Device and method for lifting seabed nutritive salt in thermal differential mode

Abstract

The invention relates to a device and method for lifting seabed nutritive salt in a thermal differential mode. The device comprises a heat collection device, a wave energy conversion device, a working medium conveying device, a deep sea heat supply device and a locating device. The wave energy conversion device is fixed on the lower portion of the heat collection device, the working medium conveying device is communicated with and fixed on the wave energy conversion device, and the deep sea heat supply device is communicated with the working medium conveying device. Through rising and falling of waves, low-temperature work medium water from the deep sea heat supply device are continuously conveyed into the heat collection device on the top through up-down reciprocating movement of a piston in a heat preservation cylinder barrel of the wave energy conversion device. Meanwhile, high-temperature work medium water heated by solar energy in the heat collection device is conveyed into the deep sea heat supply device through a heat preservation hose, and continuous circulation work is achieved. Heat energy is from solar energy, mechanical energy is from wave energy, energy is effectively saved, and the environment friendliness is achieved.

Description

technical field [0001] The invention belongs to the field of marine technical equipment, and relates to a differential thermal seabed nutrient salt lifting device and method. Background technique [0002] There are nearly 1.5 million square kilometers of rich fishing grounds in my country's offshore waters, and the marine fishery resources are very rich. However, in recent years, the ecological environment in my country's coastal waters has deteriorated sharply, and fishery resources have declined severely. The economic fish species in some coastal fishing grounds have basically failed to form fish news. Therefore, it is imminent to improve the coastal ecological environment and restore and expand marine fishery resources. Artificial upwelling technology can artificially form the vertical flow of seawater from the seabed to the sea surface. The upwelling can bring the rich nutrients from the seabed to the light-transmitting layer of the sea surface, and cooperate with carb...

AI Technical Summary

Problems solved by technology

When working, since the two chambers of the thermal insulation water bladder are almost simultaneously compressed under the action of waves, it is equivalent to simultaneously pressurizing the thermal insulation conduits at both ends of the U-shaped heating device, so it is difficult to realize the circulation of the working fluid. The flow efficiency of working medium water in the insulation pipe is not high

Moreover, the thermal insulation water bag can only work during the process of rising and compressing with the wave in a wave cycle, and cannot realize the continuous infusion process.

Therefore, the energy utilization efficiency of the device is not high

Images