When LPG is in liquid form, its volume is highly compressed. Once it leaks, it will rapidly vaporize into gas that is 250 to 350 times its original volume. This means that even a small amount of liquid leakage can generate a large amount of flammable gas, and the shock wave and destructive power produced by the explosion are devastating, sufficient to destroy a house.
LPG itself is non-toxic or has very low toxicity, but it is a simple asphyxiating gas. When its concentration in the air is too high, it will replace oxygen and reduce the oxygen content in the environment (usually below 19.5% is considered an oxygen-deficient environment). When people are exposed to an oxygen-deficient environment, they will quickly experience symptoms such as dizziness, nausea, confusion, and breathing difficulties. Within a few minutes, they may fall into a coma or even die from asphyxiation due to oxygen deficiency. This is particularly dangerous in confined Spaces such as basements and poorly ventilated kitchens.
LPG gas leak detector has a vital importance in ensuring the safety of personnel and property in industrial production. It is explosion-proof industrial combustible gas safety detection instrument, adopting catalytic combustion sensor, features high detection accuracy, stable performance, high sensitivity and long service life. It is suitable for measuring combustible/toxic gases and flammable and explosive harmful gases with concentrations lower than the lower explosive limit of the target gas in various environments where gas production, storage and filling are used.
The gas detector adopts a four-wire working mode, which is stable and reliable. It features a modular design, is easy to install and maintain in the later stage. The wiring adopts a four-wire system (2 power lines of DC24V and 2 signal lines) transmission mode, converting the gas concentration signal in the air into a digital signal. When the gas concentration reaches the preset alarm value, a set of passive contact switch quantity signals are output. It features long transmission distance and good anti-interference performance.
The explosion-proof type LPG gas detector converts the concentration of flammable gas detected by the sensor into an electrical signal, which is transmitted to the controller through cables. The higher the concentration of flammable gas, the stronger the electrical signal. When the gas concentration reaches or exceeds the alarm point set by the gas alarm controller, the gas alarm controller will issue an alarm signal and can start external devices.
The application scenarios of industrial LPG detectors mainly focus on four categories: production and storage, gas usage, logistics and transportation, and confined Spaces. Its significance lies in taking advantage of the physical property that LPG is heavier than air to achieve precise early warning before gas deposits in low-lying areas and triggers an explosion.The fixed LPG detector can achieve 24-hour continuous monitoring. When the gas concentration is far below the lower explosive limit (usually below 20%LEL), it will issue an alarm and link the shut-off valve and fan to nip the accident in the bud.