Steam-generating stove

Abstract

To provide a steam-generating stove that is resistant to deterioration caused by water. [Solution] The sauna is equipped with a sauna generating unit 20 made of a heat-storage block body that has heat resistance, thermal shock resistance, and heat storage properties, so as to close the opening 9 at the top end of the housing 2. The sauna generating unit 20 consists of a lower first heat-storage block body 21 and an upper second heat-storage block body 22. The first heat-storage block body 21 is equipped with first and second hollow insertion parts that loosely insert the upper parts of the first and second electric heater parts, a front opening, a rear opening, and a water storage section. The upper second heat-storage block body 21 is equipped with a water receiving section 35 and a water draining section 36 provided in the water receiving section 35 to drain water into the water storage section below, and covers the first hollow insertion part 25, the front opening 27, the water storage section, the second hollow insertion part, and the rear opening.

Description

Technical Field

[0001] The present invention relates to a steam generating stove, and particularly to a steam generating stove that generates steam using an electric heater.

Background Art

[0002] Conventional electric heater type steam generating stoves heat a large number of sauna stones stacked on the upper part of the stove by an electric heater part and evaporate the water applied to the sauna stones to scatter steam called rowryu. However, in conventional steam generating stoves, every time water is applied to the heated sauna stones, they thermally contract, and eventually crack and break, so they had to be replaced from time to time. Also, there was a problem that water was likely to be applied to the electric heater part and deteriorate.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The present invention has been made in view of the above-described conventional problems, and an object thereof is to provide a steam generating stove that is less likely to deteriorate due to water.

Means for Solving the Problems

[0005] The invention according to claim 1 is A steam generating stove including a housing having an opening at an upper end, and two first and second electric heater parts provided vertically inside along the front wall part and the rear wall part of the housing, and having upper ends protruding upward from the upper end opening of the housing. It includes a heat storage member having heat resistance, thermal shock resistance, and heat storage properties, and a rowryu generation part supported by the upper end opening of the housing. This area where the löyly (sauna steam) is generated is The first and second hollow insertion parts loosely insert into the upper parts of the first and second electric heater sections, A front opening that communicates with the upper part of the first hollow insertion section, A rear opening that communicates with the upper part of the second hollow insertion section, A water receiving section is provided on the top surface, Having It is characterized by the following. The invention described in claim 2 is, At the bottom of the water receiving section of the löyly generation area, a water drop section is provided so that the water placed in the water receiving section enters the interior of the löyly generation area. The water outlet section is designed so as not to communicate with the first and second hollow insertion sections, the front opening, or the rear opening. It is characterized by the following. In the invention described in claim 3, The water drop-off point is formed at the lowest point of the bottom of the water receiving section. It is characterized by the following. In the invention described in claim 4, The water outlet section was formed by holes or slits. It is characterized by the following. In the invention described in claim 5, A platform-like section is provided on the upper surface of the section where the löyly is generated, adjacent to the waterfall section. It is characterized by the following. In the invention described in claim 6, A water reservoir was installed inside the sauna's sauna area to collect the water that falls into the waterfall section. It is characterized by the following. The invention described in claim 7 is, The enclosure has multiple walls, The sauna's steam generation area is equipped with a weir that allows water accumulated in the reservoir to fall between the multiple walls of the casing. It is characterized by 。 [Effects of the Invention]

[0006] According to the steam generating stove of the present invention, instead of sauna stones, a löyly generating section made of a heat-storage material having heat resistance, thermal shock resistance, and heat storage properties can be used to heat water placed in a water receiving section to generate löyly, and the löyly generating section is less likely to deteriorate due to water. In addition, since the löyly generating section covers the first and second electric heater sections, making it less likely for water to come into contact with them, the first and second electric heater sections are also less likely to deteriorate. Furthermore, according to another invention, a water drop section is provided at the bottom of the water receiving section, allowing some of the water placed in the water receiving section to enter the interior of the löyly generating section. This promotes the vaporization of the water by the heat from the inner wall of the water drop section. Furthermore, according to another invention, any water that does not evaporate from the water receiving section is stored in the water storage section via the water drain section, thus reducing the likelihood of water coming into contact with the first and second electric heater sections and suppressing their deterioration. Furthermore, according to another invention, a platform-like section provided adjacent to the waterfall section allows a large amount of heat to be transferred to the water as it falls, either by approaching the waterfall section or by entering the waterfall section. This further promotes vaporization and generates a large amount of löyly. Furthermore, according to another invention, by allowing the water accumulated in the water reservoir to drain between the multiple walls of the housing, it is possible to reliably prevent water from splashing onto the first and second electric heaters even if too much water is put into the water receiving section. [Brief explanation of the drawing]

[0007] [Figure 1] This is an overall perspective view of a steam generating stove according to one embodiment of the present invention. [Figure 2] This is a plan view of a steam-generating stove. [Figure 3] This is a front view of the top of a steam-generating stove, with a portion of it broken off. [Figure 4] This is a rear view of Figure 3. [Figure 5] This is a left side view of Figure 3. [Figure 6] This is a right side view of Figure 3. [Figure 7] This is a plan view of the first heat storage member in Figure 3. [Figure 8] It is a front view of FIG. 7. [Figure 9] It is a left side view of FIG. 7. [Figure 10] It is a plan view of the second heat storage member in FIG. 3. [Figure 11] It is a front view of FIG. 10. [Figure 12] It is a left side view of FIG. 10. [Figure 13] It is a partially broken and omitted sectional view taken along line A-A of FIG. 2. [Figure 14] It is a partially broken and omitted sectional view taken along line B-B of FIG. 2. [Figure 15] It is a partially broken and omitted sectional view taken along line C-C of FIG. 2. [Figure 16] It is an operation explanatory view of FIG. 1. [Figure 17] It is an operation explanatory view of FIG. 1.

Embodiments for Carrying Out the Invention

[0008] Hereinafter, preferred embodiments of the present invention will be described using examples.

Examples

[0009] A steam generation stove according to an embodiment of the present invention will be described with reference to FIGS. 1 to 15. FIG. 1 is an overall external perspective view of the steam generation stove, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a front view of a partially broken upper part of the steam generation stove, FIGS. 4 to 6 are a rear view, a left side view, and a right side view of FIG. 3, FIGS. 7 to 9 are a plan view, a front view, and a left side view of the first heat storage member in FIG. 3, FIGS. 10 to 12 are a plan view, a front view, and a left side view of the second heat storage member in FIG. 3, FIG. 13 is a partially broken and omitted sectional view taken along line A-A of FIG. 2, FIG. 14 is a partially broken and omitted sectional view taken along line B-B of FIG. 2, and FIG. 15 is a partially broken and omitted sectional view taken along line C-C of FIG. 2.

[0010] In these diagrams, 1 is an electric heater-type steam generating stove used in saunas, etc., which can generate steam called löyly. Of the steam generating stove 1, 2 is a rectangular prism-shaped housing with open top and bottom ends, and the front wall 3, rear wall 4, left wall 5, and right wall 6 are formed by triple multi-walls. 7 is a base on which the electrical unit (not shown) is installed and supports the housing 2. An operating unit 8 is provided on the front of the base 7. 9 is the upper end opening of the housing 2, 10 and 11 are two first and second electric heater units fixed vertically to the inside along the front wall 3 and rear wall 4 of the housing 2, with their upper ends protruding above the upper end opening 9 of the housing 2, and 20 is a löyly generating unit supported by the upper end opening 9 of the housing 2, which is heated to a high temperature by the first and second electric heater units 10 and 11, and evaporates water poured from above to generate steam called löyly. The löyly generating section 20 is sized to cover the inside of the upper end opening 9 of the housing 2.

[0011] The löyly generating section 20 is made of a heat storage member (a block-shaped heat storage body, in this case a heat storage block body divided into upper and lower sections) that is made of a metal such as aluminum, aluminum alloy, iron, steel, stainless steel, copper, or titanium, or a non-metal such as fine ceramic, engineering ceramic, or sintered ceramic, and possesses heat resistance, thermal shock resistance, heat storage capacity, and rigidity against the temperature heated by the first and second electric heater sections 10 and 11 and the water poured from above. Specifically, the löyly generating section 20 consists of a first heat storage block body 21, which serves as the lower first heat storage member supported by the upper end opening 9 of the housing 2, and a second heat storage block body 22, which serves as the upper second heat storage member supported by the first heat storage member 21 by being placed on the first heat storage member 21. The first heat storage block body 21 is sized to close the square opening 9a inside the multi-layered wall of the upper end opening 9 of the housing 2. However, it is sized to be smaller than the square outer circumference of the outer wall of the housing 2. The second heat storage block body 22 is sized to cover the upper surface of the first heat storage block body 21. The first and second heat storage block bodies 21 and 22 are made of metals such as aluminum, aluminum alloy, iron, steel, stainless steel, copper, and titanium, or non-metals such as fine ceramics, engineering ceramics, and sintered ceramics, and are each integrally formed in a block shape by integral molding or the like.

[0012] The first heat storage block 21 is prism-shaped overall and is supported by resting on the upper edge 13 of the innermost rectangular prism-shaped inner wall 12 of the triple wall of the housing 2, thereby closing the opening 9a of the upper end opening 9. The first heat storage block 21 has fitting projections 24 extending in the front left-right and rear left-right directions on its bottom surface that fit inside the upper end of the inner wall 12 of the triple wall of the housing 2, preventing it from shifting out of position. The first heat storage block body 21 includes prismatic first and second hollow insertion parts 25 and 26 that are inserted into the upper parts of the first and second electric heater sections 10 and 11, a front opening 27 that is open to the front and communicates with the upper part of the first hollow insertion part 25, a rear opening 28 that is open to the rear and communicates with the upper part of the second hollow insertion part 26, and a water storage section 29 formed between the first and second hollow insertion parts 25 and 26 at the top of the first heat storage block body 21.

[0013] The first and second hollow insertion sections 25 and 26 are formed by penetrating the first heat storage block body 21 vertically. The first hollow insertion section 25 and the front opening 27 are connected in an L-shape in vertical cross-section, and the second hollow insertion section 26 and the rear opening 28 are connected in an L-shape in vertical cross-section. The first heat storage block body 21 is provided with weir sections 30 and 31 at its left and right ends, respectively, which allow water accumulated in the water storage section 28 to drain between the multiple walls of the left wall section 5 and the multiple walls of the right wall section 6 of the housing 2.

[0014] When viewed in plan, the second heat storage block 22 is substantially the same shape as the first heat storage block 21 and is formed to cover the upper surface of the first heat storage block 21. Specifically, the second heat storage block 22 is formed in the shape of a rectangular plate that covers the front opening 27, the first hollow insertion part 25, the water storage part 29, the second hollow insertion part 26, and the rear opening 28 of the first heat storage block 21.

[0015] The second heat storage block 22 includes a fitting projection 33 fitted into fitting receiving portions 32 provided at the left and right ends between the first and second hollow insertion portions 25 and 26 at the upper end of the first heat storage block 21, a water receiving portion 35 provided on the upper surface 34, and a water drain portion 36 provided at a part of the bottom of the water receiving portion 35 into which water enters the second heat storage block 22. The water drain portion 36 is intended to allow some of the water placed in the water receiving portion 35 to enter the narrow space inside the second heat storage block 22, and to promote the vaporization of the water by a large amount of heat from the inner wall of the water drain portion 36. In this case, the water drain portion 36 is formed by a narrow, horizontally elongated slit. The water drain portion 36 may be composed of multiple slits, or of one or more holes (round holes, square holes, elongated holes, etc.). Alternatively, it may be composed of a combination of one or more slits and one or more holes. The water outlet section 36 is formed here by penetrating the second heat storage block body 22 vertically, and the water outlet section 36 is in communication with the water storage section 29 of the first heat storage block body 21.

[0016] The water drop section 36 is located in the center of the upper surface 34 of the second heat storage member 22, within the bottom 37 of the water receiving section 35. The bottom 37 of the water receiving section 35 slopes gently toward the water drop section 36, with the water drop section 36 being the lowest point. In addition, a rectangular platform-shaped section 38 is provided adjacent to the water drop section 36 on the upper surface 34 of the second heat storage member 22. The platform-shaped section 38 makes it possible to transfer a large amount of heat to the water near the water drop section 36 and to the water entering from the water drop section 36.

[0017] Next, the operation of the above-described embodiment will be explained with reference to Figures 16 and 17. Note that air can flow into the housing 2 through the opening at the bottom end and numerous air holes on the sides. When the first and second electric heater units 10 and 11 are energized and reach a high temperature, the air surrounding the first and second electric heater units 10 and 11 is heated and becomes hot, generating an upward airflow. After air flows into the interior through the lower end opening and numerous air holes on the sides of the housing 2, it is heated by the first electric heater unit 10 and rises, entering the first hollow insertion section 25 of the löyly generation unit 20 and flowing out to the outside through the front opening 27, creating a high-temperature airflow. The second electric heater unit 11 is heated and rises, entering the second hollow insertion section 26 of the löyly generation unit 20 and flowing out to the outside through the rear opening 28 (see arrows D and E in Figure 16). These high-temperature airflows efficiently heat the lower first heat storage block 21 and the upper second heat storage block 22 of the löyly generation unit 20, causing them to reach high temperatures and retain a large amount of heat.

[0018] When the second heat storage block 22 reaches a high temperature, water is poured into the water receiving section 35 (arrow F in Figure 17). The water then receives heat from the high-temperature bottom 37 and evaporates, causing steam called löyly to rise (arrow G in Figure 17). The water that does not evaporate completely on the bottom 37 enters the slits of the water drop section 35 and tries to fall into the water storage section 29 below (arrow H in Figure 17), but as it spreads out to the side, it receives a large amount of heat from the inner wall of the slits, so it easily evaporates and turns into steam, causing steam to rise (arrow I in Figure 17). At this time, the platform section 38 provides a large amount of heat to the water as it approaches the water drop section 36 or enters the water drop section 36 and falls down, so vaporization is promoted and a large amount of löyly is generated.

[0019] In this embodiment, the water drop section 36 is formed so as not to communicate with the first and second hollow insertion sections 25 and 26, the front opening 27, and the rear opening 28 of the first heat storage member 21. Even if water falls from the water drop section 36 (arrow J in Figure 17), it accumulates in the water reservoir 29 provided on the upper surface of the first heat storage block 21, thus preventing water from splashing onto the first and second electric heater sections 10 and 11. Furthermore, if the water level in the water reservoir 29 rises, water falls from the weir sections 30 and 31 between the multi-layered walls of the left wall section 5 and the right wall section 6 of the housing 2 (arrows K and L in Figure 17), thus reliably preventing water from splashing onto the first and second electric heater sections 10 and 11.

[0020] According to this embodiment, instead of sauna stones, a löyly generating unit 20 made of a heat storage block that has heat resistance, thermal shock resistance, and heat storage properties can be used to generate löyly by heating the water placed in the water receiving unit 35, and the löyly generating unit 20 is less likely to deteriorate due to water. In addition, since the löyly generating unit 20 covers the first and second electric heater units 10 and 11 and makes it less likely for water to come into contact with them, the first and second electric heater units 10 and 11 are also less likely to deteriorate. Furthermore, by providing a water drop section 36 at the bottom 37 of the water receiving section 35, some of the water placed in the water receiving section 35 enters the interior of the löyly generating section 20, the large amount of heat from the inner wall of the water drop section 36 promotes the vaporization of the water. Furthermore, any water that does not evaporate from the water receiving section 35 is stored in the water storage section 29 via the water drain section 36. This reduces the likelihood of water coming into contact with the first and second electric heater sections 10 and 11, thereby suppressing deterioration of the first and second electric heater sections 10 and 11. Furthermore, since the water drop section 36 is constructed with slits, the water that falls into the water drop section 36 can be spread out into a long, narrow strip, allowing for efficient evaporation. Furthermore, the platform-shaped section 38, which is provided adjacent to the waterfall section 35, allows a large amount of heat to be transferred to the water that approaches the waterfall section 35 or enters the waterfall section 35 and falls down. This further promotes vaporization and generates a large amount of löyly. Furthermore, by allowing the water accumulated in the water storage section 29 to drain between the multiple walls of the housing 2, it is possible to reliably prevent water from splashing onto the first and second electric heater sections 10 and 11 even if too much water is put into the water receiving section 35. [Industrial applicability]

[0021] This invention can be applied to sauna stoves that generate löyly (steam). [Explanation of Symbols]

[0022] 1. Steam-generating stove 2 cabinets 9 Top opening 10. First Electric Heater Section 11. Second Electric Heater Section 20. Löyly generation area 21. First heat storage block 22. Second heat storage block 25 1st hollow free insertion part 26 2nd hollow free insertion part 27 Front opening 28 Rear opening 29 Water storage section 30, 31 Weir 35 Water receiving section 36 Falling water part 38 Trap

Claims

1. A steam generating stove comprising a housing having an upper opening, and two first and second electric heater sections provided vertically on the inside along the front and rear walls of the housing, with their upper ends protruding upward from the upper opening of the housing, It consists of a heat-storage material that has heat resistance, thermal shock resistance, and heat storage properties, and is equipped with a löyly generating section supported at the upper end opening of the housing. This area where the löyly (sauna steam) is generated is The first and second hollow insertion parts loosely insert into the upper parts of the first and second electric heater sections, A front opening that communicates with the upper part of the first hollow insertion section, A rear opening that communicates with the upper part of the second hollow insertion section, A water receiving section is provided on the top surface, Having A steam-generating stove characterized by [feature].

2. At the bottom of the water receiving section of the löyly generation area, a water drop section is provided so that the water placed in the water receiving section enters the interior of the löyly generation area. The water outlet section is designed so as not to communicate with the first and second hollow insertion sections, the front opening, or the rear opening. A steam generating stove according to claim 1, characterized by the following:

3. The water drop-off point is formed at the lowest point of the bottom of the water receiving section. A steam generating stove according to claim 2, characterized by the following:

4. The water outlet section was formed by holes or slits. A steam generating stove according to claim 2 or 3, characterized by the above.

5. A platform-like section is provided on the upper surface of the section where the löyly is generated, adjacent to the waterfall section. A steam generating stove according to claim 2 or 3, characterized by the above.

6. A water reservoir was installed inside the sauna's sauna area to collect the water that falls into the waterfall section. A steam generating stove according to claim 2 or 3, characterized by the above.

7. The enclosure has multiple walls, The sauna's steam generation area is equipped with a weir that allows water accumulated in the reservoir to fall between the multiple walls of the casing. A steam generating stove according to claim 6, characterized by the following:

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