A portable heat exchanger with circulating filter oil function

Abstract

This invention discloses a portable heat exchanger with a circulating oil filtration function, belonging to the field of heat exchanger technology. The invention includes a heat exchanger shell, a driving mechanism at one end of the shell, a condensing mechanism slidably mounted on the shell, a tube bundle inside the shell, a conical slider slidably mounted on the tube bundle, an oil scraper ring rotatably mounted on the outside of the slider, and several herringbone-shaped scrapers evenly distributed on the scraper ring, with each scraper contacting the inner wall of the shell. The tube bundle is connected to an inlet pipe and an outlet pipe at both ends, and the shell is connected to an inlet pipe and an outlet pipe. By simply energizing a servo motor, the heat exchanger does not need to be connected to a system with a circulating hot or cold medium, making it suitable for temporary use or in locations with limited space, achieving portability and ease of movement.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger technology, specifically to a lightweight heat exchanger with a function of circulating and filtering oil sludge. Background Technology

[0002] A heat exchanger, or heat exchanger, primarily transfers heat from a hot fluid to a cold fluid. Therefore, it can be used as a heater, cooler, condenser, or evaporator, playing a significant role in industrial production such as chemical, power, and food processing. During the heat exchange process, if the hot fluid contains oily particles, these particles will adhere to the tube bundle after cooling, causing the heat exchanger to generate its own heat and resulting in slow heat dissipation, thus affecting the heat exchange efficiency. Therefore, it is necessary to manually disassemble and clean it regularly.

[0003] Existing heat exchangers need to be connected to a system with a circulating hot and cold medium to work; otherwise, energy exchange is impossible. For temporary use of heat exchangers or locations with limited space, it is generally impossible to connect them to a complete circulation system. Therefore, existing heat exchangers are not portable enough and cannot be used in any location, which greatly limits their application. Summary of the Invention

[0004] The purpose of this invention is to provide a lightweight heat exchanger with a function of circulating and filtering oil sludge, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a lightweight heat exchanger with circulating oil filtration function, comprising a heat exchanger shell, a driving mechanism at one end of the heat exchanger shell, a condensing mechanism slidably mounted on the heat exchanger shell, a tube bundle inside the heat exchanger shell, a conical slider slidably mounted on the tube bundle, an oil scraper ring rotatably mounted on the outside of the conical slider, both ends of the conical slider being conical, and a plurality of herringbone scrapers evenly distributed on the oil scraper ring, the herringbone scrapers contacting the inner wall of the heat exchanger shell, a left concentrator and a right concentrator respectively connected to both ends of the tube bundle, an inlet pipe connected to the left concentrator, an outlet pipe connected to the right concentrator, and a flue gas inlet pipe and a flue gas outlet pipe connected to the heat exchanger shell. The flue gas to be heat exchanged enters the heat exchanger shell through the flue gas inlet pipe, is cooled by the tube bundle, and then discharged through the flue gas outlet pipe. During the cooling process of the flue gas, sludge and oil adhere to the tube bundle and the inner wall of the heat exchanger shell.

[0006] Furthermore, the condensation mechanism includes a left slip ring, a right slip ring, and a nut slider. The left and right slip rings are slidably fitted onto the heat exchanger housing and are connected to the nut slider. A pair of limiting shafts are symmetrically installed on the heat exchanger housing. A pair of lugs are provided on the left and right slip rings, and the lugs are slidably connected to the limiting shafts. The connection between the lugs and the limiting shafts provides auxiliary support and limitation for the left and right slip rings, allowing the condensation mechanism to slide smoothly on the heat exchanger housing.

[0007] Furthermore, the drive mechanism includes a servo motor, a worm gear, and a long toothed column. The servo motor is installed at one end of the heat exchanger housing. The worm gear is connected to the servo motor, and the long toothed column is coaxially connected to the worm gear, located on the side of the worm gear away from the servo motor. A compression pump is installed on the side of the heat exchanger housing away from the servo motor. The drive shaft of the compression pump is coaxially connected to the long toothed column. When the servo motor is energized, it drives the rotating worm gear and the long toothed column to rotate. The worm gear drives the worm wheel to rotate, and the worm wheel drives one of the first bevel gears or the second bevel gear to rotate through the linkage shaft. Subsequently, it drives the driven bevel gear to rotate. The driven bevel gear and the screw rotate simultaneously. The nut slider moves with the rotation of the screw. The left and right slip rings installed on the nut slider slide on the heat exchanger housing. The accompanying gear rotates under the drive of the long toothed column. Even though the accompanying gear moves synchronously with the left and right slip rings, the accompanying gear and the long toothed column can still slide and mesh. The compression pump starts to work under the drive of the long toothed column.

[0008] Furthermore, both the left and right slip rings are rotatably equipped with fan blade rings inside, and an accompanying gear is rotatably arranged between the left and right slip rings. The outer contours of the pair of fan blade rings are provided with tooth grooves, and the accompanying gear contacts the tooth grooves of the pair of fan blade rings. The accompanying gear meshes with a long tooth column for transmission. When the accompanying gear rotates, it drives the two fan blade rings in the left and right slip rings to rotate. The axial surfaces of the blades in the two fan blade rings face opposite directions, drawing air in from the middle of the left and right slip rings and blowing it out to both sides at the same time to cool the spiral heat dissipation pipe.

[0009] Furthermore, the drive mechanism includes a linkage shaft and a screw. The linkage shaft is rotatably mounted on one end of the heat exchanger housing. A worm gear is mounted on the linkage shaft, and the worm gear meshes with the worm for transmission. A first bevel gear and a second bevel gear are sleeved on the linkage shaft, and the first and second bevel gears are arranged opposite to each other. The screw is rotatably mounted on the heat exchanger housing and is threadedly connected to the nut slider. A driven bevel gear is coaxially mounted on the screw. When the first bevel gear drives the driven bevel gear to rotate, the screw drives the nut slider to move on the heat exchanger housing. After the condensing mechanism moves to its limit position on the heat exchanger housing, it touches the limit switch. The limit switch de-energizes the electromagnet near the inner retaining shaft and simultaneously energizes the electromagnet away from the inner retaining shaft, causing the inner retaining shaft to slide to the other end inside the linkage shaft under the influence of magnetic force.

[0010] Furthermore, limit switches (not shown in the figure) are provided on both sides of the heat exchanger shell. A pair of electromagnets are installed inside the linkage shaft, and an inner locking shaft is slidably arranged between the pair of electromagnets. The inner rings of the first and second bevel gears have locking grooves, and the linkage shaft has locking holes corresponding to the locking grooves. Protrusions are slidably arranged inside both ends of the inner locking shaft, and springs are arranged between the protrusions and the inner locking shaft. The limit switches and the pair of electromagnets are connected to a control system via a circuit. During the movement of the inner locking shaft, the protrusion at one end retracts into the inner locking hole. In the snap-fit ​​shaft, the protrusion disconnects the linkage shaft from the first bevel gear, allowing the first bevel gear to spin freely on the linkage shaft. The protrusion at the other end is pushed outward by the spring and springs into the snap-fit ​​groove of the second bevel gear, connecting the linkage shaft to the second bevel gear. The linkage shaft drives the second bevel gear to rotate. Although the first and second bevel gears rotate in the same direction, they mesh in opposite directions with the driven bevel gear. Therefore, the first and second bevel gears drive the driven bevel gear to rotate in opposite directions. The forward and reverse rotation of the screw drives the nut slider to move back and forth, i.e., the condensing mechanism slides back and forth on the heat exchanger shell.

[0011] Furthermore, spiral heat dissipation tubes are installed on the opposite sides of the left and right slip rings, and the two spiral heat dissipation tubes are connected in series. The compression port of the compressor pump is connected to the spiral heat dissipation tubes through a flexible pipe, and the suction port of the compressor pump is connected to the liquid outlet pipe through a pipe. An expansion valve is connected to the liquid inlet pipe, and the spiral heat dissipation tubes are connected to the expansion valve through a flexible pipe. The tube bundle is filled with condensate. The compressor pump extracts the heat-absorbing condensate from the tube bundle and pressurizes the condensate into the spiral heat dissipation tubes for cooling. The cooled condensate enters the expansion valve through the pipe. After passing through the expansion valve, the pressure of the condensate drops sharply, the temperature decreases, and it liquefies. The liquefied condensate absorbs heat from the flue gas and vaporizes after passing through the tube bundle, and then re-enters the compressor pump to complete the heat exchange cycle, thereby cooling the flue gas.

[0012] Furthermore, the fan blade ring inside the right slip ring is provided with several external magnets near the end of the left slip ring, and the inner ring of the oil scraper ring is provided with several pairs of internal magnets. When the fan blade ring in the right slip ring rotates rapidly, the several external magnets also rotate rapidly. The rapidly rotating external magnets attract the internal magnets, causing the oil scraper ring to rotate. When the external magnets move with the condensation mechanism, they drive the cone-shaped slider to move on the tube bundle through magnetic force. The cone-shaped slider scrapes off the oil on the tube bundle. During the rotation, the herringbone scraper on the oil scraper ring scrapes off and cleans the oil on the inner wall of the heat exchanger shell. When the cone-shaped slider moves to the limit position, the herringbone scraper scrapes the dirty oil into the shallow ring groove.

[0013] Furthermore, shallow annular grooves are provided at both ends inside the heat exchanger shell, and a drain pipe is connected to the bottom of each shallow annular groove. The inlet pipe and outlet pipe both pass through the inner wall of the heat exchanger shell to the interior. When oil enters the shallow annular groove, the oil flows into the drain pipe. As the oil level rises to the highest position of the drain pipe, the oil flows downward, causing a vacuum to appear at the highest position of the drain pipe. This quickly sucks out the oil from the shallow annular groove, achieving automatic cleaning of the oil and realizing the effect of circulating oil filtration.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0015] 1. The tube bundle is equivalent to an evaporator, and the fan blade ring and spiral heat dissipation tube are equivalent to a condenser. By integrating the condensation mechanism into the heat exchanger, only the servo motor needs to be powered on, so that the heat exchanger does not need to be connected to a system with a circulating hot and cold medium. It is suitable for temporary use of heat exchangers or locations with limited space, making the heat exchanger lightweight and portable.

[0016] 2. By setting up a drive mechanism, the fan blade ring not only cools the refrigerant, but also drives the oil scraper ring by installing an external magnet on it. The conical slider scrapes off the oil on the tube bundle, and the herringbone scraper on the oil scraper ring scrapes off the oil on the inner wall of the heat exchanger shell during rotation. When the conical slider moves to the limit position, the herringbone scraper scrapes the dirty oil into the shallow ring groove, avoiding the trouble of manual disassembly and cleaning, realizing automatic cleaning of oil and achieving the effect of circulating oil filtration. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall appearance structure of the present invention;

[0019] Figure 2 This is a side view of the present invention;

[0020] Figure 3 This is a partial internal structural diagram of the present invention;

[0021] Figure 4 This is a schematic diagram of the overall internal structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the spiral heat dissipation tube portion of the present invention;

[0023] Figure 6 This is a schematic diagram of the internal structure of the linkage shaft of the present invention;

[0024] Figure 7 This is a schematic diagram of the cone-shaped slider of the present invention;

[0025] Figure 8 This is a schematic diagram of the installation structure of the fan blade ring of the present invention;

[0026] In the diagram: 1. Heat exchanger shell; 201. Left slip ring; 202. Right slip ring; 203. Nut slider; 204. Lug; 3. Limiting shaft; 4. Long toothed column; 5. Accompanying gear; 6. Screw; 7. Fan blade ring; 8. Spiral heat dissipation tube; 9. External magnet; 101. Left concentrator disk; 102. Right concentrator disk; 11. Tube bundle; 12. Conical slider; 131. Oil scraper ring; 132. Herringbone pattern Scraper; 141. Smoke inlet pipe; 142. Smoke outlet pipe; 15. Servo motor; 161. Worm gear; 162. Worm wheel; 17. Compression pump; 181. Liquid inlet pipe; 182. Liquid outlet pipe; 19. Expansion valve; 20. Driven bevel gear; 211. First bevel gear; 212. Second bevel gear; 22. Linkage shaft; 23. Internal snap-fit ​​shaft; 24. Electromagnet; 25. Protrusion; 26. Sewage pipe. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1-8This invention provides a technical solution: a lightweight heat exchanger with circulating oil filtration function, comprising a heat exchanger shell 1, a driving mechanism at one end of the heat exchanger shell 1, a condensing mechanism slidably mounted on the heat exchanger shell 1, a tube bundle 11 inside the heat exchanger shell 1, a conical slider 12 slidably mounted on the tube bundle 11, an oil scraper ring 131 rotatably mounted on the outside of the conical slider 12, both ends of the conical slider 12 being conical, and a plurality of herringbone scrapers 132 evenly distributed on the oil scraper ring 131. The tube bundle 11 is in contact with the inner wall of the heat exchanger shell 1. The two ends of the tube bundle 11 are respectively connected to the left central plate 101 and the right central plate 102. The left central plate 101 is connected to the liquid inlet pipe 181, and the right central plate 102 is connected to the liquid outlet pipe 182. The heat exchanger shell 1 is connected to the flue gas inlet pipe 141 and the flue gas outlet pipe 142. The flue gas to be heat exchanged enters the heat exchanger shell 1 from the flue gas inlet pipe 141, is cooled by the tube bundle 11, and is then discharged from the flue gas outlet pipe 142. During the flue gas cooling process, sludge oil adheres to the tube bundle 11 and the inner wall of the heat exchanger shell 1.

[0029] The condensation mechanism includes a left slip ring 201, a right slip ring 202, and a nut slider 203. Both the left and right slip rings 201 and 202 are slidably fitted onto the heat exchanger housing 1. Both the left and right slip rings 201 and 202 are connected to the nut slider 203. A pair of limiting shafts 3 are symmetrically installed on the heat exchanger housing 1. Each of the left and right slip rings 201 and 202 has a pair of lugs 204, which are slidably connected to the limiting shafts 3. The drive mechanism includes a servo motor 15, a worm gear 161, and a long toothed column 4. The servo motor 15 is installed at one end of the heat exchanger housing 1. The worm gear 161 is connected to the servo motor 15. The long toothed column 4 is coaxially connected to the worm gear 161, located on the side of the worm gear 161 away from the servo motor 15. A compression pump 17 is installed on the side of the heat exchanger housing 1 away from the servo motor 15. The drive shaft of the compression pump 17 is coaxially connected to the long toothed column 4. The lugs 204 and... The connection of the limiting shaft 3 provides auxiliary support and limit for the left slip ring 201 and the right slip ring 202, allowing the condensing mechanism to slide smoothly on the heat exchanger housing 1. The servo motor 15 is powered on to drive the rotating worm 161 and the long toothed column 4 to rotate. The worm 161 drives the worm wheel 162 to rotate. The worm wheel 162 drives one of the first bevel gear 211 or the second bevel gear 212 to rotate through the linkage shaft 22, and then drives the driven bevel gear 20 to rotate. The driven bevel gear 20 and the screw 6 rotate simultaneously. The nut slider 203 moves with the rotation of the screw 6. The left slip ring 201 and the right slip ring 202 installed on the nut slider 203 slide on the heat exchanger housing 1. The accompanying gear 5 rotates under the drive of the long toothed column 4. Even though the accompanying gear 5 moves synchronously with the left slip ring 201 and the right slip ring 202, the accompanying gear 5 and the long toothed column 4 can still slide and mesh.

[0030] Both the left slip ring 201 and the right slip ring 202 have rotatably mounted fan blade rings 7 inside. A companion gear 5 is rotatably mounted between the left slip ring 201 and the right slip ring 202. The outer contours of the pair of fan blade rings 7 have toothed grooves. The companion gear 5 contacts the toothed grooves of the pair of fan blade rings 7. The companion gear 5 meshes with the long toothed column 4 for transmission. When the companion gear 5 rotates, it drives the two fan blade rings 7 in the left slip ring 201 and the right slip ring 202 to rotate. The axial surfaces of the blades in the two fan blade rings 7 face opposite directions, drawing air in from the middle of the left slip ring 201 and the right slip ring 202 and blowing it out to both sides at the same time to cool the spiral heat dissipation pipe 8.

[0031] The drive mechanism includes a linkage shaft 22 and a screw 6. The linkage shaft 22 is rotatably mounted on one end of the heat exchanger housing 1. A worm gear 162 is mounted on the linkage shaft 22, and the worm gear 162 meshes with the worm 161 for transmission. A first bevel gear 211 and a second bevel gear 212 are sleeved on the linkage shaft 22, and the first bevel gear 211 and the second bevel gear 212 are arranged opposite to each other. The screw 6 is rotatably mounted on the heat exchanger housing 1. The screw 6 is threadedly connected to the nut slider 203. A driven bevel gear 20 is coaxially mounted on the screw 6. When the first bevel gear 211 drives the driven bevel gear 20 to rotate, the screw 6 drives the nut slider 203 to move on the heat exchanger housing 1. After the condensing mechanism moves to the limit position on the heat exchanger housing 1, it touches the limit switch. The limit switch de-energizes the electromagnet 24 near the inner retaining shaft 23 and simultaneously energizes the electromagnet 24 away from the inner retaining shaft 23, causing the inner retaining shaft 23 to slide to the other end inside the linkage shaft 22 under the influence of magnetic force.

[0032] Limit switches are provided on both sides of the heat exchanger housing 1. A pair of electromagnets 24 are installed inside the linkage shaft 22. An inner locking shaft 23 is slidably arranged between the pair of electromagnets 24. The inner rings of the first bevel gear 211 and the second bevel gear 212 have locking grooves. The linkage shaft 22 has locking holes corresponding to the locking grooves. Protrusions 25 are slidably arranged inside both ends of the inner locking shaft 23. A spring is provided between the protrusions 25 and the inner locking shaft 23. The limit switches and the pair of electromagnets 24 are connected to a control system via a circuit. During the movement of the inner locking shaft 23, the protrusions 25 at one end retract into the inner locking shaft 23 along with the locking holes. The protrusions 25 make the linkage shaft 22 engage with the first bevel gear. When 211 is disconnected, the first bevel gear 211 spins freely on the linkage shaft 22. The protrusion 25 at the other end is pushed outward by the spring and springs into the locking groove of the second bevel gear 212, so that the linkage shaft 22 is connected to the second bevel gear 212. The linkage shaft 22 drives the second bevel gear 212 to rotate. Although the first bevel gear 211 and the second bevel gear 212 rotate in the same direction, they are respectively meshed in the opposite direction of the driven bevel gear 20. Therefore, the first bevel gear 211 and the second bevel gear 212 drive the driven bevel gear 20 to rotate in opposite directions. The forward and reverse rotation of the screw 6 drives the nut slider 203 to move back and forth, that is, the condensing mechanism slides back and forth on the heat exchanger shell 1.

[0033] Spiral heat dissipation tubes 8 are installed on the opposite sides of the left slip ring 201 and the right slip ring 202. The two spiral heat dissipation tubes 8 are connected in series. The compression port of the compressor pump 17 is connected to the spiral heat dissipation tubes 8 through a flexible pipe. The suction port of the compressor pump 17 is connected to the liquid outlet pipe 182 through a pipe. An expansion valve 19 is connected to the liquid inlet pipe 181. The spiral heat dissipation tubes 8 are connected to the expansion valve 19 through a flexible pipe. The compressor pump 17 starts working under the drive of the long toothed column 4. The tube bundle 11 is filled with condensate. The compressor pump 17 extracts the heat-absorbing condensate from the tube bundle 11 and presses the condensate into the spiral heat dissipation tubes 8 for cooling. The cooled condensate enters the expansion valve 19 through the pipe. After the condensate passes through the expansion valve 19, the pressure drops sharply and the temperature decreases, causing it to liquefy. The liquefied condensate absorbs heat from the flue gas and vaporizes after passing through the tube bundle 11. It then re-enters the compressor pump 17 to complete the heat exchange cycle, thereby cooling the flue gas.

[0034] The fan blade ring 7 inside the right slip ring 202 has several external magnets 9 near the end of the left slip ring 201. The inner ring of the oil scraper ring 131 has several pairs of internal magnets. Shallow annular grooves are opened at both ends inside the heat exchanger shell 1. The bottom of each shallow annular groove is connected to a drain pipe 26. The flue pipe 141 and the flue pipe 142 both pass through the inner wall of the heat exchanger shell 1 to the interior. When the fan blade ring 7 in the right slip ring 202 rotates rapidly, the several external magnets 9 also rotate rapidly. The rapidly rotating external magnets 9 attract the internal magnets, causing the oil scraper ring 131 to rotate. When the external magnets 9 move with the condensing mechanism, they drive the cone-shaped slider 12 to rotate in the tube via magnetic force. The tube bundle 11 moves along the tube bundle 11, and the conical slider 12 scrapes off the oil on the tube bundle 11. The herringbone scraper 132 on the oil scraper ring 131 scrapes off and cleans the oil on the inner wall of the heat exchanger shell 1 during rotation. When the conical slider 12 moves to the limit position, the herringbone scraper 132 scrapes the dirty oil into the shallow annular groove. After the oil enters the shallow annular groove, the dirty oil flows into the drain pipe 26. As the oil level rises to the highest position of the drain pipe 26, the oil flows downward, causing a vacuum to appear at the highest position of the drain pipe 26, which quickly sucks out the oil in the shallow annular groove, realizing automatic cleaning of the oil and achieving the effect of circulating oil filtration.

[0035] The working principle of this invention: When the heat exchanger of this invention is in operation, the flue gas to be heat exchanged is introduced into the heat exchanger shell 1 through the inlet pipe 141, cooled by the tube bundle 11, and then discharged from the outlet pipe 142. During the cooling process, sludge and oil adhere to the inner wall of the tube bundle 11 and the heat exchanger shell 1. The connection between the lug 204 and the limiting shaft 3 provides auxiliary support and limit for the left slip ring 201 and the right slip ring 202, allowing the condensing mechanism to slide smoothly on the heat exchanger shell 1. The servo motor 15 is energized to drive the rotating worm gear 161 and the long toothed column 4 to rotate, and the worm gear 161 drives the worm wheel. When worm gear 162 rotates, it drives one of the first bevel gear 211 or the second bevel gear 212 to rotate via the linkage shaft 22. Subsequently, it drives the driven bevel gear 20 to rotate. The driven bevel gear 20 and the screw 6 rotate simultaneously. The nut slider 203 moves with the rotation of the screw 6. The left slip ring 201 and the right slip ring 202 mounted on the nut slider 203 slide on the heat exchanger housing 1. The accompanying gear 5 rotates under the drive of the long tooth column 4. Even though the accompanying gear 5 moves synchronously with the left slip ring 201 and the right slip ring 202, the accompanying gear 5 and the long tooth column 4 can still slide and mesh.

[0036] As gear 5 rotates, it drives the two fan-blade rings 7 in the left slip ring 201 and right slip ring 202 to rotate. The axial surfaces of the blades in the two fan-blade rings 7 face opposite directions, drawing air in from the middle of the left slip ring 201 and right slip ring 202 and blowing it out to both sides to cool the spiral heat dissipation pipe 8. When the first bevel gear 211 drives the driven bevel gear 20 to rotate, the screw 6 drives the nut slider 203 to move on the heat exchanger housing 1. After the condensing mechanism moves to its limit position on the heat exchanger housing 1, it touches the limit switch. The limit switch de-energizes the electromagnet 24 near the inner retaining shaft 23 and simultaneously energizes the electromagnet 24 away from the inner retaining shaft 23. This causes the inner retaining shaft 23 to slide to the other end inside the linkage shaft 22 under the influence of magnetic force. During the movement of the inner retaining shaft 23, one end... The protrusion 25 retracts into the inner snap-fit ​​shaft 23 along with the snap-fit ​​hole. The protrusion 25 causes the linkage shaft 22 to disconnect from the first bevel gear 211. The first bevel gear 211 rotates freely on the linkage shaft 22. The protrusion 25 at the other end is pushed outward by the spring and springs into the snap-fit ​​groove of the second bevel gear 212, so that the linkage shaft 22 is connected to the second bevel gear 212. The linkage shaft 22 drives the second bevel gear 212 to rotate. Although the first bevel gear 211 and the second bevel gear 212 rotate in the same direction, they are respectively meshed in the opposite direction of the driven bevel gear 20. Therefore, the first bevel gear 211 and the second bevel gear 212 drive the driven bevel gear 20 to rotate in opposite directions. The forward and reverse rotation of the screw 6 drives the nut slider 203 to move back and forth, that is, the condensing mechanism slides back and forth on the heat exchanger shell 1.

[0037] Driven by the long toothed column 4, the compressor pump 17 starts working. The tube bundle 11 is filled with condensate. The compressor pump 17 extracts the heat-absorbing condensate from the tube bundle 11 and pressurizes it to the spiral heat dissipation tube 8 for cooling. The cooled condensate enters the expansion valve 19 through the pipeline. After passing through the expansion valve 19, the pressure of the condensate drops sharply, the temperature decreases and it liquefies. The liquefied condensate absorbs heat from the flue gas and vaporizes after passing through the tube bundle 11, and then re-enters the compressor pump 17 to complete the heat exchange cycle, thereby cooling the flue gas. When the fan blade ring 7 in the right slip ring 202 rotates rapidly, several outer magnets 9 also rotate rapidly. The rapidly rotating outer magnets 9 attract the inner magnets, causing the oil scraper ring 131 to rotate. The outer magnets 9 follow the rotation of the inner magnets. As the condensing mechanism moves, the conical slider 12 is driven by magnetic force to move on the tube bundle 11. The conical slider 12 scrapes off the oil on the tube bundle 11. The herringbone scraper 132 on the oil scraper ring 131 scrapes off the oil on the inner wall of the heat exchanger shell 1 during rotation. When the conical slider 12 moves to the limit position, the herringbone scraper 132 scrapes the dirty oil into the shallow annular groove. After the oil enters the shallow annular groove, the dirty oil flows into the drain pipe 26. As the oil level rises to the highest position of the drain pipe 26, the oil flows downward, causing a vacuum to appear at the highest position of the drain pipe 26, which quickly sucks out the oil in the shallow annular groove, realizing automatic cleaning of the oil and achieving the effect of circulating oil filtration.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lightweight heat exchanger with a function of circulating and filtering oil sludge, characterized in that: The utility model provides a heat exchanger, including heat exchanger shell (1), one end of heat exchanger shell (1) is provided with driving mechanism, and the condensing mechanism is slidably installed on heat exchanger shell (1), and the inside of heat exchanger shell (1) is provided with tube bundle (11), the conical head slider (12) is slidably installed on tube bundle (11), the outside of conical head slider (12) is provided with oil scraper ring (131) rotationally, and the both ends of conical head slider (12) are all tapered, a plurality of herringbone scrapers (132) are evenly arranged on oil scraper ring (131), a plurality of herringbone scrapers (132) are in contact with the inner wall of heat exchanger shell (1), the both ends of tube bundle (11) are connected with left concentration disc (101) and right concentration disc (102) respectively, the left concentration disc (101) is connected with liquid inlet pipe (181), and the right concentration disc (102) is connected with liquid outlet pipe (182), and the heat exchanger shell (1) is connected with smoke inlet pipe (141) and smoke outlet pipe (142); The condensing mechanism includes left slide ring (201), right slide ring (202) and nut slider (203), the left slide ring (201) and right slide ring (202) are slidably sleeved on the heat exchanger shell (1), and the left slide ring (201) and right slide ring (202) are connected with the nut slider (203), a pair of limit shafts (3) are symmetrically installed on the heat exchanger shell (1), a pair of hole ears (204) are arranged on the left slide ring (201) and right slide ring (202), and the hole ear (204) is slidably connected with the limit shaft (3); The driving mechanism includes servo motor (15), worm (161) and long tooth column (4), the servo motor (15) is installed at one end of the heat exchanger shell (1), the worm (161) is connected with the servo motor (15), the long tooth column (4) is coaxially connected with the worm (161), the long tooth column (4) is located at the side, away from the servo motor (15), of the worm (161), and the compression pump (17) is installed at the side, away from the servo motor (15), of the heat exchanger shell (1), and the drive shaft of the compression pump (17) is coaxially connected with the long tooth column (4); The inside of the left slide ring (201) and right slide ring (202) is rotationally provided with a pair of fan rings (7), and the following gear (5) is rotationally arranged between the left slide ring (201) and right slide ring (202), a pair of the outer contours of the fan rings (7) are provided with gear grooves, the following gear (5) is in contact with the gear grooves of the pair of fan rings (7), and the following gear (5) is engaged with the long tooth column (4) and is driven. The driving mechanism comprises a linkage shaft (22), a screw rod (6), the linkage shaft (22) is rotatably installed at one end of the heat exchanger shell (1), a worm wheel (162) is installed on the linkage shaft (22), the worm wheel (162) is in meshing transmission with a worm (161), a first bevel gear (211) and a second bevel gear (212) are sleeved on the linkage shaft (22), the first bevel gear (211) and the second bevel gear (212) are oppositely arranged, the screw rod (6) is rotatably arranged on the heat exchanger shell (1), the screw rod (6) is in threaded connection with a nut slider (203), the screw rod (6) coaxially has a driven bevel gear (20), the worm wheel (162) drives one of the first bevel gear (211) or the second bevel gear (212) to rotate through the linkage shaft (22). Pairs of external magnets (9) are arranged on one end of the fan ring (7) in the right sliding ring (202) close to the left sliding ring (201), and pairs of internal magnets are arranged on the inner ring of the oil scraper ring (131).

2. The portable heat exchanger with the circulating filter oil function according to claim 1, characterized in that: Travel switches are arranged on both sides of the heat exchanger shell (1), a pair of electromagnets (24) are arranged in the linkage shaft (22), an internal clamping shaft (23) is slidably arranged between the pair of electromagnets (24), clamping grooves are arranged in the inner rings of the first bevel gear (211) and the second bevel gear (212), clamping holes are arranged in the linkage shaft (22) corresponding to the clamping grooves, protrusions (25) are slidably arranged in the interiors of both ends of the internal clamping shaft (23), springs are arranged between the protrusions (25) and the internal clamping shaft (23), and a control system is connected between the travel switches and the pair of electromagnets (24) through a circuit.

3. The portable heat exchanger with the circulating filter oil function according to claim 1, characterized in that: Spiral heat dissipation pipes (8) are arranged on the sides of the left sliding ring (201) and the right sliding ring (202) away from each other, the two spiral heat dissipation pipes (8) are connected in series, a compression port of the compression pump (17) is connected with the spiral heat dissipation pipe (8) through a flexible pipeline, a suction port of the compression pump (17) is connected with the liquid outlet pipe (182) through a pipeline, an expansion valve (19) is connected with the liquid inlet pipe (181), and the spiral heat dissipation pipe (8) is connected with the expansion valve (19) through a flexible pipeline.

4. The portable heat exchanger with the circulating filter oil function according to claim 1, characterized in that: Shallow ring grooves are arranged at both ends in the heat exchanger shell (1), a blowdown pipe (26) is connected to the bottom of each shallow ring groove, and the smoke inlet pipe (141) and the smoke outlet pipe (142) pass through the inner wall of the heat exchanger shell (1) to the inside.

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