SU8506A1 - Two-stage steam engine preheater consisting of steam preheater and preheater for flue gas heat - Google Patents

Description

This device provides for a two-stage, - exhaust steam and additionally flue gases, - heating of the feed water in tubular heaters (the use of which for these purposes is well known), which, in addition to the high feedwater temperature, gives a partial release of this water from various scaling salts Which, attacks under the influence of a high degree of heating within the heater itself, will not fall into the boiler in this way. In addition, a more uniform, and compared to the existing heaters, the load on the locomotive axles is expected due to the location of the entire preheater symmetrically on both sides of the locomotive - along its boiler.

In FIG. 1 depicts a steam preheater; FIG. 2 - gas heater; FIG. 3 is a general layout of a two-stage preheater.

The steam heater М-М (the general scheme - fig. 3) consists of two symmetrically located but to the sides of the tubular locomotive

elements B (Fig. 1) with removably inserted pipes 10 and return pipe X. The heater with gases 5-5 (Fig. 3) is placed in special heat pipes A located in the lower part of the boiler and consists of two sets of pipes 12 (Fig. 2 ), put in the end boxes, and return pipe CC. B, the tubular elements B-B (Fig. 3) pump the pump or injector B through pipes 1 through the throat 1 to pump water from the tender. After working the steam supplied through the pipes with - to the necks in, the passage through the pipes 10 (FIG. 1) heats the water in elements BB and the return pipe X to the atmosphere. The water from chambers M (fig. 3) is warmed through necks 2 through pipes 3 enters chambers 4 and 5 of pipe 12 (fig. 2) with gases 5, located in two heat pipes A-A; here there is an additional heating with gases to a temperature close to the temperature of the water in the boiler, and the release of part of the salts that form scaling. From the gas preheater 5 hot water comes out through the return pipes and the orifices 6,

and through pipes 7 (fig. 3) enters the boiler ..:

In order to prevent the preheater 5 from being strongly heated with gases, the water-tube elements are separated from the furnace grate at some distance (2-2Va m.). The other ends of the elements protrude from the flame tube to the smoke box and, therefore, the elements are heated by gases, passing through the heat pipes and the gases in the smoke box.

The subject of the patent.

A two-stage steam engine preheater consisting of a steam preheater and a preheater due to the heat of flue gases, characterized in that

a steam heater consisting of a row of Yuibbrat pipe (Fig. 1 and the general scheme), removably inserted into the tubular elements B, is located symmetrically on both sides of the locomotive - along its boiler, and the gas preheater intended for sequential heating of water to a higher temperature ,, consists of (Fig. 2) pipe 12, the return pipe of the Criminal Code and boxes on. the ends of the pipes and inserted into special ones - located in the lower part of the boiler are the fire tubes A (general scheme), which arrangement of parts of the heater aims at a more uniform load of the axes of the locomotive, and a high degree of heating is the selection of scale within easily detachable heaters.

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