CN2903889Y - Wenshi hollow ring for reducing airflow speed - Google Patents
Wenshi hollow ring for reducing airflow speed Download PDFInfo
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- CN2903889Y CN2903889Y CN 200520047799 CN200520047799U CN2903889Y CN 2903889 Y CN2903889 Y CN 2903889Y CN 200520047799 CN200520047799 CN 200520047799 CN 200520047799 U CN200520047799 U CN 200520047799U CN 2903889 Y CN2903889 Y CN 2903889Y
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Abstract
The utility model discloses a Venturi Wind tunnel which comprises a hollow circle body, which is characterized in that the middle of the body is a straight segment, the upper of the body is the proliferation segment with a cone angle. The utility model has a rational structure and is cleverly conceived; the straight part can be used as installation segment of the fan, which plays the rectifier role and reduces turbulence phenomenon and airflow energy loss; the proliferation segment increases the actual area of the tuyere, to reduce the air flow rate of the tuyere and the flow kinetic energy loss, which possesses high industrial value.
Description
Technical field:
The utility model belongs to the cooling device technical field, particularly relates to the device that reduces the cooling tower air velocity in the cooling tower.
Background technology:
The existing so far one-hundred-year history of cooling tower development, the wind trunk is as one of vitals of cooling tower, it act as: 1, utilize its diffusion profile, the air velocity of using cooling tower reduces, promptly reduce the dynamic pressure loss of air stream outlet, under the constant condition of power of motor, energy loss reduces, then effectively blower fan dynamic pressure and static pressure strengthen, and air quantity increases; 2, the damp-heat air that reduces or prevent to get rid of from cooling tower is back to the tower air inlet again, reenters in the tower.In traditional cooling tower, its apoplexy trunk structure generally includes two parts: 1, the converging transition of bottom; 2, the exhaust outlet straight section on top.But this kind wind trunk is unsatisfactory in design, its former because: wind trunk air outlet does not have the diffusion angle, and the air-flow of outlet can not reduce, so in fact its wind trunk has only rectified action, can only reduce the phenomenon of sinuous flow in the air-flow, and there is no actual effect for the dynamic pressure loss that reduces air stream outlet.
Summary of the invention:
The purpose of this utility model is, provide a kind of and can effectively overcome above-mentioned defective, reduce the effective venturi wind barrel of dynamic pressure loss of air stream outlet, for achieving the above object, the technical scheme that the utility model adopted is that a kind of venturi wind barrel is made up of the body of a hollow circular ring shape, it is characterized in that: the middle part of body is a straight section, and top is the diffuser that has cone angle.Owing to adopt such scheme, to be not difficult to draw as drawing a conclusion, the utility model is rational in infrastructure, is skillfully constructed, and the middle part straight section can be used as the blower fan construction section, and its straight section part more has rectified action, reduces the sinuous flow phenomenon and produces, and reduces the flowed energy loss; The diffuser on top increases actual air outlet area, effectively reduces its exit flow speed, and the airflow kinetic energy loss reduces, and has the industrial utilization of height.
Description of drawings:
Below in conjunction with drawings and Examples the utility model is described in further detail.
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
Among the figure, this venturi wind barrel mainly is made up of the body 10 of a hollow circular ring shape, and the top of body 10 is the diffuser 11 that has cone angle, and the middle part is a straight section 12, and the bottom is a converging transition 13.When air communication was crossed the wind trunk, the converging transition of its bottom can effectively reduce airflow field flow separation phenomenon on the corner, was difficult for forming the backflow whirlpool, had reduced the flowed energy loss; The middle part straight section can be used as the blower fan construction section, and its straight section part more has rectified action, reduces the sinuous flow phenomenon and produces, and reduces the flowed energy loss; The diffuser on top increases actual air outlet area, effectively reduces its exit flow speed, and the airflow kinetic energy loss reduces, and the cone angle of its diffuser can not be excessive, otherwise easily causes the segregation phenomenon of air-flow in the corner, forms the air-flow whirlpool.
Claims (1)
1, a kind of venturi wind barrel is made up of the body of a hollow circular ring shape, it is characterized in that: the middle part of body is a straight section, and top is the diffuser that has cone angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047799 CN2903889Y (en) | 2005-12-20 | 2005-12-20 | Wenshi hollow ring for reducing airflow speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047799 CN2903889Y (en) | 2005-12-20 | 2005-12-20 | Wenshi hollow ring for reducing airflow speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2903889Y true CN2903889Y (en) | 2007-05-23 |
Family
ID=38079304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520047799 Expired - Lifetime CN2903889Y (en) | 2005-12-20 | 2005-12-20 | Wenshi hollow ring for reducing airflow speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2903889Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042908A (en) * | 2010-12-31 | 2011-05-04 | 中国航天科技集团公司第六研究院第十一研究所 | High-reliability multiblade cold/hot air flow mixed spoiler |
-
2005
- 2005-12-20 CN CN 200520047799 patent/CN2903889Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042908A (en) * | 2010-12-31 | 2011-05-04 | 中国航天科技集团公司第六研究院第十一研究所 | High-reliability multiblade cold/hot air flow mixed spoiler |
| CN102042908B (en) * | 2010-12-31 | 2012-06-27 | 中国航天科技集团公司第六研究院第十一研究所 | High-reliability multiblade cold/hot air flow mixed spoiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070523 |
|
| EXPY | Termination of patent right or utility model |