JP2552547B2 - Radiant heater - Google Patents

Description

TECHNICAL FIELD The present invention relates to a radiant heater that heats a red heating element incorporated in a translucent combustion cylinder with a burner to make it red heat to perform radiant heating.

(B) Conventional technology In the conventional radiant heater of this type, for example, in Japanese Utility Model Publication No. 61-24
As disclosed in Japanese Patent No. 819, a translucent combustion cylinder containing a red heating element is exposed to the open surface of the front part of the outer case, and the radiant heat of the red heating element is radiated into the room through the combustion tube and the opening surface. I am trying to do it.

(C) Problems to be solved by the invention In the radiant heater described above, the radiant heat is radiated from the open surface of the front part of the outer case, so the radiation angle of the radiant heat is small, and the radiant heat is emitted to the customer in the corner of the room. Not only is it difficult to reach, but it also has the drawback that the temperature inside the outer case and the exhaust gas temperature tend to rise.

Further, in the above-described radiant heater, since the operation part is arranged in the lower part of the front surface of the outer case below the open surface, it is difficult for the customer to operate the device in a standing posture. .

The present invention has been made in view of the above-described facts, and an object of the present invention is to provide a radiant heating device that can reduce the installation area while increasing the radiation angle of radiant heat and that can be operated easily. I am trying.

(D) Means for Solving the Problems In the present invention, a burner, a translucent combustion tube having a built-in red heating element, and a heat exchanger are sequentially connected in the vertical direction to form a substantially tubular overall shape. A vertically elongated exterior case accommodating the combustion device, and an arc-shaped cross section that is provided in the exterior case and exposes the front and side portions of the combustion cylinder and the front portion of the heat exchanger, and is vertically long. An open surface, a protective guard having an arcuate cross section attached to the outer case so as to cover the open surface, an outwardly inclined portion provided on the front surface portion of the outer case on the side of the open surface, and It is the structure provided with the operation part provided in the upper part of the direction inclination part.

(E) Action With this configuration, since radiant heat is radiated from the front and side portions of the combustion cylinder of the combustion device through the protective guard,
With a large radiation angle, the radiant heat from the combustion cylinder can be spread over a wide area in the room, and the heat from the heat exchanger is also radiated through the open surface, so that the heat does not stay inside the outer case. .

By removing the protective guard, the combustion device can be exposed over a wide area from the open surface, making it easy to inspect the combustion device and not only providing excellent serviceability, but also the exterior case is formed in a vertically long shape, Since the burner, the combustion tube, and the heat exchanger are vertically connected to each other in the vertically long exterior case and the combustion apparatus having a substantially tubular shape as a whole is housed, the apparatus can be installed compactly.

Since the operation unit is located at the high position of the vertically long exterior case, the customer can operate the device in a comfortable posture while standing.

Since the operating part is arranged on the outwardly inclined part, the operating part will face away from the combustion tube and heat exchanger,
There is no concern that the radiant heat from the combustion cylinder or the heat exchanger will cause the operating part to become hot or will be thermally deformed.

(F) Embodiment Hereinafter, an embodiment of the present invention shown in the drawings will be described.

In FIG. 1 to FIG. 8, (1) is a vertically long outer case, and this outer case (1) is composed of a horizontally long rectangular part (2A) and a fan-shaped protruding part (2B) protruding forward. The top plate (2), the back plate (3), and the front surface portions located on both left and right sides of the open surface (8) described below are outwardly inclined portions (4A) (5A) that are inclined outwardly. Of the left and right side plates (4) and (5), a horizontally long rectangular part (6A), and a semicircular protrusion (6B) larger than the protrusion (2B), and a bottom plate (6). A skirt plate (7) raised obliquely inward from the outer peripheral edge of the protrusion (6B), and the outer peripheral edge of the protrusion (2B) of the top plate (2) and the upper edge of the skirt plate (7). An open surface (8) having an arcuate cross section is formed between and. A protective guard (9) having an arc-shaped cross section is also attached to the open surface (8) so as to be openable and closable or detachable. Inside the outer case (1), a burner (10), a combustion tube (12) made of a translucent material such as glass and having a built-in red heating element (11), a connecting case (13),
A combustion device (A) in which a plurality of heat exchange pipes (14A) (14B) are arranged in concentric circles inside and outside, and an exhaust hood (15) are sequentially connected vertically from bottom to top. ) Is provided. The combustion device (A) has a substantially tubular shape as a whole, and the axial center of the combustion device (A) is aligned with the approximate center of the top plate (2) so that the front portion and both sides of the combustion tube (12) of the combustion device (A). The part and the front part of the heat exchanger (14) are exposed to the open surface (8) (see FIGS. 2 and 4). Further, (16) is a vertical reflector having an arcuate cross section surrounding the outer periphery of the combustion device (A) excluding the open surface (8), and (17) is a horizontal reflector provided in the lower part of the outer case (1), (18) is a heat shield provided between the exhaust hood (15) and the top plate (2),
(19) is a blower facing the air intake (20) of the back plate (3) behind the heat exchanger (14), (21) is a back guard,
(22) is an air filter device, (23) is a stand, (24) is an electric box inspection lid provided on the right side plate (5), (25)
Is an operation panel provided on the outwardly inclined portion (5A) of the right side plate (5), an electric equipment box (26) is provided inside the right side plate (5), and inside the left side plate (4). An exhaust pipe (27) connected to the left end of the exhaust hood (15) is provided in the vertical direction (see FIGS. 2 and 4). The exhaust pipe (27) penetrates the back plate (7) and is led out into the back guard (21). Further, an opening (28) is provided in the vertical reflector (16) in front of the blower (19).

The burner (10) includes a burner fan (29), a rotary cone (30) and a motor (32) that drives a stirring plate (31),
Fan case (33), vaporization cylinder (35) having heater (34), burner head (36), and burner case (37)
A spark plug (38), a flame rod (39), a fuel pipe (40) for supplying liquid fuel such as kerosene to the vicinity of the rotary cone (30), a fuel pump (41), and a burner case (37). And an air supply pipe (42) that is connected to the rear plate (3) and is led out to the lower part in the back guard (21).

The combustion cylinder (12) has an annular bushing (4) attached to a mounting flange (43) fixed at the lower end to the upper portion of the burner case (37).
4) is held through. The upper end of the combustion tube (12) is held by the outer peripheral edge flange (45) of the upper lid (13A) of the connection case (13) via an annular bushing (46). Then, by connecting the mounting flange (43) and the outer peripheral flange (45) with a plurality of bolts (47),
A combustion tube (12) is airtightly attached to the burner (10) and the connection case (13). As shown in FIG. 6, the red heating element (11) is provided in the direction of the central axis in the combustion tube (12), and has a long red plate-shaped first red heating plate (11A) curved in an arc and the combustion tube (12).
And a disk-shaped second red hot plate (11B) installed laterally so as to be orthogonal to the central axis of. These red hot plates (11
A) (11B) is, for example, high chrome stainless steel (SUH-21)
Is made of. The second red hot plate (11B) is the connecting case (1
3) It is fixed by spot welding to the downward projection (13C) in the center of the lower lid (13B). In addition, the first red hot plate (11
A) is a second red hot plate (1
1B) and the cutout holes (not shown) of the protrusion (13C) are sequentially inserted and then bent, and then the stepped outer peripheral edge of the disc (47) spot-welded to the inner wall of the protrusion (11C). It is fixed by holding down. The upper lid (13A) of the connection case (13) has a heat exchange pipe (14A) of the heat exchanger (14).
A plurality of holes (48A) and (48B) for connecting (14B) are provided on the inner and outer concentric circles. Further, the lower lid (13B) is provided with a plurality of holes (49) through which the combustion gas bypassed by the second red hot plate (11B) flows. This hole (49) is filled with the combustion gas flowing into the connection case (13) (48A) (48A).
It is opened in the middle position of both holes (48A) (48B) so that it is evenly distributed in B). Inside the heat exchange pipes (14A) (14B) of the heat exchanger (14), bent strip-shaped baffle plates (50) are provided. The exhaust hood (15) has a bottomed cylindrical material (15A) that opens downward and a heat exchange pipe (14
Lower lid (15) having a hole to which the upper ends of (A) and (14B) are joined.
B) and consists of a heat exchange pipe (14A) inside
An arc-shaped baffle plate (51) located on the outer circumference of the gas outlet of (14B) and open at the right end opposite to the left end to which the exhaust pipe (27) is connected is located above the exhaust hood (15). It is hanging. A slight gap is left between the lower end of the baffle plate (51) and the lower lid (15B) (see FIGS. 7 and 8).

The air supply pipe (42) led out into the back guard (21)
And the exhaust pipe (27) is connected to the wall of the building (5
It is connected to the air supply / exhaust pipe (53) that is installed through the 2).

When the fuel pump (41) operates, the liquid fuel stored in the fuel tank (not shown) is jetted toward the rotary cone (30) through the fuel pipe (40). The fuel scattered by the centrifugal force of the rotary cone (30) hits the inner wall of the vaporization cylinder (35) which has been heated by the heater (34) in advance and is vaporized. This vaporized fuel passes through the air supply / exhaust pipe (53) and the air supply pipe (42), is mixed with the air sent by the burner fan (29), and then is ejected from the flame opening of the burner head (36) to form an ignition plug. It is ignited at (38). In this way, when gasification and combustion are performed in the burner (10), the combustion gas rises in the combustion tube (12), and the first red hot plate (11A) and the second red hot plate (11B) are red hot. Let The radiant heat is radiated into the room at a wide angle through the open surface (8) and the protective guard (9) directly or after being reflected by the reflection plates (16) and (17). Further, the combustion gas that has turned to the outer peripheral direction by hitting the second red hot plate (11B) enters the connection case (13) while bypassing the second red hot plate (11B), and the inside heat exchange pipe ( Instead of concentrating on 14A), it diffuses and flows into both the inner and outer pipes (14A) (14B). Further, although the exhaust pipe (27) is connected to the left side of the exhaust hood (15), it is located inside the exhaust hood (15) on the outer circumference of the heat exchange pipes (14A) (14B). Since the baffle plate (51) opened on the right side is provided, the combustion gas flowing into the heat exchanger (14) does not concentrate on the left side pipe. The room air supplied to the heat exchanger (14) by the blower (19) is heated by exchanging heat with the combustion gas flowing through each pipe, and is discharged as warm air into the room. On the other hand, the exhaust gas that has finished the heat exchange gathers inside the baffle plate (51) in the exhaust hood (15), and a part of it passes through the gap under the baffle plate (51),
In addition, the rest enters the exhaust pipe (27) from the open portion of the baffle plate (51) through the outer periphery of the baffle plate (51) and is diffused to the outside from the air supply / exhaust pipe (53).

According to this embodiment, the front part and both sides of the combustion tube (12) of the combustion device (A) and the front part of the heat exchanger (14) are exposed to the open surface (8) of the outer case (1). , Combustion device (A)
Other parts (upper, lower, back, etc.) of the outer case (1)
Since the open surface (8) is covered with a protective guard (9), the radiation angle of radiant heat can be increased compared to the conventional one in which only the front part is exposed, while ensuring safety. If it is installed near the wall of the room, radiant heat can be supplied to every corner of the room. Also, the outer case (1)
It is possible to prevent the temperature inside the outer case from rising abnormally without worrying about heat being trapped inside. Further, not only the radiant heat from the red heating body (11) but also the heat radiation from the heat exchanger (14) can be used to perform warm air heating, and the exhaust gas temperature can be sufficiently lowered to greatly improve the thermal efficiency. It is possible. Further, since the combustion device (A) is exposed when the protective guard (9) is removed, maintenance and inspection of the combustion device can be easily performed, which is not only excellent in serviceability but also each component of the combustion device. Is installed vertically, and the installation area can be reduced. Also,
Since the operation panel (25) is located above the front part of the vertically long exterior case (1), the customer can operate the switches arranged on the operation panel (25) in a comfortable posture while standing. . Furthermore, since the operation panel (25) is provided on the outwardly inclined portion (5A) of the right side plate (5) of the outer case (1), the operation panel (25) is the combustion tube (12) and the heat exchanger. (14) It will face away from the combustion cylinder (1
The surface of the operation panel (25) will not become hot and will not be deformed by heat radiated from the heat exchanger (14) and the heat exchanger (14).

(G) Effect of the Invention Since the radiant heater according to the present invention is configured as described above, it has the following effects.

A large radiation angle allows the radiant heat from the combustion cylinder to be spread over a wide area in the room, and the heat exchanger can also radiate heat through the open surface, effectively releasing the heat into the room. , The heating effect is enhanced.

By removing the protective guard, the combustion device can be exposed from a wide area from the open surface, the combustion device can be easily inspected, not only is it excellent in serviceability, but also the exterior case is formed in a vertically long shape. Since the burner, the combustion cylinder and the heat exchanger are vertically connected to each other in a vertically long exterior case and a combustion device having a substantially tubular shape as a whole is housed, it can be installed compactly and generates a large amount of heat. Even equipment can be installed in a small area.

Since the operation unit is located at the high position of the vertically long exterior case, the customer can operate the device in a comfortable posture while standing, and the operability is enhanced.

Since the operating part is arranged on the outwardly inclined part, the operating part will face away from the combustion tube and heat exchanger,
It is possible to prevent the operating part from becoming hot and causing thermal deformation due to radiant heat from the combustion cylinder and the heat exchanger.

[Brief description of drawings]

FIG. 1 is a front view of a radiant heater showing an embodiment of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a side view of the same, and FIG. 4 is a front view when a protective guard is removed. FIG. 5 is a schematic sectional view for explaining the internal structure, FIG. 6 is an explanatory view of a connecting structure between a red heating element and a connecting case, FIG. 7 is a front view of an exhaust hood, FIG. 8 is a bottom view of the same, and FIG. The figure is an illustration of the supply and exhaust system of the radiant heater. (A) …… Combustion device, (1) …… Exterior case, (5A)…
… Outward slope, (8) …… Open surface, (9) …… Protective guard, (10) …… Burner, (11) …… Red heating element, (12)…
… Combustion cylinder, (14) …… Protective guard, (25) …… Operation panel (operation part).

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ryuichi Iida 2-18, Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (56) References 59-55302 (JP, U)

Claims (1)

(57) [Claims] 1. A combustion device having a burner, a translucent combustion cylinder containing a red heating element, and a heat exchanger, which are sequentially connected in a vertical direction to have a substantially tubular shape as a whole, and a vertically long housing containing the combustion device. -Shaped exterior case, and an open surface which is provided in the exterior case and has a longitudinally elongated arc-shaped cross section that exposes the front and side portions of the combustion cylinder and the front portion of the heat exchanger, and the open surface. A protective guard having an arcuate cross-section mounted so as to cover the outer case, an outwardly inclined portion provided on the front surface portion of the outer casing on the side of the open surface, and an upper portion of the outwardly inclined portion. A radiant heater characterized by comprising an operation section.