A parallel-flow radial organic working fluid power generation expander and its installation method

Abstract

The invention discloses a concurrent flow centripetal type organic working medium power generation expansion machine and an installation method thereof, and belongs to the technical field of low-temperature waste heat recovery power generation. The concurrent flow centripetal type organic working medium power generation expansion machine comprises an air inlet shell and a main shaft, a first exhaust shell and a second exhaust shell which arranged side by side are installed on the air inlet shell, a turbine is fixed to the main shaft, a first labyrinth seal and a second labyrinth seal are arranged between the one end of the turbine and the first exhaust shell and between the other end of the turbine and the second exhaust shell respectively and used for conducting axial sealing on organic working media, and a seal cover plate is arranged on the first exhaust shell and used for sealing the organic working media passing through the second labyrinth seal. According to the concurrent flow centripetal type organic working medium power generation expansion machine and the installation method thereof, axial assembling is adopted, parts inside the shell are not subjected to vertical subdivision, the phenomenon that the working media are leaked due to split deformation during axial assembling is avoided, a better sealing effect is achieved, and zero leakage of the organic media is achieved.

Description

technical field [0001] The invention belongs to the technical field of low-temperature waste heat recovery power generation, and relates to a co-current radial organic working medium power generation expander and an installation method thereof. Background technique [0002] At present, the low-temperature waste heat generated by a large number of domestic industrial processes cannot be effectively recycled, which not only wastes energy, but also makes thermal pollution a serious environmental problem. Therefore, how to effectively utilize low-temperature waste heat has become a breakthrough in energy conservation and emission reduction. The Organic Rankine Cycle (ORC) solves this problem very well. It uses organic working fluid to recover low-temperature waste heat for power generation. It not only reduces the emission of CO2, NOx and SO2 in the process of conventional energy utilization, but also improves the total utilization rate of energy. The organic working medium us...

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Problems solved by technology

[0003] The existing organic working fluid power generation expanders have complex internal structures and low efficiency, and cannot completely isolate the leakage of organic working fluids, and most of the existing organic working fluid power generating expanders are radially assembled, but radial assembly It is easy to cause leakage of working fluid due to the deformation of the middle split surface, and when the radial assembly is assembled on the upper and lower shells, the sealing ring cannot be used, but the sealant can be applied to the middle split surface to seal the organic working fluid, which not only increases the cost of the unit It is difficult to disassemble and assemble, and it cannot guarantee a good sealing effect

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