Valves are widely used in various power generation facilities (such as thermal power, nuclear power, hydropower, and renewable energy) and power transmission and distribution systems in the power industry. They need to adapt to challenges such as high temperature and high pressure, corrosive media, high-frequency operation, and reliability in extreme environments.

 

Applications of valves in the power industry

 

I. Thermal power generation (coal/gas-fired)

a. Boiler system

- Applications: main steam pipeline, feed water control, flue gas desulfurization (FGD).

 

b.Steam turbine system

- Applications: steam flow regulation, emergency shut-off.

 

c.Cooling water circulation

- Applications: condenser circulating water control, chemical water treatment.

 

II. Nuclear power

a.Primary circuit system

- Applications: reactor coolant pressure control, emergency core cooling (ECCS).

 

b.Secondary circuit and auxiliary system

- Applications: steam generator feed water, spent fuel pool cooling.

 

c.Nuclear waste treatment

- Applications: radioactive waste liquid transportation, solidification packaging.

 

III. Hydropower and pumped storage

a.Turbine control

- Applications: water inlet flow regulation, emergency shutdown.

 

b.Dam drainage and flood discharge

- Applications: gate opening and closing control, pressure pipe pressure relief.

 

c.Pumped storage unit

- Applications: water pump operating mode switching, energy storage head control.

 

IV. Renewable energy

a.Solar thermal power generation

- Applications: molten salt heat transfer system.

 

b.Geothermal power generation

- Applications: geothermal wellhead control, steam separation.

 

-c.Hydrogen energy storage and transportation

- Applications: water electrolysis hydrogen production, hydrogen compression and storage.

 

V. Power transmission and distribution and energy storage

a.Compressed air energy storage (CAES)

- Applications: air compression/release control, gas tank management.

 

b.Battery thermal management (liquid cooling system)

- Applications: coolant circulation, temperature balance control.