CN2810089Y - Power frequency electric heater unit - Google Patents
Power frequency electric heater unit Download PDFInfo
- Publication number
- CN2810089Y CN2810089Y CN 200520069132 CN200520069132U CN2810089Y CN 2810089 Y CN2810089 Y CN 2810089Y CN 200520069132 CN200520069132 CN 200520069132 CN 200520069132 U CN200520069132 U CN 200520069132U CN 2810089 Y CN2810089 Y CN 2810089Y
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- reserve tank
- liquid reserve
- iron core
- metal ring
- liquid
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Abstract
The utility model relates to a power frequency electric heating device, which includes a ferrite core, a coil curl winding on the ferrite core and a liquid tank provided with a liquid inlet and a liquid outlet. The ferrite core part winding with the coil curl is installed outside the liquid tank; more than two sealed metal loops are installed in the sealed liquid tank, and the sealed metal loops installed around the ferrite core penetrated the liquid tank are used as a heating element; when the coil curl is energized, the sealed metal loops generates eddy current to heat up the liquid in the liquid tank, and the heating power changes along with the quantity of the sealed metal loops in the liquid tank, the sectional area of the sealed metal loops, the circumference of the sealed metal loops and the resistivity of the sealed metal loop material. The electric heating device is provided with the features of uniform heating, safe and reliable operation, fully magnetizing the liquid and long service life.
Description
Technical field
The utility model relates to a kind of power frequency electric heater unit that converts electric energy to magnetic energy.
Background technology
The apparatus and method of currently used line-frequency induction heating liquid; as CN1142706C disclosed " liquid with three-phase main-frequency electromagnetic induction and short-circuit heater and method "; be that iron core and the former limit of three-phase winding all are encapsulated in the metal shell; and metal shell surrounds iron core and the former limit of three-phase winding along the three-phase closed magnetic loop; form the secondary of former limit winding; make metal shell not only as the main heating element of heater; and as the protecting sheathing and the radiator of iron core and the former limit of three-phase winding; with iron core; former limit winding and metal shell all are immersed in the liquid except that the line outlet of junction block; after the winding energized of former limit; then induction produces big electric current in each secondary quoit of metal shell; the secondary of each phase place produces short circuit and the big electric current of three-phase shortcircuit between phase and phase by means of same metal shell conducting, with the liquid around the heating of metal shell.Heater and method with said structure can produce following problem: 1, fail safe is not high.Because iron core and former limit winding are enclosed in the metal shell with epoxy resin, though metal shell is as the radiator of iron core and the former limit of three-phase winding, but the heat that sends when iron core and former limit winding can not and advance to derive and expanded by heating, again because of the coefficient of expansion of resin the coefficient of expansion much larger than metal shell, usually about 10 times, so in use must control the temperature difference of intake-outlet, especially after heater uses a period of time, because the heat that iron core and former limit winding produce concentrates in the epoxy resin, make the epoxy resin huge expansive force of generation and make the metal shell cracking, afterwards can make the winding water inlet short circuit of former limit, cause whole heater to damage.Moreover, increased potential safety hazard because the power line that is connected with former limit winding need pass water tank.2, the metal shell surface area is little, and can produce great temperature gradient in the heat conduction of liquid.Because metal shell and rectangular tube are as heater, and liquid only carries out heat conduction with a side of metal shell and rectangular tube, according to the metal heat exchange area formula of " giving the discharge water design manual ":
F＝1.1～1.2×Q/ε×k×Δt；
Wherein: F-is and water contact heating body surface area;
Q-is a heat consumption;
ε-influence heat transfer efficiency coefficient;
The k-thermal transmission coefficient is got 872{w/m
2℃,
The temperature difference on Δ t-heater surface;
The temperature difference that can derive the heater surface from above-mentioned formula is;
Δt＝1.1～1.2×Q/ε×k×F，
This shows that the surface area of heater surface temperature difference and heater is inversely proportional to, the surface area of heater is more little, and then the temperature difference is big more.Because the heater of this device only is metal shell and rectangular tube, therefore cause the interior heated heated liquid of metal shell outside and rectangular tube very inhomogeneous, during operation, fluid temperature near the metal shell place is very high, relatively then temperature is obviously on the low side away from the liquid of metal shell, so high temperature forms gasification on the metal shell surface and the metal shell surface is corroded.3, inconvenient maintenance.Because metal shell is to surround iron core and the former limit of three-phase winding, be overall structure, can not dismounting, so inconvenient maintenance.4, dosing is inhomogeneous.This heater is by three pipelines liquid to be heated to be delivered to the metal shell place, and wherein, the two tunnel deliver in rectangular tube and the conducting element through arm, because temperature is higher, can produce partial vaporization herein, and it is stifled to form gas, causes flowing water not smooth.5, the water body magnetization is not enough.Because of metal shell is a closed magnetic loop,, therefore can not magnetize water body fully so, have only the leakage field of small part to act on water body for water body.
Summary of the invention
The purpose of this utility model provides a kind of homogeneous heating, and is safe and reliable to operation, and can be to the intact magnetized power frequency electric heater unit of liquid.
For the technical scheme that reaches above-mentioned utility model purpose is: a kind of power frequency electric heater unit, comprise iron core and the coil on the iron core and be provided with inlet and the liquid reserve tank of liquid outlet, the iron core that is wound with coil partly is arranged on the liquid reserve tank outside, closed metal ring more than at least two is arranged in the liquid reserve tank of sealing, and closed metal ring is located at and passes the interior iron core part of liquid reserve tank on every side as heater, behind the coil electricity, closed metal ring produces vortex flow and generates heat, liquid in the liquid reserve tank is heated, and its heating power is laid in the quantity of the closed metal ring in the liquid reserve tank by adjusting, the sectional area of closed metal ring, the resistivity of the girth of closed metal ring and closed metal ring material and changing.
Operation principle of the present utility model is to utilize the eddy electric field that magnetic field intensity produced that changes, make the closed metal ring internal freedom electronics that is looped around the iron core part under the effect of eddy electric field, form vortex current and produce heat, as heater liquid is heated, conducting liquid around the eddy electric field is magnetized and in time discharges energy in it simultaneously, and further improves the efficiency of heating surface.The utility model can be by regulating closed metal ring the resistivity of quantity, sectional area, girth and material control heating power easily.
After the utility model adopted technique scheme: 1, heater was safe.The utility model closed metal ring is arranged in the liquid reserve tank, because heater accumulation schedule area is much larger than the surface area of casing, heat exchange area is big, coil groups and liquid reserve tank are isolated fully in addition, the heat of iron loss and copper loss generation can in time can not only be shed, but also solved the problem of power line insulated enclosure, so the property safe and reliable to operation of whole heater is guaranteed.2, heat exchange area is big.The utility model is owing to adopt a plurality of closed metal rings as heater, therefore in limited space, increased substantially the surface area of heater, compare with the heater of equal volume, making full use of under the prerequisite of volume, the heat transfer sheet area rises to more than 10 times, the periphery surface of closed metal ring all carries out heat exchange with liquid in addition, the heated liquid area is big, heated liquid is even, therefore reduced the temperature on heater surface significantly, avoid the corrosion of metals under the metallic heating body high temperature, prolonged the useful life of heater.3, compact conformation, and scalable heating power.The utility model is owing to adopt a plurality of closed metal rings as heater, volume is little, compactness rational in infrastructure, under identical heating power, can realize optimized design, reduce manufacturing cost, can control heating power by quantity, sectional area, girth and the material of regulating closed metal ring, realize the industrialization modular design, form tandem product.4, liquid better magnetization effect.Because liquid is to be looped around around the magnetic field, therefore can directly magnetize liquid, it is best that magnetizing function reaches.5, heat efficiency height.Because conducting liquid is under the effect of variation magnetic field, the magnetic entropy of generation changes, and energy in discharging, so can further improve the delivery efficiency of heating.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is the structural representation of a kind of power frequency electric heater unit of the present utility model.
Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1.
Fig. 3 is the another kind of structural representation of the utility model power frequency electric heater unit.
Fig. 4 is the A-A sectional structure schematic diagram of Fig. 3.
Fig. 5 is the B-B sectional structure schematic diagram of Fig. 3.
Fig. 6 is another structural representation of the utility model power frequency electric heater unit.
Fig. 7 is the sectional structure schematic diagram of the liquid reserve tank of Fig. 6.
1-liquid reserve tank; 1-1-inlet; 1-2-housing; 1-3-liquid outlet: 1-4-trough plate; 1-5-cover plate; 1-6-deckle board; 2-sealing gasket; 3-coil; 4-iron core; 5-coil rack; 6-closed metal ring; 7-dosing web plate; 8-drain pipe; 9-baffle plate; 10-pivot pin; 11-feed tube.
Embodiment
Power frequency electric heater unit of the present utility model comprises iron core 4 and the coil 3 on the iron core 4 and is provided with inlet 1-1 and the liquid reserve tank 1 of liquid outlet 1-3 shown in Fig. 1-2.Coil 3 is arranged on the both sides of iron core 4 by coil rack 5, this iron core 4 is square or rectangle is circular or oval three rows are arranged side by side, heat with three-phase alternating current, iron core 4 parts that are wound with coil 3 are arranged on liquid reserve tank 1 outside, can shed to the heat that iron core 4 and coil 3 are produced by air or other medium, two with in the closed metal ring 6 connection liquid reserve tanks 1 that are parallel to each other, and closed metal ring 6 be located at pass liquid reserve tank 1 iron core 4 parts two sides around as heater, after coil 3 energisings, iron core 4 forms a closed magnetic loop, and the eddy electric field that the variation magnetic field produced acted on the closed metal ring 6 that is sleeved on around the closed magnetic loop cross section, make closed metal ring 6 its internal freedom electronics form closed vortex flow and produce heat, as heater the liquid in the liquid reserve tank 1 is heated, and be magnetized, and in time discharge in it and can produce heat around the conducting liquid around the eddy electric field that the variation magnetic field produces.The quantity of the utility model closed metal ring 6 can be arranged between the 4-100, and its surface area is far longer than the surface area of liquid reserve tank 1.Its heating power of heater of the present utility model can change by quantity, the sectional area of closed metal ring 6, the girth of closed metal ring 6 and the resistivity of closed metal ring 6 materials that adjusting is laid in the closed metal ring 6 in the liquid reserve tank 1, its heating power is directly proportional with quantity, sectional area, the girth of closed metal ring 6, be inversely proportional to the resistivity of closed metal ring 6 materials, can adopt the lower materials such as iron plate of resistivity to make, closed metal ring 6 of the present utility model can be provided with according to the size and the power output of liquid reserve tank 1, is convenient to modularization production.See that the liquid reserve tank 1 shown in Fig. 1,2 can adopt the stainless steel casing, liquid reserve tank 1 by the housing 1-2 of assembling be enclosed within iron core 4 on and the trough plate 1-4 and the cover plate 1-5 that are connected with housing 1-2 constitute, between the flange joint face on the housing 1-2 and the sealing gasket 2 that insulation is housed between trough plate 1-4 and the cover plate 1-5, the liquid reserve tank 1 that makes housing 1-2 and trough plate 1-4 and cover plate 1-5 formation is under the effect of variation magnetic field, can not form the closed-loop path, and do not generate heat, improve the security reliability of using.For keeping the balance into and out of liquid pressure, the inlet 1-1 of liquid reserve tank 1 and liquid outlet 1-3 are arranged on the diagonal on liquid reserve tank 1 bottom and top, and are connected with feed tube and drain pipe respectively.See that liquid reserve tank of the present utility model shown in Figure 21 bottom also has dosing web plate 7, dosing web plate 7 is evenly equipped with a plurality of liquid hole, and the liquid in the feed tube is delivered to equably in the liquid reserve tank 1 by dosing web plate 7 and carried out heat exchange with closed metal ring 6.
The power frequency electric heater unit of the another kind of structure of the utility model shown in Fig. 3-5, comprises iron core 4 and the coil 3 on the iron core 4 and is provided with inlet 1-1 and the liquid reserve tank 1 of liquid outlet 1-3.Coil 3 is arranged on a side of iron core 4 by coil rack 5, and this iron core 4 is for square or rectangle is circular or oval three arrange and be arranged side by side, and the employing three-phase alternating current heats.Iron core 4 parts that are wound with coil 3 are arranged on liquid reserve tank 1 outside, two outsides of iron core 4 also are provided with baffle plate 9, and by pivot pin 10 connections, two with in the closed metal ring 6 connection liquid reserve tanks 1 that are parallel to each other, and closed metal ring 6 be located at pass liquid reserve tank 1 iron core 4 parts one side around as heater, after coil 3 energisings, iron core 4 forms a closed magnetic loop, and the eddy electric field that the variation magnetic field produced acted on the closed metal ring 6 that is sleeved on around the closed magnetic loop cross section, make closed metal ring 6 its internal freedom electronics form closed vortex flow and produce heat, the liquid in the liquid reserve tank 1 is heated as heater.Liquid reserve tank 1 of the present utility model can adopt the stainless steel casing, liquid reserve tank 1 by the housing 1-2 of assembling be enclosed within iron core 4 on and the deckle board 1-6 that is connected with housing 1-2 constitute, the sealing gasket 2 of insulation is housed between the flange joint face on the housing 1-2, make housing 1-2 under the effect of variation magnetic field, can not form the closed-loop path and produce vortex flow, do not generate heat owing to be arranged on outside housing 1-2, can improve the security reliability of using.Liquid reserve tank 1 has corresponding three inlet 1-1 and three liquid outlet 1-3, and be separately positioned on liquid reserve tank 1 bottom and each self-corresponding diagonal of top, three inlet 1-1 and three liquid outlet 1-3 communicate with feed tube 11 and drain pipe 8 parallel connections respectively, liquid is delivered in the liquid reserve tank 1 equably carried out heat exchange with closed metal ring 6.
The power frequency electric heater unit of above-mentioned two kinds of structures, its iron core 4 can two row or single settings, adopt the one-way communication electricity to heat.
The power frequency electric heater unit of another structure of the utility model shown in Fig. 6-7, comprises iron core 4 and the coil 3 on the iron core 4 and is provided with inlet 1-1 and the liquid reserve tank 1 of liquid outlet 1-3.Coil 3 is arranged on a side of iron core 4 by coil rack 5, this iron core 4 is square or rectangle is circular or oval single setting, adopt the one-way communication electric heating, iron core 4 parts that are wound with coil 3 are arranged on liquid reserve tank 1 outside, closed metal ring 6 is the becket that spirals continuously more than four, closed metal ring 6 be located at pass liquid reserve tank 1 iron core 4 parts one side around as heater, after coil 3 energisings, iron core 4 forms a closed magnetic loop, and the eddy electric field that the variation magnetic field produced acted on the closed metal ring 6 that is sleeved on around the closed magnetic loop cross section, make closed metal ring 6 its internal freedom electronics form closed vortex flow and produce heat, the liquid in the liquid reserve tank 1 is heated as heater.Liquid reserve tank 1 of the present utility model is the stainless steel casing, liquid reserve tank 1 is made of the housing 1-2 that is enclosed within on the iron core 4, in the closed metal ring 6, the outside all is tightly connected with housing 1-2, each closed metal ring 6 is by its side plate sealing, but this side plate five equilibrium is distributed between the adjacent closed metal ring 6, and each closed metal ring 6 has fluid hole 6-1 and communicates with the sap cavity of adjacent closed metal ring 6, closed metal ring 6 also plays the use of drain, inlet 1-1 and liquid outlet 1-3 are arranged on the diagonal on liquid reserve tank 1 bottom and top, be connected with feed tube and drain pipe, liquid delivered in the liquid reserve tank 1 equably carried out heat exchange with closed metal ring 6.
Power frequency electric heater unit of the present utility model is when feeding 380V voltage, and test result sees the following form
| Input voltage V | Input current I | Discharge m 3/h | The Inlet and outlet water temperature difference ℃ |
| 384 | 314.7 | 60.7 | 3.7 |
| 384 | 308.5 | 60.7 | 3.7 |
| 384 | 290.5 | 60.7 | 3.7 |
The heat efficiency of power frequency electricity feeder apparatus of the present utility model as can be seen is 1.29 times of input power, and it is simple in structure, can not only be used for industry, but also can be used for the resident.
Claims (9)
1, a kind of power frequency electric heater unit, comprise iron core (4) and the coil (3) on the iron core (4) and be provided with inlet (1-1) and the liquid reserve tank (1) of liquid outlet (1-3), it is characterized in that: iron core (4) part that is wound with coil (3) is arranged on liquid reserve tank (1) outside, closed metal ring more than at least two (6) is arranged in the liquid reserve tank (1) of sealing, and closed metal ring (6) is located at around iron core (4) part of passing liquid reserve tank (1) as heater.
2, power frequency electric heater unit according to claim 1, it is characterized in that: described liquid reserve tank (1) is a metal cabinet, liquid reserve tank (1) is by the housing (1-2) of assembling and be enclosed within trough plate (1-4) and cover plate (1-5) formation that iron core (4) is gone up and is connected with housing (1-2), between the flange joint face on the housing (1-2) and the sealing gasket (2) that insulation is housed between trough plate (1-4) and the cover plate (1-5), make liquid reserve tank (1) can not form the closed-loop path, the closed metal ring that is parallel to each other (6) connects in the housing (1-2).
3, power frequency electric heater unit according to claim 1, it is characterized in that: described liquid reserve tank (1) is a metal cabinet, liquid reserve tank (1) is by the housing (1-2) of assembling and be enclosed within deckle board (1-6) formation that iron core (4) is gone up and is connected with housing (1-2), the sealing gasket (2) of insulation is housed between the flange joint face on the housing (1-2), make housing (1-2) can not form the closed-loop path, the closed metal ring that is parallel to each other (6) connects in the housing (1-2).
4, power frequency electric heater unit according to claim 1, it is characterized in that: described liquid reserve tank (1) is made of the housing (1-2) that is enclosed within on the iron core (4), closed metal ring (6) is the becket that spirals continuously more than four, the medial and lateral of closed metal ring (6) all are tightly connected with housing (1-2), and each closed metal ring (6) is by the sealing of its side plate, and each closed metal ring (6) has fluid hole (6-1) and communicates with the sap cavity of adjacent closed metal ring (6).
5, according to the described power frequency electric heater unit of one of claim 1 to 4, it is characterized in that: the quantity of described closed metal ring (6) is at 4-100.
6, according to the described power frequency electric heater unit of one of claim 1 to 4, it is characterized in that: described iron core (4) is for square or rectangle is circular or oval, and is single or be arranged side by side more than two layers.
7, according to the described power frequency electric heater unit of one of claim 1 to 4, it is characterized in that: described closed metal ring (6) is enclosed within a side of iron core (4) or is enclosed within two sides of iron core (4) respectively.
8, according to the described power frequency electric heater unit of one of claim 1 to 4, it is characterized in that: the inlet (1-1) and the liquid outlet (1-3) of described liquid reserve tank (1) are arranged on the diagonal on liquid reserve tank (1) bottom and top, and are connected with feed tube (11) and drain pipe (8) respectively.
9, according to the described power frequency electric heater unit in one of claim 1 or 4, it is characterized in that: described bottom at liquid reserve tank (1) also load has the dosing web plate (7) of equal liquid distributing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520069132 CN2810089Y (en) | 2005-02-07 | 2005-02-07 | Power frequency electric heater unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520069132 CN2810089Y (en) | 2005-02-07 | 2005-02-07 | Power frequency electric heater unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2810089Y true CN2810089Y (en) | 2006-08-23 |
Family
ID=36926271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520069132 Expired - Lifetime CN2810089Y (en) | 2005-02-07 | 2005-02-07 | Power frequency electric heater unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2810089Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105682276A (en) * | 2016-04-22 | 2016-06-15 | 成都市新明节能科技有限公司 | Novel electromagnetic eddy current heating device |
-
2005
- 2005-02-07 CN CN 200520069132 patent/CN2810089Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105682276A (en) * | 2016-04-22 | 2016-06-15 | 成都市新明节能科技有限公司 | Novel electromagnetic eddy current heating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU HUACHUANG NEW ENERGY CO., LTD. Free format text: FORMER OWNER: YANG JIAHUA Effective date: 20100304 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 213002 ROOM 602, UNIT D, BUILDING 7, LIFENGYUAN, CHANGZHOU CITY, JIANGSU PROVINCE TO: 214028 518, NORTH BUILDING, INNOVATION AND RESEARCH BUILDING, COLLEGE SCIENCE AND TECHNOLOGY PARK, NO.KGY-YF-11 12 BLOCK, WUXI (TAIHU) INTERNATIONAL SCIENCE AND TECHNOLOGY PARK, WUXI NATIONAL HIGH-TECH INDUSTRY DEVELOPMENT ZONE, WUXI CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100304 Address after: 214028, Wuxi national hi tech Industrial Development Zone, Jiangsu, Wuxi (Taihu) International Science and Technology Park, KGY-YF-11, block 12, University Science Park Innovation Research and development building, 518 North building, Wuxi Patentee after: Jiangsu Huachuang new energy Co. Ltd. Address before: 213002, room 602, Ding 7, Li Feng Yuan, Changzhou, Jiangsu Patentee before: Yang Jiahua |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Hehai New Energy Co., Ltd. Assignor: Jiangsu Huachuang new energy Co. Ltd. Contract record no.: 2010320000582 Denomination of utility model: Power frequency electric heater unit Granted publication date: 20060823 License type: Exclusive License Record date: 20100511 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20060823 Effective date of abandoning: 20050207 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |