PRESSCON HORNIT N2, Руководство пользователя

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3.2.4 Horizontal buffertank in a DUO setup
The following components are installed on the horizontal buffertanks, that are arranged in a DUO setup, by default. The
different configurations described in chapter 3.2.3 can also be installed in a DUO setup and follow the same principles as
the examples below.
Figure 15. Default components on the horizontal buffertank in a DUO setup
Ref.
no. Description Function
1. Vacuum safety valve Mechanical valve that protects the tank against vacuum.
2. Pressure sensor 1
(0-1000 mBar / 0-1600 mBar /
0-2500 mBar)** Electronic transmitter that measures the pressure of the
nitrogen blanket at the top of buffertank 1.
3. Pressure sensor 2
(0-1000 mBar / 0-1600 mBar /
0-2500 mBar)** Electronic transmitter that measures the pressure of the
layer of water above the sensor including the pressure
of the nitrogen blanket in buffertank 1.
4. Spray feed*
Pipe that is perforated at the underside through which
heated water is injected into the buffertank. The
pressure sensor on the side of the buffertank is always
above the center of the injection pipe.
5. Pressure sensor 3
(0-1000 mBar / 0-1600 mBar /
0-2500 mBar)** Electronic transmitter that measures the pressure of the
nitrogen blanket at the top of buffertank 2.
6.
Pressure sensor 4
(0-1000 mBar / 0-1600 mBar /
0-2500 mBar)** Electronic transmitter that measures the pressure of the
layer of water above the sensor including the pressure
of the nitrogen blanket in buffertank 2.
*This component is part of the buffer tank and is not provided nor installed by PRESSCON.
**The applied measuring range depends on the setup of the buffertank.
3.2.5 DUO system for a High and low temperature networks
It is possible to combine a vertical and horizontal buffer tank in a DUO setup. The horizontal buffer tank accommodates
the expansion of the low temperature water network and the vertical tank accommodates the expansion of the high
temperature water network. The Presscon expansion system will then be built as a HORNIT N2 / N2i ECONOMY DUO
type.
1.
2.
3.
4.
Buffertank 1.
1.
5.
6.
4.
Buffertank 2.