Circulating cooling water pressure recovery power generation device and method

By implementing a real-time monitoring and computer-controlled pressure and flow waste strategy, the turbine shutdown process was optimized, solving the system instability and water hammer problems caused by turbine runaway in the circulating cooling water residual pressure power generation device, and achieving efficient recovery of residual pressure energy and improved system stability.

CN116292038BActive Publication Date: 2026-06-09XIAN GERUI ENERGY & POWER TECH CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAN GERUI ENERGY & POWER TECH CO LTD
Filing Date
2023-02-24
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In circulating cooling water residual pressure power generation units, when the turbine malfunctions and runs away, the rotor and stator are prone to collision accidents, which can lead to system instability. Furthermore, improper control of the control valves may cause water hammer problems, affecting the stability of system operation.

Method used

Pressure and flow sensors are used to monitor cooling water parameters in real time. Combined with a computer-controlled pressure and flow reduction joint regulation strategy, the turbine shutdown process is optimized by linearly opening the first control valve and linearly closing the second control valve, and the residual pressure energy is converted by the asynchronous generator.

Benefits of technology

Without affecting the operation of the water pump and heat exchanger, the system maximizes the recovery of residual pressure energy, solves the water hammer problem during turbine runaway shutdown, and improves the system's operational stability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116292038B_ABST
    Figure CN116292038B_ABST
Patent Text Reader

Abstract

The application discloses a circulating cooling water excess pressure power generation device and method, which comprises an upper tower pipeline, a pressure sensor and a flow sensor are arranged on the inner side of the upper tower pipeline, a water turbine is arranged on one side of the upper tower pipeline, the water turbine is communicated with the upper tower pipeline through pipelines at both ends, the water turbine is connected with a generator through a line, an upper tower valve and a first control valve are arranged on the upper tower pipeline, the upper tower valve is located at one end of the upper tower pipeline, the first control valve is located between the water turbine and the two communication positions of the upper tower pipeline, a maintenance valve is arranged on the pipeline communicated with the upper tower pipeline at one end of the water turbine, a second control valve is arranged on the pipeline communicated with the upper tower pipeline at the other end of the water turbine, and the second control valve is close to the upper tower valve. The application reasonably controls the opening and closing of the valve, recovers energy by using the water turbine, solves the water hammer problem caused by improper operation in the process of the water turbine accident runaway and runaway shutdown, and improves the operation stability of the circulating cooling water system coupled with the water turbine.
Need to check novelty before this filing date? Find Prior Art