答：羅茨風機會在管道內形成負壓嗎？是的，能夠在入口造成負壓現象的羅茨鼓風機多為壓力過高或超負載運轉造成的！高壓羅茨風機出現負壓時，應針對其原因分別采取措施進行處理。首先應適當減少氣量，以免高壓風機機管道入口抽成負壓，造成惡性事故，然后查明原因，分別處理，待處理正常后再加負荷。將氣量減少至低程度，必然時緊急停車，待煤氣系統處理正常，氣框有上升趨勢時，交換系統應爭取時間開車。下面羅列一下羅茨鼓風機入口產生負壓的原因，幫助各位老板解決并預防該問題的存在與產生！

　　羅茨風機入口產生負壓的原因

　　1.氣框出口水封積水過高，氣體被水封住;

　　2.氣框出口閥未打開或閥芯脫落;

　　3.氣框出口管嚴重積灰并落下，使管道被堵塞;

　　4.冬天氣溫突然降低，氣框出口管內冷凝水結冰;

　　5.由于煤氣爐造氣不佳或設備故障如安全擋板不開，無風入爐;

　　6.氣框進口水封積水或氣體倒流等引起氣框壓力急劇下降。

此外，羅茨風機超載也是入口產生負壓的原因之一。因此，建議各位購買羅茨風機時根據自己的需求，購買相應功率與壓力的羅茨鼓風機！下面簡單總結一下超載的原因分享給大家！

　　可能導致高壓羅茨風機電動機超載原因

　　一.系統壓力變化所導致的電動機超載

　　進口過濾器堵塞或者其它原因導致的設備壓力增高，從而在出口壓力不變情況下增高升壓，對設備形成負壓導致電動機超載。

　　高壓羅茨風機設備的出口系統壓力有所增加導致電動機超載運行，這種情況需要對設備出風口系統進行檢查后徹底清除清理。

　　二.設備零部件不正常所引起的電動機超載

　　1.設備齒輪出現損壞;

　　2.設備軸承損壞，需要對其進行更換;

　　3.設備靜動件出現摩擦情況增加電動機的負載，需要對其設備間隙進行調整改善這種情況。

以上關于【如何預防羅茨鼓風機入口負壓】的內容，由羅茨鼓風機廠家上海瑞柘環保集團編寫！

　　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!