China's geographical area is vast, and the water quality and water demand of customers around the world are quite different. The three subsystems of pretreatment, reverse osmosis and ultrapure purification of ultrapure water systems have different selection and configuration schemes for users with different needs. To this end, UPU provides this medical pure water equipment selection guide to help customers choose the medical pure water solution that suits them.
First, confirm the water equipment → the type of primary selection
1. Inspection room ≤ 1200 test automatic biochemical analyzer user choose UPS series models;
2. Inspection room ≥ 2000 test automatic biochemical analyzer water selection ULPS series models;
3. Multiple units share one water machine, choose ULPS or ULPS custom ultra-pure water system
4. Other water requirements The ULPTY Universal Water System can be selected based on the water equipment.
Second, confirm the total water consumption → main mechanism water volume → water tank volume
The sales staff of U-Pu will first confirm the daily usage of the user in the next two years through the customer's research and investigation. The 8-hour water production of the selected model should meet this demand (Note: users in the northern market should consider the factors that reduce the water production of the RO membrane in winter), the water tank The volume should meet the water usage within 2 hours of the user's peak period.
Third, confirm the water quality needs → preliminary judgment host selection
1. Whether the conductivity requirement is ≤0.1uS/cm or the requirement is ≤1.0uS/cm (online monitoring
2. Is there any demand for ultrapure water, resistivity ≥18.0MQ. Cm (online monitoring)
3. Whether it is necessary to remove bacteria/heat sources;
4. Whether it is necessary to remove organic matter (TOC<10ppb), microorganisms;
5. Other special requirements.
Fourth, confirm the source water quality I → confirm the host model I
By monitoring the source water TDS value (total dissolved solids in water) or conductivity, the source water quality can be initially determined.
1. Class A area: TDS<200ppm (conductivity <400uS/cm), good water quality, single-stage RO water production
Conductivity is about 2 ~ 8uS / cm;
2. Class B area: TDS is 200-500ppm (conductivity 400~1000uS/cm), water quality deviation, single
Grade RO water conductivity is about 8 ~ 20pS / em, need to be separately configured with enhanced pretreatment and optional dual-stage RO system;
3. Class C area: TDS>500ppm (conductivity>1000uS/cm), high saline content, single-stage RO production
The water conductivity is reduced to 20uS/cm or more, and a separate softening water system is required.
Optional configuration, special handling.
V. Confirm the source water quality I I→ water quality preprocessor selection
1. Urban tap water area: U-standard standard model;
2. Groundwater or substandard water supply area: Confirm whether the heavy metal content such as iron and manganese exceeds the standard by water quality analysis.
Users in the over-standard area should choose the U-Pudong medium and the iron-manganese filter;
3, the source water hardness is relatively large: the production of RO pure water Ca2+, Mg2 * will be correspondingly high, after the selection of water softener
It can effectively reduce the content of Ca2 and Mg2' in the produced water, but the softening treatment is replaced by Na* in the water.
Ca2+, Mg2", Na, CI in pure water may be high;
4, the source water content exceeds the standard area: the content exceeds the standard, you need to choose the ULU special filter or optional activated carbon filter.
Complete the design of the Yupu Medical Pure Water Project
Under the guidance of the company's technical department, Youpu sales staff will provide you with a tailor-made "U-Pu medical pure water system solution design and quotation" to provide a preliminary reference for your correct selection.
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