Vissering pumping station is named after Master Gerard Vissering, president of De Nederlandsche Bank and chairman of the Zuiderzee Association from 1919 to 1937. Together with Buma pumping station near Lemmer, it drains the lower section of the Northeast Polder. The lower division has an area of about 39,000 ha and a target level of NAP -5.75 m summer level and NAP -5.85 m winter level. The pumping station pumps water from the Urkervaart canal to the IJsselmeer.
Pumps and motors
The pumping station consists of three vertical centrifugal pumps, two making 120 rpm and one of 117 rpm. The total capacity of the pumping station is about 2320 m3, per minute. Two pumps have a capacity of 800 m3 each and the third can handle 720 m3 per minute.
In 1998/1999, two We…
Vissering pumping station is named after Master Gerard Vissering, president of De Nederlandsche Bank and chairman of the Zuiderzee Association from 1919 to 1937. Together with Buma pumping station near Lemmer, it drains the lower section of the Northeast Polder. The lower division has an area of about 39,000 ha and a target level of NAP -5.75 m summer level and NAP -5.85 m winter level. The pumping station pumps water from the Urkervaart canal to the IJsselmeer.
Pumps and motors
The pumping station consists of three vertical centrifugal pumps, two making 120 rpm and one of 117 rpm. The total capacity of the pumping station is about 2320 m3, per minute. Two pumps have a capacity of 800 m3 each and the third can handle 720 m3 per minute.
In 1998/1999, two Werkspoor diesel engines were replaced by new gas engines after more than 50 years of service. The diesel engine still in operation, a MAN 12-cylinder with an output of 1,110 kW dates from 1983 and is semi-automatic. Eventually, this diesel engine will also be replaced by a gas engine.
Electricity
The automatically controlled 16-cylinder gas engines each have a capacity of 1110 kW at 1,500 rpm and can drive a dynamo to generate electricity during periods when pumping is not required.
Vissering pumping station can therefore be classified as a small power station, which is unique for a pumping station in the Netherlands. The electricity generated is supplied to the grid for a fee. The engines in operation release heat, which is transported as residual heat through a pipe system to the nearby industrial estate. This residual heat is sold to companies on the site. The heat is used for production processes, space heating and cooling via heat absorption machines, among other things.
Saving
The heat supply means a total energy saving of 600,000 m3 of natural gas on an annual basis. Further expansion of the grid is a possibility in the future.
In case of power failure, a diesel emergency power generator starts automatically. This generator supplies power to the pumping station within 10 seconds so that the pumping station continues to operate. The emergency generator has a capacity of 70 kVA. This is sufficient for the pumping station including the hydraulic valves, duckweed cleaner, site lighting and, if necessary, the sluice.
