Wall type hedging swirling burner

Abstract

The utility model discloses a wall type hedging swirling burner, which comprises a burner main body and a cover plate arranged on the burner main body, an air regulator capable of regulating secondary air resistance and secondary air swirling intensity through blade opening change is arranged on the burner main body, and a connecting rod connected with the air regulator is arranged on the cover plate. And when the connecting rod moves towards one side close to and far away from the air regulator, the opening degree of the blades in the air regulator is driven to change. According to the utility model, the driving assembly is arranged at one end, far away from the air regulator, of the connecting rod, and the locking mechanism is used for locking the driving assembly, so that when the air regulator needs to be frequently regulated, only the locking mechanism and the driving assembly need to be unlocked, and the connecting rod can be manually pushed to drive the blades in the air regulator to be regulated; and the device can be quickly adjusted to a required position according to the indication of the annular scale groove and then locked, the whole adjusting process is convenient and quick, and the subsequent debugging efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler coal powder combustion, in particular to a wall-type counter-swirling burner. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Wall-mounted hedge burners are burners that are mounted on the wall and are usually used for industrial or commercial purposes, such as boiler rooms, heating systems, etc. This type of burner is designed to improve combustion efficiency through the hedge effect of flames, while ensuring that the heat generated by combustion can be evenly distributed in the furnace, thereby achieving energy saving and environmental protection.

[0004] Because the opening position of the inner and outer air regulator blades determines the resistance of the burner's secondary air and the swirl intensity of the secondary air, which affects the ignition and stable combustion of the pulverized coal airflow, during the initial coal-fired operation, it is necessary to determine the positions of the inner and outer adjustable blades and air regulating sleeves of all pulverized coal burners when the boiler has a stable full load and all burners are in operation.

[0005] The current wall-mounted hedge burner uses a rotating and twisting method to adjust the front and rear position of the air regulating ring or the air regulating sleeve. However, since multiple burners are often installed on a boiler and multiple tests are required during the initial coal-fired operation to determine the optimal position, a lot of time is required to twist and adjust, and the debugging efficiency is low. Utility Model Content

[0006] The utility model aims to solve the above-mentioned shortcomings and provide a wall-type counter-swirling burner to achieve the purpose of easy debugging and high debugging efficiency.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions: a wall-type counter-swirling burner, comprising a burner body and a cover plate arranged on the burner body, the burner body is provided with an air regulator capable of adjusting the secondary air resistance and the secondary air swirling intensity by changing the blade opening, the cover plate is provided with a connecting rod connected to the air regulator, when the connecting rod moves toward and away from the air regulator, the blade opening in the air regulator is changed, a driving assembly penetrating the cover plate is provided at one end of the connecting rod away from the air regulator, when the driving assembly moves toward and away from the air regulator, the connecting rod is driven to move synchronously, and a locking mechanism for quickly locking the driving assembly is provided on the cover plate;

[0008] The drive assembly is provided with an annular scale groove for assisting positioning when the drive assembly moves.

[0009] Furthermore, the driving assembly includes a sleeve sleeved outside the connecting rod, and the end of the sleeve away from the connecting rod is threadedly connected to a fine-tuning screw inserted into the sleeve, the fine-tuning screw is rotatably connected to the connecting rod, and when the fine-tuning screw moves axially along the sleeve, the connecting rod moves along with it;

[0010] The annular scale groove is arranged on the sleeve, and the locking mechanism locks the sleeve by clamping the sleeve.

[0011] Further, the locking mechanism includes a fixed collar disposed on the cover plate and sleeved with the sleeve, a plurality of clips are disposed on the side of the fixed collar away from the cover plate, and the clips do not contact the sleeve when in a natural state, and a movable collar sleeved outside the clips is disposed on the end of the fixed collar away from the cover plate, and when the movable collar moves toward the side of the fixed collar, the plurality of clips are pushed by the movable collar to move toward the side close to the sleeve, and two annular baffles are disposed on the movable collar;

[0012] The locking mechanism also includes a guide rod passing through the cover plate, and a toggle plate inserted between two annular baffles is arranged at one end of the guide rod close to the movable collar, and a tension spring is arranged between the toggle plate and the cover plate. When the tension spring is in a natural state, the movable collar squeezes the clip and makes the clip close to the sleeve.

[0013] Furthermore, the distance between the two annular baffles is greater than the thickness of the toggle plate, and the movable collar is threadedly connected to the fixed collar.

[0014] Furthermore, the fine-tuning screw is provided with a positioning assembly for assisting positioning when the fine-tuning screw moves, and the positioning assembly includes a fixing seat provided on the fine-tuning screw, a connecting column is provided on the side of the fixing seat close to the sleeve, and a positioning ring is provided on the end of the connecting column away from the fixing seat and sleeved outside the sleeve;

[0015] The positioning ring is within the range of the annular scale groove when it reciprocates along the sleeve axis.

[0016] The beneficial effects of the utility model are embodied in:

[0017] The utility model arranges a driving assembly at the end of the connecting rod away from the air regulator, and uses a locking mechanism to lock the driving assembly. When the air regulator needs to be adjusted frequently, it only needs to unlock the locking mechanism, and the driving assembly can be manually pushed to drive the connecting rod to drive the blades in the air regulator to adjust, and it can be quickly adjusted to the required position according to the indication of the annular scale groove and then locked. The whole adjustment process is convenient and fast, and the subsequent debugging efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the utility model;

[0019] Figure 2 for Figure 1 A local enlarged schematic diagram of point A shown;

[0020] Figure 3 A three-dimensional view of the drive assembly and the locking mechanism of the utility model;

[0021] Figure 4 It is a schematic diagram of assembling the fixed collar and the movable collar of the utility model;

[0022] Figure 5 It is a three-dimensional view of the positioning component of the utility model.

[0023] In the figure:

[0024] 1. Burner body; 2. Cover plate; 3. Air regulator; 4. Connecting rod; 5. Drive assembly; 51. Sleeve; 52. Fine-tuning screw; 6. Locking mechanism; 61. Fixed collar; 62. Clip; 63. Movable collar; 64. Annular baffle; 65. Guide rod; 66. Toggle plate; 67. Tension spring; 7. Positioning assembly; 71. Fixed seat; 72. Connecting column; 73. Positioning ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 The utility model discloses a wall-type counter-swirling burner, comprising a burner body 1 and a cover plate 2 arranged on the burner body 1. The burner body 1 is provided with an air regulator 3 which can adjust the secondary wind resistance and the secondary wind swirling strength by changing the blade opening. The cover plate 2 is provided with a connecting rod 4 connected with the air regulator 3. When the connecting rod 4 moves toward and away from the air regulator 3, the blade opening in the air regulator 3 is changed. A driving component 5 penetrating the cover plate 2 is arranged at one end of the connecting rod 4 away from the air regulator 3. When the driving component 5 moves toward and away from the air regulator 3, the connecting rod 4 is driven to move synchronously. A locking mechanism 6 for quickly locking the driving component 5 is arranged on the cover plate 2.

[0027] The driving assembly 5 is provided with an annular scale groove for assisting positioning when the driving assembly 5 moves.

[0028] The utility model arranges a driving assembly 5 at one end of the connecting rod 4 away from the air regulator 3, and uses a locking mechanism 6 to lock the driving assembly 5. When the air regulator 3 needs to be adjusted frequently, it only needs to unlock the locking mechanism 6, and the driving assembly 5 can be manually pushed to drive the connecting rod 4 to drive the blades in the air regulator 3 to be adjusted, and can be quickly adjusted to the required position according to the indication of the annular scale groove and then locked. The whole adjustment process is convenient and fast, and the subsequent debugging efficiency can be improved.

[0029] It should be noted that the burner body 1, the cover plate 2, the air register 3 and the connecting rod 4 are all mature existing technologies, and their connection methods and working principles are not described in detail here.

[0030] In one embodiment, the driving assembly 5 includes a sleeve 51 sleeved outside the connecting rod 4, and one end of the sleeve 51 away from the connecting rod 4 is threadedly connected with a fine-tuning screw 52 inserted into the sleeve 51, and the fine-tuning screw 52 is rotatably connected to the connecting rod 4 and when the fine-tuning screw 52 moves axially along the sleeve 51, the connecting rod 4 moves along with it;

[0031] The annular scale groove is provided on the sleeve 51 , and the locking mechanism 6 locks the sleeve 51 by clamping the sleeve 51 .

[0032] This design allows the sleeve 51 to drive the connecting rod 4 to make a quick adjustment, and then the fine-tuning screw 52 can be rotated to drive the connecting rod 4 to move and fine-tune again, so that the adjustment of the blade opening in the air regulator 3 is more accurate.

[0033] It should be noted that a quadrangular prism is provided at one end of the fine-tuning screw 52 outside the sleeve 51 , so that an operator can turn the fine-tuning screw 52 with a wrench.

[0034] In one embodiment, the locking mechanism 6 includes a fixed collar 61 disposed on the cover plate 2 and sleeved with the sleeve 51. A plurality of clips 62 are disposed on the side of the fixed collar 61 away from the cover plate 2. The clips 62 do not contact the sleeve 51 when in a natural state. A movable collar 63 sleeved outside the clips 62 is disposed on the end of the fixed collar 61 away from the cover plate 2. When the movable collar 63 moves toward the side of the fixed collar 61, the plurality of clips 62 are pushed by the movable collar 63 to move toward the side close to the sleeve 51. Two annular baffles 64 are disposed on the movable collar 63.

[0035] The locking mechanism 6 also includes a guide rod 65 that passes through the cover plate 2. A toggle plate 66 that is inserted between two annular baffles 64 is provided at one end of the guide rod 65 close to the movable ring 63. A tension spring 67 is provided between the toggle plate 66 and the cover plate 2. When the tension spring 67 is in a natural state, the movable ring 63 squeezes the clip 62 and makes the clip 62 close to the sleeve 51.

[0036] This design enables the movable collar 63 to squeeze the clip 62 to clamp the sleeve 51 when the tension spring 67 is in a natural state, thereby temporarily fixing the sleeve 51, which is convenient for the operator to verify the debugging effect after adjustment. If the debugging effect does not meet the requirements, the movable collar 63 can be driven away from the fixed collar 61 by pulling the toggle plate 66, so that the clip 62 no longer clamps the sleeve 51, thereby achieving quick unlocking of the sleeve 51 and facilitating subsequent adjustments.

[0037] In a specific implementation, in order to facilitate personnel to pull the toggle plate 66 , a T-shaped handle is provided on the side of the toggle plate 66 away from the tension spring 67 .

[0038] In one embodiment, the distance between the two annular baffles 64 is greater than the thickness of the shifting plate 66 , and the movable collar 63 is threadedly connected to the fixed collar 61 .

[0039] With this design, the toggle plate 66 can not only push the annular baffle 64 to drive the movable collar 63 to move, but also can screw the movable collar 63 toward the side close to the fixed collar 61 after the blade opening of all burners is debugged, so that the movable collar 63 is directly connected to the fixed collar 61 through threads, thereby ensuring that the movable collar 63 can provide a stable squeezing force to the clip 62 for a long time, so that the adjusted blade opening can remain unchanged during the operation, thereby improving the working stability.

[0040] In one embodiment, a positioning assembly 7 for assisting positioning when the fine-tuning screw 52 moves is provided on the fine-tuning screw 52. The positioning assembly 7 includes a fixing seat 71 provided on the fine-tuning screw 52. A connecting column 72 is provided on the side of the fixing seat 71 close to the sleeve 51. A positioning ring 73 sleeved on the outside of the sleeve 51 is provided on the end of the connecting column 72 away from the fixing seat 71.

[0041] When the positioning ring 73 reciprocates along the axis of the sleeve 51, it is always within the range of the annular scale groove.

[0042] With this design, the adjustment amount of the fine-tuning screw 52 can be determined by observing the position of the positioning ring 73 on the annular scale groove, thereby making it convenient for the staff to determine whether the adjustment distance of the fine-tuning screw 52 meets the requirements.

[0043] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0045] In addition, "plurality" means two or more.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wall-type counter-swirling burner, comprising a burner body (1) and a cover plate (2) arranged on the burner body (1), wherein the burner body (1) is provided with an air regulator (3) capable of adjusting the secondary air resistance and the secondary air swirling intensity by changing the blade opening, and the cover plate (2) is provided with a connecting rod (4) connected to the air regulator (3), and when the connecting rod (4) moves toward or away from the air regulator (3), the blade opening in the air regulator (3) is driven to change, and the characteristics are: A driving assembly (5) penetrating the cover plate (2) is disposed at one end of the connecting rod (4) away from the air register (3); when the driving assembly (5) moves toward or away from the air register (3), it drives the connecting rod (4) to move synchronously; and a locking mechanism (6) for quickly locking the driving assembly (5) is disposed on the cover plate (2); The drive assembly (5) is provided with an annular scale groove for assisting positioning when the drive assembly (5) moves.

2. A wall-type counter-swirling burner according to claim 1, characterized in that: The driving assembly (5) comprises a sleeve (51) sleeved outside the connecting rod (4); an end of the sleeve (51) away from the connecting rod (4) is threadedly connected with a fine-adjustment screw (52) inserted into the sleeve (51); the fine-adjustment screw (52) is rotationally connected to the connecting rod (4); when the fine-adjustment screw (52) moves axially along the sleeve (51), the connecting rod (4) moves along with it; The annular scale groove is arranged on the sleeve (51), and the locking mechanism (6) locks the sleeve (51) by clamping the sleeve (51).

3. A wall-type counter-swirling burner according to claim 2, characterized in that: The locking mechanism (6) comprises a fixed collar (61) which is arranged on the cover plate (2) and sleeved with the sleeve (51); a plurality of clips (62) are arranged on the side of the fixed collar (61) away from the cover plate (2); the clips (62) do not contact the sleeve (51) when in a natural state; a movable collar (63) sleeved outside the clips (62) is arranged on the end of the fixed collar (61) away from the cover plate (2); when the movable collar (63) moves toward the side of the fixed collar (61), the plurality of clips (62) are pushed by the movable collar (63) to move toward the side close to the sleeve (51); and two annular baffles (64) are arranged on the movable collar (63); The locking mechanism (6) further comprises a guide rod (65) penetrating the cover plate (2); a toggle plate (66) inserted between two annular baffles (64) is arranged at one end of the guide rod (65) close to the movable collar (63); a tension spring (67) is arranged between the toggle plate (66) and the cover plate (2); when the tension spring (67) is in a natural state, the movable collar (63) squeezes the clip (62) and makes the clip (62) close to the sleeve (51).

4. A wall-type counter-swirling burner according to claim 3, characterized in that: The distance between the two annular baffles (64) is greater than the thickness of the toggle plate (66), and the movable collar (63) is threadedly connected to the fixed collar (61).

5. The wall-type counter-swirling burner according to claim 2, characterized in that: The fine-tuning screw (52) is provided with a positioning assembly (7) for assisting positioning when the fine-tuning screw (52) moves, and the positioning assembly (7) comprises a fixing seat (71) arranged on the fine-tuning screw (52), a connecting column (72) is arranged on a side of the fixing seat (71) close to the sleeve (51), and a positioning ring (73) sleeved on the outside of the sleeve (51) is arranged on an end of the connecting column (72) away from the fixing seat (71); The positioning ring (73) is within the range of the annular scale groove when it reciprocates along the axis of the sleeve (51).

Images