Boiler chimney structure

Abstract

The utility model belongs to the technical field of energy conservation and environmental protection, and particularly relates to a boiler chimney structure. Comprising a lower adsorption chamber and an upper chimney body, the upper chimney body communicates with the lower adsorption chamber, a plurality of air inlet pipes are arranged on the side wall of the lower adsorption chamber, and an air outlet is formed in the top of the upper chimney body; the upper chimney body is composed of a plurality of chimney units, the adjacent chimney units are connected through connecting assemblies, an annular filtering adsorption device is arranged in the lower adsorption chamber, the diameter of the annular filtering adsorption device is larger than that of the upper chimney body, and the annular filtering adsorption device comprises a first filtering layer, a second filtering layer and a third adsorption layer. The first filter layer and the second filter layer are filter screens, and the third adsorption layer is an activated carbon adsorption layer; and before the flue gas is discharged, the flue gas is purified again, so that the pollution to the air is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of energy conservation and environmental protection, and particularly relates to a boiler chimney structure. Background Art

[0002] The primary process of waste incineration is to use a grab bucket to put a certain amount of waste materials into the boiler. Under the staggered movement of the grate, the waste materials are pushed downward, and at the same time, combustion air enters from below the grate and mixes with the waste, so that the waste is oxidized and reduced in volume at high temperature, becoming residue and being discharged.

[0003] A large amount of waste gas is generated after waste incineration and needs to be purified and then discharged through the chimney. In the patent application with the publication number CN207661785 U, a liftable chimney for a waste incinerator is disclosed, which relates to the technical field of waste incinerators. It includes a furnace body, a first backing plate is fixed on the furnace body, a first chimney is fixed on the first backing plate, and the position of the first chimney corresponds to the position of the smoke exhaust pipe; a first limiting ring is arranged on one side of one end of the first chimney, and a number of second chimneys are sequentially sleeved on the first chimney; a clamp is fixed on the periphery of the outermost second chimney; the clamp is fixed on one surface of a support plate; a lifting device is arranged on the other surface of the support plate. By setting the lifting device, the support plate, the clamp, the first chimney and the second chimney in a cooperative structure, the lifting of the chimney is realized. By adjusting the vertical height and the use space of the chimney through the lifting device, the flue gas stays in the smoke exhaust pipe for a period of time under the required environment before being discharged, improving the requirements for flue gas discharge, realizing pollution-free discharge, and reducing the pollution of waste incineration flue gas to the environment.

[0004] In the prior art, the chimney only serves the purpose of discharging flue gas and does not perform secondary treatment on the flue gas. To solve the above problems, this application proposes a boiler chimney structure. Content of the Utility Model

[0005] The purpose of the utility model is to propose a boiler chimney structure, which purifies the flue gas again before discharging it, so as to reduce the pollution to the air.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A boiler chimney structure includes a lower adsorption chamber and an upper chimney body. The upper chimney body is communicated with the lower adsorption chamber, and a number of air inlet pipes are arranged on the side wall of the lower adsorption chamber, and an air outlet is arranged at the top of the upper chimney body;

[0008] The upper chimney body is composed of a number of chimney units, and adjacent chimney units are connected by a connection component. An annular filtering and adsorbing device is arranged in the lower adsorption chamber, and the diameter of the annular filtering and adsorbing device is larger than the diameter of the upper chimney body.

[0009] The annular filtration and adsorption device comprises a first filtration layer, a second filtration layer and a third adsorption layer. The first filtration layer and the second filtration layer are filter meshes, and the third adsorption layer is an activated carbon adsorption layer.

[0010] Furthermore, a maintenance protection platform is arranged outside the upper chimney body, and a staircase is arranged between the maintenance protection platforms.

[0011] Furthermore, the upper chimney body comprises a lower chimney unit, a middle chimney unit and an upper chimney unit. The lower chimney unit, the middle chimney unit and the upper chimney unit all comprise an inner wall and an outer wall, and a heat insulation material is arranged between the inner wall and the outer wall.

[0012] Furthermore, heat absorption fins are arranged on the inner wall of the lower chimney unit, and the heat absorption fins are vertically and evenly arranged on the inner wall of the lower chimney unit.

[0013] Furthermore, a waste heat utilization water pipe is also arranged between the inner wall and the outer wall of the lower chimney unit. The waste heat utilization water pipe is annularly coiled between the inner wall and the outer wall, and both the water inlet end and the water outlet end of the waste heat utilization water pipe extend out of the outer wall.

[0014] Furthermore, a monitor is arranged inside the top of the upper chimney body, and the monitor is connected with an external display device.

[0015] Furthermore, a rain shield is arranged at the top of the upper chimney body, and the diameter of the rain shield is larger than that of the upper chimney body.

[0016] Furthermore, a pull-out drawer is arranged on the lower adsorption chamber, and soda lime is arranged inside the pull-out drawer.

[0017] Furthermore, sealing strips are arranged at the connection between the upper chimney body and the lower adsorption chamber and at the connections between the lower chimney unit, the middle chimney unit and the upper chimney unit.

[0018] Compared with the prior art, the utility model has at least one of the following beneficial effects:

[0019] The utility model is provided with a lower adsorption chamber and an upper chimney body. Before the flue gas enters the upper chimney body, the flue gas is processed again to reduce the pollution to the air during emission.

[0020] A heat insulation material is provided, and heat absorption fins and waste heat utilization water pipes are arranged in the lower chimney unit, so that the waste heat therein can be reused.

[0021] A rain shield is arranged at the top of the upper chimney body, and the diameter of the rain shield is larger than that of the upper chimney body, so as to prevent rainwater from entering the upper chimney body.

[0022] A pull - out drawer is provided, and soda lime is arranged inside the pull - out drawer. During the process of discharging flue gas, if there are traveling droplets, they will fall into the soda lime. After a period of time, the internal soda lime is replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the present utility model;

[0024] Figure 2 It is a schematic structural diagram of the lower adsorption chamber of the present utility model;

[0025] Figure 3 It is a schematic structural diagram of the lower chimney unit of the present utility model;

[0026] Figure 4 It is a schematic internal structure diagram of the lower chimney unit of the present utility model.

[0027] In the figure, 1 - lower adsorption chamber; 2 - upper chimney body; 3 - intake pipe; 4 - annular filter adsorption device; 5 - first filter layer; 6 - second filter layer; 7 - third adsorption layer; 8 - maintenance protection platform; 9 - staircase; 10 - lower chimney unit; 11 - middle chimney unit; 12 - upper chimney unit; 13 - heat absorption fin; 14 - waste heat utilization water pipe; 15 - monitor; 16 - rain shield; 17 - pull - out drawer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] As Figures 1-4 shown, in order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Embodiment

[0029] A boiler chimney structure includes a lower adsorption chamber 1 and an upper chimney body 2. The upper chimney body 2 is connected and arranged with the lower adsorption chamber 1, and several intake pipes 3 are arranged on the side wall of the lower adsorption chamber 1, and an air outlet is arranged at the top of the upper chimney body 2;

[0030] The upper chimney body 2 is composed of several chimney units, and adjacent chimney units are connected by connection components. An annular filter adsorption device 4 is arranged inside the lower adsorption chamber 1, and the diameter of the annular filter adsorption device 4 is larger than the diameter of the upper chimney body 2.

[0031] The annular filter adsorption device 4 includes a first filter layer 5, a second filter layer 6 and a third adsorption layer 7. The first filter layer 5 and the second filter layer 6 are filter meshes, and the third adsorption layer 7 is an activated carbon adsorption layer; Before the flue gas enters the upper chimney body, the flue gas is processed again to reduce the pollution to the air during emission.

[0032] More specifically, a maintenance protection platform 8 is arranged outside the upper chimney body 2, and a staircase 9 is arranged between the maintenance protection platforms 8, which is convenient for personnel to carry out maintenance and inspection.

[0033] More specifically, the upper chimney body 2 includes a lower chimney unit 10, a middle chimney unit 11 and an upper chimney unit 12. The lower chimney unit 10, the middle chimney unit 11 and the upper chimney unit 12 all include an inner wall and an outer wall. Heat insulation materials are arranged between the inner wall and the outer wall. Heat absorption fins 13 are arranged on the inner wall of the lower chimney unit 10. The heat absorption fins 13 are vertically and evenly arranged on the inner wall of the lower chimney unit 10. A waste heat utilization water pipe 14 is also arranged between the inner wall and the outer wall of the lower chimney unit 10. The waste heat utilization water pipe 14 is annularly arranged between the inner wall and the outer wall, and both the water inlet end and the water outlet end of the waste heat utilization water pipe 14 extend out of the outer wall, reducing heat loss and increasing the utilization of waste heat.

[0034] More specifically, a monitor 15 is arranged inside the top of the upper chimney body 2. The monitor 15 is connected to an external display device to monitor the indexes of the flue gas at any time.

[0035] More specifically, a rain shield 16 is arranged at the top of the upper chimney body 2. The diameter of the rain shield 16 is larger than the diameter of the upper chimney body 2 to prevent rainwater from entering the upper chimney body.

[0036] More specifically, a pull-out drawer 17 is arranged on the lower adsorption chamber 1. Soda lime is arranged inside the pull-out drawer 17. During the process of discharging flue gas, if there are traveling droplets, they will fall into the soda lime. After a period of time, the soda lime inside is replaced.

[0037] More specifically, sealing strips are arranged at the connection between the upper chimney body 2 and the lower adsorption chamber 1, and at the connections between the lower chimney unit 10, the middle chimney unit 11 and the upper chimney unit 12 to increase its sealing performance.

[0038] Although the present invention has been described herein with reference to multiple illustrative embodiments of the present invention, it should be understood that those skilled in the art can design many other modifications and embodiments, which will fall within the scope of the principles and spirit disclosed in this application. More specifically, within the scope of this application's disclosure, the accompanying drawings and the claims, various variations and improvements can be made to the components and / or the layout of the subject combination layout. In addition to the variations and improvements made to the components and / or the layout, other uses will also be obvious to those skilled in the art.

Claims

1. A boiler chimney structure, characterized in that: It includes a lower adsorption chamber (1) and an upper chimney body (2). The upper chimney body (2) is connected to the lower adsorption chamber (1), and a plurality of intake pipes (3) are arranged on the side wall of the lower adsorption chamber (1). An air outlet is arranged at the top of the upper chimney body (2). The upper chimney body (2) is composed of a plurality of chimney units, and adjacent chimney units are connected by connecting components. An annular filtering and adsorbing device (4) is arranged in the lower adsorption chamber (1), and the diameter of the annular filtering and adsorbing device (4) is larger than the diameter of the upper chimney body (2). The annular filtering and adsorbing device (4) includes a first filtering layer (5), a second filtering layer (6) and a third adsorption layer (7). The first filtering layer (5) and the second filtering layer (6) are filter meshes, and the third adsorption layer (7) is an activated carbon adsorption layer.

2. The structure of a boiler chimney according to claim 1, characterized in that: A maintenance protection platform (8) is arranged outside the upper chimney body (2), and a staircase (9) is arranged between the maintenance protection platforms (8).

3. A boiler chimney structure according to claim 1, characterized in that: The upper chimney body (2) includes a lower chimney unit (10), a middle chimney unit (11) and an upper chimney unit (12). The lower chimney unit (10), the middle chimney unit (11) and the upper chimney unit (12) all include an inner wall and an outer wall, and heat-insulating materials are arranged between the inner wall and the outer wall.

4. A boiler chimney structure according to claim 3, characterized in that: Heat-absorbing fins (13) are arranged on the inner wall of the lower chimney unit (10), and the heat-absorbing fins (13) are vertically and evenly arranged on the inner wall of the lower chimney unit (10).

5. A boiler chimney structure according to claim 3, characterized in that: A waste heat utilization water pipe (14) is also arranged between the inner wall and the outer wall of the lower chimney unit (10). The waste heat utilization water pipe (14) is annularly arranged between the inner wall and the outer wall, and both the water inlet end and the water outlet end of the waste heat utilization water pipe (14) extend out of the outer wall.

6. A boiler chimney structure according to claim 1, characterized in that: A monitor (15) is arranged inside the top of the upper chimney body (2), and the monitor (15) is connected to an external display device.

7. A boiler chimney structure according to claim 1, characterized in that: A rain shield (16) is arranged at the top of the upper chimney body (2), and the diameter of the rain shield (16) is larger than the diameter of the upper chimney body (2).

8. A boiler chimney structure according to claim 1, characterized in that: A pull-out drawer (17) is arranged on the lower adsorption chamber (1), and soda lime is arranged in the pull-out drawer (17).

9. A boiler chimney structure according to claim 1 or 2, characterized in that: Sealing strips are arranged at the connection between the upper chimney body (2) and the lower adsorption chamber (1), and at the connections between the lower chimney unit (10), the middle chimney unit (11) and the upper chimney unit (12).

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