JPS6227336B2 - - Google Patents

Description

[Detailed Description of the Invention] A boiler is a device that heats water in a tank to supply hot water, or uses the generated steam for heating, heating, and drying work. Although it is easy to inspect and clean the inside of the boiler body in a cylindrical boiler, the cylindrical furnace tube has a small heat transfer area and is inefficient, whereas a smoke tube boiler with a large number of smoke tubes inside the main body has a small heat transfer area. Despite its large size and high efficiency, it had drawbacks such as difficulty in cleaning the interior.

The present invention is capable of increasing thermal efficiency by extending the residence time of combustion gas by arranging the combustion tube and the smoke pipe in communication within the boiler body, and by narrowing the back part of the combustion tube into two branches. This relates to the creation of a hot water boiler, which is characterized by what it has done.

Hereinafter, the configuration of the present invention will be explained with reference to embodiment figures.

A tapered surface 2 is provided at the upper end of the front part of the cylindrical combustion tube 1.
At the same time, a wedge-shaped interval 3 communicating from the upper surface to the lower surface is provided at the center of the back surface, and a tapered surface 5,
5' is provided, and the combustion tube 1 is installed at the inner bottom of the boiler body 6.
is installed to fix the end plate 7 of the combustion tube 1 to the front of the boiler body 6, and the forked branch 4,
4' to communicate with each other, and a smoke chamber 8' is placed in the upper position of the smoke chamber 8.
A smoke chamber 8'' is installed on the inner surface of the boiler body 6 located above the front of the combustion tube 1, and the smoke chamber 8 and the smoke chamber 8'' are connected by a smoke pipe 9, and the smoke chamber 8'' and the smoke chamber 8' are connected by a smoke pipe 9'. A chimney 10 is provided protruding from the smoke chamber 8', and lids 11, 11', 1 for removing soot are installed in the smoke chambers 8, 8', 8''.
1'' and a smoke exhaust damper 14 is installed in the smoke chamber 8'. In the figure, 12 is a burner and 13 is a brick wall.

Next, the effects of the present invention will be explained with reference to embodiment figures.

A burner 12 is connected to the center hole of the end plate 7 of the combustion tube 1, and when the burner 12 injects and burns the atomized air-fuel mixture, the combustion gas flows into smoke from the bifurcated branches 4, 4' of the combustion tube 1. Chamber 8, smoke pipe 9, smoke chamber 8'',
The smoke is discharged from the chimney 10 while flowing into the smoke pipe 9'. The combustion tube 1 and the smoke tubes 9, 9' are heated to a high temperature while the combustion gas is flowing through them, and the water stored in the boiler body 6 is heated to a high temperature due to heat conduction from the outer peripheral surface. A fork-shaped shunt 4, 4' is provided on the top surface, and a tapered surface 5,
The ridge at 5' adds resistance to the combustion gas flowing to the back, and compared to a normal cylindrical furnace tube, the residence time of the combustion gas in the combustion tube 1 becomes longer and it is heated to a high temperature. , the heat capacity conducted from the combustion tube 1 to the stored water increases, and the combustion gas in the smoke pipes 9, 9' is reduced while restricting the combustion gas passing from the smoke pipe to the chimney 10 by the smoke damper 14 provided in the smoke chamber 8'. By adjusting the residence time, the heat transfer capacity of the smoke pipes 9 and 9' is increased, dramatically improving boiler efficiency and saving several tens of percent of fuel.

Also, the lids 11, 1 provided on the smoke chambers 8, 8', 8''
1', 11'' are opened, and the soot inside can be easily removed by inserting a brush into the smoke pipes 9, 9', which brings about the remarkable effects mentioned above.

[Brief explanation of the drawing]

FIG. 1 is a front view of a hot water boiler according to an embodiment of the present invention, FIG. 2 is a rear view thereof, FIG. 3 is a vertical sectional view thereof, FIG. 4 is a sectional view taken along line A-A in FIG. The figure is a sectional view taken along the line B-B, and FIG. 6 is a sectional view taken along the line C-C.

Claims (1)

[Claims] 1. A cylindrical combustion tube 1 has a tapered surface 2 at the upper end of its front surface, and a wedge-shaped interval 3 communicating from the upper surface to the lower surface at the center of the back surface, and a bifurcated branch 4 divided by the wedge-shaped interval 3. , 4' have a tapered surface 5 on the upper surface,
5' is provided, and the combustion tube 1 is installed at the inner bottom of the boiler body 6.
is installed to fix the end plate 7 of the combustion tube 1 to the front of the boiler body 6, and the forked branch 4,
4' to communicate with each other, and a smoke chamber 8' is placed in the upper position of the smoke chamber 8.
A smoke chamber 8'' is installed on the inner surface of the boiler body 6 located above the front of the combustion tube 1, and the smoke chamber 8 and the smoke chamber 8'' are connected by a smoke pipe 9, and the smoke chamber 8'' and the smoke chamber 8' are connected by a smoke pipe 9'. This hot water boiler has a chimney 10 protruding from a smoke chamber 8', and a smoke exhaust damper 14 installed within the smoke chamber 8'.