CN213776500U

CN213776500U - Ultrahigh pressure safety shut-off valve

Info

Publication number: CN213776500U
Application number: CN202022255525.3U
Authority: CN
Inventors: 邹文胜
Original assignee: Zigong Ti Well Valve Manufacturing Co ltd
Current assignee: Zigong Ti Well Valve Manufacturing Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-07-23
Anticipated expiration: 2030-10-12

Abstract

The utility model discloses an ultrahigh pressure safety shut-off valve, including valve body, spring and actuating mechanism, the spring mounting is inside the valve body, actuating mechanism installs inside the valve body, uses with the spring cooperation, actuating mechanism includes valve rod and piston, the piston is installed on the inside top of valve body, the valve rod is installed in the piston below, uses with the piston cooperation. The utility model discloses simple structure, convenient operation, balancing unit's design for safe block valve can be faster, more easily resume operating condition after cutting, the design of top-mounted formula, make the staff need not pull down the valve body from the pipeline in the maintenance process, thereby maintain more easily, the maintenance cost is lower, the long-range cut-off control of three way solenoid valve makes under emergency staff can the distant ground close this equipment, prevent the low reaches superpressure.

Description

Ultrahigh pressure safety shut-off valve

Technical Field

The utility model belongs to the valve field, concretely relates to super high pressure safety shut-off valve.

Background

The typical pressure control system of the gas distribution station mainly comprises a safety cut-off valve, a monitoring pressure regulator and a flow (pressure) regulating valve for work, wherein the safety cut-off valve is an emergency quick cut-off valve arranged at the front end of the pressure regulator, and when the pressure regulator is damaged or the downstream pressure is suddenly increased, the safety cut-off valve can immediately cut off the supply of gas so as to prevent the occurrence of adverse accidents. The safety shut-off valve mainly comprises a valve body, a spring and an actuating mechanism, the existing safety shut-off valve is designed in an axial flow mode, and the existing safety shut-off valve needs to be detached from a pipeline during maintenance.

The inventor finds that the prior arts have at least the following technical problems in the practical use process:

1. the existing safety shut-off valves are mostly shut off under ultrahigh pressure, and the shut-off valves are mostly limited to the pressure within the range of 100bar and cannot be remotely shut off and protected under low pressure;

2. the safety shut-off valve is designed in an axial flow mode, and needs to be detached from a pipeline during maintenance, and due to deformation of internal stress of the pipeline, a worker is particularly difficult to mount the maintained equipment again.

Disclosure of Invention

For overcoming above-mentioned not enough that exists, the utility model discloses an inventor is through long-term exploration attempt and many times's experiment and effort, constantly reform transform and the innovation, a superhigh pressure safety shut-off valve is proposed, it has adopted balancing unit's design, make safety shut-off valve can be faster after cutting, recover operating condition more easily, the design of top mounted formula has been adopted simultaneously, make the staff need not pull down the valve body from the pipeline in the maintenance process, thereby maintain more easily, maintenance cost is lower, in addition, the long-range cut-off control of tee bend solenoid valve makes the staff can close this equipment by long distance under emergency, prevent the low reaches superpressure.

In order to realize the purpose, the utility model adopts the technical scheme that: the utility model provides an ultrahigh pressure safety shut-off valve, includes valve body, spring and actuating mechanism, spring mounting is inside the valve body, actuating mechanism installs inside the valve body, uses with the spring cooperation, actuating mechanism includes valve rod and piston, the piston is installed on the inside top of valve body, the valve rod is installed in the piston below, uses with the piston cooperation.

According to the utility model relates to an ultrahigh pressure safety shut-off valve, its further preferred technical scheme is: and a valve seat for supporting is also arranged below the valve rod.

According to the utility model relates to an ultrahigh pressure safety shut-off valve, its further preferred technical scheme is: and a valve port for controlling gas to enter and exit is also arranged in the valve body.

According to the utility model relates to an ultrahigh pressure safety shut-off valve, its further preferred technical scheme is: a button body for adjusting the air pressure of the valve body is also arranged outside the valve body.

According to the utility model relates to an ultrahigh pressure safety shut-off valve, its further preferred technical scheme is: the button body is detachably mounted on the lower side of the outside of the valve body.

According to the utility model relates to an ultrahigh pressure safety shut-off valve, its further preferred technical scheme is: the button body is provided with a button rod.

According to the utility model relates to an ultrahigh pressure safety shut-off valve, its further preferred technical scheme is: an eccentric shaft for closing the valve port is also arranged outside the valve body.

According to the utility model relates to an ultrahigh pressure safety shut-off valve, its further preferred technical scheme is: the eccentric shaft is detachably installed at an outer upper side of the valve body.

According to the utility model relates to an ultrahigh pressure safety shut-off valve, its further preferred technical scheme is: the safety shut-off valve is suitable for the condition that the inlet pressure can be used only when reaching 300 bar.

According to the utility model relates to an ultrahigh pressure safety shut-off valve, its further preferred technical scheme is: the safety cut-off valve can carry out remote cut-off control through a three-way electromagnetic valve.

Compared with the prior art, the technical scheme of the utility model have following advantage beneficial effect:

1. the design of the balancing device enables the safety cut-off valve to recover the working state more quickly and easily after being cut off;

2. the top-mounted design ensures that a worker does not need to detach the valve body from the pipeline in the maintenance process, so that the maintenance is easier and the maintenance cost is lower;

3. the remote cut-off control of the three-way electromagnetic valve enables a worker to remotely close the equipment in an emergency, and downstream overpressure is prevented.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the button body of the present invention.

Fig. 3 is a schematic structural view of the eccentric shaft of the present invention.

The labels in the figure are respectively: 1. a valve port; 2. a valve stem; 3. a piston; 4. a button body; 5. a valve seat; 6. a valve body; 7. an eccentric shaft.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are 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. Thus, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the claimed invention, but is merely representative of selected embodiments of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

Example (b):

as shown in fig. 1, the utility model provides an ultrahigh pressure safety shut-off valve, including valve body 6, spring and actuating mechanism, the spring mounting is inside valve body 6, actuating mechanism installs inside valve body 6, uses with the spring fit, its characterized in that, actuating mechanism includes valve rod 2 and piston 3, piston 3 installs on the inside top of valve body 6, valve rod 2 is installed in piston 3 below, uses with the cooperation of piston 3.

Specifically, a valve seat 5 serving as a support is further installed below the valve stem 2, and a valve port 1 for controlling the inflow and outflow of gas is further provided inside the valve body 6.

In addition, a button body 4 for adjusting the air pressure of the valve body 6 is also arranged outside the valve body 6, the button body 4 is detachably arranged at the lower side outside the valve body 6, and a button rod is arranged on the button body 4.

In addition, an eccentric shaft 7 for closing the valve port 1 is mounted outside the valve body 6, and the eccentric shaft 7 is detachably mounted on the upper side outside the valve body 6.

It is worth mentioning that the safety shut-off valve is suitable for the condition that the inlet pressure can be used only when reaching 300bar, and the safety shut-off valve can be remotely controlled by a three-way electromagnetic valve.

The using method comprises the following steps:

the utility model discloses a valve port 1 of safety shut-off valve is in complete balanced state through the piston 3 that is located 2 upper portions of valve rod, and safety shut-off valve is in full open position. When a pressure head connected to the protected section of the pipeline detects an overpressure, the pressure sensing means releases the locking lever and the valve port 1 is free to close under the force of the closing spring. When the overpressure disappears, the safety shut-off valve can be first re-locked by operating the button body 4, which is pushed down by operating the button body 4 so that the pressure difference across the valve seat 5 is almost zero. And then the locking rod is rotated clockwise by a wrench until the safety shut-off valve is in a full-open state.

The working principle is as follows:

the safety shut-off valve pressure is set by a shut-off valve regulating spring. When the pressure at the outlet of the pressure regulator exceeds the set value of the stop valve, the diaphragm assembly of the stop valve moves under the action of the outlet pressure. The acting force of the self-locking mechanism and the adjusting spring is pushed to separate the self-locking mechanism; at this time, the assembly of the valve port 1 of the shut-off valve drives the eccentric shaft 7 to rotate rapidly to close the valve port 1 under the action of the main valve spring.

The utility model discloses safety block valve can set up following one or more function control mode: minimum pressure control; controlling the maximum pressure; minimum and maximum pressure control; manual control (local button); remote cut-off control is carried out through a three-way electromagnetic valve; cutting off remote monitoring; can meet different use requirements.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. The first feature being "under," "below," and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or merely indicates that the first feature is at a lower level than the second feature.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims

1. The utility model provides an ultrahigh pressure safety shut-off valve, includes valve body, spring and actuating mechanism, spring mounting is inside the valve body, actuating mechanism installs inside the valve body, uses with the spring cooperation, its characterized in that, actuating mechanism includes valve rod and piston, the piston is installed on the inside top of valve body, the valve rod is installed in the piston below, uses with the piston cooperation.

2. The ultrahigh-pressure safety shut-off valve according to claim 1, wherein a valve seat for supporting is further installed below the valve stem.

3. The ultrahigh pressure safety shut-off valve according to claim 1, wherein a valve port for controlling the gas to flow in and out is further provided inside the valve body.

4. The ultrahigh pressure safety shut-off valve according to claim 1, wherein a button body for adjusting the air pressure of the valve body is further installed outside the valve body.

5. The ultra-high pressure safety shut-off valve as claimed in claim 4, wherein the button body is detachably mounted on the outer lower side of the valve body.

6. The ultra-high pressure safety shut-off valve as defined in claim 5, wherein a button stem is mounted on said button body.

7. The ultrahigh-pressure safety shut-off valve as claimed in claim 1, wherein an eccentric shaft for closing the valve port is further installed outside the valve body.

8. The ultra-high pressure safety shut-off valve as claimed in claim 7, wherein the eccentric shaft is detachably mounted on an outer upper side of the valve body.

9. The ultrahigh pressure safety shut-off valve of claim 1, wherein the safety shut-off valve is adapted to be used only when the inlet pressure reaches 300 bar.

10. The ultrahigh pressure safety shut-off valve according to claim 1, wherein the safety shut-off valve is remotely shut-off controlled by a three-way solenoid valve.