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What is the description of the impact digital valve governor?
The impact digital valve governor is a new type of governor developed specifically for impact hydro-generator sets. The digital valve mechanical hydraulic servo system is equipped with an electric control part to form an impact digital valve governor.
In general, the current impact governor adopts the most advanced direct connection adjustment mode, without the association mechanism, the governor directly controls the needle relay to adjust the unit frequency and load, and the deflector does not participate in the adjustment function. Today's focus:
Only when the unit speed suddenly increases by 10% (this value can be arbitrarily set), the deflector quickly inputs and cuts off the jet; when the speed is lower than the set value, the deflector returns to the initial position.
For multi-nozzle impact generator sets, the injection and withdrawal of the needle are automatically controlled by the electrical control section based on the load and the needle position. Depending on the number of nozzles, one or several sets of digital valve follower systems are used to control one or several sets of needle relays. One or several sets of needle relays can be fully or automatically operated at the same time, or according to the user. It is required to arbitrarily combine its operation mode. Automatic and manual operation can smoothly switch to each other.
The governor is equipped with hardware and software that interfaces with the computer monitoring system. High-performance and high-quality imported original electrical components, high standard configuration, low oil quality requirements, can fully guarantee the power station to achieve unattended (or less people on duty) requirements.
Function and characteristics
1. Separate control of nozzle and deflector by independent hydraulic control circuit
2. No lever, improve the accuracy of the speed control system
3. With fault lock function
4. Adapt to multi-nozzle control system
5. Working oil pressure: 2.5/4.0/6.3MPa
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