Ice chest provided with distillation equipment

Abstract

The invention relates to an ice chest provided with distillation equipment, which mainly comprises an ice chest body. A distillation tower and two crude argon towers are arranged in the ice chest body; the upper tower of the distillation tower is divided into an upper section and a lower section by taking an argon fraction extraction opening as a boundary; as the secondary tower of the upper tower of the lower section, a first crude argon tower is arranged in the upper tower of the lower section, is connected with the upper tower of the lower section into a tower body, and is arranged in the ice chest body together with a lower main cold heat exchanger and a lower tower in the manner of landing; the upper tower of the upper section and a second crude argon tower are respectively arranged in the ice chest body in the manner of landing; the lower part of the upper tower of the upper section is communicated with the upper tower of the lower section through a low-temperature pump by usinga descending liquid pipeline; the upper tower of the lower section is communicated with the upper tower of the upper section through a rising gas pipeline; the second crude argon tower is communicated with the first crude argon tower through the low-temperature pump by using the descending liquid pipeline; and the first crude argon tower is communicated with the second crude argon tower through the rising gas pipeline. The ice chest provided with the distillation equipment has the characteristics of energy saving, consumption reduction, high safety and stability, good economic performance, reasonability and the like.

Description

technical field [0001] The invention relates to a cold box arranged with rectification equipment, and belongs to the technical field of energy-based air separation cold box. Background technique [0002] With the large-scale development of my country's industry, the demand for oxygen, argon and nitrogen in various industries has increased sharply, and the amount of gas and liquid used has also increased, which has driven the development of large-scale and super-large distillation towers. The increase in the height of the rectifying tower will put forward higher requirements for the verticality and flatness of the cold box during the manufacturing process, as well as the strength, rigidity, and stability during use. On the premise of the safety of the box steel structure, a lot of work has been done on the material selection, structural scheme, and construction measures of the cold box, which not only consumes a lot of manpower and material resources, but also increases the p...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a method that can not only solve the problem of increasing the height of the cold box caused by the increase in the height of the rectifying tower, but also reduce the layout of the pipelines in the cold box and simplify the system. Process arrangement Cold box with rectification equipment

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