Device for drying compressed air

 

The invention relates to systems compressed air. Device for drying compressed air contains input, output, and additional headers, three-flow heat exchanger pipe in pipe", the draining of condensate from the heating chamber, a fan for forced supply of atmospheric air to the heat exchanger. The heat exchanger is divided into two stages, interconnected through a rotary collectors, and the rotary collector-separator raw air and additional collector-separator equipped with mist eliminators. Each stage of the heat exchanger has a separate flow of cooling air. The technical result of the invention is to improve the drainage. 2 Il.

The invention relates to systems compressed air.

A device for drying compressed air, containing the input and output reservoirs-water separators, additional collector-separator, pipeline system, connected to the input collector-separator and piping the output collector-separator located inside the past and put in extra is atogo air in the outputs of the inlet piping wet compressed air and glands and ducts dried compressed air are located close to one another and drip moisture from the wet stream is largely captured by a stream of dry air.

The closest to the essential features of the claimed invention is a device for drying compressed air, containing the input and output manifolds, heat exchanger tube-in-tube, cooled by forced flow of the atmospheric air, additional collector, equipped with a tube sheet separating the cavity of the additional collector-separator into two compartments, the first of which in the course of the stream communicated its upper part to the middle part of the second output compartment (SU 901745 And 05.02.1982).

A disadvantage of the known device is a low degree of dehydration, because small drip of moisture falling from the subject to the dehydration of compressed air in the first downstream flow compartment, additional collector, partially captured by a stream of dry air and passed into the second compartment and then by pipeline to the output manifold, and the possibility of freezing the lower part of the heat exchanger.

This significant increase drainage.

The problem is solved by a device comprising input and output manifolds, three-flow heat exchanger according to the type of "pipe in pipe", forcibly cooled by atmospheric air, the draining with a heating chamber, a fan for forced supply of atmospheric air to the heat exchanger, additional collector-separator. The heat exchanger is divided into two unequal square stage, interconnected rotary manifolds for wet and dry compressed air, and a rotary collector to damp air, as well as additional collector equipped with mist eliminators. Each stage of the heat exchanger has a separate flow of cooling air.

Due to the fact that the desiccant heat exchanger is divided into two unequal square stage, equipped with mist eliminators, and the first during the flow stage area of the heat exchanger is greater than the second, and the fact that each stage of the heat exchanger is blown independent stream of cooling ambient air, improve the conditions for drying compressed air, reduces the danger of freezing of condensate in the bottom of the dryer due to reduction of heat transfer surface, appears and sudden change in atmospheric temperature, and when the change in the flow rate passing through the desiccant compressed air.

In Fig.1 presents a diagram of the device.

In Fig.2 - section Fig.1 along a-A.

The device has an input 1 and output 2 collectors compressed air, split tube sheet 2, the first 4 and second 5-speed heat exchanger pipe in pipe", rotary manifold wet air 6 after the first stage of cooling divided by the eliminator 7 into two parts. The upper part refers to the first stage heat exchanger, the lower the second. Additional collector is divided vertically tube sheet 8 to 9 wet and dry 10 compartments in the lower part communicating through a drip pan 11. In the lower part of the additional collector has a heated drive 12 condensate, where the moisture is periodically removed through the discharge device 13. The rotary manifold 14 informs the second 5 and the first 4 stages of the heat exchanger by dry air.

Output collector 2 and the dry compartment additional collector 10, and the input compartment 1 and the wet compartment additional collector 9 are separated by bridges 15 and 16.

Square heat exchangers of the first and second stages relate to each other as 1,0/1,0...1/0,65.

Device for drying compressed the space of the heat exchanger, educated inlet 17 and outlet 18 pipelines, enters the rotary collector humid air 6. In the heat exchanger, the moisture in compressed air is partially condensed. While large drops of condensate planted in tubes and fall by gravity into the reservoir 6, the wall flow down to the bottom and then on the bottom row of tubes in the condensate under additional header.

Small drops, following along with the compressed air in the rotary manifold 6, captured by eliminator 7, flow down the wall of the collector 6 and further to the bottom. The flow of air from the lower part of the rotary collector on microbio between the inlet 17 and outlet 18 pipelines should additional collector, and on the way subjected to additional cooling, resulting in the escalation of aerosols at the exit of the pipe are collected by the drip pan 11 on the border between 9 wet and dry 10 parts of additional collector. The dry air in the inner tube of the second stage 5 of the heat exchanger enters the rotary manifold 14 for dry air, rises up and through the inner tubes of the first stage of the heat exchanger falls in output collector 2 and mercuro.

Each step of forcibly cooled heat exchanger independent of the flow of the atmospheric air.

Claims

Device for drying compressed air containing input, output, and additional headers, three-flow heat exchanger pipe, draining with a heating chamber, a fan for forced supply of atmospheric air to the heat exchanger, wherein the heat exchanger is divided into two stages, interconnected through a rotary collectors, and the rotary collector of raw air and additional collector equipped with drip pans, with each stage of the heat exchanger is cooled by a separate stream of atmospheric air.

 

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