JPS5842837Y2 - Onsen boiler - Google Patents

Description

[Detailed Description of the Invention] The present invention is designed to prevent corrosion by providing a glass lining on the outer peripheral surface of the burner insertion tube to be attached to the inner and outer shells constituting the ice chamber.

An embodiment of the present invention will be described below based on the accompanying drawings.

In the figure, reference numeral 1 denotes a cylindrical inner body, and a top plate 3 projecting outward is welded to the upper end of the inner body, and a socket 2 into which a sacrificial anode rod is inserted is provided here.

A glass lining treatment 4 is applied to the entire outer surface of the unit in which the inner shell 1 and the top plate 3 are welded together.

Reference numeral 5 denotes a cylindrical outer shell provided outside the inner shell 1, to which sockets 6 such as hot water pipes are connected, and a solid bottom plate 7 is welded to the lower part.

Glass lining treatment 8 is also applied to the entire inner surface of the unit consisting of the outer body 5 and the bottom plate 7.

These two units, the inner and outer shells 1 and 5, are combined and integrated by an upper welded joint 9 and a lower welded part 10, and a water chamber A is formed between these two units.

13 is a cylindrical burner insertion tube with one end on the inner shell side tapered and expanded to a larger diameter 11 than the other end;
, 5, a glass lining treatment 12 is applied to the outer circumferential surface located in the area between 5 and 5.

The burner insertion pipe 13 is installed from inside the inner shell 1, passes through the water chamber A, and is welded to the inner shell 1 and the outer shell 5.
4. Make it 15.

Since the burner insertion tube 13 has a mounting part 16 with the inner shell 1 larger than a mounting part 17 with the outer shell 5, the mounting holes 18 and 19 of the inner shell 1 and the outer shell 5 are designed to correspond to this size. is forming.

The mounting holes 18 and 19 are burred on the inside and outside, respectively, to facilitate welding.

Note that 20 is a firebox brick, which is mounted on the boiler bottom plate 21 welded to the bottom of the inner shell 1.

In the hot water boiler described above, the burner insertion pipe 13 is
To attach to the outer shells 1 and 5, open the mounting hole 18 from inside the inner shell 1.
．． However, since the attachment hole 18 has a larger diameter than the attachment hole 19, the attachment portion 17 to the outer body 5 can be easily positioned in the attachment hole 19.

That is, the glass lining treatment 12 can be inserted without damaging it and can be connected by welding.

Therefore, due to damage to the glass lining treatment 12,
This can eliminate the possibility of corrosion.

As described above, the hot water boiler of the present invention has a burner insertion tube whose outer circumferential surface is glass-lined with a large diameter at one attachment point, and a diameter at which the burner insertion tube is attached to the inner and outer shells. When installing the burner insertion tube, if you insert the small diameter side of the burner insertion tube from the mounting hole side corresponding to the large diameter attachment part of the burner insertion tube, the mounting hole will open. The burner insertion tube can be installed in a fixed position without damaging the glass lining on the outer surface of the tube, preventing corrosion caused by scratches. Although the hole is passed through, depending on the diameter of the pipe and each mounting hole on the inner and outer shell,
Since it can be installed accurately without eccentricity, it is possible to prevent combustion instability caused by tilting of the flame due to burner eccentricity.

Although it is practical for the burner insertion tube to have a larger diameter on the inner side, it is not necessarily limited to this.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the present invention, and FIG. 2 is an enlarged cross-sectional view of the main parts thereof. 1...Inner shell, 5...Outer shell, 13...
...Burner insertion tube, 16°17...Mounting part,
18.19...Mounting hole, A...Water chamber.

Claims (1)

[Scope of utility model registration request] An inner shell, a top plate provided on the inner shell, an outer shell located outside the inner shell, an adult bottom plate provided at the lower part of the outer shell, and the mounting holes of these inner and outer shells are penetrated. The burner insertion tube is attached to the same mounting hole, and the outer peripheral surface of the unit is glass-lined. Glass lining is applied to the entire inner surface of the unit consisting of the adult bottom plate, an ice chamber is formed between these two units, and one attachment part of the burner insertion tube is made large in diameter, and the inner and outer shells are provided with a glass lining. A hot water boiler in which the inner and outer shells and the burner insertion tube are welded at each mounting hole, with mounting holes of a size corresponding to the diameter of the attachment part for the burner insertion tube.