Thermal conductivity cell detector

• Main Authors: CHENG LIHUA, ZHANG LINGJIA
• Format: Patent
• Language: English
• Published: 15.04.2015
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

A thermal conductivity cell detector belongs to the technical field of analysis and detection instruments. The utility model provides the thermal conductivity cell detector with dual-channel tail-blowing, micro diffusion, a micro thermal conductivity cell body, gold-plated micro spiral type thermo-sensitive elements and a constant-temperature bath mode for glass beads. The thermal conductivity cell detector is high in sensitivity, good in stability and strong in corrosion resistance. The thermal conductivity cell detector is of a stainless steel cylinder structure and is provided with two vertical parallel holes which are provided with screw threads at the upper ends and used for holding the gold-plated micro spiral type thermo-sensitive elements; the two gold-plated micro spiral type thermo-sensitive elements are sealed in the parallel holes by using compression bolts; two small transverse holes communicated with each other are respectively formed at the lateral sides of each parallel hole close to the upper and lower ends; a tail-blowing gas hole communicated with a chromatographic column holding hole is respectively formed at the centers of two connectors; a tail-blowing stainless steel pipe for ventilating tail-blowing gas is welded on each tail-blowing gas hole; the above components are filled in a stainless steel thermal-insulating box; and thermal-insulating silicon wool boards are arranged at four sides of the thermal-insulating box; and the inside space enclosed by the silicon wool boards are full of micro glass beads.