焦化气发电机组的通风设计是确保发电机正常运行、延长设备使用寿命以及保障机房环境安全的关键环节。合理的通风系统不仅能为发电机提供充足的新鲜空气，满足其燃烧和散热需求，还能有效排出废气、降低机房温度与湿度，减少噪音传播，营造良好的运行环境。

　　The ventilation design of coking gas generator set is a key link to ensure the normal operation of the generator, extend the service life of the equipment, and ensure the safety of the machine room environment. A reasonable ventilation system can not only provide sufficient fresh air for the generator to meet its combustion and heat dissipation needs, but also effectively discharge exhaust gas, reduce the temperature and humidity of the machine room, reduce noise transmission, and create a good operating environment.

　　首先，确定通风量是通风设计的基础。通风量需依据柴油发电机的功率、散热要求以及机房空间大小等因素综合计算得出。一般而言，要确保机房内每小时换气次数不少于 6 - 8 次，以保证空气的有效流通与更新。例如，对于一台 500kW 的柴油发电机，所需的通风量约为 15000 - 20000m?/h。

　　Firstly, determining the ventilation volume is the foundation of ventilation design. The ventilation volume needs to be calculated comprehensively based on factors such as the power of the diesel generator, heat dissipation requirements, and the size of the machine room space. Generally speaking, it is necessary to ensure that the air exchange rate in the computer room is not less than 6-8 times per hour to ensure effective air circulation and renewal. For example, for a 500kW diesel generator, the required ventilation rate is approximately 15000-20000m ?/h.

　　进风口与排风口的设置至关重要。进风口应位于机房的低处，且尽量远离发电机的排气口，以避免吸入废气。其面积要根据通风量和进风风速确定，一般进风风速控制在 3 - 5m/s 较为适宜。排风口则应设置在机房的高处，利于热空气和废气的排出，排风口面积按照通风量和排风风速计算，排风风速通常在 4 - 6m/s 左右。同时，进、排风口需安装防护网，防止异物进入机房。

　　The setting of air inlet and exhaust outlet is crucial. The air inlet should be located at a lower position in the computer room and as far away as possible from the exhaust outlet of the generator to avoid inhaling exhaust gas. The area should be determined based on the ventilation rate and inlet air velocity, and generally the inlet air velocity should be controlled at 3-5m/s. The exhaust outlet should be located at a high place in the computer room to facilitate the discharge of hot air and exhaust gas. The area of the exhaust outlet is calculated based on the ventilation volume and exhaust wind speed, and the exhaust wind speed is usually around 4-6m/s. At the same time, protective nets should be installed at the air inlet and outlet to prevent foreign objects from entering the computer room.

　　通风方式可采用自然通风与机械通风相结合。在环境条件允许的情况下，优先利用自然通风，如设置足够面积的通风窗、通风百叶等，借助自然风压和热压实现空气的流通。但当自然通风无法满足要求时，需配备机械通风设备，如轴流风机、离心风机等。机械通风系统应具备自动控制功能，根据机房内的温度、湿度等参数自动调节风机的启停与转速，实现智能化通风管理。

　　The ventilation method can be a combination of natural ventilation and mechanical ventilation. When environmental conditions permit, natural ventilation should be prioritized, such as setting up ventilation windows and louvers with sufficient area, and utilizing natural wind pressure and heat pressure to achieve air circulation. But when natural ventilation cannot meet the requirements, mechanical ventilation equipment such as axial flow fans, centrifugal fans, etc. need to be equipped. The mechanical ventilation system should have automatic control function, automatically adjusting the start stop and speed of the fan according to parameters such as temperature and humidity in the computer room, to achieve intelligent ventilation management.

　　此外，通风管道的设计也不容忽视。管道应布局合理、短直顺畅，减少弯头与变径，以降低通风阻力。管道材料要具备防火、防腐、耐高温等性能，如采用镀锌钢板或玻璃钢材质的风管。同时，要对通风管道做好隔热与隔音处理，减少热量散失和噪音传播。

　　In addition, the design of ventilation ducts cannot be ignored. The pipeline layout should be reasonable, short, straight and smooth, reducing bends and diameter changes to reduce ventilation resistance. Pipeline materials should have properties such as fire resistance, corrosion resistance, and high temperature resistance, such as using galvanized steel sheet or fiberglass material for air ducts. At the same time, it is necessary to provide insulation and sound insulation for ventilation ducts to reduce heat loss and noise transmission.

　　在焦化气发电机组的通风设计中，还需考虑与其他系统的协同配合，如与消防系统的联动，确保在火灾发生时能及时切断通风设备电源并关闭通风口，防止火势蔓延；与降噪系统相结合，通过合理的通风布局与消声装置的应用，降低机房噪音对周边环境的影响。

　　In the ventilation design of coking gas generator units, it is also necessary to consider coordination with other systems, such as linkage with the fire protection system, to ensure that the power supply of ventilation equipment can be cut off and ventilation openings can be closed in a timely manner in the event of a fire, in order to prevent the spread of fire; Combined with the noise reduction system, the impact of machine room noise on the surrounding environment is reduced through reasonable ventilation layout and the application of noise reduction devices.

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