Have you fully understood all the requirements for using hydrogen sulfide gas alarms in underground mines?
1, Core explosion-proof performance needs to meet the standard
There may be combustible gases underground, which can easily cause explosions when encountering electric sparks. Therefore, the explosion-proof performance of gas alarms is the primary concern. This type of equipment needs to be certified by professional organizations and have corresponding explosion-proof qualification certificates. The explosion-proof level should match the type of underground explosion hazard area. Different types of underground mines, such as coal mines and non coal mines, have different explosion-proof levels that are suitable. At the same time, the equipment casing should have sufficient durability, be able to resist collisions, and also have corrosion resistance to avoid damage to the explosion-proof structure caused by casing damage during underground use, which may lead to safety accidents.
2, Adapt to harsh environments and maintain stability
There is a harsh environment with high temperature, high humidity, and frequent vibration underground, and gas alarm devices need to be able to operate stably under such conditions. In terms of temperature adaptation, it is necessary to be able to withstand the common temperature fluctuations underground, without affecting the detection effect in both cold and hot environments. Moisture and dust resistance are also essential, and it is necessary to effectively block water vapor and dust from entering the interior of the equipment. Otherwise, it will reduce the sensitivity of the sensor and may also cause circuit failures. Usually, a high level of protection is required. In addition, the equipment structure should have the ability to resist vibration and impact, to avoid data abnormalities caused by vibration during transportation, installation or operation.
3, Function meets the actual needs underground
The function of the gas alarm should match the actual usage scenario of underground operations. The alarm threshold should be adjustable according to underground safety regulations and have multi-level alarm functions. Through different levels of alarms such as low concentration and high concentration, timely reminders should be issued based on the degree of danger. Considering the noisy underground environment, the alarm sound should be loud enough, and the flashing lights should be clear and obvious to ensure that the staff can detect danger signals in a timely manner.
Portable gas alarm devices need to have strong battery life, with one charge able to meet long-term working needs and avoid power outages that may affect monitoring; Fixed equipment should be equipped with a backup power supply to prevent sudden power outages from causing the equipment to stop running. In some scenarios, the equipment also needs to have data storage function for easy subsequent viewing, or support real-time transmission of data to the monitoring center, so that management personnel can grasp the underground gas concentration situation at any time.
