Pipeline leakage detection device for SCADA (supervisory control and data acquisition) system

Abstract

The utility model relates to the related technical field of gas pipelines, in particular to a pipeline leakage detection device for an SCADA (supervisory control and data acquisition) system, which comprises an upper arc clamping block and a lower arc clamping block which are combined on a pipeline, and further comprises a connecting mechanism, a detection mechanism and a control mechanism, the upper arc clamping block and the lower arc clamping block are fixedly mounted outside a to-be-detected pipeline; and the gas collection mechanism is used for gathering and collecting gas leaked from the to-be-detected pipeline and conveying the gas to the detection end of the leakage probe. According to the utility model, through the leakage probe connected with the gas collection mechanism, gas at a certain leakage point of the to-be-detected pipeline can be gathered and collected and conveyed to the leakage probe, so that an operator can conveniently detect the SCADA system pipeline, and the effect of detecting the SCADA system pipeline is achieved; and through the arrangement of the connecting mechanism, the device can be fixedly installed outside the to-be-detected pipeline conveniently, and the device is suitable for multi-pipe-diameter installation and is convenient to operate.

Description

Technical Field

[0001] This utility model relates to the technical field of gas pipelines, specifically to a pipeline leak detection device for SCADA systems. Background Technology

[0002] SCADA systems are the foundation of pipeline safety monitoring. Currently, some enterprises' gas area R-SCADA systems are designed for centralized deployment, achieving cross-regional pipeline network control interconnection and centralized monitoring management, unified technical standards for station equipment, eliminating the need for member companies to invest in local system construction and maintenance, shielding against cybersecurity risks, and supporting subsequent unified gas dispatch and display functions. Simultaneously, gas alarms are integrated into the system for comprehensive gas safety protection, and this technology has been widely adopted in the gas industry.

[0003] Currently, during use, SCADA system pipes and valves may break or break, leading to gas leaks during transportation that are difficult to detect and can cause safety accidents.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings and provide a pipeline leak detection device for SCADA systems.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a SCADA system pipeline leakage detection device, comprising an upper arc clamp and a lower arc clamp assembled on a pipeline, wherein a leakage probe for detecting pipeline leakage is provided on the upper arc clamp, and further comprising:

[0007] The connecting mechanism includes an upper connecting plate and a lower fixing groove respectively disposed close to each other on the upper arc clamping block and the lower arc clamping block, for fixing the upper arc clamping block and the lower arc clamping block to the outside of the pipe to be inspected;

[0008] A gas collection mechanism is installed on the upper arc clamp and connected to the detection end of the leak probe. It is used to collect the gas leaking from the pipeline to be tested and deliver it to the detection end of the leak probe.

[0009] Furthermore, the gas collection mechanism includes:

[0010] The outer casing is mounted on the upper arc clamping block and the leakage probe is fixedly installed thereon.

[0011] The gas collection unit, which is slidably disposed on an opening on one side of the outer casing, is used to gather and collect leaked gas from the pipeline to be tested and deliver it to the leak probe.

[0012] Furthermore, the gas collection unit includes an air inlet chamber disposed within the outer casing, an opening disposed on the air inlet chamber and communicating with the detection end of the leak probe, a negative pressure suction fan disposed inside the air inlet chamber and in front of the opening in the air inlet direction, a filter plate disposed at the air inlet end of the air inlet chamber and with an opening on one side of the outer casing, and guide blocks that slide on the inner wall of the outer casing are disposed on both sides of the inner surface of the filter plate.

[0013] Furthermore, the lower ends of the upper connecting plate are provided with insert blocks that can be inserted into the lower fixing groove, and a fastening nut is provided in a groove on one side of the upper surface of the upper connecting plate.

[0014] Furthermore, a stud is rotatably provided in the lower fixing groove corresponding to the fastening nut.

[0015] Furthermore, a compression arc plate with a spring is horizontally arranged on the inner side of the lower arc clamping block and at the corresponding connection point. One side of the compression arc plate abuts against a bracket that has a limit sliding on the side of the lower fixed groove. A lead screw is movably arranged on the support surface of the bracket, and a worm gear is arranged on the lead screw.

[0016] Furthermore, a worm sleeve fitted onto one side of the worm gear is engaged with the stud section.

[0017] Compared with the prior art, the present invention has the following advantages: The present invention, through the use of a gas collection mechanism connected to a leak probe on the upper arc clamp, can gather and collect gas from a leak point in the pipeline to be tested and transport it to the leak probe, which helps the operator to conveniently test the SCADA system pipeline and achieve the effect of testing the SCADA system pipeline, thereby improving the working efficiency of the device; and through the set connection mechanism, the device of this embodiment can be easily fixedly installed outside the pipeline to be tested, is suitable for multi-diameter installation, and is easy to operate. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 This is a perspective view of the overall structure of an embodiment of the present utility model.

[0020] Figure 2 This is a perspective view of the relevant structures on the upper arc clamping block according to an embodiment of the present invention.

[0021] Figure 3 This is a perspective view of the relevant structures on the lower arc clamping block according to an embodiment of the present invention.

[0022] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This is a perspective view of the gas collection unit according to an embodiment of the present invention.

[0024] In the diagram: 1. Upper arc clamping block; 2. Lower arc clamping block; 3. Leakage probe; 4. Connecting mechanism; 41. Upper connecting plate; 411. Insert block; 42. Lower fixing groove; 43. Fastening nut; 44. Stud; 45. Extrusion arc plate; 451. Spring; 46. Bracket; 47. Lead screw; 48. Worm gear; 49. Worm sleeve; 5. Gas collection mechanism; 51. Outer box; 52. Gas collection unit; 521. Air inlet chamber; 522. Port; 523. Fan; 524. Filter plate; 525. Guide block. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0027] like Figure 1-5 As shown, this utility model discloses a pipeline leak detection device, applied to a SCADA system, for detecting gas leaks at a possible leak point in the SCADA system pipeline. It includes an upper arc clamp 1 and a lower arc clamp 2 assembled on the pipeline. The upper arc clamp 1 is equipped with a leak probe 3 for detecting pipeline leaks. The device also includes:

[0028] The connecting mechanism 4 includes an upper connecting plate 41 and a lower fixing groove 42 respectively disposed close to each other on the upper arc clamping block 1 and the lower arc clamping block 2, for fixing the upper arc clamping block 1 and the lower arc clamping block 2 to the outside of the pipe to be inspected;

[0029] The gas collection mechanism 5 is installed on the upper arc clamp 1 and is connected to the detection end of the leak probe 3. It is used to collect the gas leaking from the pipeline to be tested and transport it to the detection end of the leak probe 3.

[0030] In specific implementation, the upper connecting plate 41 and the lower fixing groove 42 in the connecting mechanism 4 can be used to form a closed connection between the upper arc clamp 1 and the lower arc clamp 2 in this embodiment outside the pipeline to be tested, thereby achieving a fixing effect outside the pipeline to be tested. Furthermore, the gas collection mechanism 5 on the upper arc clamp 1, which is connected to the leak probe 3, can gather and collect the gas from a certain leak point in the pipeline to be tested and transport it to the leak probe 3, which helps the operator to conveniently test the SCADA system pipeline and achieve the effect of testing the SCADA system pipeline.

[0031] It should be noted that the pipes fixedly installed by the upper arc clamp 1 and the lower arc clamp 2 in this embodiment are SCADA system pipes, and the installation positions are respectively located at the pipe valve connection, pipe bend or diameter change, the main pressure and flow detection points on the pipe, and are equally spaced in the straight section of the long pipe.

[0032] It should be noted that the leak probe 3 includes, but is not limited to, acquiring the current methane concentration index, and the leak probe 3 has, in addition to the detection structure required for SCADA system pipelines, a warning structure.

[0033] In one embodiment, the gas collection mechanism 5 includes:

[0034] The outer casing 51 is mounted on the upper arc clamping block 1 and the leakage probe 3 is fixedly installed thereon.

[0035] The gas collection unit 52, slidably disposed on an opening on one side of the outer casing 51, is used to gather and collect leaked gas from the pipeline to be detected and deliver it to the leak probe 3. This design, with the outer casing 51 welded to the upper arc clamp 1 and its internal cavity connected to the detection end of the leak probe 3, allows leaked gas from the SCADA system pipeline to be gathered and collected by the gas collection unit 52, which is pulled and assembled into the opening on one side of the outer casing 51, and delivered to the detection end of the leak probe 3. This achieves the gas collection function, ensures the detection accuracy of the leak probe 3, and enhances the detection effect of the leak probe 3.

[0036] In one embodiment, the gas collection unit 52 includes an air inlet chamber 521 disposed within the outer casing 51 and an opening 522 disposed on the air inlet chamber 521 and communicating with the detection end of the leakage probe 3. A negative pressure suction fan 523 is disposed inside the air inlet chamber 521 and in front of the air inlet direction of the opening 522. A filter plate 524 is disposed at the air inlet end of the air inlet chamber 521 and opened on one side of the outer casing 51. Guide blocks 525 that slide on the inner wall of the outer casing 51 are disposed on both sides of the inner surface of the filter plate 524. This design allows the gas collection unit 52 to be pulled and assembled inside the outer casing 51 by guide blocks 525 welded on both sides of the filter plate 524, facilitating subsequent periodic inspection and maintenance. Furthermore, the air inlet chamber 521 connected to the end face of the filter plate 524 and the fan 523 inserted into one side of the air inlet chamber 521 can draw the gas outside the SCADA system pipeline into the through-hole 522 on one side of the air inlet chamber 521 under the negative pressure suction of the fan 523. This achieves the concentration and intake of the gas, ensuring the gas concentration and improving the detection accuracy of the leak probe 3.

[0037] It should be noted that the porous structure on filter plate 524 has a dustproof effect, reducing the amount of dust that may enter and affect the test results.

[0038] In one embodiment, the lower ends of the upper connecting plate 41 are provided with inserts 411 that are inserted into the lower fixing groove 42, and a fastening nut 43 is provided in a groove on one side of the upper surface of the upper connecting plate 41. With this design, the inserts 411 welded to the lower surface of the upper connecting plate 41 can enter the lower fixing groove 42 when the upper connecting plate 41 is operated by moving vertically on one side of the upper arc clamping block 1, thereby closing the close-to-each ends of the upper arc clamping block 1 and the lower arc clamping block 2; and a rotatable fastening nut 43 is placed in a groove machined on the upper connecting plate 41.

[0039] In one embodiment, a stud 44 is rotatably disposed within the lower fixing groove 42 corresponding to the fastening nut 43. This design allows the stud 44 to be rotatably connected to the centerline of the fastening nut 43 via a bearing within the lower fixing groove 42, and the threaded portion at the top of the stud 44 is rotated and fixed to the internal thread of the fastening nut 43, achieving a locking effect.

[0040] In one embodiment, a compression arc plate 45 with a spring 451 fixed to it is horizontally arranged inside the lower arc clamping block 2 and at the corresponding connection point. One side of the compression arc plate 45 abuts against a bracket 46 that has a limit sliding on one side of the lower fixed groove 42. A lead screw 47 is movably arranged on the support surface of the bracket 46, and a worm gear 48 is arranged on the lead screw 47. With this design, the compression arc plate 45, which is horizontally welded to the other end of the spring 451 welded to the inner side of the lower arc clamping block 2, can adaptively adjust the distance of the compression arc plate 45 outside the SCADA system pipeline according to the elastic action of the spring 451. The bracket 46 abutting on one side of the compression arc plate 45 and the lead screw 47, which is rotatably connected by a horizontally machined through-hole internal thread groove on the bracket 46, will cause the support 46, which is threadedly connected to the lead screw 47, to move linearly along the horizontal plane when the lead screw 47 is rotated by an external force. This will cause the compression arc plate 45 to move closer to the outer surface of the SCADA system pipeline, allowing the device of this embodiment to be fixedly installed outside the SCADA system pipeline.

[0041] In one embodiment, a worm sleeve 49, which is fitted onto a section of the stud 44, engages with one side of the worm wheel 48. This design, by fixing the worm sleeve 49 around one end of the stud 44 and engaging with the worm wheel 48 fitted onto the lead screw 47, allows the worm sleeve 49 to rotate when the stud 44 rotates. This rotation, in turn, drives the worm wheel 48 to rotate, causing the lead screw 47 fitted onto the end face of the worm wheel 48 to rotate. This achieves force transmission and provides good performance.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. A SCADA system pipeline leak detection device, comprising an upper arc clamp (1) and a lower arc clamp (2) assembled on a pipeline, wherein a leak probe (3) for detecting pipeline leaks is provided on the upper arc clamp (1), characterized in that, Also includes: The connecting mechanism (4) includes an upper connecting plate (41) and a lower fixing groove (42) respectively disposed close to each other on the upper arc clamping block (1) and the lower arc clamping block (2), for fixing the upper arc clamping block (1) and the lower arc clamping block (2) to the outside of the pipe to be inspected; The upper connecting plate (41) has two insert blocks (411) on both sides of its lower end that are inserted into the lower fixing groove (42). A fastening nut (43) is provided in a groove on one side of the upper surface of the upper connecting plate (41). A stud (44) is provided in the lower fixing groove (42) corresponding to the fastening nut (43). The inner side of the lower arc clamp (2) and the corresponding connection point are provided with a compression arc plate (45) with a spring (451) fixed on it. One side of the compression arc plate (45) is abutted against a bracket (46) that has a limit sliding on the side of the lower fixed groove (42). A lead screw (47) is movably provided on the support surface of the bracket (46). A worm gear (48) is provided on the lead screw (47). The gas collection mechanism (5) is set on the upper arc clamp (1) and connected to the detection end of the leak probe (3), and is used to collect the gas leaking from the pipeline to be detected and transport it to the detection end of the leak probe (3).

2. The SCADA system pipeline leak detection device according to claim 1, characterized in that, The gas collection mechanism (5) includes: The outer casing (51) is mounted on the upper arc clamp (1) and the leakage probe (3) is fixedly installed thereon. The gas collection unit (52) is slidably disposed on the opening on one side of the outer casing (51) for collecting and conveying leaked gas on the pipeline to be tested to the leak probe (3).

3. The SCADA system pipeline leak detection device according to claim 2, characterized in that: The gas collection unit (52) includes an air inlet chamber (521) disposed in the outer casing (51) and an opening (522) disposed on the air inlet chamber (521) and connected to the detection end of the leakage probe (3). A negative pressure suction fan (523) is disposed inside the air inlet chamber (521) and in front of the air inlet opening (522). A filter plate (524) is disposed at the air inlet end of the air inlet chamber (521) and opened on one side of the outer casing (51). Guide blocks (525) that slide on the inner wall of the outer casing (51) are disposed on both sides of the inner surface of the filter plate (524).

4. The SCADA system pipeline leak detection device according to claim 1, characterized in that: The worm gear (48) is engaged with a worm sleeve (49) sleeved on one side of the stud (44).

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