CN203430914U - Multi-hole rectifying device with depressurization function - Google Patents
Multi-hole rectifying device with depressurization function Download PDFInfo
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- CN203430914U CN203430914U CN201320503157.7U CN201320503157U CN203430914U CN 203430914 U CN203430914 U CN 203430914U CN 201320503157 U CN201320503157 U CN 201320503157U CN 203430914 U CN203430914 U CN 203430914U
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- rectifying device
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Abstract
The utility model relates to a multi-hole rectifying device with the depressurization function. The multi-hole rectifying device comprises a flange and a cylinder, the flange is fastened at the two ends of the cylinder through screws, small through holes are evenly formed in the end face of the cylinder, the small through holes penetrate through the cylinder from the left end face to the right end face, and the small through holes are mutually isolated. The flange is connected to an inlet airflow tube of a fan, and the flange is matched with a connected tube. The multi-hole rectifying device is easy to machine, the small through holes penetrating through the end faces of the cylinder can break and reform large vortexes in incoming airflow, after small broken vortexes enter the small through holes to pass through a straight tube section with the sufficient length, the disorder airflow can be orderly reformed, and therefore flow fields are even and coincident. The sum of areas of the small through holes is controlled, the effective resistance can be provided for the airflow, and the incoming pressure is reduced.
Description
Technical field
The utility model relates to a kind of porous rectifying device with buck functionality, in blower fan is measured, after inlet throttle, air-flow is carried out the device of step-down current stabilization specifically.
Background technique
In the application of fan test, usually need the incoming flow of negative pressure, contribute to like this to reduce the required air horsepower of blower fan, can reduce the hardware requirement of test.For the blower fan of some superhigh powers, conventionally adopt such method to test.
In prior art, conventionally adopt throttle valve to carry out step-down throttling, when the pressure of required decline is larger, air-flow tends to very disorderly, thereby need one section of very long straight pipeline that disorderly air-flow is become evenly again, avoid the measurement of follow-up blower fan to produce adverse influence.Also have by honeycomb rectifier and carry out uniform air flow, can under to a certain degree, shorten the length of straight pipeline, but effect is still limited.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, thereby provide a kind of porous rectifying device with buck functionality, this device can make air-flow be evenly distributed, effectively integrate disorderly temperature field, pressure field, to air-flow, can produce the larger pressure loss simultaneously, can further meet blower fan import and test required step-down requirement; It is simple in structure, and cost is low, has stronger practicability.
The technological scheme providing according to the utility model, a kind of structure of the porous rectifying device with buck functionality comprises flange and cylindrical body; Described flange by screw fastening at cylindrical body two ends; On cylindrical body end face, be laid with small through hole, small through hole connects to right side from cylindrical left side, isolated mutually between through hole; Described flange is connected in the inlet airflow duct of blower fan, and described flange matches be connected pipeline.
As further improvement of the utility model, described cylinder diameter is 500mm, and described cylindrical diameter and pipe diameter match.
As further improvement of the utility model, described through-hole diameter is 10mm, and the area sum of through hole accounts for 40% to 60% of cylindrical body face area.
As further improvement of the utility model, described cylindrical body adopts aluminum alloy material to make.
As further improvement of the utility model, described cylinder length is 100mm, and its length should be more than or equal to 10 with the ratio of through-hole diameter.
Compared with the prior art the utility model has the following advantages:
The utility model is simple in structure, compact, reasonable.Cylindrical body adopts aluminum alloy material to make, and is easy to processing, connects the small through hole of cylindrical body end face, in stream, large whirlpool fragmentation is reformed in the future, and the little whirlpool after fragmentation enters after small through hole, experiences sufficiently long straight length, disorderly air-flow can be reformed in order, be made even flow field consistent.On the other hand, control the area sum of small through hole, can provide effective resistance to air-flow, reduce the pressure of incoming flow.Compared with the prior art, for disorderly air-flow, the required flow development length in the better downstream of the utility model rectification effect can reduce more than 50%, has reduced the site requirements of fan test.Also there is buck functionality simultaneously, can assist the throttle valve of upstream to complete the task of step-down, even, in step-down, require under little service condition, can, without throttle valve, bear alone the effect of step-down and current stabilization.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model structure.
Fig. 2 is the A-A view of Fig. 1.
Embodiment
The utility model is further described in connection with the embodiment in accompanying drawing below:
As shown in Figure 1 and Figure 2: the technological scheme providing according to the utility model, a kind of structure of the porous rectifying device with buck functionality comprises flange 1 and cylindrical body 2.Described cylindrical body 2 adopts aluminum alloy material to make, the end face small through hole 2-1 that gathers, and small through hole 2-1 connects to right side from cylindrical left side, between through hole, completely cuts off mutually, is not communicated with.Described flange 1 by screw fastening at cylindrical body 2 two ends.Porous rectifying device is connected in the inlet airflow duct of blower fan by described flange 1, shown in flange 1 match be connected pipeline.
Described cylindrical body 2 diameter D are 500mm, and diameter is that D and pipe diameter match, and depends on the flow of air-flow.Small through hole 2-1 diameter d is 10mm, and the area sum of small through hole 2-1 accounts for 40% to 60% of cylindrical body face area.Can guarantee like this, porous rectifying device can effectively reduce by the pressure of air-flow.
Described cylindrical body 2 length L are 100mm, and its length L should be more than or equal to 10 with the ratio of small through hole 2-1 diameter d.Can guarantee like this, the air-flow in small through hole 2-1 has sufficiently long current stabilization straight length, thereby guarantees effectively even disorderly air-flow of porous rectifying device.
The utility model is simple in structure, compact, reasonable.Cylindrical body 2 materials adopt aluminium, are easy to processing, connect the small through hole 2-1 of cylindrical body 2 end faces, in stream, large whirlpool fragmentation is reformed in the future, and the little whirlpool after fragmentation enters after small through hole 2-1, experiences sufficiently long straight length, disorderly air-flow can be reformed in order, be made even flow field consistent.On the other hand, control the area sum of small through hole 2-1, can provide effective resistance to air-flow, reduce the pressure of incoming flow.Compared with the prior art, for disorderly air-flow, the required flow development length in the better downstream of the utility model rectification effect can reduce more than 50%, has reduced the site requirements of fan test.Also there is buck functionality simultaneously, can assist the throttle valve of upstream to complete the task of step-down, even, in step-down, require under little service condition, can, without throttle valve, bear alone the effect of step-down and current stabilization.
Claims (5)
1. with a porous rectifying device for buck functionality, it is characterized in that: comprise flange (1) and cylindrical body (2); Described flange (1) by screw fastening at cylindrical body (2) two ends; On cylindrical body (2) end face, be laid with through hole (2-1), through hole (2-1) connects to right side from cylindrical left side, isolated mutually between through hole (2-1); Described flange (1) is connected in the inlet airflow duct of blower fan, and described flange (1) matches be connected pipeline.
2. a kind of porous rectifying device with buck functionality as claimed in claim 1, is characterized in that: described cylindrical body (2) diameter is 500mm, and diameter and the pipe diameter of described cylindrical body (2) match.
3. a kind of porous rectifying device with buck functionality as claimed in claim 1, is characterized in that: through hole (2-1) diameter is 10mm, and the area sum of through hole (2-1) accounts for 40% to 60% of cylindrical body face area.
4. a kind of porous rectifying device with buck functionality as claimed in claim 1, is characterized in that: described cylindrical body (2) adopts aluminum alloy material to make.
5. a kind of porous rectifying device with buck functionality as claimed in claim 1, is characterized in that: described cylindrical body (2) length is 100mm, and its length and through hole (2-1) diameter ratio should be more than or equal to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320503157.7U CN203430914U (en) | 2013-08-19 | 2013-08-19 | Multi-hole rectifying device with depressurization function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320503157.7U CN203430914U (en) | 2013-08-19 | 2013-08-19 | Multi-hole rectifying device with depressurization function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203430914U true CN203430914U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320503157.7U Expired - Lifetime CN203430914U (en) | 2013-08-19 | 2013-08-19 | Multi-hole rectifying device with depressurization function |
Country Status (1)
| Country | Link |
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| CN (1) | CN203430914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452969A (en) * | 2013-08-19 | 2013-12-18 | 无锡杰尔压缩机有限公司 | Porous rectifying device with pressure reduction function |
-
2013
- 2013-08-19 CN CN201320503157.7U patent/CN203430914U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452969A (en) * | 2013-08-19 | 2013-12-18 | 无锡杰尔压缩机有限公司 | Porous rectifying device with pressure reduction function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 214106 No. 38, Qian Lian Road, Xishan Economic Development Zone, Xishan District, Jiangsu, Wuxi Patentee after: JIANGSU GL-TURBO CORPORATION Address before: 214192 Jiangsu Province, Wuxi city Xishan District of Xishan Economic Development Zone in three Furong Road No. 99 building six room 507 zuiun Patentee before: Wuxi Jieer Compressor Co., Ltd. |