CN201662553U - Oil fume acquisition sensing device - Google Patents
Oil fume acquisition sensing device Download PDFInfo
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- CN201662553U CN201662553U CN2009202659179U CN200920265917U CN201662553U CN 201662553 U CN201662553 U CN 201662553U CN 2009202659179 U CN2009202659179 U CN 2009202659179U CN 200920265917 U CN200920265917 U CN 200920265917U CN 201662553 U CN201662553 U CN 201662553U
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- induction installation
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Abstract
The utility model relates to an oil fume acquisition sensing device, in particular to an air-sensitive sensing device with an acquisition function, which comprises a sensing circuit, an acquisition circuit, an analog/digital conversion circuit and a singlechip control circuit, wherein the sensing circuit consists of a metallic oxide sensing module and a gas flow sensing module and is used for acquiring analog signals; the acquisition circuit is connected with a transmitter and converts the analog signals acquired by the sensing circuit into current signals via the transmitter; and the input end of the analog/digital conversion circuit is connected with the singlechip control circuit, the output end is connected with a terminal processor, and the singlechip control circuit converts the current signals acquired by the acquisition circuit into digit range via operation. The utility model provides the oil fume acquisition sensing device which can detect oil fume concentration and oil fume quantity simultaneously, has low price, can bring convenience for a client to monitor oil fume and data utilization, and can also conveniently assist the environmental-protection department to acquire data at any time.
Description
Technical field
The utility model relates to a kind of oil smoke and gathers induction installation, especially a kind of air-sensitive sensing device with acquisition function.
Background technology
Smoke exhaust ventilator is the dynamic system of a time variation, and its operating condition is subjected to all multifactor combined influences such as seasonal variations, environmental baseline, business quality, feast situation, changes at any time, and is among the fluctuation all the time.Existing fume exhauster motor is in the middle of reality is used, no matter the air capacity that needs is many and few, generally all is the maximum speed operation during with design, seldom requires coupling fully with field condition.
Oil smoke is gathered the core technology part of induction installation as smoke exhaust ventilator, and its work efficiency and ruuning situation receive the concern of industry day by day.At present, lack a kind of oil smoke that can detect oil smoke concentration and oil smoke amount (oil smoke what) simultaneously on the market and gather induction installation.Existing oil smoke induction installation mainly contains following two kinds: 1, use the oil smoke detector of specialty that the toxic gas in the oil smoke is detected, this detection method is more accurate, but sense cycle length, complex steps, expense costliness; 2, use photoelectricity oil smoke induction installation that the oil smoke amount is detected, more effective when described photoelectricity oil smoke induction installation merely relies on oil smoke that the partition degree of light source is judged oil smoke concentration, but accuracy is relatively poor when judging oil smoke amount (oil smoke what).
In summary, along with the place that smoke exhaust ventilator is applied in industry and the resident's daily life is more and more, described prior art obviously exists inconvenience and defective in actual use, so be necessary to develop and a kind ofly can detect oil smoke concentration and oil smoke amount (oil smoke what) simultaneously, and low price, real-time height, transformation are simply, both make things convenient for the client to monitor oil smoke and data utilization, and also can conveniently assist environmental administration's oil smoke collection induction installation of image data at any time.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of and can detect oil smoke concentration and oil smoke amount (oil smoke what) simultaneously, and low price, real-time height, transformation are simply, both make things convenient for the client to monitor oil smoke and data utilization, and also can conveniently assist environmental administration's oil smoke collection induction installation of image data at any time.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of oil smoke is gathered induction installation, comprises sensor circuit, Acquisition Circuit, A/D conversion circuit, single chip machine controlling circuit;
Described sensor circuit is made up of metal oxide sensing module and gas flow sensing module, is used to obtain simulating signal;
Described Acquisition Circuit is connected with transmitter, will be converted to current signal by transmitter by the simulating signal that sensor circuit obtains;
The input end of described A/D conversion circuit is connected with single chip machine controlling circuit, and output terminal is connected with terminal handler, and the current signal that described single chip machine controlling circuit obtains Acquisition Circuit by computing is converted to digital range.
Further, described single chip machine controlling circuit is connected with Atmega128 single-chip microcomputer or intelligent control chip.
More specifically, described terminal handler is an industrial computer, receives external data by the RS232 serial ports.
More specifically, described industrial computer is connected with human-computer interface module, and described human-computer interface module provides a visualization interface to the user, in time corresponding various operational orders.
More specifically, described intelligent control chip is a programmable logic controller (PLC).
Further, described industrial computer is connected with human-computer interface module, and described human-computer interface module provides a visualization interface to the user, in time corresponding various operational orders.
Further, the input end of described sensor circuit is connected with semiconductor gas sensor.
Further, the output terminal of described single chip machine controlling circuit is connected with warning circuit.
Further, described warning circuit is connected with alarm set.
As preferably, described alarm set is a hummer, when single-chip microcomputer sends alerting signal, and the output alarm prompting of can correspondence sounding.
Preferred as another, described alarm set is a light emitting diode, when single-chip microcomputer sends alerting signal, and the output alarm prompting of can correspondence flashing.
The beneficial effects of the utility model are: judge oil smoke amount (oil smoke how much) accuracy rate height during (1) work, superior cost performance; (2) equipment is installed and is transformed conveniently; (3) single-chip microcomputer long service life reduces equipment maintenance cost; (4) sensor is strong for the adaptive faculty of mal-condition, and failure rate is low; (5) data query is convenient, can assist environmental administration's image data at any time.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the one-piece construction block scheme that a kind of oil smoke described in the utility model is gathered induction installation.
Embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined purpose is taked, below in conjunction with accompanying drawing and preferred embodiment, describe in detail as after.
Embodiment 1, and as shown in Figure 1, a kind of oil smoke is gathered induction installation, comprises sensor circuit, Acquisition Circuit, A/D conversion circuit, single chip machine controlling circuit; Described sensor circuit is made up of metal oxide sensing module and gas flow sensing module, is used to obtain simulating signal; Described Acquisition Circuit is connected with transmitter, will be converted to current signal by transmitter by the simulating signal that sensor circuit obtains; The input end of described A/D conversion circuit is connected with single chip machine controlling circuit, and output terminal is connected with terminal handler, and the current signal that described single chip machine controlling circuit obtains Acquisition Circuit by computing is converted to digital range.Wherein, described single chip machine controlling circuit is connected with the Atmega128 single-chip microcomputer.Described terminal handler is an industrial computer.Further, the input end of described sensor circuit is connected with semiconductor gas sensor.Further, the output terminal of described sensor circuit is connected with alarm set.As preferably, described alarm set is a hummer, when single-chip microcomputer sends alerting signal, and the output alarm prompting of can correspondence sounding.
Embodiment 2, and a kind of oil smoke is gathered induction installation, comprises sensor circuit, Acquisition Circuit, A/D conversion circuit, single chip machine controlling circuit; Described sensor circuit is made up of metal oxide sensing module and gas flow sensing module, is used to obtain simulating signal; Described Acquisition Circuit is connected with transmitter, will be converted to current signal by transmitter by the simulating signal that sensor circuit obtains; The input end of described A/D conversion circuit is connected with single chip machine controlling circuit, and output terminal is connected with terminal handler, and the current signal that described single chip machine controlling circuit obtains Acquisition Circuit by computing is converted to digital range.Wherein, described single chip machine controlling circuit is connected with intelligent control chip.Described intelligent control chip is a programmable logic controller (PLC).Described terminal handler is an industrial computer.More specifically, described computer computing machine is connected with human-computer interface module, and described human-computer interface module provides a visualization interface to the user, in time corresponding various operational orders.Further, the input end of described sensor circuit is connected with semiconductor gas sensor.Further, the output terminal of described sensor circuit is connected with alarm set.As preferably, described alarm set is a light emitting diode, when single-chip microcomputer sends alerting signal, and the output alarm prompting of can correspondence flashing.
Wherein, power circuit provides the intelligent chip operation required 24V direct current; The Atemega128 single-chip microcomputer of configuration can be in addition intelligent computing after the oil smoke related data of collecting, and according to the distribution proportion computational mathematics expectation of all gases, draws the concentration of oil smoke and what, and the result with computing is transported to terminal handler then; Transmitter: with sensor acquisition to platinum resistance be converted to the electric signal of 0-20mA; Acquisition Circuit comprises metal oxide sensing module and gas flow sensing module, and the metal oxide sensing module detects oil smoke concentration, and the gas flow sensing module detects oil smoke amount (oil smoke what); The input end of A/D conversion circuit receives the simulating signal that sensor circuit sends, and output terminal connecting terminal processor, described terminal handler are computer computing machine or intelligent control chip.More specifically, described computer computing machine is connected with human-computer interface module, and described human-computer interface module provides a visualization interface to the user, in time corresponding various operational orders.Described intelligent control chip is a programmable logic controller (PLC).
The soot gas induction installation is the critical component of lampblack absorber clarifier, whether the soot gas concentration that the high-performance induction installation is got rid of except automatic induction monitoring lampblack absorber exit meets the state specified standards, can also detect that rock gas, coal gas etc. are harmful, the concentration of inflammable gas.Soot gas sensor described in the utility model is the metal semiconductor gas sensor.Can effectively change the size of its resistance during work, handle the back by metering circuit and one-chip computer and realize monitoring and warning function in real time according to the variation of soot gas concentration.Content surpasses lower limit, with automatic vent; Being lower than lower limit will shut down automatically; Surpassing mxm. will report to the police automatically.
Described induction installation device resistance under low concentration changes greatly, and under the high concentration, device resistance changes little.According to these characteristics, the very suitable low concentration minimum gas that detects.Simultaneously according to employed source of the gas difference, come setting sensor to settle height, improve the sensitivity and the serviceable life of sensor, avoiding the oil smoke clogging sensor, so sensitivity can not change because of oil smoke stains, and reliability is better, long service life.Oil smoke is gathered induction installation and is mainly monitored CO in the soot gas, CO2, and NO, objectionable constituent such as NO2, measurement result that will predetermined monitoring project are passed to singlechip controller after through standard signal after series analog memory/digital conversion.
Human-computer interface module is computing machine and user's a interactive interface, and it provides a visual window interface to the user, is responsible for receiving user's mouse and KeyEvent, provides response.Finish communicating by letter of backstage and database manipulation by some subroutine of calling database module and communication module simultaneously.And have INTERFACE DESIGN characteristic very easily, make the close friend's of style unanimity window interfaces and can finish apace.Main interface module can adopt multithreading, guarantees that backstage and terminal can in time respond user's mouse and keyboard commands when carrying out data transmission, improve performance.
Oil smoke described in the utility model is gathered induction installation, comprises oil smoke data aggregation sensing part: can gather oil smoke concentration simultaneously and the oil smoke amount is convenient to the data utilization, and the discrimination height, it is low that gas sensor adapts to the rugged surroundings failure rate; The intelligent algorithm analysis part: single-chip microcomputer is to intelligent computing in addition after the oil smoke related data of collecting, distribution proportion computational mathematics expectation according to all gases, draw the concentration of oil smoke and what, calculate the concentration of oil smoke and what, and the digital range that is converted to convenient calculating and uses, oil smoke concentration is converted to the range of 0-100%, and the oil smoke amount is converted into volumetric flow rate unit, makes things convenient for the use of host computer and other application programs.
Oil smoke mainly is made of gases such as oxynitrides, aromatic compounds, carbon dioxide, fatty acid, alkane, alkene, aldehyde, and oil smoke exists two states when flowing and needs to investigate in airduct: oil smoke concentration and oil smoke amount (oil smoke what).Acquisition Circuit of the present utility model is made of jointly metal oxide sensing module and gas flow sensing module, and the metal oxide sensing module can be to detect (measurement range be between the 1-30ppm) of depleted gas, thereby judges the concentration of oil smoke; The gas flow sensing module can detect the throughput (flow measurement range the: between-300-300sccm) of gas in the unit interval, thereby oil smoke in the unit length airduct what are judged.
The simulating signal that the gas sensor that will be connected with Acquisition Circuit collects is transferred to transmitter by sensor circuit and is converted to the 0-20mA current signal, by the analog/digital signal conversion circuit current signal is converted to digital range again, for external terminal handler analysis and processing.
Workflow of the present utility model is: oil smoke is gathered induction installation implant in the airduct, oil smoke flows through from airduct, the metal oxide sensing module detects oil smoke concentration (measurement range is between 1-30ppm), and the gas flow sensing module detects what (flow measurement range the: between-300-300sccm) of oil smoke; The resistance signal that collects is converted to the electric signal of 0-20mA by transmitter, electric signal is transferred to the input end in the A/D conversion circuit, single-chip microcomputer to the oil smoke related data of collecting after intelligent computing in addition, distribution proportion computational mathematics expectation according to all gases, calculate the concentration of oil smoke and what, and being converted to the convenient digital range that calculates and use, the result with computing is transported to terminal handler then.
In sum, the utlity model has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on product structure or function, obvious improvement is arranged technically, and produced good and practical effect, and existing simple oil smoke induction installation has the multinomial effect of enhancement, thereby is suitable for practicality more, really is a new and innovative, progressive, practical new design.Further, the demand that more can adapt to market, be a kind ofly can detect oil smoke concentration and oil smoke amount (oil smoke what) simultaneously, and low price, real-time height, transformation are simply, both make things convenient for the client to monitor oil smoke and data utilization, and also can conveniently assist environmental administration's oil smoke collection induction installation of image data at any time.
Obviously the foregoing description is not to restriction of the present utility model, and above-mentioned a kind of oil smoke is gathered induction installation can also other many variations.Though gone through the utility model in conjunction with above-mentioned example, some that should be understood that professional person in the industry can expect apparently are identical, and alternative scheme all falls within the protection domain that the utility model claim limited.
Claims (10)
1. an oil smoke is gathered induction installation, it is characterized in that, comprises sensor circuit, Acquisition Circuit, A/D conversion circuit, single chip machine controlling circuit;
Described sensor circuit is made up of metal oxide sensing module and gas flow sensing module, is used to obtain simulating signal;
Described Acquisition Circuit is connected with transmitter, will be converted to current signal by transmitter by the simulating signal that sensor circuit obtains;
The input end of described A/D conversion circuit is connected with single chip machine controlling circuit, and output terminal is connected with terminal handler, and the current signal that described single chip machine controlling circuit obtains Acquisition Circuit by computing is converted to digital range.
2. oil smoke according to claim 1 is gathered induction installation, it is characterized in that described single chip machine controlling circuit is connected with Atmega128 single-chip microcomputer or intelligent control chip.
3. oil smoke according to claim 1 is gathered induction installation, it is characterized in that described terminal handler is an industrial computer, receives external data by the RS232 serial ports.
4. oil smoke according to claim 2 is gathered induction installation, it is characterized in that described intelligent control chip is a programmable logic controller (PLC).
5. oil smoke according to claim 3 is gathered induction installation, it is characterized in that described industrial computer is connected with human-computer interface module, and described human-computer interface module provides a visualization interface to the user, in time corresponding various operational orders.
6. oil smoke according to claim 1 is gathered induction installation, it is characterized in that the input end of described sensor circuit is connected with semiconductor gas sensor.
7. oil smoke according to claim 1 is gathered induction installation, it is characterized in that the output terminal of described single chip machine controlling circuit is connected with warning circuit.
8. oil smoke according to claim 7 is gathered induction installation, it is characterized in that described warning circuit is connected with alarm set.
9. oil smoke according to claim 8 is gathered induction installation, it is characterized in that described alarm set is a hummer, when single-chip microcomputer sends alerting signal, and the output alarm prompting of can correspondingly sounding.
10. oil smoke according to claim 8 is gathered induction installation, it is characterized in that described alarm set is a light emitting diode, when single-chip microcomputer sends alerting signal, and the output alarm prompting of can correspondingly flashing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202659179U CN201662553U (en) | 2009-12-30 | 2009-12-30 | Oil fume acquisition sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202659179U CN201662553U (en) | 2009-12-30 | 2009-12-30 | Oil fume acquisition sensing device |
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| Publication Number | Publication Date |
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| CN201662553U true CN201662553U (en) | 2010-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202659179U Expired - Fee Related CN201662553U (en) | 2009-12-30 | 2009-12-30 | Oil fume acquisition sensing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403596A (en) * | 2015-10-28 | 2016-03-16 | 上海交通大学 | Portable gas detection system based on nanometer compound material |
| CN108895505A (en) * | 2018-08-28 | 2018-11-27 | 汉威科技集团股份有限公司 | Range hood control device and method based on AC coupled formula electric charge induction method |
-
2009
- 2009-12-30 CN CN2009202659179U patent/CN201662553U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403596A (en) * | 2015-10-28 | 2016-03-16 | 上海交通大学 | Portable gas detection system based on nanometer compound material |
| CN108895505A (en) * | 2018-08-28 | 2018-11-27 | 汉威科技集团股份有限公司 | Range hood control device and method based on AC coupled formula electric charge induction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20101201 Termination date: 20111230 |