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explosion tester manufacturer

20L Spherical Explosion Tester is characterized by accurate test data and ease of use. Its through the compressed air will be a certain mass of dust specimen diffusion to the 20L spherical explosion container, the use of specified energy of the chemical ignition head or electrostatic ignition head of the dust cloud ignition, measurement of the explosion container in the pressure and time change curve, to obtain the maximum explosion pressure in the test and the maximum rate of rise of pressure, and then calculated to get the explosion index. Maximum explosion pressure, maximum explosion pressure rise rate and explosion index and other parameters can be used for explosion relief design and explosion suppression design. The instrument is mainly used for dust explosivity assessment in production and processing places such as aluminum powder, zinc powder, plastic powder, intermediates of organic synthetic drugs, wheat flour, sugar, wood chips, dyes, glue wood ash, milk powder, tea powder, tobacco powder, coal dust, plant fiber dust, and so on, to accurately determine the maximum explosion pressure of the dust cloud, the maximum rate of rise of the explosion pressure, the explosion index, the explosion of the lower limit and the limiting oxygen concentration and other parameters.

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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