CN2132128Y - Electromagnetic heating device for boiler - Google Patents

Abstract

The utility model relates to an electromagnetic heating device for a boiler. The electromagnetic heating device for a boiler in an induction heating mode adopts a heat source structure of double-face tight coupling arrangement, which effectively prevents magnetic leakage and enlarges water heating area. Consequently, safety and heating efficiency is raised thoroughly, heating capacity is brought out thoroughly, and water producing rate is raised. The heating device which can continuously provide fresh magnetic boiling water soon after boiling has the advantages of simple structure, convenient operation and little scale and has sanitation and health care functions. The utility model is applicable in various power supply forms.

Description

Electromagnetic heating device for boiler

The utility model relates to a kind of improvement of electric water boiler heater.

Its electric heating form of the electric water-boiling device tool of Xiao Shouing generally is a resistance heated in the market, and this mode of heating thermal efficiency is low, and power consumption is big, and incrustation scale is many.Recently the induction heating mode electric water-boiling device tool heat source configurations single face coupled arrangement that occurs is unreasonable, the inductor bottom provides a loop-freedom leakage field to occur to magnetic flux, not only reduced power factor, the raising of restriction heating efficiency, and leakage field and on every side steel part be coupled and cause steel part heating and discharge occurs, be exactly this type as Chinese patent (88209910.8).Inner furnace body heating boiling water position area corresponding with inductor in this in addition boiler is little, power is not close, and heating boiling water speed can not be given full play to.

The purpose of this utility model provides a kind of improved induction heating mode electromagnetic drinking water boiler heater, and it can prevent leakage field effectively, can make that inner furnace body heating boiling water position area increases, power is close.

The utility model is achieved in that with securing member by heat insulation, insulating barrier, will be through the inductor of high temperature, insulation processing curing molding, relatively evenly coincideing is arranged in the middle of the inner furnace body that corresponding with it in shape, the big 1.1-1.2 of area doubly is pressed into the ferromagnetism corrosion resistant plate.According to the voltage-selected switch on the power supply operation electric cabinet, when cold water is store inner furnace body middle water level sensing station, inductor obtains high frequency (20-40KHZ) electric current by radio-frequency generator in the electric cabinet, be in the inner furnace body two sides that surrounds inductor in the alternating magnetic field, form interlinkage for the magnetic line of force provides low magnetic resistance, prevent that effectively the magnetic field leakage is diffusing; The maelstrom of this two sides generation is concentrated on the position of heating boiling water simultaneously, thereby reaches the expansion heating surface (area) (HS, closely the purpose of power.

The concrete structure of utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is a double-box type inner furnace body electromagnetic drinking water boiler heater schematic diagram.

Fig. 2 is single boxlike inner furnace body electromagnetic drinking water boiler heater schematic diagram.

Fig. 3 is an A-A line profile among Fig. 1.

With reference to Fig. 1, inner furnace body (3) is pressed into by the thick ferromagnetism corrosion resistant plate of 0.8mm and is of a size of 200 * 200 * 15 inner furnace body upper water box, inner furnace body lower header and forms, and positioned opposite at the bottom of the two water tank casees, and the outside scribbles the phosphate insulating barrier.Two left and right symmetric arrangement of hollow bolt and the nut made with the ptfe plastic rod are formed one group of securing member (2), by the thick silica gel plate heat-insulating layer (4) of 1mm, will be by copper core enamel-covered wire coiled, through the inductor (5) of high-temperature ceramic materials curing molding, correspondence is coincide, closely is clipped in therebetween.

When the voltage-selected switch (8) on the operation electric cabinet (9), cold water is along the right hollow bolt of direction shown in the arrow (1) by securing member (2), through the lower header of inner furnace body (3), the left hollow bolt of securing member (2), enter the upper water box of inner furnace body (3).When the water storage water level rose to level sensor (7), inductor (5) obtained high frequency (20-40KHZ) electric current by electric cabinet (9) medium-high frequency generator and produces high frequency magnetic field, and then the cold water in the inner furnace body (3) is magnetized through the high frequency magnetic field effect; Simultaneously cause that in upper water box bottom, lower header bottom maelstrom overcomes internal resistance and produces heat with the closely-coupled inner furnace body of inductor (5) (3), and the two-sided boiling water that is heated into of cold water that will be magnetized very soon.Magnetization boiling water is jumped along direction shown in the arrow (6) by the upper water box outlet of inner furnace body (3) and goes out, and flows into and produces water tank (10).To pine for incrustation scale few adding for this magnetized drinking water, and boiling magnetization boiling water is soon kept fit body-building functions.In case when water storage is lower than level sensor (7), then cut off high frequency electric automatically, stop heating, realize excessive low water level protection; Cold water obtains the additional heating that can recover again by the right hollow bolt of securing member (2) along direction shown in the arrow (1) in inner furnace body (3).

Because a cover AC and DC supply convertor is arranged in the electric cabinet (9), and by voltage-selected switch (8), the electromagnetic drinking water boiler heater is applicable to multiple power supply pattern; When control circuit element or device break down, can change active mounting easily at the electric cabinet (9) that produces (10) on the hydrophone.

Different with Fig. 1 is that the inner furnace body among Fig. 2 (3) is made single boxlike; Make securing member (2) with the ptfe plastic hollow block of thick 3mm, the inductor (5) of curing molding is evenly coincide with inner furnace body (3) by heat-insulating layer (4) arrange, close-coupled; It is the water inlet pipe (11) that the stainless steel tube of φ 15 is made that caliber is arranged.This embodiment manufacturing process is simple, and the working environment of inductor (5) improves, but the overall efficiency difference is a little.

The utility model is because the heat source configurations that has adopted symmetrical two-sided close-coupled to arrange, so simple structure not only, and prevented leakage field effectively, enlarged inner furnace body heating boiling water area, it is close to have reached heating boiling water position power, thereby safe and reliable, fully improve the efficiency of heating surface, brought into play heating efficiency, improved the product water speed.

Claims (5)

1, a kind of electric water boiler heater, this device comprises the thermal source that produces water tank (10) and utilize electromagnetic induction principle to be made up of inner furnace body (3) and inductor (5) close-coupled, it is characterized in that inductor (5) is surrounded by inner furnace body (3), promptly use securing member (2) that inner furnace body (3) is arranged with two-sided evenly the coincideing of inductor (5) by middle spaced heat, insulating barrier (4).

2, according to the described device of claim 1, it is characterized in that the inner furnace body (3) that is pressed into the ferromagnetism corrosion resistant plate, shape is corresponding with inductor (5), and the section ratio inductor is big 1.1～1.2 times.

3,, it is characterized in that inductor (5) is by copper core enamel-covered wire curing molding after high temperature, insulation processing according to the described device of claim 1.

4, according to the described device of claim 1, it is characterized in that the having voltage-selected switch electric cabinet (9) of (8) and produces hydrophone (10) active mounting.

5,, it is characterized in that inner furnace body (3) is equipped with level sensor (7) according to the described device of claim 4.

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