CN203309239U - Liquefied petroleum gas safety valve - Google Patents
Liquefied petroleum gas safety valve Download PDFInfo
- Publication number
- CN203309239U CN203309239U CN2013203113040U CN201320311304U CN203309239U CN 203309239 U CN203309239 U CN 203309239U CN 2013203113040 U CN2013203113040 U CN 2013203113040U CN 201320311304 U CN201320311304 U CN 201320311304U CN 203309239 U CN203309239 U CN 203309239U
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- China
- Prior art keywords
- valve
- disc
- backflushing
- seat
- spring
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- 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
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Abstract
The utility model relates to a liquefied petroleum gas safety valve, which mainly solves the problem of complicated structure of the existing safety valve. One end of a valve seat facing a valve cover can be in contact connection with a backflushing disc, a guide sleeve is sheathed on a backflushing disc sleeve, a valve rod is linkage connection with the backflushing disc, and one end in the backflushing disc corresponding to the valve seat is sheathed with a sealing ring forming sealable butted connection with the valve seat. The backflushing disc arranged in the safety valve replaces a valve flap, the structure of the safety valve becomes simple, the installation is more compact, in addition, the production material cost is reduced, a sealing layer is arranged in the backflushing disc, the characteristics of acid resistance, alkali resistance and resistance on corrosion of various organic solvents are realized, the backflushing disc cannot be easily damaged, the sealing performance is good, and the service cycle of the backflushing disc is prolonged.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of LPG safety valve.
Background technique
When safety valve was worked, when system works pressure surpasses the design authorized pressure, working medium just can be given power made progress of flap, due to Direct spring loaded safety valve spring force now lower than working pressure, the spring type safety valve spring is compressed, and flap rises, and medium is discharged from pressure relief opening.When working pressure lower than design during authorized pressure.The spring force of Direct spring loaded safety valve is greater than working pressure, and spring is upheld flap is pressed down, and makes the Direct spring loaded safety valve flap return seat.
Safety valve mainly comprises the valve gap be fixedly connected with, valve body and valve rod, in valve gap, be provided with, lower spring cup, on, between lower spring cup, be provided with spring, spring housing is located on valve rod, in valve body, the other end of corresponding valve gap is installed with valve seat, valve seat has been accessibly connected flap towards an end of valve gap, be connected Disc holder and Disc holder of flap is socketed on outside flap, Disc holder is arranged with guide sleeve outward, guide sleeve is fixedly connected with valve body, flap in valve rod and valve body is connected, one end of the corresponding valve seat of flap is installed with for valve seat, forming the seal ring be tightly connected.
Such structure is loaded down with trivial details, and the material that adopts Disc holder, flap, seal ring to coordinate simultaneously valve seat to use is many, and production cost is high, and mounting structure is not compact.
The model utility content
In order to overcome the deficiency of background technique, the utility model is carried a kind of for the liquefied petroleum gas (LPG) safety valve, has mainly solved the problem of existing safety valve structure complexity, this safety valve structure compactness, easy for installation, reduced the use of equipment and materials, reduced production cost.
The technological scheme that the utility model adopts is: a kind of LPG safety valve, comprise valve body, valve gap, valve rod and the valve seat in valve body is set, in valve gap, be provided with spring seat, spring seat comprises upper spring seat and lower spring cup, between upper spring seat and lower spring cup, be provided with spring, spring housing is located on valve rod, this spring upper end is connected to the Adjusting bolt Adjusting screw bottom be set in equally on valve rod by upper spring seat, this spring lower end is connected on lower spring cup, valve gap is fixedly connected with guide sleeve towards an end of valve seat, described valve seat has been accessibly connected Disc holder towards an end of valve gap, guide sleeve is set in Disc holder cover outer surface, valve rod and Disc holder are connected, in Disc holder, corresponding valve seat one end is arranged with valve seat and forms the seal ring that can conflict and be tightly connected.
By adopting above-mentioned technological scheme, by traditional, pass through being connected of Disc holder, flap and seal ring, change to directly and be connected by Disc holder and seal ring, reduced the use of material, reduce cost of production, made the structure of safety valve compacter, and easy for installation.
The technological scheme that the utility model adopts is: described seal ring is made by polytetrafluoroethylmaterial material.
By adopting above-mentioned technological scheme, teflon is compared the characteristics with resistance to chemical attack with other plastics, be widely used as sealing material, characteristics with extremely low, the antiacid alkali resistant of friction factor, anti-various organic solvent corrosion, the seal ring that this employing tetrafluoroethylene is made is applied in safety valve, but make safety valve fed sheet of a media expanded range, improved sealability and the practicability of safety valve.
The technological scheme that the utility model adopts is: described valve seat and valve body are threaded connection.
By adopting above-mentioned technological scheme, make the loading and unloading of valve seat and valve body convenient.
The technological scheme that the utility model adopts is: described valve gap is fixedly connected with valve body is detachable, and guide sleeve is fixedly arranged on the joint of valve gap and valve body.
By adopting above-mentioned technological scheme, make the assembling of safety valve more convenient, install more firm.
The beneficial effects of the utility model are: owing to taking technique scheme, Disc holder in safety valve has replaced flap, allow the structure of safety valve become simple, more compactness is installed, and has reduced the cost of material of producing, the sealing layer be provided with in Disc holder, characteristics with acidproof alkali resistant, anti-various organic solvent corrosion, Disc holder is difficult for being damaged, favorable sealing property, the life cycle that has extended Disc holder.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Reference character in figure: 1-valve body, 2-valve gap, 3-valve seat, 4-spring, 5-upper spring seat, 6-lower spring cup, 7-valve rod, 8-Adjusting bolt Adjusting screw, 9-guide sleeve, 10-Disc holder, 11-seal ring.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
As shown in Figure 1, a kind of New-type safety valve, comprise valve body 1, the valve gap 2 and valve seat 3 in valve body 1 is set, in valve gap 2, be provided with spring seat, spring seat comprises upper spring seat 5 and lower spring cup 6, between upper spring seat 5 and lower spring cup 6, be provided with spring 4, spring 4 is sheathed on valve rod 7, these spring 4 upper ends are connected to Adjusting bolt Adjusting screw 8 bottoms that are set in equally on valve rod 7 by upper spring seat 5, these spring 4 lower ends are connected on lower spring cup 6, valve gap 2 is fixedly connected with guide sleeve 9 towards an end of valve seat 3, described valve seat 3 has been accessibly connected Disc holder 10 towards an end of valve gap 2, guide sleeve 9 is set in Disc holder 10 cover outer surfaces, valve rod 7 is connected with Disc holder 10, interior corresponding valve seat 3 one ends of Disc holder 10 are arranged with valve seat 3 and form the seal ring 11 that salable conflict is connected.
Described a kind of New-type safety valve, described seal ring 11 adopts polytetrafluoroethylmaterial material to make.Such material has the characteristics of acidproof alkali resistant, anti-various organic solvent corrosion, and the life cycle of Disc holder 10 is extended, and allows Disc holder 10 be difficult for being damaged, and favorable sealing property, increase work efficiency.
Described a kind of New-type safety valve, described valve seat 3 is threaded connection with valve body 1.Make assembling more firm, can not cause the valve inner piece unstable, affect working efficiency.
Described a kind of New-type safety valve, described valve gap 2 is fixedly connected with valve body 1 is detachable, and guide sleeve 9 is fixedly arranged on the joint of valve gap 2 and valve body 1.Make the easier for installation of valve, and pin more firm.
Every technician's notice: although the utility model describes according to above-mentioned embodiment; but invention thought of the present utility model is not limited in this model utility; the repacking of any utilization inventive concept, all will include in this patent scope of patent protection.
Claims (4)
1. LPG safety valve, comprise valve body, valve gap, valve rod and the valve seat in valve body is set, in valve gap, be provided with spring seat, spring seat comprises upper spring seat and lower spring cup, between upper spring seat and lower spring cup, be provided with spring, spring housing is located on valve rod, this spring upper end is connected to the Adjusting bolt Adjusting screw bottom be set in equally on valve rod by upper spring seat, this spring lower end is connected on lower spring cup, valve gap is fixedly connected with guide sleeve towards an end of valve seat, it is characterized in that: described valve seat has been accessibly connected Disc holder towards an end of valve gap, guide sleeve is set in Disc holder cover outer surface, valve rod and Disc holder are connected, in Disc holder, corresponding valve seat one end is arranged with valve seat and forms the seal ring that can conflict and be tightly connected.
2. a kind of LPG safety valve according to claim 1, it is characterized in that: described seal ring is made by polytetrafluoroethylmaterial material.
3. a kind of LPG safety valve according to claim 1 and 2, it is characterized in that: described valve seat is connected with valve body screw thread.
4. a kind of LPG safety valve according to claim 3, it is characterized in that: described valve gap is fixedly connected with valve body is detachable, and guide sleeve is fixedly arranged on the joint of valve gap and valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203113040U CN203309239U (en) | 2013-05-31 | 2013-05-31 | Liquefied petroleum gas safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203113040U CN203309239U (en) | 2013-05-31 | 2013-05-31 | Liquefied petroleum gas safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203309239U true CN203309239U (en) | 2013-11-27 |
Family
ID=49615451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203113040U Expired - Fee Related CN203309239U (en) | 2013-05-31 | 2013-05-31 | Liquefied petroleum gas safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203309239U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822803A (en) * | 2016-05-30 | 2016-08-03 | 江苏金晟元特种阀门股份有限公司 | Chlorine and ammonia safety valve |
| CN109163126A (en) * | 2018-11-01 | 2019-01-08 | 恒华阀门有限公司 | High-performance high temperature and pressure safety valve |
-
2013
- 2013-05-31 CN CN2013203113040U patent/CN203309239U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822803A (en) * | 2016-05-30 | 2016-08-03 | 江苏金晟元特种阀门股份有限公司 | Chlorine and ammonia safety valve |
| CN109163126A (en) * | 2018-11-01 | 2019-01-08 | 恒华阀门有限公司 | High-performance high temperature and pressure safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Yongjia Dong'ou County of Wenzhou City, Zhejiang province 325000 streets and village Patentee after: Henghua Valve Co. Ltd. Address before: Yongjia Dong'ou County of Wenzhou City, Zhejiang province 325000 streets and village Patentee before: Zhejiang Heng Hua valve Co., Ltd |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20210531 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |