CN207690341U - Low temperature groove tank car leakage accident with pressure disposes simulation training device - Google Patents
Low temperature groove tank car leakage accident with pressure disposes simulation training device Download PDFInfo
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- CN207690341U CN207690341U CN201721520413.8U CN201721520413U CN207690341U CN 207690341 U CN207690341 U CN 207690341U CN 201721520413 U CN201721520413 U CN 201721520413U CN 207690341 U CN207690341 U CN 207690341U
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Abstract
The utility model provides a kind of low temperature groove tank car leakage accident disposition simulation training device with pressure, including a low temperature liquid-supplying system, a control system and a leakage simulation system, the low temperature liquid-supplying system is connected to by leaking simulation system, the control system described in a piping connection on the pipeline.A kind of low temperature groove tank car leakage accident with pressure of the utility model disposes simulation training device, a variety of true low temperature automobile groove tank car control cabinet leakage effects with pressure such as simulation quick action emergency valve, safety valve, pipeline, flange and liquid level gauge are can reach, realize emergency disposal experiment and simulated training.
Description
Technical field
The utility model is related to fire-fighting domains more particularly to a kind of low temperature groove tank car leakage accident with pressure to dispose simulated training
Device.
Background technology
With the fast development of China's economy, inflammable and explosive and poisonous and harmful substance dosage increases considerably.According to statistics,
The hazardous chemical in 95% or more China is related to strange land transportation problem, and daily Transportation of Dangerous Chemicals amount is more than 1,000,000 tons, often
The transport total amount in year is more than 400,000,000 tons.According to incompletely statistics, in August, 2005 between in July, 2008, danger has occurred in China altogether
Chemical accident 1565 rises, accumulative to cause 945 people death, 8765 people injured.So more danger has occurred in short 3 year
Dangerous chemical accident has severely compromised the safety of life and property of the people.
These inflammable and explosive and poisonous and harmful substances accidental leakage frequent occurrence in production, storage and transportational process.
Accident not only results in huge economic loss, it is also possible to lead to catastrophic consequence.People, wealth are suffered heavy losses, especially
It is that will be unable to retrieve to the irreversibility damage of ecological environment.Automobile groove tank car especially low temperature groove tank car is let out once there is burst
The serious frostbite of personnel easily occurs for leakage accident, forms burning and explosive mixture, can then cause burning, explosion and people
Member's casualty accident, seriously threatens life and property safety of people and environmental protection.The scene of the accident generally on traffic main artery,
Once disposition is unsuccessful, that is, cause traffic paralysis.
It is therefore desirable to which fire-fighting and rescue personnel must be able to quickly and accurately judge accident pattern, corresponding Rescue Plan is formulated,
To rescue personnel's training, more stringent requirements are proposed for this.Therefore, carry out the accidental leakage disposition including low temperature groove tank car
Simulated training is studied, and is all of great significance for the emergency plan for accidents and emergency management and rescue of working out major hazard source.
Invention content
Deficiency in for the above-mentioned prior art, the utility model provide a kind of low temperature groove tank car leakage accident disposition with pressure
Simulation training device reaches a variety of true low temperature vapour with pressure such as simulation quick action emergency valve, safety valve, pipeline, flange and liquid level gauge
Recessing tank car control cabinet leakage effect realizes emergency disposal experiment and simulated training.
To achieve the goals above, the utility model provides a kind of low temperature groove tank car leakage accident disposition simulated training with pressure
Device, including a low temperature liquid-supplying system, a control system and a leakage simulation system, the low temperature liquid-supplying system pass through a pipeline
The leakage simulation system is connected, the control system is connected on the pipeline.
Preferably, the leakage simulation system includes a pipeline assembly, a liquid level gauge component and multiple first translation interfaces；
The pipeline assembly connects the pipeline by first translation interface；The liquid level gauge component connects the pipeline assembly.
Preferably, the leakage simulation system further includes two quick action emergency valves and an emergency cut-off control valve device, described
Quick action emergency valve is connected on the pipeline assembly, and the emergency cut-off control valve device connects the quick action emergency valve.
Preferably, the leakage simulation system further includes multiple cryogenic globe valves, and the cryogenic globe valve is connected to described
Pipeline assembly.
Preferably, the leakage simulation system further includes one first low-temperature safety valve, the first low-temperature safety valve connection
In the pipeline assembly.
Preferably, the leakage simulation system further includes multiple simulated leakage points, and the simulated leakage point connects the pipe
Road component.
Preferably, the leakage simulation system further includes a low temperature check-valves, a shut-off valve and/or a safety valve, described
Low temperature check-valves, the shut-off valve connect the pipeline assembly with the safety valve.
Preferably, the leakage simulation system further includes a flame-proof explosion-proof spark arrester, the flame-proof explosion-proof spark arrester connection
The pipeline assembly.
Preferably, the low temperature liquid-supplying system includes sequentially connected 1 second low-temperature safety valve, one first cryogenic vacuum
Shut-off valve, one first vacuum hose, one first low-temperature liquid storage container, one second vacuum hose, one second cryogenic vacuum are cut
Only valve and a third low-temperature safety valve；The low temperature liquid-supplying system further includes one second low-temperature liquid storage container and a vaporization
Device；Second low-temperature liquid storage container connects the vaporizer, and the vaporizer connects the third low-temperature safety valve；Institute
It states the second low-temperature safety valve and connects the pipeline.
Preferably, the control system include a PLC controller, a locator, a cutting ferrule ball valve, a pressure transmitter,
One temperature transmitter, a low temperature quick action emergency valve, one the 4th low-temperature safety valve, a third cryogenic vacuum shut-off valve and one second turn
Alias；The cutting ferrule ball valve, the locator and the PLC controller are sequentially connected, and the cutting ferrule ball valve connects the vapour
Change device and the third low-temperature safety valve；The low temperature quick action emergency valve, the 4th low-temperature safety valve, the third low temperature are true
Empty shut-off valve and second translation interface are set in turn on the pipeline；The pressure transmitter and the temperature transmitter
It is connected between the PLC controller and the pipeline.
The utility model makes it have following advantageous effect as a result of above technical scheme：
Low temperature liquid-supplying system provides low temperature liquid gas with pressure as simulated leakage medium for simulation training device；Control system
System starts for controlling feed flow, stops, pressure is adjusted, and control is stopped in emergency, display system pressure, temperature etc..Leakage simulation system
System is for simulating the low temperature groove tank car control cabinet leakages such as the leakage of liquefied natural gas groove tank car control cabinet, simulation liquefaction oxygen, nitrogen, argon.
The low temperature liquid gas with pressure of its storage of first low-temperature liquid storage container provides simulated leakage medium for device.Second Low Temperature Liquid
Body storage container can provide required leak pressure by vaporization for storing low temperature liquid gas with pressure for device.In addition also have
Following advantageous effect：
1, the utility model uses 1：1 makes variety classes low temperature groove tank car control cabinet with pressure, simulates urgent in control cabinet
A variety of true low temperature groove tank cars with pressure such as pipeline, liquid phase and gas phase entrance leak feelings after stop valve preceding pipeline, quick action emergency valve
Condition provides technology, equipment and method for low temperature liquid gas emergency leakage blocking experiment with pressure and simulated training, and the utility model is filled out
The blank of the prior art in this respect has been mended, has realized low temperature liquid gas groove tank car leakage accident emergency leakage blocking experiment with pressure and simulation
Training.
2, the utility model simulates low temperature groove tank car functional area with pressure, realizes a variety of low temperature groove tank car simulated experiments
With training, a variety of true low temperature groove tank car difference leakage situations are simulated, leak stopping modelling is conveniently replaceable for modularization.
3, the utility model carries low temperature liquid-supplying system with pressure, and maximum working pressure 2.5MPa covers all low temperature bands
Indent tank car operating pressure.And automatic analog is realized, high degree of automation is easy to operate, disclosure satisfy that actual emergent
Low temperature pressure sealing is tested and simulated training needs.
4, the utility model simulated leakage system simulates multiple types low temperature groove tank car control cabinet leakage situation, while simulating low
The warm a variety of emergency cut-off operations of groove tank car quick action emergency valve, meet fire drill demand.The utility model simulated leakage mouth mold is quasi-
Traffic accident or personnel damaged face caused by neglecting, are irregular surface.
5, the utility model is used as test(ing) medium using safety low-temperature liquid gas with pressure, and true reappearance low temperature is with hydraulic fluid
Change gas leakage accidents scene, while ensure that training of safety.
6, the substance for not generating any pollution environment when the utility model at work, meets the requirement of environmental protection.
Description of the drawings
Fig. 1 is that the structure of the low temperature groove tank car leakage accident disposition simulation training device with pressure of the utility model embodiment is shown
It is intended to.
Specific implementation mode
Below according to attached drawing 1, the preferred embodiment of the utility model is provided, and is described in detail, is enabled more preferable geographical
Solve the function, feature of the utility model.
Referring to Fig. 1, a kind of low temperature of the utility model embodiment groove tank car leakage accident disposition simulated training dress with pressure
It sets, including a low temperature liquid-supplying system 1, a control system 2 and one leak simulation system 3, low temperature liquid-supplying system 1 passes through a pipeline 4
Connection leakage simulation system 3, control system 2 are connected on pipeline 4.
Low temperature liquid-supplying system 1 provides low temperature liquid gas with pressure as simulated leakage medium for simulation training device；Control
System 2 starts for controlling feed flow, stops, pressure is adjusted, and control is stopped in emergency, display system pressure, temperature etc.；Leakage simulation
System 3 is let out for simulating the low temperature groove tank car control cabinets such as the leakage of liquefied natural gas groove tank car control cabinet, simulation liquefaction oxygen, nitrogen, argon
Leakage.
It includes a pipeline assembly 31, a liquid level gauge component 32 and multiple first translation interfaces 33 to leak simulation system 3；Pipeline
Component 31 passes through 33 connecting line 4 of the first translation interface；32 connecting line component 31 of liquid level gauge component.Liquid level gauge component 32 is used for
Simulate low temperature groove tank car liquid level gauge component leakage.
It further includes two quick action emergency valves 34 and an emergency cut-off control valve device 35, quick action emergency valve to leak simulation system 3
34 are connected on pipeline assembly 31, and emergency cut-off control valve device 35 connects quick action emergency valve 34.Two quick action emergency valves 34 and tight
When disconnected control valve device 35 is for simulating the leakage of low temperature groove tank car in a hurry emergency cut-off is closed with pneumatic two ways by manual
Valve is to cut off source of leaks.
It further includes multiple cryogenic globe valves 36 to leak simulation system 3, and cryogenic globe valve 36 is connected to pipeline assembly 31.Low temperature
Shut-off valve 36 is used to control the break-make of simulated leakage pipeline.
It further includes one first low-temperature safety valve 37 to leak simulation system 3, and the first low-temperature safety valve 37 is connected to pipeline assembly
31.First low-temperature safety valve 37 is for simulating low temperature groove tank car safety valve leakage failure.
It further includes multiple simulated leakage points 38,38 connecting line component 31 of simulated leakage point to leak simulation system 3.This implementation
In example, simulated leakage point 38 includes a flange simulated leakage point, is let out for simulating low temperature groove tank car pressure piping and flange failure
Leakage.Other simulated leakage points 38 are used to simulate low temperature groove tank car and the leakage hole that traffic accident damages occur, in irregular shape,
And it leaks.
It further includes a low temperature check-valves 39, a shut-off valve 310 and/or a safety valve 311 to leak simulation system 3, and low temperature stops
Return 311 connecting line component 31 of valve 39, shut-off valve 310 and safety valve.
Low temperature check-valves 39 is not sent out for controlling simulated leakage medium in simulation training device (low temperature liquid gas with pressure)
Raw backflow phenomenon.Shut-off valve 310 is for controlling simulated leakage medium in simulation training device (low temperature liquid gas with pressure) gasification
Backflow phenomenon does not occur for gas afterwards.Safety valve 311 is for controlling (the low temperature liquefaction with pressure of simulated leakage medium in simulation training device
Gas) gasification after gas pressure be no more than specified value, to personal safety and device operation protect.
It further includes a flame-proof explosion-proof spark arrester 312,312 connecting line component of flame-proof explosion-proof spark arrester to leak simulation system 3
31.Flame-proof explosion-proof spark arrester 312 prevents tempering for simulating when the emptying of LNG low temperature groove tank car superpressure discharge gas is lighted.
Low temperature liquid-supplying system 1 include sequentially connected 1 second low-temperature safety valve 11, one first cryogenic vacuum shut-off valve 12,
One first vacuum hose 13, one first low-temperature liquid storage container 14, one second vacuum hose 15, the cut-off of one second cryogenic vacuum
Valve 16 and a third low-temperature safety valve 17；Low temperature liquid-supplying system 1 further includes the vaporization of one second low-temperature liquid storage container 18 and one
Device 19；Second low-temperature liquid storage container 18 connects vaporizer 19 by a third vacuum hose 110, and vaporizer 19 connects third
Low-temperature safety valve 17；Second low-temperature safety valve, 11 connecting line 4.
The low temperature liquid gas with pressure of its storage of first low-temperature liquid storage container 14 provides simulated leakage medium for device.
Second low-temperature liquid storage container 18 can provide required leakage pressure by vaporization for storing low temperature liquid gas with pressure for device
Power.Vaporizer 19 provides Fluid simulation leaking medium (low temperature liquid gas with pressure) for simulated leakage system, and to simulated leakage
Cryogenic liquid medium increases leak pressure (maximum pressure 2.5Mpa).First cryogenic vacuum shut-off valve 12 and the second cryogenic vacuum are cut
Only valve 16 is used to control the break-make in Fluid simulation leaking medium (low temperature liquid gas with pressure) circuit.Second low-temperature safety valve, 11 He
Three low-temperature safety valves 17 are no more than specified value for controlling low temperature feed flow system pressure, are protected to personal safety and device operation
Shield.First vacuum hose 13, the second vacuum hose 15 and third vacuum hose 110 are for conveying simulated leakage medium (low temperature band
Press liquid gas) to simulation training device various pieces.
Control system 2 includes a PLC controller 21, a locator 22, a cutting ferrule ball valve 23, a pressure transmitter 24, one
Temperature transmitter 25, a low temperature quick action emergency valve 26, one the 4th low-temperature safety valve 27, a third cryogenic vacuum shut-off valve 28 and one
Second translation interface 29；Cutting ferrule ball valve 23, locator 22 and PLC controller 21 are sequentially connected, and cutting ferrule ball valve 23 connects vaporizer
19 and third low-temperature safety valve 17；Low temperature quick action emergency valve 26, the 4th low-temperature safety valve 27,28 and of third cryogenic vacuum shut-off valve
Second translation interface 29 is set in turn on pipeline 4；Pressure transmitter 24 and temperature transmitter 25 are connected to PLC controller
Between 21 and pipeline 4.
4th low-temperature safety valve 27 is no more than specified value for controlling 2 pressure of control system, is transported to personal safety and device
Row is protected.PLC controller 21 in the present embodiment includes a touch screen, and a control interface, user are provided on touch screen
It can be by realizing control startup to the operation of control interface, stopping, the operation that pressure is adjusted, stopped in emergency.Locator 22 is used for
It is accurately positioned 26 aperture of low temperature quick action emergency valve, adjusts the pressure and flow of simulated leakage medium (low temperature liquid gas with pressure).
26 opening size of low temperature quick action emergency valve corresponds to the different pressures and flow of simulated leakage medium (low temperature liquid gas with pressure).Card
Set ball valve 23 is used to control the break-make and pressure for the power gas source for being delivered to locator 22.Pressure transmitter 24 is used for metering analog
The pressure of simulated leakage medium (low temperature liquid gas with pressure) in training device.Temperature transmitter 25 is used for metering analog training cartridge
Set the temperature of middle simulated leakage medium (low temperature liquid gas with pressure).Third cryogenic vacuum shut-off valve 28 is for controlling simulated leakage
The circuit break-make of medium (low temperature liquid gas with pressure).Second translation interface 29 is for coupling control system 2 and leakage simulation system
System 3, controlled simulated leakage medium (low temperature liquid gas with pressure) require to be delivered to leakage simulation according to control system setup parameter
System 3.
It includes following specific to carry out low temperature groove tank car leakage accident disposition simulated training method with pressure using the utility model
Step：
1) 18 valve of the second low-temperature liquid storage container is opened, simulated leakage medium (low temperature liquid gas with pressure) passes through the
Three vacuum hoses 110 are gasificated into vaporizer 19 after gaseous state enters the first low-temperature liquid storage container 14 for increasing all the way
Simulated leakage pressure medium, another way enter locator 22 by cutting ferrule ball valve 23 and are opened for controlling low temperature quick action emergency valve 26
Degree.
2) the first cryogenic vacuum shut-off valve 12 of the first low-temperature liquid storage container 14, the simulated leakage after being pressurized are opened
Medium (low temperature liquid gas with pressure) is by low temperature quick action emergency valve 26, pressure transmitter 24, temperature transmitter 25, third low temperature
After vaccum stop valve 28, it is connected to leakage simulation system 3 by the second translation interface 29, low temperature is provided for leakage simulation system 3
Liquid gas with pressure.
3) in setting control system 2 PLC controller 21 leak pressure value, the pressure value of setting visits with pressure transmitter 24
The system pressure of survey is compared, relatively foundation of the gained difference as adjustment locator 22, adjusts 22 locator value of locator, fixed
Position device 22 drives low temperature quick action emergency valve 26 to move, and aperture that is big or reducing low temperature quick action emergency valve 26 is opened, to reach setting
Leak pressure value.
4) leakage simulation system 3 receives the simulated leakage medium of the offer of low temperature liquid-supplying system 1 by the first translation interface 33
(low temperature liquid gas with pressure), leakage simulation system 3 simulate simulated leakage point in variety classes low temperature groove tank car control cabinet with pressure
38, which occur accident, causes damaged leakage, simulated leakage medium (low temperature liquid gas with pressure) to be leaked in different location, training fire-fighting
Member is disposed training using distinct methods, can be automatically controled the single or multiple interface leak training of simulation.
The utility model is described in detail above in association with attached drawing embodiment, those skilled in the art can root
Many variations example is made to the utility model according to above description.Thus, certain details in embodiment should not be constituted to this practicality
Novel restriction, the utility model will be using the ranges that the appended claims define as the scope of protection of the utility model.
Claims (1)
1. a kind of low temperature groove tank car leakage accident with pressure disposes simulation training device, which is characterized in that including a low temperature feed flow system
System, a control system and one leakage simulation system, the low temperature liquid-supplying system by leaking simulation system described in a piping connection,
The control system is connected on the pipeline；
The leakage simulation system includes a pipeline assembly, a liquid level gauge component and multiple first translation interfaces；The pipeline group
Part connects the pipeline by first translation interface；The liquid level gauge component connects the pipeline assembly；The liquid level gauge
Component is for simulating low temperature groove tank car liquid level gauge component leakage；
The leakage simulation system further includes two quick action emergency valves and an emergency cut-off control valve device, and the quick action emergency valve connects
It is connected on the pipeline assembly, the emergency cut-off control valve device connects the quick action emergency valve；Two quick action emergency valves
It is closed tightly with pneumatic two ways by manual when with the emergency cut-off control valve device for simulating the leakage of low temperature groove tank car
Anxious stop valve is to cut off source of leaks；
The leakage simulation system further includes multiple cryogenic globe valves, and the cryogenic globe valve is connected to the pipeline assembly；Institute
State break-make of the cryogenic globe valve for controlling simulated leakage pipeline；
The leakage simulation system further includes one first low-temperature safety valve, and first low-temperature safety valve is connected to the pipeline group
Part；First low-temperature safety valve is for simulating low temperature groove tank car safety valve leakage failure；
The leakage simulation system further includes multiple simulated leakage points, and the simulated leakage point connects the pipeline assembly；It is described
Simulated leakage point includes a flange simulated leakage point, for simulating low temperature groove tank car pressure piping and flange leakage failure, other
The simulated leakage point is used to simulate low temperature groove tank car and the leakage hole that traffic accident damages occurs, in irregular shape, concurrently
Raw leakage；
The leakage simulation system further includes a low temperature check-valves, a shut-off valve and/or a safety valve, the low temperature check-valves,
The shut-off valve connects the pipeline assembly with the safety valve；The low temperature check-valves is for controlling mould in simulation training device
Backflow phenomenon does not occur for quasi- leaking medium, and the shut-off valve is used to control in simulation training device gas after the gasification of simulated leakage medium
Backflow phenomenon do not occur for body, and the safety valve is for controlling in simulation training device after the gasification of simulated leakage medium gas pressure not
More than specified value, personal safety and device operation are protected；
The leakage simulation system further includes a flame-proof explosion-proof spark arrester, and the flame-proof explosion-proof spark arrester connects the pipeline group
Part；The flame-proof explosion-proof spark arrester prevents tempering for simulating when the emptying of LNG low temperature groove tank car superpressure discharge gas is lighted；
The low temperature liquid-supplying system includes sequentially connected 1 second low-temperature safety valve, one first cryogenic vacuum shut-off valve, one
One vacuum hose, one first low-temperature liquid storage container, one second vacuum hose, one second cryogenic vacuum shut-off valve and a third
Low-temperature safety valve；The low temperature liquid-supplying system further includes one second low-temperature liquid storage container and a vaporizer；Described second is low
Geothermal liquid storage container connects the vaporizer, and the vaporizer connects the third low-temperature safety valve；The second low temperature peace
Full valve connects the pipeline；
The low temperature liquid gas with pressure of its storage of first low-temperature liquid storage container provides simulated leakage medium for device；Institute
Required leakage pressure can be provided by vaporization for storing low temperature liquid gas with pressure for device by stating the second low-temperature liquid storage container
Power；The vaporizer provides Fluid simulation leaking medium for simulated leakage system, and increases simulated leakage cryogenic liquid medium
The maximum pressure of leak pressure, the leak pressure is 2.5Mpa；The first cryogenic vacuum shut-off valve and second low temperature
Vaccum stop valve is used to control the break-make in Fluid simulation leaking medium circuit；Second low-temperature safety valve and three low temperature peace
Full valve is no more than specified value for controlling low temperature feed flow system pressure, is protected to personal safety and device operation；Described
One vacuum hose, the second vacuum hose and third vacuum hose are for conveying simulated leakage medium to each portion of simulation training device
Point；
The control system includes a PLC controller, a locator, a cutting ferrule ball valve, a pressure transmitter, a temperature pick-up
Device, a low temperature quick action emergency valve, one the 4th low-temperature safety valve, a third cryogenic vacuum shut-off valve and one second translation interface；Institute
It states cutting ferrule ball valve, the locator and the PLC controller to be sequentially connected, the cutting ferrule ball valve connects the vaporizer and described
Third low-temperature safety valve；The low temperature quick action emergency valve, the 4th low-temperature safety valve, the third cryogenic vacuum shut-off valve and
Second translation interface is set in turn on the pipeline；The pressure transmitter and the temperature transmitter are connected to
Between the PLC controller and the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721520413.8U CN207690341U (en) | 2017-11-15 | 2017-11-15 | Low temperature groove tank car leakage accident with pressure disposes simulation training device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721520413.8U CN207690341U (en) | 2017-11-15 | 2017-11-15 | Low temperature groove tank car leakage accident with pressure disposes simulation training device |
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| Publication Number | Publication Date |
|---|---|
| CN207690341U true CN207690341U (en) | 2018-08-03 |
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ID=62989386
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| CN201721520413.8U Active CN207690341U (en) | 2017-11-15 | 2017-11-15 | Low temperature groove tank car leakage accident with pressure disposes simulation training device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109584665A (en) * | 2018-11-23 | 2019-04-05 | 国网天津市电力公司电力科学研究院 | Sulfur hexafluoride leaks simulator and leak detection Training Methodology |
| CN110503871A (en) * | 2019-08-08 | 2019-11-26 | 湖北三江航天江北机械工程有限公司 | LNG double-purpose, which is unloaded, is pressurized the method for fast mfg of sled |
| CN111599245A (en) * | 2020-06-19 | 2020-08-28 | 抚顺抚运安仪救生装备有限公司 | Training equipment for simulating dangerous chemical leakage |
-
2017
- 2017-11-15 CN CN201721520413.8U patent/CN207690341U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109584665A (en) * | 2018-11-23 | 2019-04-05 | 国网天津市电力公司电力科学研究院 | Sulfur hexafluoride leaks simulator and leak detection Training Methodology |
| CN110503871A (en) * | 2019-08-08 | 2019-11-26 | 湖北三江航天江北机械工程有限公司 | LNG double-purpose, which is unloaded, is pressurized the method for fast mfg of sled |
| CN110503871B (en) * | 2019-08-08 | 2021-08-10 | 湖北三江航天江北机械工程有限公司 | Rapid manufacturing method of LNG dual-purpose unloading pressurizing pry |
| CN111599245A (en) * | 2020-06-19 | 2020-08-28 | 抚顺抚运安仪救生装备有限公司 | Training equipment for simulating dangerous chemical leakage |
| CN111599245B (en) * | 2020-06-19 | 2022-02-18 | 抚顺抚运安仪救生装备有限公司 | Training equipment for simulating dangerous chemical leakage |
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