The effect of the gear oil pump absorption pressure pulsation is poor

2019 - 12 - 19

in order to better play a role of accumulator for the absorption of fluctuating pressure, accumulator and the head of road branch point connection pipe is shorter, bigger size should be appropriate, and you want to install near the location of the pulse source. Otherwise, it eliminate the effect of the pressure pulsation is poor, sometimes even intensified pressure. Gear oil water pump accumulator release flow stability accumulator filling liquid of instantaneous flow is: (1) a variable, especially in the large capacity and delta p = p2 - Pl range and larger systems, if you want to get is a constant and large instantaneous flow, can adopt the following measures. Between the accumulator and actuators to join flow control element. (2) with a few smaller accumulator capacity in parallel, instead of a large capacity of the accumulator, and several smaller accumulator capacity with different grades of inflation pressure. (3) to minimize the scope of work pressure delta, also can use appropriate volume increase accumulator structures ( Nominal capacity) Methods. (4) arranged in a working cycle has enough charging time, reduce the charging period of internal leakage in other parts of the system, the pressure of the accumulator can quickly and ensure that reaches the p2 and then release energy. Table 7 - 3 for domestic Nxo - L bag type accumulator allows filling flow. Can implement pressurized pressure rise slowly, even can't boost the faulty water pump for the following reasons. 4 (1) charging valve cover gasket See figure 7 14) Not tight or loose in use and the nitrogen gas leakage. (2) charging valve seal with hard rubber mat 5 packing or damaged. (3) gas nitrogen bottles have low air pressure. (4) pneumatic hydraulic circuit. Figure 7 - for example 15 the use of unloading overflow valve 2 charging circuit, when the valve valve core 2 stuck in micro opens, embossed on the accumulator charging - 3 speed is slow, valve valve core 2 stuck open position, the greater the charging - the slower speed. Completely open, can't make 3 energy accumulator booster. The solution to suit the remedy to the case on the basis of the inspection. To the system is a problem with the subsequent oil may also appear this kind of failure.

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