20 Liter Explosion Test Chamber
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Whats/App: +86 185 0176 3615
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This instrument is used to measure the explosion index of dust or gas mixtures. The instrument uniformly sprays a dust or gas mixture into a confined space, and induces the test object to explode under the stimulation of an adjustable energy ignition source. The instrument measures the explosion index at the moment of explosion, including parameters such as the maximum explosion pressure pmax of dust, the maximum explosion pressure rise rate Kst, the lower explosion limit LEL of dust, the maximum explosion pressure pmax of gas, the maximum explosion pressure rise rate Kg, and the gas explosion limits (LEL and UEL), providing data support for the study of explosion suppression measures.
Standards
ASTM E1226:Standard Test Method for Minimum Ignition Energy of Dust Clouds in Air
ASTM E1515:Standard Test Method for Minimum Ignition Temperature of Dust Clouds by Electrically Heated Surface
EN 14034-1:Determination of Explosion Characteristics of Dust Clouds - Part 1: Determination of the Maximum Explosion Pressure (Pmax) and the Maximum Rate of Pressure Rise ((dp/dt)max) of Dust Clouds
EN 14034-2:Determination of Explosion Characteristics of Dust Clouds - Part 2: Determination of the Limiting Oxygen Concentration (LOC) for Dust Clouds
EN 14034-3:Determination of Explosion Characteristics of Dust Clouds - Part 3: Determination of the Minimum Ignition Energy (MIE) of Dust Clouds
EN 14034-4:Determination of Explosion Characteristics of Dust Clouds - Part 4: Determination of the Minimum Ignition Temperature (MIT) of Dust Clouds
EN ISO/IEC 80079-20-2:Explosive Atmospheres - Part 20-2: Equipment Protection Levels (EPL) - Classification of Equipment for Dust Atmospheres
ISO/IEC 6184/1:Explosive Atmospheres - Equipment for Explosive Gas Atmospheres - Part 1: General Requirements for Construction, Testing and Marking
ISO/IEC 6184/2:Explosive Atmospheres - Equipment for Explosive Gas Atmospheres - Part 2: Test Methods and Data for Determining Ignition Temperatures of Equipment Surfaces
Technical Parameters
|
Operating Environment |
(5～45)℃, <85%RH |
|
Explosive Vessel |
20L ball with jacket |
|
Vessel Pressure Resistance |
Design pressure 3.0MPa@25℃ |
|
Sphere Material |
Stainless steel 316 |
|
Sphere Operating Temperature |
Maximum temperature 220℃ |
|
Sphere Volume |
20L |
|
Mezzanine Volume |
1.5L |
|
Diffusion Pressure Sensor |
Range (0～3.5)MPa, overload pressure 10.5MPa, |
|
Dispensing Pressure Sensor |
Accuracy ±0.1% FS, working temperature (-40～105)℃ |
|
Explosive Pressure Detection |
Range (0～200)kPa, overload pressure 600.0 kPa, |
|
Explosive Pressure Detection Channels |
Accuracy ±0.1% FS, working temperature (-40～105)℃ |
|
Explosive Temperature Sensor |
Detection range (0～10.0)MPa, resolution 0.001MPa, |
|
Dust Diffusion Vessel |
Accuracy ±0.5%FS, response time<20μs |
|
Powder Spraying Pressure |
2 pcs |
|
Nozzle Type |
Detection range (0～1000)℃, resolution 0.01℃ |
|
Powder Spraying Delay Time |
Capacity 0.6L, pressure resistance 2.5MPa |
|
Ignition Mode |
2.0MPa |
|
Ignition Delay Time |
Bounce back nozzle |
|
Explosive Pressure Data Acquisition |
(30~50)ms |
|
Ignition Control |
Chemical ignition: customer's own |
|
Ignition Head Condition Detection |
Electrostatic ignition: 15kV, 0.5s |
|
Automatic Gas Dispensing |
60ms |
|
Vacuum System |
Maximum collection rate 100 ks/s, recording time 1s |
|
Snap Ring Diameter x Diameter |
Remote wireless ignition support |
|
Viewing Window |
Electrochemical ignition head contact state and fusion state judgment |
|
Interface |
2 air intakes, 1 air inlet; using partial pressure method of gas distribution, with an independent pressure sensor and electromagnetic valves, gas distribution accuracy ±1%. Solenoid valve, gas distribution accuracy ±0.1% |
|
Power |
Rotary vane vacuum pump, equipped with double impact filters to prevent residual substances from clogging and contaminating the pipeline, and easy to replace |
|
Power |
95mm |
|
Dimensions |
150mm |
|
Operating Environment |
Armored glass, 40mm in diameter |
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