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Profile motion platform driven based on ocean temperature difference energy and power generation control method thereof

A motion platform and power generation control technology, which is applied in the direction of ocean energy power generation, accumulator devices, and mechanisms for generating mechanical power, can solve problems such as high energy consumption, high oil pressure, and pipeline blockage, and achieve a simplified system structure, improved stability, and improved accuracy effects

Active Publication Date: 2020-03-24
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) Only one power generation can be performed in one profile cycle movement, resulting in low conversion efficiency of temperature difference energy
[0006] (2) Difficult to achieve fixed depth control
[0007] (3) It is impossible to rely on pressure to realize the movement of hydraulic oil from the outer oil bag to the inner oil bag and from the inner oil bag to the oil bag at the phase change, resulting in high complexity and high energy consumption of the entire hydraulic system
[0008] (4) Since the liquid storage capacity of the inner and outer oil pockets changes with the water depth, the control performance of the entire system is unstable
[0009] (5) The pipeline between the accumulator and the inner oil bag is prone to blockage, resulting in excessive pressure in this part of the oil circuit and damage to the components, and the problem that it cannot be floated and recovered smoothly
[0010] (6) It is impossible to rely on pressure to realize the movement of hydraulic oil from the outer oil bag to the inner oil bag and from the inner oil bag to the oil bag at the phase change, resulting in high complexity and high energy consumption of the entire hydraulic system

Method used

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  • Profile motion platform driven based on ocean temperature difference energy and power generation control method thereof
  • Profile motion platform driven based on ocean temperature difference energy and power generation control method thereof
  • Profile motion platform driven based on ocean temperature difference energy and power generation control method thereof

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Effect test

Embodiment 1

[0040] see Figure 1 to Figure 4 The profile motion platform based on the ocean temperature difference energy of the present invention includes a sealed cavity 100, a buoyancy control circuit, a power generation unit, a power storage unit and a control unit, and most of the structure of the buoyancy control circuit and the power generation unit, power storage unit and control unit are all arranged In the sealed cavity; the buoyancy control circuit includes a liquid storage pump 1 driven by the ocean temperature difference, an accumulator 21, and an external hydraulic cylinder 9 whose drainage volume changes with the amount of stored hydraulic oil, which are sequentially connected into a circuit structure through an oil circuit. And the inner hydraulic cylinder 4 placed in the sealed cavity. In this embodiment, the external hydraulic cylinder 9 and the liquid storage pump 1 are placed outside the sealed cavity and exposed to seawater, and other components and oil circuits are a...

Embodiment 2

[0080] As a description of Embodiment 2 of the present invention, only differences from the above-mentioned embodiments will be described below.

[0081] Such as Figure 5 As shown, in this embodiment, on the basis of the above-mentioned embodiment 1, an overflow oil passage 23d is bypassed in parallel between the accumulator 21 and the inner hydraulic cylinder 4 . The lifting control method of the cross-section motion platform also includes the step S1 of raising the fault:

[0082] The oil pressure at the oil inlet of the overflow oil passage 23d drives the relief valve 19 to conduct, and after the hydraulic oil enters the inner reservoir through the overflow oil passage 23d, the hydraulic pump 6 is controlled to force the inner reservoir to The hydraulic oil enters the external reservoir along the regulating oil circuit, and the displacement to the external reservoir increases to make the profile motion platform float up.

[0083] Specifically, when the pressure of the oi...

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Abstract

The invention relates to a profile motion platform driven based on ocean temperature difference energy and a power generation control method thereof, and belongs to the technical field of ocean equipment. The profile motion platform comprises a sealed cavity and a buoyancy control loop. The buoyancy control loop comprises a liquid storage pump, an energy storage device, an outer liquid storage device with discharge volume changing with storage quality of hydraulic oil, and an inner liquid storage device, wherein the liquid storage pump, the energy storage device, the outer liquid storage device and the inner liquid storage device are sequentially connected through oil lines to form a loop structure. A hydraulic motor for power generation, a first conduction control valve and a one-way valve only allowing the hydraulic oil to flow to the outer liquid storage device are sequentially connected to a pipeline located between the energy storage device and the outer liquid storage device in series. A short-circuit oil circuit is connected between a pipeline between the hydraulic motor and the first conduction control valve and the inner liquid storage device through a tee joint in a bypass mode; and a second conduction control valve is connected to the short-circuit oil circuit in series. Based on the added short-circuit oil circuit, the profile motion platform can generate power formultiple times in a profile cyclic motion process, so that the power generation efficiency is improved, and the profile motion platform can be widely applied to the field of ocean exploration.

Description

technical field [0001] The invention relates to ocean detection equipment, in particular to an ocean profile motion platform driven by ocean temperature difference energy and a power generation control method thereof. Background technique [0002] Ocean profile movement equipment is an important tool for people to study and detect the ocean, including guide cables, floating bodies fixed on the upper end of the guide cables and anchor blocks on the lower end, so that the guide cables are arranged roughly vertically in the ocean, And the motion equipment that can reciprocate up and down along the guiding cable; during the service process, the detection and research of the ocean can be carried out by configuring the detection device on the motion equipment. [0003] In order to prolong its service life, sports equipment is usually configured to include a power supply lithium battery and a power generation device based on ocean temperature difference energy. Ocean profiling mot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B1/02F15B1/04F15B11/08F15B13/04F03G7/05
CPCF03G7/05F15B1/024F15B1/04F15B11/08F15B13/04F15B2201/31F15B2201/411F15B2201/50Y02E10/30Y02E60/16
Inventor 陈燕虎陈炳喆杨灿军夏庆超
Owner ZHEJIANG UNIV
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