US 7,922,790 B2 · Compressor device

Abstract

Compressor device having a compressor (2) with an inlet (3) and an outlet (4); a compressed air line (5) which connects the outlet (4) of the compressor (2) to a user network (6); a drier (7) which is incorporated in the compressed air line (5) and which includes at least two air receivers (13-16) which are each provided with an inlet (14) and an outlet (15) and which are filled with desiccant or drying agent, which air receivers (13-16) work alternately, such that while one air receiver (13) is drying the compressed gas, the other air receiver (16) is regenerated; and a blow-off device (28) for blowing off at least a part of the gas compressed by the compressor when the compressor (2) works in no-load or in partial load, characterized in that mechanisms are provided which make it possible to guide the part of the compressed gas which is blown off via the blow-off device (28) through the regenerating air receiver (13).

Claims10

Dependent claims

Method for drying compressed gas, comprising:

guiding a first fraction of compressed gas through a first air receiver (13) in order to regenerate the desiccant or drying agent therein provided by heat of the compressed gas, and then guiding said first fraction through a second air receiver (16) including desiccant or drying agent to dry said first fraction;
and
blowing off a second fraction of compressed gas into the atmosphere, said second fraction, before being blown off, being also guided through said first air receiver (13) together with the first fraction, to regenerate this first air receiver (13);
wherein said second fraction does not pass through the second air receiver prior to being blown off.

1 more element

Compressor system comprising:

a compressor (2) with an inlet (3) and an outlet (4);
a compressed air line (5) connecting the outlet (4) to a user network (6);
a drier (7) which is incorporated in the compressed air line (5) and which comprises at least two air receivers (13-16) which are each provided with an inlet (14) and an outlet (15) and which are filled with desiccant or drying agent, which air receivers (13-16) work alternately, such that while one air receiver (13) is drying the compressed gas, the other air receiver (16) is regenerated by heat of the gas compressed by the compressor;
a blow-off device (28) arranged to blow off at least a part of the gas compressed by the compressor when the compressor (2) works in no-load or in partial load, and means enabling the entire non-cooled output of compressed gas from the outlet of the compressor (2) to be first guided through the regenerating air receiver (13) for regenerating this regenerating air receiver before at least part of this compressed gas is blown off via the blow-off device (28) into the atmosphere;
wherein said enabling means comprises a plurality of connecting pipes (21-23-25) between the inlets (14-17) of the air receivers (13-16) and wherein the blow-off device (28) comprises a branch which is connected to one of said plurality of connecting pipes;
wherein a first connecting pipe (21) of the plurality of connecting pipes is provided with two stop cocks (22) and wherein the blow-off device (28) between these two stop cocks (22) is connected to the first connecting pipe (21);
and
wherein at least a second connecting pipe (23) of the plurality of connecting pipes is provided with two opposed non-return valves (24) working in opposite directions, so that the first and second connecting pipes (21-23) are bridged by a cooler (27) which is connected with an intake thereof between the non-return valves (24) of the second connecting pipe (23) and which cooler is connected with its output between the stop cocks (22) of the first connecting pipe (21).

5 more elements

Dependencies are inferred from the claim text.

Compressor device

Life of this patent

Compressor device

Life of this patent

Abstract

Claims10