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BoilersFans and Blowers

Overview

MHPS fans and blowers achieve high reliability and excellent operational performance backed up by extensive experience and the latest design and manufacturing technologies.

World-class Axial Fans with Variable Rotor Blade Pitch

MHPS fans are used in a wide range of fields, from power plants to exhaust desulfurization equipment, blast furnaces, sintering furnaces and tunnel ventilation.

We achieve high levels of reliability through experience based on a long track record and designs based on the latest research data. MHPS has gained world renown for its technological capabilities and reliability.

We have also established a well-prepared service structure to respond to customer requests.

In addition, MHPS maintains plant operating facilities where it can run actual fans, as well as balance testing equipment. This ensures that we provide products with verified performance and quality.

Plant Operating Facilities
Balance Testing Equipment

Track Record of Deliveries

Axial fans with variable rotor blades At least 500 units
Centrifugal fans At least 1,500 units
Multistage axial blowers and compressors At least 150 units

History

1945 Commenced research and development into axial-flow equipment
1954 Manufactured gas turbine compressor for Transport Ministry vessel Hokuto Maru
(First gas turbine unit from Mitsubishi Heavy Industries)
1958 Manufactured and delivered axial-flow compressor for blast furnace (first blast furnace air blower unit produced by Mitsubishi Heavy Industries)
Axial-flow Compressor for Blast Furnace
1965 Manufactured axial fan with variable rotor blades for commercial boiler
(First axial fan with variable rotor blades for boilers produced by Mitsubishi Heavy Industries)
1974 Began production of centrifugal fans
1975 Began research, development and production of centrifugal compressors
1976 Established CE-MHI Fan Co. with US-based CE (up to 1988)
(Company manufacturing and selling axial-flow blowers for power plant boilers)
1979 Began licensing variable rotor blade axial fan technologies to Spanish company DURO-FELGUERA (up to 1987)
1979 Developed Japan' s first submarine masker compressor
Developed gas extraction compressor for geothermal power plants
1985 Developed Mitsubishi Heavy Industries' first steam compressor
1988 Began licensing variable rotor blade axial fan technology to Chinese-based Wuhan Blower Co., Ltd.
1991 Manufactured wind tunnel axial-flow compressors (blowers) for US Department of Defense
Wind Tunnel Axial-flow Blower
1993 Manufactured pressurized wind tunnel axial-flow compressors (blowers) for US-based NASA
2000 Manufactured flue gas desulfurization equipment for large-scale thermal power plant (highly corrosive environment) and FRP variable rotor blade axial fan
Variable-blade Axial Fan Using FRP Rotor Blades
2003 Manufactured helium axial-flow compressor for atomic energy agency
2005 Manufactured recirculating blowers for fuel cell (solid oxide fuel cell - SOFC) power generating equipment
Blower for Fuel Cell Power Generating Equipment
2014 Manufactured 15MW class variable rotor blade axial fans
Variable Rotor Blade Axial Fans for Large-scale Thermal Power Plants

Research and Development

MHPS is actively pursuing the design and development of turbo machines for new power generating systems (thermal, nuclear and fuel cell-based).

We are also consistently focused on realizing further reliability gains and improved efficiency to meet the needs of customers using our existing products. The following are some examples of our research and development efforts.

Development of FRP Rotor Blades

Fiber-reinforced plastic (FRP) rotor blades are made from a composite material where thermoset plastic is reinforced with fiber glass. These rotor blades offer the following advantages over metallic blades.

  • Will not rust or decay
  • Lightweight (Roughly 1/4th the weight of carbon steel)
  • High specific strength (Around three times that of carbon steel)
  • Excellent vibration absorption and shock absorption properties

To date, FRP rotor blades have only been developed for commercial use in jet engine compressor blades for aircrafts (carbon fiber-reinforced type), cooling tower fans and wind turbines (fiber glass-reinforced type), but based on the rotor blades used in wind turbines, MHPS has pursued innovation in structure, materials and forming methods to complete the development of FRP rotor blades that boast high strength and reliability.

Services and Proposals for Improved Energy Savings

MHPS has established a reliable service structure to ensure that delivered fans and blowers arrive in a healthy state and demonstrate adequate performance, and is committed to responding to customer requests. We help customers boost productivity and save more energy by employing the latest technologies to increase the capacity of fans and blowers that were delivered in the past.

Example of Energy-saving Improvements for Existing Fans

Switching Existing Centrifugal Fans to Axial Flow Fans

  • By replacing existing centrifugal fans with variable rotor blade axial fans that feature higher efficiency under partial loading, MHPS contributes to energy saving measures at plants.
  • Improvements to partial loading efficiency can be expected to have energy-saving effects of up to 40%.

Additional Installation of Fluid Coupling in Existing Centrifugal Fans

  • By setting up a fluid coupling between an existing centrifugal fan and the driving motor and achieving operation with control over fan RPM, optimum fan operation based on plant load changes is possible, along with the prospect of energy-saving effects.
  • Improvements to partial loading efficiency can be expected to have energy-saving effects of up to 40%.

Modifications to Multistage Axial Compressors (Blowers)

  • MHPS has a track record of making modifications to compressors in line with customer needs, such as switching between rotating and stationary blades in a compressor to cater to increases or decreases in plant production.

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