CN202195103U - Metal hard seal body valve seat ball valve - Google Patents
Metal hard seal body valve seat ball valve Download PDFInfo
- Publication number
- CN202195103U CN202195103U CN2011203312806U CN201120331280U CN202195103U CN 202195103 U CN202195103 U CN 202195103U CN 2011203312806 U CN2011203312806 U CN 2011203312806U CN 201120331280 U CN201120331280 U CN 201120331280U CN 202195103 U CN202195103 U CN 202195103U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- valve seat
- ball
- ball valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000002184 metal Substances 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 210000004907 gland Anatomy 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 abstract 1
- 229910052755 nonmetal Inorganic materials 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 239000010953 base metal Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
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Abstract
A metal hard seal body valve seat ball valve comprises a main valve body, a disc spring, a valve seat, a ball body, a middle flange gasket, a bolt nut, an auxiliary valve body, a valve rod, a packing gland and a handle. The ball valve is characterized in that a sealing arc-shaped surface which is completely matched with the ball body is directly processed on the auxiliary valve body, the sealing surface is formed by cutting and processing through a machine tool and grinding through special equipment, and meanwhile, the arc-shaped surface is subjected to surface hardening treatment so as to enhance the wear-resisting, temperature-resisting and corrosion-resisting capabilities of the ball valve. The sealing cambered surface on the auxiliary valve body is the sealing cambered surface of the main valve seat, replaces the traditional downstream valve seat of the ball valve, avoids the phenomenon that the traditional downstream valve seat and the sealing ring can control the leakage in the valve after being opened and closed for many times by media or the valve, and greatly improves the sealing reliability and the service life of the valve.
Description
Affiliated technical field
The utility model belongs to valve technology field, particularly a kind of metal hard-sealing body valve seat ball valve.
Background technique
Ball valve is swift to operate because of it, and flow resistance is little and be widely used in the commercial production pipelines such as petrochemical industry, electric power, metallurgy, environmental protection, is a kind of general engineering goods; Conventional metal hard-sealing ball valve, when clockwise rotating 90 ° on handle, this moment, the port hole of spheroid was vertical with the runner of valve; The lonely face of the sphere of spheroid and the sealing of valve seat is closed, and the realization ball valve is closed, otherwise then opens; Known valve seat is made up of with nonmetal seal ring made; Because the keying repeatedly of ball valve can be led the manufacture-illegal metal o-ring and receive extrusion-deformation repeatedly, or receive medium burn into high temperature, high pressure influence and produce swelling; Make between valve seat, nonmetal seal ring and valve body and produce leakage point, cause ball valve to leak in producing and can't use.
Summary of the invention
Between the valve seat that overcomes existing metal hard-sealing ball valve, nonmetal seal ring and valve body; Because the keying repeatedly of ball valve; Can lead the manufacture-illegal metal o-ring and receive extrusion-deformation repeatedly; Or receive medium burn into high temperature, high pressure influence and produce swelling, can make to produce between valve seat, nonmetal seal ring and valve body outside this deficiency of leakage point, the utility model provides a kind of simple in structure, metal hard-sealing body valve seat ball valve that sealing is reliable, easy to operate.
The technological scheme of the utility model: the described metal hard-sealing body of the utility model valve seat ball valve, comprise main valve body, belleville spring, valve seat, spheroid, middle flange gasket, bolt and nut, auxiliary valve body, valve rod, Gland, handle, it is characterized in that on the auxiliary valve body of described metal hard-sealing ball valve; Directly process the sealing arc shaped surface that fits like a glove with spheroid; Replace traditional ball valve to set up downstream valve seat and nonmetal seal ring herein, behind the valve seat of the upper reaches of main valve body, installed belleville spring additional; Under its thrust; The sealing arc shaped surface of the spheroid of this ball valve and auxiliary valve body is tight connecting all the time, and the sealing surface that fits like a glove with spheroid on the described auxiliary valve body is to process through machine cut; Grind through special device again and form; Simultaneously the sealing cambered surface is carried out surface hardening and handle, it is wear-resisting to strengthen, heatproof, corrosion resistant ability, sealing reliability and the working life that can improve valve widely.
The beneficial effect of the utility model is: because metal hard-sealing body valve seat ball valve is on auxiliary valve body; Directly process the sealing arc shaped surface that fits like a glove with spheroid; Replaced traditional ball valve to set up downstream valve seat and nonmetal seal ring herein, constituted the sealing of ball valve, owing to cancelled the downstream valve seat and the nonmetal seal ring at auxiliary valve body place with spheroid; Ball valve is when switch; Directly produce sealing by auxiliary valve body and spheroid, thereby avoided ball valve in using process produces, to leak phenomenon, the sealing reliability and the working life of having improved valve widely.
Description of drawings
Accompanying drawing: the 1st, the structure sectional view of the utility model
The 2nd, spheroid and the auxiliary valve body view that coincide
The 3rd, auxiliary valve body seals lonely face view
1. main valve bodies in the accompanying drawing, 2. belleville spring 3. valve seats, 4. spheroid, 5. in flange gasket, 6. bolt and nut, 7. auxiliary valve body, 8. valve rod, 9. Gland, 10. handle.
Embodiment
Embodiment below in conjunction with description of drawings the utility model:
As shown in the figure, the metal hard-sealing body valve seat ball valve of the utility model comprises main valve body 1, belleville spring 2, valve seat 3, spheroid 4, middle flange gasket 5, bolt and nut 6, auxiliary valve body 7, valve rod 8, Gland 9, handle 10; When ball valve was opening state, the port hole of spheroid 4 was consistent with the port hole of valve, and the top of valve rod 8 and handle 10 link; The bottom has rectangular side's tenon to be inserted in the square tongue-and-groove of spheroid 4, it is characterized in that described ball valve, and handle 10 to valve flowing channel line is vertical when clockwise rotating; Handle 10 drives valve rod 8 and spheroid 4 simultaneously, half-twist, and this moment, the port hole of ball valve was vertical with the runner line of valve; Spheroid 4 coincide with the sealing cambered surface on the auxiliary valve body 7, under the effect of the pretightening force of the pressure of medium itself and belleville spring 2; Form the directly identical sealing of sealing cambered surface of spheroid 4 and auxiliary valve body 7, valve closing is because the utility model has adopted above-mentioned technology; When making valve closing, the part of the identical sealing of auxiliary valve body 7 and spheroid 4 forms the hard seal valve seat of base metal; Thereby avoided between traditional valve seat, nonmetal seal ring and the valve body,, can lead the manufacture-illegal metal o-ring and receive extrusion-deformation repeatedly because of receiving the keying repeatedly of ball valve; Or receive medium burn into high temperature, high pressure influence and produce swelling; Can make and produce this drawback of leakage point between valve seat, nonmetal seal ring and valve body, the sealing reliability and the working life of having improved valve widely, can replace the existing metal hard-sealing ball valve that uses traditional valve seat technology fully.
Claims (1)
1. metal hard-sealing body valve seat ball valve; Comprise main valve body, belleville spring, valve seat, spheroid, middle flange gasket, bolt and nut, auxiliary valve body, valve rod, Gland, handle; It is characterized in that cancelling the downstream valve seat on the ball valve; Directly processing and the corresponding sealing cambered surface of spheroid sphere on auxiliary valve body is with the identical sealing of spheroid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203312806U CN202195103U (en) | 2011-09-01 | 2011-09-01 | Metal hard seal body valve seat ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203312806U CN202195103U (en) | 2011-09-01 | 2011-09-01 | Metal hard seal body valve seat ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202195103U true CN202195103U (en) | 2012-04-18 |
Family
ID=45950012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203312806U Expired - Fee Related CN202195103U (en) | 2011-09-01 | 2011-09-01 | Metal hard seal body valve seat ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202195103U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788169A (en) * | 2012-08-30 | 2012-11-21 | 科普蓝(上海)阀门工业有限公司 | Integral-valve seat type ball valve |
| CN103090181A (en) * | 2013-02-04 | 2013-05-08 | 连云港远洋流体装卸设备有限公司 | Ship-use low-temperature fluid loading and unloading device |
| CN103574088A (en) * | 2012-08-09 | 2014-02-12 | 科普蓝(上海)阀门工业有限公司 | Ball valve |
| CN104214361A (en) * | 2013-05-30 | 2014-12-17 | 上海纽京工业设备有限公司 | Hydrogen floating metal sealing ball valve |
| CN105020407A (en) * | 2015-07-10 | 2015-11-04 | 江西维元科技有限公司 | Ash lock valve sealing structure and realization method thereof |
-
2011
- 2011-09-01 CN CN2011203312806U patent/CN202195103U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574088A (en) * | 2012-08-09 | 2014-02-12 | 科普蓝(上海)阀门工业有限公司 | Ball valve |
| CN102788169A (en) * | 2012-08-30 | 2012-11-21 | 科普蓝(上海)阀门工业有限公司 | Integral-valve seat type ball valve |
| CN103090181A (en) * | 2013-02-04 | 2013-05-08 | 连云港远洋流体装卸设备有限公司 | Ship-use low-temperature fluid loading and unloading device |
| CN103090181B (en) * | 2013-02-04 | 2015-04-22 | 连云港远洋流体装卸设备有限公司 | Ship-use low-temperature fluid loading and unloading device |
| CN104214361A (en) * | 2013-05-30 | 2014-12-17 | 上海纽京工业设备有限公司 | Hydrogen floating metal sealing ball valve |
| CN105020407A (en) * | 2015-07-10 | 2015-11-04 | 江西维元科技有限公司 | Ash lock valve sealing structure and realization method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20180901 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |