Heat exchange assembly and direct-fired incinerator

Abstract

The utility model relates to the technical field of waste gas treatment, in particular to a heat exchange assembly and a direct-fired incinerator, which comprise an inner barrel, a first partition plate fixed in the inner barrel, a plurality of heat exchange tubes fixed on the first partition plate, the other ends of the heat exchange tubes are connected with a second partition plate, the second partition plate is fixedly connected with an isolation barrel, and a direct discharge tube is arranged between the first partition plate and the second partition plate. The left end of the straight discharging pipe is fixedly connected with the first partition plate, the right end of the straight discharging pipe is fixedly connected with the second partition plate, the straight discharging pipe is provided with a spiral blade guide plate, the spiral blade guide plate is spirally wound on the outer side wall of the straight discharging pipe, and the spiral blade guide plate comprises an inner connecting face and an outer connecting face. The spiral blade guide plate is arranged on the side wall of the straight discharge pipe in the heat exchange area, so that heat exchange gas spirally moves along the spiral blade guide plate, and the heat exchange gas is prevented from being indirectly blocked in the moving process, the heat exchange process is not stable, the heat exchange effect is unstable, and the heat exchange efficiency is improved. Therefore, the heat exchange efficiency of the incinerator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a heat exchange component and a direct-fired incinerator. Background Art

[0002] Direct-fired waste gas incineration (TO) utilizes the heat generated by the combustion of an auxiliary fuel (e.g., natural gas) to heat the organic waste gas mixture to above its auto-ignition temperature (e.g., 800°C). This allows the pollutants to undergo an oxidation reaction with oxygen, decomposing them into CO2 and H2O while releasing heat. Due to its simplicity and high efficiency, it is widely used in industrial enterprises to treat VOC-containing waste gas, particularly those requiring large heat resources.

[0003] The utility model patent with patent number 20221173219.8 discloses a direct-fired incinerator, in which partition one and partition two are arranged in the heat exchange zone, which can allow the heat exchange gas to stay in the heat exchange zone for a longer time. However, the cross-arranged partition one and partition two will cause the heat exchange gas to be indirectly blocked during the movement process, resulting in an unstable heat exchange process and fluctuating heat exchange effects, thereby reducing the heat exchange efficiency of the incinerator. Utility Model Content

[0004] The utility model provides a heat exchange component and a direct-fired incinerator.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The heat exchange component and the direct-fired incinerator comprise an inner cylinder, wherein a partition 1 is fixed in the inner cylinder, and a plurality of heat exchange tubes are fixed on the partition 1, and the other end of the heat exchange tube is connected to the partition 2, and the partition 2 is fixedly connected to the isolation cylinder. The partition 1, the partition 2 and the isolation cylinder divide the interior of the inner cylinder into an exhaust area, a heat exchange area, an air intake area, a transition area and a combustion area. The exhaust area and the combustion area are located at the two ends of the inner cylinder, and a straight pipe is provided between the partition 1 and the partition 2, the left end of the straight pipe is fixedly connected to the partition 1, and the right end of the straight pipe is fixedly connected to the partition 2, and a spiral blade guide plate is provided on the straight pipe, and the spiral blade guide plate is spirally wound on the outer wall of the straight pipe, and the spiral blade guide plate comprises an inner surface and an outer surface, and the spiral blade guide plate is fixedly connected to the outer wall of the straight pipe through the inner surface, and the spiral blade guide plate is fixedly connected to the inner cylinder through the outer surface, and the combustion area is equipped with a fuel. The burner is provided with a rectifying assembly 1 at the connection between the air intake zone and the combustion zone, and a plurality of rectifying parts 1 are provided in the rectifying assembly 1, and both sides of the rectifying part 1 are spherical arc surfaces, and the spherical arc surfaces of all the rectifying parts 1 have at least one intersection, and the intersection is within the combustion range of the burner. The rectifying assembly 1 includes an edge part 1 and an edge part 2, and the outer walls of the edge part 1 and the edge part 2 are fixed on a fixed plate 1, and a plurality of rectifying parts 1 are provided on the inner side surface of the fixed plate 1 and between the edge part 1 and the edge part 2. The flue gas passing area is between every two adjacent rectifying parts 1, between the rectifying part 1 and the edge part 1, and between the rectifying part 1 and the edge part 2. A rectifying assembly 2 is provided in the transition zone, and a plurality of rectifying parts 2 are provided in the rectifying assembly 2. Both sides of the rectifying part 2 are spherical arc surfaces, and the spherical arc surfaces of all the rectifying parts 2 have at least one intersection, and the intersection is within the combustion range of the burner. The spherical arc surface on the rectifying assembly 2 also intersects with the partition 2. The rectifier assembly 2 includes an edge piece 3 and a straight piece. The same side end faces of the edge piece 3 and the straight piece are fixed on the fixed plate 2. A number of rectifier pieces 2 are arranged on the inner side face of the fixed plate 2 and between the edge piece 3 and the straight piece. The flue gas passage area is between each two adjacent rectifier pieces 2, between the rectifier piece 2 and the edge piece 3, and between the rectifier piece 2 and the straight piece. The inner side face of the edge piece 3 is a spherical arc surface, and one intersection point of the spherical arc surface of the rectifier piece 2 is on the spherical arc surface of the edge piece 3. The outer side face of the edge piece 3 is fixed on the inner wall of the isolation cylinder. The outer side face of the straight piece is a spherical arc surface, and one intersection point of the spherical arc surface of the rectifier piece 2 is on the spherical arc surface of the edge piece 3. A center hole is arranged at the center of the end face of the straight piece.

[0007] Furthermore, the inner side surface of the edge piece 1 is a spherical arc surface, an intersection of the spherical arc surface of the rectifying piece 1 is on the spherical arc surface of the edge piece 2, the outer end surface of the edge piece 1 is fixed on the outer wall of the isolation cylinder, and the outer end surface of the edge piece 2 is fixed on the inner wall of the inner cylinder.

[0008] Furthermore, the heat exchange tube in the heat exchange zone is used to connect the transition zone and the exhaust zone. One end of the heat exchange tube is fixed on partition one, and the end face extends into the exhaust zone. The other end of the heat exchange tube is fixed on partition two, and the end face extends into the transition zone.

[0009] Furthermore, the diameter of the partition plate 1 is equal to the inner diameter of the inner cylinder, the diameter of the partition plate 2 is smaller than the inner diameter of the inner cylinder, and an air inlet is provided on the inner cylinder, and the air inlet is connected to the heat exchange area.

[0010] Furthermore, a straight pipe is provided in the center of partition one and partition two, one end of the straight pipe is fixed on partition one, and the end face extends into the exhaust area, and the other end of the straight pipe is fixed on partition two, and the end face extends into the transition area.

[0011] Furthermore, an outer cylinder is provided outside the inner cylinder, an insulation layer is provided between the inner cylinder and the outer cylinder, and the lower portion of the outer cylinder is fixed to the base. An explosion-proof opening and an inspection opening are also provided on the outer wall of the inner cylinder.

[0012] Furthermore, a regulating valve is installed at the end of the straight pipe, and the exhaust volume of the straight pipe can be controlled by adjusting the opening of the regulating valve. The inner cylinder is provided with an air inlet, which is connected to the heat exchange area. The exhaust area is provided with an exhaust port.

[0013] A direct-fired incinerator includes a heat exchange component.

[0014] Beneficial effect: The utility model arranges a spiral blade guide plate on the side wall of the straight pipe in the heat exchange area, so that the heat exchange gas moves in a spiral manner along the spiral blade guide plate. While ensuring that the heat exchange gas stays in the heat exchange area for a long time, it also ensures that the heat exchange gas can move evenly, avoiding the heat exchange gas being indirectly blocked during the movement process, resulting in an unstable heat exchange process and fluctuating heat exchange effects, thereby improving the heat exchange efficiency of the incinerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the main structure of the utility model Figure 2 ;

[0017] Figure 3 It is a left side sectional view of the present utility model;

[0018] Figure 4 This is a three-dimensional structural view of the spiral blade guide plate 7 of the present invention;

[0019] Figure 5Schematic diagram of the airflow direction of the rectifier assembly 1 in the present invention;

[0020] Figure 6 This is a partial cross-sectional structural diagram of a rectifier component 1 in the present invention;

[0021] Figure 7 Schematic diagram of the airflow direction of the rectifier assembly 2 in the present invention;

[0022] Figure 8 This is a right side structural diagram of the rectifier component 2 in the present invention;

[0023] Figure 9 This is a partial cross-sectional structural diagram of the rectifier component 2 in the present invention;

[0024] 1 Inner cylinder, 2 Insulation layer, 3 Outer cylinder, 4 Air inlet, 5 Partition 1, 6 Heat exchange tube, 7 Spiral blade guide plate, 8 Isolation cylinder, 9 Partition 2, 10 Burner, 11 Straight pipe, 12 Regulating valve, 13 Exhaust outlet, 14 Base, 15 Rectifier assembly 1, 16 Rectifier assembly 2, 17 Explosion-proof port, 18 Inspection port, 19 Exhaust zone, 20 Heat exchange zone, 21 Air inlet zone, 22 Transition zone, 23 Combustion zone;

[0025] 701 internal surface, 702 external surface;

[0026] 1501 edge piece 1, 1502 fairing piece 1, 1503 edge piece 2, 1504 fixing plate 1;

[0027] 1601 edge part three, 1602 rectifier part two, 1603 straight row part, 1604 fixed plate two. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0030] Reference Figure 1-9A heat exchange component includes an inner cylinder 1, a partition 5 is fixed in the inner cylinder 1, a plurality of heat exchange tubes 6 are fixed on the partition 5, the other end of the heat exchange tube 6 is connected to the partition 2 9, the partition 2 9 is fixedly connected to the isolation cylinder 8, the partition 1 5, the partition 2 9, and the isolation cylinder 8 divide the interior of the inner cylinder 1 into an exhaust area 19, a heat exchange area 20, an air intake area 21, a transition area 22, and a combustion area 23. The exhaust area 19 and the combustion area 23 are located at both ends of the inner cylinder 1. A straight pipe 11 is provided between the partition 1 5 and the partition 2 9. The left end of the straight pipe 11 is fixedly connected to the partition 1 5, and the right end of the straight pipe 11 is fixedly connected to the partition 2 9. A spiral blade guide plate 7 is provided on the straight pipe 11. The spiral blade guide plate 7 is spirally wound on the outer wall of the straight pipe 11. The spiral blade guide plate 7 includes an inner surface 701 and an outer surface 702. The spiral blade guide plate 7 is fixedly connected to the outer wall of the straight pipe 11 through the inner surface 701. The spiral blade guide plate 7 is fixedly connected to the inner cylinder 1 through the external surface 702. The burner 10 is installed in the combustion zone 23. The connection between the air inlet zone 21 and the combustion zone 23 is provided with a rectifying assembly 15. The rectifying assembly 15 is provided with a plurality of rectifying parts 1502. Both sides of the rectifying parts 1502 are spherical arc surfaces. The spherical arc surfaces of all the rectifying parts 1502 have at least one intersection point. The intersection point is within the combustion range of the burner 10. The rectifying assembly 15 includes Edge piece 1 1501 and edge piece 2 1503, the outer walls of edge piece 1501 and edge piece 2 1503 are fixed on fixed plate 1 1504, and a plurality of rectifying pieces 1502 are arranged on the inner side surface of fixed plate 1 1504 and between edge piece 1 1501 and edge piece 2 1503. The flue gas passage area is between every two adjacent rectifying pieces 1502, between rectifying piece 1502 and edge piece 1 1501, and between rectifying piece 1 1502 and edge piece 2 1503.

[0031] The inner side surface of the edge piece 1501 is a spherical arc surface, and an intersection of the spherical arc surface of the rectifying piece 1502 is on the spherical arc surface of the edge piece 2 1503. The outer end surface of the edge piece 1501 is fixed on the outer wall of the isolation cylinder 8, and the outer end surface of the edge piece 2 1503 is fixed on the inner wall of the inner cylinder 1.

[0032] The heat exchange tube 6 in the heat exchange zone 20 is used to connect the transition zone 22 and the exhaust zone 19. One end of the heat exchange tube 6 is fixed on the partition 1 5, and the end face extends into the exhaust zone 19. The other end of the heat exchange tube 6 is fixed on the partition 2 9, and the end face extends into the transition zone 22.

[0033] The diameter of the partition 1 5 is equal to the inner diameter of the inner cylinder 1 , and the diameter of the partition 2 9 is smaller than the inner diameter of the inner cylinder 1 . An air inlet 4 is provided on the inner cylinder 1 , and the air inlet 4 is connected to the heat exchange area 20 .

[0034] A straight pipe 11 is also provided in the center of the partition 1 5 and the partition 2 9. One end of the straight pipe 11 is fixed on the partition 1 5, and the end face extends into the exhaust area 19. The other end of the straight pipe 11 is fixed on the partition 2 9, and the end face extends into the transition area 22.

[0035] The outer cylinder 3 is provided outside the inner cylinder 1, and a heat-insulating layer 2 is provided between the inner cylinder and the outer cylinder. The lower part of the outer cylinder 3 is fixed on the base 14. The outer wall of the inner cylinder 1 is also provided with an explosion-proof opening 17 and an inspection opening 18.

[0036] The end of the straight pipe is equipped with a regulating valve 12, and the exhaust volume of the straight pipe 11 can be controlled by adjusting the opening of the regulating valve 12. The inner cylinder 1 is provided with an air inlet, which is connected to the heat exchange area 20. The exhaust area 19 is provided with an exhaust port 13.

[0037] A direct-fired incinerator includes a heat exchange component.

[0038] Working principle:

[0039] A spiral blade guide plate 7 is provided on the side wall of the straight pipe 11 in the heat exchange zone 20, so that the heat exchange gas moves in a spiral manner along the spiral blade guide plate 7. While ensuring that the heat exchange gas stays in the heat exchange zone 20 for a long time, it also ensures that the heat exchange gas can move evenly, avoiding the heat exchange gas being indirectly blocked during the movement process, resulting in an unstable heat exchange process and fluctuating heat exchange effects, thereby improving the heat exchange efficiency of the incinerator.

[0040] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heat exchange component, characterized in that: The invention comprises an inner cylinder (1), wherein a partition plate 1 (5) is fixed inside the inner cylinder (1), and a plurality of heat exchange tubes (6) are fixed on the partition plate 1 (5), and the other end of the heat exchange tube (6) is connected to the partition plate 2 (9), and the partition plate 2 (9) is fixedly connected to the isolation cylinder (8). The partition plate 1 (5), the partition plate 2 (9), and the isolation cylinder (8) divide the interior of the inner cylinder (1) into an exhaust zone (19), a heat exchange zone (20), an air intake zone (21), a transition zone (22), and a combustion zone (23). The exhaust zone (19) and the combustion zone (23) are located on both sides of the inner cylinder (1). The first and second partitions (5) and (9) are connected to each other. A straight pipe (11) is provided between the first and second partitions (5). The left end of the straight pipe (11) is fixedly connected to the first partition (5). The right end of the straight pipe (11) is fixedly connected to the second partition (9). A spiral blade guide plate (7) is provided on the straight pipe (11). The spiral blade guide plate (7) is spirally wound on the outer wall of the straight pipe (11). The spiral blade guide plate (7) includes an inner surface (701) and an outer surface (702). The spiral blade guide plate (7) is connected to the outer wall of the straight pipe (11) through the inner surface (701). The spiral blade guide plate (7) is fixedly connected to the inner cylinder (1) through the external surface (702), the combustion zone (23) is provided with a burner (10), the air intake zone (21) and the combustion zone (23) are connected at a rectifying assembly (15), the rectifying assembly (15) is provided with a plurality of rectifying parts (1502), both sides of the rectifying parts (1502) are spherical arc surfaces, and the spherical arc surfaces of all the rectifying parts (1502) have at least one intersection point, and the intersection point is within the combustion range of the burner (10), and the rectifying assembly (15) is provided with a plurality of rectifying parts (1502). ) includes an edge piece 1 (1501) and an edge piece 2 (1503), the outer side walls of the edge piece 1 (1501) and the edge piece 2 (1503) are fixed on a fixed plate 1 (1504), and a plurality of rectifying pieces 1 (1502) are arranged on the inner side surface of the fixed plate 1 (1504) and between the edge piece 1 (1501) and the edge piece 2 (1503), and the flue gas passing area is between every two adjacent rectifying pieces 1 (1502), between the rectifying piece 1 (1502) and the edge piece 1 (1501), and between the rectifying piece 1 (1502) and the edge piece 2 (1503).

2. A heat exchange assembly according to claim 1, characterized in that: The inner side surface of the edge piece 1 (1501) is a spherical arc surface, an intersection point of the spherical arc surface of the rectifying piece 1 (1502) is on the spherical arc surface of the edge piece 2 (1503), the outer end surface of the edge piece 1 (1501) is fixed on the outer wall of the isolation cylinder (8), and the outer end surface of the edge piece 2 (1503) is fixed on the inner wall of the inner cylinder (1).

3. The heat exchange assembly according to claim 1, characterized in that: The heat exchange tube (6) in the heat exchange zone (20) is used to connect the transition zone (22) and the exhaust zone (19). One end of the heat exchange tube (6) is fixed on the partition plate (5), and the end face extends into the exhaust zone (19). The other end of the heat exchange tube (6) is fixed on the partition plate (9), and the end face extends into the transition zone (22).

4. The heat exchange assembly according to claim 1, characterized in that: The diameter of the partition plate 1 (5) is equal to the inner diameter of the inner cylinder (1), and the diameter of the partition plate 2 (9) is smaller than the inner diameter of the inner cylinder (1). An air inlet (4) is provided on the inner cylinder (1), and the air inlet (4) is connected to the heat exchange area (20).

5. The heat exchange assembly according to claim 1, characterized in that: A straight pipe (11) is further provided at the center of the partition plate 1 (5) and the partition plate 2 (9). One end of the straight pipe (11) is fixed on the partition plate 1 (5), and the end face extends into the exhaust area (19). The other end of the straight pipe (11) is fixed on the partition plate 2 (9), and the end face extends into the transition area (22).

6. The heat exchange assembly according to claim 1, characterized in that: An outer cylinder (3) is provided outside the inner cylinder (1), a heat-insulating layer (2) is provided between the inner cylinder and the outer cylinder, the lower portion of the outer cylinder (3) is fixed on a base (14), and an explosion-proof opening (17) and an inspection opening (18) are also provided on the outer wall of the inner cylinder (1).

7. The heat exchange assembly according to claim 1, characterized in that: The end of the straight pipe (11) is provided with a regulating valve (12), and the exhaust volume of the straight pipe (11) can be controlled by adjusting the opening of the regulating valve (12). The inner cylinder (1) is provided with an air inlet, which is connected to the heat exchange area (20). The exhaust area (19) is provided with an exhaust port (13).

8. A direct-fired incinerator, characterized in that: A heat exchange component comprising any one of claims 1-7.

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