CN213808974U - Ball valve capable of being maintained on line - Google Patents
Ball valve capable of being maintained on line Download PDFInfo
- Publication number
- CN213808974U CN213808974U CN202022716088.0U CN202022716088U CN213808974U CN 213808974 U CN213808974 U CN 213808974U CN 202022716088 U CN202022716088 U CN 202022716088U CN 213808974 U CN213808974 U CN 213808974U
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- valve
- valve seat
- valve body
- baffle
- hemisphere
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Abstract
The utility model relates to a ball valve that can maintain on line. The utility model provides a ball valve, the installing opening who sets up on its inside hemisphere, disk seat subassembly and disk seat baffle all packs into through the valve body, opens the valve gap and can realize online maintenance or change to the ball valve. The utility model discloses a disk seat subassembly passes through the disk seat baffle and carries on spacingly to the disk seat subassembly, prevents that the disk seat from breaking away from the valve body, can make things convenient for the dismouting to be used for maintaining the change simultaneously. The utility model discloses a disk seat baffle is that outer ring portion part or whole spacing in the disk seat baffle spacing inslot of valve body inner wall, ensures that the disk seat subassembly does not drop, and is more stable.
Description
Technical Field
The utility model relates to a ball valve that can maintain on line.
Background
With the continuous development of the domestic and foreign pipeline oil and gas transportation industry, pipeline valves are more and more widely applied, and the oil and gas pipeline valves cannot be stopped, dismantled and maintained regularly, and need to be maintained online in many times. On the other hand, the existing valves and pipelines or devices are connected in a welding mode, the whole valve needs to be disassembled when the valve is maintained, the valve is not easy to disassemble from the pipelines or devices, the welding connection valve is mainly disassembled by adopting a flame cutting method at present, and the disassembling process is very difficult and dangerous.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the shortcoming and not enough that prior art exists, and provide a ball valve that can maintain on line.
The utility model discloses the technical scheme who takes as follows: a ball valve capable of being maintained on line comprises a valve body, a valve seat assembly, a hemisphere, a valve rod and a valve cover, wherein the valve body is provided with a fluid inlet, a fluid outlet and an installation opening;
the valve seat assembly comprises a valve seat ring, a spring gasket and a spring, a valve seat limiting cavity is formed between the valve seat baffle and the valve body, the valve seat assembly is limited in the valve seat limiting cavity, the spring is arranged between the spring gasket and the inner wall of the valve body, the valve seat ring is arranged between the spring gasket and the valve seat baffle, and the valve seat ring is in sealing fit with the hemispheroid under the action of the spring gasket and the spring;
the valve body inner wall is equipped with disk seat baffle spacing groove, the disk seat baffle is formed by the combination of at least two arcs that radian is less than 180 degrees, the outer loop of arc is at least partly spacing in disk seat baffle spacing inslot.
A first sealing piece groove is formed between the valve seat ring and the valve body, a first sealing piece is arranged in the first sealing piece groove, a first convex ring is arranged on one side, close to the valve seat baffle, of the spring gasket, and the first convex ring extends into the first sealing piece groove and abuts against the first sealing piece; one side that the disk seat baffle was kept away from to the disk seat circle is equipped with the protruding ring of second, the laminating of second protruding ring outer wall portion and valve body inner wall and be equipped with the second sealing member between protruding ring outer wall of second and the valve body inner wall.
The end face of one end, abutted to the first convex ring, of the first sealing piece is an inner inclined plane, and the end face of one end, abutted to the first sealing piece, of the first convex ring is an outer inclined plane matched with the first sealing piece.
The arc-shaped piece is connected with the inner wall of the valve body through a first bolt.
The outer ring of one side of the valve seat ring close to the hemisphere is provided with an annular groove matched with the valve seat baffle, and the inner ring of the arc-shaped part is positioned in the annular groove.
The valve seat baffle is formed by symmetrically arranging and combining two arc-shaped pieces.
Be equipped with seal assembly on the hemispheroid, seal assembly include with the sealed piece of the sealed complex of valve seat circle, sealed piece just through second bolted connection on the hemispheroid be equipped with the winding gasket between sealed piece and the hemispheroid.
The mounting opening is arranged at the upper end of the valve body, and the valve rod penetrates through the valve cover to be matched with the hemispheroid.
The utility model has the advantages as follows: the utility model provides a ball valve, the installing opening who sets up on its inside hemisphere, disk seat subassembly and disk seat baffle all packs into through the valve body, opens the valve gap and can realize online maintenance or change to the ball valve. The utility model discloses a disk seat subassembly passes through the disk seat baffle and carries on spacingly to the disk seat subassembly, prevents that the disk seat from breaking away from the valve body, can make things convenient for the dismouting to be used for maintaining the change simultaneously. The utility model discloses a disk seat baffle is that outer ring portion part or whole spacing in the disk seat baffle spacing inslot of valve body inner wall, ensures that the disk seat subassembly does not drop, and is more stable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced 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 obtained from these drawings still belong to the scope of the present invention without inventive laboriousness.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view taken at point I in FIG. 1;
FIG. 3 is an enlarged view at II in FIG. 1;
FIG. 4 is a schematic structural view of a valve body;
FIG. 5 is a sectional view (A) and a side view (B) of the valve seat baffle;
FIG. 6 is a schematic size diagram of the valve body, hemisphere and valve seat;
in the figure, 1, a valve body; 101, a mounting opening; 102, a valve seat baffle limiting groove; 2, a valve seat assembly; 201, a valve seat ring; 2011, a second collar; 2012, a ring groove; 202, a spring washer; 2021, a first male ring; 203, a spring; 204, a first seal; 205, a second seal; 3, sealing the assembly; 301, sealing the block; 302, a second bolt; 303, winding the gasket; 4, hemispheroid; 5, a valve seat baffle; 501, an arc-shaped piece; 6, a valve cover; 7, a valve rod; and 8, a first bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of expression and should not be understood as limitations to the embodiments of the present invention, and the following embodiments do not describe any more.
The terms of direction and position in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings. Accordingly, the use of directional and positional terms is intended to illustrate and understand the present invention and is not intended to limit the scope of the invention.
As shown in fig. 1, an online maintenance ball valve comprises a valve body 1, a valve seat assembly 2, a hemisphere 4, a valve rod 7 and a valve cover 6, wherein the valve body 1 is provided with a fluid inlet, a fluid outlet and an installation opening 101, the hemisphere 4 is located on a fluid channel between the fluid inlet and the fluid outlet, the valve cover 6 is arranged at the installation opening 101 and detachably connected with the valve body 1,
the inner cavity of the valve body 1 is detachably connected with a valve seat baffle plate 5, and the hemisphere 4, the valve seat assembly 2 and the valve seat baffle plate 5 can enter or leave the inner cavity of the valve body 1 through the mounting opening 101.
As shown in fig. 2, a sealing assembly 3 is arranged on the hemisphere 4, the sealing assembly 3 includes a sealing block 301 which is in sealing fit with the valve seat ring 201, the sealing block 301 is connected to the hemisphere 4 through a second bolt 302, and a winding gasket 303 is arranged between the sealing block 301 and the hemisphere 4.
As shown in fig. 3, the valve seat assembly 2 includes a valve seat ring 201, a spring washer 202, and a spring 203, a valve seat limiting cavity is formed between the valve seat baffle 5 and the valve body 1, the valve seat assembly 2 is limited in the valve seat limiting cavity, the spring 203 is disposed between the spring washer 202 and the inner wall of the valve body 1, the valve seat ring 201 is disposed between the spring washer 202 and the valve seat baffle 5, and the valve seat ring 201 is in sealing fit with the hemisphere 4 under the action of the spring washer 202 and the spring 203;
as shown in fig. 4, a valve seat baffle limiting groove 102 is formed in the inner wall of the valve body 1, as shown in fig. 5, the valve seat baffle 5 is formed by combining at least two arc-shaped pieces 501 with a radian smaller than 180 degrees, and at least part of the outer ring of the arc-shaped piece 501 is limited in the valve seat baffle limiting groove 102.
In this embodiment, the arc 501 is connected to the inner wall of the valve body 1 by the first bolt 8.
As shown in fig. 6, in the present embodiment, the diameter a of the mounting opening 101 is larger than the mounting dimension B of the hemisphere 4 (i.e., the maximum width thereof) so that the hemisphere 4 can enter and exit the inner cavity of the valve body 1 from the mounting opening 101, and at the same time, the diameter a of the mounting opening 101 is larger than the mounting dimension C of the valve seat assembly 2 (the maximum diameter of the valve seat ring in the present embodiment), so that the valve seat assembly 2 can enter and exit the inner cavity of the valve body 1 from the mounting opening 101. The valve seat baffle 5 is formed by combining at least two arc-shaped pieces 501 with the radian smaller than 180 degrees, and the arc-shaped pieces 501 can independently enter and exit the mounting opening 101.
During installation this embodiment, put into valve body 1 corresponding position earlier with valve seat subassembly 2, then put into the valve seat baffle spacing groove 102 in the valve body 1 with arc 501, then install first bolt 8 and make arc 501 and valve body 1 inner wall connection fastening, later put into hemisphere 4, valve rod 7 again, cover valve gap 6, online maintenance is then the order is opposite.
As shown in fig. 3, a first seal groove is formed between the valve seat ring 201 and the valve body 1, a first seal 204 is arranged in the first seal groove, a first convex ring 2021 is arranged on one side of the spring washer 202 close to the valve seat baffle 5, and the first convex ring 2021 extends into the first seal groove and abuts against the first seal 204; one side that valve seat circle 201 kept away from valve seat baffle 5 is equipped with second bulge loop 2011, second bulge loop 2011 outer wall portion is equipped with second sealing member 205 with valve body inner wall laminating and between second bulge loop 2011 outer wall and the valve body inner wall. Through the arrangement, the sealing performance can be improved, and leakage can be reduced.
Further, an end surface of the first sealing element 204 abutting against the first convex ring 2021 is an inner slope, and an end surface of the first convex ring 2021 abutting against the first sealing element 204 is an outer slope matched with the first sealing element 204. The first sealing member 204 is pressed by the spring washer 202 to seal with the valve body 1.
The outer loop that valve seat circle 201 is close hemisphere 4 one side is equipped with the annular 2012 with valve seat baffle 5 adaptation, arc 501 inner ring is located annular 2012.
In this embodiment, as shown in fig. 5, the valve seat baffle 5 is formed by two arc-shaped pieces 501 symmetrically arranged and combined. The number of arcuate members 501 may also be increased, but the relative installation may be more cumbersome.
In this embodiment, the mounting opening 101 is provided at the upper end of the valve body 1, and the valve stem 7 is fitted to the hemisphere 4 through the bonnet 6.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (8)
1. The utility model provides a ball valve that can maintain on line, includes valve body (1), valve seat subassembly (2), hemisphere (4), valve rod (7), valve gap (6), be equipped with fluid inlet, fluid outlet, installation opening (101) on valve body (1), hemisphere (4) are located the fluid passage between fluid inlet and the fluid outlet, valve gap (6) set up and can dismantle with valve body (1) in installation opening (101) department and be connected its characterized in that:
the inner cavity of the valve body (1) is detachably connected with a valve seat baffle (5), and the hemisphere (4), the valve seat assembly (2) and the valve seat baffle (5) can enter or leave the inner cavity of the valve body (1) through the mounting opening (101);
the valve seat assembly (2) comprises a valve seat ring (201), a spring gasket (202) and a spring (203), a valve seat limiting cavity is formed between the valve seat baffle plate (5) and the valve body (1), the valve seat assembly (2) is limited in the valve seat limiting cavity, the spring (203) is arranged between the spring gasket (202) and the inner wall of the valve body (1), the valve seat ring (201) is arranged between the spring gasket (202) and the valve seat baffle plate (5), and the valve seat ring (201) is in sealing fit with the hemispherical body (4) under the action of the spring gasket (202) and the spring (203);
the valve seat baffle limiting groove (102) is formed in the inner wall of the valve body (1), the valve seat baffle (5) is formed by combining at least two arc-shaped pieces (501) with radian smaller than 180 degrees, and at least part of the outer ring of each arc-shaped piece (501) is limited in the valve seat baffle limiting groove (102).
2. The on-line serviceable ball valve of claim 1, wherein: a first sealing element groove is formed between the valve seat ring (201) and the valve body (1), a first sealing element (204) is arranged in the first sealing element groove, a first convex ring (2021) is arranged on one side, close to the valve seat baffle (5), of the spring gasket (202), and the first convex ring (2021) extends into the first sealing element groove and abuts against the first sealing element (204); one side that valve seat baffle (5) were kept away from in valve seat circle (201) is equipped with second bulge loop (2011), second bulge loop (2011) outer wall part and valve body inner wall laminating and second bulge loop (2011) outer wall and valve body inner wall between be equipped with second sealing member (205).
3. An on-line serviceable ball valve as set forth in claim 2, further comprising: the end face of one end, abutted to the first convex ring (2021), of the first sealing element (204) is an inner inclined face, and the end face of one end, abutted to the first sealing element (204), of the first convex ring (2021) is an outer inclined face matched with the first sealing element (204).
4. The on-line serviceable ball valve of claim 1, wherein: the arc-shaped piece (501) is connected with the inner wall of the valve body (1) through a first bolt (8).
5. An on-line serviceable ball valve according to claim 1 or 4, characterized in that: the outer loop that valve seat circle (201) is close hemisphere (4) one side is equipped with annular (2012) with valve seat baffle (5) adaptation, arc (501) inner ring is located annular (2012).
6. An on-line serviceable ball valve according to any of claims 1-4, wherein: the valve seat baffle (5) is formed by symmetrically arranging and combining two arc-shaped pieces (501).
7. The on-line serviceable ball valve of claim 1, wherein: be equipped with seal assembly (3) on hemisphere (4), seal assembly (3) include with valve seat circle (201) seal complex sealed piece (301), sealed piece (301) are connected on hemisphere (4) through second bolt (302) and be equipped with winding gasket (303) between sealed piece (301) and hemisphere (4).
8. The on-line serviceable ball valve of claim 1, wherein: the mounting opening (101) is formed in the upper end of the valve body (1), and the valve rod (7) penetrates through the valve cover (6) to be matched with the hemispheroid (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022716088.0U CN213808974U (en) | 2020-11-20 | 2020-11-20 | Ball valve capable of being maintained on line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022716088.0U CN213808974U (en) | 2020-11-20 | 2020-11-20 | Ball valve capable of being maintained on line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213808974U true CN213808974U (en) | 2021-07-27 |
Family
ID=76937645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022716088.0U Active CN213808974U (en) | 2020-11-20 | 2020-11-20 | Ball valve capable of being maintained on line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213808974U (en) |
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2020
- 2020-11-20 CN CN202022716088.0U patent/CN213808974U/en active Active
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