Instruction
Spray pump station is mainly for coal mining and tunneling faces and other need to spray dust extinguishing provide power supply.Spray pump station by
Principle
Three plunger reciprocating pump spray pump is horizontal.Driven by three-phase ac quadrupole explosion-proof motor, gear reduction by level, three crank the crankshaft rotates, then through connecting rod, the slider driving plunger reciprocating motion, make the working liquid in the pump head is integrated by suction drainage suction and discharge valve group, so that the electrical energy into hydraulic energy, output pressure water for the use of coal winning machine.
Structure
Spray pump is mainly composed of crankcase, steel components, pump head, etc.On the drain cavity side of the pump head is equipped with safety valve, on the other side is equipped with the overflow valve.Above the liquid into the cavity cover is equipped with vent hole, in order to put the air cavity;At the bottom of the liquid into the cavity cover is equipped with antifreeze tap hole, can be put into the fluid cavity liquid.Pump head component is the hydraulic end of the pump.At the bottom of the pump head is equipped with three sets of suction fluid valve, the upper is equipped with three sets of drainage valve.Three high pressure cavity on the end of the gland are equipped with vent hole, to open pump or work should be put in the cavity of the air and Settings.Set of components, high pressure steel plunger seal for three rectangular sealing ring.
Operating guide
Before using the pump gear box, in accordance with the provisions and clean N68 machine oil, fuel must be in mesh opening to join.Oil level shall not be lower than the oil when the pump is running the glass of the red line but should be under the green line.Check each connecting pipe leakage phenomenon, if there is a fold liquid suction hose.Whether each part of the fastener is loose.
After they confirmed trouble-free in body fluid absorption cavity vent screw loosen, put the liquid chamber air, such as the liquid after tighten.Unscrew the overflow valve pilot valve regulating nut, and then point to move the power switch, to observe motor with the arrow direction are the same, as is shown in such as direction, should be correct after the electrical wiring, before starting.
Pump starts, loosen screw plug the vent screw, high pressure cavity is put high pressure air in the cavity, the liquid after tight, no-load running for 5-10 minutes, stay pump without abnormal noise, vibration, the phenomenon such as pipeline leak, can load using (gradually tighten the overflow valve pilot valve regulating nuts, make the pump station pressure nominal pressure or less).
