In order to better make itself look more normal, the normative actual operation and application of magnetic pumps seem to be very important. The actual operation of the standard should start with inspection and testing and start the program process, in order to better enable everyone For a more convenient application of magnetic drive pumps, let's talk about the use and temperature attention of anti-corrosion magnetic drive pumps.
1. Inspection and opening during application of anti-corrosion magnetic pump
1. Grouting and exhaust: In order to better enable the anti-corrosion magnetic pump to work normally, it is necessary to adequately grouting and exhaust. Before starting the pump, the pump should be filled with liquid, open the pump inlet and outlet gate valve, needle valve gate valve, the pump body and the gas in the bronchus should be vented, and the pump should be vented several times until the pump is filled with liquid. After the liquefied petroleum gas is full, close the pump inlet and outlet gate valves.
2. Start-up procedure: If the magnetic coupling is started under unsuitable conditions (for example, the rated power of the motor is too large, the gate valve at the entrance and exit is opened too large, or the working voltage is high), the larger torque of the magnetic coupling will be exceeded, causing The pump cannot work properly, so be sure to start it properly. The start-up procedure is as follows: completely open the gate valve of the inlet pipeline; close the gate valve of the inlet and outlet pipelines; start the motor; slowly open the gate valve of the inlet and outlet pipelines; adjust the inlet and outlet valves until the normal pressure is reached; in order to make the pump work normally, the pump should be allowed Within the scope of work.
3. Stop the program flow: when stopping, first turn off the pump inlet and outlet gate valves, then cut off the power, and then turn off the pump inlet valve.
4. Restart the program flow after stopping: When restarting after stopping, open the bronchial gate valve to the outside first, vent the gas in the pump and condenser, fill the pump so that the pump casing and suction pipe are filled with liquid.
5. Adjustment of the total flow of the refrigerant: use a needle valve to adjust the total flow of the refrigerant.
6. Common problems during operation: The anti-corrosion pump must not be allowed to work when the liquid is cut off and when the gate valve of the inlet and outlet pipes is closed, otherwise the rolling bearing will be burnt. Be sure to work at the same time as the motor. If the pump fails (the pump head is not large), it means that the torque speed of the magnetic coupling has been exceeded. It should be prevented from working for a long time under unsuitable working conditions. Under normal working conditions, vibration, loud noise and increased output power indicate that the rolling bearing is worn out and should be inspected immediately. If there are solid particles in the substance, the filter should be modified at the inlet of the pump to prevent scratches or cuts on the protective sleeve.
2. Suitable temperature for application of anti-corrosion magnetic pump
The scope of application of magnetic pumps is very common, and it is something everyone knows. However, there are very few people who care about the suitable temperature for the application of magnetic pumps. So, what is the suitable temperature of the magnetic pump?
Under normal conditions, the magnetic pump is: -20℃~100℃. In other words, in the case of the application of anti-corrosion magnetic pump, if the temperature exceeds 100°C, or if the temperature is less than -20°C, it may seriously harm the application of the magnetic pump and reduce The efficiency of the magnetic pump. Therefore, in the case of the application of magnetic pumps, the working environment must pay more attention to the problem of the application temperature of the magnetic pump.
Because the drive shaft does not need to penetrate the pump casing, it uses the thin-walled driving torque of the magnetic field through the air gap and the isolation sleeve to drive the inner rotor, thereby eliminating the leakage channel shaft seal and realizing a complete seal.
In addition to the high requirements for magnetic materials and magnetic circuit design, other technical requirements are not high. The maintenance and repair workload of the anticorrosive magnetic pump is very small.