The ironing machine can be divided into two types according to the lying flat heating method: drum heating and bottom slot heating
The drum heating system can be divided into three types based on different heating methods: steam heating, electric heating, and gas heating:
Steam heating type generally consists of components such as drum, steam inlet pipe, rotary sealing joint, condensate discharge pipe, drain valve, etc. Steam with certain pressure and temperature enters the drum through the steam inlet pipe, rotating sealing joint, and hollow shaft installed at one end of the stainless steel hollow drum. Heat the drum; A safety valve is installed next to the steam inlet pipe. When the steam pressure exceeds the rated pressure of the drum, the safety valve automatically opens and quickly releases steam to ensure the safety of the drum. When the drum is heated to above 140 ℃, the drum eye can be input into the surface of the drum for ironing.
During the ironing process, the moisture inside the linen is heated and evaporated into water vapor, which is introduced into the exhaust fan by the exhaust hood installed above the drum. The exhaust fan draws the water vapor outdoors. The drum is cooled due to the heat absorption of moisture inside the fabric. A portion of the steam is condensed into water, which is discharged from the drum through the condensate pipe and drain valve.
Electric heating generally consists of rollers, electric heaters, fixed frames, etc. Some structures that use indirect electric heating also require the use of thermal oil. The electric heater is fixed in the middle of the drum through a fixing bracket, and the heat from the electric heater is directly used to heat the drum. In an electric heater, several heating tubes are evenly divided into several groups, and the heating power can be adjusted during use.
Gas heating generally consists of a drum, burner, jet pipe, ignition device, control valve, exhaust system, and gas supply pipeline. The burner is fixed inside the drum, and the gas sprayed out by the jet pipe burns in the burner and heats the drum. The exhaust system timely discharges the generated waste gas and replenishes the air required for combustion.
The bottom groove heating system is mostly heated by steam, usually consisting of components such as drums, bottom grooves, steam inlet pipelines, drainage pipelines, and dehumidifiers.
The bottom groove is a semi-circular hollow container made of stainless steel, and steam with a certain pressure enters the bottom groove through the steam inlet pipe. When the bottom groove is heated to above 150 ℃, clothes can be ironed. The drum is installed in the bottom groove, with dense holes drilled on the surface, and the outer surface is covered with springs. The spring is wrapped in felt, and the felt adheres evenly to the inner circular surface of the bottom groove to ensure even contact with the inner surface of the bottom groove when it is inflated. One end of the drum is equipped with a hollow shaft, which is connected to a dehumidifier to extract the water vapor evaporated from the heated linen during the ironing process through the dense eyelets of drum E. The bottom groove is cooled due to the heat absorption of moisture inside the fabric, and a part of the steam is condensed into water, which is discharged from the bottom groove through the condensate pipe and drain valve.