Shenhai Explosion-Proof
Model Meaning
Implementation Standard
GB/T3836.1、GB/T3836.2、GB/T3836.3、GB/T3836.4、GB/T3836.5、GB/T3836.17、IEC 60079-0、IEC 60079-1、IEC 60079-2、IEC 60079-7、IEC 60079-11、IEC 60079-13、EN 60079-11、EN 60079-13。
Technical Parameter
1. Explosion-proof marking: Ex db eb ib mb pz IIC T4 Gc
2. Power supply: 220VAC ±10%, 50Hz or AC380V ±10%, 50Hz or as per user requirements;
3. Protection Rating: IP65 Audible and Visual Alarm: Activates when hazardous gas concentration exceeds threshold (25% LEL) inside the enclosure Audible and Visual Alarm: Activates when toxic gas concentration exceeds threshold (12.5 ppm) inside the enclosure Normal Indoor Pressure Range: 30–100 Pa Enclosure Material: Carbon steel, stainless steel Dimensions: Customized per user requirements
| Implementation Standards | Degree of protection |
| Explosion-Proof Marking | IP66 |
| Power Supply | Ex de ib [ib] P II BT4 Gb, Ex de ib [ib] P II CT4 Gb, DIP A20 TA T4 |
| Protection Rating | 220V AC ± 10%, 50Hz or AC 380V ± 10%, 50Hz or according to user requirements |
| Sound and light alarm when the concentration of hazardous gases in the cabin exceeds the limit (25% LEL) |
|
| Sound and light alarm when the concentration of toxic gas in the cabin exceeds the limit (12.5ppm) | |
| Normal indoor pressure value | 30-100pa |
| Appearance material | carbon steel, stainless steel |
| External dimensions | customized according to user requirements |
Product Features
1. The positive pressure explosion-proof analysis cabin integrates the assembly, installation, and application of industrial online instruments, finding widespread use in oilfields, refineries, and chemical plants.
2. This series provides explosion-proof solutions for centralized on-site control, command coordination, process analysis, and instrument monitoring, offering unmatched advantages over other explosion-proof structures.
3. The system comprises the main chamber structure, positive pressure control system, positive pressure ventilation system, pressure monitoring system, combustible gas detection system, toxic gas detection system, high-temperature alarm system, smoke alarm system, audible-visual alarm interlock system, lighting system, temperature/humidity regulation system, universal power supply system, and user electrical system;
4. An explosion-proof air conditioner is installed indoors to regulate temperature, providing constant temperature and humidity control;
5. The power distribution system employs a pipeline configuration with explosion-proof control boxes;
6. The lighting system utilizes explosion-proof ceiling lights and explosion-proof emergency lights, with standard illumination provided by tubular fluorescent lamps;
7. The chamber incorporates ventilation, air exchange, and filtration devices. The intake duct of the chamber must be located in a non-hazardous area;
8. Features double-sealed doors with glass viewing windows and escape doors, providing dustproof and waterproof capabilities;
9. Fully enclosed system with anti-static, spark-proof, environmentally non-polluting, corrosion-resistant, and anti-interference functions;
10. Utilizes PLC integrated control technology for stable and reliable system operation, with overall grounding and ground resistance <4Ω.
Typical Solution Diagram
System Components
| Diagram | Name | Specification Model | Key Parameters | Remarks |
|---|---|---|---|---|
 | Process Control Chromatograph | ABB PGC5000 | 1. Explosion-proof rating: Class 1, Div 1, Gr. B.C. DT4 2. Multiple models of PGC5000 Smart Ovens™ (column ovens) capable of performing any gas or liquid phase analysis project 3. True color 26.42 cm (10.4-inch) SVGA LCD display 4. Graphical human-machine interface (HMI) for viewing real-time chromatograms | Configure according to design requirements |
 | Continuous Analyzer | ABB EL3060 | 1. Explosion-proof marking: II 2G; Ex de IIC T4 2. Touchscreen display ensures safe operation. 3. Flameproof instruments specifically designed for hazardous areas 4. Compact structure for easy integration 5. Analyzer consists of a control unit and analysis modules 6. Analysis modules include infrared photometer Uras26, paramagnetic oxygen analyzer Magnos206, thermal conductivity analyzer Caldos27, Caldos25 | Configure according to design requirements |
 | Continuous Analyzer | ABB AO2000 | 1. Explosion-proof rating: Class 1, Division 2, Groups A, B, C, DT4 2. One central unit and up to four analyzer modules 3. Analyzer modules include photometers, in-situ laser analyzers, oxygen analyzers, thermal conductivity analyzers, infrared analyzers, ultraviolet analyzers, and FID analyzers | Configure according to design requirements |
 | Pre-treatment System | Required Configuration | 1. The sample pretreatment system comprises sampling probes, pre-treatment stages, pretreatment units, and sample transfer lines. 2. It performs functions including pressure reduction, filtration, cooling, temperature and flow control, and flow switching. 3. Instrumentation and piping components are sourced from internationally renowned brands such as Swagelok, Parker, Fitok, and SMC. | |
 | Gas Detector | Configure as per design requirements | 1. Explosion-proof marking: Ex db IIC T6 Gb 2. Detects toxic, hazardous, flammable, and explosive gas concentrations 3. Operating voltage: DC 12–30V Signal output: 4–20 mA + alarm contact | Configure according to design requirements |
 | PLC | SIEMENS SIMATIC | 1. Control the safety detection system for the analytical cabin 2. Control the switching of multi-channel pretreatment flow paths | |
 | Explosion-Proof Exhaust Fan | Configure as per design requirements | 1. Explosion-proof marking: Ex db IIC T4 Gb 2. Voltage rating: AC 220V 50Hz 3. Airflow: 24m³/min | |
 | Audible and Visual Alarm | BBJ-220 | 1. Explosion-proof marking: Ex db IIC T4 Gb 2. Rated voltage: AC 220V 3. Integrated sound and light design | |
 | Explosion-Proof Distribution Box | Configure as per design requirements | 1. Explosion-proof marking: Ex db IIC T6 Gb 2. Voltage rating: AC 220V/380V 50Hz 3. Rated current: 63A | |
 | Explosion-Proof Junction Box | Configure as per design requirements | 1. Explosion-proof marking: Ex db IIC T6 Gb 2. Voltage rating: AC 220V/380V 50Hz 3. Rated current: 63A | |
 | Explosion-Proof Control Box | Configure as per design requirements | 1. Explosion-proof marking: Ex db eb IIC T6 Gb 2. Voltage rating: AC 220V/380V 50Hz 3. Rated current: 16A | |
 | Explosion-Proof Fluorescent Lamp | BPY96 | 1. Explosion-proof marking: Ex db IIC T6 Gb 2. Voltage rating: AC 220V/380V 50Hz 3. Rated power: 30W | |
 | Explosion-Proof Plug-in Device | AC-16/220 | 1. Explosion-proof marking: Ex db eb IIC T6 Gb 2. Voltage rating: AC 220V 50Hz 3. Rated current: 16A | |
 | Explosion-Proof Switch | BZM8030-10/220 | 1. Explosion-proof marking: Ex db eb IIC T6 Gb 2. Voltage rating: AC 220V 50Hz 3. Rated current: 10A | |
 | Explosion-Proof Air Conditioner | BKFR | 1. Explosion-proof marking: Ex db eb ib mb IIC T4 Gb 2. Voltage rating: AC 220/380V 50Hz 3. Rated cooling capacity: As required 4. Rated heating capacity: As required | |
 | Gas Sampling Pump | buhler | 1. Explosion-proof marking: Ex II2 G E Ex c IIC T1-T4 2. Rated voltage: AC 230V 3. Rated flow rate: 400L/H |
Applicable Scope
1. Suitable for Zone 2 explosive gas environments;
2. Temperature classes T1-T4;
3. Suitable for flammable and explosive gas environments in petroleum extraction, refining, chemical processing, military applications, offshore oil platforms, oil tankers, and similar settings.
