Novel reboiler capable of efficiently exchanging heat and removing foam

Abstract

The invention relates to a novel reboiler capable of efficiently exchanging heat and removing foam, which belongs to the technical field of chemical equipment and comprises a gas-liquid separator, a shell pass shell, a tube pass tube bundle and a baffle plate which are arranged in the shell pass shell, and a rich liquor inlet and a barren liquor outlet which are arranged at the bottom end of the shell pass shell. The tube pass tube bundle is in a U shape in the shell pass shell in an overlooking mode, a gas phase area is arranged above the tube pass tube bundle and located in the upper area inthe shell pass shell, baffle plates are linearly arranged on the tube pass tube bundle, the baffle plates are in a single-arch notch vertical shape, the gas-liquid separator is located outside the shell pass shell, and the bottom end of the gas-liquid separator is connected with the top end of the shell pass shell through a plurality of gas rising pipe sets. Compared with the prior art, the novelreboiler integrates gas generation through heat exchange and foam removal, the heat exchange efficiency is improved, the heat exchange area is reduced, liquid foam carried in the gas can be efficiently removed, and the purity of the gas is improved.

Description

technical field [0001] The invention belongs to the technical field of chemical equipment, and in particular relates to a novel reboiler with high-efficiency heat exchange and defoaming. Background technique [0002] At present, the reboiler basically adopts the structure of the tank type reboiler, such as figure 1 and figure 2 As shown, there is a wire mesh demister at the gas outlet on the upper part of the kettle body. In the kettle-type reboiler, the inner diameter of the kettle body section is larger than the inner diameter of the rest of the cylinder. The outer diameter of the baffles of the tube bundle cannot be made to match the inner diameter of the kettle body due to the requirements of assembly and the overall extraction and maintenance of the tube bundle in the later stage, resulting in a large gap between the baffles and the inner wall of the kettle, resulting in the liquid in the shell side When flowing in the shell, it "leaks" from the gap between the baffl...

AI Technical Summary

Problems solved by technology

The outer diameter of the baffle plate of the tube bundle cannot be made to match the inner diameter of the kettle body due to the requirements of assembly and the overall extraction and maintenance of the tube bundle in the later stage, resulting in a large gap between the baffle plate and the inner wall of the kettle body, resulting in the liquid in the shell side When flowing in the shell, it "leaks" from the gap between the baffle plate and the inner wall of the kettle, such as figure 2 The b position reduces the heat transfer coefficient on the shell side of the heat exchanger, thereby reducing the heat transfer efficiency; in addition, the wire mesh demister installed at the gas outlet on the upper part of the kettle body, such as figure 1 The a position of position, because it is set internally, so the area of ​​the screen cannot be set too large, and the size of the screen surface is small. Foam will increase, reducing the effect of defoaming in the later stage

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