CN212004361U - Low-temperature eccentric ball valve - Google Patents
Low-temperature eccentric ball valve Download PDFInfo
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- CN212004361U CN212004361U CN202020586264.0U CN202020586264U CN212004361U CN 212004361 U CN212004361 U CN 212004361U CN 202020586264 U CN202020586264 U CN 202020586264U CN 212004361 U CN212004361 U CN 212004361U
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Abstract
The utility model provides an eccentric ball valve is used to low temperature relates to valve technical field, including valve body and valve ball, the surface of valve body is equipped with the heat preservation, and the interior roof of valve body rotates and is connected with the valve rod, and valve ball fixed connection is in the bottom of valve rod, and the top and the bottom of valve body are respectively through bolt fixedly connected with valve gap and bottom. This eccentric ball valve is used to low temperature, when preventing that ambient temperature is lower through the heat preservation that sets up, cause certain influence to the inside medium of valve body, when letting in the low temperature medium inside the valve body, can reduce the influence that packs and receive the low temperature medium through setting up longer valve gap, greatly reduced the valve rod surface by scotch risk, it is reliable for a long time to make the valve rod seal, through setting up the effectual wearing and tearing that have reduced between valve ball and the disk seat of wear-resisting piece, and the holistic seal of device has been guaranteed, resilience through the dish spring, make wear-resisting piece contact with the valve ball all the time and seal, prevent that wear-resisting piece from influencing the leakproofness of device because of wearing and tearing.
Description
Technical Field
The utility model relates to the technical field of valves, specifically be an eccentric ball valve is used to low temperature.
Background
The eccentric ball valve is a new type valve, is a shaped product developed for solving the technical problem of conveying fine solid granular medium and two-phase flow medium of high-pressure conveying gas or solution and ore pulp, and provides a reliable control valve for influencing the normal operation of pipeline system due to easy precipitation, scaling, crystallization and separation in the solution process flow of chemical, petroleum, gas, metallurgy, electric power and water conservancy industries.
The flowing medium in the valve body of the existing eccentric ball valve can be frozen in a low-temperature environment, and when the valve is used for conveying a low-temperature medium, the filler is easy to freeze, so that when the valve is opened and closed, the surface of the valve rod is easy to scratch, and meanwhile, the sealing failure of the surface of the valve rod is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects in the prior art and providing an eccentric ball valve for low temperature.
Technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides an eccentric ball valve is used to low temperature, includes valve body and valve ball, the surface of valve body is equipped with the heat preservation, and the interior roof of valve body rotates and is connected with the valve rod, and valve ball fixed connection is in the bottom of valve rod, and the top and the bottom of valve body are respectively through bolt fixedly connected with valve gap and bottom, and the valve rod runs through the interior roof of valve body and extends to the inside of valve gap, is equipped with the pad that packs and packs between valve rod and the valve gap, the inside wall fixedly connected with disk seat of valve body, and the one end of disk seat is equipped with wear-resisting piece.
Further, the top of bottom is rotated and is connected with lower valve rod, and the bottom fixed connection of valve ball has embedded airtight ring at the top of lower valve rod in the lower valve rod, comes to support the valve ball through setting up lower valve rod, has increased the leakproofness between lower valve rod surface and the valve body inner wall through setting up airtight ring.
Further, the surface of valve rod is equipped with the sealing washer, and the sealing washer is established between the surface of the interior roof of valve body and valve rod, has restricted valve rod upward movement and has improved the leakproofness between valve body and the valve rod through setting up the sealing washer.
Furthermore, a packing gland is arranged at the top of the packing, the top of the valve cover is fixedly connected with a connecting cover through a bolt, the packing gland is fixedly connected with the inner bottom wall of the connecting cover through a bolt, and the packing gland is driven to descend through rotating the bolt, so that the bottom of the packing gland compacts the top of the packing.
Further, the top fixedly connected with connecting rod of connecting the lid, the top fixedly connected with top cap of connecting rod, bolt fixedly connected with top box is passed through at the top of top cap, and the valve rod runs through the inside of the interior roof of connecting the lid, the bottom of top cap and the bottom of top box in proper order and extends to the top box, through setting up the top box, can turn into the rotation of vertical direction with the rotation of valve rod horizontal direction.
Furthermore, the inner top wall of the top box is rotatably connected with a worm, the outer surface of the valve rod is fixedly connected with a worm wheel, the worm is meshed with the worm wheel, the worm penetrates through the inner bottom wall of the top box and extends to the front face of the top box, one end of the worm is fixedly connected with a hand wheel, and the valve rod is driven to rotate under the action of the worm and the worm wheel by rotating the hand wheel.
Compared with the prior art, the low-temperature eccentric ball valve has the following beneficial effects:
1. this eccentric ball valve is used to low temperature, when preventing that ambient temperature is lower through the heat preservation that sets up, cause certain influence to the inside medium of valve body, when letting in the low temperature medium inside the valve body, can reduce the influence that packs and receive the low temperature medium through setting up longer valve gap, greatly reduced the valve rod surface by scotch risk, it is reliable for a long time to make the valve rod seal, through setting up the effectual wearing and tearing that have reduced between valve ball and the disk seat of wear-resisting piece, and the holistic seal of device has been guaranteed, resilience through the dish spring, make wear-resisting piece contact with the valve ball all the time and seal, prevent that wear-resisting piece from influencing the leakproofness of device because of wearing and tearing.
2. This low-temperature eccentric ball valve, the valve rod comes to support the valve ball through setting up down, leakproofness between valve rod surface and the valve body inner wall has increased down through setting up the sealed ring, valve rod upward movement has been restricted and the leakproofness between valve body and the valve rod has been improved through setting up the sealing washer, drive gland through rotating the bolt and descend, make gland's bottom compaction top of packing, through setting up the top case, can turn into the rotation of vertical direction with the rotation of valve rod horizontal direction, under the effect of worm and worm wheel through rotating the hand wheel, drive the valve rod and rotate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the utility model at A;
fig. 3 is a schematic view of the top box structure of the present invention.
Wherein, 1, a valve body; 2. a heat-insulating layer; 3. a bottom cover; 4. a valve cover; 5. a filler pad; 6. a filler; 7. a connecting cover; 8. a packing gland; 9. a valve stem; 10. a valve ball; 11. a valve seat; 12. a wear-resistant block; 13. a seal ring; 14. a connecting rod; 15. a top cover; 16. a top box; 17. a worm gear; 18. a worm; 19. a hand wheel; 20. a disc spring; 21. a lower valve stem; 22. and (4) a sealing ring.
Detailed Description
As shown in fig. 1-3, the embodiment of the utility model provides an eccentric ball valve is used to low temperature, including valve body 1 and valve ball 10, the surface of valve body 1 is equipped with heat preservation 2, the interior roof of valve body 1 rotates and is connected with valve rod 9, valve ball 10 fixed connection is in the bottom of valve rod 9, bolt fixedly connected with valve gap 4 and bottom 3 are passed through respectively to the top and the bottom of valve body 1, the top of bottom 3 is rotated and is connected with lower valve rod 21, the bottom fixed connection of valve ball 10 is at the top of lower valve rod 21, it has airtight ring 22 to inlay in the lower valve rod 21, come to support providing of valve ball 10 through setting up lower valve rod 21, leakproofness between lower valve rod 21 surface and the 1 inner wall of valve body has been increased through setting up airtight ring 22.
The outer surface of the valve rod 9 is provided with a sealing ring 13, the sealing ring 13 is arranged between the inner top wall of the valve body 1 and the outer surface of the valve rod 9, the upward movement of the valve rod 9 is limited by arranging the sealing ring 13, the sealing performance between the valve body 1 and the valve rod 9 is improved, the valve rod 9 penetrates through the inner top wall of the valve body 1 and extends to the inside of the valve cover 4, a packing pad 5 and a packing 6 are arranged between the valve rod 9 and the valve cover 4, the top of the packing 6 is provided with a packing gland 8, the top of the valve cover 4 is fixedly connected with a connecting cover 7 through a bolt, the packing gland 8 is fixedly connected with the inner bottom wall of the connecting cover 7 through a bolt, the packing gland 8 is driven to descend by rotating the bolt, the bottom of the packing gland 8 is compacted on the top of the packing 6, the inner side wall of the valve body 1 is fixedly connected with a valve seat 11, top fixedly connected with top cap 15 of connecting rod 14, bolt fixedly connected with top box 16 is passed through at the top of top cap 15, valve rod 9 is run through the interior roof of connection lid 7 in proper order, the bottom of top cap 15 and the bottom of top box 16 extend to the inside of top box 16, through setting up top box 16, can turn into the rotation of vertical direction with the rotation of valve rod 9 horizontal direction, the interior roof of top box 16 rotates and is connected with worm 18, the external fixed surface of valve rod 9 is connected with worm wheel 17, worm 18 meshes with worm wheel 17 mutually, worm 18 runs through the interior roof of top box 16 and extends to the front of top box 16, the one end fixedly connected with hand wheel 19 of worm 18, through rotating hand wheel 19 under the effect of worm 18 and worm wheel 17, drive valve rod 9 and rotate.
When using low temperature to use eccentric ball valve, drive valve rod 9 through rotating hand wheel 19 under worm wheel 17 and worm 18's effect and rotate, the circulation of the inside medium of valve body 1 is closed through valve ball 10, when preventing that ambient temperature is lower through the heat preservation 2 that sets up, cause certain influence to the inside medium of valve body 1, when letting in the low temperature medium inside the valve body 1, can reduce through setting up longer valve gap 4 and pack 6 and receive the influence of low temperature medium, greatly reduced the risk that valve rod 9 surface is scotched, it is reliable for a long time to make valve rod 9 sealed, wear-resisting piece 12 is effectual to have reduced the wearing and tearing between valve ball 10 and the disk seat 11, the seal of device has been guaranteed, the life of device has been improved, rebound through dish spring 20, make wear-resisting piece 12 contact with valve ball 10 all the time and seal, prevent that wear-resisting piece 12 from influencing the leakproofness of device because of wearing and tearing.
Claims (6)
1. The utility model provides a low temperature is with eccentric ball valve, includes valve body (1) and valve ball (10), its characterized in that: the surface of valve body (1) is equipped with heat preservation (2), the interior roof of valve body (1) rotates and is connected with valve rod (9), valve ball (10) fixed connection is in the bottom of valve rod (9), the top and the bottom of valve body (1) are respectively through bolt fixedly connected with valve gap (4) and bottom (3), valve rod (9) run through the interior roof of valve body (1) and extend to the inside of valve gap (4), be equipped with between valve rod (9) and valve gap (4) packing pad (5) and filler (6), the inside wall fixedly connected with disk seat (11) of valve body (1), the one end of disk seat (11) is equipped with wear-resisting piece (12), be equipped with dish spring (20) between disk seat (11) and wear-resisting piece (12).
2. The eccentric ball valve for low temperature according to claim 1, wherein: the top of bottom (3) is rotated and is connected with lower valve rod (21), and the bottom fixed connection of valve ball (10) has sealed ring (22) at the top of lower valve rod (21), and it has in the lower valve rod (21).
3. The eccentric ball valve for low temperature according to claim 1, wherein: the outer surface of the valve rod (9) is provided with a sealing ring (13), and the sealing ring (13) is arranged between the inner top wall of the valve body (1) and the outer surface of the valve rod (9).
4. The eccentric ball valve for low temperature according to claim 1, wherein: the top of packing (6) is equipped with gland (8), and the top of valve gap (4) is through bolt fixed connection connecting cover (7), and gland (8) are through bolt fixed connection at the inner diapire of connecting cover (7).
5. The eccentric ball valve for low temperature according to claim 4, wherein: the top fixedly connected with connecting rod (14) of connecting lid (7), the top fixedly connected with top cap (15) of connecting rod (14), bolt fixedly connected with top case (16) are passed through at the top of top cap (15), and valve rod (9) run through the interior roof of connecting lid (7), the bottom of top cap (15) and the bottom of top case (16) in proper order and extend to the inside of top case (16).
6. The eccentric ball valve for low temperature according to claim 5, wherein: the inner top wall of the top box (16) is rotatably connected with a worm (18), the outer surface of the valve rod (9) is fixedly connected with a worm wheel (17), the worm (18) is meshed with the worm wheel (17), the worm (18) penetrates through the inner bottom wall of the top box (16) and extends to the front face of the top box (16), and one end of the worm (18) is fixedly connected with a hand wheel (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020586264.0U CN212004361U (en) | 2020-04-20 | 2020-04-20 | Low-temperature eccentric ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020586264.0U CN212004361U (en) | 2020-04-20 | 2020-04-20 | Low-temperature eccentric ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212004361U true CN212004361U (en) | 2020-11-24 |
Family
ID=73416304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020586264.0U Active CN212004361U (en) | 2020-04-20 | 2020-04-20 | Low-temperature eccentric ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212004361U (en) |
-
2020
- 2020-04-20 CN CN202020586264.0U patent/CN212004361U/en active Active
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