Oil system of K-type factory compressor
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The sealing oil of the syngas compressor is controlled by the high-level tank. How is the sealing oil of the other two compressors controlled? 105J for example
105J is a mechanical floating ring seal, which is not sealed with sealing oil.
The function of the high level tank is similar to that of the 105-J oil and gas pressure difference. The 105-J adjusts the oil and gas pressure difference, while the 103-J relies on a high groove to stabilize the oil pressure.
Within what range is the oil-gas pressure difference generally controlled?
The seal of 105-J is a mechanical contact seal, and its working principle is: The main components of the mechanical contact oil seal are the moving ring and the stationary ring. The moving ring is fixed on the shaft. As the shaft rotates, the stationary ring contacts the inner surface of the moving ring under the action of its spring and can float axially. Between the movement and the stationary, a small amount of oil higher than the internal air pressure passes through, forming a thin oil film, which prevents gas from leaking along the sealing surface, lubricates, and cools the seal friction surface. Therefore, it is necessary to ensure that there is a certain pressure difference between the oil and the gas during operation so that the seal can work normally. This pressure difference adjustment task is achieved by an automatic adjustment valve. Its principle is to use the oil pressure after passing through the throttle orifice plate to decrease or increase as the flow rate increases or decreases. As shown in Figure 47, an automatic pressure difference regulating valve is installed on the sealing circuit. When the oil-gas pressure difference decreases, it will automatically turn down, reducing the amount of oil return, which will increase the pressure before the valve and the sealing oil pressure. ； On the contrary, the sealing oil pressure will be reduced. The setting value of this pressure difference is adjustable. When adjusting, use a wrench to tighten the compression screw to increase the pressure difference value. Otherwise, the pressure difference value will be reduced. Some can also manually adjust the oil return bypass valve of the sealing oil.
What is the specific pressure difference? Is there anything you should pay attention to when building the 105J sealing oil? Before building the sealing oil, does the cylinder need to be filled with a pressure greater than 0.05MPa like the 103J?
6# wanghaihuangong 105-J When building SO, the cylinder pressure must be greater than 0.05MPa! Otherwise, it is easy for oil to escape into the cylinder.
103-J is an oil seal, 105-J and 102-J are dry gas seals, and 101-J of course does not need to be sealed because its medium is air.