JP2012217889A - Dissolving apparatus - Google Patents
Dissolving apparatus Download PDFInfo
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- JP2012217889A JP2012217889A JP2011084276A JP2011084276A JP2012217889A JP 2012217889 A JP2012217889 A JP 2012217889A JP 2011084276 A JP2011084276 A JP 2011084276A JP 2011084276 A JP2011084276 A JP 2011084276A JP 2012217889 A JP2012217889 A JP 2012217889A
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- water
- hot water
- reforming
- pouring
- bathtub
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 195
- 238000002407 reforming Methods 0.000 claims description 60
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 abstract description 6
- 238000004090 dissolution Methods 0.000 description 12
- 150000002484 inorganic compounds Chemical class 0.000 description 11
- 229910010272 inorganic material Inorganic materials 0.000 description 11
- 239000002245 particle Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Abstract
Description
本発明は、水改質を目的とした成分を所定量、給湯水に添加する機能を備えた溶解装置に関するものである。 The present invention relates to a dissolving apparatus having a function of adding a predetermined amount of a component for water reforming to hot water.
従来この種の装置は、目的の成分を含む材料を湯水に添加する水改質手段を、湯沸かし部に水道水を供給する給水経路中、または湯沸かし部で沸いた湯を浴槽へ導く注湯経路中に配設し、給湯水中に、所定の目的の水改質成分を添加する方法が公開されている（例えば、特許文献１参照）。 Conventionally, this type of device has a water reforming means for adding a material containing a target component to hot water in a water supply path for supplying tap water to a water heater, or a pouring path for guiding hot water boiled in a water heater to a bathtub. A method of disposing the water-reforming component for a predetermined purpose in hot water is disclosed (for example, see Patent Document 1).
図５は、特許文献１に記載された従来の給湯装置を示すものである。図５に示すように、水経路中に、水改質手段を組み込んで構成されている。本特許文献１において、水改質手段としては、添加成分を電極（亜鉛陽極１）とした電気分解方式を用い、注湯水が水改質手段を通過中に、電極１、２に通電し、電極１の一部を注湯水中に電気分解させることで、所定濃度の水改質成分を添加することができる。 FIG. 5 shows a conventional hot water supply apparatus described in Patent Document 1. As shown in FIG. As shown in FIG. 5, the water reforming means is incorporated in the water path. In this patent document 1, as a water reforming means, an electrolysis method using an additive component as an electrode (zinc anode 1) is used, and electricity is supplied to the electrodes 1 and 2 while pouring water passes through the water reforming means. By electrolyzing a part of the electrode 1 in the pouring water, a water-reforming component having a predetermined concentration can be added.
また、特許文献１以外の他の水改質手段としては、水改質成分を含有した無機化合物を、湯水と接触させて濃度拡散を利用して溶解する手段も用いることができる。 Further, as other water reforming means other than Patent Document 1, a means for dissolving an inorganic compound containing a water reforming component by making contact with hot water and using concentration diffusion can also be used.
しかしながら、前記従来の構成には、水改質手段内の水流方向等に関する技術は開示させていない。 However, the conventional configuration does not disclose a technique related to the direction of water flow in the water reforming means.
本発明は、前記従来の課題を解決するもので、水改質手段内の水流方向を、反重力方向にすることを安定化させることで、水改質成分の溶解濃度を安定的に確保することができる溶解装置を提供することを目的とする。 The present invention solves the above-described conventional problems, and stably stabilizes the dissolved concentration of the water reforming component by stabilizing the water flow direction in the water reforming means to be the antigravity direction. An object of the present invention is to provide a dissolution apparatus that can be used.
前記従来の課題を解決するために、本発明の溶解装置は、湯水を注湯する注湯経路と、前記注湯経路からの湯水を分流させるように形成した並列分岐経路と、前記並列分岐経路に配設し、前記湯水の機能改質成分を添加する水改質手段とを備え、前記水改質手段内の水流方向が反重力方向となるように、前記水改質手段を保持する固定手段を設けたことを特徴とするものである。 In order to solve the above-described conventional problems, the melting device of the present invention includes a pouring path for pouring hot water, a parallel branch path formed so as to divert hot water from the pouring path, and the parallel branch path. And a water reforming means for adding the functional reforming component of the hot water, and holding the water reforming means so that the water flow direction in the water reforming means is the antigravity direction. Means is provided.
これにより、水改質手段内の水流方向を、反重力方向にすることを安定化させることで、水改質成分の溶解濃度を安定的に確保することができる溶解装置を提供できる。 Thereby, the melt | dissolution apparatus which can ensure stably the melt | dissolution density | concentration of a water reforming component can be provided by stabilizing making the water flow direction in a water reforming means into the antigravity direction.
本発明によれば、水改質手段内の水流方向を、反重力方向にすることを安定化させることで、水改質成分の溶解濃度を安定的に確保することができる溶解装置を提供できる。 According to the present invention, it is possible to provide a dissolution apparatus that can stably secure the dissolution concentration of the water reforming component by stabilizing the water flow direction in the water reforming means to be the antigravity direction. .
第１の発明は、湯水を注湯する注湯経路と、前記注湯経路からの湯水を分流させるように形成した並列分岐経路と、前記並列分岐経路に配設し、前記湯水の機能改質成分を添加する水改質手段とを備え、前記水改質手段内の水流方向が反重力方向となるように、前記水改質手段を保持する固定手段を設けたことを特徴とする溶解装置である。 According to a first aspect of the present invention, there is provided a pouring path for pouring hot water, a parallel branch path formed so as to divert hot water from the pouring path, and a function improvement of the hot water provided in the parallel branch path. And a water reforming unit for adding components, and a fixing device for holding the water reforming unit is provided so that the direction of water flow in the water reforming unit is an antigravity direction. It is.
これにより、水改質手段内の水流方向を、反重力方向にすることを安定化させることで、水改質成分の溶解濃度を安定的に確保することができる溶解装置を提供できる。 Thereby, the melt | dissolution apparatus which can ensure stably the melt | dissolution density | concentration of a water reforming component can be provided by stabilizing making the water flow direction in a water reforming means into the antigravity direction.
すなわち、機能改質成分が無機化合物粒子である場合には、この無機化合物粒子を均一に攪拌することができるので、水改質成分の溶解濃度を安定的に確保することができる。 That is, when the functional modification component is inorganic compound particles, the inorganic compound particles can be uniformly stirred, so that the dissolution concentration of the water modification component can be stably secured.
第２の発明は、第１の発明の溶解装置において、前記固定手段の回転を抑制するための回転防止機構を設けたことを特徴とするもので、水改質手段をより確実に地面に対して垂直に近い角度で保持することができるため、無機化合物粒子を均一に攪拌することができるので、水改質成分の溶解濃度を安定的に確保することができる。 According to a second aspect of the present invention, in the melting apparatus of the first aspect, a rotation preventing mechanism for suppressing the rotation of the fixing means is provided, and the water reforming means is more reliably attached to the ground. In addition, since the inorganic compound particles can be uniformly stirred, the dissolved concentration of the water reforming component can be stably secured.
第３の発明は、第１または第２の発明の溶解装置において、前記水改質手段に水準器を設けたことを特徴とするもので、水改質手段をより確実に地面に対して垂直に近い角度で調整・保持することができるため、無機化合物粒子を均一に攪拌することができるので、水改質成分の溶解濃度を安定的に確保することができる。 A third invention is characterized in that, in the melting apparatus of the first or second invention, the water reforming means is provided with a level, and the water reforming means is more reliably perpendicular to the ground. Since the inorganic compound particles can be uniformly agitated and can be adjusted and held at an angle close to, the dissolution concentration of the water reforming component can be stably ensured.
以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.
（実施の形態）
図１は、本発明の実施の形態における給湯装置の構成図を示すものである。図２は、同実施の形態における水改質回路の詳細の一例を示すものである。
(Embodiment)
FIG. 1 shows a block diagram of a hot water supply apparatus in an embodiment of the present invention. FIG. 2 shows an example of the details of the water reforming circuit in the same embodiment.
図１において、圧縮機２２、給湯熱交換器２３、減圧手段２４、蒸発器２５を冷媒回路２６で順に環状に接続してヒートポンプユニット２１を構成している。貯湯ユニット２７の貯湯タンク２８には水が貯留されており、出湯回路３０は貯湯タンク２８、給湯水ポンプ２９、給湯熱交換器２３、貯湯タンク２８を順に接続する回路である。浴槽水加熱回路３５は、貯湯タンク２８、風呂熱交換器３３、浴槽水加熱ポンプ３４、貯湯タンク２８を順に接続する回路であり、風呂熱交換器３３の他方の回路には浴槽４２が接続されている。 In FIG. 1, a heat pump unit 21 is configured by connecting a compressor 22, a hot water supply heat exchanger 23, a decompression unit 24, and an evaporator 25 in an annular manner in order by a refrigerant circuit 26. Water is stored in a hot water storage tank 28 of the hot water storage unit 27, and a hot water discharge circuit 30 is a circuit that connects the hot water storage tank 28, a hot water supply pump 29, a hot water supply heat exchanger 23, and a hot water storage tank 28 in this order. The bathtub water heating circuit 35 is a circuit that connects the hot water storage tank 28, the bath heat exchanger 33, the bathtub water heating pump 34, and the hot water storage tank 28 in order, and the bathtub 42 is connected to the other circuit of the bath heat exchanger 33. ing.
浴槽水循環回路４１は、浴槽４２、浴槽水を搬送する浴槽水ポンプ４０、風呂熱交換器３３を順に接続する回路である。浴槽水注湯経路３９は、貯湯タンク２８の水を、浴槽水循環回路４１を経由して浴槽４２へ注湯する回路である。 The bathtub water circulation circuit 41 is a circuit which connects the bathtub 42, the bathtub water pump 40 which conveys bathtub water, and the bath heat exchanger 33 in order. The bathtub water pouring path 39 is a circuit for pouring the water in the hot water storage tank 28 to the bathtub 42 via the bathtub water circulation circuit 41.
この回路には貯湯タンク２８の高温の水と水道水を混合する浴槽水混合弁３６、注湯する水温を検知する温度検知手段３７、浴槽水注湯経路３９の回路の開閉を行う浴槽水注湯弁３８を順に備える。 This circuit includes a bathtub water mixing valve 36 that mixes hot water in the hot water storage tank 28 and tap water, temperature detection means 37 that detects the temperature of the water to be poured, and bathtub water injection that opens and closes the circuit of the bathtub water pouring path 39. The hot water valve 38 is provided in order.
水改質回路１０は、浴槽水注湯弁の下流側の浴槽水注湯経路３９内の途中に配設されている回路である。図２に示すように、水改質回路１０は、浴槽水注湯経路内の注湯経路１１の途中に２ヶ所の分岐部１２を設け、両分岐部１２を並列分岐経路１３で接続し、並列分岐経路１３上に水改質手段１７を貯湯ユニット２７の本体筺体内に収納するように配設したものである。 The water reforming circuit 10 is a circuit disposed in the middle of the bathtub water pouring path 39 on the downstream side of the bathtub water pouring valve. As shown in FIG. 2, the water reforming circuit 10 is provided with two branch portions 12 in the middle of the pouring route 11 in the bathtub water pouring route, and the two branch portions 12 are connected by the parallel branch route 13. The water reforming means 17 is disposed on the parallel branch path 13 so as to be housed in the main body housing of the hot water storage unit 27.
また、図２に示すように、分岐部１２を経て注湯経路１１に流れる湯水の一部が並列分岐経路１３側に分流し、水改質手段１７にて水改質成分を添加された水が再び分岐部１２を経て、注湯経路１１の湯水と合流し、水改質成分が添加された湯水が浴槽４２に注湯される。 In addition, as shown in FIG. 2, a part of the hot water flowing into the pouring path 11 through the branch portion 12 is diverted to the parallel branch path 13 side, and water to which a water reforming component is added by the water reforming means 17. After passing through the branching portion 12 again, it merges with the hot water in the pouring passage 11, and hot water to which the water reforming component is added is poured into the bathtub 42.
ここで並列分岐回路１３側に湯水を分岐、流量調整する手段としては、注湯経路１１の管径ａに対して、並列分岐経路１３の管径ｂの方を大きくすることで、注湯経路１１と、並列分岐経路１３の間で圧力損失差を作る方法や、注湯経路１１から並列分岐回路１３に分岐する分岐部１２と、注湯経路１１に再び合流する下流側の分岐部１２との距離を変化させることで圧力損失差を作る方法、または水流分配比調整手段１８を使用するなど、図２に示す前記のいずれか、または複数の手段を組み合わせることなどが挙げられる。 Here, as a means for branching hot water into the parallel branch circuit 13 and adjusting the flow rate, the pipe diameter b of the parallel branch path 13 is made larger than the pipe diameter a of the pouring path 11, so 11 and a method of creating a pressure loss difference between the parallel branch path 13, a branch section 12 that branches from the pouring path 11 to the parallel branch circuit 13, and a downstream branch section 12 that joins the pouring path 11 again 2 or a combination of a plurality of means shown in FIG. 2, such as a method of creating a pressure loss difference by changing the distance, or using the water flow distribution ratio adjusting means 18.
また、例えば、水流分配調整手段１８を使用することで、並列分岐回路１３への分岐の有無、つまりは水改質成分の添加の有無についても調整が可能な構成となっている。 Further, for example, by using the water flow distribution adjusting means 18, it is possible to adjust whether or not the parallel branch circuit 13 is branched, that is, whether or not a water reforming component is added.
ヒートポンプユニット２１で貯湯タンク２８に貯留された水を加熱する運転は、以下のような動作となる。 The operation of heating the water stored in the hot water storage tank 28 by the heat pump unit 21 is as follows.
貯湯タンク２８の水は、給湯水ポンプ２９によって給湯熱交換器２３へ搬送され、ヒートポンプサイクル動作によって加熱される。給湯水ポンプ２９は給湯熱交換器２３で加熱された給湯水の温度が予め決定した温度になる様に、出湯回路３０の流量を制御する。 The water in the hot water storage tank 28 is conveyed to the hot water supply heat exchanger 23 by the hot water supply water pump 29 and heated by the heat pump cycle operation. The hot water supply pump 29 controls the flow rate of the hot water supply circuit 30 so that the temperature of the hot water heated by the hot water supply heat exchanger 23 becomes a predetermined temperature.
浴槽４２への湯張り、並びに、浴槽水の加熱は以下のような動作となる。 The filling of the bathtub 42 and the heating of the bathtub water are as follows.
浴槽水注湯経路３９の浴槽水混合弁３６は、温度検知手段３７で検知する注湯温度がリモコン等（図示せず）で予め設定された温度となるように、高温の水と水道水の混合割合を調整する。所定温度となった浴槽水は、浴槽水注湯経路３９、浴槽水循環回路４１を順に経由して浴槽４２へ流出する。一方、浴槽４２の浴槽水を加熱する場合は、貯湯タンク２８に貯留された高温の水を、浴槽水加熱ポンプ３４によって風呂熱交換器３３へ搬送し、浴槽水ポンプ４０より搬送された浴槽水を加熱する。風呂熱交換器３３で浴槽水を加熱して温度が下がった給湯水は、貯湯タンク２８の下部より内部へ流入する。 The bathtub water mixing valve 36 of the bathtub water pouring path 39 has a hot water and tap water so that the pouring temperature detected by the temperature detecting means 37 becomes a temperature preset by a remote controller or the like (not shown). Adjust the mixing ratio. The bathtub water having a predetermined temperature flows out into the bathtub 42 through the bathtub water pouring path 39 and the bathtub water circulation circuit 41 in this order. On the other hand, when the bathtub water in the bathtub 42 is heated, the hot water stored in the hot water storage tank 28 is conveyed to the bath heat exchanger 33 by the bathtub water heating pump 34, and the bathtub water conveyed from the bathtub water pump 40. Heat. Hot-water supply water whose temperature has been lowered by heating the bath water in the bath heat exchanger 33 flows into the interior from the lower part of the hot water storage tank 28.
また、利用者が浴槽４２へ湯はりを行う場合は、リモコン等で湯はり動作の指示操作を行う。 In addition, when the user performs hot water injection to the bathtub 42, the remote controller or the like performs a hot water operation instruction operation.
リモコン操作後、予め設定された温度に浴槽水混合弁３６で調整された水が、浴槽水注湯弁３８を閉から開に制御した場合に、浴槽水注湯弁３８から、浴槽水注湯経路３９内の注湯経路１１に湯水が流入し、注湯経路１１の管径ａに対して、並列分岐経路１３の管径ｂの方を大きくすることで、注湯経路１１と、並列分岐経路１３間に圧力損失差を作り、注湯経路１１に流れる湯水の一部が並列分岐経路１３側に分流し、水改質手段１７にて水改質成分を添加された水が再び分岐部１２を経て、注湯経路１１の湯水と合流し、水改質成分が添加された湯水を浴槽４２に注湯される。 After the remote control operation, when the water adjusted by the bathtub water mixing valve 36 to a preset temperature controls the bathtub water injection valve 38 from closed to open, the bathtub water injection valve 38 is used to The hot water flows into the pouring path 11 in the path 39 and the pipe diameter b of the parallel branch path 13 is made larger than the pipe diameter a of the pouring path 11, so A pressure loss difference is created between the paths 13, a part of the hot water flowing in the pouring path 11 is diverted to the parallel branch path 13, and the water to which the water reforming component is added by the water reforming means 17 is branched again. 12, the hot water added with the water reforming component is poured into the bathtub 42 after joining the hot water of the pouring passage 11.
ここで、水改質手段１７には無機化合物粒子１５を収容する収納容器１４が備えられており、収納容器１４内の水流方向は地から天の方向になるように構成されている。これにより、無機化合物粒子１５が水流で持ち上げられて水の流路を確保するため、無機化合物粒子１５由来の圧力損失を大幅に低減することが可能となると同時に、粒子を攪拌させることによる溶解濃度を向上させることができる。 Here, the water reforming means 17 is provided with a storage container 14 for storing the inorganic compound particles 15, and the water flow direction in the storage container 14 is configured to be the direction from the ground to the sky. Thereby, since the inorganic compound particles 15 are lifted by the water flow and the flow path of the water is secured, the pressure loss derived from the inorganic compound particles 15 can be greatly reduced, and at the same time, the dissolution concentration by stirring the particles Can be improved.
さらに、水改質手段１７は、固定手段１９により例えば貯湯タンク２８などに固定し、水改質手段１７を地面に対して略垂直に保持することで無機化合物粒子１５を均一に攪拌することができるので、水改質成分の溶解濃度を安定的に確保することが可能となる。 Further, the water reforming means 17 is fixed to, for example, the hot water storage tank 28 by the fixing means 19 and the water reforming means 17 is held substantially perpendicular to the ground, whereby the inorganic compound particles 15 can be uniformly stirred. As a result, it is possible to stably ensure the dissolution concentration of the water reforming component.
ここで、水改質手段１７を固定手段１９により固定する相手側については貯湯タンク２８に限定するものではなく、貯湯ユニット２７の筐体など、通常地面に対して略垂直に配置されるものから連結されることで水改質手段１７を結果的に略垂直に保持することができるものであればよい。 Here, the other side for fixing the water reforming means 17 by the fixing means 19 is not limited to the hot water storage tank 28, but from the one that is disposed substantially perpendicular to the normal ground, such as the case of the hot water storage unit 27. What is necessary is just to be able to hold | maintain the water reforming means 17 as a result substantially vertical by being connected.
図３は、本実施の形態において固定手段１９にネジ締結を使用した場合の構成図であり、図４は図３における固定手段１９の概略構成図である。 FIG. 3 is a configuration diagram when screw fastening is used for the fixing means 19 in the present embodiment, and FIG. 4 is a schematic configuration diagram of the fixing means 19 in FIG.
１９−ａはネジ締結部、１９−ｂは回転防止機構（例えば穴とボス形状の嵌合など）である。それぞれの位置や数量は限定しない。 Reference numeral 19-a denotes a screw fastening portion, and 19-b denotes a rotation prevention mechanism (for example, fitting between a hole and a boss shape). Each position and quantity are not limited.
また、固定手段１９が板金の場合は１９−ｂがツメ形状と穴の嵌合や、面と面の接触などによる回転防止機構も構成可能であり、ネジを締結するときに固定手段１９が回転することを防止できる形状であればその組み合わせ等についても限定しないものとする。 In addition, when the fixing means 19 is a sheet metal, 19-b can be configured with an anti-rotation mechanism such as a fitting of a claw shape and a hole, or contact between surfaces, and the fixing means 19 rotates when fastening a screw. As long as the shape can be prevented, the combination and the like are not limited.
これにより水改質手段１７をより確実に地面に対して垂直に近い角度で保持することができ、無機化合物粒子１５を均一に攪拌することができるので、水改質成分の溶解濃度を安定的に確保することが可能となる。 As a result, the water reforming means 17 can be more reliably held at an angle close to perpendicular to the ground, and the inorganic compound particles 15 can be stirred uniformly, so that the concentration of water reforming component dissolved can be stabilized. Can be secured.
また、図示はしないが水改質手段１７に水準器を設けることにより、地面に対する水改質手段１７の垂直度を正確に確認することができるため、水改質手段１７の角度の微調整を行うことができるので、水改質成分の溶解濃度をより安定的に確保することが可能となる。 Although not shown, since the water reforming unit 17 is provided with a level, the verticality of the water reforming unit 17 with respect to the ground can be accurately confirmed. Therefore, the angle of the water reforming unit 17 can be finely adjusted. Since it can be performed, it becomes possible to secure the dissolved concentration of the water reforming component more stably.
以上のように、本発明にかかる溶解装置は、無機化合物の水への溶解濃度を安定化させることができ、貯湯式給湯機の他、ガス熱源の給湯機にも利用できる。 As described above, the dissolution apparatus according to the present invention can stabilize the concentration of inorganic compounds dissolved in water, and can be used for a hot water storage hot water heater or a gas heat source water heater.
１０ 水改質回路
１４ 収納容器
１７ 水改質手段
１９ 固定手段
２１ ヒートポンプユニット
２７ 貯湯ユニット
２８ 貯湯タンク
３８ 浴槽水注湯弁
３９ 浴槽水注湯経路
４１ 浴槽水循環回路
４２ 浴槽
DESCRIPTION OF SYMBOLS 10 Water reforming circuit 14 Storage container 17 Water reforming means 19 Fixing means 21 Heat pump unit 27 Hot water storage unit 28 Hot water storage tank 38 Bathtub water pouring valve 39 Bathtub water pouring route 41 Bathtub water circulation circuit 42 Bathtub
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| JPS58207931A (en) * | 1982-05-28 | 1983-12-03 | Toshiba Corp | Apparatus for opening and closing cover of pressure dissolving container |
| JPH09126556A (en) * | 1995-10-31 | 1997-05-16 | Takagi Ind Co Ltd | Bath water purifying type reheating apparatus |
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