Understanding the washing principles of industrial hotel laundry equipment to enhance cleaning efficiency.-Jianghai Washing Machinery Factory, Tongzhou District, Nantong City

Understanding the washing principles of industrial hotel laundry equipment to enhance cleaning efficiency.

2021-05-26

　　Laundry plant washing equipment boasts high efficiency and a superior cleaning rate, making it an invaluable asset for many businesses. To achieve perfectly clean results,

　　The washing process in a washing machine primarily relies on mechanical actions—such as agitation, rinsing, and scouring—combined with the wetting and dispersing effects of detergents to lift dirt from fabrics and carry it into the wash water, thereby achieving cleanliness. Smart, fully automatic washing machines can also automatically assess water temperature, water level, fabric type and load size, as well as the degree of soiling, to determine the appropriate amount of detergent to dispense and select the optimal wash cycle.

　　Next, let’s explore how industrial laundry machines used in hotels operate:

　　Front‑load hotel‑grade industrial washing machines all employ microcontroller‑based control systems; traditional mechanical controllers have largely been phased out. The control programs of various models from different manufacturers vary. The degree of soiling is assessed by measuring the water’s transparency. An infrared photoelectric sensor is installed at the drain outlet of the wash tub, allowing infrared light to pass through the water and reach a receiver on the opposite side. If the water’s transparency is low, the receiver detects less light, indicating that the laundry is relatively dirty.

　　The pulsator-type industrial washing machine features a stainless steel inner tub, which reduces friction between the laundry and the tub walls, thereby minimizing fabric wear. During the spin cycle, it employs a piezoelectric sensor: as the spin drum rotates at high speed, water ejected from the drum exerts pressure on the sensor, and the machine automatically halts the spin cycle in response to changes in this pressure.

　　Concentric washing involves directly mounting the motor shaft and the drum’s main spindle in perfect alignment, enabling direct drive. This reduces drum vibration and lowers noise during both washing and spinning. As for the water‑filling and draining systems, wave‑type hotel and industrial washing machines employ solenoid valves for control.

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