CN202823155U

CN202823155U - Single-main-pipe type spray pipe for wet-method fume washing system

Info

Publication number: CN202823155U
Application number: CN 201220524765
Authority: CN
Inventors: 吴迪; 严召; 崔宝财; 孙园; 万长欢
Original assignee: BEIJING LIDEHENG ENVIRONMENTAL PROTECTION ENGINEERING CO LTD
Current assignee: BEIJING LIDEHENG ENVIRONMENTAL PROTECTION ENGINEERING CO LTD
Priority date: 2012-10-12
Filing date: 2012-10-12
Publication date: 2013-03-27
Anticipated expiration: 2022-10-12

Abstract

The utility model relates to a single-main-pipe type spray pipe for a wet-method fume washing system and belongs to the field of fume purifying equipment. The spray pipe comprises a main pipe, a plurality of branch pipes, a plurality of nozzle connection short pipes, and a plurality of atomizing nozzles. The main pipe is fixed inside a washing tower by a support beam and an end bracket; the plurality of branch pipes are symmetrically arranged at two sides of the main pipe and are communicated with the main pipe; the plurality of nozzle connection short pipes are arranged at two sides of each branch pipe and are communicated with the corresponding branch pipe; and the atomizing nozzles are arranged at the ends of the nozzle connection short pipes. The single-main-pipe type spray pipe is convenient to install, a bracket structure is not washed out by slurry, the damage to the body of the washing tower is minimum and the operation life of equipment is long.

Description

A kind of single main pipe type shower for the wet flue gas washing system

Technical field

The utility model relates to a kind of single main pipe type shower for the wet flue gas washing system, belongs to the flue gas purifying equipment field.

Background technology

Contain the sour gas such as harmful its main component sulfur dioxide of gas, nitrogen oxide in the flue gas of coal-burning boiler and sintering machine of steel mill discharging atmospheric environment has been caused serious pollution, so coal-burning boiler or sintering device flue gas to carry out the processing such as desulphurization and denitration before discharging.Present coal-burning boiler or sintering device flue gas more than 80% all adopts wet method that flue gas is purified, its principle is to adopt alkaline absorption solution to contact with flue gas adverse current in scrubbing tower, absorb the acidic components such as sulfur dioxide in the flue gas, shower then is the nucleus equipment of distribute slurry in the scrubbing tower, atomization absorption pernicious gas.Shower generally is installed in the middle and upper part of scrubbing tower, namely advances more than the mouth.Flue gas then advances mouth by the middle and lower part of scrubbing tower and enters.Its operation principle is that the absorbent with liquid phase forms tiny particle by the shower mean allocation to each position in scrubbing tower cross section and by nozzle atomization, and spray from top to bottom, spray liquid contacts with acid vapor phase contaminants in the upstream flue gas and carries out chemical reaction, absorb the acid contaminant in the flue gas, reach and absorb the pernicious gas purpose.Because of environment in the scrubbing tower abominable, therefore the structure of shower and material select directly to affect stability and the life-span of washing system.But spray piping commonly used is made by common FRP at present, and corrosion-resistant, wear-resisting, resistance to elevated temperatures all can meet the demands, but strong hardness is not enough, and simultaneously, the supporting structure of spray piping is comparatively complicated, is easily washed away by slurries, causes the shower bulk life time shorter.

Summary of the invention

The purpose of this utility model is to propose a kind of single main pipe type shower for the wet flue gas washing system, change defective on the structure that present spray piping exists, supporting structure to shower adopts Simple support frame and single-beam design, so that equipment is easy for installation, supporting structure is not washed away by slurries, minimum to the damage of washing tower body, thus the service life of extension device.

The single main pipe type shower that is used for the wet flue gas washing system that the utility model proposes comprises that female pipe, a plurality of arm, a plurality of nozzle connect short tube and a plurality of atomizer; Described female pipe is fixed in the scrubbing tower by brace summer and end frame, and described a plurality of arm symmetries are installed in the both sides of female pipe, and arm and female pipe link; The both sides of each arm are equipped with a plurality of nozzles and connect short tube, and nozzle connects short tube and arm links; Described atomizer is installed in the end that nozzle connects short tube.

The single main pipe type shower that is used for the wet flue gas washing system that the utility model proposes, its advantage is, arm wherein and nozzle connect the making of short tube and adopt the punching block integral forming process, so inner wall smooth, turning rounding off, resistance are little, and long service life.Nozzle connects and to pass to screw thread between short tube and the nozzle or bonding way is connected, and its objective is that to make maintenance convenient, stable.One side of the arm of shower arranges the triangle reinforcement, and reinforcement adopts same material to make one, to increase the intensity of arm.Need not continuous support during installation.When maintenance of equipment spread scaffold board, reinforcement can also play smooth platform action, so improved the safety coefficient of maintenance.The single main pipe type shower that the utility model proposes, easy for installation, supporting structure is not washed away by slurries, and minimum to the damage of washing tower body, the service life of equipment is long.

Description of drawings

Fig. 1 is the structural representation of the single main pipe type shower that is used for the wet flue gas washing system that the utility model proposes.

Fig. 2 is the structural representation of arm in the shower shown in Figure 1.

Fig. 3 is the A-A profile of Fig. 2.

Fig. 4 is the B-B profile of Fig. 2.

Fig. 5 is that the utility model is installed in the position view in the wet scrubber tower.

Among Fig. 1-Fig. 5, the 1st, female pipe, the 2nd, arm, the 3rd, brace summer, the 4th, nozzle connects short tube, the 5th, end frame, the 6th, atomizer, the 7th, triangle reinforcement, the 8th, demister, the 9th, outlet flue, the 10th, circulating line, the 11st, slurry circulating pump, the 12nd, scrubbing tower.

The specific embodiment

The single main pipe type shower that is used for the wet flue gas washing system that the utility model proposes, its structure comprise that female pipe 1, a plurality of arm 2, a plurality of nozzle connect short tube 4 and a plurality of atomizer 6 as shown in Figure 1.Female pipe 1 is fixed in the scrubbing tower 12 by brace summer 3 and end frame 5, and a plurality of arm 2 symmetries are installed in the both sides of female pipe 1, and arm 2 links with female pipe 1.The both sides of each arm 2 are equipped with a plurality of nozzles and connect short tube 4, and nozzle connects short tube 4 and links with arm 2.Atomizer 6 is installed in the end that nozzle connects short tube 4, as shown in Figure 2.

The single main pipe type shower that is used for the wet flue gas washing system that the utility model proposes, one side of arm 2 wherein, be provided with reinforcement 7, as shown in Figure 3 and Figure 4, its objective is the intensity that greatly strengthens arm, the stress of atomizer 6 in the time of can bearing a plurality of nozzles and connect the weight of short tubes 4 and operation.

The single main pipe type shower that is used for the wet flue gas washing system that the utility model proposes mainly is to be used in coal-burning boiler and the sintering device flue gas wet scrubbing technique, is one of nucleus equipment in the flue gas wet scrubbing technique.This single main pipe type shower is installed in the middle and upper part of scrubbing tower, as shown in Figure 5, is positioned at demister below 8, is used for removing the sour gas such as sulfur dioxide of flue gas.In running, the mother that the alkaline washing slurries are transported to single main pipe type shower of every layer by circulating pump 11 and circulating line 10 manage 1 and arm 2 in, through atomizer 6 atomizings and ejection from top to bottom, contact with upstream flue gas, sponge the deleterious acidic composition in the flue gas.Through several spraying layers, the acid contaminant content such as the sulfide in the flue gas just can reach the standard limit of smog release of environmental regulations.Flue gas after the purification drains into atmosphere via outlet flue 9, flue, chimney etc. behind demister 8 dehydrating demistings.Absorbed the bottom that the washing slurries of sour gas are fallen scrubbing tower 12, be recycled pump and extract out and carry out again spray washing, thereby the washing slurries has been recycling.

Single main pipe type shower of the present utility model adopts improved glass steel (FRP) to make, and structural pipe wall is by interior anticorrosion antiwear layer, impervious barrier, structure sheaf, outer anticorrosion antiwear layer form from the inside to surface.Interior its thickness of wear-and corrosion-resistant layer is 2 millimeters, and adopting epoxy vingl ester resin to add a certain proportion of carborundum is that base material uses the chemical glass fiber to become with the alkali-free glass felt, and its resin content is more than 90%.Antiseepage is that 1.5 millimeters employing epoxy vingl ester resins are that base material uses the alkali-free glass felt to become, and its resin content is more than 75%.It is that the base material alkali-free glass fiber cloth becomes with the alkali-free glass fibre felt that structure sheaf adopts structural resin, and its resin content about 45%, thickness calculate by infrastructure software to be decided.Adding a certain proportion of carborundum with epoxy vingl ester resin is that base material uses the alkali-free glass felt to become, and its resin content is more than 75%, and brushing one deck adds the resin of anti-ultraviolet agent at last.The improved glass Steel material satisfies corrosion-resistant, wear-resisting, resistant to elevated temperatures performance, can satisfy enough strong hardness again, more stable operation under can be in the scrubbing tower complicated work condition environment, and its bulk life time is more than 15 years, and is all longer shelf life than the shower of any material.

Claims

1. a single main pipe type shower that is used for the wet flue gas washing system is characterized in that this list main pipe type shower comprises that female pipe, a plurality of arm, a plurality of nozzle connect short tube and a plurality of atomizer; Described female pipe is fixed in the scrubbing tower by brace summer and end frame, and described a plurality of arm symmetries are installed in the both sides of female pipe, and arm and female pipe link; The both sides of each arm are equipped with a plurality of nozzles and connect short tube, and nozzle connects short tube and arm links; Described atomizer is installed in the end that nozzle connects short tube.