HIGH-PRESSURE GAS SAMPLER Russian patent published in 2002 - IPC

FIELD: drawing samples for analysis of content of solid suspended mechanical particles in continuous flows of compressed gases. SUBSTANCE: device is provided with probe coaxially arranged inside gas duct, sample drawing tube connected with probe and provided with shut-off valve and throttle valve made in form of combination nozzle. Nozzle consists of inlet, confuser, cylindrical and outlet diffuser parts connected in succession. Proposed sampler is provided with vertical sectional conical chamber whose upper part changes to diffuser part of combination nozzle. Proposed sampler is also provided with branch pipe located in conical chamber for axial motion, sample analyzer and additional chamber connected with conical chamber. Additional chamber is made in form of cylinder with cut in its side surface; this cut is closed with cover. Sampler has gas duct with collecting section combining two branches. First branch is connected with truncated cone and second branch is connected with outlet branch pipe of sample analyzer. Sampler is provided with fan with electric motor located before shut-off valve and vertically mounted gas duct which is brought out of room into safe zone. EFFECT: enhanced reliability and safety in drawing samples from high-pressure lines located in rooms.