Hydrostatic test device for pressure vessel

Abstract

The utility model discloses a hydrostatic test device for a pressure vessel, and particularly relates to the technical field of hydrostatic tests, comprising a test bench, the upper surface of the test bench is provided with a water collecting tank, the upper surface of the test bench is fixedly provided with a pair of vessel limiting plates for placing the pressure vessel, and the pair of vessel limiting plates form a V-shaped structure. A lifting mechanism is arranged in the test bed, a pressing and fixing structure and a pressure test pump are arranged on the lifting mechanism and are both arranged on the upper surface of the test bed, the pressing and fixing structure is used for pressing and fixing a pressure container arranged on the pair of container limiting plates, and the output end of the pressure test pump is fixedly communicated with a sealing taper sleeve. According to the utility model, the problem that the efficiency of a water pressure test is influenced due to the complicated connection between pipes during the pressure test connection of the pressure vessel is solved; and the technical problem that the pressure container is mostly in an exposed state during the hydrostatic test, so that the safety of the pressure container during the hydrostatic test is insufficient is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrostatic test, and more specifically, the utility model relates to a hydrostatic test device for pressure vessels. Background Art

[0002] During the manufacturing process of pressure vessels, there is generally a pressure resistance test process. In the prior art, the pressure resistance tests of the vast majority of pressure vessels are carried out with water as the medium. The hydrostatic test pressure should be able to assess the strength of the pressure-bearing components, expose their defects, but not damage the pressure-bearing components. If it meets the above conditions, the hydrostatic test is considered qualified. The hydrostatic test pressure should be able to assess the strength of the pressure-bearing components, expose their defects, but not damage the pressure-bearing components. At present, most hydrostatic test devices for pressure vessels use electric pressure test pumps for testing. They are applicable to water or hydraulic oil media, and can conduct pressure tests on various pressure vessels, pipelines, valves, etc. They can also be used as hydraulic energy sources to provide the required pressure, and are suitable for industries such as chemical engineering, construction, plumbing, petroleum and coal, smelting, and shipbuilding.

[0003] Currently, when the pressure test pump is used for pressure test connection at the pipeline end of the pressure vessel, the connection between pipes (the output end of the pressure test pump and the pressure test pipeline end of the pressure vessel) is relatively cumbersome, which affects the efficiency of the hydrostatic test. In addition, during the hydrostatic test, the pressure vessel is mostly in an exposed state, and there are safety deficiencies during the hydrostatic test of the pressure vessel. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a hydrostatic test device for pressure vessels. The technical problems to be solved by the utility model are: the connection between pipes during the pressure test of the pressure vessel is relatively cumbersome, which affects the efficiency of the hydrostatic test; and the pressure vessel is mostly in an exposed state during the hydrostatic test, and there are safety deficiencies during the hydrostatic test of the pressure vessel.

[0005] To achieve the above object, the utility model provides the following technical solution: A hydrostatic test device for pressure vessels, including a test bench. A water collecting tank is provided on the upper surface of the test bench. A pair of container limiting plates for placing the pressure vessel are fixedly installed on the upper surface of the test bench. The pair of container limiting plates form a V-shaped structure. A lifting mechanism is arranged inside the test bench. A pressing and fixing structure and a pressure test pump are arranged on the lifting mechanism. Both the pressing and fixing structure and the pressure test pump are arranged at the upper surface position of the test bench. The pressing and fixing structure is used to press and fix the pressure vessel arranged on the pair of container limiting plates. The output end of the pressure test pump is fixedly communicated with a sealing cone sleeve, and the sealing cone sleeve is used to abut against the pressure test pipeline of the pressure vessel. An explosion-proof observation cover is slidably connected to the test bench, and the explosion-proof observation cover is located outside the container limiting plates.

[0006] In a preferred embodiment, a drain pipe is fixedly penetrated through the side surface of the test bench, and one end of the drain pipe is communicated with the water collecting tank.

[0007] In a preferred embodiment, a drainage gap is reserved between a pair of container limiting plates.

[0008] In a preferred embodiment, the lifting mechanism includes a hydraulic device I fixedly connected inside the test bench and a lifting frame fixedly connected to the output end of the hydraulic device I. Both ends of the lifting frame are movably penetrated to the upper surface position of the test bench, and the pressure test pump is fixedly connected to one end of the lifting frame.

[0009] In a preferred embodiment, a pair of telescopic rods are fixedly connected to the test bench and the lifting frame.

[0010] In a preferred embodiment, the pressing and fixing structure includes a support frame fixedly connected to the other end of the lifting frame, a hydraulic device II fixedly connected to one end of the support frame, and a pressing plate fixedly connected to the output end of the hydraulic device II. The pressing plate is used for pressing and fixing one end of the pressure vessel.

[0011] In a preferred embodiment, a sliding support assembly is arranged on the test bench. The number of the sliding support assemblies is two. The sliding support assembly includes a slide rail fixedly connected to the side surface of the test bench and a slide seat slidably connected to the slide rail. The explosion-proof observation cover is fixedly connected to the slide seat, and the explosion-proof observation cover is arranged in a U-shaped structure.

[0012] The technical effects and advantages of the present utility model:

[0013] 1. For a hydrostatic test device for a pressure vessel of the present utility model, a pair of container limiting plates provide test pressure support for the tubular pressure vessel. The pressing and fixing structure acts on one end of the pressure vessel through lateral pressure to drive the pipeline for the pressure test of the pressure vessel to be butted and sealed on the sealing cone sleeve, so that the hydrostatic test of the pressure vessel can be quickly realized, thereby improving the efficiency of the hydrostatic test of the pressure vessel.

[0014] 2. For a hydrostatic test device for a pressure vessel of the present utility model, by arranging a lifting mechanism, it can simultaneously drive the pressing and fixing structure and the pressure test pump to adjust the height, and cooperate with a pair of container limiting plates arranged in a V-shaped structure to adapt to the support of pressure vessels with various pipe diameters, so that it can be used for the quick connection and test of hydrostatic tests of pressure vessels with various pipe diameters. Description of the Drawings

[0015] To more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary. For those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0017] Figure 2 For the present utility model Figure 1 It is a schematic diagram of the structure without the sliding support assembly and the explosion-proof observation cover.

[0018] Figure 3 It is a schematic diagram of the lifting mechanism, the pressing and fixing structure and the pressure test pump of the present utility model.

[0019] Figure 4 It is a schematic diagram of the sliding support assembly and the explosion-proof observation cover of the present utility model.

[0020] The reference numerals are: 1, test bench; 2, water collecting tank; 3, container limiting plate; 4, lifting mechanism; 41, hydraulic device I; 42, lifting frame; 5, pressing and fixing structure; 51, support frame; 52, hydraulic device II; 53, pressing plate; 6, pressure test pump; 7, sealing cone sleeve; 8, explosion-proof observation cover; 9, drain pipe; 10, telescopic rod; 11, sliding support assembly; 111, slide rail; 112, slide seat. Specific embodiments

[0021] The following specific embodiments illustrate the embodiments of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0022] With reference to Figures 1-4, the present utility model provides a hydrostatic test device for a pressure vessel, which includes a test bench 1. A water collecting tank 2 is opened on the upper surface of the test bench 1. The water collecting tank 2 can be used to collect the water splashed out when the pressure vessel cracks. A pair of container limiting plates 3 for placing the pressure vessel are fixedly installed on the upper surface of the test bench 1. The pair of container limiting plates 3 form a V-shaped structure, and the pair of container limiting plates 3 can support the hydrostatic test of tubular pressure vessels with various pipe diameters. A lifting mechanism 4 is arranged inside the test bench 1. A pressing and fixing structure 5 and a pressure test pump 6 are arranged on the lifting mechanism 4. Both the pressing and fixing structure 5 and the pressure test pump 6 are arranged at the upper surface position of the test bench 1. The pressing and fixing structure 5 is used to press and fix the pressure vessel arranged on the pair of container limiting plates 3. The pressing direction of the pressing and fixing structure 5 is horizontal pressing. The output end of the pressure test pump 6 is fixedly connected with a sealing cone sleeve 7. The pressing and fixing structure 5 pushes the pressure vessel to dock the test pipeline of the pressure vessel with the sealing cone sleeve 7. The sealing cone sleeve 7 is used to abut against the pressure test pipeline of the pressure vessel. The sealing cone sleeve 7 is arranged in a hollow structure so that the pressure test pump 6 can apply water pressure to the pressure vessel through the sealing cone sleeve 7. An explosion-proof observation cover 8 is slidably connected to the test bench 1. The explosion-proof observation cover 8 has explosion-proof performance and is convenient for observing the pressure vessel during the hydrostatic test. The explosion-proof observation cover 8 is located outside the container limiting plates 3.

[0023] A drain pipe 9 is fixedly penetrated through the side surface of the test bench 1. One end of the drain pipe 9 is communicated with the water collecting tank 2. A valve can be arranged on the drain pipe 9. The drain pipe 9 is used to discharge the water collected in the water collecting tank 2.

[0024] A drainage gap is reserved between the pair of container limiting plates 3. The drainage gap is used to discharge the water that can splash when the pressure vessel cracks.

[0025] The lifting mechanism 4 includes a hydraulic device 41 fixedly connected inside the test bench 1 and a lifting frame 42 fixedly connected to the output end of the hydraulic device 41. Both ends of the lifting frame 42 are movably penetrated to the upper surface position of the test bench 1. The pressure test pump 6 is fixedly connected to one end of the lifting frame 42. The hydraulic device 41 can use a hydraulic cylinder to provide telescopic power. The telescopic movement of the hydraulic device 41 can drive the lifting frame 42 to adjust the height. Then, the pressing and fixing structure 5 and the pressure test pump 6 based on the lifting frame 42 can change the height, so as to adapt to the pressing and docking of pressure vessels with different pipe diameters arranged on the pair of container limiting plates 3.

[0026] A pair of telescopic rods 10 are fixedly connected to the test bench 1 and the lifting frame 42. The telescopic rods 10 adopt a sleeve telescopic structure. When the lifting frame 42 moves up and down, the telescopic rods 10 can provide a supporting and guiding effect for the lifting frame 42, so as to ensure the lifting stability.

[0027] The pressing and fixing structure 5 includes a support frame 51 fixedly connected to the other end of the lifting frame 42, a second hydraulic device 52 fixedly connected to one end of the support frame 51, and a pressing plate 53 fixedly connected to the output end of the second hydraulic device 52. The pressing plate 53 is used for pressing and fixing one end of the pressure vessel, and the second hydraulic device 52 also uses a hydraulic cylinder.

[0028] Specifically, by placing the pressure vessel on a pair of container limiting plates 3, then the second hydraulic device 52 can be controlled to drive the pressing plate 53 to extend and move. The pressing plate 53 is used to push the pressure vessel to move towards the sealing cone sleeve 7 until the sealing cone sleeve 7 is tightly connected to the water pressure test pipeline of the pressure vessel. Then, the pressure vessel can be subjected to a water pressure test by the pressure test pump 6.

[0029] There are two sliding support components 11 arranged on the test bench 1. The sliding support components 11 include a slide rail 111 fixedly connected to the side of the test bench 1 and a slide seat 112 slidably connected to the slide rail 111. The explosion-proof observation cover 8 is fixedly connected to the slide seat 112, and the explosion-proof observation cover 8 is arranged in a U-shaped structure.

[0030] Specifically, when the pressure vessel is subjected to a water pressure test, at this time, the explosion-proof observation cover 8 can move in the length direction of the test bench 1 by using the slidability of the slide seat 112 on the slide rail 111, and the explosion-proof observation cover 8 is positioned outside the pressure vessel. In this way, when the pressure vessel cracks during the test, it can have a shielding and protection effect. At the same time, when removing or loading the pressure vessel, the explosion-proof observation cover 8 can be moved away from the container limiting plate 3.

Claims

1. A hydraulic pressure test device for a pressure vessel, comprising a test bench (1), characterized in that: The upper surface of the test bench (1) is provided with a water collecting trough (2). A pair of container limit plates (3) for placing a pressure vessel are fixedly mounted on the upper surface of the test bench (1). The pair of container limit plates (3) form a V-shaped structure. A lifting mechanism (4) is arranged inside the test bench (1). A pressing structure (5) and a pressure test pump (6) are arranged on the lifting mechanism (4). The pressing structure (5) and the pressure test pump (6) are both arranged on the upper surface of the test bench (1). The pressing structure (5) is used to press the pressure vessel arranged on the pair of container limit plates (3). The output end of the pressure test pump (6) is fixedly connected to a sealing cone sleeve (7). The sealing cone sleeve (7) is used to abut against the pressure test pipeline of the pressure vessel. An explosion-proof observation cover (8) is slidably connected to the test bench (1). The explosion-proof observation cover (8) is located on the outer side of the container limit plates (3).

2. A hydraulic pressure testing device for a pressure vessel according to claim 1, characterized in that: A drainage pipe (9) is fixedly passed through the side of the test bench (1), and one end of the drainage pipe (9) is connected to the water collecting tank (2).

3. A hydraulic pressure testing device for a pressure vessel according to claim 1, characterized in that: A drainage gap is reserved between the pair of container limiting plates (3).

4. A hydraulic pressure testing device for a pressure vessel according to claim 1, characterized in that: The lifting mechanism (4) comprises a hydraulic device (41) fixedly connected to the inside of the test bench (1) and a lifting frame (42) fixedly connected to the output end of the hydraulic device (41), both ends of the lifting frame (42) are movable and penetrate to the upper surface position of the test bench (1), and the pressure test pump (6) is fixedly connected to one end of the lifting frame (42).

5. A hydraulic pressure testing device for a pressure vessel according to claim 4, characterized in that: A pair of telescopic rods (10) are fixedly connected to the test bench (1) and the lifting frame (42).

6. A hydraulic pressure testing device for a pressure vessel according to claim 4, characterized in that: The pressing structure (5) comprises a support frame (51) fixedly connected to the other end of the lifting frame (42), a second hydraulic device (52) fixedly connected to one end of the support frame (51), and a pressure plate (53) fixedly connected to the output end of the second hydraulic device (52), wherein the pressure plate (53) is used to press and fix one end of the pressure vessel.

7. A hydraulic pressure testing device for a pressure vessel according to claim 1, characterized in that: The test bench (1) is provided with a sliding support assembly (11), the number of the sliding support assemblies (11) being two, the sliding support assembly (11) comprising a slide rail (111) fixedly connected to the side of the test bench (1) and a slide seat (112) slidably connected to the slide rail (111), the explosion-proof observation cover (8) being fixedly connected to the slide seat (112), and the explosion-proof observation cover (8) being arranged in a U-shaped structure.

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