JP2018179419A - Indoor heating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an indoor heating device which can maintain a function of heating a room while sufficiently purifying the air in the room.SOLUTION: A plurality of purifying plates are provided on at least one of an air inlet and an air outlet of an indoor heating device, the purifying plates being formed of a porous material or a mesh material through which air or hot air can pass. Each of the plurality of purifying plates are provided along a direction of an air flow of the air or hot air so as to be aligned in a direction crossing with the air flow of the air or hot air. Since the purifying plates are formed of a material through which air or hot air can pass, a formation of a velocity boundary layer on a surface thereof is restricted and a large part of the air or hot air that passes between the purification plates comes into contact with the purification plates. As a result, the air or hot air can be efficiently purified while sufficiently maintaining a heating function with ventilation resistance being reduced.SELECTED DRAWING: Figure 1

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to an indoor heating device that sucks in air from a suction port and blows hot air toward the room from a blowout port.

  BACKGROUND OF THE INVENTION An indoor heating device is widely used, which heats indoor air by sucking it into a room and mixing it with high temperature combustion exhaust and blowing it out as warm air. Alternatively, a room heating device of a type that generates warm air by heat exchange between air sucked from the room and high temperature combustion exhaust or hot water, and blows the obtained warm air into the room is widely used. In these indoor heating devices, the air blown out as warm air warms the room and then is sucked into the indoor heating device again and blown out indoors as warm air. For this reason, indoor air is circulated via the indoor heating device.

  Therefore, a technology has been proposed that purifies indoor air by adding a catalytic function to the filter of the intake port that the indoor heating device takes in indoor air, and decomposing components that cause odors, etc. (Patent Document 1). Alternatively, there has also been proposed a technology for cleaning indoor air by applying a catalyst component to the surface of a louver provided at a hot air outlet (Patent Document 2).

JP-A-9-133409 JP-A-9-133408

  However, the proposed technology has a problem that it is difficult to simultaneously satisfy the function of heating the room and the function of purifying the air. This is due to the following reasons. First, in the technology in which the catalytic function is added to the filter of the intake port of the indoor heating device, a large pressure loss occurs in the filter portion, so the amount of air sucked by the indoor heating device is insufficient and the indoor heating function is degraded. If the filter is roughened in an attempt to avoid this, the contact area between the air sucked from the room and the filter is reduced, and the air can not be sufficiently cleaned.

  Moreover, in the technology of applying the catalyst component to the louver at the hot air outlet, although the pressure loss does not increase, most of the blown hot air passes between the louver and the louver, so It is difficult to clean the air.

  The present invention has been made to address the above-described problems of the prior art, and an indoor heating apparatus capable of sufficiently purifying indoor air while sufficiently securing the function of heating the indoor Intended to provide.

In order to solve the problems described above, the indoor heating device of the present invention adopts the following configuration. That is,
In a room heating apparatus which sucks in air from a suction port and blows hot air from the blow out port toward the room,
At least one of the air inlet and the air outlet is formed of a porous material or mesh material through which the air or the warm air can pass, and a catalyst function is added to clean the air or the warm air. Several cleaning plates are provided,
The plurality of cleaning plates are arranged such that the cleaning plates provided in the direction along the flow of the air or the warm air cross the flow of the air or the warm air. It is characterized by

  In the room heating apparatus of the present invention, a plurality of cleaning plates formed of a porous material or mesh material through which air or warm air can pass and to which a catalytic function to clean the air or warm air is added are: It is provided in at least one of the inlet and the outlet. And although the plurality of cleaning plates are provided along the flow of air or warm air for each cleaning plate, the cleaning plates cross the flow of air or warm air. Are arranged in the direction

  If a plate-like member through which air or warm air can pass and to which a catalytic function is added is provided so as to cover the air inlet or the air outlet, air or hot air passing through the air inlet or air outlet can be Although the catalyst function can be used for efficient cleaning, on the other hand, the heating function is lowered because the ventilation resistance is increased. In addition, when a plurality of plate members whose catalytic function is added to the surface but air or warm air can not pass through are arranged in the direction intersecting the flow of air or warm air, the air flow resistance of air or warm air is Although it can be kept small, most of the air or warm air passes between the plural plate members without touching the surface of the plate member, so it is difficult to purify the air or warm air. It is. However, when the plate members are formed of a porous material or a mesh material through which air or warm air can pass, the inventors of the present application have said that each plate member is a stream of air or warm air. It has been found that most of the passing air or warm air comes in contact with the surface of the plate-like member, even if it is provided along the direction. Therefore, by adding a catalytic function to clean the air or warm air to the plate-like member formed of porous material or mesh material through which the air or warm air can pass, the air resistance is kept low while the air resistance is kept small. Or it becomes possible to clean warm air efficiently.

  Further, in the indoor heating apparatus according to the present invention described above, at least one of the air inlet and the outlet is arranged in a direction intersecting the flow of air or warm air by arranging a plurality of cleaning plates. You may divide into the gap of Then, a part of the plurality of gaps may be provided with a blocking portion that blocks the flow of air or warm air.

  In this way, in the gap provided with the inhibition portion, a negative pressure may be generated with respect to the gap in which the inhibition portion is not provided. Furthermore, since the cleaning plate defining the gap is formed of a porous material or mesh material through which air or warm air can pass, the blocking portion is provided from the gap where the blocking portion is not provided. A stream of air is generated towards the gap. And although a detailed mechanism is mentioned later, when such a flow of air generate | occur | produces, the air or warm air which passes a clearance gap becomes easy to contact the surface of a purification | cleaning board. As a result, it is possible to clean air or warm air more efficiently.

  Further, in the above-described indoor heating device of the present invention, a plurality of cleaning plates may be provided at the intake port.

  Since the temperature of the air inlet is less likely to rise compared to the air outlet, the catalyst function added to the cleaning plate can be prevented from being deteriorated by the influence of temperature. As a result, even with long-term use, it is possible to stably clean the room air.

  Further, in the above-described indoor heating device of the present invention, a photocatalytic function may be added to the cleaning plate in which the function of cleaning air or warm air by receiving light is activated.

  The room heating system is usually used in the daytime or in a bright room illuminated with a light, etc. Therefore, if a photocatalytic function is added to the cleaning plate, the indoor light can activate the catalytic function. It is possible to clean the air or the warm air efficiently.

  In addition, the indoor heating device of the present invention in which the photocatalytic function is added to the cleaning plate may include an ultraviolet light irradiation unit that emits ultraviolet light toward the cleaning plate.

  When the ultraviolet light is irradiated, the photocatalytic function can be greatly activated, so that it is possible to efficiently clean the air or the warm air.

It is sectional drawing which shows the rough internal structure of the indoor heating apparatus 1 of 1st Example. It is a perspective view which shows the external appearance shape of the inlet port 40 of the indoor heating apparatus 1 of 1st Example. It is explanatory drawing which showed a mode that the filter 42 formed flatly with the same porous material or mesh material as the purification | cleaning board 41 mounted in the indoor heating apparatus 1 of 1st Example passes air. It is explanatory drawing which shows the case where the filter 42 formed with the same porous material or mesh material as the purification | cleaning board 41 mounted in the indoor heating apparatus 1 of 1st Example is applied to the inlet port 40. FIG. It is explanatory drawing which showed a mode that several purification board 41 was arranged in the inlet port 40 of the indoor heating apparatus 1 of 1st Example. Even if it arrange | positions the plate-shaped member which apply | coated the catalyst component to the surface in the direction along the flow of air, it is explanatory drawing which showed the reason that the cleaning of air is difficult. The indoor heating device 1 of the first embodiment is an explanatory view showing the reason why the air can be cleaned by arranging the cleaning plate 41 to which the catalytic function is added in the direction along the flow of air. . It is explanatory drawing about the state which air flows between the purification board 41 and the purification board 41. FIG. It is explanatory drawing about 2nd Example equipped with the obstruction part 43 in the position of one jump of the clearance gap between the several intake ports 40. FIG. By providing the inhibition portion 43 at the position of one jump of the gap between the intake ports 40, it is an explanatory view showing the reason that the air can be efficiently cleaned. It is explanatory drawing which showed the other aspect of 2nd Example. It is explanatory drawing which showed the further another aspect of 2nd Example. It is explanatory drawing about the indoor heating apparatus 1 of the 1st modification which mounts the ultraviolet LED which activates a photocatalytic function. It is explanatory drawing which showed the indoor heating apparatus 1 of the 2nd modification which incorporated the heat exchanger.

A. First embodiment:
FIG. 1 is a cross-sectional view showing a rough internal structure of the indoor heating device 1 of the first embodiment. As illustrated, the indoor heating device 1 according to the first embodiment includes a combustion burner 20 for burning fuel such as fuel gas, a warm air fan 30, etc. inside a main case 10 formed in a substantially box shape. It has a built-in structure. An air intake port 40 for taking in air is formed on the back side of the main body case 10, and when the hot air fan 30 is rotated, indoor air from the air intake port 40 is taken into the inside of the main body case 10 There is.

  The combustion burner 20 generates a high temperature combustion exhaust by burning a fuel using a part of the air taken in from the inlet 40. Then, the generated combustion exhaust is mixed with the remaining air not used for combustion in the inside of the main body case 10 and then becomes hot air from the outlet 50 formed on the front side of the main body case 10 It is blown out indoors.

  FIG. 2 is a perspective view showing the external shape of the intake port 40 of the indoor heating device 1 of the first embodiment. As illustrated, at the back of the main body case 10 of the indoor heating device 1, the inlets 40 are opened at a plurality of locations (two locations in the illustrated example), and a plurality of inlets 40 are provided at the inlets of the respective inlets 40. A number of cleaning plates 41 are mounted parallel to one another. Here, as shown in FIG. 3, these cleaning plates 41 are plate-like members formed of a porous material or mesh material through which air can pass. As a material for forming the cleaning plate 41, it is possible to use an open-cell foam metal, a mesh material obtained by compacting a metal fine wire, or the like. Furthermore, a photocatalytic function is added to the surface of the cleaning plate 41 by a method such as coating or chemical treatment, so that the air passing through the cleaning plate 41 can be cleaned.

  In general, a plate-like member formed of such a material (a material through which air can pass and to which a catalyst function is added to clean the passing air is added) is, as exemplified in FIG. It is usually used as a filter 42 covering the ten inlets 40. However, if such usage is made, the air flow resistance at the air intake port 40 becomes large, so the amount of air to be inhaled decreases, and it becomes difficult to secure a sufficient heating function. Therefore, in the indoor heating device 1 according to the first embodiment, as shown in FIG. 5, the direction of the cleaning plate 41 is further set as the direction along the flow of the air flowing in from the air inlet 40, such a direction. A plurality of cleaning plates 41 are provided at the inlet of the intake port 40.

  According to the conventional experience, when the plate-like member having a catalytic function added to the surface is disposed in the manner as shown in FIG. 5, most of the air passes through the gap between the plate-like members, thus cleaning the air. Was difficult to However, when experiments were conducted using a cleaning plate 41 formed of a porous material or mesh material through which air can pass, even if the arrangement is as shown in FIG. 5, the air can be cleaned with sufficient efficiency. It was confirmed that it could be The reason is considered to be as follows.

  FIG. 6 shows the case where a plurality of plate-like members 91 made of a material through which air does not pass is arranged in a direction along the flow of air. Air flowing into the main body case 10 from the intake port 40 passes through the gap between the plate-like member 91 and the plate-like member 91. The speed of the air at this time is roughly the same speed (the speed obtained by dividing the amount of air per unit time by the opening area) regardless of the distance to the plate-like member 91. However, it is known that there is a thin layered region called "velocity boundary layer" near the pole surface of the plate-like member 91, in which almost no air flows. The reason why this velocity boundary layer occurs is as follows.

  In general, all fluids, including air, have a property called "viscosity". And it is known that the fluid having viscosity can not move relative to the surface of the object at the portion in contact with the object. Therefore, even if air is flowing at a location sufficiently away from the plate-like member 91, the air stops at the portion in contact with the surface of the plate-like member 91. Then, the air adjacent to the stopped air (air at a portion slightly away from the surface of the plate-like member 91) is dragged by the stopped air in contact with the surface of the plate-like member 91. For this reason, even if air is flowing at a location sufficiently away from the plate-like member 91, the air is slightly (although not completely stopped) at a portion slightly away from the surface of the plate-like member 91. It only flows to Furthermore, as a result of the air adjacent to the slightly flowing air (air present behind the slightly flowing air as viewed from the plate-like member 91) being dragged by the slightly flowing air, There is only a slight flow of air. However, as compared with the case where it is dragged by the stationary air present on the surface of the plate-like member 91, the air will flow when it is slightly dragged by the flowing air. Furthermore, as viewed from the plate-like member 91, as for the air present on the opposite side, the air flows only slightly as a result of being dragged by the air that flows only a little. As described above, in the vicinity of the surface of the plate-like member 91, there is a region where the air hardly flows by being dragged by the air that is in contact with the plate-like member 91 and stops. This area is an area called a velocity boundary layer.

  Then, as shown in FIG. 6, when the plate-like member 91 is disposed in the direction along the flow of air, the surface of the plate-like member 91 is covered with the velocity boundary layer in which the air does not flow. The air of this kind passes through the gap between the plate-like member 91 and the plate-like member 91 without touching the surface of the plate-like member 91. Therefore, even if a catalytic function is added to the surface of the plate-like member 91, it is considered that the air could not be cleaned.

  On the other hand, the cleaning plate 41 of the first embodiment is formed of a porous material or mesh material through which air can pass. For this reason, as shown by a broken arrow in FIG. 7A, the flow of air is also generated on the surface portion of the cleaning plate 41. As described above, the velocity boundary layer of the plate-like member 91 is present on the surface of the cleaning plate 41 because it is generated by a decrease in velocity so as to be dragged by the stagnant air present on the surface of the object. If the air is flowing, no velocity boundary layer is created. Of course, since the air on the surface of the cleaning plate 41 flows only slowly, it is dragged by this slowly flowing air, and the velocity of the air flowing near the surface of the cleaning plate 41 decreases. However, even in such a case, the thickness of the velocity boundary layer formed on the surface of the cleaning plate 41 is significantly thinner than the velocity boundary layer formed on the surface of the plate-like member 91 through which air does not pass. Incidentally, for the purpose of comparison with FIG. 7 (a), FIG. 7 (b) conceptually shows that a velocity boundary layer is formed on the surface of the plate-like member 91.

  And, as described above, since the velocity boundary layer has a function of protecting the surface of the object from the flow of air, if the velocity boundary layer formed on the surface of the cleaning plate 41 becomes significantly thin, The flow of the air easily makes it easy to touch the surface of the cleaning plate 41. As a result, in the case of the cleaning plate 41 formed of a porous material or mesh material through which air can pass, as shown in FIG. 5, most of the cleaning plates 41 are disposed along the air flow. It is considered that air comes in contact with the surface of the cleaning plate 41 and is cleaned.

  As shown in FIG. 5, when a plurality of cleaning plates 41 are arranged along the flow of air, most of the air passing between the cleaning plates 41 and 41 is: In order to contact the surface of the cleaning plate 41, the state of air between the cleaning plate 41 and the cleaning plate 41 is also important. Therefore, this point will be supplemented and described below.

  FIG. 8 is an explanatory view showing the state of air flow between the cleaning plate 41 and the cleaning plate 41. As shown in FIG. FIG. 8 (a) shows a flow state called “laminar flow state”, and FIG. 8 (b) shows a flow state called “turbulence state”. In the laminar flow state shown in FIG. 8 (a), the air flows quietly and hardly mixes with the air flowing next to it. Therefore, for example, the air flowing into between the cleaning plate 41 and the cleaning plate 41 is cleaned from the positions indicated as “a”, “b” and “c” in FIG. This order is maintained even after passing through the gap between the plate 41 and the cleaning plate 41. This is called laminar flow because it seems to flow in layers. If the flow of air passing between the cleaning plate 41 and the cleaning plate 41 is in a laminar flow state, the air cleaned on the surface of the cleaning plate 41 is indicated by a broken arrow in the figure. As shown, it flows near the surface of the cleaning plate 41 as it is. Therefore, it is considered that the air to be cleaned is limited to the air flowing near the surface of the cleaning plate 41, and most of the air passes between the cleaning plate 41 and the cleaning plate 41. Be

  On the other hand, in the turbulent flow state shown in FIG. 8B, the air flows while mixing with the air flowing next. For example, assuming that the air flowing in from the positions indicated by “a”, “b” and “c” in FIG. 8B is air a, air b and air c for convenience, these air and cleaning plate 41 As it passes between the air conditioner and the cleaning plate 41, it mixes with each other, and when it passes through the gap between the cleaning plate 41 and the cleaning plate 41, the air a, the air b, and the air c It will be in the mixed state. For this reason, since the air cleaned on the surface of the cleaning plate 41 immediately leaves the vicinity of the surface of the cleaning plate 41, new air which has not been cleaned is immediately supplied thereafter. The surface of the cleaning plate 41 is to be cleaned. If the air flowing between the cleaning plate 41 and the cleaning plate 41 is in a turbulent state, this is repeated to clean most of the air.

  Here, it is known that whether the state of flow of fluid (here, air) is laminar or turbulent can be estimated using an index called Reynolds number. The Reynolds number is obtained by multiplying the product of the representative velocity of the flow (here, the velocity obtained by dividing the flow rate of air by the cross-sectional area) by the representative dimension (here, the distance between the adjacent plate members 91) In this case, it is obtained by dividing by the dynamic viscosity coefficient of air), and when the Reynolds number is small, it becomes laminar flow state, and when it is large, it becomes turbulent flow state. In the indoor heating device 1 of the first embodiment, when the Reynolds number of the air flowing in from the intake port 40 is calculated, the flow state is considered to be a turbulent state shown in FIG. 8 (b).

  Of course, even if the air flowing between the cleaning plate 41 and the cleaning plate 41 is in a turbulent state, the surface is covered with the velocity boundary layer like the plate-like member 91 described above with reference to FIG. If you can't clean the air. The reason is that the air in the velocity boundary layer hardly moves, so most of the air flowing outside the velocity boundary layer passes without touching the surface of the cleaning plate 41. However, as described with reference to FIG. 7, since the cleaning plate 41 is formed of a porous material or mesh material through which air can pass, generation of a velocity boundary layer is significantly suppressed. As a result, the air flowing between the cleaning plate 41 and the cleaning plate 41 comes into contact with the surface of the cleaning plate 41 to be cleaned next, in combination with the air flow being in a turbulent state. In particular, it is possible to clean most of the air.

  Although the cleaning plate 41 is provided in the intake port 40 in the first embodiment described above, the position where the cleaning plate 41 is provided does not necessarily have to be the intake port 40. A plurality of cleaning plates 41 may be provided at the outlet 50. However, while warm air passes through the blowout port 50, air taken in from inside the room passes through the air intake port 40. Therefore, if the air intake port 40 is provided, the cleaning plate 41 is unlikely to be hot. Therefore, it is preferable to provide the photocatalyst added to the cleaning plate 41 to the intake port 40 from the viewpoint of avoiding the possibility of deterioration due to the influence of temperature. Of course, depending on the type of catalyst, there is also a catalyst whose activity is higher at a higher temperature. Therefore, when it is desirable to provide the cleaning plate 41 at the outlet 50 when adding such a catalytic function, May exist.

B. Second embodiment:
In the first embodiment described above, a plurality of cleaning plates 41 are provided in the intake port 40 (or the blowout port 50), and the air flowing from the intake port 40 (or the warm air flowing out from the blowout port 50) is The cleaning plates 41 and 41 have been described as passing through the respective gaps formed between the cleaning plates 41 and 41. However, a part of the plurality of gaps formed between the cleaning plate 41 and the cleaning plate 41 may be provided with a member that blocks the passage of air or warm air.

  FIG. 9 is an explanatory view of a second embodiment in which an inhibiting portion 43 for inhibiting the passage of air (or warm air) is provided in the gap between the cleaning plate 41 and the cleaning plate 41. As shown in FIG. The upper and lower end sides of the elongated plate-like member are bent to form the U-shaped shape of the inhibition portion 43 illustrated. The cleaning plate 41 is attached to the upper end surface and the lower end surface of the inhibition portion 43 formed by bending. As a result, the clearance between the cleaning plate 41 and the cleaning plate 41 is a gap closed by the blocking portion 43 and a gap through which air (or warm air) can pass without being blocked by the blocking portion 43. , Are arranged in an alternating manner. As described above, if the blocking portion 43 is provided in the gap of the jump position (the position of one jump in the example shown in FIG. 9) among the plurality of gaps where the blocking portion 43 is not provided, air or It is possible to clean the wind more efficiently.

  FIG. 10 is an explanatory view showing the reason why it is possible to efficiently clean the air or the warm air by providing the inhibition portion 43 at a position where the plurality of gaps fly. As shown in the figure, in the gap provided with the inhibition portion 43, the air (or the warm air) that would otherwise flow in originally would not flow in, so a negative pressure may be exerted on the gap where the inhibition portion 43 is not provided. . Since the cleaning plate 41 is formed of a porous material or mesh material through which air can pass, as shown by the broken arrows in the figure, the cleaning plate 41 is inhibited from the gap where the inhibiting portion 43 is not provided. A flow of air is generated toward the gap where the portion 43 is provided and the negative pressure is felt. For this reason, as described above with reference to FIG. 7, originally, only a small velocity boundary layer is formed on the surface of the cleaning plate 41, but the velocity boundary layer is sucked into the cleaning plate 41. As a result, the thickness of the velocity boundary layer is further reduced. As a result, since the air or warm air is more easily contacted by the surface of the cleaning plate 41, it is possible to clean the air or warm air more efficiently.

  In the second embodiment described above, the plurality of cleaning plates 41 are arranged at equal intervals, and thus, the width is the same for the plurality of gaps. However, when the inhibition portion 43 is provided in a part of the gaps, the passage resistance of the intake port 40 (or the blowout port 50) is increased. Therefore, as illustrated in FIG. 11, the width 41a of the gap in which the inhibition portion 43 is not provided may be made wider than the width 41b of the gap in which the inhibition portion 43 is provided. In this way, it is possible to suppress an increase in passage resistance due to the inhibition portion 43 being provided in a part of the gaps.

  Alternatively, in the above-described second embodiment, the gap is closed by the blocking portion 43 in the gap provided with the blocking portion 43, and it has been described that air or warm air can not pass through. However, the blocking portion 43 does not necessarily have to close the gap, and may block passage of air or warm air, for example, as shown in FIG. 12. Even in such a blocking portion 43, in the gap in which the blocking portion 43 is provided, the gap in which the blocking portion 43 is not provided has a negative pressure. As a result, a flow of air is generated from the gap where the blocking portion 43 is not provided toward the gap where the blocking portion 43 is provided, and the generation of the velocity boundary layer is suppressed. It becomes possible to clean well.

C. Modification:
Several modifications can be considered to the first and second embodiments described above. Below, these modifications are briefly described.

  In the indoor heating device 1 of the first embodiment and the second embodiment described above, no component for activating the photocatalytic function added to the cleaning plate 41 is mounted. However, as in the first modified example illustrated in FIG. 13A, the ultraviolet LED 60 for generating ultraviolet light is mounted inside the main body case 10, and the ultraviolet light is irradiated toward the cleaning plate 41. It may be Since the ultraviolet light has a large effect of activating the photocatalytic function, this makes it possible to activate the photocatalytic function added to the cleaning plate 41 and efficiently clean the air or the warm air. The ultraviolet LED 60 of the first modified example corresponds to the "ultraviolet light irradiator" in the present invention.

  Further, in the first modified example described above, a plurality of cleaning plates 41 may be arrayed so as to draw an arc toward the inside of the main body case 10 as illustrated in FIG. As exemplified in 13 (c), they may be arranged in a mountain shape. By so doing, the ultraviolet light from the ultraviolet LED 60 can easily reach the cleaning plate 41, so it is possible to further activate the photocatalytic function added to the cleaning plate 41.

  In the first embodiment, the second embodiment, and the first modification described above, the combustion burner 20 is mounted inside the main body case 10, and the combustion exhaust generated by the combustion burner 20 and air are mixed. It has been described that the hot air is generated. However, as shown in FIG. 14, the heat exchanger 21 is mounted instead of the combustion burner 20, and the high temperature hot water or the high temperature combustion exhaust generated outside is supplied to the heat exchanger 21 and sucked from the room. By exchanging heat with air, warm air can also be generated. Also with respect to the inlet 40 or the outlet 50 of the indoor heating device 1 of the second modification, the cleaning plates 41 described above are provided in the direction along the flow of air or warm air. For example, the air or the warm air can be cleaned without increasing the air flow resistance at the air inlet 40 or the air outlet 50. As a result, the room air can be sufficiently cleaned while the room heating function is sufficiently ensured.

  Although various embodiments and modifications have been described above, the present invention is not limited to the above-described embodiments and modifications, and can be embodied in various forms without departing from the scope of the invention.

10: Body case, 20: combustion burner, 21: heat exchanger,
30: warm air fan, 40: air intake, 41: cleaning plate,
42 ... filter, 43 ... inhibition part, 50 ... air outlet,
60 ... ultraviolet LED, 91 ... plate member.

Claims (5)

In a room heating apparatus which sucks in air from a suction port and blows hot air from the blow out port toward the room,
At least one of the air inlet and the air outlet is formed of a porous material or mesh material through which the air or the warm air can pass, and a catalyst function is added to clean the air or the warm air. Several cleaning plates are provided,
The plurality of cleaning plates are arranged such that the cleaning plates provided in the direction along the flow of the air or the warm air cross the flow of the air or the warm air. An indoor heating system characterized by In the indoor heating device according to claim 1,
At least one of the air inlet and the air outlet is divided into a plurality of gaps arranged in a direction intersecting the flow of the air or the warm air by arranging the plurality of cleaning plates.
An indoor heating device characterized in that an inhibition portion that inhibits the flow of the air or the warm air is provided in a part of the gaps among the plurality of gaps. In the indoor heating device according to claim 1 or 2,
The indoor heating device, wherein the plurality of cleaning plates are provided at the air intake port. The indoor heating device according to any one of claims 1 to 3.
An indoor heating device characterized in that the plurality of cleaning plates have a photocatalytic function of activating the function of cleaning the air or the warm air by receiving light. In the indoor heating device according to claim 4,
An indoor heating device comprising an ultraviolet light irradiation unit that irradiates ultraviolet light toward the cleaning plate.

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