JPH06100380B2 - Combustor for heating - Google Patents

Description

TECHNICAL FIELD The present invention relates to a household / commercial heating appliance.

2. Description of the Related Art An example of a conventional heating appliance will be described with reference to FIGS.

In the figure, 1 is a burner, 2 is a combustion cylinder of the burner 1, and has a wide window 2a. 3 is a heat exchanger, 4 is a blower for supplying combustion air, and the air sent from the blower 4 is branched into a primary air passage 5 and a secondary air passage 6 and is supplied to the burner 1. Reference numeral 7 is a pump for supplying fuel to the burner 1, 8 is an exhaust port for fuel gas, and 9 is an exhaust pipe. Reference numeral 10 is a red heating element provided in the combustion chamber 2. 11 is a convection fan that blows warm air for heating. Reference numeral 12 is a heat shield plate that separates the combustion cylinder 2 from the control unit 13 provided at a proper position in the instrument body 16. Reference numeral 14 is an outlet provided at the bottom of the instrument body. Reference numeral 15 is a top plate attached to the upper part of the instrument body and has an opening 15a.

The operation of the thus constructed heating appliance will be described. First, the combustion air sent from the blower 4 and the pump 7
The fuel sent from the burner 1 mixes in the burner 1 to form a flame and burns in the combustion tube 2, and the red heating element 10 is heated by the flame to supply radiant heat to the front surface of the instrument body 16. The fuel gas burned in the combustion tube 2 passes through the heat exchanger 3 and is exhausted from the exhaust port 8 to the exhaust pipe 9. At this time, the hot air that has exchanged heat from the outer wall of the combustion tube 2 by the convection fan 11 is blown from the air outlet 14 provided at the lower front surface of the instrument body 16.

However, in the above-mentioned configuration, as shown in FIGS. 7 and 8, a part of the wind generated by the convection fan 11 exchanges heat with the outer wall of the combustion tube 2 and the device blows out from the blowout port 14. The air is blown to the outside of the main body 16, but part of it is convected in the main body 16 of the device and then the arrow A
As described above, there is a risk that the temperature of the instrument main body 16 is raised because it flows out of the instrument from the opening 15a of the top plate 15, and the user feels hot when the instrument main body is touched with a hand. Further, the control unit 13 causes the heat shield plate 12 to radiate heat from the combustion cylinder 2 and the convection fan 11 to cause the combustion cylinder 2 to move.
Although the hot air that has undergone more heat exchange is blocked, the cooling air does not flow, and the temperature of the control unit 13 rises over time, which shortens the life of the parts.

Further, since there is a strong demand for high-temperature air and high-radiation heating equipment today, the above problems have become more prominent. As the width of the instrument body 16 increases, if the instrument body 16 is installed near the wall of the room as shown in FIG. 8, the temperature of the wall surface B becomes extremely high due to the radiant heat from the combustion cylinder 2. Discoloration of the wall surface B, danger of fire, safety such as burns when the user's body touches the wall surface B, and usability were just a step away.

The present invention has been made in view of the above problems, and enables heating by warm air and radiant radiation while reducing the temperature of the entire main body, and effectively uses the heat of the heat source body to improve the heat exchange rate.

Means for Solving the Problems In order to solve the above problems, the heating combustor of the present invention is
A partition plate surrounding the rear outer periphery of the combustion cylinder is provided, and a rear surface of the partition plate facing the rear surface of the main body of the partition plate is provided with a through hole on the outer periphery of the combustion cylinder for allowing air from a blower to flow therethrough. All the air flows through the through holes and is blown only from the hot air outlets provided on both sides of the combustion cylinder, so that the hot air does not circulate in the instrument body. Further, it is configured so that, except for the warm air generated by the blower, it flows around the outer periphery of the main body of the appliance and the control unit and flows out of the appliance.

Action The present invention has the above-described configuration and is capable of responding to the demand for high-temperature air and high-radiation radiation of a combustion appliance, and can provide a safe heating appliance with a simple heat-shielding structure, while effectively utilizing heat. It is possible to reduce the running cost of the heating equipment.

Example A heating combustor according to an example of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. Reference numeral 20 is an instrument body, 20a is a cabinet body, and 21 is a burner provided in the instrument body 20, which is placed on a pedestal 21a. 22 is a combustion cylinder having a wide window 22a and a red heating element 22b, and 23 is a heat exchanger, which communicates with an exhaust pipe 25. A pump 26 supplies fuel to the burner 21, and is supplied to the mixing chamber 27 of the burner 21 together with the primary air. Reference numeral 28 is a burner blower for supplying combustion air to the burner 21, and the air sent from the burner blower 28 is branched into a primary air passage 29 and a secondary air passage 30.
Supplied to 21. 31 is a main body of equipment for blowing warm air for heating
It is a blower mounted on the back of 20. 32 is a wide window 22a
Are attached to the cabinet front frame 32a by air outlets provided on both sides of the. 33 is a control unit. Reference numeral 34 is a partition plate surrounding the rear outer periphery of the combustion cylinder 22, and a through hole 34a is provided in the rear surface portion of the partition plate 34 facing the blower 31. 35 has a through hole 35a,
A burner partition plate integrally attached to the partition plate 34, 36
Is a top plate attached to the upper part of the appliance body 20, and has an opening 36a at a portion facing the heat exchanger 23. Reference numeral 37 is a front of the cabinet, and 38 is a guard that protects the width of the instrument body 20.

The operation of the combustion device configured as described above will be described below. First, the burner blower 28 is started and the pump
26 is driven. Primary air is burner from the primary air passage 29.
It is supplied to the mixing chamber 27 in 21 and the fuel is sent to the mixing chamber 27 by the pump 26. The fuel and primary air mixed in the mixing chamber 27 form a primary flame in the burner 21, and the secondary air passage 30
It mixes with the secondary air passing therethrough and burns in the combustion cylinder 22, causing the red heating element 22b to become red-heated and supplies the radiant heat to the front of the instrument body 20 through the radiating window 22a. The fuel gas flows from the combustion tube 22 to the heat exchanger 23.
To the exhaust pipe 25, and is discharged to the outside of the room. Further, a part of the wind generated by the blower 31 passes through the through holes 34a provided in the partition plate 34, and the combustion cylinder 22
The partition wall 34 surrounding the rear outer periphery of the combustion chamber 22 and the burner partition plate 35 integrally attached to the partition plate 34 and the heat exchanger 23 surrounded by the heat exchanger 23, and the outer wall of the combustion tube 22 becomes hot. The heat is exchanged to form warm air, which is blown from the air outlets 32 provided on both sides of the wide window 22a. At this time, the wind that has flowed into the heat exchange chamber S does not flow out into the instrument body 20 other than the heat exchange chamber S because the heat exchange chamber S is one sealed room. Further, the red heating element 22b provided in the combustion cylinder 22 supplies the radiant heat from the front surface of the instrument body 20 through the radiant window 22a, and the radiant heat is generated by the instrument body 20 as shown in FIG. When installed near the wall L, the wall L directly receives the radiant heat, but the radiant window 22a and the wall L
Since a hot air blown from the air outlet 32 forms an air heat insulating layer between and, the temperature of the wall surface does not become abnormally high and there is no fear of discoloration of the wall surface. Further, part of the wind generated from the blower 31 flows into the outer periphery of the control unit 33 provided at a proper position in the rear outer peripheral space H of the partition plate 34, cools the control unit 33, and then passes through the outer periphery of the heat exchanger 23. , Heat is exchanged from the heat exchanger 23, passes through the upper rear space T of the appliance body 20, and
The opening 36a of 36 allows the heat to escape to the outside of the appliance main body 20, so that the thermal efficiency of the heating appliance can be improved. Further, the wind that flows through the rear outer peripheral space H of the partition plate 34 is
It also helps to reduce the temperature of the exterior surface of the.

In this way, by distinguishing the air flowing through the appliance body 20 into the hot air for warm air heating and the air for cooling the appliance body 20 and other components, efficient warm air and radiant heating Can be done.

EFFECTS OF THE INVENTION As is apparent from the above description of the embodiments, according to the present invention, in addition to temperature heating while achieving temperature reduction of the appliance body, radiant heating is realized with a very simple heat shield structure, and the control unit It is possible to provide a heating appliance that is convenient, rational, and has high safety, such as improving the life quality of the product and reducing the wall temperature by using warm air from the hot air.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a main part of a heating appliance showing an embodiment of the present invention, FIG. 2 is a horizontal sectional view of the same part, and FIG. 3 is an exploded perspective view of the same.
FIG. 4 is the same sectional view, FIG. 5 is the same front view, FIGS. 6 to 8 are sectional views of a conventional heating appliance, and FIG. 9 is the same front view. 21 …… Burner, 22 …… Combustion tube, 23 …… Heat exchanger, 31 ……
Blower, 34 ... Partition plate, 35 ... Burner partition plate.

Claims (1)

[Claims] 1. A main body containing a heat source body composed of a burner, a combustion cylinder and a heat exchanger, a partition plate surrounding at least the rear outer periphery of the combustion cylinder of the heat source body, and a main body facing at least the combustion cylinder of the heat source body. A radiant window provided on the front surface, a blower that is provided on the rear surface of the main body behind the partition plate, and that supplies air to the outer periphery of the combustion cylinder from a through hole provided on the rear surface of the partition plate, and the wind from the blower to the front. Hot air outlets provided on both sides of the radiant window so as to blow out, an opening provided on the top plate portion of the main body facing the heat exchanger of the heat source body, and a proper position in the rear outer peripheral space portion of the partition plate. A control part is provided, and the opening part of the top plate is communicated with the rear outer peripheral space part of the partition plate so that a part of the wind from the blower can escape from the outer part of the control part to the upper part of the heat exchanger through the outer part of the heat exchanger. Combustor for heating.