JPS6036835Y2 - hot water boiler - Google Patents

Description

[Detailed description of the invention] This invention relates to a hot water boiler, particularly its heat insulation structure, which improves workability and heat retention efficiency, and also prevents electrical leakage by preventing dew condensation on the outer periphery of the can. The safety of the system can also be improved.

Conventionally, as shown in Fig. 5, a heat insulating material such as glass wool 1
0' was fixed to the can body 11' by wrapping it around the outer periphery of the can body 11' and fastening it with wire, tape, etc. 16'.

At this time, two workers are required: one to wrap the glass wool 10', and one to secure it to the outer periphery of the can body 11 with wire, tape 16', etc., and when handling the glass wool 10', dust is generated, which can be harmful to the body. There were problems with workability, such as the feeling of itching when worn.

In addition, the can body 1 is secured with wire tape 16' etc.
1', but in other parts, there is a gap between the outer circumferential surface of the can body 11' and the glass wool 10', and the can body 11'
'The heat loss from the surface increases.

Further, dew condensation occurs on the surface of the can body 11', causing corrosion of the can body 11' or flowing into electrical parts 12' such as a hot water temperature controller, causing an electrical leakage accident.

The present invention is intended to eliminate these drawbacks and will be explained below with reference to the drawings.

In Figures 1 to 4, 1 is the main body base, 2 is the exterior, and 3
is the burner, 4 is the chimney connection port, 5 is the water supply port, 6 is the hot water supply port,
7 is a drain port.

8 is an operation switch, and 9 is a fuel filter.

Reference numeral 10 denotes a heat insulating material (for example, lath wool or rock wool), which is wrapped around and fixed around the outer peripheral surface of a cylindrical can body 11, and the outer sheath 2 is provided around the outer periphery of the can body 11.

12 is a hot water temperature controller, which controls hot water 18 in the can body 11;
It senses the temperature and controls the burner 3.

Reference numeral 13 denotes a baffle for efficiently bringing the combustion exhaust gas into contact with the inner wall of the can body 11.

Reference numeral 14 is a fire brick used to insulate the bottom of the main body to prevent the temperature from rising too high.

As shown in FIG. 3, the heat insulating material 10 is covered with a thin sheet 10' made of polyethylene or the like on both the front and back sides, and the ends of the front and back sheets are joined (section A) by heat sealing or the like.

At this time, a portion without the heat insulating material 10 by one dimension is provided at both ends in the winding direction around the can body 11.

When wrapping the heat insulating material 10 around the can body 11, the parts without the heat insulating material 10 at both ends are pulled, and the parts are overlapped and joined using a joining means 15 such as a stapler. It is something that is closely attached.

As is clear from the above explanation, according to the present invention, the outer circumferential surface of the can and the insulation material are in close contact with each other on the entire surface, and heat transfer occurs only through heat transfer, eliminating heat transfer due to air convection that occurs in gaps as in the past. Loss is reduced, and heat retention efficiency is greatly improved.

In addition, since there is no gap between the heat insulating material and the outer circumferential surface of the can, there is no condensation caused by the temperature difference between the can and the outside temperature, eliminating electrical leakage and corrosion.

In addition, in this invention, the insulation material covered with the front and back sheets whose outer peripheries are joined together is wrapped around the outer periphery of the can body, so this wrapping reduces the amount of dust generated from the insulation material during work. Without,
This also prevents deterioration of the working environment.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a hot water boiler according to an embodiment of the present invention, Fig. 2 is a vertical sectional view of the hot water boiler, Fig. 3 is a perspective view of the heat insulating material of the hot water boiler, and Fig. 4 is the same. FIG. 5 is a cross-sectional view of a main part of a hot water boiler, and FIG. 5 is a cross-sectional view of a conventional example. 10...Insulating material, 10'...Sheet,
11...Can body, 15...Coupling means.

Claims (2)

[Scope of utility model registration request] (1) A hot water boiler with a heat insulating material wrapped around the outer circumference of the can, covered with front and back sheets whose outer circumferences are joined together. (2) The hot water boiler according to claim 1, wherein the sheet is made of an impermeable material.