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The hidden trouble of electric heater "dry burning"

2017-08-04 14:05:42 China Heatle electric co., Ltd Read

"Dry burning" refers to the heating state of the water tank without water or water to a certain amount.

Dry burning is not a set work state, it is the system operation accident, that is, the failure state.

The continuation of this state will lead to more serious consequences.


Currently, electric heaters in the market are usually equipped with various temperature controllers or thermal protectors.

This kind of fitting can make the heated water break the circuit and stop heating after the test point temperature reaches the set value.

The device will also automatically close when the water temperature of the test point is reduced to the lower limit.

When the electric heater is "dry" in the water tank, the heat heat generated by the electric heater is transmitted to the water tank joint repeatedly, which will damage the sealing ring (pad), insulation layer and water tank.

Compared with most of the "hot" type electric heating, a heating element with the sealing face die casting for the integration of the whole cast aluminum electric heater in the dry with the integration of a water tank temperature rise faster, higher, and to accelerate the aging sealing ring, faster more harmful.


A water heater tank can be plugged into a water heater.

The long-term application of the water-storage type electric water heater has formed the perfect production technology management system and the implementation standard.

In addition to the thermostat that should be equipped with automatic reset, this kind of storage water heater must be equipped with a non-automatic reset device for dry burning.

When heated water is less than a certain amount of water in the water heater, this non-automatic reset device will be forced to disconnect the circuit and terminate the heating, which will prevent the serious consequences of the dry-burning accident.


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