JP2011069596A - Heat exchanger utilizing exhaust heat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat exchanger which is retrofitted to a conventional type water heater and an exclusive water heater, reducing fuel consumption and CO2 discharge. <P>SOLUTION: The heat exchanger utilizing exhaust heat is intended to reduce fuel and CO2 discharge by attaching the heat exchanger to an exhaust blow out port of a conventional type bath boiler with a water heater, an exclusive water heater, or the like, and utilizing exhaust heat in combustion operation. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  In the present invention, a heat exchanger using a water pipe system (metal pipe, etc.) is attached outside the exhaust port from which hot exhaust gas from a conventional hot water bath with a hot water heater or a dedicated hot water heater or the like is discharged, and the hot exhaust gas is reused. The purpose of this is to reduce hot water fuel energy, and at the same time increase the efficiency of hot water supply and contribute to CO2 emission reduction.

  In conventional hot water baths and dedicated water heaters, the heat exchanger inside the water heater urges the generation of hot water by the combustion operation inside the water heater. The problem of environmental destruction due to increased CO2 occurs.

  The present invention uses a high-temperature exhaust gas due to useless fuel, prevents an increase in CO2 emission, and uses a heat exchanger utilizing exhaust heat as a new method for tackling global environmental problems.

  The exhaust heat utilization heat exchanger of the present system that achieves the above object can be easily and inexpensively installed outside the exhaust port by retrofitting a conventional hot water bath with a hot water heater and a dedicated hot water heater.

  A heat exchanger using exhaust heat with a metal structure is housed in a metal box, and the heat exchanger absorbs high-temperature exhaust gas energy to promote generation of hot water. In this process, a hot water generation process with no CO2 emission from fuel is obtained.

  When the hot water is discharged, the hot water flows into the water heater body and is reheated by the combustion burner inside the water heater. Since it is already warmed by an external heat exchanger, the fuel of the combustion burner can be quickly achieved at the hot water supply set temperature with the following consumption.

  Since this exhaust heat utilization heat exchanger generates drain water due to latent heat, it is necessary to construct a drainage treatment in a side groove by piping.

  In the present invention described above, the heat exchanger recovers the discarded heat energy, and the consumption of hot water supply energy is greatly reduced. This fuel consumption reduction is less than about 10% in hot water operation, but the daily consumption is greatly reduced by daily accumulation, and the fuel cost is reduced. Moreover, CO2 emission is reduced in the environmental problem in the prevention of global warming, and a synergistic effect with fuel consumption reduction is exerted greatly.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1-1 is a conventional water heater body. The outside of the two exhaust ports of the water heater serves as a mounting portion for the exhaust heat utilization heat exchanger.

  Fig.2-3 is a heat exchanger, which is a main part that recovers high-temperature exhaust heat and reduces hot water operation fuel of the main body, and is a pipe that is connected to a 4 water supply inlet connection and a 5 water supply pipe connection.

  FIG. 3-6 is an exhaust heat utilization heat exchanger cover. This cover has a structure in which the heat exchanger in FIG. 2 is housed and becomes an exhaust heat utilization heat exchanger as a whole. The heat exchanger exhaust port has a structure in which the size of the hole is limited for heat storage inside the heat exchanger.

  FIG. 4 is a perspective view of the back side of the heat exchanger cover, and 8 openings are attached to the 2 exhaust ports. Exhaust heat is blown into the cover from the back side 8 openings.

  FIG. 5 is a view in which an exhaust heat utilization heat exchanger is attached to a conventional hot water heater, and is a completed configuration diagram of this function by combining four water supply inlet ties and five water pipe ties.

Industrial use of this exhaust heat heat exchanger is for commercial use, hot water supply for large, medium and small restaurants, for industrial use, hot water supply for food manufacturing and processing, hot water use for large and small accommodation facilities, and the largest household The use of hot water and the accompanying fuel consumption are enormous. The exhaust heat heat exchanger is a device that can sufficiently cope with this enormous fuel reduction, and industrial applicability is not limited to Japan, but is spread all over the world.
In addition, this production will produce new production logistics, sales distribution, significant economic effects and employment promotion effects.

  FIG. 3 is a perspective view of a conventional water heater before the exhaust heat utilization heat exchanger is attached.   It is a structure perspective view of a heat exchanger with an internal view of a heat exchanger main part using exhaust heat.   The heat exchanger is stored in the cover of the exhaust heat heat exchanger.   An opening is provided in the above-described storage cover rear side perspective view.   It is a perspective view in which a heat exchanger using exhaust heat is mounted on a conventional water heater, and is a completed view of this device.

DESCRIPTION OF SYMBOLS 1 Conventional water heater 2 Conventional water heater exhaust 3 Heat exchanger 4 Water supply inlet knot 5 Water pipe knot 6 Heat exchanger cover 7 Heat exchanger exhaust 8 Heat exchanger back side opening 9 Water heater water supply knot 10 Water pipe 11 Drain water knot

Claims (1)

  An exhaust heat heat exchanger that aims to reduce fuel consumption and CO2 emissions by using exhaust heat during combustion operation by attaching a heat exchanger to the exhaust heat outlet of a conventional water heater with a hot water heater and a dedicated water heater.

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