Basic information for metering pump

metering pump can be measured by liquid of mechanical transmission, also called quantitative pump and proportional pump. Metering water pump is a kind of can meet the demand of all kinds of strict process flow, flow can be 0 Within the scope of 100% stepless adjustment, used for conveying liquid ( Especially the corrosive liquid) A special volume pump. Metering pump, also known as quantitative pump or water pump. Metering pump belongs to a reciprocating positive displacement pump, used for metering, stability precision metering pump usually need not more than plus or minus 1%. Along with modern industry towards automation, automatic remote control the continuous development of the situation, metering pump the sex is strong, adapt to the medium ( Liquid) A wide range of advantages particularly is unique. A metering pump, metering pump structure and working principle of the structure and principle: metering pump model by transmission frame parts, the pump head and motor of three parts. Transmission frame components are driven by a motor and worm rotation, through the worm gear, the sleeve, pass power to N shaft. N shaft and eccentric block, drive the connecting rod and crosshead driving plunger reciprocating motion; By N adjusting mechanism to adjust rotating eccentric shaft and trip to adjust the stroke of plunger, so as to adjust the flow; As the piston within the cylinder reciprocating motion, suction, exhaust valve group alternately opening and closing, liquid was constantly suction and discharge hydraulic end; Liquid pump in the intake stroke, pump cavity is formed in the negative pressure, open the suction valve, liquid flow into the cylinder chamber; In the exhaust stroke, increased the pressure on the movement of the plunger in the liquid, open the discharge valve the liquid discharge. Metering pump working principle of the metering pump is mainly driven by power, fluid transmission and regulation of three parts. Driving device via a mechanical link system drives the fluid conveying diaphragm reciprocating motion: mechanical diaphragm metering pump diaphragm ( The piston) Yu Chongcheng first half of the week will be conveying fluid intake and a half weeks after the fluid discharge water pump head; So, change the reciprocating movement of the stroke frequency or every time of reciprocating motion stroke length can reach to the purpose of regulating fluid throughput. Precision machining precision to ensure the pump out every time to achieve the precision measurement of medium to be delivered. Second, the classification of the metering pump because of its power drive and the different methods of fluid conveying, metering pump can be roughly divided into pillars and diaphragm metering pump pump two kinds big. Category 1: according to the flow part 1, 2, mechanical diaphragm piston, piston type 3, the hydraulic diaphragm type classification 2: according to the driving mode 1, 2, 3 electromagnetic drive, pneumatic motor driving category 3: according to the working way 1, 2, 3, gear type rotary reciprocating