Air dryer

Abstract

The invention discloses an air dryer which comprises a shell and an inner container, wherein a sealed cavity is formed between the shell and the inner container; the inner container is further filledwith a desiccant; an air inlet, an air outlet and a waste outlet are formed in the inner container; the air inlet is communicated with an air inlet channel; an electromagnetic valve a is fixedly mounted on the air inlet channel; an oil filter element is mounted on the air inlet channel; an oil collection channel is fixedly connected with the lower end part of the air inlet channel; an oil collection cup is connected with the lower end part of the oil collection channel; the oil collection cup is fixedly mounted at the lower end part of the shell. Due to addition of the oil filter element, fineoil droplets in the air can form large oil droplets on a filtering net when contacting the oil filter element, and is further discharged out from the oil collection channel, large oil droplets discharged out from the oil collection channel can be collected by the oil collection cup, and thus the environment outside the air outlet can be prevented from pollution of discharged oil.

Description

technical field [0001] The invention relates to a dryer, in particular to an air dryer. Background technique [0002] All kinds of air equipment on rail vehicles and ships in various countries have strict requirements on the moisture, oil and impurities in the compressed air. In order to ensure that the relative humidity of compressed air in each air equipment on rail vehicles can reach below 35%, it must be The air supply system must be equipped with drying facilities to remove a large amount of moisture in the air. [0003] At present, the drying facilities that use adsorbents for drying are mainly single-tower air dryers and double-tower air dryers. [0004] The double-tower dryer has two working towers, which work in two states at the same time, that is, drying and regeneration are carried out at the same time. The double plug valve is a key component to control the switching of the working conditions of the two working towers. In actual use, due to the damage of the i...

AI Technical Summary

Problems solved by technology

The double plug valve is a key component to control the switching of the working conditions of the two working towers. In actual use, due to the damage of the internal rubber of the double plug valve or the failure of the spring, it is easy to cause air leakage in the air dryer and a loud exhaust sound; and because It has a complex double-tower structure, and the maintenance workload is relatively large

[0005] Although the single-tower dryer has only one working tower, the structure is simpler than that of the double-tower dryer, but in order to realize the regeneration of the desiccant, the single-tower air dryer needs to be equipped with a regeneration air cylinder, a cut-off plug with exhaust, and an electro-pneumatic valve. And many other peripheral devices, occupying a large space

Images