CN215831191U

CN215831191U - Novel special anti-leakage ball valve for natural gas

Info

Publication number: CN215831191U
Application number: CN202122025889.7U
Authority: CN
Inventors: 周建东
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-02-15
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses a novel special natural gas leakage-proof ball valve, which adopts the technical scheme that: including valve body, apron, valve rod, cavity, disk seat and spheroid, valve body top bolted connection has the apron, and the valve body runs through jointly with the apron intermediate position has the valve rod, and the inside level of valve body is equipped with the cavity, and the inside intermediate position of cavity is equipped with the disk seat, and disk seat center level is equipped with through-hole an, and through-hole an is linked together with the cavity, and spheroid center level is equipped with through-hole b, and the valve rod bottom is vertical to extend to inside and fixedly connected with spheroid of cavity, and the spheroid is located inside the disk seat, the inside sealing mechanism that still is equipped with of disk seat, sealing mechanism are located between disk seat inner wall and the spheroid surface, the valve body left end is equipped with filtering mechanism, the valve body right-hand member is equipped with back-fire relief mechanism, and beneficial effect is: the utility model can effectively improve the sealing performance and the safety performance, can also effectively improve the quality of natural gas, has reasonable structural design and is suitable for popularization and use.

Description

Novel special anti-leakage ball valve for natural gas

Technical Field

The utility model relates to the technical field of natural gas ball valves, in particular to a novel special natural gas leakage-proof ball valve.

Background

The ball valve can be used for regulating and controlling fluid, wherein a V-shaped core of the hard seal V-shaped ball valve and a metal valve seat of the surfacing hard alloy have strong shearing force, and the ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels. The valve of this type should be generally installed horizontally in the pipeline. The special gas ball valve is a switch type control valve, and the valve adopts the design of fixing a ball body, forging a valve body and connecting a middle flange by bolts.

The existing special natural gas ball valve has poor sealing effect and still has larger improvement space, so that the need of developing a novel special natural gas leakage-proof ball valve is necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel special natural gas leakage-proof ball valve, which has the advantages that the sealing performance between a ball body and a valve seat is better through the matching use of the arranged sealing mechanism, so that the sealing effect is effectively improved, the impurities in natural gas can be effectively filtered when the natural gas flows through the special natural gas leakage-proof ball valve through the matching use of the arranged filtering mechanism, the quality of the natural gas is improved, the flame spread can be effectively prevented from generating the tempering phenomenon through the matching use of the arranged fire retardant mechanism, and the safety performance is effectively improved.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a novel natural gas is special prevents leaking ball valve, includes valve body, apron, valve rod, cavity, disk seat and spheroid, and valve body top bolted connection has the apron, and the valve body runs through jointly with the apron intermediate position has the valve rod, and the inside level of valve body is equipped with the cavity, and the inside intermediate position of cavity is equipped with the disk seat, and disk seat center level is equipped with through-hole an, and through-hole an is linked together with the cavity, and spheroid center level is equipped with through-hole b, and the valve rod bottom is vertical to extend to the cavity inside and fixedly connected with spheroid, and the spheroid is located inside the disk seat, the inside sealing mechanism that still is equipped with of disk seat, sealing mechanism are located between disk seat inner wall and the spheroid surface, the valve body left end is equipped with filtering mechanism, the valve body right-hand member is equipped with back-fire relief mechanism.

Preferably, the sealing mechanism is a sealing ring, the sealing ring is made of APF materials, the outer surface of the sealing ring is strongly bonded with the inner wall of the valve seat, and the inner surface of the sealing ring is attached to the outer surface of the ball body.

Preferably, the center of the sealing ring is horizontally provided with a through hole c, and the through hole c is communicated with the through hole a.

Preferably, filtering mechanism includes flange board an, mounting groove a, installing frame and filter screen, valve body left end fixedly connected with flange board a, flange board an inner wall is equipped with mounting groove a, the inside installing frame that is equipped with of mounting groove a, the inside filter screen that has inlayed of installing frame.

Preferably, the filter screen is the high-efficient filter screen of HEPA, the powerful bonding of mounting groove an inner wall has sealed the pad, the mounting frame surface is laminated with sealed pad internal surface mutually.

Preferably, fire relief mechanism includes flange board b, mounting groove b and back-fire relief piece, valve body right-hand member fixedly connected with flange board b, flange board b inner wall is equipped with mounting groove b, the inside back-fire relief piece that is equipped with of mounting groove b.

Preferably, the inner wall of the mounting groove b is bonded with a sealing gasket in a strong manner, and the outer surface of the fire retardant sheet is attached to the inner surface of the sealing gasket.

Preferably, a handle penetrates through the top end of the valve rod, and the left end of the handle is connected with the top end of the valve rod through a bolt.

Compared with the prior art, the utility model has the beneficial effects that: the utility model can effectively filter impurities in natural gas and improve the quality of the natural gas when the natural gas flows through the valve seat by matching the arranged sealing mechanism, can effectively prevent flame from spreading and generating a backfire phenomenon and effectively improve the safety performance.

Drawings

FIG. 1 is a schematic three-dimensional structure of the present invention;

FIG. 2 is a structural cross-sectional view of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is an enlarged view of FIG. 2 at B;

fig. 5 is an enlarged view of fig. 2 at C.

In the figure: 1. a valve body; 1-1, flange plate a; 1-1-1, mounting groove a; 1-2, flange plate b; 1-2-1 and a mounting groove b; 2. a cover plate; 3. a valve stem; 3-1, a handle; 4. a cavity; 5. a valve seat; 5-1, a through hole a; 6. a sphere; 6-1, a through hole b; 7. a seal ring; 7-1, a through hole c; 8. installing a frame; 8-1, filtering by using a filter screen; 9. a fire retardant sheet; 10. and a gasket.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Embodiment 1, referring to fig. 1 to 5, the novel leakage-proof ball valve special for natural gas comprises a valve body 1, a cover plate 2, a valve rod 3, a cavity 4, a valve seat 5 and a ball body 6, wherein the top end of the valve body 1 is connected with the cover plate 2 through a bolt, the valve rod 3 commonly penetrates through the middle positions of the valve body 1 and the cover plate 2, the cavity 4 is horizontally arranged inside the valve body 1, the valve seat 5 is arranged at the middle position inside the cavity 4, a through hole a5-1 is horizontally arranged at the center of the valve seat 5, the through hole a5-1 is communicated with the cavity 4, a through hole b6-1 is horizontally arranged at the center of the ball body 6, the bottom end of the valve rod 3 vertically extends into the cavity 2 and is fixedly connected with the ball body 6, the ball body 6 is located inside the valve seat 5, the structure is the prior art, so that a worker can control the ball body 6 to rotate inside the valve seat through rotating the valve rod 3, thereby controlling whether the cavity 4, the through hole a5-1 and the through hole b6-1, when the valve body 1 is communicated, natural gas can pass through the valve body 1, and when the valve body is not communicated, the natural gas cannot pass through the valve body, so that the natural gas control effect is achieved;

furthermore, the sealing mechanism is a sealing ring 7, the sealing ring 7 is made of APF materials, the outer surface of the sealing ring 7 is strongly bonded with the inner wall of the valve seat 5, the inner surface of the sealing ring 7 is attached to the outer surface of the ball body 6, the sealing performance between the ball body 6 and the valve seat 5 can be effectively improved, the sealing performance of the natural gas leakage prevention device is improved, and the natural gas leakage prevention device is reasonable in structural design because the center of the sealing ring 7 is horizontally provided with a through hole c7-1 and the through hole c7-1 is communicated with the through hole a5-1 so that natural gas can pass through the through hole c 7-1;

further, the filtering mechanism comprises a flange plate a1-1, a mounting groove a1-1-1, a mounting frame 8 and a filter screen 8-1, the flange plate a1-1 is fixedly connected to the left end of the valve body 1, the mounting groove a1-1-1 is arranged on the inner wall of the flange plate a1-1, the mounting frame 8 is arranged in the mounting groove a1-1-1, the filter screen 8-1 is embedded in the mounting frame 8, the filter screen 8-1 is an HEPA high-efficiency filter screen, and natural gas flowing through the natural gas filtering device can be filtered, thereby filtering impurities in the natural gas and improving the quality of the natural gas, the sealing gasket 10 is strongly adhered to the inner wall of the mounting groove a1-1-1, the outer surface of the mounting frame 8 is attached to the inner surface of the sealing gasket 10, the natural gas can be effectively prevented from escaping from the gap between the mounting groove a1-1-1 and the mounting frame 8, so that the filtering effect of the natural gas filter is ensured;

further, the fire retardant mechanism comprises a flange plate b1-2, a mounting groove b1-2-1 and a fire retardant sheet 9, the flange plate b1-2 is fixedly connected to the right end of the valve body 1, the mounting groove b1-2-1 is formed in the inner wall of the flange plate b1-2, the fire retardant sheet 9 is arranged inside the mounting groove b1-2-1, the fire retardant sheet 9 plays a role in preventing fire from spreading, the tempering phenomenon can be effectively prevented when natural gas is combusted, the safety performance is improved, the sealing gasket 10 is strongly bonded on the inner wall of the mounting groove b1-2-1, the outer surface of the fire retardant sheet 9 is attached to the inner surface of the sealing gasket 10, flame during combustion of the natural gas can be effectively prevented from escaping from a gap between the mounting groove b1-2-1 and the fire retardant sheet 9, and therefore the effect of preventing the natural gas from spreading is guaranteed;

furthermore, a handle 3-1 penetrates through the top end of the valve rod 3, the left end of the handle 3-1 is connected with the top end of the valve rod 3 through a bolt, so that a worker can control the valve rod 3 to rotate through the handle 3-1, the sphere 6 is controlled to rotate, and whether the through hole b6-1 is communicated with the cavity 4, the through hole a5-1 and the through hole c7-1 or not is controlled, namely the natural gas control device achieves the effects of on-off control and size adjustment.

The working principle of the utility model is as follows: the working personnel can control the valve rod 3 to rotate through the handle 3-1, so that the ball body 6 is controlled to rotate, and whether the through hole b6-1 is communicated with the cavity 4, the through hole a5-1 and the through hole c7-1 is controlled, namely the natural gas control device achieves the effects of on-off control and size adjustment;

under the action of the sealing ring 7, the sealing performance between the ball 6 and the valve seat 5 can be effectively improved, so that the sealing performance of the natural gas fire-resistant valve can be improved, the natural gas leakage can be effectively prevented, the natural gas flowing through the natural gas fire-resistant valve can be filtered under the action of the filter screen 8-1, so that impurities in the natural gas can be filtered, the quality of the natural gas can be improved, the fire spread can be effectively prevented under the action of the fire-resistant sheet 9, the tempering phenomenon during the combustion of the natural gas can be effectively prevented, the safety performance is improved, compared with the prior art, the sealing performance and the safety performance can be effectively improved, the quality of the natural gas can be effectively improved, the structural design is reasonable, and the natural gas fire-resistant valve is suitable for popularization and use.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.

Claims

1. The utility model provides a novel special leak-proof ball valve of natural gas, including valve body (1), apron (2), valve rod (3), cavity (4), disk seat (5) and spheroid (6), valve body (1) top bolted connection has apron (2), valve body (1) and apron (2) intermediate position run through jointly have valve rod (3), valve body (1) inside level is equipped with cavity (4), cavity (4) inside intermediate position is equipped with disk seat (5), disk seat (5) central level is equipped with through-hole a (5-1), through-hole a (5-1) are linked together with cavity (4), spheroid (6) central level is equipped with through-hole b (6-1), valve rod (3) bottom vertical extend to cavity (4) inside and fixedly connected with spheroid (6), spheroid (6) are located inside disk seat (5), its characterized in that: the novel fire-resistant ball valve is characterized in that a sealing mechanism is further arranged inside the valve seat (5), the sealing mechanism is located between the inner wall of the valve seat (5) and the outer surface of the ball body (6), a filtering mechanism is arranged at the left end of the valve body (1), and a fire-resistant mechanism is arranged at the right end of the valve body (1).

2. A novel special leakage-proof ball valve for natural gas as claimed in claim 1, wherein: the sealing mechanism is a sealing ring (7), the sealing ring (7) is made of APF materials, the outer surface of the sealing ring (7) is strongly bonded with the inner wall of the valve seat (5), and the inner surface of the sealing ring (7) is attached to the outer surface of the ball body (6).

3. A novel special leakage-proof ball valve for natural gas as claimed in claim 2, wherein: the center of the sealing ring (7) is horizontally provided with a through hole c (7-1), and the through hole c (7-1) is communicated with the through hole a (5-1).

4. A novel special leakage-proof ball valve for natural gas as claimed in claim 1, wherein: the filter mechanism comprises a flange plate a (1-1), a mounting groove a (1-1-1), a mounting frame (8) and a filter screen (8-1), the left end of the valve body (1) is fixedly connected with the flange plate a (1-1), the inner wall of the flange plate a (1-1) is provided with the mounting groove a (1-1-1), the mounting frame (8) is arranged inside the mounting groove a (1-1-1), and the filter screen (8-1) is embedded inside the mounting frame (8).

5. A novel special leakage-proof ball valve for natural gas as claimed in claim 4, wherein: the filter screen (8-1) is the high-efficient filter screen of HEPA, the powerful bonding of mounting groove a (1-1-1) inner wall has sealed pad (10), the laminating of installing frame (8) surface and sealed pad (10) internal surface mutually.

6. A novel special leakage-proof ball valve for natural gas as claimed in claim 1, wherein: the fire retardant mechanism comprises a flange plate b (1-2), a mounting groove b (1-2-1) and a fire retardant sheet (9), the flange plate b (1-2) is fixedly connected to the right end of the valve body (1), the inner wall of the flange plate b (1-2) is provided with the mounting groove b (1-2-1), and the fire retardant sheet (9) is arranged inside the mounting groove b (1-2-1).

7. A novel special leakage-proof ball valve for natural gas as claimed in claim 6, wherein: the inner wall of the mounting groove b (1-2-1) is also strongly bonded with a sealing gasket (10), and the outer surface of the fire retardant sheet (9) is attached to the inner surface of the sealing gasket (10).

8. A novel special leakage-proof ball valve for natural gas as claimed in claim 1, wherein: the handle (3-1) penetrates through the top end of the valve rod (3), and the left end of the handle (3-1) is connected with the top end of the valve rod (3) through a bolt.