DukeTech-Portable Coal Spontaneous Combustion Monitor-DKCSF MS-1P

Functions：

a）The function of using database to analyze the change of gas content in a monitoring point in a period of time;

b）Prediction function of spontaneous combustion fire:by calculating the concentration of each component,alkane-alkene ratio and chain alkenes ratio,timely and accurately reflect the change of fire source temperature;by using triangular rule to discriminate the degree of explosion danger;

C）Historical data query function:system data storage for more than ten years.Provide various data for fire prevention and extinguishing;

d）The functions of report,curve,storage and printing.It can provide daily,monthly,spectrogram graph and gas content trend reports.

e）The functions of automatic alarm of gas concentration exceeding the setting limit,flow display and automatic adjustment.

f）It has the function of networking,realizes the sharing of analysis data,facilitates the leaders and dispatchers to directly detect the changes of underground gas,and can be monitored by APP on the mobile terminal and accessed by remote web pages.

Technical Data:

 Response time:

ine gases<120sN

 Sampling method:

xtraction type, pumping length is not E

000 meters;,less than 1

:Measurement range

0~5%₂CO 0~1% CO  

0~1% ₄H₂C 0~1%  ₄CH

0~1% ₂H₂C 0~1% ₆ H₂C

0~1%₂SO 0~1% O₂H  

0~80% ₂N      0~25%₂O

Temperature：(-5-100)℃     Pressure：0~1000KPa

Detection Limit：

5ppm ₂ CO1ppm    CO

0.5ppm ₄H₂C 0.5ppm  ₄CH

0.5ppm ₂H₂C 0.5ppm ₆H₂C

0.5ppm ₂SO 100ppm O₂H

5%0. ₂N 1%0.  ₂ O

Temperature and Pressure Resolution：

Temperature:0.5℃       Pressure:0.1KPa  

.±2% measurement valueAccuracy：

.24-hour continuous monitoring or manual settingRunning time:

factory completed and without carrier gas and consumables.Calibration:

220VAC@50Hz, power < 100W or 100AH battery.Operating voltage：

Standard：

Low Voltage Measurement Directive 2006/95/EC and electro magnetic EMC Directive2004/108/EC EN 50270: 2006, EN 61000-3-2: 2006, EN 61000-3-3: 1995 + A1: 2001 + A2: 2005, EN 61010-1: 2001

Safety standards：

EN61010-1 (2001), IEC 61010-1 (2001), CAN/CSA-C22.2 No. 61010-1 (2004)and UL 61010-1 (2004 incl. rev. 2005)

l Detection limits of ppb, sub-ppm levels.

l Dust filter, single tube,extraction pump,monitoring computer, spectrum multi-gas sensor, thermal conductivity multi-gas sensor, system software composition.

Features：

Multi-point sampling can be customized.l 

Good reliability.l 

Lightweight .l 

Easy to carry.l 

igh-efficiency measurement.Hl 

ow detection limit.Ll 

igh measurement accuracy.Hl 

Advantages：

Temperature sensor and pressure sensor can be connected to the multi-point sampling unit to measure the sampling gas temperature, air temperature, surface temperature, working temperature and pressure of the multi-point sampling unit.

The system analysis host is based on infrared spectroscopy technology, has pulse infrared light source, and forms 10 spectral bands in mid-infrared region through narrow-band optical filter for gas analysis; ultra-high sensitivity patented optical microphone technology with enhanced cantilever beam can be realized through 10 narrow-band optical filters, and ultra-narrow optical filter can remove the interference of background gas; Multi-spectral region can help to minimize the cross sensitivity. It can measure up to 9 kinds of gases at the same time.

Principle：

The Coal Spontaneous Combustion Monitoring System of Duketech is used to monitor the gas content of O₂, N₂, H₂, He,CO, CO₂, CH₄, C₂H₄, C₂H₆, C₂H₂,H₂S,SO₂,temperature, pressure, and so on. The regularity of formation of multi-component index gases during spontaneous combustion of coal is detected, which provides technical support and theoretical support for the identification of early hidden danger characteristic information of spontaneous combustion of coal.It can be used as a monitoring system for large-scale coal spontaneous combustion test bench and sample test bench, as well as provides experimental conditions for a multi-direction science such as coal fire prevention and fire science and improves the efficiency of coal mine production.