CN111895276B - Gas supply pipeline internal air pressure monitoring device - Google Patents

Gas supply pipeline internal air pressure monitoring device Download PDF

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Publication number
CN111895276B
CN111895276B CN202010677975.3A CN202010677975A CN111895276B CN 111895276 B CN111895276 B CN 111895276B CN 202010677975 A CN202010677975 A CN 202010677975A CN 111895276 B CN111895276 B CN 111895276B
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China
Prior art keywords
casing
gas
gas supply
pressure
supply pipeline
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CN111895276A (en
Inventor
牛正峰
梁智翔
牛笛
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Guangdong Zhujiang Gas Group Co ltd
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Guangdong Zhujiang Gas Group Co ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00Protection or supervision of installations
    • F17D5/02Preventing, monitoring, or locating loss
    • F17D5/06Preventing, monitoring, or locating loss using electric or acoustic means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/18Absorbing units; Liquid distributors therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00Arrangements for supervising or controlling working operations
    • F17D3/01Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The invention discloses an internal air pressure monitoring device of a gas supply pipeline, which comprises a casing, an audible and visual alarm, a gas supply pipeline, a methane sensor, an installation inner shell, an electric plate and an installation plug, wherein the casing is installed outside the gas supply pipeline; according to the invention, the installation inner shell is installed in the device, the adsorption activated carbon and the organic liquid tank are installed in the installation inner shell, when the gas in the pipeline leaks into the monitoring device, one part of the leaked gas can be adsorbed by the adsorption activated carbon, and one part of the leaked gas can be dissolved in the organic solution in the organic liquid tank, so that the leaked gas is effectively treated, the leaked gas is prevented from remaining in the device or leaking outside, and the use safety of the device and the gas pipeline is further ensured.

Description

Gas supply pipeline internal air pressure monitoring device
Technical Field
The invention belongs to the field of pipeline air pressure monitoring, and particularly relates to an internal air pressure monitoring device for a gas supply pipeline.
Background
The fuel gas is a general term for gas fuel, and can be combusted to release heat for residents and industrial enterprises. The gas is a necessary part in production and life of people, is supplied to a supply place through a gas pipe, and when the gas is supplied, in order to know the internal air pressure in the gas supply pipe, an internal air pressure monitoring device of a gas supply pipeline is needed.
The existing patent (publication number: cn201911305967.x) discloses a leakage monitoring device for a gas pipeline, which comprises a supporting rod and a sliding detection device; the support rod comprises a holding part and a telescopic rod fixedly connected with the holding part, and a detergent box is arranged on the holding part; slip detection device includes relative setting at the first arc and the second arc on telescopic link top, finds to have following problem among the prior art at the in-process of realizing this scheme, does not obtain good solution: 1. the device is not provided with any leakage-proof sealing structure on the outer part, when the device is installed and used, a good sealing effect cannot be generated between the device and a monitoring pipeline, and certain gas leakage risk can be caused; 2. the device is not provided with any warning alarm structure, and when the air pressure in the gas pipeline is monitored, some leaked gas cannot be monitored and alarmed, so that a worker cannot know in advance and cannot effectively take measures; 3. the device is not internally provided with a leaked gas treatment structure, and some leaked gas cannot be treated and still has potential safety hazards.
Disclosure of Invention
The invention aims to provide an internal air pressure monitoring device of a gas supply pipeline, which aims to solve the problems that no leakage-proof sealing structure is arranged on the outer part of the device provided by the background technology, the risk of gas leakage exists, no warning alarm structure is arranged on the device, the gas leakage cannot be predicted in advance by workers, effective treatment measures cannot be carried out, a leaked gas treatment structure is not arranged in the device, some leaked gas cannot be treated, and the leaked gas still has potential safety hazards.
In order to achieve the purpose, the invention provides the following technical scheme:
an internal air pressure monitoring device of a gas supply pipeline comprises a casing, an audible and visual alarm, a gas supply pipeline, a methane sensor, an installation inner shell, an electric plate and an installation plug, the casing is arranged outside the air supply pipeline, the top of the casing is fixedly provided with an audible and visual alarm, an installation plug is arranged in a pressure monitoring hole arranged on the gas supply pipeline through internal threads, a methane sensor is fixedly arranged on the inner wall of the top surface of the shell, the top of the casing is fixedly provided with a mounting sleeve, a pressure detection rod is arranged in the mounting sleeve in a sliding way, the top end of the pressure detection rod is fixedly provided with a pressure gauge, the side wall of the pressure detection rod is fixedly provided with a side connecting spring, the installation inner shell is slidably arranged on a guide rail fixedly arranged in the shell, an organic liquid tank is fixedly arranged in the mounting inner shell, and adsorption activated carbon is arranged on a bracket arranged on the inner wall of the mounting inner shell above the organic liquid tank;
the charging device comprises a casing, a charging battery box, a charging interface, an electric plate, a data receiving chip and a processing single chip microcomputer, wherein the charging battery box is fixedly installed on the outer wall of the rear side of the casing, the charging interface is arranged outside the charging battery box, the electric plate is fixedly installed in a cavity of the casing of the rear side, the data receiving chip and the processing single chip microcomputer are fixedly installed on the electric plate, a bottom hole is formed in the bottom of the casing, a rotating shaft is rotatably installed in the bottom hole, and a supporting bottom plate is fixedly installed at one end of the rotating shaft.
As a further scheme of the invention: and a digital display screen is embedded outside the shell.
As a further scheme of the invention: and the combination position of the shell and the air supply pipeline is fixedly provided with a leakage-proof sealing outer sleeve on the inner wall of the shell.
As a further scheme of the invention: the top fixed mounting of installation stopper has the swivel, and the outside fixed mounting in upper end of installation stopper has sealed outer pad.
As a further scheme of the invention: two methane sensors are symmetrically arranged on the longitudinal central axis of the shell, and the detection ends of the methane sensors are positioned at the bottom of the methane sensors.
As a further scheme of the invention: two side connecting springs are symmetrically arranged around the longitudinal central axis of the pressure detection rod, and the top ends of the side connecting springs are fixedly connected with the inner wall of the top surface of the shell.
As a further scheme of the invention: the bottom end of the pressure detection rod penetrates through a pressure monitoring hole formed in the gas supply pipeline and is inserted into the inner side of the pressure detection rod.
As a further scheme of the invention: and liquid adding pipes are fixedly arranged on the outer walls of the two sides of the shell, and one end of each liquid adding pipe is right opposite to a liquid guide pipe arranged on the side wall of the organic liquid tank.
As a further scheme of the invention: the bottom of the supporting bottom plate is fixedly provided with a convex block, and the supporting bottom plate is contacted with the bottom surface of the mounting inner shell and is extruded.
As a further scheme of the invention: the methane sensor's output and gas monitoring module's input electric connection, gas monitoring module's output and data transmission module's input electric connection, data transmission module's output respectively with data receiving chip and data processing module's input electric connection, data processing module's output and the input electric connection who handles the singlechip, the output of handling the singlechip and audible-visual annunciator's input electric connection.
Compared with the prior art, the methane sensor is arranged in the device, the audible and visual alarm is arranged outside the device, when the device is used, the pressure gauge can monitor the gas pressure in the pipeline, the methane sensor can also effectively monitor the gas leakage condition of the pipeline, if the monitoring has the methane concentration, the processing singlechip can process data, so that the audible and visual alarm is controlled to perform audible and visual alarm, peripheral workers are warned, the device has effective gas pipeline gas leakage monitoring and warning effects, the workers can effectively know the sealing performance of the pipeline and can perform quick and effective gas leakage processing, and the safety is effectively improved;
according to the invention, the anti-leakage sealing outer sleeve is arranged outside the device, after the device is arranged on the gas supply pipeline, the sealing property between the device and the gas supply pipeline is effectively improved, the condition that gas is transmitted to the external environment through the device when the gas in the pipeline leaks is avoided, and the sealing outer pad is arranged outside the mounting plug of the gas pipeline, so that the sealing property after the mounting plug is arranged can be effectively ensured, the gas leakage condition of the gas supply pipeline is avoided, the sealing property is improved as a whole, and the gas leakage risk is reduced;
according to the gas pipeline pressure monitoring device, the pressure gauge and the pressure detection rod which can move up and down are arranged on the device, the connecting spring is arranged between the pressure detection rod and the interior of the device, and the positions of the pressure gauge and the pressure detection rod can be changed by pulling the pressure gauge and the pressure detection rod, so that the gas pipeline pressure monitoring device can move on a gas pipeline, different pressure monitoring positions in the pipeline can be effectively changed, the function is strong, and the use diversity of the gas pipeline pressure monitoring device is improved;
according to the invention, the installation inner shell is installed in the device, the adsorption activated carbon and the organic liquid tank are installed in the installation inner shell, when the gas in the pipeline leaks into the monitoring device, one part of the leaked gas can be adsorbed by the adsorption activated carbon, and one part of the leaked gas can be dissolved in the organic solution in the organic liquid tank, so that the leaked gas is effectively treated, the leaked gas is prevented from remaining in the device or leaking outside, and the use safety of the device and the gas pipeline is further ensured.
Drawings
Fig. 1 is a schematic perspective view of a gas supply pipeline internal pressure monitoring device.
Fig. 2 is a schematic view of an internal structure of a gas supply pipeline internal pressure monitoring device.
Fig. 3 is a rear partial sectional view of a gas supply line internal pressure monitoring device.
Fig. 4 is an enlarged schematic structural diagram of a gas pressure monitoring device in a gas supply pipeline.
Fig. 5 is a schematic view of the bottom structure of the housing of the gas pressure monitoring device inside the gas supply pipeline.
Fig. 6 is a schematic diagram of a working principle module structure of an internal gas pressure monitoring device of a gas supply pipeline.
In the figure: 1. a housing; 2. an audible and visual alarm; 3. installing a sleeve; 4. a pressure gauge; 5. a leak-proof sealing jacket; 6. a digital display screen; 7. a liquid feeding pipe; 8. a gas supply duct; 9. a methane sensor; 10. a pressure detection lever; 11. a side connection spring; 12. installing an inner shell; 13. adsorbing active carbon; 14. an organic liquid bath; 15. a bracket; 16. an electric board; 17. a data receiving chip; 18. processing the single chip microcomputer; 19. a charging interface; 20. a charging battery box; 21. rotating the ring; 22. sealing the outer cushion; 23. installing a plug; 24. a bottom hole; 25. a rotating shaft; 26. a bump; 27. supporting the bottom sheet; 28. a guide rail; 29. a catheter.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1-5, a gas supply pipeline internal pressure monitoring device comprises a casing 1, an audible and visual alarm 2, a gas supply pipeline 8, a methane sensor 9, an installation inner shell 12, an electric plate 16 and an installation plug 23, wherein the casing 1 is installed outside the gas supply pipeline 8, the audible and visual alarm 2 is fixedly installed at the top of the casing 1, the installation plug 23 is installed in a pressure monitoring hole formed in the gas supply pipeline 8, the methane sensor 9 is fixedly installed on the inner wall of the top surface of the casing 1, an installation sleeve 3 is fixedly installed at the top of the casing 1, a pressure detection rod 10 is slidably installed in the installation sleeve 3, a pressure gauge 4 is fixedly installed at the top end of the pressure detection rod 10, a side connecting spring 11 is fixedly installed on the side wall of the pressure detection rod 10, the pressure gauge 4 is pulled up, and the pressure gauge 4 drives the pressure detection rod 10 to rise, when the pressure detection rod 10 is pulled up, the side connecting spring 11 is compressed, a proper position of the internal pressure of the pipeline to be monitored is selected, the mounting plug 23 can be effectively rotated through the rotating ring 21, the mounting plug 23 is screwed down, so that the opening of a pressure monitoring hole of the gas supply pipeline 8 is completed, the pressure detection rod 10 is loosened, the side connecting spring 11 can automatically reset the pressure detection rod 10, the mounting inner shell 12 is slidably mounted on a guide rail 28 fixedly mounted in the interior of the machine shell 1, the interior of the mounting inner shell 12 is fixedly provided with the organic liquid tank 14, the bracket 15 arranged on the inner wall of the mounting inner shell 12 above the organic liquid tank 14 is provided with the adsorption activated carbon 13, part of leaked gas can be adsorbed by the adsorption activated carbon 13, and part of leaked gas can be dissolved in the organic solution in the organic liquid tank 14, so that the leaked gas is prevented from leaking outside;
the outer wall of the rear side of the casing 1 is fixedly provided with a charging battery box 20, a charging interface 19 is arranged outside the charging battery box 20, an electroplate 16 is fixedly arranged in a casing cavity of the rear side of the casing 1, a data receiving chip 17 and a processing single chip microcomputer 18 are fixedly arranged on the electroplate 16, a bottom hole 24 is arranged at the bottom of the casing 1, a rotating shaft 25 is rotatably arranged in the bottom hole 24, one end of the rotating shaft 25 is fixedly provided with a supporting bottom sheet 27, when the adsorption active carbon 13 or the organic solvent needs to be replaced, the supporting bottom sheet 27 is rotated through a convex block 26, the supporting bottom sheet 27 is enabled not to be in contact with the installation inner shell 12, the installation inner shell 12 can automatically slide down due to gravity, and the adsorption active carbon 13 or the organic solvent inside can be replaced.
The technical characteristics are as follows: the pressure gauge 4 is pulled up, the pressure gauge 4 drives the pressure detection rod 10 to rise, when the pressure detection rod 10 is pulled up, the side connecting spring 11 is compressed, a proper position of the internal pressure of the pipeline to be monitored is selected, the installation plug 23 can be effectively rotated through the rotating ring 21, the installation plug 23 is screwed down, so that the opening of the pressure monitoring hole of the air supply pipeline 8 is completed, the pressure detection rod 10 is loosened, the side connecting spring 11 can automatically reset the pressure detection rod 10, the casing 1 is moved at the moment, when the pressure detection rod 10 is aligned with the opened pressure monitoring hole, the pressure detection rod 10 can be automatically clamped into the pressure monitoring hole, the leakage-proof sealing sleeve 5 effectively improves the sealing performance between the casing 1 and the air supply pipeline 8 after installation, the occurrence of the air leakage of the pipeline is avoided, the rest installation plugs 23 are screwed up, the sealing outer cushion 22 outside the installation plug 23 can effectively ensure the sealing performance after the installation plug 23 is installed, gas leakage of the gas supply pipeline 8 is avoided, when the methane gas generating device is used, fuel gas is introduced into the gas supply pipeline 8, the methane sensor 9 can monitor the methane concentration in the device, if the monitoring result shows that the methane concentration exists, the information is transmitted to the data receiving chip 17, the processing singlechip 18 can process the data, thereby controlling the audible and visual alarm 2 to carry out audible and visual alarm, warning surrounding workers that the pipeline has air leakage, and on the contrary, then the alarm is not given, part of the leaked fuel gas can be absorbed by the adsorption active carbon 13, and part of the leaked fuel gas can be dissolved in the organic solution in the organic liquid tank 14, thereby avoiding the leakage of the leaked fuel gas, ensuring the use safety, when the adsorption active carbon 13 or the organic solvent needs to be replaced, the supporting bottom plate 27 is rotated by the convex block 26, so that the supporting bottom plate 27 is not contacted with the installation inner shell 12, the installation inner shell 12 can automatically slide down due to gravity, and the adsorption active carbon 13 or the organic solvent in the installation inner shell can be replaced.
Referring to fig. 1-4, a digital display screen 6 is mounted on the exterior of the casing 1 in an embedded manner, and some monitoring information can be effectively displayed on the digital display screen 6 by mounting the digital display screen 6, so that people can know the monitoring information, a leakage-proof sealing jacket 5 is fixedly mounted on the inner wall of the casing 1 at the combination position of the casing 1 and the air supply duct 8, and the leakage-proof sealing jacket 5 is fixedly mounted on the inner wall of the casing 1 at the combination position of the casing 1 and the air supply duct 8, so as to effectively improve the sealing performance between the casing 1 and the air supply duct 8 after being mounted and avoid the occurrence of air leakage in the duct, a swivel 21 is fixedly mounted on the top of the mounting plug 23, a sealing outer pad 22 is fixedly mounted on the exterior of the upper end of the mounting plug 23, and the mounting plug 23 can be effectively rotated by the swivel 21 by mounting the swivel 21, so as to complete the opening and closing of the pressure monitoring hole of the air supply duct 8, by installing the sealing outer gasket 22, the sealing performance after the installation of the installation plug 23 can be effectively ensured, and the air leakage of the air supply pipeline 8 is avoided.
Referring to fig. 1-2, the two methane sensors 9 are symmetrically installed about the longitudinal central axis of the casing 1, the detection ends of the methane sensors 9 are located at the bottom of the methane sensors 9, the two methane sensors 9 are installed, and the detection end of the methane sensor 9 is located at the bottom of the methane sensor 9, so that the monitoring accuracy and precision of the methane sensor 9 during use are greatly improved, errors are avoided, the two side connecting springs 11 are symmetrically installed about the longitudinal central axis of the pressure detection rod 10, the top ends of the side connecting springs 11 are fixedly connected with the inner wall of the top surface of the casing 1 by installing the two side connecting springs 11, when the pressure detection rod 10 is pulled up, the side connecting springs 11 are compressed, and when the pressure detection rod 10 is released, the side connecting springs 11 can automatically reset the pressure detection rod 10, the bottom of pressure measurement pole 10 passes the inboard that pressure monitoring hole that sets up was inserted and is inlayed pressure measurement pole 10 on the gas supply line 8 passes through the bottom that makes pressure measurement pole 10 the inboard that pressure monitoring hole that sets up was inserted and is inlayed pressure measurement pole 10 on the gas supply line 8 makes the manometer 4 on pressure measurement pole 10 top can accurately monitor gas pressure in the gas supply line 8.
Referring to fig. 1-5, the outer walls of the two sides of the housing 1 are both fixedly installed with the liquid feeding tube 7, one end of the liquid feeding tube 7 is opposite to the liquid guiding tube 29 installed on the side wall of the organic liquid tank 14, the liquid feeding tube 7 is installed, and one end of the liquid feeding tube 7 is opposite to the liquid guiding tube 29 installed on the side wall of the organic liquid tank 14, so that the organic solvent can be effectively added into the liquid guiding tube 29 through the liquid feeding tube 7, the organic solvent can enter the organic liquid tank 14 through the liquid guiding tube 29 for storage, the bottom of the supporting bottom sheet 27 is fixedly installed with the bump 26, the supporting bottom sheet 27 is in contact with and pressed against the bottom surface of the installed inner housing 12, and the supporting bottom sheet 27 can be rotated through the bump 26 by making the supporting bottom sheet 27 in contact with and pressed against the bottom surface of the installed inner housing 12, so that the supporting bottom sheet 27 has a good positioning effect on the installed inner housing 12.
Referring to fig. 6, the output end of the methane sensor 9 is electrically connected to the input end of the gas monitoring module, the output end of the gas monitoring module is electrically connected to the input end of the data transmission module, the output end of the data transmission module is electrically connected to the data receiving chip 17 and the input end of the data processing module, the output end of the data processing module is electrically connected to the input end of the processing single chip 18, the output end of the processing single chip 18 is electrically connected to the input end of the audible and visual alarm 2, during the use of the monitoring device, the methane sensor 9 can monitor the methane concentration in the device, if the monitoring has the methane concentration, the information is transmitted to the data receiving chip 17, the processing single chip 18 can process the data, thereby controlling the audible and visual alarm 2 to perform audible and visual alarm and warning peripheral workers, otherwise, no alarm is given.
It should be noted that: the leakproof sealing outer sleeve 5 and the sealing outer pad 22 are made of sealing resin materials, and the organic solution in the organic liquid tank 14 is carbon tetrachloride solution.
The working principle of the invention is as follows: the pressure gauge 4 is pulled up, the pressure gauge 4 drives the pressure detection rod 10 to rise, when the pressure detection rod 10 is pulled up, the side connecting spring 11 is compressed, a proper position of the internal pressure of the pipeline to be monitored is selected, the installation plug 23 can be effectively rotated through the rotating ring 21, the installation plug 23 is screwed down, so that the opening of the pressure monitoring hole of the air supply pipeline 8 is completed, the pressure detection rod 10 is loosened, the side connecting spring 11 can automatically reset the pressure detection rod 10, the casing 1 is moved at the moment, when the pressure detection rod 10 is aligned with the opened pressure monitoring hole, the pressure detection rod 10 can be automatically clamped into the pressure monitoring hole, the leakage-proof sealing sleeve 5 effectively improves the sealing performance between the casing 1 and the air supply pipeline 8 after installation, the occurrence of the air leakage of the pipeline is avoided, the rest installation plugs 23 are screwed up, the sealing outer cushion 22 outside the installation plug 23 can effectively ensure the sealing performance after the installation plug 23 is installed, gas leakage of the gas supply pipeline 8 is avoided, when the methane gas generating device is used, fuel gas is introduced into the gas supply pipeline 8, the methane sensor 9 can monitor the methane concentration in the device, if the monitoring result shows that the methane concentration exists, the information is transmitted to the data receiving chip 17, the processing singlechip 18 can process the data, thereby controlling the audible and visual alarm 2 to carry out audible and visual alarm, warning surrounding workers that the pipeline has air leakage, and on the contrary, then the alarm is not given, part of the leaked fuel gas can be absorbed by the adsorption active carbon 13, and part of the leaked fuel gas can be dissolved in the organic solution in the organic liquid tank 14, thereby avoiding the leakage of the leaked fuel gas, ensuring the use safety, when the adsorption active carbon 13 or the organic solvent needs to be replaced, the supporting bottom plate 27 is rotated by the convex block 26, so that the supporting bottom plate 27 is not contacted with the installation inner shell 12, the installation inner shell 12 can automatically slide down due to gravity, and the adsorption active carbon 13 or the organic solvent in the installation inner shell can be replaced.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims (10)

1. The utility model provides an inside atmospheric pressure monitoring devices of gas supply line, includes casing, audible-visual annunciator, gas supply line, methane sensor, installation inner shell, electroplax and installation stopper, its characterized in that: the methane tank is characterized in that the casing is installed outside the gas supply pipeline, an audible and visual alarm is fixedly installed at the top of the casing, an installation plug is installed in a pressure monitoring hole formed in the gas supply pipeline through internal threads, a methane sensor is fixedly installed on the inner wall of the top surface of the casing, an installation sleeve is fixedly installed at the top of the casing, a pressure detection rod is slidably installed in the installation sleeve, a pressure gauge is fixedly installed at the top end of the pressure detection rod, a side connection spring is fixedly installed on the side wall of the pressure detection rod, an installation inner shell is slidably installed on a guide rail fixedly installed in the casing, an organic liquid tank is fixedly installed in the installation inner shell, and adsorption active carbon is arranged on a bracket which is installed on the inner wall of the installation inner shell above the organic liquid tank;
the charging device comprises a casing, a charging battery box, a charging interface, an electric plate, a data receiving chip and a processing single chip microcomputer, wherein the charging battery box is fixedly installed on the outer wall of the rear side of the casing, the charging interface is arranged outside the charging battery box, the electric plate is fixedly installed in a cavity of the casing of the rear side, the data receiving chip and the processing single chip microcomputer are fixedly installed on the electric plate, a bottom hole is formed in the bottom of the casing, a rotating shaft is rotatably installed in the bottom hole, and a supporting bottom plate is fixedly installed at one end of the rotating shaft.
2. The internal gas pressure monitoring device of claim 1, wherein a digital display screen is embedded in the outer portion of the casing.
3. The apparatus for monitoring the internal pressure of a gas supply line as claimed in claim 1, wherein the combination of the housing and the gas supply line is provided with a leak-proof sealing cover fixedly mounted on the inner wall of the housing.
4. The device for monitoring the internal gas pressure of the gas supply pipeline according to claim 1, wherein a swivel is fixedly arranged at the top of the mounting plug, and a sealing outer gasket is fixedly arranged on the outer part of the upper end of the mounting plug.
5. The gas supply pipeline internal air pressure monitoring device as claimed in claim 1, wherein the two methane sensors are symmetrically installed about a longitudinal central axis of the casing, and the detection ends of the methane sensors are located at the bottom of the methane sensors.
6. The gas supply pipeline internal gas pressure monitoring device as claimed in claim 1, wherein two side connecting springs are symmetrically arranged about a longitudinal central axis of the pressure detection rod, and top ends of the side connecting springs are fixedly connected with an inner wall of the top surface of the casing.
7. The internal gas pressure monitoring device of claim 1, wherein the bottom end of the pressure detecting rod is inserted into the inner side of the pressure detecting rod through a pressure monitoring hole formed in the gas supply pipeline.
8. The device for monitoring the internal air pressure of the gas supply pipeline according to claim 1, wherein liquid feeding pipes are fixedly arranged on the outer walls of two sides of the shell, and one end of each liquid feeding pipe is opposite to a liquid guide pipe arranged on the side wall of the organic liquid tank.
9. The internal gas pressure monitoring device of claim 1, wherein the bottom of the support base plate is fixedly provided with a projection, and the support base plate is contacted and pressed with the bottom surface of the installation inner shell.
10. The internal gas pressure monitoring device of claim 1, wherein the output end of the methane sensor is electrically connected to the input end of the gas monitoring module, the output end of the gas monitoring module is electrically connected to the input end of the data transmission module, the output end of the data transmission module is electrically connected to the data receiving chip and the input end of the data processing module, the output end of the data processing module is electrically connected to the input end of the processing single chip, and the output end of the processing single chip is electrically connected to the input end of the audible and visual alarm.
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