Energy-saving finned tube heat exchanger

Abstract

The invention belongs to the technical field of finned tube heat exchangers, and particularly discloses an energy-saving type tube fin heat exchanger. Comprising a machine frame, the machine frame is fixedly connected with a heat exchange shell, the heat exchange shell communicates with circulating pipes distributed in a mirror image mode, flow dividing shells distributed in a mirror image mode are arranged in the heat exchange shell, the flow dividing shell on one side is provided with a water inlet pipe, and the flow dividing shells distributed in the mirror image mode are jointly provided with heat exchange pipes distributed in a circumferential array mode. Fins distributed in an array mode in the circumferential direction are fixedly connected to the exterior of the heat exchange pipe, and the water inlet pipe is fixedly connected with a monitoring shell. According to the device, the temperature of high-temperature cooling water injected into the device is monitored through the monitoring shell, and the adhesion amount of solid impurities in unit time is judged according to the temperature and the flow of the high-temperature cooling water, so that the solid impurities on the heat exchange pipes and the fins influence heat exchange between the high-temperature cooling water and seawater to be accurately and timely cleaned; and the stability of the heat exchange effect of the device on the high-temperature cooling water is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of fin-tube heat exchangers, and mainly mentions an energy-saving tube-fin heat exchanger. Background Art

[0002] A tube-fin heat exchanger is a device that enhances heat transfer efficiency by expanding the heat transfer surface (fins). It is mainly composed of a heat transfer base tube, fins, and a support frame. It is widely used in industrial scenarios where efficient heat transfer is required and space is limited. It occupies an important position in refrigeration and air conditioning, automotive thermal management, chemical processes, and energy systems. Dust or chemical pollutants are easily accumulated on the outside of the fins and base tubes, reducing heat transfer efficiency. Taking the application of tube-fin heat exchangers in gas turbine heat recovery systems as an example, when seawater and cooling water are exchanging heat, the seawater heats up and the cooling water cools down. The rising temperature of the seawater will cause the dissolved solid impurities in it to precipitate and adhere to the fin tubes. As the amount of attachment increases, It will gradually increase and will affect the heat exchange efficiency between seawater and high-temperature cooling water. If there are too many impurities attached (excessively affecting the heat exchange efficiency), it needs to be cleaned in time. The heat generation of the engine group is related to its sailing speed and load. The heat generation increases, and the high-temperature cooling water temperature will change synchronously with the heat generation of the engine group. The changing high-temperature cooling water temperature causes the number of impurities attached to the fin tubes per unit time to be different, making it difficult to judge the amount of impurities attached to the fin tubes, and then it is difficult to judge the frequency and time of cleaning the fin tubes. If it is not cleaned in time, it will affect the heat exchange effect of the fin tubes. If it is cleaned blindly, it will lead to a waste of resources. Summary of the Invention

[0003] In order to overcome the disadvantage that changes in cooling water temperature will cause fluctuations in the amount of impurities attached to the fin tubes per unit time, affecting the judgment of when the fin tubes need to be cleaned, and thus affecting the heat exchange effect of the fin tubes, the present invention provides an energy-saving seamless titanium fin tube for a ship heat exchange unit that can be accurately judged.

[0004] The technical solution is: an energy-saving tube-fin heat exchanger, comprising a frame, the frame is fixedly connected to a heat exchange shell, the heat exchange shell is connected to a mirror-distributed circulation pipe, the heat exchange shell is provided with a mirror-distributed diverter shell, the diverter shell on one side is provided with a water inlet pipe, the water inlet pipe is fixed to the frame through a mounting frame, the diverter shell away from the water inlet pipe is provided with a water outlet pipe, the mirror-distributed diverter shells are commonly provided with heat exchange tubes distributed in a circumferential array, the heat exchange tubes are fixedly connected to the outside of the circumferentially distributed fins, the water inlet pipe is fixedly connected to a monitoring shell, the monitoring shell is provided with a temperature monitoring mechanism for monitoring the cooling water temperature, the water inlet pipe is provided with a flow monitoring mechanism for monitoring the cooling water flow, and the heat exchange shell is provided with a cleaning mechanism for cleaning impurities attached to the fins.

[0005] As a further preferred solution, a transfer shell is fixedly connected to the side of the diverter shell away from the water inlet pipe close to the water inlet pipe, the transfer shell is in contact with the heat exchange shell, the heat exchange tubes distributed in a circumferential array are all in contact with the transfer shell, the heat exchange shell is rotatably connected to a dispersion plate, the dispersion plate is provided with through holes distributed in a circumferential array, the heat exchange tubes distributed in the circumferential array are jointly provided with a transmission frame, the diverter shell away from the water inlet pipe is fixed to the transmission frame, and the dispersion plate is fixed to the transmission frame.

[0006] As a further preferred solution, the radius of the through holes on the dispersion plate is greater than the maximum distance between adjacent fins and adjacent heat exchange tube axes in the vertical direction, so as to limit the flow path of seawater.

[0007] As a further preferred solution, the temperature monitoring mechanism includes a first sliding frame, which is slidably connected to the monitoring shell. An expansion member is provided in the monitoring shell, which contacts and cooperates with the first sliding frame and is made of thermal expansion material.

[0008] As a further preferred solution, the water inlet pipe is fixedly connected to a first fixed shell on one side close to the first sliding frame, liquid is filled in the first fixed shell, the first fixed shell is slidably connected to a first piston rod, a spring is provided between the first fixed shell and the first piston rod, the first piston rod is fixed to the first sliding frame, the water inlet pipe is fixedly connected to a second fixed shell through a mounting frame, liquid is filled in the second fixed shell, the second fixed shell is connected to the first fixed shell through a pipe, and the second fixed shell is slidably connected to the second piston rod.

[0009] As a further preferred solution, the flow monitoring mechanism includes a monitoring frame, which is rotatably connected to the water inlet pipe, and the water inlet pipe is slidably connected to a sliding plate through a mounting rod. The water inlet pipe is rotatably connected to a first threaded rod, and the first threaded rod is threadedly connected to the sliding plate. A fixed block is fixed to the water inlet pipe, and a button is provided on the fixed block, and the button on the fixed block is squeezed and fitted with the sliding plate.

[0010] As a further preferred solution, a reduction gear box is fixedly connected to the water inlet pipe through a mounting frame, the input shaft of the reduction gear box is fixedly connected to the monitoring frame, the output shaft of the reduction gear box is fixedly connected to the first transmission wheel, the water inlet pipe is rotatably connected to a transmission rod through a mounting plate, the transmission rod and the first threaded rod are transmitted through a bevel gear set, the transmission rod is splined to the second transmission wheel, the first transmission wheel and the second transmission wheel are in transmission cooperation, the second transmission wheel is rotatably connected to the first rotating frame, and the first rotating frame is fixed to the second piston rod.

[0011] As a further preferred solution, the cleaning mechanism includes a first motor, which is fixed to the heat exchange shell through a mounting bracket, the first motor is electrically connected to the button on the fixed block, the output shaft of the first motor is fixed to a second threaded rod, the second threaded rod is threadedly connected to a second sliding bracket, the second sliding bracket is provided with a second rotating bracket, the diversion shell, the intermediate shell and the dispersion plate away from the water inlet pipe are all slidingly connected to the second rotating bracket, the side of the second rotating bracket close to the water inlet pipe is fixed to a third sliding bracket, and a cleaning frame distributed in a circumferential array is rotatably connected to the third sliding bracket, and the cleaning frame is in contact with the adjacent heat exchange tubes and the adjacent and circumferentially arrayed fins.

[0012] As a further preferred solution, it also includes an adjustment mechanism for adjusting the state of the heat exchange tube, the adjustment mechanism is arranged on the frame, the adjustment mechanism includes a second motor, the second motor is fixed to the frame, a gear is provided on the output shaft of the second motor, a fixed frame is fixed to the diverter shell away from the water inlet pipe, a gear ring is provided on the fixed frame, the gear ring on the fixed frame is engaged with the gear on the output shaft of the second motor, the mirror-distributed diverter shells are all rotatably connected to the heat exchange shells, the mirror-distributed diverter shells are all rotatably connected to the heat exchange tubes distributed in a circumferential array, the heat exchange tubes distributed in a circumferential array are all rotatably connected to the transmission frame, the second sliding frame is rotatably connected to the second rotating frame, the water inlet pipe is rotatably connected to the adjacent diverter shell, and the diverter shell away from the water inlet pipe is rotatably connected to the water outlet pipe above it.

[0013] As a further preferred solution, the water inlet pipe is fixed with a fixed plate, and the fixed plate is rotatably connected to the diversion shell close to the water inlet pipe. The side of the fixed plate away from the water inlet pipe is fixed with a transmission gear ring through a mounting bracket, and the heat exchange tubes distributed in a circumferential array are all provided with gears, and the gears on the heat exchange tubes distributed in a circumferential array are all engaged with the transmission gear ring.

[0014] Compared with the prior art, the present invention has the following advantages: the present 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 attached per unit time based on the temperature and flow rate of the high-temperature cooling water, so that the solid impurities on the heat exchange tubes and fins that affect the heat exchange between the high-temperature cooling water and seawater can be accurately and timely cleaned, thereby 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 can flow in a spiral along the fins during the heat exchange process without affecting the heat exchange area and exchange heat with the high-temperature cooling water in the heat exchange tubes, thereby ensuring the high-temperature cooling water and seawater The flow rate difference improves the heat exchange efficiency between the high-temperature cooling water and the seawater; the cleaning frame cooperates with the fins to clean the debris attached to the adjacent heat exchange tubes and fins, so that the heat exchange efficiency between the high-temperature cooling water and the seawater is always maintained at a stable level, thereby improving the practicality of the device; the transmission gear ring is engaged with the gears on the circumferentially arrayed heat exchange tubes, so that the circumferentially arrayed heat exchange tubes will rotate while revolving during the heat exchange process, providing a circumferential flow rate difference between the high-temperature cooling water and the seawater, thereby improving the heat exchange efficiency, and the rotation of the heat exchange tubes will also cause the high-temperature cooling water inside to rotate, thereby improving the uniformity of the heat exchange between the seawater and the cooling water. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural diagram of the internal structure of the frame of the present invention; Figure 3 Schematic diagram of the three-dimensional structure of the matching relationship between the heat exchange tube and the fin of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the internal structure of the water inlet pipe of the present invention; Figure 5 A three-dimensional structural cross-sectional view of the cooperation relationship between the heat exchange tube and the intermediate transfer shell of the present invention; Figure 6 It is a sectional view of the three-dimensional structure of the temperature monitoring mechanism of the present invention; Figure 7 Schematic diagram of the three-dimensional structure of the flow monitoring mechanism of the present invention; Figure 8 It is a three-dimensional structural cross-sectional view of the cleaning mechanism of the present invention; Figure 9 Schematic diagram of the three-dimensional structure of the cooperation relationship between the third sliding frame and the cleaning frame of the present invention; Figure 10 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the present invention.

[0016] Among them: 1-frame, 2-heat exchange shell, 3-diversion shell, 4-water 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 member, 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 DESCRIPTION

[0017] The present invention will be further described below with reference to specific embodiments. It should be noted that, unless otherwise specified or limited, terms such as "dispose," "install," and "connect" should be understood in a broad sense. For example, these terms may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention.

[0018] Example 1: An energy-saving tube-fin heat exchanger, see Figure 1-Figure 5, including a frame 1, the frame 1 is fixed with a heat exchange shell 2, the heat exchange shell 2 is connected with two flow pipes distributed in left and right mirror images, and the flow pipes and the heat exchange shell 2 are connected in a circumferential array to ensure uniform water injection and limit its flow direction. The left and right sides of the inner wall of the heat exchange shell 2 are provided with a diversion shell 3, and the two diversion shells 3 are distributed in a mirror image. The left diversion shell 3 is provided with an inlet pipe 4, which is fixed to the frame 1 through a mounting frame. The right side of the right diversion shell 3 is provided with an outlet pipe. The two diversion shells 3 are jointly provided with six heat exchange tubes 5 distributed in a circumferential array. The outer side of the heat exchange tube 5 is fixed with a circumferentially arrayed fin 6. The fin 6 is used to increase the heat exchange area of the heat exchange tube 5, thereby increasing its heat exchange efficiency. The pitch angle of the fin 6 is small, thereby reducing the obstruction of seawater. The water inlet pipe 4 is fixed with a monitoring shell 7. The left side of the right diversion shell 3 is fixed with a transfer shell 8. 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 distributed in a circumferential array, and the six through holes on the dispersion plate 9 correspond one to one to the six heat exchange tubes 5. The radius of the through holes on the dispersion plate 9 is greater than the maximum distance between the axes of adjacent fins 6 and adjacent heat exchange tubes 5 in the vertical direction, which is used to limit the flow channel of seawater. The seawater flows to the outside of the heat exchange tube 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 diverter shell 3 is fixed to the transmission frame 901, and the dispersion plate 9 is fixed to the transmission frame 901. A temperature monitoring mechanism 10 for monitoring the cooling water temperature is provided on the monitoring shell 7, and a flow monitoring mechanism 11 for monitoring the cooling water flow is provided on the water inlet pipe 4. A cleaning mechanism 12 for cleaning impurities attached to the fins 6 is provided on the heat exchange shell 2.

[0019] 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 shell 7. The inner side of the monitoring shell 7 is provided with an expansion member 1002 that contacts and cooperates with the first sliding frame 1001. The expansion member 1002 is a thermal expansion material and is used to monitor the temperature of the high-temperature cooling water in the water inlet pipe 4. The upper side of the water inlet pipe 4 is fixedly connected to a first fixed shell 1003, and the first fixed shell 1003 is filled with hydraulic oil. The first fixed shell 1003 is sealed and slidably connected to the first piston rod 1004, and a spring is provided between the two. The first piston rod 1004 is fixed to the first sliding frame 1001, and the water inlet pipe 4 is fixedly connected to the second fixed shell 1005 through the mounting frame. The second fixed shell 1005 is filled with hydraulic oil. The second fixed shell 1005 is connected to the first fixed shell 1003 through a pipeline, and the second fixed shell 1005 is sealed and slidably connected to the second piston rod 1006.

[0020] 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 distributed in a circumferential array. The cylindrical rod part of the monitoring frame 1101 is rotatably connected to the water inlet pipe 4. The four fan blades of the monitoring frame 1101 are all located on the inner side of the water inlet pipe 4 for real-time monitoring of its flow rate. The upper side of the water inlet pipe 4 is slidably connected to a sliding plate 1102 through a mounting rod. The upper side of the water inlet pipe 4 is rotatably connected to a first threaded rod 1103 threadedly connected to the sliding plate 1102. A fixed block 1104 is fixed to the upper side of the water inlet pipe 4. A button is provided on the fixed block 1104 for extrusion fit with the lower side of the sliding plate 1102. A reduction gearbox 1105 is fixed to the upper side of the water inlet pipe 4 through the mounting frame. The input of the reduction gearbox 1105 The shaft is fixedly connected to the cylindrical rod part of the monitoring frame 1101, and the output shaft of the reduction gear 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 transmitted through a bevel gear set, and the bevel gear set can freely switch between the transmission state (engagement) and the non-transmission state (loss of engagement). The transmission rod 1107 is spline-connected to the second transmission wheel 1108. The first transmission wheel 1106 and the second transmission wheel 1108 are transmitted in a manner of extrusion friction. The left side of the second transmission wheel 1108 is rotatably connected to the first rotating frame 1109 fixed to the second piston rod 1006.

[0021] Please refer to 5. Figure 8 and Figure 9 The cleaning mechanism 12 includes a first motor 1201 electrically connected to the button on the fixed block 1104. The first motor 1201 is fixed to the right side of the heat exchange shell 2 through the mounting bracket. The output shaft of the first motor 1201 is fixedly connected to the second threaded rod 1202. The second threaded rod 1202 is threadedly connected to the second sliding bracket 1203. The second sliding bracket 1203 is provided with a second rotating bracket 1204. The diverter shell 3, the intermediate shell 8 and the dispersion plate 9 on the right side are all slidably connected to the second rotating bracket 1204. The left side of the second rotating bracket 1204 is fixedly connected to the second rotating bracket 1204. There are three sliding racks 1205. The third sliding rack 1205 is located on the inner side of the heat exchange shell 2. The third sliding rack 1205 is composed of round rods and circular rings distributed in a circumferential array, and the round rods and circular rings distributed in a circumferential array are staggered. The circular ring parts distributed in the circumferential array on the third sliding rack 1205 are all rotatably connected to a cleaning frame 1206. The cleaning frame 1206 is hollow to prevent it from affecting the flow of seawater. The cleaning frame 1206 is in contact with the adjacent heat exchange tubes 5 and the adjacent and circumferentially arrayed fins 6.

[0022] When it is necessary to use this device to cool the cooling water of the ship's engine group, the user first connects the water inlet pipe 4 to the cooling water output end, and connects the water outlet pipe on the right diversion shell 3 to the cooling water input end. 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 connects the flow pipe on the left side of the heat exchange shell 2 to the input end of the external seawater purification equipment. At this time, the installation of this device is completed.

[0023] When the ship is sailing, the high-temperature cooling water after cooling its engine unit is injected into the left diversion shell 3 through the water inlet pipe 4. At this time, the user injects seawater into the heat exchange shell 2 through the circulation pipe on the right side of the heat exchange shell 2 through the external seawater supply device. The high-temperature cooling water in the diversion shell 3 is dispersed therein and flows into the six heat exchange tubes 5 respectively and continues to flow to the right. After the right connecting pipe of the heat exchange shell 2 injects seawater into it, 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. In 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 (that is, cools the high-temperature cooling water). The seawater after heat exchange continues to move to the left and flows into the external seawater purification equipment through the circulation pipe on the left side of the heat exchange shell 2. The cooling water after heat exchange flows back to the cooling system of the engine unit through the outlet pipe on the right diversion shell 3 and cools the engine unit again.

[0024] During the heat exchange process between the high-temperature cooling water and the seawater, the seawater moves to the left and contacts the fin 6. Taking the fin 6 on a heat exchange tube 5 as an example, since the pitch angle of the fin 6 is relatively large, the seawater will not be excessively blocked by the fin 6 during the movement to the left, thereby causing the seawater to move to the outside of the fin 6. By limiting the shape and arrangement of the fin 6, the seawater can flow in a spiral along the fin 6 during the heat exchange process without affecting the heat exchange area and exchange heat with the high-temperature cooling water in the heat exchange tube 5, thereby ensuring the flow rate difference between the high-temperature cooling water and the seawater and improving the heat exchange efficiency between the high-temperature cooling water and the seawater.

[0025] After the high-temperature cooling water enters the water inlet pipe 4, the expansion member 1002 in the monitoring shell 7 expands due to the increase in temperature. The expansion member 1002 drives the first sliding frame 1001 to move upward, and the first sliding frame 1001 drives the first piston rod 1004 to move upward and squeezes the spring between the first piston rod 1004 and the first fixed shell 1003. The hydraulic oil in the first fixed shell 1003 is squeezed and flows through the pipeline into the second fixed shell 1005. The hydraulic oil squeezes and drives the second piston rod 1006 to move leftward, and the second piston rod 1006 drives the first rotating frame 1109 to move leftward. The first rotating frame 1109 drives the second transmission wheel 1108 to move leftward, thereby increasing the transmission ratio between the second transmission wheel 1108 and the first transmission wheel 1106 (that is, the cooling water temperature is proportional to the transmission ratio between the second transmission wheel 1108 and the first transmission wheel 1106).

[0026] After the high-temperature cooling water enters the water inlet pipe 4, the cooling water drives the monitoring frame 1101 to rotate, and 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, and 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 gradually move downward in a threaded manner. As the sliding plate 1102 gradually moves downward , the heat exchange capacity of the heat exchange tubes 5 and fins 6 in the heat exchange shell 2 to the high-temperature cooling water and seawater gradually increases. During the heat exchange process, the temperature of the high-temperature cooling water is transferred to the seawater through the heat exchange tubes 5 and fins 6. After the seawater is heated, the solubility of the soluble solid impurities in it will gradually decrease, and the precipitated solid impurities will gradually adhere to the surface of the heat exchange tubes 5 and fins 6, thereby affecting their thermal conductivity, and further affecting the heat exchange efficiency between the high-temperature cooling water and seawater (that is, the cooling water temperature is proportional to the amount of impurities attached to the surface of the heat exchange tubes 5 and fins 6 per unit time). If the cooling water temperature rises, it can be seen from the above that the downward movement speed of the sliding plate 1102 will be accelerated.

[0027] During the downward movement of the 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 means that the solid impurities accumulated in the heat exchange shell 2 are sufficient to affect the heat exchange efficiency of the high-temperature cooling water and seawater. As the sliding plate 1102 gradually moves downward, the sliding plate 1102 presses the button on the upper side of the fixed block 1104 downward. 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 rightward with the thread. The second rotating frame 1203 and the second rotating frame 1204 move rightward with the thread. 04 drives the third sliding frame 1205 and the six cleaning frames 1206 thereon to 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 arrayed fins 6 and rotates, and continues to move to the right to clean the impurities on the surface of the circumferentially distributed fins 6 and the heat exchange tube 5, thereby preventing the impurities attached to the surface of the circumferentially distributed fins 6 and the heat exchange tube 5 from affecting the heat exchange efficiency. When the third sliding frame 1205 and the six cleaning frames 1206 thereon move to the right to the right end of the fin 6, the user controls the first motor 1201 to reverse, and the output shaft of the first motor 1201 rotates. The first threaded rod 1103 is driven to reverse, thereby driving the third sliding frame 1205 and the six cleaning frames 1206 thereon to move to the left and reset. During the reset process, the cleaning frames 1206 will also clean the impurities on the adjacent heat exchange tubes 5 and the adjacent fins 6. Until the reset is completed, the user stops the first motor 1201, and then the user switches the bevel gear set between the transmission rod 1107 and the first threaded rod 1103 to a 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 again. It switches to the transmission state, and then continues to exchange heat between the high-temperature cooling water and seawater. The cleaning frame 1206 cooperates with the fins 6 to clean the impurities attached to the adjacent heat exchange tubes 5 and fins 6, so that the heat exchange efficiency between the high-temperature cooling water and seawater is always maintained stable, thereby improving the practicality of the device. The temperature of the high-temperature cooling water injected into the device is monitored by the monitoring shell 7, and the amount of solid impurities attached per unit time is judged according to the high-temperature cooling water temperature and its flow rate, so that the solid impurities on the heat exchange tubes 5 and fins 6 that affect the heat exchange between the high-temperature cooling water and seawater are accurately and timely cleaned, thereby ensuring the stability of the heat exchange effect of the device on the high-temperature cooling water.

[0028] The user repeats the above steps to exchange heat with the high-temperature cooling water until the high-temperature cooling water is cooled down. That is, after the ship engine unit stops working (the ship is docked) for a period of time, the user stops injecting seawater into the heat exchange shell 2. At this time, the use of the device is completed.

[0029] In Example 1, the two diversion shells 3 are fixedly connected to the heat exchange shell 2, the two diversion shells 3 are fixedly connected to and communicated with 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 communicated with the left diversion shell 3, and the right diversion shell 3 is fixedly connected to and communicated with the upper water outlet pipe.

[0030] In Example 2, the two diverter shells 3 are both rotatably connected to the heat exchange shell 2, the two diverter shells 3 are both rotatably connected to the six heat exchange tubes 5, the six heat exchange tubes 5 are both 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 diverter shell 3, and the right diverter shell 3 is rotatably connected to its upper water outlet pipe.

[0031] Example 2: Based on Example 1, please refer to Figure 2 and Figures 8-10 , also includes an adjustment mechanism 13 for adjusting the state of the heat exchange tube 5, the adjustment mechanism 13 is arranged on the frame 1, the adjustment mechanism 13 includes a second motor 1301, the second motor 1301 is fixedly connected to the frame 1, a gear is provided on the output shaft of the second motor 1301, and the right side of the right diverter shell 3 is fixedly connected to a fixed frame 1302 with a gear ring on the outside, the gear ring on the fixed frame 1302 is engaged with the gear on the output shaft of the second motor 1301, the left and right diverter shells 3 are both rotatably connected to the heat exchange shell 2, and the left and right diverter shells 3 are It is rotatably connected to the heat exchange tubes 5 distributed in a circumferential array, and 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 diverter shell 3. The diverter shell 3 on the right is rotatably connected to the water outlet pipe on the right side. The right side of the water inlet pipe 4 is fixed with a fixed plate 1303 rotatably connected to the left diverter shell 3. The right side of the fixed plate 1303 is fixed with a transmission gear ring 1304 through a mounting frame. Gears meshing with the transmission gear ring 1304 are provided on the six heat exchange tubes 5.

[0032] During the operation of this device, the user starts the second motor 1301, and 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 intermediate shell 8, the dispersion plate 9, the six heat exchange tubes 5 and their upper fins 6 and the left diversion shell 3 to rotate together, so that the six heat exchange tubes 5 and their upper fins 6 move in the heat exchange shell 2, thereby increasing the flow rate difference between the high-temperature cooling water and seawater in the six heat exchange tubes 5 in the circumferential direction, thereby improving the heat exchange efficiency between seawater and high-temperature cooling water.

[0033] When the six heat exchange tubes 5 rotate, the gears on the six heat exchange tubes 5 are all engaged with the transmission gear ring 1304, driving the six heat exchange tubes 5 and their upper fins 6 to rotate, thereby reducing the probability of solid impurities adhering to the heat exchange process. Taking one heat exchange tube 5 and its upper fin 6 as an example, during the rotation of the heat exchange tube 5, the transmission gear ring 1304 engages with the gears on the circumferentially arrayed heat exchange tubes 5, causing the circumferentially arrayed heat exchange tubes 5 to rotate while revolving during the heat exchange process, providing a circumferential flow velocity difference between the high-temperature cooling water and 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 seawater and cooling water. When the device stops exchanging heat with the cooling water, the user controls the second motor 1301 to drive the intermediate shell 8, the dispersion plate 9, the six heat exchange tubes 5 and their upper fins 6, and the left diversion shell 3 to reset together. The user then turns off the second motor 1301, and the use of the device is now complete.

[0034] The technical principles of the embodiments of the present invention have been described above in conjunction with specific embodiments. These descriptions are intended solely to explain the principles of the embodiments of the present invention and should not be construed in any way as limiting the scope of protection of the embodiments of the present invention. Based on the explanations herein, those skilled in the art will be able to conceive of other specific implementations of the embodiments of the present invention without inventive effort, and such implementations will fall within the scope of protection of the embodiments of the present invention.

Claims

1. An energy-saving tube-fin heat exchanger, characterized in that: The invention comprises a frame (1), wherein the frame (1) is fixedly connected to a heat exchange shell (2), the heat exchange shell (2) is connected to a flow pipe distributed in a mirror image, a flow diversion shell (3) distributed in a mirror image is provided in the heat exchange shell (2), the flow diversion shell (3) on one side is provided with a water inlet pipe (4), the water inlet pipe (4) is fixedly connected to the frame (1) through a mounting frame, the flow diversion shell (3) away from the water inlet pipe (4) is provided with a water outlet pipe, and the flow diversion shells (3) distributed in a mirror image are jointly provided with The heat exchange tubes (5) are arranged in a circumferential array, and the heat exchange tubes (5) are fixedly connected to the outside of the heat exchange tubes (5) with fins (6) arranged in a circumferential array. The water inlet pipe (4) is fixedly connected to a monitoring shell (7), and the monitoring shell (7) is provided with a temperature monitoring mechanism (10) for monitoring the temperature of the cooling water. The water inlet pipe (4) is provided with a flow monitoring mechanism (11) for monitoring the flow of the cooling water. The heat exchange shell (2) is provided with a cleaning mechanism (12) for cleaning impurities attached to the fins (6).

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

3. The energy-saving tube-fin heat exchanger according to claim 2, characterized in that: The radius of the through hole on the dispersion plate (9) is greater than the maximum distance between the axes of the adjacent fins (6) and the adjacent heat exchange tubes (5) in the vertical direction, and is used to limit the flow path of the water flow.

4. The energy-saving tube-fin heat exchanger according to claim 2, characterized in that: The temperature monitoring mechanism (10) comprises a first sliding frame (1001), the first sliding frame (1001) is slidably connected to the monitoring shell (7), an expansion member (1002) is provided in the monitoring shell (7), the expansion member (1002) is in contact with the first sliding frame (1001), and the expansion member (1002) is a thermal expansion material.

5. The energy-saving tube-fin heat exchanger according to claim 4, characterized in that: A first fixed shell (1003) is fixedly connected to a side of the water inlet pipe (4) close to the first sliding frame (1001), the first fixed shell (1003) is filled with liquid, the first fixed shell (1003) is slidably connected to a first piston rod (1004), a spring is provided between the first fixed shell (1003) and the first piston rod (1004), the first piston rod (1004) is fixedly connected to the first sliding frame (1001), the water inlet pipe (4) is fixedly connected to a second fixed shell (1005) through a mounting frame, the second fixed shell (1005) is filled with liquid, the second fixed shell (1005) and the first fixed shell (1003) are connected via a pipeline, and the second fixed shell (1005) is slidably connected to a second piston rod (1006).

6. The energy-saving tube-fin heat exchanger according to claim 5, characterized in that: The flow monitoring mechanism (11) comprises a monitoring frame (1101), the monitoring frame (1101) is rotatably connected to the water inlet pipe (4), the water inlet pipe (4) is slidably connected to a sliding plate (1102) via a mounting rod, the water inlet pipe (4) is rotatably connected to a first threaded rod (1103), the first threaded rod (1103) is threadedly connected to the sliding plate (1102), a fixing block (1104) is fixed to the water inlet pipe (4), a button is provided on the fixing block (1104), and the button on the fixing block (1104) is squeeze-fitted with the sliding plate (1102).

7. The energy-saving tube-fin heat exchanger according to claim 6, characterized in that: The water inlet pipe (4) is fixedly connected to a reduction gearbox (1105) via a mounting frame, the input shaft of the reduction gearbox (1105) is fixedly connected to the monitoring frame (1101), the output shaft of the reduction gearbox (1105) is fixedly connected to a first transmission wheel (1106), the water inlet pipe (4) is rotatably connected to a transmission rod (1107) via a mounting plate, the transmission rod (1107) and the first threaded rod (1103) are driven via a bevel gear set, the transmission rod (1107) is spline-connected to 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 rotatably connected to a first rotating frame (1109), and the first rotating frame (1109) is fixedly connected to the second piston rod (1006).

8. The energy-saving tube-fin heat exchanger according to claim 7, characterized in that: The cleaning mechanism (12) includes a first motor (1201), the first motor (1201) is fixed to the heat exchange shell (2) through a mounting frame, the first motor (1201) is electrically connected to a button on the fixed block (1104), the output shaft of the first motor (1201) is fixed to a second threaded rod (1202), the second threaded rod (1202) is threadedly connected to a second sliding frame (1203), and the second sliding frame (1203) is provided with a second rotating frame (1204) away from the The diversion shell (3), the intermediate shell (8) and the dispersion plate (9) of the water inlet pipe (4) are all slidably connected to the second rotating frame (1204); a third sliding frame (1205) is fixedly connected to the side of the second rotating frame (1204) close to the water inlet pipe (4); a cleaning frame (1206) distributed in a circumferential array is rotatably connected to the third sliding frame (1205); the cleaning frame (1206) is in contact with the adjacent heat exchange tube (5) and the adjacent fins (6) distributed in a circumferential array.

9. The energy-saving tube-fin heat exchanger according to claim 8, characterized in that: The heat exchange tube (5) is further provided with an adjusting mechanism (13) for adjusting the state of the heat exchange tube (5), the adjusting mechanism (13) being arranged on the frame (1), the adjusting mechanism (13) comprising a second motor (1301), the second motor (1301) being fixedly connected to the frame (1), a gear being arranged on the output shaft of the second motor (1301), a fixed frame (1302) being fixedly connected to the diversion shell (3) away from the water inlet pipe (4), a gear ring being arranged on the fixed frame (1302), and the gear ring on the fixed frame (1302) and the second motor ( 1301) The gears on the output shaft are engaged, the mirror-distributed diverter shells (3) are all rotatably connected to the heat exchange shell (2), the mirror-distributed diverter shells (3) are all rotatably connected to the heat exchange tubes (5) distributed in a circumferential array, the heat exchange tubes (5) distributed in a circumferential array are all 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 diverter shell (3), and the diverter shell (3) away from the water inlet pipe (4) is rotatably connected to the water outlet pipe on it.

10. The energy-saving tube-fin heat exchanger according to claim 9, characterized in that: The water inlet pipe (4) is fixedly connected to a fixed plate (1303), the fixed plate (1303) is rotatably connected to the diversion shell (3) close to the water inlet pipe (4), and a transmission gear ring (1304) is fixedly connected to the side of the fixed plate (1303) away from the water inlet pipe (4) through a mounting frame, and the heat exchange tubes (5) distributed in a circumferential array are all provided with gears, and the gears on the heat exchange tubes (5) distributed in the circumferential array are all engaged with the transmission gear ring (1304).

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