Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
139 words
A system for heat recovery, comprising a combustion machine and a compressor for the combustion air, in which part of the waste heat contained in the combustion gases after their expansion in the machine is transferred with recovery means into the combustion air flow, characterized in that said waste heat is tranferred into the combustion air flow (30-33) before its entry into the compressor (4,40), in that a cooler (6) is installed in the combustion air flow (34) after having left the compressor and before enering into the combustion machine (2,3,3a), in that ahead of the inlet (33) into the compressor, water (8,8') is introduced into the preheated and/or to be preheated combustion air flow (30,32), and in that in the cooler (6) the air-water mixture (34) is cooled, whereby at least part of the water vapor condenses (10,11).
Claim 2
Independent Claim
139 words
A system for heat recovery, comprising a combustion machine and a compressor for the combustion air, in which part of the waste heat contained in the combustion gases after their expansion in the machine is transferred with recovery means into the combustion air flow, characterized in that said waste heat is tranferred into the combustion air flow (30-33) before its entry into the compressor (4,40), in that a cooler (6) is installed in the combustion air flow (34) after having left the compressor and before enering into the combustion machine (2,3,3a), in that ahead of the inlet (33) into the compressor, water (8,8') is introduced into the preheated and/or to be preheated combustion air flow (30,32), and in that in the cooler (6) the air-water mixture (34) is cooled, whereby at least part of the water vapor condenses (10,11).
Claim 3
Dependent Claim
51 words
System according to claim 1, characterized in that the recovery means (7) for transferring the waste heat contained in the combustion gases (38) into the combustion air flow (33) comprise a heat exchanger (13), fitted with means to introduce water into the inlet air flow in and before said heat exchanger.
Claim 4
Dependent Claim
38 words
System according to claim 1 or 2, characterized in that the recovery means (7) comprise a recirculation conduct (14) between the exhaust duct (38) and the inlet duct (33) for recirculation of a part of the combustion gases.
Claim 5
Dependent Claim
26 words
System according to one of the preceding claims, characterized in that the compressor (4,4a, 4b) and the combustion machine (1) form together a gas turbine (2,3,4).
Claim 6
Dependent Claim
34 words
System according to claim 4, whereby the compressor comprises at least two stages, characterized in that after the first compressor stage (4a) the cooler (6) is installed followed by the next compressor stage(s) (4b).
Claim 7
Dependent Claim
39 words
System according to claim 1, 2 or 3, characterized in that the combustion machine (1) is formed by a reciprocating internal com- - bustion engine (2,3a) and in that the compressor (4) serves to pressure charge of said engine.