CN202646762U - Small-caliber high-temperature wear-resistant ball valve - Google Patents
Small-caliber high-temperature wear-resistant ball valve Download PDFInfo
- Publication number
- CN202646762U CN202646762U CN 201220334077 CN201220334077U CN202646762U CN 202646762 U CN202646762 U CN 202646762U CN 201220334077 CN201220334077 CN 201220334077 CN 201220334077 U CN201220334077 U CN 201220334077U CN 202646762 U CN202646762 U CN 202646762U
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- valve
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- ball
- valve rod
- valve body
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- Expired - Fee Related
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Abstract
The utility model provides a small-caliber high-temperature wear-resistant ball valve. The ball valve comprises a valve body and a valve cover, wherein a valve body sealing ring is arranged between the valve body and the valve cover; a valve seat group is arranged in the valve body; a ball body is arranged between the valve seat group and the valve cover; the valve seat group consists of a valve seat spring and a flotation valve seat; the ball body is connected with a valve rod; the other end of the valve rod is connected with a handle; a shaft shoulder is arranged on the valve rod; a tray is arranged between the upper end surface of the shaft shoulder and the handle; the tray is fixedly connected with the valve body; a filler is filled between the valve rod and the valve body and is fixedly sealed by a filler gland; a bearing is arranged at the shaft shoulder on the valve rod; and the valve rod, the filler gland and the valve body sealing ring are subjected to liquid carbonitriding process salt bath compound treatment. According to the ball valve, the leakage can be eliminated, the ball valve has self-tightness, the sealing property of the ball valve is reliable, the working efficiency of a system is improved, and the system maintenance is safe.
Description
Technical field
The utility model relates to a kind of valve, particularly relates to a kind of small-bore high-temperature abrasion-resistant ball valve.
Background technique
High temperature, high pressure, high circulation, thermal shock and the fired power generating unit under the harsh working condition such as wash away and the various systems such as recirculation combined plant system, petroleum refining, chemical industry, metallurgy in pipeline in, seal ball-valve be commonly used to connection, open, close seal arrangement.Since high temperature, high pressure, high circulation, thermal shock and wash away and medium in contain under the harsh operating mode such as a large amount of hydrogen and work, so just strict especially to the technical requirements of such ball-cock device.The ball valve that uses in traditional High Temperature High Pressure system very easily is subject to abominable situation impact, such as the leakage of improper easier initiation sealing place of fruit structure.Under some abominable operating conditions, inner open-shut device can occur blow out and the valve rod accident such as scurry out, thereby cause equipment and operator's damage and harm.The design code of ball valve clear valve should have the requirement that prevents that valve rod from ejecting; in the prior art for preventing that valve rod from scurrying out; the tray structures that adopt more; in the valve opening and closing process; can cause the wearing and tearing of pallet because of the rotation of valve rod; and then cause the generation of accident such as scurry out of poorly sealed and valve rod; for avoiding the generation of this phenomenon; can adopt packing ring with the wearing and tearing of protection pallet at valve rod and pallet cooperation place; although packing ring adopts heat treatment rear surface wear resistance relatively good; but in long-term using process, serious wear also is difficult to the generation of Accident prevention.
The model utility content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of small-bore high-temperature abrasion-resistant ball valve, and it can be stopped a leak, and ball valve is had from close property, guarantees that the sealing of ball valve is more reliable, can improve the working efficiency of system, makes system maintenance safer.
The technological scheme that its technical problem that solves the utility model adopts is a kind of small-bore high-temperature abrasion-resistant ball valve, comprise valve body, valve gap, be provided with the valve seal ring between valve body and the valve gap, the valve seat group is set in the valve body, between valve seat group and the valve gap spheroid is set, the valve seat group is comprised of seating spring and floating valve seat, connect a valve rod on the spheroid, the valve rod the other end connects one handle, valve rod is provided with the shaft shoulder, one pallet is set between shaft shoulder upper-end surface and the handle, pallet is fixedly connected on valve body, fills filler between valve rod and the valve body, and filler is by the Gland fixing seal, shaft shoulder place arranges bearing on the valve rod, valve rod, Gland and valve seal ring all pass through QPQ salt bath compounding.
The beneficial effects of the utility model are as follows:
1, valve rod shaft shoulder place arranges bearing, and wear resistance is good, can effectively prevent the scurry out generation of accident of the leakage that causes because of wearing and tearing and valve rod, the Security that has improved valve.
2, valve rod, Gland and valve seal ring all pass through QPQ salt bath compounding, strengthen its wear resistance, corrosion resistance, high temperature, high pressure, high circulation, thermal shock and wash away and medium in contain under the harsh operating modes such as a large amount of hydrogen, guaranteed the zero leakage of valve.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the plan view of present embodiment, is sectional view;
Fig. 2 is the plan view of present embodiment.
Among Fig. 1,2: 1. valve body; 2. seating spring; 3. floating valve seat; 4. spheroid; 5. valve seal ring; 6. nut; 7. double-screw bolt; 8. valve gap; 9. filler; 10. Gland; 11. dish spring; 12. nut; 13. double-screw bolt; 14. column; 15. screw; 16. bearing; 17. anti-attrition pad; 18. pad; 19. nut; 20. handle; 21. pallet; 22. valve rod.
Embodiment
Such as Fig. 1, shown in 2, a kind of small-bore high-temperature abrasion-resistant ball valve, comprise valve body 1, valve gap 8, be provided with valve seal ring 5 between valve body 1 and the valve gap 8, valve gap 8 is fixing by cooperation and valve body 1 sealing of double-screw bolt 7 and nut 6, the valve body 1 interior valve seat group that arranges, between valve seat group and the valve gap 8 spheroid 4 is set, the valve seat group is comprised of seating spring 2 and floating valve seat 3, connect a valve rod 22 on the spheroid 4, valve rod 22 the other ends are fixedly connected with one handle 20 by pad 18 and nut 19, valve rod 22 is provided with the shaft shoulder, one pallet 21 is installed between shaft shoulder upper-end surface and the handle 20, be connected with column 14 between pallet 21 and the valve body 1, screw 15 is installed in that column 14 is interior to be fixedly connected with pallet 21 with valve body 1, fill filler 9 between valve rod 22 and the valve body 1, filler 9 is by Gland 10 fixing seals, Gland 10 is by dish spring 11, being fixed on valve body 1 between double-screw bolt 13 and the nut 12, shaft shoulder place arranges bearing 16 on the valve rod 22, valve rod 22, Gland 10 and valve seal ring 5 all pass through QPQ salt bath compounding, to strengthen its wear resistance, corrosion resistance.
During work, 22 rotations of handle 20 actuate valve stem can realize by spinning ball 4 keying of valve.
Claims (1)
1. small-bore high-temperature abrasion-resistant ball valve, comprise valve body, valve gap, be provided with the valve seal ring between valve body and the valve gap, the valve seat group is set in the valve body, between valve seat group and the valve gap spheroid is set, described valve seat group is comprised of seating spring and floating valve seat, connect a valve rod on the described spheroid, the valve rod the other end connects one handle, described valve rod is provided with the shaft shoulder, one pallet is set between shaft shoulder upper-end surface and the handle, described pallet is fixedly connected on valve body, fills filler between described valve rod and the valve body, and filler is by the Gland fixing seal, it is characterized in that: shaft shoulder place arranges bearing on the described valve rod, described valve rod, Gland and valve seal ring all pass through QPQ salt bath compounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334077 CN202646762U (en) | 2012-07-11 | 2012-07-11 | Small-caliber high-temperature wear-resistant ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334077 CN202646762U (en) | 2012-07-11 | 2012-07-11 | Small-caliber high-temperature wear-resistant ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646762U true CN202646762U (en) | 2013-01-02 |
Family
ID=47415871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220334077 Expired - Fee Related CN202646762U (en) | 2012-07-11 | 2012-07-11 | Small-caliber high-temperature wear-resistant ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646762U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629386A (en) * | 2012-08-27 | 2014-03-12 | 江苏神通阀门股份有限公司 | Small-caliber high-temperature wear-resistant ball valve |
-
2012
- 2012-07-11 CN CN 201220334077 patent/CN202646762U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629386A (en) * | 2012-08-27 | 2014-03-12 | 江苏神通阀门股份有限公司 | Small-caliber high-temperature wear-resistant ball valve |
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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: 20130102 Termination date: 20200711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |