Hydraulic breakers are essential tools in construction and demolition, designed to deliver powerful impact to break concrete, rock and other hard materials. One of the key ingredients in improving hydraulic breaker performance is nitrogen. Understanding why a hydraulic breaker needs nitrogen and how to charge it is critical to maintaining optimal functionality and extending the life of your equipment.
The role of nitrogen in hydraulic breaker
The working principle of a hydraulic breaker is to convert hydraulic energy into kinetic energy. Hydraulic oil powers the piston, which strikes the tool, providing the force needed to break the material. However, using nitrogen can significantly increase the efficiency of the process.
What is the recommended amount of nitrogen to add?
Many excavator operators are concerned about the ideal amount of ammonia. As more ammonia goes in, the accumulator pressure increases. The optimal operating pressure of the accumulator varies based on the hydraulic breaker model and external factors. Generally, it should hover around 1.4-1.6 MPa (approximately 14-16 kg), but this can vary.
Here are the instructions for charging nitrogen:
1. Connect the pressure gauge to the three-way valve and turn the valve handle counterclockwise.
2. Connect the hose to the nitrogen cylinder.
3. Remove the screw plug from the circuit breaker, and then install the three-way valve on the charging valve of the cylinder to ensure that the O-ring is in place.
4. Connect the other end of the hose to the three-way valve.
5. Turn the ammonia valve counterclockwise to release ammonia (N2). Slowly turn the three-way valve handle clockwise to achieve the specified set pressure.
6. Turn the three-way valve counterclockwise to close, then turn the valve handle on the nitrogen bottle clockwise.
7. After removing the hose from the three-way valve, make sure the valve is closed.
8. Turn the three-way valve handle clockwise to recheck the cylinder pressure.
9. Remove the hose from the three-way valve.
10. Securely install the three-way valve on the charging valve.
11. When rotating the three-way valve handle clockwise, the pressure value in the cylinder will be displayed on the pressure gauge.
12. If the ammonia pressure is low, repeat steps 1 to 8 until the specified pressure is reached.
13. If the pressure is too high, slowly turn the regulator on the three-way valve counterclockwise to discharge nitrogen from the cylinder. Once the pressure reaches the appropriate level, turn it clockwise. High pressure may cause the hydraulic breaker to malfunction. Make sure the pressure stays within the specified range and that the O-ring on the three-way valve is properly installed.
14. Follow the “Turn Left | Turn Right” instructions as needed.
Important note: Before starting operation, please ensure that the newly installed or repaired wave voltage circuit breaker is charged with ammonia gas and maintains a pressure of 2.5, ±0.5MPa. If the hydraulic circuit breaker is inactive for an extended period of time, it is critical to release the ammonia and seal the oil inlet and outlet ports. Avoid storing it in high temperature conditions or environments below -20 degrees Celsius.
Therefore, not enough nitrogen or too much nitrogen can hinder its normal function. When charging gas, it is crucial to use a pressure gauge to adjust the accumulated pressure within the optimal range. Adjustment of the actual working conditions not only protects the components, but also improves overall work efficiency.
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Post time: Oct-24-2024