CN111999356A - Air collection device and monitoring factor cross interference calculation method - Google Patents
Air collection device and monitoring factor cross interference calculation method Download PDFInfo
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- CN111999356A CN111999356A CN202010803151.6A CN202010803151A CN111999356A CN 111999356 A CN111999356 A CN 111999356A CN 202010803151 A CN202010803151 A CN 202010803151A CN 111999356 A CN111999356 A CN 111999356A
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Abstract
The invention discloses a monitoring factor cross interference calculation method, which comprises the following steps: a. collecting an air sample by using the gas collecting device; b. reading the values of SO2, NO2, O3 and CO electrochemical sensors in the gas respectively by using an MCU (microprogrammed control Unit), namely VALso2, VALno2, VALo3 and VALco; c. setting the real contents of SO2, NO2, O3 and CO in the currently measured gas as Xso2, Xno2, Xo3 and Xco respectively, and using a cross interference coefficient table to list an equation; d. in the equation set in the step c, VALso2, VALno2, VALo3 and VALco are measured values and are known terms, SO the above equations can be used for solving the values of Xso2, Xno2, Xo3 and Xco by a vanishing method or a determinant method, and the four values are real readings of SO2, NO2, O3 and Co in the ambient air; the invention monitors the environmental air gaseous pollutants SO2, NO2, O3 and CO by an electrochemical method, performs certain data operation, eliminates the mutual interference of the four gases, performs certain correction and ensures the accuracy of monitoring data.
Description
Technical Field
The invention belongs to the technical field of environmental atmosphere monitoring data correction, and particularly relates to an air collecting device and a monitoring factor cross interference calculation method.
Background
The gaseous pollutants SO2, NO2, O3 and CO in the ambient air are generally monitored by using a chemiluminescence method, an ultraviolet fluorescence method, an ultraviolet absorption method, a non-dispersive infrared absorption method or a gas filtering related infrared absorption method respectively, and the methods do not generate mutual interference when monitoring two or more than two kinds of pollutants, but instruments manufactured by using the methods are expensive and have high monitoring cost. When the gaseous pollutants in the ambient air are monitored, an electrochemical method is adopted, an instrument is manufactured by the method, the price is relatively low, but positive and negative interferences of two or more gases are possibly introduced, so that the measurement result of each gas is inaccurate, and misjudgment is generated.
Disclosure of Invention
The invention provides an air collecting device and a monitoring factor cross interference calculation method in order to overcome the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a gas collecting device comprises an installation box, a first connecting pipe arranged at the top of the installation box and a connecting disc arranged at the top of the first connecting pipe, wherein a plurality of gas transmission cavities are arranged on the connecting disc in a circumferential mode, a first baffle is arranged in each gas transmission cavity, a second connecting pipe is arranged in the installation box, a gas storage tank is arranged at the bottom of each second connecting pipe, the side wall of each second connecting pipe is made of elastic materials, and a first driving motor used for extruding the side wall of each second connecting pipe is arranged in the installation box; and a wind vane is arranged at the top of the connecting disc, and when the wind vane rotates, the gas transmission cavity at the tail end of the wind vane is opened.
A first rotating roller is arranged on the inner wall of the gas transmission cavity, first connecting shafts are respectively arranged at two ends of the first rotating roller, a first connecting groove matched with the first connecting shafts is arranged on the inner wall of the gas transmission cavity, and the first baffle is arranged at the bottom of the first rotating roller; the gas transmission cavity top is equipped with first movable groove, be equipped with first movable block in the first movable groove, be equipped with first mounting groove on the first movable block, be equipped with in the first mounting groove with first commentaries on classics roller matched with fixed roll.
A first movable cavity is formed in the connecting disc, a first connecting rod penetrates through the first movable cavity, the vane is arranged at the top of the first connecting rod, and a rotating wheel is arranged at the bottom of the first connecting rod; the first movable groove top is equipped with the second movable groove, be equipped with on the second movable groove lateral wall with the communicating first chamber that leads to in first movable chamber, first lead to the intracavity wear to be equipped with runner matched with first push rod, work as first push rod down when the second movable inslot removes, first movable block up moves.
A second movable cavity is arranged on the inner wall of the first through cavity, a limiting block matched with the second movable cavity is arranged on the first push rod, a first reset spring is arranged on the limiting block, and a lug is arranged on the rotating wheel; a first connecting rope is arranged at the top of the first movable block and fixedly connected to the top of the second movable groove; the first sliding block is arranged on the side wall of the first movable block, a first sliding groove matched with the first sliding block is formed in the inner wall of the first movable groove, a third movable groove is formed in the bottom of the first sliding groove, a second connecting rod is arranged at the bottom of the second sliding block, and transmission teeth matched with the first connecting shaft are arranged at the bottom of the second connecting rod.
The gas transmission cavity is internally provided with a stop block, a second stop plate is rotatably connected onto the stop block, a first through groove matched with the second stop plate is formed in the top of the gas transmission cavity, a groove matched with the second stop plate is formed in the top of the first through groove, a fourth movable groove communicated with the groove is formed in the connecting disc, a first connecting ring is arranged in the fourth movable groove, a plurality of sleeves are arranged on the first connecting ring, a second connecting rope is arranged on the second stop plate, and one end of the second connecting rope is wound on the sleeves.
The improved structure is characterized in that a fifth movable groove is formed in one side of the fourth movable groove, a second movable block is arranged in the fifth movable groove, a transmission plate matched with the sleeve is arranged on the second movable block, a first connecting spring is arranged on the side wall of the other side of the second movable block, and a second driving motor used for driving the second movable block to move is arranged on the connecting disc.
The connecting plate is provided with a sixth movable groove, a transmission ring is arranged in the sixth movable groove, the second driving motor is arranged in the transmission ring, the output shaft of the second driving motor is provided with a first transmission wheel matched with the transmission ring, the connecting plate is provided with a second connecting shaft, the second connecting shaft is provided with a second transmission wheel matched with the transmission ring, the second transmission wheel is provided with an annular groove, the second movable block is provided with a third connecting rope, and one end of the third connecting rope is wound in the annular groove.
A third driving wheel is arranged on an output shaft of the first driving motor, a third connecting shaft is arranged on the third driving wheel, a cam is arranged on the third connecting shaft, a seventh movable groove is formed in the inner wall of the installation box, a movable plate is arranged in the seventh movable groove, a push plate matched with the cam is arranged on the movable plate, a second reset spring is arranged on the inner wall of the seventh movable groove, an eighth movable groove is formed in the inner wall of the installation box, a third movable block is arranged in the eighth movable groove, a first through hole is formed in the third movable block, and a fourth connecting shaft matched with the first through hole is arranged on the side wall of the air storage tank; when the third movable block moves to the bottom of the eighth movable groove, the first driving motor and the fourth connecting shaft form transmission fit.
First through-hole both sides are equipped with third movable chamber respectively, the fixed block is worn to be equipped with in the third movable chamber, be equipped with second connecting spring on the fixed block lateral wall, third movable chamber top is equipped with fourth movable chamber, be equipped with the ejector pad in the fourth movable chamber, be equipped with third connecting spring on the ejector pad, the ejector pad bottom is equipped with the cambered surface, third movable chamber bottom is equipped with the second and leads to the chamber, be equipped with fifth movable chamber on the second logical intracavity wall, wear to be equipped with the second push rod in the second logical chamber, be equipped with the limiting plate on the second push rod, the install bin bottom is equipped with electric push rod, electric push rod piston rod is worn to locate in the eighth movable groove.
A monitoring factor cross interference calculation method comprises the following steps:
a. collecting an air sample by using the gas collecting device;
b. reading the values of SO2, NO2, O3 and CO electrochemical sensors in the gas respectively by using an MCU (microprogrammed control Unit), namely VALso2, VALno2, VALo3 and VALco;
c. assuming that the true contents of SO2, NO2, O3, and CO in the currently measured gas are Xso2, Xno2, Xo3, Xco, respectively, using a cross-interference coefficient table, the equations are tabulated:
Xso2 x Pso2so2 + Xno2 x Pno2so2 + Xo3 x Po3so2 + Xco x Pcoso2 = VALso2；
Xso2 x Pso2no2 + Xno2 x Pno2no2 + Xo3 x Po3no2 + Xco x Pcono2 = VALno2；
Xso2 x Pso2o3 + Xno2 x Pno2o3 + Xo3 x Po3o3 + Xco x Pcoo3 = VALo3；
Xso2 x Pso2co + Xno2 x Pno2co + Xo3 x Po3co + Xco x Pcoco = VALco；
d. in the equation set in step c, VALso2, VALso2, VALo3 and VALco are measured values and are known terms, SO the above equations can be used to calculate the values of Xso2, Xno2, Xo3 and Xco by a vanishing method or a determinant method, and the four values are real readings of SO2, NO2, O3 and Co in the ambient air.
The invention has the following advantages: the method is characterized in that the environmental air gaseous pollutants SO2, NO2, O3 and CO are monitored by an electrochemical method, certain data operation is carried out, the mutual interference of the four gases is eliminated, a certain degree of correction is carried out, and the accuracy of monitoring data is ensured.
Drawings
Fig. 1 is a schematic diagram of an MCU in the monitoring factor cross interference calculation method of the present application.
Fig. 2 is a cross interference coefficient table in a monitoring factor cross interference calculation method according to the present invention.
FIG. 3 is a schematic view of the structure of the gas collecting device of the present invention.
FIG. 4 is a front view of the gas collection device of the present invention.
Fig. 5 is a cross-sectional view taken along a-a in fig. 4.
Fig. 6 is an enlarged view of a portion a in fig. 5.
Fig. 7 is an enlarged view of fig. 5 at B.
Fig. 8 is a cross-sectional view taken along line B-B of fig. 4.
Fig. 9 is an enlarged view of fig. 8 at C.
Fig. 10 is a cross-sectional view taken along G-G in fig. 4.
Fig. 11 is an enlarged view of fig. 10 at D.
Fig. 12 is a cross-sectional view taken along H-H in fig. 4.
Fig. 13 is an enlarged view of fig. 12 at E.
Fig. 14 is an enlarged view of fig. 12 at F.
FIG. 15 is a right side view of the gas collection device of the present invention.
Fig. 16 is a cross-sectional view taken along line C-C of fig. 15.
Fig. 17 is an enlarged view at G in fig. 16.
Fig. 18 is an enlarged view of fig. 16 at H.
Fig. 19 is a cross-sectional view taken along line D-D in fig. 15.
Fig. 20 is an enlarged view at I in fig. 19.
Fig. 21 is a cross-sectional view taken along F-F in fig. 15.
Fig. 22 is an enlarged view at J in fig. 21.
Fig. 23 is a cross-sectional view taken along line I-I in fig. 15.
Fig. 24 is an enlarged view at K in fig. 23.
Detailed Description
A monitoring factor cross interference calculation method comprises the following steps:
a. collecting an air sample by using a gas collecting device;
b. the values of the four gas (SO 2, NO2, O3 and CO) electrochemical sensors were read by the MCU in fig. 1 as VALso2, VALno2, VALo3, VALco, respectively;
c. assuming that the actual contents of SO2, NO2, O3, and CO in the currently measured gas are Xso2, Xno2, Xo3, Xco, respectively, the equations are tabulated in the cross-talk coefficient table of fig. 2:
Xso2 x Pso2so2 + Xno2 x Pno2so2 + Xo3 x Po3so2 + Xco x Pcoso2 = VALso2；
Xso2 x Pso2no2 + Xno2 x Pno2no2 + Xo3 x Po3no2 + Xco x Pcono2 = VALno2；
Xso2 x Pso2o3 + Xno2 x Pno2o3 + Xo3 x Po3o3 + Xco x Pcoo3 = VALo3；
Xso2 x Pso2co + Xno2 x Pno2co + Xo3 x Po3co + Xco x Pcoco = VALco；
wherein:
pso2so 2: sulfur dioxide has a coefficient of influence of 1
Pno2so 2: influence coefficient of nitrogen dioxide on sulfur dioxide
Po3so 2: influence coefficient of ozone on sulfur dioxide
Pcoso 2: coefficient of influence of carbon monoxide on sulfur dioxide
Pso2no 2: influence coefficient of sulfur dioxide on nitrogen dioxide
Pno2no 2: the influence coefficient of nitrogen dioxide itself is 1
Po3no 2: coefficient of influence of ozone on nitrogen dioxide
Pcono 2: coefficient of influence of carbon monoxide on nitrogen dioxide
Pso2o 3: influence coefficient of sulfur dioxide on ozone
Pno2o 3: influence coefficient of nitrogen dioxide on ozone
Po3o 3: the influence coefficient of ozone itself is 1
Pcoo 3: coefficient of influence of carbon monoxide on ozone
Pso2 co: influence coefficient of sulfur dioxide on carbon monoxide
Pno2 co: influence coefficient of nitrogen dioxide on carbon monoxide
Po3 co: coefficient of influence of ozone on carbon monoxide
Pcoco: the influence coefficient of carbon monoxide is 1;
d. in the equation set of step c, wherein the table values in fig. 2 are known terms, VALso2, VALso2, VALo3 and VALco are measured values and also known terms, the above equations can be used to find the values of Xso2, Xno2, Xo3 and Xco by the elimination method or the determinant method, and the four values are the true readings of SO2, NO2, O3 and Co in the ambient air.
As shown in fig. 3 to 24, one of the above gas collecting devices includes an installation box 1, a first connection pipe 2 disposed at the top of the installation box 1, and a connection disc 3 disposed at the top of the first connection pipe 2, wherein the connection disc 3 is provided with a plurality of gas transmission cavities 31, the plurality of gas transmission cavities 31 are circumferentially disposed on the connection disc 3, all the gas transmission cavities are communicated, the gas transmission cavities are communicated with the first connection pipe, and the gas transmission cavities are uniformly distributed so as to collect gas flows from all directions; a first baffle 381 is arranged in the air conveying cavity 31, a second connecting pipe 11 is arranged in the installation box 1, an air storage tank 12 is arranged at the bottom of the second connecting pipe 11, the side wall of the second connecting pipe 11 is made of rubber, and a first driving motor 110 used for extruding the side wall of the second connecting pipe 11 is arranged in the installation box 1; the top of the connecting disc 3 is provided with a wind vane 6, and when the wind vane 6 rotates, an air delivery cavity 31 at the tail end of the wind vane 6 is opened: the mounting box is mounted at the top of the air station, the mounting box is buried at the top of the air station, the first connecting pipe and the connecting disc are exposed outside, the mounting box is arranged at the top of the MCU, and the gas storage tank can directly place gas flow into the MCU for detection after collecting the gas in the mounting box; the gas collecting device samples gas after a specified period of time so as to measure the harmful gas components in the air holes; when the air collecting device is used for collecting air, the wind vane rotates under the action of air flow, the current wind direction is indicated by the wind vane, after the wind direction is indicated by the wind vane, the air transmission cavity opposite to the tail end of the wind vane is in an open state, the open air transmission cavity is just opposite to the wind direction, flowing air flow enters the air transmission cavity, enters the installation box through the first connecting pipe and is collected; after the gas transmission cavity is opened, the first driving motor works, the side wall of the second connecting pipe is extruded under the action of the first driving motor, the side wall of the second connecting pipe is reset under the action of self elasticity after being deformed inwards, suction force is generated in the second connecting pipe, the airflow entering the gas transmission cavity is sucked into the second connecting pipe, and when the first driving motor extrudes the second connecting pipe again, the second connecting pipe is deformed to extrude the airflow in the second connecting pipe into the gas storage tank and collect the airflow so as to perform sampling detection on the air; control through opening and close of wind vane to appointed gas transmission chamber, avoid the air current to directly flow out from the gas transmission intracavity of the other end after getting into from the gas transmission intracavity of one end to do the collection to the air current through the second connecting pipe, collect the air current in the gas holder.
The top of the mounting box is provided with a second connecting ring 13, the top of the second connecting pipe is provided with a third connecting ring matched with the second connecting ring, the inner wall of the third connecting ring is rotatably connected with a first sealing plate 11, the second connecting ring is connected with the third connecting ring through threads, the top surface of the first sealing plate is abutted against the second connecting ring, the first sealing plate can only turn over downwards and cannot turn over upwards under the blocking of the second connecting ring, and the moving direction of the airflow in the second connecting pipe is controlled; the top of the gas storage tank is provided with a convex ring 122, the inner wall of the gas storage tank is rotatably connected with a second sealing plate 121, and the top surface of the second sealing plate is in contact with the convex ring, so that the second sealing plate can only turn downwards and control the flowing direction of the airflow; the first sealing plate and the second sealing plate are respectively two so as to seal the second connecting ring and the air storage tank; when the first driving motor extrudes the side wall of the first connecting pipe, the air flow in the first connecting pipe pushes the second sealing plate to turn downwards, the air flow in the second connecting pipe is sent into the air storage tank, and when the side wall of the second connecting pipe resets under the action of self elasticity, the first sealing plate is opened, the air flow in the first connecting pipe is sucked into the second connecting pipe, and the air flow entering the air transmission cavity is collected.
A first rotating roller 38 is arranged on the inner wall of the air transmission cavity 31, first connecting shafts 382 are respectively arranged at two ends of the first rotating roller 38, a first connecting groove matched with the first connecting shafts 382 is arranged on the inner wall of the air transmission cavity 31, and the first baffle 381 is arranged at the bottom of the first rotating roller 38; a first movable groove 310 is arranged at the top of the air conveying cavity 31, a first movable block 39 is arranged in the first movable groove 310, a first installation groove 391 is arranged on the first movable block 39, and a fixed roller 392 matched with the first rotating roller 38 is arranged in the first installation groove 391; when the wind vane does not rotate to the position of the appointed air transmission cavity, the fixed roller is in contact with the first rotating roller, the fixed roller has a limiting effect on the first rotating roller, so that the first rotating roller cannot rotate, the air transmission cavity is closed by the first baffle, only one air transmission cavity is opened on the connecting disc, and air flow is prevented from entering from one air transmission cavity and being directly discharged from the other air transmission cavity so as to be collected; when the wind vane indicates the wind direction, the first movable block at the corresponding position moves upwards, the fixed roller is separated from the first rotating roller to enable the first rotating roller to rotate freely, the first baffle is pushed under the action of wind, and the first baffle is turned upwards to open the air conveying cavity so as to collect the air flow.
A first movable cavity is formed in the connecting disc 3, a first connecting rod 340 penetrates through the first movable cavity, the wind vane 6 is arranged at the top of the first connecting rod 340, and a rotating wheel 3401 is arranged at the bottom of the first connecting rod 340; a second movable groove 390 is arranged at the top of the first movable groove 310, a first through cavity communicated with the first movable cavity is arranged on the side wall of the second movable groove 390, a first push rod 3910 matched with the rotating wheel 3401 penetrates through the first through cavity, and when the first push rod 3910 moves towards the second movable groove, the first movable block 39 moves upwards; the wind vane rotates the back under the air current effect, the wind vane drives the runner and rotates, promote first push rod when the runner rotates and remove, after the wind vane position is confirmed, the first push rod of relevant position department removes toward the second movable slot, first movable block up moves when first push rod removes, the fixed roll breaks away from the contact with first commentaries on classics roller, but first commentaries on classics roller loses spacing back free rotation, thereby make the gas transmission chamber automatic open, the air current flows toward the gas transmission intracavity automatically, collect the air current.
The first connecting rod top is equipped with two first connecting plates 3403, be equipped with first screw hole on the first connecting plate, the vane is located between two first connecting plates, be equipped with the second screw hole on the vane, first threaded hole wears to be equipped with screw 3404, screw one end is equipped with nut 3405, under screw and nut cooperation, fix the vane on the first connecting rod, accomplish the installation of vane, also the mode that can pass through the dismantlement screw is changed the vane simultaneously, it is more convenient to make the change of vane.
A second movable cavity 3920 is arranged on the inner wall of the first through cavity, a limiting block 39101 matched with the second movable cavity 3920 is arranged on the first push rod 3910, a first return spring 39102 is arranged on the limiting block 39101, a lug 3402 is arranged on the rotating wheel 3401, and the lug is aligned with the tail of the wind vane; a first connecting rope 393 is arranged at the top of the first movable block 39, and the first connecting rope 393 is fixedly connected to the top of the second movable groove 390; a first sliding block 394 is arranged on the side wall of the first movable block 39, a first sliding groove 360 matched with the first sliding block 394 is arranged on the inner wall of the first movable groove 310, a third movable groove is arranged at the bottom of the first sliding groove 360, a second connecting rod 395 is arranged at the bottom of the second sliding block 394, and a transmission gear 396 matched with the first connecting shaft 382 is arranged at the bottom of the second connecting rod 395; when the wind vane rotates, the wind vane drives the rotating wheel to rotate together, when the position of the wind vane is determined, the lug on the rotating wheel rotates to one end of the corresponding first push rod, the lug pushes the first push rod to move, the first push rod moves towards the second movable groove, one end of the first push rod is contacted with the first connecting rope, the middle part of the first connecting rope is pushed towards one end of the second movable groove under the action of the first push rod, the first connecting rope pulls the first movable block to move upwards, the first movable block drives the first sliding block to move, the second connecting rod moves together with the first sliding block, the transmission teeth at the bottom of the second connecting rod are contacted with the first connecting shaft, the first connecting shaft is driven to rotate under the action of the transmission teeth, so that the first baffle is in an open state when the first movable block moves upwards, and airflow can enter the air conveying cavity more easily; after the air current is collected, the wind direction changes, and the wind vane changes and rotates along with the wind direction, and first push rod resets under the effect of first reset spring, and first movable block moves down under the action of gravity, and the driving tooth on the second connecting rod contacts with first connecting axle, makes first connecting axle rotate along with the removal of first movable block under the driving tooth effect, and first baffle is in vertical state when guaranteeing that fixed roll contacts with first commentaries on classics roller.
A stop block 321 is arranged in the gas transmission cavity 31, a second stop plate 32 is rotatably connected to the stop block 321, a first through groove matched with the second stop plate 32 is formed in the top of the gas transmission cavity 31, a groove matched with the second stop plate 32 is formed in the top of the first through groove, a fourth movable groove communicated with the groove is formed in the connecting disc 3, a first connecting ring 33 is arranged in the fourth movable groove, a plurality of sleeves 331 are arranged on the first connecting ring 33, a second connecting rope 322 is arranged on the second stop plate 32, and one end of the second connecting rope 322 is wound on the sleeves 331; when the gas collecting device is not used, the second baffle and the stop block are positioned in the gas transmission cavity, and the gas transmission cavity is sealed by the second baffle, so that rainwater or strong wind carrying impurities can be prevented from entering the gas transmission cavity in severe weather; when the gas collecting device is used, the sleeve rotates to pull the second connecting rope, the second connecting rope pulls the second baffle to move upwards, the second baffle is pulled out from the groove, after the second baffle is pulled out from the first through groove completely, the baffle is still in the first through groove, the second connecting rope continues to pull the second baffle to move, the second connecting rope provides the second baffle with an upward force of inclination, the second baffle rotates around the connecting point after being separated from the first through groove, the second baffle is poured into the groove, the groove is utilized to collect the second baffle, the baffle is fixed in the first through groove at the moment, the phenomenon that strong wind directly blows on the second baffle to cause large wind resistance is avoided, and the second baffle is protected.
A fifth movable groove 35 is formed in one side of the fourth movable groove, a second movable block 34 is arranged in the fifth movable groove 35, a transmission plate 341 which is matched with the sleeve 331 is arranged on the second movable block 34, a first connecting spring 342 is arranged on the side wall of the other side of the second movable block 34, and a second driving motor 3401 which is used for driving the second movable block 34 to move is arranged on the connecting disc 3; when the collecting device is used for collecting gas, the second driving motor drives the second movable block to move, the second movable block moves towards the middle of the connecting disc, the second movable block drives the transmission plate to move, the bottom surface of the transmission plate is in contact with the sleeve, the sleeve is driven to rotate under the action of the transmission plate, the second connecting rope is wound on the sleeve, so that the second baffle is pulled to move upwards under the action of the second connecting rope, when the second baffle inclines towards the groove, one end of the second baffle is positioned on the sleeve, and the sleeve is positioned in the groove in an inclined state; after the completion is collected to the air current, first connecting spring promotes the second movable block and moves back, the second movable block drives the driving plate and removes, the driving plate drives the sleeve pipe and rotates, driving plate one end contacts with the second baffle bottom surface simultaneously, promote the second baffle rotation under the driving plate effect, after the second movable block removes to fifth activity groove one end, the driving plate promotes the second baffle and overturns to vertical state on, dog and second baffle drop to the gas transmission intracavity under the action of gravity, utilize second baffle and dog to seal the gas transmission chamber, the reduction causes the damage because of extreme weather to the device.
A sixth movable groove is formed in the connecting disc 3, a transmission ring 36 is arranged in the sixth movable groove, the second driving motor 320 is arranged in the transmission ring 36, a first driving wheel 3201 matched with the transmission ring 36 is arranged on an output shaft of the second driving motor 320, a second connecting shaft 371 is arranged on the connecting disc 3, a second driving wheel 37 matched with the transmission ring 36 is arranged on the second connecting shaft 371, an annular groove is formed in the second driving wheel 37, a third connecting rope 372 is arranged on the second movable block 34, and one end of the third connecting rope 372 is wound in the annular groove; an equipment cavity 330 is arranged on the connecting disc, a cover plate is arranged at the top of the equipment cavity, the second driving motor is arranged in the equipment cavity, and the equipment cavity is used for protecting the second driving motor; when the collecting device is used, the second driving motor drives the first driving wheel to rotate, the first driving wheel drives the driving ring to rotate, the driving ring drives the second driving wheel to rotate, the second driving wheel winds the third connecting rope in the annular groove, the third connecting rope pulls the second movable block to move, and the second movable block drives the sleeve to rotate so as to pull the second baffle out of the gas transmission cavity.
A second through hole 323 is formed in the second baffle, a third through hole matched with the second through hole is formed in the baffle, and a fourth through hole matched with the third through hole is formed in the bottom of the gas transmission cavity; a top cover 5 is arranged on the first connecting plate, a plurality of supporting rods are arranged at the bottom of the ejector rod, a second connecting groove matched with the supporting rods is arranged on the connecting plate, the first connecting rod penetrates through the top cover, a guide block 51 is arranged on the top cover, and the first connecting rod penetrates through the guide block; the guide block and the top cover have a protection effect on parts on the connecting disc, rainwater is prevented from being directly impacted on the surface of the connecting disc, and the service life of the collecting device is prolonged; rainwater that flows to first logical groove department is amassed at second baffle top, and in the rainwater at second baffle top entered into the second through-hole, utilize second through-hole, third through-hole and fourth through-hole to discharge the rainwater, avoid the rainwater long-pending to stay to ponding on the quick discharge connection pad.
A third driving wheel 1101 is arranged on an output shaft of the first driving motor 110, a third connecting shaft 1102 is arranged on the third driving wheel 1101, a cam 1103 is arranged on the third connecting shaft 1102, a seventh movable groove 17 is arranged on the inner wall of the installation box 1, a movable plate 16 is arranged in the seventh movable groove 17, a push plate 161 matched with the cam 1103 is arranged on the movable plate 16, a second reset spring is arranged on the inner wall of the seventh movable groove 17, an eighth movable groove 130 is arranged on the inner wall of the installation box 1, a third movable block 14 is arranged in the eighth movable groove 130, a first through hole is arranged on the third movable block 14, a fourth connecting shaft 123 matched with the first through hole is arranged on the side wall of the air storage tank 11, and a second through groove 120 is arranged at the bottom of the installation box; when the third movable block 14 moves to the bottom of the eighth movable groove 130, the first driving motor 110 and the fourth connecting shaft 123 form transmission fit; after the gas transmission cavity is opened, the first driving motor drives the third driving wheel to rotate, the third driving wheel drives the third connecting shaft to rotate, the cam impacts the push plate discontinuously, so that the push plate extrudes the second connecting pipe, and the second connecting pipe deforms to suck the gas flow in the first connecting pipe into the gas storage tank and collect the gas flow; when the air flow in the air storage tank is collected to a specified amount, the third movable block moves downwards, the third movable block moves to the bottom of the eighth movable tank, the first driving motor and the fourth connecting shaft form transmission fit, the first driving motor drives the fourth connecting shaft to rotate, the fourth connecting shaft drives the air storage tank to rotate 180 degrees, the top surface of the air storage tank rotates to the bottom, the air storage tank is connected with the detection equipment, and the gas in the air storage tank is detected.
A third movable cavity is respectively arranged on two sides of the first through hole, a fixed block 141 penetrates through the third movable cavity, a second connecting spring is arranged on the side wall of the fixed block 141, a fourth movable cavity is arranged at the top of the third movable cavity, a push block 142 is arranged in the fourth movable cavity, a third connecting spring 143 is arranged on the push block 142, an arc surface is arranged at the bottom of the push block 142, a second through cavity is arranged at the bottom of the third movable cavity, a fifth movable cavity is arranged on the inner wall of the second through cavity, a second push rod 144 penetrates through the second through cavity, a limiting plate 145 is arranged on the second push rod 144, an electric push rod 15 is arranged at the bottom of the installation box 1, and a piston rod of the electric push rod 15 penetrates through the eighth movable groove 130; when the third movable block is positioned at the top of the eighth movable groove, the push block is positioned at one side of the fixed block, the fixed block abuts against the side wall of the fourth connecting shaft, the fourth connecting shaft is fixed, the gas storage tank is fixed at a vertical position, and the connecting effect of the gas storage tank and the second connecting pipe is ensured; when the air flow in the air storage tank is collected, the electric push rod drives the piston rod to move downwards, the third movable block moves to the bottom of the eighth movable groove, the second push rod abuts against the bottom of the eighth movable groove, the second push rod moves upwards to push the push block to move upwards, the push block is moved away from one side of the fixed block, the second connecting spring pulls the fixed block to move towards the third movable cavity, the fourth connecting shaft is in contact with the fixed block after the fixed block enters the third movable cavity, and the fourth connecting shaft can rotate randomly so as to drive the air storage tank to rotate under the action of the first driving motor; after gas detection in the gas holder is accomplished, first driving motor drive gas holder rotates to normal condition, and the electric push rod promotes the third movable block and up moves, and the second push rod does not contact with eighth movable slot bottom surface, and third connecting spring promotes the ejector pad and down moves, sets up at the cambered surface, makes the ejector pad remove to fixed block one side smoothly, promotes the fixed block and supports on the fourth connecting axle, fixes the gas holder, avoids the gas holder upset.
A fifth driving wheel 18 and a sixth driving wheel 19 are arranged on the inner wall of the mounting box, the sixth driving wheel is arranged on one side of the bottom of the eighth movable groove, the fifth driving wheel is in transmission fit with the sixth driving wheel, a fourth connecting shaft is provided with a fourth driving wheel 124 matched with the sixth driving wheel, and it is worth explaining that two groups of first driving motors are respectively arranged on two sides of the mounting box, and one group of sixth driving wheels is only arranged on one side of the eighth movable groove; the third driving wheel is in transmission fit with the fifth driving wheel, the fifth driving wheel is driven to rotate when the first driving motor drives the third driving wheel to rotate, after the third movable block moves to the bottom of the eighth movable groove, the fourth driving wheel is matched with the sixth driving wheel, and the sixth driving wheel drives the fourth driving wheel to rotate, so that the air storage tank rotates in the installation box, the material storage tank rotates 180 degrees, and air flow in the material storage tank is guided into the detection equipment to be detected.
A second mounting groove is formed in the first connecting pipe, an opening is formed in the inner side wall of the second mounting groove, a mounting disc 21 is arranged in the second mounting groove, a screen 211 is arranged on the mounting disc, a base 4 is arranged on the mounting box, a ninth movable groove is formed in the base, a second rotary roller 43 is arranged in the ninth movable groove, a conveying belt 42 is wound on the second rotary roller, the height of the conveying belt is lower than the depth of the ninth movable groove, and the top surface of the conveying belt is flush with the bottom surface of the opening; a third connecting groove is formed in the inner wall of the ninth movable groove, a fifth connecting shaft 431 matched with the third connecting groove is arranged on the second rotary roller, a second connecting plate 41 is arranged on the base, a sixth movable cavity 411 communicated with the third connecting groove is formed in the second connecting plate, a third rotary roller 44 is arranged in the sixth movable cavity, the third rotary roller is connected with the fifth connecting shaft through a synchronous belt 45, the third rotary roller is arranged in the sixth movable cavity in a penetrating mode, a third connecting plate 441 is arranged at one end of the third rotary roller, and a handle 442 is arranged on the third connecting plate; when the screen cloth is installed, the screen cloth is placed on the mounting disc, the mounting disc is placed on the conveying belt, the ninth movable groove is used for positioning the mounting disc, the handle is rotated, the third rotating roller drives the second rotating roller to rotate, the conveying belt drives the mounting disc to move forwards, the mounting disc is pushed into the second mounting groove from the opening, the mounting of the screen cloth is completed, and the inconvenience of screen cloth replacement caused by the installation of the mounting box and the arrangement of the connecting disc is avoided.
Claims (10)
1. The utility model provides a gas collecting device, includes install bin (1), locates first connecting pipe (2) at install bin (1) top and locate connection pad (3) at first connecting pipe (2) top, its characterized in that: the connecting disc (3) is provided with a plurality of air transmission cavities (31), the air transmission cavities (31) are circumferentially arranged on the connecting disc (3), a first baffle (381) is arranged in each air transmission cavity (31), a second connecting pipe (11) is arranged in the mounting box (1), an air storage tank (12) is arranged at the bottom of each second connecting pipe (11), the side wall of each second connecting pipe (11) is made of an elastic material, and a first driving motor (110) for extruding the side wall of each second connecting pipe (11) is arranged in the mounting box (1); the top of the connecting disc (3) is provided with a wind vane (6), and when the wind vane (6) rotates, an air conveying cavity (31) at the tail end of the wind vane (6) is opened.
2. A gas collection apparatus as recited in claim 1, wherein: a first rotating roller (38) is arranged on the inner wall of the air transmission cavity (31), first connecting shafts (382) are respectively arranged at two ends of the first rotating roller (38), a first connecting groove matched with the first connecting shafts (382) is arranged on the inner wall of the air transmission cavity (31), and a first baffle plate (381) is arranged at the bottom of the first rotating roller (38); the top of the air conveying cavity (31) is provided with a first movable groove (310), a first movable block (39) is arranged in the first movable groove (310), a first mounting groove (391) is formed in the first movable block (39), and a fixed roller (392) matched with the first rotating roller (38) is arranged in the first mounting groove (391).
3. A gas collection apparatus as claimed in claim 2, wherein: a first movable cavity is formed in the connecting disc (3), a first connecting rod (340) penetrates through the first movable cavity, the wind vane (6) is arranged at the top of the first connecting rod (340), and a rotating wheel (3401) is arranged at the bottom of the first connecting rod (340); first activity groove (310) top is equipped with second activity groove (390), be equipped with on second activity groove (390) lateral wall with the communicating first logical chamber in first activity chamber, first logical intracavity wear to be equipped with runner (3401) matched with first push rod (3910), work as first push rod (3910) toward when the second activity inslot removed, first movable block (39) up-movement.
4. A gas collection device according to claim 3, wherein: a second movable cavity (3920) is arranged on the inner wall of the first through cavity, a limiting block (39101) matched with the second movable cavity (3920) is arranged on the first push rod (3910), a first return spring (39102) is arranged on the limiting block (39101), and a lug (3402) is arranged on the rotating wheel (3401); a first connecting rope (393) is arranged at the top of the first movable block (39), and the first connecting rope (393) is fixedly connected to the top of the second movable groove (390); be equipped with first slider (394) on first movable block (39) lateral wall, be equipped with on first activity groove (310) inner wall with first slider (394) matched with first spout (360), first spout (360) bottom is equipped with the third activity groove, second slider (394) bottom is equipped with second connecting rod (395), second connecting rod (395) bottom be equipped with first connecting shaft (382) matched with driving tooth (396).
5. A gas collection apparatus as recited in claim 1, wherein: the pneumatic connecting device is characterized in that a stop block (321) is arranged in the pneumatic cavity (31), a second baffle (32) is rotatably connected onto the stop block (321), a first through groove matched with the second baffle (32) is formed in the top of the pneumatic cavity (31), a groove matched with the second baffle (32) is formed in the top of the first through groove, a fourth movable groove communicated with the groove is formed in the connecting disc (3), a first connecting ring (33) is arranged in the fourth movable groove, a plurality of sleeves (331) are arranged on the first connecting ring (33), a second connecting rope (322) is arranged on the second baffle (32), and one end of the second connecting rope (322) is wound on the sleeves (331).
6. A gas collection apparatus according to claim 5, wherein: fourth activity groove one side is equipped with fifth activity groove (35), be equipped with second movable block (34) in fifth activity groove (35), be equipped with on second movable block (34) with sleeve pipe (331) matched with driving plate (341), be equipped with first connecting spring (342) on second movable block (34) opposite side lateral wall, be equipped with on connection pad (3) and be used for the drive second driving motor (3401) that second movable block (34) removed.
7. A gas collection apparatus according to claim 6, wherein: be equipped with the sixth activity groove on connection pad (3), be equipped with drive ring (36) in the sixth activity groove, second driving motor (320) are located in drive ring (36), be equipped with on second driving motor (320) output shaft with drive ring (36) matched with first drive wheel (3201), be equipped with second connecting axle (371) on connection pad (3), be equipped with on second connecting axle (371) with drive ring (36) matched with second drive wheel (37), be equipped with the annular on second drive wheel (37), it connects rope (372) to be equipped with the third on second movable block (34), third is connected rope (372) one end around locating in the annular.
8. A gas collection apparatus as recited in claim 1, wherein: a third driving wheel (1101) is arranged on an output shaft of the first driving motor (110), a third connecting shaft (1102) is arranged on the third driving wheel (1101), a cam (1103) is arranged on the third connecting shaft (1102), a seventh movable groove (17) is arranged on the inner wall of the installation box (1), a movable plate (16) is arranged in the seventh movable groove (17), a push plate (161) matched with the cam (1103) is arranged on the movable plate (16), a second return spring is arranged on the inner wall of the seventh movable groove (17), an eighth movable groove (130) is arranged on the inner wall of the installation box (1), a third movable block (14) is arranged in the eighth movable groove (130), a first through hole is formed in the third movable block (14), and a fourth connecting shaft (123) matched with the first through hole is arranged on the side wall of the air storage tank (11); when the third movable block (14) moves to the bottom of the eighth movable groove (130), the first driving motor (110) and the fourth connecting shaft (123) form transmission fit.
9. A gas collection apparatus as recited in claim 1, wherein: first through-hole both sides are equipped with third movable chamber respectively, fixed block (141) are worn to be equipped with in the third movable chamber, be equipped with second coupling spring on fixed block (141) lateral wall, third movable chamber top is equipped with fourth movable chamber, fourth movable chamber is equipped with ejector pad (142), be equipped with third coupling spring (143) on ejector pad (142), ejector pad (142) bottom is equipped with the cambered surface, third movable chamber bottom is equipped with the second and leads to the chamber, be equipped with fifth movable chamber on the second logical intracavity wall, wear to be equipped with second push rod (144) in the second through-hole, be equipped with limiting plate (145) on second push rod (144), install bin (1) bottom is equipped with electric push rod (15), electric push rod (15) piston rod is worn to locate in eighth movable groove (130).
10. A monitoring factor cross interference calculation method is characterized in that: the method comprises the following steps:
a. collecting an air sample using a gas collection device as claimed in any one of claims 1 to 9;
b. reading the values of SO2, NO2, O3 and CO electrochemical sensors in the gas respectively by using an MCU (microprogrammed control Unit), namely VALso2, VALno2, VALo3 and VALco;
c. assuming that the true contents of SO2, NO2, O3, and CO in the currently measured gas are Xso2, Xno2, Xo3, Xco, respectively, using a cross-interference coefficient table, the equations are tabulated:
Xso2 x Pso2so2 + Xno2 x Pno2so2 + Xo3 x Po3so2 + Xco x Pcoso2 = VALso2；
Xso2 x Pso2no2 + Xno2 x Pno2no2 + Xo3 x Po3no2 + Xco x Pcono2 = VALno2；
Xso2 x Pso2o3 + Xno2 x Pno2o3 + Xo3 x Po3o3 + Xco x Pcoo3 = VALo3；
Xso2 x Pso2co + Xno2 x Pno2co + Xo3 x Po3co + Xco x Pcoco = VALco；
d. in the equation set in step c, VALso2, VALso2, VALo3 and VALco are measured values and are known terms, SO the above equations can be used to calculate the values of Xso2, Xno2, Xo3 and Xco by a vanishing method or a determinant method, and the four values are real readings of SO2, NO2, O3 and Co in the ambient air.
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| CN202010803151.6A CN111999356B (en) | 2020-08-11 | 2020-08-11 | Air collection device and monitoring factor cross interference calculation method |
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| CN202010803151.6A CN111999356B (en) | 2020-08-11 | 2020-08-11 | Air collection device and monitoring factor cross interference calculation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115236147A (en) * | 2022-06-28 | 2022-10-25 | 浙江缘森生态环境科技有限公司 | Gas content monitoring device for automobile exhaust and using method |
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Denomination of invention: A method for calculating cross interference of air collection device and monitoring factors Effective date of registration: 20221202 Granted publication date: 20210709 Pledgee: Daoxu Sub-branch of Zhejiang Shangyu Rural Commercial Bank Co.,Ltd. Pledgor: ZHEJIANG SANQING ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Registration number: Y2022980024354 |