JPS592762Y2 - Dishwasher - Google Patents

Description

[Detailed description of the invention] This invention is equipped with a high-temperature water heater that heats and stores water supplied from a water supply source in addition to a cleaning tank that stores cleaning hot water for the cleaning cycle. In a dishwasher that is used for cycling and that drains the rinse water after rinsing into the washing tank and exchanges the washing water with fresh water,
In particular, the present invention relates to a dishwasher that effectively utilizes rinsing water that falls into a washing tank.

In conventional washing machines, as shown in Figure 3, it is natural that the uniform temperature amount of rinsing water that falls after rinsing overflows to the outside from an overflow pipe B installed upright in the washing tank A. Although it is very wasteful in that the hot water overflows, it is advantageous in that the oil floating on the surface of the washing water can be overflowed, so that the washing water can be replaced with fresh water.

In view of this, the present invention provides a dishwasher that effectively utilizes the heat of waste water to save energy without sacrificing the advantage of being able to exchange the washing water with fresh water depending on the uniform temperature of the rinsing water. An embodiment of the present invention will be described below based on the drawings.

In Figures 1 and 2, a cleaning chamber 2 is defined at the upper part of the main body, the front of which is opened by a door 1 that can be raised and lowered, and a cleaning nozzle 3 and a rinsing nozzle 4 are arranged above and below the cleaning chamber 2. death,
In between, a rack 6 for storing objects 5 to be cleaned is placed on a support frame 7.

Further, a cleaning tank 10 is provided below the cleaning chamber 2 and has a drain port 8 formed at the bottom and a first overflow pipe 9 that can be pulled up from the drain port 8 in an upright manner.

Further, the cleaning chamber 2 and the cleaning tank 10 are separated by a removable strainer 11.

The cleaning hot water 12 stored in the cleaning tank 10 is force-fed to the cleaning nozzle 3 by the cleaning pump 13 and sprayed toward the object 5 to be cleaned.

The cleaning hot water 12 after cleaning falls into the cleaning tank 10 again through the strainer 11.

The rinsing water 14 injected from the rinsing nozzle 4 uses high-temperature water from a high-temperature water heater 18 that is configured to heat water supplied from a water supply source through a water supply pipe 15 into a rinsing tank 16 with a gas booster 17. do.

Then, the rinsing water 14 in the rinsing tank 16 is force-fed to the rinsing nozzle 4 by the rinsing pump 19 and sprayed toward the object 5 to perform rinsing.

Reference numeral 20 is a float for controlling water supply to the rinse tank 16, and controls the water supply pipe 15 to replenish the rinse water 14 used in the rinse cycle from the water supply pipe 15 to the rinse tank 16.

A heat exchange tank 21 communicates with the cleaning tank 10 via a lower communication pipe 22, and stores cleaning hot water 12 at the same water level as the cleaning tank 10.

Reference numeral 23 denotes a second overflow pipe whose lower edge opens into the side wall of the heat exchange tank 21 at a position slightly lower than the upper end opening of the first overflow pipe 9.

Furthermore, a part of the water supply pipe 15 is arranged in a coil shape inside the heat exchange tank 21.

According to the dishwasher of the present invention configured as described above, the water supply pipe 15 exchanges heat with the washing water 12 in the heat exchange tank 21 without lowering the temperature of the washing water 12 in the washing tank 10, so the water supply pipe 15 is rinsed. The temperature of the water supplied to the tank 16 rises, making it possible to save energy in the booster 17, and the water level in the washing tank 10, which falls after rinsing, and the water level in the heat exchange tank 21 both rise, so the rinsing water increases. 1
The equal temperature amount of 4 overflows from both the first overflow pipe 9 and the second overflow pipe 23 in each rinse cycle.

Therefore, the oil mixed in the hot water overflowing from the first overflow pipe 9 and floating on the surface of the cleaning water 12 is drained to the outside, so that the cleaning water 12 is removed by the rinsing water 14.
When the cleaning hot water 12 in the heat exchange tank 21 and the water supply pipe 15 exchange heat, the temperature of the hot water in the heat exchange tank 21 decreases, but the cleaning tank 10 to the heat exchange tank 21, and the amount of hot water transferred overflows from the second overflow pipe 23 in the heat exchange tank 21, so the temperature of the hot water in the heat exchange tank 21 decreases. This also prevents heat exchange and allows efficient heat exchange at all times.

As described above, the present invention arranges the water supply pipe to the high-temperature water heater in the heat exchange tank that communicates with the cleaning tank, and also provides the first overflow device in the cleaning tank and the second overflow device in the heat exchange tank. This dishwasher is equipped with an overflow device, and is configured so that the equal temperature amount of the rinse water that falls into the washing tank overflows from both the first and second overflow devices. The washing water and the water supply pipe exchange heat, raising the temperature of the water supplied to the rinse tank, making it possible to save energy on the heat source of the high-temperature water heater.

Further, since the oil floating on the surface of the washing water in the washing tank is caused to overflow from the first overflow device, the washing water can be sufficiently replaced with fresh water.

Furthermore, hot water is transferred from the washing tank to the heat exchange tank during each rinse cycle, which prevents the temperature of the hot water in the heat exchange tank from dropping, allowing efficient heat exchange at all times, and other practical advantages. It is.

[Brief explanation of drawings]

1 and 2 are internal views of the dishwasher of the present invention as seen from different directions, and FIG. 3 is a view of a conventional example. 9...First overflow pipe, 10...
...Cleaning tank, 12...Cleaning water, 14...
...Rinse water, 15...Water pipe, ■...
...High temperature water dispenser, 21... Heat exchange tank, 23
...Second overflow pipe.

Claims (1)

[Scope of utility model registration request] In addition to the cleaning tank that stores cleaning water for the cleaning cycle, there is also a high-temperature water heater that heats and stores water supplied from a water supply source, and the high-temperature water in the water heater is used for rinsing cycles and after rinsing. In a dishwasher in which rinsing water is dropped into the washing tank and the washing water is exchanged with fresh water, a heat exchange tank is provided which communicates with the washing tank and stores the washing water. A water supply pipe connected between the water supply source and the high-temperature water heater is disposed in the heat exchange tank so as to exchange heat with the washing water in the heat exchange tank, and a first overflow is provided in the washing tank. a second overflow device is provided in the heat exchange tank, so that an equal temperature amount of the rinse water falling into the washing tank overflows from both the first and second overflow devices, respectively. A dishwasher characterized by: