CN220688093U - Self-positioning hard sealing half ball valve with high-temperature double eccentric valve seats - Google Patents
Self-positioning hard sealing half ball valve with high-temperature double eccentric valve seats Download PDFInfo
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- CN220688093U CN220688093U CN202321799231.4U CN202321799231U CN220688093U CN 220688093 U CN220688093 U CN 220688093U CN 202321799231 U CN202321799231 U CN 202321799231U CN 220688093 U CN220688093 U CN 220688093U
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- valve seat
- double eccentric
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- 238000007789 sealing Methods 0.000 title claims abstract description 34
- 238000012856 packing Methods 0.000 claims description 30
- 210000004907 gland Anatomy 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 4
- 238000007790 scraping Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000003872 anastomosis Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a self-positioning hard sealing half ball valve with a high-temperature double eccentric valve seat, which comprises a valve cover and a valve body, wherein a fixed shaft is fixedly arranged at the center of the bottom end of the valve body, the top end of the fixed shaft is rotationally connected with a ball body, the top of the valve body is rotationally connected with a valve rod, the bottom end of the valve rod extends into the valve body and is fixedly connected with the top of the ball body through a spline, one side of the valve body is slidably provided with a displaceable valve seat, the side surface of the displaceable valve seat is fixedly provided with a valve cover, and the surface of the valve rod is fixedly provided with a stuffing box. The valve seat is adjusted to an ideal position by self-positioning to realize close anastomosis with the ball body, so that the requirements on machining precision and assembly can be greatly reduced, the production cost is reduced, the ball body adopts a double-eccentric structure design, the ball body can be separated from the valve seat immediately, unnecessary excessive extrusion and scraping phenomena of the ball body and the valve seat are greatly eliminated, the torque is reduced, the abrasion is reduced, and the service life of a sealing pair is prolonged.
Description
Technical Field
The utility model belongs to the technical field of ball valves, and relates to a high-temperature double-eccentric valve seat self-positioning hard sealing half ball valve.
Background
The ball valve is widely applied to devices in petroleum, petrochemical, metallurgical, power generation and papermaking industries, is a control element in a fluid system, and can meet various common and severe fluid cutting requirements. The general hemisphere valve is not suitable for the abominable high temperature operating mode, and the disk seat of hemisphere valve needs to improve machining precision and can find ideal position through adjusting the position in the assembly. In the working state, the common ball valve sealing pair structure has the advantages that because the medium contains complex medium working conditions such as particles, powder, viscous liquid, slurry and the like, the opening and closing torque is large in the opening and closing process of the valve, and the ball body and the valve seat sealing pair are scratched due to excessive extrusion, so that the sealing pair is easy to wear and the valve is locked, and the sealing performance and the service life of the valve are influenced.
Disclosure of Invention
The utility model aims to provide a high-temperature double-eccentric valve seat self-positioning hard sealing half ball valve so as to solve the problems in the background technology.
The aim of the utility model can be achieved by the following technical scheme: the utility model provides a high temperature double eccentric disk seat self-align hard seal half ball valve, includes valve gap and valve body, the center department of valve body bottom is fixed and is equipped with the fixed axle, the top of fixed axle rotates and is connected with the spheroid, the top of valve body rotates and is connected with the valve rod, the bottom of valve rod extends to the inside of valve body and passes through spline and spheroidal top fixed connection, one side of valve body slides and is equipped with the displaceable disk seat, but the side fixed mounting of displacement disk seat has the valve gap, and the clamping ring passes through screw and valve gap fixed connection, the fixed surface of valve rod is equipped with the packing box, it has the filler to pack between packing box and the valve rod, the top fixed mounting of packing box has the support, the top cover of valve rod is equipped with the packing and presses the cover, the bottom of packing press cover extends to the inside of packing box, the top of packing press the cover is fixed and is equipped with the gland, and the gland passes through double-screw bolt and packing box fixed connection.
In the high-temperature double-eccentric valve seat self-positioning hard sealing half ball valve, the ball body is of a double-eccentric structure.
In the high-temperature double-eccentric valve seat self-positioning hard sealing half ball valve, the valve seat is tightly matched with the ball body through self-positioning adjustment to a set position, and the valve seat and the ball body are matched and ground.
In the high-temperature double-eccentric valve seat self-positioning hard sealing half ball valve, the joint of the valve rod and the valve body is sleeved with the second sleeve.
In the high-temperature double-eccentric valve seat self-positioning hard sealing half ball valve, the joint of the fixed shaft and the ball body is sleeved with the first shaft sleeve.
In the high-temperature double-eccentric valve seat self-positioning hard sealing half ball valve, the outer wall of the stuffing box is fixedly provided with a plurality of cooling fins at equal intervals.
Compared with the prior art, the self-positioning hard sealing half ball valve with the high-temperature double eccentric valve seat has the advantages that:
1. the valve seat is adjusted to an ideal position by self-positioning to realize close fit with the ball body, so that the requirements on machining precision and assembly can be greatly reduced, and the production cost is reduced.
2. The ball adopts a double eccentric structure design, the ball can be separated from the valve seat immediately, unnecessary excessive extrusion and scraping phenomena of the ball and the valve seat are eliminated greatly, torque is reduced, abrasion is reduced, and the service life of the sealing pair is prolonged.
3. The design of the stuffing box and the cooling fin can greatly improve the applicable temperature range of the valve, and the valve can be normally used and operated under the high-temperature working condition.
Drawings
FIG. 1 is a schematic diagram of a self-positioning hard sealing half ball valve with a high temperature double eccentric valve seat.
FIG. 2 is a schematic diagram of the eccentric structure of the valve body of the self-positioning hard sealing half ball valve with the high-temperature double eccentric valve seat.
FIG. 3 is a schematic diagram of a double eccentric ball and spline connection structure of a high temperature double eccentric valve seat self-positioning hard seal half ball valve of the present utility model.
FIG. 4 is a schematic view of the self-positioning structure of the valve seat of the high-temperature double-eccentric valve seat self-positioning hard sealing half ball valve.
FIG. 5 is a schematic diagram of the structure of a heat sink of a self-positioning hard sealing half ball valve with a high temperature double eccentric valve seat according to the present utility model
In the figure, 1, a valve cover; 2. a first sleeve; 3. a fixed shaft; 4. a sphere; 5. a valve body; 6. a valve stem; 7. a second sleeve; 8. a stuffing box; 9. a packing gland; 10. a bracket; 11. packing pressing sleeve; 12. a filler; 13. a pressing ring; 14. a valve seat; 15. a heat sink.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in figures 1-5, the self-positioning hard sealing half ball valve with the high-temperature double eccentric valve seat comprises a valve cover 1 and a valve body 5, wherein a fixed shaft 3 is fixedly arranged at the center of the bottom end of the valve body 5, a ball 4 is rotationally connected to the top end of the fixed shaft 3, a valve rod 6 is rotationally connected to the top of the valve body 5, the bottom end of the valve rod 6 extends to the inside of the valve body 5 and is fixedly connected with the top of the ball 4 through a spline, the valve rod 6 is in spline connection with the ball 4, plastic deformation caused by impact of the valve rod 6 on the ball 4 is greatly reduced, the service life of the valve is prolonged, a displaceable valve seat 14 is slidably arranged on one side of the valve body 5, a valve cover 1 is fixedly arranged on the side surface of the displaceable valve seat 14, a pressing ring 13 is fixedly connected with the valve cover 1 through a screw, a packing box 8 is fixedly arranged on the surface of the valve rod 6, a packing 12 is filled between the packing box 8 and the valve rod 6, a support 10 is fixedly arranged at the top of the packing box 8, a packing box 11 is sleeved at the top of the valve rod 6, the bottom of the packing box 11 extends to the inside of the packing box 8, and a packing gland 9 is fixedly arranged at the top of the packing box 11.
As shown in figures 1, 2, 3, 4 and 5, the self-positioning hard sealing half ball valve with the high-temperature double eccentric valve seat has the advantages that the ball 4 is of a double eccentric structure, the ball 4 with the double eccentric structure can be separated from the valve seat 14 immediately, unnecessary excessive extrusion and scraping phenomena of the ball 4 and the valve seat 14 are eliminated greatly, torque is reduced, abrasion is reduced, and the service life of a sealing pair is prolonged.
The valve seat 14 is adjusted to a set position by self-positioning to realize close fit with the ball body 4, the valve seat 14 and the ball body 4 are matched and ground, the hardening treatment of the sealing surface of the valve seat 14 and the matched and ground of the ball body 4 can ensure that the sealing spherical surfaces of the ball body 4 and the valve seat 14 of the ball valve are always close fit, and meanwhile, the surface hardening treatment is carried out on the sealing surface so as to enhance the wear resistance, high temperature resistance and corrosion resistance of the valve, and the sealing reliability and the service life of the valve can be greatly improved.
The junction cover of valve rod 6 and valve body 5 is equipped with second sleeve 7, through the design of junction second sleeve 7, has improved the stability of junction, and the junction cover of fixed axle 3 and spheroid 4 is equipped with first axle sleeve 2, through the design of junction first axle sleeve 2, has improved the stability of junction, and first axle sleeve 2 and second sleeve 7 all are through the hardening treatment, and the effectual wearing and tearing valve locking that prevents because of the friction has improved valve life.
The outer wall equidistance of packing box 8 is fixed and is equipped with a plurality of fin 15, and packing box 8 adds the fin 15 design and can improve valve application temperature range by a wide margin, also can normally use the operation under high temperature operating mode.
In particular, in the use process of the ball valve, the valve seat 14 is adjusted to an ideal position through self-positioning to realize close fit with the ball 4, so that the requirements on machining precision and assembly can be greatly reduced, the ball 4 adopts a double-eccentric structure design, the ball 4 can be separated from the valve seat 14 immediately, unnecessary excessive extrusion and scraping phenomena of the ball 4 and the valve seat 14 are greatly eliminated, torque is reduced, abrasion is reduced, the service life of a sealing pair is prolonged, the applicable temperature range of the valve can be greatly improved due to the design of the stuffing box 8 and the cooling fin 15, and normal use and operation can be realized under a high-temperature working condition.
What is not described in detail in this specification is prior art known to those skilled in the art. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (6)
1. The utility model provides a high temperature double eccentric disk seat self-align hard seal half ball valve, includes valve gap (1) and valve body (5), its characterized in that, the center department of valve body (5) bottom is fixed and is equipped with fixed axle (3), the top rotation of fixed axle (3) is connected with spheroid (4), the top rotation of valve body (5) is connected with valve rod (6), the bottom of valve rod (6) extends to the inside of valve body (5) through spline and the top fixed connection of spheroid (4), one side of valve body (5) is slided and is equipped with displaceable disk seat (14), the side fixed mounting of displaceable disk seat (14) has valve gap (1), just valve gap (1), the fixed surface of valve rod (6) is equipped with packing box (8), and clamping ring (13) are through screw and valve gap (1) fixed connection, are filled with packing (12) between valve rod (6), the top fixed mounting of packing box (8) has support (10), the top cover of valve rod (6) is equipped with packing press cover (11), the bottom of packing press cover (11) extends to the inside of packing box (8), packing box (9) is equipped with packing box (9) fixed through packing gland (9).
2. The self-positioning hard sealing half ball valve with the high-temperature double eccentric valve seat according to claim 1, wherein the ball body (4) is of a double eccentric structure.
3. The self-positioning hard sealing half ball valve with the high-temperature double eccentric valve seat according to claim 1, wherein the valve seat (14) is tightly matched with the ball body (4) through self-positioning adjustment to a set position, and the valve seat (14) and the ball body (4) are in matched grinding.
4. The self-positioning hard sealing half ball valve with the high-temperature double eccentric valve seat according to claim 1, wherein a second shaft sleeve (7) is sleeved at the joint of the valve rod (6) and the valve body (5).
5. The self-positioning hard sealing half ball valve with the high-temperature double eccentric valve seat according to claim 1, wherein a first shaft sleeve (2) is sleeved at the joint of the fixed shaft (3) and the ball body (4).
6. The self-positioning hard sealing half ball valve with the high-temperature double eccentric valve seat according to claim 1, wherein a plurality of cooling fins (15) are fixedly arranged on the outer wall of the stuffing box (8) at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321799231.4U CN220688093U (en) | 2023-07-10 | 2023-07-10 | Self-positioning hard sealing half ball valve with high-temperature double eccentric valve seats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321799231.4U CN220688093U (en) | 2023-07-10 | 2023-07-10 | Self-positioning hard sealing half ball valve with high-temperature double eccentric valve seats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220688093U true CN220688093U (en) | 2024-03-29 |
Family
ID=90377104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321799231.4U Active CN220688093U (en) | 2023-07-10 | 2023-07-10 | Self-positioning hard sealing half ball valve with high-temperature double eccentric valve seats |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220688093U (en) |
-
2023
- 2023-07-10 CN CN202321799231.4U patent/CN220688093U/en active Active
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