Cone calorimeter

Abstract

The invention discloses a cone calorimeter. The cone calorimeter comprises a main control computer, an auxiliary control computer, a combustion and irradiation device, a smoke discharging assembly and a gas analysis device, wherein the auxiliary control computer is provided with a heat flux meter assembly and a water-cooled circulating system of the heat flux meter assembly; the combustion and irradiation device comprises an ignition assembly, a heat radiation assembly and a sampling assembly; the smoke discharging assembly is provided with a measuring assembly and is used for connecting the combustion and irradiation device with an external waste gas treatment device; the smoke discharging assembly is connected with the gas analysis device through a collecting device. In an experimental process, the main control machine is used for controlling all components and receiving a feedback signal, the auxiliary control machine is used for controlling the combustion and irradiation device to test the performance of a flame-retardant material, a generated gas can be sent from the smoke discharging assembly to the gas analysis device so as to be subjected to analysis treatment, a testing result can be obtained by the measuring assembly on the smoke discharging assembly and the gas analysis device, the needs of a test all-in-one machine used in a laboratory scale can be met, and the cone calorimeter can be widely applied to various fields.

Description

technical field [0001] The invention relates to a measuring instrument for flame retardancy of materials, in particular to a cone calorimeter for measuring parameters such as material heat release rate, effective combustion heat and smoke density based on the principle of oxygen consumption. Background technique [0002] The development of flame retardant science and technology has put forward higher and higher requirements for the evaluation and testing methods of flame retardant materials' combustion behavior; traditional testing methods such as: oxygen index method, vertical combustion method, and horizontal combustion method, although they have operational It is simple, fast, and repeatable, and is still widely used in many combustion test laboratories. However, these methods generally have shortcomings such as single test parameters and unquantifiable test results, which are difficult to correlate with the combustion behavior of materials in real fire conditions. Theref...

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Problems solved by technology

[0002] The development of flame retardant science and technology has put forward higher and higher requirements for the evaluation and testing methods of flame retardant materials' combustion behavior; traditional testing methods such as: oxygen index method, vertical combustion method, and horizontal combustion method, although they have operational It is simple, fast, and repeatable, and is still widely used in many combustion test laboratories. However, these methods generally have shortcomings such as single test parameters and unquantifiable test results, which are difficult to correlate with the combustion behavior of materials in real fire conditions. Therefore, with the rapid development of flame retardant science and technology, various new testing methods have emerged, the most representative of which is is a cone calorimeter

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