A pipeline safety detection device

Abstract

The utility model provides a kind of pipeline safety detection equipment, including gas transmission component, sensing component and limit frame, the sensing component is installed on the limit frame, and with the coaxial arrangement of limit frame;The sensing component includes detection ring and several detection units, the detection unit is equidistantly arranged along the circumferential direction of detection ring, and the detection unit is slidably connected with the detection ring;Driving device is installed on the limit frame, and the driving device is used to drive detection unit synchronous movement;Driving block is installed on the driving device, and the driving block is provided with the guide inclined plane for cooperating with the detection unit;The utility model can solve the problem of prior art in the adoption of water immersion detection needs pipeline production stop, for the pipeline with existing micro crack, and water immersion detection can lead to crack rapid expansion, cause early failure.

Description

Technical Field

[0001] This utility model relates to the field of pipeline safety inspection, specifically to a pipeline safety inspection device. Background Technology

[0002] In pipeline transportation systems, pipe connections (such as flanges and welded joints) are high-risk areas for leaks. Traditional detection methods mainly rely on periodic manual inspections or external sensor monitoring, which makes it difficult to achieve real-time defect detection.

[0003] Existing pressure pipeline inspection equipment is generally large and expensive, and lacks intuitiveness during inspection, failing to meet usage requirements. To address the problems in existing technology, utility model CN207423456U discloses a pressure pipeline weld inspection device, including an upper sleeve. The upper sleeve is semi-circular, made of steel, and has side upper connecting plates on its left and right sides. A mounting groove is formed in the center of the upper surface of the side upper connecting plates. A first fastening screw is inserted into the mounting groove. The first fastening screw is screwed into a fastening threaded hole and connected to a side lower connecting plate. A front lower connecting plate is formed on both the front and rear sides of the lower sleeve. A front upper connecting plate is formed above the front lower connecting plate. A glass plate is formed above the pressure pipeline. A cover plate is formed above the glass plate. A switch block is fixed to the upper end of the cover plate. A tight plug is threadedly connected to a water inlet. A first drain outlet is formed in the center of the lower sleeve. A conversion plate is movably connected within a movable cavity, and a second drain outlet is formed on its right side.

[0004] Existing technology 1 uses the principle of airflow generating bubbles in water, and with the help of a glass plate, it can be directly observed whether there is a leak at the weld of the pipe. However, immersion testing requires the pipeline to be shut down and transport stopped. For pipes with existing microcracks, immersion testing may cause the cracks to expand rapidly and cause premature failure. The water remaining in the pipe may also cause internal wall corrosion. If the drainage is not thorough, the residual water will accelerate electrochemical corrosion and shorten the life of the pipe. Utility Model Content

[0005] The purpose of this utility model is to provide a pipeline safety inspection device that can solve the problems in the existing technology where immersion inspection requires pipeline shutdown and transportation stoppage, and for pipelines with existing microcracks, immersion inspection may cause the cracks to expand rapidly and lead to premature failure.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A pipeline safety inspection device includes a gas transmission component, a sensing component, and a limiting frame, wherein the sensing component is mounted on the limiting frame and is coaxially arranged with the limiting frame;

[0008] The sensing component includes a detection ring and a plurality of detection units. The detection units are equally spaced along the circumference of the detection ring and are slidably connected to the detection ring. A driving device is installed on the limiting frame, and the driving device is used to drive the detection units to move synchronously.

[0009] The driving device is equipped with a driving block, and the driving block is provided with a guide slope for cooperating with the detection unit.

[0010] Preferably, the gas delivery assembly includes a gas delivery ring and a sealing element, the sealing element being coaxially arranged with and connected to the gas delivery ring, and an air inlet pipe being connected to the gas delivery ring.

[0011] Preferably, a magnetic element is connected to the end of the seal that is away from the gas supply ring.

[0012] Preferably, the detection unit includes a moving part, a sensor, and a detection airbag. The moving part is provided with a mounting groove, and the sensor and the detection airbag are both installed in the mounting groove. The moving part is arranged at equal intervals along the circumference of the detection ring.

[0013] Preferably, a buffer is installed at the end of the moving part away from the driving device.

[0014] Preferably, the movable part is rotatably mounted with a roller on the side that contacts the guide ramp.

[0015] Preferably, the detection ring is provided with a groove, and a moving mechanism is slidably installed in the groove. Preferably, the moving mechanism includes a moving rod, a ball, and a spring. The moving rod is slidably installed in the groove, and the moving rod and the groove are connected by the spring. The end of the moving rod away from the groove is provided with a ball groove, and the ball is in rolling contact with the ball groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In this utility model, the driving device can drive the driving block to move. After the guide slope provided on the driving block contacts the detection unit slidably mounted on the detection ring, the detection unit can move under the guidance of the guide slope to contact the inner wall of the pipe, so that a detection area is formed between each detection unit and the gas transmission assembly.

[0018] When gas is introduced into the gas delivery assembly, if a defect exists at the pipeline connection and causes the gas to leak into the detection area through the defect, the detection unit set corresponding to the leak point can transmit the location information of the leak point to a remote control center. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the usage state of this utility model.

[0021] Figure 2 This is a perspective view of the gas delivery component in this utility model.

[0022] Figure 3 This is a perspective view of the sensing component in this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 101-Gas delivery assembly, 102-Sensing assembly, 103-Limiting frame, 104-Detection ring, 105-Detection unit, 106-Drive device, 107-Drive block, 108-Guide slope, 109-Gas delivery ring, 110-Seal, 111-Magnetic component, 112-Moving part, 113-Pipe, 114-Detection airbag, 115-Buffer component, 116-Roller, 117-Ball bearing. Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0026] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0029] In this embodiment of the invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0031] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] See Figures 1-3 This embodiment discloses a pipeline safety detection device, including a gas transmission component 101, a sensing component 102 and a limiting frame 103. The sensing component 102 is installed on the limiting frame 103 and is coaxially arranged with the limiting frame 103.

[0033] The sensing component 102 includes a detection ring 104 and a plurality of detection units 105. The detection units 105 are equally spaced along the circumference of the detection ring 104 and are slidably connected to the detection ring 104. A driving device 106 is installed on the limiting frame 103. The driving device 106 is used to drive the detection units 105 to move synchronously.

[0034] A drive block 107 is mounted on the drive device 106, and a guide slope 108 is provided on the drive block 107 for cooperating with the detection unit 105.

[0035] In this embodiment, when it is necessary to inspect the connection of the pipe 113, such as a flange or welded joint, the gas delivery assembly 101 is first fitted over the pipe 113, so that the connection of the pipe 113 is located inside the gas delivery assembly 101; then the limiting frame 103 is placed inside the pipe 113, and the detection ring 104 installed on the limiting frame 103 moves with the limiting frame 103 to the position corresponding to the gas delivery assembly 101, so that the connection of the pipe 113 is located between the detection ring 104 and the gas delivery assembly 101; the driving device 106 can drive the driving block 107 to move, and after the guide slope 108 provided on the driving block 107 contacts the detection unit 105 slidably installed on the detection ring 104, the detection unit 105 can move under the guidance of the guide slope 108 to contact the inner wall of the pipe 113, so that a detection area is formed between each detection unit 105 and the gas delivery assembly 101; the gas delivery assembly 101 The gas supply unit 101 is connected to a conventional gas source device. This gas source device is used to input gas into the gas delivery assembly 101. If there is a defect at the connection of the pipe 113, causing gas to leak into the detection area through the defect, the detection unit 105, which is set corresponding to the leak point, can transmit the location information of the leak point to a remote control center. In this embodiment, the control center is a conventional device used in the prior art to receive signals and display information. Its structure and function will not be described in detail here. Since the detection units 105 are evenly spaced along the circumference of the detection ring 104, in order to avoid missed detections, after the detection unit 105 completes the detection at the initial position, rotating the limiting frame 103 can move the detection unit 105 to the undetected area for detection. The rotation angle of the limiting frame 103 is the same as the included angle formed between the axes of the adjacent detection units 105, ensuring that the detection unit 105 can perform a comprehensive detection of the connection of the pipe 113.

[0036] In some embodiments, the gas delivery assembly 101 includes a gas delivery ring 109 and a sealing element 110. The sealing element 110 is coaxially disposed with and connected to the gas delivery ring 109, and an air inlet pipe is connected to the gas delivery ring 109. In this embodiment, the air inlet pipe is used to connect to the gas source device, and the gas source device inputs gas into the gas delivery assembly 101 through the air inlet pipe. The sealing element 110 is made of rubber material and can seal the gap between the gas delivery ring 109 and the pipe 113, preventing gas leakage through the gap between the gas delivery ring 109 and the pipe 113.

[0037] In some embodiments, a magnetic element 111 is connected to one end of the sealing element 110 away from the gas supply ring 109. In this embodiment, the magnetic element 111 is used to adhere to the pipe 113, further fixing the gas supply ring 109; through the synergistic effect of the flexible deformation of the sealing element 110 and the fixing effect of the magnetic element 111, the gap between the gas supply ring 109 and the pipe 113 can be further sealed, and the stability of the gas supply ring 109 after installation can be improved.

[0038] In some embodiments, the detection unit 105 includes a moving part 112, a sensor, and a detection airbag 114. The moving part 112 is provided with a mounting groove, and the sensor and the detection airbag 114 are both installed in the mounting groove. The moving part 112 is arranged at equal intervals along the circumferential direction of the detection ring 104. In this embodiment, after the moving part 112 moves to contact the inner wall of the pipe 113, if a leak occurs at the connection point of the pipe 113 corresponding to the detection part, the gas pressure at the leak point will cause the airbag to change. The sensor is used to detect the change in the airbag 114 and send the detected data to the control center for display. The vertical analysis determines whether there is a leak or defect in the pipe 113. The physical position between the detection airbag 114 and the sensor installed in the mounting groove is relatively fixed, thereby improving the stability of signal transmission. By setting the guide slope 108, the radial displacement of the moving part 112 can be precisely controlled to move closer to or away from the inner wall of the pipe 113, ensuring that the detection moving part 112 can maintain appropriate contact pressure with the inner wall in pipes 113 of different diameters, avoiding detection blind spots due to poor contact.

[0039] In some embodiments, a buffer 115 is installed at the end of the moving part 112 away from the driving device 106. In this embodiment, the buffer 115 is arc-shaped and made of rubber material. When the driving device 106 drives the moving part 112 to move radially, the buffer 115 can absorb the energy generated by the impact, preventing the moving part 112 from colliding with the inner wall of the pipe 113 and protecting the equipment body and the pipe 113. Furthermore, after the buffer 115 contacts the inner wall of the pipe 113, it can seal the gap between the buffer 115 and the pipe 113, preventing gas entering the detection area from escaping from the gap between the moving part 112 and the inner wall of the pipe 113, thus affecting the accuracy of the detection results.

[0040] In some embodiments, a roller 116 is rotatably mounted on the side of the movable part 112 that contacts the guide ramp 108. In this embodiment, the roller 116 is rotatably connected to the movable part 112 via a bearing. When the drive device 106 pushes the movable part 112 to move radially along the detection ring 104 via the guide ramp 108, the rotation of the roller 116 can convert sliding friction into rolling friction, reducing wear at the contact point between the guide ramp 108 and the movable part 112, and ensuring smooth movement of the movable part 112.

[0041] In some embodiments, the buffer 115 is provided with a groove, and a moving mechanism is slidably installed in the groove. In this embodiment, after the detection unit 105 completes the detection at the initial position, it needs to rotate the limiting frame 103 to move the detection unit 105 to an undetected area for detection; the detection ring 104 is rotatably connected to the inner wall of the pipe 113 through the moving mechanism. The rotation of the moving mechanism can convert sliding friction into rolling friction, reduce the wear of the contact area between the inner wall of the pipe 113 and the moving part 112, and ensure the smooth movement of the moving part 112.

[0042] In some embodiments, the moving mechanism includes a moving rod, a ball bearing 117, and a spring. The moving rod is slidably mounted in a groove, and the moving rod and the groove are connected by the spring. A ball groove is provided at the end of the moving rod away from the groove, and the ball bearing 117 is in rolling contact with the ball groove. When the limiting frame 103 drives the detection ring 104 and the moving part 112 to rotate, the ball bearing 117 contacts the inner wall of the pipe 113, converting the sliding friction between the inner wall of the pipe 113 and the detection ring 104 into rolling friction, reducing the wear at the contact point between the inner wall of the pipe 113 and the detection ring 104. Under the force provided by the spring, the moving rod and the ball bearing 117 can be pressed tightly against the inner wall of the pipe 113, ensuring the stability of the detection ring 104 during rotation.

[0043] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pipeline safety inspection device, characterized in that: It includes a gas delivery assembly (101), a sensing assembly (102), and a limiting frame (103). The sensing assembly (102) is mounted on the limiting frame (103) and is coaxially arranged with the limiting frame (103). The sensing component (102) includes a detection ring (104) and a plurality of detection units (105). The detection units (105) are equally spaced along the circumference of the detection ring (104) and are slidably connected to the detection ring (104). A driving device (106) is installed on the limiting frame (103), and the driving device (106) is used to drive the detection units (105) to move synchronously. A drive block (107) is mounted on the drive device (106), and the drive block (107) is provided with a guide slope (108) for cooperating with the detection unit (105).

2. The pipeline safety inspection equipment according to claim 1, characterized in that: The gas delivery assembly (101) includes a gas delivery ring (109) and a sealing element (110). The sealing element (110) is coaxially arranged with the gas delivery ring (109) and connected to the gas delivery ring (109). An air inlet pipe is connected to the gas delivery ring (109).

3. The pipeline safety inspection equipment according to claim 2, characterized in that: A magnetic element (111) is connected to the end of the sealing element (110) away from the gas supply ring (109).

4. The pipeline safety inspection equipment according to claim 1, characterized in that: The detection unit (105) includes a moving part (112), a sensor and a detection airbag (114). The moving part (112) is provided with a mounting groove, and the sensor and the detection airbag are both installed in the mounting groove. The moving part (112) is arranged at equal intervals along the circumference of the detection ring (104).

5. A pipeline safety inspection device according to claim 4, characterized in that: A buffer (115) is installed at the end of the moving part (112) away from the drive device (106).

6. A pipeline safety inspection device according to claim 5, characterized in that: The movable part (112) is rotatably mounted with a roller (116) on the side that contacts the guide slope (108).

7. A pipeline safety inspection device according to claim 5, characterized in that: The detection ring (104) is provided with a sliding groove, and a moving mechanism is slidably installed in the sliding groove.

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