CN210978638U

CN210978638U - Explosion-proof automatic check valve for ventilating duct of inflammable and explosive clean workshop

Info

Publication number: CN210978638U
Application number: CN201921336970.3U
Authority: CN
Inventors: 赵志华; 杨琦
Original assignee: Wuhan Century Baima System Engineering Co ltd
Current assignee: Wuhan Century Baima System Engineering Co ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-07-10
Anticipated expiration: 2029-08-19

Abstract

The utility model discloses an explosion-proof automatic check valve for on inflammable and explosive clean factory building air pipe, including valve body angle steel flange and single valve gap, the welding of valve body angle steel flange bottom has interior support angle steel hinge, the welding of interior support angle steel hinge bottom has single valve hole seat angle steel, the welding has rings ring seat on the single valve gap, rings ring seat welds in the centre of single valve gap, the lifting rope is installed to rings ring seat bottom, the counter weight sand bag is installed to the one end of lifting rope, valve gap sealing washer and single valve cover tang are installed to single valve hole seat angle steel bottom, the single valve cover tang is installed to valve gap sealing washer one side, the single valve tang is located the right side of sealing washer valve gap, and this is used for inflammable and explosive clean factory building air pipe on the automatic check valve novel in design, rational in infrastructure, the function is various.

Description

Explosion-proof automatic check valve for ventilating duct of inflammable and explosive clean workshop

Technical Field

The utility model relates to a check valve equipment technical field specifically is an explosion-proof automatic check valve for on inflammable and explosive clean factory building air pipe.

Background

Nowadays, explosion-proof automatic check valve plays the effect of lifting the weight in people's life, because it has automatic separation combustible gas, fire-proof, explosion-proof function, consequently people are applied to it in various flammable and explosive clean factory buildings usually to avoid the factory building to have a power failure suddenly, lead to the phenomenon of dangerous gas adverse current, check valve in the past does not have airtight combustible gas's function, only for symbolic closing, and when the tuber pipe cross-section is big, drawbacks such as opening difficulty can appear in the check valve.

Therefore, how to design an anti-explosion automatic check valve used on a ventilating duct of a flammable and combustible clean factory building becomes a problem to be solved at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an explosion-proof automatic check valve for on inflammable and explosive clean factory building air pipe to solve the problem that proposes in the above-mentioned background art, the utility model relates to a novelty, portable, the availability factor is higher.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an explosion-proof automatic check valve for on clean factory building air pipe of inflammable and explosive, includes valve body angle steel flange and single valve gap, the welding of valve body angle steel flange bottom has interior support angle steel hinge, the welding of interior support angle steel hinge bottom has single valve hole seat angle steel, the welding has the lifting rope ring seat on the single valve gap, the lifting rope ring seat welds in the centre of single valve gap, the lifting rope is installed to lifting rope ring seat bottom, the counter weight sand bag is installed to the one end of lifting rope, valve gap sealing washer and single valve gap are installed to single valve hole seat angle steel bottom, the single valve gap is installed to valve gap sealing washer one side, the single valve gap is located the right side of valve gap sealing washer.

As a preferred embodiment of the utility model, the quantity of lifting rope and counter weight sand bag is 1.

As a preferred embodiment of the present invention, the number of the single valve covers and the lifting rope ring seats is 3.

As a preferred embodiment of the present invention, the single valve hole seat angle steel and the single valve cover are connected by a hinge.

The utility model has the advantages that: the utility model discloses an explosion-proof automatic check valve for on inflammable and explosive clean factory building air pipe, support angle steel hinge, single valve hole seat angle steel, valve gap sealing washer, single valve cover tang, single valve gap, lifting rope ring seat, lifting rope, counter weight sand bag in valve body angle steel flange,.

1. The explosion-proof automatic check valve can be connected with a single valve bonnet through a single valve hole seat angle steel through a hinge, and is larger in opening angle and tighter in closing compared with a check valve (horizontal type) adopted in the prior art.

2. The explosion-proof automatic check valve can break the symbolic closing of the conventional check valve through the valve cover sealing ring and the single valve cover spigot, and realizes the real separation of combustible gas.

3. The anti-explosion automatic check valve can be closed by adopting non-vertical gravity through the lifting ring seat, the lifting rope and the counterweight sand bag, thereby preventing the common false closing phenomenon of the conventional check valve.

Drawings

FIG. 1 is a schematic view of the front view structure of the explosion-proof automatic check valve used on the ventilating duct of the inflammable and explosive clean factory building of the present invention;

FIG. 2 is a schematic left-side view structural diagram of an explosion-proof automatic check valve used on an air duct of a flammable and explosive clean factory building of the utility model;

FIG. 3 is a right side view structural schematic diagram of the explosion-proof automatic check valve used on the ventilating duct of the inflammable and explosive clean factory building of the utility model;

FIG. 4 is a schematic view of a partial structure of an explosion-proof automatic check valve used on an air duct of a flammable and combustible clean factory building;

in the figure: 1-valve body angle steel flange, 2-inner support angle steel hinge, 3-single valve hole seat angle steel, 4-valve cover sealing ring, 5-single valve cover spigot, 6-single valve cover, 7-lifting rope ring seat, 8-lifting rope and 9-counterweight sand bag.

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 to 4, the present invention provides a technical solution: the utility model provides an explosion-proof automatic check valve for on clean factory building air pipe of inflammable and explosive, includes valve body angle steel flange 1 and single valve gap 6, the welding of 1 bottom of valve body angle steel flange has interior support angle steel hinge 2, the welding of 2 bottoms of interior support angle steel hinge has single valve hole seat angle steel 3, the welding has lifting rope ring seat 7 on the single valve gap 6, lifting rope ring seat 7 welds in the centre of single valve gap 6, lifting rope 8 is installed to lifting rope ring seat 7 bottom, counter weight sand bag 9 is installed to the one end of lifting rope 8, valve gap sealing washer 4 and single valve gap 5 are installed to 3 bottoms of single valve hole seat angle steel, single valve gap 5 is installed to sealing washer valve gap 4 one side, single valve gap 5 is located the right side of valve gap sealing washer 4.

As a preferred embodiment of the utility model, the number of the lifting rope 8 and the counterweight sandbag 9 is 1.

As a preferred embodiment of the present invention, the number of the single valve covers 6 and the lifting rope ring seats 7 is 3.

As a preferred embodiment of the present invention, the single valve hole seat angle steel 3 and the single valve cover 6 are connected by a hinge.

The working principle is as follows: when the device is used, firstly, the single valve hole seat angle steel 3 is connected with the single valve cover 6 through a hinge, the single valve cover 6 rotates by taking the single valve hole seat angle steel 3 as a center, so that the opening angle is larger and the closing is tighter than the horizontal opening angle of a check valve adopted in the prior art, the device is provided with 3 single valve covers 6, the size of a valve body is formulated along the section of a wind pipe in the prior art, when the section is large, the section of the wind pipe is generally about 0.8-1 square meter, the check valve is difficult to open, and the device is a multi-valve plate assembly, so that the difficulty is overcome;

the bottom of the single valve hole seat angle steel 3 is provided with a valve cover sealing ring 4 and a single valve cover spigot 5, one side of the valve cover sealing ring 4 is provided with the single valve cover spigot 5, the single valve spigot 5 is positioned at the right side of the valve cover sealing ring 4, the closing of the prior air pipe check valve is symbolic, and the requirement of airtight isolation of combustible gas is absent, and the device adopts the valve cover sealing ring 4 and the single valve cover spigot 5, so that the inlet and outlet of the combustible gas are blocked;

the welding has rings rope socket 7 on the single valve gap 6, rings ring socket 7 welds in the centre of single valve gap 6, and lifting rope 8 is installed to rings rope socket 7 bottom, and counter weight sand bag 9 is installed to the one end of lifting rope, and the non-perpendicular gravity that this device adopted is closed to prevent the common false closed phenomenon of check valve in the past.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may include only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments as will be apparent to those skilled in the art.

Claims

1. The utility model provides an explosion-proof automatic check valve for on clean factory building air pipe of inflammable and explosive which characterized in that: including valve body angle steel flange (1) and single valve gap (6), the welding of valve body angle steel flange (1) bottom has interior support angle steel hinge (2), interior support angle steel hinge (2) bottom welding has single valve hole seat angle steel (3), the welding has lifting rope ring seat (7) on single valve gap (6), lifting rope ring seat (7) weld in the centre of single valve gap (6), lifting rope (8) are installed to lifting rope ring seat (7) bottom, counter weight sand bag (9) are installed to the one end of lifting rope (8), valve gap sealing washer (4) and single valve cap tang (5) are installed to single valve hole seat angle steel (3) bottom, single valve gap tang (5) are installed to valve gap sealing washer (4) one side, single valve gap tang (5) are located the right side of valve gap sealing washer (4).

2. The anti-explosion automatic check valve used on the ventilating duct of the flammable and combustible clean factory building according to claim 1, characterized in that: the number of the lifting ropes (8) and the counterweight sandbags (9) is 1.

3. The anti-explosion automatic check valve used on the ventilating duct of the flammable and combustible clean factory building according to claim 1, characterized in that: the number of the single valve covers (6) and the lifting rope ring seats (7) is 3.

4. The anti-explosion automatic check valve used on the ventilating duct of the flammable and combustible clean factory building according to claim 1, characterized in that: the single valve hole seat angle steel (3) is connected with the single valve cover (6) through a hinge.