CN213643691U - New-type dust removal defogging device sparge water system's spray column - Google Patents

Abstract

The utility model relates to a spray tower of a novel dust-removing demisting device flushing water system, which comprises a tower body, wherein a flue inlet, a spray layer, a composite dust-removing demisting device and a flushing water system are arranged in the tower body from bottom to top, the flushing water system comprises an upper flushing pipe branch and a lower flushing pipe branch, the upper flushing pipe branch and the lower flushing pipe branch are respectively provided with a support frame, a plurality of flushing main pipes are arranged on the support frames, the flushing main pipes are arranged to penetrate through tower walls at two radial sides of the spray tower, a plurality of flushing heads are distributed on the flushing main pipes, the flushing main pipes are made of stainless steel, the flushing main pipes are of a multi-section connecting structure, two adjacent sections are connected by flanges, one end of each main pipe is a water inlet end, the other end is provided with an opening, the opening is connected with a blow-off pipe which is externally connected with a sewage tank, the blow-off pipe is connected with a manual valve, preventing the nozzle from being blocked due to gypsum deposited in the washing water main pipe.

Description

New-type dust removal defogging device sparge water system's spray column

Technical Field

The utility model relates to a new-type dust removal defogging device sparge water system's spray column.

Background

The limestone-gypsum wet desulphurization process is the most mature and widely applied flue gas desulphurization technology in the prior art, but is easy to generate gypsum rain at the periphery, which not only causes harm to the production of a plant area, but also interferes with the normal life of the neighboring residents.

The gypsum slurry carried in the desulfurized clean flue gas is the source of the phenomenon of 'gypsum rain', the gypsum slurry in the clean flue gas mainly comes from fine liquid drops atomized by spray layer nozzles of the absorption tower, the clean flue gas is discharged into the atmosphere from a chimney and then passes through a composite dedusting and demisting device, and the fog drops can be effectively removed after passing through a dedusting demister. But dust removal, defroster take place to lead to flue gas flow field inequality, flue gas velocity of flow too fast after blockking up, and the velocity of flow exceeds the design value, and greatly reduced will be invalidated even to the effect of defroster, and the defroster also can take place the secondary and carry the phenomenon under high-speed flue gas, and a large amount of gypsum thick liquids will be carried the thick liquid phenomenon along with the flue gas into the chimney, form clean flue gas and carry the thick liquid phenomenon, also be exactly the phenomenon of "gypsum rain" of colloquial name.

Composite electrode formula dust removal defogging device in the spray column, including cylindric barrel, the lower port of barrel is into the cigarette mouth, and the upper portion of barrel is equipped with the exhaust port, and the inner chamber middle part of barrel is equipped with a plurality of honeycomb shells that connect in parallel each other, and the axis of each honeycomb shell is parallel to each other with the axis of barrel, and the inner chamber lower part of each honeycomb shell is equipped with the spiral-flow type dust remover respectively, and the inner chamber upper portion of each honeycomb shell is equipped with the wet electric dust remover of electrode formula respectively. The cyclone dust collector comprises cyclone guide blades which can make the flue gas generate rotation, and a spray head is arranged above the cyclone guide blades. The electrode type wet electric dust collector takes the upper part of a honeycomb shell as a non-metallic anode plate, the center of the electrode type wet electric dust collector is inserted with a cathode bar, and a plurality of cathode needles which horizontally point to the outside are uniformly distributed on the cathode bar. The composite electrode type dust removal and mist elimination device is mainly used in wet flue gas desulfurization, and can also remove pollutants such as dust, PM10, PM2.5, toxic heavy metal and sulfur trioxide in flue gas while removing mist. The demisting device has the characteristics of high demisting efficiency, smaller occupied space and low manufacturing cost. Compact structure, the energy consumption is low, and dust collection efficiency is high, can satisfy the ultra-clean emission requirement of thermal power plant's flue gas.

In order to ensure the continuous and effective operation of the composite electrode type dust and mist removing device, a flushing system spray water system, an internal spraying system and an external piping system are respectively arranged on the upper part and the lower part of the device. The inner spraying system is divided into a charged area for washing and a rotational flow plate for washing, the charged area is mainly used for regularly washing and cleaning the anode tube group and the cathode system, and the rotational flow plate is mainly used for regularly washing and cleaning the rotational flow plate at the inlet. The external piping system mainly comprises a water tank, a water pump, a valve, a pipeline and an installation accessory, and supplies water for the internal spraying system.

In the original flushing water system, the inner piping is made of PP pipe material. The phenomenon that the broken plug of the pipeline joint appears in the main pipe of the washing water in the running of the washing water system, and high voltage electricity is generated in the running of an electric dust remover at the upper part, so that the pipeline is fused, and the pipe bundle is partially broken at the joint of the washing water pipe at the online bottom.

When the pipeline of the flushing water system of the composite dedusting and demisting device is broken, the plug falls off and the pipeline is melted through, a large amount of flushing water leaks in the flushing process, the pressure of the flushing water of the demister is lower than the flushing effect, so that the dehumidification mechanical part is blocked by gypsum to cause serious scaling, the demisting effect is lost, and the gypsum rain phenomenon is induced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a new-type dust removal defogging device sparge water system's spray column to solve the female pipe that washes among the prior art and drop and influence the washing effect and lead to the gypsum rain phenomenon, because of the gypsum thick liquid is flowed backward by the nozzle and is got into and wash female pipe, there is the problem that washes female pipe deposition gypsum jam and wash the branch pipe simultaneously.

In order to solve the problem, the utility model relates to a new-type dust removal defogging device wash water system's spray column adopts following technical scheme:

the spray tower of the novel dust and mist removing device flushing water system comprises a tower body, wherein a flue inlet, a spray layer, a composite dust and mist removing device and a flushing water system are arranged in the tower body from bottom to top, the flushing water system comprises an upper flushing pipe branch arranged above the composite dust and mist removing device and a lower flushing pipe branch arranged below the composite dust and mist removing device, the upper flushing pipe branch and the lower flushing pipe branch are respectively provided with a support frame, a plurality of flushing main pipes are arranged on the support frames, the flushing main pipes are arranged to penetrate through tower walls on two radial sides of the spray tower, a plurality of flushing heads are distributed on the flushing main pipes, the flushing main pipes are made of stainless steel, the flushing main pipes are in a multi-section connection structure, two adjacent sections are connected through flanges, one end of each main pipe is a water inlet end, the other end of each main pipe is provided with an opening, the opening is connected, and the sewage discharge pipe is connected with a manual valve.

Furthermore, the flushing head is communicated with each cylinder in the combined type dedusting and demisting device through a hose.

Furthermore, the sewage discharge pipe connected to the main pipe of the upper washing pipe branch and the lower washing pipe branch is connected by a tee joint.

The utility model has the advantages as follows: compared with the prior art, the utility model relates to a new-type dust removal defogging device sparge water system's spray column through changing the female pipe of sparge water pipeline, and the material changes the stainless steel into by PP, avoids drawing arc fusing pipeline, and the pipe connection adopts flange joint to avoid the pipeline fracture end cap to drop. Furthermore, the flushing system runs for a long time, partial joints of the pipe bundle branch pipes drop, gypsum fog drops can enter the main pipe, the pipe is subjected to gypsum deposition, the nozzles are easily blocked by gypsum during flushing after a large amount of gypsum deposits, the tail end of the main pipe is additionally provided with a blow-off pipe and a manual valve, and the regular blow-off before flushing prevents the pipe from being deposited and blocking the nozzles to influence the flushing effect. Thereby can avoid the gypsum rain phenomenon and the phenomenon of pipeline deposit gypsum that the female pipe junction drops and leads to completely.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described as follows:

FIG. 1 is a schematic structural view of a spray tower of a flushing system of a novel dedusting and demisting device of the present invention;

FIG. 2 is a schematic diagram of the flushing line branch of FIG. 1;

FIG. 3 is a sectional view of the connection between the flushing mother pipe and the cylinder in FIG. 2.

Description of reference numerals: 1-a tower body; 2-flue inlet; 3-spraying layer; 4-a combined dust removal device; 5-a flushing water system; 6-flue outlet; 7-washing the main pipe; 8-a sewage draining pipe; 9-manual valve; 10-a rinsing head; 11-a hose.

Detailed Description

In order to make the technical purpose, technical solution and advantageous effects of the present invention clearer, the technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

The utility model relates to a concrete embodiment of new-type dust removal defogging device wash water system's spray column, as shown in fig. 1-fig. 3, the structure of this spray column is unanimous basically with the structure of the spray column among the prior art, including tower body 1, 1 inside flue import 2 of having arranged from bottom to top in proper order of tower body, spray layer 3, combined type dust removal defogging device and wash water system 5, flue export 6 etc.. Wherein in waste gas gets into tower body 1 from flue import 2, spray layer 3 at this moment and spray, the flue gas reacts with the shower water and passes through combined type dust removal defogging device to last, breaks away from pollutants such as dust, PM10, PM2.5, poisonous heavy metal and sulfur trioxide that contain in the flue gas, finally arranges to the external world via flue export 6. In this embodiment, the structures of the spraying layer 3 and the combined type dust and mist removing device are the same as those of the prior art, and are not particularly limited.

The washing water system 5 is including arranging in the upper washing pipe branch road of combined type dust removal defogging device's top and arranging in the lower washing pipe branch road of combined type dust removal defogging device's below, the structure of lower washing pipe branch road is unanimous basically with the structure of upper washing pipe branch road, take the lower washing pipe branch road as an example, lower washing pipe branch road includes the support grid of fixed stay in tower body 1, still including arranging a plurality of on each support grid and washing female pipe 7, wash female pipe 7 along tower body 1's radial interval parallel arrangement side by side, each washes and has a plurality of flushing head 10 on the female pipe 7 equipartition, each corresponding flushing head 10 communicates respectively with each barrel in the combined type defogging device, be used for letting in the high pressure water inside the barrel in order to wash the barrel.

In this embodiment, the both ends of washing female pipe 7 run through the radial both sides lateral wall of tower body 1 respectively and arrange, and wherein one end is the water inlet, and the external equipment such as water tank, water pump that has. The other end is provided with an opening, the opening is connected with a drain pipe 8, the drain pipe 8 is used for being externally connected to a sewage pool, and meanwhile, the drain pipe 8 is connected with a manual valve 9.

The washing main pipe 7 is made of a 316L stainless steel material instead of a PP material, so that the pipeline is prevented from being fused by arc discharge, the main pipe 7 is of a sectional type connecting structure, and a flange connecting structure is adopted between two adjacent sections, so that the structural strength of the main pipe 7 can be ensured, and the pipeline is prevented from being separated as much as possible.

In the actual work process, use novel wash water system 5 back, can effectively avoid the emergence of the pipeline abnormal conditions to prevent that washing pressure reduces, long-term effectual assurance composite electrode formula dust removal defogging device's washing effect, the prevention is blockked up and is taken place, guarantees the dust removal defogging effect and prevents the emergence of gypsum rain.

Furthermore, the washing head 10 is communicated with each cylinder in the combined type dedusting and demisting device through a hose 11, and the hose 11 is connected with the cylinder, so that the flow stability of water passing through can be ensured, and the cylinder is convenient to disassemble, assemble and maintain at a later stage.

Further, the sewage discharge pipe 8 connected to the main pipe 7 of the upper flushing pipe branch and the lower flushing pipe branch is connected through a tee joint, so that the outlet ends of the two flushing pipe branches can be connected together, the operation is convenient during periodic sewage discharge, and sewage can be treated in a centralized mode. Of course, in other embodiments, the sewage draining operations may be performed separately.

Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating but not limiting the technical solution of the present invention, and any equivalent replacement and modification or partial replacement which do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims (3)

1. A spray tower of a novel dust and mist removing device flushing water system comprises a tower body, wherein a flue inlet, a spray layer, a composite dust and mist removing device and a flushing water system are arranged in the tower body from bottom to top, the flushing water system comprises an upper flushing pipe branch arranged above the composite dust and mist removing device and a lower flushing pipe branch arranged below the composite dust and mist removing device, the upper flushing pipe branch and the lower flushing pipe branch are respectively provided with a support frame, a plurality of flushing main pipes are arranged on the support frames, the flushing main pipes are arranged to penetrate through tower walls on two radial sides of the spray tower, and a plurality of flushing heads are distributed on the flushing main pipes. The sewage discharge pipe is used for being externally connected with a sewage pool, and a manual valve is connected to the sewage discharge pipe.

2. The spray tower of a novel dedusting and demisting device water flushing system as claimed in claim 1, wherein the flushing head is communicated with each cylinder in the composite dedusting and demisting device through a hose.

3. The spray tower of a novel dedusting and demisting device water flushing system as claimed in claim 2, wherein the sewage discharge pipes connected to the main pipes of the upper washing pipe branch and the lower washing pipe branch are connected by a tee joint.

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