An improved solid combustion rate test device and test method

A solid combustion rate and testing device technology, applied in the field of chemical detection, can solve the problems of lack of protection circuit components, lack of intelligent measurement components, large test errors, etc., to achieve accurate determination of combustion distance and data collection, simple and convenient operation, temperature sensitive effect

Active Publication Date: 2021-08-17
SHANGHAI RES INST OF CHEM IND +1
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  • Abstract
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Problems solved by technology

The invention adopts the automatic lifting of the ignition rod, and adopts the method of electric heating the ignition rod, so that the experimenter can conveniently control the ignition rod to approach or stay away from the sample to be tested through the control panel, but the operation is relatively slow, and there is a lack of protective circuit components. In addition The device lacks intelligent measurement components, and the test error is large

Method used

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  • An improved solid combustion rate test device and test method
  • An improved solid combustion rate test device and test method
  • An improved solid combustion rate test device and test method

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Embodiment

[0031] An improved solid combustion test device, which includes a heating element igniter for igniting the sample to be tested and a thermocouple array for monitoring the combustion of the sample to be tested, such as Figure 1-4 The heating element igniter is a clip-type exothermic element igniter, including a handle 102 and a heating unit located at one end of the handle 102. The heating unit includes a heating element 103, a high temperature resistant element 104 located on both sides of the heating element 103, and a The fixed electrode 108 and the movable electrode 105 outside the high temperature resistant element 104 are arranged on the handle 102 through the rotation of the first rotating shaft 106 , and the other end of the handle 102 is connected to the power controller 101 . The upper end of the movable electrode 105 is connected to a spring adjustment assembly, including a spring 109 and a clamping knob 110 , the handle 102 is provided with a switch 111 , and the po...

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Abstract

The present invention relates to an improved solid combustion rate testing device and testing method. The device includes a test bench, a heating element igniter for igniting a sample to be tested, and a thermocouple array for monitoring the combustion of the sample to be tested. The heating The element igniter is a clip-type exothermic element igniter, and the thermocouple array is a pin-type fulcrum thermocouple array. Compared with the prior art, the invention is simple and convenient to operate, can accurately monitor the progress of the test, discover emergencies in time, and has high operation safety.

Description

technical field [0001] The invention relates to the technical field of chemical detection, in particular to an improved solid combustion rate testing device and testing method. Background technique [0002] In the classification of hazardous chemicals, there is a flammable solid classification item, which is used to determine the ability of powder, granular paste or mixture to propagate combustion, and to determine the burning time of the substance or mixture after it is ignited. In order to distinguish between substances which are capable of igniting, which burn rapidly or which are particularly dangerous to burn, the substance is only classified as a flammable solid if the rate of combustion exceeds a certain limit value. Since the samples targeted are light-weight test samples such as powders and granules, when the ignition source is a gas flame, the sample will be blown away due to the injection of gas, which will affect the normal test of the sample. Usually, the tempe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/22
Inventor 黄知清范宾蒋伟张小沁储德韧王高俊
Owner SHANGHAI RES INST OF CHEM IND
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