Thin oil lubrication heating system of cross-cutting production line

Abstract

The invention relates to a thin oil lubrication heating system for a cross-cutting production line. It includes an oil pipeline, the output end of the oil pipeline is connected to the oil tank through a double cylinder filter and a pipeline heater, and a plate cooler is arranged between the output end of the oil pipeline and the double cylinder filter; the pipeline There is a pneumatic pressure regulating valve between the type heater and the oil tank. In the system described in the present invention, the heater is installed at the outlet of the oil supply pump, which improves the fluidity of the oil at the heater and improves the heating capacity of the heater system compared with the sleeve electric heater; The circulation loop, on the premise of meeting the heating capacity requirements of the system, reduces equipment investment costs and saves site space, and has a better application effect.

Description

technical field [0001] The invention relates to a thin oil lubrication heating system for a cross-cutting production line. Background technique [0002] Thin oil lubrication system is mainly composed of oil tank, heater, screw pump device, sewage gear pump, filter, pressure controller, cooler, temperature controller, pneumatic valve frame and pressure tank. The thin oil lubrication system is arranged with two oil tanks, one for use and one for standby. The lubricating oil is sucked out from the oil tank by the screw pump, delivered to the lubrication point of the equipment through the duplex filter and the cooler, after lubricating and cooling the equipment, it flows back to the oil tank through the oil return connection to complete a cycle. The pressure tank plays a role in stabilizing the voltage and providing instantaneous protection to the key equipment running at high speed in case of sudden accidents such as power failure. The system adopts the way of oil tank heatin...

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Problems solved by technology

In order to avoid overheating of the oil, the electric heater adopts the indirect heating method, that is, the electric heater has a finned bushing outside, and the bushing is filled with transformer oil, and the heated transformer oil realizes the heating of the oil tank. The function of the centralized lubrication system is to provide oil-sprayed lubrication to the gear boxes of the disc shears and edge cutters. When the room temperature of the plant is lower than 10°C, when the thin oil centralized lubrication system of the 300,000-ton cross-cutting production line is running, the heater will The following problems were exposed: 1. The sleeve-type electric heaters installed at the bottom of the fuel tank are densely arranged, the layout interval is small, and the fluidity of the oil at the heater is poor, which affects the heating effect; 2. The sleeve-type electric heaters Insufficient heating power of the electric heater causes the heater to be in the heating state for a long time, which seriously shortens the service life of the electric heater; 3. The oil temperature of the system is uneven, and the temperature of the oil tank reaches 40°C, while the oil supply temperature is only 30°C, which is different from the design temperature The difference is large. In addition, the local temperature around the heater sleeve is even as high as 70~80°C, which will aggravate the aging and deterioration of the oil.

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