Flue gas desulfurization pipeline

Abstract

The utility model discloses a flue gas desulfurization pipeline which is mainly characterized in that a turbine shell and a turbine disc structure are integrated so as to realize uniform injection of desulfurization liquid and full mixing of the desulfurization liquid and flue gas, so that the desulfurization efficiency is improved. In the design, the turbine blades on the turbine disc are driven by desulfurization liquid to rotate, and then the coaxially-arranged rotating shaft is driven to rotate. And the scraping rod and the scraping blade which are fixedly connected to the rotating shaft can be used for removing scale and sediments on the inner wall of the desulfurization pipeline body, so that the risk of pipeline blockage is reduced, and long-term stable operation of equipment is ensured. In addition, due to the design of the conical disc on the rotating shaft, the desulfurization liquid is splashed away in a rotating mode, and the mixing effect of the desulfurization liquid and the gas is further enhanced. The utility model further provides various preferable designs including a supporting rod, a mounting seat, an observation hole, a lifting lug, a connecting flange and the like, so that the structural stability and convenience of the desulfurization pipeline are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization equipment, in particular to a flue gas desulfurization pipeline. Background Art

[0002] Flue gas desulfurization pipeline is a pipeline used in the desulfurization system to transport desulfurization liquid. Because the solution containing acid and alkali substances is transported in the desulfurization system, the desulfurization pipeline must have anti-corrosion, wear resistance and temperature resistance to ensure the normal operation of the desulfurization system. Commonly used desulfurization pipeline materials include stainless steel, high alloy composite steel plate, glass flakes and rubber lining, among which FRP desulfurization pipeline is widely used in petroleum, chemical industry, electric power, metallurgy, medicine and other fields due to its excellent corrosion resistance and high temperature resistance. There are many flue gas desulfurization technologies, including wet method, semi-dry method, dry method, etc. Among them, wet flue gas desulfurization technology is the most mature and has been applied on a large scale in industry.

[0003] In the prior art, the publication number is "CN214462730U"

[0004] However, the existing technology still has major deficiencies, such as:

[0005] In the prior art, a flue gas desulfurization pipeline with a publication number of "CN212188450U" comprises a pipeline for conveying desulfurization liquid, a first fixed protrusion is arranged inside the upper end of the pipeline for conveying desulfurization liquid, a curved desulfurization liquid pipeline is arranged on the upper end of the pipeline for conveying desulfurization liquid through the first fixed protrusion, a first fixed groove matching the outer dimensions of the first fixed protrusion is fixedly arranged on the lower end of the curved desulfurization liquid pipeline, a telescopic part is arranged on the side wall of the curved desulfurization liquid pipeline, a plurality of smoke baffles are arranged on the inner side walls of the pipeline for conveying desulfurization liquid, a flue gas inlet is arranged on the lower end of the pipeline for conveying desulfurization liquid, a second fixed groove is arranged inside the upper end of the curved desulfurization liquid pipeline, an output desulfurization liquid pipeline is arranged on the upper end of the curved desulfurization liquid pipeline through the second fixed groove, a second fixed protrusion matching the outer dimensions of the second fixed groove is fixedly arranged on the lower end of the output desulfurization liquid pipeline, and a flue gas outlet is arranged on the upper end of the output desulfurization liquid pipeline. The utility model has reasonable structural design and can effectively prolong the service life of the desulfurization liquid pipeline.

[0006] However, the existing technology still has major deficiencies, such as:

[0007] Although the flue gas desulfurization pipelines in the prior art have achieved certain results, there are still some deficiencies in the actual operation process. Especially during the desulfurization process, impurities in the gas often adhere to the side walls of the desulfurization liquid pipelines, which not only affects the internal cleanliness of the desulfurization liquid pipelines, but may also cause problems such as blockage and corrosion of the desulfurization liquid pipelines, thereby having an adverse impact on the normal operation of the desulfurization liquid pipelines. Therefore, how to effectively prevent impurities from adhering and improve the cleanliness of the desulfurization liquid pipelines has become an important direction for the technical improvement of current flue gas desulfurization pipelines. Summary of the Invention

[0008] The purpose of the present invention is to provide a flue gas desulfurization pipeline to solve the problems raised in the above background technology.

[0009] To achieve the above purpose, the present invention provides the following technical solutions:

[0010] A flue gas desulfurization pipeline includes a desulfurization pipeline body. The desulfurization pipeline body includes an air inlet and an exhaust outlet. A bracket is fixedly arranged in the desulfurization pipeline body. A turbine housing is fixedly arranged on the bracket. An inlet pipe and a drain pipe are fixedly arranged on the turbine housing. The position of the inlet pipe is fixedly communicated with an inlet liquid pipe, and the position of the drain pipe is fixedly communicated with a drain liquid pipe. The drain liquid pipe is coaxially arranged with the desulfurization pipeline body. A turbine disc is rotatably arranged in the turbine housing. A number of turbine blades are fixedly arranged on the turbine disc. When the liquid passes through the turbine housing, it will drive the turbine blades to rotate;

[0011] A rotating shaft is fixedly arranged on the turbine disc. The rotating shaft is coaxially arranged with the desulfurization pipeline body. When the turbine disc rotates, the rotating shaft rotates synchronously;

[0012] A connecting rod is fixedly arranged on the rotating shaft. A scraping rod is fixedly arranged on the connecting rod. A scraping blade is fixedly arranged on the scraping rod. The scraping blade is attached to the inner wall of the desulfurization pipeline body;

[0013] A conical disc is fixedly arranged at the position of the outlet of the drain liquid pipe on the rotating shaft. The conical disc does not contact the outlet of the drain liquid pipe. When the desulfurization liquid sprays out from the drain liquid pipe, the desulfurization liquid will impact the conical disc, and the desulfurization liquid will thus spray out in an umbrella shape and mix with the gas passing through the desulfurization pipeline body to achieve the desulfurization effect.

[0014] Preferably, a number of support rods are fixedly arranged in the desulfurization pipeline body. Bearings are fixedly arranged on the support rods. The rotating shaft is rotatably arranged in the bearings.

[0015] Preferably, a number of mounting seats are fixedly arranged on the outer wall of the desulfurization pipeline body. Mounting holes are provided in the mounting seats.

[0016] Preferably, an observation hole is provided on the side wall of the desulfurization pipeline body.

[0017] Preferably, an observation tube is fixedly provided at the position of the observation hole, and a detachable cover plate is fixedly provided on the observation tube.

[0018] Preferably, a handle is fixedly provided on the cover plate.

[0019] Preferably, a lifting lug is fixedly provided on the outer wall of the desulfurization pipeline body, and a lifting hole is opened on the lifting lug.

[0020] Preferably, the desulfurization pipeline body is fixedly provided with connecting flanges at the positions of the air inlet and the exhaust port.

[0021] Preferably, a sealing gasket is fixedly provided on the connecting flange.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. Through the design of the turbine housing and turbine disc, the desulfurization liquid can be evenly sprayed in and fully mixed with the flue gas, which improves the desulfurization efficiency.

[0024] 2. The design of the scraper rod and scraper blade can remove the scale and sediment on the inner wall, reducing the risk of pipe blockage and ensuring long-term stable operation.

[0025] 3. Since the conical disk is also rotating, the desulfurized liquid can also be splashed in a rotating manner, achieving a more complete mixing of the desulfurized liquid and the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of the overall device of the utility model;

[0027] Figure 2 This is a schematic diagram of the overall sectional three-dimensional structure of the utility model;

[0028] Figure 3 This is a schematic diagram of the three-dimensional structure of the scraper blade of the utility model;

[0029] Figure 4 This is a diagram showing the liquid of the utility model being sprayed in an umbrella shape on a conical disk.

[0030] In the figure: 1, desulfurization pipeline body; 2, air inlet; 3, exhaust outlet; 4, support; 5, turbine housing; 6, liquid inlet; 7, liquid outlet; 8, liquid inlet pipe; 9, liquid outlet pipe; 10, turbine disk; 11, turbine blades; 12, rotating shaft; 13, connecting rod; 14, scraping rod; 15, scraping blade; 16, conical disk; 17, support rod; 18, bearing; 19, mounting seat; 20, mounting hole; 21, observation hole; 22, observation pipe; 23, cover plate; 24, handle; 25, lifting ear; 26, lifting hole; 27, connecting flange; 28, gasket. Specific implementation manner

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1-4 , the present invention provides a technical solution:

[0033] A flue gas desulfurization pipeline mainly includes a desulfurization pipeline body 1. The desulfurization pipeline body 1 is designed as a long cylindrical structure. One end thereof is provided with an air inlet 2 for accessing the flue gas to be desulfurized, and the other end is provided with an exhaust outlet 3 for discharging the clean flue gas after desulfurization treatment. Inside the desulfurization pipeline body 1, a plurality of supports 4 are fixedly installed, and the function of these supports 4 is to provide stable support for the subsequent turbine housing 5.

[0034] The turbine housing 5 is firmly fixed on the support 4, and its position is in the central area of the desulfurization pipeline body 1. The turbine housing 5 is provided with a liquid inlet 6 and a liquid outlet 7, and these two ports are respectively used for the entry and discharge of the desulfurization liquid. The liquid inlet 6 is connected to an external desulfurization liquid supply system through a liquid inlet pipe 8, and the liquid outlet 7 is connected to the internal space of the desulfurization pipeline body 1 through a liquid outlet pipe 9, and the liquid outlet pipe 9 is coaxially arranged with the desulfurization pipeline body 1 to ensure that the desulfurization liquid can be evenly sprayed into the desulfurization pipeline body 1.

[0035] Inside the turbine housing 5, a turbine disk 10 is rotatably arranged. A number of turbine blades 11 are fixedly installed on the turbine disk 10. The design of these blades enables the turbine blades 11 to rotate when the desulfurization liquid passes through the turbine housing 5, thereby generating power.

[0036] A rotating shaft 12 is fixedly connected to the central position of the turbine disc 10, and this rotating shaft 12 is coaxially arranged with the desulfurization pipeline body 1. When the turbine disc 10 rotates driven by the desulfurization liquid, the rotating shaft 12 will also rotate synchronously.

[0037] On the rotating shaft 12, one or more connecting rods 13 are fixedly connected, and these connecting rods 13 extend towards the inner wall direction of the desulfurization pipeline body 1. At the end of each connecting rod 13, a scraping rod 14 is fixedly installed, and scraping blades 15 are provided on the scraping rod 14. These scraping blades 15 are in close contact with the inner wall of the desulfurization pipeline body 1. When the rotating shaft 12 rotates, the scraping blades 15 will scrape along the inner wall of the desulfurization pipeline body 1, thereby removing the scale and sediments on the inner wall.

[0038] At the position of the rotating shaft 12 where it is located at the outlet of the drain pipe 9, a conical disc 16 is also fixedly installed. The design of this conical disc 16 is such that it does not directly contact the outlet of the drain pipe 9, but forms a certain gap. When the desulfurization liquid sprays out from the drain pipe 9, it will impact on the conical disc 16 and then spread out in an umbrella shape, fully mixing with the flue gas passing through the desulfurization pipeline body 1, thereby achieving the desulfurization effect.

[0039] In order to further enhance the structural stability and support effect of the desulfurization pipeline body 1, a number of support rods 17 are fixedly installed inside the desulfurization pipeline body 1. Bearings 18 are provided on these support rods 17, and the rotating shaft 12 is rotatably arranged in these bearings 18, thereby ensuring that the rotation of the rotating shaft 12 is smoother and more stable.

[0040] In order to facilitate the installation and fixation of this flue gas desulfurization pipeline, a number of mounting seats 19 are also provided on the outer wall of the desulfurization pipeline body 1. Each mounting seat 19 is provided with a mounting hole 20 for connecting to an external support 4 or wall.

[0041] In addition, one or more observation holes 21 are opened on the side wall of the desulfurization pipeline body 1. These observation holes 21 allow operators to directly observe the internal operation status and desulfurization effect without disassembling the desulfurization pipeline body 1. In order to protect the observation holes 21 and prevent dust and sundries from entering, an observation pipe 22 is fixedly installed at the position of each observation hole 21, and a detachable cover plate 23 is provided on the observation pipe 22. A handle 24 is also provided on the cover plate 23 to facilitate the opening and closing by the operator.

[0042] In order to facilitate the hoisting and handling of this flue gas desulfurization pipeline, hoisting ears 25 are also fixedly installed on the outer wall of the desulfurization pipeline body 1, and hoisting holes 26 are opened on the hoisting ears 25. In this way, the entire flue gas desulfurization pipeline can be easily lifted and moved using hoisting equipment.

[0043] Finally, in order to enhance the connection sealing performance between the desulfurization pipeline body 1 and external devices, connection flanges 27 are fixedly installed at the positions of the air inlet 2 and the exhaust port 3 of the desulfurization pipeline body 1. Sealing gaskets 28 are provided on these connection flanges 27. When connected to external devices, the sealing performance of the connection can be ensured, preventing the leakage of flue gas and desulfurization liquid.

[0044] Working principle: During the use of the present utility model, the desulfurization liquid enters the turbine housing 5 through the liquid inlet pipe 8, and then passes through the turbine disk 10 and the turbine blades 11. When the desulfurization liquid flows through the turbine blades 11, it will drive the turbine blades 11 to rotate, and then drive the rotating shaft 12 to rotate.

[0045] As the rotating shaft 12 rotates, the connecting rod 13 connected to the rotating shaft 12 will also rotate. A scraping rod 14 is fixed at the end of the connecting rod 13, and scraping blades 15 are provided on the scraping rod 14. These scraping blades 15 are in close contact with the inner wall of the desulfurization pipeline body 1. When the rotating shaft 12 rotates, the scraping blades 15 will scrape along the inner wall to remove the scale and sediment on the inner wall.

[0046] The desulfurization liquid sprays out from the drain pipe 9, impacts on the conical disk 16, and then spreads out in an umbrella shape, fully mixing with the flue gas passing through the desulfurization pipeline body 1, thereby achieving the desulfurization effect. At the same time, since the conical disk 16 is also rotating, the desulfurization liquid can also be splashed out in a rotating manner, realizing more thorough mixing of the desulfurization liquid and the gas.

[0047] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A flue gas desulfurization pipeline, comprising a desulfurization pipeline body (1), characterized in that: The desulfurization pipeline body (1) comprises an air inlet (2) and an air outlet (3); a bracket (4) is fixedly arranged in the desulfurization pipeline body (1); a turbine housing (5) is fixedly arranged on the bracket (4); a liquid inlet (6) and a liquid outlet (7) are fixedly arranged on the turbine housing (5); a liquid inlet pipe (8) is fixedly connected to the position of the liquid inlet (6); a liquid outlet pipe (9) is fixedly connected to the position of the liquid outlet (7); the liquid outlet pipe (9) is coaxially arranged with the desulfurization pipeline body (1); a turbine disk (10) is rotatably arranged in the turbine housing (5); a plurality of turbine blades (11) are fixedly arranged on the turbine disk (10); when liquid passes through the turbine inlet housing, the turbine blades (11) are driven to rotate; A rotating shaft (12) is fixedly arranged on the turbine disc (10), and the rotating shaft (12) is coaxially arranged with the desulfurization pipeline body (1). When the turbine disc (10) rotates, the rotating shaft (12) rotates synchronously; A connecting rod (13) is fixedly arranged on the rotating shaft (12), a scraping rod (14) is fixedly arranged on the connecting rod (13), a scraping blade (15) is fixedly arranged on the scraping rod (14), and the scraping blade (15) is in contact with the inner wall of the desulfurization pipeline body (1); A conical disk (16) is fixedly provided at the position of the rotating shaft (12) at the outlet of the liquid discharge pipe (9); the conical disk (16) does not contact the outlet of the liquid discharge pipe (9); when the desulfurized liquid is ejected from the liquid discharge pipe (9), the desulfurized liquid impacts the conical disk (16), and the desulfurized liquid is ejected in an umbrella shape and mixed with the gas passing through the desulfurized pipe body (1), thereby achieving a desulfurization effect.

2. A flue gas desulfurization pipeline according to claim 1, characterized in that: A plurality of support rods (17) are fixedly arranged in the desulfurization pipeline body (1), bearings (18) are fixedly arranged on the support rods (17), and the rotating shaft (12) is rotatably arranged in the bearings (18).

3. A flue gas desulfurization pipeline according to claim 2, characterized in that: A plurality of mounting seats (19) are fixedly arranged on the outer wall of the desulfurization pipeline body (1), and mounting holes (20) are provided on the mounting seats (19).

4. A flue gas desulfurization pipeline according to claim 3, characterized in that: An observation hole (21) is provided on the side wall of the desulfurization pipeline body (1).

5. A flue gas desulfurization pipeline according to claim 4, characterized in that: An observation tube (22) is fixedly provided at the position of the observation hole (21), and a detachable cover plate (23) is fixedly provided on the observation tube (22).

6. A flue gas desulfurization pipeline according to claim 5, characterized in that: A handle (24) is fixedly provided on the cover plate (23).

7. A flue gas desulfurization pipeline according to claim 2, characterized in that: A lifting lug (25) is fixedly provided on the outer wall of the desulfurization pipeline body (1), and a lifting hole (26) is provided on the lifting lug (25).

8. The flue gas desulfurization pipeline according to claim 1, characterized in that: The desulfurization pipeline body (1) is fixedly provided with connecting flanges (27) at the positions of the air inlet (2) and the air outlet (3).

9. A flue gas desulfurization pipeline according to claim 8, characterized in that: A sealing gasket (28) is fixedly disposed on the connecting flange (27).

Images