Mevas supplies a complete boiler room to Cartiera San Giorgio with the new Tower Eco System Injection. Based on years of experience and collaborations with the largest boiler manufacturers, Mevas has developed TESI (Tower Eco System Injection).
TESI can be adapted to any type of condensate return system for new generation boilers, with very low layout impacts and reduced installation costs thanks to its positioning on a skid with a support structure certified according to EN 1090.
It is equipped with an independent control PLC that manages all the operating phases separately from the boiler logic, in order to reduce the commissioning times, manage the transitory and warm-up phases, favoring a better diagnosis of the process. The PLC is equipped with a system for remote assistance, provided in order to monitor the process and maximize the speed of intervention in case of requests from the customer.
The real revolution of TESI system lies in the new plant engineering approach with which the thermal power plant is seen; if until now the only pre-assembled component was the boiler, now also the condensate recovery and the thermophysical treatment of the feed water will benefit from the rapid installation typical of compact systems.
The versatility of TESI is such that it can allow, through the addition of the SP package (Steam Pack), the exploitation of enthalpy flows coming from a primary process.
The TESISp package (Steam Pack) therefore allows steam production at different pressure levels (TESISpL for steam up to 9 bar and TESISpH for steam up to 20 bar), considerably increasing the overall efficiency of the steam production plant. , minimizing the impact on the overall layout.
The combination of HE Smart and TESI technologies makes it possible to manage steam generation and condensate return in a fully integrated and highly efficient manner. This integration optimizes both flow rate and temperature of feed water supplied to the steam generator. In these conditions, the HE Smart system operates efficiently across its three exchangers, distributing heat recovery at maximum performance.
As a result, the steam generator constantly works near its optimal point, reducing stress on control elements and minimizing wear over time.
Operating conditions before intervention:
- Steam production from boiler [kg / h] 4500
- Make-up water flow [kg / h] 500
- Boiler working pressure [BarG] 9
- Condensate make-up temperature in the boiler [° C] 105
- Cold make-up water temperature [° C] 15
- Operating conditions after HESMART + TESISpL intervention
- Working pressure TESISpL [BarG] 2.5
- Condensate make-up temperature in the boiler [° C] 135
- Make-up water temperature [° C] 95
- Average cost of methane gas [€ / Nm3] 0.3
- Average annual factory productivity [hours] 8,100
- Methane saved [Nm3 / year] 172,337
- Savings [€ / year] 51,700
The excellent synergy obtained between the two systems was favored by the automation present on them: their interconnection took place without substantial changes to the hardware or software of the related control panels; both devices have the necessary arrangements to be interconnected and to be part of a Smart Factory from an Industry 4.0 perspective. In addition to communicating with each other, the systems can interact with the outside world for remote assistance services, recording of trends, trends, alarms, punctual data in a protected Cloud and many other services that can be implemented and developed to measure, reconciling the needs of the individual customer.
