Improved Process and Apparatus for the Utilization of the Heat of Waste Industrial Water and other Liquids.

摘要

1832. Liese, H. M. Jan. 26, 1910, [Convention date]. Heating liquids and gases. - In apparatus for utilizing the heat of waste hot liquids for heating liquids, gases, or vapours in order to avoid incrustation of the heat - exchanger by matter precipitated from the waste liquid, steam is generated from the liquid by reducing the pressure, and the heat-exchanging surfaces are arranged in contact with the steam. The apparatus shown in Fig. 1 consists of three evaporating chambers 4 containing heat-exchangers 7 and having conical bottoms which are connected by U-shaped pipes 5. Pipes 6 connect each chamber to the apparatus for reducing the pressure. The liquid is fed from a vessel 1, which is connected to the first chamber by a U-shaped pipe 2. In the modification shown in Fig. 2, the evaporating-chambers 13 are superposed in the form of a column. The conical bottom 14 of a chamber projects into the chamber below it and ends in a tube 15, which dips into the liquid the lower chamber. The steam collects in the upper part of each chamber and in projections 17 on the top chamber. The projections 17 are enclosed in a tank 16 to which the liquid &c. to be heated is fed. A pipe 20 conveys the liquid &c. from the tank into coils in the evaporating-chambers. Pipes 18 connect the chambers to the apparatus for reducing the pressure.