JPH01306769A - Oil burning appliance - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an oil combustor that uses oil as fuel for heating purposes and the like.

BACKGROUND OF THE INVENTION Conventionally, this type of oil combustor B has had a 411 shaft as shown in FIGS. 4 and 5. That is, it consists of a combustion burner 2 built into the outer device, a heat exchanger 3, a fuel tank 4, and a hot air blower 6 that protrudes outward from the outer device and is fixed to the rear surface 5 of the exterior. The hot air blower ff1a16 is arranged on the side of the exchanger 3, and the hot air blower ff1a16 is arranged behind the heat exchanger 3, that is, on the upstream side, so that the impeller 8 of the warm air blower Ii6 faces the heat exchanger 3. Ta. Note that the combustion burner 2 is located inside the heat exchanger 3. On the other hand, the hot air blower 6 includes a bell mouth 7 opened on the rear surface 5 of the exterior, a propeller-type impeller 8 located concentrically inside the bell mouth 7, a motor 9 that drives the impeller 8, and a warm air blower 6. It consists of a fixed leg that fixes the wind blower 6 to the exterior rear surface 5 and a blower guard 10 that also serves as a guard to prevent foreign matter from entering the impeller 8, and an air intake port 11 to the impeller 8. uses the entire rear and side surfaces of the blower guard 10. Furthermore, a dustproof net 13 for suppressing suction of dust and the like is arranged on the inner surface of the blower guard 10, and a part of the blower guard 10 is made to protrude rearward to form a stopper 12. Further, a wind barrel 15 is provided around the outer periphery of the heat exchanger 3 in order to effectively bring the air into contact with the heat exchanger 3, and a heat shield plate 14 is provided between the wind barrel 15 and the fuel tank 4. It is arranged to block heat from the heat exchanger 3 and the like. Furthermore, a hot air discharge port 17 having a deflection plate 16 for deflecting the direction of the hot air to be discharged is provided on the front surface of the exterior. In addition, FIG. 5 shows a sectional view taken along the line ■-■ in FIGS. 4 and 4, and the caustic arrows indicate the flow of air.

In the oil combustor having the above structure, when the motor 9 is driven to rotate the impeller 8, air from outside the outer device is sucked into the outside device through the intake ports 11 on the rear and side surfaces of the blower guard 10, and heat exchange occurs. Warm air is discharged 11 as warm air through the vessel 3
17 to form a flow that is discharged again to the outside of the external device. On the other hand, the direction in which hot air is discharged from the hot air outlet 17 is determined by changing the angle of the deflection plate 16 provided at the hot air outlet 1117.

Problems to be Solved by the Invention However, in the above structure, since the hot air discharge direction is changed depending on the angle of the deflection plate 1 (3), there is a problem in that it is not possible to take a large internal angle. If the size is increased, there is a problem that the blower load due to the deflection plate 16 increases, and the sudden deflection of the wind direction causes significant noise in the deflection plate 16.Furthermore, there is a problem that the blower load due to the deflection plate 16 increases, and significant noise is generated by the deflection plate 16. Most of the air is sucked in through the intake port 11 on the rear face of the blower guard 10, and some of the air is sucked in through the intake port 11 on the side face of the blower guard 10. Therefore, for example, if the rear face of the combustion equipment is brought close to the wall of a house, If the air is used in a
17, suction [111] There was also the problem that the flow would always be dangerous, such as flowing in the direction of the force.For this reason, the stopper 12 was not installed to prevent backflow from occurring on the rear side of the blower guard 10. At present, consideration has been made to maintain a minimum space, but since the amount of air flowing in from the intake port 11 on the rear side is significantly reduced, it is necessary to always place a considerable amount of EM from the wall. There was a problem.

The present invention solves these conventional problems by using a centripetal blower that sucks in air from the radial direction of the impeller and discharges it in the axial direction. By further arranging the blower control means upstream of the blower, it is possible to deflect the hot air discharge direction with low noise and over a wide angle. The purpose is to provide a combustor that can maintain safety.

To solve the above-mentioned problems, an oil combustor of the present invention includes a heat exchanger, a hot air blower, and a refueling tank inside the exterior, and a connection between the refueling tank and the heat exchanger. A warm air blower is located between the hot air blower and a warm air blower is placed downstream of the hot air blower.
A heat exchanger is placed opposite the impeller of t, and a fuel tank is placed behind it, and the hot air blower li% uses a centripetal type blower that sucks in the radial direction of the impeller and discharges it in the axial direction. An inlet is provided on the side surface of the exterior, a hot air discharge [1 is provided on the front of the exterior on the downstream side of the heat exchanger, and mti/+ control means is provided upstream of the hot air blower.

Operation The oil combustor of the present invention has the above-described configuration, which allows the discharge direction of hot air to be deflected with low noise and over a wide angle. It is possible to always secure the necessary amount of hot air without being affected by the surrounding space conditions, and to maintain safety at all times.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows an oil combustor according to an embodiment of the present invention 113!
1 is a vertical sectional view, and FIGS. 2 and 3 are I-
FIG. 2 shows the case where the hot air volume is large, and FIG. 3 shows the case where the hot air volume is small. As shown in FIGS. 1 to 3, the oil combustor A includes a combustion burner 22, a heat exchanger 23, a fuel tank 24, and a hot air blower 26 inside an exterior 21. A warm air blower 26 is installed between the heat exchanger 23 and the heat exchanger 23.
and the heat exchanger 23 is arranged downstream of the hot air blower 26 facing the impeller 28 of the hot air blower fi 26, and the oil tank 24 is arranged behind the hot air blower 26. It consists of

Note that the combustion burner 22 is located inside a cylindrical heat exchanger 23. On the other hand, the hot air blower 26 is connected to the heat exchanger 2
A heat exchanger side guide plate 31 and a fuel tank side guide plate 32 are arranged between the heat exchanger side guide plate 31 and the fuel tank side guide plate 32, which are arranged approximately in parallel between the heat exchanger side guide plate 31 and the fuel tank side guide plate 32 to partition the two and form the ventilation passage 25 between the two.
i:Ill! 1 Opening in guide plate 31 1. Bellmouth 27
The impeller 28 consists of a small impeller 28 which is arranged concentrically inside the ventilation passage 25 and a motor 29 which is fixed to the fuel tank side guide plate 32 and drives the impeller 28. A centripetal blower is used that sucks air in from the radial direction and discharges it in the axial direction. The upstream side of the ventilation passage 25 is the exterior 21
An open suction port 30 is provided on the side surface of the gA21 to communicate with the outside of the external gA21, and a flat plate 33 is provided inside the suction port 30.
An air volume control means is provided which includes a damper mechanism 35 that controls the flow of intake air by rotating the ventilation passage 25 and changing the ventilation resistance of the ventilation passage 25.

Furthermore, in order to effectively bring the air into contact with the heat exchanger 23 and at the same time to effectively deflect the hot air, the outer periphery of the heat exchanger 23 has a downstream end with a substantially arc-shaped cross section and an outward shape. A wind cylinder 37 formed to expand is provided, and almost the entire surface of the exterior front surface 36 is covered with a hot air outlet 34 using a perforated plate or the like.
has been established. Note that solid arrows indicate air flow.

When the motor 29 is driven and the impeller 28 is rotated in a state Yr3 (not shown in FIG. 2), in which the damper 14135 is fully opened and the amount of intake air is moderate, an opening DI is created on the side of the exterior 21. Air outside the exterior 21 is sucked into the interior of the exterior 21 from the suction port 30 , and flows through the ventilation passage 25 formed between the heat exchanger 23 and the fuel tank 24 to the heat exchanger 2 .
3, the hot air flows to the exterior 21 again from the hot air outlet 34 as hot air.
It forms a flow that is drawn out to the outside and is used for heating. However, since the hot air blower HAlfi2B uses a centripetal blower that sucks air from the radial direction of the impeller 28 and discharges it axially, the influence of the centrifugal force of the impeller 28 is relatively small when the air volume is large. , the flow becomes concentrated in the direction of the rotation axis of the impeller 28. On the other hand, when the damper am35 is rotated to reduce the amount of intake air as shown in FIG. 28 becomes a dispersed flow directed outward from the direction of the rotation axis. That is, by controlling the easy slope flowing into the feeder JjA 1, turbulence in the airflow is suppressed and a flow concentrated in front of the oil combustor A and a flow dispersed to the front side are obtained with low noise. It is something that can be done. Furthermore, hot air supply IJ'iL 1
112 Is G centripetal? (°! Since the blower is used, sufficient air blowing performance can be obtained even if the air flowing from behind the impeller 28 is hot. Also, the heat exchanger 23
Since there is a ventilation passage 25 between the and fuel tank 24,
The impeller 28 transfers heat from the heat exchanger 23 to the fuel tank 24 by 31! At the same time, the temperature rise of the fuel tank 24 can be suppressed by forced cooling by the air flow of the ventilation passage 25, and the structure is in the cylinder without the need for a heat shield plate. The oil combustor of the invention has the following effects. In other words, (1) Since the air volume is controlled by the air volume control means provided on the suction side of the hot air blower, the discharge direction of the hot air is deflected, and the turbulence of the air flow caused by the deflection is greatly suppressed, resulting in a low ! i
R allows wide-angle deflection.

(2) When the airflow is large, the flow becomes concentrated, and when the airflow is small, it becomes a dispersed flow, and during strong heating, the flow is concentrated in front of the oil combustor, allowing rapid heating of the room. On the other hand, during weak heating, the air flow is small and a dispersed flow is formed to provide mild heating, and at the same time, since the air flow does not come into direct contact with the human body, the air flow does not cause discomfort.

(3) A centripetal blower is placed between the heat exchanger and the fuel tank, and the inlet is installed on the side of the exterior to suck in air from outside the exterior, so it is not affected by the spatial conditions behind the oil combustor.
The required amount of airflow can be ensured at all times. Therefore, it is possible to use the rear face of the oil combustor in close contact with the wall of a house, etc., and the usability can be greatly improved.

(4) Since there is a ventilation path between the heat exchanger and the fuel tank, the impeller shields the fuel tank from heat from the heat exchanger, and at the same time, it is forced to cool down by the air flow flowing through the ventilation path. The safety against hot air from the fuel tank can be greatly improved, a heat shield plate, etc. is no longer necessary, and the structure can be simplified.

[Brief explanation of the drawing]

Fig. 1 is a width-measured sectional view of an oil combustor according to an embodiment of the present invention, Figs. 2 and 3 are sectional views taken along the line I-1 in Fig. 1, and Fig. 4 shows a conventional example. FIG. 5 shows a cross-sectional view taken along the line ■-B in FIG. 4. A... Ti oil combustor, 21... Exterior, 23... Heat exchanger, 24... Oil supply tank, 26... Hot air blower, 28... Impeller, 30... Inhalation [l, 34...
・Warm air discharge [1, 35... Damper mechanism (air volume control 1
1 stage), 3G... Exterior front. Agent Yoshihiro Morimoto 1st figure 26・Encounter & 1: i wind machine z3・g) 7 test car figure 2,) 0-El entry 0 figure 3 figure 4 figure 5

Claims (1)

[Claims] 1. A heat exchanger, a hot air blower, and a refueling tank are provided inside the exterior, and the hot air blower is located between the refueling tank and the heat exchanger, and a hot air blower is located downstream of the hot air blower. A heat exchanger is disposed opposite to the impeller of the blower, and a fuel tank is disposed behind the blower, and the hot air blower uses a centripetal blower that sucks air from the radial direction of the impeller and discharges the air in the axial direction. An oil combustor having an inlet on the side surface of the exterior, a hot air discharge port on the front surface of the exterior downstream of the heat exchanger, and an air volume control means upstream of the hot air blower.