CN110082268A - Cooling tower surveys mist system - Google Patents
Cooling tower surveys mist system Download PDFInfo
- Publication number
- CN110082268A CN110082268A CN201910340882.9A CN201910340882A CN110082268A CN 110082268 A CN110082268 A CN 110082268A CN 201910340882 A CN201910340882 A CN 201910340882A CN 110082268 A CN110082268 A CN 110082268A
- Authority
- CN
- China
- Prior art keywords
- laser
- mist
- cooling tower
- light
- surveys
- 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.)
- Granted
Links
- 239000003595 mist Substances 0.000 title claims abstract description 212
- 238000001816 cooling Methods 0.000 title claims abstract description 120
- 238000009434 installation Methods 0.000 claims abstract description 31
- 230000003287 optical effect Effects 0.000 claims description 60
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000005286 illumination Methods 0.000 claims description 3
- 230000001429 stepping effect Effects 0.000 description 55
- 239000003570 air Substances 0.000 description 43
- 238000006073 displacement reaction Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 14
- 238000013519 translation Methods 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000012937 correction Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001373 regressive effect Effects 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/075—Investigating concentration of particle suspensions by optical means
Landscapes
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention provides a kind of cooling towers to survey mist system, comprising: laser emitter；Wear mist laser pickoff, it wears mist laser emitter and laser pickoff is separately positioned on the two sides of cooling tower air duct outlet, the laser signal of laser emitter sending can be received by wearing mist laser pickoff, and laser signal is delivered to control system, judge whether the outlet of cooling tower air duct needs to disperse fog with the laser intensity received according to laser pickoff；Calibrating installation, calibrating installation is arranged on laser emitter and/or laser pickoff, when laser emitter is not to mist laser pickoff is just worn, laser signal is emitted on calibrating installation, according to the feedback adjustment laser emitter of calibrating installation, so as to laser emitter and wear mist laser pickoff to just, the laser signal of laser transmitter projects can be worn the reception of mist laser pickoff.Whether the present invention solves the problems, such as that cooling tower in the prior art can not be judged automatically according to the situation that hazes of air outlet of cooling tower and needs to disperse fog.
Description
Technical field
The present invention relates to cooling tower fog dispersal technical fields, survey mist system in particular to a kind of cooling tower.
Background technique
The temperature-fall period of conventional chilling tower recirculated water is that recirculated water pours on filler, surface and stream in numerous packing sheets
Dynamic air contact, to air evaporation, the heat of release cycle water reduces recirculated water own temperature；Enter from cooling tower lower part and fills out
The air of material carries the water vapour and latent heat of evaporation, is discharged into atmosphere under the swabbing action of tower top blower.
The higher area of latitude (northeast, North China and the Northwest including China), colder on the earth, cooling tower row
Damp-heat out is easy mist formation.The fog that cooling tower generates is broadly divided into light mist, middle mist and thick fog.Light mist: under calm condition,
Light mist, which leaves, to dissipate for about 10 meters with regard to dilution after air duct, to cooling tower periphery and plant area's surrounding enviroment without apparent unfavorable shadow
It rings；The light mist of air duct outlet can with the naked eye be had an X-rayed, it is seen that sky background or building background.Middle mist: under calm condition, middle mist from
Dissipation could be diluted for about 30 meters after cylinder by blowing in；Middle mist can not with the naked eye be had an X-rayed substantially；In sombre day, middle mist can condense into tiny water
Under drippage, have an impact to cooling tower peripheral equipment, road and engineer operation.Thick fog: under calm condition, after thick fog leaves air duct,
Mist body can keep 50 meters or more；Thick fog can not with the naked eye be had an X-rayed completely；In sombre day, the water droplet that thick fog condenses into is to cooling tower week
Side influence is very big, also has an impact to plant area periphery；The machine if winter does not blow in, thick fog can be diffused near cooling tower and be shrouded, and spread day
Gai Di becomes serious accident potential, can also cause environmental dispute.So high latitude area is desirable for the cooling of fog dispersal type
Tower.
In general, fog dispersal may need to increase air quantity, increase operating cost.From reducing influence of the fog to environment and mention
From the point of view of in terms of high cooling tower performance driving economy two, the mainly middle mist and thick fog that should be eliminated can tolerate one according to the actual situation
The light mist for determining degree exists.With the variation of ambient air temperature and humidity, the mist formation condition of cooling tower air duct outlet can also become therewith
Change, so needing the situation that hazes of detecting real-time air outlet of cooling tower, and takes timely measure fog dispersal.
Summary of the invention
The main purpose of the present invention is to provide a kind of cooling tower survey mist system, with solve cooling tower in the prior art without
Method judges automatically whether need the problem of dispersing fog according to the situation that hazes of air outlet of cooling tower.
To achieve the goals above, the present invention provides a kind of cooling towers to survey mist system, comprising: laser emitter；Wear mist
Laser pickoff, wears mist laser emitter and laser pickoff is separately positioned on the two sides of cooling tower air duct outlet, wears mist laser
Receiver can receive the laser signal of laser emitter sending, and laser signal is delivered to control system, according to laser
The laser intensity that receiver receives judges whether the outlet of cooling tower air duct needs to disperse fog；Calibrating installation, calibrating installation setting exist
On laser emitter and/or laser pickoff, when laser emitter is not to mist laser pickoff is just worn, laser signal is emitted to school
On standard apparatus, according to the feedback adjustment laser emitter of calibrating installation, so as to laser emitter and wear mist laser pickoff to just,
The laser signal of laser transmitter projects can be worn the reception of mist laser pickoff.
Further, calibrating installation includes: light-intaking tube, and laser signal passes through light-intaking tube injection along the axis of light-intaking tube and wears mist
Laser pickoff；Multiple reflecting components, reflecting component are connect with the periphery of light-intaking tube, and along the axial alignment of light-intaking tube, reflecting component
Can laser signal in reflected illumination to reflecting component, and by the outlet end of the arrival end of light-intaking tube to light-intaking tube, at least partly
It is helix that the junction of reflecting component and light-intaking tube, which is sequentially connected with the trajectory line to be formed,.
Further, all reflecting components include at least two reflectors being arranged in pairs, two reflectors being arranged in pairs
The two sides of light-intaking tube are oppositely arranged on, and close to the arrival end of light-intaking tube.
Further, two reflectors being arranged in pairs are arranged along the circumferentially-spaced 180 degree of light-intaking tube, and are located at light-intaking tube
Same level on.
Further, arrival end or outlet of two reflectors being arranged in pairs along the direction far from light-intaking tube to light-intaking tube
End inclination.
Further, all reflecting components include: multiple upper reflectors, and upper reflector is located at level where the axis of light-intaking tube
The top in face, each upper reflector are arranged successively along the axial direction of light-intaking tube, and by the outlet end of the arrival end of light-intaking tube to light-intaking tube,
It is helix that the junction of upper reflector and light-intaking tube, which is sequentially connected with the upper trajectory line to be formed,；Multiple lower reflectors, lower reflector
Positioned at the lower section of horizontal plane where the axis of light-intaking tube, each lower reflector is arranged successively along the axial direction of light-intaking tube, and by light-intaking tube
Arrival end to the outlet end of light-intaking tube, it is spiral that the junction of lower reflector and light-intaking tube, which is sequentially connected with the lower trajectory line to be formed,
Line, the rotation direction of upper trajectory line are identical as the rotation direction of lower trajectory line.
Further, upper reflector and lower reflector radially extending along light-intaking tube, the number of upper reflector and lower reflector
It measures identical and is arranged in pairs, the upper reflector and lower reflector being arranged in pairs are located at the opposite two sides of light-intaking tube.
Further, it further includes standard apparatus that cooling tower, which surveys mist system, and standard apparatus includes: spectroscope, and spectroscope is located at
On the path of laser signal；A part of laser signal is reflexed to reference laser receiver by reference laser receiver, spectroscope,
Another part of laser signal is irradiated to across spectroscope and wears on mist laser pickoff or calibrating installation, and control system compares benchmark
The laser intensity that the laser intensity and laser pickoff that laser pickoff receives receive, when wear the laser intensity of mist laser with
When the ratio of the laser intensity of reference laser is less than preset fog dispersal threshold value, control system control fog dissipation system disperses fog.
Further, cooling tower surveys mist system further include: multiple brackets, bracket are fixed on cooling tower air duct exit；It is more
A mobile platform, mobile platform are movably arranged on bracket；Multiple cabinets, cabinet are arranged on a mobile platform, laser emitter
It is separately positioned in a cabinet with mist laser pickoff is worn, and laser emitter and standard apparatus are arranged in the same cabinet
Interior, the side wall of cabinet has optical window, and the laser signal of laser transmitter projects is worn mist laser across optical window injection and connect
Receive device.
Further, it further includes anti-tampering part that cooling tower, which surveys mist system, and anti-tampering part is arranged at optical window, with filtering
Or it keeps the sun off.
Further, cooling tower surveys the gear that mist system further includes the ground line connecting with cabinet and/or is arranged on cabinet
Canopy sun eaves.
Further, it further includes Temperature Humidity Sensor that cooling tower, which surveys mist system, and Temperature Humidity Sensor is arranged in cabinet, with
Detect the temperature and humidity in cabinet.
Further, Temperature Humidity Sensor is multiple, and at least one Temperature Humidity Sensor is provided in each cabinet.
Further, it further includes the dedusting instrument tuyere being arranged on the outside of optical window that cooling tower, which surveys mist system,.
Further, it further includes the demisting instrument tuyere being arranged on the inside of optical window that cooling tower, which surveys mist system,.
Further, it further includes the heater being arranged in cabinet that cooling tower, which surveys mist system,.
Further, it further includes the radiator being arranged in cabinet that cooling tower, which surveys mist system,.
Further, the side wall of cabinet is additionally provided with shutter.
Further, laser signal is red laser.
It applies the technical scheme of the present invention, by the way that laser emitter is arranged, so that the laser signal of laser transmitter projects
It is worn mist laser pickoff behind the outlet of cooling tower air duct to receive, when laser signal passes through the mist in cooling tower air duct exit
When, laser signal can be blocked by mist, so that laser intensity weakens, different according to the concentration of mist, laser intensity subtracts
Small degree is also not quite similar, and mist is bigger, and laser intensity decrease is stronger, and mist is smaller, and laser intensity decrease is weaker, in this manner it is possible to
In the emissive porwer of laser emitter and the comparison between the receiving intensity that mist laser pickoff receives is worn according to laser signal
Value judges the size of the mist in cooling tower air duct exit, to judge whether to disperse fog according to the size of mist.It is above-mentioned to set
The concentration for the mist for enabling cooling tower to survey mist system real-time monitoring cooling tower air duct exit is set, and is linked with fog dissipation system
The drawbacks of concentration of mist is controlled in OK range, avoids artificial judgment inaccuracy not in time, ensure that the normal of cooling tower
The safety of work and ambient enviroment.Meanwhile the calibrating installation of setting enables to laser emitter and wears mist laser pickoff
Between relative position be corrected, guarantee the laser signal of laser transmitter projects can be worn mist laser pickoff reception
It arrives, avoiding laser displacement caused by the factors such as cooling tower vibrations leads to the problem of measurement inaccuracy, guarantees that cooling tower surveys mist
The normal work of system.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the main view that cooling tower of the invention surveys mist system；
Fig. 2 shows the top views that the cooling tower in Fig. 1 surveys mist system；
Fig. 3 shows the main view that the cooling tower in Fig. 1 surveys the calibrating installation of mist system；
Fig. 4 shows the top view of the calibrating installation in Fig. 3；And
Fig. 5 shows the left view of the calibrating installation in Fig. 3.
Wherein, the above drawings include the following reference numerals:
10, laser emitter；20, mist laser pickoff is worn；30, calibrating installation；31, light-intaking tube；32, reflector；33, on
Reflector；34, lower reflector；40, standard apparatus；41, spectroscope；42, reference laser receiver；50, bracket；60, mobile flat
Platform；70, cabinet；71, interior case；72, outer container；80, dedusting instrument tuyere；90, demisting instrument tuyere；100, heater；
110, radiator.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have and the application
The normally understood identical meanings of person of an ordinary skill in the technical field.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually needle
For direction shown in the drawings, or for component itself is on vertical, vertical or gravity direction；Equally
Ground for ease of understanding and describes, and " inside and outside " refers to the inside and outside of the profile relative to each component itself, but the above-mentioned noun of locality is not
For limiting the present invention.
In order to solve cooling tower in the prior art can not be judged automatically according to the situation that hazes of air outlet of cooling tower whether
The problem of dispersing fog is needed, the present invention provides a kind of cooling towers to survey mist system.
A kind of cooling tower as depicted in figs. 1 and 2 surveys mist system, including laser emitter 10, wear mist laser pickoff 20,
Calibrating installation 30, wears mist laser emitter 10 and laser pickoff is separately positioned on the two sides of cooling tower air duct outlet, wears mist and swashs
Optical receiver 20 can receive the laser signal of the sending of laser emitter 10, and laser signal is delivered to control system, with root
Judge whether the outlet of cooling tower air duct needs to disperse fog according to the laser intensity that laser pickoff receives；The setting of calibrating installation 30 is swashing
On optical transmitting set 10 and/or laser pickoff, when laser emitter 10 is not to mist laser pickoff 20 is just worn, laser signal transmitting
Onto calibrating installation 30, according to the feedback adjustment laser emitter 10 of calibrating installation 30, so that laser emitter 10 swashs with mist is worn
To just, the laser signal that laser emitter 10 emits can be worn mist laser pickoff 20 and be received optical receiver 20.
The present embodiment is by setting laser emitter 10, so that the laser signal that laser emitter 10 emits passes through cooling tower
Mist laser pickoff 20 is worn behind air duct outlet to receive, when laser signal passes through the mist in cooling tower air duct exit, laser letter
It number can be blocked by mist, different according to the concentration of mist so that laser intensity weakens, the reduction degree of laser intensity is not yet
Identical to the greatest extent, mist is bigger, and laser intensity decrease is stronger, and mist is smaller, and laser intensity decrease is weaker, in this manner it is possible to be believed according to laser
Number laser emitter 10 emissive porwer and wear between the receiving intensity that mist laser pickoff 20 receives fiducial value judgement
The size of the mist in cooling tower air duct exit, to judge whether to disperse fog according to the size of mist.Above-mentioned setting so that
Cooling tower survey mist system be capable of real-time monitoring cooling tower air duct exit mist concentration, and with fog dissipation system linkage control mist
Concentration in OK range, the drawbacks of avoiding artificial judgment inaccuracy not in time, ensure that the normal work of cooling tower with
And the safety of ambient enviroment.Meanwhile the calibrating installation 30 of setting enables to laser emitter 10 and wears mist laser pickoff 20
Between relative position be corrected, the laser signal for guaranteeing that laser emitter 10 emits can be worn mist laser pickoff 20 and be connect
It receives, avoiding laser displacement caused by the factors such as cooling tower vibrations leads to the problem of measurement inaccuracy, guarantees that cooling tower is surveyed
The normal work of mist system.
As shown in Figures 3 to 5, calibrating installation 30 includes light-intaking tube 31 and multiple reflecting components, and laser signal is along light-intaking tube 31
Axis pass through light-intaking tube 31 injection wear mist laser pickoff 20；Reflecting component is connect with the periphery of light-intaking tube 31, and along entering light
The axial alignment of cylinder 31, reflecting component can laser signal in reflected illumination to reflecting component, and extremely by the arrival end of light-intaking tube 31
It is spiral that the outlet end of light-intaking tube 31, at least partly reflecting component and the junction of light-intaking tube 31, which are sequentially connected with the trajectory line to be formed,
Line.In this way, in calibration of laser transmitter 10 and when wearing the position between mist laser pickoff 20, mobile laser emitter 10 or wear
Mist laser pickoff 20 to generate relative motion therebetween, is then judged as Laser emission according to the information that reflecting component is fed back
Device 10 or the positional relationship worn between mist laser pickoff 20 realize correction to adjust accordingly.
In the present embodiment, all reflecting components include at least two reflectors 32 being arranged in pairs, two be arranged in pairs
Reflector 32 is oppositely arranged on the two sides of light-intaking tube 31, and close to the arrival end of light-intaking tube 31.
Specifically, since laser signal is horizontal emission, thus light-intaking tube 31 is horizontal positioned lateral direction penetrating, reflective
One end of plate 32 is connect with the outer wall of light-intaking tube 31, and to far from light-intaking tube 31 axis direction extend, the present embodiment it is anti-
There are two the settings of tabula rasa 32, and two reflectors 32 are arranged along the circumferentially-spaced 180 degree of light-intaking tube 31, and are located at the same of light-intaking tube 31
On one horizontal plane, when the front-left or front-right of mist laser pickoff 20 are worn in the laser signal deviation that laser emitter 10 emits
When, laser signal can be radiated on reflector 32, in order to determine that laser signal is penetrated on earth in front-left or front-right, two
Reflector 32 is tilted along the direction far from light-intaking tube 31 to the arrival end of light-intaking tube 31 or outlet end, the reflector 32 of the present embodiment
It is to be tilted along the direction far from light-intaking tube 31 to the outlet end of light-intaking tube 31, as the laser signal that laser emitter 10 emits is inclined
Bigger with a distance from mist laser pickoff 20 from wearing, the transmitting range of laser signal is longer, can determine whether the inclined of laser signal with this
From direction, by laser signal, to transmitting range, gradually short direction adjusts and receives laser signal until wearing mist laser pickoff 20
?.
In the present embodiment, all reflecting components include multiple upper reflectors 33 and multiple lower reflectors 34, upper reflector 33
Positioned at the top of horizontal plane where the axis of light-intaking tube 31, each upper reflector 33 is arranged successively along the axial direction of light-intaking tube 31, and by
To the outlet end of light-intaking tube 31, the junction of upper reflector 33 and light-intaking tube 31 is sequentially connected with to be formed the arrival end of light-intaking tube 31
Upper trajectory line is helix；The lower section of horizontal plane, each lower 34 edge of reflector where lower reflector 34 is located at the axis of light-intaking tube 31
The axial direction of light-intaking tube 31 is arranged successively, and by the arrival end of light-intaking tube 31 to the outlet end of light-intaking tube 31, lower reflector 34 with into
It is helix, the rotation direction phase of the rotation direction of upper trajectory line and lower trajectory line that the junction of light cylinder 31, which is sequentially connected with the lower trajectory line to be formed,
Together.
Upper reflector 33 and lower the radially extending along light-intaking tube 31 of reflector 34, the number of upper reflector 33 and lower reflector 34
It measures identical and is arranged in pairs, the upper reflector 33 and lower reflector 34 being arranged in pairs are located at the opposite two sides of light-intaking tube 31.
The detailed construction and correction principle of calibrating installation 30 are explained as follows:
The optical window for wearing mist laser pickoff 20 is the target window of laser signal, and area is smaller, and blower rotation is drawn
The cooling tower tower body vibration risen may make laser signal deviate target window, can not measure the fog concentration of air duct outlet.If
Laser signal axis direction is x to the facade vertical with x is y-z plane, and wherein z is vertical shaft direction, and y is horizontal axis, is such as schemed
1 and direction shown in Fig. 2, then laser signal will consider six-freedom degree, i.e. x-y-z tri- relative to the displacement of target window
The displacement of the lines in a direction and angular displacement around tri- axis of x-y-z.
If the displacement of the lines of x-axis occurs relative to target window for laser signal, laser signal remains to inject target window, only
It is that spot distance exports to the distance of laser signal end luminous point than original close or remote from laser emitter 10.
If the displacement of the lines along y-axis occurs relative to target window for laser signal, laser signal may be biased to target window
The left side or the right, fail inject target window.
If the displacement of the lines along z-axis occurs relative to target window for laser signal, laser signal may be biased to target window
Above or below, fail to inject target window.
If the angular displacement around x-axis occurs relative to target window for laser signal, laser signal remains to inject target window.
If the angular displacement around y-axis occurs relative to target window for laser signal, laser signal may be biased to target window
Above or below, fail to inject target window.
If the angular displacement around z-axis occurs relative to target window for laser signal, laser signal may be biased to target window
The left side or the right, fail inject target window.
If relative to target window compound displacement of the lines and angular displacement, laser signal, which occur, for laser signal may be biased to target
Upper left, lower-left, upper right or the bottom right of window, and fail to inject target window.
The present embodiment wears the optics of mist laser pickoff 20 and its appurtenances dress all in cabinet 70, on this cabinet 70
Window i.e. target cabinet window, laser signal could inject the target for wearing mist laser pickoff 20 by target cabinet window
Window.
The laser emitter 10 of the present embodiment selects laser range finder, can both emit red continuous laser signal and enter laser
Receiver can also provide the variation of spot distance when laser signal deviates target cabinet window, calculate that laser signal deviates mesh
The angle for marking cabinet window, provides foundation to automatically correct laser signal.
It the reference laser receiver 42 of the present embodiment and wears mist laser pickoff 20 and all selects laser power meter, laser signal
Laser power timing is injected, the laser power measured can reflect the light intensity of continuous laser signal.
Due to laser emitter 10 and wears mist laser pickoff 20 and be all installed on tower body, so laser signal end
Displacement of the lines and angular displacement amplitude of the red luminous point near target window are all not too large, and x moves amplitude within 10mm to axis, y-
Z is to offset amplitude within 20mm, and the rotation amplitude around x-y-z is all within 3 °.
To wearing for mist laser pickoff 20, defining in face of the direction of laser signal is " preceding ", along the side of laser signal
To for " rear ", i.e., it is " preceding " close to the direction of laser emitter 10, is " rear " close to the direction for wearing mist laser emitter 10.This reality
It applies example and one light-intaking tube 31, import center, export center and the mesh of light-intaking tube 31 is set in the front for wearing mist laser pickoff 20
It marks cabinet window center " sight alignment ", is targeted by the optical window center for wearing mist laser pickoff 20.As long as laser signal energy
Target cabinet window is enough entered by light-intaking tube 31, then laser signal can inject the optical window for wearing mist laser pickoff 20.
It is seen along laser signal, is that one piece of setting is inclined to right back at the horizontal radius direction of the right at 0 ° of angle of light-intaking tube 31
The reflector 32 of one piece of back sweep to the left is arranged in oblique reflector 32 at symmetrical 180 ° of angles, this two pieces of reflectors 32 are used
Stainless steel production.Laser signal is mapped on this two pieces of reflectors 32, and luminous point is remoter from light-intaking tube 31, then spot distance is bigger, and
It is consecutive variations, therefore this two pieces of reflectors 32 are horizontal-shift continuous light-reflecting plate.
Counterclockwise along laser signal, at 17 angles of 31 poincare half plane of light-intaking tube, i.e., 10 °, 20 °,
At 30 ° ... 170 ° of angles, upper reflector 33 of each one piece of installation perpendicular to light-intaking tube 31, totally 17 pieces, radially；10 ° upper reflective
20mm is stepped back in device root reflector root upper than 0 °, and then, per left-handed 10 °, upper reflector 33 is drawn back 5mm, and spot distance increases
Add 5mm, then the root line of centres of 17 pieces of upper reflectors 33 forms a left-handed helix；Also it can be seen that, luminous point is in entering light
When 31 poincare half planes of cylinder move from right to left, spot distance is that step is increased.
Counterclockwise along laser signal, at 17 angles of 31 lower half-plane of light-intaking tube, i.e., 190 °, 200 °,
At 210 ° ... 350 ° of angles, lower reflector 34 of each one piece of installation perpendicular to light-intaking tube 31, totally 17 pieces, radially；It is anti-under 190 °
20mm is stepped back in than 180 ° of light device root reflector root, and then, per left-handed 10 °, lower reflector 34 is drawn back 5mm, spot distance
Increase 5mm, then the root line of centres of 17 pieces of lower reflectors 34 forms a left-handed helix；Also it can be seen that, luminous point into
When 31 lower half-plane of light cylinder moves from right to left, spot distance is that step reduces.
It can deduce, totally 34 reflecting components, the root line of this 34 reflecting components form two above and below light-intaking tube 31
Helix, shape is similar to " two-wire screw rod ", then this 34 pieces of reflecting components above and below light-intaking tube 31 are angular variation spiral
Index step reflector.
Each block of plate on horizontal-shift continuous light-reflecting plate and angular variation spiral indexing step reflector is fan-shaped, fan-shaped
Inside radius is equal to the outer radius of light-intaking tube 31, and the outer radius of each block of plate is equal to inside radius and adds 50mm, and the sector of adjacent each block of plate is wide
Degree overlapping 2mm, avoids occurring gap in facade projection between two boards, that is, laser signal is avoided to be mapped between two boards
So that the case where can not find luminous point angular variation in gap.
The probability that mist laser pickoff 20 is worn along cooling tower tower top planar offset is obviously larger, that is to say, that deflection of optical point
A possibility that on to 0 ° of reflector and 180 ° of reflectors, is larger.
0 ° of reflector is set as the plate of back sweep to the right, and deflection of optical point is bigger, then spot distance is remoter, i.e. luminous point edge
When 0 ° of reflector moves to right, spot distance is increased continuously.
Similarly, to the left on 180 ° of reflectors of back sweep, deflection of optical point is bigger, then spot distance is remoter, i.e. luminous point edge
When 180 ° of reflectors move to left, spot distance is increased continuously.
In the present embodiment, it further includes standard apparatus 40 that cooling tower, which surveys mist system, and standard apparatus 40 includes 41 He of spectroscope
Reference laser receiver 42, spectroscope 41 are located on the path of laser signal；Spectroscope 41 reflects a part of laser signal
To reference laser receiver 42, another part of laser signal is irradiated to across spectroscope 41 wears mist laser pickoff 20 or calibration
On device 30, control system compares the laser that the laser intensity that reference laser receiver 42 receives and laser pickoff receive
Intensity, when the ratio for wearing the laser intensity of laser intensity and reference laser of mist laser is less than preset fog dispersal threshold value, control
System control fog dissipation system disperses fog.
Laser emitter 10 may be mounted at cooling tower air duct outlet top north, and the continuous laser beam of transmitting passes through transflection
It is divided into orthogonal two beams laser in the horizontal plane than the spectroscope 41 for 80:20, wherein transmitted light beam directive cooling tower wind
Cylinder outlet top it is in the south wear mist laser pickoff 20, worn mist laser pickoff 20 and receive to become and wear mist laser, the reflected beams
Reference laser receiver 42 along 41 side of vertical optical path directive spectroscope, is received by reference laser receiver 42 and swashs as benchmark
Light.Reference laser receiver 42 and laser emitter 10 are mounted in a cabinet 70, and reference laser receiver 42 is sent out from laser
Emitter 10 and spectroscope 41 are as close as possible, and optical path is as short as possible, so that reference beam avoids interfering as far as possible, in the light of two light beams
When by force relatively, play the role of benchmark.
In view of laser emitter 10 may be gradually old due to environment temperature deviation device normal working temperature and device
The reasons such as change, so that the laser intensity of laser signal is decayed, it is possible that " air duct fog discharge is denseer, the fog dispersal, misjudged
For light mist, do not have to fog dispersal " the case where, so spectroscope 41 and reference laser receiver 42 are used in the optical path that the present invention constructs,
No matter how the laser intensity that laser emitter 10 issues changes, after spectroscope 41, always there is laser intensity ratio to fix
Light beam benchmark of the reflected beams as exploring laser light attenuation rate and detection fog concentration.
Fog dispersal season, by a series of experiments, so that it may by wear mist laser laser intensity and reference laser laser it is strong
The ratio of both degree associates one by one with fog concentration, and is fitted and has functional relation, and control system can be calculated according to ratio
The fog concentration of cooling tower air duct outlet.Control system can swash the laser intensity of the reference laser received and mark reference of reference
The laser intensity of light is made comparisons, and calculates the attenuation rate for the laser intensity that laser emitter 10 issues, and then calculate more Laser emission
The fog dispersal threshold value of the laser intensity ratio of the laser intensity for wearing mist laser and reference laser after the laser intensity decaying of device 10, from
And it accurately disperses fog.
Specifically, if the etalon optical power that laser emitter 10 issues is S=100 microwatt, the transflection ratio of spectroscope 41 is r=
80:20, i.e. transmitted light intensity are F=80 microwatt, and reflective light intensity is E=20 microwatt.Assuming that fog makes to wear mist beam attenuation D=30
Microwatt, then wearing the light intensity that mist laser pickoff 20 receives is G=F-D=80-30=50 microwatt, then control system receives
Light intensity signal ratio be a1=G/E=50/20=2.5.Variable relation therein are as follows:
S=E+F, r=F/E=(S-E)/E, G=F-D=S-E-D,
a1=G/E=(F-D)/E=(S-E-D)/E.
If user thinks, making the fog concentration for wearing mist laser beam dough softening D=30 microwatt is the initial concentration of fog dispersal, then right
The light intensity ratio a answered1=G/E=2.5 exactly starts the threshold value of fog-dissipation device.
If after operation 5 years, the gradually aging of the component of laser emitter 10, the light intensity attenuation that laser emitter 10 issues
?.Assuming that the light intensity attenuation rate of transmitting is c=0.9, then the light intensity attenuation that laser emitter 10 issues is cS=90 microwatt, light splitting
41 transflection of mirror is than being still r=80:20, then transmitted light intensity is cF=72 microwatt, reflective light intensity is cE=18 microwatt, and fog dispersal rises
Beginning fog concentration, which still corresponds to, wears mist laser attenuation degree D=30 microwatt, at this point, wearing the light intensity that mist laser pickoff 20 receives and being
G2=cF-D=72-30=42 microwatt, then the light intensity ratio that control system receives is when the new threshold value of starting fog-dissipation device
a2=G2/ cE=42/18=2.33, variable relation therein are as follows:
CS=cE+cF, r=cF/cE=F/E,
G2=cF-D,
a2=G2/ cE=[cF-D]/cE=[cS-cE-D-cD+cD]/cE
=c (S-E-D)/cE+ (cD-D)/cE
=a1+(c-1)D/cE
=a1(1-c) D/cE,
Due to c=0.9 < 1, thus a2=2.33 < a1=2.5.
Mist light intensity ratio a is worn before even decaying1=2.5 be the threshold value of fog dispersal, then when same mistiness is spent, Laser emission
Fog dispersal threshold value after device 10 is decayed should be reduced to a2=2.33.
Standard laser strength retrogression of the laser intensity that laser emitter 10 issues when coming into operation than initial stage how much be can be with
It measures.The benchmark light intensity cE measured is sent to control system by reference laser receiver 42, is made with the benchmark light intensity E not decayed
Compare, even if obtaining the light intensity attenuation rate c=cE/E of laser emitter 10, and then by known a1, c, D, E can calculate laser hair
Fog dispersal threshold value a after the decaying of emitter 102=a1-(1-c)D/cE。
If not having fog above air duct, it is strong to wear the laser that mist laser pickoff 20 and reference laser receiver 42 receive
Degree ratio is 80:20, it is contemplated that the optical window and to pass through two 70 windows of cabinet that laser signal will pass through on cabinet 70
Between atmosphere, the laser intensity for wearing mist laser also has certain decaying, reaches the laser intensity ratio of two laser pickoffs
Value may is that 77:20, and how is specific ratio, and relationship is all little, as long as test calibration is got well before cooling tower operation.It is cold
But after tower behaves, damp-heat air or fog above air duct have apparent attenuation to laser, so wearing mist laser
The laser intensity that receiver 20 is experienced can be significantly less than 4 times of the laser intensity that reference laser receiver 42 is experienced, and two
Laser intensity is converted into electric signal and is sent to computer being compared, when the laser of the laser intensity and reference laser of wearing mist laser is strong
The ratio of degree be less than preset fog dispersal threshold value when, illustrate air duct outlet fog it is obvious, at this time control system issue disperse fog order into
Row fog dispersal, the ratio until wearing the laser intensity of mist laser and the laser intensity of reference laser, which increases to, is greater than fog dispersal threshold value.
In the present embodiment, it further includes multiple brackets 50, multiple mobile platforms 60 and multiple cabinets that cooling tower, which surveys mist system,
70, bracket 50 is fixed on cooling tower air duct exit；Mobile platform 60 is movably arranged on bracket 50；Cabinet 70 is arranged in movement
It on platform 60, laser emitter 10 and wears mist laser pickoff 20 and is separately positioned in a cabinet 70, and laser emitter 10
It is arranged in the same cabinet 70 with standard apparatus 40, the side wall of cabinet 70 has optical window, what laser emitter 10 emitted
Laser signal passes through optical window injection and wears mist laser pickoff 20.
Wherein, cabinet 70 is two sets, is respectively used to accommodate laser emitter 10 and wears mist laser pickoff 20, correspondingly,
Bracket 50, mobile platform 60 also have two sets respectively.
Laser emitter 10, spectroscope 41, it is flat that reference laser receiver 42 is all mounted on optics by corresponding optical bench
On platform, in the same cabinet 70, wherein cabinet 70 includes 72 two parts of interior case 71 and outer container, and the effect of interior case 71 is mainly
Protect optical device from outside contamination, the bottom plate of interior case 71 is optical platform, and optical platform is installed in turn below around y-axis
Stepping angle moving stage and around z-axis stepping angle moving stage, forms a set of mobile platform around y-axis stepping angle moving stage and around z-axis stepping angle moving stage
60, it is secured on 72 bottom plate of outer container around z-axis stepping angle moving stage, interior case 71 and two steppings are mainly protected in the effect of outer container 72
Angle moving stage is damaged from external mechanical.The outer container 72 of laser emitter 10 is then fixed on bracket 50.When adjusting two angle moving stage,
Optical instrument and interior case 71 on optical platform can all move, but outer container 72 is motionless, and case 71 and outer container 72 are on cabinet 70 within institute
Optical window near connection be flexible coupling using rubber.
It wears mist laser pickoff 20 to be mounted on optical platform by optical bench, the bottom plate of interior case 71 is to wear mist laser to connect
The optical platform of device 20 is received, y is mounted below optical platform to stepping translation stage and z to stepping translation stage, and y is translated to stepping
Platform and z are to the another set of mobile platform 60 of stepping translation stage composition, and y is fixed on the bottom plate of outer container 72 to stepping translation stage.It adjusts
When saving two stepping translation stages, optical instrument and interior case 71 on optical platform can all be moved, but outer container 72 is motionless, case 71 within institute
Also it is flexible coupling using rubber with connection of the outer container 72 near the optical window on cabinet 70.
The specific calibration method of calibrating installation 30 is explained as follows:
If the deviation of spot distance and target cabinet window preset distance that laser emitter 10 is shown is larger, and wears mist and swash
The received laser intensity of optical receiver 20 is zero or significant less than normal, then illustrates that laser signal deviates from and wear mist laser pickoff 20
Optical window, needs two stepping angle moving stage and the movement of two stepping translation stages, calibration of laser signal, make laser signal enter into
Light cylinder 31, into target cabinet window.
Mode one
The lower section of laser emitter 10 around the slow stepping rotation to the left of z-axis stepping angle moving stage, luminous point is slowly adjusted to the left,
If in adjustment process, spot distance consecutive variations, and be gradually increased, illustrate luminous point on 180 ° of reflectors.At this point, being walked around z-axis
Into the rotation of slow stepping to the right of angle moving stage, luminous point is adjusted to the right, until control system receives and wears mist laser intensity signal and be
Only, target cabinet window is then measured and record to the new distance of laser emitter 10, is prepared for correction next time.
If rotating to the right around z-axis stepping angle moving stage to the limit, control system does not receive yet wears mist laser intensity signal, then
The y-axis stepping translation stage for wearing 20 lower section of mist laser pickoff slowly moves to the left, and target cabinet window is driven gradually to approach to the left
Luminous point, until control system receives and wears mist laser intensity signal；At this point, also needing to rotate to the left around z-axis stepping angle moving stage, move back
Extreme position out, in case the operation of subsequent correction laser signal；At the same time, y-axis stepping translation stage drives target cabinet window
Continue slowly movement to the left, keeps control system to receive and wears mist laser intensity signal；Then measure and record target cabinet window
Mouth arrives the new distance of laser emitter 10.
Mode two
Around the slow stepping rotation to the left of z-axis stepping angle moving stage, luminous point is slowly adjusted to the left, if in adjustment process, luminous point
It apart from consecutive variations, and is gradually reduced, illustrates luminous point on 0 ° of reflector.At this point, slowly continue to the left to adjust luminous point, until
Control system receives until wearing mist laser intensity signal, then measures and record target cabinet window to laser emitter 10
New distance is prepared for correction next time.
If rotating to the left around z-axis stepping angle moving stage to the limit, control system does not receive yet wears mist laser intensity signal, then
The y-axis stepping translation stage for wearing 20 lower section of mist laser pickoff slowly moves to the right, and target cabinet window is driven to move closer to the right
Luminous point, until control system receives and wears mist laser intensity signal；At this point, also needing to rotate to the right around z-axis stepping angle moving stage, move back
Extreme position out, in case the operation of subsequent correction laser signal；Simultaneously at the same time, y-axis stepping translation stage drives target cabinet
Window continues to the right slowly movement, keeps control system to receive and wears mist laser intensity signal；Then measure and record target machine
New distance of the case window to laser emitter 10.
Mode three
Around the slow stepping rotation to the left of z-axis stepping angle moving stage, luminous point is slowly adjusted to the left, if in adjustment process, luminous point
Increase apart from step, illustrates luminous point on the angular variation spiral indexing step reflector above target cabinet window.At this point, around y
The rotation of slow stepping downwards of axis stepping angle moving stage, luminous point is adjusted downwards, spot distance can small size Spline smoothing, work as spot distance
When significantly step reduces, illustrate on luminous point to 0 ° or 180 ° of reflectors, then press the adjusting method of mode two, enters luminous point
Target cabinet window.
If rotating down to the limit around y-axis stepping angle moving stage, spot distance does not reduce significantly also, illustrates that luminous point is also less than
On horizontal-shift continuous light-reflecting plate, y-axis stepping angle moving stage is remained stationary at this time, wears the z-axis stepping of 20 lower section of mist laser pickoff
Translation stage slowly moves upwards, drives target cabinet window gradually upward, until significantly step reduces spot distance, luminous point is arrived
On 0 ° or 180 ° of reflectors, then the adjusting method of mode two is pressed, so that the luminous point is entered target cabinet window.Luminous point has arrived horizontal inclined
It after moving on continuous light-reflecting plate, also needs to rotate upwards around y-axis stepping angle moving stage, exits extreme position, in case subsequent correction laser
The operation of signal；At the same time, z-axis stepping translation stage drives target cabinet window to continue up slow movement, keeps control system
System, which receives, wears mist laser intensity signal；Then measure and record target cabinet window to laser emitter 10 new distance.
Mode four
Around the slow stepping rotation to the left of z-axis stepping angle moving stage, luminous point is slowly adjusted to the left, if in adjustment process, luminous point
Reduce apart from step, illustrates luminous point on the angular variation spiral indexing step reflector of target cabinet beneath window.At this point, around y
The slow stepping rotation upwards of axis stepping angle moving stage, luminous point is adjusted up, spot distance can small size Spline smoothing, work as spot distance
When significantly step reduces, illustrate on luminous point to 0 ° or 180 ° of reflectors, then press the adjusting method of mode two, enters luminous point
Target cabinet window.
If being rotated upwardly to the limit around y-axis stepping angle moving stage, spot distance does not reduce significantly also, illustrates that luminous point is also less than
On horizontal-shift continuous light-reflecting plate, y-axis stepping angle moving stage is remained stationary at this time, wears the z-axis stepping of 20 lower section of mist laser pickoff
Translation stage slowly moves downward, and drives target cabinet window gradually downward, until significantly step reduces spot distance, luminous point is arrived
On 0 ° or 180 ° of reflectors, then the adjusting method of mode two is pressed, so that the luminous point is entered target cabinet window.Luminous point has arrived horizontal inclined
It after moving on continuous light-reflecting plate, also needs to be rotated down around y-axis stepping angle moving stage, exits extreme position, in case subsequent correction laser
The operation of signal；At the same time, z-axis stepping translation stage drives target cabinet window to continue to slowly move downward, and keeps control system
System, which receives, wears mist laser intensity signal；Then measure and record target cabinet window to laser emitter 10 new distance.
Mode five
If pressing above-mentioned one, two, three, four adjusting method, control system, which does not all receive, wears mist laser intensity signal, i.e., red
Coloured light does not click through target cabinet window, then illustrates that tower body vibration is excessive, causes laser signal deviation target cabinet window excessive,
It needs the upper tower of operator to proofread the relative position of laser signal and target cabinet window again, re-secures installation laser emitter
10 and each connector of mist laser pickoff 20 is worn, and takes measures to reduce tower body vibration.
Such as: set blower fan of cooling tower diameter 8m, air duct base opening outer diameter 9.7m, air duct height 3.8m.If cooling tower surveys mist system
It is 11000mm from the gauged distance for exporting to target cabinet window of laser emitter 10 after system is installed.
Horizontal-shift continuous light-reflecting plate has two pieces, i.e. 0 ° of reflector and 180 ° of reflectors, this two boards be it is sweptback,
With 31 out of plumb of light-intaking tube；Distance=11000-120=that laser emitter 10 exports to 0 ° of reflector root can be calculated
10880mm, to the distance=10880+10=10890mm on 0 ° of reflector vertex；180 ° of reflectors and 0 ° of reflector are symmetrical, laser
The distance that transmitter 10 exports to 180 ° of reflector roots is also 10880mm, and the distance to 32 vertex of reflector is also
10890mm。
The fan-shaped reflecting component for constituting angular variation spiral indexing step reflector shares 34 pieces, all perpendicular to light-intaking tube 31, therefore
The distance for exporting to the vertex of any angular variation spiral indexing step reflector from laser emitter 10 is substantially equal to the plate root
The distance in portion；Then the passive distance that laser emitter 10 exports to each angular variation spiral indexing step reflector, column can be calculated
In following table.
If tower body vibrates, but laser emitter 10 and the relative position no variation for wearing mist laser pickoff 20, then quiet in table
State distance does not all change, and just may know that the angle of deflection of optical point by laser range finder, so that it may calibrate laser beam quickly.
In general, tower body vibrates, laser emitter 10 and the relative position for wearing mist laser pickoff 20 change and are
It is common, but the amplitude of variation of relative position is all not too big, thus above-mentioned passive distance table can using typing control system as
When with reference to, actual alignment laser beam, still it is subject to and dynamically judges light spot position and luminous point dynamic regression target cabinet window.
With above-mentioned data instance, two examples calibrated automatically are enumerated:
Automatic correction laser beam example 1: laser beam end red light point appears on 180 ° of reflectors；
The first step, control system issue the order for judging light spot position, and 10 lower section of laser emitter is moved around z-axis stepping angle
Platform slow stepping rotation to the left, luminous point is slowly adjusted to the left, in adjustment process, spot distance is in 10880mm~10890mm model
It in enclosing, and is gradually increased, computer judges luminous point on 180 ° of reflectors；
Second step, control system issues the order of the horizontal right lateral regressive object cabinet window of luminous point, around z-axis stepping angle moving stage
Slow stepping rotation to the right, luminous point is adjusted to the right, until laser beam enters target cabinet window, computer, which will receive, at this time is worn
Mist laser intensity signal, and being compared with the light intensity signal of reference laser receiver 42, judges fog concentration, provide fog dispersal or
The order that wouldn't be dispersed fog.
Automatic correction laser beam example 2: laser beam end red light point appears on 320 ° of reflectors；
The first step, control system issue the order for judging light spot position, and 10 lower section of laser emitter is moved around z-axis stepping angle
Platform slow stepping rotation to the left, luminous point is slowly adjusted to the left, in adjustment process, spot distance is reflective from 10965mm i.e. 320 °
Plate starts, and jumps to 10960mm and 10955mm, and step reduces, and illustrates angular variation spiral indexing rank of the luminous point below optical window
It jumps on reflector；
Second step, control system issue luminous point and return the order of horizontally disposed reflector 32, around y-axis stepping angle moving stage to
Upper slow stepping rotation, luminous point is adjusted up, and spot distance meeting step increases, and 10955mm, 10960mm, 10965mm occurs,
10970mm, 10975mm, 10980mm, then substantially step reduces 90~100mm, this illustrates that luminous point is moved to 0 ° of reflector
Upper i.e. spot distance enters 10880~10890mm range；
Third step, control system issues the order of the horizontal left lateral regressive object cabinet window of luminous point, around z-axis stepping angle moving stage
Slow stepping rotation to the left, luminous point is slowly adjusted to the left, until laser beam enters target cabinet window；Mist laser is worn at this time to connect
Light intensity signal can be issued to computer by receiving device 20, and is compared with the light intensity signal of reference laser receiver 42, judge fog
Concentration, the order that provides fog dispersal or wouldn't disperse fog.
It disperses fog in season, if not opening fog dissipation system temporarily, cooling tower surveys mist system can be always on, surveys mist per minute
Once, by the laser intensity of reference laser and wear the laser intensity of mist laser and pass to control system, computer calculate and
After judgement, then decide whether to disperse fog.
Laser signal in the present embodiment works as cooling tower reason is that 1, red laser haze-penetrating capability is stronger for red laser
User is according to itself and periphery situation, in the presence of allowing a degree of light mist, if with other color laser, it may be by light fogbound
Gear mistakenly issues fog dispersal order；If other laser 2, is selected to pass through light mist, it is necessary to increase laser energy consumption, increase laser
Fever, shortens the working life, and selects red laser just and can save energy and long-term operation；If 3, equally stronger with haze-penetrating capability
Infrared laser, then the upper tower of cooling tower operator patrols when picking up, and does not see laser beam, can not intuitive resolution laser transmitter 10 whether
It works normally.So it is most suitable for selecting red laser.
In the present embodiment, it further includes anti-tampering part that cooling tower, which surveys mist system, and anti-tampering part is arranged at optical window, with
It filters or keeps the sun off.Anti-tampering part can be the sunshade eaves being arranged above optical window, avoids sunlight from being emitted directly toward and wears mist
Laser pickoff 20；Plating filter coating either on optical window, only allows feux rouges to penetrate, will be from other colors of environment
Veiling glare filters.Or it can also be not provided with anti-tampering part, air duct outlet south is mounted on by will directly wear mist laser pickoff 20
Face, toward the north, mist laser pickoff 20 is worn in the sunlight injection come to avoid south to optical window.
Optionally, cooling tower surveys mist system and further includes the ground line connecting with cabinet 70 and/or be arranged on cabinet 70
Keep off the rain sunshade eaves.The present embodiment is welded with ground line on two cabinets 70, avoids being struck by lightning.
In the present embodiment, it is also provided with Temperature Humidity Sensor in two cabinets 70, measures the air in cabinet 70
Temperature and relative humidity.For each cabinet 70, if the temperature value of two Temperature Humidity Sensors is very close to humidity value also connects very much
Closely, then the temperature and humidity value measured is credible, can thus exclude only with a Hygrothermograph measurement contingency and its failure when
The error of indication.If two temperature values or two humidity value differences are larger, illustrate there is a Temperature Humidity Sensor to be broken, need to examine
Look into maintenance or replacement.
Optionally, the sunshade eaves that keeps off the rain is additionally provided with outside the optical window of two cabinets 70.
In the present embodiment, it further includes the dedusting instrument tuyere being arranged on the outside of optical window that cooling tower, which surveys mist system,
80, when dust storm day or more ambient impurities, clean instrument wind is connected, forms air curtain outside optical window, protects optical window
It is without damage, and optical window is avoided to be stained with ash, to guarantee to survey the accuracy of mist.
In the present embodiment, it further includes the demisting instrument tuyere being arranged on the inside of optical window that cooling tower, which surveys mist system,
90, when outdoor environment temperature is lower, air humidity is larger in cabinet 70, when optical window inner surface may haze, connects cleaning
Instrument wind, form lasting air-flow in optical window, optical window avoided to haze, with guarantee survey mist accuracy.
In the present embodiment, it further includes the heater 100 being arranged in cabinet 70 that cooling tower, which surveys mist system, works as outdoor environment
Temperature is very low, and when the electronic component being unfavorable in laser emitter 10 and laser pickoff works, opening electric heater 100 makes
The operating temperature obtained in cabinet 70 returns to normal working temperature range.
In the present embodiment, it further includes the radiator 110 being arranged in cabinet 70, radiator 110 that cooling tower, which surveys mist system,
Preferably finned-tube bundle water-cooled radiator 110 is unfavorable for laser emitter 10 and laser pickoff when outdoor environment temperature is very high
When interior electronic component works, finned-tube bundle water-cooled radiator 110 is opened, cooling water is walked in pipe, managed outer fin clearance and walk cabinet
Hot-air in 70, hot-air cooling water heat release into pipe, air themperature reduce.When finned-tube bundle water-cooled radiator 110 is installed,
Guarantee that finned tube water inlet end is low, water outlet is high, in 3 ° of inclinations.At the end of water-cooling season, inlet valve and outlet valve are closed, is beaten
Open water valve empties remaining water, is then shut off discharging valve.Cooling water is from the outlet of cooling tower circulating pump.
In the present embodiment, the side wall of cabinet 70 is additionally provided with shutter, in order to divulge information.
It disperses fog season, the upper tower of the operator of cooling tower patrols when picking up, and the optical window of two cabinets 70 is wiped with lens paper
Mouthful.In non-fog dispersal season, the lid of customization is screwed on the optical window of cabinet 70, protects the optical window of two cabinets 70.
It should be noted that multiple in above-described embodiment refer at least two.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
1, solve cooling tower in the prior art can not be judged automatically according to the situation that hazes of air outlet of cooling tower whether
Need the problem of dispersing fog；
2, the drawbacks of avoiding artificial judgment inaccuracy not in time ensure that the normal work and ambient enviroment of cooling tower
Safety；
3, the relative position that calibrating installation enables to laser emitter and wears between mist laser pickoff carries out automatic school
Just；
4, avoiding laser displacement caused by the factors such as cooling tower vibrations leads to the problem of measurement inaccuracy, guarantees cooling
The normal work of tower survey mist system.
Obviously, above-mentioned the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts all
Other embodiments should fall within the scope of the present invention.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, work, device, component and/or their combination.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein can be in addition to illustrating herein
Or the sequence other than those of description is implemented.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (19)
1. a kind of cooling tower surveys mist system characterized by comprising
Laser emitter (10)；
It wears mist laser pickoff (20), it is described to wear mist laser emitter (10) and the laser pickoff is separately positioned on cooling tower
The two sides of air duct outlet, the mist laser pickoff (20) of wearing can receive the laser letter of the laser emitter (10) sending
Number, and the laser signal is delivered to control system, institute is judged with the laser intensity received according to the laser pickoff
State whether the outlet of cooling tower air duct needs to disperse fog；
Calibrating installation (30), the calibrating installation (30) are arranged in the laser emitter (10) and/or the laser pickoff
On, the laser emitter (10) not to just it is described wear mist laser pickoff (20) when, the laser signal is emitted to the school
On standard apparatus (30), according to laser emitter described in the feedback adjustment of the calibrating installation (30) (10), so that the laser is sent out
To just, the laser signal of laser emitter (10) transmitting can be by institute for emitter (10) and the mist laser pickoff (20) of wearing
It states and wears mist laser pickoff (20) reception.
2. cooling tower according to claim 1 surveys mist system, which is characterized in that the calibrating installation (30) includes:
Light-intaking tube (31), the laser signal are passed through along the axis of the light-intaking tube (31) and are worn described in the light-intaking tube (31) injection
Mist laser pickoff (20)；
Multiple reflecting components, the reflecting component is connect with the periphery of the light-intaking tube (31), and the axis along the light-intaking tube (31)
To arrangement, the reflecting component can laser signal in reflected illumination to the reflecting component, and entering by the light-intaking tube (31)
The outlet end of mouth end to the light-intaking tube (31), the junction of at least partly described reflecting component and the light-intaking tube (31) sequentially connects
Connecing the trajectory line to be formed is helix.
3. cooling tower according to claim 2 surveys mist system, which is characterized in that all reflecting components include at least two
The reflector (32) being arranged in pairs, two be arranged in pairs the reflector (32) are oppositely arranged on the two of the light-intaking tube (31)
Side, and the arrival end close to the light-intaking tube (31).
4. cooling tower according to claim 3 surveys mist system, which is characterized in that two reflector (32) edges being arranged in pairs
The circumferentially-spaced 180 degree of the light-intaking tube (31) is arranged, and is located in the same level of the light-intaking tube (31).
5. cooling tower according to claim 3 surveys mist system, which is characterized in that two reflector (32) edges being arranged in pairs
Direction far from the light-intaking tube (31) is tilted to the arrival end of the light-intaking tube (31) or outlet end.
6. cooling tower according to claim 2 surveys mist system, which is characterized in that all reflecting components include:
Multiple upper reflectors (33), horizontal plane is upper where the upper reflector (33) is located at the axis of the light-intaking tube (31)
Side, each upper reflector (33) are arranged successively along the axial direction of the light-intaking tube (31), and by the entrance of the light-intaking tube (31)
It holds to the outlet end of the light-intaking tube (31), the upper reflector (33) and the junction of the light-intaking tube (31) are sequentially connected with shape
At upper trajectory line be helix；
Multiple lower reflectors (34), the lower reflector (34) are located under the axis place horizontal plane of the light-intaking tube (31)
Side, each lower reflector (34) are arranged successively along the axial direction of the light-intaking tube (31), and by the entrance of the light-intaking tube (31)
It holds to the outlet end of the light-intaking tube (31), the lower reflector (34) and the junction of the light-intaking tube (31) are sequentially connected with shape
At lower trajectory line be helix, the rotation direction of the upper trajectory line is identical as the rotation direction of the lower trajectory line.
7. cooling tower according to claim 6 surveys mist system, which is characterized in that the upper reflector (33) and it is described it is lower instead
Light device (34) radially extending along the light-intaking tube (31), the quantity phase of the upper reflector (33) and the lower reflector (34)
It together and is arranged in pairs, the upper reflector (33) being arranged in pairs and the lower reflector (34) are located at the light-intaking tube
(31) opposite two sides.
8. cooling tower according to any one of claim 1 to 7 surveys mist system, which is characterized in that the cooling tower surveys mist
System further includes standard apparatus (40), and the standard apparatus (40) includes:
Spectroscope (41), the spectroscope (41) are located on the path of the laser signal；
A part of the laser signal is reflexed to the reference laser by reference laser receiver (42), the spectroscope (41)
Receiver (42), another part of the laser signal pass through spectroscope (41) be irradiated to it is described wear mist laser pickoff (20) or
On the calibrating installation (30), the control system compares the laser intensity and institute that the reference laser receiver (42) receives
The laser intensity that laser pickoff receives is stated, when the laser intensity of the laser intensity for wearing mist laser and the reference laser
Ratio when being less than preset fog dispersal threshold value, the control system controls fog dissipation system and disperses fog.
9. cooling tower according to claim 8 surveys mist system, which is characterized in that the cooling tower surveys mist system further include:
Multiple brackets (50), the bracket (50) are fixed on cooling tower air duct exit；
Multiple mobile platforms (60), the mobile platform (60) are movably arranged on the bracket (50)；
Multiple cabinets (70), the cabinet (70) are arranged on the mobile platform (60), the laser emitter (10) and institute
It states and wears mist laser pickoff (20) and be separately positioned in the cabinet (70), and the laser emitter (10) and the base
In the same cabinet (70), the side wall of the cabinet (70) has optical window, the laser for standard apparatus (40) setting
The laser signal of transmitter (10) transmitting passes through and wears mist laser pickoff (20) described in optical window injection.
10. cooling tower according to claim 9 surveys mist system, which is characterized in that the cooling tower surveys mist system and further includes
Anti-tampering part, the anti-tampering part is arranged at the optical window, to filter or keep the sun off.
11. cooling tower according to claim 9 surveys mist system, which is characterized in that the cooling tower surveys mist system and further includes
The ground line being connect with the cabinet (70) and/or the sunshade eaves that keeps off the rain being arranged on the cabinet (70).
12. cooling tower according to claim 9 surveys mist system, which is characterized in that the cooling tower surveys mist system and further includes
Temperature Humidity Sensor, the Temperature Humidity Sensor setting is in the cabinet (70), to detect the temperature in the cabinet (70)
And humidity.
13. cooling tower according to claim 12 surveys mist system, which is characterized in that the Temperature Humidity Sensor be it is multiple,
And at least one described Temperature Humidity Sensor is provided in each cabinet (70).
14. cooling tower according to claim 9 surveys mist system, which is characterized in that the cooling tower surveys mist system and further includes
Dedusting on the outside of the optical window is set with instrument tuyere (80).
15. cooling tower according to claim 9 surveys mist system, which is characterized in that the cooling tower surveys mist system and further includes
Demisting on the inside of the optical window is set with instrument tuyere (90).
16. cooling tower according to claim 9 surveys mist system, which is characterized in that the cooling tower surveys mist system and further includes
The heater (100) being arranged in the cabinet (70).
17. cooling tower according to claim 9 surveys mist system, which is characterized in that the cooling tower surveys mist system and further includes
The radiator (110) being arranged in the cabinet (70).
18. cooling tower according to claim 17 surveys mist system, which is characterized in that the side wall of the cabinet (70) is also set up
There is shutter.
19. cooling tower according to any one of claim 1 to 7 surveys mist system, which is characterized in that the laser signal is
Red laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910340882.9A CN110082268B (en) | 2019-04-25 | 2019-04-25 | Cooling tower fog measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910340882.9A CN110082268B (en) | 2019-04-25 | 2019-04-25 | Cooling tower fog measuring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110082268A true CN110082268A (en) | 2019-08-02 |
| CN110082268B CN110082268B (en) | 2022-06-14 |
Family
ID=67416914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910340882.9A Active CN110082268B (en) | 2019-04-25 | 2019-04-25 | Cooling tower fog measuring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110082268B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838662A (en) * | 2022-05-20 | 2022-08-02 | 宝武集团鄂城钢铁有限公司 | Heating furnace laser detection system |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003254888A (en) * | 2002-03-05 | 2003-09-10 | Shimadzu Corp | Method for measuring suspended particulate matter |
| CN1577181A (en) * | 2003-06-30 | 2005-02-09 | 株式会社大宇电子 | Apparatus and method for aligning holographic ROM system |
| JP2006256496A (en) * | 2005-03-17 | 2006-09-28 | Denso Corp | Window fogging detecting device |
| CN103439232A (en) * | 2013-08-30 | 2013-12-11 | 合肥工业大学 | Obscuration type soot particle concentration measuring method and device thereof |
| CN104345019A (en) * | 2013-08-05 | 2015-02-11 | 中北大学 | Muzzle smoke testing device and method |
| CN105334550A (en) * | 2014-08-14 | 2016-02-17 | 滕州市飞天激光自动化技术有限公司 | Automatic laser seeking calibration device |
| US20170038290A1 (en) * | 2014-04-08 | 2017-02-09 | Mitsubishi Electric Corporation | Floating particle detection device |
| CN106438220A (en) * | 2016-12-01 | 2017-02-22 | 三重型能源装备有限公司 | System and method for monitoring dangerous torsion changes of draught fan tower drum |
| CN208026868U (en) * | 2018-04-04 | 2018-10-30 | 河南华泰规划勘测设计咨询有限公司 | A kind of rangefinder for engineering survey |
| CN109030363A (en) * | 2018-08-17 | 2018-12-18 | 杭州因诺维新科技有限公司 | A kind of laser gas analyzer |
| CN208398894U (en) * | 2018-06-14 | 2019-01-18 | 上海一航凯迈光机电设备有限公司 | Full weather conditions laser far-distance examines debugging apparatus |
| CN208476731U (en) * | 2018-04-18 | 2019-02-05 | 刘作振 | A kind of intelligent apparatus of combined type on-line monitoring atmospheric haze pollution sources |
-
2019
- 2019-04-25 CN CN201910340882.9A patent/CN110082268B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003254888A (en) * | 2002-03-05 | 2003-09-10 | Shimadzu Corp | Method for measuring suspended particulate matter |
| CN1577181A (en) * | 2003-06-30 | 2005-02-09 | 株式会社大宇电子 | Apparatus and method for aligning holographic ROM system |
| JP2006256496A (en) * | 2005-03-17 | 2006-09-28 | Denso Corp | Window fogging detecting device |
| CN104345019A (en) * | 2013-08-05 | 2015-02-11 | 中北大学 | Muzzle smoke testing device and method |
| CN103439232A (en) * | 2013-08-30 | 2013-12-11 | 合肥工业大学 | Obscuration type soot particle concentration measuring method and device thereof |
| US20170038290A1 (en) * | 2014-04-08 | 2017-02-09 | Mitsubishi Electric Corporation | Floating particle detection device |
| CN105334550A (en) * | 2014-08-14 | 2016-02-17 | 滕州市飞天激光自动化技术有限公司 | Automatic laser seeking calibration device |
| CN106438220A (en) * | 2016-12-01 | 2017-02-22 | 三重型能源装备有限公司 | System and method for monitoring dangerous torsion changes of draught fan tower drum |
| CN208026868U (en) * | 2018-04-04 | 2018-10-30 | 河南华泰规划勘测设计咨询有限公司 | A kind of rangefinder for engineering survey |
| CN208476731U (en) * | 2018-04-18 | 2019-02-05 | 刘作振 | A kind of intelligent apparatus of combined type on-line monitoring atmospheric haze pollution sources |
| CN208398894U (en) * | 2018-06-14 | 2019-01-18 | 上海一航凯迈光机电设备有限公司 | Full weather conditions laser far-distance examines debugging apparatus |
| CN109030363A (en) * | 2018-08-17 | 2018-12-18 | 杭州因诺维新科技有限公司 | A kind of laser gas analyzer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838662A (en) * | 2022-05-20 | 2022-08-02 | 宝武集团鄂城钢铁有限公司 | Heating furnace laser detection system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110082268B (en) | 2022-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101680685B (en) | Heliostat with integrated image-based tracking controller | |
| CN102692272A (en) | Photometric measurement method and rotatable photometric measurement integrating sphere device | |
| US20120174909A1 (en) | Heliostat Control Scheme Using Cameras | |
| CN205899006U (en) | Optical scan sensor | |
| CN102257357A (en) | Laser receiver for detecting a relative position | |
| RU2356031C2 (en) | Device and method to measure light transmission in atmosphere and to determine meteorological range of visibility | |
| CN110082268A (en) | Cooling tower surveys mist system | |
| CN104280344A (en) | System and method for measuring visibility based on digital photographing method | |
| CN102854138A (en) | Visibility measuring system and method based on digital camera shooting method | |
| CN109945847B (en) | Wall surface monitoring method and system based on line marking instrument | |
| US4432645A (en) | Forward-scatter visibility meter | |
| CN108393589A (en) | A kind of sighting device and application method of laser obstacle eliminating system | |
| CN202614375U (en) | Rotary luminosity measuring integrating sphere apparatus | |
| JP6958522B2 (en) | Laser radar device, laser radar system and rain detection method | |
| CA1141191A (en) | Forward-scatter visibility meter | |
| CN116429719A (en) | Visibility detector | |
| CN209803002U (en) | Visibility measurement system | |
| CN109696561A (en) | A kind of compound range wind speed measuring device and method | |
| CN109406410A (en) | A kind of visibility meter calibrating installation and calibration method | |
| CN212111110U (en) | Ground air disturbance detection device | |
| CN210269612U (en) | Visibility detection equipment with double baselines | |
| CN208276352U (en) | A kind of sighting device of laser obstacle eliminating system | |
| CN207882436U (en) | Except the 3-D scanning laser radar galvanometer system of condensation | |
| CN106713872A (en) | Image-based tunnel interior and exterior luminance detection system and detection method | |
| CN217978223U (en) | Highway visibility correlation correcting unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210428 Address after: 100011 Beijing Dongcheng District, West Binhe Road, No. 22 Applicant after: CHINA ENERGY INVESTMENT Corp.,Ltd. Applicant after: CHINA ENERGY CONSERVATION AND EMISSION REDUCTION Co.,Ltd. Applicant after: JINCI TECHNOLOGY INDUSTRIAL DEVELOPMENT Co.,Ltd. Applicant after: DEZHOU BEINUO WIND POWER MACHINERY EQUIPMENT Co.,Ltd. Address before: 100011 Beijing Dongcheng District, West Binhe Road, No. 22 Applicant before: CHINA ENERGY INVESTMENT Corp.,Ltd. Applicant before: CHINA ENERGY CONSERVATION AND EMISSION REDUCTION Co.,Ltd. Applicant before: BEIJING SHENHUA ZHONGJI ENERGY ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Applicant before: DEZHOU BEINUO WIND POWER MACHINERY EQUIPMENT Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |