A rotary guide plate material heat exchanger

Abstract

This utility model relates to the field of heat exchanger technology, specifically to a rotary guide plate type material heat exchanger, including a feeding mechanism and a discharging mechanism. A cylinder is rotatably connected between the feeding mechanism and the discharging mechanism. An inner cylinder is fixed inside the cylinder, forming a first heat exchange chamber between the inner cylinder and the cylinder. A first guide plate and a baffle are fixedly connected to the inner cylinder. The baffle is hollow, forming a second heat exchange chamber. A central tube is fixedly connected between the baffles. A water inlet main pipe is coaxially fixed to one end of the central tube, communicating with the first heat exchange chamber, the first heat exchange chamber, and the second heat exchange chamber. The second heat exchange chamber is also connected to the central tube. This utility model employs a low-disturbance, low-power dynamic flow guiding mechanism with a first guide plate. Under the combined action of centrifugal force and gravity, the material is gently fluidized, reducing mechanical wear and system energy consumption. By setting up the first and second heat exchange chambers, the material can undergo two-stage heat exchange with the heat exchange medium, improving heat exchange efficiency.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically to a rotary guide plate type material heat exchanger. Background Technology

[0002] In many industrial fields such as modern chemical industry, fertilizer, food, pharmaceutical and new energy materials, pneumatic conveying technology for solid materials such as powder and granules has become a core means of connecting upstream and downstream processes and realizing efficient material flow due to its significant advantages such as good sealing, flexible layout and easy realization of continuous and automated operation. In actual production process, in order to accurately control the material temperature, it is often necessary to complete a rapid and uniform heat exchange operation during pneumatic conveying.

[0003] Currently, the mainstream equipment used for material heat exchange in pneumatic conveying pipelines mainly includes jacketed static heat exchangers and fluidized bed heat exchangers. Jacketed static heat exchangers have a simple structure, but their static pipe walls are prone to material adhesion and agglomeration, which not only significantly reduces heat exchange efficiency but may also cause pipeline blockage, affecting the continuity and stability of production. While fluidized bed heat exchangers can achieve better heat exchange uniformity, they consume a lot of energy, have a complex equipment structure, and suffer from severe particle wear under high-speed fluidization conditions. Therefore, there are still shortcomings and deficiencies in the existing technology. Utility Model Content

[0004] This invention provides a rotary guide plate type material heat exchanger to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a rotary guide plate type material heat exchanger, including a feeding mechanism and a discharging mechanism arranged opposite to each other, a cylinder rotatably connected between the feeding mechanism and the discharging mechanism, a driving mechanism for driving the cylinder to rotate outside the cylinder, an inner cylinder coaxially fixed inside the cylinder, a plurality of first guide plates fixedly connected to the inner side wall of the inner cylinder and inclined relative to the axis of the inner cylinder, the gap between the inner cylinder and the cylinder forming a first heat exchange chamber, and a plurality of baffles fixedly connected to the inner side wall of the inner cylinder and spaced radially along the inner cylinder. A hollow structure forms a second heat exchange chamber. A central tube, coaxial with the inner cylinder, is fixedly connected between multiple baffles. The end of the central tube near the feeding mechanism is closed, and the end away from the feeding mechanism extends to the outside of the discharge mechanism and is rotatably connected to the discharge mechanism. A water inlet main pipe is coaxially fixed inside the end of the central tube away from the feeding mechanism. The water inlet main pipe is connected to the end of the first heat exchange chamber near the discharge mechanism. The end of the first heat exchange chamber near the feeding mechanism is connected to the second heat exchange chamber through a connecting pipe. The end of the second heat exchange chamber near the discharge mechanism is connected to the central tube.

[0006] Preferably, the feeding mechanism includes an inclined feeding pipe, the lower end of which extends into the inner cylinder, and a cylindrical protective cover is fixedly fitted over the feeding pipe, the protective cover being rotatably connected to the cylinder.

[0007] Preferably, the discharge mechanism includes a collection part rotatably sleeved on the end of the cylinder, the end of the collection part away from the cylinder being rotatably connected to the central tube, and the bottom of the collection part being connected to a discharge pipe.

[0008] Preferably, a number of second guide plates are fixedly connected to the baffle and are inclined relative to the axis of the inner cylinder.

[0009] Preferably, the drive mechanism includes a motor, which is driven by two rollers located on both sides below the cylinder, and both rollers are frictionally driven by the cylinder.

[0010] Preferably, the end of the cylinder and the inner cylinder near the feeding mechanism is tapered.

[0011] Preferably, the end of the main water inlet pipe near the feeding mechanism is connected to multiple sub-pipes, the end of the sub-pipes away from the main water inlet pipe passes through the central pipe and is fixedly connected to the central pipe, and the end of the sub-pipes away from the main water inlet pipe is connected to the first heat exchange chamber.

[0012] Preferably, an overflow port is provided between the end of the second heat exchange chamber near the discharge mechanism and the central tube.

[0013] The beneficial effects of this utility model are as follows: (1) This utility model adopts a low-disturbance, low-power first guide plate dynamic flow guiding mechanism, which gently fluidizes the material under the combined action of centrifugal force and gravity. Compared with traditional fluidized bed heat exchangers, it can reduce mechanical wear and system energy consumption. By setting the outer first heat exchange cavity and the inner second heat exchange cavity, the material can exchange heat with the heat exchange medium in two stages, which can increase the heat exchange area and improve the heat exchange efficiency; (2) Through the deep collaboration between the circulating heat exchange system and the rotating cylinder, the material flow field and temperature field are dynamically self-homogenized, thereby reducing local heat accumulation and maintaining continuous and efficient heat exchange. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 for Figure 2 Schematic diagram of the cross section at point aa; Figure 4 for Figure 3 A magnified structural diagram of part A in the middle; Figure 5 This is a side view of the structure of this utility model; Figure 6 for Figure 5 A schematic diagram of the structure cut open at the middle bb section.

[0015] Reference numerals: 1. Cylinder body, 2. Inner cylinder, 3. Feeding mechanism, 31. Feeding pipe, 32. First flange port, 33. Protective cover, 4. Discharge mechanism, 41. Collection section, 42. Discharge pipe, 43. Second flange port, 5. Drive mechanism, 51. Motor, 52. Roller, 6. First guide plate, 7. First heat exchange chamber, 8. Baffle, 9. Second heat exchange chamber, 10. Central pipe, 11. Main water inlet pipe, 12. Connecting pipe, 13. Column, 14. Second guide plate, 15. Sub-water inlet pipe, 16. Flow port. Detailed Implementation

[0016] The present invention will now be further described with reference to the accompanying drawings.

[0017] like Figure 1-6 As shown, this utility model provides a rotary guide plate type material heat exchanger, including a feeding mechanism 3 and a discharging mechanism 4 arranged opposite to each other. A cylinder 1 is rotatably connected between the feeding mechanism 3 and the discharging mechanism 4, and the interior of the cylinder 1 is connected to the feeding mechanism 3 and the discharging mechanism 4. A driving mechanism 5 is provided outside the cylinder 1 to drive the cylinder 1 to rotate. An inner cylinder 2 is coaxially fixed inside the cylinder 1. Several first guide plates 6 are fixedly connected to the inner side wall of the inner cylinder 2 and are inclined relative to the axis of the inner cylinder 2. The first guide plates 6 are used to push the material to move towards the discharging mechanism 4 and enhance heat exchange. In this embodiment, the inclination angle of the first guide plates 6 is 45°. The gap between the inner cylinder 2 and the cylinder 1 forms a first heat exchange cavity 7. Several radially inclined guide plates are fixedly connected to the inner side wall of the inner cylinder 2. The baffles 8 are spaced apart and hollow to form a second heat exchange chamber 9. A central tube 10, coaxial with the inner cylinder 2, is fixedly connected between the baffles 8. The end of the central tube 10 near the feeding mechanism 3 is closed, and the end of the central tube 10 away from the feeding mechanism 3 extends to the outside of the discharge mechanism 4 and is rotatably connected to the discharge mechanism 4. A water inlet main pipe 11 is coaxially fixed inside the end of the central tube 10 away from the feeding mechanism 3. The water inlet main pipe 11 is connected to the end of the first heat exchange chamber 7 near the discharge mechanism 4. The end of the first heat exchange chamber 7 near the feeding mechanism 3 is connected to the second heat exchange chamber 9 through a connecting pipe 12. The connecting pipe 12 corresponds to the second heat exchange chamber 9. The end of the second heat exchange chamber 9 near the discharge mechanism 4 is connected to the central tube 10.

[0018] Specifically, during operation, the drive mechanism 5 drives the cylinder 1 to rotate, which in turn drives the inner cylinder 2 and the first guide plate 6 to rotate. High-temperature or heat-to-be-heated materials enter the rotating inner cylinder 2 via the feeding mechanism 3. Under the action of the rotating first guide plate 6, the material is continuously lifted and scattered, thus achieving gentle fluidization and ensuring sufficient contact and heat exchange between the material and the inner cylinder 2, the first guide plate 6, and the baffle 8. Compared to traditional fluidized bed heat exchangers, this reduces mechanical wear on the material and energy consumption of the system. Then, guided by the inclined first guide plate 6, the material slowly… The material moves toward the discharge mechanism 4 and is eventually discharged through the discharge mechanism 4. At the same time, the heat exchange medium enters the first heat exchange chamber 7 through the water inlet main pipe 11, flows along the axial direction of the cylinder 1 and exchanges heat. Then, the heat exchange medium is distributed to multiple second heat exchange chambers 9 through multiple connecting pipes 12, where it undergoes secondary heat exchange. Finally, the heat exchange medium flows into the central pipe 10 through the outlet 16 and is discharged. The outer first heat exchange chamber 7 and the inner second heat exchange chamber 9 enable the material to exchange heat with the heat exchange medium in two stages, thereby increasing the heat exchange area and improving the heat exchange efficiency.

[0019] In some embodiments, such as Figure 2 As shown, the feeding mechanism 3 includes an inclined feeding pipe 31 to ensure that the material can smoothly slide into the inner cylinder 2 by gravity. In this embodiment, the inclination angle of the feeding pipe 31 is 60°. A first flange port 32 is connected to the side wall of the feeding pipe 31. The first flange port 32 is used to install a temperature sensor to monitor the feeding temperature. The lower end of the feeding pipe 31 extends into the inner cylinder 2. A cylindrical protective cover 33 is fixedly sleeved on the outside of the feeding pipe 31. The protective cover 33 can prevent the operator from accidentally touching the high-temperature feeding pipe 31 and causing burns. The protective cover 33 is rotatably connected to the cylinder 1. Columns 13 are fixedly connected to both sides of the protective cover 33.

[0020] In some embodiments, such as Figure 2 As shown, the discharge mechanism 4 includes a collection section 41 rotatably sleeved at the end of the cylinder 1. The end of the collection section 41 away from the cylinder 1 is rotatably connected to the central tube 10. The bottom of the collection section 41 is connected to a discharge pipe 42, and a second flange port 43 is connected to the side wall of the discharge pipe 42. The second flange port 43 is used to install a temperature sensor to monitor the discharge temperature. Columns 13 are fixedly connected to both sides of the collection section 41. Specifically, the material enters the collection section 41 through the inner cylinder 2 and is discharged through the discharge pipe 42 under the action of gravity, realizing closed-loop automated discharge.

[0021] In some embodiments, a plurality of second guide plates 14 are fixedly connected to the baffle 8 and are inclined relative to the axis of the inner cylinder 2. The second guide plates 14 can absorb or release the heat of the material and transfer it to the second heat exchange chamber 9. At the same time, they can also drive the material to move toward the discharge mechanism 4, thereby further improving the heat exchange efficiency and promoting the flow of the material.

[0022] In some embodiments, such as Figure 5 As shown, the drive mechanism 5 includes a motor 51, which is driven by two rollers 52 located on both sides below the cylinder 1. Both rollers 52 are frictionally connected to the cylinder 1. Specifically, when the motor 51 is started, it drives the two rollers 52 to rotate synchronously. The two rollers 52 drive the cylinder 1 to rotate by friction. In addition, the motor 51 can be a variable frequency motor, which allows stepless speed adjustment, thereby controlling the residence time and mixing intensity of materials in the equipment to meet the needs of different materials.

[0023] In some embodiments, the end of the cylinder 1 near the feeding mechanism 3 is a conical outer conical structure, and the end of the inner cylinder 2 near the feeding mechanism 3 is a conical inner conical structure. The feeding mechanism 3 and the inner conical structure form a dynamic and static matching structure. When the inner conical structure rotates, it can pre-distribute the material and, under the guidance of the inner conical structure, uniformly feed the material into the inner cylinder 2.

[0024] In some embodiments, the end of the main water inlet pipe 11 near the feeding mechanism 3 is connected to multiple sub-pipes 15. In this embodiment, there are four sub-pipes 15. The end of the sub-pipe 15 away from the main water inlet pipe 11 passes through the central pipe 10 and is fixedly connected to the central pipe 10. The main water inlet pipe 11 is fixedly connected to the central pipe 10 through the four sub-pipes 15. The end of the sub-pipe 15 away from the main water inlet pipe 11 is connected to the first heat exchange chamber 7. Water flows from the main water inlet pipe 11 into the first heat exchange chamber 7 through the sub-pipes 15.

[0025] In some embodiments, such as Figure 2-4 As shown, an overflow port 16 is provided between the end of the second heat exchange chamber 9 near the discharge mechanism 4 and the central tube 10, and the heat exchange medium enters the central tube 10 from the second heat exchange chamber 9 through the overflow port 16.

[0026] The above embodiments can be combined with each other.

[0027] The above embodiments are not intended to limit the shape, material, structure, etc. of this utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A rotary guide plate type material heat exchanger, characterized in that: The device includes a feeding mechanism and a discharging mechanism arranged opposite to each other. A cylinder is rotatably connected between the feeding mechanism and the discharging mechanism. A drive mechanism for driving the cylinder to rotate is provided outside the cylinder. An inner cylinder is coaxially fixed inside the cylinder. Several first guide plates are fixedly connected to the inner side wall of the inner cylinder and are inclined relative to the axis of the inner cylinder. The gap between the inner cylinder and the cylinder forms a first heat exchange chamber. Several baffles are fixedly connected to the inner side wall of the inner cylinder and are arranged radially at intervals. The baffles are hollow and form a second heat exchange chamber. A central tube arranged coaxially with the inner cylinder is fixedly connected between the multiple baffles. The end of the central tube near the feeding mechanism is closed. The end of the central tube away from the feeding mechanism extends to the outside of the discharging mechanism and is rotatably connected to the discharging mechanism. A water inlet main pipe is coaxially fixed inside the end of the central tube away from the feeding mechanism. The water inlet main pipe is connected to the end of the first heat exchange chamber near the discharging mechanism. The end of the first heat exchange chamber near the feeding mechanism is connected to the second heat exchange chamber through a connecting pipe. The end of the second heat exchange chamber near the discharging mechanism is connected to the central tube.

2. The rotary guide plate type material heat exchanger according to claim 1, characterized in that: The feeding mechanism includes an inclined feeding pipe, the lower end of which extends into the inner cylinder. A cylindrical protective cover is fixedly fitted over the feeding pipe, and the protective cover is rotatably connected to the cylinder.

3. The rotary guide plate type material heat exchanger according to claim 1, characterized in that: The discharge mechanism includes a collection part rotatably sleeved on the end of the cylinder, the end of the collection part away from the cylinder being rotatably connected to the central tube, and the bottom of the collection part being connected to a discharge pipe.

4. A rotary guide plate type material heat exchanger according to claim 1, characterized in that: Several second guide plates are fixedly connected to the baffle plate and are inclined relative to the axis of the inner cylinder.

5. A rotary guide plate type material heat exchanger according to claim 1, characterized in that: The driving mechanism includes a motor, which is driven by two rollers located on both sides below the cylinder. Both rollers are frictionally driven by the cylinder.

6. A rotary guide plate type material heat exchanger according to claim 1, characterized in that: The cylinder and inner cylinder are tapered at the end near the feeding mechanism.

7. A rotary guide plate type material heat exchanger according to claim 1, characterized in that: The end of the main water inlet pipe near the feeding mechanism is connected to multiple sub-pipes. The end of the sub-pipes away from the main water inlet pipe passes through the central pipe and is fixedly connected to the central pipe. The end of the sub-pipes away from the main water inlet pipe is connected to the first heat exchange chamber.

8. A rotary guide plate type material heat exchanger according to claim 1, characterized in that: An overflow port is provided between the end of the second heat exchange chamber near the discharge mechanism and the central tube.

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