High-temperature-resistant nozzle of boiler burner

Abstract

The utility model relates to the technical field of burner nozzles, in particular to a boiler burner high-temperature-resistant nozzle which comprises a nozzle body and an end cover, a straight hole used for adjustment is formed in the end cover, a shaft sleeve used for supporting is rotatably installed in the straight hole, and a rotating shaft used for transmission is rotatably installed in the shaft sleeve. In the using process of the high-temperature-resistant nozzle of the boiler burner, the nozzle body can be protected through the end cover, meanwhile, the T-shaped screw can be driven to rotate only by rotating the rotating shaft on the inner side of the shaft sleeve in the straight hole in the inner circumference of the end cover, and the T-shaped screw can be separated from the screw hole in the nozzle body; and the rotating shaft can rotate in the shaft sleeve, the shaft sleeve can rotate in the straight hole, so that the T-shaped screw rod is simple and convenient to rotate, can rotate around the rotating shaft after the end cover is installed, and is convenient to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the field of burner nozzle technology, specifically to a high-temperature resistant nozzle for boiler burners. Background Technology

[0002] The four-channel burner achieves higher efficiency in burning pulverized coal, resulting in lower nitrogen content in the final exhaust gas and achieving a low-NOx environmental protection effect. Patent CN201921190287.3 discloses a novel boiler burner nozzle. The double-layer nozzle body improves the nozzle's wear resistance, high-temperature resistance, and deformation resistance. Simultaneously, the cleaning device can thoroughly clean pulverized coal and tar from both inside and outside each channel, effectively preventing nozzle clogging. However, during the use of the high-temperature resistant nozzle in the boiler burner, the dust cover can only be hinged and swung around the outer periphery of the nozzle, making disassembly inconvenient and causing considerable inconvenience during long-term maintenance. Therefore, we propose a high-temperature resistant nozzle for boiler burners. Utility Model Content

[0003] To address the problems in the existing technology, this utility model provides a high-temperature resistant nozzle for boiler burners.

[0004] The technical solution adopted by this utility model to solve its technical problem is a high-temperature resistant nozzle for a boiler burner, including a nozzle body and an end cover. The end cover has a straight hole for adjustment, and a bushing for support is rotatably installed in the straight hole. A rotating shaft for transmission is rotatably installed in the bushing, and a T-shaped screw for limiting is bolted to the outer end surface of the rotating shaft. The nozzle body has a screw hole on the side near the end cover that is screwed to the T-shaped screw.

[0005] The inner side of the screw hole has an integrally formed tapered rod that is inserted and connected to the T-shaped screw, and the outer periphery of the T-shaped screw is clamped with a rubber ring for limiting position.

[0006] By adopting the above technical solution, during the use of the high-temperature resistant nozzle of the boiler burner, the nozzle body can be protected by the end cover. At the same time, simply rotating the shaft inside the straight hole of the end cover can drive the T-screw to rotate, so that the T-screw can be separated from the screw hole on the nozzle body. This allows the end cover installed on the outer periphery of the nozzle body to be disassembled, which is convenient for maintenance. The shaft can rotate inside the bushing, and the bushing can rotate in the straight hole, making the T-screw simple and convenient to rotate. After the end cover is installed, it can rotate around the shaft and is easy to disassemble and assemble.

[0007] When the T-screw and the screw hole are screwed together, the rubber ring on the outer circumference of the T-screw can fit into the groove on the inner circumference of the screw hole, which can improve the stability of the screwed connection between the T-screw and the screw hole. At the same time, the tapered rod in the screw hole can be inserted into the T-screw, which can further improve the stability of the screw and the screw hole when screwed together, so that the end cap can be installed more stably on the outer circumference of the nozzle body.

[0008] Specifically, a plugging ring for limiting the T-shaped screw is assembled in the straight hole by screws.

[0009] By adopting the above technical solution, the plugging ring can be easily installed inside the straight hole and limit the bushing and T-bolt in the straight hole, so that one end of the T-bolt can extend out of the straight hole while the other end can be located inside the straight hole, which is convenient for subsequent connection.

[0010] Specifically, a stopper for limiting the position is screwed onto the side of the end cap near the nozzle body, and a cross rod that is inserted and connected to the nozzle body is slidably installed on the inner side of the end cap. The cross rod is engaged with the stopper, and a spring for pushing the cross rod to move is installed inside the end cap.

[0011] By adopting the above technical solution, the plug and the cross rod are interlocked and slidably connected, and can be limited in position. The spring inside the end cap can push the cross rod to move and allow one end of the cross rod to extend out of the plug and interlock with the hole on the outer periphery of the nozzle body, which facilitates the position limitation of the end cap and enables the end cap to stably protect the nozzle body.

[0012] Specifically, the end cap away from the nozzle body is fitted with a ring cap for limiting position by screws, and the end of the rotating shaft located outside the ring cap is fitted with a rotating seat, and the end of the cross rod located outside the ring cap is fitted with a pull ring.

[0013] By adopting the above technical solutions, the ring cover facilitates the limiting of the operation of the internal structure, straight hole, and cross rod of the end cover, while the pull ring makes it easier to pull out the cross rod, and the rotating seat makes it easier to rotate the shaft, making it convenient to disassemble and assemble the end cover.

[0014] Specifically, the outer circumferential surface of the ring cover is fitted with a handle for lifting.

[0015] By adopting the above technical solution, the handle makes it more convenient to disassemble, assemble, and lift the end cap.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The technical solution of this application, through the design of straight holes, bushings, rotating shafts, T-shaped screws, and screw holes, allows the end cap to protect the nozzle body during the use of high-temperature resistant nozzles for boiler burners. Simultaneously, simply rotating the rotating shaft inside the bushing within the straight hole of the end cap drives the T-shaped screw to rotate, allowing it to separate from the screw hole on the nozzle body. This enables the disassembly of the end cap installed on the outer periphery of the nozzle body, facilitating maintenance. Furthermore, the rotating shaft can rotate within the bushing, and the bushing can rotate within the straight hole, making the rotation of the T-shaped screw simple and convenient. After the end cap is installed, it can rotate around the rotating shaft, facilitating easy assembly and disassembly.

[0018] 2. The technical solution of this application, through the design of the tapered rod and the rubber ring, allows the rubber ring on the outer circumference of the T-shaped screw to fit into the groove on the inner circumference of the screw hole when the T-shaped screw and the screw hole are screwed together. This improves the stability of the screwed connection between the T-shaped screw and the screw hole. At the same time, the tapered rod in the screw hole can be inserted into the T-shaped screw, further improving the stability of the screw and screw hole connection. This allows the end cap to be installed more stably on the outer circumference of the nozzle body. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is an isometric view of the present invention;

[0021] Figure 2 This is a schematic plan view of the connection structure between the nozzle body and the end cap of this utility model;

[0022] Figure 3 This is an exploded view of the connection structure between the tapered rod and the T-shaped screw of this utility model;

[0023] In the diagram: 1. Nozzle body; 2. End cap; 3. Straight hole; 4. Bushing; 5. Rotating shaft; 6. T-screw; 7. Screw hole; 8. Plug ring; 9. Tapered rod; 10. Rubber ring; 11. Plug; 12. Cross rod; 13. Spring; 14. Ring cap; 15. Rotary seat; 16. Pull ring; 17. Handle. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-3This utility model provides a technical solution: a high-temperature resistant nozzle for a boiler burner, comprising a nozzle body 1 and an end cap 2. The end cap 2 has a straight hole 3 for adjustment, and a bushing 4 for support is rotatably installed in the straight hole 3. A rotating shaft 5 for transmission is rotatably installed in the bushing 4, and a T-shaped screw 6 for limiting is bolted to the outer end surface of the rotating shaft 5. A screw hole 7 is provided on the side of the nozzle body 1 near the end cap 2, which is screwed to the T-shaped screw 6. A tapered rod 9 is integrally constructed inside the screw hole 7, which is inserted to connect with the T-shaped screw 6, and a rubber ring 10 for limiting is snapped onto the outer periphery of the T-shaped screw 6.

[0026] During use, when using the high-temperature resistant nozzle of the boiler burner, the end cover 2 can be used to protect the nozzle body 1. At the same time, simply rotating the shaft 5 inside the bushing 4 in the straight hole 3 of the inner circumference of the end cover 2 can drive the T-screw 6 to rotate, so that the T-screw 6 can be separated from the screw hole 7 on the nozzle body 1. This allows the end cover 2 installed on the outer circumference of the nozzle body 1 to be disassembled for easy maintenance. The shaft 5 can rotate inside the bushing 4, and the bushing 4 can rotate in the straight hole 3, making the rotation of the T-screw 6 simple and convenient. After the end cover 2 is installed, it can rotate around the shaft 5, and it is easy to disassemble and assemble.

[0027] When the T-screw 6 and the screw hole 7 are screwed together, the rubber ring 10 that is snapped onto the outer circumference of the T-screw 6 can fit into the groove that is pre-set on the inner circumference of the screw hole 7, which helps to improve the stability of the screwed connection between the T-screw 6 and the screw hole 7. At the same time, the tapered rod 9 in the screw hole 7 can be inserted into the T-screw 6, which further improves the stability of the screw and the screw hole 7 when screwed together, so that the end cap 2 can be installed more stably on the outer circumference of the nozzle body 1.

[0028] like Figure 2 As shown, a plugging ring 8 for limiting the T-shaped screw 6 is assembled in the straight hole 3 by screws.

[0029] In use, the plugging ring 8 can be easily installed inside the straight hole 3 and limit the bushing 4 and T-bolt 6 in the straight hole 3, so that one end of the T-bolt 6 can extend out of the straight hole 3 while the other end can be located inside the straight hole 3, which is convenient for subsequent connection.

[0030] like Figure 2 As shown, a plug 11 for limiting the position is screwed onto the side of the end cap 2 near the nozzle body 1, and a cross rod 12 that is inserted and connected to the nozzle body 1 is slidably installed on the inner side of the end cap 2. The cross rod 12 fits into the plug 11, and a spring 13 for pushing the cross rod 12 to move is installed inside the end cap 2.

[0031] In use, the plug 11 and the cross rod 12 are inserted into each other and slidably connected, and can limit their position. The spring 13 inside the end cap 2 can push the cross rod 12 to move and allow one end of the cross rod 12 to extend out of the plug 11 and be inserted into the hole on the outer periphery of the nozzle body 1, so as to limit the position of the end cap 2 and enable the end cap 2 to stably protect the nozzle body 1.

[0032] like Figure 1 and Figure 2 As shown, the end cap 2 away from the nozzle body 1 is fitted with a ring cap 14 for limiting by screws, and the end of the rotating shaft 5 located outside the ring cap 14 is fitted with a rotating seat 15, and the end of the cross rod 12 located outside the ring cap 14 is fitted with a pull ring 16.

[0033] When in use, the ring cover 14 makes it easy to limit the operation of the internal structure of the end cover 2, the straight hole 3, and the cross rod 12, while the pull ring 16 makes it easier to pull the cross rod 12 out, and the rotating seat 15 makes it easier to rotate the rotating shaft 5, making it convenient to disassemble and assemble the end cover 2.

[0034] like Figure 1 and Figure 2 As shown, the outer peripheral surface of the ring cover 14 is fitted with a handle 17 for lifting.

[0035] When in use, the handle 17 makes it easier to assemble, disassemble, and lift the end cap 2.

[0036] The working principle and usage process of this utility model are as follows: In use, first install the corresponding structural components in suitable positions. During the use of the high-temperature resistant nozzle of the boiler burner, the end cap 2 can protect the nozzle body 1. Simultaneously, simply rotating the shaft 5 inside the bushing 4 in the straight hole 3 of the end cap 2 will drive the T-screw 6 to rotate, allowing the T-screw 6 to separate from the screw hole 7 on the nozzle body 1. This allows the end cap 2 installed on the outer periphery of the nozzle body 1 to be disassembled for easy maintenance. Furthermore, the shaft 5 can rotate within the bushing 4, and the bushing 4 can rotate within the straight hole 3, allowing the T-screw 6 to rotate. It is simple and convenient to rotate, and can rotate around the shaft 5 after the end cap 2 is installed. It is also easy to disassemble and assemble. At the same time, when the T-screw 6 and the screw hole 7 are screwed together, the rubber ring 10 that is engaged on the outer circumference of the T-screw 6 can fit into the groove that is preset on the inner circumference of the screw hole 7, which can improve the stability of the screw connection between the T-screw 6 and the screw hole 7. Meanwhile, the tapered rod 9 in the screw hole 7 can be inserted into the T-screw 6, which can further improve the stability of the screw connection between the screw and the screw hole 7. This allows the end cap 2 to be installed more stably on the outer circumference of the nozzle body 1, and allows the end cap 2 to provide more stable protection for the nozzle body 1.

[0037] 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 descriptions of the above embodiments and specifications 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 protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant nozzle for a boiler burner, characterized in that, The nozzle body (1) includes a nozzle body (1) and an end cap (2). The end cap (2) has a straight hole (3) for adjustment and a bushing (4) for support is rotatably installed in the straight hole (3). A rotating shaft (5) for transmission is rotatably installed in the bushing (4). A T-shaped screw (6) for limiting is bolted to the outer end surface of the rotating shaft (5). The nozzle body (1) has a screw hole (7) on the side near the end cap (2) that is screwed to the T-shaped screw (6). The inner side of the screw hole (7) is integrally constructed with a tapered rod (9) that is connected to the T-shaped screw (6), and the outer periphery of the T-shaped screw (6) is fitted with a rubber ring (10) for limiting position.

2. A high temperature resistant burner tip for a boiler burner as defined in claim 1, characterized in that A plug ring (8) for limiting the T-shaped screw (6) is installed in the straight hole (3) by screws.

3. A high-temperature-resistant burner nozzle for a boiler according to claim 1, characterized in that The end cap (2) is screwed onto the side of the nozzle body (1) with a stopper (11) for limiting the position, and a cross rod (12) that is inserted and connected to the nozzle body (1) is slidably installed on the inner side of the end cap (2). The cross rod (12) is engaged with the stopper (11), and a spring (13) for pushing the cross rod (12) to move is installed inside the end cap (2).

4. A high-temperature-resistant burner nozzle for a boiler according to claim 3, characterized in that The end cap (2) away from the nozzle body (1) is fitted with a ring cap (14) for limiting by screws, and the end of the rotating shaft (5) located outside the ring cap (14) is fitted with a rotating seat (15), and the end of the cross rod (12) located outside the ring cap (14) is fitted with a pull ring (16).

5. A high-temperature-resistant burner nozzle for a boiler according to claim 4, characterized in that The outer peripheral surface of the ring cover (14) is fitted with a handle (17) for lifting.

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