| 摘要 |
Method and device for measurement of gas flow from subsurface resources to atmosphere trough sorption trapping given amount of gas at given time from unit of area by sorbents. Before implementation of measurements one evaluates probable range of intensity of gas flow and its component composition under specific structural-tectonic and landscape conditions with determination of set of needed types of sorbents and amount of those, at that each of sorbents in needed amount is placed to cartridges that are connected into sections and make it possible by sorption capacity to cover all the range of possible characteristics of gas flow. After that under field conditions at least in two points with expected extreme gas flows one carries out measurement of flows, that for one prepares mine working, places on day surface sections, connects by means of flexible hose and non-=permanent cone-gas collector and fitting with filter to place of measurement and atmosphere, after that one fills the cone and the hose with earth or rocks in sequence corresponding to natural position of underground or rock horizons of working, after implementation of measurement one separates hose from cone and leaves the cone at place of measurement, with tightening sections, one performs degassing and gas analysis of specific sorbents. By results of analysis one determines minimally needed and enough set of types of sorbents and number of cartridges with sorbents for complete registration of gas flow. |
