Tuning fork densimeter

The utility model provides a tuning fork densimeter, includes the densimeter body, include with densimeter body sealing connection's three -way pipe, the three -way pipe include with the densimeter passes through the first pipeline that flange seal connects, first pipeline includes interior conduit and outer pipeline, outer pipeline includes air inlet and gas outlet, a refrigerator is connected tothe air inlet, and the setting through interior conduit and outer pipeline forms the cavity intermediate layer in first pipeline to be connected with a refrigerator on the cavity intermediate layer,carry the cavity in to the cavity intermediate layer through the air inlet, thereby play refrigeration effect, with the temperature that reduces liquid, thereby improve accuracy and the detection range that detects. 种音叉密度计，包括密度计本体，包括与密度计本体密封连接的三通管，所述三通管包括与所述密度计通过法兰盘密封连接的第管道，所述第管道包括内管道和外管道，所述外管道包括进气口和出气口，所述进气口连接制冷机，通过内管道和外管道的设置在第管道内形成中空夹层，并且中空夹层上连接有制冷机，通过进气口对中空夹层中输送空腔，从而起到制冷效果，以降低液体的温度，从而提高检测的准确性与检测范围。