Hydraulic pressure test device for marine steel pipeline

Abstract

The utility model belongs to the technical field of marine steel pipeline testing devices, and particularly relates to a marine steel pipeline hydraulic pressure testing device which comprises a bottom plate, the upper end of the bottom plate is fixedly connected with a supporting plate, a first blocking plate and a supporting piece, and a first electric telescopic rod is fixedly installed in the supporting plate. A second plugging plate is fixedly connected to the output end of the first electric telescopic rod, a circular hole is formed in the left end face of the first plugging plate, a water pipe is fixedly connected to the left end of the first plugging plate, a cavity is formed in the first plugging plate, and a water pressure tester, an exhaust pipe and a valve are fixedly connected to the upper end of the first plugging plate; the valve is fixedly installed on the circumferential face of the exhaust pipe, and the exhaust pipe extends downwards into the cavity and communicates with the cavity. The steel pipeline hydraulic pressure testing device has the effect of tightly and stably blocking the two ends of a steel pipeline, so that the two ends of the steel pipeline are sealed more tightly, leakage is not prone to occurring, and therefore a hydraulic pressure test on the steel pipeline can be completed smoothly and accurately.

Description

Technical Field

[0001] This utility model belongs to the technical field of marine steel pipe testing devices, specifically a hydrostatic testing device for marine steel pipes. Background Technology

[0002] Fiberglass reinforced plastic (FRP) pipes, also known as fiberglass spiral wound pipes, primarily use fiberglass and its products as reinforcing materials, unsaturated polyester resin and epoxy resin as basic materials, and inorganic non-metallic particulate materials such as quartz sand and calcium carbonate as fillers. The hydrostatic test of FRP pipes is an important reference for detecting their quality and obtaining design parameters.

[0003] A search revealed that patent application number 2023200621162 discloses a water pressure testing device for testing fiberglass pipes. In this utility model, an electric push rod pushes two compression plugs closer together, causing the compression plugs to be inserted into the inner walls of both ends of the fiberglass pipe for support and sealing. At the same time, two support rods move closer together, and the lower top block contacts the upper top block, which can compress the support plate to move upward, ensuring that the support components located on the support plate can reach the bottom of the fiberglass pipe, increasing the contact with the fiberglass pipe and improving the stability of the support.

[0004] When the above-mentioned equipment is in use, the electric push rod drives the two compression plugs to approach each other and insert them into both ends of the steel pipe, thereby completing the sealing of the steel pipe. However, during the test, if the electric push rod on one side malfunctions and causes the compression plug to loosen, it is easy to cause the steel pipe to not be sealed properly, which will seriously affect the accuracy of the water pressure test results of the steel pipe. Summary of the Invention

[0005] The purpose of this invention is to provide a hydrostatic testing device for marine steel pipes, which has the function of tightly and stably sealing both ends of the steel pipe, making the two ends of the steel pipe more tightly sealed and less prone to leakage, thereby enabling the hydrostatic test of the steel pipe to be completed smoothly and accurately.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A hydrostatic testing device for marine steel pipes is provided, comprising a base plate. A support plate, a first sealing plate, and a support member are fixedly connected to the upper end of the base plate, and the support member is used to support the marine steel pipe. A first electric telescopic rod is fixedly installed inside the support plate. A second sealing plate is fixedly connected to the output end of the first electric telescopic rod. The second sealing plate is located at the upper end of the base plate and simultaneously at the right end of the first sealing plate, and is slidably connected to the base plate. Sealing gaskets are fixedly connected to the ends of the first and second sealing plates that are close to each other. The first sealing plate, the second sealing plate, and the sealing gaskets cooperate to seal both ends of the marine steel pipe. Both the first and second sealing plates have fasteners installed at their close ends, which are used to clamp and fix the marine steel pipe. A circular hole is opened on the left end face of the first sealing plate, and a water pipe is fixedly connected to the left end of the first sealing plate. The water pipe is located at the exact left end of the circular hole. A cavity is opened inside the first sealing plate, and the water pipe communicates with the cavity through the circular hole. A water pressure tester, an exhaust pipe, and a valve are fixedly connected to the upper end of the first sealing plate, and the test end of the water pressure tester extends into the cavity. The connection between the water pressure tester and the first sealing plate is sealed. The valve is fixedly installed on the circumferential surface of the exhaust pipe, and the exhaust pipe extends downward into the cavity and communicates with the cavity.

[0007] Optionally, the sealing gasket is annular in shape, and the inner diameter of the sealing gasket is larger than the diameter of the circular hole, and the extended line of the central axis of the sealing gasket coincides with the central axis of the circular hole.

[0008] Optionally, the support member is located between the first sealing plate and the second sealing plate. The support member includes a support base, a third electric telescopic rod, and a second telescopic rod. The upper end of the base plate is fixedly connected to the third electric telescopic rod and two sets of second telescopic rods. The output end of the third electric telescopic rod is fixedly connected to the support base, and the output ends of the two sets of second telescopic rods are fixedly installed at the bottom end of the support base.

[0009] Optionally, a guide rod is fixedly connected inside the support plate, the guide rod passes through the second sealing plate, and the second sealing plate and the guide rod are slidably connected.

[0010] Optionally, the fastener includes a fixing plate, a threaded cylinder, a threaded rod, and a pressing block. Two fixing plates are fixedly connected to the ends of the first sealing plate and the second sealing plate that are close to each other. The two fixing plates are located at the front and rear ends of the sealing gasket, respectively. A threaded cylinder is fixedly connected to the ends of the two fixing plates that are far from each other. A threaded rod is threadedly connected inside the threaded cylinder. A pressing block is fixedly connected to the end of the threaded rod that is close to the sealing gasket.

[0011] Optionally, a circular through hole is provided on the right end face of the second sealing plate. An observation window is sealed and fixedly installed inside the circular through hole. The observation window is circular, and the extended line of the central axis of the observation window coincides with the central axis of the sealing gasket.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention, through the cooperation of the first sealing plate, the second sealing plate, fasteners, the first electric telescopic rod, and the sealing gasket, not only allows the second sealing plate to move via the first electric telescopic rod and cooperate with the first sealing plate and the sealing gasket to achieve initial sealing of both ends of the marine steel pipe, but also allows the fasteners to clamp and fix the marine steel pipe, making it more stable in its position and less susceptible to influence. Even if the first electric telescopic rod malfunctions, the second sealing plate is less likely to loosen, thus minimizing the impact on the sealing performance of the marine steel pipe. Consequently, hydrostatic testing of the marine steel pipe can be performed more smoothly, and the results will be more accurate. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model from the right side;

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0018] Figure 4 This is a schematic diagram of the structure of the present invention from a partial rear cross-section.

[0019] Figure 5 This utility model Figure 4 A magnified structural diagram at point B in the middle.

[0020] In the diagram: 1. Base plate; 2. First sealing plate; 3. Second sealing plate; 4. First electric telescopic rod; 5. Sealing gasket; 6. Water pressure tester; 7. Exhaust pipe; 8. Valve; 9. Water pipe; 10. Threaded rod; 11. Support base; 12. Guide rod; 13. Second telescopic rod; 14. Support plate; 15. Third electric telescopic rod; 16. Observation window; 17. Fixing plate; 18. Extrusion block; 19. Cavity; 20. Threaded cylinder. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] The embodiments of this utility model are now described with reference to... Figures 1-5This section describes a hydrostatic testing device for marine steel pipes. It includes a base plate 1, with a support plate 14, a first sealing plate 2, and a support member fixedly connected to the upper end of the base plate 1. The support member supports the marine steel pipe. A first electric telescopic rod 4 is fixedly installed inside the support plate 14. A second sealing plate 3 is fixedly connected to the output end of the first electric telescopic rod 4. The second sealing plate 3 is located at the upper end of the base plate 1 and directly to the right of the first sealing plate 2, and is slidably connected to the base plate 1. Sealing gaskets 5 are fixedly connected to the ends of the first sealing plate 2 and the second sealing plate 3 that are close to each other. The first sealing plate 2, the second sealing plate 3, and the sealing gaskets 5 cooperate to seal both ends of the marine steel pipe. Fasteners are installed at both ends to clamp and fix the marine steel pipes. A circular hole is opened on the left end face of the first sealing plate 2, and a water pipe 9 is fixedly connected to the left end of the first sealing plate 2. The water pipe 9 is located at the exact left end of the circular hole. A cavity 19 is opened inside the first sealing plate 2, and the water pipe 9 communicates with the cavity 19 through the circular hole. A water pressure tester 6, an exhaust pipe 7, and a valve 8 are fixedly connected to the upper end of the first sealing plate 2, and the test end of the water pressure tester 6 extends into the cavity 19. The connection between the water pressure tester 6 and the first sealing plate 2 is sealed. The valve 8 is fixedly installed on the circumferential surface of the exhaust pipe 7, and the exhaust pipe 7 extends downward into the cavity 19 and communicates with the cavity 19. During operation, the marine steel pipe is first placed on the support. The support structure initially supports the marine steel pipe. Simultaneously, the support structure is controlled to move the marine steel pipe upwards, aligning both ends with the two sealing gaskets 5. Then, the first electric telescopic rod 4 is activated, causing the second sealing plate 3 to move to the left. When the second sealing plate 3 and the sealing gasket 5 are tightly against the right end of the marine steel pipe, the first electric telescopic rod 4 continues to push the marine steel pipe to the left until both ends are tightly against the two sealing gaskets 5. At this point, the fasteners can clamp the marine steel pipe securely. The marine steel pipe is then more stably positioned between the first sealing plate 2 and the second sealing plate 3, reducing the risk of damage to the marine steel pipe due to malfunctions of the first electric telescopic rod 4 during testing. If leakage occurs due to loosening between the two ends of the pipe and the sealing gasket 5 and the two sealing plates, during the test, the water pipe 9 is connected to an external water source. The external water source enters the marine steel pipe through the water pipe 9 and the circular hole. At the same time, water will gradually enter the cavity 19. Meanwhile, the gas inside the cavity 19 and the marine steel pipe will be discharged through the exhaust pipe 7. When water is continuously drained from the exhaust pipe 7, it indicates that the marine steel pipe is full of water. At this time, the valve 8 is closed and the water pipe 9 is sealed. No more water is injected into the marine steel pipe. During the water injection and for a period of time after the water injection is completed, the water pressure tester 6 is used for monitoring. When the water injection is completed, the value displayed by the water pressure tester 6 remains a stable value and there is no leakage in the marine steel pipe. Then the water pressure test is qualified.

[0023] Compared with the prior art, this utility model, through the cooperation of the first sealing plate 2, the second sealing plate 3, the fasteners, the first electric telescopic rod 4, and the sealing gasket 5, not only can the second sealing plate 3 be moved by the first electric telescopic rod 4 and cooperate with the first sealing plate 2 and the sealing gasket 5 to complete the initial sealing of both ends of the marine steel pipe, but the fasteners can also clamp and fix the marine steel pipe, so that the marine steel pipe can be more stably positioned and less affected. Even if the first electric telescopic rod 4 fails, the second sealing plate 3 is not easy to loosen, thus not easily affecting the sealing performance of the marine steel pipe. As a result, the hydrostatic test of the marine steel pipe can be carried out more smoothly and the results will be more accurate.

[0024] In another embodiment of this utility model, please refer to Figure 4 and Figure 5 The sealing gasket 5 is annular in shape, and its inner diameter is larger than that of the circular hole. The extended line of the central axis of the sealing gasket 5 coincides with the central axis of the circular hole. During operation, the annular sealing gasket 5 does not affect the use of the circular hole. Thus, when using the sealing gasket 5 to seal marine steel pipes, water can still be injected into the steel pipe through the circular hole.

[0025] In another embodiment of this utility model, please refer to Figure 1 , Figure 2 and Figure 4 The support component is located between the first sealing plate 2 and the second sealing plate 3. The support component includes a support base 11, a third electric telescopic rod 15, and two sets of second telescopic rods 13. The upper end of the base plate 1 is fixedly connected to the third electric telescopic rod 15 and two sets of second telescopic rods 13. The output end of the third electric telescopic rod 15 is fixedly connected to the support base 11, and the output ends of the two sets of second telescopic rods 13 are fixedly installed at the bottom end of the support base 11. When the third electric telescopic rod 15 is working, it drives the support base 11 to move up and down, thereby driving the marine steel pipe located on the support base 11 to move up and down. By setting up the support component, not only can the marine steel pipe be supported, but its position can also be adjusted so that both ends of the marine steel pipe can be aligned with the two sealing gaskets 5 for subsequent sealing.

[0026] In another embodiment of this utility model, see Figure 1 , Figure 2 and Figure 4 A guide rod 12 is fixedly connected inside the support plate 14. The guide rod 12 passes through the second sealing plate 3, and the second sealing plate 3 is slidably connected to the guide rod 12. During operation, the guide rod 12 guides the second sealing plate 3, allowing the second sealing plate 3 to move more smoothly.

[0027] In another embodiment of this utility model, please refer to Figures 1 to 5The fasteners include a fixing plate 17, a threaded cylinder 20, a threaded rod 10, and a pressing block 18. Two fixing plates 17 are fixedly connected to the ends of the first sealing plate 2 and the second sealing plate 3 that are close to each other. The two fixing plates 17 are located at the front and rear ends of the sealing gasket 5, respectively. A threaded cylinder 20 is fixedly connected to the ends of the two fixing plates 17 that are far from each other. A threaded rod 10 is threadedly connected inside the threaded cylinder 20. A pressing block 18 is fixedly connected to the end of the threaded rod 10 that is close to the sealing gasket 5. During operation, rotating the threaded rod 10, in conjunction with the threaded cylinder 20, moves the pressing block 18 towards the marine steel pipe, thereby pressing and fixing the marine steel pipe, allowing it to be more stably positioned between the two sealing plates.

[0028] In another embodiment of this utility model, please refer to Figure 2 and Figure 4 The second sealing plate 3 has a circular through hole on its right end face. An observation window 16 is sealed and fixedly installed inside the circular through hole. The observation window 16 is circular, and the extended line of its central axis coincides with the central axis of the sealing gasket 5. During operation, the observation window 16 allows for convenient observation of the internal condition of the marine steel pipe. When the two sealing plates seal marine steel pipes of different diameters, observation through the observation window 16 helps prevent the marine steel pipe from being installed too skewed. If the edges of both ends of the marine steel pipe coincide with the observation window 16, it indicates that the marine steel pipe is too skewed, which will affect the subsequent water injection speed into the marine steel pipe, thus affecting the progress of the hydrostatic test.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 hydrostatic testing device for marine steel pipes, comprising a base plate (1), characterized in that: The upper end of the base plate (1) is fixedly connected to a support plate (14), a first sealing plate (2), and a support member. The support member is used to support the marine steel pipe. The support plate (14) is fixedly installed with a first electric telescopic rod (4). The output end of the first electric telescopic rod (4) is fixedly connected to a second sealing plate (3). The second sealing plate (3) is located at the upper end of the base plate (1) and at the right end of the first sealing plate (2). The second sealing plate (3) is slidably connected to the base plate (1). Sealing gaskets (5) are fixedly connected to the ends of the first sealing plate (2) and the second sealing plate (3) that are close to each other. The first sealing plate (2), the second sealing plate (3), and the sealing gaskets (5) cooperate to seal the two ends of the marine steel pipe. Sealing gaskets (5) are installed at the ends of the first sealing plate (2) and the second sealing plate (3) that are close to each other. Fasteners, and fasteners are used to clamp and fix marine steel pipes. A circular hole is opened on the left end face of the first sealing plate (2). A water pipe (9) is fixedly connected to the left end of the first sealing plate (2). The water pipe (9) is located at the right left end of the circular hole. A cavity (19) is opened inside the first sealing plate (2). The water pipe (9) is connected to the cavity (19) through the circular hole. A water pressure tester (6), an exhaust pipe (7) and a valve (8) are fixedly connected to the upper end of the first sealing plate (2). The test end of the water pressure tester (6) extends into the cavity (19). The connection between the water pressure tester (6) and the first sealing plate (2) is sealed. The valve (8) is fixedly installed on the circumferential surface of the exhaust pipe (7). The exhaust pipe (7) extends downward into the cavity (19) and is connected to the cavity (19).

2. The hydrostatic testing device for marine steel pipes as described in claim 1, characterized in that: The sealing gasket (5) is in the shape of an annular ring, and the inner diameter of the sealing gasket (5) is larger than the diameter of the circular hole. The extended line of the central axis of the sealing gasket (5) coincides with the central axis of the circular hole.

3. The hydrostatic testing device for marine steel pipes as described in claim 1, characterized in that: The support is located between the first sealing plate (2) and the second sealing plate (3). The support includes a support base (11), a third electric telescopic rod (15), and a second telescopic rod (13). The upper end of the base plate (1) is fixedly connected to the third electric telescopic rod (15) and two sets of second telescopic rods (13). The output end of the third electric telescopic rod (15) is fixedly connected to the support base (11), and the output ends of the two sets of second telescopic rods (13) are fixedly installed at the bottom end of the support base (11).

4. The hydrostatic testing device for marine steel pipes as described in claim 1, characterized in that: The support plate (14) is internally fixedly connected to a guide rod (12), which passes through the second sealing plate (3) and is slidably connected to the second sealing plate (3).

5. The hydrostatic testing device for marine steel pipes as described in claim 1, characterized in that: The fastener includes a fixing plate (17), a threaded cylinder (20), a threaded rod (10), and a pressing block (18). The first sealing plate (2) and the second sealing plate (3) are each fixedly connected to two fixing plates (17) at their respective ends close to each other. The two fixing plates (17) are located at the front and rear ends of the sealing gasket (5), respectively. The two fixing plates (17) are each fixedly connected to a threaded cylinder (20) at their respective ends far from each other. The threaded cylinder (20) is internally threaded with a threaded rod (10). The end of the threaded rod (10) close to the sealing gasket (5) is fixedly connected to a pressing block (18).

6. The hydrostatic testing device for marine steel pipes as described in claim 1, characterized in that: The right end face of the second sealing plate (3) is provided with a circular through hole. The inside of the circular through hole is sealed and fixedly installed with an observation window (16). The observation window (16) is circular, and the extended line of the central axis of the observation window (16) coincides with the central axis of the sealing gasket (5).

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