The ventilation system of an air-cooled generator room can be summarized as four systems

平时通风系统

Regular ventilation system

柴油发电机组组房通风换气用，就是一般10～15次换气次数的通风量，可仅设排风机 如果给排水有气体灭火，这套系统还要承担灭火完毕后的排风系统。

The ventilation and ventilation system for diesel generator set rooms is usually 10-15 ventilation times, and can only be equipped with exhaust fans. If there is gas in the water supply and drainage system to extinguish the fire, this system also needs to bear the exhaust system after the fire is extinguished.

发电机组发电机工艺进排风系统

Generator process air intake and exhaust system for generator sets

电机本身有个很大的排风管，这个是发电机自带的，我们配合提一个风井就可以，同时设计进风系统补充排风量和发电机组燃烧空气量(电气提资)，设送风机，此系统风量很大。

The motor itself has a large exhaust duct, which comes with the generator itself. We can cooperate with the installation of an air shaft, and at the same time, design an air intake system to supplement the exhaust air volume and the combustion air volume of the generator set (electrical supply). Install a supply fan, which has a large air volume in this system.

这一套系统也有设计是预留风井而已，与发电机报价无关。

This system is also designed as a reserved air shaft and is not related to the generator quotation.

柴油发电机组发电机排废气系统

Diesel generator generator exhaust system

牵涉到环保问题，通常称之为“排烟管”，发电机自带，电气的标准图集上还设专门给这个系统设一个井，实际上工程设计建筑很难有这么多空地。多半是由发电机排风井排出室外 ，还有不明白的问题可以直接联系发电机厂家。

It involves environmental protection issues, commonly referred to as "smoke exhaust pipes". The generator comes with it, and the electrical standard atlas also has a dedicated well for this system. In fact, it is difficult for engineering design buildings to have so much open space. Most likely, it is discharged from the outdoor through the generator exhaust shaft. If you have any questions, you can directly contact the generator manufacturer.

储油间排风系统

Oil storage room exhaust system

可以与1合用，此时通往储油间的支管上设止回阀防火阀;也可以单独设系统，采用防爆通风机。

It can be used in conjunction with 1, and a check valve and fire damper are installed on the branch pipe leading to the oil storage room; Alternatively, a separate system can be installed using explosion-proof ventilation fans.

二柴油发电机组房通风包括两部分，平时通风和工作通风。

The ventilation of the diesel generator set room includes two parts: regular ventilation and working ventilation.

平时通风：风冷和水冷发电机的机房平时通风取6次换气次数，储油间通风换气次数不小于3次。对于采用气体灭火系统的机房，在火灾后，本通风系统负责排除室内废气，但不是事故通风。

Daily ventilation: The machine rooms of air-cooled and water-cooled generators should have 6 ventilation changes, and the ventilation changes in the oil storage room should not be less than 3 times. For computer rooms using gas fire extinguishing systems, this ventilation system is responsible for removing indoor exhaust gases after a fire, but it is not accident ventilation.

工作通风：柴油发电机组须考虑工作耗氧所需空气量;风冷发电机冷却风量大，一般采用自然进风，柴油发动机自带风扇压力排放，但250kw柴油发电机组自带风机压头只有150Pa左右，在井道阻力大时需增加风机克服井道阻力，一般进风井阻力大，加进风机;排风井阻力大，则加排风机。

Working ventilation: The diesel generator set must consider the amount of air required for working oxygen consumption; The air-cooled generator has a large cooling air volume and generally adopts natural air intake. The diesel engine comes with a fan for pressure discharge, but the 250kw diesel generator set comes with a fan pressure head of only about 150Pa. When the shaft resistance is high, a fan needs to be added to overcome the shaft resistance. Generally, when the shaft resistance is high, an inlet fan needs to be added; If the resistance of the exhaust shaft is high, an exhaust fan should be added.

柴油发电机组房采用气体灭火，进排风通道上应设电磁阀，在250kw柴油发电机组房发生火灾气体灭火启动时，连锁关闭这些阀门，以保证灭火效果。

The diesel generator room adopts gas fire extinguishing, and electromagnetic valves should be installed on the inlet and exhaust channels. When a fire occurs in the 250kw diesel generator room and gas fire extinguishing is activated, these valves should be interlocked and closed to ensure the fire extinguishing effect.

柴油发电机组排烟为有压排烟，烟气温度高，气流速度高，烟气需高空排放，烟管应考虑保温隔热，同时需设减震吊架。

The smoke exhaust of diesel generator sets is pressurized smoke exhaust, with high smoke temperature and airflow speed. The smoke needs to be discharged from high altitude, and the smoke pipe should be considered for thermal insulation, and shock absorption hangers should be installed.

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