This paper aims to explore the method of determining the geometric dimensions of the centrifugal pump impeller. By analyzing the working principle and design parameters of the centrifugal pump, combined with experimental data and theoretical calculations, a method for determining the geometric dimensions of the impeller based on similarity conversion method and performance optimization is proposed.

The selection of sewage lifting pump station equipment needs to comprehensively consider the geographical environment, sewage flow and water quality characteristics, operation stability and reliability, maintenance convenience, degree of automation and use conditions. In the selection process, detailed analysis and comparison should be carried out in combination with the actual situation to select the most suitable pump station type and configuration plan.

In the fire protection system, fire pumps and sprinkler pumps are two important pieces of equipment. They have significant differences in functions, application scenarios, and working principles. This article aims to provide an in-depth look at the differences between these two types of pumps in order to better understand their role in fire protection systems.

As an important part of the fire protection system, the control and starting methods of fire pumps are directly related to the efficiency and effect of fire rescue. With the advancement of science and technology and the continuous development of fire protection technology, the control and starting methods of fire pumps are becoming more diversified and intelligent. This article aims to explore the control and starting methods of fire pumps in order to provide a reference for the optimization of fire protection systems.

As a common centrifugal pump, the self-priming pump has the advantages of compact structure, easy operation and stable operation. It is widely used in power, chemical, metallurgy, environmental protection and other industries. However, in the actual operation process, some self-priming pumps will have the problem of large sound and vibration, which not only affects the normal operation of the equipment, but also may cause noise pollution to the surrounding environment. Therefore, it is of great practical significance to study the causes and solutions of the large sound and vibration of the self-priming pump.

When selecting a water pump for a golf course irrigation system pump station, it is necessary to select the water pump based on the actual situation and needs of the golf course, combined with the performance characteristics, advantages and disadvantages of the water pump. At the same time, it is also necessary to calculate the required water pump flow, head and power parameters based on specific parameters to ensure that the water pump can meet the irrigation needs of the golf course.

The fire protection system is an important infrastructure to ensure the safety of the city, and the fire hydrant pump is an important part of the fire protection system. When a fire occurs, whether the fire hydrant pump can provide sufficient fire extinguishing water is directly related to the fire fighting effect and personnel safety. Therefore, the reasonable determination of the flow rate of the fire hydrant pump is of great significance to improving the fire fighting ability of the fire protection system and ensuring the safety of the city.

Pneumatic diaphragm pumps have an important position in the field of fluid transportation due to their simple structure, convenient operation, strong self-priming ability, strong corrosion resistance, etc. However, different industrial occasions have different performance requirements for pneumatic diaphragm pumps, so the reasonable selection of component materials has become the key.

Single screw pumps, with their unique structure and superior performance, have been widely used in many industries such as petrochemicals, environmental protection, food and medicine. However, with the increase of use time, the performance of single screw pumps will gradually decline, or even fail, thus shortening their service life. Therefore, studying how to extend the service life of single screw pumps is of great significance to improving equipment efficiency and reducing maintenance costs.

As an important equipment for industrial fluid transportation, the selection of centrifugal pumps is directly related to production efficiency and operating costs. The correct selection of centrifugal pumps can not only ensure the stable operation of the production process, but also effectively reduce energy consumption and maintenance costs. Therefore, this article will discuss how to correctly select a suitable centrifugal pump from the aspects of the working principle, selection principle, parameter calculation and practical application of centrifugal pumps.