CN209743749U

CN209743749U - Novel heavy-calibre all-welded ball valve

Info

Publication number: CN209743749U
Application number: CN201920502235.9U
Authority: CN
Inventors: 项进博; 项杉杉; 项诗妍
Original assignee: Hangong Valve Co Ltd
Current assignee: Hangong Valve Co Ltd
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2019-12-06
Anticipated expiration: 2029-04-15

Abstract

The utility model discloses a novel heavy-calibre all-welded ball valve, its structure includes the through-hole, the ring flange, the side pipe is increased on a left side, the ball valve main part, the valve rod, the seal receptacle, the side pipe is increased on the right side, the maintenance is sealed, external screw thread and internal thread, this heavy-calibre all-welded ball valve has set up the side pipe that increases on a left side, and ball valve major structure has been optimized, during the use, the circulation face of control shutoff ball is towards interior body, the centre ball is opened and can normal use, when the troubleshooting, use the valve to seal the embedding maintenance, it seals to make the center post drive the shutoff ball, both sides have sealed the back, it can to twist out the ball valve main part and overhaul, high-efficient maintenance, simple swift, avoid carrying the loss of medium.

Description

Novel heavy-calibre all-welded ball valve

Technical Field

The utility model relates to a ball valve technical field, concretely relates to novel heavy-calibre all-welded ball valve.

Background

The valve seat of the all-welded ball valve is composed of a Teflon carbide sealing ring and a disc spring, so the all-welded ball valve has strong adaptability to the change of pressure and temperature, can not generate any sliding leakage in the range of marked pressure and temperature, has advanced computer detector tracking detection in the processing process of the ball body, has high processing precision of the ball body, can not generate uneven stress because the valve body material is the same as the material of a pipeline, can not generate deformation due to earthquakes and vehicles passing through the ground, has aging resistance of the pipeline, is widely applied to various heat treatment pipelines, various industrial gas and heat pipelines, is usually used for overhauling the all-welded ball valve, needs to stop conveying a medium and then utilizes a stop valve to block, can directly cause environmental pollution when the all-welded ball valve is dismounted due to the installation distance of the stop valve, and generally adopts a single blocking ball for the existing large-caliber all-welded ball valve, when the all-welded ball valve is subjected to fault maintenance, the media transported on two sides are difficult to directly implement plugging, and the situation that a stop valve at a far position is used for plugging is avoided, so that excessive leakage of the media in the pipeline communicated with two sides of the all-welded ball valve is easily caused.

disclosure of Invention

In order to overcome prior art not enough, a novel heavy-calibre all-welded ball valve has now been proposed, it adopts single shutoff ball usually to have solved current heavy-calibre all-welded ball valve, meet all-welded ball valve fault repair, be difficult to directly implement the shutoff to the medium of both sides transportation, avoid using the shutoff valve shutoff of longer department, lead to the problem of the too much leakage of medium in the pipeline of all-welded ball valve both sides switch-on easily, reached high-efficient maintenance, simple swift, the advantage of avoiding carrying the loss of medium and polluting the environmental problem emergence simultaneously.

The utility model discloses a following technical scheme realizes: the utility model provides a novel heavy-calibre all-welded ball valve, including through-hole, ring flange, left increase side pipe, ball valve main part, valve rod, seal receptacle, right increase side pipe, maintenance seal, external screw thread and internal thread, the through-hole runs through on the ring flange, and the quantity of through-hole is greater than 2, the ring flange is structure as an organic whole with left increase side pipe, and left increase side pipe right side surface is equipped with the external screw thread, the valve rod is fixed mounting in the seal receptacle, and the embedding of seal receptacle bottom is installed on the ball valve main part, right increase side pipe left side surface is equipped with the external screw thread, the maintenance seal is located left increase side pipe, right increase side pipe surface, the internal thread is located ball valve main part both ends internal surface, left increase side pipe includes casing, sealing strip, fastening strip, lubricated ring, center post, shutoff ball, inner chamber and rotation post, the inside embedding of casing is installed the, the sealing strip is positioned below the fastening strip, the outer surface of the fastening strip is embedded and installed in the shell, the inner surface of the fastening strip is in clearance fit with the central column, the top end of the central column and the maintenance seal are of an integrated structure, the bottom end of the central column is fixedly installed on the blocking ball, the blocking ball is arranged in the inner cavity, the bottom end of the blocking ball is fixedly installed with the rotating column, the blocking ball is positioned on the left side of the ball valve main body, the outer surface of the rotating column is attached to the inner surface of the lubricating ring, the outer surface of the lubricating ring is embedded and installed on the shell, the ball valve main body comprises an inner tube body, a connecting rod, a sealing patch, a ball shell, a central ball, a right connector, a surrounding column and a left connector, the inner tube body and the ball shell are of an integrated structure, the outer surface of the connecting rod is embedded and installed, seal paster bottom surface and centre ball top surface clearance fit, and centre ball top and connecting rod bottom swing joint, the centre ball is equipped with right interface, left interface, encircle the capital end and run through on the centre ball, and encircle capital end surface embedding and install on the spherical shell, the centre ball left side is equipped with left increase side pipe, and right increase side pipe is located the centre ball right side.

As the utility model discloses an optimize, ball valve main part left side internal thread is reverse design with right side screw thread direction.

As the utility model discloses an optimize, the ring flange is total 2, the maintenance seals total 2.

As the optimization of the utility model, the shutoff ball is equipped with shutoff face and circulation face.

As the utility model discloses an optimize, center post and shutoff ball adaptation degree are high, shutoff ball and rotation post adaptation degree are high.

As the utility model discloses an optimize, the left side increases the side pipe, the right side increases the side pipe and is the axisymmetric design along the vertical central line of ball valve main part.

As the optimization of the utility model, the ball valve main part is the hollow cylinder structure.

As the optimization of the utility model, the ring flange is made for cast iron, and support intensity is great.

As the optimization of the utility model, the spherical shell is made of steel, and has high strength, good plasticity and toughness.

Compared with the prior art, the utility model, following beneficial effect has:

For solving current heavy-calibre all-welded ball valve and adopting single shutoff ball usually, meet all-welded ball valve breakdown maintenance, be difficult to directly implement the shutoff to the medium of both sides transportation, avoid using the shutoff valve shutoff of more distant department, lead to the problem of the too much leakage of medium in the pipeline of all-welded ball valve both sides switch-on easily, through setting up the left side pipe that increases, the ball valve main part has been optimized, in the time of the use, the circulation face of control shutoff ball is towards interior body, the centre ball is opened can normal use, when the breakdown maintenance, use the valve to seal the embedding maintenance, make the center post drive the shutoff ball and seal, both sides seal the back, it can to twist out the ball valve main part and overhaul, high-efficient maintenance, it is simple swift, avoid carrying the loss of medium and pollution environment problem to take place simultaneously.

Drawings

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention after being disassembled;

FIG. 3 is a schematic structural view of the ball valve body of the present invention;

FIG. 4 is a schematic structural view of the left side-increasing pipe of the present invention during plugging;

Fig. 5 is a schematic structural view of the left side-increasing pipe of the present invention.

in the figure: the ball valve comprises a through hole-1, a flange-2, a left side-increasing pipe-3, a ball valve body-4, a valve rod-5, a sealing seat-6, a right side-increasing pipe-7, a maintenance seal-8, an external thread-9, an internal thread-10, a shell-301, a sealing strip-302, a fastening strip-303, a lubricating ring-304, a central column-305, a blocking ball-306, an inner cavity-307, a rotating column-308, an inner pipe body-401, a connecting rod-402, a sealing patch-403, a ball shell-404, a central ball-405, a right connector-406, a surrounding column-407 and a left connector-408.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present invention provides a novel large-diameter all-welded ball valve: the sealing structure comprises a through hole 1, a flange plate 2, a left side-increasing pipe 3, a ball valve main body 4, a valve rod 5, a sealing seat 6, a right side-increasing pipe 7, a maintenance seal 8, an external thread 9 and an internal thread 10, wherein the through hole 1 penetrates through the flange plate 2, the number of the through holes 1 is more than 2, the flange plate 2 and the left side-increasing pipe 3 are of an integrated structure, the external thread 9 is arranged on the outer surface of the right side of the left side-increasing pipe 3, the valve rod 5 is fixedly arranged in the sealing seat 6, the bottom of the sealing seat 6 is embedded and arranged on the ball valve main body 4, the external thread 9 is arranged on the outer surface of the left side of the right side-increasing pipe 7, the maintenance seal 8 is arranged on the outer surfaces of the left side-increasing pipe 3 and the right side-increasing pipe 7, the internal thread 10 is arranged on the inner surfaces of two ends of the ball valve main body 4, the left side-increasing, the sealing strip 302 is positioned below the fastening strip 303, the outer surface of the fastening strip 303 is embedded and installed in the shell 301, the inner surface of the fastening strip 303 is in clearance fit with the center column 305, the top end of the center column 305 and the maintenance seal 8 are of an integrated structure, the bottom end of the center column 305 is fixedly installed on the blocking ball 306, the blocking ball 306 is arranged in the inner cavity 307, the bottom end of the blocking ball 306 is fixedly installed with the rotating column 308, the blocking ball 306 is positioned at the left side of the ball valve main body 4, the outer surface of the rotating column 308 is attached to the inner surface of the lubricating ring 304, the outer surface of the lubricating ring 304 is embedded and installed on the shell 301, the ball valve main body 4 comprises an inner tube body 401, a connecting rod 402, a sealing patch 403, a ball shell 404, a center ball 405, a right interface 406, a surrounding column 407 and a left interface 408, the inner tube body 401 and the ball shell 404 are of an integrated, the top end of the connecting rod 402 is welded at the bottom end of the valve rod 5 through an electric arc, the bottom surface of the sealing patch 403 is in clearance fit with the top surface of the central ball 405, the top end of the central ball 405 is movably connected with the bottom end of the connecting rod 402, the central ball 405 is provided with a right interface 406 and a left interface 408, the top end of the surrounding column 407 penetrates through the central ball 405, the outer surface of the bottom end of the surrounding column 407 is embedded and installed on the ball shell 404, the left side of the central ball 405 is provided with a left side-increasing side pipe 3, and the right side.

Wherein, ball valve body 4 left side internal thread 10 is reverse design with right side screw thread direction, does benefit to and separates ball valve body 4 when overhauing.

Wherein, 2 are total in the ring flange 2, and 2 are total in the maintenance seal 8.

The blocking ball 306 is provided with a blocking surface and a circulating surface, so that the use requirement is met, and the start and stop control is facilitated.

The central column 305 and the blocking ball 306 have high adaptation degree, the blocking ball 306 and the rotating column 308 have high adaptation degree and high precision, and the sealing degree is enhanced.

The left side-increasing pipe 3 and the right side-increasing pipe 7 are in axisymmetric design along the vertical center line of the ball valve main body 4, and are reasonable in design and high in practicability.

Wherein, the ball valve body 4 is a hollow cylinder structure.

Wherein, the flange plate 2 is made of cast iron, and has higher supporting strength.

Material/support strength	Is low in	in	Height of
				Aluminium alloy	√
cast iron			√

Wherein, the spherical shell 404 is made of steel, and has high strength, good plasticity and good toughness.

according to the upper table show, the utility model discloses ring flange 2 adopts the cast iron to make, and its hardness, support intensity are big, excellent in use effect.

The flange 2 is also called flange or flange, the flange is a part for connecting pipes and is used for connecting pipe ends, and the flange is also used on an inlet and an outlet of equipment and is used for connecting the two equipment; the sealing patch 403 is a sealing sheet with good sealing performance.

The working principle is as follows: when the large-caliber all-welded ball valve is used, the bottom of the sealing seat 6 is embedded and installed on the ball valve main body 4, the left side-increasing pipe 3 and the right side-increasing pipe 7 are screwed into the ball valve main body 4 in a spiral mode, when the all-welded ball valve works normally, the all-welded ball valve is in an open state, the valve handle is embedded into the valve rod 5, the valve handle is screwed, the right connector 406 and the left connector 408 of the central ball 405 are communicated with the inner pipe body 401, the sealing patch 403 is favorable for enhancing the sealing performance and effectively fastening the central ball 405, then, the valve handle is embedded into the maintenance seal 8 on the left side-increasing pipe 3 and the right side-increasing pipe 7, the circulation passage of the sealing ball 306 faces the inner pipe body 401, the medium passes through the central ball 405 and the sealing ball 306 normally circulates, when the large-caliber all-welded ball valve fails, the maintenance seal 8 needs to be dismounted or replaced, the valve handle is embedded into the maintenance seal 8, the central post 305 drives the sealing ball 306 to rotate by 90 degrees, and the sealing surface, sealing strip 302 reinforcing seal effect, like the reason, will increase the side pipe 7 on the right side and implement the shutoff, then, through spiral ball valve main part 4's mode, make ball valve main part 4 increase side pipe 3 with a left side, the separation of the side pipe 7 junction is increased on the right side, the completion is dismantled, high-efficient maintenance, simple swift, avoids the loss of transport medium and pollution environment problem to take place simultaneously, wherein, center post 305 is high with shutoff ball 306 adaptation degree, shutoff ball 306 is high with rotation post 308 adaptation degree, and the precision is high, the sealed degree of reinforcing.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A novel large-diameter all-welded ball valve comprises a through hole (1), a flange plate (2), a valve rod (5), a sealing seat (6), a right side-increasing pipe (7), a maintenance seal (8), an external thread (9) and an internal thread (10), wherein the through hole (1) penetrates through the flange plate (2), the number of the through holes (1) is more than 2, the flange plate (2) and the left side pipe (3) are of an integrated structure, and the outer surface of the right side of the left side-increasing pipe (3) is provided with an external thread (9), the valve rod (5) is fixedly arranged in the sealing seat (6), the bottom of the sealing seat (6) is embedded and arranged on the ball valve main body (4), the outer surface of the left side of the right side-increasing pipe (7) is provided with an external thread (9), the maintenance seals (8) are arranged on the outer surfaces of the left side-increasing pipe (3) and the right side-increasing pipe (7), and the internal threads (10) are positioned on the inner surfaces of the two ends of the ball valve main body (4);

the method is characterized in that: the sealing device is characterized by further comprising a left side-increasing pipe (3) and a ball valve main body (4), wherein the left side-increasing pipe (3) comprises a shell (301), a sealing strip (302), a fastening strip (303), a lubricating ring (304), a central column (305), a sealing ball (306), an inner cavity (307) and a rotating column (308), the sealing strip (302) is embedded in the shell (301), the sealing strip (302) is located below the fastening strip (303), the outer surface of the fastening strip (303) is embedded in the shell (301), the inner surface of the fastening strip (303) is in clearance fit with the central column (305), the top end of the central column (305) and a maintenance seal (8) are of an integrated structure, the bottom end of the central column (305) is fixedly installed on the sealing ball (306), the sealing ball (306) is arranged in the inner cavity (307), the bottom end of the sealing ball (306) is fixedly installed with the rotating column (308), and the sealing ball valve main body (306) is located on the, the outer surface of the rotating column (308) is attached to the inner surface of the lubricating ring (304), the outer surface of the lubricating ring (304) is embedded and installed on the shell (301), the ball valve main body (4) comprises an inner tube body (401), a connecting rod (402), a sealing patch (403), a spherical shell (404), a central ball (405), a right interface (406), a surrounding column (407) and a left interface (408), the inner tube body (401) and the spherical shell (404) are of an integrated structure, the outer surface of the connecting rod (402) is embedded and installed on the spherical shell (404), the outer surface of the connecting rod (402) is attached to the inner surface of the sealing patch (403), the top end of the connecting rod (402) is welded to the bottom end of the valve rod (5) through an electric arc, the bottom surface of the sealing patch (403) is in clearance fit with the top surface of the central ball (405), the top end of the central ball (405) is movably connected with the bottom end of the connecting rod (402, The top end of the surrounding column (407) penetrates through the central ball (405), the outer surface of the bottom end of the surrounding column (407) is embedded in the ball shell (404), a left side pipe (3) is arranged on the left side of the central ball (405), and the right side pipe (7) is located on the right side of the central ball (405).

2. The novel large-caliber all-welded ball valve according to claim 1, characterized in that: the left side internal thread (10) and the right side internal thread of the ball valve main body (4) are designed in opposite directions.

3. The novel large-caliber all-welded ball valve according to claim 1, characterized in that: the number of the flange plates (2) is 2, and the number of the maintenance seals (8) is 2.

4. The novel large-caliber all-welded ball valve according to claim 1, characterized in that: the blocking ball (306) is provided with a blocking surface and a flow surface.

5. The novel large-caliber all-welded ball valve according to claim 1, characterized in that: the central column (305) is highly adaptive to the blocking ball (306), and the blocking ball (306) is highly adaptive to the rotating column (308).

6. The novel large-caliber all-welded ball valve according to claim 1, characterized in that: the left side increasing pipe (3) and the right side increasing pipe (7) are designed in an axial symmetry mode along the vertical center line of the ball valve main body (4).

7. The novel large-caliber all-welded ball valve according to claim 1, characterized in that: the ball valve main body (4) is of a hollow cylinder structure.