CN111828949A - Power supply controller for electromagnetic heating steam generator - Google Patents
Power supply controller for electromagnetic heating steam generator Download PDFInfo
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- CN111828949A CN111828949A CN202010883481.0A CN202010883481A CN111828949A CN 111828949 A CN111828949 A CN 111828949A CN 202010883481 A CN202010883481 A CN 202010883481A CN 111828949 A CN111828949 A CN 111828949A
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- power supply
- steam generator
- main power
- supply controller
- heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Induction Heating (AREA)
Abstract
The invention discloses a power supply controller for an electromagnetic heating steam generator, which comprises: the processor is used for acquiring steam parameters and generating analog quantity signals according to the parameters; the main power supply is provided with a communication module and is used for receiving the analog quantity signal of the processor and controlling the output power in real time according to the analog quantity signal; the isolator comprises a primary isolation transformer and a secondary isolation heater and is used for connecting a main power supply and the steam generator; the input end of the primary isolation transformer is connected with a main power supply, the output end of the primary isolation transformer is connected with the secondary isolation heater, and the electric energy of the main power supply is converted into magnetic energy to be transmitted to the secondary isolation heater; the secondary isolation heater is distributed on a water conveying pipeline of the steam generator and converts magnetic energy into induction vortex to heat water to generate steam. The water and electricity separation heating technology is really realized, the safety is greatly improved compared with the safety of gas and common electric heating, the volume is smaller, the equipment is convenient and fast, the frequency conversion control is realized simultaneously, the supply is required, and the energy waste is avoided.
Description
Technical Field
The invention relates to an electromagnetic heating steam generator, in particular to a power supply controller for the electromagnetic heating steam generator.
Background
At present, heating modes for generating steam comprise gas, electric heating and traditional electromagnetic heating, and a novel frequency conversion and two-stage isolation electromagnetic heating mode is adopted. Gas heating, in which chemical energy is converted into heat energy by a natural gas or coal gas combustion mode to heat water in a pipeline so as to generate steam; the common electric heating directly heats water through resistance wires to generate steam. The two heating modes are relatively original, the gas combustion belongs to chemical reaction, smoke pollution can be generated in the heating process, open fire exists, potential safety hazards exist, and gas poisoning can be generated if the smoke exhaust effect is poor. Common electric heating water and electricity are not separated, the electric heating tube directly generates heat in water, scale can be generated when the electric heating tube is contacted with the water for a long time, and the surface of the electric heating tube can be gathered, so that the electric heating tube is heated unevenly, and is broken, thereby generating the phenomenon of electric leakage.
The traditional electromagnetic heating mode is safe relative to the two heating modes, and has the advantages of fast heating speed and strong reliability, but also has certain defects. The electromagnetic heating steam generator adopted in the market at present directly wraps the heating coil outside the pressure vessel, and the shell of the vessel generates eddy current by utilizing the principle of electromagnetic induction to heat the water in the vessel and generate steam. Because the coil is adopted for direct heating drive, the electromagnetic heating coil resonates with a capacitor in the machine, the coil is required to have large inductance and large wire diameter, the machine with 220V10KW is directly driven, the current in the coil can reach 80A, the diameter of the coil needs to be increased to be about 25 square millimeters due to the skin effect of high-frequency heating current, the overlong heating coil and the large current in the machine have large temperature rise of the coil to reach about 120 ℃, and therefore the heat efficiency is reduced. In summary, the conventional electromagnetic heating mainly has the following disadvantages: the direct electromagnetic driving mode is adopted, the coil is thick and long, the current is large, the self heat productivity of the coil is large, partial heat is emitted into the air, the heat efficiency is reduced, and meanwhile, the safety is not enough.
Disclosure of Invention
In view of the defects, the invention provides the power supply controller for the electromagnetic heating steam generator, which really realizes the water-electricity separation heating technology, greatly improves the safety compared with the gas and common electric heating, has smaller volume and convenient equipment, simultaneously realizes the frequency conversion control, meets the demand of supplying and does not have energy waste.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
a power supply controller for an electromagnetically heated steam generator, the power supply controller comprising:
the processor is used for acquiring steam parameters and generating analog quantity signals according to the parameters;
the main power supply is provided with a communication module and is used for receiving the analog quantity signal of the processor and controlling the output power in real time according to the analog quantity signal;
the isolator comprises a primary isolation transformer and a secondary isolation heater and is used for connecting a main power supply and the steam generator;
the input end of the primary isolation transformer is connected with a main power supply, the output end of the primary isolation transformer is connected with the secondary isolation heater, and electric energy of the main power supply is converted into magnetic energy to be transmitted to the secondary isolation heater;
the secondary isolation heater is distributed on a water conveying pipeline of the steam generator and converts magnetic energy into induction vortex to heat water to generate steam.
According to one aspect of the invention, the main power supply is provided with a MOUDBUS485 communication module, and the main power supply is used for exchanging data with the processor at a high speed, receiving analog quantity signals and changing the running frequency of the machine in real time to achieve real-time changing power output.
According to one aspect of the invention, the primary isolation transformer uses a nanocrystalline soft magnetic alloy material as a magnetic core.
According to one aspect of the invention, the number of turns of the output end of the primary isolation transformer is larger than that of the input end, so that the output voltage is increased.
According to one aspect of the invention, the secondary isolation heater comprises a plurality of groups of parallel low-current inductive heating elements, and the inductive coils of the inductive heating elements are arranged in the copper pipe and are insulated from the copper pipe.
According to one aspect of the invention, the output end of the primary isolation transformer is connected with an inductance coil of the inductance heating element, alternating current output by the transformer generates a magnetic field, and the inductance coil converts magnetic energy into induced eddy current to heat the inductance heating element.
According to one aspect of the invention, the copper pipe is surrounded on the outer ring of the water conveying pipeline, and the induction heating unit heats the copper pipe, so that the water in the water conveying pipeline is gasified to generate steam.
According to one aspect of the invention, the water pipeline is stainless steel pipeline.
The implementation of the invention has the advantages that: the invention provides a power supply controller for an electromagnetic heating steam generator, which comprises: the processor is used for acquiring steam parameters and generating analog quantity signals according to the parameters; the main power supply is provided with a communication module and is used for receiving the analog quantity signal of the processor and controlling the output power in real time according to the analog quantity signal; the isolator comprises a primary isolation transformer and a secondary isolation heater and is used for connecting a main power supply and the steam generator; the input end of the primary isolation transformer is connected with a main power supply, the output end of the primary isolation transformer is connected with the secondary isolation heater, and electric energy of the main power supply is converted into magnetic energy to be transmitted to the secondary isolation heater; the secondary isolation heater is distributed on a water conveying pipeline of the steam generator and converts magnetic energy into induction vortex to heat water to generate steam. The water and electricity separation heating technology is really realized, the safety is greatly improved compared with the safety of gas and common electric heating, the volume is smaller, the equipment is convenient and fast, the frequency conversion control is realized simultaneously, the supply is required, and the energy waste is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a power supply controller for an electromagnetically heated steam generator in accordance with the present invention;
FIG. 2 is a schematic diagram of a primary isolation transformer of a power controller for an electromagnetic heating steam generator according to the present invention;
fig. 3 is a schematic structural diagram of a two-stage isolation heater of a power controller for an electromagnetic heating steam generator according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, 2 and 3, a power supply controller for an electromagnetic heating steam generator, the power supply controller comprising:
the processor is used for acquiring steam parameters and generating analog quantity signals according to the parameters;
the main power supply is provided with a communication module and is used for receiving the analog quantity signal of the processor and controlling the output power in real time according to the analog quantity signal;
the isolator comprises a primary isolation transformer and a secondary isolation heater and is used for connecting a main power supply and the steam generator;
the input end of the primary isolation transformer is connected with a main power supply, the output end of the primary isolation transformer is connected with the secondary isolation heater, and electric energy of the main power supply is converted into magnetic energy to be transmitted to the secondary isolation heater;
the secondary isolation heater is distributed on a water conveying pipeline of the steam generator and converts magnetic energy into induction vortex to heat water to generate steam.
In practical application, the main power supply is provided with a MOUDBUS485 communication module, and the main power supply and the processor perform high-speed data exchange, receive analog quantity signals and change the running frequency of the machine in real time to achieve real-time changing power output.
In practical application, the main power supply amplifies the original capacitance based on the traditional power supply controller, so that a primary isolation transformer can be better matched, capacitance is increased in a certain frequency range according to a series resonance calculation formula F ═ 1/[2 Π √ L √ C ], and a certain frequency can be obtained by a small inductance. So as to better match the primary isolation transformer and realize isolation control.
In practical application, the primary isolation transformer adopts a nanocrystalline soft magnetic alloy material as a magnetic core.
In practical application, the nanocrystalline soft magnetic alloy is soft magnetic alloy with a nanocrystalline structure obtained by heat treatment on the basis of amorphous alloy, and has more excellent soft magnetic performance. The isolation transformer is made of the magnetic core, so that the isolation of the main power supply and the rear-end heater is realized.
In practical application, the number of turns of the output end of the primary isolation transformer is larger than that of the input end, so that the output voltage is increased.
In this embodiment, the parameters of the primary isolation transformer are: magnetic core material: iron-based nano amorphous alloy K107; the optimal working frequency is as follows: 10-20 KHZ; inductance coefficient: size of 120UH magnetic ring: outer diameter 120, inner diameter 60, height 30MM, coercivity: 1.6A/m; remanence: 0.2; the size of the protective shell is as follows: outer diameter 125 inner diameter 56 height 33 MM; curie temperature: 570; saturation magnetic induction: 1.2T; single turn saturation voltage: 24V; maximum power: 20 KW; magnetic permeability: 50000.
in practical application, the isolation transformer utilizes the principle of electromagnetic induction, the isolation transformer generally refers to a 1:1 transformer, and the embodiment utilizes inductance matching and electrical appliance working characteristics to manufacture the isolation transformer with a certain turn ratio. Since the output is not connected to ground. There is no potential difference between any line of the output terminal and the ground. The use is safe.
In practical application, although the primary and secondary windings of a general transformer also have the function of an isolation circuit, under the condition of high frequency, the capacitance between the two windings still causes electrostatic interference between circuits on two sides. The interference can be avoided by adopting the nanocrystalline as the magnetic core, and the electrostatic shielding is additionally arranged between the windings so as to obtain higher interference resistance.
In practical application, as shown in fig. 2, the primary isolation transformer U1\ U2 of the present embodiment is connected in series with the capacitor inside the machine to form a series resonance. Because the capacitance is large, the required inductance is small, and therefore, the winding of the coil is few. Through a certain turn ratio, u1\ u2 becomes a secondary, because the number of turns of the output end is greater than that of the input end, the voltage is increased in multiples, under the condition of outputting the same power, the current of the output end is smaller, and because the output end is connected with the secondary isolation heater, the current of an inductance coil of the secondary isolation heater is very small, so that the secondary isolation heater becomes miniaturized and convenient.
In practical application, because the traditional electromagnetic heating controller is not controlled by an isolation transformer, the isolation transformer is added on the basis of the traditional electromagnetic heating controller, so that the rear-end small inductance value can be better adapted, conditions can be created for the adoption of a small and rapid inductance heating body at the rear end, and instant heating type output inductance heating steam is realized.
In practical application, the secondary isolation heater comprises a plurality of groups of parallel low-current inductance heating elements, and inductance coils of the inductance heating elements are arranged in the copper pipes and are insulated from the copper pipes.
In practical application, the output end of the primary isolation transformer is connected with an inductance coil of the inductance heating element, alternating current output by the transformer generates a magnetic field, and the inductance coil converts magnetic energy into induced eddy current to enable the inductance heating element to heat.
In practical application, as shown in fig. 3, in this embodiment, u1 and u2 output by the primary isolation transformer are connected to u1 and u2 of the inductance coil of the secondary isolation heater, the inductance coil in the copper tube and the copper tube are insulated, the alternating electric field output by the transformer generates a changing magnetic field, and the inductance coil converts magnetic energy into induced eddy current to generate heat by the electromagnetic induction heating principle, so as to drive the outer copper tube to generate heat.
In practical application, the copper pipe is surrounded on the outer ring of the water delivery pipeline, and the inductance heating unit heats the copper pipe, so that the water delivery pipeline is heated, and water in the water delivery pipeline is gasified to generate steam.
In practical application, after the copper pipe is heated, the copper pipe surrounds the outer ring of the water pipeline, so that the water pipeline can be driven to heat, and the water in the water pipeline is gasified to generate steam and is sprayed out from the steam outlet.
In practical application, a main power supply and an isolation transformer are combined to realize primary isolation, the rear end of the main power supply is connected with a plurality of groups of parallel small-current inductance heating bodies, the heating bodies and a water vapor medium loop are subjected to heat exchange to realize secondary isolation, and software cooperates with hardware to work cooperatively to synthesize a new main controller.
In practical application, the water conveying pipeline is a stainless steel pipeline.
In practical application, the working principle of the present embodiment can be summarized as follows: the processor controls the output power of the main power supply according to steam parameters, the main power supply passes through a primary isolation transformer, electric energy is transmitted from an input end to an output end through the transformer, primary isolation is achieved, output current is reduced, a secondary isolation heater is connected with the output end of the primary isolation transformer, magnetic energy obtained from the primary isolation transformer is used by an inductance coil, the magnetic energy is converted into induced eddy current through the inductance coil, a heating body is heated by the eddy current to drive a peripheral copper pipe to heat, the copper pipe surrounds the periphery of a water conveying pipeline and can exchange water heat in the water conveying pipeline, so that the steam generator generates heat, and the magnetic energy completely acts in the heating process. The water in the steam generator flows in the capillary water conveying pipe and is completely separated from the electromagnetism. The process of heating the water is accomplished by two stages of isolation.
The implementation of the invention has the advantages that: the invention provides a power supply controller for an electromagnetic heating steam generator, which comprises: the processor is used for acquiring steam parameters and generating analog quantity signals according to the parameters; the main power supply is provided with a communication module and is used for receiving the analog quantity signal of the processor and controlling the output power in real time according to the analog quantity signal; the isolator comprises a primary isolation transformer and a secondary isolation heater and is used for connecting a main power supply and the steam generator; the input end of the primary isolation transformer is connected with a main power supply, the output end of the primary isolation transformer is connected with the secondary isolation heater, and electric energy of the main power supply is converted into magnetic energy to be transmitted to the secondary isolation heater; the secondary isolation heater is distributed on a water conveying pipeline of the steam generator and converts magnetic energy into induction vortex to heat water to generate steam. The water and electricity separation heating technology is really realized, the safety is greatly improved compared with the safety of gas and common electric heating, the volume is smaller, the equipment is convenient and fast, the frequency conversion control is realized simultaneously, the supply is required, and the energy waste is avoided.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed herein are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A power supply controller for an electromagnetically heated steam generator, the power supply controller comprising:
the processor is used for acquiring steam parameters and generating analog quantity signals according to the parameters;
the main power supply is provided with a communication module and is used for receiving the analog quantity signal of the processor and controlling the output power in real time according to the analog quantity signal;
the isolator comprises a primary isolation transformer and a secondary isolation heater and is used for connecting a main power supply and the steam generator;
the input end of the primary isolation transformer is connected with a main power supply, the output end of the primary isolation transformer is connected with the secondary isolation heater, and electric energy of the main power supply is converted into magnetic energy to be transmitted to the secondary isolation heater;
the secondary isolation heater is distributed on a water conveying pipeline of the steam generator and converts magnetic energy into induction vortex to heat water to generate steam.
2. A power supply controller for an electromagnetic heating steam generator as defined in claim 1 wherein said secondary isolation heater comprises a plurality of sets of parallel low current inductive heaters having their inductive coils disposed in and insulated from a copper tube.
3. A power supply controller for an electromagnetic heating steam generator as defined in claim 2 wherein the primary isolation transformer output is connected to the inductor winding of the induction heating element, the alternating current output from the transformer generates a magnetic field, and the inductor winding converts the magnetic energy into induced eddy currents to heat the induction heating element.
4. The power supply controller for the electromagnetic heating steam generator as claimed in claim 3, wherein the copper pipe is surrounded on the outer ring of the water pipe, and the inductive heating element heats the copper pipe, so that the water pipe is heated, and the water in the water pipe is gasified to generate steam.
5. A power supply controller for an electromagnetic heating steam generator as claimed in claim 1 wherein said primary isolation transformer uses nanocrystalline soft magnetic alloy material as a magnetic core.
6. A power supply controller for an electromagnetic heating steam generator as claimed in claim 5 wherein the primary isolation transformer has a greater number of turns at its output than at its input, causing the output voltage to increase.
7. A power supply controller for an electromagnetic heating steam generator as claimed in any one of claims 1 to 6 wherein the water conduit is stainless steel.
8. A power supply controller for an electromagnetic heating steam generator as claimed in claim 1 wherein said main power supply has a MOUDBUS485 communications module for high speed data exchange with the processor, receiving analog signals and changing the operating frequency of the machine in real time to achieve a real time varying power output.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010883481.0A CN111828949B (en) | 2020-08-28 | 2020-08-28 | Power supply controller for electromagnetic heating steam generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010883481.0A CN111828949B (en) | 2020-08-28 | 2020-08-28 | Power supply controller for electromagnetic heating steam generator |
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| CN111828949A true CN111828949A (en) | 2020-10-27 |
| CN111828949B CN111828949B (en) | 2022-07-12 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0462544A1 (en) * | 1990-06-18 | 1991-12-27 | Hidec Corporation Ltd. | Electromagnetic induction heater |
| CN2429777Y (en) * | 2000-06-21 | 2001-05-09 | 秦光明 | HF induction heating boiler at normal voltage |
| CN208058803U (en) * | 2018-04-10 | 2018-11-06 | 吴志永 | A kind of industrial electromagnetism steam generator of automatic power regulation |
| CN210441431U (en) * | 2019-07-29 | 2020-05-01 | 东莞市友达机电设备有限公司 | High-frequency electromagnetic heating device for heating liquid |
| CN210601555U (en) * | 2019-08-27 | 2020-05-22 | 深圳市东特工程设备有限公司 | Energy-saving frequency-conversion electromagnetic heating steam engine |
-
2020
- 2020-08-28 CN CN202010883481.0A patent/CN111828949B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0462544A1 (en) * | 1990-06-18 | 1991-12-27 | Hidec Corporation Ltd. | Electromagnetic induction heater |
| CN2429777Y (en) * | 2000-06-21 | 2001-05-09 | 秦光明 | HF induction heating boiler at normal voltage |
| CN208058803U (en) * | 2018-04-10 | 2018-11-06 | 吴志永 | A kind of industrial electromagnetism steam generator of automatic power regulation |
| CN210441431U (en) * | 2019-07-29 | 2020-05-01 | 东莞市友达机电设备有限公司 | High-frequency electromagnetic heating device for heating liquid |
| CN210601555U (en) * | 2019-08-27 | 2020-05-22 | 深圳市东特工程设备有限公司 | Energy-saving frequency-conversion electromagnetic heating steam engine |
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