Selection of gas, oil, and coolant:

在天然氣發電機組發動機使用前，應根據具體使用的環境和條件，選用適當規格的天然氣、機油和冷卻液。選用恰當與否，對天然氣發電機組的發動機的性能和使用壽命有很大的影響.

Before using the natural gas generator set engine, appropriate specifications of natural gas, oil, and coolant should be selected based on the specific environment and conditions of use. The appropriate selection has a significant impact on the performance and service life of the natural gas generator set engine

一.天然氣發電機組使用燃氣的要求：

1、 Requirements for the use of gas in natural gas generator sets:

燃氣發動機的燃料以天然氣為主，也可以使用油田伴生氣、液化石油氣、沼氣等可燃性氣體。所用的氣體應通過干燥脫水，達到無游離水、原油和輕質油，其低熱值不應低于31.4mj/m3,總硫含量不大于480mg/m3,硫化氫含量不大于20mg/m3.此外天然氣輸送壓力在0.08－0.30MAP范圍內.

The fuel for gas engines is mainly natural gas, and combustible gases such as oilfield associated gas, liquefied petroleum gas, and biogas can also be used. The gas used should be dehydrated through drying to achieve no free water, crude oil, and light oil. Its low calorific value should not be less than 31.4mj/m3, total sulfur content should not exceed 480mg/m3, and hydrogen sulfide content should not exceed 20mg/m3. In addition, the natural gas delivery pressure should be within the range of 0.08-0.30MAP

二.天然氣發電機組所用的機油

2、 Oil used in natural gas generator sets

機油是用來潤滑天然氣發動機的運動件并對這些運動件起到冷卻散熱、帶走雜質和防止銹的作用。其品質的好壞除對燃氣發動機的性能和使用壽命有影響外，對機油的使用期限有一定的影響。為此，應根據天然氣發電機組燃氣發動機的使用環境溫度來選適當的機油。天然氣發動機盡可能使用燃氣發動機專用機油15W40CD或15W40CC等.

Oil is used to lubricate the moving parts of natural gas engines and plays a role in cooling and dissipating heat, removing impurities, and preventing rust. The quality not only affects the performance and service life of gas engines, but also has a certain impact on the service life of oil. Therefore, the appropriate oil should be selected based on the ambient temperature of the natural gas generator set gas engine. Natural gas engines should use gas engine specific oils such as 15W40CD or 15W40CC as much as possible

三.天然氣發電機組使用冷卻液：

3、 Cooling liquid used in natural gas generator sets:

用于冷卻系統的直接冷卻發動機的冷卻液通常使用清潔的淡水，雨水或經澄清的河水為宜.當天然氣發動機在低于0度的環境條件使用時，應嚴防冷卻液凍結，致使零件凍裂。可根據溫度來配用適當凝點的防凍液或在起動前加注熱水，但停車后應立即放水。

The coolant used for direct cooling of engines in the cooling system usually uses clean fresh water, rainwater, or clarified river water. When using natural gas engines in environmental conditions below 0 degrees Celsius, it should be strictly prevented from freezing the coolant, which may cause parts to freeze and crack. Suitable freezing point antifreeze can be used according to the temperature or hot water can be added before starting, but water should be drained immediately after parking.

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