Gas drying system and method

A gas drying and drying technology, which is applied in the direction of separation methods, chemical instruments and methods, and other chemical processes, can solve the problems of easy retention, decreased drying efficiency of dryers, and waste of drying gas, etc., to achieve increased efficiency, convenient operation, easy to control effects
CN102205200AInactive Publication Date: 2011-10-05NAT INST OF METROLOGY CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NAT INST OF METROLOGY CHINA
Publication Date
2011-10-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a gas drying system which comprises a first dryer, a second dryer, electromagnetic valves, a check valve, time controllers, a needle valve and a pressure regulator, wherein the electromagnetic valves are respectively connected between lower ports of the two dryers and a moisture discharging outlet and between gas inlets of the two dryers and the moisture discharging outlet;the check valve is connected between upper ports and gas outlets of the two dryers; the time controllers are respectively used for controlling the electromagnetic valves to open and close; the needlevalve is connected between the two dryers to regulate ratio of drying gases required for regenerating absorbing agents in the two dryers; and the pressure regulator is connected to the gas outlet ends of the two dryers to regulate the flow of the drying gases. Meanwhile, the time controllers are used for controlling the electromagnetic valves to open and close and the working time of a heater according to the dew-point temperature of dried gases; and heating sleeves are respectively arranged outside the two heaters so as to utilize a part of drying gases output from the other dryer to regenerate the absorbing agent in the heated dryer. The invention has the advantages of simple structure and high desorption efficiency, and can be convenient for controlling output flow of the drying gases.
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Description

technical field

[0001] The invention relates to the technical field of gas drying, and more specifically, to a heating type gas automatic regeneration drying method and system. Background technique

[0002] In various automation industrial applications, compressed air is an air source with multiple uses. During the process of air compression, the water vapor contained in it is compressed together, resulting in a relatively high atmospheric dew point of the compressed air. Generally, the relative humidity in the atmosphere is as high as 65%, and the humid saturated air formed after compression and condensation will inevitably contain a large number of liquid water droplets, which are the root cause of corrosion of equipment, pipes and valves.

[0003] Excessive moisture in compressed air, whether in the liquid or vapor phase, can cause various problems for user operations, such as damage to items such as electrical components in containers, and damage to materials in pipeline...

Claims

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