Electronic type CNG (Compressed Natural Gas) gas charging station sequence control panel

Abstract

The invention provides an electronic type CNG (Compressed Natural Gas) gas charging station sequence control panel. According to the charging scheme of a compressor that the priority level of a gas charging vehicle is the highest and then a gas storing device takes second place, the gas storing device is divided into three separated independent parts, and a three-stage sequence gas charging strategy is adopted, so that the gas charging speed of the gas charging vehicle is greatly increased, and the utilization efficiency of the gas storing device is improved. The electronic type CNG gas charging station sequence control panel comprises gas supply pipelines, an instrument gas pipeline and a control unit, wherein the gas supply pipelines comprise a main gas inlet pipeline connected with the outlet of the compressor, a high-pressure gas storage cylinder group gas inlet pipeline, a gas selling machine high-pressure gas feeding pipeline, a medium-pressure gas storage cylinder group gas inlet pipeline, a gas selling machine medium-pressure gas feeding pipeline, a low-pressure gas storage cylinder group gas inlet pipeline and a gas selling machine low-pressure gas feeding pipeline; and the main gas inlet pipeline is respectively connected with the high-pressure gas storage cylinder group gas inlet pipeline, the medium-pressure gas storage cylinder group gas inlet pipeline and the low-pressure gas storage cylinder group gas inlet pipeline through a ball valve and a check valve connected in sequence, and is further connected with a gas selling machine through a ball valve, a check valve and a pneumatic control valve.

Description

technical field [0001] The invention relates to the technical field of CNG gas filling stations, in particular to an electronic sequence control panel of a CNG gas filling station. Background technique [0002] CNG refueling station refers to a place that provides fuel to natural gas vehicles (Natural Gas Vehicle) and large CNG sub-station vehicles in the form of compressed natural gas (CNG). The gas in the natural gas pipeline generally undergoes pre-purification treatment to remove sulfur and water in the gas, and then the compressed natural gas is refueled by the compressor unit through the gas vending machine to refuel the vehicle. Compressed Natural Gas (CNG) is the most ideal alternative energy source for vehicles. After decades of development, its application technology has become increasingly mature. It has low cost, high benefit, no pollution, safe and convenient use, and has broad application prospects. [0003] The sequence control panel is an indispensable contr...

AI Technical Summary

Problems solved by technology

The sequence control panel in the prior art generally can only realize the three-level sequential refueling strategy, and cannot realize the priority supply for refueling vehicles

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