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Method for measuring combustion heat value of boron powder

A measurement method and calorific value technology, which is applied in the field of determination of combustion calorific value, can solve problems such as incomplete combustion of boron powder, and achieve good application prospects, convenient operation, and stable performance

Active Publication Date: 2011-04-06
JIANGSU DINGXIN ELECTRIC +1
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  • Abstract
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Problems solved by technology

[0006] In order to solve the problem that boron powder cannot be completely burned in the prior art, the present invention provides a method for measuring the calorific value of boron powder combustion, which can effectively ensure the complete combustion of the boron powder sample in the oxygen bomb, so that the actual measurement of boron powder The calorific value of combustion coincides with its theoretical calorific value

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  • Method for measuring combustion heat value of boron powder
  • Method for measuring combustion heat value of boron powder
  • Method for measuring combustion heat value of boron powder

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Embodiment Construction

[0033] figure 2 The improved device of this test method is shown. The device is made of the YDI-00 oxygen bomb produced by Changsha Kaiyuan Instrument Co., Ltd. after the crucible suspension structure is removed, and then screws are added. image 3 It shows the structure of intermolecular mixing of SQ-2 combustion accelerant dissolved in acetone and boron powder particles in the present invention, Figure 4 The photo taken with a high-power electron microscope shows the structure of the SQ-2 combustion accelerant that has not been dissolved in acetone in a granular form and mechanically mixed with boron powder particles. Figure 5 The device connection structure of this test method is shown. This device is based on the GR3500 oxygen bomb calorimeter manufactured by the Chinese state-owned Changsha Instrument Factory. The imaging processing system replaces the Beckman thermometer temperature system in the GR3500 that was originally recorded by manual reading.

[0034] The pr...

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Abstract

The invention discloses a method for measuring the combustion heat value of boron powder. The method comprises the following steps of: mixing SQ-2 powder and the boron powder and weighing; spraying standard acetone onto mixed powder for bonding into a pharmacophore; drying the pharmacophore in the air, weighing once again and cutting the dried pharmacophore into a plurality of sample medicament strips; winding the medicament strips on an ignition thread and connecting the ignition thread to an ignition electrode in an oxygen bullet; observing the sealing status of the oxygen bullet and recording initial temperature data; igniting the medicament strips to observe the variation curve of the temperature data; and integrating, cooling, correcting and processing the temperature data of inner and outer barrels by a cooling and correcting method so as to finally obtain the combustion heat value of a boron powder sample. The method ensures full combustion of the boron powder.

Description

technical field [0001] The invention relates to a method for measuring the calorific value of combustion, especially suitable for boron powder samples that cannot be completely combusted in existing calorific value measuring devices and have a high ignition point, and can also be applied to other samples similar to boron powder such as Determination of the calorific value of combustion of coal powder, boron-containing high-energy solid propellant or other fuel substances that are difficult to completely burn. Background technique [0002] In the prior art, an oxygen bomb calorimeter is often used in instruments for measuring the calorific value of substances, wherein the sample combustion chamber is also commonly referred to as an oxygen bomb system, such as figure 1 Shown: The oxygen bomb system includes bomb body 1, warhead 2, deflation valve 3, electrode 4, air intake valve 5, inflation tube 6, crucible 7, crucible support 8, nickel-cadmium alloy ignition wire 9, combusti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/22
Inventor 王英红张勤林李葆萱
Owner JIANGSU DINGXIN ELECTRIC
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