CN209952589U

CN209952589U - Desulfurization absorption tower carries and imitates device

Info

Publication number: CN209952589U
Application number: CN201920735825.6U
Authority: CN
Inventors: 王海明
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2020-01-17
Anticipated expiration: 2029-05-20

Abstract

The utility model discloses a desulfurization absorption tower efficiency-improving device, which comprises a ring plate and a spray liquid conveying pipeline, wherein the ring plate is in a ring shape and is horizontally placed inside a desulfurization absorption tower, the ring plate is welded and fixed with the inner wall of the desulfurization absorption tower, and the outer surface of the outer diameter position of the ring plate is covered with an anticorrosive coating; the spray liquid conveying pipeline is transversely erected at the top of the annular plate, a plurality of spray pipelines which are arranged at intervals are arranged on the side face of the conveying pipeline in a spraying mode, a spray head is installed at the bottom of each spray pipeline, and the spray pipelines are communicated with the spray liquid conveying pipeline.

Description

Desulfurization absorption tower carries and imitates device

Technical Field

The utility model relates to a carry and imitate device technical field, specifically say that a desulfurization absorption tower carries and imitates device.

Background

The diameter of the absorption tower of the desulfurization system of a large-scale thermal power plant is large, so that the distribution of flue gas is difficult to be uniform, and the slurry spraying amount and the coverage rate of a nozzle are obviously lower than those of other areas in the absorption tower at the part close to the wall of the absorption tower. Therefore, when the empty tower is sprayed, the flue gas flow velocity of the tower wall part is far greater than that of the rest part, and the flue gas can easily flow in a deflected manner. Under the condition that the desulfurization efficiency is less than 97%, the partial bias flow has little influence on the desulfurization efficiency, but when the requirement on the desulfurization efficiency is 99%, the partial influence is not negligible, because the nozzles in the tower wall region are less arranged, the spraying resistance is smaller, the flue gas is easy to rise and escape along the tower wall, and analysis shows that the flue gas flow velocity in the absorption tower is uneven, the density of partial region spraying slurry is low, most of the partial gas flow is subjected to wall flow, SO2 in partial gas flow is not completely removed, and the desulfurization efficiency is reduced; the uneven flow field can cause the blockage of a demister of the first-stage tower to be serious, the pressure difference reaches 1500Pa when the pressure difference is highest, although the large-flow and frequent washing of the demister is adopted, the problem can not be solved fundamentally, and the water balance of a desulfurization absorption system is seriously disordered, so that the safe operation of a unit is seriously restricted.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above-mentioned not enough, the utility model provides a desulfurization absorption tower carries and imitates device here has can effectually weaken and spray the washing away of liquid to the tower wall, prevents that the tower wall flue gas from escaping, improves desulfurization efficiency's advantage.

The utility model is realized in such a way, a desulfurization absorption tower effect-improving device is constructed, which comprises a ring plate and a spray liquid conveying pipeline, wherein the ring plate is in a ring shape and is horizontally placed inside the desulfurization absorption tower, the ring plate is welded and fixed with the inner wall of the desulfurization absorption tower, and the outer surface of the outer diameter position of the ring plate is covered with an anticorrosive coating; the spraying liquid conveying pipeline is transversely erected at the top of the annular plate, a plurality of spraying pipelines which are arranged at intervals are arranged on the side surface of the spraying conveying pipeline, a spraying head is arranged at the bottom of the spraying pipeline, and the spraying pipeline is communicated with the spraying liquid conveying pipeline.

Furthermore, an embedded groove is formed in the annular plate, and the size of an opening of the embedded groove corresponds to the diameter of the spraying liquid conveying pipeline. The ring plate that sets up is located sprays liquid conveying line bottom, sprays liquid conveying line and is arranged in carrying the spray liquid to let in spraying line, spray reaction thick liquid desulfurization to the flue gas that contains sulphur by the shower head, the ring plate level is placed in spraying liquid conveying line bottom, the shower head spun thick liquid that is close to absorption tower inner wall edge like this receives the obstruction of ring plate, the scouring force on the absorption tower inner wall has been reduced, and the ring plate has still blockked the ascending escape of flue gas of tower wall part, high desulfurization efficiency has effectively been improved.

Furthermore, the anticorrosive coating is specifically made of glass flake materials. The corrosion-resistant layer is arranged to protect the welding position of the ring plate, so that the ring plate is prevented from falling off due to corrosion of sulfide in desulfurization reaction, and the service life of the ring plate is prolonged.

Furthermore, the ring plate is made of 2205 type stainless steel, so that the ring plate has high strength and good impact toughness, and the structural strength and the service life of the ring plate are ensured.

Furthermore, the outer diameter of the ring plate corresponds to the inner diameter of the desulfurization absorption tower, so that no gap is generated between the ring plate and the inner wall of the desulfurization absorption tower.

The utility model discloses an improve and provide a desulfurization absorption tower here and carry and imitate device, carry with current desulfurization absorption tower and imitate the device and compare, have following advantage: have can effectually weaken and spray the washing away of liquid to the tower wall, prevent that tower wall flue gas from escaping, improve desulfurization efficiency's advantage, the concrete embodiment is:

the method has the advantages that: the ring plate is provided with an embedded groove, and the size of the opening of the embedded groove corresponds to the diameter of the spray liquid conveying pipeline. The ring plate that sets up is located sprays liquid conveying line bottom, sprays liquid conveying line and is arranged in carrying the spray liquid to let in spraying line, spray reaction thick liquid desulfurization to the flue gas that contains sulphur by the shower head, the ring plate level is placed in spraying liquid conveying line bottom, the shower head spun thick liquid that is close to absorption tower inner wall edge like this receives the obstruction of ring plate, the scouring force on the absorption tower inner wall has been reduced, and the ring plate has still blockked the ascending escape of flue gas of tower wall part, high desulfurization efficiency has effectively been improved.

The method has the advantages that: the anticorrosive coating is made of glass flake materials. The corrosion-resistant layer is arranged to protect the welding position of the ring plate, so that the ring plate is prevented from falling off due to corrosion of sulfide in desulfurization reaction, and the service life of the ring plate is prolonged.

Drawings

FIG. 1 is a schematic structural view of a desulfurization absorption tower effect-enhancing device of the present invention;

fig. 2 is a schematic view of a local structure of a ring plate of a desulfurization absorption tower effect-improving device of the utility model.

Sequence numbers shown in the figures: the spray device comprises a ring plate 1, a spray liquid conveying pipeline 2, a spray pipeline 3, a spray header 4, an embedded groove 5 and an anticorrosive layer 6.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings, wherein the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention; furthermore, the terms "first," "second," "third," "upper, lower, left, right," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides a desulfurization absorption tower efficiency-improving device through improvement, as shown in the attached drawing of the specification, the device can be implemented as follows; the device comprises a ring plate 1 and a spray liquid conveying pipeline 2, wherein the ring plate 1 is in a ring shape and is horizontally placed inside a desulfurization absorption tower, the ring plate 1 is welded and fixed with the inner wall of the desulfurization absorption tower, and an anticorrosive layer 6 covers the outer surface of the outer diameter position of the ring plate 1; the spray liquid conveying pipeline 2 is transversely erected at the top of the annular plate 1, a plurality of spray pipelines 3 which are arranged at intervals are arranged on the side surface of the spray conveying pipeline 2, a spray head 4 is arranged at the bottom of each spray pipeline 3, and the spray pipelines 3 are communicated with the spray liquid conveying pipeline 2.

The utility model discloses in, seted up caulking groove 5 on the crown plate 1, the size of 5 openings in caulking groove is corresponding with the diameter size that sprays liquid conveying pipeline 2. The annular plate 1 is arranged at the bottom of the spray liquid conveying pipeline 2, the spray liquid conveying pipeline 2 is used for conveying spray liquid to be introduced into the spray pipeline 3, the spray header 4 sprays reaction slurry to sulfur-containing flue gas for desulfurization, and the annular plate 1 is horizontally arranged at the bottom of the spray liquid conveying pipeline 2, so that the slurry sprayed out of the spray header 4 close to the edge of the inner wall of the absorption tower is blocked by the annular plate 1, the scouring force on the inner wall of the absorption tower is reduced, the annular plate 1 also blocks the flue gas on the tower wall part from ascending and escaping, and the high desulfurization efficiency is effectively improved; the anticorrosive layer 6 is made of glass flake material. The welding part of the ring plate 1 is protected by the arranged anticorrosive coating 6, so that the falling off of the ring plate 1 caused by the corrosion of sulfide in desulfurization reaction is prevented, and the service life of the ring plate 1 is prolonged; the ring plate 1 is made of 2205 type stainless steel, so that the ring plate 1 has high strength and good impact toughness, and the structural strength and the service life of the ring plate 1 are ensured; the outer diameter of the ring plate 1 corresponds to the inner diameter of the desulfurization absorption tower, so that no gap is generated between the ring plate 1 and the inner wall of the desulfurization absorption tower.

The working principle of the desulfurization absorption tower effect-improving device is as follows: the annular plate 1 is located the 2 bottoms of liquid conveying pipeline that sprays, it lets in spray line 3 to spray liquid conveying pipeline 2 is arranged in carrying the spray liquid, spray reaction slurry desulfurization to the flue gas that contains sulphur by shower head 4, annular plate 1 level is placed in the liquid conveying pipeline 2 bottoms that sprays, like this at the 4 spun slurries of shower head near absorption tower inner wall edge, receive the obstruction of annular plate 1, the scouring force on the absorption tower inner wall has been reduced, and annular plate 1 has still blockked the ascending escape of flue gas of tower wall part, high desulfurization efficiency has effectively been improved.

In conclusion; desulfurization absorption tower is carried and is imitated device, carries with current desulfurization absorption tower and imitate the device and compare, has and can effectually weaken and spray the washing away of liquid to the tower wall, prevents that tower wall flue gas from escaping, improves desulfurization efficiency's advantage.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a desulfurization absorption tower carries effect device, includes crown plate (1) and sprays liquid conveying line (2), its characterized in that: the annular plate (1) is annular and horizontally placed inside the desulfurization absorption tower, the annular plate (1) is fixedly welded with the inner wall of the desulfurization absorption tower, and an anticorrosive layer (6) covers the outer surface of the outer diameter position of the annular plate (1); the spray pipe (2) is transversely erected at the top of the ring plate (1), a plurality of spray pipes (3) which are arranged at intervals are arranged on the side surface of the spray pipe (2), a spray head (4) is installed at the bottom of each spray pipe (3), and the spray pipes (3) are communicated with the spray pipe (2).

2. The desulfurization absorption tower efficiency-improving device according to claim 1, characterized in that: the ring plate (1) is provided with an embedded groove (5), and the size of the opening of the embedded groove (5) corresponds to the diameter of the spray liquid conveying pipeline (2).

3. The desulfurization absorption tower efficiency-improving device according to claim 1, characterized in that: the anticorrosive layer (6) is made of glass flake materials.

4. The desulfurization absorption tower efficiency-improving device according to claim 1, characterized in that: the ring plate (1) is made of 2205 type stainless steel.

5. The desulfurization absorption tower efficiency-improving device according to claim 1, characterized in that: the outer diameter of the ring plate (1) corresponds to the inner diameter of the desulfurization absorption tower.