JP4920368B2 - Radiant heater - Google Patents

Description

  The present invention relates to a radiant heater that heats a room with combustion gas generated by combustion in a burner section.

Conventionally, in this type of apparatus, a burner portion is directly provided in the heat radiating portion, and the front surface of the flat box-shaped heat radiating portion is heated to dissipate heat, thereby trying to heat the room well. (For example, refer to Patent Document 1.)
Japanese Patent No. 3566887

  By the way, in this conventional type, the combustion chamber of the burner part also serves as a radiator, and the combustion gas flows quickly, so that heating unevenness occurs in the heat radiating part, and uniform and efficient heat dissipation can be obtained. In addition, there was a risk of burning in a portion where heat was concentrated.

This invention pays attention to this point and solves the above-described problems. In particular, the structure is configured such that a cylindrical combustion chamber having a burner portion in the lower portion and a combustion chamber located above the combustion chamber are communicated with the combustion chamber. A first radiator through which the combustion gas circulates, a second radiator through which the combustion gas after circulation of the first radiator circulates, and a supply / exhaust cylinder for discharging the combustion gas after circulation through the second radiator to the outside In the configuration, the first radiator is in a trumpet shape with the front surface widened, and has a combustion gas inlet in the center of the lower rear portion to directly radiate heat by exposing the heat radiation surface of the front surface from the instrument body, The upper surface of the first radiator is a downwardly inclined surface facing the rear surface, and the second radiator is provided on the inclined surface .

According to the present invention, the combustion gas completely burned in the combustion chamber flows from the rear of the first radiator and is supplied while spreading toward the heat radiation surface of the front surface. By always releasing the radiant heat, good heating is always performed.
Further, the upper surface of the first radiator is an inclined surface, and the second radiator is provided here, so that the entire apparatus can be made compact, and the inclined surface can serve as a guide for blowing air to cool the radiator other than the front surface. Is performed well.

Next, the heat radiator based on this invention is demonstrated based on one Embodiment shown by drawing.
Reference numeral 1 denotes a burner unit which receives combustion air supplied from the combustion fan 2 and fuel supplied from a fuel supply means (not shown) and burns to generate combustion gas.

  3 has a burner portion 1 at the bottom and a rectangular tube-shaped combustion chamber having a viewing window 4 at the front, and a trumpet-shaped first radiator 5 that is narrow at the rear and widens toward the front. is doing.

  The first radiator 5 communicates with the combustion chamber 3 at the inlet 6 in the lower rear center, and a heat radiation surface 8 having a reinforcing bead 7 is provided on the front surface of the quadrangle. Is provided with a partition plate 10 in which a plurality of small holes 9 having a diameter of 3.5 mm are formed in this case, and a flow outlet 11 is provided on the right side.

  Further, far red paint is applied to the front side of the first radiator 5 to radiate far infrared rays, and a plurality of beads 12 are formed for reinforcement, and the upper surface of the first radiator 5 has a trumpet shape. From this shape, the inclined surface 13 is downwardly directed toward the back surface, and the air flow from a convection fan (not shown) from the back surface can be guided well forward.

  Reference numeral 14 denotes a second radiator in which the combustion gas after passing through the first radiator 5 flows in and flows through the outlet 11, and is located on the inclined surface 13 of the first radiator 5 and has a plurality of pipes arranged in parallel. Combustion gas whose temperature has been reduced due to heat radiation from the first radiator 5 circulates and exchanges heat with the air blown by the drive of the convection fan to discharge warm air into the room for heating.

  Reference numeral 15 denotes an air supply / exhaust cylinder connected to the second radiator 14, which exhausts the combustion gas whose temperature has been lowered by heat exchange to the outside of the room and supplies the outdoor air as combustion air.

  Next, the operation of this embodiment will be described. The combustion gas generated by the combustion of the burner unit 1 now flows from the combustion chamber 3 through the inlet 6 into the first radiator 5 where the combustion gas flows. Along the first radiator 5 that spreads in a trumpet shape from the inlet 6, it flows toward the heat radiation surface 8 on the front surface while spreading, and the flow rate is sufficiently suppressed by the partition plate 10 on the way, so that the entire first radiator 5 The heat radiation surface 8 as a whole is heated uniformly and quickly, and far infrared rays are directly radiated from the heat radiation surface 8 to enhance the heating effect.

  On the other hand, the combustion gas radiated by the first radiator 5 flows into the second radiator 14 from the outlet 11 and circulates in a plurality of pipes, and receives heat from the convection fan to exchange heat. Thus, the room is heated with the warm air instead of the warm air, and good heating can be performed with the far-red radiant heat and the warm air. Further, the convection fan blows the inclined surface 13 of the first radiator 5. As a guide, there is no obstruction and good heat exchange can be performed.

  Further, since the second radiator 14 is provided on the inclined surface 13, the second radiator 14 can be stored compactly without protruding upward, and the entire apparatus can be made compact without increasing the size of the entire apparatus. It can be a neat image.

  Further, the combustion gas exchanged by the second radiator 14 is exhausted to the outside of the room through a supply / exhaust tube 15 communicating with the second radiator 14.

Explanatory drawing of the heat radiator which attached | subjected one Embodiment of this invention. The exploded perspective view of the principal part. The side view of the principal part. The top view of the principal part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Burner part 3 Combustion chamber 5 1st heat radiator 8 Heat radiation surface 13 Inclined surface 14 Second heat radiator 15 Supply / exhaust pipe

Claims (1)

A cylindrical combustion chamber having a burner portion at the bottom, a first radiator located above the combustion chamber and in communication with the combustion chamber and through which the combustion gas flows, and a combustion gas after the first radiator has been distributed The first radiator has a trumpet shape with the front surface widened, and a second radiator that circulates and a supply / exhaust tube that discharges the combustion gas that has passed through the second radiator to the outside. , Has a combustion gas inlet at the center of the rear lower part and exposes the heat radiation surface of the front surface from the instrument body to directly radiate heat, and the upper surface of the first radiator is a downward sloping surface facing the back surface. A radiant heater having a second radiator.

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