Ultrapure water preparing system and adblue solution preparing system

A preparation system and ultra-pure water technology, which is applied to the preparation of urea derivatives, water treatment parameter control, and the preparation of organic compounds. The effect of small area and convenient discharge process

Inactive Publication Date: 2016-07-06
ZHUHAI GREE INTELLIGENT EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this ultra-pure water production equipment has at least the following technical problems: the equipment has a long process, occupies a large area, requires multiple professionals to operate and maintain, and needs to use dangerous chemicals

Method used

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  • Ultrapure water preparing system and adblue solution preparing system
  • Ultrapure water preparing system and adblue solution preparing system
  • Ultrapure water preparing system and adblue solution preparing system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] This embodiment provides an ultrapure water preparation system, which is mainly used in the production of urea solution for vehicles to prepare the ultrapure water required for the production of urea solution for vehicles. Specifically, the ultrapure water preparation system in this embodiment includes a pretreatment device, a reverse osmosis treatment device, and a polishing resin treatment device that are sequentially connected through pipelines.

[0056] Among them, the pretreatment device includes a filter component, which is used for preliminary filtration of the raw water to remove particles, residual chlorine, colloids and microorganisms in the raw water, and to protect the subsequent reverse osmosis treatment device.

[0057] The reverse osmosis treatment device is used for reverse osmosis treatment of the primary filtered water. Wherein, the reverse osmosis treatment device includes a reverse osmosis treatment unit (such as figure 2 The shown ultrapure water ...

Embodiment 2

[0061] Preferably, this embodiment provides an ultrapure water preparation system, compared with the previous embodiment, such as figure 1 , figure 2 and image 3 As shown, the lower end of the polishing resin filter 31 in the polishing resin treatment device of this embodiment is connected to the water outlet pipeline of the reverse osmosis treatment device. The upper end of the polished resin filter is connected with an ultrapure water outlet pipeline. By setting in this way, the time for ion exchange between the reverse osmosis treated water and the polishing resin can be increased. Specifically, the water after the reverse osmosis treatment enters the polishing resin treatment filter 31 from the lower end of the polishing resin filter, and as the liquid level in the polishing resin filter 31 continues to rise, the water after the reverse osmosis treatment is fully mixed with the polishing resin Ion exchange is carried out, and the ultrapure water finally obtained enter...

Embodiment 3

[0069] Preferably, this embodiment provides an ultrapure water preparation system. Compared with the previous embodiment, the filter assembly of the pretreatment device in this embodiment includes a pre-filter, a filter element filter (a wire-wound filter element filter can be selected) One or more of filter or melt-blown PP cotton filter) and adsorption filter (granular activated carbon filter or carbon rod filter can be selected). Specifically, the filter assembly of the pretreatment device can increase or decrease the filter according to the local water quality.

[0070] Preferably, if figure 1 , figure 2 and Figure 4 As shown, the filter assembly in the pretreatment device in this embodiment can be configured as follows: a pre-filter 111 connected in sequence by pipelines, a wire-wound filter element filter 112 (the wire-wound filter element filter here can be melt-blown PP Cotton filter core filter replaces), granular activated carbon filter 113 (the granular activat...

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Abstract

The invention relates to an ultrapure water preparation system and a vehicle urea solution preparation system, and relates to the technical field of ultrapure water preparation. An ultrapure water preparation system includes a pretreatment device, a reverse osmosis treatment device and a polishing resin treatment device connected in sequence. The pretreatment device includes a filter assembly. The reverse osmosis treatment device includes a reverse osmosis treatment unit or a plurality of reverse osmosis treatment units arranged in series and parallel; each reverse osmosis treatment unit includes a RO reverse osmosis membrane element or a plurality of RO reverse osmosis membrane elements. The polishing resin treatment device includes a polishing resin filter, a product water monitoring unit and an ultrapure water collection unit connected in sequence through pipelines. A vehicle urea solution preparation system includes the above-mentioned ultrapure water preparation system. The invention is mainly used to realize the miniaturization and automation of the ultrapure water preparation system, and stabilize the quality of the prepared ultrapure water.

Description

technical field [0001] The invention relates to the technical field of ultrapure water preparation, in particular to an ultrapure water preparation system and a vehicle urea solution preparation system. Background technique [0002] Urea for vehicles refers to an aqueous urea solution with a urea concentration of 32.5% and ultrapure water as a solvent, and its raw materials are urea granules and ultrapure water. Among them, urea for vehicles is used as a catalytic reducing agent when treating the exhaust of diesel vehicles such as heavy trucks and buses, so that the exhaust of vehicles can meet the standard emission. [0003] At present, the urea solution for vehicles is mainly produced by chemical plants, and its core equipment is the ultrapure water production equipment used to dissolve urea particles. However, the ultrapure water production equipment has at least the following technical problems: the equipment has a long process, occupies a large area, requires multiple ...

Claims

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Application Information

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IPC IPC(8): C02F9/06C07C273/02B01D53/94B01D53/78
CPCC02F9/00B01D53/78B01D53/94B01D2251/2067C02F1/001C02F1/281C02F1/283C02F1/441C02F1/444C02F1/4691C02F2103/04C02F2209/03C02F2209/05C02F2209/40C02F2209/42C02F2301/04C02F2301/08C07C273/02
Inventor 张量杨勇曾威张秀峰龚轲吕剑明翟新春
Owner ZHUHAI GREE INTELLIGENT EQUIP CO LTD
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