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The first 9HA gas turbine test operation in China! CEEC design and construction
Seetao 2021-02-03 16:13
  • The first 9HA gas turbine designed and built by CEEC in China has been put into trial operation
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Northeast Institute of CEEC designed the 650,000 kW 9HA gas turbine unit of Tianjin Junliang City contracted by Tianjin Power Construction Co., Ltd., which passed 168 hours of trial operation.

The "heart" part of Junliangcheng Phase 6 Power Plant adopts 9HA.01 combustion turbine, which has the highest combustion temperature, maximum power and highest efficiency in the world. It is also the first GE 9HA gas turbine approved for construction and "settling down" in China.

The heart is strong

The gas turbine unit of Junliang City covers an area of only 7,000 square meters, equivalent to the area of an international football field, which is two-thirds smaller than its counterpart. Small footprint, thanks to a strong "heart", namely GE 9HA 0.1 gas turbine.

Less land cover, land cover to save about 14,000 square meters; High power generation efficiency, because the gas turbine using Brown and Rankine two industry "super energy" cycle, power generation efficiency of nearly 63.5%; Under the condition of full load operation, the project can directly reduce the burning of 1 million tons of coal per year, equivalent to planting 2.5 million trees, which is also equivalent to reducing the carbon dioxide emissions of nearly 1.7 million cars in a year. With fast start and stop conditions, and excellent peak regulation ability, the project can be run as a peak regulation power plant, can carry out peak regulation of natural gas; Small water consumption, large heating radiation area: the project water consumption is one third of the general coal-fired units. The heating radiation area is up to 30 million square meters, which can meet the heating needs of 30,000 users.

The first cool

The first is 3D printing applications. The microporous premixed combustion chamber on gas turbine is in charge of combustion efficiency, start - stop time, etc. The microporous combustion chamber is the world's first in the gas turbine using 3 d printing microporous premixed combustion chamber, the original 66 parts improvement into a 3 d printing parts, not only easy to maintain, and smaller hole diameter, spacing is more dense, air and gas which can be more fully mixing, combustion efficiency is improved, because of inadequate burning may produce pollutants have also been reduced.

The second is the installation scheme innovation. The project optimization installation plan is the first to "pretend" that the coupling disc moves. A set of locks is made by using the directional pulley set. The locks rotate along the outer circle of the coupling backrest wheel, and then add a dial meter after the limit.

There are also equipment hoisting innovations. The 390t gas turbine is the heaviest in the industry. The site is small and the space is limited. The unloading from the port to the delivery site is restricted by height, speed and weight, and every step is very difficult. The hoisting team adopted the hydraulic jack hoisting process and carried the gas turbine home stably.

The data gathered

First of all, the system information interconnection of the whole plant. Power plant equipment life cycle management, unit one key start and stop. The unit intelligent operation optimization, intelligent security, control integration and other practical functions, the sixth phase of the military grain city project to achieve data aggregation, to create a high-end industrial information integration of the world's first-class digital intelligent power plant.

The second is lean value calculation. Lean energy conservation and emission reduction, creating huge economic benefits. Compared with 9FB gas turbine, this project can reduce the electricity cost by 4% in the whole life cycle, which is equivalent to saving the fuel cost of 50 million yuan per machine per year.

There are also modular data statistics. Adopting the modular installation concept, the unit space utilization rate is greatly increased. Compared with previous similar thermal power units, the installation of valves is reduced by 98%, on-site welding is reduced by 54%, electrical terminals are reduced by 50%, piping system interface is reduced by 41%, the installation and maintenance is more convenient, only the top cover can be disassembled to complete, saving a lot of time and energy. (Reprinted please indicate Jiandao www.seetao.com) Editor/Dong Xiyuan of the mechanical column of Jiandao


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