Compression device, and thermodynamic system comprising such a compression device

摘要

The compression device according to the invention includes first and second compressors mounted in parallel and an oil level equalization line arranged to fluidly connect the oil sumps of the first and second compressors. The oil level equalization line includes at least one oil level regulating portion positioned near one of the first and second compressors and including a dam wall extending transversely to the longitudinal direction of said oil level regulating portion and a flow opening arranged such that, when the oil level in the oil sump of the compressor situated near the oil level regulating portion extends above the upper level of the dam wall, oil flows through the flow opening toward the other compressor.

主权项

1. A compression device comprising:
at least one first and one second compressor mounted in parallel and each comprising a sealed enclosure containing a motor, an oil sump and a drive shaft rotatably coupled to the motor, the drive shaft including a lubrication duct configured to be supplied with oil from oil contained in the oil sump, and an oil level equalization line arranged to fluidly connect the oil sumps of the first and second compressors, wherein the oil level equalization line comprises at least one oil level regulating portion positioned near one of the first and second compressors, the oil level regulating portion including a dam wall extending transversely to the longitudinal direction of said oil level regulating portion and a flow opening arranged such that, when the oil level in the oil sump of the compressor situated near the oil level regulating portion extends above the upper level of the dam wall, oil flows through the flow opening toward the other compressor, and the oil level equalization line is arranged and sized such that an upper transfer portion of the equalization line is configured to transfer refrigerant between the first and second compressors, and a lower transfer portion of the equalization line is configured to transfer oil between the first and second compressors, wherein the oil level regulating portion protrudes inside the sealed enclosure of one of the first and second compressors, and wherein the flow opening is inclined relative to the longitudinal direction of the oil level regulating portion.