CN218818409U

CN218818409U - Low-temperature breaking valve

Info

Publication number: CN218818409U
Application number: CN202223337732.9U
Authority: CN
Inventors: 冯是公; 黄涛; 秦栋成
Original assignee: Jiangsu Changlong Petrochemical Equipment Co ltd
Current assignee: Jiangsu Changlong Petrochemical Equipment Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-04-07
Anticipated expiration: 2032-12-13

Abstract

The utility model belongs to the technical field of the low temperature control valve technique and specifically relates to a low temperature snapping valve, including male valve body and female valve body, male valve body and female valve body inside all have a spring holder through screw fixed mounting. The utility model has the advantages that: the low-temperature breaking valve of the utility model can solve the problem that the crane pipe is not broken and the crane pipe parts are damaged when the vehicle is directly driven away; the vehicle can be directly driven away in an emergency, and the pipeline is not leaked; when the breaking valve is not broken, two layers of seals are arranged, so that the leakage phenomenon generated under the low-temperature condition is well avoided; even if the pressure in the pipeline is low, the valve clack can be pushed out well by the thrust of the spring, and the sealing after the snapping is realized; when the sealing ring is compressed, a fixed proper compression amount is provided, and sealing is easy to realize.

Description

Low-temperature breaking valve

Technical Field

The utility model belongs to the technical field of the low temperature control valve technique and specifically relates to a low temperature snapping valve.

Background

In the process of loading and unloading tank trucks on roads, railways and the like, if the vehicles need to leave quickly in case of emergency, connecting parts such as a loading arm and the like can be damaged by pulling the vehicles away directly, and the mode of disconnecting the flange consumes time and labor. The existing low-temperature snapping valve sealing structure is not well positioned, the deformation of a sealing ring is not controlled by compression, and the leakage phenomenon is easy to generate during sealing.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the problems existing in the background technology, the improved low-temperature abruption valve is provided, and the problems that the existing sealing structure of the low-temperature abruption valve is not well positioned, the deformation of a sealing ring is not controlled, and the leakage phenomenon is easy to generate during sealing are solved.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a low temperature abruption valve, includes male valve body and female valve body, male valve body and female valve body inside all have the spring holder through screw fixed mounting, compression spring has been cup jointed in the spring holder outside, spring holder non-fixed assembly end has the valve clack seat through compression spring elastic assembly, the inside grafting of valve clack seat lower extreme trompil in the male valve body is fixed with male ejector pin, the inside grafting of valve clack seat upper end trompil in the female valve body is fixed with female ejector pin, the assembly end outside of male valve body and female valve body is through abruption bolt fastening assembly, male valve body and female valve body internal side are located the assembly face and are equipped with the disk seat through bolt fastening.

The valve clack seat side wall is located the public ejector pin, female ejector pin periphery all fixed cup joints the valve clack, cup joint the disk seat sealing washer between valve clack seat and the valve clack assembly end.

And secondary sealing rings are arranged between the male valve body and the valve seat assembling surface and between the female valve body and the valve seat assembling surface.

And the assembling surfaces of the male valve body and the female valve body are provided with main sealing rings.

And the valve clack seat is provided with a spring positioning groove matched with the compression spring.

Lateral bulges for installing the snapping bolts are arranged on the outer side faces of the male valve body and the female valve body.

The utility model has the advantages that:

(1) The low-temperature breaking valve of the utility model can solve the problem that the crane pipe is not broken and the crane pipe parts are damaged when the crane is directly driven away;

(2) The vehicle can be directly driven away in an emergency, and the pipeline is not leaked;

(3) When the snap-off valve is not snapped, two layers of sealing are arranged, so that the leakage phenomenon generated under the low-temperature condition is well avoided;

(4) Even if the pressure in the pipeline is low, the valve clack can be pushed out well by the thrust of the spring, and the sealing after the snapping is realized;

(5) When the sealing ring is compressed, a fixed proper compression amount is provided, and sealing is easy to realize.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic diagram of the internal structure of the present invention.

Fig. 2 is a partial cross-sectional view of the assembly end of the male and female valve bodies of the present invention.

Fig. 3 is a partial cross-sectional view of the valve seat mounting end of the present invention.

Fig. 4 is a partial cross-sectional view of the middle spring seat mounting end of the present invention.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Fig. 1 and the low temperature abruption valve that fig. 2 shows, including male valve body 1 and female valve body 10, there is spring holder 4 male valve body 1 and the inside screw fixed mounting that all passes through of female valve body 10, compression spring 3 has been cup jointed in the spring holder 4 outside, spring holder 4 non-fixed fitting end is through compression spring 3 elastic assembly valve clack seat 5, the inside grafting of 5 lower extreme trompils of valve clack seat in the male valve body 1 is fixed with public ejector pin 15, the inside grafting of 5 upper end trompils of valve clack seat in the female valve body 10 is fixed with female ejector pin 14, male valve body 1 and the outside of female valve body 10 fitting end are through abruption bolt 8 fixed assembly, male valve body 1 and female valve body 10 medial surface are located and are equipped with disk seat 11 through bolt 9 fixed assembly on the fitting surface.

Valve clack 13 is fixedly sleeved on the peripheries of male ejector rod 15 and female ejector rod 14 on the side wall of valve clack seat 5, and valve seat sealing ring 6 is sleeved between the assembling ends of valve clack seat 5 and valve clack 13.

And secondary sealing rings 7 are arranged between the assembling surfaces of the male valve body 1 and the valve seat assembling 5 and between the assembling surfaces of the female valve body 10 and the valve seat 11.

The assembling surface of the male valve body 1 and the female valve body 10 is provided with a main sealing ring 12.

And a spring positioning groove matched with the compression spring 3 is arranged on the valve flap seat 5.

Lateral projections for mounting the snap bolts 8 are provided on the outer side of the male valve body 1 and the female valve body 10.

In FIG. 2, the male valve body and the female valve body are in positioning contact at the positions A and B, so that the central lines of the male valve body and the female valve body are overlapped after the male valve body and the female valve body are installed; the male valve body and the female valve body are connected and fastened through the snap bolt 8.

In fig. 3, the valve seat 11 and the male valve body 1 are in contact with the female valve body 10 at the position F, so that the secondary sealing ring 7 is ensured to obtain a fixed compression amount (axial direction). The male valve body 1 contacts the female valve body 10 at the position G, ensuring that the main seal ring 12 obtains a fixed compression (radial).

In fig. 4, the spring seat 4 is bolted to the male valve body 1 and the female valve body 10 at H (keeping the center lines concentric with the male valve body 1 and the female valve body 10), respectively. The valve clack seat 5 and the spring seat 4 slide mutually at the position I, and the central line of the valve clack seat 5 has proper concentricity with the central lines of the male valve body 1 and the female valve body 10 in the sliding process; after the breaking valve is broken, the valve clack seat 5 is pushed out along the position I by the compression spring 3. Valve clack seat 5 and valve seat 11 are in the cooperation of J position, and valve clack seat 5 is spacing here, and valve clack seat 5 and valve seat 11 form 6 grooves of valve seat sealing washer in K position this moment, and valve seat sealing washer 6 obtains certain compression volume. In the process that the compression spring 3 extends out, the central line of the valve clack seat 5 is superposed with the central line of the valve seat 11;

the low-temperature breaking valve of the utility model can solve the problem that the crane pipe is not broken and the crane pipe parts are damaged when the vehicle is directly driven away; the vehicle can be directly driven away in an emergency, and the pipeline is not leaked; when the breaking valve is not broken, two layers of seals are arranged, so that the leakage phenomenon generated under the low-temperature condition is well avoided; even if the pressure in the pipeline is low, the valve clack 13 can be pushed out well by the thrust of the compression spring 3, and the sealing after the snapping is realized; when the sealing ring is compressed, a fixed proper compression amount is provided, and sealing is easy to realize.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a low temperature abruption valve, includes male valve body (1) and female valve body (10), characterized by: male valve body (1) and female valve body (10) inside all through screw (2) fixed mounting have spring holder (4), compression spring (3) have been cup jointed in the spring holder (4) outside, spring holder (4) non-fixed fitting end is through compression spring (3) elastic assembly valve clack seat (5), valve clack seat (5) lower extreme trompil inside grafting in male valve body (1) is fixed with public ejector pin (15), valve clack seat (5) upper end trompil inside grafting in female valve body (10) is fixed with female ejector pin (14), male valve body (1) and female valve body (10) fitting end outside is through breaking bolt (8) fixed assembly, male valve body (1) and female valve body (10) medial surface are located the fitting face and are equipped with disk seat (11) through bolt (9) fixed assembly.

2. The cryogenic break valve according to claim 1, characterized in that: valve clack seat (5) lateral wall be located public ejector pin (15), female ejector pin (14) periphery all fixed cup joint have valve clack (13), cup joint between valve clack seat (5) and valve clack (13) assembly end has disk seat sealing washer (6).

3. The cryogenic break valve according to claim 1, characterized in that: and secondary sealing rings (7) are arranged between the male valve body (1) and the valve seat assembling surface and between the female valve body (10) and the valve seat assembling surface.

4. The cryogenic break valve according to claim 1, characterized in that: and a main sealing ring (12) is arranged on the assembling surface of the male valve body (1) and the female valve body (10).

5. The cryogenic break valve according to claim 1, characterized in that: and a spring positioning groove matched with the compression spring (3) is arranged on the valve flap seat (5).

6. The cryogenic break valve according to claim 1, characterized in that: lateral protrusions used for installing the snapping bolts (8) are arranged on the outer side faces of the male valve body (1) and the female valve body (10).