What is double pump confluence?
In the fields of construction machinery and hydraulic systems,Combined flow of two pumpsIt is a common technology that combines the output flow of two hydraulic pumps to meet the system's demand for greater flow or higher efficiency. This technology is widely used in excavators, cranes, concrete pump trucks and other equipment, and can significantly improve the performance of the equipment. This article will combine the hot topics and hot content on the entire network in the past 10 days to introduce in detail the working principle, application scenarios and technical advantages of dual-pump confluence.
1. Working principle of double pump confluence
The core of dual-pump merging is to merge the output oil circuits of two independent hydraulic pumps into one oil circuit through the control of hydraulic valves. This design is usually used in the following two situations:
1.Traffic overlay: When the system requires greater flow, the combined flow of the two pumps can superimpose the output flows of the two pumps to meet the demand for high pressure and large flow.
2.Load distribution: Under complex working conditions, the combined flow of two pumps can flexibly distribute the load, avoid overloading of a single pump, and improve system reliability.
The following is a comparison of typical working modes of dual pump confluence:
| working mode | Features | Application scenarios |
|---|---|---|
| work independently | Two pumps drive different actuators respectively | Multi-action compound working conditions |
| Convergence work | The output flows of the two pumps are combined to drive the same actuator | Working conditions requiring large flow or high speed |
2. Application scenarios of dual pump confluence
Double-pump converging technology is widely used in modern construction machinery. The following are typical applications mentioned in hot topics in the past 10 days:
1.excavator: During the movement of the excavator's boom or stick, the combined flow of the two pumps can significantly increase the movement speed and improve work efficiency.
2.concrete pump truck: When pumping concrete, the combined flow of the two pumps can provide higher pumping pressure to ensure continuous delivery of concrete.
3.crane: In the hoisting mechanism of the crane, the combined flow of double pumps can meet the demand for rapid hoisting under large loads.
The following are some of the recent popular construction machinery models that adopt dual-pump converging technology:
| Device type | brand | model | Convergence technical features |
|---|---|---|---|
| excavator | Trinity | SY500H | Intelligent dual-pump confluence saves 15% energy |
| concrete pump truck | Zoomlion | ZLJ5430THB | Two pumps combined, maximum pumping pressure 12MPa |
| crane | XCMG | XCA1200 | The combined flow of two luffing pumps increases the lifting speed by 20%. |
3. Technical advantages of dual-pump confluence
According to recent technical discussions and user feedback, dual-pump combined flow technology has the following significant advantages:
1.Efficiency improvement: Through flow superposition, the system can obtain greater flow without increasing the specifications of a single pump, improving work efficiency.
2.Save energy and reduce consumption: The intelligent control system can automatically switch the confluence mode according to the load demand to avoid energy waste.
3.High reliability: When one pump fails, the system can still rely on another pump to maintain basic work, improving the reliability of the equipment.
The following is a performance comparison between dual-pump combined and traditional single-pump systems:
| Performance indicators | single pump system | Double pump combined system |
|---|---|---|
| maximum flow | 100L/min | 200L/min |
| System efficiency | 75% | 85% |
| Failure response capability | complete shutdown | Can be downgraded |
4. Development Trend of Double-Pump Convergence Technology
Judging from recent industry trends and technical discussions, dual-pump converging technology is developing in the following directions:
1.Intelligent control: Automatic switching of the merging mode is realized through sensors and algorithms to further improve system efficiency.
2.Energy saving and environmental protection: Develop new hydraulic oil and optimize pipeline design to reduce system energy consumption and noise.
3.Modular design: Facilitates equipment maintenance and upgrades and reduces usage costs.
A recent popular discussion on a well-known hydraulic forum showed that more than 65% of engineers believe that intelligence will be the main development direction of dual-pump converging technology in the future.
5. Summary
As an important technology of the hydraulic system, dual-pump confluence provides strong support for the performance improvement of construction machinery through innovative design concepts and advanced control methods. It can be seen from recent application cases and technical discussions that this technology not only continues to optimize in traditional fields, but also shows new development potential in aspects such as intelligence and energy saving. With the advancement of Industry 4.0, dual-pump converging technology will surely play an important role in more fields.
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