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Inclined type water turbine with adjustable jetting angles and multiple nozzles

One-type turbine and multi-nozzle technology, applied in impact engine, hydroelectric power generation, mechanical equipment, etc., can solve the problems of reducing turbine efficiency, unstable water resources, unstable turbine operation, etc., to improve flow and output, energy efficiency Maximize and improve the effect of the range of use

Inactive Publication Date: 2012-07-25
XIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese patent ZL200910308180.9 discloses a multi-nozzle slanting impact water turbine. The multi-nozzle slanting impact water turbine disclosed in this patent can greatly increase the specific speed of a single nozzle water turbine. Interference between the jet flow and the water flow inside the bucket blades is easy to occur, and the interference between the jet flow and the water flow inside the bucket blades is different for different nozzle numbers, which reduces the efficiency of the turbine
In addition, the water resources in the common environment of oblique water turbines are unstable. The water turbines need to adapt to the operation of different numbers of nozzles according to the timely water volume. At present, simply opening and closing different numbers of nozzles cannot maximize the efficiency of water resources. At the same time, the operation of the water turbine is also unstable. , the energy efficiency cannot be maximized

Method used

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  • Inclined type water turbine with adjustable jetting angles and multiple nozzles
  • Inclined type water turbine with adjustable jetting angles and multiple nozzles
  • Inclined type water turbine with adjustable jetting angles and multiple nozzles

Examples

Experimental program
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Effect test

Embodiment 1

[0035] In this example, the multi-nozzle slanting water turbine with adjustable jet angle includes a water diversion pipe 1, a plurality of nozzles 3 connected with the water diversion pipe 1 and a runner 4, and the nozzles 3 are rotatable. The rotation angle b of the nozzle 3 is 5.5 degrees to 6.5 degrees, and the included angle a between the water jet direction F of the nozzle 3 and the horizontal plane 4a of the runner 4 is 17 degrees to 25 degrees.

[0036] Usually, 2 to 6 nozzles 3 can be arranged, and they are evenly and symmetrically arranged above the circular plane of the runner 4. When the turbine is running, the angle a between the water jet direction F of each nozzle 3 and the horizontal plane 4a of the runner 4 is the same , and rotate at the same time or synchronously; according to the size of the running water, different numbers of nozzles 3 can be opened. When opening, the symmetrical position of the nozzles 3 should be opened as much as possible. The angle a b...

Embodiment 2

[0044] Same as Embodiment 1, the multi-nozzle slanting impact water turbine with adjustable jet angle includes a water diversion pipe 1, a plurality of nozzles 3 communicated with the water diversion pipe 1 and a runner 4, and the nozzles 3 are rotatable. The rotation angle b of the nozzle 3 is 5.5 degrees to 6.5 degrees, and the included angle a between the water jet direction F of the nozzle 3 and the horizontal plane 4a of the runner 4 is 17 degrees to 25 degrees.

[0045] This example adopts the flange rotation connection structure, and the rotation connection 5 is set at the connection position between the water diversion pipe 1 and the nozzle 3. Usually, the runner 4 is connected with the motor 2 in the design of a water turbine. In this example, the connection 5 between the water diversion pipe 1 and the nozzle 3 is arranged at On the road, and through the flange connection, the flange connection has the usual sealing and other structures, in order to realize the rotatio...

Embodiment 3

[0048] Same as Embodiment 2, the multi-nozzle slanting impact water turbine with adjustable jet angle includes a water diversion pipe 1, a plurality of nozzles 3 communicated with the water diversion pipe 1 and a runner 4, and the nozzles 3 are rotatable. The rotation angle b of the nozzle 3 is 5.5 degrees to 6.5 degrees, and the included angle a between the water jet direction F of the nozzle 3 and the horizontal plane 4a of the runner 4 is 17 degrees to 25 degrees.

[0049] This example adopts the embedded sliding sleeve rotating connection structure, and the rotating connection 5 is set at the connection position between the water diversion pipe 1 and the nozzle 3. Usually, the runner 4 is connected to the motor 2 in the design of a water turbine. In this example, the nozzle 3 and the water diversion pipe 1 are extended and connected Form the same bend as in Example 2. The straight pipe at the connection end is embedded in the water diversion pipe 1 and can rotate axially ar...

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Abstract

The invention discloses an inclined type water turbine with adjustable jetting angles and multiple nozzles. The inclined type water turbine comprises a water conduit, the nozzles and a rotating wheel. The nozzles are communicated with the water conduit and are rotatable, the rotation angle of each nozzle ranges from 5.5 degrees to 6.5 degrees, an included angle between a formed water jetting direction of each nozzle and the rotating wheel ranges from 17 degrees to 25 degrees, and joints of the water conduit and the nozzles are rotatable and can be flange rotational connection structures or embedded sliding sleeve rotational connection structures and the like. Internal flowing of a hopper blade and running of each single nozzle are assuredly consistent by means of changing the adjustable jetting angles according to the quantity of flow and the number of the running nozzles, mutual interference of jet stream and internal flow is prevented, hydraulic loss is minimized, hydraulic efficiency of the water turbine is improved, axial force of the water turbine can be reduced, the jetting angles of the nozzles and the number of the running nozzles jointly match with each other, the jetting angles of the nozzles are adjustable, efficiency of water resources is brought into play to the greatest extent, the water turbine runs more stably, and energy efficiency is maximized.

Description

technical field [0001] The invention belongs to the field of design and manufacture of oblique impact water turbines, in particular to the design and manufacture of multi-nozzles of oblique impact water turbines, and particularly relates to a nozzle setting structure. Background technique [0002] The impact turbine uses nozzles to convert the pressure energy of water flow into velocity energy, and the potential energy of water flow into high-speed kinetic energy at the outlet of the nozzle. The whole working process of the water flow from leaving the nozzle, entering the runner until leaving the runner is not in a closed system, but in a casing filled with air, forming a free jet. After the jet comes into contact with the bucket blade, it starts to exchange energy with the working surface of the bucket blade around the flow. [0003] Pelton turbines can be divided into two types according to the flow direction of the water flow: the cutting type (also known as the water bu...

Claims

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Application Information

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IPC IPC(8): F03B1/00F03B1/04
CPCY02E10/223Y02E10/20
Inventor 宋文武符杰
Owner XIHUA UNIV
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