UHP Bulk Liquid Chemical Delivery System (BCDS) Implementation for High-Efficiency Photovoltaic and Solar Cell Production Lines

UHP Bulk Liquid Chemical Delivery System (BCDS) Implementation for High-Efficiency Photovoltaic and Solar Cell Production Lines In the rapidly advancing solar industry, the transition to N-type and TopCon cell architectures has made Ultra-High Purity (UHP) fluid handling a baseline requirement. A Bulk Liquid Chemical Delivery System (BCDS) implementation serves as the high-capacity backbone for these facilities, ensuring that the massive volumes of etchants and cleaning agents required for wafer texturing remain entirely contamination-free. To maintain parts-per-trillion (ppt) purity across a sprawling production floor, Jewellok utilizes 316L electropolished stainless steel with a mirror-like 5Ra internal finish. This surface engineering is critical in photovoltaic manufacturing to prevent metallic ion leaching, which can significantly degrade a solar cell’s energy conversion efficiency. The system is governed by PLC-controlled automation, allowing for the continuous, high-speed transport of chemicals from bulk tankers directly to point-of-use modules. Safety is integrated through Nitrogen (N2) blanketing for volatile solvents and secondary containment with automated leak detection sensors. By bridging the gap between external supply and the production line, a UHP BCDS implementation allows solar manufacturers to achieve 99.9% operational uptime. This ensures that high-volume output never comes at the expense of cell efficiency or facility safety. Technical Data Model JW-200L-CDM,JW-1000L-CDM Special gas cabinet size W2200*D1500*H2000(double drums)/W2990*D2100*H2000(double drums) Control cabinet power supply 220VAC, 50HZ, 0.5～3KW, leakage protection Purge PN2,SS316 1/2″SWG Ultra-pure water UPW, JIS 16A bonding Compressed air CDA,SS316 1/2″SWG Waste outlet Drain,PP DN20 Fusion Socket/Drain,PP DN25 Fusion Socket Standard equipment PP shell + transparent PVC observation window + PFA internal pipe valve, nitrogen purging, sampling, fully automatic acid supply, automatic switching of left and right barrels. The pump body has two uses and one backup. It can automatically switch the liquid supply operation according to the liquid level in the barrel. The touch screen can display the working status of each valve and the liquid supply status of the pipeline. Automatically cut off the fluid supply, early warning and alarm of the operating status of each part of the system, self-check and confirmation of multiple safety, simple system, and supports multiple languages, supports multiple signal inputs, code scanner, high-efficiency filter, door sensor Optional *Emergency manual operation panel *High efficiency filter *Door sensor Speciality Chemicals Handled HF- Hydrofluoric acid HCL- Hydrochloric acid H2O2- Hydrogen Peroxide KOH- Potassium Hydroxide HNO3- Nitric acid NH4OH- Ammonium Hydroxide H2SO4- Sulfuric acid CDM and CDS Application: Semiconductor Photovoltaic Solar energy Liquid crystal panel Optical fiber Other production fields Function Of CDM and CDS: Chemical filtration Chemical sampling Chemical circulation Chemical delivering Fluid Chemical Delivery Module And Chemical Delivery System Fluid Chemical Delivery Module And Chemical Delivery System Fluid Chemical Delivery Module And Chemical Delivery System Fluid Chemical Delivery Module And Chemical Delivery System chemical delivery module (CDM) and chemical delivery system (CDS) chemical delivery module (CDM) and chemical delivery system (CDS) Shenzhen Jewellok Technology Co., Ltd. provides advanced ultra-high purity (UHP) chemical handling solutions, including chemical delivery module (CDM) and chemical delivery system (CDS). Jewellok’s CDS and CDM automate high-purity chemical handling. Use the CDS for bulk transport from storage to the facility via electropolished 316L piping. Use the CDM for precise blending and dilution at the point-of-use. Both systems ensure safety and purity through automated leak detection and non-contact level monitoring. These instructions outline the standard operation for Jewellok’s Chemical Delivery Systems (CDS) and Delivery Modules (CDM) to ensure safety and ultra-high purity (UHP) standards. 1. Bulk Supply and Delivery (CDS) The CDS manages the automated transport of bulk chemicals from storage to the facility. Operators must monitor the non-contact level sensors via the HMI panel to track real-time consumption. The system utilizes automated changeover protocols; when a supply barrel is empty, the system will switch sources to maintain a bubble-free flow. Ensure all 316L electropolished piping connections are inspected during scheduled maintenance to prevent particle contamination. 2. Mixing and Dispensing (CDM & VMB) The CDM handles precise blending and dilution at the point-of-use. Users must select the pre-programmed recipe control to automate the mixing of chemicals with DI water. Use the Valve Manifold Box (VMB) to isolate specific branch lines when servicing individual tools without halting the entire facility supply. 3. Safety and Waste Protocols All units feature automatic leak detection and secondary containment. If an alarm sounds, the system will automatically trigger a safety shut-off. For organic solvents, ensure nitrogen blanketing is active to prevent oxidation and fire hazards.