CN2570650Y - Flame-out warning device for boiler - Google Patents
Flame-out warning device for boiler Download PDFInfo
- Publication number
- CN2570650Y CN2570650Y CN 02260347 CN02260347U CN2570650Y CN 2570650 Y CN2570650 Y CN 2570650Y CN 02260347 CN02260347 CN 02260347 CN 02260347 U CN02260347 U CN 02260347U CN 2570650 Y CN2570650 Y CN 2570650Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- relay
- warning device
- boiler
- alarm
- 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.)
- Expired - Fee Related
Links
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The utility model provides a flame-out warning device for a boiler. The utility model comprises a photoamplifier circuit, a relay, and a warner which is connected with a contact circuit of the relay; the utility model also comprises a time-base integrated circuit, the input end of the time-base integrated circuit is connected with a circuit of the photoamplifier circuit. The utility model can effectively solve the phenomena of the relay jittering, and can effectively increase the flame-out warning sensitivity of the boiler; thus the utility model can more effectively avoid accidents from occurring.
Description
Technical field
The utility model relates to a kind of warning device, specifically, relates to a kind of time-base integrated circuit that utilizes, to the flame-out warning device of reporting to the police of boiler.
Background technology
Existing boiler flame failure warning device, as shown in Figure 1, when boiler is flame-out suddenly, it produces to report to the police tells the person on duty, so that in time handle, avoids the generation of accident, but this device during flame, is out of tune as sensitivity in surveying burner hearth, and relay is easy to generate jitter phenomenon.Among the figure, L ' N ' connects 220 volts of alternating currents, by obtaining 14 volts alternating current after transformer B1 ', the B2 ' step-down, passes through ZL ' rectification again, and filtering, and the direct current that obtains 12 volts after the voltage stabilizing are as working power.BG1 ' among the figure is the 3DU photoelectric tube, the boiler furnace flame burning of sampling specially situation, and sampled light signal, and BG2 ' is the silicon triode of PNP polarity, BG3 ' is the triode of control relay adhesive.If BG1 ' daylighting was 5 candle power hours, the voltage that O is ordered 〉=0.7 volt, this moment, BG2 ' ended, BG3 ' also ends, relay J ' be failure to actuate.If working as the daylighting of BG1 ' was 4 candle power hours, the voltage that O is ordered is＜0.7 volt, this moment, BG2 ' promptly had amplification, BG3 ' was with regard to conducting when signal was added to the P point of BG3 ', relay J ' adhesive, the boiler warning system will be moved ... be not difficult to find out that the optical signal of BG1 ' sampling will cause relay J between 4～5 candle lights ' shake.
Summary of the invention
The purpose of this utility model is to provide a kind of boiler flame failure warning device, and it can solve the phenomenon of optical signal relay flutter when critical point effectively, and increases the flame-out sensitivity of reporting to the police of boiler effectively, thereby has more effectively avoided the generation of accident.
For achieving the above object, the utility model provides a kind of boiler flame failure warning device, it comprises a photoamplifier circuit, one relay, an alarm that is connected with the contact circuit of this relay, characteristics are that the input that also comprises a time-base integrated circuit, this time-base integrated circuit is connected with this photoamplifier circuit circuit;
Comprise the triode that a photoelectric tube is connected with circuit with it at this photoamplifier circuit;
Said time base circuit output is connected with relay circuit by a light emitting diode;
A said alarm and an indicator lamp are connected in parallel;
Said alarm also is connected in parallel with an exhaust fan;
Described alarm is also forced to forbid that the alarm unit circuit is connected with one; This pressure forbids that alarm unit comprises a relay and from release-push, should be from the normally opened contact parallel connection of release-push and this relay; The normally-closed contact of this relay and the series connection of this alarm.
The utility model utilizes photoelectric tube to carry out boiler furnace internal combustion situation is monitored in real time.Photoelectric tube removes to trigger time-base integrated circuit as the pickoff signals of once popping one's head in, and reaches the purpose of warning by the upset of integrated circuit.Utilize principle of the present utility model, applicable to a lot of fields, for example; Road construction, work by day be over after, light street lighting evening automatically, vehicle and crowd conveniently pass by on one's way; Also can be used for the night illumination of public place; The counting that also can be used for product quantity; And the test of water quality turbidity or the like.
Description of drawings
Fig. 1 is the circuit theory diagrams of warning device in the background technology;
Fig. 2 is circuit theory diagrams of the present utility model.
The specific embodiment
Following according to Fig. 2, a better embodiment of the present utility model is described.
As shown in Figure 2, LN connects 220 volts of alternating currents, by obtaining 14 volts alternating current after transformer B1, the B2 transformation, passes through the ZL rectification again, and filtering, and the direct current that obtains 12 volts after the voltage stabilizing are as working power.In the utility model, comprise one and form a photoamplifier circuit by a phototriode BG1 and a triode BG3, behind the flame in the BG1 sampling boiler furnace, through BG3, electric current flows to 2 pin and 6 pin of time-base integrated circuit NE555, forms high potential, this moment, 3 pin of NE555 were not exported, 2LED does not work, and BG2 ends, and relay also is failure to actuate.When boiler is flame-out, phototriode just sampling less than the flame in the boiler furnace, this moment NE555 2 pin and 6 pin, form electronegative potential, 3 pin of NE555 just have electric current output, 2LED is luminous, BG2 will conducting, the relay J action.The DP lamp is just bright after the J adhesive, and FS steam discharge fan starts, and the DD electric bell sound rises, and tells operator on duty's boiler flame-out, and the processing accident loses no time.The person on duty also can click switch AN can close the tinkle of bells, reduces noise, but light light yellow still, scavenger fan is still in work, and it is normal that the reminds people boiler does not also recover, and after boiler operatiopn was normal, light and fan just can stop.
Utilize time-base integrated circuit can improve the jitter phenomenon of optical signal relay when critical point, equally between 4～5 candle lights, we have a look its operation principle: after BG1 samples the above signal of 5 candle lights, amplify by BG3, at 2 of NE555, more than 6 pin voltage 〉=4 volt, 3 pin of IC are output not, still remains stationary.When the optical signal of BG1 sampling is that 4 candle lights are when following, amplify the back at 2 of NE555 through BG3,6 pin voltage＜4 volt, the IC555 IC interior will overturn this moment, 3 pin of IC555 just have output, electric current makes the BG2 conducting through 2LED and R3, the relay J adhesive, and the warning device corresponding actions of back is got up.If the BG1 photoelectric tube samples optical signal 〉=5 candle lights again this moment, 6～7 candle power hours even, through BG3 amplify the back at 2, the 6 pin voltages of NE555 only between 4～6 volts, the IC interior of certain NE555 can not overturn.This moment is if change NE555 output, and the voltage of 2,6 pin is necessary 〉=more than 8 volts.The optical signal that this moment, the BG1 photoelectric tube was sampled may be that 10 candle lights are above so.
The utility model has thoroughly solved the relay flutter phenomenon that takes place in the background technology.
Claims (6)
1. boiler flame failure warning device, it comprises a photoamplifier circuit, one relay, an alarm that is connected with the contact circuit of this relay are characterised in that, the input that also comprises a time-base integrated circuit, this time-base integrated circuit is connected with this photoamplifier circuit circuit.
2. boiler flame failure warning device as claimed in claim 1 is characterized in that, described photoamplifier circuit comprises the triode that a photoelectric tube is connected with circuit with it.
3. boiler flame failure warning device as claimed in claim 1 or 2 is characterized in that, the output of described time-base integrated circuit is connected with relay circuit by a light emitting diode.
4. boiler flame failure warning device as claimed in claim 1 or 2 is characterized in that, a described alarm and an indicator lamp are connected in parallel.
5. boiler flame failure warning device as claimed in claim 1 or 2 is characterized in that, described alarm also is connected in parallel with an exhaust fan.
6. boiler flame failure warning device as claimed in claim 1 or 2 is characterized in that, described alarm is also forced to forbid that the alarm unit circuit is connected with one; This pressure forbids that alarm unit comprises a relay and from release-push, should be from the normally opened contact parallel connection of release-push and this relay; The normally-closed contact of this relay and the series connection of this alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02260347 CN2570650Y (en) | 2002-09-27 | 2002-09-27 | Flame-out warning device for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02260347 CN2570650Y (en) | 2002-09-27 | 2002-09-27 | Flame-out warning device for boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2570650Y true CN2570650Y (en) | 2003-09-03 |
Family
ID=33727424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02260347 Expired - Fee Related CN2570650Y (en) | 2002-09-27 | 2002-09-27 | Flame-out warning device for boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2570650Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344050A (en) * | 2015-12-07 | 2016-02-24 | 成都伯泰科技有限公司 | Buffer constant-current type forest infrared fireproofing system based on self-control power circuit |
| CN105354965A (en) * | 2015-12-07 | 2016-02-24 | 成都伯泰科技有限公司 | Forest infrared fireproof system based on self-control power supply circuit |
| CN105427503A (en) * | 2015-12-07 | 2016-03-23 | 成都伯泰科技有限公司 | Buffer voltage stabilization type forest infrared fireproof system based on self-control power supply circuit |
| CN105488937A (en) * | 2015-12-07 | 2016-04-13 | 成都伯泰科技有限公司 | Voltage-stabilizing forest infrared fire prevention system based on self-control power circuit |
-
2002
- 2002-09-27 CN CN 02260347 patent/CN2570650Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344050A (en) * | 2015-12-07 | 2016-02-24 | 成都伯泰科技有限公司 | Buffer constant-current type forest infrared fireproofing system based on self-control power circuit |
| CN105354965A (en) * | 2015-12-07 | 2016-02-24 | 成都伯泰科技有限公司 | Forest infrared fireproof system based on self-control power supply circuit |
| CN105427503A (en) * | 2015-12-07 | 2016-03-23 | 成都伯泰科技有限公司 | Buffer voltage stabilization type forest infrared fireproof system based on self-control power supply circuit |
| CN105488937A (en) * | 2015-12-07 | 2016-04-13 | 成都伯泰科技有限公司 | Voltage-stabilizing forest infrared fire prevention system based on self-control power circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102261600A (en) | Induction lighting lamp and induction lighting system | |
| CN2570650Y (en) | Flame-out warning device for boiler | |
| CN110035585A (en) | A kind of lighting control of cities system | |
| CN103661096B (en) | Car bulb system for prompting device lifetime and based reminding method | |
| CN205191929U (en) | Monitoring of portable gas heater and alarm device | |
| CN112654112A (en) | LED control system capable of displaying in Internet of things | |
| CN204805994U (en) | LED lamp that can early warning hazardous gas | |
| CN203131669U (en) | Environment-friendly LED lamp provided with alarming and emergency lighting functions | |
| CN201196354Y (en) | Escaping indicator light | |
| CN204611568U (en) | Intelligent road-lamp | |
| CN102802322A (en) | Touch delayed lamp switch | |
| CN210609783U (en) | Sound control lighting control circuit | |
| CN2852144Y (en) | Cable burglar alarm | |
| CN201573546U (en) | Multifunctional intelligent monitoring instrument for preventing drunk driving | |
| CN101469824B (en) | Solar corridor lamp | |
| CN207334508U (en) | A kind of street lamp | |
| CN206601469U (en) | A kind of ballast accelerating lifetime testing instrument | |
| CN220013467U (en) | Automatic warning sign for road emergency vehicle to pass preferentially | |
| CN202918553U (en) | Intelligent road illumination control system | |
| CN203289709U (en) | An illumination control device | |
| CN203084852U (en) | Electronic touch alarm device | |
| CN2871307Y (en) | Alarming device of taxi | |
| CN101615334A (en) | A kind of anti-anthracemia device | |
| CN106211523B (en) | Safe emergency light | |
| CN2139904Y (en) | Turn indicator light flasher for automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |