CN116380740A - Waste gas concentration detection mechanism and use method thereof - Google Patents
Waste gas concentration detection mechanism and use method thereof Download PDFInfo
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- CN116380740A CN116380740A CN202310546264.6A CN202310546264A CN116380740A CN 116380740 A CN116380740 A CN 116380740A CN 202310546264 A CN202310546264 A CN 202310546264A CN 116380740 A CN116380740 A CN 116380740A
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Abstract
The application discloses an exhaust gas concentration detection mechanism and a use method thereof, and relates to the field of exhaust gas detection equipment, and the mechanism comprises a photoelectric measurement assembly, an inductance measurement assembly and an air inlet cylinder, wherein a photoelectric sensor, a temperature sensor and an air velocity sensor which are electrically connected with a controller are integrated on the inner side of the electric measurement assembly, a diameter-variable cylinder connected with a diameter-adjusting structure is sleeved in the air inlet cylinder, and the inductance measurement assembly is arranged at the tail part of the photoelectric measurement assembly; the technical advantages of the application are: the photoelectric measurement assembly and the inductance measurement assembly are combined to realize accurate detection of waste gas with different particulate matters; the diameter-variable cylinder and the filter screen are additionally arranged, so that the outer layer of the waste gas forms stable curtain-shaped airflow, and the direct contact between the waste gas and the measuring end part of the sensor is avoided; through setting up the reducing section of thick bamboo, realized adjusting curtain form air current's runner size according to the exhaust gas velocity of flow difference, and then make curtain form air current remain in stable state all the time, the adaptability problem that the reducing produced to annular filter screen has also been solved simultaneously.
Description
Technical Field
The present disclosure relates to the field of exhaust gas detection devices, and in particular, to an exhaust gas concentration detection mechanism and a method for using the same.
Background
The particle size of the atmospheric particulates ranges from 0.01 to 100 μm, collectively referred to as total suspended particulate. PM10 and PM2.5 refer to atmospheric particulates having aerodynamic diameters less than or equal to 10 and 2.5 μm, respectively. The atmospheric particulates are both naturally derived and artificially derived. Natural sources include wind dust, volcanic ash, forest fires, floating sea salt, pollen, fungal spores, bacteria; but the main sources of atmospheric particulates are also artificial emissions such as fossil fuel combustion, biomass combustion, waste incineration, and other artificial sources of atmospheric particulates also include industrial dust and kitchen fumes. The atmospheric particulates are also complex in composition, with elemental carbon, organic carbon compounds, sulphates, nitrates, ammonium salts as the main components. Other common components include various metal elements, such as sodium, magnesium, calcium, aluminum, iron and other elements with rich contents in the crust, and lead, zinc, arsenic, cadmium, copper and other heavy metal elements mainly derived from human pollution.
The environmental detection department needs to periodically detect the emission of the atmospheric particulates in the exhaust pipelines of restaurants and factories, the conventional detection means is to measure the emission of the atmospheric particulates at the end of the pipeline by adopting a light attenuation method, the light attenuation method is based on the classical lambert beer law, the concentration of the atmospheric particulates is detected by utilizing the attenuation characteristic of light beams, the light is emitted into the gas with the particulates, and the light intensity is reduced due to the adsorptivity of the particulates stored in the medium, which is the absorption phenomenon of the light, and the concentration of the particulates in the gas can be obtained by measuring the adsorption degree of the light; however, the method is a precondition when in use, and the result obtained after detection is more accurate only when the gas contains the particles with higher concentration; there is an adhesive force between the collection of particles in the exhaust gas, and the adsorption of gas, steam, liquid, etc. on the dust surface, which all affect the pollution to the optical device generating part, and further affect the optical performance and service life of the optical element.
Disclosure of Invention
The invention provides an exhaust gas concentration detection mechanism to solve the technical problems, and the specific implementation mode is as follows:
an exhaust gas concentration detection mechanism comprising:
the photoelectric measuring assembly is integrated with a photoelectric sensor, a temperature sensor and a wind speed sensor which are electrically connected with a signal input end of the controller at the inner side;
the gas inlet cylinder is axially arranged at the head part of the photoelectric measurement assembly, a diameter-variable cylinder connected with a diameter-adjusting structure is sleeved in the gas inlet cylinder, the diameter-variable cylinder radially divides the gas inlet cylinder into a dynamic first gas inlet channel and a dynamic second gas inlet channel from inside to outside through caliber adjustment, an annular filter screen is additionally arranged in the second gas inlet channel, the first gas inlet channel is used for normal waste gas conveying, the second gas inlet channel forms clean and stable curtain-shaped airflow between waste gas and a sensor probe end and is used for prolonging the service life of the sensor, and the diameter-variable cylinder changes the curtain-shaped airflow speed in a caliber-adjusting mode according to the total flow rate of the waste gas;
the inductance measurement assembly is arranged at the tail part of the photoelectric measurement assembly and is of a cylindrical structure with an induction coil wound on the outer side, and the inductance measurement assembly and the photoelectric measurement assembly are complementary and used for detecting low-concentration exhaust gas of particulate matters.
Through adopting above technical scheme, utilize photoelectric measurement subassembly and inductance measurement subassembly's stack to use, realized having the accurate detection to the waste gas that has different particulate matter content, according to wind speed sensor's measured data to change the cross-sectional area of second air inlet channel through adjustable reducing section of thick bamboo, and then provide stable curtain form air current for follow-up detection, reduced the damage that waste gas caused to the sensor.
Optionally, the diameter-adjusting structure comprises fixed annular piece, slip annular piece and linkage subassembly, has seted up spacing mounting groove on the section of thick bamboo outer peripheral face that admits air, and fixed annular piece and slip annular piece all overlap and locate spacing mounting groove, and are equipped with the promotion structure that is used for controlling slip annular piece and take place axial movement in the fixed annular piece, and slip annular piece realizes radially opening and shutting through linkage subassembly control reducing section of thick bamboo.
Optionally, the reducing section of thick bamboo comprises a plurality of first arc and second arc that lay in turn along circumference, and both structures are similar, and the difference lies in that the back both sides of first arc are offered to the arc recess, and the back of second arc corresponds the department and sets up to the arc arch, and is equipped with the rubber spacer that can arcly stretch between adjacent first arc and the second arc, takes first arc as the example, and its back has still offered the arc guide slot, and its inside is provided with L shape barb, and the outer tip of filter screen is fixed connection with the lateral part of second air inlet channel, and its inner tip is radial sliding connection with the arc guide slot, and is equipped with the installation clearance between inner tip and the tank bottom.
Optionally, the fixed ring member is formed by annular body and first barrel axial concatenation, a plurality of axial conduction's arc guide hole has been seted up along circumference in the annular body outside, install electronic jar in the arc guide hole, the pneumatic arm termination of electronic jar is in the slip ring member, a plurality of radial guide slot has been seted up along circumference in the annular body inboard, a plurality of straight guide hole has been laid along circumference equidistance to first barrel, the linkage subassembly includes a plurality of articulated head rod and second connecting rod of each other, the tip of every head rod has all rotated and has been connect the push rod, the tip of every second connecting rod has all rotated and has been connect in the slip ring member, and each push rod all with corresponding radial guide slot sliding connection.
Optionally, one end of the push rod passes through a radial through hole of the air inlet cylinder and is connected to the back of the arc plate of the reducing cylinder, a sealing ring is arranged at the sliding connection part of the push rod and the radial through hole, and the part of the push rod penetrating into the second air inlet channel is in a hollow structure.
Optionally, the device further comprises a dust cover, wherein the dust cover is arranged outside the air inlet cylinder, the photoelectric measurement assembly and the inductance measurement assembly, and the end part of the air inlet cylinder is of a flange structure.
Optionally, the photoelectric measurement assembly is in a cylindrical structure, the front end of the inner side of the photoelectric measurement assembly is set to be a temperature and wind speed detection area, the rear end of the photoelectric measurement assembly is set to be a photoelectric detection area, the photoelectric detection area is vertically divided into any parts by at least one horizontal partition board, and photoelectric emission parts and photoelectric receiving parts of photoelectric sensors are arranged on two sides of the horizontal position of each photoelectric detection area.
Optionally, the signal input end of the controller is further electrically connected to the induction coil, and the signal output end of the controller is electrically connected to the electric cylinder, the alarm and the indicator lamp.
Optionally, still including the inside turbulence elimination subassembly of cover locating first air inlet channel, it includes along radial setting to the second barrel of arbitrary layer, a plurality of separator has been laid along circumference equidistance between the second barrel of adjacent layer, and the separator just sets up to the arc opening in one side of photoelectric measurement subassembly, be provided with two slant strain rings that are opposite form on the outer peripheral face of the second barrel of the outside, and the opening part of two slant strain rings all points to in inside, slant strain ring joint respectively in the L shape barb that corresponds.
Optionally, the application method of the exhaust gas concentration detection mechanism further comprises the following steps:
step S100, connecting a flange structure with the end part of a detected pipeline, collecting the temperature and the wind speed of waste gas through a temperature sensor and a wind speed sensor, and transmitting the collected waste gas to a controller;
step S200, controlling the telescopic travel of an air arm of the electric cylinder according to the wind speed of the waste gas, and further realizing caliber control of the variable-diameter cylinder through the sliding annular piece and the linkage assembly in sequence, so that the section ratio of the first air inlet channel and the second air inlet channel is optimal;
step S300, during the process of introducing the waste gas, the waste gas passing through the second air inlet channel is purified into clean gas by a filter screen, and before entering a photoelectric detection position, the clean gas is wrapped on the outer side of the waste gas to be detected, and stable annular curtain-shaped airflow is generated to replace the waste gas to be contacted with the arc-shaped lens of the photoelectric sensor;
step S400, enabling the exhaust gas passing through the first air inlet channel to stably perform axial movement after passing through the turbulence eliminating assembly;
step S500, the waste gas sequentially enters a photoelectric measurement assembly and an inductance measurement assembly, wherein the photoelectric measurement assembly is used for measuring the waste gas with high concentration of the particulate matters, and the inductance measurement assembly is used for measuring the waste gas with low concentration of the particulate matters;
in step S600, when the particle size is too large, the exhaust gas will be settled in the photoelectric measurement assembly, so that in order to improve the measurement accuracy, the average value of the measurement data of the vertical groups of photoelectric sensors is required to be calculated.
In summary, the present application includes the following beneficial technical effects:
1. according to the invention, the photoelectric measurement assembly and the inductance measurement assembly are combined to realize accurate detection of waste gas with different particulate matters;
2. the variable-diameter cylinder and the filter screen are additionally arranged, so that the outer layer of the waste gas forms stable curtain-shaped airflow, direct contact between the waste gas and the measuring end part of the sensor is avoided, and the service life of the sensor is prolonged;
3. the invention has simple structure, realizes the adjustment of the size of the flow channel of the curtain-shaped air flow according to the different flow rates of the waste gas by arranging the diameter-variable cylinder, further ensures that the curtain-shaped air flow is always kept in a stable state, and simultaneously solves the adaptability problem of the diameter-variable type annular filter screen;
4. the invention prevents the waste gas from generating lateral deviation through the turbulence eliminating component, thereby improving the accuracy of measuring the content of the particulate matters on one hand and enhancing the stability of curtain-shaped airflow on the other hand;
5. according to the invention, by arranging the horizontal partition plates and the plurality of photoelectric measurement components, the sedimentation defect caused by oversized particles in the waste gas is reduced, and the accuracy of waste gas concentration detection is further improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of the structure of the present invention;
FIG. 3 is a schematic view of the present invention with the dust cap removed;
FIG. 4 is a schematic view of the explosive structure of FIG. 3 according to the present invention;
FIG. 5 is a cross-sectional view of the front structure of FIG. 3 of the present invention;
FIG. 6 is a cross-sectional view of the side view structure of FIG. 3 in accordance with the present invention;
FIG. 7 is an enlarged view of the portion A of FIG. 6 in accordance with the present invention;
FIG. 8 is a schematic view of the structure of a position section of a reducing cylinder in the present invention;
FIG. 9 is a schematic view of the explosive structure of FIG. 8 according to the present invention;
FIG. 10 is a cross-sectional view of the structure of FIG. 8 in accordance with the present invention;
FIG. 11 is an enlarged view of the portion B of FIG. 10 in accordance with the present invention;
FIG. 12 is a schematic view of the structure of the stationary ring part of the present invention;
FIG. 13 is a schematic view of the diameter-variable cylinder of the present invention;
FIG. 14 is a schematic view of an exploded construction of an arcuate panel of the present invention;
FIG. 15 is a cross-sectional view of the structure of the present invention with turbulence cancellation assemblies added;
FIG. 16 is a second cross-sectional view of the structure of the present invention with turbulence cancellation assemblies added;
FIG. 17 is an enlarged view of the portion C of FIG. 16 in accordance with the present invention;
fig. 18 is a schematic electrical structure of the present invention.
Reference numerals illustrate:
1. the device comprises an air inlet cylinder, 2, a photoelectric measuring assembly, 3, an inductance measuring assembly, 4, a reducing cylinder, 5, a fixed annular piece, 6, a sliding annular piece, 7, a rubber isolation strip, 8, a linkage assembly, 9, a turbulence eliminating assembly, 10, a dust cover, 11, a filter screen, 12, a first air inlet channel, 13, a second air inlet channel, 14, a controller, 101, a limit mounting groove, 102, a radial through hole, 103, a flange structure, 201, a photoelectric sensor, 202, a temperature sensor, 203, a wind speed sensor, 204, a data transmission line, 205, an arc lens, 206, a horizontal partition board, 301, an induction coil, 401, a first arc plate, 402, a second arc plate, 4011, an arc guide groove, 4012, an arc groove, 4013, an L-shaped barb, 4021, an arc protrusion, 501, a ring body, 502, an electric cylinder, 503, a radial guide groove, 504, a first cylinder, 5011, an arc guide hole, 5041, a straight guide groove, 801, a push rod, 802, a first connecting rod, a second connecting rod, 8011, a hollow structure, 901, a second connecting rod, a sealing ring, a 90803, an arc opening, a sealing ring, a 90803.
Detailed Description
The following describes specific embodiments of the invention with reference to the drawings and examples:
it should be noted that the structures, proportions, sizes, etc. shown in the drawings are merely for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the invention, which is defined by the appended claims.
Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
The present application is described in further detail below in conjunction with figures 1-18.
The embodiment of the application discloses an exhaust gas concentration detection mechanism.
Example 1: referring to fig. 1 to 18, the present embodiment provides an exhaust gas concentration detection mechanism, including an air inlet cylinder 1, a photoelectric measurement assembly 2, a reducing cylinder 4 and a diameter-adjusting structure, the inner side of the photoelectric measurement assembly 2 is integrated with a photoelectric sensor 201, a temperature sensor 202 and a wind speed sensor 203 which are electrically connected with a signal input end of a controller 14, the air inlet cylinder 1 is axially arranged at the head of the photoelectric measurement assembly 2, the inside of the air inlet cylinder 1 is sleeved with the reducing cylinder 4 connected with the diameter-adjusting structure, the air inlet cylinder 1 is radially divided into a dynamic first air inlet channel 12 and a dynamic second air inlet channel 13 from inside to outside by the diameter-adjusting of the reducing cylinder 4, an annular filter screen 11 is additionally arranged in the second air inlet channel 13, in the structure, the flow speed of exhaust gas is measured by the wind speed sensor 203, the exhaust gas in the second air inlet channel 13 forms a clean curtain-shaped air flow and is wrapped outside the exhaust gas in the first air inlet channel 12, so as to protect the sensor, the flow speed of the exhaust gas in the process can influence the stability of the curtain-shaped air flow, and the diameter of the second air inlet channel 13 is further adjusted in real time by the reducing cylinder 4, so as to improve the stability of the curtain-shaped air flow and service life of the sensor.
Referring to fig. 1 to 9, the diameter-adjusting structure is composed of a fixed annular member 5, a sliding annular member 6 and a linkage assembly 8, a limit mounting groove 101 is formed in the outer peripheral surface of the air inlet cylinder 1, the fixed annular member 5 and the sliding annular member 6 are sleeved in the limit mounting groove 101, a pushing structure for controlling the sliding annular member 6 to axially move is arranged in the fixed annular member 5, the sliding annular member 6 controls the diameter-changing cylinder 4 to radially open and close through the linkage assembly 8, and in the structure, the linkage assembly 8 specifically converts axial displacement of the sliding annular member 6 into control of radial diameter adjustment of the diameter-changing cylinder 4.
Referring to fig. 1 to 14, the reducing cylinder 4 is composed of a plurality of first arc plates 401 and second arc plates 402 which are alternately distributed along the circumferential direction, and the two structures are similar, wherein the two sides of the back of the first arc plate 401 are provided with arc grooves 4012, the corresponding positions of the back of the second arc plate 402 are provided with arc protrusions 4021, and rubber isolating strips 7 which can be stretched in an arc manner are arranged between the adjacent first arc plate 401 and the adjacent second arc plate 402.
Referring to fig. 1 to 14, taking the first arc plate 401 as an example, the back of the first arc plate 401 is further provided with an arc-shaped guide groove 4011, an L-shaped barb 4013 is arranged in the first arc plate, the outer end of the filter screen 11 is fixedly connected with the side part of the second air inlet channel 13, the inner end of the filter screen 11 is radially and slidably connected with the arc-shaped guide groove 4011, and an installation gap is formed between the inner end and the groove bottom.
Referring to fig. 11, the fixed ring member 5 is formed by axially splicing a ring 501 and a first cylinder body 504, a plurality of arc guide holes 5011 which are axially conducted are formed in the outer side of the ring 501 along the circumferential direction, an electric cylinder 502 is installed in the arc guide holes 5011, an air arm of the electric cylinder 502 is connected to the sliding ring member 6, a plurality of radial guide grooves 503 are formed in the inner side of the ring 501 along the circumferential direction, a plurality of direct guide holes 5041 are formed in the first cylinder body 504 at equal intervals along the circumferential direction, and the electric cylinder 502 adopted in the structure is a device for converting electric energy into mechanical motion. The motor provides power, the speed reducer reduces output rotating speed and increases output torque, and the transmission mechanism converts electric energy into linear motion, so that the motor has the advantages of high positioning accuracy, speed regulation, stopping at any position and easiness in realizing automatic control.
Referring to fig. 10 to 13, the linkage assembly 8 includes a plurality of groups of first connecting rods 802 and second connecting rods 803 that are hinged to each other, the end portion of each first connecting rod 802 is rotatably connected with a push rod 801, the end portion of each second connecting rod 803 is rotatably connected with a sliding ring member 6, each push rod 801 is slidably connected with a corresponding radial guide groove 503, one end of each push rod 801 passes through a radial through hole 102 of the air inlet cylinder 1 and is connected with the back of an arc plate of the reducing cylinder 4, a sealing ring 8012 is arranged at a sliding connection position between each push rod 801 and the radial through hole 102, a portion of each push rod 801 penetrating into the second air inlet channel 13 is provided with a hollow structure 8011, and the sealing ring 8012 in the structure can promote the tightness of the radial sliding position, and the arranged hollow structure 8011 can reduce the influence of the push rod 801 on the second air inlet channel 13 as much as possible.
Example 2: referring to fig. 1 to 3, this embodiment also provides an exhaust gas concentration detection mechanism, including intake cylinder 1, photoelectric measurement subassembly 2 and inductance measurement subassembly 3, the afterbody of photoelectric measurement subassembly 2 is located to inductance measurement subassembly 3, inductance measurement subassembly 3 sets up to the outside winding has the tubular structure of induction coil 301, annular induction coil 301 need not directly rub with the waste gas and can produce induced current, just so can not produce the interference to the air current flow field in measuring area, inductance measurement subassembly 3 and photoelectric measurement subassembly 2 form complementation, the two sharing has realized the accurate detection to waste gas when the different contents of particulate matter.
Referring to fig. 1 and 4, the photoelectric sensor further comprises a dust cover 10, wherein the dust cover 10 is arranged on the air inlet cylinder 1 and the photoelectric measuring setOutside of piece 2 and inductance measurement subassembly 3, the tip of inlet tube 1 sets up to flange structure 103, and inlet tube 1 passes through flange structure 103 in this structure and is connected with on-the-spot exhaust duct, and this scheme is not limited to flange structure 103's mounting means, also can realize the installation through the conventional connected mode among the prior art, and induction coil 301 is the detection that carries out particulate matter content in the waste gas based on the principle of gauss's theorem. For any closed curved surface S, the flux phi E of the electric field at a certain point P in the interior of the curved surface S and the free charge quantity Q contained in the point f Proportional to the shape and size of the curved surface. Namely:
ΦE =∮ S E·dS = 1/ε0 · Q f
wherein E represents the electric field strength; s represents a curved surface; dS represents a tiny area element on the curved surface; ε 0 is the vacuum dielectric constant and has a value of 8.85X10-12F/m; q (Q) f Representing the amount of free charge passing through the closed curved surface S.
When the curved surface S is sleeved with a positive charge, the electric field flux phi E in the curved surface is positive, and when the curved surface S is sleeved with a negative charge, the electric field flux phi E in the curved surface is negative. If the curved surface has no charge, Φe=0, namely the concentration of charged particles in the exhaust gas can be measured by detecting the amount of induced electric charge; the sensing coil 301 has lower measurement accuracy when the particulate matter content in the exhaust gas is low, and has higher measurement accuracy when the particulate matter content is high, and as the particulate matter concentration increases, the sensing signal is stronger, and the sensing current also increases.
Example 3: referring to fig. 1 to 5, based on the above embodiment, the present embodiment further provides an exhaust gas concentration detection mechanism, in which the photoelectric measurement component 2 is of a cylindrical structure, the front end of the inner side of the photoelectric measurement component is set to be a temperature and wind speed detection area, and the rear end of the photoelectric measurement component is set to be a photoelectric detection area, referring to fig. 5, in the structure, the photoelectric detection area is vertically divided into three parts by two horizontal partition boards 206, and photoelectric emission parts and photoelectric receiving parts of photoelectric sensors 201 are arranged on two sides of each photoelectric detection area in a horizontal position, when the size of particulate matters in the exhaust gas is too large, a sedimentation phenomenon is generated, and after layering the photoelectric detection area, the influence of sedimentation on actual detection data is reduced.
Example 4: referring to fig. 15 to 18, based on the above embodiment, the present embodiment further provides an exhaust gas concentration detection mechanism, further including a turbulence eliminating component 9 sleeved inside the first air intake channel 12, including second cylinders 901 radially arranged as arbitrary layers, and a plurality of separating sheets 902 are circumferentially equidistantly arranged between the second cylinders 901 of adjacent layers, in which turbulence benefits of main flow exhaust gas inside the first air intake channel 12 are eliminated by the turbulence eliminating component 9, so that exhaust gas is further prevented from entering into curtain-shaped airflow, and accuracy of main flow detection data is improved.
Referring to fig. 16, the side of the dividing plate 902 opposite to the photoelectric measurement assembly 2 is provided with an arc-shaped opening 9021, the dividing plate 902 divides the exhaust gas in the first air inlet channel 12 into a plurality of parts, the probability of radial movement is reduced, and the arc-shaped opening 9021 can eliminate the blocking effect of the dividing plate 902 on the exhaust gas, so that the blocked area is gradually filled when the exhaust gas passes through the dividing plate 902.
Referring to fig. 16 to 17, two opposite oblique strain rings 903 are disposed on the outer circumferential surface of the second cylinder 901, and the openings of the two oblique strain rings 903 are both directed to the inside, the oblique strain rings 903 are respectively clamped to corresponding L-shaped barbs 4013, the size of the first air inlet channel 12 is dynamically changed due to the influence of the diameter change of the diameter-changing cylinder 4, in order to eliminate the extrusion of the turbulence eliminating assembly 9 caused by the size change of the first air inlet channel 12, L-shaped barbs 4013 and the oblique strain rings 903 are disposed, the orientation of the oblique strain rings 903 can prevent exhaust gas from entering the clamping part during normal use, and the oblique strain rings 903 are pressed by the L-shaped barbs 4013 during diameter change to change the inclination angle, so that the pressing effect of the diameter-changing cylinder 4 on the turbulence eliminating assembly 9 is counteracted.
Referring to fig. 18, the signal input end of the controller 14 is further electrically connected to the induction coil 301, and the signal output end thereof is electrically connected to the electric cylinder 502, an alarm and an indicator lamp, wherein the alarm and the indicator lamp are respectively disposed at the side of the air inlet cylinder 1 for warning when the concentration exceeds the standard.
Example 5: referring to fig. 1 to 15, the present embodiment further provides a method for using the exhaust gas concentration detection mechanism, which specifically includes the steps of:
step S100, connecting the flange structure 103 with the end part of the detected pipeline, collecting the temperature and the wind speed of the waste gas through the temperature sensor 202 and the wind speed sensor 203, and transmitting the collected temperature and the wind speed to the controller 14;
step S200, controlling the telescopic stroke of the air arm of the electric cylinder 502 according to the wind speed of the exhaust gas, and further realizing caliber control of the variable-diameter cylinder 4 through the sliding annular piece 6 and the linkage assembly 8 in sequence, so that the section ratio of the first air inlet channel 12 to the second air inlet channel 13 is optimal;
step S300, during the process of introducing the exhaust gas, the exhaust gas passing through the second air inlet channel 13 is purified by the filter screen 11 into clean gas, and before entering the photoelectric detection position, the clean gas wraps the outer side of the exhaust gas to be detected, and generates a stable annular curtain-shaped airflow to replace the exhaust gas to contact with the arc-shaped lens 205 of the photoelectric sensor 201;
step S400, after the exhaust gas passing through the first air inlet channel 12 passes through the turbulence eliminating assembly 9, the exhaust gas can stably perform axial movement;
step S500, the waste gas sequentially enters a photoelectric measurement assembly 2 and an inductance measurement assembly 3, wherein the photoelectric measurement assembly 2 is used for measuring the waste gas with high concentration of the particulate matters, and the inductance measurement assembly 3 is used for measuring the waste gas with low concentration of the particulate matters;
in step S600, when the particle size is too large, the exhaust gas will be settled in the photoelectric measurement assembly 2, and in order to improve the measurement accuracy, the average value of the measurement data of the vertical groups of photoelectric sensors 201 needs to be calculated.
Many other changes and modifications may be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (10)
1. The utility model provides an exhaust gas concentration detection mechanism, includes photoelectric measurement subassembly (2), and its inboard is integrated with photoelectric sensor (201), temperature sensor (202) and wind speed sensor (203) that are connected with the signal input part electricity of controller (14), its characterized in that still includes:
the photoelectric measuring device comprises an air inlet cylinder (1), wherein the air inlet cylinder is axially arranged at the head part of the photoelectric measuring assembly (2), a reducing cylinder (4) connected with a diameter-adjusting structure is sleeved in the air inlet cylinder (1), the air inlet cylinder (4) is radially divided into a dynamic first air inlet channel (12) and a dynamic second air inlet channel (13) from inside to outside through caliber adjustment, an annular filter screen (11) is additionally arranged in the second air inlet channel (13), the first air inlet channel (12) is used for normal waste gas conveying, the second air inlet channel (13) forms clean and stable curtain-shaped air flow between waste gas and a sensor probe end so as to improve the service life of the sensor, and the reducing cylinder (4) changes the curtain-shaped air flow speed in a caliber-adjusting mode according to the total flow rate of the waste gas;
the inductance measurement assembly (3) is arranged at the tail part of the photoelectric measurement assembly (2) and is of a cylindrical structure with an induction coil (301) wound on the outer side, and the inductance measurement assembly (3) and the photoelectric measurement assembly (2) are complementary and used for detecting low-concentration exhaust gas of particulate matters.
2. The exhaust gas concentration detection mechanism according to claim 1, wherein the diameter-adjusting structure is composed of a fixed annular member (5), a sliding annular member (6) and a linkage assembly (8), a limit mounting groove (101) is formed in the outer peripheral surface of the air inlet cylinder (1), the fixed annular member (5) and the sliding annular member (6) are both sleeved in the limit mounting groove (101), a pushing structure for controlling the sliding annular member (6) to axially move is arranged in the fixed annular member (5), and the sliding annular member (6) controls the diameter-changing cylinder (4) to radially open and close through the linkage assembly (8).
3. The exhaust gas concentration detection mechanism according to claim 2, wherein the reducing cylinder (4) is composed of a plurality of first arc plates (401) and second arc plates (402) which are alternately distributed along the circumferential direction, and the two arc plates are similar in structure, wherein arc grooves (4012) are formed in two sides of the back of the first arc plate (401), arc protrusions (4021) are arranged at corresponding positions of the back of the second arc plate (402), and rubber isolating strips (7) capable of being stretched in an arc direction are arranged between the adjacent first arc plates (401) and the adjacent second arc plates (402);
taking the first arc-shaped plate (401) as an example, the back of the first arc-shaped plate is also provided with an arc-shaped guide groove (4011), an L-shaped barb (4013) is arranged in the first arc-shaped guide groove, the outer end part of the filter screen (11) is fixedly connected with the side part of the second air inlet channel (13), the inner end part of the filter screen is radially and slidably connected with the arc-shaped guide groove (4011), and an installation gap is arranged between the inner end part and the bottom of the groove.
4. The exhaust gas concentration detection mechanism according to claim 3, wherein the fixed annular member (5) is formed by axially splicing a ring body (501) and a first cylinder body (504), a plurality of arc-shaped guide holes (5011) which are axially communicated are formed in the outer side of the ring body (501) along the circumferential direction, an electric cylinder (502) is installed in the arc-shaped guide holes (5011), a gas arm of the electric cylinder (502) is connected with the sliding annular member (6), a plurality of radial guide grooves (503) are formed in the inner side of the ring body (501) along the circumferential direction, and a plurality of straight guide holes (5041) are formed in the first cylinder body (504) along the circumferential direction at equal intervals;
the linkage assembly (8) comprises a plurality of groups of first connecting rods (802) and second connecting rods (803) which are mutually hinged, the end parts of the first connecting rods (802) are respectively connected with push rods (801) in a rotating mode, the end parts of the second connecting rods (803) are respectively connected with the sliding annular piece (6) in a rotating mode, and the push rods (801) are respectively connected with the corresponding radial guide grooves (503) in a sliding mode.
5. The exhaust gas concentration detection mechanism according to claim 4, wherein one end of the push rod (801) passes through a radial through hole (102) of the air inlet cylinder (1) to be connected to the back of the arc plate of the reducing cylinder (4), a sealing ring (8012) is arranged at the sliding connection part of the push rod (801) and the radial through hole (102), and a part of the push rod (801) penetrating into the second air inlet channel (13) is provided with a hollow structure (8011).
6. The exhaust gas concentration detection mechanism according to claim 5, further comprising a dust cover (10), wherein the dust cover (10) is provided outside the air intake cylinder (1), the photoelectric measurement assembly (2) and the inductance measurement assembly (3), and an end portion of the air intake cylinder (1) is provided with a flange structure (103).
7. An exhaust gas concentration detection mechanism according to claim 1, wherein said photoelectric measurement unit (2) has a cylindrical structure, and a front end of an inner side thereof is provided with a temperature and wind speed detection area, and a rear end thereof is provided with a photoelectric detection area;
the photoelectric detection area is vertically divided into any parts by at least one horizontal partition board (206), and the photoelectric emission part and the photoelectric receiving part of the photoelectric sensor (201) are arranged on two sides of the horizontal position of each part of the photoelectric detection area.
8. The exhaust gas concentration detection mechanism according to claim 6, wherein the signal input end of the controller (14) is further electrically connected to the induction coil (301), and the signal output end thereof is electrically connected to the electric cylinder (502), the alarm and the indicator lamp.
9. The exhaust gas concentration detection mechanism according to claim 8, further comprising a turbulence eliminating assembly (9) sleeved inside the first air intake passage (12), wherein the turbulence eliminating assembly comprises a second cylinder (901) arranged in any layer along the radial direction, a plurality of separation sheets (902) are circumferentially equidistantly arranged between the second cylinders (901) of adjacent layers, and one side of the separation sheet (902) opposite to the photoelectric measurement assembly (2) is provided with an arc-shaped opening (9021);
two opposite oblique strain rings (903) are arranged on the outer peripheral surface of the second cylinder body (901) at the outermost side, the opening parts of the two oblique strain rings (903) are directed to the inside, and the oblique strain rings (903) are respectively clamped with the corresponding L-shaped barbs (4013).
10. The method of using an exhaust gas concentration detection mechanism according to claim 8, wherein:
step S100, connecting the flange structure (103) with the end part of a detected pipeline, collecting the temperature and the wind speed of waste gas through the temperature sensor (202) and the wind speed sensor (203), and transmitting the collected temperature and the wind speed to the controller (14);
step 200, controlling the telescopic stroke of an air arm of the electric cylinder (502) according to the wind speed of the waste gas, and further controlling the caliber of the variable-diameter cylinder (4) through the sliding annular piece (6) and the linkage assembly (8) in sequence, so that the section ratio of the first air inlet channel (12) to the second air inlet channel (13) is optimal;
step S300, during the introduction of the waste gas, the waste gas passing through the second air inlet channel (13) is purified by a filter screen (11) into clean gas, and before entering a photoelectric detection position, the clean gas wraps the outer side of the waste gas to be detected and generates stable annular curtain-shaped airflow to replace the waste gas to contact with the arc-shaped lens (205) of the photoelectric sensor (201);
step S400, enabling the exhaust gas passing through the first air inlet channel (12) to stably perform axial movement after passing through the turbulence eliminating assembly (9);
step S500, enabling the waste gas to sequentially enter the photoelectric measurement assembly (2) and the inductance measurement assembly (3), wherein the photoelectric measurement assembly (2) is used for measuring the waste gas with high concentration of the particulate matters, and the inductance measurement assembly (3) is used for measuring the waste gas with low concentration of the particulate matters;
in step S600, when the particle size is too large, the exhaust gas will be settled in the photoelectric measurement assembly (2), and in order to improve the measurement accuracy, the average value of the measurement data of the vertical groups of photoelectric sensors (201) needs to be calculated.
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Citations (46)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1432609A (en) * | 1972-06-23 | 1976-04-22 | Eocom Corp | Interferometer spectrometer for discrete frequency analysis of emission or absorption spectra and method |
| US4406155A (en) * | 1980-09-11 | 1983-09-27 | Hans List | Measuring apparatus for the determination of the particulates content of exhaust gases |
| DE4135843A1 (en) * | 1991-10-31 | 1993-05-06 | Rosemount Gmbh & Co, 6450 Hanau, De | Absorption spectrum analyser for gas analysis - has transparent wall between measuring chamber and reference chamber, and intermediate variable slit |
| US6062392A (en) * | 1998-11-13 | 2000-05-16 | Mesosystems Technology, Inc. | Micromachined virtual impactor |
| US20040011975A1 (en) * | 2002-07-17 | 2004-01-22 | Nicoli David F. | Sensors and methods for high-sensitivity optical particle counting and sizing |
| US20040072278A1 (en) * | 2002-04-01 | 2004-04-15 | Fluidigm Corporation | Microfluidic particle-analysis systems |
| JP2006343293A (en) * | 2005-06-10 | 2006-12-21 | Toyota Motor Corp | Exhaust gas analyzer |
| CN101331391A (en) * | 2005-12-16 | 2008-12-24 | 丰田自动车株式会社 | Method for analyzing exhaust gas and apparatus for analyzing exhaust gas |
| CN101587068A (en) * | 2009-05-27 | 2009-11-25 | 陈小英 | Multi-sensor gas analyzer |
| WO2012071326A2 (en) * | 2010-11-24 | 2012-05-31 | University Of Pittsburgh - Of The Commonwealth System Of Higher Education | Gas sensing system employing raman scattering |
| US20120281216A1 (en) * | 2011-05-05 | 2012-11-08 | Emd Millipore Corporation | Apparatus and method for increasing collection efficiency in capillary based flowcytometry |
| WO2013134745A1 (en) * | 2012-03-08 | 2013-09-12 | Cyvek, Inc | Portable microfluidic assay devices and methods of manufacture and use |
| JP2014174119A (en) * | 2013-03-12 | 2014-09-22 | Panasonic Corp | Light guide tube for gas sensor |
| CN104792671A (en) * | 2014-06-12 | 2015-07-22 | 南京环康电子科技有限公司 | Particle measuring device and measuring method |
| CN105424570A (en) * | 2015-12-17 | 2016-03-23 | 中国科学院合肥物质科学研究院 | Detection device and detection method for number concentration of fine particulate matter in motor vehicle exhaust gas |
| CN205656094U (en) * | 2015-09-21 | 2016-10-19 | 劲天环境科技（上海）有限公司 | Detection apparatus for particulate matter concentration in air |
| CN106662519A (en) * | 2014-08-20 | 2017-05-10 | 研究三角协会 | Devices, systems and methods for detecting particles |
| EP3258241A2 (en) * | 2017-09-14 | 2017-12-20 | Sensirion AG | Particulate matter sensor device |
| CN107727541A (en) * | 2017-10-31 | 2018-02-23 | 中国石油大学(北京) | Aerosol monitoring device and method and pipe-line system in pipeline |
| CN107741386A (en) * | 2017-10-31 | 2018-02-27 | 中国石油大学(北京) | Pipeline particle on-line measuring device and method |
| CN108051348A (en) * | 2017-12-05 | 2018-05-18 | 西人马（厦门）科技有限公司 | A kind of detecting system and method for fluid non-metallic particle concentration |
| WO2018188997A1 (en) * | 2017-04-12 | 2018-10-18 | Robert Bosch Gmbh | Exhaust gas sensor, in particular particle sensor |
| CN108872124A (en) * | 2017-05-12 | 2018-11-23 | 中国石油化工股份有限公司 | A kind of online carbonyl analyzer and Burning Control System of Heating Furnace |
| CN108956481A (en) * | 2017-05-19 | 2018-12-07 | 杭州春来科技有限公司 | Alternately Aerosol Extinction and NO in measurement atmosphere2The device and method of concentration |
| CN109154538A (en) * | 2016-05-18 | 2019-01-04 | 多传感器科学公司 | Hydrocarbon leakage imaging and basis weight sensor |
| CN109187355A (en) * | 2018-09-04 | 2019-01-11 | 深圳市卡普瑞环境科技有限公司 | A kind of purging gas path device applied to optical cavity structure |
| CN109596481A (en) * | 2018-12-28 | 2019-04-09 | 复旦大学 | It is a kind of for measuring the atmospheric aerosol smog system of particulate matter particle diameter distribution in simulated environment |
| CN109596489A (en) * | 2018-11-29 | 2019-04-09 | 海拉（厦门）电气有限公司 | A kind of laser PM2.5 dust sensor of automatic focusing |
| CN109596467A (en) * | 2018-12-25 | 2019-04-09 | 复旦大学 | A kind of atmospheric aerosol smog system for simulating biomass open burning and can measure mass concentration |
| CN109596475A (en) * | 2018-12-27 | 2019-04-09 | 复旦大学 | The aerosol cloud system of atmospheric aerosol wall damage in a kind of measurable simulated environment |
| CN109916789A (en) * | 2019-01-29 | 2019-06-21 | 黑龙江科技大学 | A kind of low concentration small particle dust investigating based on electrostatic induction |
| US20190271629A1 (en) * | 2018-03-01 | 2019-09-05 | Ford Global Technologies, Llc | Methods and systems for exhaust particulate matter sensing |
| WO2019223934A1 (en) * | 2018-05-24 | 2019-11-28 | Robert Bosch Gmbh | Gas sensor having a deflection surface on the base housing side for throttling the fluid flow |
| CN111323350A (en) * | 2020-03-31 | 2020-06-23 | 罗克佳华科技集团股份有限公司 | High-precision particle detection sensor based on light scattering method and detection method thereof |
| CN111474090A (en) * | 2020-04-26 | 2020-07-31 | 张家港谱析传感科技有限公司 | Nondestructive online detection device and nondestructive online detection method for particle size and concentration of dust |
| CN111721733A (en) * | 2020-06-25 | 2020-09-29 | 重庆粟韬科技有限公司 | Automobile exhaust detection device and method based on double-idling method |
| CN112098606A (en) * | 2020-09-22 | 2020-12-18 | 佛山市龙生光启科技有限公司 | Vehicle-mounted fuel waste gas detection system |
| US10962462B2 (en) * | 2018-09-20 | 2021-03-30 | Hyundai Motor Company | Particulate matter-sensing sensor assembly |
| CN113512522A (en) * | 2013-03-15 | 2021-10-19 | 普林斯顿大学理事会 | Method and apparatus for high throughput purification |
| CN114324098A (en) * | 2022-03-10 | 2022-04-12 | 南京波瑞自动化科技有限公司 | Double-light-path laser forward scattering particulate matter concentration measuring device |
| CN114486404A (en) * | 2022-01-29 | 2022-05-13 | 江苏省环境监测中心 | Constant-speed sampling method for directly measuring waste gas particulate matters of fixed pollution source |
| CN114544450A (en) * | 2022-02-23 | 2022-05-27 | 清控(江苏)系统有限公司 | Waste gas on-line treatment monitoring system |
| CN217111958U (en) * | 2022-04-19 | 2022-08-02 | 山东鸣川汽车集团有限公司 | Air inlet particle sensor probe |
| CN114894686A (en) * | 2022-05-10 | 2022-08-12 | 中国矿业大学 | Real-time detection device and detection method for concentration and components of air particulate matters |
| CN115561134A (en) * | 2022-09-23 | 2023-01-03 | 杭州电子科技大学 | Detection sensor for measuring concentration of oil smoke particles based on light scattering method |
| EP4155711A1 (en) * | 2021-09-24 | 2023-03-29 | Kidde Technologies, Inc. | Omni-directional particulate extraction inlet |
-
2023
- 2023-05-16 CN CN202310546264.6A patent/CN116380740B/en active Active
Patent Citations (46)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1432609A (en) * | 1972-06-23 | 1976-04-22 | Eocom Corp | Interferometer spectrometer for discrete frequency analysis of emission or absorption spectra and method |
| US4406155A (en) * | 1980-09-11 | 1983-09-27 | Hans List | Measuring apparatus for the determination of the particulates content of exhaust gases |
| DE4135843A1 (en) * | 1991-10-31 | 1993-05-06 | Rosemount Gmbh & Co, 6450 Hanau, De | Absorption spectrum analyser for gas analysis - has transparent wall between measuring chamber and reference chamber, and intermediate variable slit |
| US6062392A (en) * | 1998-11-13 | 2000-05-16 | Mesosystems Technology, Inc. | Micromachined virtual impactor |
| US20040072278A1 (en) * | 2002-04-01 | 2004-04-15 | Fluidigm Corporation | Microfluidic particle-analysis systems |
| US20040011975A1 (en) * | 2002-07-17 | 2004-01-22 | Nicoli David F. | Sensors and methods for high-sensitivity optical particle counting and sizing |
| JP2006343293A (en) * | 2005-06-10 | 2006-12-21 | Toyota Motor Corp | Exhaust gas analyzer |
| CN101331391A (en) * | 2005-12-16 | 2008-12-24 | 丰田自动车株式会社 | Method for analyzing exhaust gas and apparatus for analyzing exhaust gas |
| CN101587068A (en) * | 2009-05-27 | 2009-11-25 | 陈小英 | Multi-sensor gas analyzer |
| WO2012071326A2 (en) * | 2010-11-24 | 2012-05-31 | University Of Pittsburgh - Of The Commonwealth System Of Higher Education | Gas sensing system employing raman scattering |
| US20120281216A1 (en) * | 2011-05-05 | 2012-11-08 | Emd Millipore Corporation | Apparatus and method for increasing collection efficiency in capillary based flowcytometry |
| WO2013134745A1 (en) * | 2012-03-08 | 2013-09-12 | Cyvek, Inc | Portable microfluidic assay devices and methods of manufacture and use |
| JP2014174119A (en) * | 2013-03-12 | 2014-09-22 | Panasonic Corp | Light guide tube for gas sensor |
| CN113512522A (en) * | 2013-03-15 | 2021-10-19 | 普林斯顿大学理事会 | Method and apparatus for high throughput purification |
| CN104792671A (en) * | 2014-06-12 | 2015-07-22 | 南京环康电子科技有限公司 | Particle measuring device and measuring method |
| CN106662519A (en) * | 2014-08-20 | 2017-05-10 | 研究三角协会 | Devices, systems and methods for detecting particles |
| CN205656094U (en) * | 2015-09-21 | 2016-10-19 | 劲天环境科技（上海）有限公司 | Detection apparatus for particulate matter concentration in air |
| CN105424570A (en) * | 2015-12-17 | 2016-03-23 | 中国科学院合肥物质科学研究院 | Detection device and detection method for number concentration of fine particulate matter in motor vehicle exhaust gas |
| CN109154538A (en) * | 2016-05-18 | 2019-01-04 | 多传感器科学公司 | Hydrocarbon leakage imaging and basis weight sensor |
| WO2018188997A1 (en) * | 2017-04-12 | 2018-10-18 | Robert Bosch Gmbh | Exhaust gas sensor, in particular particle sensor |
| CN108872124A (en) * | 2017-05-12 | 2018-11-23 | 中国石油化工股份有限公司 | A kind of online carbonyl analyzer and Burning Control System of Heating Furnace |
| CN108956481A (en) * | 2017-05-19 | 2018-12-07 | 杭州春来科技有限公司 | Alternately Aerosol Extinction and NO in measurement atmosphere2The device and method of concentration |
| EP3258241A2 (en) * | 2017-09-14 | 2017-12-20 | Sensirion AG | Particulate matter sensor device |
| CN107741386A (en) * | 2017-10-31 | 2018-02-27 | 中国石油大学(北京) | Pipeline particle on-line measuring device and method |
| CN107727541A (en) * | 2017-10-31 | 2018-02-23 | 中国石油大学(北京) | Aerosol monitoring device and method and pipe-line system in pipeline |
| CN108051348A (en) * | 2017-12-05 | 2018-05-18 | 西人马（厦门）科技有限公司 | A kind of detecting system and method for fluid non-metallic particle concentration |
| US20190271629A1 (en) * | 2018-03-01 | 2019-09-05 | Ford Global Technologies, Llc | Methods and systems for exhaust particulate matter sensing |
| WO2019223934A1 (en) * | 2018-05-24 | 2019-11-28 | Robert Bosch Gmbh | Gas sensor having a deflection surface on the base housing side for throttling the fluid flow |
| CN109187355A (en) * | 2018-09-04 | 2019-01-11 | 深圳市卡普瑞环境科技有限公司 | A kind of purging gas path device applied to optical cavity structure |
| US10962462B2 (en) * | 2018-09-20 | 2021-03-30 | Hyundai Motor Company | Particulate matter-sensing sensor assembly |
| CN109596489A (en) * | 2018-11-29 | 2019-04-09 | 海拉（厦门）电气有限公司 | A kind of laser PM2.5 dust sensor of automatic focusing |
| CN109596467A (en) * | 2018-12-25 | 2019-04-09 | 复旦大学 | A kind of atmospheric aerosol smog system for simulating biomass open burning and can measure mass concentration |
| CN109596475A (en) * | 2018-12-27 | 2019-04-09 | 复旦大学 | The aerosol cloud system of atmospheric aerosol wall damage in a kind of measurable simulated environment |
| CN109596481A (en) * | 2018-12-28 | 2019-04-09 | 复旦大学 | It is a kind of for measuring the atmospheric aerosol smog system of particulate matter particle diameter distribution in simulated environment |
| CN109916789A (en) * | 2019-01-29 | 2019-06-21 | 黑龙江科技大学 | A kind of low concentration small particle dust investigating based on electrostatic induction |
| CN111323350A (en) * | 2020-03-31 | 2020-06-23 | 罗克佳华科技集团股份有限公司 | High-precision particle detection sensor based on light scattering method and detection method thereof |
| CN111474090A (en) * | 2020-04-26 | 2020-07-31 | 张家港谱析传感科技有限公司 | Nondestructive online detection device and nondestructive online detection method for particle size and concentration of dust |
| CN111721733A (en) * | 2020-06-25 | 2020-09-29 | 重庆粟韬科技有限公司 | Automobile exhaust detection device and method based on double-idling method |
| CN112098606A (en) * | 2020-09-22 | 2020-12-18 | 佛山市龙生光启科技有限公司 | Vehicle-mounted fuel waste gas detection system |
| EP4155711A1 (en) * | 2021-09-24 | 2023-03-29 | Kidde Technologies, Inc. | Omni-directional particulate extraction inlet |
| CN114486404A (en) * | 2022-01-29 | 2022-05-13 | 江苏省环境监测中心 | Constant-speed sampling method for directly measuring waste gas particulate matters of fixed pollution source |
| CN114544450A (en) * | 2022-02-23 | 2022-05-27 | 清控(江苏)系统有限公司 | Waste gas on-line treatment monitoring system |
| CN114324098A (en) * | 2022-03-10 | 2022-04-12 | 南京波瑞自动化科技有限公司 | Double-light-path laser forward scattering particulate matter concentration measuring device |
| CN217111958U (en) * | 2022-04-19 | 2022-08-02 | 山东鸣川汽车集团有限公司 | Air inlet particle sensor probe |
| CN114894686A (en) * | 2022-05-10 | 2022-08-12 | 中国矿业大学 | Real-time detection device and detection method for concentration and components of air particulate matters |
| CN115561134A (en) * | 2022-09-23 | 2023-01-03 | 杭州电子科技大学 | Detection sensor for measuring concentration of oil smoke particles based on light scattering method |
Non-Patent Citations (4)
| Title |
|---|
| BEATRICE CASTELLANI 等: ""Comparative Analysis of Monitoring Devices for Particulate Content in Exhaust Gases"", 《SUSTAINABILITY》, vol. 06, no. 07, pages 4287 - 4307 * |
| XINGWEI SONG 等: ""A novel co-treatment scheme for waste motor oil and low rank coal slime: Waste dispose waste"", 《FEUL》, pages 120275 * |
| 王锦仁 等: ""光电传感器在气体浓度测量中的应用"", 《集成电路应用》, vol. 39, no. 03, pages 130 - 131 * |
| 胡玲: ""火电厂烟尘控制技术及监测实例解析"", 《山东工业技术》, pages 142 - 143 * |
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