CN211235421U - Monitoring device for concentration of oil smoke particles - Google Patents
Monitoring device for concentration of oil smoke particles Download PDFInfo
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- CN211235421U CN211235421U CN202021152578.6U CN202021152578U CN211235421U CN 211235421 U CN211235421 U CN 211235421U CN 202021152578 U CN202021152578 U CN 202021152578U CN 211235421 U CN211235421 U CN 211235421U
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Abstract
The utility model relates to the technical field of oil smoke monitoring, in particular to a monitoring device for the concentration of oil smoke particles, which comprises an optical monitoring element and is characterized in that the monitoring device also comprises a measuring pipe fitting which is arranged crosswise with a flue, the measuring pipe fitting is provided with an inner channel, the measuring pipe fitting is also provided with an oil smoke inlet for the oil smoke to enter the inner channel and a sweeping gas inlet for the sweeping gas for sweeping the oil smoke to enter the inner channel, the sweeping gas is conveyed in the inner channel along the direction close to the oil smoke inlet, the measuring pipe fitting is also provided with a mixed gas flow outlet for the sweeping gas and the oil smoke in the inner channel to flow out, the oil smoke inlet and the mixed gas flow outlet are arranged in sequence along the oil smoke flowing direction in the flue, the utility model can effectively avoid the optical monitoring element from being polluted by the oil smoke, keep the optical monitoring element clean, and reduce the maintenance and, the service life of the product is prolonged.
Description
Technical Field
The utility model relates to an oil smoke monitoring technology field especially relates to a monitoring devices of oil smoke particulate matter concentration.
Background
With the continuous development and development of the domestic catering industry, the dining halls of medium and large-sized restaurants are more and more, and the problem of catering pollution is more and more serious. The country pays more and more attention to the pollution, establishes corresponding national standards and puts new requirements on monitoring of the catering pollution. The demand for equipment for monitoring restaurant pollution is constantly expanding.
At present, the monitoring facilities to catering industry oil smoke particulate matter concentration mainly adopts extraction formula sampling, set up the oil smoke sampling head in the oil smoke passageway or the other sampling monitoring that carries out of oil smoke passageway side usually, the oil smoke sampling head need directly face or contact the oil smoke in the monitoring process, because the oil smoke still contains oil droplet except the particulate matter, extremely easily adhere to on the oil smoke sampling head, along with long-time sampling, there is more and more oil smoke absorption parcel on the oil smoke sampling head, cause the measuring accuracy decline of oil smoke sampling head easily, simultaneously can accelerate the ageing of oil smoke sampling head, cause the oil smoke sampling head to become invalid even, this also leads to the oil smoke sampling head to need frequent change the maintenance, maintenance personal's work burden has been aggravated, monitoring facilities's daily maintenance, the maintenance cost has been increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art current situation, provide a can effectively avoid optical monitoring element by the monitoring devices of oil smoke particulate matter concentration of oil smoke pollution.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a device for monitoring the concentration of oil smoke particles comprises an optical monitoring element capable of emitting and receiving detection light, the optical monitoring element is arranged beside a flue, it is characterized in that the monitoring device also comprises a measuring pipe fitting which is arranged crosswise with the flue, the measuring pipe fitting is provided with an inner pipe channel along the light path direction of the detecting light, the measuring pipe fitting is also provided with a fume inlet for the fume to enter the channel in the pipe and a sweeping gas inlet for the sweeping gas for sweeping the fume to enter the channel in the pipe, the sweeping gas inlet is arranged between the optical monitoring element and the fume inlet, and is connected with a gas supply source, the purging gas is conveyed in the pipe channel along the direction close to the oil fume inlet, the measuring pipe fitting is also provided with a mixed gas flow outlet for flowing out of sweeping gas and oil smoke in the channel in the pipe, and the oil smoke inlet and the mixed gas flow outlet are sequentially arranged along the flowing direction of the oil smoke in the flue.
Preferably, the optical monitoring element includes an emitting unit capable of emitting detection light and a receiving unit capable of receiving the detection light, the emitting unit and the receiving unit are respectively located at two sides of the flue, and the purge gas inlet includes a first purge gas inlet arranged between the emitting unit and the oil smoke inlet and a second purge gas inlet arranged between the receiving unit and the oil smoke inlet.
Preferably, the optical monitoring element further comprises a first lens for converting the detection light emitted by the emission unit into parallel light and a second lens for converting the parallel light into focused light, wherein the first lens is disposed between the emission unit and the first purge gas inlet, and the second lens is disposed between the receiving unit and the second purge gas inlet.
Preferably, the measuring tube comprises a measuring tube, a transmitting end lens holder for mounting the first lens and a receiving end lens holder for mounting the second lens, wherein the transmitting end lens holder and the receiving end lens holder are respectively arranged at two ends of the measuring tube.
Preferably, a detachable optical filter is arranged in the receiving end lens seat, and the optical filter is arranged between the second lens and the second purge gas inlet.
Preferably, a first air inlet seat is arranged between the transmitting end lens seat and the measuring pipe, a first purging gas inlet is formed in the first air inlet seat, a second air inlet seat is formed between the receiving end lens seat and the measuring pipe, and a second purging gas inlet is formed in the second air inlet seat.
Preferably, the transmitting end lens holder, the receiving end lens holder, the first air inlet holder and the second air inlet holder are internally provided with internal threads for absorbing stray light.
Preferably, the oil smoke inlet and the mixed gas outlet are strip-shaped slotted holes arranged along the length direction of the measuring pipe fitting.
Preferably, the oil fume inlet and the mixed airflow outlet are symmetrically arranged.
Preferably, the monitoring device is further provided with a control unit, and the transmitting unit and the receiving unit are respectively and electrically connected with the control unit.
The beneficial effects of the utility model reside in that:
1) the utility model discloses an intraductal passageway, locate the mixed gas flow outlet who sweeps air inlet and locate the position that the oil smoke entry is located oil smoke flow direction low reaches between oil smoke entry and the optical monitoring component, form "air curtain" between oil smoke and monitoring devices, will sweep the outer flue of intraductal passageway to the oil smoke of optical monitoring component one side diffusion via mixed gas flow outlet, thereby effectively avoid the optical monitoring component to be polluted by the oil smoke, keep the cleanness of optical monitoring component, reduce the maintenance change frequency of optical monitoring component, prolong the life of product.
2) The utility model discloses in, locate the position that the oil smoke entry is located oil smoke flow direction low reaches with the mist outlet, be favorable to keeping the cleanness of intraductal passageway.
Drawings
Fig. 1 is a schematic structural diagram of the monitoring device of the present invention.
Fig. 2 is the working principle diagram of the monitoring device of the present invention.
Fig. 3 is a schematic view of a measuring tube structure.
Fig. 4 is a cross-sectional view of a measurement pipe.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and embodiments:
referring to fig. 1-4, the present invention discloses a device for monitoring the concentration of oil smoke particles, which comprises an optical monitoring element 1 capable of emitting and receiving detection light, the optical monitoring element 1 is disposed beside the flue, the monitoring device further comprises a measuring pipe 2 disposed to intersect with the flue, in this embodiment, the measuring pipe 2 is perpendicular to the flue, the measuring pipe 2 is disposed with an inner channel 21 along the light path of the detection light, the light path of the detection light penetrates the inner channel 21 to monitor the concentration of the oil smoke particles entering the inner channel 21, the measuring pipe 2 is further disposed with an oil smoke inlet 22 for supplying the oil smoke to the inner channel 21 and a purge gas inlet 23 for purging the oil smoke to the inner channel 21, the purge gas inlet 23 is disposed between the optical monitoring element and the oil smoke inlet 22 and connected to a gas supply source (not shown in the figure), in this embodiment, the air supply source is an air compressor or an air blower, clean air is conveyed to the pipe inner channel 21 through the air compressor or the air blower to serve as purge gas, the purge gas is conveyed in the pipe inner channel 21 in a direction close to the oil smoke inlet 22, the measurement pipe fitting 2 is further provided with a mixed gas flow outlet 24 for allowing the purge gas and the oil smoke in the pipe inner channel 21 to flow out, the oil smoke inlet 22 and the mixed gas flow outlet 24 are sequentially arranged in the oil smoke flowing direction in the flue, and the oil smoke inlet 22 and the mixed gas flow outlet 24 are opposite to the oil smoke flowing direction in the flue, so that the oil smoke in the flue can pass through without obstacles, and the accuracy of the measurement result.
During the use of the monitoring device, the oil smoke in the flue enters the pipe channel 21 from the oil smoke inlet 22 and then flows out from the mixed gas outlet 24, meanwhile, the clean air conveyed by the air supply enters the pipe channel 21 through the purging gas inlet 23 and flows to the oil smoke position entering the pipe channel 21, an air curtain is formed between the oil smoke and the monitoring device, and the oil smoke diffused to one side of the optical monitoring element 1 is purged to the flue outside the pipe channel 21 through the mixed gas outlet 24, so that the optical monitoring element 1 is effectively prevented from being polluted by the oil smoke, the cleanness of the optical monitoring element 1 is maintained, the maintenance and replacement frequency of the optical monitoring element 1 is reduced, and the service life of the product is prolonged.
The utility model discloses in, locate mixed gas flow outlet 24 and locate oil smoke entry 22 and be located the position of oil smoke flow direction low reaches, be favorable to keeping the cleanness of intraductal passageway 21, its reason lies in:
if the mixed gas flow outlet is arranged at the downstream of the blowing gas inlet in the gas flow direction, in the operation process, oil smoke enters the pipe channel through the oil smoke inlet, meanwhile, blowing gas enters the pipe channel through the blowing gas inlet, and oil smoke reaching the position nearby along the pipe channel is discharged through the mixed gas flow outlet.
Therefore, the utility model discloses in locate oil smoke entry 22 with mist outlet 24 and be located the position of oil smoke flow direction low reaches, the circulating path of oil smoke in intraductal passageway 21 is extremely short, and not flow through intraductal passageway 21 and be located oil smoke entry 22 and sweep between the gas entry 23 pipeline, avoid intraductal passageway 21 to be polluted by the oil smoke, on the other hand, sweep gas when sweeping the edge that pushes away the oil smoke from mist outlet 24 slightly, further reduced the pollution of oil smoke to mist outlet 24, very big pollution of avoiding oil smoke to intraductal passageway 21, the inner wall that can let intraductal passageway 21 keeps clean for a long time, the life of extension product.
As a specific embodiment of the present invention, the optical monitoring element 1 includes the emitting unit 11 that can emit detection light and the receiving unit 12 that can receive detection light, the emitting unit 11 and the receiving unit 12 are respectively located the flue both sides, the purge gas inlet 23 includes the first purge gas inlet 231 between the emitting unit 11 and the oil smoke inlet 22 and the second purge gas inlet 232 between the receiving unit 12 and the oil smoke inlet 22, the monitoring device is further provided with a control unit, the emitting unit 11 and the receiving unit 12 are respectively connected with the control unit electrically.
Referring to fig. 2, in use, the purging gas is purged from the two sides to the middle of the oil smoke through the first purging gas inlet 231 and the second purging gas inlet 232, and the oil smoke diffused to the two sides is discharged through the mixed gas flow outlet 24, so that air curtains are formed between the oil smoke and the transmitting unit 11 and between the oil smoke and the receiving unit 12, and the whole device is not easily polluted by the oil smoke.
The optical monitoring element 1 further includes a first lens 13 for converting the detection light emitted by the emission unit 11 into parallel light and a second lens 14 for converting the parallel light into focused light, the first lens 13 being provided between the emission unit 11 and the first purge gas inlet 231, and the second lens 14 being provided between the reception unit 12 and the second purge gas inlet 232.
The control unit may be but not limited to an ECU (also called electronic control unit), the ECU is composed of a microprocessor (CPU), a memory (ROM, RAM), an input/output interface (I/O), an analog-to-digital converter (a/D), a driver and other large scale integrated circuits, has the functions of operation and control, and can compare and calculate with signals transmitted from each sensor.
In the monitoring process, the transmitting unit 11 transmits detection light, the detection light is converted into parallel light through the first lens 13, the light energy is attenuated when the parallel light passes through the oil smoke, the parallel light is converted into focused light through the second lens 14, the receiving unit 12 receives the focused light, then the focused light is converted into an electric signal and transmitted to the control unit, and the control unit judges whether the emission of particles in the oil smoke meets the national standard according to the intensity of the electric signal.
As a specific embodiment of the present invention, the measuring tube 2 includes a measuring tube 29, a transmitting end lens holder 25 for mounting the first lens 13 and a receiving end lens holder 26 for mounting the second lens 14, and the two ends of the measuring tube 29 are respectively disposed on the transmitting end lens holder 25 and the receiving end lens holder 26.
As a specific implementation of the utility model, be equipped with detachable light filter 15 in the receiving end lens holder 26, light filter 15 locates between second lens 14 and the second sweeps gas inlet 232, and light filter 15 provides the opacity calibration function, is equipped with in the receiving end lens holder 26 and supplies light filter 15 male slot (not shown in the figure), realizes light filter 15's quick assembly disassembly, change.
As a specific embodiment of the present invention, a first air inlet seat 27 is disposed between the transmitting end lens seat 25 and the measuring tube 29, a first purge gas inlet 231 is disposed on the first air inlet seat 27, a second air inlet seat 28 is disposed between the receiving end lens seat 26 and the measuring tube 29, and a second purge gas inlet 232 is disposed on the second air inlet seat 28.
In this embodiment, the lens holder 25 at the emitting end and the first air inlet 27, and the lens holder 26 at the receiving end and the second air inlet 28 can be fixed and connected to each other by a bolt mounting method or other fixing methods.
As a specific embodiment of the present invention, the transmitting end lens holder 25, the receiving end lens holder 26, the first air inlet 27 and the second air inlet 28 are all provided with an internal thread (not shown in the figure) for absorbing stray light, and stray light is absorbed through the internal thread, so as to eliminate the stray light in the optical path.
Referring to fig. 3, as a specific embodiment of the utility model, oil smoke entry 22 and mixed gas flow outlet 24 are the rectangular form slotted hole that sets up along measuring 2 length direction of pipe fitting, the utility model discloses in, the both sides edge of oil smoke entry 22 and mixed gas flow outlet 24 all is U type structure to enlarge oil smoke entry 22 and mixed gas flow outlet 24's bore, further ensure that the oil smoke in the flue can accessible, guarantee measuring result's accuracy.
As a specific embodiment of the utility model, oil smoke entry 22 and mixed gas flow outlet 24 symmetry set up, further ensure that the oil smoke in the flue can accessible, guarantee measuring result's accuracy.
Of course, the principle and the embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help the method and the core idea of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A device for monitoring the concentration of oil smoke particles comprises an optical monitoring element capable of emitting and receiving detection light, the optical monitoring element is arranged beside a flue, it is characterized in that the monitoring device also comprises a measuring pipe fitting which is arranged crosswise with the flue, the measuring pipe fitting is provided with an inner pipe channel along the light path direction of the detecting light, the measuring pipe fitting is also provided with a fume inlet for the fume to enter the channel in the pipe and a sweeping gas inlet for the sweeping gas for sweeping the fume to enter the channel in the pipe, the sweeping gas inlet is arranged between the optical monitoring element and the fume inlet, and is connected with a gas supply source, the purging gas is conveyed in the pipe channel along the direction close to the oil fume inlet, the measuring pipe fitting is also provided with a mixed gas flow outlet for flowing out of sweeping gas and oil smoke in the channel in the pipe, and the oil smoke inlet and the mixed gas flow outlet are sequentially arranged along the flowing direction of the oil smoke in the flue.
2. The device for monitoring the concentration of soot particles according to claim 1, wherein said optical monitoring element comprises an emitting unit capable of emitting detection light and a receiving unit capable of receiving said detection light, said emitting unit and said receiving unit are respectively located at two sides of the flue, said purge gas inlet comprises a first purge gas inlet located between the emitting unit and the soot inlet and a second purge gas inlet located between the receiving unit and the soot inlet.
3. The soot particulate matter concentration monitoring device according to claim 2, wherein said optical monitoring element further comprises a first lens for converting the detecting light emitted from the emitting unit into parallel light and a second lens for converting the parallel light into focused light, said first lens is disposed between the emitting unit and the first purge gas inlet, and said second lens is disposed between the receiving unit and the second purge gas inlet.
4. The soot particle concentration monitoring device as claimed in claim 3, wherein said measuring tube comprises a measuring tube, a lens holder for receiving a first lens and a lens holder for receiving a second lens, said lens holders being respectively disposed at two ends of said measuring tube.
5. The apparatus according to claim 4, wherein a detachable filter is disposed in the receiving lens holder, and the filter is disposed between the second lens and the second purge gas inlet.
6. The apparatus according to claim 4, wherein a first air inlet seat is disposed between the transmitting lens seat and the measuring tube, a first purge gas inlet is disposed on the first air inlet seat, a second air inlet seat is disposed between the receiving lens seat and the measuring tube, and a second purge gas inlet is disposed on the second air inlet seat.
7. The device for monitoring the concentration of soot particles as claimed in claim 6, wherein the transmitting end lens holder, the receiving end lens holder, the first air inlet holder and the second air inlet holder are internally provided with internal threads for absorbing stray light.
8. The apparatus for monitoring the concentration of soot particles as claimed in any one of claims 1 to 7, wherein said soot inlet and said mixed gas outlet are elongated slots disposed along the length of said measuring tube.
9. The apparatus for monitoring concentration of soot particles as claimed in claim 8, wherein said soot inlet and said mixed gas flow outlet are symmetrically disposed.
10. The device for monitoring the concentration of soot particles as claimed in any one of claims 2 to 7, wherein said device further comprises a control unit, and said transmitting unit and said receiving unit are electrically connected to said control unit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021152578.6U CN211235421U (en) | 2020-06-20 | 2020-06-20 | Monitoring device for concentration of oil smoke particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021152578.6U CN211235421U (en) | 2020-06-20 | 2020-06-20 | Monitoring device for concentration of oil smoke particles |
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| Publication Number | Publication Date |
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| CN211235421U true CN211235421U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021152578.6U Active CN211235421U (en) | 2020-06-20 | 2020-06-20 | Monitoring device for concentration of oil smoke particles |
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| CN (1) | CN211235421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790935A (en) * | 2021-10-14 | 2021-12-14 | 广州正虹环境科技有限公司 | Gas sampling device and oil smoke probe |
-
2020
- 2020-06-20 CN CN202021152578.6U patent/CN211235421U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790935A (en) * | 2021-10-14 | 2021-12-14 | 广州正虹环境科技有限公司 | Gas sampling device and oil smoke probe |
| CN113790935B (en) * | 2021-10-14 | 2024-06-11 | 广州正虹环境科技有限公司 | Oil smoke probe |
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