Pressure vessel leakage detection device

Abstract

The utility model relates to a pressure vessel leakage detection device which comprises a rack, a fixed clamping seat, a linear guide rail, an air cylinder supporting seat and an air cylinder installation seat are sequentially installed at the top end of the rack, a rubber plug is installed on the front face of the fixed clamping seat, and a supporting pipe is sleeved with the rubber plug. The supporting pipe is connected with the fixed clamping seat through a distance-adjustable supporting frame, a vent hole is formed in the side wall of the head of the supporting pipe, a branch air pipe is fixedly connected to the side wall of the tail of the supporting pipe, and a barometer is installed on the branch air pipe; a movable platform is mounted on the linear guide rail, and a pressure container bracket and a movable clamping seat are mounted on the movable platform; telescopic cylinders are mounted on the cylinder supporting seats and the cylinder mounting seats; and the tail ends of piston rods of the telescopic cylinders are connected with the back surfaces of the movable clamping seats. The clamping device has the advantages that the head of the supporting pipe extends into the pressure container to play a role in supporting and limiting, and pressure is prevented from being easily extruded and deformed by the fixed clamping seat and the movable clamping seat.

Description

Technical Field

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

[0002] Pressure vessel leakage detection is a necessary inspection item for pressure vessels and is of great significance to ensuring the normal use of pressure vessels. In order to adapt to pressure detection of different opening sizes, existing pressure vessel leakage detection devices adopt a clamping method from both ends of the pressure vessel. This clamping method is prone to cause the side wall of the pressure vessel to become concave or convex due to excessive clamping force, causing the pressure vessel to deform. Utility Model Content

[0003] The purpose of the utility model is to overcome the above problems existing in the prior art and provide a pressure vessel leakage detection device.

[0004] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0005] A pressure vessel leakage detection device comprises a rectangular frame, wherein a fixed clamping seat, a linear guide rail, a cylinder support seat and a cylinder mounting seat are sequentially mounted on the top of the frame.

[0006] A rubber plug for sealing the port of the pressure vessel is installed on the front of the fixed clamping seat, a support tube is sleeved in the rubber plug, the support tube is connected to the fixed clamping seat through a distance-adjustable support frame, a vent hole connected to the internal cavity of the support tube is arranged on the side wall of the head of the support tube, a bronchial tube connected to the inside of the support tube is fixedly connected to the side wall of the tail of the support tube, a pressure gauge is installed on the bronchial tube, a first valve for controlling the on and off of the support tube is installed at the tail end of the support tube, a three-way joint is installed at the end of the first valve away from the support tube, the No. 2 interface of the three-way joint is connected to an air compressor through a pipeline, and a second valve is installed on the No. 3 interface of the three-way joint;

[0007] A movable platform is installed on the linear guide rail, and a height-adjustable pressure vessel bracket and a movable clamping seat for clamping the outer bottom of the pressure vessel are installed on the movable platform, and the pressure vessel bracket is located between the fixed clamping seat and the movable clamping seat;

[0008] A telescopic cylinder is installed on the cylinder support seat and the cylinder mounting seat, and the end of the piston rod of the telescopic cylinder is connected to the back side of the movable clamping seat.

[0009] Among them, the distance-adjustable support frame includes a support ring fixedly connected to the support tube, three first screws arranged in a circular array, the head end of the first screw is vertically fixed to the back of the fixed clamping seat, and three first circular holes arranged in a circular array are opened on the support ring, and a first screw is sleeved in each first circular hole. A front anti-loosening nut and a rear anti-loosening nut are screwed on the first screw, and the support ring is clamped between the front anti-loosening nut and the rear anti-loosening nut.

[0010] Among them, the pressure vessel bracket includes a support plate with an arc-shaped groove in the middle, four second screws arranged in a rectangular array and a reinforcing rib perpendicular to the bottom end of the support plate are fixed to the bottom end of the support plate, and four second circular holes arranged in a rectangular array are opened on the movable platform, and a second screw is sleeved in each of the second circular holes, and an upper anti-loosening nut and a lower anti-loosening nut are screwed on each of the second screws, and the movable platform is clamped between the upper anti-loosening nut and the lower anti-loosening nut.

[0011] Wherein, a circular rubber pad is installed on the front side of the movable clamping seat.

[0012] Wherein, a rubber pad is installed at the end of the support tube head.

[0013] Wherein, a sealing plate is fixedly connected between the rubber pad and the vent hole in the support tube to separate the internal space of the support tube.

[0014] Wherein, a plurality of height-adjustable foot cups arranged in a rectangular array are installed at the bottom end of the frame.

[0015] The beneficial effects of the utility model are as follows: a support tube is installed in the rubber plug, the support tube is connected to the fixed plug with a distance-adjustable bracket, the head of the support tube is extended into the pressure vessel to play a supporting and limiting role, and the pressure is prevented from being easily squeezed and deformed by the fixed clamping seat and the movable clamping seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a structural schematic diagram of a partial structure of a pressure vessel leakage detection device in the utility model from a first viewing angle;

[0018] Figure 2 It is a structural schematic diagram of a partial structure of a pressure vessel leakage detection device in the utility model from a second viewing angle;

[0019] Figure 3It is a structural schematic diagram of the first-view after the fixed clamping seat, the support tube, the rubber plug, the distance-adjustable support frame, the first valve, the second valve, the three-way joint, and the pressure gauge in the utility model are assembled;

[0020] Figure 4 It is a structural schematic diagram of the second viewing angle after the fixed clamping seat, the support tube, the rubber plug, the distance-adjustable support frame, the first valve, the second valve, the three-way joint, and the pressure gauge in the utility model are assembled;

[0021] Figure 5 It is a cutaway view of the support pipe in the utility model;

[0022] Figure 6 It is a structural schematic diagram of the first-view after the mobile platform, pressure vessel bracket and movable clamping seat in the utility model are assembled;

[0023] Figure 7 It is a structural schematic diagram of the second viewing angle after the mobile platform, pressure vessel bracket and movable clamping seat in the utility model are assembled;

[0024] Figure 8 It is a structural schematic diagram of the mobile platform in the utility model;

[0025] Explanation of the numbers in the figure: frame 1, height adjustment foot cup 2, fixed clamping seat 3, linear guide 4, cylinder support seat 5, cylinder mounting seat 6, rubber plug 7, support tube 8, vent 9, rubber pad 10, sealing plate 11, bronchial tube 12, barometer 13, first valve 14, three-way joint 15, second valve 16, supporting ring 17, first screw 18, first circular hole 19, front anti-loosening nut 20, rear anti-loosening nut 21, moving platform 22, pressure vessel bracket 23, movable clamping seat 24, rubber pad 25, support plate 26, second screw 27, reinforcing rib 28, second circular hole 29, upper anti-loosening nut 30, lower anti-loosening nut 31, telescopic cylinder 32. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0027] like Figures 1 to 8 As shown, a pressure vessel leakage detection device includes a rectangular frame 1, a plurality of height-adjusting foot cups 2 arranged in a rectangular array are installed at the bottom end of the frame 1, and a fixed clamping seat 3, a linear guide 4, a cylinder support seat 5, and a cylinder mounting seat 6 are installed in sequence at the top end of the frame 1.

[0028] A rubber plug 7 for sealing the port of the pressure vessel is installed on the front of the fixed clamping seat 3, a support tube 8 is sleeved in the rubber plug 7, a vent hole 9 connected to the internal cavity of the support tube 8 is arranged on the side wall of the head of the support tube 8, a rubber pad 10 is installed at the end of the head of the support tube 8, and a sealing plate 11 is fixedly connected between the rubber pad 10 and the vent hole 9 in the support tube 8 to separate the internal space of the support tube 8; a bronchial tube 12 connected to the inside of the support tube 8 is fixedly connected to the side wall of the tail end of the support tube 8, a pressure gauge 13 is installed on the bronchial tube 12, a first valve 14 for controlling the on and off of the support tube 8 is installed at the tail end of the support tube 8, a three-way joint 15 is installed at the end of the first valve 14 away from the support tube 8, the No. 2 interface of the three-way joint 15 is connected to an air compressor through a pipeline, and a second valve 16 is installed on the No. 3 interface of the three-way joint 15.

[0029] The support tube 8 is connected to the fixed clamping seat 3 through a distance-adjustable support frame, which includes a support ring 17 fixedly connected to the support tube 8, and three first screws 18 arranged in a circular array. The head end of the first screw 18 is vertically fixed to the back of the fixed clamping seat 3. Three first circular holes 19 arranged in a circular array are opened on the support ring 17, and a first screw 18 is sleeved in each first circular hole 19. A front anti-loosening nut 20 and a rear anti-loosening nut 21 are screwed on the first screw 18, and the support ring 17 is clamped between the front anti-loosening nut 20 and the rear anti-loosening nut 21.

[0030] A movable platform 22 is installed on the linear guide rail 4, and a height-adjustable pressure vessel bracket 23 and a movable clamping seat 24 for clamping the outer bottom of the pressure vessel are installed on the movable platform 22. The pressure vessel bracket 23 is located between the fixed clamping seat 3 and the movable clamping seat 24; a circular rubber pad 25 is installed on the front of the movable clamping seat 24, and the rubber pad 25 plays a buffering and isolating role between the outer bottom of the pressure vessel and the movable clamping seat 24, so as to prevent the movable clamping seat 24 from colliding with the outer bottom of the pressure vessel when moving.

[0031] The pressure vessel bracket 23 includes a support plate 26 with an arc-shaped groove in the middle, and four second screws 27 arranged in a rectangular array and a reinforcing rib 28 perpendicular to the bottom end of the support plate 26 are fixed to the bottom end of the support plate 26. Four second circular holes 29 arranged in a rectangular array are opened on the mobile platform 22, and a second screw 27 is sleeved in each second circular hole 29. An upper anti-loosening nut 30 and a lower anti-loosening nut 31 are screwed on each second screw 27, and the mobile platform 22 is clamped between the upper anti-loosening nut 30 and the lower anti-loosening nut 31.

[0032] A telescopic cylinder 32 is installed on the cylinder support seat 5 and the cylinder mounting seat 6 , and the end of the piston rod of the telescopic cylinder 32 is connected to the back side of the movable clamping seat 24 .

[0033] Working process:

[0034] 1. Turn the front anti-loosening nut and the rear anti-loosening nut to adjust the length of the support tube between the fixed clamping seat and the movable clamping seat, so that when the pressure vessel port abuts against the rubber plug, the rubber pad just abuts against the inner bottom of the pressure vessel;

[0035] 2. The telescopic cylinder contracts, and the pressure vessel is laid flat on the pressure vessel bracket, so that the outer bottom of the pressure vessel contacts the rubber pad on the front of the movable clamping seat;

[0036] 3. Extend the telescopic cylinder and push the pressure vessel toward the fixed clamping seat, so that the pressure vessel is clamped between the fixed clamping seat and the movable clamping seat, and ensure that the rubber plug blocks the pressure vessel port;

[0037] 4. Keep the second valve closed, open the first valve and the air compressor to pressurize the gas into the pressure vessel. When the gas pressure in the pressure vessel reaches the predetermined pressure value, close the first valve and the air compressor, and observe whether the pressure value on the pressure gauge changes. If the pressure value does not change, the pressure vessel has no leakage. If the pressure value decreases, the pressure vessel has a leakage point and further investigation is required.

[0038] 5. After the pressure vessel has completed the leak detection, open the first valve and the second valve to discharge the gas in the pressure vessel.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A pressure vessel leakage detection device, characterized in that: The machine comprises a rectangular frame, on the top of which a fixed clamping seat, a linear guide rail, a cylinder support seat and a cylinder mounting seat are sequentially installed. A rubber plug for sealing the port of the pressure vessel is installed on the front of the fixed clamping seat, a support tube is sleeved in the rubber plug, the support tube is connected to the fixed clamping seat through a distance-adjustable support frame, a vent hole connected to the internal cavity of the support tube is arranged on the side wall of the head of the support tube, a bronchial tube connected to the inside of the support tube is fixedly connected to the side wall of the tail of the support tube, a pressure gauge is installed on the bronchial tube, a first valve for controlling the on and off of the support tube is installed at the tail end of the support tube, a three-way joint is installed at the end of the first valve away from the support tube, the No. 2 interface of the three-way joint is connected to an air compressor through a pipeline, and a second valve is installed on the No. 3 interface of the three-way joint; A movable platform is installed on the linear guide rail, and a height-adjustable pressure vessel bracket and a movable clamping seat for clamping the outer bottom of the pressure vessel are installed on the movable platform, and the pressure vessel bracket is located between the fixed clamping seat and the movable clamping seat; A telescopic cylinder is installed on the cylinder support seat and the cylinder mounting seat, and the end of the piston rod of the telescopic cylinder is connected to the back side of the movable clamping seat.

2. The pressure vessel leakage detection device according to claim 1, characterized in that: The distance-adjustable support frame includes a support ring fixedly connected to a support tube, three first screw rods arranged in a circular array, the head end of the first screw rod is vertically fixedly connected to the back side of a fixed clamping seat, the support ring is provided with three first circular holes arranged in a circular array, each first circular hole is sleeved with a first screw rod, a front anti-loosening nut and a rear anti-loosening nut are threaded on the first screw rod, and the support ring is clamped between the front anti-loosening nut and the rear anti-loosening nut.

3. The pressure vessel leakage detection device according to claim 1, characterized in that: The pressure vessel bracket includes a support plate with an arc-shaped groove in the middle, four second screws arranged in a rectangular array and a reinforcing rib perpendicular to the bottom end of the support plate are fixed to the bottom end of the support plate, four second circular holes arranged in a rectangular array are opened on the movable platform, a second screw is sleeved in each of the second circular holes, an upper anti-loosening nut and a lower anti-loosening nut are screwed on each of the second screws, and the movable platform is clamped between the upper anti-loosening nut and the lower anti-loosening nut.

4. The pressure vessel leakage detection device according to claim 1, characterized in that: A circular rubber pad is installed on the front of the movable clamping seat.

5. The pressure vessel leakage detection device according to claim 1, characterized in that: A rubber pad is installed at the end of the support tube head.

6. The pressure vessel leakage detection device according to claim 5, characterized in that: A sealing plate is fixedly connected between the rubber pad and the vent hole in the support tube to separate the inner space of the support tube.

7. The pressure vessel leakage detection device according to claim 1, characterized in that: A plurality of height-adjusting foot cups arranged in a rectangular array are installed at the bottom end of the frame.

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