Cooling and ventilating system and cooling and ventilating method for steam engine room

Abstract

The invention discloses a cooling and ventilating system, in particular to a cooling and ventilating system for a steam engine room used in high-temperature dry areas. In the invention, the cooling and ventilating system for a steam engine room can reduce the arrangement quantity of pipelines and comprises a steam engine room, a transfer layer, a steam engine unit, a direct evaporating and cooling unit and a jet flow tuyere, wherein the steam engine room consists of a building roof, side walls of the steam engine room and deoxidizing frames arranged opposite to the side walls of the steam engine room; the transfer layer is arranged aerially in the steam engine room; the steam engine unit is arranged on the transfer layer; the direct evaporating and cooling unit is arranged outside the steam engine room; the jet flow tuyere is arranged on the side walls of the steam engine unit in the steam engine room; the direct evaporating and cooling unit is communicated into the steam engine room by an air conveying pipeline and is connected with the jet flow tuyere; the jet flow tuyere has sufficient gunshot; therefore, the generated cold air can cover the whole space of the steam engine room; by adopting the jet flow tuyere, pipelines do not need to be laid to all corners of the steam engine room; therefore, additional pipelines does not need to be used; the space is saved, and the cost is also saved.

Description

technical field [0001] The invention relates to a cooling and ventilating system, in particular to a cooling and ventilating system for a turbine house used in high-temperature and dry areas. In addition, the present invention also relates to a cooling and ventilation method, especially a cooling and ventilation method for a turbine room used in high-temperature and dry areas. Background technique [0002] At present, coal-fired power generation is still the main power generation method. To build a coal-fired power station in some dry and hot places, it is necessary to control the temperature in the turbine room. According to the "Heating Ventilation and Air Conditioning Technical Design Regulations for Thermal Power Plants" DL / T5035-2004 stipulates that when the calculated outdoor temperature of ventilation in summer is greater than or equal to 33 degrees, the temperature at the workplace shall not exceed 35 degrees. In the turbine room, the steam turbine unit, deaerator ...

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Problems solved by technology

[0004] According to the conventional mechanical air supply method, the section of the air supply duct is large, the air supply distance is small, and the turbine room has a large span and is densely covered with civil engineering, heat engine and electrical facilities, which makes it difficult to arrange the duct and easily forms a dead angle for ventilation

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