Principle:
The working principle of electromagnetic heater is: 220V or 380V alternating current is rectified and converted into direct current, then the direct current is filtered, and then the direct current is converted into alternating current through IGBT or SCR, and high-frequency magnetic lines of force are generated in the induction coil, which is the eddy current generated on the surface of the conductor workpiece in the induction coil, and the liquid is heated through the metal material itself.
Application:
Electromagnetic heaters are used in many fields, such as industrial field, civil field, pharmaceutical and chemical field, food field and so on.
Industrial fields: such as plastic machines, injection molding machines, wire drawing machines, granulators, rubber extruders, vulcanizing machines, cable production extruders, etc.
Pharmaceutical and chemical industry: such as special infusion bags for medicine, plastic equipment production lines, liquid heating and conveying pipelines in chemical industry, etc.
Food industry: for example, the frying machine in the food industry is used to make cooked food and dry goods.
Advantages:
1. High thermal efficiency: At present, among the electric heating equipment on the market, only the electromagnetic heater can convert 98% of the consumed electric energy into heat energy.
2. Rapid temperature rise: Because the resistance of the metal shell of the barrel is very small, a small induced electromotive force can produce a strong eddy current. So that a large amount of Joule heat is generated in the metal.
3. Good environmental protection effect: electromagnetic induction heating can significantly reduce the ambient temperature, and energy saving itself is environmental protection.
4. Long service life: the electromagnetic heating device adopts special coils and semiconductor devices, and the continuous running temperature of the coils is only about 100 degrees, and the average time between failures can reach more than 3 years, saving operating costs.
Installation method: the installation and debugging of electromagnetic heater is relatively simple. The following are the operating steps for installing the electromagnetic heater:
1. Before the renovation, arrange the wiring of the equipment, take photos and mark it (in case of restoration).
2. Determine the installation position of the control panel or electrical cabinet, so as to determine the lead length of the high-temperature conductor. Be sure to communicate with the factory electrician or foreman for confirmation.
3. Remove the coil to measure the power, and the data should be accurate. To determine the installation power. Can be combined with factory electrician, also need to take pictures, keep the original records.
4. Measure the circumference of the barrel, determine the size of thermal insulation cotton and yellow wax plate, and reserve a probe hole for the yellow wax plate. The size of the hole should be accurate, and the length of each temperature zone should be determined and fixed.
5. Determine the length of the high-temperature wire and wind it. Ask for beauty. Clean and tidy. Include spacing control and tightness control. Measure the inductance after winding. Pay attention to the instrument range.
6. wiring. Confirm the ammeter range of the previous circuit breaker, and replace it if it is too small. First, test whether the voltage and current are normal. Solve the problems one by one, and test the whole machine after no problems.
7, sorting, cleaning up the scene. Require cleanliness.
Precautions:
1, the main engine should be dusted regularly, usually once a month, and can be dusted with soft brush or high-pressure air gun to ensure a good ventilation environment inside the instrument.
2. If the use environment is a place with corrosive gas, insulating paint must be sprayed. Or use other insulating and anticorrosive materials.
3. The air temperature should not be higher than 50℃, and inductance is only one of the application parameters. Specifically, it is necessary to measure the working frequency and current, and match the power by increasing or decreasing the number of coil turns.
Description of conversion:
When reforming the electromagnetic heater, it is necessary to follow the steps in the instruction manual of the electromagnetic heater, or ask the company's professionals to install it. The above is the content provided by Shenzhen New Huiyuan Electromagnetic Heater. For more questions, please search for "New Huiyuan Electromagnetic Heater" and enter official website to find the answer you want.