Squeeze pump has been used in the industrial sector for many years, and the earliest original designs can even be traced back more than half a century ago.
Firefighters, first in the U.S. state of Kang Benedict, used the pump to transport lime slurry. Squeeze pumps belong to the category of peristaltic pumps. Peristaltic pump is a kind of rotor volume pump, because its working principle is similar to the digestive tract in the creep mode of conveying gas, solid, liquid three-phase medium and named. There is no strict distinction between squeeze pumps and peristaltic pumps. In general, peristaltic pumps refer to small flow rates (in ml/sub-meters), low outlet pressure (no more than 3kg/cm2), and are mostly used in the health sector and laboratory metering.
Squeeze pumps refer to large flow rates (up to 80 cubic meter/h), high output pressure (up to 16kg/cm2), and are mostly used for large flow transport and metering in industrial applications. The designer and user of a squeeze pump is primarily valued for its ability to deliver strong abrasive media.
It is valveless, unsealed, the only component in contact with the medium is the inner cavity of the rubber hose, and the rotor of the compression hose is completely independent of the medium.
In addition, the squeeze pump has many unique features: No other pump species than the squeeze pump has a better self-suction capacity, can produce almost perfect vacuum to suck liquid, transport gas-containing liquid, foam liquid without gas resistance, transport high viscosity, shear sensitive medium is also a strength, each fixed displacement and independent of the outlet pressure, is a natural metering pump.
Various advantages, so that squeeze pump more and more widely used in mining, food processing, brewing, ceramics, water treatment and other industries. A high-quality squeeze pump life in 7-10 years, the biggest challenge lies in the squeeze pump HOSE, it is the core component of the squeeze pump, its life is directly related to the cost of pump use.
It can be said that the squeeze pump design is around the maximum hose life to carry out. Some people intuitively believe that the abrasive nature of the medium determines the service life of the hose, which is a misconception. The abrasive medium does wear on the inner wall of the hose, making the known wall thickness of the hose thinner, resulting in internal leakage or backflow and decreased flow due to lax compression.
The internal leakage further increases the wear speed of the inner wall, but the high quality squeeze pump should have a hose compression adjustment device, Constant adjustment is required during the use of the pump to prevent internal leakage and decreased flow.
The life of the hose is the same without regard to the compatibility of the conveying medium and the hose material, the conveying of strong abrasive medium and non-abrasive mucus. In fact, in addition to the glue and manufacturing quality of the hose itself, the primary factor determining the life of the hose is the number of times the hose is compressed, and the second factor is the way in which the hose is compressed, the strength and the resulting friction heat. In other words, the failure of the hose is due to the accumulation of compression times and the fatigue aging caused by rubbing heat.
The best way to maximize the life of the hose and extend the separation during downtime is to reduce the number of compressed hoses, the compression of the minimum damage to the hose and the precise compression strength.