CN100498279C - Six-station automatic circulation and control method for atmosphere particle monitoring, and apparatus therefor - Google Patents
Six-station automatic circulation and control method for atmosphere particle monitoring, and apparatus therefor Download PDFInfo
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- CN100498279C CN100498279C CNB2005101002838A CN200510100283A CN100498279C CN 100498279 C CN100498279 C CN 100498279C CN B2005101002838 A CNB2005101002838 A CN B2005101002838A CN 200510100283 A CN200510100283 A CN 200510100283A CN 100498279 C CN100498279 C CN 100498279C
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Abstract
The invention relates to a six station working auto circulation and control method and apparatus of atmosphere environment granule automatic monitor based on weighting principle. The method divides the work of the atmosphere environment granule automatic monitor into six courses, freely positions the filter component for collecting the atmosphere granule on the rotating arm, and then it finishes the six courses on the six stations; the apparatus comprises a rotating arm, a filter component, a lift and rotating station apparatus of the arm and stations 1 to 6.
Description
Technical field
The present invention relates to the particle automatic monitoring technical of atmospheric environment, specifically is six station Automatic Cycle and control methods of atmosphere particle monitoring; The invention still further relates to the device of realizing described method.
Background technology
Same quasi-instrument on the domestic and international market has at present: the 240 type binary channels sampling thiefs of (1) Andersen company, (2) U.S. Rupprecht; The 1400a type atmosphere particulate matter sampler of Patashnick company, (3) the BAM1020 type beta-ray dust measuring instrument of API company, the atmosphere continuous sampling device of the 110B of the TH series that domestic (4) certain instrument company produces or the KC series of 150C (or A) air total suspended particles sampling thief and (5) certain Electronic Instruments Plant etc.
The measuring principle of above instrument is respectively: instrument (1) is gathered the quality of particle in the atmosphere and can be gathered PM2.5 and PM10 simultaneously with weighing principle.Instrument (2) is to utilize particle weight to change the natural frequency of filter membrane, is converted into the variation of particle quality by the variation of natural frequency.It can not gather PM2.5 and PM10 simultaneously, changes cutter and can gather PM10 or PM2.5 respectively.(3) be to utilize the quality of particle,, have the link of a conversion, can bring certain transformed error because weight method is different on measuring principle with directly to β radiation absorption situation judgement particle.Instrument (4) and (5) also are direct weight methods, are the samplings of single channel formula, can not gather PM10 and PM2.5 simultaneously.Use the instrument inefficiency of direct weight method principle at present, nearly all can not realize the robotization of entire work process.
Summary of the invention
The objective of the invention is to realize automatic sampling process problem at what existing weight method instrument existed, a kind of six station Automatic Cycle and control methods of atmosphere particle monitoring are provided, weight method is used for the continuous monitoring work that Atmospheric particulates PM10 and PM2.5 gather, makes particle sample, weigh, change filter membrane component, claim the filter membrane component gross weight, return and wait for the working cycle of sampling; Or the working cycle between the work of sample-weighing, realize robotization.
The present invention also aims to provide the device of realizing described method.
Six station Automatic Cycle of atmosphere particle monitoring of the present invention and control method are that six processes are resolved in the monitoring of Atmospheric particulates, realize respectively specifically comprising described six processes on six stations:
---the filter membrane component that will gather Atmospheric particulates freely is placed on the pivoted arm;
---pivoted arm drives filter membrane component and realizes the particle collection at station 1;
---pivoted arm drives filter membrane component and weighs at station 2 realization particles;
---pivoted arm drives filter membrane component and realizes the filter membrane component blanking at station 3;
---pivoted arm drives filter membrane component and realizes the filter membrane component material loading at station 4;
---pivoted arm drives filter membrane component and realizes that at station 5 new filter membrane component claims the particle gross weight;
---pivoted arm drives filter membrane component is waited for particle at station 6 sampling.
Among the present invention, the rotation of pivoted arm can be driven by stepper motor and realize.
The rotational angle of stepper motor and photoelectricity steady arm locating information can be determined the anchor point to each station of pivoted arm jointly.
The present invention can decide working cycle according to the situation of weighing of filter membrane component, for example, the function (general available have do not have overweightly to differentiate) that also has filtering particle at filter membrane, can not cause influence not have under the impaired situation yet, adopt the workflow of station 1-station 2-station 1-station 2 to realize working cycle regime flow; Or,
Lost the function of filtering particle at filter membrane, or caused influence, or under the situation about having damaged, adopted the workflow of station 3-station 4-station 5-station 6-station 1-station 2-station 1-station 2 to realize working cycle regime flow.
The present invention is resolved into six subprocess with the course of work of monitor, and arranges different operations according to action on each station, realizes that the particle of PM10 and PM2.5 is sampled simultaneously, and realizes the Automatic Cycle of overall process.
The device of realizing the method for the invention comprises:
---pivoted arm, drive pivoted arm by stepper motor and rotate, the rotational angle of stepper motor and photoelectricity steady arm locating information are determined the anchor point of pivoted arm to each station jointly;
---filter membrane component is used to gather Atmospheric particulates and freely is placed on pivoted arm;
---station 1, gather station for particle, also be the initialized initial station of instrument;
---station 2 is weighing station;
---station 3 is filter membrane component blanking station;
---station 4 is filter membrane component material loading station;
---station 5, for new filter membrane component claims the gross weight station, physical address is identical with the 2nd station;
---station 6, be particle station to be sampled, physical address is identical with the 1st station.
Described stepper motor drives a pair of gear, and the pivoted arm rotation drives a pair of gear pair by stepper motor and realizes.
Described gear is spurred by cam-and-, and the lifting control of pivoted arm realizes by the engagement of control gear with by cam-and-and the displacement up and down of spring device pulling follower gear.
As shown in Figure 2, the ellipticity figure is represented pivoted arm, and the solid black roundlet representative in the pivoted arm is placed on the filter membrane component of the PM2.5 on the pivoted arm, and white roundlet is represented the PM10 filter membrane component.
The method of this method comprises particularly:
According to collection and analytic process to Atmospheric particulates, the course of work of weight method atmosphere particle monitoring instrument is divided into six subprocess, and realized at six stations (the collection station, the automatic weighing station of diaphragm filter membrane component, filter membrane component blanking station, filter membrane component material loading station, the new filter membrane component that are Atmospheric particulates claim stations to be collected such as gross weight station and particle) respectively.According to the situation of weighing of diaphragm filter membrane component and have or not damaged condition decide working cycle be 1-2-1-2 station periodic duties, still station 3-4-5-6-1-2-1-2 working cycle.
The position of the station shown in the figure is according to the pivoted arm determining positions of laying filter membrane component, the rotation of pivoted arm is to pay turn device by the stepper motor driven gear to realize, by with the rotational angle of stepping motor and the anchor point of being determined pivoted arm by the locating information of photoelectricity steady arm jointly.The lifting control of pivoted arm realizes by cam-and-and the displacement up and down of spring device pulling follower gear by the engagement of control gear.
The each several part function that this method is related to is described in more detail for example:
In Fig. 2, instrument work divides six stations to carry out, and the solid black roundlet in the pivoted arm is represented the filter membrane component of PM2.5, and white roundlet is represented the PM10 filter membrane component.
The present invention also is the automatic sampling process that can not the realize problem at existing weight method instrument existence, propose a kind of six station Automatic Cycle control device and be used for the particle monitoring instrument, make particle sample, weigh, change filter membrane component, claim the filter membrane component gross weight, return the working cycle that station 1 is waited for sampling; Or the working cycle between the work of sample-weighing realizes robotization.Working cycle between station is actually the control that pivoted arm is rotated.
Fig. 4 is the control device of pivoted arm motion.Its principle of work is: filter membrane component is filter membrane component by the rotating band of pivoted arm 7 to rotate from station 1 to station 2 or during to other station positions.And pivoted arm rotates and to drive a pair of gear pair by stepper motor and realize that the location of pivoted arm is to lean on the logotype of stepping angle and photoelectricity locating information to decide.Because pivoted arm is when second station or the 5th station, because of finishing the work of weighing of filter membrane component, pivoted arm must descend and make filter membrane component to break away from the support of pivoted arm and be placed on the supporting base on the balance, weigh finish after, pivoted arm rises again, filter membrane component freely is bearing on the pivoted arm again, and the drive filter membrane component forwards station 1 to or station 3 goes.These rise and fall of pivoted arm also are to realize by the control device of pivoted arm motion, when specifically being pivoted arm decline two gear meshing states are disconnected gradually, recover engagement during rising again gradually.Under stepper motor drove, pivoted arm was with filter membrane component to rotate again when wanting transposition.
Rotation and lifting control more specific description to pivoted arm are as follows:
The rotation control of pivoted arm: as Fig. 4, stepper motor 21 drives axle 22 and rotates, the driving gear 24 that is fixed on the axle 22 rotates thereupon and drives follower gear 25 rotations that are engaged with, because follower gear 25 is to be fixed on the sleeve 26, so sleeve 26 also rotates with the pivoted arm 7 that is connected with it.The location of rotating is determined jointly by the photoelectricity steady arm 10 of Fig. 1 and the stepping angle of stepper motor 21.
The lifting control of pivoted arm: the lifting control of pivoted arm comes down to the engagement of control gear and spurs gear displacement up and down by cam-and-and spring device.As shown in Figure 5, when servomotor 27 rotates, driving camshaft 28 rotates, the cam 29 that is fixed on the axle 28 rotates, motor 27 stalls when cam 29 goes to the lift radius, cam 29 presses down lever 30, and make follower gear 25 break away from engagement with driving gear 24, and pulling sleeve 26 is being with pivoted arm 7 to move down, the shift position is by the installation site decision of the sustained ring on the electronic balance worktable, when the sustained ring on the filter membrane component contact electronic balance worktable, filter membrane component and pivoted arm break away from fully.Begin to weigh after balance is stable, and send the PM10 film data of weighing to host CPU.Servomotor 27 starts once more, and cam 28 goes to the backhaul part, thereby lever 30 loosens impaction state, and follower gear 25 risings are meshed again with driving gear 24 under the effect of spring 31 elastic force.The pivoted arm band filter membrane component and is got back to original working position.
The present invention compared with prior art has following advantage:
1, the present invention utilizes six station self-circulation systems to realize the robotization of the atmosphere particle monitoring instrument sampling process of weight method.
2, the control device of pivoted arm motion has solved rotation and when weighing filter membrane component the transition from the restrained condition that be subjected to pivoted arm to unconfinement state of filter membrane component from a station to the another one station, thereby has guaranteed the carrying out of system works.
3, take the transposition orientation problem of the logotype decision pivoted arm of stepping angle and photoelectricity locating information, guaranteed the security of system works.
Description of drawings
The structural representation of Fig. 1 apparatus of the present invention; Among the figure, the 1st, the sampling station 1,2nd of bleeding, weighing station 2, the 3rd, blanking station 3,4th, material loading station 4,5th claims gross weight station 5, the 6th, the station 6,7th of waiting to sample, pivoted arm, the 8th, position rotaring part, the 9th, the control assembly of weighing, the 10th, photoelectricity steady arm, the 11st, data acquisition, the 12nd, data processing, the 13rd, show and output, the 14th, double CPU controller;
Fig. 2 is the described six station working cycle synoptic diagram of the inventive method;
Fig. 3 is the flow chart of Fig. 2;
Fig. 4 is that pivoted arm rotates and lifting structural representation partly among Fig. 1;
Fig. 5 is the cam-and-part-structure synoptic diagram that pivoted arm descends and controls when weighing control among Fig. 1;
Fig. 6 is six station working cycle instance graphs among Fig. 2;
Fig. 7 is station 1-station 2-station 1-station 2 station circulation sequential charts among Fig. 2;
Fig. 8 is station 3-station 4-station 5-station 6-station 1-station 2-station 1-station 2 station circulation sequential charts among Fig. 2, and among the figure, S1, S2 represent the servomotor 1 of station 1 and the servomotor 2 of station 2;
S11 represents to start servomotor and rotates to and make filter membrane component be in the state of bleeding (airtight); S12 represents that servomotor rotates to makes filter membrane relax to the non-state of bleeding (filter membrane drops on the pivoted arm);
S21 (S23) expression starts servomotor drops on the sustained ring of balance filter membrane component PM10 (PM2.5), and S22 (S24) expression starts servomotor rise pivoted arm and drives filter membrane component PM10 (PM2.5) to normal index position;
B12 represents that stepper motor is from station 1 (PM10)---〉station 2 (PM10);
B221 represents that stepper motor is at clockwise 20 degree (PM2.5) of 2 stations;
B23 represents that stepper motor is from station 2 (PM10)---〉station 3 (PM10);
B331 represents that stepper motor is at clockwise 20 degree (PM2.5) of 3 stations;
B34 represents that stepper motor is from station 3 (PM2.5)---〉station 4 (PM2.5);
B442 represents that stepper motor reverses 20 degree (PM10) at 4 stations;
B45 represents that stepper motor is from station 4 (PM10)---〉station 5 (PM10);
B551 represents that stepper motor is at clockwise 20 degree (PM2.5) of 5 stations;
B56 represents that stepper motor is from station 5 (PM10)---〉station 6 (PM10);
T1 represents that electronic balance claims the PM10 filter membrane component and sends data to main frame, and T2 represents that electronic balance claims the PM2.5 filter membrane component and sends data to main frame;
Z1 (Z2) expression starts vacuum pump.
Embodiment
As shown in Figure 6, during design, the center line of the PM10 of station 1 and the angle of six station vertical center lines (center line of station 2 just) are decided to be 60 degree.The center line angle of PM2.5 on the pivoted arm and PM10 is decided to be 20 degree.In station 1 sampling of bleeding.Sampling is weighed to station 2 after finishing, and this moment, pivoted arm clockwise rotated 60 degree, and arrived station 2.Motor 27 drives cam 29 and turns to lift location, makes lever 30 press down follower gear 25, and follower gear 25 breaks away from the engagement with driving gear 24, and drives sleeve 26 and pivoted arm 7 declines.The restrained condition that when the sustained ring on the filter membrane component arrival electronic balance, breaks away from pivoted arm 7.Servomotor 27 stalls.After electronic balance is stable, carry out weighing of PM10 filter membrane component.After having weighed, servomotor 27 starts again, and drive cam 29 goes to and falls the journey position, and lever 30 loosens impaction state, and index position is got back in follower gear 25 pulling sleeves 26 and pivoted arm rising under the effect of spring 31, thereby finishes the weighing process of PM10.Pivoted arm clockwise rotates 20 degree, and the center line of PM2.5 overlaps with vertical center line, repeats above-mentioned pivoted arm down maneuver, treat that electronic balance is stablized after, carry out PM2.5 and weigh.Repeat the vertical motion of above-mentioned pivoted arm, get back to the position of transposition.The weighing process of PM2.5 and the weighing process of PM10 are identical.The end of weighing, electronic balance sends the data of weighing to CPU, judges by CPU whether filter membrane can continue to use, if filter membrane component can continue to use then return station 1, instrument was operated in the circulation of 1-2 stations and continued down to sample this moment, as shown in Figure 7.As not using, pivoted arm should arrive the 3rd station blanking.This moment, pivoted arm rotated 35 degree clockwise again, made PM10 filter membrane component center arrive station 3, and the blanking operation that enters PM10.After blanking finished, pivoted arm clockwise rotated 20 degree again, and this moment, the PM2.5 filter membrane component arrived station 3, the blanking of PM2.5 filter membrane component.Then, pivoted arm clockwise rotates 20 and spends station 4, and the PM2.5 filter membrane component is gone up the PM10 filter membrane component again in the elder generation, finishes the work of material loading.Last pivoted arm rotates counterclockwise 75 degree, make filter membrane component return station 5 (physical location and station 2 are together), the PM10 filter membrane component is arrived directly over the station 5, enter the PM10 filter membrane component and claim the gross weight operation, weigh finish after pivoted arm clockwise rotate 20 degree, finish the title gross weight operation of PM2.5 again.After this, pivoted arm rotates counterclockwise 80 degree, makes filter membrane component return station 6, and (physical location and station 1 are together) waits for the sampling of bleeding.This moment instrument system be operated in station 3-4-5-6-1-2-1-2 working cycle, as shown in Figure 8.
Claims (6)
1, a kind of six station Automatic Cycle and control methods of atmosphere particle monitoring is characterized in that six processes are resolved in the monitoring of Atmospheric particulates, realize respectively comprising described six processes on six stations:
---the filter membrane component that will gather PM10 and PM2.5 Atmospheric particulates is placed on the pivoted arm simultaneously;
---pivoted arm drives filter membrane component and realizes the particle collection at station 1;
---pivoted arm drives filter membrane component and weighs at station 2 realization particles;
---pivoted arm drives filter membrane component and realizes the filter membrane component blanking at station 3;
---pivoted arm drives filter membrane component and realizes the filter membrane component material loading at station 4;
---pivoted arm drives filter membrane component and realizes that at the station identical with the physical address of station 25 new filter membrane component claims the particle gross weight;
---pivoted arm drives filter membrane component is waited for particle at the station identical with the physical address of station 16 sampling;
By judging that can filter membrane continue to use, make Atmospheric particulates sample, weigh, change filter membrane component, claim the filter membrane component gross weight;
When filter membrane can continue to use, adopt station 1-station 2-station 1-station 2 to realize working cycle;
When filter membrane can not continue to use, adopt station 3-station 4-station 5-station 6-station 1-station 2-station 1-station 2 to realize working cycle.
2, method according to claim 1 is characterized in that the rotation of described pivoted arm drives realization by stepper motor.
3, method according to claim 2 is characterized in that the rotational angle of stepper motor and the anchor point to each station that photoelectricity steady arm locating information is determined pivoted arm jointly.
4, realize the device of one of claim 1-3 described method, it is characterized in that comprising:
---pivoted arm, drive pivoted arm by stepper motor and rotate, the rotational angle of stepper motor and photoelectricity steady arm locating information are determined the anchor point of pivoted arm to each station jointly;
---filter membrane component is used to gather PM10 and PM2.5 Atmospheric particulates and it is placed on pivoted arm simultaneously;
---station 1, gather station for Atmospheric particulates, also be the initialized initial station of instrument;
---station 2 is weighing station;
---station 3 is filter membrane component blanking station;
---station 4 is filter membrane component material loading station;
---station 5, for new filter membrane component claims the gross weight station, physical address is identical with the 2nd station;
---station 6, be Atmospheric particulates station to be sampled, physical address is identical with the 1st station;
Adopt station 1-station 2-station 1-station 2 or station 3-station 4-station 5-station 6-station 1-station 2-station 1-station 2 to realize working cycle.
5,, it is characterized in that described stepper motor drives a pair of gear according to the described device of claim 4.
6, according to the described device of claim 5, described gear slides up and down by cam-and-and spring device pulling when it is characterized in that weighing.
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| CNB2005101002838A CN100498279C (en) | 2005-10-14 | 2005-10-14 | Six-station automatic circulation and control method for atmosphere particle monitoring, and apparatus therefor |
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| CNB2005101002838A CN100498279C (en) | 2005-10-14 | 2005-10-14 | Six-station automatic circulation and control method for atmosphere particle monitoring, and apparatus therefor |
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| CN100498279C true CN100498279C (en) | 2009-06-10 |
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| CN103234616A (en) * | 2013-04-24 | 2013-08-07 | 丹东百特仪器有限公司 | Particulate matter weighing device consistent to environment |
| CN103558067B (en) * | 2013-11-14 | 2016-04-13 | 丹东百特仪器有限公司 | A kind of Automatic change film device of many filter membranes ambient air particulate matter sampling thief |
| CN103616308B (en) * | 2013-11-26 | 2015-09-09 | 江苏苏净集团有限公司 | Particulate filter balance weighing device |
| CN103776665B (en) * | 2014-02-27 | 2016-09-07 | 青岛众瑞智能仪器有限公司 | A kind of Automatic change film air granule sampler |
| CN104007046B (en) * | 2014-06-04 | 2017-01-11 | 武汉市天虹仪表有限责任公司 | Smoke detection device |
| CN105486548B (en) * | 2015-12-24 | 2018-05-25 | 北京中晟泰科环境科技发展有限责任公司 | Atmosphere particulate matter sampler |
| CN105486547B (en) * | 2015-12-24 | 2018-05-25 | 北京中晟泰科环境科技发展有限责任公司 | Atmosphere particulate matter sampler |
| CN107402172A (en) * | 2017-07-27 | 2017-11-28 | 中绿环保科技股份有限公司 | Automatic filter membrane clamping device in PM2.5 particle monitoring instruments |
| CN109724849B (en) * | 2019-02-02 | 2020-10-09 | 北京大学 | Automatic filter membrane replacing device and method and membrane replacing mechanism |
| CN109870395B (en) * | 2019-03-20 | 2021-06-15 | 河南省计量科学研究院 | Uncertainty analysis method for measuring concentration of particulate matters in air based on automatic weighing of filter membrane |
| CN111301993B (en) * | 2020-04-02 | 2024-02-13 | 宁夏巨能机器人股份有限公司 | Loading channel unit of truss manipulator |
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| CN2128383Y (en) * | 1992-07-04 | 1993-03-17 | 地质矿产部北京地质仪器厂 | Dust collector for portable dust measurer |
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Assignee: Bettersize Instruments Ltd. Assignor: South China Normal University Contract record no.: 2011210000116 Denomination of invention: Six-station automatic circulation and control method for atmosphere particle monitoring, and apparatus therefor Granted publication date: 20090610 License type: Exclusive License Open date: 20060503 Record date: 20110818 |
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