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168results about "Impulse engines" patented technology

Impact water turbine, water bucket and mortise and tenon connection structure for water bucket and hub

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.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES CO LTD

Impact turbine, bucket and pin distribution parameter determination method

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.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES CO LTD

Impulse water turbine, erosion-resistant bucket, and method of erosion-resistant structure arrangement

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.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES CO LTD

Assembly type impact rotating wheel

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.
Owner:TIBET DATANG ZHALA HYDROPOWER DEV CO LTD +1

Bucket root configuration design method based on negative Gaussian curved surface

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.
Owner:DONGFANG ELECTRIC MACHINERY

Pelton turbine with at least four nozzles and a feed system and method for modernising an existing hydroelectric power plant

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.
Owner:VOITH PATENT GMBH

Water purification system

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.
Owner:NINGBO FOTILE KITCHEN WARE CO LTD

A waterwheel-type power generation device suitable for fast-flowing river environments with drops in elevation.

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.
Owner:PHOENIX LAONONG NEW ENERGY TECH CO LTD

Installation and measurement device for water distribution ring pipe of impulse turbine

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.
Owner:CHINA INTERNATIONAL WATER & ELECTRIC CORPORATION +1

Pelton type wheel, with buckets with heels mechanically assembled to a hub, Associated manufacturing process.

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
Owner:MATALP

Horizontal flow water power generation system with main and auxiliary water wheels

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.
Owner:JIANGXI GONGBU MACHINERY

Rainwater power collection and utilization system

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.
Owner:王希锋

Hydrodynamic recovery system

A hydropower recycle system, relating to the technical field of hydroelectric power generation, includes a turbine device, a power generating device and a rooftop water tank (2). The turbine device and the power generating device are provided at the top of the rooftop water tank (2). A water inlet (21) is provided at the top of the rooftop water tank (2). The turbine device includes a turbine housing (3), a turbine (5), a high-pressure nozzle (6) and a turbine rotating shaft (4). The turbine housing (3) is provided above the water inlet (21). A water outlet is provided at the bottom of the turbine housing (3). The turbine (5) is provided inside the turbine housing (3). The turbine rotating shaft (4) passes through the turbine housing (3). Apart of the turbine rotating shaft (4) located in the turbine housing (3) is connected to the turbine (5), and one end of the turbine rotating shaft (4) extending out of the turbine housing (3) is transmittingly connected to an input shaft of the power generating device. The high-pressure nozzle (6) is fixedly disposed on a sidewall of the turbine housing (3). The hydropower recycle system has the advantages of small commitment resources, short installation and debugging time, and slight influence on the environment. The energy which is originally necessary to be used is recycled, the recycled energy is supplied to the buildings for use or is sold to the power grid, thereby providing green energy and reducing carbon emission.
Owner:GREEN VIGOR LTD

Marine turbines that harness kinetic and potential energy

The present invention includes an apparatus for harnessing the kinetic energy of ocean currents, seas, or estuaries by transferring the kinetic energy of the water to a turbine that drives a generator. The apparatus consists of several parts, mainly including: A) an ejector pump with an intake and a mixing chamber, and B) a cross-flow turbine M1 (revolving door type, two blades).
Owner:POSEIDON INTELLECTUALP SAS

Bucket of a pelton turbine

A bucket of a Pelton turbine with an outlet edge curved at least in segments. To achieve a particularly high efficiency, it is provided according to the invention that the outlet edge forms a rear hump in a side view, wherein a center of curvature of the hump is positioned below the outlet edge in a side view and a peak of the hump is located closer to the cup base than to the bucket face.
Owner:ANDRITZ HYDRO GMBH

Impact water turbine capable of generating power bidirectionally

The invention discloses an impulse turbine capable of generating power bidirectionally, and relates to the technical field of water turbine.The impulse turbine comprises a water turbine main shaft, a rotating wheel disc and an annular water conveying pipe, the water turbine main shaft is fixedly inserted into the rotating wheel disc, and a plurality of connecting rods are arranged on the outer wall of the rotating wheel disc along the circumference; one end of the connecting rod is inserted into the rotating wheel disc and is fixedly provided with a gear, and the other end of the connecting rod is fixedly provided with a steerable water bucket. When the water turbine needs to be braked or steered, the steering system can be put into use, other equipment does not need to be disassembled or added, and therefore the device is more convenient to use; when the water turbine is shut down or load shedding occurs due to accidents, the steerable water bucket and the steerable nozzle are controlled by hydraulic control equipment to conduct steering operation, and meanwhile, a water inlet valve on the water spraying pipe is opened, so that water flow reversely impacts the steerable water bucket through the steerable nozzle, and then braking torque opposite to the original rotating direction is provided; therefore, rapid braking of the impulse turbine is achieved.
Owner:POWERCHINA HUADONG ENG CORP LTD

Heating system

The present application relates to the technical field of heating, and discloses a heating system, comprising an outdoor heat exchange device and an indoor heat exchange device. The outdoor heat exchange device comprises a plate heat exchanger; the indoor heat exchange device comprises a housing, a heat exchange tube, heat exchange fans, and a storage battery; the heat exchange tube, the heat exchange fans, and the storage battery are all mounted in the housing; the storage battery is electrically connected to the heat exchange fans and supplies power to the heat exchange fans; a first circulation pipeline is communicated between a liquid outlet of the heat exchange tube and a cold side inlet of the plate heat exchanger; a water pump used for conveying water in the heat exchange tube to the plate heat exchanger is connected in series on the first circulation pipeline; a second circulation pipeline is communicated between a cold side outlet of the plate heat exchanger and a liquid inlet of the heat exchange tube; a turbine generator is connected in series on the second circulation pipeline; and the turbine generator is electrically connected to the storage battery, and the generated electricity is stored in the storage battery. The present application has the effects of reducing the need for indoor wiring and power strips, and shortening the construction period of the heating system.
Owner:TAYBO (SHANGHAI) ENVIRONMENTAL TECH CO LTD

Closed type hydroelectric power generation system

The invention discloses a closed type hydroelectric power generation system, and relates to the technical field of hydroelectric power generation. A closed type hydroelectric power generation system comprises a plurality of sets of power generation devices, a first water storage tank, a hydraulic ram, an axial flow pump and a second water storage tank, the multiple sets of power generation devices are arranged in the hydroelectric power generation system and connected through pipelines, the tail ends of the sets of power generation devices are connected with the first water storage tank through pipelines, and the water storage tank is connected with the water storage tank through pipelines. The reservoir I is connected with the hydraulic ram and the axial flow pump through pipelines, the hydraulic ram is connected to the starting end of the complete power generation device through a pipeline, and the axial flow pump is connected with the reservoir II through a pipeline. Water flow is pressurized through the hydraulic ram and then conveyed to the starting end of the complete set of power generation device to form circulating power, the axial flow pump conveys redundant water to the second water storage pool to be stored and adjusted, efficient utilization of water resources and continuous power generation are achieved, and good environmental adaptability and popularization value are achieved.
Owner:郑亮

Lever effect V-blade type semilunar horizontal water turbine

The invention discloses a lever effect V-blade type semilunar horizontal water turbine, and belongs to the field of hydroelectric generation. Comprising a half-moon-shaped shell, a base tail water tank, a V-blade type lever rotating wheel, a nozzle, a power generation ball and a main shaft, and the V-blade type lever rotating wheel comprises a rotating wheel disc with a lever effect and a plurality of V-shaped blades. Compared with the prior art, the shape of the half-moon-shaped shell is matched with the rotating wheel disc, the half-moon-shaped shell is used for installing the nozzle, the distance between the nozzle and the rotating wheel disc can be shortened, and water flow loss of the nozzle is reduced; the V-shaped blade is provided with a V-shaped opening, so that water flow sprayed by the nozzle can be received, the utilization rate of the water flow can be improved, airflow friction resistance generated in high-speed rotation can be reduced by utilizing the V-shaped tip, and therefore, energy loss can be reduced, and the energy utilization rate can be improved; when the V-shaped blades rotate to the bottom of the rotating wheel disc, water can be discharged, the load bearing of the rotating wheel disc is reduced, the rotating wheel disc has the lever effect, and the power generation efficiency of the water turbine can be improved.
Owner:SHENZHEN JINHONG NEW ENERGY TECHNOLOGY CO LTD

Self-power-generation anti-blocking sewer well lid

The utility model relates to a self-power-generation anti-blocking sewer well lid which comprises a first box body, a second box body, a support assembly, a frame assembly and a water wheel device. The first box body is movably connected with a plurality of controllable closed lotus leaf pieces, and the lower end face of the first box body is connected with the support assembly and used for supporting the controllable closed lotus leaf pieces; the lower end of the first box body is connected with the frame assembly, and the frame assembly is connected into the second box body. The water wheel device is connected to the frame assembly. Preferably, the support assembly comprises a plurality of rolling rotation limiting blocks, two second limiting blocks, two S-shaped connecting pieces, a first optical axis and a second optical axis. The utility model aims to provide the self-generating anti-blocking sewer well lid for overcoming the existing defects, and mechanical energy brought by accumulated water can be converted into electric energy.
Owner:DONGGUAN FANYUAN ELECTRONIC TECH CO LTD

Recirculating Hydro-Pneumatic Impulse Turbine

The recirculation hydro-pneumatic impulse turbine includes a collector assembly having a central draft tube extending below the collector assembly, a collector plate having a generally horizontal upper surface with the draft tube configured to be in fluid communication with the upper surface, and a series of drive cups circumferentially disposed about the upper surface, a drive assembly around the central draft tube having a fluid inlet at its lower end in fluid communication with the lower end of the draft tube and a plurality of outlet nozzles at its upper end configured to be tangentially disposed, and a central air tube having an upper air inlet and a lower air distribution manifold having at least one venturi outlet capable of entraining air into the fluid to assist in moving the fluid upward from the lower end of the drive assembly to the outlet nozzle. In use, a fluid jet formed at the outlet nozzle engages the drive cup to create relative rotation between the outlet nozzle and the drive cup about a vertical axis such that the rotation can provide useful work, and fluid then flows from the drive cup, across the upper surface of the collector plate, down the draft tube and into the fluid inlet of the drive assembly where the fluid, along with air, is recirculated back to the outlet nozzle.
Owner:GRAVITY ENERGY PTY LTD

Water flow energy conversion unit

To provide a water flow energy conversion unit that exhibits high energy conversion efficiency in water. [Solution] A water flow energy conversion unit X that converts the energy of a water flow into rotational motion, comprising a water turbine body A installed underwater and a rectifying unit C that controls the water flow, the water turbine body A having an output shaft A1 extending substantially horizontally, a water receiving section A2 installed on the output shaft A1, and a support section A3 that supports the output shaft A1 so that it can rotate around its central axis, the output shaft A1 being connected to a generator that is driven to rotate by its rotational movement, the water receiving section A2 having a water receiving body A21 that receives the water flow, the rectifying unit C having a front rectifying section C1 arranged in front of the water turbine body A when viewed from the axial direction, the front rectifying section C1 having an upper surface configured as an inclined surface that gradually slopes upward toward the water turbine body A as it approaches the water turbine body A.
Owner:生田 裕二

SHELL OF A PELTON TURBINE

ActiveDE502023003170D1Impulse engines
Owner:ANDRITZ HYDRO GMBH

Centrifugal force engine

The invention provides a centrifugal force engine, which relates to the technical field of engines, and comprises a machine shell, an electric water pump, a bottom reservoir, a generator, a bottom bearing, a top bearing, a centrifugal wheel, a central shaft bracket, a central shaft, an intelligent electric cabinet, a shaft central pipe, a water path, a trapezoidal water outlet groove, an excircle water outlet, an outer water outlet and an external water outlet. The device has the advantages that centrifugal force generated by high-speed rotation of the centrifugal wheel enables liquid to flow in an accelerated mode, recoil thrust is formed to push the centrifugal wheel to rotate, output energy is larger than input energy, limitation of the traditional energy conservation law is broken through, and the intelligent electric control box can achieve accurate control and real-time monitoring. The engine has the advantages of high efficiency, energy conservation, sustainable operation and high intelligent degree.
Owner:龙求天

Horizontal multi-stage high-pressure water turbine type centrifugal pump

The horizontal multi-stage high-pressure water turbine type centrifugal pump comprises a water turbine pump body, the water turbine pump body comprises a pump shell with an inner cavity, a spiral flow guide assembly is installed on the side wall, close to a water guide mechanism, of the pump shell, and the spiral flow guide assembly comprises a flow guide half shell, a spiral flow guide piece and a flow guide assembly. The spiral flow guide assembly is arranged on the side wall of the pump shell, disordered water flow which is reflected to the inner wall of the pump shell after impacting an impeller rotor is collected through a flow guide hopper of the flow guide assembly and guided into the spiral cavity, the spiral flow guide assembly is arranged on the side wall of the pump shell, and therefore the flow guide efficiency is improved. Accelerated spiral flow formed by the spiral flow deflectors is used for strengthening kinetic energy of fluid, then the bottom end flow guiding assembly directionally impacts the bottom of the impeller rotor, so that the problem of circumferential torque fluctuation caused by reflected water flow is effectively solved, secondary reflection is reduced through the wall attachment effect of a spiral cavity, and meanwhile kinetic energy of the reflected water flow is converted into driving force of secondary impact.
Owner:DALIAN SOURCE PUMPS

Impact water turbine and water bucket

The invention relates to the technical field of hydroelectric generation, in particular to an impulse turbine and a water bucket. Comprising an upstream face layer made of a metal material; the downstream surface layer is made of a carbon fiber composite material; wherein the upstream face layer and the downstream face layer are connected to form a double-bowl-shaped water bucket structure which is symmetrical along the water diversion blade. By combining the high wear resistance of the metal material with the high specific strength and high specific stiffness of the carbon fiber composite material, the runner bucket blade which is higher in strength, higher in abrasion resistance and lighter in weight is formed. 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.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES CO LTD

Water bucket of impulse turbine

The water bucket comprises a water bucket body, one end of the water bucket body is an installation end used for being connected with a water turbine hub, and the water bucket is characterized in that a plurality of fish scale imitation bodies in a protruding fish scale shape are distributed on the inner surface of the water facing side of the water bucket body in an overlapped mode, and the whole upper surface of each fish scale imitation body is in an arched arc shape; one end of the fish scale imitation body forms a head part with higher thickness, the other end of the fish scale imitation body is gradually reduced in thickness and extends to form a tail part, the fish scale imitation body is bilaterally symmetrically arranged in the width direction, and the whole head part is of a fillet structure in the horizontal direction; the fish scale imitation bodies are arranged in rows, and the head parts of the fish scale imitation bodies on the rear side cover and are overlapped on the tail parts of the fish scale imitation bodies on the front side, so that the fish scale imitation bodies are sequentially and continuously overlapped to form a structure which is integrally distributed on the inner surface of the upstream side of the water bucket body. According to the method, the abrasion resistance of the water bucket of the impact water turbine under the silt-laden condition can be better improved, the adaptability of the water bucket to the multi-grading and complex silt condition is improved, and the service life of the water bucket is prolonged.
Owner:CHONGQING UNIV

Sand discharging structure and method for water distribution ring pipe of impulse turbine

The invention discloses a desilting structure and a desilting method for a water distribution ring pipe of an impulse turbine. The sand discharging opening of the arc cutting structure is formed in the outer wall of the pipeline between the adjacent nozzles, meanwhile, the silt monitor is arranged at the inlet of the water distribution ring pipe and used for detecting the concentration of silt at the inlet, when it is detected that the silt reaches the maximum concentration allowed to pass through, a valve opening signal is sent out, the working valve located at the sand discharging opening is opened, and part of silt is discharged. The sand concentration in the pipe can be effectively reduced, the abrasion degree of parts is reduced, and the service life of the parts can be prolonged.
Owner:HOHAI UNIV

A cold machine for converting water hammer energy and water internal energy into mechanical energy

The present application relates to the field of new energy technology, and discloses a cold engine for converting water hammer energy and internal energy of water into mechanical energy, comprising a sealed shell, a central liquid outlet mechanism, a rotating jet flow guide pipe mechanism, a ring-shaped reverse turbine and an external heat energy recovery mechanism; the central liquid outlet mechanism comprises a central water collector and a check valve assembly, the rotating jet flow guide pipe mechanism comprises a driving assembly and a plurality of groups of curved imitated twisted antelope horn-shaped guide pipes, and the ring-shaped reverse turbine is rotationally connected in the sealed shell; one end of the external heat energy recovery mechanism is communicated with the inner wall of the shell periphery through a liquid outlet pipe by a water pump, and the other end is connected with a hot water return system, which is communicated with the bottom of the inner cavity of the sealed shell; the liquid outlet pipe is communicated with the waist inner wall of the shell periphery. The present application can realize the conversion from fluid kinetic energy of water to mechanical energy, and the energy source of the engine is cold energy generated by the small hole of the nozzle, which replaces heat energy from air to maintain rotation and reduce air temperature.
Owner:鄂雨松

Water flow energy impact power generation device

The invention discloses a water flow energy impact power generation device. Belongs to the technical field of water-flow power generation. According to the technical key points, the system comprises the ground, a C-shaped water channel is arranged on the ground, a plurality of water wheel power generation mechanisms distributed at equal intervals are arranged on the C-shaped water channel, mounting floors and a high-altitude water supply mechanism are fixedly mounted on the ground, and water storage tanks are fixedly connected to the inner tops of all the mounting floors. According to the device, a circulating water flow system with the C-shaped water channel and the multiple installation floors combined is constructed, multi-stage echelon utilization of water flow energy is achieved, the water wheel power generation mechanism on the C-shaped water channel can directly generate power through water flow impact, energy is further recycled through the water conveying power generation unit in the high-altitude water conveying and inter-floor water conveying process, and the energy utilization efficiency is improved. Meanwhile, the buoyancy power generation unit in the water storage tank can convert potential energy of water level change into electric energy, the conversion efficiency of water flow energy is greatly improved through multi-link cooperation, limitation of natural water flow conditions is avoided, and the application range is wider.
Owner:NINGBO RUIJI TECHNOLOGY R&D CO LTD