网络优化资料：

What factors will affect the magnetic induction intensity and current of the solenoid valve coil?

B=F/IL=F/qv=Φ/S.

Two F: Lorentz force or Ampere force;

q: the number of charges;

v: measuring speed;

Five E: electric field intensity;

Φ(=ΔBS or BΔS, B is the magnetic induction intensity, S is the area): flux;

Seven S: area;

8. L: The length of the conductor in the magnetic field.

Obviously, the core that affects the magnetic induction intensity of the coil is the magnetic flux and the coil area. The greater the magnetic flux per unit area of the two-way solenoid valve, the greater the magnetic induction intensity (this article is originally created by Shanghai Ruwei Valve-Solenoid Valve Manufacturer, reprinting or reprinting is declined).

There are two situations to distinguish between insufficient suction power of the solenoid valve. One is that the suction power is insufficient at the beginning, and it is always popping, but there is no "pop". The other is that the suction power of the solenoid valve is insufficient. After using for a period of time, the main The performance is that the solenoid valve is still energized but the valve has been closed or half-closed. Another type of operating conditions that are more common in solenoid valves and steam solenoid valves at high temperatures.

Through the above analysis, we know that the core that affects the suction is the magnetic induction intensity of the coil. The voltage standard is AC220V or DC24V. A large current will affect the heat generation. Now solenoid valves are networked for system control, and the current requirements are smaller. Good, the length of L is basically fixed, and the included angle is also the maximum of 90°, so the core is the magnetic induction intensity of B, that is to say, if the solenoid valve core is not affected by external force, the water heater solenoid valve cannot be opened normally when it is energized. , Is considered as insufficient suction, the main reason is that the magnetic induction intensity is not enough, the coil needs to be replaced, and the larger coil is clamped.

In the second case, after the solenoid valve is energized for a period of time, the suction power is insufficient. This situation is more common in high temperature conditions. Why? Because the temperature of the medium is too high, and the coil itself is energized to generate heat, the heat loss per unit time is less than the heat generated, which causes the solenoid valve coil temperature to continue to rise, and the temperature rise causes the resistance to rise, the current to drop, and the suction to drop. Therefore, The core influencing factor of this situation is the current drop.