Burner air supply device

Abstract

The utility model belongs to the technical field of combustors, and particularly relates to a combustor air supply device which comprises an air supply machine body, a flame channel and a circulation channel are arranged on the air supply machine body, an air inducing assembly used for controlling an air body is arranged in the circulation channel, and the air inducing assembly comprises an adjusting rod, an air gathering mixing baffle and a sealing sleeve. The air gathering and mixing baffle is located in the circulation channel, and the air gathering and mixing baffle is opposite to the bottom end face of the air gathering and mixing baffle through a burner air channel and a fuel gas channel; an adjusting mark groove of a required gear can be aligned to a fixed inserting plate, a connecting column drives an air gathering and mixing baffle to adjust the position in a circulation channel, and according to the position of the air gathering and mixing baffle, the air gathering and mixing baffle is close to a combustor air channel to prolong the air retention time and promote full mixing with fuel gas; gas and air are mixed in advance in the closed cavity and then fed into the combustion area, the phenomenon of uneven mixing is not prone to occurring, and the combustion efficiency is improved.

Description

A burner air supply device Technical Field

[0001] This utility model belongs to the field of burner technology, specifically relating to a burner air supply device. Background Technology

[0002] A burner is a general term for a device that sprays fuel and air in a certain way to mix and burn. Burners are classified into several types according to their application fields, including industrial burners, combustion engines, civil burners, and special burners. The combustion process involves the initial mixing of fuel gas and a portion of air to ensure stable ignition. Inside the burner, air swirlers and fuel gas swirlers are installed. High-speed airflow or turbulence generated by swirling flow breaks the laminar flow boundary and enhances the mixing of fuel gas and air.

[0003] Gas and air enter the combustion zone separately to achieve stable combustion. However, because the gas and air flow at a certain speed, uneven mixing is likely to occur, which can lead to a decrease in combustion efficiency when the flame is ejected. Summary of the Invention

[0004] This utility model provides a burner air supply device, which features an air-gathering and mixing baffle that extends the air residence time near the burner air duct, promoting thorough mixing with the gas. This allows the gas and air to be pre-mixed in a sealed cavity before being sent into the combustion zone, reducing the likelihood of uneven mixing and improving combustion efficiency.

[0005] This utility model provides the following technical solution: a burner air supply device, including an air supply body, a flame channel and a flow channel are provided on the air supply body, and an air induced assembly for controlling the air is provided in the flow channel. The air induced assembly includes an adjusting rod, an air-concentrating mixing baffle and a sealing sleeve. The air-concentrating mixing baffle is located in the flow channel and passes through the burner air duct. The gas channel is opposite to the bottom end face of the air-concentrating mixing baffle. The adjusting rod is located outside the flow channel to control the position of the air-concentrating mixing baffle. The air-concentrating mixing baffle is close to the burner air duct to prolong the air residence time.

[0006] The wind-gathering mixing baffle is fixedly connected to a connecting column on its outer side, and the connecting column is fixedly connected to the adjusting rod.

[0007] One end of the connecting post passes through the flow channel, and the other end of the connecting post is located inside the sealing sleeve.

[0008] The sealing sleeve is fixedly connected to the flow channel, and the sealing sleeve is provided with a sealing layer for sealing.

[0009] The adjusting rod is slidably connected inside the sealing sleeve, and the adjusting rod has several adjusting mark grooves. A fixed insert plate corresponding to the adjusting mark grooves is slidably connected inside the sealing sleeve.

[0010] An operating elastic rod is slidably connected inside the sealing sleeve, and the operating elastic rod connects the fixing insert plate to the adjusting mark groove.

[0011] The outer wall of the operating elastic rod is fitted with an elastic element, which is located inside the sealing sleeve to restrict the position of the fixed insert plate.

[0012] The beneficial effects of this utility model are:

[0013] The air intake assembly includes an adjusting rod, an air-concentrating mixing baffle, and a sealing sleeve. When air is supplied through the air supply unit, it can circulate within the flow channel. Depending on the burner's usage, the adjusting rod can be operated to align the required adjustment mark slot with the fixed insert plate, causing the connecting column to move the air-concentrating mixing baffle to adjust its position within the flow channel. By controlling the position of the air-concentrating mixing baffle, it moves closer to the burner's air duct to extend the air residence time, promoting thorough mixing with the combustion gas. This pre-mixing of the combustion gas and air within the sealed cavity before being sent to the combustion zone reduces the likelihood of uneven mixing and improves combustion efficiency.

[0014] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

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

[0016] Figure 2 is a schematic diagram of the internal structure of the flow channel in this utility model;

[0017] Figure 3 is a schematic diagram of the structure of the air-expelling component in this utility model;

[0018] Figure 4 is a schematic diagram of the sealing sleeve in this utility model;

[0019] In the diagram: 1. Air supply unit; 11. Flame channel; 12. Circulation channel; 2. Air intake assembly; 21. Adjusting rod; 211. Adjusting mark groove; 22. Air gathering and mixing baffle; 23. Connecting column; 24. Sealing sleeve; 25. Sealing layer; 26. Operating elastic rod; 27. Fixing plate. Detailed Implementation

[0020] Please refer to Figures 1-4. This utility model provides the following technical solution: It includes a blower body 1, on which a flame channel 11 and a circulation channel 12 are provided. The circulation channel 12 is provided with an air-guiding assembly 2 for controlling the airflow. The air-guiding assembly 2 includes an adjusting rod 21, an air-concentrating mixing baffle 22 and a sealing sleeve 24. The air-concentrating mixing baffle 22 is located in the circulation channel 12 and passes through the burner air duct. The gas passage is opposite to the bottom end face of the air-concentrating mixing baffle 22. The adjusting rod 21 is located outside the circulation channel 12 to control the position of the air-concentrating mixing baffle 22. The air-concentrating mixing baffle 22 is close to the burner air duct to prolong the air residence time.

[0021] In this implementation scheme: the air supply unit 1 is provided with a flame channel 11 and a circulation channel 12. When turned on, gas and air can circulate within the circulation channel 12. The flame is emitted through the flame channel 11. The induced draft assembly 2 includes an adjusting rod 21, a concentrating and mixing baffle 22, and a sealing sleeve 24. The concentrating and mixing baffle 22 is located within the circulation channel 12 and passes through the burner air duct. The gas channel is opposite to the bottom end face of the concentrating and mixing baffle 22. The use of the gas channel is existing technology. Using it opposite to the concentrating and mixing baffle 22 facilitates the mixing of fuel and air. When air is supplied through the air supply unit 1, it can circulate within the circulation channel 12. Depending on the burner usage, the adjusting rod 21 can be operated to align the adjustment mark slot 211 of the required setting with the fixed insert plate 27. When in use, plate 27 can be pulled to operate elastic rod 26, which drives fixed insert plate 27 to move and provides a limiting force under the action of elastic element. When the operating elastic rod 26 is released, fixed insert plate 27 can be inserted into the corresponding adjustment mark groove 211, so that connecting column 23 drives air-concentrating mixing baffle 22 to adjust its position in flow channel 12. According to the position of controlling air-concentrating mixing baffle 22, air-concentrating mixing baffle 22 moves closer to the burner air duct to prolong the air residence time, that is, air-concentrating mixing baffle 22 moves downward, making the flow space narrower. Conversely, air-concentrating mixing baffle 22 moves upward, making the flow space larger. This can promote the full mixing of air and gas, so that gas and air are pre-mixed in the sealed cavity before being sent into the combustion zone. It is not easy for uneven mixing to occur, thus improving combustion efficiency.

[0022] A connecting column 23 is fixedly connected to the outside of the air-gathering mixing baffle 22. The connecting column 23 is fixedly connected to the adjusting rod 21. One end of the connecting column 23 passes through the flow channel 12, and the other end of the connecting column 23 is located inside the sealing sleeve 24. The fixing plate 27 is inserted into the adjusting mark groove 211 at the corresponding position, so that the connecting column 23 drives the air-gathering mixing baffle 22 to adjust its position in the flow channel 12.

[0023] The sealing sleeve 24 is fixedly connected to the flow channel 12, and the sealing sleeve 24 is provided with a sealing layer 25 for sealing. With the setting of the adjusting rod 21, the sealing performance of the connection part can be enhanced by the sealing sleeve 24, so that the adjusting rod 21 can be used stably.

[0024] The adjusting rod 21 is slidably connected inside the sealing sleeve 24. The adjusting rod 21 has several adjusting mark slots 211. A fixed insert plate 27 corresponding to the adjusting mark slots 211 is slidably connected inside the sealing sleeve 24. An operating elastic rod 26 is slidably connected inside the sealing sleeve 24. The operating elastic rod 26 connects to the fixed insert plate 27 and engages with the adjusting mark slot 211. Depending on the burner usage, the adjusting rod 21 can be operated to align the required setting of the adjusting mark slot 211 with the fixed insert plate 27, thus controlling the position of the air-concentrating mixing baffle 22.

[0025] An elastic element is sleeved on the outer wall of the operating elastic rod 26. The elastic element is located inside the sealing sleeve 24 and restricts the position of the fixed insert plate 27. The elastic element can be a spring. Under the action of the elastic element, it provides a force to restrict the fixed insert plate 27. When the operating elastic rod 26 is released, the fixed insert plate 27 can be inserted into the adjustment mark groove 211 at the corresponding position.

[0026] The working principle and usage process of this utility model are as follows: When turned on, gas and air can flow in the circulation channel 12. The flame is emitted through the flame channel 11. The air-concentrating mixing baffle 22 is located in the circulation channel 12. The air-concentrating mixing baffle 22 passes through the burner air duct. The bottom end face of the gas channel and the air-concentrating mixing baffle 22 are opposite. When air is supplied through the air supply unit 1, it can flow in the circulation channel 12. Depending on the use of the burner, it can be operated on the adjusting rod 21. The adjusting mark slot 211 of the required setting can be aligned with the fixed insert plate 27. When the fixed insert plate 27 is in use, the operating elastic rod 26 can be pulled. The operating elastic rod 26 drives the fixed insert plate 27 to move, and the elastic element... Under the action of the limiting force, when the operating elastic rod 26 is released, the fixed insert plate 27 can be inserted into the corresponding adjustment mark groove 211, so that the connecting column 23 drives the air-concentrating mixing baffle 22 to adjust its position in the flow channel 12. According to the position of the air-concentrating mixing baffle 22, the air-concentrating mixing baffle 22 moves closer to the burner air duct to extend the air residence time, that is, the air-concentrating mixing baffle 22 moves downward, making the flow space narrower. Conversely, the air-concentrating mixing baffle 22 moves upward, making the flow space larger. This can promote the full mixing of air and gas, so that the gas and air are pre-mixed in the sealed cavity before being sent into the combustion zone. It is not easy for uneven mixing to occur, thus improving combustion efficiency.

Claims

1. A burner air supply device, comprising an air supply body (1), wherein the air supply body (1) is provided with a flame channel (11) and a flow channel (12), characterized in that: The circulation channel (12) is provided with an air-guiding assembly (2) for controlling the airflow. The air-guiding assembly (2) includes an adjusting rod (21), an air-concentrating mixing baffle (22), and a sealing sleeve (24). The air-concentrating mixing baffle (22) is located in the circulation channel (12). The air-concentrating mixing baffle (22) passes through the burner air duct. The gas passage is opposite to the bottom end face of the air-concentrating mixing baffle (22). The adjusting rod (21) is located outside the circulation channel (12) to control the position of the air-concentrating mixing baffle (22). The air-concentrating mixing baffle (22) is close to the burner air duct to prolong the air residence time.

2. The burner air supply device according to claim 1, characterized in that: A connecting column (23) is fixedly connected to the outside of the wind-gathering mixing baffle (22), and the connecting column (23) is fixedly connected to the adjusting rod (21).

3. A burner air supply device according to claim 2, characterised in that: One end of the connecting post (23) passes through the flow channel (12), and the other end of the connecting post (23) is located inside the sealing sleeve (24).

4. The burner air supply device according to claim 1, characterized in that: The sealing sleeve (24) is fixedly connected to the flow channel (12), and the sealing sleeve (24) is provided with a sealing layer (25) for sealing.

5. The burner air supply device according to claim 1, characterized in that: The adjusting rod (21) is slidably connected inside the sealing sleeve (24). The adjusting rod (21) has a plurality of adjusting mark grooves (211). The sealing sleeve (24) has a fixed insert plate (27) corresponding to the adjusting mark grooves (211) slidably connected inside.

6. A burner air supply device according to claim 5, characterized in that: An operating elastic rod (26) is slidably connected inside the sealing sleeve (24), and the operating elastic rod (26) is connected to the fixing insert (27) and inserted into the adjustment mark groove (211).

7. A burner air supply device according to claim 6, characterised in that: The outer wall of the operating elastic rod (26) is fitted with an elastic element, which is located inside the sealing sleeve (24) to restrict the position of the fixed insert plate (27).

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