Oil pipeline air tightness detection device

Abstract

The utility model relates to oil pipeline detection equipment technical field especially relates to oil pipeline air tightness detection device, including work bench, base, oil pipeline, handle, air cylinder and air tightness detection mouth, the base sets up in the middle position of work bench, is set up with a plurality of internal thread assembly hole on the base, and the oil pipeline passes through bolt and assembly hole fixed connection, and the oil pipeline includes two pipelines of one thick one thin, and the left end of pipeline is closed through the sealing device of handle drive, and the right end realizes the sealing by the plug of air cylinder drive, and the air tightness detection mouth is used for to the oil pipeline inside apply air pressure, judges whether existence leakage through the flow sensor in the pipeline, and the device simple structure, convenient operation, sealing effect is reliable, can realize the quick fixing and efficient detection of different specifications oil pipeline, improves the accuracy and work efficiency of air tightness detection.

Description

Technical Field

[0001] This utility model relates to the technical field of oil pipeline testing equipment, and in particular to an oil pipeline airtightness testing device. Background Technology

[0002] With the increasing automation of industrial equipment, oil transportation systems are widely used in petroleum, chemical, and machinery manufacturing industries. As a crucial channel for transporting media, the sealing performance of oil pipelines directly affects the safety and stability of the system. Leaks in oil pipelines can not only lead to oil waste but also potentially cause serious safety accidents such as equipment damage, environmental pollution, and even fires. Therefore, conducting reliable airtightness testing before putting oil pipelines into operation is a necessary step to ensure product quality and safe use.

[0003] Currently, the airtightness testing of oil pipelines often employs methods such as manual sealing followed by pressure observation or the bubbling test in water. However, the former's sealing effect is greatly affected by human operation, resulting in poor stability and repeatability; while the latter, although it can visually identify leaks, suffers from low detection efficiency, requires the use of a liquid medium, and is inconvenient for on-site operation. Furthermore, some existing devices have complex structures, making it difficult to quickly clamp the pipe fittings under inspection, leading to low detection efficiency and incompatibility with different specifications of oil pipelines, thus limiting their application scope.

[0004] Therefore, there is an urgent need for an airtightness testing device that is simple in structure, easy to operate, reliable in sealing, highly sensitive in detection, and capable of rapid installation and sealing of oil pipelines of various specifications, so as to improve detection efficiency and accuracy and meet the needs of on-site operations. Utility Model Content

[0005] The purpose of this invention is to provide an oil pipeline airtightness testing device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an oil pipeline air tightness testing device, including a workbench, a base, an oil pipeline, a handle, a cylinder and an air tightness testing port, wherein the base is located in the middle of the workbench and has multiple internal threaded assembly holes, and the oil pipeline is fixedly connected to the internal threaded assembly holes by bolts.

[0007] The oil pipeline includes two pipes, one thick and one thin, with a rotatable handle at the left end of each pipe for driving a sealing device to block the left end of the oil pipeline.

[0008] The two pipes are equipped with cylinders at their right ends. The cylinders push the plugs to fit against the inner wall of the pipes, thus sealing the right ends.

[0009] The airtightness testing port is used to apply air pressure to the inside of the sealed oil pipeline to test the pipeline's airtightness.

[0010] According to the above technical solution, the base is fixedly connected to the workbench.

[0011] According to the above technical solution, the handle is connected to the sealing device through a rotating mechanism. When the handle is rotated, the sealing element moves axially to block the left end of the pipe.

[0012] According to the above technical solution, the cylinder is a one-way push rod type cylinder, and the cylinder output end is provided with an elastic plug. The outer wall of the plug has a conical structure to enhance the sealing effect.

[0013] According to the above technical solution, the airtightness detection port is connected to the air source, and the oil pipeline is equipped with a flow sensor to detect airtightness leakage.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model, by setting up a workbench, base, handle, cylinder, and airtightness detection port, constitutes a compact and easy-to-operate oil pipeline airtightness detection system. Different specifications of oil pipelines are fixed by bolts through the internal threaded mounting holes on the base, enhancing adaptability and installation stability. The handle drives the sealing device to quickly close the left end, and the cylinder pushes the plug to automatically seal the right end, resulting in high sealing efficiency and good repeatability. The airtightness detection port, combined with a flow sensor, can directly reflect the pipeline leakage situation, with high detection accuracy and short response time. The overall device is convenient for on-site operation and batch testing, effectively improving the efficiency and reliability of airtightness testing, and is suitable for testing various specifications of oil pipelines. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of the oil pipeline airtightness testing device proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the base and its connecting parts in the oil pipeline airtightness testing device proposed in this utility model.

[0018] In the diagram: 1. Workbench, 2. Base, 3. Oil pipe, 4. Handle, 5. Cylinder, 6. Air tightness test port. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example:

[0021] Reference Figure 1-2 The oil pipeline air tightness testing device includes a workbench 1, a base 2, an oil pipeline 3, a handle 4, a cylinder 5, and an air tightness testing port 6. The workbench 1 is located at the bottom of the device and is used to support the various components. The base 2 is fixedly installed in the middle of its upper surface. The base 2 has multiple evenly distributed internal thread assembly holes with hole diameters matching the standard bolt specifications. The oil pipeline 3 is fixed to the base 2 by bolts to achieve a firm positioning.

[0022] The oil pipeline 3 includes a thicker pipe with a larger diameter and a thinner pipe with a smaller diameter. The two pipes are arranged in parallel and are fixed by bolt holes on the base 2. Each oil pipeline 3 has a sealing device at its left end. The sealing device is fixedly connected to the base 2. The device is equipped with a rotatable handle 4. The handle 4 is connected to the sealing element through a rotating mechanism. Operating the handle 4 can drive the sealing element to move forward or backward in the horizontal direction. When the handle 4 is rotated to the locking direction, the sealing element is pushed into the opening at the left end of the oil pipeline 3 to achieve a seal at the left end.

[0023] The right ends of the two oil pipes 3 are sealed by a cylinder 5. The cylinder 5 is fixed on the base 2 and is a one-way push rod type cylinder. A flexible plug is installed at the front end of its piston rod. The size of the plug is closely matched with the inner diameter of the oil pipe 3 and has a conical structure. When working, the cylinder 5 is activated to drive the piston rod to extend horizontally. The plug is inserted into the right end of the oil pipe 3 to achieve the sealing of the right end. When the cylinder 5 is fully extended, the left and right ends are sealed to form a closed cavity.

[0024] An airtightness detection port 6 is provided at the upper end of the sealing position on the left side of the oil pipe 3, near the handle 4. The airtightness detection port 6 is connected to the air source and the internal pressure sensing system through a pipe. After the set air pressure is applied, if there is a slight leak in the oil pipe 3, the internal flow sensor will detect the change in gas flow and generate a numerical output. By comparing the value of the flow sensor, it can be determined whether there is an air leak in the oil pipe 3. If the flow sensor maintains zero flow or fluctuates within the set tolerance range, it indicates that the airtightness of the oil pipe 3 is qualified; if the sensor continuously outputs a significant flow value, it means that there is a leak in the oil pipe 3.

[0025] The overall workflow of this device is as follows: First, the oil pipe 3 to be tested is fixed to the base 2 with bolts. After adjusting the left and right alignment, the handle 4 is turned to seal the left end. Then, the cylinder 5 is started to push the right end plug into the oil pipe 3 to complete the seal. Next, air pressure is applied through the air tightness detection port 6, and the flow sensor reads the internal data to complete the test. After the test is completed, the air source is turned off, the piston rod of the cylinder 5 is retracted, the handle 4 is released, and the oil pipe 3 is removed.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An oil pipeline airtightness testing device, comprising a workbench (1), a base (2), an oil pipeline (3), a handle (4), a cylinder (5), and an airtightness testing port (6), characterized in that: The base (2) is located in the middle of the workbench (1). The base (2) is provided with multiple internal thread assembly holes. The oil pipe (3) is fixedly connected to the internal thread assembly holes by bolts. The oil pipeline (3) includes two pipes, one thick and one thin, with a rotatable handle (4) at the left end of each pipe for driving a sealing device to block the left end of the oil pipeline (3). The two pipes are equipped with cylinders (5) at their right ends. The cylinders (5) push the plugs to fit against the inner wall of the pipes to achieve a seal at the right end. The air tightness test port (6) is used to apply air pressure to the inside of the sealed oil pipeline (3) to test the air tightness of the pipeline.

2. The oil pipeline gas tightness detection device according to claim 1, characterized in that: The base (2) is fixedly connected to the workbench (1).

3. The apparatus for detecting gas tightness of a fuel transfer pipe according to claim 1, characterized by: The handle (4) is connected to the sealing device through a rotating mechanism. When the handle is rotated, the sealing element moves axially to block the left end of the pipe.

4. The apparatus of claim 1, wherein: The cylinder (5) is a one-way push rod type cylinder, and the cylinder output end is provided with an elastic plug. The outer wall of the plug is a conical structure to enhance the sealing effect.

5. The apparatus of claim 1, wherein: The airtightness detection port (6) is connected to the air source, and the oil pipeline (3) is equipped with a flow sensor to detect airtightness leakage.

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