Built-in emergency cut-off device applied to liquefied gas storage tanks
A technology of liquefied gas storage tanks and cut-off devices, which is applied in the installation device of container structure, gas processing/storage purposes, gas/liquid distribution and storage, etc., and can solve root valve leakage failures, reliability needs to be improved, and valve opening and closing Control complex issues, achieve fast action, prevent accidents from expanding and upgrading, and facilitate opening and closing
Pending Publication Date: 2021-07-20
DALIAN JIAOTONG UNIVERSITY
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Problems solved by technology
[0005] Through the above analysis, the traditional root valves of the current liquefied gas storage tanks are susceptible to leakage and failure due to external influences, and the valve opening and closing control is complicated, and the reliability needs to be improved
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[0055] It should be noted that, in the case of no conflict, the embodiments of the present invention 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.
[0056] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordina...
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The invention discloses a built-in emergency cut-off device applied to liquefied gas storage tanks, and relates to the technical field of safety protection of liquefied gas storage tanks and particularly relates to a built-in emergency cut-off device applied to safety protection of liquefied gas storage tanks. The built-in emergency cut-off device comprises an exhaust channel, a fluid driving device, a built-in valve body, an external opening and closing control valve, a storage tank root connecting pipe and an external stop valve, wherein the external opening and closing control valve is arranged on the bottom tank wall of a liquefied gas storage tank; the built-in valve body is fixedly arranged on an in-tank interface of the storage tank root connecting pipe; the external stop valve (18) is fixedly arranged on an external interface of the storage tank root connecting pipe (17); the bottom end of the exhaust channel is connected with the external opening and closing control valve; the top end of the exhaust channel is arranged in a gas phase space of the top in the liquefied gas storage tank; and the fluid driving device is arranged on the exhaust channel and is connected with the built-in valve body. According to the technical scheme, the problems that the traditional root valve is prone to leakage and failure due to external influence, the opening and closing control of the valve is complex, and the reliability is poor in the prior art are solved.
Description
technical field [0001] The invention relates to a built-in emergency cut-off device for a liquefied gas storage tank, and relates to the technical field of safety protection for a liquefied gas storage tank, in particular to a built-in emergency cut-off device for the safety protection of a liquefied gas storage tank. Background technique [0002] The internal medium of the liquefied gas storage tank has the characteristics of high pressure, flammability and explosion. Once a leak occurs and cannot be plugged in time, it is very likely to cause serious accidents such as explosion. [0003] The root valve of the liquefied gas storage tank is installed in the root pipe, which is the last barrier to prevent the leakage of the storage tank, and its importance is self-evident. At present, the technology of storage tank root valves is relatively traditional. Most of the driving methods rely on manpower, hydraulic system, pneumatic or electric and combination methods. The valves ha...
Claims
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IPC IPC(8): F17C13/04F17C13/12
CPCF17C13/04F17C13/12F17C2205/0323F17C2260/042
Inventor 郭殿泽王文豪石剑云祝艺洋
Owner DALIAN JIAOTONG UNIVERSITY