A generator circulating cooling structure

Abstract

This invention discloses a generator circulating cooling structure, relating to the field of generator technology. It includes a mounting housing, on which a water-cooling mechanism and a heat dissipation mechanism are mounted. The water-cooling mechanism includes a circulating water path fixedly connected within the mounting housing. A circulating pump is installed at the inlet end of the circulating water path, and a water tank is installed at the outlet end. This invention can absorb the heat generated by the generator's stator and rotor through water cooling, ensuring the normal operation of the generator's stator and rotor. Simultaneously, it can complete the periodic heat exchange between the heat in the circulating water path and the heat generated by the generator's stator and rotor through the heat dissipation mechanism, further accelerating heat dissipation efficiency. Furthermore, the heat dissipation mechanism does not require a motor, achieving energy saving. It operates without noise and accelerates the cooling rate of the water in the water tank, thus ensuring the water-cooling effect of the water-cooling mechanism.

Description

Technical Field

[0001] This invention relates to the field of generator technology, and in particular to a generator circulating cooling structure. Background Technology

[0002] A generator is a mechanical device that converts other forms of energy into electrical energy. It is driven by a water turbine, steam turbine, diesel engine or other power machinery, which converts the energy generated by water flow, air flow, fuel combustion or nuclear fission into mechanical energy and then transmits it to the generator, which in turn converts it into electrical energy. Generators have a wide range of uses in industrial and agricultural production, national defense, science and technology and daily life.

[0003] Currently, the most common methods are liquid cooling and air cooling. When cooling the stator core of a generator, the common method is to open ventilation slots and holes in the stator core so that cooling gas (air or hydrogen) can flow through the ventilation slots and holes to carry away the heat and cool the core. However, air cooling is not as effective as liquid cooling, and the traditional air cooling structure is relatively complex and cannot produce energy-saving effects. Therefore, this application provides a generator circulating cooling structure to meet the requirements. Summary of the Invention

[0004] The purpose of this application is to provide a generator circulating cooling structure that solves the problem of low generator cooling efficiency.

[0005] To achieve the above objectives, this application provides the following technical solution: a generator circulating cooling structure, including a mounting shell, on which a water cooling mechanism and a heat dissipation mechanism are provided. The water cooling mechanism includes a circulating water circuit fixedly connected inside the mounting shell. A circulating pump is provided at the inlet end of the circulating water circuit, and a water tank is provided at the outlet end of the circulating water circuit. The outlet end of the circulating pump is connected to the water tank.

[0006] When cooling of the generator's stator and rotor is required, the circulating pump is activated to pump water from the tank into the circulating water circuit, and then the water flows back into the tank under the action of the circulating pump.

[0007] Preferably, the circulating water circuit includes multiple annular pipes and multiple connecting pipes fixedly connected to the annular pipes, thereby connecting the multiple annular pipes. A chamber is opened inside the mounting shell. Both ends of the connecting pipes are fixedly connected to the inner wall of the chamber. At the bottom part, one end of the connecting pipe is fixedly connected to an inlet pipe that penetrates and extends into the water tank. At the other bottom part, one end of the connecting pipe is fixedly connected to a drain pipe. The other end of the drain pipe is fixedly connected to an outlet pipe. The other end of the outlet pipe is fixedly sleeved with the inlet end of the circulating pump. The outlet end of the circulating pump is fixedly connected to a circulating pipe. The other end of the circulating pipe penetrates and extends into the water tank.

[0008] Preferably, the mounting shell has multiple through holes on both sides, and multiple inner holes on the top and bottom inner sides of the mounting shell, the inner holes being connected to the chamber.

[0009] Preferably, a semiconductor cooling chip is fixedly connected inside the water tank, and a stirring unit is provided inside the water tank, the stirring unit being fixedly connected to the heat dissipation mechanism.

[0010] Preferably, the stirring unit includes a plurality of rotating shafts rotatably connected to the inner wall of the bottom of the water tank and extending through and to the outside of the top of the water tank, and a plurality of impellers fixedly sleeved on the outer ring of the rotating shafts;

[0011] When the heat dissipation mechanism starts working, it drives the rotating shaft to rotate, which in turn drives the impeller to rotate, stirring the water in the water tank.

[0012] Preferably, the heat dissipation mechanism includes multiple heat transfer seats made of ferromagnetic material fixedly installed on both sides of the mounting shell, multiple fixing sleeves fixedly sleeved on the outer ring of the rotating shaft, multiple electromagnet brushes fixedly connected to the side wall of the fixing sleeves, heat dissipation fins fixedly connected to the electromagnet brushes, and a temperature control plate fixedly connected to the heat dissipation fins. The temperature control plate is electrically connected to the clockwise adjacent electromagnet brushes. The side of the heat transfer seat away from the mounting shell has multiple arc surfaces that fit against the heat dissipation fins.

[0013] Preferably, the heat sink has multiple heat dissipation holes.

[0014] Preferably, a plurality of support plates are fixedly connected to the top and bottom heat transfer seats, the rotating shaft passes through one of the support plates, and the other end is rotatably connected to another support plate.

[0015] In summary, the technical effects and advantages of this invention are as follows:

[0016] This invention can absorb the heat generated by the stator and rotor of the generator through water cooling, ensuring that the stator and rotor of the generator can work normally. At the same time, it can also complete the periodic heat exchange of heat absorption and release between the heat in the circulating water circuit and the heat generated by the stator and rotor of the generator through the heat dissipation mechanism, further accelerating the heat dissipation efficiency. Moreover, the heat dissipation mechanism does not require a motor to drive it, achieving the purpose of energy saving. It does not produce noise during operation, and at the same time, it can accelerate the cooling rate of the water in the water tank when the heat dissipation mechanism is working, thus ensuring the water cooling effect of the water cooling mechanism. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the generator's circulating cooling system.

[0019] Figure 2 This is a cross-sectional view of the water tank and mounting shell of the present invention.

[0020] Figure 3 This is a schematic cross-sectional view of the mounting shell structure of the present invention.

[0021] Figure 4 This is a schematic diagram of the heat dissipation mechanism.

[0022] Figure 5 This is a schematic diagram of the circulating water circuit structure of the present invention.

[0023] In the diagram: 1. Circulating pump; 2. Water tank; 3. Rotating shaft; 4. Mounting housing; 401. Chamber; 402. Through hole; 403. Inner hole; 5. Stator; 6. Rotor; 7. Outlet pipe; 8. Drain pipe; 9. Semiconductor cooling chip; 10. Impeller; 11. Annular pipe; 1101. Connecting pipe; 12. Inlet pipe; 13. Heat transfer base; 14. Heat sink; 15. Temperature control chip; 16. Electromagnetic brush; 17. Support plate; 18. Fixing sleeve; 19. Circulating pipe. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example: Reference Figure 1-5 The generator circulating cooling structure shown has a water cooling mechanism and a heat dissipation mechanism on the mounting shell 4. The water cooling mechanism includes a circulating water circuit fixedly connected inside the mounting shell 4. A circulating pump 1 is provided at the inlet end of the circulating water circuit, and a water tank 2 is provided at the outlet end of the circulating water circuit. The outlet end of the circulating pump 1 is connected to the water tank 2.

[0026] like Figure 1 and Figure 2As shown, when the stator 5 and rotor 6 of the generator need to be cooled, the circulation pump 1 starts to pump the water in the water tank 2 into the circulation water circuit. Then, under the action of the circulation pump 1, the water flows back into the water tank 2, thereby completing the water circulation. The water in the circulation water circuit absorbs the heat generated by the stator 5 and rotor 6 of the generator, ensuring that the stator 5 and rotor 6 of the generator can work normally.

[0027] like Figure 2 or Figure 3 As shown, the circulating water circuit includes multiple annular pipes 11 and multiple connecting pipes 1101 fixedly connected to the annular pipes 11, thereby connecting the multiple annular pipes 11. A chamber 401 is opened inside the mounting shell 4. The two ends of the connecting pipes 1101 are fixedly connected to the inner wall of the chamber 401. One end of the bottom part of the connecting pipe 1101 is fixedly connected to an inlet pipe 12 that penetrates and extends into the water tank 2. One end of the other part of the bottom connecting pipe 1101 is fixedly connected to a drain pipe 8. The other end of the drain pipe 8 is fixedly connected to an outlet pipe 7. The other end of the outlet pipe 7 is fixedly connected to the inlet end of the circulating pump 1. The outlet end of the circulating pump 1 is fixedly connected to a circulating pipe 19. The other end of the circulating pipe 19 penetrates and extends into the water tank 2.

[0028] To ensure that heat can be dissipated when the generator stator 5 and rotor 6 start working, such as Figure 3 As shown, multiple through holes 402 are provided on both sides of the mounting shell 4, and multiple inner holes 403 are provided on the top and bottom inner sides of the mounting shell 4. The inner holes 403 are connected to the chamber 401, so that heat enters the chamber 401 through the inner holes 403 and is then discharged from the through holes 402, or directly discharged through the through holes 402, to avoid heat accumulation near the stator 5 and rotor 6 of the generator, which could cause damage to the stator 5 and rotor 6 of the generator.

[0029] like Figure 2 As shown, a semiconductor cooling chip 9 is fixedly connected inside the water tank 2 to cool the water in the water tank 2, so that the water entering the circulating water circuit is cold water. A stirring unit is installed inside the water tank 2, and the stirring unit is fixedly connected to the heat dissipation mechanism.

[0030] To accelerate the cooling rate of the water in water tank 2, such as Figure 2 As shown, the stirring unit includes multiple rotating shafts 3 that are rotatably connected to the inner wall of the bottom of the water tank 2 and extend to the outside of the top of the water tank 2, and multiple impellers 10 that are fixedly sleeved on the outer ring of the rotating shafts 3.

[0031] When the heat dissipation mechanism starts working, it drives the rotating shaft 3 to rotate, which in turn drives the impeller 10 to rotate, stirring the water in the water tank 2. At the same time, under the action of the semiconductor cooling chip 9, it accelerates the cooling rate of the water in the water tank 2, thus ensuring the water cooling effect of the water cooling mechanism.

[0032] like Figure 2 and Figure 4 The heat dissipation mechanism shown includes multiple heat transfer seats 13 made of ferromagnetic material fixedly installed on both sides of the mounting shell 4, multiple fixing sleeves 18 fixedly sleeved on the outer ring of the rotating shaft 3, multiple electromagnet brushes 16 fixedly connected to the side wall of the fixing sleeves 18, heat sinks 14 fixedly connected to the electromagnet brushes 16, and temperature control plates 15 fixedly connected to the heat sinks 14. The temperature control plates 15 are electrically connected to the clockwise adjacent electromagnet brushes 16. The side of the heat transfer seat 13 away from the mounting shell 4 has multiple arc surfaces that fit against the heat sinks 14.

[0033] As the temperature of the generator's stator 5 and rotor 6 gradually increases, heat flows out of the mounting housing 4 through the inner hole 403 and the through hole 402, causing the temperature of the heat transfer base 13 to rise. At this time, the temperature of the heat sink 14, which is in contact with the heat transfer base 13, also rises. When the temperature reaches the critical value of the temperature control plate 15 on the heat sink 14, the temperature control plate 15 controls the electromagnet brush 16 to be energized. Under the traction of the magnetic force, the electromagnet brush 16 turns towards the heat transfer base 13, and the heat sink 14, which has reached the critical value of the temperature control plate 15, is pushed away from the heat transfer base 13 and dissipates heat to the outside to cool down. Afterwards, the temperature on the heat sink 14 that has been pushed away from the heat transfer base 13 drops below the critical value of the temperature control plate 15, while the temperature on the heat sink 14 that is close to the heat transfer base 13 reaches the critical value of the temperature control plate 15. This causes the heat sinks 14 to rotate again, so that the heat sinks 14 with higher temperatures are moved away from the surface of the heat transfer base 13, while the heat sinks 14 with lower temperatures are brought closer to the surface of the heat transfer base 13. This cycle repeats, so that the heat sinks 14 complete the periodic heat exchange of heat absorption and release as they rotate past the surface of the heat transfer base 13. The heat dissipation mechanism does not require a motor to drive it, so there is no noise during operation.

[0034] Multiple heat dissipation holes (not shown in the figure) are provided on the heat sink 14 to accelerate the heat dissipation efficiency of the heat sink 14.

[0035] Considering the stability of rotating shaft 3, such as Figure 4 As shown, multiple support plates 17 are fixedly connected to the top and bottom heat transfer bases 13. The rotating shaft 3 passes through one of the support plates 17, and its other end is rotatably connected to another support plate 17, so that the rotating shaft 3 can rotate stably.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A generator circulating cooling structure comprising a mounting case (4), characterized by: The installation shell (4) is provided with a water cooling mechanism and a heat dissipation mechanism, the water cooling mechanism comprises a circulating water channel fixedly connected in the installation shell (4), a circulating pump (1) is arranged at the water inlet end of the circulating water channel, a water tank (2) is arranged at the water outlet end of the circulating water channel, and the water outlet end of the circulating pump (1) is communicated with the water tank (2); When the stator (5) and the rotor (6) of the generator need to be cooled, the circulating pump (1) is started to pump the water in the water tank (2) into the circulating water channel, and then the water flows into the water tank (2) again under the action of the circulating pump (1), a semiconductor refrigeration fin (9) is fixedly connected in the water tank (2), and a stirring unit is arranged in the water tank (2) and fixedly connected with the heat dissipation mechanism; The heat dissipation mechanism comprises a plurality of heat transfer seats (13) made of ferromagnetic material fixedly installed on both sides of the installation shell (4), a plurality of fixed sleeves (18) fixedly sleeved on the outer circle of the rotating shaft (3), a plurality of electromagnetic brush sheets (16) fixedly connected on the side wall of the fixed sleeve (18), a plurality of heat dissipation fins (14) fixedly connected on the electromagnetic brush sheet (16), a temperature control sheet (15) fixedly connected on the heat dissipation fin (14), the temperature control sheet (15) is electrically connected with the adjacent electromagnetic brush sheet (16) in clockwise direction, and a plurality of circular arc surfaces matched with the heat dissipation fins (14) are formed on the side of the heat transfer seat (13) away from the installation shell (4); The stirring unit comprises a plurality of rotating shafts (3) rotatably connected to the inner wall of the bottom of the water tank (2) and extending to the top of the water tank (2), and a plurality of impellers (10) fixedly sleeved on the outer circle of the rotating shaft (3); when the heat dissipation mechanism starts to work, the rotating shaft (3) is driven to rotate, and then the impeller (10) is driven to rotate, so that the water in the water tank (2) is stirred.

2. The generator circulating cooling structure according to claim 1, characterized by: The circulating water channel comprises a plurality of annular pipes (11), a plurality of connecting pipes (1101) fixedly connected on the annular pipes (11), so that the plurality of annular pipes (11) are communicated, a cavity (401) is formed in the installation shell (4), the two ends of the connecting pipe (1101) are fixedly connected with the inner wall of the cavity (401), one end of the connecting pipe (1101) at the bottom is fixedly connected with a water inlet pipe (12) penetrating and extending into the water tank (2), one end of the other part of the connecting pipe (1101) at the bottom is fixedly connected with a drain pipe (8), the other end of the drain pipe (8) is fixedly connected with a water outlet pipe (7), the other end of the water outlet pipe (7) is fixedly sleeved with the water inlet end of the circulating pump (1), the water outlet end of the circulating pump (1) is fixedly connected with a circulating pipe (19), and the other end of the circulating pipe (19) penetrates and extends into the water tank (2).

3. The generator circulating cooling structure according to claim 2, characterized by: A plurality of through holes (402) are formed in the two sides of the installation shell (4), a plurality of inner holes (403) are formed in the inner sides of the top and bottom of the installation shell (4), and the inner holes (403) are communicated with the cavity (401).

4. The generator circulating cooling structure according to claim 1, characterized by: A plurality of heat dissipation holes are formed in the heat dissipation fin (14).

5. The generator circulating cooling structure according to claim 1, characterized by: The heat transfer seat (13) is fixedly connected with a plurality of support plates (17) on the top and the bottom, the rotating shaft (3) penetrates one of the support plates (17) and is rotatably connected with another support plate (17) at the other end.

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