Water collection type efficient demister

Abstract

The utility model discloses a water collection type efficient demister, relates to the technical field of demisters, and comprises a demister body, the left end and the right end of the demister body are both fixedly provided with side supporting plates, and the sides, away from the demister body, of the two side supporting plates are both fixedly provided with fixed hanging plates; the two fixed hanging plates are each provided with a left-right through hole, and a connecting rod is arranged on the inner sides of the two through holes in a penetrating mode. According to the utility model, through the mutual cooperation between the guide plate and the water chute, when liquid drops collected by the demister fall down along the blades, the guide plate can prevent flue gas below from reversely blowing the falling liquid drops, so that the liquid drainage is accelerated, the demisting efficiency is enhanced, the scaling risk is reduced, and the collected water is led out of the tower through an internal pipeline; meanwhile, the guide plates, the water guide grooves, internal pipelines and the like are modularized, overhauling and daily maintenance are facilitated, and the resistance of the demister cannot be increased due to the fact that no space for preventing flue gas from entering the blades of the demister exists.

Description

Technical Field

[0001] This utility model relates to the field of demister technology, specifically to a water-collecting high-efficiency demister. Background Technology

[0002] In the FGD flue gas desulfurization process, the desulfurization tower demister is a device used to remove sulfur oxides from the exhaust gas. It is typically located at the top of the desulfurization tower, removing water mist and sulfur oxides from the exhaust gas to achieve purification. The principle of the desulfurization tower demister is mainly based on physical methods, utilizing the different physical properties of water mist and sulfur oxides to achieve separation. However, existing technologies have the following problems:

[0003] Because existing demisters need to reduce their normal flushing frequency as the flue gas temperature decreases, the evaporation rate decreases, or in order to maintain the liquid level in the absorption tower, the risk of scaling in the demister increases, which affects environmental protection indicators. Utility Model Content

[0004] This invention provides a water-collecting high-efficiency demister to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A water-collecting high-efficiency demister includes a demister body. Side support plates are fixedly installed at both ends of the demister body. Fixed hanging plates are fixedly installed on the side of each side support plate away from the demister body. Each fixed hanging plate has a through hole running through it from left to right. A connecting rod is installed through the inner side of each through hole. Water collection mechanisms are provided on both the left and right sides below the connecting rod. An inverted octagonal guide plate is fixedly installed on the opposite side of each fixed hanging plate. Several water guide grooves are opened on the top of the guide plate. The left and right guide plates are located on the bottom left and right sides of the demister body, respectively.

[0007] A further improvement of the present invention is that: both water collection mechanisms include a water collection box, and an installation plate is fixedly installed on the top of the two water collection boxes. The front side of the two installation plates is provided with a left-right through fixing slot, and both fixing slots are engaged with the connecting rod.

[0008] A further improvement of this utility model is that: the two water collection boxes are respectively located below the two inverted octagonal guide plates, and the front and rear sides of the two water collection boxes are fixedly connected with drain pipes that penetrate their inner cavities.

[0009] A further improvement of this utility model is that: the ends of the two drain pipes in front of and behind the two water collection boxes that are far from the water collection boxes are all fixedly connected to drain pipes, and the bottom ends of the four drain pipes are fixedly connected to water supply pipes.

[0010] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0011] 1. This utility model provides a water-collecting high-efficiency demister. Through the cooperation between the guide plate and the water guide groove, when the liquid droplets collected by the demister fall along the blades, the guide plate can prevent the flue gas below from blowing the falling liquid droplets back, thereby accelerating the discharge of liquid and enhancing the demisting efficiency.

[0012] 2. This utility model provides a water-collecting high-efficiency demister. Through the cooperation between the water collection box, the drain pipe, the drain hanging pipe and the water conveying pipe, and by setting the water collection box below the guide plate, the discharged droplets are collected and discharged outside the tower for purification and reuse. This is beneficial to the water balance of the absorption tower and has a certain water-saving effect.

[0013] 3. This utility model provides a water-collecting type high-efficiency demister. The water collection system of the demister does not increase the resistance of the demister body because there is no space to block the flue gas from entering the demister blades. The water collection system only collects the droplets that flow into the bottom water guide groove from the surface of the blades. The droplets are relatively clean. At the same time, the modular design facilitates subsequent inspection, maintenance and reuse. The droplets that do not collect at the bottom are carried by the flue gas during the blade stroke. These droplets are relatively turbid. Some of them enter the upper demister and some fall directly back into the tower, which is not within the collection range of the water collection system. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This utility model Figure 1 Enlarged diagram of point A in the diagram;

[0016] Figure 3 This is a schematic diagram of the water collection mechanism of this utility model.

[0017] Figure 4 This is a schematic diagram of the drainage pipe structure of this utility model.

[0018] In the diagram: 1. Demister body; 11. Side support plate; 2. Fixed hanging plate; 21. Guide plate; 22. Water guide channel; 3. Through hole; 4. Connecting rod; 5. Water collection mechanism; 51. Water collection box; 52. Mounting plate; 53. Fixed slot; 54. Drain pipe; 541. Drain hanging pipe; 542. Water supply pipe. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figure 1 , Figure 2 As shown, this utility model provides a water-collecting type high-efficiency demister, including a demister body 1. Side support plates 11 are fixedly installed at both ends of the demister body 1. Fixed hanging plates 2 are fixedly installed on the side of the two side support plates 11 away from the demister body 1. The two fixed hanging plates 2 are provided with through holes 3 that pass through from left to right. Connecting rods 4 are provided through the inner side of the two through holes 3. Water collection mechanisms 5 are provided on the left and right sides below the connecting rods 4. Inverted octagonal guide plates 21 are fixedly installed on the opposite sides of the two fixed hanging plates 2. Several water guide grooves 22 are provided on the top of the guide plates 21. The left and right guide plates 21 are located on the bottom left and right sides of the demister body 1, respectively.

[0021] The water droplets generated by the demister body 1 can flow under the action of gravity to the guide plate 21 on the opposite side of the fixed hanging plate 2 fixed to the outer wall of the side support plate 11. The water droplets are concentrated and flow into the inner cavity of the water collection box 51 by the inverted V-shaped guide plate 21 and the water guide groove 22 opened on its outer wall. This prevents the flue gas below from blowing the falling droplets back, thereby speeding up the drainage and enhancing the demisting efficiency.

[0022] like Figure 3 As shown, both water collection mechanisms 5 include a water collection box 51. The top of the two water collection boxes 51 is fixedly installed with an installation plate 52. The front side of the two installation plates 52 is provided with a left-right through fixing slot 53. The two fixing slots 53 are engaged with the connecting rod 4. The two water collection boxes 51 are respectively located below the two inverted octagonal guide plates 21. The front and rear sides of the two water collection boxes 51 are fixedly connected with a drain pipe 54 that passes through its inner cavity.

[0023] The water collection box 51 is stably installed on the outer wall of the connecting rod 4 using the fixing slot 53 opened in the mounting plate 52, and is suspended below the guide plate 21. The water dripping into the water collection box 51 can be discharged through the drain pipe 54.

[0024] like Figure 4 As shown, the two water collection boxes 51 and the two drain pipes 54 at the front and rear ends of the two drain pipes 54 away from the water collection box 51 are all fixedly connected to the drain pipes 541, and the bottom ends of the four drain pipes 541 are fixedly connected to the water supply pipes 542.

[0025] The water discharged through the drain pipe 54 will flow to the drain pipe 541 and then be collected into the water supply pipe 542 and discharged outside the tower for purification and reuse, which is beneficial to the water balance of the absorption tower.

[0026] The working principle of this water-collecting high-efficiency demister will be explained in detail below.

[0027] like Figure 1-4As shown, the water droplets generated by the demister body 1 can flow under gravity to the guide plates 21 on the opposite side of the fixed hanging plates 2 fixed to the outer wall of the side support plates 11. The water droplets are concentrated and flow into the inner cavity of the water collection box 51 by the inverted V-shaped guide plates 21 and the water guide grooves 22 opened on their outer walls. This prevents the flue gas below from blowing the falling droplets back, thereby accelerating the drainage and enhancing the demisting efficiency. The water collection box 51 is stably installed on the outer wall of the connecting rod 4 by the fixing slots 53 opened on the mounting plate 52 and is suspended below the guide plates 21. The water that drips into the water collection box 51 can be concentrated and flow to the drain hanging pipe 541 through the drain pipe 541, and then be concentrated and discharged into the water supply pipe 542 to be discharged outside the tower for purification and reuse, which is beneficial to the water balance of the absorption tower.

[0028] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A water-collecting type high-efficiency demister, comprising a demister body (1), characterized in that: Side support plates (11) are fixedly installed at both ends of the demister body (1). Fixed hanging plates (2) are fixedly installed on the side of the two side support plates (11) away from the demister body (1). The two fixed hanging plates (2) are provided with through holes (3) that pass through the left and right sides. A connecting rod (4) is provided through the inner side of the two through holes (3). Water collection mechanisms (5) are provided on the left and right sides below the connecting rod (4). Inverted octagonal guide plates (21) are fixedly installed on the opposite sides of the two fixed hanging plates (2). Several water guide grooves (22) are provided on the top of the guide plates (21). The guide plates (21) on the left and right sides are located on the bottom left and right sides of the demister body (1).

2. The water-collecting high-efficiency demister according to claim 1, characterized in that: Both water collection mechanisms (5) include a water collection box (51), and an installation plate (52) is fixedly installed on the top of the two water collection boxes (51). The front side of the two installation plates (52) is provided with a left-right through fixing slot (53), and the two fixing slots (53) are engaged with the connecting rod (4).

3. The water-collecting high-efficiency demister according to claim 2, characterized in that: The two water collection boxes (51) are located below the two inverted octagonal guide plates (21), and the front and rear sides of the two water collection boxes (51) are fixedly connected with drain pipes (54) that pass through their inner cavities.

4. A water-collecting high-efficiency demister according to claim 3, characterized in that: The two drain pipes (54) at the front and rear of the two water collection boxes (51) are fixedly connected to the end of the drain pipes (54) away from the water collection box (51), and the bottom ends of the four drain pipes (541) are fixedly connected to the water supply pipes (542).

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