A low-temperature pressure ethylene storage tank overpressure gas-phase ethylene recovery device

By installing a liquefaction plate and a release mechanism in the low-temperature pressure ethylene storage tank, the problem of mismatch between the flow rate of the regulating valve and the processing capacity of the evaporator was solved, realizing the efficient liquefaction and recovery of overpressure gas phase ethylene and avoiding the waste of ethylene.

CN117919761BActive Publication Date: 2026-06-12CHINA CONSTR SECOND ENG BUREAU LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA CONSTR SECOND ENG BUREAU LTD
Filing Date
2024-01-24
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

In the process of recovering overpressure gas phase ethylene from existing low-temperature pressure ethylene storage tanks, the regulating valve's gas flow rate is mismatched with the evaporator's processing capacity, resulting in poor ethylene treatment or waste.

Method used

The device includes a storage tank and a recovery tank, and is equipped with first and second release mechanisms. It uses a liquefaction plate and connecting pipes to liquefy and collect gaseous ethylene. The flow rate is controlled by the sliding and traction components of the liquefaction plate, and combined with drainage and venting mechanisms, it achieves efficient recovery.

Benefits of technology

This ensures efficient recovery of overpressured gaseous ethylene, avoids leakage and waste, and improves recovery efficiency and precise control.

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Abstract

The application discloses a kind of low-temperature pressure ethylene storage tank overpressure gas phase ethylene recovery device, including storage tank and recovery tank, first release mechanism for the pressure release of storage tank is provided in the recovery tank, and second release mechanism for the pressure release in recovery tank, the liquefaction plate in the recovery tank can be extracted to recovery tank by the overpressure gas phase ethylene generated in the storage tank, and according to the amount of extraction, the working temperature of liquefaction plate can be controlled, and the overpressure gas phase ethylene extracted into recovery tank will not cause leakage before unliquefaction treatment, so as to ensure the recovery efficiency of overpressure gas phase ethylene, to solve the problem of cooperation between the gas flow of existing regulating valve and the processing capacity of evaporator.
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