A protection device for gas filling connection of liquefied natural gas cylinder
A technology for connection of liquefied natural gas and gas filling, which is applied in the direction of valve device, valve operation/release device, container filling method, etc. It can solve problems such as easy accumulation of dust and blockage at the gas filling port, and easy leakage during the filling process of liquefied natural gas cylinders. Combustion efficiency, guaranteed aeration efficiency, guaranteed purity effect
Active Publication Date: 2020-09-04
宁夏天利丰能源利用有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to solve the shortcomings in the prior art that the liquefied natural gas cylinder lacks the necessary protection device during the filling process, which leads to the easy leakage of the liquefied natural gas cylinder during the filling process, and the filling port is easy to accumulate dust and cause blockage, and proposes a Inflatable connection protection device for liquefied natural gas cylinder
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[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0020] refer to Figure 1-5 , an inflatable connection protection device for a liquefied natural gas cylinder, comprising a valve body 1 and an inflatable connector, the valve body 1 has a cavity structure, one end of the valve body 1 is provided with an air outlet 4, and the input end of the air outlet 4 is fixedly provided with a third Return spring 19, the end of the third return spring 19 away from the air outlet 4 is fixed with an anti-leakage plug 20, and the valve body 1 is provided with an anti-leakage groove 22 matching the anti-leakage plug 20, and the anti-leakage plug 20 is a circular truncated structure , the anti-leakage plug 20 is fixed with a sealing ...
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The invention relates to the technical field of gas charging protection of a liquefied natural gas steel cylinder, and particularly relates to a gas charging connecting protective device for the liquefied natural gas steel cylinder. The gas charging connecting protective device for the liquefied natural gas steel cylinder comprises a valve body and a gas charging connecting piece, wherein a gas outlet is formed in one end of the valve body; an anti-leakage plug and an anti-leakage tank are arranged in the gas outlet; a gas charging abutting joint sleeve is arranged at one end of the valve body; a locking tank, an abutting joint hole, a dustproof screen door and a dustproof rotary disc are arranged in the gas charging abutting joint sleeve; a valve seat is arranged in the valve body; a valve disc is arranged on the top of the valve seat; a slide bar is arranged on the top of the valve disc; a valve cover is arranged on the top of the valve body; a sealing membrane is arranged between the slide bar and the valve cover; a locking pin is arranged on the top of the slide bar; the gas charging connecting piece comprises a handle; a gas charging pipeline is arranged at one side of the handle; and a locking block, a sealing gasket and a dustproof poking part are fixedly arranged at one side, far away from the gas charging pipeline, of the handle. The gas charging connecting protectivedevice for the liquefied natural gas steel cylinder is simple in structure and reasonable in design, can effectively prevent the liquefied natural gas steel cylinder from leaking in a gas charging process, a backflow phenomenon and a blocking phenomenon, has market prospect and is suitable for popularization.
Description
technical field [0001] The invention relates to the technical field of inflation protection for natural gas cylinders, in particular to an inflation connection protection device for liquefied natural gas cylinders. Background technique [0002] Because there is no waste residue and waste water after natural gas is burned, it is clean and environmentally friendly. Compared with coal, petroleum and other energy sources, it has the advantages of safe use, high calorific value, and cleanliness. As an ideal alternative fuel for internal combustion engines, natural gas has been widely used in automobile engines, and the compressed natural gas (compressed natural gas) charging valve for vehicles is a safety accessory on the natural gas pipeline system for vehicles. The opening and closing device provides power guarantee for the automobile pipeline system. Existing compressed natural gas filling guns are divided into male and female types, so the charging valve also has correspondi...
Claims
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IPC IPC(8): F16K1/32F16K1/36F16K31/60F17C13/04
CPCF16K1/32F16K1/36F16K31/60F17C13/04
Inventor 李玉凤杨芳张庆霞苗冠军张利波
Owner 宁夏天利丰能源利用有限公司