PARAT IEH High Voltage Electrode Boiler for Steam and Hot water скачать в хорошем качестве

PARAT IEH High Voltage Electrode Boiler for Steam and Hot water

Read More: http://www.parat.no/en/ieh From Renewable POWER to HEAT with PARAT Electrode Boiler. From cold to full load in less than 5 minutes 30 seconds from minimum to full load Minimum load is below 1% No current to earth Compact design – up to 60MW in one unit No low voltage transformer required No Electrode wear Minimum maintenance required PARAT; boilers since 1920 Our electrode boiler has been designed and developed by our in-house engineers and manufactured in our workshop in Norway since 1990. The PARAT Electrode boilers are very reliable and has been used as the main boiler in many of our deliveries. Thanks to our long experience, we where chosen to deliver the first steam boilers for Grid Regulation in the World. Steam and hot water The electrode boiler is delivered both in steam and hot water versions. Renewable energy can be used in steam grids and district heating networks. The electrode boiler is also a valuable backup boiler. ELECTRICAL GRID REGULATION The growing production of renewable power from sun and wind gives more and more often excess power in the grid. This power must be used, to stabilize the frequency of the current at 50 Hz. This is called grid frequency regulation. Electrical grid regulation Increasing power generation from wind and solar systems have created a demand for fast frequency regulation of the electrical power grids. The PARAT Electrode boiler can be used for primary regulation with less than 30 seconds response time from minimum to full load. Converting electrical power to heat makes it possible to accumulate renewable energy in periods of overproduction. This way the renewables can run and the clean power used will replace fossil fuel. The PARAT Electrode boiler gives the most compact and cost efficient transformation of power to heat. Backup boiler Since electrical power will be available as a cost competitive fuel in the future, the PARAT Electrode boiler will also be a valuable backup boiler in case of breakdown in the fired boilers or in the fuel distribution system. No other boiler alternative can be ready from cold condition to full load in 5 minutes. Low power price Even in countries where renewable energy is not yet significant in the power grid, the electrode boiler could be used in periods with low power prices e.g. in the night. Steam Solutions A steam grid is the perfect place to use excess power from renewable energy. When the electrode boiler runs, the traditional boilers can decrease their load and fossil fuel be saved. Market leader The PARAT Electrode boiler is the world leading solution for Electrode Steam Boilers. Steam is produced in the water between the electrodes. The internal circulation system brings water to the electrodes in a ratio 10:1 for the evaporation. The output is controlled by a throttle valve that regulates the level in the upper chamber. Steam accumulates in the upper part of the pressure vessel and is released through the main steam valve. If the steam pressure increases over the setpoint, the power is automatically regulated down. An important parameter related to optimal function of the boiler is the water conductivity. The conductivity is continuously monitored to ensure that the boiler gives the correct output. When the conductivity exceeds the selected setpoint automatic blowdown is initiated. Electrical steam super heaters can be delivered separately with low voltage supply. Hot Water A district heating network will always have the possibility to receive excess power from renewable energy. When the electrode boiler runs, the traditional boilers can decrease their load and save fossil fuel. By installing a thermal storage tank the capacity to receive large amounts of energy when the call for grid regulation is there. Thereafter the energy can be released from the tank when the client needs the heat. Hot water is generated by circulating the boiler water through the upper chamber where the electrodes are suspended. The boiler vessel is pressurized with nitrogen, and due to the relatively low water volume the boiler also acts as an expansion vessel. If temperature delivered to the client exceeds the setpoint, power of the boiler is automatically decreased. The output is controlled by a throttle valve that regulates the level in the upper boiler chamber. An important parameter related to optimal function of the boiler is the water conductivity. Due to our optimal electrode design, water conductivity stays constant and thereby keeps water consumption at a minimum. Our delivery includes piping, control valve and heat exchanger for heat supply to the district heating circuit. Control system We have used our experience to develope a modern and robust boiler control system on the Siemens S7 Fail-safe PLC platform which is easy to use. The boiler is also available with PARAT remote monitoring system. We deliver the boiler CE marked according to PED/2014/68/EU with boiler code EN12953.