# US 2014/0150718 A1 · Technology and device for uniform distribution of water film on solid collecting plate

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2014/0150718 A1
- Document ID: US20140150718A1
- Status: Published application
- Kind: A1
- Application number: 13/981,134
- Filed: 2012-12-18
- Published: 2014-06-05
- Earliest claimed: 2012-12-05
- Assignees: Shandong University; Qufu Shanda Energy and Environment Co., Ltd.
- Applicants: Shandong University; Qufu Shanda Energy and Environment Co., Ltd.
- Inventors: Chunyuan Ma; Jingcai Chang
- Web page: https://patentgrep.com/patent/US20140150718A1

## CPC

- B03C 3/34: Constructional details or accessories or operation thereof
- B03C 3/53: Liquid, or liquid-film, electrodes
- B03C 3/16: wet type
- B03C 3/47: flat, e.g. plates, discs, gratings
- B03C 3/78: by washing
- B01D 1/00: Evaporating ({evaporation in general, e.g. of liquids for gas phase reactions B01B1/005} ; removal of incrustation B08B; preparation of starch C08B30/00; sugar industry C13; prevention of incrustation C23F; drying solid materials or objects by evaporating liquids therefrom F26)
- B01D 24/00: Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof (B01D27/02 takes precedence)
- B01D 45/00: Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B03C: MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS (separating isotopes B01D59/00; combinations of magnetic or electrostatic separation with separation of solids by other means B03B, B07B)
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)

## Abstract

Disclosed is technology and device for uniform distribution of water film on solid collecting plate used on a wet electrostatic precipitator (ESP). The device includes clamping plate fastening bolts, suspended clamping plates, a water distribution pipe, guide vanes, collecting plate, a limiter, a two-way limited fixed axis and a double arming bolt. The surfaces of the solid collecting plate are subjected to coating pretreatment, the upper parts of the collector are connected with the water distribution pipe, and the 45° guide vanes are twisted; a corrugated diversion with the width of 5 to 8 mm is adopted; stainless steel pipes are crosswise welded, water distribution holes are formed at the water distribution pipe, the distribution pipe is connected with an external water tank, and the inlet quantity of the water is controlled by a PLC; the collectors are placed vertically, and the ESP contains a set of sharp discharge electrodes.

## Claims

### Claim 1

A device for uniform distribution of a water film on a solid collecting plate, consisting of clamping plate fastening bolts, suspended clamping plates, a water distribution pipe, guide vanes, collecting plate collector fastening bolts, collecting plates, a limiter at the bottom the collector, a two-way limited fixed axis and double arming bolts. Characterized in that the surfaces of the collecting plates are subjected to coating pretreatment by a hydrophilic agent; the 45° guide vanes are twisted on the upper parts of the collecting plates, a corrugated diversion with the width of 5 to 8 mm is rolled at the front ends of the collecting plates, stainless steel pipes are crosswise welded into a grid water distribution pipe network, and water distribution holes are sequentially and densely distributed on the lower parts of the stainless steel pipes; the upper parts of the collecting plates are connected with the water distribution pipe through suspended clamps, and the lower parts of the collecting plates are fixed on a collecting plate lower fixing beam; and an electrostatic field passage is formed by adopting the collecting plates with the same width.

### Claim 2

A technology for uniform distribution of a water film on a solid collecting plate, wherein the surface energy is improved after the surfaces of the collecting plates are subjected to coating pretreatment by a hydrophilic agent, and liquid can be spread on the surfaces of the collecting plates from different parts to quickly form a thin and uniform water film; water flows out of the water distribution pipe and enters the upper parts of the collecting plates through the 45° twisted guide vanes, thus completing primary uniform distribution of the flushing water; the liquid subjected to the primary uniform distribution enters the corrugated diversion at the front ends of the collecting plates from the front and the back of the upper parts of the collecting plates respectively, and the water is uniformly arranged on the upper parts of the collecting plates, thus completing secondary uniform distribution of the flushing water; the collecting plates are endowed with surface self-cleaning property through the surface coating pretreatment, and a dust layer is not firmly attached to the surfaces of the positives and is easily flushed away by the surface water film, thus achieving thorough dust removal; and a smoke flow is in concurrent contact with the water film to produce a friction force, so that the accumulated dust flushing force of the water film is enhanced.

### Claim 3 (depends on 1)

The device for uniform distribution of the water film on the solid collecting plate of claim 1, wherein the collecting plates are solid collecting plates subjected to surface coating pretreatment; 45° guide vanes are twisted on the upper parts of the collecting plates; a rolled corrugated diversion with the width of 5 to 8 mm is adopted at the front ends of the collecting plates; the upper parts of the collecting plates are connected with the water distribution pipe through six suspended clamps; the lower parts of the collecting plates are fixed on a collecting plate lower fixing beam; stainless steel pipes are crosswise welded into a grid water distribution pipe network; water distribution holes are densely distributed on the lower part of the water distribution pipe, the lower part of the water distribution pipe is connected with an external water tank, and the flow rate of the water distribution pipe is controlled by a PLC; an electrostatic field passage is formed by adopting the collecting plates with the same width; the upper and lower parts of those beams loaded a discharge electrode are suspended by insulated boxes and insulated from a shell; and dust hoppers are arranged at the lower parts of the collecting plates.