It would make engineering much easier if all water came at the same speed.
It’s not.
Wastewater entering a residential system can vary throughout the day. Industrial and commercial buildings can have operating peak times. Stormwater can change dramatically with weather conditions. Demand for clean water can also change depending on the application.
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So, designing a pump station isn’t simply the matter of identifying a flow amount and then selecting the equipment capable of meeting it. Engineers have to understand the variety of conditions that the system is likely to be exposed to.
Think about operating conditions Consider Operating Conditions, not just maximum capacity
It is obvious that maximum flow is an essential element, but it only represents one element of the functioning of an installation. Imagine a wastewater system designed to provide a high peak-flow. Most of the time the flow that enters it could be significantly less. In these times when the station is not operating, it must be operating properly.
It raises issues such as wet-well sizing and the size of the pump and control system conditions for head, how to adapt equipment when demand changes.
When designing a package pumping system, it is important to think about the needs of the place and not only the pump capacity.
The daily routine of wastewater
The influent conditions at the wastewater liftstation that serves households, businesses or municipal infrastructure may change during the course of the operation.
The system has to take in wastewater and then activate its pumps in accordance with the established control plan by the station. The structural dimensions, pumps, valves electrical components, piping and controls play a role in the process.
Design may also take into account additional considerations specific to the site. Romtec Utilities can incorporate auxiliary systems like grinder vaults and odor-control equipment when required by the application. The result is a station designed around the project instead of a standard configuration that is applied to all wastewater sites.
Stormwater can change much faster
A stormwater lift station may see relatively little activity during dry conditions and then face substantially greater inflow during a weather event. The station can be part of a larger flood-control treatment, detention or drainage strategy, which makes the stormwater strategy surrounding it an essential element of the system design.
Romtec Utilities takes into consideration things like the flow rate needed as well as head conditions, the size of the system as well as the requirements of the location and environmental aspects when designing these systems.
Stations used for commercial developments can look very different than those intended for municipal stormwater applications.
The Head Conditions are vital. along with Flow
The problem of transporting 1,000 gallons is not the only engineering problem. Engineers should also be aware of the direction of the water and what kind of resistance the pumping system is expected to face.
Pumps can operate at different head levels depending on the design of the system, including the piping configuration, discharge conditions, etc.
The relationship between flow and head is one reason simply choosing an appropriate pump based upon a capacity rating isn’t enough. The pump technology and station configuration must be adapted to the hydraulic requirements of the entire application.
Plan for the Conditions that the Station Will Experiece
Romtec Utilities designs and develops custom pumping systems designed to meet the requirements of wastewater stormwater management as well as industrial applications, boosters, and many more. The process can include budgeting and design in the beginning, complete plans, system supplies, documentation and start-up, testing, and commissioning.
The fundamental concept of engineering is that a real pumping systems don’t work under one condition.
They are faced with fluctuating demands, flows and particular hydro requirements of the project. It is important to design a station that can manage this challenge.