燃氣發電機組中修內容、流程及注意事項

　　Content, Process, and Precautions for Maintenance of Gas Generator Set
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　　1.燃氣發電機組內燃機的中修

　　1. Intermediate maintenance of internal combustion engine in gas generator set

　　內燃機中修使鄰近大修間的一次有計劃性的修理，主要是為了平衡各機件間使用期限的不同，以保證或延長大修的間隔時間。其作業范圍介于小修與大修之間，一般情況下是更換或維修1～2各主要總成，同時檢查其余總成的技術狀況，并排除故障，進行必要的緊定和調整工作。

　　Internal combustion engine maintenance refers to a planned repair between adjacent major maintenance rooms, mainly to balance the different service life of various components, in order to ensure or extend the interval between major maintenance. Its scope of work is between minor and major repairs, generally involving replacing or repairing 1-2 major assemblies, while checking the technical condition of other assemblies, troubleshooting, and performing necessary tightening and adjustment work.

　　【燃氣發電機組中修基本內容是】：更換機油和燃油濾清器的濾芯；調整噴油泵（高壓油泵）和噴油器（嘴）的噴油質量，研磨出油閥組件；拆修活塞連桿組、調速器、水泵和機油泵等；更換活塞、連桿銅套。軸瓦、氣門、氣門彈簧及鎖片等；校正發動機壓縮比等。

　　The basic content of repairing a gas generator set is to replace the oil and fuel filter elements; Adjust the fuel injection quality of the fuel injection pump (high-pressure fuel pump) and fuel injector (nozzle), and grind the fuel valve assembly; Dismantle and repair piston connecting rod assembly, governor, water pump, and oil pump, etc; Replace the piston and connecting rod copper sleeve. Bearing shells, valves, valve springs, and locking plates, etc; Correct engine compression ratio, etc.

　　2.發電機的中修流程

　　2. Medium repair process of generator

　　發電機的中修為每半年左右或其累計工作滿1000h進行。除完成發電機小修的內容外，還有如下內容：檢查滑環和電刷裝置、檢查滑環（或換向器）和電刷裝置的狀況，進行必要的情節、修正和測量。

　　The maintenance of the generator should be carried out every six months or after a total of 1000 hours of operation. In addition to completing minor repairs on the generator, there are also the following tasks: checking the slip ring and brush device, inspecting the condition of the slip ring (or commutator) and brush device, and making necessary adjustments, corrections, and measurements.

　　① 清潔工作

　　① Cleaning work

　　集電環或換向器、電刷和刷握各接觸導電表面應無油、無垢、無碳末、光潔明亮并接觸良好。

　　The contact conductive surfaces of the collector ring or commutator, brush and brush holder should be free of oil, dirt, carbon powder, smooth and bright, and have good contact.

　　【注意】：擦拭時，要用柔軟、干燥、清潔而無毛頭的布塊，可蘸少許汽油（或酒精）。尤其注意刷握內和集電環或換向器的根部（焊線頭的肩部下面）和云母槽內的清潔。

　　【 Attention 】: When wiping, use a soft, dry, clean and lint free cloth, which can be dipped in a little gasoline (or alcohol). Pay special attention to cleaning the inside of the brush holder, the root of the collector ring or commutator (under the shoulder of the welding wire head), and the mica groove.

　　② 磨光與修圓

　　② Polishing and rounding

　　集電環和換向器的外圓表面應十分光滑，一般呈暗棕色。若發現有燒傷痕跡、發黑或輕微的機械劃傷等應進行磨光。其方法是：用00號細玻璃砂紙（或金剛砂布）一條，再找一塊寬度合適的硬木板，用木板把砂紙壓緊在集電環或換向器外圓面上，然后低速轉動電機轉子，一直磨到外圓面光滑為止，最后進行認真的清潔工作。

　　The outer surface of the collector ring and commutator should be very smooth, generally dark brown in color. If burn marks, blackening, or minor mechanical scratches are found, they should be polished. The method is to use a piece of 00 grit fine glass sandpaper (or diamond cloth), then find a suitable width hardwood board, press the sandpaper onto the outer surface of the collector ring or commutator with the wooden board, and then rotate the motor rotor at low speed until the outer surface is smooth, and finally perform a thorough cleaning work.

　　【注意】：磨光操作中，注意切斷定、轉子繞組的電路，以免觸電或帶電運轉。如機電環或換向器外面面灼傷嚴重或者失圓（已不是正常的圓柱形而搖擺嚴重時），應當取出轉子，在車床上轉車外圓面——修圓，注意其表面粗糙度達到要求，修圓后的換向器還要下刻云母片，并進行清潔處理。

　　[Attention]: During the polishing operation, pay attention to cutting the circuit of the rotor winding to avoid electric shock or live operation. If the outer surface of the electromechanical ring or commutator is severely burned or out of roundness (when it is no longer a normal cylindrical shape and swings severely), the rotor should be removed and the outer surface of the commutator should be turned on a lathe - rounding, paying attention to its surface roughness to meet the requirements. After rounding, the commutator should also be engraved with mica sheets and cleaned.

　　③ 下刻云母片

　　③ Engraved mica flakes

　　換向器片間的云母片的高度，正常是應比換向片低0.5～1.2mm，否則應考慮下刻。其方法是：在現場條件下，可用細齒的手鋸鋼鋸條的一段，自制一個前端帶鉤的小刀，沿云母片溝逐漸下刻，使之高度符合要求為止。

　　The height of the mica pieces between the commutator segments should be 0.5-1.2mm lower than the commutator segments, otherwise the next engraving should be considered. The method is to use a fine toothed hand saw to cut a section of the steel saw blade under on-site conditions, and make a small knife with a hook at the front end. Gradually cut along the mica groove until the height meets the requirements.

　　【注意】：下刻時刀子要鋒利，用力要均勻、平穩，下刻完畢要進行磨光和清潔。

　　[Attention]: When engraving, the knife should be sharp, and the force should be even and steady. After engraving, it should be polished and cleaned.

　　④ 電刷裝置的調整

　　④ Adjustment of electric brush device

　　電刷是以石墨為主料壓制成型的，導電性能好且耐磨，但質脆，不耐重壓或撞擊。電刷安放在刷握內，要求能上下自由平穩的移動，左右不應有明顯的晃動現象，下端面與集電環或換向器的接觸面積不小于3/4，且光滑、平整，工作時無跳動，磨損量不應超過電刷原來總高度的2/3。否則應加以調整、研磨或更換電刷。

　　Electric brushes are mainly made of graphite and pressed into shape, with good electrical conductivity and wear resistance, but they are brittle and not resistant to heavy pressure or impact. The electric brush should be placed inside the brush holder and should be able to move freely and smoothly up and down without obvious shaking. The contact area between the lower end face and the collector ring or commutator should not be less than 3/4, and it should be smooth and flat. There should be no jumping during operation, and the wear should not exceed 2/3 of the original total height of the electric brush. Otherwise, the electric brush should be adjusted, ground or replaced.

　　【注意】：電刷和刷握等是與集電環或換向器配套的，更換時不得擅自更換牌號和規格。

　　【 Attention 】: Electric brushes and brush holders are matched with collector rings or commutators, and should not be replaced with different grades and specifications without authorization.

　　⑤ 電刷的研磨

　　⑤ Grinding of electric brushes

　　新電刷或接觸面已燒蝕的電刷，必須經過研磨，使之與集電環或換向器貼合良好才能使用。研磨接觸面的方法：用00號砂紙一條，讓有砂的一面對著電刷，把無砂的一面包著（最好粘住）集電環或換向器的外圓上，并讓電刷彈簧壓緊電刷，一電機正常運行的方向——逆時針方向轉動轉子，直到電刷下端面有80%以上與集電環外圓密切接觸為止。電刷磨好后不應調換它的安裝方向或更換刷握。正是使用前，應經過2～3min的空載磨合，然后再逐漸增加電負荷。

　　New electric brushes or brushes with burnt contact surfaces must be ground to ensure a good fit with the collector ring or commutator before use. Method for grinding the contact surface: Use a piece of 00 grit sandpaper, with the sandy side facing the electric brush. Cover (preferably stick) the non sandy side onto the outer circle of the collector ring or commutator, and press the electric brush spring tightly against the brush. Rotate the rotor counterclockwise in the direction of normal motor operation until more than 80% of the lower end face of the brush is in close contact with the outer circle of the collector ring. After the electric brush is ground, its installation direction or brush holder should not be changed. Before use, it should undergo 2-3 minutes of no-load running in, and then gradually increase the electrical load.

　　全面檢查和清洗軸承，中小型電機的轉子一般采用滾動軸承，都是用潤滑脂潤滑，通常，普通型電機采用ZGN-3鈣基潤滑脂，濕熱型電機采用ZL-3鋰基軸承脂。一般情況下，電機連續運行1500h左右時，應更換潤滑脂，以確保電機正常運行。軸承的工作好壞，直接影響電機的運行可靠性，因此應當注意維護和保養。

　　Thoroughly inspect and clean the bearings. The rotors of small and medium-sized motors generally use rolling bearings, which are lubricated with grease. Generally, ordinary motors use ZGN-3 calcium based grease, while wet heat motors use ZL-3 lithium based bearing grease. In general, when the motor runs continuously for about 1500 hours, the lubricating grease should be replaced to ensure the normal operation of the motor. The performance of bearings directly affects the reliability of motor operation, so maintenance and upkeep should be taken into account.

　　檢查電機及各繞組的絕緣 全面檢查電機及各繞組的絕緣情況，檢查個電氣及機械的連接情況。

　　Inspect the insulation of the motor and its windings comprehensively, and check the electrical and mechanical connections.

　　燃氣發電機組保養和檢修完畢后，應復查一次電機各電氣連結和機械安裝是否正確與牢固，并用干燥的壓縮空氣吹凈電機內部各處。最后，按正常的啟動和運行要求，對其進行空載和負載試驗，已確定是否完好無誤。

　　After the maintenance and repair of the gas generator set is completed, it is necessary to recheck whether the electrical connections and mechanical installation of the motor are correct and firm, and blow all parts inside the motor with dry compressed air. Finally, according to the normal start-up and operation requirements, conduct no-load and load tests on it to determine if it is intact and error free.

　　本文由 燃氣發電機組  友情奉獻.更多有關的知識請點擊  http://m.pyucoin.com/   真誠的態度.為您提供為全面的服務.更多有關的知識我們將會陸續向大家奉獻.敬請期待.

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