CN205918647U - Reduce guiding device of fan inlet scoop resistance - Google Patents
Reduce guiding device of fan inlet scoop resistance Download PDFInfo
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- CN205918647U CN205918647U CN201620943506.0U CN201620943506U CN205918647U CN 205918647 U CN205918647 U CN 205918647U CN 201620943506 U CN201620943506 U CN 201620943506U CN 205918647 U CN205918647 U CN 205918647U
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- inlet scoop
- fan
- fixed plate
- guide plate
- guiding device
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Abstract
The utility model discloses a reduce guiding device of fan inlet scoop resistance, including fixed plate, guide plate, connecting piece, the fixed plate is the same with fan inlet scoop shape, the guide plate is for trapezoidal, the upper base side weld of guide plate connects the edge of fixed plate, the side welded fastening of adjacent guide plate, the fixed plate with the guide plate forms inverted -frustum -shaped, the side weld of going to the bottom of guide plate connects on the connecting piece to fix the outside in the fan inlet scoop through the connecting piece. The utility model provides a reduce guiding device of fan inlet scoop resistance according to the flow field of hydromechanical basic principle analysis fluid machinery and part, adopts fluid form guide plate, arranges in the fan inlet scoop, optimizes the flow field distribution that cold wind got into the inlet scoop, and reducible vibration makes the section duct resistance of fan inlet scoop reduce to improve fan operation efficiency, reduce the fan power consumption, reach energy -conserving purpose.
Description
Technical field
This utility model belongs to blower fan aid technical field and in particular to reducing the water conservancy diversion dress of fan induced draught mouth resistance
Put.
Background technology
When producing, boiler is its main production equipments, in order to ensure the normal operation of boiler, it usually needs join for thermal power plant
Cover multiple subsidiary engines, wherein coal pulverizer, pressure fan, primary air fan, air-introduced machine etc. is the necessary subsidiary engine of its normal operation again, this
The electric energy that a little blower fans consume, often account for thermal power plant from electricity consumption more than half.Therefore improve blower fan actual operating efficiency, to reduction
Blower fan power consumption, reduces discharging to energy saving for power plants and has very important effect.In fan operation, the inlet scoop of blower fan is arranged not only
Influence whether the operation pressure head of blower fan, and influence whether the systematicness of blower fan suction airflow, and then have influence on fan operation mistake
Noise and the operational efficiency of air draught that journey produces.This utility model utilizes Flow Field Calculation analysis software fluent and incorporation engineering is real
Border carries out numerical simulation and researchs and analyses to the flow field characteristic in air channel, improves the guiding device of blower fan, reduces the resistance of fan induced draught mouth
Power, improves fan efficiency.
Content of the invention
The technical problems to be solved in the utility model is to provide a kind of guiding device reducing fan induced draught mouth resistance, improves
The work efficiency of blower fan, reduces fan energy consumption.
This utility model solves above-mentioned technical problem by the following technical programs,
Reduce fan induced draught mouth resistance guiding device, including fixed plate, deflector, connector it is characterised in that
Described fixed plate is identical with fan induced draught mouth-shaped；
Described deflector is inverted trapezoidal,
The upper bottom edge of described deflector is welded on the edge of described fixed plate；
The side of described adjacent baffle is welded and fixed；
Described fixed plate and described deflector form inversed taper platform shape；
The bottom of described deflector is welded on connector, and is fixed on the outside of fan induced draught mouth by connector.
As optimization, the section of described deflector is inverse proportion function hyperbola；
As optimization, the area of described fixed plate is 0.8-1.5 times of described fan induced draught open area；
As optimization, described fixed plate is the side of 0.5-1 times of described fan induced draught mouth with a distance from described fan induced draught mouth
Length or diameter；
As optimization, the length of side of the bottom width of described deflector or a diameter of 0.2-0.6 times of described fan induced draught mouth
Or diameter.
This utility model provides a kind of guiding device reducing fan induced draught mouth resistance, according to hydromechanical ultimate principle
Analysis fluid machinery and the flow field of part, using flow morphology deflector, are arranged in fan induced draught mouth, optimize cold wind and enter air draught
The Flow Field Distribution of mouth, can reduce vibration, so that fan induced draught mouth section duct resistance is reduced, thus improving fan operation efficiency, reduce
Blower fan power consumption, reaches the purpose of energy-conservation.
Brief description
Fig. 1 is this utility model example structure schematic diagram；
Fig. 2 is this utility model embodiment air draught entrance Flow Field Distribution figure；
Fig. 3 is this utility model comparative example air draught entrance Flow Field Distribution figure.
Specific embodiment
With reference to the accompanying drawings and examples, explain content of the present utility model further.
Embodiment
As depicted in figs. 1 and 2, reduce the guiding device of fan induced draught mouth resistance, including fixed plate 2, deflector 3, connect
Part 4,
Described fixed plate 2 is identical with fan induced draught mouth 11 shape；
Described deflector 3 is inverted trapezoidal, and the section of described deflector 3 is inverse proportion function hyperbola；
The upper bottom edge of described deflector 3 is welded on the edge of described fixed plate 2；
The side of described adjacent baffle 3 is welded and fixed；
Described fixed plate 2 and described deflector 3 form inversed taper platform shape；
The bottom of described deflector 3 is welded on connector 4, and is fixed on the air draught of fan air channel 1 by connector 4
The outside of mouth 11；The length of side of the described fan induced draught mouth of 0.2-0.6 times of bottom width b or a diameter of of described deflector or straight
Footpath；
When the inlet scoop 11 of blower fan is square inlet scoop, described fixed plate 2 is with a distance from described fan induced draught mouth 11
Length of side a for 0.5-1 times of described fan induced draught mouth；When the inlet scoop of blower fan is circular inlet scoop, described fixed plate 2 is from described
The distance of fan induced draught mouth 11 is the diameter of 0.5-1 times of described fan induced draught mouth；
The area of described fixed plate 2 is 0.8-1.5 times of described fan induced draught mouth 11 area.
Inlet scoop inlet air Flow Field Distribution is shown in Fig. 2, and after shown fan operation, the wind of suction passes through the inlet scoop of fan air channel 1
11 and above-mentioned guiding device enter, blocked due to above the inlet scoop 11 of fan air channel 1, improve suck wind kinetic energy, plus
Speed sucks the motion of wind.Simultaneously because the spacing of inlet scoop 11 and above-mentioned guiding device is narrower, suck speed difference between the wind of wind
Little, the friction loss therefore sucking between wind is also little, also avoids the friction sucking between wind to cause inlet scoop to vibrate simultaneously, causes energy
Loss.Further, deflector is inverse proportion function hyperbola, further shorten the movement travel that interior outside sucks wind,
So that the suction wind velocity difference in interior outside reduces further, fan induced draught mouth section duct resistance is made to reduce, thus improving blower fan fortune
Line efficiency, reduces blower fan power consumption, reaches the purpose of energy-conservation.
Comparative example
The inlet scoop of conventional blower is to open wide setting.Air draught entrance Flow Field Distribution is shown in Fig. 3, after shown fan operation, sucks
The wind fan induced draught mouth that passes through to open wide enter, because air draught open area is big, and the fan linear velocity in inlet scoop centre
Low, the suction wind speed resulting in inlet scoop centre is slow, reduces the kinetic energy sucking wind；Due to sucking wind at inlet scoop
Wind speed is inconsistent, leads to produce frictional dissipation energy between the suction wind at inlet scoop, inlet scoop can be caused simultaneously to vibrate, enter
One step increased the loss of energy.
Claims (5)
1. reduce fan induced draught mouth resistance guiding device, including fixed plate, deflector, connector it is characterised in that
Described fixed plate is identical with fan induced draught mouth-shaped；
Described deflector is inverted trapezoidal,
The upper bottom edge of described deflector is welded on the edge of described fixed plate；
The side of described adjacent baffle is welded and fixed；
Described fixed plate and described deflector form inversed taper platform shape；
The bottom of described deflector is welded on connector, and is fixed on the outside of fan induced draught mouth by connector.
2. guiding device as claimed in claim 1 is it is characterised in that the section of described deflector is inverse proportion function hyperbola
Shape.
3. guiding device as claimed in claim 1 is it is characterised in that the area of described fixed plate is described fan induced draught open area
0.8-1.5 times.
4. guiding device as claimed in claim 1 is it is characterised in that described fixed plate is with a distance from described fan induced draught mouth
The length of side of 0.5-1 times of described fan induced draught mouth or diameter.
5. guiding device as claimed in claim 1 is it is characterised in that the bottom width of described deflector or a diameter of 0.2-
The length of side of 0.6 times of described fan induced draught mouth or diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620943506.0U CN205918647U (en) | 2016-08-26 | 2016-08-26 | Reduce guiding device of fan inlet scoop resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620943506.0U CN205918647U (en) | 2016-08-26 | 2016-08-26 | Reduce guiding device of fan inlet scoop resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205918647U true CN205918647U (en) | 2017-02-01 |
Family
ID=57869916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620943506.0U Active CN205918647U (en) | 2016-08-26 | 2016-08-26 | Reduce guiding device of fan inlet scoop resistance |
Country Status (1)
| Country | Link |
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| CN (1) | CN205918647U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052020A (en) * | 2017-06-05 | 2017-08-18 | 郝剑波 | A kind of collecting machine of air bell introducing-type |
| WO2019127855A1 (en) * | 2017-12-27 | 2019-07-04 | 珠海格力电器股份有限公司 | Heat exchange assembly and heat exchange device |
| CN111603124A (en) * | 2020-05-07 | 2020-09-01 | 海信(广东)厨卫系统有限公司 | A load-bearing structure for dish washer and dish washer thereof |
| CN112412879A (en) * | 2020-11-20 | 2021-02-26 | 西安热工研究院有限公司 | Inlet air duct flow guiding device for primary fan of air feeder |
| CN112733464A (en) * | 2020-11-10 | 2021-04-30 | 苏州西热节能环保技术有限公司 | Method for eliminating flue vibration of inlet and outlet of induced draft fan based on flow field optimization |
-
2016
- 2016-08-26 CN CN201620943506.0U patent/CN205918647U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052020A (en) * | 2017-06-05 | 2017-08-18 | 郝剑波 | A kind of collecting machine of air bell introducing-type |
| CN107052020B (en) * | 2017-06-05 | 2023-06-27 | 郝剑波 | Induced draft device of air flow cover leading-in type |
| WO2019127855A1 (en) * | 2017-12-27 | 2019-07-04 | 珠海格力电器股份有限公司 | Heat exchange assembly and heat exchange device |
| US11280348B2 (en) | 2017-12-27 | 2022-03-22 | Gree Electric Appliances, Inc. Of Zhuhai | Heat exchange assembly and heat exchange device |
| CN111603124A (en) * | 2020-05-07 | 2020-09-01 | 海信(广东)厨卫系统有限公司 | A load-bearing structure for dish washer and dish washer thereof |
| CN112733464A (en) * | 2020-11-10 | 2021-04-30 | 苏州西热节能环保技术有限公司 | Method for eliminating flue vibration of inlet and outlet of induced draft fan based on flow field optimization |
| CN112412879A (en) * | 2020-11-20 | 2021-02-26 | 西安热工研究院有限公司 | Inlet air duct flow guiding device for primary fan of air feeder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 330096 426 Jingdong Avenue, Nanchang hi tech Development Zone, Jiangxi Patentee after: China Electric Power Construction Group Jiangxi Electric Power Design Institute Co., Ltd. Address before: 330096 426 Jingdong Avenue, Nanchang high tech Development Zone, Jiangxi Patentee before: Jiangxi Electric Power Design Institute |
|
| CP03 | Change of name, title or address |