A system for protecting a rectification column from a fire
By combining a PID control system with a reverse osmosis filtration device, the problem of equipment accidents caused by manual operation in emergency situations in air separation equipment has been solved, realizing automated management and stable operation of the equipment, and improving production efficiency and safety.
CN224302500UActive Publication Date: 2026-05-29HARBIN NORTHERN AIR SEPARATION EQUIPMENT CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HARBIN NORTHERN AIR SEPARATION EQUIPMENT CO LTD
- Filing Date
- 2025-02-14
- Publication Date
- 2026-05-29
AI Technical Summary
Technical Problem
In emergency situations, existing air separation equipment requires manual operation of emergency switching valves, which can lead to increased pressure in the fractionation tower and potentially cause equipment accidents.
Method used
The system employs a PID control system to automatically adjust the emergency valve and control the gas flow in real time according to the set pressure value to prevent overpressure of the equipment. Combined with a reverse osmosis filtration device, it prevents corrosion and ensures stable system operation.
Benefits of technology
It enables automated management of equipment, avoids operational errors, improves production efficiency, reduces the risk of equipment damage, and ensures system stability and equipment safety.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224302500U_ABST
Abstract
The utility model relates to a system of protecting rectifying tower safety belongs to the field of air separation, it includes upper tower, evaporimeter, supercooler, lower tower, main heat exchanger, expander and emergency valve, the bottom of upper tower is equipped with lower tower and communicates with it, and upper tower is equipped with evaporimeter, and upper tower is connected with supercooler, and supercooler and third supercooling export are connected with upper tower, and lower tower is connected with supercooler, and supercooler is connected with main heat exchanger, and main heat exchanger is connected with lower tower, and main heat exchanger is connected with upper tower, and main heat exchanger is connected with expander, and expander is connected with main heat exchanger, and the inlet and outlet of expander are connected with emergency valve in parallel, and emergency valve is connected with PID regulation control system. Solve the current air separation equipment when meeting emergency situation needs manual opening emergency valve, if not in time processing, can cause rectifying tower pressure to rise, also can cause the problem of overall accident of equipment, avoid the operation error of personnel operation, improve production efficiency, guarantee equipment safety, easy to realize digitized management.
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