Plugging device for manufacturing pressure vessel equipment

Abstract

The utility model relates to a plugging device for manufacturing pressure vessel equipment, which comprises a device body arranged at a pipeline opening of a pressure vessel, the device body comprises a cross beam, support plates are vertically and fixedly arranged at the left end and the right end of the bottom of the cross beam, and first hydraulic cylinders are fixedly arranged at the lower parts of the two support plates in a horizontal penetrating manner along the left-right direction; piston rods of the two first hydraulic cylinders are oppositely arranged and fixedly connected with magneto-rheological clamping plates, the magneto-rheological clamping plates abut against the outer side wall of a pipeline opening on the same side, a second hydraulic cylinder is vertically and fixedly arranged in the center of the cross beam in a penetrating mode, and a piston rod of the second hydraulic cylinder faces downwards and is detachably connected with a cover plate. A plugging block is coaxially and fixedly arranged at the bottom of the cover plate, sealing gaskets wrap the bottom of the cover plate and the outer surface of the plugging block, the cover plate abuts against a flange at a pipeline opening, and the plugging block is inserted into the pipeline opening. The pipeline plugging device can rapidly plug a pipeline opening, is convenient to disassemble and assemble, and is more practical.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure vessel production, and particularly relates to a sealing device used for manufacturing pressure vessel equipment. Background Art

[0002] A pressure vessel is a sealed device that contains gas or liquid and bears a certain pressure. Its manufacturing process can generally be divided into: raw material acceptance process, marking process, cutting process, rust removal process, machining process (including planing, etc.), rolling process, assembly process, welding process (product welding test plate), non-destructive testing process, hole marking process, general inspection process, heat treatment process, pressure testing process, anti-corrosion process, etc. Among them, during the pressure test process, the pipe openings on the pressure vessel need to be sealed. The existing conventional method is to directly seal them through the combination of flange covers and corresponding bolts that match the pipe openings. Multiple bolts need to be disassembled and installed before and after the test. Especially when there are many pipe openings on the pressure vessel, this sealing method is more time-consuming, affecting the overall test efficiency. In addition, the operation is cumbersome and inconvenient, and the labor intensity is high. It is not convenient and practical, and needs to be improved. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a sealing device for use in the manufacture of pressure vessel equipment, which can quickly seal the pipe opening and is easy to disassemble and assemble, so as to solve the above-mentioned problems.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a sealing device for manufacturing pressure vessel equipment, comprising a device body arranged at the pipe opening on the pressure vessel, the device body comprising a cross beam, support plates are vertically fixed on the left and right ends of the bottom of the cross beam, the lower parts of the two support plates are horizontally penetrated by a first hydraulic cylinder along the left and right directions, the piston rods of the two first hydraulic cylinders are relatively arranged and fixedly connected to a magnetorheological splint, the magnetorheological splint is pressed against the outer wall of the pipe opening on the same side, a second hydraulic cylinder is vertically penetrated by the center of the cross beam, the piston rod of the second hydraulic cylinder is downwardly and detachably connected to a cover plate, a sealing block is coaxially fixed to the bottom of the cover plate, the bottom of the cover plate and the outer surface of the sealing block are wrapped with a sealing gasket, the cover plate is abutted against the flange flange at the pipe opening, and the sealing block is inserted into the pipe opening.

[0005] Preferably, the magnetorheological splint includes a substrate, one end of the substrate is fixedly connected to the piston rod of the corresponding first hydraulic cylinder, and a pressure sensor is embedded in the center of the other end, an electromagnetic coil is embedded on the circumferential side of the substrate, and the circumferential side of the substrate and the end away from the corresponding first hydraulic cylinder are wrapped with a magnetorheological elastomer, and the electromagnetic coil and the pressure sensor are both extended into the magnetorheological elastomer.

[0006] Preferably, the top center of the cover plate is fixed with a mounting box, the top of the mounting box is open, and blind holes are formed in the left and right inner side walls, the bottom end of the piston rod of the second hydraulic cylinder is fixedly connected with a fixed block, the fixed block is inserted into the mounting box, a double-rod hydraulic cylinder is arranged in the fixed block along the left-right direction, and the two piston rods of the double-rod hydraulic cylinder can extend out of the fixed block and be inserted into the blind holes on the same side.

[0007] Preferably, the top of the cross beam is fixed with a mobile power supply and a control system, and the first hydraulic cylinder, the second hydraulic cylinder, the electromagnetic coil, the pressure sensor and the double-rod hydraulic cylinder are electrically connected with the mobile power supply through the control system.

[0008] Preferably, the lower part of the plugging block is provided with a conical surface.

[0009] Preferably, the top end of the cylinder body part of the second hydraulic cylinder is fixedly provided with a handle.

[0010] The utility model discloses a beneficial effect is: before the test, need to plugging when the pipeline port on pressure vessel, can first make the piston rod of second hydraulic cylinder lengthen appropriate length, manual control plugging block inserts into pipeline port a little, can realize the positioning installation of device whole. Then, run two first hydraulic cylinders, make its piston rod lengthen, can drive corresponding magnetorheological clamp plate close to pipeline port until magnetorheological clamp plate press on the outer side wall that is wrapped in pipeline port, can whole steady clamping fixed on pipeline port of device, realize the fixed installation of device whole. Then, run second hydraulic cylinder again, make its piston rod continue to lengthen, can push plugging block and insert into pipeline port again, until cover plate press to the flange of pipeline port, can complete the plugging of this pipeline port, and through the cooperation of sealing washer on cover plate and plugging block, can guarantee the effectiveness of plugging more, improve the plugging quality. After the test, need to remove the plugging device, can run second hydraulic cylinder first, make its piston rod retract, can drive cover plate and plugging block and go up, until plugging block is extracted completely, can remove the plugging of pipeline port, run first hydraulic cylinder again, make its piston rod retract, drive magnetorheological clamp plate reset and restore, can remove the device, do not affect subsequent use. In this way, can realize the quick and effective plugging of pipeline port and can conveniently disassemble and assemble the whole plugging device before and after the test, the whole operation is more simple and convenient, time-saving and labor-saving, which is more favorable to improve the test efficiency, reduce the labor intensity and operation difficulty of workers, and is more convenient and practical. In addition, the characteristics of magnetorheological clamp plate can adapt to various pipeline ports with different outer diameters, and the detachable setting of cover plate and plugging block can adapt to various pipeline ports with different inner diameters, that is, the whole plugging device can meet the plugging requirements of various pipeline ports with different specifications, has a wide application range, and is more flexible and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1It is the main view structure schematic diagram of the utility model;

[0012] Fig. 2 It is the main view structure schematic diagram of the utility model crossbeam;

[0013] Fig. 3 It is the main view structure schematic diagram of the utility model magnetorheological clamp plate;

[0014] Fig. 4 It is the main view structure schematic diagram of the utility model cover plate and plugging block;

[0015] Fig. 5 It is the main view structure schematic diagram when the utility model mounting box and fixed block connect.

[0016] The mark in the drawing: 1 is pipeline mouth, 2 is flange, 3 is crossbeam, 4 is support plate, 5 is first hydraulic cylinder, 6 is magnetorheological clamp plate, 7 is second hydraulic cylinder, 8 is cover plate, 9 is plugging block, 10 is sealing gasket, 11 is base plate, 12 is pressure sensor, 13 is electromagnetic coil, 14 is magnetorheological elastomer, 15 is mounting box, 16 is blind hole, 17 is fixed block, 18 is double-rod hydraulic cylinder, 19 is mobile power supply, 20 is control system, 21 is conical surface, 22 is handle. DETAILED DESCRIPTION

[0017] The utility model will be described further in detail in combination with the drawings and specific implementation:

[0018] As Figs. 1 to 5 Shown, a kind of plugging device for pressure vessel equipment manufacturing, including the device body in the pipeline mouth 1 on pressure vessel. Device body includes a crossbeam 3, the bottom of crossbeam 3 Both ends are vertically fixedly provided with support plate 4, the lower portion of two support plates 4 is fixedly provided with first hydraulic cylinder 5 along left-right direction horizontally, the piston rod of two first hydraulic cylinders 5 is oppositely arranged and is fixedly connected with magnetorheological clamp plate 6, magnetorheological clamp plate 6 is pressed on the outside wall of same side pipeline mouth 1. The center of crossbeam 3 is vertically fixedly provided with second hydraulic cylinder 7, the piston rod of second hydraulic cylinder 7 is downward and detachably connected with cover plate 8, the bottom of cover plate 8 is coaxially fixedly provided with plugging block 9, the outer surface of cover plate 8 bottom and plugging block 9 is wrapped with sealing gasket 10, cover plate 8 is abutted on the flange 2 of pipeline mouth 1 at, plugging block 9 is inserted in pipeline mouth 1;

[0019] Before the test, when the pipe opening 1 on the pressure container needs to be plugged, the piston rod of the second hydraulic cylinder 7 can be first elongated to an appropriate length, and then the plugging block 9 is manually controlled to be inserted into the pipe opening 1 a little, so that the overall positioning and installation of the device can be realized. Then, the two first hydraulic cylinders 5 are operated to elongate the piston rods, so that the corresponding magnetorheological clamping plates 6 are driven to approach the pipe opening until the magnetorheological clamping plates 6 abut against the outer side wall wrapped around the pipe opening 1, so that the device as a whole is stably clamped and fixed on the pipe opening 1, and the fixed installation of the device as a whole is realized. Then, the second hydraulic cylinder 7 is operated again to continue elongating the piston rod, so that the plugging block 9 is pushed to continue inserting into the pipe opening 1 until the cover plate 8 abuts against the flange 2 at the pipe opening 1, so that the plugging of the pipe opening 1 is completed, and the effectiveness of the plugging is better guaranteed through the cooperation of the sealing gaskets 10 on the cover plate 8 and the plugging block 9, and the plugging quality is improved. After the test, when the plugging device needs to be removed, the piston rod of the second hydraulic cylinder 7 can be first retracted, so that the cover plate 8 and the plugging block 9 are driven to move upwards until the plugging block 9 is completely extracted, so that the plugging of the pipe opening 1 is released, and then the piston rod of the first hydraulic cylinder 5 is retracted to drive the magnetorheological clamping plates 6 to reset and restore, so that the device can be removed without affecting the subsequent use. In this way, the pipe opening 1 can be quickly and effectively plugged, and the entire plugging device can be conveniently disassembled before and after the test, and the overall operation is more simple and convenient, time-saving and labor-saving, which is more conducive to improving the overall test efficiency, reducing the labor intensity and operation difficulty of the workers, and is more convenient and practical. In addition, the characteristics of the magnetorheological clamping plates 6 can make them adapt to pipe openings 1 of various outer diameters, and the detachable arrangement of the cover plate 8 and the plugging block 9 as a whole can make them adapt to pipe openings of various inner diameters, that is, the overall plugging device can meet the plugging needs of pipe openings 1 of various specifications and sizes, has a wide application range, and is more flexible and convenient to use as a whole.

[0020] In the embodiment, the magneto-rheological clamp plate 6 comprises a base plate 11, one end of which is fixedly connected with the piston rod of the corresponding first hydraulic cylinder 5, the center of the other end of which is embedded with a pressure sensor 12, the circumferential side of the base plate 11 is embedded with an electromagnetic coil 13, and the circumferential side of the base plate 11 and the end thereof away from the corresponding first hydraulic cylinder 5 are both wrapped with a magneto-rheological elastomer 14, and the electromagnetic coil 13 and the pressure sensor 12 both extend into the magneto-rheological elastomer 14. When the first hydraulic cylinder 5 acts to drive the magneto-rheological clamp plate 6 to approach the pipeline port 1, the electromagnetic coil 13 is not electrified, the magneto-rheological elastomer 14 is in a pre-yield state, the shear yield stress is small, and deformation is easy to occur. When the magneto-rheological clamp plate 6 contacts the pipeline port 1, the impact generated by the contact can be reduced to ensure stability. Then, under the condition that the magneto-rheological clamp plate 6 continues to approach the pipeline port 1, the magneto-rheological elastomer 14 of the magneto-rheological clamp plate 6 can continue to press against the pipeline port 1, at which time the magneto-rheological elastomer 14 is deformed under pressure, so as to be perfectly wrapped on the outside of the pipeline port 1. At the same time, the pressure sensor 12 is pressed and gives an electric signal to the control system 20, so that the control system 20 can determine through the pressure sensor 12 that the magneto-rheological elastomer 14 has been deformed under pressure with the pipeline port 1, thereby automatically controlling the circuit of the electromagnetic coil 13 to be turned on, the electromagnetic coil 13 is electrified to generate a magnetic field, and the magneto-rheological elastomer 14 can generate a large shear yield stress in the magnetic field environment, so that its shape is solidified and no longer changes, and then it can perfectly adapt to the side of the pipeline port 1, and stably fix the device on the pipeline port 1. When the magneto-rheological clamp plate 6 leaves the pipeline port 1, the pressure sensor 12 loses pressure, and gives an electric signal to the control system 20 again, so that the control system 20 can automatically control the circuit of the electromagnetic coil 13 to be turned off, and then the magneto-rheological elastomer 14 returns to the original state after losing the magnetic field effect, so as not to affect its subsequent use, so that it can flexibly adapt to a variety of pipeline ports 1 with different outer diameters, has a wide range of applications, and is more flexible and convenient to use. The electromagnetic coil 13 and the pressure sensor 12 can both use the existing technology. The magneto-rheological elastomer 14 is the existing technology, which is to mix micron-sized ferromagnetic particles into a high polymer, which can deform and recover in a normal environment, and can be solidified in a magnetic field environment, so that the particles in the matrix have chain or columnar structure. The elastic modulus of such material can change with the strength of the applied magnetic field, so it is expected to be widely used in variable stiffness devices and other aspects. Compared with ordinary magneto-rheological fluid, the magneto-rheological elastomer 14 not only has controllability, reversibility, rapid response and other high-tech features, but also has good stability and other unique advantages.

[0021] In the embodiment, the top center of the cover plate 8 is fixedly provided with a mounting box 15, the top of the mounting box 15 is open, blind holes 16 are formed in the left and right inner side walls of the mounting box 15, a fixed block 17 is fixedly connected to the bottom end of the piston rod of the second hydraulic cylinder 7, the fixed block 17 is inserted into the mounting box 15, a double-rod hydraulic cylinder 18 is arranged in the fixed block 17 in the left-right direction, the two piston rods of the double-rod hydraulic cylinder 18 can extend out of the fixed block 17 and are inserted into the blind holes 16 on the same side, so that when the plugging block 9 needs to be replaced, the double-rod hydraulic cylinder 18 can be operated first, the piston rod of the double-rod hydraulic cylinder 18 is retracted into the fixed block 17, the insertion and fixation of the mounting box 15 are released, the mounting box 15 is pulled out, and then the original cover plate 8 and the plugging block 9 can be integrally removed. Then, a new cover plate 8 and a plugging block 9 are taken, the mounting box 15 on the new cover plate 8 and the plugging block 9 is inserted into the fixed block 17 in place, the double-rod hydraulic cylinder 18 is operated, the piston rod of the double-rod hydraulic cylinder 18 is extended into the corresponding blind hole 16 in place, and the mounting box 15 is inserted and fixed, so that the fixing and installation of the new cover plate 8 and the plugging block 9 are completed, the installation is stable, and the subsequent plugging is not affected. In this way, the cover plate 8 and the plugging block 9 can be flexibly and conveniently disassembled and replaced as a whole, the cover plate 8 and the plugging block 9 can be adapted to pipes 1 with different inner diameters, the application range is wide, and the whole is more flexible and convenient to use.

[0022] In the embodiment, the top of the cross beam 3 is fixedly provided with a mobile power supply 19 and a control system 20, the first hydraulic cylinder 5, the second hydraulic cylinder 7, the electromagnetic coil 13, the pressure sensor 12 and the double-rod hydraulic cylinder 18 are electrically connected to the mobile power supply 19 through the control system 20, so that in actual use, the mobile power supply 19 can supply power to the corresponding electrical devices, the corresponding devices are controlled to work through the control system 20, and the mobile power supply 19 and the control system 20 can adopt existing technologies.

[0023] In the embodiment, the lower part of the plugging block 9 is provided with a tapered surface 21, so that the plugging block 9 can be inserted.

[0024] In the embodiment, the top end of the cylinder body part of the second hydraulic cylinder 7 is fixedly provided with a handle 22, so that the device is more convenient to use.

[0025] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection range of the utility model.

Claims

1. A plugging device for pressure vessel equipment manufacturing, comprising a device body provided at a pipe opening on a pressure vessel, characterized in that, The device body comprises a crossbeam, the bottom of which is vertically fixed with a support plate on each of the left and right ends, the lower part of each of the two support plates is horizontally fixed with a first hydraulic cylinder along the left-right direction, the piston rods of the two first hydraulic cylinders are oppositely arranged and are fixedly connected with a magneto-rheological clamp plate, the magneto-rheological clamp plate is pressed against the outer sidewall of the same side of the pipeline opening, the center of the crossbeam is vertically fixed with a second hydraulic cylinder, the piston rod of the second hydraulic cylinder is downward and detachably connected with a cover plate, the bottom of the cover plate is coaxially fixed with a blocking block, the outer surfaces of the bottom of the cover plate and the blocking block are wrapped with a sealing gasket, the cover plate is abutted against the flange of the pipeline opening, and the blocking block is inserted into the pipeline opening.

2. The plugging device for pressure vessel equipment manufacturing according to claim 1, characterized by, The magneto-rheological clamp plate comprises a base plate, one end of the base plate is fixedly connected with the piston rod of the corresponding first hydraulic cylinder, the center of the other end is embedded with a pressure sensor, the peripheral side of the base plate is embedded with an electromagnetic coil, the peripheral side of the base plate and the end away from the corresponding first hydraulic cylinder are wrapped with a magneto-rheological elastomer, and the electromagnetic coil and the pressure sensor are inserted into the magneto-rheological elastomer.

3. The plugging device for pressure vessel equipment manufacturing according to claim 2, characterized in that, The top center of the cover plate is fixedly provided with a mounting box, the top of the mounting box is open, and blind holes are formed in the left and right inner side walls, the bottom end of the piston rod of the second hydraulic cylinder is fixedly connected with a fixed block, the fixed block is inserted into the mounting box, a double-rod hydraulic cylinder is arranged in the fixed block along the left-right direction, and the two piston rods of the double-rod hydraulic cylinder can extend out of the fixed block and are correspondingly inserted into the blind holes on the same side.

4. The plugging device for pressure vessel equipment manufacturing according to claim 3, characterized by, The top of the crossbeam is fixedly provided with a mobile power supply and a control system, and the first hydraulic cylinder, the second hydraulic cylinder, the electromagnetic coil, the pressure sensor and the double-rod hydraulic cylinder are electrically connected with the mobile power supply through the control system.

5. The plugging device for pressure vessel equipment manufacturing according to claim 1, wherein The lower part of the blocking block is provided with a tapered surface.

6. The plugging device for pressure vessel equipment manufacturing according to claim 1, wherein The top end of the cylinder body part of the second hydraulic cylinder is fixedly provided with a handle.

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