Sealing detection device for pressure vessel

Abstract

A sealing detection device for a pressure container comprises a base, a water tank fixedly installed on the upper surface of the base, a water outlet pipe embedded in one side of the water tank, a support fixedly installed on the upper surface of the base, a top plate fixedly installed at the upper end of the support, an electric push rod fixedly installed on the lower surface of the top plate and a movable frame assembly fixedly installed at the output end of the electric push rod. A fixing frame assembly is fixedly installed in the movable frame assembly, and a sealing block is placed at the bottom of the fixing frame assembly. According to the device, the pressure container is fixed to the sealing block, the movable frame assembly is pushed by the electric push rod to drive the fixing frame assembly to descend, at the moment, the sealing block moves upwards to the lower end of the upper fixing block due to buoyancy and stops moving, and the bottle body part of the pressure container does not shake left and right due to limiting of the baffle; the device is slowly submerged below the water surface in the vertical direction in a fixed mode, the time for waiting for the pressure container to be stable to observable is saved, the specific air leakage place can be confirmed, and the device is worthy of popularization.

Description

Technical Field

[0001] The utility model relates to the field of sealing detection devices, in particular to a sealing detection device for a pressure vessel. Background Art

[0002] Pressure vessels are closed devices used to contain gases and liquids and bear a certain pressure. They are mainly used for heat transfer, mass transfer, reaction, etc., and are widely used in industrial, civil, military and scientific research fields. When in use, pressure vessels are under high pressure in most cases, so sealing detection of pressure vessels is an indispensable link.

[0003] However, when measuring air tightness by the immersion method, the pressure vessel will not be very stable during the downward pressure process due to excessive buoyancy. It is necessary to wait until it stabilizes before observation, which prolongs the time for observing air tightness. Moreover, if a pressure plate is used to press the pressure vessel below the water surface, although the air tightness of the pressure vessel can be judged by bubbles, it is impossible to find the specific leak in the pressure vessel, which will cause trouble for subsequent maintenance and treatment. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art that when the pressure vessel is tested for sealing by the immersion method, it is easy to be unable to be tested quickly and smoothly due to excessive buoyancy, and it is still unknown where the leak occurs when bubbles appear. A sealing detection device for a pressure vessel is proposed to solve the shortcomings in the prior art that when the pressure vessel is tested for sealing by the immersion method, it is easy to be unable to be tested quickly and smoothly due to excessive buoyancy, and it is still difficult to know where the leak occurs.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a sealing detection device for a pressure vessel, comprising a base, a water tank fixedly mounted on the upper surface of the base, a water outlet pipe embedded in one side of the water tank, a bracket fixedly mounted on the upper surface of the base, a top plate fixedly mounted on the upper end of the bracket, an electric push rod fixedly mounted on the lower surface of the top plate, a movable frame assembly fixedly mounted on the output end of the electric push rod, the movable frame assembly corresponding to the water tank, a fixed frame assembly fixedly mounted inside the movable frame assembly, and a sealing block placed at the bottom of the fixed frame assembly;

[0006] The fixing frame assembly includes a frame embedded in the movable frame assembly, a baffle fixedly installed on the outer surface of the frame, an upper fixing block and a lower fixing block fixedly installed inside the frame, the upper fixing block and the lower fixing block are on the same vertical line, and the sealing block is in contact with the upper surface of the lower fixing block.

[0007] Preferably, the movable frame assembly includes an upper fixed plate fixedly mounted on the output end of the electric push rod, a side fixed plate fixedly mounted on the lower surface of the upper fixed plate, a fixed rod fixedly mounted on the lower end of the side fixed plate, and the frame is fixedly connected to the fixed rod.

[0008] Preferably, a hole A is provided on the upper surface of the upper fixing plate.

[0009] Preferably, a groove is provided on the inner wall of the water tank, the groove corresponds to the side fixing plate, and the movable frame assembly is slidably connected to the water tank through the groove.

[0010] Preferably, four groups of upper fixing blocks and lower fixing blocks are provided, and each group of upper fixing blocks and lower fixing blocks are fixedly installed at four corners inside the frame, and the sealing block is located between the upper fixing blocks and the lower fixing blocks.

[0011] Preferably, a hole B is provided on the upper surface of the sealing block, a rubber ring is fixedly installed inside the hole B, and the bottle mouth of the pressure container is inserted into the rubber ring.

[0012] The utility model has the following beneficial effects:

[0013] 1. In the utility model, during operation, the pressure vessel is fixed on the sealing block, and the movable frame assembly is pushed down by starting the electric push rod, driving the fixed frame assembly to descend. During the descent, the sealing block will move upward due to buoyancy, and the sealing block will move to the lower end of the upper fixed block and stop moving. The bottle body of the pressure vessel will no longer shake left and right due to the limitation of the baffle, and there is also a gap between the bottom of the bottle body and the upper fixed plate, which is convenient for observing whether there are bubbles, saving the observation process time. After the observation is completed, the sealing block will return to the upper surface of the lower fixed plate again due to the buoyancy of being out of the water during the rising process of the device, and the pressure device can be better used for secondary detection.

[0014] 2. In the present invention, the device adopts a method of fixing the pressure vessel, and continuously enters the water tank in a vertical direction until it is submerged below the water surface. If there is a leak in the pressure vessel, the location of the leak can be determined in time, and subsequent container maintenance work can be carried out more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure proposed by the utility model;

[0016] Figure 2 It is a schematic diagram of the local structure proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the water tank structure proposed by the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the fixing frame assembly proposed in the present utility model;

[0019] Figure 5 This is a schematic diagram of the sealing block structure proposed by the utility model.

[0020] Legend: 1. Water tank; 11. Groove; 2. Base; 3. Water outlet pipe; 4. Bracket; 5. Top plate; 6. Movable frame assembly; 61. Upper fixing plate; 62. Side fixing plate; 63. Fixing rod; 64. Hole A; 7. Pressure vessel; 8. Fixing frame assembly; 81. Frame; 82. Baffle; 83. Upper fixing block; 84. Lower fixing block; 9. Sealing block; 91. Rubber ring; 92. Hole B; 10. Electric push rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Reference Figure 1-Figure 5, the utility model provides an embodiment: a sealing detection device for a pressure vessel, comprising a base 2, a water tank 1 fixedly mounted on the upper surface of the base 2, a water outlet pipe 3 embedded on one side of the water tank 1, a bracket 4 fixedly mounted on the upper surface of the base 2, a top plate 5 fixedly mounted on the upper end of the bracket 4, an electric push rod 10 fixedly mounted on the lower surface of the top plate 5, a movable frame assembly 6 fixedly mounted on the output end of the electric push rod 10, the movable frame assembly 6 corresponds to the water tank 1, a fixed frame assembly 8 is fixedly mounted inside the movable frame assembly 6, a sealing block 9 is placed at the bottom of the fixed frame assembly 8, the fixed frame assembly 8 includes a frame 81 embedded in the inside of the movable frame assembly 6, a baffle 82 fixedly mounted on the outer surface of the frame 81, and a baffle 82 fixedly mounted inside the frame 81 The upper fixed block 83 and the lower fixed block 84 are on the same vertical line, and the sealing block 9 is in contact with the upper surface of the lower fixed block 84. During operation, the box body 1 is a component made of glass material, which is convenient for observing the airtightness of the pressure vessel 7. The pressure vessel 7 is fixed on the sealing block 9. By starting the electric push rod 10 to push the movable frame assembly 6 down, the movable frame assembly 6 drives the fixed frame assembly 8 down. During the descent, the sealing block 9 will move upward due to buoyancy, and the sealing block 9 moves to the lower end of the upper fixed block 83 to stop moving. The bottle body of the pressure vessel 7 will no longer swing left and right due to the limit of the baffle, and there is also a gap between the bottom of the bottle body and the upper fixed plate 61, which is convenient for observing whether bubbles are generated.

[0024] The movable frame assembly 6 includes an upper fixed plate 61 fixedly mounted on the output end of the electric push rod 10 , a side fixed plate 62 fixedly mounted on the lower surface of the upper fixed plate 61 , a fixed rod 63 fixedly mounted on the lower end of the side fixed plate 62 , and the frame 81 is fixedly connected to the fixed rod 63 .

[0025] The upper surface of the upper fixing plate 61 is provided with holes A64 to reduce the resistance encountered during the lowering process when a horizontal plate is used as the upper fixing plate 61, and water can pass through the holes A64 from bottom to top.

[0026] A groove 11 is provided on the inner wall of the water tank 1 , and the groove 11 corresponds to the side fixing plate 62 . The movable frame assembly 6 is slidably connected to the water tank 1 via the groove 11 .

[0027] There are four groups of upper fixing blocks 83 and lower fixing blocks 84 . Each group of upper fixing blocks 83 and lower fixing blocks 84 is fixedly installed at the four corners inside the frame 81 , and the sealing block 9 is located between the upper fixing blocks 83 and the lower fixing blocks 84 .

[0028] A hole B92 is provided on the upper surface of the sealing block 9, and a rubber ring 91 is fixedly installed inside the hole B92. The bottle mouth of the pressure vessel 7 is inserted into the rubber ring 91. During operation, the rubber ring 91 on the sealing block 9 can seal and fix the bottle mouth part of the pressure vessel 7.

[0029] Working principle: During operation, the water tank 1 is made of glass, which is convenient for observing the air tightness of the pressure vessel 7. The pressure vessel 7 is fixed on the sealing block 9. By starting the electric push rod 10, the movable frame assembly 6 is pushed down until it is submerged in the water. The movable frame assembly 6 drives the fixed frame assembly 8 down. During the descent, the sealing block 9 will move upward due to buoyancy, and the sealing block 9 moves to the lower end of the upper fixed block 83 and stops moving. The bottle body of the pressure vessel 7 will no longer shake left and right due to the limitation of the baffle 82, and there is a gap between the bottom of the bottle body and the upper fixed plate 61, which is convenient for observing whether there are bubbles. After the observation is completed, the sealing block 9 will return to the upper surface of the lower fixed plate 94 again due to the buoyancy of being out of the water during the rising process of the device, and the pressure device can be better tested again. The device slowly enters below the water surface in a vertical direction, and the specific leakage location can be observed in time.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pressure vessel sealing detection device, comprising a base (2), a water tank (1) fixedly mounted on the upper surface of the base (2), a water outlet pipe (3) embedded in one side of the water tank (1), a bracket (4) fixedly mounted on the upper surface of the base (2), a top plate (5) fixedly mounted on the upper end of the bracket (4), and an electric push rod (10) fixedly mounted on the lower surface of the top plate (5), characterized in that: A movable frame assembly (6) is fixedly installed at the output end of the electric push rod (10), the movable frame assembly (6) corresponds to the water tank (1), a fixed frame assembly (8) is fixedly installed inside the movable frame assembly (6), and a sealing block (9) is placed at the bottom of the fixed frame assembly (8); The fixing frame assembly (8) comprises a frame (81) embedded in the movable frame assembly (6), a baffle (82) fixedly mounted on the outer surface of the frame (81), an upper fixing block (83) and a lower fixing block (84) fixedly mounted inside the frame (81), the upper fixing block (83) and the lower fixing block (84) being on the same vertical line, and the sealing block (9) being in contact with the upper surface of the lower fixing block (84).

2. The pressure vessel sealing detection device according to claim 1, characterized in that: The movable frame assembly (6) comprises an upper fixed plate (61) fixedly mounted on the output end of the electric push rod (10), a side fixed plate (62) fixedly mounted on the lower surface of the upper fixed plate (61), a fixed rod (63) fixedly mounted on the lower end of the side fixed plate (62), and a frame (81) fixedly connected to the fixed rod (63).

3. The pressure vessel sealing detection device according to claim 2, characterized in that: The upper surface of the upper fixing plate (61) is provided with a hole A (64).

4. The pressure vessel sealing detection device according to claim 1, characterized in that: The inner wall of the water tank (1) is provided with a groove (11), the groove (11) corresponds to the side fixing plate (62), and the movable frame assembly (6) is slidably connected to the water tank (1) via the groove (11).

5. The pressure vessel sealing detection device according to claim 1, characterized in that: The upper fixing blocks (83) and the lower fixing blocks (84) are each provided in four groups, and each group of the upper fixing blocks (83) and the lower fixing blocks (84) are respectively fixedly mounted at the four corners inside the frame (81), and the sealing block (9) is located between the upper fixing blocks (83) and the lower fixing blocks (84).

6. The pressure vessel sealing detection device according to claim 5, characterized in that: The upper surface of the sealing block (9) is provided with a hole B (92), a rubber ring (91) is fixedly installed inside the hole B (92), and the bottle mouth of the pressure container (7) is inserted into the rubber ring (91).

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