Energy-saving evaporator with high heat exchange

Abstract

The application provides a high-heat-exchange energy-saving evaporator, and belongs to the technical field of evaporators.The evaporator comprises a shell, a liquid outlet pipe and a liquid inlet pipe are respectively arranged on the top and bottom of the shell, an air inlet pipe and an air outlet pipe are arranged on the side wall of the shell, and the evaporator further comprises a heat exchange mechanism.The heat exchange mechanism comprises a plurality of heat exchange pipes which are uniformly distributed around the axis of the shell in the shell, and a plurality of heat exchange fins are fixedly arranged on each heat exchange pipe in the vertical direction.The chlorocalcic solution flows in the heat exchange pipe, and water vapor flows outside the heat exchange pipe.The heat exchange fins and the flow guide fins increase the contact area between the water vapor and the heat exchange pipe, thereby improving the heat exchange efficiency between the water vapor and the chlorocalcic solution.Meanwhile, the driving assembly drives the heat exchange pipe to slowly rotate in the shell during the heat exchange process of the water vapor and the chlorocalcic solution, thereby realizing uniform heat exchange of the chlorocalcic solution.

Description

Technical Field

[0001] This invention relates to the field of evaporator technology, and in particular to an energy-saving evaporator with high heat exchange capacity. Background Technology

[0002] In the processing of calcium chloride solution, in order to improve the purity of the calcium chloride solution, a forced circulation evaporator is often used to heat the calcium chloride solution to achieve water evaporation and obtain a calcium chloride solution with higher purity. The calcium chloride solution is driven by a forced circulation pump to enter the heat exchange tube from the liquid inlet of the shell, and then discharged into the separation chamber from the liquid outlet at the top of the shell. Water vapor enters from the air inlet of the shell, flows through the heat exchange tube, and is discharged from the air outlet. The water vapor heats the calcium chloride solution. The calcium chloride solution is heated by water vapor in the heat exchange tube but does not boil. The heated water vapor enters the separation chamber under negative pressure and flashes vaporizes, realizing water evaporation and concentration of calcium chloride solution, thereby purifying the calcium chloride solution.

[0003] In the purification process of calcium chloride solution, the calcium chloride solution exchanges heat with water vapor through heat exchange tubes. However, when heat exchange is only carried out through heat exchange tubes, the contact area between water vapor and heat exchange tubes is limited, and the heat exchange method is singular, so the heat exchange efficiency needs to be improved. Therefore, this application provides an energy-saving evaporator with high heat exchange to meet the requirements. Summary of the Invention

[0004] This invention provides an energy-saving evaporator with high heat exchange to solve the problem of insufficient heat exchange efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A high-heat-exchange-rate energy-saving evaporator includes a shell, with a liquid outlet pipe and a liquid inlet pipe installed at the top and bottom of the shell, respectively, and an air inlet pipe and an air outlet pipe installed on the side wall of the shell. It also includes: The heat exchange mechanism includes multiple heat exchange tubes evenly distributed around the axis of the shell inside the shell. Each heat exchange tube has multiple heat exchange plates fixed at intervals in the vertical direction. A guide plate is fixed between two adjacent heat exchange plates. A drive assembly is provided on the shell. During operation, the calcium chloride solution enters the heat exchange tube from the bottom inlet pipe of the shell and is discharged from the top outlet pipe. Water vapor enters the shell from the air inlet pipe and exchanges heat with the heat exchange tube before being discharged from the air outlet pipe. As the calcium chloride solution flows inside the heat exchange tube, the drive assembly drives the heat exchange tube to rotate inside the shell.

[0006] Preferably, the drive assembly includes a bracket fixed to the housing, a geared motor fixed to the side of the bracket, an upper plate and a lower plate rotatably connected inside the housing, the geared motor being rotatably connected to the upper plate via a transmission mechanism, a heat exchange tube fixed between the upper plate and the lower plate, and through grooves opened on the upper plate and the lower plate corresponding to the heat exchange tubes for the flow of calcium chloride solution. Multiple guide plates are fixed between the upper plate and the lower plate for guiding water vapor when the heat exchange tubes rotate.

[0007] Preferably, the housing is provided with an inlet chamber and an outlet chamber, the inlet chamber being located between the inlet pipe and the lower plate, and the outlet chamber being located between the outlet pipe and the upper plate.

[0008] Preferably, the guide plate includes a bent portion and a partition portion connected to each other. The bent portion is fixed between the upper plate and the lower plate, and the partition portion is located between two adjacent heat exchange tubes. The heat exchange tubes are isosceles triangles and are inclined to the side facing their own rotation direction.

[0009] Preferably, the heat exchange plate includes fin one and fin two connected to each other. Fin one is fixed between the heat exchange tube and the bend, fin two is fixed on the side of the heat exchange tube away from the bend, and guide vanes are fixed between two adjacent fin two. The width of fin one is greater than the width of fin two.

[0010] Preferably, a striking assembly is provided on the side of the bend away from the heat exchange tube. The striking assembly includes a striking rod rotatably connected to the side of the bend away from the heat exchange tube via a rotating shaft. A fixing block and a square block are fixed on the side of the bend away from the heat exchange tube, and a spring is fixed between the striking rod and the square block. The side of the striking rod away from the shell is in contact with the top of the fixing block. A row of driving blocks is fixed on the inner wall of the shell, and the bottom of the driving blocks is provided with an inclined surface.

[0011] Preferably, both fin one and fin two have through holes.

[0012] Preferably, a plurality of V-shaped plates are fixed on the side of the heat exchange tube away from the partition, the V-shaped plates are fixed between fin one and fin two, and a plurality of grooves are formed on the V-shaped plates.

[0013] Preferably, the heat exchange tube has multiple notches on the side facing its own rotation direction, and the inner wall of the notches has an arc-shaped surface.

[0014] Preferably, the guide vane is inclined, and an interception part is integrally formed on the side of the guide vane near the heat exchange tube. The side of the interception part near the heat exchange tube is fixedly connected to the outer wall of the heat exchange tube, and an airflow channel is formed between two adjacent interception parts.

[0015] Preferably, the side of the interceptor is provided with a curved surface, which is used to guide the water vapor.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, by setting heat exchange tubes, heat exchange plates, guide vanes and driving components, the calcium chloride solution flows inside the heat exchange tubes and the water vapor flows outside the heat exchange tubes. The heat exchange plates and guide vanes increase the contact area between the water vapor and the heat exchange tubes, thereby improving the heat exchange efficiency between the water vapor and the calcium chloride solution. At the same time, during the heat exchange process between the water vapor and the calcium chloride solution, the driving component drives the heat exchange tubes to rotate slowly inside the shell, so as to achieve uniform heat exchange of the calcium chloride solution.

[0017] By setting up an upper plate, a lower plate, and a guide plate, the geared motor drives the heat exchange tube, the guide plate, and the lower plate to rotate slowly through the upper plate. During the rotation, the guide plate guides the water vapor passing through the heat exchange tube, so that the water vapor can fully contact all surfaces of the heat exchange tube and achieve stable heat exchange.

[0018] By incorporating a bend and a partition, the guide plate consists of a bend and a partition. The partition is located between two heat exchange tubes that form an isosceles triangle. The side of the two heat exchange tubes facing the direction of rotation forms a guide surface, allowing water vapor to flow through this guide surface to the bend. During the flow, the water vapor is separated by the partition to prevent the water vapor guided by the two guide surfaces from colliding. Then, the water vapor is guided by the bend, allowing it to flow from the side of the heat exchange tube closest to the bend, thus achieving comprehensive heat exchange at the heat exchange tube and preventing the existence of heat exchange dead zones.

[0019] By setting fin one and fin two, the heat exchange plate is composed of fin one and fin two. Fin one improves the heat exchange capacity of the heat exchange tube on the side facing the bend, and fin two improves the heat exchange capacity of the heat exchange tube on the side away from the bend. At the same time, the width of fin one is greater than the width of fin two, so the heat exchange effect of fin one is greater than that of fin two. This design compensates for the poor heat exchange on the side of the heat exchange tube near the bend, thereby improving the heat exchange uniformity of the heat exchange tube.

[0020] By setting up a striking component, during rotation, the bending part drives the striking rod of the striking component to rotate. When one end of the striking rod passes the driving block and is squeezed by the inclined surface, one end of the striking rod rotates downward and the other end tilts upward and squeezes the spring. When the striking rod separates from the driving block, the other end of the striking rod rotates downward under the action of the spring force and hits the fixed block. The vibration generated by the impact is transmitted to the heat exchange tube through the guide plate. During heat exchange, a water film will form on the surface of the heat exchange tube due to condensation. The water film will affect the heat exchange between the calcium chloride solution and water vapor. Vibration will shake off the water film, reduce the adhesion of the water film, and ensure stable heat exchange at the heat exchange tube.

[0021] By setting through holes, which are opened on fin one and fin two, the water film can fall down along the through holes after being shaken. The through holes correspond to the connection between the heat exchange tube and the V-shaped plate, forming a downward channel. The water can flow down steadily and quickly from this downward channel, reducing water accumulation and further ensuring stable heat exchange at the heat exchange tube.

[0022] By incorporating V-shaped plates, the contact area between the heat exchange tube and the water vapor on the side furthest from its rotation direction is increased, thereby improving the heat exchange capacity at that point and further enhancing the heat exchange uniformity at the heat exchange tube. Simultaneously, the V-shaped plates also act as a barrier to the water vapor flowing through the heat exchange tube, increasing the contact time between the water vapor and the surface of the heat exchange tube, further improving the heat exchange capacity at the heat exchange tube. Furthermore, grooves are formed on the V-shaped plates to increase the contact area between the V-shaped plates and the water vapor, further improving the thermal conductivity at the V-shaped plates.

[0023] By setting a notch and an arc-shaped surface, the notch is opened on the side of the heat exchange tube facing its own rotation direction. The notch increases the contact area between this side and the water vapor, thereby improving the heat exchange capacity of this side. At the same time, an arc-shaped surface is opened inside the notch. The arc-shaped surface increases the width between the corresponding bends at the notch, thereby increasing the air intake between the heat exchange tube and the bend, further improving the heat exchange capacity at the heat exchange tube.

[0024] By incorporating an interception section and a curved surface, the interception section is integrally formed on the side of the guide vane near the heat exchange tube. The interception section blocks the water vapor flowing between the guide vane and the heat exchange tube, increasing the contact time between the water vapor and the heat exchange tube, allowing the water vapor to fully exchange heat with the calcium chloride solution inside the heat exchange tube. After heat exchange, the water vapor is discharged from the airflow channel between two adjacent interception sections. The curved surface is formed on the interception section to guide the flowing water vapor, allowing the water vapor to be discharged smoothly from the interception section after heat exchange. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal three-dimensional structure of the housing of the present invention; Figure 3 This is a three-dimensional structural diagram of the guide plate of the present invention; Figure 4 This is a three-dimensional structural diagram of the upper plate of the present invention; Figure 5 This is a cross-sectional view of the heat exchange tube of the present invention; Figure 6 This is a three-dimensional structural diagram of the guide vane of the present invention; Figure 7 This is a cross-sectional view of the guide vane of the present invention; Figure 8 This is a cross-sectional view of the heat exchange plate of the present invention; Figure 9 This is a three-dimensional structural diagram of the striking rod of the present invention; Figure 10 This is a three-dimensional structural diagram of the driving block of the present invention; Figure 11 This is a three-dimensional structural diagram of the interception section of the present invention; Figure 12 This is a three-dimensional structural diagram of the V-shaped piece of the present invention; Figure 13 This is a schematic diagram of the calcium chloride solution and vapor flow path of the present invention; Figure 14 This is a schematic diagram of the flow path of calcium chloride solution in the heat exchange tube under cross-sectional view.

[0026] In the diagram: 1. Shell; 2. Heat exchange mechanism; 3. Heat exchange tube; 4. Heat exchange fin; 5. Fin 1; 6. Fin 2; 7. V-shaped fin; 8. Groove; 9. Guide vane; 10. Interception section; 11. Curved surface; 12. Guide plate; 13. Bending section; 14. Separator section; 15. Notch; 16. Arc-shaped surface; 17. Drive assembly; 18. Gear motor; 19. Upper plate; 20. Lower plate; 21. Striking assembly; 22. Striking rod; 23. Drive block; 24. Inclined surface; 25. Fixing block; 26. Spring; 27. Square block; 28. Through hole; 29. ​​Liquid inlet chamber; 30. Liquid outlet chamber; 31. Liquid inlet pipe; 32. Liquid outlet pipe; 33. Air inlet pipe; 34. Air outlet pipe; 35. Through groove.

[0027] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0028] The present invention provides a high-heat-exchange-rate energy-saving evaporator with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0029] like Figures 1-13As shown, an embodiment of the present invention provides an energy-saving evaporator with high heat exchange, including a shell 1 and a heat exchange mechanism 2 disposed inside the shell 1. A liquid outlet pipe 32 and a liquid inlet pipe 31 are respectively installed at the top and bottom of the shell 1. The liquid inlet pipe 31, the liquid outlet pipe 32 and the heat exchange mechanism 2 are connected, allowing calcium chloride solution to enter the heat exchange mechanism 2. An air inlet pipe 33 and an air outlet pipe 34 are installed on the side wall of the shell 1. Water vapor enters the interior of the shell 1 from the air inlet pipe 33 and then flows out from the air outlet pipe 34. Through the heat exchange mechanism 2, the heat of the water vapor can be transferred to the calcium chloride solution.

[0030] The heat exchange mechanism 2 includes multiple heat exchange tubes 3 evenly distributed around the axis of the shell 1 inside the shell 1. The multiple heat exchange tubes 3 also form an inner and outer ring distribution state. The inner and outer ring distribution state lays the foundation for reducing the heat exchange dead angle of the heat exchange tubes 3. The heat exchange tubes 3 are arranged vertically, and each heat exchange tube 3 is fixed with multiple heat exchange plates 4 at intervals in the vertical direction. The heat exchange plates 4 are used to increase the contact area between the heat exchange tubes 3 and water vapor, thereby improving the heat exchange capacity at the heat exchange tubes 3, thereby improving the heat exchange efficiency of the evaporator, reducing energy consumption, and ensuring continuous and reliable operation of the evaporation process. At work, such as Figure 1 As shown, the calcium chloride solution enters the heat exchange tube 3 from the bottom inlet pipe 31 of the shell 1 and exits from the top outlet pipe 32, while water vapor exits from... Figure 1 The air inlet pipe 33 on the upper left of the casing 1 enters the casing 1 and exchanges heat with the heat exchange pipe 3 through contact heat exchange. Figure 1 The gas is discharged through the outlet pipe 34 at the lower right of the shell 1 shown. The calcium chloride solution exchanges heat with water vapor during the flow inside the heat exchange tube 3.

[0031] like Figure 2 and Figure 3 As shown, the upper and lower ends of the heat exchange tube 3 are respectively provided with an upper plate 19 and a lower plate 20. All the ends of the heat exchange tube 3 are fixedly connected to the upper plate 19 and the lower plate 20 respectively. The upper plate 19 and the lower plate 20 are rotatably sealed to the inner wall of the shell 1, so that the upper plate 19 and the lower plate 20 can rotate along their own axis. They can also divide the interior of the shell 1 into a heat exchange chamber in the middle, a liquid outlet chamber 30 at the upper end, and a liquid inlet chamber 29 at the lower end. The three chambers are isolated from each other and do not communicate with each other. The heat exchange chamber facilitates heat exchange, while the liquid outlet chamber 30 and the liquid inlet chamber 29 allow all the heat exchange tubes 3 to communicate with each other. When a heat exchange tube 3 is blocked, the calcium chloride solution can naturally enter other heat exchange tubes 3 instead of continuously entering the blocked pipe, thus avoiding potential safety hazards.

[0032] A through groove 35 is provided on the upper plate 19 and the lower plate 20 at the corresponding heat exchange tube 3. The through groove 35 is used for calcium chloride solution to pass through the upper plate 19 or the lower plate 20. A drive assembly 17 is provided on the housing 1. The drive assembly 17 drives the heat exchange tube 3 to rotate inside the housing 1. The drive assembly 17 includes a bracket fixed on the housing 1. A geared motor 18 is fixed on the side of the bracket. The geared motor 18 is rotatably connected to the upper plate 19 through a transmission mechanism. The geared motor 18 drives the upper plate 19 to rotate slowly through the transmission mechanism. The upper plate 19 drives the heat exchange tube 3 to rotate inside the shell 1. The heat exchange tube 3 then drives the lower plate 20 to rotate together inside the shell 1. The drive assembly 17 is used to make the heat exchange tube 3 rotate in the shell 1, so as to achieve uniform heating of the calcium chloride solution inside the heat exchange tube 3.

[0033] like Figure 7 and Figure 8 As shown, multiple guide plates 12 are fixed between the upper plate 19 and the lower plate 20. The multiple guide plates 12 are evenly distributed around the axis of the shell 1 inside the shell 1. The guide plates 12 are used to guide the water vapor when the heat exchange tube 3 rotates, increase the time for the water vapor to flow through the surface of the heat exchange tube 3, and further increase its heat exchange effect.

[0034] The deflector 12 includes a bent portion 13 and a partition portion 14 connected to each other. The bent portion 13 is fixed between the upper plate 19 and the lower plate 20, and the bent portion 13 is shaped like... Figure 5 The V-shape shown has a partition 14 located between two adjacent heat exchange tubes 3 of the inner and outer rings, and the two adjacent heat exchange tubes 3 of the inner and outer rings are symmetrically distributed on both sides of the partition 14. The cross-section of the heat exchange tube 3 is an isosceles triangle, and the center line of the non-isosceles side of the heat exchange tube 3 is inclined about the partition 14. The two inclined parts of the bend 13 are parallel to the corresponding non-isosceles side center line of the heat exchange tube 3. During the slow rotation of the heat exchange tube 3 inside the shell 1, it comes into contact with the water vapor in the shell 1. A portion of the water vapor passes through the side of the heat exchange tube 3 away from the bend 13, while another portion of the water vapor flows between the two heat exchange tubes 3 and through the partition 14. When it flows through the partition 14, it is cut off by the side of the partition 14 away from the bend 13 to achieve diversion. After diversion, it is blocked by the plate surface of the partition 14 near the heat exchange tube 3 to prevent the two streams of water vapor from colliding and causing airflow turbulence. The heat exchange tube 3 is inclined on the side facing the partition 14, thus forming an inclined guide surface. When the separated water vapor flows through the inclined guide surface, it is turned and then flows to the connection position between the partition 14 and the bend 13. Then, under the restriction of the inclined part of the bend 13, it is forced to flow between the heat exchange tube 3 and the bend 13, so as to achieve full heat exchange of the heat exchange tube 3, reduce heat exchange dead angles, and improve the contact between water vapor and heat exchange tube 3.

[0035] like Figure 6 and Figure 8As shown, the heat exchange tube 3 has multiple notches 15 on the side facing the partition 14. The inner wall of the notch 15 has an arc-shaped surface 16. The notches 15 are used to increase the contact area between the heat exchange tube 3 facing the partition 14 and the water vapor, thereby improving the local heat exchange capacity on that side. The arc-shaped surface 16 is used to increase the air intake space between the notch 15 and the bend 13, thereby increasing the air intake in that area and allowing more water vapor to contact the side of the heat exchange tube 3 facing the bend 13, thereby further improving the overall heat exchange capacity of the heat exchange tube 3.

[0036] like Figure 9 and Figure 12 As shown in this embodiment, a plurality of V-shaped plates 7 are fixed on the side of the heat exchange tube 3 away from the partition 14. The V-shaped plates 7 are fixed between fin one 5 and fin two 6. A plurality of grooves 8 are provided on the V-shaped plates 7. The V-shaped plates 7 are used to increase the contact area between the heat exchange tube 3 away from the partition 14 and the water vapor, thereby improving the heat exchange capacity at this point and further improving the overall heat exchange uniformity of the heat exchange tube 3. At the same time, the V-shaped plates 7 form a barrier against the water vapor, prolonging the contact time between the water vapor and the surface of the heat exchange tube 3 and enhancing the heat exchange effect. The grooves 8 are used to further increase the contact area between the V-shaped plates 7 and the water vapor, improve the thermal conductivity of the V-shaped plates 7, and thus improve the overall heat exchange performance.

[0037] like Figures 5-8 as well as Figure 11 As shown, a guide vane 9 is fixed between two adjacent heat exchange plates 4. The guide vane 9 is inclined. One end of the guide vane 9 is set close to the heat exchange tube 3, and the other end is set away from the heat exchange tube 3, so as to form an inclined state of the guide vane 9 relative to the heat exchange tube 3. Multiple intercepting parts 10 are integrally formed on the end of the guide vane 9 close to the heat exchange tube 3. The intercepting parts 10 are located on the side of the guide vane 9 close to the heat exchange tube 3 and are evenly distributed. The side of the intercepting parts 10 close to the heat exchange tube 3 is fixedly connected to the outer wall of the heat exchange tube 3. An airflow channel is formed between two adjacent intercepting parts 10. The inclined guide vane 9 forms an angle α (α≤90°) with one side of the heat exchange tube 3, thereby creating an outwardly expanding opening between the guide vane 9 and the heat exchange tube 3 to guide the steam flowing through the end of the guide vane 9 to flow towards the side of the heat exchange tube 3, thereby enhancing the heat exchange effect of the heat exchange tube 3. The interception part 10 is used to block the water vapor flowing between the guide vane 9 and the heat exchange tube 3, prolonging the contact time between the water vapor and the surface of the heat exchange tube 3, so that the water vapor can fully exchange heat with the calcium chloride solution in the heat exchange tube 3. The airflow channel between two adjacent interception parts 10 is used to allow the water vapor after heat exchange to be discharged smoothly, avoiding airflow blockage that affects the heat exchange efficiency.

[0038] like Figure 11As shown, the side of the interception section 10 is provided with a curved surface 11. The curved surface 11 is used to guide the water vapor passing through the interception section 10, so that the water vapor flows towards the airflow channel, avoiding the water vapor from being stuck or causing turbulence at the interception section 10, and ensuring that the water vapor after heat exchange can be discharged smoothly and stably from the airflow channel between adjacent interception sections 10.

[0039] like Figures 6-8 As shown, in this embodiment, the heat exchange plate 4 includes two interconnected fins: a first fin 5 and a second fin 6. The first fin 5 is fixed between the heat exchange tube 3 and the bend 13, and the second fin 6 is fixed on the side of the heat exchange tube 3 away from the bend 13. A guide vane 9 is fixed between two adjacent second fins 6. The width of the first fin 5 is greater than the width of the second fin 6. The first fin 5 increases the heat exchange capacity of the heat exchange tube 3 near the bend 13 by increasing the heat exchange area, and the second fin 6 increases the heat exchange capacity of the heat exchange tube 3 away from the bend 13 by increasing the heat exchange area. The guide vane 9, fixed between two adjacent second fins 6, can guide water vapor to flow towards the heat exchange tube 3 (see reference). Figure 7 This improves the heat exchange capacity at that location. Specifically, it should be noted that the width d of the interception section 10 is less than the width of the second fin 6, so as to ensure that the guide vane 9 can improve the heat exchange effect of the heat exchange tube 3 through the setting of the included angle α. The area of ​​the first fin 5 is greater than the area of ​​the second fin 6, so that the heat exchange effect at the first fin 5 is stronger, thereby compensating for the problem that the heat exchange of the heat exchange tube 3 is weaker on the side near the bend section 13, and improving the overall heat exchange uniformity of the heat exchange tube 3.

[0040] like Figure 4 , Figure 6 , Figure 9 and Figure 10 As shown, in this embodiment, a striking assembly 21 is provided on the side of the bend 13 away from the heat exchange tube 3. The striking assembly 21 includes a striking rod 22 rotatably connected to the side of the bend 13 away from the heat exchange tube 3 via a rotating shaft. A fixing block 25 and a square block 27 are fixed on the side of the bend 13 away from the heat exchange tube 3, and a spring 26 is fixed between the striking rod 22 and the square block 27. The side of the striking rod 22 away from the housing 1 is in contact with the top of the fixing block 25. A row of driving blocks 23 is fixed on the inner wall of the housing 1. An inclined surface 24 is provided at the bottom of the driving block 23. The bending part 13 is used to install the striking assembly 21, the rotating shaft is used to enable the striking rod 22 to rotate, the block 27 is used to fix the spring 26, the spring 26 is used to provide the striking rod 22 with a restoring elastic force, the fixing block 25 is used to cooperate with the striking rod 22 to generate vibration by impact, and the inclined surface 24 on the drive block 23 is used to squeeze the striking rod 22 when it rotates through the bending part 13, causing the striking rod 22 to rotate and squeeze the spring 26. When the striking rod 22 separates from the drive block 23, the elastic force of the spring 26 drives the striking rod 22 to rotate in the opposite direction and impact the fixing block 25. The vibration generated by the impact is transmitted to the heat exchange tube 3 through the guide plate 12, shaking off the water film formed on the surface of the heat exchange tube 3 due to condensation, reducing the impact of water film adhesion on heat exchange, and ensuring stable heat exchange.

[0041] like Figure 8 As shown in this embodiment, through holes 28 are provided on fin 1 5 and fin 2 6. The through holes 28 are used to allow the water film shaken off by the impacted component 21 to fall quickly along the through holes 28. The through holes 28 form a downward channel at the connection between the heat exchange tube 3 and the V-shaped plate 7, so that the water can be discharged downward stably and quickly, reducing the accumulation of water on the surface of the heat exchange tube 3, fin 1 5 and fin 2 6, and further ensuring the stable heat exchange efficiency of the heat exchange tube 3 surface.

[0042] like Figure 3 As shown, the transmission mechanism mainly consists of two meshing bevel gears and a gearbox. One bevel gear is connected to the output shaft of the geared motor 18 via a shaft, and the other bevel gear is connected to the upper plate 19 via another shaft. Both bevel gears are located inside the gearbox, which is fixed in the housing 1. The output shaft of the geared motor 18 drives one bevel gear to rotate, and the meshing of the two bevel gears drives the upper plate 19 to rotate, thereby realizing the slow rotation of the heat exchange tube 3 inside the housing 1.

[0043] Working principle: Calcium chloride solution enters from the bottom inlet pipe 31 of the shell 1, first entering the heat exchange tube 3 through the through groove 35 at the lower plate 20, flowing through the interior of the heat exchange tube 3, and then flowing out through the through groove 35 at the upper plate 19 and exiting through the outlet pipe 32 at the top of the shell 1. Water vapor flows out from... Figure 1 The air inlet pipe 33 on the upper left of the shell 1 enters the inner cavity of the shell 1. After the water vapor exchanges heat with the calcium chloride solution in the heat exchange tube 3, it is discharged from the air outlet pipe 34 on the lower right of the shell 1. During the heat exchange process between the calcium chloride solution and the water vapor, the drive component 17 drives the heat exchange tube 3 to rotate slowly inside the shell 1 to achieve uniform heat exchange of the calcium chloride solution. The geared motor 18 drives the upper plate 19 to rotate through the transmission mechanism. The upper plate 19 synchronously drives the heat exchange tube 3, the guide plate 12 and the lower plate 20 to rotate slowly. During the rotation, the guide plate 12 guides the water vapor passing through the heat exchange tube 3, so that the water vapor can fully contact the surfaces of the heat exchange tube 3, avoid insufficient local heat exchange, and achieve stable and efficient heat exchange. The guide plate 12 consists of a bending section 13 and a partition section 14. The partition section 14 is located between two heat exchange tubes 3 that are in the shape of an isosceles triangle. The side of the heat exchange tube 3 facing the partition section 14 forms a guide surface, allowing water vapor to flow along the guide surface to the bending section 13. The partition section 14 separates the two streams of water vapor to prevent water vapor from colliding and causing airflow turbulence. The bending section 13 then guides the water vapor to flow from the side of the heat exchange tube 3 near the bending section 13, achieving full heat exchange of the heat exchange tube 3 and reducing heat exchange dead zones. The heat exchange fins 4 on the heat exchange tube 3 are composed of fin one 5 and fin two 6. Fin one 5 improves the heat exchange capacity of the heat exchange tube 3 near the bend 13, and fin two 6 improves the heat exchange capacity of the heat exchange tube 3 away from the bend 13. The width of fin one 5 is greater than the width of fin two 6, so that the heat exchange effect at fin one 5 is stronger, thereby compensating for the problem of weak heat exchange on the side of the heat exchange tube 3 near the bend 13 and improving the overall heat exchange uniformity of the heat exchange tube 3. A V-shaped plate 7 is fixed on the side of the heat exchange tube 3 away from the partition 14. The V-shaped plate 7 increases the contact area between the heat exchange tube 3 and the water vapor on this side, improves the heat exchange capacity, and further improves the heat exchange uniformity. At the same time, the V-shaped plate 7 forms a barrier to the water vapor, prolongs the contact time between the water vapor and the surface of the heat exchange tube 3, and enhances the heat exchange effect. The groove 8 opened on the V-shaped plate 7 further increases its contact area with the water vapor and improves the thermal conductivity. The heat exchange tube 3 has a notch 15 on the side facing its own rotation direction. The notch 15 increases the contact area between this side and water vapor, improving the local heat exchange capacity. The arc-shaped surface 16 of the inner wall of the notch 15 increases the air intake space between the notch 15 and the bend 13, increasing the air intake volume and further improving the overall heat exchange capacity of the heat exchange tube 3. A guide vane 9 is fixed between two adjacent fins 2 6. The guide vane 9 is inclined and guides water vapor to flow onto the heat exchange tube 3, thereby improving the heat exchange capacity at that point. At the same time, an interception part 10 is integrally formed on the side of the guide vane 9 near the heat exchange tube 3. The interception part 10 blocks the water vapor flowing between the guide vane 9 and the heat exchange tube 3, prolonging the residence time of the water vapor and allowing the water vapor to fully exchange heat with the calcium chloride solution in the heat exchange tube 3. After heat exchange, the water vapor is smoothly discharged from the airflow channel between adjacent interception sections 10. The curved surface 11 on the interception section 10 guides the water vapor to ensure stable airflow. When the bent part 13 rotates with the heat exchange tube 3, it drives the striking rod 22 of the striking assembly 21 to rotate synchronously. When one end of the striking rod 22 passes the driving block 23 and is squeezed by the inclined surface 24, the striking rod 22 rotates around the rotating shaft. At this time, one end of the striking rod 22 rotates downward and the other end tilts upward and squeezes the spring 26. After the striking rod 22 separates from the driving block 23, under the elastic force of the spring 26, the other end of the striking rod 22 strikes the fixed block 25 downward. The resulting vibration is transmitted to the heat exchange tube 3 through the guide plate 12, which shakes off the water film formed on the surface of the heat exchange tube 3 due to condensation, reduces the impact of water film adhesion on heat exchange, and ensures stable heat exchange. Both fin 5 and fin 6 have through holes 28. The water film that is shaken off can fall quickly along the through holes 28. The through holes 28 form a downward channel at the connection between the heat exchange tube 3 and the V-shaped plate 7, so that the water flow can be discharged downward stably and quickly, reducing water accumulation and further ensuring the stable heat exchange efficiency of the heat exchange tube 3 surface. Through the above structural combination, efficient, uniform and stable heat exchange between calcium chloride solution and water vapor is achieved, improving the heat exchange efficiency of the evaporator, reducing energy consumption, and ensuring continuous and reliable operation of the evaporation process.

[0044] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A high-heat-exchange-efficiency energy-saving evaporator, comprising a shell (1), wherein a liquid outlet pipe (32) and a liquid inlet pipe (31) are respectively installed at the top and bottom of the shell (1), and an air inlet pipe (33) and an air outlet pipe (34) are installed on the side wall of the shell (1), characterized in that, Also includes: The heat exchange mechanism (2) includes multiple heat exchange tubes (3) evenly distributed around the axis of the shell (1) within the shell (1). Each heat exchange tube (3) is fixed with multiple heat exchange plates (4) at intervals in the vertical direction. A guide plate (9) is fixed between two adjacent heat exchange plates (4). A drive assembly (17) is provided on the shell (1). During operation, the calcium chloride solution enters the heat exchange tube (3) from the bottom inlet pipe (31) of the shell (1) and is discharged from the top outlet pipe (32). Water vapor enters the shell (1) from the air inlet pipe (33) on the shell (1) and exchanges heat with the heat exchange tube (3) before being discharged from the air outlet pipe (34). When the calcium chloride solution flows in the heat exchange tube (3), the drive assembly (17) drives the heat exchange tube (3) to rotate in the shell (1).

2. The high heat exchange energy-saving evaporator according to claim 1, characterized in that, The drive assembly (17) includes a bracket fixed on the housing (1), a geared motor (18) fixed on the side of the bracket, an upper plate (19) and a lower plate (20) rotatably connected inside the housing (1), the geared motor (18) is rotatably connected to the upper plate (19) through a transmission mechanism, the heat exchange tube (3) is fixed between the upper plate (19) and the lower plate (20), and a through groove (35) is opened on the upper plate (19) and the lower plate (20) corresponding to the heat exchange tube (3), the through groove (35) is used for the flow of calcium chloride solution, and multiple guide plates (12) are fixed between the upper plate (19) and the lower plate (20), the guide plates (12) are used to guide the water vapor when the heat exchange tube (3) rotates; The housing (1) is provided with an inlet chamber (29) and an outlet chamber (30). The inlet chamber (29) is located between the inlet pipe (31) and the lower plate (20), and the outlet chamber (30) is located between the outlet pipe (32) and the upper plate (19).

3. The high heat exchange energy-saving evaporator according to claim 2, characterized in that, The guide plate (12) includes a bent part (13) and a partition part (14) connected to each other. The bent part (13) is fixed between the upper plate (19) and the lower plate (20). The partition part (14) is located between two adjacent heat exchange tubes (3). The heat exchange tubes (3) are in the shape of an isosceles triangle and are inclined towards the side of their own rotation direction.

4. The high heat exchange energy-saving evaporator according to claim 3, characterized in that, The heat exchange plate (4) includes fin one (5) and fin two (6) connected to each other. Fin one (5) is fixed between the heat exchange tube (3) and the bend (13). Fin two (6) is fixed on the side of the heat exchange tube (3) away from the bend (13). The guide plate (9) is fixed between two adjacent fin two (6). The width of fin one (5) is greater than the width of fin two (6).

5. The high heat exchange energy-saving evaporator according to claim 4, characterized in that, A striking assembly (21) is provided on the side of the bent portion (13) away from the heat exchange tube (3). The striking assembly (21) includes a striking rod (22) rotatably connected to the side of the bent portion (13) away from the heat exchange tube (3) via a rotating shaft. A fixing block (25) and a square block (27) are fixed on the side of the bent portion (13) away from the heat exchange tube (3). A spring (26) is fixed between the striking rod (22) and the square block (27). The side of the striking rod (22) away from the shell (1) is in contact with the top of the fixing block (25). A row of driving blocks (23) is fixed on the inner wall of the shell (1). An inclined surface (24) is provided at the bottom of the driving block (23).

6. The high heat exchange energy-saving evaporator according to claim 5, characterized in that, Both fin one (5) and fin two (6) are provided with through holes (28).

7. The high heat exchange energy-saving evaporator according to claim 2, characterized in that, The heat exchange tube (3) has multiple V-shaped plates (7) fixed on the side away from the partition (14). The V-shaped plates (7) are fixed between fin one (5) and fin two (6). Multiple grooves (8) are provided on the V-shaped plates (7).

8. The high heat exchange energy-saving evaporator according to claim 1, characterized in that, The heat exchange tube (3) has multiple openings (15) on the side facing its own rotation direction, and the inner wall of the opening (15) has an arc-shaped surface (16).

9. The high heat exchange energy-saving evaporator according to claim 1, characterized in that, The guide vane (9) is inclined, and an interception part (10) is integrally formed on the side of the guide vane (9) near the heat exchange tube (3). The side of the interception part (10) near the heat exchange tube (3) is fixedly connected to the outer wall of the heat exchange tube (3), and an airflow channel is formed between two adjacent interception parts (10).

10. The high heat exchange energy-saving evaporator according to claim 9, characterized in that, The interceptor (10) has a curved surface (11) on its side, which is used to guide water vapor.

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