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Falling Film Evaporator

A technology of falling film evaporator and falling film evaporation, applied in vertical tube evaporator, evaporation, chemical instruments and methods, etc., can solve the problems of high cost of operation and removal

Inactive Publication Date: 2016-08-03
BERSTREETCARS CHEMANLAGEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] -Salt melts are generally dangerous compounds, whereby handling and disposal are associated with high costs

Method used

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Examples

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Embodiment Construction

[0054] At the outset, it should be pointed out that in the different described embodiments the same components are provided with the same reference numerals or the same component symbols, wherein the disclosure content contained in the entire description can be transferred according to the meaning to the figures with the same mark or the same component symbol on the same part. Likewise, the positional designations used in the description, such as top, bottom, side, etc., refer directly to the described and illustrated figures and can be transferred to the new position in the event of a position change.

[0055] The examples show possible embodiments of the falling film evaporator or parts thereof, wherein it should be noted here that the invention is not restricted to its specifically shown embodiment, but rather that the individual embodiments relate to each other. Different combinations are also possible and these variant possibilities are within the ability of those skilled...

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Abstract

The invention relates to a falling film evaporator (1) comprising at least one evaporator pipe (3), the inner wall of which is designed to conduct a liquid, which has been introduced into the evaporator pipe (1), in the form of a film, and comprising a device for heating the evaporator pipe. In order to be able to uniformly and reliably control the temperature, the device for heating the evaporator pipe comprises a heating apparatus (5) which is externally mounted on the evaporator pipe (3).

Description

technical field [0001] The invention relates to a falling film evaporator having at least one evaporator tube, the inner wall of which is provided for guiding a liquid introduced into the evaporator tube as a thin film and which evaporates The appliance has means for heating the evaporator tubes. Background technique [0002] Today caustic soda and potash solutions are maintained as 30%-33% aqueous solutions by electrolysis using ion exchange membranes. It is known that this solution is concentrated in a falling-film evaporator to an almost dehydrated substance in order to prepare it, if necessary, for further processing in a drum into flakes or metal pellets or pellets. However, it is rather difficult to ensure a sufficient service life for devices of this type, especially when the device comprises a plurality of falling-film elements bonded together in a bundle. Falling film evaporators of this type have a too low heat transfer and therefore require a higher heat transfe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D1/00B01D1/06
CPCB01D1/0017B01D1/065
Inventor A·戈特P·特里博莱特
Owner BERSTREETCARS CHEMANLAGEN
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