Oil is prevented from being pumped back in the reservoir through the auxiliary pump by a check valve. During normal operation, oil is drawn from the reservoir by the main oil pump. The auxiliary oil pump is signaled to switch off and remains off during normal operation. During startup, the mechanically driven main oil pump comes up to speed and takes over the function of providing oil flow and pressure. Before startup, the electrically driven auxiliary oil pump is started to provide lubrication to the bearings and gearing, and to obtain a permissive start signal. No interruption can be permitted in the lube oil supply. Unlike some other types of rotating equipment, high speed, integrally geared compressors cannot operate, even for very brief periods, without adequate lubrication. Lubrication The lubrication system provides a constant supply of cooled and filtered oil to the compressor bearings and gear sprays. If higher pressure is required for the process, the gas goes through an intercooler where heat is removed from the gas before continuing to the next stage(s) of compression, until the necessary process conditions are achieved.įigure 1 – A typical three stage compressor A scroll or volute casing surrounds the diffuser, providing a smooth exit path with minimal pressure loss. The non-rotating diffuser surrounds the impeller, reducing the velocity of the gas, causing the gas’s pressure and temperature to increase. As the high velocity gas leaves the impeller, it enters the small space of the diffuser. Gas enters each stage axially, where the high speed rotating impellers greatly increase the velocity of the gas, through the principle of centrifugal force. Depending on the customer’s requirements, a compressor package may have multiple processes on the same gearbox, or even multiple interconnected gearboxes. A typical compressor gearbox can have one to three high speed output shafts as well as a total of one to six impellers, or stages of compression. The centrifugal compressor consists of a low speed increasing gear (bullgear) which rotates high speed output shafts (pinions) and mounted impellers. Principles of Operation Compressor Cameron’s centrifugal line of multi-stage gear (MSG) compressors utilize dynamic compression to generate the necessary pressure and flow requirements of air, nitrogen, or a specific process gas. This document does not incorporate all operating scenarios, and any questions regarding the compressor operation should be directed to Cameron. NOTE: The intent of this specification is to provide general operating guidelines for centrifugal compressors, surge line control theory, and routine startup and shutdown procedures. 8 Special Requirements for Elevated Inlet Pressures. Table of Contents: Principles of Operation. At the end I need to automate the parameters of the Gate/Expander which takes even longer than automating the Volume.Engineering Specification AAIL-2861 Revision 01: January 20, 2010Ĭompressor Operation (IL-2861) of 13 Also I tried different kind of expanders and Noise gates, but they just don't seem to work for me, or I am to unskilled to program them. I tried the Waves DeBreath at a friend of mine which just did not work as I wanted it too.
Remove noise from cla 2a compressor manual#
Thats why I use manual volume envelopes (6-9dB before compression seems to work best) to reduce the breathes, but it is to time consuming for a lot of low budget productions. I read the other Q&A regarding the same question but it could not answer my problem since they told to use a noise gate, which does not work for my setup. I am extremely happy with this chain, but I have one big problem. Usually I use a plug-in chain of Vocal Rider (2dB slow mode), CLA-2A (Opto-Compressor), SSL Channel (to compress the transients the Opto couldn't catch and removing some ugly mids around 800 Hz), Fabfilter-DS (DeEsser) and a very short convolution reverb if the mix needs a wet Dialogue. I use a TLM 103 amped by a SPL Channel One mk2 Premium (which I use for some 3-6 dB compression, gentle DeEssing, Highcut (50Hz) and Air-band boosting by 2-3 dB (14kHz) ). I really love my Voice-over/ADR sound now.
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