Selection: precautions for use and installation of negative pressure roots blower
1、 Operation and use
We know Roots blower Most process systems are used for positive pressure and a few systems are used for negative pressure. Usually, if it is rated negative pressure, it is very normal. If the current is overloaded, it is completely abnormal. For example, when Roots blower It is absolutely impossible to completely close the valves at the air inlet and outlet when starting the machine, let alone overload operation, which is absolutely not allowed.
Some factories use blowers, so if they are used, do not stop suddenly at full load, but gradually stop after unloading. This will prevent damage to the machine. Due to its characteristics, the gas from the exhaust port is not allowed to return to the air inlet for a long time, which will affect the safety of the oil. In this case, cooling measures must be taken.
In fact, the Roots blower It is necessary to pay attention to the position of air inlet and exhaust port. Once problems are found, they should be solved immediately to avoid more problems. Therefore, it is very important to understand the problem of attention.
Sometimes, you will see the lubricant spill. You need to carefully observe the location of the splash and the amount of oil. If it is found that the oil quantity reaches the lower limit, it is necessary to Roots blower Fill with lubricant to avoid accidents. If the load is found, the load needs to be adjusted gradually until the standard is reached. It cannot be adjusted to rated load at one time. It can also be controlled by a nearby pipe or valve. Roots blower During the negative pressure operation, sometimes the temperature of the pump body is too high, which affects the normal operation.
2、 Main reasons
1. The clearance between rotor and rotor and between rotor and pump housing is too small and air pressure is too large. The shrinkage rate increases, and the heat dissipation of the pump shell is poor or the cooling water is less and the temperature is high.
2. The outer surface of the rotor rubs against the inner wall of the pump shell.
The heat of the pump body will affect the normal long-term operation, and even damage the pump, so measures must be taken to overcome it.
3. Properly adjust the clearance between the rotor and the rotor, the clearance between the rotor and the pump housing, or increase the cooling water quantity and reduce the temperature of the cooling water. Some also added cooling and cooling measures outside the pump shell.
4. Adjust the clearance between the rotor and the pump housing, or adjust the outer diameter of the rotor to a smaller point to increase the clearance.
Roots blower Negative pressure is a new type of environmental protection equipment. It has a pair of high-speed rotating soles. Gas vacuum pump. Roots blower The installation of the negative pressure system is also very important.
3、 Installation matters
1. During installation Roots blower In the negative pressure system used in, we should pay attention to the connection of the whole pipeline to see whether the reasonable degree and tightness can play a role in the whole production process through the actual site of the user. According to the specific needs of the user, it is mainly installed in the appropriate position.
2. Carry out some predictive inference on safe operation, prevent some problems in actual work, adapt to the change of working conditions, and avoid unnecessary trouble for users.
3. Perform routine commissioning on the pipeline. In case of unreasonable conditions, the whole installation design should be adjusted in time to avoid accidents, work and production under normal working conditions, and maintain stability in the production process.
4. For Roots blower The installation of the negative pressure system should be based on the service conditions, external facilities, and the convenience of future maintenance.
Conclusion: we have talked about it in previous articles Roots blower When Roots blower The internal clearance used for negative pressure is different from that for positive pressure. Therefore, when purchasing the negative pressure system, the user should explain with our manufacturer what system (positive pressure or negative pressure) is used. If there is no special description, we usually match it according to the gap data of positive pressure. If the gap is not correct, it will be used in the process of use It will affect the use effect of our users, which will cause unnecessary trouble and failure in the running system. Users must pay attention to this point.
Precautions for use and installation of Roots blower http://theoxfordjazz.com/xw/99.html
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