A flue gas purification device of a biomass gas boiler

Abstract

The utility model discloses a flue gas purification device of biomass gas boiler belongs to biomass gas boiler technical field, including bottom plate, the top surface fixed connection of bottom plate has dust fall box, the top of bottom plate is provided with adsorption mechanism, be provided with filter equipment on the dust fall box, the top surface fixed mounting of dust fall box has the air pump. In the utility model, the bottom storage purification water of dust fall box inner chamber, through the cooperation of water pump, water suction pipe, water distribution tank, annular hole and atomizing spray head makes the circulation flow of purification water in the inner chamber of dust fall box, thereby utilizes the circulating water to carry out dust removal to the flue gas, and through the filter screen in the filter frame to the flue gas in the flue gas and the water in the flue gas filters, guarantees the water that falls to the dust fall box inner chamber bottom to keep clean, to guarantee the quality of circulating water to the flue gas purification.

Description

Technical Field

[0001] This utility model relates to the field of biomass gas boiler technology, and more specifically, to a flue gas purification device for a biomass gas boiler. Background Technology

[0002] A biomass boiler is a type of boiler that uses biomass energy as fuel. A biomass gas boiler is a type of boiler that uses biomass gas as fuel and is mainly used to generate heat or steam. Biomass gas is a combustible gas produced by the gasification process of solid biomass raw materials. During operation, biomass gas boilers will produce flue gas containing a certain amount of dust, which needs to be purified.

[0003] Utility model patent CN209237599U discloses a flue gas purification device for a biomass gas boiler, including a base, a platform on top of the base, a filter device on top of the platform, a filter box, a motor on one side of the filter box, a fixing frame on top of the motor, the fixing frame being fixedly connected to the filter box, a rotating shaft on one side of the motor, the rotating shaft passing through the filter box and extending into it, a motor output shaft being fixedly connected to the rotating shaft, a wind vane on the outside of the rotating shaft, an air inlet pipe on top of the filter box, the air inlet pipe passing through the filter box and extending into it, a fixing rod inside the air inlet pipe, and the fixing rod being fixedly connected to the inner wall of the air inlet pipe; this patent, by incorporating a filter device, allows a sprayer to spray water mist into the gap between a spray plate and a limiting plate through a spray pipe and a spray head, resulting in uniform mixing of the water mist and flue gas, which is beneficial for adsorbing dust in the flue gas. However, the aforementioned patents have the following shortcomings: when continuously purifying flue gas, it is not convenient to recycle the dust settling water, which is relatively wasteful of water resources; and when the moisture in the flue gas comes into contact with the activated carbon filter plate, the activated carbon filter plate is easily wetted by moisture, requiring frequent replacement, which is not very convenient. Therefore, we propose a flue gas purification device for a biomass gas boiler. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a flue gas purification device for a biomass gas boiler.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A flue gas purification device for a biomass gas boiler includes a base plate, a dust settling box fixedly connected to the top surface of the base plate, an adsorption mechanism on the top of the base plate, a filter mechanism on the dust settling box, an air pump fixedly installed on the top surface of the dust settling box, an air intake pipe fixedly connected to the input end of the air pump, an air output end extending into the inner cavity of the dust settling box and fixedly connected to an air jet hood, a plurality of air jet holes opened on the bottom surface of the air jet hood, a water pump fixedly installed on the side of the dust settling box, a water suction pipe fixedly connected to the input end of the water pump, an end of the water suction pipe fixedly sleeved to the bottom of the inner cavity of the dust settling box, an output end extending into the inner cavity of the dust settling box and fixedly connected to a water distribution box, an annular hole opened on the bottom surface of the water distribution box, and a plurality of atomizing nozzles fixedly installed on the bottom surface of the water distribution box.

[0007] In a preferred embodiment of this utility model, the adsorption mechanism includes an adsorption box fixedly connected to the top surface of a base plate. The top surface of the adsorption box has a rear slot and a front slot. A support frame is placed on the top surface of the adsorption box. A temperature-conducting plate is fixedly sleeved on the inner side of the support frame. A semiconductor cooling chip is fixedly installed on the top surface of the temperature-conducting plate. Heat dissipation fins are fixedly connected to the heating surface of the semiconductor cooling chip. Multiple condensing fins are fixedly connected to the bottom surface of the temperature-conducting plate. The condensing fins extend through the front slot into the inner cavity of the adsorption box. A support plate is placed on the top surface of the adsorption box. A housing is fixedly connected to the bottom surface of the support plate. The bottom end of the housing extends through the rear slot into the inner cavity of the adsorption box. An insertion slot is provided on the housing. An activated carbon plate is sleeved in the inner cavity of the insertion slot. An air pump is fixedly installed on the side of the adsorption box. The input end of the air pump extends into the inner cavity of the dust settling box, and the output end of the air pump extends into the inner cavity of the adsorption box. An exhaust pipe is fixedly sleeved on the other side of the adsorption box.

[0008] As a preferred embodiment of this utility model, the filtration mechanism includes a pull-out groove on the front of the dust settling box and two support seats fixedly connected to the inner wall of the dust settling box. A filter frame is placed on the two support seats. A filter screen is fixedly sleeved in the inner cavity of the filter frame. The front end of the filter frame extends through the pull-out groove to the front of the dust settling box and is fixedly connected to a handle. The side of the filter frame is in contact with the inner wall of the dust settling box.

[0009] As a preferred embodiment of this utility model, a control panel is fixedly installed on the side of the dust collection box, and the control panel is electrically connected to the air pump, water pump, evacuation pump and semiconductor cooling chip respectively.

[0010] As a preferred embodiment of the present invention, a first drain valve is fixedly installed on the front of the dust collection box, and the end of the first drain valve extends to the bottom of the inner cavity of the dust collection box.

[0011] As a preferred embodiment of this utility model, a second drain valve is fixedly installed on the front of the adsorption box, and the end of the second drain valve extends to the bottom of the inner cavity of the adsorption box.

[0012] Compared with existing technologies, the advantages of this utility model are:

[0013] (1) In this utility model, purified water is stored at the bottom of the dust settling box. The purified water is circulated in the dust settling box by the cooperation of a water pump, a water pipe, a water distribution box, an annular hole and an atomizing nozzle. The circulating water is used to remove dust from the flue gas. In addition, the filter screen in the filter frame filters the dust in the flue gas and the dust in the water, ensuring that the water falling to the bottom of the dust settling box remains clean, so as to ensure the quality of the circulating water in purifying the flue gas.

[0014] (2) In this utility model, the cooling fins are cooled by the semiconductor cooling chip. The flue gas purified in the dust settling box is introduced into the adsorption box by the air pump. The flue gas is condensed by the cooling fins so that the water vapor in the flue gas can be condensed and liquefied. At the same time, multiple inclined cooling fins are used to block the dust in the flue gas, so as to further remove dust from the flue gas. This also avoids the water vapor in the flue gas from affecting the subsequent activated carbon plate, which facilitates the subsequent adsorption and purification of odors in the flue gas by the activated carbon plate. This improves the efficiency of the flue gas purification device for biomass gas boiler. Attached Figure Description

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

[0016] Figure 2 This is an exploded view of the overall structure of this utility model;

[0017] Figure 3 This is a cross-sectional schematic diagram of the dust collection box of this utility model;

[0018] Figure 4 This is an exploded view of the adsorption mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the support frame of this utility model.

[0020] The following are the labeling options in the diagram: 1. Base plate; 2. Dust settling box; 3. Adsorption mechanism; 4. Air pump; 5. Air intake pipe; 6. Air jet hood; 7. Air jet hole; 8. Water pump; 9. Water intake pipe; 10. Water distribution tank; 11. Annular hole; 12. Atomizing nozzle; 13. Filtration mechanism; 14. Adsorption box; 15. Air pump; 16. Front slot; 17. Rear slot; 18. Support frame; 19. Temperature guiding plate; 20. Semiconductor cooling chip; 21. Heat dissipation fins; 22. Condensation fins; 23. Support plate; 24. Set box; 25. Insertion slot; 26. Activated carbon plate; 27. Second drain valve; 28. First drain valve; 29. ​​Pull-out slot; 30. Support base; 31. Filter frame; 32. Filter screen; 33. Handle; 34. Control panel; 35. Exhaust pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1:

[0025] Please see Figure 1-5A flue gas purification device for a biomass gas boiler includes a base plate 1, a dust settling box 2 fixedly connected to the top surface of the base plate 1, an adsorption mechanism 3 provided on the top of the base plate 1, a filter mechanism 13 provided on the dust settling box 2, an air pump 4 fixedly installed on the top surface of the dust settling box 2, an air intake pipe 5 fixedly connected to the input end of the air pump 4, an air output end of the air pump 4 extending into the inner cavity of the dust settling box 2 and fixedly connected to an air jet hood 6, a plurality of air jet holes 7 opened on the bottom surface of the air jet hood 6, a water pump 8 fixedly installed on the side of the dust settling box 2, a water suction pipe 9 fixedly connected to the input end of the water pump 8, an end of the water suction pipe 9 fixedly sleeved to the bottom of the inner cavity of the dust settling box 2, an output end of the water pump 8 extending into the inner cavity of the dust settling box 2 and fixedly connected to a water distribution box 10, an annular hole 11 opened on the bottom surface of the water distribution box 10, and a plurality of atomizing nozzles 12 fixedly installed on the bottom surface of the water distribution box 10.

[0026] In this embodiment, the end of the air intake pipe 5 is connected to the flue gas outlet of the biomass gas boiler, thereby guiding the flue gas into the inner cavity of the jet hood 6 and discharging it into the inner cavity of the dust settling box 2 from the jet hole 7 below the jet hood 6.

[0027] For details, please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 The adsorption mechanism 3 includes an adsorption box 14 fixedly connected to the top surface of the base plate 1. A rear slot 17 and a front slot 16 are provided on the top surface of the adsorption box 14. A support frame 18 is placed on the top surface of the adsorption box 14. A temperature-conducting plate 19 is fixedly sleeved inside the support frame 18. A semiconductor cooling chip 20 is fixedly mounted on the top surface of the temperature-conducting plate 19. Heat dissipation fins 21 are fixedly connected to the heating surface of the semiconductor cooling chip 20. Multiple condensing fins 22 are fixedly connected to the bottom surface of the temperature-conducting plate 19. The condensing fins 22 extend through the front slot 16 into the adsorption box. Inside the adsorption box 14, a support plate 23 is placed on the top surface of the adsorption box 14, and a set box 24 is fixedly connected to the bottom surface of the support plate 23. The bottom end of the set box 24 extends through the rear slot 17 into the inner cavity of the adsorption box 14. An insertion slot 25 is provided on the set box 24, and an activated carbon plate 26 is fitted inside the insertion slot 25. An air pump 15 is fixedly installed on the side of the adsorption box 14. The input end of the air pump 15 extends into the inner cavity of the dust settling box 2, and the output end of the air pump 15 extends into the inner cavity of the adsorption box 14. An exhaust pipe 35 is fixedly fitted on the other side of the adsorption box 14.

[0028] In this embodiment, the two sides of the condenser fins 22 are in contact with the inner wall of the adsorption box 14, and the bottom surface of the condenser fins 22 is in contact with the bottom surface of the inner cavity of the adsorption box 14, ensuring that the condenser fins 22 can condense all the flue gas. At the same time, the inclined condenser fins 22 can block the dust in the flue gas, achieving a further dust removal and purification effect. The two sides of the set box 24 and the activated carbon plate 26 are in contact with the inner wall of the adsorption box 14, ensuring that the activated carbon plate 26 can adsorb and purify all the odors in the flue gas. The cooling surface of the semiconductor cooling chip 20 is in contact with the top surface of the temperature conducting plate 19.

[0029] For details, please refer to Figure 1 and Figure 2 The filtration mechanism 13 includes a pull-out groove 29 on the front of the dust settling box 2 and two support seats 30 fixedly connected to the inner wall of the dust settling box 2. A filter frame 31 is placed on the two support seats 30. A filter screen 32 is fixedly sleeved in the inner cavity of the filter frame 31. The front end of the filter frame 31 extends through the pull-out groove 29 to the front of the dust settling box 2 and is fixedly connected to a handle 33. The side of the filter frame 31 fits against the inner wall of the dust settling box 2.

[0030] In this embodiment, the filter screen 32 is used to filter the dust in the flue gas. In addition, the input end of the air pump 15 is located below the filter screen 32 to ensure that the flue gas is filtered by the filter screen 32 before being introduced into the inner cavity of the adsorption box 14.

[0031] For details, please refer to Figures 1 to 5 A control panel 34 is fixedly installed on the side of the dust collection box 2. The control panel 34 is electrically connected to the air pump 4, water pump 8, induced draft pump 15, and semiconductor cooling chip 20.

[0032] In this embodiment, the control panel 34 is used to control the air pump 4, water pump 8, evacuation pump 15, and thermoelectric cooler 20, and the control panel 34, the air pump 4, water pump 8, evacuation pump 15, and thermoelectric cooler 20 are powered by the power supply of the external device.

[0033] For details, please refer to Figure 2 A first drain valve 28 is fixedly installed on the front of the dust settling box 2, and the end of the first drain valve 28 extends to the bottom of the inner cavity of the dust settling box 2.

[0034] In this embodiment, the wastewater inside the dust settling box 2 is discharged through the first drain valve 28 so as to replace the purified water.

[0035] For details, please refer to Figure 4 A second drain valve 27 is fixedly installed on the front of the adsorption box 14, and the end of the second drain valve 27 extends to the bottom of the inner cavity of the adsorption box 14.

[0036] In this embodiment, the second drain valve 27 is used to drain the water generated by condensation at the bottom of the adsorption tank 14.

[0037] Working principle: In use, first, water is poured into the bottom of the dust settling box 2 through the pull-out groove 29, with the water level below the input end of the induced draft pump 15. Then, the filter frame 31 is inserted into the dust settling box 2 through the pull-out groove 29. Next, the induced draft pump 4 is started, causing the induced draft pipe 5 to generate suction, thereby guiding the flue gas generated by the biomass gas boiler into the inner cavity of the jet hood 6. The flue gas in the jet hood 6 is then sprayed into the inner cavity of the dust settling box 2 through the jet nozzles 7. Finally, the water pump 8 is started, causing the water pump pipe 9 to produce... The suction force draws water from the bottom of the dust settling box 2 into the water distribution box 10 via the water suction pipe 9. This causes the water in the water distribution box 10 to be atomized and sprayed downwards from the atomizing nozzle 12. Simultaneously, the water in the water distribution box 10 falls downwards through the annular hole 11, forming a water curtain. The atomized water, the water curtain, and the dust in the flue gas come into contact, increasing the weight of the dust and thus facilitating its treatment. Furthermore, when the dust and flue gas pass through the filter screen 32 on the filter frame 31, the filter screen... The filter 32 filters the dust in the flue gas, and the filtered flue gas enters the bottom of the inner cavity of the dust settling box 2. At the same time, the filter screen 32 filters the purified water, and the filtered water falls back to the bottom of the inner cavity of the dust settling box 2, so that the water can be recycled. Then, the semiconductor cooling chip 20 is energized to make its cooling surface low temperature. The low temperature of the cooling surface of the semiconductor cooling chip 20 makes the temperature conducting plate 19 and the condensing fins 22 low temperature. In addition, the air pump 15 is started to generate suction to the bottom of the inner cavity of the dust settling box 2, thereby drawing the flue gas from the bottom of the inner cavity of the dust settling box 2 into the inner cavity of the adsorption box 14. The low temperature of the condensing fins 22 condenses the flue gas, thereby condensing the water vapor in the flue gas into liquid. At the same time, multiple inclined condensing fins 22 further block the dust in the flue gas, thereby achieving further dust removal from the flue gas. Finally, the activated carbon plate 26 adsorbs the odor in the flue gas, and the purified flue gas is discharged through the exhaust pipe 35.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A flue gas purification device for a biomass gas boiler, comprising a base plate (1), characterized in that: A dust settling box (2) is fixedly connected to the top surface of the base plate (1). An adsorption mechanism (3) is provided on the top of the base plate (1). A filter mechanism (13) is provided on the dust settling box (2). An air pump (4) is fixedly installed on the top surface of the dust settling box (2). An air intake pipe (5) is fixedly connected to the input end of the air pump (4). The output end of the air pump (4) extends into the inner cavity of the dust settling box (2) and is fixedly connected to an air jet hood (6). Multiple air jets are provided on the bottom surface of the air jet hood (6). A water pump (8) is fixedly installed on the side of the dust settling box (2), and a water pump (9) is fixedly connected to the input end of the water pump (8). The end of the water pump (9) is fixedly sleeved to the bottom of the inner cavity of the dust settling box (2). The output end of the water pump (8) extends into the inner cavity of the dust settling box (2) and is fixedly connected to a water distribution box (10). An annular hole (11) is opened on the bottom surface of the water distribution box (10), and multiple atomizing nozzles (12) are fixedly installed on the bottom surface of the water distribution box (10).

2. The flue gas purification device for a biomass gas boiler according to claim 1, characterized in that: The adsorption mechanism (3) includes an adsorption box (14) fixedly connected to the top surface of the base plate (1). A rear slot (17) is provided on the top surface of the adsorption box (14), and a front slot (16) is provided on the top surface of the adsorption box (14). A support frame (18) is placed on the top surface of the adsorption box (14). A temperature-conducting plate (19) is fixedly sleeved on the inner side of the support frame (18). A semiconductor cooling chip (20) is fixedly installed on the top surface of the temperature-conducting plate (19). Heat dissipation fins (21) are fixedly connected to the heating surface of the semiconductor cooling chip (20). Multiple condensing fins (22) are fixedly connected to the bottom surface of the temperature-conducting plate (19). The condensing fins (22) extend through the front slot (16) to the adsorption box. The adsorption box (14) has a support plate (23) on its top surface and a set box (24) fixedly connected to its bottom surface. The bottom end of the set box (24) extends through the rear slot (17) into the inner cavity of the adsorption box (14). The set box (24) has an insertion slot (25) and an activated carbon plate (26) is fitted inside the insertion slot (25). An air pump (15) is fixedly installed on the side of the adsorption box (14). The input end of the air pump (15) extends into the inner cavity of the dust settling box (2) and the output end of the air pump (15) extends into the inner cavity of the adsorption box (14). An exhaust pipe (35) is fixedly fitted on the other side of the adsorption box (14).

3. The flue gas purification device for a biomass gas boiler according to claim 2, characterized in that: The filtration mechanism (13) includes a pull-out groove (29) on the front of the dust settling box (2) and two support seats (30) fixedly connected to the inner wall of the dust settling box (2). A filter frame (31) is placed on the two support seats (30). A filter screen (32) is fixedly fitted into the inner cavity of the filter frame (31). The front end of the filter frame (31) extends through the pull-out groove (29) to the front of the dust settling box (2) and is fixedly connected to a handle (33). The side of the filter frame (31) is in contact with the inner wall of the dust settling box (2).

4. The flue gas purification device for a biomass gas boiler according to claim 2, characterized in that: A control panel (34) is fixedly installed on the side of the dust collection box (2). The control panel (34) is electrically connected to the air pump (4), water pump (8), evacuation pump (15), and semiconductor cooling chip (20).

5. The flue gas purification device for a biomass gas boiler according to claim 1, characterized in that: A first drain valve (28) is fixedly installed on the front of the dust settling box (2), and the end of the first drain valve (28) extends to the bottom of the inner cavity of the dust settling box (2).

6. The flue gas purification device for a biomass gas boiler according to claim 2, characterized in that: A second drain valve (27) is fixedly installed on the front of the adsorption box (14), and the end of the second drain valve (27) extends to the bottom of the inner cavity of the adsorption box (14).

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