Analyze the necessary knowledge of electromagnetic boiler
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With the further opening of power consumption policies in recent years, local power departments have implemented peak, trough and average time subsection pricing. As a green and environmental friendly electromagnetic boiler, its relevant parameters summarize several requirements stipulated by the state.
1. The power cabinet and control cabinet of electromagnetic boiler shall comply with the provisions of GB / t14048, 1, GB / t5226, 1, GB7251, 1, GB / t3797 and gb50054.
The power cabinet shall be equipped with obvious and effective breaking device, and the control cabinet shall be equipped with emergency stop button. The selected electrical appliances shall meet the requirements of dynamic stability and thermal stability under short-circuit conditions, and the electrical appliances used to disconnect short-circuit current shall meet the on-off capacity under short-circuit conditions.
2. The electromagnetic boiler shall be equipped with indicating instruments for safe operation parameters such as pressure, water level and temperature.
3. The electromagnetic boiler shall be equipped with voltmeter, ammeter and active energy meter or multi rate active energy meter.
4. The electromagnetic boiler shall be equipped with automatic feed water control device.
5. The electromagnetic boiler shall be equipped with automatic control device for grouping operation and grouping withdrawal of its electric heating elements.
6. The electromagnetic boiler shall be equipped with automatic load regulation device. When the steam pressure of the electromagnetic boiler exceeds or is lower than the set value, and the outlet water temperature of the hot water electromagnetic boiler exceeds or is lower than the set value
At the set value, the control device shall be able to automatically reduce or increase the input power of electromagnetic boiler.
7. The electromagnetic boiler with steam (gas) water interface in the boiler shall be equipped with water shortage protection device. When the water level of the electromagnetic boiler is lower than the water shortage protection water level (or the limit low water level), cut off the power supply of the electric heating element, send out an alarm signal, and restart the operation after manual reset.
8. The pressure electromagnetic boiler shall be equipped with overpressure protection device. When the pressure of the electromagnetic boiler exceeds the limit, cut off the power supply of the electric heating element, send out an alarm signal, and restart the operation after manual reset.
9. There shall be reliable electrical connection between the metal shell or possibly charged metal parts of the electromagnetic boiler and its power cabinet and control cabinet and the grounding terminal, and the connection resistance between it and the grounding terminal shall not be greater than 0 or 1 Ω. The grounding terminal shall be of sufficient size to withstand the large grounding current that may be generated. The electromagnetic boiler, its power cabinet and control cabinet shall be marked with obvious grounding symbols on its main grounding terminal.
10. The electromagnetic boiler shall have sufficient electrical withstand voltage strength and be able to withstand the 1-minute withstand voltage test of cold voltage 2000V and hot voltage 1000V and 50Hz without breakdown or flashover.
11. The electromagnetic boiler shall be equipped with overcurrent protection, short circuit protection, leakage protection, overvoltage protection and phase loss protection.
12. The surrounding environment of electromagnetic boiler shall be free of flammable, explosive, corrosive gas and conductive dust, and there shall be no obvious impact and vibration.
13. The independently operated electromagnetic boiler stoker shall hold the corresponding level of Stoker operation certificate and be trained in relevant electrical knowledge and operation requirements.
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