Dosing in heating plant with heavy fuel oil boilers

Heating plants with heavy fuel oil boilers must reduce emissions to protect the environment. Just the right amount of additives are dosed to the burners via a control signal from online measurements to keep the emission values within legal limits and thus minimise them. This is achieved with the aid of dosing pumps, which dose the additives from the supply tanks in a controlled fashion.

A ring circuit fed by upstream dosing pumps maintains the optimal function of the solenoid dosing pumps on the boilers. The dosing of the additives is controlled in accordance with the burner load and transmitted to the Jesco dosing pumps via a 4...20 mA analogue signal. The installation of pulsation dampeners as dosing pump accessories ensures smooth and consistent dosing, which contributes to the longevity of the system.

Suitable products for your application

MAGDOS LP

MAGDOS LP - Easy handling and space-saving! The MAGDOS LP is available in seven output ranges. Double ball valves ensure precise dosing. To adjust the dosing capacity, the stroke frequency can be adjusted manually, via external control contacts or via a 0/4 - 20 mA signal. The MAGDOS LP is also available with an optional Ethernet interface. The network connection makes it possible to control the stroke frequency and the number of strokes. In addition, all fault messages can be transmitted in the opposite direction. Features & advantages Output range 0.36 - 13 l/h, up to 16 bar Wide-range power supply 100 - 240 V, 50/60 Hz, IP65 Dosing head ventilation (plastic version) Suitable for wall and floor mounting Material versions PVC, PP, PVDF and stainless steel Stroke frequency precisely adjustable with keypad Graphic display with multilingual menu Analogue input and pulse input (overshoot and undershoot) Level input with pre-alarm and main alarm Enable input for external start/stop Display of flow rate in various units Limitation of the maximum flow rate possible Energy-saving mode "Eco-Mode" possible Stroke feedback output Alarm relay output Batch dosing with interval and timer function Dosing control input Diaphragm rupture detection and signalling (optional) Ethernet interface (optional) CSA and UL certified

Details

Your contact person

Lutz-Jesco Suisse SA

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