Rotary in-line tube heat exchanger

Abstract

The invention discloses a rotary type in-line tube heat exchanger which comprises a machine body barrel, a heat exchange system, a feeding device, a discharging device, a transmission system and a supporting system. In a heat exchange system, forced circulation of a heat exchange medium can be achieved, a certain heat exchange temperature can be ensured, no heat exchange dead zone exists, and the heat transfer efficiency is higher.

Description

Technical Field

[0001] The invention belongs to the technical field of heat exchange equipment, and in particular relates to a rotary in-line tube heat exchanger. Background Art

[0002] At present, the heating system structure used in rotary drum drying equipment cannot cool the material or accurately control the temperature of the material; other structural forms of coolers are relatively complex in structure, have small output, have heat exchange dead zones, and have relatively low cooling efficiency for solid and liquid materials.

[0003] In view of this, the present invention is proposed. Summary of the invention

[0004] The object of the present invention is to provide a rotary in-line tube heat exchanger which can force circulation and accurately control temperature without heat exchange dead zone.

[0005] To achieve the above object, the present invention provides a rotary in-line tube heat exchanger, comprising:

[0006] A fuselage barrel, wherein there is an acute angle between the fuselage barrel and the horizontal line, a feed end plate is provided at a higher end of the fuselage barrel, a feed interface is provided on the feed end plate, and a discharge end plate is provided at a lower end of the fuselage barrel;

[0007] A heat exchange system, the heat exchange system comprises a heat exchange tube, a collecting tube, a delivery tube, a fresh heat exchange medium storage chamber and a used heat exchange medium storage chamber, the heat exchange tube has an even number of circles, and is arranged in the axial direction in the fuselage cylinder body, each circle of heat exchange tubes has a plurality of roots, and the number of heat exchange tubes in two adjacent circles is the same, one end of each heat exchange tube passes through the feed end plate, and the other end passes through the discharge end plate, and one end of two radially adjacent heat exchange tubes passing through the feed end plate is connected by a connecting pipe; the collecting tube is located on the discharge end plate, and the number of circles is the same as the number of circles of the heat exchange tubes, each circle of collecting tubes corresponds to a circle of heat exchange tubes, and one end of each heat exchange tube passing through the discharge end plate is located in the corresponding collecting tube, and each circle of collecting tubes is independently connected to a delivery tube for conveying or outputting heat exchange medium, the delivery pipe for conveying heat exchange medium is connected to the fresh heat exchange medium storage chamber, and the delivery pipe for outputting heat exchange medium is connected to the used heat exchange medium storage chamber;

[0008] A feeding device, the feeding device comprising a feeding pipe and a feeding screw, the feeding pipe outlet is connected to the feeding port of the feeding screw, and the feeding port of the feeding screw is connected to the feeding interface on the feeding end plate;

[0009] A discharging device, the discharging device is close to one side of the discharging end plate and is connected to the fuselage barrel;

[0010] A transmission system, the transmission system comprising a large gear ring sleeved on the outside of the fuselage barrel, a small gear ring meshing with the large gear ring, an electrode reducer connected to the small gear ring, and a support frame;

[0011] The support system includes a front roller ring mounted on the front end of the fuselage barrel, a rear roller ring mounted on the rear end of the fuselage barrel, a front roller support device supporting the front roller ring, and a rear roller support device supporting the rear roller ring.

[0012] In the rotary in-line tube heat exchanger of the present invention, a partition is provided in each circle of collecting tubes to divide the collecting tubes into several small sections, and each small section of the collecting tubes is connected to at least one delivery pipe for delivering or outputting heat exchange medium.

[0013] In the rotary in-line tube heat exchanger described in the present invention, the even-numbered circles of heat exchange tubes are alternately distributed as water inlet tubes and water outlet tubes, the water inlet tubes are used to transport fresh heat exchange medium into the fuselage cylinder, and the water outlet tubes are used to output old heat exchange medium out of the fuselage cylinder. The collecting pipe corresponding to the water inlet tubes is the water inlet collecting pipe, which is connected to the fresh heat exchange medium storage chamber, and the collecting pipe corresponding to the water outlet tubes is the water outlet collecting pipe, which is connected to the old heat exchange medium storage chamber.

[0014] The rotary in-line tube heat exchanger described in the present invention is also provided with a knocker on the body cylinder.

[0015] The rotary in-line tube heat exchanger described in the present invention has a free floating end formed by a packing sealing structure between the feed end plate and the heat exchange tubes, and a fixed end formed by strength welding and sealing welding between the discharge end plate and the heat exchange tubes. The packing sealing structure is composed of a packing box, a packing and a packing gland. By pressing the packing gland, the packing can be evenly filled between the heat exchange tubes and the packing box. This structure can not only play a sealing role, but also play a certain supporting role for one end of the heat exchange tubes. When the equipment is running, the cylinder, the packing box, the packing, and the heat exchange tubes are all in a synchronous rotation state. This situation can make the packing uniformly stressed in all radial directions, and the parts of this structure are all in a relatively static state, which can play a good sealing effect. When the equipment is heated and used, the heat exchange tube will expand due to heat, that is, it will axially extend from the discharge fixed end to the feed free end. Here is a packing structure, which can also meet the axial free extension of the heat exchange tube. Therefore, this packing sealing structure can simultaneously meet the sealing, support, and free suspension extension.

[0016] In the rotary in-line tube heat exchanger described in the present invention, a distribution shaft is provided on the discharge end plate, and the fresh heat exchange medium storage chamber and the old heat exchange medium storage chamber are provided on the distribution shaft.

[0017] In the rotary in-line tube heat exchanger described in the present invention, the distribution shaft is connected to the discharge end plate by strength welding and sealing welding, and is connected and fixed by a reinforcing rib plate.

[0018] Beneficial effects of the present invention:

[0019] 1. The equipment is a rotary in-line tube drying (cooling) machine, which can realize the rotation of the main machine, with a wider heat exchange area, large output and no crystal crushing;

[0020] 2. In the heat exchange system, the forced circulation of heat exchange medium can be realized, a certain heat exchange temperature can be ensured, there is no heat exchange dead zone, and the heat transfer efficiency is higher;

[0021] 3. Strong functionality, can heat or cool materials, and can achieve precise temperature control of materials BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the rotary in-line tube heat exchanger of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the heat exchange system of the present invention;

[0024] Figure 3 It is a right view of the rotary in-line tube heat exchanger;

[0025] Figure 4 It is a left view of the rotary in-line tube heat exchanger.

[0026] The accompanying drawings illustrate:

[0027] 1 Feeding screw; 2 Feeding pipe; 3 Beater; 4 Front roller ring; 5 Large gear ring; 6 Body barrel; 7 Rear roller ring; 8 Discharging device; 9 Rear supporting roller device; 10 Electrode reducer; 11 Small gear ring; 12 Front supporting roller device; 13 Inlet tube array Ⅰ; 14 Outlet tube array Ⅰ; 15 Inlet tube array Ⅱ; 16 Outlet tube array Ⅱ; 17 Discharging end plate; 18 Inlet manifold Ⅰ; 19 Outlet manifold Ⅰ; 20 Inlet manifold Ⅱ; 21 Outlet manifold Ⅱ; 22 Distribution shaft; 23 Connecting flange; 24 Inlet delivery pipe Ⅰ; 25 Outlet delivery pipe Ⅰ; 26 Inlet delivery pipe Ⅱ; 27 Outlet delivery pipe Ⅱ; 28 Discharging port; 29 Feeding end plate; 30 Connecting pipe; 31 Reinforcement rib plate; 32 Partition plate. DETAILED DESCRIPTION

[0028] The present invention is described in detail below by way of examples. It is necessary to point out that the following examples are only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Those skilled in the art in this field can make some non-essential improvements and adjustments to the present invention based on the above content of the present invention.

[0029] like Figure 1The figure shows the structure diagram of the rotary in-line tube heat exchanger of the present invention. The rotary in-line tube heat exchanger of the present invention comprises a body barrel 6, a heat exchange system, a feeding device, a discharging device, a transmission system and a support system. There is an acute angle between the body barrel 6 and the horizontal line, and a feeding end plate 29 is provided at the upper end of the body barrel 6, and a feeding interface is provided on the feeding end plate 29, and a discharging end plate 17 is provided at the lower end of the body barrel 6.

[0030] A heat exchange system, the heat exchange system comprises heat exchange tubes, collecting tubes, delivery tubes, a fresh heat exchange medium storage chamber and a used heat exchange medium storage chamber. The heat exchange tubes have an even number of circles, which are arranged in the axial direction in the fuselage barrel. The number of roots of each circle of heat exchange tubes is a plurality of roots, and the number of roots of two adjacent circles of heat exchange tubes is the same. One end of each heat exchange tube passes through the feed end plate 29, and the other end passes through the discharge end plate 17. One end of two radially adjacent heat exchange tubes passing through the feed end plate is connected by a connecting tube 30; the collecting tube is located on the discharge end plate 17, and the number of circles is the same as the number of circles of the heat exchange tubes. Each circle of collecting tubes corresponds to a circle of heat exchange tubes, and one end of each heat exchange tube passing through the discharge end plate 17 is located in the corresponding collecting tube. Each circle of collecting tubes is independently connected to a delivery tube for conveying or outputting heat exchange medium, and the delivery pipe for conveying heat exchange medium is connected to the fresh heat exchange medium storage chamber, and the delivery pipe for outputting heat exchange medium is connected to the used heat exchange medium storage chamber;

[0031] like Figure 1 , Figure 2 and Figure 3As shown, the fuselage barrel 6 is cylindrical, and there are 4 circles of heat exchange tubes in the fuselage barrel 6, each circle of heat exchange tubes is evenly distributed along the circumferential direction, and the circle of heat exchange tubes closest to the inner wall of the fuselage barrel 6 is the first circle of heat exchange tubes, the number of roots of the first circle of heat exchange tubes is the same as the number of roots of the second circle of heat exchange tubes, the number of roots of the third circle of heat exchange tubes is the same as the number of roots of the fourth circle of heat exchange tubes, the number of roots of the first circle of heat exchange tubes and the third circle of heat exchange tubes may be the same or different, and the two ends of the first circle of heat exchange tubes and the second circle of heat exchange tubes that pass through the feed end plate 29 and are radially adjacent are connected by a connecting pipe 30, and the two ends of the third circle of heat exchange tubes and the fourth circle of heat exchange tubes that pass through the feed end plate 29 and are radially adjacent are connected by a connecting pipe 30, and the heat exchange tubes and the feed end plate 29 are supported by a packing sealing structure to form a free floating end; the heat exchange tubes and the discharge end plate 17 are connected to form a fixed end by strength welding and sealing welding. The four circles of heat exchange tubes are alternately distributed as water inlet tubes and water outlet tubes. The water inlet tubes are used to transport fresh heat exchange medium into the fuselage barrel 6, and the water outlet tubes are used to output old heat exchange medium out of the fuselage barrel 6. The collecting pipe corresponding to the water inlet tubes is the water inlet collecting pipe, which is connected to the fresh heat exchange medium storage chamber through the water inlet conveying pipe, and the collecting pipe corresponding to the water outlet tubes is the water outlet collecting pipe, which is connected to the old heat exchange medium storage chamber through the water outlet conveying pipe. The first circle of heat exchange tubes is the water inlet tubes I13, the second circle of heat exchange tubes is the water outlet tubes I14, the water inlet tubes I13 and the water outlet tubes I14 are a group, and a group of fluid circuits are formed through the connecting pipe 30 at the feed end. The third circle of heat exchange tubes is the water inlet tubes II 15, and the fourth circle of heat exchange tubes is the water outlet tubes II 16. The water inlet tubes II 15 and the water outlet tubes II 16 are a group, and a group of fluid circuits are formed through the connecting pipe 30 at the feed end. The inlet and outlet manifolds are arranged outside the discharge end plate 17 of the fuselage barrel 6. The inlet and outlet manifolds can form an inlet and outlet manifold cavity together with the discharge end plate 17. The heat exchange tubes are directly connected to the inlet and outlet manifold cavity or the outlet manifold cavity after passing through the discharge end plate 17, or the inlet and outlet manifolds are independent pipelines, and the space inside the pipelines is the inlet and outlet manifold cavity or the outlet manifold cavity. The heat exchange tubes are passed through the discharge end plate 17 and then penetrate into the inlet and outlet manifold cavity or the outlet manifold cavity. Figure 2 and Figure 3As shown, the inlet manifold and the outlet manifold are integrated with the discharge end plate 17, and an inlet manifold cavity and an outlet manifold cavity are formed on the outer surface of the discharge end plate 17. The inlet manifold I13 and the inlet manifold II15 are connected to the inlet manifold I18 and the inlet manifold II20 respectively, and the inlet manifold I13 and the inlet manifold II15 are connected to the fresh heat exchange medium storage chamber through the inlet delivery pipe I24 and the inlet delivery pipe II26 respectively, and the outlet manifold I14 and the outlet manifold II16 are connected to the outlet manifold I19 and the outlet manifold II21 respectively, and the outlet manifold I19 and the outlet manifold II21 are connected to the old heat exchange medium storage chamber through the outlet delivery pipe I25 and the outlet delivery pipe II27 respectively. Figure 2 As shown, the fresh heat exchange medium storage chamber and the old heat exchange medium storage chamber can be coupled in different cavities of the same device, such as the distribution shaft 22, or can be independent different devices. The distribution shaft 22 can be directly arranged on the discharge end plate 17, one end of which is connected to the discharge end plate 17 by strength welding and sealing welding, and is fixed by a reinforcing rib plate 31, and the other end is connected to the connecting flange 23, and the connecting flange 23 is connected to an external rotating joint.

[0032] In a preferred embodiment, a partition 32 is provided on each circle of collecting pipes to divide the collecting pipes into several independent small sections, and each small section of the collecting pipes is connected to at least one delivery pipe for delivering or outputting the heat exchange medium, such as Figure 3 As shown, three partitions are provided on the water inlet collecting pipe I18, the water inlet collecting pipe II 20, the water outlet collecting pipe I19 and the water outlet collecting pipe II 21, which divide the water inlet collecting pipe I18, the water inlet collecting pipe II 20, the water outlet collecting pipe I19 and the water outlet collecting pipe II 21 into three independent cavities, and each independent cavity is connected to an inlet conveying pipe or an outlet conveying pipe for fluid transportation in the independent cavity, which is beneficial to the inflow of water and the outflow of water.

[0033] The feeding device includes a feeding pipe 2 and a feeding screw 1. The discharge port of the feeding pipe 2 is connected to the feeding port of the feeding screw 1. The discharge port of the feeding screw 1 is connected to the feeding interface on the feeding end plate 29. Specifically, they can be connected by bolts and a certain sealing structure. This is a conventional technology in the field. Those skilled in the art can select a suitable connection method according to actual conditions.

[0034] The discharge device 8 is close to one side of the discharge end plate 17 and is connected to the fuselage barrel 6. A discharge port 28 is provided at the bottom of the discharge device 8. The discharge device 8 can be connected to the fuselage barrel 6 by bolts and a certain sealing structure, which is a conventional technology in the field. Those skilled in the art can select a suitable connection method according to actual conditions.

[0035] The transmission system includes a large gear ring 5 mounted on the outside of the fuselage barrel 6, a small gear ring 11 meshing with the large gear ring 5, an electrode reducer 10 connected to the small gear ring 11, and a supporting frame. The electrode reducer 10 drives the small gear ring 11 and the large gear ring 5 to provide power for the operation of the fuselage barrel 6.

[0036] The support system includes a front roller ring 4 sleeved on the front end of the fuselage barrel 6, a rear roller ring 7 sleeved on the rear end of the fuselage barrel 6, a front roller support device 12 supporting the front roller ring 4, and a rear roller support device 9 supporting the rear roller ring 7. The front roller ring 4, the rear roller ring 7, the front roller support device 12 and the rear roller support device 9 form a support transmission system to provide transmission support for the operation of the fuselage barrel 6.

[0037] In a preferred embodiment, a knocker 3 is also provided on the fuselage barrel 6 .

[0038] When the equipment is in operation, the material enters the body barrel 6 from the feed pipe 2 under the driving action of the feed screw 1. The material moves in the body barrel 6 and fully contacts with the inlet and outlet water tubes to perform efficient heat exchange. When the equipment is in operation, the heat exchange medium enters the outer cavity of the distribution shaft 22 from the rotary joint. The distribution shaft 22 distributes the heat exchange medium to each water inlet delivery pipe on the circumference. The water inlet delivery pipe delivers the heat exchange medium to the water inlet collection pipe, and then flows to each water inlet tube in the barrel through the water inlet collection pipe. The heat exchange medium in the water inlet tube is heated by the heat transfer effect of the tube wall and the heat exchange medium in the barrel is heated by the heat transfer effect of the tube wall. The heat exchange is completed by the material, and at the same time, the heat exchange fluid medium in the water inlet tube flows to the return water tube through the connecting pipe 30 under the action of the rear pressure, and the heat exchange medium in the return water tube also completes a certain heat exchange, and then is collected in the return water collecting pipe, and the fluid medium after heat exchange is transported to the inner circle cavity of the distribution shaft 22 through the return water delivery pipe, and finally flows to the external rotary joint to form a whole process loop; in this process, the precise temperature control of the material can be achieved by controlling the temperature and pressure of the inlet and outlet water, the feed amount of the material, and the speed of the main machine.

[0039] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims of the present invention.

Claims

1. A rotary in-line tube heat exchanger, characterized in that: include: A fuselage barrel, wherein there is an acute angle between the fuselage barrel and the horizontal line, a feed end plate is provided at a higher end of the fuselage barrel, a feed interface is provided on the feed end plate, and a discharge end plate is provided at a lower end of the fuselage barrel; A heat exchange system, the heat exchange system comprises a heat exchange tube, a collecting tube, a delivery tube, a fresh heat exchange medium storage chamber and a used heat exchange medium storage chamber, the heat exchange tube has an even number of circles, and is arranged in the axial direction in the fuselage cylinder body, each circle of heat exchange tubes has a plurality of roots, and the number of heat exchange tubes in two adjacent circles is the same, one end of each heat exchange tube passes through the feed end plate, and the other end passes through the discharge end plate, and one end of two radially adjacent heat exchange tubes passing through the feed end plate is connected by a connecting pipe; the collecting tube is located on the discharge end plate, and the number of circles is the same as the number of circles of the heat exchange tubes, each circle of collecting tubes corresponds to a circle of heat exchange tubes, and one end of each heat exchange tube passing through the discharge end plate is located in the corresponding collecting tube, and each circle of collecting tubes is independently connected to a delivery tube for conveying or outputting heat exchange medium, the delivery pipe for conveying heat exchange medium is connected to the fresh heat exchange medium storage chamber, and the delivery pipe for outputting heat exchange medium is connected to the used heat exchange medium storage chamber; A feeding device, the feeding device comprising a feeding pipe and a feeding screw, the feeding pipe outlet is connected to the feeding port of the feeding screw, and the feeding port of the feeding screw is connected to the feeding interface on the feeding end plate; A discharging device, the discharging device is close to one side of the discharging end plate and is connected to the fuselage barrel; A transmission system, the transmission system comprising a large gear ring sleeved on the outside of the fuselage barrel, a small gear ring meshing with the large gear ring, an electrode reducer connected to the small gear ring, and a support frame; The support system includes a front roller ring mounted on the front end of the fuselage barrel, a rear roller ring mounted on the rear end of the fuselage barrel, a front roller support device supporting the front roller ring, and a rear roller support device supporting the rear roller ring.

2. The rotary in-line tube heat exchanger according to claim 1, characterized in that: Each circle of collecting pipes is provided with partitions to divide the collecting pipes into a plurality of small sections, and each small section of the collecting pipes is connected to at least one conveying pipe for conveying or outputting heat exchange medium.

3. The rotary in-line tube heat exchanger according to claim 1, characterized in that: The even-numbered circles of heat exchange tubes are alternately distributed as water inlet tubes and water outlet tubes. The water inlet tubes are used to transport fresh heat exchange medium into the fuselage cylinder, and the water outlet tubes are used to output old heat exchange medium out of the fuselage cylinder. The collecting pipe corresponding to the water inlet tubes is the water inlet collecting pipe, which is connected to the fresh heat exchange medium storage chamber, and the collecting pipe corresponding to the water outlet tubes is the water outlet collecting pipe, which is connected to the old heat exchange medium storage chamber.

4. The rotary in-line tube heat exchanger according to claim 1, characterized in that: A knocker is also provided on the fuselage barrel.

5. The rotary in-line tube heat exchanger according to claim 1, characterized in that: The feed end plate and the heat exchange tubes are supported by a packing sealing structure to form a free floating end, and the discharge end plate and the heat exchange tubes are connected by strength welding and sealing welding to form a fixed end.

6. The rotary in-line tube heat exchanger according to claim 1, characterized in that: The discharging end plate is provided with a distribution shaft, and the fresh heat exchange medium storage chamber and the old heat exchange medium storage chamber are provided on the distribution shaft.

7. The rotary in-line tube heat exchanger according to claim 5, characterized in that: The distribution shaft is connected to the discharge end plate by strength welding and sealing welding, and is connected and fixed by a reinforcing rib plate.

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