Preparation system of car urea

A preparation system and technology of urea for vehicles, which is applied in the field of urea preparation for new diesel engines, can solve problems such as polluting catalysts, and achieve high filtration flux, strong physical adsorption capacity, and low flow resistance

Active Publication Date: 2014-07-23
NANJING JIHONG ENVIRONMENTAL PROTECTION TECH
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  • Abstract
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Problems solved by technology

At the same time, low-quality diesel exhaust treatment fluid will pollute the catalyst in the SCR catalytic reaction tank, causing serious consequences

Method used

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  • Preparation system of car urea

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Embodiment Construction

[0024] Below in conjunction with the accompanying drawings and specific embodiments, the present invention will be further clarified. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. Modifications of equivalent forms all fall within the scope defined by the appended claims of this application.

[0025] like figure 1 As shown in the figure, a preparation system of urea for vehicles comprises: a raw water tank (1), a raw water pump (2), a sand and gravel filter system (3), an activated carbon filter system (4), an ion exchange system connected in sequence through pipelines Softening device (5), pressurizing pump (6), microfiltration device (7), ultrafiltration device (8), intermediate water tank (9), high pressure pump (10), primary reverse osmosis device (11), secondary Reverse osmosis device (12), EDI system (13), urea water bucket (14), material storage tank (15), primary fi...

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Abstract

The invention discloses a preparation system of car urea. The preparation system comprises a raw water tank (1), a raw water pump (2), a gravel filter system (3), an active carbon filter system (4), an ion exchange softening device (5), a pressurizing pump (6), a micro filter device (7), an ultra-filtration device (8), a middle water tank (9), a high pressure pump (10), a primary reverse osmosis device (11), a secondary reverse osmosis device (12), an EDI (electronic data interchange) system (13), an urea water barrel (14), a material storage tank (15), a primary filter system (16), a homogenization system (17), a discoloring system (18), a purifying system (19) and a filling device (20) which are connected in sequence by a pipeline. The system is reasonable in structural design, wide in range of application, good in equipment mating performance, high in automation degree, high in operability, small in floor area, capable of removing various ions in water, capable of reaching a salt removing rate of over 99.5%, stable in operation and high in utilization rate.

Description

technical field [0001] The invention relates to the field of diesel exhaust aftertreatment systems, in particular to a novel urea preparation device for diesel engines. Background technique [0002] With the increasing number of automobiles in our country, automobile exhaust emissions have become an important source of pollution. Since the environmental protection departments of various countries have proposed to further reduce the nitrogen oxide pollutants emitted by diesel engines. Commonly known as Euro IV standard in China. Urea for vehicles is a consumable used to treat the exhaust of heavy-duty diesel vehicles. Through a specific system, the nitrogen oxides in the exhaust gas are reduced to harmless substances, so as to achieve the purpose of reducing nitrogen oxide emissions. Selective catalytic reduction (SCR) is currently recognized as one of the most effective post-treatment technologies for reducing NOx emissions from diesel engines. Urea SCR sprays a certain a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/94B01D53/56
Inventor 吕建来余素耘肖飞
Owner NANJING JIHONG ENVIRONMENTAL PROTECTION TECH
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