CN207007243U - A kind of high-precision high voltage gas flow measurement and control device - Google Patents
A kind of high-precision high voltage gas flow measurement and control device Download PDFInfo
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- CN207007243U CN207007243U CN201720953773.0U CN201720953773U CN207007243U CN 207007243 U CN207007243 U CN 207007243U CN 201720953773 U CN201720953773 U CN 201720953773U CN 207007243 U CN207007243 U CN 207007243U
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Abstract
A kind of high-precision high voltage gas flow measurement and control device, including linear motion unit, control probe, control nozzle and mean velocity tube flowmeter unit, described linear motion unit includes shell, motor, decelerator, shaft coupling, leading screw, sleeve, nut, guiding and displacement transducer, leading screw is connected with nut thread, sleeve is fixedly connected with nut, sleeve coordinates with shell inner cavity gap, guide is slidably connected with the groove on shell, guide is fixedly connected with sleeve, displacement transducer is located on guide, and sleeve does linear reciprocating motion；Described control probe is fixedly connected with sleeve, and sleeve drives control probe linear reciprocating motion to extend into control nozzle so that control probe produces different cross-sectional at control nozzle venturi；The gas outlet end of control nozzle is connected by pipeline with mean velocity tube flowmeter unit.Present apparatus flow measurement and control precision are high, and air-tightness is good, workable, are applied to stable in power simulation wind tunnel test.
Description
Technical field
It the utility model is related to a kind of high-precision high voltage gas flow measurement and control device.
Background technology
For turboprop aircraft, propeller can produce larger dynamic effect, this dynamic effect to aircraft
Including directly affecting and influenceing indirectly.It is pneumatic to aircraft to directly affect pulling force, moment of torsion and normal force caused by mainly propeller
The added influence of characteristic；Influence to refer to that the interference caused by propeller high speed rotation between slip-stream and each part of aircraft is made indirectly
With, that is, the slip-stream of propeller influences, and this influence makes airplane ascensional force, resistance increase, under wash and change, the manipulation of aircraft
Property, stability and rudder effectiveness all effected.Propellerslip influences to set for the aircraft using turbo oar engine as power set
Success or failure are counted, play very important effect.Due to interfering with complexity between propeller and airframe, spiral shell at present
Revolve influence of the oar slip-stream to aircraft aerodynamic characteristic and mainly or by turboprop aircraft power simulate wind tunnel test to obtain,
This is a very important special test during aircraft development, be it is accurate obtain propellerslip to aircraft aerodynamic arrangement and
The main means that handling stability can influence.This just needs a kind of power analogue means of high power to weight ratio, and turbine air motor is
Most suitable selection, it has small volume, high-power feature, is more suitably applied to that test model size is smaller, needs spiral shell
Revolve oar drive device power and in very big propeller dynamic simulation trial.
For large-scale turbofan aircraft, engine-body integrated design is very crucial in aircraft development, and integration is set
, so as to save the energy, its economy is improved in respect of beneficial to the drag reduction lift-rising of large aircraft.But due to engine nacelle-hanger-machine
Structure and flow field are complicated between the wing, it is difficult to exact value simulation is carried out to being interfered between engine-body, so, band hair
The wind tunnel test of motivation simulation (TPS) is still to obtain intake and exhaust to influence aeroplane performance the main means of data.At present in state
Most advanced engine simulator is turbo-power simulator (TPS) on border.It can realize 100% exhaust analog capability, its
Intake simulation degree can realize 80%~90% charge flow rate coefficient analog capability, full machine model band turbo-power simulator
(TPS) simulated test is capable of the virtual condition of further simulation actual airplane Flow Field outside simultaneously for intake and exhaust.
Whether the drive device turbine air motor in propeller dynamic simulation trial, or turbofan aircraft intake and exhaust are moved
Drive device turbo-power simulator (TPS) in power simulated test, they are driven using high-pressure air source.This just needs
A kind of device that accurately can measure and control high-pressure gas flow.
Utility model content
In order to solve the above problems, the utility model provides a kind of high-precision high voltage gas flow measurement and filled with control
Put so that turbine air motor or turbo-power simulator (TPS) be precisely controlled to for may, so as to ensure that power simulates wind
Hole test data precision.
What the purpose of this utility model was realized in：A kind of high-precision high voltage gas flow measurement and control device, bag
Linear motion unit, control probe, control nozzle and mean velocity tube flowmeter unit are included,
Described linear motion unit includes shell, motor, decelerator, shaft coupling, leading screw, sleeve, nut, guiding and position
Displacement sensor, motor output shaft connection reducer, reducer output shaft are connected by shaft coupling with leading screw, and decelerator connects with shell
Connect, leading screw is connected with nut thread, and sleeve is fixedly connected with nut, and sleeve is located at enclosure, and matches somebody with somebody with shell inner cavity gap
Close, guide is slidably connected with the groove on shell, and guide is fixedly connected with sleeve, and displacement transducer is located on guide, electricity
Machine drives the rotation of leading screw forward and reverse, so that sleeve does linear reciprocating motion；
Described control probe is fixedly connected with sleeve, and sleeve drives control probe linear reciprocating motion to extend into control spray
In mouth so that control probe produces different cross-sectional at control nozzle venturi；The gas outlet end of control nozzle passes through pipeline
It is connected with mean velocity tube flowmeter unit, controls the gas access end of nozzle to be connected with air bridges balance measurement end, even speed tube flow
The gas outlet end of meter unit is connected with the pipeline of dynamic simulator.
The utility model also has following technical characteristic：
1st, described mean velocity tube flowmeter unit includes pressure probe, two level transmitter and temperature sensor, two level pick-up
Device connects pressure probe, pressure probe connection temperature sensor.
2nd, described mean velocity tube flowmeter unit is Torbar mean velocity tube flowmeter units.
The advantages of the utility model and have the beneficial effect that：Present apparatus flow measurement and control precision are high, and air-tightness is good,
It is workable, it is applied to stable in power simulation wind tunnel test.Measure ± 1% that accuracy is actual flow, measurement essence
Degree ± 0.1%.The utility model has critically important realistic meaning for power simulation wind tunnel test, is with turbine air motor
Or turbo-power simulator (TPS) simulates the indispensable equipment of wind tunnel test for the power of power source, simultaneously can be used for aircraft and blows
The outflow boundary-layer flowing control class experiment such as gas wing flap, its application prospect are very wide.
Brief description of the drawings
Fig. 1 is principle schematic of the present utility model.
Fig. 2 is linear motion unit structural representation of the present utility model.
Fig. 3 is mean velocity tube flowmeter cellular construction schematic diagram of the present utility model.
Embodiment
The utility model is further explained below according to Figure of description citing：
Embodiment 1
With reference to shown in Fig. 1-3, a kind of high-precision high voltage gas flow measurement and control device, including linear motion unit 1,
Probe 2, control nozzle 3 and mean velocity tube flowmeter unit 4 are controlled, described linear motion unit 1 includes shell 15, motor 5, subtracted
Fast device 6, shaft coupling 7, leading screw 8, sleeve 9, nut 16, guide 10 and displacement transducer 11, motor 5 export axis connection and slowed down
Device 6, the output shaft of decelerator 6 are connected by shaft coupling 7 with leading screw 8, and decelerator 6 is connected with shell 15, leading screw 8 and the screw thread of nut 16
Connection, sleeve 9 are fixedly connected with nut 16, and sleeve 9 is located inside shell 15, and coordinates with cavity gap in shell 15, guide
10 are slidably connected with the groove on shell, and guide 10 is fixedly connected with sleeve 9, and displacement transducer 11 is located on guide 10, are led to
Cross the feedback of displacement transducer, it is possible to achieve accurate control, linear precision≤0.1%, repeatability precision 0.01mm, the band of motor 5
The dynamic forward and reverse of leading screw 8 rotation, so that sleeve 9 does linear reciprocating motion；
Described control probe 2 is fixedly connected with sleeve 9, and sleeve 9 drives the control linear reciprocating motion of probe 2 to extend into control
In nozzle 3 processed so that control probe 2 produces different cross-sectional at the control venturi of nozzle 3, so as to realize the accurate control of flow
System；Gases at high pressure are divided into the dynamic simulator that two-way supplies aircraft both sides all the way by triplate line, in addition air bridges all the way
Balance is connected,
The gas outlet end of control nozzle 3 is connected by pipeline with mean velocity tube flowmeter unit 4, controls the gas of nozzle 3
Arrival end is connected with air bridges balance measurement end, the gas outlet end of mean velocity tube flowmeter unit 4 and the pipeline of dynamic simulator
It is connected.
Described mean velocity tube flowmeter unit 4 includes pressure probe 12, two level transmitter 13 and temperature sensor 14, two level
Transmitter 13 connects pressure probe 12, and pressure probe 12 connects temperature sensor 14.Described mean velocity tube flowmeter unit 4 is
Torbar mean velocity tube flowmeter units.Torbar mean velocity tube flowmeters unit is designed based on Pitot tube differential pressure flowmeter principle,
Flowing shape face, in addition to boundary layer influence are not only considered, measurement accuracy is higher, and measurement accuracy is ± the 1% of actual flow, is surveyed
Accuracy of measurement ± 0.1%, the conversion of mass flow and volume flow can also be realized by two level transmitter, remote transmission can be achieved
And display, thus can be in master control room real-time display and monitoring gas flow.
The present apparatus has critically important realistic meaning for power simulation wind tunnel test, is with turbine air motor or turbine
Dynamic simulator (TPS) simulates the indispensable equipment of wind tunnel test for the power of power source, simultaneously can be used for blowing aircraft wing flap
It is very wide Deng outflow boundary-layer flowing control class experiment, its application prospect.
Claims (3)
1. a kind of high-precision high voltage gas flow measurement and control device, including linear motion unit (1), control probe (2), control
Nozzle (3) processed and mean velocity tube flowmeter unit (4), it is characterised in that：
Described linear motion unit (1) includes shell (15), motor (5), decelerator (6), shaft coupling (7), leading screw (8), set
Cylinder (9), nut (16), guide (10) and displacement transducer (11), motor (5) output shaft connection reducer (6), decelerator
(6) output shaft is connected by shaft coupling (7) with leading screw (8), and decelerator (6) is connected with shell (15), leading screw (8) and nut (16)
Threaded connection, sleeve (9) are fixedly connected with nut (16), and sleeve (9) is located at shell (15) inside, and between shell (15) inner chamber
Gap coordinates, and guide (10) is slidably connected with the groove on shell, and guide (10) is fixedly connected with sleeve (9), displacement transducer
(11) on guide (10), motor (5) drives the rotation of leading screw (8) forward and reverse, so that sleeve (9) does reciprocating linear
Motion；
Described control probe (2) is fixedly connected with sleeve (9), and sleeve (9) drives control probe (2) linear reciprocating motion to stretch into
Into control nozzle (3) so that control probe (2) produces different cross-sectional at control nozzle (3) venturi；Control nozzle (3)
Gas outlet end be connected by pipeline with mean velocity tube flowmeter unit (4), control nozzle (3) gas access end and air bridges
Balance measurement end is connected, and the gas outlet end of mean velocity tube flowmeter unit (4) is connected with the pipeline of dynamic simulator.
2. a kind of high-precision high voltage gas flow measurement according to claim 1 and control device, it is characterised in that described
Mean velocity tube flowmeter unit (4) include pressure probe (12), two level transmitter (13) and temperature sensor (14), two level pick-up
Device (13) connection pressure probe (12), pressure probe (12) connection temperature sensor (14).
3. a kind of high-precision high voltage gas flow measurement according to claim 1 and control device, it is characterised in that described
Mean velocity tube flowmeter unit (4) be Torbar mean velocity tube flowmeter units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720953773.0U CN207007243U (en) | 2017-08-02 | 2017-08-02 | A kind of high-precision high voltage gas flow measurement and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720953773.0U CN207007243U (en) | 2017-08-02 | 2017-08-02 | A kind of high-precision high voltage gas flow measurement and control device |
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| Publication Number | Publication Date |
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| CN207007243U true CN207007243U (en) | 2018-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720953773.0U Active CN207007243U (en) | 2017-08-02 | 2017-08-02 | A kind of high-precision high voltage gas flow measurement and control device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462291A (en) * | 2017-08-02 | 2017-12-12 | 中国航空工业集团公司哈尔滨空气动力研究所 | A kind of high-precision high voltage gas flow measurement and control device |
| CN115901074A (en) * | 2022-12-13 | 2023-04-04 | 重庆大学 | Movable probe device for measuring pressure in flow channel of spray pipe |
-
2017
- 2017-08-02 CN CN201720953773.0U patent/CN207007243U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462291A (en) * | 2017-08-02 | 2017-12-12 | 中国航空工业集团公司哈尔滨空气动力研究所 | A kind of high-precision high voltage gas flow measurement and control device |
| CN115901074A (en) * | 2022-12-13 | 2023-04-04 | 重庆大学 | Movable probe device for measuring pressure in flow channel of spray pipe |
| CN115901074B (en) * | 2022-12-13 | 2024-06-04 | 重庆大学 | Movable probe device for measuring pressure in spray pipe flow channel |
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