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Jiangsu Yuanwang Instrument Group Co., Ltd.

Gas Detection, Flammable Gas Detection, Gas Detection System manufacturer / supplier in China, offering Factory Sales Fixed Hydrocarbon Gas Detection System, High Quality Ceramic Heater with Cheap Price, Factory Sales Electric Heating Tube Heater Ceramic Heater for Lub Oil and so on.

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Factory Sales Fixed Hydrocarbon Gas Detection System

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Min. Order: 1 Piece
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Basic Info
  • Model NO.: QBNC
  • Signal Transmission: Wired Alarm
  • Application: Indoor
  • Working Principle: Electromechanical
  • Alarm Volume (within 1m): ≥100dB
  • Usage: Flammable Gas
  • Origin: China
  • Type: Industry Alarm
  • Certification: CCS
  • Sensor Type: Infrared Alarm System
  • Transmission Mode: Cable
  • Receive Frequency: 50Hz
  • Trademark: YUAN YI
  • HS Code: 9026100000
Product Description
Production description:
According to requirements of IMO Resolution MSC.98(73) The International Code For Fire Safety Systems, Resolution MSC.292(87) Amendments To The International Code For Fire Safety Systems, and MSC.1/Circ.1370 The Design, Construction And Testing of Fixed Hydrocarbon Gas Detection Systems, we designed and developed QBNC type Fixed Hydrocarbon Gas Detection System. The system mainly consists of analyzing unit, display control unit and pipelines. Display control unit exists in the SAFETY AREA and analyzing unit lies in HAZARDOUS AREA. It is composed of gas sampling lines, exhaust lines, calibration lines, flame arrestor, and penetrations etc. Analyzing unit detects the hazardous gas and passes gas concentration signal to the display control unit for using. Display control unit indicates gas concentration value of each sampling point in real-time, and alarm signal will be sent out if gas concentration reaches or exceeds set alarm level; meanwhile various key parameters can be set or controlled.
QBNC type Fixed Hydrocarbon Gas Detection System is used for measuring hydrocarbon gas concentrations in all ballast tanks and void spaces of double-hull and double-bottom spaces adjacent to the cargo tanks, including the forepeak tank and any other tanks and spaces under the bulkhead deck adjacent to cargo tanks, realizing continuous gas sampling in hazardous area and real-time analyzing & monitoring alarm.
 
1. Main technical indexes
Model Detection gasRange AccuracyMin. readingResponse
time
QBN-09F-C-BFlammable gas (Ex)0-100%LEL±5%F.S0.1%LEL<30 s
QBN-09IR-C-B\EFlammable gas (Ex)0-100%LEL±5%F.S0.1%LEL<30 s
QBN-09H-C-B\EHydrogen sulfide (H2S)0-100ppm±5%F.S1ppm<30 s
QBN-09O-C-BOxygen (O2)0-30%Vol±5%F.S0.1%vol<30 s
1.1 Repeatability: <2%
1.2 Zero drift: <±2%(F.S) /6h
1.3 Working temp. -20ºC~50ºC
1.4 Ambient humidity: <90%RH
1.5 Working principle of sensor: electrochemical type for oxygen and hydrogen sulfide gas, catalytic combustion type and infrared type for flammable gas
1.6 Lifetime: three years for flammable gas sensor, two years for oxygen and hydrogen sulfide gas sensor
 
2. Technical specifications of sensors
2.1 Flammable gas sensor
1. Detection type: diffusion type
2. Operating type: fixed type, chronic and continuous working
3. Detection gas: flammable gas in the air (Ex)
4. Range: 0~100%LEL
5. Accuracy: ±5% F.S
6. Min. reading: 1%LEL
7. Response time: ≤30s
8. Sensor type: catalytic combustion type
9. Power supply: 24V DC
10. Working current: flammable gas<160mA (max.)
11. Output signal: three wire 4~20mA standard signal output
12. Material of housing: aluminum die casting
13. Outline dimension: 183×143×107mm (with display)
                   183×143×93mm (without display)
14. Transmission cable: three-core shield cable, sectional area 3×1.5mm2
15. Transmission distance: ≤1000m
16. Protection class: IP66
17. Installation type: wall mounting, pipeline mounting
18. Weight: with display ≤1.5kg   without display ≤1.2kg
19. Explosion proof type: flameproof type
20. Ex. mark: Ex d II CT6
 
2.2 Hydrogen sulfide gas sensor:
1. Detection gas: hydrogen sulfide gas in the air (H2S)
2. Range: 0-100ppm, can be determined according to actual requirements
3. Accuracy: ±5% F.S
4. Min. reading: 1ppm
5. Response time: <30s
6. Lifetime: 24 months
7. Sensor type: electrochemical type
8. Power supply: 24V DC
9. Detection type: diffusion type
10. Operating type: fixed type, chronic and continuous working
11. Output signal: standard two wire 4~20mA analog signal output
12. Material of housing: aluminum die casting
13. Installation type: wall mounting, pipeline mounting
14. Ex. mark: Ex dII CT6 or Ex ia IICT4 Ga
15. Protection class: IP66
16. Working temp.: -20~50ºC (special requirements can be determined as needed)
17. Working humidity: ≤90%RH
18. Outline dimension: 183×143×107mm (with display)
                   183×143×93mm (without display)
19. Weight: with display ≤1.5kg   without display ≤1.2kg
 
2.3 Oxygen gas sensor
1. Detection gas: oxygen gas in the air (O2)
2. Range: 0-30%vol , can be determined according to actual requirements
3. Accuracy: ±5% F.S
4. Min. reading: 1ppm
5. Response time: <30s
6. Lifetime: 24 months
7. Sensor type: electrochemical type
8. Power supply: 24V DC
9. Detection type: diffusion type
10. Operating type: fixed type, chronic and continuous working
11. Output signal: standard two wire 4~20mA analog signal output
12. Installation type: wall mounting, pipeline mounting
13. Signal transmission distance: ≤1000 meters
14. Material of housing: aluminum die casting
15. Ex. mark: Ex dII CT6 or Ex ia IICT4 Ga
16. Protection class: IP66
17. Working temp.: -20~50ºC (special requirements can be determined as needed)
18. Working humidity: ≤90%RH
19. Outline dimension: 183×143×107mm (with display)
                   183×143×93mm (without display)
20. Weight: with display ≤1.5kg   without display ≤1.2kg
 
2.4 Infrared flammable gas sensor
1. Detection type: diffusion type
2. Operating type: fixed type, chronic and continuous working
3. Detection gas: flammable gas in the air (Ex)
4. Range: 0 ~ 100%LEL
5. Accuracy: ±5% F.S
6. Min. reading: 1%LEL
7. Response time: <30s
8. Sensor type: infrared type
9. Power supply: 24V DC
10. Working current: flammable gas <160mA (max.)
11. Output signal: three wire 4~20mA standard signal output
12. Material of housing: aluminum die casting
13. Outline dimension: 183×143×107mm (with display)
                   183×143×93mm (without display)
14. Transmission cable: three-core shield cable, sectional area 3×1.5mm2
15. Transmission distance: ≤1000 meters
16. Protection class: IP66
17. Installation type: wall mounting, pipeline mounting
15. Ex. mark: Ex d II CT6 or Ex dia IICT4 Gb
20. Weight: with display ≤1.5kg   without display ≤1.2kg 
 
Working principle
The flammable gas sensors of QBNC in the tanks are used to detect the flammable gas concentration in the air at any times and output detection signal to gauging cabinet of device. The signal is processed by the intelligent display controller in the gauging cabinet and indicated percentage of gas concentration. The device provides audible & visible alarm when the flammable gas concentration in the tanks reaches the setting alarm value. The device respectively alarms while the flammable gas concentration reaches 5% and 10%. The device configures curve fit, figure filtering and SCM intelligent signal processing technology to ensure the device steady and reliable.

System Schematic Diagram
Factory Sales Fixed Hydrocarbon Gas Detection System
Factory Sales Fixed Hydrocarbon Gas Detection System
Factory Sales Fixed Hydrocarbon Gas Detection System

Features
1. Function of manual and automatic gas sampling and analyzing;
2. Function of override in case of piping blockage;
3. Function of audible and visible alarm for gas concentration;
4. Function of horn accept, flash accept and alarm reset;
5. Function of fault alarm;
6. Easy installation and maintenance;
7. Whole modular structure design, easy for system integration and maintenance.
 
Packing & delivery
Packing: carton or wooden case
Shipping: by air, sea, or courier Fedex, DHL, TNT, UPS
 
Certificates
Class certificate (Type approval): CCS
EX-proof certificate: NEPSI
Factory Sales Fixed Hydrocarbon Gas Detection System

 
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