Vacuum defoaming device for oil tank

An oil tank vacuum defoaming device comprises an oil tank, an oil inlet, an oil outlet, an air inlet and an air outlet are formed in the oil tank, a partition plate is fixedly connected in the oil tank and divides the oil tank into a first oil bin and a second oil bin, a piston is installed on the partition plate in a sliding mode, and the capacity of the first oil bin and the capacity of the second oil bin are changed by driving the piston to move. The negative pressure is formed in the first oil bin or the second oil bin, dissolved air of oil in the negative pressure oil bin is separated out, then the separated-out air and air in the oil tank are discharged out of the device together, operation is convenient, the bubble removing efficiency is high, and the content of bubbles in the oil is greatly reduced. 一种油箱真空消泡装置，包括油箱，在油箱上成形有进油口、出油口、进气口和排气口，油箱内固定连接有隔板，将油箱分隔为第一油仓和第二油仓，隔板上滑动安装有活塞，通过驱动活塞移动，改变第一油仓、第二油仓的容量，以在第一油仓或第二油仓内形成负压，使得负压油仓内油液的溶解空气析出，再将析出的空气与油箱内的空气一同排出本装置外，操作便利，除泡效率高，并且大大降低了油液内气泡含量。