Machine that can change sampling system pressure automatically carries sampling system

The utility model provides a machine that can change sampling system pressure automatically carries sampling system, carry sampling head, computer, sampling header pipe, pump and pressure gauge including the machine, the machine carries the sampling head and includes T type pipe, wherein, both sides transverse pipe orifice and radial orificial tip are open structure in the T type pipe, the orificial internal diameter in one side is less than the orificial internal diameter of opposite side among the transverse pipe orifice, is in simultaneously the opposite side pipe is intraoral to be equipped with protrudingly near radial nozzle position, the radial mouth of pipe, sampling header pipe and the pump of machine year sampling head are consecutive, the pressure gauge sets up on sampling header pipe, the computer links to each other respectively with pump and pressure gauge. Use the utility model discloses a machine carries the sampling head, can prevent effectively that the steam that vapor condenses from gathei