Online corrosion detection device for oil and gas pipeline

Abstract

The utility model discloses an on-line corrosion detection device for an oil and gas pipeline, and relates to the related technical field of oil and gas pipelines. The device comprises a lower sheath, an upper sheath, a lifting plate, a half-thread bolt and a fixing column, the upper sheath is arranged above the lower sheath, a movable opening is formed in the center of the outer surface of the upper sheath in a penetrating mode, the lifting plate is arranged above the movable opening, and a flexible sleeve is fixed to the center of the interior of the lifting plate in a penetrating mode; half-thread bolts are inserted in the lifting plate on the two sides of the flexible sleeve in a penetrating mode, and a fixing column is fixed in the lower protective sleeve in a penetrating mode. Through the arrangement of the lower sheath, the upper sheath, the lifting plate, the half-thread bolt and the fixed column, the problems that the detection position of the oil and gas pipeline online corrosion detection device is inconvenient to change, the ultrasonic sensor is easily abraded when the detection position is changed, and the durability of the ultrasonic sensor is influenced are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to oil and gas pipelines, and particularly relates to an online corrosion detection device for oil and gas pipelines. Background Art

[0002] The online corrosion detection device for oil and gas pipelines is a technical system used to monitor the corrosion status of oil and gas pipelines in real time. These devices can provide key information such as the corrosion rate, corrosion degree, and corrosion location of the pipeline, helping to timely discover corrosion problems and take corresponding maintenance measures to ensure the safe operation of the pipeline and extend its service life. However, it still has the following disadvantages in actual use:

[0003] During the operation of the oil and gas pipeline online corrosion detection device, ultrasonic sensors are directly used for detection. The ultrasonic sensors need to be installed on the oil and gas pipelines through brackets. When the detected position of the oil and gas pipeline is changed, the bracket needs to be disassembled, slid to a suitable position, and then reinstalled. During the installation process, the operation is not convenient enough;

[0004] When the oil and gas pipeline online corrosion detection device is used for detection, the ultrasonic sensor is directly pressed against the oil and gas pipeline. However, when the oil and gas pipeline detection position is changed, the probe position of the ultrasonic sensor will be rubbed, causing wear on the end of the probe, affecting the durability of the ultrasonic sensor. Utility Model Content

[0005] The purpose of the utility model is to provide an online corrosion detection device for oil and gas pipelines. By arranging a lower sleeve, an upper sleeve, a lifting plate, a half-thread bolt and a fixing column, the utility model solves the problem that it is not convenient to change the detection position of the online corrosion detection device for oil and gas pipelines, and that changing the detection position easily causes wear of the ultrasonic sensor, thereby affecting the durability of the ultrasonic sensor.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses an online corrosion detection device for oil and gas pipelines, comprising a lower sleeve, an upper sleeve, a lifting plate, a half-thread bolt and a fixing column. An upper sleeve is arranged above the lower sleeve, a movable opening is provided through the center of the outer surface of the upper sleeve, a lifting plate is arranged above the movable opening, a flexible sleeve is fixed through the center of the lifting plate, half-thread bolts are inserted through the lifting plates on both sides of the flexible sleeve, a fixing column is fixed through the lower sleeve, when working, the lower sleeve cooperates with the upper sleeve to be movably connected to the oil and gas pipeline, the lifting plate drives the flexible sleeve and the ultrasonic sensor to be lifted and lowered when the lifting plate is lifted and lowered, the lifting plate drives the lifting and lowering by rotating the half-thread bolt, and the clamping bolt is threadedly connected therein through the fixing column.

[0008] Furthermore, mounting plates are fixed at two edges of the outer surfaces of the lower and upper sleeves that are close to each other, and mounting holes are equidistantly opened in each mounting plate along the center line parallel to the top and the long side, and the lower and upper sleeves are installed by mounting bolts through the mounting plates.

[0009] Furthermore, the positions of the two mounting plates on the lower sleeve and the upper sleeve correspond to each other, and mounting bolts are commonly inserted into the corresponding upper and lower mounting holes, and the bottom ends of the mounting bolts are threadedly connected with fastening nuts. The mounting plates are inserted into the mounting plates through the mounting bolts, and then the fastening nuts are screwed onto the mounting bolts, so that the fastening nuts are tightened, so that the lower sleeve and the upper sleeve are fastened.

[0010] Furthermore, screw barrels are fixed on the outer surfaces of the upper sleeves on both sides of the movable opening, a fixed opening is opened through the center of the outer surface of the lower sleeve, and the movable opening is connected to the half-thread bolt through the screw barrel thread.

[0011] Furthermore, an ultrasonic sensor is fixed through the flexible sleeve, movable holes are opened through the lifting plates on both sides of the flexible sleeve, the half-thread bolts are inserted through the movable holes, and the flexible sleeve detects the thickness of the oil and gas pipeline through the ultrasonic sensor.

[0012] Furthermore, limiting rings are fixed around the semi-thread bolts at the top and bottom of the lifting plate, the semi-thread bolts below the limiting ring at the bottom of the lifting plate are threadedly connected in the screw barrel, and the lifting plate limits the position of the semi-thread bolts through the limiting ring.

[0013] Furthermore, a clamping bolt is threadedly connected in the fixing column, and a rubber clamping block is rotatably connected to the top of the clamping bolt. The fixing column drives the rubber clamping block to be pressed onto the oil and gas pipeline through the clamping bolt, so that the lower sleeve and the upper sleeve are pressed onto the oil and gas pipeline.

[0014] The utility model has the following beneficial effects:

[0015] The utility model solves the problem that it is not convenient to change the detection position of an online corrosion detection device for oil and gas pipelines by arranging a lower sleeve, an upper sleeve and a fixing column. After the lower sleeve and the upper sleeve are restricted together, the lower sleeve and the upper sleeve are rotated and pushed until the lower sleeve and the upper sleeve move to a suitable position, and then the clamping bolt is rotated. When the clamping bolt is rotated, the rubber clamping block is driven to rise until the detected pipeline is clamped, so that the lower sleeve and the upper sleeve are installed on the detected pipeline. When the detected position of the pipeline is changed, the clamping bolt is directly loosened to loosen the rubber clamping block and the oil and gas pipeline, so that the lower sleeve and the upper sleeve can be moved to detect the thickness of the corresponding position of the pipeline, making it more convenient for the online corrosion detection device for oil and gas pipelines to change the detection position.

[0016] The utility model solves the problem that the ultrasonic sensor is easily worn when the detection position of the online corrosion detection device for oil and gas pipelines is changed, thereby affecting the durability of the ultrasonic sensor, by arranging a lower sleeve, an upper sleeve, a lifting plate and a half-thread bolt. After the lower sleeve and the upper sleeve are installed on the oil and gas pipeline to be detected, the lower sleeve and the upper sleeve are immediately restricted and tightened, and then the half-thread bolt is rotated to drive the lifting plate to descend. When the lifting plate descends, the flexible sleeve and the ultrasonic sensor are driven to descend until the flexible sleeve and the ultrasonic sensor are pressed onto the surface of the oil and gas pipeline, so that the oil and gas pipeline can be detected, so that when the detection position is changed, the end of the ultrasonic sensor will not be worn, thereby increasing the durability of the ultrasonic sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are 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 creative work.

[0018] Figure 1 This is a stereogram of the assembly structure of an online corrosion detection device for oil and gas pipelines;

[0019] Figure 2 It is a three-dimensional diagram of the lower sheath structure;

[0020] Figure 3 It is a three-dimensional diagram of the upper sheath structure;

[0021] Figure 4 It is a three-dimensional diagram of the lifting plate structure;

[0022] Figure 5 This is a three-dimensional diagram of the half-thread bolt structure;

[0023] Figure 6 This is a three-dimensional diagram of the fixed column structure.

[0024] Reference numerals:

[0025] 1. Lower sleeve; 101. Fixed mouth; 102. Mounting bolt; 103. Fastening nut; 2. Upper sleeve; 201. Movable mouth; 202. Screw barrel; 203. Mounting plate; 204. Mounting hole; 3. Lifting plate; 301. Flexible sleeve; 302. Ultrasonic sensor; 303. Movable hole; 4. Half-thread bolt; 401. Limiting ring; 5. Fixed column; 501. Clamping bolt; 502. Rubber clamping block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0027] See also Figure 1-6 The utility model is an online corrosion detection device for oil and gas pipelines, comprising a lower sleeve 1, an upper sleeve 2, a lifting plate 3, a half-thread bolt 4 and a fixing column 5. An upper sleeve 2 is arranged above the lower sleeve 1. The lower sleeve 1 cooperates with the upper sleeve 2 so that the lifting plate 3 is movably connected to the oil and gas pipeline to be detected. A movable opening 201 is provided through the center of the outer surface of the upper sleeve 2. The upper sleeve 2 is movably connected to a flexible sleeve 301 through the movable opening 201. A lifting plate 3 is arranged above the movable opening 201. The lifting and lowering of the lifting plate 3 drives the lifting and lowering of the flexible sleeve 301. A flexible sleeve 301 is fixed through the center of the lifting plate 3. An ultrasonic sensor 302 is fixed therein through the flexible sleeve 301. Half-thread bolts 4 are inserted through the lifting plates 3 on both sides of the flexible sleeve 301. When the half-thread bolts 4 rotate, the position of the flexible sleeve 301 on the upper sleeve 2 is controlled. A fixing column 5 is fixed through the lower sleeve 1, and a clamping bolt 501 is threadedly connected therein through the fixing column 5.

[0028] Specifically, mounting plates 203 are fixed at two edges of the outer surfaces of the lower sleeve 1 and the upper sleeve 2 that are close to each other. Each mounting plate 203 has mounting holes 204 equidistantly extending through the center line of the top parallel to the long side. The lower sleeve 1 and the upper sleeve 2 are movably connected to the mounting bolts 102 through the mounting holes 204 on the mounting plates 203.

[0029] Furthermore, the positions of the two mounting plates 203 on the lower sleeve 1 and the upper sleeve 2 correspond to each other, and the mounting bolts 102 are commonly inserted into the corresponding upper and lower mounting holes 204. The bottom ends of the mounting bolts 102 are threadedly connected with fastening nuts 103. The mounting bolts 102 are inserted through the mounting holes 204 corresponding to the positions on the two mounting plates 203, and then the fastening nuts 103 are screwed onto them at the bottom. After tightening, the lower sleeve 1 and the upper sleeve 2 are restrained together.

[0030] Furthermore, screw barrels 202 are fixed on the outer surfaces of the upper sleeve 2 on both sides of the movable opening 201 , and a fixing opening 101 is opened through the center of the outer surface of the lower sleeve 1 , and the upper sleeve 2 is threadedly connected to the half-thread bolt 4 through the screw barrel 202 .

[0031] Furthermore, an ultrasonic sensor 302 is fixed through the flexible sleeve 301, and movable holes 303 are opened through the lifting plates 3 on both sides of the flexible sleeve 301. The half-thread bolts 4 are inserted through the movable holes. After the flexible sleeve 301 is pressed down and contacts the pipeline surface through the ultrasonic sensor 302, pipeline corrosion detection is performed, and the lifting plates 3 are movably connected to the half-thread bolts 4 through the movable holes 303.

[0032] Furthermore, limiting rings 401 are fixed around the semi-thread bolts 4 at the top and bottom of the lifting plate 3, and the semi-thread bolts 4 below the limiting ring 401 at the bottom of the lifting plate 3 are threadedly connected in the screw barrel 202, and the lifting plate 3 limits the position of the semi-thread bolts 4 on it through the limiting ring 401.

[0033] The operation process of this embodiment is as follows: when working, after the lower sleeve 1 and the upper sleeve 2 are installed on the oil and gas pipeline that needs to be inspected, the lower sleeve 1 and the upper sleeve 2 are immediately restricted and tightened, and then the half-thread bolt 4 is rotated to drive the lifting plate 3 to descend. When the lifting plate 3 descends, the flexible sleeve 301 and the ultrasonic sensor 302 are driven to descend until the flexible sleeve 301 and the ultrasonic sensor 302 are pressed onto the surface of the oil and gas pipeline, and the oil and gas pipeline is inspected. When changing the inspection position, the half-thread bolt 4 is directly rotated to drive the lifting plate 3 to rise. When the lifting plate 3 rises, the flexible sleeve 301 and the ultrasonic sensor 302 are driven to rise, so as to prevent the upper sleeve 2 and the lower sleeve 1 from causing damage to the ultrasonic sensor 302 during operation. Specific embodiment 2

[0034] See also Figure 1 , 2 , 3, 6, on the basis of the specific embodiment 1, a clamping bolt 501 is threadedly connected in the fixing column 5, and a rubber clamping block 502 is rotatably connected to the top of the clamping bolt 501. After the lower sleeve 1 and the upper sleeve 2 are arranged on the peripheral side of the oil and gas pipeline to be inspected, the clamping bolt 501 is rotated to drive the clamping bolt 501 to rotate. When the clamping bolt 501 rotates, the rubber clamping block 502 is driven to rise until the inspected pipeline is compressed, so that the lower sleeve 1 and the upper sleeve 2 are installed on the inspected pipeline.

[0035] The operation process of this embodiment is as follows: when working, first, the lower sleeve 1 and the upper sleeve 2 are put together on the side of the pipeline to be inspected, and then the mounting bolts 102 are inserted through the mounting holes 204 corresponding to the positions on the two mounting plates 203, and then the fastening nuts 103 are screwed onto them at the bottom, and after tightening, the lower sleeve 1 and the upper sleeve 2 are restricted together. After completion, the lower sleeve 1 and the upper sleeve 2 are rotated and pushed until the lower sleeve 1 and the upper sleeve 2 move to the appropriate position, and then the clamping bolt 501 is rotated. When the clamping bolt 501 rotates, the rubber clamping block 502 is driven to rise until the inspected pipeline is clamped, so that the lower sleeve 1 and the upper sleeve 2 are installed on the inspected pipeline. When the inspected position of the pipeline is changed, the clamping bolt 501 is directly loosened to loosen the rubber clamping block 502 and the oil and gas pipeline, and then the lower sleeve 1 and the upper sleeve 2 can be moved to detect the thickness of the corresponding position of the pipeline.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An online corrosion detection device for oil and gas pipelines, comprising a lower jacket (1), an upper jacket (2), a lifting plate (3), a half-thread bolt (4) and a fixing column (5), characterized in that: An upper sleeve (2) is arranged above the lower sleeve (1), a movable opening (201) is provided through the center of the outer surface of the upper sleeve (2), a lifting plate (3) is arranged above the movable opening (201), a flexible sleeve (301) is fixed through the center of the lifting plate (3), half-thread bolts (4) are inserted through the lifting plate (3) on both sides of the flexible sleeve (301), and a fixing column (5) is fixed through the lower sleeve (1).

2. The oil and gas pipeline online corrosion detection device according to claim 1 is characterized by: Mounting plates (203) are fixed at two edges of the outer surfaces of the lower protective sleeve (1) and the upper protective sleeve (2) that are close to each other, and mounting holes (204) are equidistantly provided in each mounting plate (203) along a center line parallel to the top and the long side.

3. The oil and gas pipeline online corrosion detection device according to claim 2 is characterized by: The two mounting plates (203) on the lower sleeve (1) and the upper sleeve (2) are located in corresponding positions with each other, and mounting bolts (102) are inserted into the corresponding mounting holes (204) at the top and bottom, and the bottom ends of the mounting bolts (102) are threadedly connected with fastening nuts (103).

4. The oil and gas pipeline online corrosion detection device according to claim 1 is characterized by: Screw barrels (202) are fixed on the outer surfaces of the upper sleeves (2) on both sides of the movable opening (201), and a fixed opening (101) is provided through the center of the outer surface of the lower sleeve (1).

5. The oil and gas pipeline online corrosion detection device according to claim 4 is characterized in that: An ultrasonic sensor (302) is fixedly inserted into the flexible sleeve (301), and movable holes (303) are provided in the lifting plates (3) on both sides of the flexible sleeve (301), and the half-thread bolts (4) are inserted into the movable holes.

6. The oil and gas pipeline online corrosion detection device according to claim 5 is characterized by: Limiting rings (401) are fixed around the semi-threaded bolts (4) at the top and bottom of the lifting plate (3), and the semi-threaded bolts (4) below the limiting ring (401) at the bottom of the lifting plate (3) are threadedly connected in the screw barrel (202).

7. The oil and gas pipeline online corrosion detection device according to claim 1 is characterized by: A clamping bolt (501) is threadedly connected inside the fixing column (5), and a rubber clamping block (502) is rotatably connected to the top end of the clamping bolt (501).

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