During the operation of biogas engine group, sometimes the coolant does not circulate, resulting in rapid cylinder temperature rise and sudden shutdown caused by oil temperature rise, which affects the safe use of biogas engine group.

沼氣發(fā)電機組

Biogas Generator Set 

1、沼氣發(fā)動(dòng)機組水泵故障。檢查水泵作用是否良好，如果發(fā)現水泵傳動(dòng)齒軸磨損過(guò)說(shuō)明水泵已起不到作用，需要更換后才能循環(huán)正常。

1. Biogas engine set water pump failure. Check whether the water pump works well. If it is found that the water pump transmission gear shaft is worn beyond the limit, it indicates that the water pump has failed to function and needs to be replaced before it can circulate normally.

2、沼氣發(fā)動(dòng)機組冷卻液液面過(guò)低或不符合規定。液面過(guò)低可直接造成冷卻液溫度升高使冷卻液不循環(huán)，冷卻液按規定是50%防凍液+50%軟化水+DCA4，若不符合規定將會(huì )造成管路堵塞，管壁內產(chǎn)生銹跡，使冷卻液無(wú)法正常循環(huán)。

2. The coolant level of biogas engine set is too low or does not meet the regulations. Low liquid level can directly cause the coolant temperature to rise and the coolant will not circulate. The coolant is 50% antifreeze + 50% demineralized water + dca4 as specified. If it does not meet the regulations, it will cause pipeline blockage and rust in the pipe wall, making the coolant unable to circulate normally.

3、沼氣發(fā)動(dòng)機組燃燒室內裝有節溫器，目的在于控制發(fā)動(dòng)機燃燒室溫度，節溫器必須在規定溫度完全打開(kāi)有助于小循環(huán)，如果沒(méi)有節溫器，冷卻液不能保持循環(huán)溫度，可能會(huì )產(chǎn)生低溫報警。

3. A thermostat is installed in the combustion chamber of the biogas engine set to control the temperature of the engine combustion chamber. The thermostat must be fully opened at the specified temperature to facilitate small circulation. If there is no thermostat, the coolant cannot maintain the circulation temperature, and a low temperature alarm may be generated.

4、沼氣發(fā)動(dòng)機組冷卻系統中混有空氣，造成管路不暢通，膨脹水箱上吸氣閥、排氣閥損壞也直接影響循環(huán)，這時(shí)應經(jīng)常檢查它們的壓力值是否符合規定，吸氣壓力是10kpa，排氣壓力是40kpa，除次之外排氣管路是否暢通也是影響循環(huán)的重要原因。

4. There is air mixed in the cooling system of biogas engine set, resulting in blocked pipeline. The damage of suction valve and exhaust valve on the expansion water tank also directly affects the circulation. At this time, it is necessary to often check whether their pressure values meet the regulations. The suction pressure is 10KPA and the exhaust pressure is 40kpa. In addition, whether the exhaust pipeline is unblocked is also an important reason affecting the circulation.