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US 5,613,843 AGranted
Package-type screw compressor
AssigneeHitachi, Ltd.
InventorsSeiji Tsuru, Shinichi Hirose, Junji Okita, Tadashi Kaneki, Katsuaki Kikuchi
Life of this patent
Estimating the term…
Abstract
Compressor bodies, an accelerator and a main motor are disposed on a base, while an innercooler, an aftercooler an oil cooler and a coolant cooler are disposed perpendicular to the axial direction of the motor so that the directions, in which the tube nests of the gas coolers are drawn out, are made to be the same. A control panel having a maintenance display is mounted on a front panel composed of panel portions which are mounted pivotally around respective remote or opposite side ends. Portions to be inspected daily are disposed near the front panel and one side panel adjacent thereto.
Claims17
A package-type screw compressor comprising:
- units including at least one compressor body, at least one gas cooler for cooling gas discharged from said compressor body, a coolant cooler for cooling a coolant for cooling a jacket of said compressor body, a suction duct for introducing non-compressed gas to a suction port of said compressor body, and a control panel for instructing operation conditions for said compressor body and as well as for indicating states of operation of said compressor body;
- and
- a box member including a box-like frame, and a plurality of panels having a front panel covering at least a part of a front surface of said frame and one side panel covering at least a part of a side surface adjacent to said front surface said box member substantially accommodating therein said units, wherein
- said front panel, to which said control panel is mounted, and said one side panel are made to be sides from which daily inspection is made by arrangement of adjacent to said front panel and said side panel, an oil level meter for indicating an oil level in an oil tank, for lubricating a bearing of said compressor body, an oil supply port for supplying said oil to said oil tank, an oil filter for filtering said oil to be supplied from said oil tank to said bearings of said compressor body and a drainage detection valve mounted to a branched pipe branched from a drainage discharge pipe for discharging drainage separated from the compressed gas cooled by said gas cooler.
1 more element
A package-type screw compressor comprising:
- units including a low-pressure-stage screw compressor body and a high-pressure-stage screw compressor body to be operated by an electric motor, an intercooler for cooling low-pressure of compressed gas discharged from said low-pressure-stage compressor body and sucked by said high-pressure-stage compressor body, an aftercooler for cooling high pressure of compressed gas discharged from said high-pressure-stage compressor body, a coolant cooler for cooling a coolant for cooling jackets of said low-pressure-stage and high-pressure-stage compressor bodies, an oil cooler for cooling oil for lubricating bearings of said compressor bodies, a suction duct for introducing non-compressed gas into a suction port of said low-pressure-stage compressor body, and a control panel for instructing operation conditions for said low-pressure-stage and high-pressure-stage compressors and as well as for indicating states of operations of said compressor bodies;
- and
- a box member including a box-like frame, and a plurality of panels having a front panel covering at lease a part of a front surface of said frame and one side panel covering at least a part of a side surface adjacent to said front surface, said box member substantially accommodating therein said units, wherein
- said low-pressure-stage and high-pressure-stage screw compressor bodies are so disposed that their screw axial lines extend parallel to said front panel,
- said intercooler and said aftercooler are disposed so that their longitudinal directions are substantially perpendicular to said axial line direction and said intercooler is disposed below said low-pressure-stage and high-pressure-stage compressor bodies and said aftercooler is disposed above said low-pressure-stage and high-pressure-stage compressor bodies,
- said oil cooler and said coolant cooler are disposed below said motor,
- said suction duct is disposed between said aftercooler and said one side panel,
- said control panel is disposed at a position of said front panel to oppose to said motor, and
- a drainage discharge port of a drainage discharge pipe for discharging drain separated from the compressed gas cooled by said intercooler and said aftercooler is disposed in said one side panel.
6 more elements
Dependencies are inferred from the claim text.