Screw compressor balance line pressure? ? ?
Thread Content
Dear experts: I’m facing a problem that can be described as follows: The mechanical seal of a 711 screw compressor is leaking oil. I replaced four sets of oil seals and carried out a thorough overhaul; during the reinstallation process, all parameters were within the standard range. After the compressor was turned on, all the readings were normal; the only abnormal value was the inlet pressure of the compressor, which increased from 0.024 MPa to 0.045 MPa. At the same time, the pressure in the compressor’s balance line rose from 0.05 MPa to 0.15 MPa. And this is where it gets important. They say that because the clearances at the suction and discharge ends weren’t adjusted properly, the pressure in the balance tube increased, which in turn caused the pressure at the compressor inlet to rise. I was wondering if that’s indeed the case? I also would like to know in detail the overall functions of the balance tube; this screw compressor is equipped with a balance piston. Thank you all.
It is necessary to figure out which comes first and which comes later; the pressure in the balance tube cannot affect the inlet pressure, but rather the opposite is true
Hello, master: What does \"which one first and which one later\" mean? Could you explain it more clearly? Thank you. Also, is it possible that the increased pressure in the balance tube is caused by an improper adjustment of the end-face clearance? ”