CN213271112U - All-metal hard-sealing ball valve - Google Patents
All-metal hard-sealing ball valve Download PDFInfo
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- CN213271112U CN213271112U CN202022252816.7U CN202022252816U CN213271112U CN 213271112 U CN213271112 U CN 213271112U CN 202022252816 U CN202022252816 U CN 202022252816U CN 213271112 U CN213271112 U CN 213271112U
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Abstract
The ball valve comprises a valve body, a disc spring, valve seats, a ball body, a valve cover and a valve rod, wherein the valve body is internally provided with two valve seats, namely an inner valve seat arranged on the inner side of the valve body and an outer valve seat arranged on the outer side of the valve body; the inner valve seat and the outer valve seat are respectively sealed and attached along the surface of the ball body; a disc spring is butted between the inner side of the valve body and the inner valve seat, the whole disc spring is annular, and the section of the disc spring is inclined; a first buffer gap and a second buffer gap are formed along two side faces of the disc spring respectively, the disc spring which is butted between the inner side of the valve body and the inner valve seat is utilized, elastic buffering is provided through the inclined section of the disc spring, rigid sealing contact is made up through the elastic buffering, the stability of the all-metal hard sealing structure is improved, the buffering of the hard sealing structure is realized, and the service life of the whole structure is prolonged.
Description
Technical Field
The application relates to the field of ball valves, in particular to an all-metal hard-close ball valve.
Background
The sealing performance of the ball valve is also greatly tested under severe working condition environments.
Aiming at the application of the ball valve in a severe environment, in order to reduce more accessory structures and improve the whole wear-resisting stability, the all-metal ball valve is often applied, but the abrasion of the all-metal structure is serious due to hard friction in the application process, and the service life is influenced.
How to improve the stability of the hard dense structure of all metal, not only realize the buffering of the hard seal structure, improve the holistic life again.
Disclosure of Invention
The purpose of the application is: the stability of the all-metal hard dense structure is improved, the buffering of the hard sealing structure is realized, and the service life of the whole structure is prolonged.
The purpose of this application is accomplished through following technical scheme, a ball valve that all metal is sealed firmly, the ball valve is including valve body, dish spring, disk seat, spheroid, valve gap and valve rod, wherein
Two valve seats are arranged in the valve body,
the two valve seats are an inner valve seat arranged on the inner side of the valve body and an outer valve seat arranged on the outer side of the valve body;
the inner valve seat and the outer valve seat are respectively sealed and attached along the surface of the ball body;
a disc spring is butted between the inner side of the valve body and the inner valve seat,
the whole disc spring is annular, and the section of the disc spring is inclined;
a first buffer gap and a second buffer gap are respectively formed along the two side surfaces of the disc spring.
Preferably, the first and second electrodes are formed of a metal,
the outer valve seat is embedded in a groove on the side wall of the valve cover;
a screw is fixed along the valve cover, and an annular pressure ring is sleeved on the screw;
the clamping ring is annularly abutted along the outer side of the outer valve seat.
Preferably, the first and second electrodes are formed of a metal,
the groove on the side wall of the valve cover is annular; the outer valve seat is also in an annular structure;
the lower side of the outer surface of the section of the outer valve seat is provided with an outer surface lower notch;
the lower notch of the outer surface is butted with the inner side of the groove of the side wall of the valve cover.
Preferably, the first and second electrodes are formed of a metal,
the upper side of the outer surface of the section of the outer valve seat is provided with an outer surface upper gap;
the edge of the notch on the outer surface is lower than the surface of the inner side wall of the valve cover.
Preferably, the first and second electrodes are formed of a metal,
the lower side of the inner surface of the section of the outer valve seat is provided with an inner surface lower notch;
the lower notch of the inner surface is butted with the surface of a pressing ring pressed on the side wall of the valve cover.
Preferably, the first and second electrodes are formed of a metal,
the upper side of the inner surface of the section of the outer valve seat is provided with an inner surface upper gap;
the edge of the gap on the inner surface is sealed and attached to the surface of the sphere.
Compared with the prior art, the application has the following obvious advantages and effects:
1. the disc spring butted between the inner side of the valve body and the inner valve seat is utilized, elastic buffering is provided through the inclined section of the disc spring, rigid sealing contact is made up through the elastic buffering, the stability of the all-metal rigid sealing structure is improved, the buffering of the rigid sealing structure is realized, and the service life of the whole structure is prolonged.
Drawings
Fig. 1 is a diagram of the overall structural arrangement of the present application.
Fig. 2 is an enlarged view of the structure of the portion a in fig. 1 of the present application.
List of parts in this application
Detailed Description
Specific embodiments thereof are described below in conjunction with the following description and the accompanying drawings to teach those skilled in the art how to make and use the best mode of the present application. For the purpose of teaching application principles, the following conventional aspects have been simplified or omitted. Those skilled in the art will appreciate variations from these embodiments that fall within the scope of the application. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the present application. In the present application, the terms "upper", "lower", "left", "right", "middle" and "one" are used for clarity of description, and are not used to limit the scope of the invention, and the relative relationship between the terms and the corresponding terms may be changed or adjusted without substantial technical change. Thus, the present application is not limited to the specific embodiments described below, but only by the claims and their equivalents.
Fig. 1-2 illustrate one embodiment of an all metal hard-seal ball valve of the present application.
An all-metal hard-sealing ball valve 100 comprises a valve body 1, a disc spring 2, valve seats, a ball body 4, a valve cover 11 and a valve rod 12, wherein two valve seats are arranged inside the valve body 1, namely an inner valve seat 3 arranged on the inner side of the valve body 1 and an outer valve seat 7 arranged on the outer side of the valve body 1; the inner valve seat 3 and the outer valve seat 7 are respectively sealed and attached along the surface of the ball body 4; the disc spring 2 is butted between the inner side of the valve body 1 and the inner valve seat 3, the whole disc spring 2 is annular, and the section of the disc spring is inclined; a first buffer gap 2a and a second buffer gap 2b are respectively formed along two side faces of the disc spring 2, the disc spring 2 butted between the inner side of the valve body 1 and the inner valve seat 3 is utilized, elastic buffering is provided through the inclined cross section of the disc spring 2, the elastic buffering is utilized to make up hard sealing contact, the stability of the all-metal hard sealing structure is improved, the buffering of the hard sealing structure is realized, and the service life of the whole structure is prolonged.
Design structure characteristic description:
1. the ball valve 100 is entirely characterized by an all-metal meter: the back of the valve seat is not provided with non-metallic materials such as graphite, PTFE materials and the like, so that a sealing element on the back of the valve seat is not arranged, 100% grinding and sealing are carried out between the back of the valve seat and the valve cover, and the sealing is reliable. The internal leakage of the valve caused by each valve action and high erosion is prevented. Simultaneously, the front sealing surface and the rear sealing surface are matched and ground with the ball valve body to ensure integral sealing, the service life of the common valve is prolonged by more than 3 times, the valve seat can be independently replaced, and the disc spring 2 is utilized to form an elastic sealing buffering effect.
2. The ball valve 100 protects the primary sealing surface by separating the valve seat from the fluid path when the valve is in the open and closed positions. The valve seat is exposed to the gas flow only during opening and closing. But this process is short due to the fast swing operation of the valve. By protecting the sealing surfaces of the ball valve 100, the valve can be closed more tightly and the 3 times longer service life of a typical valve can be extended.
Wherein packing 25, 26 is packed up along stem 12, packing gland 15 and packing pressure plate 16 above the packing are used to seal between structures and avoid exposure of the upper surface.
3. Overall structure is novel to adopt thrust pad 13, 14 to fix a position valve rod 12, wherein, pneumatic means 19 is adopted at the top to drive valve rod 12, and overall structure realizes the simplicity, therefore easy maintenance.
It is further noted that, as shown in fig. 1 and 2, in the embodiment of the present application,
the all-metal hard-sealing ball valve 100 comprises a valve body 1, a disc spring 2, a valve seat, a ball body 4, a valve cover 11 and a valve rod 12, wherein the valve seat is respectively arranged along the left side and the right side.
Combining the butt-joint structure of the valve body 1 and the valve cover 11, two valve seats are fixedly embedded in the valve body 1, and the ball body 4 is sealed along the left side and the right side.
The two valve seats are an inner valve seat 3 and an outer valve seat 7 on the left side and the right side, and both the two valve seats are of annular structures.
Wherein, the inboard binding site with valve body 1 of valve body 1 is located to interior disk seat 3, and the binding site with valve gap 11 in the valve body 1 outside is located to outer disk seat 7, fixes the back along the left and right sides steadily, and then realizes the sealed of spheroid 4 left and right sides, and wherein interior disk seat 3 seals the laminating along the surface of spheroid 4 respectively with outer disk seat 7, and then sets up the butt joint structure of buffering, wherein, docks butterfly spring 2 between valve body 1 inboard and the interior disk seat 3.
With the specific structure shown in fig. 1, the disc spring 2 is annular and has an inclined cross section, so as to ensure the elastic buffering effect; wherein, form the buffer structure of Z shape along the left and right sides face of dish spring 2, in the concrete scheme, be formed with buffering clearance one 2a and buffering clearance two 2b along the both sides face of dish spring 2 respectively. The left gap and the right gap form a buffering butt joint, and as can be seen from fig. 2, the first buffering gap 2a and the second buffering gap 2b are both triangular buffering gaps.
It should be noted that, as shown in fig. 1 and 2, in the embodiment of the present application,
in order to further assist the buffering vibration of the outer valve seat 7, the outer valve seat 7 can be positioned through the annular pressing ring 6, and the outer valve seat 7 can be positioned by using the pressing ring 6, wherein in the auxiliary fixing structure, the outer valve seat 7 is embedded in a groove in the side wall of the valve cover 11; be fixed with screw 5 along on the valve gap 11 to utilize screw 5 to form detachable structure, and cup jointed annular clamping ring 6 on screw 5, realize the location through extrusion and conflict, consequently clamping ring 6 is annular conflict along the external valve seat 7 outside.
It should be noted that, as shown in fig. 1 and 2, in the embodiment of the present application,
in the leading-in structure, the groove on the side wall of the valve cover 11 is annular for the convenience of auxiliary installation and positioning; the outer valve seat 7 is also in an annular structure; an outer surface lower notch 71 is arranged on the lower side of the outer surface of the section of the outer valve seat 7; the lower outer surface notch 71 is in guiding contact with the inner side of the groove in the side wall of the bonnet 11.
Specifically, as shown in fig. 1 and 2, in the embodiment of the present application,
for the sealing performance of the auxiliary structure, the sealing rubber can be filled along the inside, for example, the sealing rubber can flow out along the outer surface upper notch 72 when the outer surface lower notch 71 is filled, and certainly, the outer surface upper notch 72 is arranged on the upper side of the outer surface of the section of the outer valve seat 7 in the dismounting process; the outer valve seat 7 can also be detached through the notch 72 on the outer surface, wherein the edge of the notch 72 on the outer surface is lower than the surface of the inner side wall of the valve cover 11, so that the positioning along the inner side wall of the valve cover 11 is convenient.
It is further noted that, as shown in fig. 1 and 2, in the embodiment of the present application,
in combination with a specific butt-sealing structure, an inner surface lower gap 73 is formed through the lower side of the inner surface of the section of the outer valve seat 7; and the lower notch 73 of the inner surface is in sealing butt joint with the surface of the pressing ring 6 pressed on the side wall of the valve cover 11, so that a gap is blocked, the sealing performance is improved, and the buffering vibration in positioning can be rebounded through the whole pressing ring 6.
It should be noted that, as shown in fig. 1 and 2, in the embodiment of the present application,
the surface of the ball 4 is combined for sealing butt joint, and the upper side of the inner surface of the section of the outer valve seat 7 is provided with an inner surface upper notch 74; the stabilizing effect of the bond is further enhanced by the edge sealing engagement of the inner surface indentation 74 against the surface of the ball 4.
Since any modifications, equivalents, improvements, etc. made within the spirit and principles of the application may readily occur to those skilled in the art, it is intended to be included within the scope of the claims of this application.
Claims (6)
1. The utility model provides a hard close ball valve of all-metal, ball valve (100) including valve body (1), dish spring (2), disk seat, spheroid (4), valve gap (11) and valve rod (12), its characterized in that: the above-mentioned
Two valve seats are arranged in the valve body (1),
the two valve seats are an inner valve seat (3) arranged on the inner side of the valve body (1) and an outer valve seat (7) arranged on the outer side of the valve body (1);
the inner valve seat (3) and the outer valve seat (7) are respectively sealed and attached along the surface of the sphere (4);
a disc spring (2) is oppositely connected between the inner side of the valve body (1) and the inner valve seat (3),
the whole disc spring (2) is annular, and the section of the disc spring is inclined;
a first buffer gap (2a) and a second buffer gap (2b) are formed along two side surfaces of the disc spring (2).
2. The all-metal hard-dense ball valve according to claim 1, wherein: the above-mentioned
The outer valve seat (7) is embedded in a groove on the side wall of the valve cover (11);
a screw (5) is fixed along the valve cover (11), and an annular pressure ring (6) is sleeved on the screw (5);
the press ring (6) is annularly abutted along the outer side of the outer valve seat (7).
3. The all-metal hard-dense ball valve according to claim 2, wherein: the above-mentioned
The groove on the side wall of the valve cover (11) is annular; the outer valve seat (7) is also in an annular structure;
the lower side of the outer surface of the section of the outer valve seat (7) is provided with an outer surface lower notch (71);
the lower notch (71) of the outer surface is butted with the inner side of the groove of the side wall of the valve cover (11).
4. The all-metal hard-dense ball valve according to claim 3, wherein: the above-mentioned
The upper side of the outer surface of the section of the outer valve seat (7) is provided with an outer surface upper gap (72);
the edge of the notch (72) on the outer surface is lower than the surface of the inner side wall of the valve cover (11).
5. The all-metal hard-dense ball valve according to claim 3, wherein: the above-mentioned
An inner surface lower gap (73) is arranged on the lower side of the inner surface of the section of the outer valve seat (7);
the lower notch (73) of the inner surface is butted with the surface of a pressing ring (6) pressed on the side wall of the valve cover (11).
6. The all-metal hard-dense ball valve according to claim 3, wherein: the above-mentioned
The upper side of the inner surface of the section of the outer valve seat (7) is provided with an inner surface upper gap (74);
the edge of the notch (74) on the inner surface is sealed and attached to the surface of the sphere (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022252816.7U CN213271112U (en) | 2020-10-12 | 2020-10-12 | All-metal hard-sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022252816.7U CN213271112U (en) | 2020-10-12 | 2020-10-12 | All-metal hard-sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213271112U true CN213271112U (en) | 2021-05-25 |
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ID=75948432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022252816.7U Active CN213271112U (en) | 2020-10-12 | 2020-10-12 | All-metal hard-sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213271112U (en) |
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2020
- 2020-10-12 CN CN202022252816.7U patent/CN213271112U/en active Active
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