CN201247190Y - Real-time detection system for oil smoke concentration - Google Patents
Real-time detection system for oil smoke concentration Download PDFInfo
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- CN201247190Y CN201247190Y CNU2008200489145U CN200820048914U CN201247190Y CN 201247190 Y CN201247190 Y CN 201247190Y CN U2008200489145 U CNU2008200489145 U CN U2008200489145U CN 200820048914 U CN200820048914 U CN 200820048914U CN 201247190 Y CN201247190 Y CN 201247190Y
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- oil smoke
- smoke concentration
- light
- transmitting terminal
- time detecting
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Abstract
The utility model discloses a real-time detecting system of oil smoke concentration over-standard, which comprises a power supply module, a transmitting end and a detecting end, wherein the power supply module supplies power to the transmitting end and the detecting end, a gap for allowing oil smoke to flow through is arranged between the transmitting end and the detecting end, wherein the transmitting end comprises a light source, the detecting end comprises a single chip micro-computer whose inner is provided with an A/D converter, an arithmetic amplifying circuit module and a photoelectric conversion module, wherein light form the light source is traversed through the oil smoke and is transmitted to the photoelectric conversion module, the photoelectric conversion module is connected with the arithmetic amplifying circuit module, the arithmetic amplifying circuit module transmits the signals which are amplified to the input end of the single chip micro-computer of the A/D converter, and the single chip micro-computer processes and judges the signals and then outputs the detecting results. The system solves the problems that the oil smoke detecting period is low, the cost is high, the steps are complex and the like in the national standard method, and is beneficial for environmental protection departments to carry out the real time monitoring to judge whether the oil smoke which is discharged by relevant units is over the standard.
Description
Technical field
The utility model relates to the oil smoke detection technique, relates in particular to a kind of oil smoke concentration real-time detecting system.
Background technology
In recent years, continuous development and raising along with the Chinese national economy level, the catering industry fume pollution has become a big problem of city environmental pollution, the atmosphere pollution of its discharging is mainly gasoloid, wherein contain edible oil and food volatile matter at high temperature, the aldehydes, ketone, paraffinic and the products such as chain alkene, palycyclic aromatic that are formed by the oxidation of edible oil and food, cracking, hydrolysis, composition is very complicated.Studies show that; 270 degree---280 when spending being heated to for edible oil; in the condensation product of collecting up to a hundred compounds are arranged; from state; comprise gas, liquid, solid three-phase in the oil flue waste gas, wherein the particle diameter of liquid-solid phase particle is generally less than 10um, and liquid-solid phase granulate mixture stickability is strong; most of pollutant is water insoluble, and polarity is little.Along with each research institution to the going deep into of kitchen fume research, kitchen fume more and more causes people's extensive concern to the harm of human body, the report of relevant kitchen fume harm emerges in an endless stream on all kinds of medium.Nanjing investigation finds, the generation of 51.6% lung squamous cancer and 61.0% adenocarcinoma of lung is owing to fume pollution among the crowd.This shows that the fume pollution problem becomes increasingly conspicuous, oil smoke also more and more is subjected to people's attention to health effects, has become one of focus of environmental protection complaint.Therefore many countries comprise China, have formulated relevant law to control its discharging.The field monitoring of oil smoke concentration is one of problem of the environmental protection field task of top priority, but present monitoring method and technology still have a lot of incomplete places.Oil smoke sampling of stipulating in GB 18483-2001 " cooking fume emission standard (the trying) " appendix A of State Environmental Protection Administration's promulgation and analytical approach are on-the-spot stainless steel metal filter cylinder sampling, and the laboratory infrared spectrophotometer is analyzed (abbreviation National Standard Method).This method sense cycle is long, and expense is expensive, complex steps, on-the-spot test conditional request height, the needs that are difficult to satisfy the monitoring of cooking fume supervision and check and on-site law-enforcing.
A few class technology for cooking fume control of widespread use at present can satisfy the market demand that cooking fume is administered substantially.Detect through field monitoring and laboratory, can reach emission standard and " technical requirement of cooking fume cleaning equipment and inspection specifications (trying) " (HJ/T62-2001) requirement, the purifying oil fume effect is obvious.So normally in service as long as the fume purifier of fume in hotel, hotel, restaurant is in, about 90% particle all can be filtered in purification plant in the oil smoke, pollution on the environment is less.But some catering trade units are for reducing cost, and few as far as possible with even not using cooking fume control equipment, the unit cooking fume control equipment that perhaps has damages and do not discover, and oil smoke occurs directly to be discharged into airborne situation, causes environmental pollution.The oil smoke discharge that manpower, financial resources and the time more than relevant environmental administration can not have is like this supervised catering trade unit.Can only irregularly spot-check minority large-scale hotel or restaurant, be easy to be expected various ways escape monitoring, state's laws are performed practically no function by automatic storekeeper.Therefore develop the on-the-spot detection technique that oil smoke concentration exceeds standard, developing convenient and practical watch-dog has become one of problem of the environmental protection field task of top priority.
The utility model content
The purpose of this utility model is to overcome the prior art above shortcomings, a kind of oil smoke concentration real-time detecting system is provided, whether the on-the-spot discharging oil smoke concentration that detects exceeds standard, sense cycle is long in the solution National Standard Method, expense is expensive, problems such as complex steps are beneficial to environmental administration and monitor relevant unit in real time.This device has transmitting terminal and test side, and transmitting terminal through after absorption, reflection and the scattering of oil smoke, detects light intensity to reach the purpose of on-the-spot in real time monitoring oil smoke by the test side by a light emitted high light that good optically focused is arranged.The design is achieved through the following technical solutions.
A kind of oil smoke concentration real-time detecting system, it comprises power module, transmitting terminal and test side, power module is transmitting terminal and test side power supply, leave the gap that oil smoke is flow through between transmitting terminal and the test side, wherein transmitting terminal comprises light source, the test side comprises the single-chip microcomputer of built-in A/D converter, operational amplification circuit module and photoelectric conversion module, the light that light source sends passes oil smoke and transfers to photoelectric conversion module, photoelectric conversion module is connected with operational amplifier, signal after operational amplifier will amplify transfers to the A/D converter input end of single-chip microcomputer, and single-chip microcomputer deals with this signal and judges and afterwards export testing result.
In the above-mentioned oil smoke concentration real-time detecting system, described transmitting terminal also is provided with the relay of control light source, and this relay one end is connected with described light source, and the other end is connected with single-chip microcomputer.
In the above-mentioned oil smoke concentration real-time detecting system, described photoelectric conversion module comprises a photoelectric sensor, and described operational amplification circuit module is the dual power supply operational amplifier.
In the above-mentioned oil smoke concentration real-time detecting system, the 5V power output end of described power module is connected with single-chip microcomputer with light source, described power module ± 9V is connected with dual power supply operational amplifier two power ends respectively.
In the above-mentioned oil smoke concentration real-time detecting system, the luminous end place of the light source of described transmitting terminal also is provided with a condenser, and condenser is arranged in an emission pipe, transmitting terminal light source have condenser that parallel light is penetrated, spotlight effect is obvious; The sensitive surface place of the photoelectric sensor of described test side is provided with one and receives the light signal that the pipe reception comes from described emission pipe transmission.
In the above-mentioned oil smoke concentration real-time detecting system, described emission pipe and receive in the pipe and be equipped with two light holes has only the light beam of light hole size to pass through, and has not only strengthened accuracy of detection, and has reduced entering of oil smoke, prolongs system serviceable life.
In the above-mentioned oil smoke concentration real-time detecting system, described transmitting terminal and test side are each positioned in the airtight box, and two airtight boxes are provided with a hole separately and carry out optical signal transmission for emission pipe and reception pipe, the light signal output end of described emission pipe and the light signal receiving end that receives pipe mutually over against, the light that light source sends penetrates after by pipe, the light that penetrates also will pass through section of a pipe earlier before arriving photoelectric conversion module, eliminated external disturbance.
In the above-mentioned oil smoke concentration real-time detecting system, described power module is arranged in the airtight box at transmitting terminal place or is arranged in the airtight box at place, test side or separated into two parts and be each positioned at two airtight boxes.
In the above-mentioned oil smoke concentration real-time detecting system, described single-chip microcomputer also is sent to external unit by level switch module and serial ports with testing result.
Compared with prior art, the design has following advantage:
The utility model can use once installing, and need not manual intervention, need not loaded down with trivial details operation, stability is high, can realize on-the-spot monitoring in real time truly, all automatic measurement, the accuracy of detection height, data good reproducibility, the influence of having avoided site environment or manual operation to bring;
The pick-up unit oil smoke on-line monitoring in real time that exceeds standard of this cover oil smoke, be fit to very much set up an oil smoke detection system, in relevant environmental administration Surveillance center's computer is installed, by this complete equipment, environmental administration need not call, and just can clearly grasp this hotel and whether exist the phenomenon that oil smoke is stolen row;
The utility model is a kind ofly can detect method and the small and exquisite device of volume whether oil smoke concentration exceeds standard automatically, be placed on the dining room that may discharge oil smoke or throat or other exhaust outlet of unit, working stability, low in energy consumption, convenient test is simple, need not complicated operations.
Description of drawings
Fig. 1 is the structural representation of oil smoke concentration real-time detecting system in the utility model embodiment.Among the figure: 1. throat or exhaust outlet, 2. oil smoke air-flow, 3. transmitting terminal, 4. emission pipe, 5. light source, 6. condenser, 7. light hole, 8. test side, 9. airtight box, 10. photoelectric sensor, 11. transmitting terminal circuit boards, 12. test side circuit boards.
Fig. 2 is the hardware configuration synoptic diagram of oil smoke concentration real-time detecting system in the utility model embodiment.
Fig. 3 is the workflow synoptic diagram of single-chip microcomputer in the oil smoke concentration real-time detecting system in the utility model embodiment.
Embodiment
As shown in Figure 2, the device that the real-time detectable concentration in this scene exceeds standard, its general structure mainly is made of power module, transmitting terminal and test side, wherein transmitting terminal is provided with relay and led light source, and the test side is mainly by being A/D (modulus) conversion of core and monitoring module, computing amplification module with the single-chip microcomputer, being that the photoelectric conversion module of core constitutes with the photoelectric sensor.Light source sends high strength white light, and light is after oil smoke absorption, reflection and being reflected in chimney or the exhaust outlet, and strength signal is along with oil smoke concentration weakens.The test side adopts photoelectric sensor that light intensity signal is converted to electric signal, after the high precision operating amplifier amplification through the test side circuit board, is handled, judges, is exported by single-chip microcomputer.
What transmitting terminal adopted is that light source sends high light, in order to make light better optically focused is arranged, and has adopted condenser, and it is put in the emission pipe, has put two light holes in the emission pipe, has effectively eliminated the influence of outside sunshine and light etc.In order to improve the mission life of LED, the utility model adopts relay, work at ordinary times and adopt LED work 3 seconds, the dark 2 seconds mode of operation of simplifying has only under specific circumstances (as it is excessive to detect oil smoke concentration) in addition, and pick-up unit just enters the enhancing mode of operation, under this pattern, the LED continuous working obtains definite oil smoke numerical value up to the staff, and concrete workflow as shown in Figure 3.
The output voltage of photoelectric sensor is directly proportional with light intensity, stable performance.Because the output voltage of photoelectric sensor is less, and the reference voltage range of output voltage range and A/D converter do not match, so employing is amplified based on the amplifying circuit module of the high precision dual power supply operational amplifier output voltage to photoelectric sensor.
Detection scheme embodiment: as shown in Figure 1, at first placing transmitting terminal 3 and test side 8 devices respectively at throat or exhaust outlet 1 two ends relative position, transmitting terminal 3 usefulness light sources 5 send high strength white light, after process condenser 6 makes parallel light, behind the light hole in the transmitting terminal pipe 47, light is absorbed by oil smoke air-flow 21 li of throat or exhaust outlet, after reflection and the refraction, strength signal is along with oil smoke concentration weakens.Test side 8 adopts photoelectric sensor 10 that light intensity signal is converted to electric signal, after amplifying through the high precision operating amplifier of test side circuit board 12, by single-chip microcomputer handle, judge, output.
Concrete detection method is as follows:
(1) mixes up parameters such as the intensity of light source and enlargement factor in advance, set up the quantitative relationship of oil smoke concentration and light intensity.
(2) measure the threshold value that oil smoke concentration exceeds standard in advance.
(3) during operate as normal, single-chip microcomputer not only can oneself judge whether oil smoke concentration exceeds standard, but also can export oil smoke
Concentration value makes the staff oneself to judge, strengthens the reliability of testing result.
The method that oil smoke concentration exceeds standard is detected at this scene in real time, adopt physical method to detect oil smoke intensity, from state, comprise gas, liquid, solid three-phase in the oil smoke, wherein the particle diameter of liquid-solid phase particle is generally less than 10um, solid-state and liquid state can absorbing light, and the physical method that the utility model adopts is exactly to detect by light variation size in the transmission course in chimney or exhaust outlet.If oil smoke concentration is big, the light that light source sends absorbs, reflects and refraction through smoke particle, and the light that arrives on the photodetector just reduces; Otherwise if oil smoke concentration is little, the light that light source sends absorbs, reflects and refraction through smoke particle, and the light that arrives on the photodetector just increases.Thereby the power of photodetector output signal just can reflect the variation of oil smoke concentration.
All data of the cooking fume control equipment of a certain catering trade unit can be transferred to (comprising the switching time of oil smoke concentration, cooking fume control equipment etc.) computing center of environmental administration by oil smoke concentration real-time detecting system of the present utility model, so that monitoring.
Claims (9)
1, a kind of oil smoke concentration real-time detecting system that exceeds standard, it is characterized in that comprising power module, transmitting terminal and test side, power module is transmitting terminal and test side power supply, leave the gap that oil smoke is flow through between transmitting terminal and the test side, wherein transmitting terminal comprises light source, the test side comprises the single-chip microcomputer of built-in A/D converter, operational amplification circuit module and photoelectric conversion module, the light that light source sends passes oil smoke and transfers to photoelectric conversion module, photoelectric conversion module is connected with operational amplifier, signal after operational amplifier will amplify transfers to the A/D converter input end of single-chip microcomputer, and single-chip microcomputer deals with this signal and judges and afterwards export testing result.
2, oil smoke concentration real-time detecting system according to claim 1 is characterized in that described transmitting terminal also is provided with the relay of control light source, and this relay one end is connected with described light source, and the other end is connected with single-chip microcomputer.
3, oil smoke concentration real-time detecting system according to claim 1 is characterized in that described photoelectric conversion module comprises a photoelectric sensor, and described operational amplification circuit module is the dual power supply operational amplifier.
4, oil smoke concentration real-time detecting system according to claim 1 is characterized in that the 5V power output end of described power module is connected with single-chip microcomputer with light source, described power module ± 9V is connected with dual power supply operational amplifier two power ends respectively.
5, according to claim 1,2 or 3 described oil smoke concentration real-time detecting systems, it is characterized in that the luminous end place of the light source of described transmitting terminal also is provided with a condenser, condenser is arranged in an emission pipe; The sensitive surface place of the photoelectric sensor of described test side is provided with one and receives the light signal that the pipe reception comes from described emission pipe transmission.
6, oil smoke concentration real-time detecting system according to claim 5, it is characterized in that described emission pipe and receive in the pipe being equipped with two light holes, light hole is the solid circle, the centre has an aperture and is used for logical light, remainder is used to stop that oil smoke enters, filter oil smoke, prolong system serviceable life.
7, oil smoke concentration real-time detecting system according to claim 1, it is characterized in that described transmitting terminal and test side are each positioned in the airtight box, and two airtight boxes are provided with a hole separately for the emission pipe with receive pipe and carry out optical signal transmission, the light signal output end of described emission pipe and the light signal receiving end that receives pipe mutually over against.
8, oil smoke concentration real-time detecting system according to claim 1 is characterized in that described power module is arranged in the airtight box at transmitting terminal place or is arranged in the airtight box at place, test side or separated into two parts and be each positioned at two airtight boxes.
9, oil smoke concentration real-time detecting system according to claim 1 is characterized in that described single-chip microcomputer also is sent to external unit by level switch module and serial ports with testing result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200489145U CN201247190Y (en) | 2008-06-06 | 2008-06-06 | Real-time detection system for oil smoke concentration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200489145U CN201247190Y (en) | 2008-06-06 | 2008-06-06 | Real-time detection system for oil smoke concentration |
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| CN201247190Y true CN201247190Y (en) | 2009-05-27 |
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| CNU2008200489145U Expired - Fee Related CN201247190Y (en) | 2008-06-06 | 2008-06-06 | Real-time detection system for oil smoke concentration |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478610A (en) * | 2016-06-07 | 2017-12-15 | 宁波方太厨具有限公司 | A kind of photo-electric oil smoke sensor |
| CN107478609A (en) * | 2016-06-07 | 2017-12-15 | 宁波方太厨具有限公司 | A kind of photo-electric oil smoke sensor |
| CN107478576A (en) * | 2016-06-07 | 2017-12-15 | 宁波方太厨具有限公司 | A kind of safeguard structure of oil smoke sensor |
| CN107505242A (en) * | 2017-09-22 | 2017-12-22 | 温州益禾电子科技有限公司 | A kind of oil smoke concentration sensor |
| CN109100276A (en) * | 2018-10-11 | 2018-12-28 | 四川尚吕家居科技有限公司 | A kind of oil fume detection system |
| CN110361311A (en) * | 2019-07-30 | 2019-10-22 | 蓝天白云清洁服务有限公司 | A kind of oil smoke concentration detection sensor and detection method |
-
2008
- 2008-06-06 CN CNU2008200489145U patent/CN201247190Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478610A (en) * | 2016-06-07 | 2017-12-15 | 宁波方太厨具有限公司 | A kind of photo-electric oil smoke sensor |
| CN107478609A (en) * | 2016-06-07 | 2017-12-15 | 宁波方太厨具有限公司 | A kind of photo-electric oil smoke sensor |
| CN107478576A (en) * | 2016-06-07 | 2017-12-15 | 宁波方太厨具有限公司 | A kind of safeguard structure of oil smoke sensor |
| CN107478610B (en) * | 2016-06-07 | 2023-09-15 | 宁波方太厨具有限公司 | Photoelectric type oil smoke sensor |
| CN107478609B (en) * | 2016-06-07 | 2023-10-20 | 宁波方太厨具有限公司 | Photoelectric type oil smoke sensor |
| CN107478576B (en) * | 2016-06-07 | 2024-02-20 | 宁波方太厨具有限公司 | Protective structure of oil smoke sensor |
| CN107505242A (en) * | 2017-09-22 | 2017-12-22 | 温州益禾电子科技有限公司 | A kind of oil smoke concentration sensor |
| CN109100276A (en) * | 2018-10-11 | 2018-12-28 | 四川尚吕家居科技有限公司 | A kind of oil fume detection system |
| CN110361311A (en) * | 2019-07-30 | 2019-10-22 | 蓝天白云清洁服务有限公司 | A kind of oil smoke concentration detection sensor and detection method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20120606 |