JP2010057756A - Dishwasher using electrolytically generated alkaline water as washing water - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a constitution capable of carrying out neutralizing process of electrolytically generated acid water generated in synchronization with electrolytically generated alkaline water in a dishwasher using electrolytically generated alkaline water generated in an electrolyzed water generating device of electrolyzing type with a separating membrane as washing water. <P>SOLUTION: The dishwasher A1 has an alkaline water feeding tubular path 32a for feeding the electrolytically generated alkaline water generated in an electrolytic water generating device B1 into a washing water tank 11 and an introducing tubular path 34b for introducing the electrolytically generated acid water generated in an electrolytic water generating device A1 to a neutralization tank C1, neutralizes the electrolytically generated acid water with a neutralizing agent or the electrolytically generated alkaline water stored in a neutralization tank C1 and drains the same. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a dishwasher using electrolytically generated alkaline water generated by a diaphragm electrolysis type electrolyzed water generating apparatus as cleaning water.

  As one type of dishwasher, there is a dishwasher using electrolytically generated alkaline water generated by a diaphragm electrolysis type electrolyzed water generator as cleaning water. The tableware washing machine of this type pays attention to the fact that the electrolyzed alkaline water produced in the cathode side electrolysis chamber of the electrolyzed water generator of the diaphragm electrolysis type has a high cleaning action, and uses the electrolyzed alkaline water as a general purpose. Many dishwashers of this type have already been proposed (see Patent Documents 1 to 5).

  The dishwashers proposed in these Patent Documents 1 to 4 wash the electrolytically generated alkaline water generated in the cathode side electrolysis chamber of the diaphragm electrolyzer constituting the diaphragm electrolysis type electrolyzed water generator. The water is provided with alkaline water supply means for supplying electrolytically generated alkaline water, and the dishes are washed with alkali using electrolytically generated alkaline water as washing water, and then rinsed with fresh water as necessary.

Moreover, the dishwasher proposed in Patent Document 5 includes an alkaline water supply means for supplying electrolytically generated alkaline water generated in the diaphragm electrolyzer and an acidic water supply means for supplying electrolytically generated acidic water. In addition, a cleaning method is adopted in which the dishes are washed with alkali using electrolytically generated alkaline water as washing water, and then acid washed with electrolytically generated acidic water as washing water. A cleaning method is adopted in which acid cleaning is performed using acidic water as cleaning water, and then alkali cleaning is performed using electrolytically generated alkaline water as cleaning water. In the acid cleaning of these cleaning modes, it is intended to enhance the cleaning effect of the tableware by causing the acid to act on the surface of the tableware and the contaminants to extract the cleaning power of the cleaning water.
JP-A-10-57297 JP 2003-38409 A JP 2003-284665 A JP 2004-188776 A JP 2006-212309 A

  In the dishwasher of this type, since it is common to use dilute saline water as electrolyzed water in the electrolysis operation of the diaphragm electrolysis type electrolyzed water generator that is the supply source of electrolyzed alkaline water, The electrolytically generated acidic water generated in synchronism with the generation of electrolytically generated alkaline water during diaphragm electrolysis contains a substantial amount of volatile chlorine components. For this reason, when the electrolytically generated acid water is carelessly drained, volatile chlorine components are scattered in the air in the state of chlorine gas during the drainage, and the metal of the equipment installed around There is a risk of generating rust on the part.

  For this reason, it is necessary to pay sufficient attention to the drainage of the electrolytically generated acidic water that is generated, and it is common to employ a means for neutralizing the electrolytically generated acidic water during drainage. However, in this type of dishwasher, the actual situation is that no specific proposal has been made for neutralizing means for neutralizing the electrolytically generated acidic water generated by the electrolyzed water generating apparatus employed. is there. Accordingly, an object of the present invention is to provide a neutralizing means that can be suitably employed in the dishwasher having the above-described formation.

  The present invention relates to a dishwasher using electrolytically generated alkaline water as washing water. A dishwasher to which the present invention is applied is a dishwasher using electrolytically generated alkaline water generated by a diaphragm electrolysis type electrolyzed water generating device as cleaning water, which is supplied to a cleaning water tank. Washing of a type having a washing process using electrolytically generated alkaline water diluted with water contained in a washing water tank as a washing water and a rinsing process using water contained in the rinsing water tank as a rinsing water Machine.

  Thus, the dishwasher according to the present invention includes an alkaline water supply pipe for supplying the electrolytically generated alkaline water generated by the electrolytic water generator to the cleaning water tank, and the electrolytic water generator It has an introduction pipe for introducing the generated electrolytically generated acidic water into the neutralization tank, and the neutralizing tank contains a neutralizing agent for neutralizing the electrolytically generated acidic water. is there.

  As the neutralizer stored in the neutralization tank, a neutralizer mainly composed of calcium, a neutralizer mainly composed of magnesium, a neutralizer mainly composed of silica, activated carbon, caustic soda and the like are employed. However, it is preferable to employ a neutralizing agent mainly composed of calcium.

  In the dishwasher which concerns on this invention, it can be set as the structure provided with the drain pipe which has a drain valve which drains the washing water in the said washing water tank to the said neutralization tank. Moreover, about the said neutralization tank, as a structure provided with the exhaust pipe which exhausts the gas generated in the tank of the neutralization tank, the said exhaust pipe adsorb | sucks harmful components in the said gas, such as activated carbon. An adsorbent can be accommodated.

  In the dishwasher according to the present invention, the dishwasher includes a cleaning unit that cleans the scale generated in the cleaning water circuit by acid cleaning, and the cleaning unit is generated by the electrolyzed water generation stage device. In the case where the acid water supply pipe for supplying the electrolytically generated acidic water to be supplied to the washing water tank is a main component, the drainage that drains the electrolytically generated acidic water in the washing water tank to the neutralization tank It can be set as the structure provided with the drainage pipe line which has a valve.

  In the dishwasher having such a configuration, while the electrolytically generated alkaline water is stored in the washing water tank, means for introducing the electrolytically generated acidic water into the neutralization tank can be taken, and the electrolytically generated acidic water is washed. During storage in the water tank, means for introducing electrolytically generated alkaline water into the neutralization tank can be employed. In addition, when the neutralization tank is empty, a cleaning and cleaning operation is performed to supply electrolytically generated acidic water to the cleaning water tank and to introduce electrolytically generated alkaline water into the neutralizing tank Can be taken.

  The dishwasher according to the present invention includes an introduction pipe for introducing the electrolytically generated acidic water generated by the electrolytic water generator into the neutralization tank. For this reason, during the electrolysis operation of the electrolyzed water generator, the electrolyzed acidic water generated in synchronism with the electrolyzed alkaline water is introduced into the neutralization tank through the introduction pipe and neutralized with the neutralizing agent. And can be drained in a state where the electrolytically generated acidic water is neutralized.

  Therefore, the generation of chlorine gas from the electrolytically generated acidic water during drainage is completely or largely suppressed, and the generation of rust at the metal parts of the devices arranged around can be prevented. In this case, various neutralizing agents can be employed as the neutralizing agent, but it is preferable to employ a neutralizing agent mainly composed of calcium, such as calcium carbonate and cryolite. Calcium carbonate, cold water stone, and the like are advantageous in that they are inexpensive and very safe in handling.

  In addition, when the dishwasher is provided with a drain pipe having a drain valve for draining the wash water in the wash water tank to the neutralization tank, the water is drained from the wash water tank when the neutralizer is consumed. Wash water (electrolytically generated alkaline water) functions as a neutralizing agent. For this reason, replenishment after consumption of the neutralizing agent is unnecessary, which is extremely advantageous economically.

  Further, in a dishwasher having a drain pipe having a drain valve for draining the cleaning water in the cleaning water tank to the neutralization tank, the electrolytically generated acidic water is stored while the electrolytically generated alkaline water is stored in the cleaning water tank. A means for introducing the electrolytically generated acidic water into the neutralizing tank can be taken while the electrolytically generated acidic water is stored in the washing water tank. Further, when the neutralization tank is empty, a cleaning cleaning operation is performed to supply electrolytically generated acidic water into the cleaning water tank and to introduce electrolytically generated alkaline water into the neutralizing tank. Measures can be taken.

  The dishwasher according to the present invention is a dishwasher that uses electrolytically generated alkaline water generated by an electrolyzed water generating apparatus of the diaphragm electrolysis type as cleaning water. FIG. 1 schematically shows a first embodiment of a dishwasher according to the present invention. The dishwasher A1 according to this embodiment uses a diaphragm electrolysis-type electrolyzed water generator B1 installed in the kitchen independently of the dishwasher A1, and the dishwasher A1 itself is a dedicated electrolyzed water. Compared to a dishwasher equipped with a generating device, it is inexpensive and easy to use without impeding the use of each electrolyzed water produced by the electrolyzed water producing device B1 in a wide field.

  The dishwasher A1 includes a washing process using electrolytically generated alkaline water diluted with water (washing water, rinsing water, etc.) contained in a washing water tank, and a booster that is a rinsing water tank. The washing | cleaning aspect which consists of the rinse process which uses the water accommodated in this as rinse water is taken.

  The dishwasher A1 shown in FIG. 1 is connected to the electrolyzed water generator B1 of the diaphragm membrane electrolysis type installed independently through the supply line of the electrolyzed water. Except for the connection relationship with the device B1 and the operation control relationship with the electrolyzed water generation device B1, the configuration itself is known. The configuration of the electrolyzed water generator B1 is also well known.

  The dishwasher A1 includes a washing water tank 11 at the bottom of the washing chamber formed in the case body, and a washing nozzle 12 is disposed above the washing water tank 11 at a predetermined height, and a rinsing nozzle 13 is disposed above the washing nozzle 12. A storage shelf 14 for storing tableware is installed between the cleaning water tank 11 and the cleaning nozzle 12. The dishwasher A1 includes a booster 15 that is a rinse water tank installed outside the case body.

  The washing water tank 11 that constitutes the dishwasher A1 includes an overflow pipe 11b that overflows the washing water in the tank body 11a to maintain a predetermined water level, and a water level sensor 11c on the side of the tank body 11a. In addition, an electric heater 11d, which is a heating means for holding the cleaning water in the tank body 11a in warm water, is disposed at the bottom of the tank body 11a. A drain pipe 11e is connected to the bottom of the tank body 11a, and a drain valve 11f is interposed in the middle of the drain pipe 11e. The drain pipe 11e functions to drain almost all of the cleaning water in the tank body 11a to the neutralization tank C1 by opening the drain valve 11f.

  The cleaning water stored in the cleaning water tank 11 is used in the cleaning process, and the strongly alkaline electrolytically generated alkaline water supplied from the electrolytic water generator B1 is stored in the cleaning water tank 11. It is prepared by diluting with water (washing water, rinsing water, etc.). In the washing water tank 11, the set predetermined volume of washing water is accommodated by the action of the overflow pipe 11b and the water level sensor 11c, and is maintained at the set predetermined water level.

  The booster 15 is a kettle-type rinse water tank, and includes a heater at the bottom inside the tank. Tap water is supplied into the booster 15 through the water supply line 23 and the water supply valve 24, and the water supplied into the booster 15 is heated when the water level exceeds a certain level, and is set to a predetermined value. It becomes hot water of temperature.

  In the operation of the washing process in the dishwasher A1, the washing pump 16 is driven. The cleaning water in the tank main body 11 a of the cleaning water tank 11 is supplied to the cleaning nozzle 12 through the supply pipe 21 by the driving of the cleaning pump 16 and is jetted from the cleaning nozzle 12. The sprayed cleaning water cleans the tableware stored in the storage shelf 14 and then falls into the tank body 11 a of the cleaning water tank 11. The cleaning pump 16 circulates cleaning water through the supply pipe 21 and the cleaning nozzle 12 for a predetermined time, and promotes cleaning of the dishes in the storage shelf 14 during this period. In the embodiment of the dishwasher according to the present invention, the operation of the rinsing process is performed following the end of the operation of the cleaning process. The cleaning operation is controlled by a control device (not shown).

  In the operation of the rinsing process in the dishwasher A1, the rinsing water (hot water) accommodated in the booster 15 is supplied to the rinsing nozzle 13 through the supply line 22 by driving the rinsing pump 17. Injected from the nozzle 13. The rinse water sprayed from the rinse nozzle 13 rinses and cleans the cleaned dishes stored in the storage shelf 14, and then drops into the tank body 11 a of the cleaning water tank 11 and is stored.

  In the tank main body 11a, as the rinse water falls, the existing washed water in the tank main body 11a is sequentially drained through the overflow pipe 11b in accordance with the amount of rinse water to be accommodated. After the end of the operation, the inside of the tank body 11a is substantially replaced with rinsing water. Note that tap water is used as the rinsing water, and the tap water is supplied into the booster 15 by opening a water supply valve 24 provided in the middle of the water supply pipe 23. The opening / closing control of the water supply valve 24 is controlled by a control device (not shown).

  The washing water in the dishwasher A1 is prepared by electrolyzing the electrolyzed water generating device B1, and the electrolyzing operation of the electrolyzed water generating device B1 depends on the operating condition of the washing operation of the dishwasher A1. To do.

  The electrolyzed water generating device B1 is an existing electrolyzed water generating device that is installed in the kitchen independently of the dishwasher A1. The electrolyzed water generating device B1 uses dilute saline as electrolyzed water, and includes an electrolysis auxiliary supply device b that supplies saline as electrolysis auxiliary for preparing the electrolyzed water.

  The electrolyzed water generating device B1 is a known diaphragm-type electrolyzed water generating device per se, and the dilute saline solution to be electrolyzed is supplied to each electrolysis chamber of the diaphragm electrolyzer, and the supplied dilute water is supplied. The saline solution is subjected to diaphragm electrolysis under the set constant electrolysis conditions, and strongly alkaline electrogenerated alkaline water is generated in the cathode side electrolysis chamber, and strongly acidic electrolyzed acidic water is generated in the anode side electrolysis chamber. . In the present embodiment, the electrolytically generated alkaline water generated in the cathode side electrolysis chamber flows out through the first lead-out conduit 31a connected to the cathode side electrolysis chamber and is generated in the anode side electrolysis chamber. The acidic water flows out through the second outlet conduit 31b connected to the anode side electrolysis chamber.

  In the present embodiment, the electrolyzed water supply line 32 a that supplies electrolyzed water to the wash water tank 11 and the electrolyzed water introduction pipe 32 b that introduces the electrolyzed water into the neutralization tank C 1 are connected via the switching valve 33. And connected to the first lead-out conduit 31a and the second lead-out conduit 31b. In such a connection state of each pipe line, when the switching valve 33 is in a normal state where the switching operation is not performed, the first lead-out pipe line 31a is connected to the electrolyzed water supply pipe line 32a, and the first The two outlet conduits 31b are connected to the electrolytically generated water introduction conduit 32b. Further, when the switching valve 33 is in a switching operation state in which the switching valve 33 is switched from the normal state, the first outlet pipe 31a is connected to the electrolytically generated water introduction pipe 32b, and the second outlet pipe 31b is electrolytically generated water. Connected to the supply line 32a.

  Therefore, when the switching valve 33 is in a normal state, the electrolytically generated alkaline water generated in the cathode side electrolysis chamber is supplied to the wash water tank 11 through the first outlet pipe 31a and the electrolytically generated water supply pipe 32a. The electrolytically generated acidic water generated in the anode-side electrolysis chamber is introduced into the neutralization tank C1 through the second lead-out conduit 31b and the electrolytically generated water introduction conduit 32b.

  Further, when the switching valve 33 is in the switching operation state in which the switching operation is performed from the normal state, the electrolytically generated alkaline water generated in the cathode side electrolysis chamber passes through the first outlet pipe 31a and the electrolytically generated water introduction pipe 32b. The electrolytically generated acidic water introduced into the neutralization tank C1 and generated by the anode side electrolyzed water is supplied to the washing water tank 11 through the second lead-out conduit 31b and the electrolytically generated water supply conduit 32a.

  The electrolytically generated alkaline water supplied to the washing water tank 11 of the dishwasher A1 is diluted with rinsing water or the like in the washing water tank 11 in the washing water tank 11 to prepare alkaline washing water. It is subjected to alkaline cleaning. Further, the electrolytically generated acidic water supplied to the cleaning water tank 11 is used for acid cleaning of the cleaning water circuit.

  Therefore, in this embodiment, the electrolyzed water supply conduit 32a functions as an alkaline water supply conduit defined in the present invention, and also serves as an acid water supply conduit constituting the cleaning and cleaning means defined in the present invention. Function. In other words, the electrolyzed water supply line 32a serves as both an alkaline water supply line and an acid water supply line, and the dishwasher A1 includes a cleaning device for cleaning the wash water circuit with acid. Will be.

  The neutralization tank C1 functions to neutralize the electrolytically generated acidic water to remove the chlorine component in the electrolytically generated acidic water and prevent the scattering of chlorine gas from the electrolytically generated acidic water. In 34a, the neutralizing agent which has calcium as a main component, such as a calcium carbonate and a cold water stone, is accommodated. In the tank 34a of the neutralization tank C1, electrolytically generated acidic water and electrolytically generated alkaline water generated by the electrolytic water generating device B1 are introduced through the electrolytically generated water introduction conduit 32b. The washed water in the inside is drained through the drain pipe 11e by opening the drain valve 11f. The neutralized water in the tank 34a is drained through the overflow pipe 34b.

  In the dish washing operation by the dishwasher A1, the rinse water supplied from the booster 15 into the washing tank 11 and the electrolytic production supplied from the electrolyzed water generator B1 to the washing tank 11 prior to the washing step. Washing water (alkaline washing water) having a washing function is prepared with alkaline water. Thereafter, the operation of the cleaning process and the rinsing process is performed to end the cleaning operation, or the series of cleaning modes are repeatedly performed as necessary to end the cleaning operation. In the latter cleaning operation, since the concentration of electrolytically generated alkaline water in the cleaning water decreases for each series of cleaning modes, the electrolytically generated alkaline water corresponding to the amount of rinse water supplied in the operation of the rinsing process is replenished. Then, wash water is prepared.

  The alkaline cleaning water is prepared by subjecting the electrolyzed water generating device B1 to electrolysis for a predetermined time, and the electrolyzed alkaline water generated in the cathode side electrolysis chamber is supplied to the first outlet pipe 31a and the electrolyzed water supply pipe. The washing water tank 11 is supplied through the path 32a and diluted with rinsing water stored in the washing water tank 11 to prepare alkaline washing water. After that, the tableware was washed with alkali.

  During this time, the electrolytically generated acidic water generated in the anode-side electrolysis chamber is introduced into the tank 34a of the neutralization tank C1 through the second outlet pipe 31b and the inlet pipe 32b. The introduced electrolytically generated acidic water is neutralized by the neutralizing agent accommodated in the tank 34a to remove volatile chlorine components. The neutralized water is drained through an overflow pipe 34b provided in the tank 34a.

  In the alkaline washing operation of the dishes by the dishwasher A1, the alkaline washing water in the washing water tank 11 is supplied to the washing nozzle 12 through the supply line 21 by driving the washing pump 16 for a predetermined time. The supplied alkaline cleaning water is sprayed from the cleaning nozzle 12 to the tableware stored in the storage shelf 14 and falls into the cleaning water tank 11. During this time, the alkaline cleaning water is repeatedly circulated through the supply pipe 21, the cleaning nozzle 12, and the cleaning water tank 11 (cleaning water circuit) to complete the alkaline cleaning of the dishes.

  Then, the dishwasher A1 shifts to a tableware rinse washing operation. In the rinse operation, the rinse water (warm water) in the booster 15 is supplied to the rinse nozzle 13 through the supply line 22 by driving the rinse pump 17 for a predetermined time. The supplied rinsing water is sprayed from the rinsing nozzle 13 onto the dishes stored in the storage shelf 14 and falls into the washing water tank 11. During this time, the washed water in the washing water tank 11 gradually overflows through the overflow pipe 11b and is discharged into the neutralization tank C1.

  In the dishwasher A1 according to the present invention, when a series of cleaning modes are finished and the dishwashing washing operation is finished, a cleaning washing operation for cleaning the washing water circuit is performed. In the cleaning operation, the scale adhering to the cleaning water circuit composed of the supply pipe 21, the cleaning nozzle 12, and the cleaning water tank 11, which is caused by the fact that the cleaning water is electrolytically generated alkaline water, is acidified by the electrolytically generated acidic water. It is washed and removed.

  The cleaning operation is first performed by performing electrolysis operation of the electrolyzed water generating apparatus B1, and prior to this, the washed water remaining in the wash water tank 11 is drained through the drain line 11e. At the same time, the switching valve 33 in the normal state is switched, and then the electrolytic operation is performed for a predetermined time. As a result, the electrolytically generated acidic water generated in the anode-side electrolysis chamber is supplied to the washing water tank 11 through the second lead-out conduit 31b and the electrolyzed water supply conduit 32a in a predetermined amount, and to the anode-side electrolysis chamber. The electrolytically generated alkaline water generated in this way is introduced into the neutralization tank C1 through the first lead-out conduit 31a and the electrolytically generated water introduction conduit 32b.

  Thereafter, the electrolysis operation of the electrolyzed water generator B1 is stopped and the cleaning operation is performed. The cleaning operation is performed by driving the cleaning pump 16 for a predetermined time. By driving the cleaning pump 16, the electrolytically generated acidic water in the cleaning water tank 11 is supplied between the supply line 21, the cleaning nozzle 12, and the cleaning water tank 11. Is circulated a predetermined number of times to wash the wash water circuit with acid, whereby the wash water circuit is cleaned.

  The electrolytically generated acidic water in the cleaning water tank 11 used for cleaning is drained into the neutralization tank C1 through the drain pipe 11e. The drained electrolytically generated acidic water is neutralized by the electrolytically generated alkaline water previously introduced into the tank 34a of the neutralizing tank C1 to remove volatile chlorine components, and the neutralized water is stored in the tank 34a. It is drained through an overflow pipe 34b provided in

  Note that the above-described alkaline cleaning, rinsing cleaning, cleaning cleaning of the cleaning water circuit, and accompanying electrolysis operation of the electrolyzed water generating device B1 by the tableware washing machine A1 are controlled by a control device (not shown). The The control device includes an operation control program for alkaline cleaning, rinsing cleaning, and cleaning cleaning of the cleaning water circuit in the dishwasher A1, and an electrolysis operation control program for the electrolyzed water generating device B1 associated therewith. These control programs are stored and executed, but this is omitted from the flowchart for executing these control programs.

  As described above, the dishwasher A1 according to the present invention includes the introduction pipe line 32b for introducing the electrolytically generated acidic water generated by the electrolytic water generator B1 into the neutralization tank C1, and the alkaline cleaning water. At the time of preparation, the electrolytically generated acidic water generated in synchronism with the electrolytically generated alkaline water is introduced into the neutralization tank C1 through the introduction pipe line 32b and neutralized.

  For this reason, the electrolytically generated acidic water generated in synchronism with the electrolytically generated alkaline water can be drained in a neutralized state, and there is little or no generation of chlorine gas from the electrolytically generated acidic water during drainage. It is suppressed and the generation | occurrence | production of the rust in the metal part of the apparatus arrange | positioned around can be prevented. In this case, a neutralizing agent mainly composed of calcium, such as calcium carbonate and cold water stone, is employed as the neutralizing agent. Calcium carbonate and cold water stone are inexpensive and have the advantage of being very safe in handling.

  In the dishwasher A1, the drainage pipe 11e having a drain valve 11f for draining the washing water in the washing water tank 11 to the neutralization tank C1 is provided. Wash water (alkali wash water) drained from the wash water tank 11 can function as a neutralizing agent. For this reason, when the neutralizing agent accommodated in the tank 34a of the neutralizing tank C1 is consumed, replenishment of the neutralizing agent is unnecessary, which is extremely advantageous.

  Further, in the dishwasher A1 including the drain pipe 11e having the drain valve 11f for draining the wash water in the wash water tank 11 to the neutralization tank C1, the electrolytically generated alkaline water is being stored in the wash water tank 11. Can adopt means for introducing the electrolytically generated acidic water into the neutralizing tank C1, and while the electrolytically generated acidic water is stored in the washing water tank 11, means for introducing the electrolytically generated acidic water into the neutralizing tank C1. The electrolytically generated alkaline water can be used as a neutralizer for the electrolytically generated acidic water drained from the washing water tank 11.

  Further, in the tableware washing machine A1, when the neutralization tank C1 is in an empty state, first, a cleaning cleaning operation is performed, and electrolytically generated acidic water for cleaning cleaning is placed in the cleaning water tank 11. While supplying, the neutralization tank C1 can adopt means for introducing electrolytically generated alkaline water generated in synchronization with the electrolytically generated acidic water. Thereby, there exists an advantage which can neutralize the electrolysis production | generation acidic water drained from the washing water tank 11 with the electrolysis production | generation alkaline water accommodated in the neutralization tank C1.

  FIG. 2 shows a second embodiment of the dishwasher according to the present invention. The dishwasher A2 according to this embodiment uses a diaphragm-type electrolytic water generator B2 installed in the kitchen independently of the dishwasher A1 according to the first embodiment. Is the same except that the neutralization tank C2 employed is different from the neutralization tank C1.

  For this reason, about the said dishwasher A2 and the said electrolyzed water generating apparatus B2, the code | symbol used for each member and each site | part of the dishwasher A1 and the electrolyzed water generating apparatus B1 is attached | subjected, and the detail of the structure is shown. Description is omitted, and the neutralization tank C2 will be mainly described in detail.

  The neutralization tank C2 employed in the second embodiment includes a closed container-like tank body 35a, an overflow pipe 35b provided in an upper part of the side wall of the tank body 35a, and an upper wall of the tank body 35a. The tank main body 35a contains a neutralizing agent such as calcium carbonate or cryogenic stone, and activated carbon 35d in the middle of the exhaust pipe 35c. Is housed. The activated carbon 35d corresponds to an adsorbent that adsorbs harmful components in the gas as defined in the present invention.

  The neutralization tank C2 is connected to the introduction pipe line 32b of the electrolyzed water generating device B2 and the drainage pipe line 11e of the washing water tank 11. Both the introduction pipe line 32b and the drainage pipe line 11e are connected to the neutralization tank C2. In the state which penetrated the upper wall part of tank main part 35a, it has opened above tank main part 35a.

  Accordingly, in the neutralization tank C2, electrolytically generated acidic water and electrolytically generated alkaline water generated by the electrolytic water generating device B2 are introduced into the tank body 35a through the introduction pipe line 32b, and the washing water tank 11 is used. The alkaline cleaning water (electrolytically generated alkaline water) and the acid cleaning water (electrolytically generated acidic water) are drained into the tank body 35a through the drainage pipe 11e.

  The electrolytically generated acidic water introduced into the tank body 35a from the electrolytic water generator B2 and the electrolytically generated acidic water discharged from the washing water tank 11 into the tank body 35a are contained in the tank body 35a. The neutralized electrolytically generated alkaline water stored in the tank or the tank main body 35a is neutralized and drained through the overflow pipe 35b. In addition, chlorine gas and the like generated in the tank body 35a are exhausted to the outside through the exhaust pipe 35c, but harmful components such as chlorine gas in the exhaust are adsorbed and removed by the activated carbon 35d during the exhaust.

It is a schematic structure figure showing typically a 1st embodiment of a dishwasher concerning the present invention. It is a schematic block diagram which shows typically 2nd Embodiment of the dishwasher which concerns on this invention.

Explanation of symbols

A1, A2, ... Dishwasher, B1, B2 ... Electrolyzed water generating device, b ... Electrolytic auxiliary agent supply device, C1, C2 ... Neutralizing tank, 11 ... Washing water tank, 11a ... Tank body, 11b ... Overflow pipe, 11c ... Water level sensor, 11d ... Electric heater, 11e ... Drain pipe, 11f ... Drain valve, 12 ... Washing nozzle, 13 ... Rinse nozzle, 14 ... Storage shelf, 15 ... Booster, 16 ... Washing pump, 17 ... Rinsing pump, 21, 22 ... supply pipes, 23 ... water supply pipes, 24 ... water supply valves, 31 a ... first discharge pipes, 31 b ... second discharge pipes, 32 a ... electrolytic water supply pipes, 32 b ... electrolytic water introduction Pipe, 33 ... switching valve, 34a ... tank, 34b ... overflow pipe, 35a ... tank body, 35b ... overflow pipe, 35c ... exhaust pipe, 35d ... activated carbon.

Claims (8)

A dishwasher using electrolytically generated alkaline water generated by an electrolyzed water generator of diaphragm membrane electrolysis as washing water, diluted with water supplied to the washing water tank and accommodated in the washing water tank A dishwashing machine having a washing process using the electrolytically generated alkaline water as washing water, and a rinsing process using the water contained in the rinse water tank as rinsing water. An introduction pipe for supplying the electrolytically generated acidic water generated by the electrolytic water generating apparatus to the neutralization tank, and having an alkaline water supply pipe for supplying the electrolytically generated alkaline water generated by the apparatus to the washing water tank A dishwasher comprising a passage, wherein the neutralizing tank contains a neutralizing agent that neutralizes the electrolytically generated acidic water. 2. The dishwasher according to claim 1, wherein the dishwasher includes a drain pipe having a drain valve for draining the washing water in the washing water tank to the neutralization tank. Machine. It is a dishwasher of Claim 1 or 2, Comprising: The neutralizing agent accommodated in the said neutralization tank is a neutralizing agent which has calcium as a main component, The dishwasher characterized by the above-mentioned. It is a dishwasher as described in any one of Claims 1-3, The said dishwasher is equipped with the cleaning washing | cleaning means which cleanses the scale generated in a washing water circuit by acid cleaning, The said cleaning The cleaning water means has as its main component an acid water supply pipe for supplying the generated acid water generated by the electrolytic water generator to the cleaning water tank, and the cleaning water tank is the same as the cleaning water tank. A dishwasher comprising a drainage pipe having a drainage valve for draining the electrolytically generated acidic water in the neutralization tank. It is a dishwasher as described in any one of Claims 1-4, The said neutralization tank is equipped with the exhaust pipe which exhausts the gas generated in the tank of the same neutralization tank, and the said exhaust pipe line has it. A dishwasher comprising an adsorbent that adsorbs harmful components in the gas. 5. The dishwasher according to claim 4, wherein the electrolytically generated acidic water is introduced into the neutralization tank while the electrolytically generated alkaline water is stored in the cleaning water tank. 6. The dishwasher according to claim 5, wherein electrolytically generated alkaline water is introduced into the neutralization tank while electrolytically generated acidic water is stored in the cleaning water tank. 6. The dishwasher according to claim 5, wherein when the neutralization tank is empty, a cleaning cleaning operation is performed to supply electrolytically generated acidic water into the cleaning water tank, A dishwasher characterized in that electrolyzed alkaline water is introduced into the Japanese tank.

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