Unlock instant, AI-driven research and patent intelligence for your innovation.

Water self-evaporating and humidifying flue gas device, dry electrostatic precipitator and working method thereof

An evaporator and wet flue gas technology, applied in the field of flue gas purification, can solve the problems of short service life, easy generation of back corona, low capture efficiency of fine particles, etc., and achieve the effect of improving service life.

Active Publication Date: 2019-04-09
SHANDONG UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a water self-evaporating and humidifying flue gas device for conventional dry electrostatic precipitators, which have low capture efficiency for fine particulate matter (PM2.5), are prone to back corona phenomenon, and have short service life. Device, dry electrostatic precipitator and method of operation thereof

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Water self-evaporating and humidifying flue gas device, dry electrostatic precipitator and working method thereof
  • Water self-evaporating and humidifying flue gas device, dry electrostatic precipitator and working method thereof
  • Water self-evaporating and humidifying flue gas device, dry electrostatic precipitator and working method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The present invention provides a water self-evaporating and humidifying flue gas device, comprising a water self-evaporator 4 and a water supply device (II) for supplying water to the water self-evaporator, wherein:

[0031] The self-water evaporator 4 is composed of a casing 9, a water inlet pipe 17, and a temperature-resistant, corrosion-resistant hydrophilic porous filler 10; The water inlet pipe 17 is uniformly provided with water distribution holes along the pipe diameter, and the temperature-resistant and corrosion-resistant hydrophilic porous filler 10 is placed around the water inlet pipe 17;

[0032] The water supply device (II) includes an upper header 8 and a supplementary water pump 6, and the supplementary water pump 6 is connected with the upper header 8;

[0033] Water from the evaporator 4 is connected with the upper header 8 through the water inlet pipe 17; the bottom of the water inlet pipe 17 is a water inlet, and the top is a water outlet;

[0034] ...

Embodiment 2

[0039] The invention provides a dry electrostatic precipitator, which includes an electrostatic precipitator body. The electrostatic precipitator body includes a smoke inlet 1, a dust plate 2, a prickly corona wire 3, an electrostatic precipitator high-voltage power supply 5, and a uniform distribution of smoke Device 14 and precipitator inlet 15, wherein many groups of dust plates 2 and prickly corona wire 3 form a multi-level electrostatic field, each electrostatic field bottom is provided with ash hopper (11-13), also includes embodiment 1 described Water self-evaporation humidification flue gas device.

[0040] The water self-evaporating and humidifying flue gas device is placed between the adjacent dust plates 2 in the final electrostatic field.

Embodiment 3

[0042] The working method of dry electrostatic precipitator, including:

[0043] Step 1: Use the replenishment pump 6 to pump water to the upper header 8, the water in the upper header 8 automatically enters the water self-evaporator 4 through the water inlet under the action of gravity, and the water passes through the water distribution on the water inlet pipe 17 Pores infiltrate into capillary channels to form water reservoirs;

[0044] Step: 2: The flue gas discharged from the boiler reaches the final electrostatic field equipped with water self-evaporator 4, and heat and moisture exchange is carried out under the action of temperature difference and humidity difference. Some evaporation holes 4-1 carry out molecular diffusion;

[0045] Step 3: After the flue gas is humidified and tempered, the resistance of dust with high specific resistance is reduced, and the ion density in the electrostatic field space is increased to achieve efficient removal of fine particles.

[0...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a water self-evaporating and humidifying flue gas device, a dry electrostatic precipitator and a working method thereof, belonging to the field of flue gas purification. The water self-evaporating and humidifying flue gas device includes a water self-evaporator and a water supply device for supplying water to the water self-evaporator, wherein: the water self-evaporator is composed of a casing, a water inlet pipe and a temperature-resistant and corrosion-resistant Composed of hydrophilic porous filler; the shell is uniformly provided with evaporation holes, the water inlet pipe is placed inside the water self-evaporator, and the water inlet pipe is uniformly provided with water distribution holes along the diameter of the pipe. The temperature-resistant and corrosion-resistant The hydrophilic porous filler is placed around the water inlet pipe; the water supply device includes an upper header and a water replenishment pump, and the water replenishment pump is connected to the upper header; the water is connected to the upper header through the water inlet pipe from the evaporator box connected. The invention can automatically control the evaporation amount of the evaporator, and realize the purpose of efficiently removing fine dust particles (PM2.5).

Description

technical field [0001] The invention relates to the field of flue gas purification, in particular to a water self-evaporation humidifying flue gas device, a dry electrostatic dust collector and a working method thereof. Background technique [0002] Soot-type pollution has existed for a long time as the main pollution type in my country, especially fine particulate matter (PM 2.5 ) pollution problem is particularly prominent. Fine particulate matter (PM) in an electrostatic field 2.5 ) charging mechanism is under the joint action of the two charging mechanisms, it is difficult to reach the saturation charge inside the dry electrostatic precipitator, resulting in the low efficiency of the conventional dry electrostatic precipitator for fine particles; when the dust particles The specific resistance exceeds 5×10 10 Ω·cm, the charging and discharging performance of this kind of dust is extremely poor, and the electrostatic precipitator is prone to produce back corona phenome...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B03C3/014B03C3/04
CPCB03C3/014B03C3/04
Inventor 常景彩马春元王翔
Owner SHANDONG UNIV