Safety device for preventing liquid spraying during liquid adding and gun withdrawing of LNG dispenser
A technology of safety device and gas dispenser, which is applied in the direction of gas/liquid distribution and storage, mechanical equipment, fixed-capacity gas storage tanks, etc. It can solve the problems of natural gas ejection, safety accidents, etc., and achieves easy storage, easy disassembly, The effect of improving usability
Pending Publication Date: 2021-09-03
TIANJIN BAIYAN TECH CO LTD
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Problems solved by technology
[0004] When the existing LNG filling machine is in use, because the liquefied natural gas will automatically gasify under the atmospheric pressure, it is easy to eject the natural gas. Once it is ejected into the surrounding environment, it is easy to cause a safety accident
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[0025] 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. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0026] see Figure 1~5 , in an embodiment of the present invention, a safety device for preventing blowout of a LNG filling machine, including a liquid filling pipe 1 for liquid filling and a liquid filling pipe 1 installed at the end of the liquid filling pipe to prevent natural gas from blowing out The sealing cylinder 10 is slidably installed on the filling pipe 1, and the fixing cylinder 8 is welded and fixed on the filling pipe 1. The side of the fixing c...
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The invention discloses a safety device for preventing liquid spraying during liquid adding and gun withdrawing of an LNG dispenser, and relates to the field of dispensers. The safety device specifically comprises a liquid adding pipe for adding liquid and a sealing cylinder which is arranged at the end part of the liquid adding pipe and is used for preventing natural gas from being sprayed out, the sealing cylinder is arranged on the liquid adding pipe in a sliding manner, and a fixed cylinder is fixedly welded on the liquid adding pipe; and the side face of the fixed cylinder is fixedly connected with one end of a first spring arranged on the liquid adding pipe in a sleeving manner, the other end of the first spring is fixedly connected with the side face of the sealing cylinder, and a limiting ring is integrally formed and fixed to the end, located in the fixed cylinder, of the liquid adding pipe. According to the safety device, through the structural design of the sealing cylinder, in the liquid adding process, the natural gas is effectively prevented from being sprayed to the body of a worker, and use is safe.
Description
technical field [0001] The invention relates to the field of gas dispensers, in particular to a safety device for LNG gas dispensers, which is used to prevent spraying liquid by withdrawing a gun after adding liquid. Background technique [0002] As a means of transportation, automobiles emit a large amount of air pollutants such as carbon, nitrogen, sulfur oxides, hydrocarbons, and lead compounds every day. They are important sources of air pollution and have serious consequences for human health and the ecological environment hazards. Energy conservation and emission reduction is the eternal theme of the development of the automobile industry. Continuously strengthening energy conservation and emission reduction work has become an urgent need for my country's economic development to achieve sound and rapid development. [0003] The gas filling machine refers to the gas filling equipment that provides fuel to natural gas vehicles in the form of compressed natural gas. The ...
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IPC IPC(8): F17C5/02F17C1/00F17C13/00F17C13/08F17C13/12
CPCF17C5/02F17C1/00F17C13/002F17C13/08F17C13/12
Inventor 杨波张衡王静
Owner TIANJIN BAIYAN TECH CO LTD