CN213512191U

CN213512191U - High-temperature ball valve

Info

Publication number: CN213512191U
Application number: CN202021803167.9U
Authority: CN
Inventors: 徐建华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-06-22
Anticipated expiration: 2030-08-25

Abstract

The utility model provides a high temperature ball valve relates to valve technical field, and the main objective is the technical problem who solves the ball valve installation part that exists among the prior art too much, processing is complicated. The high-temperature ball valve comprises a valve body, a sealing ball and a sealing element, wherein the sealing ball is positioned in an inner cavity of the valve body and can rotate in the inner cavity of the valve body, the sealing element is fixedly arranged at two ends of the valve body, through which liquid flows, through a flange plate, and the sealing element can be mutually abutted with the surface of the sealing ball to form a sealing surface of the valve body. The sealing piece combines the sealing rings, nuts and other structures used in the traditional valve together to form an integrated sealing structure, and compared with a plurality of traditional parts, the sealing piece is simpler in processing and can obviously improve the assembly efficiency. Under the action of the sealing element, the ball valve can conveniently realize the opening and sealing of the liquid flow channel. The utility model is used for ball valve technical field.

Description

High-temperature ball valve

Technical Field

The utility model belongs to the technical field of the valve technique and specifically relates to a high temperature ball valve is related to.

Background

Ball valves come out in the 50 th of the 20 th century, and with the rapid development of science and technology and the continuous improvement of production processes and product structures, the ball valves have rapidly developed into a main valve class in short 40 years. In countries with developed western industries, the use of ball valves is continuously increasing year by year, and in China, ball valves are widely applied in industries such as petroleum refining, long-distance pipelines, chemical industry, paper making, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and play a significant role in national economy. The existing hard seal ball valve has the following advantages: firstly, wear resistance; because the valve core of the hard seal ball valve is spray-welded by alloy steel and the seal ring is built-up welded by alloy steel, the hard seal ball valve can not generate too much abrasion when being opened and closed. The service life is long, the application range is wide, and the device is widely applied to various departments such as petroleum, chemical industry, power generation, paper making, atomic energy, aviation, rockets and the like, and in daily life of people. However, the existing ball valves also have some problems, especially during installation: except that the inside sealing ring installation of ball valve is loaded down with trivial details, when being in the same place valve and piping erection, also need install gasket isotructure additional, the installation is loaded down with trivial details, and multiple part needs a lot of processing simultaneously, takes a lot of work and time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high temperature ball valve to solve the ball valve installation part that exists among the prior art too much, process complicated technical problem. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a high temperature ball valve, including valve body, ball sealer and sealing member, the ball sealer is located the valve body inner chamber can the internal rotation of valve body inner chamber, the sealing member passes through the fixed setting of ring flange the valve body supplies the both ends that liquid flows through just the sealing member can with the mutual butt in surface of ball sealer constitutes the sealed face of valve body.

The sealing piece combines the sealing rings, nuts and other structures used in the traditional valve together to form an integrated sealing structure, and compared with a plurality of traditional parts, the sealing piece is simpler in processing and can obviously improve the assembly efficiency. Under the action of the sealing element, the ball valve can conveniently realize the opening and sealing of the liquid flow channel.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

As a further improvement of the present invention, the valve body is fixedly connected to the pipe through a flange plate and the pipe, and the valve body is provided with a cavity for accommodating the sealing member.

As a further improvement of the present invention, the outer peripheral side of the sealing member is provided with a flange, and the sealing member can pass through the flange and the pipe and the valve body is fixedly connected together.

The sealing effect of the sealing element can be realized through the two different structures.

As a further improvement of the present invention, the sealing member is a tubular structure, one side of which is recessed toward the axis direction and forms a step structure, and the step is abutted against the sealing ball.

As a further improvement of the utility model, the ball valve also comprises a valve rod arranged in the valve body in a penetrating way, and the valve rod is fixedly connected with the sealing ball; when the valve rod rotates along the axial direction of the valve rod, the sealing ball can be driven to rotate so as to control the opening and closing of the ball valve.

As a further improvement of the utility model, this ball valve still includes the handle, the handle is located the valve body is outside, the one end of valve rod for the valve body stretch out and with handle fixed connection works as when the handle rotates on the horizontal plane, the valve rod can rotate in step thereupon.

As a further improvement of the utility model, the valve rod with the contact surface department of valve body is provided with the sealing filler.

As a further improvement of the utility model, the fixed nut that is provided with in outer end of valve rod, the handle passes through the nut with valve rod fixed connection.

As a further improvement, the handle and the valve body are fixed with a gasket, the gasket is arranged on the outer periphery of the valve rod.

As a further improvement of the utility model, the sealing element is made of polytetrafluoroethylene material.

The polytetrafluoroethylene material has better high-temperature resistance, so that the sealing element made of the material is more suitable for working in a high-temperature environment.

Compared with the prior art, the utility model provides a high-temperature ball valve, which comprises a valve body, a sealing ball, a sealing element, a valve rod, a handle and other structures, wherein the valve rod is fixedly connected with the sealing ball and the handle, and the rotating handle can drive the sealing ball to rotate in the valve body, thereby controlling the opening and closing of the valve; the sealing element is an annular assembly with a step structure on the outer peripheral side, the step structure can be inserted into the valve body, and sealing balls in the valve body are mutually abutted to form a sealing surface; the seal can be secured between the pipe and the ball valve by a flange structure; compared with the traditional ball valve structure, the sealing element can replace various structures such as a sealing ring, a sealing nut, a gasket and the like, so that the ball valve is simpler and quicker in the installation process; in addition, because the part quantity that the ball valve processing required reduces, consequently can effectively reduce the finish machining cost of ball valve, improve machining efficiency, make the ball valve have the advantage of being convenient for the installation simultaneously.

Drawings

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

FIG. 1 is a schematic sectional view of the high-temperature ball valve of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 taken along line A-A;

fig. 3 is another schematic structural diagram of the high-temperature ball valve of the present invention.

In the figure: 1. a valve body; 2. a sealing ball; 3. a seal member; 31. a step; 4. a pipeline; 5. a chamber; 6. a valve stem; 7. a handle; 8. sealing and filling; 9. a nut; 10. and (7) a gasket.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

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. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 the case may be, by those of ordinary skill in the art.

FIG. 1 is a schematic sectional structure diagram of the high-temperature ball valve of the present invention; as can be clearly seen from the figure, two ends of the ball valve are respectively and fixedly provided with a sealing element, the sealing element is of a hollow structure, one side of the sealing element is provided with a step structure which can be mutually abutted with the sealing ball, and the sealing element is fixedly connected with the valve body through a flange structure.

FIG. 2 is a schematic view of the structure of FIG. 1 taken along line A-A; at the moment, it can be seen that a flange structure is arranged on the outer peripheral side of the ball valve, the ball valve can be fixedly connected with a pipeline through the flange structure, in addition, a sealing ball in the ball valve is fixedly connected with a handle through a valve rod, and the handle can drive the sealing ball to rotate; the contact surface of the valve rod and the valve body is sealed by sealing filler.

FIG. 3 is another schematic structural diagram of the high-temperature ball valve of the present invention; in comparison with fig. 1, the valve body is now fixedly connected to the pipe via a flange and a chamber is provided at its contact surface, in which chamber the seal is located.

The technical solution of the present invention will be specifically described below with reference to the accompanying drawings.

The utility model provides a high temperature ball valve, this high temperature ball valve mainly comprise valve body, ball sealer and sealing member, and wherein the ball sealer is located the valve body inner chamber and can be at the internal rotation of valve body chamber, and the sealing member passes through the fixed setting of ring flange and can constitute the sealed face of valve body with the mutual butt in surface of ball sealer at both ends that the valve body supplied liquid to flow through and sealing member. Compared with the traditional ball valve, the ball valve combines the sealing ring and the structures such as the nut and the sealing gasket for fixing the sealing ring together to form an integrated sealing structure. In the aspect of processing, the processing of a single part is simpler than the processing of a plurality of parts, the processing cost can be effectively reduced, and the processing efficiency is improved; from the installation angle, single part installation rate is faster, can improve the installation rate, also can save time more simultaneously in the installation, avoids because of the part is omitted or the installation problem that leads to really.

The sealing element is of a tubular structure, one side of the sealing element is sunken towards the axis direction to form a step structure, and the step and the sealing ball are mutually abutted. The sealing of the valve liquid flow port can be conveniently realized under the action of the sealing piece.

Specifically, the step structure is inserted into the valve body to a depth of about 2 mm.

In order to facilitate the installation of the sealing member without affecting the connection between the valve and the pipe, as an alternative embodiment, the valve body is fixedly connected with the pipe through a flange, and a chamber for accommodating the sealing member can be formed between the valve body and the pipe, as shown in fig. 1.

It should be noted that the chamber and the seal can be in close conformity, i.e. the outer side wall of the seal and the inner side wall of the chamber abut or abut each other when the seal is located in the chamber.

In consideration of the specific installation manner of the sealing member, as an alternative embodiment, the outer peripheral side of the sealing member may also be provided with a flange, and the sealing member is fixedly connected with the pipe and the valve body through the flange, as shown in fig. 3, and at this time, the pipe may also be connected with the sealing member through the flange in a sealing manner.

Through the two different structures, the sealing element can be fixedly mounted on the basis that the sealing effect of the sealing element is not needed.

In order to make the ball valve better adapted to high temperature environment, as an alternative embodiment, a sealing member made of polytetrafluoroethylene material is provided.

Besides the structure, the high-temperature ball valve also comprises a valve rod arranged in the valve body in a penetrating way, and the valve rod is fixedly connected with the sealing ball; when the valve rod rotates along the axial direction, the sealing ball can be driven to rotate to control the opening and closing of the ball valve.

In order to avoid the leakage of liquid flow from the contact surface of the valve rod and the valve body, the contact surface of the valve rod and the valve body is required to be provided with sealing packing.

In order to facilitate the rotation of the valve rod, as an alternative embodiment, the ball valve further comprises a handle, the handle is located outside the valve body, one end of the valve rod extends out relative to the valve body and is fixedly connected with the handle, and when the handle rotates on a horizontal plane, the valve rod can synchronously rotate along with the handle.

Specifically, the handle is secured to the end of the valve stem by a nut, as shown in FIG. 2.

In order to avoid leakage between the handle and the valve body, a gasket is fixedly arranged between the handle and the valve body and sleeved on the peripheral side of the valve rod.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The high-temperature ball valve is characterized by comprising a valve body, a sealing ball and sealing elements, wherein the sealing ball is positioned in an inner cavity of the valve body and can rotate in the inner cavity of the valve body; the sealing element is of a tubular structure, one side of the sealing element is sunken towards the axis direction to form a step structure, and the step and the sealing ball are mutually abutted.

2. A high temperature ball valve according to claim 1, wherein the valve body is fixedly attached to the conduit by a flange and the valve body and the conduit define a chamber therebetween for receiving the seal.

3. A high-temperature ball valve according to claim 1, wherein a flange is provided on an outer peripheral side of the sealing member, and the sealing member is fixedly connected to the pipe and the valve body via the flange.

4. The high temperature ball valve of claim 1, further comprising a valve stem disposed through the valve body, the valve stem being fixedly connected to the sealing ball; when the valve rod rotates along the axial direction of the valve rod, the sealing ball can be driven to rotate so as to control the opening and closing of the ball valve.

5. A high temperature ball valve according to claim 4 further comprising a handle located externally of the valve body, one end of the valve stem extending relative to the valve body and fixedly connected to the handle, the valve stem being rotatable in unison therewith when the handle is rotated in a horizontal plane.

6. A high temperature ball valve according to claim 4, wherein a sealing packing is provided at the interface of the valve stem and the valve body.

7. The high-temperature ball valve according to claim 5, wherein a nut is fixedly arranged at the outer end of the valve stem, and the handle is fixedly connected with the valve stem through the nut.

8. The high-temperature ball valve according to claim 7, wherein a gasket is fixedly arranged between the handle and the valve body, and the gasket is sleeved on the outer peripheral side of the valve rod.

9. A high temperature ball valve according to claim 1, wherein the seal is made of a polytetrafluoroethylene material.