Fixed installation type gas alarm is installed in one place, it's position is not easy to change, its scope and is limited to sight, so selecte installation location problem is very important.Combustible gas detectors installed quantity depends on the size, site of the gas detector role play to the maximum, avoid unnecessary waste, also avoid detection loophole, this you need to understand the protection of the combustible gas detector radius and testing area.Tested for a three dimensional space and larger scale industrial production device, is often not a few of them can ensure the effect of point to point, so for the stationing of the sparse degree, upper and lower height as well as the possible leak point distance are relatively complex problems, such as this should not only consider the rationality of the investment and the acceptable level, more want to consider the practical effect of investment, in order to ensure safety in production.
At present some countries or a large industrial sector has made a variety of gas safety testing of stationing principles and a set number of rules.For example to everyone who has a gas leak can production equipment and warehousing, cargo ship cabins and other places, you must configure gas alarm controller round-the-clockmonitoring,otherwise not allowed to start running.
So how to work out the quantity you need to install? Plz refer to the followings
1. First of all, please make sure all you have to monitor device or workshop, where is the possible leak area, and calculates their leak pressure and possible leak amount per unit time, let the cat out of the direction, etc., draw the chess lattice distribution, and that its severity.
2. According to the place where the dominant wind direction, air may circulation phenomenon and air flow upward trend and the habit of the natural air flow channel of the plant to comprehensive speculated that when large leakage occurs, such as the natural gas in the plane spreading trend wind rose.
3. According to the proportion of leaking gas (air or shorter than air) and combined with the trend of air flow, finally determine the comprehensive three-dimensional flow trend of leakage flow chart.
4. According to your monitoring scope can be formed by the three-dimensional flow trend of gas leakage, can begin to flow in the downstream position of the initial instruction plan.
5. Analyze the situation on the study of the leak, the leakage points are leaking state micro leakage or spurting leaks.If is a micro leakage, it is the location of the instruction will be a little bit near the leak point.
If it is spurting slightly a little bit far away from the leak point, integrated these conditions, the finalization of design.
6. For a large gas leak of workshop, the relevant provisions of the proposal for each testing point set apart radius of 7.5 m.
Hope this news will help with you making a better plans.
You can also send email, I will give you a guidance. dianna@huafankj.com