Chinese
Spanish
Smart Shield for Production Safety: Nexisense Full-Scenario Gas Detection Solutions for the Petrochemical Industry
The petroleum and chemical industries are at the center of high-risk operating environments due to complex process flows and a wide variety of raw materials. In every link of petroleum extraction, chemical synthesis, storage, and transportation, there are threats from flammable, explosive, toxic, and hazardous gases.
Nexisense focuses on providing accurate, stable, and compliant gas detection technology for global petrochemical enterprises. By building a comprehensive monitoring network, we ensure that every production blind spot is under safety control.
In-Depth Perspective: Gas Risk Distribution in the Petrochemical Industry
Risks in the petrochemical industry lie not only in the physical and chemical properties of the gases themselves but also in the complex environment caused by the coexistence of multiple gases. Through deep research into industry pain points, Nexisense has summarized the following three core monitoring needs:
| Monitoring Category | Description of Requirements |
|---|---|
| 1. Comprehensive Prevention of Flammable and Explosive Gases | From methane (CH4) in natural gas extraction to light hydrocarbons in refining, preventing flammable gas leakage is the bottom line of safety. Nexisense detection systems monitor LEL (Lower Explosive Limit) levels in real-time and trigger mandatory linkage before concentrations reach dangerous edges. |
| 2. High-Risk Chemicals and Toxic Gases | Petrochemical production involves many toxic media, such as Sulfur Dioxide (SO2), Sulfur Trioxide (SO3), and TDI (Toluene Diisocyanate). Additionally, chlorinated hydrocarbons like Dichloromethane and Trichloromethane are not only toxic but some are highly corrosive, placing extreme demands on equipment materials. |
| 3. Environmental Monitoring of Benzene Series and VOCs | Volatile organic compounds such as Benzene, Toluene, and Xylene are both raw materials and key environmental monitoring indicators. Nexisense online monitoring solutions accurately distinguish and quantify these volatile factors, helping enterprises achieve both safety and environmental compliance. |
Nexisense Technical Core: Superior Performance in Harsh Conditions
In response to common high-temperature, high-humidity, and highly corrosive environments at petrochemical sites, Nexisense has developed a series of industry-leading gas detection products and technologies.
High-Standard Explosion-Proof and Protection Design
Nexisense industrial-grade detectors have passed rigorous explosion-proof certifications. The shells are made of special aluminum alloy or 316 stainless steel, with high-level waterproof and dustproof performance. They maintain stable signal output even in coastal salt spray environments or extreme cold conditions in the Northwest.
Intelligent Modular Technology
-
Plug and Play: Our sensor modules support digital calibration, allowing maintenance personnel to perform hot-swap replacements on-site without professional tools.
-
High-Precision Resolution: For extremely toxic substances, Nexisense provides PPB-level detection accuracy, ensuring immediate warnings before dosages become harmful to humans.
-
Anti-Poisoning Capability: Optimized sensor electrode structures and filter membranes effectively resist damage to catalytic combustion elements caused by sulfides and silanes.
Industry Proof: Nexisense Safeguarding Famous Enterprises
Nexisense's technical strength has been verified in multiple national projects and multinational corporations. Many petrochemical leaders choose Nexisense as their safety partner:
-
Energy Giants: At drilling and refining sites for Yanchang Petroleum, Changwen Petroleum, and PetroChina, Nexisense systems are responsible for gas warnings at critical process points.
-
Multinational Chemical Groups: Companies like BASF and Archroma (Tianjin) use Nexisense solutions to meet their stringent global safety standards.
-
Fine Chemical Leaders: Enterprises such as Nanning Fengdenghua, Wuhan Qingjiang Chemical, and Jiangtian Chemical utilize our technology for full-range monitoring of special gases like TDI and Methyl Chloride.
FAQ: Professional Q&A on Petrochemical Gas Detection
| Question | Nexisense Professional Answer |
|---|---|
| Q1: How do Nexisense detectors deal with the strong corrosiveness of Hydrogen Sulfide (H2S) at oil extraction sites? | A1: For high-sulfur oil and gas wells, Nexisense uses special anti-corrosion sensor probes. The sensor housing is passivated and equipped with multi-layer stainless steel filters. Additionally, our H2S sensors have excellent humidity compensation to prevent data drift and component corrosion in humid wellhead environments. |
| Q2: Which technical route does Nexisense recommend for VOCs monitoring in petrochemical plants? | A2: For large categories of volatile gases like benzene series, we recommend PID (Photoionization) technology. Nexisense's PID sensors respond extremely fast and can detect organic vapors as low as PPB concentrations. For specific conditions, we can customize 10.6eV or 11.7eV lamp units to achieve selective measurement of target gases. |
| Q3: Chemical storage tank areas are large and wiring is difficult. Does Nexisense have a wireless solution? | A3: Yes. Nexisense provides wireless gas alarm solutions based on LoRa or NB-IoT. This solution requires no trenching or wiring, shortening the construction period by more than 70%, and possesses strong penetration capabilities, covering tank farms within a range of several kilometers. |
| Q4: How to monitor highly toxic substances with extremely low volatility like TDI (Toluene Diisocyanate)? | A4: The difficulty in TDI monitoring is that it easily adsorbs onto pipelines and has an extremely low detection threshold. Nexisense uses high-sensitivity electrochemical sampling technology combined with a special heated sampling pipeline design to effectively prevent TDI vapor condensation and adsorption, ensuring measurement results truly reflect environmental concentrations. |
| Q5: Do Nexisense devices support linkage with existing DCS or PLC systems? | A5: Yes. Our detectors come standard with RS485 (Modbus RTU) interfaces and provide 4-20mA analog signal output. Additionally, HART protocol or CAN bus interfaces can be customized per user requirements to ensure seamless integration with mainstream automation control systems for automatic shut-off and spray linkage. |
| Q6: What are the professional recommendations for the installation height of Nexisense detectors in flammable and explosive places? | A6: Installation height depends on the molecular weight of the target gas. For gases lighter than air like methane, they should be installed above the leak source (usually 0.3-0.6m from the ceiling); for gases heavier than air like benzene and xylene, they should be installed 0.3-0.6m from the ground. Nexisense engineers provide detailed layout suggestions based on your site. |
| Q7: How to identify sensor poisoning? What preventive measures does Nexisense have? | A7: Sensor poisoning manifests as no response to gas readings or a sharp decline in sensitivity. Nexisense intelligent sensor modules feature self-diagnostic functions that monitor internal impedance changes in real-time. We also configure dedicated chemical filters at the sensor front end to intercept poisoning triggers like silicon and phosphorus, extending the life of core components. |
| Q8: What is the calibration cycle for Nexisense products? Can they be calibrated remotely? | A8: According to industry standards, calibration is recommended every 6 months. The Nexisense system supports remote zero-point calibration via a digital console to correct zero drift. For sensitivity calibration, we recommend on-site operation with standard gas to ensure maximum accuracy. |
Summary: Nexisense Committed to a Zero-Accident Petrochemical Future
In the high-risk petrochemical industry, gas detection is not just a collection of instruments, but deep excavation and precise feedback on process details. Nexisense, with its comprehensive strength in sensor R&D, signal processing, explosion-proof structural design, and big data integration, builds a transparent and solid safety barrier for enterprises.
By adhering to industry standards such as GB 50493 and HJ 212, Nexisense not only helps companies avoid safety accidents but also provides a reliable data foundation for the green and efficient transformation of the petrochemical industry.
