CN203500189U - Throttling and pressure reducing combination device using triangular hole throttling valve - Google Patents
Throttling and pressure reducing combination device using triangular hole throttling valve Download PDFInfo
- Publication number
- CN203500189U CN203500189U CN201320558956.4U CN201320558956U CN203500189U CN 203500189 U CN203500189 U CN 203500189U CN 201320558956 U CN201320558956 U CN 201320558956U CN 203500189 U CN203500189 U CN 203500189U
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- China
- Prior art keywords
- throttle valve
- delthyrium
- rectifier
- throttling valve
- throttling
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Abstract
The utility model relates to an airflow adjusting device, in particular to a throttling and pressure reducing combination device using a triangular hole throttling valve, which is used for carrying out pressure reduction and flow stabilization in fan measurement. The throttling and pressure reducing combination device using the triangular hole throttling valve comprises a throttling valve, a connecting pipe and a rectifier, wherein the throttling valve comprises a left flange, a throttling valve plate and a right flange, the left flange and the right flange are respectively positioned at two sides of the throttling valve plate, the throttling valve plate is provided with N triangular holes A, the right flange is provided with N triangular holes B corresponding to the triangular holes A, and the throttling valve plate can be rotated; one end of the connecting pipe is fixedly connected with the right flange, and the other end of the connecting pipe is fixedly connected with the rectifier; the end surface of the rectifier is densely distributed with through holes, and the through holes are not communicated with each other. According to the throttling and pressure reducing combination device using the triangular hole throttling valve, disclosed by the utility model, airflow at an outlet is uniform and ordered, a straight pipe section for stabilizing a flow field is not needed, pressure and temperature measurement can be directly carried out, or an inlet of a compressor can be directly connected, and thus the field requirement of a draught fan test is greatly reduced.
Description
Technical field
The utility model relates to a kind of air flow regulator, especially, in blower fan is measured, air-flow is carried out to the device of step-down current stabilization, is specially the reducing pressure by regulating flow combination unit that uses delthyrium throttle valve.
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.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.The required pressure of fan test is less, and the air-flow after step-down is just more disorderly, and required straight length is longer, just higher to the requirement in place.
Model utility content
Goal of the invention of the present utility model is to solve the required pressure of fan test more hour, air-flow after step-down is just more disorderly, required straight length is longer, to the requirement in place higher defect just, provide a kind of air-flow to produce the larger pressure loss, disorderly air-flow after step-down is effectively integrated simultaneously, make the air-flow of flowing through evenly dredge whole, meet the inlet pressure requirement of fan test, the reducing pressure by regulating flow combination unit of the use delthyrium throttle valve simultaneously fan performance not being had a negative impact because of air turbulence.
Goal of the invention of the present utility model is achieved in that
The reducing pressure by regulating flow combination unit that uses delthyrium throttle valve, comprises throttle valve, connecting tube and rectifier.Described throttle valve comprises left flange, throttle valve valve plate and right flange, described left flange and described right flange lay respectively at described throttle valve valve plate both sides, on described throttle valve valve plate, there is N delthyrium first, described right flange is provided with N the delthyrium second corresponding with described delthyrium first, and described throttle valve valve plate is rotatable.One end of described connecting tube is fixedly connected with described right flange, and described connecting tube is positioned at the downstream of described throttle valve, by the right flange of bolt and throttle valve, fixes.The other end of described connecting tube is fixedly connected with described rectifier, and described rectifier is positioned at the downstream of described connecting tube, is bolted.The densely covered through hole of end face of described rectifier, is not communicated with mutually between described through hole.
Further, described throttle valve, described connecting tube are identical with the internal diameter of described rectifier, are D; Described connecting tube be length L 1, wherein 0.5D≤L1≤D.The through-hole diameter of described rectifier is d, 0.01D≤d≤0.02D wherein, the length L 2 of described rectifier, wherein 8d≤L2≤10d.
Further, described throttle valve valve plate normal vector direction is outwards provided with handle, and described left flange is provided with the groove coordinating with described handle.And then described groove is waist type groove.
Described delthyrium is obtuse angle isosceles triangle, and described delthyrium is a with respect to the fan-shaped subtended angle in the valve plate center of circle, and a is less than 180 °/N.
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 several delthyriums distributes along even circumferential, airflow passes throttle valve, and in the time of effective step-down, air turbulence degree significantly reduces, and enters rectifier subsequently through connecting tube.Connect 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, disorderly air-flow can be reformed in order, make even flow field consistent.Depressurization and rectification effect of the present utility model is excellent, and the air-flow of outlet is uniform sequential, without straight length, with steady flow condition, can directly carry out pressure, thermometry, or directly connect compressor inlet, has greatly reduced the site requirements of fan test.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model structure.
Fig. 2 is the schematic diagram of throttle valve.
Fig. 3 is the A-A schematic diagram of throttle valve
Fig. 4 is the schematic diagram of rectifier.
In figure:
1 throttle valve,
11 throttle valve valve plates,
12 delthyrium first,
13 right flanges,
14 delthyrium second,
15 left flanges,
16 handles,
17 grooves,
2 connecting tubes,
3 rectifiers,
31 through holes,
D throttle valve internal diameter, connecting tube internal diameter, rectifier internal diameter,
D through-hole diameter,
The length of L1 connecting tube,
The length of L2 rectifier.
Embodiment
The utility model is further described in connection with the embodiment in accompanying drawing below:
As shown in Figure 1, Figure 2, Figure 3 shows:
The reducing pressure by regulating flow combination unit that uses delthyrium throttle valve, comprises throttle valve 1, connecting tube 2 and rectifier 3.Throttle valve 1 comprises left flange 15, throttle valve valve plate 11 and right flange 13, left flange 15 lays respectively at throttle valve valve plate 11 both sides with right flange 13, on throttle valve valve plate 11, there are 8 delthyrium first 12, right flange 13 is provided with 8 the delthyrium second 14 corresponding with delthyrium first 12, and throttle valve valve plate 11 is rotatable.
Connecting tube 2 is positioned at the downstream of throttle valve 1, and one end of connecting tube 2 is fixedly connected with right flange 13 by bolt.Rectifier 3 is positioned at the downstream of connecting tube 2, and the other end of connecting tube 2 is fixedly connected with rectifier 3 by bolt.The densely covered through hole 31 of end face of rectifier 3, is not communicated with mutually between through hole 31.
Further, throttle valve 1, connecting tube 2, rectifier 3 inside diameter D are identical, are 500mm.Connecting tube 2 length L 1 are 300mm.Through hole 31 diameter d of rectifier 3 are 7mm, and rectifier 3 length L 2 are 60mm.
Throttle valve valve plate 11 normal vector directions are outwards provided with two handles 16, and left flange 15 is provided with the groove 17 of the waist type coordinating with handle 16.Handle 16 can rotate along the track of groove 17, thereby drives throttle valve valve plate 11 to rotate, and throttle valve valve plate 11 makes 8 delthyrium first 12 and 8 the delthyrium second 14 on right flange 13 form dislocation while rotating, thereby controls circulation area.
Further, delthyrium first 12 is identical with delthyrium second 14, is obtuse angle isosceles triangle, and delthyrium first 12 is 20 ° with respect to the fan-shaped subtended angle a in throttle valve valve plate 2 centers of circle, and a is less than 22.5 °, can guarantee that like this throttle valve 1 can be completely closed.
The circulating area that the delthyrium first 12 of throttle valve 1 and delthyrium second 14 distribute and jointly form along even circumferential, in the time of the 1 effective step-down of airflow passes throttle valve, air turbulence degree significantly reduces, and enters rectifier 3 subsequently through connecting tube 2.Connect the through hole 31 of rectifier 3 cylindrical body end faces, in stream, large whirlpool fragmentation is reformed in the future, and the little whirlpool after fragmentation enters after through hole 31, experiences sufficiently long straight length, disorderly air-flow can be reformed in order, make even flow field consistent.Depressurization and rectification effect of the present utility model is excellent, and the air-flow of outlet is uniform sequential, without straight length, with steady flow condition, can directly carry out pressure, thermometry, or directly connect compressor inlet, has greatly reduced the site requirements of fan test.
Claims (6)
1. use the reducing pressure by regulating flow combination unit of delthyrium throttle valve, it is characterized in that: comprise throttle valve, connecting tube and rectifier; Described throttle valve comprises left flange, throttle valve valve plate and right flange, described left flange and described right flange lay respectively at described throttle valve valve plate both sides, on described throttle valve valve plate, there is N delthyrium first, described right flange is provided with N the delthyrium second corresponding with described delthyrium first, and described throttle valve valve plate is rotatable; One end of described connecting tube is fixedly connected with described right flange, and the other end of described connecting tube is fixedly connected with described rectifier, and the densely covered through hole of end face of described rectifier, is not communicated with mutually between described through hole.
2. the reducing pressure by regulating flow combination unit of use delthyrium throttle valve according to claim 1, is characterized in that: described throttle valve, described connecting tube are identical with the internal diameter of described rectifier, are D; Described connecting tube be length L 1, wherein 0.5D≤L1≤D.
3. the reducing pressure by regulating flow combination unit of use delthyrium throttle valve according to claim 2, is characterized in that: the through-hole diameter of described rectifier is d, 0.01D≤d≤0.02D wherein, the length L 2 of described rectifier, wherein 8d≤L2≤10d.
4. according to the reducing pressure by regulating flow combination unit of the use delthyrium throttle valve described in claims 1 to 3 any one, it is characterized in that: described throttle valve valve plate normal vector direction is outwards provided with handle, and described left flange is provided with the groove coordinating with described handle.
5. the reducing pressure by regulating flow combination unit of use delthyrium throttle valve according to claim 4, is characterized in that: described groove is waist type groove.
6. according to the reducing pressure by regulating flow combination unit of the use delthyrium throttle valve described in claims 1 to 3 any one, it is characterized in that: described delthyrium is obtuse angle isosceles triangle, described delthyrium is a with respect to the fan-shaped subtended angle in the valve plate center of circle, and a is less than 180 °/N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320558956.4U CN203500189U (en) | 2013-09-10 | 2013-09-10 | Throttling and pressure reducing combination device using triangular hole throttling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320558956.4U CN203500189U (en) | 2013-09-10 | 2013-09-10 | Throttling and pressure reducing combination device using triangular hole throttling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203500189U true CN203500189U (en) | 2014-03-26 |
Family
ID=50331171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320558956.4U Expired - Lifetime CN203500189U (en) | 2013-09-10 | 2013-09-10 | Throttling and pressure reducing combination device using triangular hole throttling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573759A (en) * | 2013-11-12 | 2014-02-12 | 无锡杰尔压缩机有限公司 | Throttling and pressure reduction combined device of triangular hole throttling valve |
-
2013
- 2013-09-10 CN CN201320558956.4U patent/CN203500189U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573759A (en) * | 2013-11-12 | 2014-02-12 | 无锡杰尔压缩机有限公司 | Throttling and pressure reduction combined device of triangular hole throttling valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 214117 Jiangsu Province, Wuxi City Lake District Xishan town Ganlu Gan thick road No. 52 Patentee before: Wuxi Jieer Compressor Co., Ltd. |