JP2002369866A - Sauna device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sauna chamber of high heat efficiency recognizable as a fire resisting structure independently. SOLUTION: In the sauna device, a heat radiation pipe is provided inside the sauna chamber, a burner is provided in a machine chamber adjacent to the sauna chamber and the combustion gas is discharged through the heat radiation pipe to outdoor air. A ventilating and cooling pipe is coaxially provided through a ventilating clearance on the outer side of the combustion pipe of the burner, and on a burner side, the ventilating clearance is closed and the outdoor air can be supplied into the ventilating clearance. Also, a burner attaching hole having an inner diameter larger than the outer diameter of the burner is provided on the side wall of the sauna chamber and the burner is attached inside the burner attaching hole through an attaching plate capable of closing a clearance between the inner wall surface of the attaching hole and the burner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a sauna apparatus, and more particularly to a sauna apparatus using gas or oil as fuel.

[0002]

2. Description of the Related Art In Europe, stones called sauna stones have been placed on the upper part of a furnace using firewood or coal as fuel for a long time to heat a sauna room by air convection and far-infrared radiation from the sauna stones. A sauna of the type that humidifies the sauna room by pouring water on the stones and generating steam was generally used, but after that a sauna called a similar Finnish sauna using electric power as a heat source,
Widespread throughout the world.

On the other hand, in Japan, a far-infrared ray type sauna, which burns gas inside a combustion tube, emits far-infrared rays from a high-temperature combustion tube, and heats a sauna room, is disclosed in Japanese Patent Publication No. 60-168455. Japanese Patent Application Laid-Open No. 9-56770 discloses a technique for generating steam and aroma in a sauna room to increase the humidity and further enhancing the sauna bath effect by the aroma, and is gradually spreading.

On the other hand, even in Europe, which can be said to be the home of a sauna, using heat of gas combustion as a heat source is more energy saving and running cost lower than using electric power as a heat source. Thus, saunas using heat of combustion of gas as a heat source are becoming widespread.

[0005] This sauna heater comprises a heat radiating tube provided in a sauna room, and a burner provided in a machine room adjacent to the sauna room and having a combustion tube connected to the heat radiating tube, and is generated in the combustion tube. The combustion gas is configured to be released to the outside air through a heat radiation tube. Since the combustion tube has a considerable length, providing it entirely outside the sauna room is not only space-consuming but also problematic in terms of thermal economy. For this reason, a part is drawn into the sauna room. However, since the combustion tube is heated to a temperature higher than the ignition temperature of the wood, the combustion tube inlet of the sauna room is specially designed.

For example, in the NW pyramid-type sauna gas oven, a product of a well-known manufacturer, Westenberg, a heat-radiating tube wound in a substantially pyramid-shaped coil whose hem is spread downward is provided in a water-resistant housing. Inside, a sauna oven is used in which a large number of sauna stones are stacked on top of each other, but at one end of the pyramid-shaped radiating tube, there is a combustion tube that leads to a burner provided in the machine room. The combustion tubes penetrate the walls of the sauna room, and one half is provided in the machine room and the other half is provided in the sauna room.

A through hole having a diameter much larger than the diameter of the combustion tube is provided in the through portion of the combustion tube, and a cooling ventilation pipe having a diameter larger than the diameter of the combustion tube is coaxially provided between the through hole and the inner wall of the through hole. A considerable gap is provided and inserted, and the combustion pipe is fixed via a partition plate that can close the gap between the inner wall of the through hole and the outside air into the sauna room through the gap between the cooling ventilation pipe and the combustion pipe. Let in
In addition to cooling the combustion tube, the heat of the combustion tube is not transmitted to the side wall of the sauna room.

However, this sauna apparatus has a serious problem in fire prevention. In other words, the sauna room has a much higher possibility of fires than other rooms, such as high temperature, low relative humidity, and the use of many highly flammable woods. Instructed to make the sauna room an independent fireproof structure when constructing the sauna room.

Considering the structure of this gas sauna from such a viewpoint, when a fire occurs in the sauna room, flames and smoke easily flow into the machine room through the gap between the cooling ventilation pipe and the combustion pipe. Due to the fire spread in the machine room, the sauna room is not recognized as a separate fireproof structure and therefore its installation is not permitted. It is conceivable to provide a partition plate to close the through hole to prevent the spread of fire.However, if the flow of air is cut off in such a way, the combustion tube on the machine room side of the partition plate is not air-cooled but is overheated. Is newly generated.

[0010] Since combustion air and fuel gas for the gas sauna are supplied to the machine room, if the fire spreads there is a danger that the fire may easily become a fire and cause an explosion flame. There are defects. In addition, in this structure, most of the combustion pipes protrude outside the sauna room, occupying a large amount of space, so it is difficult to install in a narrow Japanese house and there is a great risk of fire. There is also a problem that heat radiated from this portion is wasted.

Furthermore, in this sauna apparatus, a sauna stone is mounted on a combustion tube or a heat radiation tube, and water is applied to the sauna stone to increase the humidity in the sauna room. In comparison with the above, there is a problem that the volume of the combustion chamber and the heat transfer area are required more and the device becomes excessively large. In addition, there is also a problem that the water applied to the sauna stone directly touches the combustion pipe and the heat radiating pipe, particularly, their welds, so that the pipes are deformed and cracked. In addition, if a burner and a combustion tube are provided in the combustion chamber, the thermal efficiency can be increased and the floor area can be minimized. However, in the conventional configuration, a sauna bathe is burned by infrared rays or a fire occurs in the sauna room. Various dangers arise.

[0012]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and has as its object the first purpose is to provide a structure in which a sauna room is recognized as having a complete fireproof structure. To provide a new and safe sauna device. A second object of the present invention is that the burner is installed in a mounting hole provided in the sauna room or its side wall, and the combustion tube is completely provided in the sauna room, but there is no danger of burns or fire, Accordingly, it is an object of the present invention to provide an economical sauna device which requires a minimum floor area of a machine room, does not wastefully dissipate combustion heat, and has a high thermal efficiency. Furthermore, even when the combustion tube is provided outside the sauna room, a sauna device that does not impair the thermal efficiency and is free from fire and burns is provided.

[0013]

In order to solve the above-mentioned problems, in a sauna apparatus according to the present invention, a combustion tube provided for supplying combustion gas to a heat radiating tube provided inside a sauna room is provided. On the outside, a ventilation cooling pipe is provided coaxially via a ventilation gap, the ventilation gap is closed on the burner side, and a device capable of supplying outside air is provided in the ventilation gap. In this case, the burner, the combustion pipe and the ventilation cooling pipe may be located inside or outside the sauna room.

When the banner and the banner are provided in the sauna room, the combustion tube does not have to penetrate the wall of the sauna room, so that the sauna room can be easily provided with a complete fireproof structure.
Also, when the burner is provided outside the sauna room, the ventilation cooling pipe is not overheated so much that the side wall of the sauna room can be airtightly penetrated.
The sauna room can be easily made to have a complete fireproof structure.
Further, since the combustion tube heated to a high temperature is not exposed and does not emit intense infrared radiation, there is no danger of burns or fire even if it is installed in a sauna room.

As a device for supplying outside air into the ventilation gap, for example, a blower blower provided in a machine room, and a blower tube communicating the blower opening of the blower blower with the burner side end of the ventilation cooling tube. Is used. Further, the high-temperature air supplied into the ventilation gap may be discharged into the sauna room, but it is also recommended to use it as a part of the combustion air of the burner.

The shape of the heat radiating tube is not particularly limited, but it is recommended to use a heat radiating tube formed in a U-shape in one horizontal plane and connected in multiple stages in the vertical direction. In another embodiment, a coil wound in a pyramid shape along a rectangular chord winding in which the distance between opposite sides gradually increases from top to bottom is used. A combustion tube is connected to the top end of the heat radiation tube, the bottom end is drawn out of the sauna room, and forced exhaust is performed by a suction and exhaust blower if necessary. Therefore, it is recommended to provide a small hole for draining water at the bottom of the radiator tube. It is desirable to provide an evaporating dish for humidification above these heat radiation tubes with an appropriate gap therebetween. A sauna stone may be placed on the humidifying evaporating dish.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view showing the structure of a main part of the above-mentioned known Westenberg sauna oven.
FIG. 2 is a cross-sectional view showing a configuration of a main part of the sauna apparatus according to the present invention. FIG. 3 is a view showing an embodiment of the sauna apparatus shown in FIG. FIG. 4 is a side view of the apparatus shown in FIG. 3, FIG. 5 is a cross-sectional view taken along the line AA in FIG. 4, and FIG.
4 is a side view showing an upper structure of a heat radiating tube according to a second embodiment different from that shown in FIG. 4, a partially enlarged sectional view near a through hole in FIG. 3, and FIG. It is explanatory drawing which shows the arrangement | positioning of a part of a bench and a radiation pipe.

In FIG. 1, 101 is a sauna room, 102 is a machine room, 103 is a fire-resistant partition wall, 104 is a through hole provided in the partition wall 103, 105 is a heat insulating partition plate, 106 is a combustion pipe, and 107 is ventilation. Gap, 108 is a burner, 108-1 is a burner control device, 109,
110 and 111 are heat radiation tubes, 112 is a through hole of the heat radiation tube 111, 113
Is a heat insulating gap, 114 is a suction blower, and 115 is a cooling blower tube.

The sauna room 101 and the machine room 102 are partitioned by a partition wall 103. The partition wall 103 has a burner in the machine room 102.
A large-diameter through hole 104 is provided to penetrate a combustion tube 106 connected to the crater 108. One half of the combustion tube 106 is the machine room 10
2 and the other half is inserted into the sauna room 101 and communicates with the most upstream end 109 of the heat radiation tube. Main part of heat radiation tube 1
10 is wound in a pyramid shape so as to gradually increase in diameter from the top to the bottom, and the most downstream end 111 thereof passes through a through hole 112 provided in the partition wall through a gap 113, and then again. It is drawn out to the machine room 102 and connected to the suction of the suction blower 114.

At a portion where the combustion tube 106 passes through the through hole 104 of the partition wall 103, a cooling ventilation tube 115 is provided between the inner wall surface of the through hole 104 and the outer surface of the combustion tube 106. The heat insulating partition plate 105 is coaxially held between the through hole 104 and the combustion tube 106 via appropriate gaps 104 and 107, respectively. That is, an adiabatic gap 104 is provided between the cooling ventilation pipe 115 and the through hole 104, and a ventilation cooling gap 107 is provided between the cooling pipe 106 and the combustion pipe 106.
Since the outside air flows toward the sauna room through the ventilation cooling gap 107 due to the draft action caused by the warm air generated in 1, the combustion tube 106 is appropriately cooled, and its overheating is prevented.

Normally, a sauna stone is clogged around and above the radiator tube 110. However, even with such a structure, the combustion gas at the entrance of the radiator tube is appropriately reduced. Even if the sauna stone is loaded, the combustion tube 106 will not be overheated. If it is assumed that the combustion tube 106 is housed only inside the sauna room 101,
In order to lower the combustion gas flowing into 10 to an appropriate temperature,
It is necessary to provide a long and large combustion tube, and it may be necessary to configure so as not to load the sauna stone on the combustion tube 106. Will be enough. However, this configuration has significant fire protection and thermal efficiency issues as described above.

That is, since the sauna room 101 has a higher possibility of fire occurrence than other rooms, such as high temperature, low relative humidity and heavy use of highly flammable wood, fire engines in various parts of Japan Requires that the sauna room 101 be of an independent fireproof construction. Considering this structure from such a viewpoint, when a fire occurs in the sauna room 101, flames and smoke leak into the machine room through the ventilation cooling gap 107, and conversely, combustion air flows in the sauna room 101. When the explosive combustion occurs, the flame or smoke easily blows into the machine room 102, and the fire spreads to the machine room 102. Further, there is a similar danger in the gap 112.

Since combustion air and fuel gas are supplied to the machine room 102, if they are ignited, a large fire may easily occur and even an explosion may occur. In this structure,
The high temperature portion of the combustion tube 106 is outside the sauna room 101, and not only the heat radiated from this portion is wasted, but also the surrounding habitability is impaired.

In FIG. 2, 1 is a sauna room, 2 is a machine room,
3 is a fire-resistant partition wall, 4 is a through hole for mounting a burner provided in the partition wall 3, 6 is a combustion pipe, 8 is a burner, 8-1 is a burner control device, 8-2 is a gas supply pipe, 8- 3 is the air intake,
11-2, 11-3 are heat radiation tubes, 14 is a suction blower, 15-1, 1
Reference numerals 5-2, 15-3, and 15-4 denote an enclosure plate constituting a protective guard, 16 denotes a burner mounting plate, 17 denotes a cooling pipe, 17-1 denotes a cooling air pipe, 18 denotes a blower, 21 -1 is an evaporating dish for humidification, and 22 is a sauna stone.

In the present invention, the through hole 4 provided in the partition wall 3
Is a burner mounting hole, and the burner 8 is mounted inside the through hole 4 by a large mounting plate 16 that can close the mounting hole 4, and the opening of the through hole on the sauna room side is closed by the mounting plate 16. On the front of the burner 8, along with the combustion tube 6,
A cooling pipe 17 is provided coaxially so as to include the combustion pipe 6,
At the end of the gap between the combustion pipe 6 and the cooling pipe 17 on the burner side, a blower pipe 17 communicating with a blower blower 18 provided in the machine room 2 is provided.
−1 are connected, and fresh air at room temperature in the machine room 2 is forcibly sent to the cooling pipe 17, and this air is
The air is heated while cooling the combustion pipe 6 while flowing through a gap between the cooling pipe 17 and the heated air, and flows out from the pipe end of the cooling pipe 17 and is supplied to the sauna room 1 as shown by the arrow.

For this reason, the inside of the sauna room is forcibly ventilated, which is not only safe for hygiene but also the temperature of the sauna room is around 60 ° C. in the salt sauna which is popular in recent years and the low temperature sauna which is favored by women. Because of the low temperature, oils and fats generated from the human body are not sufficiently decomposed, and there is a problem that if cleaning is neglected, a rotten odor is generated. By properly increasing the amount of odor, this odor problem is naturally resolved.

The combustion gas in the combustion tube 6 heats the air flowing through the gap between the combustion tube 6 and the cooling tube 17 as shown by the arrow, and flows through the combustion tube 6 while decreasing the temperature. As shown by the dotted line, it passes through the U-bend tube 6-1 and enters the heat emission tube 9 provided substantially parallel to the combustion tube 6 shown in FIG. Heat radiation tube
It flows to 10-1, 10-2, 10-3, 10-4, 10-5, 10-6, and 10-7, flows into the lowest heat radiation tube 11-1, and from its end. Discharge pipe 11 led to the machine room
The air flows out of the sauna room by -3 and is discharged into the atmosphere by the exhaust blower 14.

It is recommended that the heat radiation tube 11-1 be provided with a small hole 11-2 for drainage at the lowest position. During the flow of the combustion gas, the internal pressure of the heat radiating tube 11-1 is lower than the pressure in the sauna room, so that the combustion gas does not leak from the small hole 11-2 into the sauna room. The slightly low-temperature air near the floor of the sauna room 1 rises with the convection of the air heated by the heat radiating tubes from the vicinity of the gantry 20 as shown by the arrow, and further exchanges with the heat radiating tubes by natural convection. The air that has risen and becomes hot flows out into the sauna room 1, whereby the temperature inside the sauna room 1 is increased.

The uppermost combustion tube 6, heat radiation tube 9 and U bend
Above 6-1 are evaporating dishes 21-1, 21-2 and 21-3, respectively.
Are provided, and a sauna stone 22 is loaded on them. A bather appropriately applies water to the sauna stone 22 to increase the humidity in the sauna room. In this case, water that has not hit the stone is removed from the hot evaporating dishes 21-1, 21-2, and 21.
Since it is received in -3 and evaporates here, water does not splash on the combustion tube.

In the second embodiment shown in FIG.
An upper casing plate 23 having a trapezoidal cross section is provided on the upper part of 15. In the first embodiment, the evaporating dish 21-1 and the like prevent the combustion tube 9, the U-bend 6-1 and the heat-radiating tubes from being splashed with water. The upper portions of the casing plates 15-1 and 15-4 are extended and bent to form a trapezoidal casing 23. With this trapezoidal casing 23,
Water is prevented from splashing on the combustion tube 9 and the like, thereby preventing water from entering each heat radiation tube.

Numeral 1-1 shown in FIG. 8 is a chair for a bather to sit down.
4 is laid inside a safety guard 25 provided below the seat of the chair 1-1, whereby the chair 1-1 is heated. The temperature of the end portion 11-4 of the radiator tube is 100
Since the temperature is about 200 ° C., the chair can be comfortably warmed and the heat of the combustion gas can be used more completely. In this case, since the temperature of the heat radiating tube may be reduced and condensed during the rest, it is desirable to provide a small hole 11B-2 at the lowest part so that the water can be drained.

The configuration of the present invention is not limited to the above-described embodiment. In short, a ventilation cooling pipe is provided coaxially so as to enclose the combustion pipe, and cool air is supplied to a gap between the two to perform combustion. It is sufficient if the pipes can be cooled.For example, the position of the burner and the combustion pipe can be freely changed in design, and the burner can be changed in consideration of the safety when the blower for cooling air blower breaks down. Although it is recommended to be provided in the sauna room, the combustion tube and the ventilation cooling tube may be provided outside the sauna room. In this way, the equipment in the sauna room can be made compact, and the supply of cool air can be further improved. The method is not limited to that of the embodiment. For example, a supply pipe for cool air may be provided so as to pass through the inside of the burner, and in the above-described embodiment, the pipe is heated through the ventilation cooling gap. Air Although it was made to supply to the burner room, it is also recommended to use part or all of the air as combustion air for the burner or to use it for heating the outside of the sauna room, and the present invention relates to all of them. Are included.

[0033]

According to the present invention, since the present invention is constructed as described above, the sauna room can have a completely independent fireproof structure conforming to Japanese fire regulations.
Since the entire combustion tube can be provided in the sauna room, the thermal efficiency is enhanced, and the burner can be stored inside the sauna room, so that the volume and floor area of the machine room can be minimized, and the sauna device can be further improved. Since it can be made compact, a safe and economical sauna apparatus can be provided. Further, in the sauna apparatus according to the present invention, since the ventilation in the sauna room is forcibly performed, there is an effect that safety is further enhanced.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a configuration of a main part of the above-mentioned known Westenberg sauna oven.

FIG. 2 is a cross-sectional view showing a configuration of a main part of a sauna device according to the present invention.

FIG. 3 shows an embodiment of the sauna apparatus shown in FIG. 2;
It is a top view which shows the shape of a radiation pipe, the evaporating dish, and the sauna stone mounted on it.

FIG. 4 is a side view of the device shown in FIG.

FIG. 5 is a sectional view showing an AA section in FIG. 4;

FIG. 6 is a side view showing an upper structure of a heat radiating tube according to a second embodiment different from those shown in FIGS. 3 and 4.

FIG. 7 is a partially enlarged cross-sectional view near the through hole shown in FIG. 3;

FIG. 8 is an explanatory diagram showing an example of an arrangement of a chair where a bather sits and a radiator tube in these embodiments.

[Explanation of symbols]

 1, 101 sauna room 2, 102 machine room 3, 103 partition 4, 104 through hole 6, 106 combustion tube 8, 108 burner 11, 11-2, 11-3 heat radiation tube 14 suction blower 16 burner mounting plate 17 cooling tube 17-1 Ventilation tube 18 Blower for ventilation 21-1 Evaporating dish 22 Sauna stone

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) F23D 14/12 F23D 14/12 A 14/78 14/78 B F term (reference) 3K017 BA01 BA10 BB06 BB07 BB08 BB10 BE13 DF04 DF07 3K091 AA17 BB25 CC22 EA04 EA29 4C094 AA01 BA18 BA25 CC15 DD02 DD08 DD34 EE02 EE09 EE12 GG04 GG11 GG13

Claims (6)

[Claims] A combustion tube (6) connected to a burner (8B).
In the sauna device configured to supply the combustion gas generated in B) to the heat radiation tube (10A) provided in the sauna room (1B) and increase the temperature in the sauna room (1B), the burner (8B) A ventilation cooling pipe (17) is provided coaxially outside the connected combustion pipe (6B) via a ventilation gap, and the ventilation gap is closed on the burner (8B) side, and outside air is supplied into the ventilation gap. The above-mentioned sauna device provided with a device for obtaining. 2. A burner mounting hole (4B) having an inner diameter larger than the outer diameter of the burner (8B) is provided on the side wall of the sauna room, and a gap between the inner wall surface of the mounting hole (4B) and the burner is closed. Through the mounting plate (16) obtained, the burner (8
2. The sauna device according to claim 1, wherein B) is mounted in the burner mounting hole (4B). 3. A device for supplying outside air into the ventilation gap includes a forced air blower (18) provided in the machine room (2B), an air blow port of the forced air blower (18), and a ventilation cooling pipe (17). 3. The sauna device according to claim 1, comprising a blower pipe (17-1) communicating with the burner side end. 4. The sauna device according to claim 1, wherein the high-temperature air supplied into the ventilation gap is discharged into the sauna room (1B). 5. The sauna apparatus according to claim 1, wherein at least a part of the high-temperature air supplied into the ventilation gap is used as a part of combustion air of the burner. 6. The sauna apparatus according to claim 1, wherein an evaporating dish is provided above the heat radiation tube (10A) with an appropriate gap therebetween.