制药用水的贮存（Storage of pharmaceutical water）.docVIP

制药用水的贮存（Storage of pharmaceutical water） Storage of pharmaceutical water Storage tanks and their selection In the pharmaceutical water system, the storage of purified water and the storage of water for injection have similar requirements and microbiological control standards. The tank design is very similar, in the pharmaceutical water storage tank design standards, to determine the effect of tank type and capacity as well as microbial control method and the main factor is the distribution of user requirements of the water quality and water load peaks and valleys, the number of tanks, requires the use of cycle and time. The storage tank is designed to ensure a balance between pretreatment and final treatment, water supply, and whether the system needs recirculation. Think carefully about these causes Table 2.1 comparison of storage tanks in process water system Tank system Advantages and disadvantages Providing air separation to minimize subsequent contamination of water sources for thermal injection; By heating the injection water into the tank evenly into the tank, minimizing the capacity of the water cooler for injection; It can satisfy the ideal peak dosage of injection water, so as to meet the needs of production plan; The system pressure is released by positive pressure, daily discharge or hot water disinfection; Compared with the non tank system, the operating conditions are easier to maintain, and the potential problems are also easier to control; To clear the water pressure control valve cavitation of storage, filter down through the dispersion between the valve and the pressure of the spray ball funding; Compared with the non tank system, the amount of disinfection steam involved is more; If the system is drained daily, the potential loss of the injected water will be greater than that of the no tank loop system Tank less system Less capital input (no tank and no filter); Because of the completely welded pipe system, the bactericidal effect is better; If t