JPS58179725A - Combustion apparatus - Google Patents

Abstract

PURPOSE:To heat-insulate the heating machine side, and to improve thermal efficiency on the heating machine side by providing a parting plate separating the heatng machine and a hot-water supply machine and preventing movement to the hot-water supply machine side of heat on the heating machine side in a two-boiler two-water type hot-water supply heating machine, etc. CONSTITUTION:A heat exchanger 2 for the heating machine is arranged on the left side and a heat exchanger 3 for the hot-water supply machine on the right side respectively in a hot-water supply heating machine proper 1, and exhaust cylinders 4 holding exhaust in common are set up to the upper sections of these heat exchangers. A fan 5 for exhaust and an air supply and exhaust top 6 are disposed to an upper section on the hot-water supply machine side of the exhaust cylinder 4. The parting plate 7 is mounted between said both heat exchangers 2, 3. Accordingly, combustion exhaust gas burnt by a burner 8 is heat-exhanged with a medium flowing in the heat exchanger 2, and combustion exhaust gas not heat-exchanged passes through the exhaust cylinders 4, and is discharged from the air supply and exhaust top 6. In this case, radiant heat from said heat exchanger 2 and radiant heat from the exhaust cylinders 4 do not escape to the heat exchanger 3 side by the action of the parting plate 7, and thermal efficiency is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a two-can, two-water type hot water heater or bath water heater.

Conventionally, for example, the thermal efficiency of hot water heaters was not high, which was not desirable from the viewpoint of energy conservation. Normally, the hot water supply side has a larger heat capacity than the ``1'' room side, and has the disadvantage that the thermal efficiency of the heater is low due to heat loss from the heater side to the water heater side.

The present invention aims to eliminate such conventional drawbacks and to increase thermal efficiency by simple means.

In order to achieve this objective, the present invention provides a hot water heater with:
A partition plate is installed to separate the heating machine and the water heater, and the heat from the heater side cannot be transferred to the water heater side from the top of the partition plate, and the air supply from the top of the air supply and exhaust on the water heater side is It is configured so that it passes through the hot water heater side and is supplied from below to the burner on the heater side.

With this configuration, combustion air passes through the water heater side from the air supply port at the top of the air supply/exhaust system, and is supplied to the burner from below on the heater side. The heat combusted by the burner is mixed with water passing through the heat exchanger.
Some of the heat is exchanged, and the remaining part is radiated into the hot water heater, and the heat moves upwards inside the machine due to the draft, but because there is a partition plate, there is no escape to the air supply opening, and the heat does not escape. Since it is used to heat the water in the heat exchanger again, it is possible to increase thermal efficiency.

An embodiment of the present invention will be described below with reference to FIG.

FIG. 1 is a schematic diagram of an embodiment of the present invention, in which a hot water heater main body 1 has a heater heat exchanger 2 on the left side and a water heater heat exchanger 3 on the right side. The -F section of the heat exchanger has an exhaust pipe 4 that shares exhaust gas. An exhaust fan 6 and an air supply/exhaust top 6 are arranged above the exhaust pipe on the water heater side. A cutting board 7, which is an embodiment of the present invention, is provided between the water heater heat exchanger 3 and the heater heat exchanger 2. 8 is a burner, 9 is a pump, and 10 is a tank.

The operation of the above configuration will be explained using FIG. 2.

The supply air is supplied from the air supply port of the supply/exhaust top 6, passes through the water heater side, and is supplied to the burner 8 from below the heater heat exchanger 2, which is indicated by the arrow shown in FIG. The combustion exhaust gas combusted in the burner 8 exchanges heat with the medium flowing in the heater heat exchanger. The combustion exhaust gas that does not undergo heat exchange is transferred to the exhaust stack 4.
and is discharged from the air supply/exhaust top 6 to the outside of the main body 1. At this time, there is heat radiation from the heater heat exchanger 2 and heat radiation from the exhaust pipe 4, but the heat exchanger 3 for the hot water heater shown in the present invention
Since there is a partition plate 7 between the heater heat exchanger 2 and the water heater heat exchanger 2, the heat does not escape to the water heater heat exchanger 3 side, and the heat raised by the draft is transferred from the air supply port of the air supply/exhaust top 6. In order to prevent the heat from escaping, the temperature of the atmosphere on the heater side is increased. Therefore, the heater heat exchanger 2 is in a preheated state, and the thermal efficiency is increased.

In this way, in a hot water heater, supply air for the heater is supplied to the heater from below through the water heater side, and heat loss due to heat radiation from the heater heat exchanger 2 and the exhaust stack 4 is absorbed from the air supply and exhaust top 6. By adopting a configuration that prevents heat from escaping, the heater heat exchanger 2 is kept warm, so that thermal efficiency can be increased. The present invention aims at increasing the above-mentioned thermal efficiency by using a simple partition plate 7.

Furthermore, this is possible not only for hot water heaters but also for hot water baths, etc., and can be applied to combined combustion machines such as heaters and baths where there is no need to worry about after-boiling.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a combustion device according to an embodiment of the present invention, and FIG. 2 is a sectional view thereof. 2... Heat exchanger for heater, 3... Heat exchanger for water heater, 4... Exhaust pipe, 7... Partition plate. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure

Claims (1)

[Claims] An exhaust stack is provided above the first heat exchanger and the second heat exchanger, and an air supply/exhaust top is provided above the exhaust pipe to supply combustion air to the combustor for the first heat exchanger. A partition plate is installed between the first and second heat exchangers so that air passes through the combustor for the second heat exchanger and is supplied from below the combustor for the first heat exchanger.
Combustion device installed between combustors for heat exchangers.