Compressor with oil equalizing pipe, parallel compressor set, and oil equalizing method

Abstract

The present disclosure provides a compressor with an oil equalizing pipe, a parallel compressor set, and an oil equalizing method. The compressor includes at least one oil equalizing pipe, an opening at one end of the oil equalizing pipe is formed in a target oil level of an oil sump, and the opening at the other end of the oil equalizing pipe is formed in a suction port; and when the oil level of the oil sump of the compressor is higher than the target oil level, the extra oil enters the suction port through the oil equalizing pipe. Compared with the prior art, the present disclosure has the advantages that, when the compressor is running, the gas in the suction port flows, so that the pressure at the suction port is less than the pressure on the surface of the oil sump; when the oil level of the oil sump of the compressor is higher than the target oil level, the extra oil enters the suction port through the oil equalizing pipe under the action of the above pressure difference, a part of the oil enters vortex and is discharged from the compressor via the exhaust port, and the oil discharged from the compressor returns to the other compressor lack of oil through a pipeline, thereby achieving oil balance between different compressors.

1 . A compressor with an oil equalizing pipe, comprising a compressor body, the compressor body being provided with a suction port and an exhaust port, an oil sump being disposed at the bottom of the compressor body, wherein the compressor further comprises at least one oil equalizing pipe, an opening at one end of the oil equalizing pipe is formed in a target oil level of the oil sump, and the opening at the other end of the oil equalizing pipe is formed in the suction port; and when the oil level of the oil sump of the compressor is higher than the target oil level, the extra oil enters the suction port through the oil equalizing pipe. 
     
     
         2 . The compressor with the oil equalizing pipe according to  claim 1 , wherein the oil equalizing pipe is disposed in a compressor body shell. 
     
     
         3 . The compressor with the oil equalizing pipe according to  claim 1 , wherein the middle pipe body part of the oil equalizing pipe is disposed on an outer side of the compressor body shell. 
     
     
         4 . The compressor with the oil equalizing pipe according to  claim 1 , wherein the oil equalizing pipe is provided with a bent part at the end of the suction port, and the axis of the pipe body of the bent part is parallel to the airflow direction at the suction port. 
     
     
         5 . The compressor with the oil equalizing pipe according to  claim 4 , wherein an ultrasonic atomizer is disposed on the periphery of the pipe body of the oil equalizing pipe near the suction port. 
     
     
         6 . The compressor with the oil equalizing pipe according to  claim 2 , wherein the oil equalizing pipe is provided with a bent part at the end of the suction port, and the axis of the pipe body of the bent part is parallel to the airflow direction at the suction port. 
     
     
         7 . The compressor with the oil equalizing pipe according to  claim 6 , wherein an ultrasonic atomizer is disposed on the periphery of the pipe body of the oil equalizing pipe near the suction port. 
     
     
         8 . The compressor with the oil equalizing pipe according to  claim 3 , wherein the oil equalizing pipe is provided with a bent part at the end of the suction port, and the axis of the pipe body of the bent part is parallel to the airflow direction at the suction port. 
     
     
         9 . The compressor with the oil equalizing pipe according to  claim 8 , wherein an ultrasonic atomizer is disposed on the periphery of the pipe body of the oil equalizing pipe near the suction port.