Pipeline structure for Freon refrigerating unit

The utility model discloses a pipeline structure for a Freon refrigerating unit. The air conditioner structurally comprises a condenser, an oil condenser, a first-stage oil-gas separator, a second-stage oil-gas separator, a compressor, a main liquid supply economizer and a liquid storage device which are connected in sequence, wherein an oil supply filter pipeline is connected between the oil condenser and the first-stage oil-gas separator, the oil supply filter pipeline at least comprises two oil supply filter branches which are connected in parallel, and each oil supply filter branch comprises an oil supply filter and an oil supply ball valve which are connected in series. After the technical scheme is adopted, the pipeline structure for the Freon refrigerating unit has the advantages that the blocked filter element of the oil supply filter can be detached, cleaned and replaced under the condition that the startup is not influenced, and the effect that the filter element is blocked and the production is not