CN212463548U

CN212463548U - Three-dimensional labyrinth electromagnetic heater

Info

Publication number: CN212463548U
Application number: CN202020783082.2U
Authority: CN
Inventors: 梁万全; 杨亮
Original assignee: Zhejiang Boyu Thermal Energy Technology Co ltd
Current assignee: Zhejiang Xichuan Electrical Co ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2021-02-02
Anticipated expiration: 2030-05-12

Abstract

The utility model relates to a three-dimensional labyrinth electromagnetic heater, including shell body, the converter, the outer closed tube, the heating sleeve, first communicating pipe and solenoid, converter and outer closed tube are fixed in the shell body, solenoid coils at the outer closed tube lateral wall, and solenoid is connected with the converter electricity, the heating sleeve sets up in the outer closed tube, and form the first heating chamber that holds water between the heating sleeve outside and the outer closed tube inboard, be equipped with first partition panel and second partition panel in the first heating chamber, the upper end and the lower extreme of first partition panel all are fixed with the outer closed tube, the upper end of second partition panel leaves the clearance with the outer closed tube, the lower extreme is fixed with the outer closed tube, still be equipped with the through-hole on the heating sleeve; the two first communication pipes are respectively communicated with the first heating cavity and the interior of the heating sleeve. The utility model discloses the telescopic interior external surface that generates heat in the middle all obtains the heat transfer effect heat of generating heat of use to the at utmost in proper order to obtain efficient heat exchange efficiency.

Description

Three-dimensional labyrinth electromagnetic heater

Technical Field

The utility model belongs to electromagnetic water heater or electromagnetic boiler field, specifically speaking relates to a three-dimensional labyrinth electromagnetic heater

Background

At present, commercial and civil electric water heaters or electric boilers mostly adopt a mode of directly heating by a heating rod, the efficiency is quickly reduced year by year because an electric heating pipe is easy to generate a heat exchange surface scaling phenomenon, and meanwhile, the safety is not high because water and electricity are not separated, and the problem can be well solved by using an electromagnetic heating technology. The electromagnetic heating core is a heater which converts electric energy into heat energy by utilizing the electromagnetic induction principle, a rectification circuit in a controller converts 50HZ alternating current voltage into direct current voltage, and the direct current voltage is converted into high-frequency alternating current voltage with the frequency of 10-30 KHZ through a control circuit. The high-frequency alternating voltage flows through the high-frequency conducting wire wound outside the non-metallic material pipe, and countless small eddy currents are generated when magnetic lines of force generated inside the high-speed changing magnetic field cut the metal container inside the non-metallic material pipe, so that water is heated quickly, and the effect of quickly heating the water is achieved. The electromagnetic induction heating water heater is safe, reliable, green and environment-friendly, heats through electromagnetic induction, and is really water-electricity separation and circuit and water path insulation. The electromagnetism can soft start at low pressure, reduces the harm of current surge impact, avoids damaging equipment safety and is guaranteed because of voltage fluctuation, and the constant power can be guaranteed because the frequency conversion power output part can automatically regulate and control the current size according to voltage fluctuation change, can not cause the electric load to rise along with the rising because of the voltage rising current, and damage is not enough caused. Therefore, the electromagnetic heating technology is widely applied to electric heating equipment, in particular to heating equipment in the field of coal-to-electricity conversion, and the safety of the equipment is improved to the greatest extent.

Most of electromagnetic boilers in the current market are high-frequency wire-wound iron drums, the electromagnetic coils are wound on iron pipes in the most similar structure, alternating current is generated by cutting the walls of the drums through electromagnetic wires (eddy magnetic fields), and eddy currents enable iron atoms in the pipes to collide with each other at high speed and irregularly move and generate heat energy through friction, so that the objects are heated. However, the heating of the cylinder wall often has the disadvantage of unbalanced heat conduction, the part close to the cylinder wall is hot, the part far away from the cylinder wall is not hot, the problem of low hot water output rate can be caused, and although the prior art also improves the problems of low heat exchange efficiency and low output power to a certain extent by some structural improvements, the beneficial effect is not very obvious. For example patent 2019200007742 "a novel heating structure of electromagnetic boiler" adopts two spiral agitator of inside fixed mounting of heating member, the spiral agitator rotates under the effect of rivers, thereby make the inside water spiral of heating member downwards, water fully contacts with the inner wall of heating member, thereby make water thermally equivalent, this structure has increased the disturbance of inside rivers in certain degree of stratification, improve heating efficiency, but also have the limitation, because under the quick rivers effect of circulating pump, heating pipe length is limited after all, fail the biggest distance when rivers pass through fast and carry out the heat transfer and still not effectively show improvement heat exchange efficiency, the agitator is along with using the suggestion that increases slowly block to play not to do not also not carry out the trouble this moment along with using, even find the trouble also maintain the degree of difficulty greatly so the structure still have the limitation. In addition, patent 2018209934903 "an electromagnetic heating atmospheric pressure hot water boiler" adopts two-stage heating coils to improve the effective utilization rate of electric power, but the structure is simple and the automatic operation is not easy, and the use place is limited, which results in the commercial electric boiler that is difficult to be applied to mass production. In addition, in patent 2015107504795, an instant electromagnetic water heater and an electric water heater adopts inner and outer ceramic bodies to form heating spaces on the inner and outer surfaces of a heating body, so that the heat exchange effect is effectively improved by doubling the heat exchange space compared with the traditional electromagnetic heating body, but the mechanism is complex, the production cost is high, and the instant electromagnetic water heater and the electric water heater are not suitable for high-power equipment.

Therefore, the electromagnetic heating boiler in the prior art has certain defects, and needs electromagnetic heating equipment which has better heat exchange effect, is easier to realize by high-power equipment, does not need to be maintained in the later period and has proper cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a three-dimensional labyrinth electromagnetic heater that the heat transfer is effectual, realize that high-power equipment, later stage need not maintenance, low cost, simple environmental protection easily.

In order to achieve the purpose of the invention, the utility model adopts the following technical scheme:

a three-dimensional labyrinth type electromagnetic heater comprises an outer shell, a frequency converter, an outer closed pipe, a heating sleeve, a first communication pipe and an electromagnetic coil, wherein the frequency converter and the outer closed pipe are fixed in the outer shell, the electromagnetic coil is wound on the outer side wall of the outer closed pipe, the electromagnetic coil is electrically connected with the frequency converter, the heating sleeve is arranged in the outer closed pipe, a first heating cavity for containing water is formed between the outer side of the heating sleeve and the inner side of the outer closed pipe, a first partition plate and a second partition plate are arranged in the first heating cavity, the upper end and the lower end of the first partition plate are both fixed with the outer closed pipe, a gap is reserved between the upper end of the second partition plate and the outer closed pipe, the lower end of the second partition plate is fixed with the outer closed pipe, and a through hole; the two first communication pipes are respectively communicated with the first heating cavity and the interior of the heating sleeve.

Preferably, a third partition plate is further arranged in the first heating cavity, the upper end of the third partition plate is fixed to the outer closed pipe, a gap is reserved between the lower end of the third partition plate and the outer closed pipe, and the second partition plate and the third partition plate are alternately arranged at intervals.

Preferably, an inner ring sleeve is further arranged in the heating sleeve, a second heating cavity for containing water is formed between the outer side of the inner ring sleeve and the inner side of the heating sleeve, and the inner ring sleeve is also provided with a through hole; and two ends of the heat exchange coil are respectively communicated with the first heating cavity and the inner ring sleeve through a first communicating pipe.

Preferably, the second heating chamber is also provided with a first partition plate, and a plurality of second partition plates and third partition plates alternately arranged at intervals.

Preferably, a shielding cover is further arranged outside the electromagnetic coil, a blow-down valve is further arranged on the outer closed pipe, and a plug and a ball valve are further arranged on the first communication pipe.

Preferably, the heating sleeve is made of metal, including but not limited to aluminum, steel, iron, and copper.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a sleeve that generates heat is located closed sleeve's inside, and the inside and outside of sleeve that generates heat all has rivers, and this makes the telescopic inside and outside surface that generates heat in the middle of all obtain the heat transfer effect heat that generates heat of using to the at utmost in proper order to obtain efficient heat exchange efficiency. Additionally, the utility model discloses an orderly partition panel of the mistake of setting in the heating cavity cuts apart into a plurality of fan-shaped cavitys with the annular cavity and forms continuous labyrinth passageway and be used for the hot water circulation that trades, and such effect is for the heat transfer area of multiplicable hydrologic cycle also be exactly that the effect of trading is better, also need not the later maintenance simultaneously.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic sectional structure of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

The three-dimensional labyrinth electromagnetic heater shown in fig. 1 to 3 comprises an outer shell, a frequency converter, an outer closed tube 205, a heating sleeve 206, a first communication tube 203 and an electromagnetic coil 201, wherein the frequency converter and the outer closed tube 205 are fixed in the outer shell, the electromagnetic coil 201 is wound on the outer side wall of the outer closed tube 205, the electromagnetic coil is a device heating source, wires with corresponding wire diameters are selected according to power, and are wound upwards along the axial direction of the heating sleeve, and the height of the electromagnetic coil allows segmented winding until required inductance or required length is achieved. The electromagnetic coil 201 is electrically connected with a frequency converter, the frequency converter outputs high-frequency alternating current to the electromagnetic coil to generate a magnetic field to heat the heating sleeve so as to heat internal circulating water, and the electromagnetic coil is an equipment heating source, wherein the internal circulating pipe is of a three-dimensional labyrinth structure. The frequency converter is a driving part of the heating coil, converts an externally input 50HZ alternating current voltage into a direct current voltage, and converts the direct current voltage into a high-frequency alternating current voltage with the frequency of 10-30 KHZ through the control circuit to heat the electromagnetic coil.

The electromagnetic coil 201 is wound on the outer side wall of the outer closed pipe 205, a shielding cover 202 is further arranged outside the electromagnetic coil 201, the heating sleeve 206 is arranged in the outer closed pipe 205, a first heating cavity for containing water is formed between the outer side of the heating sleeve 206 and the inner side of the outer closed pipe 205, and a through hole 204 is further formed in the heating sleeve 206; be equipped with first partition panel 208 and second partition panel 209 in the first heating chamber, the upper end and the lower extreme of first partition panel 208 all are fixed with outer closed tube 205, the upper end and the outer closed tube 205 of second partition panel 209 leave the clearance, and the lower extreme is fixed with outer closed tube 205. Still be equipped with third partition panel 210 in the first heating chamber, the upper end and the outer closed tube 205 of third partition panel 210 are fixed, and the lower extreme leaves the clearance with outer closed tube 205, second partition panel 209 and third partition panel 210 interval alternate arrangement. An inner ring sleeve 207 is further arranged in the heating sleeve 206, a second heating cavity for containing water is formed between the outer side of the inner ring sleeve 207 and the inner side of the heating sleeve 206, and the inner ring sleeve 207 is also provided with a through hole 204; two first communication pipes 203 are respectively communicated with the first heating cavity and the interior of the heating sleeve 206. Two first communicating pipes have the ring flange structure, and the welding of mounting hole position has the nut simultaneously, the quick effectual installation pipeline of convenient to use scene. A first partition plate 208, and a plurality of second partition plates 209 and third partition plates 210 alternately arranged at intervals are also disposed in the second heating chamber.

As shown in fig. 2 and 3, cold water enters the first heating chamber from the first communication pipe 203 at the lower part of the electromagnetic heater, the first partition plate 208 enables the water to flow only in one direction, the second partition plate 209 and the third partition plate 210 enable the water to flow into the next region from the upper part and the lower part respectively, the water flows into the second heating chamber through the through hole 204 at the upper part or the lower part of the heating sleeve 206 after reaching the last region, the water flows through the whole second heating chamber in the same manner after entering the second heating chamber, finally, the water enters the inner ring sleeve 207 through the through hole 204 on the inner ring sleeve 207 and flows out of the electromagnetic heater through the first communication pipe at the top of the electromagnetic heater, and at this time, the cold water is heated into hot water.

The first partition plate 208, the second partition plate 209, and the third partition plate 210 may be arranged in a cross shape as shown in fig. 3, the first partition plate 208 and the third partition plate 210 are distributed at 180 degrees, and the two second partition plates 209 are distributed at 180 degrees; more second partition boards 209 and third partition boards 210 can be arranged to divide the first heating chamber and the second heat insulation chamber into more areas, and in addition, the circulation direction of water in the first heating chamber and the circulation direction of water in the second heating chamber can adopt clockwise or counterclockwise simultaneously, or one of the two can adopt counterclockwise, and the other adopts clockwise, so that the latter is more favorable for uniform heat conduction. The heat exchange area can be formed to the maximum extent by the internal three-dimensional labyrinth circulation heat exchange path of the electromagnetic heater, and meanwhile, the internal and external surfaces of the heating tube body are simultaneously subjected to heat exchange utilization, so that the most efficient heat exchange effect of the equipment is sequentially obtained.

Still be equipped with blowoff valve and blowdown pipeline on the outer closed pipe 205, the blowdown pipeline is installed on the independent mouth of pipe in electromagnetic heater bottom, installs the ball valve simultaneously for the inside unnecessary water of evacuation equipment when maintenance and not using heat supply unit, still be equipped with the end cap on the first connecting pipe 203 that is located the electromagnetic heater top, can use suggestion cleaning means to carry out the cleanness on heating pipe internal surface after opening the end cap, and need not unload the heating pipe alone, effectively do not harm heating pipe and sealing member fast simultaneously.

The utility model discloses an outer closed tube adopts straight tube type structure, and the bottom plate of outer closed tube is opened has the through-hole according to the circumference equipartition, can singly or a plurality of heaters directly use bolt fixed mounting to the equipment base, and convenient operation and stability are good. The electromagnetic coil 201 is also provided with a shielding cover 202 which is uniformly distributed outside the electromagnetic coil and can be made of metal materials with poor magnetic conductivity. The shielding cover can effectively reduce weak radiation generated when the high-frequency electromagnetic coil works. The heating sleeve 206 is made of metal, including but not limited to steel, iron, and copper.

The utility model discloses an inner circle sleeve bottom trompil with the inner loop hot water collect the inner circle sleeve in, the delivery port is arrived to the rethread, this inner circle telescopic existence both can be so that sleeve and inner circle sleeve form the inner loop cavity that generates heat, can play the buffering effect again. The inner ring sleeve and the outer closed tube are made of non-magnetic materials, so that the electromagnetic coil can exert the heating effect of the heating sleeve in an ideal state, other tube bodies cannot be heated, and heat loss and unreasonable utilization of the structure are achieved.

The utility model discloses a fan-shaped cavity is cut apart into to the annular cavity body by the orderly partition panel of mistake's fall (including first partition panel, second partition panel and third partition panel) that first heating chamber and second heating chamber set up, through the interval of reasonable setting partition panel for fan-shaped cavity size is the same, can form continuous three-dimensional labyrinth passageway around these cavities simultaneously and be used for the hot water circulation that trades, and such effect is that the heat transfer area of multiplicable hydrologic cycle is also that the effect of trading is better, also need not the later maintenance simultaneously. In addition, preferably, the circulation directions of the first heating cavity and the second heating cavity are opposite, so that the temperature difference of the internal water temperature is not too large, and the thermal power of the heating tube body in the circumferential direction is equalized because the cavity with the lowest external circulation temperature (for example, the cavity of the number (r)) and the cavity with the highest internal circulation temperature (the corresponding cavity of the number (b)) are sector-shaped cavities radiating at the same angle.

The electromagnetic heater of the utility model also comprises an upper sealing plate and a bottom plate, wherein the upper sealing plate is welded with the upper end faces of the inner ring sleeve, the heating sleeve and the outer sealing pipe, and the central opening is used for being communicated with the first communication pipe; the bottom plate is the bottommost part of the equipment and plays a role in supporting the whole electromagnetic heater, and through holes are uniformly distributed in the circumferential direction and used for fixedly mounting the heater on an equipment frame.

The inner ring sleeve is located in the center of the heater, the inner ring sleeve is made of nonmagnetic materials and can be an aluminum pipe, a high-temperature-resistant epoxy pipe, a ceramic pipe and the like, a unidirectional through hole is formed in the bottom of the inner ring sleeve and is used for connecting a cavity body (V), and circulating water in the cavity body (V) enters the inner ring sleeve until the circulating water flows out of an outlet in the top of the inner ring sleeve. The inner ring sleeve, the heating sleeve and the partition boards form a plurality of cavities which are staggered inside. The inner ring sleeve and the heating sleeve form an inner circulation cavity system.

The heating sleeve is an iron magnetic pipe body, and due to the fact that the electromagnetic coil generates high-frequency alternating current, iron atoms inside the heating pipe collide with each other and rub to generate heat energy to heat circulating liquid. The bottom of the heating sleeve is provided with a through hole for enabling water in the first heating cavity to flow into the second heating cavity, and the upper end face and the lower end face of the heating sleeve are welded on the bottom plate and the upper sealing plate. And the three-dimensional labyrinth type circulating water channel is formed by the outer closed pipe, the inner ring sleeve and the partition plate.

The outer closed pipe and the inner ring sleeve are made of nonmagnetic materials, the materials can also be aluminum pipes, high-temperature-resistant epoxy pipes, ceramic pipes and the like, the bottom of the outer closed pipe is provided with a hole for installing a first communication pipe for water inflow, the upper end face and the lower end face of the outer closed pipe are welded or fixedly sealed on the bottom plate and the upper sealing plate, the outer surface of the outer closed pipe is wrapped with a heat-insulating material, and the water temperature of the first heating cavity is lower than that of the second heating cavity due to the fact that the water circulation channel circulates the first heating cavity firstly, so that requirements on the heat-insulating material are not high. The outer closed pipe and the heating sleeve form an outer circulation cavity system.

The utility model discloses electromagnetic heater is as the component part among the heating system, and is supporting with other equipment, for example holding water tank, circulating pump, fin, pipeline etc. to electricity is as energy source.

Claims

1. A three-dimensional labyrinth electromagnetic heater which is characterized in that: comprises an outer shell, a frequency converter, an outer closed tube (205), a heating sleeve (206), a first communicating tube (203) and an electromagnetic coil (201), the frequency converter and the outer closed pipe (205) are fixed in the outer shell, the electromagnetic coil (201) is coiled on the outer side wall of the outer closed pipe (205), the electromagnetic coil (201) is electrically connected with the frequency converter, the heating sleeve (206) is arranged in the outer closed tube (205), a first heating cavity for containing water is formed between the outer side of the heating sleeve (206) and the inner side of the outer closed pipe (205), a first partition plate (208) and a second partition plate (209) are arranged in the first heating cavity, the upper end and the lower end of the first partition plate (208) are fixed with the outer closed pipe (205), a gap is reserved between the upper end of the second partition plate (209) and the outer closed pipe (205), the lower end of the second partition plate is fixed with the outer closed pipe (205), and a through hole (204) is further formed in the heating sleeve (206); two first communication pipes (203) are respectively communicated with the first heating cavity and the interior of the heating sleeve (206).

2. The three-dimensional labyrinth type electromagnetic heater as claimed in claim 1, wherein a third partition plate (210) is further disposed in the first heating chamber, the upper end of the third partition plate (210) is fixed to the outer closed tube (205), a gap is left between the lower end of the third partition plate and the outer closed tube (205), and the second partition plate (209) and the third partition plate (210) are alternately disposed at intervals.

3. The three-dimensional labyrinth type electromagnetic heater as claimed in claim 2, wherein an inner ring sleeve (207) is further arranged in the heating sleeve (206), a second heating cavity for containing water is formed between the outer side of the inner ring sleeve (207) and the inner side of the heating sleeve (206), and the inner ring sleeve (207) is also provided with a through hole (204); the interior of the first heating cavity and the interior of the inner ring sleeve (207) are respectively communicated with the two ends of the heat exchange coil through a first communicating pipe (203).

4. The three-dimensional labyrinth type electromagnetic heater as claimed in claim 3, wherein a first partition plate (208), a plurality of second partition plates (209) and third partition plates (210) alternately arranged with each other are also arranged in the second heating chamber.

5. The three-dimensional labyrinth type electromagnetic heater as claimed in claim 1, wherein a shielding cover (202) is further provided outside the electromagnetic coil (201), a blowdown valve is further provided on the external closed pipe (205), and a plug and a ball valve are further provided on the first communication pipe (203).

6. The three-dimensional labyrinth electromagnetic heater as claimed in claim 1, wherein the material of the heating sleeve (206) is one of aluminum, steel, iron and copper.