CN105527070B - The device and stable gas pressure means of the stable atmospheric pressure of wind-tunnel gauge pressure transducer - Google Patents
The device and stable gas pressure means of the stable atmospheric pressure of wind-tunnel gauge pressure transducer Download PDFInfo
- Publication number
- CN105527070B CN105527070B CN201510871322.8A CN201510871322A CN105527070B CN 105527070 B CN105527070 B CN 105527070B CN 201510871322 A CN201510871322 A CN 201510871322A CN 105527070 B CN105527070 B CN 105527070B
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- pressure
- box container
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- tunnel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
- G01M9/065—Measuring arrangements specially adapted for aerodynamic testing dealing with flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The device and stable gas pressure means of the stable atmospheric pressure of wind-tunnel gauge pressure transducer.The pressure measxurement of specified location measurement point is completed usually using gauge pressure transducer in wind tunnel test, because gauge pressure transducer typically uses the ambient atmosphere pressure of testing ground as reference pressure, when environment atmospheric pressure changes, measurement result of the gauge pressure transducer to pressure will be directly affected.The inventive method includes：Box container（1）, described box container side is equipped with one group of piezometer tube joint（2）, tube head sealing gasket is housed between described piezometer tube joint and described box container（3）, described box container top is provided with air filling and exhausting hole（4）, described air filling and exhausting hole and sealing ring（5）Coordinate, described sealing ring top is equipped with electromagnetic switch valve（6）, described box container opposite side is equipped with sealing plug（7）, spigot seal pad is housed between described sealing plug and described box container（8）.The present invention is used to stablize air pressure.
Description
Technical field：
The present invention relates to a kind of device of the stable atmospheric pressure of wind-tunnel gauge pressure transducer and stable gas pressure means.
Background technology：
In wind tunnel test specified location measurement point is completed usually using gauge pressure transducer（Such as wind-tunnel stagnation pressure, static pressure and mould
Type surface pressing）Pressure measxurement.Because gauge pressure transducer typically uses the ambient atmosphere pressure of testing ground as reference pressure,
Therefore, when environment atmospheric pressure changes（The reason for as temporarily rushed the sealing of formula trisonic wind tunnel, wind-tunnel flyoff process
In, larger change may occur for the ambient atmosphere pressure of testing ground）, measurement knot of the gauge pressure transducer to pressure will be directly affected
Fruit.
The content of the invention：
It is an object of the invention to provide a kind of device of the stable atmospheric pressure of wind-tunnel gauge pressure transducer and stable gas pressure means.
Above-mentioned purpose is realized by following technical scheme：
A kind of device of the stable atmospheric pressure of wind-tunnel gauge pressure transducer, its composition include：Box container, described box container
Side is equipped with one group of piezometer tube joint, and tube head sealing gasket, institute are housed between described piezometer tube joint and described box container
The box container top stated is provided with air filling and exhausting hole, and described air filling and exhausting hole coordinates with sealing ring, described sealing ring top dress
There is electromagnetic switch valve, described box container opposite side is equipped with sealing plug, described sealing plug and described box container
Between spigot seal pad is housed.
The device of the stable atmospheric pressure of described wind-tunnel gauge pressure transducer, described box container side is provided with one group of tube head
Socket, described tube head socket coordinate with described piezometer tube joint, and described box container opposite side is provided with plug and socket,
Described plug and socket and described sealing plug coordinate；Described piezometer tube joint is connected by pressure-measuring pipe and pressure sensor
Connect.
The stable gas pressure means of the device of the stable atmospheric pressure of described wind-tunnel gauge pressure transducer, by wind tunnel test during use
The pressure sensor used is connected to piezometer tube joint by pressure measurement flexible pipe, and pressure transmitter is put into inside box container, its cable
The connection of sealing plug and external device that line passes through right flank；When wind-tunnel does not dry state, electromagnetic switch valve is normally opened, outside
Air can be swapped by the air inside the air filling and exhausting hole and box container of box container top surface, now inside box container
Pressure be equal to ambient atmosphere pressure；Before wind-tunnel flyoff, electromagnetic switch valve is closed, and is closed container inside box container, pressure
Power is the environment atmospheric pressure of the preceding testing ground of blowing test；During wind-tunnel flyoff, due to being close inside box container
Container is closed, the change of ambient atmosphere pressure does not influence the pressure inside box container, therefore the pressure inside box container is protected all the time
Hold as ambient atmosphere pressure, stable reference pressure can be provided for gauge pressure transducer；After wind-tunnel flyoff terminates, electromagnetic switch valve
Open, extraneous air can carry out pressure balance by the air in the air filling and exhausting hole and box container of box container top surface.
Beneficial effect：
1. the pressure sensor used in wind tunnel test is connected to pressure-measuring pipe by pressure measurement flexible pipe when using and connect by the present invention
Head, pressure transmitter are put into inside box container, the connection of sealing plug and external device that its cable passes through right flank；
Wind-tunnel do not dry state when, electromagnetic switch valve is normally opened, and extraneous air can be held by the air filling and exhausting hole of box container top surface and casing
Air inside device swaps, and now the pressure inside box container is equal to ambient atmosphere pressure；Before wind-tunnel flyoff, electromagnetism
Switch valve is closed, and is closed container inside box container, and pressure is the environment atmospheric pressure of the preceding testing ground of blowing test；Wind-tunnel
During blowing test, due to being closed container inside box container, the change of ambient atmosphere pressure is not influenceed inside box container
Pressure, therefore the pressure inside box container remains ambient atmosphere pressure, and stable ginseng can be provided for gauge pressure transducer
Examine pressure；After wind-tunnel flyoff terminates, electromagnetic switch valve is opened, and extraneous air can pass through the air filling and exhausting hole of box container top surface
Pressure balance is carried out with the air in box container.
Testing ground ambient atmosphere pressure of the present invention before wind-tunnel flyoff is maintained by the way of box container seals
Power, reliable reference pressure is provided for gauge pressure transducer during wind tunnel test.And before wind-tunnel flyoff and wind-tunnel blows
After wind off-test, pressure and the technological approaches of testing ground environment atmospheric pressure in autobalance box container.Solves wind
Influence of the change of testing ground environment atmospheric pressure to surface probe measurement result during the experiment of hole.And skill of the present invention
The part of art scheme is few, and structure type is simple, solves when environment atmospheric pressure changes（As temporarily rushed formula trisonic wind tunnel
The reason for sealing, during wind-tunnel flyoff, larger change may occur for the ambient atmosphere pressure of testing ground）, gauge pressure is passed
The influence of sensor pressure measurements, improve the precision and accuracy of the device measuring result.
Brief description of the drawings：
Accompanying drawing 1 is the structural representation of the present invention.
Embodiment：
Embodiment 1：
A kind of device of the stable atmospheric pressure of wind-tunnel gauge pressure transducer, its composition include：Box container 1, described casing hold
Device side is equipped with one group of piezometer tube joint 2, and tube head sealing gasket is housed between described piezometer tube joint and described box container
3, described box container top is provided with air filling and exhausting hole 4, and described air filling and exhausting hole coordinates with sealing ring 5, described sealing ring
Top is equipped with electromagnetic switch valve 6, and described box container opposite side is equipped with sealing plug 7, described sealing plug and described
Spigot seal pad 8 is housed between box container.
Embodiment 2：
The device of the stable atmospheric pressure of wind-tunnel gauge pressure transducer according to embodiment 1, it is characterized in that：Described casing holds
Device side is provided with one group of tube head socket 9, and described tube head socket coordinates with described piezometer tube joint, described box container
Opposite side is provided with plug and socket 10, and described plug and socket and described sealing plug coordinate；Described piezometer tube joint leads to
Pressure-measuring pipe 11 is crossed to be connected with pressure sensor 12.
Embodiment 3：
A kind of stable gas pressure means of the device of the stable atmospheric pressure of wind-tunnel gauge pressure transducer using described in embodiment 1 or 2,
The pressure sensor used in wind tunnel test is connected to piezometer tube joint by pressure measurement flexible pipe during use, pressure transmitter is put into case
Inside body container, the connection of sealing plug and external device that its cable passes through right flank；When wind-tunnel does not dry state, electricity
Magnetic switch valve is normally opened, and extraneous air can be handed over by the air inside the air filling and exhausting hole and box container of box container top surface
Change, now the pressure inside box container is equal to ambient atmosphere pressure；Before wind-tunnel flyoff, electromagnetic switch valve is closed, and casing holds
It is closed container inside device, pressure is the environment atmospheric pressure of the preceding testing ground of blowing test；During wind-tunnel flyoff, by
It is closed container inside box container, the change of ambient atmosphere pressure does not influence the pressure inside box container, therefore casing holds
Pressure inside device remains ambient atmosphere pressure, and stable reference pressure can be provided for gauge pressure transducer；Blasting tries
After testing end, electromagnetic switch valve is opened, and extraneous air can pass through the sky in the air filling and exhausting hole and box container of box container top surface
Gas carries out pressure balance.
Claims (1)
1. a kind of stable gas pressure means of the device of the stable atmospheric pressure of wind-tunnel gauge pressure transducer, it is characterized in that：Described wind-tunnel table
The device composition of the stable atmospheric pressure of pressure sensor includes box container, and described box container side connects equipped with one group of pressure-measuring pipe
Head, is equipped with tube head sealing gasket between described piezometer tube joint and described box container, described box container top is set
There is air filling and exhausting hole, described air filling and exhausting hole coordinates with sealing ring, and described sealing ring top is equipped with electromagnetic switch valve, described case
Body container opposite side is equipped with sealing plug, and spigot seal pad is housed between described sealing plug and described box container；
Described box container side is provided with one group of tube head socket, and described tube head socket is matched somebody with somebody with described piezometer tube joint
Close, described box container opposite side is provided with plug and socket, and described plug and socket and described sealing plug coordinate；It is described
Piezometer tube joint be connected by pressure-measuring pipe with pressure sensor；
The pressure sensor used in wind tunnel test is connected to piezometer tube joint by pressure measurement flexible pipe during use, pressure transmitter is put
Enter inside box container, the connection of sealing plug and external device that its cable passes through right flank；Do not dried state in wind-tunnel
When, electromagnetic switch valve is normally opened, and extraneous air can be entered by the air inside the air filling and exhausting hole and box container of box container top surface
Row exchanges, and now the pressure inside box container is equal to ambient atmosphere pressure；Before wind-tunnel flyoff, electromagnetic switch valve is closed, case
It is closed container inside body container, pressure is the environment atmospheric pressure of the preceding testing ground of blowing test；Wind-tunnel flyoff process
In, due to being closed container inside box container, the change of ambient atmosphere pressure does not influence the pressure inside box container, therefore case
Pressure inside body container remains ambient atmosphere pressure, and stable reference pressure can be provided for gauge pressure transducer；Wind-tunnel blows
After wind off-test, electromagnetic switch valve is opened, and extraneous air can be in the air filling and exhausting hole and box container by box container top surface
Air carry out pressure balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510871322.8A CN105527070B (en) | 2015-12-02 | 2015-12-02 | The device and stable gas pressure means of the stable atmospheric pressure of wind-tunnel gauge pressure transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510871322.8A CN105527070B (en) | 2015-12-02 | 2015-12-02 | The device and stable gas pressure means of the stable atmospheric pressure of wind-tunnel gauge pressure transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105527070A CN105527070A (en) | 2016-04-27 |
| CN105527070B true CN105527070B (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510871322.8A Active CN105527070B (en) | 2015-12-02 | 2015-12-02 | The device and stable gas pressure means of the stable atmospheric pressure of wind-tunnel gauge pressure transducer |
Country Status (1)
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2078873U (en) * | 1990-08-02 | 1991-06-12 | 任志刚 | Means for suppressing the interference of wind pressure |
| JPH07270266A (en) * | 1994-03-31 | 1995-10-20 | Tokyo Gas Co Ltd | Pressure regulating equipment in gas meter |
| CN1176693A (en) * | 1995-02-28 | 1998-03-18 | 罗斯蒙德公司 | Pressure sensors and pressure transmitters |
| CN201765083U (en) * | 2010-05-10 | 2011-03-16 | 江苏核电有限公司 | Atmosphere reference-point pressure tapping device |
| CN102141458A (en) * | 2010-12-28 | 2011-08-03 | 唐山轨道客车有限责任公司 | Seal interface airtightness test platform for high-speed trains |
| CN102353495A (en) * | 2011-06-23 | 2012-02-15 | 天津市泰菲特仪器仪表技术有限公司 | Pressure measurement device applied to environments with non-standard atmospheric pressure |
| CN102778332A (en) * | 2011-05-11 | 2012-11-14 | 中国科学院光电研究院 | Micro differential pressure generating and calibrating device |
| KR20140074720A (en) * | 2012-12-10 | 2014-06-18 | 주식회사 포스코 | Fluid bed furnace having complex structure gas distribution portion |
| CN203940940U (en) * | 2014-06-13 | 2014-11-12 | 江苏多维科技有限公司 | A kind of sensor chip for many physical quantities |
| CN205120336U (en) * | 2015-12-02 | 2016-03-30 | 中国航空工业集团公司沈阳空气动力研究所 | Device of atmospheric pressure is stabilized to wind -tunnel gauge pressure sensor |
-
2015
- 2015-12-02 CN CN201510871322.8A patent/CN105527070B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2078873U (en) * | 1990-08-02 | 1991-06-12 | 任志刚 | Means for suppressing the interference of wind pressure |
| JPH07270266A (en) * | 1994-03-31 | 1995-10-20 | Tokyo Gas Co Ltd | Pressure regulating equipment in gas meter |
| CN1176693A (en) * | 1995-02-28 | 1998-03-18 | 罗斯蒙德公司 | Pressure sensors and pressure transmitters |
| CN201765083U (en) * | 2010-05-10 | 2011-03-16 | 江苏核电有限公司 | Atmosphere reference-point pressure tapping device |
| CN102141458A (en) * | 2010-12-28 | 2011-08-03 | 唐山轨道客车有限责任公司 | Seal interface airtightness test platform for high-speed trains |
| CN102778332A (en) * | 2011-05-11 | 2012-11-14 | 中国科学院光电研究院 | Micro differential pressure generating and calibrating device |
| CN102353495A (en) * | 2011-06-23 | 2012-02-15 | 天津市泰菲特仪器仪表技术有限公司 | Pressure measurement device applied to environments with non-standard atmospheric pressure |
| KR20140074720A (en) * | 2012-12-10 | 2014-06-18 | 주식회사 포스코 | Fluid bed furnace having complex structure gas distribution portion |
| CN203940940U (en) * | 2014-06-13 | 2014-11-12 | 江苏多维科技有限公司 | A kind of sensor chip for many physical quantities |
| CN205120336U (en) * | 2015-12-02 | 2016-03-30 | 中国航空工业集团公司沈阳空气动力研究所 | Device of atmospheric pressure is stabilized to wind -tunnel gauge pressure sensor |
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| Publication number | Publication date |
|---|---|
| CN105527070A (en) | 2016-04-27 |
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