Air tightness detection device for pressure container

Abstract

The utility model discloses a pressure vessel air tightness detection device, which relates to the field of pressure vessel air tightness detection and comprises a water tank with an open top, a water body is contained in the water tank, and fixing plates are fixedly mounted on the inner sides of two end plates of the water tank. A clamping mechanism extending to an inner cavity of the water tank is installed on the outer side of one end plate of the water tank, a rotating mechanism is installed on the outer side of the other end plate of the water tank, the clamping mechanism and the rotating mechanism are used for driving a pressure container to rotate, and three rotating rods are rotatably installed between the two fixing plates; the three rotating rods are distributed at equal intervals in the direction of 180 degrees below the rotating rods. According to the utility model, through the arrangement of the clamping mechanism and the rotating mechanism, the pressure container can rotate in the detection process, each position of the rotating pressure container can pass right above the pressure container in the rotating process, and effective and accurate marking can be carried out under the condition that leakage points exist.

Description

TECHNICAL FIELD

[0001] The utility model relates to the leakproofness detection field of pressure vessel, specifically a pressure vessel air tightness detection device. BACKGROUND

[0002] The pressure vessel is a kind of container for storing high-pressure medium, generally welded by all-steel structure.

[0003] After the production of pressure vessel is completed, the leakproofness of pressure vessel needs to be detected to ensure the leakproofness of pressure vessel, in prior art, pressure vessel filled with gas is generally placed in water body, if pressure vessel has leakage point, air bubble will be generated in water body;

[0004] But for the pressure vessel with large volume, in the detection process, the staff cannot turn over the pressure vessel to rotate, then the leakage point can not be observed in the position, effective marking cannot be carried out, only the existence of leakage point can be judged, and the leakage point cannot be marked, which is inconvenient for rework in later period. UTILITY MODEL CONTENT

[0005] The utility model aims at: in order to solve the problem in the prior art, provide a kind of pressure vessel air tightness detection device.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of pressure vessel air tightness detection device, including the water tank with top open, the inside of the water tank is filled with water body, the inner side of the two end plates of the water tank is fixedly installed with fixed plate, the outer side of one end plate of the water tank is installed with the clamping mechanism extending to the inner chamber of the water tank, the outer side of another end plate of the water tank is installed with rotating mechanism, the clamping mechanism and rotating mechanism are used to drive pressure vessel to rotate, three rotating rods are rotatably installed between the two fixed plates, three rotating rods are equidistantly distributed in the direction of one hundred and eighty degrees below, the inner wall of the water tank is installed with inflation mechanism.

[0007] As a further scheme of the utility model: the rotating mechanism includes rotating shaft from the water tank outside to the water tank inner chamber, the rotating shaft is rotatably connected with the water tank, the one end of the rotating shaft in the water tank inner chamber is fixedly installed with clamping plate, the one end of the rotating shaft outside the water tank is fixedly installed with large pulley, the outer side of the water tank is installed with rotating motor below the rotating shaft through support, the output end of the rotating motor is coaxially fixedly connected with small pulley, the small pulley is drivenly connected with the large pulley through transmission belt.

[0008] As a further scheme of the utility model: the clamping mechanism includes two electric push cylinders installed on the outer side of the water tank, the output end of the electric push cylinder is fixedly installed with a connecting plate, the connecting plate is installed with a push rod arranged in parallel with the electric push cylinder, the end of the push rod away from the connecting plate is fixedly installed with a sliding plate, the center of the sliding plate is rotatably installed with a movable shaft extending into the inner cavity of the water tank, the movable shaft is movably connected with the water tank, one end of the movable shaft in the inner cavity of the water tank is fixedly installed with another clamping plate, and a sealing ring is arranged at the movable connection position of the water tank and the movable shaft.

[0009] As a further scheme of the utility model: the inflation mechanism includes a fixed ring fixedly installed on the inner wall of the water tank, a rotating ring is rotatably installed on the outer periphery of the fixed ring and extends to the inner periphery of the fixed ring, the outer periphery of the rotating ring is annularly open, the inner periphery of the rotating ring is integrally formed with a fixed tube protruding inward, and the inner periphery of the fixed tube is movably connected with a rotating tube threadedly connected with the gas inlet end of the pressure container.

[0010] As a further scheme of the utility model: a sealing element is installed at the connecting position of the piston part of the rotating tube and the fixed tube, and a sealing element is installed at the rotating connection position of the rotating ring and the fixed ring.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. By setting the clamping mechanism and the rotating mechanism, the pressure container can rotate during detection, and the rotating pressure container can pass above each position during rotation, so that the leakage points can be effectively and accurately marked. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model;

[0014] Figure 2 It is an internal structure schematic view of the utility model;

[0015] Figure 3 It is a Figure 2 It is a local enlarged view of A in the middle.

[0016] In the drawing: 1, water tank; 2, fixed plate; 3, rotating rod; 4, pressure container; 5, rotating ring; 6, fixed ring; 7, clamping plate; 8, rotating shaft; 9, movable shaft; 10, large pulley; 11, small pulley; 12, transmission belt; 13, rotating motor; 14, electric push cylinder; 15, connecting plate; 16, push rod; 17, sliding plate; 18, fixed tube; 19, rotating tube. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] Please refer to Figures 1-3 In the embodiments of the utility model, a pressure container air tightness detection device comprises a water tank 1 with an open top, a water body is contained in the inside of the water tank 1, fixed plates 2 are fixedly installed on the inner sides of the two end plates of the water tank 1, a clamping mechanism extending into the inner cavity of the water tank 1 is installed on the outer side of one end plate of the water tank 1, a rotating mechanism is installed on the outer side of the other end plate of the water tank 1, the clamping mechanism and the rotating mechanism are used to drive the rotation of the pressure container 4, three rotating rods 3 are rotatably installed between the two fixed plates 2, the three rotating rods 3 are equidistantly distributed in the direction of 180 degrees below, and an inflation mechanism is installed on the inner wall of the water tank 1.

[0019] In the embodiments, first, the sealing container 4 is placed on the three rotating rods 3 through hoisting equipment and a bandage connected with the hoisting equipment, then the position of the pressure container 4 is adjusted, the inflation mechanism is connected with the gas inlet end of the pressure container 4, the rated gas pressure is input into the inside of the pressure container 4, the valve at the input end is closed after the input is completed, and at this time, one end of the pressure container 4 abuts against the rotating mechanism, after the connection is completed, the water body is input into the inside of the water tank 1 through a water pump and a pipeline connected with the water pump until the water body completely submerges the pressure container 4.

[0020] After the connection is completed, the clamping mechanism is started to clamp the pressure container 4, after the clamping is completed, the rotating mechanism drives the pressure container 4 to slowly rotate through the clamping mechanism, if the pressure container 4 has a leakage point, the high-pressure gas will leak outward through the leakage point to form bubbles, which are convenient to observe, after the bubbles appear, the driving of the rotating mechanism is stopped until the leakage point rotates to the uppermost position with the pressure container 4, and the gas is continuously input through the inflation mechanism, the leakage point position is marked through the continuously leaking exhaust point, and the leakage position can be accurately found out.

[0021] If the pressure container 4 is intact without a leakage point, no bubbles will be generated.

[0022] Please refer to Figure 2The rotating mechanism comprises a rotating shaft 8 which penetrates from the outside of the water tank 1 to the inner cavity of the water tank 1, the rotating shaft 8 is rotationally connected with the water tank 1, one end of the rotating shaft 8 located in the inner cavity of the water tank 1 is fixedly installed with a clamping plate 7, one end of the rotating shaft 8 located outside the water tank 1 is fixedly installed with a large belt pulley 10, a rotating motor 13 is installed on the outside of the water tank 1 below the rotating shaft 8 through a support, the output end of the rotating motor 13 is coaxially fixedly connected with a small belt pulley 11, the small belt pulley 11 is drivingly connected with the large belt pulley 10 through a transmission belt 12, the clamping mechanism comprises two electric push cylinders 14 which are installed on the outside of the water tank 1, the output end of the electric push cylinder 14 is fixedly installed with a connecting plate 15, the connecting plate 15 is installed with a push rod 16 which is arranged in parallel with the electric push cylinder 14, one end of the push rod 16 away from the connecting plate 15 is fixedly installed with a sliding plate 17, the center of the sliding plate 17 is rotationally installed with a movable shaft 9 which extends into the inner cavity of the water tank 1, the movable shaft 9 is movably connected with the water tank 1, one end of the movable shaft 9 located in the inner cavity of the water tank 1 is fixedly installed with another clamping plate 7, and a sealing ring is arranged at the position where the water tank 1 is movably connected with the movable shaft 9.

[0023] In the embodiment, after the pressure container is completely connected with the inflating mechanism, the electric push cylinder 14 is started, the piston rod of the electric push cylinder 14 is retracted inward, the electric push cylinder 14 drives the push rod 16 to move synchronously through the connecting plate 15, the movable shaft 9 is moved synchronously by the moving push rod 16, and the movable shaft 9 drives another clamping plate 7 connected therewith to clamp the other end of the pressure container 4. Since the other end of the pressure container 4 abuts against the clamping plate 7 connected with the rotating mechanism after being placed, the position of the pressure container 4 does not change during clamping, that is, the position of the inflating mechanism does not change.

[0024] After the pressure container 4 is clamped, the rotating motor 13 is started, the rotating motor 13 drives the small belt pulley 11 to rotate, the small belt pulley 11 drives the large belt pulley 10 to rotate through the transmission belt 12, the rotating large belt pulley 10 drives the clamping plate 7 connected with the rotating shaft 8 to rotate through the rotating shaft 8, the clamping plate 7 drives the pressure container 4 to rotate when cooperating with another clamping plate 7 during rotation, at this time, the three rotating rods 3 rotate under the friction force, which can effectively reduce the friction force of the pressure container 4 during rotation, so that different positions of the pressure container 4 are in a convenient observation position during rotation, and the leakage point can be better found.

[0025] Please pay attention to Figure 1 , Figure 2 and Figure 3The inflating mechanism comprises a fixed ring 6 fixedly installed on the inner wall of the water tank 1, a rotating ring 5 rotatably installed on the outer periphery of the fixed ring 6 and extending to the inner periphery of the fixed ring 6, the outer periphery of the rotating ring 5 being annularly open, and a fixed tube 18 integrally formed on the inner periphery of the rotating ring 5 and protruding inwardly, and the inner periphery of the fixed tube 18 movably connected with a rotating tube 19 threadedly connected with the gas inlet end of the pressure container 4.

[0026] In the embodiment, after the pressure container 4 is placed, the outer wall of the rotating tube 19 is threadedly connected with the gas inlet pipe of the pressure container 4, and in the process of the threadedly connection, the rotating tube 19 is screwed downward, and at this time, the piston part of the rotating tube 19 rotates and moves downward on the inner wall of the fixed tube 18.

[0027] When the pressure container 4 rotates, at this time, the pressure container 4 drives the rotating ring 5 to rotate on the inner periphery of the fixed ring 6 through the rotating tube 19 and the fixed tube 18.

[0028] When inflating, the air pump inputs the gas into the inner cavity of the rotating ring 5 through the pipeline, and the gas is delivered into the pressure container 4 through the fixed tube 18 and the rotating tube 19, so that when the bubble appears due to the presence of the leakage point, the gas can be continuously inputted to ensure the continuous appearance of the bubble, so that the staff can mark the position of the leakage point.

[0029] Please refer to Figure 3 The piston part of the rotating tube 19 is provided with a sealing element at the connecting position with the fixed tube 18, and the rotating ring 5 is provided with a sealing element at the rotating connecting position with the fixed ring 6.

[0030] In the embodiment, the design of the sealing element can ensure the sealing performance of the device in the detection process, and avoid the appearance of the bubble due to the gas leakage at the connecting position.

[0031] The above only describes the preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A pressure vessel airtightness testing device, comprising a water tank (1) with an open top, the water tank (1) containing water, and fixing plates (2) fixedly installed on the inner sides of the two end plates of the water tank (1), characterized in that, A clamping mechanism extending into the inner cavity of the water tank (1) is installed on the outer side of one end plate of the water tank (1), and a rotating mechanism is installed on the outer side of the other end plate of the water tank (1). The clamping mechanism and the rotating mechanism are used to drive the pressure vessel (4) to rotate. Three rotating rods (3) are rotatably installed between the two fixed plates (2). The three rotating rods (3) are equidistantly distributed in the 180-degree direction below. An air inflation mechanism is installed on the inner wall of the water tank (1).

2. The pressure vessel airtightness testing device according to claim 1, characterized in that, The rotating mechanism includes a rotating shaft (8) extending from the outside of the water tank (1) into the inner cavity of the water tank (1). The rotating shaft (8) is rotatably connected to the water tank (1). A clamping plate (7) is fixedly installed at one end of the rotating shaft (8) located in the inner cavity of the water tank (1). A large pulley (10) is fixedly installed at one end of the rotating shaft (8) located outside the water tank (1). A rotating motor (13) is mounted on the outside of the water tank (1) below the rotating shaft (8) via a bracket. A small pulley (11) is coaxially fixedly connected to the output end of the rotating motor (13). The small pulley (11) and the large pulley (10) are connected by a transmission belt (12).

3. The pressure vessel airtightness testing device according to claim 2, characterized in that, The clamping mechanism includes two electric push cylinders (14) installed on the outside of the water tank (1). A connecting plate (15) is fixedly installed on the output end of the electric push cylinder (14). A push rod (16) is installed on the connecting plate (15) and is parallel to the electric push cylinder (14). A sliding plate (17) is fixedly installed at the end of the push rod (16) away from the connecting plate (15). A movable shaft (9) extending into the inner cavity of the water tank (1) is rotatably installed at the center of the sliding plate (17). The movable shaft (9) is movably connected to the water tank (1). Another clamping plate (7) is fixedly installed at the end of the movable shaft (9) located in the inner cavity of the water tank (1). A sealing ring is provided at the position where the water tank (1) is movably connected to the movable shaft (9).

4. The pressure vessel airtightness testing device according to claim 3, characterized in that, The inflation mechanism includes a fixed ring (6) fixedly installed on the inner wall of the water tank (1). A rotating ring (5) extending to the inner circumference of the fixed ring (6) is rotatably installed on the outer circumference of the fixed ring (6). The outer circumference of the rotating ring (5) is annularly open. A fixed tube (18) protruding inward is integrally formed on the inner circumference of the rotating ring (5). A rotating tube (19) threadedly connected to the air inlet end of the pressure vessel (4) is movably connected to the inner circumference of the fixed tube (18).

5. The pressure vessel airtightness testing device according to claim 4, characterized in that, A seal is installed at the connection position between the piston part of the rotating tube (19) and the fixed tube (18), and a seal is installed at the rotatable connection position between the rotating ring (5) and the fixed ring (6).

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