JPS6214077B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an indoor open type hot air heating device that discharges combustion gas into a room to be heated together with air from a blower fan.

In the conventional example shown in FIG. 4, a combustion chamber 4' with an open top is provided in an exterior body 1', and a vaporizing burner 7' for vaporizing and burning oil is attached to the lower part of the combustion chamber, and its flame opening 8' is attached to the lower part of the combustion chamber. is shown inside the combustion chamber. Further, a blower fan 14' is installed in the exterior body 1' below the burner 7', and its blower duct 22 is located at the back of the combustion chamber 4', and its discharge port 23 is placed above the upper opening of the combustion chamber 4'. The fuel gas is combined with combustion gas and released from the outlet 2' on the front of the exterior body to heat the room.

In the conventional example above, there is a ventilation duct 22 behind the combustion chamber.
Because of this provision, the front and back dimensions of the exterior body 1' become large, and there are drawbacks such as the fact that the chamber wall of the combustion chamber is difficult to be cooled by air blowing.

The present invention has been made in view of such points, and the following
-An embodiment will be described based on FIG. 1 is an exterior body with a discharge port 2 on the upper front side and an intake port 3 on the lower back side; 4 is located slightly to the left in the exterior body 1 when viewed from the front;
In addition, the horizontally long combustion chamber is located in the center of the vertical direction.
An inlet 5 is provided in the lower wall, and an outlet 6 is provided in the upper wall, facing each other. Reference numeral 7 designates a vaporizing burner with a flame port 8 visible from the right side of the combustion chamber 4, which is equipped with a vaporizing heater and an atomizer, and is supplied with liquid fuel from an oil storage tank 9 via an electromagnetic pump 10 and an electromagnetic valve 11. ,
Perform gasification combustion. Reference numeral 12 denotes a fuel tank removably mounted on the oil storage tank 9, and a metering valve 13 is attached to keep the liquid level in the oil storage tank 9 constant. Reference numeral 14 denotes a blower fan installed in the exterior body 1 below the combustion chamber 4, and the discharge port 1 of the fan case 17.
5 is communicated with the inlet 5 of the combustion chamber 4, the accelerated flow from the blower fan 14 is introduced into the combustion chamber 4, a part of which is used as combustion air, and a part of which is mixed with combustion gas and the mixed gas is flowed. It is discharged into the room from the outlet 2 through the outlet 6. That is, the outlet 6 and the outlet 2 are communicated with each other by the blower duct 16, and the accelerated flow from the blower fan 14 that flows into the combustion chamber 4 is mixed with combustion gas and flows out of the outlet 6 and is discharged as hot air. It is released from 2. Reference numeral 18 denotes an intake fan that is pivotally attached to the rotating shaft of a motor 19 that rotates the blower fan 14. The intake fan 18 is located in the air supply passage 20, and supplies air sucked in from the air supply hole 21 into the burner 7 as primary combustion air, and also partially is supplied into the combustion chamber from secondary air holes around the burner 7.

As described above, the present invention provides an inlet and an outlet on the wall of the combustion chamber, communicates the outlet of the blower fan with the inlet, and communicates the outlet of the exterior with the outlet, thereby directing the accelerated flow from the blower fan into the combustion chamber. Since the hot air is introduced into the air, mixed with combustion gas, and then released as hot air from the outlet, the front and rear dimensions of the exterior body can be made thinner, and the installation space can be reduced. Also, conventionally, the air passage of the ventilation fan was provided outside the combustion chamber, but in the present invention, by providing it inside the combustion chamber, the air passage becomes simple and the combustion chamber wall can be cooled, so there is no space between the combustion chamber and the exterior body. The gap can be made smaller and the structure can be made more compact. Further, by supplying an accelerated flow from a blower fan into the combustion chamber, a portion of the combustion air is used as combustion air, allowing complete combustion and suppressing the occurrence of bad odors.

[Brief explanation of the drawing]

FIG. 1 is a front view of the hot air heating device of the present invention, FIG. 2 is a cross-sectional view thereof, FIG. 3 is a vertical cross-sectional view thereof, and FIG. 4 is a vertical cross-sectional view showing a conventional structure. DESCRIPTION OF SYMBOLS 1...Exterior body, 7...Burner, 4...Combustion chamber, 5...Inflow port, 6...Outlet port, 14...Blower fan, 2...Discharge port.

Claims (1)

[Claims] 1 An inlet and an outlet are provided facing each other on the wall of a combustion chamber equipped with a burner on the side, and the outlet of a blower fan installed in the exterior body is communicated with the inlet, and the accelerated flow from the blower fan is combusted. A hot air heating device in which a discharge port and an outlet are connected to each other so that the mixed gas is introduced into a room and mixed with combustion gas, and the mixed gas is discharged from a discharge port provided on the front surface of an exterior body.