1. The principle and use of static balance valve
A static balancing valve is a type of valve used in hydraulic systems to accurately control the flow of water through a pipeline. It can realize the automatic adjustment of the flow rate according to the balance characteristics of the internal structure of the valve, ensure that the pressure of the system is constant in the working state, and avoid the system pressure fluctuation caused by the change of flow. How Static Balancing Valves Work:
Principles of fluid dynamics
The balance valve is designed with one or more special throttling devices, such as butterfly plates, poppet valves, etc., which can adjust the opening according to the pressure difference of the system, so as to control the flow of water through the valve.
Principle of torque balance
When the valve is opened, the fluid torque on the disc is balanced with the operating torque, allowing the valve to remain in a stable opening position, thus maintaining a stable flow rate.
Second, the use of static balance valves:
This type of valve is widely used in applications where precise flow control is required, and here are some typical applications:
heating and cooling systems
In heating and air conditioning systems, static balancing valves can be used to regulate the flow of water and ensure that the correct flow rate is obtained for each branch pipe to achieve energy saving and indoor temperature control.
Industrial process control
In industries such as the chemical, pharmaceutical, and food and beverage industries, precise control of fluid flow is required to ensure process stability and product quality. Static balancing valves are able to meet these requirements.
Water treatment system
In water treatment and distribution systems, static balancing valves are used to control the flow of water, ensure that chemicals are added proportionally to the water treatment facility, and ensure that the water supply pressure is stable.
Fire protection system
In fire protection systems, static balancing valves are used to control the flow of water from fire pumps to different hydrant or sprinkler systems, ensuring that sufficient water pressure and water are available in all circumstances.
Ships and offshore platforms
In the hydraulic system of ships and offshore platforms, static balancing valves are used to precisely control the flow of hydraulic oil to ensure that the ship's operating system and deck machinery can work properly.
Fuel system
In the fuel systems of automobiles and other vehicles, static balancing valves can be used to control fuel flow to optimize engine performance and fuel economy.
Solar water heating system
In solar water heating systems, static balancing valves are used to regulate the circulating flow of hot water to keep the hot water temperature stable.
3. Adjustment of the use of static balance valve
The design and use of static balancing valves should comply with the corresponding national and industry standards to ensure that they are safe, reliable, efficient and energy-efficient. In the application, it is also necessary to consider the nature of the medium, operating temperature, pressure, and the requirements of the system to select the appropriate type of static balancing valve.
Installation location
It is often installed in the water supply or hot water network of buildings, especially where precise pressure control is required, such as high-rise buildings, large venues, etc.
Adjust performance
By rotating the stem or by electrically or pneumatically actuating, the opening of the valve can be easily adjusted to achieve precise control of the flow.
Applicable media
It is mainly used for the control of single-phase fluids such as clean water and hot water, and is not suitable for media containing particles or large viscosity.
Maintenance
The valve should be regularly checked for leakage and whether it rotates flexibly to ensure that it is working properly. During installation and operation, it is necessary to ensure that the pressure at the inlet and outlet of the valve is balanced to avoid damage to the valve due to pressure fluctuations.
Static balancing valve plays a vital role in the tap water system of modern buildings, which can not only improve the operating efficiency of the system, but also ensure the stability of water pressure and provide users with a comfortable experience. At the same time, its high efficiency and precise regulation characteristics also help to save water resources, in line with the national requirements for energy conservation and emission reduction. When selecting and installing static balance valves, it is necessary to strictly follow the relevant standards and specifications to ensure the safe and reliable operation of the valves. Here are the general adjustment steps:
1.Close all valves in front of the static balancing valve that needs to be adjusted, ensuring that the other valves in the piping system are closed.
2.With a flathead screwdriver or adjustment tool, gently rotate the adjusting screw of the static balancing valve so that it rotates counterclockwise to the end.
3.Open all the valves in front of the static balancing valve to allow the water in the piping system to start flowing.
4.Using a Phillips screwdriver or adjustment tool, gently rotate the adjustment screw so that it rotates clockwise until you hear a "click". This indicates that the static balancing valve has been opened.
5.Observe the flow of water in the piping system to ensure that the water flow is smooth and noise-free. If there is an abnormality, the rotation angle of the adjusting screw can be adjusted appropriately until the water flow is stable.
6.After the adjustment is completed, make sure that all valves are closed to avoid affecting the adjustment effect.
Regulating a static balancing valve requires a certain amount of experience and skill, and if not properly adjusted, it can lead to system instability or noise. At the same time, it is necessary to pay attention to avoid accidents such as water splashing or scalding during the adjustment process.