JPS6242265Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention relates to the improvement of combustion appliances that use gas or oil as fuel.In other words, it is known that the chimney can be installed selectively on the left or right side depending on the installation conditions of the combustion appliance. It is.

Moreover, it was developed in 1983 to increase the heat exchange efficiency of the heat exchanger by selecting the left and right chimneys.
It is also proposed as Publication No. 55313.

By the way, the configuration of this conventional one is shown in Figures 1 and 2.
As shown in the figure, a heat exchanger 3 is provided which communicates with a combustion chamber 2 having a burner 1, and chimney connection ports 4, 4 are opened on the upper surface of both longitudinal ends of the heat exchanger 3, respectively. Selectively attach the lid 5 and the chimney connection fitting 6 to either one of the chimney connection fittings 6 and convert the exhaust port 8 of the exhaust guide tube 7 to the side of the lid 5 opposite to the chimney connection fitting 6 and open it. It was a composition.

Therefore, the chimney 9 is selectively installed, and of course the exhaust gas is also bypassed through the heat exchanger 3, resulting in good heat exchange efficiency.

However, regarding the point that this conventional heat exchange efficiency is said to be good, the flow of exhaust gas from combustion largely flows toward the lid body 5 side and then reaches the chimney 9 as shown by the arrow.
Because of its nature, the exhaust gas tends to immediately flow from the exhaust port 8 of the exhaust guide tube 7 to the chimney 9 side, where there is less resistance. The lid body 5 side, which is the /3 side, has a low temperature and the heat exchange efficiency is not so good, and this tendency becomes more pronounced as the longitudinal direction of the heat exchanger 3 becomes longer.

Furthermore, when replacing the positions of the lid 5 and the chimney connection fitting 6, this conventional type also requires work to simultaneously change the exhaust port 8 side of the exhaust guide tube 7 toward the lid 5. If the exhaust port 8 side of the cylinder 7 was not converted, the exhaust gas would flow into the chimney 9 side all at once, resulting in a significant drop in heat exchange efficiency (about 1/3).

This idea focused on this point, and in order to eliminate the conventional drawbacks, the structure was changed to include a heat exchanger that communicates with a combustion chamber equipped with a burner, and chimneys are connected to the upper surface of both longitudinal ends of the heat exchanger. In a combustion appliance in which a mouth is opened and a lid body and a chimney connection fitting are selectively attached to either one of the chimney connection ports so that the installation position of the chimney can be selected, a combustion chamber is provided approximately in the center of the heat exchanger. The exhaust guide tube has an exhaust port opening on one side in the width direction of the heat exchanger, and is divided approximately at the center in the width direction by a partition wall, and further has a chimney connection port. The partition wall at the corresponding position is cut out to form a flow passage, and in either side of the flow passage, a guide plate with a generally curved cross section attached below the chimney connection fitting is opened in the opposite direction to the exhaust port. Since it is installed, the heat exchange efficiency is usually improved compared to the conventional one, and there is no need to convert the exhaust guide tube at all, so the chimney conversion work is easy and the heat exchange efficiency is improved. It has the characteristic that there is no significant deterioration at all.

Next, an embodiment of this invention shown in the drawings will be explained. Since the basic configuration is the same as the conventional example, the difference will be explained. It is divided into front and rear sections by a plate-shaped partition wall 31 from the outer periphery.

The corresponding positions of the partition wall 31 and the chimney connection ports 4, 4 are cut downward to form flow passages 32, 32 with the same dimensions as the chimney connection ports 4, 4.

A guide plate 61 having a substantially curved cross section is integrally suspended below the chimney connection fitting 6, and its length and width are sized to match the left and right bottoms of the flow passages 32, 32 of the partition wall 31.

The opening side of the guide plate 61 is always located on the opposite side from the exhaust port 8 of the exhaust guide tube 7, so that a mark (not shown) is placed on the guide plate 61 to prevent mistakes.

The exhaust port 8 of the exhaust guide tube 7 opens at the rear side in the transverse direction of the heat exchanger 3, and even if the position of the chimney connection fitting 6 is changed to the left or right side, the exhaust gas detours forward to the minimum. It's like this.

In addition, the lid body 5 and the chimney connection fitting 6 are connected to each chimney connection port 4,
When connecting to 4, it can be attached with set screws, etc.

71 is an outer frame, 72 is a guard body, 73 is a blower,
74 is a fuel regulator.

This invention is constructed as described above, and when changing the mounting position of the chimney 9, it is sufficient to replace the lid body 5 and the chimney connection fitting 6 and attach them to each chimney connection port 4, 4, which is almost the same as the conventional one. However, the guide plate 61 is attached to the flow path 32 of the partition wall 31.

As a result, the exhaust gas detours as shown by the arrow from the exhaust port 8 of the exhaust guide tube 7 to the flow passage 32 of the partition wall 31 to the opening of the guide plate 61 to the chimney connection fitting 6. Therefore, the exhaust gas detours from the rear of at least 3. This will flow into half and the entire front surface, radiating heat to the surrounding area and improving the heat exchange effect.

On the other hand, when converting the chimney from side to side, it is easier to convert and connect only the chimney connecting fitting 6 and the lid body 5 compared to the conventional one.

As described above, this invention includes a heat exchanger 3 that communicates with a combustion chamber 2 having a burner 1, and the heat exchanger 3
Chimney connection ports 4, 4 are opened on the upper surface of both ends in the longitudinal direction, and the lid body 5 and chimney connection fitting 6 are selectively attached to either one of the chimney connection ports 4, 4 to determine the installation position of the chimney 9. In a combustion appliance that can be selectively attached, a combustion chamber 2 is provided approximately in the center of the heat exchanger 3.
an exhaust guide tube 7 communicating with the exhaust guide tube 7;
An exhaust port 8 is opened on one side of the heat exchanger 3 in the width direction, and a partition wall 31 is opened approximately in the center of the width direction.
Furthermore, the partition wall 31 at the position corresponding to the chimney connection ports 4, 4 is cut out to form flow passages 32, 32, and one of the flow passages 32, 32 is provided with a chimney connection fitting 6. Since the guide plate 61 with a generally curved cross section is installed at the bottom and opens in the opposite direction to the exhaust port 8, the heat exchange efficiency is improved compared to conventional heat exchangers, and the chimney is further reduced. The conversion work is extremely simple and there is no error involved, and in particular, there is no need to convert the exhaust guide cylinder as in the past, and the heat exchange effect does not deteriorate significantly.

[Brief explanation of the drawing]

Figure 1 is a sectional view of a conventional combustion appliance, Figure 2 is a plan view of the combustor, Figure 3 is a sectional view of an embodiment of this invention, Figure 4 is a cross-sectional view of the heat exchanger, and Figure 4 is a cross-sectional view of the heat exchanger. FIG. 5 is a slope view of the chimney connection fitting 6. 1... Burner, 2... Combustion chamber, 4, 4... Chimney connection port, 5... Lid, 6... Chimney connection fitting, 7...
...Exhaust guide tube, 8...Exhaust port, 9...Chimney, 31
... Partition wall, 32, 32 ... Distribution path, 61 ... Information board.

Claims (1)

[Scope of utility model registration request] A heat exchanger 3 is provided which communicates with a combustion chamber 2 having a burner 1, and chimney connection ports 4, 4 are opened on the upper surface of both ends in the longitudinal direction of the heat exchanger 3, respectively. In a combustion appliance in which a lid 5 and a chimney connection fitting 6 are selectively attached to one side of the chimney 9 so that the mounting position of the chimney 9 can be selected, the heat exchanger 3
An exhaust guide tube 7 communicating with the combustion chamber 2 is provided at approximately the center of the heat exchanger 3, and an exhaust port 8 is opened in one of the width directions of the heat exchanger 3, and a partition is provided at approximately the center of the width direction. The partition wall 31 is divided by a wall 31, and the partition wall 31 at the position corresponding to the chimney connection ports 4, 4 is cut out to form flow passages 32, 32, and one of the flow passages 32, 32 has a chimney connection. A combustion appliance in which a guide plate 61 with a substantially curved cross section is attached below a metal fitting 6 and is opened in a direction opposite to an exhaust port 8.