CN104502053B - Automatic inflation sealing system used for trisonic wind tunnel - Google Patents

Automatic inflation sealing system used for trisonic wind tunnel Download PDF

Info

Publication number
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
Authority
CN
China
Prior art keywords
valve
solenoid directional
directional control
air inlet
control valve
Prior art date
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.)
Expired - Fee Related
Application number
CN201410554439.9A
Other languages
Chinese (zh)
Other versions
CN104502053A (en
Inventor
陈良泽
张淑菊
石运军
许瑞锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gloomy Wind-Tunnel Engineering Of Beijing Space Flight Benefit Co Ltd
Original Assignee
Gloomy Wind-Tunnel Engineering Of Beijing Space Flight Benefit Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gloomy Wind-Tunnel Engineering Of Beijing Space Flight Benefit Co Ltd filed Critical Gloomy Wind-Tunnel Engineering Of Beijing Space Flight Benefit Co Ltd
Priority to CN201410554439.9A priority Critical patent/CN104502053B/en
Publication of CN104502053A publication Critical patent/CN104502053A/en
Application granted granted Critical
Publication of CN104502053B publication Critical patent/CN104502053B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)

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

Trisonic wind tunnel automatic inflating sealing system
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.
CN201410554439.9A 2014-10-17 2014-10-17 Automatic inflation sealing system used for trisonic wind tunnel Expired - Fee Related CN104502053B (en)

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

Applications Claiming Priority (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

Publications (2)

Publication Number Publication Date
CN104502053A CN104502053A (en) 2015-04-08
CN104502053B true CN104502053B (en) 2017-04-12

Family

ID=52943473

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410554439.9A Expired - Fee Related CN104502053B (en) 2014-10-17 2014-10-17 Automatic inflation sealing system used for trisonic wind tunnel

Country Status (1)

Country Link
CN (1) CN104502053B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (6)

* Cited by examiner, † Cited by third party
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
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 *

Also Published As

Publication number Publication date
CN104502053A (en) 2015-04-08

Similar Documents

Publication Publication Date Title
CN105651482B (en) A kind of control system and method for hypersonic wind tunnel stop valve and total pressure regulator valve
CN104534274B (en) A kind of SF6 self-filler and automatic inflating method thereof
CN201503503U (en) Automatic sounding balloon inflating device
CN105372025B (en) A kind of airtight testboard of hydraulic valve
CN104502053B (en) Automatic inflation sealing system used for trisonic wind tunnel
CN105382847B (en) Intelligent vacuum suction cup device
CN103487219B (en) A kind of Small General Aircraft passenger cabin and fuel tank integration air tightness detection system
CN111006842A (en) Novel inflatable sealing system and method for wind tunnel test
CN105459380B (en) A kind of bottle blowing machine compensates gas circuit
CN207923386U (en) Air-tightness detection device
CN206411087U (en) Nitrogen continuous feeding device and auto parts and components VOC test devices
CN207814927U (en) A kind of sulfur hexafluoride combined electric appliance gas charged for replacement control device
CN208966265U (en) Wellhead assembly is opened between gas well automation
CN207503059U (en) A kind of experiment inflation system
CN208780479U (en) Air feed experimental rig
CN203052205U (en) Pressure air distributing device of gas standard material configuration system
CN211936418U (en) Mixed gas partial pressure distributing device
CN106706855A (en) Nitrogen continuous supply device, automobile part VOC testing device and testing method
CN207416085U (en) A kind of wind pressure automatic control system
CN206010097U (en) A kind of gantry flame cuts bottle oxugen group
CN205350428U (en) Ratio is ratio valve for cabinet
CN203074682U (en) Calibration device of sphygmomanometer
CN206191274U (en) Large -traffic auto -feed -gas testing system
CN207334235U (en) Portable aerating case
CN206386318U (en) A kind of single cylinder boost module

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170412

Termination date: 20211017

CF01 Termination of patent right due to non-payment of annual fee