High-efficiency devolatilization tower internal component

Abstract

The invention discloses a high-efficiency devolatilization tower internal component. The internal component comprises a conical top cap, conical tower plates and support pieces; the top of the first conical tower plate is provided with the conical top cap, the bottom of the first conical tower plate is connected with the top of the second conical tower plate through an overflow weir and provided with an annular grid plate with the first support piece, the bottom of the second conical tower plate is provided with a ring of second support piece, the bottom of the second support piece is connected with the third conical tower plate, the bottom of the third conical tower plate is provided with a ring of third support piece, and the cross section of the top of the third conical tower plate is higher than that of the bottom of the first conical tower plate. The internal component is simple in structure, compared with traditional horizontal devolatilizers such as disc-shaped devolatilizer andcage-type devolatilizers, a vertical multi-layer falling film devolatilization reactor has the advantages that the internal flow resistance is low, no dead zone exists, the film formation performanceis good, and the surface renewal rate is high; the flux is large, and the staying time is uniform and controllable; the anti-interference capability is high, and the flexible production needs are met; no external power is needed, and the energy consumption is saved.

Description

technical field [0001] The invention relates to an internal component, in particular to an internal component of a high-efficiency devolatilization tower. Background technique [0002] Devolatilization is an important link in chemical production, and its task is to transfer volatile substances from liquid phase to gas phase. The main ways to improve the devolatilization efficiency include: 1. Increase the temperature of the devolatilization system; 2. Reduce the partial pressure of volatile components in the gas phase; 3. Increase the gas-liquid interface; 4. Update the interface in time. The temperature of the devolatilization system is subject to the permitting of the process conditions. Reducing the partial pressure of the gas phase of the volatile components can be achieved by using an inert gas as a carrier or controlling the operating pressure of the devolatilizer. Increasing the gas-liquid interface and interface renewal mainly depends on the devolatilizer. structure...

AI Technical Summary

Problems solved by technology

In-tube falling film or flowing liquid column (drop) type devolatilizer can provide a considerable gas-liquid interface, but the interface is basically not updated, and the residence time is uncontrollable, which may affect the devolatilization effect due to insufficient time

The horizontal devolatilizer equipped with single-shaft or double-shaft multi-disc (network) stirring can effectively update the interface to a certain extent and can adjust the liquid level to control the residence time, but the structure is too complicated, and the manufacturing and operating costs are high.

In order to ensure the film formation rate, there must be sufficient liquid layer depth at the bottom of this type of devolatilizer, and the static pressure head of the liquid layer has a negative impact on the devolatilization effect

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