Spraying assembly of flue gas desulfurization tower

Abstract

The utility model discloses a flue gas desulfurization tower spraying assembly which comprises a flue gas desulfurization tower body, lower communicating pipes are fixedly installed on the outer sides of a lower outer ring, a lower middle ring and a lower inner ring, and spraying heads are fixedly installed on the outer sides of an upper outer ring, an upper middle ring, an upper inner ring, a lower outer ring, a lower middle ring and a lower inner ring. The upper fixing frame is fixedly installed in the flue gas desulfurization tower body through bolts and cushion blocks, similarly, the lower fixing frame is fixed below the upper fixing frame and is symmetrically arranged, cleaning liquid is fed into the three-way pipe through the booster water pump, and then the liquid is controlled by the electromagnetic valve to selectively enter from the upper communicating pipe or the lower communicating pipe. Liquid is sprayed out of the spraying head through the annular pipe to form purification liquid, the spraying liquid can be sprayed upwards or downwards, the spraying range of the spraying liquid can be limited through the filter screen, the spraying liquid can be backwashed for cleaning, and the spraying assembly can achieve the uniform, high-efficiency and blockage reducing capacity.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization tower spraying technology, specifically, to a flue gas desulfurization tower spraying component. Background Technology

[0002] A flue gas desulfurization (FGD) tower is a device used to remove sulfur dioxide from flue gas emitted by coal-fired boilers or other coal-fired equipment. Sulfur dioxide produced by coal combustion is an ozone-depleting substance and a source of acid rain pollution, posing serious threats to the environment and health. The FGD tower removes sulfur dioxide by passing flue gas through it and allowing it to undergo a chemical reaction.

[0003] Patent CN 207786316 U discloses an anti-scouring spray device for a flue gas desulfurization tower. The device includes a desulfurization tower body with a mounting hole on one side. A main spray pipe passes through the mounting hole and is horizontally installed inside the tower body. A flange interface is located outside the mounting hole on the tower body. The front end face of the main spray pipe is fixedly connected to the flange interface, and the rear end face is welded to the inner wall of the tower body. A row of nozzles is arranged at the bottom of the main spray pipe, with the upper ends of the nozzles movably installed below the main spray pipe. This invention features a simple structure that effectively prevents the desulfurizing agent sprayed from the nozzles from scouring the inner wall of the desulfurization tower, extending the tower's service life and availability. Furthermore, the device also creates a disturbance effect on the flue gas flow, increasing desulfurization efficiency.

[0004] In the aforementioned flue gas desulfurization tower, the spraying components generate spray liquid that sprays downwards. During the spraying process, the spray liquid falls too quickly and cannot fully contact the sulfur-containing flue gas. Furthermore, the aforementioned spraying components do not have backwashing capabilities and cannot clean the spraying components. The above design suffers from problems such as uneven spraying, low efficiency, and easy clogging. These problems limit the desulfurization efficiency and the service life of the equipment.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a flue gas desulfurization tower spray assembly to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by this utility model is as follows:

[0008] A flue gas desulfurization tower spray assembly includes a flue gas desulfurization tower body. An upper fixed frame is installed on the upper inner side of the flue gas desulfurization tower body. An upper outer ring is fixedly installed on the outer edge of the bottom end of the upper fixed frame. An upper middle ring is provided on the inner side of the upper outer ring. An upper inner ring is provided on the inner side of the upper middle ring. An upper connecting pipe is fixedly installed on the outer sides of the upper outer ring, upper middle ring, and upper inner ring. A lower fixed frame is installed at the lower end of the upper fixed frame. A lower outer ring is fixedly installed on the top edge of the lower fixed frame. A lower middle ring is provided on the inner side of the lower outer ring. A lower inner ring is provided on the inner side of the lower middle ring. A lower connecting pipe is fixedly installed on the outer sides of the lower outer ring, lower middle ring, and lower inner ring. An upper filter screen is installed at the top of the upper fixed frame. A lower filter screen is installed at the bottom end of the lower fixed frame. Spray heads are fixedly installed on the outer sides of the upper outer ring, upper middle ring, upper inner ring, lower outer ring, lower middle ring, and lower inner ring.

[0009] As a further embodiment of this utility model, the upper fixing frame has an installation hole on the inner side of its edge, and the lower fixing frame has an installation hole on the inner side of its edge.

[0010] As a further embodiment of this utility model, the spray heads on the upper outer ring, upper middle ring, and upper inner ring are arranged symmetrically and alternately with the spray heads on the lower outer ring, lower middle ring, and lower inner ring.

[0011] As a further embodiment of this utility model, pads are installed on the outer sides of both the upper and lower fixing frames.

[0012] As a further embodiment of this utility model, a tee pipe is fixedly installed at the ends of the upper connecting pipe and the lower connecting pipe, and a booster water pump is installed at the front end of the tee pipe.

[0013] As a further embodiment of this utility model, a solenoid valve is installed on the three-way pipe, and two sets of solenoid valves are provided.

[0014] As a further embodiment of this utility model, the upper connecting pipe and the lower connecting pipe penetrate the body of the flue gas desulfurization tower.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model uses an upper outer ring, upper middle ring, upper inner ring, lower outer ring, lower middle ring, lower inner ring, spray head, three-way pipe, solenoid valve, and booster pump to fix the upper fixing frame in the flue gas desulfurization tower body with bolts and pads. Similarly, the lower fixing frame is fixed below the upper fixing frame and arranged symmetrically. The booster pump sends the cleaning liquid into the three-way pipe, and then the solenoid valve controls the liquid to enter from the upper connecting pipe or the lower connecting pipe. The liquid is sprayed out from the spray head through the ring pipe. The spray liquid can be sprayed upward or downward, and the filter screen can limit the spray range of the spray liquid and also allow the spray liquid to be backwashed for cleaning. This spray assembly can achieve uniform, high efficiency and reduce clogging. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a flue gas desulfurization tower spray assembly according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the upper and lower fixing frames of a flue gas desulfurization tower spray assembly according to an embodiment of the present utility model.

[0020] Figure 3 This is a schematic diagram of the installation structure of the lower outer ring, lower middle ring, and lower inner ring of a flue gas desulfurization tower spray assembly according to an embodiment of the present utility model.

[0021] Figure 4 This is a schematic diagram of the installation structure of a three-way pipe and a solenoid valve in a flue gas desulfurization tower spray assembly according to an embodiment of the present utility model.

[0022] Figure 5 This is a schematic diagram of the overall structure of a booster pump for a flue gas desulfurization tower spray assembly according to an embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Flue gas desulfurization tower body; 2. Upper fixed frame; 3. Upper outer ring; 4. Upper middle ring; 5. Upper inner ring; 6. Upper connecting pipe; 7. Lower fixed frame; 8. Lower outer ring; 9. Lower middle ring; 10. Lower inner ring; 11. Lower connecting pipe; 12. Spray head; 13. Pad block; 14. Upper filter screen; 15. Lower filter screen; 16. T-connector; 17. Solenoid valve; 18. Booster pump. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] According to an embodiment of the present invention, a flue gas desulfurization tower spray assembly is provided.

[0027] Please refer to the instruction manual appendix. Figure 1-5 According to an embodiment of the present invention, a flue gas desulfurization tower spray assembly includes a flue gas desulfurization tower body 1. An upper fixing frame 2 is installed on the upper inner side of the flue gas desulfurization tower body 1. An upper outer ring 3 is fixedly installed along the outer edge of the bottom end of the upper fixing frame 2. An upper middle ring 4 is provided on the inner side of the upper outer ring 3, and an upper inner ring 5 is provided on the inner side of the upper middle ring 4. An upper connecting pipe 6 is fixedly installed on the outer sides of the upper outer ring 3, the upper middle ring 4, and the upper inner ring 5. A lower fixing frame 7 is installed at the lower end of the upper fixing frame 2. A lower outer ring 8 is fixedly installed on the top edge of the 7. A lower middle ring 9 is provided on the inner side of the lower outer ring 8. A lower inner ring 10 is provided on the inner side of the lower middle ring 9. A lower connecting pipe 11 is fixedly installed on the outer side of the lower outer ring 8, the lower middle ring 9 and the lower inner ring 10. An upper filter screen 14 is installed on the top of the upper fixed frame 2. A lower filter screen 15 is installed on the bottom of the lower fixed frame 7. Spray heads 12 are fixedly installed on the outer side of the upper outer ring 3, the upper middle ring 4 and the upper inner ring 5, as well as the outer side of the lower outer ring 8, the lower middle ring 9 and the lower inner ring 10.

[0028] The upper fixing frame 2 is fixedly installed in the flue gas desulfurization tower body 1 with bolts through the pad 13. Similarly, the lower fixing frame 7 is fixedly installed in the flue gas desulfurization tower body 1 with bolts through the pad 13. The two are arranged symmetrically. A three-way pipe 16 is installed at the end of the upper connecting pipe 6 and the lower connecting pipe 11. A solenoid valve 17 is installed on the three-way pipe 16. The purified liquid is drawn into the pipeline by the booster water pump 18 and injected into the pipeline. Under the control of the solenoid valve 17, the purified liquid is sprayed upward and downward from the spray head 12, and the spray direction is repeatedly changed to realize the spray rinsing function. The upper filter screen 14 and the lower filter screen 15 set up ensure that the spray liquid is confined in a certain space instead of excessively dissipating, so that the flue gas desulfurization is sufficient and the spray head is not blocked.

[0029] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, the upper fixing frame 2 has an installation hole on the inner side of its edge, and the lower fixing frame 7 has an installation hole on the inner side of its edge.

[0030] This facilitates the installation of the upper fixing frame 2 and the lower fixing frame 7.

[0031] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, the spray heads 12 on the upper outer ring 3, upper middle ring 4 and upper inner ring 5 are arranged in an alternating symmetrical manner with the spray heads 12 on the lower outer ring 8, lower middle ring 9 and lower inner ring 10.

[0032] This allows the purification liquid to be sprayed upwards or downwards.

[0033] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, pads 13 are installed on the outer sides of both the upper fixing frame 2 and the lower fixing frame 7.

[0034] The pad 13 can fill the gap between the fixing frame and the inner wall of the desulfurization tower.

[0035] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, a three-way pipe 16 is fixedly installed at the ends of the upper connecting pipe 6 and the lower connecting pipe 11, and a booster water pump 18 is installed at the front end of the three-way pipe 16.

[0036] The booster pump 18 allows liquid to flow through the tee pipe 16.

[0037] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, a solenoid valve 17 is installed on the three-way pipe 16, and the solenoid valve 17 is provided in two sets.

[0038] Solenoid valve 17 can control the flow of liquid in the upward connecting pipe 6 or the downward connecting pipe 11.

[0039] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, the upper connecting pipe 6 and the lower connecting pipe 11 penetrate the flue gas desulfurization tower body 1.

[0040] In use, the upper fixing frame 2 is fixedly installed in the flue gas desulfurization tower body 1 with bolts through the pad 13. Similarly, the lower fixing frame 7 is fixedly installed in the flue gas desulfurization tower body 1 with bolts through the pad 13. The two are arranged symmetrically. A three-way pipe 16 is installed at the end of the upper connecting pipe 6 and the lower connecting pipe 11. A solenoid valve 17 is installed on the three-way pipe 16. The purified liquid is drawn into the pipeline by the booster water pump 18. Under the control of the solenoid valve 17, the purified liquid is sprayed upward and downward from the spray head 12, and the spray direction is repeatedly changed to realize the spray rinsing function. The upper filter screen 14 and the lower filter screen 15 set up ensure that the spray liquid is confined in a certain space instead of excessively dissipating, so that the flue gas desulfurization is sufficient and the spray head is not blocked.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A flue gas desulfurization tower spray assembly, comprising a flue gas desulfurization tower body (1), characterized in that: An upper fixed frame (2) is installed on the upper inner side of the flue gas desulfurization tower body (1). An upper outer ring (3) is fixedly installed on the outer edge of the bottom end of the upper fixed frame (2). An upper middle ring (4) is provided on the inner side of the upper outer ring (3). An upper inner ring (5) is provided on the inner side of the upper middle ring (4). An upper connecting pipe (6) is fixedly installed on the outer side of the upper outer ring (3), the upper middle ring (4), and the upper inner ring (5). A lower fixed frame (7) is installed at the lower end of the upper fixed frame (2). The lower fixed frame (7) is fixedly installed with a lower outer ring (8) at the top edge, a lower middle ring (9) is provided on the inner side of the lower outer ring (8), a lower inner ring (10) is provided on the inner side of the lower middle ring (9), a lower connecting pipe (11) is fixedly installed on the outer side of the lower outer ring (8), the lower middle ring (9) and the lower inner ring (10), an upper filter screen (14) is installed at the top of the upper fixed frame (2), and a lower filter screen (15) is installed at the bottom of the lower fixed frame (7); Spray heads (12) are fixedly installed on the outer sides of the upper outer ring (3), upper middle ring (4), upper inner ring (5), lower outer ring (8), lower middle ring (9), and lower inner ring (10).

2. The flue gas desulfurization tower spray assembly according to claim 1, characterized in that: The upper fixing frame (2) has an installation hole on the inner side of its edge, and the lower fixing frame (7) has an installation hole on the inner side of its edge.

3. The flue gas desulfurization tower spray assembly according to claim 1, characterized in that: The spray heads (12) on the upper outer ring (3), upper middle ring (4) and upper inner ring (5) are arranged symmetrically with the spray heads (12) on the lower outer ring (8), lower middle ring (9) and lower inner ring (10).

4. The flue gas desulfurization tower spray assembly according to claim 1, characterized in that: Pads (13) are installed on the outer sides of both the upper fixing frame (2) and the lower fixing frame (7).

5. The flue gas desulfurization tower spray assembly according to claim 1, characterized in that: A three-way pipe (16) is fixedly installed at the ends of the upper connecting pipe (6) and the lower connecting pipe (11), and a booster water pump (18) is installed at the front end of the three-way pipe (16).

6. The flue gas desulfurization tower spray assembly according to claim 5, characterized in that: A solenoid valve (17) is installed on the three-way pipe (16), and there are two sets of solenoid valves (17).

7. The flue gas desulfurization tower spray assembly according to claim 1, characterized in that: The upper connecting pipe (6) and the lower connecting pipe (11) penetrate the body (1) of the flue gas desulfurization tower.

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