Improvements in Hot-water Heating Apparatus.
Year: 1899

page_text: Date of Application, 13th July, 1899-Accepted, 19th Aug., 1899
COMPLETE SPECIFICATION.
Improvements in Hot-water Heating Apparatus.
I, ANDERS BORCH RECK, of Gothersgade 155, Copenhagen, in the Kingdom of
Denmark, Captain, do hereby declare the nature of this invention, and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:
Pipes used for heating by hot water circulation have usually to be of rather
large dimensions, as the speed of the circulating water is comparatively low.
When the heating is required for buildings with several storeys the dimensions
of the pipes must be large and if the speed of the circulation is attempted to be
forced by intense heating, steam is generated in the pipes, causing considerable
difficulties.
This invention relates to means of producing steam generation in the rising
pipe so limited and regulated and in such a position that an increased speed of
circulation is obtained allowing the use of pipes having comparatively small
dimensions. The accompanying drawing shows by way of example a construction
for this purpose.
The boiler consists of two parts, a steam boiler E, containing the furnace and
provided with any suitable known draught regulator and the hot-water boiler B
through which run tubes 13 leading the products of combustion from the furnace
to the chimney also tubes B2 which form condensing surface for part of the
steam generated in the boiler E; the tubes B¹ might be omitted, the water in
the boiler B being heated solely by steam from the boiler E passing through
the tubes B².
From the hot-water boiler B rises the pipe N which near the top is provided
with a heater H from which the pipe M rises to the separator S. From the
separator $ the pipe N¹ conducts the hot water to radiators of ordinary con-
struction. The cooled return water passes by pipes N2 back to the bottom of
the boiler B.
From the steam boiler E a pipes leads steam to the heater H, and the over-
flow pipe f leads to the steam boiler E.
The heater H may be constructed in various ways, it may for instance consist
of two chambers separated by a perforated partition, the steam entering the
outermost, the water the innermost chamber. The apparatus acts in the follow-
ing way:
While steam is generated in the boiler E the water in the boiler B becomes
so far heated that a certain circulation is effected.
Steam from the boiler E passing by the steam pipe S to the heater H is there
condensed at the same time heating the water which passes through the heater H
to such a degree that steam is generated in the pipe M, increasing the speed
of the water and consequently causing a quicker circulation through the whole
system. In the separator $ the steam separates and becomes condensed the
water returning by the pipe f to the steam boiler E.
from S to the radiators and the cooled water returns to the boiler B. The
The hot water passes
greater part of the heat supplied to the radiators is imparted to the water in
Pris 17

page_text: the boiler B, whilst the heat given off by the steam forms only a small part of
the total heat, as it chiefly serves to effect quicker circulation.
If the temperature in the boiler B increases to such a degree that it approaches
that in the heater H a comparatively small amount of the steam will be condensed
in the steam tubes B³. The pressure will consequently increase in the steam
boiler, and act on the regulator and thus lessen the draught to the furnace. The
boilers B and E might each have a furnace, the draught regulator regulating
the draught for both. . As the overflow pipe f leads to the steam boiler E the
water level in the boiler remains always the same. The boiler might however
be fed with water, the pipe f leading to a discharge.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:-
Hot-water heating apparatus comprising a water heating boiler with flow and
return pipes for radiators, a steam boiler and a heater supplied therefrom, and
acting on the water in the upper part of the rising flow pipe, and a separator
communicating with the steam boiler, substantially as described.
Dated this 13th day of July 1899.
ABEL & IMRAY,
Agents for the Applicant.