CN218761668U

CN218761668U - Explosion-proof valve

Info

Publication number: CN218761668U
Application number: CN202222343337.5U
Authority: CN
Inventors: 张桢侨; 陈思蒙
Original assignee: Jiangsu Shangou Valve Co ltd
Current assignee: Jiangsu Shangou Valve Co ltd
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2023-03-28
Anticipated expiration: 2032-09-05

Abstract

The utility model discloses an explosion-proof valve, which comprises a valve body, the valve gap, a valve core, the valve rod, hand wheel and buffer gear, wherein, the valve gap can be dismantled with the valve body and be connected, the case sets up the inside at the valve body, the one end of valve rod is connected with the last fixed surface of case, the other end and the hand wheel fixed connection of valve rod, buffer gear sets up the outer wall at the valve body, buffer gear includes the inlet pipe way, the outlet pipe way, cushion chamber and two buffering subassemblies, wherein, the inlet pipe way, outlet pipe way and cushion chamber communicate each other, and the cushion chamber sets up between inlet pipe way and outlet pipe way, two buffering subassemblies set up respectively in inlet pipe way and outlet pipe way. Therefore, the impact force of the fluid on the valve can be reduced by arranging the buffer mechanism on the valve body, the valve is prevented from bursting, and the normal conveying of a conveying system is ensured.

Description

Explosion-proof valve

Technical Field

The utility model relates to a valve processing technology field specifically indicates an explosion-proof valve.

Background

The valve is a pipeline accessory used for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters of a conveying medium. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like.

When the pressure in the valve is too high, the valve bursts due to poor pressure relief effect of the valve, so that the conveying system is broken or even interrupted, even safety accidents such as explosion occur, and the conveying of fluid is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, an object of the utility model is to provide an explosion-proof valve, through set up buffer gear on the valve body, can reduce the impact force of fluid to the valve, prevent bursting of valve, guaranteed conveying system's normal transport.

In order to realize the above object, the utility model discloses a first aspect provides an explosion-proof valve, including valve body, valve gap, case, valve rod, hand wheel and buffer gear, wherein, the valve gap with the connection can be dismantled to the valve body, the case sets up the inside of valve body, the one end of valve rod with the last fixed surface of case is connected, the other end of valve rod with hand wheel fixed connection, buffer gear sets up the outer wall of valve body, buffer gear includes inlet pipe, export pipeline, cushion chamber and two buffering subassemblies, wherein, inlet pipe the export pipeline with the cushion chamber communicates each other, just the cushion chamber sets up inlet pipe with between the export pipeline, two the buffering subassembly sets up respectively inlet pipe with in the export pipeline.

The utility model discloses an explosion-proof valve is through setting up the buffering subassembly in inlet pipeline and export pipeline to reduce the pressure in first passageway and the buffering intracavity, and then the protection valve prevents bursting of valve, has guaranteed conveying system's normal transport.

In addition, the explosion-proof valve proposed according to the above application may also have the following additional technical features:

specifically, buffering subassembly includes cock body, telescopic link, spring and bracing piece, wherein, the cock body slides and sets up entry pipeline or in the export pipeline, the one end of telescopic link with cock body fixed connection, the other end of telescopic link with bracing piece fixed connection, the spring is around establishing the outer wall of telescopic link, just the one end of spring with the cock body butt, the other end of spring with the bracing piece butt, the both ends of bracing piece respectively with entry pipeline or the inner wall fixed connection of export pipeline.

Specifically, the inner walls of the inlet pipeline and the outlet pipeline are provided with a plurality of grooves, and the heights of the grooves are larger than the height of the plug body.

Specifically, a first channel and a second channel are arranged inside the valve body, a through hole is formed in the center of the valve core, and the through hole, the first channel and the second channel are communicated with each other.

In particular, the inlet conduit communicates with the first passage and the outlet conduit communicates with the second passage.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an explosion-proof valve according to an embodiment of the present invention;

FIG. 2 is a partially enlarged view of the embodiment A in FIG. 1;

fig. 3 is a schematic structural view of the buffering assembly for buffering the impact force of the fluid according to the embodiment of the present invention.

As shown in the figure: 1. a valve body; 10. a first channel; 11. a second channel; 2. a valve cover; 3. a valve core; 30. a through hole; 4. a valve stem; 6. a hand wheel; 7. a buffer mechanism; 70. an inlet duct; 71. an outlet conduit; 72. a buffer chamber; 73. a buffer assembly; 730. a plug body; 731. a telescopic rod; 732. a spring; 733. a support bar; 8. and (4) a groove.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

The following describes the explosion-proof valve according to the embodiment of the present invention with reference to the attached drawings.

As shown in fig. 1 and fig. 2, the explosion-proof valve of the embodiment of the present invention may include a valve body 1, a valve cover 2, a valve core 3, a valve rod 4, a hand wheel 6 and a buffer mechanism 7.

The valve cover 2 is detachably connected with the valve body 1, the valve core 3 is arranged inside the valve body 1, one end of the valve rod 4 is fixedly connected with the upper surface of the valve core 3, the other end of the valve rod 4 is in threaded connection with the hand wheel 6, the buffer mechanism 7 is arranged on the outer wall of the valve body 1, the buffer mechanism 7 comprises an inlet pipeline 70, an outlet pipeline 71, a buffer cavity 72 and two buffer components 73, wherein the inlet pipeline 70, the outlet pipeline 71 and the buffer cavity 72 are mutually communicated, the buffer cavity 72 is arranged between the inlet pipeline 70 and the outlet pipeline 71, and the two buffer components 73 are respectively arranged in the inlet pipeline 70 and the outlet pipeline 71.

It can be understood that valve gap 2 can dismantle with valve body 1 and be connected, makes things convenient for relevant personnel to separate valve gap 2 and valve body 1 to in order to subsequent maintenance and detection, the one end and the case 3 fixed connection of valve rod 4, through driving the rotation of valve rod 4 in order to drive case 3, the bottom of case 3 is rotated through the bearing and is connected with the case seat, the case seat is fixed on the inner wall of valve body 1, through driving valve rod 4 and rotating, in order to drive case 3 and rotate, and then control fluid's switching.

It should be noted that the buffer chamber 72 is a rectangular cavity for receiving the fluid flowing in through the inlet pipe 70 to buffer the impact force of the fluid.

Specifically, the related personnel make case 3 cooperate the valve rod 4 rotation through rotating hand wheel 6, adjust the valve flow size through the contained angle between the vertical cross-section of through-hole 30 and the vertical cross-section of first passageway 10, when the vertical cross-section of through-hole 30 is parallel with the vertical cross-section of first passageway 10, the valve is opened, and the flow is the biggest, when the vertical cross-section of through-hole 30 is perpendicular with the vertical cross-section of first passageway 10, the valve is closed, when the fluid pressure in first passageway 10 is great, can get into in cushion chamber 72 through inlet pipe 70, with the fluidic pressure in reducing first passageway 10, reduce the impact force of fluid in first passageway 10 to the valve, and then the protection valve, prevent that the valve from bursting.

In an embodiment of the present invention, as shown in fig. 2 and fig. 3, the buffering component 73 includes a plug 730, a telescopic rod 731, a spring 732 and a supporting rod 733, wherein the plug 730 is slidably disposed in the inlet pipe 70 or the outlet pipe 71, one end of the telescopic rod 731 is fixedly connected to the plug 730, the other end of the telescopic rod 731 is fixedly connected to the supporting rod 733, the spring 732 is wound around the outer wall of the telescopic rod 731, one end of the spring 732 abuts against the plug 730, the other end of the spring 732 abuts against the supporting rod 733, and two ends of the supporting rod 733 are fixedly connected to the inner wall of the inlet pipe 70 or the inner wall of the outlet pipe 71, respectively.

It should be noted that, the plug 730 is attached to the inner wall of the inlet pipe 70 or the outlet pipe 71, in order to improve the sealing performance between the plug 730 and the inlet pipe 70 or the outlet pipe 71, the plug 730 may be made of rubber, or a sealing ring is fixedly disposed on the outer wall of the plug 730 to improve the sealing effect of the plug 730, the support rod 733 has a cylindrical structure, and the diameter of the support rod 733 is smaller than that of the inlet pipe 70 or the outlet pipe 71.

In an embodiment of the present invention, the valve body 1 is provided with a first channel 10 and a second channel 11 inside, the center of the valve core 3 is provided with a through hole 30, and the through hole 30, the first channel 10 and the second channel 11 are communicated with each other.

It should be noted that the through hole 30, the first channel 10 and the second channel 11 are coaxially arranged, when the vertical cross section of the through hole 30 is parallel to the vertical cross section of the first channel 10 or the second channel 11, the flow rate of the valve is maximum, and when the vertical cross section of the through hole 30 is perpendicular to the vertical cross section of the first channel 10 or the second channel 11, the valve is in the closed state.

In one embodiment of the present invention, the inner walls of the inlet pipe 70 and the outlet pipe 71 are both provided with a plurality of grooves 8, and the height of the grooves 8 is greater than the height of the plug body 730.

In the embodiment of the utility model, through setting up a plurality of recesses 8, when cock body 730 and recess 8 locate on same horizontal plane, cock body 730 produces the space with inlet pipe 70 or outlet pipe 71's inner wall, fluid process inlet pipe 70, in clearance inflow cushion chamber 72 between cock body 730 and the inlet pipe 70, in order to realize the buffering to fluid pressure, and the same is said, when the pressure in cushion chamber 72 is too big, fluid in cushion chamber 72 passes through outlet pipe 71, the space between cock body 730 and the outlet pipe 71 gets into second passageway 11, prevent that the pressure in cushion chamber 72 is too big, cause bursting of cushion chamber 72.

Particularly, when the present invention is implemented, the fluid enters the first channel 10 and the inlet pipe 70, when the pressure of the fluid in the first channel 10 is greater than the pressure in the buffer chamber 72, the fluid in the inlet pipe 70 exerts downward pressure on the plug body 730, the compression spring 732 deforms and shortens, and at the same time, the rod body of the telescopic rod 731 retracts into the rod sleeve, so as to drive the plug body 730 to move downward, when the plug body 730 moves to the same height as the groove 8, the fluid in the inlet pipe 70 flows into the buffer chamber 72 through the gap between the inlet pipes 70, so as to achieve the effect of the buffer fluid pressure, when the pressure of the fluid in the buffer chamber 72 is greater than the pressure of the second channel 11, the fluid in the buffer chamber 72 compresses the spring 733 in the outlet pipe 71, so as to shorten the spring 733, and further drive the plug body 731 to move to the same height as the groove 8, and the fluid in the buffer chamber 72 flows into the second channel 11 through the gap between the plug body 731 and the outlet pipe 71.

In one embodiment of the present invention, as shown in fig. 3, the inlet conduit 70 communicates with the first passage 10, and the outlet conduit 71 communicates with the second passage 11.

In the above embodiment, the pressure in the inlet pipe 70 and the buffer chamber 72 is relieved by the above arrangement, so that the valve and the buffer chamber 72 are protected.

To sum up, the utility model discloses explosion-proof valve is through setting up buffering subassembly 73 in inlet pipeline 70 and outlet pipeline 71 to reduce the pressure in first passageway 10 and cushion chamber 72, and then the protection valve prevents bursting of valve, has guaranteed conveying system's normal transport.

In the description of the present specification, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

While embodiments of the present invention have been shown and described, it is understood that they are exemplary and not intended to limit the invention, and that various changes, modifications, substitutions and alterations can be made herein by those skilled in the art without departing from the scope of the invention.

Claims

1. An explosion-proof valve is characterized by comprising a valve body (1), a valve cover (2), a valve core (3), a valve rod (4), a hand wheel (6) and a buffer mechanism (7), wherein,

the valve cover (2) is detachably connected with the valve body (1);

the valve core (3) is arranged inside the valve body (1);

one end of the valve rod (4) is fixedly connected with the upper surface of the valve core (3), and the other end of the valve rod (4) is fixedly connected with the hand wheel (6);

the buffer mechanism (7) is arranged on the outer wall of the valve body (1), the buffer mechanism (7) comprises an inlet pipeline (70), an outlet pipeline (71), a buffer cavity (72) and two buffer components (73), wherein,

said inlet duct (70), said outlet duct (71) and said buffer chamber (72) being in communication with each other, and said buffer chamber (72) being arranged between said inlet duct (70) and said outlet duct (71);

the two buffering assemblies (73) are respectively and correspondingly arranged in the inlet pipeline (70) and the outlet pipeline (71).

2. Explosion-proof valve according to claim 1, characterized in that the damping assembly (73) comprises a plug body (730), a telescopic rod (731), a spring (732) and a support bar (733), wherein,

the plug body (730) is slidably arranged in the inlet pipeline (70) or the outlet pipeline (71);

one end of the telescopic rod (731) is fixedly connected with the plug body (730), and the other end of the telescopic rod (731) is fixedly connected with the supporting rod (733);

the spring (732) is wound on the outer wall of the telescopic rod (731), one end of the spring (732) is abutted against the plug body (730), and the other end of the spring (732) is abutted against the supporting rod (733);

and two ends of the supporting rod (733) are fixedly connected with the inner wall of the inlet pipeline (70) or the outlet pipeline (71) respectively.

3. Explosion-proof valve according to claim 2, characterized in that the inner walls of the inlet duct (70) and the outlet duct (71) are each provided with a plurality of grooves (8), and the height of the grooves (8) is greater than the height of the plug body (730).

4. The explosion-proof valve according to claim 2, characterized in that a first channel (10) and a second channel (11) are arranged inside the valve body (1), a through hole (30) is arranged in the center of the valve core (3), and the through hole (30), the first channel (10) and the second channel (11) are communicated with each other.

5. Explosion-proof valve according to claim 4, characterized in that the inlet conduit (70) communicates with the first passage (10) and the outlet conduit (71) communicates with the second passage (11).