Selection of nozzles and pumps

When selecting nozzles and the corresponding liquid transfer pumps, multiple factors need to be taken into account, such as the specifications of the tank, the required flow rate, head pressure, and the properties of the liquid. The following are the general steps and considerations for selection: 1. Flow rate and head: First, you have specified that the flow rate of the infusion pump is 100 m³/h, with a head of 30 m. These will be the basic parameters for selecting the pump. 2. Type of pump: Centrifugal pumps are usually chosen for transporting liquids. Determining whether a single-stage or multi-stage centrifugal pump is needed depends on the required head and flow rate. 3. Pump material: Select an appropriate material based on the corrosivity, temperature, pH value, etc., of the medium to be transported. 4. Nozzle design: The design of the nozzle requires consideration of the dimensions of the tank, as well as the height that the liquid can reach after being ejected from the nozzle outlet. You need to raise the position of the overflow port by 150 mm, which means the nozzle must generate sufficient force to spray the liquid to a height 150 mm above the original overflow port. 5. Size and number of nozzles: The diameter and quantity of nozzles will depend on the required spraying coverage area and flow distribution. With a tank width of 3000 mm, nozzles may need to be installed at both ends and aligned to ensure even liquid spraying and achieve the purpose of improving the overflow outlet. 6. Calculate pressure loss: The liquid flowing through the nozzle experiences pressure loss, which must be taken into account when selecting a pump. Ensure that the actual output head of the pump can meet this requirement. 7. Integration with the actual system: It is also necessary to take into account other components in the system, such as the length and diameter of pipes, as well as the additional resistance that valves and elbows may cause. After determining the above parameters and conditions, you can consult the product catalogs of pump and nozzle manufacturers, or contact professional sales staff for selection. They usually perform calculations based on the detailed information you provide and recommend suitable pump and nozzle models. In summary, the selection of nozzles and infusion pumps is a complex engineering issue; it is recommended to consult professional engineers or the technical support of suppliers during this selection process to ensure accuracy in the choice and efficient operation of the system. .