JP2005006817A

JP2005006817A - Oxygen enriching hot water supply apparatus

Info

Publication number: JP2005006817A
Application number: JP2003173192A
Authority: JP
Inventors: Norio Sugawara; 範夫菅原; Hirofumi Kawashima; 裕文河島; Masamitsu Kondo; 正満近藤
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2003-06-18
Filing date: 2003-06-18
Publication date: 2005-01-13
Anticipated expiration: 2023-06-18
Also published as: JP4374920B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oxygen enriching hot water supply apparatus capable of being attached at a low cost without adding a special route, reducing a circulation flow rate and supplying a gas such as oxygen for a long period of time. <P>SOLUTION: In a hot water supplier comprising a combustion part 10, a heat exchanger 12, an auxiliary heating circulation circuit 20 for auxiliarily heating bathtub water through the heat exchanger 12 and a pump 18 for circulating the bathtub water, an oxygen enricher 26 for generating the oxygen of a high concentration and a mixing means 27 for mixing the oxygen of the high concentration from the oxygen enricher 26 to the auxiliary heating circulation circuit 20 are provided inside the hot water supplier 9. The oxygen of the high concentration is jetted together with the bathtub water flowing through the auxiliary heating circulation circuit 20 from an auxiliary heating adapter 22 provided on a bathtub 21. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、追焚き循環回路を有する給湯機の追焚き配管を利用して、浴槽内の浴水中に酸素を供給する機能を有する給湯装置に関するものである。
【０００２】
【従来の技術】
従来この種の酸素供給装置は、微細気泡発生装置やジェット噴射装置を取り付け、この各装置を介して浴槽水を循環させる泡風呂やジェットバス等の浴槽水を循環させる管路に気体を供給する供給部を設け、この供給部に酸素富化空気を供給するための酸素富化装置を設けたものである（例えば、特許文献１参照）。
【０００３】
図４は、上記公報に記載された従来の浴槽内への酸素供給装置を示すものである。図において、１は浴槽、２は管路、３は供給部、４は吸入口、５は吐出口、７は酸素富化装置、８はポンプである。
【０００４】
【特許文献１】
特開平４−２３４７号公報
【０００５】
【発明が解決しようとする課題】
しかしながら上記従来の構成では、微細気泡発生装置やジェット噴射装置を取り付けた風呂装置において、泡風呂配管やジェットバス配管の管路の途中に酸素供給部を設け、この供給部に酸素富化空気を供給するものであるため、酸素を浴槽に供給するためには、微細気泡発生装置やジェット噴射装置を取り付け、専用の風呂システムを有することが必要であり、一般家庭で簡単に設置できるものではなかった。また、ジェットバスシステムでは流量が大きいため、電気代や騒音等の関連で長時間使用することが難しく、十分な酸素を供給することもできないという課題を有していた。
【０００６】
本発明は上記従来の課題を解決するもので、殆どの家庭で設置している追い焚き機能付き給湯機の追い焚き循環回路を用いて、酸素富化装置からの高濃度の酸素等の気体を混入させ、浴槽内に設置した追い焚き循環水を吐出する追焚きアダプタより噴出させる構成とすることで、特別な経路を付加することなく、安価に取り付け可能な、かつ循環流量も少なく、長時間の酸素等の気体の供給が可能な装置を提供することを目的とする。
【０００７】
【発明を解決するための手段】
上記目的を達成するため本発明の酸素富化給湯装置は、燃焼部と、熱交換器と、前記熱交換器を介して浴槽水の追い焚きを行う追焚き循環回路と、浴槽水を循環するポンプとを備えた給湯機において、前記給湯機内に高濃度の酸素を発生する酸素富化装置と、前記酸素富化装置からの高濃度の酸素を追い焚き循環回路に混入させる混入手段を設け、浴槽に設けた追い焚きアダプタより追い焚き循環回路を流れる浴槽水と共に高濃度の酸素を噴出させる構成としてある。
【０００８】
上記発明によれば、風呂用の給湯機における標準的な機能である追焚き装置を利用し、給湯機内に設置した酸素富化装置と混入手段により、追焚き循環回路の浴槽水に高濃度の酸素等の気体を混入させるようにしているため、特別な経路を付加することなく、酸素富化装置等を追加するだけでよく、構成の簡素化が図れるとともに、簡単に浴槽水中に高濃度の酸素等の気体を混入させることができ、浴室内の酸素濃度を適正な値に確保することが可能となる。
【０００９】
【発明の実施の形態】
請求項１記載の発明は、燃焼部と、熱交換器と、前記熱交換器を介して浴槽水の追い焚きを行う追焚き循環回路と、浴槽水を循環するポンプとを備えた給湯機において、前記給湯機内に高濃度の酸素を発生する酸素富化装置と、前記酸素富化装置からの高濃度の酸素を追い焚き循環回路に混入させる混入手段を設け、浴槽に設けた追い焚きアダプタより追い焚き循環回路を流れる浴槽水と共に高濃度の酸素を噴出させる構成としたことを特徴とするものであり、混入手段によって酸素富化装置からの高濃度の酸素は追焚き配管の中の湯または水に混入され、この酸素が混入された湯または水が浴槽に取りつけた追焚きアダプタから噴出するときに、高濃度の酸素が気泡となって浴槽水の中を通過し、その後、浴室内に充満するようになる。この結果、入浴中の人が高濃度の酸素を吸いながら湯につかることで、温浴効果を促進したり、居眠りを防止したりできる。また、浴槽水の中に酸素が溶け込むことにより雑菌の発生を押さえ、ぬめりや臭いを減少させる効果も期待できる。そして、この構成であれば、給湯機が持つ追い焚き回路を利用するため、酸素富化装置を含む気体混入装置をケーシングの中に納めることができ、余分なスペースも不要であると共に、安価に製作でき、一般の家庭への設置も可能である。
【００１０】
請求項２記載の発明は、酸素富化装置作動中に燃焼用空気とは別に新鮮空気を前記酸素富化装置に供給する空気供給手段を設けたことを特徴とするものであり、常に新鮮な空気が酸素富化膜に供給されることで、常に高濃度の酸素を得ることが可能となる。
【００１１】
請求項３記載の発明は、空気供給手段として、給湯機の本体ケースに燃焼用空気吸込口とは別にガラリを設け、このガラリから吸い込んだ空気を酸素富化装置に供給する送風機で構成したことを特徴とするものであり、ケース外部からの新鮮空気を常に一定の強さで供給することが可能となり、高濃度の酸素を安定して得ることが可能となる。
【００１２】
請求項４に記載の発明は、空気供給手段として、酸素富化装置が設置された近傍の給湯機の本体ケースにガラリを設け、このガラリより吸い込まれた空気が直接酸素富化装置に供給される構成としたことを特徴とするものであり、給湯機の燃焼ファンの吸込み圧力を利用して、酸素富化膜用に開口したガラリから空気を吸込ませ、その空気で酸素富化膜の新鮮空気とするものである。これにより、酸素富化膜専用のファンが不要となり、より簡単な構成にすることが可能となる。
【００１３】
請求項５に記載の発明は、混入手段として、給湯機内の追い焚き循環回路に絞り部を設け、この絞り部により生ずる負圧によって高濃度の酸素を混入させる構成としたことを特徴とするものであり、混入手段の構成として可動部が不要なため、非常に簡単な構成にすることが可能となる。
【００１４】
請求項６に記載の発明は、酸素富化装置を、加圧または減圧手段により薄い膜の間に空気を通過させることによって酸素濃度を高める構成としたもので、簡単な構成で安定した性能を得られるものである。
【００１５】
請求項７に記載の発明は、酸素富化装置の減圧手段として用いられる真空ポンプを薄い膜の下流側に配置した構成にしたもので、酸素富化装置の薄い膜がフィルターの役目をし、真空ポンプにごみが詰まる恐れが無くなるものである。
【００１６】
請求項８に記載の発明は、混入手段として、加圧または減圧手段の圧力を利用して、追い焚き循環回路に高濃度の酸素を混入させる構成としたもので、空気の吸込み量は減少するが、絞りを設ける必要がないので流量の減少を防げるものである。
【００１７】
請求項９に記載の発明は、加圧または減圧手段の代りに、追い焚き循環回路に絞り部を設け、これにより生ずる負圧によって薄い膜の間に空気を通過させる構成にしたもので、空気の吸込み量は減少するが、構造が簡単になるものである。
【００１８】
請求項１０に記載の発明は、酸素富化装置の作動時は燃焼用ファンの吸込み空気量を増加させるシーケンスを組み込んだ構成にしたもので、酸素富化膜で減少した酸素の分を燃焼空気の吸込み量を増加させることで補うものである。
【００１９】
【実施例】
以下、本発明の一実施例について図面に基づき説明する。
【００２０】
（実施例１）
図１は、本発明の実施例１における酸素富化給湯装置の全体構成図を示すものである。９は給湯機本体である。１０は熱交換器１２を加熱するバーナ、１１はバーナ１２に燃焼空気を送るバーナファン、１３は燃焼ガスの排気口、１４は給湯回路で、給湯入口１５から入った水が熱交換器１２で加熱されて給湯出口１６を経由してカラン１７等から吐出される。１８は追焚き循環回路２０に設けられた風呂ポンプで、前記追焚き循環回路２０の循環水はパイプ１９を通り熱交換器１２で加熱された後、前記追焚き循環回路２０に設けた混入手段２７で酸素富化空気が混入される。この場合、混入手段２７としてエゼクタのような循環水に対する絞りを設けて空気を引っ張る構成を用いることで、流れに負圧を発生させて酸素富化空気を混入させれば多量の空気を入れることができ、効果が大きい。また、この場合、混入させるのは酸素富化空気のみではなく、通常の空気でも効果はある。ここで、加熱された後の循環水に酸素富化空気を混入する構成とした点に特徴があり、加熱される以前に混入すると、熱交換器１２を通過中に異常音が発生したり、熱交換器１２の腐食を促進したりする恐れがあるからである。
【００２１】
２１は浴槽で２２は通常の追い焚き動作時に循環される浴槽水を吐出する追焚きアダプタである。２３は酸素富化膜、２４は空気を減圧して酸素富化膜の間に空気を通し、高酸素濃度の空気を得るための真空ポンプ、２５は酸素富化膜に新鮮空気を送るための送風ファンであり、この酸素富化膜２３、真空ポンプ２４、送風ファン２５で酸素富化装置２６を構成している。そして、前記酸素富化装置２６を給湯機本体９に内蔵し、かつ、前記混入手段２７も給湯機本体９内の追焚き循環回路２０に接続して酸素富化給湯装置を構成しいる。また、真空ポンプ２４は酸素富化膜２３の下流側に配置されているので、酸素富化装置２６の薄い膜がフィルターの役目をし、真空ポンプ２４にごみが詰まる恐れが無く真空ポンプ用のフィルターは不要である。
【００２２】
以上のように構成された酸素富化給湯装置について、動作・作用を説明する。混入手段２７によって酸素富化装置２６からの高濃度の酸素は追焚き回路２０の中の湯または水に混入され、この酸素が混入された湯または水が浴槽２１に取り付けた追焚きアダプタ２２から噴出するときに、高濃度の酸素が気泡２８となって浴槽水の中を通過し、その後、浴室内に充満するようになる。この結果、入浴中の人が高濃度の酸素を吸いながら湯につかることで、温浴効果を促進したり、居眠りを防止したりできる。また、浴槽水の中に酸素が溶け込むことにより雑菌の発生を押さえ、ぬめりや臭いを減少させる効果も期待できる。そして、この構成であれば、給湯機が持つ追い焚き回路を利用するため、酸素富化装置２６を含む気体混入装置をケーシング９の中に納まるので余分なスペースも不用であると共に、安価に作成も可能であるため、一般の家庭への設置も可能である。
【００２３】
また、図２に示すように、空気供給手段として、給湯機本体ケース９に燃焼用空気を吸込むためのガラリ２９とは別に、ガラリ３０を設け、前記ガラリ３０より吸い込まれた空気が前記酸素富化膜２３に供給される構成としたもので、給湯機の燃焼ファン１１の吸込み圧力を利用して、酸素富化膜２３用に開口したガラリ３０から空気を吸込ませ、その空気で酸素富化膜２３の新鮮空気とするものである。これにより、酸素富化膜専用のファンが不要となり、より簡単な構成にすることが可能となる。
【００２４】
また、追い焚き循環回路２０に高濃度の酸素等の気体を混入させる混入手段２７の構成として、エゼクタの絞り部により生ずる負圧を利用して、酸素富化膜２３から高濃度の酸素を混入させる構成とすることで、混入空気の量は減少するが、真空ポンプ２４が不要となり、可動部が不要なため非常に簡単な構成にすることが可能となる。
【００２５】
また、図３に酸素富化膜２３の一例を示す。フレーム３１の表面に薄い膜３２を貼りつけ、新鮮空気３３を、加圧または減圧手段により薄い膜３２の間を通過させることによって酸素濃度を高めた空気３４として取り出す構成としたもので、これにより簡単な構成で安定した性能を得られるものである。３５は酸素を取りだした後の、残った空気であり、これを大気中に放出する。
【００２６】
また、酸素富化装置２６の作動時は、燃焼用ファン１１の吸込み空気量を増加させるシーケンスを組み込むことにより、酸素富化膜２３で減少した酸素の分を燃焼空気の吸込み量を増加させることで補うことができるようになる。
【００２７】
【発明の効果】
以上のように本発明によれば、追い焚き機能付き給湯機の追い焚き循環回路を用いて、給湯機本体内に設置した酸素富化装置からの高濃度の酸素等の気体を混入させ、浴槽内に設置した追い焚き循環水を吐出する追焚きアダプタより噴出させる構成とすることで、特別な経路を付加することなく、安価に取り付け可能となり、給湯機のケーシングの中に納め、コンパクト化が図れるとともに、安価に作成ができるため、一般の家庭への設置も可能となる。
【００２８】
また、入浴中の人が高濃度の酸素を吸いながら湯につかることで、温浴効果を促進したり、居眠りを防止したりすることが可能となる。また、酸素以外の気体や空気であっても、気泡が破裂するときの超音波の発生等により洗浄効果等が期待されるものである。
【図面の簡単な説明】
【図１】本発明の１実施例における酸素富化給湯装置の全体構成図
【図２】本発明の１実施例における酸素富化給湯装置の外観図
【図３】本発明の１実施例における酸素富化給湯装置の富化膜部分の断面図
【図４】従来の酸素供給装置の全体構成図
【符号の説明】
９給湯機本体
１０バーナ（燃焼部）
１２熱交換器
１８ポンプ
２０追焚き循環回路
２１浴槽
２２追焚きアダプタ
２６酸素富化装置
２７混入手段[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hot water supply apparatus having a function of supplying oxygen into bath water in a bathtub using a reheating pipe of a water heater having a recirculation circuit.
[0002]
[Prior art]
Conventionally, this type of oxygen supply device is equipped with a fine bubble generator or jet injection device, and supplies gas to a pipeline for circulating bath water such as a bubble bath or jet bath that circulates bath water through these devices. A supply unit is provided, and an oxygen enricher for supplying oxygen-enriched air to the supply unit is provided (see, for example, Patent Document 1).
[0003]
FIG. 4 shows an oxygen supply apparatus for a conventional bathtub described in the above publication. In the figure, 1 is a bathtub, 2 is a conduit, 3 is a supply section, 4 is a suction port, 5 is a discharge port, 7 is an oxygen enrichment device, and 8 is a pump.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 4-2347
[Problems to be solved by the invention]
However, in the conventional configuration described above, in a bath apparatus equipped with a fine bubble generator and a jet spray device, an oxygen supply unit is provided in the middle of the bubble bath pipe or jet bath pipe, and oxygen-enriched air is supplied to the supply unit. In order to supply oxygen to the bathtub, it is necessary to install a fine bubble generator and jet injection device and have a dedicated bath system, and it cannot be easily installed at home. It was. In addition, since the jet bath system has a large flow rate, it has been difficult to use for a long time in relation to electricity bills, noise, etc., and sufficient oxygen cannot be supplied.
[0006]
The present invention solves the above-described conventional problems, and uses a recirculation circuit of a water heater with a reheating function installed in most households to remove a gas such as high-concentration oxygen from an oxygen enricher. By mixing it and ejecting it from the reheating adapter that discharges the recirculating circulating water installed in the bathtub, it can be installed at low cost without adding a special route, and the circulation flow rate is also small and it is long time. An object of the present invention is to provide an apparatus capable of supplying a gas such as oxygen.
[0007]
[Means for Solving the Invention]
In order to achieve the above object, an oxygen-enriched hot water supply apparatus according to the present invention circulates bathtub water, a combustion section, a heat exchanger, a recirculation circuit for retreating bathtub water through the heat exchanger, and the bathtub water. In the water heater provided with a pump, an oxygen enricher that generates high-concentration oxygen in the water heater, and a mixing means for replenishing high-concentration oxygen from the oxygen enricher into the circulation circuit are provided, High-concentration oxygen is ejected together with bathtub water flowing in the recirculation circuit from a reheating adapter provided in the bathtub.
[0008]
According to the above-described invention, using a reheating device that is a standard function in a hot water heater for baths, the oxygen enrichment device installed in the hot water heater and the mixing means provide a high concentration in the bath water of the reheating circulation circuit. Since gas such as oxygen is mixed, it is only necessary to add an oxygen enrichment device etc. without adding a special route, the structure can be simplified, and high concentration can be easily added to the bath water. Gases such as oxygen can be mixed, and the oxygen concentration in the bathroom can be secured at an appropriate value.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 is a water heater comprising a combustion section, a heat exchanger, a recirculation circuit for retreating bath water through the heat exchanger, and a pump for circulating the bath water. An oxygen-enriching device that generates high-concentration oxygen in the water heater, and a mixing means for replenishing high-concentration oxygen from the oxygen-enriching device into the recirculation circuit, and from a reheating adapter provided in the bathtub The high-concentration oxygen is jetted together with the bathtub water flowing in the recirculation circuit, and the high-concentration oxygen from the oxygen enricher is mixed with hot water in the recirculation pipe or by the mixing means. When hot water or water mixed with water is spouted from the reheating adapter attached to the bathtub, high-concentration oxygen passes through the bathtub water as bubbles, and then enters the bathroom. Become full. As a result, the person taking a bath can use the hot water while sucking high-concentration oxygen, thereby promoting the warm bath effect and preventing a nap. In addition, it can be expected that oxygen dissolves in the bath water to suppress generation of germs and reduce sliminess and odor. And if it is this structure, in order to use the reheating circuit which a water heater has, the gas mixing apparatus containing an oxygen enrichment apparatus can be stored in a casing, and an extra space is unnecessary, and it is cheap. It can be manufactured and installed in a general household.
[0010]
The invention according to claim 2 is characterized in that air supply means for supplying fresh air to the oxygen enrichment apparatus separately from combustion air during operation of the oxygen enrichment apparatus is provided. By supplying air to the oxygen-enriched film, it is possible to always obtain a high concentration of oxygen.
[0011]
The invention described in claim 3 is configured as a blower for supplying air to the oxygen enricher as air supply means by providing a louver separately from the combustion air suction port in the main body case of the water heater. The fresh air from the outside of the case can be always supplied with a constant strength, and high-concentration oxygen can be stably obtained.
[0012]
In the invention according to claim 4, as the air supply means, a louver is provided in the main body case of the water heater in the vicinity where the oxygen enrichment apparatus is installed, and the air sucked from this gallery is directly supplied to the oxygen enrichment apparatus. Using the suction pressure of the combustion fan of the hot water heater, air is sucked from the gallery opened for the oxygen-enriched membrane, and the air is used to freshen the oxygen-enriched membrane. Air. This eliminates the need for a dedicated fan for the oxygen-enriched film and allows a simpler configuration.
[0013]
The invention described in claim 5 is characterized in that, as the mixing means, a throttle portion is provided in the recirculation circuit in the hot water heater, and high concentration oxygen is mixed by the negative pressure generated by the throttle portion. And since a movable part is unnecessary as a structure of a mixing means, it becomes possible to set it as a very simple structure.
[0014]
The invention according to claim 6 is a configuration in which the oxygen enrichment device is configured to increase the oxygen concentration by allowing air to pass between thin films by pressurization or decompression means, and stable performance is achieved with a simple configuration. It is obtained.
[0015]
The invention according to claim 7 is a configuration in which a vacuum pump used as a decompression unit of the oxygen enrichment device is arranged on the downstream side of the thin membrane, and the thin membrane of the oxygen enrichment device serves as a filter, There is no risk of clogging up the vacuum pump.
[0016]
The invention according to claim 8 is configured such that high concentration oxygen is mixed into the recirculation circuit using the pressure of the pressurizing or depressurizing means as the mixing means, and the amount of air sucked is reduced. However, since it is not necessary to provide a restriction, the flow rate can be prevented from decreasing.
[0017]
According to the ninth aspect of the present invention, instead of the pressurizing or depressurizing means, a recirculation circuit is provided with a throttle portion, and air is passed between thin films by the negative pressure generated thereby. Although the amount of sucked in is reduced, the structure is simplified.
[0018]
The invention according to claim 10 is configured to incorporate a sequence for increasing the amount of intake air of the combustion fan during operation of the oxygen enrichment device, and the amount of oxygen reduced by the oxygen enrichment film is reduced to the combustion air. This is compensated by increasing the amount of suction.
[0019]
【Example】
An embodiment of the present invention will be described below with reference to the drawings.
[0020]
(Example 1)
FIG. 1 is an overall configuration diagram of an oxygen-enriched hot water supply apparatus according to Embodiment 1 of the present invention. 9 is a water heater main body. 10 is a burner for heating the heat exchanger 12, 11 is a burner fan for sending combustion air to the burner 12, 13 is an exhaust port for combustion gas, 14 is a hot water supply circuit, and water entered from the hot water inlet 15 is the heat exchanger 12. It is heated and discharged from the currant 17 or the like via the hot water supply outlet 16. 18 is a bath pump provided in the recirculation circuit 20, and the circulating water in the recirculation circuit 20 is heated by the heat exchanger 12 through the pipe 19 and then mixed in the recirculation circuit 20. At 27, oxygen-enriched air is mixed. In this case, by using a structure that pulls air by providing a throttle for circulating water, such as an ejector, as the mixing means 27, a large amount of air is introduced if a negative pressure is generated in the flow and oxygen-enriched air is mixed. Can be effective. In this case, not only oxygen-enriched air but also normal air is effective. Here, it is characterized in that oxygen-enriched air is mixed into the circulating water after being heated, and if mixed before being heated, abnormal noise occurs while passing through the heat exchanger 12, This is because corrosion of the heat exchanger 12 may be accelerated.
[0021]
Reference numeral 21 denotes a bathtub, and reference numeral 22 denotes a reheating adapter that discharges bathtub water circulated during a normal reheating operation. 23 is an oxygen-enriched membrane, 24 is a vacuum pump for depressurizing air and passing air between the oxygen-enriched membranes to obtain high oxygen concentration air, and 25 is for sending fresh air to the oxygen-enriched membrane It is a blower fan, and this oxygen-enriched film 23, vacuum pump 24, and blower fan 25 constitute an oxygen enrichment device 26. The oxygen enricher 26 is built in the water heater body 9 and the mixing means 27 is connected to the recirculation circuit 20 in the water heater body 9 to constitute an oxygen enriched water heater. In addition, since the vacuum pump 24 is disposed downstream of the oxygen-enriched film 23, the thin film of the oxygen-enriching device 26 serves as a filter, and there is no risk of the vacuum pump 24 becoming clogged with dust. No filter is required.
[0022]
The operation and action of the oxygen-enriched hot water supply apparatus configured as described above will be described. The mixing means 27 mixes high-concentration oxygen from the oxygen enricher 26 into hot water or water in the reheating circuit 20, and the hot water or water mixed with oxygen from the reheating adapter 22 attached to the bathtub 21. When jetting, high-concentration oxygen becomes bubbles 28 and passes through the bath water, and then fills the bathroom. As a result, the person taking a bath can use the hot water while sucking high-concentration oxygen, thereby promoting the warm bath effect and preventing a nap. In addition, it can be expected that oxygen dissolves in the bath water to suppress generation of germs and reduce sliminess and odor. And if it is this structure, in order to utilize the reheating circuit which a water heater has, since the gas mixing apparatus containing the oxygen enrichment apparatus 26 is stored in the casing 9, an extra space is unnecessary and it makes it cheaply. Therefore, it can be installed in a general household.
[0023]
Further, as shown in FIG. 2, as an air supply means, a louver 30 is provided separately from the louver 29 for sucking combustion air into the water heater body case 9, and the air sucked from the louver 30 is the oxygen-rich material. It is configured to be supplied to the chemical film 23, and air is sucked from the gallery 30 opened for the oxygen-enriched film 23 using the suction pressure of the combustion fan 11 of the hot water heater, and the air is enriched with oxygen. The fresh air of the film 23 is used. This eliminates the need for a dedicated fan for the oxygen-enriched film and allows a simpler configuration.
[0024]
Further, as a configuration of the mixing means 27 for mixing a gas such as high-concentration oxygen into the recirculation circuit 20, high-concentration oxygen is mixed from the oxygen-enriched film 23 using the negative pressure generated by the restrictor of the ejector. By adopting the configuration, the amount of mixed air is reduced, but the vacuum pump 24 is not required and a movable part is not required, so that a very simple configuration can be achieved.
[0025]
FIG. 3 shows an example of the oxygen enriched film 23. A thin film 32 is attached to the surface of the frame 31, and fresh air 33 is taken out as air 34 with an increased oxygen concentration by passing between the thin films 32 by pressurization or decompression means. Stable performance can be obtained with a simple configuration. Reference numeral 35 denotes air remaining after the oxygen is taken out, which is released into the atmosphere.
[0026]
Further, when the oxygen enrichment device 26 is operated, a sequence for increasing the intake air amount of the combustion fan 11 is incorporated, thereby increasing the intake amount of the combustion air by the amount of oxygen reduced by the oxygen enrichment film 23. You can make up for it.
[0027]
【The invention's effect】
As described above, according to the present invention, by using the recirculation circuit of the water heater with a reheating function, gas such as high concentration oxygen from the oxygen enricher installed in the water heater body is mixed, and the bathtub It is possible to install it at a low cost without adding a special route, and it can be installed in the casing of the water heater, making it compact. In addition, it can be created at low cost, so it can be installed in ordinary households.
[0028]
In addition, it is possible for a person taking a bath to use hot water while sucking high-concentration oxygen, thereby promoting a warm bath effect or preventing a nap. Moreover, even if it is gas other than oxygen and air, the washing | cleaning effect etc. are anticipated by generation | occurrence | production of the ultrasonic wave etc. when a bubble bursts.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram of an oxygen-enriched hot water supply apparatus according to one embodiment of the present invention. FIG. 2 is an external view of an oxygen-enriched hot water supply apparatus according to one embodiment of the present invention. FIG. 4 is a cross-sectional view of an enriched film portion of an oxygen-enriched hot water supply apparatus. FIG. 4 is an overall configuration diagram of a conventional oxygen supply apparatus.
9 Hot water heater body 10 Burner (combustion section)
12 Heat exchanger 18 Pump 20 Recirculation circuit 21 Bath 22 Reheating adapter 26 Oxygen enrichment device 27 Mixing means

Claims

In a water heater comprising a combustion section, a heat exchanger, a recirculation circuit that replenishes bathtub water through the heat exchanger, and a pump that circulates the bath water, a high concentration is provided in the water heater. Bath water that flows through the recirculation circuit from the reheating adapter provided in the recirculation circuit provided with an oxygen enrichment device that generates oxygen and mixing means for mixing high concentration oxygen from the oxygen enrichment device into the recirculation circuit In addition, an oxygen-enriched hot water supply device configured to eject high-concentration oxygen.

The oxygen-enriched hot water supply apparatus according to claim 1, further comprising air supply means for supplying fresh air to the oxygen-enriched apparatus separately from combustion air during operation of the oxygen-enriched apparatus.

3. The oxygen-enriched hot water supply according to claim 2, wherein the air supply means comprises a blower provided in the main body case of the water heater separately from the combustion air suction port, and a blower for supplying the air sucked from the louver to the oxygen enricher. apparatus.

The air supply means according to claim 2, wherein a louver is provided in a body case of a water heater in the vicinity where the oxygen enrichment device is installed, and the air sucked from the garage is directly supplied to the oxygen enrichment device. Oxygen-enriched water heater.

2. The oxygen-enriched hot water supply apparatus according to claim 1, wherein as the mixing means, a throttle portion is provided in a recirculation circuit in the hot water supply device, and high concentration oxygen is mixed by a negative pressure generated by the throttle portion.

The oxygen-enriched hot water supply apparatus according to claim 1, wherein the oxygen enrichment apparatus is configured to increase the oxygen concentration by allowing air to pass between thin films by pressurization or decompression means.

The oxygen enrichment apparatus according to claim 6, wherein the oxygen enrichment device is configured to increase the oxygen concentration by allowing air to pass between the thin films by the decompression means, and a vacuum pump used as the decompression means is disposed downstream of the thin film. Chemical water heater.

The oxygen-enriched hot water supply apparatus according to claim 1, wherein high-concentration oxygen is mixed in the recirculation circuit using the pressure of the pressurization or decompression means as the mixing means.

The oxygen-enriched hot water supply apparatus according to claim 6, wherein instead of the pressurizing or depressurizing means, a constriction is provided in the recirculation circuit, and air is passed between the thin films by the negative pressure generated thereby.

The oxygen-enriched hot water supply apparatus according to claim 1, wherein the intake air amount of the combustion fan is increased during operation of the oxygen enrichment apparatus.