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Method for drying a compressed gas

A compressed gas and drying technology, which is used in the drying field of compressed gas and compressed gas in dryers, can solve the problems of high dew point pressure, prolonged heating steps, and the heating power is not optimally utilized, and achieves improved reliability and regeneration time. The effect of minimizing and reducing the number of dryers

Inactive Publication Date: 2013-04-24
ATLAS COPCO AIRPOWER NV
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Problems solved by technology

[0004] A disadvantage of the known drying methods for compressed gas is that, depending on the operating state of the dryer and compressor installation, the dew point pressure of the dried compressed gas at the outlet of the dryer can be relatively high
This results in a suboptimal use of the available heating power and the heating step has to be somewhat extended, so more desiccant has to be supplied, with the result that it takes longer to regenerate the large amount of desiccant

Method used

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  • Method for drying a compressed gas
  • Method for drying a compressed gas

Examples

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Embodiment Construction

[0035] figure 1 Shown is a compressor device 1, which essentially comprises: a compressor 2 with an inlet 3 and an outlet 4; a compressed air line 5, which connects the outlet 4 of the compressor 2 to a user network 6; and a dryer 7, which combines In the above-mentioned compressed air pipeline 5.

[0036] In this example, the compressor 2 comprises a low-pressure section 8 and a high-pressure section 9 connected in series via a pressure line 10 in which an intercooler 11 and a water separator 12 are incorporated in succession.

[0037] The dryer 7 comprises: a first pressure vessel 13 with an inlet 14 and an outlet 15 containing silica gel or any other desiccant; a second pressure vessel 16 with an inlet 17 and an outlet 18 also containing a desiccant.

[0038] In addition, the drying machine 7 is provided with a distribution device 19, and the distribution device 19 includes three pipelines, which are respectively the first pipeline 20, the second pipeline 21 and the third ...

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Abstract

Method for drying compressed gas using a dryer with pressure vessels. The method having the steps of guiding a first part of the gas to a cooler via a regulating valve, and of subsequently drying this first part of the gas in the drying pressure vessel; and of heating a second part of the gas so as to regenerate the regenerating pressure vessel. When the temperature in the regenerating pressure vessel rises above an upper limit value, the regulating valve will be gradually moved in the direction of the shut position and, when the temperature in the regenerating pressure vessel drops under a predetermined bottom limit, the regulating valve will be gradually moved in the direction of the entirely open position, which adjustment allows to set the compressed gas at a desired temperature.

Description

technical field [0001] The present invention relates to a method of drying compressed gas, in particular compressed gas from a compressor installation. [0002] In particular, the present invention relates to a method of drying compressed gas with a dryer having at least two pressure vessels filled with a desiccant or desiccant, the pressure vessels working alternately so that one pressure vessel is busy drying When the gas is compressed, another pressure vessel will be regenerated. Background technique [0003] This drying method is known, whereby to dry the compressed gas coming from the compressor plant, a part of the gas is cooled in a cooling machine before being conveyed through the drying pressure vessel and thus in order to regenerate another pressure vessel, The uncooled portion of the gas is directed through the regeneration pressure vessel to absorb the moisture absorbed by the drying means by means of the heat of compression retained in this portion of the gas t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/26
CPCB01D2259/402B01D53/0454B01D53/0462B01D2259/4009B01D2259/40003B01D2259/40009B01D53/261
Inventor F·G·M·休伯兰德W·马斯E·尼乌文赫伊兹T·塞森斯
Owner ATLAS COPCO AIRPOWER NV
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