JPH1099253A - Dish washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a dish washer and reduce cost even if it is to correspond to environmental problems, not to use a detergent, etc., or to reduce the usage, and to prevent public pollution of rivers and seas as long as possible. SOLUTION: This dish washer is constituted so as to perform a cleaning process of a matter to be cleaned conveyed by a conveyor 6 in a washing room 3 before a rinsing process. In this case, an ion producing means 12 to produce alkaline water and acidic water, a cleaning tank 9 to store and circulate and supply alkaline water produced at the ion producing means 12 to a washing nozzle 7, a neutralizing tank 11 to store the acidic water produced at the ion producing means 12. The alkaline water in the cleaning tank 9 is flown into the neutralizing tank 11 and the acidic water produced at the ion producing means 12 is flown into the neutralizing tank 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a cleaning chamber for cleaning an object to be cleaned carried by a carrier in a cleaning room.
The present invention relates to a dishwashing device that performs a rinsing process.

[0002]

2. Description of the Related Art Conventionally, this kind of dishwasher has been infiltrated with strong alkaline water heated to about + 40 ° C. by a heating means as shown in, for example, JP-A-6-296572 (A47L15000). -There is a pre-washing means, in which dishes are immersed for about 10 to 12 minutes and washed. During the operation, the strong alkaline water is stirred together with the aeration by the aeration and stirring means. Next, another part of the heated strong alkaline water at 70 ° C. to 80 ° C. is blown out for 4 to 5 minutes by the washing / rinsing means of the strong alkaline water jet to rinse the tableware washed in the former stage. Finally, the sterilizing means with strong acid water is set at the latter stage of the above-mentioned washing and rinsing means, the strong acid water is injected, the tableware rinsed at the former stage is immersed therein, and this is instantaneously sterilized. .

[0003]

In recent years, various types of equipment (for example, commercial refrigerators, commercial ice machines, and thermal appliances such as griddles and gas stoves) that are carried into a kitchen have been increasing and increasing in size. The space for installing a dishwasher is also limited.

[0004] For this reason, in the conventional washing machine described above, the pre-washing means, the washing / rinsing means, and the sterilizing means are separately provided, and since the apparatus is large, installation in a kitchen is required. There is a problem that it cannot be performed, and furthermore, there is a problem that the cost is high. Even a dishwasher that responds to environmental problems can not be installed in a kitchen, and it does not make sense unless it is widely used.

The present invention has been made to solve the above-mentioned conventional technical problems, and in response to environmental problems, does not use or reduces the amount of detergents and the like, and reduces the pollution of rivers and the sea. Even a dishwasher that minimizes the size,
This is a dishwasher intended to reduce costs.

[0006]

According to a first aspect of the present invention, there is provided a dishwashing apparatus comprising: a washing chamber for rinsing an object to be washed in a washing chamber; In a dishwasher for performing a process, an ion generating means for generating alkaline water and acidic water, a cleaning tank for storing the alkaline water generated by the ion generating means for circulation and supply to a cleaning nozzle, And a neutralization tank for storing the acidic water generated by the means,
A dishwashing apparatus is provided, in which alkaline water in the washing tank flows into the neutralization tank and acid water generated by the ion generating means flows into the neutralization tank.

This dishwashing apparatus is a dishwashing apparatus that performs washing and rinsing in a single washing room. The dishwashing apparatus performs washing with alkaline water generated by ion generating means, and removes the alkaline water from the ion generating means. The acidic water generated in the above is allowed to flow into a neutralization tank for storage, and after neutralization, drained.

According to a second aspect of the present invention, there is provided a dishwashing apparatus for performing a rinsing step after a washing step of an object to be washed carried by a transfer apparatus in a washing chamber. , A cleaning tank for storing the alkaline water generated by the ion generating means for circulation supply to the cleaning nozzle, and a rinsing nozzle using the acidic water generated by the ion generating means as rinsing water. And a neutralization tank that receives the rinse water and stores the rinse water, and provides the dishwashing apparatus that flows the alkaline water in the cleaning tank into the neutralization tank.

This dishwashing apparatus is a dishwashing apparatus for performing washing and rinsing in a single washing chamber, wherein the washing is performed with alkaline water generated by ion generating means, and the acidic water generated by ion generating means. Perform a rinse. In addition, alkaline water flows into a neutralization tank that stores acidic water, and after neutralization, drains water.

Further, in the dishwashing apparatus according to the third aspect of the present invention, the dishwashing apparatus according to the first or second aspect is provided with an overflow pipe provided to keep the water level of the neutralization tank lower than that of the washing tank. provide.

Therefore, it is possible to prevent the acidic water from flowing back from the neutralizing tank for storing the acidic water to the washing tank for storing the alkaline water.

[0012]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows claims 1 and 3 of the present invention.
FIG. 2 is a schematic vertical sectional side view of a dishwashing apparatus DWA, and FIG. 2 is a dishwashing apparatus DWA showing claims 2 and 3 of the present invention.
FIG.

The dishwasher DWA of the present invention comprises a conventional dishwasher 1 of a rack conveyor type and an ion water generator 11 as ion generating means. 2
Is a rack for storing tableware as an object to be washed.
Is formed in a stitch shape so that water does not accumulate in the rack 2.

The dishwasher 1 has a washing chamber 3 defined therein. The left side of the dishwasher 1 has a carry-in port 4 of the rack 2, and the right side has a carry-out port 5 of the rack 2. Washing and rinsing are performed while moving the placed tableware in the washing room 3. The movement in the cleaning chamber 3 is performed by a conveyor-like transport device 6 provided in the cleaning chamber 3, and the transport device 6 performs cleaning and rinsing for a predetermined time. Although not shown, the carry-in port 4 and the carry-out port 5 are provided with soft resin curtains for washing and rinsing water splash prevention, respectively.

A washing nozzle 7 for injecting washing water to a rack is provided on the carry-in side 4 side of the washing chamber 3 and above and below the transfer device 6, and on a carry-out side in the washing chamber 3. Rinsing nozzles 8 for injecting rinsing water toward the rack are provided on the left and right sides of the transfer device 6, respectively. Accordingly, the cleaning nozzle 7 and the rinsing nozzle 8 are arranged so as not to interfere with each other.

A washing tank 9 for storing washing water is provided below the washing chamber 3 and on the side where the rack 2 is carried in, and a washing pump 10 is provided in the washing tank 9. Have been. The cleaning water in the cleaning tank 9 is sent by the cleaning pump 10 to the cleaning nozzle 7 of the cleaning chamber 3 via the cleaning water pipe 16. The cleaning water injected from the cleaning nozzle 7 returns to the cleaning tank 9 again and circulates.

Further, a neutralization tank 11 for receiving rinsing water is provided below the washing room 3 and on the carry-out side of the rack 2. The neutralization tank 11 stores the acidic water generated by the ion generator 12 described later.

In the vicinity of the dishwasher 1, about + 80 ° C.
Booster tank 1 for storing high-temperature rinse water
3 (disclosed only in FIG. 2). A rinsing pump (not shown) for supplying the rinsing water stored in the booster tank 13 to the rinsing nozzle 8 via the rinsing pipe 14 is provided between the booster tank 13 and the rinsing nozzle 8. ing. The rinsing water injected from the rinsing nozzle 8 is received and stored in the neutralization tank 11.

Tap water is supplied to the booster tank 13, and the water in the booster tank 13 is supplied to the + 80.degree.
It is heated to about the temperature and turned into hot water.

On the other hand, in addition to the booster tank 13, an ion water generator 12 is provided near the dishwasher 1. The ion water generator 12 converts alkaline water having a pH of 11 to 12 and acid water having a pH of 2 to 2.5 as a by-product by adding, for example, salt to tap water supplied from a water supply pipe (not shown) and performing electrolysis. To generate.

The generated alkaline water is supplied into the washing tank 9 through an alkaline water path 15, and the alkaline water path 15 is provided with a scale removing device 16 for removing scale of alkaline water, and Cleaning tank 9
Water level detector (float switch) for detecting water level
An on-off valve 18 for opening and closing at 7 is provided.

Here, the electromagnetic field type scale removing device 16
Is referred to as a scale watcher, which applies an electric field to strong alkaline water containing a large amount of calcium ions and the like flowing through the alkaline water path 15 to thereby provide the alkaline water path 15 and the subsequent cleaning tank 9 and cleaning nozzle 7. In the inner route, scale (carbonate or the like) is hardly deposited.

Further, the acidic water as a by-product is as shown in FIG.
According to the third aspect of the present invention, the water flows into the neutralization tank 11 through the acidic water path 19. Further, in FIG. 2 (the inventions of claims 2 and 3), the water flows into the booster tank 13 through the acidic water path 19, and is approximately +80 in the booster tank 13.
Heat to ℃ and supply as rinse water.

The washing tank 9 and the neutralization tank 11 are partitioned by providing a partition plate 20 at the center of one tank, and the nozzle 7A below the washing nozzle 7 passes over the partition plate 20, It extends to the neutralization tank 11 side. Further, the angle of the nozzle 7A can be changed, and by changing the angle,
The amount of alkaline water flowing into the neutralization tank 11 can be adjusted.

Further, the cleaning tank 9 may be provided with a drain valve 21 as shown in FIG. 1, or may not be provided as shown in FIG. When the drain valve 21 is provided, the washing water can be completely replaced every predetermined time or every predetermined number of washings. Although not shown, the washing tank 9 is filled with about 6 washing water.
An electric heater for heating to about 0 ° C. is provided. However, the cleaning tank 9 is only separated by the neutralization tank 11 and the partition plate 20, and since the heat of the neutralization tank 11 moves to the cleaning tank 9, the capacity of the electric heater does not need to be so large. .

Further, the neutralization tank 11 is provided with an overflow pipe 22.
Is provided so as to keep the water level lower than that of the washing tank 9. Even if alkaline water flows from the washing tank 9 to the neutralizing tank 11, the alkaline water flows back from the neutralizing tank 11 to the washing tank 9. There is no.

With the above configuration, the alkaline water in the washing tank 9 can be mixed with the acidic water in the neutralization tank 11 to drain the water in a neutralized state of pH 5.8 to 8.6 during drainage. Can be prevented as much as possible.

Further, a certain amount of alkaline water periodically flows into the neutralization tank 11 from the cleaning tank 9 and alkaline water flows from the ionic water generator 12 into the cleaning tank 9. (Wash water) can be kept clean.

Next, the operation of the dishwasher DSW having the above configuration will be described. When washing dishes as objects to be washed, they are first stored in a rack 2 and carried into a washing room 3 through a carry-in port 4.

On the other hand, the dishwasher 1 starts a hot water supply operation at the same time as the power is turned on. Alkaline water is supplied from the ion water generator 12 into the washing tank 9 through the alkaline water path 15 and stored while being heated. Go being. When the inside of the washing tank 9 becomes full by this hot water supply, the hot water supply operation is stopped, and the dishwasher 1 is in a standby state.

The loading of the rack 2 is performed in this standby state, and the washing process is started from the state where the rack 2 is loaded. In this cleaning step, the cleaning pump 10 is operated to circulate and supply the cleaning water in the cleaning tank 9 to the upper and lower cleaning nozzles 7 via the cleaning pipe 16. And it injects into the washing room 3 from the upper and lower washing | cleaning nozzle 7, and wash | cleans tableware.

At this time, since the washing water jetted from the washing nozzle 7 is strongly alkaline water as described above, the stains on the dishes are quickly removed. The cleaning process can be changed depending on the moving speed of the rack 2 and is executed while the rack 2 moves in the range of the cleaning process. When the rack 2 has completely moved in the range of the cleaning process, the supply of the cleaning water to the cleaning nozzle 7 is performed. Then, the cleaning process is completed.

After the completion of the cleaning step, the rinsing step is started when the apparatus moves to the range of the rinsing step. In the rinsing step, the rinsing pump is operated, and rinsing water (warm water) in the booster tank 13 is injected from the left and right rinsing nozzles 8 into the washing chamber 3 through the rinsing pipe 14 to rinse the washing water for the dishes.

This rinsing water is obtained by heating ordinary tap water to about 80 ° C. in FIG. 1 (the invention of claim 1 or 3), and FIG. 2 (the invention of claim 2 or 3). The acid water generated as a by-product during the generation of alkaline water is approximately +8
It was heated to 0 ° C.

In the case where acidic water is used, the temperature may be set to about 60 ° C. for the purpose of saving energy.

The rinsing step is completed in a predetermined time, and the washing of the dishes is completed. In the washing step and the rinsing step, the washing water (alkaline water) overflowing from the partition plate 20 that separates the washing tank 9 and the neutralizing tank 11 flows into the neutralizing tank 11 and the acidic water stored in the neutralizing tank 11. After neutralization with water, it is discharged.

As described above, since the alkaline water generated by the ionic water generator 12 for producing the alkaline water and the acidic water is used as the cleaning water in the cleaning step, the cleaning water itself exerts the cleaning effect. Become. Therefore, without using or reducing the detergent to be added to the washing water,
The cleaning performance can be remarkably improved by the alkaline water alone or the synergistic effect of the alkaline water and the detergent, and low running cost can be realized. In particular, since it is possible to abolish the introduction of the detergent itself, environmental problems can be effectively solved.

Further, wastewater generated in the washing step includes:
Since the acidic water generated by the ion water generator 12 is mixed and discharged, the waste water after washing can be neutralized and then discharged, and alkaline water or acidic water is used. The environmental problem caused by the operation itself can be solved.

A scale preventing device 16 for preventing or suppressing scale deposition is provided in the alkaline water path 15.
Is provided, it is possible to avoid a problem that scales that easily occur in the alkaline water adhere to the cleaning pipe 16 and the cleaning nozzle 7 to cause clogging and the like, thereby realizing a stable cleaning operation. become.

Further, in the rinsing step, warm water is used as the rinsing water, so that the alkaline water used for washing can be washed off the tableware, and the tableware generated by the residual alkaline water on the tableware. Inconveniences such as deterioration of the food itself or the foods contained therein can be avoided beforehand.

That is, the dishwashing apparatus DS according to the first aspect of the present invention.
According to W, in the dishwasher DSW which executes a rinsing step after the washing step of the article to be washed carried by the carrying device 6 in the washing chamber 3, the ion generating means 12 for producing alkaline water and acidic water is provided. A washing tank 9 for storing the alkaline water generated by the ion generating means 12 for circulation and supply to the cleaning nozzle 7, and a neutralizing tank 11 for storing the acidic water generated by the ion generating means 12; A dishwasher DSW is provided, in which alkaline water in the washing tank 9 flows into the neutralization tank 11 and acid water generated by the ion generating means 12 flows into the neutralization tank 11.

This dishwashing apparatus DSW is a dishwashing apparatus DSW that performs washing and rinsing in a single washing room 3,
Washing is performed with the alkaline water generated by the ion generating means 12, and the alkaline water flows into the neutralization tank 11 for storing the acidic water generated by the ion generating means 12, and is drained after being neutralized.

Accordingly, even in the case of the dishwasher 1 which does not use detergents or reduces the amount of use in response to environmental problems and minimizes pollution of rivers and seas, the size and cost of the dishwasher 1 are reduced. Can do things.

The dishwashing apparatus DS according to the second aspect of the present invention.
According to W, in the dishwasher DSW which executes a rinsing step after the washing step of the article to be washed carried by the carrying device 6 in the washing chamber 3, the ion generating means 12 for producing alkaline water and acidic water is provided. A washing tank 9 for storing the alkaline water generated by the ion generating means 12 for circulation and supply to the cleaning nozzle 7; and supplying the acidic water generated by the ion generating means 12 to the rinsing nozzle 8 as rinsing water. And a neutralization tank 11 for receiving and storing the rinse water, and a dishwasher DSW that allows alkaline water in the washing tank 9 to flow into the neutralization tank 11 is provided.

This dishwashing apparatus DSW is a dishwashing apparatus DSW that performs washing and rinsing in a single washing room 3,
Washing is performed with the alkaline water generated by the ion generating means 12, and rinsing is performed with the acidic water generated by the ion generating means 12. Further, alkaline water is flowed into a neutralization tank 11 for storing acidic water, and after neutralization, drained.

Therefore, even if the dishwasher 1 does not use detergents or reduces the amount of use, and minimizes pollution of rivers, the sea, etc. in response to environmental problems, the size and cost of the dishwasher 1 can be reduced. Can do things.

The dishwasher DS according to the third aspect of the present invention.
According to W, the dishwasher DSW according to claim 1 or 2 is provided with an overflow pipe 22 provided to keep the water level of the neutralization tank 11 lower than that of the washing tank 9.

For this reason, it is possible to prevent the acidic water from flowing back from the neutralization tank 11 for storing the acidic water to the cleaning tank 9 for storing the alkaline water, and it is possible to prevent the cleaning effect from decreasing as much as possible.

Further, even in the case of the dishwasher 1 which does not use detergents or reduces the amount of use in order to cope with environmental problems and minimizes pollution of rivers, the sea, etc., the size and cost of the dishwasher 1 are reduced. Can do things.

[0050]

As described above in detail, according to the dishwashing apparatus of the first aspect of the present invention, the dishwashing apparatus executes the rinsing step after the washing step of the object to be washed carried by the transfer device in the washing room. An ion generating means for generating alkaline water and acidic water, a washing tank for storing the alkaline water generated by the ion generating means for circulation supply to a cleaning nozzle, and an acid generating means for generating the alkaline water and the acidic water. A neutralizing tank for storing water, wherein the alkaline water in the washing tank flows into the neutralizing tank, and the acidic water generated by the ion generating means flows into the neutralizing tank. I do.

This dishwashing apparatus is a dishwashing apparatus for performing washing and rinsing in a single washing room. The dishwashing apparatus is washed with alkaline water generated by ion generating means, and the alkaline water is washed with the ion generating means. The acidic water generated in the above is allowed to flow into a neutralization tank for storage, and after neutralization, drained.

Therefore, it is necessary to reduce the size and cost of a dishwasher which does not use or reduce the amount of detergent, etc., and which minimizes pollution of rivers and the sea in response to environmental problems. Can be.

According to a second aspect of the present invention, there is provided a dishwashing apparatus for performing a rinsing step after a washing step of an article to be washed carried by a transfer apparatus in a washing chamber. An ion generating means for generating water, a cleaning tank for storing alkaline water generated by the ion generating means for circulation supply to a cleaning nozzle, and rinsing the acidic water generated by the ion generating means as rinsing water And a neutralization tank for supplying the nozzle with the rinse water to receive and store the rinse water, and to provide a dishwashing apparatus for flowing alkaline water in the cleaning tank into the neutralization tank.

This dishwashing apparatus is a dishwashing apparatus for washing and rinsing in a single washing room, wherein the washing is performed with alkaline water generated by the ion generating means and the acidic water generated by the ion generating means. Perform a rinse. In addition, alkaline water flows into a neutralization tank that stores acidic water, and after neutralization, drains water.

Therefore, it is necessary to reduce the size and cost of a dishwasher which does not use detergents or reduces the amount of use and minimizes pollution of rivers and seas in response to environmental problems. Can be.

According to the third aspect of the present invention, there is provided the dishwashing apparatus according to the first or second aspect, further comprising an overflow pipe provided to keep the water level of the neutralization tank lower than that of the washing tank.
A dishwasher according to the preceding claims.

For this reason, it is possible to prevent the acidic water from flowing back from the neutralizing tank for storing the acidic water to the washing tank for storing the alkaline water, and it is possible to prevent the washing effect from decreasing as much as possible.
In addition, a dishwasher that does not use detergents or reduces the amount of use in response to environmental problems and minimizes pollution of rivers, the sea, and the like can be reduced in size and cost.

[Brief description of the drawings]

FIG. 1 is a schematic vertical sectional side view of a dishwasher DWA according to claims 1 and 3 of the present invention.

FIG. 2 is a schematic longitudinal sectional side view of a dishwasher DWA according to claims 2 and 3 of the present invention.

[Explanation of symbols]

 DWA dishwasher 1 dishwasher 3 washing room 6 transfer device 7 washing nozzle 8 rinse nozzle 9 washing tank 11 neutralization tank 12 ion generating means (ion water generator) 22 overflow pipe

Claims (3)

[Claims] 1. A dishwashing apparatus for performing a rinsing step after a washing step of an object to be washed conveyed by a transfer apparatus in a washing chamber, comprising: an ion generating means for generating alkaline water and acidic water; A washing tank for storing the alkaline water generated by the means for circulation supply to the washing nozzle, and a neutralization tank for storing the acidic water generated by the ion generator, wherein the alkaline water in the washing tank is provided. A dishwashing apparatus wherein the acid water generated by the ion generation means is caused to flow into the neutralization tank while flowing into the neutralization tank. 2. A dishwasher for performing a rinsing step after a washing step of an object to be washed conveyed by a transfer device in a washing chamber, comprising: an ion generating means for generating alkaline water and acidic water; A washing tank for storing the alkaline water generated by the means for circulation supply to the washing nozzle, and supplying the acidic water generated by the ion generating means to the rinse nozzle as rinse water, and receiving and storing the rinse water. A dishwasher, wherein the alkaline water in the washing tank flows into the neutralizing tank. 3. The dishwasher according to claim 1, further comprising an overflow pipe provided to keep the water level of the neutralization tank lower than that of the washing tank.