Characteristics and application of micro once through water pump
definition
The definition of water pump (water pump) is generally referred to as pump, which is used to lift liquid, transport liquid or increase pressure of liquid, that is to change mechanical energy of prime mover into liquid energy, so as to achieve the purpose of pumping liquid
summary
Micro direct current water pump is generally composed of driving part and pump body. There are two interfaces on the pump body, i.e. one inlet and one outlet. Water enters from the water inlet and exits from the drainage outlet. All pumps with small volume and small size in this form are called micro water pump, also called micro pump.
texture of material
Water pump is to transport liquid or pressurize the liquid machinery. It transfers the mechanical energy or other external energy of the prime mover to the liquid so as to increase the energy of the liquid, which is mainly used for conveying liquid, including water, oil, acid-base fluid, emulsion, suspending emulsion and liquid metal, etc., and can also transport liquid, gas mixture and liquid containing suspended solids. The technical parameters of measuring pump performance include flow, suction head, head, shaft power, water power, efficiency, etc;
NBR, neoprene, fluororubber and polytetrafluoroethylene were used according to different liquid media. To meet the needs of different users. Chemical, electronic, ceramic, textile, paint, pharmaceutical machinery system units used, placed in a special situation, used to pump a variety of conventional pumps can not pump media.
According to working principle:
It can be divided into diaphragm type, piston type, magnetic drive type, gear type positive displacement pump, vane pump, centrifugal pump, axial flow pump and mixed flow pump
The positive displacement pump transfers energy by the change of its working chamber volume;
The vane pump uses the interaction between rotating blades and water to transfer energy,
There are centrifugal pump, axial flow pump and mixed flow pump and other types.
According to the control principle, centrifugal pump can be divided into AC pump, brushless DC pump, brushless DC motor pump and brushless DC magnetic isolation pump.
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According to whether put in water or not:
It can be divided into submersible pump and non submersible pump, such as DC micro submersible pump and DC micro self suction DC pump
The definition of micro water pump: usually lift the liquid, transport the liquid or increase the pressure of the liquid, that is to change the mechanical energy of the prime mover into liquid energy, so as to achieve the purpose of pumping liquid.
Main features:
1. Small size, high efficiency, long life and low noise;
2. Ceramic shaft core, carbon fiber graphite shaft sleeve, super wear resistance;
3. Mortality is less than 0.5%
4. No carbon brush, no wear, electronic commutation
5. Water and electricity isolation, epoxy resin pouring, completely waterproof, anti leakage;
6. It can run continuously for 24 hours;
7. No oil, no pollution of working medium, maintenance free, installation in any direction;
Application fields of micro once through water pump:
1. Automobile industry: used for cold start of automobile engine below - 40 ℃ in winter, circulating heat dissipation of fuel engine antifreeze at 120 ℃ and water circulation cooling of electric vehicle and electric motorcycle.
2. Solar photovoltaic energy products: solar water pump is directly driven by solar panel to work. Solar water pump has three major functions: (1) energy saving, 35% energy saving than ordinary DC brush pump; (2) soft start function, which can be started normally within 1W; (3) convenient setting of overvoltage protection function.
3. Food industry: it is mainly used for dishwasher, coffee pot, water dispenser, and the shell of water pump can be made of special food grade high temperature resistant materials, and the water pump can work continuously for more than 100 degrees. It can reach food grade.
4. Household products: aquarium, fountain, foot bath, shower, water heating mattress, computer water cooling system, etc.; DC brushless water pump has the characteristics of low noise, long service life and good pressurization effect, which can fully meet the above requirements.
5. Mechanical equipment and chemical products: machine tool equipment water circulation heat dissipation, water chiller circulation heat dissipation, sewage purification treatment and other industries.
6. Mechanical equipment and chemical products: machine tool equipment water circulation heat dissipation, water chiller circulation heat dissipation, sewage purification treatment and other industries.
7. Household appliance industry: micro DC water pump is mainly used for dishwasher, coffee pot, drinking machine. The shell of water pump can be made of special food grade high temperature resistant material, and the DC pump can work continuously for more than 100 degrees. And it can reach food grade
Precautions for use
1. Prevent particles from entering (1) no ferromagnetic impurities and particles are allowed to enter the magnetic actuator and bearing friction pairs; (2) wash the medium that is easy to crystallize or precipitate (fill the pump cavity with clean water after stopping the pump, and discharge it after running for 1 min) to ensure the service life of the sliding bearing; (3) when conveying the medium containing solid particles, it should be filtered at the inlet of the pump flow pipe.
2. To prevent demagnetization, the demagnetization should be operated under the specified temperature conditions, and the medium temperature should not exceed the standard. A platinum resistance temperature sensor can be installed on the outer surface of the magnetic pump isolation sleeve to detect the temperature rise in the annular gap area, so as to alarm or stop the machine when the temperature exceeds the limit.
3. Prevent dry friction and minimize idle time.
4. The pump installed below the liquid level is a centrifugal pump, which can not automatically exhaust air. It must be submerged or installed below the liquid level.
5. Reduce the idle time, the pump should not idle as far as possible, because there is no medium lubrication when idling, it is easy to wear.
6. Do not exceed the rated voltage, must be used under the rated voltage of the pump, there is overpressure or other functional requirements in advance.
