Zhongkai Pump Manufacturer: A Brief Introduction to Zhongkai Pump Information
Release time:
2021-10-25
Source:
The middle-opening pump (middle-opening circulation), also known as a single-stage double-suction centrifugal pump, is characterized by its large flow capacity for transporting media. The working principle of the middle-opening pump: the impeller is installed inside the pump casing and secured to the pump shaft, driven directly by a motor. There is a suction pipe connected to the suction line in the center of the pump casing. Liquid enters the pump through the bottom valve and the suction pipe. The discharge port on the pump casing is connected to the discharge pipe. When the pump's rotational speed is constant, its head and flow rate are related to the diameter of the impeller.
The middle-opening pump (middle-opening circulation) is also known as a single-stage double-suction centrifugal pump, and its main feature is the large flow of the medium it transports. The working principle of the middle-opening pump: The impeller is installed inside the pump casing and secured to the pump shaft, driven directly by a motor. There is a suction pipe connected to the suction pipe in the center of the pump casing. The liquid enters the pump through the bottom valve and the suction pipe. The discharge port on the pump casing is connected to the discharge pipe. When the pump's speed is constant, its head and flow rate are related to the diameter of the impeller.
Principles for selecting a middle-opening pump:
The middle-opening pump is a widely used general mechanical device, extensively applied in sectors such as petroleum, chemical industry, electric metallurgy, mining, shipbuilding materials selection, light industry, agriculture, civil defense, and national defense, holding an important position in the country. The so-called reasonable selection of a middle-opening pump means comprehensively considering investment, operating costs, and other comprehensive technical and economic indicators of the pump unit and pumping station to ensure compliance with economic, safety, and applicability principles. Specifically, there are several aspects:
1. It must meet the requirements for flow rate and head, meaning that the working point of the pump (the intersection of the device characteristic curve and the pump performance curve) must always remain within the efficient range to save energy and avoid damaging parts.
2. The selected pump should not only be small in size, light in weight, and low in cost but also have good performance and high efficiency.
3. It should have good cavitation resistance, stable operation, and long service life.
4. The selected pump project should have low investment and operating costs.
Centrifugal pump