Pressure boosting device and differential pressure transmitter

Abstract

The utility model discloses a kind of pressure leading device and differential pressure transmitter, wherein, pressure leading device includes cylinder, diaphragm and pressure leading pipe, diaphragm is installed to the outside of cylinder and is formed with airtight pressure sensing chamber between cylinder, pressure leading pipe is at least partially set in the inside of cylinder, one end of pressure leading pipe is communicated with pressure sensing chamber, the other end is used to connect pressure sensor, liquid inlet for introducing heat-conducting medium and liquid outlet for discharging heat-conducting medium are set on the cylinder.The utility model of pressure leading device and differential pressure transmitter can be filled with heat-conducting medium of certain temperature in the inside of cylinder by cylinder structure design, to preheat or precool pressure leading pipe and diaphragm, eliminate the influence of temperature change on silicon oil volume, simultaneously avoid medium condensation.

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