Pavement type seawater pipeline system for ocean temperature difference energy power generation

A temperature difference energy, seawater pipe technology, applied in the direction of pipeline laying and maintenance, mechanical equipment, pipes/pipe joints/pipe fittings, etc., can solve the problems affecting the normal operation of the water intake system, the inability to fix the pipe ends of the riser, and the vortex-induced vibration of the pipe. , to achieve the effect of simple laying method, weakening mutual transmission and enhancing stability

Pending Publication Date: 2020-02-11
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This laying method is simple and time-saving, but when the riser pipe section is far away from the sea level, the gravity anchor cannot completely fix the riser pipe end, and the water intake end of the riser pipe still has a large degree of freedom
Moreover, the working environment on the seabed is extremely complex. Under the action of waves, ocean currents, and internal waves, the pipeline is prone to vortex-induced vibration and large swings, which will cause problems such as fatigue damage and shortened life of the pipeline, and affect the normal operation of the water intake system.

Method used

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  • Pavement type seawater pipeline system for ocean temperature difference energy power generation
  • Pavement type seawater pipeline system for ocean temperature difference energy power generation
  • Pavement type seawater pipeline system for ocean temperature difference energy power generation

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Embodiment

[0023] A paved seawater pipeline system for ocean thermoelectric power generation, including a standpipe 8, a filter device 4, an anchor chain 5 and a gravity anchor 6; the upper end of the standpipe communicates with a ship-type offshore thermoelectric power generation system 1 , a part of the middle section of the riser (i.e. the straight pipe section 9) is buried in the soil layer of the seabed, and a filtering device is provided at the end (water inlet) of the riser, and is connected with a gravity anchor through a anchor chain. The suspension pipe section 10 of the riser (the pipe section from the middle section of the riser buried in the soil layer of the seabed to the water inlet of the riser) is provided with a buoyancy attachment.

[0024] In the above embodiment, the riser pipe has a diameter of 1.0 m, and cold sea water at a depth of 1500 m below the sea level needs to be taken, and the distance between the sea level and the seabed is 1500 m. The embedding depth and...

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Abstract

The invention discloses a pavement type seawater pipeline system for ocean temperature difference energy power generation. The system comprises a vertical pipe, a filter device, an anchor chain and agravity anchor. A linear section buried by an ocean soil body restrains the lower end of the vertical pipe, stability of the vertical pipe section is enhanced, and large-amplitude swinging of a pipeline is avoided. Meanwhile, the linear section pipeline is prevented from being subjected to multiple load actions of ocean current, waves and inner waves. The length of a water taking port suspension section is reduced, and accordingly stability of the suspension section is improved. The vertical pipe connected with the linear pipe section and the suspension pipe section are separated, mutual transmission of vibration loads is weakened, and the function that stability of a deep-layer cold seawater low-temperature far conveying pipeline is greatly improved is achieved. The water taking pipe pavement manner is simple and convenient, and after a water taking pipeline is directly laid on a seabed, a pipe burying machine is used for burying the pipeline below the seabed by the preset depth.

Description

technical field [0001] The invention belongs to the technical field of ocean engineering, and in particular relates to a paved seawater pipeline system for generating electricity by ocean temperature difference. Background technique [0002] With the depletion of petroleum, coal and other mineral energy and the serious pollution, the development of new energy is imminent. As a clean, environmentally friendly, inexhaustible, inexhaustible renewable energy that does not occupy valuable land space, ocean energy has significant advantages. Among various marine resources, the thermal energy reserve ranks second only to wave energy. The main source of its energy is the solar radiation energy stored in the ocean. The volume is 6.0×10 7 km 3 The daily energy absorbed by seawater in tropical oceans is equivalent to 2.45×10 11 Barrel of crude oil heat. Therefore, using ocean temperature difference to generate electricity is expected to provide large-scale and stable power for so...

Claims

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Application Information

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IPC IPC(8): F16L1/16F16L1/20F16L1/24F16L1/235
CPCF16L1/16F16L1/202F16L1/207F16L1/235F16L1/24
Inventor 刘润李青欣李成凤
Owner TIANJIN UNIV
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