JPS6016806Y2 - composite boiler - Google Patents

Description

[Detailed explanation of the idea] This proposal concerns the improvement of composite boilers.

A conventional composite boiler is explained using Figure 1.
a is an upper ice chamber, b is an intermediate ice chamber, C is a lower ice chamber, d is a group of water tubes that communicate the upper water chamber A and the intermediate water chamber, and e is the intermediate water chamber and the lower water chamber C. A group of connecting water pipes,
f is the exhaust gas heat transfer section, g is the smoke chamber, h is the burner, i is the oil-fired heat transfer section, and j is the smoke chamber. Exhaust gas A from the diesel engine enters the exhaust gas heat transfer section f, and The canned water is heated and discharged from the smoke chamber g, and the combustion gas B combusted by the burner h enters the oil-fired heat transfer section i, heats the canned water in the woodwind group e, and is discharged from the smoke chamber g. It is designed to be discharged from j.

In the above composite boiler, the intermediate water chamber a and the upper water chamber a
Since it becomes a mounting seat for the lower water chamber C and a part of the furnace wall, this water chamber is indispensable and increases the cost.

In addition, the intermediate water chamber must have a sufficient height to accommodate working tools and be repaired, so there are three water chambers a and b.
There was a drawback in that the total height of the boiler was increased due to the fact that the yc was installed one above the other in the vertical direction.

This proposal addresses the above-mentioned problems, and includes an upper ice chamber, a lower ice chamber, a group of water pipes that communicate the water chambers, and a section between the upper and lower ice chambers into an upper and lower exhaust gas heat transfer section and an oil-fired heat transfer section. A composite boiler is provided with a horizontal wall made of a refractory material, and the group of wood pipes is supported by the horizontal wall made of a refractory material. The main point is to provide a composite boiler that is

As mentioned above, the proposed composite boiler has an upper ice chamber,
It comprises a lower ice chamber, a group of water pipes communicating each of the water chambers, and a horizontal wall made of refractory material that divides each ice chamber into an upper and lower exhaust gas heat transfer section and an oil-fired heat transfer section, and the above-mentioned group of wood pipes. Since it is supported by the horizontal wall made of the same refractory material, the horizontal wall can replace the function that was performed by the intermediate ice chamber in the conventional composite boiler.

Therefore, the intermediate ice chamber can be eliminated and costs can be reduced.

Furthermore, since the intermediate ice chamber can be eliminated as described above, the upper ice chamber and the lower ice chamber only have to be installed one above the other in the vertical direction, and the overall height of the boiler can be reduced.

In addition, while the horizontal wall divides the upper and lower exhaust gas heat transfer sections and the oil-fired heat transfer section, the wood pipe group is supported by the same horizontal wall, so when installed on a ship, etc., the wood pipe group can be In addition to preventing vibrations, it is also possible to cope with excitation forces caused by Karman vortices.

Furthermore, since the horizontal wall is made of fireproof material, the upper and lower exhaust gas heat transfer parts and the oil-fired heat transfer part are insulated, and ignition of soot that accumulates on the upper surface of the horizontal wall (soot fire) is prevented.

Next, the composite boiler of the present invention will be explained using an example shown in Fig. 2.3.4. 1 in Fig. 2 is an upper ice chamber, 2
3 is the lower ice chamber, 3 is a group of water pipes connecting each water chamber 1 and 2, 4
is a horizontal wall that divides the space between the water chambers 1 and 2 into the exhaust gas heat transfer section 6 side and the oil-fired heat transfer section 10 side, and the horizontal wall 4 is a horizontal wall that separates the water chambers 1 and 2 into the exhaust gas heat transfer section 6 side and the oil-fired heat transfer section 10 side. It is composed of fins 12 welded to the fins 12 and refractory material 13 installed on each fin 12.

Furthermore, as shown in the upper part of Fig. 5, two fins 1 are attached to each water pipe 3.
2', or four fins 12' may be attached to each water pipe 3 as shown in the lower part of FIG.

In addition, as shown in FIGS. 7 and 8, a large number of refractory materials 13' each having a rectangular bottom shape are fitted into the concavo-convex portions 14 and 15 of each water pipe 3.
The horizontal wall 4 may be constructed by connecting the refractory materials 13' by fitting them into the water pipes 3 and supporting them by support fittings 16 welded to the water pipes 3.

Further, if the refractory material is a material that does not easily deform, the horizontal wall 4 may be constructed by directly fixing the refractory material 13'' to each water pipe 3, as shown in FIG.

In Figure 2, 5 is a chamber, 7 is a baking chamber, 8 is a burner, 9
is a combustion chamber, and 11 is a baking chamber.

Since the composite boiler of this proposal is configured as described above, the exhaust gas A from the diesel engine is transferred to the chamber 5.
The exhaust gas then enters the heat transfer section 6, heats the canned water in the woodwind group 3, and is discharged from the baking chamber 7.

Further, the combustion gas B burned in the burner 8 enters the oil-fired heat transfer section 10 through the combustion chamber 9, heats the canned water in the woodwind group 3, and is discharged from the baking chamber 11.

Therefore, it is a distant relative of the desired effect already mentioned.

[Brief explanation of the drawing]

Figure 1 is a vertical side view showing a conventional composite boiler.
Figure 2 is a vertical side view showing an embodiment of the composite boiler according to the present invention, Figure 3 is an enlarged vertical side view of the part between the arrows in Figure 2, and Figure 4 is taken along the line IV-IV in Figure 3. 5 and 6 are cross-sectional plan views showing other embodiments of the fin portion of the horizontal wall, FIG. 7 is a vertical cross-sectional side view showing other embodiments of the horizontal wall, and FIG. FIG. 9 is a cross-sectional plan view taken along the line (■--■) in the figure, and FIG. 9 is a vertical cross-sectional side view showing still another embodiment of the horizontal wall. 1... Upper ice chamber, 2... Lower water chamber, 3
...Water pipe group, 4...Horizontal wall, 6...
...Exhaust gas heat transfer section, 10...Oil-fired heat transfer section.

Claims (1)

[Scope of utility model registration request] It comprises an upper ice chamber, a lower ice chamber, a group of water pipes communicating each of the water chambers, and a horizontal wall made of refractory material that divides each of the ice chambers into an upper and lower exhaust gas heat transfer section and an oil-fired heat transfer section, A composite boiler characterized in that the above group of wood pipes is supported by a horizontal wall made of the same refractory material.