JP2022054643A - Heating device - Google Patents

Abstract

To provide a heating device capable of heating air in short time with high accuracy without using large-scale devices such as a boiler.SOLUTION: A heater has a cantal member formed in a coil shape wound around a columnar insulator, and has a heater support member in which a plurality of heaters are arranged in parallel at equal intervals. The plurality of heater support members is arranged so that the plurality of heaters intersect an airflow, in a housing until air is supplied from an air supply port and the supplied air is guided to an exhaust port.SELECTED DRAWING: Figure 2

Description

The present invention relates to a heating device that generates hot air at 100 ° C. to 1000 ° C. with a simple structure, and more particularly to a heating device that can rapidly generate hot air while suppressing power consumption.

When hot water of around 90 ° C is required for production equipment such as factories, steam is usually generated at around 130 ° C in a boiler, and the steam is reduced to hot water in a temperature control tank that adjusts the temperature. Generated hot water at around 90 ° C. When using a boiler, the annual fuel cost is 10 million yen even for a small recirculation boiler.

Therefore, attempts have been made to generate hot water using near infrared rays. For example, Patent Document 1 discloses a fluid heating device for heating a fluid such as air flowing in a predetermined direction by taking advantage of the characteristics that a near-infrared lamp is advantageous for metal heating. In Patent Document 1, since air can be heated as a fluid, the heated air can be used to heat the liquid.

Registered Utility Model No. 3174458

The fluid heating device disclosed in Patent Document 1 only slowly heats the flowing air, and cannot heat it to a high temperature at once. Moreover, since the near infrared rays are directly exposed to the fluid, the rate of heat dissipation is high. In addition, the structure of the housing should be as simple and inexpensive as possible.

The present invention has been made in view of the above problems, and provides a heating device capable of heating air with high efficiency and in a short time without using a large-scale device such as a boiler. The purpose.

In order to achieve the above object, the heating device according to the present invention is a heating device that heats air using a heater made of a cantal member. The heater is a cantal member formed in a coil shape and is made of a columnar insulator. It has a heater support member that is wound around and has a plurality of the heaters arranged in parallel at equal intervals, and air is supplied from the air supply port until the supplied air is guided to the exhaust port. A plurality of the heater support members are arranged in the body so that the plurality of heaters intersect the flow of air.

In the above invention, a heater support member in which heaters made of cantal members having a relatively large calorific value are arranged in parallel is arranged so that a plurality of heaters intersect the air flow. This makes it possible to heat the supplied air (outside air) with high efficiency without using large equipment such as a boiler, and it is possible to exhaust hot air of up to around 1000 ° C depending on the number of cantal heaters. Will be.

Further, in the heating device according to the present invention, the heater support member has a square shape orthogonal to the flow direction of the supplied air, and among the plurality of heaters arranged in parallel, the heater support member is supported. The distance from the end of the member to the heater arranged on the outermost side is different in the upper and lower directions, and the difference in the distance from the end of the heater support member to the heater arranged on the outermost side is adjacent to each other. It is preferable that the distance between the heaters is shorter than that of the heaters, and that the adjacent heater support members are sequentially rotated by 180 degrees and arranged.

In the above invention, the distance between the heaters attached to the adjacent heater support members is narrowed when viewed from the air supply port side, so that the air (outside air) supplied with higher efficiency can be heated. Depending on the number of cantal heaters, hot air of up to about 1000 ° C. can be exhausted.

Further, in the heating device according to the present invention, the heater support member has a square shape orthogonal to the flow direction of the supplied air, and a plurality of the heaters arranged in parallel intersect each other to form a grid. It is preferable that the adjacent heater support members are sequentially rotated by 90 degrees and arranged so as to form a shape.

In the above invention, since the heaters attached to the adjacent heater support members are arranged in a grid pattern when viewed from the air supply port side, it is possible to heat the supplied air (outside air) with higher efficiency. It is possible to exhaust hot air at a maximum of about 1000 ° C. depending on the number of cantal heaters.

According to the above invention, since a plurality of heaters in which a cantal member having a relatively large calorific value is wound around a columnar insulator are provided in parallel, the temperature rises to a high temperature while the air supplied from the air supply port passes through. Be heated. This makes it possible to heat the supplied air (outside air) with high efficiency without using large equipment such as a boiler, and it is possible to exhaust hot air of up to around 1000 ° C depending on the number of cantal heaters. Will be.

It is a schematic diagram which shows the structure of the heating apparatus which concerns on embodiment of this invention. It is a schematic diagram which shows the structure of the cantal heater of the heating apparatus which concerns on embodiment of this invention. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 2 of the cantal heater of the heating device according to the embodiment of the present invention. It is a schematic diagram which shows the other structure of the cantal heater of the heating apparatus which concerns on embodiment of this invention. It is a schematic diagram which shows the state which attached the cantal heater of the heating apparatus which concerns on embodiment of this invention to a heater support member. It is a schematic diagram which shows the detail of the state which the cantal heater of the heating apparatus which concerns on embodiment of this invention is attached to a heater support member. It is another schematic diagram which shows the detail of the state which the cantal heater of the heating apparatus which concerns on embodiment of this invention is attached to a heater support member. It is a schematic diagram which shows the structure of the heater support member of the heating apparatus which concerns on embodiment of this invention. It is a schematic diagram explaining the arrangement method of the heater support member of the heating apparatus which concerns on embodiment of this invention. It is another schematic diagram explaining the arrangement method of the heater support member of the heating apparatus which concerns on embodiment of this invention.

Hereinafter, the heating device according to the embodiment of the present invention will be described in detail with reference to the drawings. The following embodiments do not limit the invention described in the claims, and it is said that all combinations of characteristic matters described in the embodiments are essential solutions. Needless to say, it is not limited.

In addition, the present invention can be implemented in many different embodiments and should not be construed as being limited to the description of the embodiments. The same elements are designated by the same reference numerals throughout the embodiments.

According to the embodiment of the present invention, since a plurality of cantal members having a relatively large calorific value are provided in the heater wound around the columnar insulator, the air supplied from the air supply port passes through the cantal member. In the meantime, it is heated to a high temperature. This makes it possible to heat the supplied air (outside air) with high efficiency without using large equipment such as a boiler, and it is possible to exhaust hot air of up to around 1000 ° C depending on the number of cantal heaters. Will be.

FIG. 1 is a schematic diagram showing a configuration of a heating device according to an embodiment of the present invention. FIG. 1A is a front schematic view showing the configuration of the heating device 1 according to the present embodiment, and FIG. 1B is a plan schematic view showing the configuration of the heating device 1 according to the present embodiment. Yes, FIG. 1C is a schematic side view showing the configuration of the heating device 1 according to the present embodiment.

As shown in FIG. 1, the heating device 1 according to the present embodiment is provided with a heating tank 20 in a housing 10, and an air supply port 40 and an exhaust port 50 are provided in front of and behind the heating tank 20. The air supply port 40 is provided with a supply fan 25 that supplies outside air to the inside of the heating tank 20, and the outside air supplied by the supply fan 25 passes through the heating tank 20 and flows to the exhaust port 50.

In the heating tank 20, a plurality of cantal heaters 30 using a cantal member 31 manufactured by KANTHAL (registered trademark) are provided. FIG. 2 is a schematic view showing the configuration of the cantal heater 30 of the heating device 1 according to the embodiment of the present invention.

In FIG. 2, the cantal member 31 is an iron Fe-chromium Cr-aluminum Al-cobalt Co alloy, containing Fe as a main component, and the other contents are Cr 20%, Al 15%, and Co 2%. As the heating wire, nichrome wire is used for applications up to around 1000 ° C., but the cantal member 31 has excellent oxidation resistance and can be used up to around 1250 ° C.

The cantal heater 30 has a cantal member 31 formed in a coil shape and is wound around the outer circumference of the heat-resistant insulator 32. As the insulator 32, a quartz column formed in a columnar shape and having high heat resistance is preferable. Of course, as long as it does not have conductivity, it may be a ceramic material having heat resistance, or it may be heat-resistant glass.

FIG. 3 is a cross-sectional view taken along the line AA of FIG. 2 of the cantal heater 30 of the heating device 1 according to the embodiment of the present invention. As shown in FIG. 3, the cantal member 31 is wound around the outer surface of the heat-resistant insulator 32 formed in a columnar shape.

As shown in FIG. 2, the cantal heater 30 is preferably in pairs. In this case, by connecting the adjacent cantal heaters 30 with the lead wires 70, the lead wires 60 connected to the power supply can be integrated in one direction, and the connection with the power supply becomes easy.

The cantal heater 30 is not limited to a set of two, and each cantal heater 30 may be independent. FIG. 4 is a schematic view showing another configuration of the cantal heater 30 of the heating device 1 according to the embodiment of the present invention.

As shown in FIG. 4, each cantal heater 30 is provided with a lead wire 60 connected to a power source, and each can be connected to a power source.

Since the cantal heater 30 itself becomes hot, it is preferable that the lead wire 60 connected to the power supply and the lead wire 70 connected between the adjacent cantal heaters 30 are cured with an earth leakage prevention glass or the like that can withstand the high temperature. By doing so, it is possible to avoid thermal damage to the power supply itself caused by heat conduction.

In this embodiment, the cantal heaters 30 are mounted side by side in parallel with the heater support member 45. FIG. 5 is a schematic view showing a state in which the cantal heater 30 of the heating device 1 according to the embodiment of the present invention is attached to the heater support member 45. FIG. 5A is a front schematic view showing a state in which the cantal heater 30 of the heating device 1 according to the present embodiment is attached to the heater support member 45, and FIG. 5B is a frontal schematic view showing the state in which the cantal heater 30 according to the present embodiment is attached. FIG. 5 (c) is a schematic plan view showing a state in which the cantal heater 30 of the heating device 1 is attached to the heater support member 45, and FIG. 5 (c) shows the cantal heater 30 of the heating device 1 according to the present embodiment to the heater support member 45. It is a side schematic diagram which shows the attached state.

As shown in FIG. 5A, the heater support member 45 has a square shape, and the cantal heater 30 is attached to the heater support member 45 in parallel at equal intervals. By arranging the heater support member 45 so as to be orthogonal to the flow direction of the supplied air as shown in FIG. 1, the air is heated when passing between the adjacent cantal heaters 30. In this embodiment, as shown in FIG. 1, four heater support members 45 are provided. Of course, the number is not limited to this, and the number may be set to a high heating efficiency.

FIG. 6 is a schematic view showing details of a state in which the cantal heater 30 of the heating device 1 according to the embodiment of the present invention is attached to the heater support member 45. FIG. 6 shows a state in which the cantal heater 30 having the electrodes shown in FIG. 4 extending on both sides is attached to the heater support member 45 at equal intervals from top to bottom. The lead wires 60 are aggregated on both sides and guided to a power source.

FIG. 7 is another schematic view showing details of a state in which the cantal heater 30 of the heating device 1 according to the embodiment of the present invention is attached to the heater support member 45. FIG. 7 shows a state in which the cantal heaters 30 in pairs shown in FIG. 2 are attached to the heater support member 45 at equal intervals from top to bottom. The adjacent cantal heaters 30 are connected by lead wires 70 cured to increase heat resistance, and the lead wires 60 on one side are aggregated and guided to a power source.

Here, it is preferable that the mounting height of the lowermost cantal heater 30 among the plurality of cantal heaters 30 arranged in parallel is different from the mounting height of the lowermost cantal heater 30 when rotated 180 degrees. .. Here, the mounting height means the distance from the end portion of the heater support member 45 to the cantal heater 30 mounted on the outermost side including the mounting portion 455 of the heater support member 455 to the housing 10. ..

That is, in FIG. 5, the distance h1 and the distance h2 from the end of the heater support member 45 to the cantal heater 30 arranged on the outermost side are different (h1 <h2). Then, by making the difference in distance (h2-h1) between the two smaller than the distance d between the adjacent cantal heaters 30, the air supply port 40 is arranged while the adjacent heater support members 45 are sequentially rotated by 180 degrees. Arrange the cantal heater 30 attached to the heater support member 45 next to the cantal heater 30 so as to be visible between the cantal heaters 30 attached to the heater support member 45 at the closest distance when viewed from the side. Can be done.

FIG. 8 is a schematic view showing the configuration of the heater support member 45 of the heating device 1 according to the embodiment of the present invention. FIG. 8A shows the configuration of the heater support member 45a arranged at odd-numbered positions when viewed from the air supply port 40 side, and FIG. 8B shows the configuration of the heater support member 45a arranged at odd-numbered positions when viewed from the air supply port 40 side. The configurations of the heater support members 45a are shown.

By rotating the heater support member 45a of FIG. 8A by 180 degrees and arranging the next heater support member 45b, the heights of the cantal heaters 30 are different, and a plurality of cantal heaters 30 arranged in parallel are arranged. The cantal heater 30 attached to the next heater support member 45 is located between the two. As a result, the distance between the air passages becomes narrower, and it becomes possible to heat the supplied outside air more effectively.

FIG. 9 is a schematic diagram illustrating a method of arranging the heater support member 45 of the heating device 1 according to the embodiment of the present invention. FIG. 9A is a schematic view showing an arrangement of the heater support members 45 of the heating device 1 according to the present embodiment, and FIG. 9B is a cantal heater 30 of the heating device 1 according to the present embodiment. It is a schematic diagram seen from the air supply port side which shows the arrangement state of. The arrow direction in FIG. 9A has the same meaning as the arrow direction in FIGS. 5 and 8, that is, the direction from the bottom to the top of the heater support member 45.

As shown in FIG. 9A, the heater support member 45a of FIG. 8A is rotated 180 degrees to arrange the next heater support member 45b, and the heater support members 45a and 45b are sequentially rotated 180 degrees to arrange the heater support members 45a and 45b. do. As a result, the distance between the plurality of cantal heaters 30 arranged in parallel becomes about half the distance between the cantal heaters 30 attached to the heater support member 45.

FIG. 9B shows the position of the cantal heater 30 as seen from the air supply port 40 side when the heater support member 45a of FIG. 8A is rotated 180 degrees and the next heater support member 45b is arranged. It is a schematic diagram. FIG. 9 shows a case where four cantal heaters 30 are attached to the heater support member 45 for simplification.

As shown in FIG. 9B, when the heater support member 45 is arranged without changing the direction, only four cantal heaters 30 can be seen from the air supply port 40 side. However, when the heater support member 45 of FIG. 8A is sequentially rotated by 180 degrees and arranged, it seems that there are eight cantal heaters 30 when viewed from the air supply port 40 side. Therefore, although the pressure loss increases, it is possible to heat the outside air more effectively by adjusting the air volume of the supply fan 25.

When the heater support member 45 has a square shape, the heater support member 45 is not limited to being sequentially rotated by 180 degrees and arranged, and may be sequentially rotated by 90 degrees and arranged. In this case, the cantal heaters 30 attached to the next heater support member 45 are located between the plurality of cantal heaters 30 arranged in parallel, and the cantal heaters 30 are arranged orthogonally to each other in a grid pattern. .. As a result, the distance between the air passages becomes narrower, and it becomes possible to heat the supplied outside air more effectively.

FIG. 10 is another schematic view illustrating a method of arranging the heater support member 45 of the heating device 1 according to the embodiment of the present invention. FIG. 10 (a) is a schematic view showing an arrangement of the heater support members 45 of the heating device 1 according to the present embodiment, and FIG. 10 (b) is a cantal heater 30 of the heating device 1 according to the present embodiment. It is a schematic diagram seen from the air supply port side which shows the arrangement state of. The arrow direction in FIG. 10A has the same meaning as the arrow direction in FIGS. 5 and 8, that is, the direction from the bottom to the top of the heater support member 45.

As shown in FIG. 10A, the heater support member 45 of FIG. 8A is rotated 90 degrees to arrange the next heater support member 45, and the heater support member 45 is sequentially rotated 90 degrees to arrange the heater support member 45. As a result, the distance between the plurality of cantal heaters 30 arranged in parallel becomes about half the distance between the cantal heaters 30 attached to the heater support member 45, and the cantal heaters 30 are arranged orthogonally to each other in a grid pattern. Orthogonal.

10 (b) shows the position of the cantal heater 30 as seen from the air supply port 40 side when the heater support member 45a of FIG. 8 (a) is sequentially rotated by 90 degrees to arrange the four heater support members 45. Shows. FIG. 10 shows a case where four cantal heaters 30 are attached to the heater support member 45 for simplification.

As shown in FIG. 10B, when the heater support member 45 is arranged without changing the direction, only four cantal heaters 30 can be seen from the air supply port 40 side. However, when the heater support members 45 shown in FIG. 8A are sequentially rotated by 90 degrees and arranged, the cantal heaters 30 appearing to be present when viewed from the air supply port 40 side are latticed orthogonally to each other. Looks like. Therefore, although the pressure loss increases, it is possible to heat the outside air more effectively by adjusting the air volume of the supply fan 25.

As described above, according to the present embodiment, the temperature reaches a high temperature while the air (outside air) supplied from the air supply port 40 passes through the ventilation pipe 32 containing the cantal member 31 having a relatively large calorific value. Be heated. As a result, the air (outside air) supplied with high efficiency can be heated without using large equipment such as a boiler, and hot air of up to about 1000 ° C. can be exhausted depending on the number of cantal heaters 30. It will be possible.

It should be noted that the present invention is not limited to the above embodiment, and it goes without saying that various modifications, substitutions, etc. are possible within the scope of the gist of the present invention. The number of cantal heaters 30 may be increased as long as the heat resistance allows, the cantal heaters 30 may be arranged in a row, or the cantal heaters 30 may be arranged in a plurality of rows.

1 Heating device 10 Housing 20 Heating tank 25 Supply fan 30 Cantal heater 31 Cantal member 32 Vent pipe 40 Air supply port 45, 45a, 45b Heater support member 50 Exhaust port

Claims (3)

In a heating device that heats air using a heater made of Cantal member
In the heater, a cantal member formed in a coil shape is wound around a columnar insulator.
It has a heater support member in which a plurality of the heaters are arranged in parallel at equal intervals.
A plurality of the heater support members are arranged so that the plurality of the heaters intersect the air flow in the housing until the air is supplied from the air supply port and the supplied air is guided to the exhaust port. A heating device characterized by. The heater support member has a square shape orthogonal to the flow direction of the supplied air.
Of the plurality of heaters arranged in parallel, the distance from the end of the heater support member to the heater arranged on the outermost side is different between the upper and lower sides.
The difference in distance from the end of the heater support member to the outermost heater is shorter than the distance between adjacent heaters.
The heating device according to claim 1, wherein the adjacent heater support members are sequentially arranged while being rotated by 180 degrees. The heater support member has a square shape orthogonal to the flow direction of the supplied air.
The heating device according to claim 1, wherein the adjacent heater support members are sequentially rotated by 90 degrees so that a plurality of the heaters arranged in parallel intersect each other to form a grid pattern.

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