CN103900862A - Sampler with automatically replaced filter membrane and adsorption device and application method thereof - Google Patents
Sampler with automatically replaced filter membrane and adsorption device and application method thereof Download PDFInfo
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- CN103900862A CN103900862A CN201410144782.6A CN201410144782A CN103900862A CN 103900862 A CN103900862 A CN 103900862A CN 201410144782 A CN201410144782 A CN 201410144782A CN 103900862 A CN103900862 A CN 103900862A
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Abstract
The invention discloses a sampler with an automatically replaced filter membrane and adsorption device and an application method thereof. The sampler comprises a particulate cutter, a first position sensor, a cutter connecting pipe, a filter membrane clamp end cover, a filter membrane clamp, a sampling filter membrane, a second position sensor, a second motor, a second gear, an adsorption device, a flow sensor connector, a second gear, an adsorption device connector, a third position sensor, a flow sensor, a sucking pump, a step motor, a sample rack, a temperature sensor, a singlechip, a USB (universal serial bus) connector, a display screen, a keyboard and a heating and refrigerating device. According to the sampler and the application method thereof, the sampler provided by the invention is capable of completing works of a plurality of samplers, and collection of PM (particulate matter) 2.5 and organic matter samples, which is completed by a plurality of samplers, can be automatically completed by using one sampler through using a technology of automatically replacing the filter membrane and the adsorption device, thus the labor cost and the transportation cost are reduced, and the purchasing cost is saved.
Description
Technical field
The present invention relates to environment monitoring and gasoloid monitoring technical field, be specifically related to a kind of PM2.5 and organism sampling thief and the application process thereof that can automatically change filter membrane and adsorbent equipment.
Background technology
Public's environmental pollution, haze weather worsen " the people are boiled with resentment " increasingly.Environmental protection comprises monitoring and governance, and State Council in 2013 have put into effect ten measures of control atmosphere pollution, carry out the monitoring of PM2.5 numerical value in 161 cities; In 12 National People's Congress's meetings, propose to dissolve the environmental threats such as haze taking economic means as main, the accuracy of environmental monitoring data has been had higher requirement.PM2.5 fine particle is one of monitoring target of countries in the world pollutant, also be the main cause that forms haze, conventional PM2.5 monitoring method mainly contains automatic monitoring two class methods of gravimetric method and non-filter membrane, and the national standard assay method of China TSP/ PM10/ PM2.5 is gravimetric method.Automatically the technical scheme of monitoring use has β attenuation sensors and oscillating balance, light scattering method or optical absorption method etc., can realize robotization to the monitoring of PM2.5, but the mass concentration of particle need try to achieve through conversion, therefore, exists transformed error.Research shows that PM2.5 can suck human lung's more depths, and enters by lung tissue in the blood circulation of human body, and health is caused to larger impact, causes allergy, body immunity to decline, and even fatal disease occurs.
According to prior art, in the time gathering a PM2.5 sample, need to use PM2.5 cutter, sampling membrane and a sampling thief, in the time gathering organism or semi-volatile organic matter (SVOCS) sample, need to use filter membrane, adsorbent equipment and a sampling thief,, need to be simultaneously with two sampling thiefs while gathering at the same time PM2.5 and organic matter samples.So hand sampling expense and trucking costs are high.
Summary of the invention
The deficiency existing for prior art, technical matters to be solved by this invention is, provide an a kind of sampling thief can complete the work of many sampling thiefs, utilize the technology of automatically changing filter membrane, adsorbent equipment to realize the collection that automatically completes more than many PM2.5 and organic matter samples with a sampling thief, to reduce labour cost and transportation cost, save the automatic replacing filter membrane of buying expenses and sampling thief and the application process thereof of adsorbent equipment.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the sampling thief of a kind of automatic replacing filter membrane and adsorbent equipment, comprise cutter for particles, primary importance sensor, cutter is taken over, filter membrane clip end cap, filter membrane clip, sampling membrane, second place sensor, the second motor, the second gear, adsorbent equipment, flow sensor interface, the second tooth bar, adsorbent equipment interface, the 3rd position transducer, flow sensor, aspiration pump, stepper motor, specimen holder, temperature sensor, single-chip microcomputer, USB interface, display screen, keyboard, heating and cooling device, environment temperature sensor, atmosphere pressure sensor, constant temperature oven, the first motor, the first tooth bar, the first gear,
Described filter membrane clip end cap is taken over and cutter for particles sealed attachment by cutter; Described sampling membrane is arranged in filter membrane clip; Described filter membrane clip is arranged on adsorbent equipment by filter membrane clip end cap, and and adsorbent equipment between sealed attachment; Described filter membrane clip and adsorbent equipment are arranged on specimen holder; Described specimen holder and stepper motor are fixedly connected; Described stepper motor is arranged on constant temperature oven; Described flow sensor interface is by adsorbent equipment interface and adsorbent equipment sealed attachment; Described the second motor is arranged on constant temperature oven; Described the second gear and the second motor are fixedly connected; Described the second gear is meshed with the second tooth bar; Described the first motor is arranged on constant temperature oven; Described the first gear and the first motor are fixedly connected; Described the first gear is meshed with the first tooth bar; Described specimen holder, sampling membrane and adsorbent equipment are located in constant temperature oven;
Described primary importance sensor, second place sensor, the second motor, the 3rd position transducer, flow sensor, aspiration pump, stepper motor, temperature sensor, USB interface, display screen, keyboard, heating and cooling device, environment temperature sensor, atmosphere pressure sensor, the first motor all electrically connect with single-chip microcomputer.
Above-mentioned automatic replacing filter membrane and the sampling thief of adsorbent equipment, described cutter for particles comprises TSP, PM10, PM5, PM2.5 or PM1 cutter for particles.
Above-mentioned automatic replacing filter membrane and the sampling thief of adsorbent equipment, at least arrange an adsorbent equipment on described specimen holder.
An application process for the sampling thief of automatic replacing filter membrane described above and adsorbent equipment, includes following steps:
A) while, gathering first sample, drive specimen holder to rotate by stepper motor, when the filter membrane clip rotation of adsorbent equipment top or move to cutter for particles under when position, by second place sensor, signal is reached to single-chip microcomputer, Single-chip Controlling stepper motor stops operating, pass through the first gear by Single-chip Controlling the first motor simultaneously, the first rack drives cutter is taken over and is moved between filter membrane clip directly over filter membrane clip, by primary importance sensor, signal is sent to single-chip microcomputer, Single-chip Controlling the first motor quits work, and the sealing ring of taking over by cutter is realized cutter for particles and is connected with the movable sealing between filter membrane clip, control the second motor by the second gear, the second rack drives adsorbent equipment interface moves between adsorbent equipment gas outlet under adsorbent equipment gas outlet, by the 3rd position transducer, signal is sent to single-chip microcomputer, Single-chip Controlling the second motor quits work, and the movable sealing of realizing between adsorbent equipment gas outlet and flow sensor interface by the sealing ring on adsorbent equipment interface is connected,
B) while, gathering second sample, first take over and move up by the first gear, the first rack drives cutter by Single-chip Controlling the first motor, and after being tightly connected with filter membrane clip disengaging, by primary importance sensor, signal being sent to single-chip microcomputer, Single-chip Controlling the first motor quits work; Meanwhile, the second motor move down by the second gear, the second rack drives adsorbent equipment interface and with adsorbent equipment gas outlet depart from be tightly connected after, by the 3rd position transducer, signal is sent to single-chip microcomputer, quit work by Single-chip Controlling the second motor, then continue steps A) process, complete second sample collection;
When sampling, airborne sample is after cutter for particles, when through sampling membrane, in aerosol sample and organic matter samples, the semi-volatile organic matter sample of particulate form is delayed on sampling membrane, when through adsorbent equipment, the adsorbent that organic matter samples in gas is adsorbed in device absorbs, residual gas passes through flow sensor, aspiration pump is discharged to atmosphere, gas flow is in the time of flow sensor, the flow signal spreading out of from flow sensor is to single-chip microcomputer, with the sample streams value comparison of setting, in the time that sampling flow is greater than setting flow, Single-chip Controlling aspiration pump rotating speed reduces, actual samples flow is maintained in setting value, realize constant flow sampling.
The present invention automatically changes the sampling thief of filter membrane and adsorbent equipment and the advantage of application process is:
1, automatically change sampling thief and the application process thereof of filter membrane and adsorbent equipment, a sampling thief can complete the work of many sampling thiefs, utilize the technology of automatically changing filter membrane, adsorbent equipment, for staff in solution artificial sample process is few, need the problem that equipment is many, sampling labour cost and traffic expense are saved.
2, automatically change sampling thief and the application process thereof of filter membrane and adsorbent equipment, utilize the technology of automatically changing filter membrane, adsorbent equipment, realize a PM2.5 and the organic matter samples of simultaneously gathering per hour, be used for analyzing the Pollution Tendency of air in 24 hours.
3, automatically change sampling thief and the application process thereof of filter membrane and adsorbent equipment, can gather at most 50 particles and SVOCS and organic matter samples with criticizing, comprising 25 particulate forms and 25 gaseous samples.For research particle and airborne organism thereof, particularly PM2.5 and airborne organism thereof provide sample devices and technical support to the impact of health, simultaneously for the checking of PM2.5 and organism automated monitor the data precision provides technological means.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further details:
As shown in Figure 1, the sampling thief of a kind of automatic replacing filter membrane and adsorbent equipment, comprise cutter for particles 1, cutter for particles 1 adopts PM2.5 cutter for particles, primary importance sensor 2, cutter takes over 3, filter membrane clip end cap 4, filter membrane clip 5, sampling membrane 6, second place sensor 7, the second motor 8, the second gear 9, adsorbent equipment 10, flow sensor interface 11, the second tooth bar 12, adsorbent equipment interface 13, the 3rd position transducer 14, flow sensor 15, aspiration pump 16, stepper motor 17, specimen holder 18, temperature sensor 19, single-chip microcomputer 20, USB interface 21, display screen 22, keyboard 23, heating and cooling device 24, environment temperature sensor 25, atmosphere pressure sensor 26, constant temperature oven 27, the first motor 28, the first tooth bar 29, the first gear 30,
Described filter membrane clip end cap 4 by cutter take over 3 with cutter for particles 1 sealed attachment; Described sampling membrane 6 is arranged in filter membrane clip 5; Described filter membrane clip 5 is arranged on adsorbent equipment 10 by filter membrane clip end cap 4, and and adsorbent equipment 10 between sealed attachment; Described filter membrane clip 5 is arranged on specimen holder 18 with adsorbent equipment 10; Described specimen holder 18 is fixedly connected with stepper motor 17; Described stepper motor 17 is arranged on constant temperature oven 27; Described flow sensor interface 11 is by adsorbent equipment interface 13 and adsorbent equipment 10 sealed attachment; Described the second motor 8 is arranged on constant temperature oven 27; Described the second gear 9 and the second motor 8 are fixedly connected; Described the second gear 9 is meshed with the second tooth bar 12; Described the first motor 28 is arranged on constant temperature oven 27; Described the first gear 30 and the first motor 28 are fixedly connected; Described the first gear 30 is meshed with the first tooth bar 29; Described specimen holder 18, sampling membrane 6 and adsorbent equipment 10 are located in constant temperature oven 27;
Described primary importance sensor 2, second place sensor 7, the second motor 8, the 3rd position transducer 14, flow sensor 15, aspiration pump 16, stepper motor 17, temperature sensor 19, USB interface 21, display screen 22, keyboard 23, heating and cooling device 24, environment temperature sensor 25, atmosphere pressure sensor 26, the first motor 28 all electrically connect with single-chip microcomputer 20.
Described cutter for particles 1 comprises TSP, PM10, PM5, PM2.5 or PM1 cutter for particles.
In the time not filling adsorbent in adsorbent equipment 10, according to selected PM2.5 cutter for particles 1, available filter membrane gathers PM2.5 aerosol sample; While changing the cutter for particles such as TSP, PM10, PM5, PM1, also can be used for gathering the aerosol samples such as TSP, PM10, PM5, PM1, can gather at most 25 samples with criticizing, in the time that user gathers harmful gas with absorption plants such as detector tube, adsorption tube or absorption bottles, can save cutter for particles, filter membrane and filter membrane clip.
For preventing sample volatilization, losing, specimen holder 18 is designed in constant temperature oven 27, described constant temperature oven 27 has a dodge gate, and perseverance is sent sample thief to facilitate, and the scope of the temperature control point of incubator can arrange arbitrarily between 0 ~ 30 DEG C; The built-in heating and cooling device 24 of described constant temperature oven 27, temperature sensor 19, temperature sensor 19 electrically connects with heating and cooling device 24 and single-chip microcomputer 20; When work, the signal being recorded by temperature sensor 19 sends to single-chip microcomputer 20, and single-chip microcomputer 20 is worked according to the temperature spot control heating and cooling device 24 of setting.Described heating and cooling device 24 has heating and refrigerating function, and when constant temperature oven 27 temperature are during higher than design temperature, control heating and cooling device 24 by single-chip microcomputer 20 and freeze to design temperature, otherwise, be heated to design temperature.
An adsorbent equipment 10 is at least set on described specimen holder 18.
An application process for the sampling thief of automatic replacing filter membrane described above and adsorbent equipment, includes following steps:
A) while, gathering first sample, drive specimen holder 18 to rotate by stepper motor 17, when the filter membrane clip 5 of adsorbent equipment 10 tops rotate or move to cutter for particles 1 under when position, by second place sensor 7, signal is reached to single-chip microcomputer 20, single-chip microcomputer 20 control step motors 17 stop operating, control the first motor 28 by the first gear 30 by single-chip microcomputer 20 simultaneously, the first tooth bar 29 drives cutter to take over 3 and moves between filter membrane clip 5 directly over filter membrane clip 5, by primary importance sensor 2, signal is sent to single-chip microcomputer 20, single-chip microcomputer 20 is controlled the first motor 28 and is quit work, and take over sealing ring on 3 by cutter and realize cutter for particles 1 and be connected with the movable sealing between filter membrane clip 5, control the second motor 8 by the second gear 9, the second tooth bar 12 drives adsorbent equipment interface 13 to move between adsorbent equipment 10 gas outlets under adsorbent equipment 10 gas outlets, by the 3rd position transducer 14, signal is sent to single-chip microcomputer 20, single-chip microcomputer 20 is controlled the second motor 8 and is quit work, and the movable sealing of realizing between adsorbent equipment 10 gas outlets and flow sensor 15 interfaces by the sealing ring on adsorbent equipment interface 13 is connected,
B) while, gathering second sample, first controlling the first motor 28 by single-chip microcomputer 20 drives cutter adapter 3 to move up by the first gear 30, the first tooth bar 29, and after being tightly connected with filter membrane clip 5 disengagings, by primary importance sensor 2, signal is sent to single-chip microcomputer 20, single-chip microcomputer 20 is controlled the first motor 28 and is quit work; Meanwhile, the second motor 8 drive adsorbent equipment interface 13 to move down by the second gear 9, the second tooth bar 12 and with adsorbent equipment 10 gas outlets depart from be tightly connected after, by the 3rd position transducer 14, signal is sent to single-chip microcomputer 20, controlling the second motor 8 by single-chip microcomputer 20 quits work, then continue steps A) process, complete second preparation before sample collection; Next sample sampling preparation by that analogy;
When sampling, airborne sample is after cutter for particles 1, when through sampling membrane 6, in aerosol sample and organic matter samples, the semi-volatile organic matter sample of particulate form is delayed on sampling membrane 6, when through adsorbent equipment 10, the adsorbent that organic matter samples in gas is adsorbed in device 10 absorbs, residual gas is by flow sensor 15, aspiration pump 16 is discharged to atmosphere, gas flow is in the time of flow sensor 15, the flow signal spreading out of from flow sensor 15 is to single-chip microcomputer 20, with the sample streams value comparison of setting, in the time that sampling flow is greater than setting flow, single-chip microcomputer 20 is controlled aspiration pump 16 rotating speeds and is reduced, actual samples flow is maintained in setting value, realize constant flow sampling.Otherwise, as the same, can complete the sampling of 25 PM2.5 and 25 organic matter samples.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present invention, variation, change, interpolation or the replacement made, all should belong to protection scope of the present invention.
Claims (4)
1. automatically change the sampling thief of filter membrane and adsorbent equipment for one kind, it is characterized in that: comprise cutter for particles (1), primary importance sensor (2), cutter is taken over (3), filter membrane clip end cap (4), filter membrane clip (5), sampling membrane (6), second place sensor (7), the second motor (8), the second gear (9), adsorbent equipment (10), flow sensor interface (11), the second tooth bar (12), adsorbent equipment interface (13), the 3rd position transducer (14), flow sensor (15), aspiration pump (16), stepper motor (17), specimen holder (18), temperature sensor (19), single-chip microcomputer (20), USB interface (21), display screen (22), keyboard (23), heating and cooling device (24), environment temperature sensor (25), atmosphere pressure sensor (26), constant temperature oven (27), the first motor (28), the first tooth bar (29), the first gear (30),
Described filter membrane clip end cap (4) is taken over (3) and cutter for particles (1) sealed attachment by cutter; Described sampling membrane (6) is arranged in filter membrane clip (5); It is upper that described filter membrane clip (5) is arranged on adsorbent equipment (10) by filter membrane clip end cap (4), and and adsorbent equipment (10) between sealed attachment; Described filter membrane clip (5) is arranged on specimen holder (18) with adsorbent equipment (10); Described specimen holder (18) is fixedly connected with stepper motor (17); Described stepper motor (17) is arranged on constant temperature oven (27); Described flow sensor interface (11) is by adsorbent equipment interface (13) and adsorbent equipment (10) sealed attachment; Described the second motor (8) is arranged on constant temperature oven (27); Described the second gear (9) is fixedly connected with the second motor (8); Described the second gear (9) is meshed with the second tooth bar (12); Described the first motor (28) is arranged on constant temperature oven (27); Described the first gear (30) is fixedly connected with the first motor (28); Described the first gear (30) is meshed with the first tooth bar (29); Described specimen holder (18), sampling membrane (6) and adsorbent equipment (10) are located in constant temperature oven (27);
Described primary importance sensor (2), second place sensor (7), the second motor (8), the 3rd position transducer (14), flow sensor (15), aspiration pump (16), stepper motor (17), temperature sensor (19), USB interface (21), display screen (22), keyboard (23), heating and cooling device (24), environment temperature sensor (25), atmosphere pressure sensor (26), the first motor (28) all electrically connect with single-chip microcomputer (20).
2. the sampling thief of automatic replacing filter membrane according to claim 1 and adsorbent equipment, is characterized in that: described cutter for particles (1) comprises TSP, PM10, PM5, PM2.5 or PM1 cutter for particles.
3. the sampling thief of automatic replacing filter membrane according to claim 2 and adsorbent equipment, is characterized in that: an adsorbent equipment (10) is at least set on described specimen holder (18).
4. an application process for the sampling thief of the automatic replacing filter membrane as described in claim 1-3 any one and adsorbent equipment, is characterized in that: include following steps:
A) while, gathering first sample, drive specimen holder (18) rotation by stepper motor (17), when the filter membrane clip (5) of adsorbent equipment (10) top rotate or move to cutter for particles (1) under when position, by second place sensor (7), signal is reached to single-chip microcomputer (20), single-chip microcomputer (20) control step motor (17) stops operating; control the first motor (28) by the first gear (30) by single-chip microcomputer (20) simultaneously, the first tooth bar (29) drives cutter to take over (3) and moves between filter membrane clip (5) directly over filter membrane clip (5), by primary importance sensor (2), signal is sent to single-chip microcomputer (20), single-chip microcomputer (20) is controlled the first motor (28) and is quit work, and take over sealing ring on (3) by cutter and realize cutter for particles (1) and be connected with the movable sealing between filter membrane clip (5), control the second motor (8) by the second gear (9), the second tooth bar (12) drives adsorbent equipment interface (13) to move between adsorbent equipment (10) gas outlet under adsorbent equipment (10) gas outlet, by the 3rd position transducer (14), signal is sent to single-chip microcomputer (20), single-chip microcomputer (20) is controlled the second motor (8) and is quit work, and the movable sealing of realizing between adsorbent equipment (10) gas outlet and flow sensor (15) interface by the sealing ring on adsorbent equipment interface (13) is connected,
B) while, gathering second sample, first controlling the first motor (28) by single-chip microcomputer (20) drives cutter adapter (3) to move up by the first gear (30), the first tooth bar (29), and after being tightly connected with filter membrane clip (5) disengaging, by primary importance sensor (2), signal is sent to single-chip microcomputer (20), single-chip microcomputer (20) is controlled the first motor (28) and is quit work; Meanwhile, after the second motor (8) drives adsorbent equipment interface (13) to move down by the second gear (9), the second tooth bar (12) and departs from and be tightly connected with adsorbent equipment (10) gas outlet, by the 3rd position transducer (14), signal is sent to single-chip microcomputer (20), controlling the second motor (8) by single-chip microcomputer (20) quits work, then continue steps A) process, complete second sample collection;
When sampling, airborne sample is after cutter for particles (1), when through sampling membrane (6), in aerosol sample and organic matter samples, the semi-volatile organic matter sample of particulate form is delayed on sampling membrane (6), when through adsorbent equipment (10), the adsorbent that organic matter samples in gas is adsorbed in device (10) absorbs, residual gas is by flow sensor (15), aspiration pump (16) is discharged to atmosphere, gas flow is when flow sensor (15), the flow signal spreading out of from flow sensor (15) is to single-chip microcomputer (20), with the sample streams value comparison of setting, in the time that sampling flow is greater than setting flow, single-chip microcomputer (20) is controlled aspiration pump (16) rotating speed and is reduced, actual samples flow is maintained in setting value, realize constant flow sampling.
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| CN105300747A (en) * | 2015-10-30 | 2016-02-03 | 康姆德润达（无锡）测量技术有限公司 | Automatic filter membrane replacement device |
| CN105300743A (en) * | 2015-10-30 | 2016-02-03 | 康姆德润达（无锡）测量技术有限公司 | Combined particle sampling equipment |
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Application publication date: 20140702 |