一种天然气液化装置
The natural gas liquefaction unit, which uses cascade cooling and multi-stage gas-liquid separation, solves the problem of high energy consumption in existing technologies, realizes cold energy recovery and separation of heavy components, and reduces liquefaction costs and equipment complexity.
CN117168086BActive Publication Date: 2026-07-17四川恒乐达能源工程有限公司
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 四川恒乐达能源工程有限公司
- Filing Date
- 2023-09-05
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing natural gas liquefaction processes are energy-intensive and cost far more than extraction costs, and conventional liquefaction methods have failed to effectively reduce cooling loads.
Method used
The natural gas liquefaction unit adopts a cascade cooling system, which uses two-stage cryogenic cooling sections and two-stage deep cryogenic cooling sections, combined with multi-stage gas-liquid separators and a circulation system, to achieve full recovery of cold energy and intermediate separation of heavy components, thereby reducing the deep cryogenic cooling load.
Benefits of technology
It effectively reduces energy consumption for natural gas liquefaction, simplifies equipment structure, improves cooling efficiency, and reduces liquefaction costs.
✦ Generated by Eureka AI based on patent content.
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Figure CN117168086B_ABST
Abstract
本发明公开一种天然气液化装置，属于深冷技术领域，包括第一、第二冷箱，天然气系统，第一、第二循环系统，其中，天然气系统中设置级间分离以降低第二冷箱的冷却负荷；第一冷箱至少具有两级低温冷却段且每级均配套一个第三气液分离罐，第二循环系统中，每级第三气液分离罐的气相作为冷媒与其他物料换热后送入第二压缩机入口，其中，第一级第三气液分离罐的气相与其入口的流体进行换热，其余级第三气液分离罐的气相与前一级第三气液分离罐的液相换热；每级第三气液分离罐的液相分两部分，一部分作为冷媒进入同一级低温冷却段，另一部分经级间节流阀节流降温后送入下一级第三气液分离罐，从而实现阶梯冷却并充分回收冷量。
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