Clean area room pressure difference adaptive control system

Abstract

The invention discloses a clean area room pressure difference adaptive control system, which comprises an air volume acquisition module for acquiring air volume data in real time, an air volume data preprocessing module for filtering the acquired air volume data, a differential pressure acquisition module for acquiring differential pressure data of a clean area room, a differential pressure data preprocessing module for filtering the differential pressure data, a control algorithm module for calculating and processing the data and acquiring adjustment parameters, a first execution mechanism used for adjusting an opening degree of an air supply valve according to the adjustment parameters to realize clean area room pressure difference control, and a second execution mechanism used for adjusting an opening degree of an air return and discharge valve according to the adjustment parameters to realize clean area room pressure difference control. The clean area room pressure difference adaptive control system has the remarkable effects that the clean area room pressure difference adaptive control system adaptively controls the pressure difference in the clean area room, meets the room pressure difference requirements, and has small input cost.

Description

Technical field [0001] The invention relates to the field of automatic control of air conditioners, in particular to an adaptive control system for room pressure difference in a clean area. Background technique [0002] At present, in the pharmaceutical industry, the requirements for the clean area of ​​the clean workshop are getting higher and higher, and the clean technology has also been developed. It integrates the technology of pharmaceutical production technology, construction, decoration, water supply and drainage, air purification and other aspects. Among them, the purification air conditioning method is one of the very important components. [0003] In the purification and air conditioning method, only by controlling the pressure difference in the purification area and ensuring a reasonable airflow organization can the purification and process requirements be met. Therefore, the pressure difference control is a very important link in the purification air conditioning meth...

AI Technical Summary

Problems solved by technology

However, the factors affecting the pressure difference in the room are more complicated, and any one factor may cause the room pressure difference to be unstable, which cannot meet the requirements of the new version of GMP. The unstable room pressure difference in the clean area will not only bring safety hazards to the production and quality of medicines , will directly affect the quality of medicines

[0004] At the present stage, the pressure difference control of the air conditioner in the clean area is basically through the use of high-cost hardware products at the front end, and the corresponding functions are realized by software methods, but this method The main problem is the high cost

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