Gas leakage monitoring device for gas pipeline

Abstract

The utility model discloses a gas pipeline leakage monitoring device, which relates to the technical field of pipeline monitoring equipment and comprises symmetrically arranged gas pipeline bodies, an upper shell is arranged at the top end of the outer side of each gas pipeline body, a lower shell is arranged at the bottom end of the outer side of each gas pipeline body, and the upper shells and the lower shells are connected through fixing mechanisms. A monitoring alarm mechanism is arranged at the top end of the upper shell. The gas leakage monitoring and alarming device is scientific and novel in structure, gas leakage monitoring and alarming are conducted on the outer side of the gas pipeline body, the gas leakage condition can be detected in time, surrounding personnel are rapidly notified through the monitoring and alarming mechanism, and the capacity of finding gas leakage and taking emergency measures is greatly improved; by arranging the upper shell and the lower shell, better sealing performance can be guaranteed when the device is installed, the improvement of the sealing performance is beneficial to preventing external factors from influencing the monitoring precision, and the stability of the monitoring device on air leakage monitoring is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline monitoring equipment, in particular to a gas pipeline leakage monitoring device. Background Art

[0002] With the development of urban construction, urban areas have gradually expanded outward, and many paddy fields have been turned into urban areas or industrial land. Many buildings have been built beside the mountains. Natural gas pipelines are buried underground. After the pipelines are buried, the foundation sinks locally, and the pipes tilt accordingly, causing parts of the pipes to deform, crack or detach, resulting in leakage. At present, in order to monitor gas pipeline leakage, some monitoring devices are installed. Therefore, it is necessary to quickly detect and alarm for gas pipeline leakage.

[0003] For example, China CN216813793U provides a natural gas transmission pipeline monitoring device, including a monitoring component, which includes a pipe body, a sealing box, a connecting box, a connecting pipe, a rectangular groove, a positioning rod, a movable plate, a first spring, and an airbag; it is convenient for real-time monitoring of the pipeline connection. However, when the above monitoring device performs gas leakage detection, the gas leakage monitoring is achieved by the expansion of the airbag, and the time required from the start of the gas leakage to the expansion of the airbag and then triggering the alarm may be long. Therefore, in an emergency, it may not be enough to give a timely warning, increasing safety hazards. Utility Model Content

[0004] In view of the problems in the related technology, the utility model proposes a gas pipeline leakage monitoring device to overcome the above technical problems existing in the existing related technology.

[0005] To this end, the specific technical solutions adopted by the utility model are as follows:

[0006] A gas pipeline leakage monitoring device comprises a symmetrically arranged gas pipeline body, an upper shell is arranged at the outer top end of the gas pipeline body, a lower shell is arranged at the outer bottom end of the gas pipeline body, the upper shell and the lower shell are connected by a fixing mechanism, and a monitoring alarm mechanism is arranged at the top end of the upper shell.

[0007] Furthermore, in order to achieve the installation of the monitoring device, under the action of sealing gasket 1, the sealing of the monitoring device during installation can be ensured, which helps to prevent external factors from affecting the monitoring accuracy. A placement groove 1 is opened at both ends of the inner wall of the upper shell, and a sealing gasket 1 is arranged inside the placement groove 1.

[0008] Furthermore, in order to achieve coordinated installation with the fixing mechanism, a connecting plate 1 is provided at the bottom of both sides of the upper shell, an opening 1 is provided on one side of the connecting plate 1, a card groove 1 is provided on the side walls at both ends of the opening, and the cross-section of the card groove 1 is an inverted L-shape; positioning holes are provided at both ends of the top of the connecting plate 1.

[0009] Furthermore, in order to install the monitoring device, under the action of the second sealing gasket, the sealing performance of the monitoring device is ensured, and placement grooves 2 are provided at both ends of the inner wall of the lower shell, and the interior of the second placement groove is provided with a second sealing gasket.

[0010] Furthermore, in order to achieve coordinated installation with the fixing mechanism, connecting plates 2 are provided on the top of both sides of the lower shell body, opening 2 is provided on one side of the connecting plate 2, and slots 2 are provided on the side walls at both ends of the opening 2, and the cross-section of the slots 2 is L-shaped; positioning columns cooperating with the positioning holes are provided at both ends of the top of the connecting plate 2.

[0011] Furthermore, in order to achieve the installation of the upper shell and the lower shell, the U-shaped structure of the card block and the design of the matching threaded rod and the driving rod enable the installer to easily fix the monitoring device on the gas pipeline, or quickly disassemble it when maintenance and inspection are required. The fixing mechanism includes a card block symmetrically arranged between opening one and opening two, the cross-section of the card block is a U-shaped structure, and the card block is respectively matched with card slot one and card slot two, a threaded rod is arranged on one side of the card block, and a driving rod is arranged between the threaded rods; threaded holes matching with the threaded rods are opened on the side walls at both ends of the driving rod.

[0012] Furthermore, in order to make the monitoring capability of the monitoring device more sensitive and accurate, and to be able to quickly respond to gas leaks, issue alarms in a timely manner, minimize potential safety hazards, and greatly improve the safety of gas use, the monitoring alarm mechanism includes a box body arranged at the top of the upper shell body, a cover plate is arranged at the top of the box body, and an alarm light is arranged at the top of the cover plate; a natural gas detector is arranged on one side of the bottom end of the box body, a baffle is embedded on the other side of the bottom end of the box body, and the baffle is connected to the bottom end of the box body by a number of bolts, and a conduit penetrating the baffle is arranged on one side of the natural gas detector, and a probe is arranged at the bottom end of the conduit.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model has a scientific and novel structure. By performing gas leakage monitoring and alarm on the outside of the gas pipeline body, gas leakage can be detected in time, and the surrounding personnel can be quickly notified through the monitoring and alarm mechanism, which greatly improves the ability to detect gas leakage and take emergency measures.

[0015] 2. By setting up the upper shell and the lower shell, better sealing can be ensured when the device is installed. The improvement of the sealing performance helps to prevent external factors from affecting the monitoring accuracy and ensures the stability of the monitoring device in leak monitoring.

[0016] 3. By setting up a fixing mechanism, the installation of the upper shell and the lower shell is realized, and the U-shaped structure of the block and the design of the threaded rod and the driving rod enable the installer to easily fix the monitoring device on the gas pipeline, or quickly disassemble it when maintenance and inspection are required.

[0017] 4. By setting up a monitoring alarm mechanism, the monitoring device's monitoring capabilities become more sensitive and accurate, and it can quickly respond to gas leaks and issue alarms in a timely manner, thereby minimizing potential safety hazards and greatly improving the safety of gas use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a gas pipeline leakage monitoring device according to an embodiment of the utility model;

[0020] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0021] Figure 3 It is an assembly diagram of an upper shell, a lower shell and a fixing mechanism in a gas pipeline leakage monitoring device according to an embodiment of the utility model;

[0022] Figure 4 It is a three-dimensional assembly diagram of an upper shell, a lower shell and a fixing mechanism of a gas pipeline leakage monitoring device according to an embodiment of the utility model;

[0023] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;

[0024] Figure 6 It is a three-dimensional assembly diagram of a fixing mechanism in a gas pipeline leakage monitoring device according to an embodiment of the utility model;

[0025] Figure 7 The utility model is an assembly diagram of an upper shell technical monitoring and alarm mechanism in a gas pipeline leakage monitoring device according to an embodiment of the utility model.

[0026] In the figure:

[0027] 1. Gas pipeline body; 2. Upper shell; 201. Placement slot 1; 202. Sealing gasket 1; 203. Connecting plate 1; 204. Opening 1; 205. Card slot 1; 206. Positioning hole; 3. Lower shell; 301. Placement slot 2; 302. Sealing gasket 2; 303. Connecting plate 2; 304. Opening 2; 305. Card slot 2; 306. Positioning column; 4. Fixing mechanism; 401. Block; 402. Threaded rod; 403. Driving rod; 4031. Threaded hole; 5. Monitoring and alarm mechanism; 501. Box body; 502. Cover plate; 503. Alarm light; 504. Natural gas detector; 505. Baffle; 506. Conduit; 507. Probe. DETAILED DESCRIPTION

[0028] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] According to an embodiment of the utility model, a gas pipeline leakage monitoring device is provided.

[0030] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-Figure 7 As shown, the gas pipeline leakage monitoring device according to the embodiment of the utility model includes a symmetrically arranged gas pipeline body 1, characterized in that an upper shell 2 is arranged at the outer top end of the gas pipeline body 1, and a lower shell 3 is arranged at the outer bottom end of the gas pipeline body 1, the upper shell 2 and the lower shell 3 are connected by a fixing mechanism 4, and a monitoring alarm mechanism 5 is arranged at the top of the upper shell 2.

[0031] With the aid of the above-mentioned technical scheme of the utility model, the structure of the utility model is scientific and novel. By performing gas leakage monitoring and alarm on the outside of the gas pipeline body 1, gas leakage can be detected in time, and the surrounding personnel can be quickly notified through the monitoring alarm mechanism 5, which greatly improves the ability to detect gas leakage and take emergency measures.

[0032] In one embodiment, for the upper shell 2 and the lower shell 3, both ends of the inner wall of the upper shell 2 are provided with a placement groove 201, and a sealing gasket 202 is arranged inside the placement groove 201; both sides of the bottom of the upper shell 2 are provided with a connecting plate 203, one side of the connecting plate 203 is provided with an opening 204, and both ends of the side walls of the opening 204 are provided with a card groove 205, and the cross section of the card groove 205 is an inverted L-shaped shape; both ends of the top of the connecting plate 203 are provided with positioning holes 206; both ends of the inner wall of the lower shell 3 are provided with a placement groove 201, and a sealing gasket 202 is arranged inside the placement groove 201; both ends of the bottom of the upper shell 2 are provided with a connecting plate 203, and an opening 204 is arranged on one side of the connecting plate 203, and a card groove 205 is arranged on both ends of the side walls of the opening 204, and the cross section of the card groove 205 is an inverted L-shaped shape; both ends of the top of the connecting plate 203 are provided with positioning holes 206; A sealing gasket 302 is arranged inside the groove 301; a connecting plate 303 is arranged on the top of both sides of the lower shell 3, an opening 304 is opened on one side of the connecting plate 303, and a card groove 305 is opened on the side walls at both ends of the opening 304, and the cross-section of the card groove 305 is L-shaped; positioning columns 306 matching with the positioning holes 206 are arranged at both ends of the top of the connecting plate 303, which can ensure better sealing when the device is installed. The improvement of the sealing performance helps to prevent external factors from affecting the monitoring accuracy and ensures the stability of the monitoring device in leak monitoring.

[0033] In one embodiment, for the above-mentioned fixing mechanism 4, the fixing mechanism 4 includes a block 401 symmetrically arranged between the opening 1 204 and the opening 2 304, the cross-section of the block 401 is a U-shaped structure, and the block 401 is respectively matched with the slot 1 205 and the slot 2 305, a threaded rod 402 is arranged on one side of the block 401, and a driving rod 403 is arranged between the threaded rods 402; threaded holes 4031 matched with the threaded rods 402 are arranged on the side walls at both ends of the driving rod 403, thereby realizing the installation of the upper shell 2 and the lower shell 3, and the U-shaped structure of the block 401 and the design of matching the threaded rod 402 and the driving rod 403, so that the installer can easily fix the monitoring device on the gas pipeline, or quickly disassemble it when maintenance and inspection are required.

[0034] The working principle of the fixing mechanism 4 is as follows: after the upper shell 2 and the lower shell 3 are placed on the gas pipeline body 1, the positioning column 306 is inserted into the positioning hole 206, and then one of the card blocks 401 is inserted into the inside of the card slot 1 205 and the card slot 2 305 respectively, and then the driving rod 403 is rotated, and with the cooperation of the threaded rod 402 and the threaded hole 4031, the other card block 401 is inserted into the inside of the other card slot 1 205 and the card slot 2 305, and then the installation and fixation of the upper shell 2 and the lower shell 3 are realized.

[0035] In one embodiment, for the above-mentioned monitoring and alarm mechanism 5, the monitoring and alarm mechanism 5 includes a box body 501 arranged at the top of the upper shell body 2, a cover plate 502 is arranged at the top of the box body 501, and an alarm light 503 is arranged at the top of the cover plate 502; a natural gas detector 504 is arranged on one side of the bottom end of the box body 501, a baffle 505 is embedded on the other side of the bottom end of the box body 501, and the baffle 505 is connected to the bottom end of the box body 501 by a plurality of bolts, a conduit 506 penetrating the baffle 505 is arranged on one side of the natural gas detector 504, and a probe 507 is arranged at the bottom end of the conduit 506, so that the monitoring capability of the monitoring device is more sensitive and accurate, and it can quickly respond to gas leaks, issue alarms in time, minimize potential safety hazards, and greatly improve the safety of gas use.

[0036] In addition, it should be noted that the model of the natural gas detector 504 is RBBJ-T20, the probe 507 is formed with an air inlet, and an automatic opening and closing device for controlling the closing or opening of the air inlet is arranged at the outer end of the air inlet. The automatic opening and closing device includes a mounting sleeve fixedly connected to the probe body and sleeved on the outer periphery of the air inlet, a plurality of sealing plates penetrating the mounting sleeve and guided and moved on the mounting sleeve, and a linkage control assembly for controlling the guided movement of the plurality of sealing plates. The guided movement of the plurality of sealing plates can change between mutual engagement and relative separation states. The plurality of sealing plates close the air inlet when they are mutually engaged and open the air inlet when they are relatively separated. A control unit is connected to the outer side of the sealing plate, and a first reset mechanism arranged along the guiding movement direction of the sealing plate is connected between the control unit and the mounting sleeve. A control slope is formed at the upper end of the control unit, which is used to cooperate with the linkage control assembly to drive the guiding movement of the sealing plate. The structural components of the above-mentioned natural gas detector 504 and the probe 507 are prior art, and will not be elaborated on in detail here.

[0037] The working principle of the monitoring alarm mechanism 5 is: the natural gas concentration at the connection of the gas pipeline body 1 is monitored in real time through the probe 507, and the monitoring data is transmitted to the natural gas detector 504 for data processing. Once the natural gas detector 504 detects that the gas concentration exceeds the safety threshold, it will immediately process the signal and determine it as a gas leak. Then the natural gas detector 504 will trigger the alarm light 503 to alarm.

[0038] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0039] In actual application, first, the upper shell 2 and the lower shell 3 are placed on the outside of the gas pipeline body 1, and then the upper shell 2 and the lower shell 3 are fixed by the fixing mechanism 4, and then the connection of the gas pipeline body 1 is monitored for gas leakage through the monitoring alarm mechanism 5.

[0040] In summary, with the aid of the above-mentioned technical scheme of the utility model, the structure of the utility model is scientific and novel. By performing gas leakage monitoring and alarm on the outer side of the gas pipeline body 1, gas leakage can be detected in time, and the surrounding personnel can be quickly notified through the monitoring alarm mechanism 5, which greatly improves the ability to detect gas leakage and take emergency measures; by setting the upper shell 2 and the lower shell 3, better sealing can be guaranteed when the device is installed. This improvement in sealing performance helps to prevent external factors from affecting the monitoring accuracy and ensures the stability of the monitoring device for gas leakage monitoring; by setting the fixing mechanism 4, the installation of the upper shell 2 and the lower shell 3 is realized, and the U-shaped structure of the block 401 and the design of the matching threaded rod 402 and the drive rod 403 enable the installer to easily fix the monitoring device on the gas pipeline, or quickly disassemble it when maintenance and inspection are required; by setting the monitoring alarm mechanism 5, the monitoring capability of the monitoring device is made more sensitive and accurate, and it can quickly respond to gas leaks, issue alarms in time, minimize potential safety hazards, and greatly improve the safety of gas use.

[0041] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas pipeline leakage monitoring device, comprising a symmetrically arranged gas pipeline body (1), characterized in that: An upper shell (2) is arranged at the outer top end of the gas pipeline body (1), and a lower shell (3) is arranged at the outer bottom end of the gas pipeline body (1); the upper shell (2) and the lower shell (3) are connected via a fixing mechanism (4), and a monitoring alarm mechanism (5) is arranged at the top end of the upper shell (2); The monitoring alarm mechanism (5) comprises a box body (501) arranged at the top end of the upper shell (2), a cover plate (502) is arranged at the top end of the box body (501), and an alarm light (503) is arranged at the top end of the cover plate (502); A natural gas detector (504) is arranged on one side of the bottom end of the box body (501), a baffle (505) is embedded on the other side of the bottom end of the box body (501), and the baffle (505) is connected to the bottom end of the box body (501) via a plurality of bolts, a conduit (506) penetrating the baffle (505) is arranged on one side of the natural gas detector (504), and a probe (507) is arranged at the bottom end of the conduit (506); The bottom of both sides of the upper shell (2) are provided with a connecting plate (203), one side of the connecting plate (203) is provided with an opening (204), both end side walls of the opening (204) are provided with a card slot (205), and the cross section of the card slot (205) is an inverted L-shape; both ends of the top of the connecting plate (203) are provided with positioning holes (206); The top of both sides of the lower shell (3) is provided with a second connecting plate (303), one side of the second connecting plate (303) is provided with a second opening (304), both end side walls of the second opening (304) are provided with a second card slot (305), and the cross section of the second card slot (305) is L-shaped; both ends of the top of the second connecting plate (303) are provided with positioning posts (306) that match the positioning holes (206); The fixing mechanism (4) comprises a clamping block (401) symmetrically arranged between the first opening (204) and the second opening (304); the cross section of the clamping block (401) is a U-shaped structure, and the clamping block (401) is respectively matched with the first clamping slot (205) and the second clamping slot (305); a threaded rod (402) is arranged on one side of the clamping block (401), and a driving rod (403) is arranged between the threaded rods (402).

2. A gas pipeline leakage monitoring device according to claim 1, characterized in that: Both ends of the inner wall of the upper shell (2) are provided with a placement groove (201), and a sealing gasket (202) is arranged inside the placement groove (201).

3. A gas pipeline leakage monitoring device according to claim 2, characterized in that: Two ends of the inner wall of the lower shell (3) are provided with a second placement groove (301), and a second sealing gasket (302) is arranged inside the second placement groove (301).

4. A gas pipeline leakage monitoring device according to claim 3, characterized in that: The side walls at both ends of the driving rod (403) are provided with threaded holes (4031) that match the threaded rod (402).

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