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Emerson has introduced the Fisher WhisperTube Modal Attenuator for noisy gasoline or vapour functions, which provides noise discount in compressible fluid service for improved worker security, with no influence on course of circulate.
เกจปรับแรงดันแก๊ส is a full-bore gadget providing 15-decibel sound suppression to scale back noise inside pipes produced by sources upstream, corresponding to control valves or other gadgets. – Image: Emerson
The modal attenuator from Emerson is a full-bore device offering 15-decibel sound suppression to reduce noise inside pipes produced by sources upstream, similar to management valves or other units. เพรสเชอร์เกจไฮดรอลิค is put in downstream of those devices instead of a pipe spool piece, it generates no further stress drop, and has no impression on process move.
Until now, all solutions have generated vital strain drop, decreased flow, and/or launched obstructions. This has led some customers to install acoustic insulation to pipe sections to reduce back noise, but this can be expensive and cumbersome to put in, and it does nothing to cut back inner piping noise. The modal attenuator addresses these and other issues with a drop-in solution, enhancing employee security and regulatory compliance, while reducing the danger of injury to downstream gear due to high noise levels inside to piping.
Leading applications for the modal attenuator include these the place upstream process flows are modified by management valves, stress aid valves, pumps, compressors and different gadgets that generate noise. Many of these gadgets should be put in in lengths of piping with no move restrictions downstream, and the modal attenuator works nicely in these purposes because it introduces no such restrictions.
In addition, the modal attenuator does not introduce an obstruction into the piping, so it may be utilized in functions the place particulates are suspended in course of flows, and/or where pigging is required for cleansing and maintenance.
WhisperTube gadgets are provided in sizes from 2–12 in, with American Society of Mechanical Engineer (ASME) flange ratings of Class a hundred and fifty, 300 and 600. Pressure rankings match the flange ranking sizes, and the maximum temperature is 700°F (371° C).
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