Anti-blocking nozzle for spray layer of desulfurization tower of thermal power plant

Abstract

The utility model discloses a power plant desulfurizing tower spray layer anti -blocking nozzle, including nozzle shell, the bottom end of nozzle shell is connected with the anti -blocking shell of screw thread, the inner wall of anti -blocking shell is opened with the upper turning groove, the inner bottom wall and the inner top wall of upper turning groove all are fixedly connected with first rail, the outer surface rotation of first rail is connected with the upper net seat, the inner wall of nozzle shell is opened with lower turning groove, this power plant desulfurizing tower spray layer anti -blocking nozzle, during the use of spray tower, start servo motor, make the rotation of the shaft, the upper gear and lower gear on the shaft rotate, the upper gear is engaged with the upper tooth ring and drives the upper net seat to rotate in the first rail, the lower gear is engaged with the middle transfer gear and drives its rotation, the middle transfer gear and lower tooth ring are engaged and drive the lower net seat to rotate in the second rail, and the rotation direction of upper net seat and lower net seat is opposite, can roll open the impurity formed on the inner scraping net and outer scraping net in the rotation process, guarantees the unobstructed of nozzle mouth.

Description

Technical Field

[0001] This utility model relates to the technical field of nozzles for the spray layer of desulfurization towers in thermal power plants, and in particular to an anti-clogging nozzle for the spray layer of desulfurization towers in thermal power plants. Background Technology

[0002] A thermal power plant, or simply a thermal power plant, is a factory that uses combustible materials (such as coal) as fuel to produce electricity. Its basic production process is as follows: when the fuel is burned, it heats water to generate steam, which converts the chemical energy of the fuel into heat energy. The steam pressure drives the turbine to rotate, and the heat energy is converted into mechanical energy. Then the turbine drives the generator to rotate, which converts the mechanical energy into electrical energy. A desulfurization tower is a tower-type device for desulfurizing industrial waste gas. Desulfurization towers were initially the most widely used due to their construction using granite. They utilize the principle of water film desulfurization and dust removal and are also known as granite water film desulfurization and dust removal devices or marble water film desulfurization and dust removal devices.

[0003] In existing desulfurization towers, the nozzles are in an alkaline environment for a long time. The accumulation of alkaline substances causes blockage at the nozzle outlet. The blockage is usually solved by regularly cleaning the spray pipes and replacing the blocked nozzles. However, this method is inefficient and costly. Utility Model Content

[0004] The main purpose of this utility model is to provide an anti-clogging nozzle for the spray layer of the desulfurization tower in a thermal power plant, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A nozzle for preventing clogging in the spray layer of a desulfurization tower in a thermal power plant includes a nozzle housing. An anti-clogging shell is threaded to the bottom end of the nozzle housing. An upper rotating groove is formed on the inner wall of the anti-clogging shell. A first rotating rail is fixedly connected to the inner bottom and top walls of the upper rotating groove. A mesh support is rotatably connected to the outer surface of the first rotating rail. A lower rotating groove is formed on the inner wall of the nozzle housing. A second rotating rail is fixedly connected to the inner bottom and top walls of the lower rotating groove. A lower mesh support is rotatably connected to the outer surface of the second rotating rail. An inner scraping mesh is provided on the lower surface of the mesh support, and an outer scraping mesh is provided on the lower surface of the lower mesh support.

[0007] In order to provide power for the rotation of the shaft, as an anti-clogging nozzle for the spray layer of the desulfurization tower in a thermal power plant, a fixing plate is fixedly connected to the outer surface of the anti-clogging shell, and a servo motor is fixedly connected to the upper surface of the fixing plate.

[0008] In order to achieve the effect of driving the upper gear to rotate, as an anti-clogging nozzle for the spray layer of the desulfurization tower in a thermal power plant, the output end of the servo motor is fixedly connected to a rotating shaft, the outer surface of the rotating shaft is fixedly connected to an upper gear, and the outer surface of the mesh base is provided with an upper gear ring, and the upper gear and the upper gear ring are meshed.

[0009] In order to achieve the effect of driving the lower screen base to rotate, as an anti-clogging nozzle for the spray layer of the desulfurization tower in a thermal power plant, a lower gear is fixedly connected to the outer surface of the rotating shaft, and a lower gear ring is provided on the outer surface of the lower screen base.

[0010] In order to achieve the effect of driving the lower gear ring to rotate, as an anti-clogging nozzle for the spray layer of the desulfurization tower in a thermal power plant according to this utility model, a convex plate is fixedly connected to the outer surface of the anti-clogging shell, a rotating rod is fixedly connected to the lower surface of the convex plate, and a central rotating gear is rotatably connected to the outer surface of the rotating rod. The lower gear and the central rotating gear are meshed, and the central rotating gear and the lower gear ring are meshed.

[0011] In order to achieve the effect of assembling the nozzle shell and the anti-clogging shell together, as an anti-clogging nozzle for the spray layer of the desulfurization tower in a thermal power plant according to this utility model, the bottom outer surface of the nozzle shell is provided with external threads, and the top of the inner wall of the anti-clogging shell is provided with internal threads.

[0012] In order to achieve the effect of sealing the top and bottom of the fixed plate, as an anti-clogging nozzle for the spray layer of the desulfurization tower in a thermal power plant according to this utility model, an upper sealing shell is fixedly connected to the upper surface of the fixed plate, a lower sealing shell is fixedly connected to the lower surface of the fixed plate, and a wire groove shell is fixedly connected to the upper surface of the upper sealing shell.

[0013] To facilitate the installation of the nozzle into the spray system, the nozzle of this utility model, which is an anti-clogging nozzle for the spray layer of a desulfurization tower in a thermal power plant, has a first mounting thread on the inner wall of one end of the nozzle housing and a second mounting thread on the inner wall of the other end of the nozzle housing.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The anti-clogging nozzles of the desulfurization tower spray layer in this thermal power plant, through the setting of nozzle shell, anti-clogging shell, upper rotating groove, first rotating rail, mesh seat, lower rotating groove, second rotating rail, lower mesh seat, inner scraper and outer scraper, during the use of the spray tower, the servo motor is started to make the rotating shaft rotate. The upper gear and lower gear on the rotating shaft rotate accordingly. The upper gear meshes with the upper gear ring to drive the mesh seat to rotate in the first rotating rail. The lower gear meshes with the middle rotating gear to drive it to rotate. The middle rotating gear meshes with the lower gear ring to drive the lower mesh seat to rotate in the second rotating rail. The mesh seat and the lower mesh seat rotate in opposite directions. During the rotation, the impurities formed on the inner scraper and outer scraper can be crushed to ensure the unobstructed flow of the nozzle orifice. This prevents the nozzle orifice from being blocked by the accumulation of alkaline substances after scaling. It can be cleaned in real time, improving cleaning efficiency.

[0016] 2. The anti-clogging nozzles of the desulfurization tower spray layer in this thermal power plant are designed with a fixed plate, an upper sealing shell, a lower sealing shell, and a grooved shell. The fixed plate has an upper and a lower sealing shell. The upper sealing shell protects the servo motor, and the lower sealing shell protects the gear transmission assembly, preventing impurities in the tower from mixing into the transmission assembly. The nozzle shell and the anti-clogging shell are connected by external and internal threads. This way, if either the nozzle shell or the anti-clogging shell malfunctions, only one part needs to be replaced, reducing replacement costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the anti-clogging nozzle structure of the spray layer in a desulfurization tower of a thermal power plant, according to an embodiment of the present invention.

[0018] Figure 2 This is an isometric structural diagram of an anti-clogging nozzle in the spray layer of a desulfurization tower in a thermal power plant, viewed from below, according to an embodiment of the present invention.

[0019] Figure 3 This is a frontal cross-sectional view of an anti-clogging nozzle in the spray layer of a desulfurization tower in a thermal power plant, according to an embodiment of this utility model.

[0020] Figure 4 This is a right-side cross-sectional view of an anti-clogging nozzle in the spray layer of a desulfurization tower in a thermal power plant, according to an embodiment of this utility model.

[0021] Figure 5 This is an isometric structural diagram of the nozzle shell in an anti-clogging nozzle of a desulfurization tower spray layer in a thermal power plant, according to an embodiment of the present invention.

[0022] Figure 6 This is an isometric structural diagram of the anti-clogging shell in the anti-clogging nozzle of the spray layer of a desulfurization tower in a thermal power plant, according to an embodiment of the present invention.

[0023] Figure 7 This is an isometric structural diagram of the anti-clogging shell in the anti-clogging nozzle of the spray layer of a desulfurization tower in a thermal power plant, according to an embodiment of the present invention.

[0024] Figure 8 This is an isometric structural diagram of the lower mesh seat of the anti-clogging nozzle in the spray layer of a desulfurization tower in a thermal power plant, according to an embodiment of the present invention.

[0025] In the diagram: 1. Nozzle housing; 2. Anti-clogging housing; 3. Upper rotating groove; 4. First rotating rail; 5. Net base; 6. Lower rotating groove; 7. Second rotating rail; 8. Lower net base; 9. Inner scraper net; 10. Outer scraper net; 11. Fixing plate; 12. Servo motor; 13. Rotating shaft; 14. Upper gear; 15. Upper gear ring; 16. Lower gear; 17. Intermediate rotating gear; 18. Lower gear ring; 19. Protruding plate; 20. Rotating rod; 21. External thread; 22. Internal thread; 23. Upper sealing housing; 24. Lower sealing housing; 25. Groove housing; 26. First mounting thread; 27. Second mounting thread. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example

[0028] like Figure 1-8 As shown, an anti-clogging nozzle for the spray layer of a desulfurization tower in a thermal power plant includes a nozzle housing 1. An anti-clogging shell 2 is threadedly connected to the bottom end of the nozzle housing 1. An upper rotating groove 3 is provided on the inner wall of the anti-clogging shell 2. A first rotating rail 4 is fixedly connected to the inner bottom wall and the inner top wall of the upper rotating groove 3. A mesh seat 5 is rotatably connected to the outer surface of the first rotating rail 4. A lower rotating groove 6 is provided on the inner wall of the nozzle housing 1. A second rotating rail 7 is fixedly connected to the inner bottom wall and the inner top wall of the lower rotating groove 6. A lower mesh seat 8 is rotatably connected to the outer surface of the second rotating rail 7. An inner scraper mesh 9 is provided on the lower surface of the mesh seat 5, and an outer scraper mesh 10 is provided on the lower surface of the lower mesh seat 8.

[0029] In practical use, the nozzle housing 1, anti-clogging housing 2, upper rotating groove 3, first rotating rail 4, mesh support 5, lower rotating groove 6, second rotating rail 7, lower mesh support 8, inner scraper mesh 9, and outer scraper mesh 10 are arranged as follows: The upper rotating groove 3 and lower rotating groove 6 in the anti-clogging housing 2 have the same diameter but different heights; similarly, the first rotating rail 4 in the upper rotating groove 3 and the second rotating rail 7 in the lower rotating groove 6 also have different heights. The mesh support 5 is installed between the first rotating rails 4, and the lower mesh support 8 is installed between the second rotating rails 7. Only the inner scraper mesh 9 and outer scraper mesh 10 on the lower surfaces of the mesh support 5 and lower mesh support 8 are in contact. When the nozzle is used, after it is installed in the desulfurization tower spray layer, it is activated during the operation of the spray tower. The servo motor 12 drives the rotating shaft 13 to rotate, causing the upper gear 14 and lower gear 16 on the rotating shaft 13 to rotate accordingly. The upper gear 14 meshes with the upper gear ring 15, driving the mesh holder 5 to rotate in the first rotating rail 4. The lower gear 16 meshes with the intermediate rotating gear 17, driving it to rotate. The intermediate rotating gear 17 meshes with the lower gear ring 18, driving the lower mesh holder 8 to rotate in the second rotating rail 7. The mesh holder 5 and the lower mesh holder 8 rotate in opposite directions. During the rotation, the impurities formed on the inner scraper 9 and the outer scraper 10 can be crushed to ensure the unobstructed flow of the nozzle orifice. This prevents the nozzle orifice from being blocked by alkaline substances that accumulate and cause blockage at the outlet. Real-time cleaning is possible, improving cleaning efficiency.

[0030] In this embodiment, a fixing plate 11 is fixedly connected to the outer surface of the anti-blocking shell 2, and a servo motor 12 is fixedly connected to the upper surface of the fixing plate 11.

[0031] In practical use, the servo motor 12 is configured to provide power for the rotation of the shaft 13.

[0032] In this embodiment, the output end of the servo motor 12 is fixedly connected to a rotating shaft 13, the outer surface of the rotating shaft 13 is fixedly connected to an upper gear 14, and the outer surface of the mesh base 5 is provided with an upper gear ring 15, and the upper gear 14 and the upper gear ring 15 are meshed.

[0033] In practical use, the upper gear 14 is driven to rotate by the setting of the rotating shaft 13.

[0034] In this embodiment, a lower gear 16 is fixedly connected to the outer surface of the rotating shaft 13, and a lower gear ring 18 is provided on the outer surface of the lower mesh seat 8.

[0035] In practical use, the lower gear ring 18 can be used to drive the lower mesh base 8 to rotate.

[0036] In this embodiment, a protruding plate 19 is fixedly connected to the outer surface of the anti-blocking shell 2, a rotating rod 20 is fixedly connected to the lower surface of the protruding plate 19, and a central rotating gear 17 is rotatably connected to the outer surface of the rotating rod 20. The lower gear 16 and the central rotating gear 17 are meshed, and the central rotating gear 17 and the lower gear ring 18 are meshed.

[0037] In practical use, the lower gear ring 18 is driven to rotate by the setting of the intermediate gear 17.

[0038] In this embodiment, the bottom outer surface of the nozzle housing 1 is provided with an external thread 21, and the top of the inner wall of the anti-clogging housing 2 is provided with an internal thread 22.

[0039] In practical use, the nozzle housing 1 and the anti-clogging housing 2 are assembled together by setting the external thread 21 and the internal thread 22.

[0040] In this embodiment, an upper sealing shell 23 is fixedly connected to the upper surface of the fixing plate 11, a lower sealing shell 24 is fixedly connected to the lower surface of the fixing plate 11, and a wire groove shell 25 is fixedly connected to the upper surface of the upper sealing shell 23.

[0041] In practical use, the upper sealing shell 23 and the lower sealing shell 24 are used to seal the top and bottom of the fixing plate 11.

[0042] In this embodiment, a first mounting thread 26 is provided on the inner wall of one end of the nozzle housing 1, and a second mounting thread 27 is provided on the inner wall of the other end of the nozzle housing 1.

[0043] In practical use, the first mounting thread 26 and the second mounting thread 27 facilitate the installation of the nozzle into the spray system.

[0044] Working principle: When the nozzle is in use, after it is installed in the spray layer of the desulfurization tower, the servo motor 12 is started during the use of the spray tower, causing the rotating shaft 13 to rotate. The upper gear 14 and the lower gear 16 on the rotating shaft 13 rotate accordingly. The upper gear 14 meshes with the upper gear ring 15 to drive the mesh seat 5 to rotate in the first rotating rail 4. The lower gear 16 meshes with the intermediate rotating gear 17 to drive it to rotate. The intermediate rotating gear 17 meshes with the lower gear ring 18 to drive the lower mesh seat 8 to rotate in the second rotating rail 7. The mesh seat 5 and the lower mesh seat 8 rotate in opposite directions. During the rotation, the impurities formed on the inner scraper 9 and the outer scraper 10 can be crushed to ensure the unobstructed flow of the nozzle orifice.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A clog-resistant nozzle for the spray layer of a desulfurization tower in a thermal power plant, comprising a nozzle housing (1), characterized in that: The nozzle housing (1) is threaded to the bottom end with an anti-clogging shell (2). The inner wall of the anti-clogging shell (2) is provided with an upper rotating groove (3). The inner bottom wall and the inner top wall of the upper rotating groove (3) are fixedly connected with a first rotating rail (4). The outer surface of the first rotating rail (4) is rotatably connected with a mesh seat (5). The inner wall of the nozzle housing (1) is provided with a lower rotating groove (6). The inner bottom wall and the inner top wall of the lower rotating groove (6) are fixedly connected with a second rotating rail (7). The outer surface of the second rotating rail (7) is rotatably connected with a lower mesh seat (8). The lower surface of the mesh seat (5) is provided with an inner scraping mesh (9). The lower surface of the lower mesh seat (8) is provided with an outer scraping mesh (10).

2. The anti-clogging nozzle for the spray layer of a desulfurization tower in a thermal power plant according to claim 1, characterized in that: A fixing plate (11) is fixedly connected to the outer surface of the anti-blocking shell (2), and a servo motor (12) is fixedly connected to the upper surface of the fixing plate (11).

3. The anti-clogging nozzle for the spray layer of a desulfurization tower in a thermal power plant according to claim 2, characterized in that: The output end of the servo motor (12) is fixedly connected to a rotating shaft (13), and an upper gear (14) is fixedly connected to the outer surface of the rotating shaft (13). An upper gear ring (15) is provided on the outer surface of the mesh base (5), and the upper gear (14) and the upper gear ring (15) are meshed.

4. The anti-clogging nozzle for the spray layer of a desulfurization tower in a thermal power plant according to claim 3, characterized in that: The outer surface of the rotating shaft (13) is fixedly connected to a lower gear (16), and the outer surface of the lower mesh seat (8) is provided with a lower gear ring (18).

5. The anti-clogging nozzle for the spray layer of a desulfurization tower in a thermal power plant according to claim 4, characterized in that: The outer surface of the anti-blocking shell (2) is fixedly connected to a protruding plate (19), and the lower surface of the protruding plate (19) is fixedly connected to a rotating rod (20). The outer surface of the rotating rod (20) is rotatably connected to a central rotating gear (17). The lower gear (16) and the central rotating gear (17) are meshed, and the central rotating gear (17) and the lower gear ring (18) are meshed.

6. The anti-clogging nozzle for the spray layer of a desulfurization tower in a thermal power plant according to claim 1, characterized in that: The nozzle housing (1) has an external thread (21) on its bottom outer surface and an internal thread (22) on the top of its inner wall.

7. The anti-clogging nozzle for the spray layer of a desulfurization tower in a thermal power plant according to claim 2, characterized in that: The upper surface of the fixing plate (11) is fixedly connected to an upper sealing shell (23), the lower surface of the fixing plate (11) is fixedly connected to a lower sealing shell (24), and the upper surface of the upper sealing shell (23) is fixedly connected to a wire groove shell (25).

8. The anti-clogging nozzle for the spray layer of a desulfurization tower in a thermal power plant according to claim 1, characterized in that: The nozzle housing (1) has a first mounting thread (26) on one end of its inner wall and a second mounting thread (27) on the other end of its inner wall.

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