High-pressure reciprocating pump is a wider range of reciprocating pumps. It is mainly used in petroleum, chemical and fertilizer industries as a process pump, oil field, salt mine as a water pump, construction, shipbuilding, chemical industry, high-pressure cleaning descaling, steel pipe, pressure vessel as a test pump, booster pump. Such a wide range of applications mainly due to its performance characteristics. High-pressure reciprocating pump performance characteristics: 1, high-pressure reciprocating pump discharge pressure and structure size and speed has nothing to do. The maximum discharge pressure depends only on the pump itself power, strength and sealing performance. Motorized reciprocating pump flow almost nothing to do with the discharge pressure, but at higher pressures, due to the gas contained in the liquid dissolved in liquid, valve and packing leakage and other reasons, the pump flow slightly changes. Therefore, the reciprocating pump can not close the outlet valve to regulate the flow rate. When the discharge valve is closed, the motor is overloaded or the pump is damaged due to a surge in discharge pressure. 2, reciprocating pump with self-absorption capacity. Reciprocating pump without pumping before start-up, that is, to absorb liquid. However, in actual use, it is still hoped that there will be liquid in the pump cylinder, so that liquid can be sucked and discharged immediately. On the other hand, dry friction between the piston and the pump cylinder or the plunger (piston rod) and the filler can be avoided to reduce wear. Reciprocating pump suction capacity and speed, the speed is increased, not only to increase the loss of flow, and inertia loss also increases, causing suction pump pressure drop. When the pump cylinder pressure is lower than the liquid gasification pressure, part of the liquid will begin to vaporize in the cylinder, so that the suction pump fullness decreases, and even cavitation. Severe cavitation will lead to water hammer, so that pump parts damaged, shorten the life of the pump. 3, the instantaneous flow pulsation, the average flow rate constant. Because the suction and discharge of the liquid medium in the reciprocating pump take place alternately, the speed of the piston (or plunger) during the displacement is continuously changing. In a one-cylinder pump, the amount varies with time and is discontinuous. For the multi-cylinder pump, the phase of the cylinder is arranged rationally to reduce the pulsation amplitude of the instantaneous flow in the discharge pipe. However, the pulsation of instantaneous flow is inevitable. Theoretically, it can be considered that the flow has nothing to do with the discharge pressure and has no relation with the liquid's characteristics . Single cylinder pump intermittent output, not as uniform centrifugal pump, but because of its liquid is "one cylinder of a cylinder" discharge, it can be used to measure the amount of liquid delivery. 4, fluid-powered pump with safe and reliable features. Suitable for fire-proof, explosion-proof, blackout maintenance and power-free workplaces. 5, the flow can be accurately measured. Reciprocating pump flow can be accurately measured using a variety of regulatory agencies, such as metering pumps. 6, Motorized reciprocating pump for conveying high pressure, small flow of occasions.
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The bit change is very easy.Just push back chuck. Put up the bits and release the chuck.Working would be ready.
Before working.pls use correct bits.
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