Why do automatic washing machines use peristaltic pumps

Why do automatic washing machines use peristaltic pumps

Features of fully automatic washing machine

Features of fully automatic washing machine
1.Various preparations, such as laundry detergent, need to be added regularly and quantitatively. 2. The detergent has a certain viscosity
3. It is necessary to avoid the pollution of detergent
Why use a peristaltic pump
1.The hose of the peristaltic pump can withstand various chemicals, there is no possibility of cross-contamination, and the sealing performance is good
2.Only the hose contacts the detergent in the whole process, avoiding the possibility of detergent pollution
3.The peristaltic pump can measure and transmit liquid with high accuracy, avoiding the phenomenon of wasting detergent or insufficient detergent
Precautions
1.The detergent has a certain viscosity, so when choosing a peristaltic pump, you should choose a suitable hose as much as possible
2.The pump relies on compressed hoses for fluid and transmission. When the pump is not working, the pressure block can be released to leave the house in a natural uncompressed state, extending its life.
3.When selecting the parameters of the pump, the theoretical flow rate is greater than the actual flow rate, generally greater than 30%. Because the pump tube is soft, it generates very little negative pressure and discharge pressure. If the liquid being conveyed has a certain viscosity or the pipe has a certain length, part of the actual flow will be lost. So in order to achieve the required flow, the theoretical flow should be slightly higher than the actual flow.
4.There are many types of peristaltic pump hoses, including imported hoses and domestic hoses. Due to the high wear and tear of the hose at the pump head, it needs to have good compression elasticity and tear resistance, and a special hose can be used, which can save the time of replacing the hose and increase the working time of the pump.
5.Pay attention to clean the sundries on the pump casing and hose during the use of the equipment. Since the peristaltic pump is a precision instrument, it mainly relies on the pinch roller to squeeze the hose. If the inflowing liquid sticks to the pressure roller and pressure block due to hose damage, it will change the compression gap of the pump head. Even small changes can cause premature hose wear, which will affect pump usage.
6.On the premise of satisfying the flow rate during model selection, the pump speed can be reduced to below 300 ppm. The flow of the pump is determined by the speed of the impeller, and if it is rotated too fast, the loss of the hose will be increased. Therefore, you can choose a pump with a larger diameter, thereby reducing the speed of the pump.
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