Noise elimination structure of compressor and noise elimination method thereof

Abstract

The invention discloses a noise elimination structure of a compressor and a noise elimination method thereof. The noise elimination structure comprises a shell. The shell is internally provided with afirst partition board and a second partition board which divide the shell into a first noise elimination chamber, a second noise elimination chamber and a third noise elimination chamber. One end ofthe shell is provided with an inlet pipe communicating with the first noise elimination chamber and a coil pipe of the compressor, and the other end of the shell is provided with an outlet pipe communicating with the third noise elimination chamber and the coil pipe of the compressor. A communicating vessel hollow pipe is arranged on the first partition board and the second partition board. The inlet end of the communicating vessel hollow pipe is located in the first noise elimination chamber. The outlet end of the communicating vessel hollow pipe is located in the third noise elimination chamber. The middle section of the communicating vessel hollow pipe is located in the second noise elimination chamber. The position, close to the first partition board, of the middle section of the communicating vessel hollow pipe is provided with an expansion hole. The position, close to the second partition board, of the middle section of the communicating vessel hollow pipe is provided with a reverse collection hole. The expansion hole and the reverse collection hole are located on the two sides of the communicating vessel hollow pipe correspondingly. The noise elimination structure of the compressor can achieve the three-stage noise elimination function and is good in noise elimination effect.

Description

technical field [0001] The invention belongs to the technical field of compressor noise reduction, and in particular relates to a compressor noise reduction structure and a noise reduction method. Background technique [0002] The utility model patent with the patent number 201120157944.1 disclosed the technology of "exhaust anechoic chamber device for crankcase for refrigeration compressor" on January 11, 2012. In this patented technology, the multi-stage anechoic chamber of the compressor cylinder block needs to be machined, the geometric shape is limited, and parts such as gasket cover plate screws are required to form the anechoic chamber sealing cavity and increase the assembly process requirements. An exhaust anechoic chamber structure is proposed, including cylinder bores, inlets, cylindrical anechoic chambers, exhaust pipes and abnormal anechoic chambers. The cylindrical anechoic chambers, gaskets and cover plates are fastened by screws to form a second An exhaust a...

AI Technical Summary

Problems solved by technology

In this patented technology, the multi-stage anechoic chamber of the compressor cylinder block needs to be machined, the geometric shape is limited, and parts such as gasket cover plate screws are required to form the anechoic chamber sealing cavity and increase the assembly process requirements. An exhaust anechoic chamber structure is proposed, including cylinder bores, inlets, cylindrical anechoic chambers, exhaust pipes and abnormal anechoic chambers. The cylindrical anechoic chambers, gaskets and cover plates are fastened by screws to form a second One exhaust anechoic chamber cavity, the abnormal anechoic chamber adopts casting to form the first exhaust anechoic chamber cavity, the abnormal anechoic chamber and the cylindrical anechoic chamber are connected through the throttle hole

In this patent, due to the abnormal structure of the first-stage anechoic chamber of the exhaust anechoic chamber, it is necessary to make a separate core on the mold, and at the same time make a relatively sealed cavity after high-temperature casting, and there are inclusions and sand in the cavity. It is not easy to find and handle. The special-shaped anechoic chamber and the cylindrical anechoic chamber need to be connected by drilling. This hole is not easy to process because of the small diameter of the anechoic chamber. Due to the structure and space of the cylindrical anechoic chamber, The cross-sectional area of ​​the cylindrical anechoic chamber cannot be enlarged, and the expansion ratio formed by the inner cavity and the coil is limited, so the anechoic capacity is limited; at the same time, in the process of assembling to the compressor, impurities such as inclusions and sand particles are likely to block the exhaust. The gas port or enters the compressor motion sub-system, causing the compressor to be stuck and other serious failures and other problems

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