Floating hydroelectric generator

Abstract

The invention relates to the technical field of hydroelectric generation, in particular to a floating type hydroelectric generator which is characterized by comprising a cross-shaped floating cavity assembly, a support assembly, an impeller and generator assembly and a damping cylinder assembly. By arranging the cross-shaped floating cavity, the impeller body of the hydroelectric generator can be located at the upper position in water when the water level is high or low, movement is flexible, frequent dredging is avoided, and the hydroelectric generator is particularly suitable for water areas and emergencies with large seasonal water level changes and more sludge and impurities; by arranging the damping cylinder assembly, multi-direction buffering unloading damping is achieved, and therefore the equipment operation reliability is improved, and the service life is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydropower generation, and more specifically, relates to a floating hydropower generator. Technical Background

[0002] Hydropower generation is an important renewable energy technology and plays a key role in the global energy structure transformation. Most existing river channel hydropower generators are fixed type. Fixed hydropower generators are generally fixed in the sediment at the bottom of the water, and it is necessary to consider aquatic plants and how to fix them in the sediment without being washed away, which has relatively high requirements for the bottom terrain environment, and it is necessary to frequently clean the silted sediment.

[0003] River power generation has variability. Generally, the water level and flow velocity of rivers change greatly and show intermittent changes. Therefore, it is very difficult to have available hydropower resources for a long time at the same river channel location. For fixed hydropower generators, because they are fixed at the bottom of the water, when the water flow velocity becomes low and the river power generation efficiency is extremely low, it is not convenient to move and they lack flexibility. At the same time, when the water flow suddenly becomes larger and the sediment and impurities in the water increase, the fixed hydropower generators are also greatly worn by the impact of the water flow and the impurities at the bottom of the river channel.

[0004] The installation of fixed hydropower generators is relatively complex and time-consuming. Especially in some areas flooded by floods or earthquake disaster areas, the power supply is cut off, and it cannot meet the temporary emergency power supply needs during fixation.

[0005] In addition, impact vibration has a significant impact on the performance, life and safety of mechanical equipment. Especially for hydropower generators, being in flowing water for a long time, the equipment is constantly affected by impact vibration, which has a huge impact on the operation reliability and life of the equipment. Summary of the Invention

[0006] To solve the problems of sediment deposition, poor flexibility and impact vibration of river channel hydropower generators, the present invention provides a floating hydropower generator.

[0007] To achieve the above object, the technical solutions adopted by the present invention are as follows:

[0008] A floating hydroelectric generator, characterized in that it comprises a cross float chamber assembly, a bracket assembly, an impeller and generator assembly, and a shock absorbing assembly; the bracket assembly is composed of a left bracket 22 and a right bracket 21; the cross float chamber assembly is fixedly connected to the shock absorbing assembly through the bracket assembly, and the impeller and generator assembly is fixedly connected to the shock absorbing assembly; the cross float chamber assembly is composed of a left float chamber 14, a right float chamber 12, a front float chamber 16, a rear float chamber 11, a cross float chamber frame 15, and a locking hook 13, the left float chamber 14 is fixedly connected to the left side of the cross float chamber frame 15, and the right float chamber 12 is fixedly connected to the left side of the cross float chamber frame 15. The front floating chamber 16 is fixedly connected to the right side of the cross floating chamber frame 15, the front floating chamber 16 is fixedly connected to the front section of the cross floating chamber frame 15, and the rear floating chamber 11 is fixedly connected to the rear end of the cross floating chamber frame 15; the impeller and generator assembly consists of an impeller 31 and a generator 32, and the impeller 31 is movably connected to the generator 32; the shock absorbing assembly consists of a buffer shell 41, a shock absorbing cylinder 42, a movable hinge 45, a radial shock absorber 44, and an axial shock absorber 46. The inner wall of the buffer shell 41 is evenly provided with four slide grooves 43 along the entire length, and the front and rear ends of the outer wall of the shock absorbing cylinder 42 are respectively A roller group is separately provided, and the roller group is composed of four rollers 47 evenly distributed on the outer wall of the shock-absorbing cylinder 42, and the rollers 47 are movably connected to the slide groove 43. The two ends of the radial shock absorber 44 are respectively fixedly connected to the shock-absorbing cylinder 42 and the generator 32 through the movable hinge 45, and the two ends of the axial shock absorber 46 are respectively fixedly connected to the shock-absorbing cylinder 42 and the buffer shell 41; further, the four front, rear, left and right floating cavities are all streamlined floating cavities, the left floating cavity 14 and the right floating cavity 12 are symmetrical on the left and right, and the front floating cavity 16 and the rear floating cavity 1 1 is symmetrical front and back, the locking hook 13 is fixedly connected to the left floating cavity 14 and the right floating cavity 12; there are six radial shock absorbers 44, three of which are in a group, and the three radial shock absorbers 44 in the group are evenly distributed in the same radial plane; the inner wall of the shock absorbing cylinder 42 contains six bosses, three of which are in a group, and the bosses in the group are evenly distributed in the radial plane; one of the bosses in the group of bosses coincides with the position of one of the rollers 47 in the roller group, and both are located below the axis of the generator 32; the movable hinge 45 can only rotate in the radial plane.

[0009] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0010] The present invention obtains upward buoyancy and prevents being washed away by water flow by arranging a float chamber and a locking hook, so that the floating hydroelectric generator floats on the upper part of the water when generating electricity. It does not require complicated installation and is flexible to move when the river enters the dry season and cannot generate electricity effectively. It can also be used for emergency power supply and can avoid silt accumulation and frequent silt removal. The float chambers are symmetrically arranged, which reduces the shaking of the generator caused by water surface fluctuations.

[0011] The present invention reduces impact vibration by providing a shock absorption component, improves the stability of the generator during operation, reduces the risk of equipment damage, and enhances the operational reliability and lifespan of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a floating hydroelectric generator provided by an embodiment of the present invention.

[0013] Figure 2 FIG. 2 is a cross-sectional view of the underwater part of a floating hydroelectric generator provided by an embodiment of the present invention.

[0014] Figure 3 FIG. 3 is an internal structure diagram of the underwater part of a floating hydroelectric generator provided by an embodiment of the present invention.

[0015] Figure 4 FIG. 4 is a partially enlarged view of the roller of a floating hydroelectric generator provided by an embodiment of the present invention.

[0016] Reference numerals in the figures: 11 - rear floating cavity, 12 - right floating cavity, 13 - locking hook, 14 - left floating cavity, 15 - cross floating cavity frame, 16 - front, 21 - right support, 22 - left support, 31 - impeller, 32 - generator, 41 - buffer housing, 42 - shock absorption cylinder, 43 - sliding groove, 44 - radial shock absorber, 45 - movable hinge, 46 - axial shock absorber, 47 - roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention.

[0018] Such as Figure 1 、 Figure 2 and Figure 3, this embodiment discloses a floating hydraulic generator, which is characterized in that it includes a cross floating cavity assembly, a bracket assembly, an impeller and a generator assembly, and a shock absorption assembly; the bracket assembly is composed of a left bracket 22 and a right bracket 21; the cross floating cavity assembly is fixedly connected to the shock absorption assembly through the bracket assembly, and the impeller and generator assembly are fixedly connected to the shock absorption assembly; the cross floating cavity assembly is composed of a left floating cavity 14, a right floating cavity 12, a front floating cavity 16, a rear floating cavity 11, a cross floating cavity frame 15, and a locking hook 13. The left floating cavity 14 is fixedly connected to the left side of the cross floating cavity frame 15, the right floating cavity 12 is fixedly connected to the right side of the cross floating cavity frame 15, the front floating cavity 16 is fixedly connected to the front section of the cross floating cavity frame 15, and the rear floating cavity 11 is fixedly connected to the rear end of the cross floating cavity frame 15; the impeller and generator assembly is composed of an impeller 31 and a generator 32, and the impeller 31 is movably connected to the generator 32; the shock absorption assembly is composed of a buffer housing 41, a shock absorption cylinder 42, a movable hinge 45, a radial shock absorber 44, and an axial shock absorber 46. Four chutes 43 are uniformly arranged on the inner wall of the buffer housing 41 along the entire length. Roller groups are respectively arranged at the front end and the rear end of the outer wall of the shock absorption cylinder 42. The roller group is composed of four rollers 47 evenly distributed on the outer wall of the shock absorption cylinder 42. The roller 47 is movably connected to the chute 43. Both ends of the radial shock absorber 44 are fixedly connected to the shock absorption cylinder 42 and the generator 32 respectively through the movable hinge 45. Both ends of the axial shock absorber 46 are fixedly connected to the shock absorption cylinder 42 and the buffer housing 41 respectively; further, the four floating cavities in the front, rear, left, and right directions are all streamlined floating cavities. The left floating cavity 14 and the right floating cavity 12 are symmetrical left and right, the front floating cavity 16 and the rear floating cavity 11 are symmetrical front and rear, and the locking hook 13 is fixedly connected to the left floating cavity 14 and the right floating cavity 12; there are a total of six radial shock absorbers 44, three in a group, and the three radial shock absorbers 44 in the group are evenly distributed in the same radial plane; there are six bosses on the inner wall of the shock absorption cylinder 42, three in a group, and the bosses in the group are evenly distributed in the radial plane; one of the bosses in the group coincides with one of the rollers 47 of the roller group, and both are located below the axis of the generator 32; the movable hinge 45 can only rotate in the radial plane.

[0019] As Figure 1 , the left floating cavity 14, the right floating cavity 12, the front floating cavity 16, and the rear floating cavity 11 are hollow inside and float on the water surface, providing upward buoyancy for this floating hydraulic generator, enabling this floating hydraulic generator to float on the upper part of the water during power generation, without complex installation. When the river enters the dry season and power generation cannot be effectively carried out, it is flexible to move, and can also be used for emergency power supply, and can avoid problems such as sediment deposition and frequent dredging.

[0020] As Figure 1, the present invention fixes the floating hydro-generator to the riverbank or fixed objects in the water by tying the locking hooks 13 on the left floating chamber 14 and the right floating chamber 12 with cables.

[0021] As Figure 1 , the front floating chamber 16 and the rear floating chamber 11 are symmetric front and back, reducing the front and back overturning motion of the generator 32; the left floating chamber 14 and the right floating chamber 12 are symmetric left and right, reducing the left and right overturning motion of the generator 32, thereby reducing the sway of the generator 32 caused by water surface fluctuations.

[0022] As Figure 2 and Figure 3 , when affected by the water flow and the generator 32 generates impact vibrations in four directions of up, down, left, and right in the radial plane, the generator 32 moves relatively in the radial plane. The radial shock absorbers 44 automatically adjust the angular position through the movable hinge 45, compress or stretch each radial shock absorber 44, realizing shock absorption in the radial plane and reducing the radial impact vibrations.

[0023] Further see Figure 3 and Figure 4 , when affected by the water flow and the generator 32 generates impact vibrations in the front and back directions, the roller 47 rolls in the chute 43 on the inner wall of the buffer housing 41, causing the shock absorption cylinder 42 to move back and forth, compress or stretch the axial shock absorber 46 connected to the end of the shock absorption cylinder 42, realizing shock absorption in the axial direction, reducing the impact vibrations, improving the working stability of the generator, reducing the risk of equipment damage, and improving the operation reliability and service life of the equipment.

[0024] The content described in the embodiments of this specification is only a list of the implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms stated in the embodiments. The protection scope of the present invention also extends to equivalent technical means that those skilled in the art can think of based on the inventive concept of the present invention.

Claims

1. A floating hydroelectric generator, characterized in that : It comprises a cross float chamber assembly, a bracket assembly, an impeller and generator assembly, and a shock absorbing assembly; the bracket assembly consists of a left bracket and a right bracket; the cross float chamber assembly is fixedly connected to the shock absorbing assembly through the bracket assembly, and the impeller and generator assembly is fixedly connected to the shock absorbing assembly; the cross float chamber assembly consists of a left float chamber, a right float chamber, a front float chamber, a rear float chamber, a cross float chamber frame, and a locking hook, the left float chamber is fixedly connected to the left side of the cross float chamber frame, the right float chamber is fixedly connected to the right side of the cross float chamber frame, the front float chamber is fixedly connected to the front section of the cross float chamber frame, and the rear float chamber is fixedly connected to the rear end of the cross float chamber frame; the impeller The generator assembly consists of an impeller and a generator, and the impeller is movably connected to the generator; the shock absorbing assembly consists of a buffer shell, a shock absorbing cylinder, a movable hinge, a radial shock absorber, and an axial shock absorber. The inner wall of the buffer shell is evenly provided with four slide grooves along the entire length, and the front end and the rear end of the outer wall of the shock absorbing cylinder are respectively provided with roller groups, and the roller groups are composed of four rollers evenly distributed on the outer wall of the shock absorbing cylinder, and the rollers are movably connected to the slide grooves, and the two ends of the radial shock absorber are respectively fixedly connected to the shock absorbing cylinder and the generator through the movable hinge, and the two ends of the axial shock absorber are respectively fixedly connected to the shock absorbing cylinder and the buffer shell.

2. A floating hydroelectric generator according to claim 1, characterized in that: The four float chambers in front, back, left and right are all streamlined float chambers. The left float chamber and the right float chamber are symmetrical in left and right, and the front float chamber and the rear float chamber are symmetrical in front and back. The locking hook is fixedly connected to the left float chamber and the right float chamber.

3. A floating hydroelectric generator according to claim 1, characterized in that: There are six radial shock absorbers in total, three of which are in a group, and the three radial shock absorbers in the group are evenly distributed in the same radial plane; the inner wall of the shock absorber cylinder contains six bosses, three of which are in a group, and the bosses in the group are evenly distributed in the radial plane; one of the bosses in the group of bosses coincides with the position of one of the rollers in the roller group, and both are located below the axis of the generator; the movable hinge can only rotate in the radial plane.

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