A high-temperature resistant water-cooled wall structure

Abstract

This utility model belongs to the field of heat exchange equipment, and particularly relates to a high-temperature resistant water-cooled wall structure, including a heat insulation layer, a pump body, a channel pipe, and a water-cooled pipe. The pump body is installed on the lower side of the heat insulation layer, with its inlet end extending forward. The channel pipe is fixed to the outlet end of the pump body extending downward. The water-cooled pipe is installed inside the heat insulation layer, and the channel pipe is connected to the cross-shaped pipe at the bottom of the water-cooled pipe to form a flow path for the cooling medium. By setting an electric push rod and a cleaning brush, ash and particulate impurities adhering to the outer wall of the water-cooled pipe can be automatically removed, avoiding a decrease in heat exchange efficiency due to ash accumulation, ensuring that high-temperature gas can fully contact the surface of the water-cooled pipe, significantly improving the heat exchange effect, and extending the service life of the equipment.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchange equipment, and in particular relates to a high-temperature resistant water-cooled wall structure. Background Technology

[0002] Water-cooled wall structures are key thermal protection and heat exchange components in thermal equipment such as boilers, incinerators, and high-temperature reactors. They consist of multiple water-cooled pipes, which are filled with cooling media. Through the circulation of the media, the high-temperature heat in the furnace is carried away, thus playing a dual role in cooling the furnace wall, protecting the structural safety, and recovering heat.

[0003] However, during the long-term operation of the boiler, ash, slag and various particulate impurities easily adhere to the outer wall of the water-cooled tubes. These impurities gradually accumulate on the surface of the outer tube wall over time, forming a heat insulation layer with poor thermal conductivity. This hinders the full heat exchange between the high-temperature flue gas and the water-cooled tubes, resulting in a significant decrease in heat exchange efficiency. This not only reduces the boiler's thermal energy utilization efficiency but may also cause problems such as local overheating, thereby affecting the overall operating efficiency and safety of the boiler.

[0004] Therefore, a high-temperature resistant water-cooled wall structure is particularly needed to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of water-cooled pipes, such as the easy accumulation of impurities on the outer wall to form a heat insulation layer, which leads to a decrease in heat exchange efficiency and affects the boiler's thermal efficiency and operational safety, this utility model provides a high-temperature resistant water-cooled wall structure.

[0006] This utility model is achieved through the following technical means: a high-temperature resistant water-cooled wall structure, including a heat insulation layer, a pump body, a channel pipe, and a water-cooling pipe. The pump body is installed on the lower side of the heat insulation layer, with its inlet end extending forward. The channel pipe is fixed to the outlet end of the pump body extending downward. The water-cooling pipe is installed inside the heat insulation layer. The channel pipe is connected to the cross pipe at the lower part of the water-cooling pipe to form a flow path for the cooling medium. It also includes a housing, an electric push rod, and a cleaning brush. Multiple L-shaped housings distributed along a rectangular direction are installed inside the heat insulation layer. The housings are located above the water-cooling pipes. An electric push rod is installed inside each housing. A cleaning brush is installed on the telescopic end of each electric push rod. The running path of the bristles of the cleaning brush intersects with the location of the water-cooling pipe.

[0007] To further explain, it also includes an air pump, connecting pipes, and frames. The air pump is installed on one side of the lower part of the insulation layer, and a frame is installed on each of the four sides of the lower part of the insulation layer. The side of the frame near the water cooling pipe passes through the insulation layer and is vertically aligned with the inner wall of the insulation layer. The air pump's suction end is connected to one of the frames, and multiple connecting pipes are fixedly connected between the multiple frames.

[0008] To further explain, it also includes two electric push rods and a lifting frame. The two electric push rods are installed side by side at the bottom of the insulation layer. A lifting frame is installed between the telescopic ends of the two electric push rods. The bottom of the lifting frame is lower than the insulation layer. The lifting frame is at the same height as the frame body and blocks multiple openings of the frame body at the same time.

[0009] To further explain, it also includes a connecting plate, with one connecting plate fixed to each cleaning brush. The connecting plate slides into the corresponding housing and closes the lower opening of the housing.

[0010] To further explain, it also includes a filter screen, with one filter screen fixed inside each frame.

[0011] To further explain, a sealing gasket is provided on the surface of the lifting frame that contacts the frame body.

[0012] Beneficial effects: 1. By setting an electric push rod and a cleaning brush, the ash and particulate impurities attached to the outer wall of the water-cooled pipe can be automatically removed, avoiding the decrease in heat exchange efficiency caused by ash accumulation, ensuring that high-temperature gas can fully contact the surface of the water-cooled pipe, significantly improving the heat exchange effect and extending the service life of the equipment.

[0013] 2. The dust collection system, consisting of an air pump, connecting pipes, and frame, can quickly suck up and centrally process ash and particulate impurities that fall into the lower part of the insulation layer, preventing the accumulation of ash and particulate impurities that require manual cleaning.

[0014] 3. By setting up an electric push rod and a lifting frame, the lifting frame can automatically close the openings of the four frames when vacuuming is not required, preventing external dust from entering. When cleaning is required, the lifting frame will automatically descend and open the frame openings to facilitate the intake of ash, slag and particulate impurities, and prevent high-temperature flue gas from entering the frame during heat exchange. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a partial cross-sectional view of the heat insulation layer component of this utility model.

[0017] Figure 3 This is a partial cross-sectional view of the heat insulation layer and shell components of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the electric push rod, cleaning brush, and connecting plate components of this utility model.

[0019] Figure 5 This is a partial cross-sectional view of the heat insulation layer and frame components of this utility model.

[0020] The markings in the attached diagram are: 1. Insulation layer, 2. Pump body, 3. Channel pipe, 4. Water cooling pipe, 5. Shell, 6. Electric push rod one, 7. Cleaning brush, 8. Connecting plate, 9. Air pump, 10. Connecting pipe, 11. Frame, 12. Filter screen, 13. Electric push rod two, 14. Lifting frame. Detailed Implementation

[0021] Example: A high-temperature resistant water-cooled wall structure, such as Figures 1-5 As shown, the system includes a heat insulation layer 1, a pump body 2, a channel pipe 3, and a water-cooling pipe 4. The pump body 2 is bolted to the lower left side of the heat insulation layer 1, with its inlet end extending forward. The channel pipe 3 is fixedly connected to the outlet end of the pump body 2 extending downward. The water-cooling pipe 4 is bolted inside the heat insulation layer 1, and the channel pipe 3 is connected to the cross-shaped pipe at the lower part of the water-cooling pipe 4 to form a flow path for the cooling medium. The system also includes a housing 5, an electric push rod 6, a cleaning brush 7, and a connecting plate 8. Four L-shaped housings distributed along a rectangular direction are bolted inside the heat insulation layer 1. 5. The housing 5 is located above the water cooling pipe 4. Each housing 5 is bolted with an electric push rod 6. Each electric push rod 6 is bolted with a cleaning brush 7 at its telescopic end. The running path of the bristles of the cleaning brush 7 intersects with the position of the water cooling pipe 4, ensuring that the bristles of the cleaning brush 7 can contact the outer wall of the water cooling pipe 4 when it moves. Each cleaning brush 7 is fixedly connected with a connecting plate 8. The connecting plate 8 slides with the corresponding housing 5 and seals the lower opening of the housing 5 to prevent ash and particulate impurities from entering.

[0022] like Figure 1 and Figure 5 As shown, it also includes an air pump 9, connecting pipes 10, frames 11, and filters 12. The air pump 9 is bolted to the lower left side of the insulation layer 1. A frame 11 is bolted to each of the four sides of the lower part of the insulation layer 1. The side of the frame 11 closest to the water cooling pipe 4 passes through the insulation layer 1 and is vertically aligned with the inner wall of the insulation layer 1. The air pump 9's suction end is connected to the left frame 11. Four connecting pipes 10 are fixedly connected to the four frames 11 to achieve interconnection between the four frames 11. When the air pump 9 is working, it can create a negative pressure inside the four frames 11 to suck in ash and particulate impurities. The particulate impurities collected inside the frames can be cleaned by disassembling the frames 11. A filter 12 is fixedly connected inside each frame 11 to filter the ash and particulate impurities sucked into the frame 11 and prevent them from entering the air pump 9 and causing damage.

[0023] like Figure 1 and Figure 5As shown, it also includes an electric push rod 13 and a lifting frame 14. The two electric push rods 13 are arranged side by side and bolted to the lower part of the heat insulation layer 1. The lifting frame 14 is bolted between the telescopic ends of the two electric push rods 13. The bottom surface of the lifting frame 14 is lower than the heat insulation layer 1. The lifting frame 14 is at the same height as the frame 11 and blocks the openings of the four frames 11. A sealing gasket is provided on the surface of the lifting frame 14 that contacts the frame 11.

[0024] When a water-cooled wall structure is required, the operator first connects the external water pipe to the water inlet of the pump body 2. After the pump body 2 is started, it draws in the cooling medium from the water inlet and delivers the cooling medium through the channel pipe 3 to the inside of the water-cooled pipe 4 through the water outlet. After a suitable amount of cooling medium is delivered into the water-cooled pipe 4, the pump body 2 is turned off.

[0025] When the boiler is running, the high-temperature flue gas enters the insulation layer 1. The cooling medium in the water-cooled pipe 4 absorbs heat and completes the heat exchange process. After the heat exchange is completed, the pump body 2 is restarted, and its outlet end is controlled to draw away the cooling medium in the water-cooled pipe 4 through the channel pipe 3 and discharge it from the inlet end. Then the pump body 2 is turned off again, and the above steps are repeated to continue the heat exchange operation.

[0026] When it is necessary to clean the outer wall of the water cooling pipe 4, first start the electric push rod 13, control its extension end to extend, and drive the lifting frame 14 to move downward until the lifting frame 14 is separated from the opening of the frame 11, providing space for subsequent vacuuming operations. Then start the electric push rod 6, control its extension end to drive the cleaning brush 7 to make reciprocating linear motion. Since the running path of the bristles of the cleaning brush 7 intersects with the position of the water cooling pipe 4, the bristles of the cleaning brush 7 will closely contact the outer wall of the water cooling pipe 4 during the movement, removing the dust and particulate impurities attached to it.

[0027] During the cleaning process, the air pump 9 is started and air is drawn through the air extraction end of the left frame 11. Since the four frames 11 are connected to each other through the connecting pipe 10, a negative pressure environment is quickly formed inside the entire vacuuming system. The dust and particulate impurities brushed off by the cleaning brush 7 are drawn into the frame 11 from the lower part of the heat insulation layer 1 under the action of negative pressure. The dust and particulate impurities that enter the frame 11 are filtered and intercepted by the filter screen 12 to prevent them from entering the air pump 9, thereby effectively protecting the normal operation of the air pump 9.

[0028] After cleaning is completed, the telescopic end of the electric push rod 16 is retracted, which drives the cleaning brush 7 to reset. Then, the electric push rod 16 and the air pump 9 are turned off. Finally, the telescopic end of the electric push rod 213 is retracted, which drives the lifting frame 14 to rise, so that the lifting frame 14 covers the openings of the four frames 11 again, thus completing the entire cleaning process.

Claims

1. A high-temperature resistant water-cooled wall structure, characterized in that, It includes a heat insulation layer (1), a pump body (2), a channel pipe (3) and a water cooling pipe (4). The pump body (2) is installed on the lower side of the heat insulation layer (1) with its inlet end extending forward. The channel pipe (3) is fixed to the outlet end of the pump body (2) extending downward. The water cooling pipe (4) is installed inside the heat insulation layer (1). The channel pipe (3) is connected to the cross pipe at the lower part of the water cooling pipe (4) to form a flow path for the cooling medium. It also includes a housing (5), an electric push rod (6) and a cleaning brush (7). Multiple L-shaped housings (5) are installed inside the heat insulation layer (1) along a rectangular direction. The housings (5) are located above the water cooling pipe (4). Each housing (5) has an electric push rod (6) installed inside. Each electric push rod (6) has a cleaning brush (7) installed on its telescopic end. The running path of the bristles of the cleaning brush (7) intersects with the location of the water cooling pipe (4).

2. The high-temperature resistant water-cooled wall structure according to claim 1, characterized in that, It also includes an air pump (9), a connecting pipe (10) and a frame (11). The air pump (9) is installed on the lower side of the insulation layer (1). A frame (11) is installed on each of the four sides of the lower part of the insulation layer (1). The side of the frame (11) near the water cooling pipe (4) passes through the insulation layer (1) and is vertically aligned with the inner wall of the insulation layer (1). The air pump (9) is connected to one of the frames (11). Multiple connecting pipes (10) are fixedly connected between the multiple frames (11).

3. The high-temperature resistant water-cooled wall structure according to claim 2, characterized in that, It also includes two electric push rods (13) and a lifting frame (14). The two electric push rods (13) are installed side by side at the bottom of the insulation layer (1). The lifting frame (14) is installed between the telescopic ends of the two electric push rods (13). The bottom of the lifting frame (14) is lower than the insulation layer (1). The lifting frame (14) is at the same height as the frame (11) and blocks the openings of multiple frames (11) at the same time.

4. The high-temperature resistant water-cooled wall structure according to claim 3, characterized in that, It also includes a connecting plate (8), with a connecting plate (8) fixed to each cleaning brush (7). The connecting plate (8) slides with the corresponding housing (5) and closes the lower opening of the housing (5).

5. The high-temperature resistant water-cooled wall structure according to claim 4, characterized in that, It also includes a filter (12), with a filter (12) fixed inside each frame (11).

6. The high-temperature resistant water-cooled wall structure according to claim 4, characterized in that, A sealing gasket is provided on the surface of the lifting frame (14) that contacts the frame (11).

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