Gas Sampler and Gas leakage Detection Device having the Same

摘要

According to the present invention, disclosed is a gas sampler and a gas leakage detection device. The gas sampler comprises: a plurality of air collecting pipes which are extended to a sensing position for sensing whether a gas to be sensed is leaked or not, and collect air; a plurality of air inlet pipes which have one end connected to the air collecting pipes and receive air from the air collecting pipes; an inflow flow meter which is combined with the air inlet pipes and controls the flow rate of air flowing in the air inlet pipes; a main pipe which is connected to the air inlet pipes and through which air supplied from the air inlet pipe flows; a main flow meter which is combined with the main pipe and controls the flow rate of air flowing through the main pipe; a vacuum pump which is connected to the main pipe and provides suction force required to collect air in the air collecting pipes; an air supply pipe whose one end is connected to the air inlet pipes and supplies air to a gas measuring module; a bypass pipe including a branched bypass pipe which is formed in a number corresponding to the number of air inlet pipes and has one end connected to the air supply pipe, and an integrated bypass pipe which has one end connected to the branched bypass pipe and the other end connected to the vacuum pump; and a bypass flow meter which is coupled to the integrated bypass pipe and controls the flow rate of air flowing in the integrated bypass pipe.