Abstract
This paper discusses the history and development of stepped motor driven non-valve metering pumps. This type of metering pumps are widely used in industry, such as in hazardous, chemical, and industrial processing processes. This paper will also discuss the advantages and disadvantages of using stepped motor driven non-valve metering pumps compared to conventional pumps which use valves and rotors. Furthermore, this paper will highlight some of the latest technological advancements for this type of pump.
1. Introduction
Metering pumps are pumps that precisely regulate the flow of liquid, gas or vapor from one area to another. They are often used in hazardous, chemical, or industrial processes to accurately measure and control the transfer of fluids or gases. Traditionally, metering pumps have been powered by a rotary or valve-based mechanism. Recently, advancements in technology have enabled metering pumps to be powered by stepper motors, which provide more precise control over the flow rate of fluid during the pumping process.
2. History and background
Metering pumps have been used in industry for many years. Early metering pumps used a mechanical rotary mechanism to transfer a specific amount of fluid through the system. These types of pumps used seals and diaphragms to ensure an accurate amount of fluid was being transferred. With the advent of stepper motor technology, it was possible to create a non-valve metering pump. This specific type of pump is a relatively new innovation in the industry, but has already seen widespread use and acceptance.
3. Advantages and disadvantages
There are a number of advantages to using a stepped motor driven non-valve metering pump compared to a valve- or rotor-based system. These include better control over pulse frequency and pulse duration, as well as a greater accuracy in the delivery of liquids. Additionally, these pumps are more resistance to particles and dirt, which makes them well-suited for applications that involve corrosive liquids.
One potential disadvantage to using stepper motor driven metering pumps is their typically higher cost compared to traditional pump designs. Additionally, these pumps are more complex, and require more maintenance and setup compared to traditional systems.
4. Latest technology
Recent technological advancements in stepper motor driven metering pumps have made them more efficient and accurate. These advancements include the use of Programmable Logic Controllers (PLCs), which allow the operator to precisely adjust the frequency and duration of the pumps pulses.
Additionally, Variable Frequency Drives (VFDs) are often employed to increase the accuracy of the pumps output.
Finally, the use of feedback elements such as flow sensors, pressure sensors, and temperature sensors, allow for even greater precision and control over the pumps operation.
5. Conclusion
Step motor driven non-valve metering pumps provide an efficient and cost-effective way to accurately and precisely control the transfer of fluids and gases from one area to another. These pumps have been widely accepted in a variety of applications and have been enhanced by recent technological advancements. While these pumps are typically more complex than conventional systems, the advantages they offer often make them a preferable choice for many applications.
