Efficient brushless excitation hydraulic generator
By introducing a cooling box and a spiral pipe structure into the brushless excitation water turbine generator, the circulation of circulating water flow takes away the heat of the excitation winding, solving the problem of heat dissipation of the excitation winding, achieving efficient heat dissipation and cost reduction.
Patent Information
- Application Number
- CN202422643197.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-30
AI Technical Summary
During the operation of existing brushless excitation water turbine generators, the heat generated by the excitation winding is difficult to effectively dissipate heat, resulting in damage to the components, and the installation of heat dissipation equipment is expensive and increases weight.
A high-efficiency brushless excitation water turbine generator is designed, using a cooling box and a spiral pipe structure, which uses circulating water flow to take away the heat of the excitation winding, and communicates with the outside through the breathable hole to avoid high temperature damage, and cancels the additional heat dissipation fan structure.
It realizes efficient heat dissipation of brushless excitation water turbine generators, reduces equipment costs, avoids component damage, and does not increase equipment weight.
Smart Images
Figure CN223256986U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydraulic generators, in particular to a high-efficiency brushless excitation hydraulic generator. Background Art
[0002] At present, the excitation methods used by generators mainly include two typical methods: static thyristor excitation and brushless excitation. In the static thyristor excitation method, the generator and the excitation system are two independent systems. The excitation system has a fast response speed and is more commonly used in hydropower products.
[0003] During the operation of existing brushless excitation hydro-turbine generators, the excitation winding generates a certain amount of heat when rotating at high speed. To prevent the internal components of the brushless excitation hydro-turbine generator from being damaged by heat, most of them dissipate heat by installing cooling fans. However, installing heat dissipation equipment is expensive and increases the weight of the brushless excitation hydro-turbine generator. Utility Model Content
[0004] The purpose of the utility model is to provide a high-efficiency brushless excitation hydro-generator to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency brushless excitation hydro-turbine generator, comprising a base, which is a square component with a hollow interior, a top cover hingedly installed on the top of the base, a turbine assembly provided inside the base, a water inlet pipe provided on one side of the turbine assembly, a water outlet pipe provided on the other side of the turbine assembly, a central axis provided inside the turbine assembly, and one end of the central axis extends out of the base, a reinforcement support assembly is provided on the outer surface of the central axis outside the base, an excitation assembly is provided on the outer surface of the turbine assembly inside the base, a cooling box is provided at the front end of the excitation assembly, a spiral through-tube is provided inside the cooling box, a water inlet pipe is provided at one end of the spiral through-tube, and the water inlet pipe extends from the cooling box from top to bottom, and a drain pipe is provided at the other end of the spiral through-tube, and the drain pipe extends from the bottom to top out of the cooling box.
[0006] Preferably, two radiators are provided on the top of the top cover, two heat dissipation holes are provided on both sides of the base, a mounting base is provided on the top of the base, and a filter is provided on the top of the radiator. The radiator and the heat dissipation holes allow the heat inside the base to be discharged, thereby avoiding excessive temperature during operation of the high-efficiency brushless excitation hydro-turbine generator.
[0007] Preferably, a fixing plate is provided at the top edge of one side of the base and the bottom edge of one side of the top cover. When the top cover is closed, the two fixing plates are in contact and fixed by screws so that the top cover will not open automatically.
[0008] Preferably, a hose is provided on the top of the drain pipe, and one end of the hose extends out of one side of the base to discharge the cooled water, so that the water inside the spiral tube can circulate continuously to achieve a cooling effect.
[0009] Preferably, the bottom of the water inlet pipe is connected to the water outlet pipe. When the water outlet pipe pushes the water out of the turbine, the water inlet pipe will lead out part of the water and transport it to the inside of the spiral tube, so that the cooling box can maintain a low temperature state through the continuous flow of water to achieve a cooling effect.
[0010] Preferably, a plurality of air holes are provided on both end surfaces of the cooling box, through which the excitation component is connected to the outside, so as to facilitate the discharge of hot air and improve the cooling efficiency of the excitation component.
[0011] Compared with the prior art, the beneficial effects of the present invention are:
[0012] This high-efficiency brushless excitation hydro-turbine generator uses a cooling box. When the outlet pipe discharges the water that drives the turbine, the water inlet pipe will lead out part of the water and transport it to the inside of the spiral tube. The water flows inside the spiral tube and is discharged from the drain pipe. The cooling box can maintain a low temperature through the continuous flow of water. The cooling box is arranged in the front of the excitation component. A number of air holes are opened on the surfaces of both ends of the cooling box. The cooling box is connected to the cooling box through the air holes. The heat generated when the excitation winding rotates is taken away by the flowing water to achieve a cooling effect. The flowing water is used for cooling, so that the heat generated when the excitation winding is running can be discharged in time, avoiding damage caused by high temperature generated by the high-efficiency brushless excitation hydro-turbine power generation. There is no need to install cooling components such as fan blades, so the cost is low and the resource utilization rate is high. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the internal structure of the utility model;
[0015] Figure 3 This is a schematic diagram of the structure of the excitation component of the utility model;
[0016] Figure 4 This is a schematic structural diagram of the cooling box of the utility model.
[0017] In the figure: 1. Base; 2. Water outlet pipe; 3. Hose; 4. Heat dissipation hole; 5. Water inlet pipe; 6. Top cover; 7. Radiator; 8. Reinforcement support assembly; 9. Turbine assembly; 10. Fixing plate; 11. Mounting base plate; 12. Excitation assembly; 13. Central axis; 14. Water inlet pipe; 15. Cooling box; 16. Air vent; 17. Drain pipe; 18. Spiral pipe. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] like Figures 1 to 4 As shown, the high-efficiency brushless excitation hydro-turbine generator of this embodiment includes a base 1, which is a square component with a hollow interior. A top cover 6 is hingedly installed on the top of the base 1. The top cover 6 is used in conjunction with the base 1 to protect the internal parts and improve the sturdiness of the high-efficiency brushless excitation hydro-turbine generator. A turbine assembly 9 is provided inside the base 1, and a water inlet pipe 5 is provided on one side of the turbine assembly 9, and a water outlet pipe 2 is provided on the other side of the turbine assembly 9. A central axis 13 is provided inside the turbine assembly 9, and the turbine assembly 9 contains a turbine. The center of the turbine is connected to the central axis 13. When the water inlet pipe 5 transports water to the inside of the turbine assembly 9, the turbine is driven to rotate by the flowing water, driving the central axis 13 to rotate. The water inside the turbine assembly 9 will be discharged through the water outlet pipe 2 after driving the turbine to rotate, and one end of the central axis 13 extends out of the base 1. The appearance of the central axis 13 outside the base 1 A reinforcement support component 8 is provided on the surface, and an excitation component 12 is provided on the outer surface of the turbine component 9 inside the base 1. The excitation component 12 contains an excitation winding, which rotates synchronously with the central axis 13 to provide stator power to the stator of the synchronous motor. A cooling box 15 is provided at the front end of the excitation component 12, and a spiral pipe 18 is provided inside the cooling box 15. A water inlet pipe 14 is provided at one end of the spiral pipe 18, and the water inlet pipe 14 extends from the cooling box 15 from top to bottom. A drain pipe 17 is provided at the other end of the spiral pipe 18, and the drain pipe 17 extends from the bottom to top out of the cooling box 15. The water inlet pipe 14 transports water to the inside of the spiral pipe 18, and then discharges it from the drain pipe 17, so that the water flows inside the spiral pipe 18 to take away the heat inside the excitation component 12, so as to avoid the excitation winding inside the excitation component 12 from being damaged due to excessive temperature.
[0021] Specifically, two radiators 7 are provided on the top of the top cover 6, two heat dissipation holes 4 are provided on both sides of the base 1, a mounting base plate 11 is provided on the top of the base 1, and a filter is provided on the top of the radiator 7. The radiator 7 and the heat dissipation holes 4 allow the heat inside the base 1 to be discharged, thereby preventing the high temperature from being too high during the operation of the high-efficiency brushless excitation hydro-turbine generator.
[0022] Furthermore, a fixing plate 10 is provided at the top edge of one side of the base 1 and the bottom edge of one side of the top cover 6. When the top cover 6 is closed, the two fixing plates 10 are in contact and fixed by screws so that the top cover 6 will not open automatically.
[0023] Furthermore, a hose 3 is provided on the top of the drain pipe 17, and one end of the hose 3 extends out of one side of the base 1 to discharge the cooling water, so that the water inside the spiral tube 18 can flow continuously to achieve a cooling effect.
[0024] Furthermore, the bottom of the water inlet pipe 14 is connected to the water outlet pipe 2. When the water outlet pipe 2 discharges the water that drives the turbine, the water inlet pipe 14 will lead out part of the water and transport it to the inside of the spiral tube 18, so that the cooling box 15 can maintain a low temperature state through the continuous flow of water to achieve a cooling effect.
[0025] Furthermore, a plurality of air holes 16 are provided on both end surfaces of the cooling box 15 , through which the excitation component 12 is connected to the outside, so as to facilitate the discharge of hot air and improve the cooling effect of the excitation component 12 .
[0026] The method of using this embodiment is as follows: when the high-efficiency brushless excitation hydro-turbine generator is running, water is transported to the inside of the turbine assembly 9 through the water inlet pipe 5, and the turbine is driven to rotate by the flowing water, driving the central shaft 13 to rotate. The water inside the turbine assembly 9 will be discharged through the water outlet pipe 2 after driving the turbine to rotate. When the water outlet pipe 2 discharges the water that drives the turbine, the water inlet pipe 14 will lead out part of the water and transport it to the inside of the spiral tube 18. After flowing inside the spiral tube 18, the water is discharged from the drain pipe 17, so that the cooling box 15 can be kept at a low temperature by the continuous flow of water. The cooling box 15 is arranged in the front of the excitation assembly 12, and a number of air holes 16 are provided on the surfaces of both ends of the cooling box 15, which are connected to the cooling box 15 through the air holes 16. The heat generated when the excitation winding rotates is taken away by the flowing water to achieve a cooling effect.
[0027] Finally, it should be noted that the above description is merely 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 aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A high-efficiency brushless excitation hydro-turbine generator, comprising a base (1), characterized in that: The base (1) is a square component with a hollow interior. A top cover (6) is hingedly installed on the top of the base (1). A turbine assembly (9) is provided inside the base (1). A water inlet pipe (5) is provided on one side of the turbine assembly (9), and a water outlet pipe (2) is provided on the other side of the turbine assembly (9). A central axis (13) is provided inside the turbine assembly (9), and one end of the central axis (13) extends out of the base (1). A reinforcement support assembly (8) is provided on the outer surface of the central axis (13) outside the base (1). The outer surface of the turbine assembly (9) inside the base (1) is provided with an excitation assembly (12), the front end of the excitation assembly (12) is provided with a cooling box (15), the interior of the cooling box (15) is provided with a spiral pipe (18), one end of the spiral pipe (18) is provided with a water inlet pipe (14), and the water inlet pipe (14) extends from top to bottom out of the cooling box (15), and the other end of the spiral pipe (18) is provided with a drain pipe (17), and the drain pipe (17) extends from bottom to top out of the cooling box (15).
2. The high-efficiency brushless excitation hydro-turbine generator according to claim 1, characterized in that: Two radiators (7) are provided on the top of the top cover (6), two heat dissipation holes (4) are provided on both sides of the base (1), and a mounting base plate (11) is provided on the top of the base (1).
3. The high-efficiency brushless excitation hydro-turbine generator according to claim 1, characterized in that: A fixing plate (10) is provided at one top edge of the base (1) and one bottom edge of the top cover (6).
4. The high-efficiency brushless excitation hydro-turbine generator according to claim 1, characterized in that: A hose (3) is provided on the top of the drain pipe (17), and one end of the hose (3) extends out of one side of the base (1).
5. The high-efficiency brushless excitation hydro-generator according to claim 1, characterized in that: The bottom of the water inlet pipe (14) is connected to the water outlet pipe (2).
6. The high-efficiency brushless excitation hydro-generator according to claim 1, characterized in that: The surfaces of both ends of the cooling box (15) are provided with a plurality of air holes (16).