Abstract: A control method of a dual-drum washing machine, comprising the following steps: step S1: before a first washing drum performing heating; step S2: determining whether a second washing drum is heating; step S3: if the determination result is yes, determining whether the remaining heating time of the second washing drum is more than T0; and step S4: if the determination result is yes, performing an alternate heating procedure in which the first washing drum and the second washing drum heat alternately, and if the determination result is no, performing a sequential heating procedure in which the second washing drum heats before the first washing drum, wherein T0 is a time value, set through a system, for determining whether heating of the second washing drum is coming to an end.

Abstract: A control method of a double-drum washing machine, having a first washing drum and a second washing drum. Whether the heating time required by the first drum is overlong is judged before the first drum performs heating. If yes, the second drum executes the heating, or dewatering, or drying processes. If not, the following steps are performed: judging whether the second drum performs heating; if yes, judging whether the remaining heating time of the second washing drum is greater than T0; if the judgment result is yes, executing the alternate heating program that the first drum and the second washing drum perform heating alternately, and if the judgment result is no, executing the ordered heating program that the second drum performs heating firstly, and then the first drum performs heating, wherein T0 is a time value for judging whether the heating of the second drum is about to finish or not.

Abstract: A water reuse control method of a multiple-drum washing machine, having a first washing drum and a second washing drum. When the first drum reaches a drainage process, comparing a time for the second drum to reach a water supply process T12 to a time for the first drum to reach a next drainage process T11; if T12<T11, the first drum waits until water is supplied into the second drum; if T12?T11, water in the first drum is directly drained. Alternatively, when the first drum reaches the water supply process, comparing time for the second drum to reach the drainage process T22 to time for the first drum to reach a next water supply process T21; if T22?T21, clean water is directly supplied into the first drum; if T22<T21, the first drum waits until the second drum drains water.

Abstract: A water replenishment control method for a multi-drum washing machine. The washing machine comprises at least a first washing drum and a second washing drum. While the first washing drum is in a washing process, if the water level of washing water is lower than a set value, then a water replenishment process is executed, and before that, it is necessary to determine whether or not the second washing drum is executing a water replenishment process; if yes, the first washing drum pauses the water replenishment process, and the second washing drum executes precedence preferentially; if no, the first washing drum executes water replenishment process and terminates it when the water level of the washing water reaches a set water level.

Abstract: A double-drum washing machine has a first washing drum and a second washing drum. A control method comprises water intake and drainage control and high-power process control, wherein the water intake and drainage control comprises water intake control and water drainage control; the first washing drum judges whether to reuse drained water of the second washing drum before executing a water intake process and judges whether to enable the drained water to be drained into the second washing drum and reuse the water or not before executing a water drainage process; and the high-power process control is used for controlling any one of a heating process, a dewatering process and a drying process of the first washing drum and any one of a heating process, a dewatering process and a drying process of the second washing drum not to be executed at the same time.

Abstract: A multi-drum washing machine drainage control method, the multi-drum washing machine at least comprising a first washing drum and a second washing drum; the method comprising: when the first washing drum reaches a drainage process, determining whether the second washing drum is draining; if yes, then the first washing drum waits for the second washing drum to finish draining before starting to drain; and if not, then determining whether the first washing drum waits for the second washing drum to finish draining before starting to drain. Alternatively, when the first washing drum reaches the drainage process, determining whether the second washing drum is draining or dehydrating; if yes, then the first washing drum waits for the second washing drum to finish draining before starting to drain; and if not, then determining whether the first washing drum waits for the second washing drum to finish draining before starting to drain.

Abstract: A self-cleaning drum washing machine, comprises a coaxial drum and outer tub. Cleaning particles are arranged between the drum and the outer tub. Structures between the drum and the outer tub opposite to each other are smooth. A flange is fixedly connected to the bottom of the drum; the outer portion of the flange has a smooth structure or an enclosed cavity is arranged on the outer portion of the drum bottom; the flange is arranged in the cavity; a shaft hole is arranged at the center of the cavity; and a drum shaft sticks into the cavity through the shaft hole and is connected to the flange. The smooth structures go against the attachment of dirt, so that the outer wall of the drum and the inner wall of the outer tub can be conveniently cleaned by the cleaning particles.

Abstract: A drum washing machine is provided with a double spraying system used for washing the window and the window gasket ring respectively. A first spraying nozzle is connected with the inlet solenoid valve of the washing machine to wash the outer surface of the watching window and the window gasket ring, and a second spraying nozzle to wash the folded inner wall of the window gasket ring. The spraying nozzles are connected to the solenoid valve through a three-way pipe, or connected to the solenoid valve of the washing machine through respective pipes. The double spraying system intakes water and soaks the clothes in the washing process, and/or intakes water and sprays the watching window and the window gasket ring simultaneously, and/or sprays the watching window and the window gasket ring when dehydrating the clothes in the dehydrating process.

Abstract: A clothes dryer comprises an inner drum, an outer drum, an air heating and supplying means and an air duct, and at least two air chambers each in communication with the air duct. The air chambers are respectively arranged corresponding to two sides along which clothes rise or fall as the inner drum rotates, the air chamber at one side starts supplying air and the air chamber at the other side stops supplying air according to a rotation direction of the inner drum, all air chambers are distributed in the order of front and rear of the outer drum in an axial direction, and the rotation direction of the inner drum is controlled according to the distribution of the air chambers, such that air is supplied in different positions corresponding to the front part and the rear part of the inner drum at different clothes drying stages, in order to dry clothes.

Abstract: An external air-cooled heat exchanger includes two air channels going towards different directions and not connecting with each other, a condensing wind channel and an external air channel. Each air channel has a plurality of air chambers that are alternately arranged so that between each two neighboring air chambers of the same air channel is an air chamber of the other air channel change to a period; A clothes dryer includes an air outlet connected to the heat exchanger. The heat exchanger is connected to a water collection box, the water collection box is connected to an air inlet, a filter is arranged between the air outlet and the heat exchanger, and a drying fan and the heating unit are arranged between the water collection box and the air inlet.

Abstract: A drum washing machine is provided with a double spraying system used for washing the window and the window gasket ring respectively. A first spraying nozzle is connected with the inlet solenoid valve of the washing machine to wash the outer surface of the watching window and the window gasket ring, and a second spraying nozzle to wash the folded inner wall of the window gasket ring. The spraying nozzles are connected to the solenoid valve through a three-way pipe, or connected to the solenoid valve of the washing machine through respective pipes. The double spraying system intakes water and soaks the clothes in the washing process, and/or intakes water and sprays the watching window and the window gasket ring simultaneously, and/or sprays the watching window and the window gasket ring when dehydrating the clothes in the dehydrating process.