Cooling device for casting of steam turbine casting

Abstract

The utility model relates to the technical field of steam turbine castings, in particular to a steam turbine casting cooling device which comprises a heat dissipation strengthening mechanism used for conducting heat dissipation on a casting, the heat dissipation strengthening mechanism is arranged on a base and comprises a supporting column arranged at the upper end of the base, and the upper end of the supporting column is fixedly connected with a supporting ring. The inner side of the supporting ring is rotationally connected with a roller, spray heads are evenly arranged on the inner side of the roller, the outer side of the supporting ring is fixedly connected with one end of a connecting frame, the other end of the connecting frame is fixedly connected with an annular plate, and an air pump is fixedly installed on the inner side of the annular plate. By designing the heat dissipation strengthening mechanism, the air pump sends outside air into the roller to be sprayed out through the spray head, the spray head can spray air to the periphery of a casting for heat dissipation conveniently, the roller can be driven to rotate, and the air spraying cooling effect of the spray head can be further strengthened conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of steam turbine castings, in particular to a steam turbine casting casting cooling device. Background Art

[0002] Steam turbine castings are a process in which metal is melted into a liquid that meets certain requirements and poured into a mold. After cooling, solidification and cleaning, a casting with a predetermined shape, size and performance is obtained. After the casting is cast, it needs to be cooled because its temperature is too high.

[0003] The cooling process of the casting is mostly in a single direction on its top and around, and the cooling area is limited, which in turn affects the overall cooling effect of the casting and makes its cooling process relatively lengthy. Then, it is inconvenient to feed the casting into the larger cooling area, which is not convenient to use.

[0004] The Chinese utility model patent with application number CN201921322238.0 proposes a casting heat dissipation device, which drives the grid support plate to move up and down by rotating the first threaded rod, and drives the first threaded tube and the second threaded tube to move up and down by rotating the second threaded rod and the third threaded rod, so that the position of the nozzle is adjusted following the movement of the grid fixing plate, thereby realizing cold air heat dissipation at the bottom of the casting, increasing the heat dissipation area, and improving the heat dissipation efficiency;

[0005] Although this casting heat dissipation device can dissipate heat, the blowing direction is relatively single, there are too many dead corners, the cooling speed is slow, and the heat dissipation effect is poor.

[0006] Therefore, a steam turbine casting cooling device is proposed. Utility Model Content

[0007] The utility model aims to provide a steam turbine casting cooling device to solve the problems of slow heat dissipation speed and poor heat dissipation effect proposed in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a turbine casting cooling device, the cooling device includes an enhanced heat dissipation mechanism for dissipating heat for the casting, the enhanced heat dissipation mechanism is arranged on a base, the enhanced heat dissipation mechanism includes a support column arranged at the upper end of the base, the upper end of the support column is fixedly connected to a support ring, the inner side of the support ring is rotatably connected to a roller, the inner side of the roller is evenly provided with nozzles, the outer side of the support ring is fixedly connected to one end of a connecting frame, the other end of the connecting frame is fixedly connected to a ring plate, the inner side of the ring plate is fixedly installed with an air pump, the outer side of the air pump is fixedly connected to an air pipe, the other end of the air pipe is fixedly connected to the ring plate, and the ring plate is rotatably connected to one side of the roller.

[0009] Preferably, a plurality of groups of gas delivery channels are evenly opened on the inner wall of the roller, and the plurality of groups of gas delivery channels are all connected to the ring plate.

[0010] Preferably, at least two groups of connecting frames are provided, and the connecting frames are arranged in an arc shape.

[0011] Preferably, a driving motor is arranged at the upper end of the base, the output shaft of the driving motor passes through the supporting column and is fixedly connected with a gear, the gear is meshed with a gear ring, and the gear ring is fixedly connected to the outer side of the roller.

[0012] Preferably, the cooling device also includes an automatic conveying mechanism for moving the casting, the automatic conveying mechanism includes a first servo motor arranged at the upper end of the base, the output shaft of the first servo motor is fixedly connected to the first screw rod, the first screw rod is threadedly connected to the support frame, a bracket is arranged on one side of the support frame, and the casting is arranged on the upper end of the bracket.

[0013] Preferably, a plurality of groups of air holes are evenly formed on the upper end of the bracket, and the plurality of groups of air holes are arranged parallel to each other.

[0014] Preferably, a slide rail is provided on the support frame, and a lifting platform is slidably connected inside the slide rail, and the lifting platform is fixedly connected to the bracket. A second servo motor is fixedly installed on the upper end of the lifting platform, and the output shaft of the second servo motor is fixedly connected to the second screw rod, and the outer side of the second screw rod is threadedly connected to a lever plate, and the lever plate is fixedly connected to the support frame.

[0015] Preferably, the lifting platform is arranged in parallel with the lever plate, and the lifting platform is matched with the slide rail.

[0016] Beneficial effects of the utility model:

[0017] 1. The utility model strengthens the heat dissipation mechanism by designing the air pump to send the outside air into the roller and spray it out through the nozzle, so that the nozzle can perform jet heat dissipation around the casting, and can drive the roller to rotate, so as to further enhance the jet cooling effect of the nozzle.

[0018] 2. The utility model designs an automatic conveying mechanism in conjunction with an enhanced heat dissipation mechanism to deliver castings of different heights and sizes to the center of the roller, which facilitates uniform heat dissipation of the castings in the enhanced heat dissipation mechanism, and by arranging air holes on the bracket, the bottom of the casting can also fully dissipate heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is an overall three-dimensional schematic diagram of a steam turbine casting cooling device according to an embodiment of the utility model;

[0021] Figure 2 A steam turbine casting cooling device according to an embodiment of the utility model Figure 1 Schematic diagram of the cross-section at AA in the middle;

[0022] Figure 3 A steam turbine casting cooling device according to an embodiment of the utility model Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0023] Figure 4 It is a partial explosion schematic diagram of a steam turbine casting cooling device according to an embodiment of the utility model.

[0024] The markings in the figure are: 1. base; 2. casting; 3. support column; 4. support ring; 5. roller; 6. nozzle; 7. connecting frame; 8. ring plate; 9. air pump; 10. air pipe; 11. air supply channel; 12. driving motor; 13. gear; 14. gear ring; 15. first servo motor; 16. first screw rod; 17. support frame; 18. bracket; 19. air vent; 20. lifting platform; 21. slide rail; 22. second servo motor; 23. second screw rod; 24. lever plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0026] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] like Figures 1 to 4As shown, a specific embodiment of the utility model provides a turbine casting cooling device, the cooling device includes an enhanced heat dissipation mechanism for dissipating heat for the casting 2, the enhanced heat dissipation mechanism is arranged on the base 1, the enhanced heat dissipation mechanism includes a support column 3 arranged at the upper end of the base 1, the upper end of the support column 3 is fixedly connected with a support ring 4, the inner side of the support ring 4 is rotatably connected with a roller 5, the inner side of the roller 5 is evenly provided with nozzles 6, the outer side of the support ring 4 is fixedly connected with one end of a connecting frame 7, the other end of the connecting frame 7 is fixedly connected with a ring plate 8, the inner side of the ring plate 8 is fixedly installed with an air pump 9, the outer side of the air pump 9 is fixedly connected with an air pipe 10, the other end of the air pipe 10 is fixedly connected to the ring plate 8, and the ring plate 8 is rotatably connected to one side of the roller 5.

[0028] Specifically, Figure 3 and Figure 4 As shown, the inner wall of the roller 5 is evenly provided with a plurality of groups of gas delivery channels 11, and the plurality of groups of gas delivery channels 11 are all connected with the ring plate 8. At least two groups of connecting frames 7 are provided, and the connecting frames 7 are arranged in an arc shape. A driving motor 12 is provided at the upper end of the base 1, and the output shaft of the driving motor 12 passes through the supporting column 3 and is fixedly connected with a gear 13, and the gear 13 is meshed with a gear ring 14, and the gear ring 14 is fixedly connected to the outer side of the roller 5. When in use, the air pump 9 delivers the external gas into the ring plate 8 through the air delivery pipe 10, and then the gas in the ring plate 8 is delivered to the roller through the gas delivery channel 11. 5, the gas inside the roller 5 is ejected through the nozzle 6, and finally the driving motor 12 drives the gear 13 to rotate. Because the gear 13 meshes with the gear ring 14, the gear ring 14 is fixed on the outside of the roller 5, and the roller 5 is rotatably connected with the support ring 4 and the ring plate 8 respectively, the gear 13 drives the nozzle 6 inside the roller 5 to rotate and eject, which is conducive to the air pump 9 to send the outside air into the roller 5 and eject it through the nozzle 6, so that the nozzle 6 can eject the heat around the casting 2, and can drive the roller 5 to rotate, so as to further enhance the jet cooling effect of the nozzle 6.

[0029] Specifically, Figure 1 and Figure 2As shown, the cooling device also includes an automatic conveying mechanism for moving the casting 2, the automatic conveying mechanism includes a first servo motor 15 arranged at the upper end of the base 1, the output shaft of the first servo motor 15 is fixedly connected to a first screw rod 16, the first screw rod 16 is threadedly connected to a support frame 17, a bracket 18 is arranged on one side of the support frame 17, the upper end of the bracket 18 is arranged with a casting 2, the upper end of the bracket 18 is evenly provided with a plurality of groups of air holes 19, and the plurality of groups of air holes 19 are arranged parallel to each other, a slide rail 21 is arranged on the support frame 17, the inner part of the slide rail 21 is slidably connected to a lifting platform 20, the lifting platform 20 is fixedly connected to the bracket 18, a second servo motor 22 is fixedly installed on the upper end of the lifting platform 20, the output shaft of the second servo motor 22 is fixedly connected to a second screw rod 23, the outer side of the second screw rod 23 is threadedly connected to a lever plate 24, the lever plate 24 is fixedly connected to the support frame 17, and the lifting platform 2 0 is arranged in parallel with the lever plate 24, the lifting platform 20 and the slide rail 21 are adapted, and the second servo motor 22 drives the second screw rod 23 to rotate. Because the second screw rod 23 is transmission-connected with the lever plate 24, and the slide rail 21 limits the direction of the lifting platform 20, the second servo motor 22 drives the lifting platform 20 at the bottom end of the second servo motor 22 to rise and fall through the lever plate 24, and the second servo motor 22 drives the casting 2 at the upper end of the bracket 18 to move to a suitable position, and finally the first servo motor 15 drives the first screw rod 16 to rotate, and the first screw rod 16 drives the support frame 17 at the upper end of the base 1 to move, and the support frame 17 drives the casting 2 at the upper end of the bracket 18 to enter the roller 5 for heat dissipation, which is useful for sending castings 2 of different heights and sizes into the center of the roller 5, so that the casting 2 can dissipate heat evenly in the enhanced heat dissipation mechanism, and by arranging air holes 19 on the bracket 18, the bottom end of the casting 2 can also be fully cooled.

[0030] Working principle: When in use, the air pump 9 delivers external gas into the ring plate 8 through the air delivery pipe 10, and then the gas in the ring plate 8 is delivered to the inside of the roller 5 through the air delivery channel 11, and the gas inside the roller 5 is ejected through the nozzle 6, and finally the driving motor 12 drives the gear 13 to rotate. Because the gear 13 meshes with the gear ring 14, the gear ring 14 is fixed on the outside of the roller 5, and the roller 5 is rotatably connected with the support ring 4 and the ring plate 8 respectively, the gear 13 drives the nozzle 6 inside the roller 5 to rotate and eject the gas, which is conducive to the air pump 9 to deliver the external air into the roller 5 and eject it through the nozzle 6, so that the nozzle 6 can eject the heat around the casting 2, and can drive the roller 5 to rotate, so as to further enhance the jet cooling effect of the nozzle 6;

[0031] The second servo motor 22 drives the second screw rod 23 to rotate. Because the second screw rod 23 is connected to the lever plate 24, and the slide rail 21 limits the direction of the lifting platform 20, the second servo motor 22 drives the lifting platform 20 at the bottom of the second servo motor 22 to rise and fall through the lever plate 24. The second servo motor 22 drives the casting 2 at the upper end of the bracket 18 to move to a suitable position. Finally, the first servo motor 15 drives the first screw rod 16 to rotate, and the first screw rod 16 drives the support frame 17 at the upper end of the base 1 to move. The support frame 17 drives the casting 2 at the upper end of the bracket 18 to enter the roller 5 for heat dissipation. It is useful to deliver castings 2 of different heights and sizes to the center of the roller 5, so that the casting 2 can dissipate heat evenly in the enhanced heat dissipation mechanism, and by arranging air holes 19 on the bracket 18, the bottom of the casting 2 can also be fully cooled.

[0032] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0033] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A steam turbine casting cooling device, the cooling device comprising an enhanced heat dissipation mechanism for dissipating heat from the casting (2), the enhanced heat dissipation mechanism being arranged on a base (1), characterized in that: The enhanced heat dissipation mechanism comprises a support column (3) arranged at the upper end of the base (1); the upper end of the support column (3) is fixedly connected to a support ring (4); the inner side of the support ring (4) is rotatably connected to a roller (5); the inner side of the roller (5) is evenly provided with nozzles (6); the outer side of the support ring (4) is fixedly connected to one end of a connecting frame (7); the other end of the connecting frame (7) is fixedly connected to a ring plate (8); the inner side of the ring plate (8) is fixedly installed with an air pump (9); the outer side of the air pump (9) is fixedly connected to an air pipe (10); the other end of the air pipe (10) is fixedly connected to the ring plate (8); the ring plate (8) is rotatably connected to one side of the roller (5).

2. A steam turbine casting cooling device according to claim 1, characterized in that: The inner wall of the roller (5) is evenly provided with a plurality of groups of gas delivery channels (11), and the plurality of groups of gas delivery channels (11) are all connected to a ring plate (8).

3. The steam turbine casting cooling device according to claim 1, characterized in that: At least two groups of the connecting frames (7) are provided, and the connecting frames (7) are arranged in an arc shape.

4. The steam turbine casting cooling device according to claim 1, characterized in that: A driving motor (12) is arranged at the upper end of the base (1); an output shaft of the driving motor (12) passes through the supporting column (3) and is fixedly connected to a gear (13); the gear (13) is meshed with a gear ring (14); and the gear ring (14) is fixedly connected to the outer side of the roller (5).

5. The steam turbine casting cooling device according to claim 1, characterized in that: The cooling device further comprises an automatic conveying mechanism for moving the casting (2), the automatic conveying mechanism comprising a first servo motor (15) arranged at the upper end of the base (1), the output shaft of the first servo motor (15) being fixedly connected to a first screw rod (16), the first screw rod (16) being threadedly connected to a support frame (17), a bracket (18) being arranged on one side of the support frame (17), and the casting (2) being arranged at the upper end of the bracket (18).

6. A steam turbine casting cooling device according to claim 5, characterized in that: A plurality of groups of air holes (19) are evenly formed at the upper end of the bracket (18), and the plurality of groups of air holes (19) are arranged parallel to each other.

7. A steam turbine casting cooling device according to claim 6, characterized in that: The support frame (17) is provided with a slide rail (21), the interior of the slide rail (21) is slidably connected to a lifting platform (20), the lifting platform (20) is fixedly connected to the bracket (18), a second servo motor (22) is fixedly installed on the upper end of the lifting platform (20), the output shaft of the second servo motor (22) is fixedly connected to a second screw rod (23), the outer side of the second screw rod (23) is threadedly connected to a lever plate (24), and the lever plate (24) is fixedly connected to the support frame (17).

8. The steam turbine casting cooling device according to claim 7, characterized in that: The lifting platform (20) is arranged in parallel with the lever plate (24), and the lifting platform (20) is matched with the slide rail (21).

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