What is the application of combustible gas detector?
(1) Find out the possible leakage points of the device to be monitored, analyze their leakage pressure, direction and other factors, and draw a probe location distribution map, which is divided into three levels: I, II, and III according to the severity of the leakage.
(2) According to the specific factors such as the airflow direction and wind direction of the location, determine the leakage direction of the combustible gas when a large amount of leakage occurs.
(3) According to the density of the leaking gas (greater than or less than air), combined with the air flow trend, a three-dimensional flow trend map of the leakage is synthesized, and an initial point setting plan is made at the downstream position of its flow.
(4) Study whether the leakage state of the leakage point is a micro-leak or a jet. If it is a micro-leak, the location of the point should be closer to the leakage point.
If it is a jet-like leakage, it should be slightly away from the leakage point. Based on these conditions, a final point setting plan is formulated. In this way, the number and variety of products to be purchased can be estimated.
(5) For places with large combustible gas leaks, according to relevant regulations, a detection point should be set every 10-20m.
For unattended small and discontinuous pump rooms, attention should be paid to the possibility of flammable gas leakage. Generally, a detector should be installed at the downwind outlet.
(6) For places with hydrogen leakage, the detector should be installed on the plane above the leakage point.
(7) For media with gas density greater than air, the detector should be installed on the plane below the leakage point, and pay attention to the characteristics of the surrounding environment.
For places where flammable gas is easily accumulated, special attention should be paid to the setting of monitoring points.
(8) For open flammable gas diffusion and escape environments, if there is a lack of good ventilation conditions;
it is also easy for the flammable gas content in a certain part of the air to approach or reach the lower explosion limit concentration. These are monitoring points that cannot be ignored.
