Accurate online dilution system and dilution method thereof

Abstract

,The invention discloses an accurate online dilution system and a dilution method thereof, the lower part of a concentrated mother liquor tank is connected with the inlet end of a pipeline mixer through a first pipeline, the outlet end of the pipeline mixer is respectively connected with a third pipeline and a fourth pipeline, the other end of the third pipeline is connected with the top of the concentrated mother liquor tank, and the other end of the fourth pipeline is connected with a reaction kettle, the lower portion of the solvent tank is connected with the inlet end of the pipeline mixer through a second pipeline, a second pump and a plurality of valves are installed on the first pipeline, valves are installed on the third pipeline and the fourth pipeline, and a third instrument set is installed at the joint of the third pipeline and the fourth pipeline and the outlet end of the pipeline mixer. In the whole automatic dilution process, a user only needs to provide target temperature, target concentration and target flow, the concentration of mother liquor does not need to be detected, the concentration of the diluted solution does not need to be detected, it can be guaranteed that the concentration value and the flow after dilution are within the target range of the user, and the whole process is automatically completed by the system and does not need manual control.

Description

technical field

[0001] The invention relates to the technical field of chemical production, in particular to an accurate on-line dilution system and a dilution method thereof. Background technique

[0002] In the field of chemical production, this situation is often encountered: before the raw material solution enters the reactor, a certain concentration range needs to be controlled, so that the chemical reaction in the reactor is affected by the concentration of the raw material solution and is consistent in each batch. , thereby improving the stability of product performance.

[0003] At present, in the field of chemical manufacturing, such as attached figure 1 As shown, the traditional solution dilution method is: first detect the concentration of the mother solution, the concentration can be all forms of concentration required by the user, such as mass ratio concentration, volume ratio concentration or mass volume ratio concentration, and then according to the concentra...

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