Temperature reducing device mounted on circulating water pipeline of thermal power plant
A technology of circulating water pipe and circulating water, applied in the direction of water shower cooler, direct contact heat exchanger, heat exchanger type, etc., can solve the problem of cooling tower cooling efficiency reduction and other problems
Inactive Publication Date: 2018-03-30
山东东方海天能源科技有限公司
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Problems solved by technology
[0003] The invention can be used as a circulating water cooling auxiliary system to solve the problem of cooling tower cooling efficiency reduction in summer
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[0005] The heat absorbing section of the present invention is arranged in the circulating water pipeline, absorbs heat in the circulating water through the heat pipe, the medium in the heat pipe absorbs heat and becomes gaseous, and the gaseous medium enters the heat pipe row in the cooling tower. The tap water is used as cooling water, which is sprayed out through the nozzle of the spraying device to exchange heat directly with the heat pipe. After heat exchange, the tap water falls into the cooling water pool under the cooling water tower, and the cooling water in the cooling water pool flows into the circulating water pool through the pipeline. The bottom of the cooling tower is supported by a herringbone column, and the top is equipped with a hydraulically driven axial flow fan. The axial flow fan draws air in from the bottom of the cooling tower and evaporates the water vapor to keep the temperature of the cooling tap water not higher than the cooling limit temperature of t...
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The invention discloses a temperature reducing device mounted on a circulating water pipeline of a thermal power plant, belongs to the field of energy saving, and mainly solves the problem of reduction of cooling efficiency of cooling towers in high-temperature weather in summer. Partial heat of circulating water is absorbed through a heat-pipe heat exchanger and a water cooling tower, so that thetemperature of the circulating water is reduced. The temperature reducing device comprises a heat absorbing section and a cooling section; the heat absorbing section is the heat-pipe heat exchanger,is connected onto the circulating water pipeline and absorbs the heat of the circulating water through a heat-pipe evaporation section; the cooling section is arranged on the outer side of the circulating water pipeline; a heat-pipe condensation section is a heat-pipe row provided with fins in the water cooling tower; a spraying device is arranged at the upper end of the water cooling tower; running water is sprayed through spray heads to directly exchange heat with the heat-pipe row; a cooling water tank is arranged under a heat dissipation device; cooling water after heat exchange is collected and flows to a circulating water tank through the pipeline. A water-wheel axial-flow fan is mounted at an outlet of the top of the water cooling tower and is driven by the aid of kinetic energy ofcirculating water, air is forced to be pumped from the bottom of the water cooling tower to cool the heat dissipation device, and no additional electric energy is consumed due to driving by the aid ofhydraulic power.
Description
technical field [0001] The invention belongs to the field of energy saving, and in particular relates to a cooling device installed on a circulating water pipeline of a thermal power plant. Background technique [0002] The circulating water natural ventilation cooling of thermal power plants is a large thin-shell structure. For power plants built in areas with insufficient water sources, in order to save water, it is necessary to build a circulating cooling water system so that the hot water discharged from the cooler can be reused after being cooled in it. Most of the cooling structures used in large power plants are hyperbolic cooling towers. This type of cooling tower is mostly used in inland hydropower stations. Generally, more than 60% of thermal power plants emit heat to the environment, mainly taken away by cooling water. The lost heat and water droplets during long-term operation will affect the temperature and humidity of the local microclimate. When encounterin...
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Login to View More IPC IPC(8): F28C1/14
CPCF28C1/14
Inventor 黄连杰李宏春万双江
Owner 山东东方海天能源科技有限公司