CN203585383U - Throttling pressure reducing device - Google Patents
Throttling pressure reducing device Download PDFInfo
- Publication number
- CN203585383U CN203585383U CN201320347373.7U CN201320347373U CN203585383U CN 203585383 U CN203585383 U CN 203585383U CN 201320347373 U CN201320347373 U CN 201320347373U CN 203585383 U CN203585383 U CN 203585383U
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- Prior art keywords
- rectifier plate
- fan shaped
- flange
- right flange
- fan
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Abstract
The utility model relates to a throttling pressure reducing device, which belongs to the technical field of mechanical structures, and comprises a left flange, a throttling plate, and a right flange. The throttling plate is provided with throttling plate fan-shaped holes, which are uniformly distributed around the circular center of the throttling plate. The right flange is provided with right flange fan-shaped holes, which align with the throttling plate fan-shaped holes. The left flange and the right flange are respectively disposed at two sides of the throttling plate, and the left flange is provided with a ring-shaped groove, corresponding to the left flange. The throttling pressure reducing device is advantageous in that the structure is simple, compact and reasonable; circulation areas formed by a plurality of fan-shaped holes are uniformly distributed along the circumference. Airflow passes through a reducing valve, and thereby pressure is reduced, while the degree of irregularity of airflow can be greatly reduced. The length of a current stabilization segment required by the downstream can be reduced by 50%, and the size of a field required by a blower fan experiment can be reduced.
Description
Technical field
The utility model relates to a kind of reducing pressure by regulating flow device, can effectively reduce the turbulence of air-flow after step-down, greatly shortens the required barretter length in downstream, belongs to mechanical structure technical field.
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 gate 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.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, thereby a kind of reducing pressure by regulating flow device is provided, and this device can effectively reduce stream pressure, reduces flow, on the other hand, more orderly by the air-flow after step-down; Simple in structure, cost is low, has stronger practicability.
The technological scheme providing according to the utility model, a kind of reducing pressure by regulating flow device comprises left flange, Rectifier plate and right flange; Described Rectifier plate is provided with Rectifier plate fan shaped borehole, and described Rectifier plate fan shaped borehole center of circle on Rectifier plate is uniformly distributed; Described right flange is provided with right flange fan shaped borehole, and described right flange fan shaped borehole is alignd with described Rectifier plate fan shaped borehole; Described left flange and described right flange are separately positioned on described Rectifier plate both sides, and described left flange is provided with and the corresponding circular groove of described handle.
As further improvement of the utility model, on described Rectifier plate, be also provided with two handles.
As further improvement of the utility model, the subtended angle of described Rectifier plate fan shaped borehole and described right flange fan shaped borehole is 20 °, and it is less than 180 °/N; Can guarantee that like this dropping valve can be completely closed.
As further improvement of the utility model, described Rectifier plate fan shaped borehole and described right flange fan shaped borehole are respectively 8.
Compared with the prior art the utility model has the following advantages:
The utility model is simple in structure, compact, reasonable.The circulating area being comprised of N fan shaped borehole distributes along even circumferential.Airflow passes dropping valve, in the time of effective step-down, air turbulence degree significantly reduces, and the required steady flow segment length in downstream can reduce 50%, has also reduced blower fan and has tested required site requirements simultaneously.Not only antihypertensive effect is good, and practicability is also strong.
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 reducing pressure by regulating flow device comprises left flange 1, Rectifier plate 2 and right flange 3.Described Rectifier plate 2 is provided with 8 fan shaped boreholes, and 8 fan shaped boreholes are uniformly distributed in the center of circle on Rectifier plate 2.On described right flange 3, also there are 8 fan shaped boreholes, align with the hole of described Rectifier plate 2.Described left flange 1 is separately positioned on described Rectifier plate 2 both sides with described right flange 3, is also provided with two handles on described Rectifier plate 2, and described left flange 1 is provided with and the corresponding circular groove of described handle.Described Rectifier plate 2 can freely rotate.During rotation and right flange 3 form dislocation, thereby control circulation area.
On described Rectifier plate 2, on fan shaped borehole and described right flange 3, the subtended angle of fan shaped borehole is 20 °, and it is less than 180 °/N(N representative is the number of fan shaped borehole, if N is 6,30 spend), can guarantee that like this dropping valve can be completely closed.
The utility model is simple in structure, compact, reasonable.During airflow passes reducing pressure by regulating flow device, pass through 8 fan shaped borehole regions, the large I in the through-flow region that fan shaped borehole forms rotates to control by Rectifier plate.Air flow stream is crossed behind 8 fan shaped borehole regions, circulation area sudden enlargement, and flow velocity sharply reduces, and a part of air-flow forms and refluxes, and the vortex in backflow produces larger flow loss, and stream pressure is declined.Compared with the prior art, after this throttling dropping equipment, there are 8 recirculating zones, place in whole flow field, is circumferentially being uniformly distributed.The flow losses that vortex produces are relatively disperseed, and after pressure drop, in downstream line, because vortex is smaller, can again comb rapidly whole.Be proven, this throttling dropping equipment can effectively reduce the turbulence of air-flow after step-down, greatly shortens the required barretter length in downstream, has also reduced blower fan and has tested required site requirements simultaneously.
Claims (4)
1. a reducing pressure by regulating flow device, is characterized in that: comprise left flange (1), Rectifier plate (2) and right flange (3); Described Rectifier plate (2) is provided with Rectifier plate fan shaped borehole, and described Rectifier plate fan shaped borehole is uniformly distributed around the upper center of circle of Rectifier plate (2); Described right flange (3) is provided with right flange fan shaped borehole, and described right flange fan shaped borehole is alignd with described Rectifier plate fan shaped borehole; Described left flange (1) is separately positioned on described Rectifier plate (2) both sides with described right flange (3), and described left flange (1) is provided with and the corresponding circular groove of described handle.
2. a kind of reducing pressure by regulating flow device as claimed in claim 1, is characterized in that: on described Rectifier plate (2), be also provided with two handles.
3. a kind of reducing pressure by regulating flow device as claimed in claim 1, is characterized in that: the subtended angle of described Rectifier plate fan shaped borehole and described right flange fan shaped borehole is 20 °, and it is less than 180 °/N, and N is the number of fan shaped borehole on Rectifier plate.
4. a kind of reducing pressure by regulating flow device as claimed in claim 1, is characterized in that: described Rectifier plate fan shaped borehole and described right flange fan shaped borehole are respectively 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320347373.7U CN203585383U (en) | 2013-06-17 | 2013-06-17 | Throttling pressure reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320347373.7U CN203585383U (en) | 2013-06-17 | 2013-06-17 | Throttling pressure reducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203585383U true CN203585383U (en) | 2014-05-07 |
Family
ID=50583309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320347373.7U Expired - Lifetime CN203585383U (en) | 2013-06-17 | 2013-06-17 | Throttling pressure reducing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203585383U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291943A (en) * | 2013-06-17 | 2013-09-11 | 无锡杰尔压缩机有限公司 | Throttle dropping equipment |
| CN104405997A (en) * | 2014-11-10 | 2015-03-11 | 沪东中华造船(集团)有限公司 | Adjustable restriction orifice device for vessel |
| CN104879507A (en) * | 2015-04-10 | 2015-09-02 | 袁前灿 | Vibration attenuation adjusting butterfly valve |
| CN105840852A (en) * | 2016-04-27 | 2016-08-10 | 池州大自然环保工程有限公司 | Mud and ash discharge valve capable of being quickly opened and closed |
| CN106032202A (en) * | 2015-03-18 | 2016-10-19 | 辽宁格瑞自动化设备有限公司 | Discharge gate structure |
-
2013
- 2013-06-17 CN CN201320347373.7U patent/CN203585383U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291943A (en) * | 2013-06-17 | 2013-09-11 | 无锡杰尔压缩机有限公司 | Throttle dropping equipment |
| CN104405997A (en) * | 2014-11-10 | 2015-03-11 | 沪东中华造船(集团)有限公司 | Adjustable restriction orifice device for vessel |
| CN106032202A (en) * | 2015-03-18 | 2016-10-19 | 辽宁格瑞自动化设备有限公司 | Discharge gate structure |
| CN106032202B (en) * | 2015-03-18 | 2019-03-19 | 辽宁格瑞自动化设备有限公司 | A kind of discharge mouth structure |
| CN104879507A (en) * | 2015-04-10 | 2015-09-02 | 袁前灿 | Vibration attenuation adjusting butterfly valve |
| CN105840852A (en) * | 2016-04-27 | 2016-08-10 | 池州大自然环保工程有限公司 | Mud and ash discharge valve capable of being quickly opened and closed |
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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: GL-TURBO LLC 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: GL-TURBO Compressor, LLC |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |