CN220370760U

CN220370760U - Turnover tray and desulfurizing tower

Info

Publication number: CN220370760U
Application number: CN202321816575.1U
Authority: CN
Inventors: 夏怀鹏; 王凯亮; 吴冲; 王争荣; 耿宣; 汪洋; 苏军划; 孙立群; 张锡乾; 杨彭飞
Original assignee: China Huadian Engineering Group Co Ltd; Huadian Environmental Protection Engineering and Technology Co Ltd
Current assignee: China Huadian Engineering Group Co Ltd; Huadian Environmental Protection Engineering and Technology Co Ltd
Priority date: 2023-07-11
Filing date: 2023-07-11
Publication date: 2024-01-23
Anticipated expiration: 2033-07-11

Abstract

The utility model provides a turnover type tray and a desulfurizing tower, wherein the turnover type tray comprises an annular supporting piece and a tray body, and the annular supporting piece is fixedly connected with the inner side wall of the desulfurizing tower body; the tray body is circular and comprises a connecting shaft and two semicircular supporting plates, each supporting plate is respectively and rotatably connected with the connecting shaft, a plurality of limiting rods are fixedly arranged on the upper surface of the connecting shaft, and each supporting plate is positioned below each limiting rod; the limiting rods are respectively arranged at intervals along the length direction of the connecting shaft in sequence, and are respectively perpendicular to the connecting shaft; the external diameter of tray body is greater than the internal diameter of annular support piece, and the external diameter of tray body is less than the external diameter of annular support piece to make the tray body can block and install on annular support piece. The turnover tray provided by the utility model can solve the problems of inconvenient replacement operation and low replacement efficiency of the existing tray in the desulfurizing tower.

Description

Turnover tray and desulfurizing tower

Technical Field

The utility model relates to the technical field of desulfurizing towers, in particular to a turnover tray and a desulfurizing tower.

Background

The desulfurizing tower is equipment for desulfurizing industrial fume, and the fume enters the desulfurizing tower and moves from bottom to top. In order to improve the desulfurization effect of desulfurizing tower to the flue gas, can install the metal tray in the desulfurizing tower generally, through the through-hole that sets up on the metal tray, can make the flue gas distribution of passing through more even to improve desulfurization efficiency.

In wet desulfurization, a metal tray is generally installed below a spraying system, acidic solution is generated after a spraying agent reacts with sulfur dioxide and other gases in flue gas, and the metal tray is in contact with the flue gas and the acidic solution for a long time and is easy to corrode, so that the metal tray is often required to be replaced after a desulfurization tower is operated for a period of time. However, most of the existing metal trays are fixed in the desulfurizing tower by welding, and the existing metal trays need to be cut and re-welded during replacement, so that the replacement operation is inconvenient and the efficiency is low.

Disclosure of Invention

The utility model provides a turnover tray, which can solve the problems of inconvenient replacement operation and low replacement efficiency of the existing tray in a desulfurizing tower.

A second object of the present utility model is to provide a desulfurizing tower.

The utility model provides a turnover type tray, comprising:

the annular supporting piece is used for being fixedly connected with the inner side wall of the desulfurizing tower body;

the tray comprises a tray body, wherein the tray body is circular and comprises a connecting shaft and two semicircular supporting plates, a plurality of through holes are respectively formed in each supporting plate, each supporting plate is respectively and rotatably connected with the connecting shaft, a plurality of limiting rods used for limiting the rotating positions of the supporting plates are fixedly arranged on the upper surface of the connecting shaft, and each supporting plate is positioned below each limiting rod; the limiting rods are respectively arranged at intervals along the length direction of the connecting shaft in sequence, and each limiting rod is respectively perpendicular to the connecting shaft; the outer diameter of the tray body is larger than the inner diameter of the annular supporting piece, and the outer diameter of the tray body is smaller than the outer diameter of the annular supporting piece, so that the tray body can be clamped and installed on the annular supporting piece.

According to the turnover type tray provided by the utility model, the two supporting plates are the first supporting plate and the second supporting plate respectively, the first supporting plate is rotationally connected with the connecting shaft through the two first shaft sleeves, the second supporting plate is rotationally connected with the connecting shaft through the two second shaft sleeves, and the first shaft sleeves and the second shaft sleeves are staggered.

According to the turnover type tray provided by the utility model, three limiting rods are arranged, and one limiting rod is arranged between each adjacent first shaft sleeve and second shaft sleeve.

According to the turnover type tray provided by the utility model, the length of each limiting rod is smaller than the outer diameter of the tray body.

According to the turnover type tray provided by the utility model, the lifting rings are respectively arranged on the limiting rods.

According to the turnover type tray provided by the utility model, the annular supporting piece is provided with a plurality of positioning grooves which are respectively arranged at intervals in an annular shape; the tray body is provided with a plurality of positioning holes corresponding to the positioning grooves one by one, and each corresponding positioning groove is connected with each corresponding positioning hole through a positioning pin.

The present utility model also provides a desulfurizing tower comprising:

a desulfurizing tower body;

the turnover type tray is the turnover type tray, and the turnover type tray is arranged in the desulfurizing tower body.

According to the desulfurizing tower provided by the utility model, the desulfurizing tower further comprises:

the spraying system is arranged in the desulfurizing tower body, and the turnover tray is positioned below the spraying system;

the demister is arranged in the desulfurizing tower body and is positioned above the spraying system;

the air flow uniform distribution plate is arranged in the desulfurizing tower body and is positioned above the demister;

the wet electric dust collector is arranged in the desulfurizing tower body, and is positioned above the air flow uniform distribution plate.

According to the desulfurizing tower provided by the utility model, the spraying systems comprise a plurality of slurry spraying main pipes, a plurality of slurry spraying branch pipes are respectively connected to each slurry spraying main pipe, a plurality of nozzles are respectively connected to each slurry spraying branch pipe, and each nozzle is downwards arranged; the slurry spraying main pipe adopts an oval-section pipeline, and the slurry spraying branch pipe adopts a shuttle-section pipeline.

According to the desulfurizing tower provided by the utility model, the desulfurizing tower further comprises a slurry pool arranged in the desulfurizing tower body, and the turnover tray is positioned above the slurry pool.

The top of the side wall of the desulfurizing tower body is provided with a flue gas outlet, the lower part of the side wall of the desulfurizing tower body is provided with a flue gas inlet, and the flue gas inlet is positioned below the turnover tray.

The utility model provides a turnover tray, which comprises an annular supporting piece and a tray body, wherein the annular supporting piece is used for being fixedly connected with the inner side wall of a desulfurizing tower body; the tray body is circular, the tray body comprises a connecting shaft and two semicircular supporting plates, a plurality of through holes are respectively formed in each supporting plate, each supporting plate is respectively and rotatably connected with the connecting shaft, a plurality of limiting rods for limiting the rotating positions of the supporting plates are fixedly arranged on the upper surface of the connecting shaft, and each supporting plate is located below each limiting rod; the limiting rods are respectively arranged at intervals along the length direction of the connecting shaft in sequence, and are respectively perpendicular to the connecting shaft; the external diameter of tray body is greater than the internal diameter of annular support piece, and the external diameter of tray body is less than the external diameter of annular support piece to make the tray body can block and install on annular support piece. After the tray body is damaged, the damaged tray body can be lifted upwards from the annular supporting piece so that the tray body is separated from the annular supporting piece, and then the two supporting plates of the tray body are overturned and folded under the action of self gravity, so that the tray body is conveniently taken out from the desulfurizing tower, and then the two supporting plates of the new tray body are unfolded and then are arranged on the annular supporting piece. Therefore, the turnover type tray provided by the utility model is convenient to replace the tray body by the turnover type structure of the tray body and the detachable installation mode between the tray body and the annular supporting piece, cutting and welding are not needed during replacement, and the replacement efficiency is higher.

The desulfurizing tower provided by the utility model comprises the turnover tray. Because this desulfurizing tower is provided with foretell can turn over the folding tray for this desulfurizing tower has the whole advantages of above-mentioned can turn over the folding tray, and then has improved the performance of this desulfurizing tower.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a turnover tray of the present utility model;

FIG. 2 is a schematic view of the structure of the annular support in the foldable tray of the present utility model;

FIG. 3 is a top view of the tray body in the foldable tray of the present utility model;

FIG. 4 is a schematic view showing the structure of the desulfurizing tower of the present utility model;

FIG. 5 is a schematic view showing the structure of a spray system in the desulfurizing tower of the present utility model.

Reference numerals illustrate:

1. an annular support; 101. a positioning groove; 2. a tray body; 201. a connecting shaft; 202. a supporting plate; 203. a limit rod; 204. a first sleeve; 205. a second sleeve; 206. a hoisting ring; 207. positioning holes; 3. a desulfurizing tower body; 4. a positioning pin; 5. a foldable tray; 6. a spraying system; 601. a slurry spraying main pipe; 602. slurry spraying branch pipes; 603. a nozzle; 7. a demister; 8. an air flow uniform distribution plate; 9. wet electric dust collector; 901. a power supply system; 902. a cathode system; 903. an anode system; 10. a slurry pool; 11. a flue gas outlet; 12. and a flue gas inlet.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 3, the foldable pallet of the embodiment of the present utility model includes a ring-shaped support member 1 and a pallet body 2.

Wherein, annular support piece 1 is used for with the inside wall fixed connection of desulfurizing tower body. The tray body 2 is circular, and the tray body 2 includes a connecting shaft 201 and two semicircular pallets 202, and a plurality of through holes are respectively provided on each pallet 202. Each pallet 202 is rotatably connected to the connecting shaft 201, and a plurality of stopper rods 203 for restricting the rotational positions of the pallets 202 are fixedly provided on the upper surface of the connecting shaft 201, and each pallet 202 is positioned below the stopper rod 203. The plurality of limiting rods 203 are respectively arranged at intervals along the length direction of the connecting shaft 201, and each limiting rod 203 is respectively perpendicular to the connecting shaft 201.

Wherein, the external diameter of tray body 2 is greater than the internal diameter of annular support 1, and the external diameter of tray body 2 is less than the external diameter of annular support 1 to make tray body 2 can the block install on annular support 1. When the tray body 2 is in the unfolded state, the two pallets 202 are on the same horizontal plane and the upper surfaces of the pallets 202 respectively collide with the lower surfaces of the stopper rods 203.

When the turnover type tray disclosed by the embodiment of the utility model is used, as the tray body 2 is arranged below the spraying system, the spraying agent sprayed by the spraying system can react with gases such as sulfur dioxide in flue gas, and the generated acidic solution can be in contact with the tray body 2, and after the turnover type tray is used for a long time, the tray body 2 is easy to corrode, so that the tray body 2 needs to be replaced periodically.

After the tray body 2 is damaged, the damaged tray body 2 can be lifted upwards from the annular supporting piece 1, so that the tray body 2 is separated from the annular supporting piece 1, then the two supporting plates 202 of the tray body 2 are turned downwards under the action of self gravity and are folded, so that the tray body 2 is conveniently taken out from the desulfurizing tower, then the two supporting plates 202 of the new tray body 2 are unfolded and then are mounted on the annular supporting piece 1, and at the moment, due to the limiting effect of the limiting rod 203, the two supporting plates 202 can be in a horizontal state, so that the stable support is mounted on the annular supporting piece 1.

Therefore, the turnover type tray provided by the embodiment of the utility model is convenient for replacing the tray body 2 by the turnover type structure of the tray body 2 and the detachable installation mode between the tray body 2 and the annular supporting piece 1, and has the advantages that cutting and welding are not needed during replacement, and the replacement efficiency is higher.

In some embodiments of the present utility model, the two pallets 202 are respectively a first pallet and a second pallet, the first pallet is rotatably connected to the connecting shaft 201 through two first shaft sleeves 204, the second pallet is rotatably connected to the connecting shaft 201 through two second shaft sleeves 205, and each first shaft sleeve 204 and each second shaft sleeve 205 are staggered, so that the reliability of the rotational connection between each pallet 202 and the connecting shaft 201 is ensured.

Specifically, three stopper rods 203 are provided, and one stopper rod 203 is provided between each adjacent first sleeve 204 and second sleeve 205, respectively, so that structural stability and reliability of the tray body 2 in the unfolded state can be ensured.

Specifically, the length of each stop lever 203 is smaller than the outer diameter of the tray body 2, so that the tray body 2 is convenient to install in the desulfurizing tower body.

Further, a lifting ring 206 is mounted on each of the stop bars 203, and can be used for lifting the tray body 2.

In some embodiments of the present utility model, a plurality of positioning grooves 101 are provided on the annular support 1, and the plurality of positioning grooves 101 are respectively arranged at annular intervals. The tray body 2 is provided with a plurality of positioning holes 207 corresponding to the positioning grooves 101 one by one, and each corresponding positioning groove 101 and each positioning hole 207 are connected through a positioning pin 4. That is, by positioning and mounting between the annular support member 1 and the tray body 2, stability and reliability after the tray body 2 and the annular support member 1 are assembled can be further ensured.

As shown in fig. 4 and 5, the embodiment of the present utility model further provides a desulfurizing tower, which includes a desulfurizing tower body 3 and a turnover tray 5, where the turnover tray 5 adopts the turnover tray of the above embodiment, and the turnover tray 5 is disposed in the desulfurizing tower body 3.

Because the desulfurizing tower is provided with the turnover type tray 5 of the embodiment, the desulfurizing tower has all the advantages of the turnover type tray 5 of the embodiment, and further the service performance of the desulfurizing tower is improved.

In some embodiments of the utility model, the desulfurizing tower further comprises a spraying system 6, a demister 7, an air flow uniform distribution plate 8 and a wet electric precipitator 9, wherein the spraying system 6 is arranged in the desulfurizing tower body 3, and the turnover tray 5 is positioned below the spraying system 6. The demister 7 is arranged in the desulfurizing tower body 3, and the demister 7 is positioned above the spraying system 6. The air flow uniformly-distributed plate 8 is arranged in the desulfurizing tower body 3, and the air flow uniformly-distributed plate 8 is positioned above the demister 7. The wet electric dust collector 9 is arranged in the desulfurizing tower body 3, and the wet electric dust collector 9 is positioned above the air flow uniform distribution plate 8.

Specifically, the wet electric precipitator 9 adopts an existing structural form, and comprises a power supply system 901, a cathode system 902 and an anode system 903 which are sequentially arranged from top to bottom.

Specifically, the spraying system 6 includes a plurality of slurry spraying main pipes 601, each slurry spraying main pipe 601 is connected with a plurality of slurry spraying branch pipes 602, each slurry spraying branch pipe 602 is connected with a plurality of nozzles 603, and each nozzle 603 is downward.

Wherein, the slurry spraying main pipe 601 adopts an elliptic section pipeline, the long axis of the elliptic section pipeline is parallel to the direction of the flow velocity of the flue gas, and the short axis of the elliptic section pipeline is perpendicular to the flow velocity of the flue gas. And the slurry shower main pipe 601 is a pipe with a uniform cross section.

The slurry spraying branch pipe 602 adopts a fusiform section pipeline, the long axis of the fusiform section pipeline is parallel to the flue gas flow direction, and the short axis of the fusiform section pipeline is perpendicular to the flue gas flow direction. And slurry shower manifold 602 is a graded section pipe.

Through the above-mentioned pipeline setting mode of the main pipe 601 and the branch pipe 602 are sprayed to the thick liquid, can make the thick liquid spray the projection area of main pipe 601 and branch pipe 602 and reduce greatly to reduce the resistance of spraying the system, optimized the flow field of flue gas, reduced the energy consumption of spraying the system, increased the efficiency of mass transfer, and then improved the desulfurization efficiency of desulfurizing tower.

In addition, the oval-section pipe and the fusiform-section pipe which are arranged in the above manner, the resisting moment and the moment of inertia of the pipe section are obviously increased, so that the bending resistance bearing capacity of the slurry spraying main pipe 601 and the slurry spraying branch pipe 602 is obviously improved, the deflection is smaller, and meanwhile, the water accumulation at the bottom of the outer side of the pipe can be prevented.

Taking a million units as an example, the diameter of the originally designed desulfurizing tower is 19.6m, and each layer is provided with two slurry spraying main pipes with the diameter of 0.9 m. If the slurry spraying main pipe 601 with the elliptical cross section of the embodiment is adopted, the slurry spraying main pipe 601 with the elliptical cross section with the short axis of 0.65m is selected according to the principle of equal overflow area, and the long axis of the elliptical cross section can be calculated according to the equal area. After the slurry spraying main pipes 601 with the oval cross sections in the embodiment are adopted, the length is 18.6m, the windward area of each single-layer slurry spraying main pipe 601 is 24.18 square meters, the area of each single-layer slurry spraying main pipe 601 occupies 8.02% of the cross section area of the desulfurizing tower, and the length is reduced by 3.08% compared with the original design.

The diameter of the thick section of the original slurry spraying branch pipe 602 is 0.25m, and the diameter of the thin section of the slurry spraying branch pipe 602 is 0.20m. If the slurry shower branch pipe 602 with the fusiform section of the embodiment is adopted, the short axis of the big end of the pipeline with the fusiform section is 0.16m, the short axis of the small end of the pipeline with the fusiform section is 0.12m, the total length is about 101m, and the projection area of the single-layer slurry shower branch pipe 602 is 14.14 square meters. After the slurry spraying branch pipe 602 with the fusiform section in the embodiment is adopted, the area of the single-layer slurry spraying branch pipe 602 occupies 4.69% of the cross section of the desulfurizing tower, and is reduced by 2.47% compared with the original design.

That is, the areas of the main slurry shower pipe 601 and the slurry shower branch pipe 602 of each layer are reduced by about 5.55% in total. If the calculation is carried out according to the spraying system 6 comprising a four-layer structure, the slurry spraying main pipe 601 adopts an oval-shaped section pipeline, and the slurry spraying branch pipe 602 adopts a fusiform section pipeline, then the windward area of the total pipeline can be reduced by 22.2%, so that the resistance of the desulfurizing tower is reduced by 22.2% at the spraying system, thereby optimizing the flow field of flue gas, reducing the energy consumption of the desulfurizing tower, increasing the mass transfer efficiency, improving the desulfurizing efficiency of the desulfurizing tower and greatly improving the performance of the desulfurizing tower.

Specifically, the desulfurizing tower further comprises a slurry tank 10 arranged in the desulfurizing tower body 3, and the turnover tray 5 is positioned above the slurry tank 10. The top of the side wall of the desulfurizing tower body 3 is provided with a flue gas outlet 11, the lower part of the side wall of the desulfurizing tower body 3 is provided with a flue gas inlet 12, and the flue gas inlet 12 is positioned below the turnover tray 5.

The working principle of the desulfurizing tower of the embodiment of the utility model is as follows:

when the desulfurizing tower is subjected to wet desulfurization, flue gas flows upwards after entering the desulfurizing tower body 3 from the flue gas inlet 12, the spraying system 6 conveys limestone slurry to the slurry spraying branch pipes 602 through the slurry spraying main pipe 601, then conveys the limestone slurry to each nozzle 603 from the slurry spraying branch pipes 602, and downwards sprays the limestone slurry through the nozzles 603, and the downwards sprayed limestone slurry and upward flue gas flow carry out mass transfer reaction to generate gypsum, so that the purpose of removing sulfur oxides in the flue gas is achieved. After desulfurization by spraying, the flue gas passes through the demister 7 to remove water, then passes through the air flow uniformly-distributed plate 8 to enable upward flue gas to flow more uniformly, and then passes through the wet electric dust collector 9 to be subjected to dust removal treatment and then is discharged through the flue gas outlet 11. In the desulfurization treatment process of the flue gas, sprayed limestone slurry passes through the through holes of the tray body 2 and is collected in the slurry pool 10 below.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. A foldable pallet, comprising:

2. The foldable pallet as claimed in claim 1, wherein the two pallets are a first pallet and a second pallet, respectively, the first pallet is rotatably connected to the connecting shaft through two first bushings, the second pallet is rotatably connected to the connecting shaft through two second bushings, and each first bushing and each second bushing are staggered.

3. The foldable pallet as claimed in claim 2, wherein there are three limit bars, one between each adjacent first sleeve and second sleeve.

4. A collapsible pallet as claimed in claim 3 wherein the length of each of said stop bars is less than the outer diameter of said pallet body.

5. The foldable pallet as claimed in claim 1, wherein a hoist ring is mounted to each of the stopper rods.

6. The foldable pallet as claimed in claim 1, wherein a plurality of positioning grooves are provided on the annular support member, the plurality of positioning grooves being respectively provided in annular intervals; the tray body is provided with a plurality of positioning holes corresponding to the positioning grooves one by one, and each corresponding positioning groove is connected with each corresponding positioning hole through a positioning pin.

7. A desulfurizing tower, comprising:

a desulfurizing tower body;

a foldable tray, which is a foldable tray according to any one of claims 1 to 6, and is disposed in the desulfurizing tower body.

8. The desulfurizing tower according to claim 7, further comprising:

9. The desulfurizing tower according to claim 8, wherein the spraying systems comprise a plurality of slurry spraying main pipes, each slurry spraying main pipe is respectively connected with a plurality of slurry spraying branch pipes, each slurry spraying branch pipe is respectively connected with a plurality of nozzles, and each nozzle is downward; the slurry spraying main pipe adopts an oval-section pipeline, and the slurry spraying branch pipe adopts a shuttle-section pipeline.

10. The desulfurizing tower of claim 8, further comprising a slurry tank disposed within said desulfurizing tower body, said foldable tray being positioned above said slurry tank;