CN207989831U - A kind of split type emergency cutoff valve for liquefied gas tank truck - Google Patents
A kind of split type emergency cutoff valve for liquefied gas tank truck Download PDFInfo
- Publication number
- CN207989831U CN207989831U CN201820289578.7U CN201820289578U CN207989831U CN 207989831 U CN207989831 U CN 207989831U CN 201820289578 U CN201820289578 U CN 201820289578U CN 207989831 U CN207989831 U CN 207989831U
- Authority
- CN
- China
- Prior art keywords
- valve
- built
- tank
- external
- liquefied gas
- 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.)
- Active
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
A kind of split type emergency cutoff valve for liquefied gas tank truck, including built-in valve, external valve.It is characterized in that：Built-in valve is connected mounted on tank body inside thread, and external valve is connected mounted on tank body outer flange, and built-in valve is provided with interior transmission valve rod, and external valve is provided with unofficial biography ovable valve stem, and only when unofficial biography ovable valve stem jacks up interior transmission valve rod, built-in valve could be opened.Emergency cutoff valve for liquefied gas tank truck is rigidly connected with the handling ball valve being arranged on vehicle frame in handling control cabinet with steel pipe at present, when major traffic accidents occur for tank car, it is highly susceptible to damage, and cause the leakage accident of high pressure flammable explosive gas in tank car, if mishandling, easily cause pernicious combustion explosion accident, consequence is hardly imaginable.And the great advantage of the utility model point is exactly：When major traffic accidents occur for tank car, even if external valve is seriously damaged or even completely falls off the leakage only leaned on and can prevent high pressure flammable explosive gas in tank if built-in valve, to avoid the generation of combustion explosion accident.
Description
Technical field
The utility model belongs to harmful influence transportation equipment machinery field, more particularly, to a kind of split type Railway Tank Cars for Liquefied Gas
Use quick action emergency valve.
Background technology
Quick action emergency valve, is mounted in safety attachment important in Railway Tank Cars for Liquefied Gas, and major parameter is：Nominal pressure
2.5MPa, operating temperature are not more than 50 DEG C, and inside nominal diameter liquid phase is 50mm, gas phase 25mm, Applicable media be liquefied ammonia, liquid chlorine,
Liquid sulfur dioxide, propylene, propane, butane, butadiene and its mixture.Its main function is：Cut-out is kept in transit
Valve is closed；The quick apolipsis of quick action emergency valve can be realized by hydraulic way or mechanical system in control cabinet or tank car tail portion；
It, can automatic apolipsis by meltable original paper when environment temperature is increased to prescribed limit due to fire etc.；When velocity of medium reaches
It, can automatic apolipsis by current-limiting mechanism when to prescribed limit.These functions of quick action emergency valve, to the safety of Railway Tank Cars for Liquefied Gas
Using playing an important role.Usual quick action emergency valve has built-in and two kinds of structure types of external, built-in：Stop valve
Major part in tank；External：Stop valve is mounted on tank outward flange or on pipeline.Unexpected traffic thing occurs in order to mitigate
Therefore when quick action emergency valve is damaged, liquid gas truck tank by regulation must use built-in quick action emergency valve.But due to
The built-in liquid gas truck tank quick action emergency valve of technology is integral type at present, and with the handling control that is arranged on vehicle frame
Handling ball valve in case processed is rigidly connected with steel pipe, thus when tank car occur major traffic accidents when, this integral type it is urgent
Stop valve is still highly susceptible to damage, and causes the leakage accident of high pressure flammable explosive gas in tank car, once it is mishandling,
Easily cause pernicious combustion explosion accident, consequence is hardly imaginable, brings and seriously threatens to people's lives and properties.
Invention content
The utility model is in view of the above-mentioned problems, provide a kind of split type emergency cutoff valve for liquefied gas tank truck.
The utility model is realized in this way：A kind of split type emergency cutoff valve for liquefied gas tank truck, including built-in valve,
External valve, it is characterized in that：Built-in valve is threadedly coupled mounted on tank body flange inner, and external valve is mounted on tank body flange outer sides flange
Connection, built-in valve are respectively independent with external valve.A kind of split type emergency cutoff valve for liquefied gas tank truck, feature exist
In：Built-in valve is provided with interior transmission valve rod, and external valve is provided with unofficial biography ovable valve stem, and interior transmission valve rod is to contact with unofficial biography ovable valve stem
Formula connects, and only when unofficial biography ovable valve stem jacks up interior transmission valve rod, built-in valve could be opened.
The advantages of the utility model：
Use the Railway Tank Cars for Liquefied Gas of the utility model when major traffic accidents occur, even if external valve is seriously damaged
Bad even to completely fall off, built-in valve can also be effectively prevented the leakage of high pressure flammable explosive gas in tank, pernicious to avoid
The generation of combustion explosion accident.
Description of the drawings：
Fig. 1 is schematic diagram when the utility model is closed.
Fig. 2 is schematic diagram when the utility model is opened.
Fig. 3 is valve built in the utility model component（1）Schematic diagram.
Fig. 4 is the external valve of the utility model component（2）Schematic diagram.
In figure：1 is built-in valve, 2 be external valve, 3 be interior transmission valve rod, 4 be unofficial biography ovable valve stem, 5 be tank body flange, 6 be
Tank body.
Specific implementation mode
As shown in Figure 1, a kind of split type emergency cutoff valve for liquefied gas tank truck, including built-in valve（1）, external valve（2）,
It is characterized in that：Built-in valve（1）Mounted on tank body flange（5）Inside thread connects, external valve（2）Mounted on tank body flange（5）Outside
Side flange connects, built-in valve（1）With external valve（2）It is respectively independent；A kind of split type automobile-used emergency cut-off of liquefied gas tank
Valve, it is characterised in that：Built-in valve（1）It is provided with interior transmission valve rod（3）, external valve（2）It is provided with unofficial biography ovable valve stem（4）, interior biography
Ovable valve stem（3）With unofficial biography ovable valve stem（4）It is connected for contact, only when unofficial biography ovable valve stem（4）By interior transmission valve rod（3）It jacks up,
Built-in valve（1）It could open.Valve built in the utility model（1）On other parts for example valve deck, pilot valve, valve rod, little spring,
Big spring, excess flow valve etc., same as the prior art, external valve（2）On hydraulic cutting device or mechanical cutting device and easily
Molten part is also identical as current technology.When having used the Railway Tank Cars for Liquefied Gas of the utility model that major traffic accidents occur, i.e.,
Make external valve（2）It is seriously damaged or even completely falls off, built-in valve（1）Also tank body can be effectively prevented（6）Interior high pressure is inflammable easily
The leakage of gas explosion body, to avoid the generation of pernicious combustion explosion accident.If traffic occurs for the tank car using the utility model
Accident, and external valve（2）It is damaged or falls off, which must be dragged to corresponding gas filling station nearby, reinstall one
A intact external valve（2）, restore corresponding pipe valve, you can safely draw off liquid gas in tank.The utility model
Built-in valve（1）Dress, tear open and must all enter tank body（6）Interior carry out operation, therefore the tank car without manhole cannot use.
The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to
Examples detailed above, technical solution belonging to the idea of the present invention belong to the scope of protection of the utility model.
Claims (2)
1. a kind of split type emergency cutoff valve for liquefied gas tank truck, including built-in valve, external valve, it is characterized in that：Built-in valve peace
Mounted in tank body flange inner be threadedly coupled, external valve be mounted on tank body flange outer sides flanged joint, built-in valve with external valve respectively
It is independent.
2. a kind of split type emergency cutoff valve for liquefied gas tank truck according to claim 1, it is characterised in that：Built-in valve is set
It is equipped with interior transmission valve rod, external valve is provided with unofficial biography ovable valve stem, and interior transmission valve rod is that contact is connect with unofficial biography ovable valve stem, only
When unofficial biography ovable valve stem jacks up interior transmission valve rod, built-in valve could be opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820289578.7U CN207989831U (en) | 2018-03-01 | 2018-03-01 | A kind of split type emergency cutoff valve for liquefied gas tank truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820289578.7U CN207989831U (en) | 2018-03-01 | 2018-03-01 | A kind of split type emergency cutoff valve for liquefied gas tank truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207989831U true CN207989831U (en) | 2018-10-19 |
Family
ID=63826117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820289578.7U Active CN207989831U (en) | 2018-03-01 | 2018-03-01 | A kind of split type emergency cutoff valve for liquefied gas tank truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207989831U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223857A (en) * | 2018-03-01 | 2018-06-29 | 广西壮族自治区特种设备检验研究院 | A kind of split type emergency cutoff valve for liquefied gas tank truck |
-
2018
- 2018-03-01 CN CN201820289578.7U patent/CN207989831U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223857A (en) * | 2018-03-01 | 2018-06-29 | 广西壮族自治区特种设备检验研究院 | A kind of split type emergency cutoff valve for liquefied gas tank truck |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201779323U (en) | Liquefied natural gas (LNG) dispenser release coupler | |
| CN207989831U (en) | A kind of split type emergency cutoff valve for liquefied gas tank truck | |
| CN106763964A (en) | A kind of Pull breaking ualve | |
| CN202557758U (en) | Inflatable rubber fender | |
| CN108223857A (en) | A kind of split type emergency cutoff valve for liquefied gas tank truck | |
| CN204528228U (en) | The safe respiratory system of groove tank car and groove tank car tank body | |
| CN206036658U (en) | Automatic control device is prevented leaking by gas fuel platform | |
| CN203809810U (en) | Low-temperature breaking valve | |
| CN107339484A (en) | A kind of urgent Pull breaking ualve | |
| CN107246521B (en) | One kind safely disconnecting valve | |
| CN105257981A (en) | Tank container for liquefied natural gas and emergency switching-off system of tank container | |
| CN207990197U (en) | A kind of improved spherical tank bleeds off pressure system | |
| CN204201465U (en) | The quantitative charging device of liquefied chlorine cistern car | |
| CA2912474A1 (en) | Improved pressure relief valve for railroad tank cars | |
| CN104089060A (en) | Emergency release coupler | |
| CN210440968U (en) | Pipeline structure and liquefied gas storage and transportation equipment with same | |
| CN103016808A (en) | Liquefied natural gas (LNG) tank car emergency release valve | |
| CN102401162B (en) | Temperature and pressure dual acting explosion-proof device | |
| CN203926974U (en) | A kind of Pull breaking ualve | |
| CN104355010A (en) | Leakage self-plugging method and device for storage tank pipeline accessory | |
| EP3011218B1 (en) | High-pressure fluid conduit | |
| CN207213264U (en) | A kind of storage tank or built in pipeline formula emergency safety device | |
| CN209137815U (en) | A kind of vehicle mounted automatic fire fighting device | |
| CN206130411U (en) | Ware of breaking for building | |
| EP3011217B1 (en) | High-pressure fluid conduit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |