Technical Cleanliness Inspection Application in the Liquid Cooling Industry

Technical Cleanliness Inspection System plays a crucial role in the liquid cooling industry, impacting the cooling efficiency, operational stability, and service life of liquid cooling systems. The details are as follows:

1. Sources and Hazards of Contaminants

Liquid cooling system contaminants can originate from a wide range of sources, including manufacturing and installation residues, coolant impurities, corrosion products, biological growth, and external intrusion. These contaminants can lead to flow blockage, reduced flow, decreased heat exchange efficiency, increased corrosion, pump wear and failure, and loss of coolant chemical stability, severely impacting system performance and lifespan.

2. Cleanliness Testing Standard

To ensure stable operation of liquid cooling systems, cleanliness testing of components is required. Component cleanliness testing is typically performed in accordance with international standards VDA 19.1 and ISO 16232.

3. Applications of JYBO CleanTech Cleanliness Testing Equipment in Liquid Cooling Industry

3.1 JYBO CleanTech Technical Cleanliness Cabinet can use different cleanliness methods to wash components, including pressure rinsing, perfusion rinsing, ultrasonic, air blow and so on, and can customize technical cleanliness flushing cabinet according to customer’s requirements. For example, during the manufacturing process of liquid cooling plates, high-pressure rinsing can be used to flush the flow channel and then dried to ensure a clean installation environment and operating specifications.

3.2 In general, components in the liquid cooling industry are cleaned more by perfusion rinsing. The customized perfusion rinsing system of the JYBO CleanTech Technical Cleanliness Cabinet can clean components such as liquid cooling pipes and connectors. The cleaning solution completely fills the interior of the component, utilizing turbulent flow rather than laminar flow to more effectively separate impurities from the component.

The instrument features a pre-installed pipe access port for perfusion and flushing of components. The perfusion return port is located within the instrument cavity, rather than directly connected to the filter sample preparation port. This eliminates the chamber vacuum caused by direct connection of the liquid inlet and outlet ports to the filter sample preparation port, as well as the flow resistance caused by the filter pore size, thus preventing incomplete particle collection.

To calculate the turbulent flow through the tube, the Reynolds Number Re>4000, which is defined via the equation Re=w*d/v,(w: velocity of the flow, d: tube diameter, v: kinematic viscosity) is used. The turbulent volume flow (dV/dt) for other liquids can be calculated on covering this to dV/dt=Re*d*π*v/4.

3.3 JYBO CleanTech Automatic Particle Analysis System can also analyze the contaminants in the extracted components to ensure and monitor cleanliness.

JYBO CleanTech Automatic Particle Analysis System can not only automatically identify particle properties, quantity and size; but also generate cleanliness test reports with one click. Related equipment complies with international standards such as VDA19 and ISO16232.