CN213419970U

CN213419970U - Automatic compensation type copper ball valve special for oxygen

Info

Publication number: CN213419970U
Application number: CN202022045736.4U
Authority: CN
Inventors: 林德伟; 王刚
Original assignee: Yingkou Hengxing Valve Manufacturing Co ltd
Current assignee: Yingkou Hengxing Valve Manufacturing Co ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-06-11
Anticipated expiration: 2030-09-17

Abstract

The utility model discloses a special automatic compensation formula copper ball valve of oxygen. According to the automatic compensation type copper ball valve special for oxygen, the valve seat is arranged between the valve cover and the ball body, the area, corresponding to the valve seat, of the inner wall of the valve cover is provided with the accommodating groove, one side of the accommodating groove is provided with the offset groove communicated with the accommodating groove, the shape of the valve seat is matched with that of the accommodating groove, the end part of the valve seat is provided with the bump, and the shape of the bump is matched with that of the offset groove; a spring is arranged between one end of the valve seat and the side wall of the accommodating groove, a sealing ring is arranged at one end of the valve seat facing the ball body, and the external shape of the end, in contact with the ball body, of the sealing ring is matched with the external shape of the ball body; two first O-shaped rings are arranged at the top of the valve seat and are in contact with the top wall of the accommodating groove; when the pressure of a medium in the middle cavity of the valve is abnormally increased and the pressure exceeds the pretightening force of the spring, the spring is compressed, the valve seat can retreat to be separated from the ball body, the effect of automatic pressure relief is achieved, and the valve seat automatically resets after the pressure relief.

Description

Automatic compensation type copper ball valve special for oxygen

Technical Field

The utility model relates to the technical field of valves, concretely relates to special automatic compensation formula copper ball valve of oxygen.

Background

The oxygen ball valve is one kind of oxygen pipe network special valve, it has good fire resistance in addition to having ordinary ball valve function, electric conductive property is good, heat transfer is fast, compact structure, grease proofing, characteristics such as safe and reliable, along with the development of metallurgical industry, the oxygen ball valve is widely used in industries such as steel and iron, metallurgy, medicine, chemical industry with the special stop valve of oxygen together. The existing oxygen ball valve has the following defects: when the pressure of the medium in the middle cavity of the valve is abnormally increased, the automatic pressure relief cannot be well realized, so that an automatic compensation type copper ball valve special for oxygen is needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The present invention aims to overcome the above disadvantages, and to provide an automatic compensation type copper ball valve for oxygen to solve the problem that the existing oxygen ball valve cannot realize automatic pressure relief well when the medium pressure in the middle cavity of the valve is abnormally increased.

The utility model provides a special automatic compensation formula copper ball valve of oxygen, include: the upper part and the lower part between the two valve covers are respectively provided with a ball body, an upper valve rod is connected above the upper ball body, the upper valve rod is arranged in an upper bracket, and the upper bracket is connected above the space between the two valve covers; a lower valve rod is connected below the ball body positioned below the lower valve rod, the lower valve rod is arranged in a lower bracket, the lower bracket is connected below the two valve covers, and a valve plug is arranged at the bottom of the lower valve rod;

a valve seat is arranged between the valve cover and the ball body, an accommodating groove is arranged in the area, corresponding to the valve seat, of the inner wall of the valve cover, an offset groove communicated with the accommodating groove is arranged on one side of the accommodating groove, the shape of the valve seat is matched with that of the accommodating groove, a protruding block is arranged at the end part of the valve seat, and the shape of the protruding block is matched with that of the offset groove;

a spring is arranged between one end of the valve seat and the side wall of the accommodating groove, a sealing ring is arranged at one end of the valve seat facing the ball body, and the external shape of the end, in contact with the ball body, of the sealing ring is matched with the external shape of the ball body; two first O-shaped rings are arranged at the top of the valve seat and are in contact with the top wall of the accommodating groove.

Further, the lower support is connected with the valve cover through a first bolt, and a second O-shaped ring is arranged between the valve cover and the lower support.

Further, the valve plug with be provided with third O type circle between the lower carriage, the valve plug with the lower carriage is through a hexagon socket head cap screw connection.

Further, a fourth O-shaped ring is arranged between the lower valve rod and the lower support, and a sliding bearing is arranged between the lower valve rod and a ball body located below the lower valve rod.

Further, a fifth O-shaped ring is arranged between the upper support and the valve cover, a flat key is arranged between the upper valve rod and the ball body located above the upper valve rod, a bushing is arranged between the upper valve rod and the upper support, a sixth O-shaped ring is arranged above the bushing, and the upper support is formed by two parts which are connected through a second bolt.

Furthermore, an upper cover is arranged above the sixth O-shaped ring, a packing gland is arranged above the upper cover, and the packing gland is connected with the upper cover through a third bolt.

Furthermore, a seventh O-shaped ring and an eighth O-shaped ring are arranged between the upper cover and the upper support, the upper cover is connected with the upper support through a second hexagon socket head cap bolt, and packing is arranged between the packing gland and the upper cover.

The utility model discloses following beneficial effect has: the utility model provides a special automatic compensation formula copper ball valve of oxygen, through being provided with the valve seat between valve gap and spheroid, the region that the valve gap inner wall corresponds the valve seat is provided with the storage tank, and one side of storage tank is provided with the skew groove that communicates with the storage tank, and the shape of valve seat and the shape phase-match of storage tank, the tip of valve seat are provided with the lug, and the shape of lug and the shape phase-match of skew groove; a spring is arranged between one end of the valve seat and the side wall of the accommodating groove, a sealing ring is arranged at one end of the valve seat facing the ball body, and the external shape of the end, in contact with the ball body, of the sealing ring is matched with the external shape of the ball body; the top of disk seat is provided with two first O type circles, and first O type circle and the roof contact of storage tank rise unusually at the stagnant medium pressure in valve lumen, and when pressure exceeded the pretightning force of spring, the spring was compressed, and the disk seat can be backed off from the spheroid, reaches the effect of automatic pressure release, disk seat automatic re-setting after the pressure release.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used 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 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 automatic compensation type copper ball valve for oxygen.

Fig. 2 is an external schematic view of the automatic compensation type copper ball valve for oxygen.

Fig. 3 is a schematic view of the local amplification of the valve seat area of the automatic compensation type copper ball valve for oxygen.

Illustration of the drawings: 1-valve cover; 2-valve seat; 3-a first O-ring; 4-sealing ring; 5-a first bolt; 6-a second O-ring; 7-a third O-ring; 8-a valve plug; 9-lower valve stem; 10-a first hexagon socket screw; 11-a fourth O-ring; 12-a plain bearing; 13-lower support; 14-sphere; 15-a fifth O-ring; 16-flat bond; 17-a bushing; 18-sixth O-ring; 19-a second bolt; 20-a second hexagon socket screw; 21-a filler; 22-upper support; 23-a third bolt; 24-a packing gland; 25-upper cover; 26-a seventh O-ring; 27-eighth O-ring; 28-upper valve stem; 29-a spring; 30-a containing groove; 31-an offset slot; 32-bumps.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

Referring to fig. 1 to 3, an embodiment of the present invention provides an oxygen-dedicated automatic compensation type copper ball valve, including: two symmetrically arranged valve covers 1, the valve cover 1 can be made of 0Cr18Ni9 material. Balls 14 are respectively arranged above and below the two valve covers 1, and the balls 14 can be made of copper materials. An upper valve rod 28 is connected above the upper ball 14, and the upper valve rod 28 can be made of 0Cr18Ni 9. The upper stem 28 is mounted inside the upper bracket 22, and the upper bracket 22 is made of WCB material. The upper bracket 22 is connected above between the two valve caps 1. The lower valve rod 9 is connected to the lower portion of the lower sphere 14, the lower valve rod 9 is made of 304 steel, the lower valve rod 9 is installed inside the lower support 13, the lower support 13 is made of ZG0Cr18Ni9, the lower support 13 is connected to the lower portion between the two valve covers 1, the valve plug 8 is arranged at the bottom of the lower valve rod 9, and the valve plug 8 is made of 0Cr18Ni 9.

The valve seat 2 is arranged between the valve cover 1 and the ball 14, the valve seat 2 is made of 304 steel, the area of the inner wall of the valve cover 1 corresponding to the valve seat 2 is provided with an accommodating groove 30, one side of the accommodating groove 30 is provided with an offset groove 31 communicated with the accommodating groove 30, the shape of the valve seat 2 is matched with that of the accommodating groove 30, the end part of the valve seat 2 is provided with a convex block 32, and the shape of the convex block 32 is matched with that of the offset groove 31.

A spring 29 is arranged between one end of the valve seat 2 and the side wall of the accommodating groove 30, the spring 29 is made of 2Cr13, a sealing ring 4 is arranged at one end, facing the ball 14, of the valve seat 2, the sealing ring 4 is made of PTFE, and the outer shape of one end, contacting the ball 14, of the sealing ring 4 is matched with that of the ball 14. Two first O-shaped rings 3 are arranged at the top of the valve seat 2, the first O-shaped rings 3 are made of nitrile rubber, the first O-shaped rings 3 are in contact with the top wall of the accommodating groove 30, and the valve cover 1, the valve seat 2 and the inner wall of the ball 14 are parallel and level. When the pressure of the medium in the middle cavity (area A in fig. 3) of the valve is abnormally increased and exceeds the pretightening force of the spring 29, the valve seat 2 retreats and is separated from the ball 14, the effect of automatic pressure relief is achieved, and the valve seat 2 automatically resets after pressure relief.

In the present embodiment, the lower bracket 13 is connected to the bonnet 1 by the first bolt 5, and the second O-ring 6 is provided between the bonnet 1 and the lower bracket 13. A third O-shaped ring 7 is arranged between the valve plug 8 and the lower bracket 13, and the valve plug 8 is connected with the lower bracket 13 through a first hexagon socket head cap screw 10. A fourth O-ring 11 is arranged between the lower valve rod 9 and the lower support 13, and a sliding bearing 12 is arranged between the lower valve rod 9 and a ball 14 located below. A fifth O-ring 15 is provided between the upper bracket 22 and the bonnet 1, a flat key 16 is provided between the upper stem 28 and the ball 14 located above, a bushing 17 is provided between the upper stem 28 and the upper bracket 22, a sixth O-ring 18 is provided above the bushing 17, and the upper bracket 22 is formed in two parts, and the two parts are connected by a second bolt 19. An upper cover 25 is arranged above the sixth O-shaped ring 18, a packing gland 24 is arranged above the upper cover 25, and the packing gland 24 and the upper cover 25 are connected through a third bolt 23. A seventh O-ring 26 and an eighth O-ring 27 are provided between the upper cover 25 and the upper bracket 22, the upper cover 25 and the upper bracket 22 are connected by a second hexagon socket head cap screw 20, and a packing 21 is provided between the packing gland 24 and the upper cover 25.

The second O-ring 6, the third O-ring 7, the fourth O-ring 11, the fifth O-ring 15, the sixth O-ring 18, the seventh O-ring 26 and the eighth O-ring 27 are all made of nitrile rubber. The upper cover 25 and the packing gland 24 are made of CF8 material.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a special automatic compensation formula copper ball valve of oxygen which characterized in that includes: the valve comprises two valve covers (1) which are symmetrically arranged, wherein spheres (14) are respectively arranged above and below the two valve covers (1), an upper valve rod (28) is connected above the sphere (14) above the spheres, the upper valve rod (28) is arranged in an upper bracket (22), and the upper bracket (22) is connected above the two valve covers (1); a lower valve rod (9) is connected below the lower sphere (14), the lower valve rod (9) is installed inside a lower bracket (13), the lower bracket (13) is connected below the space between the two valve covers (1), and a valve plug (8) is arranged at the bottom of the lower valve rod (9);

a valve seat (2) is arranged between the valve cover (1) and the ball body (14), an accommodating groove (30) is arranged in the area, corresponding to the valve seat (2), of the inner wall of the valve cover (1), an offset groove (31) communicated with the accommodating groove (30) is arranged on one side of the accommodating groove (30), the shape of the valve seat (2) is matched with that of the accommodating groove (30), a convex block (32) is arranged at the end part of the valve seat (2), and the shape of the convex block (32) is matched with that of the offset groove (31);

a spring (29) is arranged between one end of the valve seat (2) and the side wall of the accommodating groove (30), a sealing ring (4) is arranged at one end, facing the ball body (14), of the valve seat (2), and the external shape of one end, contacting the ball body (14), of the sealing ring (4) is matched with that of the ball body (14); two first O-shaped rings (3) are arranged at the top of the valve seat (2), and the first O-shaped rings (3) are in contact with the top wall of the accommodating groove (30).

2. The special automatic compensation type copper ball valve for oxygen according to claim 1, characterized in that the lower bracket (13) is connected with the valve cover (1) through a first bolt (5), and a second O-ring (6) is arranged between the valve cover (1) and the lower bracket (13).

3. The special automatic compensation type copper ball valve for oxygen according to claim 2, characterized in that a third O-ring (7) is arranged between the valve plug (8) and the lower bracket (13), and the valve plug (8) is connected with the lower bracket (13) through a first hexagon socket head cap screw (10).

4. The oxygen dedicated automatic compensation type copper ball valve according to claim 3, characterized in that a fourth O-ring (11) is arranged between the lower valve rod (9) and the lower bracket (13), and a sliding bearing (12) is arranged between the lower valve rod (9) and a ball (14) positioned below.

5. The special automatic compensation type copper ball valve for oxygen according to claim 4, characterized in that a fifth O-ring (15) is arranged between the upper support (22) and the valve cover (1), a flat key (16) is arranged between the upper valve rod (28) and the ball (14) positioned above the upper valve rod, a bushing (17) is arranged between the upper valve rod (28) and the upper support (22), a sixth O-ring (18) is arranged above the bushing (17), and the upper support (22) is formed by two parts which are connected through a second bolt (19).

6. The oxygen dedicated automatic compensation type copper ball valve according to claim 5, characterized in that an upper cover (25) is arranged above the sixth O-ring (18), a packing gland (24) is arranged above the upper cover (25), and the packing gland (24) and the upper cover (25) are connected through a third bolt (23).

7. The oxygen dedicated automatic compensation type copper ball valve according to claim 6, wherein a seventh O-ring (26) and an eighth O-ring (27) are arranged between the upper cover (25) and the upper bracket (22), the upper cover (25) and the upper bracket (22) are connected through a second hexagon socket head cap bolt (20), and a packing (21) is arranged between the packing gland (24) and the upper cover (25).