A Difficult-to-Scale Reboiler for Alcohol Production

Abstract

The invention relates to the field of alcohol production equipment, in particular to a hard-to-scale reboiler for alcohol production, comprising an air inlet area, a reboiler area, a gasket, a heating tube group and a transmission device, and the air inlet area includes an inlet Gas hood, mounting plate, partition plate, inlet pipe and liquid outlet pipe; the reboiler zone includes a reboiler hood, a gasification outlet pipe and a liquid outlet pipe; the heating pipe group includes a first pipe group and a liquid outlet pipe. The second pipe group, the first pipe group includes the No. 1 pipe, the No. 2 pipe and the first pipe cover; the second pipe group includes the No. 3 pipe, the No. 4 pipe and the second pipe cover; the The transmission device includes a main shaft and a rotating motor. The heating tube group of the present invention is not easy to form fouling, effectively avoids corrosion to the wall of the heating tube of the reboiler, and does not damage the inner wall of the heating tube.

Description

technical field [0001] The invention relates to the field of alcohol production equipment, in particular to a difficult-to-scaling reboiler for alcohol production. Background technique [0002] A reboiler (also called a reboiler), as its name implies, vaporizes a liquid again. Its structure is similar to that of a condenser, but one is used to cool down, while the reboiler is used to heat up and vaporize. [0003] The reboiler is often used in conjunction with the fractionation tower: the reboiler is a special heat exchanger capable of exchanging heat and having a vaporization space. The material level in the reboiler is at the same level as the fractionation column level. The liquid phase is supplied from the bottom line into the reboiler. Typically 25-30% of the liquid phase is vaporized in the reboiler. The vaporized two-phase stream is sent back to the fractionation column, where the vapor phase components return to the column and pass upward through the trays, while...

AI Technical Summary

Problems solved by technology

[0005] However, after the reboiler is used for a long time, material scale will accumulate in the heating tube. When the scale layer becomes thicker and thicker, the production efficiency will decrease, and even cause production shutdown accidents. In the prior art, the dirt treatment for the heating tube mainly includes the following Two ways:

[0006] 1. Use a chemical descaling agent for descaling. The defect of this method is the possibility of corroding the heating tube;

[0007] 2. Use high-pressure water jet to descale the heating tube. The defect of this method is the possibility of damaging the inner wall of the heating tube.

[0008] At the same time, the above-mentioned fouling treatment methods all need to shut down the reboiler, which affects the working efficiency of the reboiler

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