Spiral heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a spiral heat exchanger which comprises a shell, a threaded plate is fixedly connected in the inner wall of the shell, the interior of the threaded plate is a gas circulation area, the area between the threaded plate and the shell is a water flow area, and the effect of dredging gas can be achieved through a spiral plate. The water flow area can play a role in dredging the water flow, the unique spiral structure design is adopted, that is, the threaded plate fixed on the inner wall of the shell is combined with the spoiler on the rotating rod, so that the contact area and the contact time of the gas and the water flow are greatly increased, and due to the structure, when the gas flows in the spiral channel, the gas flow can be dredged; the multi-group rotating rods and the spoilers on the multi-group rotating rods not only play a role in guiding fluid to flow, but also can promote continuous updating of a fluid boundary layer through a disturbance effect, heat resistance is reduced, heat transfer is quicker and more effective, and heat exchange efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a spiral heat exchanger. Background Art

[0002] A heat exchanger is a device that transfers heat from a hot fluid to a cold fluid. Heat exchangers have important applications in life and industrial production. Due to the pursuit of a larger heat exchange area, traditional heat exchangers generally occupy a large area, and therefore have disadvantages such as high installation space requirements and inconvenient maintenance. Therefore, how to reduce the volume of the heat exchanger while ensuring sufficient heat exchange area is an urgent problem that needs to be solved in the industry.

[0003] The patent document with the authorized announcement number CN219607795U discloses a spiral plate heat exchanger, which belongs to the field of heat exchanger technology. A spiral is installed in a semicircular shell, a core assembly is installed in the middle of the spiral, a steam conduit is installed on the right side of the middle part of the top of the semicircular shell, and a steam side interface is installed on the top of the steam conduit. When the cold side medium (process medium) enters the external spiral of the heat exchanger from the cold side inlet of the heat exchanger, passes through the spiral channel, and finally converges at the core part, and then flows out of the heat exchanger, the hot side medium (steam) flows in from the inlet at the center of the heat exchanger, flows through the spiral channel, and finally flows out from the outside of the spiral. The strength and rigidity of the core can be improved by using a thick-walled half-tube, and the small half-tube structure increases the steam side expansion space, reduces the steam flow rate, and reduces the impact on the core. At the same time, the strength and rigidity of the entire core are increased, and the fixed base can make the spiral plate heat exchanger more firm and not easy to shake when placed in use, thereby greatly improving the service life of the equipment and reducing maintenance costs.

[0004] When the above device is implemented, the gas and the water flow exchange heat during the flow process. The spiral heat exchange can enhance the heat exchange, but the heat exchange between the gas and the water flow during the flow process is not sufficient. Utility Model Content

[0005] The purpose of the present utility model is to provide a spiral heat exchanger, which solves the problem that when the above device is implemented, the gas and water flow exchange heat during the flow process, and the spiral heat exchange can enhance the heat exchange, but the heat exchange between the gas and the water flow during the flow is not sufficient.

[0006] An embodiment of the present application provides a spiral heat exchanger, comprising a shell, wherein a threaded plate is fixedly connected to the inner wall of the shell, the interior of the threaded plate is a gas circulation area, and the area between the threaded plate and the shell is a water flow area. The inner wall of the shell located inside the gas circulation area is rotatably installed with multiple groups of rotating rods, and the outer walls of the multiple groups of rotating rods are respectively fixedly connected to multiple groups of baffles, and a cover is provided at the upper end of the shell.

[0007] By adopting the above technical solution, the spiral plate can play a role in clearing the gas, and the water flow area can play a role in clearing the water flow. The unique spiral structure design, that is, the combination of the threaded plate fixed on the inner wall of the shell and the baffle on the rotating rod, greatly increases the contact area and contact time between the gas and the water flow. This structure enables the gas to exchange heat with the water more fully and evenly when flowing in the spiral channel, thereby significantly improving the heat exchange efficiency. The multiple sets of rotating rods and the baffles thereon not only play a role in guiding the fluid flow, but more importantly, when these rotating rods rotate at an appropriate speed, they can generate strong fluid disturbances. This disturbance effect promotes the continuous renewal of the fluid boundary layer, reduces thermal resistance, makes heat transfer more rapid and effective, and further improves the heat exchange efficiency.

[0008] Optionally, an air inlet pipe and a water inlet pipe are fixedly connected to the outer wall of the shell, the air inlet pipe corresponds to the air inlet end of the spiral plate, and the water inlet pipe corresponds to the water flow area.

[0009] By adopting the above technical solution, the shell can fix the air inlet pipe and the water inlet pipe, the air inlet pipe can transport air to the inside of the spiral plate, and the water inlet pipe can let water into the water flow area.

[0010] Optionally, an air outlet pipe is fixedly connected to the lower end of the shell, and a water outlet pipe is fixedly connected to the upper end of the cover. The air outlet pipe corresponds to the position of the air outlet end of the spiral tube, and the water outlet pipe corresponds to the position of the water flow area in the center of the shell.

[0011] By adopting the above technical solution, the gas flowing inside the spiral plate can be discharged through the air outlet pipe, and the water outlet pipe can discharge the water flowing in the water flow area.

[0012] Optionally, the ports of the air inlet pipe, the air outlet pipe, the water inlet pipe and the water outlet pipe are respectively fixedly connected with flanges.

[0013] By adopting the above technical solution, the ports of the air inlet pipe, the air outlet pipe, the water inlet pipe and the water outlet pipe can be conveniently connected to other pipes through the provision of flanges.

[0014] Optionally, a support ring is fixedly connected to the outer wall of the shell, and a lower end of the support ring is fixedly connected to multiple groups of supporting legs.

[0015] By adopting the above technical solution, the shell can fix the support ring, the support ring can fix the support legs, and the support legs can support the shell.

[0016] Optionally, a sealing groove is provided on the upper side of the shell, and a sealing disk is fixedly connected to the lower end of the cover located inside the sealing groove, and the sealing disk is in contact with the spiral plate and the shell.

[0017] By adopting the above technical solution, the sealing groove can be used to place the sealing disc, and the cover can fix the sealing disc, and then the sealing disc can seal the inside of the shell.

[0018] Optionally, a fixing ring is fixedly connected to the outer wall of the shell, and a plurality of groups of bolts are rotatably passed through the interior of the cover, and the plurality of groups of bolts are threadedly connected to the fixing ring.

[0019] By adopting the above technical solution, the housing can fix the fixing ring, and the fixing ring can fix the cover with the cooperation of the bolts.

[0020] Optionally, a plurality of connection blocks are fixedly connected to the inner wall of the spiral plate.

[0021] By adopting the above technical solution, the spiral plate can be further fixed by the connecting block.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The technical solution of the present application can clear the gas through the spiral plate, and the water flow area can clear the water flow. The unique spiral structure design, that is, the combination of the threaded plate fixed on the inner wall of the shell and the baffle on the rotating rod, greatly increases the contact area and contact time between the gas and the water flow. This structure enables the gas to exchange heat with the water more fully and evenly when flowing in the spiral channel, thereby significantly improving the heat exchange efficiency. The multiple groups of rotating rods and the baffles thereon not only guide the flow of fluid, but more importantly, when these rotating rods rotate at an appropriate speed, they can generate strong fluid disturbances. This disturbance effect promotes the continuous renewal of the fluid boundary layer, reduces thermal resistance, makes heat transfer more rapid and effective, and further improves the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0025] Figure 1 This is a front view schematic diagram of a spiral heat exchanger of the utility model;

[0026] Figure 2 This is a schematic top view of the shell portion of a spiral heat exchanger of the present invention;

[0027] Figure 3 The utility model is a spiral heat exchanger Figure 1 Enlarged view of point A in the middle;

[0028] Figure 4 This is a front view schematic diagram of a spiral heat exchanger cover according to the present invention.

[0029] In the figure: 1. Shell; 2. Spiral plate; 3. Water flow area; 4. Rotating rod; 5. Baffle; 6. Sealing groove; 7. Sealing disk; 8. Cover; 9. Bolt; 10. Fixing ring; 11. Air inlet pipe; 12. Water outlet pipe; 13. Air outlet pipe; 14. Water inlet pipe; 15. Flange; 16. Support ring; 17. Support foot; 18. Connecting block. DETAILED DESCRIPTION

[0030] See also Figure 1-4 The utility model provides a technical solution: a spiral heat exchanger, comprising a shell 1, a threaded plate fixedly connected to the inner wall of the shell 1, the interior of the threaded plate being a gas flow area, the area between the threaded plate and the shell 1 being a water flow area 3, multiple groups of rotating rods 4 being rotatably mounted on the inner wall of the shell 1 located inside the gas flow area, multiple groups of baffles 5 being fixedly connected to the outer walls of the multiple groups of rotating rods 4, and a cover 8 being provided at the upper end of the shell 1;

[0031] A sealing groove 6 is provided on the upper side of the shell 1. The lower end of the cover 8 located inside the sealing groove 6 is fixedly connected to a sealing disk 7. The sealing disk 7 is in contact with the spiral plate 2 and the shell 1. A fixing ring 10 is fixedly connected to the outer wall of the shell 1. Multiple sets of bolts 9 are rotatably passed through the interior of the cover 8, and the multiple sets of bolts 9 are threadedly connected to the fixing ring 10.

[0032] In the technical solution of the present invention, the spiral plate 2 can play a role in clearing the gas, and the water flow area 3 can play a role in clearing the water flow. The unique spiral structure design, that is, the threaded plate fixed on the inner wall of the shell 1 is combined with the baffle 5 on the rotating rod 4, which greatly increases the contact area and contact time between the gas and the water flow. This structure enables the gas to exchange heat with the water more fully and evenly when flowing in the spiral channel, thereby significantly improving the heat exchange efficiency. The multiple groups of rotating rods 4 and the baffles 5 thereon not only play a role in guiding the flow of fluid, but more importantly, when these rotating rods 4 rotate at an appropriate speed, they can generate strong fluid disturbances. This disturbance effect promotes the continuous renewal of the fluid boundary layer, reduces thermal resistance, makes heat transfer more rapid and effective, and further improves the heat exchange efficiency.

[0033] In addition, the sealing groove 6 can be provided to place the sealing disc 7, and the cover 8 can fix the sealing disc 7. Then the sealing disc 7 can seal the inside of the shell 1, and the shell 1 can fix the fixing ring 10, and the fixing ring 10 can fix the cover 8 with the cooperation of the bolt 9.

[0034] In the technical solution of the present utility model, Figure 2As shown, the inner wall of the spiral plate 2 is fixedly connected with multiple groups of connecting blocks 18, which can further fix the spiral plate 2 through the connecting blocks 18.

[0035] In the technical solution of the present utility model, Figure 1 and Figure 2 As shown, the outer wall of the shell 1 is fixedly connected with an air inlet pipe 11 and a water inlet pipe 14. The air inlet pipe 11 corresponds to the air inlet end of the spiral plate 2, and the water inlet pipe 14 corresponds to the water flow area 3. The shell 1 can fix the air inlet pipe 11 and the water inlet pipe 14, and the air inlet pipe 11 can play a role in conveying air to the inside of the spiral plate 2, and the water inlet pipe 14 can play a role in letting water into the water flow area 3. The lower end of the shell 1 is fixedly connected with an air outlet pipe 13, and the upper end of the cover 8 is fixedly connected with a water outlet pipe 12. The air outlet pipe 13 is fixed to the spiral pipe 2. The position of the air outlet end corresponds to that of the water outlet pipe 12 and the position of the water flow area 3 in the center of the shell 1. The air outlet pipe 13 can discharge the gas flowing inside the spiral plate 2, and the water outlet pipe 12 can discharge the water flowing in the water flow area 3. The ports of the air inlet pipe 11, the air outlet pipe 13, the water inlet pipe 14 and the water outlet pipe 12 are respectively fixedly connected with flanges 15. The setting of the flange 15 can facilitate the connection of the ports of the air inlet pipe 11, the air outlet pipe 13, the water inlet pipe 14 and the water outlet pipe 12 to other pipes.

[0036] In the technical solution of the present utility model, Figure 1 As shown, the outer wall of the shell 1 is fixedly connected to a support ring 16, and the lower end of the support ring 16 is fixedly connected to multiple groups of support legs 17. The shell 1 can fix the support ring 16, and the support ring 16 can fix the support legs 17, and the support legs 17 can support the shell 1.

[0037] When in use, first, the shell 1 can be used to fix the air inlet pipe 11 and the water inlet pipe 14, and the air inlet pipe 11 can play a role of conveying air to the inside of the spiral plate 2, and the water inlet pipe 14 can play a role of letting water into the water flow area 3, and the air outlet pipe 13 can play a role of discharging the gas flowing inside the spiral plate 2, and the water outlet pipe 12 can play a role of discharging the water flowing in the water flow area 3, and the setting of the flange 15 can facilitate the connection of the ports of the air inlet pipe 11, the air outlet pipe 13, the water inlet pipe 14 and the water outlet pipe 12 to other pipes, and then the spiral plate 2 can play a role of dredging the gas, and the water flow area 3 can play a role of dredging the water flow. The unique spiral structure design, that is, the threaded plate fixed on the inner wall of the shell 1 is combined with the baffle 5 on the rotating rod 4, greatly increases the contact area and contact time between the gas and the water flow. The structure enables the gas to exchange heat with water more fully and evenly when flowing in the spiral channel, thereby significantly improving the heat exchange efficiency. The multiple sets of rotating rods 4 and the baffles 5 thereon not only guide the flow of fluid, but more importantly, when these rotating rods 4 rotate at an appropriate speed, they can generate strong fluid disturbances. This disturbance effect promotes the continuous renewal of the fluid boundary layer, reduces thermal resistance, makes heat transfer more rapid and effective, and further improves the heat exchange efficiency. The fixing ring 10 can fix the cover 8 with the cooperation of the bolts 9, and the setting of the sealing groove 6 can place the sealing disk 7, and the cover 8 can fix the sealing disk 7, and then the sealing disk 7 can seal the inside of the shell 1, thereby facilitating the cleaning and maintenance of the inside of the shell 1 after the cover 8 is removed.

Claims

1. A spiral heat exchanger, characterized in that: The invention comprises a shell (1), wherein a threaded plate is fixedly connected to the inner wall of the shell (1), the interior of the threaded plate is a gas circulation area, and the area between the threaded plate and the shell (1) is a water flow area (3), and the inner wall of the shell (1) located inside the gas circulation area is rotatably mounted with multiple groups of rotating rods (4), and the outer walls of the multiple groups of rotating rods (4) are respectively fixedly connected to multiple groups of baffles (5), and the upper end of the shell (1) is provided with a cover (8).

2. The spiral heat exchanger according to claim 1, characterized in that: An air inlet pipe (11) and a water inlet pipe (14) are fixedly connected to the outer wall of the shell (1); the air inlet pipe (11) corresponds to the air inlet end of the spiral plate (2); and the water inlet pipe (14) corresponds to the water flow area (3).

3. The spiral heat exchanger according to claim 2, characterized in that: The lower end of the shell (1) is fixedly connected to an air outlet pipe (13), and the upper end of the cover (8) is fixedly connected to a water outlet pipe (12). The air outlet pipe (13) corresponds to the position of the air outlet end of the spiral tube, and the water outlet pipe (12) corresponds to the position of the central water flow area (3) of the shell (1).

4. The spiral heat exchanger according to claim 3, characterized in that: The ends of the air inlet pipe (11), the air outlet pipe (13), the water inlet pipe (14) and the water outlet pipe (12) are respectively fixedly connected with flanges (15).

5. The spiral heat exchanger according to claim 1, characterized in that: A support ring (16) is fixedly connected to the outer wall of the shell (1), and a plurality of groups of supporting legs (17) are fixedly connected to the lower end of the support ring (16).

6. The spiral heat exchanger according to claim 1, characterized in that: A sealing groove (6) is provided on the upper side of the shell (1), and a sealing disk (7) is fixedly connected to the lower end of the cover (8) located inside the sealing groove (6), and the sealing disk (7) is in contact with the spiral plate (2) and the shell (1).

7. The spiral heat exchanger according to claim 6, characterized in that: A fixing ring (10) is fixedly connected to the outer wall of the housing (1), and a plurality of groups of bolts (9) are rotatably passed through the interior of the cover (8), and the plurality of groups of bolts (9) are threadedly connected to the fixing ring (10).

8. The spiral heat exchanger according to claim 2, characterized in that: Multiple groups of connection blocks (18) are fixedly connected to the inner wall of the spiral plate (2).

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