CN205017615U - No water -cooling induction heater - Google Patents
No water -cooling induction heater Download PDFInfo
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- CN205017615U CN205017615U CN201520575106.4U CN201520575106U CN205017615U CN 205017615 U CN205017615 U CN 205017615U CN 201520575106 U CN201520575106 U CN 201520575106U CN 205017615 U CN205017615 U CN 205017615U
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Abstract
The utility model relates to an induction heating material field, the no water -cooling induction heater of one kind concretely relates to all kinds of high temperature equipment that the environmental protection was used down to inert gas, it includes induction coil, response mark target and induction power supply, and induction coil be graphite induction coil or two silication molybdenum induction coil, and response mark target is graphite response mark target, and induction coil heats response mark target, and induction power supply be the line -frequency induction or the intermediate frequency is responded to, responds to to mark the target and fix on the erection support. No water -cooling induction heater and heating object contactless, rely on heat transfer's mechanism heating target material, guarantee good electric insulation performance, response mark target heat transfer to the industrial furnace in by the heating member or heat whole furnace. The partly of heater heat producing capability is also regarded as to induction coil's self -heating, the loss that can not bring the energy.
Description
Technical field
The utility model relates to induction heating Material Field, specifically, relates to a kind of Non-water-cooled induction heater of all kinds of high-temperature services for using under inert gas shielding environment, adopts power frequency or Frequency Induction Heating, realizes the energy-efficient heating to equipment.
Background technology
The traditional mode of heating of electric-heating technology roughly has following several: resistance heating, induction heating.The advantages such as resistance heating manner is modal Electric heating, has simple, reliable, the mode of induction heating also occupies an important position with advantages such as its exclusive heating are quick, energy-conservation.
Traditional resistance-type graphite heating body structural representation as Fig. 2, the link electrode 5 comprising graphite heater 4 and be connected with graphite heating pipe, resistance-type calandria can adopt multiple different material to make, as resistance wire, Elema, Si-Mo rod, graphite rod/pipe etc.What we mainly paid close attention to is graphite rod/graphite-pipe as resistance-type calandria, some difficulty and inferior positions of itself existing:
The material character of 1 > graphite determines graphite-pipe or graphite rod must make enough large size to ensure the physical strength of calandria.
The resistance of 2 > graphite heating body is very little, is generally all less than 0.1 Europe.So in order to provide enough heating powers, the electric current flowing through graphite heating body is very large.Can calculate according to Ohm's law.General meeting in a few kiloampere to more than 10,000 amperes.
3 >, in order to enough large electric current is transported in graphite heating body, must configure the lead ends (be generally also graphite material) larger than graphite heating body sectional area.The sectional area of lead ends is larger, and its resistance is less, and electrical loss is also less.But heat conduction losses then can be proportional to its sectional area.That is, reduce electrical loss, but add thermal losses.
4 > graphite heating body are in use lossy, and graphite rod can be tapered.Loss just needs to change graphite heating body to certain degree.So requirement from its robustness, we wish that graphite heating body diameter is more better larger, but its resistance of the graphite heating body of larger diameter is less, and the electric current of needs is larger, and supporting lead ends also can be larger, and heat conduction loss also can correspondingly increase.
Traditional induction heating mode uses copper pipe to make coil, to the logical upper power frequency of copper pipe or intermediate frequency or high frequency alternating current, copper tube coil produces alternating magnetic field, is placed on coil inside by the workpiece heated, alternating magnetic field produces eddy current in workpiece, and workpiece is by eddy heating for heating.Wherein, pass to cooling water in copper tube coil and coil is cooled, to protect coil not by high temperature failure.
Gap between coil and workpiece is less, and the efficiency of heating surface is higher.But; the workpiece being heated to high temperature can pass to copper coil heat; except vacuum environment; gap between coil and workpiece is less; the heat that workpiece passes to copper coil is more, in order to ensure coil safety, must pass to enough cooling waters and carrying out cooling protection to coil; obviously, a large amount of heat energy water-band that is cooled has been walked.In addition, the internal resistance heating of induction coil is harmful to coil, so traditional induction coil is all the internal resistance reducing coil as far as possible.In addition, induction heating is generally used for the heat treatment process directly to metal parts.
Utility model content
The purpose of this utility model is to provide a kind of heater, can replace the heater of resistance-type in an inert atmosphere and be applied in various atmosphere furnace and vacuum furnace as the Non-water-cooled induction heater that calandria uses.
A kind of Non-water-cooled induction heater described in the utility model; as the industrial furnace heater under protective atmosphere environment; comprise induction coil, induction target and induction power supply; induction coil is graphite induction coil or molybdenum disilicide induction coil; induction target is graphite induction target; induction coil heats induction target, and induction power supply is line-frequency induction or Medium frequency induction, and induction target is fixed on erection support.
By passing to power frequency or electric current of intermediate frequency to coil, graphite coil produces alternating magnetic field, and alternating magnetic field produces eddy current and induction target is heated in the induction target of inside.By the principle of induction heating, utilize the high-temperature stability of graphite, be designed to a kind of induction graphite heater, owing to adopting graphite coil, so do not need cooling water to remove cooling coil.
Because induction heating uses line voltage, for 220V or 380V, do not need to configure step-down transformer, the frequency of induction power supply calculates according to actual demand to be determined, can be line-frequency induction or Medium frequency induction, the heating installation power supply voltage of resistance-type is generally not more than 50V, so compare with the heating of resistance-type, voltage improves 4 ~ 7 times; When Same Efficieney, electric current is reduced to 1/7 ~ 1/4.So the sectional area of heater link electrode is reduced to 1/7 ~ 1/4.The heat conduction loss of terminals is also reduced to 1/7 ~ 1/4.
Non-water-cooled induction heater described in the utility model, can heat burner hearth as general heater, and also induction target can be made cylinder, to the product in cylinder, as machine components class, filament series products carries out heat treated.
Non-water-cooled induction heater described in the utility model does not contact with heating object, relies on the mechanism heat target material of radiant heat transfer, guarantees good electrical insulation properties, and induction target is delivered to the heated object in industrial furnace heat or heats whole burner hearth.The self-heating of induction coil, also as a part for heater calorific capacity, can not bring the loss of energy.The internal resistance of graphite coil is here as useful internal resistance heating, and its heat is also utilized by furnace chamber.
Accompanying drawing explanation
Accompanying drawing 1 is the principle schematic of Non-water-cooled induction heater;
Accompanying drawing 2 is resistance-type graphite heating body structural representation;
In figure: 1, induction coil, 2, induction target, 3, erection support, 4, graphite heater, 5, link electrode.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Embodiment 1
A kind of Non-water-cooled induction heater designed and produced as shown in Figure 1; the cold induction heater of a kind of high-temperature anhydrous; as the industrial furnace heater under protective atmosphere environment; comprise induction coil 1, induction target 2 and induction power supply; induction coil 1 is graphite induction coil; induction target 2 is graphite induction target; graphite induction target is arranged in the middle of graphite induction coil; graphite induction coil carries out induction heating to graphite induction target; induction power supply is line-frequency induction or Medium frequency induction, and induction target 1 is fixed on erection support 3.Wherein graphite induction target is a graphite crucible, for placing by heated components in graphite crucible.
Embodiment 2
A kind of Non-water-cooled induction heater, the difference of its structure and embodiment 1 is that induction coil 1 is molybdenum disilicide induction coil.
A kind of Non-water-cooled induction heater shown in above-mentioned example, owing to not having specialized designs cooling device in electrode connection part, institute thinks that guarantee graphite electrode is not oxidized, can only allow to operate in below 800C.If need higher temperature to run, being necessary for graphite electrode increases sealing device, prevents graphite and air from reacting.Meanwhile, a set of like this experimental provision, must use nitrogen or argon gas as protective gas during operation.
Must Chen Ming, the above is preferred embodiment of the present utility model, if the change done with conception of the present utility model, its function produced do not exceed that specification and diagram contain yet spiritual time, all should in scope of the present utility model.
Claims (2)
1. a Non-water-cooled induction heater; as the industrial furnace heater under protective atmosphere environment; it is characterized in that: comprise induction coil, induction target, induction power supply and mounting seat; described induction coil is graphite induction coil or molybdenum disilicide induction coil; described induction target is graphite induction target; described induction target is arranged in the middle of induction coil; described induction coil carries out induction heating to induction target; described induction power supply is line-frequency induction or Medium frequency induction, and described induction target is fixed on erection support.
2. a kind of Non-water-cooled induction heater according to claim 1, is characterized in that: described induction target is cylinder-like structure, for placing heating object in cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520575106.4U CN205017615U (en) | 2015-07-31 | 2015-07-31 | No water -cooling induction heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520575106.4U CN205017615U (en) | 2015-07-31 | 2015-07-31 | No water -cooling induction heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205017615U true CN205017615U (en) | 2016-02-03 |
Family
ID=55216196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520575106.4U Expired - Fee Related CN205017615U (en) | 2015-07-31 | 2015-07-31 | No water -cooling induction heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205017615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107484283A (en) * | 2017-09-19 | 2017-12-15 | 青岛海信日立空调系统有限公司 | Electric heater unit, condenser and air conditioner |
-
2015
- 2015-07-31 CN CN201520575106.4U patent/CN205017615U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107484283A (en) * | 2017-09-19 | 2017-12-15 | 青岛海信日立空调系统有限公司 | Electric heater unit, condenser and air conditioner |
| CN107484283B (en) * | 2017-09-19 | 2020-06-26 | 青岛海信日立空调系统有限公司 | Electric heating device, condenser and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20160731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |