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Device for testing burning rate of multi-residue solid propellant

A solid propellant and testing device technology, which is applied in fuel oil testing, chemical analysis by combustion, material inspection products, etc., and can solve problems such as abnormal interruption and breaking of the target line

Inactive Publication Date: 2010-06-16
NORTHWESTERN POLYTECHNICAL UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims at the problem of abnormal interruption of the target line during the combustion process of the multi-residue fuel-rich propellant, especially the problem of breaking the second target line due to the shedding of hot combustion products

Method used

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  • Device for testing burning rate of multi-residue solid propellant
  • Device for testing burning rate of multi-residue solid propellant
  • Device for testing burning rate of multi-residue solid propellant

Examples

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Embodiment Construction

[0017] figure 1 It shows the part of the combustion chamber in a sectional view. When installing three transparent observation windows 6, install them in the step-shaped round holes on the combustion chamber respectively. After the sealing ring 13 and the metal ring 14 are installed on the observation window steps, , Tighten the end cap 8 to ensure its airtightness. When testing the burning rate, first install mesh screen and pickling asbestos in the filter cartridge designed and made by the present invention according to the experimental needs, and install them in the circular boss 9 welded on the combustion chamber after the inspection is completed, and then install Core 7. After the sealing ring 13 and the metal ring 14 are installed, tighten the end cap 8, then connect the pipeline connecting the buffer bottle and the exhaust pipe with the core body 7, and install the propellant cartridge and the combustion chamber base 4 . The present invention changes the way in which...

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Abstract

The invention discloses a device for testing burning rate of multi-residue solid propellant, a combustion chamber and a filter collector of which are connected into a whole. The combustion chamber is internally provided with a burn-out proof round bakelite sheet which is made of insulating wood material, arranged between two target lines and penetrates through 6 tapered binding posts arranged on a foundation with the view to avoiding undesirable disruption in the testing as hot combustion products come off, which affects normal operation. The top of the combustion chamber is provided with a transparent observation window, the middle part of the shell of the combustion chamber is provided with two transparent observation windows which are arranged in a 180-degree staggering manner along the circumferential direction, thus facilitating experimental observation.

Description

technical field [0001] The invention relates to a device for testing the burning rate of a target line method, in particular to a device for testing the burning rate of a fuel-rich multi-residue solid propellant. Background technique [0002] In the document GJB 770A-97 (GJB770B-2005) method 706 "burning rate target line method" discloses the burning rate test method of ordinary solid propellants, the principle is: the coated propellant rod sample is drilled into the Target line, under the specified test pressure and temperature, measure the time required to burn out the target distance of the sample in nitrogen, and calculate the burning rate. Unlike ordinary propellants, fuel-rich propellants are propellants with high metal content, which have low oxidant content and insufficient primary combustion. When the propellant burns, a large number of particles are ejected from the burning surface, generating black smoke and leaving behind after burning. A brown residue was left....

Claims

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Application Information

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IPC IPC(8): G01N31/12G01N33/22
Inventor 王英红石磊陈宏杰唐金兰
Owner NORTHWESTERN POLYTECHNICAL UNIV
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