JPS5875653A - Hot air room heater - Google Patents

Abstract

PURPOSE:To miniaturize the heater by a structure wherein a part of the air of a combustion fan is sent to a heat exchange part and an exhaust port in order to eliminate a hot air fan. CONSTITUTION:A branch discharge port 9 is provided at the fan casing 8a of the combustion fan 8 and the air sucked from a suction port 5 is sent to the heat exchange part 7 in order to be turned into hot air. A plurality of nozzles 11a and 11b are bored along the heat exchange part 7 and the exhaust port 6 on a discharge pipe 10 connected to said branch discharge port 9. Diffusers 12a and 12b are arranged at the tip of the nozzles 11a and 11b respectively. Owing to the structure as described just above, the airs jetted from the nozzles 11a and 11b are diffused and supplied to the heat exchange part 7 and the exhaust port 6. In such a manner as mentioned above, a hot air fan is eliminated and the miniaturization and energy-saving of the heater is contrived.

Description

DETAILED DESCRIPTION OF THE INVENTION In general, conventional hot air heaters have a combustion fan that supplies combustion air and a hot air fan that circulates hot air, which are separately provided, making it economical to require two fans. There was a bad drawback. In addition, since the hot air fan described above must be installed separately from the combustion device that houses the combustion fan, a special space must be prepared for the hot air fan inside the heater body, which makes the heater itself larger. There was also.

The present invention is aimed at eliminating the above-mentioned conventional drawbacks, and one embodiment thereof will be described below with reference to the drawings.

In the figure, 1 is the main body of the heater, 2 is a combustion device installed therein, and has a burner 4 installed in a pipe 3.
6 is an air intake port, 6 is an exhaust port, and 7 is a heat exchange section. 8 is a combustion fan of the combustion device 2, and its fan casing 8
A is connected between the heat exchange part 7 and the intake port 5, and is configured to supply air sucked from the intake port 5 to the burner 4 as combustion air.

Further, the fan casing 8a of the combustion fan 8 is provided with a branch discharge port 9, so that the air sucked through the intake port 5 is sent to the heat exchange section 7 to be converted into warm air. 10
is a discharge pipe connected to the branch discharge port 9, and a plurality of nozzles 11a and 11b are provided along the heat exchange section 7 and the exhaust port 6. 12a.

Reference numeral 12b denotes a diffuser disposed at the tips of the nozzles 11a and 11b, which diffuses the air ejected from the nozzles 11a and 11b and supplies it to the heat exchange section 7 and the exhaust port 6. 13 is a suction port provided in the heater body 1, and 14 is a hot air discharge port.

In the above configuration, the air sucked by the combustion fan 8 from the intake port 5 is supplied to the burner 4 as combustion air, passes through the heat exchange section 7, and is exhausted to the outside from the exhaust port 6. A part of the air from the combustion fan 8 is jetted from the branch discharge port 9 through the discharge pipe 1Q and from the nozzles 11a and 11b toward the heat exchange section 7 and the exhaust port 6. nozzle lla
The more jetted air obtains heat from the heat exchanger 7 and is discharged into the room from the hot air outlet 14. At this time, the air from the branch outlet 9 supplied to the heat exchanger 7 is vigorously jetted out by the nozzle 11a, and its ejector effect causes the air to flow through the inlet 13.
The air inside the room is sucked and supplied to the heat exchange section 7. 11
The air jetted from b is mixed with exhaust gas from the exhaust port 6 and discharged into the room from the hot air discharge port 14. At this time, the air from the branch outlet 9 that is supplied to the exhaust port 6 is transferred to the nozzle 11b.
As shown in FIG.
Since more indoor air is sucked and supplied to the heat exchange section 7 and the exhaust port 6, the amount of hot air can be made comparable to when a hot air fan is used. That is, the combustion fan 8 has a high head and a small capacity, and cannot supply as much air as a hot air fan with a small head and a large capacity. By increasing the flow rate, indoor air can be sucked in to compensate for the lack of air. A trench diffuser 12 is used to prevent concentration of air caused by the use of the nozzle 11. Further, although the number of branch discharge ports 9 is one in the embodiment, it may be plural, and the nozzle 11a.

By optimizing the arrangement of the hot air outlet 11b, the hot air temperature and hot air distribution from the hot air outlet 14 into the room can be arbitrarily set. That is, in areas where the hot air temperature is too high and the wind speed is too low, the nozzle diameters of the nozzles 11a and 11b are increased to easily increase the wind speed by utilizing the ejector effect.
The temperature of hot air can be lowered.

Further, 15 is a handle connected to the discharge pipe 10, which is provided through the hole 1e in the upper part of the main body, and 17 is a handle connected to the branch discharge port 9.
The lower part of the 0-discharge vibrator 10 is partially expanded and is inserted into the branch outlet 9 through the 0-ring, and the lower part of the 0-discharge vibrator 10 is stopped at the enlarged tube part 9a of the branch outlet 9. while keeping the handle 16 airtight as shown in Figure 1.
By rotating left and right, the hot air blowout can be changed from side to side. Since the air is sent to the mouth and converted into hot air, there is no need for a hot air fan like in conventional hot air heaters, making it economical and allowing the heater itself to be made smaller. . or,
The angle of hot air blowing can be changed using the handle.

[Brief explanation of drawings]

FIG. 1 is a plan view of a hot-air heater according to an embodiment of the present invention, and FIG. 2 is a sectional view thereof. 6...Exhaust port, 7...Heat exchange section, 8.
... Combustion fan, 9... Branch discharge port,
11a, 11b... Nozzle, 12a, 12b.
... Diffuser〇 Name of agent Patent attorney Toshio Nakao and 1 other person II Figure 1112 Figure

Claims (1)

[Claims] A combustion fan is provided with a branch outlet, a diffuser is provided at this branch outlet, the air is converted into warm air in a heat exchanger, and the angle of hot air discharge is varied by rotating the branch outlet and the diffuser. Hot air heater.