CN102123533A - Method for protecting induction heating coil by using water temperature relay - Google Patents
Method for protecting induction heating coil by using water temperature relay Download PDFInfo
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- CN102123533A CN102123533A CN 201010615352 CN201010615352A CN102123533A CN 102123533 A CN102123533 A CN 102123533A CN 201010615352 CN201010615352 CN 201010615352 CN 201010615352 A CN201010615352 A CN 201010615352A CN 102123533 A CN102123533 A CN 102123533A
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- China
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- water temperature
- induction coil
- upper limit
- temperature relay
- induction heating
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- General Induction Heating (AREA)
Abstract
The invention discloses a method for protecting an induction heating coil by using a water temperature relay. The method comprises the following steps of: arranging a water temperature sensor at a water outlet close to the induction coil; presetting an upper limit of cooling water temperature, and alarming in an acousto-optic manner once the water temperature exceeds the upper limit; and automatically powering off a heating power supply after reaching preset delay time. The induction heating coil protected by adopting the method disclosed by the invention can ensure that the water temperature of cooling water flowing out of the conduction coil always keeps in the preset upper limit.
Description
Technical field
The present invention relates to a kind of induction heating coolant water temperature protective device, belong to the industrial furnace field, particularly electric induction furnace heating field.
Background technology
Conventional at present induction coil guard method is: into and out of water end (W.E.) hydraulic pressure sensor is installed at the induction coil cooling water, is protected induction coil with this.If cooling water pressure is lower than default lower limit, can cut off heating power supply immediately, the protection induction coil.But when the turnover water route was stopped up or is in closed condition, hydraulic pressure sensor still had hydraulic pressure to show, do not transfinite, and can not cut off heating power supply, thereby might burn induction coil, causes serious accident.
The present invention proposes in the induction coil water side water temperature relay to be installed, and protects induction coil with this.
Summary of the invention
The invention provides a kind of induction coil guard method, overcome the existing technical problem that the hydraulic pressure sensor method exists of installing, its technical scheme is:
In the induction coil water side, near induction coil delivery port place; cooling-water temperature sensor is installed; preestablish the upper limit (20～99 ℃) of coolant water temperature; in case the water temperature at induction coil delivery port place is higher than after the predefined upper limit; can report to the police with the sound (50～120 decibels) of big decibel, the light of flicker immediately; and afterwards, cut off heating power supply automatically at predefined delay time (from 0 second to 10 minutes), reach the purpose of protection induction coil.
Report to the police when water temperature exceeds the upper limit, cut off heating power supply, be too high for fear of the induction coil temperature that is heating, cooling water is overheated even boiling, cause cooling water pipe to soften, collapse out, even burn out induction coil.Because generally can not being low to moderate 0 ℃, coolant water temperature do not freeze, so do not need the set water temperature downscale protection.
Preestablish time-delay, cause the misoperation of transfiniting to cut off heating power supply thereby can avoid coolant water temperature to fluctuate once in a while.This delay time can rule of thumb be set by operating personnel oneself, from 0 second to 10 minutes.If within delay time, water temperature is got back in the limit, and then water temperature relay is failure to actuate, and can not cut off heating power supply.
Beneficial effect is:
Because cooling-water temperature sensor next-door neighbour induction coil delivery port place, and induction coil generally adopts the extraordinary copper tube coiling of heat conduction, in case coolant water temperature transfinites, even if the unexpected stop supplies of cooling water or other abnormal conditions (for example: stop up, water pipe bursts apart etc.), cooling-water temperature sensor is perception immediately, and reports to the police, moves.
Adopt the load coil of this method protection, can guarantee the cooling water temperature that flows out from induction coil all the time in the upper limit of setting, thereby induction coil can use relievedly.
Embodiment 1:
Water temperature relay is installed in the induction coil water side; preestablish water temperature on be limited to 99 ℃; in case coolant water temperature exceeds after the predefined upper limit; can report to the police with 120 decibels sound, the light of flicker immediately; and (that is: do not delay time after 0 second at predefined delay time; the just action immediately as long as transfinite), cut off heating power supply automatically, thereby the protection induction coil is not burnt out.
Embodiment 2:
Water temperature relay is installed in the induction coil water side; preestablish water temperature on be limited to 20 ℃; in case coolant water temperature exceeds after the predefined upper limit; can report to the police with 50 decibels sound, the light of flicker immediately; and after predefined delay time 10 minutes; automatically cut off heating power supply, thereby the protection induction coil is not burnt out.
Embodiment 3:
Water temperature relay is installed in the induction coil water side; preestablish water temperature on be limited to 50 ℃; in case coolant water temperature exceeds after the predefined upper limit; can report to the police with 80 decibels sound, the light of flicker immediately; and at predefined delay time after 5 seconds; automatically cut off heating power supply, thereby the protection induction coil is not burnt out.
Claims (4)
1. method with water temperature relay protection load coil; it is characterized in that: in the induction coil water side, near induction coil delivery port place; cooling-water temperature sensor is installed; preestablish the upper limit of coolant water temperature; the water temperature at induction coil delivery port place be higher than predefined in limited time; promptly produce sound and light alarm, and after predefined delay time, cut off heating power supply automatically.
2. the method with water temperature relay protection load coil according to claim 1 is characterized in that: be limited to 20～99 ℃ on the predefined coolant water temperature.
3. the method with water temperature relay protection load coil according to claim 1, it is characterized in that: the decibel value of alarm sound is between 50～120.
4. the method with water temperature relay protection load coil according to claim 1, it is characterized in that: predefined delay time is between 0 second to 10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010615352 CN102123533A (en) | 2010-12-30 | 2010-12-30 | Method for protecting induction heating coil by using water temperature relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010615352 CN102123533A (en) | 2010-12-30 | 2010-12-30 | Method for protecting induction heating coil by using water temperature relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102123533A true CN102123533A (en) | 2011-07-13 |
Family
ID=44251936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010615352 Pending CN102123533A (en) | 2010-12-30 | 2010-12-30 | Method for protecting induction heating coil by using water temperature relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102123533A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103911588A (en) * | 2014-04-10 | 2014-07-09 | 西安电子科技大学 | Water temperature control circulating cooling system for diffusion pump of vacuum coating machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2300654Y (en) * | 1997-04-18 | 1998-12-16 | 程玉良 | Monitor controller for blast furnace cooling water safety operation |
| CN1460827A (en) * | 2002-05-24 | 2003-12-10 | 三洋电机株式会社 | Absorption type cold/hot water machine |
| CN1810063A (en) * | 2002-04-17 | 2006-07-26 | 维克多产品公司 | Microprocessor controlled heater/cooler system |
| CN201126396Y (en) * | 2007-12-07 | 2008-10-01 | 苏州试验仪器总厂 | Water-cooled electric vibration table catenation protective equipment |
| CN101920299A (en) * | 2009-06-11 | 2010-12-22 | 宝山钢铁股份有限公司 | Steel tube end part inductive heating device with temperature detection system |
-
2010
- 2010-12-30 CN CN 201010615352 patent/CN102123533A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2300654Y (en) * | 1997-04-18 | 1998-12-16 | 程玉良 | Monitor controller for blast furnace cooling water safety operation |
| CN1810063A (en) * | 2002-04-17 | 2006-07-26 | 维克多产品公司 | Microprocessor controlled heater/cooler system |
| CN1460827A (en) * | 2002-05-24 | 2003-12-10 | 三洋电机株式会社 | Absorption type cold/hot water machine |
| CN201126396Y (en) * | 2007-12-07 | 2008-10-01 | 苏州试验仪器总厂 | Water-cooled electric vibration table catenation protective equipment |
| CN101920299A (en) * | 2009-06-11 | 2010-12-22 | 宝山钢铁股份有限公司 | Steel tube end part inductive heating device with temperature detection system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103911588A (en) * | 2014-04-10 | 2014-07-09 | 西安电子科技大学 | Water temperature control circulating cooling system for diffusion pump of vacuum coating machine |
| CN103911588B (en) * | 2014-04-10 | 2016-02-10 | 西安电子科技大学 | For the water temperature controlled circulation cooling system of diffusion pump of vacuum coater |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110713 |