CN201902637U - Special ball valve flange structure for liquefied gas and petroleum gas - Google Patents
Special ball valve flange structure for liquefied gas and petroleum gas Download PDFInfo
- Publication number
- CN201902637U CN201902637U CN2010206386667U CN201020638666U CN201902637U CN 201902637 U CN201902637 U CN 201902637U CN 2010206386667 U CN2010206386667 U CN 2010206386667U CN 201020638666 U CN201020638666 U CN 201020638666U CN 201902637 U CN201902637 U CN 201902637U
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- Prior art keywords
- valve body
- flange
- ball valve
- gasket
- petroleum gas
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Abstract
The utility model discloses a flange structure, and particularly relates to a special ball valve flange structure for liquefied gas and petroleum gas, which comprises a main valve body, an auxiliary valve body and a gasket. Flange concave seam allowance of the main valve body and a flange boss of the auxiliary valve body form a circular groove, the gasket is disposed in the circular groove, and the section of the circular groove is a rectangular structure, a circular structure or a similar circular structure. As the gasket between the main valve body and the auxiliary valve body is disposed in the circular groove, the special ball valve flange structure for liquefied gas and petroleum gas solves the problem that a gasket plastically deforms due to influence of temperature and pressure of transmission media so as to fail in the sealing function, and guarantees transmission safety. The concave seam allowance is in metal contact with a plane of the boss, thereby guaranteeing integral length of the ball valve structure to meet standard requirement during installation, guaranteeing sealing effect in long-term usage, prolonging the service lives of the valve bodies and further reducing maintenance cost of pipelines.
Description
One, technical field:
The utility model is a kind of flange arrangement, the special-purpose ball valve flange arrangement of particularly a kind of liquid gas petroleum gas.
Two, background technique:
Gate valve is a kind of common liquefied gas conveyance conduit accessory, existing gate valve flange arrangement is when transportation of liquefied gas petroleum gas, because the effect of transmission medium pressure and temperature, the flange connections sealing gasket of the main valve body of valve body and auxiliary valve body produces plastic deformation, endoporus inwardly extends, of long duration, lose seal action, cause valve body to occur leaking.
Three, summary of the invention:
The purpose of this utility model is to overcome the deficiencies in the prior art part, provides a kind of sealing durable, the special-purpose ball valve flange arrangement of liquid gas petroleum gas simple in structure.
Technological scheme:
The special-purpose ball valve flange arrangement of a kind of liquid gas petroleum gas comprises main valve body, auxiliary valve body, and sealing gasket, the flange boss of recessed seam of the flange of described main valve body and auxiliary valve body forms annular groove, and sealing gasket is arranged in the annular groove.
Described annular groove section is a rectangular configuration.
Described annular groove section is round structure or sub-circular structure.
The beneficial effects of the utility model:
1, the special-purpose ball valve flange arrangement of liquid gas petroleum gas of the present utility model, sealing gasket is arranged among the annular groove between main valve body and the auxiliary valve body, solve sealing gasket and influenced by the transmission medium temperature, pressure to cause plastic deformation, and then lost the problem of seal action, guaranteed transmission safety;
2, the special-purpose ball valve flange arrangement of liquid gas petroleum gas of the present utility model, the plane of recessed seam and boss is a Metal Contact, during installation, the entire length that guarantees ball-valve structure meets standard-required, guaranteed sealing effect in the long-term use, prolong the working life of valve body, and then reduced the maintenance cost of pipeline.
Four, description of drawings:
Fig. 1 is one of existing ball valve flange arrangement schematic representation.
Fig. 2 is one of the special-purpose ball valve flange arrangement of the utility model liquid gas petroleum gas schematic representation.
Fig. 3 is the special-purpose ball valve flange arrangement of a utility model liquid gas petroleum gas groove structure schematic representation.
Number in the figure 1-1 is a main valve body, and label 1-2 is an auxiliary valve body, and label 1-3 is a sealing gasket;
Number in the figure 2-1 is a main valve body, and label 2-2 is an auxiliary valve body, and label 2-3 is a sealing gasket;
Number in the figure 3-4 is recessed seam, and label 3-5 is a boss, and label 3-6 is an annular groove.
Five, embodiment:
Embodiment one: referring to Fig. 2, and Fig. 3, the special-purpose ball valve flange arrangement of a kind of liquid gas petroleum gas, comprise main valve body 2-1, auxiliary valve body 2-2, sealing gasket 2-3, the flange boss 3-5 of recessed seam 3-4 of the flange of main valve body and auxiliary valve body forms annular groove 3-6, and sealing gasket is arranged in the annular groove;
The annular groove that recessed seam and boss form is a rectangular configuration.
Embodiment two: referring to Fig. 2, and Fig. 3, implementation methods is identical with embodiment one substantially, and something in common repeats no more, and different places are that the annular groove section is a round structure.
Claims (3)
1. the special-purpose ball valve flange arrangement of liquid gas petroleum gas comprises main valve body, auxiliary valve body, and sealing gasket is characterized in that: the flange boss of recessed seam of the flange of described main valve body and auxiliary valve body forms annular groove, and sealing gasket is arranged in the annular groove.
2. the special-purpose ball valve flange arrangement of liquid gas petroleum gas according to claim 1, it is characterized in that: described annular groove section is a rectangular configuration.
3. the special-purpose ball valve flange arrangement of liquid gas petroleum gas according to claim 1, it is characterized in that: described annular groove section is round structure or sub-circular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206386667U CN201902637U (en) | 2010-12-02 | 2010-12-02 | Special ball valve flange structure for liquefied gas and petroleum gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206386667U CN201902637U (en) | 2010-12-02 | 2010-12-02 | Special ball valve flange structure for liquefied gas and petroleum gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201902637U true CN201902637U (en) | 2011-07-20 |
Family
ID=44273231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206386667U Expired - Fee Related CN201902637U (en) | 2010-12-02 | 2010-12-02 | Special ball valve flange structure for liquefied gas and petroleum gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201902637U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019718A (en) * | 2018-08-31 | 2018-12-18 | 刘钰婷 | A kind of slow pressure water purification connecting flange of fresh-water generator |
-
2010
- 2010-12-02 CN CN2010206386667U patent/CN201902637U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019718A (en) * | 2018-08-31 | 2018-12-18 | 刘钰婷 | A kind of slow pressure water purification connecting flange of fresh-water generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20131202 |