| 摘要 |
FIELD: chemical analysis of gas samples. SUBSTANCE: gas sampling facility in agreement with invention is additionally fitted with sealing enclosure having shape of truncated cone with thickened upper edge and thickened toroidal lower edge with cross-section displaying shape of circle or truncated trapezium. Upper edge of sealing enclosure leans against ring protrusion of puncher and is sealed on it with the help of conical washer, ring washer and nut put on puncher. Lower edge of sealing enclosure leans against cover of can over its perimeter and is sealed on it with the use of conical ring, shaped washer with T- shaped cross-section with protrusions entering space of conical ring and pressure nut with bearing internal butt. Threaded nut is joined to case of thermostat against which bottom can bottom rests. Internal bearing butt of pressure nut leans against upper face of shaped washer with protrusions. Free upper part of case of puncher is passed through axial hole in bond of punch and is made fast to it. Cylindrical edge of punch rests against ring washer beneath bond. Part of punch located above bond is cut away by two planes, parallel one another, and axis of punch at equal distances from it or by one plane. Upper edge of punch is fastened with use of jacket to axial hole by means of screw rest hinged to upper cross-piece frame and to jacket. Lower edge of thermostat leans against upper edge of lower cross-piece frame. Upper cross-piece of frame is hinged in horizontal plane to its rods with the aid of lock connection. EFFECT: raised precision of measurement of content of gas in examined environment. 2 dwg
|
