CN2793473Y - Hard-sealing spherical valve for black water - Google Patents
Hard-sealing spherical valve for black water Download PDFInfo
- Publication number
- CN2793473Y CN2793473Y CN 200520040950 CN200520040950U CN2793473Y CN 2793473 Y CN2793473 Y CN 2793473Y CN 200520040950 CN200520040950 CN 200520040950 CN 200520040950 U CN200520040950 U CN 200520040950U CN 2793473 Y CN2793473 Y CN 2793473Y
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- valve
- utility
- black water
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- valve body
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Abstract
The utility model relates to a black water metal hard sealing ball valve which belongs to the technical field of a valve. Black water has the characteristics that the ingredients are complicated, the water black contains a large quantity of solid particles, the black water is easy to scale formation, the chloridion concentration is high, the black water contains H< 2 >S and other acidic materials, and the temperature and the pressure are high. The common metal hard sealing ball valve is difficult to meet the needs. After the utility model is carried out, a scraper-shaped valve seat is used, both ends of a spring of the valve seat are provided with sealing rings, the position on a valve body, which is used for placing valve rod filler, is additionally provided with a dual phase steel sleeve cylinder, so the utility model overcomes the defects of the common metal hard sealing ball valve. The operation performance and the sealing performance can be improved, the service life can be extended and the utility model is improved design which conforms to practical use.
Description
Technical field: belonging to valve technology field, exactly is the Heisui River metal hard-sealing ball valve.
Background technique: can produce the Heisui River of a large amount of High Temperature High Pressure in the gasification engineering, need carry out heat recovery and processing to it.The characteristics in this Heisui River are complicated components, contain a large amount of solid particles, fouling easily, and the chlorine ion concentration height contains H
2S and other acidic materials, High Temperature High Pressure.According to these characteristics, pipeline is generally all selected metal hard-sealing ball valve for use.The sealing of ball valve is to be combined closely by valve seat and spheroid, thereby reaches valve seal.For general fluid, it is simple in structure, and sealing is reliable.But,, just be difficult to satisfy usage requirement for the Heisui River in the gasification engineering.Major defect is: 1 spherome surface is because fouling makes that opening moment sharply increases, and causes operating difficulties; 2 seating spring are because fouling is ineffective; 3 for the austenite valve, puts the position of stem packing on valve body, and it is dense long-pending to form chlorion, thereby causes stress corrosion cracking.4 spheroids, valve base sealing surface hardness are lower, and wear-resisting property is relatively poor.Based on above factor, the ball valve life-span that is used in Heisui River is short.
Summary of the invention: the utility model is the Heisui River metal hard-sealing ball valve that the position that will provide a kind of and effectively remove the ball seal surface scale, stop fluid (Heisui River) to enter seating spring, filler is installed on valve body adds the dual phase steel sleeve.
The technological scheme that the utility model is taked:
Prior art is: the valve rod that is connected with spheroid, and valve rod is closely centered on by filler, places among the valve body, filler is pushed down by the Gland that center hole passes valve rod, compress with hold-down grid again on the Gland, spheroid is pressed on the valve seat, between valve body and the valve seat spring is arranged.The utility model improvements are: the position of filler is installed on valve body, increases by a two-phase steel bushing, as the lining of valve body; Valve seat adopts the scraper form to contact with spheroid; Sealing gasket and seal ring have been set up respectively at the seating spring two ends.
After implementing the utility model, scraper form valve seat can effectively be removed the fouling on ball seal surface, has improved operating characteristics; Seal ring is set up at the seating spring two ends, can stop fluid (Heisui River) to enter seating spring, thereby prevent the seating spring fouling, has improved sealability: increase the dual phase steel sleeve and can prevent that the valve body stress corrosion cracking from destroying, prolonged ball valve working life.
Description of drawings:
Fig. 1 is the utility model sectional structure principle schematic.
Embodiment: existing the utility model is described in further detail in conjunction with the accompanying drawings.The prior art situation is: the valve rod 4 that is connected with spheroid 12, and valve rod 4 is closely centered on by filler 2, places among the valve body 8; Filler 2 is pushed down by the Gland 3 that center hole passes valve rod 4, compresses with hold-down grid 5 again on the Gland 3; Spheroid 12 is pressed on the valve seat 11; Between valve body 8 and the valve seat 11 spring 7 is arranged.Existing improvements are; The position of filler is installed on valve body 8, increases by a two-phase steel bushing 1, as the lining of valve body 8; Valve seat 11 adopts the scraper form to contact with spheroid 12; Sealing gasket 10 and seal ring 6 have been set up respectively at seating spring 7 two ends.
Claims (1)
1, Heisui River metal hard-sealing ball valve comprises the valve rod (4) that is connected with spheroid (12), and valve rod is closely centered on by filler (2), places among the valve body (8); Filler (2) is pushed down by the Gland (3) that center hole passes valve rod, uses hold-down grid (5) to compress on the Gland (3) again; Spheroid (12) is pressed on the valve seat (11): between valve body (8) and the valve seat (11) spring (7) is arranged, it is characterized in that: go up the position that filler (2) is installed at valve body (8), a two-phase steel bushing (1) is arranged, as the lining of valve body (8); Valve body (11) adopts the scraper form to contact with spheroid (12); Sealing gasket (10) and seal ring (6) have been set up respectively at seating spring (7) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520040950 CN2793473Y (en) | 2005-04-19 | 2005-04-19 | Hard-sealing spherical valve for black water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520040950 CN2793473Y (en) | 2005-04-19 | 2005-04-19 | Hard-sealing spherical valve for black water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2793473Y true CN2793473Y (en) | 2006-07-05 |
Family
ID=36820618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520040950 Expired - Fee Related CN2793473Y (en) | 2005-04-19 | 2005-04-19 | Hard-sealing spherical valve for black water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2793473Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915321A (en) * | 2010-08-12 | 2010-12-15 | 太仓优尼泰克精密机械有限公司 | Ball valve |
| CN102359618A (en) * | 2011-11-09 | 2012-02-22 | 浙江超达阀门股份有限公司 | Top entry ball valve |
| CN105318033A (en) * | 2015-10-23 | 2016-02-10 | 浙江贝托阀门有限公司 | Integrated stainless metal seal valve seat structure |
-
2005
- 2005-04-19 CN CN 200520040950 patent/CN2793473Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915321A (en) * | 2010-08-12 | 2010-12-15 | 太仓优尼泰克精密机械有限公司 | Ball valve |
| CN102359618A (en) * | 2011-11-09 | 2012-02-22 | 浙江超达阀门股份有限公司 | Top entry ball valve |
| CN105318033A (en) * | 2015-10-23 | 2016-02-10 | 浙江贝托阀门有限公司 | Integrated stainless metal seal valve seat structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |