Novel heat exchange stirring shaft and tubular reactor

Abstract

The invention discloses a novel heat exchange stirring shaft, and belongs to the field of chemical reaction devices. The novel heat exchange stirring shaft comprises a main shaft, wherein a first chamber and a second chamber which are isolated from each other are formed in the main shaft; an opening is formed in each of the first and second chambers at one end of the main shaft; a first connecting pipe communicated with the first chamber is arranged on the main shaft; a second connecting pipe communicated with the second chamber is arranged on the main shaft; at least one spiral pipe for communication is arranged between the first and second connecting pipes. According to the novel heat exchange stirring shaft, a heat exchange medium is introduced into an inner communicated pipeline area to implement heat exchange in a reactor; by a structure formed by spirally winding the main shaft with the spiral pipe, a function of stirring a reaction raw material is realized, and meanwhile, the reaction raw material is driven to be delivered to one end of the axial direction of the main shaft; a heat exchange pipeline can be in contact with the reaction raw material more fully by the rotary movement of stirring columns, so that the heat exchange efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of chemical reaction devices, in particular to a novel heat-exchangeable stirring shaft and a tubular reactor. Background technique [0002] Chemical reactions usually generate a lot of heat, so the reactor is often equipped with a heat exchange device. The heat exchange device with a mechanical stirrer structure can improve the heat exchange and stirring capacity of the reactor. For example, adding a scraper to the ribbon stirrer In order to improve the heat transfer coefficient of the jacket, however, this method makes the structure of the reactor and the stirrer complex, and at a certain stirring speed, the stirring power increased by the scraper will be converted into stirring heat, which increases the heat transfer load. [0003] The heat exchange device structure of the existing mechanical stirrer has high energy consumption and poor heat exchange effect, and the existing mechanical stirrer can only play the rol...

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Problems solved by technology

[0002] Chemical reactions usually generate a lot of heat, so the reactor is often equipped with a heat exchange device. The heat exchange device with a mechanical stirrer structure can improve the heat exchange and stirring capacity of the reactor. For example, adding a scraper to the ribbon stirrer In order to improve the heat transfer coefficient of the jacket, however, this method makes the structure of the reactor and the stirrer complex, and at a certain stirring speed, the stirring power increased by the scraper will be converted into stirring heat, which increases the heat transfer load

[0003] The heat exchange device structure of the existing mechanical stirrer has high energy consumption and poor heat exchange effect, and the existing mechanical stirrer can only play the role of stirring and heat exchange. When the chemical reaction is carried out in the tubular reactor, The reactant raw material needs to enter from one end of the tubular reactor, and after the chemical reaction in the tube, it is output from the other end of the tubular reactor, which requires that the mechanical stirrer in the tubular reactor not only needs stirring and heat exchange It also needs to have the function of transporting the reactant raw material from one end of the tubular reactor to the other end

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