At the end of November, the first generating unit of the Shenzhen Pumped Storage Power Station was put into operation, which is the first large-scale pumped storage power station in the city of China. Dongfang Electrical Machinery Co., Ltd. (Dongfang Electrical Machinery) of Dongfang Electric Group Co., Ltd. provides 4 pumps and turbines to the power station and its auxiliary equipment.
As a complete set of BOP (Power Plant Auxiliary Equipment) of Shenbu Pump Turbine, Dongfang Electrical Machinery not only needs to provide pumps and turbines, power station auxiliary systems, ball valves, speed control systems and computer monitoring systems for deep storage, but also undertakes the entire power plant Start debugging, becoming the first 'domestic OEMs as the main debugging pumped storage power station'.
So, behind the first unit in deep pumped storage power plant put into operation, the Dongfang Electric debugging team what story?
Shenzhen Pumped Storage Power Station (hereinafter referred to as 'deep savings') is located in the beautiful Shenzhen Special Economic Zone. The installed power capacity of the power station is 4 × 300MW. It mainly undertakes the tasks of peak shaving, valley filling, frequency modulation, phasing and emergency backup of the power system. The completion and commissioning of the power station will play a very important role in alleviating the power supply pressure in Shenzhen, reducing the peaking range of thermal power and western transmission power, promoting access to nuclear power and new energy sources, and ensuring safe and reliable high-quality power supply.
Beautiful Shenzhen pumped storage power station on the reservoir
Deep-saving project is the first domestic CSG pumped storage project, its success or failure, a direct impact on the owners of the confidence of localization projects; for the first 'China's main plant as the main debugging pumped storage power plant' Oriental Motor, it also affects the future of Dongfang Electric market space.
Opportunities and challenges co-exist
Dongfang Electric Group has been actively responding to the 'One Belt and One Road Initiative' and has become more and more urgent as the products, technologies and services' go global. "Facing the development trend of the contractor mode at home and abroad, CEB Technology, management and service capabilities are of great significance for the future market expansion. However, the pumped storage project undoubtedly provides a platform for learning and progress.
China's energy development in the "13th Five-Year Plan" explicitly states that it will speed up the construction of pumped storage power stations. The construction of large-scale pumped storage power stations in China will usher in a peak and will surely become a major battle for domestic and foreign major hydropower equipment manufacturers place.
Shenzhen Pumped Storage Hydrogenerator No.1 extension tube is processed by Dongfang Electrical Machinery
Different from the traditional hydropower project, the pumped-storage host manufacturers not only need to provide the host equipment with excellent performance, but also need to undertake the all-around work such as the supply, technical support and commissioning of the complete sets of mechanical and electrical equipment, etc. Therefore, Capacity and technical support capabilities will become an important service competitiveness, in the current emphasis and emphasis on user needs as the center, product as a carrier, to provide users with complete service environment is particularly important.
The deep start project of the entire group to start the commissioning work is an important practice and exploration for Dongfang Electrical Machinery Co., Ltd. to transform from equipment suppliers to service-oriented enterprises, which is of great significance for enhancing the commissioning ability of Dongfang Electric Machinery and enhancing the competitiveness of the pumped storage projects.
As the host equipment supplier, Dongfang Electrical Machinery Co., Ltd. used to be the commissioning supervisor in Xianyou, Xianju and other pumping projects, but never played the role of main debugging party in pumping projects. Compared with conventional hydropower projects, pumping There are many working conditions of the storage unit and frequent transitions between different working conditions. The debugging side needs to focus on all the power plant equipment, debug and optimize the stable and reliable operation of the entire system, and require heavy workload and high technical difficulty.
Xianyou underground plant
Keep in mind the mission to tease forward
Difficulties are also pressure and motivation. Brave win before the difficult, wise win.
In August 2016, Dongfang Electromechanical specially set up a deep-rooted project commissioning team to take charge of starting and debugging all the units of the entire unit, formulating the overall implementation plan, detailed plan and grouping in accordance with the professional direction.Afterwards, Start the preparation of the commissioning directory and the collection of plant equipment drawings go hand in hand.
During the process of joint study and discussion, the team of commissioning formed a teamwork model that takes the old and new, assists in progress and exchanges and exchanges across disciplines, and constantly stimulates the rapid growth of young people. At the same time, it enhances the sharing of knowledge and skills of various professions for subsequent commissioning work The smooth development laid a solid foundation.
Soot deep deep construction site initial construction photos
At the expert review meeting of the entire group starting the trial operation outline, the technical experts from the national pumped storage project and the deep savings owner started the trial operation outline and commissioning plan for Shenbao Unit 1, which took half a year for the Dongfang Electric Machine Commissioning Team Give recognition.
During the preparation of test plan and isolation measure, the debugging team continued to pay close attention to the arrival of the first unit's mechanical and electrical equipment in Shenhua Power Station, coordinated the owners and installation units to improve and sort out the installation nodes and commissioning plans, and kept a close watch on the water storage in the upper and lower banks The team also takes into account all the equipment and possible risk points in the field commissioning and treats each preparation prior to on-site commissioning with a high sense of responsibility and mission.
'Four' a success
After more than one year of meticulous planning and preparation, in May 2017, Shenchi Unit 1 and the installation of various public facilities in the factory came to an end. The members of the commissioning team came to the power station one after another and were put into high-intensity working mode on site.
At the site of the power plant, the debugging team fully participated in the branch debugging and static debugging.In the static debugging stage, daily morning session, the debugging team discussed and analyzed the problems encountered in the debugging process, put forward the handling plan, urged the owners, Installation unit, supervision and other responsible parties play an active, actively cooperate to promote the commissioning work.
Commissioning team members strictly scrutinize debugging risk points during the day and meet the high standards and stringent requirements during the dusty and hot days in order to ensure the safety of the equipment as Shencun owners require unit 1 to be put into operation by the end of 2017. In the dusty and sultry workshop environment, And the test goes well; in the evening, turn on the projectors in narrow dorm rooms, brainstorming changes, optimizing commissioning options.
The debugging team communicated and coordinated on the scene of the power station
July and August deep power station, summer heat and typhoon coexist.Driving team fought day and night, and finally successfully completed the deep power station unit 1 division commissioning, static joint adjustment and the unit for the first time, and other important nodes Chongzhuan.
On September 29, 2017, at 11:32, Shenzhen Sub-unit No. 1 was tested for the first time and the unit was operating stably under the conditions of power generation. All auxiliary systems were working normally.
At 23:43 on October 7, 2017, on the eve of the victory of the 19th Plenum of the Party, the first pumping test of Shenchi Unit 1 was successful and the pumping operation was stable, marking the successful completion of the most crucial experimental node. The real achievement is the 19th party gift.
At 23:50 on October 31, 2017, a total of 38 dynamic tests were carried out on the power generation condition test, pumping condition test and working condition conversion test of Shen-1 Unit 1. The unit has the conditions to enter the examination and test operation phase.
From the beginning of the first pass to the end of all the tests, the dynamic debugging of the first unit took less than a month, and it succeeded in one pass and was successfully connected to the grid. All the conditions were converted successfully, 220kv outlet and zero trip, and the main mechanical and electrical equipment were damaged , The test report once passed the expert group acceptance, the debugging result is superior to many pumped storage projects in the industry.
Deep savings on the 1st machine debugging site
On November 16, 2017, the unit entered the 15-day assessment test run, during which the unit was stable and reliable, and all operating parameters were normal.
November 30, 2017, the unit test run successfully concluded, officially entered the commercial operation stage.
Deep water tanker force support, a 篙 loose back spirited search. Deep savings on the 1st unit did not slow down the commissioning of the successful operation of the team's pace, the current deep savings on the 2nd unit has begun debugging branch in January 2018 start debugging, Unit 4 is installing.
'There is no mountain higher than man, there is no longer way than foot.' 'Dongfang Electric Pumped Storage Commission team to overcome difficulties, did not forget the initial mind, bearing in mind the mission, completed from the' supervisor 'to' dominant 'gorgeous turn around, Help Dongfang Electric innovation-driven, second start-up, 'to build China's GE' goal.