MHPS Successfully Completes Testing of 74 Inch Last Stage Blade
2017年9月15日 - 12:14PM
JCN Newswire (英)
Mitsubishi Hitachi Power Systems, Ltd. (MHPS) has successfully
performed rotational vibration testing of a 74 inch (1,880 mm) last
stage rotating blade (74IN LSB), bringing the blade's development
process to completion. It is the world's longest class blades for
nuclear steam turbines. The 74IN LSB expands MHPS's lineup of steam
turbines, complementing the latest 54IN LSB (1,375mm), enabling the
company to meet diverse customer needs and requirements.
MHPS began development of the 74IN LSB blade type ahead of other
manufacturers, and has already completed various verification
tests, including actual steam load testing. The rotational
vibration test represents the final confirmation step in the blade
development process.
The rotational vibration test uses a full-scale test rotor with a
74IN LSB, operated at nominal rotational speed. This is to verify
the vibratory characteristics of the blades. Testing was performed
at MHPS's high-speed balance testing facility, one of the world's
largest facilities of its kind. The test results confirmed that the
74IN LSB achieved its targeted vibratory characteristics and can be
operated safely.
Steam turbines using the 74IN LSB can be used at 1,200-megawatt
(MW) class nuclear power plants - currently the most popular type
globally - as well as larger nuclear plants exceeding 1,500 MW.
When used in a 1,200 MW class nuclear plant, the 74IN LSB turbine
enables greater power generation, compared to the 54IN LSB turbine,
due to its longer blade length. Also, depending on the conditions
of the plant's location, the number of turbine casings can be
reduced from three (54IN LSB turbine) to just two (74IN LSB
turbine), enabling space savings and simpler plant designs.
Going forward, MHPS will continue to provide safe and dependable
high-quality steam turbines for nuclear power plants as its way of
contributing to ever more stable energy supplies within the global
market, economic development, and easing of environmental
burdens.
http://www.acnnewswire.com/topimg/Low_MHPS91517LSBFacility.jpg
74IN LSB turbine installed in high-speed balance testing
facility
http://www.acnnewswire.com/topimg/Low_MHPS91517LSBHeight.jpg
74IN LSB (Height:1,880 mm)
About Mitsubishi Hitachi Power Systems, Ltd.
Mitsubishi Hitachi Power Systems, Ltd. (MHPS) was formed on
February 1 2014, integrating the thermal power generation systems
businesses of Mitsubishi Heavy Industries, Ltd. (MHI) and Hitachi,
Ltd. in a quest to further enhance their social response
capabilities in all respects. These include the technological
strength to create new products of outstanding quality and
reliability, the comprehensive strength in engineering to oversee
projects in regions across the globe, and finely honed sales and
after-sale servicing capabilities. MHPS aims to come out a winner
in global competition and achieve a solid position as a world
leader in thermal power generation systems and environmental
technologies. For more information, please visit www.mhps.com.
Source: Mitsubishi Hitachi Power Systems, Ltd.
Contact:
Joseph Hood, PR Manager
Mitsubishi Heavy Industries, Ltd.
Email: mhi-pr@mhi.co.jp
Tel: +81-(0)3-6716-2168
Fax: +81-(0)3-6716-5860
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