CN2292946Y - Special gas valve - Google Patents
Special gas valve Download PDFInfo
- Publication number
- CN2292946Y CN2292946Y CN 96237610 CN96237610U CN2292946Y CN 2292946 Y CN2292946 Y CN 2292946Y CN 96237610 CN96237610 CN 96237610 CN 96237610 U CN96237610 U CN 96237610U CN 2292946 Y CN2292946 Y CN 2292946Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve core
- spool
- valve body
- utility
- 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
Links
Landscapes
- Sliding Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The utility model relates to an improved plug valve, which comprises a T-shaped valve body, a cone valve core which is arranged on the middle bottom part of the valve body and is provided with a radial through hole, a valve core rod, and a handle which is arranged on the valve core rod. The utility model is characterized in that the upper end surface of the ceramic valve core is provided with a spring which is sheathed with a pressing block that is provided with a central through hole. The left and the right sides of the valve core are provided with ceramic circular ring bodies. The contact surfaces of the valve core, the circular ring bodies, and the valve body are very smooth, compact, and air-tight. The utility model has the protruding advantages of favorable tightness, favorable abrasive resistance, corrosion resistance, reduced maintenance load, and long service life.
Description
The utility model relates to a kind of coal gas special valve, belongs to valve technology field.
The stopcock that present coal gas system uses is adjusted spool gap in the spool lower end surface with nut, screw rod because unreasonable structure is not proper with material, and is just perishable behind the use certain hour, and wearing and tearing, gas leakage cause security incident.
The purpose of this utility model provides a kind of coal gas special valve to solve the problem that existing gas valve is easy to wear, burn into leaks gas, the life-span is short.
The technical solution of the utility model is, the coal gas special valve comprises threeway shape valve body 1 and is loaded on cone spool 3, the valve core rod 5 of valve body central bottom band radial direction through hole and is loaded on handle 7 on the valve core rod, spring 4 is equipped with in the upper-end surface that it is characterized in that ceramic valve core 3, be set with the compact heap 6 of central through bore on it again, ceramic cirque body 2 is equipped with in the spool left and right side, and the mutual surface of contact of spool 3, cirque body 2, valve body 1 is very smooth, tightly air tight.
Valve core rod 5 is equipped with small sealing ring 10 with the through hole position of compact heap 6.Between compact heap and valve body upper-end surface big sealing ring 11 is housed.
Spool 3, cirque body 2 or make of glass, stainless steel.
Accompanying drawing is the utility model vertical profile TV structure schematic representation
Valve is in closed condition, presses half-twist counterclockwise when handle, and the through hole of spool 3 communicates with the hole of garden ring body 2, and coal gas can pass through from pipeline.Otherwise when handle half-twist in the direction of the clock, spool 3 is in original position, and valve closes dead, and coal gas must not circulate.Sealing of the present utility model depends primarily on spool, the machining accuracy and the wear resistance of garden ring body, valve body surface of contact.
Outstanding advantage of the present utility model is 1, good seal performance.Spool face degree of finish after grinding can reach more than 9, does not add seal gease valve one minute no leakage phenomenon of voltage stabilizing under 1200Kpa pressure.2, wear-resisting property is good, reaches working life more than 30,000 times, improves more than three times than copper core material life of valve.3, ceramic glass and stainless steel material corrosion resistance are strong, have alleviated maintenance load greatly.4, economic performance is good.A valve can push up three copper core valves and use, and cutting down expenses reaches more than 50%.
Claims (3)
1, a kind of coal gas special valve, comprise threeway shape valve body (1) and be loaded on cone spool (3), the valve core rod (5) of valve body central bottom band radial direction through hole and be loaded on handle (7) on the valve core rod, spring (4) is equipped with in the upper-end surface that it is characterized in that ceramic valve core (3), be set with the compact heap (6) of central through bore on it again, ceramic cirque body (2) is equipped with in the spool left and right side, and the mutual surface of contact of spool (3), cirque body (2), valve body (1) is very smooth, tight, air tight.
2, coal gas special valve according to claim 1 is characterized in that small sealing ring (10) is equipped with at the through hole position of valve core rod (5) and compact heap (6), and big sealing ring (11) is housed between compact heap and valve body upper-end surface.
3, coal gas special valve according to claim 1 is characterized in that spool (3), cirque body (2) or makes of glass, stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96237610 CN2292946Y (en) | 1996-10-09 | 1996-10-09 | Special gas valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96237610 CN2292946Y (en) | 1996-10-09 | 1996-10-09 | Special gas valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2292946Y true CN2292946Y (en) | 1998-09-30 |
Family
ID=33913144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96237610 Expired - Fee Related CN2292946Y (en) | 1996-10-09 | 1996-10-09 | Special gas valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2292946Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195940A (en) * | 2013-04-08 | 2013-07-10 | 步志俊 | Ceramic rotary cone valve |
-
1996
- 1996-10-09 CN CN 96237610 patent/CN2292946Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195940A (en) * | 2013-04-08 | 2013-07-10 | 步志俊 | Ceramic rotary cone valve |
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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 |