CN216923211U

CN216923211U - Pressurized baffle valve

Info

Publication number: CN216923211U
Application number: CN202220458262.2U
Authority: CN
Inventors: 刘鹏; 徐文立; 杜霆; 陆鑫
Original assignee: Ningbo Hiper Vacuum Technology Co Ltd
Current assignee: Ningbo Hengpu Technology Co ltd
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-07-08
Anticipated expiration: 2032-03-04

Abstract

The utility model discloses a pressurized baffle valve, which comprises a valve body, a baffle and an air cylinder, wherein the baffle is arranged on one side of the valve body or in the valve body; the top or the bottom of the valve body is provided with a pressure relief port; when the baffle is arranged in the valve body, one side of the valve body is positioned at an air outlet of the pressure container, the air cylinder is arranged at the top end of the valve body, the other end of the connecting shaft connected with the telescopic end of the air cylinder is connected with the baffle, and a pressure relief opening is formed in the position, corresponding to the baffle, of the bottom of the valve body; a sealing assembly is arranged between the connecting shaft and the valve body and used for ensuring the sealing of a cavity of the valve body. The pressurized flapper valve, the valve can be used on a pressure vessel; when the pressure of the air inlet end rises, the valve can still be normally closed; the action pressure difference of the valve and the limitation of the size of the cylinder are reduced.

Description

Pressurized baffle valve

Technical Field

The utility model relates to the technical field of baffle valves, in particular to a pressurized baffle valve.

Background

Flapper valves are widely used in vacuum or pressure vessels. The air cylinder is used for switching on or switching off the air flow in the vacuum pipeline, compressed air is used as power, the direction of an air path is changed through the electromagnetic directional valve, and the air cylinder drives the baffle valve to open and close.

The prior baffle valve generally has the following problems:

1. the device can be only used on a vacuum container or a pipeline with small pressure difference, and cannot resist the atmospheric pressure;

2. when the pressure difference between the air inlet and the air outlet reaches a certain degree, the valve cannot be closed;

3. the larger the aperture of the valve is, the smaller the operating pressure difference is, due to the limitation of the size of the cylinder.

In response to the above problems, a new flapper valve needs to be designed.

SUMMERY OF THE UTILITY MODEL

The present invention aims to provide a pressurized flapper valve, which solves the problems of the prior art and can be used on a pressure vessel; when the pressure of the air inlet end rises, the valve can still be normally closed; the action pressure difference of the valve and the limitation of the size of the cylinder are reduced.

In order to achieve the purpose, the utility model provides the following scheme: the utility model provides a pressurized baffle valve, which comprises a valve body, a baffle plate and an air cylinder, wherein the baffle plate is arranged on one side of the valve body or inside the valve body,

when the baffle is arranged on one side of the valve body, the baffle is positioned at an air outlet of the pressure container, the air cylinder is arranged at one end of the valve body, and the other end of the connecting shaft connected with the telescopic end of the air cylinder penetrates through the valve body and then is connected with the baffle; the top or the bottom of the valve body is provided with a pressure relief port;

when the baffle is arranged in the valve body, one side of the valve body is positioned at an air outlet of the pressure container, the air cylinder is arranged at the top end of the valve body, the other end of the connecting shaft connected with the telescopic end of the air cylinder is connected with the baffle, and a pressure relief opening is formed in the position, corresponding to the baffle, of the bottom of the valve body;

the connecting shaft with be provided with seal assembly between the valve body, seal assembly is used for guaranteeing the sealed of valve body cavity.

Preferably, when the baffle is arranged on one side of the valve body, the output shaft of the cylinder is connected with the connecting flange, and the cylinder is connected with one end of the connecting shaft through the connecting flange.

Preferably, the valve body and the cylinder are provided with two travel switches on the same side, the connecting flange is slidably arranged between the two travel switches, and the two travel switches are used for controlling the length of the travel.

Preferably, a water pipe jacket is arranged on the outer side of the connecting shaft.

Preferably, a corrugated pipe is arranged in the valve body, the connecting shaft penetrates through the corrugated pipe, and the corrugated pipe and the valve body are welded and sealed.

Preferably, when the baffle is arranged inside the valve body, one side of the valve body is connected with an air outlet of the pressure container through a flange, and the air cylinder is arranged at the top end of the valve body through an air cylinder seat.

Preferably, a sealing frame is arranged at a penetrating position of the connecting shaft at the bottom of the cylinder on the valve body, a sealing ring is arranged on the sealing frame, and the sealing frame is used for keeping a cavity of the valve body sealed; and a travel switch is arranged on the cylinder.

Preferably, when the baffle is arranged on one side of the valve body, the cylinder is arranged at one end of the valve body through a cylinder seat, and the connecting shaft and the inner cavity of the valve body are kept sealed with each other through a sealing frame and a lining.

Compared with the prior art, the utility model has the following beneficial technical effects:

the pressurizing baffle valve has the following advantages:

1. the valve can be used on a pressure container;

2. when the pressure of the air inlet end rises, the valve can still be normally closed;

3. the action pressure difference of the valve and the limitation of the size of the cylinder are reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of a pressurized flapper valve arrangement according to a first embodiment;

FIG. 2 is a schematic view showing the first embodiment in which the baffle plate and the cylinder shaft are pushed to the leftmost end by pressure and the valve is in a closed state when the pressure vessel is pressurized;

FIG. 3 is a diagram of the first embodiment, in which when the pressure is relieved, the baffle plate moves rightwards under the action of the cylinder, and the valve is in an open state;

FIG. 4 is a schematic view of a pressurized flapper valve according to a second embodiment;

FIG. 5 is a view showing the second embodiment in which the baffle plate and the cylinder shaft are pushed to the lowermost end by pressure and the valve is in a closed state when the pressure vessel is pressurized;

FIG. 6 is a diagram of the second embodiment in which the damper moves upward under the action of the cylinder during pressure relief, and the valve is in an open state;

FIG. 7 shows that in the second embodiment, when the size of the baffle valve is too large, the upper flange can be changed into a sealing head;

FIG. 8 is a schematic view of a third embodiment of a pressurized flapper valve;

FIG. 9 is a view showing the third embodiment in which the baffle plate is pushed to the leftmost end together with the cylinder shaft by pressure and the valve is in a closed state when the pressure vessel is pressurized;

fig. 10 shows the third embodiment in which the baffle moves to the right under the action of the cylinder and the valve is in an open state when the pressure is relieved;

wherein, 1, a valve body; 2, a baffle plate; 3, a cylinder; 4 connecting the shaft; 5, a travel switch; 6, a corrugated pipe; 7, sealing rings; 8, water pipe jacket; 9 a bushing; 10 sealing the frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Example one

As shown in fig. 1 to 3, the present embodiment provides a pressurized flapper valve, which is mainly composed of a valve body 1, a flapper 2, a cylinder 3, a travel switch 5, a water pipe jacket 8, a bellows 6 and a connecting shaft 4. Baffle 2 is located the air outlet department of pipeline, and cylinder 3 sets up the one end at valve body 1, and the output shaft and the flange of cylinder 3 are connected, and cylinder 3 passes through flange to be connected with the one end of connecting axle 4, and the other end of connecting axle 4 passes valve body 1 to be connected with baffle 2, is controlled stroke length by travel switch 5 to the action of control baffle 2.

The pressurized flapper valve may be adapted for use in a pressure vessel. The connecting shaft 4 is additionally provided with a water pipe jacket 8, so that the function of cooling is achieved. The bellows 6 acts to seal the flapper valve chamber. The travel switch 5 controls the travel of the flapper.

As shown in fig. 2, when the pressure vessel is pressurized, the baffle 2 is pushed to the leftmost end together with the cylinder shaft by the pressure.

As shown in fig. 3, when the pressure is released, the baffle 2 moves to the right under the action of the cylinder 3.

Example two

As shown in fig. 4-7, the present embodiment provides a pressurized flapper valve, which mainly comprises a valve body 1, a flapper 2, a cylinder 3, a seal holder 10 and a seal ring 7. The baffle 2 is arranged in the valve body 1, and the right flange of the valve body 1 is connected with a pressure container. The cylinder 3 is arranged at one end of the valve body 1 through a cylinder seat, and plays a role in sealing through a sealing ring 7 on a sealing frame 10, wherein the sealing ring 7 can adopt an O-shaped ring or a star-shaped lip-shaped sealing ring and the like. The function of the seal carrier 10 is to keep the chamber sealed. The water pipe jacket 8 has a cooling function.

As shown in fig. 5, when the pressure vessel is pressurized, the baffle plate 2 is pushed to the lowermost end together with the cylinder shaft by the pressure.

As shown in fig. 6, when the pressure is released, the baffle 2 is moved upward by the cylinder 3.

As shown in fig. 7, the upper flange may be replaced with a head when the flapper valve is too bulky.

EXAMPLE III

As shown in fig. 8-10, the present embodiment provides a pressurized flapper valve which is mainly composed of a valve body 1, a flapper 2, a connecting shaft 4, a seal holder 10 and a bushing 9. Baffle 2 is located the air outlet department of pipeline, and cylinder 3 sets up in the one end of valve body 1, through the sealed effect of seal frame 10 with bush 9, makes the cavity keep sealed. The mechanism is sealed by the structure of the sealing frame 10, and a plurality of cylinders or a cooling system can be added according to specific conditions.

As shown in fig. 9, when the pressure vessel is pressurized, the baffle plate 2 is pushed to the leftmost end together with the cylinder shaft by the pressure.

As shown in fig. 10, when the pressure is released, the baffle 2 moves to the right by the cylinder 3.

It will be evident to those skilled in the art that the utility model 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 utility model 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, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

The principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.

Claims

1. A pressurized flapper valve characterized by: comprises a valve body, a baffle plate and a cylinder, wherein the baffle plate is arranged on one side of the valve body or in the valve body,

when the baffle is arranged on one side of the valve body, the baffle is positioned at the air outlet of the pressure container, the cylinder is arranged at one end of the valve body, and the other end of the connecting shaft connected with the telescopic end of the cylinder penetrates through the valve body and then is connected with the baffle; the top or the bottom of the valve body is provided with a pressure relief port;

and a sealing assembly is arranged between the connecting shaft and the valve body and used for ensuring the sealing of a cavity of the valve body.

2. The pressurized flapper valve of claim 1, wherein: when the baffle sets up when valve body one side, the output shaft and the flange connection of cylinder, the cylinder passes through the flange and is connected with the one end of connecting axle.

3. The pressurized flapper valve of claim 2, wherein: two travel switches are arranged on the valve body and on the same side of the air cylinder, the connecting flange is arranged between the two travel switches in a sliding mode, and the two travel switches are used for controlling the length of a stroke.

4. The pressurized flapper valve of claim 1, wherein: and a water pipe jacket is arranged on the outer side of the connecting shaft.

5. The pressurized flapper valve of claim 2, wherein: the valve body is internally provided with a corrugated pipe, the connecting shaft penetrates through the corrugated pipe, and the corrugated pipe and the valve body are welded and sealed.

6. The pressurized flapper valve of claim 1, wherein: when the baffle is arranged inside the valve body, one side of the valve body is connected with an air outlet of the pressure container through a flange, and the air cylinder is arranged at the top end of the valve body through an air cylinder seat.

7. The pressurized flapper valve of claim 6, wherein: a sealing frame is arranged at the position, located at the bottom of the cylinder, of the valve body, where the connecting shaft penetrates, a sealing ring is arranged on the sealing frame, and the sealing frame is used for keeping a cavity of the valve body sealed; and a travel switch is arranged on the cylinder.

8. The pressurized flapper valve of claim 1, wherein: when the baffle is arranged on one side of the valve body, the air cylinder is arranged at one end of the valve body through an air cylinder seat, and the connecting shaft and the inner cavity of the valve body are kept sealed mutually through the sealing frame and the lining.