JP2014188031A - Washing device - Google Patents

Washing device Download PDF

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JP2014188031A
JP2014188031A JP2013063683A JP2013063683A JP2014188031A JP 2014188031 A JP2014188031 A JP 2014188031A JP 2013063683 A JP2013063683 A JP 2013063683A JP 2013063683 A JP2013063683 A JP 2013063683A JP 2014188031 A JP2014188031 A JP 2014188031A
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cleaning
water
washing
heat
tank
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JP6170316B2 (en
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Koji Sato
晃司 佐藤
Hiroshi Mukoyama
洋 向山
Takeshi Ishii
武 石井
Masahisa Otake
雅久 大竹
Yoshinobu Kawahara
慶喜 川原
Hideki Mori
秀樹 森
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Chubu Electric Power Co Inc
Panasonic Corp
Tokyo Electric Power Company Holdings Inc
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Tokyo Electric Power Co Inc
Chubu Electric Power Co Inc
Panasonic Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a washing device which has achieved effective utilization of heat which washing water has.SOLUTION: A washing device 1 comprises: a carrying conveyor 11 for conveying tableware 2; a washing water tank 21 for storing heated washing water; a spray nozzle 50 for washing the tableware 2 by jetting the washing water to the conveyed tableware 2; and an exhaust fan 6 for exhausting air including steam of the washing water. The washing device 1 includes: a heat pump unit 70 for heating the washing water by drawing heat of exhaust air; and a hot water storage tank 111 connected to the heat pump unit 70. The washing device further includes a first switch vale 121 and a second switch valve 123 for, when the washing of the tableware 2 is completed, switching the flow of the washing water so as to recover heat in the hot water storage tank 111 by drawing the heat in each of the washing water tanks 21 to 61 by the heat pump unit 70.

Description

本発明は、加温された洗浄水を噴射して被洗浄物を洗浄する洗浄装置に関する。   The present invention relates to a cleaning apparatus that cleans an object to be cleaned by spraying heated cleaning water.

一般に、被洗浄物としての食器を搬送する搬送手段と、加温された洗浄水を貯留する洗浄水槽と、搬送された食器に洗浄水を噴射して当該食器を洗浄する洗浄手段と、洗浄水の水蒸気を含んだ空気を排気する排気手段とを備えた洗浄装置が知られている（例えば、特許文献１参照）。この種の洗浄装置では、食器に付着した油や残菜を効果的に除去するために、洗浄水を電気ヒータ等で高温に加熱して利用している。   In general, transport means for transporting tableware as an object to be cleaned, a cleaning water tank for storing heated cleaning water, cleaning means for spraying cleaning water on the transported tableware to clean the tableware, and cleaning water There is known a cleaning device provided with an exhaust means for exhausting air containing water vapor (see, for example, Patent Document 1). In this type of cleaning apparatus, cleaning water is heated to a high temperature with an electric heater or the like in order to effectively remove oil and leftovers attached to the tableware.

特開２００５−２４５６３９号公報JP 2005-245639 A

ところで、洗浄水を加温する構成では、この洗浄水が有する熱を有効に利用することが望ましい。しかし、従来の構成では、食器の洗浄工程が終了した場合、洗浄水槽内に貯留された高温の洗浄水は、そのまま放熱により冷却されるため、洗浄水の加温に要した熱が無駄となるという問題があった。
本発明は、上述した事情に鑑みてなされたものであり、洗浄水が有する熱の有効利用を図った洗浄装置を提供することを目的とする。 By the way, in the structure which heats washing water, it is desirable to utilize effectively the heat which this washing water has. However, in the conventional configuration, when the tableware cleaning process is completed, the high-temperature cleaning water stored in the cleaning water tank is cooled by heat dissipation as it is, so that the heat required for heating the cleaning water is wasted. There was a problem.
This invention is made | formed in view of the situation mentioned above, and it aims at providing the washing | cleaning apparatus which aimed at the effective utilization of the heat which washing water has.

上記目的を達成するため、本発明は、被洗浄物を搬送する搬送手段と、加温された洗浄水を貯留する洗浄水槽と、搬送された前記被洗浄物に前記洗浄水を噴射して当該被洗浄物を洗浄する洗浄手段と、前記洗浄水の水蒸気を含んだ空気を排気する排気手段とを備えた洗浄装置において、排気の熱を汲み上げて前記洗浄水を加温するヒートポンプ手段と、このヒートポンプ手段に接続される貯湯タンクとを備え、前記被洗浄物の洗浄が終了した場合、前記洗浄水槽内の温熱を前記ヒートポンプ手段で汲み上げ、前記貯湯タンクに回収するよう前記洗浄水の流れを切り替える切替弁を備えたことを特徴とする。   In order to achieve the above object, the present invention includes a transport means for transporting an object to be cleaned, a cleaning water tank for storing heated cleaning water, and jetting the cleaning water onto the transported object to be cleaned. In a cleaning device comprising a cleaning means for cleaning an object to be cleaned and an exhaust means for exhausting air containing water vapor of the cleaning water, a heat pump means for pumping up the heat of the exhaust and heating the cleaning water, A hot water storage tank connected to the heat pump means, and when washing of the object to be washed is completed, the heat water in the washing water tank is pumped up by the heat pump means and the flow of the washing water is switched to be collected in the hot water storage tank A switching valve is provided.

この場合において、前記切替弁は、前記被洗浄物の洗浄を開始する場合に、前記貯湯タンク内の前記洗浄水を前記洗浄水槽に導くように切り替えられる構成としても良い。
また、前記ヒートポンプ手段は、前記排気の熱を冷媒に与える蒸発器と、この蒸発器で気化した冷媒を圧縮する圧縮機と、圧縮した冷媒と洗浄水とを熱交換して当該洗浄水を加熱するガスクーラーとを備え、このガスクーラーには、該ガスクーラーで加熱した洗浄水を前記洗浄水槽に供給する第１流路と、該洗浄水を前記貯湯タンクに供給する第２流路とが並列に接続され、これら各流路の分岐点に前記切替弁が設けられても良い。 In this case, the switching valve may be configured to be switched so as to guide the cleaning water in the hot water storage tank to the cleaning water tank when the cleaning of the article to be cleaned is started.
The heat pump means heats the washing water by exchanging heat between the evaporator that gives heat of the exhaust to the refrigerant, a compressor that compresses the refrigerant vaporized by the evaporator, and the compressed refrigerant and washing water. The gas cooler includes a first flow path for supplying cleaning water heated by the gas cooler to the cleaning water tank, and a second flow path for supplying the cleaning water to the hot water storage tank. It is connected in parallel, and the switching valve may be provided at a branch point of each of the flow paths.

本発明によれば、被洗浄物の洗浄が終了した場合、洗浄水槽内の温熱をヒートポンプ手段で汲み上げ、貯湯タンクに回収するよう洗浄水の流れを切り替える切替弁を備えたため、洗浄水槽で洗浄水が放熱により冷却されることが防止され、当該洗浄水が有する熱の有効利用を図ることができる。   According to the present invention, when washing of the object to be washed is completed, the washing water tank is provided with the switching valve for switching the flow of washing water so that the heat in the washing water tank is pumped up by the heat pump means and collected in the hot water storage tank. Is prevented from being cooled by heat radiation, and the heat of the washing water can be effectively used.

本実施形態にかかる洗浄装置を側面から見た概略構成図である。It is the schematic structure figure which looked at the washing device concerning this embodiment from the side. 変形例にかかる洗浄装置を側面から見た概略構成図である。It is the schematic block diagram which looked at the washing | cleaning apparatus concerning a modification from the side.

以下、本発明の実施の形態を、図面を参照しながら説明する。
図１は、本実施形態にかかる洗浄装置の概略構成図である。
洗浄装置１は、主として皿、椀またはトレー等の食器（被洗浄物）２を連続的に洗浄するための装置である。洗浄装置１は、図１に示すように、略箱型に形成された洗浄装置本体１０と、この洗浄装置本体１０の長手方向に沿って配置され、食器２を搬送する搬送コンベア（搬送手段）１１とを備え、この搬送コンベア１１の両端部にそれぞれ食器２の投入口１２及び取出口１３が形成されている。搬送コンベア１１は、例えばネット式のコンベアであり、スプレーノズルを通じて上方から噴射された洗浄水が搬送コンベア１１の下方に流下するようになっている。
洗浄装置本体１０は、内部が仕切板１４により複数の空間に区分けされ、投入口１２と取出口１３との間には、これら投入口１２から取出口１３に向かって、予備洗浄室１５、主洗浄室１６、すすぎ洗浄室１７、仕上げすすぎ洗浄室１８及び洗浄水槽室１９が形成されている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic configuration diagram of a cleaning apparatus according to the present embodiment.
The cleaning apparatus 1 is an apparatus for continuously cleaning tableware (objects to be cleaned) 2 such as a plate, a bowl or a tray. As shown in FIG. 1, the cleaning device 1 includes a cleaning device main body 10 formed in a substantially box shape, and a transport conveyor (transport means) that is disposed along the longitudinal direction of the cleaning device main body 10 and transports the dishes 2. 11 and an inlet 12 and an outlet 13 for the tableware 2 are formed at both ends of the conveyor 11 respectively. The transport conveyor 11 is, for example, a net-type conveyor, and the wash water sprayed from above through the spray nozzle flows down below the transport conveyor 11.
The inside of the cleaning apparatus main body 10 is divided into a plurality of spaces by a partition plate 14, and between the inlet 12 and the outlet 13, the preliminary cleaning chamber 15, A cleaning chamber 16, a rinse cleaning chamber 17, a final rinse cleaning chamber 18 and a cleaning water tank chamber 19 are formed.

本構成では、食器２は、搬送コンベア１１により、予備洗浄室１５、主洗浄室１６、すすぎ洗浄室１７、仕上げすすぎ洗浄室１８、洗浄水槽室１９の順に搬送されるのに対し、洗浄水は、洗浄水槽室１９、仕上げすすぎ洗浄室１８、すすぎ洗浄室１７、主洗浄室１６、予備洗浄室１５の順に、食器２と対向して流れるように構成されている。これにより、洗浄水の使用量を抑制することができ、当該洗浄水を加熱する際のエネルギー消費量の低減を図ることができる。
洗浄水槽室１９は、後述するヒートポンプユニット（ヒートポンプ手段）７０及び電気ヒータ２２の少なくとも一方により高温（例えば８５℃）に加熱された洗浄水を貯留する空間であり、搬送コンベア１１の下部に上記した高温の洗浄水が貯留される洗浄水槽２１が配置され、この洗浄水槽２１の内部には洗浄水を加熱するための電気ヒータ２２が設置されている。また、洗浄水槽２１の底面には洗浄水配管２３が接続され、この洗浄水配管２３は、送水ポンプ２４を介して、洗浄水槽室１９に隣接する仕上げすすぎ洗浄室１８の上方に延びている。 In this configuration, the tableware 2 is conveyed by the conveyor 11 in the order of the pre-cleaning chamber 15, the main cleaning chamber 16, the rinse cleaning chamber 17, the finishing rinse cleaning chamber 18, and the cleaning water tank chamber 19, whereas the cleaning water is The cleaning water tank chamber 19, the finish rinse cleaning chamber 18, the rinse cleaning chamber 17, the main cleaning chamber 16, and the preliminary cleaning chamber 15 are arranged so as to face the tableware 2 in this order. Thereby, the usage-amount of washing water can be suppressed and the reduction of the energy consumption at the time of heating the said washing water can be aimed at.
The washing water tank chamber 19 is a space for storing washing water heated to a high temperature (for example, 85 ° C.) by at least one of a heat pump unit (heat pump means) 70 and an electric heater 22 to be described later. A washing water tank 21 in which high-temperature washing water is stored is disposed, and an electric heater 22 for heating the washing water is installed in the washing water tank 21. Further, a washing water pipe 23 is connected to the bottom surface of the washing water tank 21, and this washing water pipe 23 extends above the finishing rinse washing chamber 18 adjacent to the washing water tank chamber 19 via a water pump 24.

仕上げすすぎ洗浄室１８は、洗浄水槽室１９の洗浄水槽２１に貯留された洗浄水を利用して最終的な仕上げすすぎ工程を実行する空間である。仕上げすすぎ洗浄室１８は、搬送コンベア１１の上方に配置されたスプレーノズル３０を備え、このスプレーノズル３０に洗浄水槽室１９の洗浄水槽２１から延びる洗浄水配管２３が接続されている。これにより、洗浄水槽２１に貯留された洗浄水がスプレーノズル３０を通じて、搬送コンベア１１上の食器２に噴射される。
洗浄水槽２１には、市水（水道水）が供給されており、この市水を加温して食器２に噴射することにより、当該食器２の仕上げすすぎ工程が実行される。
また、仕上げすすぎ洗浄室１８には、搬送コンベア１１の下部に、スプレーノズル３０から噴射された洗浄水を受けて貯留する洗浄水槽３１が配置され、この洗浄水槽３１の内部には洗浄水を加熱するための電気ヒータ３２が設置されている。洗浄水槽３１の底面には洗浄水配管３３が接続され、この洗浄水配管３３は、送水ポンプ３４を介して、仕上げすすぎ洗浄室１８に隣接するすすぎ洗浄室１７の上方に延びている。 The finish rinse cleaning chamber 18 is a space for executing a final finish rinsing process using the cleaning water stored in the cleaning water tank 21 of the cleaning water tank chamber 19. The finish rinse cleaning chamber 18 includes a spray nozzle 30 disposed above the transport conveyor 11, and a cleaning water pipe 23 extending from the cleaning water tank 21 of the cleaning water tank chamber 19 is connected to the spray nozzle 30. Thereby, the wash water stored in the wash water tank 21 is sprayed to the tableware 2 on the transport conveyor 11 through the spray nozzle 30.
City water (tap water) is supplied to the washing water tank 21, and the final rinsing process of the tableware 2 is executed by heating the city water and spraying it onto the tableware 2.
Further, in the final rinse cleaning chamber 18, a cleaning water tank 31 that receives and stores the cleaning water sprayed from the spray nozzle 30 is disposed at the bottom of the conveyor 11, and the cleaning water is heated inside the cleaning water tank 31. An electric heater 32 is installed. A washing water pipe 33 is connected to the bottom surface of the washing water tank 31, and this washing water pipe 33 extends above the rinse washing chamber 17 adjacent to the finish rinse washing chamber 18 via a water pump 34.

すすぎ洗浄室１７は、仕上げすすぎ洗浄室１８の洗浄水槽３１に貯留された洗浄水を利用してすすぎ工程を実行する空間である。すすぎ洗浄室１７は、搬送コンベア１１の上方に配置されたスプレーノズル４０を備え、このスプレーノズル４０に仕上げすすぎ洗浄室１８の洗浄水槽３１から延びる洗浄水配管３３が接続されている。これにより、洗浄水槽３１に貯留された洗浄水がスプレーノズル４０を通じて、搬送コンベア１１上の食器２に噴射される。
洗浄水槽３１には、上記した仕上げすすぎ工程で利用された洗浄水が貯留されており、この洗浄水はほとんど汚れていないため、洗浄水槽３１に貯留された洗浄水を食器２に噴射することにより、当該食器２のすすぎ工程が実行される。
また、すすぎ洗浄室１７には、搬送コンベア１１の下部に、スプレーノズル４０から噴射された洗浄水を受けて貯留する洗浄水槽４１が配置され、この洗浄水槽４１の内部には洗浄水を加熱するための電気ヒータ４２が設置されている。洗浄水槽４１の底面には洗浄水配管４３が接続され、この洗浄水配管４３は、送水ポンプ４４を介して、すすぎ洗浄室１７に隣接する主洗浄室１６の上方に延びている。 The rinsing cleaning chamber 17 is a space for executing a rinsing process using the cleaning water stored in the cleaning water tank 31 of the finishing rinsing cleaning chamber 18. The rinse cleaning chamber 17 includes a spray nozzle 40 disposed above the conveyor 11, and a cleaning water pipe 33 extending from the cleaning water tank 31 of the final rinse cleaning chamber 18 is connected to the spray nozzle 40. Thereby, the washing water stored in the washing water tank 31 is sprayed to the tableware 2 on the transport conveyor 11 through the spray nozzle 40.
In the washing water tank 31, the washing water used in the above-described finish rinsing process is stored, and since this washing water is hardly contaminated, the washing water stored in the washing water tank 31 is jetted onto the tableware 2. The rinsing process of the tableware 2 is executed.
Further, in the rinsing cleaning chamber 17, a cleaning water tank 41 that receives and stores the cleaning water sprayed from the spray nozzle 40 is disposed at the lower part of the conveyor 11, and the cleaning water is heated inside the cleaning water tank 41. An electric heater 42 is installed. A washing water pipe 43 is connected to the bottom surface of the washing water tank 41, and the washing water pipe 43 extends above the main washing chamber 16 adjacent to the rinse washing chamber 17 via a water pump 44.

主洗浄室１６は、すすぎ洗浄室１７の洗浄水槽４１に貯留された洗浄水を利用して主洗浄工程を実行する空間である。主洗浄室１６は、搬送コンベア１１の上方に配置されたスプレーノズル５０を備え、このスプレーノズル５０にすすぎ洗浄室１７の洗浄水槽４１から延びる洗浄水配管４３が接続されている。これにより、洗浄水槽４１に貯留された洗浄水がスプレーノズル５０を通じて、搬送コンベア１１上の食器２に噴射される。
洗浄水槽４１には、上記したすすぎ工程で利用された洗浄水が貯留されており、この洗浄水はすすぎ工程により若干の汚れ等を含んでいるが、洗浄に使用するには十分であるため、洗浄水槽４１に貯留された洗浄水を食器２に噴射することにより、当該食器２の主洗浄工程が実行される。なお、食器２に付着した汚れや油分を効果的に除去するために、洗浄水槽４１に所定量の洗剤を注入する構成としても良い。
また、主洗浄室１６には、搬送コンベア１１の下部に、スプレーノズル（洗浄手段）５０から噴射された洗浄水を受けて貯留する洗浄水槽５１が配置され、この洗浄水槽５１の内部には洗浄水を加熱するための電気ヒータ５２が設置されている。洗浄水槽５１の底面には洗浄水配管５３が接続され、この洗浄水配管５３は、送水ポンプ５４を介して、主洗浄室１６に隣接する予備洗浄室１５の上方に延びている。 The main cleaning chamber 16 is a space in which the main cleaning process is performed using the cleaning water stored in the cleaning water tank 41 of the rinse cleaning chamber 17. The main cleaning chamber 16 includes a spray nozzle 50 disposed above the conveyor 11, and a cleaning water pipe 43 extending from the cleaning water tank 41 of the rinsing cleaning chamber 17 is connected to the spray nozzle 50. Thereby, the wash water stored in the wash water tank 41 is sprayed to the tableware 2 on the transport conveyor 11 through the spray nozzle 50.
In the washing water tank 41, the washing water used in the above-described rinsing process is stored, and this washing water contains some dirt and the like due to the rinsing process, but is sufficient for use in washing, The main washing process of the said tableware 2 is performed by injecting the wash water stored in the washing water tank 41 to the tableware 2. In addition, in order to remove effectively dirt and oil adhering to the tableware 2, a predetermined amount of detergent may be injected into the washing water tank 41.
In the main cleaning chamber 16, a cleaning water tank 51 that receives and stores the cleaning water sprayed from the spray nozzle (cleaning means) 50 is disposed at the lower part of the conveyor 11. An electric heater 52 for heating water is installed. A cleaning water pipe 53 is connected to the bottom surface of the cleaning water tank 51, and this cleaning water pipe 53 extends above the preliminary cleaning chamber 15 adjacent to the main cleaning chamber 16 via a water pump 54.

予備洗浄室１５は、主洗浄室１６の洗浄水槽５１に貯留された洗浄水を利用し、食器２に付着した残菜や汚れを大まかに除去する予備洗浄工程を実行する空間である。予備洗浄室１５は、搬送コンベア１１の上方に配置されたスプレーノズル６０を備え、このスプレーノズル６０に主洗浄室１６の洗浄水槽５１から延びる洗浄水配管５３が接続されている。これにより、洗浄水槽５１に貯留された洗浄水がスプレーノズル６０を通じて、搬送コンベア１１上の食器２に噴射される。
洗浄水槽５１には、上記した主洗浄工程で利用された洗浄水が貯留されており、この洗浄水は主洗浄工程により汚れ等を含んだ水となっているが、食器２に付着した汚れ等の除去に使用するには十分であるため、洗浄水槽５１に貯留された洗浄水を食器２に噴射することにより、当該食器２の予備洗浄工程が実行される。
また、予備洗浄室１５には、搬送コンベア１１の下部に、スプレーノズル６０から噴射された洗浄水を受けて貯留する洗浄水槽６１が配置されている。この洗浄水槽６１の底面には排水配管６３が接続され、この排水配管６３は、排水バルブ６４を介して機外の排水配管に接続されている。このため、洗浄水槽６１には洗浄水を加熱するヒータが設けられてはいない。 The pre-cleaning chamber 15 is a space for executing a pre-cleaning step for roughly removing leftovers and dirt attached to the tableware 2 using the cleaning water stored in the cleaning water tank 51 of the main cleaning chamber 16. The preliminary cleaning chamber 15 includes a spray nozzle 60 disposed above the conveyor 11, and a cleaning water pipe 53 extending from the cleaning water tank 51 of the main cleaning chamber 16 is connected to the spray nozzle 60. Thereby, the wash water stored in the wash water tank 51 is sprayed to the tableware 2 on the transport conveyor 11 through the spray nozzle 60.
The washing water used in the main washing process is stored in the washing water tank 51, and this washing water is water containing dirt in the main washing process. Since it is sufficient to be used for removing water, the cleaning water stored in the cleaning water tank 51 is sprayed onto the tableware 2 to execute a preliminary cleaning process for the tableware 2.
In the preliminary cleaning chamber 15, a cleaning water tank 61 that receives and stores the cleaning water sprayed from the spray nozzle 60 is disposed at the lower part of the transport conveyor 11. A drain pipe 63 is connected to the bottom surface of the washing water tank 61, and the drain pipe 63 is connected to a drain pipe outside the machine via a drain valve 64. For this reason, the cleaning water tank 61 is not provided with a heater for heating the cleaning water.

仕上げすすぎ洗浄室１８の上方には、排熱回収熱交換器５と、排気ファン（排気手段）６とが配置され、この排気ファン６が運転されることにより、仕上げすすぎ洗浄室１８の空気が排熱回収熱交換器５を通じて機外に排出される。
上述のように、予備洗浄室１５、主洗浄室１６、すすぎ洗浄室１７、仕上げすすぎ洗浄室１８、及び、洗浄水槽室１９には、それぞれ洗浄水槽２１〜６１に高温の洗浄水が貯留されている。また、予備洗浄室１５、主洗浄室１６、すすぎ洗浄室１７、及び、仕上げすすぎ洗浄室１８では、スプレーノズル３０〜６０を通じて、これら高温の洗浄水が噴射されるため、これら予備洗浄室１５、主洗浄室１６、すすぎ洗浄室１７、仕上げすすぎ洗浄室１８、及び、洗浄水槽室１９内には高温の水蒸気を含んだ空気が充満している。
また、本実施形態では、予備洗浄室１５、主洗浄室１６、すすぎ洗浄室１７、仕上げすすぎ洗浄室１８、及び、洗浄水槽室１９は、それぞれ、搬送コンベア１１が通過する仕切板１４の開口（不図示）を通じて連通する構成となっている。このため、予備洗浄室１５、主洗浄室１６、すすぎ洗浄室１７、及び、洗浄水槽室１９内の高温の水蒸気を含んだ空気は、排気ファン６の動作により、仕上げすすぎ洗浄室１８、及び、排熱回収熱交換器５を通じて機外に排出される。排熱回収熱交換器５は、この高温の排気に含まれる熱を洗浄水に回収するための熱交換器であり、この排熱回収熱交換器５の入口側には、排気と熱交換する冷却水（洗浄水）を供給する冷却水管７が接続され、出口側には冷却に使用された冷却水を排出するための排出管８が接続されている。 An exhaust heat recovery heat exchanger 5 and an exhaust fan (exhaust means) 6 are disposed above the finish rinse cleaning chamber 18. When the exhaust fan 6 is operated, the air in the finish rinse cleaning chamber 18 is changed. It is discharged out of the machine through the exhaust heat recovery heat exchanger 5.
As described above, in the preliminary cleaning chamber 15, the main cleaning chamber 16, the rinse cleaning chamber 17, the finishing rinse cleaning chamber 18, and the cleaning water tank chamber 19, hot cleaning water is stored in the cleaning water tanks 21 to 61, respectively. Yes. In the preliminary cleaning chamber 15, the main cleaning chamber 16, the rinse cleaning chamber 17, and the final rinse cleaning chamber 18, since these high-temperature cleaning water is jetted through the spray nozzles 30 to 60, the preliminary cleaning chamber 15, The main cleaning chamber 16, the rinse cleaning chamber 17, the finish rinse cleaning chamber 18, and the cleaning water tank chamber 19 are filled with air containing high-temperature steam.
In the present embodiment, the preliminary cleaning chamber 15, the main cleaning chamber 16, the rinse cleaning chamber 17, the finish rinse cleaning chamber 18, and the cleaning water tank chamber 19 are each provided with an opening of the partition plate 14 through which the transfer conveyor 11 passes ( It is configured to communicate through (not shown). For this reason, air containing high-temperature water vapor in the preliminary cleaning chamber 15, the main cleaning chamber 16, the rinsing cleaning chamber 17, and the cleaning water tank chamber 19 is caused by the operation of the exhaust fan 6 to finish the rinsing cleaning chamber 18 and It is discharged out of the machine through the exhaust heat recovery heat exchanger 5. The exhaust heat recovery heat exchanger 5 is a heat exchanger for recovering heat contained in the high-temperature exhaust gas into washing water, and heat is exchanged with the exhaust on the inlet side of the exhaust heat recovery heat exchanger 5. A cooling water pipe 7 for supplying cooling water (washing water) is connected, and a discharge pipe 8 for discharging the cooling water used for cooling is connected to the outlet side.

ところで、本実施形態にかかる洗浄装置１は、予備洗浄室１５の洗浄水槽６１を除いたすべての洗浄水槽２１、３１、４１、５１にそれぞれ電気ヒータ２２、３２、４２、５２が設けられているが、これら電気ヒータで洗浄水を加熱する構成では、電力使用量が増大する。このため、本実施形態では、近年の省エネルギーの観点から、排気の熱を汲み上げて洗浄水を加熱するヒートポンプユニット７０と、このヒートポンプユニット７０に接続される貯湯タンクユニット１１０とを備える。   Incidentally, in the cleaning device 1 according to the present embodiment, the electric heaters 22, 32, 42, and 52 are provided in all the cleaning water tanks 21, 31, 41, and 51 except the cleaning water tank 61 of the preliminary cleaning chamber 15, respectively. However, in the configuration in which the cleaning water is heated with these electric heaters, the amount of power used increases. For this reason, in this embodiment, from the viewpoint of energy saving in recent years, a heat pump unit 70 that pumps up the heat of the exhaust and heats the washing water, and a hot water storage tank unit 110 that is connected to the heat pump unit 70 are provided.

ヒートポンプユニット７０は、排気の熱を冷媒に与える蒸発器７１と、この蒸発器７１で気化した冷媒を圧縮する圧縮機７２と、圧縮した冷媒と洗浄水とを熱交換して当該洗浄水を加熱するガスクーラー７３と、このガスクーラー７３で冷却された冷媒を減圧する膨張弁７４とを備え、これら各機器を冷媒配管で接続して構成されている。
また、貯湯タンクユニット１１０は、ヒートポンプユニット７０のガスクーラー７３で加熱された湯（洗浄水）を貯湯する貯湯タンク１１１と、この貯湯タンク１１１内の湯を送水するための送水ポンプ１１２とを備えている。そして、これらヒートポンプユニット７０と貯湯タンクユニット１１０とは温水供給回路１２０によって接続されている。 The heat pump unit 70 heats the washing water by exchanging heat between the evaporator 71 that gives the heat of the exhaust gas to the refrigerant, the compressor 72 that compresses the refrigerant vaporized by the evaporator 71, and the compressed refrigerant and the washing water. The gas cooler 73 and the expansion valve 74 for decompressing the refrigerant cooled by the gas cooler 73 are connected to each other by refrigerant piping.
The hot water storage tank unit 110 includes a hot water storage tank 111 for storing hot water (cleaning water) heated by the gas cooler 73 of the heat pump unit 70, and a water supply pump 112 for supplying hot water in the hot water storage tank 111. ing. The heat pump unit 70 and the hot water storage tank unit 110 are connected by a hot water supply circuit 120.

具体的には、温水供給回路１２０は、市水（水道水）を供給する給水管３と、この給水管３に接続される第１切替弁（切替弁）１２１と、この第１切替弁１２１とガスクーラー７３の冷媒出口側の端部とを接続する第１接続管１２２と、当該第１切替弁１２１と貯湯タンク１１１の底部とを接続する第１給湯管１１３と、貯湯タンク１１１の頂部から延びる第２給湯管１１４と、この第２給湯管１１４に接続される第２切替弁（切替弁）１２３と、この第２切替弁１２３とガスクーラー７３の冷媒入口側の端部とを接続する第２接続管１２４と、当該第２切替弁１２３と洗浄装置１とを接続する温水供給管１２５とを備える。
本構成では、第１切替弁１２１及び第２切替弁１２３は、それぞれ制御装置（不図示）の制御下で自動に流路を切り替える電動の三方弁であり、送水ポンプ１１２は上記した第１給湯管１１３上に設けられている。
また、蒸発器７１の冷媒出口側の端部には、洗浄装置１から流出した冷却水が導入される冷却水導入管７６が接続され、蒸発器７１の冷媒入口側の端部には、冷媒と熱交換して冷却された洗浄水を洗浄装置１に供給する冷却水供給管７８が接続されている。このように、本構成では、蒸発器７１及びガスクーラー７３には、冷媒の流れとは対向して市水(水道水)もしくは冷却水を流通させる構成としているため、蒸発器７１、ガスクーラー７３での熱交換効率の向上を図ることができる。
また、本実施形態では、冷媒として高圧側が超臨界圧力となる二酸化炭素（ＣＯ2）冷媒が使用されている。二酸化炭素冷媒は、オゾン破壊係数が０で、地球温暖化係数が１であるため、環境への負荷が小さく、毒性、可燃性がなく安全で安価である。 Specifically, the hot water supply circuit 120 includes a water supply pipe 3 for supplying city water (tap water), a first switching valve (switching valve) 121 connected to the water supply pipe 3, and the first switching valve 121. And a first connection pipe 122 that connects the end of the gas cooler 73 on the refrigerant outlet side, a first hot water supply pipe 113 that connects the first switching valve 121 and the bottom of the hot water storage tank 111, and the top of the hot water storage tank 111. A second hot water supply pipe 114 extending from the second hot water supply pipe 114, a second switching valve (switching valve) 123 connected to the second hot water supply pipe 114, and the second switching valve 123 and the end of the gas cooler 73 on the refrigerant inlet side. And a hot water supply pipe 125 that connects the second switching valve 123 and the cleaning device 1.
In this configuration, the first switching valve 121 and the second switching valve 123 are electric three-way valves that automatically switch the flow path under the control of a control device (not shown), and the water supply pump 112 is the first hot water supply described above. It is provided on the tube 113.
Further, a cooling water introduction pipe 76 into which the cooling water flowing out from the cleaning device 1 is introduced is connected to the end of the evaporator 71 on the refrigerant outlet side, and the refrigerant inlet side end of the evaporator 71 is connected to the refrigerant outlet side. A cooling water supply pipe 78 is connected to supply the cleaning water cooled by heat exchange to the cleaning device 1. Thus, in this structure, since it is set as the structure which distribute | circulates city water (tap water) or a cooling water to the evaporator 71 and the gas cooler 73 facing the flow of a refrigerant | coolant, the evaporator 71 and the gas cooler 73 are used. The heat exchange efficiency can be improved.
In the present embodiment, a carbon dioxide (CO 2 ) refrigerant having a supercritical pressure on the high pressure side is used as the refrigerant. Since the carbon dioxide refrigerant has an ozone depletion coefficient of 0 and a global warming coefficient of 1, the load on the environment is small, and it is safe and inexpensive without toxicity and flammability.

洗浄装置１は、ヒートポンプユニット７０を接続するためのバルブユニット８０を備える。このバルブユニット８０は、洗浄装置本体１０の下部に設けられた第１バルブ８１〜第５バルブ８５と、洗浄水の経路を切り替える第１三方バルブ８６〜第３三方バルブ８８とを備える。
第１バルブ８１〜第５バルブ８５は、手動もしくは制御装置（不図示）の制御下で自動に開閉する開閉弁である。第１バルブ８１〜第５バルブ８５は、それぞれ接続口を洗浄装置本体１０から露出させて並設されており、給水管３及びヒートポンプユニット７０との接続ポートとしての機能を有する。第１三方バルブ８６〜第３三方バルブ８８は、手動もしくは制御装置（不図示）の制御下で自動に流路を切り替える三方弁である。 The cleaning device 1 includes a valve unit 80 for connecting the heat pump unit 70. The valve unit 80 includes a first valve 81 to a fifth valve 85 provided at a lower portion of the cleaning apparatus main body 10, and a first three-way valve 86 to a third three-way valve 88 that switch a cleaning water path.
The first valve 81 to the fifth valve 85 are open / close valves that are opened and closed automatically or under the control of a control device (not shown). The first valve 81 to the fifth valve 85 are arranged side by side with their connection ports exposed from the cleaning apparatus body 10, and have a function as connection ports for the water supply pipe 3 and the heat pump unit 70. The first three-way valve 86 to the third three-way valve 88 are three-way valves that automatically switch the flow path manually or under the control of a control device (not shown).

第１バルブ８１の一端には、給水管３から分岐した第１給水分岐管３Ａが接続され、他端には、上記した各洗浄水槽２１〜６１に市水を供給する供給管（不図示）が接続されている。第２バルブ８２の一端には、ヒートポンプユニット７０の蒸発器７１から延びる冷却水導入管７６が接続されている。また、第２バルブ８２の他端は、循環ポンプ９５を有する接続管８９を介して第１三方バルブ８６に接続されている。
また、第３バルブ（給水バルブ）８３の一端には、給水管３から分岐した第２給水分岐管３Ｂが接続され、第４バルブ８４の一端には、ヒートポンプユニット７０の蒸発器７１から延びる冷却水供給管７８が接続されている。これら第３バルブ８３及び第４バルブ８４の他端には、それぞれ接続管９０，９１を介して第２三方バルブ８７が接続されている。 A first water supply branch pipe 3A branched from the water supply pipe 3 is connected to one end of the first valve 81, and a supply pipe (not shown) for supplying city water to each of the cleaning water tanks 21 to 61 is connected to the other end. Is connected. A cooling water introduction pipe 76 extending from the evaporator 71 of the heat pump unit 70 is connected to one end of the second valve 82. The other end of the second valve 82 is connected to the first three-way valve 86 via a connection pipe 89 having a circulation pump 95.
Further, a second water supply branch pipe 3B branched from the water supply pipe 3 is connected to one end of the third valve (water supply valve) 83, and a cooling extending from the evaporator 71 of the heat pump unit 70 is connected to one end of the fourth valve 84. A water supply pipe 78 is connected. A second three-way valve 87 is connected to the other ends of the third valve 83 and the fourth valve 84 via connecting pipes 90 and 91, respectively.

第５バルブ８５の一端にはヒートポンプユニット７０のガスクーラー７３から延びる温水供給管１２５が接続され、他端には接続管９２を介して第３三方バルブ８８に接続されている。
また、第１三方バルブ８６と第３三方バルブ８８とは接続管９３を介して接続されるとともに、第１三方バルブ８６には、排熱回収熱交換器５から延びる排出管８が接続されている。この第１三方バルブ８６は、排出管８と、上記した接続管８９もしくは接続管９３のいずれかを選択して接続可能に構成されており、排出管８を通じて洗浄水（冷却水）が接続管８９もしくは接続管９３のいずれかに流入するようになっている。
第２三方バルブ８７には、排熱回収熱交換器５から延びる冷却水管７が接続され、第３三方バルブ８８は接続管９４を介して洗浄水槽２１の側面部に接続されている。 A hot water supply pipe 125 extending from the gas cooler 73 of the heat pump unit 70 is connected to one end of the fifth valve 85, and the other end is connected to the third three-way valve 88 via a connection pipe 92.
Further, the first three-way valve 86 and the third three-way valve 88 are connected via a connection pipe 93, and the first three-way valve 86 is connected to a discharge pipe 8 extending from the exhaust heat recovery heat exchanger 5. Yes. The first three-way valve 86 is configured to be connectable to the discharge pipe 8 by selecting either the connection pipe 89 or the connection pipe 93 described above, and the cleaning water (cooling water) is connected to the connection pipe through the discharge pipe 8. 89 or the connecting pipe 93.
The cooling water pipe 7 extending from the exhaust heat recovery heat exchanger 5 is connected to the second three-way valve 87, and the third three-way valve 88 is connected to the side surface portion of the cleaning water tank 21 through the connection pipe 94.

さて、上記した構成では、ヒートポンプユニット７０で加温された洗浄水を用いて食器２の洗浄が行われている。ここで、食器２の洗浄が終了した場合、各洗浄水槽２１〜６１内に貯留された高温の洗浄水をそのまま放置すると、放熱により冷却するため、洗浄水の加温に要した熱が無駄となるという問題がある。
このため、本構成では、上記した第１切替弁１２１及び第２切替弁１２３を切り替えることにより、各洗浄水槽２１〜６１に貯留された高温の洗浄水が有する温熱を貯湯タンク１１１に回収可能に構成されている。 In the configuration described above, the tableware 2 is cleaned using the cleaning water heated by the heat pump unit 70. Here, when the cleaning of the tableware 2 is completed, if the high-temperature cleaning water stored in each of the cleaning water tanks 21 to 61 is left as it is, the heat required for heating the cleaning water is wasted because it is cooled by heat dissipation. There is a problem of becoming.
For this reason, in this configuration, by switching the first switching valve 121 and the second switching valve 123 described above, the hot heat of the high-temperature cleaning water stored in each of the cleaning water tanks 21 to 61 can be recovered in the hot water storage tank 111. It is configured.

次に、ヒートポンプユニット７０の動作について説明する。
（１）通常の給湯運転
ヒートポンプユニット７０を利用して温水を供給する場合、循環ポンプ９５が運転され、第３バルブ８３を除いた第１バルブ８１、第２バルブ８２、第４バルブ８４及び第５バルブ８５が開放されるとともに、第１三方バルブ８６〜第３三方バルブ８８はそれぞれ矢印ａの方向に水が流れるように切り替えられる。また、各電気ヒータは、ヒートポンプユニット７０で加温された各洗浄水槽内の洗浄水の温度が所定温度に達しない場合に作動し、各洗浄水槽内の洗浄水の温度が当該所定温度に達するまで補助的に加温する。
また、第１切替弁１２１及び第２切替弁１２３も矢印ａの方向に水が流れるように切り替えられ、貯湯タンクユニット１１０の送水ポンプ１１２は運転を停止した状態を保持する。 Next, the operation of the heat pump unit 70 will be described.
(1) Normal Hot Water Supply Operation When hot water is supplied using the heat pump unit 70, the circulation pump 95 is operated and the first valve 81, the second valve 82, the fourth valve 84, and the second valve excluding the third valve 83 are operated. While the five valve 85 is opened, the first three-way valve 86 to the third three-way valve 88 are switched so that water flows in the direction of the arrow a. Each electric heater operates when the temperature of the cleaning water in each cleaning water tank heated by the heat pump unit 70 does not reach a predetermined temperature, and the temperature of the cleaning water in each cleaning water tank reaches the predetermined temperature. Auxiliary heating until.
Moreover, the 1st switching valve 121 and the 2nd switching valve 123 are also switched so that water may flow in the direction of the arrow a, and the water supply pump 112 of the hot water storage tank unit 110 keeps the operation stopped state.

ヒートポンプユニット７０の運転が開始されると、循環ポンプ９５が運転され、冷却水が排熱回収熱交換器５と蒸発器７１との間を循環する。これによれば、冷却水管７を通じて、排熱回収熱交換器５に流入した冷却水は、排熱と熱交換して加熱され、排出管８、第１三方バルブ８６、接続管８９、第２バルブ８２、及び冷却水導入管７６を通じて、蒸発器７１に流入する。この蒸発器７１において、冷媒と熱交換することにより、冷媒が蒸発する際に冷却水の熱が冷媒に汲み上げられ、この冷却水は冷却されて蒸発器７１から排出される。そして、この冷却水は、冷却水供給管７８、第４バルブ８４、接続管９１、第２三方バルブ８７及び冷却水管７を通じて、再び、排熱回収熱交換器５に循環して流入する。
一方、市水（水道水）は、第１給水分岐管３Ａ及び第１バルブ８１を通じて、各洗浄水槽２１〜６１に補給されるとともに、給水管３、第１切替弁（切替弁）１２１及び第１接続管１２２を通じてガスクーラー７３に供給される。このガスクーラー７３では、排熱を汲み上げた高温の冷媒と熱交換することにより、市水は、高温（約８５℃）に加熱され、第２接続管１２４、第２切替弁１２３、温水供給管１２５、第５バルブ８５、接続管９２、第３三方バルブ８８及び接続管９４を通じて、洗浄水槽２１に流入し、この高温の洗浄水が上記した食器２の洗浄に用いられる。本実施形態では、上記した第２接続管１２４、温水供給管１２５、第５バルブ８５、接続管９２、第３三方バルブ８８及び接続管９４が、ガスクーラー７３で加熱した洗浄水を洗浄水槽２１〜６１に供給する第１流路１４０を構成する。 When the operation of the heat pump unit 70 is started, the circulation pump 95 is operated, and the cooling water circulates between the exhaust heat recovery heat exchanger 5 and the evaporator 71. According to this, the cooling water that has flowed into the exhaust heat recovery heat exchanger 5 through the cooling water pipe 7 is heated by exchanging heat with the exhaust heat, and the exhaust pipe 8, the first three-way valve 86, the connection pipe 89, the second It flows into the evaporator 71 through the valve 82 and the cooling water introduction pipe 76. In the evaporator 71, heat exchange with the refrigerant causes the heat of the cooling water to be pumped up to the refrigerant when the refrigerant evaporates, and the cooling water is cooled and discharged from the evaporator 71. Then, the cooling water circulates again into the exhaust heat recovery heat exchanger 5 through the cooling water supply pipe 78, the fourth valve 84, the connection pipe 91, the second three-way valve 87, and the cooling water pipe 7.
On the other hand, city water (tap water) is replenished to each of the washing water tanks 21 to 61 through the first water supply branch pipe 3A and the first valve 81, and the water supply pipe 3, the first switching valve (switching valve) 121 and the first water supply pipe. The gas is supplied to the gas cooler 73 through the one connection pipe 122. In this gas cooler 73, the city water is heated to a high temperature (about 85 ° C.) by exchanging heat with the high-temperature refrigerant pumped up from the exhaust heat, and the second connection pipe 124, the second switching valve 123, the hot water supply pipe 125, the fifth valve 85, the connecting pipe 92, the third three-way valve 88, and the connecting pipe 94 flow into the washing water tank 21, and this hot washing water is used for washing the tableware 2 described above. In the present embodiment, the second connecting pipe 124, the hot water supply pipe 125, the fifth valve 85, the connecting pipe 92, the third three-way valve 88, and the connecting pipe 94 are configured to wash the cleaning water heated by the gas cooler 73 into the cleaning water tank 21. -1st flow path 140 supplied to -61 is comprised.

（２）温熱回収運転
例えば、洗浄装置１の洗浄運転が終了した場合、各洗浄水槽２１〜６１には、それぞれ洗浄に使用された高温の洗浄水が貯留されている。このため、本実施形態では、各洗浄水槽２１〜６１の洗浄水が有する温熱を、排熱回収熱交換器５、及び、ヒートポンプユニット７０を介して、貯湯タンク１１１内に回収可能に構成されている。 具体的には、洗浄装置１の洗浄運転が終了した場合には、循環ポンプ９５の運転を継続するとともに、第１バルブ８１〜第５バルブ８５、及び、第１三方バルブ８６〜第３三方バルブ８８の開閉状態がそのまま維持される。ここで、各電気ヒータは、無駄な電力消費を防止するため、各洗浄水槽内の洗浄水温度に関わらず動作を停止する。
また、ヒートポンプユニット７０及び排気ファン６の運転を継続するとともに、第１切替弁１２１及び第２切替弁１２３を矢印ｂの方向に水が流れるように切り替え、貯湯タンクユニット１１０の送水ポンプ１１２の運転を開始する。 (2) Thermal recovery operation For example, when the cleaning operation of the cleaning device 1 is completed, the high temperature cleaning water used for cleaning is stored in each of the cleaning water tanks 21 to 61. For this reason, in this embodiment, it is comprised so that the heat which washing water of each washing water tanks 21-61 has can be collected in hot water storage tank 111 via exhaust heat recovery heat exchanger 5 and heat pump unit 70. Yes. Specifically, when the cleaning operation of the cleaning device 1 is finished, the operation of the circulation pump 95 is continued, and the first valve 81 to the fifth valve 85 and the first three-way valve 86 to the third three-way valve are continued. The open / closed state of 88 is maintained as it is. Here, each electric heater stops operation regardless of the washing water temperature in each washing water tank in order to prevent wasteful power consumption.
Further, the operation of the heat pump unit 70 and the exhaust fan 6 is continued, and the first switching valve 121 and the second switching valve 123 are switched so that water flows in the direction of the arrow b, and the operation of the water supply pump 112 of the hot water storage tank unit 110 is performed. To start.

すると、排熱回収熱交換器５に流入した冷却水は、排熱と熱交換して加熱された後、排出管８、第１三方バルブ８６、接続管８９、第２バルブ８２、及び冷却水導入管７６を通じて、蒸発器７１に流入する。この蒸発器７１において、冷媒と熱交換することにより、冷媒が蒸発する際に冷却水の熱が冷媒に汲み上げられ、この冷却水は冷却されて蒸発器７１から排出される。そして、この冷却水は、冷却水供給管７８、第４バルブ８４、接続管９１、第２三方バルブ８７及び冷却水管７を通じて、再び、排熱回収熱交換器５に循環して流入する。
一方、貯湯タンク１１１内に予め貯留された市水（水道水）は、送水ポンプ１１２の運転により、第１給湯管１１３、第１切替弁（切替弁）１２１及び第１接続管１２２を通じてガスクーラー７３に供給される。このガスクーラー７３では、市水は、排熱を汲み上げた高温の冷媒と熱交換することにより、高温（約８５℃）に加熱され、第２接続管１２４、第２切替弁１２３及び第２給湯管１１４を通じて、貯湯タンク１１１内に供給される。このように、貯湯タンク１１１とガスクーラー７３との間を循環させることにより、各洗浄水槽２１〜６１内の洗浄水が有する温熱は、貯湯タンク１１１内の市水（洗浄水）に回収され、貯湯タンク１１１内に貯湯される。本実施形態では、第２接続管１２４、及び第２給湯管１１４がガスクーラー７３で加熱した洗浄水を洗浄水槽２１〜６１に供給する第２流路１５０を構成する。そして、上記した第１流路１４０及び第２流路１５０の分岐点となる第２接続管１２４に第２切替弁１２３を設けたため、蒸発器７１で汲み上げた温熱を容易に貯湯タンク１１１内に貯めることができる。
また、本実施形態では、予備洗浄室１５、主洗浄室１６、すすぎ洗浄室１７、仕上げすすぎ洗浄室１８、及び、洗浄水槽室１９は、それぞれ、搬送コンベア１１が通過する仕切板１４の開口（不図示）を通じて連通する構成となっている。各洗浄水槽２１〜６１内の洗浄水は、排熱回収熱交換器５で冷却水に熱回収されることにより温度が低下するため、当該熱回収が終了した後に排出することが望ましい。 また、熱回収が終了した場合には、ヒートポンプユニット７０、排気ファン６、循環ポンプ９５及び送水ポンプ１１２の運転を終了する。 Then, the cooling water that has flowed into the exhaust heat recovery heat exchanger 5 is heated by exchanging heat with the exhaust heat, and then the exhaust pipe 8, the first three-way valve 86, the connection pipe 89, the second valve 82, and the cooling water. It flows into the evaporator 71 through the introduction pipe 76. In the evaporator 71, heat exchange with the refrigerant causes the heat of the cooling water to be pumped up to the refrigerant when the refrigerant evaporates, and the cooling water is cooled and discharged from the evaporator 71. Then, the cooling water circulates again into the exhaust heat recovery heat exchanger 5 through the cooling water supply pipe 78, the fourth valve 84, the connection pipe 91, the second three-way valve 87, and the cooling water pipe 7.
On the other hand, city water (tap water) stored in advance in the hot water storage tank 111 is gas-cooled through the first hot water supply pipe 113, the first switching valve (switching valve) 121, and the first connection pipe 122 by the operation of the water supply pump 112. 73. In this gas cooler 73, the city water is heated to a high temperature (about 85 ° C.) by exchanging heat with the high-temperature refrigerant pumped up from the exhaust heat, and the second connection pipe 124, the second switching valve 123, and the second hot water supply are heated. It is supplied into the hot water storage tank 111 through the pipe 114. In this way, by circulating between the hot water storage tank 111 and the gas cooler 73, the thermal heat of the cleaning water in each of the cleaning water tanks 21 to 61 is recovered in city water (cleaning water) in the hot water storage tank 111, Hot water is stored in the hot water storage tank 111. In the present embodiment, the second connection pipe 124 and the second hot water supply pipe 114 constitute the second flow path 150 that supplies the cleaning water heated by the gas cooler 73 to the cleaning water tanks 21 to 61. And since the 2nd switching valve 123 was provided in the 2nd connection pipe 124 used as the branching point of the above-mentioned 1st flow path 140 and the 2nd flow path 150, the warm heat pumped up by the evaporator 71 is easily in the hot water storage tank 111. Can be saved.
In the present embodiment, the preliminary cleaning chamber 15, the main cleaning chamber 16, the rinse cleaning chamber 17, the finish rinse cleaning chamber 18, and the cleaning water tank chamber 19 are each provided with an opening of the partition plate 14 through which the transfer conveyor 11 passes ( It is configured to communicate through (not shown). Since the temperature of the cleaning water in each of the cleaning water tanks 21 to 61 is reduced by the heat recovery to the cooling water by the exhaust heat recovery heat exchanger 5, it is desirable to discharge after the heat recovery is completed. Further, when the heat recovery is finished, the operation of the heat pump unit 70, the exhaust fan 6, the circulation pump 95, and the water pump 112 is finished.

（３）温水供給運転
翌日等において、洗浄装置１の洗浄運転を開始する場合、ヒートポンプユニット７０、排気ファン６、循環ポンプ９５及び送水ポンプ１１２の運転を停止した状態で、第１切替弁１２１及び第２切替弁１２３を矢印ｃの方向に水が流れるように切り替える。
すると、給水圧により、市水が給水管３、第１切替弁１２１及び第１給湯管１１３を通じて貯湯タンク１１１内に底部から供給される。これにより、貯湯タンク１１１の頂部側に貯留された高温の湯（洗浄水）が貯湯タンク１１１から排出され、第２給湯管１１４、第２切替弁１２３、温水供給管１２５、第５バルブ８５、接続管９２、第３三方バルブ８８及び接続管９４を通じて、洗浄水槽２１に流入する。
この構成では、洗浄水槽２１内に高温の市水（洗浄水）を素早く供給することができるため、低温の市水をヒートポンプユニット７０や電気ヒータ２２を用いて加温する構成と比べて、洗浄装置１が洗浄運転可能となるまでの立ち上げ時間を大幅に短縮することができる。 (3) Warm water supply operation When the cleaning operation of the cleaning device 1 is started on the next day, etc., the first switching valve 121 and the heat pump unit 70, the exhaust fan 6, the circulation pump 95, and the water pump 112 are stopped. The second switching valve 123 is switched so that water flows in the direction of the arrow c.
Then, city water is supplied from the bottom into the hot water storage tank 111 through the water supply pipe 3, the first switching valve 121 and the first hot water supply pipe 113 due to the supply water pressure. Thereby, the hot water (washing water) stored on the top side of the hot water storage tank 111 is discharged from the hot water storage tank 111, the second hot water supply pipe 114, the second switching valve 123, the hot water supply pipe 125, the fifth valve 85, It flows into the washing water tank 21 through the connecting pipe 92, the third three-way valve 88 and the connecting pipe 94.
In this configuration, since hot city water (washing water) can be quickly supplied into the washing water tank 21, compared with a configuration in which low temperature city water is heated using the heat pump unit 70 or the electric heater 22. The start-up time until the apparatus 1 can perform the cleaning operation can be greatly shortened.

以上、説明したように、本実施形態によれば、食器２を搬送する搬送コンベア１１と、加温された洗浄水を貯留する洗浄水槽２１と、搬送された食器２に洗浄水を噴射して当該食器２を洗浄するスプレーノズル５０と、洗浄水の水蒸気を含んだ空気を排気する排気ファン６とを備えた洗浄装置１において、排気の熱を汲み上げて洗浄水を加温するヒートポンプユニット７０と、このヒートポンプユニット７０に接続される貯湯タンク１１１とを備え、食器２の洗浄が終了した場合、各洗浄水槽２１〜６１内の温熱をヒートポンプユニット７０で汲み上げ、貯湯タンク１１１に回収するよう洗浄水の流れを切り替える第１切替弁１２１及び第２切替弁１２３を備えたため、洗浄水槽２１で洗浄水が放置された結果、洗浄水が放熱により冷却されることが防止され、当該洗浄水が有する熱の有効利用を図ることができる。   As described above, according to the present embodiment, the transport conveyor 11 that transports the tableware 2, the cleaning water tank 21 that stores the heated cleaning water, and the cleaning water jetted onto the transported tableware 2. A heat pump unit 70 that pumps up the heat of the exhaust gas and heats the cleaning water in the cleaning device 1 including the spray nozzle 50 that cleans the tableware 2 and the exhaust fan 6 that exhausts air containing water vapor of the cleaning water; The hot water storage tank 111 connected to the heat pump unit 70 is provided, and when the cleaning of the tableware 2 is completed, the hot water in each of the cleaning water tanks 21 to 61 is pumped up by the heat pump unit 70 and recovered in the hot water storage tank 111. Since the first switching valve 121 and the second switching valve 123 for switching the flow of the cleaning water are provided, the cleaning water is cooled by heat dissipation as a result of the cleaning water being left in the cleaning water tank 21. It is prevented, it is possible to effectively utilize the heat the wash water has.

また、本実施形態によれば、第１切替弁１２１及び第２切替弁１２３は、食器２の洗浄を開始する場合に、貯湯タンク１１１内の洗浄水を洗浄水槽２１に導くように切り替えられるため、洗浄水槽２１内に高温の市水（洗浄水）を素早く供給することができるため、低温の市水をヒートポンプユニット７０や電気ヒータ２２を用いて加温する構成と比べて、洗浄装置１が洗浄運転可能となるまでの立ち上げ時間を大幅に短縮することができる。
また、本実施形態によれば、ヒートポンプユニット７０は、排気の熱を冷媒に与える蒸発器７１と、この蒸発器７１で気化した冷媒を圧縮する圧縮機７２と、圧縮した冷媒と洗浄水とを熱交換して当該洗浄水を加熱するガスクーラー７３とを備え、このガスクーラー７３には、該ガスクーラー７３で加熱した洗浄水を洗浄水槽２１〜６１に供給する第１流路１４０と、該洗浄水を貯湯タンク１１１に供給する第２流路１５０とが並列に接続され、これら各流路の分岐点となる第２接続管１２４に第２切替弁１２３を設けたため、第２切替弁１２３を切換えるといった動作で、蒸発器７１で汲み上げた温熱を容易に貯湯タンク１１１内に貯めることができる。 In addition, according to the present embodiment, the first switching valve 121 and the second switching valve 123 are switched so as to guide the cleaning water in the hot water storage tank 111 to the cleaning water tank 21 when the cleaning of the tableware 2 is started. Since the high-temperature city water (cleaning water) can be quickly supplied into the cleaning water tank 21, the cleaning apparatus 1 has a configuration that heats the low-temperature city water using the heat pump unit 70 or the electric heater 22. The start-up time until the cleaning operation becomes possible can be greatly shortened.
Further, according to the present embodiment, the heat pump unit 70 includes the evaporator 71 that gives the heat of the exhaust to the refrigerant, the compressor 72 that compresses the refrigerant vaporized by the evaporator 71, the compressed refrigerant and the wash water. A gas cooler 73 that heat-exchanges and heats the cleaning water. The gas cooler 73 includes a first flow path 140 that supplies the cleaning water heated by the gas cooler 73 to the cleaning water tanks 21 to 61; Since the second flow path 150 for supplying the wash water to the hot water storage tank 111 is connected in parallel, and the second switching valve 123 is provided in the second connection pipe 124 serving as a branch point of each flow path, the second switching valve 123 is provided. By the operation of switching between, the heat pumped up by the evaporator 71 can be easily stored in the hot water storage tank 111.

以上、本発明の一実施の形態について説明したが、本発明は、これに限定されるものではない。ヒートポンプユニット７０と貯湯タンクユニット１１０とを接続する温水供給回路の構成は、適宜変更することが可能であり、例えば、図２に示すように、貯湯タンク１１１の底部と送水ポンプ１１２との間で第１給湯管１１３に別途給水管１３０を接続するとともに、貯湯タンク１１１の頂部と第２切替弁１２３との間で、第２給湯管１１４に第３給湯管１３１を接続し、この第３給湯管１３１の先端を温水供給管１２５に接続する構成としても良い。
この構成では、温水供給運転をする場合に、ヒートポンプユニット７０、排気ファン６、循環ポンプ９５及び送水ポンプ１１２の運転を停止した状態で、給水管１３０から給水を開始すると、市水が給水管１３０を通じて貯湯タンク１１１内に底部から供給される。これにより、貯湯タンク１１１の頂部側に貯留された高温の湯（洗浄水）が貯湯タンク１１１から排出され、第２給湯管１１４、第３給湯管１３１、温水供給管１２５、第５バルブ８５、接続管９２、第３三方バルブ８８及び接続管９４を通じて、洗浄水槽２１に高温の洗浄水を供給することができる。 Although one embodiment of the present invention has been described above, the present invention is not limited to this. The configuration of the hot water supply circuit that connects the heat pump unit 70 and the hot water storage tank unit 110 can be changed as appropriate, for example, between the bottom of the hot water storage tank 111 and the water supply pump 112 as shown in FIG. A separate water supply pipe 130 is connected to the first hot water supply pipe 113, and a third hot water supply pipe 131 is connected to the second hot water supply pipe 114 between the top of the hot water storage tank 111 and the second switching valve 123. It is good also as a structure which connects the front-end | tip of the pipe | tube 131 to the warm water supply pipe | tube 125. FIG.
In this configuration, when hot water supply operation is performed, when water supply is started from the water supply pipe 130 in a state where the operation of the heat pump unit 70, the exhaust fan 6, the circulation pump 95, and the water supply pump 112 is stopped, the city water is supplied to the water supply pipe 130. The hot water storage tank 111 is supplied from the bottom. Thereby, hot hot water (washing water) stored on the top side of the hot water storage tank 111 is discharged from the hot water storage tank 111, the second hot water supply pipe 114, the third hot water supply pipe 131, the hot water supply pipe 125, the fifth valve 85, High-temperature cleaning water can be supplied to the cleaning water tank 21 through the connection pipe 92, the third three-way valve 88, and the connection pipe 94.

１、１００ 洗浄装置
２ 食器（被洗浄物）
３ 給水管
５ 排熱回収熱交換器
７ 冷却水管
８ 排出管
１０ 洗浄装置本体
１０Ａ 上面部
１１ 搬送コンベア（搬送手段）
１２ 投入口
１３ 取出口
１４ 仕切板
１５ 予備洗浄室
１６ 主洗浄室
１７ すすぎ洗浄室
１８ 仕上げすすぎ洗浄室
１９ 洗浄水槽室
２１、３１、４１、５１、６１ 洗浄水槽
２２、３２、４２、５２、６２ 電気ヒータ
２３、３３、４３、５３、６３ 洗浄水配管
２４、３４、４４、５４、６４ 送水ポンプ
３０、４０、５０、６０、７０ スプレーノズル（洗浄手段）
７０ ヒートポンプユニット（ヒートポンプ手段）
７０Ａ 筐体
７１ 蒸発器
７２ 圧縮機
７３ ガスクーラー
７４ 膨張弁
７５ 加温水供給管
７６ 冷却水導入管
７８ 冷却水供給管
１１０ 貯湯タンクユニット
１１１ 貯湯タンク
１１２ 送水ポンプ
１１３ 第１給湯管
１１４ 第２給湯管
１２０ 温水供給回路
１２１ 第１切替弁（切替弁）
１２２ 第１接続管
１２３ 第２切替弁（切替弁）
１２４ 第２接続管
１２５ 温水供給管
１４０ 第１流路
１５０ 第２流路 1,100 Cleaning device 2 Tableware (object to be cleaned)
DESCRIPTION OF SYMBOLS 3 Water supply pipe 5 Waste heat recovery heat exchanger 7 Cooling water pipe 8 Discharge pipe 10 Cleaning apparatus main body 10A Upper surface part 11 Conveyor (conveyance means)
DESCRIPTION OF SYMBOLS 12 Input port 13 Outlet 14 Partition plate 15 Preliminary washing room 16 Main washing room 17 Rinse washing room 18 Finish rinse room 19 Washing water tank room 21, 31, 41, 51, 61 Washing water tank 22, 32, 42, 52, 62 Electric heater 23, 33, 43, 53, 63 Washing water piping 24, 34, 44, 54, 64 Water pump 30, 40, 50, 60, 70 Spray nozzle (cleaning means)
70 Heat pump unit (heat pump means)
70A Housing 71 Evaporator 72 Compressor 73 Gas cooler 74 Expansion valve 75 Heated water supply pipe 76 Cooling water introduction pipe 78 Cooling water supply pipe 110 Hot water storage tank unit 111 Hot water storage tank 112 Water supply pump 113 First hot water supply pipe 114 Second hot water supply pipe 120 Hot water supply circuit 121 First switching valve (switching valve)
122 1st connection pipe 123 2nd switching valve (switching valve)
124 Second connection pipe 125 Hot water supply pipe 140 First flow path 150 Second flow path

Claims (3)

被洗浄物を搬送する搬送手段と、加温された洗浄水を貯留する洗浄水槽と、搬送された前記被洗浄物に前記洗浄水を噴射して当該被洗浄物を洗浄する洗浄手段と、前記洗浄水の水蒸気を含んだ空気を排気する排気手段とを備えた洗浄装置において、
排気の熱を汲み上げて前記洗浄水を加温するヒートポンプ手段と、このヒートポンプ手段に接続される貯湯タンクとを備え、
前記被洗浄物の洗浄が終了した場合、前記洗浄水槽内の温熱を前記ヒートポンプ手段で汲み上げ、前記貯湯タンクに回収するよう前記洗浄水の流れを切り替える切替弁を備えたことを特徴とする洗浄装置。 Conveying means for conveying an object to be cleaned, a cleaning water tank for storing heated cleaning water, a cleaning means for injecting the cleaning water onto the conveyed object to be cleaned and cleaning the object to be cleaned, In the cleaning apparatus provided with exhaust means for exhausting air containing water vapor of the cleaning water,
A heat pump means for pumping up the heat of the exhaust and heating the washing water; and a hot water storage tank connected to the heat pump means,
A cleaning apparatus comprising a switching valve that switches the flow of the cleaning water so that the heat in the cleaning water tank is pumped up by the heat pump means when the cleaning of the object to be cleaned is completed and recovered in the hot water storage tank . 前記切替弁は、前記被洗浄物の洗浄を開始する場合に、前記貯湯タンク内の前記洗浄水を前記洗浄水槽に導くように切り替えられることを特徴とする請求項１に記載の洗浄装置。   The cleaning device according to claim 1, wherein the switching valve is switched to guide the cleaning water in the hot water storage tank to the cleaning water tank when the cleaning of the object to be cleaned is started. 前記ヒートポンプ手段は、前記排気の熱を冷媒に与える蒸発器と、この蒸発器で気化した冷媒を圧縮する圧縮機と、圧縮した冷媒と洗浄水とを熱交換して当該洗浄水を加熱するガスクーラーとを備え、このガスクーラーには、該ガスクーラーで加熱した洗浄水を前記洗浄水槽に供給する第１流路と、該洗浄水を前記貯湯タンクに供給する第２流路とが並列に接続され、これら流路の分岐点に前記切替弁が設けられたことを特徴とする請求項１または２に記載の洗浄装置。   The heat pump means includes an evaporator that gives heat of the exhaust to the refrigerant, a compressor that compresses the refrigerant vaporized by the evaporator, and a gas that heats the washing water by exchanging heat between the compressed refrigerant and the washing water. The gas cooler includes a first flow path for supplying cleaning water heated by the gas cooler to the cleaning water tank, and a second flow path for supplying the cleaning water to the hot water storage tank in parallel. The cleaning apparatus according to claim 1, wherein the switching valve is connected and the switching valve is provided at a branch point of the flow paths.
JP2013063683A 2013-03-26 2013-03-26 Cleaning device Active JP6170316B2 (en)

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CN109516231A (en) * 2017-09-16 2019-03-26 许春辉 The automatic controllable system of falling case for tableware cleaning equipment
CN111380302A (en) * 2020-04-12 2020-07-07 麦卡尼食品设备(中山)有限公司 Instant freezer with automatic cleaning system
CN114129111A (en) * 2020-09-04 2022-03-04 浙江喜涮涮智能科技有限公司 Full-automatic tableware slagging-off washs drying machine

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CN111380302A (en) * 2020-04-12 2020-07-07 麦卡尼食品设备(中山)有限公司 Instant freezer with automatic cleaning system
CN114129111A (en) * 2020-09-04 2022-03-04 浙江喜涮涮智能科技有限公司 Full-automatic tableware slagging-off washs drying machine
CN114129111B (en) * 2020-09-04 2024-01-12 浙江喜涮涮智能科技有限公司 Full-automatic tableware deslagging, cleaning and drying integrated machine

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