NewsInformation Center
Design and construction of cone calorimeter
2017/09/22
Share:
Cone calorimeter mainly Consists of the combustion chamber, load platform, oxygen analyzer, smoke measurement system, ventilation and auxiliary equipment and other six parts. Although the market sales models of cone calorimeter are different , but the general structure is same; its structure and design principles follow a certain rule, so the cone calorimeter regardless of which model or brand are similarities, now Analysis the Design and construction of cone calorimeter:
1, combustion chamber. Cut the cone heater, igniter, control circuit, windshield, etc. constitute a combustion chamber. The intensity of the incident heat flow can be appropriately selected according to the different test requirements. The sample is placed on the combustion platform and ignited by the igniter. The combustion products are discharged by the ventilation system.
In the case of
2, smoke measurement system. The helium-neon laser emitters, complex pseudo-double beam measuring devices and thermocouples are provided in the ventilation duct near the combustion chamber to determine the smoke extinction area (SEA) of the smoke in the smoke pipe.
In the case of
3, ventilation system. Ventilation system refers to the sample combustion, the combustion products from the combustion chamber to the atmosphere of the device. Ventilation system ventilation performance should be adjusted according to the test requirements, the gas flow rate should be limited to a certain range, otherwise it will affect the test results.
4, oxygen analyzer. The oxygen analyzer is the core of the CONE, which is a high-precision gas analyzer (accurate to 10-4). The oxygen analyzer accurately verifies the change in the percentage of oxygen in the ventilation duct with time The exotherm of the material is determined by the instantaneous oxygen concentration and oxygen consumption principle.
In the case of
5, load platform. The load cell is a device that measures the change in sample quality, which accurately records the quality of the sample during the combustion process. When burning, the sample is placed on the support of the load platform.
In the case of
6, other improved equipment. According to different needs, can also add other analysis devices, such as the combustion product composition analysis, can increase the infrared spectrum analysis device; if the measurement of temperature distribution in the sample, to be the corresponding thermocouple or infrared camera device transformation.
In the case of
7, auxiliary equipment. Auxiliary equipment contains a computer processor, the incident heat flow intensity measuring instrument, remove the CO2 and H2O (gas) of the corresponding devices.
Previous: Hydrostatic Head Test Machine Testing Steps
N e x t : The Latest News in Textile And Apparel Industry
