JPS6222757Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an intake/exhaust device for combustion devices such as balanced-fluid bathtubs and water heaters.

The intake and exhaust system of a balanced full combustion device is
It is installed to protrude from the wall surface. Wind from all directions acts on this intake/exhaust device depending on natural conditions or environmental conditions at the installation site.

The direction of this wind affects the combustion performance of a combustion device equipped with such an intake/exhaust device, but it is described in Japanese Utility Model Publication No. 54-32265 as ensuring good combustion even against winds in a wide range of directions. There is something like that.

This is a system in which an intake part and an exhaust part are provided separately, and the exhaust part 1 is located at the front upper part of the intake part 2, and intake holes 3, 3 are also provided at the front lower part of the intake part. The room is separated and compartmentalized. (Figures 1 and 2) In this case, the exhaust gas will not mix with the intake air, and even if the exhaust air flows backwards and reaches the surroundings of the intake area when there is wind from the front direction (horizontal direction), There are advantages such as the fact that air flows in through the intake holes 3, 3 provided at the lower part of the front surface, thereby resolving the lack of intake air in this case.

However, in this case, there are intake holes 3, 3 at the bottom of the entire surface of the intake section, and above these, the lower surface 4 of the exhaust section 1 protrudes forward, so that the wind from diagonally downward (as shown by the arrow) If there is, too much air will be taken in, causing combustion defects such as lifting and flashback.

This means that when there is wind from diagonally downward, both the reflected wind hitting the lower surface 4 of the exhaust section 1 and the wind directly directed toward the intake holes 3 and 6 at the lower front of the intake section 2 This is because the air flows in from No. 3, which causes the intake side pressure to become abnormally high, leading to the above-mentioned result.

The purpose of the present invention is to prevent excessive intake of air in this case by distributing the wind from diagonally downward to the intake side and the exhaust side.

The technical means of the present invention for achieving the above object is an exhaust section 1 in which an exhaust pipe 8 is provided inside the cylindrical intake section 2 and the exhaust pipe is protruded forward from the upper part of the intake section 2.
A balanced flue system has a large number of exhaust holes 5, 5 opened on the circumferential side of the exhaust part 2, and a large number of intake holes 6, 6 and 3, 3 opened on the circumferential side and the front lower part of the intake part 2. In the air intake and exhaust system for type combustion appliances, a partition plate 11 is attached to the tip of the exhaust pipe 8, and the partition plate divides the inside of the air intake and exhaust system into an exhaust chamber 10 equipped with the exhaust holes 5, 5, and the air intake holes 6, 6. The lower end of the partition plate 11 is divided into an intake chamber 9 having intake holes 3, 3, and an intake section 2 having intake holes 3, 3.
A predetermined interval is provided between the lower part of the partition plate 11 and the lower front part of the intake part 2, and furthermore, the lower part of the partition plate 11 is located at the same distance as the side wall of the intake part 2. Guide plate 14,1 with a gap
4 is provided, and a guide plate 15 is also provided, which extends between the lower ends of the guide plates and rises obliquely from the front end of the bottom wall of the intake section 2 toward the rear.

(effect) The above technical means of the present invention operates as follows.

When there is wind from diagonally below the intake/exhaust device, this wind hits the bottom of the exhaust section 1 and the lower front of the intake section 2, and the many intake holes 3,
Flow in from 3. However, the lower part of the partition plate 11 is located behind this intake hole at a predetermined interval, and this interval communicates with the exhaust chamber 10 as it is. 3, a portion of the air flowing in from the front is guided to the exhaust chamber 10 side through the communicating portion.

Therefore, when there is a forward wind, an excessive intake state due to all of the incoming air reaching the combustion chamber via the intake chamber 9 does not occur, and the intake and exhaust balance becomes appropriate.

(Effects) Since the present invention has the above configuration, it has the following unique effects.

Even if there is wind from diagonally downward, the intake and exhaust balance will be appropriate, so even under such wind conditions, combustion defects such as lifting and backfire can be prevented.

Since the intake chamber 9 and the exhaust chamber 10 are not completely partitioned, even if a gap is created around the partition plate that partitions the exhaust chamber and the intake chamber, the intake and exhaust balance will not be affected, and the intake and exhaust system can be manufactured. Accuracy is not required.

Further, below the partition plate 11, guide plates 14, 1
4 and 15, even if there is a gap between the partition plate 11 and the lower part of the front wall of the intake section 2 that communicates directly with the exhaust chamber 10 side, a large amount of wind from below will not be directly introduced into the exhaust chamber 10 side. There is no need to worry about the intake and exhaust balance being disrupted by wind from below.

Hereinafter, embodiments of the present invention will be explained based on the drawings.

The intake/exhaust device according to the embodiment of the present invention is as shown in FIGS. 3 and 4, and has an exhaust section 1 protruding from the upper front part of an intake section 2. Around the exhaust section 1, there are a number of Exhaust holes 5, 5 are provided around the intake section 2, and a large number of intake holes 6, 6 are provided around the intake section 2, respectively, and a large number of intake holes 3, 3 are also provided on the front surface of the intake section 2.

On the other hand, an exhaust pipe 8 communicating with the exhaust side of the combustion chamber 7 faces the exhaust chamber 10 in the exhaust section 1 through the upper part of the intake chamber 9, and a partition plate 11 extending from the outer periphery of the tip of the exhaust pipe is Appropriate distance 12 from the bottom of the exhaust chamber 10
The outer periphery of the partition plate is joined to the peripheral wall of the tip end of the air intake part 2. As a result, the empty space formed by the lower front surface of the intake section 2 and the partition plate 11 is communicated with the exhaust chamber 10, and furthermore, the space formed by the lower front surface of the intake section 2 and the partition plate 11 is communicated with the exhaust chamber 10, and furthermore, the space formed by the lower part of the front surface of the intake part 2 and the partition plate 11 is connected to the exhaust chamber 10, and furthermore, The cavity also communicates with the intake chamber 9 via an opening 13 which opens in this area.

Further, on the intake chamber 9 side of the opening, guide plates 14 and 1 protrude from both sides and the bottom of the opening.
The guide plate 15, which protrudes from the bottom side, is inclined inwardly and upwardly, and air intake holes 6, 6 are also provided in the bottom wall of the air intake section below the guide plate 15.

In the above-mentioned embodiment, the adverse effects caused by the wind pressure belt in the case of horizontal wind are prevented by the same mechanism as in the conventional example. In addition, when there is wind from below, air is mainly taken in through the intake holes 6, 6 provided on the bottom surface of the intake section 2, and on the other hand, air is mainly exhausted through the exhaust holes 5, 5 provided on the top surface of the exhaust section 1. As a result, the intake and exhaust air can be balanced. In the case of this wind from below, the intake holes 6, 6
Since the wind entering from the air hits the guide plate 15 and flows into the combustion chamber 7 from the intake chamber 9, the air from the intake holes 3, 3 at this time
It does not suppress the air flowing in from the

Next, when wind hits from diagonally downward, the reflected wind that hits the bottom surface of the exhaust part 1 and is reflected also flows in from the intake holes 3, 3;
Since the opening 13 of the partition plate 11 is located inside the partition plate 11, depending on the inflow angle of the incoming air, a part of the incoming air flows from the interval 12 into the exhaust chamber 10, and most of it flows from the opening 13 into the intake chamber. 9, the air intake and exhaust air are balanced, and excessive air intake can be prevented.

Furthermore, even in the case of a crosswind, the inflowing air from the intake holes 6, 6 hits one of the guide plates 14, 14 and is guided from the intake chamber 9 to the combustion chamber, but in this case as well, the air flows through the opening 13. There is no need to worry about the inflowing intake air being suppressed by the crosswind.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the conventional example, Fig. 2 is a front view of the main part thereof, Fig. 3 is a sectional view of the embodiment of the present invention, and Fig. 4 is a sectional perspective view of the main part. Exhaust part, 2...Intake part, 3...Intake hole,
4...Bottom surface, 5...Exhaust hole, 6...Intake hole, 12
... Spacing, 13... Opening.

Claims (1)

[Scope of utility model registration request] An exhaust pipe 8 is provided in the cylindrical intake part 2, and this exhaust pipe is communicated with the exhaust part 1 which projects forward from the upper part of the intake part 2, and a large number of exhaust holes 5 are provided on the circumferential side of the exhaust part.
5 and a large number of intake holes 6, 6 and 3, 3 are opened at the circumferential side and lower front of the intake section 2. A plate 11 is attached and the partition plate divides the inside of the intake/exhaust device into an exhaust chamber 10 having the exhaust holes 5, 5 and an intake chamber 9 having the intake holes 6, 6 and 3, 3. The lower end of the partition plate 11 is placed at the middle of the rear of the lower front surface of the air intake section 2 having the air intake holes 3, 3, and a predetermined distance is provided between the lower part of the partition plate 11 and the lower front surface of the air intake section 2. Below the plate 11, there are guide plates 14, 14 having a certain gap with the side wall of the intake part 2.
and a guide plate 15 which is installed between the lower ends of the guide plates and rises obliquely from the front end of the bottom wall of the intake section 2 towards the rear.