CN111550564A

CN111550564A - Breather valve sealing device

Info

Publication number: CN111550564A
Application number: CN202010454495.0A
Authority: CN
Inventors: 崔学文; 袁玮骏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2020-08-18

Abstract

The utility model provides a breather valve sealing device, belongs to sealed technical field, including steel ring, sealed child, fill the valve, the steel ring links to each other with the valve disc outer lane welding of breather valve, in the steel ring was arranged in to sealed child, the sealed position of sealed child lower part covers gap between the valve disc of breather valve and the disk seat completely, sealed child packs has the buffer medium, be equipped with on the sealed child and fill the valve. According to the invention, the contact position of the valve disc of the breather valve and the valve seat of the breather valve is changed into flexible contact, so that the leakage of the valve disc of the breather valve can be effectively reduced, the unopened frequency of the valve disc of the breather valve is effectively reduced, and the sealing property is ensured.

Description

Breather valve sealing device

Technical Field

The invention belongs to the technical field of sealing, and particularly relates to a breather valve sealing device.

Background

The breather valve is a safe and energy-saving product for maintaining the air pressure balance of the storage tank and reducing the volatilization of the medium, the breather valve fully utilizes the bearing capacity of the storage tank to reduce the discharge of the medium, and the principle of the breather valve is to utilize the weight of a positive-negative pressure valve disc to control the positive exhaust pressure and the negative suction pressure of the storage tank; when the medium is pumped out of the tank, the pressure of the upper gas space in the tank is reduced, and the operation negative pressure of the breather valve is reached, the negative pressure valve disc of the top breather valve is pushed open by the atmosphere outside the tank, so that the external gas enters the tank, the pressure in the tank is not reduced any more, the pressure inside the tank is balanced with the pressure outside the tank, and the safety device of the storage tank is protected.

At present, traditional breather valve seal structure, because be hard contact between valve disc and the disk seat, so lead to when breather valve has not arrived opening pressure yet, the breather valve disc will open in advance, this can be that the jar internal medium reveals away, and after this kind of hard contact action time is longer, the sealed face on the valve disc often can appear the damage, then more can bring sealed not tight for the breather valve, it is great to leak the volume, easily opens the scheduling problem in advance.

Disclosure of Invention

The invention aims to provide a novel breather valve sealing device, wherein the contact position of a breather valve disc and a breather valve seat is set to be in flexible contact, so that the leakage of the breather valve disc can be effectively reduced, the unopened frequency of the breather valve disc is effectively reduced, and the sealing property is ensured.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a breather valve sealing device, includes steel ring, sealed child, fill the valve, the steel ring links to each other with the valve disc outer lane welding of breather valve, in the steel ring was arranged in to sealed child, the sealed position of sealed child lower part covers the gap between the valve disc of breather valve and the disk seat completely, sealed child packs has the buffering medium, be equipped with on the sealed child and fill the valve.

Further, the weight of the device and the weight of the breather valve disc satisfy the breather valve opening pressure.

Further, the inner ring of the steel ring is matched with the outer ring of the valve disc of the breather valve.

Furthermore, the steel ring is annular, the lower part of the steel ring is provided with an opening for installing the sealing tire and exposing the sealing part at the lower part of the sealing tire, and the steel ring is provided with a charging valve installation hole.

Further, the radius of the steel ring is more than 0.5 mm.

Further, the section of the steel ring is square or round or in other shapes.

Further, the sealing tire is a closed ring made of a polytetrafluoroethylene hose or other elastic material with a non-adhesive surface.

Further, the sealing tire is matched with the inner space of the steel ring.

Furthermore, the number of the filling valves is one or more, the filling valves are installed on the sealing tire, penetrate through the filling valve installation holes in the steel ring and are fixed through bolts.

Further, the buffer medium is non-volatile, does not deteriorate and has a certain fluidity in the temperature range of-60 ° to 500 °.

Compared with the prior art, the invention has the beneficial effects that: the flexible contact is set at the contact position of the valve disc of the breather valve and the valve seat of the breather valve, so that the leakage rate of the valve disc of the breather valve can be effectively reduced, the unopened frequency of the valve disc of the breather valve is effectively reduced, the sealing performance is ensured, and the flexible contact type breather valve can be widely applied to the field of sealing of the breather valve.

Drawings

FIG. 1 is a schematic structural view of a novel sealing structure of a breather valve according to the present invention;

FIG. 2 is a schematic top view of the steel ring;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic top view of the sealing tire;

fig. 5 is a sectional view taken along line a-a in fig. 4.

The components in the figure: 1-valve seat, 2-valve disc, 3-steel ring, 4-sealing tire, 5-charging valve, 6-buffer medium.

Detailed Description

The technical solution in the embodiments of the present invention is clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A breather valve sealing device comprises a steel ring, a sealing tire, a charging valve and a buffer medium; the steel ring is connected with the valve disc of the breather valve in a welding mode, and the sealing tire is arranged in the steel ring and is in contact with the valve seat of the breather valve. The sealing tire is connected with an inflation valve, and the buffering medium can be filled into the sealing tire through the inflation valve. The seal plus the weight of the breather valve disk should meet the breather valve opening pressure. The radius of the steel ring annular body is larger than or equal to the radius of the valve disc, the radius of the steel ring is larger than 0.5mm, and a round hole is formed in the steel ring so that the filling valve can be installed conveniently. The section of the steel ring can be in any shape of square or round. The section of the steel ring is provided with a gap, and the sealed tyre can be placed in the gap. The sealing tyre is a closed ring made of a polytetrafluoroethylene hose or other elastic materials with non-adhesive surfaces. The sealing tire can be in any shape such as square or round, and the size of the sealing tire can be placed into the steel ring. The sealing tire is placed into the steel ring before liquid is not injected, and the sealing tire is filled with liquid through the filling valve. The filling valve can be one or more. The filling valve is arranged on the sealing tyre and can pass through the steel ring and be fixed by bolts. The filling valve can be opened and the buffer medium can be filled into the sealed tyre. The buffer medium is required to be non-volatile, not to deteriorate and to have certain fluidity within the range of-60 ℃ to 500 ℃. The buffer medium may be a liquid or a gas.

Example 1

Referring to fig. 1 to 5, in an embodiment of the present invention, a breather valve sealing device includes a steel ring, a sealing tire, a charging valve, and a buffer medium; the steel ring is connected with the valve disc of the breather valve in a welding mode, and the sealing tire is arranged in the steel ring and is in contact with the valve seat of the breather valve. The sealing tire is connected with an inflation valve, and the buffering medium can be filled into the sealing tire through the inflation valve. The seal plus the weight of the breather valve disk should meet the breather valve opening pressure. The radius of the steel ring annular body is larger than or equal to the radius of the valve disc, the radius of the steel ring is larger than 0.5mm, and a round hole is formed in the steel ring so that the filling valve can be installed conveniently. The section of the steel ring can be circular. The section of the steel ring is provided with a gap, and the sealed tyre can be placed in the gap. The sealing tyre is a closed ring made of a polytetrafluoroethylene hose or other elastic materials with non-adhesive surfaces. The sealing tire is circular, and the size of the sealing tire can be placed into the steel ring. The sealing tire is placed into the steel ring before liquid is not injected, and the sealing tire is filled with liquid through the filling valve. The filling valve can be one or more. The filling valve is arranged on the sealing tyre and can pass through the steel ring and be fixed by bolts. The filling valve can be opened and the buffer medium can be filled into the sealed tyre. The buffer medium is required to be non-volatile, not to deteriorate and to have certain fluidity within the range of-60 ℃ to 500 ℃.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a breather valve sealing device, its characterized in that includes steel ring (3), sealed child (4), fill valve (5), steel ring (3) link to each other with the valve disc (2) outer lane welding of breather valve, sealed child (4) are arranged in steel ring (3), the sealed position of sealed child (4) lower part covers gap between valve disc (2) and the disk seat (1) of breather valve completely, sealed child (4) are filled there is buffer medium (6), be equipped with on sealed child (4) and fill valve (5).

2. The breather valve seal of claim 1, wherein the weight of the device and the weight of the breather valve disk satisfy a breather valve opening pressure.

3. A breather valve seal according to claim 1, in which the inner ring of the steel ring (3) matches the outer ring of the valve disc (2) of the breather valve.

4. A breather valve seal device according to claim 3, wherein the steel ring (3) is ring-shaped, the lower part of the steel ring is provided with an opening for installing the seal tyre (4) and exposing the lower seal part of the seal tyre (4), and the steel ring (3) is provided with a mounting hole for the charging valve (5).

5. A breather valve seal according to claim 3 in which the steel rim radius is greater than 0.5 mm.

6. A breather valve seal assembly according to claim 3 in which the cross-section of the steel ring (3) is square or circular or other shape.

7. A breather valve seal according to claim 1 in which the sealing tyre (4) is a closed ring of teflon hose or other resilient and surface non-adhesive material.

8. A breather valve seal according to claim 1, in which the sealing tyre (4) is adapted to the internal space of the steel ring (3).

9. The breather valve sealing device according to claim 4, wherein the number of the charging valves (5) is one or more, and the charging valves (5) are mounted on the sealing tire (4) and pass through mounting holes of the charging valves (5) on the steel ring (3) to be fixed through bolts.

10. A breather valve seal according to claim 1, in which the buffer medium (6) is non-volatile, non-deteriorating and of a certain fluidity in the temperature range-60 ° to 500 °.