CN214224875U - Oil smoke concentration detection calibrating device - Google Patents
Oil smoke concentration detection calibrating device Download PDFInfo
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- CN214224875U CN214224875U CN202022994035.5U CN202022994035U CN214224875U CN 214224875 U CN214224875 U CN 214224875U CN 202022994035 U CN202022994035 U CN 202022994035U CN 214224875 U CN214224875 U CN 214224875U
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- oil smoke
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Abstract
The utility model discloses an oil smoke concentration detection calibrating device relates to check out test set technical field. The oil smoke concentration detection and calibration device comprises an annular wind tunnel, an oil smoke generator and a fan, wherein the oil smoke generator and the fan are respectively connected with the annular wind tunnel; and the annular wind tunnel is provided with an oil smoke concentration monitoring module, a standard instrument detection port and an instrument detection port to be calibrated. The utility model discloses, can guarantee to provide a dynamic stable oil smoke environment for the calibration of detecting instrument, guarantee the stability of oil smoke concentration through oil smoke concentration real time monitoring, reduce the influence of external factors such as oil smoke concentration fluctuation to the calibration result, guarantee by the accuracy of calibration instrument calibration result; the calibration method is simple and convenient, and only the oil smoke concentration readings of the instrument to be calibrated are compared with the oil smoke concentration readings of the standard instrument for calibration.
Description
Technical Field
The utility model relates to a check out test set technical field, concretely relates to oil smoke concentration detection calibrating device.
Background
Oil fume pollution in the catering industry becomes one of the important problems of urban environment pollution, and the conventional detection of the oil fume pollution in the catering industry is more and more concerned by various circles. At present, the detection of the oil smoke concentration needs to measure and calibrate a detection instrument before detection.
In the prior art, an instrument measurement calibration method is complex, and generally workers need to remove oil smoke to collect measurement calibration on site, however, in an actual working condition, the oil smoke discharge has the characteristics of uncertainty, discontinuity, concentration instability and the like, and the actual working condition cannot provide a continuous and stable calibration environment, so that the instrument calibration difficulty is large, and the accuracy of a measurement calibration result is poor.
How to solve the technical problem is a technical problem to be solved in the technical field of the current detection equipment.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the embodiment of the utility model provides an oil smoke concentration detection calibrating device to solve the problem that proposes in the above-mentioned background art.
The utility model provides a following technical scheme: a kind of oil smoke concentration measures the calibrating installation, including the annular wind tunnel, oil smoke generator and blower connected with annular wind tunnel separately; and the annular wind tunnel is provided with an oil smoke concentration monitoring module, a standard instrument detection port and an instrument detection port to be calibrated.
Preferably, the annular wind tunnel comprises an oil smoke mixing section, a first U-shaped buffer section, a straight turbulence section, a second U-shaped buffer section and a steady flow section which are connected in sequence, and the oil smoke generator is connected to the oil smoke mixing section.
Preferably, a honeycomb turbulent flow plate is arranged at the end part of the first U-shaped buffer section, and a honeycomb turbulent flow plate is arranged at the end part of the second U-shaped buffer section.
Preferably, the steady flow section is provided with a hygrothermograph, a pressure gauge and a visual window.
Preferably, the oil smoke generator is connected with the annular wind tunnel through a three-way valve, the other interface of the three-way valve is connected with an external discharge pipeline, and a filter is arranged on the external discharge pipeline.
Preferably, the outer discharge pipeline is provided with a pressure sensor.
Preferably, the number of the detection ports of the instrument to be calibrated is 2.
Preferably, the device also comprises a controller, and the oil smoke generator, the fan, the hygrothermograph, the pressure gauge and the oil smoke concentration monitoring module are all electrically connected with the controller.
The embodiment of the utility model provides a pair of oil smoke concentration detection calibrating device has following beneficial effect:
1. the utility model discloses, can guarantee to provide a dynamic stable oil smoke environment for the calibration of detecting instrument, guarantee the stability of oil smoke concentration through oil smoke concentration real time monitoring, reduce the influence of external factors such as oil smoke concentration fluctuation to the calibration result, guarantee by the accuracy of calibration instrument calibration result;
2. the calibration method is simple and convenient, and only the oil smoke concentration readings of the instrument to be calibrated are compared and calibrated with the oil smoke concentration readings of the standard instrument;
3. meanwhile, the calibration method can be operated in a laboratory, a large number of instruments to be calibrated do not need to be carried to an oil smoke collection site by workers for calibration, and the calibration method is simple and convenient.
Drawings
FIG. 1 is a schematic diagram of the oil smoke concentration detection and calibration device of the present invention;
fig. 2 is the utility model discloses oil smoke concentration detection calibrating device schematic structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, the technical personnel in the field can obtain all other embodiments without creative work, which all belong to the protection scope of the present invention.
See fig. 1 and 2.
A kind of oil smoke concentration measures the calibrating installation, including the annular wind tunnel 1, oil smoke generator 2 and blower 3 connected with annular wind tunnel 1 separately; and the annular wind tunnel 1 is provided with an oil smoke concentration monitoring module 20, a standard instrument detection port 15 and an instrument detection port to be calibrated.
It should be noted that, with respect to the airflow circulation direction, the standard instrument detection port 15 and the instrument detection port to be calibrated are both disposed at the rear end of the soot concentration monitoring module 20.
Preferably, fan 3 is centrifugal fan, fan 3 does the utility model provides an air current power supply can provide the amount of wind of 5-45m/s wind speed for annular wind-tunnel 1.
It should be noted that, in order to avoid adsorbing a large amount of oil smoke inside the annular wind tunnel 1, the inside of the annular wind tunnel 1 main body needs to be polished to ensure smoothness as much as possible.
Preferably, the annular wind tunnel 1 comprises an oil smoke mixing section 4, a first U-shaped buffer section 5, a straight turbulence section 6, a second U-shaped buffer section 7 and a steady flow section 8 which are connected in sequence, and the oil smoke generator 2 is connected to the oil smoke mixing section 4.
Preferably, a honeycomb turbulent plate is arranged at the end part of the first U-shaped buffer section 5, and a honeycomb turbulent plate is arranged at the end part of the second U-shaped buffer section 7; in this embodiment, both ends of the first U-shaped buffer section 5 are provided with honeycomb turbulence plates 12, and only one end of the second U-shaped buffer section 7 is provided with a honeycomb turbulence plate 12.
The oil smoke flows and is mixed in the annular wind tunnel 1: the oil smoke generated by the oil smoke generator 2 (the working temperature of the oil smoke generator is set to be 25-550 ℃), is uniformly mixed by the oil smoke mixing section 4 and then enters the first U-shaped buffer section 5, the honeycomb turbulent flow plates 12 are designed at the front end and the rear end of the first U-shaped buffer section 5, and the oil smoke forms turbulent flow in the first U-shaped buffer section 5 so that the oil smoke is fully mixed again; the oil smoke fully mixed by the first U-shaped buffer section 5 enters a straight turbulence section 6 and a second U-shaped buffer section 7, one end of the second U-shaped buffer section 7 is provided with 12 honeycomb turbulence plates, the oil smoke is fully mixed again, and finally the mixed oil smoke enters a steady flow section 8.
Preferably, the honeycomb turbulent flow plate 12 is designed into an inserting type, so that the honeycomb turbulent flow plate is convenient to disassemble and clean; the honeycomb turbulent flow plate is made of inert materials such as polytetrafluoroethylene and the like, so that chemical reaction with oil smoke at high temperature is avoided.
Preferably, 3 oil smoke concentration real-time monitoring modules 20 are designed at the position, which is far away from an inlet 1/3 of the steady flow section 8, and the 3 oil smoke concentration real-time monitoring modules 20 are distributed on the same cross section at equal angles and equal intervals; preferably, the oil smoke concentration real-time monitoring module 20 is an oil smoke monitoring sensor.
Preferably, the steady flow section 8 is provided with a hygrothermograph 13, a pressure gauge 14 and a visual window 9; the temperature and humidity meter 13 and the pressure meter 14 are arranged to determine oil smoke parameters; through setting up visual window 9, make things convenient for operating personnel to observe detecting instrument sample connection position.
Preferably, the oil smoke generator 2 is connected with the annular wind tunnel 1 through a three-way valve 10, the other interface of the three-way valve 10 is connected with an external discharge pipeline 19, and a filter 11 is arranged on the external discharge pipeline 19.
By arranging the three-way valve 10, the three-way valve 10 is communicated with the annular wind tunnel 1 when oil smoke is needed; when the oil smoke is not needed, the three-way valve 10 is communicated with the external discharge pipeline 19 and is discharged after being purified by the filter 11.
Preferably, the outer discharge pipe 19 is provided with a pressure sensor 18, and when the pressure of the outer discharge pipe 19 is too high, pressure data displayed by the pressure sensor 18 can remind an operator to replace the filter 11.
Preferably, the filter 11 is designed as a plug-in type, which facilitates regular replacement.
Preferably, in this embodiment, there are 2 detection ports of the instrument to be calibrated, which are the first detection port 16 of the instrument to be calibrated and the second detection port 17 of the instrument to be calibrated, respectively.
Preferably, the system also comprises a controller, wherein the controller is a PLC control module or a single chip microcomputer and the like, and the oil smoke generator 2, the fan 3, the hygrothermograph 13, the pressure gauge 14 and the oil smoke concentration monitoring module 20 are all electrically connected with the controller; through setting up the controller, realize the utility model discloses automatic control.
The utility model relates to an oil smoke concentration detection calibrating device theory of use as follows:
1. the standard instrument detection port 15 is connected with the accurately calibrated standard instrument, the instrument to be calibrated is connected with the instrument to be calibrated, and then the oil smoke generator 2 starts to work;
2. the oil smoke generated by the oil smoke generator 2 is brought into the oil smoke mixing section 4 to be mixed with the air flow in the annular wind tunnel, the oil smoke passes through the oil smoke mixing section 4, the first U-shaped buffer section 5, the straight turbulence section 6 and the second U-shaped buffer section 7 to be mixed for three times, the oil smoke is guaranteed to be uniformly mixed, and the oil smoke is monitored and determined through the oil smoke concentration monitoring module 20;
3. after the oil smoke concentration is stable, comparing the oil smoke concentration readings of the instrument to be calibrated with the oil smoke concentration readings of the standard instrument, and adjusting the oil smoke concentration readings of the instrument to be calibrated to be the same as the oil smoke concentration readings of the standard instrument, namely, completing calibration.
In this embodiment, the standard instrument is preferably a light scattering method lampblack detector, and the specific parameters are as follows:
oil smoke concentration: measurement range (0-30) mg/m3Resolution 0.01mg/m3Maximum allowable error of +/-10%
Sampling flow rate: the range is 1.0L/min, the resolution is 0.01L/min, and the maximum allowable error is +/-2.5 percent
Flue gas flow rate: (1-45) m/s, resolution 0.1m/s, maximum allowable error. + -. 4%
Dynamic pressure of flue gas: (0-2000) Pa, resolution 1Pa, maximum allowable error. + -. 2%
Flue gas static pressure: (-30- +30) kPa, resolution 0.01kPa, maximum allowable error. + -. 2%
Flue gas temperature: (-40-125) deg.C, resolution 0.1 deg.C, maximum allowable error + -2%
Moisture content: (0-40)% VOL, resolution 0.01%, maximum allowable error + -2% VOL
It should be noted that the utility model discloses use light scattering method oil smoke detector as the etalon, can be used for calibrating the relevant detecting instrument such as light scattering method, infrared spectrophotometry, gas detection tube method and the non-dispersion infrared method of oil smoke concentration detection.
The embodiment of the utility model provides a pair of oil smoke concentration detection calibrating device has following beneficial effect: the utility model discloses, can guarantee to provide a dynamic stable oil smoke environment for the calibration of detecting instrument, guarantee the stability of oil smoke concentration through oil smoke concentration real time monitoring, reduce the influence of external factors such as oil smoke concentration fluctuation to the calibration result, guarantee by the accuracy of calibration instrument calibration result; the calibration method is simple and convenient, and only the oil smoke concentration readings of the instrument to be calibrated are compared and calibrated with the oil smoke concentration readings of the standard instrument; meanwhile, the calibration method can be operated in a laboratory, a large number of instruments to be calibrated do not need to be carried to an oil smoke collection site by workers for calibration, and the calibration method is simple and convenient.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept, and all such alterations and modifications shall fall within the scope of the appended claims.
Claims (8)
1. A lampblack concentration detection and calibration device is characterized by comprising an annular wind tunnel (1), a lampblack generator (2) and a fan (3), wherein the lampblack generator and the fan are respectively connected with the annular wind tunnel (1); and the annular wind tunnel (1) is provided with an oil smoke concentration monitoring module (20), a standard instrument detection port (15) and an instrument detection port to be calibrated.
2. The lampblack concentration detection and calibration device according to claim 1, characterized in that the annular wind tunnel (1) comprises a lampblack mixing section (4), a first U-shaped buffer section (5), a straight turbulent flow section (6), a second U-shaped buffer section (7) and a steady flow section (8) which are sequentially connected, and the lampblack generator (2) is connected to the lampblack mixing section (4).
3. The lampblack concentration detection and calibration device according to claim 2, wherein a honeycomb turbulence plate is arranged at the end of the first U-shaped buffer section (5), and a honeycomb turbulence plate is arranged at the end of the second U-shaped buffer section (7).
4. The lampblack concentration detection and calibration device as claimed in claim 2, characterized in that a hygrothermograph (13), a pressure gauge (14) and a visual window (9) are arranged on the steady flow section (8).
5. The lampblack concentration detection and calibration device according to claim 1, characterized in that the lampblack generator (2) is connected with the annular wind tunnel (1) through a three-way valve (10), the other port of the three-way valve (10) is connected with an external discharge pipeline (19), and a filter (11) is arranged on the external discharge pipeline (19).
6. The lampblack concentration detection and calibration device according to claim 5, characterized in that a pressure sensor (18) is arranged on the outer discharge pipe (19).
7. The lampblack concentration detection and calibration device according to claim 1, wherein 2 detection ports of the instrument to be calibrated are provided.
8. The lampblack concentration detection and calibration device according to claim 4, characterized by further comprising a controller, wherein the lampblack generator (2), the fan (3), the hygrothermograph (13), the pressure gauge (14) and the lampblack concentration monitoring module (20) are all electrically connected with the controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022994035.5U CN214224875U (en) | 2020-12-14 | 2020-12-14 | Oil smoke concentration detection calibrating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022994035.5U CN214224875U (en) | 2020-12-14 | 2020-12-14 | Oil smoke concentration detection calibrating device |
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| CN214224875U true CN214224875U (en) | 2021-09-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166710A (en) * | 2021-12-16 | 2022-03-11 | 北京市计量检测科学研究院 | Intelligent detection device for catering oil fume purification equipment and oil fume concentration measuring instrument |
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2020
- 2020-12-14 CN CN202022994035.5U patent/CN214224875U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166710A (en) * | 2021-12-16 | 2022-03-11 | 北京市计量检测科学研究院 | Intelligent detection device for catering oil fume purification equipment and oil fume concentration measuring instrument |
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