Deoxygenation and exhaust steam recovery system and method

By combining the design of Venturi nozzles, gas-liquid separators, and swirl atomizing nozzles, the problems of incomplete deoxygenation and incomplete waste steam recovery in existing deoxygenation technologies are solved, thereby reducing deoxygenation steam consumption and waste heat recovery from waste steam, and lowering equipment investment and operating costs.

CN122129690APending Publication Date: 2026-06-02XIAN GERUI ENERGY & POWER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN GERUI ENERGY & POWER TECH CO LTD
Filing Date
2026-04-21
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing deoxygenation technologies are not effective, consume a lot of steam, have incomplete waste steam recovery, and result in serious waste of waste heat and deoxygenated water, leading to high recovery costs.

Method used

The system design combines a Venturi nozzle with a swirl film deoxygenation section. The Venturi nozzle recovers the waste heat of the exhaust steam, the gas-liquid separator separates the gas and liquid phases, the swirl atomizing nozzle performs countercurrent contact heat and mass transfer, and finally the heated deoxygenated water storage section performs deoxygenation again, realizing multiple recovery and deoxygenation of exhaust steam.

Benefits of technology

It reduces deoxygenation steam consumption, improves deoxygenation efficiency, recovers waste heat from exhaust steam, reduces equipment investment and operating costs, and achieves an efficient combination of deoxygenation and waste steam recovery.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a deoxygenation and waste steam recovery system, including a Venturi nozzle. The inlet of the Venturi nozzle is connected to a low-temperature demineralized water pipeline and the waste steam outlet of a vortex film deoxygenation section, respectively. The outlet of the Venturi nozzle is connected to the inlet of a gas-liquid separator. The vortex film deoxygenation section is connected downwards to the internal space of a heated deoxygenation water storage section, which is equipped with a low-level steam nozzle. The vortex film deoxygenation section is connected to a heated demineralized water pipeline, and both the vortex film deoxygenation section and the low-level steam nozzle are connected to a low-pressure steam pipeline. The bottom of the heated deoxygenation water storage section is connected to a minimum return pipeline for deoxygenated water and a delivery pipeline for deoxygenated water via a deoxygenated water pump. This invention also discloses a deoxygenation and waste steam recovery method. This invention belongs to the field of mechanical equipment technology and solves the problems of high steam consumption and poor deoxygenation effect in the existing deoxygenation process.
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