RU9940U1 - COOLER OF HEAT POWER PLANT - Google Patents

Abstract

1. The cooling tower of a thermal power plant, including a housing, in the lower part of which there are air ducts along the perimeter, a water supply manifold with spray devices, a water collection tank located under the housing, characterized in that the water supply manifold is installed around the perimeter of the housing, spray devices are located in front of or inside the air ducts. 2. Cooling tower of a thermal power plant, including a housing, in the lower part of which there are air ducts along the perimeter, a water supply manifold with spray devices, a water collection tank located under the housing, characterized in that the water supply collector is installed on the periphery of the housing, while the spray devices in front of or inside the air ducts and are equipped with ejector nozzles in communication with a water collection tank.

Description

TPmiPm TOW ELECTRIC GROWTH

The utility model relates to the field of heat power engineering, and specifically, to the device of fanless cooling towers, which provides water cooling up to ambient temperature and below.

Known fanless cooling tower (see application for invention N 93030181/06, IPC FS8C 1/00, publ. 27.11.95g.), Comprising a housing made of concrete blocks. An irrigation is located in tiers in the building. In the lower part there is an inclined pallet and wind partitions, preventing through blowing through the wind of the germination space.

The closest analogue to the technical essence is a cooling tower (see RF patent N S04707S, IPC FSBC 1/00, publ. 27.10. 95 g.) Containing a casing, in part of which there are air inlets around the perimeter for intake of atmospheric air, a water supply manifold with spraying devices whether, an irrigator belt, a capacity for collecting water.

The disadvantage of this device is the presence of an irrigation belt, which creates a large hydraulic resistance, which leads to a decrease and even complete absence of the oncoming air flow, as well as drops of water falling from the irrigator eject air and entrain, which also reduces the oncoming air flow. These shortcomings lead to

(options) .-

reduce the efficiency of the cooling tower n e.ololadivan} water. In addition, during operation, the material of the sprinkler is gradually destroyed. The crumbs drive in the pipes of the condenser heat exchanger, which affects the heat transfer, therefore, this device of the cooling tower is not reliable enough in operation.

The proposed technical solution is aimed at eliminating these shortcomings, i.e. increasing the cooling tower cooling efficiency, increasing the reliability and durability of its operation, reducing its cost.

The technical result according to the first embodiment is achieved by the fact that in the cooling tower of a thermal power plant, including a housing, at the bottom of which there are air-duct windows, a water supply manifold with open devices and a water collection tank located under the housing, a water supply collector is installed around the perimeter the housing while spraying devices are located in front of or inside the air ducts.

The technical result according to the second embodiment is achieved by the fact that in the cooling tower of a thermal power plant including a building, in the lower part of which there are air ducts along its perimeter, a water supply co-collector with spray devices, a water collection tank located under the body, a water supply collector is installed along the perch of the case, while spraying devices are located in front of or inside the air ducts and are equipped with ejector nozzles in communication with the water collection tank.

In FIG. 1 shows a longitudinal section of a cooling tower according to the first embodiment.

In FIG. 2 represents a spray device with an ejector according to the second embodiment.

The cooling tower of a thermal power plant includes a housing 1. At the bottom of which there are air ducts S for suctioning atmospheric air, a supply manifold 5, for example, representing, for example, a pipeline with a diameter of 500 mm and spraying devices 4 evenly mounted, HanpiMep. in increments of 0.6 ... m. The collector 3 is installed around the perimeter of the housing 1. R. Spray devices 4 are located in front of or inside the air ducts E and are nozzles with a given spray angle. B N1 the upper part of the tower under the housing 1 has a tank for collecting water 5.

According to the second variant, the spraying devices 4 are equipped with ejector nozzles 6 in communication with a water collecting tank 5.

The cooling tower of a thermal power plant (according to the first embodiment) operates as follows. Circulating water is supplied to the intake manifold 3 and through the spraying devices 4 located in front of or inside the air ducts g, it is sprayed at a predetermined angle inside the housing 1. The jets of water flowing out of the spraying devices 4 actively entrain the ejected air through the air ducts S. Inside the housing 1, a droplet fluid flow is formed with an average diameter of 1.1 meters of droplets of 2 ... 5 mm and an outlet velocity of 8 ... IE m / s from nozzles. The dispersed stream actively carries away air. The presence of an active current of atmospheric air and a large surface area of water in dispersed jets contribute to the rapid cooling of the droplet. The vapor-air mixture is actively removed from

cooling towers, due to the high salajagi of the grazir, tan: how there are no irrigators inside it that could create hydraulic resistance. Spray devices 4 located in front of or inside the air duct windows 2 also do not create hydraulic resistance inside the tower.

According to the second variant, the spraying devices 4 are equipped with injector nozzles b in communication with the water collecting tank 5. Ejector N. The nozzles 6 eject water from the tank 5 and again supply it through the nozzles of the spraying devices 4. Water passes through the cooling zone 2 ... 3 times and h. it is cooled to a temperature below the temperature of the atmospheric air if the relative humidity of the atmospheric air is less than 100%. The use of ejector nozzles 6 is advisable if the circulating ne: zos provides a water pressure of at least 3 atm.

Thus, the proposed technical solution provides high efficiency for water storage, which directly affects the increase in the efficiency of the steam turbines of thermal power plants. In addition, the reliability of the tower is ensured, its installation is simplified and the cost is reduced.

Claims (2)

1. The cooling tower of a thermal power plant, including a housing, in the lower part of which there are air ducts along the perimeter, a water supply manifold with spray devices, a water collection tank located under the housing, characterized in that the water supply manifold is installed around the perimeter of the housing, spray devices are located in front of or inside the air ducts. 2. Cooling tower of a thermal power plant, including a housing, in the lower part of which there are air ducts along the perimeter, a water supply manifold with spray devices, a water collection tank located under the housing, characterized in that the water supply collector is installed on the periphery of the housing, while spraying the devices are located in front of or inside the air duct windows and are equipped with ejector nozzles in communication with a water collection tank.