Heat exchanger convenient to clean regularly for heat energy power device

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a heat exchanger convenient to clean regularly for a heat energy power device, which comprises a barrel tank and two covers, the two covers are arranged at two ends of the barrel tank, partition plates are fixed in two sides of the barrel tank, a plurality of copper pipes are transversely and uniformly connected between the partition plates on two sides in the barrel tank, and the copper pipes are arranged in the barrel tank. An electric push rod is transversely installed in the middle of the outer surface of the cover, the extending end of the electric push rod penetrates into the cover, and a hollow frame is vertically fixed to the tail end of the electric push rod. According to the technical scheme, the hollow frames capable of being pushed leftwards and rightwards are arranged in the covers on the two sides, the flushing pipes aligned with the copper pipe are evenly arranged on the surfaces of the hollow frames, fluid can be stopped from being introduced into the covers at regular intervals, the hollow frames are made to be close to the copper pipe, and the flushing pipes on the side edges of the hollow frames enter the copper pipe; and then the interior of the copper pipe is flushed, the purpose of timed automatic cleaning is achieved, and the frequency of manual shell disassembling and cleaning is reduced.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically a heat exchanger for a thermal power device that is easy to clean regularly. Background Technology

[0002] Heat exchangers for thermal power plants are widely used devices in thermal power systems. They are mainly used to transfer heat between different fluids to achieve efficient energy utilization and effective fluid separation. The working principle of heat exchangers is based on the basic principle of heat transfer, which mainly includes three modes: convection, conduction, and radiation. In thermal power plants, heat exchangers typically utilize convection and conduction to transfer heat. Specifically, the heat source fluid transfers heat to the heat transfer surface of the heat exchanger; then, the cooling fluid absorbs heat from the heat source fluid through the same heat transfer surface. Through this process, heat is transferred from the heat source fluid to the cooling fluid, thus realizing heat transfer.

[0003] Impurities within the fluid can easily clog the pipes of the heat exchanger, affecting the normal flow of the fluid and reducing heat exchange efficiency. This necessitates regular disassembly and cleaning, impacting the normal operation of the equipment. Therefore, we propose a heat exchanger for thermal power devices that is easy to clean on a regular schedule. Utility Model Content

[0004] The purpose of this invention is to provide a heat exchanger for a thermal power device that is easy to clean at regular intervals. By setting hollow frames that can be pushed left and right inside both side covers, and evenly arranging multiple flushing pipes aligned with copper pipes on their surfaces, the fluid can be periodically stopped from flowing into the cover and the hollow frames can be brought closer to the copper pipes so that the side flushing pipes can enter the interior of the copper pipes to flush the interior of the copper pipes. This achieves the purpose of automatic cleaning at regular intervals, reduces the frequency of manual disassembly and cleaning, and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat exchanger for a thermal power device that is convenient for timed cleaning, comprising a cylindrical tank and a cover. Two covers are provided and installed at both ends of the cylindrical tank. Partitions are fixed inside both sides of the cylindrical tank, and multiple copper tubes are horizontally and evenly connected between the partitions on both sides inside the cylindrical tank. An electric actuator is horizontally installed at the middle position of the outer surface of the cover. The protruding end of the electric actuator penetrates into the inside of the cover, and a hollow frame is vertically fixed at the end of the electric actuator. Multiple flushing pipes communicating with the inside of the hollow frame are evenly connected to the surface of the hollow frame, and the flushing pipes are aligned with the copper tubes. A cleaning conduit is connected to the lower surface of the cover. A solenoid valve is installed on the cleaning conduit, and the cleaning conduit communicates with the inside of the hollow frame through a flexible hose.

[0006] By adopting the above technical solution, different fluids flow inside the copper tube and inside the tank between the partitions to achieve heat exchange. After a period of use, the fluid flow inside the copper tube is stopped, and the flushing pipe on the side of the hollow frame is used to flush the copper tube regularly, reducing the frequency of manual cleaning of the copper tube.

[0007] Optionally, flanges are provided on both outer rings of the cylindrical tank and the outer ring of the cover, and the flanges are connected and locked by bolts to achieve the installation and fixation of the cover and the cylindrical tank.

[0008] By adopting the above technical solution, when manual cleaning of the inside of the copper tube is required, the bolts can be unscrewed and the cover removed for cleaning.

[0009] Optionally, a first conduit is vertically connected to the upper sides of both sides of the cylindrical tank, and the first conduit communicates with the inside of the cylindrical tank.

[0010] By adopting the above technical solution, the heat source fluid flows in through the first conduit and flows out through the other side of the first conduit.

[0011] Optionally, a second conduit is vertically connected to the top of the cover, the second conduit communicates with the interior of the cover, and a solenoid valve is installed on the second conduit.

[0012] By adopting the above technical solution, the heat source fluid flows in through the second conduit, passes through the copper pipe, and then flows out from the second conduit on the other side.

[0013] Optionally, a drain pipe is vertically connected to the bottom of the cover, the drain pipe is connected to the inside of the cover, and a solenoid valve is installed on the drain pipe.

[0014] By adopting the above technical solution, the flushed wastewater can be discharged from the bottom drain pipe.

[0015] Optionally, a sealing ring is provided between the cover and the flange of the cylinder, and the sealing ring abuts against the flange of the cover and the cylinder.

[0016] By adopting the above technical solutions, the sealing effect between the cover and the tank can be improved.

[0017] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0018] 1. The technical solution of this application sets hollow frames that can be pushed left and right inside both sides of the cover. Multiple flushing pipes aligned with the copper pipe are evenly arranged on the surface of the frame. The fluid can be stopped from flowing into the cover at regular intervals, and the hollow frame is brought closer to the copper pipe so that the side flushing pipes can enter the copper pipe and then flush the inside of the copper pipe. This achieves the purpose of timed automatic cleaning, reduces the frequency of manual disassembly and cleaning, and allows the equipment to work for a longer period of time.

[0019] 2. The technical solution of this application has hollow frames that can be pushed and moved inside both covers. During cleaning, water can be sprayed from different directions on both sides to rinse the copper pipe, which makes the cleaning effect better. Attached Figure Description

[0020] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of the heat exchanger for a thermal power device that is convenient for timed cleaning according to this utility model.

[0022] Figure 2 This is a schematic diagram of the internal structure of the heat exchanger for a thermal power device that is convenient for regular cleaning according to this utility model.

[0023] In the diagram: 1. Tank; 11. Baffle; 12. Copper pipe; 13. First conduit; 2. Cover; 21. Second conduit; 22. Drain pipe; 3. Electric actuator; 31. Hollow frame; 311. Flushing pipe; 4. Cleaning conduit; 41. Hose; 5. Solenoid valve; 6. Flange; 61. Bolt. Detailed Implementation

[0024] Please see Figure 1-2 This utility model provides a technical solution: a heat exchanger for a thermal power device that is easy to clean at regular intervals, including a cylindrical tank 1 and a cover 2. Two covers 2 are provided and placed at both ends of the cylindrical tank 1. Flanges 6 are provided on the outer rings of both sides of the cylindrical tank 1 and the outer rings of the cover 2. The flanges 6 are connected and locked by bolts 61 to realize the installation and fixation of the cover 2 and the cylindrical tank 1. A sealing ring is provided between the flanges 6 of the cover 2 and the cylindrical tank 1. The sealing ring is pressed against the flanges 6 of the cover 2 and the cylindrical tank 1 to achieve a sealing effect after the cover 2 is installed. After unscrewing the bolts 61, the cover 2 can be removed for manual cleaning.

[0025] Both sides of the cylindrical tank 1 are fixed with partitions 11. Multiple copper pipes 12 are horizontally and evenly connected between the partitions 11 on both sides of the cylindrical tank 1. The two ends of the copper pipes 12 are respectively connected to the space inside the cover 2 on both sides. The top of both sides of the cylindrical tank 1 is vertically connected with a first conduit 13, which is connected to the inside of the cylindrical tank 1. The top of the cover 2 is vertically connected with a second conduit 21, which is connected to the inside of the cover 2. In use, the heat source fluid flows into the inside of the cylindrical tank 1 from the first conduit 13, while the cold source fluid flows into the inside of the cover 2 from the second conduit 21 and then flows from the inside of the copper pipes 12. It can exchange heat with the heat source fluid in the cylindrical tank 1. Finally, the heated cold source fluid flows out from the second conduit 21 on the other side of the cover 2.

[0026] An electric push rod 3 is horizontally installed in the middle of the outer surface of the cover 2. The protruding end of the electric push rod 3 penetrates into the interior of the cover 2, and a hollow frame 31 is vertically fixed at the end of the electric push rod 3. Multiple flushing pipes 311 that communicate with the interior are evenly connected to the surface of the hollow frame 31. The flushing pipes 311 are aligned with the copper pipe 12. Therefore, when the electric push rod 3 moves the hollow frame 31, the flushing pipes 311 can be inserted into the interior of the copper pipe 12.

[0027] A cleaning conduit 4 is connected to the lower surface of the cover 2. A solenoid valve 5 is installed on the cleaning conduit 4, and the cleaning conduit 4 is connected to the interior of the hollow frame 31 through a hose 41. At the same time, a solenoid valve 5 is also installed on the second conduit 21. The solenoid valve 5 can be connected to the electric actuator 3 to the industrial control computer. The solenoid valve 5 on the second conduit 21 is closed first, and the electric actuator 3 on the left side is controlled to move the hollow frame 31 closer to the partition 11, so that the flushing pipe 311 on the surface of the hollow frame 31 extends into the left side of the copper pipe 12. Then, the solenoid valve 5 on the left cleaning conduit 4 is opened, so that high-pressure water enters the hollow frame 31 and sprays out from the flushing pipe 311 to clean the interior of the copper pipe 12. During cleaning, when the left hollow frame 31 is close to the copper pipe 12, the right hollow frame 31 is kept away from the copper pipe 12, and vice versa. This keeps one end of the copper pipe 12 open and allows the high-pressure flushing water to drain smoothly.

[0028] A drain pipe 22 is vertically connected to the bottom of the cover 2. The drain pipe 22 is connected to the inside of the cover 2, and a solenoid valve 5 is installed on the drain pipe 22. When rinsing from left to right, the solenoid valve 5 of the right drain pipe 22 is opened to discharge sewage. Conversely, when rinsing from right to left, the solenoid valve 5 of the left drain pipe 22 is opened to discharge sewage. After rinsing, the electric push rod 3 drives the hollow frame 31 to reset.

[0029] In use, the two first conduits 13 are connected to the inlet and outlet pipes of the heat source fluid, respectively, while the two second conduits 21 are connected to the inlet and outlet pipes of the cold source fluid, respectively. The cleaning conduit 4 is connected to the high-pressure clean water supply pipe, and the drain pipe 22 is connected to the sewer pipe. During normal operation, only the solenoid valves 5 of the two second conduits 21 are opened, while the other solenoid valves 5 are closed. The heat source fluid flows inside the tank 1, while the cold source fluid flows into the cover 2 on one side and then flows through the copper pipe 12 to the cover 2 on the other side. During the flow, the cold source fluid absorbs heat from the heat source fluid to achieve heat exchange. All solenoid valves 5 and electric actuators 3 are connected to the industrial control computer. After the set cleaning time is reached, the solenoid valves 5 on the second conduits 21 are closed first, and the electric actuator 3 on the left side is controlled to move the hollow frame 31 closer to the partition 11, so that the flushing pipe 311 on the surface of the hollow frame 31 extends into the left side of the copper pipe 12. Then, the solenoid valves 5 on the left cleaning conduit 4 and the right drain pipe 22 are opened, allowing the cold source fluid to flow freely. High-pressure water is sprayed out from the left side through the flushing pipe 311, flushing the inside of the copper pipe 12 from left to right. It then carries impurities from inside the copper pipe 12 to the right and finally discharges from the drain pipe 22 on the right. Then, the solenoid valves 5 on the left cleaning conduit 4 and the right drain pipe 22 are closed, and the electric actuator 3 drives the hollow frame 31 on the left to reset. Next, the electric actuator 3 on the right moves the hollow frame 31 closer to the partition 11, causing the flushing pipe 311 on the surface of the hollow frame 31 to extend into the right side of the copper pipe 12. Then, the solenoid valves 5 on the right cleaning conduit 4 and the left drain pipe 22 are opened, allowing high-pressure water to spray out from the right side through the flushing pipe 311, flushing the inside of the copper pipe 12 from right to left. It then carries impurities from inside the copper pipe 12 to the left and finally discharges from the drain pipe 22 on the left. Then, the solenoid valves 5 on the right cleaning conduit 4 and the left drain pipe 22 are closed, and the electric actuator 3 drives the hollow frame 31 on the right to reset. Finally, the solenoid valve 5 on the second conduit 21 can be opened again to continue operation.

Claims

1. A heat exchanger for a thermal power device that is easy to clean at regular intervals, comprising a cylindrical tank (1) and a cover (2), characterized in that: The cover (2) is provided in two and installed at both ends of the cylindrical tank (1). The inner sides of the cylindrical tank (1) are fixed with partitions (11). Multiple copper tubes (12) are evenly connected horizontally between the partitions (11) on both sides inside the cylindrical tank (1). An electric push rod (3) is horizontally installed in the middle of the outer surface of the cover (2). The protruding end of the electric push rod (3) penetrates into the interior of the cover (2), and a hollow frame (31) is vertically fixed at the end of the electric push rod (3). Multiple flushing pipes (311) communicating with the interior are evenly connected to the surface of the hollow frame (31). The flushing pipes (311) are aligned with the copper pipe (12). A cleaning conduit (4) is connected to the lower surface of the cover (2), a solenoid valve (5) is installed on the cleaning conduit (4), and the cleaning conduit (4) is connected to the interior of the hollow frame (31) through a hose (41).

2. The heat exchanger for a thermal power device that is convenient to clean at regular intervals according to claim 1, characterized in that: Flanges (6) are provided on both outer rings of the cylindrical tank (1) and the outer ring of the cover (2). The flanges (6) are connected and locked by bolts (61) to achieve the installation and fixation of the cover (2) and the cylindrical tank (1).

3. The heat exchanger for a thermal power device that is convenient to clean at regular intervals according to claim 1, characterized in that: The upper sides of the cylindrical tank (1) are each vertically connected to a first conduit (13), which communicates with the inside of the cylindrical tank (1).

4. The heat exchanger for a thermal power device that is convenient to clean at regular intervals according to claim 1, characterized in that: A second conduit (21) is vertically connected above the cover (2), the second conduit (21) communicates with the interior of the cover (2), and a solenoid valve (5) is installed on the second conduit (21).

5. The heat exchanger for a thermal power device that is convenient to clean at regular intervals according to claim 1, characterized in that: The bottom of the cover (2) is vertically connected to a drain pipe (22), which is connected to the inside of the cover (2) and a solenoid valve (5) is installed on the drain pipe (22).

6. The heat exchanger for a thermal power device that is convenient to clean at regular intervals according to claim 2, characterized in that: A sealing ring is provided between the cover (2) and the flange (6) of the cylinder (1), and the sealing ring abuts against the flange (6) of the cover (2) and the cylinder (1).

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