WHAT IS A DOSING PUMP AND HOW DOES IT WORK?
A information to be taught what a dosing pump is and the way it works. Burt Process gives dependable, heavy obligation dosing methods for industrial purposes.
What is a Dosing Pump?
A dosing pump, which is a constructive displacement pump, is designed to inject a chemical or one other substance right into a circulation of water, fuel or steam. Dosing pumps, that are sometimes small, present an especially exact circulation fee for max management. They are the central a part of an built-in dosing system designed for automated dispersion of chemical compounds. This dosing definition applies to a variety of purposes and industries, from waste water therapy to meals processing.
Examples of Dosing Pump Applications
In addition to water therapy and meals industries, dosing pumps, also referred to as chemical metering pumps, are utilized in industrial vegetation, agriculture, manufacturing amenities, medical laboratories and mining operations. A chemical feed pump is perhaps used so as to add a caustic chemical or an acid to a water storage tank to neutralize the pH. It will also be used as a chlorine pump to kill micro organism. A chemical dosing pump is designed to function in difficult conditions, resembling excessive temperature and excessive strain environments.
How Does a Dosing Pump Work?
A dosing pump attracts a measured quantity of liquid into its chamber and injects the chemical right into a tank or pipe that incorporates the fluid that’s being dosed. It’s powered by an electrical motor or an air actuator and has a controller that turns the pump on and off and manages the circulation fee. Some fashions embody extra subtle management methods.
Parts of a Chemical Dosing System
The primary elements of a dosing pump embody:
- Chemical Container or Tank – holds the product to be dosed.
- Pump – varies in supplies and measurement; contains inlet, suction line and dosing line.
- Injector – one-way valve the place chemical is injected into product; overcomes strain in pipe and permits chemical into liquid circulation.
- Foot Valve – one-way valve hooked up to suction line; positioned into product drum and retains pump primed.
- Dosing Line – inflexible tube or strengthened hose; might be PE, PVC or stainless-steel for top strain use.
- Control System – Ensures accuracy; activates and off at particular instances. Can be easy circulation change or timer, as much as a SCADA central management system for numerous sensors and talent to combine into a bigger system.
Types of Dosing Pumps
These 4 dosing pump sorts are designed for various pressures, chemical compounds and purposes. They fluctuate by pumping motion and mechanism.
Diaphragm (fixed injection) pumps use a diaphragm, piston and valves on each the inlet and outlet to fill and empty its chamber. Drawing within the piston fills the chamber, and a certain quantity of chemical is injected at a preset velocity, often a proportion of the utmost circulation fee. Certain pump fashions are able to variable dosing charges.
Diaphragm (pulse injection) pumps additionally makes use of the diaphragm mechanism, however as an alternative of a continuing circulation fee, a solenoid coil takes within the chemical and injects it in pulses. The circulation fee is the size of time between pulses. It is much less correct than the fixed injection pump however is easy in design and cheap.
Lobe pumps let a sure quantity of fluid by means of meshing gear impellors. It isn’t as correct as a diaphragm pump and it is just appropriate for top viscosity fluids that may self-lubricate to attenuate put on. They’re not made for low circulation charges, as it’s troublesome to make sure accuracy.
Peristaltic pumps are extremely correct for dosing. A versatile bent tube lets the fluid move, and the circulation is managed by a curler that strikes by means of a mechanical arm on the surface. This pushes product within the tube into the dosing tube and primary fluid stream.