JP5421670B2 - Gas booster for dishwasher - Google Patents

Gas booster for dishwasher Download PDF

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JP5421670B2
JP5421670B2 JP2009154452A JP2009154452A JP5421670B2 JP 5421670 B2 JP5421670 B2 JP 5421670B2 JP 2009154452 A JP2009154452 A JP 2009154452A JP 2009154452 A JP2009154452 A JP 2009154452A JP 5421670 B2 JP5421670 B2 JP 5421670B2
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water
exhaust
dishwasher
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passage
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JP2011010663A (en
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衛 津森
真澄 野津
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Hoshizaki Electric Co Ltd
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    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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Description

この発明は、燃焼ガスが流れる排気筒を備えた食器洗浄機用ガスブースターに関するものである。   The present invention relates to a gas booster for a dishwasher provided with an exhaust pipe through which combustion gas flows.

従来、食器洗浄機は、洗浄室内に収納した食器に対して洗浄ノズルから洗浄水を噴射して洗浄を行い、その後すすぎノズルからすすぎ水を噴射してすすぎを行うように構成されている。このとき、洗浄水の温度は６０〜６５℃程度に設定されるが、すすぎ水の温度は殺菌等の観点から８０〜８５℃程度の高温に設定されることが多く、特に業務用などの大型の食器洗浄機では、使用する水量が多いことと相まって、食器洗浄機本体とは別に設置した食器洗浄機用ガスブースターからすすぎ水が供給されるように構成されている。   2. Description of the Related Art Conventionally, a dishwasher is configured to perform cleaning by spraying cleaning water from a cleaning nozzle on tableware stored in a cleaning chamber, and then rinsing by spraying rinsing water from a rinsing nozzle. At this time, the temperature of the washing water is set to about 60 to 65 ° C., but the temperature of the rinsing water is often set to a high temperature of about 80 to 85 ° C. from the viewpoint of sterilization and the like. In this dishwasher, in conjunction with the large amount of water used, rinse water is supplied from a gas booster for a dishwasher installed separately from the main body of the dishwasher.

このような食器洗浄機を概略的に説明すると、図３に示す如く、食器洗浄機１における洗浄機本体２の左側には、汚れた食器３を収容したラック４を載せるためのソイルドテーブル５が設置され、洗浄機本体２の右側には、洗浄後の食器３を収容したラック４を載せるためのクリーンテーブル６が設置されている。ソイルドテーブル５には、食器の洗浄に先立って、汚れた食器を浸漬水に浸漬して食器にこびりついたご飯粒、油分等の汚れを食器から分離又は柔らかくして分離し易くするための浸漬槽７が設けられており、該浸漬槽７内には蛇口から供給された水が所定量貯留される。浸漬槽７の前面及び左右側面には、側面パネル８がテーブルから垂下して設けられており、浸漬槽７の外面が使用者から見えないようになっている。また、ソイルドテーブル５及びクリーンテーブル６の背面には、後方への飛水を防止するための立て板９が設けられている。そして、食器洗浄機１に隣接したクリーンテーブル６の下方には食器洗浄機用ガスブースター１０が設置されている。   Such a dishwasher will be schematically described. As shown in FIG. 3, a soil table 5 on which a rack 4 containing dirty dishes 3 is placed on the left side of the washing machine body 2 in the dishwasher 1. A clean table 6 is placed on the right side of the main body 2 of the washing machine for placing a rack 4 containing the washed dishes 3. Prior to washing the tableware, the soil table 5 is dipped to make it easier to separate or soften the dirt such as rice grains and oils that have stuck to the tableware by dipping the tableware in the immersion water. A tank 7 is provided, and a predetermined amount of water supplied from the faucet is stored in the immersion tank 7. Side panels 8 are provided to hang from the table on the front and left and right side surfaces of the immersion tank 7 so that the outer surface of the immersion tank 7 is not visible to the user. A standing plate 9 is provided on the back of the soil table 5 and the clean table 6 to prevent water from flying backward. A dishwasher gas booster 10 is installed below the clean table 6 adjacent to the dishwasher 1.

図４に示すように、前記食器洗浄機用ガスブースター１０の本体１１内には、貯水タンク１２が配置され、図示しない湯沸器等の外部給水源から流入管１４を介して水が供給されるようになっている。貯水タンク１２内には、貯水タンク１２内の水を昇温するためのバーナー１６と熱交換通路１８が設けられている。熱交換通路１８は、貯水タンク１２内の水と接する表面積をかせぐために蛇行状に形成され、上端部には本体１１の上面板を貫通して上方に開口する上端開口部１９が形成されている。バーナー１６にはガス供給管２０を介して外部に配置された図示しないガス供給源からガスが供給されるようになっている。また、本体１１の上面には、水平部２２と、水平部２２の後端に連通接続される垂直部２４とから形成される排気筒２６が載置されている。具体的には、熱交換通路１８の上端開口部１９に、排気筒２６の水平部２２底面に形成された吸気口が対向するように配置され、垂直部２４の上部前面には排気口３０が形成されている。これにより、バーナー１６で発生した燃焼ガスは、熱交換通路１８から排気筒２６内に流入した後、排気口３０から外部へ排出されるようになっている。更に、貯水タンク１２下部には、洗浄機本体２に接続される流出管３４が設けられ、すすぎ時に洗浄機本体２からすすぎ水供給信号が出力されると、貯水タンク１２内の温水が図示しない駆動ポンプにより流出管３４を介して洗浄機本体２に供給可能となっている。洗浄機本体２に供給された温水は、すすぎ水として洗浄室Ｓ内に収納された食器４に噴射される。   As shown in FIG. 4, a water storage tank 12 is arranged in the main body 11 of the dishwasher gas booster 10, and water is supplied from an external water supply source such as a water heater (not shown) through an inflow pipe 14. It has become so. In the water storage tank 12, a burner 16 and a heat exchange passage 18 for raising the temperature of the water in the water storage tank 12 are provided. The heat exchange passage 18 is formed in a meandering shape so as to increase the surface area in contact with the water in the water storage tank 12, and an upper end opening 19 that opens upward through the upper surface plate of the main body 11 is formed at the upper end. . Gas is supplied to the burner 16 from a gas supply source (not shown) disposed outside via a gas supply pipe 20. Further, on the upper surface of the main body 11, an exhaust tube 26 formed by a horizontal portion 22 and a vertical portion 24 connected to the rear end of the horizontal portion 22 is placed. Specifically, the upper opening 19 of the heat exchange passage 18 is disposed so that the intake port formed on the bottom surface of the horizontal portion 22 of the exhaust tube 26 faces the exhaust port 30. Is formed. As a result, the combustion gas generated in the burner 16 flows into the exhaust tube 26 from the heat exchange passage 18 and is then discharged from the exhaust port 30 to the outside. Further, an outflow pipe 34 connected to the washing machine main body 2 is provided at the lower part of the water storage tank 12. When a rinse water supply signal is output from the washing machine main body 2 at the time of rinsing, the hot water in the water storage tank 12 is not shown. It can be supplied to the cleaning machine main body 2 through the outflow pipe 34 by a drive pump. The hot water supplied to the washing machine body 2 is sprayed on the tableware 4 stored in the washing room S as rinse water.

続いて食器の洗浄手順を説明する。汚れた食器は先ず浸漬槽７内の貯留水の中に浸漬させる。浸漬槽７の中である程度の時間浸漬されると、食器に付着していた汚れが分離又は柔らかくなって分離し易くなる。そして、浸漬槽７内から食器を取り出してソイルドテーブル５上に用意したラック内に並べ、ラックをそのままスライド移動させて洗浄室Ｓ内にラックをセットし、扉１５を閉めてラック内の食器の洗浄及びすすぎを行う。洗浄を行っている間に別のラックをソイルドテーブル５上に用意し、浸漬槽７内から新たな食器を取り出して別のラック内に並べておく。洗浄中の食器の洗浄が終了したら、扉１５を開いてラックを洗浄室Ｓからクリーンテーブル６上にスライド移動させる。そして、汚れた食器を並べておいた別のラックを洗浄室Ｓ内にセットして次なる洗浄を行う。このように、絶え間なく食器を次々と洗浄することができるようになっている。   Next, the tableware washing procedure will be described. The dirty tableware is first immersed in the stored water in the immersion tank 7. When immersed in the immersion tank 7 for a certain period of time, the dirt adhering to the tableware is separated or softened and becomes easy to separate. Then, the tableware is taken out from the dipping tank 7 and arranged in a rack prepared on the soil table 5, the rack is slid as it is, the rack is set in the cleaning chamber S, the door 15 is closed, and the tableware in the rack is placed. Wash and rinse. While cleaning is being performed, another rack is prepared on the soil table 5, and new tableware is taken out from the dipping bath 7 and arranged in another rack. When the cleaning of the tableware being cleaned is completed, the door 15 is opened and the rack is slid from the cleaning chamber S onto the clean table 6. Then, another rack in which dirty dishes are arranged is set in the cleaning chamber S, and the next cleaning is performed. In this way, the dishes can be washed one after another without any interruption.

特開２００１−２３１７３６号公報JP 2001-2331736 A 特開２００６−２３９０２４号公報JP 2006-239024 A

以上のような手順で洗浄を行うのであるが、食器に付着した汚れが多いときや、頑固な汚れが付着している場合などは、食器洗浄機で洗浄を行う前の前処理として、使用者があらかじめ浸漬槽内で簡単に擦り洗いをする必要がある。このとき、使用者は浸漬槽内の水で前処理を行うのであるが、浸漬槽内の水は蛇口から出てきた水を溜めているだけなので、冬場は非常に冷たく、お湯を溜めたとしてもすぐに冷めてしまい前処理をするのが辛い状況であった。また、ガスブースターから排出される排気は非常に高温であり、更にガスブースターの燃焼時は排気筒の表面も高温となるため、排熱により厨房内が温度上昇してしまい、作業環境が悪くなってしまうという問題もあった。
すなわち本発明は、前述した従来の技術に内在している前記課題に鑑み、これを好適に解決するべく提案されたものであって、汚れた食器を扱うためのソイルドテーブルに設けられた浸漬槽と、食器洗浄機用ガスブースターの排気筒内を流れる燃焼ガスとを熱交換させることで、排熱を有効利用して浸漬槽内の水を温度上昇させ、排気筒からの排熱量を低減させることができる食器洗浄機用ガスブースターを提供することを目的とする。 Washing is performed according to the procedure described above. However, if there is a lot of dirt on the tableware or if stubborn dirt is attached, as a pre-treatment before washing with the dishwasher, the user However, it is necessary to easily rub in an immersion bath in advance. At this time, the user pre-treats with the water in the dipping tank, but the water in the dipping tank only collects water from the faucet, so it is very cold in winter, and hot water is stored. However, it was difficult to pre-treat because it quickly cooled down. In addition, the exhaust gas discharged from the gas booster is very hot, and the surface of the exhaust stack also becomes hot when the gas booster is combusted. There was also a problem of end up.
That is, the present invention has been proposed to solve this problem in view of the above-mentioned problems inherent in the prior art described above, and is a dipping provided in a soil table for handling dirty dishes. By exchanging heat between the tank and the combustion gas flowing in the exhaust cylinder of the dishwasher gas booster, the temperature of the water in the immersion tank is increased by effectively using the exhaust heat, reducing the amount of exhaust heat from the exhaust cylinder. It is an object of the present invention to provide a gas booster for a dishwasher that can be made to operate.

前記課題を克服し、所期の目的を好適に達成するため、本発明に係る食器洗浄機用ガスブースターは、
食器洗浄機の近傍に配置され、外部給水源から供給された水を貯留する貯水タンクと、該貯水タンク内の水を加熱する加熱装置と、水の加熱に用いた燃焼ガスを排気するための排気筒とを備え、加熱された温水を食器洗浄機に供給可能とし、
前記排気筒には、食器洗浄機用ガスブースターの近傍に配置されて汚れた食器を浸漬する浸漬槽と熱交換可能な熱交換部が設けられた排気通路と、該排気通路とは分岐して設けられ前記熱交換部を迂回するバイパス通路と、前記排気通路とバイパス通路との分岐地点に設けられた流路切替板とが設けられ、該流路切替板は、燃焼ガスを排気通路へ案内する位置とバイパス通路へ案内する位置とに排気流路を切り替え可能となっていることを特徴とする。 In order to overcome the above-mentioned problems and achieve the desired purpose suitably, the gas booster for a dishwasher according to the present invention comprises:
A water storage tank that is disposed in the vicinity of the dishwasher and stores water supplied from an external water supply source, a heating device that heats the water in the water storage tank, and exhaust gas used for heating the water It is possible to supply heated hot water to the dishwasher with an exhaust pipe,
The exhaust pipe is disposed near the gas booster for the dishwasher and is immersed in a soaking tank in which dirty dishes are immersed , and an exhaust passage provided with a heat exchanging portion , and the exhaust passage is branched. A bypass passage that bypasses the heat exchange section and a flow path switching plate provided at a branch point between the exhaust passage and the bypass passage is provided, and the flow path switching plate guides the combustion gas to the exhaust passage. The exhaust flow path can be switched between a position where the exhaust passage is guided and a position where the exhaust passage is guided to the bypass passage .

本発明に係る食器洗浄機用ガスブースターによれば、排熱を有効利用して浸漬槽内の水を温度上昇させ、排気筒からの排熱量を低減させることができる。   According to the gas booster for a dishwasher according to the present invention, it is possible to increase the temperature of the water in the immersion tank by effectively using the exhaust heat, and to reduce the amount of exhaust heat from the exhaust pipe.

実施例に係る食器洗浄機用ガスブースターを設置した状態を示す側断面図である。It is a sectional side view which shows the state which installed the gas booster for tableware washing machines which concerns on an Example. 実施例に係る食器洗浄機用ガスブースターを設置した状態を示す正面図である。It is a front view which shows the state which installed the gas booster for tableware washing machines which concerns on an Example. 従来の食器洗浄機、ソイルドテーブル及び食器洗浄機用ガスブースターの設置状況外観斜視図である。It is an installation state external appearance perspective view of the conventional tableware washing machine, a soil table, and the gas booster for tableware washing machines. 従来の食器洗浄機用ガスブースターの断面図である。It is sectional drawing of the gas booster for the conventional tableware washing machines.

次に、本発明に係る食器洗浄機用ガスブースターにつき、好適な実施例を挙げて、図１及び図２を参照しながら以下説明する。なお、食器洗浄機用ガスブースターにおける本体内部の貯湯タンク等の構成、及びソイルドテーブルの構成は前述した図３及び図４と同様の構成であり、同一部材については同一符号を用いて説明する。また、説明における前後左右の方向については、図１の紙面左側を「前方」、紙面右側を「後方」とする。   Next, a gas booster for a dishwasher according to the present invention will be described below with reference to FIGS. In addition, the structure of the hot water storage tank etc. in the main body in the gas booster for a dishwasher and the structure of the soil table are the same as those in FIGS. 3 and 4 described above, and the same members will be described using the same reference numerals. . In the description, the left and right directions in FIG. 1 are “front” and the right side is “rear”.

図１及び図２に示すように、本発明に係る食器洗浄機用ガスブースター５０における排気筒６０には、本体１１の上面に配置される第１水平部５２と、第１水平部５２の後端から立設する第１垂直部５４と、第１垂直部５４の上端から後方に延在する第２水平部５６と、第２水平部５６の後端から立設する第２垂直部５８とから成る排気通路６１が設けられている。第１水平部５２の前部下面には、本体１１内で発生した燃焼ガスを第１水平部５２へ引き入れる吸気口６２が設けられ、第２垂直部５８の上部前面には、排気筒６０内の燃焼ガスを外部へ排出するための排気口６４が設けられている。これにより、バーナー１６で発生した燃焼ガスは、吸気口６２から第１水平部５２、第１垂直部５４、第２水平部５６、第２垂直部５８へと順次流れ、排気口６４から外部へと排出されるようになっている。   As shown in FIGS. 1 and 2, the exhaust pipe 60 in the dishwasher gas booster 50 according to the present invention includes a first horizontal portion 52 disposed on the upper surface of the main body 11 and a rear portion of the first horizontal portion 52. A first vertical portion 54 erected from the end, a second horizontal portion 56 extending rearward from the upper end of the first vertical portion 54, and a second vertical portion 58 erected from the rear end of the second horizontal portion 56 An exhaust passage 61 is provided. An intake port 62 through which combustion gas generated in the main body 11 is drawn into the first horizontal portion 52 is provided on the lower surface of the front portion of the first horizontal portion 52, and the exhaust pipe 60 is disposed on the upper front surface of the second vertical portion 58. An exhaust port 64 is provided for discharging the combustion gas to the outside. Thus, the combustion gas generated in the burner 16 sequentially flows from the intake port 62 to the first horizontal portion 52, the first vertical portion 54, the second horizontal portion 56, and the second vertical portion 58, and from the exhaust port 64 to the outside. It is supposed to be discharged.

更に、前記排気筒６０には、吸気口６２の上流側と第２垂直部５８の下面とをつなぎ、第１水平部５２、第１垂直部５４および第２水平部５６を迂回するバイパス通路６３が設けられている。排気通路６１とバイパス通路６３との分岐地点には、食器洗浄機用ガスブースター５０の制御部(図示せず)に接続された流路切替板６６が設けられており、制御部からの指示により、バイパス通路６３の入口を塞ぎバーナー１６からの燃焼ガスを排気通路６１へと案内する第１位置（図１の実線位置）と、排気通路６１の入口を塞ぎバーナー１６からの燃焼ガスをバイパス通路６３へと案内する第２位置（図１の鎖線位置）とに排気流路を切り換え可能となっている。   Further, a bypass passage 63 that connects the upstream side of the intake port 62 and the lower surface of the second vertical portion 58 to the exhaust pipe 60 and bypasses the first horizontal portion 52, the first vertical portion 54, and the second horizontal portion 56. Is provided. At a branch point between the exhaust passage 61 and the bypass passage 63, a flow path switching plate 66 connected to a control unit (not shown) of the dishwasher gas booster 50 is provided. The first position (solid line position in FIG. 1) for closing the inlet of the bypass passage 63 and guiding the combustion gas from the burner 16 to the exhaust passage 61, and closing the inlet of the exhaust passage 61 to pass the combustion gas from the burner 16 to the bypass passage The exhaust flow path can be switched to a second position (a chain line position in FIG. 1) for guiding to 63.

前記食器洗浄機用ガスブースター５０は、ソイルドテーブル５における浸漬槽７の下方に位置するように配置される。具体的には、前記第１水平部５２の上面が浸漬槽７の底板と、第１垂直部５４の前面が浸漬槽７の後板と対向するように配置され、第２水平部５６は浸漬槽７の後方で立て板９の下方に位置し、第２垂直部５８は立て板９に沿って立て板９の後方に位置するように配置される。   The dishwasher gas booster 50 is arranged to be positioned below the immersion tank 7 in the soil table 5. Specifically, the upper surface of the first horizontal portion 52 is disposed so that the bottom plate of the immersion bath 7 and the front surface of the first vertical portion 54 face the rear plate of the immersion bath 7, and the second horizontal portion 56 is immersed. The second vertical portion 58 is disposed behind the standing plate 9 along the standing plate 9 so as to be located behind the standing plate 9 behind the tank 7.

前記第１水平部５２の上面と第１垂直部５４の前面には伝熱部材７０、７１が設けられており、上述のように食器洗浄機用ガスブースター５０を浸漬槽７の下方に配置したときに、伝熱部材７０が浸漬槽７の底板と面接触し、伝熱部材７１が浸漬槽７の後板と面接触するようになっている。伝熱部材７０、７１は、熱伝導性の良い板金等で形成されており、この伝熱部材７０、７１の厚さを調整することで、浸漬槽７と排気筒６０の第１水平部５２と第１垂直部５４とが隙間なく伝熱部材７０、７１を介して間接的に接触するようになっている。なお、第２水平部５６と第２垂直部５８はソイルドテーブル５のどこにも接触しないように配置されている。また、浸漬槽７の外面には、食器洗浄機用ガスブースター５０の制御部に接続されたサーミスタ等の温度検知手段７５が取り付けられており、浸漬槽７の温度を検知できるようになっている。そして、制御部は、温度検知手段７５により検出された温度が所定温度以下の場合は前記流路切替板６６を第１位置に位置させ、所定温度以上の場合は前記流路切替板６６を切り替えて第２位置に位置させるようになっている。   Heat transfer members 70 and 71 are provided on the upper surface of the first horizontal portion 52 and the front surface of the first vertical portion 54, and the dishwasher gas booster 50 is disposed below the immersion tank 7 as described above. Sometimes, the heat transfer member 70 is in surface contact with the bottom plate of the immersion tank 7, and the heat transfer member 71 is in surface contact with the rear plate of the immersion tank 7. The heat transfer members 70 and 71 are formed of a sheet metal or the like having good heat conductivity. By adjusting the thickness of the heat transfer members 70 and 71, the first horizontal portion 52 of the immersion tank 7 and the exhaust pipe 60. And the first vertical portion 54 are in indirect contact with each other via the heat transfer members 70 and 71 without a gap. Note that the second horizontal portion 56 and the second vertical portion 58 are arranged so as not to contact any part of the soil table 5. Further, temperature detection means 75 such as a thermistor connected to the control unit of the dishwasher gas booster 50 is attached to the outer surface of the immersion tank 7 so that the temperature of the immersion tank 7 can be detected. . The control unit positions the flow path switching plate 66 at the first position when the temperature detected by the temperature detecting means 75 is equal to or lower than the predetermined temperature, and switches the flow path switching plate 66 when the temperature is higher than the predetermined temperature. Are positioned at the second position.

次に、以上のように構成された本実施例の運転動作及び作用を説明する。まず、浸漬槽７内に水が溜められ、適宜タイミングで汚れた食器が浸漬槽７内に投入される。そして、食器洗浄機用ガスブースター５０の電源スイッチがＯＮされると、先ず流入側開閉弁(図示せず)が開かれて湯沸器等の外部給水源から水が流入管１４を介して貯水タンク１２に供給され、貯水タンク１２内に配置された図示しない水位検知装置により所定量の水が溜まったことが検知されると水の供給が停止される。次いで運転スイッチをＯＮとすることによりバーナー１６が点火され、燃焼ガスが熱交換通路１８を通過する間に貯水タンク１２内の水と熱交換されて貯水タンク１２内の水が昇温される。貯水タンク１２内の水が設定温度（例えば８０℃）まで昇温したことを図示しない水温検知部が検知すると昇温動作は停止され、運転開始時の初期動作が完了する。以後、貯水タンク１２内の水を設定温度付近の温度に維持するようバーナー１６がＯＮＯＦＦ制御される。その後、適宜タイミングで食器洗浄機１からすすぎ水供給信号が出力されると、図示しない駆動ポンプにより流出管３４を介して温水が洗浄機本体２に供給され、洗浄室Ｓ内に収納された食器３に噴射されてすすぎが行われる。水位検知装置により貯水タンク１２内の水位が減ったことが検知されると、流入側開閉弁が開かれて自動的に水が補給されるようになっている。   Next, the operation and action of the present embodiment configured as described above will be described. First, water is stored in the immersion tank 7, and the soiled tableware is put into the immersion tank 7 at an appropriate timing. When the power switch of the dishwasher gas booster 50 is turned on, an inflow side on-off valve (not shown) is first opened, and water is stored from the external water supply source such as a water heater through the inflow pipe 14. When it is detected that a predetermined amount of water has been accumulated by a water level detection device (not shown) that is supplied to the tank 12 and disposed in the water storage tank 12, the supply of water is stopped. Next, when the operation switch is turned on, the burner 16 is ignited, and while the combustion gas passes through the heat exchange passage 18, heat is exchanged with the water in the water storage tank 12 to raise the temperature of the water in the water storage tank 12. When a water temperature detector (not shown) detects that the water in the water storage tank 12 has been heated to a set temperature (for example, 80 ° C.), the temperature raising operation is stopped, and the initial operation at the start of operation is completed. Thereafter, the burner 16 is ON / OFF controlled so as to maintain the water in the water storage tank 12 at a temperature near the set temperature. Thereafter, when a rinsing water supply signal is output from the dishwasher 1 at an appropriate timing, hot water is supplied to the washing machine main body 2 via the outflow pipe 34 by a driving pump (not shown), and the tableware stored in the washing room S Rinsing is carried out by spraying to 3. When the water level detection device detects that the water level in the water storage tank 12 has decreased, the inflow side opening / closing valve is opened to automatically supply water.

運転開始当初は、浸漬槽７の温度は浸漬槽７内に貯留された常温の水と同程度の温度であるため温度検知手段７５により検出される温度は所定温度(例えば４０℃)以下であり、流路切替板６６は第１位置に位置している。よって、バーナー１６で発生した燃焼ガスは、熱交換通路１８から吸気口６２を介して排気通路６１へと流れ、排気口６４から外部へ排出される。前記排気通路６１内を流れる燃焼ガスは、第１水平部５２を流れる間に伝熱部材７０と浸漬槽７の底板（熱交換部）を介して浸漬槽７内の貯留水と熱交換が行われ、第１垂直部５４を流れる間に伝熱部材７１と浸漬槽７の後板（熱交換部）を介して浸漬槽７内の貯留水と熱交換が行われる。熱交換により、浸漬槽７内の貯留水の水温が上昇して所定温度を超えたことが温度検知手段７５により検知されると、制御部からの指示により流路切替板６６が第２位置へと切り替わり、バーナー１６で発生した燃焼ガスはバイパス通路６３へと案内される。燃焼ガスがバイパス通路６３に案内されている間は燃焼ガスと貯留水との間で熱交換が行われないため、貯留水の温度が次第に低下していく。そして、貯留水の温度が所定温度以下となったことが温度検知手段７５により検知されると、制御部からの指示により流路切替板６６が再び第１位置へと切り替わり、伝熱部材７０、７１を介して燃焼ガスと浸漬槽７内の貯留水との間で熱交換が行われて水温が上昇する。このように排気流路を切り替えることで貯留水の温度が所定温度付近に維持される。なお、浸漬槽７内に水が無い場合は浸漬槽７の温度が急激に上昇するので、温度検知手段７５により温度上昇が検知されて排気がバイパス通路６３へと案内される。   At the beginning of operation, the temperature of the immersion tank 7 is about the same as that of normal temperature water stored in the immersion tank 7, so that the temperature detected by the temperature detecting means 75 is a predetermined temperature (for example, 40 ° C.) or less. The flow path switching plate 66 is located at the first position. Therefore, the combustion gas generated in the burner 16 flows from the heat exchange passage 18 to the exhaust passage 61 via the intake port 62 and is discharged from the exhaust port 64 to the outside. The combustion gas flowing in the exhaust passage 61 exchanges heat with the stored water in the immersion tank 7 through the heat transfer member 70 and the bottom plate (heat exchange part) of the immersion tank 7 while flowing in the first horizontal portion 52. In addition, while flowing through the first vertical portion 54, heat exchange with the stored water in the immersion bath 7 is performed via the heat transfer member 71 and the rear plate (heat exchange portion) of the immersion bath 7. When the temperature detection means 75 detects that the temperature of the stored water in the immersion tank 7 has risen and exceeded a predetermined temperature due to heat exchange, the flow path switching plate 66 is moved to the second position by an instruction from the control unit. The combustion gas generated in the burner 16 is guided to the bypass passage 63. While the combustion gas is being guided to the bypass passage 63, heat exchange is not performed between the combustion gas and the stored water, so that the temperature of the stored water gradually decreases. When the temperature detecting means 75 detects that the temperature of the stored water has become equal to or lower than the predetermined temperature, the flow path switching plate 66 is again switched to the first position by an instruction from the control unit, and the heat transfer member 70, Heat exchange is performed between the combustion gas and the stored water in the immersion tank 7 via 71, and the water temperature rises. By switching the exhaust flow path in this way, the temperature of the stored water is maintained near the predetermined temperature. Note that when there is no water in the immersion tank 7, the temperature of the immersion tank 7 rises rapidly, so that the temperature rise is detected by the temperature detection means 75 and the exhaust is guided to the bypass passage 63.

以上のように、実施例の食器洗浄機用ガスブースター５０によれば、排気筒６０の排気通路６１内を流れる燃焼ガスと浸漬槽７内の貯留水とを熱交換するようにしたので、排気筒６０内を流れる間に燃焼ガスの温度が低下し、排気口６４から外部へ排出される燃焼ガスの温度及び排気筒６０自身の表面温度を下げることができ、排気筒からの排熱量を低減させることができる。更に、排熱を有効利用して浸漬槽７内の水を温度上昇させることができるので、水温が低い場合に比べて浸漬された食器に付着している汚れが分離し易くなり、使用者が前処理を行う際に暖かい水で作業を行うことができる。また、バイパス通路６３を設けて排気流路を切り替え可能としたので、浸漬槽７内の貯留水を適温に維持することができる。
（変更例） As described above, according to the gas booster 50 for a dishwasher of the embodiment, the combustion gas flowing in the exhaust passage 61 of the exhaust pipe 60 and the stored water in the immersion tank 7 are heat-exchanged. While flowing through the cylinder 60, the temperature of the combustion gas decreases, the temperature of the combustion gas discharged from the exhaust port 64 and the surface temperature of the exhaust cylinder 60 itself can be lowered, and the amount of exhaust heat from the exhaust cylinder is reduced. Can be made. Furthermore, since the temperature of the water in the immersion tank 7 can be increased by effectively utilizing the exhaust heat, dirt attached to the immersed tableware can be easily separated as compared with the case where the water temperature is low, and the user can It is possible to work with warm water during the pretreatment. In addition, since the bypass passage 63 is provided so that the exhaust passage can be switched, the stored water in the immersion tank 7 can be maintained at an appropriate temperature.
(Example of change)

本発明では、前述の実施例に限定されず、以下の如く変更することも可能である。
(１)実施例では食器洗浄機用ガスブースターは、ソイルドテーブルにおける浸漬槽の下方に位置するように配置したが、浸漬槽の側方に配置するようにしてもよい。このとき、排気筒は浸漬槽に向けて横方向に延在するように配置して浸漬槽と熱交換させるようにすればよい。
(２)実施例では浸漬槽の外面に温度検知手段を設けて浸漬槽内に水が無いことを検知できるようにしたが、浸漬槽内に水位検知手段を設けて浸漬槽内に水が無いことを検知できるようにしてもよい。
(３)実施例では浸漬槽と排気筒とを伝熱部材を介して間接的に接触させるようにしたが、伝熱部材を設けずに浸漬槽と排気筒とを直接接触（この場合接触部分が熱交換部となる）させるようにしてもよい。
(４)実施例ではソイルドテーブルに一体に設けられた浸漬槽と熱交換させるようにしたが、テーブルとは別体で設けられた浸漬槽と熱交換させるようにしてもよい。 The present invention is not limited to the above-described embodiments, but can be modified as follows.
(1) Although the dish booster gas booster is arranged to be positioned below the immersion tank in the soil table in the embodiment, it may be arranged on the side of the immersion tank. At this time, the exhaust pipe may be arranged so as to extend in the lateral direction toward the immersion tank so as to exchange heat with the immersion tank.
(2) In the embodiment, temperature detection means is provided on the outer surface of the immersion tank so that it can be detected that there is no water in the immersion tank, but water level detection means is provided in the immersion tank so that there is no water in the immersion tank. This may be detected.
(3) In the embodiment, the immersion tank and the exhaust pipe are indirectly contacted via the heat transfer member, but the immersion tank and the exhaust pipe are directly contacted without providing the heat transfer member (in this case, the contact portion) May be a heat exchanging part).
(4) In the embodiment, heat is exchanged with the immersion bath provided integrally with the soil table, but heat exchange may be performed with the immersion bath provided separately from the table.

５ ソイルドテーブル
７ 浸漬槽
５０ 食器洗浄機用ガスブースター
５２ 第１水平部
５４ 第１垂直部
６１ 排気通路
６０ 排気筒
６３ バイパス通路
６６ 流路切替板
７０、７１ 伝熱部材 DESCRIPTION OF SYMBOLS 5 Soil table 7 Immersion tank 50 Gas booster for dishwashers 52 1st horizontal part 54 1st vertical part 61 Exhaust passage 60 Exhaust pipe 63 Bypass passage 66 Flow path switching plate 70, 71 Heat transfer member

Claims (1)

食器洗浄機の近傍に配置され、外部給水源から供給された水を貯留する貯水タンクと、該貯水タンク内の水を加熱する加熱装置と、水の加熱に用いた燃焼ガスを排気するための排気筒とを備え、加熱された温水を食器洗浄機に供給可能とした食器洗浄機用ガスブースターにおいて、
前記排気筒には、食器洗浄機用ガスブースターの近傍に配置されて汚れた食器を浸漬する浸漬槽と熱交換可能な熱交換部が設けられた排気通路と、該排気通路とは分岐して設けられ前記熱交換部を迂回するバイパス通路と、前記排気通路とバイパス通路との分岐地点に設けられた流路切替板とが設けられ、該流路切替板は、燃焼ガスを排気通路へ案内する位置とバイパス通路へ案内する位置とに排気流路を切り替え可能となっていることを特徴とする食器洗浄機用ガスブースター。 A water storage tank that is disposed in the vicinity of the dishwasher and stores water supplied from an external water supply source, a heating device that heats the water in the water storage tank, and exhaust gas used for heating the water In a gas booster for a dishwasher comprising an exhaust pipe and capable of supplying heated hot water to the dishwasher,
The exhaust pipe is disposed near the gas booster for the dishwasher and is immersed in a soaking tank in which dirty dishes are immersed , and an exhaust passage provided with a heat exchanging portion , and the exhaust passage is branched. A bypass passage that bypasses the heat exchange section and a flow path switching plate provided at a branch point between the exhaust passage and the bypass passage is provided, and the flow path switching plate guides the combustion gas to the exhaust passage. A gas booster for a dishwasher, characterized in that the exhaust flow path can be switched between a position to be guided and a position to be guided to the bypass passage .
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Cited By (2)

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Publication number Priority date Publication date Assignee Title
KR101710158B1 (en) * 2015-10-19 2017-02-27 린나이코리아 주식회사 Exhaust system of gas-type dishwashers
KR101760790B1 (en) * 2016-04-08 2017-07-24 김성현 A dish washer having heat exchange structure

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KR101688461B1 (en) * 2016-01-27 2016-12-21 김성현 Dish washer having heat exchanger
KR101679625B1 (en) * 2016-04-08 2016-11-25 김성우 A dish washer having waste heat recovery line

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JPS59183878A (en) * 1983-04-04 1984-10-19 松下電器産業株式会社 Instrument washing apparatus
JPH0795950A (en) * 1993-09-30 1995-04-11 Nippon Senjiyouki Kk Tableware washing apparatus
JPH0795949A (en) * 1993-09-30 1995-04-11 Nippon Senjiyouki Kk Tableware washing apparatus
JP3507993B2 (en) * 1994-05-27 2004-03-15 株式会社アイホー Continuous dishwashing method and apparatus
JP2000279357A (en) * 1999-03-30 2000-10-10 Yokogawa Denshikiki Co Ltd Dish washer
JP2001231736A (en) * 2000-02-24 2001-08-28 Nippon Senjoki Kk Dishwasher
JP2004298867A (en) * 2003-03-19 2004-10-28 Teepol Diversey Kk Cleaning method, unit for reusing waste water therefor, and cleaning apparatus thereof

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KR101710158B1 (en) * 2015-10-19 2017-02-27 린나이코리아 주식회사 Exhaust system of gas-type dishwashers
KR101760790B1 (en) * 2016-04-08 2017-07-24 김성현 A dish washer having heat exchange structure

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