The method of cooling the circulating water in the pond-cooler

 

(57) Abstract:

The invention relates to energy and can be used in the defence supply systems thermal and nuclear power plants with cooling pond. An object of the invention is to reduce the temperature of water to be abstracted to theoretically possible value and a significant increase in the efficiency of evaporation of the cooling pond. The method of cooling the circulating water in the pond-cooler includes dumping warm water in the cooling pond, cooling and water intake, more efficient use of evaporation of the cooling pond by raising the bottom layers of the water supply part of the discharged warm water in the bottom part in the area of water intake. The swirling flow of the discharged warm water is through an expanding nozzle with an inner curved spiral guides installed on the pipeline at an angle of 45oto current traffic flow and placed at the level of the water surface in the pond. Water is drawn selective intake. 2 Il.

The invention relates to the field of energy and can be used in circulating water systems of thermal and atomic is glaciale (see Farforovsky B. S., Pyatov J. N. Design of cooling systems for industrial water supply. - L. - M.: 1960, S. 34 - 38, Fig. 11 - 12), including the discharge of thermal water in the cooling pond, the cooling and intake chilled water.

The disadvantage of this method is inefficient use of evaporation pond-cooler due to the fall in temperature difference between water cooled and the cooling air occurring during the mixing of two streams, namely cold bottom and warm water discharged.

There is a method of cooling the circulating water in the pond-cooler (see and.with. N 800308 MCI E 03 B 1/00, bull. N 4, 1981), including the discharge of warm water in the cooling pond, the cooling and intake chilled water and more efficient use of evaporation pond-kladitis due to the rise of the near-bottom layers of the water supply part of the discharged warm water in the bottom part in the area of water intake.

The disadvantage of this method is incomplete effect heat transfer between the mirror surface of the cooling pond and cold atmospheric air due to the presence of only translational motion of the cooled water.

Technical task predlagaemaya the efficiency of evaporation of the cooling pond by the swirl flow of the discharged warm water through an expanding nozzle with an inner curved spiral guides installed on the pipeline at an angle of 45oto transit flows at their current level of water surface in the pond and the water is drawn selective intake of cold water.

The technical result is achieved by a method of cooling the circulating water in the pond-cooler, including the discharge of warm water in the cooling pond, the cooling and intake cooling water, more efficient use of evaporation of the cooling pond by raising the natural layers of the water supply part of the discharged warm water in the bottom part in the area of the water intake includes a swirling flow of the main part of the discharged warm water through an expanding nozzle with an inner curved spiral guides installed on the pipeline at an angle of 45oto transit flow in the direction of its movement and is placed at the level of the water surface in the pond and the water is drawn selective intake of cold water.

In Fig. 1 depicts the implementation of the proposed method, and Fig. 2 - scan the inner surface of the expanding nozzle with curved spiral guides.

Warm water through the pipeline 1 is the area of the spillway prima warm water flows through the pipe 4 into the bottom part in the catchment area. When this occurs, the mixing of warm and cold water. Reset the main part of the flow of cooling water is carried through the pipeline 5 on which you installed the expanding nozzle 6 with the inner curved spiral guides 7, oriented at 45oto transit flow 8 in their current, is connected by a flexible insert 9 to the pipe 5. The withdrawal of water from the cooling pond 1 is carried out by means of selective withdrawal 10 cold water.

The proposed method of cooling the circulating water in the cooling pond is implemented as follows.

Warm water through the pipeline 1 is the area of the sump of the cooling pond 2, the cooled water from the zone of the catchment is drained by a pipe 3 at fossil or nuclear power plants. Part of the discharged warm water is fed via line 4 into the bottom part in the catchment area. When this occurs, the mixing of warm and cold water. As a result, the density of water decreases and bottom water rises to the surface. The main part of the stream of water is discharged through the pipeline 5 on which you installed the expanding nozzle 6 with the inner curved spiral guides 7, oriented at an angle of 45oto the course of transit creates favorable conditions for the interaction of waves with warm discharged water and cold water in the water coming from the river, and the expanding waves of the warm water discharged by providing resistance to the flow of transit jets intensively in a large volume mixed, creating standing waves, effectively probing with cold ambient air. Flexible insert 9 extending between the nozzles 6 and pipe 5 allows the first constantly be on the crest of a wave and generates waves in the boundary layer, which also strengthens the process of heat exchange. The fluctuation quantity of the discharged warm water over time due to the irregularity of water creates conditions for the formation of the amplification of waves and interference in the expanding nozzles and boron colder water in the area of the fence, and the elevated location and their design solution is solved using the criterion of Richardson.

Creating a swirl flow of warm water and waves on the surface of the cooling pond and the respective orientation of the expanding nozzles increase the surface area of water in the pond, the surface contact between warm water and cold air, ensuring efficient heat transfer between them, allows, under certain conditions, to bring the lower temperature chilled water to theoretically possible, and selective abstraction allows to take the most cold body of water.

The originality of the proposed method of cooling the circulating water in the pond-cooler is a combination of the effect of twist and selectivity to improve the efficiency of the use of mirror pond-cooler for cooling and reducing the intake temperature of the cooling pond water.

The method of cooling the circulating water in the pond-cooler, including the discharge of warm water in the cooling pond, cooling and water intake, more efficient use of evaporation labor-cooler by lifting the bottom layers of the water supply part is emnd warm water occurs through an expanding nozzle with an inner curved spiral guides installed on the pipeline at an angle of 45oto the course of transit, placed at the level of the water surface in the pond and the water is drawn selective intake.

 

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