Heating system

Abstract

To provide a heating device that can improve the feeling of warmth. [Solution] The heating device 1 comprises a cylindrical metal outer cylinder 40, a red-hot body 50 housed inside the outer cylinder 40, and a reflector 60 positioned behind the outer cylinder 40, all housed within a radiant chamber 30 of the outer cylinder 2. The lower end opening of the outer cylinder 40 is connected to the upper end of the combustion section 10. A flat glass mounting section 42 is formed on the peripheral wall 41 of the outer cylinder 40, and a window section 43 is formed in the glass mounting section 42, penetrating the peripheral wall 41. The window section 43 is covered by a flat glass plate 44.

Description

[Technical Field]

[0001] The present invention relates to a heating apparatus. [Background Art]

[0002] In a radiation-type heating apparatus (a so-called oil stove) in which fuel (kerosene) is combusted in a combustion section to heat a red-hot body, and the red-hot body radiates infrared rays into a room, the red-hot body is housed in a glass outer cylinder disposed in a radiation chamber (see, for example, Patent Document 1). [Prior Art Documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Unexamined Patent Application Publication No. 2022-145103 [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] When warming the body with infrared rays, near-infrared rays warm the surface of the body, causing a burning hot sensation, so there are cases where warming from the core of the body with far-infrared rays is preferred. However, in the above-described conventional heating apparatus, the red-hot body is housed in the glass outer cylinder, and the red-hot body is visible from the outside, so near-infrared rays are mainly radiated into the room from the high-temperature red-hot body.

[0005] An object of the present invention is to solve the above-described problem and provide a heating apparatus capable of improving the heating feeling. [Means for Solving the Problem]

[0006] To solve the aforementioned problems, the present invention provides a heating device comprising a box-shaped exterior member, a combustion unit housed in the lower part of the exterior member, and an exhaust unit provided within the exterior member. The exterior member has a radiant chamber formed on its front surface, and the upper end of the combustion unit protrudes from the bottom surface of the radiant chamber. Inside the radiant chamber are a cylindrical metal outer cylinder, a red-hot body housed inside the outer cylinder, and a reflector positioned behind the outer cylinder. The upper end opening of the outer cylinder is connected to the exhaust unit, and the lower end opening of the outer cylinder is connected to the upper end of the combustion unit. A flat glass mounting portion is formed on the peripheral wall of the outer cylinder. A window portion is formed in the glass mounting portion, penetrating the peripheral wall, and the window portion is covered by a flat glass plate.

[0007] In the heating device of the present invention, when the red-hot element is heated by the combustion section, the metal outer cylinder is heated by that heat. The outer cylinder mainly emits far-infrared radiation. The far-infrared radiation emitted from the front of the outer cylinder is radiated forward, and the far-infrared radiation emitted from the rear of the outer cylinder is reflected by a reflector and radiated forward. In addition, in the heating device of the present invention, near-infrared radiation is radiated from the red-hot element through the window section. Thus, the heating device of the present invention increases the amount of far-infrared radiation emitted, effectively warming the core of the body, while the near-infrared radiation emitted through the window portion of the outer cylinder rapidly warms the surface of the body, thereby improving the feeling of warmth.

[0008] In the aforementioned heating device, if the window is positioned on the front side of the radiant chamber and near-infrared rays are radiated forward through the window, the surface of the body in front of the heating device will warm up more rapidly. Furthermore, by positioning the window on the front side of the appliance body, it becomes easier to check the heating state of the red-hot element and the combustion state of the combustion section from the front of the heating device through the window.

[0009] In the aforementioned heating device, if the width of the window is set to be between 1 / 4 and 1 / 3 of the outer diameter of the outer cylinder, the amount of near-infrared radiation radiated through the window increases, making it easier for the body to warm up rapidly. In addition, it becomes easier to check the heating state of the red-hot element and the combustion state of the combustion section through the window.

[0010] In the heating device described above, a retaining frame surrounding the window portion is attached to the outer surface of the glass mounting portion, and the edge of the glass plate is sandwiched between the outer surface of the glass mounting portion and the retaining frame, thereby securely fixing the glass plate to the outer cylinder.

[0011] In the peripheral wall of the outer cylinder of the heating device described above, it is preferable to form protrusions extending in the circumferential direction of the peripheral wall above and below the glass mounting portion. In this way, during the manufacturing process of the outer cylinder, when the cylindrical peripheral wall is pressed from the inside and outside between the upper and lower protrusions to form a flat glass mounting portion, deformation of the upper and lower opening edges of the peripheral wall can be suppressed as the glass mounting portion is formed on the peripheral wall. [Effects of the Invention]

[0012] The heating device of the present invention warms the body from the core with abundant far-infrared rays and rapidly warms the surface of the body with near-infrared rays, thereby improving the feeling of warmth. [Brief explanation of the drawing]

[0013] [Figure 1] This is a perspective view of a heating device according to an embodiment of the present invention, viewed from the front. [Figure 2] This is a cross-sectional view taken along line II-II in Figure 1, showing a heating device according to an embodiment of the present invention. [Figure 3] This is a perspective view showing the outer cylinder according to an embodiment of the present invention. [Figure 4] This is an exploded perspective view showing the outer cylinder according to an embodiment of the present invention. [Figure 5] This is a front view showing the outer cylinder according to an embodiment of the present invention. [Figure 6] It is a VI-VI cross-sectional view of Figure 5 showing an outer cylinder according to an embodiment of the present invention. Mode for Carrying Out the Invention

[0014] Embodiments of the present invention will be described in detail with appropriate reference to the drawings. As shown in Figure 1, the heating device 1 of the present embodiment is a radiation-type stove that radiates infrared rays into a room by using heat generated by burning fuel (e.g., kerosene).

[0015] The heating device 1 includes a metal box-shaped exterior member 2. A radiation chamber 30 is formed in a central portion of the exterior member 2. The upper, lower, left, right, and rear surfaces of the radiation chamber 30 are formed of metal plates. A front surface of the radiation chamber 30 opens to a front surface (front side) of the exterior member 2. Further, as shown in Figure 2, the heating device 1 includes a combustion unit 10 housed in a lower portion of the exterior member 2, and an exhaust unit 20 provided at an appropriate position in the exterior member 2.

[0016] The combustion unit 10 is a pot-type heat source, and includes a cylindrical body 11, a bottomed cylindrical pot 12 housed in the cylindrical body 11, an oil supply nozzle 13 that supplies fuel to a bottom surface of the pot 12, an ignition heater 14 disposed at a lower portion in the pot 12, and an air supply unit 15 that supplies air to a lower portion in the cylindrical body 11. As shown in Figure 1, an upper end of the combustion unit 10 protrudes from a central portion of a bottom surface of the radiation chamber 30.

[0017] In the combustion unit 10, as shown in Figure 2, fuel supplied from the oil supply nozzle 13 to the bottom surface of the pot 12 is vaporized by heat of the ignition heater 14. Further, an air-fuel mixture of air supplied into the cylindrical body 11 by the air supply unit 15 and vaporized fuel is ignited by heat of the ignition heater 14, thereby causing combustion at an upper end portion of the pot 12.

[0018] As shown in Figure 1, a cylindrical outer cylinder 40, a red heat body 50 housed in the outer cylinder 40, and a reflection plate 60 disposed behind the outer cylinder 40 are housed in the radiation chamber 30. The reflection plate 60 is a metal plate forming the left and right side surfaces and the rear surface of the radiation chamber 30.

[0019] The red-hot body 50 is a cylindrical member made of metal. The peripheral wall of the red-hot body 50 is formed in a mesh shape. As shown in Figure 2, the red-hot body 50 is suspended from the top surface of the radiation chamber 30 and disposed directly above the upper end of the combustion unit 10. The red-hot body 50 is heated by the combustion unit 10 and becomes red-hot.

[0020] The exhaust unit 20 includes a heat dissipation flow path 21 and an exhaust pipe 22 provided in the exterior member 2. The heat dissipation flow path 21 is formed inside the upper portion of the exterior member 2. On the top surface of the radiation chamber 30, at a position above the red-hot body 50, an intake port 21a of the heat dissipation flow path 21 protrudes. The intake port 21a is a cylindrical ventilation opening. One end of the exhaust pipe 22 communicates with the heat dissipation flow path 21. The exhaust pipe 22 extends to the outside of the exterior member 2 through an opening formed in the rear wall of the exterior member 2.

[0021] The outer cylinder 40 is a cylindrical member made of metal as shown in Figure 3. In the outer cylinder 40 of the present embodiment, it is formed of a cylindrical body of heat-resistant stainless steel material, and the outer surface of the cylindrical body is coated with heat-resistant black paint.

[0022] The upper end of the outer cylinder 40 is connected to the lower end of the intake port 21a as shown in Figure 2. Thereby, the upper end opening of the outer cylinder 40 communicates with the heat dissipation flow path 21 of the exhaust unit 20. The lower end of the outer cylinder 40 is connected to the upper end of the cylinder body 11. Thereby, the lower end opening of the outer cylinder 40 communicates with the internal space of the cylinder body 11 of the combustion unit 10.

[0023] An air passage is formed between the combustion unit 10 and the exhaust unit 20 by the internal space of the outer cylinder 40. The internal space of the outer cylinder 40 is airtight with respect to the internal space of the radiation chamber 30. The red-hot body 50 is accommodated in the outer cylinder 40. An annular space is formed between the inner peripheral surface of the outer cylinder 40 and the outer peripheral surface of the red-hot body 50. The combustion gas generated by the combustion in the combustion section 10 is exhausted to the outside through the outer cylinder 40 and the exhaust section 20.

[0024] As shown in Figure 6, the peripheral wall 41 of the outer cylinder 40 in this embodiment is formed by bending a strip of metal plate into a cylindrical shape. As shown in Figure 3, annular flange portions 48, 48 are formed on the upper and lower opening edges of the peripheral wall 41, respectively, which protrude inward. By forming the flange portions 48 on the opening edges of the cylindrical peripheral wall 41 in this way, the rigidity of the outer cylinder 40 is improved and thermal deformation of the outer cylinder 40 is prevented.

[0025] As shown in Figure 4, a glass mounting portion 42 is formed at the front of the peripheral wall 41 of the outer cylinder 40. The glass mounting portion 42 has a flat, rectangular frame-shaped outer surface 42a (front surface). As shown in Figure 5, the glass mounting portion 42 is located in the middle of the peripheral wall 41 in the vertical direction. As shown in Figure 6, the glass mounting portion 42 is formed in the manufacturing process of the outer cylinder 40 by pressing the front part of the cylindrical peripheral wall 41 from both the inside and outside.

[0026] As shown in Figure 5, a rectangular window portion 43 is formed in the center of the outer surface 42a of the glass mounting portion 42, penetrating the peripheral wall 41. In addition, multiple screw holes 42b are formed around the window portion 43 on the outer surface 42a of the glass mounting portion 42.

[0027] In the heating device 1 of this embodiment, as shown in Figure 1, the orientation of the outer cylinder 40 is set such that the window portion 43 of the outer cylinder 40 is positioned on the front side of the radiant chamber 30. Furthermore, the window portion 43 and the red-hot body 50 are facing each other with a gap in the front-to-back direction. As a result, the combustion state of the red-hot body 50 and the combustion section 10 can be visually observed from the front side of the exterior member 2 through the window portion 43.

[0028] In this embodiment, as shown in Figure 5, the window portion 43 is formed in a rectangular shape, and the width of the window portion 43 is between 1 / 4 and 1 / 3 of the outer diameter of the peripheral wall 41 of the outer cylinder 40. Furthermore, the width of the window portion 43 is set to be between 1 / 2 and 1 / 1 of the outer diameter of the red-hot body 50. In this embodiment, the height of the window portion 43 is set to be between 1 / 4 and 1 / 2 of the height of the peripheral wall 41 of the outer cylinder 40.

[0029] As shown in Figure 4, a flat glass plate 44 is stacked on the outer surface 42a of the glass mounting section 42, and a retaining frame 45 is attached to it (see Figure 3). The glass plate 44 is a transparent, heat-resistant glass plate. The entire circumference of the edge of the glass plate 44 is superimposed on the outer surface 42a of the glass mounting portion 42. As a result, the window portion 43 is closed by the glass plate 44, as shown in Figure 3.

[0030] As shown in Figure 4, a rectangular frame-shaped sealing member 46a is interposed between the outer surface 42a of the glass mounting portion 42 and the edge of the glass plate 44. The sealing member 46a has heat resistance and is a component that ensures airtightness between the outer surface 42a of the glass mounting portion 42 and the glass plate 44.

[0031] The retaining frame 45 is a rectangular frame that is superimposed on the edge of the glass plate 44 and the outer surface 42a of the glass mounting portion 42. The retaining frame 45 is placed over the outer surface 42a of the glass mounting portion 42, surrounding the window portion 43. The edge of the glass plate 44 is sandwiched between the outer surface 42a of the glass mounting portion 42 and the retaining frame 45 (see Figure 3).

[0032] A rectangular, frame-shaped sealing member 46b is interposed between the edge of the glass plate 44 and the retaining frame 45. The sealing member 46b is heat-resistant and serves to ensure airtightness between the glass plate 44 and the retaining frame 45.

[0033] The retaining frame 45 has a plurality of mounting holes that communicate with each screw hole 42b of the glass mounting portion 42. Each mounting hole and each screw hole 42b is formed outside the sealing member 46b. With the retaining frame 45 superimposed on the outer surface 42a of the glass mounting section 42, the retaining frame 45 is fixed to the outer surface 42a of the glass mounting section 42 by screwing the threaded portions of bolts 45a, which are inserted from the outside into each mounting hole of the retaining frame 45, into each threaded hole 42b of the glass mounting section 42. In this way, as shown in Figure 3, the glass plate 44 is attached to the outer surface 42a of the glass mounting portion 42 by the retaining frame 45.

[0034] As shown in Figure 5, on the peripheral wall 41 of the outer cylinder 40, protrusions 47, 47 are formed above and below the glass mounting portion 42, respectively, extending in the circumferential direction of the peripheral wall 41. The protrusions 47 are portions that project (raised) from the outer surface of the peripheral wall 41. The protrusions 47 are formed in a straight line parallel to the upper and lower edges of the peripheral wall 41. The lateral length L2 of the protrusions 47 is larger than the width L1 of the glass mounting portion 42, and both ends of the protrusions 47 extend laterally beyond the side edges of the glass mounting portion 42.

[0035] When heating a room with the heating device 1 of this embodiment, the combustion section 10 is used to heat the red-hot element 50, causing the red-hot element 50 to glow red, and simultaneously heating the outer cylinder 40. At this time, the red-hot element 50 mainly emits near-infrared radiation, and the metal outer cylinder 40 mainly emits far-infrared radiation.

[0036] Far-infrared rays radiated from the front of the outer cylinder 40 are radiated forward, and far-infrared rays radiated from the rear of the outer cylinder 40 are reflected by the reflector 60 and radiated forward. In addition, near-infrared rays are radiated forward from the red-hot body 50 through the window portion 43 of the outer cylinder 40. In this way, far-infrared and near-infrared rays are radiated from the radiant chamber 30 of the heating device 1 into the room, warming the room.

[0037] In the heating device 1 of this embodiment, the amount of far-infrared radiation emitted is increased, effectively warming the core of the body, while the near-infrared radiation emitted through the window portion 43 of the outer cylinder 40 rapidly warms the surface of the body, thereby improving the feeling of warmth.

[0038] In the heating device 1 of this embodiment, the width of the window portion 43 of the outer cylinder 40 is set to be between 1 / 4 and 1 / 3 of the outer diameter of the outer cylinder, and the window portion 43 is located on the front side of the radiant chamber 30. In this configuration, the amount of near-infrared radiation radiated forward through the window 43 increases, making it easier for the body to warm up rapidly. Furthermore, the heating state of the red-hot body and the combustion state of the combustion section 10 can be easily observed through the window 43.

[0039] In the manufacturing process of the outer cylinder 40 of this embodiment, upper and lower protrusions 47, 47 are formed on the peripheral wall 41 before forming the glass mounting portion 42 on the peripheral wall 41. Then, as shown in Figure 4, the peripheral wall 41 is formed into a cylindrical shape. Alternatively, the upper and lower protrusions 47, 47 may be formed on the peripheral wall 41 after it has been formed into a cylindrical shape. Subsequently, the space between the upper and lower protrusions 47, 47 of the peripheral wall is pressed from both the inside and outside to form a flat glass mounting portion 42 (see Figure 6). In this way, when the glass mounting portion 42 is press-formed onto the peripheral wall 41, deformation of the upper and lower opening edges of the peripheral wall 41 due to the formation of the glass mounting portion 42 onto the peripheral wall 41 can be suppressed.

[0040] Although embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above, and can be modified as appropriate without departing from its spirit. In the heating device 1 of this embodiment, as shown in Figure 1, the window portion 43 of the outer cylinder 40 is positioned on the front side of the radiant chamber 30, but the orientation of the window portion 43 of the outer cylinder 40 is not limited. As in this embodiment, when the window portion 43 of the outer cylinder 40 is positioned on the front side of the radiant chamber 30, the heating effect can be enhanced compared to when the window portion 43 is oriented to the left, right, or rear sides of the radiant chamber 30. Experiments have confirmed that when the heating device 1 is operated with the front side of the heating device 1 facing the wall, the temperature of the wall when the window section 43 is positioned on the front side of the radiant chamber 30 is approximately 1 degree higher than when the window section 43 is positioned on the left, right, and rear sides of the radiant chamber 30.

[0041] In the heating device 1 of this embodiment, one glass mounting portion 42 is formed on the outer cylinder 40, and a window portion 43 is formed on the glass mounting portion 42, but multiple glass mounting portions may be formed on the outer cylinder 40.

[0042] In the heating device 1 of this embodiment, the window portion 43 is formed in a rectangular shape, but the shape and size of the window portion are not limited, and the shape and size of the window portion can be set as appropriate so that the red-hot element and the upper end of the combustion section can be easily seen through the window portion. Furthermore, the mounting structure of the glass plate 44 to the glass mounting portion 42 of the outer cylinder 40 is not limited. Furthermore, the shape of the protrusions formed on the peripheral wall 41 of the outer cylinder 40 is not limited; for example, the length of the protrusions may be made smaller than the width of the glass mounting portion 42. Moreover, it is not necessary to form protrusions on the peripheral wall 41. [Explanation of symbols]

[0043] 1. Heating system 2. Exterior components 10 Combustion section 11 Cylinder 12 pots 13 Fuel nozzle 14 Ignition heater 15 Air supply unit 20 Exhaust section 21 Heat radiation flow path 21a Intake 22 Exhaust pipe 30 Radiation chamber 40 Outer cylinder 41 Peripheral wall 42 Glass mounting section 42a Exterior 42b Screw hole 43 Window section 44 Glass plate 45 holding slots 45a bolt 46a Sealing member 46b Sealing member 47 Convex part 48 Flange section 50 Red-hot objects 60 Reflector

Claims

1. Box-shaped exterior component, A combustion section housed in the lower part of the exterior member, The exterior member includes an exhaust section, The exterior member has a radiation chamber formed on its front surface. The upper end of the combustion section protrudes from the bottom surface of the radiation chamber. Inside the aforementioned radiation chamber, A cylindrical outer casing made of metal, The red-hot body housed within the outer cylinder, A reflector is located at the rear of the outer cylinder, and is housed within it. The upper end opening of the outer cylinder is connected to the exhaust section, The lower end opening of the outer cylinder is connected to the upper end of the combustion section. A flat glass mounting portion is formed on the peripheral wall of the outer cylinder. The glass mounting portion has a window portion that penetrates the peripheral wall, A heating device characterized in that the window portion is covered by a flat glass plate.

2. A heating device according to claim 1, The heating device is characterized in that the window portion is located on the front side of the radiant chamber.

3. A heating device according to claim 1, A heating device characterized in that the width of the window portion is 1 / 4 to 1 / 3 of the outer diameter of the outer cylinder.

4. A heating device according to claim 1, A retaining frame surrounding the window portion is attached to the outer surface of the glass mounting portion. A heating device characterized in that the edge of the glass plate is sandwiched between the outer surface of the glass mounting portion and the retaining frame.

5. A heating device according to claim 1, A heating device characterized in that, in the peripheral wall, protrusions extending in the circumferential direction of the peripheral wall are formed above and below the glass mounting portion.

Images