JPS6230679Y2 - - Google Patents

Description

[Detailed explanation of the idea] (b) Industrial application fields The present invention relates to an improvement of a hot water storage type hot water boiler.

(b) Background Art Conventionally, this type of hot water boiler 1 has a hot water storage tank 3 and a combustion device 4 inside an outer box 2, as shown in FIG.
The water in the lower part of the hot water storage tank 3 is supplied to the heat exchanger 6 through the water outflow pipe 5, and the hot water in the heat exchanger 6 heated by exchanging heat with the combustion gas of the burner 7 is converted into hot water. Hot water is returned to the upper part of the hot water storage tank 3 through a return pipe 8, so that hot water is stored sequentially from the upper part of the hot water storage tank 3. Reference numeral 9 denotes a water supply port provided at the lower part of the hot water storage tank 3, to which a water supply pipe 12 introduced from a pipe hole 11 provided in the side plate 10 of the outer box 2 is connected. Reference numeral 13 denotes a hot water supply port provided at the top of the hot water storage tank 3, to which a hot water supply pipe 16 led out from a pipe hole 15 provided in the top plate 14 of the outer box 2 is connected.

The hot water boiler described above has the following drawbacks when a plurality of hot water boilers (three in FIG. 2) are installed as shown in FIG.

Extra space is required to connect the water supply pipes 12, 12, 12 between each hot water boiler 1-1, 1-2, 1-3.

It is necessary to match the dimensions of the water supply piping for each hot water boiler, and it also involves vertical piping, making piping work complicated.

The portion of the water supply piping of each hot water boiler that is exposed from the outer box must be insulated (wrapping and racking with heat insulating material), and this work is difficult.

In addition, when a single unit or a plurality of units are installed, there is a drawback that there is no flexibility in selecting left and right piping.

(C) Purpose of the invention The present invention was made in view of the above-mentioned drawbacks of the conventional technology, and aims to reduce the installation space when multiple units are installed, simplify piping work, simplify piping insulation work, Furthermore, the purpose is to provide flexibility in selecting left and right piping.

(d) Main points of the invention The present invention consists of a hot water storage tank and a combustion device housed in a vertical relationship in an outer box, and a piping hole is provided in two opposing side plates of the outer box, and the piping hole is inserted into the piping hole. It is characterized by a T-shaped water supply port with two facing connection parts protruding from the bottom of the hot water storage tank, so that when multiple hot water boilers are installed, the outer box piping holes of adjacent hot water boilers are aligned. Since the connection parts of the water supply ports of each hot water boiler arranged in a straight line can be successively connected by piping, there is no need for space between each hot water boiler to connect the water supply piping. Further, since the dimensions between the connecting parts of the water supply ports are constant and no vertical piping is required, the water supply piping work is greatly simplified. In addition, the piping that connects the water inlet connections is not exposed to the outside, so
No insulation treatment required. Furthermore, regardless of whether the device is installed alone or in multiple units, the piping hole in the outer box and the connection part of the water supply port can be selected, so it can be used with either left or right piping.

(E) Example of the invention An example of the invention shown in the drawings will be described below. 3 and 4 show a hot water boiler 1' to which the present invention is applied, and the same parts as shown in FIG. 1 are given the same reference numerals. The hot water boiler 1' has two opposing side plates 17 and 18 of the outer box 2'.
Piping holes 19 and 20 are drilled in the piping hole 1.
Connecting parts 21 on two sides so as to face 9 and 20
A T-shaped water supply port 21 having portions a and 21b protrudes from the bottom of the hot water storage tank 3. Note that the inner walls of the connecting portions 21a and 21b are threaded.

FIG. 5 is an example of left piping in which a plurality of hot water boilers (in this embodiment, three) are installed, with the hot water boilers described above being brought into close contact with each other so that the piping holes in the outer boxes coincide with each other. In the same figure, each hot water boiler 1'-1,
The water supply ports 21 of 1'-2 and 1'-3 have two types of pipes 22 and 23, long and short, with threads cut on the outer periphery of both ends.
and a union joint 24. First, hot water boiler 1'-1 on the water supply side is 2
The main piping 22, 22 is the connection part 21 of the water supply port 21
a, 21b, the other end of the left piping 22 is led out from the piping hole 19,
It is connected to an external water supply pipe 25. On the other hand, the other end of the right piping 22 passes through the piping holes 20 and 19 and is inserted into the outer box 2' of the hot water boiler 1'-2, and is connected to the water supply port 21 of the hot water boiler 1'-2. It is connected to the pipe 23 attached to 21a using a union joint 24 as shown in FIG. Next, the connection parts 21b and 21a of the hot water boilers 1'-2 and 1'-3 are similarly connected using the pipes 22 and 23 and the union joint 24. Finally, a blind plug 26 is attached to the connecting portion 21b of the water supply port 21 of the hot water boiler 1'-3, and a rubber eyelet 27 is attached to the piping hole 20 as shown in FIG.

In addition, the piping holes 19 and 20 through which the piping 22 is inserted
As shown in FIG. 6, two fastening fittings 28, 29 and a packing 30 are used to prevent rainwater from entering.

Therefore, when a plurality of hot water boilers 1' according to this embodiment are installed, adjacent hot water boilers are brought into close contact with each other so that the outer box piping holes 19 and 20 are aligned.
The connection parts 21a and 21b of the water supply ports 21 of each hot water boiler lined up in a straight line are sequentially connected to the piping holes 19 and 20.
Since the hot water boilers can be connected by the pipes 22 and 23 via the hot water boilers, there is no need for space for connecting water supply pipes between each hot water boiler. Furthermore, since the dimensions between the connecting parts 21a and 21b of the water supply port 21 are constant, pipes 22 and 23 of a predetermined length can be used, and vertical piping is not required, so the water supply piping work is greatly simplified. . Further, since the pipes 22 and 23 connecting the connecting portions 21a and 21b of the water supply port 21 are not exposed to the outside, there is no need for heat insulation treatment (applying a heat insulating material or racking). Furthermore, regardless of whether a single unit or a plurality of units are installed, the piping holes 19, 20 of the outer box 2' and the connecting portions 21a, 21b of the water supply port 21 can be selected, so that it can be used for either left or right piping.

(f) Effects of the invention As explained above, the present invention can reduce the installation space by eliminating the need for extra space for water supply piping work when multiple units are installed.
In addition, piping work and piping insulation work can be simplified, installation work can be done quickly, and piping materials can be reduced, resulting in an inexpensive construction.
Furthermore, there is flexibility in left and right piping, making it highly practical.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram showing an example of a conventional hot water boiler, Fig. 2 is a schematic configuration diagram showing an example in which multiple hot water boilers of Fig. 1 are installed, and Fig. 3 is an example of an embodiment of the present invention. A schematic configuration diagram of a hot water boiler, Fig. 4 is an explanatory diagram for explaining the relationship between the water supply port and water supply hole in Fig. 3, and Fig. 5 is a schematic diagram showing an example in which multiple hot water boilers shown in Fig. 3 are installed. Configuration diagram, Figure 6 is A of Figure 5
FIG. 7 is an enlarged sectional view of section B in FIG. 5. 1'... Hot water boiler, 2'... Outer box, 3... Hot water storage tank, 4... Combustion device, 17, 18... Side plate,
19, 20... Piping hole, 21... Water supply port, 21
a, 21b... Connection part.

Claims (1)

[Scope of utility model registration request] In a product in which a hot water storage tank and a combustion device are housed in a vertical relationship in an outer box, two parts of the outer box that face each other
A hot water boiler characterized in that a piping hole is provided in a side plate, and a T-shaped water supply port with two connecting portions facing the piping hole protrudes from a lower part of a hot water storage tank.