Energy recovery device for a space division device
By adding a heat exchanger and an organic Rankine cycle system to the air separation unit, the problem of heat loss caused by the compressor cooler was solved, heat recovery and efficient energy conversion were achieved, and the energy utilization efficiency and economy of the system were improved.
CN122106705APending Publication Date: 2026-05-29HUANENG CLEAN ENERGY RES INST +2
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUANENG CLEAN ENERGY RES INST
- Filing Date
- 2024-11-29
- Publication Date
- 2026-05-29
AI Technical Summary
Technical Problem
The problem of heat loss caused by the coolers between the compressors of each stage in the air separation unit cooling the air.
Method used
A first heat exchanger is added between the compressor stages to transfer the heat energy discharged from the cooler to the organic fluid, and waste heat is recovered and utilized through an organic Rankine cycle system, combined with a turbine and generator for energy conversion.
Benefits of technology
It effectively recovers the heat energy that was originally lost, reduces heat loss during the compression process, and improves the energy efficiency and economy of the system.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122106705A_ABST
Abstract
The application provides an energy recovery device of an air separation device, which comprises a condenser, a second inlet through which cooling water flows in; a liquid pump, an inlet of the liquid pump being communicated with a first outlet; a plurality of compressors and a plurality of coolers, the plurality of compressors and the plurality of coolers being communicated alternately, a third inlet of each cooler being communicated with an outlet of the liquid pump, an outlet of each compressor being communicated with a fourth inlet of a corresponding cooler, an inlet of a first compressor inputting air; an expander, a third outlet of each cooler being communicated with an inlet of the expander, an outlet of the expander being communicated with a first inlet; a first heat exchanger, the first heat exchanger being communicated between downstreams of adjacent coolers and upstreams of compressors; a turbine, an inlet of the turbine being communicated with a sixth outlet; and a generator, the generator being connected with an outlet of the turbine. The technical scheme of the application effectively solves the problem of heat energy loss caused by the coolers of the compressors of different levels when cooling air.
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