Equipment compressors

Cracks detection in the compressor equipment and power facilities, assemblies, pipes, separators, metalworks, heating installations and refrigerating plants. 

It is sometimes desirable to have a compressor equipped with both constant-speed and automatic-start-and-stop control. When this is done, a switch allows immediate selection of either type. 

This cost should be accounted as part of the direct material and labor cost of the compressor equipment module. 

Out-of-limit temperatures for rotating mechanical components and systems are usually based on values established by the manufacturers. Pump and compressor equipment that could benefit from an infrared thermography inspection program include motor gears, bearings, shafts, couplings, V—belts, pulleys, compressors, vacuum pumps, and clutches. 

Rated frequency 90 cps at 5400 min-1 Total weight 701 Weight of rotor 9.31 Compressor - Natural gas depletion compressor, Output pressure 65.5 bar Motor and compressor equipped with active magnetic bearings. 

The compressors at Saint-Maur operate at constant speed with an output of 700 kg. per hour and an energy consumption of about 20 kw. Experiments have been made with a single compressor equipped with a variable-speed drive to vary the air flow. The lower curves in Figure 6 show the reduction in ozone output lit decreased air flow, power input remaining constant at 35 kw. 

The gas-pipeline construction costs in 1983 showed a 1.05% increase for the composite gas pipeline cost index. Even though some of the materials (pipes, valves, and fittings, etc.) were discounted, some other costs such as labor, construction machinery and equipment increased and hence the total pipeline construction cost index showed an increase. Bigger pipelines (10—36 in.) contributed to most of the gas transportation in the United States. A comparison of costs of construction for land and offshore pipelines indicated that the offshore construction is three times as expensive as onshore projects. An annual cost index (Al) of 200 was published for the year 1983 for pipeline installation and an AI of 203 for compressor equipment and drive units in the compressor stations. The high pressure gas pipeline cost index in 1983 was the same as the previous year. 

Sel iiion of Compressor Equipment, Compressors for such gas processes as liquid-air separation, hydrogenation, and desulfurization must be non-lubricated to avoid possible explosive reaction with lubricating oils. Graphite rings are used in reciprocating compressors, and labyrinth or... 

Special movable or stationary compressor equipment must be used to insure the injection of oxidizer into this bed under a certain pressure and at a rate required not only to start-up the in situ... 

The air to be separated passes a filter and is then fed to a compressor equipped with intercoolers and separators to raise it to pressures between 50 and 200 bar. In a first heat exchanger, the air is cooled down to little more than the water freezing point and then fed to alternating adsorbers, one of which adsorbs water, carbon dioxide and such trace elements as acetylene and hydrocarbons while the other is regenerated with dry warm gas. The clean air is then led to the cryogenic section in which some of it is cooled by flashing it to approximately 6 bar in an expansion engine. Before it enters the bottom of the pressure column, it... 

For variable air-demand systems, replace single-stage rotary screw compressors equipped with inlet-valve modulation control (or other control types [load/no-load, turn valve, etc.] not efficiently following load variations) with variable-frequency drive or reluctance-motor-drive air compressors. 

What does suitable mean with regard to compressors equipped with in-line air-purifying beds and filters ... 

Is it required for an employer to monitor for the presence of carbon monoxide if an oil-lubricated compressor equipped with a high temperature alarm or automatic shutoff device is being used ... 

The booster and primary compressors are alternative multistage compressors, equipped with interstage coolers. The number of stages of both compression steps depends on ethylene supply pressure at battery limits as well as on the high-pressure recyde conditions. 

Valve Actuation Gas—This test method permits the use of any type of valve switching or valve actuation. When pneumatic vtdves are used, air of any grade that will result in no water condensation or will not introduce oil or other contaminates in the switching valves may be used. Air from a piston operated compressor equipped with a water and oil separator has been found suitable. Column switching valves that do not require air to operate do not have this air requirement. 

Are compressors equipped with pressure rehef valves, and pressure gauges ... 

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