燃气发电机组启动前的准备工作至关重要，它关系到机组的顺利启动以及后续的稳定运行。以下是一份详细的启动前准备指南：

　　The preparation work before starting the gas generator set is crucial, as it is related to the smooth start-up and subsequent stable operation of the unit. Here is a detailed pre launch preparation guide:

　　一、外观与连接检查

　　1、 Appearance and connection inspection

　　零部件完整性：确保发电机组所有零部件齐全完整，无缺失或损坏。

　　Component integrity: Ensure that all components of the generator set are complete and undamaged.

　　管路连接：检查各管路连接是否正确、密封有效，特别是燃气管道、冷却水管路、机油管路等，确保无泄漏。

　　Pipeline connection: Check whether each pipeline connection is correct and sealed effectively, especially the gas pipeline, cooling water pipeline, oil pipeline, etc., to ensure no leakage.

　　底盘与部件联结：检查底盘及各部件联结是否牢固，无松动现象。

　　Chassis and component connection: Check whether the chassis and various components are firmly connected without any looseness.

　　二、进气系统检查

　　2、 Air intake system inspection

　　燃气管道检查：检查发电机组进气口前的燃气管道、燃气处理设备、安全装置联接是否可靠，无泄漏。

　　Gas pipeline inspection: Check whether the gas pipeline, gas treatment equipment, and safety device connections in front of the generator set inlet are reliable and leak free.

　　燃气阀门：在准备工作完成前，不要开启燃气阀门，以防燃气散发引发报警。但在检查阶段，需要打开燃气阀门（注意控制时间，避免长时间开启），用肥皂水等方法检查机组燃气管路应无漏气。

　　Gas valve: Do not open the gas valve until the preparation work is completed to prevent gas emission from triggering an alarm. But during the inspection phase, it is necessary to open the gas valve (pay attention to controlling the time and avoid prolonged opening), and use soap water and other methods to check that there is no air leakage in the gas pipeline of the unit.

　　三、润滑系统检查

　　3、 Lubrication system inspection

　　机油油位：检查机油油位是否在规定范围内，接近油标尺的上刻度线位置为宜。

　　Oil level: Check if the oil level is within the specified range, preferably close to the upper mark of the dipstick.

　　机油质量：检查机油质量是否符合要求，如有异常（如变质、污染等），应及时更换。

　　Oil quality: Check whether the oil quality meets the requirements. If there are any abnormalities (such as deterioration, contamination, etc.), it should be replaced in a timely manner.

　　机油滤清器：检查机油滤清器、机油泵等部件是否工作正常，确保机油能够顺畅地输送到各个润滑点。

　　Oil filter: Check whether the oil filter, oil pump and other components are working properly to ensure that the oil can be smoothly delivered to various lubrication points.

　　四、冷却系统检查

　　4、 Cooling system inspection

　　内循环冷却水：检查机组内循环冷却水是否清洁，并符合规定要求。向高架水箱内加注清洁的软化水，水面高度到合适位置。如需预热，当外界环境温度低于5摄氏度时，应将冷却液预热到20摄氏度以上。

　　Internal circulating cooling water: Check whether the internal circulating cooling water of the unit is clean and meets the specified requirements. Fill the elevated water tank with clean softened water until the water level reaches the appropriate position. If preheating is required, when the external ambient temperature is below 5 degrees Celsius, the coolant should be preheated to above 20 degrees Celsius.

　　外循环冷却水池：检查机组外循环冷却水池水位、水质。

　　External circulation cooling water tank: Check the water level and quality of the unit's external circulation cooling water tank.

　　五、电气系统检查

　　5、 Electrical system inspection

　　连接导线：检查各处连接导线是否牢固，无破损、老化或接触不良现象。

　　Connecting wires: Check whether the connecting wires at all locations are firm, without damage, aging, or poor contact.

　　绝缘电阻：测量电气回路的对地以及回路之间的绝缘电阻是否达到规定值。对于初次投入运行的机组，应使用500V兆欧表测量各电器回路对地及回路之间的冷态绝缘电阻，测量结果不低于2MΩ。

　　Insulation resistance: Measure whether the insulation resistance of an electrical circuit to ground and between circuits reaches the specified value. For units that are put into operation for the first time, a 500V megohmmeter should be used to measure the cold insulation resistance of each electrical circuit to ground and between circuits, and the measurement result should not be less than 2M Ω.

　　蓄电池接线：检查蓄电池的接线是否牢固可靠，接线时应先将蓄电池的正极接入启动继电器下接线柱上，然后再将负极接入机器底盘上，并将接线处的漆锈清除干净。

　　Battery wiring: Check if the battery wiring is secure and reliable. When wiring, first connect the positive terminal of the battery to the lower terminal of the starting relay, then connect the negative terminal to the machine chassis, and clean the paint and rust at the wiring.

　　相序检查：机组并网（并车）运行前进行相序检查，确保发电机组的相序与电网的相序相同，或机组与机组间相序一致。

　　Phase sequence check: Before the unit is connected to the grid (parallel operation), a phase sequence check should be conducted to ensure that the phase sequence of the generator set is the same as that of the power grid, or that the phase sequence between units is consistent.

　　报警系统：检查控制屏上的报警指示及声响动作是否正常。合上蓄电池开关，按动试报警按钮，各指示灯应同时闪烁，电铃或电喇叭应发出报警声响；按动消音按钮，声响应终止；按动报警解除按钮，各指示灯应熄灭。

　　Alarm system: Check whether the alarm indication and sound action on the control screen are normal. Close the battery switch and press the alarm button. All indicator lights should flash simultaneously, and the electric bell or horn should sound an alarm; Press the mute button, and the sound should stop; Press the alarm release button, and all indicator lights should turn off.

　　六、其他检查

　　6、 Other inspections

　　水雾输送系统（如适用）：检查水雾输送系统状态是否正常。

　　Water mist conveying system (if applicable): Check if the status of the water mist conveying system is normal.

　　气源压力表：检查气源压力表指数是否正常。

　　Gas source pressure gauge: Check if the index of the gas source pressure gauge is normal.

　　操作空间：确保发电机周围有足够的操作空间，以便于日常维护与紧急停机操作。

　　Operating space: Ensure sufficient operating space around the generator for daily maintenance and emergency shutdown operations.

　　场地安全：检查发电机放置的场地是否平整、无易燃易爆物品，通风良好，远离火源和热源。

　　Site safety: Check if the site where the generator is placed is flat, free of flammable and explosive materials, well ventilated, and away from fire and heat sources.

　　七、启动前准备确认

　　7、 Preparation confirmation before startup

　　确认准备工作就绪：在确认所有准备工作就绪后，方可按照操作规程启动发电机。

　　Confirm readiness of preparations: The generator can only be started according to the operating procedures after confirming that all preparations are ready.

　　熟悉操作规程：操作人员应熟悉燃气发电机组的操作规程和紧急停机流程。

　　Familiar with operating procedures: Operators should be familiar with the operating procedures and emergency shutdown procedures of gas generator sets.

　　综上所述，燃气发电机组启动前的准备工作涉及多个方面，从外观检查、进气系统、润滑系统、冷却系统、电气系统到其他相关检查等，每一步都至关重要。只有确保所有准备工作都已完成并符合要求，才能确保机组的顺利启动和稳定运行。

　　In summary, the preparation work before starting a gas generator unit involves multiple aspects, from visual inspection, intake system, lubrication system, cooling system, electrical system to other related inspections, each step is crucial. Only by ensuring that all preparatory work has been completed and meets the requirements can the smooth start-up and stable operation of the unit be guaranteed.

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