EP3021065A1

EP3021065A1 - Heat recovery unit

Info

Publication number: EP3021065A1
Application number: EP14822445.4A
Authority: EP
Inventors: Jose Luis CORDÓN URBIOLA
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-12
Filing date: 2014-07-10
Publication date: 2016-05-18
Also published as: EP3021065A4

Abstract

Heat recovery system which comprises a tubular block (1) with various pipe sections (2), attached vertically and horizontally, spaced within an equidistant distance and integrated in a prismatic covering. The recovery system includes at its front side a deflector support and at the rear another deflector support (4.1), in an inverted position, for the outlet of the same. The recovery system is set to be installed in series in any type of boilers, with the deflector support of gas inflow facing the fume exhaust ducts, recovering the heat of the evacuated gases and passing them through various levels of pipe sections, transferring it into the circulating water, through the hot water circuit both for human consumption and for the heating system, needing less energy input and saving, therefore, a large amount of fuel.

Description

This product description refers, as its title implies, to a heat recovery system, characterised by a tubular block made up of several pipe sections, defining various levels for the in- and outflow of gases generated by the combustion, attached vertically and horizontally, spaced within an equidistant distance and integrated in a prismatic covering, creating between them, a closed water circuit, incorporating at the front a deflector support for the gases inflow and in its backside another deflector support, in an inverted position, for the outlet of the same. The heat recovery system remains installed in series, in all types of boilers, with the deflector support of gas inflow facing the fume exhaust ducts, recovering the heat from the evacuated gases and passing them through various levels of pipe sections and transferring it into the circulating water, through the hot water circuit both the one for human consumption and the one for the heating system, needing less energy input, and saving, therefore, a large amount of fuel.

Background of the invention

Nowadays this type of devices for the recovery of the heat generated by the combustion gases are already known, such as, in the Spanish utility model U0266166 , where a device that recovers gases from a boiler installed in line is shown, through an ascending, descending and ascending route, crossing at the same time two groups of refrigeration units, absorbing the calories and coming out at a temperature between 15° and 30°.
Another form is shown in the Spanish utility model U201000063 , where it is described a heat recovery system through a heating coil, specially adapted for chimneys.
Looking for other solutions, in the utility model U201330243, it is described a heat recovery system module suitable for being incorporated in the thermic boiler tube or any other device generating fumes and whose installation allows to preheat a fluid, preferably the water from a heating circuit, taking advantage of the heat emitted by such fumes, being such module of the type which comprises a tubular body of two concentric liners determining the main passage for the heat and a peripheral camera for the fluid flow.

Description of the invention

With the aim of providing another solution, a heat recovery system has been devised, object of this invention, characterised for comprising a tubular block made up of several pipe sections, defining various levels for the in- and outflow of gases generated by the combustion, attached vertically and horizontally, spaced within an equidistant distance and integrated in a prismatic covering, creating between them, a closed water circuit, incorporating in its front side a deflector support for the gas inlet and in its backside another deflector support, in an inverted position, for the outlet of the same.
The heat recovery system is installed in series, in any type of boiler, with the deflector support of gas inflow facing the fume exhaust ducts, recovering the heat of the evacuated gases and passing them through various levels of pipe sections, and transferring it into the circulating water, through the hot water circuit both for human consumption and for the heating system, needing less energy input and saving, therefore, a large amount of fuel.
The heat recovery system submitted is environmentally-friendly and it respects the environment as it reduces the emission of pollutant particles in the evacuated fumes, considerably increasing the efficiency of a boiler.
The tubular block requires absolutely no maintenance; however, it can be removed for cleaning or replacement.
The prismatic covering, comprises two lateral sides folded at 90° and two front sides, at the front and rear, with drills in the clamping of their ends with the corresponding deflector support and emptied matching the multiple pipe sections, which remain fitted at its ends, forming an inner camera intended for the water circuit, adding at the top and at the bottom a hole that enables the connection of the circuit of water of the boiler with the inner camera of the tubular block.
The deflector support at the front and the deflector support at the rear, are equal but mounted in an inverted position, comprised by a rectangular case with side reinforcements, with two semi-circular sections attached with a circular opening, adding in its opposite side a tie plate at the front with holes at its ends, matching the closure front ones of the tubular block, constituting on its inner side two semi-circular compartments, to enable the route of the gases, and a rectangular cavity matching the circular opening. The gases and fumes trapped by the heat recovery system enter through the circular opening of the deflector support at the front, directed towards the semi-circular compartments directing them, entering and exiting alternatively through the different levels of pipes of the tubular block, and the semi-circular compartments of the deflector support at the rear, spreading warmth to the circuit of water of its inner camera, heating the circulating water promptly, expelling outside the gases free of pollutant particles through the opening of gas outlet of the deflector support at the rear.

Advantages of the invention

The heat recovery system submitted, provides the great advantage of being installed in series on any type of boiler, matching the fume extraction pipe, allowing to recover the heat of the evacuated gases transferring it to the circulating water, in the hot water circuit both for human consumption and for the heating system. Another significant advantage is that the preheating of the water thus carried out allows less energy input to maintain the desired temperature achieving a significant saving of fuel.
Other equally important advantage is that the heat recovery system submitted is environmentally-friendly and it respects the environment as it reduces the emission of pollutant particles in the evacuated fumes, considerably increasing the efficiency of a boiler.
And, in conclusion, as an advantage, we can add that the route of the gases is performed through different levels of pipes incorporated in the tubular block dissected by the semi-circular compartments of the deflector supports, heating the water of the circuit promptly.

Description of the figures

For a better understanding of the object of this invention, in the annex attached it has been represented a preferential practical implementation of the same.

Figure -1- Shows a perspective view of the heat recovery system.
Figure - 2- Shows a plan and elevation view and profile of the heat recovery system, specifying in the profile view in section to show the route of the gases.
Figure - 3- Shows a perspective view of the tubular block.
Figure - 4- Shows a plan and elevation view and profile of the tubular block.
Figure - 5- Shows a perspective view of the deflector support at the front.
Figure - 6- Shows a perspective view of the deflector support at the rear.

Preferential implementation of the invention

The heat recovery system, object of this invention, is characterised for comprising a tubular block (1) with various pipe sections (2), attached vertically and horizontally, spaced within an equidistant distance and integrated in a prismatic covering, incorporating at the front a deflector support (4) for the gases inflow and in its backside another deflector support (4.1), in an inverted position, for the outlet of the same.
The prismatic covering, comprises two lateral sides (5) folded at 90° and two closure front ones (6) at the front and rear, incorporated emptied (7) matching the different pipe sections (2), which fit at their ends, creating an inner camera (8) intended for the water circuit, adding at the top and at the bottom a hole (9) that enables the connection of the circulating circuit of water.
The deflector support at the front (4) and the deflector support at the rear (4.1), are equal but they are in an inverted position, with a rectangular case with side reinforcements (10), with two semi-circular sections (11) attached with a circular opening (12), adding in its opposite side a front plate (13) with holes at its ends, matching the closure front ones (6), for the clamping with screws (3), constituting on its inner side two semi-circular compartments (11.1), matching the semi-circular sections (11), and a rectangular cavity (14) matching the circular opening (12).
The gases and fumes trapped by the heat recovery system, enter through the circular opening (12) of the deflector support at the rear (4) directed towards the semi-circular compartments (11.1) directing them, entering and exiting alternatively through different levels of pipes (2), of the tubular block (1), and the semi-circular compartments (11.1) of the deflector support at the rear (4.1), spreading warmth to the circuit of water of its inner camera (8), heating the circulating water promptly, expelling outside the gases free of pollutant particles through the opening of gas outlet (12) of the deflector support at the rear (4.1).

Claims

Heat recovery system, characterised for comprising a tubular block (1) with various pipe sections (2), attached vertically and horizontally, spaced within an equidistant distance and integrated in a prismatic covering, incorporating at the front a deflector support (4) for the gases inflow and in its backside another deflector support (4.1), in an inverted position, for the outlet of the same.
Heat recovery system, according to claim 1, the prismatic covering comprises two lateral sides (5) folded at 90° and two closure front ones (6) at the front and rear, incorporated emptied (7) matching the different pipe sections (2), which fit at its ends, creating an inner camera (8) intended for the water circuit, adding at the top and at the bottom a hole (9) that enables the connection of the circulating circuit of water.
Heat recovery system, according to claim 1, characterised by the deflector support at the front (4) and the deflector support at the rear (4.1), being equal but located in an inverted position, with a rectangular case with side reinforcements (10), with two semi-circular sections (11) attached with a circular opening (12), adding in its opposite side a front plate (13) with holes at its ends, matching the closure front ones (6), for the clamping with screws (3), constituting on its inner side two semi-circular compartments (11.1), matching the semi-circular sections (11), and a rectangular cavity (14) matching the circular opening (12).