CN206756420U - A kind of wind tunnel device for instrument verification - Google Patents
A kind of wind tunnel device for instrument verification Download PDFInfo
- Publication number
- CN206756420U CN206756420U CN201720145322.4U CN201720145322U CN206756420U CN 206756420 U CN206756420 U CN 206756420U CN 201720145322 U CN201720145322 U CN 201720145322U CN 206756420 U CN206756420 U CN 206756420U
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- China
- Prior art keywords
- air channel
- wind
- high speed
- air duct
- air
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Abstract
The utility model discloses a kind of wind tunnel device for instrument verification, including base, the base upper surface is provided with air channel, the inside compartment of terrain in the air channel is provided with air exhauster and radome fairing, the windward side of the radome fairing is in cone shape, and also include high speed air duct and multiple detection holes, one end of the high speed air duct is actively located in the inside in the air channel, its other end extend out to the outside in the air channel, and it is additionally provided with barrier sheet on the excircle of the high speed air duct, the barrier sheet is engaged with the circular air inlet end face in the air channel, multiple detection hole intervals are opened on the air channel, instrument for wind measurement is placed with the detection hole.The utility model can effectively improve the sensitivity and the degree of accuracy of its test, and by the way that instrument for wind measurement to be directly installed in detection hole and can be detected, its is easy to use, to place without particular/special requirement, has extensive promotion and application prospect in numerous small-size laboratories.
Description
Technical field
It the utility model is related to aerodynamic experiment technical field, more particularly to a kind of wind-tunnel dress for instrument verification
Put.
Background technology
Wind tunnel device is to produce and control in a manual manner air-flow, for simulating the mobility status of gas, and can be spent
Air-flow is measured to the action effect of entity and a kind of pipe-like experimental facilities of observation physical phenomenon, it is to carry out air force reality
Test one of the most frequently used, maximally effective instrument.
At present, industrial wind tunnel device precision is high, controlling is good, repeatable height, is that small-size laboratory carries out sky
The high, precision and frontier equipment that aerodynamic force is tested and research can not be asked more, but its cost is high.Therefore, for laboratory commonly use vane,
The instrument and equipments such as wind table, Pitot tube and test main frame, in addition to (calibration) is identified by qualification unit by specified period, usually because
Lack necessary platform and means fail to verify during carrying out and test, cause instrument often to go to work braving one's illness and do not find, influence in time
Detection work is smoothed out.
The content of the invention
The utility model is mainly to solve the technical problem in the presence of prior art, a kind of using simple side so as to provide
Just, sensitivity and the degree of accuracy it is high be used for instrument verification wind tunnel device.
Above-mentioned technical problem of the present utility model is mainly what is be addressed by following technical proposals：
Wind tunnel device provided by the utility model for instrument verification, including base, the base upper surface are provided with wind
Road, the inside compartment of terrain in the air channel are provided with air exhauster and radome fairing, and the windward side of the radome fairing is in cone shape, and also
Including high speed air duct and multiple detection holes, one end of the high speed air duct is actively located in the inside in the air channel, and its is another
End extend out to the outside in the air channel, and barrier sheet is additionally provided with the excircle of the high speed air duct, the barrier sheet with it is described
The circular air inlet end face in air channel is engaged, and being opened on the air channel for multiple detection hole intervals, is put in the detection hole
It is equipped with instrument for wind measurement.
Further, the instrument for wind measurement includes the first Pitot tube, the second Pitot tube, the first vane and wind table, and described
One Pitot tube is arranged between the outer surface of the radome fairing and the inwall in the air channel, and second Pitot tube is arranged on described
Between radome fairing and the high speed air duct, first vane and wind table are separately positioned on second Pitot tube and the high speed
Between air duct.
Further, the detection hole includes wind table hole, vane hole and Pitot pore, and the wind table hole is shaped as pros
Shape, and the surface in the wind table hole is fixed with Anti-air-leakage rubber, its medial surface is fixed with irony clip, the irony clip and institute
State wind table to be connected, first vane is located in the vane hole, and first Pitot tube, the second Pitot tube are located in institute
State in Pitot pore.
Further, first support bar and multiple second support bars are respectively equipped with the air channel, the radome fairing passes through
The first support bar is fixedly connected with the air channel, and the high speed air duct is slided by the second support bar and the air channel
Connection, wherein, multiple second support bars are angularly distributed along the outer surface of the high speed air duct respectively.
Further, the inside of the high speed air duct is additionally provided with the second vane.
Further, the air side in the air channel is also connected with a diffusion air duct.
Further, the air channel is made using PVC material.
The beneficial effects of the utility model are：By setting air exhauster, radome fairing and high speed air duct in the inside in air channel,
Using radome fairing and high speed air duct realize respectively pressure difference survey wind and at a high speed survey wind, so as to effectively improve its test sensitivity and
The degree of accuracy, and by the way that instrument for wind measurement to be directly installed in detection hole and can be detected, its is easy to use, to place without
Particular/special requirement, there is extensive promotion and application prospect in numerous small-size laboratories.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the wind tunnel device of the present utility model for instrument verification.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to be made to the scope of protection of the utility model
Define.
As shown in fig.1, the wind tunnel device of the present utility model for instrument verification, including base 1, the upper surface of base 1
Provided with air channel 2, the inside compartment of terrain in air channel 2 is provided with air exhauster 3 and radome fairing 4, and the windward side of radome fairing 4 is in cone shape, with
And also including high speed air duct 5 and multiple detection holes 8, one end of high speed air duct 5 is actively located in the inside in air channel 2, and its is another
End extend out to the outside in air channel 2, and barrier sheet 7 is additionally provided with the excircle of high speed air duct 5, barrier sheet 7 and the annular in air channel 2
Air intake end face is engaged, and what multiple detection holes 8 were spaced is opened on air channel 2, and instrument for wind measurement 9 is placed with detection hole 8.
In the present embodiment, radome fairing 4 can be formed using irony thin plate rivet clasp, and its windward side is in cone shape, mainly
In order to which the ventilation section of annular can be formed between the inwall in air channel 2, and reduce windage, realized so as to coordinate with big cross section
Pressure difference surveys wind, and certainly, under different use occasions, radome fairing 4 can also be made using other materials.The present embodiment
In, high speed air duct 5 can be formed using irony thin plate rivet clasp, can be by a high speed when needing to verify the high wind speed data of vane
Air duct 5 is located in the inlet side in air channel 2, the circular air inlet section in air channel 2 is blocked with barrier sheet 7, now, in high speed air duct 5
Air-flow is that high speed is distinguished and admirable；When high wind speed state need not be verified, high speed air duct 5 can also be taken out out of air channel 2, reduce wind
Resistance and space occupancy rate.
It is preferred that instrument for wind measurement 9 includes the first Pitot tube 91, the second Pitot tube 92, the first vane 93 and wind table 94, first
Pitot tube 91 is arranged between the outer surface of radome fairing 4 and the inwall in air channel 2, and the second Pitot tube 92 is arranged on radome fairing 4 and height
Between fast air duct 5, the first vane 93 and wind table 94 are separately positioned between the second Pitot tube 92 and high speed air duct 5.The present embodiment
In, the first Pitot tube 91 can gather the static pressure and total head of small ventilation section part, and it is disconnected that the second Pitot tube 92 can gather big ventilation
Static pressure and total head at face, wind is surveyed so as to simulated implementation pressure difference, it can not only verify the gas permeability of Pitot tube, but also
The sealing of hose and the sensitivity of main frame and accuracy etc. can be detected.
In the utility model, for the ease of the fixed vane 93 of wind table 94 and first, and the sealing of device is improved, detection
Hole 8 includes wind table hole 81, vane hole 82 and Pitot pore 85, and wind table hole 81 is shaped as square, and the surface in wind table hole 81
Anti-air-leakage rubber 83 is fixed with, its medial surface is fixed with irony clip 84, and irony clip 84 is connected with wind table 94, and described first
Vane 93 is located in vane hole 82, and the first Pitot tube 91, the second Pitot tube 92 are located in Pitot pore 85.First vane 93
It is mainly used in low wind speed test, and vane hole 82 and wind table 94 associate the passage of cable with the first vane 93.
Specifically, first support bar 10 and multiple second support bars 11 are respectively equipped with air channel 2, radome fairing 4 passes through first
Support bar 10 is fixedly connected with air channel 2, and high speed air duct 5 is slidably connected by second support bar 11 and air channel 2, wherein, in order to just
In stress equalization, multiple second support bars 11 are angularly distributed along the outer surface of high speed air duct 5 respectively.
In the utility model, the inside of high speed air duct 5 is additionally provided with the second vane 12.Second vane 12 is mainly used in high wind speed
Test.
Preferably, for the ease of the wind direction in the exit of air channel 2 is guided and controlled, the air side in air channel 2 is also with one
Diffusion air duct 6 is connected.And in order to reduce cost, air channel 2 is made using PVC material.
In summary, the utility model has the advantage of：
By setting air exhauster 3, radome fairing 4 and high speed air duct 5 in the inside in air channel 2, radome fairing 3 and high speed winds are utilized
Cylinder 4 realizes that pressure difference surveys wind and surveys wind at a high speed respectively, so as to effectively improve the sensitivity and the degree of accuracy of its test, and by that will survey
Bearing device 9 is directly installed in detection hole 8 and can detected, and its is easy to use, to place without particular/special requirement, numerous
Small-size laboratory has extensive promotion and application prospect.
More than, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited thereto,
Any change or replacement expected without creative work, should all cover within the scope of protection of the utility model.Therefore,
The scope of protection of the utility model should be determined by the scope of protection defined in the claims.
Claims (7)
1. a kind of wind tunnel device for instrument verification, including base, it is characterised in that：The base upper surface is provided with air channel,
The inside compartment of terrain in the air channel is provided with air exhauster and radome fairing, and the windward side of the radome fairing is in cone shape, and is also wrapped
High speed air duct and multiple detection holes are included, one end of the high speed air duct is actively located in the inside in the air channel, its other end
The outside in the air channel is extend out to, and barrier sheet is additionally provided with the excircle of the high speed air duct, the barrier sheet and the wind
The circular air inlet end face in road is engaged, and multiple detection hole intervals are opened on the air channel, is placed in the detection hole
There is instrument for wind measurement.
2. the wind tunnel device for instrument verification as claimed in claim 1, it is characterised in that：The instrument for wind measurement includes first
Pitot tube, the second Pitot tube, the first vane and wind table, first Pitot tube be arranged on the outer surface of the radome fairing with it is described
Between the inwall in air channel, second Pitot tube is arranged between the radome fairing and the high speed air duct, first vane
And wind table is separately positioned between second Pitot tube and the high speed air duct.
3. the wind tunnel device for instrument verification as claimed in claim 2, it is characterised in that：The detection hole includes wind table
Hole, vane hole and Pitot pore, the wind table hole is shaped as square, and the surface in the wind table hole is fixed with Anti-air-leakage glue
Skin, its medial surface are fixed with irony clip, and the irony clip is connected with the wind table, and first vane is located in described
In vane hole, first Pitot tube, the second Pitot tube are located in the Pitot pore.
4. the wind tunnel device for instrument verification as claimed in claim 3, it is characterised in that：Is respectively equipped with the air channel
One support bar and multiple second support bars, the radome fairing is fixedly connected by the first support bar with the air channel, described
High speed air duct is slidably connected by the second support bar and the air channel, wherein, multiple second support bars are respectively along institute
The outer surface for stating high speed air duct is angularly distributed.
5. the wind tunnel device for instrument verification as claimed in claim 4, it is characterised in that：The inside of the high speed air duct is also
Provided with the second vane.
6. the wind tunnel device for instrument verification as claimed in claim 5, it is characterised in that：The air side in the air channel also with
One diffusion air duct is connected.
7. the wind tunnel device for instrument verification as claimed in claim 1, it is characterised in that：The air channel uses PVC material
It is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720145322.4U CN206756420U (en) | 2017-02-17 | 2017-02-17 | A kind of wind tunnel device for instrument verification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720145322.4U CN206756420U (en) | 2017-02-17 | 2017-02-17 | A kind of wind tunnel device for instrument verification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206756420U true CN206756420U (en) | 2017-12-15 |
Family
ID=60609662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720145322.4U Expired - Fee Related CN206756420U (en) | 2017-02-17 | 2017-02-17 | A kind of wind tunnel device for instrument verification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206756420U (en) |
-
2017
- 2017-02-17 CN CN201720145322.4U patent/CN206756420U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20190217 |