CN113758842A - Oil smoke particulate matter detection device with heating function and detection method thereof - Google Patents
Oil smoke particulate matter detection device with heating function and detection method thereof Download PDFInfo
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- CN113758842A CN113758842A CN202110617291.9A CN202110617291A CN113758842A CN 113758842 A CN113758842 A CN 113758842A CN 202110617291 A CN202110617291 A CN 202110617291A CN 113758842 A CN113758842 A CN 113758842A
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- 238000001514 detection method Methods 0.000 title claims abstract description 233
- 239000000779 smoke Substances 0.000 title claims abstract description 120
- 239000013618 particulate matter Substances 0.000 title claims abstract description 45
- 238000010438 heat treatment Methods 0.000 title claims abstract description 43
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 164
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 82
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 82
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 81
- 239000002245 particle Substances 0.000 claims abstract description 79
- 238000005070 sampling Methods 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 239000006233 lamp black Substances 0.000 claims description 26
- 238000001914 filtration Methods 0.000 claims description 20
- 230000006870 function Effects 0.000 claims description 17
- 238000004321 preservation Methods 0.000 claims description 17
- 230000035807 sensation Effects 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 3
- 238000012538 light obscuration Methods 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 15
- 239000003517 fume Substances 0.000 description 7
- 230000008033 biological extinction Effects 0.000 description 5
- 238000005086 pumping Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/075—Investigating concentration of particle suspensions by optical means
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Abstract
The invention discloses an oil smoke particulate matter detection device with a heating function and a detection method thereof, and the device comprises an oil smoke particulate matter detection unit, a non-methane total hydrocarbon detection unit, an air suction pump, an air filter, a single chip microcomputer module, a transmission module, a power supply control module and a variable voltage module, wherein an air inlet of the oil smoke particulate matter detection unit is connected with a sampling head connecting pipe, an air outlet of the oil smoke particulate matter detection unit is connected with an air inlet of the air filter, an air outlet of the air filter is connected with an air inlet of the non-methane total hydrocarbon detection unit, an air outlet of the non-methane total hydrocarbon detection unit is connected with the air suction pump, the oil smoke particulate matter detection unit, the air filter and the non-methane total hydrocarbon detection unit are positioned on the same straight line, and the sampling head connecting pipe is connected with the heating unit. The invention can make the detection cavity volume of the two detection units very small, the detection cavity can be well installed in the chassis together with other parts, the structure is compact, the operation is convenient, and the detection precision of non-methane total hydrocarbon and oil smoke particles is ensured.
Description
Technical Field
The invention relates to a part of oil smoke detection equipment, in particular to an oil smoke particle detection device with a heating function and a detection method thereof.
Background
The oil fume detection device is generally used for detecting indexes of oil fume, particulate matters and non-methane total hydrocarbons in the oil fume; generally, an oil smoke particle detection unit is adopted to detect an oil smoke concentration index and a particle concentration index, and a non-methane total hydrocarbon detection unit is adopted to detect a non-methane total hydrocarbon concentration index; at present, a conventional oil fume detection device usually installs an oil fume particle detection unit and a non-methane total hydrocarbon detection unit in the same detection cavity, so that the volume of the detection cavity is large, and a large installation space is needed for installation, so that the detection cavity and other parts (such as a power supply control module, a variable voltage module, an air pump and the like) are difficult to install in a machine box of the oil fume detection device at the same time, the power supply control module, the variable voltage module and an integral control module are often installed on a cabinet door together, the cabinet door is heavy in structure and inconvenient to open and close, and the control stability is influenced; the air pump and the inflator pump are arranged externally or far away from the detection cavity, so that air pumping and inflating effects are influenced.
Disclosure of Invention
In order to solve the defects and shortcomings in the prior art, the invention provides the lampblack particle detection device with the heating function and the detection method thereof, wherein the lampblack particle detection unit and the non-methane total hydrocarbon detection unit are separately arranged and connected through a pipeline, the detection cavity volumes of the two detection units can be made to be small, so that the detection cavity can be well installed in a machine case together with other parts, the structure is compact, the operation is convenient, the control stability is high, an air filter is arranged between the two detection units to further ensure the detection precision of the non-methane total hydrocarbon, and meanwhile, the heating unit and the heat preservation cavity matched with the lampblack particle detection unit are arranged to prevent the influence of water vapor on the detection precision during the detection of lampblack particles, and further ensure the detection precision of the lampblack particles.
The technical scheme of the invention is as follows: an oil smoke particulate matter detection device with a heating function comprises an oil smoke particulate matter detection unit, a non-methane total hydrocarbon detection unit and an air pump, an air filter connected between the oil smoke particulate matter detection unit and the non-methane total hydrocarbon detection unit, a single chip microcomputer module for storage and control, a transmission module for signal transmission, a power supply control module for power supply and a variable voltage module, a sampling head connecting pipe is connected with an air inlet of the oil smoke particulate matter detection unit, an air inlet of the air filter is connected with an air outlet of the oil smoke particulate matter detection unit through a filtering air inlet pipe, an air inlet of the non-methane total hydrocarbon detection unit is connected with an air outlet of the air filter through a filtering air pipe, the air outlet of the non-methane total hydrocarbon detection unit is connected with the air pump through an air exhaust pipe, the oil smoke particulate matter detection unit, the air filter and the non-methane total hydrocarbon detection unit are positioned on the same straight line, the sampling head connecting pipe is divided into an upper connecting pipe and a lower connecting pipe, the upper end of the upper connecting pipe is connected with an air inlet of the oil smoke particle detection unit, a heating unit is connected between the lower end of the upper connecting pipe and the upper end of the lower connecting pipe, the outer sides of the oil smoke particle detection unit and the heating unit are provided with a heat preservation cavity, and a temperature display and control module matched with the heating unit is arranged on the heat preservation cavity.
The oil smoke particle detection unit and the non-methane total hydrocarbon detection unit are separately arranged and connected through the pipeline, the volume of the detection cavities of the two detection units can be very small, so that the detection cavities can be well installed in a case together with other parts, the structure is compact, the operation is convenient, the control stability is high, an air filter is arranged between the two detection units, the detection precision of the non-methane total hydrocarbon is further ensured, and meanwhile, the heating unit and the heat preservation cavity matched with the oil smoke particle detection unit are arranged, so that the influence of water vapor on the detection precision during the detection of the oil smoke particles is prevented, and the detection precision of the oil smoke particles is further ensured.
Preferably, an inflator pump for charging fresh and pollution-free air is arranged beside the air pump, the inflator pump is fixed in the case through an inflator pump fixing frame, and the air pump is fixed in the case through the air pump fixing frame.
The inflator pump is used for filling fresh pollution-free air, and gas films are formed on the surfaces of the laser emitter, the light sensing module and the non-methane total hydrocarbon detection module, so that the parts are prevented from being polluted by oil smoke gas; and simultaneously, the air pump and the inflator pump are ensured to be firmly and reliably installed.
Preferably, the lampblack particle detection unit comprises a lampblack particle detection cavity, a laser emitter arranged on one side of the lampblack particle detection cavity, an extinction device arranged on the other side of the lampblack particle detection cavity and a light sensing module arranged in the middle of the lampblack particle detection cavity, and the laser emitter, the light sensing module and the extinction device are positioned on the same straight line; the air inlet of the oil smoke particulate matter detection cavity, the light sensation module and the air outlet of the oil smoke particulate matter detection cavity are located on the same straight line, and the connecting line of the laser transmitter and the optical attenuator is mutually perpendicular to the connecting line of the air inlet of the oil smoke particulate matter detection cavity and the air outlet of the oil smoke particulate matter detection cavity.
This kind of structure makes the small in size in oil smoke particulate matter detection chamber among the oil smoke particulate matter detecting element, ensures its detection precision height to the oil smoke particulate matter simultaneously.
Preferably, the air inlet of the oil smoke particulate matter detection cavity is provided with a first lower built-in pipeline joint matched with the upper end of the sampling head connecting pipe, and the air outlet of the oil smoke particulate matter detection cavity is provided with a first upper built-in pipeline joint matched with the lower end of the filtering air inlet pipe.
The structure ensures the firmness of the connection between the air inlet and the air outlet of the oil smoke particle detection cavity and the pipeline, and ensures the stability and the reliability of air inlet and air outlet.
Preferably, the non-methane total hydrocarbon detection unit comprises a non-methane total hydrocarbon detection cavity and a non-methane total hydrocarbon detection module arranged in the middle of the non-methane total hydrocarbon detection cavity, and an air inlet of the non-methane total hydrocarbon detection cavity, an air outlet of the non-methane total hydrocarbon detection module and an air outlet of the non-methane total hydrocarbon detection cavity are positioned on the same straight line.
The structure enables the volume of the non-methane total hydrocarbon detection cavity in the non-methane total hydrocarbon detection unit to be small and exquisite, and meanwhile, the detection accuracy of the non-methane total hydrocarbon detection unit to the non-methane total hydrocarbon is high.
Preferably, a second lower built-in pipeline joint matched with the upper end of the filtering air outlet pipe is arranged at an air inlet of the non-methane total hydrocarbon detection cavity, and a second upper built-in pipeline joint matched with one end of the air exhaust pipe is arranged at an air outlet of the non-methane total hydrocarbon detection cavity.
The structure ensures the firmness of the connection between the gas inlet and the gas outlet of the non-methane total hydrocarbon detection cavity and the pipeline, and ensures the stability and the reliability of gas inlet and gas outlet.
Preferably, a lower external pipeline joint matched with the upper end of the filtering air inlet pipe is arranged on an air inlet of the air filter, an upper external pipeline joint matched with the lower end of the filtering air outlet pipe is arranged on an air outlet of the air filter, and an air exhaust pipe joint matched with the other end of the air exhaust pipe is arranged on an air inlet of the air exhaust pump.
The structure ensures the firmness of the connection between the air inlet and the air outlet of the air filter and the pipeline, ensures the stability and the reliability of air inlet and air outlet, and simultaneously ensures the air extraction stability and the reliability of the air extraction pump.
Preferably, a third lower built-in pipeline joint matched with the upper end of the lower connecting pipe is arranged at the air inlet of the heating unit, and a third upper built-in pipeline joint matched with the lower end of the upper connecting pipe is arranged at the air outlet of the heating unit.
The structure ensures the firmness of the connection between the air inlet and the air outlet of the heating unit and the pipeline, and ensures the stability and the reliability of air inlet and air outlet.
Preferably, the outer diameters of the lampblack particle detection cavity and the non-methane total hydrocarbon detection cavity are both 48mm, and the heights of the lampblack particle detection cavity and the non-methane total hydrocarbon detection cavity are both 38 mm.
The structure makes the volume of the device smaller and the occupied space for installation small.
A detection method of an oil smoke particulate matter detection device with a heating function comprises the following steps: under the control of the singlechip module, the air pump acts, oil smoke gas obtained by sampling from the oil smoke pipeline by the sampling head enters the oil smoke particle detection cavity from the sampling head connecting pipe, and the oil smoke concentration and the particle concentration are detected through the matching of the laser transmitter, the deluster and the light sensation module; after the detection of oil smoke particulate matters is finished, oil smoke enters an air filter to filter oil and particulate matters, filtered gas enters a non-methane total hydrocarbon detection cavity, the concentration of the non-methane total hydrocarbon is detected through a non-methane total hydrocarbon detection module, the detected gas is discharged through an air pump, and detected oil smoke particulate matter signals are stored in a single chip microcomputer module and displayed on a display interface in real time or transmitted to a remote computer through a transmission module; the oil smoke is heated by the heating unit before entering the oil smoke particle detection cavity, and is continuously supplied with oil smoke through the heat preservation cavity for heat preservation.
The oil smoke particle detection unit and the non-methane total hydrocarbon detection unit are separately arranged and connected through the pipeline, the volume of the detection cavities of the two detection units can be very small, so that the detection cavities can be well installed in a case together with other parts, the structure is compact, the operation is convenient, the control stability is high, an air filter is arranged between the two detection units, the detection precision of the non-methane total hydrocarbon is further ensured, and meanwhile, the heating unit and the heat preservation cavity matched with the oil smoke particle detection unit are arranged, so that the influence of water vapor on the detection precision during the detection of the oil smoke particles is prevented, and the detection precision of the oil smoke particles is further ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a control block diagram of the present invention;
in the figure, 1, a lampblack particle detection cavity, 2, a laser transmitter, 3, a deluster, 4, a light sensing module, 5, an air filter, 6, a non-methane total hydrocarbon detection cavity, 7, a non-methane total hydrocarbon detection module, 8, an air pump, 9, an upper connecting pipe, 10, an air pumping pipe, 11, a filtering air inlet pipe, 12, a filtering air outlet pipe, 13, a first lower built-in pipeline joint, 14, a first upper built-in pipeline joint, 15, a second lower built-in pipeline joint, 16, a second upper built-in pipeline joint, 17, a lower external pipeline joint, 18, an upper external pipeline joint, 19, an air pumping pipe joint, 20, 21, a third lower built-in pipeline joint, 22, a third upper built-in pipeline joint, 23, a lower connecting pipe, 24, a heating unit, 25, 26, an air pump fixing frame and 27, an air pump fixing frame are arranged.
Detailed Description
The present invention will be described in further detail with reference to the attached drawings, but the present invention is not limited thereto.
As shown in figures 1 and 2, a lampblack particle detection device with a heating function comprises a lampblack particle detection unit, a non-methane total hydrocarbon detection unit and an air pump 8, an air filter 5 connected between the lampblack particle detection unit and the non-methane total hydrocarbon detection unit, a single chip microcomputer module for storage and control, a transmission module for signal transmission, a power supply control module for power supply and a variable voltage module, wherein an air inlet of the lampblack particle detection unit is connected with a sampling head connecting pipe, an air outlet of the lampblack particle detection unit is connected with an air inlet of the air filter 5 through a filtering air inlet pipe 11, an air outlet of the air filter 5 is connected with an air inlet of the non-methane total hydrocarbon detection unit through a filtering air outlet pipe 12, an air outlet of the non-methane total hydrocarbon detection unit is connected with the air pump 8 through an air exhaust pipe 10, and the lampblack particle detection unit, the air filter 5 and the non-methane total hydrocarbon detection unit are positioned on the same straight line, sampling head connecting pipe divide into connecting pipe 9 and connecting pipe 23 down, and the air inlet of oil smoke particulate matter detecting element is connected to the upper end of going up connecting pipe 9, goes up and is connected with heating element 24 between the lower extreme of connecting pipe 9 and the upper end of connecting pipe 23 down, and oil smoke particulate matter detecting element and heating element 24's the outside are equipped with heat preservation chamber 25, are equipped with the temperature display and the control module of cooperation heating element 24 on the heat preservation chamber 25. An inflator pump 20 for charging fresh pollution-free air is arranged beside the air pump 8, the inflator pump 20 is fixed in the case through an inflator pump fixing frame 26, and the air pump 8 is fixed in the case through an air pump fixing frame 27. The oil smoke particulate matter detection unit comprises an oil smoke particulate matter detection cavity 1, a laser emitter 2 arranged on one side of the oil smoke particulate matter detection cavity 1, an extinction device 3 arranged on the other side of the oil smoke particulate matter detection cavity 1 and a light sensing module 4 arranged in the middle of the oil smoke particulate matter detection cavity 1, wherein the laser emitter 2, the light sensing module 4 and the extinction device 3 are positioned on the same straight line; the air inlet of the oil smoke particle detection cavity 1, the light sensation module 4 and the air outlet of the oil smoke particle detection cavity 1 are positioned on the same straight line, and the connecting line of the laser emitter 2 and the light extinction device 3 is mutually vertical to the connecting line of the air inlet of the oil smoke particle detection cavity 1 and the air outlet of the oil smoke particle detection cavity 1. The air inlet of oil smoke particulate matter detection chamber 1 is equipped with the first built-in pipe joint 13 that puts down of cooperation sampling head connecting pipe upper end, and the air outlet of oil smoke particulate matter detection chamber 1 is equipped with the first built-in pipe joint 14 that puts up of cooperation filtration intake pipe 11 lower extreme. The non-methane total hydrocarbon detection unit comprises a non-methane total hydrocarbon detection cavity 6 and a non-methane total hydrocarbon detection module 7 arranged in the middle of the non-methane total hydrocarbon detection cavity 6, wherein an air inlet of the non-methane total hydrocarbon detection cavity 6, the non-methane total hydrocarbon detection module 7 and an air outlet of the non-methane total hydrocarbon detection cavity 6 are positioned on the same straight line. A second lower built-in pipeline joint 15 matched with the upper end of the filtering air outlet pipe 12 is arranged at the air inlet of the non-methane total hydrocarbon detection cavity 6, and a second upper built-in pipeline joint 16 matched with one end of the air exhaust pipe 10 is arranged at the air outlet of the non-methane total hydrocarbon detection cavity 6. The air inlet of the air filter 5 is provided with a lower external pipeline joint 17 matched with the upper end of the filtering air inlet pipe 11, the air outlet of the air filter 5 is provided with an upper external pipeline joint 18 matched with the lower end of the filtering air outlet pipe 12, and the air inlet of the air pump 8 is provided with an external air pump pipe joint 19 matched with the other end of the air pumping pipe 10. A third lower built-in pipe joint 21 matched with the upper end of the lower connecting pipe 23 is arranged at the air inlet of the heating unit 24, and a third upper built-in pipe joint 22 matched with the lower end of the upper connecting pipe 9 is arranged at the air outlet of the heating unit 24. The outer diameters of the oil smoke particle detection cavity 1 and the non-methane total hydrocarbon detection cavity 6 are both 48mm, and the heights of the oil smoke particle detection cavity 1 and the non-methane total hydrocarbon detection cavity 6 are both 38 mm.
A detection method of an oil smoke particulate matter detection device with a heating function comprises the following steps: under the control of the singlechip module, the air pump acts, oil smoke gas obtained by sampling from the oil smoke pipeline by the sampling head enters the oil smoke particle detection cavity from the sampling head connecting pipe, and the oil smoke concentration and the particle concentration are detected through the matching of the laser transmitter, the deluster and the light sensation module; after the detection of oil smoke particulate matters is finished, oil smoke enters an air filter to filter oil and particulate matters, filtered gas enters a non-methane total hydrocarbon detection cavity, the concentration of the non-methane total hydrocarbon is detected through a non-methane total hydrocarbon detection module, the detected gas is discharged through an air pump, and detected oil smoke particulate matter signals are stored in a single chip microcomputer module and displayed on a display interface in real time or transmitted to a remote computer through a transmission module; the oil smoke is heated by the heating unit before entering the oil smoke particle detection cavity, and is continuously supplied with oil smoke through the heat preservation cavity for heat preservation.
The detection principle of detecting the oil smoke particles is similar to the conventional detection principle, and the specific detection principle is as follows: the oil smoke gas enters a channel of the oil smoke particle detection cavity, red laser emitted by the laser emitter irradiates the oil smoke gas, reflected light passes through the cross channel and is transmitted to the light sensing module, and the light sensing module performs signal conversion (converting light signals into electric signals) and analysis to obtain the concentration of the oil smoke particles in the detected oil smoke gas; meanwhile, the red laser passing through the oil fume is absorbed and eliminated by the extinction device, so that the reflection of the red laser is prevented from influencing the detection precision.
The oil smoke particle detection unit and the non-methane total hydrocarbon detection unit are separately arranged and connected through the pipeline, the volume of the detection cavities of the two detection units can be very small, so that the detection cavities can be well installed in a case together with other parts, the structure is compact, the operation is convenient, the control stability is high, an air filter is arranged between the two detection units, the detection precision of the non-methane total hydrocarbon is further ensured, and meanwhile, the heating unit and the heat preservation cavity matched with the oil smoke particle detection unit are arranged, so that the influence of water vapor on the detection precision during the detection of the oil smoke particles is prevented, and the detection precision of the oil smoke particles is further ensured.
Claims (10)
1. The utility model provides a take oil smoke particulate matter detection device of heating function which characterized in that: the device comprises an oil smoke particle detection unit, a non-methane total hydrocarbon detection unit and an air pump, an air filter connected between the oil smoke particle detection unit and the non-methane total hydrocarbon detection unit, a single chip microcomputer module for storage and control, a transmission module for signal transmission, a power supply control module for power supply and a variable voltage module, wherein an air inlet of the oil smoke particle detection unit is connected with a sampling head connecting pipe, an air outlet of the oil smoke particle detection unit is connected with an air inlet of the air filter through a filtering air inlet pipe, an air outlet of the air filter is connected with an air inlet of the non-methane total hydrocarbon detection unit through a filtering air pipe, an air outlet of the non-methane total hydrocarbon detection unit is connected with the air pump through an air pump pipe, the oil smoke particle detection unit, the air filter and the non-methane total hydrocarbon detection unit are positioned on the same straight line, and the sampling head connecting pipe is divided into an upper connecting pipe and a lower connecting pipe, the oil smoke particle detection device comprises an upper connecting pipe, an oil smoke particle detection unit, a heating unit, a heat preservation cavity and a temperature display and control module, wherein the upper end of the upper connecting pipe is connected with an air inlet of the oil smoke particle detection unit, the heating unit is connected between the lower end of the upper connecting pipe and the upper end of the lower connecting pipe, and the heat preservation cavity is provided with the heat preservation cavity.
2. The lampblack particle detection device with the heating function according to claim 1, characterized in that: an inflator pump for filling fresh pollution-free air is arranged beside the air pump, the inflator pump is fixed in the case through an inflator pump fixing frame, and the air pump is fixed in the case through the air pump fixing frame.
3. The lampblack particle detection device with the heating function according to claim 1, characterized in that: the oil smoke particle detection unit comprises an oil smoke particle detection cavity, a laser transmitter arranged on one side of the oil smoke particle detection cavity, a light extinction device arranged on the other side of the oil smoke particle detection cavity and a light sensation module arranged in the middle of the oil smoke particle detection cavity, wherein the laser transmitter, the light sensation module and the light extinction device are positioned on the same straight line; the air inlet of the oil smoke particulate matter detection cavity, the light sensation module and the air outlet of the oil smoke particulate matter detection cavity are located on the same straight line, and the connecting line of the laser transmitter and the optical attenuator is mutually perpendicular to the connecting line of the air inlet of the oil smoke particulate matter detection cavity and the air outlet of the oil smoke particulate matter detection cavity.
4. The oil smoke particulate matter detection device of area heating function of claim 3, its characterized in that: the air inlet of oil smoke particulate matter detection chamber department is equipped with the first built-in pipe joint under of cooperation sampling head connecting pipe upper end, and the air outlet department in oil smoke particulate matter detection chamber is equipped with the first built-in pipe joint on the cooperation filtration intake pipe lower extreme.
5. The oil smoke particulate matter detection device of area heating function of claim 3, its characterized in that: the non-methane total hydrocarbon detection unit comprises a non-methane total hydrocarbon detection cavity and a non-methane total hydrocarbon detection module arranged in the middle of the non-methane total hydrocarbon detection cavity, wherein an air inlet of the non-methane total hydrocarbon detection cavity, the non-methane total hydrocarbon detection module and an air outlet of the non-methane total hydrocarbon detection cavity are positioned on the same straight line.
6. The lampblack particle detection device with the heating function according to claim 5, characterized in that: the gas inlet of the non-methane total hydrocarbon detection cavity is provided with a second lower built-in pipeline joint matched with the upper end of the filtering gas outlet pipe, and the gas outlet of the non-methane total hydrocarbon detection cavity is provided with a second upper built-in pipeline joint matched with one end of the gas extraction pipe.
7. The lampblack particle detection device with the heating function according to claim 6, characterized in that: the air inlet of the air filter is provided with a lower external pipeline joint matched with the upper end of the filtering air inlet pipe, the air outlet of the air filter is provided with an upper external pipeline joint matched with the lower end of the filtering air outlet pipe, and the air inlet of the air pump is provided with an external air exhaust pipe joint matched with the other end of the air exhaust pipe.
8. The lampblack particle detection device with the heating function according to claim 1, characterized in that: the air inlet of the heating unit is provided with a third lower built-in pipeline joint matched with the upper end of the lower connecting pipe, and the air outlet of the heating unit is provided with a third upper built-in pipeline joint matched with the lower end of the upper connecting pipe.
9. The lampblack particle detection device with the heating function according to claim 5, characterized in that: the outer diameters of the oil smoke particle detection cavity and the non-methane total hydrocarbon detection cavity are both 48mm, and the heights of the oil smoke particle detection cavity and the non-methane total hydrocarbon detection cavity are both 38 mm.
10. A detection method of the lampblack particle detection device with the heating function as claimed in claim 1, characterized in that: the method comprises the following steps: under the control of the singlechip module, the air pump acts, oil smoke gas obtained by sampling from the oil smoke pipeline by the sampling head enters the oil smoke particle detection cavity from the sampling head connecting pipe, and the oil smoke concentration and the particle concentration are detected through the matching of the laser transmitter, the deluster and the light sensation module; after the detection of oil smoke particulate matters is finished, oil smoke enters an air filter to filter oil and particulate matters, filtered gas enters a non-methane total hydrocarbon detection cavity, the concentration of the non-methane total hydrocarbon is detected through a non-methane total hydrocarbon detection module, the detected gas is discharged through an air pump, and detected oil smoke particulate matter signals are stored in a single chip microcomputer module and displayed on a display interface in real time or transmitted to a remote computer through a transmission module; the oil smoke is heated by the heating unit before entering the oil smoke particle detection cavity, and is continuously supplied with oil smoke through the heat preservation cavity for heat preservation.
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| CN202110617291.9A CN113758842A (en) | 2021-06-03 | 2021-06-03 | Oil smoke particulate matter detection device with heating function and detection method thereof |
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| CN202110617291.9A CN113758842A (en) | 2021-06-03 | 2021-06-03 | Oil smoke particulate matter detection device with heating function and detection method thereof |
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| CN214749617U (en) * | 2021-06-03 | 2021-11-16 | 杭州明瑞智能检测科技有限公司 | Oil smoke particulate matter detection device with heating function |
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