CN104329325A - Flow stabilizing device for air intake of fan - Google Patents
Flow stabilizing device for air intake of fan Download PDFInfo
- Publication number
- CN104329325A CN104329325A CN201410567749.4A CN201410567749A CN104329325A CN 104329325 A CN104329325 A CN 104329325A CN 201410567749 A CN201410567749 A CN 201410567749A CN 104329325 A CN104329325 A CN 104329325A
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- flow
- fan
- honeycomb rectifier
- blower fan
- pipe
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Abstract
The invention relates to a flow stabilizing device for air intake of a fan. The flow stabilizing device structurally comprises a honeycomb type flow adjusting device, a flow inlet pipe, a converging pipe and a flow outlet pipe, wherein the honeycomb type flow adjusting device is fixedly welded in the flow inlet pipe, and is positioned at the right side of the flow inlet pipe, the end surface of the honeycomb type flow adjusting device is provided with a plurality of through holes, the converging pipe is positioned at the left side of the honeycomb type flow adjusting device, one end of the converging pipe is connected with the flow inlet pipe, the other end of the converging pipe is connected with the flow outlet pipe, and the flow outlet pipe is connected with an inlet of the fan. The flow stabilizing device has the advantages that the tangential and normal speeds of air flow can be simultaneously adjusted, so the uniformity of a flow field is greatly improved; the adverse effect on the fan by the turbulence due to the air flow is avoided; as the flow through cross section is increased, the flow speed is greatly reduced, the pressure loss of the air flow due to flow adjusting is reduced, and the pressure loss is at least reduced by 90%; the pressure at the inlet of the fan is effectively improved, and the property of the fan is improved.
Description
Technical field
The present invention relates to a kind of constant-current stabilizer for blower fan air inlet, specifically in blower fan uses, to the combination unit that charge air flow is adjusted.
Background technique
Blower fan uses, and requires that air-flow incoming flow is very even, and velocity distribution, the pressure distribution in flow field all must be uniform and stable.Thus the performance of blower fan can be given full play to.Uneven air inlet, significantly can reduce the surge pressure of blower fan, improves the power consumption of blower fan.
In prior art
,fan inlet adopts honeycomb or spacing grid type rectifier to carry out uniform air flow.But because air-flow is flow at high speed at fan inlet, often while rectification, bring the larger pressure loss, i.e. the loss of energy.And the requirement of rectification is higher, the crushing brought is larger.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, thus provide a kind of constant-current stabilizer for blower fan air inlet, this combination unit greatly reduces the crushing brought thus while guarantee rectification effect; Effectively can to adjust air-flow, greatly to improve the uniformity in flow field; And effectively can reduce the impact of uneven charge air flow on fan performance.
According to technological scheme provided by the invention, a kind of structure of the constant-current stabilizer for blower fan air inlet comprises honeycomb rectifier, influent stream pipe, collapsible tube and outflow tube; Described honeycomb rectifier is weldingly fixed in influent stream pipe; Described honeycomb rectifier is positioned on the right of influent stream pipe, and described honeycomb rectifier end face is provided with some through holes, and described collapsible tube is positioned at the honeycomb rectifier left side, and collapsible tube one end is connected with influent stream pipe, and the other end is then connected with described outflow tube; Outflow tube is connected with fan inlet.
As a further improvement on the present invention, the external diameter of described honeycomb rectifier is identical with the internal diameter of influent stream pipe, is D1; The apothem of described through hole is d1, and described apothem d1 is between 0.01D1-0.03D1.
As a further improvement on the present invention, the width of described honeycomb rectifier is L1, and described width L1 is between 8d1-15d1.
As a further improvement on the present invention, the internal diameter of described outflow tube is D2, and described internal diameter D2 is between 0.2D2-0.5D2.
As a further improvement on the present invention, described collapsible tube is provided with contraction section, and the wall molded line of contraction section seamlessly transits, and the curve tangent by multistage is formed; The distance of honeycomb rectifier and contraction section is that L2, L2 are not less than 2D1.
As a further improvement on the present invention, described shape of through holes is regular hexagon, is not mutually communicated with between through hole.
Compared with the prior art the present invention has the following advantages:
The present invention adopts honeycomb rectifier, and the tangential and normal velocity of air-flow of can simultaneously adjusting, improves the uniformity in flow field greatly.Avoid air turbulence can have a negative impact to blower fan.On the other hand, by the setting of contraction section, the influent stream pipe diameter residing for honeycomb rectifier is made to be greater than exit duct diameter.Like this, the high flow rate gas of fan inlet is through honeycomb rectifier, and because cross-sectional flow area increases, flow velocity significantly reduces, thus the crushing that air-flow is produced because of rectification significantly reduces, and minimumly makes crushing reduction 90%.So more effectively improve the pressure at fan inlet place, thus improve the performance of blower fan.
Accompanying drawing explanation
Fig. 1 is the plan view of structure of the present invention.
Fig. 2 is the knot poplar schematic diagram of honeycomb rectifier.
Embodiment
Embodiment in is by reference to the accompanying drawings further described by the present invention below:
As shown in Figure 1 and Figure 2: according to technological scheme provided by the invention, a kind of structure of the constant-current stabilizer for blower fan air inlet comprises honeycomb rectifier 1, influent stream pipe 2, collapsible tube 3 and outflow tube 4.Described honeycomb rectifier 1 is fixed by welding in influent stream pipe 2.It is upstream that described honeycomb rectifier 1 is positioned on the right of influent stream pipe 2, and described honeycomb rectifier 1 end face is provided with some densely covered through hole 1-1, and described through hole 1-1 shape is regular hexagon, mutually completely cuts off, be not communicated with between through hole 1-1.Described collapsible tube 3 is positioned at honeycomb rectifier 1 left side and downstream, and collapsible tube 3 one end is connected with influent stream pipe 2, and the other end is then connected with described outflow tube 4.Finally, outflow tube 4 is connected with fan inlet.
The external diameter of described honeycomb rectifier 1 is identical with the internal diameter of influent stream pipe 2 is D1, and described D1 is: 200mm-1000mm.Honeycomb rectifier 1 end face, the apothem of regular hexagon through hole 1-1 is d1, between 0.01D1-0.03D1.The width of honeycomb rectifier 1 is L1, between 8d1-15d1.The internal diameter of described outflow tube 4 is D2, between 0.2D2-0.5D2.Described collapsible tube 3 is provided with contraction section 5, and the wall molded line of contraction section 5 seamlessly transits, and the curve tangent by multistage is formed.Honeycomb rectifier 1 is that L2, L2 are not less than 2D1 with the distance of contraction section 5.
Compared with the prior art the present invention has the following advantages:
The present invention adopts honeycomb rectifier 1, and the tangential and normal velocity of air-flow of can simultaneously adjusting, greatly improves the uniformity in flow field, avoid air turbulence can have a negative impact to blower fan.On the other hand, by the setting of contraction section, influent stream pipe 2 diameter residing for honeycomb rectifier 1 is made to be greater than outflow tube 4 diameter.Like this, the high flow rate gas of fan inlet is when through honeycomb rectifier 1, and because cross-sectional flow area increases, flow velocity significantly reduces, thus the crushing that air-flow is produced because of rectification significantly reduces, and the minimum crushing that makes reduces 90%.So more effectively improve the pressure at fan inlet place, thus improve the performance of blower fan.
When disorderly air-flow is by this constant-current stabilizer, first through honeycomb rectifier 1.Because influent stream pipe 2 diameter is comparatively large, the speed of air-flow is lower.The regular hexagon through hole 1-1 of honeycomb rectifier 1 end face, whirlpool large in stream air fragmentation can be reformed, after little whirlpool after fragmentation enters small through hole 1-1, experience sufficiently long straight length, can the air-flow of disorder be reformed in order, eliminate the tangential velocity of air-flow, make the flow direction of air-flow all consistent with pipeline center.Air-flow enters outflow tube 4 by the contraction section 5 of collapsible tube 3 subsequently.The sectional area of outflow tube 4 significantly reduces, and gas flow rate rises, to enter fan inlet at a high speed.To sum up, this constant-current stabilizer had both effectively been adjusted disorderly air-flow, significantly reduced again consequent crushing.Reduce to amplitude peak the impact of disorderly air inlet on fan performance.
Claims (6)
1. for a structure for the constant-current stabilizer of blower fan air inlet, it is characterized in that: comprise honeycomb rectifier (1), influent stream pipe (2), collapsible tube (3) and outflow tube (4); Described honeycomb rectifier (1) is weldingly fixed in influent stream pipe (2); Described honeycomb rectifier (1) is positioned at influent stream pipe (2) the right, described honeycomb rectifier (1) end face is provided with some through holes (1-1), described collapsible tube (3) is positioned at honeycomb rectifier (1) left side, described collapsible tube (3) one end is connected with influent stream pipe (2), and the other end is connected with described outflow tube (4); Described outflow tube (4) is connected with fan inlet.
2. the structure of a kind of constant-current stabilizer for blower fan air inlet as claimed in claim 1, is characterized in that: the external diameter of described honeycomb rectifier (1) is identical with the internal diameter of influent stream pipe (2), is D1; The apothem of described through hole (1-1) is d1, and described apothem d1 is between 0.01D1-0.03D1.
3. the structure of a kind of constant-current stabilizer for blower fan air inlet as claimed in claim 1, is characterized in that: the width of described honeycomb rectifier (1) is L1, and described width L1 is between 8d1-15d1.
4. the structure of a kind of constant-current stabilizer for blower fan air inlet as claimed in claim 1, is characterized in that: the internal diameter of described outflow tube (4) is D2, and described internal diameter D2 is between 0.2D2-0.5D2.
5. the structure of a kind of constant-current stabilizer for blower fan air inlet as claimed in claim 1, it is characterized in that: described collapsible tube (3) is provided with contraction section (5), the wall molded line of contraction section (5) seamlessly transits, and the curve tangent by multistage is formed; Honeycomb rectifier (1) is that L2, L2 are not less than 2D1 with the distance of contraction section (5).
6. the structure of a kind of constant-current stabilizer for blower fan air inlet as claimed in claim 1, is characterized in that: described through hole (1-1) shape is regular hexagon, is not mutually communicated with between through hole (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410567749.4A CN104329325A (en) | 2014-10-22 | 2014-10-22 | Flow stabilizing device for air intake of fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410567749.4A CN104329325A (en) | 2014-10-22 | 2014-10-22 | Flow stabilizing device for air intake of fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104329325A true CN104329325A (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410567749.4A Pending CN104329325A (en) | 2014-10-22 | 2014-10-22 | Flow stabilizing device for air intake of fan |
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| Country | Link |
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| CN (1) | CN104329325A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793013A (en) * | 2015-04-12 | 2015-07-22 | 吉林大学 | Application of honeycomb duct in molecule-electron induction accelerometer |
| CN107976236A (en) * | 2018-01-24 | 2018-05-01 | 广州能源检测研究院 | The new current-stabilizing structure and current stabilization method of Sonic Nozzle Gas Flow Standard Device |
| CN108854403A (en) * | 2018-08-02 | 2018-11-23 | 安徽鑫昆净化设备有限公司 | A kind of Combined industry deduster of the reversed drifting dust of air outlet |
| CN113512933A (en) * | 2021-05-15 | 2021-10-19 | 石家庄铁道大学 | Wind-resistant enclosure structure for large-span bridge |
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| US4573526A (en) * | 1982-04-28 | 1986-03-04 | Westinghouse Electric Corp. | Steam generator flow control device |
| CN2583642Y (en) * | 2002-12-06 | 2003-10-29 | 上海航天动力机械有限公司 | Flow regulating apparatus for gas flow measuring probe unit |
| CN201795822U (en) * | 2009-11-20 | 2011-04-13 | 中国航空工业空气动力研究院 | High-precision large-scale gas flow meter |
| CN202017680U (en) * | 2011-01-14 | 2011-10-26 | 重庆市科学技术研究院 | Gas flow adjusting device |
| CN103953620A (en) * | 2014-05-21 | 2014-07-30 | 无锡杰尔压缩机有限公司 | Rectifying combining device with damping net |
| CN204267434U (en) * | 2014-10-22 | 2015-04-15 | 无锡杰尔压缩机有限公司 | A kind of constant-current stabilizer for blower fan air inlet |
-
2014
- 2014-10-22 CN CN201410567749.4A patent/CN104329325A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4573526A (en) * | 1982-04-28 | 1986-03-04 | Westinghouse Electric Corp. | Steam generator flow control device |
| CN2583642Y (en) * | 2002-12-06 | 2003-10-29 | 上海航天动力机械有限公司 | Flow regulating apparatus for gas flow measuring probe unit |
| CN201795822U (en) * | 2009-11-20 | 2011-04-13 | 中国航空工业空气动力研究院 | High-precision large-scale gas flow meter |
| CN202017680U (en) * | 2011-01-14 | 2011-10-26 | 重庆市科学技术研究院 | Gas flow adjusting device |
| CN103953620A (en) * | 2014-05-21 | 2014-07-30 | 无锡杰尔压缩机有限公司 | Rectifying combining device with damping net |
| CN204267434U (en) * | 2014-10-22 | 2015-04-15 | 无锡杰尔压缩机有限公司 | A kind of constant-current stabilizer for blower fan air inlet |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793013A (en) * | 2015-04-12 | 2015-07-22 | 吉林大学 | Application of honeycomb duct in molecule-electron induction accelerometer |
| CN107976236A (en) * | 2018-01-24 | 2018-05-01 | 广州能源检测研究院 | The new current-stabilizing structure and current stabilization method of Sonic Nozzle Gas Flow Standard Device |
| CN107976236B (en) * | 2018-01-24 | 2023-08-18 | 广州能源检测研究院 | Steady flow structure and steady flow method of sonic nozzle gas flow standard device |
| CN108854403A (en) * | 2018-08-02 | 2018-11-23 | 安徽鑫昆净化设备有限公司 | A kind of Combined industry deduster of the reversed drifting dust of air outlet |
| CN108854403B (en) * | 2018-08-02 | 2020-11-27 | 安徽鑫昆净化设备有限公司 | Combined industrial dust collector with reverse dust blowing function at air outlet |
| CN113512933A (en) * | 2021-05-15 | 2021-10-19 | 石家庄铁道大学 | Wind-resistant enclosure structure for large-span bridge |
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Application publication date: 20150204 |
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