into finned-tube bundle 20 by steam distribution pipeline 10, fan air drum 30 is housed bottom air cooling tubes condenser, air cooling blower fan 60 aspirates the cold air bottom Air-Cooling Island, sends in air cooling tubes condenser unit by impeller, carries out Heat of Formation air after heat exchange with finned-tube bundle 20, be discharged into aerial, the steam simultaneously flowing through finned-tube bundle 20 is caught a cold and is become condensed water.When beam wind 80 flows through Air-Cooling Island, can have an impact to Air-Cooling Island fan airflow, negative pressure region 70 is formed in air cooling blower fan 60 import department, reduce the air mass flow that air cooling blower fan 60 flows to air cooling tubes condenser, affect air cooling tubes condenser heat transfer efficiency, worsen runnability, bring harm to the safe operation of Air-cooled Unit.Simultaneously, the hot-air of discharging at Air-Cooling Island edge is sucked back in gas trap again by air cooling blower fan 60 when coming downwards to air cooling blower fan 60 porch along windbreak, form hot air reflux, hot air reflux will reduce the heat transfer efficiency of air cooling tubes condenser, the back pressure of steam turbine is raised, affects the normal operation of unit.The beam wind of larger kinetic energy also can hinder front-seat air cooling unit hot blast to spread, and even produces and pours in down a chimney phenomenon.
Therefore, a kind of can solution because beam wind to cause the solution of the problem of the heat transfer efficiency difference of air cooling blower fan to the adverse effect of air cooling blower fan is needed in prior art.
Utility model content
The purpose of this utility model is to propose a kind of air cooling blower fan beam wind guiding device, can reduce the adverse effect of nature beam wind to air cooling tubes condenser blower fan, improves the heat transfer efficiency of air cooling tubes condenser.
According to air cooling blower fan beam wind guiding device of the present utility model, comprising: kuppe, kuppe support and tubular ring, wherein,
Described tubular ring is arranged on the bottom of the air duct protection network built-in beam of air cooling blower fan regularly;
Described kuppe is the truncated cone-shaped structure that top handle is large, and the edge at described kuppe top is arranged on the bottom of described tubular ring regularly;
Described kuppe support is set in inner side or the outside of described kuppe regularly, and top and the described tubular ring of described kuppe support are fixed.
Preferably, the lateral surface of described kuppe is guide face, and the angle between the cross section of described guide face and described kuppe is 25 ° ~ 80 °.
Preferably, the cross section of described kuppe is: circular or polygon; Described polygon at least comprises three limits.
Preferably, the height of described kuppe is 1.5m ~ 5m;
The cross section of described kuppe is circular; Described kuppe top diameter is 3m ~ 9m, base diameter is 4m ~ 11m; Or,
The cross section of described kuppe is polygon; The circumscribed circle diameter at described kuppe top is 3m ~ 9m, the circumscribed circle diameter of bottom is 4m ~ 11m.
Preferably, the quantity of described beam wind guiding device is identical with the quantity of described air cooling blower fan.
Preferably, described kuppe is sheet metal, nonmetal plate, building film material or industrial base cloth.
Preferably, described kuppe is integrated, or described kuppe is combined by least two deflectors.
Preferably, described kuppe is combined by least eight trapezoidal deflectors.
Preferably, described tubular ring is: tubular ring or tubular polygonal; Described tubular polygonal at least comprises three limits.
Preferably, described kuppe support comprises at least three poles, and one end and the described tubular ring of described pole are fixed together.
Comprise according to air cooling blower fan beam wind guiding device of the present utility model: kuppe, kuppe support and tubular ring.By arranging handle large truncated cone-shaped kuppe in top bottom blower fan, without beam wind or beam wind more weak time, the intake of Air-Cooling Island blower fan can be significantly improved; When there being beam wind, not only beam wind can be imported blower fan, increases fan delivery, the pressure in blower negative pressure region can also be increased, reduce beam wind to the adverse effect of air cooling tubes condenser blower fan, harmful beam wind is converted to the power wind being conducive to blower fan, thus improves the heat transfer efficiency of air cooling tubes condenser.
Accompanying drawing explanation
By the detailed description of the invention part provided referring to accompanying drawing, feature and advantage of the present utility model will become easier to understand, in the accompanying drawings:
Fig. 1 illustrates in prior art when having beam wind, the air motion track schematic diagram of air cooling blower fan;
Fig. 2 illustrates the scheme of installation according to air cooling blower fan beam wind guiding device of the present utility model;
Fig. 3 illustrates the schematic diagram according to air cooling blower fan beam wind guiding device of the present utility model;
When Fig. 4 is shown with beam wind, according to the air motion track schematic diagram of air cooling blower fan beam wind guiding device of the present utility model;
Fig. 5 be illustrate without beam wind or beam wind more weak time, according to the air motion track schematic diagram of air cooling blower fan beam wind guiding device of the present utility model.
Detailed description of the invention
With reference to the accompanying drawings illustrative embodiments of the present utility model is described in detail.Be only for demonstration object to the description of illustrative embodiments, and be never the restriction to the utility model and application or usage.
The utility model, by installing beam wind guiding device 50 additional bottom air cooling blower fan 60, can increase the pressure of negative pressure region 70, weaken the adverse effect of beam wind 80 pairs of air cooling blower fans 60, improves air mass flow, improves the heat transfer efficiency of air cooling unit.
The technical solution of the utility model is described in detail below in conjunction with accompanying drawing 2 ~ 5.As shown in Figure 2,3, comprise according to air cooling blower fan beam wind guiding device 50 of the present utility model: kuppe 52, kuppe support 53 and tubular ring 51.Tubular ring 51 is arranged on the bottom of the protection network built-in beam 31 of the air duct 30 of air cooling blower fan 60 regularly; Kuppe 52 is the truncated cone-shaped structure that top handle is large, and the edge at kuppe 52 top is arranged on the bottom of tubular ring 51 regularly, and the lateral surface of kuppe 52 is guide face; Kuppe support 53 is set in inner side or the outside of kuppe 52 regularly, and top and the tubular ring 51 of kuppe support 53 are fixed.
When there being beam wind, as shown in Figure 4, install air cooling blower fan beam wind guiding device 50 bottom air cooling blower fan 60 additional, the negative pressure region 70 bottom air cooling blower fan 60 can move down.Beam wind 80 is imported in the air duct of air cooling blower fan 60 by the guide face of beam wind guiding device 50.The air-flow that beam wind guiding device 50 imports is divided into two kinds: a kind of is import through guide face and enter the air-flow in air cooling unit, and this air-flow adds the air quantity of air cooling blower fan 60, thus makes the beam wind 80 be harmful to become useful wind; Another kind imports through guide face and flows into the air-flow of negative pressure region 70, and this part air-flow constantly can supplement and be entrainmented by beam wind 80 the negative pressure region air-flow walked, and increases the pressure of negative pressure region, reduces the loss that air cooling blower fan 60 withdrawing air produces negative pressure region.In the utility model, the guide face of beam wind band angle flows to the blade of air cooling blower fan 60, produces booster action, also can reduce the energy consumption of air cooling blower fan 60 to the impeller of air cooling blower fan 60.
When in environment without beam wind or beam wind weak time, install air cooling blower fan beam wind guiding device 50 additional and can play and increase the effect of air quantity, as shown in Figure 5.Beam wind guiding device 50 is truncated cone-shaped structures, and its base diameter is large, top diameter is little.In Wen, the principle of pipe is narrowed from the width by gas channel, and gas flow rate is accelerated, so in Wen pipe outlet near form the negative pressure region of a similar vacuum.In the utility model, when air cooling blower fan 60 works, the C region of air-flow bottom beam wind guiding device 50 that air cooling blower fan 60 aspirates flows to the B region at beam wind guiding device 50 top, meet venturi tube structure, produce Venturi effect, and then between the B region and the inner side of air duct at beam wind guiding device 50 top, form the negative pressure region of a similar vacuum, as the a-quadrant in Fig. 5.A-quadrant can produce suction-operated to neighbouring air-flow, is sucked in air duct by the air-flow in environment, and the air quantity sucking air cooling blower fan 60 is increased.
Tubular ring 51 is for fixed lateral wind guiding device 50, and it can be tubular ring or tubular polygonal; Wherein tubular polygonal at least comprises three limits.
Kuppe 52 is for importing the wind in air in air cooling blower fan 60, and the cross section of kuppe 52 can be circular or polygon; Wherein, polygon at least comprises three limits.The cross section of kuppe 52 is larger, and the wind imported in air cooling blower fan 60 by kuppe 52 is larger, and the heat transfer efficiency of air cooling blower fan 60 is higher.Because the fan air drum 30 of air cooling blower fan 60 is circular configurations, therefore according to preferred embodiment of the present utility model, the cross section of kuppe 52 is circular.Kuppe 52 can be integrated, and such as kuppe 52 is truncated cone-shaped structures of integration; Certainly, kuppe 52 also can be combined by least two deflectors, and such as, kuppe 52 is combined into complete truncated cone-shaped structure by four quadrant platform shape deflectors, or kuppe 52 is combined by multiple trapezoidal deflector.According to preferred embodiment of the present utility model, kuppe 52 is combined by least eight trapezoidal deflectors.
The height of kuppe 52 is higher, and the distance on kuppe 52 lower end and ground is less, and the air quantity that can suck air cooling blower fan 60 is less, and therefore the height of kuppe 52 should not be too high.Meanwhile, the height of kuppe 52 can not be too small, otherwise the air quantity imported in air duct 30 through guide face is less, not obvious to the pressurized effect of negative pressure region 70, thus cannot reduce the loss that air cooling blower fan 60 withdrawing air produces negative pressure region; In addition, if the height of kuppe 52 is too small, when in environment without beam wind or beam wind weak time, the suction-operated of a-quadrant to neighbouring air-flow is less, and the air quantity imported due to the suction-operated of a-quadrant in air duct 30 also can reduce.According to preferred embodiment of the present utility model, the height of kuppe 52 is 1.5m ~ 5m.Further preferably, if the cross section of kuppe 52 is circular, kuppe 52 top diameter is 3m ~ 9m, base diameter is 4m ~ 11m; If the cross section of kuppe 52 is polygon, the circumscribed circle diameter at kuppe 52 top is 3m ~ 9m, the circumscribed circle diameter of bottom is 4m ~ 11m.
Angle between the guide face of kuppe 52 and the cross section of kuppe 52 is unsuitable excessive, otherwise the suction-operated of a-quadrant to neighbouring air-flow is less, and the air quantity imported due to the suction-operated of a-quadrant in air duct 30 also can reduce.Angle between the guide face of kuppe 52 and the cross section of kuppe 52 is less, and the air quantity sucked in air cooling blower fan 60 through kuppe 52 is larger.When kuppe 52 top size is fixed, this angle is less, and kuppe 52 bottom area is larger.But, Air-Cooling Island is the air cooling platform rearranged in a certain order by several air cooling tubes condensers and air cooling blower fan 60, the bottom area of each air cooling blower fan 60 correspondence is limited, and therefore, the angle between the guide face of kuppe 52 and the cross section of kuppe 52 cannot be infinitely small.According to preferred embodiment of the present utility model, the angle between the guide face of kuppe 52 and the cross section of kuppe 52 is 25 ° ~ 80 °.
Kuppe support 53 is for fixing kuppe 52, and such as, kuppe support 53 comprises at least three poles, and one end and the tubular ring 51 of every root pole are fixed together.Preferably, kuppe support 53 comprises eight poles, as shown in Figure 3.
According to preferred embodiment of the present utility model, kuppe 52 is sheet metal, nonmetal plate, building film material or industrial base cloth.Preferably, the quantity of beam wind guiding device 50 is identical with the quantity of air cooling blower fan 60.
Compared with prior art compare, the utility model by arranging handle large truncated cone-shaped kuppe in top bottom blower fan, without beam wind or beam wind more weak time, the intake of Air-Cooling Island blower fan can be significantly improved; When there being beam wind, not only beam wind can be imported blower fan, increases fan delivery, the pressure in blower negative pressure region can also be increased, reduce beam wind to the adverse effect of air cooling tubes condenser blower fan, harmful beam wind is converted to the power wind being conducive to blower fan, thus improves the heat transfer efficiency of air cooling tubes condenser.
Although be described the utility model with reference to illustrative embodiments, but be to be understood that, the utility model is not limited in literary composition the detailed description of the invention described in detail and illustrate, when not departing from claims limited range, those skilled in the art can make various change to described illustrative embodiments.
Claims (10)
1. an air cooling blower fan beam wind guiding device, is characterized in that comprising: kuppe, kuppe support and tubular ring, wherein,
Described tubular ring is arranged on the bottom of the air duct protection network built-in beam of air cooling blower fan regularly;
Described kuppe is the truncated cone-shaped structure that top handle is large, and the edge at described kuppe top is arranged on the bottom of described tubular ring regularly;
Described kuppe support is set in inner side or the outside of described kuppe regularly, and top and the described tubular ring of described kuppe support are fixed.
2. air cooling blower fan beam wind guiding device as claimed in claim 1, it is characterized in that, the lateral surface of described kuppe is guide face, and the angle between the cross section of described guide face and described kuppe is 25 ° ~ 80 °.
3. air cooling blower fan beam wind guiding device as claimed in claim 2, it is characterized in that, the cross section of described kuppe is: circular or polygon; Described polygon at least comprises three limits.
4. air cooling blower fan beam wind guiding device as claimed in claim 3, it is characterized in that, the height of described kuppe is 1.5m ~ 5m;
The cross section of described kuppe is circular; Described kuppe top diameter is 3m ~ 9m, base diameter is 4m ~ 11m; Or,
The cross section of described kuppe is polygon; The circumscribed circle diameter at described kuppe top is 3m ~ 9m, the circumscribed circle diameter of bottom is 4m ~ 11m.
5. air cooling blower fan beam wind guiding device as claimed in claim 1, it is characterized in that, the quantity of described beam wind guiding device is identical with the quantity of described air cooling blower fan.
6. air cooling blower fan beam wind guiding device as claimed in claim 1, it is characterized in that, described kuppe is sheet metal, nonmetal plate, building film material or industrial base cloth.
7. air cooling blower fan beam wind guiding device as claimed in claim 1, it is characterized in that, described kuppe is integrated, or described kuppe is combined by least two deflectors.
8. air cooling blower fan beam wind guiding device as claimed in claim 7, it is characterized in that, described kuppe is combined by least eight trapezoidal deflectors.
9. air cooling blower fan beam wind guiding device as claimed in claim 1, it is characterized in that, described tubular ring is: tubular ring or tubular polygonal; Described tubular polygonal at least comprises three limits.
10. air cooling blower fan beam wind guiding device as claimed in claim 1, it is characterized in that, described kuppe support comprises at least three poles, and one end and the described tubular ring of described pole are fixed together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520876948.3U CN205156661U (en) | 2015-11-05 | 2015-11-05 | Air cooling fan beam wind guiding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520876948.3U CN205156661U (en) | 2015-11-05 | 2015-11-05 | Air cooling fan beam wind guiding device |
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| CN205156661U true CN205156661U (en) | 2016-04-13 |
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| CN201520876948.3U Expired - Fee Related CN205156661U (en) | 2015-11-05 | 2015-11-05 | Air cooling fan beam wind guiding device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928378A (en) * | 2016-06-22 | 2016-09-07 | 国网山西省电力公司电力科学研究院 | Air cooling element, provided with horizontal wind preventing flow-guiding device, of direct air cooling unit |
| CN106595331A (en) * | 2017-01-05 | 2017-04-26 | 华北电力大学（保定） | Strong cooling direct air-cooling condenser radiating unit |
| CN108088304A (en) * | 2018-01-18 | 2018-05-29 | 西安热工研究院有限公司 | The air guide device of horizontally disposed small-sized air cooling tower in a kind of radiator tower |
| WO2019180581A1 (en) * | 2018-03-19 | 2019-09-26 | Ormat Technolgies Inc. | Wind guiding vane apparatus |
-
2015
- 2015-11-05 CN CN201520876948.3U patent/CN205156661U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928378A (en) * | 2016-06-22 | 2016-09-07 | 国网山西省电力公司电力科学研究院 | Air cooling element, provided with horizontal wind preventing flow-guiding device, of direct air cooling unit |
| CN106595331A (en) * | 2017-01-05 | 2017-04-26 | 华北电力大学（保定） | Strong cooling direct air-cooling condenser radiating unit |
| WO2018126694A1 (en) * | 2017-01-05 | 2018-07-12 | 华北电力大学 | Strong cooling direct air-cooled condenser radiating unit and air-cooled island |
| US11175096B2 (en) | 2017-01-05 | 2021-11-16 | North China Electric Power University | Strong cooling direct air-cooled condenser radiating unit and air-cooled island |
| CN108088304A (en) * | 2018-01-18 | 2018-05-29 | 西安热工研究院有限公司 | The air guide device of horizontally disposed small-sized air cooling tower in a kind of radiator tower |
| CN108088304B (en) * | 2018-01-18 | 2024-03-08 | 西安热工研究院有限公司 | Air guiding device of small air cooling tower horizontally arranged in radiator tower |
| 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 |
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Legal Events
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| 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: 20160413 Termination date: 20181105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |