A pressure pipe pressure test device

Abstract

This utility model discloses a pressure pipeline pressure resistance testing device, relating to the field of pipeline pressure resistance testing technology. It includes a workbench with a pressure boosting mechanism fixedly installed inside. A detection groove and a cover plate are provided at the upper end of the workbench. A sliding groove and a limiting protection unit are provided within the detection groove. A displacement unit is installed within the sliding groove, and a bracket is mounted on the displacement unit. A conduit and a sealing unit are fixedly installed on the bracket. The advantages are that the elastic components and the top plate provide multi-point limiting clamping of the pipeline, improving the stability of the pipeline testing process and ensuring the accuracy of the test results. The arranged pressure sensors facilitate the monitoring of pipeline deformation by the operator. In the event of a burst, the elastic components and buffer components buffer and disperse the impact force of the bursting pipeline fragments, reducing damage to the equipment and ensuring the service life of the equipment and the safety of the testing process.

Description

Technical Field

[0001] This utility model relates to the field of pipeline pressure resistance testing technology, and in particular to a pressure pipeline pressure resistance testing device. Background Technology

[0002] Before installation, pressure pipelines require random inspection and pressure testing. A gas-liquid mixing pressure test is typically used, which offers advantages such as minimal preparation, simple operation, low risk, and easy observation of results. The main procedure involves filling the pressure pipeline with clean water, then connecting a nitrogen cylinder to the pipeline via a pressure reducing valve. Once the pressure reaches the test pressure, the surface condition and any leaks are observed to determine if the pipeline meets the required standards.

[0003] A search revealed that Chinese patent application CN221078258U discloses a pressure pipeline pressure resistance testing device, which mainly uses a clamping plate and a moving rack to drive a marking pen to slide and mark on an identification plate, thereby determining pipeline damage.

[0004] Compared with existing technologies in related fields, it can be seen that when existing equipment tests pipelines, the pipelines are mostly simply placed. During the test, due to the high internal pressure of the pipeline and the different pipeline quality, there is a risk of the pipeline bursting. When the pipeline bursts, the fragments can cause damage to the equipment and personnel, increasing the danger. Utility Model Content

[0005] The purpose of this invention is to provide a pressure testing device for pressure pipelines in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A pressure pipeline pressure resistance testing device includes a workbench, a pressurizing mechanism fixedly installed inside the workbench, a test groove and a cover plate provided at the upper end of the workbench, the cover plate being slidably connected to the workbench, a slide groove and a limit protection unit provided inside the test groove, a displacement unit fixedly installed inside the slide groove, a bracket fixedly installed on the displacement unit, a conduit and a sealing unit fixedly installed on the bracket, and the conduit being connected to the pressurizing mechanism.

[0008] The limit protection unit includes an electrically controlled telescopic mechanism, which is fixedly installed on both sides of the workbench. The electrically controlled telescopic mechanism and the slide are arranged in a cross shape. A buffer component is fixedly installed on the telescopic end of the electrically controlled telescopic mechanism. A movable frame is fixedly installed on the buffer component. Elastic components are fixedly arranged on the movable frame. A top plate is fixedly installed on the elastic components. A pressure sensor is fixedly installed on the top plate.

[0009] Furthermore, the buffer assembly includes a disc spring assembly, which is fixedly installed on the telescopic end of the electrically controlled telescopic mechanism. The disc spring assembly is fixedly connected to a mounting base, and a support base is fixedly installed on the mounting base by bolts. The first airbag is fixedly installed inside the support base, and the support base is slidably connected to the movable frame.

[0010] Furthermore, the elastic component includes damping rods, which are fixedly arranged on the movable frame. The telescopic ends of the damping rods are fixedly connected to the top plate, and springs are sleeved on the damping rods.

[0011] Furthermore, an anti-slip pad is fixedly installed on the top plate, covering the pressure sensor.

[0012] Furthermore, the sealing unit includes a sealing gasket and a limiting seat. The sealing gasket and the limiting seat are fixedly installed on the bracket and are sleeved on the conduit. The sealing gasket is frustoconical in shape, and the limiting seat is located outside the sealing gasket. A second airbag is fixedly installed inside the limiting seat, and the second airbag is connected to the pressurization mechanism.

[0013] Furthermore, the displacement unit includes a motor and a bidirectional screw. The motor is fixedly mounted on the side of the worktable, and the bidirectional screw is rotatably mounted in the slide groove. The bidirectional screw is fixedly connected to the output shaft of the motor. The two ends of the bidirectional screw have opposite thread directions, and the two ends of the bidirectional screw are connected to sliders through threaded engagement. The sliders are slidably connected in the slide groove, and the upper surface of the sliders is fixedly connected to a bracket.

[0014] Furthermore, both the slider and the groove are trapezoidal.

[0015] The advantages compared to existing technologies are as follows:

[0016] 1. The system uses elastic components and a top plate to clamp the pipeline at multiple points, improving stability during pipeline inspection and ensuring the accuracy of test results. A series of pressure sensors monitor different locations on the pipeline in real time, allowing staff to easily monitor pipeline deformation and stop the test promptly. Furthermore, in the event of a burst, the movable frame reduces fragment dispersion, and the elastic and buffer components cushion and disperse the impact of the bursting pipe fragments, minimizing damage to the equipment and ensuring the equipment's lifespan and safety during the inspection process.

[0017] 2. The sealing gasket, with its frustoconical design, facilitates positioning and support at both ends of the pipe, increases the contact area with the pipe, and allows the sealing gasket to support and seal pipes of different diameters. The second airbag further enhances the sealing effect at both ends of the pipe, effectively preventing leakage at both ends and ensuring the accuracy of pipe testing results. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a first isometric structural schematic diagram of a pressure pipeline pressure resistance testing device according to the present invention;

[0020] Figure 2 This is a side view sectional structural diagram of a pressure pipeline pressure resistance testing device according to the present invention;

[0021] Figure 3 This utility model describes a pressure pipeline pressure resistance testing device. Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This utility model describes a pressure pipeline pressure resistance testing device. Figure 2 Enlarged structural diagram at point B;

[0023] Figure 5 This is a front view cross-sectional structural diagram of a pressure pipeline pressure resistance testing device according to the present invention;

[0024] Figure 6 This utility model describes a pressure pipeline pressure resistance testing device. Figure 5 Enlarged structural diagram at point C;

[0025] Figure 7 This is a second isometric structural schematic diagram of a pressure pipeline pressure resistance testing device according to the present invention.

[0026] The annotations in the attached figures are explained as follows:

[0027] 1. Workbench; 2. Conduit; 301. Electrically controlled telescopic mechanism; 302. Disc spring assembly; 303. Mounting base; 304. Support base; 305. First airbag; 306. Movable frame; 307. Damping rod; 308. Spring; 309. Top plate; 310. Pressure sensor; 311. Anti-slip pad; 401. Sealing gasket; 402. Limiting seat; 403. Second airbag; 501. Motor; 502. Bidirectional screw; 503. Slider; 6. Bracket; 7. Slide groove; 8. Cover plate; 9. Detection groove; 10. Pressurization mechanism. Detailed Implementation

[0028] like Figures 1-7As shown, a pressure pipeline pressure resistance testing device includes a workbench 1. A pressurizing mechanism 10 is fixedly installed inside the workbench 1. A detection groove 9 and a cover plate 8 are provided at the upper end of the workbench 1. The cover plate 8 is slidably connected to the workbench 1. A sliding groove 7 and a limiting protection unit are provided inside the detection groove 9. A displacement unit is fixedly installed inside the sliding groove 7. A bracket 6 is fixedly installed on the displacement unit. A conduit 2 and a sealing unit are fixedly installed on the bracket 6. The conduit 2 is connected to the pressurizing mechanism 10. The pressurizing mechanism 10 operates using existing technology. A display and control mechanism connected to the pressurizing mechanism 10 is installed on the workbench 1, facilitating real-time monitoring of the testing process by the operator. The conduit 2 is an elastic tube. The pressurizing mechanism 10 is connected to an external gas delivery device and an external liquid. The conveying device places the pipeline to be tested into the testing tank 9. The displacement unit moves the guide tube 2 and the sealing unit through the bracket 6, allowing the guide tube 2 to enter the pipeline. The sealing unit seals and clamps the two ends of the pipeline, and the limiting protection unit limits the pipeline. After the pipeline is fixed, the testing tank 9 is closed by the cover plate 8 to shield the pipeline and protect the personnel, improving safety. The external gas conveying device and the external liquid conveying device convey gaseous and liquid materials into the pressurizing mechanism 10. The pressurizing mechanism 10 then conveys the materials into the pipeline through the guide tube 2 to test the pipeline's state under different pressures and complete the durability test of the pipeline. During the test, the limiting protection unit shields the pipeline to prevent the pipeline from bursting and causing danger.

[0029] like Figures 1-4 , Figure 6 , Figure 7As shown, the limiting protection unit includes an electrically controlled telescopic mechanism 301, which is fixedly installed on both sides of the workbench 1. The electrically controlled telescopic mechanism 301 and the slide 7 are arranged in a cross shape. A buffer assembly is fixedly installed on the telescopic end of the electrically controlled telescopic mechanism 301. A movable frame 306 is fixedly installed on the buffer assembly. Elastic components are fixedly arranged on the movable frame 306. A top plate 309 is fixedly installed on the elastic components. A pressure sensor 310 is fixedly installed on the top plate 309. The electrically controlled telescopic mechanism 301 and the pressure sensor 310 operate using existing technology. After the support 6 clamps and fixes both ends of the pipe through the sealing unit, the electrically controlled telescopic mechanism 301 drives the movable frame 306 to move through the buffer assembly. The movable frame 306 drives the top plate 309 to move through the elastic components. The elastic components make the top plate 309 and the pressure sensor 310 fit against the surface of the pipe. The electrically controlled telescopic mechanism 301, through the buffer assembly... The components, movable frame 306, elastic components, and top plate 309 provide multi-point limiting and clamping for the pipeline, improving stability during pipeline inspection and ensuring the accuracy of inspection results. The arranged elastic components, via the top plate 309, drive the pressure sensor 310 to adhere to different positions on the pipeline. During inspection, the deformation of the pipeline at different positions is determined based on the changes in the pressure sensor 310 readings, improving safety. In the event of a pipeline burst during testing, the movable frame 306 blocks the pipeline fragments, reducing their dispersion. The burst fragments are compressed by the top plate 309 against the elastic components, which initially buffer and disperse the impact force of the burst fragments. The elastic components, via the movable frame 306, compress the buffer components, which further buffer and disperse the impact force of the burst fragments, reducing the impact force of the burst fragments and minimizing damage to the equipment, thus ensuring the equipment's service life.

[0030] like Figure 2 , Figure 3 , Figure 7As shown, the buffer assembly includes a disc spring assembly 302, which is fixedly installed on the telescopic end of the electrically controlled telescopic mechanism 301. The disc spring assembly 302 is fixedly connected to a mounting base 303. A support base 304 is fixedly installed on the mounting base 303 by bolts. A first airbag 305 is fixedly installed inside the support base 304. The support base 304 is slidably connected to the movable frame 306. The mounting base 303 and the support base 304 are fixedly connected by bolts, facilitating the replacement of the limiting protection unit according to the pipe diameter, thereby better supporting and limiting the pipe. The electrically controlled telescopic mechanism... The compression mechanism 301 supports the support base 304 through the disc spring assembly 302, the mounting base 303, and the first airbag 305. When a burst occurs during pipeline testing, the movable frame 306 slides along the support base 304 and compresses the first airbag 305. The first airbag 305 disperses and buffers the impact force, reducing the impact force. Then, the support base 304 and the mounting base 303 compress the disc spring assembly 302, which further buffers the impact force of the burst, reducing the impact force of the pipeline fragments, thereby protecting the equipment and personnel and improving safety.

[0031] like Figure 4 , Figure 6 As shown, the elastic component includes a damping rod 307, which is fixedly arranged on the movable frame 306. The telescopic end of the damping rod 307 is fixedly connected to the top plate 309. A spring 308 is sleeved on the damping rod 307. The damping rod 307 operates using existing technology. The arrangement of the damping rod 307 and the spring 308 ensures that the top plate 309 and the pressure sensor 310 can continuously adhere to the pipeline. This allows for timely detection of deformation at different locations during pipeline testing, ensuring the accuracy of the test results. Simultaneously, in the event of a pipeline burst during testing, the arrangement of the damping rod 307 and the spring 308 buffers and disperses the pipeline fragments, thereby reducing the impact force of the burst pipeline and the impact force of the pipeline fragments. This protects the entire equipment and personnel, improving safety during the testing process.

[0032] like Figure 4 , Figure 6 As shown, an anti-slip pad 311 is fixedly installed on the top plate 309. The anti-slip pad 311 covers the pressure sensor 310. The anti-slip pad 311 improves the anti-slip properties of the top plate 309, allowing the top plate 309 to better support and fix the pipeline, and can reduce the wear caused by hard contact between the pressure sensor 310 and the pipeline, thus ensuring the service life of the pressure sensor 310.

[0033] like Figure 2 , Figure 6 , Figure 7As shown, the sealing unit includes a sealing gasket 401 and a limiting seat 402. The sealing gasket 401 and the limiting seat 402 are fixedly installed on the bracket 6. The sealing gasket 401 and the limiting seat 402 are sleeved on the conduit 2. The sealing gasket 401 is frustoconical in shape. The limiting seat 402 is located outside the sealing gasket 401. A second airbag 403 is fixedly installed inside the limiting seat 402. The second airbag 403 is connected to the pressurizing mechanism 10. The sealing gasket 401 is an elastic block. When both ends of the pipe are pressed against the sealing gasket 401, the sealing gasket 401 deforms under force, allowing the sealing gasket 401 to fit better. To improve the sealing effect at both ends of the pipeline, the frustoconical design facilitates the positioning and support of the sealing gasket 401 at both ends of the pipeline. This allows the sealing gasket 401 to support and seal pipelines of different diameters. After the sealing gasket 401 supports and seals both ends of the pipeline, the pressurizing mechanism 10 supplies air into the second airbag 403, causing the second airbag 403 to expand and adhere to the outer surface of the pipeline, increasing the contact area. The limiting seat 402 and the second airbag 403 limit the pipeline's position, and the second airbag 403 further enhances the sealing effect at both ends of the pipeline, effectively preventing leakage at both ends and ensuring the accuracy of pipeline testing results.

[0034] like Figure 1 , Figure 2 , Figure 5 , Figure 7 As shown, the displacement unit includes a motor 501 and a bidirectional screw 502. The motor 501 is fixedly installed on the side of the worktable 1, and the bidirectional screw 502 is rotatably installed in the slide groove 7. The output shaft of the motor 501 is fixedly connected to the bidirectional screw 502. The two ends of the bidirectional screw 502 have opposite thread directions. The two ends of the bidirectional screw 502 are connected to sliders 503 by threaded engagement. The sliders 503 are slidably connected in the slide groove 7. The bracket 6 is fixedly connected to the upper surface of the sliders 503. The motor 501 operates using existing technology. After the pipe to be tested is placed in the testing groove 9, the motor 501 drives the bidirectional screw 502. The bidirectional screw 502 drives the bracket 6 to move through the sliders 503, thereby applying force to both ends of the pipe, improving the stability of the pipe, and improving the sealing effect of the sealing unit on both ends of the pipe through the applied pressure.

[0035] like Figure 2 As shown, both the slider 503 and the groove 7 are trapezoidal. The trapezoidal design allows the groove 7 to limit the slider 503, improving the stability of the slider 503 when it slides in the groove 7, thereby better clamping and fixing the pipe and ensuring the accuracy of the pipe inspection structure.

[0036] Working principle: such as Figure 1, Figure 2 , Figures 5-7 As shown, the pipe to be tested is placed in the testing slot 9. The motor 501 drives the bidirectional screw 502, which in turn moves the support 6 via the slider 503. The support 6 moves the conduit 2 and the sealing gasket 401, which then adheres to both ends of the pipe. The pressurizing mechanism 10 supplies air into the second airbag 403, causing it to inflate and adhere to the outer surface of the pipe, thereby fixing and sealing both ends of the pipe.

[0037] like Figures 1-4 , Figure 6 , Figure 7 As shown, the electrically controlled telescopic mechanism 301 supports the support base 304 through the disc spring assembly 302, the mounting base 303 and the first airbag 305. The support base 304 drives the top plate 309 and the pressure sensor 310 to adhere to the surface of the pipe through the anti-slip pad 311 via the damping rod 307, thereby performing multi-point limiting clamping on the pipe.

[0038] like Figure 1 , Figures 4-7 As shown, the detection tank 9 is sealed by the cover plate 8. The external gas conveying device and the external liquid conveying device convey gaseous materials and liquid materials into the pressurizing mechanism 10. The pressurizing mechanism 10 then conveys the materials into the pipeline through the conduit 2, adjusts the pressure in the pipeline, and the pipeline deforms under the action of the internal pressure. According to the changes in the detection values ​​of the pressure sensor 310 at different positions, the deformation of the pipeline at different positions is determined, the state of the pipeline under different pressures is detected, and the durability test of the pipeline is completed.

[0039] like Figures 2-4 , Figure 6 , Figure 7 As shown, when a pipe bursts during testing, the movable frame 306 blocks the pipe fragments, reducing their dispersion. The burst fragments are compressed by the top plate 309 against the damping rods 307 and springs 308. The arranged damping rods 307 and springs 308 buffer and disperse the pipe fragments. The damping rods 307 and springs 308 drive the movable frame 306 to slide along the support base 304, compressing the first airbag 305. The first airbag 305 disperses and buffers the impact force. Then, the support base 304 and mounting base 303 compress the disc spring assembly 302, which further buffers the impact force of the burst, reducing the impact force of the pipe fragments. Finally, the cover plate 8 blocks the pipe fragments, thus protecting the equipment and personnel and improving safety during the testing process.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pressure testing device for pressure pipelines, characterized in that, Includes a workbench (1), inside which a pressurizing mechanism (10) is fixedly installed. The upper end of the workbench (1) is provided with a detection groove (9) and a cover plate (8). The cover plate (8) is slidably connected to the workbench (1). The detection groove (9) is provided with a sliding groove (7) and a limiting protection unit. The sliding groove (7) is fixedly installed with a displacement unit. The displacement unit is fixedly installed with a bracket (6). The bracket (6) is fixedly installed with a conduit (2) and a sealing unit. The conduit (2) is connected to the pressurizing mechanism (10). The limiting protection unit includes an electrically controlled telescopic mechanism (301), which is fixedly installed on both sides of the workbench (1). The electrically controlled telescopic mechanism (301) and the slide (7) are arranged in a cross shape. A buffer assembly is fixedly installed on the telescopic end of the electrically controlled telescopic mechanism (301). A movable frame (306) is fixedly installed on the buffer assembly. Elastic components are fixedly arranged on the movable frame (306). A top plate (309) is fixedly installed on the elastic components. A pressure sensor (310) is fixedly installed on the top plate (309).

2. The pressure testing equipment for pressure pipelines according to claim 1, characterized in that: The buffer assembly includes a disc spring assembly (302), which is fixedly installed on the telescopic end of the electrically controlled telescopic mechanism (301). The disc spring assembly (302) is fixedly connected to a mounting base (303), and a support base (304) is fixedly installed on the mounting base (303) by bolts. A first airbag (305) is fixedly installed inside the support base (304), and the support base (304) is slidably connected to the movable frame (306).

3. The pressure testing equipment for pressure pipelines according to claim 1, characterized in that: The elastic component includes a damping rod (307), which is fixedly arranged on the movable frame (306). The telescopic end of the damping rod (307) is fixedly connected to the top plate (309), and a spring (308) is sleeved on the damping rod (307).

4. The pressure testing equipment for pressure pipelines according to claim 1, characterized in that: An anti-slip pad (311) is fixedly installed on the top plate (309), and the anti-slip pad (311) covers the pressure sensor (310).

5. The pressure testing equipment for pressure pipelines according to claim 1, characterized in that: The sealing unit includes a sealing gasket (401) and a limiting seat (402). The sealing gasket (401) and the limiting seat (402) are fixedly installed on the bracket (6). The sealing gasket (401) and the limiting seat (402) are sleeved on the conduit (2). The sealing gasket (401) is frustoconical in shape. The limiting seat (402) is located outside the sealing gasket (401). A second airbag (403) is fixedly installed inside the limiting seat (402). The second airbag (403) is connected to the pressurization mechanism (10).

6. The pressure testing equipment for pressure pipelines according to claim 1, characterized in that: The displacement unit includes a motor (501) and a bidirectional screw (502). The motor (501) is fixedly installed on the side of the workbench (1). The bidirectional screw (502) is rotatably installed in the slide groove (7). The output shaft of the motor (501) is fixedly connected to the bidirectional screw (502). The threads at both ends of the bidirectional screw (502) are opposite in direction. The two ends of the bidirectional screw (502) are connected to sliders (503) by threaded engagement. The sliders (503) are slidably connected in the slide groove (7). The bracket (6) is fixedly connected to the upper surface of the sliders (503).

7. The pressure testing equipment for pressure pipelines according to claim 6, characterized in that: Both the slider (503) and the groove (7) are trapezoidal.

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