JPH0318823Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a sealing device for a piping portion in a combustor.

(Prior art) Conventionally, this type of device has been equipped with a sealing member such as a rubber bushing in the gap between the main body of the device and a pipe protruding to the outside from a hole formed in the side surface (lower surface, upper surface, side surface, etc.) of the device. It is known that the inside of the device body is kept airtight to prevent combustion exhaust from a burner or the like existing inside from leaking outside.

(Problems to be Solved by the Invention) However, in the conventional device described above, a hole is bored in the side surface of the instrument body, and an annular sealing member is fitted into the annular groove provided on the outer periphery of the hole. Pipes such as gas pipes, water pipes, hot water pipes, etc. connected to the burner and the heat exchanger heated by the burner are inserted through the space inside the sealing member and protrude to the outside, making it extremely difficult to work. There was a problem.

The present invention aims to solve the above problems.

(Means for solving the problem) The present invention provides a sealing member in the gap between the instrument body and a pipe such as a gas pipe that protrudes from the side of the instrument body to the outside to keep the interior of the instrument body airtight. In such a device, the main body of the device is composed of a front cover and a rear cover, and a raised edge is formed on the end of one side of each of the covers facing each other to serve as a joint between the two covers. Recesses are provided in the joint portions facing each other to form insertion holes through which the pipes are inserted, and a band-shaped sealing member is interposed in the joint portion of both covers.

(Function) The present invention has the above configuration, and according to this, a band-shaped sealing member is installed between the joint parts of the front cover and the rear cover, each of which has a recess, so that a pipe such as a gas pipe can be accommodated in the recess. By sandwiching the two covers together, the piping section is sealed, and the inside of the instrument body made up of both covers is kept airtight.

(Example) Next, an example of the present invention will be described based on the drawings.

In FIGS. 1 to 3, reference numeral 1 indicates the main body of a balanced-fluid water heater, which is a combustor and is equipped with a heat exchanger A and a burner B for heating the heat exchanger A.
From the lower surface, which is a side surface, the connection end of the gas supply pipe 2 connected to the burner B, the connection end of the water supply pipe 3 connected to the heat exchanger A, and the hot water supply pipe 4 are seen.
and the connecting end thereof protrudes to the outside.

The main body 1 is composed of a front cover 5 and a rear cover 6, as shown in FIG.
10, forming vertical edges 91, 101 to form a joint 11, and inserting holes 12, 13, 14 halves 12a, 13 through which the pipes 2, 3, 4 are inserted.
a, 14a and 12b, 13b, 14b are provided facing each other with appropriate intervals, and both covers 5, 6
A band-shaped sealing member 15, 1 is attached at the joint portion 11.
When the pipes 2, 3, and 4 are superimposed and fixed together with screws or the like via the through holes 12 and 5, the pipes 2, 3, and
13, 14, and the gap between them is filled by the seal members 15, 15 to prevent combustion exhaust from the internal burner B from being released to the outside through the gap.

In the above-mentioned embodiment, the joint 11 of the lower surface 7, which is the side surface of the front cover 5, is concave as a whole, and the joint 11 of the lower surface 8, which is the side surface of the rear cover 6, is convex as a whole, so that the two joints fit together. I did it like that.
According to this, positioning on the side surface can be performed reliably, and the side surface of the front cover 5 can be positioned on the rear cover 6.
Since it can be extended to the rear surface of the main body 1, when the front cover 5 is removed, both side surfaces of the main body 1 are no longer present, and most of the interior is exposed, making maintenance etc. easy.
In this case, since both sides of the concave and convex shapes are tapered, fitting is easy even with the seal members 15, 15 interposed, and the sealing performance is good.

In addition, in the above embodiment, both covers 5 and 6
As shown in FIG. 5, a band-shaped sealing member 16 is also interposed at the joint between the side surface and the top surface.

(Effect of the invention) As described above, according to the invention, the gas pipe is connected to the periphery of the insertion hole formed when the front cover and the rear cover are joined through the band-shaped sealing member provided at the joint of both covers. To prevent combustion exhaust from leaking to the outside from the piping section, the pipe is inserted through a hole in the main body of the device, and an annular sealing member fitted into the hole seals the piping. This has the effect of improving workability compared to the conventional system which prevents combustion exhaust from leaking to the outside.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an example of the implementation of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a bottom view thereof, Fig. 4 is an exploded perspective view thereof, and Fig. 5 is a side view of both covers. FIG. 7 is a cross-sectional view of a state in which a band-shaped seal member is interposed at the joint portion of the surfaces. 1...Main body, 2, 3, 4...Pipe, 5...Front cover,
6... Rear cover, 9, 10... End side, 11... Joint part,
12, 13, 14...Insertion hole, 15...Seal member,
12a, 13a, 14a, 12b, 13b, 14
b... Half part (concave part), 91, 101... Standing edge.

Claims (1)

[Scope of utility model registration request] In a device in which a sealing member is applied to the gap between the device body and a pipe such as a gas pipe protruding from the side of the device to the outside to keep the inside of the device airtight, the device body is connected to the front cover and the back. comprising a cover, forming a raised edge at the edge of one side of each of the covers facing each other to serve as a joint between the two covers;
A sealing device for a piping part in a combustor, comprising recesses facing each other in each joint part to form an insertion hole through which the pipe is inserted, and a band-shaped sealing member interposed in the joint part of both covers.