Device for testing radial heat conductivity coefficient of tubular material

• Main Authors: ZHAO WEILI, GUO ZIXUE, LIU WEI, ZHOU BO, JIANG HONGMIN, HU LINGLING, WANG LIMING, RAN BO, GONG JIANGCHENG
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2014
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model discloses a device for testing the radial heat conductivity coefficient of a tubular material. The device comprises a testing device in a constant-temperature water tank, wherein the constant-temperature water tank is composed of an inner barrel, an outer barrel and a sealing plate. The testing device comprises a main heater, left and right auxiliary heaters, left and right heat protection sections, a sample piece to be tested and a heat dissipation cover, wherein at least seven pairs of thin film platinum resistors are uniformly distributed on and attached to the inner and outer walls of the sample piece to be tested along the axial direction; one auxiliary thin film platinum resistor is attached to the inner wall of each of the left heat protection section and the right heat protection section; a thin film platinum resistor lead wire is connected with a temperature display instrument; a voltage stabilizer and a voltage regulator are arranged at the output end of alternating current; a volt