Heat pump seawater desalinating device utilizing waste heat of power plant cooling tower

Abstract

The invention discloses a heat pump seawater desalinating device utilizing waste heat of a power plant cooling tower. The heat pump seawater desalinating device comprises a seawater tank, a circulating pump, a steam condenser, a spray head, a filler and a fan; the fan, the spray head and the filler are sequentially arranged in the cooling tower from top to bottom; the seawater tank, the circulating pump, the steam condenser and the spray head are sequentially connected; a steam turbine exhausts gas into the condenser; the circulating pump pumps seawater from the seawater tank into the steam condenser, the seawater is sprayed out from the spray head to be fragmented into small water drops, the small water drops enter the filler, the seawater evaporates, and thus the cooling effect of the cooling tower is achieved. The power plant cooling tower uses seawater evaporation cooling to replace fresh water evaporation cooling, and fresh water resources are saved. Through a heat pump technology, steam evaporated by the seawater is collected to prepare fresh water, and ocean energy sources are utilized. A heat pump evaporator absorbs heat from steam condensation, then heats heat-supplying return water at the condenser end and supplies heat to a central heat-supplying pipe network, or heats power plant circulating water, the water supplying temperature is increased, the waste heat is fully recycled, and the energy sources are saved.

Description

technical field [0001] The invention belongs to the technical field of marine energy utilization and energy saving, and in particular relates to a heat pump seawater desalination device for waste heat from a cooling tower of a science and engineering power plant. Background technique [0002] As we all know, my country's coastal areas are in the leading position in economic and social development from south to north. However, economic development also puts great pressure on the environment and resources, among which water resources have a profound impact on all aspects. According to statistics, about 70% to 80% of urban water is industrial water, and 70% to 80% of industrial water is industrial cooling water. Facing the shortage of fresh water resources in coastal cities, it is necessary to develop and utilize seawater instead of fresh water as industrial water, especially As industrial cooling water, it is one of the important ways to solve the crisis of fresh water resourc...

AI Technical Summary

Problems solved by technology

[0003] The ocean is the source of life, and it is also a precious water resource. As a major player in need of cooling, power plants are of great significance to the development and utilization of seawater

Images