Flue gas temperature control device of biomass boiler

Abstract

The utility model provides a biomass boiler flue gas temperature control device which comprises a boiler smoke exhaust pipe, a mounting plate, a temperature adjusting structure, a temperature detection area, an upper end extension pipe and a flue gas exhaust port, and the mounting plate is fixedly mounted at the lower end of the boiler smoke exhaust pipe and connected to a biomass boiler; the temperature adjusting structure is fixedly installed at the upper end of a boiler smoke exhaust pipe, the temperature detection area is fixedly installed at the upper end of the temperature adjusting structure, and the upper end extension pipe is fixedly installed at the upper end of the temperature detection area. The flue gas exhaust port is fixedly mounted at the top of the upper end extension pipe; due to the arrangement of the temperature adjusting structure and the flue gas exhaust port, the temperature of exhausted flue gas can be rapidly detected, and the temperature of the flue gas can be rapidly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler smoke exhaust, in particular to a biomass boiler smoke temperature control device. Background Art

[0002] A biomass boiler is a device that uses biomass fuels (such as wood chips, crop residues, etc.) to burn to generate heat or electricity. With the increasing global demand for environmental protection and renewable energy, biomass boilers play an important role in reducing greenhouse gas emissions and replacing fossil fuels. However, biomass boilers produce a large amount of high-temperature flue gas during operation, which is not only potentially harmful to the environment, but may also cause damage to subsequent processing equipment. Therefore, effective temperature control of flue gas emitted by biomass boilers has become a key technical challenge. However, the existing boiler exhaust structure still has the problem of being unable to quickly detect the temperature of the exhaust flue gas and unable to quickly reduce the temperature of the flue gas.

[0003] Therefore, it is very necessary to invent a biomass boiler flue gas temperature control device. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a biomass boiler flue gas temperature control device to solve the problem that the existing boiler exhaust structure still has the inability to quickly detect the temperature of the exhaust flue gas and the inability to quickly reduce the temperature of the flue gas. A biomass boiler flue gas temperature control device includes a boiler exhaust pipe, a mounting plate, a temperature adjustment structure, a temperature detection zone, an upper extension pipe and a flue gas outlet, wherein: the mounting plate is fixedly mounted on the lower end of the boiler exhaust pipe and connected to the biomass boiler; the temperature adjustment structure is fixedly mounted on the upper end of the boiler exhaust pipe, and the temperature detection zone is fixedly mounted on the upper end of the temperature adjustment structure, and the upper extension pipe is fixedly mounted on the upper end of the temperature detection zone; the flue gas outlet is fixedly mounted on the top of the upper extension pipe.

[0005] The temperature adjustment structure includes a supporting pipe, an air inlet, an air guide pipe, a distribution pipe and an air filling connecting pipe, and the supporting pipe is fixedly installed on the upper end of the boiler exhaust pipe, and the air inlet is fixedly installed on the outer side of the lower end of the supporting pipe; the air guide pipe is fixedly installed on the lower end of the air inlet, and the distribution pipe is fixedly installed on one end of the air guide pipe, and the air filling connecting pipe is fixedly installed on one end of the distribution pipe.

[0006] The temperature adjustment structure adopts a pipe for conducting flue gas, and the two ends of the temperature adjustment structure are connected to the boiler exhaust pipe and the temperature detection area through flanges; the air inlet adopts four groups of pipes inclined obliquely upward, and air guide pipes are arranged below the air inlet, and the air inlet is connected to the distribution pipe; the air inlet can exhaust gas outward, and its exhaust direction is consistent with the direction of flue gas emission; the distribution pipe adopts a steel metal pipe, and the gas connection pipe adopts a steel metal pipe, and is connected to the air pump, which has the following functions: ① Support pipe: fixed at the upper end of the boiler exhaust pipe, supporting the entire temperature ② Air inlet: introduce external air through four groups of air inlets inclined upward. These air inlets can exhaust air outward, and the exhaust direction is consistent with the smoke emission direction, ensuring the effective mixing of air and smoke, thereby quickly reducing the temperature of the smoke; ③ Air guide pipe: connects the air inlet and the distribution pipe to transmit the introduced air to the distribution pipe; ④ Distribution pipe: evenly distributes the air transmitted from the air guide pipe to each part to ensure that the air and smoke are fully mixed; ⑤ Gas connection pipe: connects to the air pump to control the amount of air entering the distribution pipe to achieve precise adjustment.

[0007] The flue gas outlet adopts a cylindrical structure that is wide in the middle and narrow at the top, and the flue gas outlet is made of curled steel plate. The opening diameter at the top of the flue gas outlet is smaller than the diameter of the boiler exhaust pipe, which has the following functions: ① Reduce the outlet diameter: The opening diameter at the top of the flue gas outlet is smaller than the diameter of the exhaust pipe. By reducing the outlet diameter, the flow rate of the flue gas can be increased; ② Accelerate the airflow velocity: Since the cross-sectional area at the outlet becomes smaller, the flue gas will accelerate when passing through this position, forming a faster airflow. According to Bernoulli's principle, when the airflow velocity increases, its kinetic energy increases, and part of the internal energy is converted into kinetic energy, thereby reducing the flue gas temperature; ③ Reduce the flue gas temperature: By accelerating the airflow velocity, the temperature of the flue gas will drop, avoiding damage to the emission equipment and the surrounding environment caused by high-temperature flue gas, while improving the safety and reliability of the system.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] 1. The setting of the temperature adjustment structure of the utility model has the following functions: ① Support pipe: fixed at the upper end of the boiler exhaust pipe, supporting the entire temperature adjustment structure and forming a path for the movement of the flue gas; ② Air inlet: introducing external air through four groups of air inlets inclined obliquely upward. These air inlets can exhaust air to the outside, and the exhaust direction is consistent with the flue gas emission direction, thereby ensuring the effective mixing of air and flue gas, thereby quickly reducing the temperature of the flue gas; ③ Air guide pipe: connecting the air inlet and the distribution pipe, and transmitting the introduced air to the distribution pipe; ④ Distribution pipe: evenly distributing the air transmitted from the air guide pipe to each part, ensuring that the air and the flue gas are fully mixed; ⑤ Gas filling connecting pipe: connected to the air pump, controlling the amount of air entering the distribution pipe, and realizing precise regulation.

[0010] 2. The setting of the smoke exhaust port of the utility model has the following functions: 1. Reduce the diameter of the exhaust port:

[0011] The top opening diameter of the smoke exhaust outlet is smaller than the diameter of the smoke exhaust pipe. By reducing the outlet diameter, the smoke flow rate can be increased; ② Accelerate the airflow velocity: Since the cross-sectional area at the outlet becomes smaller, the smoke will accelerate when passing through this position, forming a faster airflow. According to Bernoulli's principle, when the airflow velocity increases, its kinetic energy increases, and part of the internal energy is converted into kinetic energy, thereby reducing the smoke temperature; ③ Reduce the smoke temperature: By increasing the airflow velocity, the smoke temperature will drop, avoiding damage to the emission equipment and the surrounding environment caused by high-temperature smoke, while improving the safety and reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is an enlarged view of point A of the present utility model.

[0014] In the figure:

[0015] Boiler smoke exhaust pipe 1, mounting plate 2, temperature adjustment structure 3, support pipe 31, air inlet 32, air guide pipe 33, distribution pipe 34, gas supply connecting pipe 35, temperature detection area 4, upper end extension pipe 5, smoke exhaust port 6. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be described clearly and completely below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment 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.

[0017] As attached Figure 1 To Attachment Figure 2 shown.

[0018] The utility model provides a biomass boiler flue gas temperature control device, comprising a boiler exhaust pipe 1, a mounting plate 2, a temperature adjustment structure 3, a temperature detection zone 4, an upper extension pipe 5 and a flue gas outlet 6, wherein: the mounting plate 2 is fixedly mounted on the lower end of the boiler exhaust pipe 1 and connected to the biomass boiler; the temperature adjustment structure 3 is fixedly mounted on the upper end of the boiler exhaust pipe 1, and the temperature detection zone 4 is fixedly mounted on the upper end of the temperature adjustment structure 3, and the upper extension pipe 5 is fixedly mounted on the upper end of the temperature detection zone 4; the flue gas outlet 6 is fixedly mounted on the top of the upper extension pipe 5.

[0019] The temperature adjustment structure 3 includes a supporting pipe 31, an air inlet 32, an air guide pipe 33, a distribution pipe 34 and an air supply connecting pipe 35, and the supporting pipe 31 is fixedly installed on the upper end of the boiler exhaust pipe 1, and the air inlet 32 ​​is fixedly installed on the outer side of the lower end of the supporting pipe 31; the air guide pipe 33 is fixedly installed on the lower end of the air inlet 32, and the distribution pipe 34 is fixedly installed on one end of the air guide pipe 33, and the air supply connecting pipe 35 is fixedly installed on one end of the distribution pipe 34.

[0020] The biomass boiler flue gas temperature control device is a system designed for biomass boilers to regulate and control the temperature of the exhaust flue gas. The device ensures the safe and efficient operation of the boiler system and reduces the negative impact on the environment through the coordinated work of a series of structures and components. The following is a detailed description of the working principle of the device.

[0021] Main components

[0022] 1. Boiler exhaust pipe 1

[0023] 2. Mounting plate 2

[0024] 3. Temperature adjustment structure 3

[0025] 4. Temperature detection area 4

[0026] 5. Upper extension tube 5

[0027] 6. Smoke exhaust port 6

[0028] 7. Support pipe 31

[0029] 8. Air Inlet 32

[0030] 9. Airway 33

[0031] 10. Distribution pipe 34

[0032] 11. Gas connection pipe 35

[0033] Working process

[0034] 1. Start of flue gas emission:

[0035] The high-temperature flue gas generated by the combustion of the biomass boiler begins to be discharged through the boiler exhaust pipe 1. These flue gases usually have a high temperature and need to be effectively regulated and controlled to protect the equipment and the environment.

[0036] 2. Temperature regulation:

[0037] The temperature adjustment structure 3 is located at the upper end of the boiler exhaust pipe 1 , and includes a supporting pipe 31 , an air inlet 32 ​​, an air guide pipe 33 , a distribution pipe 34 and an air supply connection pipe 35 .

[0038] The air inlet 32 ​​introduces external air and evenly mixes the air into the high-temperature flue gas through the air guide pipe 33 and the distribution pipe 34, thereby reducing the flue gas temperature. The air supply connection pipe 35 is connected to the air pump to accurately control the temperature by adjusting the amount of incoming air.

[0039] 3. Temperature detection:

[0040] The mixed smoke enters the temperature detection area 4, which is equipped with a temperature sensor for real-time monitoring of the smoke temperature. The monitoring data can be fed back to the control system to adjust the air volume of the air inlet 32 ​​to keep the smoke within the ideal temperature range.

[0041] 4. Acceleration of flue gas emission:

[0042] The regulated flue gas passes through the upper extension pipe 5 and enters the flue gas outlet 6. The flue gas outlet 6 is designed to be a cylindrical structure with a wide middle and a narrow upper end, and the opening diameter at the top is smaller than the diameter of the boiler flue gas pipe 1.

[0043] This design uses the principles of fluid mechanics to increase the flue gas flow rate by reducing the outlet diameter. According to Bernoulli's principle, when the air flow rate increases, its kinetic energy increases, and part of the internal energy and heat energy is converted into kinetic energy, thereby reducing the flue gas temperature.

[0044] 5. Flue gas emission:

[0045] The accelerated low-temperature flue gas is smoothly discharged to the external environment through the flue gas outlet 6. Due to the special design of the outlet 6, the flue gas will not cause excessive thermal shock to the external environment when discharged, and at the same time reduce noise and improve the stability of the discharge process.

[0046] Key role

[0047] Reduce flue gas temperature: By introducing external air and accelerating exhaust, the temperature of high-temperature flue gas can be reduced to protect subsequent equipment and the environment.

[0048] Control the emission speed: reduce the diameter of the air outlet, increase the air flow rate, ensure the rapid emission of smoke, and reduce the impact on the environment.

[0049] Real-time temperature monitoring: The temperature detection area 4 monitors the flue gas temperature in real time and feeds back to the control system to ensure the stable operation of the system.

[0050] Improve system efficiency: Improve the operating efficiency and safety of the entire biomass boiler system by optimizing the flue gas flow path and temperature control.

[0051] in conclusion

[0052] The biomass boiler flue gas temperature control device achieves effective regulation and control of flue gas temperature through its ingenious design and precise control, ensuring the efficient and safe operation of the biomass boiler system and reducing the negative impact on the environment. This device is not only technologically advanced, but also shows extremely high practical value in actual applications.

[0053] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A biomass boiler flue gas temperature control device, characterized in that: The invention comprises a boiler smoke exhaust pipe (1), a mounting plate (2), a temperature adjustment structure (3), a temperature detection zone (4), an upper extension pipe (5) and a smoke exhaust port (6), wherein: the mounting plate (2) is fixedly mounted on the lower end of the boiler smoke exhaust pipe (1) and connected to the biomass boiler; the temperature adjustment structure (3) is fixedly mounted on the upper end of the boiler smoke exhaust pipe (1), and the temperature detection zone (4) is fixedly mounted on the upper end of the temperature adjustment structure (3); the upper extension pipe (5) is fixedly mounted on the upper end of the temperature detection zone (4); and the smoke exhaust port (6) is fixedly mounted on the top of the upper extension pipe (5).

2. A biomass boiler flue gas temperature control device according to claim 1, characterized in that: The temperature adjustment structure (3) comprises a supporting pipe (31), an air inlet (32), an air guide pipe (33), a distribution pipe (34) and an air supply connection pipe (35), wherein the supporting pipe (31) is fixedly mounted on the upper end of the boiler smoke exhaust pipe (1), and the air inlet (32) is fixedly mounted on the outer side of the lower end of the supporting pipe (31); the air guide pipe (33) is fixedly mounted on the lower end of the air inlet (32), and the distribution pipe (34) is fixedly mounted on one end of the air guide pipe (33), and the air supply connection pipe (35) is fixedly mounted on one end of the distribution pipe (34).

3. A biomass boiler flue gas temperature control device as claimed in claim 2, characterized in that: The temperature adjustment structure (3) adopts a pipe for conducting flue gas, and the two ends of the temperature adjustment structure (3) are connected to the boiler exhaust pipe (1) and the temperature detection area (4) through flanges; the air inlet (32) adopts four groups of pipes inclined obliquely upward, and air guide pipes (33) are arranged below the air inlet (32), and the air inlet (32) is connected to the distribution pipe (34); the air inlet (32) can exhaust gas to the outside, and its exhaust direction is consistent with the direction of flue gas discharge; the distribution pipe (34) adopts a steel metal pipe, and the gas connection pipe (35) adopts a steel metal pipe and is connected to the air pump.

4. A biomass boiler flue gas temperature control device according to claim 1, characterized in that: The smoke exhaust port (6) is a cylindrical structure that is wide in the middle and narrow at the top, and is made of rolled steel plates. The opening diameter at the top of the smoke exhaust port (6) is smaller than the diameter of the boiler smoke exhaust pipe (1).

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