Tandem type energy-saving carbon deoxidation device

Abstract

The invention discloses a tandem type energy-saving carbon deoxidation device which comprises a nitrogen inlet main pipe, a deaerator tower A and a deaerator tower B, wherein a first pipeline and a second pipeline are arranged between the deaerator tower A and the deaerator tower B; the deaerator tower A is communicated with a nitrogen inlet main pipe through a first nitrogen pipeline, and the deaerator tower B is communicated with the nitrogen inlet main pipe through a second nitrogen pipeline; a multi-stage circulating heat exchange pipeline group is arranged between the deaerator tower A and the deaerator tower B; a fifth stop valve and a sixth stop valve are arranged on the third communicating pipe, and a fourth pipeline communicated with the second pipeline is arranged between the fifth stop valve and the sixth stop valve; the second nitrogen pipeline is connected with a gas inlet and outlet pipeline. The deoxidizing agent has the characteristics that deoxidation is more thorough,and the oxygen content in nitrogen is more stable, the deoxidizing temperature of the deoxidizing agent is effectively reduced, energy is saved, and the potential safety hazard of high-temperature deoxidation is reduced.

Description

technical field [0001] The invention relates to the technical field of deoxidation devices, in particular to a series-connected energy-saving carbon deoxidation device. Background technique [0002] Nitrogen, with the chemical formula N2, is a colorless and odorless gas under normal conditions, and generally nitrogen is less dense than air. Nitrogen accounts for 78.08% (volume fraction) of the total atmosphere, and is one of the main components of air. At standard atmospheric pressure When nitrogen is cooled to -195.8°C, it becomes a colorless liquid, and when cooled to -209.8°C, liquid nitrogen becomes a snow-like solid. The chemical properties of nitrogen are inactive, and it is difficult to react with other substances at room temperature. Therefore, it is often used to make preservatives, but under high temperature and high energy conditions, it can undergo chemical changes with certain substances to produce new substances useful to humans. At present, a large amount of ...

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Problems solved by technology

At present, a large amount of oxygen will be contained in the process of nitrogen production, and in order to obtain high-purity nitrogen, it is necessary to deoxidize nitrogen. The existing carbon deoxidation device is two towers connected in parallel, one tower is used, and the other is standby. It can only be selected during commissioning. When using one tower or two towers, when the deoxidizer is used less than half, the oxygen concentration in nitrogen will be unstable, causing the user to stop using it and must stop to add deoxidizer

Thereby wasting a lot of time and gas, wasting manpower and energy

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