CN202708178U - Fire proof ball valve - Google Patents
Fire proof ball valve Download PDFInfo
- Publication number
- CN202708178U CN202708178U CN 201220347893 CN201220347893U CN202708178U CN 202708178 U CN202708178 U CN 202708178U CN 201220347893 CN201220347893 CN 201220347893 CN 201220347893 U CN201220347893 U CN 201220347893U CN 202708178 U CN202708178 U CN 202708178U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- ball valve
- ring seals
- graphite block
- 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
Images
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model discloses a fire proof ball valve which comprises a valve body, a valve seat and a ball body. A spring and a first O-shaped seal ring are arranged between the valve body and the valve seat, an insertion groove is opened in the valve seat, an insertion piece is arranged in the insertion groove, a graphite block is arranged on the valve seat on the inner side of the first O-shaped seal ring, and a second O-shaped seal ring is arranged between the valve seat and the valve body. According to the fire proof ball valve, the graphite block is arranged on the valve seat on the inner side of the first O-shaped seal ring, and the second O-shaped seal ring is arranged on the valve seat close to the inner side of the graphite block, so that usage demands of the ball valve in different situations can be met, and the ball valve can proof fire.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of fire-proof ball valve.
Background technique
One of widely used valve of ball valve, its working principle is the same with stopcock, all is to make valve opening and closing by rotary spool, but lighter than stopcock switch, relative volume is little, can make big-diameter ball valve.Ball valve sealing is reliable, and is simple in structure, easy to maintenance, and sealing surface and the spheroid closed state of being everlasting is difficult for by the medium erosion, thereby is widely used in industries such as oil, chemical industry, metallurgy.
The spheroid 3 that existing ball valve generally comprises valve body 1, valve seat 2 and seals, be provided with spring 4 and O-ring seals 5 between valve body 1 and the valve seat 2, offer slot on the valve seat, be provided with a nonmetallic plug-in unit 6 in the slot, the spheroid of ball valve is fixed, do not produce movement behind the pressurized, after valve seat is subjected to hydrodynamic pressure, produce mobile, so that plug-in unit can be pressed on the spheroid, to guarantee sealing, on valve seat, also be provided with a graphite block 7, be used for fire prevention.Ball valve generally comprises single piston effect and double-piston effect ball valve, shown in Fig. 1,2, single piston effect only has inlet seal or exit seal, the double-piston effect is the inlet-outlet bidirectional sealing, necessarily also need to be with safe pressure relief device, because single piston effect ball valve is fully different with the valve seat construction of double-piston effect ball valve, if therefore will be when different applications, different ball valves certainly will be needed, cost will be increased like this.
Summary of the invention
The utility model purpose provides a kind of fire-proof ball valve, by the improvement to structure, so that ball valve can satisfy the use needs of different occasions, and can prevent fires.
The technical solution of the utility model is: a kind of fire-proof ball valve, comprise valve body, valve seat and spheroid, described valve body and valve base chamber are provided with spring and the first O-ring seals, offer slot on the described valve seat, be provided with plug-in unit in the described slot, be positioned at described the first O-ring seals inboard on the described valve seat and be provided with graphite block, also be provided with the second O-ring seals on the described valve seat and between described valve body.
Further technological scheme, described the second O-ring seals are arranged at nearly described graphite block inboard on the described valve seat.
In the technique scheme, this ball valve is made of valve body, valve seat and spheroid, and valve body and valve base chamber arrange spring and the first O-ring seals, offer slot on the valve seat, are provided with nonmetallic plug-in unit in the slot, and nonmetal plug-in unit contacts with spheroid realizes sealing.The utility model ball valve is by arranging graphite block in the first O-ring seals inboard, the structure that had so both kept double-piston effect ball valve, also can prevent fires, and can be provided with the second O-ring seals by the place, inboard of nearly graphite block on valve seat, so just can be used as single piston effect ball valve uses, the second O-ring seals is not set, then can continues to use as double-piston effect ball valve.
The utility model has the advantages that:
1. the utility model arranges graphite block by the first O-ring seals inboard on valve seat, and nearly graphite block inboard arranges the second O-ring seals on valve seat, so that both having can be used as double-piston effect ball valve, used ball valve, also can be used as single piston effect ball valve uses, satisfy different user demands, and had fire-proof function;
2. the utility model is simple in structure, and is easy to use, and is easy to realize, is fit to promote the use of.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is single piston effect ball-valve structure schematic diagram in the prior art;
Fig. 2 is double-piston effect ball-valve structure schematic diagram in the prior art;
Fig. 3 is the utility model embodiment one structural representation.
Wherein: 1, valve body; 2, valve seat; 3, spheroid; 4, spring; 5, O-ring seals; 6, plug-in unit; 7, graphite block; 8, valve body; 9, valve seat; 10, spheroid; 11, spring; 12, the first O-ring seals; 13, plug-in unit; 14, graphite block; 15, the second O-ring seals.
Embodiment
Embodiment one: referring to shown in Figure 3, a kind of fire-proof ball valve, comprise valve body 8, valve seat 9 and spheroid 10,9 of described valve body 8 and valve seats are provided with spring 11 and the first O-ring seals 12, offer slot on the described valve seat 9, be provided with plug-in unit 13 in the described slot, be positioned at described the first O-ring seals 12 inboards on the described valve seat 9 and be provided with graphite block 14, on the described valve seat 9 and 8 of described valve bodies also be provided with the second O-ring seals 15, described the second O-ring seals 15 is arranged at nearly described graphite block 14 inboards on the described valve seat 9.
Ball valve in use, inboard at the first O-ring seals arranges graphite block, ball valve namely can be used as the use of double-piston effect ball valve like this, when the place, inboard of nearly graphite block on valve seat arranges the second O-ring seals, ball valve just can be used as single piston effect ball valve and uses, thereby satisfies different use needs.Because the cross section of graphite block generally is 3 * 3,4 * 4,5 * 5, so change of the present utility model is very convenient.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (2)
1. fire-proof ball valve, comprise valve body (8), valve seat (9) and spheroid (10), be provided with spring (11) and the first O-ring seals (12) between described valve body (8) and valve seat (9), described valve seat offers slot on (9), be provided with plug-in unit (13) in the described slot, it is characterized in that: be positioned at described the first O-ring seals (12) inboard on the described valve seat (9) and be provided with graphite block (14), described valve seat (9) upward and between described valve body (8) also is provided with the second O-ring seals (15).
2. a kind of fire-proof ball valve according to claim 1 is characterized in that: described the second O-ring seals (15) is arranged at upper nearly described graphite block (14) inboard of described valve seat (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347893 CN202708178U (en) | 2012-07-18 | 2012-07-18 | Fire proof ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347893 CN202708178U (en) | 2012-07-18 | 2012-07-18 | Fire proof ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708178U true CN202708178U (en) | 2013-01-30 |
Family
ID=47588484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220347893 Expired - Fee Related CN202708178U (en) | 2012-07-18 | 2012-07-18 | Fire proof ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748496A (en) * | 2012-07-18 | 2012-10-24 | 嘉士凯（苏州）阀门配件有限公司 | Fireproofing ball valve |
-
2012
- 2012-07-18 CN CN 201220347893 patent/CN202708178U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748496A (en) * | 2012-07-18 | 2012-10-24 | 嘉士凯（苏州）阀门配件有限公司 | Fireproofing ball valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MY152788A (en) | Control valve trim and seal | |
| WO2011066942A3 (en) | Hydraulic directional solenoid valve and door closer having a hydraulic directional solenoid valve | |
| GB2536373A (en) | Variable diameter piston assembly for safety valve | |
| GB201009242D0 (en) | Valve assembly | |
| CN202708178U (en) | Fire proof ball valve | |
| CN103410988A (en) | Military extra-high-pressure oxygen valve | |
| MX2010002987A (en) | Shear open valve. | |
| CN102748496A (en) | Fireproofing ball valve | |
| CN201310633Y (en) | Two-way sealing butterfly valve | |
| CN204083343U (en) | A kind of drilling rod stopcock | |
| CN202708177U (en) | Impurity proof ball vale | |
| CN103423475A (en) | Flat gate valve sealing structure | |
| CN202708170U (en) | Ball valve for high temperature and high voltage | |
| CN202812274U (en) | Fixed ball valve | |
| CN102758932A (en) | High-temperature-resistant ball valve | |
| CN202708168U (en) | Ball valve | |
| CN202812275U (en) | High-strength ball valve | |
| CN202708180U (en) | Heat resisting ball valve | |
| CN202082446U (en) | Two-circuit safety valve | |
| CN201705957U (en) | Bidirectional sealing butterfly valve | |
| CN102767633A (en) | Impurity prevention ball valve | |
| CN101749438A (en) | Hard-seal butterfly valve | |
| CN102758933A (en) | Ball valve for high temperature and high pressure | |
| CN102758929A (en) | Fixation ball valve | |
| CN102628524A (en) | Valve stem sealing device |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20170718 |