Steam spraying apparatus and clothing drying machine including the same

Abstract

Provided are a steam spraying apparatus and a clothing drying machine including the same. The steam spraying apparatus includes a flow passage forming unit, a steam generating heater, and a nozzle. The flow passage forming unit has a flow passage for guiding water introduced through an inlet to an outlet. The steam generating heater applies heat to water flowing along the flow passage. A nozzle sprays steam generated by the heating of the steam generating heater at a certain pressure. The steam spraying apparatus can reduce the time and the energy consumption for steam spraying and prevents water scale and pollution.

Description

technical field [0001] The present invention relates to a steam injection device and a clothes dryer including the steam injection device. Background technique [0002] In general, a steam injection device generates steam by applying heat to water and injects the steam. In a typical steam injection device, water is contained in a specific container and heated until steam is generated through a phase change of the water. Thereafter, the generated steam is guided to the nozzle through a hose connected to the container, and then sprayed. [0003] In this type of steam injection device, while the water is stored in the container (ie still in the container), the water is heated until steam is generated. In this case, all of the water needs to be heated to a temperature of 100 degrees Celsius or higher to generate steam, so it takes a long time to generate steam. Also, since the part (container) where steam is generated is connected to the nozzle through a hose, the generated s...

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Problems solved by technology

In this case, the entire water needs to be heated to 100 degrees Celsius or higher to generate steam, so it takes a long time to generate steam

Also, since the part (container) where steam is generated is connected to the nozzle through a hose, the generated steam will condense due to heat loss while passing through the hose, so what is sprayed out through the nozzle may be condensed water

[0004] At the same time, since the injection pressure of the nozzle depends entirely on the volume expansion in the container due to the generation of steam, the injection pressure may not reach the desired level

In particular, when typical steam injection devices are applied to washing machines and dryers with structural limitations, since the drum loaded with laundry rotates, the nozzles are inevitably provided outside the drum, so the steam injected from the nozzles can't reach clothing

Also, even if the steam reaches the clothes, the clothes may be damaged due to the high temperature steam

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