CN201982690U - Dimethyl ether self-sealing cylinder valve - Google Patents
Dimethyl ether self-sealing cylinder valve Download PDFInfo
- Publication number
- CN201982690U CN201982690U CN2011200612813U CN201120061281U CN201982690U CN 201982690 U CN201982690 U CN 201982690U CN 2011200612813 U CN2011200612813 U CN 2011200612813U CN 201120061281 U CN201120061281 U CN 201120061281U CN 201982690 U CN201982690 U CN 201982690U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- dimethyl ether
- cylinder
- cylinder valve
- 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 - Lifetime
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Abstract
The utility model relates to a dimethyl ether self-sealing cylinder valve, which comprises a valve body and a valve rod, wherein a step is arranged on the valve rod for placing a pressure nut arranged between the valve body and the valve rod, a sealing gasket is arranged at the lower part of the pressure nut, a spring is arranged on the valve rod for enabling the sealing gasket to be closely contacted with the valve rod, and a small hole communicated with the valve rod is formed at the gas outlet end of the cylinder valve. By adding the small hole, the action of gas pressure is utilized for further improving the upward force on the basis of the force of the spring, therefore the sealing performance of the cylinder valve is improved, the safety performance of the cylinder valve is improved, structure is simple and using effect is excellent.
Description
Technical field
The utility model relates to a kind of valving, relate in particular to a kind of be applied to gas cylinder non-dismountable formula dimethyl ether resistant valve.
Background technique
Be mixed with gas of dimethyl ether in the present known LP gas cylinder,, become the one of the main reasons that present LP gas cylinder often causes fire accident because the not dimethyl ether resistant corrosion of existing liquefied petroleum gas cylinder valve Sealing causes gas leakage.Therefore, be necessary to design a kind of novel valve.
The patent No. provides a kind of cylinder valve structure for 200920041158.8 patent, a kind of double sealing structure is provided, a power that makes progress utilizing spring that valve rod is provided, make to be arranged between the sealing gasket of pressing female bottom and the valve rod and form the first road R shape sealing, and some O-ring seals are set at valve rod and the female vertical joining portion of pressure, form the sealing of second road, the cylinder valve structure that this kind structural type is more traditional has excellent sealing performance more, be difficult for causing combustion gas to reveal, improved the Safety performance of cylinder valve; But this kind structural type only relies on the elastic force of spring to guarantee the sealability of first road sealing, performance to spring has proposed high requirement, relatively poor or use after a period of time after the elasticity variation as spring-mass, provide power upwards may have deficiency, first pipeline sealing property can not get effective assurance, has potential safety hazard.
The model utility content
The utility model is at above-mentioned defective, and the dimethyl ether selfsealings cylinder valve that provides a kind of sealability further to be guaranteed is provided purpose.
The technical solution of the utility model is: the utility model includes valve body, valve rod, establish step on the valve rod and be arranged on pressure mother between valve body and the valve rod with placement, press female bottom that sealing gasket is set, on the valve rod spring is set so that sealing gasket closely contacts with valve rod, the outlet side of cylinder valve is provided with the aperture that is communicated with valve rod.
Further, press the place, vertical joining portion of female and valve rod to establish some O-ring seals.
The annular groove that establishing is closed between the utility model valve body and the pressure mother is established in the annular groove and is enclosed pin.
The utility model has the advantages that: the utility model has increased by an aperture, utilize on the basis that acts on spring force of air pressure and further improved a power that makes progress, further improved the sealability of cylinder valve, improved the Safety performance of cylinder valve to valve rod, simple in structure, using effect is good.
Description of drawings
Fig. 1 is a structural representation of the present utility model
1 is handwheel, the 2nd among the figure, encloses pin, the 3rd, presses mother, the 4th, " O " shape Mi Quan, the 5th, sealing gasket, the 6th, valve rod, the 7th, spring, the 8th, valve, the 9th, valve body, the 10th, aperture.
Embodiment
Cylinder valve of the present utility model is provided with the sealing gasket 5 of dimethyl ether resistant in the bottom of pressing female 3, under the effect of the spring 7 between valve rod 6 and the valve 8, the R face of valve rod 6 bottoms is closely contacted with sealing gasket 5, plays first road and seals; Simultaneously when by handwheel 1 with valve opening after, inner Pneumatic pipe cleaner is crossed the aperture 10 that is arranged on the valve 8 makes valve rod 6 increase a power that makes progress again, thereby makes this valve be in the selfsealings state always, making the sealing of winning more reliable; " O " shape seal ring 4 of pressing female 3 inside to be provided with dimethyl ether resistant make press female 3 with valve rod 6 threes between closely contact, play second road and seal.
The utility model is established at valve body 9 with between pressing female 3 and is enclosed pin 2, makes and presses female 3 not produce rotation, realizes non-dismountable.
Claims (3)
1. dimethyl ether selfsealings cylinder valve, include valve body, valve rod, establish step on the valve rod and be arranged on pressure mother between valve body and the valve rod with placement, press female bottom that sealing gasket is set, on the valve rod spring is set so that sealing gasket closely contacts with valve rod, it is characterized in that the outlet side of cylinder valve is provided with the aperture that is communicated with valve rod.
2. dimethyl ether selfsealings cylinder valve according to claim 1 is characterized in that, presses the place, vertical joining portion of female and valve rod to establish some O-ring seals.
3. dimethyl ether selfsealings cylinder valve according to claim 1 is characterized in that, the annular groove that establishing is closed between valve body and the pressure mother is established in the annular groove and enclosed pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200612813U CN201982690U (en) | 2011-03-10 | 2011-03-10 | Dimethyl ether self-sealing cylinder valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200612813U CN201982690U (en) | 2011-03-10 | 2011-03-10 | Dimethyl ether self-sealing cylinder valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982690U true CN201982690U (en) | 2011-09-21 |
Family
ID=44610152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200612813U Expired - Lifetime CN201982690U (en) | 2011-03-10 | 2011-03-10 | Dimethyl ether self-sealing cylinder valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201982690U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410989A (en) * | 2013-07-30 | 2013-11-27 | 江苏民生特种设备集团有限公司 | Liquefied dimethyl ether cylinder valve |
| WO2018233530A1 (en) | 2017-06-23 | 2018-12-27 | Engineered Controls International, Llc | Cryogenic cylinder control system, globe valve, and solenoid valve |
-
2011
- 2011-03-10 CN CN2011200612813U patent/CN201982690U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410989A (en) * | 2013-07-30 | 2013-11-27 | 江苏民生特种设备集团有限公司 | Liquefied dimethyl ether cylinder valve |
| WO2018233530A1 (en) | 2017-06-23 | 2018-12-27 | Engineered Controls International, Llc | Cryogenic cylinder control system, globe valve, and solenoid valve |
| CN110785596A (en) * | 2017-06-23 | 2020-02-11 | 国际工程控制公司 | Low temperature tank control system, stop valve and solenoid valve |
| US11592120B2 (en) | 2017-06-23 | 2023-02-28 | Engineered Controls International, Llc | Cryogenic cylinder control system, globe valve, and solenoid valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |