20L Spherical Explosion Tester

Product Description:

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.

Reference Standards：

ASTM E1226 ASTM E1515 EN 14034 - 1 EN 14034 - 2 EN 14034 - 3 EN 14034 - 4 EN ISO/IEC 80079 - 20 - 2 GB/T 16425 GB/T 16426 GB/T 803 ISO/IEC 6184/1 ISO/IEC 6184/2 ISO/IEC 80079 - 20 - 2

Product Features:

1) Can test dust, gas and the simultaneous existence of solid / gas mixture of the explosion parameters of the system.

2) Built-in international common test standards, can be tested according to standard parameters, can also be customized.

3) With chemical ignition and electrostatic ignition two ways, applicable to different test purposes.

4) The explosion container has a water circulation jacket to realize the constant temperature of the test environment.

5) Input the target concentration value, automatic cleaning, vacuum, and complete the gas distribution according to the requirements.

6) Dust dispersing device can completely disperse the dust into the explosion container.

7) The experiment is carried out automatically without human intervention.

8) Real-time display of time and pressure, the test process is more intuitive.

9) The results include time - pressure curve, providing detailed information on the explosion.

10) Remote control, to ensure the personal safety of experimental personnel.

11) The use of computer control, data analysis capabilities, curve characteristics of accurate judgment.

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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