CN108516073A - A kind of holding flexible container inside and outside differential pressure constant device - Google Patents
A kind of holding flexible container inside and outside differential pressure constant device Download PDFInfo
- Publication number
- CN108516073A CN108516073A CN201810254333.5A CN201810254333A CN108516073A CN 108516073 A CN108516073 A CN 108516073A CN 201810254333 A CN201810254333 A CN 201810254333A CN 108516073 A CN108516073 A CN 108516073A
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- CN
- China
- Prior art keywords
- flexible container
- valve
- differential pressure
- outside differential
- solenoid valve
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64B—LIGHTER-THAN AIR AIRCRAFT
- B64B1/00—Lighter-than-air aircraft
- B64B1/58—Arrangements or construction of gas-bags; Filling arrangements
- B64B1/62—Controlling gas pressure, heating, cooling, or discharging gas
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Control Of Fluid Pressure (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention be suitable for keep flexible container inside and outside differential pressure it is constant, it is therefore an objective to atmospheric environment, temperature fluctuation and self-defect it is multiple under the influence of, for keep flexible container inside and outside differential pressure it is constant, a kind of holding flexible container inside and outside differential pressure constant device is provided.Apparatus of the present invention include；First valve, solenoid valve, gas cylinder, PLC control system, flexible container, thermometer, difference gauge, the second valve, absolute pressure meter, when pressure change in flexible container, difference gauge registration is compared with the pressure value set in PLC control system, PLC control system controls solenoid valve entrance location and aperture according to comparison result, flexible container is set to deflate or inflate, to keep flexible container inside and outside differential pressure constant.
Description
Technical field
The present invention is suitable for keeping flexible container inside and outside differential pressure constant, it can also be used to it is permanent to be kept fixed container inside and outside differential pressure
It is fixed.
Background technology
Flexible container is widely used in military field and daily life, by taking floating dirigible as an example, as near space
Multi-functional flying platform is widely used in high-precision earth observation, communication relay, regional early warning, area navigation etc., it mainly according to
Remain aerial resident by the buoyancy of large volume flexibility utricule, have coverage area is big, payload is big, maneuverability, operation at
The features such as this is low, the representative are " the high-altitude sentries " in the U.S., gannet etc..Common dirigible is internal at work to be needed to be maintained at
The slight positive pressure state of 200-600Pa, but due to the defect of the infiltration of gas molecule, material itself, inevitably exist certain
Leakage.In order to be kept for the effective time in sky, flexible container inside and outside differential pressure is constant is particularly important for maintenance.
Since the Systems Theory and experiment that keep inside and outside differential pressure constant for this kind of micro-pressure-difference, big volume, flexible container are ground
Study carefully and lack very much, how to realize that floating platform utricule inside and outside differential pressure is constant, is the critical issue for being badly in need of solving always.For floating
Flexible container under micro-pressure-difference as dirigible, using atmospheric environment as pressure reference, and the fluctuation of atmospheric pressure is high in experimentation
Up to hundreds of Pa, it is difficult to ensure that the accurate stable of pressure reference, while temperature fluctuation can also produce bigger effect experimental result.Institute
With atmospheric environment, temperature fluctuation and self-defect leak it is multiple under the influence of, it is difficult to keep flexible container inside and outside differential pressure constant.
Therefore, it is badly in need of designing a kind of holding flexible container inside and outside differential pressure constant device.
Invention content
The purpose of the present invention is atmospheric environment, temperature fluctuation and self-defect it is multiple under the influence of, hold to keep flexible
Device inside and outside differential pressure is constant, provides a kind of holding flexible container inside and outside differential pressure constant device.
The present invention provides a kind of holding flexible container inside and outside differential pressure constant device, feature is：Including the first valve,
Solenoid valve, gas cylinder, PLC control system, flexible container, thermometer, difference gauge, the second valve, absolute pressure meter；
Solenoid valve is connected by the first valve with ambient atmosphere, and gas cylinder is connected with solenoid valve, flexible container and electromagnetism
Valve is connected, and thermometer, the signal output end that PLC control system passes through conducting wire and solenoid valve and difference gauge are equipped on flexible container
It is connected, difference gauge is connected between ambient atmosphere and flexible container, ambient atmosphere is connected by the second valve with flexible container, and second
The outlet of valve is equipped with absolute pressure meter.
A kind of holding flexible container inside and outside differential pressure constant device, temperature are calculated as temperature controller UT55A, temperature control
Sensor in device processed is platinum sensor, and the sensor is set to the center of flexible container.
A kind of holding flexible container inside and outside differential pressure constant device, the first valve, the second valve are ultrahigh vacuum
All-metal angle valve.
A kind of holding flexible container inside and outside differential pressure constant device, PLC control system are received from the defeated of difference gauge
Go out signal, controls solenoid valve.
A kind of holding flexible container inside and outside differential pressure constant device, is connected to flow between gas cylinder and solenoid valve
Meter.
A kind of holding flexible container inside and outside differential pressure constant device, the solenoid valve use Ya De visitor's solenoid valve
4V210-08。
Using present invention holding, flexible container inside and outside differential pressure is constant completes according to the following steps：
One, before keeping flexible container inside and outside differential pressure constant, by closing the first valve and the second valve, in gas cylinder
High pressure gas makes pipeline gassy by solenoid valve, flexible container, and the required flexibility kept is inputted in PLC control system
Differential pressure value inside and outside container obtains solenoid valve entrance location and aperture corresponding to different differential pressures by it.
Two, before keeping flexible container inside and outside differential pressure constant device to start, the first valve and the second valve, gas cylinder are closed
In high pressure gas by solenoid valve, flexible container, make pipeline gassy, difference gauge registration made to reach setting value；When startup,
It is rapid to open the first valve.
When three, keeping flexible container inside and outside differential pressure constant, when the pressure in flexible container declines, difference gauge registration becomes smaller,
Less than the pressure value set in PLC control system, PLC control system exports feedback signal, and control solenoid valve opens connection high pressure
Cylinder port makes high pressure gas enter flexible container, pressure rise, and difference gauge registration becomes larger, and PLC control system is adjusted by feeding back
Section closes solenoid valve pressurized gas inlet；When pressure in flexible container 5 rises, difference gauge registration becomes larger, and is controlled higher than PLC
The pressure value set in system, PLC control system export feedback signal, and control solenoid valve opens connection external environment atmosphere end
Mouthful, so that gas in flexible container 5 is leaked into air, pressure reduction, difference gauge registration becomes smaller, and PLC control system passes through feedback
It adjusts, closes solenoid valve.
The invention has the advantages that can examined as a kind of device that novel holding container inside and outside differential pressure is constant
Considered atmospheric environment, temperature fluctuation and self-defect leakage it is multiple under the influence of, flexible container inside and outside differential pressure can be kept constantly
It is constant, and inside and outside differential pressure value can be set according to actual needs.The device is not only simple in structure, easy to process, it is of low cost and
And strong antijamming capability.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit are common for this field
Technical staff will become clear.Attached drawing only for the purpose of illustrating preferred embodiments, and is not considered as to the present invention
Limitation.Moreover, throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 is a kind of structural schematic diagram of dynamic calibration apparatus under the constant-pressure drop based on flexible container；
Wherein, the first valves of 1-, 2- solenoid valves, 3- gas cylinders, 4-PLC control systems, 5- flexible containers, 6- temperature
Meter, 7- difference gauges, the second valves of 8-, 9- absolute pressure meters.
Specific implementation mode
According to the embodiment of the present invention, a kind of holding flexible container inside and outside differential pressure constant device is proposed, it is characterised in that：
Including the first valve 1, solenoid valve 2, gas cylinder 3, PLC control system 4, flexible container 5, thermometer 6, difference gauge 7, the second valve
Door 8, absolute pressure meter 9；
Solenoid valve 2 is connected by the first valve 1 with ambient atmosphere, and gas cylinder 3 is connected with solenoid valve 2, flexible container 5 with
Solenoid valve 2 is connected, and is equipped with thermometer 6 on flexible container 5, and PLC control system 4 passes through conducting wire and solenoid valve 2 and difference gauge 7
Signal output end is connected, and difference gauge 7 is connected between ambient atmosphere and flexible container 5, and ambient atmosphere passes through the second valve 8 and flexibility
Container 5 is connected, and the outlet of the second valve 8 is equipped with absolute pressure meter 9.
A kind of holding flexible container inside and outside differential pressure constant device, thermometer 6 are temperature controller UT55A, temperature
Sensor in controller is platinum sensor, and the sensor is set to the center of flexible container 8.
A kind of holding flexible container inside and outside differential pressure constant device, the first valve 1, the second valve 8 are that superelevation is true
Empty all-metal angle valve.
A kind of holding flexible container inside and outside differential pressure constant device, PLC control system 4 are received from difference gauge 7
Output signal controls solenoid valve 2.
A kind of holding flexible container inside and outside differential pressure constant device, flow is connected between gas cylinder 3 and solenoid valve 2
Meter.
A kind of holding flexible container inside and outside differential pressure constant device, the solenoid valve 2 use Ya De visitor's solenoid valve
4V210-08。
Using present invention holding, flexible container inside and outside differential pressure is constant completes according to the following steps：
One, before keeping flexible container inside and outside differential pressure constant, by closing the first valve 1 and the second valve 8, gas cylinder 3
In high pressure gas by solenoid valve 2, flexible container 5, make pipeline gassy, in PLC control system 4 input needed for keep
Flexible container 5 inside and outside differential pressure value, 2 entrance location of solenoid valve and the aperture corresponding to different differential pressures are obtained by it.
Two, before keeping flexible container inside and outside differential pressure constant device to start, the first valve 1 and the second valve 8, high pressure gas are closed
High pressure gas in bottle 3 makes pipeline gassy, 7 registration of difference gauge is made to reach setting value by solenoid valve 2, flexible container 5；
It is rapid to open the first valve 1 when startup.
When three, keeping flexible container inside and outside differential pressure constant, when the pressure in flexible container 5 declines, 7 registration of difference gauge becomes
Small, less than the pressure value set in PLC control system 4, PLC control system 4 exports feedback signal, and control solenoid valve 2, which is opened, to be connected
3 port of gas cylinder is connect, high pressure gas is made to enter flexible container 5, pressure rise, 7 registration of difference gauge becomes larger, PLC control system 4
By feedback regulation, 2 pressurized gas inlet of solenoid valve is closed；When pressure in flexible container 5 rises, 7 registration of difference gauge becomes larger,
Higher than the pressure value set in PLC control system 4, PLC control system 4 exports feedback signal, and it is outer that control solenoid valve 2 opens connection
Boundary ambient air port makes gas in flexible container 5 leak into air, and pressure reduction, 7 registration of difference gauge becomes smaller, PLC controls
System 4 closes solenoid valve 2 by feedback regulation.
Claims (6)
1. a kind of holding flexible container inside and outside differential pressure constant device, it is characterised in that：Including the first valve (1), solenoid valve (2),
Gas cylinder (3), PLC control system (4), flexible container (5), thermometer (6), difference gauge (7), the second valve (8), absolute pressure meter
(9)；
Solenoid valve (2) is connected by the first valve (1) with ambient atmosphere, and gas cylinder (3) is connected with solenoid valve (2), and flexibility is held
Device (5) is connected with solenoid valve (2), and thermometer (6) is equipped on flexible container (5), and PLC control system (4) passes through conducting wire and electricity
Magnet valve (2) is connected with the signal output end of difference gauge (7), difference gauge (7) is connected between ambient atmosphere and flexible container (5), outside
Boundary's air is connected by the second valve (8) with flexible container (5), and the outlet of the second valve (8) is equipped with absolute pressure meter (9).
2. a kind of holding flexible container inside and outside differential pressure constant device according to claim 1, it is characterised in that：The temperature
It is temperature controller UT55A to count (6), and the sensor in temperature controller is platinum sensor, and the sensor is set to flexibility
The center of container (5).
3. a kind of holding flexible container inside and outside differential pressure constant device according to claim 1, it is characterised in that：First valve
(1), the second valve (8) is ultrahigh vacuum all-metal angle valve.
4. a kind of holding flexible container inside and outside differential pressure constant device according to claim 1, it is characterised in that：The PLC
Control system (4) receives the output signal from difference gauge (7), control solenoid valve (2).
5. a kind of holding flexible container inside and outside differential pressure constant device according to claim 1, it is characterised in that：The high pressure
It is connected to flowmeter between gas cylinder (3) and solenoid valve (2).
6. a kind of holding flexible container inside and outside differential pressure constant device according to claim 1, it is characterised in that：The electromagnetism
Valve (2) uses Ya De visitor's solenoid valve 4V210-08.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810254333.5A CN108516073A (en) | 2018-03-26 | 2018-03-26 | A kind of holding flexible container inside and outside differential pressure constant device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810254333.5A CN108516073A (en) | 2018-03-26 | 2018-03-26 | A kind of holding flexible container inside and outside differential pressure constant device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108516073A true CN108516073A (en) | 2018-09-11 |
Family
ID=63434425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810254333.5A Pending CN108516073A (en) | 2018-03-26 | 2018-03-26 | A kind of holding flexible container inside and outside differential pressure constant device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108516073A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109552591A (en) * | 2018-12-28 | 2019-04-02 | 湖南航天远望科技有限公司 | A kind of aerostatics fast aeration method and device |
| CN110304233A (en) * | 2019-06-12 | 2019-10-08 | 中国科学院国家空间科学中心 | A kind of Sudden warming in stratosphere pressure increase and decrease device and method |
Citations (5)
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| JP3762934B2 (en) * | 2000-06-16 | 2006-04-05 | 独立行政法人 宇宙航空研究開発機構 | airship |
| CN201071111Y (en) * | 2007-09-14 | 2008-06-11 | 奥飞亚科技(北京)有限公司 | Differential pressure self-regulating control device suitable for airship air chamber |
| CN204433020U (en) * | 2013-05-22 | 2015-07-01 | 青岛飞宇航空科技有限公司 | Novel aerostatics air bag automatic inflatable/air pressure regulation system |
| CN106347622A (en) * | 2016-08-19 | 2017-01-25 | 东莞市中航华讯卫星技术有限公司 | Control method for temperature dependent pressure of airship buoyant aloft parking |
| CN206833264U (en) * | 2017-06-14 | 2018-01-02 | 河南省科琦游乐设备有限公司 | A kind of pressure difference control system of closed aerated film bag |
-
2018
- 2018-03-26 CN CN201810254333.5A patent/CN108516073A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3762934B2 (en) * | 2000-06-16 | 2006-04-05 | 独立行政法人 宇宙航空研究開発機構 | airship |
| CN201071111Y (en) * | 2007-09-14 | 2008-06-11 | 奥飞亚科技(北京)有限公司 | Differential pressure self-regulating control device suitable for airship air chamber |
| CN204433020U (en) * | 2013-05-22 | 2015-07-01 | 青岛飞宇航空科技有限公司 | Novel aerostatics air bag automatic inflatable/air pressure regulation system |
| CN106347622A (en) * | 2016-08-19 | 2017-01-25 | 东莞市中航华讯卫星技术有限公司 | Control method for temperature dependent pressure of airship buoyant aloft parking |
| CN206833264U (en) * | 2017-06-14 | 2018-01-02 | 河南省科琦游乐设备有限公司 | A kind of pressure difference control system of closed aerated film bag |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109552591A (en) * | 2018-12-28 | 2019-04-02 | 湖南航天远望科技有限公司 | A kind of aerostatics fast aeration method and device |
| CN109552591B (en) * | 2018-12-28 | 2021-11-30 | 湖南航天远望科技有限公司 | Rapid inflation method and device for aerostat |
| CN110304233A (en) * | 2019-06-12 | 2019-10-08 | 中国科学院国家空间科学中心 | A kind of Sudden warming in stratosphere pressure increase and decrease device and method |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180911 |
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| WD01 | Invention patent application deemed withdrawn after publication |