Pressure pipeline pressure bearing detection device

Abstract

The utility model belongs to the technical field of pipeline detection, and particularly relates to a pressure pipeline pressure bearing detection device, which comprises a fixed sealing assembly and a movable sealing assembly, the fixed sealing assembly and the movable sealing assembly are oppositely arranged and respectively comprise a bottom plate, and a V-shaped carrier roller and a fixed frame are arranged on each bottom plate. A lifting oil cylinder installed on the fixed frame is connected with a sliding frame in a supporting mode, the sliding frame is arranged on the fixed frame in a sliding and sleeving mode, a multi-specification sealing plate and a jacking oil cylinder are installed on the sliding frame in the fixed sealing assembly and the sliding frame in the movable sealing assembly respectively, the multi-specification sealing plate is installed on the jacking oil cylinder, and the multi-specification sealing plate comprises a bottom plate. A plurality of round pipes with diameter specifications are coaxially welded on the bottom plate, conical sealing gaskets are arranged on the outer sides of the round pipes, and the bottom plate is connected with a water outlet of a pressure pump through a water injection pipe. Conical sealing gaskets supported by a plurality of circular pipes arranged in the multi-specification sealing plate can quickly, conveniently and effectively seal pipelines with different diameters and thickness specifications, so that the efficiency and the safety of pressure detection are effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline detection, and in particular relates to a pressure pipeline pressure detection device. Background Art

[0002] Pressure pipelines are tubular equipment that use a certain pressure to transport gas or liquid. The range is specified as a maximum working pressure greater than or equal to 0.1MPa (gauge pressure), the medium is gas, liquefied gas, steam, or flammable, explosive, toxic, corrosive liquids with a maximum working temperature higher than or equal to the standard boiling point, and the nominal diameter is greater than or equal to 50mm.

[0003] It is very necessary to conduct pressure tests on pressure pipelines to verify the strength of the pipelines and judge whether the pipelines can withstand the operating pressure. At present, water pressure test is one of the main means of pipeline strength detection. Due to the variety of specifications of pipelines, the standard length of steel pipes leaving the factory is generally 6 meters, 9 meters, and 12 meters. The 6-meter steel pipe is more commonly used in pressure pipeline systems with complex pipelines; however, compared with the relatively fixed length specifications, the diameter and thickness specifications of the pipelines are often more classified. When the pressure bearing detection device in the prior art conducts a water pressure test on the pipeline, it is necessary to ensure the sealing of both ends of the pipeline. When a large-diameter flat plate is directly used to seal both ends of the pipeline, due to the small thickness of the pipeline and the slope often provided at the port, the contact area with the flat-plate gasket is small and the sealing effect is poor.

[0004] In the prior art, there is a lack of a pressure detection device that can quickly and effectively seal pipes of different diameters and thicknesses. Summary of the invention

[0005] In view of the above problems, the purpose of the utility model is to provide a pressure pipeline pressure detection device to solve the problem that the existing pressure pipeline pressure detection device cannot quickly and effectively seal pipelines of different diameters and thickness specifications.

[0006] To achieve the above objectives, the utility model adopts the following technical solution: a pressure pipeline pressure detection device, comprising a fixed sealing component and a movable sealing component, the fixed sealing component and the movable sealing component are relatively arranged and both include a bottom plate, a V-shaped roller and a fixed frame are installed on the bottom plate, the V-shaped roller rolling support has a pipeline, a lifting cylinder is installed on the fixed frame, the lifting cylinder support is connected with a sliding frame, the sliding frame is slidably sleeved on the fixed frame, multi-specification sealing plates and tightening cylinders are respectively installed on the sliding frames in the fixed sealing component and the movable sealing component, multi-specification sealing plates are installed on one end of the tightening cylinder, the multi-specification sealing plates include a bottom plate, circular tubes of multiple diameters are coaxially welded on the bottom plate, a conical sealing pad is arranged on the outer side of the circular tube, a water injection pipe is connected to the axis of the bottom plate, and the water injection pipe is connected to the water outlet of the pressure pump.

[0007] The beneficial effect of the utility model is that the conical sealing gasket supported by the multiple round tubes arranged in the multi-specification sealing plate can quickly and conveniently and effectively seal pipes of different diameters and thicknesses, thereby effectively improving the efficiency and safety of pressure detection.

[0008] In order to effectively keep the axis of the multi-specification sealing plate in line with the axis of the pipe supported by the V-shaped roller;

[0009] As a further improvement of the above technical solution: the two rollers in the V-shaped rollers are symmetrically arranged with the axis of the sealing plate of multiple specifications as the symmetry axis.

[0010] The beneficial effect of this improvement is that the axis of the pipeline supported by the V-shaped roller is in the same vertical plane as the axis of the multi-specification sealing plate. Therefore, the multi-specification sealing plate can be kept in line with the axis of the pipeline by vertically adjusting the height of the multi-specification sealing plate through the lifting cylinder.

[0011] In order to stably drive the sliding frame up and down through the lifting cylinder;

[0012] As a further improvement of the above technical solution: the cylinder body of the lifting cylinder is installed on the fixed frame, and the piston rod of the lifting cylinder is connected to the sliding frame.

[0013] The beneficial effect of this improvement is that the lifting cylinder can drive the sliding frame to move up and down stably outside the fixed frame.

[0014] In order to stably drive the multi-specification sealing plates to press the ends of the pipes through the tightening cylinder;

[0015] As a further improvement of the above technical solution: the axis of the tightening cylinder is parallel to the axis of the sealing plates of various specifications.

[0016] The beneficial effect of this improvement is that when the tightening oil cylinder moves, the sealing plates of various specifications are evenly pressed against the end of the pipeline, thereby achieving effective sealing of the pipeline.

[0017] In order to effectively seal pipes of different thickness specifications by using conical gaskets;

[0018] As a further improvement of the above technical solution: the inner wall of the conical sealing gasket is in a conical surface structure, and the narrow end of the conical sealing gasket is arranged toward the bottom plate.

[0019] The beneficial effect of this improvement is that the inclined surface structure of the conical sealing gasket can adapt to pipes with different wall thicknesses within a relatively small diameter variation range, and produce elastic deformation to effectively seal the port of the pipe.

[0020] In order to effectively maintain the pressure and detect the pressure value of the pipeline;

[0021] As a further improvement of the above technical solution: a pressure gauge and a valve are installed on the water injection pipe.

[0022] The beneficial effect of this improvement is that the operator can form a high-pressure sealed water-filled cavity inside the pipeline after turning off the pressure pump, thereby achieving the function of stable pressure maintenance and pipeline detection.

[0023] In order to judge the internal pressure of the pipeline intuitively and quickly;

[0024] As a further improvement of the above technical solution: the pressure gauge is installed on the pipeline between the valve and the sealing plates of multiple specifications.

[0025] The beneficial effect of this improvement is that the operator can visually observe the internal pressure of the pipeline through the pressure gauge.

[0026] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the utility model;

[0028] Figure 2 It is a structural schematic diagram of the fixed sealing component in the utility model;

[0029] Figure 3 It is a structural schematic diagram of the movable sealing assembly in the utility model;

[0030] Figure 4 It is a cross-sectional view of sealing plates of various specifications in the utility model;

[0031] In the figure: 1. fixed sealing assembly; 10. pressure gauge; 11. bottom plate; 12. V-shaped roller; 13. fixed frame; 14. lifting cylinder; 15. sliding frame; 16. sealing plates of various specifications; 161. bottom plate; 162. round pipe; 164. conical sealing gasket; 17. water injection pipe; 18. booster pump; 19. valve; 2. mobile sealing assembly; 21. tightening cylinder; 3. pipeline; 4. controller. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention. Example

[0033] like Figure 1—4 shows: a pressure pipeline pressure detection device, including a fixed sealing component 1 and a movable sealing component 2, the fixed sealing component 1 and the movable sealing component 2 are arranged relatively and both include a bottom plate 11, a V-shaped roller 12 and a fixed frame 13 are installed on the bottom plate 11, the V-shaped roller 12 rollingly supports the pipeline 3, the fixed frame 13 is installed with a lifting cylinder 14, the lifting cylinder 14 is supported and connected with a sliding frame 15, the sliding frame 15 is slidably mounted on the fixed frame 13, and multiple specifications of sealing plates 16 and a tightening cylinder are installed on the sliding frames 15 of the fixed sealing component 1 and the movable sealing component 2, respectively. 21, a multi-specification sealing plate 16 is installed at one end of the tightening oil cylinder 21, and the multi-specification sealing plate 16 includes a bottom plate 161, and a plurality of circular tubes 162 of different diameters are coaxially welded on the bottom plate 161, and a conical sealing pad 164 is arranged on the outer side of the circular tube 162. The axis of the bottom plate 161 is connected to a water injection pipe 17, and the water injection pipe 17 is connected to the water outlet of the booster pump 18. The two rollers in the V-shaped roller 12 are symmetrically arranged with the axis of the multi-specification sealing plate 16 as the symmetry axis. The axis of the pipeline 3 supported by the V-shaped roller 12 is on the same vertical plane as the axis of the multi-specification sealing plate 16, so The height of the multi-specification sealing plate 16 can be adjusted vertically by the lifting cylinder 14 so that the multi-specification sealing plate 16 and the axis of the pipeline 3 can be kept in line. The cylinder body of the lifting cylinder 14 is installed on the fixed frame 13. The piston rod of the lifting cylinder 14 is connected to the sliding frame 15. The lifting cylinder 14 can drive the sliding frame 15 to move up and down stably on the outside of the fixed frame 13. The axis of the tightening cylinder 21 is parallel to the axis of the multi-specification sealing plate 16. When the tightening cylinder 21 moves, the multi-specification sealing plate 16 is squeezed flatly on the end of the pipeline 3 to achieve effective sealing of the pipeline 3. The inner wall of the conical sealing pad 164 has a conical surface structure. , and the narrow end of the conical sealing gasket 164 is arranged toward the bottom plate 161. The inclined structure of the conical sealing gasket 164 can adapt to pipes 3 with different wall thicknesses within a smaller diameter variation range, and produce elastic deformation to effectively seal the port of the pipe 3. The water injection pipe 17 is installed with a pressure gauge 10 and a valve 19. The operator can form a high-pressure sealed water-filled cavity inside the pipe 3 after turning off the booster pump 18, thereby achieving the function of stable pressure maintenance and detection of the pipe 3. The pressure gauge 10 is installed on the pipe between the valve 19 and the multi-specification sealing plate 16. The operator can obtain the internal pressure of the pipe 3 by intuitive observation through the pressure gauge 10.

[0034] The working principle of the present technical solution is as follows: the pipe 3 is hoisted on the V-shaped rollers 12 in the fixed sealing assembly 1 and the movable sealing assembly 2, so that both ends of the pipe 3 are supported by the rolling of the V-shaped rollers 12, and then the operator inputs the thickness and diameter specifications of the pipe 3 into the controller 4, so that the controller 4 automatically controls the lifting cylinder 14 to extend and retract a certain distance, so that the lifting cylinder 14 drives the sliding frame 15 to move up and down, and the sliding frame 15 drives the multi-specification sealing plate 16 and the tightening cylinder 21 to move up and down, so that the axis of the multi-specification sealing plate 16 and the axis of the pipe 3 are kept at the same height, and because the two rollers in the V-shaped roller 12 are symmetrical about the axis of the multi-specification sealing plate 16 The arrangement is symmetrical, so at this time the axis of the pipeline 3 remains collinear with the axis of the multi-specification sealing plate 16; then, the tightening cylinder 21 extends to drive the multi-specification sealing plate 16 installed at one end to press against one end of the pipeline 3, pushing the pipeline 3 to move under the rolling support of the V-shaped roller 12, and the round tubes 162 at both ends of the pipeline 3 that are adapted to the inner wall of the pipeline 3 are inserted into the pipeline 3. Under the support of the tightening cylinder 21, the conical sealing gasket 164 moves close to the inner wall of the pipeline 3 and produces elastic deformation, playing an effective sealing role; then the pressure pump 18 is operated to inject water into the pipeline 3 and increase the pressure to a suitable detection pressure. After the pressure holding test is completed, the operator controls the tightening cylinder 21 to reset and the pipeline 3 can be lifted out.

[0035] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method of the present invention and its core idea. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements, modifications or changes can be made, and the above technical features can be combined in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. A pressure pipe pressure detection device, characterized in that: The invention comprises a fixed sealing component (1) and a movable sealing component (2), wherein the fixed sealing component (1) and the movable sealing component (2) are arranged relative to each other and both comprise a bottom plate, wherein a V-shaped roller (12) and a fixed frame (13) are mounted on the bottom plate, wherein the V-shaped roller (12) rollingly supports a pipeline (3), wherein a lifting cylinder (14) is mounted on the fixed frame (13), wherein the lifting cylinder (14) supports and is connected to a sliding frame (15), wherein the sliding frame (15) is slidably mounted on the fixed frame (13), and wherein the fixed sealing component (1) and the movable sealing component ( 2) are respectively mounted on the sliding frame (15), and a sealing plate (16) of multiple specifications and a tightening oil cylinder (21), one end of the tightening oil cylinder (21) is mounted with a sealing plate (16) of multiple specifications, the sealing plate (16) of multiple specifications comprising a bottom plate (161), a circular tube (162) of multiple diameters being coaxially welded to the bottom plate (161), a conical sealing gasket (164) being arranged on the outer side of the circular tube (162), a water injection pipe (17) being connected to the axis of the bottom plate (161), and the water injection pipe (17) being connected to the water outlet of the booster pump (18).

2. A pressure pipe pressure detection device according to claim 1, characterized in that: Two of the V-shaped rollers (12) are symmetrically arranged with the axis of the multi-specification sealing plate (16) as the axis of symmetry.

3. A pressure pipe pressure detection device according to claim 1, characterized in that: The cylinder body of the lifting cylinder (14) is mounted on the fixed frame (13), and the piston rod of the lifting cylinder (14) is connected to the sliding frame (15).

4. A pressure pipeline pressure detection device according to claim 1, characterized in that: The axis of the tightening oil cylinder (21) is parallel to the axis of the multi-specification sealing plate (16).

5. A pressure pipeline pressure detection device according to claim 1, characterized in that: The inner wall of the conical sealing gasket (164) is in a conical surface structure, and the narrow end of the conical sealing gasket (164) is arranged towards the bottom plate (161).

6. A pressure pipeline pressure detection device according to claim 1, characterized in that: A pressure gauge (10) and a valve (19) are installed on the water injection pipe (17).

7. A pressure pipeline pressure detection device according to claim 6, characterized in that: The pressure gauge (10) is installed on the pipeline between the valve (19) and the sealing plate (16) of multiple specifications.

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