Refrigerating fluid flow meter

The utility model discloses a refrigerant fluid flowmeter which comprises a circulating pipe, a heat insulation pipe, a flow detection meter and a thermometer, mounting discs are arranged at the two ends of the circulating pipe, a plurality of screw holes are formed in the mounting discs, rubber rings are arranged on the mounting discs, conical holes are formed in the two ends of the circulating pipe, and a straight hole is formed between the two conical holes. Equipment holes are formed in the upper ends of the straight hole and the conical hole, internal threads are arranged on the inner endfaces of the equipment holes, external threads are arranged at the outer ends of the heat insulation pipes, the heat insulation pipes are connected with the circulation pipes through the internal threads and the external threads, baffles are arranged at the two ends of each heat insulation pipe, and a heat preservation layer is arranged between the two baffles. External threads are arranged at the lower ends of the flow