SU860839A1 - Adsorber for drying compressed air - Google Patents

Description

one

This invention relates to devices for drying compressed air.

A known adsorber for drying compressed air includes a housing with an adsorbent disposed inside it and pipes with valves that are connected to housing 1.

A disadvantage of the known construction is that after removing moisture from the adsorbent, adsorption properties of the adsorbent require cooling of the adsorbent.

However, the cooling of a fixed bed with air at a temperature of the surrounding medium (atmosphere) or with the temperature of the air leaving the adsorber, in which the compressed air is dried from moisture (for the case when part of this product air is taken up for regeneration of the adsorbent, including cooling ), takes a lot of time. The duration of the processes leads to the excess of the regeneration time over the operation time of the adsorber, which drains the air, until the moment of its saturated adsorbent. Therefore, it is necessary to either get dry product air or stop air drying, waiting for the end of regeneration, to interrupt the further technological process of using food air (or at least slow it down).

For sokrashein regeneration time use regeneration air cooling in special refrigeration units, which are installed before) the flow of air into the cooled: given adsorber. This leads to an increase in energy consumption for cooling the regeneration air.

The purpose of the invention is to accelerate the process of regeneration of the adsorbent by reducing its cooling time.

This is achieved by the fact that an adsorber for drying compressed air, including a housing with an adsorbent located inside it, and pipelines with valves, connected to the corns. provide installed in the layer of adsorbent horizontal perforated nozzles and 20 cameras with movable valves n valves located in the layer of adsorbent between the nozzles. Suitably, the nozzle stacks are made of heat conducting material.

25 In the drawing, an adsorber for compressed air drying is shown, along with an incision.

The adsorber consists of a housing 1 with an adsorbent 2 located inside it, pipelines 3-6 with shut-off members

7-12. The adsorber is provided with horizontal perforated nozzles 13 and a chamber 14 with movable valves 15 and 16 and valves 17 installed in the adsorbent layer 2 located in the adsorbent layer between the nozzles 13.

The adsorber works in the following manner.

Compressed product air enters through conduit 3 to the adsorber for drying, passes through layers of adsorbent, which gives moisture, and perforated holes in the wall of x 13 nozzles 13. then enters pipe 4 and directs it for use by the consumer. During this period, the inlet and outlet openings of the nozzles are closed by valves 15 and 16.

After the adsorbent is saturated with moisture, the flow of air oeyniae Moro is stopped and hot air is supplied through pipeline 3 to remove moisture from the adsorbent through pipeline 4. Gate valves 15 and 16 are still closed.

After the removal of moisture nz adsorbent gate valves 15 and 16, depart from ep. the locking bodies 7 and 8 open. Valves 9-12 should be closed.

Upon completion of the removal of moisture from the adsorbent, the valves 15 and 16 depart from the seat, the locking bodies 7 and 8 are opened. The locking bodies 9-12 must be closed. A portion of the dry air product, from another adsorber, is directed through conduit 5 to chamber 14. Air enters the nozzle 13 from chamber 14, where as a result of adiabatic expansion, the air cools and goes to another part of chamber 14, and then goes through conduit 6. A part of the cooled the air nozzles enter the chamber 14 not through the outlets of the EPL, but through the perforations in the walls of EPL 13, the oil of the adsorbent and the valves 17, thereby cooling the adsorbent.

With a specific implementation of the adsorber, a different arrangement of nozzles is possible, including as shown in the drawing (dried air passes through the adsorber perpendicular to the longitudinal axis of the nozzles).

It is possible to carry out an adsorber with sonlys whose longitudinal axes are parallel to the direction of movement of the air being dried, while combining 5 pipelines 3 with 5 and 4 with 6 is permissible.

The adsorber nozzles can be made flat (and occupy the entire cross section of the adsorber) or axisymmetric.

Using adsorbers for cooling the regenerated adsorbent nozzles with perforated heat-conducting walls allows, due to an increase in the differential temperature between the cooling air and the cooled adsorbent, this cooling time is reduced without creating conditions for increased abrasion of the adsorbent and, accordingly, without increasing dust in the product air. Reducing the cooling time of the adsorbent reduces the time to stop the process of drying compressed product air after the adsorbent has reached the highest saturation level or can completely eliminate this stop.

Forms in LA and inventions

Claims (2)

1. Adsorber for yushki compressed air. ha, including a housing with an adsorbent located inside it, and pipelines with shut-off valves connected to the housing, so that The adsorber is equipped with horizontal perforated nozzles and a chamber with movable valves and valves installed in the adsorbent layer, in the adsorbent layer between the nozzles, in order to accelerate the regeneration process of the adsor5 bayte and reduce its cooling time. 2. The adsorber according to claim 1. characterized in that the walls of the nozzles are made of heat-conducting material. Sources of information taken into account in the examination 1. Serpionova, Ye.N. Industrial adsorption of gases and vapors. M., 1969, p. 49.