CN206223395U - Can on-line control aperture orifice fitting - Google Patents
Can on-line control aperture orifice fitting Download PDFInfo
- Publication number
- CN206223395U CN206223395U CN201621214880.3U CN201621214880U CN206223395U CN 206223395 U CN206223395 U CN 206223395U CN 201621214880 U CN201621214880 U CN 201621214880U CN 206223395 U CN206223395 U CN 206223395U
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- CN
- China
- Prior art keywords
- blade
- ring flange
- line control
- regulating bolt
- orifice fitting
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- 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.)
- Withdrawn - After Issue
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The utility model discloses it is a kind of can on-line control aperture orifice fitting, including regulating bolt, ring flange, blade, rotating shaft, clamping screw, four passages of flabellum shape are offered in the middle of ring flange, the blade has four sectors coordinated with the passage, rotatably it is co-axially located on the ring flange, the turned position that can adjust the blade by the regulating bolt reaches the purpose for blocking the passage, the protruded length of regulating bolt has unique corresponding relation with the turned position of blade, so as to realize adjusting the function of aperture.The utility model need not dismantle pipeline, and, without pressure release, aperture regulation is intuitively controllable, without outward leakage for gas, with simple structure, the characteristics of easy for installation, the scope of application is air dielectric, pressure rating PN2.5~PN25, nominal diameter DN50~DN600, maximum opening increment 40%.
Description
Technical field
The utility model is related to the experimental rig field in wind tunnel test, is mainly used in Asia across under super wind-tunnel low mach
Pressure regulation.Under low mach, pressure regulation is carried out by installing orifice fitting of the present utility model on bypass duct,
Bypass pressure regulator valve is set to be in good voltage adjustment characteristic aperture interval, so as to expand the test speed range lower limit of high-speed wind tunnel.
Background technology
Wind tunnel test is the important means of aerodynamic studies.Wind-tunnel is divided into low velocity wind according to test air-flow velocity interval
Hole (Mach number M≤0.4), high-speed wind tunnel and hypersonic wind tunnel (Mach number M >=5.0) etc., velocity interval are the ＜ of Mach number 0.4
The high-speed wind tunnel of M≤4.5 is referred to as Asia across super wind-tunnel.Typical bottom blowing type Asia is across super construction of wind tunnel such as accompanying drawing 4.
If model wants that it is the test data of ＜ M≤4.5 of Mach number 0 to obtain velocity interval, typically in low-speed wind tunnel and
Asia is tested respectively across super wind-tunnel, then carries out Data Synthesis.It is dynamic with the representative China Aerospace air of domestic contrast
As a example by the wind-tunnel group of power Institute for Research and Technology, for 100m/s, (equivalent Mach number is about the velocity interval of low-speed wind tunnel (FD-09 wind-tunnel)
Within M≤0.3), the sub- velocity interval across super wind-tunnel (FD-06 wind-tunnel, FD-12 wind-tunnel) is ＜ M≤4.5 of Mach number 0.4.With elder generation
Enter as a example by the wind tunnel test of aircraft, the velocity interval of measure is 0.15 ＜ M≤2.5, it is desirable to test data precision and accuracy
Very high, the qualified index contemporary trials error of resistance unit is less than 0.0005, and non-synchronous test error is less than 0.001, advanced finger
Error is designated as less than 0.0001, now, distinct disadvantage is just exposed in low-speed wind tunnel and sub- being done experiment respectively across super wind-tunnel.First
It is that velocity field is not overlapped, has blank area between velocity interval is ＜ M≤0.4 of Mach number 0.3；Secondly because two wind-tunnel
Flow field state, mechanical mounting interface, test equipment etc. are incomplete same, and the systematic error of generation is incomplete same, causes data
The gap of linking is larger, directly affects the precision and accuracy of test.Therefore, it is necessary to Asia across super wind-tunnel lower velocity limit
Expand downwards, coverage speed scope is the blank area of ＜ M≤0.4 of Mach number 0.15, and such special type is completed across super wind-tunnel in Asia
Experiment.
During sub- Transonic Test, adjust total pressure by main pressure regulator valve to form different Mach numbers.Typical pressure regulation
With pressure characteristic as shown in Figure 5, in the original position of valve, it is interval that open range is in 0 ＜ X≤X1 to the aperture of valve
Interior, a less valve opening will just cause larger pressure change；And in the terminal position of valve, open range is in X2 ＜
In X≤100% is interval, same valve opening changes the pressure change for causing then very little.Therefore, the reasonable aperture area of pressure regulator valve
Between be X1 ＜ X≤X2.When the Mach number of wind tunnel test requirement is close to 0.4, if using main pressure regulator valve pressure regulation, valve opening will
Unreasonable interval in 0 ＜ X≤X1, at this moment closes main trigger valve and main pressure regulator valve, pipe diameter is used alone less
Bypass pressure regulator valve pressure regulation, when the Mach number of test requirements document is further reduced to 0.15 ＜ M≤0.4 scope, bypass pressure regulator valve
Valve opening also will be unreasonable interval interior in 0 ＜ X≤X1, it is therefore necessary to which take measures taking a step forward in bypass pressure regulator valve
Pressure is reduced, bypass pressure regulator valve is in reasonable operation interval.
The trial of orifice throttle was once carried out during conventional wind tunnel test, i.e., several spiral shells were processed on blind plate
Pit, blocks screwed hole to realize the aperture regulation of orifice plate by bolt.This method can also reach the purpose of step-down, shortcoming
It is exactly that bolt is arranged on inside pipeline, regulation aperture is required for, by pipeline pressure release, blind plate being dismantled repeatedly every time, this and advanced wind-tunnel
It is required that production efficiency high disagree.
Grace it is of the present utility model can on-line control aperture orifice fitting, blind plate central aperture be flabellum shape, rely on
Blade blocks the function that regulation aperture is realized in flabellum hole, and the turned position of blade is adjusted by regulating bolt to be realized, without dismounting
Pipeline, without pressure release, gas is without outward leakage, and aperture regulation is intuitively controllable for gas, with simple structure, the characteristics of easy for installation,
The scope of application is air dielectric, pressure rating PN2.5~PN25, nominal diameter DN50~DN600, aperture regulation scope 10%~
50%, it is the very strong orifice fitting of a set of practicality.
The content of the invention
The utility model provide it is a kind of can on-line control aperture orifice fitting, when solving conventional regulating orifice plate aperture
Wind-tunnel must stop production, and disassemble the deficiency that regulation recovers trystate again, and the ability with on-line control aperture is installed in place
Afterwards by rotating regulating bolt by control orifice plate aperture, without dismantling pipeline, gas without pressure release, without outward leakage open by gas
Degree regulation is directly perceived controllable, with simple structure, the characteristics of easy for installation, with very strong practicality.
It is of the present utility model can on-line control aperture orifice fitting include regulating bolt, ring flange, blade, rotating shaft and lock
Tight bolt, offers four passages of flabellum shape in the middle of the ring flange, the blade has and passage cooperation
Four sectors, be rotatably co-axially located on the ring flange, can be adjusted by the regulating bolt
The turned position of the blade reaches the purpose for blocking the passage, the protruded length of regulating bolt and the turned position of blade
With unique corresponding relation such that it is able to realize the function of regulation aperture.
It is preferred that the ring flange is flange opposite-clamped with the type of attachment of pipeline, the external diameter of the ring flange, bolt hole are straight
Footpath, sealing surface meet Flange Standard.
It is preferred that by presetting the passage aperture of the ring flange, and the shielded area of the blade is preset,
The function of initial opening can be realized setting.
It is preferred that after the clamping screw is tightened, the turned position of the blade is fixed.
It is preferred that the regulating bolt and the clamping screw each with the ring flange on screwed hole outer face coordinate
Place is provided with seal washer and locking nut, to realize the No leakage under rated operating pressure.
The utility model has the advantages that：
1st, it is of the present utility model can on-line control aperture orifice fitting, be capable of achieving orifice plate aperture without dismantling pipeline
Regulation, has the advantages that production efficiency is high；
2nd, it is of the present utility model can on-line control aperture orifice fitting, the ring flange of orifice plate meets Flange Standard, has
Blanket advantage.
3rd, it is of the present utility model can on-line control aperture orifice fitting, the passage aperture of ring flange can preset,
The shielded area of blade can also preset, such that it is able to set initial opening and adjustable range interior in a big way, with suitable
With the extensive advantage of performance.
4th, it is of the present utility model can on-line control aperture orifice fitting, sealing structure is simple and reliable, and compressed air is without outer
Leakage, has the advantages that without external leakage under rated operating pressure.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is ring flange schematic diagram.
Fig. 3 is blade schematic diagram.
Fig. 4 is typical bottom blowing type Asia across super wind-tunnel schematic diagram.
Fig. 5 is typical pressure regulation valve opening and pressure characteristic figure.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
As shown in figure 1, the utility model provide it is a kind of can on-line control aperture orifice fitting, its feature include regulation
Bolt 1, ring flange 2, blade 3, rotating shaft 4, clamping screw 5.
Four passages of flabellum shape (as shown in Figure 2) are opened in the middle of ring flange 2, blade 3 has and passage cooperation
Four sectors (as shown in Figure 3), are rotatably co-axially located on ring flange 2, and leaf is adjusted by regulating bolt 1
The turned position of piece 3 reaches the purpose for blocking passage, and the protruded length of regulating bolt 1 has only with the turned position of blade 3
One corresponding relation, so as to realize adjusting the function of aperture.
The passage aperture of ring flange 2 can preset, and the shielded area of blade 3 can also preset, by passage
Area and the various combination of shielded area, realize different initial openings and aperture increment.
After the adjustment of regulating bolt 1 completes the anglec of rotation of blade 3, clamping screw 5 is tightened, it is to avoid air-flow passes through blade 3
The vibrations for causing damage regulating bolt 1.
As shown in figure 4, ring flange 2 is flange opposite-clamped with the type of attachment of pipeline, the external diameter of ring flange 2, bolt hole are straight
The character symbol flange standard such as footpath, sealing surface form, can carry out seal for pipe joints using the gasket seal of standard.
The screwed hole of regulating bolt 1 and clamping screw 5 on ring flange 2 is the leak point of compressed gas, in screwed hole
Seal washer and locking nut are installed in outer face, realize the sealing under rated operating pressure.
The utility model processes the perforate of flabellum shape, in flange center's axle based on standard flange blind plate at middle part
Rotating shaft is installed, the blade for being similarly flabellum shape can be rotated centered on rotating shaft, and regulating bolt heads on the side of blade on line
Realize that blade rotates, the length outside regulating bolt has the transformational relation for determining with the anglec of rotation of blade, thereby determines that hole
Plate aperture, tightens clamping screw after aperture solidification locked.Compressed gas are mainly by regulating bolt and the screw thread of clamping screw
Hole is revealed, and seal washer and locking nut is installed outside screwed hole, it is ensured that No leakage under rated pressure.
The utility model need not dismantle pipeline, and gas is without pressure release, and aperture regulation is intuitively controllable, without outward leakage, with knot
Structure is simple, and the characteristics of easy for installation, the scope of application is air dielectric, and pressure rating PN2.5~PN25, nominal diameter DN50~
DN600, maximum opening increment 40%.
Claims (5)
1. it is a kind of can on-line control aperture orifice fitting, it is characterised in that：Including regulating bolt, ring flange, blade, rotating shaft and
Clamping screw, offers four passages of flabellum shape in the middle of the ring flange, the blade has matches somebody with somebody with the passage
Four sectors for closing, are rotatably co-axially located on the ring flange, can be adjusted by the regulating bolt
The turned position for saving the blade reaches the purpose for blocking the passage, the protruded length of regulating bolt and the rotation position of blade
Put with unique corresponding relation such that it is able to realize the function of regulation aperture.
2. it is according to claim 1 can on-line control aperture orifice fitting, it is characterised in that：The ring flange and pipeline
Type of attachment be flange opposite-clamped, the external diameter of the ring flange, diameter of bolt hole, sealing surface meet Flange Standard.
3. it is according to claim 1 can on-line control aperture orifice fitting, it is characterised in that：It is described by presetting
The passage aperture of ring flange, and the shielded area of the blade is preset, can realize setting the function of initial opening.
4. it is according to claim 1 can on-line control aperture orifice fitting, it is characterised in that：The clamping screw is tightened
Afterwards, the turned position of the blade is fixed.
5. it is according to claim 1 can on-line control aperture orifice fitting, it is characterised in that：The regulating bolt and institute
State clamping screw each with the ring flange on screwed hole outer face cooperation at seal washer and locking nut are installed, with
Realize the No leakage under rated operating pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621214880.3U CN206223395U (en) | 2016-11-10 | 2016-11-10 | Can on-line control aperture orifice fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621214880.3U CN206223395U (en) | 2016-11-10 | 2016-11-10 | Can on-line control aperture orifice fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206223395U true CN206223395U (en) | 2017-06-06 |
Family
ID=58793203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621214880.3U Withdrawn - After Issue CN206223395U (en) | 2016-11-10 | 2016-11-10 | Can on-line control aperture orifice fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206223395U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323585A (en) * | 2016-11-10 | 2017-01-11 | 中国航天空气动力技术研究院 | Pore plate capable of adjusting aperture online |
-
2016
- 2016-11-10 CN CN201621214880.3U patent/CN206223395U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323585A (en) * | 2016-11-10 | 2017-01-11 | 中国航天空气动力技术研究院 | Pore plate capable of adjusting aperture online |
| CN106323585B (en) * | 2016-11-10 | 2019-01-18 | 中国航天空气动力技术研究院 | Can on-line control aperture orifice fitting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170606 Effective date of abandoning: 20190118 |