：主电机功率1250KW，减速器工作效率95—96%，220#机械油，工作环境温度最高35℃，循环泵流量315L/min，要求油温全年控制在50度以下。 Customer: Design a lubricating oil hydraulic air cooler
: main motor power 1250KW, reducer working efficiency 95-96%, 220 # mechanical oil, working environment temperature up to 35 ° C, circulating pump flow rate 315L / min, oil temperature required throughout the year Control below 50 degrees. Please provide the required heat dissipation area and airflow value, and it is best to provide the approximate size of the heat sink. I think the heating power is calculated as 1250x5%.
Designer: This doesn't feel right?
Designer: It's better to understand clearly, it's so difficult to do something wrong. The temperature difference is only 15 degrees, and the ambient temperature is 35 degrees Celsius.
Customer: Is it too small?
Designer: Well, this is actually more difficult to do. It is recommended not to use air cooling. Our biggest radiator needs two, and the pump flow is not enough.
Customer: We originally used water cooling and wanted to change to an air cooler.
Designer: 220 # oil is more conservative than 50 degrees Celsius, but if you ask for it, I do n’t recommend it and waste it. It is better to try the plate type, the price is cheap, the maintenance is simple, and the cost is low.
Customer: The plate type uses water, and manufacturers like water cooling. Some manufacturers have difficulty in using water. Besides, when the water pipe bursts, all the oil is used up and the cost is too high. Manufacturers only need radiators, others are self-provisioned.
Designer: Let me calculate for you the largest air-cooled radiator in our company. Air cooling has a large investment at one time and requires less maintenance. Calculate it at 55 ° C, the oil temperature is low, and the equipment system is not efficient.
Designer: 135 kW. Our zb-150w, one can meet 10%, two in series can reach 16% ~ 17%. Increase the flow can be satisfied. Pottery machines are also used in this way. Increase the flow and connect 800L in parallel to 20% +.
Customer: I and the technical staff passed on.
Customer: Oh, it's 320 # oil.
Designer: OK ... then you must use the largest one. In fact, the difference is viscosity. 320 # does not seem to need to be controlled to 50 degrees. My customers use 70 degrees.
Customer: Just press this.
Designer: I'll actually tell you that this 100kw radiator is the original design standard, which is also the case when acceptance. Using two is enough to meet your requirements, unless the heat is particularly high.
Customer: Thank you, Liang Gong, I asked Jimu to dock with you.