Twin-tower dryer

Abstract

The invention relates to a twin-tower dryer. The twin-tower dryer comprises a first drying cylinder (1) and a second drying cylinder (2), wherein a first pressure indicator (3) is arranged at the top of the first drying cylinder (1); and a second pressure indicator (4) is arranged at the top of the second drying cylinder (2). Compared with the prior art, the twin-tower dryer disclosed by the invention has the beneficial effects that the structure is compact, and the size is smaller under the same use parameters. The pressure indicators are separately arranged at the tops of the twin-tower drying cylinders and can be used for observing in real time and conveniently identifying the working conditions of the twin-tower drying cylinders, so that safe disassembly and replacement can be realized when the twin-tower drying cylinders need to be maintained. Heaters are arranged above exhaust valves of the twin-tower drying cylinders, so the twin-tower dryer can be normally used at the low temperature of -40 DEG C; and pressure sensors are arranged on the twin-tower drying cylinders and can be used for monitoring, judging and feeding back whether information about a work switching mode between the first drying cylinder and the second drying cylinder is normal or not in real time, so that alarming is timely sent out and faults are effectively eliminated.

Description

technical field [0001] The invention relates to a drier, in particular to a double-tower drier. Background technique [0002] In the air source system of rail vehicles, the air output by the compressor contains a lot of water vapor, so it needs to be dried before entering the air storage tank, so as to provide clean and dry compressed air for the subsequent system. However, if the function of the dryer fails, the entire air path will be mixed with a large amount of water, which will seriously affect the normal work of various structural components that need air, such as brake systems, bagpipes, door systems, suspension systems, etc. Will corrode some parts. If freezing occurs at low temperatures below zero, it will cause greater risks and safety hazards to these components and systems. In addition, the dryers currently used in vehicles have many disadvantages in terms of logic control, such as dryer work efficiency, service life, air resistance, etc., which do not meet the...

AI Technical Summary

Problems solved by technology

However, neither the A tower nor the B tower of this utility model is equipped with a pressure indicator, neither can observe in real time and conveniently identify the working conditions of the left and right towers, nor can it guarantee that the left and right towers can be safely disassembled and replaced when maintenance is required.

As a result, when the left and right towers are switched or when the drying tower needs maintenance, the pressure in the left and right towers cannot be monitored in real time, which is not conducive to switching and maintenance operations

At the same time, the utility model does not install heaters and temperature sensors next to the two exhaust valves of the left and right towers, resulting in low efficiency of the dryer

Furthermore, this utility model does not install pressure sensors at the inlet valves of the left and right towers, so it cannot monitor, judge, and feed back information on whether the switching mode of the left and right towers is normal, and cannot send an alarm message in time when the switching of the left and right towers fails

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