Pressure-stabilizing protective system for nylon 66 saline solution storage tank

Abstract

The invention belongs to the technical field of nylon 66 salts, and particularly relates to a pressure-stabilizing protective system for a nylon 66 saline solution storage tank. The pressure-stabilizing protective system for an aqueous solution storage tank comprises a first pressure-stabilizing tank and a second pressure-stabilizing tank, which are connected to water supplementing pipelines, wherein a gas supplementing pipeline is inserted into the first pressure-stabilizing tank; the top of the first pressure-stabilizing tank is provided with a first pressure-stabilizing pipeline; the lowerpart of the first pressure-stabilizing tank is provided with a first overflow pipeline; a second pressure-stabilizing pipeline is inserted into the second pressure-stabilizing tank; the tail end of the first pressure-stabilizing pipeline is positioned on the second pressure-stabilizing pipeline; and the lower part of the second pressure-stabilizing tank is provided with a second overflow pipeline.The first pressure-stabilizing tank and the second pressure-stabilizing tank are arranged, so that stabilizing for nitrogen sealing pressure of the nylon 66 saline solution storage tank is realized,and consumption of nitrogen gas is reduced.

Description

technical field [0001] The invention belongs to the technical field of nylon 66 salt, and in particular relates to a voltage stabilizing protection system for a nylon 66 salt solution storage tank. Background technique [0002] With the enhancement of people's awareness of energy saving and environmental protection, people pay more and more attention to energy consumption in chemical production. How to save energy and produce qualified chemical products is an urgent problem to be solved. Nylon 66 salt is the monomer of synthetic nylon chain cloth. It is odorless, non-corrosive, and slightly ammonia-like white or slightly yellow gem-like monoclinic crystals at room temperature. At room temperature, nylon 66 salt in dry or solution is relatively stable, but when the temperature is higher than 200 ° C, polymerization will occur. [0003] At present, nylon 66 salt mainly has two production processes: aqueous solution method and solvent crystallization method. In the aqueous so...

AI Technical Summary

Problems solved by technology

At present, the decompressed nitrogen is usually used to directly enter the storage tank, and then discharged from the exhaust port of the storage tank. The slight positive pressure in the tank is always maintained, and the state of nitrogen discharge is large. The nitrogen consumption is large, and the pressure fluctuation in the tank is relatively large. Big

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