Secondary air door structure of combustor

Abstract

The utility model discloses a secondary air door structure of a combustor, which relates to the field of secondary air door structures, and comprises an air duct, the lower surface of the air duct is fixedly connected with a base, the upper surface of the air duct is fixedly connected with a combustion cylinder, the inner wall of the air duct is fixedly connected with an air inlet pipe, and the inner wall of the air duct is fixedly connected with a barometer. The inner wall of the air duct is fixedly connected with an air adjusting heating mechanism. Air in the air cylinder passes through the air outlet pipes which are evenly distributed at equal intervals and is evenly conveyed to the position below the H-shaped disc, the air is conveyed to the position above the H-shaped disc from the position below the H-shaped disc through the inclined air adjusting fan blades, the spiral pipe is in a spiral shape, the time that the air stays in the combustion cylinder is prolonged, and the combustion efficiency is improved. The multiple U-shaped pipes convey air for the second time, the time of the air in the combustion cylinder is prolonged, the air absorbs the temperature in the combustion cylinder for a longer time, and the situation that the conveyed air is little and cannot reach the set temperature is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the secondary air door structure field, especially in kind of secondary air door structure of combustor. BACKGROUND

[0002] The main role of the secondary air door is to adjust the air intake of each combustor, ensuring the stability and efficiency of the combustion process. By controlling the opening of the secondary air door, the air intake of each combustor can be balanced, ensuring efficient combustion of each fire, thereby improving combustion efficiency.

[0003] Although the existing secondary air door structure can adjust the amount of air intake, the air intake after adjustment cannot be evenly distributed on the air door. In addition, when the existing secondary air door structure heats the delivered air, the air contacts the heating part for a short time, and the delivered air absorbs less heat during the heating process, which may not reach the set temperature, thus having certain deficiencies. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of secondary air door structure of combustor to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of secondary air door structure of combustor, including wind cylinder, the lower surface of the wind cylinder is fixedly connected with base, the upper surface of the wind cylinder is fixedly connected with combustion cylinder, the inner wall of the wind cylinder is fixedly connected with air intake pipe, the inner wall of the wind cylinder is fixedly connected with barometer, the inner wall of the wind cylinder is fixedly connected with air regulating heating mechanism;

[0006] The air regulating heating mechanism includes H-shaped disc fixedly connected to the inner wall of the wind cylinder, the inner wall of the H-shaped disc is rotatably connected with a plurality of driving shafts, the surface of a plurality of driving shafts is fixedly connected with air regulating fan blade, the inner wall of the H-shaped disc is installed with connecting disc, one end of a plurality of air regulating fan blades is rotatably connected with the inner wall of connecting disc, the surface of a plurality of driving shafts is fixedly connected with swing rod, the surface of two adjacent swing rods is rotatably connected with the same linkage rod, the inner wall of the sealing ring is fixedly connected with the inner wall of the sealing ring, the surface of one of the driving shafts is fixedly connected with adjusting shaft, and the inner wall of the sealing ring is rotatably connected with the adjusting shaft.

[0007] Preferably, the surface of the sealing ring is fixedly connected with a connecting block, the inner wall of the connecting block is slidably connected with a T-shaped cylindrical positioning pin, and one end of the adjusting shaft is fixedly connected with a hand wheel.

[0008] Preferably, the surface of the T-shaped cylindrical positioning pin is sleeved with a spring, the bottom end of the spring is fixedly connected with the upper surface of the connecting block, and the top end of the spring is fixedly connected with the surface of the T-shaped cylindrical positioning pin.

[0009] Preferably, the surface of the adjusting shaft is provided with a plurality of slots, and the T-shaped cylindrical positioning pin is matched with the inner wall of the slots.

[0010] Preferably, the inner wall of the air duct is fixedly connected with a plurality of air outlet pipes, and the plurality of air outlet pipes are installed below the H-shaped disc.

[0011] Preferably, the inner wall of the combustion cylinder is fixedly connected with an upper sealing plate and a lower sealing plate, the inner wall of the lower sealing plate is fixedly connected with a plurality of spiral pipes, the inner wall of the spiral pipe is fixedly connected with a plurality of U-shaped pipes, and the top end of the U-shaped pipe penetrates through the upper surface of the upper sealing plate.

[0012] Preferably, the inner wall of the combustion cylinder is fixedly connected with a plurality of first burners, and the upper surface of the lower sealing plate is fixedly connected with a second burner.

[0013] In conclusion, the technical effects and advantages of the present application are as follows:

[0014] 1. In the present application, the air in the air duct is uniformly and equidistantly distributed through a plurality of air outlet pipes and is uniformly delivered to the lower side of the H-shaped disc. The air is delivered from the lower side of the H-shaped disc to the upper side of the H-shaped disc through a plurality of inclined air adjusting fan blades. The spiral pipe is in a spiral shape, thereby increasing the time for the air to stay in the combustion cylinder. The plurality of U-shaped pipes deliver the air for a second time, thereby increasing the time for the air to stay in the combustion cylinder. The air can absorb the temperature in the combustion cylinder for a longer time, thereby preventing the delivered air from being insufficient to reach the set temperature.

[0015] 2. In the present application, when the air volume needs to be adjusted, the adjusting shaft is rotated to drive one of the driving shafts to rotate. The driving shaft is rotated to drive the connected swing rod to rotate. The plurality of linkage rods are connected to change the angles of the plurality of swing rods, thereby realizing the rotation adjustment of the plurality of air adjusting fan blades. Through the above structure, the air volume of the secondary air door can be adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the embodiment of the present application.

[0018] Figure 2 It is a schematic diagram of the sectional structure of the air duct in the embodiment of the present application.

[0019] Figure 3It is the sectional structure schematic view of the combustion cylinder in the embodiment of the utility model;

[0020] Figure 4 It is the three-dimensional structure schematic view of the air adjusting fan blade in the embodiment of the utility model;

[0021] Figure 5 It is the three-dimensional structure schematic view of the air adjusting fan blade in the embodiment of the utility model; Figure 4 The enlarged structure schematic view of A in the embodiment of the utility model.

[0022] In the drawing: 1, air duct; 2, combustion cylinder; 3, base; 4, air inlet pipe; 5, air pressure gauge; 6, upper sealing plate; 7, lower sealing plate; 8, first burner; 9, H-shaped disc; 10, air outlet pipe; 11, second burner; 12, connecting block; 13, spiral pipe; 14, U-shaped pipe; 15, connecting disc; 16, air adjusting fan blade; 17, driving shaft; 18, swing rod; 19, linkage rod; 20, sealing ring; 21, hand wheel; 22, adjusting shaft; 23, insertion slot; 24, T-shaped cylindrical positioning pin; 25, spring. Specific implementation

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Embodiment: refer to Figures 1-5 The combustion cylinder secondary air door structure shown in the drawing, including air duct 1, the lower surface of air duct 1 is fixedly connected with base 3, the upper surface of air duct 1 is fixedly connected with combustion cylinder 2, the inner wall of air duct 1 is fixedly connected with air inlet pipe 4, the inner wall of air duct 1 is fixedly connected with air pressure gauge 5, the inner wall of air duct 1 is fixedly connected with air adjusting and heating mechanism;

[0025] The air adjusting and heating mechanism includes the H-shaped disc 9 fixedly connected to the inner wall of air duct 1, the inner wall of H-shaped disc 9 is rotatably connected with a plurality of driving shafts 17, the surface of a plurality of driving shafts 17 is fixedly connected with air adjusting fan blades 16, the inner wall of H-shaped disc 9 is installed with connecting disc 15, one end of a plurality of air adjusting fan blades 16 is rotatably connected with the inner wall of connecting disc 15, the surface of a plurality of driving shafts 17 is fixedly connected with swing rods 18, the surface of two adjacent swing rods 18 is rotatably connected with the same linkage rod 19, the inner wall of air duct 1 is fixedly connected with sealing ring 20, the surface of one of driving shafts 17 is fixedly connected with adjusting shaft 22, and adjusting shaft 22 is rotatably connected with the inner wall of sealing ring 20.

[0026] By the above structure, by setting the air inlet pipe 4, the air in the air cylinder 1 is transported, by setting the air pressure gauge 5, the pressure of the air entering the air cylinder 1 is known, by setting the H-shaped disc 9, the air is guided to enter through the plurality of air regulating fan blades 16, by setting the connecting disc 15, the rotation support of the plurality of air regulating fan blades 16 is maintained, by setting the sealing ring 20, the sealing of the rotating adjustment shaft 22 is maintained, by setting the adjustment shaft 22, one of the driving shafts 17 is driven to rotate, thereby changing the angle of the swing rod 18 connected thereto, and through the plurality of linkage rods 19, the plurality of swing rods 18 are driven to rotate, and the plurality of air regulating fan blades 16 are angle-adjusted to control the air volume through the H-shaped disc 9.

[0027] Preferably, the surface of the sealing ring 20 is fixedly connected with the connecting block 12, the inner wall of the connecting block 12 is slidingly connected with the T-shaped cylindrical positioning pin 24, and one end of the adjustment shaft 22 is fixedly connected with the hand wheel 21.

[0028] By setting the hand wheel 21, the operator can conveniently rotate the adjustment shaft 22, by setting the connecting block 12, the installation stability of the T-shaped cylindrical positioning pin 24 is maintained, and by setting the T-shaped cylindrical positioning pin 24, the adjustment shaft 22 is limited.

[0029] Preferably, the surface of the T-shaped cylindrical positioning pin 24 is sleeved with the spring 25, the bottom end of the spring 25 is fixedly connected with the upper surface of the connecting block 12, and the top end of the spring 25 is fixedly connected with the surface of the T-shaped cylindrical positioning pin 24.

[0030] By setting the spring 25, the T-shaped cylindrical positioning pin 24 is driven to slide and reset.

[0031] Preferably, the surface of the adjustment shaft 22 is provided with a plurality of insertion slots 23, and the T-shaped cylindrical positioning pin 24 is matched with the inner wall of the insertion slot 23.

[0032] By setting the plurality of insertion slots 23, the T-shaped cylindrical positioning pin 24 is inserted into the corresponding insertion slot 23, the adjustment shaft 22 is limited, and the rotation of the adjustment shaft 22 is prevented.

[0033] Preferably, the inner wall of the air cylinder 1 is fixedly connected with a plurality of air outlet pipes 10, and the plurality of air outlet pipes 10 are installed below the H-shaped disc 9.

[0034] By setting the plurality of air outlet pipes 10, the air in the air cylinder 1 is uniformly transported to the lower side of the H-shaped disc 9.

[0035] Preferably, the inner wall of the combustion cylinder 2 is fixedly connected with the upper sealing plate 6 and the lower sealing plate 7, the inner wall of the lower sealing plate 7 is fixedly connected with a plurality of spiral pipes 13, the inner wall of the spiral pipe 13 is fixedly connected with a plurality of U-shaped pipes 14, and the top end of the U-shaped pipe 14 penetrates through the upper surface of the upper sealing plate 6.

[0036] The space in the combustion cylinder 2 is isolated by arranging the upper sealing plate 6 and the lower sealing plate 7, the time of air staying in the combustion cylinder 2 is increased by arranging the plurality of spiral pipes 13, and the air is transported into the plurality of U-shaped pipes 14, the air is transported twice by arranging the plurality of U-shaped pipes 14, and the time of air staying in the combustion cylinder 2 is increased, so that the air can absorb the temperature in the combustion cylinder 2 for a longer time, and the air transported cannot reach the set temperature.

[0037] Preferably, the inner wall of the combustion cylinder 2 is fixedly connected with the plurality of first burners 8, and the upper surface of the lower sealing plate 7 is fixedly connected with the second burner 11.

[0038] The surfaces of the plurality of U-shaped pipes 14 and the plurality of spiral pipes 13 are heated by arranging the first burners 8 and the second burner 11, so that the temperature in the combustion cylinder 2 is kept constant.

[0039] The working principle of the utility model is: a kind of burner secondary air door structure, when using, air is introduced into air inlet pipe 4, air in wind cylinder 1 is uniformly transported to the lower of H-shaped disc 9 by a plurality of air outlet pipes 10, air is transported to the upper of H-shaped disc 9 from the lower of H-shaped disc 9 by a plurality of inclined air regulating fan blades 16, and enters a plurality of spiral pipes 13, first burner 8 and second burner 11 heat the surfaces of a plurality of U-shaped pipes 14 and a plurality of spiral pipes 13, air in spiral pipe 13 is heated and enters a plurality of U-shaped pipes 14, the travel of air in combustion cylinder 2 is increased, so that air can absorb the temperature in combustion cylinder 2 for a longer time, air transported cannot reach the set temperature, and is discharged through U-shaped pipe 14, when it is needed to adjust the rotation angle of a plurality of air regulating fan blades 16 to control the air passing amount, operator pulls T-shaped cylindrical positioning pin 24 upwards, T-shaped cylindrical positioning pin 24 moves to stretch spring 25 to be longer, the positioning plug-in state of T-shaped cylindrical positioning pin 24 to slot 23 is released, then hand wheel 21 is rotated, hand wheel 21 drives adjusting shaft 22 to rotate, adjusting shaft 22 drives one of driving shafts 17 to rotate, driving shaft 17 drives connected swing lever 18 to rotate, the angle of a plurality of swing levers 18 is changed by the connection of a plurality of link rods 19, the rotation adjustment of a plurality of air regulating fan blades 16 is realized, by the above structure, air heating time is prevented from being short, the set temperature cannot be reached, and the air output of secondary air door can be adjusted.

[0040] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A burner secondary air damper structure comprising a wind tube (1), characterized in that: The lower surface of the air duct (1) is fixedly connected with a base (3), the upper surface of the air duct (1) is fixedly connected with a combustion cylinder (2), the inner wall of the air duct (1) is fixedly connected with an air inlet pipe (4), the inner wall of the air duct (1) is fixedly connected with an air pressure gauge (5), and the inner wall of the air duct (1) is fixedly connected with an air adjusting and heating mechanism. The air adjusting and heating mechanism comprises an H-shaped disc (9) fixedly connected to the inner wall of the air duct (1), a plurality of driving shafts (17) rotatably connected to the inner wall of the H-shaped disc (9), air adjusting fan blades (16) fixedly connected to the surfaces of the plurality of driving shafts (17), a connecting disc (15) mounted on the inner wall of the H-shaped disc (9), one end of each of the plurality of air adjusting fan blades (16) being rotatably connected to the inner wall of the connecting disc (15), swing rods (18) fixedly connected to the surfaces of the plurality of driving shafts (17), a same linkage rod (19) rotatably connected to the surfaces of two adjacent swing rods (18), a sealing ring (20) fixedly connected to the inner wall of the air duct (1), an adjusting shaft (22) fixedly connected to the surface of one of the driving shafts (17), and the adjusting shaft (22) being rotatably connected to the inner wall of the sealing ring (20).

2. The burner damper structure of claim 1, wherein: The surface of the sealing ring (20) is fixedly connected with a connecting block (12), the inner wall of the connecting block (12) is slidably connected with a T-shaped cylindrical positioning pin (24), and one end of the adjusting shaft (22) is fixedly connected with a hand wheel (21).

3. The burner damper structure of claim 2, wherein: The surface of the T-shaped cylindrical positioning pin (24) is sleeved with a spring (25), the bottom end of the spring (25) is fixedly connected with the upper surface of the connecting block (12), and the top end of the spring (25) is fixedly connected with the surface of the T-shaped cylindrical positioning pin (24).

4. The burner damper structure of claim 2, wherein: The surface of the adjusting shaft (22) is provided with a plurality of insertion grooves (23), and the T-shaped cylindrical positioning pin (24) is matched with the inner wall of the insertion grooves (23).

5. The burner damper structure of claim 1, wherein: The inner wall of the air duct (1) is fixedly connected with a plurality of air outlet pipes (10), and the plurality of air outlet pipes (10) are mounted below the H-shaped disc (9).

6. The burner damper structure of claim 1, wherein: The inner wall of the combustion cylinder (2) is fixedly connected with an upper sealing plate (6) and a lower sealing plate (7), the inner wall of the lower sealing plate (7) is fixedly connected with a plurality of spiral pipes (13), the inner wall of each of the spiral pipes (13) is fixedly connected with a plurality of U-shaped pipes (14), and the top end of each of the U-shaped pipes (14) penetrates through the upper surface of the upper sealing plate (6).

7. The burner damper structure of claim 6, wherein: The inner wall of the combustion cylinder (2) is fixedly connected with a plurality of first burners (8), and the upper surface of the lower sealing plate (7) is fixedly connected with a second burner (11).

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