Control method, pressure control system and transportation means of liquefied gas transportation container
A technology for liquefied gas and transportation containers, which is applied in the directions of container discharge method, container filling method, gas treatment/storage purpose, etc. The effect of reducing the risk of explosion and reducing the impact
Active Publication Date: 2020-10-02
CRRC QIQIHAR ROLLING CO LTD +1
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Problems solved by technology
[0003] The present invention aims to provide a control method, a pressure control system and a transport tool for a liquefied gas transport container, so as to solve the problem in the prior art that the pressure relief action of the liquefied natural gas tank is not controlled and will occur on a special road section, which affects the transportation safety. question
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[0018] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0019] The present application provides a control method for a liquefied gas transport container and a pressure control system for a liquefied gas transport container that realizes the control method, such as figure 1 As shown, the pressure control system of this embodiment includes: a controller 4, a pressure sensor 1, a positioning sensor 2 and a driving structure. 4, the positioning sensor 2 is set on the liquefied gas transport tool and connected to the controller 4, and the driving structure is connected between the controller 4 and the valve of the exhaust pipe. The controller 4 can control the action of the driving structure according to the information fed back by the pressure sensor 1...
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The present invention provides a control method, a pressure control system, and a transportation tool for a liquefied gas transportation container, wherein the control method for a liquefied gas transportation container includes the following steps: Step S10: measure the pressure in the container in real time and calculate the pressure to reach the discharge pressure The remaining time T1 of the remaining time, obtain the time T2 when the container arrives at the non-discharging section in real time; Step S20: In the case of T1<T2, perform exhaust operation when the pressure in the container reaches the discharge pressure; in the case of T1≥T2, the container arrives Exhaust operation is performed before the non-discharge section to keep the pressure in the container below the discharge pressure before leaving the non-discharge section. The technical scheme of the invention effectively solves the problem in the prior art that the pressure relief action of the liquefied natural gas tank is uncontrolled and may occur on a special road section, thereby affecting the transportation safety.
Description
technical field [0001] The invention relates to the field of liquefied gas transportation, in particular to a control method, a pressure control system and a transportation tool for a liquefied gas transportation container. Background technique [0002] The advantages of railway tank container transportation of liquefied natural gas are obvious, and it meets the development needs of domestic logistics and has been widely used. However, the tank container for transporting liquefied natural gas continues to absorb the heat of the environment during the transportation process, resulting in a continuous increase in the pressure inside the tank. Therefore, it is necessary to install a tank safety valve to discharge the tank. Uncontrolled discharge of current LNG tanks may occur at any time. When tank containers pass through special road sections (such as stations, tunnels, towns, etc. where the space is relatively closed or where the population is concentrated), gas accumulation...
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IPC IPC(8): F17C9/02F17C13/00F17C13/02F17C13/04F17C13/12
CPCF17C9/02F17C13/025F17C13/04F17C13/123F17C13/005F17C2223/0153F17C2223/033F17C2225/0123F17C2250/043F17C2250/0473F17C2250/0491F17C2250/0694F17C2260/021F17C2260/044F17C2260/042F17C2270/0102F17C2270/0168F17C2250/034F17C2250/0478F17C2201/054F17C2205/0332F17C2221/033F17C2223/0161F17C2223/043F17C2250/0626F17C2250/072F17C2260/035F17C2265/032F17C2270/0173
Inventor 侯冲尹晶郭军王程龙刘雨侯天华李斌斌张军凤伞军民李翠
Owner CRRC QIQIHAR ROLLING CO LTD