CN211124305U - Anti-misoperation ultraviolet flame sensor - Google Patents
Anti-misoperation ultraviolet flame sensor Download PDFInfo
- Publication number
- CN211124305U CN211124305U CN202020098185.5U CN202020098185U CN211124305U CN 211124305 U CN211124305 U CN 211124305U CN 202020098185 U CN202020098185 U CN 202020098185U CN 211124305 U CN211124305 U CN 211124305U
- Authority
- CN
- China
- Prior art keywords
- circuit
- ultraviolet
- signal
- ultraviolet ray
- tube
- 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.)
- Active
Links
Images
Landscapes
- Fire-Detection Mechanisms (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The utility model discloses a prevent ultraviolet flame sensor of malfunction, including the ultraviolet ray receiver tube that is used for receiving flame ultraviolet ray signal, still including the signal processing circuit who is used for signal plastic processing, be used for carrying out the signal analysis to the signal after the shape processing and reacing the signal analysis circuit of ultraviolet ray receiver tube alarm threshold value and storage, the output and the signal processing circuit electric connection of ultraviolet ray receiver tube, signal processing circuit and signal analysis circuit connection. The signal analysis circuit stores signals sent by the ultraviolet receiving tube when receiving flame ultraviolet signals and corresponding alarm thresholds, so that self-learning of the difference of the output signals of the single ultraviolet tube is realized, corresponding alarm threshold parameters are obtained, and the problem that the alarm thresholds cannot be set to the maximum due to the difference of the output signals of the ultraviolet tube is avoided.
Description
Technical Field
The utility model relates to a flame sensor technical field especially indicates an ultraviolet ray flame sensor who prevents malfunction.
Background
In the prior art, when gas is conveyed through an extraction pipeline in a coal mine, the gas is often accompanied by coal dust and other flammable derived gases in a coal bed when the gas is extracted from the extraction pipeline, once gas explosion occurs in the pipeline, the derived gases are often accompanied by combustion, and thus serious safety accidents are easily caused. In the prior art, an ultraviolet flame sensor for preventing false actions is usually arranged to detect a flame signal, and once an explosion phenomenon occurs, the ultraviolet flame sensor for preventing false actions is timely triggered and sends out a signal in a very short time, and a subsequent controller controls corresponding equipment to play a protection role.
However, when the ultraviolet flame sensor for preventing false operation in the prior art is arranged, only one ultraviolet flame sensor for preventing false operation is generally arranged in a short distance, and due to the fact that the underground condition of a mine pipeline is complex, the ultraviolet rays emitted by external interference such as lamplight, sunlight and the like often cause the false triggering of an external flame sensor, so that equipment connected in series with the ultraviolet flame sensor causes false operation, and great trouble is brought to coal mine operators and ground monitoring personnel.
SUMMERY OF THE UTILITY MODEL
The utility model provides a prevent ultraviolet flame sensor of malfunction has solved among the prior art because of the ultraviolet ray that external disturbance such as light, sunlight sent arouses the spurious triggering of being outside line flame sensor to the equipment that makes it establish ties arouses the malfunction, brings the problem of very big puzzlement for coal mine operation personnel and ground monitoring personnel.
The technical scheme of the utility model is realized like this:
An anti-misoperation ultraviolet flame sensor comprises an ultraviolet receiving tube, a signal processing circuit and a signal analyzing circuit, wherein the ultraviolet receiving tube is used for receiving flame ultraviolet signals, the signal processing circuit is used for shaping the signals, the signal analyzing circuit is used for analyzing the shaped signals to obtain and store an alarm threshold value of the ultraviolet receiving tube, the output end of the ultraviolet receiving tube is electrically connected with the signal processing circuit, and the signal processing circuit is connected with the signal analyzing circuit.
As a preferred embodiment of the utility model, still include power supply circuit, power supply circuit does the ultraviolet ray receiver tube supplies power.
As a preferred embodiment of the present invention, the power circuit includes an oscillating circuit and a voltage boosting circuit, the oscillating circuit outputs a switching frequency to the voltage boosting circuit, and the voltage boosting circuit supplies power to the ultraviolet ray receiving tube.
As a preferred embodiment of the present invention, the present invention further comprises an alarm circuit, wherein the alarm circuit is electrically connected to the signal analyzing circuit.
As a preferred embodiment of the utility model, the signal processing circuit includes the amplitude limiting circuit and the circuit of making an uproar of removing, the amplitude limiting circuit with the circuit electric connection of making an uproar of removing.
As a preferred embodiment of the utility model, still including the sensor shell that has the cavity, the ultraviolet ray receiver tube is fixed in the cavity, the one end of sensor shell is equipped with the transparent window, and the other end is equipped with the data interface who is used for output signal.
As a preferred embodiment of the present invention, the sensor housing includes a housing, a rear cover and a front cover, the rear cover is fixed to the rear end of the housing, the front cover is fixed to the front end of the housing, the data interface is fixed to the rear cover, and the transparent plate, the ultraviolet receiving tube and the PCB board are fixed to the inside of the cavity from the front.
The beneficial effects of the utility model reside in that: the signal analysis circuit stores signals sent by the ultraviolet receiving tube when receiving flame ultraviolet signals and corresponding alarm thresholds, so that self-learning of the difference of the output signals of the single ultraviolet tube is realized, corresponding alarm threshold parameters are obtained, and the problem that the alarm thresholds cannot be set to the maximum due to the difference of the output signals of the ultraviolet tube is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic block diagram of an anti-malfunction ultraviolet flame sensor of the present invention;
FIG. 2 is a circuit schematic of the boost circuit;
FIG. 3 is a schematic circuit diagram of the ultraviolet ray receiving tube;
FIG. 4 is a circuit schematic of the signal processing circuit;
FIG. 5 is a circuit schematic of the signal analysis circuit;
FIG. 6 is a circuit schematic of the alarm circuit;
Fig. 7 is a schematic structural diagram of the ultraviolet flame sensor for preventing malfunction according to the present invention.
In the figure, 1-ultraviolet ray receiving tube; 2-a signal processing circuit; 3-a signal analysis circuit; 4-an oscillating circuit; 5-a boost circuit; 6-an alarm circuit; 7-sensor housing; 701-a shell; 702-hexagon socket countersunk head screw; 703-a rear cover; 704-an aviation plug; 705-a first O-ring; 706-spider head screw; 707-copper studs; 708-a PCB fixation sleeve; 709-flat washer; 710-a spring washer; 711-hex locknut; 712-a front cover; 713-sealing gaskets; 714-quartz glass; 715-second O-ring seal.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1-6, the utility model provides an prevent ultraviolet flame sensor of malfunction, including the ultraviolet ray receiver tube 1 that is used for receiving flame ultraviolet ray signal, still including the signal processing circuit 2 that is used for signal shaping processing, be used for carrying out the analysis to the signal after shaping processing and reacing the signal analysis circuit 3 that ultraviolet ray receiver tube 1 reported to the police the threshold value and save, the output and the signal processing circuit 2 electric connection of ultraviolet ray receiver tube 1, signal processing circuit 2 is connected with signal analysis circuit 3.
The flame irradiates the ultraviolet receiving tube 1, the ultraviolet receiving tube 1 outputs signals, the signals enter the signal processing circuit 2, the signals after signal processing and shaping are output and transmitted to the signal analysis circuit 3, and after passing through the analysis module, the alarm threshold parameters are calculated and stored in the storage module.
The utility model discloses still include power supply circuit, power supply circuit is the power supply of ultraviolet ray receiver tube 1. The power supply circuit comprises an oscillating circuit 4 and a booster circuit 5, the oscillating circuit 4 outputs switching frequency to the booster circuit 5, and the booster circuit 5 supplies power to the ultraviolet receiving tube 1. The oscillating circuit 4 mainly functions to provide the switching frequency for the voltage boost circuit 5, adjust the resistor VR, and drive the voltage boost circuit 5 to output a rated voltage value. The booster circuit 5 supplies electric energy to the ultraviolet tube.
The signal processing circuit 2 comprises an amplitude limiting circuit and a denoising circuit, and the amplitude limiting circuit is electrically connected with the denoising circuit. And the output signal of the ultraviolet receiving tube 1 is subjected to amplitude limiting and denoising treatment, and then a square wave is output to the signal analysis circuit 3. The signal analysis circuit 3 reads the shaped signal, analyzes the frequency and the pulse width of the signal, and stores the analysis result into a memory in the module.
The utility model discloses still include alarm circuit 6, alarm circuit 6 and signal analysis circuit 3 electric connection. The alarm circuit 6 is used for sending out an alarm signal under the control of the signal analysis circuit 3.
As shown in fig. 7, the utility model discloses still including the sensor shell 7 that has the cavity, ultraviolet ray receiver tube 1 and power supply circuit are fixed in the cavity, and the one end of sensor shell 7 is equipped with the transparent window, and the other end is equipped with the data interface who is used for output signal. The sensor shell 7 comprises a shell 701, a rear cover 703 and a front cover 712, wherein the rear cover 703 is fixed at the rear end of the shell 701 through an inner hexagon countersunk head screw 702, a first O-shaped sealing ring 705 is arranged at the joint of the rear cover 703 and the shell 701, the front cover 712 is fixed at the front end of the shell 701, a second O-shaped sealing ring 715 is arranged at the joint of the front cover 712 and the front end of the shell 701, a data interface, namely an aviation plug 704 is fixed on the rear cover 703, and a quartz glass 714, an ultraviolet receiving tube 1 and a PCB are fixed in the cavity from front to back. The PCB is fixed in the cavity through a PCB fixing sleeve 708, the ultraviolet receiving tube 1 is fixedly connected with the PCB through a copper stud 707, one end of the copper stud 707 is provided with a flat washer 709, a spring washer 710 and a hexagonal locking nut 711, and the other end is a cross pan head screw 706, and the two sides of the quartz glass 714 are respectively contacted and fixed with the shell 701 and the front cover 712 through a sealing washer 713.
The beneficial effects of the utility model reside in that: the signal analysis circuit 3 stores signals sent by the ultraviolet receiving tube 1 when receiving flame ultraviolet signals and corresponding alarm thresholds, so that self-learning of the difference of the output signals of the single ultraviolet tube is realized, corresponding alarm threshold parameters are obtained, and the problem that the alarm thresholds cannot be set to the maximum due to the difference of the output signals of the ultraviolet tube is avoided.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an prevent ultraviolet flame sensor of malfunction, includes the ultraviolet ray receiving tube that is used for receiving flame ultraviolet ray signal, its characterized in that: the ultraviolet ray receiver tube alarm device is characterized by further comprising a signal processing circuit used for signal shaping processing and a signal analysis circuit used for analyzing signals after shaping processing to obtain and store an alarm threshold value of the ultraviolet ray receiver tube, wherein the output end of the ultraviolet ray receiver tube is electrically connected with the signal processing circuit, and the signal processing circuit is connected with the signal analysis circuit.
2. The ultraviolet flame sensor of claim 1, wherein: the ultraviolet ray receiving tube is characterized by further comprising a power supply circuit, wherein the power supply circuit supplies power to the ultraviolet ray receiving tube.
3. The ultraviolet flame sensor for preventing malfunction according to claim 2, wherein: the power supply circuit comprises an oscillating circuit and a booster circuit, the oscillating circuit outputs switching frequency to the booster circuit, and the booster circuit supplies power to the ultraviolet receiving tube.
4. The ultraviolet flame sensor of claim 1, wherein: still include alarm circuit, alarm circuit with signal analysis circuit electric connection.
5. The ultraviolet flame sensor of claim 1, wherein: the signal processing circuit comprises an amplitude limiting circuit and a denoising circuit, and the amplitude limiting circuit is electrically connected with the denoising circuit.
6. The ultraviolet flame sensor of claim 1, wherein: the ultraviolet receiving tube is fixed in the cavity, one end of the sensor shell is provided with a transparent window, and the other end of the sensor shell is provided with a data interface for outputting signals.
7. The ultraviolet flame sensor of claim 6, wherein: the sensor shell comprises a shell, a rear cover and a front cover, wherein the rear cover is fixed at the rear end of the shell, the front cover is fixed at the front end of the shell, the data interface is fixed on the rear cover, and the transparent sheet, the ultraviolet receiving tube and the PCB are fixed in the cavity from front to back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020098185.5U CN211124305U (en) | 2020-01-16 | 2020-01-16 | Anti-misoperation ultraviolet flame sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020098185.5U CN211124305U (en) | 2020-01-16 | 2020-01-16 | Anti-misoperation ultraviolet flame sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211124305U true CN211124305U (en) | 2020-07-28 |
Family
ID=71705602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020098185.5U Active CN211124305U (en) | 2020-01-16 | 2020-01-16 | Anti-misoperation ultraviolet flame sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211124305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111260877A (en) * | 2020-01-16 | 2020-06-09 | 西安博深安全科技股份有限公司 | Self-learning anti-misoperation ultraviolet flame sensor and self-learning method |
-
2020
- 2020-01-16 CN CN202020098185.5U patent/CN211124305U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111260877A (en) * | 2020-01-16 | 2020-06-09 | 西安博深安全科技股份有限公司 | Self-learning anti-misoperation ultraviolet flame sensor and self-learning method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205281716U (en) | Kitchen intelligent security alarm system | |
| CN106292434B (en) | A kind of watchdog circuit for automobile electronic controller | |
| CN211124305U (en) | Anti-misoperation ultraviolet flame sensor | |
| CN209447308U (en) | Kitchen fire prevention leakage alarm equipment | |
| CN109707239A (en) | A kind of door lock assembly and detection method of machine photoelectric combination detection door switch state | |
| CN111260877A (en) | Self-learning anti-misoperation ultraviolet flame sensor and self-learning method | |
| CN207489207U (en) | A kind of fire-fighting host system with long-distance intelligent control | |
| CN204791387U (en) | Intelligence smoke detector | |
| CN108199477A (en) | Substation's ac and dc systems fault remote intelligent control method and equipment | |
| CN216310986U (en) | Detection apparatus for intelligence electric fire monitored control system | |
| CN101685110B (en) | Variable frequency memory alternating current acousto-optic electroscope | |
| CN211207453U (en) | Intelligent comprehensive safety monitoring node equipment for laboratory | |
| CN112838674B (en) | Ground wire monitoring terminal | |
| CN205656738U (en) | Electric arc nature electric fire early warning device | |
| CN204348020U (en) | Environmental friendly indoor safety monitoring system | |
| CN212256535U (en) | High-performance single ultraviolet optical fire detector | |
| CN114440981A (en) | Wisdom electric wire netting switch board alarm device and switch board | |
| CN210324495U (en) | Spark auto-induction discernment sensor | |
| CN109659713A (en) | A kind of earthing or grounding means that can detect conduction automatically | |
| CN111426920A (en) | Fire/arc detection device and method applied to high-voltage direct-current transmission converter valve | |
| CN205516080U (en) | But quick automatic carbon dioxide fires datonation -inhibition system | |
| CN215961250U (en) | Solar ultraviolet disinfection device | |
| CN205539532U (en) | Safety light curtain system | |
| CN209748265U (en) | electric energy quality monitoring device | |
| CN221194544U (en) | Intelligent alarm safety fence |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |