Combustible gas high-temperature explosion test bench

1Experimental system:

1.1Explosive container: Capacity1LMaximum work pressure:4MPa Material is316Lstainless steel

1.2Initial experimental conditions:

1.2.1Initial pressure:Environmental atmospheric pressure

1.2.2Initial temperature: ambient temperature~600℃

1.3Precision gas distribution system: using the partial pressure method for precise proportional gas distribution, the multi-component mixed gas is automatically added to the explosive container according to the set ratio, and the gas distribution accuracy reaches ±0.1%.

1.3.1Measurement range of valve pressure:0 ～100.0kPa(Absolute pressure) Resolution:0.1 kPa precision0.1%FS

1.3.2Number of gas distribution channels:5Road（N2TheO2TheH20TheCO2TheCH4）+1Road air (manual valve)

1.3.3System sealing:5Minute pressure drop ≤300Pa

1.4Vacuum system: configuration2LRotary vane vacuum pump and anti explosion shock filter prevent combustion and explosion products from blocking the vacuum pipeline and contaminating the gas distribution system.

1.4.1Vacuum range:0 kPa～100 kPa(Absolute pressure)

1.4.2Vacuum pump ultimate vacuum: ≤0.1Pa

1.5Sampling system: equipped with sampling interfaces and valves for collecting combustion and explosion products.

1.6Temperature control system:

1.6.1Temperature measurement range: room temperature~600℃ Resolution:0.1℃ precision0.1% FS

1.6.2Temperature control range: room temperature~600℃

1.6.3Temperature control accuracy: ±1.0℃

1.6.4Heating method: ceramic heater heating, intelligentPIDAutomatic temperature control.

2Integrated control and data acquisition and processing system:

Adopting computer remote wireless monitoring, data wireless transmission and storage, human-machine separation, to ensure the personal safety of test personnel.

2.1Automatic control mode:

Set control parameters, the experimental device automatically controls temperature, evacuates, automatically adds multi-component gas samples into the explosion container, ignites automatically, collects explosion parameters and stores them in a data file according to the set parameters. Draw the explosion parameter time curve, and the data can be saved toEXCELFurther analysis and processing will be conducted.

2.2Manual control mode:

By simulating the keyboard, independent operations such as vacuuming, gas distribution, ignition, data acquisition and storage, container cleaning, etc. can be performed, and data files can be read into the computer for analysis and processing.

2.3Synchronous control and multi-channel dataset processing system:

configuration4The channel data acquisition system sets control parameters, and the experimental device automatically evacuates according to the set parameters, automatically adds multi-component gas samples into the explosion container, automatically ignites, automatically collects explosion parameters, and stores them in a data file. Draw the explosion parameter time curve, and the data can be saved toEXCELFurther analysis and processing will be conducted.

2.3.1Explosion pressure detection range:0～4MPa(Absolute pressure) Resolution:0.001MPa precision0.25%FSResponse time: less than1ms

Configuration: Standard configuration1Support high-speed pressure sensor.

2.3.2Flame temperature detection range:0～1200℃ Resolution:1℃ precision0.25%FS Response time: less than 1ms Working pressure: 6MPaMAX

Configuration: Standard configuration1Support high-speed flame temperature sensor.

2.3.3Sampling rate:5K SPS

2.3.4Maximum sampling time:6S(4通道)

3Explosion detection system:

This device adopts dual detection of pressure and temperature, and automatically determines whether an explosion has occurred by judging the pressure and temperature changes inside the explosive container.

4Ignition system:

Adopting high-frequency electric spark ignition

Electric spark energy range:0～300J Pulse voltage:15KV Electrode spacing:3-6millimeter

5Security protection system:

5.1Adopting computer wireless remote monitoring, wireless data transmission, human-machine separation, to ensure the personal safety of test personnel.

5.2The automatic control system has a self diagnostic function. If a sealing fault occurs, an alarm will prompt and the test will automatically stop.

5.3Configure an emergency stop button that can be quickly pressed in case of an emergency to ensure the safety of laboratory personnel and equipment.

6Electricity Source:220 V±10％AC 50Hz±2Hz Power: ≤3000W

7Workstation: Laptop（CPU-I5 memory4G hard disk500G）

8Environmental monitoring:

Atmospheric pressure measurement range: 80～110.0kPa Resolution:0.1 kPa

Environmental temperature measurement range: -40～80℃ Resolution:0.1℃

Range of environmental humidity measurement: 0～100%RH Resolution:0.1%RH

9Environmental requirements:

Ambient temperature10～40℃

ambient humidity:5%～85%RH