CN205450003U - Full -automatic oil -smoke testing equipment - Google Patents
Full -automatic oil -smoke testing equipment Download PDFInfo
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- CN205450003U CN205450003U CN201520962676.9U CN201520962676U CN205450003U CN 205450003 U CN205450003 U CN 205450003U CN 201520962676 U CN201520962676 U CN 201520962676U CN 205450003 U CN205450003 U CN 205450003U
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Abstract
The utility model discloses a full -automatic oil -smoke testing equipment relates to oil -smoke testing equipment technical field, a full -automatic oil -smoke testing equipment of this practicality, including constant speed sampling rifle, flue gas pipeline, check out test set body, constant speed sampling rifle with the sample gas after flue gas pipeline gets into the check out test set body, strain a section of thick bamboo through the steel wire and filter back discharge equipment, little computer automatic control accomplishes that the solvent injects into, a section of thick bamboo is strained to the ultrasonic wash steel wire, the infrared spectroscopy absorption process detects, the multi -parameter converts proofreaies and correct supervisor, final output oil smoke concentration detection result after the sampling period. Through fully enclosed organic solvent solvent recovery and regeneration cycle use, avoided the harm of organic solvent to operating personnel health, the atmosphere pollution of having avoided testing process solvent evaporation to cause, the environmental pollution who has avoided discarded solvent to cause bears.
Description
Technical field
This utility model relates to oil smoke detection equipment technical field, is specifically related to a kind of automatic cooking fumes detection equipment.
Background technology
Known, China has promulgated GB18483-2001 " cooking fume discharge standard " in calendar year 2001, this standard appendix A " the cooking fume method of sampling and the method for analysis " defines metal filter cylinders absorption and the sampling of Infrared Spectralcolorimetry Detect Oil cigarette and analysis method is de jure standards oil smoke detection method, Appendix B " oil smoke sampler technical specification " defines the steel wire filter cylinder technical specification gathering oil smoke, define " the oil smoke temperature in on-the-spot manual detection pipeline always used till today on this basis, relative humidity, air pressure, on-site manual is sampled, on-site manual changes sampling head, laboratory artificial ultrasound ripple rinses steel wire filter cylinder, artificial calibration, manual detection, manually calculate correction " etc. all by the oil smoke discharge Concentration Testing program being accomplished manually.The cooking fume report submission cycle of standard is 15 working days, the most generally from cooking fume to submitting to about cooking fume report 20 consecutive days of needs, Surveillance is caused to submit to excessive cycle one of the main reasons to be exactly that oil smoke detection equipment is the most backward, needing to be divided into spot sampling to analyze the work of two parts with test in laboratory, all work is both needed to by professional's manual operation.Existing oil smoke detection method poor in timeliness and cost of human resources high the two defect are constantly subjected to denouncing of insider and measurand.The oil smoke detection common infrared spectrophotometer of use that present stage is conventional, needs the equipment preheating time of at least one hour, simultaneously need to by being accomplished manually contrastive test after manually preparing standard series, the detection cycle is long, and precision is extremely low, can only achieve ± 0.02mg/m3Certainty of measurement.Can volatilize a large amount of carbon tetrachloride during the detection of existing oil smoke detection method, directly operator's health be had undesirable effect, and carbon tetrachloride can only single use, environment is threatened by discarded carbon tetrachloride equally.
Summary of the invention
Invention to solve the technical problem that
nullThe purpose of this utility model is to provide a kind of automatic cooking fumes detection equipment，Meet National Standard of the People's Republic of China GB18483-2001 " cooking fume discharge standard " appendix A " the cooking fume method of sampling and the method for analysis "、Appendix B " oil smoke sampler technical specification "、The automatic cooking fumes detector of the regulation such as appendix C " assay method of oil smoke removal efficiency "，By " the on-the-spot artificial sample of GB18483-2001 standard method、Laboratory manual cleaning、The artificial constant volume of laboratory、Laboratory artificial infrared spectroscopy absorption process detect " etc. a series of manual operation processes be automatically finished，And realize the cycling and reutilization of organic solvent，Simultaneously，By using modulated infrared light supply、The technology such as phase-locked amplification，The Monitoring lower-cut of described national standard method is reduced more than an order of magnitude，Accuracy of detection improves more than an order of magnitude，Within the submission of original a few hours to a few days is detected data cycle time to 60 minutes；With the problem solving to propose in above-mentioned background technology.
Technical scheme
For reaching above-mentioned purpose, the technical scheme that this utility model provides is:
A kind of automatic cooking fumes detection equipment of the present utility model, including isokinetic sampling's rifle, smoke conveying duct, detection apparatus body；nullIn described isokinetic sampling's rifle head position, thin-walled isokinetic sampling's air inlet and temperature are set、Air pressure、Humidity、Flow transducer，Described smoke conveying duct is that antistatic adsorbs flexible pipe，At described detection apparatus body, knockout drum is set，First three-way valve，Vent valve，Fore-telling type threeway，Steel wire filter cylinder，Supersonic generator，Fore-telling type threeway，Second three-way valve，Filter，After filtration: temperature、Air pressure、Humidity、Flow transducer，Variable speed controllable sampling air pump，Accurate charge pump，3rd three-way valve，4th three-way valve，Circulation flushing pump，Buffer Pool，Two-port valve，Liquid pump，Organic solvent filters and water suction process tank，Organic solvent holding vessel，Hydraulic balance device，Standard solvent reference absorption cell，Sample detecting analyzes absorption cell，Circulating solvent Analyses of The Background pond，Modulated non-dispersion infrared light source，Infrared narrow band filter slice，Rpyroelectric infrared photosensitive detector，Signal preamplifier，Lock-in amplifier，High-accuracy data acquisition module，Micro-mainframe computer，Touch display screen，Wireless communication module，Power module，Radiator fan.
Further improving as this utility model, described isokinetic sampling's rifle thin-walled isokinetic sampling's air inlet can be changed with the wind speed range of adaptive 0.5m/s to 60m/s.
Preferably, the filler of oleophyllie hydrophobic it is filled with in described knockout drum.
Preferably, the described organic solvent in organic solvent holding vessel is carbon tetrachloride or tetrachloroethylene.
Preferably, described organic solvent filters and water suction process tank, organic solvent holding vessel and hydraulic balance device use integrated design, comprises described whole device and function thereof in a tank body.
Preferably, described modulated non-dispersion infrared light source uses simple harmonic wave modulation, and modulating frequency is between 0.1Hz and 1000Hz, and the modulated signal cycle is more than described modulated non-dispersion infrared light source and the time constant of described rpyroelectric infrared photosensitive detector.
Preferably, the measuring accuracy of described accurate charge pump must be better than ± 0.1ml, and maximum feed rate is not less than 100ml/min not less than 10ml/min, described circulation flushing pump maximum stream flow, and lift is not less than 3m.
Preferably, described steel wire filter cylinder oil fume acquisition efficiency is not less than 95%, a length of 56.00 ± 0.05mm of steel wire filter cylinder, steel wire filter cylinder diameter 17.00 ± 0.05mm, is provided with two steel wire filter cylinders.
Preferably, described circulating solvent Analyses of The Background pond can subtract background Posterior circle and utilize used organic solvent, and standard solvent reference absorption cell can carry out reference with the solvent in circulating solvent Analyses of The Background pond, and organic solution is changed in prompting when the limit is exceeded.
Beneficial effect
The technical scheme using this utility model to provide, compared with prior art, has the advantages that
(1) existing artificial sample is all automatically performed in sampling location by cooking fume equipment of the present utility model with analytical calculation process, samples and detects whole fully automated completing that work such as analysis, calibration calculations.Monitoring lower-cut can reach 0.001mg/m3, reducing more than an order of magnitude than manual method, accuracy of detection improves more than an order of magnitude, within the submission of original a few hours to a few days is detected data cycle time to 60 minutes.
(2) cooking fume equipment of the present utility model, utilize microcomputer as master control equipment, utilize computer program gather each sensing data and control vent valve and three-way valve, variable speed controllable sampling air pump, circulation are washed the actuators such as pump, liquid pump, supersonic generator, touch display and are completed " sampling by filtration ", " solvent washing ", " infrared absorption measurement ", " filter cylinder cleaning ", " solvent recovery ", " solvent reclamation ", " data process ", " data output " etc. and all detect process.It is characterized by: this utility model is not only simply will originally to need the operation being accomplished manually to change into being automatically performed, but realizing on the basis of fully-automated synthesis by using modulation non-dispersion infrared light source and lock-in amplifier technology, be greatly improved INFRARED ABSORPTION detection sensitivity, the shortest sampling period be greatly shortened, drastically reduce the area organic solvent usage amount while, Monitoring lower-cut and accuracy of detection are optimized more than an order of magnitude；Use also by totally enclosed organic solvent solvent recovery and regeneration cycle, it is to avoid the organic solvent infringement to operator's health, it is to avoid detection process solvent volatilizees the atmospheric pollution caused, it is to avoid the environmental pollution burden that spent solvent causes.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Embodiment 1
Refer to Fig. 1, this utility model provides a kind of technical scheme: a kind of automatic cooking fumes detects equipment, including isokinetic sampling's rifle, smoke conveying duct, three parts of detection apparatus body, device for transferring after the oil smoke sample gas of isokinetic sampling's rifle sampling is filtered by steel wire filter cylinder after smoke conveying duct enters detection apparatus body, sampling period terminates rear microcomputer host and has automatically controlled the programs such as solvent injection, the detection of Ultrasonic steel wire filter cylinder, infrared spectroscopy absorption process, multiparameter scalar correction, final output oil smoke concentration testing result.nullIn described isokinetic sampling's rifle head position, thin-walled isokinetic sampling's air inlet and temperature are set、Air pressure、Humidity、Flow transducer，Described smoke conveying duct is that antistatic adsorbs flexible pipe，At described detection apparatus body, knockout drum is set，First three-way valve，Vent valve，Fore-telling type threeway，Steel wire filter cylinder，Supersonic generator，Fore-telling type threeway，Second three-way valve，Filter，After filtration: temperature、Air pressure、Humidity、Flow transducer，Variable speed controllable sampling air pump，Accurate charge pump，3rd three-way valve，4th three-way valve，Circulation flushing pump，Buffer Pool，Two-port valve，Liquid pump organic solvent filters and water suction process tank，Organic solvent holding vessel，Hydraulic balance device，Standard solvent reference absorption cell，Sample detecting analyzes absorption cell，Circulating solvent Analyses of The Background pond，Modulated non-dispersion infrared light source，Infrared narrow band filter slice，Rpyroelectric infrared photosensitive detector，Signal preamplifier，Lock-in amplifier，High-accuracy data acquisition module，Micro-mainframe computer，Touch display screen，Wireless communication module，Power module，Radiator fan.The flue gas of sampling gun is entered from described isokinetic sampling's mouth, detection apparatus body is entered by described smoke conveying duct, fluid oil and condensed water mixture in flue gas are absorbed by described knockout drum and complete oil-water separation, isolated water freely can volatilize without long-term accumulated with sample gas, sample gas body after gas-liquid separation enters described steel wire filter cylinder through fore-telling type threeway, smoke particle thing in sample gas is filtered by steel wire filter cylinder and intercepts and captures, tail gas after filtration is after filtering: temperature, air pressure, humidity, described variable speed controllable sampling air pump is entered after flow transducer, sampling air pump is by outside tail gas device for transferring body, so far the sampling period terminates, start flushing cycle.Sampling gas circuit is closed simultaneously by the unlatching of organic solvent fluid path by described fore-telling type threeway, extracted in described organic solvent holding vessel by described accurate charge pump and entered the organic solvent of rated capacity to described steel wire filter cylinder and described circulation flushing infusion, supersonic generator and circulation flushing pump pole is started after injection, under the cooperation of ultrasound wave, the drainage screen of steel wire filter cylinder is repeatedly rinsed with the direction organic solvent contrary with airintake direction, the material of the interception on filter screen is flushed into organic solvent, after flushing cycle terminates, start the cycle of measuring.Described modulation non-dispersion infrared light source is started working, the non-dispersion infrared light that light source sends is respectively through standard solvent sample cell and tested solvent samples pond, infrared light after being absorbed by sample cell reaches the centre wavelength of relative direction and is respectively 3413nm, 3378nm, the described infrared narrow band filter slice of 3300nm, filtered arrowband infrared light arrives corresponding described rpyroelectric infrared photosensitive detector after each filter plate, the signal code of detector output respectively enters described preamplifier, lock-in amplifier, six road signals of lock-in amplifier output input described micro-mainframe computer respectively after described high accuracy number acquisition module completes A/D conversion, so far end cycle is detected, enter the recovery cycle.Complete the pollution organic solvent after detection and enter the filtration of described organic solvent and water suction process tank through two-port valve, discharge refills clean organic solvent and starts supersonic generator and circulating pump is carried out after terminating, solvent after cleaning again enters organic solvent and filters and water suction process tank, so repeats to the washing time of program setting cleaning procedure and terminates.Flushing and cleaning procedure enter the organic solvent particulate solid therein of organic solvent filtration and water suction process tank and are filtered, and liquefied mixture enters the molecular sieve of the interior filling of process tank, and the clean solvent described organic solvent solvent holding vessel of entrance after process is standby.In sampling process, the parameters such as the wind speed of cigarette inner tube smoke, cigarette temperature, relative humidity, air pressure are sent to described micro-mainframe computer by the sensor of described sampling gun front end, variable speed controllable sampling air pump is output control signals to after host control program converts, realize isokinetic sampling, after described filtration: sampled gas physical parameter is sent to described micro-mainframe computer by temperature, air pressure, humidity, flow transducer, after mainframe program correction conversion, participate in testing result mark ex. calculation.
nullOperation principle of the present utility model: use fore-telling type threeway and fluid path first three-way valve of micro-mainframe computer control、Second three-way valve，The 3rd three-way valve in gas circuit、4th three-way valve completes sampling and rinses with organic solvent、Clean the automatic switchover of fluid path，Detected sample gas is made to enter detection apparatus body by sampling gun and smoke conveying duct，After steel wire filter cylinder filters，With organic solvent, the smoke particle thing being filled into is rinsed，Oils and fats can be changed the infrared absorption characteristic of organic solvent after organic solvent dispersion，And at 3413nm、3378nm、Absworption peak is formed at tri-wavelength of 3300nm，Oil quality concentration information is obtained by the measurement changed by the organic solvent absorbability dissolved with oils and fats infrared to these three wavelength，The oil smoke concentration data under the status of criterion are obtained after a series of corrections calculate，It is alternately accomplished sampling and detection work by two steel wire filter cylinders，Realize uninterrupted sampling automatically to measure continuously；Completing the steel wire filter cylinder after measuring and can start the next sampling period after programme-control is cleaned automatically, all at detector, this most internal is automatically performed purifying regeneration process to organic solvent used by the flushing before detection and the cleaning after detection.
This utility model relates to the technological process of a kind of automatic cooking fumes detection equipment, comprises the following steps:
(1) in the sampling period: the organic solvent fluid path Close All connected with described steel wire filter cylinder, sampling gas circuit is the most open-minded, and described variable speed controllable air pump starts to bleed；Detection apparatus body is entered through described smoke conveying duct from described sampling gun, steel wire filter cylinder is arrived through knockout drum, the first three-way valve, fore-telling type threeway, particulate matter in oil smoke is filtered by the steel wire of steel wire filter cylinder and retains, after the gas of steel wire filter cylinder and fore-telling type threeway, the second three-way valve and filter is by described filtration: through variable speed controllable sampling air pump discharge after temperature, air pressure, humidity, flow transducer.Sampling period can set in main frame numeral, and set point is 1 minute to 600 minutes, 1 minute, minimum interval, and default value is 10 minutes.Use isokinetic sampling, the automatic record of Gas Parameters such as sampling period inner flue wind speed, air pressure, temperature, relative humidity, Gas Parameters record time interval 1 second.
null2) flushing cycle: the sampling period terminates rear air pump and is automatically stopped work，The whole described vent valve being connected with described steel wire filter cylinder cuts out，The 3rd three-way valve being connected、4th three-way valve is opened，Described accurate charge pump is started working，Organic solvent starts to inject the Buffer Pool connected with steel wire filter cylinder，Inject accurate charge pump after organic amount of solvents reaches setting value and be automatically stopped work，The 3rd three-way valve being attached thereto、4th three-way valve is also automatically switched off，Described circulation flushing pump and supersonic generator are started working，Circulation flushing pump drives organic solvent liquid stream to rinse steel wire filter cylinder with the direction contrary with sampling air flow，The smoke particle thing retained on steel wire filter cylinder is washed in organic solvent，Comprise sample detecting in circulation flushing organic solvent fluid path and analyze absorption cell、3rd three-way valve、Fore-telling type threeway、Steel wire filter cylinder、Fore-telling type threeway、4th three-way valve、Circulation flushing pump、Buffer Pool，Inject organic solvent capacity to set in main frame numeral，Set point is 5.0ml to 50.0ml，Minimum interval 0.1ml，Default value is 25.0ml；Circulation flushing pump drives solvent circulation flushing number of times can set in main frame numeral, and set point is 5 times to 500 times, 1 time, minimum interval, and default value is 40 times.
3) measure the cycle: analyze modulated non-dispersion infrared light source corresponding to absorption cell with described sample detecting and start to work under periodic signal is modulated, the infrared light sent is analyzed absorption cell also cross described standard solvent reference absorption cell and sample detecting and arrives each self-corresponding described arrowband infrared filter, enter filtered infrared beam and arrive each self-corresponding described rpyroelectric infrared detector, detection signal and reference signal are respectively through preposition amplification, phase-locked it is amplified into described high accuracy number acquisition module, described micro-mainframe computer is entered after A/D changes, calculate together with the Gas Parameters of sampling period record, finally draw oil smoke concentration.
null4) cleaning frequency: after completing measurement process，Open two-port valve，Start described liquid pump，Solvent is filtered and water suction process tank through organic solvent，Enter described organic solvent holding vessel，Discharge closes described two-port valve after terminating，Then described accurate charge pump is started，Organic solvent starts to inject the Buffer Pool connected with steel wire filter cylinder，Inject accurate charge pump after organic amount of solvents reaches setting value and be automatically stopped work，The 3rd three-way valve being attached thereto also is automatically switched off，Described circulation flushing pump and supersonic generator are started working，Circulating pump drives organic solvent liquid stream to rinse steel wire filter cylinder with the direction contrary with sampling air flow，Cleaning opens two-port valve after terminating，Start described liquid pump，Solvent is filtered and water suction process tank through organic solvent，Enter described organic solvent holding vessel，The number of times of repeated washing can set at described micro-mainframe computer from 1 time to 30 time，Default value is 3 times.
Embodiment the most of the present utility model, for the ordinary skill in the art, being appreciated that in the case of without departing from principle of the present utility model and spirit and these embodiments can carry out multiple change, revise, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (8)
1. an automatic cooking fumes detection equipment, including isokinetic sampling's rifle, smoke conveying duct, detection apparatus body；nullIt is characterized in that: in described isokinetic sampling's rifle head position, thin-walled isokinetic sampling's air inlet and temperature are set、Air pressure、Humidity、Flow transducer，Described smoke conveying duct is that antistatic adsorbs flexible pipe，At described detection apparatus body, knockout drum is set，First three-way valve，Vent valve，Fore-telling type threeway，Steel wire filter cylinder，Supersonic generator，Fore-telling type threeway，Second three-way valve，Filter，After filtration: temperature、Air pressure、Humidity、Flow transducer，Variable speed controllable sampling air pump，Accurate charge pump，3rd three-way valve，4th three-way valve，Circulation flushing pump，Buffer Pool，Two-port valve，Liquid pump，Organic solvent filters and water suction process tank，Organic solvent holding vessel，Hydraulic balance device，Standard solvent reference absorption cell，Sample detecting analyzes absorption cell，Circulating solvent Analyses of The Background pond，Modulated non-dispersion infrared light source，Infrared narrow band filter slice，Rpyroelectric infrared photosensitive detector，Signal preamplifier，Lock-in amplifier，High-accuracy data acquisition module，Micro-mainframe computer，Touch display screen，Wireless communication module，Power module，Radiator fan.
A kind of automatic cooking fumes detection equipment the most according to claim 1, it is characterised in that: described isokinetic sampling's rifle thin-walled isokinetic sampling's air inlet can be changed with the wind speed range of adaptive 0.5m/s to 60m/s.
A kind of automatic cooking fumes detection equipment the most according to claim 1, it is characterised in that: it is filled with the filler of oleophyllie hydrophobic in described knockout drum.
A kind of automatic cooking fumes detection equipment the most according to claim 1, it is characterised in that: the described organic solvent in organic solvent holding vessel is carbon tetrachloride or tetrachloroethylene.
A kind of automatic cooking fumes detection equipment the most according to claim 1, it is characterized in that: described organic solvent filters and water suction process tank, organic solvent holding vessel and hydraulic balance device use integrated design, comprises described whole device and function thereof in a tank body.
A kind of automatic cooking fumes detection equipment the most according to claim 1, it is characterized in that: described modulated non-dispersion infrared light source uses simple harmonic wave modulation, modulating frequency is between 0.1Hz and 1000Hz, and the modulated signal cycle is more than described modulated non-dispersion infrared light source and the time constant of described rpyroelectric infrared photosensitive detector.
A kind of automatic cooking fumes detection equipment the most according to claim 1, it is characterized in that: the measuring accuracy of described accurate charge pump must be better than ± 0.1ml, maximum feed rate is not less than 100ml/min not less than 10ml/min, described circulation flushing pump maximum stream flow, and lift is not less than 3m.
A kind of automatic cooking fumes detection equipment the most according to claim 1, it is characterized in that: described steel wire filter cylinder oil fume acquisition efficiency is not less than 95%, a length of 56.00 ± the 0.05mm of steel wire filter cylinder, steel wire filter cylinder diameter 17.00 ± 0.05mm, be provided with two steel wire filter cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520962676.9U CN205450003U (en) | 2015-11-26 | 2015-11-26 | Full -automatic oil -smoke testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520962676.9U CN205450003U (en) | 2015-11-26 | 2015-11-26 | Full -automatic oil -smoke testing equipment |
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| Publication Number | Publication Date |
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| CN205450003U true CN205450003U (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520962676.9U Expired - Fee Related CN205450003U (en) | 2015-11-26 | 2015-11-26 | Full -automatic oil -smoke testing equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950386A (en) * | 2016-01-07 | 2017-07-14 | 深圳市力德环保工程有限公司 | A kind of automatic cooking fumes detection device |
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- 2015-11-26 CN CN201520962676.9U patent/CN205450003U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950386A (en) * | 2016-01-07 | 2017-07-14 | 深圳市力德环保工程有限公司 | A kind of automatic cooking fumes detection device |
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