CN217119614U

CN217119614U - Support device for demister of absorption tower

Info

Publication number: CN217119614U
Application number: CN202220709024.4U
Authority: CN
Inventors: 金健; 孙英凯; 宗源
Original assignee: Tianjin Xiaowo Environmental Protection Engineering Co ltd
Current assignee: Tianjin Xiaowo Environmental Protection Engineering Co ltd
Priority date: 2021-04-23
Filing date: 2022-03-25
Publication date: 2022-08-05
Anticipated expiration: 2032-03-25

Abstract

The utility model relates to an inside braced system technical field of absorption tower especially relates to a strutting arrangement for be used for absorption tower defroster. The inner wall of the absorption tower is provided with an upper and a lower multi-layer demister groups; the supporting device comprises a plurality of supporting main beams which are vertically and uniformly distributed below each layer of demister groups, and a plurality of layers of supporting ring plates corresponding to the demister groups are arranged on the inner side of the absorption tower from top to bottom; the demister group is formed by connecting blades into a whole through blade clamps and is arranged on the support main beam and the support ring plate; a plurality of flushing water pipes are connected below each supporting main beam through vertically arranged hanging pieces; the flushing water pipe is arranged in parallel with the supporting main beam; a plurality of vertical nozzles are uniformly arranged on each flushing water pipe. The device can firmly install and fix the demister group, effectively ensure the safe use of the demister and reduce the occurrence of demister faults; the supporting main beam can be used for overhauling, and the overhauling and maintenance are safer and more convenient.

Description

Support device for demister of absorption tower

Technical Field

The utility model relates to an inside braced system technical field of absorption tower especially relates to a strutting arrangement for be used for absorption tower defroster.

Background

The desulfurization absorption tower is a device for removing sulfur dioxide from a coal-fired boiler, and during the wet desulfurization process, the absorption tower easily generates mist with the particle size of 10-60 micrometers, the mist contains moisture, and is also dissolved with sulfuric acid, sulfate, sulfur dioxide and the like, and meanwhile, the pollution and the serious corrosion of a fan, a heat exchanger and a flue are also caused, so that the wet desulfurization process puts forward a defogging requirement on the absorption equipment, and the purified gas needs to be defogged before leaving the absorption tower.

The function of the demister is to collect the fog particles and slurry drops carried by the flue gas in the spray absorption process. The efficiency of a demister is related not only to its own structure but also to the severity and size of the mist particles, which is related to the viscosity of the absorption liquid, the spray jaw force and the nozzle structure. Good demisting effect can be obtained only if the performance of the demister is well matched with the diameter of the fog particles; if the demisting effect is not good, the flue gas carries slurry to be carried to downstream equipment, such as a heater, an induced draft fan and a flue, and then blockage, serious vibration of the induced draft fan, serious corrosion of the flue, scaling and the like are caused, so that the operation is forced to be stopped.

Engineering practice shows that demister fault seriously influences the standard emission requirement of desulfurization index, so the demister supporting device is optimally designed, and the demister is prevented from falling off and becomes the main problem on a spraying layer or a bottom slurry pool.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a strutting arrangement for be used for absorption tower defroster to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a supporting device for a demister of an absorption tower is characterized in that an upper and a lower layers of demister groups are arranged on the inner wall of the absorption tower; the supporting device comprises a plurality of supporting main beams which are vertically and uniformly distributed below each layer of demister groups, and a plurality of layers of supporting ring plates corresponding to the demister groups are arranged on the inner side of the absorption tower from top to bottom; the demister group is formed by connecting blades into a whole through blade clamps and is arranged on the support main beam and the support ring plate; a plurality of flushing water pipes are connected below each supporting main beam through vertically arranged hanging pieces; the flushing water pipe is arranged in parallel with the support main beam; each flushing water pipe is uniformly provided with a plurality of vertical nozzles.

Furthermore, the supporting device also comprises a washing water pipe joint, the washing water pipe joint comprises a flange with a steel pipe, one end of the steel pipe is fixed with the inner wall of the absorption tower, and the other end of the steel pipe is connected with the washing water pipe through the flange.

Furthermore, the inner wall of the absorption tower is also provided with a water pipe supporting plate for fixing a flushing water pipe, the water pipe supporting plate is fixed on the inner wall of the absorption tower, and a hole for fixing the flushing water pipe is reserved on the water pipe supporting plate.

Furthermore, each layer of demister group is provided with a hanging piece, the hanging piece is provided with a connecting hole matched with the diameter of the flushing water pipe, and the upper end of the hanging piece is welded with the support main beam.

Furthermore, the supporting main beam, the supporting ring plate, the water pipe supporting plate and the hanging piece are all made of carbon steel Q235B, and the outer side of the supporting main beam, the supporting ring plate, the water pipe supporting plate and the hanging piece is coated with an anti-corrosion and wear-resistant coating.

Compared with the prior art, the beneficial effects of the utility model are that:

general demister group strutting arrangement is supported by the mutual welded girder steel of two directions, and upper and lower demister group space is narrow and small, and the girder steel supports to corrode seriously, influences the safety and stability operation of defroster. In the embodiment of the utility model, the supporting girder adopts a closed section, the hanging piece is arranged below the supporting girder, and the annular supporting plate is arranged on the inner wall of the tower, so that the nozzle and the supporting girder are in different plane positions, and the measures ensure that the supporting girder is corrosion resistant, good in durability and strong in structural strength; in addition, the support device can firmly install and fix the demister group, thereby effectively ensuring the safe use of the demister and reducing the occurrence of demister faults; the supporting main beam can be used for overhauling, and the overhauling and maintenance are safer and more convenient.

Drawings

FIG. 1 is a schematic structural view of a support device for a demister of an absorption tower according to the present invention;

FIG. 2 is a top view of FIG. 1 taken from either A-A or B-B;

FIG. 3 is a schematic view of the connection between the flushing water pipe joint and the flushing water pipe in the embodiment of the present invention;

FIG. 4 is a schematic structural view of a hanger and a supporting main beam according to an embodiment of the present invention;

FIG. 5 is a side view of a hanger, support girder, and blade in an embodiment of the invention;

fig. 6 is a schematic view of a water pipe supporting plate according to an embodiment of the present invention.

The labels in the figure are: 1. a demister group; 11. a blade; 2. supporting the main beam; 3. a hanger; 4. flushing the water pipe; 41. a nozzle; 5. a support ring plate; 6. a washing water pipe interface; 61. a steel pipe; 62. a flange; 7. a water pipe supporting plate; 8. an absorption tower.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, in an embodiment of the present invention, a support device for a demister of an absorption tower, an upper and a lower multi-layer demister sets 1 are disposed on an inner wall of an absorption tower 8; the supporting device comprises a plurality of supporting main beams 2 which are vertically and uniformly distributed below each layer of demister groups 1, and a plurality of flushing water pipes 4 are connected below each supporting main beam 2 through vertically arranged hanging pieces 3; preferably, each layer of demister group is provided with a hanging piece 3, the hanging piece 3 is formed by assembling and welding 12mm thick steel plates, the hanging piece 3 is provided with a connecting hole matched with the diameter of the flushing water pipe 4, and the upper end of the hanging piece 3 is welded with the supporting main beam 2, so that the strength of a member is ensured;

the flushing water pipe 4 is arranged in parallel with the main supporting beam 2; each of the washing water pipes 4 is opened with a plurality of vertical nozzles 41 uniformly, and the nozzles 41 can spray washing water upward or downward. Specifically, a plurality of layers of supporting ring plates 5 corresponding to the demister groups are arranged on the inner wall of the absorption tower 8 from top to bottom; in the embodiment, an upper demister group and a lower demister group are arranged in an absorption tower 8, wherein the demister group 1 is formed by connecting blades 11 into a whole through blade clamps, is arranged on a supporting main beam 2 and a supporting ring plate 5, and is fixed with the supporting main beam 2 and the supporting ring plate 5 through fixing parts such as pipe hoops and clamping parts; the supporting ring plate 5 is welded with the inner wall of the absorption tower 8 by an annular steel plate with the thickness of 10mm according to the inner diameter of the absorption tower 8 and the process requirements.

The supporting main beam 2 and the flushing water pipe 4 are fixed with the inner wall of the absorption tower 8 through a supporting ring plate 5; the hanging piece 3 is formed by assembling and welding steel plates, and a hole is reserved on the hanging piece 3 for fixing the flushing water pipe 4;

the support device also comprises a washing water pipe connector 6, a flange 62 with a steel pipe 61 is welded after the washing water pipe connector 6 is perforated on the tower wall, and the washing water pipe connector is connected with the washing water pipe 4 through the flange 62; the inner wall of the absorption tower 8 is also provided with a water pipe supporting plate 7 for fixing the flushing water pipe 4, the water pipe supporting plate 7 is welded on the inner wall of the absorption tower 8 by a steel plate group, and an opening for fixing the flushing water pipe 4 is reserved on the water pipe supporting plate 7; the water pipe supporting plate 7 is formed by assembling and welding steel plates, and the joint of the water pipe supporting plate 7 and the inner wall of the absorption tower 8 is welded, so that the flushing water pipe 4 is ensured to be installed stably and firmly.

The utility model discloses in the example, when 8 take thick liquids operations in the absorption tower, support girder 2 and wash pipe 4 and be in different spatial position, demister group 1 with support girder 2 and be in contact position, the injection direction of wash water nozzle 41 sprays for diverging formula, the water droplet of defroster desorption and nozzle 41 spun liquid all can corrode support girder 2 and other parts, consequently the utility model discloses a support girder 2, support ring board 5, water pipe layer board 7, hang 3 and constitute by carbon steel Q235B material outer brush anticorrosive wear-resisting coating, sturdy and durable.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A supporting device for a demister of an absorption tower is characterized in that an upper and a lower layers of demister groups are arranged on the inner wall of the absorption tower; the method is characterized in that: the supporting device comprises a plurality of supporting main beams which are vertically and uniformly distributed below each layer of demister groups, and a plurality of layers of supporting ring plates corresponding to the demister groups are arranged on the inner side of the absorption tower from top to bottom; the demister group is formed by connecting blades into a whole through blade clamps and is arranged on the support main beam and the support ring plate; a plurality of flushing water pipes are connected below each supporting main beam through vertically arranged hanging pieces; the flushing water pipe is arranged in parallel with the support main beam; and a plurality of vertical nozzles are uniformly arranged on each flushing water pipe.

2. A support device for a mist eliminator for an absorption tower as set forth in claim 1, wherein: the supporting device further comprises a washing water pipe joint, the washing water pipe joint comprises a flange with a steel pipe, one end of the steel pipe is fixed with the inner wall of the absorption tower, and the other end of the steel pipe is connected with the washing water pipe through the flange.

3. A support device for a mist eliminator for an absorption tower as set forth in claim 1, wherein: the inner wall of the absorption tower is also provided with a water pipe supporting plate for fixing a flushing water pipe, the water pipe supporting plate is fixed on the inner wall of the absorption tower, and a hole for fixing the flushing water pipe is reserved on the water pipe supporting plate.

4. A support device for a mist eliminator for an absorption tower as set forth in claim 1, wherein: and a hanging piece is arranged on each layer of demister group, a connecting hole matched with the diameter of the flushing water pipe is arranged on each hanging piece, and the upper end of each hanging piece is welded with the support main beam.

5. A support device for a mist eliminator for an absorption tower as set forth in claim 1, wherein: the supporting main beam, the supporting ring plate, the water pipe supporting plate and the hanging piece are all made of carbon steel Q235B, and the outer side of the supporting main beam is brushed with an anti-corrosion and wear-resistant coating.