Fluid speed increasing and pressurizing device, power generation equipment and water pump

Abstract

The invention relates to the technical field of hydroelectric generation, in particular to a fluid speed increasing and pressurizing device, power generation equipment and a water pump, the fluid speed increasing and pressurizing device comprises a main body pipe, a paddle assembly, a drainage pipe, a boosting part and a transmission assembly, a liquid passing hole and an avoiding hole are formed in the side wall of the main body pipe, and the paddle assembly is installed at the position, corresponding to the avoiding hole, of the outer wall of the main body pipe; the lyophobic pipe can rotate around the axis of the main body pipe and is arranged in an inner cavity of the main body pipe, and the boosting piece is installed at the liquid inlet end of the lyophobic pipe; the transmission assembly is arranged at the receding hole and used for transmitting rotating power of the paddle assembly to the boosting piece so as to push fluid to flow towards the liquid outlet end of the liquid drainage pipe. Water flow pushes the paddle assembly to rotate so as to drive the boosting piece at the liquid inlet end of the lyophobic pipe to rotate, and the rotating speed of the boosting piece is increased by utilizing the transmission ratio of the paddle assembly to the boosting piece, so that the water flow entering the lyophobic pipe is accelerated and pressurized, and the kinetic energy of the water flow flowing out of the lyophobic pipe is improved; and the conversion efficiency of converting water flow kinetic energy into mechanical energy is improved.

Description

Technical Field

[0001] This application relates to the field of hydropower technology, and in particular to fluid speed-increasing and pressurizing devices, power generation equipment and water pumps. Background Technology

[0002] Hydropower generation utilizes the potential energy of water flowing from higher elevations, such as rivers and lakes, to lower elevations. This potential energy is converted into the kinetic energy of a turbine, which then powers a generator to produce electricity. In essence, hydropower uses water power (with head) to drive a water turbine, converting water energy into mechanical energy. If another machine (a generator) is connected to the turbine, electricity is generated as the turbine rotates, thus converting mechanical energy back into electrical energy. Hydropower generation, in a sense, is the process of converting the potential and kinetic energy of water into mechanical energy, and then into electrical energy.

[0003] However, in the process of converting water flow energy into mechanical energy for power generation, there is a lot of suspended debris in the water flow. This debris can easily become entangled and attached to the mechanical structure during the flow, causing the transmission structure to fail due to the twisting of the debris. This damages the transmission structure and makes it difficult to clean, which also limits the conversion efficiency of water energy. Summary of the Invention

[0004] This application provides a fluid speed-increasing and pressurizing device, a power generation device, and a water pump to solve the problem in the prior art that in the process of converting water flow energy into mechanical energy for power generation, suspended garbage in the water flow is easily entangled and attached to the mechanical structure, causing the transmission structure to fail due to the twisting of the garbage, and the garbage is difficult to clean, resulting in low water energy conversion efficiency.

[0005] On one hand, this application provides a fluid speed-increasing and pressurizing device, comprising: The main tube has liquid passage holes and clearance holes on its side wall; The blade assembly is installed on the outer wall of the main tube at the position corresponding to the clearance hole, and can rotate around the axis of the main tube; A liquid-repellent tube is located inside the main tube. A booster is installed at the inlet end of the liquid-absorbing tube; The transmission component, located at the clearance hole, is used to transmit the rotational power of the blade assembly to the booster, thereby propelling the fluid to flow towards the outlet end of the phreatic tube.

[0006] In one possible design, the liquid-repellent tubes comprise multiple tubes arranged circumferentially within the inner cavity of the main tube.

[0007] In one possible design, the blade assembly includes multiple sets spaced apart along the length of the main tube, with each blade assembly corresponding to a booster, and adjacent sets of blade assemblies rotating in opposite directions.

[0008] In one possible design, each blade assembly includes: The ring seat is fitted onto the main tube at the position corresponding to the clearance hole and rotates with the outer wall of the main tube. The blades are evenly mounted on the ring seat along the circumference and can drive the ring seat to rotate under the impact of the fluid.

[0009] In one possible design, the blade and the ring seat rotate together, and an elastic component is provided on the back side of the blade. The elastic component is connected to the blade and the ring seat respectively. The elastic component adjusts the angle between the blade and the main tube by being compressed and deformed. And / or, the blades are made of elastic material.

[0010] In one possible design, the transmission components include: The support is fixed to the inner wall of the main tube and rotates with the outer wall of the booster. The intermediate gear is mounted on the support. The first chain is wound around the inner ring wall of the ring seat and meshes with the middle gear; The second chain is wound around the outer wall of the booster and meshes with the intermediate gear.

[0011] In one possible design, the device also includes: A floating body, the density of which is less than the density of the fluid; The connecting arm is connected to the float at the top and to the main tube at the bottom. Anchor cables are used to connect the float and / or the main tube.

[0012] In one possible design, a scraper is provided on the front side of the connecting arm, and the scraper can move along the length of the connecting arm.

[0013] On the other hand, this application also provides a power generation device, including a generator and a fluid speed-increasing and pressurizing device as described above.

[0014] Furthermore, this application also provides a water pump, including the fluid speed-increasing and pressurizing device described above.

[0015] The beneficial effects of this application are as follows: The fluid speed-increasing and pressurizing device of this application is installed in an open channel or river. By opening a liquid passage hole in the main pipe, it can prevent garbage in the water from entering the inner cavity of the main pipe and prevent garbage from getting tangled on the booster component at the liquid inlet end of the condensate drain pipe. The water flow drives the blade assembly to rotate, which in turn drives the booster component to rotate. By utilizing the transmission ratio between the blade assembly and the booster component, the rotational speed of the booster component is increased, thereby speeding up and pressurizing the water flow entering the condensate drain pipe, increasing the kinetic energy of the water flow flowing out of the liquid outlet end of the condensate drain pipe, which is beneficial to improving the conversion efficiency of the water flow's kinetic energy into mechanical energy.

[0016] The power generation equipment provided in this application includes the fluid speed-increasing and pressurizing device described in this application. The speed-increasing and pressurized water flows out from the outlet end of the condensate pipe to the generator impeller, thereby converting the kinetic energy of the speed-increasing and pressurized water flow into electrical energy, improving power generation efficiency, and continuously transmitting power to the shore through the cable equipment.

[0017] The water pump provided in this application includes the fluid speed-increasing and pressurizing device described in this application. The water flow after speed-increasing and pressurizing is discharged from the outlet end of the condensate drain pipe, thereby improving the efficiency of liquid transportation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A perspective view of the fluid speed-increasing and pressurizing device provided in the embodiments of this application; Figure 2 A front view of the fluid speed-increasing and pressurizing device provided in the embodiments of this application; Figure 3 A side view of the fluid speed-increasing and pressurizing device provided in an embodiment of this application; Figure 4 for Figure 3 Sectional view of AA; Figure 5 for Figure 4 A magnified schematic diagram of the structure of B in one of the embodiments; Figure 6 for Figure 4 A magnified schematic diagram of the structure at position B in another embodiment; Figure 7 for Figure 4 Enlarged schematic diagram of the structure at point C; Figure 8 for Figure 2 A sectional view of DD.

[0020] Figure label: 100. Main tube; 110. Liquid passage hole; 120. Clearance hole; 200. Liquid drain pipe; 300. Propeller; 310. Cylinder; 320. Blade; 400. Transmission assembly; 410. Support; 420. Intermediate gear; 430. First chain; 440. Second chain; 500. Blade assembly; 510. Ring seat; 520. Blade; 600. Elastic assembly; 610. First spring plate; 620. Second spring plate; 630. Sealing cover; 640. Guide seat; 650. Rack; 660. Return spring; 670. Synchronizing gear; 680. Pin; 710. Float; 720. Connecting arm; 730. Anchor cable; 740. Generator; 810. Scraper; 820. Transmission wheel; 830. Transmission chain; 900. Hose. Detailed Implementation

[0021] The technical solutions of this application will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] The following is combined Figures 1-6 This describes the fluid speed-increasing and pressurizing device provided in the embodiments of this application.

[0023] Reference Figures 1-6 As shown, the fluid speed-increasing and pressurizing device provided in this application embodiment is used to be deployed in rivers or open channels. Water flowing into the river or open channel is accelerated and pressurized after entering the device. The device includes a main tube 100, a blade assembly, a liquid-repellent tube 200, a propulsion component 300, and a transmission assembly 400. The main tube 100, blade assembly, and liquid-repellent tube 200 are made of a material with a density less than or equal to the density of water, such as PVC or polymer materials, so that the device can be suspended in water.

[0024] The main tube 100 has several liquid passage holes 110 on its side wall. Water enters the inner cavity of the main tube 100 through the liquid passage holes 110, while preventing debris in the water from entering the inner cavity of the main tube 100, thus preventing debris from getting tangled on the condensate drain pipe 200 and the propulsion component 300. The main tube 100 also has clearance holes 120 on its side wall. The blade assembly is installed on the outer wall of the main tube 100 at the position corresponding to the clearance holes 120. Under the impact of the water flow, the blade assembly can rotate around the axis of the main tube 100. The condensate drain pipe 200 is disposed in the inner cavity of the main tube 100, and the condensate drain pipe 200 has an inlet end and an outlet end that are arranged opposite each other. A booster 300 is rotatably mounted on the inlet end of the phreatic tube 200. The booster 300 includes a cylinder 310 rotatably mounted on the inlet end of the phreatic tube 200 and blades 320 distributed on the inner wall of the cylinder 310. The rotation of the cylinder 310 drives the blades 320 to rotate, thereby propelling the water flow to accelerate towards the outlet end and increasing the water pressure. A transmission assembly 400 is disposed at the clearance hole 120. The transmission assembly 400 is used to transmit the rotational power of the blade assembly to the booster 300, causing the booster 300 to push the fluid towards the outlet end of the phreatic tube 200.

[0025] By utilizing the technical solution provided in the above embodiments, by opening a liquid passage hole on the main tube, it is possible to prevent debris in the water from entering the inner cavity of the main tube and to prevent debris from getting tangled on the booster component at the liquid inlet end of the condensate drain pipe. The water flow drives the paddle assembly to rotate, thereby driving the booster component 300 at the liquid inlet end of the condensate drain pipe 200 to rotate. By utilizing the transmission ratio between the paddle assembly and the booster component 300, the rotational speed of the booster component 300 is increased, thereby accelerating and pressurizing the water flow entering the condensate drain pipe 200, increasing the kinetic energy of the water flow flowing out from the liquid outlet end of the condensate drain pipe 200, which is beneficial to improving the conversion efficiency of the water flow's kinetic energy into mechanical energy.

[0026] In some specific embodiments, the booster 300 may be a shaftless hydraulic impeller, an Archimedes' screw, or a horizontal shaft helical blade. The transmission assembly 400 may be a gear transmission structure.

[0027] Reference Figure 4 As shown, in some embodiments of this application, the liquid-repellent tube 200 includes multiple tubes, which are arranged circumferentially within the inner cavity of the main tube 100. For example, there are six liquid-repellent tubes 200, which are evenly installed circumferentially within the inner cavity of the main tube 100. Each liquid-repellent tube 200 has a booster 300 installed at its inlet end. In this way, the outlet ends of multiple liquid-repellent tubes 200 can simultaneously output high-speed, high-pressure water flow. Generally, the high-speed, high-pressure water flow hits the impeller, thereby converting the kinetic energy of the water flow into the mechanical energy of the impeller rotation. Thus, the high-speed, high-pressure water flow sprayed evenly along the circumference impacts the impeller evenly, preventing the impeller from being biased to one side, thereby maintaining a constant output efficiency and protecting the impeller structure from damage due to asymmetrical force.

[0028] In some embodiments of this application, the liquid-repellent tubes 200 are of the same length, and an end plate is installed at the end of the main tube 100. Limiting holes are evenly formed along the circumference of the end plate. The outlet ends of all the liquid-repellent tubes 200 pass through the corresponding limiting holes, and the inlet ends of all the liquid-repellent tubes 200 are located at the same position in the main tube. Thus, multiple propulsion components 300 are distributed circumferentially at the same position within the main tube. Each propulsion component is connected to a transmission assembly between itself and the blade assembly. In this way, a set of blade assemblies can simultaneously drive multiple propulsion components 300 to rotate. This design reduces the length requirement of the main tube 100, making it suitable for bends in river channels.

[0029] Reference Figure 2 , Figure 3 , Figure 4 As shown, in some embodiments of this application, the blade assembly includes multiple sets spaced apart along the length of the main tube 100, with each blade assembly corresponding to a propeller 300. Specifically, the liquid-repellent tubes 200 have different lengths, and an end plate is installed at the end of the main tube 100. Limiting holes are evenly opened circumferentially on the end plate, and the liquid outlets of all the liquid-repellent tubes 200 pass through the corresponding limiting holes, thereby staggering the liquid inlet of each liquid-repellent tube 200, so that each propeller 300 corresponds to a blade assembly. In this way, each propeller is driven by a set of blade assemblies, ensuring that the propeller can maintain a high rotational speed; it can also prevent water flow from interfering with each other when multiple propellers 300 rotate; and it also ensures that each liquid inlet has sufficient water flow into the liquid-repellent tube 200.

[0030] In some specific embodiments, the rotation directions of adjacent sets of blade assemblies are opposite. This prevents all blade assemblies from rotating in the same direction, generating horizontal torque that could cause the main tube 100 to rotate and shift on the water surface. In some specific embodiments, the number of blade assemblies is an even number, and the bending directions of the blades 520 in adjacent sets of blade assemblies are opposite. This causes the blades 520 in adjacent sets of blade assemblies to experience opposite tangential forces from the water flow, resulting in opposite rotation directions of the blades 520 in adjacent sets of blade assemblies under the propulsion of the water flow. In this way, the tangential forces generated during the rotation of the blades 520 in adjacent sets of blade assemblies can cancel each other out, thereby preventing the tangential forces generated during the rotation of the blade assemblies from forcing the main tube 100 suspended in the water to rotate and causing turbulence, which would affect the water flow velocity and direction. This helps maintain a high impact velocity of the water flow on the surface of the blades 520.

[0031] Reference Figure 5 , Figure 6As shown, in some embodiments of this application, each blade assembly includes a ring seat 510 and a blade 520. The ring seat 510 is fitted onto the main body tube 100 at a position corresponding to the clearance hole 120, and the inner wall of the ring seat 510 is rotatably engaged with the outer wall of the main body tube 100. The blades 520 are uniformly mounted on the ring seat 510 circumferentially, and the blades 520 can drive the ring seat 510 to rotate under the impact of the fluid. The ring seat 510 transmits the rotational power to the booster 300 through the transmission assembly 400.

[0032] Reference Figure 8 As shown, in some specific embodiments, the transmission assembly 400 includes a support 410, an intermediate gear 420, a first chain 430, and a second chain 440. The support 410 is fixed to the inner wall of the main tube 100. A through hole is formed on the support 410, and the inner wall of the through hole rotatably engages with the outer wall of the cylinder 310 of the booster 300, thus allowing the booster 300 to be fixed to the support 410 without affecting its rotation. The support 410 also forms a channel communicating with the through hole. The intermediate gear 420 is mounted in the channel of the support 410 via an axle and is capable of rotation. The first chain 430 is fixedly wound around the inner ring wall of the ring seat 510 and meshes with the outer teeth of the intermediate gear 420; the second chain 440 is fixedly wound around the outer wall of the booster 300 and meshes with the outer teeth of the intermediate gear 420. The diameter of the first chain 430 is larger than the diameter of the second chain 440. Thus, when the fluid impacts the impeller 520 and drives the ring seat 510 to rotate, the first chain 430 on the inner wall of the ring seat 510 meshes with the intermediate gear 420, driving the intermediate gear 420 to rotate. Then, the other side of the intermediate gear 420 meshes with the second chain 440, driving the booster 300 to rotate (for example, driving the liquid wheel to rotate). By utilizing the transmission ratio between the impeller assembly and the booster 300 (for example, the transmission ratio between the ring seat 510 and the booster 300 is 1:10 or 1:20), the rotational speed of the booster 300 is increased, thereby accelerating and pressurizing the water flow entering the condensate drain pipe 200.

[0033] In some embodiments of this application, the blade 520 is rotatably mounted on the ring seat 510 via a pin. An elastic component is provided between the blade and the ring seat, and the elastic component is connected to both the blade 520 and the ring seat 510. The elastic component adjusts the angle between the blade 520 and the main tube 100 by deformation under compression. Thus, when the water flow velocity is too high, the blade 520 reduces its deployment angle, reducing the water-facing area and preventing input overload, achieving self-protection. When the water flow velocity is normal, the blade 520 automatically resets and actively increases its deployment angle. Simultaneously, when the blade 520's deployment angle is large, debris in the water easily gets caught on the blade 520. As the amount of debris caught on the blade 520 gradually increases, the debris pushes the blade 520 backward, reducing its deployment angle. At this point, the blade 520 gradually becomes horizontal, allowing the debris caught on the blade 520 to be washed away by the water flow, thereby preventing debris from accumulating on the blade 520 or the main tube 100.

[0034] Reference Figure 6 As shown, in some embodiments, the elastic component includes a first spring plate 610 and a second spring plate 620. One end of the first spring plate 610 is mounted on the blade 520, and one end of the second spring plate 620 is mounted on the ring seat 510. The first spring plate 610 and the second spring plate 620 abut against each other to form an arc shape bending in opposite directions. When the water flow velocity is too high, the blade 520 pushes the first spring plate 610 and the second spring plate 620 backward. As the first spring plate 610 and the second spring plate 620 deform, they slide against each other at the contact surface, thereby reducing the deployment angle of the blade 520 and the water-facing area, preventing input overload and achieving device self-protection. When the water flow velocity returns to normal, the elastic force of the first spring plate 610 and the second spring plate 620 will push the blade 520 back to its original position, increasing the deployment angle and the water-facing area to maintain a constant output speed. Meanwhile, when the blade 520 has a large unfolding angle, the garbage in the water will be hooked onto the blade 520; when the blade 520 has a small unfolding angle, the garbage in the water can be washed away by the water flow, preventing the garbage from accumulating on the blade 520 or the main tube 100.

[0035] Reference Figure 5As shown, in some specific embodiments, the elastic element includes a guide seat 640, a rack 650, a return spring 660, and a synchronizing gear 670. The guide seat 640 is mounted on the ring seat 510. The rack 650 and the return spring 660 are both disposed within the guide seat 640. The two sides of the rack 650 slide against the inner wall of the guide seat 640. One end of the return spring 660 is fixed to the inner wall of the guide seat 640, and the other end abuts against the end of the rack 650. The synchronizing gear 670 is sleeved on a pin. The synchronizing gear 670 rotates to drive the rack to move along the inner wall of the guide seat 640, thereby compressing the return spring 660 or causing the return spring 660 to return to its original position. When the water flow velocity is too high, the blade 520 rotates backward, driving the pin shaft and synchronous gear 670 to rotate. The synchronous gear meshes with the rack 650, causing the rack to move along the inner wall of the guide seat 640 and compress the return spring 660. This reduces the deployment angle of the blade 520 and the water-facing area, preventing input overload and achieving device self-protection. When the water flow velocity returns to normal, the elastic force of the return spring 660 pushes the rack 650 to move along the inner wall of the guide seat 640. The rack 650 meshes with the synchronous gear 670, causing the blade 520 to rotate back to its original position, increasing the deployment angle and water-facing area to maintain a constant output speed. Simultaneously, when the blade 520's deployment angle is large, debris in the water gets caught on the blade 520; when the blade 520's deployment angle decreases, the debris can be washed away by the water flow, preventing debris from accumulating on the blade 520 or the main tube 100.

[0036] In some specific embodiments, the blades are made of elastic materials. Through fiber layup design, these elastic materials achieve a "bending-torsional coupling effect," meaning the blades can adaptively adjust their pitch angle under stress, optimizing hydrodynamic performance. For example, the blades may use fiber-reinforced composite materials (such as carbon fiber, aramid fiber, glass fiber, etc.). Thus, when the water flow velocity is too high, the blades 520 bend backward due to their elasticity to reduce their deployment angle and water-facing area, preventing input overload and achieving device self-protection. When the water flow velocity returns to normal, the blades 520 automatically reset due to their elasticity, restoring their deployment angle and increasing their water-facing area to maintain a constant output speed. Simultaneously, when the blades 520 have a large deployment angle, debris in the water can be hooked onto them; when the blades 520 have a smaller deployment angle, debris can be washed away by the water flow, preventing debris accumulation on the blades 520 or the main tube 100.

[0037] Reference Figure 1As shown, in some specific embodiments, a sealing cover 630 is also installed at the connection between the blade 520 and the ring seat 510. The sealing cover 630 is made of a soft material, such as rubber. The sealing cover 630 covers the connection between the blade 520 and the ring seat 510, and the elastic component is placed inside the sealing cover 630. In this way, water and impurities in the water can prevent damage to the structure connecting the blade 520 and the ring seat 510, and it is beneficial to maintain the elastic resistance of the elastic component to the blade 520.

[0038] In some specific embodiments, the sealing cover 630 is an annular cover fitted onto the main tube 100. By designing the sealing cover 630 as an annular shape, the resistance generated during the rotation of the sealing cover 630 with the ring seat 510 can be reduced.

[0039] Reference Figure 1 As shown, in some embodiments provided in this application, the device further includes a float 710, a connecting arm 720, and an anchor cable 730. The float 710 has a density less than that of the fluid, and is made of materials such as PVC, polymers, or air cylinders to enable it to float on the water surface. The upper end of the connecting arm 720 is connected to the float 710, and the lower end of the connecting arm 720 is connected to the main pipe 100, thereby preventing the main pipe 100 from sinking. The anchor cable 730 includes at least two cables, at least one of which is connected to the float 710, and at least the other is connected to the tail end of the main pipe 100. The free ends of the anchor cables 730 are fixed to both sides of the river channel or to piles at the bottom of the river channel, thereby limiting the position of the main pipe 100 and preventing it from shifting.

[0040] Reference Figure 7 As shown, in some specific embodiments, a scraper 810 is provided on the flow-facing surface of the connecting arm 720, and the scraper 810 can move along the length direction of the connecting arm 720. Specifically, a cavity is formed inside the connecting arm 720, and a slot communicating with the cavity is opened on the flow-facing surface of the connecting arm 720. Two drive wheels 820 are installed in the cavity, and a drive chain 830 is sleeved on the two drive wheels 820. Multiple scrapers 810 are spaced apart on the drive chain 830, and the ends of the scrapers 810 located on the flow-facing surface can extend outside the slot. The drive wheels 820 drive the drive chain 830 to rotate, thereby driving the scrapers 810 to circulate back and forth along the length direction of the connecting arm 720. In this way, when the scraper 810 moves to the slot, it can capture the garbage in the water in time, and at the same time carry the captured garbage to the lower end of the connecting arm 720 and be washed away by the water flow, thereby preventing the garbage in the water from accumulating on the flow-facing surface of the device.

[0041] Reference Figure 1As shown, in some embodiments provided in this application, the main body pipe 100 includes multiple segments, and adjacent segments of the main body pipe 100 are axially connected by a flexible hose 900. In this way, when the water flow impact is large, the flexible hose 900 can offset the impact force of the water flow on the main body pipe 100 through deformation, preventing the main body pipe 100 from breaking due to local stress concentration.

[0042] The working principle of the fluid speed-increasing and pressurizing device in this application is as follows: When the fluid impacts the impeller 520 and drives the ring seat 510 to rotate, the first chain 430 on the inner wall of the ring seat 510 meshes with the intermediate gear 420, driving the intermediate gear 420 to rotate. Then, the other side of the intermediate gear 420 meshes with the second chain 440, driving the booster 300 to rotate (for example, driving the liquid wheel to rotate). By utilizing the transmission ratio between the impeller assembly and the booster 300 (for example, the transmission ratio between the ring seat 510 and the booster 300 is 1:10 or 1:20), the rotational speed of the booster 300 is increased, thereby accelerating and pressurizing the water flow entering the condensate drain pipe 200.

[0043] This application also provides a power generation device, including a generator and the fluid speed-increasing and pressurizing device described in the above embodiments. Specifically, the generator is installed at the end of the main body pipe 100, and the generator impeller is positioned opposite to the end of the condensate drain pipe 200. In this way, the high-speed, high-pressure water jet uniformly ejected from the circumferentially arranged condensate drain pipe 200 will uniformly impact the impeller, preventing the impeller from being biased to one side, thereby maintaining a constant output efficiency and protecting the impeller structure from damage due to asymmetrical force.

[0044] This application also provides a water pump, including the fluid speed-increasing and pressurizing device described in the above embodiments.

[0045] It should be noted that the water pump includes a fluid speed-increasing and pressurizing device, and therefore includes all the advantages of the fluid speed-increasing and pressurizing device mentioned above, which will not be repeated here.

[0046] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0050] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A fluid speed-increasing and pressurizing device, characterized in that, include: The main tube has liquid passage holes and clearance holes on its side wall; The blade assembly is installed on the outer wall of the main tube at the position corresponding to the clearance hole, and is capable of rotating around the axis of the main tube; A liquid-repellent tube is disposed within the inner cavity of the main tube; A booster is installed at the inlet end of the liquid-repellent tube; A transmission assembly, located at the clearance hole, is used to transmit the rotational power of the blade assembly to the booster, thereby propelling the fluid toward the outlet end of the phloem.

2. The fluid speed-increasing and pressurizing device according to claim 1, characterized in that: The liquid-repellent tubes include multiple tubes, which are arranged circumferentially within the inner cavity of the main tube.

3. The fluid speed-increasing and pressurizing device according to claim 1 or 2, characterized in that: The blade assembly includes multiple sets spaced apart along the length of the main tube, and the blade assembly corresponds to the booster in a one-to-one manner.

4. The fluid speed-increasing and pressurizing device according to claim 3, characterized in that, The rotation directions of two adjacent sets of blade assemblies are opposite, and each set of blade assemblies includes: The ring seat is fitted onto the main tube at the position corresponding to the clearance hole and rotates with the outer wall of the main tube; The blades are evenly mounted on the ring seat along the circumference and can drive the ring seat to rotate under the impact of the fluid.

5. The fluid speed-increasing and pressurizing device according to claim 4, characterized in that: The blade is rotatably engaged with the ring seat, and an elastic component is provided between the blade and the ring seat. The elastic component is connected to the blade and the ring seat respectively, and the elastic component adjusts the angle between the blade and the main tube by being compressed and deformed. And / or, the blades are made of an elastic material.

6. The fluid speed-increasing and pressurizing device according to claim 4, characterized in that, The transmission assembly includes: The support is fixed to the inner wall of the main tube and rotates with the outer wall of the booster. An intermediate gear is mounted on the support; The first chain is wound around the inner ring wall of the ring seat and meshes with the intermediate gear; The second chain is wound around the outer wall of the booster and meshes with the intermediate gear.

7. The fluid speed-increasing and pressurizing device according to claim 3, characterized in that, The device also includes: A floating body, the density of which is less than the density of the fluid; The connecting arm is connected at its upper end to the float and at its lower end to the main tube. Anchor cable, connected to the float and / or the main tube.

8. The fluid speed-increasing and pressurizing device according to claim 7, characterized in that: The upstream surface of the connecting arm is provided with a scraper, which can move along the length of the connecting arm.

9. A power generation device, characterized in that: Includes a generator and the fluid speed-increasing and pressurizing device as described in any one of claims 1-8.

10. A water pump, characterized in that: Includes the fluid speed-increasing and pressurizing device according to any one of claims 1-8.

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