JPH023088Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Technical field of the invention] This invention prevents the hot air from rising by blowing cold air uniformly taken in from the propeller fan from above the hot air.
This relates to an oil hot air heater that aims to equalize indoor temperature.

[Prior art]

Conventionally, there have been hot air heaters of this type as shown in FIGS. 1 and 2. In the figure, 1 is a burner part with a flame port 1a open in the hot air wind tunnel A, 2 is an oil tank that contains fuel, 3 is an oil tray that keeps the oil supplied from this oil tank 2 at a constant level, and 3a is a A constant oil leveler keeps the amount of oil supplied to the burner section 1 constant. Reference numeral 4 indicates an oil supply pipe connecting the oil pan 3 and the oil level regulator 3a, and 5 indicates a combustion tube that surrounds the flame port 1a of the burner section 1 and protrudes into the wind tunnel A, with a buttful plate 5 at the opening.
A is provided. Reference numeral 6 denotes a partition plate that divides the interior of the wind tunnel A into upper and lower sections, and a cold air wind tunnel B is formed between the partition plate 6 and the guide plate 7. 8 is the casing of the heater, 8a is the front upper case, 8b is the front lower case, and 8c is the back case. 9 is a propeller fan placed on the back side of the wind tunnel A and the partition plate 6; 10
is the motor that drives this fan 9, and the back plate 10
The back plate 10a is fitted into the back case 8c. Reference numeral 11 denotes a hot air blowing grill, which is provided at a hot air blowing outlet 12 formed on the front side. Reference numeral 13 denotes a cold air outlet grill provided at the cold air outlet 14 above the hot air outlet 12 . 1
5 is the base plate of the heater.

Next, the operation will be explained. High-temperature combustion gas from the burner section 1 exits from the combustion tube 5 to the back side of the wind tunnel A by the baffle plate 5a. The high-temperature combustion gas in the wind tunnel A is mixed with the cold air from the propeller fan 9, becomes hot air, and is blown into the room from the hot air outlet 12. On the other hand, a part of the cold air from the propeller fan 9 passes through the cold air wind tunnel B and is blown out from the cold air outlet 14, thereby suppressing the rise of the warm air.

In the conventional oil hot air heater as described above, the wind speed from the propeller fan 9 is generally slower toward the right and faster toward the left, as shown in Figure 2.
The wind speed is uneven, especially on the cold air outlet 14. Therefore, on the right side where the wind speed is high, the cold air strongly pushes the hot air downward, and the hot air is blown against the floor surface, so the floor surface temperature decreases. increases excessively,
There were drawbacks such as uneven room temperature distribution.

[Summary of the idea]

This idea was made in order to eliminate the drawbacks of the conventional ones as described above, and at the rear end of the partition plate that separates the hot air wind tunnel and the cold wind wind tunnel, an area is placed on the slow wind speed side of the propeller fan. By providing a wide guide plate and a narrow guide plate on the side where the wind speed is high, and installing a ventilation fence between these two guide plates, the amount of air guided to the cold air wind tunnel is uniform, and the warm air is blown. It is an object of the present invention to provide an oil hot air heater that can even out the room temperature distribution.

[Example of idea]

An embodiment of this invention will be described below with reference to the drawings. In FIGS. 3 and 4, the same reference numerals as in FIGS. 1 and 2 indicate the same parts, and explanations thereof will be omitted. At the rear end of the partition plate 6 (propeller fan 9 side), there is a guide plate 16a with a large area on the side of the propeller fan where the wind speed is slow (on the right side in FIG. 4), and a guide plate 16b with a narrow area on the side where the wind speed is fast. is provided to equalize the amount of air guided to the cold air wind tunnel B. Reference numeral 16c denotes a blower fence installed between the guide plates 16a and 16b, which prevents the slow wind from the propeller fan 9 from sliding sideways and flowing toward the guide plate 16b, which has a higher wind speed. Thereby, the air blown from the propeller fan 9 can be uniformly guided into the wind tunnel B on the left and right sides.

FIG. 5 shows the conventional hot air trajectory. When the cold air 17 with a high wind speed is strongly blown against the hot air 18, the trajectory of the hot air is pushed downward and hits the floor surface 19. There was a risk that the surface temperature would suddenly rise and the tatami mats etc. would be discolored, but according to the hot air trajectory of this invention shown in Fig. 6, the cold air 17a blown out from the cold air outlet 14 that is equalized left and right is the warm air 18a. Since the hot air 18a hits the floor surface 19a well, the temperature distribution near the feet is improved. Note that there is a risk of hot air 18 shown in Figure 5 depending on the ratio of cold air volume to hot air volume and the angle at which the cold air is blown, so the cold air volume should be about 20% of the hot air volume and the cold air blowing angle should be 25 degrees. .

[Effect of idea]

As described above, according to this invention, a guide plate with a large area is provided on the slow wind speed side of the propeller fan at the rear end of the partition plate that partitions the hot air wind tunnel and the cold air wind tunnel.
A guide plate with a narrow area is installed on the side where the wind speed is faster, and a ventilation fence is erected between these two guide plates.
The air from the propeller fan can be guided uniformly into the wind tunnel on both sides, and the ventilation fence can prevent the cold air introduced into the cold air wind tunnel from sliding sideways from the slow wind speed side to the fast wind speed side. The blowing of the wind is made uniform, and as a result, the warm air flows across the floor surface, making the indoor temperature distribution uniform and providing comfortable warm air heating.

[Brief explanation of the drawing]

Figure 1 is a side sectional view of a conventional oil hot air heater, Figure 2 is a partially broken rear view, Figure 3 is a side sectional view of the oil hot air heater according to this invention, and Figure 4 is a partially broken side view. The rear view, FIG. 5 is a diagram of the conventional hot air trajectory, and FIG. 6 is a diagram of the hot air trajectory of this invention. 1... Burner part, 5... Combustion tube, 6... Partition plate, 9... Propeller fan, 12... Hot air outlet, 14... Cold air outlet, 16a, 16b... Guide plate, 16c... Air blower Fuens, A...wind tunnel for hot air, B...wind tunnel for cold air. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] In an oil hot air heater in which a combustion tube is protruded into the wind tunnel of a heater casing that has a propeller fan for blowing air on the back side and a hot air outlet on the front side, and a burner part is provided in the combustion tube. The inside of the wind tunnel is divided by a partition plate into an upper wind tunnel for cold air and a lower wind tunnel for hot air, and at the rear end of the partition plate there is a guide plate with a large area on the slow wind speed side of the propeller fan, and a guide plate with a large area on the slow wind speed side of the propeller fan. An oil hot air heater characterized in that a guide plate with a narrow area is provided on the faster side, and a ventilation fence is installed between the guide plates.