Parker aluminum high-pressure pump blade pump - model 511

Parker aluminum high-pressure pump blade pump - model 511

energy-saving renovation
When the high-pressure pump is started, the current of the motor will be 5-6 times higher than the rated value, which not only affects the service life of the motor but also consumes more electricity When designing the system, there will be some margin in the selection of motors. The speed of the motor is fixed, but in actual use, it is sometimes necessary to operate at a lower or higher speed. Therefore, it is very necessary to carry out frequency conversion transformation. The frequency converter can achieve soft start of the motor, achieve energy-saving speed regulation by changing the input voltage frequency of the equipment, and provide protection functions such as overcurrent, overvoltage, and overload for the equipment. There are well-known frequency converter manufacturers in China, such as Sanjing and Envision

Parker aluminum high-pressure pump blade pump - model 511

Operating Procedures
1. Check if the gearbox oil tank, high-pressure pump oil level, and emulsion tank water level are at the specified levels.
2. Check whether the safety valve, pressure gauge, electric contact pressure gauge, water level gauge, and liquid level indicator are sensitive and correct; Pressure gauges and safety valves should be calibrated once a year, and safety valves should undergo regular exhaust tests to prevent valve core adhesion and valve hole blockage.
3. Check all parts of the water pump, including valves, solenoid valves, pipelines, etc., to ensure that there is no water leakage, air leakage, or oil leakage. Also, check if the electrical neutral (ground) wire is secure and reliable. When the pump is stopped for more than a week, measure if the insulation of the main motor is good; Check if the communication signal with the hydraulic press is correct and reliable. 4. Pump opening sequence:
(1) Check if all valves, suction valves, and circulation gate valves on the water pump, storage tank, and pipeline that need to be started are in the open position. Open the pump head vent valve of the high-pressure pump and the cooling water valve of the lubricating oil pump;
(2) Start the lubricating oil pump and run it for 1-2 minutes. The oil pressure should be between 0.15 and 0.2 megapascals. After the lubricating oil indicator light shows normal, start the main motor of the high-pressure pump;
(3) After the air in the pump head is exhausted, immediately close the exhaust valve;
(4) After the high-pressure pump is running normally, close the power supply of the circulating valve electromagnet, plug in the pressure power plug, and wait for the water level to rise above level 4. Close the low liquid level valve electromagnet switch. When the water level reaches level 7 (according to the pump room design, a "can work" signal can also be sent in advance), send a "can work" signal to the hydraulic press, and the hydraulic press will start working.
When opening and closing the valve, stand on the side of the valve stem and rotate slowly.
6. Do not leave the work post during work, closely monitor and control the instruments and water level indicator lights to ensure they are normal. If false water level occurs, immediate measures should be taken, and all equipment should be inspected every 10-15 minutes. Record the operating conditions every hour. The oil temperature and bearing temperature should not exceed 50 ℃, emulsion temperature should not exceed 60 ℃, cooling water temperature should not exceed 40 ℃, and motor temperature should not exceed the rated temperature rise.
7. If overpressure is found, immediately unplug the pressure plug and cut off the main power supply. After the water level drops to normal, notify the hydraulic press to stop working. Work can only continue after repairs have returned to normal.
8. Use soapy water to check if there is any air leakage in the storage tank, air valve, and air pipe. If there is condensation or frost (water), it indicates a serious air leakage and should be repaired in a timely manner. If you want to thaw, do not use open flames.
When the following situations are found, press the "emergency stop" button to immediately shut down and cut off the relevant valves that need to be closed, and send an "emergency stop" signal to the hydraulic press.
(1) When encountering overpressure or overheating that cannot be reduced through measures taken;
(2) When there is abnormal noise or vibration;
(3) When the pressure gauge, electric contact pressure gauge, and liquid level indicator display incorrectly or malfunction;
(4) When serious water leakage suddenly occurs and cannot be blocked;
(5) When the solenoid valve control fails to function.
10. Pump shutdown sequence:
(1) After receiving the "stop request" signal from the hydraulic press, immediately send back the "stop allowed" signal to the hydraulic press;
(2) Fill the water level of the storage tank to level 7 or above;
(3) Unplug the pressure plug and cut off the power supply of the low liquid level valve electromagnet;
(4) Cut off the power supply of the water pump and do not stop the pump with load;
(5) After the high-pressure pump stops running, cut off the power supply of the lubricating oil pump and close the lubricating oil cooling water valve.
When inflating the water (gas) storage tank, the operation of the high-pressure pump should be stopped, and the "Safety Operating Regulations for High Pressure Air Compressors" should be followed during inflation. 12. Do not strike equipment, containers, pipelines, valves, etc. that are under pressure. During disassembly, maintenance, and adjustment, it is necessary to unload the pressure and cut off the power before starting work.