CN110243182A - A kind of intermediate frequency furnace leak detection protection system - Google Patents
A kind of intermediate frequency furnace leak detection protection system Download PDFInfo
- Publication number
- CN110243182A CN110243182A CN201910621291.9A CN201910621291A CN110243182A CN 110243182 A CN110243182 A CN 110243182A CN 201910621291 A CN201910621291 A CN 201910621291A CN 110243182 A CN110243182 A CN 110243182A
- Authority
- CN
- China
- Prior art keywords
- furnace
- furnace body
- intermediate frequency
- coil
- lining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 239000000523 sample Substances 0.000 claims abstract description 30
- 230000006698 induction Effects 0.000 claims abstract description 29
- 238000005259 measurement Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 abstract description 22
- 239000007788 liquid Substances 0.000 abstract description 10
- 230000004927 fusion Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/06—Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangement of monitoring devices; Arrangement of safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangement of monitoring devices; Arrangement of safety devices
- F27D21/04—Arrangement of indicators or alarms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangement of monitoring devices; Arrangement of safety devices
- F27D2021/0057—Security or safety devices, e.g. for protection against heat, noise, pollution or too much duress; Ergonomic aspects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangement of monitoring devices; Arrangement of safety devices
- F27D2021/0057—Security or safety devices, e.g. for protection against heat, noise, pollution or too much duress; Ergonomic aspects
- F27D2021/0085—Security or safety devices, e.g. for protection against heat, noise, pollution or too much duress; Ergonomic aspects against molten metal, e.g. leakage or splashes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangement of monitoring devices; Arrangement of safety devices
- F27D21/0021—Devices for monitoring linings for wear
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
The invention discloses a kind of intermediate frequency furnace leak detections to protect system; furnace body including intermediate frequency furnace; furnace lining is equipped on inboard wall of furnace body surface; induction coil is wrapped on the outside of furnace body; a grounded probe is embedded on the furnace lining of furnace body bottom surface, the needle point of grounded probe gos deep into the furnace lining on furnace body bottom surface；Furnace body bottom surface offers grounding connection mouth, a piece-root grafting connecting tube be connected in grounding connection mouth, the needle point of upper part and grounded probe connects, and tube body lower part extends downwardly furnace body, and passes through wired earth；The top layer coil and bottom coil of induction coil are connect with an external power supply respectively, and wherein the output of bottom coil input top layer coil, bottom coil are connect with a leakage measuring set simultaneously, leakage measuring set ground connection.A kind of intermediate frequency furnace leak detection of the invention protects system, the induced current of the metal liquid of furnace interior can be accessed to big Supreme Being, while can react furnace lining current state according to leakage current.
Description
Technical field
The present invention relates to a kind of intermediate frequency furnace leak detections for induction furnace metal smelt field to protect system.
Background technique
When medium-frequency induction furnace is run, the metal liquid of high-temperature fusion is loaded in furnace body；It is high when the thinning damage of furnace lining
Warm molten metal liquid has leakage even to wear the risk of furnace, jeopardizes equipment, the safety of personnel.In addition, the metal of high-temperature fusion
Liquid can generate induced electromotive force under the action of induction field to charge, and may jeopardize and carry out the behaviour such as skim on platform
The staff of work.
Summary of the invention
The purpose of the invention is to overcome the deficiencies of the prior art and provide a kind of intermediate frequency furnace leak detection protection system
System, it can eliminate the electrification in metal liquid, while can be monitored to the performance of furnace lining.
Realizing a kind of technical solution of above-mentioned purpose is: a kind of intermediate frequency furnace leak detection protection system, including intermediate frequency
The furnace body of induction furnace is equipped with furnace lining on inboard wall of furnace body surface, induction coil is wrapped on the outside of furnace body；
A grounded probe, the upper table of the grounded probe are embedded on the furnace lining being set on the furnace body bottom surface
Face is concordant with the furnace lining upper surface on the furnace body bottom surface, and the needle point of the grounded probe gos deep into described on the furnace body bottom surface
In furnace lining；The furnace body bottom surface offers grounding connection mouth, a piece-root grafting connecting tube be connected in the grounding connection mouth, thereon
The needle point of portion and the grounded probe connects, and tube body lower part extends downwardly the furnace body, and passes through wired earth；
The top layer coil and bottom coil of the induction coil are connect with an external power supply respectively, and wherein bottom coil is defeated
Enter top layer coil output, the bottom coil is connect with a leakage measuring set simultaneously, the leakage measuring set ground connection.
Further, the induction coil power supply of the leakage measuring set and intermediate frequency furnace connects.
Further, the leakage measuring set is connect with warning device.
Further, the grounded probe is cone.
Further, the two sides of the interconnecting piece of the grounding connection pipe and the grounded probe are equipped with protection walls.
A kind of intermediate frequency furnace leak detection of the invention protects system, the furnace body including intermediate frequency furnace, in furnace body
Wall surface is equipped with furnace lining, and induction coil is wrapped on the outside of furnace body, is set on the furnace lining on the furnace body bottom surface and buries
There is a grounded probe, the needle point of grounded probe gos deep into the furnace lining on furnace body bottom surface；Furnace body bottom surface offers grounding connection mouth,
One piece-root grafting connecting tube be connected in grounding connection mouth, the needle point of upper part and grounded probe connects, tube body lower part to
Lower stretching furnace body, and pass through wired earth；The top layer coil and bottom coil of induction coil are connect with an external power supply respectively,
Wherein the output of bottom coil input top layer coil, bottom coil are connect with a leakage measuring set simultaneously, leakage measuring set
Ground connection.A kind of intermediate frequency furnace leak detection of the invention protects system, when the metal liquid of high-temperature fusion is in induction field
When generating induced electromotive force under effect, induced current can be accessed the earth by grounded probe to guarantee that metal liquid is not charged；
The present invention devises leakage current measurement circuit simultaneously, and in induction coil two sides pressure voltage, while one end is grounded, and cooperates furnace body bottom
The grounded probe in portion, the measuring circuit form the survey measured to metal liquid to the leakage current between furnace body coil
Circuit is measured, metal liquid and furnace body coil include furnace lining, the current state of furnace lining can be reacted by the leakage current, once furnace lining becomes
It is thin occur runout risk can carry out in time early warning and shut down intervene.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that a kind of intermediate frequency furnace leak detection of the invention protects system.
Specific embodiment
In order to preferably understand technical solution of the present invention, below by specifically embodiment and in conjunction with attached drawing
It is described in detail:
Referring to Fig. 1, a kind of intermediate frequency furnace leak detection of the invention protects system, the furnace body including intermediate frequency furnace
1, it is equipped with furnace lining 2 on inboard wall of furnace body surface, induction coil 3 is wrapped on the outside of furnace body.
A grounded probe 5 is embedded on the furnace lining 2 being set on 1 bottom surface of furnace body, grounded probe 5 is in cone, thereon
Surface is concordant with the furnace lining upper surface on furnace body bottom surface, and tip portion is goed deep into the furnace lining 2 on furnace body bottom surface.The knot of cone
Structure, so that electrical contact preferably can be formed with grounded probe 5 after molten metal 6 covers grounded probe 5 full of furnace body 1,
Detection performance is promoted, the section slowly narrowed downwards enables periphery furnace lining to form preferable protection to grounded probe 5, prevents
It is seeped under molten metal.
1 bottom surface of furnace body offers grounding connection mouth, a piece-root grafting connecting tube 4 be connected in grounding connection mouth, upper part with
The needle point of grounded probe 5 contacts to form electrical connection, and tube body lower part extends downwardly furnace body, and passes through wired earth.Ground connection connects
The two sides of the interconnecting piece of adapter tube 4 and grounded probe 5 are equipped with protection walls, further prevent infiltration under molten metal and leak accident occurs.
When the molten metal 6 of high-temperature fusion generates induced electromotive force under the action of the induction field that induction coil 3 generates
When, these induced currents can be by grounded probe 5, grounding connection pipe 4 by access the earth, to guarantee that metal liquid is not charged.
The top layer coil and bottom coil of induction coil 3 are connect with an external power supply respectively, and wherein bottom coil inputs
Top layer coil output, bottom coil are connect with a leakage measuring set 7 simultaneously, and leakage measuring set 7 is grounded.Cooperate furnace body bottom
The grounded probe 5 in portion, the measuring circuit are formed a leakage current measurement circuit, are equal to the metal in measurement furnace interior
Leakage current between melt 6 and induction coil 3.
When the measuring system works, a DC voltage is added between molten metal 6 and induction coil 3, and measure metal
Leakage current between melt 6 and induction coil 3, in this way according to the principle of R=U/I, so that it may calculate molten metal 6 and induction
Resistance between coil 3.And there are furnace lining 2 between molten metal 6 and induction coil 3, which can directly reflect furnace
The state of lining 2: the thick then resistance of furnace lining 2 is big, and the thin then resistance of furnace lining 2 is small.
When the leakage current between molten metal 6 and induction coil 3 is gradually increased, then show molten metal 6 and induction coil 3
Between resistance become smaller, furnace lining is thinning, can be used as thinning early warning early period of furnace lining.And when leakage current increases above the safety of setting
Value when that is, the proof thinning damage situations of furnace lining are more than safe range, carries out shutting down the replacement with furnace lining, latent to avoid occurring
Runout, even wear furnace risk accidents.Leakage measuring set 7 is connect with the induction coil power supply of intermediate frequency furnace, can be tight
It realizes and automatically powers off when anxious；Leakage measuring set 7 is connect with warning device, and the automatic report to engineer can be realized when urgent
It is alert.After more renewing furnace lining, medium-frequency induction furnace could continue safe and reliable work.
In the present invention, the bottom furnace lining with grounded probe and grounding connection pipe can be used as the standard type of modular assembly
Furnace lining applied, and is combined with other furnace linings, and install convenient is efficient, significant to production safety effect promoting.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as the change in spirit of the invention, to embodiment described above
Change, modification will all be fallen within the scope of claims of the present invention.
Claims (5)
1. a kind of intermediate frequency furnace leak detection protects system, the furnace body including intermediate frequency furnace is equipped on inboard wall of furnace body surface
Furnace lining is wrapped with induction coil on the outside of furnace body, it is characterised in that:
Be embedded with a grounded probe on the furnace lining being set on the furnace body bottom surface, the upper surface of the grounded probe with
Furnace lining upper surface on the furnace body bottom surface is concordant, and the needle point of the grounded probe gos deep into the furnace lining on the furnace body bottom surface
It is interior；The furnace body bottom surface offers grounding connection mouth, a piece-root grafting connecting tube be connected in the grounding connection mouth, upper part with
The needle point of the grounded probe connects, and tube body lower part extends downwardly the furnace body, and passes through wired earth；
The top layer coil and bottom coil of the induction coil are connect with an external power supply respectively, wherein bottom coil input top
The output of layer line circle, the bottom coil are connect with a leakage measuring set simultaneously, the leakage measuring set ground connection.
2. intermediate frequency furnace leak detection according to claim 1 protects system, which is characterized in that the electric leakage measurement dress
It sets and is connect with the induction coil power supply of intermediate frequency furnace.
3. the intermediate frequency furnace leak detection according to claim 1 protects system, which is characterized in that the electric leakage
Measuring device is connect with warning device.
4. the intermediate frequency furnace leak detection according to claim 1 protects system, which is characterized in that the ground connection
Probe is cone.
5. the intermediate frequency furnace leak detection according to claim 1 protects system, which is characterized in that the ground connection
The two sides of the interconnecting piece of connecting tube and the grounded probe are equipped with protection walls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910621291.9A CN110243182A (en) | 2019-07-10 | 2019-07-10 | A kind of intermediate frequency furnace leak detection protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910621291.9A CN110243182A (en) | 2019-07-10 | 2019-07-10 | A kind of intermediate frequency furnace leak detection protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110243182A true CN110243182A (en) | 2019-09-17 |
Family
ID=67891796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910621291.9A Pending CN110243182A (en) | 2019-07-10 | 2019-07-10 | A kind of intermediate frequency furnace leak detection protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110243182A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111750689A (en) * | 2020-07-31 | 2020-10-09 | 安徽富凯特材有限公司 | AOD furnace lining monitoring and early warning system |
| CN112355230A (en) * | 2020-10-20 | 2021-02-12 | 中国第二重型机械集团德阳万航模锻有限责任公司 | High-temperature alloy bar blank heating device and heating method for shaft forgings |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202485415U (en) * | 2012-03-22 | 2012-10-10 | 金川集团股份有限公司 | Runout-preventive alarm device of medium-frequency induction furnace |
| CN202509103U (en) * | 2011-12-23 | 2012-10-31 | 潍坊鼎晟电气科技有限公司 | Furnace lining leakage detector for medium-frequency induction heating furnace |
| KR101447536B1 (en) * | 2013-10-16 | 2014-10-13 | 한미전기로(주) | Metal leak and insulation detector for induction melting furnace |
| CN210399983U (en) * | 2019-07-10 | 2020-04-24 | 无锡应达工业有限公司 | Leakage detection protection system of medium-frequency induction furnace |
-
2019
- 2019-07-10 CN CN201910621291.9A patent/CN110243182A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202509103U (en) * | 2011-12-23 | 2012-10-31 | 潍坊鼎晟电气科技有限公司 | Furnace lining leakage detector for medium-frequency induction heating furnace |
| CN202485415U (en) * | 2012-03-22 | 2012-10-10 | 金川集团股份有限公司 | Runout-preventive alarm device of medium-frequency induction furnace |
| KR101447536B1 (en) * | 2013-10-16 | 2014-10-13 | 한미전기로(주) | Metal leak and insulation detector for induction melting furnace |
| CN210399983U (en) * | 2019-07-10 | 2020-04-24 | 无锡应达工业有限公司 | Leakage detection protection system of medium-frequency induction furnace |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111750689A (en) * | 2020-07-31 | 2020-10-09 | 安徽富凯特材有限公司 | AOD furnace lining monitoring and early warning system |
| CN112355230A (en) * | 2020-10-20 | 2021-02-12 | 中国第二重型机械集团德阳万航模锻有限责任公司 | High-temperature alloy bar blank heating device and heating method for shaft forgings |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190917 |