CN217188399U

CN217188399U - Plate type demister with adjustable plate interval

Info

Publication number: CN217188399U
Application number: CN202220595533.9U
Authority: CN
Inventors: 高瑞华; 赵金; 徐奇; 张颖
Original assignee: Jiangsu Zhongshun Energy Conservation Technology Co ltd
Current assignee: Jiangsu Zhongshun Energy Conservation Technology Co ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-08-16
Anticipated expiration: 2032-03-18

Abstract

The utility model relates to a flue gas purification technical field, in particular to board formula defroster of board interval adjustable, including push rod mechanism, defroster board, flexbile plate, push rod mechanism installs on board hangs roof beam and defroster supporting beam, the one end of defroster board hangs on board hangs the roof beam, and the other end links to each other with the defroster frame, the flexbile plate is located the middle part of defroster board. The utility model discloses a when flue gas load changes, it reciprocates to drive the board suspension beam through push rod mechanism, at the board suspension beam in-process that reciprocates, the bending of the defroster board that has the flexbile plate changes, and then make the distance between the defroster board change, thereby realize that the defroster inter-plate distance adjusts along with flue gas load's change, can guarantee that the flue gas velocity of flow between the defroster board does not fall, fog drop separation factor is unchangeable, thereby stabilize fog drop desorption efficiency, stabilize the defogging effect, make the fog drop reach emission standard.

Description

Plate type demister with adjustable plate interval

Technical Field

The utility model relates to a flue gas purification technical field, in particular to board-like defroster of board interval adjustable.

Background

The limestone-gypsum method is the most stable, mature and widely used wet flue gas desulfurization process at present. The empty tower spraying absorption is the current limestone-gypsum wet method for removing SO ₂ The most commonly used method, the absorption theory of the empty tower spraying is from a gas-liquid-in-gas model, gas is a continuous phase, liquid is a dispersed phase, gas and liquid are contacted through the surface of liquid water drops, sulfur dioxide and other water-soluble harmful gases in the gas pass through an interface and enter a liquid phase, so that in order to improve the purification efficiency, the gas-liquid contact area needs to be increased, namely the specific surface of liquid fog drops is increased, and the aim can be achieved by atomizing the absorption liquid through a nozzle. The smaller the particle size of the atomized particles is, the higher the purification efficiency is, but the smaller the particle size of the atomized particles is, the easier the liquid droplets are taken away by the tail gas, the load is added to the subsequent demisting device, the smaller the droplets are, the more difficult the droplets are to be removed, and the more necessary the liquid droplets are to be added with high-efficiency multistage demisting and dedusting devices, such as a multistage high-efficiency ridge demister, a tube bundle demister, a wet electric demister and the like, and simultaneously the air velocity of the air tower of the purification tower must be reduced, and at present, the air velocity is reduced from the original 4.0m/s to below 3.5 m/s. Briefly: the empty tower spraying technology is that a large amount of fine fog drops are firstly produced in tail gas, then the fine fog drops are removed, and the front process and the rear process run in a reverse way.

The multistage high-efficient roof ridge defroster belongs to the defroster that the inter-plate spacing is fixed, and is relatively poor to the adaptability of flue gas load, only can reach the droplet emission index at near the flue gas load of design point, and when skew design point is great, the flue gas velocity of flow descends, and droplet separation factor diminishes, and its defogging effect descends, can not reach the droplet emission index, finally causes the smoke and dust to exceed standard.

SUMMERY OF THE UTILITY MODEL

The utility model solves the problems that the adaptability of the demister with fixed plate spacing in the prior art to flue gas load is poor, only the flue gas load near the design point can reach the fog drop emission index, when the deviation design point is larger, the flue gas flow rate is reduced, the fog drop separation factor is reduced, the demisting effect is reduced, the fog drop emission index can not be reached, and finally the smoke dust exceeds the standard, and provides a plate-type demister with adjustable plate spacing, when the flue gas load is changed, the plate suspension beam is driven by the push rod mechanism to move up and down, in the process of moving up and down the plate suspension beam, the bending of the demister plate with a flexible plate is changed, so that the distance between the demister plates is changed, thereby realizing the adjustment of the demister plate spacing along with the change of the flue gas load, ensuring that the flue gas flow rate between the demister plates is not reduced, the fog drop separation factor is not changed, thereby stabilizing the fog drop removal efficiency, and the demisting effect is stabilized, so that the fog drops reach the emission standard.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme: the utility model provides a board-like defroster of board interval adjustable, includes push rod mechanism, defroster board, flexbile plate, push rod mechanism installs on board hangs roof beam and defroster supporting beam, the one end of defroster board hangs on board hangs the roof beam, and the other end links to each other with the defroster frame, the flexbile plate is located the middle part of defroster board.

Preferably, the device also comprises a tower body and a washing water mechanism, wherein the washing water mechanism is arranged above the plate suspension beam.

Preferably, the push rod mechanism comprises a push rod actuator and a push rod, the push rod actuator is mounted on the demister supporting beam, the push rod is connected with the plate suspension beam, and the push rod actuator drives the push rod.

As a preferred scheme, the plate hanging beam is provided with a plurality of hanging holes, and one end of the demister plate is hung in the hanging holes in the plate hanging beam.

As a preferred scheme, a plurality of grooves are formed in the bottom of the demister frame, and the other end of the demister plate is arranged in each groove.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a when flue gas load changes, it reciprocates to drive the board suspension beam through push rod mechanism, at the board suspension beam in-process that reciprocates, the bending of the defroster board that has the flexbile plate changes, and then make the distance between the defroster board change, thereby realize that the defroster inter-plate distance adjusts along with flue gas load's change, can guarantee that the flue gas velocity of flow between the defroster board does not fall, fog drop separation factor is unchangeable, thereby stabilize fog drop desorption efficiency, stabilize the defogging effect, make the fog drop reach emission standard.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the demister shape change in the flushing state of the present invention;

FIG. 3 is a schematic diagram illustrating the shape change of the demister plate in the design load state of the present invention;

FIG. 4 is a schematic diagram illustrating the shape change of the demister in a low load state;

FIG. 5 is a structural view of a demister according to embodiment 1 of the present invention;

fig. 6 is a demister structural diagram according to embodiment 2 of the present invention.

In the figure:

1. the device comprises a tower body, 2, a push rod actuator, 3, a push rod, 4, a plate suspension beam, 5, a hanging hole, 6, a demister plate, 7, a flexible plate, 8, a demister frame, 9, a demister support beam, 10 and a washing water mechanism.

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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1, a plate-type demister with adjustable plate spacing, including a push rod mechanism, demister plates 6, a flexible plate 7, the push rod mechanism is installed on a plate suspension beam 4 and a demister support beam 9, one end of the demister plates 6 is suspended on the plate suspension beam 4, the other end is connected with a demister frame 8, the flexible plate 7 is located in the middle of the demister plates 6, the plate suspension beam 4 is driven to move up and down through the push rod mechanism, in the process that the plate suspension beam 4 moves up and down, the bending of the demister plates 6 with the flexible plate 7 changes, and then the distance between the demister plates 6 also changes.

In one embodiment, the tower body 1 and the washing water mechanism 10 are further included, the washing water mechanism 10 and the demister are both located in the tower body 1, and the washing water mechanism 10 is arranged above the plate suspension beam 4.

In one embodiment, the push rod mechanism comprises a push rod actuator 2 and a push rod 3, wherein the push rod actuator 2 can be electric, pneumatic, hydraulic or manual, the push rod actuator 2 is mounted on a demister support beam 9, the push rod 3 is connected with a plate suspension beam 4, the push rod actuator 2 drives the push rod 3 to drive the plate suspension beam 4 to move up and down, and the bending of the demister plates 6 with the flexible plates 7 changes during the up and down movement of the plate suspension beam 4, so that the distance between the demister plates 6 also changes.

In one embodiment the plate suspension beam 4 is provided with a number of hanging holes 5, and one end of the demister plate 6 is suspended in the hanging hole 5 on the plate suspension beam 4.

In one embodiment, the bottom of the demister frame 8 is provided with a plurality of grooves, and the other end of the demister plate 6 is arranged in the grooves.

The principle is as follows:

when the flue gas volume deviates from the design load (as shown in fig. 3, the design load state) and becomes small, namely, as the low-load state shown in fig. 4, the push rod executor 2 drives the push rod 3 to drive the plate suspension beam 4 to move downwards, the demister plate 6 with the flexible plate 7 is compressed, the distance between the demister plates 6 becomes small, the flue gas flow area becomes small, the flue gas volume is matched with the distance between the demister plates 6, so that the flue gas flow velocity is not changed, the mist drop separation factor is not changed, so that the mist drop removal efficiency is stabilized, the mist removal effect is stabilized, and the mist drops reach the emission standard.

When the blowing-out demister needs to be washed, namely, in a washing state as shown in fig. 2, the push rod actuator 2 drives the push rod 2 to drive the plate suspension beam 4 to move upwards to the highest point, the demister plates 6 with the flexible plates 7 are stretched, the distance between the demister plates 6 is the largest, and the demister plates 6 are washed by using process water to realize washing.

Example 1

In this embodiment, as shown in fig. 5, in an absorption tower with a diameter of 6m, a plate-type demister with an adjustable plate spacing composed of 4 standard modules 2 × 2m can be provided, the height of the demister plate is designed to be 200mm, the demister can be compressed to 150mm at low load, and the washing water can be stretched to 220 mm.

Example 2

As shown in fig. 6, in the present embodiment, an absorption tower with a diameter of 12m may be provided with a plate demister with an adjustable plate pitch, which is composed of 16 standard modules 2 × 2m, 4 standard modules 1 × 2m, and 4 non-standard modules 1.2 × 2m, and the demister is designed to have a plate height of 200mm, and may be compressed to 150mm at low load, and the washing water may be stretched to 220 mm.

The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.

Claims

1. The utility model provides a board-like defroster of board interval adjustable which characterized in that: the demister structure comprises a push rod mechanism, a demister plate (6) and a flexible plate (7), wherein the push rod mechanism is installed on a plate suspension beam (4) and a demister supporting beam (9), one end of the demister plate (6) is suspended on the plate suspension beam (4), the other end of the demister plate is connected with a demister frame (8), and the flexible plate (7) is located in the middle of the demister plate (6).

2. The plate mist eliminator of claim 1 having adjustable plate separation distance, wherein: still include tower body (1) and sparge water mechanism (10), sparge water mechanism (10) arrange in board suspension beam (4) top.

3. The plate mist eliminator of claim 1 having adjustable plate separation distance, wherein: the push rod mechanism comprises a push rod execution machine (2) and a push rod (3), the push rod execution machine (2) is installed on a demister supporting beam (9), the push rod (3) is connected with a plate suspension beam (4), and the push rod execution machine (2) drives the push rod (3).

4. The plate mist eliminator of claim 1 having adjustable plate separation distance, wherein: the plate hanging beam (4) is provided with a plurality of hanging holes (5), and one end of the demister plate (6) is hung in the hanging holes (5) on the plate hanging beam (4).

5. The plate mist eliminator of claim 1 having adjustable plate separation distance, wherein: the bottom of the demister frame (8) is provided with a plurality of grooves, and the other ends of the demister plates (6) are arranged in the grooves.