291results about "Impulse engines" patented technology

The utility model relates to a nozzle device of an impulse turbine. The impulse turbine nozzle device comprises a spray pipe, an adjusting mechanism, a nozzle, a spray needle and a lining. The adjusting mechanism is installed in the spray pipe. The nozzle is of a conical hollow structure with two open ends. The large end of the nozzle is hermetically connected with one end of the spray pipe. And the end part of the large end of the spray needle is detachably connected with the end part of one end of the adjusting mechanism. And the spray needle is configured to integrally penetrate through the port of the small end of the nozzle. The lining is detachably installed in a port of the small end of the nozzle in a sealed mode and can make contact with the surface of the spray needle in a sealed mode. The bush is disposed so as to be entirely detachable from the small end side of the nozzle. According to the impulse turbine nozzle device, quick-wear parts such as the lining and the spray needle can be overhauled and replaced without disassembling the whole device, mounting and dismounting of the lining and the nozzle in an easy-wear power station are facilitated, the maintenance efficiency of the power station is greatly improved, and the economic benefit of the power station is improved.

The invention provides a hydraulic automatic fishway device, and relates to the technical field of hydraulic engineering, the hydraulic automatic fishway device comprises an arc fishway track, a multifunctional structure is rotatably mounted on the outer side of the arc fishway track, the multifunctional structure comprises a synchronous belt, a plurality of fish collecting plates are arranged on the surface of the synchronous belt, and each fish collecting plate is clamped with the synchronous belt; a fish collecting groove is formed in each fish collecting plate, a fish luring warm-color lamp strip is arranged in each fish collecting groove, through a multifunctional structure, when water flow impacts the water turbine from bottom to top, the water turbine rotates under the radial force of the water flow, so that radial force is generated on the fixing rod to rotate in the fixing frame, and meanwhile, the water flow impacts the water turbine through the water flow; the rotation of the fixing rod enables the driving bevel gear to rotate and to be engaged with the driven bevel gear, so that the driven bevel gear rotates, and then the rotating cross rod is controlled to drive the first gear to rotate and to be engaged with the inner tooth set, so that the synchronous belt can drive the fish collecting plate and the fish collecting groove to rotate, fish at the fishway inlet is brought to the upstream, and migration of the fish is helped.

The invention relates to the technical field of fluid machinery, in particular to an injection mechanism with a detachable injection needle tip and an impulse turbine system. The spray needle assembly comprises a supporting plate, a spray needle body and a spray needle tip, the supporting plate is fixed to the inner wall of the straight pipe section, and the spray needle body is movably connected to the other end of the supporting plate and detachably arranged at the other end of the spray needle body; the nozzle assembly is arranged at the opening of the straight pipe section, and the spray needle body and the spray needle tip can move in the direction close to or away from the nozzle assembly; the ratio of the length of the spray needle point to the diameter of the nozzle assembly is not larger than 0.2. According to the spraying mechanism with the detachable spraying needle tip and the impulse water turbine system, the spraying needle size with the optimal efficiency is given, and even if the spraying needle tip falls off, the influence on the hydraulic performance is small; the spray needle tip is detachably mounted on the spray needle body, so that the spray needle tip is convenient to disassemble and replace, and the performance of the spray needle assembly is ensured.

The invention discloses an impact type rotating wheel hollow water bucket structure and a manufacturing method thereof, and relates to the technical field of hydroelectric power generation, in particular to the manufacturing method of the impact type rotating wheel hollow water bucket structure, which comprises the following steps: S1, preparing an impact type rotating wheel hub and a water bucket root solid area through forging, milling, polishing and other process means; s2, calculating a water bucket hollow part model through the working stress of the rotating wheel; and S3, the prepared rotating wheel hub is clamped to a positioner, and according to the model calculated in the above steps, the additive manufacturing of the rotating wheel hollow water bucket is achieved by continuously and cooperatively adjusting the spatial position of the rotating wheel and the posture of a welding gun. The invention has the advantages of reducing the weight, improving the stability, reducing the inertia, prolonging the service life, saving the cost, promoting the sustainable development, optimizing the structural design, improving the performance, improving the efficiency, reducing the energy consumption, being convenient to manufacture and maintain and enhancing the adaptability.

The invention discloses a water turbine nozzle sealing structure and a manufacturing method thereof, and relates to the field of water turbine nozzle sealing, the water turbine nozzle sealing structure comprises a spray needle and a wear ring, the spray needle and the wear ring are provided with flow passing surfaces, a sealing surface exists in the flow passing surfaces, and the sealing surface of the spray needle and the sealing surface of the wear ring are attached to form hard sealing; the spray needle and the wear ring are respectively provided with a base body, a nitriding layer and a coating are sequentially arranged from the base bodies to an overflowing face, and the surface of the coating is the overflowing face. According to the sealing structure, it can be guaranteed that the overflowing faces of the spray needle and the wear ring are high in hardness and good in wear-resisting effect, meanwhile, the problem that the silt impact resistance and the cavitation resistance are insufficient is effectively solved, and therefore the service life of the sealing structure is prolonged.

The invention relates to the technical field of hydroelectric generation, in particular to an impulse turbine, a water bucket and a mortise and tenon joint structure for the water bucket and a hub. The water bucket comprises water bucket blades and tenons arranged at the roots of the blades; the shape of the tenon is configured to be movably assembled with a mortise formed in a hub of the water turbine in a fit clearance mode. According to the structure, a movable assembly mode with a fit clearance can be realized, and the water bucket can generate limited displacement in a gradual change clearance under different jet flow impact load conditions, so that the original traditional rigid connection is changed into flexible movable connection. The water bucket can be reliably connected with the hub without depending on welding or bolt fixing, and the common problem that in an original mode, a water head and a hub welding seam are prone to breakage under high-strength water impact force is solved.

The utility model relates to the technical field of water turbines, and discloses a high power generation efficiency water turbine which comprises an equipment box body and a power generation water tank arranged at the bottom of the equipment box body, a water wheel power generation assembly is arranged at the bottom in the power generation water tank, and an acceleration mechanism is arranged in an inner cavity of the equipment box body. The acceleration mechanism comprises an acceleration rotating rod rotationally connected with the middle of the top wall face of an inner cavity of the equipment box body and an acceleration spiral strip fixedly installed on the outer wall face of the acceleration rotating rod, the left end of the top wall face of the equipment box body is fixedly sleeved with a water inlet pipeline, and a driving groove is formed in the bottom of the rear end of the water inlet pipeline. And a driving mechanism for driving the acceleration rotating rod to rotate is arranged in the driving groove. By arranging the acceleration mechanism and the driving mechanism, the device utilizes gravitational potential energy of water flow to drive the acceleration spiral strip to rotate through the driving mechanism to accelerate water, the power generation efficiency of the device is improved, the use cost of the device is reduced, and the practicability of the device is improved.

The invention provides a design method for a water bucket notch of a multi-nozzle impulse turbine. According to the design method for the water bucket notch of the multi-nozzle impulse turbine, the problems of positioning and optimization of related sizes of the water bucket and the notch are fundamentally solved; the design accuracy and reliability are improved; the close combination of the design of the water bucket notch and the actual working water flow condition of the multi-nozzle impulse turbine is realized; it can be ensured that the interaction between the water bucket notch and water flow in actual operation reaches the optimal state, and energy loss or hydraulic performance reduction caused by unreasonable size is avoided; the shape of the water bucket notch and the shape of the water bucket can be optimally designed in a targeted mode, and the hydraulic efficiency of the multi-nozzle impulse turbine is further improved.

The utility model discloses a novel impulse turbine brake device which is characterized in that the center of a power generation rotating wheel disc is connected with a main shaft of a generator, a plurality of power generation water buckets are arranged around the power generation rotating wheel disc, an annular water distribution pipe is arranged on the outer sides of the power generation water buckets in the circumferential direction, and a plurality of power generation water spraying devices are arranged on the inner side of the annular water distribution pipe; a plurality of brake water buckets are arranged on the brake rotating wheel disc in a surrounding mode, a water pipe is arranged on one side of the end of the annular water distribution pipe, and a brake spray pipe is arranged at the tail end of the water pipe. When the power generation water turbine works, the braking water turbine shrinks in the concave cavity of the power generation rotating wheel disc, and power generation is not affected; when the power generation water wheel stops or breaks down, the brake shaft is controlled by the hydraulic operating mechanism to extend and drive the brake water turbine to enter a brake station, and the hydraulic needle valve on the brake spray pipe is opened, so that the impulse water turbine is quickly braked. The device effectively improves the braking efficiency and the operation stability of the impulse turbine, and is worthy of being vigorously popularized in future impulse power stations.

The invention relates to the technical field of hydroelectric generation, in particular to a method for determining distribution parameters of an impulse turbine, a water bucket and a pin column. The water bucket is of a double-bowl-shaped structure which is symmetrical along the water diversion blade, the water bucket is provided with an upstream face used for bearing water flow impact and a downstream face opposite to the upstream face, a plurality of pin columns are embedded in the downstream face in the normal direction of the downstream face, and the ends of the pin columns are matched with the surface of the upstream face to form a continuous smooth curved face of the upstream face. Under the conditions of high water head and sediment, deformation and cracking of the bucket and even damage of bucket breakage are avoided, and the service life of the bucket is prolonged.

The present application provides an impulse water turbine, an anti-erosion water bucket and an anti-erosion structure setting method. The water bucket has a double-bowl structure symmetrically along a water distribution edge. The water bucket has a water-impingement surface for bearing the impact of water flow and a backwater surface opposite to the water-impingement surface. The concave-convex points of the water-impingement surface are distributed in an array on both sides of the water distribution edge, the downstream area, the water outlet edge area and the water outlet area. The array of the concave-convex points on the inner surface of the water bucket can form a water film in the concave points under the impact of strong water flow. The water film generates a certain tension, thereby buffering the impact of the silt and protecting the inner surface of the water bucket. The anti-erosion performance of the water bucket of the impulse water turbine under the condition of high silt content can be greatly improved, and the problems of easy erosion, easy fracture and greatly shortened service life of the water bucket of the impulse water turbine under the conditions of high silt, high water head and strong impact force can be effectively solved.

The invention relates to a drainage device for a civil engineering tunnel, and belongs to the technical field of civil engineering drainage. The drainage device comprises a drainage box body, a water inlet pipe is arranged at the top of the drainage box body, a drainage pipe is arranged at the bottom of the side wall of the drainage box body, a filtering mechanism and a drainage mechanism are arranged in the drainage box body, the drainage mechanism is arranged at the drainage pipe, a collection box body is arranged on one side of the drainage box body, and the interior of the collection box body is communicated with the drainage box body. A collecting mechanism for collecting filtered matters is arranged in the filter chamber; the filtering mechanism comprises a first filtering plate obliquely arranged towards the collecting mechanism, a rotating paddle set rotationally installed on the drainage box body and a knocking assembly which is in transmission connection with the rotating paddle set and used for knocking the first filtering plate. Through reasonable design of the drainage device, the problem of water accumulation in the tunnel can be effectively solved, and slippery road surface and reduced visibility caused by water accumulation are avoided, so that the traffic capacity and safety of the road are improved.

The invention relates to the technical field of fluid machinery, in particular to a water distribution ring pipe with an adjustable pitch diameter and an impulse turbine system. The water distribution ring pipe comprises a water distribution main pipe which is of an annular structure and is arranged on the outer side of the rotating wheel; and the water distribution branch pipes are movably connected with the water distribution main pipe, the water distribution branch pipes are arranged towards the rotating wheels, and the spraying directions of the water distribution branch pipes are adjusted to be matched with the rotating wheels with different pitch circle diameters through the movable connection of the water distribution branch pipes and the water distribution main pipe. According to the water distribution ring pipe with the adjustable pitch circle diameter and the impulse turbine system, the spraying direction of the water distribution branch pipes can be matched with rotating wheels with different pitch circle diameters by adjusting the positions of the water distribution branch pipes; the whole set of water distribution ring pipe system does not need to be additionally designed and machined, other water distribution ring pipe assemblies do not need to be disassembled and replaced, the rotating wheels with different pitch circle diameters can be subjected to model tests only through one water distribution ring pipe, the machining design process is simplified, time and labor are saved, installation is convenient, working efficiency is improved, and economical efficiency is good.

The utility model discloses an assembly type impact rotating wheel, and belongs to the technical field of hydroelectric generating set devices. The structure comprises a wheel disc and a plurality of water buckets assembled on the circumference of the wheel disc, a concave groove is formed in the side wall of the circumference of the wheel disc, each water bucket comprises a bucket bucket and a bucket handle, the water buckets are assembled in the concave grooves through the bucket handles, and the bucket handles are positioned through a positioning mechanism and fixedly assembled on the wheel disc through a fixing structure; the water bucket is stable in structure, high in reliability and easy to implement, so that safe and stable operation of the whole unit is guaranteed, the stress condition of the root of the water bucket is optimized, the stress of the unit in the operation process is more uniform, meanwhile, the risks of flying and breaking of the water bucket are reduced through multiple guarantees, and safe and stable operation of the whole unit is guaranteed.

The invention belongs to the technical field of water turbine runners, and particularly relates to a bucket root configuration design method based on a negative Gaussian curved surface. According to the technical scheme, the bucket root configuration design method based on the negative Gaussian curved surface comprises the following steps that S1, a hydraulic design model is obtained and preliminarily analyzed; s2, rounding the part outside the high-stress area of the root in the step S1; s3, constructing a negative Gaussian curved surface of an unprocessed part in the step S2; s4, completing the structure and performing simulation calculation; and S5, according to the calculation result of the step S4, adjusting the parameters in the steps S2 and S3 until the parameters meet the requirements. According to the bucket root configuration design method based on the negative Gaussian curved surface, the root stress is reduced by constructing the negative Gaussian curved surface, the method does not depend on experience of users any more, meanwhile, mutual influence of parameters in different steps is reduced as much as possible, and the number of attempts of the users is reduced.

The invention relates to the technical field of clean energy power generation, in particular to a still water and mechanical wheel combined power generation system technology which is characterized in that a still water and mechanical wheel combined power generation system is composed of a water supply device, a frequency conversion speed control device, a mechanical wheel, a water energy tank, a water energy tank structure frame, an electromechanical device and a structure platform; according to the water supply device, a centrifugal pump is driven by a water pump motor, and still water in a water storage bin is lifted to a water energy tank to start a mechanical wheel. According to the speed control electric device, a high-speed speed control motor drives a multifunctional gearbox, the speed is converted to be smaller than 30 revolutions per minute, and then the mechanical wheel is controlled to rotate. The mechanical wheel comprises a water wheel shaft, a water wheel steel ring body, a water wheel steel ring body supporting frame and water wheel blades. The water wheel blades form a water containing included angle smaller than 75 degrees on the water wheel steel ring body. The water energy tank is an arc-shaped vertical water energy tank, the upper top end of the water energy tank is funnel-shaped, and the main body of the water energy tank is an arc-shaped tank; and the arc-shaped groove is matched with the joint section of the water wheel steel ring body in an arc shape.

Pelton turbine comprising an impeller (1) and at least one nozzle (2), and wherein the at least one nozzle comprises a movable needle for adjusting the flow of water through the nozzle, and wherein the Pelton turbine comprises a control device (3) for controlling the position of the needle, and wherein the nozzle comprises a main housing (5), a servomotor housing (4) which is arranged in the interior of the main housing, and at least one support (6) which connects the servomotor housing to the main housing, and wherein the Pelton turbine comprises a device (3, 9) for recording pressure measurement values and the nozzle comprises at least two pressure sensors (7) which are arranged on a support such that, during operation of the Pelton turbine, pressure measurement values can be recorded by the device (3, 9), and that a difference between the detected pressure measurement values can represent a measure of a throughflow quantity through the associated nozzle or a measure of the homogeneity of the water distribution in the associated nozzle.

The utility model relates to the technical field of generator set speed regulators, in particular to an impact generator set speed regulator with a pipeline protection structure, which comprises a speed regulator body and a pressure pipeline, the speed regulator body is provided with a pressure pipeline interface, and the pressure pipeline interface is provided with a protection structure. The protective structure comprises a shock pad and a protective cover, the protective cover is arranged on the pressure pipeline interface and comprises an inner pipe and an outer pipe, and the protective structure is additionally arranged, so that the influence of fluid impact and vibration in the pressure pipeline on precise parts in the speed regulator is effectively reduced, and the working stability and reliability of the speed regulator are improved; the protective cover is composed of an inner pipe and an outer pipe, and a damping layer is arranged between the inner pipe and the outer pipe. The inner pipe, the outer pipe and the shock pad are all made of elastic materials and can generate certain deformation when being impacted, so that impact energy is absorbed.

A Pelton turbine comprising a rotor with a horizontal axis of rotation and a supply system with at least four nozzles which surround the rotor in a uniformly distributed manner in the circumferential direction, and wherein the supply system comprises a first arm (1) and a second arm (2), and wherein the first arm (1) is connected to at least two adjacent nozzles, and wherein the second arm (2) is connected to the remaining nozzles, and wherein each arm (1, 2) comprises a strand which partially wraps around the rotor, from which at least one first pipe branches off to a first nozzle, and wherein a further nozzle forms the end of the strand, and wherein each arm (1, 2) comprises a bend (1.1, 2.1) and a connecting pipe section (1.2, 2.2), and wherein the axes of the connecting pipe sections (1.2, 2.2) are aligned parallel to the axis of rotation of the rotor, and wherein each connecting pipe section (1.2, 2.2) is connected to the turbine via the associated bend (1.1, 2.1) is connected to the corresponding strand.

The utility model provides a water purification system which comprises a waterwheel, a water purification device and a generator, the waterwheel comprises a water containing barrel, a water wheel and a water scraping plate; the water containing barrel and the water scraping plate are installed on the water wheel, and the angle between the opening direction of the water containing barrel and the rotating direction of the water wheel ranges from 0 degree to 90 degrees. The water wheel is in transmission connection with the generator through a conveyor belt; the generator is electrically connected with the water purifying device; the water scraping plate bears the impact of an external water source to drive the water wheel to rotate; the water wheel drives the generator to generate electricity through the conveyor belt, so that the generator supplies power to the water purifier; the water containing barrel contains water supplied by an external water source and conveys the water to the water purifying device along with rotation of the water wheel. And the water containing barrel is mounted, so that more water can be contained in the rotating process of the water wheel, and then natural water flow can be taken out for use more conveniently. The water scraping plate is installed to drive the generator to generate electricity, so that the generator supplies power to the water purifying device, stable and reliable electric energy supply can be provided for a user, and energy conservation and environmental protection are achieved.

This invention relates to a waterwheel-type power generation device suitable for fast-flowing river environments with elevation differences. It concentrates the water flow from the rapid current into a channel, then utilizes the impact force of the water flow to drive a waterwheel. The waterwheel is connected to a permanent magnet generator via a speed increaser to generate electricity. This waterwheel-type power generation device includes a waterwheel, a generator, and a speed increaser. It also includes: a mounting base for installing the waterwheel, with a vibration damping and energy-capturing mechanism on the mounting base; a insertion mechanism on the mounting base for securely installing the mounting base on both sides of the channel; and a pressurization mechanism on the mounting base, which drives the insertion mechanism to continuously and stably fix the mounting base to one side of the channel. This waterwheel-type power generation device, suitable for fast-flowing river environments with elevation differences, ensures the installation stability of the waterwheel in complex fast-flowing environments and improves the equipment's service life and operating efficiency.

The invention discloses a mounting and measuring device for a water distribution ring pipe of an impulse turbine, which comprises a water wheel disc axis measuring part mounted on a water wheel disc shaft, the water wheel disc shaft is arranged at the axis position of a water wheel disc, and the mounting perpendicularity of the water wheel disc shaft can be detected through the water wheel disc axis measuring part. And a plurality of water spraying branch pipes for guiding water flow to impact the water wheel disc are arranged on the inner side of the water distribution ring pipe, and the water distribution ring pipe is arranged around the water wheel disc shaft. The device is designed according to existing requirements, a measurement basis can be provided for axis installation of the water wheel disc, the water wheel disc rotates more stably, light rays matched with a water flow path are provided on the branch pipe axis measurement component, and the light rays are detected through the light ray detection disc, so that the angle installation accuracy of the water spraying branch pipe is guaranteed; a measurement foundation is provided for water turbine accessory installation, and the installation accuracy is guaranteed.

Pelton-type wheel with buckets and heels mechanically assembled to a hub, and associated embodiment. The invention relates to a Pelton-type wheel (1) with a central axis (X) and comprising: - a hub (2); - a plurality of one-piece parts (3), each consisting of at least one bucket (30) extended by a heel (31) at one of its longitudinal ends and distributed around the periphery of the hub, with each heel bearing radially against a peripheral edge of the hub; - at least one clamping flange (4), bearing against at least one of the principal faces (21) of the hub and at least one of the lateral edges of the bucket heels; - a plurality of clamping screws (5), screwed into the hub, laterally clamping the flange against said at least one principal face of the hub and said at least one of the lateral edges of the bucket heels. Figure for the abstract: Fig. 1

A turbine that includes a runner and a variable nozzle. The runner is configured to rotate about an axis of rotation. The variable nozzle is configured to produce a sheet flow when fluid passes through the variable nozzle toward the runner. The sheet flow has a circumferential length at an exit of the variable nozzle that is greater than a flow width at the exit of the variable nozzle. The flow width is adjustable. In other configurations, the sheet flow may be planar, conical, or cylindrical.

The utility model relates to be provided with main and auxiliary water car's horizontal flow water power generation system, including main water car and auxiliary water car, the main water car is equipped with main water car axle, the auxiliary water car is equipped with auxiliary water car axle, and the coaxial opposite setting of main water car axle and auxiliary water car axle is connected through the clutch type shaft coupling, and the shaft coupling device of main water car axle and the shaft coupling device of auxiliary water car axle are cylindrical, and are respectively covered in the opposite end of main water car axle and auxiliary water car axle, and the shaft coupling device of auxiliary water car axle is axially sliding fit with auxiliary water car axle and is circumferentially opposite fixed, the spring for pushing the shaft coupling device of auxiliary water car axle to the shaft coupling device of main water car axle is covered on auxiliary water car axle, and the opposite end surface of the shaft coupling device of main water car axle and the shaft coupling device of auxiliary water car axle is equipped with the meshing structure for realizing positive engagement reverse separation, can be according to operation demand, and automatically realizes the separation and combination of main and auxiliary water car axle, guarantees the power generation efficiency of power generation system and is convenient for maintenance and maintenance.

The invention discloses a rainwater power collection and utilization system, and relates to the technical field of rainwater collection equipment. The device comprises blades, a stand column, a shielding area and a power collection center shaft, a fourth quadrant area formed by rotation of the blades is set as the shielding area, and the shielding area is erected and fixed through the stand column; the blades are composed of folding pieces, a center column and turning hinges, the power collection center shaft is connected with the multiple blades, the blades are fixedly connected with the power collection center shaft through the column end of the center column, the folding pieces are connected to the two side edges of the center column through the turning hinges, a foldable folding piece structure is formed, the folding pieces are in a dustpan-shaped concave shape, and the folding pieces are connected with the power collection center shaft through the turning hinges. And a water storage groove is formed. The device can collect rainwater descending potential energy, generates electricity and does work through rainfall potential energy, reduces the electricity generation cost, benefits people, and is wide in application prospect.

The present invention relates to a fluid energy extraction device, comprising a base member, a rudder plate, a cross frame, a first plate, a second plate and an impeller; the rudder plates are arranged on both sides of the base member; the first plate and the second plate are arranged between the rudder plates to form a trumpet-shaped structure; the second plate is pivotally connected to the base member, and the first plate is pivotally connected to the cross frame; the impeller comprises a transverse axis and blades, and the blades comprise a first surface and a second surface; the impeller is transversely arranged between the two rudder plates, and its two ends respectively extend out of the corresponding rudder plates; the impeller part is located in the small mouth side of the trumpet-shaped structure, and the surfaces of the blades located therein facing the large mouth side of the trumpet-shaped structure are all the first surfaces; the device adopts a structure of two seesaws, which can increase the flow velocity of the fluid, gather its energy, and improve the efficiency of energy extraction; at the same time, when the fluid flow velocity is relatively large, the two seesaw structures will undergo pivoting motion, reducing the impact of the high-flow velocity fluid on the entire structure, thereby improving the service life and safety of the device.

The present invention discloses a water-distribution pipe, comprising an upper casing (1) and a lower casing (2), the upper casing (1) and the lower casing (2) are connected to form a pipe body (3), wherein the water-distribution pipe further comprises a runner chamber (4) and angle-adjusting rings (5); the pipe body (3) is connected to a plurality of bifurcation pipes (6), which are connected to the runner chamber (4); a first fixing cap (7) is secured at the top of the pipe body (3), and a second fixing cap (8) is secured at the bottom of the pipe body (3); the first fixing cap (7) and the second fixing cap (8) are both located at the connection of the pipe body (3) and the bifurcation pipe (6), and a guide plate (9) is embedded between the first fixing cap (7) and the second fixing cap (8); the guide plate (9) has an inclined wedge-shaped cross-section; and the runner chamber (4) is provided with transition flanges (10), and the transition flanges (10) and the runner chamber (4) are connected by the angle-adjusting rings (5). The guide plate of the present water-distribution pipe can be replaced, so as to quickly change the hydraulic flow channel, adjusting the jet angle and changing runner with different pitch diameter for the model test, which greatly improves the convenience of the model test.

The utility model provides an impulse water turbine, relates to the technical field of water conservancy and hydropower engineering, and is used for solving the problem that the single-machine capacity of the impulse water turbine in the related technology is small. The impulse turbine comprises: a housing having an inner cavity; the rotating wheel assembly is arranged in the inner cavity and comprises a main shaft and a plurality of rotating wheels arranged on the periphery of the main shaft in a sleeving mode, the main shaft is used for being connected with a generator, and the rotating wheels are arranged at intervals in the axial direction of the main shaft; the water distribution assembly comprises a plurality of water distribution pipes corresponding to the rotating wheel, the first ends of the water distribution pipes communicate with the water supply end, the second ends of the water distribution pipes are located in the inner cavity and surround the outer side of the rotating wheel, and the water distribution pipes are provided with a plurality of water outlet ends in the circumferential direction of the rotating wheel; the rotating wheel is constructed to rotate under the acting force of liquid sprayed out of the water outlet end of the water distribution pipe so as to drive the generator to generate electricity, the single-machine capacity of the impulse turbine is high, and therefore the arrangement of the hydroelectric generating set is easy.

The invention relates to a system device for lifting seawater power generation and aquaculture water by using sea wave impact force. The device comprises a seawater lifting system, a seawater storage system, an aquaculture system and a power generation system, sea waves are collected through the horn mouth, meanwhile, the characteristic that the impact force pressure intensity of the sea waves is large is utilized, the seawater position is lifted through the shrunk pipeline, and seawater enters the water storage pool. And low-water-level water in the reservoir is introduced into the culture pond for daily use according to use requirements. And the high-water-level seawater in the reservoir generates electricity through the impeller generator. The electric power used by the breeding plant is from the power generation of the system, so that the breeding cost is not additionally increased. Meanwhile, unused electric power can be accessed to a power grid to generate benefits.