Combustion nozzle for hydrogen combustion boiler

Abstract

The utility model provides a burner for a hydrogen combustion boiler, and relates to the technical field of burners, the burner comprises a combustion bin, a sealing device is arranged on the outer surface of a connecting pipe, the sealing device comprises a circular ring and a sealing ring, the bottom end of the circular ring is fixedly connected with a chuck, the top end of the sealing ring is fixedly connected with two screws, and the two screws are fixedly connected with the connecting pipe. The sealing device is arranged, the connecting pipe at the bottom end of the combustion nozzle is connected with a hydrogen conveying pipeline through the combustion nozzle, the sealing device is arranged on the connecting pipe, a threaded ring is connected to the outer surface of the threaded rod in a threaded mode, and a threaded groove is formed in the outer surface of the connecting pipe. The pushing circular ring rotates on the outer surface, provided with the threaded groove, of the connecting pipe and moves downwards to enable the sealing ring to be arranged on the outer side of the connecting position of the connecting pipe and the hydrogen conveying pipeline in a sleeving mode, the connecting position is further sealed, and the mutual position between the connecting pipe and the hydrogen conveying pipeline is further limited. And the problem of hydrogen leakage caused by loosening of the joint due to shaking of the connecting pipe or the hydrogen conveying pipeline is avoided as far as possible.

Description

Technical Field

[0001] This utility model relates to the field of combustion nozzle technology, and in particular to a combustion nozzle for a hydrogen combustion boiler. Background Technology

[0002] The burner for hydrogen-fired boilers is specifically designed for boilers that use hydrogen as fuel. The hydrogen burner has a small, enclosed combustion chamber where the fuel is almost completely burned. The resulting high-temperature gas stream is ejected at high speed. This high-temperature, high-speed gas stream enhances convective heat transfer within the furnace, thereby shortening heating time, increasing furnace productivity, and saving fuel.

[0003] When using a hydrogen combustion boiler burner, it needs to be connected to a solenoid valve and a hydrogen delivery pipeline. The mechanical connection between the burner and the pipeline may loosen over time, leading to hydrogen leakage and reducing the safety of the burner during use. Utility Model Content

[0004] The purpose of this invention is to address the problem that when a burner in a hydrogen combustion boiler is used, it needs to be connected to a solenoid valve and a hydrogen delivery pipeline. The mechanical connection between the burner and the pipeline may loosen over time, leading to hydrogen leakage and reduced safety during use. Therefore, this invention provides a burner for a hydrogen combustion boiler.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a burner for a hydrogen combustion boiler, comprising a combustion chamber, an electromagnetic valve tube provided on one side of the combustion chamber, a connecting pipe provided at the bottom end of the combustion chamber, a spray pipe provided at one end of the combustion chamber, a sealing device provided on the outer surface of the connecting pipe, the sealing device comprising a ring and a sealing ring, a chuck fixedly connected to the bottom end of the ring, two positioning holes provided on the outer surface of the chuck, two screws fixedly connected to the top end of the sealing ring, threaded rings threadedly connected to the outer surface of the screws, a threaded groove provided on the outer surface of the connecting pipe, and the inner wall of the ring threadedly connected to the outer surface of the connecting pipe with the threaded groove.

[0006] The aforementioned components achieve the following effects: By setting a circular ring, two screws at the top of the sealing ring pass through the positioning hole, making the top part of the sealing ring located inside the chuck and in contact with the top of the inner wall of the chuck. Then, a threaded ring is placed on the outer surface of the screws, and the threaded ring moves downward on the surface of the screws, pressing against the surface of the chuck, thus fixing the position of the sealing ring and the chuck. After connecting the connecting pipe at the bottom of the burner to the hydrogen delivery pipeline using the burner nozzle, the circular ring can be pushed to rotate on the outer surface of the connecting pipe with the threaded groove and move downward, placing the sealing ring on the outside of the connection between the connecting pipe and the hydrogen delivery pipeline, further sealing the connection and further restricting the relative position between the connecting pipe and the hydrogen delivery pipeline, minimizing the risk of the connecting pipe or hydrogen delivery pipeline shaking and causing the connection to loosen, resulting in hydrogen leakage.

[0007] Preferably, a convex ring is fixedly connected to the bottom of the inner wall of the sealing ring, and the convex ring is made of rubber.

[0008] The effect achieved by the above components is that by setting a convex ring made of rubber, the contact point between the bottom of the inner wall of the sealing ring and the outer surface of the hydrogen delivery pipeline can be further sealed, thereby increasing the sealing effect of the sealing ring.

[0009] Preferably, a plurality of protruding strips are fixedly connected to the top end of the ring, and the protruding strips are distributed circumferentially on the outer surface of the ring.

[0010] The effect achieved by the above components is that by pressing the raised strip on the outer surface of the ring with your hand, you can more easily control the rotation of the ring and prevent your hand from slipping.

[0011] Preferably, a plurality of positioning rods are fixedly connected to the bottom end of the chuck, and the bottom end of the positioning rods is provided with a protrusion.

[0012] The effect achieved by the above components is as follows: when the sealing ring is fixed below the chuck and placed on the outside of the connection between the connecting pipe and the hydrogen delivery pipe, the protrusion at the bottom of the positioning rod will abut against the outside of the bottom edge of the sealing ring. The positioning rod can reinforce the outer surface shape of the sealing ring and minimize the deformation of the bottom of the sealing ring that may affect the sealing effect.

[0013] Preferably, a gasket is fixedly connected to the bottom end of the threaded ring, and the gasket is made of rubber.

[0014] The effect achieved by the above components is that by setting rubber gaskets, the bottom end of the threaded ring is pressed more stably against the outer surface of the chuck, and the contact between the positioning hole and the screw can be further sealed.

[0015] Preferably, two elastic ropes are fixedly connected to the top of the chuck, and the ends of the two elastic ropes away from the chuck are fixedly connected to one side of the threaded ring.

[0016] The effect achieved by the above components is that when disassembling and replacing the sealing ring, the threaded ring can be temporarily fixed to one side of the chuck by the elastic rope, so as to avoid the threaded ring falling off and being lost as much as possible.

[0017] Preferably, the top of the nozzle is provided with a dustproof device, which includes two rectangular blocks. The bottom ends of the two rectangular blocks are fixedly connected to the outer surface of the nozzle. A rotating shaft is rotatably connected to the inner wall of the rectangular blocks. An L-shaped block is fixedly connected to the outer surface of the rotating shaft. A baffle is fixedly connected to one side of the L-shaped block.

[0018] The effect achieved by the above components is as follows: when the burner is not in use, the rotating shaft can be rotated to control the L-shaped block and the baffle to rotate, so that one side of the baffle is attached to one end of the nozzle, sealing the nozzle and preventing dust from entering the interior of the nozzle and affecting the flame effect emitted from the nozzle.

[0019] Preferably, a round rod is fixedly connected to one side of the rotating shaft. The round rod is a magnetic rod, and the rectangular block is made of iron.

[0020] The effect achieved by the above components is that when the rotating shaft opens the baffle, one end of the magnetic rod will contact the outer surface of the rectangular block and be magnetically attracted to fix the position of the rotating shaft and the baffle.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] In this invention, a sealing device is installed. After the burner nozzle is connected to the hydrogen delivery pipeline by connecting the bottom of the burner nozzle, the ring is pushed to rotate on the outer surface of the threaded groove of the connecting pipe and move downward to fit the sealing ring on the outside of the connection between the connecting pipe and the hydrogen delivery pipeline. This further seals the connection and restricts the relative position between the connecting pipe and the hydrogen delivery pipeline, minimizing the risk of the connecting pipe or the hydrogen delivery pipeline shaking and causing the connection to loosen, thus preventing hydrogen leakage. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the nozzle of this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the ring portion of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the sealing ring of this utility model.

[0027] Legend: 1. Combustion chamber; 2. Sealing device; 3. Dustproof device; 4. Solenoid valve tube; 5. Connecting pipe; 6. Nozzle; 21. Threaded groove; 22. Ring; 23. Chuck; 24. Positioning hole; 25. Sealing ring; 26. Screw; 27. Threaded ring; 28. Raised bar; 29. ​​Gasket; 210. Elastic rope; 211. Positioning rod; 212. Raised ring; 31. Rectangular block; 32. Rotating shaft; 33. L-shaped block; 34. Baffle; 35. Round rod. Detailed Implementation

[0028] Example 1, as Figure 1-4 As shown, a burner for a hydrogen combustion boiler includes a combustion chamber 1. A solenoid valve pipe 4 is installed on one side of the combustion chamber 1. A connecting pipe 5 is installed at the bottom of the combustion chamber 1. A nozzle 6 is installed at one end of the combustion chamber 1. A sealing device 2 is installed on the outer surface of the connecting pipe 5. The sealing device 2 includes a ring 22 and a sealing ring 25. A chuck 23 is fixedly connected to the bottom end of the ring 22. Two positioning holes 24 are formed on the outer surface of the chuck 23. Two screws 26 are fixedly connected to the top end of the sealing ring 25. Threaded rings 27 are threaded onto the outer surface of the screws 26. A threaded groove 21 is formed on the outer surface of the connecting pipe 5. The inner wall of the ring 22 is threaded to the outer surface of the connecting pipe 5 with the threaded groove 21. By setting the ring 22, the two screws 26 at the top end of the sealing ring 25 pass through the positioning holes 24, and the top end of the sealing ring 25... The end portion is located inside the chuck 23 and fits against the top of the inner wall of the chuck 23. Then, the threaded ring 27 is fitted onto the outer surface of the screw 26. Rotating the threaded ring 27 moves downward on the surface of the screw 26 and presses it against the surface of the chuck 23, fixing the position of the sealing ring 25 and the chuck 23. The sealing ring 25 and the ring 22 are connected. After connecting the connecting pipe 5 at the bottom of the burner to the hydrogen delivery pipeline using the burner nozzle, the ring 22 can be pushed to rotate and move downward on the outer surface of the connecting pipe 5 with the threaded groove 21. The sealing ring 25 is fitted onto the outside of the connection between the connecting pipe 5 and the hydrogen delivery pipeline, further sealing the connection and further restricting the relative position between the connecting pipe 5 and the hydrogen delivery pipeline, so as to avoid the connection loosening due to shaking of the connecting pipe 5 or the hydrogen delivery pipeline, which could cause hydrogen leakage.

[0029] Reference Figure 1-4 As shown in this embodiment: a convex ring 212 is fixedly connected to the bottom of the inner wall of the sealing ring 25. The convex ring 212 is made of rubber. By setting the convex ring 212 made of rubber, the contact point between the bottom of the inner wall of the sealing ring 25 and the outer surface of the hydrogen delivery pipeline can be further sealed, thereby increasing the sealing effect of the sealing ring 25. Several convex strips 28 are fixedly connected to the top of the ring 22. The convex strips 28 are distributed circumferentially on the outer surface of the ring 22. By pressing the convex strips 28 on the outer surface of the ring 22 with your hand, you can more easily control the rotation of the ring 22 and prevent your hand from slipping.

[0030] Reference Figure 1-4 As shown in this embodiment: a plurality of positioning rods 211 are fixedly connected to the bottom end of the chuck 23. The bottom end of the positioning rods 211 is provided with a protrusion. When the sealing ring 25 is fixed below the chuck 23 and sleeved on the outside of the connection between the connecting pipe 5 and the hydrogen delivery pipe, the protrusion at the bottom end of the positioning rod 211 will abut against the outside of the bottom edge of the sealing ring 25. The positioning rods 211 can reinforce the outer surface shape of the sealing ring 25, and minimize the deformation of the bottom end of the sealing ring 25 that would affect the sealing effect. A gasket 29 is fixedly connected to the bottom end of the threaded ring 27. The gasket 29 is made of rubber. By setting the rubber gasket 29, the bottom end of the threaded ring 27 is pressed more stably against the outer surface of the chuck 23, and the contact between the positioning hole 24 and the screw 26 can be further sealed. Two elastic ropes 210 are fixedly connected to the top of the chuck 23. The ends of the two elastic ropes 210 away from the chuck 23 are fixedly connected to one side of the threaded ring 27. When disassembling and replacing the sealing ring 25, the threaded ring 27 can be temporarily fixed to one side of the chuck 23 by the elastic ropes 210, so as to avoid the threaded ring 27 falling off and being lost as much as possible.

[0031] Reference Figure 1-2 As shown in this embodiment: a dustproof device 3 is provided at the top of the nozzle 6. The dustproof device 3 includes two rectangular blocks 31. The bottom ends of the two rectangular blocks 31 are fixedly connected to the outer surface of the nozzle 6. A rotating shaft 32 is rotatably connected to the inner wall of the rectangular blocks 31. An L-shaped block 33 is fixedly connected to the outer surface of the rotating shaft 32. A baffle 34 is fixedly connected to one side of the L-shaped block 33. When the burner is not in use, the rotating shaft 32 can be rotated to control the rotation of the L-shaped block 33 and the baffle 34, so that one side of the baffle 34 is attached to one end of the nozzle 6, sealing the nozzle 6 as much as possible to prevent dust from entering the interior of the nozzle 6 and affecting the flame effect emitted from the nozzle 6. A round rod 35 is fixedly connected to one side of the rotating shaft 32. The round rod 35 is a magnetic rod. The rectangular blocks 31 are made of metal iron. When the rotating shaft 32 is rotated to open the baffle 34, one end of the magnetic round rod 35 will contact the outer surface of the rectangular block 31 and magnetically attract to fix the position of the rotating shaft 32 and the baffle 34.

[0032] Working principle: When installing the burner, first connect the solenoid valve tube 4 at one end of the combustion chamber 1 to the solenoid valve circuit. Then, pass the two screws 26 at the top of the sealing ring 25 through the positioning hole 24 and make the top part of the sealing ring 25 located inside the chuck 23 and fit against the top of the inner wall of the chuck 23. Then, put the threaded ring 27, which is fixed on the outer surface of the chuck 23 by the elastic rope 210, onto the outer surface of the screws 26. Rotate the threaded ring 27 and move it downward on the surface of the screws 26 to press the side with the rubber gasket 29 against the surface of the chuck 23, thus fixing the position of the sealing ring 25 and the chuck 23. Connect the sealing ring 25 and the ring 22. Then connect the hydrogen delivery pipeline to the connecting pipe 5. After the connection is completed, push the ring 22 to rotate by hand against the protrusion 28 on the outer surface of the ring 22, so that the ring 22 is on the outer surface of the connecting pipe 5 where the threaded groove 21 is provided. The sealing ring 25 is placed on the outside of the connection between the connecting pipe 5 and the hydrogen delivery pipeline by rotating and moving downwards. This further seals the connection and restricts the relative positions between the connecting pipe 5 and the hydrogen delivery pipeline. At the same time, the outer surface shape of the sealing ring 25 can be reinforced by the positioning rod 211 to minimize deformation of the bottom end of the sealing ring 25 and affect the sealing effect. When using the burner, the rotating shaft 32 controls the baffle 34 to rotate and open one end of the nozzle 6. The solenoid valve is turned on and hydrogen enters the combustion chamber 1 through the connecting pipe 5, allowing the hydrogen to burn. The fully burned hydrogen will spray a flame from one end of the nozzle 6. When the sealing ring 25 needs to be replaced, the two threaded rings 27 can be rotated to move the threaded rings 27 away from the surface of the screw 26. Then, the sealing ring 25 can be pulled out of the positioning hole 24 by pulling the screw 26 out. The sealing ring 25 can then be removed.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A burner for a hydrogen combustion boiler, comprising a combustion chamber (1), characterized in that: A solenoid valve tube (4) is provided on one side of the combustion chamber (1), a connecting pipe (5) is provided at the bottom of the combustion chamber (1), a nozzle (6) is provided at one end of the combustion chamber (1), a sealing device (2) is provided on the outer surface of the connecting pipe (5), the sealing device (2) includes a ring (22) and a sealing ring (25), a chuck (23) is fixedly connected to the bottom end of the ring (22), two positioning holes (24) are opened on the outer surface of the chuck (23), two screws (26) are fixedly connected to the top end of the sealing ring (25), a threaded ring (27) is threadedly connected to the outer surface of the screws (26), a threaded groove (21) is opened on the outer surface of the connecting pipe (5), and the inner wall of the ring (22) is threadedly connected to the outer surface of the connecting pipe (5) where the threaded groove (21) is provided.

2. The burner nozzle for a hydrogen combustion boiler according to claim 1, characterized in that: The bottom of the inner wall of the sealing ring (25) is fixedly connected to a convex ring (212), which is made of rubber.

3. The burner nozzle for a hydrogen combustion boiler according to claim 2, characterized in that: The top end of the ring (22) is fixedly connected with several protrusions (28), which are distributed circumferentially on the outer surface of the ring (22).

4. The burner nozzle for a hydrogen combustion boiler according to claim 3, characterized in that: The bottom end of the chuck (23) is fixedly connected to a plurality of positioning rods (211), and the bottom end of the positioning rods (211) is provided with a protrusion.

5. A burner for a hydrogen combustion boiler according to claim 4, characterized in that: A gasket (29) is fixedly connected to the bottom end of the threaded ring (27), and the gasket (29) is made of rubber.

6. A burner for a hydrogen combustion boiler according to claim 5, characterized in that: Two elastic ropes (210) are fixedly connected to the top of the chuck (23), and the ends of the two elastic ropes (210) away from the chuck (23) are fixedly connected to one side of the threaded ring (27).

7. A burner for a hydrogen combustion boiler according to claim 6, characterized in that: The top of the nozzle (6) is provided with a dustproof device (3). The dustproof device (3) includes two rectangular blocks (31). The bottom ends of the two rectangular blocks (31) are fixedly connected to the outer surface of the nozzle (6). The inner wall of the rectangular blocks (31) is rotatably connected to a rotating shaft (32). The outer surface of the rotating shaft (32) is fixedly connected to an L-shaped block (33). A baffle (34) is fixedly connected to one side of the L-shaped block (33).

8. A burner for a hydrogen combustion boiler according to claim 7, characterized in that: A round rod (35) is fixedly connected to one side of the rotating shaft (32). The round rod (35) is a magnetic rod, and the rectangular block (31) is made of iron.

Images