CN208011287U - A kind of gas transmission emergency shutoff device - Google Patents
A kind of gas transmission emergency shutoff device Download PDFInfo
- Publication number
- CN208011287U CN208011287U CN201820134768.1U CN201820134768U CN208011287U CN 208011287 U CN208011287 U CN 208011287U CN 201820134768 U CN201820134768 U CN 201820134768U CN 208011287 U CN208011287 U CN 208011287U
- Authority
- CN
- China
- Prior art keywords
- gas
- emergency
- valve
- phase pipeline
- shutoff device
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 24
- 239000007789 gas Substances 0.000 claims abstract description 102
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 239000003949 liquefied natural gas Substances 0.000 claims abstract description 24
- 239000012071 phase Substances 0.000 claims abstract description 24
- 239000007791 liquid phase Substances 0.000 claims abstract description 22
- 230000009471 action Effects 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 11
- 239000002775 capsule Substances 0.000 claims description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 239000003345 natural gas Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model belongs to liquefied natural gas conveying ancillary equipment field, it is intended to provide a kind of gas transmission emergency shutoff device, its key points of the technical solution are that for the liquefied natural gas tank car to the gas transmission of gas station, the liquefied natural gas tank car is equipped with liquid phase pipeline and gas phase pipeline, the liquid phase pipeline and gas phase pipeline are connected with the pipeline at gas station, the liquefied natural gas tank car is equipped with pressure piping, the pressure piping is connected with extraneous high-pressure air source, including emergency cut-off mechanism, the emergency cut-off mechanism is installed on liquid phase pipeline, on gas phase pipeline and pressure piping, the emergency cut-off mechanism is connected with the control device of its startup of control；This gas transmission has good cut-out braking function with emergency shutoff device, reduces accident potential.
Description
Technical field
The utility model is related to liquefied natural gas conveying ancillary equipment field, more particularly to a kind of gas transmission is filled with emergency cut-off
It sets.
Background technology
With the high speed development of China's economy and industry, China is also increasing for the demand of fossil fuel, naturally
Gas main component alkane, wherein methane account for the overwhelming majority, separately have a small amount of ethane, propane and butane, and combustion product is main
It is effective to reduce sulfur dioxide and dust discharge amount for water and carbon dioxide, liquefied natural gas and its related industry increasingly by
To the concern of country and government.
Currently, the Chinese patent that Authorization Notice No. is CN2750169Y discloses a kind of liquefied petroleum gas platform and remotely pacifies
Full control device, the device by two pneumatic emergency stop valves, control gas circuit and setting control indoor gas cylinder, steam supply valve,
Air bleeding valve forms, and pneumatic emergency stop valve is connect by controlling gas circuit with gas cylinder, and steam supply valve setting is in control gas circuit；It anticipates
Pneumatic emergency stop valve cuts off gas circuit when outer.
But when it should be in large and medium-sized supply station, gas cylinder output pressure is low cannot to be met when natural gas contributes larger
Braking cut-out needs, and cannot cut off gas circuit in time, is secondly exactly to need that periodically gas cylinder is safeguarded and replaced, uses for a long time
It is easy to happen the hypodynamic situation of braking later to occur, increases security risk.
Utility model content
The utility model is to provide a kind of gas transmission emergency shutoff device, the advantage is that with good cut-out braking work
Can, reduce accident potential.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of gas transmission emergency shutoff device includes for the liquefied natural gas tank car to the gas transmission of gas station, the liquefaction day
Right gas-tanker is equipped with liquid phase pipeline and gas phase pipeline, and the liquid phase pipeline and gas phase pipeline are connected with the pipeline at gas station, the liquid
Change natural gas tank car and be equipped with pressure piping, the pressure piping is connected with extraneous high-pressure air source, including emergency cut-off mechanism, described
Emergency cut-off mechanism is installed on liquid phase pipeline, gas phase pipeline and pressure piping, and the emergency cut-off mechanism, which is connected with, controls it
The control device of startup.
By using above-mentioned technical proposal, the liquefied natural gas tank car is defeated to gas station by liquid phase pipeline and gas phase pipeline
Gas, the pressure piping are mainly used for being connected with extraneous high-pressure air source, and pressurizeing into the tank body of tank car is convenient to liquefy in tank body
The discharge of natural gas, the emergency cut-off mechanism are mainly used for when occurring leakage accident during gas transmission, and operating personnel grasp
Make control device driving emergency cut-off mechanism to start, cut-out liquid phase pipeline, gas phase pipeline and pressure piping avoid leakage accident
Occur, while the power needed for control device is provided by gas station, avoids that output pressure is insufficient to be happened.
Further setting：Emergency cut-off mechanism includes three quick action emergency valves, and the quick action emergency valve is separately mounted to liquid
On phase pipeline, gas phase pipeline and pressure piping.
By using above-mentioned technical proposal, the emergency cut-off mechanism mainly passes through three quick action emergency valve control liquefaction days
The break-make of right gas-tanker air delivering pipeline, when there is leakage accident, quick action emergency valve starts liquid phase pipeline, gas phase pipeline and supercharging
Pipeline is cut off.
Further setting：Emergency cut-off mechanism is equipped with air supply manifold, one end and the liquefied natural gas slot of the air supply manifold
Vehicle is connected to.
Electricity is avoided in the process of work because liquefied natural gas is imflammable gas by using above-mentioned technical proposal
The generation of spark selects the quick action emergency valve driven with pneumatic mode, the air supply manifold to be mainly used for during conveying
Pneumatic pressure power needed for quick action emergency valve is provided.
Further setting：Air supply manifold is equipped with four-way connection, and the four-way connection is connected with away from one end of air supply manifold
Three pneumatic operated valve gas source pipes, the pneumatic operated valve gas source pipe are connected with quick action emergency valve.
By using above-mentioned technical proposal, mainly it is convenient to three quick action emergency valves of air supply manifold couple while supplies, and
It is also beneficial to control the break-make of all pipelines simultaneously using the same air source, simplifies the structure of equipment.
Further setting：Control device includes switch board, and the switch board is equipped with the gentle source connecting tube of high pressure gas source capsule, institute
It states high pressure gas source capsule to be connected to the air source at gas station, the air source connecting tube and emergency cut-off mechanism connection.
By using above-mentioned technical proposal, the high pressure gas source capsule of the switch board is connected to the air source at gas station, is supplied by gas station
Gas ensures the in running order level of operating air pressure of equipment, avoids sending out using there is the too low situation of air pressure due to long-time
It is raw.
Further setting：Air source connecting tube is equipped with three-way ball valve, described to have three-way ball valve to be set to air source connecting tube and gas
The junction of source manifold.
By using above-mentioned technical proposal, the three-way ball valve is compared with the closing means of gate etc, the three-way ball
Valve has more outstanding sealing performance.
Further setting：Air source connecting tube is equipped with two-way valve, and the two-way valve is set to air source connecting tube and high pressure
The junction of gas source pipe.
By using above-mentioned technical proposal, the two-way valve is mainly convenient to control cabinet and is connected to high pressure gas source capsule, and
And prevent gas from being revealed from junction.
Further setting：It is connected with pressure gauge in air source connecting tube.
By using above-mentioned technical proposal, the pressure gauge is mainly convenient to during plant maintenance with regard to staff
Collect the pressure data in air source connecting tube.
Further setting：Quick action emergency valve includes valve body and pressurized cylinder, and the pressurized cylinder is installed on the middle part of valve body.
By using above-mentioned technical proposal, pressurized cylinder starts when work, and the pressure inside pressurized cylinder increases, it is described plus
The piston rod release of air cylinder, which is inserted into valve body, blocks block channels.
Further setting：Quick action emergency valve is equipped with liquid raw material band, and the flange that the liquid raw material band is set to valve body connects
Meet place.
By using above-mentioned technical proposal, liquid raw material band is applied to flange connections by staff when installation, then
Assembly is stood, and the liquid raw material band is mainly used for increasing the leakproofness of the flange connections of valve body.
In conclusion the utility model has the advantages that：
1, there is good cut-out braking function, reduce accident potential；
2, entire be equipped with has good air-tightness, reduces the possibility that leakage accident occurs.
Description of the drawings
Fig. 1 is a kind of real structural schematic diagram of gas transmission emergency shutoff device；
Fig. 2 is the structural schematic diagram of quick action emergency valve.
In figure, 1, liquefied natural gas tank car；11, liquid phase pipeline；111, liquid phase pneumatic operated valve；12, gas phase pipeline；121, gas phase
Pneumatic operated valve；13, pressure piping；2, emergency cut-off mechanism；21, air supply manifold；22, four-way connection；23, pneumatic operated valve gas source pipe；24,
Quick action emergency valve；241, valve body；242, pressurized cylinder；243, liquid raw material band；3, control device；31, switch board；32, high pressure
Gas source pipe；33, air source connecting tube；331, two-way valve；332, pressure gauge；34, three-way ball valve.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment：A kind of gas transmission emergency shutoff device, as shown in Figure 1, including natural for the liquefaction to the gas transmission of gas station
Gas-tanker 1, the liquefied natural gas tank car 1 are equipped with liquid phase pipeline 11 and gas phase pipeline 12, the liquid phase pipeline 11 and gas phase pipe
Road 12 is connected with the pipeline at gas station, and the pipeline mainly uses metal hose, since metal hose has preferable retractility, without hindrance
Plug or tube body are stiff, are conducive to the conveying of liquefied natural gas.The liquid phase pipeline 11 and gas phase pipeline 12 are respectively equipped with liquid phase gas
Dynamic valve 111 and gas phase pneumatic operated valve 121, the liquid phase pneumatic operated valve 111 and gas phase pneumatic operated valve 121 are mainly used for controlling liquid phase pipeline 11
With gas phase pipeline 12 be connected to and closing.The liquefied natural gas tank car 1 is equipped with pressure piping 13, the pressure piping 13 with it is outer
Boundary's high-pressure air source is connected, and from extraneous high-pressure air source by pressure piping 13, the gas injection into liquefied natural gas tank car 1 is pressurizeed when work,
It is convenient to the liquefied natural gas conveying of liquefied natural gas tank car 1.
As shown in Figure 1, the emergency cut-off mechanism 2 is equipped with air supply manifold 21, the air supply manifold 21 and liquefied natural gas
Tank car 1 is connected to, on the one hand the work air source as emergency cut-off mechanism 2 of the liquefied natural gas tank car 1 avoids again from the external world
Work air source is connected, another aspect emergency cut-off mechanism 2 and air delivering pipeline are convenient to centralized control using same air source.The gas
Source manifold 21 is equipped with four-way connection 22, and the four-way connection 22 is connected with three pneumatic operated valve air sources away from one end of air supply manifold 21
Pipe 23, the pneumatic operated valve gas source pipe 23 are connected with quick action emergency valve 24, and the quick action emergency valve 24 is respectively arranged at liquid phase pipeline
11, on gas phase pipeline 12 and pressure piping 13, the quick action emergency valve 24 is mainly used for cutting off when there is unexpected leakage accident
Pipeline.
As shown in Fig. 2, the quick action emergency valve 24 include valve body 241 and pressurized cylinder 242, the pressurized cylinder 242 with
Pneumatic operated valve gas source pipe 23 is connected to, and the pressurized cylinder 242 is set to the middle part of valve body 241, when finding leakage accident, the pressurization
Cylinder 242 starts, and piston rod separates closed valve 241 to push-in inside valve body 241.The quick action emergency valve 24 is equipped with liquid
Raw material band 243, the liquid raw material band 243 are set to 241 flange connections of valve body, and staff is by liquid raw material band when installation
243 are applied to flange connections, then assemble, stand, and the liquid raw material band 243 is mainly used for increasing the flanged joint of valve body
The leakproofness at place.
As shown in Figure 1, the control device 3 includes switch board 31, the switch board 31 is mainly used for controlling each pipeline
Connection and closing.The switch board 31 is equipped with high pressure gas source capsule 32 and air source connecting tube 33, the high pressure gas source capsule 32 and gas
The air source connection stood, the air source connecting tube 33 are connected to emergency cut-off mechanism 2 and control its break-make.The high pressure gas source capsule 32
It is connected by two-way valve 331 between air source connecting tube 33, the air source connecting tube 33 is equipped with pressure gauge 332, the pressure
Power table 332 is mainly convenient to staff and collects pressure data in air source connecting tube during equipment work.The air source
Connecting tube 33 is equipped with three-way ball valve 34, and the three-way ball valve 34 is set on the air supply manifold 21 of emergency cut-off mechanism 2, and described three
Pass ball valve 34 is mainly used for controlling the break-make of air supply manifold 21.
The operation principle of whole device is as follows：When liquefied natural gas tank car 1 unloads liquid, opening two-way valve 331 makes high pressure
Gas source pipe 32 presses the scram button of switch board 31, at this time control device 3 with 31 unicom of switch board when there is leak case
Three-way ball valve open, the air supply manifold 21 of the emergency cut-off mechanism 2 is connected, and all quick action emergency valves 24 is driven to start cut-out
Pipeline.Simultaneously when liquefied natural gas tank car 1 unloads liquid, total air source of the emergency cut-off mechanism 2 and total air source at gas station are same
One air source is closed when that in emergency circumstances, can control quick action emergency valve 24 together with the pneumatic operated valve at gas station.
The above embodiments are only the explanation to the utility model, are not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (10)
1. a kind of gas transmission emergency shutoff device includes for the liquefied natural gas tank car to the gas transmission of gas station（1）, the liquefaction day
Right gas-tanker（1）Equipped with liquid phase pipeline（11）With gas phase pipeline（12）, the liquid phase pipeline（11）With gas phase pipeline（12）With gas
The pipeline stood is connected, the liquefied natural gas tank car（1）Equipped with pressure piping（13）, the pressure piping（13）With extraneous high pressure
Air source is connected, it is characterized in that：Including emergency cut-off mechanism（2）, the emergency cut-off mechanism（2）It is installed on liquid phase pipeline（11）,
Gas phase pipeline（12）And pressure piping（13）On, the emergency cut-off mechanism（2）Driving air source be gas station, the emergency cut-off
Mechanism（2）It is connected with the control device of its startup of control（3）.
2. a kind of gas transmission emergency shutoff device according to claim 1, it is characterized in that：The emergency cut-off mechanism（2）
Including three quick action emergency valves（24）, the quick action emergency valve（24）It is separately mounted to liquid phase pipeline（11）, gas phase pipeline（12）
And pressure piping（13）On.
3. a kind of gas transmission emergency shutoff device according to claim 2, it is characterized in that：The emergency cut-off mechanism（2）
Equipped with air supply manifold（21）, the air supply manifold（21）One end and liquefied natural gas tank car（1）Connection.
4. a kind of gas transmission emergency shutoff device according to claim 3, it is characterized in that：The air supply manifold（21）It is equipped with
Four-way connection（22）, the four-way connection（22）Away from air supply manifold（21）One end be connected with three pneumatic operated valve gas source pipes
（23）, the pneumatic operated valve gas source pipe（23）With quick action emergency valve（24）It is connected.
5. a kind of gas transmission emergency shutoff device according to claim 1, it is characterized in that：The control device（3）Including
Switch board（31）, the switch board（31）Equipped with high pressure gas source capsule（32）With air source connecting tube（33）, the high pressure gas source capsule
（32）It is connected to the air source at gas station, the air source connecting tube（33）With emergency cut-off mechanism（2）It is connected to and controls its break-make.
6. a kind of gas transmission emergency shutoff device according to claim 5, it is characterized in that：The air source connecting tube（33）If
There is three-way ball valve（34）, described to have three-way ball valve（34）It is set to air source connecting tube（33）With air supply manifold（21）Junction.
7. a kind of gas transmission emergency shutoff device according to claim 6, it is characterized in that：The air source connecting tube（33）If
There is two-way valve（331）, the two-way valve（331）It is set to air source connecting tube（33）With high pressure gas source capsule（32）Connection
Place.
8. a kind of gas transmission emergency shutoff device according to claim 7, it is characterized in that：The air source connecting tube（33）On
It is connected with pressure gauge（332）.
9. a kind of gas transmission emergency shutoff device according to claim 2, it is characterized in that：The quick action emergency valve（24）Packet
Include valve body（241）And pressurized cylinder（242）, the pressurized cylinder（242）It is installed on valve body（241）Middle part.
10. a kind of gas transmission emergency shutoff device according to claim 9, it is characterized in that：The quick action emergency valve（24）
Equipped with liquid raw material band（243）, the liquid raw material band（243）It is set to valve body（241）Flange connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820134768.1U CN208011287U (en) | 2018-01-25 | 2018-01-25 | A kind of gas transmission emergency shutoff device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820134768.1U CN208011287U (en) | 2018-01-25 | 2018-01-25 | A kind of gas transmission emergency shutoff device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208011287U true CN208011287U (en) | 2018-10-26 |
Family
ID=63883392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820134768.1U Expired - Fee Related CN208011287U (en) | 2018-01-25 | 2018-01-25 | A kind of gas transmission emergency shutoff device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208011287U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397848A (en) * | 2018-12-28 | 2019-11-01 | 河北驹王专用汽车股份有限公司 | A kind of LNG tank vehicle emergency cut-off automatic control system |
| CN111005903A (en) * | 2019-12-02 | 2020-04-14 | 浙江金象科技有限公司 | Pneumatically controlled emergency shut-off device |
| CN114704773A (en) * | 2022-04-06 | 2022-07-05 | 深圳市唯品电力智能科技有限公司 | Intelligent blocking device and method for combustible gas tempering |
-
2018
- 2018-01-25 CN CN201820134768.1U patent/CN208011287U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397848A (en) * | 2018-12-28 | 2019-11-01 | 河北驹王专用汽车股份有限公司 | A kind of LNG tank vehicle emergency cut-off automatic control system |
| CN111005903A (en) * | 2019-12-02 | 2020-04-14 | 浙江金象科技有限公司 | Pneumatically controlled emergency shut-off device |
| CN114704773A (en) * | 2022-04-06 | 2022-07-05 | 深圳市唯品电力智能科技有限公司 | Intelligent blocking device and method for combustible gas tempering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |