Quasi-full premixing type ultra-low nitrogen burner

Abstract

The utility model relates to the technical field of combustors, and discloses a quasi-full premixing type ultra-low nitrogen combustor which comprises a combustor body, two inserting grooves are formed in the top of an opening of the combustor body, sliding grooves are symmetrically formed in the positions, located on the two sides of the inserting grooves, of the combustor body, and filtering assemblies are inserted into the two inserting grooves. Each filtering assembly comprises a filtering plate inserted into the corresponding inserting groove, a sealing frame is fixedly connected to the outer wall of each filtering plate, sliding blocks are fixedly connected to the bottoms of the two sides of each sealing frame, and inserting rods are fixedly connected to the bottoms of the sliding blocks. And in the state that the combustor body is not shut down, the filtering assembly close to the opening can be conveniently replaced, the working efficiency of the combustor body is improved, operation is convenient and fast, the installation and disassembly efficiency of the filtering assembly can be improved, and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, and more specifically to a quasi-full premixed ultra-low nitrogen burner. Background Art

[0002] Burners are a general term for devices that spray fuel and air in a certain way for mixed combustion. Burners are divided into industrial burners, burners, civil burners, and special burners according to their types and application areas. They are mostly made of corrosion-resistant and high-temperature-resistant materials such as stainless steel or titanium.

[0003] The quasi-fully premixed ultra-low nitrogen burner is a burner used in industrial boilers, hot air furnaces and other equipment. It is designed to reduce the emission of nitrogen oxides. It adopts premixed combustion technology, that is, the fuel and air are premixed before entering the combustion chamber for combustion, so as to achieve a more complete and uniform combustion process, thereby reducing fuel consumption and the emission of harmful gases in the flue gas.

[0004] When the premixed ultra-low nitrogen burner is in use, the outside air enters directly through the burner inlet. However, due to the large amount of impurities contained in the air, it is easy for the impurities to burn inside the burner during the operation of the burner, and the ashes after the impurities are burned accumulate inside the burner, which can easily cause the problem of internal blockage of the burner and even cause damage to the burner. For this reason, we propose a quasi-full premixed ultra-low nitrogen burner to solve the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a quasi-full premixed ultra-low nitrogen burner to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solutions: a quasi-full premixed ultra-low nitrogen burner, comprising a burner body, wherein two slots are provided at the top of an opening of the burner body, and slide grooves are symmetrically provided on both sides of the burner body located at the slots, and filter components are inserted inside the two slots, and the filter components include filter plates inserted in the slots, and the outer wall of the filter plate is fixedly connected with a sealing frame, and the bottom of the two sides of the sealing frame is fixedly connected with sliders, and the bottom of the slider is fixedly connected with an insertion rod, and the burner body is provided with a jack at the bottom of the slide groove, and a first pull handle is fixedly connected to the middle of the top of the sealing frame, and the burner body is symmetrically provided with compression and limiting mechanisms on both sides of the top of the two slots, and a cleaning brush component is provided at the bottom of the opening of the burner body, and the burner body is fixedly connected with a gas inlet near the bottom of the opening.

[0007] Preferably, the clamping and limiting mechanism includes a fixed rod fixedly connected to the top of the burner body, the bottom of the fixed rod is located at the top of the burner body and is movably sleeved with a movable plate, the top of the fixed rod is fixedly connected with a stop block, the fixed rod is located between the stop block and the movable plate and is sleeved with a spring, the top of the movable plate is located on both sides of the fixed rod and is fixedly connected with U-shaped pull rods, and the bottom of the movable plate is symmetrically fixedly connected with limiting pressure blocks on both sides.

[0008] Preferably, the limiting pressure block is matched with the slot, and the bottom of the limiting pressure block is in contact with the top of the sealing frame.

[0009] Preferably, the cleaning brush assembly includes a brush plate arranged at the bottom of one side of the burner body opening, and sliding grooves are symmetrically fixedly connected at both ends of the brush plate on one side close to the filter plate, and a second handle is fixedly connected to the middle of the top of the brush plate.

[0010] Preferably, the burner body is symmetrically opened on both sides of the sealing frame, the sliding grooves constitute a sliding connection structure, and the brush end of the brush plate is in contact with the sealing frame.

[0011] Preferably, the sliding block and the sliding groove form a sliding connection structure, and the inserting rod is matched with the inserting hole.

[0012] Technical effects and advantages of the utility model:

[0013] 1. When the utility model is in use, the two sets of filter components are arranged, which not only increases the quality of the air after filtration, but also facilitates the replacement of the filter component near the opening without stopping the burner body, thereby improving the working efficiency of the burner body. When the filter component needs to be replaced, at this time, it is only necessary to pull the U-shaped pull rod upward, and the U-shaped pull rod drives the movable plate to move up along the fixed rod to squeeze the spring, and the movable plate drives the limit pressure block to move up and out of the slot, and then the U-shaped pull rod is rotated 90 degrees, and the pulling force on the second pull handle is released, so that the limit pressure block abuts against the top of the burner body between the two slots, and then, It is only necessary to pull the first handle upwards, and the first handle will drive the filter plate to move up, so that it is convenient to pull out the filter plate, align the filter plate with the slot and insert it, so that the slider moves down to the bottom along the slide groove, so that the insertion rod moves down and inserts into the socket, and the filter assembly can be replaced. Then, it is only necessary to pull the U-shaped pull rod upwards, rotate the U-shaped pull rod 90 degrees, release the pulling force applied to the U-shaped pull rod, and under the rebound force of the spring, the limit pressure block will be pushed down along the slot and abut against the top of the sealing frame to complete the limit fixation of the filter plate. The operation is convenient, which is conducive to improving the efficiency of installation and disassembly of the filter assembly and convenient maintenance.

[0014] 2. The utility model is provided with a cleaning brush assembly. When the device is used, the second handle is manually pulled, and the second handle drives the brush plate to move up and down, thereby facilitating the cleaning of dust and impurities on the surface of the filter plate. The operation is convenient and is beneficial to prolonging the service life of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the connection structure at the opening of the burner body of the utility model.

[0017] Figure 3 for Figure 2 A is an enlarged structural diagram of FIG.

[0018] Figure 4 This is a schematic diagram of the structure of the filter assembly of the utility model.

[0019] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at B.

[0020] Figure 6 for Figure 4 Enlarged structural diagram at C.

[0021] The accompanying drawings are marked as follows: 1. burner body; 2. clamping and limiting mechanism; 21. fixing rod; 22. spring; 23. stop block; 24. movable plate; 25. limiting pressure block; 26. U-shaped pull rod; 3. slot; 4. filter assembly; 41. filter plate; 42. sealing frame; 43. first handle; 44. slider; 45. insertion rod; 5. sliding groove; 6. cleaning brush assembly; 61. brush plate; 62. second handle; 63. sliding groove; 7. gas inlet; 8. slide groove; 9. socket. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The quasi-full premixed ultra-low nitrogen burner involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0023] The utility model provides a quasi-full premixed ultra-low nitrogen burner, please refer to Figure 1-4As shown, it includes a burner body 1, two slots 3 are provided at the top of the opening of the burner body 1, slide grooves 8 are symmetrically provided on both sides of the slots 3 of the burner body 1, filter components 4 are inserted inside the two slots 3, the filter components 4 include filter plates 41 inserted inside the slots 3, the outer wall of the filter plate 41 is fixedly connected with a sealing frame 42, the bottom of both sides of the sealing frame 42 is fixedly connected with sliders 44, the bottom of the slider 44 is fixedly connected with an insertion rod 45, the burner body 1 is provided with a socket 9 at the bottom of the slide groove 8, the middle of the top of the sealing frame 42 is fixedly connected with a first handle 43, the burner body 1 is symmetrically provided with a clamping limit mechanism 2 on both sides of the top of the two slots 3, the burner body 1 is provided with a cleaning brush assembly 6 at the bottom of the opening, and the burner body 1 is fixedly connected with a gas inlet 7 near the bottom of the opening.

[0024] In the embodiment of the present application, when in use, the two sets of filter assemblies 4 are provided, which not only increases the quality of the air after filtration, but also facilitates the replacement of the filter assembly 4 near the opening without stopping the burner body 1, thereby improving the working efficiency of the burner body 1. By manually pulling the second handle 62, the second handle 62 drives the brush plate 61 to move up and down along 5, so as to facilitate the cleaning of dust and impurities on the surface of the filter plate 41. The operation is convenient and it is convenient to increase the service life of the filter plate 41. When the filter assembly 4 needs to be replaced, at this time, it is only necessary to pull the U-shaped pull rod 26 upwards, and the U-shaped pull rod 26 drives the movable plate 24 to move up along the fixed rod 21 to squeeze the spring 22, and the movable plate 24 drives the limiting pressure block 25 to move up and out of the slot 3, and then the U-shaped pull rod 26 is rotated 90 degrees to release the second pull handle 6. 2, so that the limiting pressure block 25 abuts against the top of the burner body 1 between the two slots 3. Then, it is only necessary to pull the first pull handle 43 upwards, and the first pull handle 43 drives the filter plate 41 to move upward, so that it is convenient to pull out the filter plate 41, align the filter plate 41 with the slot 3 and insert it, so that the slider 44 moves down to the bottom along the slide groove 8, so that the insertion rod 45 moves down and is inserted into the insertion hole 9, and the filter assembly 4 can be replaced. Then, it is only necessary to pull the U-shaped pull rod 26 upwards, rotate the U-shaped pull rod 26 90 degrees, and then release the tension applied to the U-shaped pull rod 26. Under the rebound force of the spring 22, the limiting pressure block 25 is pushed down along the slot 3 and abuts against the top of the sealing frame 42, thereby completing the limiting fixation of the filter plate 41. The operation is convenient and it is convenient to quickly replace and maintain the filter assembly 4.

[0025] Furthermore, the clamping and limiting mechanism 2 includes a fixed rod 21 fixedly connected to the top of the burner body 1, the bottom of the fixed rod 21 is located at the top of the burner body 1 and is movably sleeved with a moving plate 24, the top of the fixed rod 21 is fixedly connected with a stop block 23, the fixed rod 21 is located between the stop block 23 and the moving plate 24 and is sleeved with a spring 22, the top of the moving plate 24 is located on both sides of the fixed rod 21 and is fixedly connected with a U-shaped pull rod 26, and the bottom of the moving plate 24 is symmetrically fixedly connected with a limiting pressure block 25 on both sides, the limiting pressure block 25 is adapted to the slot 3, and the bottom of the limiting pressure block 25 contacts the top of the sealing frame 42. When in use, it is only necessary to pull the U-shaped pull rod 26 upwards, rotate the U-shaped pull rod 26 90 degrees, and then release the tension applied to the U-shaped pull rod 26. Under the rebound force of the spring 22, the limiting pressure block 25 will be pushed down along the slot 3 and abut against the top of the sealing frame 42, thereby completing the limiting fixation of the filter plate 41, thereby completing the installation of the filter assembly 4.

[0026] Furthermore, the cleaning assembly 6 includes a brush plate 61 arranged at the bottom of one side of the opening of the burner body 1, and the two ends of the brush plate 61 close to the filter plate 41 are symmetrically fixedly connected with sliding grooves 63, and the middle of the top of the brush plate 61 is fixedly connected with a second handle 62. The burner body 1 is symmetrically provided with 5 on both sides of the sealing frame 42, and the sliding grooves 63 and 5 constitute a sliding connection structure. When the brush end of the brush plate 61 is in contact with the sealing frame 42 for use, the second handle 62 is manually pulled, and the second handle 62 drives the brush plate 61 to move up and down along 5, thereby facilitating the cleaning of dust and impurities on the surface of the filter plate 41. The operation is convenient, and it is convenient to increase the service life of the filter plate 41.

[0027] Furthermore, the slider 44 and the slide groove 8 form a sliding connection structure, and the insertion rod 45 is adapted to the insertion hole 9. When in use, the slider 44 moves up and down along the slide groove 8 to facilitate the plug-in installation of the filter plate 41.

[0028] The working principle of the utility model: when in use, the two sets of filter components 4 are set, which not only increases the quality of the air after filtration, but also facilitates the replacement of the filter component 4 near the opening without stopping the burner body 1, thereby improving the working efficiency of the burner body 1. By manually pulling the second handle 62, the second handle 62 drives the brush plate 61 to move up and down along 5, so as to facilitate the cleaning of dust and impurities on the surface of the filter plate 41. The operation is convenient and it is convenient to increase the service life of the filter plate 41. When the filter component 4 needs to be replaced, at this time, it is only necessary to pull the U-shaped pull rod 26 upwards, and the U-shaped pull rod 26 drives the movable plate 24 to move up along the fixed rod 21 to squeeze the spring 22, and the movable plate 24 drives the limiting pressure block 25 to move up and out of the slot 3, and then the U-shaped pull rod 26 is rotated 90 degrees to release the second pull handle. 62, so that the limiting pressure block 25 abuts against the top of the burner body 1 between the two slots 3. Then, it is only necessary to pull the first handle 43 upwards, and the first handle 43 drives the filter plate 41 to move upward, so that it is convenient to pull out the filter plate 41, align the filter plate 41 with the slot 3 and insert it, so that the slider 44 moves down to the bottom along the slide groove 8, so that the insertion rod 45 moves down and is inserted into the insertion hole 9, and the filter assembly 4 can be replaced. Then, it is only necessary to pull the U-shaped pull rod 26 upwards, rotate the U-shaped pull rod 26 90 degrees, and then release the pulling force applied to the U-shaped pull rod 26. Under the rebound force of the spring 22, the limiting pressure block 25 will be pushed down along the slot 3 and abut against the top of the sealing frame 42, thereby completing the limiting fixation of the filter plate 41. The operation is convenient, and it is convenient to quickly replace and maintain the filter assembly 4.

[0029] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0030] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A quasi-full premixed ultra-low nitrogen burner, comprising a burner body (1), characterized in that: The burner body (1) is provided with two slots (3) at the top of the opening, and the burner body (1) is provided with slide grooves (8) symmetrically on both sides of the slots (3). A filter assembly (4) is inserted inside the two slots (3), and the filter assembly (4) comprises a filter plate (41) inserted inside the slots (3). The outer wall of the filter plate (41) is fixedly connected with a sealing frame (42), and the bottom of both sides of the sealing frame (42) is fixedly connected with a slider (44), and the bottom of the slider (44) is fixedly connected with an insertion rod (45). The burner body (1) is provided with a plug hole (9) at the bottom of the slide groove (8), and a first pull handle (43) is fixedly connected to the middle of the top of the sealing frame (42). The burner body (1) is symmetrically provided with a clamping limit mechanism (2) on both sides of the top of the two slots (3), and a cleaning brush assembly (6) is provided at the bottom of the opening of the burner body (1). The burner body (1) is fixedly connected with a gas inlet (7) near the bottom of the opening.

2. A quasi-full premixed ultra-low nitrogen burner according to claim 1, characterized in that: The clamping and limiting mechanism (2) comprises a fixed rod (21) fixedly connected to the top of the burner body (1); the bottom of the fixed rod (21) is located at the top of the burner body (1) and is movably sleeved with a movable plate (24); the top of the fixed rod (21) is fixedly connected with a stop block (23); the fixed rod (21) is sleeved with a spring (22) between the stop block (23) and the movable plate (24); the top of the movable plate (24) is located at both sides of the fixed rod (21) and is fixedly connected with U-shaped pull rods (26); and the bottom of the movable plate (24) is symmetrically fixedly connected with limit pressure blocks (25) on both sides.

3. A quasi-full premixed ultra-low nitrogen burner according to claim 2, characterized in that: The limiting pressure block (25) is adapted to the slot (3), and the bottom of the limiting pressure block (25) is in contact with the top of the sealing frame (42).

4. A quasi-full premixed ultra-low nitrogen burner according to claim 1, characterized in that: The cleaning brush assembly (6) comprises a brush plate (61) arranged at the bottom of one side of the opening of the burner body (1), and sliding grooves (63) are symmetrically fixedly connected at both ends of one side of the brush plate (61) close to the filter plate (41), and a second pull handle (62) is fixedly connected in the middle of the top of the brush plate (61).

5. A quasi-full premixed ultra-low nitrogen burner according to claim 4, characterized in that: The burner body (1) is symmetrically provided with (5) on both sides of the sealing frame (42), the sliding groove (63) and (5) form a sliding connection structure, and the brush end of the brush plate (61) is in contact with the sealing frame (42).

6. The quasi-full premixed ultra-low nitrogen burner according to claim 1, characterized in that: The sliding block (44) and the sliding groove (8) form a sliding connection structure, and the inserting rod (45) is matched with the inserting hole (9).

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