Gas Explosion Pressure Test Apparatus
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The Gas Explosion Pressure Test Apparatus is designed to measure the explosion characteristics of gases in a sealed testing chamber. By filling the evacuated chamber with the test gas and igniting it under controlled conditions, the system automatically records internal pressure and temperature changes. This allows determination of maximum explosion pressure (Pmax), explosion pressure rise rate, and maximum explosion pressure rise rate. The apparatus is suitable for evaluating gas release Pmax values in compliance with UL 9540A standards. Note that gas mixture preparation or liquid flammable substance evaporation equipment is not included and must be configured separately if required.
Application
The Gas Explosion Pressure Test Apparatus is suitable for:
Measurement of maximum explosion pressure (Pmax) and pressure rise rate of industrial and laboratory gases.
Testing gases released from battery systems or other energy storage devices according to UL 9540A.
Laboratory research on explosion characteristics of various combustible gases.
Specific Testing Equipment:
Gas sample chambers for combustion/explosion testing
Pressure and temperature data acquisition systems
Industrial and laboratory safety testing devices
Standards
The system conforms to the following national and international standards:
BS EN 15967:2011 – Determination of maximum explosion pressure and maximum rate of pressure rise of gases and vapours
UL 9540A – Standard for Testing Energy Storage Systems and Equipment
ISO 10156 – Gases and Gas Mixtures – Determination of Flammability Limits
ASTM E1226 – Standard Test Method for Explosibility of Dust Clouds
Parameters
| Unit | Specification |
|---|---|
| Explosion Pressure Acquisition | Dynamic data acquisition card, 24-bit resolution, 128 KS/s sampling frequency |
| Chamber Interior | Built-in 19-inch touch screen, integrated electrical control circuits for mobility |
| Test Container | Sphere structure, internal volume ≈ 20 L, internal radius 168 mm, wall thickness 12 mm, stainless steel, max. pressure 3 MPa |
| Chamber Pressure Rating | Maximum 3 MPa, constant endurance ≥ 2 MPa, engineering safety valve rated 2.5 MPa |
| Ignition Electrode | Center-mounted, diameter 4 mm, tip angle 60°, distance between tips ≈ 5 mm |
| Thermocouple | K-type armored, range 0–1000 °C, accuracy 0.1 °C |
| Explosion Container Dimensions | 1800 (L) × 750 (D) × 1750 (H) mm |
| Control Box Dimensions | 650 (W) × 675 (D) × 1750 (H) mm |
| Power Supply | AC 220 V, 50/60 Hz |
| Weight | Approx. 330 kg |
| Auxiliary Gas Source | Nitrogen |
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