Zero-loss internal recycle type gas purifying method and device

A technology of gas purification and internal circulation, which is applied to chemical instruments and methods, separation methods, and separation of dispersed particles. It can solve the problems of short switching time, high gas consumption, and large regeneration gas consumption. The effect of simple method

Inactive Publication Date: 2010-06-16
杭州博大净化设备有限公司
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Problems solved by technology

However, in the conventional control method of compressed air dryers commonly used at present, the regeneration of adsorbents in the process mostly uses part of the product gas for regeneration. For example, the switching time of the heatless regenerative a...

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings: the zero-loss internal circulation gas purification method of the present invention mainly uses the high-temperature gas regeneration adsorption drying tower discharged from the compressor or heated by the low-temperature gas. In one cycle, one of the adsorption towers A is used as a drying tower, and the other adsorption tower B is used as a regeneration tower, and after one cycle is over, the next cycle is repeated after switching, and the cycle is carried out. The method includes the following two stages:

[0016] The first stage is the drying-heating regeneration stage. The high-temperature gas enters the regeneration tower——B tower to heat the adsorbent, then enters a post-installed water cooler to lower the temperature, and then flows into a post-installed oil-water separator to separate the exchange gas. After carrying a small amount of liquid, the gas enters the...

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Abstract

The invention relates to zero-loss internal recycle type gas purifying method and device, which use regeneration adsorbing drying towers for high temperature gas discharged by a compressor or obtained by heating the low temperature gas. In a period, one tower is taken as a drying tower while the other one is used as a regeneration tower. The method comprises the following two stages: the first stage is drying-heating regeneration stage: the high temperature gas enters the regeneration tower, then enters a post-positioned water cooler to lower the temperature, then flows to a post-positioned oil-water separator and enters the drying tower to be dried; and the second stage is drying-cold blowing regeneration stage: after the first stage is finished, a PLC controller sends a command; the direction of the high temperature gas is changed under control of a valve, and the high temperature gas firstly flows to a pre-positioned water cooler and a pre-positioned oil-water separator; partial cooled gas still enters the regeneration tower for cold blowing while the rest is mixed with the gas entering the regeneration tower for cold blowing through the valve, and the mixture enters the post-positioned water cooler and the post-positioned oil-water separator for deep cooling, then enters the drying tower to be absorbed to produce dried gas. The invention has the advantages of simple and reliable method, convenient use, energy saving and the like.

Description

technical field [0001] The invention relates to a gas purification method and device, in particular to a gas purification method and device using a regenerative adsorption dryer. Background technique [0002] With the rapid development of purification technology and the widespread application of adsorption dryers, the comprehensive energy consumption per unit production of product gas has become an important parameter to evaluate the performance of finished products. While ensuring the quality of product gas is stable, minimizing equipment energy consumption has become a major goal of purification. The direction of technology development and the pursuit of goals. From the principles of purification technology and practical experience, the main factors affecting the performance of finished products and unit energy consumption are the dynamic adsorption capacity of the adsorbent, regeneration efficiency, equipment structure and pipeline design, and equipment load. The dynamic...

Claims

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Application Information

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IPC IPC(8): B01D53/26B01D53/04
Inventor 彭正惠
Owner 杭州博大净化设备有限公司
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