In modern biopharmaceutical production systems, ethanol serves as a core solvent and is deeply integrated into the key processes of drug synthesis and extraction. In production facilities equipped with stainless steel ethanol storage tanks and complex associated piping systems, ethanol—classified as a Class A flammable liquid—poses significant risks due to its high volatility and wide explosive limits (3.3%–19%). When it accumulates in confined spaces, it can readily form highly destructive explosive gas mixtures. This invisible risk, lurking around pipe flanges, valves, and storage tanks, poses a severe challenge to the intrinsic safety of the facility.

　　Currently, many pharmaceutical companies still face a core challenge in managing high-risk chemicals: traditional security measures are lagging behind. Given the widespread distribution and dense monitoring points of the tank and pipeline network, traditional manual inspection methods are not only time-consuming and labor-intensive but also struggle to accurately detect instantaneous, trace-level leaks; Furthermore, in the event of an on-site anomaly, the lack of an efficient automated response mechanism often leads to severe delays in emergency response, making it easy to miss the optimal window for intervention and potentially triggering irreversible combustion or explosion accidents caused by static electricity or equipment sparks.

　　In light of the need for precise control of high-risk chemicals, establishing a proactive explosion-proof safety system that integrates real-time, accurate monitoring, rapid automatic alerts, and intelligent coordinated response has become an essential choice for enterprises to ensure production continuity and protect personnel safety. Leveraging its deep technical expertise in gas detection and a thorough understanding of the unique operating conditions in biopharmaceutical production facilities, Yiyuntian has developed a highly reliable ethanol leak monitoring and explosion-proof control solution. We are committed to building an impenetrable safety barrier for enterprises, eliminating major accident hazards at their very inception.

　　1. Solution Background:

　　The active pharmaceutical ingredient (API) production workshop of a certain biopharmaceutical enterprise is equipped with 10 stainless steel ethanol storage tanks (5 m³ each) and associated pipelines, which are used in drug synthesis and extraction processes. Ethanol is classified as a Class A flammable liquid with a flammable range of 3.3%–19% (by volume). In the event of a leak, it can readily form an explosive gas mixture, posing significant safety risks. The enterprise needs to establish a comprehensive leak detection and explosion-proof safety system to enable real-time early warning, automatic response, and integrated control, thereby preventing explosion accidents.

　　2. Technical Specifications:

　　Equipment Type Technical Parameters Function

　　Ethanol Gas Detector Measurement range 0–100% LEL, accuracy ±3% FS, response time <30 s Real-time detection of ethanol vapor concentration in the environment; triggers an alarm when levels exceed limits

　　Explosion-Proof Audible and Visual Alarm Volume ≥110 dB, flashing frequency 1 Hz On-site audible and visual warning to alert personnel to evacuate

　　Emergency Shut-off Valve Pneumatic/electric type, explosion-proof rating Ex d II CT4 Automatically shuts off the tank discharge pipeline upon receiving an alarm signal

　　Explosion-proof Exhaust Fan Airflow ≥10,000 m³/h, explosion-proof rating Ex d II BT4 Activates automatically to rapidly dilute leaked ethanol vapors

　　3. Solution:

　　Install fixed ethanol gas detection and alarm devices at 5-meter intervals

　　1. Level 1 Alert (Concentration ≥ 25% LEL): The controller displays a pop-up alarm, and on-site audible and visual alarms are activated, prompting inspection personnel to locate the leak.

　　2. Level 2 Alert (Concentration ≥ 50% LEL): Automatically triggers the tank emergency shut-off valve to close, while simultaneously activating the explosion-proof exhaust fan for forced ventilation and dilution.

　　4. Products Used:

　　Fixed Ethanol Gas Detection and Alarm System

　　MIC-500S-C2H6O-LEL

　　Workplace safety is not only the cornerstone of sustainable development for biopharmaceutical companies but also a solemn commitment to the safety of every frontline employee. By comprehensively deploying Yiyuntian’s professional ethanol gas detection and alarm system, companies can achieve round-the-clock, comprehensive, and precise monitoring of ethanol concentrations in tank farm areas and around transmission pipelines. Leveraging a multi-dimensional, three-dimensional alarm mechanism combining “sound, light, and vibration,” along with millisecond-level intelligent integration with equipment such as exhaust fans and shut-off valves, the system enables efficient closed-loop management—from detection to response—the moment a leak risk arises, truly achieving prevention before the fact. This not only strictly adheres to national workplace safety regulations but also marks a significant milestone for enterprises in their transition toward modern, intelligent management.

　　As industrial safety requirements continue to evolve and equipment becomes increasingly intelligent, Yiyuntian will remain committed to its core business of gas detection. We will continuously strengthen our technological innovation and our ability to adapt to complex operating conditions, driving the evolution of gas monitoring toward a smarter, more precise digital future. We are dedicated to transitioning from a single-product supplier to a comprehensive safety partner for the entire lifecycle of enterprises. With exceptional product performance and professional technical services, Yiyuntian is committed to safeguarding safe production in the biopharmaceutical industry. We aim to help enterprises move forward steadily in an optimal environment free of accidents and hidden hazards, working together to create a safe and efficient future for production.