CN208476733U - A kind of flue dust monitor based on 650nm wavelength laser - Google Patents
A kind of flue dust monitor based on 650nm wavelength laser Download PDFInfo
- Publication number
- CN208476733U CN208476733U CN201821157701.6U CN201821157701U CN208476733U CN 208476733 U CN208476733 U CN 208476733U CN 201821157701 U CN201821157701 U CN 201821157701U CN 208476733 U CN208476733 U CN 208476733U
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- China
- Prior art keywords
- wavelength laser
- flue dust
- calibrator
- control unit
- laser
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Abstract
The utility model provides a kind of flue dust monitor based on 650nm wavelength laser, including probe tube and the monitor host being connect with probe tube, monitor host includes 650nm wavelength laser transmitter, laser power control unit, receives camera lens, detector, small Signal Pretreatment unit, display and input unit, output driving unit, main control unit, main control unit is electrically connected with laser power control unit, small Signal Pretreatment unit, display with input unit, output driving unit respectively, is received camera lens and is focused on received back-scattering light on the detector；650nm wavelength laser transmitter is set on V-type elastic component, there is threaded hole on elastic component both side plate, and two threaded holes are threadedly coupled by measurement adjusting nut.Without optical path pair, it is not afraid of beam wobbling caused by refractive index unevenness caused by the mechanical oscillation and flue-gas temperature unevenness of flue, precision is high；Structure is simply tightly played, and installation and later maintenance are simple, measures the size of the adjustable measurement zone of adjusting nut.
Description
Technical field
The utility model relates to monitoring smoke dust technical field more particularly to a kind of flue dust prisons based on 650nm wavelength laser
Survey instrument.
Background technique
Environmental protection is increasingly paid attention to all over the world, but industrial production also inevitably needs to discharge flue dust,
Country has formulated standard to the discharge of flue dust, so enterprise needs to carry out round-the-clock monitoring to the flue dust of discharge.At present to cigarette
The monitoring of dirt has many methods, such as transmission beam method, with the light quantity of the laser diode of single wavelength transmitting and by monitoring after chimney
Light quantity monitor dust concentration, compare the light quantity of laser diode transmitting and absorbed and the light quantity of reduction by flue dust, thus
To the permeability of light, dust concentration is calculated according to the transmission angle value of monitoring flue.This measurement method sensitivity is not high, to light
Collimation requirement in road is high, and installs complicated time-consuming.
Utility model content
Place in view of the deficiency of the prior art, the utility model provide a kind of based on 650nm wavelength laser
Flue dust monitor, to solve the problems, such as that precision is not high in the prior art and installation is complicated cumbersome.
The utility model provides a kind of flue dust monitor based on 650nm wavelength laser, including probe tube and with it is described
The monitor host that probe tube is tightly connected, the monitor host includes 650nm wavelength laser transmitter, laser power control
Unit receives camera lens, detector, small Signal Pretreatment unit, display and input unit, output driving unit, main control unit, institute
State main control unit respectively with the laser power control unit, small Signal Pretreatment unit, display and input unit, output driving
Unit electrical connection, the 650nm wavelength laser transmitter are electrically connected with the laser power control unit, the detector and institute
Small Signal Pretreatment unit electrical connection is stated, the reception camera lens is used to received back-scattering light focusing on the detector
On, the 650nm wavelength laser transmitter is set on the elastic component that section is V-type, opposite on the both side plate of the elastic component
It is provided with threaded hole, two threaded holes are threadedly coupled by measurement adjusting nut.
The monitor host offers calibration close to the sampling pipe end as a further improvement of the utility model,
Mouthful, the calibration mouth is equipped with calibrator, and the calibrator includes the cylindrical calibration device main body of cavity body structure, the calibrator
Body side offers optical window, in the cavity of the calibrator main body upper incision tiltedly be arranged there are two laser reflection diaphragm, two
Laser reflection diaphragm inclined surface is directed at the optical window, and the back side of two laser reflection diaphragms is provided with span tune
Screw is saved, calibrator main body one end is connected with left-hand thread end cap.
As a further improvement of the utility model, close to one end of the left-hand thread end cap on the outside of the calibrator main body
Side positioning pin there are two being symmetrical arranged.
Calibrator outer cover is provided with outside the calibrator as a further improvement of the utility model,.
It as a further improvement of the utility model, further include the fixing pipe being communicated in flue, on the outside of the fixing pipe
Flange, the fixing pipe and the monitor is provided on one end and the monitor to be cooperatively connected by flange and thumb screw,
It is connected to inside the probe tube and the fixing pipe.
It is provided between two flanges on the fixing pipe and the monitor as a further improvement of the utility model,
Asbestos pad, is provided with mounting flange between the flange on the asbestos pad and the monitor, dismountable on the mounting flange
It is provided with rain cover.
Circumferentially direction is provided with card slot, the rain-proof to the mounting flange as a further improvement of the utility model,
Cover is sticked in the card slot, and fixation hole, the mounting flange and rain cover are provided on the mounting flange and rain cover
The fixation hole is passed through by screw to fix.
Threading hole is additionally provided on the mounting flange as a further improvement of the utility model, in the threading hole
It is provided with waterproof connector.
It as a further improvement of the utility model, further include air filter, the air filter and the monitoring
Instrument host is threadedly coupled.
Air filter outer cover is provided with outside the air filter as a further improvement of the utility model,.
As a further improvement of the utility model,.
A kind of flue dust monitor based on 650nm wavelength laser provided by the utility model uses single-ended installation in structure,
Without optical path pair, it is not afraid of beam wobbling caused by refractive index unevenness caused by the mechanical oscillation and flue-gas temperature unevenness of flue,
Precision is high；Field erected complexity is reduced to the Instrument Design limits, only electric appliance connects for the installation of instrument and rain repellant system
It connects and needs a screwdriver, structure is simply tightly played, and installation and later maintenance are extremely simple.By measuring adjusting nut, can adjust
The size for saving measurement zone, screws measurement adjusting nut, and laser beam tilt angle becomes smaller, and measurement zone becomes larger, and is suitable for biggish flue diameter；
Measurement adjusting nut is unscrewed, then laser beam tilt angle becomes larger, and measurement zone becomes smaller, and the flue suitable for small diameter realizes a monitor
It is applicable in various working.
Detailed description of the invention
Fig. 1 is monitor structural schematic diagram provided by the utility model；
Fig. 2 is 650nm wavelength laser transmitter mounting structure schematic diagram provided by the utility model；
Fig. 3 is calibrator structural schematic diagram provided by the utility model；
Fig. 4 is monitor mounting structure schematic diagram provided by the utility model.
Specific embodiment
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
As shown in Figures 1 to 4, the utility model discloses a kind of flue dust monitors based on 650nm wavelength laser, including
Probe tube 2 and the monitor host 1 being tightly connected with the probe tube 2, the monitor host 1 include 650nm wavelength laser
Transmitter 13, laser power control unit 12 receive camera lens 18, detector 17, small Signal Pretreatment unit 16, display and input
Unit 14, output driving unit 15, main control unit 11, the main control unit 11 respectively with the laser power control unit 12,
Small Signal Pretreatment unit 16, display are electrically connected with input unit 14, output driving unit 15, the 650nm wavelength laser hair
Emitter 13 is electrically connected with the laser power control unit 12, and the detector 17 is electrically connected with the small Signal Pretreatment unit 16
It connects, the reception camera lens 18 is used to received back-scattering light focusing on the detector 17；The 650nm wavelength laser
Transmitter 13 is set on the elastic component 131 that section is V-type, is relatively set with threaded hole on the both side plate of the elastic component 131
132, two threaded holes 132 are threadedly coupled by measurement adjusting nut 133.
When work, 650nm wavelength laser transmitter 13 issues laser beam, injects emission source (in flue), laser beam and cigarette
The effect of grit generates scattering light, and back-scattering light is focused the light by receiving camera lens 18 to detector 17, and detector 17 is by light
Signal is changed into electric signal, which is transferred to main control unit 11, master control list after handling through small Signal Pretreatment unit 16
Member 11 is through being shown that input unit 14 is shown for analysis result after analytical calculation.Laser power control unit 12 can be right
The laser beam that 650nm wavelength laser transmitter 13 issues is modulated, and is controlled the power of light source；Small Signal Pretreatment list
Member 16 completes the work such as signal amplification, demodulation.By measuring adjusting nut 133, the size of adjustable measurement zone screws measurement
Adjusting nut 133, laser beam tilt angle become smaller, and measurement zone becomes larger, and are suitable for biggish flue diameter；Measurement adjusting nut 133 is unscrewed,
Then laser beam tilt angle becomes larger, and measurement zone becomes smaller, and suitable for the flue of small diameter, realizes that a monitor is applicable in various working.
The monitor host 1 offers calibration mouth close to 2 end of probe tube, and the calibration mouth is equipped with calibrator 9, described
Calibrator 9 includes the cylindrical calibration device main body 91 of cavity body structure, and 91 side of calibrator main body offers optical window 93, specifically
For upper and lower two optical windows 93, in the cavity of the calibrator main body 91 upper incision tiltedly be arranged there are two laser reflection diaphragm 94, two
A 94 inclined surface of laser reflection diaphragm is directed at the optical window 93, and the back side of two laser reflection diaphragms 94 is respectively provided with
There is span to adjust screw 95, described 91 one end of calibrator main body is connected with left-hand thread end cap 96.91 outside of calibrator main body
It is symmetrical arranged close to one end of the left-hand thread end cap 96 there are two side positioning pin 97, the calibrator 9 is provided with calibration outside
Device outer cover.
There are three types of the positioning states of calibrator 9 and monitor host 1, and calibrator 9 is inserted into monitor host 1, laser beam
It is span align mode when screwing calibrator outer cover when entering calibrator 9 by optical window 93；Relative to span align mode,
Calibrator 9 revolves turnback and is inserted into monitor host 1, and at this moment laser beam not can enter calibrator 9, and calibrator outer cover is screwed
When be zero point correction state；Calibrator 9 is inverted into calibrator host 1, calibrator main body 91 is put into calibrator outer cover, screws
Calibrator outer cover is measuring state or storage state.In span align mode, laser beam passes in and out calibrator 9 by optical window 93, changes
The angle of laser reflection diaphragm 94 can change the intensity of return laser light beam, and then change the calibration output valve of instrument, by across
Degree, which adjusts screw 95, can change the angle of laser reflection diaphragm 94.If at the scene if having adjusted measurement zone or gain jump
Line, span output valve can change, and can adjust screw 95 by adjusting span, span output valve is restored.
Further include the fixing pipe 3 being communicated in flue, is provided with method on 3 lateral ends of fixing pipe and the monitor
Orchid 31, the fixing pipe 3 are cooperatively connected with the monitor by flange 31 and thumb screw 32, the probe tube 2 with it is described solid
Determine to be connected to inside pipe 3.It is provided with asbestos pad 4 between two flanges 32 in the fixing pipe 3 and the monitor, is further functioned as
The effect of sealing.The outer diameter of probe tube 2 is equal with the internal diameter of fixing pipe 3.
Mounting flange 5 is provided between flange 32 on the asbestos pad 4 and the monitor, it can on the mounting flange 5
Disassembly is provided with rain cover 6.Circumferentially direction is provided with card slot to the mounting flange 5, and the rain cover 6 is sticked in the card
In slot.When installation, rain cover 6 is sticked in card slot, it is convenient and efficient when installing and dismantling.The mounting flange 5 and rain cover 6
On be provided with fixation hole 51, the mounting flange 5 passes through the fixation hole by screw with rain cover 6 and fixes.It can prevent
Strong wind from mounting flange 5 blows rain cover 6 off, and stability is more preferable.
It is additionally provided with threading hole on the mounting flange 5, waterproof connector 52 is provided in the threading hole.Waterproof connector 52
Signal cable is fixed, and plays the role of waterproof.
It further include air filter 7, the air filter 7 is threadedly coupled with the monitor host 1.The air mistake
Air filter outer cover 8 is provided with outside filter 7.
A kind of flue dust monitor based on 650nm wavelength laser provided by the utility model uses single-ended installation in structure,
Without optical path pair, it is not afraid of beam wobbling caused by refractive index unevenness caused by the mechanical oscillation and flue-gas temperature unevenness of flue,
Precision is high；Field erected complexity is reduced to the Instrument Design limits, only electric appliance connects for the installation of instrument and rain repellant system
It connects and needs a screwdriver, structure is simply tightly played, and installation and later maintenance are extremely simple.By measuring adjusting nut, can adjust
The size for saving measurement zone, screws measurement adjusting nut, and laser beam tilt angle becomes smaller, and measurement zone becomes larger, and is suitable for biggish flue diameter；
Measurement adjusting nut is unscrewed, then laser beam tilt angle becomes larger, and measurement zone becomes smaller, and the flue suitable for small diameter realizes a monitor
It is applicable in various working.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the protection scope of the utility model.
Claims (10)
1. a kind of flue dust monitor based on 650nm wavelength laser, it is characterised in that: close including probe tube and with the probe tube
The monitor host of connection is sealed, the monitor host includes 650nm wavelength laser transmitter, laser power control unit, connects
Receive camera lens, detector, small Signal Pretreatment unit, display and input unit, output driving unit, main control unit, the master control
Unit is electric with the laser power control unit, small Signal Pretreatment unit, display and input unit, output driving unit respectively
Connection, the 650nm wavelength laser transmitter are electrically connected with the laser power control unit, the detector and the small letter
The electrical connection of number pretreatment unit, the receptions camera lens is for focusing on the detector for received back-scattering light；It is described
650nm wavelength laser transmitter is set on the elastic component that section is V-type, is relatively set with spiral shell on the both side plate of the elastic component
Pit, two threaded holes are threadedly coupled by measurement adjusting nut.
2. the flue dust monitor according to claim 1 based on 650nm wavelength laser, it is characterised in that: the monitor
Host offers calibration mouth close to the sampling pipe end, and the calibration mouth is equipped with calibrator, and the calibrator includes cavity knot
The cylindrical calibration device main body of structure, the calibrator body side offer optical window, in the cavity of the calibrator main body up and down
Cutting tiltedly setting, there are two laser reflection diaphragms, and two laser reflection diaphragm inclined surface are directed at the optical window, described in two
The back side of laser reflection diaphragm is provided with span and adjusts screw, and calibrator main body one end is connected with left-hand thread end cap.
3. the flue dust monitor according to claim 2 based on 650nm wavelength laser, it is characterised in that: the calibrator
One end of the close left-hand thread end cap in main body outside is arranged symmetrically, and there are two side positioning pins.
4. the flue dust monitor according to claim 3 based on 650nm wavelength laser, it is characterised in that: the calibrator
It is provided with calibrator outer cover outside.
5. the flue dust monitor according to claim 1 based on 650nm wavelength laser, it is characterised in that: further include connection
Fixing pipe in flue is provided with flange, the fixing pipe and the prison on the fixing pipe lateral ends and the monitor
It surveys instrument to be cooperatively connected by flange and thumb screw, be connected to inside the probe tube and the fixing pipe.
6. the flue dust monitor according to claim 5 based on 650nm wavelength laser, it is characterised in that: the fixing pipe
And it is provided with asbestos pad between two flanges on the monitor, it is provided between the flange on the asbestos pad and the monitor
Mounting flange is removably provided with rain cover on the mounting flange.
7. the flue dust monitor according to claim 6 based on 650nm wavelength laser, it is characterised in that: the fixation
Blue circumferentially direction is provided with card slot, and the rain cover is sticked in the card slot, is all provided on the mounting flange and rain cover
It is equipped with fixation hole, the mounting flange passes through the fixation hole by screw with rain cover and fixes.
8. the flue dust monitor according to claim 6 based on 650nm wavelength laser, it is characterised in that: the fixation
It is additionally provided with threading hole on orchid, is provided with waterproof connector in the threading hole.
9. the flue dust monitor according to claim 1 based on 650nm wavelength laser, it is characterised in that: further include air
Filter, the air filter are threadedly coupled with the monitor host.
10. the flue dust monitor according to claim 9 based on 650nm wavelength laser, it is characterised in that: the air mistake
Air filter outer cover is provided with outside filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821157701.6U CN208476733U (en) | 2018-07-20 | 2018-07-20 | A kind of flue dust monitor based on 650nm wavelength laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821157701.6U CN208476733U (en) | 2018-07-20 | 2018-07-20 | A kind of flue dust monitor based on 650nm wavelength laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208476733U true CN208476733U (en) | 2019-02-05 |
Family
ID=65207748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821157701.6U Expired - Fee Related CN208476733U (en) | 2018-07-20 | 2018-07-20 | A kind of flue dust monitor based on 650nm wavelength laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208476733U (en) |
-
2018
- 2018-07-20 CN CN201821157701.6U patent/CN208476733U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20190205 Termination date: 20190720 |