High-pressure pump workers operating procedures

1, check the retarder tank, high-pressure pump oil level and emulsion tank water level is in the provisions of the oil level and water level. 2, check the safety valve, pressure gauge, electric contact pressure gauge, water level gauge, liquid level indicator is sensitive and correct; pressure gauge, safety valve calibration once a year, the safety valve regularly exhaust test to prevent the valve core adhesion and Valve hole blocked. 3, check the pump parts, valves, solenoid valves, pipes, etc. are good, may not have leakage, leakage, oil spills, check the electrical connection zero (ground) line is solid and reliable, stop pump more than a week, to measure the main motor Insulation is good; check the hydraulic press contact signal is correct and reliable. 4, open the pump sequence: (1) to check the pump to start, water (gas) tank and pipeline valves, water suction valve, circulation valve, all in the open position, open the high-pressure pump pump head deflation valve and lubrication Oil pump cooling water valve; (2) start the lubricating oil pump, running for 1 to 2 minutes, oil pressure 0.15 ~ 0.2 MPa, until the indicator shows normal oil, start the high pressure pump main motor; (4) After the high-pressure pump is running normally, close the electromagnet of the circulation valve, plug in the power plug, and wait for the water level to rise above level 4, close the minimum liquid Face solenoid switch, the water level rose to 7 (according to the pump room design can also be issued in advance "can work" signal) to the hydraulic press issued a "can work" signal, the hydraulic press to work. 5, opening and closing the valve - to stand on the side of the stem, slowly rotating. 6, work should not leave work, closely monitor the control instrumentation and water level indicator is normal, such as the emergence of fake water level, should immediately take measures and every 10 to 15 minutes to inspect all the equipment tour again, record the hourly operation , Oil temperature, bearing temperature shall not exceed 50 ℃, emulsion temperature shall not exceed 60 ℃, cooling water temperature shall not exceed 40 ℃, the motor temperature shall not exceed the rated temperature rise. 7, found overpressure, immediately unplug the suppress plug, and cut off the total power until the water level down to normal, inform the hydraulic press to stop working. To be repaired back to normal, can continue to work. 8, check with soapy water (gas) tank, valve, trachea is leaking, if condensation frost (water), indicating serious air leaks, should be promptly repaired. To thaw, disable open flame. 9, found the following circumstances, press the "emergency shutdown" ammonium button, immediately shut down and shut off the valve to be closed, the hydraulic press issued an "emergency stop" signal. (1) In the case of overpressure, overtemperature, when adopted measures can not come down; (2) There is abnormal noise, vibration; (3) Manometer, electric contact pressure gauge, liquid level indicator is not correct or failure (4) A sudden serious water leakage can not be blocked; (5) Solenoid valve control failure does not work. 10, stop the pump sequence: (1) received a hydraulic press "request shutdown" signal immediately to the hydraulic press back "can stop" signal; (2) the water tank to supplement the water level above 7; (3) (4) Cut off the pump power, are not allowed to stop the pump with a load; (5) After the high-pressure pump stops running, cut off the lubricating oil pump power supply, turn off the oil cooling water valve. 11, When filling the water storage tank, stop the operation of high-pressure pump, and observe the Safety Operation Rules of High-pressure Air Compressor when inflating. 12, are not allowed on the pressure of equipment, containers, pipes, valves and other percussion. In the demolition, maintenance, adjustment, must be in the pressure relief and cut off the power before work.