CN203627884U - High-temperature and high-pressure ball valve - Google Patents
High-temperature and high-pressure ball valve Download PDFInfo
- Publication number
- CN203627884U CN203627884U CN201320857284.7U CN201320857284U CN203627884U CN 203627884 U CN203627884 U CN 203627884U CN 201320857284 U CN201320857284 U CN 201320857284U CN 203627884 U CN203627884 U CN 203627884U
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- Prior art keywords
- valve
- valve rod
- rod
- temp
- pressure ball
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- Expired - Lifetime
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- 210000004907 gland Anatomy 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000007373 indentation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 244000258271 Galium odoratum Species 0.000 description 1
- 235000008526 Galium odoratum Nutrition 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013036 cure process Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model relates to a high-temperature and high-pressure ball valve which comprises a valve body. A valve base and a valve ball which are matched with each other are arranged inside a valve cavity of the valve body. The valve base comprises an inlet valve base and an outlet valve base. The valve ball is connected with a valve rod. A handle is connected to the outer end of the valve rod. A through adjusting sleeve is coaxially arranged at the left end of the inlet valve base. A disc spring is arranged between the adjusting sleeve and the inlet valve base. An annular groove is formed in the inner wall of an inlet channel at the left end of the adjusting sleeve. A check ring is installed inside the annular groove. According to the high-temperature and high-pressure ball valve, due to the fact that the disc spring is arranged between the adjusting sleeve and the inlet valve base, the inlet valve base and the valve ball are sealed through elasticity of the disc spring, the sealing effect is good, and media can be effectively prevented from being leaked.
Description
Technical field
The utility model relates to a kind of ball valve, is specifically related to a kind of high-temp and-pressure ball valve.
Background technique
Ball valve, with its good sealability and higher negotiability, has now developed into a kind of main valve kind, is widely used in various fields.In the High Temperature High Pressure pipeline of the industry such as electric power, petrochemical industry, use hard seal ball valve to play the effect of cutting off isolation more.There is interior leakage if play the valve of cut-out, isolation in pipeline, can cause a lot of losses of economy and secure context.
The ball valve ubiquity using at High Temperature High Pressure pipeline at present interior leakage phenomenon in various degree, the aspect such as structural design, manufacturing process of being commonly considered as valve can't meet the demand of operating mode, as inadequate in the hardness of valve ball, valve seat, it is loosening etc. that erosion resistibility shortcoming, valve seat are connected with valve body.
Model utility content
The problem existing in order to solve prior art, the utility model provides a kind of high-temp and-pressure ball valve, has good sealing effect, effectively prevents the leakage of medium.
A kind of high-temp and-pressure ball valve, comprise valve body, in the valve pocket of described valve body, be provided with the valve seat and the valve ball that match, described valve seat comprises entrance valve seat and outlet valve seat, described valve ball is connected with valve rod, the outer end of described valve rod is connected with handle, the left end of described entrance valve seat logical adjusting sleeve in being coaxially provided with, between described adjusting sleeve and described entrance valve seat, be provided with dish spring, on the inwall of the inlet channel of the left end (inflow direction of setting medium is left and right directions) of described adjusting sleeve, offer circular groove, in described circular groove, back-up ring is installed.
Conventionally, described outlet valve seat can be ringwise step-like from right to left, the inwall in the outlet port of described valve pocket step surface ringwise from left to right, the inwall interference fit in described outlet valve seat and described valve pocket outlet port.
Preferably, described valve rod comprises upper valve rod and lower valve rod, described lower valve rod is positioned at the valve rod hole of described valve body, the upper surface of described valve body is extended in its upper end, described upper valve rod is positioned at the top of described valve body, the lower end of described lower valve rod is connected with described valve ball, and between described lower valve rod and described upper valve rod, key is connected.
Further, the key that described key connects can be two semicircular keys.
Conventionally, the top of the connection part of described lower valve rod and described valve ball can be provided with annular boss, and described valve pocket is upwards provided with the recess matching with described boss.
Preferably, between described valve rod and the inwall of described valve rod hole, be filled with stuffing box packing, on described lower valve rod, also cover has Gland, and described Gland is fixedly connected with described valve body by hold-down bolt.
Conventionally, can overlap and have the dish of compression spring on the screw rod of described hold-down bolt, described compression dish spring can be between the bolt head of described hold-down bolt and described Gland.
Further, the quantity of described hold-down bolt can be 4, and 4 described hold-down bolts are evenly arranged on described Gland along same circumferential surface.
Further, on each described hold-down bolt, the quantity of sheathed described compression dish spring can be 6.
Preferably, the utility model is also provided with the support block of flange bracket and hollow columnar, between described flange bracket and described valve body, be connected by described support block, the center of described flange bracket is provided with the upper through hole that can pass for described upper valve rod, between described upper valve rod and the hole wall of described upper through hole, be dynamically connected by bearing rotary, being positioned at cover on the upper valve rod of described upper through hole has axle sleeve.
Preferably, the bottom surface of described support block is provided with the straight grooves coaxial with described support block, and the upper surface of described valve body is provided with the straight projection matching with described groove.
The beneficial effects of the utility model:
The utility model is by arranging dish spring at the left end of entrance valve seat, the impact that is subject to high-temperature high-pressure medium at the internals of ball valve expands and causes distortion, the close contact that can guarantee by the compressive strain of dish spring self valve seat and valve ball, prevents the leakage of high-temperature high-pressure medium.
Upper valve rod carries out key with lower valve rod and is connected, and by the connection of flat key flexibility, farthest reduces the impact of valve body external means on valve seal performance.
Sheathed compression dish spring on hold-down bolt, guarantees that the utility model is after long-time use, after some parts deform, by the resiliently deformable of dish spring, guarantees the sealability between valve rod and valve body.
The setting of 4 hold-down bolts, guarantees horizontal indentation sealing groove in Gland assembly process, reduces the impact on valve rod moment of torsion, guarantees the sealability between valve rod and valve body.
The straight grooves matching and straight projection, in assembling process of the present utility model, the status requirement of the groove that utilization coordinates and the relative valve body of protruding position relationship assurance flange bracket, guarantee the concentricity of upper valve rod and lower valve rod, save installation time of the present utility model, increase work efficiency, be also convenient to maintenance of the present utility model and maintenance simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the plan view of Gland and hold-down bolt;
Fig. 3 is the partial enlarged drawing on upper valve rod top;
Fig. 4 is the sectional view of support block.
Embodiment
Referring to Fig. 1, the utility model relates to a kind of high-temp and-pressure ball valve, comprise valve body 1, in the valve pocket of described valve body, be provided with the valve seat and the valve ball 2 that match, described valve seat comprises entrance valve seat 6 and outlet valve seat 7, the left end of described entrance valve seat logical adjusting sleeve 9 in being coaxially provided with, the external diameter of described adjusting sleeve equates with the entrance internal diameter of described valve body, between described adjusting sleeve and described entrance valve seat, be provided with dish spring 8, on the inwall of the inlet channel of the left end of described adjusting sleeve, offer straight grooves, back-up ring 10 is installed in described straight grooves.The utility model limits the distance between back-up ring and valve ball by back-up ring, adjusting sleeve, dish spring and entrance valve seat are set between back-up ring and described valve ball, dish spring is always in compressive state, guarantee the sealing of ball valve, the impact that is subject to high-temperature high-pressure medium at the internals of ball valve expands and causes distortion, the close contact that can guarantee by the compressive strain of dish spring valve seat and valve ball, prevents the leakage of high-temperature high-pressure medium.
Conventionally, described outlet valve seat is ringwise step-like from right to left, the inwall in the outlet port of described valve pocket step surface ringwise from left to right, the inwall interference fit in described outlet valve seat and described valve pocket outlet port.Its installation method generally can adopt temperature differential method to assemble, and valve body coordinates cylindrical numerical control machine tool by H7/x6 or the processing of the H7/y6 grade of tolerance with outlet valve seat, and the surface roughness of matching surface reaches Ra0.8 μ m.Higher assembly precision has guaranteed the special position of outlet sealing surface of seat at valve interior wall, and interference fit guarantees the relative stability of outlet valve seat, and in actual use, the stability of relative assurance valve ball, extends working life of the present utility model.
Between the outer end of described outlet valve seat and outlet passage inwall, be transition lead angle, further protected high-pressure medium to valve seat and valve body junction plane is issuable washes away.
Referring to Fig. 3, preferred, the utility model is also provided with valve rod, and one end of described valve rod connects described valve ball, and the other end of described valve rod is connected with handle 5, and described handle is fixed on described valve rod by set screw nut 51.
Preferably, described valve rod comprises upper valve rod 4 and lower valve rod 3, described lower valve rod is positioned at the valve rod hole of described valve body, the upper surface of described valve body is extended in its upper end, described upper valve rod is positioned at the top of described valve body, the lower end of described lower valve rod is connected with described valve ball, is connected, wherein preferably two semicircular keys 35 of connecting key between described lower valve rod and described upper valve rod by key.Upper valve rod is connected by woodruff key with lower valve rod, by the connection of flat key flexibility, farthest reduces the impact of valve body external means on valve seal performance.
Referring to Fig. 2, preferably, between described valve rod and the inwall of described valve rod hole, be filled with stuffing box packing 31, described stuffing box packing is made up of 4 packing rings, on described lower valve rod, also cover has Gland 32, described Gland arrives step-like ringwise, can on described valve body, offer the groove matching with the shape of described Gland, its lower end is inserted between described valve rod and described valve rod hole and is compressed filler, described Gland is fixedly connected with described valve body by hold-down bolt 33, the quantity of described hold-down bolt is 4, 4 described hold-down bolts are evenly arranged on described Gland along same circumferential surface, on each described hold-down bolt, all cover has 3 groups (6) to compress dish spring 34, and described compression dish spring is positioned on the upper surface of described Gland.By 4 hold-down bolts of even setting, guarantee horizontal indentation sealing groove in Gland assembly process, reduce the impact on valve rod moment of torsion, guarantee the sealability between valve rod and valve body, sheathed compression dish spring on hold-down bolt, guarantees that the utility model is after long-time use, after some parts deform, by the resiliently deformable of dish spring, guarantee the sealability between valve rod and valve body.
Each packing ring can adopt INCONEL reinforcement asbestos packing.Guarantee sealability.
Conventionally, the top of the connection part of described lower valve rod and described valve ball is provided with annular boss, and described valve pocket is upwards provided with the recess matching with described boss.Lower valve rod is with boss, and that has avoided that valve rod penetrated by internal poles high pressure completely may.Stem exterior surface is cure process and does polishing, when both having guaranteed the shearing of valve rod and crushing strength, can guarantee again the wear resistance of valve rod.
Preferably, the utility model is also provided with the support block 11 of flange bracket 12 and hollow columnar, between described flange bracket and described valve body, be connected by described support block, described flange bracket is provided with the upper through hole that can pass for described upper valve rod, described upper valve rod in described upper through hole is close to and is provided with packing ring 43 respectively from top to bottom, axle sleeve 42 and bearing 41, on described upper valve rod, also cover has the annular convex platform that prevents that described bearing from deviating from from described through hole, the upper surface of described convex platform contacts with the lower surface of described flange bracket, on described upper valve rod, be also arranged with shaft block ring 44, described shaft block ring is positioned on the upper surface of described packing ring.
Referring to Fig. 4, further, described support block is provided with two through holes that run through up and down, the corresponding position of described flange bracket is provided with two T-shaped through holes, corresponding valve body is provided with two tapped holes, corresponding T-shaped through hole, between through hole and tapped hole, be fixed by hexagon socket head cap screw 13, two through holes are preferably oppositely arranged, the bottom surface of described support block is provided with the straight grooves 15 coaxial with described support block, the upper surface of described valve body be provided with match with described groove straight protruding 14, described in the distance between center line of described groove, the distance of two of support block sidewalls equates.In assembling process of the present utility model, the status requirement of the groove that utilization coordinates and the relative valve body of protruding position relationship assurance flange bracket, guarantee the concentricity of upper valve rod and lower valve rod, save installation time of the present utility model, increase work efficiency, be also convenient to maintenance of the present utility model and maintenance simultaneously.
Valve body can adopt forging to process, and has guaranteed the intensity of valve body; Valve ball, valve seat all adopt metallic material, and more than its surface spraying Cemented Carbide Hardness can reach HRC53, can bear higher pressure and temperature, guarantee the safe handling of valve.
Claims (10)
1. a high-temp and-pressure ball valve, comprise valve body, in the valve pocket of described valve body, be provided with the valve seat and the valve ball that match, described valve seat comprises entrance valve seat and outlet valve seat, and described valve ball is connected with valve rod, and the outer end of described valve rod is connected with handle, logical adjusting sleeve during the left end that it is characterized in that described entrance valve seat is coaxially provided with, between described adjusting sleeve and described entrance valve seat, be provided with dish spring, on the inwall of the inlet channel of the left end of described adjusting sleeve, offer circular groove, in described circular groove, back-up ring is installed.
2. high-temp and-pressure ball valve according to claim 1, it is characterized in that described outlet valve seat is ringwise step-like from right to left, the inwall in the outlet port of described valve pocket step surface ringwise from left to right, the inwall interference fit in described outlet valve seat and described valve pocket outlet port.
3. high-temp and-pressure ball valve according to claim 1 and 2, it is characterized in that described valve rod comprises upper valve rod and lower valve rod, described lower valve rod is positioned at the valve rod hole of described valve body, the upper surface of described valve body is extended in its upper end, described upper valve rod is positioned at the top of described valve body, the lower end of described lower valve rod is connected with described valve ball, and between described lower valve rod and described upper valve rod, key is connected.
4. high-temp and-pressure ball valve according to claim 3, is characterized in that the key that described key connects is two semicircular keys.
5. high-temp and-pressure ball valve according to claim 4, is characterized in that the top of the connection part of described lower valve rod and described valve ball is provided with annular boss, and described valve pocket is upwards provided with the recess matching with described boss.
6. high-temp and-pressure ball valve according to claim 5, it is characterized in that being filled with stuffing box packing between described valve rod and the inwall of described valve rod hole, on described lower valve rod, also cover has Gland, and described Gland is fixedly connected with described valve body by hold-down bolt.
7. high-temp and-pressure ball valve according to claim 6, is characterized in that on the screw rod of described hold-down bolt, cover has the dish of compression spring, and described compression dish spring is between the bolt head and described Gland of described hold-down bolt.
8. high-temp and-pressure ball valve according to claim 7, the quantity that it is characterized in that described hold-down bolt is 4,4 described hold-down bolts are arranged on described Gland along same even circumferential, and on each described hold-down bolt, the quantity of sheathed described compression dish spring is 6.
9. high-temp and-pressure ball valve according to claim 8, it is characterized in that being also provided with the support block of flange bracket and hollow columnar, between described flange bracket and described valve body, be connected by described support block, the center of described flange bracket is provided with the upper through hole that can pass for described upper valve rod, between described upper valve rod and the hole wall of described upper through hole, be dynamically connected by bearing rotary, being positioned at cover on the upper valve rod of described upper through hole has axle sleeve.
10. high-temp and-pressure ball valve according to claim 9, is characterized in that the bottom surface of described support block is provided with the straight grooves coaxial with described support block, and the upper surface of described valve body is provided with the straight projection matching with described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320857284.7U CN203627884U (en) | 2013-12-24 | 2013-12-24 | High-temperature and high-pressure ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320857284.7U CN203627884U (en) | 2013-12-24 | 2013-12-24 | High-temperature and high-pressure ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627884U true CN203627884U (en) | 2014-06-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320857284.7U Expired - Lifetime CN203627884U (en) | 2013-12-24 | 2013-12-24 | High-temperature and high-pressure ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627884U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151572A (en) * | 2015-04-01 | 2016-11-23 | 无锡鑫华控阀业有限公司 | High-temp and-pressure ball valve |
| CN107388018A (en) * | 2017-09-08 | 2017-11-24 | 江苏科维仪表控制工程有限公司 | Pneumatic high temperature high pressure draining ball valve |
| WO2019047377A1 (en) * | 2017-09-08 | 2019-03-14 | 江苏科维仪表控制工程有限公司 | Pneumatic high-temperature high-pressure water-repellent ball valve |
-
2013
- 2013-12-24 CN CN201320857284.7U patent/CN203627884U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151572A (en) * | 2015-04-01 | 2016-11-23 | 无锡鑫华控阀业有限公司 | High-temp and-pressure ball valve |
| CN107388018A (en) * | 2017-09-08 | 2017-11-24 | 江苏科维仪表控制工程有限公司 | Pneumatic high temperature high pressure draining ball valve |
| WO2019047377A1 (en) * | 2017-09-08 | 2019-03-14 | 江苏科维仪表控制工程有限公司 | Pneumatic high-temperature high-pressure water-repellent ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
|
| CX01 | Expiry of patent term |