CN110304233B - Stratosphere atmospheric pressure increasing and decreasing device and method - Google Patents
Stratosphere atmospheric pressure increasing and decreasing device and method Download PDFInfo
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- CN110304233B CN110304233B CN201910506811.1A CN201910506811A CN110304233B CN 110304233 B CN110304233 B CN 110304233B CN 201910506811 A CN201910506811 A CN 201910506811A CN 110304233 B CN110304233 B CN 110304233B
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
Abstract
The invention discloses an atmosphere pressure increasing and decreasing device for stratosphere, comprising: the device comprises a constant pressure cabin (1), a pressure control component (2), a pressure monitoring component (3), an air storage chamber (4) and a central control unit (5); the constant pressure cabin (1) is used for arranging an atmosphere in-situ photochemical component detection instrument; the pressure control part (2) is used for controlling gas to enter the gas storage chamber (4) and the constant pressure cabin (1) so as to keep the pressure of the constant pressure cabin (1) in the normal pressure range of 800-1100 mbar; the pressure monitoring component (3) is used for monitoring the pressure of the constant pressure cabin (1) and the air storage chamber (4) and sending pressure data to the central control unit (5); the gas storage chamber (4) is used for storing atmospheric gas compressed by the pressure control part (2) from the outside and injecting the gas into the constant pressure cabin (1); the central control unit (5) is used for receiving the pressure data and outputting a control signal to the pressure control component (2) according to the pressure data.
Description
Technical Field
The invention belongs to the technical field of space environment detection, and particularly relates to a pressure increase and decrease device and method for a stratosphere.
Background
The adjacent space is an airspace which is not developed and utilized by a system, and has important strategic significance and application value in the industries of military affairs, scientific exploration, communication, navigation, agriculture, weather, manned tourism, geographical mapping and the like, and related project plans are deployed in the countries of the United states, Russia, European Union, China, Japan, Israel and the like. The detection of the stratospheric environment in the near space is carried out by 10-40 kilometers of balloons or airships, which is a new hot detection field. Photochemical components such as stratospheric ozone, nitrogen oxide and the like have obvious influence on global climate, and the in-situ detection data of the atmosphere environment in the adjacent space is very little, particularly the in-situ detection data of the photochemical components in the stratosphere atmosphere are very rare. At present, no special stratospheric photochemical component in-situ detection instrument exists, and relatively mature commercial atmospheric photochemical component in-situ detection instruments can only be applied to the ground normal-pressure environment and cannot be directly applied to the stratospheric low-pressure environment. Moreover, the existing commercial atmospheric photochemical component in-situ detection instrument can only be applied to the ground normal pressure environment (800-1100mbar), but cannot be directly applied to the low pressure environment (2-265mbar) of the stratosphere with the 10-40 km flight altitude of an airship or a balloon for continuous work.
Disclosure of Invention
The invention aims to overcome the technical defects, and designs a device for increasing the neutral atmospheric pressure of the stratosphere to normal pressure and maintaining dynamic balance in order to ensure that the commercial atmospheric photochemical component in-situ detection instrument can continuously and normally work on the stratosphere aircraft to obtain the component and content information of the stratosphere atmosphere, so that the working range of the commercial atmospheric photochemical component in-situ detection instrument suitable for the ground normal-pressure environment is expanded to the stratosphere.
In order to achieve the above object, the present invention provides a stratospheric pressure increasing and decreasing apparatus, comprising: the device comprises a constant pressure cabin, a pressure control component, a pressure monitoring component, an air storage chamber and a central control unit;
the constant pressure cabin is used for arranging an atmospheric in-situ photochemical component detection instrument;
the pressure control component is used for controlling gas to enter the gas storage chamber and the constant pressure cabin, so that the pressure of the constant pressure cabin is kept in the normal pressure range of 800-1100 mbar;
the pressure monitoring component is used for monitoring the pressure of the constant pressure cabin and the air storage chamber and sending pressure data to the central control unit;
the gas storage chamber is used for storing atmospheric gas compressed by the pressure control component from the outside and injecting the gas into the constant pressure cabin;
and the central control unit is used for receiving the pressure data and outputting a control signal to the pressure control component according to the pressure data.
As an improvement of the above apparatus, the pressure monitoring part includes a first pressure gauge installed on the gas storage chamber for measuring the pressure of the gas storage chamber, and a second pressure gauge installed on the constant pressure chamber for measuring the pressure of the constant pressure chamber.
As an improvement of the above apparatus, the pressure control means includes: a plurality of electromagnetic valves, a vacuum pump and a plurality of gas pipelines; the electromagnetic valve and the vacuum pump are connected with the central control unit through transmission lines; the electromagnetic valve is a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve or a fourth electromagnetic valve; the gas pipelines are a first gas pipeline, a second gas pipeline, a third gas pipeline, a fourth gas pipeline, a fifth gas pipeline, a sixth gas pipeline, a seventh gas pipeline, an eighth gas pipeline and a ninth gas pipeline; the electromagnetic valve is used for controlling the connection and disconnection of the gas flow path; the vacuum pump is used for compressing external low-pressure gas and then injecting the gas into the gas storage chamber; the gas pipeline is used for transmitting gas.
As an improvement of the above device, the third gas pipeline, the first electromagnetic valve, the second gas pipeline, the vacuum pump, the first gas pipeline and the gas storage chamber are connected in sequence; when the first electromagnetic valve is communicated, the vacuum pump is started, external gas is sucked into the vacuum pump along the third gas pipeline, the first electromagnetic valve and the second gas pipeline, and is injected into the gas storage chamber along the first gas pipeline after being compressed;
the gas storage chamber, the fourth gas pipeline, the third electromagnetic valve, the sixth gas pipeline and the constant pressure cabin are sequentially connected; after the pressure of the constant pressure cabin is increased to 1100mbar, the first electromagnetic valve and the vacuum pump are closed, the third electromagnetic valve is communicated with the fourth electromagnetic valve, and the gas in the gas storage chamber enters the constant pressure cabin along the fourth gas pipeline and the third electromagnetic valve;
the constant pressure cabin, the seventh gas pipeline and the fourth electromagnetic valve are sequentially connected with the eighth gas pipeline; the gas flows out of the constant pressure cabin through a seventh gas pipeline, a fourth electromagnetic valve and an eighth gas pipeline, and the pressure of the constant pressure cabin is maintained at 800-1100mbar in the flowing process of the gas;
the gas storage chamber, the fifth gas pipeline, the second electromagnetic valve and the ninth gas pipeline are sequentially connected, when the pressure of the gas storage chamber is reduced to 800mbar, the third electromagnetic valve and the fourth electromagnetic valve are closed, the second electromagnetic valve is opened, and gas of the gas storage chamber flows into an external low-pressure environment through the fifth gas pipeline, the second electromagnetic valve and the ninth gas pipeline.
As a modification of the above apparatus, the gas line is a Teflon hose.
As a modification of the above apparatus, the vacuum pump employs a diaphragm pump.
Based on the device, the invention also provides an atmosphere pressure increasing and decreasing method of the stratosphere, which comprises the following steps:
the central control unit transmits power to a first electromagnetic valve, and the first electromagnetic valve is opened; the vacuum pump is started, the external gas is sucked into the vacuum pump along the third gas pipeline, the first electromagnetic valve and the second gas pipeline, and is injected into the gas storage chamber along the first gas pipeline after being compressed,
when the pressure data sent by the first pressure gauge received by the central control unit exceeds 1100mbar, stopping transmitting power to the first electromagnetic valve, closing the first electromagnetic valve and the vacuum pump, inputting power to the third electromagnetic valve and the fourth electromagnetic valve, opening the third electromagnetic valve and the fourth electromagnetic valve, and enabling the gas in the gas storage chamber to enter a constant pressure chamber along the fourth gas pipeline and the third electromagnetic valve; the gas flows out of the constant pressure cabin through a seventh gas pipeline, a fourth electromagnetic valve and an eighth gas pipeline;
when the pressure data received by the central control unit and sent by the first pressure gauge is lower than 800mbar, the power supply is stopped being transmitted to the third electromagnetic valve and the fourth electromagnetic valve, the power supply is input to the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve are closed, the second electromagnetic valve is opened, and the pressure of the gas storage chamber flows into the external low-pressure environment through the fifth gas pipeline, the second electromagnetic valve and the ninth gas pipeline.
As an improvement of the above method, the method further comprises: and when the pressure data sent by the second pressure gauge and received by the central control unit is lower than 800mbar and the fourth electromagnetic valve is in an open state, stopping power supply to the fourth electromagnetic valve, and closing the fourth electromagnetic valve.
The invention has the advantages that:
1. the device and the method of the invention enable the commercial atmospheric photochemical component in-situ detection instrument to continuously work on an stratospheric balloon or airship, and create a normal pressure environment capable of normally working on the stratosphere for a gas component analysis instrument which only can work on the ground;
2. the invention provides a method and a device for pressurizing neutral atmospheric pressure of an stratosphere to 800-1100mbar and maintaining the pressure constant for a long time so that an atmospheric photochemical component in-situ detection instrument can carry out continuous measurement in a near space of 10-40 kilometers, and the working range of a commercial atmospheric photochemical component in-situ detection instrument suitable for a ground normal-pressure environment is expanded to the stratosphere;
3. the device and the method can obtain long-time and continuous observation data;
4. the device of the invention uses a vacuum pump with low power consumption and weight by designing the air storage chamber, the constant pressure chamber, the gas pipeline and the working process through conductance calculation and introduction, and meets the constraint of the load capacity condition of the existing airship or high-altitude balloon.
Drawings
FIG. 1 is a schematic diagram showing the configuration of an atmosphere pressure-increasing/decreasing device in an stratosphere according to example 1 of the present invention;
FIG. 2 is a block diagram of the pressure control component of the present invention;
fig. 3 is a flowchart of an atmosphere pressure increasing/decreasing method of an stratosphere according to embodiment 2 of the present invention.
The attached drawings are as follows:
1. constant pressure cabin 2, pressure control part 3, pressure monitoring part
4. Air reservoir 5, central control unit 21, first solenoid valve
22. Second solenoid valve 23, third solenoid valve 24, fourth solenoid valve
27. Vacuum pump 31, first pressure gauge 32, second pressure gauge
61. First gas line 62, fourth gas line 63, fifth gas line
64. A second gas line 65, a third gas line 66, a ninth gas line
71. Sixth gas line 72, seventh gas line 73, eighth gas line
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
The device is used for constructing an environment with dynamic pressure balance under normal pressure in the stratosphere, so that the neutral gas in the stratosphere can be ensured to continuously exchange gas with the environment, and the pressure of the environment is ensured to maintain the normal pressure of 800-1100mbar in the period, thereby expanding the working range of the commercial atmospheric photochemical component in-situ detection instrument to the stratosphere.
Example 1
As shown in fig. 1, embodiment 1 of the present invention provides an atmosphere pressure increasing/decreasing device for an stratosphere, including: a constant pressure cabin 1, a pressure control part 2, a pressure monitoring part 3, an air storage chamber 4 and a central control unit 5; as shown in fig. 2, the pressure monitoring part 3 includes a first pressure gauge 31, a second pressure gauge 32 and a transmission line, the transmission line is connected to the central control unit 5, the first pressure gauge 31 is installed on the gas storage chamber 4 to measure the pressure of the gas storage chamber, the second pressure gauge 32 is installed on the constant pressure chamber 1 to measure the pressure of the constant pressure chamber, and the measured pressure data is collected by the central control unit 5 through the transmission line.
The pressure control part 2 includes a first solenoid valve 21, a first solenoid valve 22, a first solenoid valve 23, a first solenoid valve 24, a vacuum pump 27, a first gas line 61, a second gas line 64, a third gas line 65, a fourth gas line 62, a fifth gas line 63, a sixth gas line 71, a seventh gas line 72, an eighth gas line 73, and a ninth gas line 66. The four electromagnetic valves and the vacuum pump 27 are connected with the central control unit 5 through transmission lines, and the central control unit 5 outputs power to the vacuum pump 27 and the four electromagnetic valves of the pressure control part 2 according to the pressure signals of the pressure stabilizing chamber and the air storage chamber provided by the two pressure gauges to control the on and off of the vacuum pump 27 and the four electromagnetic valves.
A vacuum pump 27 is used to increase the reservoir pressure to 1100 mbar. The gas storage chamber 4 is used for storing atmospheric gas compressed by the vacuum pump 27 from the outside. The constant pressure cabin 1 is used for arranging an atmospheric in-situ photochemical component detection instrument. The solenoid valve is used to control the on and off of the gas flow path. The gas pipeline is used for conveying gas.
The vacuum pump 27 is connected to the first gas line 61 and the second gas line 64, the second gas line 64 is connected to the first solenoid valve 21, the solenoid valve 21 is connected to the third gas line 65, and the first gas line 61 is connected to the gas reserving chamber 4. The second electromagnetic valve 22, the third electromagnetic valve 23 and the fourth electromagnetic valve 24 are closed, the first electromagnetic valve 21 is communicated, the vacuum pump 27 is opened, the external gas is sucked into the vacuum pump 27 along the third gas pipeline 65, the first electromagnetic valve 21 and the second gas pipeline 64, and is injected into the gas storage chamber 4 along the first gas pipeline 61 after being compressed, so that the pressure of the gas storage chamber 4 is increased to 1100 mbar.
Besides the connection with the vacuum pump, the gas storage chamber 4 is also connected with two other gas pipelines: a fourth gas line 62 and a fifth gas line 63. The fourth gas pipeline 62 is connected to the third electromagnetic valve 23, the third electromagnetic valve 23 is connected to the sixth gas pipeline 71, the sixth gas pipeline 71 is connected to the constant pressure cabin 1, the constant pressure cabin 1 is connected to the seventh gas pipeline 72, the seventh gas pipeline 72 is connected to the fourth electromagnetic valve 24, and the fourth electromagnetic valve 24 is connected to the eighth gas pipeline 73. After the pressure of the gas storage chamber 4 is increased to 1100mbar, the first electromagnetic valve 21 is closed, the vacuum pump 27 is closed, the third electromagnetic valve 23 and the fourth electromagnetic valve 24 are communicated, the gas in the gas storage chamber 4 enters the constant pressure cabin 1 along the fourth gas pipeline 62, the third electromagnetic valve 23 and the sixth gas pipeline 71, then flows out of the constant pressure cabin 1 through the seventh gas pipeline 72, the fourth electromagnetic valve 24 and the eighth gas pipeline 73, and the pressure of the constant pressure cabin 1 is maintained at 1100mbar in the flowing process. When the reservoir 4 pressure drops to 800mbar, the third solenoid valve 23 and the fourth solenoid valve 24 are closed.
The fifth gas line 63 is connected to the second solenoid valve 22, and the second solenoid valve 22 is connected to the ninth gas line 66. After the pressure of the gas storage chamber 4 is reduced to 800mbar, the third electromagnetic valve 23 and the fourth electromagnetic valve 24 are closed, the second electromagnetic valve 22 is opened, the pressure of the gas storage chamber 4 flows into the external low-pressure environment through the fifth gas pipeline 63, the second electromagnetic valve 22 and the ninth gas pipeline 66, and a detection process is finished.
Example 2
As shown in fig. 3, an embodiment 2 of the present invention proposes a method for increasing or decreasing an atmospheric pressure of an stratosphere, based on the above-mentioned device for increasing or decreasing an atmospheric pressure of a stratosphere, the method including:
s1, the central control unit 5 transmits power to the pressure control part 2;
s2, the pressure monitoring part 3 measures the pressure of the constant pressure cabin 1 and the air storage chamber 4 and sends signals to the central control unit 5;
s3, the central control unit 5 outputs power to the vacuum pump 27 or the electromagnetic valve of the pressure control part 2 according to the pressure to control the flow of the gas, so that the pressure of the constant pressure cabin 1 is maintained at 800-1100 mbar.
The vacuum pump 27 compresses the external gas with 2-60mbar and injects the compressed gas into the gas storage chamber 4, so that the pressure of the gas storage chamber 4 reaches the normal pressure (800 and 1100 mbar). The electromagnetic valve between the air storage chamber 4 and the constant pressure cabin 1 is opened, and the gas in the air storage chamber 4 is injected into the constant pressure cabin 1 through the electromagnetic valve and the gas pipeline; an electromagnetic valve connected with the outside of the constant pressure cabin is opened, and the gas in the constant pressure cabin 1 flows out to the outside through the electromagnetic valve and a gas pipeline; the gas injected into the constant pressure cabin 1 from the gas storage chamber 4 and the gas flowing out of the constant pressure cabin 1 reach dynamic equilibrium, and the atmospheric pressure environment of the constant pressure cabin 1 is maintained.
The vacuum pump 27 sucks and compresses outside air into the air storage chamber 4, increases the air pressure to normal pressure, and flows into and out of the constant pressure cabin 1 through an air pipeline, so that the pressure of the constant pressure cabin 1 is maintained in a normal pressure state for a long time, the continuous normal work of the atmospheric photochemical component in-situ measuring instrument applicable to the ground normal pressure environment in a near space of 10-40 kilometers is realized, and the requirements of small size and low weight power consumption of airship and balloon load capacity are met.
The invention adopts the stratosphere atmospheric pressure increasing and decreasing technology, realizes the construction of a continuous working environment with the dynamic balance of neutral gas in the stratosphere atmosphere under normal pressure by utilizing a vacuum pump, an air storage chamber, a constant pressure cabin, an electromagnetic valve and a gas pipeline through a flow guide design, and is suitable for airship and high-altitude balloons. If the loading capacity of the airship or the high-altitude balloon is not considered, possible alternatives include that only a vacuum pump with higher pumping speed and a constant pressure cabin and a gas pipeline are adopted without using an air storage chamber through a flow guide design, although the volume is slightly reduced, the weight and the power consumption of the vacuum pump are greatly increased in the scheme, the weight and the power consumption of the vacuum pump exceed the resource supply capacity of the airship or the high-altitude balloon, and the requirements of the existing airship or the high-altitude balloon on load miniaturization and low power consumption are not met.
The invention provides a method for dynamically maintaining a normal-pressure working environment used in an stratosphere, which enables an atmospheric photochemical component in-situ measuring instrument suitable for the ground to continuously and normally work in the stratosphere of 10-40 kilometers and carry out in-situ measurement on ambient atmosphere. The invention maintains the working pressure of the atmospheric photochemical component in-situ measuring instrument in the normal pressure range by a method of increasing and decreasing the atmospheric pressure of an stratosphere, the atmospheric photochemical component in-situ measuring instrument is arranged in a constant pressure cabin, a vacuum pump is utilized to sample and compress stratosphere gas and increase the gas pressure of a gas storage chamber to 1100mbar, then the compressed gas flows into the constant pressure cabin, the gas of the constant pressure cabin flows into the external environment, the pressure of the constant pressure cabin is maintained at 800-1100mba during the period until the pressure of the gas storage chamber is reduced to 800mbar, and the next cycle is started. The invention constructs a working environment with normal pressure on the ground in the stratosphere, meets the requirements of small size and low weight power consumption of airship and balloon load capacity, and is suitable for carrying out in-situ measurement on atmospheric components of the stratosphere in the future.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. An stratospheric barometric pressure increase or decrease device, comprising: the device comprises a constant pressure cabin (1), a pressure control component (2), a pressure monitoring component (3), an air storage chamber (4) and a central control unit (5);
the constant pressure cabin (1) is used for arranging an atmosphere in-situ photochemical component detection instrument;
the pressure control part (2) is used for controlling gas to enter the gas storage chamber (4) and the constant pressure cabin (1) and keeping the pressure of the constant pressure cabin (1) in the normal pressure range of 800-1100 mbar;
the pressure monitoring component (3) is used for monitoring the pressure of the constant pressure cabin (1) and the air storage chamber (4) and sending pressure data to the central control unit (5);
the gas storage chamber (4) is used for storing atmospheric gas compressed by the pressure control part (2) from the outside and injecting the gas into the constant pressure cabin (1);
the central control unit (5) is used for receiving the pressure data and outputting a control signal to the pressure control component (2) according to the pressure data;
the pressure control part (2) includes: a plurality of electromagnetic valves, a vacuum pump (27) and a plurality of gas pipelines; the electromagnetic valve and the vacuum pump (27) are connected with the central control unit (5) through transmission lines; the electromagnetic valve is a first electromagnetic valve (21), a second electromagnetic valve (22), a third electromagnetic valve (23) or a fourth electromagnetic valve (24); the gas pipelines are a first gas pipeline (61), a second gas pipeline (64), a third gas pipeline (65), a fourth gas pipeline (62), a fifth gas pipeline (63), a sixth gas pipeline (71), a seventh gas pipeline (72), an eighth gas pipeline (73) and a ninth gas pipeline (66); the electromagnetic valve is used for controlling the connection and disconnection of the gas flow path; the vacuum pump (27) is used for compressing external low-pressure gas and then injecting the gas into the gas storage chamber (4); the gas pipeline is used for transmitting gas;
the third gas pipeline (65), the first electromagnetic valve (21), the second gas pipeline (64), the vacuum pump (27), the first gas pipeline (61) and the gas storage chamber (4) are sequentially connected; when the first electromagnetic valve (21) is communicated, the vacuum pump (27) is started, the external air is sucked into the vacuum pump (27) along the third air pipeline (65), the first electromagnetic valve (21) and the second air pipeline (64), and is injected into the air storage chamber (4) along the first air pipeline (61) after being compressed;
the gas storage chamber (4), the fourth gas pipeline (62), the third electromagnetic valve (23), the sixth gas pipeline (71) and the constant pressure cabin (1) are connected in sequence; after the pressure of the constant pressure cabin (1) is increased to 1100mbar, the first electromagnetic valve (21) and the vacuum pump (27) are closed, the third electromagnetic valve (23) and the fourth electromagnetic valve (24) are communicated, and the gas in the gas storage chamber (4) enters the constant pressure cabin (1) along the fourth gas pipeline (62) and the third electromagnetic valve (23);
the constant pressure cabin (1), the seventh gas pipeline (72), the fourth electromagnetic valve (24) and the eighth gas pipeline (73) are connected in sequence; the gas flows out of the constant pressure cabin (1) through a seventh gas pipeline (72), a fourth electromagnetic valve (24) and an eighth gas pipeline (73), and the pressure of the constant pressure cabin (1) is maintained at 800-1100mbar in the flowing process;
the gas storage chamber (4), the fifth gas pipeline (63), the second electromagnetic valve (22) and the ninth gas pipeline (66) are sequentially connected, when the pressure of the gas storage chamber (4) is reduced to 800mbar, the third electromagnetic valve (23) and the fourth electromagnetic valve (24) are closed, the second electromagnetic valve (22) is opened, and the gas of the gas storage chamber (4) flows into the external low-pressure environment through the fifth gas pipeline (63), the second electromagnetic valve (22) and the ninth gas pipeline (66).
2. The stratospheric atmospheric pressure increasing and decreasing device according to claim 1, wherein the pressure monitoring means (3) comprises a first pressure gauge (31) and a second pressure gauge (32), the first pressure gauge (31) being installed on the air storage chamber (4) for measuring the pressure of the air storage chamber (4), the second pressure gauge (32) being installed on the constant pressure chamber (1) for measuring the pressure of the constant pressure chamber (1).
3. The stratospheric barometric pressure increase or decrease device of claim 1, wherein the gas line is a teflon hose.
4. The stratospheric atmospheric pressure increasing and decreasing device according to claim 1, wherein the vacuum pump (27) employs a diaphragm pump.
5. An stratospheric barometric pressure increase and decrease method, which is implemented based on the apparatus of any one of claims 1 to 4, and which comprises:
the central control unit (5) delivering electrical power to a first solenoid valve (21), the first solenoid valve (21) being open; the vacuum pump (27) is started, the outside air is sucked into the vacuum pump (27) along the third gas pipeline (65), the first electromagnetic valve (21) and the second gas pipeline (64), and is injected into the air storage chamber (4) along the first gas pipeline (61) after being compressed,
when the pressure data sent by the first pressure gauge (31) and received by the central control unit (5) exceeds 1100mbar, stopping transmitting power to the first electromagnetic valve (21), closing the first electromagnetic valve (21) and the vacuum pump (27), inputting power to the third electromagnetic valve (23) and the fourth electromagnetic valve (24), opening the third electromagnetic valve (23) and the fourth electromagnetic valve (24), and enabling the gas in the gas storage chamber (4) to enter the constant pressure chamber (1) along the fourth gas pipeline (62) and the third electromagnetic valve (23); the gas flows out of the constant pressure cabin (1) through a seventh gas pipeline (72), a fourth electromagnetic valve (24) and an eighth gas pipeline (73);
when the pressure data received by the central control unit (5) and sent by the first pressure gauge (31) is lower than 800mbar, the power supply is stopped being transmitted to the third electromagnetic valve (23) and the fourth electromagnetic valve (24) and the power supply is input to the second electromagnetic valve (22), the third electromagnetic valve (23) and the fourth electromagnetic valve (24) are closed, the second electromagnetic valve (22) is opened, and the pressure of the air storage chamber (4) flows into the external low-pressure environment through the fifth gas pipeline (63), the second electromagnetic valve (22) and the ninth gas pipeline (66);
the method further comprises the following steps: when the pressure data sent by the second pressure gauge (32) and received by the central control unit (5) is lower than 800mbar and the fourth solenoid valve (24) is in an open state, the power supply to the fourth solenoid valve (24) is stopped, and the fourth solenoid valve (24) is closed.
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| CN104816392B (en) * | 2015-04-14 | 2018-10-02 | 张金木 | A kind of epoxide resin vacuum degassing pressure control system |
| CN106628098B (en) * | 2016-12-30 | 2019-06-11 | 北京天恒长鹰科技股份有限公司 | A kind of stratospheric airship |
| CN207280709U (en) * | 2017-06-30 | 2018-04-27 | 天津森罗科技股份有限公司 | One kind diving uses camera protective cover pressure test device |
| CN108267801A (en) * | 2018-01-09 | 2018-07-10 | 广州市健源电子有限公司 | A kind of shared wind speed and direction pressure monitoring system |
| CN108516073A (en) * | 2018-03-26 | 2018-09-11 | 合肥工业大学 | A kind of holding flexible container inside and outside differential pressure constant device |
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