Water turbine generator dew collector and air cooler

Abstract

This invention relates to a hydro-generator dew collector and air cooler, comprising a bracket and a water-blocking component located on the bracket. An air vent is provided between the water-blocking component and the bracket for air passage. The bracket includes a working surface. The projections of the water-blocking component and the bracket onto the plane of the working surface are located within the working surface, and the projected areas of the water-blocking component and the bracket onto the plane of the working surface are the same as the area of ​​the working surface. A water-receiving groove is provided on the water-blocking component. Since the air cooler is installed above the generator unit, similar to a design where the air cooler is installed below the generator unit, it can achieve higher cooling efficiency. Thus, only one air cooler is needed to meet the cooling requirements. Furthermore, the reduction in the number of air coolers also reduces the need for associated inlet and outlet water systems, lowering costs.

Description

Technical Field

[0001] This invention relates to the technical field of hydro-generator equipment, and in particular to a hydro-generator dew collector and air cooler. Background Technology

[0002] A hydro-generator is a generator that uses a hydro turbine as its prime mover to convert water energy into electrical energy. Axial-flow turbines are a new type of unit for developing low-head hydropower resources. Based on their structural characteristics and layout, they can be divided into vertical shaft type, shaft extension type, etc.

[0003] In normal use, air coolers are installed at the bottom of the generator set. However, for shaft-driven and shaft-extended axial-flow turbine generators, there is no space at the bottom of the generator set, so the air coolers cannot be installed there. Therefore, they must be installed elsewhere on the generator set. However, since condensation will occur on the air coolers during operation, and the dew can easily enter the generator set, two air coolers are usually installed vertically on both sides of the generator stator frame, avoiding important positions on the generator set, in order to prevent the generator from being damaged by the dew entering the generator set.

[0004] Regarding the aforementioned technologies, the inventors believe that originally only one air cooler was needed to meet the operation of the unit. However, since the cooling efficiency of the air cooler is reduced after it is installed vertically, two air coolers are needed on both sides of the unit to meet the cooling requirements, which greatly increases the cost. Summary of the Invention

[0005] To address the issues of high installation costs and low unit space utilization of air coolers, this application provides a hydro generator dew collector and an air cooler.

[0006] In the first aspect, this application provides a dew collector for a hydro-generator, which adopts the following technical solution:

[0007] A hydro-generator dew collector includes a support frame and a water-blocking component located on the support frame. An air vent is provided between the water-blocking component and the support frame for air to pass through. The support frame includes a working surface. The projections of the water-blocking component and the support frame onto the plane of the working surface are located within the working surface, and the projected areas of the water-blocking component and the support frame onto the plane of the working surface are the same as the area of ​​the working surface. A water-receiving groove is provided on the water-blocking component.

[0008] By adopting the above technical solution, the air cooler is installed above the unit, and a condensation collector is installed between the unit and the air cooler. During use, the dew falling from the air cooler will fall directly onto the condensation collector, which can prevent the dew from directly entering the unit and damaging it. The condensation collector allows the air cooler to be installed above the unit, thereby achieving better cooling efficiency. When the condensation collector is installed below the air cooler, the working surface is perpendicular to the vertical plane, and the condensation collector is located directly below the air inlet side of the air cooler. At this time, the condensation collector can catch the dew falling from the air cooler. At the same time, since the water baffle has a vent, the hot air around the unit can effectively enter the air cooler for cooling through the vent. Since the projection of the water baffle and the bracket on the working surface is consistent with the shape and size of the working surface, when viewed vertically, the water baffle is a single seamless component. Therefore, the falling dew will definitely be blocked by the water baffle as it falls vertically, thus fulfilling the dual purpose of isolating the dew and maintaining ventilation.

[0009] Since the air cooler is installed above the unit, it has the same high cooling efficiency as the air cooler installed below the unit. Thus, only one air cooler is needed to meet the cooling requirements. At the same time, the reduction in the number of air coolers also reduces the number of water inlet and outlet systems that are matched with the air cooler, thereby reducing costs.

[0010] Preferably, the water-blocking component includes a plurality of spaced-apart grid plates, with vents formed between adjacent grid plates. The plurality of grid plates are arranged side by side and inclined. Each grid plate includes a first side and a second side, which are arranged opposite to each other. The first side is located on the side of the grid plate closer to the working surface, and the second side of the grid plate is inclined to the side away from the working surface. The projection of the first side of the grid plate on the working surface is located within the projection of the adjacent grid plate on one side of the grid plate on the working surface, and the projection of the second side of the grid plate on the working surface is located within the projection of the adjacent grid plate on the other side of the grid plate on the working surface. The water receiving trough is located at the second side of the grid plate.

[0011] By adopting the above technical solution, by arranging several grids side by side at intervals, air vents can be formed between adjacent grids. By tilting all grids at the same angle, several grids can form an "overlapping" relationship in the vertical direction. In this way, the projection of several grids on the working surface can form a closed surface, which can block and catch the dew falling in the vertical direction. All the dew falling from the air cooler can be caught by several grids. By tilting several grids, the wind resistance when the air passes through the air vents can be reduced to the greatest extent, thereby increasing the air cooling efficiency.

[0012] Preferably, the water receiving troughs are distributed along the length of the grid plate.

[0013] By adopting the above technical solution, dew can be drawn into the water collection tank whenever it falls on the grid plate, ensuring that it can be diverted away in time when there is a lot of dew, effectively preventing dew from entering the unit.

[0014] Preferably, the second side of the grid plate is folded towards the working surface to form a folded edge, and the water receiving trough is formed by the folded edge.

[0015] By adopting the above technical solution, the water receiving trough is formed by folding the grid plate, which improves the efficiency of production and manufacturing. At the same time, since the water receiving trough is integrally formed on the grid plate, it is less prone to leakage.

[0016] Preferably, the side of the folded edge facing away from the working surface is provided with an air guide surface.

[0017] By adopting the above technical solution, the resistance encountered by air when passing through the air vent between adjacent grids will increase due to the folding of the grid plates. In order to reduce wind resistance, an air guide surface is set on the side of the folded edge away from the working surface. The air guide surface can guide the air to pass through the air vent quickly and increase the air cooling efficiency.

[0018] Preferably, the angle between the plane containing the air guide surface and the plane containing the working surface is 30-50 degrees.

[0019] By adopting the above technical solution and through practice, it has been found that when the air guide surface is set at an angle between 30 and 50 degrees, the efficiency of air passing through the vent is better, and the air guide surface has the best guiding effect on the air.

[0020] Preferably, the bracket is provided with a water guide groove, and the water receiving grooves on several grid plates are all connected to the water guide groove.

[0021] By adopting the above technical solution, since each grid plate has a water collection groove, in order to collect the dew on multiple grid plates, all the water collection grooves on the grid plates are connected to the water guiding groove. This allows all the dew on the grid plates to converge into the water guiding groove, and then the dew is guided to the outside through the water guiding groove, which can improve the dew guiding efficiency.

[0022] Preferably, the water guide groove is located on the end side of the grid plate.

[0023] By adopting the above technical solution, the influence of the water guide channel on the size of the air vent can be avoided, and wind resistance can be reduced.

[0024] Preferably, the first side of the grid plate is hinged to the bracket, the intersection axis of the grid plate and the bracket is set along the length direction of the first side, a support plate is slidably arranged on the bracket in the direction toward or away from the working surface, the grid plate is located between the support plate and the working surface, the second side of the grid plate is slidably overlapped on the support plate, and the bracket is provided with a driving device for driving the support plate to slide.

[0025] By adopting the above technical solution, since coolant is introduced into the air cooler, there is a certain probability of leakage during use. When the air cooler leaks, due to the large amount of liquid, the liquid can easily flow into the unit through the vents between adjacent grids. By hinged to the bracket, the grids can form a "louver" structure. When the support plate pushes the grids to rotate, the size of the vents between adjacent grids will change. As the support plate moves closer to the hinge side of the grids, the vents can gradually decrease until they are completely blocked. At this time, a large amount of liquid can be prevented from entering the unit, ensuring that the unit does not receive liquid when the air cooler leaks.

[0026] Secondly, this application provides an air cooler for a hydro-generator, which adopts the following technical solution:

[0027] A hydro-generator air cooler includes a hydro-generator dew collector as described in the above technical solution, and also includes an air cooler body, wherein the bracket is disposed on the air inlet side of the air cooler body.

[0028] By adopting the above technical solution, the dew collector allows the air cooler to be installed above the unit in a confined space, and the dew collector can catch the dew that falls from the air cooler, preventing the dew from entering the unit and affecting its normal operation.

[0029] In summary, the present invention has at least one of the following beneficial technical effects:

[0030] 1. One air cooler can meet the cooling requirements. At the same time, the reduction in the number of air coolers also reduces the number of water inlet and outlet systems that are matched with the air coolers, thus reducing costs.

[0031] 2. The inclined design of the grid plate minimizes air resistance during water baffle operation, ensuring rapid airflow and meeting the required cooling effect. Attached Figure Description

[0032] Figure 1 This is a structural schematic diagram of Embodiment 1.

[0033] Figure 2 This is a cross-sectional view along the length of the support in Embodiment 1.

[0034] Figure 3 It is a cross-sectional view of the grid plate along the direction perpendicular to the length of the grid plate, mainly showing the structure of the grid plate.

[0035] Figure 4 This is a cross-sectional view along the width direction of the support in Embodiment 1.

[0036] Figure 5 This is a schematic diagram of the structure of Embodiment 2.

[0037] Figure 6 This is a schematic diagram of the structure of Embodiment 3.

[0038] In the diagram: 1. Bracket; 2. Fixing plate; 3. Water baffle; 311. Grille; 3111. First side; 3112. Second side; 4. Vent; 5. Working surface; 6. Water collection trough; 7. Folded edge; 8. Air guide surface; 9. Water guide trough; 10. Support plate; 11. Drive device; 111. Motor; 112. Cam; 12. Hinge shaft; 13. Air cooler body; 14. Air inlet side; 15. Water outlet; 16. Water baffle; 17. Slot plate; 18. End plate; 19. Side plate; 191. Upper plate; 192. Lower plate; 193. Side plate; 20. Reinforcing plate; 21. Notch; 22. Water collection trough. Detailed Implementation

[0039] The present invention will be further described in detail below with reference to the accompanying drawings.

[0040] Example 1:

[0041] Reference Figure 1 , 2 A dew collector for a hydro-generator includes a bracket 1 and a water-blocking component 3. The water-blocking component 3 is connected to the bracket 1 and has a water-receiving groove 6. A vent 4 is provided between the water-blocking component 3 and the bracket 1. The bracket 1 includes a working surface 5, which guides the installer to install the dew collector in the correct position. During installation, the working surface 5 needs to be perpendicular to the vertical direction, and the dew collector needs to be installed at the bottom of the air cooler. This ensures that when the dew on the air cooler falls freely, it travels in a direction perpendicular to the working surface 5 and interacts with the water-blocking component 3. Contact; wherein, the projections of the water-blocking component 3 and the support 1 on the plane where the working surface 5 is located are located within the working surface 5, and the projection area of ​​the water-blocking component 3 and the support 1 on the plane where the working surface 5 is located is the same as the area of ​​the working surface 5, that is, the projection of the water-blocking component 3 on the working surface 5 completely covers the working surface 5. In this way, the dew falling in the direction perpendicular to the working surface 5 can be blocked by the water-blocking component 3, and the blocked dew will be collected in the water receiving tank 6, which plays a role in preventing dew from dripping into the unit, ensuring that the unit can operate stably even when the air cooler is installed above the unit.

[0042] Among them, reference Figure 1 As shown, the bracket 1 includes two opposing end plates 18 and two opposing side plates 19. The end plates 18 and side plates 19 form a rectangular frame. The space enclosed by the rectangular frame is used for air passage. The water-blocking component 3 is located within the space enclosed by the rectangular frame. Figure 4As shown, the side plate 19 includes an upper plate 191 and a lower plate 192. A side plate 193 is provided between the upper plate 191 and the lower plate 192. One side of the side plate 193 is connected to the upper plate 191, and the other side is connected to the lower plate 192. The thickness of the side plate 193 is less than the width of the upper plate 191 or the lower plate 192. Several reinforcing plates 20 are welded between the upper plate 191 and the lower plate 192. This arrangement allows the support 1 to withstand greater forces while maintaining a relatively light overall weight, ensuring that the support 1 can withstand the weight of the air cooler without bending or being damaged. A fixing plate 2 is provided on the end plate 18. The fixing plate 2 is used to install the condensate collector on the unit, and the air cooler is installed on the condensate collector. Figure 2 As shown, in this embodiment, the working surface 5 is the upper end surface of the bracket 1. During use, the bracket 1 needs to be installed horizontally to ensure that the working surface 5 is perpendicular to the vertical direction.

[0043] like Figure 2 , 3 As shown, the water-blocking component 3 includes several grid plates 311 spaced apart. In this embodiment, the grid plates 311 are long strip-shaped metal plates. The grid plates 311 are arranged side by side along the width direction of the support 1, and vents 4 are formed between adjacent grid plates 311. The grid plates 311 are all inclined. In this embodiment, all grid plates 311 are inclined to the right.

[0044] The grid plate 311 has a first side edge 3111 on one side and a second side edge 3112 on the other side. The first side edge 3111 is located on the side of the grid plate 311 closer to the working surface 5, and the second side edge 3112 is located on the side of the grid plate 311 away from the working surface 5. The second side edge 3112 is folded towards the working surface 5 to form a folded edge 7. The folded edge 7 is distributed along the length of the grid plate 311 and is located at the lowest point of the grid plate 311. The water receiving groove 6 is formed at the folded edge, that is, the water receiving groove 6 is located at the lowest point of the grid plate 311 in the vertical direction. In this way, when dew drops fall on the grid plate 311, it can flow along the surface of the grid plate 311 to the water receiving groove 6 at the lowest point and collect.

[0045] like Figure 2 , 3 As shown, the projection of the first side 3111 of the grid plate 311 onto the working surface 5 is located within the projection of the adjacent grid plate 311 on the left side of the grid plate 311 onto the working surface 5, while the projection of the second side 3112 of the grid plate 311 onto the working surface 5 is located within the projection of the adjacent grid plate 311 on the right side of the grid plate 311 onto the working surface 5. Thus, when viewed vertically, several grid plates 311 will form a closed surface, and when dew drips, it will contact the grid plate 311 along the vertical direction. Therefore, the grid plate 311 can block all the dew dripping along the vertical direction, ensuring the normal operation of the unit; at the same time, the vent 4 between several grid plates 311 can allow air to pass through freely.

[0046] like Figure 2 As shown, during operation, hot air around the unit will pass through the vents 4 between the grid plates 311. However, due to the presence of the grid plates 311 and the folded edges 7, air resistance will exist when the air passes through. In order to reduce air resistance, combined with... Figure 3 As shown, an air guide surface 8 is provided on the side of the folded edge 7 away from the working surface 5. The angle between the plane where the air guide surface 8 is located and the plane where the working surface 5 is located is 30-50 degrees. In this embodiment, the angle between the plane where the air guide surface 8 is located and the working surface 5 is 45 degrees. Since the smaller the angle between the air guide surface 8 and the working surface 5, the less resistance to air. And the smaller the angle between the plane where the air guide surface 8 is located and the working surface 5, the smaller the distance between adjacent grid plates 311 will be. Therefore, through multiple tests, when the angle between the plane where the air guide surface 8 is located and the working surface 5 is 45 degrees, it has better air passage.

[0047] like Figure 2 , 4 As shown, water guide grooves 9 are provided along the length of the side plate 19. In this embodiment, there are two water guide grooves 9, located at both ends of the grid plate 311 and below the grid plate 311. Notches 21 are provided at the folded edges 7 at both ends of the grid plate 311, and the water guide grooves 9 are located just below the notches 21. A groove plate 17 is provided at the left end of the support 1. The projection of the first side edge 3111 of the leftmost grid plate 311 on the working surface 5 is located on the groove plate 17. Within the projection on the working surface 5, the trough plate 17 and the support 1 form a water collection trough 22. The water guide trough 9 is connected to the water collection trough 22. A water outlet 15 is provided on the support 1, and the water outlet 15 is connected to the water collection trough 22. When dew falls on the grid plate 311, the dew gathers in the water receiving trough 6 along the surface of the grid plate 311. Then, it flows from the water receiving trough 6 to the gap 21 and enters the water guide trough 9. Finally, it enters the water collection trough 22 from the water guide trough 9 and is collected from the water outlet 15.

[0048] like Figure 2 As shown, a baffle plate 16 is provided at the end of the support 1 away from the groove plate 17. The baffle plate 16 is located on the upper side of the support 1 and is located between the rightmost grid plate 311 and the support 1. The projection of the folded edge 7 on the rightmost grid plate 311 on the working surface 5 is located within the projection of the baffle plate 16 on the working surface 5. Through the groove plate 17 and the baffle plate 16, the situation of dew dripping into the unit through the gap between the support 1 and the grid plate 311 can be prevented.

[0049] In use, the working surface 5 is set vertically and installed above the unit, and then the air cooler is installed above the bracket 1. At this time, the projection of the air cooler on the working surface 5 is entirely within the working surface 5.

[0050] Example 2:

[0051] A hydro-generator condensate inlet, such as Figure 5 As shown, the difference from Embodiment 1 is that the first side 3111 end of the grid plate 311 is hinged to the bracket 1, and the hinge shaft 12 is along the length direction of the grid plate 311. In this way, the grid plate 311 can rotate around the hinge shaft 12 and change the tilt angle of the grid plate 311. A support plate 10 is slidably connected to the side plate 19. In this embodiment, the support plate 10 slides along the direction perpendicular to the working surface 5, and the support plate 10 is located just below the two ends of the grid plate 311, and the water tank 6 is located on the support plate 10. The second side 3112 of the grid plate 311 slides and overlaps on the support plate 10. At the same time, a drive device 11 is provided on the bracket 1. The drive device 11 can make the support plate 10 move back and forth along the direction of the vertical working surface 5. When the support plate 10 slides upward, the tilt angle of the grid plate 311 will increase. At this time, the air vent 4 between the grid plates 311 will gradually become smaller. When the support plate 10 slides downward, the air vent 4 will become larger. In this way, the size of the air vent 4 can be adjusted by the drive device 11.

[0052] In this embodiment, at the outlet 15 (refer to...) Figure 2 A flow detection device is installed at the location, and the flow detection device is electrically connected to the drive device 11. When the air cooler is damaged and leaks, the flow detection device detects an increase in the water flow through the outlet 15. The flow detection device will output a signal to the control system. At this time, the control system will output a signal to the drive device 11, causing the drive device 11 to drive the support plate 10 to rise, so that the vent 4 (refer to) Figure 2 The leakage is reduced until it is shut off, which prevents large leaks of water from entering the unit and damaging it. Simultaneously, the control device is connected to an alarm. When the control device sends a signal to the drive unit 11, the alarm is activated synchronously to alert personnel to promptly check and troubleshoot the leak.

[0053] In this embodiment, the driving device 11 includes a motor 111 and a cam 112 rotatably mounted on the bracket 1. The motor 111 drives the cam 112 to rotate, and the cam 112 is located below the support plate 10. The support plate 10 is in contact with the cam 112. When the cam 112 rotates, it can push the support plate 10 to move up and down.

[0054] Example 3:

[0055] Reference Figure 6 As shown, a hydro-generator air cooler includes a hydro-generator condensate collector as described in Embodiment 1 or Embodiment 2, and an air cooler body 13. In use, the air cooler body 13 is installed directly above the condensate collector, and the working surface 5 of the condensate collector faces the air inlet side 14 at the bottom of the air cooler, so that the hot air around the unit below can enter the air cooler body 13 for cooling through the condensate collector.

[0056] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A dew collector for a hydro-generator, characterized in that: Includes a support (1) and a water-blocking component (3) located on the support (1). A vent (4) for air to pass through is provided between the water-blocking component (3) and the support (1). The support (1) includes a working surface (5). The projections of the water-blocking component (3) and the support (1) on the plane of the working surface (5) are located within the working surface (5), and the projection area of ​​the water-blocking component (3) and the support (1) on the plane of the working surface (5) is the same as the area of ​​the working surface (5). A water-receiving groove (6) is provided on the water-blocking component (3). The water-blocking component (3) includes a plurality of spaced grid plates (311), with ventilation openings (4) formed between adjacent grid plates (311). The plurality of grid plates (311) are arranged side by side and inclined. Each grid plate (311) includes a first side (3111) and a second side (3112). The first side (3111) and the second side (3112) are arranged opposite to each other. The first side (3111) is located on the side of the grid plate (311) closer to the working surface (5), and the second side (3112) of the grid plate (311) is inclined to the side away from the working surface (5). The first side (3111) end of the grid plate (311) is hinged to the bracket (1), and the hinge shaft (12) is along the length direction of the grid plate (311). The bracket (1) includes two opposing end plates (18) and two opposing side plates (19). A support plate (10) is slidably connected to the side plate (19). The support plate (10) slides along the direction of the vertical working surface (5). The support plate (10) is located just below the two ends of the grid plate (311), and the water tank (6) is located on the support plate (10). The second side (3112) of the grid plate (311) slides on the support plate (10). At the same time, a drive device (11) is provided on the bracket (1). The support plate (10) can be moved back and forth along the direction of the vertical working surface (5) by the drive device (11). The bracket (1) is provided with a water guide groove (9), and the water receiving grooves (6) on several grid plates (311) are all connected to the water guide groove (9); The water guide channel (9) is located on the end side of the grid plate (311); A trough plate (17) is provided on the left end of the support (1), and a water collection trough (22) is formed between the trough plate (17) and the support (1). A water guide trough (9) is connected to the water collection trough (22). A water outlet (15) is provided on the support (1), and the water outlet (15) is connected to the water collection trough (22). A flow detection device is provided at the position of the water outlet (15), and the flow detection device is electrically connected to the drive device (11).

2. The dew collector for a hydro-generator according to claim 1, characterized in that: The projection of the first side (3111) of the grid plate (311) on the working surface (5) is located within the projection of the adjacent grid plate (311) on one side of the grid plate (311) on the working surface (5), and the projection of the second side (3112) of the grid plate (311) on the working surface (5) is located within the projection of the adjacent grid plate (311) on the other side of the grid plate (311) on the working surface (5). The water receiving trough (6) is located at the second side (3112) of the grid plate (311).

3. The dew collector for a hydro-generator according to claim 2, characterized in that: The water receiving trough (6) is distributed along the length of the grid plate (311).

4. A hydro-generator dew collector according to claim 2, characterized in that: The second side (3112) of the grid plate (311) is folded towards the working surface (5) to form a folded edge (7), and the water receiving trough (6) is formed by the folded edge (7).

5. A hydro-generator dew collector according to claim 4, characterized in that: The folded edge (7) is provided with an air guide surface (8) on the side away from the working surface (5).

6. A hydro-generator dew collector according to claim 5, characterized in that: The angle between the plane where the air guide surface (8) is located and the plane where the working surface (5) is located is 30-50 degrees.

7. A hydro-generator dew collector according to claim 2, characterized in that: The first side (3111) end of the grid plate (311) is hinged to the bracket (1). The intersection axis of the grid plate (311) and the bracket (1) is set along the length direction of the first side (3111). A support plate (10) is slidably arranged on the bracket (1) in the direction toward or away from the working surface (5). The grid plate (311) is located between the support plate (10) and the working surface (5). The second side (3112) side of the grid plate (311) is slidably overlapped on the support plate (10). A driving device (11) for driving the support plate (10) to slide is provided on the bracket (1).

8. An air cooler for a hydro-generator, characterized in that: The device includes a hydro-generator dew collector as described in any one of claims 1 to 7, and further includes an air cooler body (13), wherein the bracket (1) is disposed on the air inlet side (14) of the air cooler body (13).

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