The application of thin film capacitor in electromagnetic heating equipment

The application of thin film capacitor in electromagnetic heating equipment. High frequency alternating current will produce high frequency alternating magnetic field after passing through various inductive loads. When the metal object is in the high frequency alternating magnetic field, the metal molecules will produce numerous small eddy currents. Eddy current makes metal molecules move at high speed and irregularly. Metal molecules collide and rub with each other to produce heat energy, and finally achieve the purpose of converting electric energy into heat energy. Electromagnetic heating equipment is widely used in our work and life. For example, household electromagnetic furnace / electromagnetic tea furnace, commercial electromagnetic furnace, high frequency quenching machine, sealing machine, industrial smelting furnace, etc. Taking three-phase high-power commercial electromagnetic cooker as an example, this paper analyzes the application of film capacitor in electromagnetic heating equipment. The electromagnetic heater uses the principle of electromagnetic induction to convert electric energy into heat energy. Main uses: plastic mechanical electromagnetic heating, electromagnetic heating control board, industrial electromagnetic heating, plastic electromagnetic heating, pelletizer electromagnetic heating, etc. the company has a complete and scientific quality management system. The monthly output can reach 5000 sets, the products have long service life and fast heating rate with the world's energy shortage, the concept of energy-saving transformation has become a long-term goal, and the mechanical energy-saving transformation has become the mainstream of the mechanical industry, many enterprises have begun to realize that the mechanical energy-saving transformation is necessary. So what are the benefits of the electromagnetic energy-saving transformation project? First, energy conservationThe transformation project reduces the production cost, maximizes the benefits of the enterprise, improves the production efficiency and improves the workshop environment of the enterprise. Second, the energy-saving renovation project can reduce the wear and tear of machinery, extend the service life of machinery, and reduce the cost of machinery maintenance. As a new generation of business owners, such energy-saving transformation project investment is small, for the future enterprise profit is only a drop in the bucket, such investment is worth it. The electromagnetic heater uses the principle of electromagnetic induction to convert electric energy into heat energy. Main uses: plastic mechanical electromagnetic heating, electromagnetic heating control board, industrial electromagnetic heating, plastic electromagnetic heating, pelletizer electromagnetic heating, etc. the company has a complete and scientific quality management system. The monthly output can reach 5000 sets, the product has long service life and fast heating rate the electric heating tube is widely used in industrial heating environment, it needs only a little attention to use it correctly. The electric heating tube is a kind of electric heating element, which can be used alone in various electric heating equipment. First, put the stainless steel electric heating pipe into the water and then plug in (power on) to prevent the pipe from bursting in cold water. Avoid damaging the stainless steel electric heating pipe when the heat is not dissipated quickly and the allowable heating temperature is exceeded. The terminals of electric heating pipes shall be kept clean and dry. If chemical corrosion, flammable, explosive and other liquids or gases are used, the heating part of stainless steel electric heating pipes shall be completely immersed in the heating medium. Otherwise, the insulation performance will be reduced and it will be short circuited and broken down. The wiring part of stainless steel electric heating pipes shall be protected with insulation sealing device to prevent accidents. In addition, the outgoing part of the wiring shall be exposed outside the insulation layer or heater, so that this part shall not be damaged due to overheating. Relatively speaking, the cooling area is reduced. In addition, the heating pipe should be lying in the water instead of the stainless steel heating pipe in the water, because the heating time of the water in the fish tank will be extended and the electric energy will be consumed because the heat will rise with the pipe when the heating pipe is put in the water. At the same time, it will shorten the service life of the heating tube the electromagnetic heating equipment will change the power frequency alternating current or pure direct current into high frequency alternating current 1khz-1mhz through half bridge / full bridge inverter technology. High frequency alternating current will produce high frequency alternating magnetic field after passing through various inductive loads. When the metal object is in the high frequency alternating magnetic field, the metal molecules will produce numerous small eddy currents. Eddy current makes metal molecules move at high speed and irregularly. Metal molecules collide and rub with each other to produce heat energy, and finally achieve the purpose of converting electric energy into heat energy. Electromagnetic heating equipment is widely used in our work and life. For example, household electromagnetic furnace / electromagnetic tea furnace, commercial electromagnetic furnace, high frequency quenching machine, sealing machine, industrial smelting furnace, etc. Taking three-phase high-power commercial electromagnetic cooker as an example, this paper analyzes the application of film capacitor in electromagnetic heating equipment. The electromagnetic heater uses the principle of electromagnetic induction to convert electric energy into heat energy. Main uses: plastic mechanical electromagnetic heating, electromagnetic heating control board, industrial electromagnetic heating, plastic electromagnetic heating, pelletizer electromagnetic heating, etc. the company has a complete and scientific quality management system. The monthly output can reach 5000 sets, with long service life and fast heating rate1、 The main body of the heater in the oil pipeline is rod type reciprocating tubular structure, which is made of ferromagnetic heat carrying rod, steel sleeve and high-strength flange. After advanced welding process treatment, the main body of the heater has the characteristics of high-strength pressure resistance, solid seal, strong thermal strain capacity and corrosion resistance, and can bear enough mechanical pressure and strength. The electric heating control cabinet matched with the wellhead heater is a cabinet type protective structure, which is made of high-quality thick steel plate by bending and welding. The shell is treated by electrostatic spraying anti-corrosion process. The cabinet is composed of leakage type air switch, AC contactor, temperature control instrument, reactive power compensation element, overheat protection relay and other devices. The control circuit device has a master switch, which can manually put in and cut off the power supply of the control circuit. According to the place of use, the electric heating control cabinet of oil pipeline heater can be divided into general protection type and explosion-proof type; the heating mode can be divided into power frequency electric heating type and constant temperature variable frequency electric heating type, which can be used in different heating processes and places of use. Structure: the main body is rod type reciprocating tubular structure, supporting the use of explosion-proof control cabinet, and the liquid from the wellhead is heated through the cavity. 2、 The working principle of the electromagnetic heater is 1. The heat carrier of the electromagnetic heater is wound on the core of the ferromagnetic steel tube by the high temperature heat cable, and the structure is sleeved into the sheathed steel tube to form the magnetic field closed circuit. Because of the characteristics of the ferromagnetic steel tube, the current acts on the electromagnetic hot rod through the high temperature cable circuit, which makes the ferromagnetic steel tube produce strong hysteresis vortex rapidlyThe stray magnetic field released by the heat carrier is shielded and absorbed by the outer steel tube and generates skin effect heat in the ring, which is used to directly heat the oil. When the reactive power consumed by the electromagnetic heater is locally compensated by the reactive power, its power factor is more than 0.95. The reactive power consumed by the electromagnetic heater is directly converted into heat energy, which is used to heat the oil medium together. Therefore, its thermal efficiency is more than 98%. Compared with resistance heater, the average power saving rate is 10-31% under the same heating process. 2. The surface of the electromagnetic heater is evenly heated without open fire. It overcomes the defect of high temperature of resistance heater (up to 400 ℃ under working condition), and has the characteristics of safety, explosion-proof and long service life (several times of resistance heater). Principle: the principle of eddy current heating is induced by magnetic field. ? electromagnetic heater is a device that uses electromagnetic induction principle to convert electric energy into heat energy. The electromagnetic controller will be 220V, 50 / 60Hz alternating current rectifies into direct current, and then converts direct current into high-frequency high-voltage current with frequency of 20-40khz. The high-frequency high-voltage current with high-speed change flows through the coil, which will generate high-speed alternating magnetic field. When the magnetic line in the magnetic field passes through the conductive magnetic metal material, numerous small eddy currents will be generated in the metal body, which will make the metal material itself generate high-speed heat, so as to achieve heating Something in a metal barrel. Key points for installation 1 installation of main machine of electromagnetic heater: disconnect the oil gathering and transportation pipeline, pass through the oil inlet and outlet interceptors and the wellhead heater respectivelyThe inlet and outlet flanges of are connected in series in the oil gathering pipeline. On the oil inlet and outlet pipelines at the front end of the oil inlet and shut-off valve of the wellhead heater, a bypass shut-off valve is connected for the purpose of well flushing, pipeline cleaning and heater shutdown. When the bypass pipeline is used for direct oil transportation, 2 the wellhead heater must be installed horizontally. Fasten the heater rod body with a metal bracket, and erect it at a height of about 0.5m from the ground. In order to prevent the impact of workover operation on the heater, the wellhead heater shall be installed 5m away from the wellhead Christmas tree. 3. The control cabinet shall be fixed on the prefabricated bracket of heater with screws, and the grounding wire shall be well connected. The section of grounding or neutral wire shall not be less than 6mm of copper core, and its grounding resistance shall not be greater than 4 Ω. 4 screw the temperature controller sensor probe equipped with the cabinet into the sensor installation hole at the lower side of the oil outlet flange, and the connecting control wire is connected and fastened at the corresponding two end wires of the control wire terminal row through the inlet wire hole at the bottom of the cabinet. 5. The wellhead heater and control cabinet shall be installed in accordance with the explosion-proof environment, and the wiring must meet the corresponding explosion-proof level requirements. When the general control cabinet is used in the place with high oil and gas concentration, the control cabinet shall be installed in the isolated power distribution room. The transmission wire and control cable for the heater shall meet the explosion-proof process requirements. The load current density shall not exceed 3.5a/mm2 of copper core safety precautions 1. The leakage protection function of electromagnetic heater control box shall be tested at least once a month, which shall be sensitive and reliable, without automatic power supply and heatingCheck the cause, eliminate the fault, and do not short-circuit the temperature controller and overheat protection element, It is not allowed to force the AC contactor to close 2. The oil well has a high pumping frequency and a long time, a low liquid production and a slow https://www.ranzhichina.com/product/induction-heater-manufacturer-electromagnetic-heater-manufacturer-electromagnetic-heater-supplier flow of oil in the pipeline. In addition, there is no reference water for circulation. Therefore, the heating process of multiple oil wells converging and sharing one electromagnetic heater should be adopted to prevent the electromagnetic heater from being damaged due to the frequent thermal protection working state of electromagnetic heating for a long time and the high back pressure caused by the long distance of pipeline transportation. 3. Before high-pressure pipeline cleaning and well flushing operation, the bypass shut-off valve must be opened in advance, the shut-off valve at the oil inlet and outlet of the electromagnetic heater must be closed, and the power supply of the control box must be cut off, so as to prevent the electromagnetic heater from being damaged by high-pressure impact, resulting in unnecessary losses. 4. When the well repairing operation in winter or the electromagnetic heater is out of service for a long time, the power supply of the control box must be cut off. 5. The safety protection device of electromagnetic heater shall be inspected once a year to ensure the action sensitivity of the device. According to the actual situation of Santanghu oil production plant, the double overheat protection device of wellhead heater and overheat protection device of oil tank heater are replaced once a year at most, so as to prolong the service life of electromagnetic heater and ensure its safe and reliable operation. 6. In the heating environment with insufficient liquid flow or frequent air resistance, the automatic constant temperature power regulating control cabinet shall be selected as far as possible to reduce the abnormal dry burning and anti dry burning of the heater for a long time, so that the aging of the insulation https://www.ranzhichina.com/article medium of the heater will accelerate or even affect its insulation performance, which will directly affect its insulation performanceIts normal service life and service life. At present, the new energy-saving technology of electromagnetic energy heating transformation uses the electromagnetic induction principle to generate 12 ~ 30kHz high-frequency oscillation wave, and generates heat through the eddy current induced by the plastic machine barrel itself. Because this way belongs to the heating of the heated body itself, the utilization rate of thermal efficiency can reach about 90%, and completely solves the problem of low efficiency of heat conduction through air in the traditional resistance heating way. At the same time, because a layer of high temperature resistant insulation material is wrapped around the barrel, only a small part of the heat generated is emitted into the air. The resistance heating method is to heat through its own resistance. This heating performance determines that the temperature of the heating wire in the heating process cannot be too high, otherwise the heating wire will soon be fused by high temperature. Therefore, this heating method cannot add insulation cotton outside the heater to prevent the heat from spreading to the air. This property determines that half of the heat will be sent to the air, and white loss will occur Therefore, the thermal efficiency of the common resistance heating method can only reach 60%, some of which are lower than 30%. Therefore, for plastic machinery, the electromagnetic heating method can have obvious power saving effect, at least 30%, and some of the original machinery with low thermal efficiency can reach 80%. Moreover, in terms of the stability of the heating temperature, the temperature of the electromagnetic heating mode can be more accurate. The temperature control is to place the sensor on the barrel. When the temperature of the barrel reaches the temperature we need, the thermostat will send out instructions to cut off the heating current and stop heating. We can analyze the electromagnetic energy plusThe characteristics of heating of hot and common electric heating wires in this state are as follows: 1. In the heating process, when the temperature reaches the set temperature: in the electromagnetic energy heating mode, after the current is cut off, there will be no current in the high-temperature magnetic conducting wire, no magnetic field will be generated, and no eddy current will be generated in the barrel, that is, the barrel will stop heating immediately, in theory, the temperature will not rise again. In the resistance heating mode, when the temperature control sensor sends the temperature reaching signal, although However, the heating current is cut off, but at this time, the temperature of the resistance heating wire and the metal shell used for fixing and protecting the heating wire is still very high, and the heat will continue to be transmitted to the barrel, that is, the temperature of the barrel will continue to rise. Only when the temperature of the barrel is as high as that of the resistance heater, can the temperature rise stop. 2. In the heating process, when the temperature is lower than the set temperature: when the electromagnetic energy heating coil flows through the heating current, a magnetic field will be generated immediately, and at the same time, the induction eddy current will be generated in the barrel, the temperature will rise immediately, and the time will be very fast. After the resistance heater receives the heating signal, first the electric heating wire generates heat, the temperature will rise, and then the heat will be transmitted to the fixed heating The metal shell of the wire is protected and then transmitted to the barrel. This heat conduction process is relatively slow. The temperature difference between the two heating control methods can be imagined. With the energy conservation, consumption reduction and environmental protection increasingly becoming the focus of our society, government, enterprises and institutions, the folk literature degree of electromagnetic Electronics will be committed to the research and development and production of industrial electromagnetic heaters to make response for energy conservation and environmental protectionContribution! Jiangxin electronic is looking forward to establishing long-term partnership with major social groups, powerful distributors, institutions and individuals from all over the world to promote the market of electromagnetic heating application field, and constantly provide the society and people with high-quality, stable, energy-saving, high-quality and affordable products and services that can be used safely.