Cooling device for boiler burner of thermal power plant

Abstract

The utility model discloses a boiler burner cooling device of a thermal power plant, and relates to the technical field of boiler burner cooling. The upper surface of the base is fixedly connected with a burner body and a water tank, the water tank is located on one side of the burner body, one side of the burner body is fixedly connected with a heat dissipation shell, a circulating cooling assembly and an atomization cooling mechanism are jointly arranged between the heat dissipation shell and the water tank, and the atomization cooling mechanism comprises a water suction pump; according to the cooling device, through the atomization cooling mechanism, atomization spray is arranged in a cooling box, water mist is conveyed into a heat dissipation shell through a draught fan, the contact area of the water mist and a smoke pipe is increased, and therefore the cooling effect of the cooling device is improved; and the circulating pipe spirally coiled on the outer wall of the flue gas pipe is matched with the atomization cooling mechanism for use, so that the heat exchange efficiency is remarkably improved, the cooling effect is optimal, and the requirement of efficient cooling is met.

Description

Technical Field

[0001] This utility model relates to the field of boiler burner cooling technology, specifically a boiler burner cooling device for thermal power plants. Background Technology

[0002] The boiler burner is a crucial component of the boiler system, responsible for burning fuel and generating heat. Due to the high temperature and pressure generated during combustion, the burner's flue gas pipes bear an enormous heat load, making cooling essential. The installation of a cooling system is a vital aspect of ensuring the safe and efficient operation of the boiler burner.

[0003] However, existing boiler burner cooling devices in thermal power plants still have some problems in use:

[0004] First, most existing cooling devices use air cooling, which has limited cooling effect and cannot efficiently transfer and distribute heat, thus reducing the cooling efficiency of the device.

[0005] Secondly, existing cooling devices do not have a dual cooling structure; they rely on only one cooling structure, which cannot achieve optimal cooling performance and fails to meet the requirements for high-efficiency cooling. Utility Model Content

[0006] In order to solve the problems of poor cooling effect and simple cooling structure of existing cooling devices, the purpose of this utility model is to provide a cooling device for boiler burners in thermal power plants.

[0007] To solve the above technical problems, the present invention adopts the following technical solution: a boiler burner cooling device for a thermal power plant, including a base, a burner body and a water tank are fixedly connected to the upper surface of the base, the water tank is located on one side of the burner body, a heat dissipation shell is fixedly connected to one side of the burner body, and a circulating cooling component and an atomizing cooling mechanism are provided between the heat dissipation shell and the water tank.

[0008] The atomizing cooling mechanism includes a water pump, which is fixedly installed on the upper surface of the base. A first water pipe and a second water pipe are fixedly connected to both sides of the water pump, respectively. The first water pipe is connected to a water tank. A cooling box is fixedly installed on the upper surface of the base. A fan is fixedly installed on the upper surface of the base. The output end of the fan is fixedly connected to a second air duct, which is connected to the cooling box. An atomizing spray nozzle is fixedly installed inside the cooling box. The end of the second water pipe passes through the cooling box and is connected to the upper surface of the atomizing spray nozzle via a first air duct, which is connected to a heat dissipation shell.

[0009] In one possible implementation, the circulating cooling assembly includes a circulating water pump, which is fixedly installed on the upper surface of the water tank. A third water pipe and a connecting pipe are fixedly connected to both sides of the circulating water pump, respectively. The third water pipe is connected to the water tank. A first flange is fixedly connected to the upper surface of the connecting pipe, and a second flange is fixedly connected to the upper surface of the first flange. A circulating pipe is fixedly connected to the upper surface of the second flange. The circulating pipe is coiled on the outer wall of the flue pipe inside the heat dissipation shell 6, and the outlet end of the circulating pipe is connected to the water tank.

[0010] In one possible implementation, an air outlet is provided on one side of the heat dissipation shell for use with the first air duct and the second air duct.

[0011] In one possible implementation, the atomizing spray nozzle is located at the air outlet where the cooling box connects to the first air duct, and the nozzle of the atomizing spray nozzle faces the direction of the first air duct.

[0012] In one possible implementation, the heat sink is a copper shell.

[0013] In one possible implementation, the circulation tube is arranged in a spiral shape.

[0014] In one possible implementation, the first flange and the second flange are fixedly connected by bolts.

[0015] In one possible implementation, both the first flange and the second flange are sealing discs.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This application uses an atomizing cooling mechanism, which sets up an atomizing spray in the cooling box and sends the water mist to the heat dissipation shell by a fan, thereby increasing the contact area between the water mist and the flue gas pipe and improving the cooling effect of the cooling device.

[0018] 2. This application uses a circulating cooling component, in which a spiral-shaped circulating pipe is placed on the outer wall of the flue gas pipe and used in conjunction with an atomizing cooling mechanism, to significantly improve heat exchange efficiency, achieve optimal cooling effect, and meet the requirements of high-efficiency cooling. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a cross-sectional structural diagram of the atomizing cooling mechanism of this utility model.

[0022] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0023] Figure 4 This is a schematic diagram of the atomizing cooling mechanism of this utility model from another perspective.

[0024] Figure 5 This is a schematic diagram of the circulating cooling component of this utility model.

[0025] Figure 6 This utility model Figure 5 Enlarged schematic diagram of the structure at point B.

[0026] In the diagram: 1. Base; 2. Atomizing cooling mechanism; 21. Second water pipe; 22. Water pump; 23. First air duct; 24. Fan; 25. Second air duct; 26. Atomizing exhaust; 27. Cooling box; 28. First water pipe; 29. ​​Air outlet; 3. Circulating cooling assembly; 31. Circulating pipe; 32. Third water pipe; 33. Circulating water pump; 34. Connecting pipe; 35. First flange; 36. Second flange; 4. Burner body; 5. Water tank; 6. Heat dissipation shell. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. 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 skilled in the art without creative effort are within the scope of protection of the present utility model.

[0028] Example: Figure 1-6As shown, this utility model provides a boiler burner cooling device for a thermal power plant, including a base 1. A burner body 4 and a water tank 5 are fixedly connected to the upper surface of the base 1. The water tank 5 provides the water resources required for the cooling process. At the same time, the water tank 5 is equipped with a water inlet pipe for water replenishment. The water tank 5 is located on one side of the burner body 4. A heat dissipation shell 6 is fixedly connected to one side of the burner body 4. The heat dissipation shell 6 is a copper shell. Copper has good thermal conductivity and can quickly conduct the heat generated by the burner body 4, improving the heat transfer efficiency. A circulating cooling component 3 and an atomizing cooling mechanism 2 are provided together between the heat dissipation shell 6 and the water tank 5. The circulating cooling component 3 and the atomizing cooling mechanism 2 work together to achieve efficient heat dissipation of the burner body 4.

[0029] The atomizing cooling mechanism 2 includes a water pump 22, which is fixedly installed on the upper surface of the base 1. The water pump 22 provides stable power to extract water from the water tank 5 and deliver it to subsequent components, ensuring the continuous operation of the atomizing cooling process. A first water pipe 28 and a second water pipe 21 are fixedly connected to both sides of the water pump 22. The first water pipe 28 is connected to the water tank 5 to ensure smooth water extraction. A cooling box 27 is fixedly installed on the upper surface of the base 1, providing an installation position and channel for the atomizing spray nozzle 26. A fan 24 is fixedly installed on the upper surface of the base 1, and a second air duct 25 is fixedly connected to the output end of the fan 24. The second air duct 25 is connected to the cooling box 27. The high-speed airflow generated by the fan 24 enters the cooling box 27 through the second air duct 25, accelerating airflow and enhancing heat exchange. The atomizing spray nozzle 26 is fixedly installed inside the cooling box 27. The atomization technology involved in 26 is relatively mature. The end of the second water pipe 21 passes through the cooling box 27 and is connected to the atomizing spray nozzle 26. The atomizing spray nozzle 26 can convert water into tiny water droplets, i.e., atomized state, which greatly increases the contact area between water and air. The upper surface of the cooling box 27 is connected to the first air duct 23, and the first air duct 23 is connected to the heat dissipation shell 6, so that the cooled water vapor can smoothly enter the heat dissipation shell 6. The atomizing spray nozzle 26 is located at the air outlet position where the cooling box 27 and the first air duct 23 are connected. The nozzle of the atomizing spray nozzle 26 faces the first air duct 23, which can make the atomized water vapor enter the heat dissipation shell 6 more efficiently under the action of the airflow generated by the fan 24, and give full play to the cooling effect. One side of the heat dissipation shell 6 is provided with an air outlet 29 for use with the first air duct 23 and the second air duct 25. The setting of the air outlet 29 ensures that the air after heat exchange can be smoothly discharged, improving the cooling efficiency.

[0030] The circulating cooling assembly 3 includes a circulating water pump 33, which is fixedly installed on the upper surface of the water tank 5. The circulating water pump 33 provides power for circulating cooling. A third water pipe 32 and a connecting pipe 34 are fixedly connected to both sides of the circulating water pump 33, respectively. The third water pipe 32 is connected to the water tank 5 to ensure the integrity of the water circulation loop. A first flange 35 is fixedly connected to the upper surface of the connecting pipe 34, and a second flange 36 is fixedly connected to the upper surface of the first flange 35. In one possible embodiment, the first flange 35 and the second flange 36 are fixedly connected by bolts. This connection method facilitates the installation and disassembly of the circulating pipe 31, and facilitates the maintenance and repair of the equipment. In one possible embodiment, both the first flange 35 and the second flange 36 are sealing discs. To further ensure the sealing of the connection, a circulation pipe 31 is fixedly connected to the upper surface of the second flange 36. The circulation pipe 31 is coiled on the outer wall of the flue gas pipe inside the heat dissipation shell 6. The circulation pipe 31 is coiled in a spiral shape. The spiral design increases the contact area and contact time between the circulation pipe 31 and the flue gas pipe, which can more fully absorb the heat of the flue gas pipe and improve the cooling efficiency. The water outlet end of the circulation pipe 31 is connected to the water tank 5, so that the water that has absorbed heat can return to the water tank 5 for heat dissipation and cooling, realizing recycling, saving water resources, and ensuring a continuous and stable cooling effect.

[0031] Working principle: First, when the burner body 4 generates heat, the water pump 22 is started through the atomizing cooling mechanism 2, and water is drawn out of the water tank 5 through the first water pipe 28. The water is then transported to the atomizing spray nozzle 26 in the cooling box 27 through the second water pipe 21.

[0032] At the same time, the fan 24 operates, and the airflow generated enters the cooling box 27 through the second air duct 25, causing the water sprayed by the atomizing nozzle 26 to form tiny water droplets, i.e., atomized state, which increases the contact area between water and air, thereby achieving rapid cooling.

[0033] The atomized water vapor mixture enters the heat dissipation shell 6 through the first air duct 23, and the low-temperature water vapor further carries away the heat, and is finally discharged through the air outlet 29.

[0034] At the same time, the circulating cooling component 3 also operates synchronously, the circulating water pump 33 starts, draws water from the water tank 5, and enters the circulating pipe 31, which is spirally arranged on the outer wall of the flue pipe inside the heat dissipation shell 6, through the third water pipe 32, the connecting pipe 34, the first flange 35 and the second flange 36.

[0035] After the water in the circulation pipe 31 absorbs the heat from the flue gas pipe, its temperature rises. Then, it returns to the water tank 5 through the outlet pipe connected to the water tank 5. After being cooled in the water tank 5, it can be drawn again by the circulating water pump 33 for the next round of cooling cycle. Through the dual cooling effect of the atomizing cooling mechanism 2 and the circulating cooling component 3, the burner body 4 can be cooled efficiently.

[0036] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A boiler burner cooling device for a thermal power plant, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to the burner body (4) and the water tank (5). The water tank (5) is located on one side of the burner body (4). A heat dissipation shell (6) is fixedly connected to one side of the burner body (4). A circulating cooling assembly (3) and an atomizing cooling mechanism (2) are provided between the heat dissipation shell (6) and the water tank (5). The atomizing cooling mechanism (2) includes a water pump (22), which is fixedly installed on the upper surface of the base (1). A first water pipe (28) and a second water pipe (21) are fixedly connected to both sides of the water pump (22). The first water pipe (28) is connected to the water tank (5). A cooling box (27) is fixedly installed on the upper surface of the base (1). A fan (24) is fixedly installed on the upper surface of the base (1). A second air pipe (25) is fixedly connected to the output end of the fan (24), and the second air pipe (25) is connected to the cooling box (27). An atomizing spray nozzle (26) is fixedly installed inside the cooling box (27). The end of the second water pipe (21) passes through the cooling box (27) and is connected to the atomizing spray nozzle (26). A first air pipe (23) is connected to the upper surface of the cooling box (27), and the first air pipe (23) is connected to the heat dissipation shell (6).

2. The boiler burner cooling device for a thermal power plant as described in claim 1, characterized in that: The circulating cooling assembly (3) includes a circulating water pump (33), which is fixedly installed on the upper surface of the water tank (5). A third water pipe (32) and a connecting pipe (34) are fixedly connected to both sides of the circulating water pump (33). The third water pipe (32) is connected to the water tank (5). A first flange (35) is fixedly connected to the upper surface of the connecting pipe (34), and a second flange (36) is fixedly connected to the upper surface of the first flange (35). A circulating pipe (31) is fixedly connected to the upper surface of the second flange (36). The circulating pipe (31) is coiled on the outer wall of the flue gas pipe inside the heat dissipation shell (6). The outlet end of the circulating pipe (31) is connected to the water tank (5).

3. The boiler burner cooling device for a thermal power plant as described in claim 1, characterized in that: The heat dissipation shell (6) has an air outlet (29) on one side for use with the first air duct (23) and the second air duct (25).

4. The boiler burner cooling device for a thermal power plant as described in claim 1, characterized in that: The atomizing spray nozzle (26) is located at the air outlet where the cooling box (27) and the first air duct (23) are connected, and the nozzle of the atomizing spray nozzle (26) faces the first air duct (23).

5. A boiler burner cooling device for a thermal power plant as described in claim 1, characterized in that: The heat sink (6) is a copper shell.

6. A boiler burner cooling device for a thermal power plant as described in claim 2, characterized in that: The circulation pipe (31) is spirally coiled.

7. A boiler burner cooling device for a thermal power plant as described in claim 2, characterized in that: The first flange (35) and the second flange (36) are fixedly connected by bolts.

8. A boiler burner cooling device for a thermal power plant as described in claim 7, characterized in that: Both the first flange (35) and the second flange (36) are sealing discs.

Images