Water pressure test device for glass reinforced plastic pipe

Abstract

The utility model discloses a glass reinforced plastic pipe hydrostatic test device which comprises a glass reinforced plastic pipe, flanges are welded to the two sides of the glass reinforced plastic pipe, a water injection pipe is connected to the inner wall of a supporting cylinder in an inserted mode, the outer wall of the water injection pipe is connected with the supporting cylinder through a fixing structure, and one end, located in the glass reinforced plastic pipe, of the water injection pipe is fixedly communicated with a hose. The water injection pipe is conveniently installed through the supporting cylinder, water injection work can be conducted into the glass fiber reinforced plastic pipe under the action of the water injection pipe, effective proceeding of a hydrostatic test is guaranteed, stable proceeding of the water injection work is guaranteed under the action of the fixing structure, and the water injection pipe is prevented from being separated from the supporting cylinder; the fixing position of the water outlet end can be changed, the application range is guaranteed, meanwhile, certain anti-pressure capacity is achieved, the connecting position of the pipe fitting is prevented from being damaged by water pressure, meanwhile, the hose is made of thick rubber, the water pressure effect is avoided, the hose is extruded and sealed, and the liquidity of the pipe fitting is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrostatic test of fiberglass pipes, and particularly relates to a hydrostatic test device for fiberglass pipes. Background Art

[0002] The hydrostatic test of large-diameter fiberglass pipes refers to the hydrostatic test of fiberglass pipes with a relatively large diameter to verify their pressure resistance performance under the design pressure. The hydrostatic test is one of the commonly used pipeline test methods, which can ensure that the pipeline will not leak or burst during use, and ensure the safety and reliability of the project. In the existing hydrostatic test of high-pressure large-diameter fiberglass pipes, when injecting water, as the water pressure continuously increases, it is easy to damage the pipe fittings, affecting the use effect of the pipe fittings and thus the test results. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a hydrostatic test device for fiberglass pipes to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A hydrostatic test device for fiberglass pipes, including a fiberglass pipe, flanges are welded on both sides of the fiberglass pipe, and blind plates are also arranged on both sides of the fiberglass pipe. A flange is fixedly assembled on the outer wall of the blind plate, and two mutually fitting flanges are fixed by bolts. The blind plate is a semi-hollow spherical shape, and a support cylinder is fixedly penetrated through the center of the blind plate. A water injection pipe is inserted into the inner wall of the support cylinder, and the outer wall of the water injection pipe is connected to the support cylinder through a fixing structure. One end of the water injection pipe located inside the fiberglass pipe is fixedly communicated with a hose, and the hose is fixedly connected to the upper edge of the inner wall of the blind plate.

[0005] Preferably, the fixing structure includes a sleeve and a fixing cylinder. The sleeve is communicated with the fixing cylinder, the sleeve is screwed on the outer wall of the water injection pipe, and the fixing cylinder is screwed on the outer wall of the support cylinder.

[0006] Preferably, it further includes an exhaust structure. The upper end of the side wall of the hose is communicated with the exhaust structure, and the exhaust structure penetrates through the blind plate and extends to the outside.

[0007] Preferably, the exhaust structure includes a bent pipe. The bent pipe is fixedly communicated with the side wall of the hose, and a valve body is fixedly communicated with the upper end of the bent pipe. The opening horizontal position of the valve body is higher than the opening horizontal position of the hose.

[0008] Preferably, it further includes a pressure relief part. The pressure relief part is fixedly assembled on the outer wall of one end of the water injection pipe located in the inner cavity of the blind plate. The pressure relief part is a conical structure, which can direct the water flow pressure to both sides of the water injection pipe.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: The hydrostatic test of large-diameter fiberglass pipes refers to the hydrostatic test of fiberglass pipes with a relatively large diameter to verify their pressure resistance under the design pressure. Through the action of the blind plate, a sealed space is ensured inside the fiberglass pipe to guarantee the effect of the pressure test. The flange can connect the fiberglass pipe and the blind plate. The water injection pipe can be conveniently installed through the support cylinder, and through the action of the water injection pipe, water injection work can be carried out into the fiberglass pipe to ensure the effective progress of the hydrostatic test. Through the action of the fixing structure, the stability of the water injection work is ensured, and the water injection pipe is prevented from detaching from the support cylinder. Through the setting of the hose, the fixed position of the water outlet end can be changed to ensure the applicable range, and at the same time, it has a certain compressive capacity to avoid damage to the connection of the pipe fittings by water pressure. At the same time, the hose will use thick rubber to avoid being squeezed and sealed by the action of water pressure and ensure the fluidity of the pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0011] Figure 2 is a plan sectional view of the utility model;

[0012] Figure 3 is a three-dimensional schematic diagram of the water injection pipe;

[0013] Figure 4 is Figure 2 an enlarged schematic diagram of the structure at A in

[0014] In the figure: 1 - fiberglass pipe, 2 - flange, 3 - blind plate, 4 - fixing structure, 41 - sleeve, 42 - fixing cylinder, 5 - water injection pipe, 6 - pressure relief component, 7 - hose, 8 - exhaust structure, 81 - valve body, 82 - elbow pipe, 9 - support cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0016] Please refer to Figures 1-4, the present utility model provides a hydrostatic test device for a glass steel pipe, which includes a glass steel pipe 1. Flanges 2 are welded on both sides of the glass steel pipe 1. Plug plates 3 are also arranged on both sides of the glass steel pipe 1. Flanges 2 are fixedly assembled on the outer walls of the plug plates 3. Two flanges 2 that are in contact with each other are fixed by bolts. The plug plate 3 is in the shape of a semi-hollow sphere. A support cylinder 9 is fixedly penetrated through the center of the plug plate 3. A water injection pipe 5 is inserted into the inner wall of the support cylinder 9. The outer wall of the water injection pipe 5 is connected to the support cylinder 9 through a fixing structure 4. One end of the water injection pipe 5 located inside the glass steel pipe 1 is fixedly communicated with a flexible hose 7, and the flexible hose 7 is fixedly connected to the upper edge of the inner wall of the plug plate 3.

[0017] The hydrostatic test of the large-diameter glass steel pipe 1 refers to the hydrostatic test of a glass steel pipe with a relatively large diameter to verify its pressure resistance performance under the design pressure. Through the action of the plug plate 3, a closed space is formed inside the glass steel pipe 1 to ensure the effect of the pressure test. The flange 2 can connect the glass steel pipe 1 and the plug plate 3. Through the support cylinder 9, it is convenient to install the water injection pipe 5. And through the action of the water injection pipe 5, water can be injected into the glass steel pipe 1 to ensure the effective progress of the hydrostatic test. Through the action of the fixing structure 4, the water injection work can be carried out stably, avoiding the water injection pipe 5 from detaching from the support cylinder 9. Through the setting of the flexible hose 7, the fixed position of the water outlet end can be changed to ensure the applicable range. At the same time, it has a certain compressive capacity to avoid the water pressure from damaging the connection of the pipe fittings. At the same time, the flexible hose 7 will adopt thick rubber to avoid being squeezed and sealed by the water pressure and ensure the fluidity of the pipe fittings.

[0018] The fixing structure 4 includes a sleeve 41 and a fixing cylinder 42. The sleeve 41 is communicated with the fixing cylinder 42. The sleeve 41 is screwed on the outer wall of the water injection pipe 5, and the fixing cylinder 42 is screwed on the outer wall of the support cylinder 9.

[0019] When installing the fixing structure 4, first, the fixing cylinder 42 is sleeved on the outer wall of the water injection pipe 5 and close to the support cylinder 9. The fixing cylinder 42 is screwed on the outer wall of the support cylinder 9. At the same time, the sleeve 41 is screwed on the outer wall of the water injection pipe 5 to connect and fix them.

[0020] It also includes an exhaust structure 8. The upper end of the side wall of the flexible hose 7 is communicated with the exhaust structure 8. The exhaust structure 8 penetrates through the plug plate 3 and extends to the outside.

[0021] The exhaust structure 8 includes an elbow 82. The elbow 82 is fixedly communicated with the side wall of the flexible hose 7. The upper end of the elbow 82 is fixedly communicated with a valve body 81. The opening horizontal position of the valve body 81 is higher than the opening horizontal position of the flexible hose 7.

[0022] In order to ensure the accuracy of the hydrostatic test, the air at the upper end can be discharged. At this time, the valve body 81 is opened, and the air enters the valve body 81 through the elbow 82 and is discharged. At this time, when there is no air, the water will be discharged through the valve body 81. Then the valve body 81 is closed to ensure the exhaust effect.

[0023] It further includes a pressure relief member 6 which is fixedly assembled on the outer wall of one end of the water injection pipe 5 located inside the plug plate 3 cavity. The pressure relief member 6 is a conical structure, which can direct the water flow pressure to both sides of the water injection pipe 5 to reduce the pressure of the water injection pipe 5.

[0024] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A glass fiber reinforced plastic pipe water pressure test device, characterized in that: The invention comprises a glass fiber reinforced plastic pipe (1), flanges (2) are welded on both sides of the glass fiber reinforced plastic pipe (1), plugging plates (3) are also arranged on both sides of the glass fiber reinforced plastic pipe (1), the outer wall of the plugging plate (3) is fixedly equipped with a flange (2), and the two flanges (2) that fit together are fixed by bolts. The plugging plate (3) is in the shape of a semi-hollow sphere, a support tube (9) is fixedly passed through the center of the plugging plate (3), a water injection pipe (5) is inserted into the inner wall of the support tube (9), the outer wall of the water injection pipe (5) is connected to the support tube (9) through a fixing structure (4), and one end of the water injection pipe (5) located in the glass fiber reinforced plastic pipe (1) is fixedly connected to a hose (7), and the hose (7) is fixedly connected to the upper edge of the inner wall of the plugging plate (3).

2. A glass fiber reinforced plastic pipe water pressure test device according to claim 1, characterized in that: The fixing structure (4) comprises a sleeve (41) and a fixing cylinder (42), wherein the sleeve (41) is connected to the fixing cylinder (42), the sleeve (41) is screwed to the outer wall of the water injection pipe (5), and the fixing cylinder (42) is screwed to the outer wall of the support cylinder (9).

3. A glass fiber reinforced plastic pipe water pressure testing device according to claim 1, characterized in that: It also includes an exhaust structure (8), the upper end of the side wall of the hose (7) is connected to the exhaust structure (8), and the exhaust structure (8) penetrates the blocking plate (3) and extends to the outside.

4. A glass fiber reinforced plastic pipe water pressure test device according to claim 3, characterized in that: The exhaust structure (8) comprises a bent pipe (82), the bent pipe (82) being fixedly connected to the side wall of the hose (7), the upper end of the bent pipe (82) being fixedly connected to a valve body (81), and the horizontal position of the opening of the valve body (81) being higher than the horizontal position of the opening of the hose (7).

5. The glass fiber reinforced plastic pipe water pressure testing device according to claim 1, characterized in that: It also includes a pressure relief component (6), which is fixedly mounted on the outer wall of one end of the water injection pipe (5) located in the inner cavity of the blocking plate (3), and the pressure relief component (6) is a cone structure, which can guide the water flow pressure to both sides of the water injection pipe (5).

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