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Adblue liquid nanofiltration process and method thereof

A technology of urea and urea solution for vehicles, which is applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve the problem of low filtration precision of urea solution for vehicles, and achieve the effects of novel design, improved filtration precision and convenient use

Pending Publication Date: 2021-10-29
南京云畅环保科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a nanofiltration process and method for vehicle urea solution to solve the problem of low filtration accuracy of traditional vehicle urea solution

Method used

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  • Adblue liquid nanofiltration process and method thereof

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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0015] The present invention provides a kind of urea solution nanofiltration device for vehicles as shown in the figure, comprising a raw water tank 1 for storing tap water, one side of the raw water tank 1 is connected with a sand filter 2 through a raw water pump 25, the One side of the sand filter 2 is provided with a carbon filter 3, and one side of the carbon filter 3 is provided with a precision filter 4, and the top of the precision filter 4 is provided ...

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Abstract

The invention discloses an adblue liquid nanofiltration process and a method thereof. One side of a raw water tank is connected with a sand filter through a raw water pump, one side of a carbon filter is provided with a precision filter, one side of a first-stage RO device is provided with a first-stage water tank, one side of the first-stage water tank is connected with a second-stage RO device through a second-stage high-pressure pump, one side of an ultrapure water tank is connected with a batching water tank through an ultrapure water pump, one side of the batching water tank is provided with a urea elevator, the bottom of the batching water tank is connected with a second precision filter through an ultrafiltration booster pump, one side of the second precision filter is provided with a UF device, one side of the UF device is provided with a semi-finished product tank, and one side of the semi-finished product box is connected with an NF device through a nanofiltration pump. The adblue liquid ultrafiltration device is simple and reasonable, novel in design and convenient to use, the filtration precision of adblue liquid is greatly improved, particles, colloids, bacteria, heat sources and macromolecular organic substances in water can be effectively removed, and the quality of the adblue liquid is improved.

Description

technical field [0001] The invention belongs to the technical field of urea solution processing, and in particular relates to a urea solution nanofiltration process for vehicles and a method thereof. Background technique [0002] The urea solution for vehicles refers to the urea aqueous solution with a urea concentration of 32.5% and ultrapure water as a solvent, and the raw materials are special raw materials for urea for vehicles and ultrapure water. Urea for vehicles is an essential product for heavy-duty diesel vehicles to meet the National IV emission standards. It mainly plays the role of purifying exhaust gas in vehicles, and can react with nitrogen oxides in exhaust gas to reduce nitrogen oxide emissions. Specifically, the production of urea for vehicles mainly includes three stages: urea purification, water treatment, and solution preparation. The main process involved in the entire production process is purification, and the production barrier is not too high. How...

Claims

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Application Information

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IPC IPC(8): B01D36/00C02F9/06C02F103/04
CPCB01D36/00C02F9/00C02F2301/08C02F2103/04C02F1/001C02F1/441C02F1/42C02F1/4693
Inventor 吕建来余素云徐茂宝
Owner 南京云畅环保科技有限公司
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