CN108319305A - Spacecraft packing case automatic gas distribution system - Google Patents
Spacecraft packing case automatic gas distribution system Download PDFInfo
- Publication number
- CN108319305A CN108319305A CN201810111656.9A CN201810111656A CN108319305A CN 108319305 A CN108319305 A CN 108319305A CN 201810111656 A CN201810111656 A CN 201810111656A CN 108319305 A CN108319305 A CN 108319305A
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- packing case
- pressure
- distribution system
- air distribution
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Packages (AREA)
Abstract
The invention discloses a kind of spacecraft packing case automatic gas distribution systems, including solenoid valve, pressure sensor, mechanical pressure gauge, hand-operated valve, pressure reducer and pipeline, it is fitted to each other by solenoid valve, hand-operated valve, pressure reducer, realizes the stability contorting of spacecraft packing case internal gas.The present invention monitors in packing case or container suitable for products such as Aeronautics and Astronautics, ship, weapon, precision instruments, precise electronics and regulates and controls the pressure limit in packing case automatically transportational process, and the damage for making packaging box body be brought from pressure change, and from environmental pollution.
Description
Technical field
The invention belongs to spacecraft packing case technical fields, specifically, the present invention relates to a kind of spacecraft packing case from
Dynamic air distribution system supervises the pressure environment in packing case in confined space preservation or transportational process for spacecraft product
It surveys and controls.
Background technology
Spacecraft during preservation and needs to be placed in the packing case of sealing in transportational process, can generally be tieed up in packing case
The positive pressure for holding 0Pa~3000Pa, the gas being filled with are generally high pure nitrogen.Pressure to be maintained by packing case air distribution system complete
At.Air distribution system one end connects spacecraft packing case, and the other end connects high pressure, high purity source nitrogen.
Transport to respective firing base is needed to be emitted after the completion of spacecraft both domestic and external.It is needed in transportational process
Product is put into packing case, air distribution system, air-conditioning, vibration insulating system and the environmental monitoring system configured by packing case,
Ensure that the parameters such as temperature, humidity, cleanliness factor, mechanical environment, the pressure environment in packing case meet spacecraft storage and transport
It is required that index.Packing case has completely cut off the influence of spacecraft and ambient enviroment, but packing case external pressure can be with transportational process
Intermediate altitude height change is changed, and can constantly be changed, be made with local change of atmospheric pressure and variation of ambient temperature
The pressure inside packing case and the pressure outside packing case there are certain pressure differences.If external and internal pressure difference is negative pressure,
The structure of packing case can bear certain pressure, and packing case agent structure, or even damage spacecraft can be damaged when serious, is packed simultaneously
Gaseous environment gas outside case can penetrate into packing case, pollute packing case internal environment, endanger spacecraft safety.It needs at this time
By packing case distribution platform pure air or high pure nitrogen are filled with to packing case so that packing case inside and outside pressure maintains balance,
Or the internal pressure being slightly above outside packing case.If packing case internal pressure is more than design requirement higher than packing case external pressure
Safe threshold, needed at this time by the pressure inside packing case through air distribution system to emitting, ensure packing box structure and
The safety of spacecraft product.It can thus be seen that packing case air distribution system is heavy to closing for the control of packing case internal pressure
It wants, is spacecraft and the important safety assurance of packing case.The general volume of spacecraft packing case is larger, is packed in transportational process
Case is exposed to be mounted on the deck of automobile, train, and the pressure change of packing case needs monitoring in real time, and operating personnel can not be in vapour
It is monitored and operates on the deck of vehicle or train.Therefore the air distribution system of packing case is needed to have automatic and long-range monitoring, behaviour
The ability of work, to meet spacecraft transportation demand.
In addition, packing case during debugging or during spacecraft preserves in packing case, needs packing case air distribution system to have
Standby operating personnel can locally complete the inflation/deflation ability to packing case.
Based on the above content, at present there is an urgent need to a kind of easy to operate, simple in structure, at low cost, spacecraft can be completed
The air distribution system controling effectively to packing case internal pressure in packing case transportational process.
Invention content
It disclosure satisfy that the object of the present invention is to provide one kind and effectively controlling packing case internal pressure in spacecraft transportational process
The air distribution system of range, the system have the characteristics that easy to operate, simple in structure, at low cost, perfect in shape and function.
The air distribution system of spacecraft packing case provided by the present invention, one end pass through the discharge charge gas port and packet on packing case
Vanning connection, the inflating port of air distribution system is connected to by the other end by metal hose with pure air or purity nitrogen air source, and distribution
System is additionally provided with gas vent, and air distribution system is arranged between inflating port and packing case charge and discharge gas port in air distribution system inflates supervisor
It inflates and is set gradually under bleed pressure table, bleed pressure sensor, pressure reducer, pressure reducer on main line along inflation direction in road
Pressure sensor, pressure reducer downstream pressure table are swum, manual charge valve in parallel and inflation solenoid valve, followed by distribution are set later
System deflation pipeline one end intersects with inflation main line and shares inflation main line, and the other end connects venting solenoid valve；Pressure-measuring pipe
Road penetrates inflation main line in air distribution system and extends with inflation main line, is welded with the junction of inflation main line
Or special processing, pressure measurement pipeline one end connection pressure measurement pressure gauge and pressure measurement pressure sensor, other end extend into packing case
Inside is simultaneously fixed on packing case chamber interior wall, and pressure tap is not less than 10cm with the charge and discharge gas port spacing on packing case, wherein all
Sensor, pressure reducer, pressure gauge, valve be all electrically connected with the control unit in air distribution system, and by cable by external
Remote control apparatus controls.
Further, it when pressure is higher than required value in packing case, is opened in air distribution system by remote control apparatus
Venting solenoid valve deflates to packing case, until pressure is met the requirements in packing case.When in packing case pressure less than wanting
When evaluation, the inflation solenoid valve in air distribution system is opened again by remote control apparatus, packing case is inflated；Or hand
The dynamic manual charge valve opened in air distribution system, is inflated packing case, until pressure is met the requirements in packing case.
Further, control unit is electrically connected to by air plug connector on remote control apparatus.
Further, the gas in pure air or purity nitrogen air source first passes through filter progress before entering inflation main line
Filtering.
Further, the junction between the pipeline on air distribution system main line and packing case is clamp connection.
Packing case air distribution system provided by the present invention, has the characteristics that and advantage：
1. inflation/deflation can either be manually operated, and being capable of remote operation inflation/deflation；
2. inflation, deflation and pressure measurement circuit design are merged into one, pipe-line system is optimized, installation and reduction are facilitated
Requirement of the packing case air distribution system to packing case machinery；
3. packing case air distribution system, which may be implemented, can be monitored and control automatically work(to the pressure state in packing case
Can, it is not necessarily to human interaction.
Description of the drawings
Fig. 1 is the connection diagram of the packing case air distribution system and packing case of the present invention；
Wherein, 1, spacecraft packing case；2, the discharge charge gas port on packing case；3, air distribution system or abbreviation distribution platform；4, number
According to cable；5, remote control apparatus；6, metal hose is inflated；7, pure air or High Purity Nitrogen air source；8, gas vent.
Fig. 2 is the structural schematic diagram inside the packing case air distribution system of the present invention；
Wherein, 9, venting solenoid valve；10, filter；11, bleed pressure table；12, bleed pressure sensor；13, it depressurizes
Device；14, pressure reducer downstream pressure sensor；15, pressure reducer downstream pressure table；16, manual charge valve；17, control unit；18、
Cable；19, solenoid valve is inflated；20, pressure measurement pressure gauge；21, pressure measurement pressure sensor.
Fig. 3 be the present invention packing case air distribution system in pipeline portions enlarged diagram；
Wherein, 22, air distribution system loading line；23, air distribution system blowdown piping；24, air distribution system pressure measurement pipeline；25、
Pipeline on packing case.
Specific implementation mode
Introduced below is the specific implementation mode as content of the present invention, below by specific implementation mode to this
The content work of invention further illustrates.Certainly, description following detailed description is only the not Tongfang of the example present invention
The content in face, and should not be construed as the limitation scope of the invention.
Referring to Fig. 1, Fig. 1 be the present invention packing case air distribution system and packing case between connection diagram.The present invention's
Packing case air distribution system 3 is fixed on spacecraft packing case 1, and is connected by metal hose 6 and pure air or High Purity Nitrogen air source 7
It is logical, with when spacecraft packing case 1 needs inflation, air distribution system 3 is by pure air or high pure nitrogen by inflating metal hose 6
First it is filled in air distribution system.Spacecraft packing case is also with (the connection connection type of the interface of discharge charge gas port 2 on packing case
For clip), with when air pressure is low in packing case, the pure air or high pure nitrogen that are filled with by it in air distribution system.Distribution system
Control unit is set in system, is electrically connected with remote control apparatus 5 by cable 4, when the pressure in packing case is higher than required value
When, the gas in packing case is discharged outside packing case by the gas vent 8 on packing case for air distribution system, and wherein remote control is logical
Cross what control device and data cable 4 were realized.
Fig. 2 is the structural schematic diagram inside the packing case air distribution system of the present invention.When inflation, pure air or high-purity is opened
Nitrogen 7 (generally high pressure gas), gas enters filter 10 by metallic conduit 6.Filter 10 is by dust, the gold in gas
After the fifth wheels such as category bits are filtered, clean gas passes through bleed pressure table 11 and air source pressure sensor 12, the pressure of air source
Force value is shown.Bleed pressure is downgraded into demand pressure value by pressure reducer 13, and is sensed by pressure reducer downstream pressure
Device 14 and pressure reducer downstream pressure table 15 are shown.By opening manual charge valve 16 or inflation solenoid valve 19, clean sky
Gas or high pure nitrogen are filled in packing case.When deflation, venting solenoid valve 9 is opened, the gas in packing case is quickly arranged by gas vent 8
Go out into atmospheric environment.Pressure change in packing case case is shown by pressure measurement pressure gauge 20 and pressure measurement pressure sensor 21
Show.Pressure sensing and solenoid valve are connected to controller 17 by cable 18, convey distribution station information data by data cable 4
To remote control apparatus 5.Conveying people by remote control apparatus 5 can remote online check the phase of packing case and distribution platform
Off status information, and control command can be sent, distribution platform is operated, the pressure in regulation and control packing case to required value.
Fig. 3 be the present invention packing case air distribution system in distribution platform and packing case inflation/deflation pipeline enlarged diagram.
When pressurising, the source gas after decompression enters packing case by the pipeline 25 on air distribution system loading line 22 and packing case
It is interior.When deflation, the gas in packing case is discharged by pipeline 25, air distribution system blowdown piping 24 and the gas vent 8 on packing case
Into ambient air.Air distribution system pressure measurement pipeline 24 is hose, is provided for pressure measurement pressure gauge 20 and pressure measurement pressure sensor 21
It is connected to gas service in packing case.Air distribution system pressure measurement pipeline 24 should extend to certain distance in packing case, and suitable in tank wall
Hose port is fixed in position.
There is the packing case air distribution system of the present invention manual aerification function, remote manual to operate charging-discharging function, Yi Ji
The function that automatic inflatable/air management is carried out after packing case pressure limit is set in software.The component that the present invention needs is few, is
It unites simple in structure, system stability is high, and has many advantages, such as easy to operate, and installation maintenance is simple.
Although the specific implementation mode of the present invention is described in detail and is illustrated above, it should be noted that
We can make various changes and modifications the above embodiment, but these spirit without departure from the present invention and appended power
Profit requires recorded range.
Claims (5)
1. the air distribution system of spacecraft packing case, one end is connected to by the discharge charge gas port on packing case with packing case, and the other end is logical
It crosses metal hose to be connected to the inflating port of air distribution system with pure air or purity nitrogen air source, and air distribution system is additionally provided with deflation
Mouthful, air distribution system is set between inflating port and packing case charge and discharge gas port in air distribution system and inflates main line, along inflation direction, is filled
Bleed pressure table, bleed pressure sensor, pressure reducer, pressure reducer downstream pressure sensor, decompression are set gradually on gas main line
Manual charge valve in parallel and inflation solenoid valve is arranged, followed by air distribution system blowdown piping one end in device downstream pressure table later
Intersect with inflation main line and share inflation main line, the other end connects venting solenoid valve；Pressure measurement pipeline is worn in air distribution system
Enter to inflate main line and extend with inflation main line, welding or special processing, pressure measurement are carried out with the junction of inflation main line
Pipeline one end connects pressure measurement pressure gauge and pressure measurement pressure sensor, and other end extends into inside packing case and is fixed on packaging
On case chamber interior wall, the charge and discharge gas port spacing on pressure tap and packing case is not less than 10cm, wherein all sensor, decompression
Device, pressure gauge, valve are all electrically connected with the control unit in air distribution system, and by cable by external remote control apparatus control
System.
2. air distribution system as described in claim 1, wherein when pressure is higher than required value in packing case, pass through remote control
Device opens the venting solenoid valve in air distribution system, deflates to packing case, until pressure is met the requirements in packing case；
When pressure is less than required value in packing case, the inflation solenoid valve in air distribution system is opened again by remote control apparatus, it is right
Packing case is inflated；Or the manual manual charge valve opened in air distribution system, packing case is inflated, until packing case
Until interior pressure is met the requirements.
3. air distribution system as described in claim 1, wherein control unit is electrically connected to remote control apparatus by air plug connector
On.
4. air distribution system as described in claim 1, wherein the gas in pure air or purity nitrogen air source enters inflation main line
Filter is first passed through before to be filtered.
5. air distribution system as described in claim 1, wherein the connection between pipeline on air distribution system main line and packing case
Place is clamp connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810111656.9A CN108319305B (en) | 2018-02-05 | 2018-02-05 | Automatic gas distribution system for spacecraft packaging box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810111656.9A CN108319305B (en) | 2018-02-05 | 2018-02-05 | Automatic gas distribution system for spacecraft packaging box |
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| Publication Number | Publication Date |
|---|---|
| CN108319305A true CN108319305A (en) | 2018-07-24 |
| CN108319305B CN108319305B (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810111656.9A Active CN108319305B (en) | 2018-02-05 | 2018-02-05 | Automatic gas distribution system for spacecraft packaging box |
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| CN108319305B (en) | 2021-03-02 |
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