Energy-saving tube-fin heat exchanger

Abstract

The application belongs to the technical field of finned tube heat exchanger, and particularly discloses an energy-saving finned tube heat exchanger. The finned tube heat exchanger comprises a rack, a heat exchange shell fixed to the rack, mirror-imaged flow-through tubes communicated with the heat exchange shell, mirror-imaged shunt shells arranged in the heat exchange shell, a water inlet pipe arranged on one side of the shunt shell, heat exchange tubes arranged in a circumferential array on the mirror-imaged shunt shells, fins fixed to the heat exchange tubes in a circumferential array, and a monitoring shell fixed to the water inlet pipe. The high-temperature cooling water temperature injected into the device is monitored by the monitoring shell, and the attachment amount of solid impurities per unit time is judged according to the high-temperature cooling water temperature and its flow, so that the solid impurities on the heat exchange tubes and fins are accurately and timely cleaned when the high-temperature cooling water exchanges heat with seawater, and the stability of the heat exchange effect of the device on the high-temperature cooling water is ensured.

Description

Technical Field

[0001] This invention relates to the field of finned tube heat exchanger technology, and mainly mentions an energy-saving finned tube heat exchanger. Background Technology

[0002] A tube-fin heat exchanger is a device that enhances heat transfer efficiency by expanding the heat transfer surface (fins). It mainly consists of a heat transfer base tube, fins, and a supporting frame. It is widely used in industrial settings requiring high-efficiency heat transfer and where space is limited. It plays a crucial role in refrigeration and air conditioning, automotive thermal management, chemical processes, and energy systems. However, dust or chemical contaminants easily accumulate on the fins and the exterior of the base tube, reducing heat transfer efficiency. Taking the application of tube-fin heat exchangers in a gas turbine regenerative system as an example, during heat exchange between seawater and cooling water, the seawater heats up while the cooling water cools down. The increased temperature of the seawater causes dissolved solid impurities to precipitate and adhere to the finned tubes. As the amount of adhering impurities increases... As impurities accumulate, they can affect the heat exchange efficiency between seawater and high-temperature cooling water. If too many impurities adhere (excessively affecting heat exchange efficiency), timely cleaning is necessary. The heat generation of the engine unit is related to its sailing speed and load. As heat generation increases, the temperature of the high-temperature cooling water will change synchronously with the heat generation of the engine unit. The changing temperature of the high-temperature cooling water results in different amounts of impurities adhering to the finned tubes per unit time, making it difficult to judge the amount of impurities on the finned tubes, and consequently, difficult to judge the cleaning frequency and time of the finned tubes. If cleaning is not done in time, it will affect the heat exchange effect of the finned tubes. If cleaning is done blindly, it will lead to a waste of resources. Summary of the Invention

[0003] To overcome the drawback that changes in cooling water temperature can cause fluctuations in the amount of impurities adhering to the finned tubes per unit time, affecting the judgment of when the finned tubes need cleaning and thus affecting the heat exchange efficiency of the finned tubes, this invention provides an energy-saving seamless titanium finned tube for marine heat exchange units that allows for precise judgment.

[0004] The technical solution is as follows: An energy-saving tube-fin heat exchanger includes a frame, a heat exchange shell fixedly connected to the frame, a flow pipe with a mirror-distributed arrangement connected to the heat exchange shell, a branch shell with a mirror-distributed arrangement inside the heat exchange shell, an inlet pipe on one side of the branch shell being fixedly connected to the frame via a mounting bracket, an outlet pipe on the branch shell away from the inlet pipe, heat exchange tubes with a circumferentially arrayed arrangement on the mirror-distributed branch shells, fins with a circumferentially arrayed arrangement fixedly connected to the outside of the heat exchange tubes, a monitoring shell fixedly connected to the inlet pipe, a temperature monitoring mechanism for monitoring the cooling water temperature on the monitoring shell, a flow monitoring mechanism for monitoring the cooling water flow rate on the inlet pipe, and a cleaning mechanism for cleaning impurities adhering to the fins on the heat exchange shell.

[0005] As a further preferred embodiment, a transfer shell is fixedly connected to the side of the diversion shell closest to the inlet pipe, which is away from the inlet pipe. The transfer shell is in contact with the heat exchange shell. All the heat exchange tubes arranged in a circumferential array are in contact with the transfer shell. A dispersion plate is rotatably connected to the heat exchange shell. The dispersion plate is provided with circumferentially arrayed through holes. The heat exchange tubes arranged in a circumferential array are collectively provided with a transmission frame. The diversion shell away from the inlet pipe is fixedly connected to the transmission frame, and the dispersion plate is fixedly connected to the transmission frame.

[0006] As a further preferred embodiment, the radius of the through holes on the dispersion plate is greater in the vertical direction than the farthest distance between the axes of adjacent fins and adjacent heat exchange tubes, in order to define the flow channel of seawater.

[0007] As a further preferred embodiment, the temperature monitoring mechanism includes a first sliding frame slidably connected to the monitoring housing, and an expansion member is disposed inside the monitoring housing. The expansion member is in contact with and cooperates with the first sliding frame, and the expansion member is made of a thermally expanding material.

[0008] As a further preferred embodiment, a first fixed shell is fixedly connected to the side of the water inlet pipe near the first sliding frame. The first fixed shell is filled with liquid. A first piston rod is slidably connected to the first fixed shell. A spring is provided between the first fixed shell and the first piston rod. The first piston rod is fixedly connected to the first sliding frame. A second fixed shell is fixedly connected to the water inlet pipe through a mounting bracket. The second fixed shell is filled with liquid. The second fixed shell is connected to the first fixed shell through a pipe. A second piston rod is slidably connected to the second fixed shell.

[0009] As a further preferred embodiment, the flow monitoring mechanism includes a monitoring frame, which is rotatably connected to the water inlet pipe. The water inlet pipe is slidably connected to a sliding plate via a mounting rod. The water inlet pipe is rotatably connected to a first threaded rod, which is threadedly connected to the sliding plate. A fixing block is fixedly attached to the water inlet pipe, and a button is provided on the fixing block. The button on the fixing block is in a pressing engagement with the sliding plate.

[0010] As a further preferred embodiment, a reduction gearbox is fixedly connected to the water inlet pipe via a mounting bracket. The input shaft of the reduction gearbox is fixedly connected to the monitoring frame, and a first transmission wheel is fixedly connected to the output shaft of the reduction gearbox. A transmission rod is rotatably connected to the water inlet pipe via a mounting plate. The transmission rod and the first threaded rod are driven by a bevel gear set. A second transmission wheel is splined to the transmission rod. The first transmission wheel and the second transmission wheel are in transmission cooperation. A first rotating frame is rotatably connected to the second transmission wheel, and the first rotating frame is fixedly connected to the second piston rod.

[0011] As a further preferred embodiment, the cleaning mechanism includes a first motor, which is fixedly connected to the heat exchange shell via a mounting bracket. The first motor is electrically connected to a button on the fixing block. The output shaft of the first motor is fixedly connected to a second threaded rod, which is threadedly connected to a second sliding frame. The second sliding frame is provided with a second rotating frame. The diversion shell, the transfer shell, and the dispersion plate, which are away from the water inlet pipe, are all slidably connected to the second rotating frame. A third sliding frame is fixedly connected to the side of the second rotating frame near the water inlet pipe. A cleaning frame arranged in a circumferential array is rotatably connected to the third sliding frame. The cleaning frame contacts and engages with adjacent heat exchange tubes and adjacent circumferentially arrayed fins.

[0012] As a further preferred embodiment, the system also includes an adjustment mechanism for adjusting the state of the heat exchange tubes. The adjustment mechanism is mounted on the frame and includes a second motor fixed to the frame. A gear is mounted on the output shaft of the second motor. A fixed frame is fixed to the distribution shell away from the inlet pipe. A gear ring is mounted on the fixed frame, and the gear ring meshes with the gear on the output shaft of the second motor. The mirror-distributed distribution shells are rotatably connected to the heat exchange shell. The mirror-distributed distribution shells are rotatably connected to the heat exchange tubes arranged in a circumferential array. The heat exchange tubes arranged in a circumferential array are rotatably connected to the transmission frame. The second sliding frame is rotatably connected to the second rotating frame. The inlet pipe is rotatably connected to the adjacent distribution shell, and the distribution shell away from the inlet pipe is rotatably connected to its outlet pipe.

[0013] As a further preferred embodiment, the water inlet pipe is fixedly connected to a fixing plate, the fixing plate is rotatably connected to the diversion shell near the water inlet pipe, and a transmission gear ring is fixedly connected to the side of the fixing plate away from the water inlet pipe by a mounting bracket. Gears are provided on each of the circumferentially arrayed heat exchange tubes, and the gears on the circumferentially arrayed heat exchange tubes mesh with the transmission gear ring.

[0014] Compared with existing technologies, this invention has the following advantages: This invention monitors the temperature of the high-temperature cooling water injected into the device through a monitoring shell, and judges the amount of solid impurities adhering per unit time based on the temperature and flow rate of the high-temperature cooling water. This allows for precise and timely cleaning of solid impurities on the heat exchange tubes and fins when they affect the heat exchange between the high-temperature cooling water and seawater, ensuring the stability of the heat exchange effect of the device on the high-temperature cooling water. By limiting the shape and arrangement of the fins, the seawater flows spirally along the fins and exchanges heat with the high-temperature cooling water in the heat exchange tubes during the heat exchange process without affecting the heat exchange area, ensuring the heat exchange effect between the high-temperature cooling water and seawater. The velocity difference improves the heat exchange efficiency between the high-temperature cooling water and seawater. The cleaning frame, in conjunction with the fins, cleans the adhering materials on adjacent heat exchange tubes and fins, ensuring a stable heat exchange efficiency between the high-temperature cooling water and seawater, thus enhancing the practicality of the device. The transmission gear ring meshes with gears on the circumferentially arrayed heat exchange tubes, causing the tubes to rotate both on their own axis and around the sun during heat exchange. This provides a circumferential velocity difference between the high-temperature cooling water and seawater, thereby improving heat exchange efficiency. Furthermore, the rotation of the heat exchange tubes also causes the high-temperature cooling water inside to rotate, improving the uniformity of heat exchange between the seawater and cooling water. Attached Figure Description

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

[0016] Figure 2 This is a three-dimensional structural diagram of the internal structure of the frame of the present invention;

[0017] Figure 3 This is a three-dimensional structural diagram illustrating the relationship between the heat exchange tube and the fins in this invention.

[0018] Figure 4 This is a three-dimensional structural diagram of the internal structure of the water inlet pipe of the present invention;

[0019] Figure 5 This is a three-dimensional structural cross-sectional view of the fit between the heat exchange tube and the intermediate shell of the present invention;

[0020] Figure 6 This is a three-dimensional structural cross-sectional view of the temperature monitoring mechanism of the present invention;

[0021] Figure 7 This is a three-dimensional structural diagram of the flow monitoring mechanism of the present invention;

[0022] Figure 8 This is a three-dimensional sectional view of the cleaning mechanism of the present invention;

[0023] Figure 9 This is a three-dimensional structural diagram illustrating the cooperative relationship between the third sliding frame and the cleaning frame of the present invention;

[0024] Figure 10 This is a three-dimensional structural diagram of the adjustment mechanism of the present invention.

[0025] Wherein: 1-Frame, 2-Heat exchange shell, 3-Diverter shell, 4-Inlet pipe, 5-Heat exchange tube, 6-Fin, 7-Monitoring shell, 8-Transfer shell, 9-Dispersion plate, 901-Transmission frame, 10-Temperature monitoring mechanism, 1001-First sliding frame, 1002-Expansion component, 1003-First fixed shell, 1004-First piston rod, 1005-Second fixed shell, 1006-Second piston rod, 11-Flow monitoring mechanism, 1101-Monitoring frame, 1102-Sliding plate, 1103-First threaded rod. 1104-Fixed block, 1105-Reduction gearbox, 1106-First transmission wheel, 1107-Transmission rod, 1108-Second transmission wheel, 1109-First rotating frame, 12-Cleaning mechanism, 1201-First motor, 1202-Second threaded rod, 1203-Second sliding frame, 1204-Second rotating frame, 1205-Third sliding frame, 1206-Cleaning frame, 13-Adjusting mechanism, 1301-Second motor, 1302-Fixed frame, 1303-Fixed plate, 1304-Transmission gear ring. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "setting," "installation," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0027] Example 1: An energy-saving tube-fin heat exchanger, please refer to... Figures 1-5The system includes a frame 1, to which a heat exchange shell 2 is fixedly connected. Two flow pipes, mirror-distributed to the left and right sides, are connected to the heat exchange shell 2 in a circumferential array to ensure uniform water injection and define its flow direction. Two branch shells 3 are located on the left and right sides of the inner wall of the heat exchange shell 2, mirror-distributed. The left branch shell 3 has an inlet pipe 4, fixedly connected to the frame 1 via a mounting bracket. The right branch shell 3 has an outlet pipe on its right side. Both branch shells 3 share six heat exchange tubes 5 arranged in a circumferential array. Circumferentially arrayed fins 6 are fixedly connected to the outer side of each heat exchange tube 5. The fins 6 increase the heat exchange area of ​​the heat exchange tubes 5, thereby increasing their heat exchange efficiency. The fins 6 have a small pitch angle, reducing obstruction to seawater. A monitoring shell 7 is fixedly connected to the inlet pipe 4. A transfer shell 8 is fixedly connected to the left side of the right branch shell 3, and the transfer shell 8 is connected to the inner wall of the heat exchange shell 2. The six heat exchange tubes 5 are in contact with the transfer shell 8. The heat exchange shell 2 is rotatably connected to a dispersion plate 9. The dispersion plate 9 is provided with six through holes arranged in a circumferential array, and the six through holes on the dispersion plate 9 correspond one-to-one with the six heat exchange tubes 5. The radius of the through holes on the dispersion plate 9 in the vertical direction is greater than the farthest distance between the axes of the adjacent fins 6 and the adjacent heat exchange tubes 5, which is used to limit the flow channel of seawater. Seawater flows to the outside of the heat exchange tubes 5 through the annular gap between the dispersion plate 9 and the transfer shell 8, thereby enhancing its heat exchange effect. The six heat exchange tubes 5 are jointly provided with a transmission frame 901. The right-side diversion shell 3 is fixedly connected to the transmission frame 901, and the dispersion plate 9 is fixedly connected to the transmission frame 901. The monitoring shell 7 is provided with a temperature monitoring mechanism 10 for monitoring the cooling water temperature. The inlet pipe 4 is provided with a flow monitoring mechanism 11 for monitoring the cooling water flow rate. The heat exchange shell 2 is provided with a cleaning mechanism 12 for cleaning impurities attached to the fins 6.

[0028] Please refer to 1. Figure 4 and Figure 6 The temperature monitoring mechanism 10 includes a first sliding frame 1001, which is slidably connected to the monitoring housing 7. An expansion member 1002 is provided on the inner side of the monitoring housing 7, which is in contact with the first sliding frame 1001. The expansion member 1002 is made of thermal expansion material and is used to monitor the temperature of the high-temperature cooling water in the water inlet pipe 4. A first fixed housing 1003 is fixedly connected to the upper side of the water inlet pipe 4. The first fixed housing 1003 is filled with hydraulic oil. The first fixed housing 1003 is slidably connected to the first piston rod 1004, and a spring is provided between the two. The first piston rod 1004 is fixedly connected to the first sliding frame 1001. The water inlet pipe 4 is fixedly connected to the second fixed housing 1005 through a mounting bracket. The second fixed housing 1005 is filled with hydraulic oil. The second fixed housing 1005 is connected to the first fixed housing 1003 through a pipe. The second fixed housing 1005 is slidably connected to the second piston rod 1006.

[0029] Please refer to 4. Figure 6 and Figure 7The flow monitoring mechanism 11 includes a monitoring frame 1101, which consists of a cylindrical rod and four fan blades arranged in a circumferential array. The cylindrical rod of the monitoring frame 1101 is rotatably connected to the inlet pipe 4. The four fan blades of the monitoring frame 1101 are all located inside the inlet pipe 4 for real-time flow monitoring. A sliding plate 1102 is slidably connected to the upper side of the inlet pipe 4 via a mounting rod. A first threaded rod 1103, which is threadedly connected to the sliding plate 1102, is rotatably connected to the upper side of the inlet pipe 4. A fixing block 1104 is fixedly connected to the upper side of the inlet pipe 4. A button that presses against the lower side of the sliding plate 1102 is provided on the fixing block 1104. A reduction gearbox 1105 is fixedly connected to the upper side of the inlet pipe 4 via a mounting frame. The input of the reduction gearbox 1105 is... The shaft is fixedly connected to the cylindrical rod part of the monitoring frame 1101. The output shaft of the gearbox 1105 is fixedly connected to the first transmission wheel 1106. The first transmission wheel 1106 is frustum-shaped and its cross-sectional radius gradually decreases from left to right. The water inlet pipe 4 is rotatably connected to the transmission rod 1107 through the mounting plate. The transmission rod 1107 and the first threaded rod 1103 are driven by a bevel gear set. The bevel gear set can freely switch between the transmission state (meshing) and the non-transmission state (disengagement). The transmission rod 1107 is splinedly connected to the second transmission wheel 1108. The first transmission wheel 1106 and the second transmission wheel 1108 are driven by extrusion friction. The left side of the second transmission wheel 1108 is rotatably connected to the first rotating frame 1109, which is fixedly connected to the second piston rod 1006.

[0030] Please refer to 5. Figure 8 and Figure 9 The cleaning mechanism 12 includes a first motor 1201 electrically connected to a button on the fixed block 1104. The first motor 1201 is fixed to the right side of the heat exchange shell 2 via a mounting bracket. The output shaft of the first motor 1201 is fixedly connected to a second threaded rod 1202. The second threaded rod 1202 is threadedly connected to a second sliding frame 1203. The second sliding frame 1203 is provided with a second rotating frame 1204. The diversion shell 3, the transfer shell 8, and the dispersion plate 9 on the right side are all slidably connected to the second rotating frame 1204. The left side of the second rotating frame 1204 is fixedly connected to a second... The third sliding frame 1205 is located inside the heat exchange shell 2. The third sliding frame 1205 is composed of circumferentially arranged round rods and circumferentially arranged rings, which are staggered. Each circumferentially arranged ring of the third sliding frame 1205 is rotatably connected to a cleaning frame 1206. The cleaning frame 1206 is hollow to prevent it from affecting the seawater flow. The cleaning frame 1206 contacts and engages with the adjacent heat exchange tube 5 and the adjacent circumferentially arranged fins 6.

[0031] When this device is needed to cool the cooling water of the ship's engine set, the user first connects the inlet pipe 4 to the cooling water outlet, and the outlet pipe on the right side of the split shell 3 to the cooling water inlet. At the same time, the user connects the flow pipe on the right side of the heat exchange shell 2 to the external seawater supply device, and the flow pipe on the left side of the heat exchange shell 2 to the inlet of the external seawater purification equipment. At this point, the installation of this device is complete.

[0032] During ship navigation, the high-temperature cooling water after cooling the engine unit is injected into the left-side distribution shell 3 through the inlet pipe 4. At this time, the user injects seawater into the heat exchange shell 2 through the flow pipe on the right side of the heat exchange shell 2 via an external seawater supply device. The high-temperature cooling water in the distribution shell 3 is dispersed and flows into the six heat exchange tubes 5 and continues to flow to the right. After the seawater is injected into the right-side connecting pipe of the heat exchange shell 2, the seawater flows to the left through the gap between the transfer shell 8 and the dispersion plate 9 and fills the heat exchange shell 2. During this process, the seawater flowing to the left through the gap between the transfer shell 8 and the dispersion plate 9 first contacts the adjacent heat exchange tubes 5 and fins 6 and exchanges heat with the high-temperature cooling water in the heat exchange tubes 5 (i.e., cools the high-temperature cooling water). After the heat exchange is completed, the seawater continues to move to the left and flows into the external seawater purification equipment through the flow pipe on the left side of the heat exchange shell 2. After the heat exchange is completed, the cooling water flows back into the engine unit's cooling system through the outlet pipe on the right-side distribution shell 3 and cools the engine unit again.

[0033] During the heat exchange process between the high-temperature cooling water and seawater, the seawater moves to the left and comes into contact with the fins 6. Taking the fins 6 on a heat exchange tube 5 as an example, since the pitch angle of the fins 6 is relatively large, the seawater will not be excessively blocked by the fins 6 during its leftward movement, thus preventing the seawater from moving to the outside of the fins 6. By limiting the shape and arrangement of the fins 6, the seawater can flow in a spiral along the fins 6 and exchange heat with the high-temperature cooling water in the heat exchange tube 5 without affecting the heat exchange area. This ensures the velocity difference between the high-temperature cooling water and the seawater and improves the heat exchange efficiency between the high-temperature cooling water and the seawater.

[0034] After the high-temperature cooling water enters the inlet pipe 4, the expansion member 1002 inside the monitoring shell 7 undergoes thermal expansion due to the temperature rise. The expansion member 1002 drives the first sliding frame 1001 to move upward. The first sliding frame 1001 drives the first piston rod 1004 to move upward and compresses the spring between the first piston rod 1004 and the first fixed shell 1003. The hydraulic oil inside the first fixed shell 1003 is compressed and flows through the pipe to the second fixed shell 1005. The hydraulic oil compresses and drives the second piston rod 1006 to move to the left. The second piston rod 1006 drives the first rotating frame 1109 to move to the left. The first rotating frame 1109 drives the second transmission wheel 1108 to move to the left, thereby increasing the transmission ratio between the second transmission wheel 1108 and the first transmission wheel 1106 (i.e., the cooling water temperature is proportional to the transmission ratio between the second transmission wheel 1108 and the first transmission wheel 1106).

[0035] After the high-temperature cooling water enters the inlet pipe 4, the cooling water drives the monitoring frame 1101 to rotate. The monitoring frame 1101 drives the input shaft of the reduction gearbox 1105 to rotate. The rotation speed of the monitoring frame 1101 is slowed down by the reduction gearbox 1105 and then drives the first transmission wheel 1106 to rotate through its output shaft. The first transmission wheel 1106 drives the second transmission wheel 1108 to rotate. The second transmission wheel 1108 drives the transmission rod 1107 to rotate. The transmission rod 1107 drives the first threaded rod 1103 to rotate through the bevel gear set. The first threaded rod 1103 drives the sliding plate 1102 to move downward gradually in a threaded manner. As the sliding plate 1102 moves downward gradually... As the heat exchange tubes 5 and fins 6 inside the heat exchange shell 2 gradually increase the amount of heat exchanged between the high-temperature cooling water and the seawater, the temperature of the high-temperature cooling water is transferred to the seawater through the heat exchange tubes 5 and fins 6 during the heat exchange process. As the seawater heats up, the solubility of soluble solid impurities in it gradually decreases, and the precipitated solid impurities gradually adhere to the surface of the heat exchange tubes 5 and fins 6, thereby affecting their thermal conductivity and thus affecting the heat exchange efficiency between the high-temperature cooling water and the seawater (i.e., the cooling water temperature is directly proportional to the amount of impurities adhering to the surface of the heat exchange tubes 5 and fins 6 per unit time). If the cooling water temperature rises, as mentioned above, it will cause the sliding plate 1102 to move downward faster.

[0036] During the downward movement of the aforementioned sliding plate 1102, the sliding plate 1102 moves downward and contacts the button on the upper side of the fixed block 1104. At this time, it indicates that the solid impurities accumulated inside the heat exchange shell 2 are sufficient to affect the heat exchange efficiency between the high-temperature cooling water and the seawater. As the sliding plate 1102 gradually moves downward, it presses down on the button on the upper side of the fixed block 1104. The button on the upper side of the fixed block 1104 controls the output shaft of the first motor 1201 to rotate. The output shaft of the first motor 1201 drives the second threaded rod 1202 to rotate. The second threaded rod 1202 drives the second sliding frame 1203 and the second rotating frame 1204 to move to the right via the thread. 04. The third sliding frame 1205 and its six cleaning frames 1206 move to the right. Taking one of the cleaning frames 1206 as an example, the cleaning frame 1206 moves to the right and squeezes the circumferentially distributed fins 6. The cleaning frame 1206 is squeezed by the circumferentially distributed fins 6 and rotates. It continues to move to the right to clean the impurities on the surface of the circumferentially distributed fins 6 and heat exchange tubes 5, thereby preventing the impurities attached to the surface of the circumferentially distributed fins 6 and heat exchange tubes 5 from affecting the heat exchange efficiency. When the third sliding frame 1205 and its six cleaning frames 1206 move to the right end of the fins 6, the user controls the first motor 1201 to reverse. The output shaft of the first motor 1201... The first threaded rod 1103 is reversed, thereby causing the third sliding frame 1205 and its six cleaning frames 1206 to move to the left and reset. During the reset process, the cleaning frames 1206 also clean impurities on the adjacent heat exchange tubes 5 and adjacent fins 6 until the reset is complete. The user then stops the first motor 1201, and then switches the bevel gear set between the transmission rod 1107 and the first threaded rod 1103 to the non-transmission state. At the same time, the user reverses the first threaded rod 1103 and drives the sliding plate 1102 to reset. After the sliding plate 1102 is reset, the user switches the bevel gear set between the transmission rod 1107 and the first threaded rod 1103 back to the non-transmission state. Switching to transmission mode, the heat exchange between high-temperature cooling water and seawater continues. The cleaning frame 1206, in conjunction with the fins 6, cleans impurities adhering to adjacent heat exchange tubes 5 and fins 6, ensuring a stable heat exchange efficiency between the high-temperature cooling water and seawater, thus improving the practicality of the device. The monitoring shell 7 monitors the temperature of the high-temperature cooling water injected into the device and determines the amount of solid impurities adhering per unit time based on the temperature and flow rate. This allows for precise and timely cleaning of solid impurities on the heat exchange tubes 5 and fins 6 when they affect the heat exchange between the high-temperature cooling water and seawater, ensuring the stability of the device's heat exchange effect on the high-temperature cooling water.

[0037] The user repeats the above steps to exchange heat with the high-temperature cooling water until the high-temperature cooling water has cooled down completely. That is, after the ship's engine unit has stopped working (the ship is docked) for a period of time, the user stops injecting seawater into the heat exchange shell 2. At this point, the use of this device is complete.

[0038] In Example 1, both flow dividers 3 are fixedly connected to the heat exchanger 2, both flow dividers 3 are fixedly connected to and connected to the six heat exchange tubes, the six heat exchange tubes 5 are fixedly connected to the transmission frame 901, the second sliding frame 1203 is fixedly connected to the second rotating frame 1204, the water inlet pipe 4 is fixedly connected to and connected to the left flow divider 3, and the right flow divider 3 is fixedly connected to and connected to its upper water outlet pipe.

[0039] In embodiment 2, both flow dividers 3 are rotatably connected to the heat exchanger 2, both flow dividers 3 are rotatably connected to the six heat exchange tubes 5, the six heat exchange tubes 5 are rotatably connected to the transmission frame 901, the second sliding frame 1203 is rotatably connected to the second rotating frame 1204, the water inlet pipe 4 is rotatably connected to the left flow divider 3, and the right flow divider 3 is rotatably connected to its upper water outlet pipe.

[0040] Example 2: Based on Example 1, please refer to... Figure 2 and Figures 8-10 It also includes an adjustment mechanism 13 for adjusting the state of the heat exchange tube 5. The adjustment mechanism 13 is mounted on the frame 1 and includes a second motor 1301. The second motor 1301 is fixed to the frame 1, and a gear is provided on the output shaft of the second motor 1301. A fixing frame 1302 with a gear ring on the outer side is fixed to the right side of the right-side split shell 3. The gear ring on the fixing frame 1302 meshes with the gear on the output shaft of the second motor 1301. Both the left and right split shells 3 are rotatably connected to the heat exchange shell 2. The heat exchange tubes 5 are rotatably connected to the circumferentially arrayed heat exchange tubes 5. All six heat exchange tubes 5 are rotatably connected to the transmission frame 901. The second sliding frame 1203 is rotatably connected to the second rotating frame 1204. The water inlet pipe 4 is rotatably connected to the adjacent branch shell 3. The branch shell 3 on the right side is rotatably connected to its right water outlet pipe. The right side of the water inlet pipe 4 is fixedly connected to the fixing plate 1303, which is rotatably connected to the left branch shell 3. The right side of the fixing plate 1303 is fixedly connected to the transmission gear ring 1304 through the mounting frame. All six heat exchange tubes 5 are provided with gears that mesh with the transmission gear ring 1304.

[0041] During the operation of this device, the user starts the second motor 1301. The output shaft of the second motor 1301 drives the gear on it to rotate. The gear on the second motor 1301 meshes with the gear ring on the fixed frame 1302 and drives the fixed frame 1302 to rotate. The fixed frame 1302 drives the transfer shell 8, the dispersion plate 9, the six heat exchange tubes 5 and their upper fins 6, and the left side distribution shell 3 to rotate together. This causes the six heat exchange tubes 5 and their upper fins 6 to move in the heat exchange shell 2, thereby increasing the circumferential velocity difference between the high-temperature cooling water and the seawater in the six heat exchange tubes 5 and improving the heat exchange efficiency between the seawater and the high-temperature cooling water.

[0042] When the six heat exchange tubes 5 rotate, the gears on all six heat exchange tubes 5 mesh with the transmission gear ring 1304, driving the six heat exchange tubes 5 and their fins 6 to rotate, thereby reducing the probability of solid impurities adhering during heat exchange. Taking one heat exchange tube 5 and its fins 6 as an example, during the rotation of the heat exchange tube 5, the transmission gear ring 1304 meshes with the gears on the circumferentially arrayed heat exchange tubes 5, causing the circumferentially arrayed heat exchange tubes 5 to revolve around the sun and rotate on their own axis during the heat exchange process, providing a circumferential velocity difference between the high-temperature cooling water and the seawater, thereby improving the heat exchange efficiency. The rotation of the heat exchange tubes 5 also causes the high-temperature cooling water inside to rotate, thereby improving the uniformity of heat exchange between the seawater and the cooling water. When the device stops exchanging heat with the cooling water, the user controls the second motor 1301 to drive the central transfer shell 8, the dispersion plate 9, the six heat exchange tubes 5 and their fins 6, and the left-side diversion shell 3 to reset together. Then the user turns off the second motor 1301, at which point the use of the device is complete.

[0043] The technical principles of the embodiments of the present invention have been described above with reference to specific examples. These descriptions are merely for explaining the principles of the embodiments of the present invention and should not be construed as limiting the scope of protection of the embodiments of the present invention in any way. Based on the explanation herein, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the embodiments of the present invention.

Claims

1. An energy saving tube fin heat exchanger, characterized by: The application relates to a heat exchange device, which comprises an organic frame (1), a heat exchange shell (2) fixed to the frame (1), flow-through pipes in mirror image distribution communicated with the heat exchange shell (2), and split shells (3) in mirror image distribution arranged in the heat exchange shell (2), wherein one side of the split shells (3) is provided with an inlet pipe (4) fixed to the frame (1) through a mounting frame, the split shells (3) away from the inlet pipe (4) are provided with outlet pipes, the split shells (3) in mirror image distribution are jointly provided with heat exchange pipes (5) in circumferential array distribution, the heat exchange pipes (5) are externally fixed with fins (6) in circumferential array distribution, the inlet pipe (4) is fixed with a monitoring shell (7), the monitoring shell (7) is provided with a temperature monitoring mechanism (10) for monitoring the temperature of cooling water, the inlet pipe (4) is provided with a flow monitoring mechanism (11) for monitoring the flow of cooling water, and the heat exchange shell (2) is provided with a cleaning mechanism (12) for cleaning the impurities attached to the fins (6). The temperature monitoring mechanism (10) comprises a first sliding frame (1001) slidingly connected to the monitoring shell (7), and an expansion member (1002) arranged in the monitoring shell (7) and in contact with the first sliding frame (1001), wherein the expansion member (1002) is made of thermal expansion material. The inlet pipe (4) is fixed with a first fixed shell (1003) on one side close to the first sliding frame (1001), the first fixed shell (1003) is filled with liquid, the first fixed shell (1003) is slidingly connected with a first piston rod (1004), a spring is arranged between the first fixed shell (1003) and the first piston rod (1004), the first piston rod (1004) is fixed to the first sliding frame (1001), the inlet pipe (4) is fixed with a second fixed shell (1005) through a mounting frame, the second fixed shell (1005) is filled with liquid, the second fixed shell (1005) is communicated with the first fixed shell (1003) through a pipeline, and the second fixed shell (1005) is slidingly connected with a second piston rod (1006). The flow monitoring mechanism (11) comprises a monitoring frame (1101) rotationally connected to the inlet pipe (4), the inlet pipe (4) is slidingly connected with a sliding plate (1102) through a mounting rod, the inlet pipe (4) is rotationally connected with a first threaded rod (1103), the first threaded rod (1103) is threadedly connected with the sliding plate (1102), the inlet pipe (4) is fixed with a fixed block (1104), a button is arranged on the fixed block (1104), and the button on the fixed block (1104) is in extrusion cooperation with the sliding plate (1102). The water inlet pipe (4) is fixedly connected with a reduction gearbox (1105) through a mounting frame, an input shaft of the reduction gearbox (1105) is fixedly connected with the monitoring frame (1101), an output shaft of the reduction gearbox (1105) is fixedly connected with a first transmission wheel (1106), the first transmission wheel (1106) is a circular truncated cone, and the cross-sectional radius thereof gradually decreases from left to right, the water inlet pipe (4) is rotationally connected with a transmission rod (1107) through a mounting plate, the transmission rod (1107) and the first threaded rod (1103) are in transmission through a bevel gear set, the transmission rod (1107) is splinedly connected with a second transmission wheel (1108), the first transmission wheel (1106) and the second transmission wheel (1108) are in transmission cooperation, the second transmission wheel (1108) is rotationally connected with a first rotating frame (1109), the first rotating frame (1109) is fixedly connected with the second piston rod (1006). The cleaning mechanism (12) comprises a first motor (1201), and the first motor (1201) is electrically connected with the fixed block (1104).

2. The energy-saving tube fin heat exchanger according to claim 1, characterized in that: The side, close to the water inlet pipe (4), of the flow distribution shell (3) away from the water inlet pipe (4) is fixedly connected with a transfer shell (8), the transfer shell (8) is in contact with the heat exchange shell (2), the heat exchange pipes (5) in the circumferential array are all in contact with the transfer shell (8), the heat exchange shell (2) is rotationally connected with a dispersing plate (9), the dispersing plate (9) is provided with through holes in the circumferential array, the heat exchange pipes (5) in the circumferential array are collectively provided with a transmission frame (901), the flow distribution shell (3) away from the water inlet pipe (4) is fixedly connected with the transmission frame (901), and the dispersing plate (9) is fixedly connected with the transmission frame (901).

3. The energy-saving tube-fin heat exchanger according to claim 2, wherein: The radius of the through hole in the vertical direction of the dispersing plate (9) is greater than the farthest distance between the adjacent fins (6) and the adjacent heat exchange pipes (5) in the axial direction, so as to define a water flow channel.

4. The energy-saving tube-fin heat exchanger according to claim 3, wherein: The first motor (1201) is fixedly connected with the heat exchange shell (2) through a mounting frame, an output shaft of the first motor (1201) is fixedly connected with a second threaded rod (1202), the second threaded rod (1202) is threadedly connected with a second sliding frame (1203), the second sliding frame (1203) is provided with a second rotating frame (1204), the flow distribution shell (3) away from the water inlet pipe (4), the transfer shell (8) and the dispersing plate (9) are all in sliding connection with the second rotating frame (1204), a third sliding frame (1205) is fixedly connected to the side, close to the water inlet pipe (4), of the second rotating frame (1204), a plurality of cleaning frames (1206) in the circumferential array are rotationally connected to the third sliding frame (1205), and the cleaning frames (1206) are in contact with the adjacent heat exchange pipes (5) and the adjacent fins (6) in the circumferential array.

5. The energy-saving tube-fin heat exchanger according to claim 4, wherein: Also include for adjusting the state of the heat exchange pipe (5) adjusting mechanism (13), the adjusting mechanism (13) is arranged on the rack (1), the adjusting mechanism (13) includes a second motor (1301), the second motor (1301) is fixedly connected to the rack (1), the output shaft of the second motor (1301) is provided with a gear, the fixed frame (1302) is fixedly connected to the shunt shell (3) away from the water inlet pipe (4), the fixed frame (1302) is provided with a gear ring, the gear ring on the fixed frame (1302) is engaged with the gear on the output shaft of the second motor (1301), the mirror image distribution of the shunt shell (3) is rotatably connected with the heat exchange shell (2), the mirror image distribution of the shunt shell (3) is rotatably connected with the heat exchange pipe (5) which is arranged in the circumferential direction, the heat exchange pipe (5) which is arranged in the circumferential direction is rotatably connected with the transmission frame (901), the second sliding frame (1203) is rotatably connected with the second rotating frame (1204), the water inlet pipe (4) is rotatably connected with the adjacent shunt shell (3), and the shunt shell (3) away from the water inlet pipe (4) is rotatably connected with the water outlet pipe thereon.

6. The energy saving tube fin heat exchanger according to claim 5, wherein: The water inlet pipe (4) is fixedly connected with a fixed plate (1303), the fixed plate (1303) is rotatably connected with the shunt shell (3) close to the water inlet pipe (4), and the side of the fixed plate (1303) away from the water inlet pipe (4) is fixedly connected with a transmission gear ring (1304) through a mounting frame, the gear ring (1304) is rotatably connected with the heat exchange pipe (5) which is arranged in the circumferential direction, and the gear on the heat exchange pipe (5) which is arranged in the circumferential direction is engaged with the transmission gear ring (1304).

Images