The Nitromat Pro VP nitrogen generator ensures a nitrogen cushion above the water in the vertical steel buffer tank (tank blanketing). It is necessary to cover the steel buffer tank with a nitrogen blanket (99% N2 purity) to prevent the water from absorbing oxygen. Additionally, the system prevents corrosion of the internal steel tank parts.
When the water level in the tank rises, the pressure of the nitrogen cushion also increases. This is measured by the supplied pressure sensor mounted on top of the buffer tank. The target pressure is set to 15 mbar. As soon as the pressure reaches 20 mbar, the mechanical relief valve (part of the mechanical vacuum/overpressure control valve) will open to release nitrogen.
When the water level in the buffer tank drops, the pressure of the nitrogen cushion decreases. As soon as it falls 5 mbar below the set target pressure, the nitrogen supply valve will be opened to allow nitrogen to flow from the nitrogen storage vessel to the buffer tank. Upon reaching the desired value, this valve will close again.
Conditions have been set regarding pressure regulation and the measurement of the expansion space, enabling the system to generate alarms via transmittable signals; e.g., low water pre-alarm, low water alarm, pressure too low alarm, and pressure too high alarm. The fully automatic and sophisticated control of the SOTEX control panel with SIEMENS PLC guarantees the safety of the valuable vertical buffer tank.
Systems
Nitromat Pro VP
The Sotex Nitromat Pro VP nitrogen expansion system generally consists of a Nitromat Pro nitrogen generator, a compressor and a nitrogen storage vessel. With a SOTEX nitrogen expansion system you are always assured of pure nitrogen to protect your vertical heat / cold storage tank.
The Nitromat VP series are highly reliable nitrogen generators, energy efficient and deliver a purity of 99% nitrogen or more. The Nitromat VP is the standard version in the product range and comes with highly reliable components from global brands, effective compressed air treatment, oil/water separator and a Siemens PLC control. The SOTEX Nitromat VP nitrogen generators are built according to the European CE PED directive, executed according to UL/CSA directive and have an EAC CU TR certificate. The SOTEX VP nitrogen system is applied to vertical storage tanks, where the standard version can provide one tank with a nitrogen blanket (pressure in mbar).
An intelligent and user-friendly Siemens control regulates the pressure balance of the nitrogen cushion in the heat storage tank and monitors the water content. This way you can rely on optimal security and protection of the tank and heating system.
The SOTEX nitrogen expansion systems successfully protect precious heat storage tanks all over the world. There are also SOTEX nitrogen expansion systems for the use on horizontal heat storage tanks using special buffer vessels for the expansion collection and of course the SOTEX nitrogen systems are used very successfully in more and more Geothermal projects. Communication modules such as Modbus, Profinet and Profibus and / or an extranet and internet are optional.
The new SOTEX Nitromat Pro nitrogen generators provide you with desired information such as the pressure in the buffer tank, content in percent and centimeters and also the pressure in the nitrogen storage vessel, all clearly displayed on a 7 ″ multi-colored touchscreen. Of course we can offer the desired information for application to your system, such as communication modules such as Modbus, Profinet and Profibus. Connection to an extranet and internet are of course also possible.
The most unique about the Nitromat Pro is the ‘Easy Commissioning’ help. As soon as you start up the installation for the first time, you will be guided step by step through the large screen during commissioning by means of clear instructions, questions and sample photos.
Applications nitrogen expansion systems
