Abstract: A washer includes: a supply-water storage section configured to store supply water; a wastewater storage section configured to temporarily store wastewater and a wastewater heat recovery device including a water supply channel through which the supply water is supplied to the supply-water storage section and a drain channel through which the wastewater is drained from the wastewater storage section, and configured to exchange heat between the wastewater flowing in the drain channel and the supply water flowing in the water supply channel. the wastewater heat recovery device is disposed below the washing chamber, and is provided in a machine chamber in which a pump configured to deliver the supply water from the supply-water storage section to the washing chamber is disposed, and the drain channel is connected to a drain hole of the wastewater storage section.

Abstract: A washer that enables efficient heat exchange and can prevent a decrease in flexibility in installation of the washer is provided. A washer 1 includes: a supply-water storage section 28 configured to store supply water W2 to be used for washing and rinsing an object P to be washed accommodated in a washing chamber 3; a wastewater storage section configured to temporarily store wastewater W1 that has been used for washing and rinsing the object to be washed; and a wastewater heat recovery device 450 including a water supply channel 52 through which the supply water is supplied to the supply-water storage section and a drain channel 51 through which the wastewater is drained from the wastewater storage section 15, and configured to exchange heat between the wastewater flowing in the drain channel and the supply water flowing in the water supply channel.

Abstract: In the dishwasher, a washing water distribution pipe on which washing nozzles are installed is arranged within a washing chamber, and is connected removably to a first connecting pipe that communicates with the outlet side of a washing pump. In the same way, a rinsing water distribution pipe on which rinsing nozzles are installed is arranged within the washing chamber, and is connected removably to a second connecting pipe that communicates with the outlet side of a rinsing pump. These connections are made within a washing water tank in the bottom of the washing chamber, therefore the washing water distribution pipe and the rinsing water distribution pipe can be easily installed and removed from the washing chamber. Moreover, the washing water distribution pipe and the rinsing water distribution pipe are unitized, so handling is extremely easy.

Abstract: To provide a dishwasher for which the washing water distribution pipe provided with the washing nozzles and the rinsing water distribution pipe provided with the rinsing nozzles can be easily installed and removed from the washing chamber. In the dishwasher 1, a washing water distribution pipe 21 on which washing nozzles 12, 14 are installed is arranged within a washing chamber 3, and is connected removably to a first connecting pipe 31 that communicates with the outlet side of a washing pump 19. In the same way, a rinsing water distribution pipe 27 on which rinsing nozzles 13, 15 are installed is arranged within the washing chamber 3, and is connected removably to a second connecting pipe 33 that communicates with the outlet side of a rinsing pump 24. These connections are made within a washing water tank 17 in the bottom of the washing chamber 3, therefore the washing water distribution pipe 21 and the rinsing water distribution pipe 27 can be easily installed and removed from the washing chamber.

Abstract: A nozzle structure for a dish washer for washing tableware with washing water and rinsing water jetted from nozzle arranged in a washing tank. The nozzle structure comprising a shaft arranged on the nozzle, a nozzle mount provided in the washing tank and formed with a mount hole, which permits removable insertion of the shaft, and a coming-off preventing means for detachably preventing the shaft inserted into the mount hole of the nozzle mount from coming off.

Abstract: Side extension members and a front extension member, which extend inwardly horizontally to be bent downward at right angle are provided on side walls and a front wall in a washing tank to be positioned at a level lower by a predetermined distance than a top end of the washing tank. A rack rail is pivotally supported on the side extension members through shaft portions to be made turnable. The rack rail is formed with positioning portions. Restriction members are provided on the front extension member to extend inward corresponding to the positioning portions of the rack rail, and the positioning portions are adapted to be placed on the restriction members.