Compressor module for compressing gas and compressor equipped therewith

a compressor module and compressor technology, applied in the direction of positive displacement liquid engines, piston pumps, liquid fuel engines, etc., can solve the problems of high maintenance costs of such compressor modules, difficult to apply useful ventilation air that removes the heat of compression, and high pipe and connection costs. achieve the effect of convenient operation

Active Publication Date: 2020-07-07
ATLAS COPCO AIRPOWER NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is a compressor module that has excellent cooling capabilities, making it easy to create a functional compressor. The module is designed in a modular way, allowing multiple compressor stages to be assembled in series, resulting in a more efficient and effective compressor.

Problems solved by technology

These pipes and connections are not only expensive, but are also subject to defects and leaks that can lead to higher maintenance costs of such compressor modules.
A disadvantage of air cooling is that the ventilation air that removes the heat of compression is difficult to apply usefully.
It is also difficult to cool to a low temperature with air cooling because to realise a small temperature difference, also called delta T, between the ventilation air temperature and the medium to be cooled, very large coolers are required that are very expensive.
For example, in practice with direct or indirect air cooling, for example by means of an oil circuit with radiator, a compressor element generally remains relatively hot at its operating speed, which is to the detriment of the compression efficiency.
An additional disadvantage is that air cooling decreases over time as radiators accumulate dust and other dirt.
For this reason radiators are generally overdimensioned to always be assured of sufficient cooling capacity, and radiators must be regularly cleaned, which means extra cost.
A disadvantage is that a large number of external pipes and connections are needed to guide the water and the oil around and that in this case too these pipes and connections drive up the cost price of the compressor, and also bring about an extra risk of defects and leaks.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0061]The compressor module 1 shown in FIGS. 1 and 2 is composed of a compressor element 2 with an input 3 for gas to be compressed and an output 4 for the compressed gas; an electric motor 5; in this case a gearbox 6 between the compressor element 2 and the motor 5 with gears 7 for the transmission of the motor torque to the compressor element 2; an oil sump 8 with oil for lubricating and cooling the bearings 9 of the motor 5 and the compressor element 2 and of the gears 7; and a gas cooler 10 for cooling the compressed gas originating from the compressor element 2, whereby this gas cooler 10 is connected via a pipe 11, shown schematically, to the output 4 of the compressor element 2.

[0062]In this case the gas cooler 10 comprises a tube 12 that forms the primary section 13 of the gas cooler 10 through which the compressed gas originating from the compressor element 2 can be guided via a gas inlet 14 to a gas outlet 15, to which a network of users of compressed gas can be connected,...

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PUM

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Abstract

A compressor module for compressing gas composed of a compressor element with a housing with integrated compressor element cooler; a motor and a gas cooler for cooling the compressed gas originating from the compressor element. The gas cooler includes a primary section through which the gas to be cooled can be guided and a secondary section that is in heat-exchanging contact with the primary section. A first cooling circuit can guide a coolant through the secondary section of the gas cooler or through a section thereof and a second cooling circuit can guide a coolant through the compressor element cooler. The first cooling circuit and the second cooling circuit are joined together in series or in parallel and are guided to a common output.

Description

[0001]The present invention relates to a compressor module and a compressor equipped therewith.BACKGROUND OF THE INVENTION[0002]Compressor modules are already known that consist of a compressor element; a motor for driving the compressor element; if applicable a gearbox between the compressor element and the motor; a gas cooler for cooling the compressed gas and a separate closed oil circuit with an oil sump, an oil cooler and an oil pump to drive the oil from the oil sump through the compressor module, via the oil cooler and an oil filter, for lubricating the bearings and if applicable the gears.[0003]Generally the various components are assembled in the housing of a compressor, whereby the compressed gas is cooled by coolers through which a liquid coolant such as water is driven, or the compressed gas is cooled in radiators by means of fans that make the surrounding air flow through the housing for the cooling of these radiators.[0004]The coolers and radiators are connected by mea...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): F04D29/58F04B53/08F04B39/06F04C29/04H02K7/14H02K9/19H02K7/116H02K5/20F04D29/063F04B35/01
CPCH02K5/20F04D29/5833F04B53/08H02K9/19H02K7/14F04D29/063F04B39/06F04D29/5806F04C29/04H02K7/116F04B35/01H02K5/203
Inventor MEEUSEN, WIMDE BONTRIDDER, THOMAS
Owner ATLAS COPCO AIRPOWER NV
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