Flue gas treatment device for biomass fuel boiler

Abstract

The utility model discloses a biomass fuel boiler flue gas treatment device which comprises a cylinder body, a spiral heat exchange pipe is installed in the cylinder body, one end of the spiral heat exchange pipe is connected with a water inlet pipe through a pipe connector, and the other end of the spiral heat exchange pipe is connected with a water pump on a water storage tank through a water drainage pipe. An air inlet of the barrel is connected with a filter bin through a connecting pipe, an air inlet pipe is arranged on the side face of the filter bin, a filter screen and an activated carbon layer are arranged in the filter bin, an exhaust fan is installed at an air outlet of the barrel, and an exhaust pipe is arranged on the side face of the exhaust fan. The heat exchanger is scientific and reasonable in structural design, the spiral heat exchange pipes are arranged in the heat exchange mechanism, the effective contact area of the heat exchange pipes is increased, and therefore the heat exchange efficiency between a water source and smoke is improved, and the heat exchange effect is enhanced; and environmental pollution caused by the fact that impurities in the flue gas are discharged into the air is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of boiler flue gas treatment equipment, specifically a biomass fuel boiler flue gas treatment device. Background Technology

[0002] Biomass fuel can be used as an energy source for boilers. A boiler is an energy conversion device; the energy input to a boiler includes the chemical energy of the fuel and electrical energy, and the boiler outputs steam, high-temperature water, or organic heat carriers with a certain amount of thermal energy. The original meaning of "boiler" refers to a water-filled container heated over a fire, while "furnace" refers to the place where fuel is burned; a boiler consists of two main parts: the boiler and the furnace. The hot water or steam produced in the boiler can directly provide the heat energy needed for industrial production and daily life, or it can be converted into mechanical energy through a steam power device, or further converted into electrical energy through a generator. Boilers that provide hot water are called hot water boilers, mainly used for domestic purposes, with some applications in industrial production. Existing boiler flue gas heat recovery devices are complex in structure, cumbersome in operation, and suffer from incomplete waste heat recovery, significant waste during waste heat recovery, and a lack of flue gas treatment devices, leading to environmental pollution when flue gas is emitted. Therefore, we propose a biomass fuel boiler flue gas treatment device. Utility Model Content

[0003] The purpose of this invention is to provide a biomass fuel boiler flue gas treatment device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a biomass fuel boiler flue gas treatment device, comprising a cylindrical body, wherein a spiral heat exchange tube is installed inside the cylindrical body, one end of the spiral heat exchange tube is connected to a water inlet pipe through a pipe joint, and the other end of the spiral heat exchange tube is connected to a water pump on a water storage tank through a drain pipe, the air inlet of the cylindrical body is connected to a filter chamber through a connecting pipe, an air inlet pipe is provided on the side of the filter chamber, a filter screen and an activated carbon layer are provided inside the filter chamber, an exhaust fan is installed at the air outlet of the cylindrical body, and an exhaust pipe is provided on the side of the exhaust fan.

[0005] In the above scheme, the spiral heat exchange tube is mounted on the support rod.

[0006] In the above scheme, a support column is provided at the bottom of the cylinder.

[0007] In the above scheme, an observation window and an operation panel are provided on the outer side of the cylinder.

[0008] In the above scheme, a valve is installed on the drain pipe.

[0009] In the above scheme, a temperature sensor is installed inside the cylinder.

[0010] In the above scheme, a filter cotton layer is provided inside the exhaust pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This biomass fuel boiler flue gas treatment device has a simple and reasonable structural design and strong practicality. By setting a spiral heat exchange tube inside the heat exchange mechanism, the effective contact area of ​​the heat exchange tube is increased, thereby improving the heat exchange efficiency between the water source and the flue gas and enhancing the heat exchange effect. By setting a filter chamber as a filtration mechanism, the filter screen and activated carbon layer inside can filter and collect impurities in the flue gas, preventing impurities in the flue gas from being emitted into the air and causing environmental pollution. At the same time, it reduces the probability of ash generation inside the heat exchange mechanism, making it easier to clean effectively. By setting an exhaust fan at the air outlet of the cylinder, the airflow can be quickly discharged by starting the fan, which speeds up the processing efficiency and can also remove the dust deposited on the outer surface of the serpentine heat exchange tube, effectively improving the working efficiency of the waste heat recovery device. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the filter chamber structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the external structure of the cylindrical body of this utility model.

[0015] In the diagram: 1. Cylinder body; 11. Spiral heat exchange tube; 12. Support rod; 13. Pipe joint; 14. Water inlet pipe; 15. Valve; 16. Drain pipe; 17. Water pump; 18. Water storage tank; 19. Support column; 2. Observation window; 21. Operation panel; 22. Temperature sensor; 23. Filter chamber; 24. Air inlet pipe; 25. Filter screen; 26. Activated carbon layer; 27. Connecting pipe; 28. Exhaust fan; 29. ​​Exhaust pipe. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-3This utility model provides a technical solution: a biomass fuel boiler flue gas treatment device, including a cylindrical body 1. A spiral heat exchange tube 11 is installed inside the cylindrical body 1. One end of the spiral heat exchange tube 11 is connected to a water inlet pipe 14 via a pipe joint 13, and the other end is connected to a water pump 17 on a water storage tank 18 via a drain pipe 16. The air inlet of the cylindrical body 1 is connected to a filter chamber 23 via a connecting pipe 27. An air inlet pipe 24 is provided on the side of the filter chamber 23. A filter screen 25 and an activated carbon layer 26 are provided inside the filter chamber 23. An exhaust fan 28 is installed at the air outlet of the cylindrical body 1, and an exhaust pipe 29 is provided on the side of the exhaust fan 28. By installing an exhaust fan 28 at the air outlet of the cylindrical body 1, the airflow can be quickly discharged upon startup, accelerating the treatment efficiency and removing dust deposited on the outer surface of the serpentine heat exchange tube, effectively improving the working efficiency of the waste heat recovery device.

[0018] In the above scheme, the spiral heat exchange tube 11 is mounted on the support rod 12. By setting a spiral serpentine heat exchange tube inside the heat exchange mechanism, the effective contact area of ​​the heat exchange tube is increased, thereby improving the heat exchange efficiency between the water source and the flue gas, allowing the water source to fully contact the heat inside the flue gas, and further enhancing the heat exchange effect.

[0019] In the above scheme, a support column 19 is provided at the bottom of the cylinder 1. The support column 19 provides stable support for the cylinder 1.

[0020] In the above scheme, an observation window 2 and an operation panel 21 are provided on the outer side of the cylinder 1. The design of the observation window 2 facilitates observation of the interior of the cylinder 1, and the design of the operation panel 21 facilitates operation and control of the electrical mechanism.

[0021] In the above scheme, a valve 15 is installed on the drain pipe 16. After opening the valve 15, the water pump 17 is started, which can quickly discharge the heat-exchanged water from inside the spiral heat exchange tube 11 into the water storage tank 18 through the drain pipe 16. Then, cold water can continue to be added into the spiral heat exchange tube 11 through the water inlet pipe 14 for heat exchange, thereby improving the absorption effect of heat inside the flue gas.

[0022] In the above scheme, a temperature sensor 22 is installed inside the cylinder 1. The temperature sensor 22 can detect the temperature inside the cylinder 1, allowing for adjustment and control of the equipment based on corresponding temperature changes.

[0023] In the above scheme, a filter cotton layer is provided inside the exhaust pipe 29. By setting the filter chamber 23 as a filtration mechanism, the filter screen 25 and activated carbon layer 26 inside it can filter and collect impurities in the flue gas, preventing impurities in the flue gas from being emitted into the air and causing environmental pollution. At the same time, it reduces the probability of ash generation inside the heat exchange mechanism, making it easier to clean effectively.

[0024] Working principle:

[0025] In practical use, this biomass fuel boiler flue gas treatment device introduces cold water into the spiral heat exchange tube 11 inside the cylinder 1 through the inlet pipe 14 and pipe joint 13 as a heat exchange medium. Then, the biomass fuel boiler flue gas carrying residual heat is introduced into the filter chamber 23 through the air inlet pipe 24. Under the combined action of the filter screen 25 and activated carbon layer 26 inside, impurities in the flue gas can be filtered and collected, preventing impurities in the flue gas from being emitted into the air and causing environmental pollution. Afterward, the flue gas enters the cylinder 1 through the connecting pipe 27. During this process, the cold water inside the spiral heat exchange tube 11 exchanges heat with the flue gas, causing the temperature of the cold water to rise and the temperature of the flue gas to drop. Then, the exhaust fan 28 is turned on to discharge the treated flue gas from the exhaust pipe 29.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biomass fuel boiler flue gas treatment device comprising a cylinder (1), characterized in that: The cylinder (1) is equipped with a spiral heat exchange tube (11). One end of the spiral heat exchange tube (11) is connected to a water inlet pipe (14) through a pipe joint (13). The other end of the spiral heat exchange tube (11) is connected to a water pump (17) on a water storage tank (18) through a drain pipe (16). The air inlet of the cylinder (1) is connected to a filter chamber (23) through a connecting pipe (27). An air inlet pipe (24) is provided on the side of the filter chamber (23). A filter screen (25) and an activated carbon layer (26) are provided inside the filter chamber (23). An exhaust fan (28) is installed at the air outlet of the cylinder (1). An exhaust pipe (29) is provided on the side of the exhaust fan (28).

2. A device for treating flue gas from a biomass fuel boiler according to claim 1, characterized in that: The spiral heat exchange tube (11) is mounted on the support rod (12).

3. A device for treating flue gas of a biomass fuel boiler according to claim 1, characterized in that: The bottom of the cylinder (1) is provided with a support column (19).

4. The biomass fuel boiler flue gas treatment device according to claim 1, characterized in that: An observation window (2) and an operation panel (21) are provided on the outside of the cylinder (1).

5. A device for treating flue gas of a biomass fuel boiler according to claim 1, characterized in that: A valve (15) is installed on the drain pipe (16).

6. A device for treating flue gas of a biomass fuel boiler according to claim 1, characterized in that: A temperature sensor (22) is installed inside the cylinder (1).

7. A device for treating flue gas of a biomass fuel boiler according to claim 1, characterized in that: The exhaust pipe (29) is equipped with a filter cotton layer.

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