保持石脑油分离塔稳定的系统及运行方法
By introducing a cross-line structure into the naphtha separation tower system, the problem of unstable flow under light and heavy pre-hydrogenation conditions was solved, achieving stable operation of the pumps and reducing energy consumption.
CN117535070BActive Publication Date: 2026-07-17DALIAN FUJIA DAHUA GASOLINEEUM CHEM
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DALIAN FUJIA DAHUA GASOLINEEUM CHEM
- Filing Date
- 2023-12-28
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
The naphtha separator experiences unstable flow rates under pre-hydrogenation light and heavy conditions, leading to pump blockage in the reflux pump and external pump, which affects the service life of the pumps and results in high energy consumption.
Method used
Introducing a cross-line structure into the naphtha separation tower system connects the return pipeline and the external delivery pipeline, enabling flexible switching between the two pumps and ensuring that light components can be returned and delivered normally under different operating conditions, thus avoiding pump stalling.
Benefits of technology
Stable operation of the naphtha separator under different working conditions has been achieved, extending the service life of the pumps and saving energy.
✦ Generated by Eureka AI based on patent content.
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Figure CN117535070B_ABST
Abstract
本发明涉及石脑油分离技术领域，具体为一种保持石脑油分离塔稳定的系统及运行方法。塔顶回流罐与精制油塔的塔顶连接；回流管线与塔顶回流罐连接，回流管线上依次设置有回流泵、第一单向阀、第一截至阀及第一流量调节阀组；外送管线与塔顶回流罐连接，外送管线上依次设置有外送泵、第二单向阀、第二截至阀及第二流量调节阀组；跨线的一端连接至回流管线，跨线另一端连接至外送管线，跨线与回流管线的碰头位置在第一截至阀与第一流量调节阀组之间，跨线与外送管线的碰头位置在第二截至阀与第二流量调节阀组之间。本发明能够解决预加氢重工况运行时，精制油塔回流与外送憋泵问题，既延长了机泵寿命，又节约了能耗。
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