CN104502053B - Automatic inflation sealing system used for trisonic wind tunnel - Google Patents
Automatic inflation sealing system used for trisonic wind tunnel Download PDFInfo
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- CN104502053B CN104502053B CN201410554439.9A CN201410554439A CN104502053B CN 104502053 B CN104502053 B CN 104502053B CN 201410554439 A CN201410554439 A CN 201410554439A CN 104502053 B CN104502053 B CN 104502053B
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Abstract
The invention discloses an automatic inflation sealing system used for a trisonic wind tunnel. The system comprises an air inlet pipe, a first inflation branch, a second inflation branch, a gas collecting pipe, a deflation pipe, and a control device. The trisonic wind tunnel comprises a transition segment, a test segment, an over-expending segment, an over-expending segment adjusting sheet, and a flexible segment. The system can automatically operate according to process flow of inflation and deflation, saving inflation and deflation time of the inflation sealing system, improving wind tunnel test efficiency, and operation accuracy is greatly improved.
Description
Technical field
The present invention relates to gas-flow closure system, it is particularly a kind of move for trisonic wind tunnel inside or change part from
Dynamic gas-flow closure system.
Background technology
Inside trisonic wind tunnel, there are many parts that need to be moved or change, such as test section, fixed wall nozzle and ultra-expanded section
Deng, need to open wind-tunnel in the test preparatory stage, need mobile or change these parts, due to wind-tunnel day-to-day test number of times compared with
It is many, in order to reduce mobile or replacing construction, test efficiency is improved, therefore, wind-tunnel more adopts gas-flow closure system.Tradition is done
Method adopts manual inflation and bleed air operation, i.e., at on-test, by manually carrying out manually-operated gate switching manipulation realization to scene
Inflation, after off-test, then is realized deflating by manually operation manually-operated gate.And trisonic wind tunnel test at present is increasingly various,
Using manually-operated mode, test time is not only wasted, and professional need to be set is operated, test efficiency
Reduce, experimentation cost increased.It is therefore desirable to gas-flow closure system is designed to automatic mode, not only save into
This, and test efficiency is improved, and the also no automatic inflating sealing system of trisonic wind tunnel at present.
The content of the invention
In order to solve the above problems, the invention provides a kind of trisonic wind tunnel automatic inflating sealing system, described three
Velocity of sound wind-tunnel includes changeover portion, test section, ultra-expanded section, ultra-expanded section adjustment sheet and telescopic section, the automatic inflating sealing system bag
Include：Air inlet pipeline, the air inlet of the air inlet pipeline are connected with the gas outlet of source of the gas, along the air inlet on the air inlet pipeline
The gas outlet direction of the air inlet of pipeline to the air inlet pipeline sets gradually filter, first manual stop valve, first pressure
Table, the first electromagnetic switch valve and first pressure sensor；First inflation branch, it is described first inflation branch air inlet with it is described
The gas outlet connection of air inlet pipeline, the gas outlet of the first inflation branch are communicated to the gas-flow closure circle of the changeover portion,
It is described first inflation branch on along described first inflation branch air inlet to described first inflation branch gas outlet direction according to
The second hand stop valve of secondary setting, the second electromagnetic switch valve, the first air relief valve, second pressure sensor, the first solenoid directional control valve
With the 3rd pressure transducer；Second inflation branch, the air inlet of the second inflation branch and the gas outlet of the air inlet pipeline
Connection, the air inlet in the described second inflation branch along the described second inflation branch is to the described second gas outlet for inflating branch
Direction sets gradually the 3rd hand stop valve, the 3rd electromagnetic switch valve, the second air relief valve and the 4th pressure transducer；Discharge,
The air inlet of the discharge is connected with the gas outlet of the described second inflation branch, the first gas outlet second of the discharge
Solenoid directional control valve and the 5th pressure transducer are connected with the gas-flow closure circle of the test section, the second gas outlet of the discharge
The 3rd solenoid directional control valves of Jing and the 6th pressure transducer are connected with the gas-flow closure circle of the ultra-expanded section, and the 3rd of the discharge the
The 4th solenoid directional control valve of gas outlet and the 7th pressure transducer are connected with the gas-flow closure circle of the ultra-expanded section adjustment sheet, described
The 5th solenoid directional control valve of 4th gas outlet and the 8th pressure transducer of discharge is connected with the gas-flow closure circle of the telescopic section
It is logical；Blowdown piping, the first air inlet of the blowdown piping pass through pipeline and first solenoid directional control valve, second electromagnetism
Reversal valve, the 3rd solenoid directional control valve, the 4th solenoid directional control valve are connected with the 5th solenoid directional control valve, the deflation
Second air inlet of pipeline is connected with the 5th gas outlet of the discharge by the 4th electromagnetic switch valve, the blowdown piping
Gas outlet is connected with ambient atmosphere by pipeline；Control device, is sensed with first electromagnetic switch valve, the first pressure
Device, second electromagnetic switch valve, the second pressure sensor, first solenoid directional control valve, the 3rd pressure sensing
Device, the 3rd electromagnetic switch valve, the 4th pressure transducer, second solenoid directional control valve, the 5th pressure sensing
Device, the 3rd solenoid directional control valve, the 6th pressure transducer, the 4th solenoid directional control valve, the 7th pressure sensing
The connection of device, the 5th solenoid directional control valve, the 8th pressure transducer and the 4th electromagnetic switch valve.
In automatic inflating sealing system as above, it is preferable that noise reduction is installed at the gas outlet of the blowdown piping
Device.
In automatic inflating sealing system as above, it is preferable that the automatic inflating sealing system also includes：First peace
Full valve and the second relief valve；First relief valve is arranged in the first inflation branch, and the with the blowdown piping
One air inlet is by pipeline communication, and is located between the second pressure sensor and first solenoid directional control valve；Described
Two relief valve are arranged in the second inflation branch, and pass through pipeline communication with the first air inlet of the blowdown piping, and
Between the 4th pressure transducer and the air inlet of the discharge.
In automatic inflating sealing system as above, it is preferable that the source of the gas comes from the total of the trisonic wind tunnel
The gas conveyed on pipeline before valve.
In automatic inflating sealing system as above, it is preferable that the control device includes：Controller, the control
The analog input channel AI of device and the first pressure sensor, second electromagnetic switch valve, second pressure sensing
Device, the 3rd pressure transducer, the 4th pressure transducer, the 5th pressure transducer, the 6th pressure sensing
Device, the 7th pressure transducer and the 8th pressure transducer connection, the On-off signal passage DO of the controller with
First electromagnetic switch valve, second electromagnetic switch valve, first solenoid directional control valve, the 3rd electromagnetic switch valve,
Second solenoid directional control valve, the 3rd solenoid directional control valve, the 4th solenoid directional control valve, the 5th solenoid directional control valve and
The 4th electromagnetic switch valve connection；Input block, is connected with the controller, to carry out man-machine interaction；And power subsystem,
Power supply is provided for the controller.
In automatic inflating sealing system as above, it is preferable that master of the controller also with the trisonic wind tunnel
Control system is connected by Profibus-DP bus communications module.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
(1), wind tunnel air supply is reduced pressure by the present invention using multichannel, is met different part seal pressure demands, is changed using electromagnetism
The switching of inflation and blowdown piping is realized to valve, and all valves, pressure gauge, pressure transducer are integrated into into a switch board
Inside, easy to operate, reliability is high.
(2), the present invention adopts programmable logic controller (PLC) PLC to gas piping in gas-flow closure system and valve portion partial pressure
Force transducer carries out data acquisition, and electromagnetic switch valve and electromagnetic switch are controlled, and can enter with deflation technological process by inflation
Row is automatically brought into operation, and saves the inflation of gas-flow closure system and deflation time, improves wind tunnel test efficiency, and be greatly enhanced
The accuracy of operation.
(3), can realize that gas-flow closure system for field is operated by liquid crystal touch screen, and Profibus-DP is carried by PLC
Communication module, is attached with wind-tunnel master control system PLC, realizes that data are uploaded and instruction issuing, so as to realize the system remote
Automatically control.Using this operational approach, manpower is saved, reduce experimentation cost.
Description of the drawings
Fig. 1 is a kind of pipeline and valve portion of trisonic wind tunnel automatic inflating sealing system provided in an embodiment of the present invention
Divide schematic diagram；
Fig. 2 is a kind of structural representation of control device provided in an embodiment of the present invention；
Fig. 3 is a kind of inflation automatic flow of trisonic wind tunnel automatic inflating sealing system provided in an embodiment of the present invention
Schematic diagram；
Fig. 4 is a kind of deflation automatic flow of trisonic wind tunnel automatic inflating sealing system provided in an embodiment of the present invention
Schematic diagram.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention is described in further details.
Referring to Fig. 1, a kind of trisonic wind tunnel automatic inflating sealing system is embodiments provided, for trisonics
Wind turbine apparatus move or change part sealing, after wind-tunnel has changed part, before test is carried out, need to be by gap between part
Sealing is realized using sealing ring inflation, after test is completed, sealing ring internal gas need to be drained, separate two parts,
To change, wherein, trisonic wind tunnel includes：Changeover portion, test section, ultra-expanded section, ultra-expanded section adjustment sheet and telescopic section, this is automatic
Gas-flow closure includes：Air inlet pipeline, the first inflation branch, the second inflation branch, discharge, blowdown piping and control device.
Wherein, air inlet pipeline is used to convey trisonic wind tunnel sealing gas, and its air inlet is connected with the gas outlet of source of the gas,
On air inlet pipeline along its air inlet to its gas outlet direction set gradually filter PT1, first manual stop valve VC2, first
Pressure gauge G1, the first electromagnetic switch valve V1 and first pressure sensor P2.It is preferred that, before source of the gas is for the main valve of trisonic wind tunnel
The gas conveyed on pipeline, specifically, the pipeline connection before the air inlet of air inlet pipeline and the main valve of trisonic wind tunnel, i.e., from
Pipeline between the main valve of trisonic wind tunnel takes gas.
First inflation branch is for the changeover portion conveying sealing gas to trisonic wind tunnel, its air inlet and air inlet pipeline
Gas outlet connects, and its gas outlet is communicated to the gas-flow closure circle of changeover portion, goes out to which along its air inlet in the first inflation branch
QI KOU direction sets gradually the second hand stop valve VC3, the second electromagnetic switch valve V2, the first air relief valve VR1, second pressure sensing
Device P3, the first solenoid directional control valve V4 and the 3rd pressure transducer P5；
For conveying gas to discharge, its air inlet is connected second inflation branch with the gas outlet of air inlet pipeline, air inlet
The gas outlet of pipeline forms threeway with the air inlet of the air inlet and the first inflation branch of the second inflation branch, in the second inflation point
Set gradually the 3rd hand stop valve VC4, the 3rd electromagnetic switch valve V3, second subtract along its air inlet to its gas outlet direction on road
Pressure valve VR2 and the 4th pressure transducer P4；
Discharge is for the gas mixing by the second inflation branch is come from, and mixed gas is delivered to three respectively
The gas-flow closure circle of the test section of velocity of sound wind-tunnel, ultra-expanded section, ultra-expanded section adjustment sheet and telescopic section, its air inlet and the second inflation point
The gas outlet connection on road, first gas outlet the second solenoid directional control valve V5 of discharge and the 5th pressure transducer P6 and test section
The connection of gas-flow closure circle, the second gas outlet the 3rd solenoid directional control valve V6 and the 6th pressure transducer P7 of discharge and super expansion
The gas-flow closure circle connection of section, the 3rd gas outlet the 4th solenoid directional control valve V7 and the 7th pressure transducer P8 of discharge with it is super
Expand the gas-flow closure circle connection of section adjustment sheet, the 5th solenoid directional control valve V8 of the 4th gas outlet of discharge and the 8th pressure sensing
Device P9 is connected with the gas-flow closure circle of telescopic section；In order to expand the scope of application of the automatic inflating sealing system, discharge is also wrapped
The 6th gas outlet is included, is connected with reserved opening by electromagnetic switch valve V10, i.e., as reserved branch road.
Blowdown piping for after wind tunnel test terminates by the changeover portion of trisonic wind tunnel, test section, ultra-expanded section, ultra-expanded section
In the gas-flow closure circle gas of adjustment sheet and telescopic section and discharge, gas is released, i.e., blowdown piping is emptying branch road of deflating, its
First air inlet is by pipeline and the first solenoid directional control valve V4, the second solenoid directional control valve V5, the 3rd solenoid directional control valve V6, the 4th electric
Magnetic reversal valve V7 and the 5th solenoid directional control valve V8 connections, the second air inlet of blowdown piping is by the 4th electromagnetic switch valve V9 and collection
The 5th gas outlet connection of trachea, the gas outlet of blowdown piping is connected with ambient atmosphere by pipeline；
It should be noted that " first ", " second " ... " the 8th " in above-mentioned just for the sake of on word to element,
For example hand stop valve, air relief valve, electromagnetic switch valve, solenoid directional control valve, pressure gauge and pressure transducer make a distinction, and are not
Which is defined, the effect to element below is illustrated：Arbitrary hand stop valve is used for manually opened or cuts out gas；Appoint
One air relief valve is for gas pressure is reduced to specified pressure；Arbitrary electromagnetic switch valve is electrically to make with arbitrary solenoid directional control valve
With lower open and close or change gas open flow direction valve, arbitrary electromagnetic switch valve be preferred 2/2-way valve, Ren Yi electricity
Magnetic reversal valve two position three-way valve；Arbitrary pressure gauge is shown for pressure with arbitrary pressure transducer.
So that wind tunnel air supply pressure is as 2MPa as an example, changeover portion, test section, ultra-expanded section, ultra-expanded section adjustment sheet to wind-tunnel and
At the gas-flow closure circle of telescopic section, supply gas pressure is illustrated, and the gas-flow closure circle supply gas pressure of changeover portion is 0.8～2.0MPa,
Preferably 1.0MPa, at the part gas-flow closure circle of other four wind-tunnel, supply gas pressure is 0.8～1.2MPa, preferably
0.8MPa, using when, the automatic inflating sealing system inner pressure relief valve output pressure scope should be according to wind-tunnel seal member：Inflation
Sealing ring, required gas-flow closure pressure limit is selecting.In practice, the model of air relief valve can select QTYa-L20；Electromagnetic switch
The model of valve can select Z2/2DCF6-0, and the model of solenoid directional control valve can select Z2/3DCF6-0, aforementioned two kinds of electromagnetic valves
Control for direct current 24V；The model of hand stop valve can select Y5704.2-91；Manometric model can select YB-150.BT；Pressure
The model of force transducer can select YZD-2B, and which is output as 4-20mA, the embodiment of the present invention not to aforementioned each valve, pressure gauge and
The concrete model of pressure transducer is defined.
Branch and the second inflation branch are inflated by arranging first, air inlet pipeline is reduced pressure, to meet different sealing
The need of pressure (or the supply gas pressure at different gas-flow closure circles), by realizing inflation using solenoid directional control valve and abandoning pipeline
Switching.Air inlet pipeline, the first inflation branch, the second inflation branch, discharge and blowdown piping are referred to as loading line and valve
Part, which is used to realize taking gas on pipeline from before trisonic wind tunnel main valve, gas is conveyed by gas decompression to seal pressure
To at specified gas-flow closure.Realize that process is as follows：Gas is taken on pipeline from before wind-tunnel main valve, be connected to automatic inflating sealing system
Gas circuit entrance, by filter F T1, hand stop valve VC2, pressure gauge G1, electromagnetic switch main valve V1, pressure transducer P1, gas
Road is divided into two-way：Lead up to hand stop valve VC3, electromagnetic switch valve V2, air relief valve VR1, pressure transducer P3, relief valve
VS1, solenoid directional control valve V4 and pressure transducer P5 are supplied to changeover portion gas-flow closure circle；Another road manually stop valve VC4,
Electromagnetic switch valve V3, air relief valve VR2, pressure transducer P4, relief valve VS2 are supplied to discharge, are connected six with discharge
Road, wherein first four are connected to solenoid directional control valve and pressure transducer respectively, respectively to test section, ultra-expanded section, ultra-expanded section adjustment sheet,
Telescopic section gas-flow closure circle is supplied, and Article 5 branch road is emptying branch road of deflating, after wind tunnel test is completed, through electromagnetic switch valve
With deafener, all gas-flow closure circles and internal system gas are emptied, Article 6 branch road is reserved branch road.Following control dresses
Put referred to as electric control system.
Referring to Fig. 2, control device carries out data acquisition for the pressure transducer to loading line and valve portion, to electricity
Magnetic switch valve and solenoid directional control valve are controlled (i.e. switching manipulation) and are automatically brought into operation with deflation technological process with realizing inflating.Tool
Body ground, wherein, itself and the first electromagnetic switch valve V1, first pressure sensor P2, the second electromagnetic switch valve V2, second pressure are sensed
Device P3, the first solenoid directional control valve V4, the 3rd pressure transducer P5, the 3rd electromagnetic switch valve V3, the 4th pressure transducer P4, second
Solenoid directional control valve V5, the 5th pressure transducer P6, the 3rd solenoid directional control valve V6, the 6th pressure transducer P7, the 4th electromagnetic switch
Valve V7, the 7th pressure transducer P8, the 5th solenoid directional control valve V8, the 8th pressure transducer P9 and the 4th electromagnetic switch valve V9 connect
Connect, for gathering first pressure sensor P2, second pressure sensor P3, the 3rd pressure transducer P5, the 4th pressure transducer
P4, the 5th pressure transducer P6, the 6th pressure transducer P7, the data of the 7th pressure transducer P8 and the 8th pressure transducer P9
To the first electromagnetic switch valve V1, the second electromagnetic switch valve V2, the first solenoid directional control valve V4, the 3rd electromagnetic switch valve V3, second electric
Magnetic reversal valve V5, the 3rd solenoid directional control valve V6, the 4th solenoid directional control valve V7, the 5th solenoid directional control valve V8 and the 4th electromagnetic switch valve
The switch of V9 is controlled.
Specifically, control device includes：Controller, for realization is controlled to solenoid directional control valve, electromagnetic switch valve certainly
The automatic inflating of dynamic sealing system and deflation, in practice, carry out operation realization by operation program.The analog input of controller
Passage AI and first pressure sensor, the second electromagnetic switch valve, second pressure sensor, the 3rd pressure transducer, the 4th pressure
The connection of sensor, the 5th pressure transducer, the 6th pressure transducer, the 7th pressure transducer and the 8th pressure transducer, control
The On-off signal passage DO of device is opened with the first electromagnetic switch valve, the second electromagnetic switch valve, the first solenoid directional control valve, the 3rd electromagnetism
Close valve, the second solenoid directional control valve, the 3rd solenoid directional control valve, the 4th solenoid directional control valve, the 5th solenoid directional control valve and the 3rd electromagnetism to open
Close valve connection；
Input block, is connected with controller, to carry out man-machine interaction, so as to realize the scene behaviour of automatic inflating sealing system
Make；And
Power subsystem, provides power supply for controller, and which includes：DC source PW1 and air switch QF1.
Controller in electric control system, for example, can be programmable logic controller (PLC) PLC, be System Control Center, lead to
Cross operation program to realize the automatic inflating of automatic inflating sealing system and deflate, input equipment can for example be liquid crystal touch screen,
For human users, air switch is used for PLC with DC source and electromagnetic valve is powered, and PLC inside solidification programs mainly include
Auto-reset function, automatic inflating function and automatic deflation function.
Pressure transducer output signal in gas-flow closure system is linked into into programmable logic controller (PLC) PLC analog inputs
Data acquisition is carried out on passage AI, and all electromagnetic switch valves and solenoid directional control valve are linked into into PLC On-off signal passage DO
On carry out switching manipulation, PLC inside solidification programs, program are worked out with deflation technological process by inflation, and realization is to gas tube
Road and valve portion are automatically brought into operation.Human-computer interaction interface by liquid crystal touch screen realize, liquid crystal touch screen inside solidification interface program,
Communicated with PLC by communication cable, realized that system for field is operated by human-computer interaction interface.PLC carries Profibus-DP
Communication module, is attached with wind-tunnel master control system PLC, realizes that data are uploaded and instruction issuing, so as to realize the system remote
Operation.
In practice, programmable logic controller (PLC) PLC, can select the PLC of SIEMENS companies production, model CPU
226CN, and it is configured with analog input AI modules, model EM231.Liquid crystal touch screen, can select the production of SIEMENS companies
TP277.System PLC is also configured with the S7-400 types of Profibus-DP bus communications module EM277 and the configuration of wind-tunnel master control system
PLC is connected, and configures the slave station of PLC as the wind-tunnel master control system.
In order to reduce atmospheric pipe by the noise produced in gas purge, install at the gas outlet of blowdown piping
There is deafener X.
In order to improve the safety of automatic inflating sealing system, after the pressure in pipeline exceedes specified pressure, the system
Energy automatic deflation reduces pressure with protection system, i.e. overpressure protection, and the automatic inflating sealing system also includes：First relief valve
VS1 and the second relief valve VS2；First relief valve VS1 is arranged in the first inflation branch, and the first air inlet with blowdown piping
By pipeline communication, and it is located between second pressure sensor P3 and the first solenoid directional control valve V4；Second relief valve VS2 is arranged on
In second inflation branch, and with the first air inlet of blowdown piping by pipeline communication, and positioned at the 4th pressure transducer P4 and
Between the air inlet of discharge.
Loading line that automatic inflating sealing system includes and valve portion and electric control system are all installed in one
Inside switch board, carry out integrated design and make.
Automatic inflating functional sequence and automatic deflation to automatic inflating sealing system provided in an embodiment of the present invention below
The flow process of function is illustrated：
System aeration step is as follows：First tri- hand stop valves of VC1, VC2, V3 cut out, gas-flow closure control station is connected
Power supply key switch is got to " power supply " position, system electrification by power supply.Before test, it is manual that artificial order opens V1, V2 and V3
Stop valve, performs automatic inflating flow process as shown in Figure 3, and system inflation is finished.
System deflation step is as follows：Automatic deflation flow process is performed as shown in Figure 4, and after treating that deflation is finished, artificial order is closed
Close V1, V2 and V3 hand stop valve.
In sum, the embodiment of the present invention has the beneficial effect that：
(1) wind tunnel air supply is reduced pressure by the present invention using multichannel, meets different part seal pressure demands, using electromagnetic switch
Valve realizes the switching of inflation and blowdown piping, and all valves, pressure gauge, pressure transducer are integrated in a switch board
Portion, easy to operate, reliability is high.
(2) present invention adopts programmable logic controller (PLC) PLC to gas piping in gas-flow closure system and valve portion partial pressure
Force transducer carries out data acquisition, and electromagnetic switch valve and electromagnetic switch are controlled, and can enter with deflation technological process by inflation
Row is automatically brought into operation, and saves the inflation of gas-flow closure system and deflation time, improves wind tunnel test efficiency, and be greatly enhanced
The accuracy of operation.
(3) can realize that gas-flow closure system for field is operated by liquid crystal touch screen, and Profibus-DP is carried by PLC
Communication module, is attached with wind-tunnel master control system PLC, realizes that data are uploaded and instruction issuing, so as to realize the system remote
Automatically control.Using this operational approach, manpower is saved, reduce experimentation cost.
Unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (6)
1. a kind of trisonic wind tunnel automatic inflating sealing system, the trisonic wind tunnel include changeover portion, test section, super expand
Section, ultra-expanded section adjustment sheet and telescopic section, it is characterised in that the automatic inflating sealing system includes：
Air inlet pipeline, the air inlet of the air inlet pipeline are connected with the gas outlet of source of the gas, on the air inlet pipeline along it is described enter
The gas outlet direction of the air inlet of air pipe to the air inlet pipeline sets gradually filter, first manual stop valve, the first pressure
Power table, the first electromagnetic switch valve and first pressure sensor；
First inflation branch, the air inlet of the first inflation branch are connected with the gas outlet of the air inlet pipeline, and described first
The gas outlet of inflation branch is communicated to the gas-flow closure circle of the changeover portion, fills along described first in the described first inflation branch
The air inlet on edema caused by disorder of QI road sets gradually the second hand stop valve, the second electromagnetism to the gas outlet direction of the described first inflation branch and opens
Close valve, the first air relief valve, second pressure sensor, the first solenoid directional control valve and the 3rd pressure transducer；
Second inflation branch, the air inlet of the second inflation branch are connected with the gas outlet of the air inlet pipeline, described the
Air inlet in two inflation branches along the described second inflation branch is set gradually to the gas outlet direction of the described second inflation branch
3rd hand stop valve, the 3rd electromagnetic switch valve, the second air relief valve and the 4th pressure transducer；
Discharge, the air inlet of the discharge are connected with the gas outlet of the described second inflation branch, and the first of the discharge
The second solenoid directional control valve of gas outlet and the 5th pressure transducer are connected with the gas-flow closure circle of the test section, the discharge
The 3rd solenoid directional control valve of the second gas outlet and the 6th pressure transducer connect with the gas-flow closure circle of the ultra-expanded section, it is described
The 4th solenoid directional control valve of 3rd gas outlet of discharge and the 7th pressure transducer are close with the inflation of the ultra-expanded section adjustment sheet
Seal connection, the 5th solenoid directional control valve of the 4th gas outlet of the discharge and the 8th pressure transducer and the telescopic section
Gas-flow closure circle is connected；
Blowdown piping, the first air inlet of the blowdown piping is by pipeline and first solenoid directional control valve, described second electric
Magnetic reversal valve, the 3rd solenoid directional control valve, the 4th solenoid directional control valve are connected with the 5th solenoid directional control valve, described to put
Second air inlet of air pipe is connected with the 5th gas outlet of the discharge by the 4th electromagnetic switch valve, the blowdown piping
Gas outlet connected with ambient atmosphere by pipeline；
Control device, with first electromagnetic switch valve, the first pressure sensor, second electromagnetic switch valve, described
It is second pressure sensor, first solenoid directional control valve, the 3rd pressure transducer, the 3rd electromagnetic switch valve, described
It is 4th pressure transducer, second solenoid directional control valve, the 5th pressure transducer, the 3rd solenoid directional control valve, described
It is 6th pressure transducer, the 4th solenoid directional control valve, the 7th pressure transducer, the 5th solenoid directional control valve, described
8th pressure transducer and the 4th electromagnetic switch valve connection.
2. automatic inflating sealing system according to claim 1, it is characterised in that pacify at the gas outlet of the blowdown piping
Equipped with deafener.
3. automatic inflating sealing system according to claim 1, it is characterised in that the automatic inflating sealing system is also wrapped
Include：First relief valve and the second relief valve；
First relief valve is arranged in the first inflation branch, and passes through pipe with the first air inlet of the blowdown piping
Road is connected, and is located between the second pressure sensor and first solenoid directional control valve；
Second relief valve is arranged in the second inflation branch, and passes through pipe with the first air inlet of the blowdown piping
Road is connected, and between the 4th pressure transducer and the air inlet of the discharge.
4. automatic inflating sealing system according to claim 1, it is characterised in that the source of the gas comes from the trisonics
The gas conveyed on pipeline before the main valve of wind-tunnel.
5. automatic inflating sealing system according to claim 1, it is characterised in that the control device includes：
Controller, the analog input channel AI of the controller and the first pressure sensor, second electromagnetic switch
Valve, the second pressure sensor, the 3rd pressure transducer, the 4th pressure transducer, the 5th pressure sensing
The connection of device, the 6th pressure transducer, the 7th pressure transducer and the 8th pressure transducer, the controller
On-off signal passage DO and first electromagnetic switch valve, second electromagnetic switch valve, first solenoid directional control valve, institute
State the 3rd electromagnetic switch valve, second solenoid directional control valve, the 3rd solenoid directional control valve, the 4th solenoid directional control valve, institute
State the 5th solenoid directional control valve and the 4th electromagnetic switch valve connection；
Input block, is connected with the controller, to carry out man-machine interaction；And
Power subsystem, provides power supply for the controller.
6. automatic inflating sealing system according to claim 5, it is characterised in that the controller also with the trisonics
The master control system of wind-tunnel is connected by Profibus-DP bus communications module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410554439.9A CN104502053B (en) | 2014-10-17 | 2014-10-17 | Automatic inflation sealing system used for trisonic wind tunnel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410554439.9A CN104502053B (en) | 2014-10-17 | 2014-10-17 | Automatic inflation sealing system used for trisonic wind tunnel |
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| CN104502053A CN104502053A (en) | 2015-04-08 |
| CN104502053B true CN104502053B (en) | 2017-04-12 |
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| CN111006842A (en) * | 2019-11-29 | 2020-04-14 | 中国航天空气动力技术研究院 | Novel inflatable sealing system and method for wind tunnel test |
| CN112611540A (en) * | 2020-12-30 | 2021-04-06 | 中国航天空气动力技术研究院 | Flexible inflation wind tunnel test model pressure self-adaptive adjusting device and method |
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| DE3144636C1 (en) * | 1981-11-10 | 1983-05-19 | Basten GmbH, 5401 St Goar | Fluid dynamics inspection system for vents (outlets) guiding gaseous media, in particular chimney stack attachments (open-worked chimney tops) |
| CN201407486Y (en) * | 2009-05-06 | 2010-02-17 | 上海创洁科技有限公司 | Bulk special gas supply system |
| CN102537395A (en) * | 2012-01-01 | 2012-07-04 | 浙江石化阀门有限公司 | Electric isolating valve |
| CN103063398A (en) * | 2012-12-28 | 2013-04-24 | 中国人民解放军国防科学技术大学 | Hypersonic wind tunnel experiment module |
| CN103629362A (en) * | 2013-12-17 | 2014-03-12 | 北京航天益森风洞工程技术有限公司 | Two-layer inflation sealing device of wind tunnel telescopic section |
| CN103867896A (en) * | 2014-03-14 | 2014-06-18 | 南京理工大学 | Constant pressure high-pressure gas decompression system |
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2014
- 2014-10-17 CN CN201410554439.9A patent/CN104502053B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3144636C1 (en) * | 1981-11-10 | 1983-05-19 | Basten GmbH, 5401 St Goar | Fluid dynamics inspection system for vents (outlets) guiding gaseous media, in particular chimney stack attachments (open-worked chimney tops) |
| CN201407486Y (en) * | 2009-05-06 | 2010-02-17 | 上海创洁科技有限公司 | Bulk special gas supply system |
| CN102537395A (en) * | 2012-01-01 | 2012-07-04 | 浙江石化阀门有限公司 | Electric isolating valve |
| CN103063398A (en) * | 2012-12-28 | 2013-04-24 | 中国人民解放军国防科学技术大学 | Hypersonic wind tunnel experiment module |
| CN103629362A (en) * | 2013-12-17 | 2014-03-12 | 北京航天益森风洞工程技术有限公司 | Two-layer inflation sealing device of wind tunnel telescopic section |
| CN103867896A (en) * | 2014-03-14 | 2014-06-18 | 南京理工大学 | Constant pressure high-pressure gas decompression system |
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| 小型高超声速风洞的设计研究;沈逢京等;《第五届中国航空学会青年科技论坛》;20121008;第97-101页 * |
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|---|---|
| CN104502053A (en) | 2015-04-08 |
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