Electrically powered hydrodynamic sootblower lance

Abstract

The utility model discloses a kind of electric power-driven hydraulic ash cleaning spray head, first connecting sleeve is coaxially arranged at the bottom end of shell body, inner shell is coaxially arranged in the inside of shell body, motor mounting groove is coaxially arranged in the inside of inner shell, heat insulation material is filled between motor mounting groove and inner shell, motor is arranged in motor mounting groove, spray head shell top is inserted with first connecting sleeve by second connecting sleeve, third connecting sleeve is coaxially arranged in second connecting sleeve, the output shaft of motor passes through inner shell bottom, the output shaft of motor is inserted with third connecting sleeve and is fastened by bolt connection, the side wall of spray head shell is staggered and arranged with several nozzle mounting grooves, nozzle is arranged in each nozzle mounting groove, the utility model structure is reasonable, spray head shell can be driven to rotate by motor, to realize rotary injection, even distribution in ash cleaning area is shot by nozzle, injection range is greatly improved, and motor drive is used, it is convenient to control rotational speed.

Description

Technical Field

[0001] This utility model relates to the field of furnace cleaning technology, specifically to an electrically driven hydraulic ash removal nozzle. Background Technology

[0002] Waste incineration is one method of waste treatment. During the operation of waste incineration boilers, the high-temperature flue gas inside the furnace carries ash with low melting point, high viscosity, and strong corrosiveness. This ash easily adheres to the heating surfaces of the waste heat boiler, reducing the heat exchange capacity and efficiency of the heat exchange surfaces. This leads to increased temperatures throughout the flue gas duct and exhaust gas, high-temperature corrosion of the boiler heating surfaces, and reduced boiler energy efficiency. Water-based ash removal involves spraying room-temperature liquid water onto the ash-covered surfaces of water-cooled walls exposed to high-temperature flue gas. The thermal stress generated when the ash is cooled by the water, and the rapid expansion of the liquid water during evaporation, impact the ash, causing it to crack and fall off, thus achieving the ash removal effect. Traditional water-based ash removal nozzles use high-pressure atomizing nozzles, spraying water in a shower-like droplet pattern. However, due to the high temperature of the flue gas inside the evaporation tubes, most of the water droplets evaporate before reaching the heating surfaces after contacting the high-temperature flue gas, resulting in poor ash removal efficiency. Alternatively, water flow can be used to drive a small impeller inside the nozzle to rotate it, as disclosed in patent number CN119869789A for a water-powered dust cleaning nozzle. However, this method is prone to problems such as jamming, damage, or uneven rotation speed. Therefore, an improved technology is urgently needed to solve this problem in the existing technology. Utility Model Content

[0003] The purpose of this invention is to provide an electrically driven hydraulic dust removal nozzle to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an electrically driven hydraulic dust removal nozzle, comprising an outer shell, an inner shell, and a nozzle housing. The top of the outer shell is coaxially provided with a threaded interface, and the bottom of the outer shell is coaxially provided with a first connecting sleeve. The inner shell is coaxially provided inside the outer shell, forming a flow channel between the outer shell and the inner shell. A motor mounting slot is coaxially provided inside the inner shell, and a filling cavity is left between the motor mounting slot and the inner shell. The filling cavity is filled with heat-insulating material. A motor is installed in the motor mounting slot. A second connecting sleeve is provided at the top of the nozzle housing, and the second connecting sleeve is inserted into the first connecting sleeve. A third connecting sleeve is coaxially provided with the second connecting sleeve. The output shaft of the motor passes through the bottom of the inner shell and is inserted into the third connecting sleeve and fastened with bolts. A plurality of nozzle mounting slots are staggered on the sidewall of the nozzle housing, and a nozzle is installed in each nozzle mounting slot.

[0005] Preferably, the present invention provides an electrically driven hydraulic dust removal nozzle, wherein the third connecting sleeve has a connecting hole radially formed on its side wall, and the outer casing has an internally threaded boss radially formed on its side wall. The internally threaded boss and the connecting hole are at the same height, and the internally threaded boss has an internally threaded hole. The internally threaded boss is provided with a sealing bolt and a sealing washer through the internally threaded hole.

[0006] Preferably, the electric-driven hydraulic dust removal nozzle provided by this utility model has a plurality of annular grooves on the inner wall of the first connecting sleeve, and a sealing ring is provided in the annular groove.

[0007] Preferably, the electric-driven hydraulic dust removal nozzle provided by this utility model is wherein the inner wall of the outer shell and the outer wall of the inner shell are connected by a plurality of first reinforcing ribs.

[0008] Preferably, in the electrically driven hydraulic dust removal nozzle provided by this utility model, the outer wall of the third connecting sleeve and the inner wall of the second connecting sleeve are connected by a plurality of second reinforcing ribs.

[0009] Preferably, the electric-driven hydraulic cleaning nozzle provided by this utility model has an outer diameter of the motor that is smaller than the inner diameter of the threaded interface.

[0010] Preferably, the electric-driven hydraulic dust removal nozzle provided by this utility model is a waterproof motor, and a waterproof connector is connected to the top of the motor.

[0011] Preferably, the present invention provides an electrically driven hydraulic cleaning nozzle, wherein the nozzle is installed in a nozzle mounting groove by means of a threaded connection.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) The motor is installed in the motor mounting slot in the inner housing. The nozzle housing is connected to the output shaft of the motor through the third connecting sleeve. The motor can drive the nozzle housing to rotate. Water flows into the nozzle housing from the flow channel between the outer housing and the inner housing, thereby realizing rotational spraying. The water is evenly distributed in the dust cleaning area through the nozzle, greatly improving the spray range. Furthermore, the motor drive makes it convenient to control the speed.

[0014] (2) A flow channel is formed between the outer shell and the inner shell. Combined with heat insulation material and flowing water, this achieves two goals: first, to cool the motor; and second, to enable stable operation in the high-temperature furnace, thereby improving its service life.

[0015] (3) Several first reinforcing ribs are connected between the outer shell and the inner shell, and several second reinforcing ribs are connected between the outer wall of the third connecting sleeve and the second connecting sleeve, thereby ensuring the overall structural strength, reducing the probability of deformation, and improving service life.

[0016] (4) An internal threaded boss is provided on one side of the outer shell to facilitate the insertion of bolts connecting the motor and the third connecting sleeve, thereby facilitating the replacement of the nozzle housing.

[0017] (5) It can be flexibly applied to the end of the cleaning hose of a vertically installed water-powered cleaning system or installed at the end of a horizontal water-powered cleaning pipe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a front view structural diagram of the present invention;

[0020] Figure 3 For the appendix Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0021] Figure 4 For the appendix Figure 3 A schematic diagram of the angle transformation structure.

[0022] In the diagram: 1. Outer shell; 2. Inner shell; 3. Nozzle shell; 4. Threaded interface; 5. First connecting sleeve; 6. Motor mounting slot; 7. Filling cavity; 8. Thermal insulation material; 9. Motor; 10. Second connecting sleeve; 11. Third connecting sleeve; 12. Nozzle mounting slot; 13. Nozzle; 14. Connecting hole; 15. Internal threaded boss; 16. Sealing bolt; 17. Sealing washer; 18. Annular groove; 19. Sealing ring; 20. First reinforcing rib connection; 21. Second reinforcing rib connection; 22. Waterproof joint. Detailed Implementation

[0023] The technical solution of this 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 this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution: an electrically driven hydraulic dust removal nozzle, including an outer shell 1, an inner shell 2, and a nozzle housing 3. A threaded interface 4 is coaxially provided at the top of the outer shell 1, and a first connecting sleeve 5 is coaxially provided at the bottom of the outer shell 1. The inner shell 2 is coaxially provided inside the outer shell 1, forming a flow channel between the outer shell 1 and the inner shell 2. The inner wall of the outer shell 1 and the outer wall of the inner shell 2 are connected by several first reinforcing ribs 20 to improve the connection strength between the outer shell 1 and the inner shell 2 and prevent deformation. A motor mounting slot 6 is coaxially provided inside the inner shell 2, and a filling cavity 7 is left between the motor mounting slot 6 and the inner shell 2. The filling cavity 7 is filled with heat-insulating material 8. A motor 9 is installed in the motor mounting slot 6. The outer diameter of the motor 9 is smaller than the inner diameter of the threaded interface 4 to ensure that the motor 9 can smoothly pass through the threaded interface 4, thereby realizing the installation and removal of the motor 9. The motor 9 is a waterproof motor, and a waterproof connector 22 is connected to the top of the motor 9 to prevent water from entering the motor 9. The nozzle housing 3 has a second connecting sleeve 10 at its top, which is inserted into the first connecting sleeve 5. The inner wall of the first connecting sleeve 5 has several annular grooves 18, and a sealing ring 19 is provided in the annular grooves 18. The sealing ring 19 is provided to ensure that there is no water leakage at the connection between the second connecting sleeve 10 and the first connecting sleeve 5. The second connecting sleeve 10 is coaxially provided with a third connecting sleeve 11. The outer wall of the third connecting sleeve 11 and the inner wall of the second connecting sleeve 10 are connected by several second reinforcing ribs 21 to ensure the support strength between the third connecting sleeve 11 and the second connecting sleeve 10. The output shaft of the motor 9 passes through the bottom of the inner housing 2 and is inserted into the third connecting sleeve 11 and fastened with bolts. The side wall of the nozzle housing 3 has several nozzle mounting grooves 12 arranged alternately. Each nozzle mounting groove 12 is provided with a nozzle 13. The nozzle 13 is installed in the nozzle mounting groove 12 by means of threaded connection to facilitate the installation and removal of the nozzle 13.

[0026] The third connecting sleeve 11 has a connecting hole 14 radially opened on its side wall, and the outer shell 1 has an internal thread boss 15 radially opened on its side wall. The internal thread boss 15 is at the same height as the connecting hole 14. The internal thread boss 15 has an internal thread hole and is equipped with a sealing bolt 16 and a sealing washer 17. The internal thread boss 15 facilitates the entry of bolts used to connect the output shaft of the motor 9 and the third connecting sleeve 11 into the outer shell 1, and also provides a channel for tools to enter, thereby realizing the connection and disassembly of the third connecting sleeve 11 and the output shaft of the motor 9.

[0027] Assembly Method and Operating Principle: First, the outer shell 1 and inner shell 2 are assembled using sand casting. Then, heat insulation material 8, such as polyurethane, is filled into the filling cavity 7 between the motor mounting slot 6 and the inner shell 2. Next, the motor 9 is inserted into the motor mounting slot 6 and sealed and fixed with filler adhesive. The output shaft of the motor 9 passes through the bottom of the inner shell 2. The nozzle 13 is inserted into the nozzle mounting slot 12 and threaded tightly. Then, the sealing ring 19 is secured in the annular groove 18 of the first connecting sleeve 5. The second connecting sleeve 10 at the top of the nozzle housing 3 is then inserted into the first connecting sleeve 5. Simultaneously, the third connecting sleeve 11 is inserted into the output shaft of the motor 9. Note that the connecting hole 14 on the side wall of the third connecting sleeve 11 corresponds to the threaded hole on the side wall of the motor 9's output shaft. Rotating to the internal threaded boss 15 of the outer shell 1, a bolt is passed through the internal threaded boss 15 using a magnetic screwdriver. The bolt is then passed through the connecting hole 14 and connected to the threaded hole on the side wall of the motor 9's output shaft, completing the connection between the nozzle housing 3 and the motor 9, thus completing the assembly. Before use, the external pipe is fitted over the connecting wire of the motor 9, with the connecting wire exiting from the bypass port of the external pipe, and the external pipe is connected to the threaded interface 4. During use, the motor 9 drives the nozzle housing 3 to rotate, water enters through the external pipe, flows through the channel between the outer shell 1 and the inner shell 2, and enters the nozzle housing 3 through the second connecting sleeve 10. Finally, the water is ejected from each nozzle 13 of the rotating nozzle housing 3, achieving ash removal from the furnace chamber. During the process, the water contacts the top of the motor 9, thereby cooling the motor 9, while the insulation material 8 filling the space between the inner shell 2 and the motor mounting slot 6 ensures stable operation within the high-temperature furnace chamber. This utility model has a reasonable structure. The motor 9 is installed in the motor mounting slot 6 in the inner shell 2. The nozzle shell 3 is connected to the output shaft of the motor 9 through the third connecting sleeve 11. The motor 9 can drive the nozzle shell 3 to rotate. Water flows into the nozzle shell 3 from the flow channel between the outer shell 1 and the inner shell 2, thereby realizing rotational spraying. The water is evenly distributed in the dust cleaning area through the nozzle 13, greatly improving the spray range. Furthermore, the use of the motor 9 for drive makes it easy to control the speed. At the same time, the flow channel formed between the outer shell 1 and the inner shell 2, combined with the heat insulation material 8 and the flowing water, achieves two goals: firstly, cooling of the motor 9, and secondly, [the system can achieve the desired effect]. It now operates stably inside the high-temperature furnace, thereby improving its service life; several first reinforcing ribs 20 connect the outer shell 1 and the inner shell 2, and several second reinforcing ribs 21 connect the outer wall of the third connecting sleeve 11 and the second connecting sleeve 10, thereby ensuring the overall structural strength, reducing the probability of deformation, and improving service life; an internal threaded boss 15 is provided on one side of the outer shell 1, which facilitates the insertion of bolts connecting the motor 9 and the third connecting sleeve 11, thereby facilitating the replacement of the nozzle housing 3; it can be flexibly applied to the end of the cleaning hose of a vertically installed water-powered cleaning system or installed at the end of a horizontal water-powered cleaning pipe.

[0028] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0029] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An electrically driven hydraulic dust removal nozzle, characterized in that: The device includes an outer shell (1), an inner shell (2), and a nozzle shell (3). The top of the outer shell (1) is coaxially provided with a threaded interface (4), and the bottom of the outer shell (1) is coaxially provided with a first connecting sleeve (5). The inner shell (2) is coaxially arranged inside the outer shell (1), forming a flow channel between the outer shell (1) and the inner shell (2). A motor mounting slot (6) is coaxially arranged inside the inner shell (2). A filling cavity (7) is left between the motor mounting slot (6) and the inner shell (2), and the filling cavity (7) is filled with heat-insulating material (8). The motor mounting slot (6)... The inner housing (2) is equipped with a motor (9), and the top of the nozzle housing (3) is provided with a second connecting sleeve (10). The second connecting sleeve (10) is inserted into the first connecting sleeve (5). The second connecting sleeve (10) is coaxially provided with a third connecting sleeve (11). The output shaft of the motor (9) passes through the bottom of the inner housing (2). The output shaft of the motor (9) is inserted into the third connecting sleeve (11) and fastened with bolts. The side wall of the nozzle housing (3) is provided with a plurality of nozzle mounting slots (12), and each nozzle mounting slot (12) is provided with a nozzle (13).

2. The electrically driven hydraulic dust removal nozzle according to claim 1, characterized in that: The third connecting sleeve (11) has a connecting hole (14) radially opened on its side wall, and the outer shell (1) has an internal thread boss (15) radially opened on its side wall. The internal thread boss (15) and the connecting hole (14) are at the same height. The internal thread boss (15) has an internal thread hole. The internal thread boss (15) has a sealing bolt (16) and a sealing washer (17) through the internal thread hole.

3. The electrically driven hydraulic dust removal nozzle according to claim 1, characterized in that: The inner wall of the first connecting sleeve (5) is provided with several annular grooves (18), and a sealing ring (19) is provided in the annular grooves (18).

4. The electrically driven hydraulic dust removal nozzle according to claim 1, characterized in that: The inner wall of the outer shell (1) and the outer wall of the inner shell (2) are connected by a number of first reinforcing ribs (20).

5. The electrically driven hydraulic dust removal nozzle according to claim 1, characterized in that: The outer wall of the third connecting sleeve (11) and the inner wall of the second connecting sleeve (10) are connected by a number of second reinforcing ribs (21).

6. The electrically driven hydraulic dust removal nozzle according to claim 1, characterized in that: The outer diameter of the motor (9) is smaller than the inner diameter of the threaded interface (4).

7. The electrically driven hydraulic dust removal nozzle according to claim 1, characterized in that: The motor (9) is a waterproof motor (9), and a waterproof connector (22) is connected to the top of the motor (9).

8. The electrically driven hydraulic dust removal nozzle according to claim 1, characterized in that: The nozzle (13) is installed in the nozzle mounting groove (12) by means of a threaded connection.

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