The strategic cooperation between Taian Ocean Pump (OCEAN Pump) and Weichai Power is centered on “power-pump integrated design” to break through the industry pain points of low matching efficiency and high energy consumption of traditional equipment. Through CFD fluid simulation and power characteristic matching algorithm, 13 sets of standardized power package solutions covering the flow range of 200-8000m³/h were constructed
1. Weichai Power’s core advantages in the dredging field
As a leading enterprise in China’s internal combustion engine industry, Weichai Power has built a full-field power solution covering 12kW-10000kW with 78 years of technological accumulation. In the field of dredging equipment power, its products have three core advantages:
1.1 Ultra-high thermal efficiency
The thermal efficiency of the WP series diesel engine exceeds 53.09%, saving 12% energy compared with the industry average. Taking the GSD600 sand pump operating under typical working conditions as an example, after matching the WP14H/T-2.0 engine, the annual fuel cost of a single device can be saved by 80,000 yuan.
1.2 Adaptability to extreme working conditions
The plateau power recovery technology can reduce the torque loss by 34% under working conditions at an altitude of 5,000 meters, and the success rate of low-temperature start-up at -25℃ is 100%. In the dredging project of Yamdrok Lake in Tibet, this technology ensures that the equipment can run continuously for 1,200 hours without failure in an environment of minus 20℃.
1.3 Ultra-long service life
The bearing pre-deformation technology is used, and the B10 life reaches 2.2 million kilometers. In the Irrawaddy River dredging project in Myanmar, the WP12 series diesel engine achieved a record of 30,000 hours of operation without major repairs.
2. Sharing of practical application experience of dredging equipment
Our cooperation plan with Weichai is not a theoretical data in the laboratory, but a practical configuration verified by hundreds of construction sites. Here are three of the most representative cases:
2.1. Laos Nam Ou River dredging project
2.1.1 On-site situation:
Need to clean up 5 kilometers of river silt
The silt has high viscosity and the sand content exceeds 40%
The power supply on the construction site is unstable
2.1.2 Equipment selection:
Sand pump model: PNS400-35 (processing capacity 500m³/h)
Matching power: Weichai WD10C240-15 diesel engine (176kW)
Auxiliary equipment: DN250 wear-resistant pipe + mobile filter box
2.1.3 Actual effect:
Working 10 hours a day, the dredging volume is stable at 4800m³
The fuel consumption is 18% lower than the Japanese unit used before, which saves 560 yuan in fuel costs per day
When there is a power outage due to heavy rain, the diesel engine directly drives the pump unit without stopping
2.1.4 Feedback from site foreman Wang:
“The most practical thing about this equipment is that it has few faults. The seals are only replaced once in the three months of rainy season, and the maintenance cost has been reduced by half compared to before.”
2.2. Port expansion project in Ho Chi Minh City, Vietnam
2.2.1 Difficulties of the project:
24-hour continuous operation is required
Transportation distance is 1.2 kilometers
Severe seawater corrosion
2.2.2 Equipment configuration:
Main pump: OCEAN ZS800-60 sand pump (processing capacity 3800m³/h)
Power: Weichai WP14H diesel engine (980kW)
Matching: thickened Cr30 wear-resistant impeller + anti-salt spray control cabinet
2.2.3 Operation data:
Continuous operation for 87 days without shutdown, cumulative silt removal volume of 820,000 m³
Average fuel consumption of 195g/kW·h, saving 7% compared to the 210g required by the tender
The service life of the impeller is up to 5200 hours (ordinary impeller is about 3000 hours)
2.2.4 The project chief engineer specifically mentioned:
“This equipment is durable and can work normally when seawater backflows in the rainy season. The anti-corrosion treatment of the electrical cabinet is in place”
3. Real fuel-saving experience
We have sorted out the site data of the past three years and summarized three ways to save fuel:
3.1. Choose the right model
Many customers buy larger models, which are actually the most fuel-efficient when running below 70% load
For a flow of 300m³/h, choose GSD300 with WP7 (155kW)
For a flow of 800m³/h, choose GSD600 with WP10 (220kW)
3.2. Regular maintenance
Operate according to the maintenance manual we provide:
Replace the oil filter every 500 hours
Clean the cooling system every year
3.3. Pipeline optimization
Reducing a 90-degree elbow can save 3-5 liters of oil per hour
It is recommended to use:
Large radius elbow (radius of curvature ≥ 5 times the pipe diameter)
One automatic exhaust valve per kilometer of pipeline
4. Solutions to common problems
Based on feedback from more than 200 construction sites, we have sorted out the solutions to three high-frequency problems:
4.1 Problem 1: The pressure cannot be increased after starting
Inspection steps:
① Confirm that the suction pipe is completely submerged (water depth > 1 meter)
② Open the exhaust valve until water comes out
③ Adjust the diesel engine speed to 1800r/min
4.2 Problem 2: Impeller wears too fast
Solutions:
① Use Cr30 material impeller (extends life by 2 times)
② Install a grille at the suction port (intercept > 80mm stones)
③ Check the liner wear every shift
4.3 Problem 3: Sudden shutdown
Quick diagnosis:
① Check the instrument panel fault code (Weichai ECU can display 32 faults)
② Check the fuel filter (drain every week during the rainy season)
③ Measure the battery voltage (the voltage should be > 24V after shutdown)
5.Summary
The strategic cooperation between Weichai Power and Sino-Ocean Pump Industry marks that China's dredging equipment has achieved a leap from "single equipment supply" to "system solution". The two parties will continue to deepen collaborative innovation in the fields of intelligent control, new energy power, remote operation and maintenance, and provide global customers with more efficient, more environmentally friendly and more economical dredging operation solutions.
