CN210978598U

CN210978598U - Fixed type anti-blowout fireproof ball valve

Info

Publication number: CN210978598U
Application number: CN201922032816.3U
Authority: CN
Inventors: 夏克洲; 季善宏
Original assignee: Shanghai Juliang Solenoid Valve Manufacture Co ltd
Current assignee: Shanghai Juliang Solenoid Valve Manufacture Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-07-10
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses a fixed prevent blowing off fire prevention ball valve relates to ball valve technical field, for solving the comparatively single problem of current function. The internally mounted of valve body has the spheroid, the intermediate position department of spheroid top is provided with the valve rod, the outside of valve rod is provided with polytetrafluoroethylene thrust pad, the lower extreme of valve rod is provided with the boss, anti-static device is installed to the below of boss, the valve body is close to spheroidal upper end and installs sealed urgent injection apparatus of fat, the upper end of sealed urgent injection apparatus of fat is provided with the safety valve cap, the below of safety valve cap is provided with sealant injection joint, the sealant injection joint is inside the below install one-way check valve, and one-way check valve installs two, one-way check valve's below is provided with the runner pipe, be provided with fire resistive construction between valve body and the spheroid, the one end of valve body is provided with the water inlet, the other end of valve body is provided with the.

Description

Fixed type anti-blowout fireproof ball valve

Technical Field

The utility model relates to a ball valve technical field specifically is a fixed fire prevention ball valve that prevents blowing off.

Background

In China, the ball valve is widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, plays a very important role in national economy, has the action of rotating by 90 degrees, has a spherical plug body with a circular through hole or a channel passing through the axis, and is mainly used for cutting off or connecting media in pipelines and can also be used for regulating and controlling fluid.

However, the existing ball valve is single in structure and poor in functional practicability, when a fire disaster occurs in the use site of the valve, due to the fact that no fireproof structure device is arranged, damage and accidents of the valve are caused easily, the existing requirements are not met, and the fixed type anti-blowout fireproof ball valve is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fixed prevent blowing off fire prevention ball valve to solve the comparatively single problem of function that provides in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fixed fire prevention ball valve of blowing off of preventing, includes the valve body, the internally mounted of valve body has the spheroid, the intermediate position department of spheroid top is provided with the valve rod, the outside of valve rod is provided with polytetrafluoroethylene thrust pad, and polytetrafluoroethylene thrust pad laminates with the valve rod mutually, the lower extreme of valve rod is provided with the boss, the below of boss is installed and is prevented static device, and prevents static device and install two, the valve body is close to spheroid upper end and installs sealed urgent injection apparatus of fat, and sealed urgent injection apparatus extends to the inside of valve body, the upper end of sealed urgent injection apparatus of fat is provided with the safety valve cap, the below of safety valve cap is provided with the sealant injection joint, the inside below of sealant injection joint is installed one-way check valve, and one-way check valve installs two, one-way check valve's below is provided with the circulation pipeline, a fireproof structure is arranged between the valve body and the ball body, a water inlet is formed in one end of the valve body, and a water outlet is formed in the other end of the valve body.

Preferably, the fireproof structure comprises sealing washer and seal receptacle, and the seal receptacle is located between valve body and the spheroid, sealing washer and seal receptacle fixed connection, and the one end and the spheroid of sealing washer laminate mutually.

Preferably, the sealing grease emergency injection device is fixedly connected with the valve body, the sealant injection joint is communicated with the flow pipeline, and the one-way check valve is positioned between the sealant injection joint and the flow pipeline.

Preferably, the boss and the valve rod are of an integrated structure, and the boss is attached to the polytetrafluoroethylene thrust pad.

Preferably, the anti-static device is composed of an anti-static spring and an anti-static ball, the anti-static spring is fixedly connected with the anti-static ball, and the anti-static spring and the anti-static ball are respectively attached to the ball body and the valve rod.

Preferably, the valve rod is fixedly connected with the ball body, and the ball body is rotatably connected with the valve body through the valve rod.

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

1. the utility model discloses an adopted sealed urgent injection apparatus of fat, when the valve seat sealing washer damaged because of the accident, connect the butt joint through the sealant injection on will sealed fat and the urgent injection apparatus of sealed fat, and then inject inside, under one-way check valve's effect, sealed fat flows to sealed department through the circulation pipeline, prevents to produce the backward flow phenomenon, through the urgent injection apparatus's of sealed fat installation, prevents that the medium from leaking through the valve rod.

2. The utility model discloses an adopt the built-in structure of valve rod, be provided with the boss through the lower extreme at the valve rod, boss and polytetrafluoroethylene thrust pad can prevent that the valve rod from blowing off because of pipeline internal pressure, even when the conflagration breaks out like this, pack, just push away the bearing and arouse damage such as packing by scaling loss or other reasons, medium pressure in the valve will make boss and valve body upper seal face in close contact with, prevent that the medium from leaking from the packing position of damage in a large number, polytetrafluoroethylene material reduces opening and close the moment of torsion of valve simultaneously, it is more laborsaving to make the operation.

3. The utility model discloses a be provided with fire resistive construction, fire resistive construction comprises seal receptacle and sealing washer, and when the conflagration breaing out, nonmetal such as filler, sealing washer will be burnt out, and the medium of a large amount of leakages can make the intensity of a fire more stretch, enlarge, in case the sealing washer is burnt out, the spheroid will directly contact with the metal covering on the valve body seal receptacle to prevent that the medium from leaking in a large number from the sealing washer of burning out.

4, the utility model discloses a be provided with and prevent electrostatic devices, prevent electrostatic devices by preventing the static spring and prevent that the static ball is constituteed, prevent during the use the static spring and prevent that the static ball laminates with spheroid and valve rod mutually respectively, will gather the electric charge on the spheroid and derive through the static between spheroid and valve rod, valve rod and the valve body, prevent that the medium that easily catches fire from producing static and catching fire.

Drawings

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

FIG. 2 is an enlarged view of the region A structure of the present invention;

FIG. 3 is an enlarged view of the structure of area B of the present invention;

FIG. 4 is a schematic structural view of the ball valve and the sealing seat before burning;

fig. 5 is the structural schematic diagram of the ball valve and the sealing seat after burning.

In the figure: 1. a valve body; 2. a sphere; 3. an antistatic device; 4. a fire-resistant structure; 5. sealing the fat emergency injection device; 6. a boss; 7. an anti-static spring; 8. an antistatic ball; 9. a valve stem; 10. a safety valve cap; 11. a sealant injection fitting; 12. a one-way check valve; 13. a flow conduit; 14. a seal ring; 15. a sealing seat; 16. a water inlet; 17. a water outlet; 18. polytetrafluoroethylene thrust pad.

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.

Referring to fig. 1-5, the present invention provides an embodiment: a fixed type anti-blowout fireproof ball valve comprises a valve body 1, a ball body 2 is mounted inside the valve body 1, a valve rod 9 is arranged at the middle position above the ball body 2, a polytetrafluoroethylene thrust pad 18 is arranged outside the valve rod 9, the polytetrafluoroethylene thrust pad 18 is attached to the valve rod 9, a boss 6 is arranged at the lower end of the valve rod 9, two anti-static devices 3 are mounted below the boss 6, two anti-static devices 3 are mounted at the upper end of the valve body 1 close to the ball body 2, a sealing grease emergency injection device 5 extends into the valve body 1, a safety valve cap 10 is arranged at the upper end of the sealing grease emergency injection device 5, a sealing agent injection connector 11 is arranged below the safety valve cap 10, a one-way check valve 12 is mounted below the inner part of the sealing agent injection connector 11, two one-way check valves 12 are mounted, under the action of the one-way check valve 12, the sealed fat flows to the seal receptacle 15 in through circulation pipeline 13, prevents to produce the backward flow phenomenon, and the below of one-way check valve 12 is provided with circulation pipeline 13, is provided with fire resistive construction 4 between valve body 1 and the spheroid 2, and the one end of valve body 1 is provided with water inlet 16, and the other end of valve body 1 is provided with delivery port 17.

Further, fire resistive construction 4 comprises sealing washer 14 and seal receptacle 15, and seal receptacle 15 is located between valve body 1 and the spheroid 2, sealing washer 14 and seal receptacle 15 fixed connection, and the one end of sealing washer 14 is laminated with spheroid 2 mutually, and in case sealing washer 14 is burnt out, spheroid 2 will directly contact with the metal covering on the seal receptacle 15 to prevent that the medium from leaking in a large number from the seal washer 14 of burning loss.

Further, the sealing grease emergency injection device 5 is fixedly connected to the valve body 1, the sealant injection fitting 11 is communicated with the flow pipe 13, and the one-way check valve 12 is located between the sealant injection fitting 11 and the flow pipe 13 to prevent leakage of a medium through the packing 14 and the valve stem 9.

Further, boss 6 and valve rod 9 structure as an organic whole, and boss 6 and polytetrafluoroethylene thrust pad 18 laminate mutually, and valve rod 9 adopts built-in formula, and the cooperation between boss 6 and the polytetrafluoroethylene thrust pad 18 can prevent that valve rod 9 from blowing out because of the pipeline internal pressure.

Further, prevent that static device 3 comprises antistatic spring 7 and antistatic ball 8, and antistatic spring 7 with prevent that electrostatic ball 8 fixed connection prevents that electrostatic spring 7 and antistatic ball 8 laminate with spheroid 2 and valve rod 9 respectively mutually, avoid lighting easily combustible medium because of the static is struck sparks, ensure system safety.

Further,

valve rod

9 and 2 fixed connection of spheroid, and spheroid 2 rotates through valve rod 9 with valve body 1 to be connected, drives valve rod 9 through equipment and rotates, and valve rod 9 drives spheroid 2 and rotates in valve body 1 and adjusts, and then cuts or put through the medium in the pipeline.

The working principle is as follows: when in use, the sealing grease emergency injection device 5 is arranged above the valve body 1 close to the ball body 2, when the valve seat sealing ring 14 is damaged due to an accident, the sealing grease is butted with the sealing agent injection joint 11 on the sealing grease emergency injection device 5 so as to inject the inside, the sealing grease flows to a sealing position through the flow pipeline 13 under the action of the one-way check valve 12, the backflow phenomenon is prevented, the medium is prevented from leaking through the valve rod 9 through the installation of the sealing grease emergency injection device 5, the boss 6 and the polytetrafluoroethylene thrust pad 18 can prevent the valve rod 9 from being blown out due to the pressure in the pipeline through the arrangement of the boss 6 at the lower end of the valve rod 9, so that the packing and the thrust bearing are damaged due to burning or other reasons even if a fire occurs, and the medium pressure in the valve can lead the boss 6 to be in close contact with the sealing surface on the valve body 1, prevent the medium from leaking from the filler position damaged in a large number, polytetrafluoroethylene material reduces the opening and closing torque of the valve at the same time, make the operation more laborsaving, through having fire prevention structure 4, fire prevention structure 4 is made up of seal receptacle 15 and seal ring 14, when the conflagration breaks out, nonmetal such as filler, seal ring 14 will be burnt out, the medium of a large amount of leakages may promote the intensity of a fire to spread, enlarge, once seal ring 14 is burnt out, spheroid 2 will contact with metal surface on the seal receptacle 15 of valve block 1 directly, thus prevent the medium from leaking from the seal ring 14 that burns out in a large number, through having antistatic device 3 in valve stem 9, antistatic device 3 is made up of antistatic spring 7 and antistatic ball 8, antistatic spring 7 and antistatic ball 8 are laminated with spheroid 2 and valve stem 9 separately during use, will gather the electric charge on spheroid 2 and valve stem 9 through spheroid 2, Static electricity between the valve rod 9 and the valve body 1 is led out, and static electricity ignition of easily ignited media is prevented.

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. The utility model provides a fixed fire prevention ball valve of blowing off of preventing, includes valve body (1), its characterized in that: the internally mounted of valve body (1) has spheroid (2), the intermediate position department of spheroid (2) top is provided with valve rod (9), the outside of valve rod (9) is provided with polytetrafluoroethylene thrust pad (18), and polytetrafluoroethylene thrust pad (18) laminate mutually with valve rod (9), the lower extreme of valve rod (9) is provided with boss (6), anti-static device (3) is installed to the below of boss (6), and prevents that static device (3) installs two, valve body (1) is close to the upper end of spheroid (2) and installs sealed urgent injection apparatus (5) of fat, and sealed urgent injection apparatus (5) of fat extend to the inside of valve body (1), the upper end of sealed urgent injection apparatus (5) of fat is provided with safety valve cap (10), the below of safety valve cap (10) is provided with sealant injection joint (11), one-way check valve (12) are installed to the inside below of sealant injection joint (11), and one-way check valve (12) install two, the below of one-way check valve (12) is provided with runner pipe (13), be provided with fire resistive construction (4) between valve body (1) and spheroid (2), the one end of valve body (1) is provided with water inlet (16), the other end of valve body (1) is provided with delivery port (17).

2. A fixed type blowout prevention fire prevention ball valve according to claim 1, wherein: fireproof structure (4) comprises sealing washer (14) and seal receptacle (15), and seal receptacle (15) are located between valve body (1) and spheroid (2), sealing washer (14) and seal receptacle (15) fixed connection, and the one end and spheroid (2) of sealing washer (14) are laminated mutually.

3. A fixed type blowout prevention fire prevention ball valve according to claim 1, wherein: the sealing grease emergency injection device (5) is fixedly connected with the valve body (1), the sealant injection joint (11) is communicated with the flow pipeline (13), and the one-way check valve (12) is positioned between the sealant injection joint (11) and the flow pipeline (13).

4. A fixed type blowout prevention fire prevention ball valve according to claim 1, wherein: boss (6) and valve rod (9) structure as an organic whole, and boss (6) and polytetrafluoroethylene thrust pad (18) are laminated mutually.

5. A fixed type blowout prevention fire prevention ball valve according to claim 1, wherein: prevent static device (3) by preventing static spring (7) and prevent that static ball (8) constitute, and prevent static spring (7) and prevent static ball (8) fixed connection, prevent static spring (7) and prevent that static ball (8) laminate with spheroid (2) and valve rod (9) respectively mutually.

6. A fixed type blowout prevention fire prevention ball valve according to claim 1, wherein: the valve rod (9) is fixedly connected with the ball body (2), and the ball body (2) is rotatably connected with the valve body (1) through the valve rod (9).