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Propellant burning gas mole number test method and its device

A technology of combustion gas and test method, applied in the direction of volume measurement instrument/method, measurement device, liquid/fluid solid measurement, etc., to achieve the effect of broadening the scope of application and avoiding process errors

Inactive Publication Date: 2008-02-20
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0005] In order to overcome the problems existing in the propellant combustion gas mole number and volume test in the prior art, the present invention proposes a new test method for the combustion gas mole number and volume, which accurately weighs moisture and solves the problem of chlorine-containing elements Test problems of molar number and specific volume of propellant gas

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  • Propellant burning gas mole number test method and its device
  • Propellant burning gas mole number test method and its device
  • Propellant burning gas mole number test method and its device

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Embodiment Construction

[0016] Device embodiment: with reference to Fig. 1, main body device of the present invention is calorimetric bomb, adopts YD-00 type oxygen bomb, is made of stainless steel, and volume is about 250ml ± 10ml~350ml ± 10ml, should be qualified through 30MPa hydrostatic test. A small hole for testing the pressure is opened on the body of the calorimetric bomb, which is connected with the pressure sensor. The pressure sensor adopts a pressure transmitter with a model number of CYH300 and a range of 0 to 5 MPa. Both the calorimetric bomb and the temperature sensor are submerged under the liquid level of the oil bath constant temperature tank, and the ignition device is placed inside the calorimetric bomb. The ignition device adopts 0-20V adjustable regulated power supply; the temperature sensor adopts SWJ-Ic precision digital thermometer with a measuring range of 0-650°C; the oil bath thermostat adopts HH-S digital display constant temperature oil bath, and the medium It is liquid...

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Abstract

The utility model discloses a test method and the device for testing the mole number of combustion gas of propellant. A quantitative sample is arranged in a calorimetric bomb; the air in the calorimetric bomb is discharged through charging and discharging inert gas; finally the pressure of the inert gas remained in the calorimetric bomb is lower than 0.2 MPa; the calorimetric bomb is arranged in an oil bath thermostat; the temperature of the oil bath thermostat is higher than 100 DEG C; at the same time, the pressure in the calorimetric bomb is not bigger than the saturated steam pressure of the current temperature. The sample is energized and ignited to combust in the calorimetric bomb; the gas produced by sample combustion is isothermal in the oil bath constant temperature bath; a pressure sensor on the calorimetric bomb is used to detect the pressure change during the whole process from ignition to constant temperature; a temperature transmitter in the constant temperature bath is used for testing temperature. The gas mole number and gas volume under standard state is converted according to ideal gas state equation. The utility model is accurate in water measurement, and solves the problems of testing the specific volume and the mole number of combustion gas of propellant containing chlorine.

Description

technical field [0001] The invention relates to a method for testing the molar number and volume of combustion gas of combustibles, especially applied to the testing of the molar number of combustion gas of propellant, gunpowder and propellant agent. Background technique [0002] GJB 770A-97 (GJB770B-2005) Method 702.1 "Gas Specific Volume Pressure Sensor Method" introduces a method for measuring the specific volume of combustion gases of gunpowder and pyrotechnic agents. The test device is mainly composed of the following parts: ①The calorimetric bomb is made of stainless steel, with a volume of about 250ml±10ml~350ml±10ml, and it should pass the 30MPa water pressure test; ②The container is made of stainless steel or glass, with a volume of about 4L. There are nozzles for air intake, exhaust and sensor installation on the container; ③pressure sensor; ④vacuum pump; ⑤ignition power supply; ⑥analytical balance. The calorimeter bomb and the vacuum pump are connected to the con...

Claims

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Application Information

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IPC IPC(8): G01N7/06G01F22/02
Inventor 王英红
Owner NORTHWESTERN POLYTECHNICAL UNIV
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