答：罗茨风机会在管道内形成负压吗？是的，能够在入口造成负压现象的罗茨鼓风机多为压力过高或超负载运转造成的！高压罗茨风机出现负压时，应针对其原因分别采取措施进行处理。首先应适当减少气量，以免高压风机机管道入口抽成负压，造成恶性事故，然后查明原因，分别处理，待处理正常后再加负荷。将气量减少至低程度，必然时紧急停车，待煤气系统处理正常，气框有上升趋势时，交换系统应争取时间开车。下面罗列一下罗茨鼓风机入口产生负压的原因，帮助各位老板解决并预防该问题的存在与产生！

　　罗茨风机入口产生负压的原因

　　1.气框出口水封积水过高，气体被水封住;

　　2.气框出口阀未打开或阀芯脱落;

　　3.气框出口管严重积灰并落下，使管道被堵塞;

　　4.冬天气温突然降低，气框出口管内冷凝水结冰;

　　5.由于煤气炉造气不佳或设备故障如安全挡板不开，无风入炉;

　　6.气框进口水封积水或气体倒流等引起气框压力急剧下降。

此外，罗茨风机超载也是入口产生负压的原因之一。因此，建议各位购买罗茨风机时根据自己的需求，购买相应功率与压力的罗茨鼓风机！下面简单总结一下超载的原因分享给大家！

　　可能导致高压罗茨风机电动机超载原因

　　一.系统压力变化所导致的电动机超载

　　进口过滤器堵塞或者其它原因导致的设备压力增高，从而在出口压力不变情况下增高升压，对设备形成负压导致电动机超载。

　　高压罗茨风机设备的出口系统压力有所增加导致电动机超载运行，这种情况需要对设备出风口系统进行检查后彻底清除清理。

　　二.设备零部件不正常所引起的电动机超载

　　1.设备齿轮出现损坏;

　　2.设备轴承损坏，需要对其进行更换;

　　3.设备静动件出现摩擦情况增加电动机的负载，需要对其设备间隙进行调整改善这种情况。

以上关于【如何预防罗茨鼓风机入口负压】的内容，由罗茨鼓风机厂家上海瑞柘环保集团编写！

　　A: Roots blowers that can cause negative pressure at the inlet are mostly caused by excessive pressure or overload operation! When the high-pressure roots blower has negative pressure, measures should be taken to deal with the causes. First of all, the air volume should be appropriately reduced to avoid negative pressure at the inlet of the high-pressure fan pipe, resulting in a malignant accident, and then find out the causes, deal with them separately, and add load after the treatment is normal. Reduce the gas volume to a low level, and when necessary, emergency shutdown. When the gas system is handled normally and the gas frame has an upward trend, the exchange system should strive for time to start. The following is a list of the causes of negative pressure at the inlet of Roots blower to help bosses solve and prevent the existence and occurrence of this problem!

　　Causes of negative pressure at Roots blower inlet

　　1. The water in the water seal at the outlet of the gas frame is too high, and the gas is sealed by water;

　　2. The air frame outlet valve is not opened or the valve core falls off;

　　3. The outlet pipe of the air frame is seriously dusty and falls, causing the pipe to be blocked;

　　4. The temperature suddenly drops in winter, and the condensate in the outlet pipe of the air frame freezes;

　　5. Due to poor gas production of the gas furnace or equipment failure, if the safety baffle does not open, there is no air entering the furnace;

　　6. Water accumulation or gas backflow at the inlet of the gas frame cause the gas frame pressure to drop sharply.

　　In addition, the overload of Roots blower is also one of the reasons for the negative pressure at the inlet. Therefore, it is recommended that you buy roots blowers with corresponding power and pressure according to your own needs! The following is a brief summary of the reasons for overloading to share with you!

　　Possible causes of overload of high voltage roots blower motor

　　I Motor overload caused by system pressure change

　　The pressure of the equipment increases due to the blockage of the inlet filter or other reasons, which increases the pressure rise when the outlet pressure remains unchanged, forming a negative pressure on the equipment and causing the motor overload.

　　The pressure of the outlet system of the high-pressure roots blower equipment has increased, resulting in the overload operation of the motor. This situation needs to be thoroughly cleaned after the inspection of the air outlet system of the equipment.

　　II Motor overload caused by abnormal equipment parts

　　1. The equipment gear is damaged;

　　2. The equipment bearing is damaged and needs to be replaced;

　　3. The friction of the static and moving parts of the equipment increases the load of the motor, and the equipment clearance needs to be adjusted to improve this situation.

　　The above content about [how to prevent the negative pressure at the inlet of Roots blower] was originally created by Shanghai Ruizhe environmental protection group, the manufacturer of Roots blower!