Application range and structure structure of stainless steel sanitary centrifugal pump
Application scope
Medicine: infusion, distilled water, high purity water, liquid and extract of traditional Chinese medicine containing particles (3-6 mm).
Cosmetics: dyes, alcohol and essential oils.
Drinks: alcohol, liquor, beer, malt juice, fermented juice, juice drinks, and granular drinks.
Dairy products: milk, butter, sugar, whey
Other: the candy industry, the baking industry, the chemical industry and so on.
The basic structure of stainless steel sanitary centrifugal pump is composed of six parts: impeller, pump body, pump shaft, bearing, seal ring, packing letter.
1, impeller is the core part of centrifugal pump. Its speed is high and output power is large. The blades on impeller play a major role. Impeller must be statically balanced before assembling. The inner and outer surfaces of the impeller are required to be smooth in order to reduce the friction loss of the flow.
2, the pump body also known as the pump shell, it is the main body of the pump. It serves as a supporting fixation and is connected to a bearing bracket.
3, the function of the pump shaft is to connect the coupling with the motor to pass the torque of the motor to the impeller, so it is the main part of the transmission of mechanical energy.
4, the bearing is a component that supports the pump shaft on the pump shaft, and there are two kinds of rolling bearings and sliding bearings. Rolling bearings use butter as a lubricant to be used as a lubricant to be properly 2/3 ~ 3/4 of too much volume will be hot, too little noise and heat!
The sliding bearing uses transparent oil as a lubricant and refuel to the oil level line. Too much oil should be exuded and drifting along the pump shaft, too little bearing and overheating and burning to cause accidents! During the operation of the pump, the temperature of the bearing is the highest at 85 degrees centigrade, generally running at 60 degrees. If we are high, we must find out the cause (whether there is impurity, whether the oil is blackened, whether it is water) and deal with it in time.
5, the seal ring is also known as the leakage reduction ring. The gap between the impeller and the pump shell will cause the pump within the high pressure zone of the water flow through the gap area of low pressure water pump efficiency and reduce the influence! When the gap is too small, the friction between the impeller and the pump shell will be worn out. In order to increase the return to reduce the internal leakage resistance and service life of the delay of the impeller and pump casing, junction with sealing ring in the pump casing and impeller aid, sealing gap should be between 0.25 ~ 1.10mm.
6, the filling letter is mainly composed of packing, water sealing ring, packing cylinder, packing gland and water sealing tube. The function of stuffing box is mainly to seal the gap between the pump shell and the pump shaft, so that the flow of the pump doesn't flow outside and the outside air enters the pump. Keep the vacuum in the pump all the time! When the friction between the pump shaft and the filler produces heat, the water seal tube is injected into the water seal to cool the packing. Maintain the normal operation of the pump. So in the operation of the pump circuit inspection of the packing letter inspection is to pay special attention! The packing should be replaced about 600 hours or so.
Stainless steel sanitary centrifugal pump is widely used in various (medium and low viscosity) solution delivery, such as dairy, beer, beverage, medicine, bioengineering, fine daily chemical industry. The pump has both single and single suction types. The pump shell and impeller are carefully designed, and the negative force is reduced, and the dead angle of health is completely eliminated. Therefore, the flow rate of the liquid in the pump is improved, and the overall performance of the pump is improved. It is easy to clean, disassemble and assemble conveniently, and has excellent hygienic performance. It can meet the requirements of products for sanitary flexible treatment, and has chemical resistance. The maximum temperature is about 80oC. The high lift pump is especially suitable for the application of the system with large resistance, such as tube sterilization, temperature holding equipment of yogurt, CIP cleaning and so on.
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