Crust breaking cylinder air throttle and testing device and testing method

Abstract

The invention relates to an air throttle, a testing device and a testing method, and provides a crust breaking cylinder air throttle and the testing device and the testing method. The crust breaking cylinder air throttle comprises a pressure-regulating valve, an air supply pipe, an external guide pipe, a two-position three-way solenoid valve and a corresponded power supply control line of the two-position three-way solenoid valve; the testing device comprises a main gas path and a branch gas path, a three-way B, a ball valve C and a three-way D are arranged on the main gas path along the forward flow direction of the gas path in order; the branch gas path comprises two ball valves, the crust breaking cylinder air throttle, a flowmeter and two compression gauges; and the testing method comprises an gas path leakage point test of the testing device. The crust breaking cylinder air throttle outputs the pressure of a crust breaking cylinder by two grades according to the requirement, the gas usage efficiency of the crust breaking cylinder can be greatly enhanced; the provided testing device can be conveniently connected to an gas feed branch pipe of each electrolytic aluminium groove crust breaking cylinder in parallel; and the testing method can measure and calculate the gas capacity after using the air throttle by the crust breaking cylinder.

Description

technical field [0001] The present invention relates to a damper and its testing device and testing method, in particular to a damping valve specially used for shelling cylinders, and the corresponding damping valve testing device and testing method. Background technique [0002] The air consumption of shelling cylinders in the electrolytic aluminum industry accounts for about 20% of the compressed air consumption of the entire factory, which has a crucial impact on the energy consumption of the entire factory. The energy saving of shelling cylinder is the key technology in the field of energy saving of pneumatic system in the electrolytic aluminum industry. Pneumatic systems play an important role in industrial automation due to their advantages of low cost, no pollution, easy maintenance, easy adjustment of output force and working speed, etc., but the energy consumption of shelling cylinders accounts for a large proportion of the total energy consumption of pneumatic syst...

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Problems solved by technology

[0003] The extension and retraction of the existing shelling cylinder at home and abroad adopt the same pressure output. The shelling cylinder needs to input high-pressure gas to break the surface crust, but it does not need high-pressure gas when retracting. Therefore, the same pressure is used to supply the shelling cylinder. The shell cylinder works, the consumption of compressed air is large, and the waste is serious

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