الأخبار

اختتمت فعاليات معرض باك كلين في المؤتمر الوطني السادس والعشرين لبناء المستشفيات بنجاح.

عُقد المؤتمر الوطني السادس والعشرون لبناء المستشفيات (CHCC2025) بشكل كبير في مركز ووهان الدولي للمعارض في الفترة من 24 إلى 26 مايو 2025. خلال هذا المعرض، أظهرت شركة Bacclean، بقوتها التقنية الاحترافية وخدمات منتجاتها عالية الجودة وحلولها المبتكرة، قدرتها التنافسية الأساسية في مجال تنقية المستشفيات، مما جذب العديد من الزملاء في الصناعة لتبادل التقنيات والحلول في مجال التنقية الطبية معًا.

Comparative Evaluation of Gel-seal HEPA Filters: Differences Between Domestic and Imported Products & Procurement Notes

Gel-seal HEPA filters are frequently evaluated between leading domestic manufacturers and imported brands for high-grade projects such as Grade A/B biopharmaceutical cleanrooms and biosafety laboratories. For a long period, imported gel-seal HEPA filters occupied the major share of high-end cleanroom projects in China. In recent years, however, continuous technical iteration by top domestic purification equipment manufacturers has enabled qualified domestic products to replace imported options in numerous new construction, renovation and expansion projects.

Fault Analysis of High‑Temperature Resistant HEPA Filters: Troubleshooting for Hot‑State Leakage, Abnormal Pressure Differential and Seal Aging

Most failures of high‑temperature resistant HEPA filters fall into three major categories: hot‑state leakage, rapid abnormal rise of pressure differential, and premature aging of sealing components. Root causes can be grouped into three aspects: manufacturing defects of filter materials; defects of matching components such as equipment flanges and gaskets; improper operations during installation, temperature ramping and disinfection & maintenance. Many failures perform perfectly under ambient temperature and only emerge after temperature rise, which are easily misjudged as inherent filter quality defects. This paper sorts out frequent field faults, analyzes root causes, and provides step‑by‑step troubleshooting workflows, helping equipment, validation and maintenance personnel quickly identify and resolve issues.

Unidirectional‑Flow Design of Class A Laminar Flow Hood under EU GMP Annex 1: Technical Analysis of Disturbance Resistance, Flow Pattern and Air Velocity

EU GMP Annex 1 sets stringent dynamic requirements for unidirectional airflow in Class A zones for aseptic exposed operations. A Class A laminar flow hood shall not merely satisfy static no‑load performance criteria; it shall maintain unidirectional flow free of vortex and back‑flow under disturbances caused by human operations and material interventions. Many projects pass static tests yet fail dynamic smoke flow pattern tests, which is rooted in neglecting disturbance‑resistance capacity during unidirectional‑flow design. Centering on plenum chamber, flow‑uniformizing system, fan selection, CFD simulation and flow‑pattern qualification, this article analyzes key technologies for Class A laminar flow‑hood unidirectional airflow and provides guidelines for design, selection and validation.

Aluminum Separator HEPA Filter Fault Analysis: Pressure Drop Abnormity, Leakage Detection & Particle Count Exceedance Troubleshooting Guide

Bacclean’s on-site troubleshooting guide for aluminum separator HEPA filters. Common field failures include rapid pressure rise, PAO aerosol leakage alarm, excessive particle concentration in clean areas, and aluminum foil oxidation & corrosion. Many faults are not caused by damage to filter media performance, but by aluminum foil material defects, water accumulation inside the air plenum, or improper installation. Some faults can be detected via PAO scanning, while others require shutdown and visual inspection by opening the housing. This document sorts out frequent failure symptoms, root cause analysis and step-by-step troubleshooting procedures.

Complete Selection Guide for Paper Separator HEPA Filters: Working Condition Differentiation, Material Screening, Parameter Confirmation & Pitfall Avoidance

When selecting paper separator HEPA filters, it is insufficient to only confirm dimensions and efficiency classes. Operating temperature & humidity, disinfection methods and separator materials are the core factors determining long-term operation reliability. For paper separator HEPA filters with identical appearance, product reliability varies greatly due to different impregnation processes of separators. Combined with rich project experience, this guide sorts out the complete selection logic from working condition verification, parameter selection, material screening and industry-specific application to procurement technical requirements, serving designers, engineering and procurement personnel.