What precautions should be taken when using liquid electric heaters

What precautions should be taken when using liquid electric heaters

Firstly, it is important to maintain the cleanliness and hygiene of the equipment

When using a liquid heater, it is natural to heat various liquid media. Therefore, hygiene issues must be paid attention to during use. There will naturally be some scale, oil and other substances on the inner wall of the equipment after long-term use. At this time, it is necessary to clean it in a timely manner before use, because direct use not only affects the heating effect, but also shortens the service life of the equipment.

Secondly, avoid dry burning

In the use of equipment, it is necessary to avoid dry burning (when the power is plugged in, there is no heating medium inside the equipment or it is not full), as this can affect the normal use of the equipment and seriously endanger the safety of the user. Therefore, to avoid this situation, it is recommended to measure the volume of the heating liquid before use, which is more secure.

Set the voltage in advance

When using the device, the voltage should not be too high at the beginning of operation. The voltage should be slightly lower than the rated voltage to allow the device to adapt to the voltage. Then, gradually increase the voltage, but do not exceed the rated voltage, to ensure even heating.

Then, regularly inspect the parts of the equipment

Due to the fact that liquid electric heaters usually operate for long periods of time, some internal parts are prone to loosening or damage after a certain period of time. Therefore, staff need to regularly inspect them, so that they can not only be used normally, but also ensure the service life of the equipment.

Key points for using explosion-proof electric heaters

1. Explosion proof electric heaters must be used in conjunction with CNG control cabinets to achieve linkage control.

2. The working voltage shall not exceed 1.0 times its rated voltage, and the inner and outer shells shall be effectively grounded.

3. Working environment: 0 ℃ -340 ℃, without corrosive gases.

4. Turn on the power first, and the liquid level alarm will display a red light and sound an alarm. At this time, add antifreeze until the alarm is cleared, and then continue to add a liquid level of about 10mm high. Do not fill it up all at once, as this will cause the antifreeze to expand after heating and overflow.

5. Regularly inspect the surface of the electric heating tube. If there is any carbonization or dirt, it must be removed before use. At the same time, check the simplified Chinese characters, corrosion level, whether containers and electric heating tubes need to be replaced every year

6. The components should be stored in a ventilated and dry place.

7. The wires inside the junction box need to be covered with yellow wax tubes.

8. Carefully inspect the electrical and instrument control systems, as well as the wiring, that match the electric heater, to ensure that they are in good condition and can be put into use.

9. Regularly observe whether the equipment, electrical, instrumentation, and control system are working properly.

10. Always observe whether the three-phase current is balanced.

11. Explosion proof electric heaters can be installed indoors. If they need to be installed outdoors, rain and snow blocking facilities should be installed

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