- Gas Detection Equipment in the Drinks Industry
- Gas Detection Equipment in the Gas & Oil Industry
- Gas Detection Equipment in the Household
- Gas Detection Equipment in the Commercial Field
- Gas Detection Equipment in the Metallurgical Industry
- Gas Detection Equipment in the Energy Storage Industry
- Gas Detection Equipment in the Pharmaceutical Industry
Equipment Selection and Layout: Technical Considerations for Energy Storage Environments
Gas detection equipment in the energy storage industry must adapt to high temperatures (up to 800°C during battery thermal runaway), strong corrosion (HF, H₂SO₄), high humidity (sealed battery modules), and electromagnetic interference (dense electrical equipment). Selection and layout should follow these principles:
(1) Selection by Monitored Gas Type
| Gas Type | Recommended Detector Type | Principle and Application | Key Parameters |
| Carbon Monoxide (CO) | Electrochemical | Detection limit ≤5 ppm, response time ≤30 sec, suitable for early CO release during thermal runaway | Range 0–500 ppm (or higher), accuracy ±2% FS |
| Hydrogen (H₂) | Thermal Conductivity, Infrared | Thermal conductivity (anti-interference, suitable for high-pressure/high-temperature environments); Infrared (long-term monitoring, anti-silicon poisoning) | Thermal conductivity: detection limit ≤1% LEL (~0.5% VOL); Infrared: range 0–100% VOL |
| Hydrogen Fluoride (HF) | Electrochemical (PTFE-Coated Sensor) | Detection limit ≤0.1 ppm, corrosion-resistant material (e.g., PTFE coating) | Range 0–10 ppm, response time ≤60 sec |
| Organic Solvent VOCs | PID Photoionization Detector | Detection limit as low as ppm/ppb (e.g., carbonate solvents), suitable for electrolyte-leakage VOCs | Range 0–2000 ppm (or lower ppb levels), response time ≤10 sec |
| Oxygen (O₂) | Electrochemical | Range 0–25% VOL (or 0–30% VOL), alarm thresholds: ≤19.5% VOL (hypoxia) or ≤23.5% VOL (oxygen enrichment) | Accuracy ±2% FS |
| Sulfur Hexafluoride (SF₆) | Infrared or Electrochemical | Infrared (high specificity for SF₆, anti-interference); Electrochemical (low-concentration monitoring) | Range 0–1000 ppm (or lower), response time ≤30 sec |
(2) Adaptation to Environmental Conditions
● High-Temperature Environments (e.g., Battery Thermal Runaway Areas): Use high-temperature detectors(operating temperature ≥200°C, some models up to 800°C) or cooling protection sleeves (e.g., air cooling) to reduce sensor exposure.
● Strong Corrosion Environments (e.g., Electrolyte Tanks, HF Leakage Areas): Equipment housings should be made of 316L stainless steel or Hastelloy, with sensors coated in PTFE or ceramicto resist HF, H₂SO₄, and other corrosive gases.
● High-Humidity Environments (e.g., Sealed Battery Modules): Detectors must have waterproof breathable membranesto prevent internal condensation while allowing gas diffusion.
● Electromagnetic Interference Areas (e.g., Near PCS, Transformers): Choose EMI-resistant designs(shielded cables, grounded metal housings) to ensure stable signal transmission.
(3) Layout Principles: Covering Critical Leakage Points
● Fixed Detectors (Primary Choice): Installed at fixed locations prone to gas leaks(e.g., above battery cells (0.3–1 meter), at the top of battery modules (0.1–0.3 meter), atop storage tanks (0.1–0.3 meter), near pipeline valves (0.3–0.6 meter)).
● Key Area Coverage:
1) Battery Modules: CO/H₂detectors above battery clusters (thermal runaway gas paths); VOC detectors near electrolyte trays (leak accumulation); HF detectors at module bases (HF settling).
2) Electrolyte Storage Areas: Sulfuric acid mist detectors at tank tops (0.1–0.3 meter); hydrogen detectors near tank vents (hydrogen accumulation).
3) Power Distribution Rooms: SF₆detectors near GIS equipment (0.5 meter); CO detectors above cable trenches (electrical overheating risks).
4) Hydrogen Energy Areas: Hydrogen detectors at tank tops (0.1–0.3 meter), pipeline flanges (0.3–0.6 meter); oxygen detectors in electrolysis zones (monitoring mix ratios).
● Portable Detectors (Supplementary): Used by maintenance personnel entering confined spaces (e.g., underground hydrogen storage, battery disassembly areas) for pre-entry checks or emergency leak investigations.