Sealing performance detection device of high-pressure vessel sealing head

Abstract

The utility model discloses a sealing performance detection device for a high-pressure container end socket, and particularly relates to the technical field of end socket detection, which comprises a base part used for bearing the container end socket, a pressing plate capable of moving up and down arranged above the base part, a sealing part used for sealing the container end socket and arranged at the bottom of the pressing plate, and a sealing part used for sealing the container end socket after the container end socket is arranged behind the base part. The sealing piece is inserted into an inner cavity in the top end of the container end socket, the edge of the sealing piece is attached to the inner wall of the container end socket, and a driving piece for driving the pressing plate and the sealing piece to ascend and descend is arranged at the top of the pressing plate. According to the utility model, the movable pressing plate is matched with the plurality of rubber ring pipes to form a relatively sealed space in the container sealing head, and then the pressure data in the space is detected to realize the detection of the sealing performance of the container sealing head, so that the whole operation process is simple, convenient, time-saving and labor-saving, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of head detection, and more specifically, the utility model relates to a sealing detection device for the head of a high-pressure container. Background Technique

[0002] A head refers to a component used to close the end of a container to isolate the internal and external media, also known as an end cover. The heads of cylindrical containers are generally rotary shells. According to the shape of the head surface, they can be divided into convex, conical, flat and combined shapes. The head is an essential component in pressure vessel equipment in many industries such as petrochemical, atomic energy, and food and pharmaceutical. Since the head is the end cover of a pressure vessel and is a main pressure-bearing component of the pressure vessel, which plays a sealing role, its airtightness must be detected before installation. The traditional detection method still relies on simple visual observation by inspectors. However, sometimes the air holes in the head are too small to be observed by the naked eye. Content of the Utility Model

[0003] To solve the above technical problems, the utility model provides a sealing detection device for the head of a high-pressure container, which includes a base member for carrying the head of the container. Above the base member, there is a lifting and movable pressing plate. At the bottom of the pressing plate, there is a sealing member for sealing the head of the container. After the head of the container is placed on the base member, the sealing member is inserted into the inner cavity at the top of the head of the container, and the edge of the sealing member fits on the inner wall of the head of the container. At the top of the pressing plate, there is a driving member for driving the pressing plate and the sealing member to lift and move.

[0004] In a preferred embodiment, the base member includes a workbench and a through hole opened in the middle of the workbench. At the edge of the through hole, there is an upwardly protruding base ring, and the bottom end of the head of the container fits on the surface of the base ring.

[0005] In a preferred embodiment, on the surface of the workbench on both sides of the base ring, there are also installed support frames, and an equipment top plate is connected between the top ends of the support frames. The driving member is installed on the equipment top plate.

[0006] In a preferred embodiment, the driving member includes a hydraulic push rod fixed on the equipment top plate and limiting rods on both sides of the hydraulic push rod. At the bottom end of the limiting rod, there is a lifting and movable limiting tube sleeved, and the bottom end of the limiting tube and the bottom end of the output shaft of the hydraulic push rod are both fixed on the surface of the pressing plate.

[0007] In a preferred embodiment, the sealing member includes a sealing disc fixed at the bottom of the pressing plate. At the edge of the sealing disc, there are embedded several rubber ring tubes, and the inside of the rubber ring tubes is hollow. Inside the sealing disc, there are embedded several air passage channels communicating with the inside of the rubber ring tubes.

[0008] In a preferred embodiment, an air pipe is connected to the other ends of several air passage channels. The air pipe sequentially penetrates through the sealing disc and the pressing plate and extends above the pressing plate, and a movable hose is connected to the top end of the air pipe.

[0009] In a preferred embodiment, a sealing rubber ring is further embedded at the bottom of the pressing plate located at the edge of the sealing disc, and a pressure sensor is also inserted into the pressing plate. The pressure sensor penetrates through the pressing plate and the sealing disc and extends below the sealing disc.

[0010] The technical effects and advantages of the present utility model:

[0011] The present utility model forms a relatively sealed space inside the container head by means of the movable pressing plate cooperating with several rubber ring pipes, and then realizes the detection of the sealing performance of the container head by detecting the pressure data in the space. The whole operation process is simple and convenient, time-saving and labor-saving, and the practicability is improved. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the present utility model during operation;

[0013] Figure 2 is a schematic structural diagram of the whole of the present utility model;

[0014] Figure 3 is a schematic bottom structural diagram of the present utility model;

[0015] Figure 4 is a schematic partially sectional structural diagram of the seal of the present utility model.

[0016] Description of the reference numerals in the drawings: 1 pressing plate, 2 container head, 3 workbench, 4 through hole, 5 base ring, 6 support frame, 7 equipment top plate, 8 hydraulic push rod, 9 limiting rod, 10 limiting tube, 11 sealing disc, 12 rubber ring pipe, 13 air passage channel, 14 air pipe, 15 movable hose, 16 sealing rubber ring, 17 pressure sensor. Detailed Embodiments

[0017] The present utility model will be further described in detail below with reference to the drawings and specific embodiments. The embodiments of the present utility model are given for the purpose of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0018] As Figures 1-4A sealing detection device for the head 2 of a high-pressure vessel as shown, comprising a base member for carrying the vessel head 2, a pressing plate 1 that moves up and down is provided above the base member, a sealing member for sealing the vessel head 2 is installed at the bottom of the pressing plate 1. After the vessel head 2 is placed on the base member, the sealing member is inserted into the inner cavity at the top end of the vessel head 2, and the edge of the sealing member fits against the inner wall of the vessel head 2. A driving member for driving the pressing plate 1 and the sealing member to move up and down is provided at the top of the pressing plate 1.

[0019] Based on the above, during operation, the vessel head 2 to be tested is placed on the base member, and the driving member is used to drive the pressing plate 1 and the sealing member to move downward, so that the sealing member is inserted into the top end of the vessel head 2, and the edge of the sealing member fits against the inner wall of the vessel head 2, realizing the sealing of the internal space of the vessel head 2, which is convenient for subsequent sealing detection.

[0020] The base member includes a workbench 3 and a through hole 4 opened in the middle of the workbench 3. A base ring 5 that protrudes upward is installed at the edge of the through hole 4, and the bottom end of the vessel head 2 fits against the surface of the base ring 5;

[0021] Based on the above, the vessel head 2 is placed inside the base ring 5, and the protruding part at the bottom end of the vessel head 2 is located inside the through hole 4, so that the vessel head 2 can be effectively supported inside the base ring 5.

[0022] Support frames 6 are also installed on the surface of the workbench 3 on both sides of the base ring 5. An equipment top plate 7 is connected between the top ends of the support frames 6. The driving member is installed on the equipment top plate 7. Among them, a control panel 18 is also installed on the outer wall of the support frame 6, and a display screen for displaying pressure data is installed on the control panel 18.

[0023] The driving member includes a hydraulic push rod 8 fixed on the equipment top plate 7 and limit rods 9 located on both sides of the hydraulic push rod 8. A liftable limit tube 10 is sleeved at the bottom end of the limit rod 9, and the bottom end of the limit tube 10 and the bottom end of the output shaft of the hydraulic push rod 8 are both fixed on the surface of the pressing plate 1;

[0024] Based on the above, during operation, the output shaft of the hydraulic push rod 8 is used to move up and down, driving the pressing plate 1 to move up and down above the base member and the vessel head 2, driving the sealing member to move up and down, so that the sealing member can fit tightly against the top of the vessel head 2 to achieve sealing. During the movement of the pressing plate 1, the limit rod 9 moves up and down inside the limit tube 10 to limit the movement of the pressing plate 1.

[0025] The sealing member includes a sealing disk 11 fixed at the bottom of the pressing plate 1. A number of rubber ring tubes 12 are embedded at the edge of the sealing disk 11. The rubber ring tubes 12 are hollow inside, and a number of air passage channels 13 communicating with the inside of the rubber ring tubes 12 are embedded inside the sealing disk 11;

[0026] At the other ends of several gas passageways 13, a trachea 14 is connected. The trachea 14 sequentially penetrates through the sealing disc 11 and the pressing plate 1 and extends above the pressing plate 1. An active hose 15 is connected to the top end of the trachea 14. Among them, the active hose 15 is connected to an external air pump assembly. The rubber ring tube 12 is inflated through the active hose 15 and the trachea 14, so that the rubber ring tube 12 is inflated and bulged.

[0027] Based on the above, during operation, the container head 2 is first placed in the base ring 5. Part of the pressing plate 1 is driven by the hydraulic push rod 8 to press down to the top of the container head 2, so that part of the sealing disc 11 moves into the inner cavity at the top end of the container head 2. Then, through the active hose 15, the trachea 14 and the gas passageways 13, the multiple rubber ring tubes 12 are inflated, so that the rubber ring tubes 12 bulge and tightly fit on the inner wall of the container head 2, filling the gap between the container head 2 and the sealing disc 11, and realizing the sealing inside the container head 2.

[0028] Further, when the hydraulic push rod 8 drives the pressing plate 1 to move down and act on the top end of the container head 2, the top end of the container head 2 will be pressurized to correct the position of the container head 2 in the base ring 5, and the top end of the container head 2 can be flatly attached to the bottom of the pressing plate 1.

[0029] A sealing rubber ring 16 is also embedded at the bottom of the pressing plate 1 at the edge of the sealing disc 11. A pressure sensor 17 is also inserted into the pressing plate 1. The pressure sensor 17 penetrates through the pressing plate 1 and the sealing disc 11 and extends below the sealing disc 11.

[0030] Based on the above, when the pressing plate 1 presses down the container head 2 to correct its position, the top end part of the container head 2 fits at the sealing rubber ring 16 and cooperates with several rubber ring tubes 12 outside the sealing disc 11 to improve the sealing of the internal space of the container head 2. Then, an external air pump assembly is used to inflate and pressurize the inside of the container head 2 to increase the air pressure in the internal space. The pressure sensor 17 is used to obtain the pressure data of the internal space. The pressure sensor 17 is connected to the control panel 18 to display the pressure data, and the detection of the internal sealing of the container head 2 is realized according to the change information of the pressure data.

[0031] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A sealing detection device for the head of a high-pressure vessel, characterized in that, It includes a base member for carrying the container head. Above the base member, there is a lifting and movable pressing plate. A sealing member for sealing the container head is installed at the bottom of the pressing plate. After the container head is placed on the base member, the sealing member is inserted into the inner cavity at the top end of the container head, and the edge of the sealing member fits on the inner wall of the container head. A driving member for driving the pressing plate and the sealing member to lift and move is provided at the top of the pressing plate.

2. The sealing performance detection device for the head of a high-pressure vessel according to claim 1, characterized in that: The base member includes a workbench and a through hole opened in the middle of the workbench. A base ring protruding upward is installed at the edge of the through hole, and the bottom end of the container head fits on the surface of the base ring.

3. The sealing performance detection device for the head of a high-pressure vessel according to claim 1, characterized in that: Support frames are also installed on the surface of the workbench on both sides of the base ring. An equipment top plate is connected between the top ends of the support frames, and the driving member is installed on the equipment top plate.

4. A sealing performance detection device for a high-pressure vessel head according to claim 3, characterized in that: The driving member includes a hydraulic push rod fixed on the equipment top plate and limiting rods on both sides of the hydraulic push rod. A lifting and movable limiting tube is sleeved at the bottom end of the limiting rod, and the bottom ends of the limiting tube and the output shaft of the hydraulic push rod are both fixed on the surface of the pressing plate.

5. The sealing performance detection device for the head of a high-pressure container according to claim 1, wherein: The sealing member includes a sealing disc fixed at the bottom of the pressing plate. A number of rubber ring tubes are embedded at the edge of the sealing disc. The rubber ring tubes are hollow inside, and a number of air passage channels communicating with the inside of the rubber ring tubes are embedded inside the sealing disc.

6. The sealing performance detection device for the head of a high-pressure container according to claim 5, characterized in that: At the other ends of the number of air passage channels, an air pipe is connected. The air pipe sequentially penetrates through the sealing disc and the pressing plate and extends above the pressing plate, and a movable hose is connected to the top end of the air pipe.

7. A sealing performance detection device for a high-pressure vessel head according to claim 5, characterized in that: A sealing rubber ring is also embedded at the bottom of the pressing plate at the edge of the sealing disc, and a pressure sensor is inserted into the pressing plate. The pressure sensor penetrates through the pressing plate and the sealing disc and extends below the sealing disc.

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