答：在行业中，将罗茨风机压力过高的情况称之为“超压”!通常在使用罗茨鼓风机气力输送的过程中，如果管道由于某些原因被阻塞并且阻力增加，则很可能导致罗茨风机超压。如果超压太大，将产生气体。逆流和此时的止回阀可以确保罗茨风机的安全。 当气体反转时，单向阀关闭以防止气体倒流。此时，罗茨风机将由于超压过载而增加电压和电流，同时，泄压阀将开始放气，压力将保持在相对平衡的边界。

　　万一出现超压，罗茨风机会有一系列症状。风量不足、振动加大，产生噪音，出现异响等，会无法工作。对于这些情况，我们应及时找出原因，以免发生事故。

　　罗茨风机的止回阀需要与其他零件配合才能发挥良好的作用，特别是当气体换向时，罗茨风机的止回阀处于半关闭状态，此时罗茨的其他零件 鼓风机，如：泄压阀，排气阀等，这种逆流情况存在时间很长，这些部件可以起到良好的协同作用。

　　罗茨风机通过转子轴端的同步齿轮使两个转子保持啮合。转子的每个凹曲面部分和气缸的内壁形成工作空间，并且在转子旋转期间将气体从吸气口带走，罗茨风机移至排气口附近 由于高压气体返回，因此与排气口连通，这时罗茨风机的工作容积中的压力突然升高，然后将气体输送到排气通道。两个转子不相互接触，并且通过紧密控制的间隙将它们密封，因此排出的气体不会被润滑油污染。下面是我们整理总结的罗茨风机超压的原因与解决方法分享给大家：

　　1.罗茨鼓风机的压力取决于它受到的阻力。只要在可接受的压力范围内，它就能正常工作。例如，如果你给一个水深2米的水池充气，吹出的空气压力是20千帕。在3米深的池塘里，它变成30千帕。只要电机的输出功率能达到负载。

　　2.如果压力表指示的压力大于应输出的压力，可能是管道堵塞、曝气头堵塞等造成的。

　　罗茨鼓风机引起电机电流大的原因：

　　1.与规定压力相比，压差较大，即背压或入口压力大且高。

　　2.与设备要求流量相比，风机流量太大，压力增加。

　　3.入口过滤器堵塞，出口管道堵塞。

　　4.转动部件接触和摩擦(卡住。

　　解决风机压力过大的方法：

　　1.将压力降低至规定值。

　　2.将过量气体排入大气或降低鼓风机速度。

　　3.清除障碍。

　　4.立即停车，检查原因。

　　5.将油位调整到正确的位置。

　　6.检查皮带张力，并用大直径皮带轮更换。

　　以上便是罗茨风机厂家上海瑞柘环保分享的关于【罗茨风机压力过高】的解决方法!该内容可适用于我厂生产销售的三叶罗茨鼓风机与密集式罗茨鼓风机!其他厂家的罗茨风机可以参考借鉴，但不保证解决方法适用!

　　In industry, the condition of excessive pressure of Roots blower is called "overpressure"! Often during pneumatic conveying with a Roots blower, overpressure of the Roots blower is likely to occur if the piping is blocked for some reason and resistance increases. If the overpressure is too high, gas will be produced. Backflow and check valves at this point ensure the safety of the Paulz blower. When the gas reverses, the check valve closes to prevent the gas from backflowing. At this point, the Roots blower will increase voltage and current due to overpressure overload, while the relief valve will begin to bleed and the pressure will remain at a relatively balanced boundary.

　　In the event of overpressure, the Roots blower will have a series of symptoms. Insufficient air volume, increased vibration, noise, abnormal noise, etc., will not work. In these cases, we should find out the cause in time to avoid accidents.

　　Check valves of Roots blowers need to work well with other parts, especially when gas is reversed, the check valves of Roots blowers are in a semi-closed state. At this time, other parts of Roots blowers, such as pressure relief valves, exhaust valves, etc., have a long history of countercurrent, and these parts can play a good synergy.

　　The Roots blower compressor keeps the two rotors engaged by means of synchronous gears at the rotor shaft end. Each concave-curved part of the rotor forms a working space with the inner wall of the cylinder and takes the gas away from the suction port during the rotor rotation. The Roots blower moves to the vicinity of the exhaust port and is connected to the exhaust port because of the return of high-pressure gas. At this point, the pressure in the working volume of the Roots blower suddenly rises and the gas is then conveyed to the exhaust passage. The two rotors are not in contact and are sealed by tightly controlled clearances so that the exhaust gas is not contaminated by lubricating oil. Following is the reason and solution for overpressure of Roots blower summarized by us to share with you:

　　1.The pressure of a Roots blower depends on the resistance it receives. It will work as long as it is within acceptable pressure range. For example, if you inflate a pool 2 meters deep, the air pressure will be 20 kPa. In a pond 3 meters deep, it becomes 30 kPa. As long as the output power of the motor reaches the load.

　　2. If the pressure indicated by the pressure gauge is higher than the pressure to be output, it may be caused by pipe blockage, aerator blockage, etc.

　　Reasons for high motor current caused by Roots blower:

　　1. Compared with the specified pressure, the pressure difference is large, i.e. the back pressure or inlet pressure is large and high.

　　2. Compared with the flow required by the equipment, the flow rate of the fan is too large and the pressure increases.

　　3.The inlet filter is blocked and the outlet pipeline is blocked.

　　4.Turning parts contact and friction (stuck).

　　Solutions to excessive fan pressure:

　　1. Reduce pressure to specified value.

　　2. Drain excess gas into the atmosphere or reduce the speed of the blower.

　　3. Remove barriers.

　　4.Stop immediately and check the cause.

　　5.Adjust the oil level to the correct position.

　　6.Check belt tension and replace with large diameter pulley.

　　This is the solution for Roots blower manufacturer Shanghai Ruizhi Environmental Protection Sharing about [Roots blower pressure is too high]! This content can be applied to roots blower with three lobes and dense roots blower for production and sale in our plant! Roots fans from other manufacturers can be used for reference, but the solution is not guaranteed to be applicable!