CN209069521U - A kind of fluorescence oil plant leak sensor - Google Patents
A kind of fluorescence oil plant leak sensor Download PDFInfo
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- CN209069521U CN209069521U CN201821866110.6U CN201821866110U CN209069521U CN 209069521 U CN209069521 U CN 209069521U CN 201821866110 U CN201821866110 U CN 201821866110U CN 209069521 U CN209069521 U CN 209069521U
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- oil plant
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Abstract
The utility model discloses a kind of fluorescence oil plant leak sensors, are made of optical component and measuring circuit, and the optical component is made of ultra-violet laser source and fluorescence detector, and UV light path is equipped between the ultra-violet laser source and fluorescence detector；Narrow band filter is arranged in the optical path inlet of the fluorescence detector, the fluorescence detector is internally provided with photodiode, the photodiode output is electrically connected with the controller by signal conditioning circuit, A/D converter circuit, the controller output connection RS232 interface circuit, the controller exports connecting analog voltage output circuit, and the controller output is electrically connected by timing circuit with ultra-violet laser source.Fluorescent effect principle of the utility model based on oil plant, using UV detection mode, monitoring accuracy height, strong environmental adaptability, reliable and stable, the oil plant leak detection suitable for the oil plants spillage risk region such as oil plant, oil pipeline, pump room, waters.
Description
Technical field
The utility model relates to oil plant leakage monitor technical fields, specifically disclose a kind of fluorescence oil plant leakage sensing
Device.
Background technique
Oil plant leakage can bring serious economic loss and security risk.Oil plant leakage can cause seriously to pollute and explode
Danger even can cause casualties etc. major accidents for the oil plant leakage of toxic gas volatilization, therefore oil plant leaked
It needs to be monitored and early warning.Oil plant leakage monitoring more commonly used at present still uses traditional buoy monitoring mode and ultrasound
Wave monitoring mode.
In traditional oil plant leakage monitoring scheme, buoy monitoring mode is at low cost, but occurs after oil plant leaks on buoy
Meeting adhesion oil plant causes the situation of subsequent monitoring inaccuracy, therefore maintenance cost is relatively high.Ultrasonic wave scheme is with respect to maintenance cost
It is lower, but scheme itself is expensive, also relatively high to installation requirement.
Utility model content
The purpose of the utility model is to overcome the above-mentioned problems in the prior art, provide a kind of fluorescence oil plant leakage
Sensor, the fluorescent effect principle based on oil plant, using UV detection mode, for needing the occasion of oil plant leakage monitoring.
To realize the above-mentioned technical purpose, the utility model is achieved through the following technical solutions:
A kind of fluorescence oil plant leak sensor, is made of optical component and measuring circuit, and optical component is set to detection sample
In one's respective area, the optical component is made of ultra-violet laser source and fluorescence detector, the ultra-violet laser source and fluorescence detector
Between be equipped with UV light path；Sensor determines whether there is leakage by detecting the luminous energy situation of fluorescence, and according to fluorescence luminous energy
The electric signal size that is converted into judges oil plant leak degree.Narrow-band-filter is arranged in the optical path inlet of the fluorescence detector
Piece, narrow band filter filter out the spectrum of unrelated frequency band, so that fluorescence detector only receives the ultraviolet light that c h bond can be absorbed
The frequency band of spectrum.The fluorescence detector is internally provided with photodiode.Photodiode receives fluorescence and is converted into electric signal.
The photodiode output of the fluorescence detector is electrically connected by signal conditioning circuit, A/D converter circuit and controller
It connects, the controller output connection RS232 interface circuit；The controller exports connecting analog voltage output circuit.
The controller output is electrically connected by timing circuit with ultra-violet laser source.Controllable ultra-violet laser source timing emits
Ultraviolet light.
Technical principle: it is based on Lambert-Beer's law, the polycyclic aromatic hydrocarbon after oil plant leakage in its ingredient is in special wavelength light
As ultraviolet laser irradiation under, inspire the fluorescence of fixed wave length, while ultraviolet laser has certain light intensity attenuation, and fluorescence
Light intensity attenuation after energy can pass through tested oil plant to laser is directly proportional, i.e. fluorescent effect.And oil plant is thicker, to incident laser
Decaying it is also bigger, fluorescent energy value is higher.Therefore fluorescence oil plant leak sensor is carried out using this characteristic fluorescence frequency range
Detection is monitored the fluorescent energy inspired, diffusion type sampling, is suitable for oil plant, oil pipeline, pump room, water
The detection in the oil plants spillage risk region such as domain.
Preferably, the laser that the ultra-violet laser source is 1064nm using fundamental frequency, structure include that KDP frequency tripling is brilliant
Body.Effective ultraviolet laser that 355nm can be obtained, suitable for the oil plant leak detection under various complex environments.
Preferably, the RS232 interface circuit output connects terminal.Can real-time reception, display let out about oil plant
Reveal the detection data of situation.
Preferably, the analog voltage output circuit output connection wireless communication module.It can real time remote transmission of monitoring number
According to.
Preferably, the controller is 16/32 processor of single chip computer based on ARM kernel.
Compared with prior art, the utility model has the beneficial effects that
(1) the fluorescence oil plant leak sensor of the utility model is the application for oil plant leakage, is based on existing skill
The infrared sensor structure of common optical component+circuit of measurement and control is improved in art, compared to other detection dresses of same domain
It sets, structure is simple, and convenient easily system, cost is relatively low.But fluorescent effect principle of this sensor based on oil plant, use are ultraviolet simultaneously
The working principle of line detection mode, principle performance are reliable.And only just there is inspection to the oil plant molecule containing polycyclic aromatic hydrocarbon key
Sensitivity is surveyed, so monitoring accuracy is high, strong environmental adaptability, the service life is long, it is contemplated that the adjustment period was not less than 1 year.
(2) structure, which uses, is based on monolithic processor controlled measuring circuit, and sensor is used in series, and is suitble to exist simultaneously
Line analysis various ingredients, application field are wide.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described.
Fig. 1 is the electrical block diagram of the fluorescence oil plant leak sensor of the utility model；
Fig. 2 is the radiation schematic diagram of the UV light path of sensor in embodiment one；
In attached drawing, parts list represented by the reference numerals are as follows:
1- ultra-violet laser source；2- UV light path；3- fluorescence detector；4- signal conditioning circuit；5-AD conversion circuit；6- control
Device processed；7-RS232 interface circuit；8- analog voltage output circuit；9- terminal；10- wireless communication module；11- timing
Circuit；31- narrow band filter；32- photodiode.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
Embodiment one:
It please refers to shown in Fig. 1, Fig. 2, the present embodiment is a kind of fluorescence oil plant leak sensor, by optical component and measurement electricity
Road composition, optical component are set in detection sample areas, and the optical component is by ultra-violet laser source 1 and 3 groups of fluorescence detector
At equipped with UV light path 2 between the ultra-violet laser source 1 and fluorescence detector 3；Whether sensor generates after passing through light path
The case where fluorescence, determines whether there is leakage, and is converted into electric signal according to fluorescence frequency value to judge oil plant leak degree.Such as Fig. 2
It is shown, optical component is set in closing shell in the present embodiment, UV light path 2 forms class after multistage undamped reflection
Round radiation mode.Narrow band filter 31 is arranged in the optical path inlet of the fluorescence detector 3, and narrow band filter 31 filters out nothing
The spectrum for closing frequency band, so that fluorescence detector 3 only receives the frequency band for the ultraviolet spectra that c h bond can be absorbed.The fluorescence inspection
It surveys device 3 and is internally provided with the photodiode 32 of dedicated version (only for the sensitive reaction of ultraviolet light, and for different types of
Oil plant leak detection region, functional structure have fine tuning), photodiode 32 receives fluorescence and is converted into electric signal.
The output of photodiode 32 of the fluorescence detector 3 passes through signal conditioning circuit 4, A/D converter circuit 5 and control
Device 6 is electrically connected, the output of the controller 6 connection RS232 interface circuit 7；The controller 6 exports connecting analog voltage output electricity
Road 8.Controller 6 is 16/32 processor of single chip computer based on ARM kernel.The electric signal that photodiode 32 exports is more micro-
It is weak, in the rank of 10 Donnas peace.Therefore the low noise operational amplifier that 4 front end of signal conditioning circuit includes puts input electrical signal
Electric signal stabilization is modulated into direct current or alternating current circuit by big modulation, rear end voltage regulator circuit.A/D converter circuit 5 converts analog circuit
At the compatible digital circuit of single-chip microcontroller.
The output of controller 6 is electrically connected by timing circuit 11 with ultra-violet laser source 1.Controllable ultra-violet laser source 1 is fixed
When emitting ultraviolet light.
Wherein, the laser that the ultra-violet laser source 1 is 1064nm using fundamental frequency, structure include KDP frequency tripling crystal.
Effective ultraviolet laser of 355nm can be obtained.
Wherein, the output of the RS232 interface circuit 7 connection terminal 9.Can real-time reception, display let out about oil plant
Reveal the monitoring data of situation.
Wherein, the output of the analog voltage output circuit 8 connection wireless communication module 10.It can real time remote transmission testing number
According to.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment, such as optical component
Structure according to different application detection environment, structure has adjustment.Obviously, according to the content of this specification, can make very much
Modifications and variations.These embodiments are chosen and specifically described to this specification, is the original in order to preferably explain the utility model
Reason and practical application, so that skilled artisan be enable to better understand and utilize the utility model.This is practical new
Type is limited only by the claims and their full scope and equivalents.
Claims (5)
1. a kind of fluorescence oil plant leak sensor, is made of optical component and measuring circuit, optical component is set to detection sample
In region, it is characterised in that:
The optical component is made of ultra-violet laser source (1) and fluorescence detector (3), the ultra-violet laser source (1) and fluorescence inspection
It surveys between device (3) and is equipped with UV light path (2)；Narrow band filter (31) are arranged in the optical path inlet of the fluorescence detector (3), institute
It states fluorescence detector (3) and is internally provided with photodiode (32)；
Photodiode (32) output is electrically connected by signal conditioning circuit (4), A/D converter circuit (5) with controller (6),
Controller (6) output connection RS232 interface circuit (7)；The controller (6) exports connecting analog voltage output circuit
(8)；
Controller (6) output is electrically connected by timing circuit (11) with ultra-violet laser source (1).
2. fluorescence oil plant leak sensor according to claim 1, it is characterised in that: the ultra-violet laser source (1) uses
Fundamental frequency is the laser of 1064nm, and structure includes KDP frequency tripling crystal.
3. fluorescence oil plant leak sensor according to claim 1, it is characterised in that: the RS232 interface circuit (7) is defeated
Connect terminal (9) out.
4. fluorescence oil plant leak sensor according to claim 1, it is characterised in that: the analog voltage output circuit
(8) output connection wireless communication module (10).
5. fluorescence oil plant leak sensor according to claim 1, it is characterised in that: the controller (6) is based on ARM
16/32 processor of single chip computer of kernel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821866110.6U CN209069521U (en) | 2018-11-13 | 2018-11-13 | A kind of fluorescence oil plant leak sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821866110.6U CN209069521U (en) | 2018-11-13 | 2018-11-13 | A kind of fluorescence oil plant leak sensor |
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| Publication Number | Publication Date |
|---|---|
| CN209069521U true CN209069521U (en) | 2019-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821866110.6U Expired - Fee Related CN209069521U (en) | 2018-11-13 | 2018-11-13 | A kind of fluorescence oil plant leak sensor |
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| CN (1) | CN209069521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115015194A (en) * | 2022-05-30 | 2022-09-06 | 大连海事大学 | Buoy type submarine cable insulating medium leakage monitoring system |
-
2018
- 2018-11-13 CN CN201821866110.6U patent/CN209069521U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115015194A (en) * | 2022-05-30 | 2022-09-06 | 大连海事大学 | Buoy type submarine cable insulating medium leakage monitoring system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190705 Termination date: 20191113 |