| 摘要 |
A device for the recovery of the heat of the flue gases of boilers, internal combustion engines or other devices characterised by that it consists of a shell of cylindrical or rectangular or prismatic cross section within which one or several independant exchangers hydraulically connected between them are positioned in series, at an angle or parallel and at a distance from one another, such exchangers bearing three series of fined tubes the ends of which are welded to pipe bearing plates and which tubes are arranged along the length, parallel or at an angle to the direction of the flow of the flue gases inside the shell, where such flue gases are driven once or several times through the surface of the exchanger, by a combination of fixed or rotary gates, or a driven through the same directly to the chimney. |
