FR2483576A1 - Heat recuperator for open fireplace - has interconnected steel heat exchangers below, behind and above fire - Google Patents

Abstract

The fireplace (1) is fitted with stainless steel heat exchangers (3-6). The primary heat exchanger (3) is L-shaped, with a horizontal section, which contains the water inlet (7) under the fire and a vertical section at the back of the fire. Above the fire, under the hood (2) are three or more heat exchangers (4-6) arranged so that the hot products of combustion follow a turbulent path over them as they rise to the chimney. The waterways of the heat exchangers also have baffle plates to impart turbulent flow to the water which leaves the heat recuperator through an outlet.

Description

This "chimney layout" can either be inserted or fitted into an existing chimney, or be the main part of a new chenin-e. .- It produces, in addition to the radiated heat, the supply of hot water which can be used either in a central heating network or for domestic purposes.
Several models can be produced on the same principle, depending on the quantity of cloria to be obtained or the location available in the chimney, or the style of the environment.

The attached figure therefore gives a schematic view, a sectional view of an example of @ realization
In the hearth and the cenon (I) of the chimney and under the hood (2) is placed the assembly which consists of a number of intercommunicating tanks inside which the water circulates. In the example chosen, four reservoirs signed by (3-4-5-6) have been provided.

The main tank (3) rests on the hearth plate and covers part of the bottom of the chimney.- All these tanks are similarly designed in stainless steel and com
Bearing in the interior, baffles which will slow down the passage of water and will thus make it stay longer in the vicinity of the heat source, the fire being on the upper horizontal surface of the tank (3).

The water enters the tank (5) through the fitting (7). It is there that it starts to heat up or heat up if it is a Gep installation for some time in service and that c is the return water from the circuit0
From the tank (3) it can go to the tanks (4) and (5) then, coming from (4) or (5) it goes to (6) before leaving by (8) in the domestic circuit which ends in (7) the circuit being thus closed.

If the two parts of the reservoir (3) are at a right angle it is not the same for (4) - (5) and (e) whose two parts form a much more open angle (generally 45 @ @@@ @ e figure may vary depending on the location available in @@ @@@@ inée.)
@@, circulation of hot air is as follows:
Rises @ nt @ above the hearth it goes towards the barrel (I) in
nt @ ir @ ctement between the hood (2) and the tank (6),
between (4) and (5), between (3) and (4) and between (5) and (6).
from the last two, an overheated area forms which flows
@ by the top in the barrel.

 As mentioned above, we could envisage a large number of reservoirs which will succeed one another in a similar manner to that described above.

It is possible to cover a rertie of the tanks by a cover not shown in the attached figure, but which, preferably, will allow the flames to be clearly seen.

Claims (2)

 R E V E N D I C A T I O N S n in addition to direct heating, a corculation of hot water for all purposes. with hot gases, and slows the rise of these. I - Layout of an apparent fire chimney that can give  2 - Chimney arrangement according to claim N I characterized by the shape of the various tanks which may include several z8nes making between them a certain angle