JPS604027Y2 - baffle device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a baffle device installed above the combustion chamber of a hot water boiler for the purpose of providing resistance to the flow action of combustion exhaust gas and improving heat exchange efficiency.

This type of baffle device has a cylindrical can body 1 as shown in FIG.
It was placed above the internal combustion chamber 2 of.

A conventional baffle device was constructed as shown in FIGS. 1 to 3.

That is, holes 10 (see FIG. 3) are provided at the periphery of a plurality of resistance plates 3, and connecting rods 4 are passed through the corresponding holes 10 of the resistance plates 3, and the lowest part of the connecting rod 4 is provided with a hole 10 (see FIG. 3). A locking part 5 for locking the lower resistance plate 3 is formed, and a spacer 6 is arranged in the middle of the connecting rod 4 to regulate the distance between the resistance plates 3.
The upper part of the connecting rod 4 is attached to the baffle top 7, the baffle top 7 is arranged on the upper part 8 of the cylindrical can body 1, and the distance between the baffle top 7 and the uppermost resistance plate 3a is regulated. A metal fitting 9 is provided.

As described above, conventionally, when constructing a baffle device for use in the cylindrical can body 1, there are many types of parts (5 types in this conventional example) and a large number of parts (20 in this conventional example).

Furthermore, in this conventional example, since the parts are only spaced apart from each other, the strength is weak and thermal deformation due to combustion exhaust gas is large.

In addition, in order to improve heat exchange efficiency, the exhaust gas is made to flow through large bends as shown by the arrows in Figure 1, so there is a large exhaust resistance, which makes it necessary to improve the performance of the burner. In some cases, this may lead to deterioration in combustion performance.

Therefore, the present invention is intended to solve the above-mentioned conventional drawbacks with a simple configuration, and embodiments of the present invention will be described below.

In FIG. 4, 11 is a boiler can body, which is composed of an inner shell 12 and an outer shell 13.

14 is an exterior, 15 is a top having an exhaust port 16, and a draft regulator 17 is attached to the upper part of the top 15.

The baffle top 1 is placed on the metal fitting 18 fixed to the inner body 12.
9, and a baffle main body 21 is suspended from the baffle top 19 via a baffle metal fitting 20.

A burner 22 is provided on the side surface of the boiler can body 11, and the combustion exhaust gas combusted in the combustion chamber 23 inside the inner shell 12 passes through the gap between the baffle body 21 and the inner shell 12 as indicated by the dashed arrow, and then reaches the opening of the baffle top 19. The air is then discharged to the outside through the exhaust port 16 and the draft regulator 17.

In order to improve heat exchange efficiency, it is necessary to pass as much combustion exhaust gas as possible as close to the inner shell 12 as possible and in as turbulent a state as possible.

On the one hand, it is required to construct such a mechanism as cheaply as possible.

As mentioned above, the baffle device of this embodiment (general term for the baffle top 19, baffle metal fittings 20, and baffle body 21) has four types of parts and seven parts, which is wider than the conventional one. has decreased to

Furthermore, as shown in FIG. 5, the baffle body 21 has a box-like structure consisting of two cylindrical baffles 26 having a vertical portion and two baffle plates 27 forming a horizontal portion, which is different from the conventional example. It is also stronger in terms of strength than other materials, and the degree of thermal deformation caused by exhaust gas is small.

Furthermore, as mentioned above, since the number of parts is small, assembly is easy.

Figure 6 shows a single baffle 26, and the L-shaped baffle 26
Fold the top and bottom of each side outward to form horizontal parts 28 and 2.
8', and a horizontal part 29 is provided in the central part by cutting a part of the vertical surface inward, and between the upper horizontal part 28 and the central horizontal part 29, and between the lower horizontal part 28' and Horizontal slits 30 and 30' for inserting the baffle plates 27 are provided between the central horizontal portions 29, respectively.

The baffle fitting 2 is attached to the upper part of one side of the baffle 26.
A plurality of holes 32 are provided in each of the square holes 31 for attaching the baffles 26 and one end thereof, which are used when bending is performed as one of the methods for combining and fixing two baffles 26.

The other end of the other baffle is provided with a protrusion 33 that is inserted into the corresponding part of the hole 32 of the other baffle.
The baffle 26 has the slits 30, 30 as shown in FIG.
After the baffle plates 27 shown in FIG. 7 are inserted into the baffle plates 27 in FIG.

The combustion exhaust gas is as shown by the broken line in Figures 4 and 5.
When passing through the horizontal portions 28, 28' 29 of the baffle 26, the exhaust gas collides with the inner shell 12, and when passing through the baffle plate 27, the exhaust gas is divided into two, that is, the horizontal portions 28, 2
8', 29 and the baffle plate 27 to disturb the flow of the exhaust gas, and since substantially the same exhaust gas passes through one vertical surface, the exhaust resistance is not as large as in the conventional example.

Furthermore, as can be seen in FIG. 4, the baffle plate 27 can be constructed so that the volume of the combustion chamber 23 and the volume of the smoke chamber 34 are larger than those of the conventional example, so that the combustion performance is further improved and the volume of the combustion chamber 23 is larger than that of the conventional example. When this is ensured, the portion of the baffle body 21 facing the inner shell 12 (effective heat transfer area) can be made larger than in the conventional example, and the heat exchange efficiency improves accordingly.

9, 10, and 11 show other embodiments, in which a type 2 baffle fitting 20 is inserted into the hole 31 of the baffle 26 so as to leave the part with the protrusion 35 for preventing removal. , insert the other end into the hole 36 of the baffle top 19,
Hole 37 of baffle fitting 20 and hole 3 of baffle top 19
8 and is fixed with screws 39 or the like.

As described above, the present invention combines a plurality of baffles having vertical parts to form a cylindrical body, and bends the upper and lower parts of each vertical surface of the baffles to the outside of the cylindrical body to provide horizontal parts, and A horizontal part is created by cutting a part of each face inward at the center of the surface, and a horizontal part is created between the upper horizontal part and the middle horizontal part, and between the lower horizontal part and the middle horizontal part. Since a slit is provided in the direction, and a baffle plate is placed in the horizontal direction by inserting it into the slit, the number of parts is reduced and the strength is increased.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of a hot water boiler equipped with a conventional baffle device, Fig. 2 is a perspective view of a conventional baffle device, and Fig. 3 is a perspective view of a resistance plate and spacer used in the conventional baffle device. Fig. 4 is a longitudinal cross-sectional view of a hot water boiler using a baffle device according to an embodiment of the present invention, Fig. 5 is a perspective view of a baffle body according to an embodiment of the present invention, and Fig. 6 is a diagram of a baffle according to the present invention. A perspective view, FIG. 7 is a perspective view of the same baffle plate,
Fig. 8 is a partially cutaway top view of the baffle body of the present invention;
The figure is a longitudinal cross-sectional view of a combination of the baffle body, baffle top, and baffle metal fittings of the present invention, FIG. 10 is a perspective view of the baffle top of the present invention, and FIG. 11 is a perspective view of the baffle metal fittings of the present invention. 19...Baffle top, 20...Baffle gold L21...Baffle body, 26...
... Baffle, 27... Baffle plate,
28.28', 29...Horizontal part, 30°30'...Slit.

Claims (1)

[Scope of utility model registration request] A cylindrical body is formed by combining a plurality of baffles each having a vertical portion, and a horizontal portion is provided by bending the upper and lower portions of each vertical surface of the baffle to the outside of the cylindrical body, and a horizontal portion is provided in the center of the vertical surface. A horizontal part is created by cutting a part of A baffle device with a baffle plate arranged horizontally by inserting it into the