CN205481203U - Laser oil smoke sensing device - Google Patents
Laser oil smoke sensing device Download PDFInfo
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- CN205481203U CN205481203U CN201620019330.XU CN201620019330U CN205481203U CN 205481203 U CN205481203 U CN 205481203U CN 201620019330 U CN201620019330 U CN 201620019330U CN 205481203 U CN205481203 U CN 205481203U
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- oil smoke
- sensing device
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- discharging pipe
- scattered light
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Abstract
The utility model discloses a laser oil smoke sensing device for detect the oil smoke concentration in the exhaust pipe, include: the optical emitter for oil smoke material in the transmission light exposure exhaust pipe, the optical receiver for the scattered light of receipt oil smoke material in by exhaust pipe, and according to the corresponding relation of intensity yu the oil smoke material concentration of scattered light, intensity information turns into the signal of telecommunication with the scattered light, the follower is used for the basis the size of the signal of telecommunication calculates the concentration and the output of the interior oil smoke material of exhaust pipe. This sensing device and detect the oil smoke method and have output signal influenced by site environment less, anti -pollution can the reinforce, sensitivity, the advantage that the precision is higher.
Description
Technical field
This utility model relates to a kind of laser oil smoke sensing device.
Background technology
Along with the fast development of catering industry, fume pollution problem becomes increasingly conspicuous, it has also become one of focus that environmental protection is complained.The routine monitoring that cooking fume pollutes the most increasingly is paid close attention to by all circles.
Owing to cooking fume discharge belongs to intermittent discharge, low during height during concentration, and on-the-spot test condition is required height, sample need to take back lab analysis by traditional detection method, the detection cycle is long.Therefore seek a kind of to be suitable for cooking fume the most real-time on-the-spot detection method, it has also become the task of top priority.The most common principle being installed on the on-the-spot oil smoke detector many employings electrochemistry of discharge, electrochemical sensor is placed in exhaust gases passes, output signal by temperature, humidity in smoke discharging pipe, flue gas flow rate changes is affected greatly, and necessary and smoke contacts during electrochemical sensor detection oil smoke concentration, easily being contaminated by smoke, oil smoke detection accuracy is difficult to ensure that.
Utility model content
This utility model is intended to solve one of above-mentioned technical problem of the prior art the most to a certain extent.To this end, this utility model provides a kind of laser oil smoke sensing device, this sensing device output signal is affected less by site environment, and anti-pollution ability is strong, and sensitivity, precision are higher.
For achieving the above object, the technical scheme that this utility model is used is: a kind of laser oil smoke sensing device, for detecting the oil smoke concentration in smoke discharging pipe, including: optical transmitting set, irradiates the oil smoke material in smoke discharging pipe for launching light source；Optical receiver, for receiving by the scattered light of oil smoke material in smoke discharging pipe, and according to the intensity of scattered light and the corresponding relation of oil smoke material concentration, is converted into the signal of telecommunication by scattered light intensity information；Follower, for calculating the concentration of oil smoke material in smoke discharging pipe and exporting according to the size of the described signal of telecommunication.
Preferably, also including blower fan, the purging pore of described blower fan is arranged on optical receiver and receives the forward position of scattered light, for clean air causing optical receiver front to isolate the oil smoke material of smoke discharging pipe.
Preferably, described optical transmitting set is generating laser.
Preferably, the laser emitting power of described optical transmitting set is 20wm to 200wm.
Preferably, described optical receiver includes that optical sensor and convex lens, described convex lens are arranged on optical sensor front portion and the scattered light of smoke particle in smoke discharging pipe are gathered on optical sensor.
Preferably, described optical sensor and convex lens are set on same centrage.
Preferably, described optical transmitting set is set to 1 degree to 20 degree with the centerlines of optical sensor and convex lens.
Preferably, described follower is data processing unit and data output interface.
Compared with prior art, the having the beneficial effect that of a kind of laser oil smoke sensing device described in the utility model
1, laser oil smoke sensing device of the present utility model is arranged on outside smoke discharging pipe, it is to avoid affected by oil smoke material hot and humid in smoke discharging pipe, improves the service life of sensing device, is affected by site environment less simultaneously, and anti-pollution ability is strong.
2, this utility model by optical transmitting set and optical receiver with the use of, light source uses the laser that brightness is higher, stability, monochromaticity are stronger, and high brightness laser is radiated on soot particles generation light scattering；By the convex lens of optical receiver, scattered light is focused on the optical sensor of optical receiver again, sensitivity and the degree of accuracy of the concentration of detection oil smoke material can be improved.
3, described laser oil smoke sensing device of the present utility model also includes blower fan, and the purging pore of described blower fan is arranged on optical receiver and receives the forward position of scattered light, for clean air causing optical receiver front to isolate the oil smoke material of smoke discharging pipe.Sensitivity and the degree of accuracy of optical sensor can be improved further, it is to avoid oil smoke material is attached to convex lens surface.
Accompanying drawing explanation
Fig. 1 is the structural representation of sensing device.
Fig. 2 is the steps flow chart schematic diagram of detection oil smoke method.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, and the most same or similar label represents same or similar element or has the element of same or like function.The embodiment described below with reference to accompanying drawing is exemplary, it is intended to be used for explaining this utility model, and it is not intended that to restriction of the present utility model.
Specifically describe below in conjunction with the accompanying drawings according to this utility model embodiment.
As shown in Figure 1, a kind of laser oil smoke sensing device, oil smoke concentration in detecting smoke discharging pipe, in described smoke discharging pipe is smoke discharging pipe, laser oil smoke sensing device is mounted in outside the smoke discharging pipe of smoke discharging pipe, is equipped with through hole by offering on smoke discharging pipe, through hole connection smoke discharging pipe, optical transmitting set 1, for launching the oil smoke material 4 that light source 6 irradiates in smoke discharging pipe；Optical receiver 2, for receiving by the scattered light 5 of oil smoke material 4 in smoke discharging pipe, and according to the corresponding relation of the intensity of scattered light 5 with oil smoke material 4 concentration, this corresponding relation is that the intensity of scattered light 5 is proportional with oil smoke concentration, and scattered light 5 strength information is converted into the signal of telecommunication；Follower (not shown), for calculating the concentration of oil smoke material 4 in smoke discharging pipe according to the size of the described signal of telecommunication and exporting, described follower is data processing unit and data output interface.The way of output can be variation, such as RS232 or RS485 digital interface, 4～20mA or 1～5V analog interface, switching value etc..
In order to improve detection sensitivity and the degree of accuracy of laser oil smoke sensing device further, also include blower fan (not shown), the purging pore 3 of described blower fan is arranged on optical receiver 2 and receives the forward position of scattered light 5, for clean air causing optical receiver 2 front to isolate the oil smoke material 4 of smoke discharging pipe.So can improve sensitivity and the degree of accuracy of optical sensor 21 further, it is to avoid oil smoke material 4 is attached to convex lens 22 surface.The form of blower fan can also be variation.
According to the laser oil smoke sensing device that above-described embodiment of the present utility model provides, above-mentioned technical characteristic or additional technical feature are described further:
Described optical transmitting set 1 is generating laser.Light source 6 uses the laser that brightness is higher, stability, monochromaticity are stronger, and wherein, the laser emitting power of described optical transmitting set 1 is 20wm to 200wm.The needs of hot and humid oil smoke material 4 in the different smoke discharging pipe of the satisfied detection of energy.
Described optical receiver 2 includes that optical sensor 21 and convex lens 22, described convex lens 22 are arranged on optical sensor 21 front portion and the scattered light 6 of smoke particle in smoke discharging pipe are gathered on optical sensor 21.Described optical sensor 21 is set on same centrage with convex lens 22.By making scattered light 5 be gathered on optical sensor 21 at the anterior convex lens 22 that increases of optical sensor 21, improve sensitivity and the degree of accuracy of optical sensor 21.
Described optical transmitting set 1 is set to 1 degree to 20 degree with the centerlines of optical sensor 21 and convex lens 22.This angle is for irradiating best angle, and when laser is radiated on oil smoke material 4, scattered light 5 effect of oil smoke material 4 is best.
As in figure 2 it is shown, provide the laser oil smoke sensing device detection oil smoke method to its device according to above-described embodiment of the present utility model, step is as follows:
First, optical transmitting set 1 launches light source 6 to smoke discharging pipe, and light source 6 is radiated on the oil smoke material 4 of smoke discharging pipe.
Secondly, optical receiver 2 receives the scattered light 5 from smoke discharging pipe, and is converted into the signal of telecommunication according to scattered light 5 intensity of oil smoke material 4 reflection.
Finally, the concentration of oil smoke material 4 exporting in the size of the described signal of telecommunication is calculated smoke discharging pipe by follower (not shown).
Also include detection sensitivity and the degree of accuracy of promising further raising laser oil smoke sensing device, also include blower fan, the purging pore 3 of described blower fan is arranged on optical receiver 2 and receives the forward position of scattered light 5, for clean air causing optical receiver 2 front to isolate the oil smoke material 4 of smoke discharging pipe.So can improve sensitivity and the degree of accuracy of optical sensor 21 further, it is to avoid oil smoke material 4 is attached to convex lens 22 surface.The form of blower fan can also be variation.
Wherein, described optical transmitting set 1 is generating laser.Light source 6 uses the laser that brightness is higher, stability, monochromaticity are stronger, and wherein, the laser emitting power of described optical transmitting set 1 is 20wm to 200wm.The needs of hot and humid oil smoke material 4 in the different smoke discharging pipe of the satisfied detection of energy.
Described optical receiver 2 includes that optical sensor 21 and convex lens 22, described convex lens 22 are arranged on optical sensor 21 front portion and the scattered light 6 of smoke particle in smoke discharging pipe are gathered on optical sensor 21.Described optical sensor 21 is set on same centrage with convex lens 22.By making scattered light 5 be gathered on optical sensor 21 at the anterior convex lens 22 that increases of optical sensor 21, improve sensitivity and the degree of accuracy of optical sensor 21.
Described optical transmitting set 1 is set to 1 degree to 20 degree with the centerlines of optical sensor 21 and convex lens 22.This angle is for irradiating best angle, and when laser is radiated on oil smoke material 4, scattered light 5 effect of oil smoke material 4 is best.
Described follower is data processing unit and data output interface.
These are only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in scope of patent protection of the present utility model.
Claims (8)
1. a laser oil smoke sensing device, for detecting the oil smoke concentration in smoke discharging pipe, it is characterised in that including:
Optical transmitting set, irradiates the oil smoke material in smoke discharging pipe for launching light source；
Optical receiver, for receiving the scattered light of oil smoke material in smoke discharging pipe, and according to the intensity of scattered light and the corresponding relation of oil smoke material concentration, is converted into the signal of telecommunication by scattered light intensity information；
Follower, for calculating the concentration of oil smoke material in smoke discharging pipe and exporting according to the size of the described signal of telecommunication.
2. a kind of laser oil smoke sensing device as claimed in claim 1, it is characterized in that, also including blower fan, the purging pore of described blower fan is arranged on optical receiver and receives the forward position of scattered light, for clean air causing optical receiver front to isolate the oil smoke material of smoke discharging pipe.
3. a kind of laser oil smoke sensing device, it is characterised in that described optical transmitting set is generating laser.
4. a kind of laser oil smoke sensing device as claimed in claim 1, it is characterised in that the laser emitting power of described optical transmitting set is 20wm to 200wm.
5. a kind of laser oil smoke sensing device, it is characterized in that, described optical receiver includes that optical sensor and convex lens, described convex lens are arranged on optical sensor front portion and the scattered light of smoke particle in smoke discharging pipe are gathered on optical sensor.
6. a kind of laser oil smoke sensing device as claimed in claim 5, it is characterised in that described optical sensor and convex lens are set on same centrage.
7. a kind of laser oil smoke sensing device as claimed in claim 6, it is characterised in that described optical transmitting set is set to 1 degree to 20 degree with the centerlines of optical sensor and convex lens.
8. a kind of laser oil smoke sensing device as claimed in claim 1, it is characterised in that described follower is data processing unit and data output interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620019330.XU CN205481203U (en) | 2016-01-07 | 2016-01-07 | Laser oil smoke sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620019330.XU CN205481203U (en) | 2016-01-07 | 2016-01-07 | Laser oil smoke sensing device |
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| Publication Number | Publication Date |
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| CN205481203U true CN205481203U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620019330.XU Active CN205481203U (en) | 2016-01-07 | 2016-01-07 | Laser oil smoke sensing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444238A (en) * | 2016-01-07 | 2016-03-30 | 深圳市天环通科技有限公司 | Laser oil fume sensing device and oil fume detecting method thereof |
| CN110487688A (en) * | 2019-09-06 | 2019-11-22 | 宁波方太厨具有限公司 | The particulate matter detection means and detection method of kitchen ventilator |
| CN111122400A (en) * | 2018-10-30 | 2020-05-08 | 宁波方太厨具有限公司 | Oil smoke detection device and oil smoke detection method |
-
2016
- 2016-01-07 CN CN201620019330.XU patent/CN205481203U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444238A (en) * | 2016-01-07 | 2016-03-30 | 深圳市天环通科技有限公司 | Laser oil fume sensing device and oil fume detecting method thereof |
| CN111122400A (en) * | 2018-10-30 | 2020-05-08 | 宁波方太厨具有限公司 | Oil smoke detection device and oil smoke detection method |
| CN111122400B (en) * | 2018-10-30 | 2021-10-22 | 宁波方太厨具有限公司 | Oil smoke detection device and oil smoke detection method |
| CN110487688A (en) * | 2019-09-06 | 2019-11-22 | 宁波方太厨具有限公司 | The particulate matter detection means and detection method of kitchen ventilator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220406 Address after: 518000 1st floor, No. 351, Changfeng Road, Changzhen village, Yutang street, Guangming District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN TIANDEYI ENVIRONMENT TECHNOLOGY Co.,Ltd. Address before: 518000 22b, Guoxing building, No. 83, Changxing Road, Nanshan District, Shenzhen, Guangdong Patentee before: SHENZHEN TIANHUANTONG TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |