Method for processing turbine of ORC expander generator

Abstract

The invention discloses a method for processing a turbine of an ORC expander generator. The method comprises the steps: (1) roughly turning the end face of a blank, and thus obtaining a part; conducting flaw detection for the part; (2) roughly turning the part, and removing large allowance of the part; (3) inspecting the mechanical performance of material of the part; (4) conducting semi-finish turning for the end face of the part and the outer meridian plane, and turning an inner hole in the inner part of the part in one step; (5) drawing milling reference lines of two sides of runners; (6) milling the runners; (7) conducting semi-finish turning for the outer meridian plane and the inner hole, and adjusting the bouncing requirement of the outer meridian plane and the inner hole; (11) drawing position reference lines of a key groove and an end face hole; (12) machining the key groove; (13) drilling the end face hole; (14) conducting a dynamic balance test; (15) conducting flaw detection for the part; (16) and gripping the part to remove burrs. The method has the advantages of small error and high precision.

Description

technical field [0001] The invention relates to the technical field of turbine processing; in particular, it relates to a processing method for a turbine of an ORC expander power generation device. Background technique [0002] In recent years, encouraged by the country's vigorous development of clean energy policies and the support of national industrial policies, the ORC expander power generation device has a broader market. The turbine is a key part of the ORC expander power generation device, and its processing quality directly affects the working efficiency of the ORC expander power generation device. The turbine is connected with the main shaft and rotates together with the main shaft, thereby compressing air and improving work efficiency. [0003] The turbines currently used in the market are generally in the form of a double-channel structure, which solves the problem of turbo lag. The turbo with double-channel structure divides the intake pipe of the turbine into ...

AI Technical Summary

Problems solved by technology

When machining a turbine with a double-channel structure, it is necessary to take into account the design requirements of the flow channels on both sides, so the machining of a turbine with a double-channel structure is difficult and technically difficult

[0004] In terms of turbine material, since this turbine uses 17-4PH (0Cr17Ni4Cu4Nb), the cutting performance of this material is poor

When milling the flow channel, solid carbide tools are generally used for processing, but due to the poor cutting performance of this material, it is not only difficult to process the flow channel with conventional tools, but also causes serious wear and tear on the tool and low efficiency , it is difficult to meet the technical requirements

The working requirements of the turbine with a double-channel structure make the processing requirements of the two channels high, but the current method of machining the turbine flow channel uses multiple benchmarks, resulting in large errors and seriously affecting the use of the turbine with a double-channel structure

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