Medium Frequency Seam Annealer for Tube Mill Line

  Product compositionMedium frequency seam annealer for tube mill lineDescriptionCompositionQty.Medium frequency seam annealer for tube mill line(2 sets)Rectifier cabinet3Inverter resonant cabinet3linear plane type inductor 32-D positioning table 3water-water cooler3Console (with HMI touch screen)1infrared thermometer1Product IntroductionRectifier cabinet1) Rectify the power grid 3-phase power frequency power supply to stable 500V DC voltage and supply it to the inverter resonant cabinet.2) The rectifier cabinet is equipped with multi-function digital meter.3) Install 3-phase fully controlled thyristor rectifier bridge to realize power regulation.4) Install smoothing reactance, smoothing capacitor and filter to improve smoothing coefficient.5) Siemens S7 series PLC is installed to realize power logic control and Ethernet communication functions.  Inverter resonant cabinet1) The optimized IGBT power unit box structure realizes excellent current sharing effect of multiple IGBT modules in parallel.2) The power unit adopts the latest designed IGBT drive board with higher stability and reliability.3) Adopt optimized matching transformer and busbar of tank circuit capacitor cabinet.4) The matching transformer is redesigned and optimized. 5) The cabinet is equipped with a water-cooled condenser.6) The cooling water pipes inside the cabinet are all designed in the way of rubber hose and hose clamp fastening.    Control desk1)Adopt stainless steel operation penal, with beautiful appearance and easy to clean.2)Add touch screen protective cover to improve the service life of touch screen.3)Siemens S7 series PLC and 10'' colorful touch screen are used in the control desk, which can display accurately and intuitively and control one set M.F. power supply.4)The touch screen of the control desk has data recording function for important parameters and information.5)It has the functions of remote operation, power regulation, state monitoring and fault diagnosis for the seam annealer. 6) The control desk and the MF power supply adopt the Ethernet communication to form the distributed control.7) The control desk can adopt temperature closed loop system.8) It has the functions of automatic real-time temperature collection, recording and storage. 9)Ethernet interface is reserved to facilitate the user's function expansion and realize remote monitoring and information collection.  Water-water coolerThe water-water cooler completes the cooling of heating components such as the rectifying bridge, flat-wave reactor, inverter bridge, and resonance tank circuit, and is designed with water temperature indication and protection. Adopt water-water heat exchanger. The characteristics are:Purified water circulates, the water quality is clean without scale in pipelines, which greatly reduces the operation faults of the equipment..Closed cycle circulation, no impurities entering, no moss, the pipeline will not be blocked.Small size, good integrity and convenient installation.Closed water circulation with little water consumption.It can avoid the malfunction caused by condensation water in summer.Small size water storage tank, and antifreeze can be used in winter to avoid water failure caused by freezing.It is more economic than an air-water cooler.Adopt stainless steel water tank and in-line pump.   2-D positioning tableThe positioning table is designed as a 2-D adjustment mode to support the inverter resonant cabinet and fixed the inductor. 1) The positioning table is installed with a forward and backward moving track perpendicular to the production line. 2) The hand wheel that moves back and forth is placed on one side of the inductor to adjust the weld center. It is flexible and labor-saving.3) The large cylinder type fast lifting mechanism is adopted.4) The upper/lower limit of the positioning table can be adjusted, and the limit switch can be adjusted according to the actual situation on site.5) The positioning table is equipped with a counterweight to match the center of gravity of the inverter resonant cabinet and inductor at two positions with the center of the frame.  Plane type inductorAdopt plane type inductor (with installation of high efficiency water cooling silicon steel sheet magnetic conductor) to realize the power transmission required by seam annealing. The distance from the inductor to the steel pipe shall be adjusted by the operator.   High precision infrared pyrometerAccurately measure the annealing temperature of steel pipe welding seam, and form a temperature closed-loop control system together with PLC. Pyrometer is used for temperature control, with features of fast speed, accurate temperature control and flexible combination, etc.    Measures for high efficiency and energy savingInverter adopts 450A/1200V high-power IGBT module to form series inverter circuit.The IGBT medium frequency annealing power supply adopts split type independent design of rectifier and inverter, i.e., the high-power rectifier is used to co