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A low energy consumption gas drying system and control method

A technology of gas drying and low energy consumption, which is applied in separation methods, chemical instruments and methods, and separation of dispersed particles. The effect of improving quality

Active Publication Date: 2020-08-11
云威能源科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 3) The regeneration process and the switching control of regeneration and adsorption are unreasonable, resulting in a large amount of waste of dry compressed air

Method used

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  • A low energy consumption gas drying system and control method

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Embodiment 1

[0052] This embodiment provides a low energy consumption gas drying system, such as figure 1 shown.

[0053] The humid compressed air is transported from a compressed air source such as an air compressor to the low-energy gas drying system of Embodiment 1 through a pipeline, and is connected through an air inlet pipeline 3 . After being processed by this system, the dried compressed air is discharged from the outlet pipeline 4 and connected to the air-consuming equipment.

[0054] Specifically, see figure 1 , The low-energy gas drying system of the present invention includes a first absorption vessel 1 and a second absorption vessel 2, and the first absorption vessel 1 and the second absorption vessel 2 are arranged in parallel. It can be understood that the first absorption vessel 1 and the second absorption vessel 2 can be absorption towers or absorption tanks. Both the first absorption container 1 and the second absorption container 2 are filled with absorbent, which is ...

Embodiment 2

[0083] This embodiment provides a control method using the low-energy gas drying system described in Embodiment 1, please refer to figure 1 , taking the first absorption vessel 1 on the left in the regeneration operation state and the second absorption vessel 2 on the right in the adsorption operation state as an example, the control method of the low energy consumption gas drying system of the present invention is described.

[0084] Described control method comprises the following steps:

[0085] S01. Introduce a part of moist compressed air into the absorption vessel in adsorption operation for adsorption drying, and at the same time, the other part is introduced as regeneration gas from one end of the absorption vessel in regeneration operation through the desorption airflow pipeline after being heated by a heater. The other end of the absorption vessel for regeneration operation is discharged;

[0086] Detecting the temperature value t1 of the regenerated exhaust gas thr...

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Abstract

The invention relates to a gas drying system with low energy consumption and a control method. The system comprises a first absorption container and a second absorption container that are used for performing an adsorption operation and a regeneration operation alternately, as well as a plurality of valves and a plurality of segments of compressed air pipelines that are connected between the firstabsorption container and the second absorption container. The system also comprises a first detection unit and a CPU (central processing unit), wherein the first detection unit is configured to detectthe temperature value t1 of regenerated tail gas emitted by the absorption containers in the regeneration operation and output a temperature signal of the temperature value t1; the CPU is configuredto receive the temperature signal of the temperature value t1, compare the temperature value t1 and a preset value T1 or a preset value T2 and output a control signal according to a comparison result.Absorbents in the regeneration absorption containers are activated and regenerated by utilizing parts of wet compressed air and dry compressed air, and a regeneration process and the switch of regeneration and absorption are controlled by a reasonable control method, so that the energy consumption is greatly lowered, and the regeneration efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of gas treatment, in particular to a low energy consumption gas drying system and a control method. Background technique [0002] Compressed air needs to be dried before use to remove moisture in the compressed air. Dryer is a common equipment used to dry compressed air, which usually includes two adsorption towers, one is in the adsorption state, the other is in the regeneration state, and the two adsorption towers alternately perform regeneration and adsorption processes. An adsorbent with adsorption function is installed in the adsorption tower. When the wet compressed air passes through the adsorption tower in the adsorption state, the adsorbent can absorb the water vapor in the wet compressed air, thereby outputting dry compressed air. [0003] According to different regeneration methods, compressed air adsorption dryers can be divided into heatless adsorption dryers that use the principle of pressure ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/26B01D53/04
Inventor 冯尹柴明炜
Owner 云威能源科技(上海)有限公司