CN217766404U - Pipeline installation fixed methane gas detector and methane gas detection system - Google Patents
Pipeline installation fixed methane gas detector and methane gas detection system Download PDFInfo
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- CN217766404U CN217766404U CN202221906580.7U CN202221906580U CN217766404U CN 217766404 U CN217766404 U CN 217766404U CN 202221906580 U CN202221906580 U CN 202221906580U CN 217766404 U CN217766404 U CN 217766404U
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- sensing probe
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Abstract
The utility model discloses a fixed methane gas detector of pipeline installation and methane gas detecting system, which comprises an instrument body, wherein an installation position is arranged inside the instrument body, the installation position inside the instrument body is provided with a signal processing board and a display board, a sealing cover on the instrument body is provided with an end cover, and a transparent explosion-proof glass plate capable of displaying the display board is arranged on the end cover; the lateral part of the instrument body is detachably and hermetically provided with a sensing probe used for detecting methane gas in the pipeline, the end part of the sensing probe is detachably and hermetically arranged on the natural gas emptying vertical pipe, and the output end of the sensing probe is connected with the input end of the signal processing plate. The utility model discloses it is direct with the lateral part of sensing probe setting at the instrument body to be provided with the thread that can join in marriage the dress with the natural gas line screw thread at the tip of sensing probe, and then make on sensing probe can the screw assembly natural gas line, and then realize the direct detection to gas in the natural gas line.
Description
Technical Field
The utility model relates to a methane gas detector technical field, more specifically relate to a fixed methane gas detector of pipeline installation and methane gas detecting system.
Background
In order to meet the national development requirements, natural gas is used as a high-efficiency low-carbon clean energy source, the emission of pollution areas can be reduced, the natural gas has good economy and environmental protection, the natural gas is widely applied to numerous industrial fields and household civilian use, coal and fuel oil are gradually replaced, the popularization rate is higher and higher, and in order to meet market demands, a long-distance natural gas pipeline, a matched branch transmission station and a cut-off valve chamber are built in a large scale.
Natural gas is used as clean energy to bring great convenience to our lives, but cannot be ignored to a little, and is flammable and explosive, once leakage happens, deflagration or fire is easy to happen, and casualties and property loss are caused.
The leakage inspection of natural gas is an important safe production work, and leakage inspection means is continuously improved from simpler foam leakage inspection liquid to various electronic detection instruments. However, many leak detection tools and leak detection technologies are directed to the leakage detection at the connection position of equipment, a set of vent pipelines for equipment maintenance or safety protection are arranged in the natural gas distribution station and the block valve chamber, when equipment maintenance is performed, natural gas in a part of pipe sections or equipment or even the whole station can be vented through the vent pipelines by using vent block valves according to needs, then vented through vent stand pipes, and the natural gas is discharged through the vent pipelines by using safety valves when overpressure jump occurs.
The situation that equipment is aged and the sealing performance is reduced is avoided in the long-term operation process of the equipment, if the sealing performance of the equipment directly connected with an emptying pipeline such as an emptying valve or a safety valve is reduced and the equipment fails, natural gas leaked during the process of equipment internal leakage is directly discharged to the high altitude of ten meters through an emptying vertical pipe and is not easy to be found by people, and potential safety hazards and unnecessary economic loss are formed.
The existing methane gas detector can only detect methane gas in the environment, cannot directly detect gas in a natural gas pipeline, and detects peripheral gas of the natural gas pipeline, so that the detection efficiency is poor due to the fact that the peripheral gas is easily interfered by factors such as wind and the like.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve provides a fixed methane gas detector of pipeline installation and methane gas detecting system to solve the problem in the background art, be convenient for direct mount on natural gas line, realize the direct detection to gas in the natural gas line.
In order to solve the technical problem, the utility model adopts the following technical proposal.
A fixed methane gas detector for pipeline installation comprises an instrument body, wherein an installation position is arranged in the instrument body, a signal processing board and a display board are arranged at the installation position in the instrument body in a positioning mode, an end cover is arranged on the instrument body in a sealing mode, and a transparent explosion-proof glass board capable of displaying the display board is arranged on the end cover; the lateral part of the instrument body is detachably and hermetically provided with a sensing probe used for detecting methane gas in the pipeline, the end part of the sensing probe is detachably and hermetically arranged on the natural gas emptying vertical pipe, and the output end of the sensing probe is connected with the input end of the signal processing plate.
Further optimizing technical scheme, the tip of sensing probe is provided with the thread that can join in marriage with the natural gas line screw thread.
Further optimize technical scheme, the lateral part of instrument body is fixed and is provided with a plurality of mounting panels, has seted up the mounting hole on each mounting panel.
According to the technical scheme, the cable pressing element capable of enabling the cable to penetrate through and pressing and positioning the cable to the instrument body can be detachably arranged on the side portion of the instrument body.
According to the technical scheme, a moisture-proof gasket and a sealing gasket are arranged between the cable pressing element and the instrument body.
Further optimize technical scheme, the instrument body lateral part relative with cable pressing element still is provided with the screw thread erection joint, installs end cap or wireless antenna or alarm lamp on the screw thread erection joint.
The methane gas detection system comprises pipeline installation fixed methane gas detectors arranged on a natural gas pipeline at intervals, wherein the output ends of the pipeline installation fixed methane gas detectors are respectively connected to branch controllers, the output ends of the branch controllers are connected with electromagnetic valves used for controlling the on-off of the natural gas pipeline and audible and visual alarms used for sending alarm prompts, and the branch controllers are connected with control terminals and carry out information interaction with the control terminals.
Due to the adoption of the technical scheme, the utility model has the following technical progress.
For in time eliminating the potential safety hazard and avoiding the tolerance loss, be fit for highly punching the installation at gas transmission station factory natural gas blow-down riser, install the fixed methane gas detector of pipeline formula installation on natural gas blow-down riser, and transmit the check data to SCADA system (control terminal) often, can master methane concentration in the natural gas blow-down riser the very first time, and then judge whether the equipment that links to each other with natural gas blow-down pipeline has interior hourglass, avoided detecting the peripheral gas of natural gas pipeline effectively and received factor interference such as wind easily and lead to its not good problem of detection efficiency.
The utility model discloses it is direct with the lateral part of sensing probe setting at the instrument body to be provided with the thread that can join in marriage the dress with the natural gas line screw thread at the tip of sensing probe, and then make on sensing probe can the screw assembly natural gas line, and then realize the direct detection to gas in the natural gas line.
Drawings
Fig. 1 is an exploded view of the present invention;
FIG. 2 is a schematic structural view of the present invention when the plug is installed;
fig. 3 is a schematic structural view of the present invention when a wireless antenna is installed;
FIG. 4 is a schematic view of the alarm lamp mounting structure of the present invention;
FIG. 5 is a schematic view of the present invention when installed on a natural gas pipeline;
FIG. 6 is a diagram of a 4-20mA signal connection system for the signal output of the pipeline-mounted fixed methane gas detector of the present invention;
fig. 7 is the utility model discloses the signal output of the fixed methane gas detector of pipeline installation is 485 signal connection system diagrams.
Wherein: 1. the instrument comprises an instrument body, 2, a sensing probe, 3, a mounting plate, 31, a mounting hole, 4, a signal processing plate, 5, a display plate, 6, an end cover, 7, a transparent explosion-proof glass plate, 8, a cable pressing element, 9, a moisture-proof gasket, 10, a sealing gasket, 11, a sealing ring, 12, a plug, 13, a wireless antenna, 14, an alarm lamp, 15, a pipeline installation fixed methane gas detector, 16, a branch controller, 17, an electromagnetic valve, 18, an audible and visual alarm, 19 and a 485 repeater.
Detailed Description
The present invention will be described in further detail with reference to the drawings and specific embodiments.
The references to "length", "width", "height", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. in the present invention are to be construed as references to the orientation or positional relationship shown in the drawings only for the convenience of describing the invention and for the simplicity of description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Unless otherwise specifically stated or limited, the terms "mounted," "connected," "secured," "disposed" and the like in the present application are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Example 1
A pipeline installation fixed methane gas detector is shown in a combined mode in figures 1-5 and comprises an instrument body 1, a signal processing plate 4, a display plate 5, an end cover 6, a transparent explosion-proof glass plate 7 and a sensing probe 2.
The inside of instrument body 1 is provided with the installation position, and the installation position location inside instrument body 1 is provided with signal processing board 4 and display panel 5. The signal processing board 4 is used for receiving the detection signal of the sensing probe 2 and processing the detection signal. The display panel 5 is used to display the processing information of the signal processing panel 4.
Sealed lid is equipped with end cover 6 on the instrument body 1, is provided with transparent explosion-proof glass board 7 on the end cover 6, can show display panel 5, and then the staff of being convenient for observes the condition whether has natural gas line to leak.
The lateral part of the instrument body 1 is detachably and hermetically provided with a sensing probe 2 for detecting methane gas in a pipeline, the end part of the sensing probe 2 is detachably and hermetically arranged on a natural gas emptying vertical pipe, and the output end of the sensing probe 2 is connected with the input end of a signal processing board 4.
The end of the sensing probe 2 is provided with a thread which can be assembled with the natural gas pipeline thread, so that the sensing probe 2 can be assembled on the natural gas pipeline thread. And the position of sensing probe 2 and natural gas line installation still is provided with the sealing washer subassembly to guarantee the sealing performance between sensing probe 2 and the natural gas line.
The lateral part of the instrument body 1 is fixedly provided with a plurality of mounting plates 3, and each mounting plate 3 is provided with a mounting hole 31. The natural gas pipeline can be further provided with an installation positioning plate, and the installation plate 3 is locked and positioned on the installation positioning plate, so that the firmness of the integral installation of the instrument is ensured.
The side part of the instrument body 1 is also detachably provided with a cable pressing element 8, and the cable pressing element 8 can enable the cable to pass through and press and position the cable on the instrument body 1.
A moisture-proof gasket 9 and a sealing gasket 10 are arranged between the cable pressing element 8 and the instrument body 1 to prevent external moisture from entering the instrument.
The side of the instrument body 1 opposite the cable compression element 8 is also provided with a threaded mounting nipple on which is mounted a plug 12 or a wireless antenna 13 or an alarm lamp 14. When instrument body 1 lateral part installation alarm lamp 14, make the utility model discloses can possess field data display function, explosion-proof audible and visual alarm function often simultaneously.
In addition, the threaded mounting joint is further provided with a sealing ring 11, so that the air tightness of the instrument can be ensured more conveniently.
The utility model provides a fixed methane gas detector of pipeline installation when using, can be directly through setting up in the thread knob to the natural gas line of 2 tip of sensing probe, detects the inside gas concentration of natural gas line to the information direct feedback after the detection is to signal processing board 4, and signal processing board 4 can handle the detected information and will detect information transmission and show to display panel 5. The worker can know the internal condition of the natural gas pipeline by observing the information of the display panel 5. Furthermore, the utility model discloses a but go up direct mount alarm lamp 14 on the screw thread erection joint, signal processing board 4 controls alarm lamp 14 and reports to the police when the natural gas leakage condition appears.
Example 2
The methane gas detection system comprises a pipeline installation fixed methane gas detector, a sub-controller, an electromagnetic valve, an audible and visual alarm and a control terminal.
The pipeline-mounted fixed methane gas detector 15 is the apparatus in embodiment 1, and a plurality of the pipeline-mounted fixed methane gas detectors are arranged on the natural gas pipeline at intervals.
The output ends of the fixed methane gas detectors of the pipeline installation are respectively connected to the branch controllers 16, the output ends of the branch controllers 16 are connected with electromagnetic valves 17 used for controlling the on-off of the natural gas pipelines and audible and visual alarms 18 used for giving out alarm prompts, and the branch controllers 16 are connected with control terminals and carry out information interaction with the control terminals.
The signal output type of the fixed methane gas detector 15 installed on the pipeline comprises a three-wire system 4-20mA +1 relay (switching value), a three-wire system current 4-20mA + RS-485+1 relay (switching value), and the like. Wherein, the 4-20mA signal connection system diagram is shown in FIG. 6, and the 485 signal connection system diagram is shown in FIG. 7. A 485 repeater 19 is also provided in the 485 signal connection system diagram.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. Fixed methane gas detector of pipeline installation, its characterized in that: the instrument comprises an instrument body (1) with an installation position arranged inside, wherein a signal processing board (4) and a display board (5) are arranged at the installation position in the instrument body (1) in a positioning manner, an end cover (6) is arranged on the instrument body (1) in a sealing manner, and a transparent explosion-proof glass plate (7) capable of displaying the display board (5) is arranged on the end cover (6); the side part of the instrument body (1) is detachably and hermetically provided with a sensing probe (2) used for detecting methane gas in a pipeline, the end part of the sensing probe (2) is detachably and hermetically arranged on a natural gas emptying vertical pipe, and the output end of the sensing probe (2) is connected to the input end of a signal processing board (4).
2. The pipeline-mounted stationary methane gas detector according to claim 1, wherein: the end part of the sensing probe (2) is provided with screw threads which can be assembled with natural gas pipeline threads.
3. The pipeline-mounted stationary methane gas detector according to claim 1, wherein: the instrument is characterized in that a plurality of mounting plates (3) are fixedly arranged on the side portion of the instrument body (1), and each mounting plate (3) is provided with a mounting hole (31).
4. The pipeline-mounted stationary methane gas detector according to claim 1, wherein: the side part of the instrument body (1) can also be detachably provided with a cable pressing element (8) which can enable a cable to pass through and press and position the cable on the instrument body (1).
5. The pipeline-mounted stationary methane gas detector according to claim 4, wherein: a moisture-proof gasket (9) and a sealing gasket (10) are arranged between the cable pressing element (8) and the instrument body (1).
6. The pipeline-mounted stationary methane gas detector according to claim 4, wherein: the side part of the instrument body (1) opposite to the cable pressing element (8) is also provided with a threaded mounting joint, and a plug (12) or a wireless antenna (13) or an alarm lamp (14) is mounted on the threaded mounting joint.
7. Methane gas detecting system, its characterized in that: the pipeline installation fixed methane gas detector comprises pipeline installation fixed methane gas detectors which are arranged on a natural gas pipeline at intervals and are as claimed in any one of claims 1 to 6, wherein the output end of each pipeline installation fixed methane gas detector is respectively connected to a sub-controller, the output end of the sub-controller is connected with an electromagnetic valve used for controlling the on-off of the natural gas pipeline and an audible and visual alarm used for sending an alarm prompt, and the sub-controller is connected with a control terminal and performs information interaction with the control terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221906580.7U CN217766404U (en) | 2022-07-20 | 2022-07-20 | Pipeline installation fixed methane gas detector and methane gas detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221906580.7U CN217766404U (en) | 2022-07-20 | 2022-07-20 | Pipeline installation fixed methane gas detector and methane gas detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217766404U true CN217766404U (en) | 2022-11-08 |
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ID=83876240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221906580.7U Active CN217766404U (en) | 2022-07-20 | 2022-07-20 | Pipeline installation fixed methane gas detector and methane gas detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217766404U (en) |
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2022
- 2022-07-20 CN CN202221906580.7U patent/CN217766404U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jinzhou Jiantou Gas Co.,Ltd. Assignor: HEBEI NATURAL GAS Co.,Ltd. Contract record no.: X2023980038812 Denomination of utility model: Pipeline installation fixed methane gas detector and methane gas detection system Granted publication date: 20221108 License type: Common License Record date: 20230728 |