Device of survey coal / shale surface gas absorption and desorption curve

The utility model discloses a device of survey coal / shale surface gas absorption and desorption curve, including super thermostated container, gas circuit system and monitoring system: the gas circuit system includes high pressure await measuring gas cylinder, vacuum pump, helium tank and adsorption tanks, monitoring system is including the entry end high accuracy of locating the adsorption tanks inlet end gaseous mass flow meter, system pressure sensor and locate adsorption tanks the give vent to anger temperature sensor and the gaseous mass flow meter of exit end high accuracy of end, and monitoring system is external to the computer, adsorption tanks and temperature sensor locate in the super thermostated container. The utility model provides a pair of device of survey coal / shale surface gas absorption and desorption curve has realized the automatic acquisition and the record of gas desorption data, has improved the accuracy of survey greatly to through the computer calculation, the accuracy has been improved. The dynamic procedure who reflects gas absorption / desorption that can be accurate.