Heat recovery apparatus
AssigneeS. Tra. G. I. E. S.R.L.
InventorGabriele Comodi
Life of this patent
Estimating the term…
Abstract
The subject of the disclosed invention is a heat generator (3) for thermal energy production connected through a conveyor (4; 41, 4101, 42, 43, 4201, 4202, 4203, 4204, 4205) to one or multiple heat sources (2). The hot gases (F1, F2) generated by said one or multiple heat sources (2) are carried through said conveyor (4) to said heat generator (3) for recovery of their enthalpy content.
Claims20
Heat generator (3) for production of thermal energy including:
- at least one furnace (31), where combustion occurs,
- one heat exchanger (32;
- 3201, 3101, 3302, 3303), where combustion products are cooled, and
- a flue (36) for their discharge into the atmosphere, characterized in that
- it is connected via a conveyor (4;
- 41, 4101, 42, 43, 4201, 4202, 4203, 4204, 4205) to one or multiple heat sources (2), said conveyor (4) carrying hot gases (F1, F2) discharged by said one or multiple heat sources (2) to said heat generator (3) to recover enthalpic content.
Heat generator (3) according to the previous claim
- characterized in that
- said hot gases (F1, F2) discharged by said one or multiple heat sources (2) are combustion gases (F1), said combustion gases (F1) being sent via said conveyor (4;
- 41, 4101, 42, 43, 4201, 4202, 4203, 4204, 4205) to transfer heat to a part (3201) of said exchanger (32;
- 3201, 3101, 3302, 3303) that is therefore capable to be used only for cooling said combustion gases (F1).
Heat generator (3) according to any previous claim
- characterized in that
- it is a fire-tube boiler (3) for production of steam and/or hot water and/or diathermic oil, said heat exchanger (32;
- 3201, 3101, 3302, 3303) thus being a multi-pipe type (33), arranged in one or multiple fume circuits (3101, 3302, 3303) and designed to transfer heat to water (A) contained in the outer container (38), with each extremity of said container (38) being fitted with a pipe plate (3801) for insertion of said pipes (33) and said furnace (31).
Heat generator (3) according to the previous claim
- characterized in that
- said conveyor (4;
- 41, 4101, 42, 43, 4201, 4202, 4203, 4204, 4205), designed to carry said combustion gases (F1) from said one or multiple heat sources (2) to said heat generator (3), comprises:
- an outer part (41) connected to said one or multiple heat sources (2) designed to collect said combustion gases (F1)
- an inner part (42) devised to couple, at its opening (4201), to said pipe plate (3801) so as to intercept one or more pipes (33) of said heat exchanger (32;
- 3201, 3101, 3302, 3303), said one or more pipes (33) identifying the part (3201) of said heat exchanger (32;
- 3201, 3101, 3302, 3303) dedicated to cooling said combustion gases (F1)
Heat generator (3) according to the previous claim
- characterized in that
- said inner part (42) is capable of being shifted towards said pipe plate (3801), so as to intercept said one or more pipes (33), thus identifying the part (3201) of said heat exchanger (32;
- 3201, 3101, 3302, 3303) dedicated to cooling said combustion gases (F1), or is capable of being moved away from said pipe plate (3801), so that all fume pipes (33) of said heat exchanger (32;
- 3201, 3101, 3302, 3303) convey exclusively the products of the combustion occurring in said furnace (31) of said generator (3).
Heat generator (3) according to the previous claim
- characterized in that
- said inner part (42) translates axially with respect to said external part (41) in which it is partially inserted, said internal (42) and external parts (41) being joined through a telescopic coupling (5;
- 4101, 4205).
Heat generator (3) according to the previous claim
- characterized in that
- said telescopic coupling (5;
- 4101, 4205) has circular sections (4101, 4205), said inner part (42) thus being capable of rotation with respect to said external part (41), in which it is partially inserted.
Heat generator (3) according to any previous claim
- characterized in that
- the centre of said opening (4201) is on the same axis as said external part (41), said opening (4201) having such a section as to define, by effect of its rotation, said part (3201) of the heat exchanger (32;
- 3201, 3101, 3302, 3303) dedicated to cooling said combustion gases (F1).
Heat generator (3) according to any previous claim
- characterized in that
- said conveyor (4;
- 41, 4101, 42, 43, 4201, 4202, 4203, 4204, 4205) is housed in and passes through the inspection hatch (37) of said heat generator (3), said external part (41) of said conveyor (4;
- 41, 4101, 42, 43, 4201, 4202, 4203, 4204, 4205) being hermetically coupled to said inspection hatch (37).
Heat generator (3) according to any previous claim
- characterized in that
- said conveyor (4;
- 41, 4101, 42, 43, 4201, 4202, 4203, 4204, 4205) also comprises an interception organ (43) designed to exclude said one or multiple heat sources (2) from said heat generator (3), said interception organ (43) being specifically a butterfly valve located on said external part (41).
Heat generator (3) according to any previous claim
- characterized in that
- said part (3201) of the heat exchanger (32;
- 3201, 3101, 3302, 3303), intercepted and defined by said conveyor (4;
- 41, 4101, 42, 43, 4201, 4202, 4203, 4204, 4205), includes one or more pipes (33) of the second (3302) and/or third (3303) fumes circuit.
Heat generator (3) according to any previous claim
- characterized by
- being installed and in operation or already on the market, said inspection hatch (37), in which said conveyor (4;
- 41, 4101, 42, 43, 4201, 4202, 4203, 4204, 4205) is housed and passes being an auxiliary hatch to replace the standard hatch on said heat generator (3).
Heat generator (3) according to any previous claim
- characterized in that
- said hot gases (F1, F2) discharged by said one or multiple heat sources (2) also include cooling and/or ventilation air (F2) heated by cooling of various devices of said one or multiple heat sources (2), said cooling air (F2) being used to support combustion in said furnace (31).
Heat generator (3) according to any previous claim
- characterized in that
- said one or multiple heat sources (2) consist in engines and/or low efficiency heat generators and/or cooling batteries.
A conveyor (4;
- 41, 4101, 42, 43, 4201, 4202, 4203, 4204, 4205) for transport of hot gases (F1, F2) from one or multiple heat sources (2) to a heat generator (3) for recovery of enthalpic content, according to one or more of the previous claims.
Apparatus for heat recovery (1) including a heat generator (3) and one or multiple heat sources (2), said generator (3) and said one or multiple heat sources (2) being interconnected by a conveyor (4;
- 41, 4101, 42, 43, 4201, 4202, 4203, 4204, 4205), according to one or more of the previous claims.
Apparatus for heat recovery (1) according to the previous claim characterized in that it is a cogeneration apparatus (1), said one or multiple heat sources (2) being an engine (2) for electrical and/or mechanical power production.
Recovery method for a heat generator (3) of the enthalpic content of hot gases (F1, F2) discharged by one or multiple heat sources (2), according to any of the previous claims
- characterized in that
- said one or more pipes (33), which are designed to be intercepted by said conveyor (4;
- 41, 4101, 42, 43, 4201, 4202, 4203, 4204, 4205), and which define said part (3201) of said heat exchanger (32;
- 3201, 3101, 3302, 3303) dedicated to cooling said combustion gases (F1), are selected manually, the physical parameters characterizing said combustion gases (F1) being essentially stable over time, said physical parameters being specifically flow rate and/or temperature.
Dependencies are inferred from the claim text.