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Detailed Introduction to the Fundamentals of Vacuum Pumps in Shandong
Category: Industry News
Time: 2022-12-12
Summary:
Detailed Introduction to the Fundamentals of Vacuum Pumps in Shandong
1. Permissible steam capacity of Shandong vacuum pumps:
The allowable steam capacity of a pump is expressed in kg/h. It refers to the total mass flow rate of steam that the pump—or, more specifically, the gas-boosting pump—can remove when operating sequentially under standard, abnormal conditions.
2. The pumping speed of Shandong vacuum pumps:
The unit of the pumping speed for a centrifugal pump is m³/s or l/s. It refers to the ratio between the gas pressure flowing out from the test hood when the pump is equipped with a standard test hood and operating according to technical specifications, and the differential gas pressure measured at a specific location within the test hood. This is commonly referred to as the pumping speed of a centrifugal pump.
3. The ultimate gas pressure of the Shandong vacuum pump:
The unit of the ultimate pressure for a centrifugal pump is Pa. Typically, this refers to the pump operating under standard test conditions—with standard test covers installed at the inlet and outlet—and according to technical specifications, without any gas-induced distortion, maintaining a stable industrial-standard atmospheric pressure during operation.
4. Backflow rate of Shandong vacuum pumps:
The backflow rate of a centrifugal pump is expressed in g/cm²·s. It refers to the mass flow rate of fluid passing through the pump’s inlet and outlet, taking into account the pump’s utilization coefficient when the pump operates according to its technical specifications.
5. Suction speed index of Shandong vacuum pumps:
The practical operating pumping speed ratio of a centrifugal pump, based on its fundamental theoretical pumping speed and the molecular-structure-based flow rate at the pump’s inlet and outlet.
Repair and Usage Guidelines for Shandong Vacuum Pumps
With the advancement of economy and technology, the application fields of vacuum pumps have become increasingly broad. They play an extremely important role in industrial production processes such as vacuum filtration, vacuum pump water intake channels, vacuum pump feeding, evaporation equipment, vacuum concentration, anti-humidity vacuum systems, and vacuum degassing. In addition to these applications, vacuum pumps also boast advantages such as compact structure, stable and reliable operation, and uniform flow rate. However, their efficiency in generating vacuum is relatively low—this may be attributed to the significant energy consumption by the centrifugal impeller when agitating liquids. During prolonged use, certain components of a vacuum pump will inevitably suffer some degree of damage. Once the extent of damage reaches a critical level, the pump may start emitting hissing noises and vibrations. Moreover, damage to the motor bearings or shaft is another major contributing factor. At this point, it becomes essential to conduct a thorough safety inspection of every component of the pump and to repair any damaged parts. Furthermore, if solid particles enter the pump chamber and cause blockage, this can also lead to similar issues. Therefore, it is crucial to promptly remove any debris from the pump chamber. It is strongly discouraged to operate a vacuum pump whose pump casing and motor shaft are not properly aligned; doing so can easily result in coupling damage, as well as noise and vibration problems. Hence, it is imperative to ensure that the centerlines of the pump casing and motor shaft are precisely aligned, and the coupling should also be regularly maintained and repaired as needed.
Another situation that can cause noise and vibration in a vacuum pump is when the pump is oversized. In such cases, the noise tends to be a high-pitched squeaking sound. Therefore, if you hear a squeaking noise, it’s likely that the vacuum pump is too large. At this point, you’ll need to open the pump’s air vent valve and let some gas in.