5ton 30ton Electric Industrial Cast Iron Stainless Steel Copper Aluminum Scrap Smelting Metal Brass Bronze Intermediate Frequency Induction Melting Furnace
(12 pulse 3000KW double rectifying medium frequency power supply cabinet)
The type of medium frequency power supply for this electric furnace is KGPS3000KW/500HZ, and 12 pulse is used.Wave rectifying mode, and the line voltage is 660V.The core technology of the power supply is currently in the leading position in China.The power cabinet is composed of two low voltage switchgear, two rectifying cabinet and one inverter output cabinet.The whole cabinet is designed and manufactured for five doors, and the DC flat wave reactor is placed under the rectifying cabinet. The whole equipment is output in the middle of the cabinet and out of the line.The layout of the devices in the cabinet is reasonable and standard, fully considering the electrical efficiency of the equipment, the interference of the magnetic field and the maintenance and so on.
The wind water cooling system is the form of the closed cooling tower.The closed cooling system does not need to dig the pool, the site is used only to connect the interface with the equipment that needs cooling, and no other auxiliary equipment is needed.The whole circulation system is soft water, good water quality, no scaling and closed cycle, so that the loss of water is very small. Later, the cost of equipment use and maintenance can be greatly reduced.Because of the electrical part and the furnace body parts have different requirements on the water temperature, the furnace body temperature at 35-55 degrees away between the heat (energy minimum point relatively energy-efficient electrical part), requirement of water temperature is low failure rate is small, so the proposal uses two sets of closed cooling tower to separate cooling appliances part of the furnace body and the part. 1 Characteristics of closed cooling tower: (1) the FL series closed cooling tower is fashionable and beautiful, the internal structure is compact and the layout is reasonable. The outer shell plate is made of 2mm thick stainless steel plate by cutting, folding and flushing after cutting, folding and punching, and the size is accurate and smooth. (3) the coolers (main parts) are made from the international standard T2 deacidification purple copper tube, with less welding points and welding with silver electrode. (4) PVC high efficiency dehydrator can make the water escape rate less than 0.001%, making it possible to place the equipment in the sensitive area of water mist. (5)PVC high efficiency air entry grille, small wind resistance, reduced fan energy consumption and no splashing phenomenon of spray water, and sunlight can not irradiate inside the water tank, effectively prevent algae growth. (6)The pumping station by the main pump and standby pump, the main pump failure, the standby pump can start work immediately, make continuous water supply become possible.In the power outage, the emergency water pump of the gasoline engine can be selected for the users to complete the continuous cooling of the induction coil. (7)The fan blade is Aluminum Alloy, motor for the aluminum shell three motor, domestic brands; (8)The circulating water tank adopts 304 stainless steel plate, and is provided with an inlet liquid level alarm;; (9) Closed cooling tower in the water inlet is provided with a pressure display, a furnace body and a water inlet is also provided with a power supply pressure display (installation), can read through the differential pressure water pressure drop, so as to achieve effective cooling, to ensure the safety of the equipment in the water flow range; (10)The closed cooling tower, the water outlet is provided with temperature display and alarm function, and can adjust the digital temperature controller to control the opening and closing of the sprinkler system to achieve water temperature.The closed cooling tower can be cooled efficiently and efficiently for the medium frequency power supply and the furnace body in the specified water temperature range. The cooling circulation water circuit in the intermediate frequency power supply cabinet and the compensation capacitor group is connected by stainless steel pipes. The connection is reliable and the sign is obvious. It can withstand 1.5 times of the design pressure of the internal water without leakage.
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