How does a chemical dosing system work?
How does a chemical dosing system work?
A dosing pump draws a measured amount of liquid into its chamber and injects the chemical into a tank or pipe that contains the fluid that is being dosed. It’s powered by an electric motor or an air actuator and has a controller that turns the pump on and off and manages the flow rate.
What is a chemical dosing skid?
Chemical dosing skids (also referred to as chemical metering or injecting skids) are modular systems to support pumps, piping, and valves for applications that require metered chemicals. These systems are easily transported and can be prebuilt to reduce setup time and costly in-plant piping runs.
What is chemical dosing in chilled water system?
Chemical dosing system is widely applied in corrosion, scale inhibition, sterilization and algae removal of the circuiting water systems such as air-conditioning cooling water, chilled water, ice storage, etc. …
Which pumps are commonly used for chemical dosing?
Gear pumps, piston pumps, peristaltic pumps, and diaphragm type pumps are all available pumps to consider when injecting chemicals.
What is a chemical dosing system?
A chemical dosing system is a facility for automated injection of reagents into a wastewater network for the control of septicity and odour emissions. These systems are typically used at pump stations, sewer manholes, and rising mains.
What is the purpose of dosing?
The word dosing is very commonly used by engineers in thermal power stations, in water treatment, in any industry where steam is being generated, and in building services for heating and cooling water treatment. Dosing procedures are also in vogue in textile and similar industries where chemical treatment is involved.
How does a calibration column work?
Calibration Columns are installed on the suction side of the metering pump and are isolated with two valves installed with the cylinder. The top of the cylinder is vented back to the supply tank or drain. The calibration cylinder is filled to the top mark then the valve from the tank is closed.
What is chemical dosing system?
What is chemical dosing in HVAC?
Chemical treatment (or dosing): Proprietary (like NALCOOL) or generic chemicals (like Sodium Silicate, Sodium Nitrite, and Sodium Sulfite) compositions are used to prevent the chiller system from corrosion, scaling, fouling and microbiological growth.
How many types of dosing pumps are there?
There are 4 different types of dosing pumps designed based on their action and pumping mechanism: Diaphragm-Type Constant Injection Pump – This is a pump chamber filled and emptied by a piston.
What is chemical pump?
A chemical feed pump, also known as a chemical dosing pump, is a compact positive displacement pump that injects a precise amount of chemical or other substance into water, gas, or steam. It is typically part of a chemical feed system that comprises a pump or multiple pumps, storage tank, pipes, and control panel.
How is dosing done?
Dosing is done in wet processes with dosing pumps but even more importantly in dry processes, just prior to the packaging of the product. Dosing of dry materials is commonly done through Gain-in-Weight dosing or Loss-in-Weight dosing using equipment on load cells.
