When the gas generating unit works, the cooling water enters from the water inlet of the front cover of the oil cooler, and passes through the inner copper pipe and flows out from the water outlet of the rear cover. The oil enters the oil inlet from the right lower side of the shell, passes through the gap between the aluminum wing tubes, flows back to the flow in the restricted direction of the clapboard, and flows out from the oil outlet at the left upper side of the shell. The oil is opposite to the cooling water flow, and the heat exchange is carried out by the copper tube and the aluminum fin tube, so as to reduce the oil temperature by cooling water.
There is a vent valve at the top of the oil cooler and the back cover of the oil cooler. When the circulating water is added to the gas generator set, it will be unscrewed. The air in the cooling water can be discharged to prevent the air blocking and affect the cooling effect.
The oil cooler of the front and the back cover below each have a drain screw and when the ambient temperature is lower than 5 DEG C, parking will drain plug and a bleed valve and turn on the net, can put the water in the oil cooler, to avoid freezing the brass, aluminum wing tube and the front and rear cover. Conditional users from one side drain plug or discharge valve seat hole connected with the pressure of the compressed air blowing inward 588kPa, 4-5 minutes, until the other side drain hole can not see the water spray out so far.
There is an oil plug on the top and bottom of the oil cooler shell. Before changing the filter element of the oil filter, the two oil plug is unscrewed at the same time, the oil in the oil cooler can be put off, so as to avoid excessive oil from the oil filter element pulling out and fouling the gas generator set.
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