及时加注光滑油。要依据阐明书中的规则，及时对水泵轴承加注光滑油，加注光滑油的数量不可太多或太少，以防轴承过早损坏。 不可梗塞溢水孔。有的水泵轴处有溢水孔，经过溢水孔可察看水泵能否漏水。假如溢水孔受堵，水泵走漏的水会进人轴承内而影响光滑，惹起轴承过早损坏。 拆装时不得猛打硬敲。检修水泵时，拆卸皮带轮和水泵内轴承等主要部件应用专用工具。装置时若猛打硬敲，易形成水泵轴承弯曲变形、水泵轴轴端螺纹滑扣或损伤。另因叶轮和泵轴配合较紧，除非必要，普通不拆卸。

Add smooth oil in time. According to the rules in the specification, the pump bearing should be filled with smooth oil in time, and the quantity of smooth oil should not be too much or too little, so as to prevent the bearing from premature damage. Do not block the overflow hole. Some water pump shaft has overflow hole, through the overflow hole, you can see whether the water pump leakage. If the overflow hole is blocked, the water leaking from the pump will enter the bearing and affect the smoothness, causing premature failure of the bearing. Do not knock hard when disassembling. When repairing the water pump, special tools should be used to remove the main parts such as the belt pulley and the inner bearing of the water pump. It is easy to form bending deformation of water pump bearing and thread sliding or damage of shaft end of water pump if the device is hard knocked. In addition, due to the impeller and pump shaft with tight, unless necessary, ordinary do not dismantle.

及时肃清水泵内的水垢。水泵内水垢积聚过多，会使水泵泵水才能削弱，同时水垢还会腐蚀水泵内各部件，易使水泵过早损坏。

Remove the scale in the water pump in time. Excessive water scale accumulation in the water pump will weaken the water pump. At the same time, the scale will corrode the parts in the water pump, which is easy to cause premature damage of the water pump.

正确装置。装置时，齿轮传动式水泵的齿轮应和传动齿轮严密分离，皮带传动式水泵应保证水泵轴和皮带轮的同轴度在规则的范围内，避免发起机因增加转速或负荷而招致水泵产生晃动，加剧磨损。

Correct installation. When installing, the gear of gear driven water pump should be closely separated from the transmission gear. For belt driven water pump, the coaxiality of pump shaft and pulley should be within the regular range, so as to avoid the pump shaking and aggravating wear caused by the increase of speed or load of the starter.

正确调整皮带的松紧度。风扇皮带不可调得过紧，否则会加大水泵轴承的负荷。假如是两根以上的皮带传动，要保证几根皮带的新旧、长短、松紧度相分歧，避免因各根皮带拉力不平均，使水泵受力不平衡而过早损坏。

Adjust the belt tightness correctly. Fan belt can not be adjusted too tight, otherwise it will increase the load of water pump bearing. If it is more than two belt drive, to ensure that the old and new, length, tightness of several belts are different, to avoid uneven tension of each belt, so that the water pump force imbalance and premature damage.

燃气发电机组的发电效率通常在30%-40%之间，比较常见的机型一般可以达到35%。燃气内燃机更突出的优点正是发电效率比较高，其次是设备集成度高，安装快捷，对于气体中的粉尘要求不高，基本不需要水，设备的单位千瓦造价也比较低。但是内燃机也有一些不足的地方，首先，内燃机燃烧低热值燃料时，机组出力明显下降，一台燃烧低热值8000大卡/立方米天然气燃料的500千瓦级燃气内燃发电机组，在使用低热值4000大卡/立方米的焦化煤气时，出力可能下降到350～400kW左右。

The power generation efficiency of gas-fired generator set is usually between 30% and 40%, and the more common type can reach 35%. The most prominent advantage of gas-fired internal combustion engine is high power generation efficiency, followed by high equipment integration, fast installation, low requirements for dust in gas, basically no water, and the unit kilowatt cost of the equipment is relatively low. However, the internal combustion engine also has some shortcomings. First of all, when the internal combustion engine burns low calorific value fuel, the unit output drops obviously. A 500 kW gas-fired internal combustion generator set burning 8000 kcal / m3 natural gas fuel with low calorific value may drop to 350-400kw when using coking gas with low calorific value of 4000 kcal / m3.

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