Electric heating steam generator is mainly composed of water supply system, automatic control system, furnace and heating system and safety protection system. The role of the steam generator: The steam generator uses softened water. If it can be preheated, the evaporation capacity can be increased. Water enters the evaporator from the bottom. The water is heated under natural convection to generate steam on the heating surface, which passes through the underwater orifice plate and The steam equalizing orifice plate turns into unsaturated steam and is sent to the steam distribution drum to provide gas for production and domestic use.
Its basic working principle is: through a set of automatic control devices, it ensures that the liquid controller or the high, medium and low electrode probe feedback controls the opening and closing of the water pump, the length of the water supply, and the heating time of the furnace during operation; the pressure relay The set maximum steam pressure will continue to decrease with the continuous output of steam. When it is at low water level (mechanical type) or medium water level (electronic type), the water pump will automatically replenish water. When it reaches the high water level, the water pump will stop replenishing water; with At the same time, the electric heating tube in the furnace continues to heat and continuously generates steam. The pointer pressure gauge on the panel or the upper part of the top instantly displays the steam pressure value. The entire process can be automatically displayed by the indicator light.
What are the advantages of using an electrically heated steam generator?
1. Security
① Leakage protection: When leakage occurs in the steam generator, the power supply will be cut off in time through the leakage circuit breaker to ensure personal safety.
②Water shortage protection: When the steam generator is short of water, the heating tube control circuit is cut off in time to prevent the heating tube from being damaged by dry burning. At the same time, the controller issues a water shortage alarm indication.
③Grounding protection: When the steam generator shell is charged, the leakage current is directed to the earth through the grounding wire to ensure personal safety. Usually, the protective grounding wire should have a good metal connection with the earth. Angle iron and steel pipe buried deep underground are often used as the grounding body. The grounding resistance should not be greater than 4Ω.
④Steam overpressure protection: When the steam pressure of the steam generator exceeds the set upper limit pressure, the safety valve starts and releases steam to reduce the pressure.
⑤Overcurrent protection: When the steam generator is overloaded (voltage is too high), the leakage circuit breaker will automatically open.
⑥Power supply protection: With the help of advanced electronic circuits, reliable power-off protection is performed after detecting overvoltage, undervoltage, phase failure and other fault conditions.
2. Convenience
① After the power supply is introduced into the electric control box, the steam generator will enter (or disengage) fully automatic operation with one button operation.
② The amount of water in the steam generator decreases, and the control system automatically replenishes water from the water tank to the steam generator through the water replenishing pump.
3. Reasonability
In order to use electric energy reasonably and effectively, the heating power is divided into several sections, and the controller automatically cycles through (cuts off). After the user determines the heating power according to actual needs, he only needs to close the corresponding leakage circuit breaker (or press the corresponding switch). The segmented cyclic switching of heating tubes reduces the impact of the steam generator on the power grid during operation.
4. Reliability
①The steam generator body uses argon arc welding as the base, the cover surface is welded by hand, and undergoes strict inspection by X-ray flaw detection.
② The steam generator uses steel, which is selected strictly in accordance with manufacturing standards.
③The accessories used in the steam generator are all high-quality products at home and abroad, and have been tested in furnace trials to ensure the long-term normal operation of the steam generator.
Post time: Oct-25-2023
