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A tidal current energy flow field data collection device and its application method

A technology of data collection and application methods, applied in measurement devices, fluid dynamics tests, instruments, etc., can solve problems such as restricting development benefits, lack of flow field data, and inseparability

Inactive Publication Date: 2016-05-18
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical applications, in order to obtain economies of scale, tidal current energy generators are often arranged in groups, and the influence of factors such as geographical location, tidal current energy density, water depth conditions, layout methods, and development costs need to be considered during the layout process; different layout situations It will have different impacts on the hydrodynamics, scouring and silting of the surrounding sea area, and at the same time these will restrict the benefits of development. The proper solution of these problems is inseparable from the correct understanding of the law of water flow around tidal energy generators
However, there are few human activities and engineering operations in the strong tidal sea area, and there is a lack of complete and sufficient flow field data. From the perspective of protecting the marine environment and improving development benefits, there is an urgent need for a tidal current energy flow field data collection device.

Method used

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  • A tidal current energy flow field data collection device and its application method
  • A tidal current energy flow field data collection device and its application method
  • A tidal current energy flow field data collection device and its application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0015] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown, an experimental model of a tidal current generator with adjustable extraction rate includes a sink 1, a torque sensor 2, a porous disc 3, a flow rate measuring instrument 4, a first supporting cross bar 10, a first supporting vertical bar 11, and a second The second support crossbar 12, the second support vertical rod 13, the first support crossbar 10 is fixed on the sink 1, the first support crossbar 10 is provided with a torque sensor 2, and one end of the first support vertical rod 11 is fixedly connected with the torque sensor 2 , The other end is fixedly connected to the porous disc 3; the porous disc 3 includes a first disc 5, a second disc 6 and a movable disc 8 placed between the two. The movable disc 8 is provided with a cylindrical convex Block 9, the cylindrical bump 9 matches the guide rail 7 provided on one side of the first disc 5; the corresponding positions on the first disc 5 and ...

Embodiment

[0017] Select the water area with development potential, collect and measure the hydrological characteristics of the water area, including: velocity v, flow direction, water level h, density ρ, etc. For flow velocity, generally speaking, water areas greater than 1.0m / s have development value. The minimum flow velocity range of existing tidal current power generation devices is 0.7m / s-1.0m / s, and the rated flow velocity range is 1.5m / s-3.5m. / s, density ρ is 1000kg / m 3 . At this stage, due to technical and economic conditions, tidal current energy equipment is installed in waters relatively close to the coast. Generally, the water depth is 30m-40m. Under such water depths, people expect the rotor diameter φ to be 10m-15m. In the example, the water depth h is selected as 40m. At present, the mainstream rated power of tidal current power generation devices is at the MW level, such as RTT from LunarEnergy in the UK and CleanerCurrentTurbine from CleanerCurrentPower in Canada. In ...

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Abstract

The invention discloses a device for collecting flow field data of tidal current energy and an application method of the device for collecting the flow field data of the tidal current energy. A first supporting cross rod is fixed on a water channel. A torque sensor is arranged on the first supporting cross rod. One end of a first supporting vertical rod is fixedly connected with the torque sensor. The other end of the first supporting vertical rod is fixedly connected with a multi-hole disc. The multi-hole disc comprises a first disc, a second disc and movable wafers arranged between the first disc and the second disc. Cylindrical bumps are arranged on the movable wafers. The cylindrical bumps are matched with guide rails arranged on one side of the first disc. Round holes are formed in the corresponding positions of the first disc and the second disc. The first disc is connected with the second disc through a bolt. A second supporting cross rod is fixed on the water channel. One end of a second supporting vertical rod is fixedly connected with the second supporting cross rod. The other end of the second supporting vertical rod is fixedly connected with a flow-velocity measuring instrument. The device can adjust extraction efficiency to research electricity generation of the tidal current energy, and is convenient to use in the field.

Description

Technical field [0001] The invention relates to a tidal current energy flow field data collection device, in particular to a tidal current energy flow field data collection device with an adjustable extraction rate. Background technique [0002] From the perspective of power generation principle, the arrangement of the generator device will inevitably have a certain obstructive effect on the movement of water flow, especially in the downstream there will be an area with a lower flow rate than free flow. From this it seems that tidal energy cannot be exploited indefinitely, and excessive development will have a great impact on the hydrodynamic environment of the entire sea area. The changes in the hydrodynamic environment will change the sedimentary environment, biological habitat, and ecological environment of the surrounding seas, and will also have a great impact on the functions of the surrounding ocean. In practical applications, in order to obtain economies of scale, tidal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M10/00
Inventor 张亚超姚炎明万猛张业放袁金雄
Owner ZHEJIANG UNIV