CN105711853B - A kind of three valves linkage discharge mechanism and method for cockpit air test - Google Patents
A kind of three valves linkage discharge mechanism and method for cockpit air test Download PDFInfo
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- CN105711853B CN105711853B CN201410728221.0A CN201410728221A CN105711853B CN 105711853 B CN105711853 B CN 105711853B CN 201410728221 A CN201410728221 A CN 201410728221A CN 105711853 B CN105711853 B CN 105711853B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 238000012360 testing method Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000486406 Trachea Species 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- -1 inflation platform Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
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Abstract
The invention provides a kind of three valves linkage discharge mechanism for cockpit air test, including dc source, first relay, normally-closed pneumatic valve, second relay, first normally opened pneumatic operated valve, first three-way pipeline, second normally opened pneumatic operated valve, second three-way pipeline, first relay is connected with normally-closed pneumatic valve, second relay is connected with the first normally opened pneumatic operated valve and the second normally opened pneumatic operated valve respectively, dc source is powered to the first relay and the second relay respectively, outside air accumulator is connected by the first three-way pipeline with normally-closed pneumatic valve, another interface of first three-way pipeline is connected with the first normally opened pneumatic operated valve, normally-closed pneumatic valve is connected with outside cockpit by the second three-way pipeline, another interface of second three-way pipeline is connected with the second normally opened pneumatic operated valve, by outside air accumulator, normally-closed pneumatic valve forms the filling channel to outside cockpit, first bleed passage is formed by outside air accumulator and the first normally opened pneumatic operated valve, outside cockpit and second the second bleed passage of normally opened pneumatic operated valve formation.
Description
Technical field
The present invention relates to a kind of emergent discharge mechanism of three valves linkage for cockpit air test, aircraft is mainly used in quiet
Emergent unloading protecting when canopy is with cockpit air test in power experiment, improves experiment security.
Background technology
In general canopy and cockpit air test, generally using following airing form, Fig. 1 is seen.
This airing form can meet the inflation requirement needed for cockpit experiment, i.e. control system control inflation platform accurately
Inflation, air accumulator strengthens the airflow stability of gas replenishment process.But there are the following problems, cabin interior volume is smaller, and stores up
Gas tank inside stores a large amount of gases again, if after testpieces is destroyed or met an urgent need because of burst emergency scene, air accumulator
Inner high voltage gas can not be discharged quickly, still can be toward testpieces inner inflatable, and this may cause the destruction or two of testpieces
Secondary destruction.
Therefore, designing the following emergent discharge mechanism of three valves linkage is used for the safety issue for solving cockpit air test,
The present invention can be applied to flexibly in the small volume air test such as the cockpit, air intake duct, fuel tank of aircraft, and schematic diagram of device is shown in Fig. 2.
The content of the invention
The purpose of the present invention is that using a kind of emergent discharge mechanism of three valve linkage, it includes normally-closed pneumatic valve, normally opened pneumatic
Valve, control circuit etc., solve testpieces safety issue during cabin interior inflation.
The invention provides a kind of three valves linkage discharge mechanism for cockpit air test, it is characterised in that including straight
Flow power supply 1, the first relay 2, normally-closed pneumatic valve 3, the second relay 4, the first normally opened pneumatic operated valve 5, the first three-way pipeline 6, the
Two normally opened pneumatic operated valves 7, the relay of the second three-way pipeline 8 first are connected with normally-closed pneumatic valve, and the second relay is normal with first respectively
Drive pneumatic operated valve and the second normally opened pneumatic operated valve is connected, dc source is powered to the first relay and the second relay respectively, outside storage
Gas tank is connected by the first three-way pipeline with normally-closed pneumatic valve, another interface of the first three-way pipeline and the first normally opened pneumatic operated valve
It is connected, normally-closed pneumatic valve is connected with outside cockpit by the second three-way pipeline, another interface of the second three-way pipeline and second
Normally opened pneumatic operated valve be connected, the filling channel to outside cockpit is formed by outside air accumulator, normally-closed pneumatic valve, by outside air accumulator with
First the first bleed passage of normally opened pneumatic operated valve formation, outside cockpit and second the second bleed passage of normally opened pneumatic operated valve formation.
Increase after the device, filling channel when normal load can be provided, can in time be cut off in the case of emergent unloading again
Filling channel between air accumulator and cockpit, and can be that air accumulator and cockpit re-establish new bleed passage.So both
Prevent air accumulator gas from crossing to be charged to cabin interior, be conducive to the gas of cabin interior to discharge again, testpieces is reduced significantly because big
Amount gas overcharges the destruction or secondary destruction for causing canopy.
The invention provides a kind of three valves linkage Unloading Control method for cockpit air test, it is characterised in that bag
Include following steps：
Before experiment loading, control system does not send the voltage signal of experiment loading, and the first normally opened pneumatic operated valve 5, which is in, to be opened
State, normally-closed pneumatic valve 3 is closed, and the second normally opened pneumatic operated valve 7 is in open mode.
During experiment loading, the experiment on-load voltage that control system is sent to the first relay 2 and the second relay 4 simultaneously is believed
Number, under signal triggering and constant pressure driving, the first relay 2 opens normally-closed pneumatic valve 3, and the second relay 4 makes first normal
The normally opened pneumatic operated valve 7 of pneumatic operated valve 5 and second is driven to be closed.
In the case of unloading, control system sends the voltage signal of emergent unloading, under the triggering of the signal and constant pressure driving, the
One relay 2 closes normally-closed pneumatic valve 3, and the second relay 4 opens the first normally opened pneumatic operated valve 7 of normally opened pneumatic operated valve 5 and second.
The control method can realize voltage signal triggering under, normally-closed pneumatic valve 3, the first normally opened pneumatic operated valve 5 and second
The rapid coordination and response of normally opened pneumatic operated valve 7, solves manually-operated time delay, improves the safety of cockpit air test
Property.
Have the advantage that or good effect
Three valves linkage discharge mechanism has the advantage that：
A) device is assembled simple and convenient using the conventional pneumatic operated valve of new thought assembling；
B) device is using voltage signal triggering and air pressure driving, and response is rapid；
C) device can prevent a large amount of gases from overcharging, and can accelerate the discharge of cabin interior gas again；
D) device is controlled by control system electric signal, safe and reliable efficient.
Brief description of the drawings
Fig. 1 is canopy in the prior art and cockpit airing form schematic diagram；
Fig. 2 is the emergent discharge mechanism principle schematic of three valves linkage of the invention；
Fig. 3 is the non-pressurized state schematic diagram of the emergent discharge mechanism of three valves linkage；
Fig. 4 is the emergent discharge mechanism pressurized state schematic diagram of three valves linkage；
Fig. 5 is the emergent unloaded state schematic diagram of the emergent discharge mechanism of three valves linkage；
Fig. 6 is the emergent discharge mechanism top view of three valves linkage；
Fig. 7 is the emergent discharge mechanism partial view of three valves linkage
Embodiment
Refering to Fig. 2, Fig. 6 and Fig. 7, the three valves linkage discharge mechanism of cockpit air test of the invention, including dc source
1st, the first relay 2, normally-closed pneumatic valve 3, the second relay 4, the first normally opened pneumatic operated valve 5, the first three-way pipeline 6, second are normally opened
Pneumatic operated valve 7, the second three-way pipeline 8, the first relay are connected with normally-closed pneumatic valve, and the second relay is normally opened pneumatic with first respectively
Valve and the second normally opened pneumatic operated valve are connected, and dc source is powered to the first relay and the second relay respectively, and outside air accumulator leads to
Cross the first three-way pipeline to be connected with normally-closed pneumatic valve, another interface of the first three-way pipeline is connected with the first normally opened pneumatic operated valve,
Normally-closed pneumatic valve is connected with outside cockpit by the second three-way pipeline, another interface of the second three-way pipeline and the second normally opened gas
Dynamic valve is connected, and the filling channel to outside cockpit is formed by outside air accumulator, normally-closed pneumatic valve, normal by outside air accumulator and first
Open pneumatic operated valve the first bleed passage of formation, outside cockpit and second the second bleed passage of normally opened pneumatic operated valve formation.Prepare three valves connection
Dynamic emergent discharge mechanism original paper
Some original papers need to be prepared by assembling the emergent discharge mechanism of three valves linkage, and original paper see the table below 1.
The emergent discharge mechanism original paper of the valve of table 1 three linkage
| Sequence number | Title | Quantity |
| 1 | Normally opened pneumatic operated valve | 2 |
| 2 | Normally-closed pneumatic valve | 1 |
| 3 | Three-way pipeline | 2 |
| 4 | Corrugated pipe for pipeline | 2 |
| 5 | Connecting bolt | It is some |
| 6 | 10 meters of servo valve lines | 3 |
| 7 | Relay | 2 |
| 8 | 24V dc sources | 1 |
| 9 | 10 meters of pvc pipes | 3 |
A) the emergent discharge mechanism of three valves of assembling linkage
Three valves linkage discharge mechanism assembling process is as follows：Including 24V dc sources 1, the first relay 2, normally-closed pneumatic valve
3rd, the second relay 4, the first normally opened pneumatic operated valve 5, the first three-way pipeline 6, the second normally opened pneumatic operated valve 7, the second three-way pipeline 8, the
One relay is connected with normally-closed pneumatic valve, and the second relay is connected with the first normally opened pneumatic operated valve and the second normally opened pneumatic operated valve respectively,
24V dc sources are powered to the first relay and the second relay respectively, outside air accumulator by the first three-way pipeline with it is normally closed
Pneumatic operated valve is connected, and another interface of the first three-way pipeline is connected with the first normally opened pneumatic operated valve, normally-closed pneumatic valve and outside cockpit
It is connected by the second three-way pipeline, another interface of the second three-way pipeline is connected with the second normally opened pneumatic operated valve, by outside gas storage
Tank, normally-closed pneumatic valve form the filling channel to outside cockpit, and forming first with the first normally opened pneumatic operated valve by outside air accumulator puts
Gas passage, outside cockpit and second the second bleed passage of normally opened pneumatic operated valve formation.
B) the emergent discharge mechanism of three valves linkage and the other modules of experiment are attached, debugged
The emergent discharge mechanism of three valves assembled is arranged between air accumulator and cockpit, and respectively the device
PVC tracheaes are connected to source of the gas, and servo valve line is connected to control system, while source of the gas, inflation platform, air accumulator, cockpit and seat
The part such as cabin air pressure feedback transducer is installed one by one, after whole plate test loading system is installed, to the emergent unloading of three valves linkage
Device is debugged.
Source of the gas, opening control are first turned on, before not pressurizeing, confirms not pressurize by observing pneumatic operated valve status indicator lamp
Preceding state, the first normally opened pneumatic operated valve 5 be open, normally opened pneumatic operated valve 3 be close, the second normally opened pneumatic operated valve 7 be opening, refering to Fig. 3；
Then control system sends on-load voltage signal, and the first normally opened pneumatic operated valve 5, normally opened pneumatic operated valve 3, second are normally opened pneumatic
Valve has corresponding actions response simultaneously, again observe pneumatic operated valve status indicator lamp, the first normally opened pneumatic operated valve 5 for close, it is normally opened pneumatic
Valve 3 be open, the second normally opened pneumatic operated valve 7 be closing, refering to Fig. 4；
The emergent unloading in scene is finally simulated, plate test loading system emergency button is pressed, three pneumatic operated valve states is observed again,
First normally opened pneumatic operated valve 5 be open, normally opened pneumatic operated valve 3 be close, the second normally opened pneumatic operated valve 7 be opening, refering to Fig. 5.
Before experiment loading, when testing when loading and testing unloading under three kinds of states, three valves linkage discharge mechanism responds fast
Speed, state is correct, and Pass Test loading requires and solves the safety issue of cockpit air test, and so far three valves linkage is emergent
Discharge mechanism installation and debugging are finished.
Claims (2)
- The discharge mechanism 1. a kind of three valves for cockpit air test link, it is characterised in that including dc source (1), first Relay (2), normally-closed pneumatic valve (3), the second relay (4), the first normally opened pneumatic operated valve (5), the first three-way pipeline (6), second Normally opened pneumatic operated valve (7), the second three-way pipeline (8), the first relay are connected with normally-closed pneumatic valve, and the second relay is respectively with first Normally opened pneumatic operated valve and the second normally opened pneumatic operated valve are connected, and dc source is powered to the first relay and the second relay respectively, outside Air accumulator is connected by the first three-way pipeline with normally-closed pneumatic valve, another interface of the first three-way pipeline and first normally opened pneumatic Valve is connected, and normally-closed pneumatic valve is connected with outside cockpit by the second three-way pipeline, another interface of the second three-way pipeline and the Two normally opened pneumatic operated valves are connected, and the filling channel to outside cockpit are formed by outside air accumulator, normally-closed pneumatic valve, by outside air accumulator With first the first bleed passage of normally opened pneumatic operated valve formation, outside cockpit and second the second bleed passage of normally opened pneumatic operated valve formation.
- 2. a kind of three valve interlock methods for cockpit air test, it is characterised in that comprise the following steps：Before experiment loading, control system does not send the voltage signal of experiment loading, and the first normally opened pneumatic operated valve (5) is in open shape State, normally-closed pneumatic valve (3) is closed, and the second normally opened pneumatic operated valve (7) is in open mode；During experiment loading, the experiment on-load voltage that control system is sent to the first relay (2) and the second relay (4) simultaneously is believed Number, under signal triggering and constant pressure driving, the first relay (2) opens normally-closed pneumatic valve (3), and the second relay (4) makes First normally opened pneumatic operated valve (5) and the second normally opened pneumatic operated valve (7) are closed；In the case of emergent unloading, control system sends the voltage signal of emergent unloading, under the triggering of the signal and constant pressure driving, the One relay (2) closes normally-closed pneumatic valve (3), and the second relay (4) opens the first normally opened pneumatic operated valve (5) and second normally opened pneumatic Valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410728221.0A CN105711853B (en) | 2014-12-03 | 2014-12-03 | A kind of three valves linkage discharge mechanism and method for cockpit air test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410728221.0A CN105711853B (en) | 2014-12-03 | 2014-12-03 | A kind of three valves linkage discharge mechanism and method for cockpit air test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105711853A CN105711853A (en) | 2016-06-29 |
| CN105711853B true CN105711853B (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410728221.0A Active CN105711853B (en) | 2014-12-03 | 2014-12-03 | A kind of three valves linkage discharge mechanism and method for cockpit air test |
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| CN (1) | CN105711853B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111532449B (en) * | 2020-04-30 | 2023-05-23 | 中国飞机强度研究所 | Emergency protection device and high-pressure fluid pressurizing test device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2794719B1 (en) * | 1999-06-14 | 2001-09-28 | Sofrance Sa | AIR PURIFICATION EQUIPMENT, ESPECIALLY CAB AIR IN AIRCRAFT |
| DE102005037285A1 (en) * | 2005-08-08 | 2007-02-15 | Liebherr-Aerospace Lindenberg Gmbh | Method for operating an aircraft air conditioning system |
| JP2012066755A (en) * | 2010-09-27 | 2012-04-05 | Panasonic Corp | Airplane with deodorizing and disinfecting functions |
| CN102935896B (en) * | 2011-08-15 | 2015-01-28 | 中国航空工业集团公司西安飞机设计研究所 | Method for adjusting and controlling cabin pressure |
| FR2982846B1 (en) * | 2011-11-17 | 2014-02-07 | Turbomeca | METHOD AND ARCHITECTURE OF ENERGY RECOVERY IN AN AIRCRAFT |
| CN103487219B (en) * | 2013-09-30 | 2015-10-28 | 中航通飞华南飞机工业有限公司 | A kind of Small General Aircraft passenger cabin and fuel tank integration air tightness detection system |
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| CN105711853A (en) | 2016-06-29 |
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