Key points for selecting sewage pump
The key points of sewage pump selection mainly include the following aspects:
1. Sewage properties
Media type: Select a suitable sewage pump according to the properties of impurities in sewage. For example, if the sewage contains large pieces of debris (fragile), a cutting pump should be used; if it is acid and alkali sewage, a plastic pump (fluoroplastic pump, etc.) is required; for general corrosive wastewater, a stainless steel pump (304 stainless steel, 316L stainless steel) can be used.
Solid particle content: Understand the content and size of solid particles in sewage in order to select a pump that can withstand the wear of these particles.
2. Flow demand
Determine the flow range: Determine the flow rate of the water pump according to work requirements, which is a key factor in selection. The flow rate should be selected based on the drainage second flow rate or the maximum hourly flow rate of drainage to ensure that the pump can meet the actual drainage needs.
Consider flow changes: If there is a need to adjust the flow rate, it should be ensured that the selected pump can operate efficiently within the flow change range.
3. Lift requirements
Calculate the lift: Calculate the lift according to the height required to be lifted in the on-site working environment, and consider factors such as pipeline loss, outlet pressure and safety margin.
Ensure head matching: The selected pump should be able to provide sufficient head to meet actual needs, while avoiding excessive head that leads to increased energy consumption.
4. Energy efficiency and reliability
Choose an efficient pump: Choosing a pump with high energy efficiency can reduce energy consumption and maintenance costs. Generally speaking, pumps with parameters operating in the range of 0.7~1.2 times the rated flow rate have higher energy efficiency.
Consider reliability: Choosing a pump with high reliability can reduce downtime and improve production efficiency.
5. Installation and maintenance
Determine the installation method: Select a suitable installation method according to site conditions, such as fixed or mobile.
Consider maintenance convenience: Choose a pump type that is easy to maintain and overhaul to reduce maintenance costs and improve equipment utilization.
6. Other factors
Price and cost: Under the premise of ensuring performance and quality, consider the price and overall cost of the pump and choose a product with high cost performance.
Accessories and accessories: Select suitable accessories and accessories such as valves, check valves, etc. according to the specific use environment.
In summary, the key points of sewage pump selection involve many aspects, and it is necessary to comprehensively consider the nature of sewage, flow requirements, head requirements, energy efficiency and reliability, installation and maintenance, and other factors. Through comprehensive analysis and comparison, select the sewage pump model that best suits the actual needs to ensure the normal operation and efficient operation of the sewage treatment system.
