Water cooling device for incinerator furnace

Abstract

The utility model discloses a kind of incinerator hearth water cooling devices, including plane cold row, plane cold row includes cold row pipe group, first water passing box and second water passing box, cold row pipe group upper portion is fixed with first water passing box welding, cold row pipe group lower portion is fixed with second water passing box welding, first water passing box and second water passing box one side is open, first water passing box opening is covered with first cover plate, first cover plate outside is equipped with the water inlet and water outlet interface that communicate in first water passing box interior, water inlet, cold row pipe group and water outlet interface form cooling water path, second water passing box side surface is covered with second cover plate.The utility model round pipe and fin integrally formed, without welding, the connecting section of round pipe and round pipe is located in first water passing box and second water passing box, and the opening of first water passing box and second water passing box is located in hearth exterior, to facilitate maintenance when leakage occurs in pipeline connection.

Description

Technical Field

[0001] This utility model relates to incinerators, and more specifically, to a water-cooling device for the furnace chamber of an incinerator. Background Technology

[0002] With rapid economic development, a large amount of domestic waste is generated every moment. Currently, some of this domestic waste is transported to thermal power plants and incinerated in waste incinerators. Incinerating domestic waste in incinerators has the advantages of reducing volume, recycling resources, and rendering it harmless. The steam generated can be used for power generation and steam supply, which has social benefits such as saving energy and reducing environmental pollution, as well as good economic benefits.

[0003] Because there is a wide variety of types of municipal solid waste, and different types of waste have different calorific values, coking can easily occur in the furnace when they are burned in an incinerator. This requires frequent shutdowns to clean the inner walls of the furnace, which affects the efficiency of municipal solid waste treatment. Currently, the solution is to install water-cooled walls on the side walls of the furnace (i.e., install water-cooling devices inside the side walls of the furnace). By circulating cooling water through the water-cooling devices, the temperature of the inner walls of the furnace is reduced, thereby reducing the probability of coking on the inner walls of the furnace.

[0004] The current water-cooling device consists of multiple circular steel pipes arranged side by side. Adjacent steel pipes are fixed together by welding fins, which are used for heat conduction. Arc-shaped bends are welded between the steel pipes to form an S-shaped bend in the pipeline. However, due to the high temperature inside the furnace, cracks or breaks may occur at the welded joints of the steel pipes, leading to water leakage. Since the water-cooling device is embedded in the furnace wall, it is extremely difficult to repair after leakage occurs. Therefore, there is an urgent need to improve this. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a water cooling device for the furnace of an incinerator. The round tube and fins are integrally formed without welding. The connection section between the round tubes is located inside the first water tank and the second water tank, while the openings of the first water tank and the second water tank are located outside the furnace, so that it is convenient to maintain when leakage occurs at the pipe connection.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a water-cooled furnace lining device for an incinerator, comprising a planar cooling radiator, the planar cooling radiator comprising a cooling radiator pipe assembly, a first water tank and a second water tank, the upper part of the cooling radiator pipe assembly being welded and fixed to the first water tank, the lower part of the cooling radiator pipe assembly being welded and fixed to the second water tank, the first water tank and the second water tank having an opening on one side, the opening of the first water tank being covered by a first cover plate, the outer side of the first cover plate being provided with an inlet and an outlet water interface communicating with the interior of the first water tank, the inlet water interface, the cooling radiator pipe assembly and the outlet water interface forming a cooling water path, and the side of the second water tank being covered by a second cover plate.

[0007] Furthermore, the first cover plate is connected to the first water tank by bolts, and the second cover plate is connected to the second water tank by bolts.

[0008] Furthermore, the radiator tube assembly includes several radiator units arranged side by side, and each radiator unit includes multiple circular tubes arranged side by side. Adjacent circular tubes are connected by fins. The upper end of each circular tube is inserted into a first water tank and welded and fixed, and the lower end is inserted into a second water tank and welded and fixed.

[0009] Furthermore, the first water tank is provided with multiple first water passage chambers, and two adjacent first water passage chambers are separated by a first partition. The water inlet and water outlet are respectively connected to the two farthest first water passage chambers. The second water tank is provided with multiple second water passage chambers, and two adjacent second water passage chambers are separated by a second partition. The upper end of the round pipe is inserted into the corresponding first water passage chamber and the lower end is inserted into the corresponding second water passage chamber. The multiple first water passage chambers, the multiple round pipes and the multiple second water passage chambers form an S-shaped cooling water path.

[0010] Furthermore, the circular tube and the fins are integrally formed.

[0011] Furthermore, the radiator unit has a connecting piece on one side and a connecting plate on the other side, and the connecting piece of one radiator unit is welded and fixed to the connecting plate of another radiator unit.

[0012] Furthermore, the connecting plate includes an arc-shaped cover, with a first connecting section and a second connecting section respectively on both sides of the arc-shaped cover. The arc-shaped cover covers the outside of the circular tube away from the connecting piece. The first connecting section is welded and fixed to the fins connecting the circular tube, and the second connecting section is connected to the connecting piece of another radiator unit.

[0013] Furthermore, the surface of the second connecting section is provided with multiple welding holes.

[0014] Furthermore, there are four cooling pipe groups, which are connected end to end to form a square-section annular water-cooled body. The water-cooled body is installed inside the furnace cavity, and the first cover plate and the second cover plate are located outside the furnace.

[0015] Furthermore, the connecting piece located on the side of the radiator tube assembly is L-shaped and is welded and fixed to the connecting plate on the side of the adjacent radiator tube assembly.

[0016] In summary, this utility model has the following beneficial effects:

[0017] The integral molding of the round tube and fins not only facilitates the production and manufacturing of the radiator unit, but also avoids breakage at the connection due to the high temperature of the furnace, resulting in good structural reliability. When the radiator tube assembly is installed in the cavity of the furnace, the first and second cover plates are located outside the furnace, that is, the openings of the first and second water tanks are located outside the furnace. In actual use, the leakage point of the cooling water circuit is most likely to be located at the weld between the round tube and the first water tank or at the weld between the round tube and the second water tank. When there is a leakage at the above location, the corresponding cover plate (first cover plate or second cover plate) can be opened outside the furnace to expose the corresponding weld point, so that the leakage point can be repaired outside the furnace, which is convenient for maintenance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0019] Figure 2 This is a cross-sectional view of this embodiment;

[0020] Figure 3 for Figure 2 Enlarged view at point A;

[0021] Figure 4 for Figure 2 Enlarged view at point B;

[0022] Figure 5 This is a schematic diagram of a planar radiator.

[0023] Figure 6 This is a schematic diagram showing the flow direction of chilled water in a planar radiator;

[0024] Figure 7 An exploded view of a planar radiator;

[0025] Figure 8 This is a schematic diagram of the structure after the furnace is installed in this embodiment.

[0026] Reference numerals: 1. Planar radiator; 2. Radiator tube assembly; 3. Radiator unit; 31. Round tube; 32. Fin; 33. Connecting piece; 4. Connecting plate; 41. Arc-shaped cover; 42. First connecting section; 43. Second connecting section; 44. Welding hole; 5. First water tank; 51. First partition plate; 52. First water passage cavity; 6. Second water tank; 61. Second partition plate; 62. Second water passage cavity; 7. First cover plate; 71. Water inlet; 72. Water outlet; 8. Second cover plate; 9. Furnace chamber; 91. Chamber. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1 to 3 As shown, this embodiment discloses a water-cooled furnace device for an incinerator, including a planar cooling radiator 1. The planar cooling radiator 1 includes a cooling radiator tube assembly 2, a first water tank 5, and a second water tank 6. The upper part of the cooling radiator tube assembly 2 is welded and fixed to the first water tank 5, and the lower part of the cooling radiator tube assembly 2 is welded and fixed to the second water tank 6. The first water tank 5 and the second water tank 6 have openings on one side. A first cover plate 7 is closed at the opening of the first water tank 5, and a second cover plate 8 is closed at the side of the second water tank 6. Specifically, the first cover plate 7 is sealed to the first water tank 5 by bolts, and the second cover plate 8 is sealed to the second water tank 6 by bolts.

[0029] The outer side of the first cover plate 7 is provided with an inlet port 71 and an outlet port 72 communicating with the interior of the first water tank 5. The inlet port 71, the radiator pipe assembly 2, and the outlet port 72 form a cooling water circuit. Specifically, the radiator pipe assembly 2 includes several radiator units 3 arranged side by side. Each radiator unit 3 includes multiple circular pipes 31 arranged side by side. Adjacent circular pipes 31 are connected by fins 32. The circular pipes 31 and fins 32 are integrally formed. The upper end of the circular pipe 31 is inserted into the first water tank 5 and welded and fixed, and the lower end is inserted into the second water tank 6 and welded and fixed. The first water tank... The first water passage chamber 5 is provided with multiple first water passage chambers 52. Adjacent first water passage chambers 52 are separated by a first partition 51. The water inlet 71 and the water outlet 72 are respectively connected to the two farthest first water passage chambers 52. The second water passage chamber 6 is provided with multiple second water passage chambers 62. Adjacent second water passage chambers 62 are separated by a second partition 61. The upper end of the circular tube 31 is inserted into the corresponding first water passage chamber 52 and the lower end is inserted into the corresponding second water passage chamber 62. The multiple first water passage chambers 52, the multiple circular tubes 31 and the multiple second water passage chambers 62 form a strip. Figure 6 The S-shaped cooling water circuit shown has a first water passage 52 sealed by a first cover plate 7 and a second water passage 62 sealed by a second cover plate 8.

[0030] The circular tube 31 and fins 32 are integrally formed, which not only facilitates the production and manufacturing of the cold radiator unit 3, but also avoids breakage at the connection due to the high temperature of the furnace 9, resulting in good structural reliability. When the cold radiator tube assembly 2 is installed in the cavity 91 of the furnace 9, the first cover plate 7 and the second cover plate 8 are located outside the furnace 9, that is, the openings of the first water tank 5 and the second water tank 6 are located outside the furnace 9. Figure 6 and Figure 7 As shown, in actual use, the leakage point of the cooling water circuit is most likely to be located at the weld between the round pipe 31 and the first water tank 5 or at the weld between the round pipe 31 and the second water tank 6. When there is a leakage at the above location, the corresponding weld point can be exposed by simply opening the corresponding cover plate (first cover plate 7 or second cover plate 8) outside the furnace 9, so that the leakage point can be repaired outside the furnace 9, which is convenient for maintenance.

[0031] In this embodiment, there are two radiator units 3. Each radiator unit 3 has a connecting piece 33 on one side and a connecting plate 4 on the other side. The connecting piece 33 of one radiator unit 3 is welded and fixed to the connecting plate 4 of the other radiator unit 3. Specifically, the connecting plate 4 includes an arc-shaped cover 41. The arc-shaped cover 41 has a first connecting section 42 and a second connecting section 43 on both sides. The arc-shaped cover 41 covers the outside of the circular tube 31 away from the connecting piece 33. The first connecting section 42 is welded and fixed to the fin 32 connecting the circular tube 31. The second connecting section 43 is connected to the connecting piece 33 of the other radiator unit 3. The surface of the second connecting section 43 is provided with multiple welding holes 44. By setting the welding holes 44, the connection reliability of two adjacent radiator units 3 can be effectively improved.

[0032] In this embodiment, there are four cooling pipe groups 2. The four cooling pipe groups 2 are connected end to end to form a square-section annular water-cooled body. The water-cooled body is installed in the cavity 91 of the furnace 9. The connecting piece 33 located on the side of the cooling pipe group 2 is L-shaped and is welded and fixed to the connecting plate 4 on the side of the adjacent cooling pipe group 2. The four cooling pipe groups 2 can cool the four sides of the furnace 9, and each of the four cooling pipe groups 2 is supplied with cooling water independently, so that the four sides of the furnace 9 can be individually temperature controlled, which is beneficial to improving the anti-coking effect of the furnace 9.

[0033] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A water-cooling device for an incinerator furnace, characterized in that, The device includes a planar radiator (1), which includes a radiator tube assembly (2), a first water tank (5), and a second water tank (6). The upper part of the radiator tube assembly (2) is welded and fixed to the first water tank (5), and the lower part of the radiator tube assembly (2) is welded and fixed to the second water tank (6). The first water tank (5) and the second water tank (6) have an opening on one side. The opening of the first water tank (5) is covered by a first cover plate (7). The outer side of the first cover plate (7) is provided with an inlet port (71) and an outlet port (72) that communicate with the inside of the first water tank (5). The inlet port (71), the radiator tube assembly (2), and the outlet port (72) form a cooling water circuit. The side of the second water tank (6) is covered by a second cover plate (8).

2. The incinerator furnace water-cooling device according to claim 1, characterized in that, The first cover plate (7) is connected to the first water tank (5) by bolt sealing, and the second cover plate (8) is connected to the second water tank (6) by bolt sealing.

3. The incinerator furnace water-cooling device according to claim 1, characterized in that, The radiator assembly (2) includes several radiator units (3) arranged side by side. Each radiator unit (3) includes multiple round tubes (31) arranged side by side. Two adjacent round tubes (31) are connected by fins (32). The upper end of the round tube (31) is inserted into the first water tank (5) and welded and fixed, and the lower end is inserted into the second water tank (6) and welded and fixed.

4. The incinerator furnace water-cooling device according to claim 3, characterized in that, The first water tank (5) is provided with multiple first water passage chambers (52). Two adjacent first water passage chambers (52) are separated by a first partition (51). The water inlet (71) and water outlet (72) are respectively connected to the two farthest first water passage chambers (52). The second water tank (6) is provided with multiple second water passage chambers (62). Two adjacent second water passage chambers (62) are separated by a second partition (61). The upper end of the round tube (31) is inserted into the corresponding first water passage chamber (52) and the lower end is inserted into the corresponding second water passage chamber (62). The multiple first water passage chambers (52), the multiple round tubes (31) and the multiple second water passage chambers (62) form an S-shaped cooling water path.

5. The incinerator furnace water-cooling device according to claim 3, characterized in that, The circular tube (31) and the fin (32) are integrally formed.

6. The incinerator furnace water-cooling device according to claim 3, characterized in that, The radiator unit (3) has a connecting piece (33) on one side and a connecting plate (4) on the other side. The connecting piece (33) of one radiator unit (3) is welded and fixed to the connecting plate (4) of another radiator unit (3).

7. A water-cooled incinerator furnace according to claim 6, characterized in that, The connecting plate (4) includes an arc-shaped cover (41), and a first connecting section (42) and a second connecting section (43) are respectively provided on both sides of the arc-shaped cover (41). The arc-shaped cover (41) covers the outside of the round tube (31) away from the connecting piece (33). The first connecting section (42) is welded and fixed to the fin (32) connecting the round tube (31). The second connecting section (43) is connected to the connecting piece (33) of another cold air radiator unit (3).

8. A water-cooled incinerator furnace according to claim 7, characterized in that, The second connecting section (43) has multiple welding holes (44) on its surface.

9. A water-cooled incinerator furnace according to claim 7, characterized in that, The number of the cooling pipe groups (2) is four. The four cooling pipe groups (2) are connected end to end to form a ring-shaped water-cooled body with a square cross section. The water-cooled body is installed in the cavity (91) of the furnace (9). The first cover plate (7) and the second cover plate (8) are located outside the furnace (9).

10. A water-cooled incinerator furnace according to claim 9, characterized in that, The connecting piece (33) located on the side of the cold air radiator (2) is L-shaped and is welded and fixed to the connecting plate (4) on the side of the adjacent cold air radiator (2).

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