译文：
齿轮泵在所有的齿轮泵中属于品质比较优秀并且有一定特殊的应用范围。但是不锈钢泵在工作的时候也会出现一些意想不到的故障，比如停机。我们就有必要来分析一下停机的主要原因，这样就可以避免以后造成不必要的机器损害。停机主要是由机械密封的失效造成的。失效的表现大都是泄漏，泄漏原因有以下几种： ①动静环密封面的泄漏，原因主要有：端面平面度，粗糙度未达到要求，或表面有划伤；端面间有颗粒物质，造成两端面不能同样运行；安装不到位，方式不正确。 ②补偿环密封圈泄漏，原因主要有：压盖变形，预紧力不均匀；安装不正确；密封圈质量不符合标准；密封圈选型不对。 齿轮泵停止运转后的要求： ①输送易结晶，易凝固，易沉淀等介质的泵，停泵后应防止堵塞，并及时用清水或其他介质冲洗泵和管道。 ②高温泵停车应按设备技术文件的规定执行，停车后应每偏20一30min盘车半圈，直到泵体温度降至50℃为止。 ③低温泵停车时，当无特殊要求时，泵内应经常充满液体；吸入阀和排出阀应保持常开状态；采用双端面机械密封的低温泵，液位控制器和泵密封腔内的密封液应保持泵的灌浆压力。 ④离心油泵停止运转后应关闭泵的人口阀门，待泵冷却后再依次关闭附属系统的阀门。排出泵内积存的液体，防止锈蚀和冻裂。

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原文：
Gear pump gear pump in all the quality is superior and there are some special applications. But the stainless steel pump, when the work will appear in a number of unexpected failures, such as downtime. We have the need to analyze the main reason for downtime, so the machine can avoid unnecessary damage to the future. Down is mainly caused by the failure of mechanical seals. Failure of performance mostly leak, leakage the following: ① leakage static sealing surface ring main reasons are: face flatness, roughness does not meet the requirements, or surface scratches; end there between the particulate matter, causing both ends of the surface can not be the same run; installed in place, and manner is incorrect. ② compensation ring seal leakage, main reasons: gland deformation, uneven preload; not properly installed; seals do not meet quality standards; ring selection right. After the pump stops running gear requirements: ① delivery crystallize, easy coagulation, sedimentation and other media easily pump, should prevent the plug after the pump stops, and in a timely manner, or other media rinse with water pumps and piping. ② heat pump equipment, technical documents parking requirements should be implemented, after stopping 20 of each side plate of a car and a half laps 30min, until the pump until the temperature dropped to 50 ℃. ③ low pump stop, when no special requirements, the pump should always be filled with liquid; suction valve and discharge valve should be kept normally open state; with double mechanical seal pumps at low temperature, liquid level controller and pump seal cavity of the sealing liquid grouting pressure pump should be maintained. ④ centrifugal pumps stop operating the pump of the population should be shut down valves, to be followed after the closure of the subsidiary pump cooling system valve. Accumulation of fluid within the pump discharge to prevent corrosion and the cracking.