Guide: The world's most ultra-clean and ultra-low coal consumption coal-fired power unit has generated electricity! , Ultra-supercritical units Ultra-supercritical units and supercritical units in thermal power plants refer to units whose working fluid parameters in the boiler reach or exceed the critical pressure. The working fluid in the boiler is water, the critical pressure of water is 22.129MPa, the critical temperature is 37...

Ultra Supercritical Unit

The ultra-supercritical units and supercritical units in thermal power plants refer to the units whose working medium parameters in the boiler reach or exceed the critical pressure. The working fluid in the boiler is water, the critical pressure of water is 22.129MPa, and the critical temperature is 374.15℃; at this pressure and temperature, the density of the water expanded due to high temperature and the water vapor compressed due to high pressure are the same, called The critical point of water, if the pressure of the working fluid in the furnace is lower than this pressure, it is called a subcritical boiler. If it is higher than this pressure, it is a supercritical boiler. The steam temperature in the furnace is not lower than 593℃ or the steam pressure is not lower than 31 MPa. critical. In engineering, it is often referred to as ultra-supercritical.
At 18:18 on June 9th, China Resources Caofeidian Power Plant 2×1000 MW ultra-supercritical coal-fired power generation unit designed by the company's Hebei Institute and contracted by Henan Engineering Company successfully passed the 168-hour full-load trial operation and was officially transferred to production .

During the operation of the unit, the power consumption per kilowatt-hour of power generation is less than 263 grams, which is better than the global minimum design energy consumption standard. The actual emission of sulfur dioxide is 6.5 mg per cubic meter, nitrogen oxides are 20 mg per cubic meter, and smoke and dust are 2.1 mg per cubic meter. , Fully surpassing the design index and reaching ultra-clean emission standards.
 
It is reported that the project is located in the Bohai Bay, an important connection point for the coordinated development of the “Belt and Road” and Beijing-Tianjin-Hebei, and shoulders the historical mission of providing power and energy support for the Bohai Bay Economic Circle and promoting the rapid and healthy development of Beijing-Tianjin-Hebei. Henan Engineering Co., Ltd. has undertaken the installation engineering of unit 4 of the second phase and unit debugging of equipment, cooperating with the sub-system and the entire system debugging tasks. This project is the first million-kilowatt thermal power project in Hebei Province. Since the start of the unit, Henan Company has been adhering to the concept of "making outstanding achievements outstanding". The project department has strengthened project management, scientifically allocated resources, and actively exerted the top-level design and quality process of construction. Features such as excellent. Faced with the application of a large number of new processes, new equipment, new technologies, and new materials, the project department insists on taking planning as the leader and taking progress as the main line, firmly grasping the key links, and applying the new technology to the construction line, safe, high-quality, Efficiently completed the "Seven One Success" goals of DCS power receiving, hydraulic test, reverse power transmission, buckle cylinder, ignition and rotation, grid connection, 168 full load trial operation, and finally successfully achieved the commissioning and transfer of the unit. The unanimous approval of the owners, supervisors and brothers involved in the construction unit has enhanced the brand image of China Power Construction Corporation.
 
The smooth handover of the China Resources Caofeidian project to “ultra-clean” and “ultra-low coal consumption” is of great significance to the local air pollution control and improvement of the regional energy structure. It will provide important power energy support for the Bohai Bay Economic Circle and will effectively ease the North China region. The problem of tight power supply has better promoted the rapid and healthy development of Beijing, Tianjin and Hebei. In the next step, Henan Company will do a good job in follow-up work such as project deficiencies, data transfer and project settlement, and continue a new chapter for the long-term cooperation between the company and China Resources Power.