CN201100444Y - Ball valve with metal hard sealing body valve base - Google Patents
Ball valve with metal hard sealing body valve base Download PDFInfo
- Publication number
- CN201100444Y CN201100444Y CNU2007200467067U CN200720046706U CN201100444Y CN 201100444 Y CN201100444 Y CN 201100444Y CN U2007200467067 U CNU2007200467067 U CN U2007200467067U CN 200720046706 U CN200720046706 U CN 200720046706U CN 201100444 Y CN201100444 Y CN 201100444Y
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- Prior art keywords
- valve
- ball valve
- ball
- pedestal
- sealing
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- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of a valve, in particular to a metal stiff sealing body valve pedestal ball valve, comprising a main body, a butterfly spring, a valve pedestal, a sphere, a gasket, a bolt nut, a left valve body, a valve rod, a filling gland and a spanner. The metal stiff sealing body valve pedestal ball valve is characterized in that the ball valve makes an arc sealing surface which is completely inosculated with the sphere on the left valve body; the sealing surface is cut and processed through a machine tool and abraded through special equipment; and simultaneously tungsten carbide is sprayed on the arc surface through super flame, thereby enhancing the intensity of abrasion resistance, temperature resistance and corrosion resistance. The arc surface on the left valve body is a metal stiff sealing body valve pedestal, which not only replaces the original ball valve downstream valve pedestal, but also avoids the ball valve leakage because the original valve pedestal and the sealing ring are extruded and deformed again and again, or some medium which has stronger corrosion causes the ball valve to dissolve and expand.
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 extensively applies to chemical industry, oil, the mine, electric power, the energy, building, in the industrial processes such as environmental protection, be a kind of general engineering goods, it is installed on the various pipelines, be used to control the flow of pipeline medium, flow to and pressure, traditional ball valve in use, when the cambered surface of valve ball sphere that does not have penetration hole and valve seat fits like a glove, ball valve is realized closing, the seal degree of ball valve, the seal degree that depends on sphere and valve seat cambered surface, known valve seat is made up of the valve seat of metal manufacturing and the seal ring of nonmetal manufacturing, because the unlatching repeatedly of ball valve causes the seal ring of nonmetal manufacturing to be subjected to extrusion-deformation repeatedly, or because the stronger special media of some corrosivity makes its swelling, and and produce microgap between metal seat valve and cause leakage, strengthened the keying operational torque, cause ball valve to use.
Summary of the invention
In order to overcome between existing the ball valve metal seat valve and nonmetal seal ring, since ball valve is in use opened repeatedly or pipeline in the nonmetal seal ring that causes when carrying corrosivity and this deficiency of microgap between the metal seat valve than strong medium, the purpose of this utility model provides easily metal hard-sealing body valve seat ball valve reliably of a kind of simple in structure, high-performance sealing, operation.
The technical solution of the utility model: metal hard-sealing body valve seat ball valve described in the utility model, comprise main body, belleville spring, valve seat, spheroid, pad, bolt and nut, left valve barrel, valve rod, Gland, spanner, it is characterized in that on the left valve barrel of described ball valve, making the arc sealing surface that fits like a glove with spheroid, the downstream metal seat valve and the nonmetal seal ring that replace conventional ball valve to install herein, the thrust of belleville spring is down auxilliary behind right valve barrel place upstream valve seat, the arc sealing surface that forms valve ball and left valve barrel directly fits like a glove, the sealing surface that fits like a glove with spheroid on the described left valve barrel is, cutting by lathe, grind through special device, in left valve barrel and the identical cambered surface that partly forms of valve ball, and in cambered surface by super flame spraying Tungsten carbite, wear-resisting with the matching surface hardness and the increase that improve cambered surface, heatproof, corrosion resistant intensity.
The beneficial effects of the utility model are: because metal hard-sealing body valve seat ball valve has been made the sealing surface that fits like a glove with valve ball at left valve barrel, downstream valve seat and seal ring that conventional ball valve is placed at the left valve barrel place have been replaced, by directly fitting like a glove of spheroid and left valve barrel, constituted the sealing of ball valve, owing to cancelled the downstream valve seat and the nonmetallic seal ring at left valve barrel place, ball valve in the course of the work, directly produce sealing by left valve barrel and ball, thereby avoided because of ball valve open repeatedly or pipeline in the downstream valve seat that causes when carrying the stronger medium of corrosion and the swelling set of seal ring, the ball valve of generation is little lets out interior leakage.Because of having cancelled downstream valve seat and nonmetal seal ring in the ball valve, guaranteed that spheroid closely contacts with the direct of left valve barrel, improved the sealability of ball valve, improved manufacturing efficiency, easy for operation, prolonged working life.
Description of drawings
Accompanying drawing: the 1st, structure sectional view of the present utility model;
The 2nd, spheroid and the left valve barrel view that coincide;
The 3rd, the cambered surface portion view of left valve barrel.
In the drawings: 1 main body, 2 belleville springs, 3 valve seats, 4 spheroids, 5 pads, 6 bolt and nuts, 7 left valve barrels, 8 valve rods, 9 Glands, 10 wrench.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model:
As shown in the figure, metal hard-sealing body valve seat ball valve of the present utility model, comprise main body 1, belleville spring 2, valve seat 3, spheroid 4, pad 5, bolt and nut 6, left valve barrel 7, valve rod 8, Gland 9, wrench 10, when ball valve is opening state, the port hole of spheroid 4 is consistent with the port hole of valve body, foursquare side's tenon is arranged at the top of valve rod 8, rectangular side's tenon is arranged at the bottom, head has the wrench 10 of square side's mortise to be enclosed within valve rod 8 tops, rectangular side, valve rod 8 bottom tenon is inserted in the square tongue-and-groove of spheroid 4, it is characterized in that described ball valve, when clockwise rotating wrench 10 when vertical with the valve flowing channel line, wrench drives valve rod 8 and spheroid 4 simultaneously, half-twist, this moment, the port hole of spheroid was vertical with the runner of valve, spheroid 4 coincide with the cambered surface on the left valve barrel 7, pressure at medium itself, under the effect of the pretightening force of belleville spring 2, the arc sealing surface that forms valve ball and the left valve barrel sealing that directly fits like a glove, medium is dammed, valve closing, because the utility model has adopted above-mentioned technology, when ball valve is closed, the identical part of left valve barrel 7 and spheroid 4, formed the hard seal valve seat of bulk metal,, thereby avoided traditional valve seat and the microgap between seal ring and the valve body and leak in the ball valve that causes because of cambered surface and the left valve barrel that plays the valve seat effect is one, sealability reduces, the drawback that working life is short, can replace the existing ball valve that uses traditional valve seat technology fully at the sealing reliability and the working life of having improved ball valve greatly.
Claims (1)
1. metal hard-sealing body valve seat ball valve, comprise main body, belleville spring, valve seat, spheroid, pad, bolt and nut, left valve barrel, valve rod, Gland, spanner, it is characterized in that the left valve barrel in the ball valve, contacting with spheroid in ball valve partly is cambered surface, and direct and spheroid coincide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200467067U CN201100444Y (en) | 2007-09-15 | 2007-09-15 | Ball valve with metal hard sealing body valve base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200467067U CN201100444Y (en) | 2007-09-15 | 2007-09-15 | Ball valve with metal hard sealing body valve base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201100444Y true CN201100444Y (en) | 2008-08-13 |
Family
ID=39936979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200467067U Expired - Fee Related CN201100444Y (en) | 2007-09-15 | 2007-09-15 | Ball valve with metal hard sealing body valve base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201100444Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532855A (en) * | 2009-04-24 | 2009-09-16 | 天津市万禧仪器仪表有限公司 | Wedge shape pore plate flow measurement device with whole tungsten carbide material |
| CN102155552A (en) * | 2011-04-21 | 2011-08-17 | 苏州市燃气设备阀门制造有限公司 | Low torsion moment ball valve for fuel gas vertical pipe |
-
2007
- 2007-09-15 CN CNU2007200467067U patent/CN201100444Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532855A (en) * | 2009-04-24 | 2009-09-16 | 天津市万禧仪器仪表有限公司 | Wedge shape pore plate flow measurement device with whole tungsten carbide material |
| CN101532855B (en) * | 2009-04-24 | 2013-08-21 | 天津市万禧仪器仪表有限公司 | Wedge shape pore plate flow measurement device with whole tungsten carbide material |
| CN102155552A (en) * | 2011-04-21 | 2011-08-17 | 苏州市燃气设备阀门制造有限公司 | Low torsion moment ball valve for fuel gas vertical pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090213 Address after: No. 1 Huang Lu, Funing Economic Development Zone, Jiangsu, China: 224400 Patentee after: Jiangsu Jiangheng Valve Industry Co., Ltd. Address before: Funing County, Jiangsu Province, town of Fu River Village five group, zip code: 224400 Patentee before: Wu Wanjiang |
|
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU JIANGHENG VALVE CO., LTD. Free format text: FORMER OWNER: WU WANJIANG Effective date: 20090213 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080813 Termination date: 20091015 |