CN215026862U

CN215026862U - One-tower multi-cavity chamber-divided demister

Info

Publication number: CN215026862U
Application number: CN202120789391.5U
Authority: CN
Inventors: 苏二友
Original assignee: Beijing Beikelai Environmental Protection Technology Co ltd
Current assignee: Beijing Beikelai Environmental Protection Technology Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-12-07
Anticipated expiration: 2031-04-16

Abstract

The application relates to a one-tower multi-cavity chamber-divided demister which is suitable for being installed inside a desulfurization tower and comprises a demister assembly and a support frame; the support frame is suitable for being fixedly connected with the inner wall of the desulfurization tower, the demister assembly comprises more than two demister units, and the more than two demister units are fixedly arranged at the top of the support frame; more than two demister units are suitable for covering the cross section of the desulfurization tower, a partition plate is arranged between every two adjacent demister units and used for isolating the adjacent demister units, and one side of each demister unit, which faces the partition plate, is fixed with the partition plate; a bottom flushing pipe is arranged below each demister unit and is suitable for being fixed with the desulfurizing tower; and one side of the bottom flushing pipe facing the demister unit is provided with a bottom nozzle, and the bottom nozzle is communicated with the inner cavity of the bottom flushing pipe. The problem of low efficiency caused by inconsistent smoke is effectively solved.

Description

One-tower multi-cavity chamber-divided demister

Technical Field

The application relates to the field of environmental protection, in particular to a tower multi-cavity chamber type demister.

Background

In the wet desulphurization project, the boiler is loaded with some full load operation and some low load operation, the corresponding working conditions of the desulphurization tower are various, and most projects are one furnace and one tower, two furnaces and one tower, three furnaces and one tower, two furnaces and two towers. This causes the flue gas velocity in the desulfurizing tower to have high or low sometimes, and sometimes high or low sometimes, namely the flue gas velocity is inconstant, is the change, and this causes desulfurization defroster efficiency to descend, and desulfurization system discharges and exceeds standard, leads to the polluted environment.

Disclosure of Invention

In view of this, the application provides a tower multicavity compartment type defroster, and it is effectual to have solved the problem that the flue gas volume is inconstant and the inefficiency that causes.

According to one aspect of the application, a one-tower multi-cavity chamber type demister is provided, which is suitable for being installed inside a desulfurization tower and comprises a demister assembly and a support frame;

the support frame is suitable for being fixedly connected with the inner wall of the desulfurization tower, the demister assembly comprises more than two demister units, and the demister units are fixedly arranged at the top of the support frame;

more than two demister units are suitable for covering the cross section of the desulfurization tower, a partition plate is arranged between every two adjacent demister units and used for isolating the adjacent demister units, and one side, facing the partition plate, of each demister unit is fixed with the partition plate;

a bottom flushing pipe is arranged below each demister unit and is suitable for being fixed with the desulfurizing tower;

and one side of the bottom flushing pipe, which faces the demister unit, is provided with a bottom nozzle, and the bottom nozzle is communicated with the inner cavity of the bottom flushing pipe.

In a possible implementation manner, the device further comprises a connecting rod;

the connecting rod is suitable for being vertically arranged at the middle position of the desulfurizing tower, and one side of the support frame, which faces the connecting rod, is fixedly connected with the side wall of the connecting rod;

one side of the partition board, which is adjacent to the connecting rod, is fixedly connected with the side wall of the connecting rod.

In a possible implementation manner, the number of the support frames is more than two, and the more than two support frames are arranged in a layered manner along the vertical direction of the desulfurization tower;

more than two demister units are fixed on each layer of the support frame, and the bottom of each demister unit is provided with the bottom flushing pipe.

In a possible implementation manner, a top flushing pipe is further arranged between the adjacent support frames, and the top flushing pipe is suitable for being fixed with the desulfurization tower;

the top flushing pipes are arranged corresponding to the demister units, and are all positioned below the bottom flushing pipes between the adjacent support frames;

and a top spray head is arranged on one side of the top flushing pipe, which deviates from the adjacent bottom flushing pipe, and the top spray head is communicated with the inner cavity of the top flushing pipe.

In a possible implementation, the top flush pipe and the bottom flush pipe are each provided with a fixed end disposed towards the partition;

the fixed end of the partition board is fixedly connected with the partition board.

In one possible implementation, the vane pitch in the demister units is between 22mm and 30 mm.

In a possible implementation manner, the automatic flushing device further comprises an automatic flap valve, wherein the automatic flap valve is arranged at the position below the bottom flushing pipe;

the number of the automatic flap valves is matched with that of the demister units, the automatic flap valves and the demister units are arranged in a one-to-one correspondence mode, and the automatic flap valves are suitable for being fixedly connected with the inner wall of the inlet of the desulfurizing tower.

In a possible implementation manner, the number of the demister units is three, each demister unit is of a fan-shaped structure, and the three demister units are circularly arranged.

In one possible implementation, each demister unit corresponds to two of the bottom flushing pipes;

a first bottom fixing plate and a second bottom fixing plate are arranged on the partition plate, the first bottom fixing plate is fixed on one side plate surface of the partition plate, and the plate surface of the first bottom fixing plate is perpendicular to the plate surface of the partition plate;

the second bottom fixing plate is suitable for being arranged on a plate surface of one side of the partition plate, which is far away from the inner wall of the desulfurization tower, and a preset angle is formed between the plate surface of the second bottom fixing plate and the plate surface of the partition plate;

one side of each of the two bottom flushing pipes, which is far away from the desulfurizing tower, is fixed with the first bottom fixing plate and the second bottom fixing plate respectively.

In a possible implementation manner, the range of the diameter d of the water outlet of the bottom nozzle and the top nozzle is as follows: d is more than or equal to 1.5mm and less than or equal to 3 mm.

The multi-chamber compartment formula defroster of a tower of this application embodiment sets up in the inside of desulfurizing tower, and it includes defroster subassembly and support frame two parts. Wherein, the support frame provides fixed position for the defroster subassembly, and the inner wall fixed connection of support frame and desulfurizing tower, stabilizes the support frame from this. Be equipped with the defroster unit that can cover two above of desulfurizing tower cross sections in the defroster subassembly, and keep apart adjacent defroster unit through the baffle, and can wash the bottom of every defroster unit through bottom wash pipe. From this, can carry out the defogging with less defroster unit when the flue gas volume is little, the flue gas flow rate that the more defroster unit of waiting to use when the flue gas volume is great is invariable through the flue gas velocity of flow of defroster unit of keeping throughout, and this application embodiment tower multicavity compartment formula defroster remains throughout in higher efficiency interval, the effectual problem of the inefficiency that causes of the flue gas volume is invariable solved.

Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the application and, together with the description, serve to explain the principles of the application.

FIG. 1 illustrates a vertical cross-sectional view of a tower multichamber demister according to an embodiment of the present application;

FIG. 2 illustrates a horizontal cross-sectional view of a tower multichamber demister according to an embodiment of the present application;

FIG. 3 is a distribution diagram illustrating a bottom flush tube of a tower multichamber demister according to an embodiment of the present application.

Detailed Description

Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention or for simplicity in description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present application.

FIG. 1 illustrates a vertical cross-sectional view of a tower multi-chamber, chambered mist eliminator of an embodiment of the present application. FIG. 2 illustrates a horizontal cross-sectional view of a tower multichamber demister according to an embodiment of the present application. As shown in fig. 1 or fig. 2, the one-tower multi-chamber demister is installed inside the desulfurization tower, and the one-tower multi-chamber demister includes: demister subassembly and support frame 200, the inner wall fixed connection of support frame 200 and desulfurizing tower, the demister subassembly include two or more defroster units 100, the equal fixed mounting in top position of support frame 200 of two or more defroster units 100. More than two demister units 100 are arranged to cover the cross section of the desulfurizing tower, a partition plate 300 is arranged between adjacent demister units 100 for isolating adjacent demister units, and one side of each demister unit 100 facing the partition plate 300 is fixed with the partition plate 300. A bottom flushing pipe 400 is arranged below the demister unit 100, and the bottom flushing pipe 400 is fixed with the desulfurizing tower. The side of the bottom flush pipe 400 facing the demister unit 100 is provided with a bottom nozzle, which communicates with the inner cavity of the bottom flush pipe 400.

The multi-chamber compartment formula defroster of a tower of this application embodiment sets up in the inside of desulfurizing tower, and it includes defroster subassembly and support frame 200 two parts. Wherein, support frame 200 provides fixed position for the defroster subassembly, and the inner wall fixed connection of support frame 200 and desulfurizing tower from this stabilizes support frame 200. Be equipped with the defroster unit 100 that can cover the more than two of desulfurizing tower cross section in the defroster subassembly, and keep apart adjacent defroster unit 100 through baffle 300, and can wash the bottom of every defroster unit 100 through bottom wash pipe 400 and wash. From this, can carry out the defogging with less defroster unit 100 when the flue gas volume is little, the flue gas velocity of flow that the more defroster unit 100 of waiting to use when the flue gas volume is great is invariable through defroster unit 100, and the first tower multicavity compartment formula defroster of this application embodiment remains throughout in higher efficiency interval, and the effectual problem of the inefficiency that causes that the flue gas volume is invariable has been solved.

In a possible implementation manner, the desulfurization tower further comprises a connecting rod 500, the connecting rod 500 is vertically arranged at the middle position of the desulfurization tower, and one side of the support frame 200 facing the connecting rod 500 is fixedly connected with the side wall of the connecting rod 500. The side of the partition 300 adjacent to the connecting rod 500 is fixedly connected to the side wall of the connecting rod 500. Thereby, a dead angle of intersection and stress concentration when the partition 300 is intersected can be prevented.

In a possible implementation manner, more than two supporting frames 200 are provided, and the more than two supporting frames 200 are arranged in layers along the vertical direction of the desulfurization tower. More than two demister units 100 are fixed on each layer of support frame 200, adjacent demister units 100 are isolated by partition plates, and the bottom of each demister unit 100 is provided with a bottom flushing pipe 400. Thus, the demisting efficiency is further increased by providing multiple layers of demister assemblies.

Further, in a possible implementation manner, a top flushing pipe 700 is further disposed between adjacent supporting frames 200, and the top flushing pipe 700 is fixed to the desulfurization tower. The top flush pipe 700 is disposed to correspond to the demister unit 100, and the top flush pipe 700 is located at a position below the bottom flush pipe 400 between the adjacent support brackets 200. One side of the top flush pipe 700, which is away from the adjacent bottom flush pipe 400, is provided with a top shower head, which is communicated with the inner cavity of the top flush pipe 700. Cleaning the top of the demister unit 100 is facilitated by the provision of the top flush pipe 700.

Further, in a possible implementation, the top flush pipe 700 and the bottom flush pipe 400 are provided with fixed ends disposed toward the partition plate 300, and the fixed ends of the partition plate 300 are fixedly connected with the partition plate 300. By fixing the top flush pipe 700 and the bottom flush pipe 400 to the partition 300, the fixing of the top flush pipe 700 and the bottom flush pipe 400 can be made more stable.

In one possible implementation, the vane pitch in the demister unit 100 is between 22mm and 30 mm.

Still further, in one possible implementation, the vane pitch in the demister unit 100 may be distributed at equal intervals of 30mm, 27.5mm, 25mm, or 22mm, thereby increasing the efficiency of demisting.

Here, it should be noted that in one possible implementation, the vanes of the demister unit 100 may take any one of a streamlined, curved, straight, or dog-leg configuration.

Further, in a possible implementation manner, the automatic flap valve 600 is further included, the automatic flap valve 600 is disposed at a position below the bottom flushing pipe 400, the number of the automatic flap valves 600 is matched with the number of the demister units 100, and the automatic flap valves 600 and the demister units 100 are disposed in a one-to-one correspondence manner. The automatic flap valve 600 is fixedly connected with the inner wall of the inlet of the desulfurizing tower. The number of the demister units 100 used can be adjusted by rotating the flaps of the automatic flap valve 600 by the arrangement of the automatic flap valve 600. Here, it should be noted that, in one possible implementation, the automatic flap valve 600 may be implemented by adopting a conventional technical means of those skilled in the art, and the detailed description is omitted here.

In one possible implementation, there are three demister units 100, each demister unit 100 having a fan-shaped structure, and the three demister units 100 being arranged in a circle.

Here, it should be noted that, in one possible implementation manner, the three demister units 100 may be a first demister unit 110, a second demister unit 120 and a third demister unit 130, the first demister unit 110, the second demister unit 120 and the third demister unit 130 are all fan-shaped structures, fan-shaped central angles of the first demister unit 110, the second demister unit 120 and the third demister unit 130 are all 120 °, and the first demister unit 110, the second demister unit 120 and the third demister unit 130 are arranged in a circular shape. A first separation plate is arranged between the first demister monomer 110 and the second demister monomer 120, a second separation plate is arranged between the second demister monomer 120 and the third demister monomer 130, and a third separation plate 300 is arranged between the first demister monomer 110 and the third demister unit 100. The first demister unit 110, the first mist remover unit, and the third demister unit 130 may be disposed in different directions. The first partition plate, the second partition plate and the third partition plate are arranged towards the circle center of the circle formed by the first demister monomer 110, the second demister monomer 120 and the third demister monomer 130. The connecting rod 500 is arranged at the circle center of the circle formed by the first demister unit 110, the second demister unit 120 and the third demister unit 130, and the first partition plate, the second partition plate and the third partition plate are all fixedly connected with the side wall of the connecting rod 500.

Here, it should also be noted that, the first tower multi-chamber chambered demister of the embodiment of the present application may be provided with two demister assemblies, wherein the demister assembly at the lower layer of the position may be a first-stage demister, the demister assembly at the upper layer may be a second-stage demister, and the first-stage demister and the second-stage demister have the same structure.

In a possible implementation manner, each demister unit 100 corresponds to two bottom flush pipes 400, a first bottom fixing plate and a second bottom fixing plate are arranged on the partition plate 300, the first bottom fixing plate is fixed on one side of the partition plate 300, and the plate surface of the first bottom fixing plate is perpendicular to the plate surface of the partition plate 300. The second bottom fixed plate is suitable for the setting and is equipped with the angle of predetermineeing between the face of second bottom fixed plate and the face of baffle 300 on the one side face of the inner wall of desulfurizing tower is kept away from at baffle 300. One sides of the two bottom flushing pipes 400 far away from the desulfurizing tower are respectively fixed with the first bottom fixing plate and the second bottom fixing plate. Thus, the mounting structure of the embodiment of the present application is optimized.

Here, it should be noted that, in one possible implementation, the second bottom fixing plate may be fixedly connected with the connecting rod 500. The top flush pipe 700 may also be fixedly connected to the partition 300, and the top flush pipe 700 and the partition 300 may be connected in the same manner as the bottom flush pipe 400 and the partition 300.

Here, it should also be noted that in one possible implementation, the bottom flush pipe 400 and the top flush pipe 700 may be oriented in the direction of the vanes in the demister unit 100.

Here, it should also be noted that, in one possible implementation, when the demister assembly is provided with two levels, three demister units 100 are included in each of the first-level demister located at the lower level and the second-level demister located at the upper level in a circular arrangement. In the one-level defroster that is located the lower floor, the below of every defroster unit 100 all is equipped with two bottom wash pipe 400, and the top of every defroster unit 100 all is equipped with two top wash pipe 700. In the upper level of the two-stage demister, two bottom flush pipes 400 are provided below each demister unit 100. From this, this application embodiment can be bottom flushing pipe 400, defroster subassembly, top flushing pipe 700, bottom flushing pipe 400, defroster subassembly layering arranges. And the bottom flush pipe 400 in the different layers is arranged flush in the vertical direction, and the bottom flush pipe 400 and the top flush pipe 700 are arranged flush in the vertical direction. Both ends of the demister units 100 located at different layers are arranged flush.

In one possible implementation, the range of the diameter d of the water outlet of the bottom nozzle and the top nozzle is as follows: d is more than or equal to 1.5mm and less than or equal to 3 mm. Furthermore, in a possible implementation manner, the diameter d of the water outlet of the bottom nozzle and the top nozzle is 2 mm.

Further, in one possible implementation, the spray angles of the bottom nozzle and the top nozzle are both 120 °.

Here, it should be noted that, in one possible implementation, the supporting frame 200 may have a circular ring shape, and the circular ring-shaped supporting frame 200 is circumferentially disposed along the direction of the inner wall of the desulfurization tower.

Here, it should also be noted that in one possible implementation, support plates are provided at the contact positions of the demister units 100 with the tower wall, whereby the stability and sealing of the demister units 100 can be improved.

Here, it should also be noted that in one possible implementation, both bottom flush pipe 400 and top flush pipe 700 may be tubes of reinforced polypropylene material, and both bottom nozzle and top nozzle may be solid cones.

Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A one-tower multi-cavity chamber-divided demister is suitable for being installed inside a desulfurization tower and is characterized by comprising a demister assembly and a support frame;

2. A tower multichamber chamber mist eliminator as in claim 1 further comprising connecting rods;

3. The one-tower multi-chamber chambered mist eliminator of claim 1, wherein there are more than two of said support frames, and more than two of said support frames are layered in a vertical direction of said desulfurization tower;

4. The one-tower multichamber demister as claimed in claim 3, wherein a top flushing pipe is further provided between adjacent support frames, said top flushing pipe being adapted to be fixed to said desulfurization tower;

5. The one-tower multichamber demister as in claim 4, wherein said top flush tube and said bottom flush tube each have a fixed end disposed toward said partition plate;

6. A tower multichamber demister as in claim 1 wherein the vane spacing in said demister units is between 22mm and 30 mm.

7. The one-tower, multi-chamber, chambered mist eliminator of any one of claims 1-6, further comprising an automatic flap valve disposed at a lower location of said bottom flush tube;

8. A tower multichamber demister as in any one of claims 1-6 wherein there are three demister units, each demister unit having a fan-shaped configuration, and the three demister units being arranged in a circular pattern.

9. A tower multichamber chamber demister as defined in any one of claims 1-6 wherein each demister unit corresponds to two of said bottom flush tubes;

10. The tower multichamber demister as set forth in claim 4, wherein the diameters d of said bottom nozzle and said top nozzle outlets are in the range of: d is more than or equal to 1.5mm and less than or equal to 3 mm.