Clients & Cases
-
Magnetic Coupling Application Case of Zibo Thermal Power Plant
Previously, the fixed--range hydraulic couplers were applied in the coal conveyor belt in Huadian Zibo Thermal Power Co., Ltd. Yet the fixed--range hydraulic coupler has the problems of low precision, poor linearity, slow response, large starting current, large size, easy oil leakage, fuel injection, complicated maintenance and high cost, thus incapable of meeting the needs of improving the overall automation level and reducing the cost of the equipment.
Learn more -
Magnetic coupler application case in Lingwu Air-cooling Island
Since operation of the air-cooling units in Lingwu Power Plant, the air-cooling island has been suffering from problems of great vibration of fans, motors and bridges, with vibration speed reaching 30mm/s, which has caused broken gear teeth and leakage of the fan gear box, bearing runoff of the motor bearing seat, damaged bearings and broken rotor bars; wear and oil leakage of the lubricating oil pump; and wear of couplers. More seriously, long-term strong vibration will cause metal fatigue in the air-cooling island bridge and thus easy to cause major safety accidents. From 2011 when #3 & 4 units were put into operation to August, 2014, the second-phase air-cooling island had damaged gear shafts in more than 80 air-cooling fan gearbox and damage of multiple motor bearings and couplers, resulting in direct economic loss of more than six million yuan.
Learn more -
BCT101 system application case in Zouxian County Power Plant
In Zouxian County Power Plant, the steam turbine in the #8 unit is ultra-supercritical, once reheating, single-shaft, double back pressure, four-cylinder four-steam exhaust port condensing steam 1000MW steam turbine (model N1000-25.0/600/600). In overhaul of the unit, BCT101 system of BKC was installed.
Learn more -
Feed pump overhaul of Donghua Power Plant
Baotou Donghua Thermal Power Co., Ltd. is located in Baotou, Inner Mongolia, equipped with 2×300MW steam turbine generator units, with each unit equipped with three 50% rated-capacity electric feed pumps driven by hydraulic couplers. The feed pump units are installed with the booster pump driven coaxially at a constant speed by the feed pump motor. Three electric feed pumps are available, with two in service and one as backup.
Learn more -
Maintenance of hydraulic coupler in Mengjin Power Plant
In Shenhua Guohua Mengjin Power Generation Co., Ltd., the first phase of the 2×600MW supercritical coal-fired units officially started construction in April 2008. #1&2 units started commercial operation on March 1, 2011 and August 27, 2011, respectively, after 168 hours of trial operation. Since its operation from 2011, the #2 unit has been in good operation condition.
Learn more -
#4 boiler axial flow fan failure in Anshun Power Plant
The #4 boiler of Anshun Power Plant is DG1025/18.2--Ⅱ10 type W-flame boiler produced with Dongfang-Foster Wheeler technologies. Each boiler is equipped with two blowers. The #4 boiler was put into production in 2003 and has been running for near 11 years. During the operation process, the blower had many faults.
Learn more -
Large vibration of oxidation air blowers in a plant of Henan Oilfield
The Roots blower used in the oil blending workshop in a plant in Henan Oilfield, with the model SD36*28, is a product produced by Changsha Blower Factory in 1995 and has been used for more than 10 years. In recent years, it had such faults as great vibration, skeleton seal leakage, difficult barring, impact of rotor, reduced outlet wind pressure and reduced air volume.
Learn more -
Retrofit of steam pump sealing water system of Fujian Kemen Power Plant
In Fujian Kemen Power Plant the #2 small steam turbine processes filter water of the small steam turbine lubricating oil tank, with the amount of filtered water exceeding 500ml. The oil contains a large amount of water, causing the emulsification of the small steam turbine lubricating oil, thereby to cause poor lubrication of the small steam turbine and high bearing temperature, and possibly to cause accidents of bush burning or shutdown.
Learn more -
BCT101 system application case in Datong Power Plant
#8 unit of Datong Power Plant is a subcritical, once reheating, four-cylinder four-steam exhaust port, single shaft, direct air condensing steam 600MW steam turbine, with the model NZK600-16.7/538/538, and vibration monitoring and protection system (TSI) being Bentley 3500 rotating mechanical monitoring device. The shaft vibration of the #2 bearing of the medium/high-pressure cylinder rotor of the unit was always high, reaching 150μm. During the overhaul, the load of the high-pressure rotor bearing was adjusted according to our expert's opinion, specifically, the #1 bearing was lowered by 0.10 mm while the #2 bearing raised by 0.10 mm. And our company's BCT101 system was installed. At the same time, the low pressure rotor was replaced as planned.
Learn more
