//Negative pressure in power plant building turns doors into an unpredictable risk
Negative pressure in power plant building turns doors into an unpredictable risk2018-09-18T13:11:59+00:00

Project Description

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Wind and high pressure differences in a building of the RWE power plant gersteinwerk in Werne, Germany, turned the doors into an unpredictable risk and considerably shortened their operational life

Hinged door operator DICTAMAT 310-21 now safely and reliably opens and closes the exterior doors – also under pressure

Two simple exterior doors made of steel and with normal dimensions caused the responsible persons quite a headache. Due to the high negative pressure in the building it was nearly impossible to hold the doors during opening, and under unfavourable conditions the overhead door closer had no chance to properly close the doors. This also left its mark on the doors because they are quite frequently used.

Therefore both doors were replaced and equipped with a DICTATOR hinged door operator DICTAMAT 310-21.

Technical data of the doors: 
Two single-leaf hinged doors
Weight: about 80 kg
Dimensions: 900 x 2250 mm (width x height)

Hinged door operator DICTAMAT 310-21 now safely and reliably opens and closes the exterior doors – also under pressure

A completely normal, inconspicuous door: Difficult to imagine that due to the negative pressure in the building it was hardly controllable – until it was equipped with a DICTAMAT 310-21.

Wind and high pressure differences in a building of the RWE power plant, turned the doors into an unpredictable risk and considerably shortened their operational life

The right side of the door is additionally secured by a finger guard blind, as this edge is beyond the detection range of the sensor.

The DICTATOR solution

Hinged door operator DICTAMAT 310-21
with a 0.18 kW three-phase current motor, force 200 Nm
Separate adjusting of opening and closing speed
Special mounting plates for the operator and the rail to ensure their solid fixing

Safety:
Safety sensors that supervise the complete door range detect obstacles and a finger guard blind on the secondary closing edge. An electromagnetic clutch ensures – also in case of a power cut while the door is moving – that the door stops immediately upon detecting an obstacle. While closing, it will subsequently reverse at once.

Operation of the door:
OPEN command by switch-key, closing normally by automatic closing (time is adjustable)

DICTATOR elaborated the solution and mounted it to make sure the problem was perfectly solved.

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Contact

In the video, while demonstrating the safety device, you clearly can see the high suction effect in the building.

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