CN212775906U - Dismounting device with seal welding manual stop valve - Google Patents

Abstract

The utility model relates to a take dismouting device of manual stop valve of seal welding, including drive assembly, drive sleeve and fixing base, drive assembly includes manual moment spanner and torque amplifier, be provided with the input square head on the manual moment spanner, be equipped with input square hole and output square head on torque amplifier top and the bottom respectively, and it is supporting to have a drive arm, be equipped with square drive hole on the drive sleeve top, square drive hole and output square head phase-match, drive sleeve is equipped with long U type opening and short U type opening, the fixing base includes left clamp splice, right clamp splice and fixed subassembly, be provided with first reaction stand and second reaction stand on left clamp splice and right clamp splice, and seted up vertical valve body through-hole and horizontal pipeline through-hole in its laminating department. The utility model discloses a cooperation design of drive assembly, driving sleeve and fixing base can realize taking the manual stop valve of seal welding to dismantle and repack, avoids the too big damage that causes of stop valve body place pipeline atress simultaneously.

Description

Dismounting device with seal welding manual stop valve

Technical Field

The utility model belongs to a dismouting technical field, in particular to take dismouting device of manual stop valve of seal welding.

Background

The manual stop valve with the seal weld is generally suitable for high-pressure medium occasions and mainly structurally comprises a valve body, a valve cover, a valve core, a valve rod assembly, a packing assembly, a yoke, a hand wheel and the like. The flange part in the valve is designed into a lip welding structure, the valve cover is connected with the valve body through threads, and the middle flange gasket is extruded to form sealing after the valve cover is screwed tightly. In order to ensure the sealing effect, the tightening torque between the valve cover and the valve body is usually very large, for example, DN50 and PN1500lbs sealing welding stop valves produced in certain countries, the tightening torque of the valve cover is 2880N.m when the middle flange gasket is in a metal graphite winding form, and the tightening torque of the valve cover is as high as 4130N.m when the middle flange gasket is made of pure metal.

The dismouting in-process of manual stop valve is welded in the tradition area seal, need alone to use extension bar to connect the counteractive spanner and block the valve body, alone block the yoke portion with the moment spanner, alone hold valve body and assembly and disassembly tools, thereby three people mutually support and realize the dismantlement and the repacking of valve gap and valve body, this dismouting mode is wasted time and energy, easily receive the restriction of valve peripheral space and can't use, and require higher to personnel's cooperation, if the cooperation is improper will lead to pipeline atress damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a take dismouting device of seal welding manual stop valve to prior art's not enough, through the cooperation design of drive assembly, driving sleeve and fixing base, can realize taking seal welding manual stop valve to dismantle and repack, avoid stop valve body place pipeline atress too big damage that causes simultaneously.

The utility model discloses the technical scheme who adopts:

a dismounting device with a seal welding manual stop valve comprises a driving assembly, a driving sleeve and a fixing seat, wherein the driving assembly comprises a manual torque wrench and a torque amplifier, an input end square head is arranged on the manual torque wrench, an input end square hole and an output end square head are respectively arranged on the top and the bottom of the torque amplifier, a driving arm is matched with the driving assembly, the input end square hole is matched with the input end square head, a square driving hole is arranged on the top of the driving sleeve, the square driving hole is matched with the output end square head of the torque amplifier, a long U-shaped opening and a short U-shaped opening are symmetrically arranged on the lower portion of the driving sleeve, the fixing seat comprises a left clamping block, a right clamping block and a fixing assembly, a first reaction upright column and a second reaction upright column which are opposite to each other are respectively arranged on the left clamping block and the right clamping block, and a vertical valve body through hole and a transverse pipeline through hole are arranged at the joint of the, the valve body through hole is communicated with the pipeline through hole.

Furthermore, the fixing assembly comprises four long bolts and nuts of which the number is corresponding to that of the long bolts, the long bolts penetrate through the left clamping block and the right clamping block, and the tail ends of the long bolts are rotatably connected with the nuts.

Further, the outer surfaces of the first reaction upright post and the second reaction upright post are both provided with wear-resistant coatings.

Furthermore, lines are arranged on the manual torque wrench.

Furthermore, an isolation rubber layer is arranged on the inner wall of the pipeline through hole.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a cooperation design of drive assembly, driving sleeve and fixing base can realize taking the manual stop valve of seal weld to dismantle and repack safely, high-efficiently and reliably, avoids stop valve body place pipeline atress too big to cause the damage simultaneously, effectively solves current assembly and disassembly tools in the in-process lip limit interlock that uses and seriously easily scraps, pipeline yielding and pipeline atress and valve yoke atress easily scrap, the manpower demand is big, workman intensity of labour defects such as big when the dismouting.

2. The manual torque wrench and the torque amplifier are combined, manual operation is performed, an external power supply or an air source is not needed, and the use is convenient; the torque value can be accurately set, and the standard of the reinstallation torque is ensured; can use smaller force to output very large torque, and can be easily operated by a single person; the moment fastening process is smooth, no instantaneous impact force exists, and safety and reliability are realized;

3. the device does not need to lengthen the force arm, has less requirement on the operation space and has stronger applicability;

4. the left clamping block and the right clamping block are used for tightly embracing the valve body, the applied driving force finally acts on the valve body of the stop valve through the first reaction upright column and the second reaction upright column, and the pipeline where the valve body of the stop valve is located does not bear the reaction force, so that the pipeline and a welding seam can be effectively prevented from being damaged;

5. the long U-shaped opening of the driving sleeve clamps the stop valve yoke and transmits the driving force, and the short U-shaped opening of the driving sleeve avoids the protruded packing gland part, so that the fastening of the valve cover of the stop valve can be effectively realized;

6. left clamp splice and right clamp splice symmetrical arrangement, and be provided with first reaction stand and second reaction stand on it respectively, at the in-process of operation, the first reaction stand of alternate use and second reaction stand transmission reaction force can avoid the stop valve gap to cause the slope because of the unilateral atress in fastening process for stop valve gap clearance is even, and flange gasket is sealed effectual in the assurance.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the sleeve structure of the present invention;

in the figure: 1. a manual torque wrench; 2. a drive arm; 3. a drive sleeve; 4. a long U-shaped opening; 5. a second reaction upright; 6. a long bolt; 7. a conduit through hole; 8. a right clamp block; 9. a left clamp block; 10. a nut; 11. a valve body through hole; 12. a first reaction upright; 13. a short U-shaped opening; 14. a square drive hole; 15. an output end square head; 16. a torque amplifier; 17. an input end square hole; 18. the input end is square.

Detailed Description

In order to better understand the technical content of the present invention, the following embodiments are provided, and the present invention is further described with reference to the accompanying drawings.

Referring to fig. 1 to 2, the utility model provides a take dismouting device of seal welding manual stop valve, including drive assembly, driving sleeve 3 and fixing base, drive assembly includes manual moment spanner 1 and torque amplifier 16, be provided with input side head 18 on the manual moment spanner 1, use torque amplifier 16 operation can be more smooth and easy, steady and obtain more accurate moment of torsion, and can effectively reduce the expenditure of physical power, be provided with input side hole 17 and output side head 15 on torque amplifier 16's top and the bottom respectively, and torque amplifier 16 is supporting has driving arm 2, driving arm 2 is used for transmitting reaction force, input side hole 17 of torque amplifier 16 and manual moment spanner 1's input side head 18 phase-match, driving sleeve 3 designs for inside hollow tubular structure, be provided with square drive hole 14 on driving sleeve 3 top, the square driving hole 14 is matched with an output end square head 15 of a torque amplifier 16, the lower part of a driving sleeve 3 is symmetrically provided with a long U-shaped opening 4 and a short U-shaped opening 13, the two long U-shaped openings 4 and the two short U-shaped openings 13 are arranged in pairwise symmetry, wherein the two long U-shaped openings 4 are clamped on a stop valve yoke, the two short U-shaped openings 13 are used for avoiding the protruding part of a stop valve packing gland and avoiding interference stress, a fixing seat comprises a left clamping block 9, a right clamping block 8 and a fixing component, the left clamping block 9 and the right clamping block 8 are symmetrically arranged, a first reaction upright post 12 and a second reaction upright post 5 which are opposite to each other are respectively arranged on the left clamping block 9 and the right clamping block 8, a vertical valve body through hole 11 and a horizontal pipeline through hole 7 are arranged at the joint part of the left clamping block 9 and the right clamping block 8, the valve body through hole 11 is communicated with the pipeline through hole 7 (namely, a horizontal pipeline through hole 11 and a vertical valve body through hole 7 are arranged in the middle of the joint, three outlets are reserved, the hollowed shape of the three outlets is integrally in an inverted T shape, the valve body of the stop valve is matched with the valve body through hole 11, and the pipeline is matched with the pipeline through hole 7); the torque set by the driving component directly acts on the screwing of the valve cover and the valve body of the stop valve, and the effect of fastening or unscrewing the valve is achieved.

Specifically, the fixing assembly comprises four long bolts 6 and nuts 10 corresponding to the number of the long bolts, the long bolts 10 penetrate through the left clamping block 9 and the right clamping block 8, and the tail ends of the long bolts 6 are rotatably connected with the nuts 10. The left clamping block 9 and the right clamping block 8 are tightly connected through the matching of the long bolt 6 and the nut 10.

Specifically, the outer surfaces of the first reaction upright 12 and the second reaction upright 2 are both provided with wear-resistant coatings. Avoid in-process in long-term use, drive arm 2 often contacts with first reaction stand 12 and second reaction stand 5, causes the mar easily to its surface, influences its performance and life.

Specifically, the manual torque wrench 1 is provided with grains. The friction force is effectively increased, so that the gripping force of the staff on the manual torque wrench 1 is stronger.

Specifically, an isolation rubber layer is arranged on the inner wall of the pipeline through hole 7. Utilize the buffer rubber layer to separate left clamp splice 9 and right clamp splice 8 and the pipeline of installing the stop valve, avoid left clamp splice 9 and right clamp splice 8 when closely laminating, effort direct action causes the damage to the pipeline outer wall easily on the pipeline.

The utility model discloses a dismouting process does:

1. installing a left clamping block and a right clamping block: the direction of left clamp splice 9 and right clamp splice 8 has been adjusted, make first reaction stand 12 and second reaction stand 5 that set up on left clamp splice 9 and the right clamp splice 8 unanimous with the yoke of stop valve orientation, detain left clamp splice 9 and right clamp splice 8 on the stop valve body of treating the dismouting, make the stop valve body closely laminate with the valve body through-hole 11 that is mingled with between left clamp splice 9 and right clamp splice 8, reuse four long bolt 6 to pass left clamp splice 9 and right clamp splice 8 again, and use nut 10 to fasten, make left clamp splice 9 and right clamp splice 8 tightly wrap up the stop valve body.

2. Installing a driving sleeve: the position of the driving sleeve 3 is adjusted, the driving sleeve is sleeved on the stop valve bonnet assembly from top to bottom, the long U-shaped opening 4 of the driving sleeve 3 is clamped with the stop valve yoke, and the short U-shaped opening 13 of the driving sleeve is clamped with the protruding part of the stop valve packing gland.

3. Installing a driving component: the rotation direction of the torque amplifier 16 and the multiple of the torque amplifier 16 are set, the square head 15 at the output end of the torque amplifier 16 is inserted into the square driving port 14 of the driving sleeve 3, the driving arm 2 is adjusted to be in contact with one of the reaction pillars, the torque value and the rotation direction of the manual torque wrench 1 are set, and the square head 18 at the input end of the manual torque wrench 1 is inserted into the square hole 17 at the input end of the torque amplifier 16.

4. Disassembling and assembling the stop valve:

1) the acting force of the manual torque wrench 1 is amplified by the torque amplifier 16 and then transmitted to the driving sleeve 6, and then transmitted to the stop valve yoke through the long U-shaped opening 4 on the driving sleeve 6, so that the valve cover component of the stop valve is driven to rotate;

2) during operation, the torque amplifier 16 is subjected to a reaction torque, and the reaction force is transmitted to one of the reaction pillars through the driving arm 2 and is finally transmitted to the valve body of the stop valve through the corresponding reaction clamping block;

3) if the shut-off valve cover is reinstalled, in order to ensure that the clearance between the valve cover and the valve body after the shut-off valve is fastened is even, it is generally required to perform torque fastening in three times, while being alternately used on the first reaction strut 12 and the second reaction strut 2 (specifically, as: when the bonnet torque of the stop valve is 3000n.m, which can be fastened to 1000n.m for the first time, this force acts on the first reaction upright 12 of the left clamping block 9; second fastenable to 2000n.m, the force acting on the second reaction upright 5 of the right clamping block 8; a third fastening to 3000n.m, which acts on the first reaction upright 12 of the left clamp block 9).

4) After torque fastening is completed, the gap between the flanges in measurement can be finely adjusted by alternately using the first reaction strut 12 and the second reaction upright 5 (torque is the final torque value) if unevenness is found, and the reliability of sealing is ensured.

This device passes through drive assembly, the cooperation design of drive sleeve 3 and fixing base, can realize taking the manual stop valve of seal weld to dismantle and repack safely, high-efficiently and reliably, avoid the too big damage that causes of stop valve body place pipeline atress simultaneously, effectively solve current assembly and disassembly tools in the in-process lip limit interlock that uses and seriously easily scrap, pipeline yielding and pipeline atress and valve yoke atress easily scrap during the dismouting, the manpower demand is big, workman intensity of labour defects such as big.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (5)

1. The utility model provides a take dismouting device of seal welding manual stop valve which characterized in that: the driving assembly comprises a manual torque wrench and a torque amplifier, wherein an input end square head is arranged on the manual torque wrench, an input end square hole and an output end square head are respectively arranged on the top and the bottom of the torque amplifier, a driving arm is matched with the input end square head, a square driving hole is arranged on the top of the driving sleeve, the square driving hole is matched with the output end square head of the torque amplifier, a long U-shaped opening and a short U-shaped opening are symmetrically arranged on the lower portion of the driving sleeve, the fixing seat comprises a left clamping block, a right clamping block and a fixing assembly, a first reaction upright post and a second reaction upright post which are opposite to each other are respectively arranged on the left clamping block and the right clamping block, and a vertical valve body through hole and a transverse pipeline through hole are formed in the joint of the left clamping block and the right clamping block, the valve body through hole is communicated with the pipeline through hole.

2. The dismounting device with the seal welding manual stop valve according to claim 1, characterized in that: the fixing assembly comprises four long bolts and nuts corresponding to the long bolts in number, the long bolts penetrate through the left clamping block and the right clamping block, and the tail ends of the long bolts are rotatably connected with the nuts.

3. The dismounting device with the seal welding manual stop valve according to claim 1, characterized in that: and the outer surfaces of the first reaction upright post and the second reaction upright post are both provided with wear-resistant coatings.

4. The dismounting device with the seal welding manual stop valve according to claim 1, characterized in that: the manual torque wrench is provided with lines.

5. The dismounting device with the seal welding manual stop valve according to claim 1, characterized in that: and an isolation rubber layer is arranged on the inner wall of the pipeline through hole.

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