Floating pendulum type ocean manual downwelling device utilizing wave energy and control method

Abstract

The invention discloses a floating pendulum type ocean manual downwelling device utilizing wave energy and a control method. The device is based on the lever principle, by converting the wave force borne by a floating floater into a pressure head, surface layer oxygen-enriched water can be injected into bottom layer water, the oxygen shortage condition is relieved, and the water quality is improved. The device has a wave self-adaptive control system, the self mechanical structure can be changed according to the magnitude of the wave force, and therefore the optimal downwelling flow can be generated, and the wave energy can be efficiently utilized. In addition, in the environment that the wave condition is severe, the control system makes the whole device in the standby state, the overload protection effect is achieved, and the device is made to have good survival capacity. Because a device power system is mainly composed of mechanical components, the device is convenient to maintain and install. In conclusion, large-scale engineering application of the device in home and abroad oxygen-shortage sea areas rich in wave energy resource is hopeful, and the condition of large-area water oxygen shortage is relieved.

Description

technical field [0001] The invention relates to the field of alleviating the anoxic state of the bottom water body in the coastal waters, in particular to a floating pendulum type marine artificial downwelling device and a control method using wave energy. Background technique [0002] Dissolved Oxygen (DO) is an important indicator of water environment health. Studies have shown that water hypoxia (Hypoxia, DO<2mg / L) will eventually lead to varying degrees of discomfort and even death in organisms such as fish and shrimp. In addition, the lack of oxygen in the water body will change the chemical cycle process of the water body, leading to the occurrence of events such as intensified eutrophication of the water body and the release of harmful heavy metal ions, destroying the original ecological balance of the water area and deteriorating the water quality conditions. [0003] With the increasing frequency of human production activities on land, factors such as water eutr...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the shortcomings of current artificial downwelling devices, such as high energy consumption, difficult maintenance, and weak survivability, the present invention proposes a floating pendulum marine artificial downwelling device using wave energy and a control method. The wave force on the float is converted into a pressure head, which can inject the oxygen-enriched water on the surface into the bottom water body, relieve the anoxic condition and improve the water quality

Images