Instrument air dehydration anti-freezing device and control method thereof

Abstract

The invention belongs to the technical field of industrial instrument air, and discloses an instrument air dewatering and anti-freezing device and a control method thereof.In the instrument air dewatering and anti-freezing device, the upper end of a first absorber is connected with a heater through a pipeline, the heater is connected with a regeneration air adjusting valve through a pipeline, and the regeneration air adjusting valve is connected with the upper end of a second absorber through a pipeline; the lower end of the first absorber is connected with a first air inlet valve through a pipeline, the first air inlet valve is connected with a second air inlet valve through a pipeline, the second air inlet valve is connected with the lower end of the second absorber through a pipeline, and the first absorber and the second absorber are filled with absorbents. The problems that instrument air is prone to freezing and blocking and a conventional drying device is high in energy consumption are solved; the working process and the switching of the two absorbers are full-automatic, and manual operation is not needed. The absorbent is wide in selection range, can be replaced according to actual requirements and is suitable for various working conditions. A micro-heating normal-pressure regeneration process is adopted, the heating power is small, the regeneration gas amount is adjustable, and gas loss is small.

Description

technical field [0001] The invention belongs to the technical field of industrial instrument air, and in particular relates to an instrument air dehydration and antifreeze device and a control method thereof. Background technique [0002] At present, in the industrial production process, when the industrial equipment that needs to be equipped with an instrument air system is used, when the ambient temperature is lower than zero degrees Celsius, the problem of freezing will occur, which will be more serious in the north. Frozen blockage will cause equipment to be deactivated or even stop production. Repeated occurrences of this failure will bring great trouble to industrial production and residents' life. This problem has always been pouring hot water into the instrument air pipeline or adding companions to the entire pipeline. The heat belt is solved or equipped with a cold dryer. This method brings a lot of inconvenience to users and station equipment operators and also con...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of industrial production, when the ambient temperature is lower than zero degrees Celsius, the industrial equipment that needs to be equipped with an instrument air system will have a freezing problem, which will be more serious in the north

Freeze blockage will cause the equipment to stop working or even stop production. Repeated occurrences of this fault will bring great troubles to industrial production and residents’ lives. This problem has always been caused by pouring hot water into the instrument air pipeline or installing companion valves for the entire pipeline. Troubleshooting or supporting cold dryers, this method brings a lot of inconvenience to users and station equipment operators and also consumes a lot of power, especially in stations with more equipment and areas with colder winters

[0003] Through the above analysis, the existing problems and defects of the existing technology are as follows: the existing technology brings a lot of inconvenience to the users and station equipment operators, and consumes a lot of power at the same time

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