湿式电除尘器

湿式电除尘技术（WESP）

Wet the electric technology (WESP)

 

1. 概述

1. An overview of the

湿式电除尘器技术（WESP）是一种先进的烟气治理技术，通常设置在湿法脱硫装置后，拥有捕集烟气中雾滴和微小尘粒的强大能力，为实现趋零排放，全面解决烟尘、PM2.5、石膏雨、S03、汞、多种重金属、二恶英及多环芳烃（Pa H S ）等多种污染物问题，将为我国治理雾霾做出贡献。

Wet electrostatic precipitator technologies (WESP) is an advanced gas treatment technology, usually installed in the wet desulphurization device, have capture droplets in flue gas and the powerful ability to tiny dust particles, in order to realize zero emission, smoke, rain PM2.5, gypsum, S03 comprehensive solution, mercury, a variety of heavy metals, dioxins, and polycyclic aromatic hydrocarbons (Pa H S) and other pollutants, will contribute to our country governance haze.

 

2. 工作原理

2. The working principle of

靠高压电晕放电使得粉尘荷电，荷电后的粉尘在电场力的作用下到达集尘板，但是在对集尘板上捕集到的粉尘清灰方式上有较大的区别，它采用冲刷液冲洗电极，在极板上形成连续的液膜，使粉尘随着冲刷液的流动而清除。烟气中的灰尘颗粒通过高压电磁场时与电 极间的正负离子与电子碰撞而产生的荷电，带上电子和离子的尘粒在电场力的作用下向异性电极运动并积附在异性电极上，通过振打等方式使电极上的灰尘落入收集 灰斗中，使它通过电除尘器的烟气得到净化，从而达到除尘效果。

By high voltage corona discharge makes the dust charged and dust charged after arrive in dust collecting plate under the action of electric field force, but on the dust collection plate capture to the way of dust removal by a larger difference between the two, it USES flush fluid flush electrodes, form continuous liquid film on the plate, make the dust as the flushing fluid flow and clear. Dust particles in flue gas by high voltage electrical interelectrode electromagnetic field with the positive and negative ions and electrons collide and charged, with electrons and ions of dust particles under the action of electric field force, anisotropic electrode movement and attached to the opposite sex electrode, through shaking of the electrode on the dust falls to the collected ash hopper, make it through electric precipitator flue gas purification, so as to achieve the dust removal effect.

 

湿式电除尘器由壳体、电场区流场分布装置、清洗排污系统、绝缘热风系统、电气及控制系统等组成。

Wet electrostatic precipitator by shell, electric intensity of flow field distribution device, cleaning sewage systems, insulating air system, electrical and control system, etc.

 

电场区：主要包括收尘极（阳极管束）、放电极（阴极线）；

Electricity area, mainly including dust collecting pole (anode tube bundle), discharge electrode (cathode);

 

流场分布装置：主要包括均流装置和导流装置；

Flow field distribution device: mainly includes the flow guide device and guiding device

 

清洗排污系统：主要包括供水系统、喷水系统及管路收集含尘污水管道排至脱硫地坑。

Cleaning sewerage system: mainly includes the water supply system, hydraulic system and pipe to collect dust sewage pipeline row to pit for desulphurization.

 

热风系统：采用蒸汽换热形式为绝缘箱及阴极固定器提供热风吹扫；

Hot air system: in the form of steam heat insulation box and cathode holder provide hot air purge;

 

电气及控制系统：主要包括电除尘器高压供电装置和低压控制装置；

Electrical and control system: including electrical precipitator high voltage power supply device and low voltage control device;

 

除尘器工作机理如下：

Filter working principle is as follows:

 

收尘效率不受粉尘特性影响，不受灰成分、比电阻影响。水雾滴导电、荷电性强，有利于除尘。趋近速度高，设备选型小。

Dust collecting efficiency is not affected by dust characteristics, is not affected by ash composition, specific resistance. Water droplets are conductive, charged strong sex, be helpful for dust removal. Higher approach speed, small equipment selection.  

3. 布置形式灵活

3. Layout flexibility

 

☆流场分布技术先进；

Flow field distribution being advanced technology

 

☆耐腐蚀复合材料密度小，设备重量小；

Corrosion resistant composite material density is small, weight of equipment;

 

☆结构紧凑；布置灵活，具有多种布置形式

Being is compact structure; Decorate a flexible, has many decorate a form

 

 

4. 技术特点与创新：

4. Technical characteristics and innovation:

 

a. 综合治理，趋零排放。可高效去除粉尘、石膏雨、S03气溶胶、重金属等各类污染物。

A. comprehensive treatment, and zero emissions. Can be efficient removal of dust, rain, gypsum, S03 aerosol, heavy metals and other pollutants.

 

b. 立式设计，结构紧凑，布置灵活。

B. the vertical design, compact structure, flexible layout.

 

c. 收尘极采用玻璃钢材质，耐腐蚀，使用寿命长。

C. dust collecting pole using glass fiber reinforced plastic material, corrosion resistance, long service life

 

d. 收尘极采用蜂窝状设计，有效收尘面积大。

D. dust collecting pole adopts honeycomb design, large dust collecting area effectively.

 

e. 喷淋系统结构简单，无需连续喷水，运行耗水量低。

E. spray system structure is simple, without continuous water, running water consumption is low.

 

f. 先进的恒流高压电源及科学合理的自动控制系统，设备运行稳定可靠。

F. advanced constant current high voltage power supply and automatic control system for scientific and rational, stable and reliable equipment operation.

 

g. 降低综合投资和运行费用，具有较好经济性。

G. lower comprehensive investment and operating cost, has a good economy.

 

h. 采用立式方型结构，REP材质的收尘极板

H. adopts vertical square structure, REP material dust collecting plate

 

i. 改进阴极线的挂接方式和结构，解决了高气速下极线摆动问题，有效防止电晕极对极板频繁放电，减少火化率。

I. improving the structure of cathode rays articulated way and solve the problem of the polar oscillation under high gas velocity, effectively prevent corona polar plate frequent discharge, reduce HuoHuaLv.

 

j. 改进原电控设备，采用适应湿式除尘器高火化率的恒流高压供电装置。

J. to improve the original electric control equipment, adapt to high wet precipitator HuoHuaLv constant current high voltage power supply device.

 

k. 电场采用蜂窝状结构，在同样的空间内有效增加收尘面积

K. honeycomb structure is used in the electric field in the same space effectively increase the dust collection area

 

l. 增加喷水装置，防止收尘极结垢及电晕极肥大。

L. increased water spray device, to prevent dust collecting extremely scale and corona hypertrophy