KR101095461B1 - Far infrared ray irradiating tube type heater having winding shape duct - Google Patents

Abstract

The present invention relates to a far-infrared heater. According to the present invention, in the far-infrared heater having a burner and a flue chamber coated with a far-infrared radioactive material on the outer surface, the far-infrared heater is wound from one end of the combustion chamber. Provided is a far infrared heater having a winding type flue extending upwards, the far infrared heater having a wound type flue according to the present invention is excellent by maximizing the far infrared radiation area per unit volume to improve the far infrared radiation and heat emission efficiency Compact type with heating efficiency, despite having a compact type, by ensuring sufficient flue length, the primary combustion in the combustion chamber and the complete combustion by secondary combustion in the furnace heated to high temperature achieve soot or odor The generation can be effectively suppressed and the radial direction is 180 °. The wide-angle and omnidirectional ranges allow for ease of use in confined dwellings, living spaces, or office spaces such as apartments, single-family homes, small and medium-sized offices, restaurants, and the like. It can be controlled effectively.

Far Infrared Ray, Heater, Winding, Wrinkles, Pivot Movement, Reflector

Description

Far infrared heater with winding type flue {FAR INFRARED RAY IRRADIATING TUBE TYPE HEATER HAVING WINDING SHAPE DUCT}

The present invention relates to a far-infrared heater, and more particularly, to a winding type of a wide-angled to omnidirectional compact type having a radiation direction exceeding 180 ° while maximizing the far-infrared radiation area per unit volume. It relates to a far-infrared heater having a flue.

Infrared radiation is a type of electromagnetic wave that is located between the visible wavelength band and the microwave wavelength band and has a strong thermal action of a wavelength longer than the red region of the visible light. Iii) and strong resonance and light rays emitted mainly in the form of radiant heat from a heated object. Light rays in the wavelength range of 0.76 to 1.5 μm (760 to 1500 nm) are near infrared, 1.5 to 5.6 μm (1,500 to 5,600). The light rays in the (nm) region are classified as mid-infrared rays, and the light rays in the 5.6 to 100 mu m (5,600 to 100,000 nm) region are classified as far infrared rays.

In particular, far-infrared rays are known to activate cellular tissues by vibrating the cells at least 2,000 times per minute when irradiated to the human body by the heat rays effect of strong penetration force. Because of its characteristics, it can be uniformly heated and dried, which shortens heating time and saves energy.

Far-infrared heaters, unlike conventional convection heaters or conventional heaters with air heating, are far-infrared and irradiate directly to the human body to generate heat, so they are not affected by wind and have excellent directivity of infrared rays. Due to its large heating effect and especially low downward heating effect, it is suitable not only for indoor use but also for outdoor use.It is widely used in places with medium and large activity spaces due to the absence of dust, noise and odor due to the development of combustion technology. .

A conventional typical far infrared heater 1 'is shown in FIG. 7, and the conventional far infrared heater 1' has a cabinet shape. The tubular far-infrared heater 1 'shown has a control and display panel 3', a burner 4 ', a fuel tank 6', a combustion chamber 7 ', and a ceramic layer emitting far-infrared radiation upon heating on its outer surface. It consists of coated linear and arched flue (8 ', 8a') and exhaust filter section (9 ').

Above the casing 2 'is provided a control and display panel 3' operated by remote control operation, and a burner 4 'and a control unit (not shown) are provided in the casing 2'. Below the burner 4 ', the fuel tank 6' is usually housed.

When combustion is started from the burner 4 ', the flame 5' generated from the burner 4 'is extended to the inside of the combustion chamber 7' and combustion of fuel such as kerosene is continuously performed, and the combustion chamber 7 The flame inside ') heats the above-mentioned linear and arch year (8', 8a ') with zigzag through the linear and arch year (8', 8a ') together with the combustion gases, so that the outer surface is covered with A large amount of far infrared rays are emitted by the far-infrared radioactive ceramic coating layer. The linear and arched flue 8 ', 8a', which is formed zigzag and has an extended length, is heated to a high temperature so that unburned unburnt in the combustion chamber is instantaneously secondary burned in the process. This contributes to the increase of calorific value and contributes to the purification of exhaust gas.

In some cases, the traces of fines contained in the combustion gas are tertiarily combusted and exhausted by passing through a catalyst filter (not shown) mounted in the above-described linear and arched flue 8 'and 8a'. Instant deodorization and purification can also be achieved.

An exhaust filter part 9 'is mounted at the end of the arch flue 8a' at the end, and an adsorption member (not shown) inside thereof adsorbs and collects a small amount of fine dust and harmful gas in the exhaust gas, Deodorization and purification are performed while evaporating gradually by the heat continuously obtained from the exhaust gas in the exhausted combustion state, and the noise is also partially performed, thereby enabling more comfortable heating.

On the other hand, since the exhaust hole (not shown) for discharging high-temperature exhaust gas is formed at the outer end portion of the exhaust filter part 9 ', a guard net 9a' is installed to prevent hand burns due to carelessness. Although not shown, a safety net (not shown) is mounted on the front of the far infrared heater 1 '.

8 is another conventional far-infrared heater 1 "disclosed in Utility Model Registration No. 0353532 (registered on June 04, 2004) by the inventor, similarly in the form of a cabinet, and the far-infrared heater 1 'of FIG. It is essentially the same as the structure of, but in order to improve the heating efficiency by maximizing the far-infrared radiation and heat dissipation area, by adopting the linear flue (8 ") structure that formed a plurality of wrinkles all over the outer surface, it is about 40% to 200 Giving an increased surface area by%.

In addition, Figure 9 is another conventional far-infrared heater (1 '") proposed in the patent application No. 2006-118115 (filed date: November 28, 2006) by the present inventor is also in the form of a cabinet of the far-infrared heater 1' of FIG. By essentially forming a plurality of hot air discharge holes (not shown) in the upper part and / or the rear part of the distal end part while being essentially the same as the structure, except that the distal end portion of the linear flue 8 is closed. Alternatively, the risk of burn accident as the exhaust filter part 9 'shown in Fig. 8 protrudes to the upper surface is prevented in advance. In the illustrated example, reference numeral 9b' denotes a multi-purpose blower.

However, almost all of the conventional far-infrared heaters 1 ', 1 ", 1'" as described above arrange the plurality of bones in parallel up and down on the linear flue 8 'and connect them to the arch flue 8a' and back The far-infrared heaters 1 ', 1 ", 1'" inevitably have a much longer length than the width since the rectangular structure of the uniform cabinet shape which opens only the front surface by attaching the reflector is adopted. There is a problem that it occupies a lot of space, and there is a certain limitation in terms of heating efficiency since the far infrared radiation direction is only in the front direction, and there is a problem that there is a certain limitation in increasing the far infrared radiation area (year surface area) per unit volume. .

Therefore, as described above, the far-infrared heaters 1 ', 1 ", 1'" having a rectangular structure in the form of a cabinet are far from compacts, and thus are mainly used in factories or workshops, rather than being used as relatively small households. It has been used mainly for heating in places such as highway rest areas, religious buildings, and large restaurants, which are open or partially open, and where ventilation is often not frequent, and the location of the walls is also used for corners or sides of walls. Inevitably, the distance difference from the far-infrared heaters 1 ', 1 ", 1'" is inevitably increased among people located in a certain space because it is difficult to expect even heating effect.

As far as the inventors understand, the conventional compact infrared heater 1a 'is the type shown in Korean Patent No. 502942 (registered on July 13, 2005), which is shown in FIG. 10, and the structure is erected vertically. From the top of the combustion chamber 7 'a linear flue 8' having a much smaller diameter diverges downwards through the arch flue 8a 'to both sides and then upwards again through the arch flue 8a'. After being extended, it is a far-infrared heater for indoor use that is focused on the filter exhaust portion 9 '.

However, the far-infrared heater 1a 'described above has a relatively much smaller diameter than the combustion chamber 7', although being compacted, and has a relatively smaller diameter than the conventional far-infrared heaters 1 ', 1 ", 1'". As a short length of flue is adopted, the overall flue gas flow is not smooth even though the partial downflow structure is adopted, and unburned gas in the flue gas after the first combustion in the combustion chamber 7 '. There is a serious problem that it is not suitable for indoor use because the secondary combustion of minute is not enough to avoid the generation of soot and odor, and as described above, since the radial direction of far-infrared rays is only in the front direction, certain limitations in terms of heating efficiency In addition, there is a problem in that there is no limit to increasing the far-infrared radiation area (year surface area) per unit volume. Over the past though the market did not reach commercial success.

As a result, in the case of the far-infrared heater in the related art, only when the length of the flue is sufficiently lengthened to a certain level or more, soot and odor can be effectively removed by full combustion by sufficient secondary combustion, so that the compactness with satisfactory performance is achieved. It has been recognized in the art that indoor far infrared heaters are not possible.

Accordingly, a first object of the present invention is to provide a compact type infrared heater having excellent heating efficiency by maximizing the far infrared radiation area per unit volume to improve the far infrared radiation and heat dissipation efficiency.

A second object of the present invention is to provide a far-infrared heater of the compact type, which is wide-angled or omnidirectionalized in a radial direction of more than 180 degrees.

The third object of the present invention is to achieve a complete combustion by primary combustion in the combustion chamber and secondary combustion in a furnace heated to a high temperature by securing a sufficient flue length, despite being a compact type, so that generation of soot or odor To provide a far-infrared heater that can effectively suppress the.

A fourth object of the present invention is to provide a compact type far infrared heater which can control the far infrared radiation direction by a pivot motion.

A fifth object of the present invention is to provide a portable compact type far-infrared heater which can be conveniently used in an enclosed residential, living, or office space such as an apartment, a single house, a small or medium sized office or a restaurant.

According to a first preferred embodiment of the present invention for achieving the above-mentioned first to third and fifth objects of the present invention, a far infrared ray having a burner and a combustion chamber having flue material coated with far-infrared radioactive material on the outer surface thereof has far infrared rays. In the heater, the flue is wound from one end of the combustion chamber and has a wound flue extending upward, and at least a portion of the wound flue has corrugations having valleys and floors. In addition, a far infrared heater is provided, wherein a cylindrical reflector is provided at an inner central portion of the wound flue.

According to a second preferred embodiment of the present invention for achieving the above-mentioned first to fifth objects of the present invention, in the far-infrared heater having a burner and a combustion chamber having a far-infrared radioactive material coated on the outer surface, the flue is described above. Has a wound-type flue which is wound up from one end of the combustion chamber and extends upwards, wherein at least a portion of the wound-type flue has corrugations having valleys and floors, and the wound-type flue An arc-shaped reflector is provided in the circumferential direction on the outer side of the inner side, and the burner, the combustion chamber and the winding type flue are located on the rotating plate, and the driven gear in the lower center of the rotating plate is pivoted by the driving gear of the driving means. There is provided a far-infrared heater characterized by moving.
According to a third preferred aspect of the present invention for achieving the above object of the present invention, the wound type flue is formed in the form of a spiral or a plurality of loops in which a plurality of loops are connected from top to bottom in a multistage loop, or zigzag. A heater is provided.

According to a fourth preferred aspect of the present invention for achieving the above object of the present invention, the flat form of the wound year is a square or elliptical or hexagonal or octagonal or an X-shaped square in the shape of a garden or chamfer. An infra-red heater is provided.

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According to a fifth preferred aspect of the present invention for achieving the above object of the present invention, the burner and the combustion chamber have a wound type flue which is located horizontally in the radial direction crossing the center or perpendicular to the center part. A far infrared heater is provided.

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According to another preferred aspect for achieving the above-mentioned various objects of the present invention, in the above-described aspect, the winding-type flue is supported and fixed by a clamp of one end of a fixing bridge extending from a cylindrical reflector or an arc-shaped reflector. A far infrared heater having a type flue is provided.

As described above, the far-infrared heater having a wound type according to the present invention is a compact type having excellent heating efficiency by maximizing the far-infrared radiation area per unit volume to improve the far-infrared radiation and heat dissipation efficiency, despite being a compact type. By securing the flue length, the primary combustion in the combustion chamber and the complete combustion by the secondary combustion in the flue heated to a high temperature can be achieved to effectively suppress the generation of soot and odors, and the radial direction is 180 degrees. Wide-angle or omnidirectional over °, high convenience for use in confined dwellings, living, or office spaces such as apartments, single-family homes, small and medium-sized offices or restaurants, and optional far-infrared radiation by pivot movement You can also control the direction.

First, in the present invention, the term 'wound winding flue' means that the flue connected to the combustion chamber has a winding shape, that is, the far infrared radiation area per unit volume (ie, the total outer surface area of the flue). It is defined as a meaning including an integral form of augmented, a typical example is a plurality of loops wound in a spiral that gradually rises upwards, or a plurality of loops located horizontally with the ground connected up and down at one end located on the same normal It may be wound in a multi-stage loop, or wound upwards in a zigzag, and the top view (plan view) is a garden or chamfered shape. Square, elliptical, hexagonal, or octagonal, or X-shaped square (in the zigzag form) inside, but the present invention is limited thereto And may be in a variety of other wound forms, and in some cases instead of rolling up gradually gradually upwards, a portion is wound on a horizontal plane and another portion extends upwards, or is wound up again The part may be wound downwards, but predominantly wound upwards.

In addition, the wound year may be formed in part or the whole of the wrinkles having a valley and the floor to increase the radiation area, in some cases may be a form in which the wrinkles and the smooth portion alternately repeated.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a far-infrared heater 1 having a wound type according to a first embodiment of the present invention, FIG. 2 is a longitudinal cross-sectional view taken along line II of FIG. 1, and FIG. 3 is a cross-sectional view taken along line II-II of FIG. 1. As mentioned for convenience of description.

The far-infrared heater 1 with the wound flue shown is stationary rather than pivotal, the structure of which is basically an upper casing 2, a lower casing 3, a burner 4, a fuel tank 3a and heating A ceramic layer that radiates far infrared rays is composed of a combustion chamber 7 coated on an outer surface and a spiral wound flue 8.

The upper casing 2 is provided with a control and display panel 2a which is operated by remote control operation so that the exhaust filter part 10 which forms the end of the winding type flue 8 protrudes to the upper surface thereof. The safety net 2c is provided around the opening 2b in which the distal end of the exhaust filter part 10 is mounted. However, as shown in FIGS. 4 and 6 to be described later, in the case where the spiral flue 8 is end closed (many holes are provided at the end), the above-described opening 2b is not necessary and the exhaust filter unit 10 is not provided. Of course, it is located below it without penetrating the upper casing (2).

Also in the lower casing 3, the fuel tank 3a may be housed in a suitable position, or optionally installed externally as a separate tank as needed.

On the other hand, the controller (not shown) can be installed in any of the upper casing 2 or the lower casing (3), the electrical connection is connected to each other by connecting the upper casing (2) or lower casing (3) It may be made through a wire (not shown) coated with a heat insulating material inside the support frame (not shown in FIGS. 4 and 6 as shown in the figure) firmly supporting the liver.

In the illustrated example, the outer surface of the wound year 8 is shown as a smooth surface, but as described above, in order to improve heating efficiency by maximizing the far-infrared radiation and heat dissipation area, the outer surface of the wound year 8 is shown. Wrinkles may be formed on the whole or at least a part thereof (for example, reference numeral 8 in FIG. 3), and in some cases, the wrinkles and the smooth parts may be alternately repeated.

The wound flue 8 can accommodate a flue that is at least three times longer at the same heater width and the same flue diameter compared to conventional flue configurations, and in addition, when forming a wrinkle in the wound flue 8 Depending on the height and depth of the floor and valleys, it is generally possible to give an increased surface area of about 40% to 200% at the same length as compared to the case of simply composed smooth surfaces.

Therefore, the configuration of the wound type 8 according to the present invention also significantly increases the heating efficiency due to the dramatic increase in the far-infrared radiation surface area and the heat dissipation surface area per unit length.

In addition, the wrinkle shape of the wrinkle portion formed in the wound type (8) may be any of a variety of shapes, it is possible to improve the heat dissipation efficiency by making the length of the wrinkles projecting upwards longer than the length projecting downwards. Of course you can.

Like the outer surface of the combustion chamber 7, the entire outer surface of the corrugated portion is coated with a far infrared ray radioactive material and is formed to radiate a large amount of far infrared rays from the increased outer surface when heated.

The planar shape of the upper casing 2 and the lower casing 3 can be any suitable shape, such as square, oval, chamfered square, hexagonal, octagonal, etc., and the upper casing 2 and the lower casing 3 The safety grille net 6a is disposed between the outer circumferential edge or the edge of the side.

On the other hand, in the illustrated example, the reflecting plate is configured in the form of a cylindrical reflecting plate 5 located in the inner central portion of the wound flue 8, so that far-infrared rays can be emitted at a 360 ° front angle.

The lower part of the cylindrical reflector 5 has an extension 5a formed in both sides of the combustion chamber 7 so as to avoid its position so that the combustion chamber 7 having a relatively large diameter can be penetrated. It is fixed by the arbitrary fixing means to the upper surface of the lower casing 3 by the support angle 5b extended below from the expansion part 5a. It is preferable to form the cleavage part 5c between the said support angles 5b so that far-infrared radiation from the combustion chamber 7 may not be inhibited as much as possible.

Although not shown, the combustion chamber 7 is firmly fixed to the upper surface of the lower casing 3 by a clamp (not shown) extending upwardly from a support (not shown) on the upper surface of the lower casing 3 and wound up. The flue 8 is firmly fixed by a clamp 15 formed at the end of the fixed bridge 14 which extends radially and is fixed to the cylindrical reflector plate 5 in the middle middle center, but such fixing means is known to those skilled in the art. It may, of course, also be within the scope of the present invention, as it may be replaced by any other suitable fixing means.

On the other hand, the wound year 8 may be formed integrally, but may also be formed in a separate piece of several pieces, of course, in the case of a detachable insert end of the connection portion for ease of insertion fixing during assembly It is formed in the form of a cylindrical body having a smooth surface.

In addition, a monitor window 7a made of quartz having high transparency and high heat resistance and excellent strength characteristics as an optional component of the present invention for observing a spark ignited from the burner 4 may be installed at one front side of the combustion chamber 7. In addition, the monitor window 7a may allow the observer to feel a sense of heat by seeing the ignition flame through the monitor window 7a.

Reference numeral 16 in the drawings is a caster for easy movement.

On the other hand, it is of course possible to select a forced blowing means (not shown) as an optional component in the present invention, which is optional in the present invention.

4 is a longitudinal cross-sectional view of the far-infrared heater 1a having the wound type flue according to the second embodiment of the present invention, and FIG. 5 is a cross-sectional view taken along the line III-III of FIG. 4 for convenience of description. Let's go.

The far-infrared heater 1a having the wound-type flue shown is a pivot rotary type, and its basic structure is substantially the same as the example shown in FIGS. The explanation will focus on the parts that are present.

The far-infrared heater 1a having such a pivotal winding type flue according to the present invention has a drive casing 9 formed on the lower casing 3, and the part forming the upper surface of the drive casing 9 is a rotating plate. It consists of 12 pieces.

In the illustrated example, the upper casing 2 and the drive casing 9 are spaced apart from each other and firmly fixed by the plurality of support frames 6, and the safety grill net 6a is the same circumference as the frame 6 described above. Although it is preferable to make it non-rotate by positioning in the case, it can also make it rotatable by positioning on the rotating plate 12 inside of the said frame 6 in some cases.

In either case, however, the arc-shaped reflector 13 can be pivotally rotated by positioning it on the rotating plate 12 described above.

In the case of the far-infrared heater 1a having such a pivotal winding type flue, the distal end portion of the winding type flue 8 is closed so that the burner 4 and the combustion chamber in accordance with the pivot rotational motion of the rotating plate 12 described above. (7) and the winding year (8) and the arc-shaped reflector (13) to be able to pivot the movement simultaneously.

The arc-shaped reflector 13 described above may be any type of shape ranging from one-third to a half-circle but not limited thereto.

In the drive casing 9 described above, a drive means such as the motor 9a, a reducer 9c connected to the motor shaft 9b, and a deceleration drive gear 9d connected upwards therein are incorporated, and the drive casing ( The rotating plate 12 constituting the upper surface of 9) has the rotating plate 12 formed by alternating forward and reverse rotation of the above-described reduction gear 9d meshed with a driven gear 12a formed below the center thereof. The pivot rotational movement is performed so that the burner 4, the combustion chamber 7, and the winding flue 8 and the arc reflector 13 are simultaneously pivoted, as described above. The transmission of power) and driven gear 12a may be achieved by various means such as direct gear bites, chains, or belts, as well as within the scope of the present invention.

On the other hand, a fixed shaft (not shown) is formed at the center of the rotating plate 12 can be rotatably supported by a bearing on the bottom surface of the drive casing 9, the drive casing for a stable pivot motion The support guide (not shown) may be installed inside the upper side portion of the side of 9 so as to support the peripheral end of the rotating plate 12 by a bearing. Detailed illustration and further description will be omitted.

The winding of the winding flue 8 is here intermediate between the clamp 15 formed at the end of the fixing bridge 14 extending from the inner side of the arc reflector 13, the combustion chamber 7 and the burner 4. The fixing of is the same as in the case of FIGS. 1 to 3 except that the fixing of the rotating plate 12 is fixed.

The rotation angle, rotation speed and pivot motion time of the pivot rotation motion are preferably configured to be arbitrarily appropriately controlled by the remote controller, and the pivot motion is also configured to automatically stop immediately or after a predetermined time elapses when the heater is stopped.

Reference numeral 12c denotes a gap (or gap) between the rotating plate 12 and the rim (not shown) extending inwardly from the top of the side of the drive casing 9.

Next, FIG. 6 is a longitudinal sectional view of a pivoting rotary far infrared heater 1b having a winding type flue according to a third embodiment of the present invention, the basic configuration of which is substantially the same as that of FIGS. 4 and 5 described above. Only the differences are mentioned.

In the illustrated example, a circular burner accommodating portion 12b is formed at the center of the rotating plate 12, and a driven gear 12a is formed at the outer periphery of the burner accommodating portion 12b, and the combustion chamber 7 is Since it is essentially the same configuration except that the burner housing 12b is formed vertically upward, further description thereof will be omitted.

On the other hand, although not shown, the far-infrared heaters (1, 1a, 1b) having the winding type flue according to the present invention described above can be installed in a suitable place a handle or a grip member (grip member) to facilitate the movement, of course It is preferably to be installed in any form at appropriate positions on both sides or the upper surface of the upper casing (2).

In addition, although not shown, if necessary, a perfume generator (or filter), an anion generator, an oxygen generator, or the like may be placed at an arbitrary location to allow more comfortable heating.

The negative ion generating assembly generates negative ions such as ozone by using silent discharge or electrolysis of a solution, but in the present invention, it is preferable to use a Siemens ozone tube.

Although the present invention has been described in detail with reference to preferred embodiments, it is not intended to limit the present invention but merely to illustrate the present invention, and various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the present invention. Of course, this is also within the scope of the present invention.

1 is a perspective view of a fixed far-infrared heater having a wound type flue according to a first embodiment of the present invention.

2 is a longitudinal cross-sectional view taken along line I-I of FIG. 1.

3 is a cross-sectional view taken along the line II-II of FIG.

4 is a longitudinal sectional view of a pivoting rotary far infrared heater having a wound flue according to a second embodiment of the present invention.

5 is a cross-sectional view taken along the line III-III of FIG. 4.

6 is a longitudinal cross-sectional view of a pivoting rotary far infrared heater having a wound flue according to a third embodiment of the present invention.

7 is a schematic front view of a far infrared heater in the form of a conventional conventional cabinet.

8 is a perspective view of a far-infrared heater in the form of a conventional cabinet as a modification of FIG.

9 is a schematic front view of a far-infrared heater in the form of a conventional cabinet as a modification of FIG.

10 is a perspective view of a conventional compact far-infrared heater.

Explanation of symbols on the main parts of the drawings

1,1a, 1b: wound far-infrared heater according to the present invention

2: upper casing 2a: control and display panel

2b: opening 2c: safety net

3: lower casing 3a: fuel tank

4: burner 4a: flame

5: cylindrical reflector 5a: extension

5b: support angle 5c: cleavage part

6: support frame 6a: safety grill net

7: combustion chamber 7a: monitor window

8: winding type year

9: drive casing 9a: motor

9b: motor shaft 9c: reducer

9d: reduction gear

10: exhaust filter unit 12: rotating plate

12a: driven gear 12b: burner housing

13: arc reflector 14: fixed bridge

15: clamp 16: caster

Claims (15)

In the far-infrared heater having a burner and a flue and a flue chamber coated with a far-infrared radioactive material on the outer surface, Said flue has a winding-type flue which winds up from one end of a combustion chamber and extends upwards, and the wrinkle part which has a valley and a floor is formed in at least one part of said winding-type flue, A far-infrared heater, characterized in that a cylindrical reflector is provided in an inner central portion of a wound flue. In the far-infrared heater having a burner and a flue and a flue chamber coated with a far-infrared radioactive material on the outer surface,      Said flue has a winding-type flue which winds up from one end of a combustion chamber and extends upwards, and the wrinkle part which has a valley and a floor is formed in at least one part of said winding-type flue, An arc-shaped reflector is provided in the circumferential direction outside the winding flue, and the burner, the combustion chamber, and the winding flue are located on the rotating plate, and the driven gear in the lower center of the rotating plate is the driving gear of the driving means. Far-infrared heater characterized by pivoting by. The far-infrared heater according to claim 1 or 2, wherein the wound type flue is formed in a spiral shape, or in a multistage loop in which a plurality of loops are connected up and down at one end, or in a zigzag shape. The far-infrared heater according to claim 1 or 2, wherein the flat shape of the wound year is a square or oval or hexagonal or octagonal or an X-shaped square inside the garden or chamfered shape. delete The far-infrared heater according to claim 1 or 2, wherein the burner and the combustion chamber are positioned horizontally along the radial direction crossing the center. The far-infrared heater according to claim 1 or 2, wherein the burner and the combustion chamber are located perpendicular to the center part. delete delete delete delete The far-infrared heater according to claim 2, wherein the wound type flue is supported and fixed by a clamp of one end of a fixing bridge extending from the arc reflector. The far-infrared heater according to claim 1, wherein the wound type flue is supported and fixed by a clamp of one end of a fixing bridge extending from the cylindrical reflecting plate. The far-infrared heater according to claim 1 or 2, wherein the end portion of the wound flue is formed of a closed end portion in which a plurality of through holes are formed. The far-infrared heater according to claim 1 or 2, wherein handles or grip members are provided on both side surfaces or upper surfaces of the upper casing.

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