With the acceleration of urbanization, the stability and safety of residential water supply systems have attracted more and more attention. As the main water supply for residents, the pressure stability of the tap water pipeline network is of great significance to ensure the normal water supply of residents. However, in actual operation, the pressure of the tap water network is often high and unstable, which brings certain problems to residents' water use. In order to solve this problem, pressure reducing valves are widely used in household tap water supply systems, which play a role in reducing and stabilizing tap water pressure. Among them, the pressure balanced pressure reducing regulator valve is an important pressure reducing equipment, which has significant advantages and application value.
1. The basic principle of pressure balanced pressure reducing and stabilizing valve.
Pressure-balanced pressure reducing regulators, such as YG-2-1-T water pressure reducing valves, belong to spring diaphragm pressure reducing valves. The core principle is to use the equal action and reaction force in mechanics and the linear relationship between the spring deformation and the reaction force to achieve the effect of decompression and stabilization. Specifically, there is a specific relationship between the valve inlet pressure (p1), the spring pressure (p2) and the valve outlet pressure (p3), i.e., p1 p3 = p2. When the inlet pressure P1 changes, the outlet pressure P3 remains stable and is not affected by the inlet pressure fluctuation.
Second, the working state of the pressure balanced pressure reducing stabilizer valve.
Pressure-balanced regulators have two different operating states: static pressure reduction and dynamic pressure reduction. In the state of stabilisation and static pressure, the valve is closed and the outlet pressure remains stable. When the outlet pressure is lower than the set value, the spring is extended, the ring port is opened, and the inlet pressure is supplemented to the outlet to achieve the effect of pressure reduction and stabilization. In the state of stabilizing the dynamic pressure, the valve works through the principle of dynamic orifice, so that the outlet pressure remains stable in the dynamic change.
3. Application advantages of pressure balanced pressure reducing and stabilizing valves.
Pressure-balanced pressure reducing regulators have a wide range of application advantages in residential water supply systems. First of all, it protects the building water installation from excessive water pressure and prolongs the service life of the equipment. Secondly, because the outlet pressure is not affected by the change of the inlet pressure, it is conducive to the working stability of the water device. In addition, pressure-balanced regulators are characterized by high flow rates and low head loss, which can effectively improve the efficiency of water supply systems.
Fourth, the parameter adjustment of pressure balanced pressure reducing and stabilizing valve.
In practice, the spring prestress pressure p can be set by adjusting the compression spring screw, and thus the valve outlet pressure p3 can be adjusted. When the outlet pressure P3 is lower than the set value, the spring extension degree increases, and the flow area of the ring increases. At the same time, the (p1-p3) value increases, and the flow rate f increases. This makes it possible to adjust the outlet pressure according to the actual demand, achieving more precise pressure reduction and stabilization.
V. Conclusions and prospects.
In summary, the pressure balanced pressure reducing regulator valve has important application value in the residential water supply system. Through an in-depth understanding of its fundamentals and operating conditions, we can better understand and apply this device. In the future, with the continuous progress of science and technology and the continuous improvement of the water supply system, it is believed that the pressure balanced pressure reducing regulator will play a more important role and provide residents with a more stable and safe water environment.