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During the trial operation, the unit has a safe and stable operation with a maximum load of 400MW under the current head. The monitoring data shows that the temperature of the upper and lower guides and the thrust bearing of the unit and the vibration and swing of each part are within the excellent range of the national standard, and the electrical equipment is running. reliable. At present, the cumulative power generation of the unit has reached 65 million kWh.
Longtan Hydropower Engineering has set a precedent for the electromechanical installation of the highest water head and 700,000 kW underground powerhouse in China. The Group's Hydropower Seventh Bureau Longtan Electromechanical Installation Project Department, which is responsible for the installation of Longtan No.1~4, adheres to the enterprise tenet of "pursuing excellence, creating quality products and providing first-class service", taking science and technology innovation as the guide, scientific organization and careful construction. Successfully completed the installation and commissioning of the world's first 700MW full air-cooled hydro-generator unit, the largest three-phase combined transformer, 500 kV GIS switch station, etc., and created a new record for the installation and commissioning of the same scale units in China. It has become another model in the history of hydropower construction and has provided valuable experience for the installation of the same type of units in the future. "National hydroelectricity experts jointly tested the installation results of the Longtan project. The results show that the installation quality of the first hydro-generator unit of Longtan Project is at the leading level in China," Fu Yuanchu, a consultant of China Hydropower Construction Group Co., Ltd. and a famous hydroelectric power expert. Very high evaluation.
At present, Longtan No. 1 will reasonably determine the operation mode of the unit according to the stable operation requirements of the unit, the head change and the unit operating conditions. It is planned to be put into commercial operation in June.
According to reports, before the 72-hour test run of the unit, water-filling commissioning and grid-connected commissioning have been carried out. The 72-hour trial run is a very important comprehensive test before entering the official power generation. The working state is the same as the official power generation, which is used to test the system unit. Whether it is safe and reliable, can it operate normally for a long time in the case of grid connection with the grid. After 72 hours of trial operation, it will be transferred to the operation management of the power plant.
Longtan Hydropower Project is the leading backbone control project for the cascade development of Hongshui River in China. It is one of the ten landmark projects of the country's western development and one of the strategic projects of "West-to-East Power Transmission". It is known as the "rich mine in hydropower rich ore." ". Longtan Hydropower Station designed and installed 9 sets of 700,000 kilowatt units with a total capacity of 6.3 million kilowatts. The project started in July 2001 and is scheduled to be completed by the end of 2009.
1. When guests stay in the store, they only need to register at the front desk, and after completing the procedures, they will get a valid stay time proximity card. The guest can open his room freely when he gets the key with the house number, without having to open the door through the waiter.
2. Guests can rest assured to put their items in the room when they go out, and when guests return to the hotel, they can open the square tongue when they move in the room. At this time, it is safer. The floor attendant cannot open the door lock without the guest's permission (available in unexpected situations) Emergency card opened);
3. The hotel can use the data card to extract the door opening record in the lock and print it out as evidence to judge the authenticity of the accident. The smart card key is a multi-encryption key, which overcomes the characteristics of mechanical keys that are easy to copy and not portable, and is safer and more reliable for the hotel and guests.
4. Scientific and scientific hotel management. There are more than ten types of hotel smart card management systems, with different function cards, which can conveniently implement hotel management and improve the economic benefits of the hotel.
5. People who are away from home will give priority to choosing hotels with good image, sense of security and convenience when staying; smart card door locks can provide guests with the above enjoyment, bringing a continuous source of customers to the hotel, in real life hotels There may be situations where the guest`s stay is overdue and the deposit is insufficient or the room escape fee is maliciously owed, causing both parties to be unhappy or even friction with the guest, which will cause economic losses to the hotel and affect the hotel`s reputation to a certain extent;
6. The "effective stay time" of the smart card door lock can solve this problem well and clear your worries. The smart card key issued to the guest by the smart card electronic lock of our store cannot be copied, and the confidentiality is strong. The guest opens the door by himself without having to go through the floor attendant, which can greatly reduce the staff expenses of the hotel attendant and the corresponding comprehensive expenses.
At 16:00 on May 21, the first unit of Longtan Hydropower Station was successfully tested for 72 hours with continuous load test, which marked that the world's first 700MW full air-cooled hydro-generator unit was put into commercial operation conditions, and the Longtan project achieved significant results. .