CN104165833A - Device and method for detecting port dust pollution level - Google Patents
Device and method for detecting port dust pollution level Download PDFInfo
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- CN104165833A CN104165833A CN201410448712.XA CN201410448712A CN104165833A CN 104165833 A CN104165833 A CN 104165833A CN 201410448712 A CN201410448712 A CN 201410448712A CN 104165833 A CN104165833 A CN 104165833A
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- photoelectric sensor
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Abstract
The invention provides a device and a method for detecting the port dust pollution level, and belongs to the field of dust detection. The device comprises a shell and at least two groups of photoelectric sensors arranged in the shell, wherein a transmitting head and a receiving head of one group of photoelectric sensor are correspondingly arranged at the front and rear sides of the shell, and a transmitting head and a receiving head of another group of photoelectric sensor are correspondingly arranged at the left and right sides of the shell; correlation light beams formed by the two groups of photoelectric sensors are skew lines; a compressed air sprayer is respectively arranged beside the transmitting head and the receiving head of each group of photoelectric sensor. The device and the method have the characteristics of rapidness, high efficiency, high sensor tolerance, low cost and high robustness in the detection of port dust concentration.
Description
Technical field
The invention belongs to dust detection field, be specifically related to pick-up unit and the method for a kind of harbour dust pollution degree.
Background technology
The quality of air quality has become an important indicator weighing a city and even a national quality of the life gradually.Harbour produces from a kind of cargo handling process of extensive style more and more to future development energy-conservation, efficient, environmental protection.The majority of bulk cargo terminals shipment is the materials such as coke, coal, granular ore, the serious phenomenon of dust for harbour bulk cargo terminals in kinds of goods transhipment and harbour handling process, the means of a variety of detections and inhibition dust have been proposed now, but these means all too complicated, efficiency is low, and cost is high.
Summary of the invention
The object of the invention is to solve the difficult problem existing in above-mentioned prior art, pick-up unit and the method for a kind of harbour dust pollution degree is provided, can detect harbour dust concentration quickly and efficiently, sensor tolerance is high, with low cost, robustness is high.
The present invention is achieved by the following technical solutions:
A pick-up unit for harbour dust pollution degree, comprises shell and at least two group photoelectric sensors is in the enclosure installed;
The emitting head of one group of photoelectric sensor and Receiver correspondence are arranged on the both sides, front and back of shell, and the emitting head of another group photoelectric sensor and Receiver correspondence are arranged on the left and right sides of shell;
What two groups of photoelectric sensors formed is different surface beeline to irradiating light beam;
At emitting head and the other compressed air spray head that is equipped with of Receiver of every group of photoelectric sensor.
Described compressed air spray head, by compressed air electromagnetic valve control, cleans the dust on emitting head and Receiver by the pressurized air of ejection.
Described shell is " mouth " font body fuselage.
The method of utilizing the pick-up unit of described harbour dust pollution degree to detect dust, comprising:
Described photoelectric sensor converts light signal to switching signal, once photoelectricity is blocked, produces 12-24 volt d. c. voltage signal;
Under the poor environment of air quality, the pulse signal that the signal formation of photoelectric sensor is made up of switching value; Pulsed frequency is higher, represents that air quality is poorer;
The in the situation that of air severe contamination, photosignal is long-time 12 vor signal outputs, represents that dust concentration is very high, has reached not visible degree;
According to the data of photoelectric sensor, set dust concentration coefficient according to the photoimpact occurrence frequency of each group photoelectric sensor, obtain the real-time detected value of dust concentration by setting threshold.
Described method further comprises:
By compressed air electromagnetic valve control compressed air spray head, regularly or aperiodically transmitting terminal and receiving end are cleaned.
Compared with prior art, the invention has the beneficial effects as follows: the present invention is a kind of pick-up unit that detects dust concentration in harbour handling process and can trigger some other joint-action mechanism, its feature that detection for harbour dust concentration has rapidly and efficiently, sensor tolerance is high, with low cost, robustness is high of detecting.
Brief description of the drawings
Fig. 1 is the structural representation of the pick-up unit of harbour dust pollution degree.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Principle of work of the present invention is as follows:
The design has adopted two groups of photoelectricity correlation sensors to detect.The light of two groups of photoelectricity correlation sensor formation is antarafacial.This design has farthest reduced the generation due to the wrong report situation of non-dust mode.Photoelectric sensor is widely used in dust context of detection, if but photoelectric sensor transmitting terminal or receiving terminal are sticked by dust, can cause wrong report.
This sensor adds blast injection device, for cleaning photoelectric sensor emitting head and Receiver.This device design drawing as shown in Figure 1, comprises photoelectric sensor transmitting terminal 1, photoelectric sensor receiving end 2, compressed air spray head 3, " mouth " font body fuselage 4.
What two groups of photoelectric sensors formed is different surface beeline to irradiating light beam, and adopting the feature of two groups of photoelectric sensors is to judge more accurately the concentration of dust, and its reliability is stronger compared with single beam electricity correlation.
The course of work of the present invention is as follows:
1, photoelectricity correlation sensor converts light signal to switching signal, once photoelectricity is blocked, can produce 12-24 volt d. c. voltage signal.
2,, under the poor environment of air quality, photo-sensor signal will forms the pulse signal being made up of switching value.Frequency is unfixing, and 12 volts of pulsed frequencies are higher, represents that air quality is poorer.
3, the in the situation that of air severe contamination, photosignal is long-time 12 vor signal outputs.Represent that dust concentration is very high, reached not visible degree;
4, dust has larger adhesion, if transmitting terminal or receiving end are covered, can not accurately judge dust concentration, the clean accuracy for monitoring that transmits and receives end has vital effect, therefore the present invention adopts pressurized air mode to solve, and near each transmitting terminal and receiving end, compressed air spray head is installed.They are the control of air solenoid valve by compression, can be regular or irregular transmitting terminal and receiving end are cleaned.
It is low that the feature of this device is to set up cost, and detection efficiency is high, can automatically cleaning.Be applicable to the higher areas of dust concentration such as goods yard, harbour and carry out Real-Time Monitoring.Its host computer data can form Database Systems historical dust data are preserved for a long time, for the environmental protection operation of production run provides reliable basis.
Technique scheme is one embodiment of the present invention, for those skilled in the art, the invention discloses on the basis of application process and principle, be easy to make various types of improvement or distortion, and be not limited only to the described method of the above-mentioned embodiment of the present invention, therefore previously described mode is just preferred, and does not have restrictive meaning.
Claims (5)
1. the pick-up unit of harbour dust pollution degree and a method, is characterized in that: the pick-up unit of described harbour dust pollution degree comprises shell and at least two group photoelectric sensors are in the enclosure installed;
The emitting head of one group of photoelectric sensor and Receiver correspondence are arranged on the both sides, front and back of shell, and the emitting head of another group photoelectric sensor and Receiver correspondence are arranged on the left and right sides of shell;
What two groups of photoelectric sensors formed is different surface beeline to irradiating light beam;
At emitting head and the other compressed air spray head that is equipped with of Receiver of every group of photoelectric sensor.
2. the pick-up unit of harbour according to claim 1 dust pollution degree, is characterized in that: described compressed air spray head, by compressed air electromagnetic valve control, cleans the dust on emitting head and Receiver by the pressurized air of ejection.
3. the pick-up unit of harbour according to claim 1 and 2 dust pollution degree, is characterized in that: described shell is " mouth " font body fuselage.
4. a method of utilizing the pick-up unit of the arbitrary described harbour of claim 1 to 3 dust pollution degree to detect dust, is characterized in that: described method comprises:
Described photoelectric sensor converts light signal to switching signal, once photoelectricity is blocked, produces 12-24 volt d. c. voltage signal;
Under the poor environment of air quality, the pulse signal that the signal formation of photoelectric sensor is made up of switching value; Pulsed frequency is higher, represents that air quality is poorer;
The in the situation that of air severe contamination, photosignal is long-time 12 vor signal outputs, represents that dust concentration is very high, has reached not visible degree;
According to the data of photoelectric sensor, set dust concentration coefficient according to the photoimpact occurrence frequency of each group photoelectric sensor, obtain the real-time detected value of dust concentration by setting threshold.
5. method according to claim 4, is characterized in that: described method further comprises:
By compressed air electromagnetic valve control compressed air spray head, regularly or aperiodically transmitting terminal and receiving end are cleaned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410448712.XA CN104165833A (en) | 2014-09-01 | 2014-09-01 | Device and method for detecting port dust pollution level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410448712.XA CN104165833A (en) | 2014-09-01 | 2014-09-01 | Device and method for detecting port dust pollution level |
Publications (1)
| Publication Number | Publication Date |
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| CN104165833A true CN104165833A (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410448712.XA Pending CN104165833A (en) | 2014-09-01 | 2014-09-01 | Device and method for detecting port dust pollution level |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104914026A (en) * | 2015-06-12 | 2015-09-16 | 艾欧史密斯(中国)热水器有限公司 | Dust concentration detection method and dust concentration sensor |
| CN111545524A (en) * | 2020-05-13 | 2020-08-18 | 中国安全生产科学研究院 | Dust concentration sensor self-cleaning device |
| CN112497974A (en) * | 2020-12-11 | 2021-03-16 | 安徽文香信息技术有限公司 | Wisdom blackboard dust multidimensional dynamic monitoring dust collection device and system thereof |
| CN112595640A (en) * | 2020-12-11 | 2021-04-02 | 徐州市质量技术监督综合检验检测中心(徐州市标准化研究中心) | Dust concentration uniformity detection device and detection method thereof |
-
2014
- 2014-09-01 CN CN201410448712.XA patent/CN104165833A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104914026A (en) * | 2015-06-12 | 2015-09-16 | 艾欧史密斯(中国)热水器有限公司 | Dust concentration detection method and dust concentration sensor |
| CN104914026B (en) * | 2015-06-12 | 2018-08-07 | 艾欧史密斯(中国)热水器有限公司 | Dust concentration detecting method and sensor of dust concentration |
| CN111545524A (en) * | 2020-05-13 | 2020-08-18 | 中国安全生产科学研究院 | Dust concentration sensor self-cleaning device |
| CN112497974A (en) * | 2020-12-11 | 2021-03-16 | 安徽文香信息技术有限公司 | Wisdom blackboard dust multidimensional dynamic monitoring dust collection device and system thereof |
| CN112595640A (en) * | 2020-12-11 | 2021-04-02 | 徐州市质量技术监督综合检验检测中心(徐州市标准化研究中心) | Dust concentration uniformity detection device and detection method thereof |
| CN112595640B (en) * | 2020-12-11 | 2022-09-27 | 徐州市质量技术监督综合检验检测中心(徐州市标准化研究中心) | Dust concentration uniformity detection device and detection method thereof |
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Application publication date: 20141126 |
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| WD01 | Invention patent application deemed withdrawn after publication |