CN203488487U - Throttling depressurization combination device with scallop hole throttling valve - Google Patents
Throttling depressurization combination device with scallop hole throttling valve Download PDFInfo
- Publication number
- CN203488487U CN203488487U CN201320561445.8U CN201320561445U CN203488487U CN 203488487 U CN203488487 U CN 203488487U CN 201320561445 U CN201320561445 U CN 201320561445U CN 203488487 U CN203488487 U CN 203488487U
- Authority
- CN
- China
- Prior art keywords
- throttle valve
- rectifier
- throttling valve
- throttling
- right flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Check Valves (AREA)
Abstract
The utility model relates to a device adjusting airflow, in particular to a device for carrying out depressurization and flow stabilization on airflow in fan measurement, and particularly discloses a throttling depressurization combination device with a scallop hole throttling valve. The throttling depressurization combination device with the scallop hole throttling valve comprises the throttling valve, a connecting pipe and a rectifier. The throttling valve comprises a left flange, a throttling valve plate and a right flange, the left flange and the right flange are arranged on the two sides of the throttling valve plate respectively, N scallop holes I are formed in the throttling valve plate, N scallop holes II corresponding to the scallop holes I are formed in the right flange, and the throttling valve plate can rotate. 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. Through holes are densely formed in the end face of the rectifier, and the through holes are not communicated with each other. The airflow of an outlet of the device is even and in order, a flow field does not need to be stabilized through a straight pipe section, pressure and temperature can be directly measured, or an inlet of a compressor can be directly connected, and the site requirement of a fan test is greatly reduced.
Description
Technical field
The utility model relates to a kind of device that regulates air-flow, 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 fan shaped borehole 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 fan shaped borehole 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 fan shaped borehole 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 fan shaped borehole first, described right flange is provided with N the fan shaped borehole second corresponding with described fan shaped borehole 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, L1 is between 0.5D to D.The through-hole diameter of described rectifier is d, d between 0.01D to 0.02D, the length L 2 of described rectifier, L2 is between 8d to 10d.
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 fan shaped boreholes 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 schematic diagram of rectifier.
In figure:
1 throttle valve,
11 throttle valve valve plates, 12 fan shaped borehole first, right flange 13,14 fan shape hole second, 15 left flanges,
2 connecting tubes,
3 rectifiers,
31 through holes,
D throttle valve internal diameter, connecting tube internal diameter, rectifier internal diameter,
D through-hole diameter.
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 fan shaped borehole throttle valve, comprises throttle valve 1, connecting tube 2 and rectifier 3.Throttle valve 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 fan shaped borehole first 12, right flange 13 is provided with 8 the fan shaped borehole second 14 corresponding with fan shaped borehole 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 diameters of rectifier are that d is 7mm, and rectifier 3 length L 2 are 60mm.
The circulating area that 8 fan shaped boreholes of throttle valve 1 form distributes along even circumferential, airflow passes throttle valve 1, and in the time of effective step-down, 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 (3)
1. use the reducing pressure by regulating flow combination unit of fan shaped borehole throttle valve, comprise throttle valve, 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 fan shaped borehole first, described right flange is provided with N the fan shaped borehole second corresponding with described fan shaped borehole first, described throttle valve valve plate is rotatable, it is characterized in that: also comprise connecting tube and rectifier, one end of described connecting tube is fixedly connected with described right flange, the other end of described connecting tube is fixedly connected with described rectifier, the densely covered through hole of end face of described rectifier, between described through hole, be not communicated with mutually.
2. the reducing pressure by regulating flow combination unit of use fan shaped borehole 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 fan shaped borehole 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320561445.8U CN203488487U (en) | 2013-09-10 | 2013-09-10 | Throttling depressurization combination device with scallop hole throttling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320561445.8U CN203488487U (en) | 2013-09-10 | 2013-09-10 | Throttling depressurization combination device with scallop hole throttling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203488487U true CN203488487U (en) | 2014-03-19 |
Family
ID=50259323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320561445.8U Expired - Lifetime CN203488487U (en) | 2013-09-10 | 2013-09-10 | Throttling depressurization combination device with scallop hole throttling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203488487U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603995A (en) * | 2013-11-12 | 2014-02-26 | 无锡杰尔压缩机有限公司 | Throttling and depressurizing combined device of scallop-hole throttle valve |
-
2013
- 2013-09-10 CN CN201320561445.8U patent/CN203488487U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603995A (en) * | 2013-11-12 | 2014-02-26 | 无锡杰尔压缩机有限公司 | Throttling and depressurizing combined device of scallop-hole throttle valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102735297A (en) | Prepositioned flow adjuster of ultrasonic flow meter | |
| CN103573759A (en) | Throttling and pressure reduction combined device of triangular hole throttling valve | |
| CN204006815U (en) | Heat exchanger, air-conditioner outdoor unit and air-conditioner | |
| CN103953620A (en) | Rectifying combining device with damping net | |
| CN103603995A (en) | Throttling and depressurizing combined device of scallop-hole throttle valve | |
| CN203488487U (en) | Throttling depressurization combination device with scallop hole throttling valve | |
| CN103291943A (en) | Throttle dropping equipment | |
| CN202382384U (en) | Combination silencer of civil engineering air flue | |
| CN202304134U (en) | Air-conditioner | |
| CN203500189U (en) | Throttling and pressure reducing combination device using triangular hole throttling valve | |
| CN105423319B (en) | Reducing side's elbow and flue system | |
| CN104329325A (en) | Flow stabilizing device for air intake of fan | |
| CN203430914U (en) | Multi-hole rectifying device with depressurization function | |
| CN203453203U (en) | Throttling and pressure reduction combined device using diamond valve | |
| CN105444478A (en) | Throttling device for air conditioner | |
| CN103452969A (en) | Porous rectifying device with pressure reduction function | |
| CN204786747U (en) | Circulating fan organizes structure | |
| CN205208588U (en) | Novel reducing side's elbow and flue gas pipeline system | |
| CN103574082A (en) | Throttling and pressure-reducing combined device of rhombic valve | |
| CN109854854B (en) | Gas flow pipeline and gas treatment equipment | |
| CN203478741U (en) | Flow distributer for air conditioner | |
| CN209447536U (en) | A kind of Novel muffler | |
| CN208040683U (en) | A kind of energy-saving supercharging device | |
| CN203892309U (en) | Regulating combination with damping nets | |
| CN208651940U (en) | A kind of pipe vibration damper based on flow fieldoptimization |
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. |