Pipeline structure of induced draft fan

Abstract

The induced draft fan pipeline structure comprises an induced draft fan main body, a dust removal frame, a pipeline main body and a filter element, the output end of the induced draft fan main body is connected with the pipeline main body, the dust removal frame is arranged at the top end in the pipeline main body, an insertion opening is formed in one side of the pipeline main body, and the filter element is arranged in the insertion opening. The dust removal frame is inserted into the pipeline body through the insertion opening, the dust removal frame is evenly filled with filter elements, limiting columns are evenly arranged on one side of the dust removal frame, and limiting grooves matched with the limiting columns are evenly formed in the side, close to the limiting columns, of the interior of the pipeline body. According to the utility model, the induced draft fan main body, the pipeline main body, the dust removal frame, the filter element, the limiting column, the limiting groove, the panel, the handle and the insertion port are arranged, the induced draft fan main body leads flue gas in the pyrolysis gasification furnace into the pipeline main body, impurities in the flue gas are adsorbed and filtered through the filter element in the dust removal frame, and the flue gas is filtered without additionally connecting dust removal equipment; and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pyrolysis gasification furnace accessories, in particular to an induced draft fan pipeline structure. Background Art

[0002] The pyrolysis gasifier is an advanced thermochemical reaction equipment that can convert solid fuel into renewable energy. It has important environmental and economic significance. The principle of this equipment is to break the chemical bonds in the solid fuel through pyrolysis reaction at high temperature, thereby releasing a large amount of heat energy and gas products. These products can be further converted into usable energy, such as power generation, heating and fuel production.

[0003] When the pyrolysis gasifier is working, a large amount of flue gas will be generated inside. These flue gases need to be discharged through the duct of the induced draft fan. Generally, the duct structure of the induced draft fan is relatively simple and usually does not have the function of dust removal. The gas discharged from the pyrolysis gasifier often contains a certain amount of dust. When the gas is discharged, additional dust removal equipment is required for further filtration, which increases production costs. Utility Model Content

[0004] The utility model aims to provide a duct structure of an induced draft fan to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a duct structure of an induced draft fan, comprising an induced draft fan body, a dust removal frame, a duct body and a filter element, the output end of the induced draft fan body is connected to the duct body, and a dust removal frame is arranged at the top of the duct body, an insertion port is provided on one side of the duct body, the dust removal frame is inserted into the interior of the duct body through the insertion port, and the interior of the dust removal frame is evenly filled with the filter element, limiting columns are evenly provided on one side of the dust removal frame, and limiting grooves matching the limiting columns are evenly provided on one side of the duct body close to the limiting columns, a panel is provided on the side of the dust removal frame away from the limiting columns, and the panel is connected to the outer wall of the duct body, and a handle is provided on the panel.

[0006] Preferably, through holes are provided at the bottom of the dust removal frame, and the through holes are distributed at equal intervals.

[0007] Preferably, the bottom end of the duct body is connected to the air outlet end of the induced draft fan body through a connecting flange, and mounting holes are evenly distributed on the edge of the connecting flange.

[0008] Preferably, an embedding groove is provided on the bottom surface of the connecting flange, and a sealing member is embedded inside the embedding groove, and the sealing member is made of high temperature resistant rubber material.

[0009] Preferably, slow flow plates are provided on both sides of the interior of the pipeline body, and the slow flow plates are distributed in a staggered manner.

[0010] Preferably, the slow flow plate is evenly connected to the inner wall of the pipeline body through a rotating shaft, and the top side of the slow flow plate is connected to the inner wall of the pipeline body through a buffer spring.

[0011] Preferably, reserved grooves are provided on the pipe body at both ends of the insertion port, and reserved blocks corresponding to the reserved grooves are provided at both ends of the panel close to the pipe body.

[0012] Preferably, both ends of one side of the panel are provided with a rotating seat, and the interior of the rotating seat is rotatably connected with a clamping piece via a rotating shaft, and the outer side wall of the pipe body is provided with a clamping block matching the clamping piece.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The induced draft fan duct structure is equipped with an induced draft fan body, a duct body, a dust removal frame, a filter element, a limiting column, a limiting groove, a panel, a handle and an insertion port. The dust removal frame is evenly filled with the filter element. The dust removal frame is inserted into the duct body through the insertion port on one side of the duct body. The limiting column is correspondingly connected to the limiting groove to limit the dust removal frame. Through holes are evenly opened at the bottom of the dust removal frame. The induced draft fan body draws the flue gas in the pyrolysis gasification furnace into the duct body. The impurities in the flue gas are adsorbed and filtered by the filter element in the dust removal frame and then discharged. There is no need to connect additional dust removal equipment to filter the flue gas, which improves work efficiency. When the filter element needs to be replaced, the card can be separated from the card block, and then the panel and the dust removal frame can be pulled out by the handle to replace the internal filter element, which is convenient and quick.

[0015] (2) The induced draft fan duct structure is provided with a slow flow plate, which is evenly connected to the inner wall of the duct body through a rotating shaft. The top side of the slow flow plate is connected to the inner wall of the duct body through a buffer spring, so that when the smoke is introduced, it moves upward through the gap between the slow flow plates, which is beneficial to slow down the speed of the smoke entering the duct body, thereby improving the filtering and dust removal effect. At the same time, when the gas passes through, the slow flow plate compresses the buffer spring, and the pressure is dispersed and buffered through the rebound performance of the buffer spring, so that the slow flow plate is not easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the pipeline main body of the utility model;

[0019] Figure 3 This is a schematic diagram of the dust removal frame structure of the utility model;

[0020] Figure 4 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0021] Figure 5 It is a schematic diagram of the structure of the connecting flange of the utility model when viewed from above.

[0022] In the figure: 1. induced draft fan body; 2. connecting flange; 3. dust removal frame; 4. duct body; 5. slow flow plate; 6. clamping block; 7. limiting groove; 8. insertion port; 9. clamping piece; 10. rotating seat; 11. panel; 12. through hole; 13. filter element; 14. limiting column; 15. buffer spring; 16. mounting hole; 17. embedding groove; 18. sealing element; 19. reserved groove; 20. handle. DETAILED DESCRIPTION

[0023] 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides an embodiment: an induced draft fan pipeline structure, comprising an induced draft fan body 1, a dust removal frame 3, a pipeline body 4 and a filter element 13, the output end of the induced draft fan body 1 is connected to the pipeline body 4, the input end of the induced draft fan body 1 is connected to the exhaust port of the pyrolysis gasification furnace, and the output end is fixedly connected to the connection flange 2 of the pipeline body 4;

[0025] The bottom end of the duct body 4 is connected to the air outlet end of the induced draft fan body 1 through the connecting flange 2, and mounting holes 16 are evenly distributed on the edge of the connecting flange 2;

[0026] The bottom surface of the connecting flange 2 is provided with an embedding groove 17, and a sealing member 18 is embedded inside the embedding groove 17. The sealing member 18 is made of high temperature resistant rubber material to increase the sealing performance of the connection between the induced draft fan body 1 and the pipeline body 4.

[0027] A dust removal frame 3 is provided at the top of the pipe body 4, an insertion port 8 is provided on one side of the pipe body 4, the dust removal frame 3 is inserted into the pipe body 4 through the insertion port 8, and the inside of the dust removal frame 3 is evenly filled with a filter element 13;

[0028] Limiting posts 14 are evenly arranged on one side of the dust removal frame 3, and limiting grooves 7 matching the limiting posts 14 are evenly opened on one side of the pipe body 4 near the limiting posts 14;

[0029] The dust removal frame 3 is inserted into the interior of the pipeline body 4 through the insertion port 8 on one side of the pipeline body 4, and the limiting column 14 is correspondingly connected to the limiting groove 7 to limit the dust removal frame 3;

[0030] When the induced draft fan body 1 is in operation, the flue gas in the pyrolysis gasification furnace is led out to the inside of the duct body 4. A through hole 12 is provided at the bottom of the dust removal frame 3, and the through holes 12 are evenly spaced. The flue gas enters the filter element 13 through the through hole 12 at the bottom of the dust removal frame 3, and the impurities in the flue gas are adsorbed and filtered by the filter element 13. There is no need to connect additional dust removal equipment to filter the flue gas, thereby improving work efficiency.

[0031] A panel 11 is provided on the side of the dust removal frame 3 away from the limiting column 14, and the panel 11 is connected to the outer wall of the pipeline body 4. Reserved grooves 19 are provided on the pipeline body 4 at both ends of the insertion port 8, and reserved blocks corresponding to the reserved grooves 19 are provided on both ends of the panel 11 close to the pipeline body 4 to reduce the gap between the panel 11 and the pipeline body 4;

[0032] Slow flow plates 5 are arranged on both sides of the pipe body 4, and the slow flow plates 5 are arranged in a staggered manner. When the smoke enters the pipe body 4, it moves upward through the gaps between the slow flow plates 5, which is conducive to slowing down the speed of the smoke entering the pipe body 4, thereby improving the subsequent filtering and dust removal effect;

[0033] The slow flow plate 5 is evenly connected to the inner wall of the pipeline body 4 through the rotating shaft, and the top side of the slow flow plate 5 is connected to the inner wall of the pipeline body 4 through the buffer spring 15;

[0034] When the gas passes through, the slow flow plate 5 compresses the buffer spring 15, and the pressure is dispersed and buffered by the resilience of the buffer spring 15, so that the slow flow plate 5 is not easily damaged;

[0035] A rotating seat 10 is provided at both ends of one side of the panel 11, and the interior of the rotating seat 10 is rotatably connected to a clamp 9 through a rotating shaft, and a clamp block 6 matching the clamp 9 is provided on the outer wall of the pipe body 4, and a handle 20 is provided on the panel 11;

[0036] When the filter element 13 needs to be replaced, the clamping member 9 can be rotated outward to separate the clamping block 6, and then the panel 11 and the dust removal frame 3 can be pulled out through the handle 20 to replace the internal filter element 13, which is convenient and quick;

[0037] The specific model and specifications of the induced draft fan body 1 need to be determined by selection calculation based on the specification parameters of the device, and the selection calculation method is a prior art, so it will not be described in detail.

[0038] Working principle: When the embodiment of the present application is in use, the input end of the induced draft fan body 1 is connected to the exhaust port of the pyrolysis gasification furnace, and the output end is fixedly connected to the connecting flange 2 of the pipeline body 4. The dust removal frame 3 is evenly filled with filter elements 13. The dust removal frame 3 is inserted into the pipeline body 4 through the insertion port 8 on one side of the pipeline body 4. The limiting column 14 is correspondingly connected to the limiting groove 7 to limit the dust removal frame 3. The panel 11 is connected to the outer wall of the pipeline body 4. When the induced draft fan body 1 is in operation, the flue gas in the pyrolysis gasification furnace is drawn out to the inside of the pipeline body 4. The flue gas moves upward through the gap between the slow flow plates 5, which is conducive to slowing down the flue gas entering the pipeline body. 4, thereby improving the effect of filtering and dust removal. At the same time, when the gas passes through, the slow flow plate 5 compresses the buffer spring 15, and the pressure is dispersed and buffered by the resilience of the buffer spring 15, so that the slow flow plate 5 is not easy to be damaged. Then the gas enters the filter element 13 through the through hole 12 at the bottom of the dust removal frame 3, and the impurities in the flue gas are adsorbed and filtered through the filter element 13. There is no need to connect additional dust removal equipment to filter the flue gas, which improves the work efficiency. When the filter element 13 needs to be replaced, the clamping piece 9 can be rotated outward to separate the clamping block 6, and then the panel 11 and the dust removal frame 3 can be pulled out by the handle 20, and the internal filter element 13 can be replaced, which is convenient and quick.

[0039] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0041] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A duct structure of an induced draft fan, characterized in that: The invention comprises an induced draft fan body (1), a dust removal frame (3), a duct body (4) and a filter element (13); the output end of the induced draft fan body (1) is connected to the duct body (4), and the dust removal frame (3) is arranged at the top of the duct body (4); an insertion port (8) is provided on one side of the duct body (4); the dust removal frame (3) is inserted into the duct body (4) through the insertion port (8), and the filter element (13) is evenly filled inside the dust removal frame (3); a limiting column (14) is evenly arranged on one side of the dust removal frame (3); a limiting groove (7) matching the limiting column (14) is evenly arranged on the side of the duct body (4) close to the limiting column (14); a panel (11) is arranged on the side of the dust removal frame (3) away from the limiting column (14), and the panel (11) is connected to the outer wall of the duct body (4); and a handle (20) is arranged on the panel (11).

2. The induced draft fan pipeline structure according to claim 1, characterized in that: The bottom of the dust removal frame (3) is provided with through holes (12), and the through holes (12) are distributed at equal intervals.

3. The induced draft fan pipeline structure according to claim 1, characterized in that: The bottom end of the pipeline body (4) is connected to the air outlet end of the induced draft fan body (1) via a connecting flange (2), and mounting holes (16) are evenly distributed on the edge of the connecting flange (2).

4. The induced draft fan pipeline structure according to claim 3, characterized in that: An embedding groove (17) is provided on the bottom surface of the connecting flange (2), and a sealing member (18) is embedded inside the embedding groove (17). The sealing member (18) is made of a high-temperature resistant rubber material.

5. The induced draft fan pipeline structure according to claim 1, characterized in that: Flow-delay plates (5) are provided on both sides of the interior of the pipeline body (4), and the flow-delay plates (5) are distributed in a staggered manner.

6. The induced draft fan duct structure according to claim 5, characterized in that: The slow flow plate (5) is evenly connected to the inner wall of the pipeline body (4) through a rotating shaft, and the top side of the slow flow plate (5) is connected to the inner wall of the pipeline body (4) through a buffer spring (15).

7. The induced draft fan pipeline structure according to claim 1, characterized in that: The pipe body (4) at both ends of the insertion port (8) is provided with a reserved groove (19), and both ends of the panel (11) close to the pipe body (4) are provided with a reserved block corresponding to the reserved groove (19).

8. The induced draft fan pipeline structure according to claim 1, characterized in that: A rotating seat (10) is provided at both ends of one side of the panel (11), and a clamping piece (9) is rotatably connected to the interior of the rotating seat (10) via a rotating shaft, and a clamping block (6) matching the clamping piece (9) is provided on the outer wall of the pipe body (4).

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