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E-mail
jingchengyaoxie@126.com
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Phone
13762698596
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Address
About 160 meters east of the intersection of Jinfeng Road and Yuanli Avenue in Dingcheng District, Changde City, Hunan Province
Hunan Jingcheng Pharmaceutical Machinery Co., Ltd
Process principle of injection water distribution system
Date: 2025-04-22Read: 6
The process principle of the injection water distribution system can be divided into the following core steps:
1、 Preparation process
1. Multi effect distillation process
Using purified water as raw material, multi-stage evaporation and condensation are achieved through a multi effect distilled water machine to remove non condensable gases and impurities. The first effect evaporator adopts a double end plate tube design to ensure no cross contamination.
2. Deep purification technology
By using technologies such as reverse osmosis (RO) and electrodeionization (EDI), ions, organic matter, and microorganisms are further removed to achieve ultra pure water quality with a resistivity of ≥ 15M Ω· cm.
2、 Storage and circulation system
1. High temperature cycle design
The storage tank and pipeline system are subjected to high temperature cycling above 80 ℃ to suppress microbial growth. Some systems adopt room temperature circulation and need to be combined with bypass cold circulation or sub circuit design to maintain temperature uniformity.
2. Sterilization process
Overheated water sterilization: High temperature superheated water above 121 ℃ penetrates the pipeline, utilizing the characteristics of low latent heat of condensation and fast cooling to shorten the sterilization cycle.
Pure steam sterilization: By using high-pressure pure steam to denature microbial proteins, it has strong penetration but requires a dedicated steam generator.
3、 Allocation and Quality Control
1. Dynamic allocation mechanism
Adopting a continuous circulation conveying mode, the water quality is guaranteed through precision filters and ultraviolet disinfection devices to avoid the formation of stagnant water areas.
2. Online monitoring system
Real time detection of conductivity TOC、 Key parameters such as temperature are set, and endotoxin control measures are implemented to ensure that water quality meets pharmacopoeia standards.
4、 Key points of system design
1. Material compatibility: The pipeline is made of inert materials such as 316L stainless steel, and the inner surface is electrolytic polished to Ra ≤ 0.5 μ m to reduce microbial adhesion.
2. Anti pollution structure: The storage tank is equipped with hydrophobic respirators, and the circulation pump adopts a dual mechanical seal design to prevent external pollution.
This process achieves stable water quality throughout the entire process from preparation to terminal through multiple safeguards including thermodynamic control, physical purification, and chemical disinfection.
