Principle analysis of Dickow single-stage side flow pump SMV series with permanent magnet coupling
I. Introduction. DICKOW single-stage side flow pump SMV series with permanent magnet coupling is a high-efficiency fluid transfer equipment widely used in chemical, pharmaceutical, food processing, oil and gas and other fields. This series of pumps has the characteristics of compact structure, flexible operation and good sealing performance, which can meet the transportation requirements of various fluid media. In this article, we will analyze in detail the principle structure of the SMV series of single-stage side flow pumps with permanent magnet couplings.
Second, the working principle.
The SMV series of DICKOW single-stage side flow pumps with permanent magnet couplings uses a permanent magnet coupling as the driving device to transmit torque through the magnetic field force to realize the rotation of the pump. Specifically, a permanent magnet coupling consists of a permanent magnet and a conductive magnet, and when the permanent magnet rotates, the magnetic field in the conductive magnet changes, generating torque, which drives the rotation of the pump. This drive mode has the advantages of simple structure, convenient maintenance and high reliability.
3. Structural characteristics.
Pump body structure. The pump body of the Dickow single-stage side flow pump SMV series with permanent magnet coupling is made of high-quality stainless steel material, which has the characteristics of corrosion resistance and wear resistance. The inside of the pump body is equipped with a flow channel for conveying fluid media. The runner is designed with the smoothness and uniformity of fluid flow in mind to reduce fluid resistance.
Impeller structure. The impeller is the heart of the pump and is responsible for transporting the fluid medium from the suction end to the discharge end. The impeller of the SMV series of Dickow single-stage side flow pump with permanent magnet coupling is made of high-quality stainless steel material, which has the characteristics of high strength and corrosion resistance. The impeller is designed to take into account the regularity and characteristics of fluid flow for efficient and stable fluid transfer.
Sealed construction. The seal is one of the important parts of the pump and is used to prevent the leakage of the fluid medium. The sealing structure of the SMV series of single-stage side flow pumps with permanent magnet couplings adopts a combination of mechanical seals and packing seals. Mechanical seals have the advantages of good sealing performance and long service life, while packing seals can compensate for the shortcomings of mechanical seals and further improve sealing performance.
Drive structure. The drive structure of the SMV series of single-stage side flow pumps with permanent magnet couplings in Dickow uses a permanent magnet coupling as the driving device. The permanent magnet coupling has the advantages of simple structure, convenient maintenance and high reliability. The drive structure is designed with the stability and reliability of the pump in mind to ensure that the pump maintains good performance during long-term operation.
Fourth, the work process.
Initiation phase. When the DICKOW single-stage side flow pump SMV series with permanent magnet coupling is started, the control system sends a start-up command to the permanent magnet coupling. After receiving the command, the permanent magnet coupling starts to drive the rotation of the pump. During rotation, the impeller sucks the fluid medium from the suction end and transports it to the discharge end through the flow channel inside the pump body.
Normal operation phase.
When the pump enters the normal operation stage, the control system adjusts the permanent magnet coupling according to the actual needs to achieve precise control of the flow rate. At the same time, the control system will also monitor the operating status of the pump in real time, including the pump speed, flow, pressure and other parameters. If an abnormal situation is found, the control system will send an alarm signal in time and take corresponding measures.
Stop phase. When it is necessary to stop the DICKOW single-stage side flow pump SMV series with permanent magnet coupling, the control system sends a stop command to the permanent magnet coupling. After receiving the command, the permanent magnet coupling stops the rotation of the drive pump. At this point, the impeller stops rotating and the fluid medium no longer flows. At the same time, the control system cleans and maintains the pump to extend its service life.
Principle analysis of Dickow single-stage side flow pump SMV series with permanent magnet coupling