A fluid flow system for a laundry appliance includes a blower that delivers process air along an airflow path having a heat exchanger. A drain channel receives condensate from the heat exchanger and fluid spray from a spray nozzle for directing lint particles to the drain channel and on to a sump for collecting fluid, including the condensate. A pump seat and a fluid outlet are integrally formed in a sump cover. A pump directs the fluid from the sump to the fluid outlet. A fluid level sensor detects at least minimum and maximum capacities of the fluid in the sump. When the fluid is below the minimum capacity, the pump defines an idle state. When the fluid reaches the minimum capacity, the pump defines an active state. When the fluid exceeds the maximum capacity, the pump directs the fluid to the fluid outlet.

Provided are a dryer and method for controlling the same, which may appropriately and efficiently dry objects thrown into a receiving space by using high frequency electric fields and heated air. In accordance with one aspect of the present disclosure a dryer includes a main body, a drum rotationally placed inside the main body, a driver provides rotational force to the drum, an electrode part produces an electric field inside the drum, a power supplier supplies power to the electrode part, an air heater heats air, a blower supplies heated air into the drum and a controller controls the power supplier to block power supplied to the electrode part depending on a dried state of an object contained in the drum, controls the driver to rotate the drum, and controls the air heater and the blower to supply heated air into the drum.

Improvement in heat exchange efficiency can be promoted, a heat exchange can be efficiently performed, a space can be saved, and drying time can be shortened. A washing and drying machine includes a drum configured to accommodate clothes, a motor configured to drive the drum, a tub configured to accommodate the drum and store washing water, and a circulation flow path configured to circulate drying air into and out of the drum. A circulation duct constituting a part of the circulation flow path is connected to a converging portion configured to converge drying air. A dehumidifier is installed in one or more duct systems of the circulation duct. The washing and drying machine further includes a controller configured to control the dehumidifier and two duct cleaning pipes installed in branch ducts and configured to supply water to the dehumidifier.

A method and apparatus for an adaptive heat pump clothes dryer is provided. The clothes dryer includes an air flow path, a plurality of sensors, a bypass and a hardware controller. The air flow path is configured to circulate air through the clothes dryer. The sensors are located at multiple points on the air flow path and are configured to detect a plurality of measurements. The bypass is located on the air flow path between an outlet of a drum and an inlet of a heat pump and is configured to divert an amount of the water vapor from the air flow path. The hardware controller is configured to control the amount of water vapor expelled from the air flow path by adjusting the bypass using a partial condensation fraction based on the plurality of measurements.

A laundry treating apparatus is disclosed. A laundry treating apparatus according to one embodiment of the present disclosure comprises: a cabinet; a tub provided inside the cabinet; a drum rotatably provided inside the tub and accommodating clothes; and a first temperature measurement unit and a second temperature measurement unit that are provided in the tub and measure air temperature inside the tub during a drying cycle for drying the clothes, wherein a water storage space for receiving water is formed on the bottom surface of the tub, the first temperature measurement unit is spaced apart from the water storage space and measures the temperature of dry air, the second temperature measuring unit is provided in the water storage space, and a protruding end protruding from the bottom surface of the tub toward the drum to measure temperature faces the drum, wherein the protruding end is exposed to air during the drying cycle.

A dryer including a main body; a drum inside the main body to receive an object for drying; a heat pump to supply hot and dry air to the drum, and including an evaporator, compressor, and condenser, wherein the evaporator, compressor, and condenser are configured to circulate a refrigerant through the evaporator, the compressor, and the condenser; a condensate tank to store condensate generated by the evaporator; and a connection pipe between the condenser and the evaporator, with at least a portion of the connection pipe being in the condensate tank, wherein the dryer is configured so that refrigerant that has been heat-exchanged with external air in the condenser, and discharged from the condenser, then passes through the connection pipe so as to additionally exchange heat with the condensate in the condensate tank while passing through the at least a portion of the connection pipe in the condensate tank.

The invention relates to a thermoelectric dehumidifier, comprising a housing and a thermoelectric module, wherein a middle partition is arranged in the housing, a cold end of the thermoelectric module is arranged on a front face of the middle partition, and a hot end of the thermoelectric module is arranged on a back face of the middle partition; the middle partition is also provided with a windshield comprising an air inlet end and an air blowing end which are communicated, heat dissipation air from the hot end enters from the air inlet end and is blown out from the air blowing end, and the air from the air blowing end blows to a surface of a refrigeration metal plate, so that condensed water drops on the surface of the refrigeration metal plate are accelerated to slide into improve condensation efficiency.

A heat pump clothes dryer comprising a circulating air path consisting of a drying drum and a drying air path for circularly flowing drying air; and a heat pump system consisting of an evaporator, a throttling device, a condenser and a compressor successively connected end to end for circularly flowing a refrigerant medium. The condenser and the evaporator are disposed on the drying air path, and perform heat exchange with the drying air. The compressor has independent suction compression chambers, each suction compression chamber being switchably connected in series or in parallel. When the dryer starts drying in a low-temperature environment, the suction compression chambers of the compressor operate in a parallel state, so that the air displacement of the compressor is increased to improve the flowing activity of the refrigerant medium in the heat pump system, so as to avoid occurrence of frosting of the evaporator.

The invention discloses a new embodiment concept and components for drying articles in an energy-efficient and effective way. The embodiment has a stationary drum accommodating a grid with several underneath nozzles at the bottom for blowing compressed hot air into articles and moving them within the space. A magnetron generates microwaves inside the drum for evaporating articles' moisture. A reciprocating compressor vacuums out the hot vapor and compresses it again in a high-pressure three-layer multifunctional tank after passing through a set of moisture separators to be reused by the nozzles in a closed cycle. Several low-maintenance and durable Membrane Dryers are used in parallel as a moisture separator unit before the compressor. Condensed and separated liquid is used in a heat exchanger to warm the makeup air needed for membranes. Nozzles' on/off states, the magnetron and compressor are controlled by a closed-loop digital controller for achieving an optimized drying process.

A drying apparatus having a structure capable of improving condensation efficiency, and a washing machine having the same. The washing machine including a cabinet, a tub installed inside the cabinet, a drum rotatably installed inside the tub, a condenser duct configured to condense moisture in air introduced from the inside the drum, a drying duct configured to heat the air introduced from the condenser duct and supply the heated air to the inside the drum, and a condensation water storage unit formed at a circumference of the condenser duct to store condensation water that is used to condense the moisture in the air moving inside the condenser duct.