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MVR (mechanical vapor recompression) fractionation system

A technology of mechanical steam and fractionation system, applied in the field of fractionation system, can solve the problems of unsatisfactory energy saving effect, achieve obvious energy saving effect, small investment, and improve fractionation efficiency

Active Publication Date: 2014-11-26
CHONGQING JIANGJIN SHIPBUILDING IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the technical problem in the prior art that the mechanical vapor recompression technology is used in the fractionation system, the energy-saving effect is not ideal. The purpose of the present invention is to provide an energy-saving fractionation system using the mechanical vapor recompression technology. After the vapor-liquid separator realizes the separation of vapor and liquid, the separated vapor is compressed by a vapor compressor and then passed into the fractionation tower

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Embodiment Construction

[0019] The preferred embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] Such as figure 1 As shown, the mechanical vapor recompression fractionation system of the present invention includes a boiler 1, a liquid storage tank I4, a fractionation tower 10 and an evaporator 7 connected by pipelines and related pumps, and the liquid outlet of the boiler 1 is connected with the feed pump sequentially through pipelines. 2. The heat exchanger 3, the liquid storage tank I4, the circulation pump 5 and the inlet end of the heat exchange tube bundle I6 of the fractionation tower 10 are connected, and the outlet end of the heat exchange tube bundle I6 is connected to the inlet end of the heat exchange tube bundle II21 in the evaporator 7 . In this embodiment, the heat exchanger 3 is preferably a plate heat exchanger.

[0021] Such as figure 1 As shown, a mechanical vapor recompression system is provided b...

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Abstract

The invention discloses an MVR (mechanical vapor recompression) fractionation system comprising a boiler, a liquid storage tank I, a fractionating tower and an evaporator, which are connected through pipelines and a related pump, wherein an MVR system is arranged between the evaporator and the fractionating tower. The MVR fractionation system fully utilizes the heat of vapor at the outlet of the evaporator and transfers the heat to a liquid to be heated, and the liquid exchanges heat with the vapor and serves as a cooling liquid to fractionate the vapor. The MVR fractionation system is simple in structure, small in investment and obvious in energy-saving effect.

Description

technical field [0001] The invention relates to a fractionation system, in particular to a mechanical vapor recompression fractionation system for the fractionation of multi-component volatile substances with similar boiling points in a solution. Background technique [0002] Most of the traditional fractionation systems use high-temperature and high-pressure steam as the heat source. Because the latent heat of steam is difficult to recover and utilize, it leads to the disadvantages of high energy consumption and a large amount of cooling water required. Fractionation enterprises pay huge operating costs for this every year. MVR is the abbreviation of mechanical vapor recompression technology (mechanical vapor recompression), which is an energy-saving technology that reuses the energy of the secondary steam generated by itself, thereby reducing the demand for external energy. In recent years, some people have tried to apply mechanical vapor recompression technology to the fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D3/14B01D3/32
Inventor 邓清李伟华刘红丹
Owner CHONGQING JIANGJIN SHIPBUILDING IND