FR2477680A1 - Heat recuperator for domestic fireplace - has three interconnected coils forming combustion chamber and water jacket - Google Patents

Abstract

The heat recuperator consists of three interconnected tube bundles. It has a horizontal coil (1) over the hearth, a vertical ceil (4,5) at the back and an inclined coil (6,7) extending upwards and forwards as far as the centreline (8) of the fireplace. Additionally, the vertical and inclined coils have a V formation in plan to form a wrap around arrangement. The whole assembly is mounted on a frame (13,14) and is self-supporting. A water jacket (10) is mounted over the back of the inclined coil and connected into the water circuit at the bottom (11) and the top (12). Central heating water flows through the coils from A to B. The water is heated by conduction in the horizontal coil and by convection and radiation in the other coils.

Description

The object of the invention relates to a calorie sensor device constituting a hot water generator.

It constitutes a flame trap intended besides placed in a chimney, in order to recover the lost calories and to realize a boiler for heating by circulation of hot water
In known devices, tubular grids and various vertical heat recovery elements have already been used, but the collection was generally not sufficient to ensure efficient and constant heating.

The device according to the invention eliminates these drawbacks and makes it possible to increase the thermal efficiency of the chimney fires, while improving the draft by its installation on the existing hearth, without drilling or sealing while recovering all the calories and ensuring overheating.
It consists of the combination of tubular bundles positioned and oriented with a hot water bottle paired with the vertical and oblique coil career to form an omnidirectional sensor0
Sure attached drawings, given by way of nonlimiting example, of one of the embodiments of the object of the invention
Figure 1 represents the flame trap seen in elevation and in longitudinal section
Figure 2 is a cross section along line X, Y.

Figure 3 shows the device seen in perspective and as a whole
The flame trap figures 1, 2 3 is constituted by a tubular bundle or serpentine continuo
The sole 1 is formed by a horizontal coil with elements 2, 3 progressively decreasing starting from the axial part.

 The bottom comprises tubular elements superposed vertically 4, 5, extending by the beam positioned obliquely 6, 7 and others, covering the hearth up to its axis 8 approximately.

 This vertical part in its rectilinear sector 4, 5, and oblique 6, 7 is bent at an angle 9 of about 450 aiin to achieve an enveloping circuit. The sole grid conforms to this profile by its coils 2, 3.

On the outer facing of this oblique bottom coil is fixed a hot water bottle 10 connected by the branches II to its lower part, and 12 to its upper part to the carrier coil.

 The coil is structured by a mount 13,14 while being self-supporting.

 The grid 1 being preferably spaced from the bearing base of the chimney allows the use of an ashtray and activates the draft.

 The flames emitted by the hearth are reflected on the bottom plate formed by the hot water bottle making an enveloping bottom plate by its angulatflon and heat over their entire periphery all of the tubular bundles 6, 7 and other arrows C before s' dispose of through the exhaust pipe.

 thus all the calories emitted by the hearth on the grid 1, is captured as of its generation by the enveloping coil by its angulation 9, heating the heat-carrying fluid contained in the whole of the coil with total progressivity starting from the heating of the grid to lead to overheating of the vertical and oblique coils.

In addition, the arrow flames a lick a first time the coil 6, 7 and at the same time 'the hot water bottle 10. This gives an acceleration of the circulation of the water 1, 15 contained in the tubular elements and the hot water bottle 10. This produces an intermediate space 16 with double radiation and recovery, that is to say causing a heat exchange between the water layers contained in the coil and the hot water bottle.

By tilting the bottom, the flames are fully captured on their entire circuit, so that the heating is very rapid and achieved in a short time reduces its maximum heating.

This water admitted arrow A, and discharged arrow B after overheating is connected to radiators, the first of which may remain constantly open or even not have an intake adjustment in order to constitute a safety element, and to avoid the risk of 'boiling.

Boat traffic can also be ensured both by heat siphoning and with a conventional pump.

This device can form a homogeneous block, removable if necessary> and additionally mounted on feet or plinth
This is why, the shape dimensions and slides of the different elements may vary within the limit of the equivalents, as moreover the materials used for their manufacture, without changing the general conception of the invention which comes between described.

Claims (5)

 10 Calorie sensor device constituting a hot water generator intended for Besides placed in a chimney in order to recover the lost calories and to realize a boiler for heating by circulation of water with superheater characterized by the combination of horizontal coils (1), vertical (4, 5) and oblique (6, 7) with bending, a hot water bottle (10) paired and deviations connecting it to the oblique and bent coil.  20 Device according to claim 1 cara ctérisant in that the coil (1) forming grid or sole comprises elements of different lengths (2, 3) matching the bending (9) of the bottom coils. 50 Device according to claim 1, characterized in that the bottom coil is bent at an angle of about 450 or more, so as to form enveloping wings and has a vertical base sector (4, 5), straight0  40 Device according to claim 1 characterized by the fact that the straight bottom coil (4, 5) and vertical is extended by an oblique sector (6, 7) progressively covering the hearth Up to its median axis. 50 Device according to claim 1 characterized by the fact that the upper oblique sector is paired with a hot-water bottle (10) forming a bottom plate and determining an interlayer heating space with double radiation ensuring the heat exchange between the water layers ( ts 15) contained in the coil and in the hot water bottle (1 0).