A water-saving and energy-saving method for changing the water replenishment mode of a closed circulating water system

Abstract

The invention discloses a water-saving and energy-saving method with changed water replenishing way for a closed cycle water system. A water tower is included, a water storage tank is arranged at the bottom of the water tower, a filling material, a sprinkling device and a water collector are sequentially arranged at the upper part of the water storage tank, a water replenishing pipeline is further included, the water replenishing pipeline is used for conveying water at the bottom of the water storage tank into the upper part of the water collector after passing through the filling material, the sprinkling device and the water collector sequentially in virtue of a water supply pump and a booster pump, and a water-drenching way is adopted for evenly spraying out water inside the water replenishing pipeline. According to the water-saving and energy-saving method provided by the invention, temperature differences between filled water of a closed cycle cooling system and evaporation gas are used, the water collector and water inflow of the water tower, and a water drenching way is adopted to carry out cold and hot exchange directly with the evaporation gas inside the water tower, the water collector and the water inflow of the water tower, so that part of evaporated gas is changed into liquid, the condensed water of the water collector can be increased, the water temperature of part of water inflow of the water tower can be lowered, and the purposes of saving water and saving energy can be achieved.

Description

technical field [0001] The invention relates to a water-saving and energy-saving method for changing the water supply mode of a closed circulating water system, which belongs to the technical field of power generation equipment. Background technique [0002] Existing power plants, taking a 600,000 kW generating set as an example, have a daily supplementary water volume of about 24,000 tons. Most of the water comes from rivers, reservoirs and comprehensive water (treated water). Some power plants use groundwater. At present, no matter which water source is used to replenish water, the water is replenished to the water storage tank of the water tower, so that this part of the water is not used effectively. According to the summer analysis, the inlet water temperature of the water tower is about 44°C, and the outlet water is about 35°C. Except for groundwater, other replenishment water sources are about 20°C, forming a large temperature difference with the evaporating gas, wat...

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Problems solved by technology

[0005] In order to solve the problem that in the existing power generation equipment, the water replenishment method adopts directly replenishing water into the storage tank, the relative temperature difference is small, and the utilization rate is poor.

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