4, Conclusion

     First of all, to improve the reliability of the equipment to ensure a safe shutdown. Secondly, reducing the labor intensity of workers to run to reduce the maintenance workload. Two units on duty to reduce the four, the annual savings of about 80,000 yuan.

     In addition, the brass ball valve in the absence (less people) on duty or isolated grid power plant power plant when the plant lost power when the heavy hammer release can automatically shut down without having to back-up DC power to operate.

     In a number of power plant design, if the unit is scheduled to GD2 and hydraulic structures under the conditions of deployment can not find a suitable guide vane closing time to ensure that the unit rate of appreciation and the appreciation pressure on the standards for no more than the allowable values at this time can be taken to speed weight bis-style brass check valve closed, the first in order to reduce the speed quickly increased, the latter can reduce the water pressure slowly increased. This method is reliable than setting artificial resistance than economic surge tank setup.