CN202110628U - Monocrystalline furnace heating switch trip-out alarm circuit - Google Patents
Monocrystalline furnace heating switch trip-out alarm circuit Download PDFInfo
- Publication number
- CN202110628U CN202110628U CN2011201514610U CN201120151461U CN202110628U CN 202110628 U CN202110628 U CN 202110628U CN 2011201514610 U CN2011201514610 U CN 2011201514610U CN 201120151461 U CN201120151461 U CN 201120151461U CN 202110628 U CN202110628 U CN 202110628U
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- China
- Prior art keywords
- alarm
- switch
- hydraulic pressure
- circuit
- alarm circuit
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a monocrystalline furnace heating switch trip-out alarm circuit, comprising a heating ON-OFF control circuit, a water temperature hydraulic pressure alarm circuit and an alarm which are in series connection successively. The water temperature hydraulic pressure alarm circuit is in parallel with a manually-operated switch and a KM normally close switch which are in series. According to the utility model, the alarm can give an alarm when an eurotherm is abnormal, or when a plc displays abnormality, or when the heating switch trips without reason, and such that tenders can timely discover and process the conditions, and thereby interruption of power supply and generation of accidents can be prevented to avoid economic loss.
Description
Technical field
The utility model relates to a kind of single crystal growing furnace heater switch tripping alarm circuit.
Background technology
In process of production, temperature height amplitude of fluctuation is big in the single crystal growing furnace, particularly needs chilled water circulation cooling during high temperature; In common single crystal growing furnace heater switch tripping alarm circuit; If water temperature, hydraulic pressure is not in normal range, alarm will be reported to the police, at this moment; KM main contacts in the heater switch promptly is in not tripped condition still at attracting state; If water pressure gauge shows no hydraulic pressure, alarm can be reported to the police, but the KM main contacts is an attracting state not, promptly is in tripped condition; These several kinds of situation can be warned people, in time handle.
But, if scenario takes place, the one, the Continental Europe is shown when undesired, and alarm is not reported to the police; And the KM main contacts in the heater switch promptly is in tripped condition at attracting state not; The 2nd, plc shows that when undesired, alarm is not reported to the police, and the KM main contacts in the heater switch promptly is in tripped condition at attracting state not; The 3rd, although water temperature hydraulic pressure is just often sometimes, and the meeting of the KM main contacts in heater switch tripping operation gratuitous, alarm is not also reported to the police; At this moment, find that because of unmanned can cause outage, well heater quits work, crucible temperature descends, and silicon feed liquid face crystallization in the crucible fractures the seed crystal of rotation, the monocrystalline that has drawn is pounded into crucible caused leakage silicon, causes enormous economic loss.
Summary of the invention
The purpose of the utility model provides under any circumstance and all can report to the police, and prevents a kind of single crystal growing furnace heater switch tripping alarm circuit of outage.
The technical scheme that the utility model is taked is: a kind of single crystal growing furnace heater switch tripping alarm circuit; Comprise the heater switch control circuit, water temperature hydraulic pressure warning circuit and the alarm that are serially connected successively; It is characterized in that on water temperature hydraulic pressure warning circuit parallel connection hand switch and KM normally closed switch, and hand switch and KM normally closed switch are connected.
Adopt the utility model, no matter the Continental Europe table is undesired, or the plc demonstration is undesired; Or tripping operation gratuitous takes place in heater switch, and alarm will be reported to the police, and the operative employee can in time be found and handle; Thereby avoid cutting off the power supply and having an accident, prevent to cause economic loss.
Description of drawings
Fig. 1 is the synoptic diagram of the utility model.
Sequence number is represented among the figure: heater switch control circuit 1, water temperature hydraulic pressure warning circuit 2, alarm 3, hand switch 4 and KM normally closed switch 5.
Embodiment
Embodiment below in conjunction with concrete is described further the utility model.
With reference to Fig. 1; This single crystal growing furnace heater switch tripping alarm circuit comprises heater switch control circuit 1, water temperature hydraulic pressure warning circuit 2 and the alarm 3 that is serially connected successively; On water temperature hydraulic pressure warning circuit 2 parallel connection hand switch 4 and KM normally closed switch 5, and hand switch 4 and 5 series connection of KM normally closed switch.
During use, if single crystal growing furnace does not heat, hand switch 4 is in disconnects state; When if single crystal growing furnace need heat, hand switch 4 to be connected, electric current passes through KM normally closed switch 5 again through switch, KM normally closed switch 5 disconnections this moment, alarm 3 does not ring; If the not adhesive of KM main contacts accident promptly is in tripped condition, well heater stops heating, KM normally closed switch 5 closures then, and alarm 3 is just reported to the police automatically.
Claims (1)
1. single crystal growing furnace heater switch tripping alarm circuit; Comprise the heater switch control circuit, water temperature hydraulic pressure warning circuit and the alarm that are serially connected successively; It is characterized in that on water temperature hydraulic pressure warning circuit parallel connection hand switch and KM normally closed switch, and hand switch and KM normally closed switch are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201514610U CN202110628U (en) | 2011-05-11 | 2011-05-11 | Monocrystalline furnace heating switch trip-out alarm circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201514610U CN202110628U (en) | 2011-05-11 | 2011-05-11 | Monocrystalline furnace heating switch trip-out alarm circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202110628U true CN202110628U (en) | 2012-01-11 |
Family
ID=45436074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201514610U Expired - Fee Related CN202110628U (en) | 2011-05-11 | 2011-05-11 | Monocrystalline furnace heating switch trip-out alarm circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202110628U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108796608A (en) * | 2018-07-10 | 2018-11-13 | 山西中聚晶科半导体有限公司 | A kind of sapphire single-crystal furnace cooling device |
-
2011
- 2011-05-11 CN CN2011201514610U patent/CN202110628U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108796608A (en) * | 2018-07-10 | 2018-11-13 | 山西中聚晶科半导体有限公司 | A kind of sapphire single-crystal furnace cooling device |
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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: 20120111 Termination date: 20170511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |