CN202420926U - PM1 conjointed multistage cutting sampling head - Google Patents
PM1 conjointed multistage cutting sampling head Download PDFInfo
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- CN202420926U CN202420926U CN201120544681XU CN201120544681U CN202420926U CN 202420926 U CN202420926 U CN 202420926U CN 201120544681X U CN201120544681X U CN 201120544681XU CN 201120544681 U CN201120544681 U CN 201120544681U CN 202420926 U CN202420926 U CN 202420926U
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Abstract
The embodiment of the utility model discloses a PM1 conjointed multistage cutting sampling head. The PM1 conjointed multistage cutting sampling head is a layered combinational structure and mainly consists of a cutting opening cover, a PM2.5 impact nozzle layer, a PM2.5 impact board layer, a PM1 impact nozzle layer, a PM1 impact board layer, a filter membrane collection layer and a PUF (polyurethane foam) collection layer from top to bottom. According to the utility model, the design flow of the PM1 conjointed multistage cutting sampling head reaches 300L/Min so as to meet the actual requirements on the flow and the sampling time in the sampling process. Besides, PM1 aerosol particles and gaseous pollutants can be collected at the same time so as to realize grading collection of particles and automatic control under the premise that the flow stability and accuracy are reached. The cutting opening cover is of a circular arc design so that air rotate and enters the cutting head, and the collected airflow is more stable and even.
Description
Technical field
The utility model relates to a kind of cutting sampling head, relates in particular to the conjuncted multistage cutting sampling head of a kind of PM1.
Background technology
PM1 refers to the particle of aerodynamics equivalent diameter≤1 μ m, and in pellet (inhalable particulates), PM1 can suck the human lung depths through respiratory system, and is even more serious to the harmfulness of health.PM1 should be separately as an air quality evaluation index in the environmental monitoring field as the part of airborne pellet.
Main employing is to impact cutting technique in the sample grading technology of Atmospheric particulates; Promptly utilize the inertia impact principle that particle is carried out cascade sampling; Gather PM1 and gaseous state persistence organic pollutant (being called for short POPs) simultaneously, just need to adopt multistage multifunctional sampling instrument.Because China starts to walk than later to the research of aerosol particle; The sample devices of the aerosol particle that domestic environmental administration uses mostly leans on external introduction; The domestic design and the ability of producing the multistage collecting device of gasoloid a little less than; Still do not have stronger competitiveness, (100L/Min or 1000L/Min) is limited for its range ability; MOUDIMMI, eight grades of impact sampling devices of Andersen Sioutas Cascade Impactor (SKC) commonly used in the world, its flow is merely 9L/min-90L/min, and volume is less, can not satisfy particulate form POPs far away and analyze desired sample size.In addition, these multistage sampling devices also all can not be gathered gaseous state POPs simultaneously.And the big traffic sampling device of in atmosphere POPs research, comparatively using always, though can gather particulate form and gaseous contaminant simultaneously, the particle of its collection also is overall suspended pellet (TSP) basically, has realized not the sample grading of particle.Also can't realize automatic control, discharge stability and accuracy are not ideal enough.
The utility model content
The utility model embodiment technical matters to be solved is, a kind of PM1 is provided conjuncted multistage cutting sampling head.Can reach the collection flow of 300L/Min, satisfy in the sampling process the flow size and the actual demand in sampling time; Can gather PM1 aerosol particle and gaseous contaminant simultaneously, realize sample grading particle; Under the prerequisite that satisfies discharge stability and accuracy, realize control automatically.
In order to solve the problems of the technologies described above; The utility model embodiment provides a kind of PM1 conjuncted multistage cutting sampling head; The conjuncted multistage cutting sampling head of said PM1 is the layering unitized construction, is mainly impacted by cutting flap, PM2.5 from top to bottom and chews layer, PM2.5 and impact flaggy, PM1 and impact and chew layer, PM1 and impact flaggy, filter membrane collecting layer, PUF collecting layer and form;
Said PM2.5 impacts and chews layer and said PM1 and impact and chew layer and include to impact and chew plate and be located at said impact and chew the impact of at least one group of equidistance ring shooting distribution on different-diameter on the plate and chew;
It is first right cylinder that the upper end is chewed in said impact; It is second right cylinder that the middle part is chewed in said impact, and said first right cylinder links to each other through the first taper platform with said second right cylinder; It is the second taper platform that the lower end is chewed in said impact, and the said second taper platform links to each other with said second right cylinder;
Said impact is chewed and is that hollow structure, its inwall are that the upper end is big, the taper platform that the lower end is little.
Preferably, said impact is chewed the upper end for to be used to insert first right cylinder that plate is chewed in said impact, and the said first cylindrical external diameter is that 14-24 mm, internal diameter are 6-12mm, highly is 9-15 mm;
It is second right cylinder that the middle part is chewed in said impact, and the said second cylindrical external diameter is 14-18mm, highly is 18-25mm;
Said first right cylinder links to each other through the linear from top to bottom said first taper platform that reduces of diameter with said second right cylinder, and the height of the said first taper platform is 2-6mm; The said second cylindrical external diameter is identical with the lower end external diameter of the said first taper platform;
It is the linear from top to bottom said second taper platform that reduces of diameter that the lower end is chewed in said impact, and the lower end external diameter of the said second taper platform is 4-10mm, and bottom diameter is 3-8mm, and the upper end external diameter of the said second taper platform is identical with the said second cylindrical external diameter;
Said impact is chewed and is that hollow structure, its inwall are that upper-end inner diameter is 6-12mm, and bottom diameter is the taper platform of 3-8mm.
Preferably, to chew the number that impact is chewed described in the plate be 10-30 in said impact.
Preferably, said cutting flap is circular-arc top cover.
Preferably, said PM2.5 impacts flaggy and comprises PM2.5 shock plate and PM2.5 support, and the PM2.5 circular groove that said PM2.5 shock plate is an open upper end, the height of said PM2.5 circular groove are 45-70mm, and outside dimension is 300-400mm, and internal diameter size is 150-250mm;
Said PM2.5 support comprises the horizontal backing plate of PM2.5 and at least 3 bayonet sockets that are used for fixing the horizontal backing plate of said PM2.5.
Preferably, said PM1 impacts flaggy and comprises PM1 shock plate and PM1 support, and the PM1 circular groove that said PM1 shock plate is an open upper end, the height of said PM1 circular groove are 25-35mm, and outside dimension is 250-350mm, and internal diameter size is 150-250mm;
Said PM1 support comprises the horizontal backing plate of PM1 and at least 3 bayonet sockets that are used for fixing the horizontal backing plate of said PM1.
Preferably, said PM1 impacts and chews layer distance that arrives said PM1 impact flaggy between 1-4mm.
Preferably, center, said filter membrane collecting layer is the rectangle filter screen, sealing around the said rectangle filter screen.
Preferably, said PUF collecting layer comprises cylindrical tube, and cooperates with said cylindrical tube, is movably installed in the glass cylinder on the said cylindrical tube.
Preferably, connect through four groups of box fasteners between every layer of the conjuncted multistage cutting sampling head of said PM1.
Implement the utility model embodiment; Have following beneficial effect: the conjuncted multistage cutting sampling head of the utility model PM1 can be gathered PM1 aerosol particle and gaseous contaminant (for example agricultural chemicals, polychlorinated biphenyl and polynuclear aromatics in the air) simultaneously; Realization realizes control automatically to the sample grading of particle with under the prerequisite that satisfies discharge stability and accuracy, specific as follows:
At first; Unitary tapered design that impact is chewed and tapering can guarantee the impulsive force of air-flow; Arrangement that impact is chewed and number are unique; Add PM1 and impact and to chew impact distance that PM1 impacts flaggy between 1-4mm, impact distance is preferably between 2mm-3mm, guarantees that the cutting particle diameter of atmosphere adheres to specification.Therefore, the utility model is chewed the inner conical design and the accurate measuring and calculating of impact distance through impact, makes the cutting particle diameter more accurate, and airborne target particles thing is issued to the target of accurate layering inertial impact force cutting, can effectively improve collection efficiency;
Secondly, principle of hydrodynamics is satisfied in the circular-arc design of cutting flap, makes the gas entering cutting head that circles round, and makes the air-flow gathered more stable, evenly, and can waterproof; The cutting flap evenly increases for radius from top to bottom, helps that non-target bulky grain thing and rainwater get into the sampling system device in the sampling process, also is beneficial to security and aesthetic property that instrument is carried simultaneously;
Once more; The design discharge of the utility model can reach 300L/Min; The characteristics of low discharge during the multi-staged air sampling thief is have in the past been broken through; Flow design standard among the 300L/min can satisfy the persistence organic pollutant sample requirement of (being called for short POPs), satisfies simultaneously in the sampling process the flow size and the actual demand in sampling time.
Description of drawings
Fig. 1 is the structural representation of the conjuncted multistage cutting sampling head of a kind of PM1 of the utility model;
Fig. 2 is that structural representation is chewed in the impact of the conjuncted multistage cutting sampling head of a kind of PM1 of the utility model;
Fig. 3 is that a layer structural representation chewed in the PM2.5 impact of the conjuncted multistage cutting sampling head of a kind of PM1 of the utility model;
Fig. 4 is that a layer structural representation chewed in the PM1 impact of the conjuncted multistage cutting sampling head of a kind of PM1 of the utility model;
Fig. 5 is that the PM2.5 of the conjuncted multistage cutting sampling head of a kind of PM1 of the utility model impacts the flaggy structural representation;
Fig. 6 is that the PM1 of the conjuncted multistage cutting sampling head of a kind of PM1 of the utility model impacts the flaggy structural representation.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model is done to describe in detail further below.
Like Fig. 1-shown in Figure 4; The conjuncted multistage cutting sampling head of a kind of PM1; The conjuncted multistage cutting sampling head of said PM1 is the layering unitized construction; Mainly impact from top to bottom and chew layer 2, PM2.5 and impact flaggy 3, PM1 and impact and chew layer 4, PM1 and impact flaggy 5, filter membrane collecting layer 6, PUF collecting layer and form 7 by cutting flap 1, PM2.5
Said PM2.5 impacts and chews layer 2 and said PM1 and impact and chew layer 4 and include to impact and chew plate and be located at least one group of impact that the equidistance ring shooting distributes on different-diameter that said impact chews on the plate and chew 23;
It is first right cylinder 231 that 23 upper ends are chewed in said impact; It is second right cylinder 233 that 23 middle parts are chewed in said impact, and said first right cylinder 231 links to each other through the first taper platform 232 with said second right cylinder 233; It is the second taper platform 234 that 23 lower ends are chewed in said impact, and the said second taper platform 234 links to each other 233 with said second right cylinder;
Said impact is chewed 23 and is hollow structure, and its inwall is that the upper end is big, the taper platform 235 that the lower end is little.
Preferably, it is to be used to insert first right cylinder 231 that plate is chewed in said impact that 23 upper ends are chewed in said impact, and the external diameter of said first right cylinder 231 is that 14-24 mm, internal diameter are 6-12mm, highly is 9-15 mm;
It is second right cylinder 233 that the middle part is chewed in said impact, and the external diameter of said second right cylinder 233 is 14-18mm, highly is 18-25mm;
Said first right cylinder 231 links to each other through the linear from top to bottom said first taper platform 232 that reduces of diameter with said second right cylinder 233, and the height of the said first taper platform 232 is 2-6mm; The external diameter of said second right cylinder 233 is identical with the lower end external diameter of the said first taper platform 232;
It is the linear from top to bottom said second taper platform 232 that reduces of diameter that 23 lower ends are chewed in said impact; The lower end external diameter of the said second taper platform 232 is 4-10mm; Bottom diameter is 3-8mm, and the upper end external diameter of the said second taper platform 232 is identical with the external diameter of said second right cylinder 233;
Said impact is chewed 23 and is hollow structure, and its inwall is that upper-end inner diameter is 6-12mm, and bottom diameter is the taper platform 235 of 3-8mm.
It is between the 390-410mm that plate 21 diameters are chewed in the PM2.5 impact; About diameter 300mm He about diameter 250mm the uniform circular groove 22 of twice is being arranged; Both are respectively about 15mm and 20mm by corresponding groove radius; The connector 24 that it is 5-7mm that diameter 40-50mm position has into three diameters of equilateral triangle is used for fixing cutting flap and shock plate.
Need to prove that said circular groove is arc groove.
It is between the 390-410mm that plate 41 diameters are chewed in the PM1 impact; About diameter 310mm He about diameter 220mm the uniform circular groove 42 of twice is being arranged; Both are respectively about 15mm and 20mm by corresponding groove radius; The connector 44 that it is 5-7mm that diameter 40-50mm position has into three diameters of equilateral triangle is used for fixing cutting flap and shock plate.Impact is chewed 23 and is impacted perpendicular to said PM1 and to chew the plate surface and become three circles to arrange, and diameter is respectively about 300mm, 200mm and 100mm, and every circle impacts chews 23 one-tenths equidistance arrangements.
Said impact is chewed described in the plate and to be impacted that to chew 23 number be 10-30.
Preferably, said impact is chewed described in the plate and to be impacted that to chew 23 number be 18-20.
Said cutting flap 1 is circular-arc top cover.The top cover of this shape helps avoiding non-target bulky grain thing and rainwater entering sampling system device in the sampling process, also is beneficial to the security and the aesthetic property of instrument carrying simultaneously; Flaggy outside dimension basically identical is impacted in cutting flap lower end outside dimension and lower end.
Said PM2.5 impacts flaggy 3 and comprises PM2.5 shock plate 31 and PM2.5 support 32; Said PM2.5 shock plate 31 is the PM2.5 circular groove of open upper end; Said PM2.5 support comprises the horizontal backing plate 321 of PM2.5 and at least 3 first bayonet sockets 322 that are used for fixing the horizontal backing plate of said PM2.5; The height of said PM2.5 circular groove is 45-70mm, and outside dimension is 300mm-400mm, and internal diameter size is 150mm-250mm.
Preferably, the height of said PM2.5 circular groove is 58-60mm, and outside dimension is 350mm, and internal diameter size is 220mm, wall thickness 3MM.
Said PM1 impacts flaggy 5 and comprises PM1 shock plate 51 and PM1 support 52; Said PM1 shock plate 51 is the PM1 circular groove of open upper end; Said PM1 support 52 comprises the horizontal backing plate 521 of PM1 and at least 3 second bayonet sockets 522 that are used for fixing the horizontal backing plate of said PM1; The height of said PM1 circular groove is 25-35mm, and outside dimension is 250-350mm, and internal diameter size is 150-250mm.
Preferably, the height of said PM1 circular groove is 28-30mm, and outside dimension is 300mm, and internal diameter size is 200mm, wall thickness 3mm.
Said PM1 impacts and chews distance that layer 2 impacts flaggy 3 to said PM1 between 1-4mm.
Preferably, said PM1 impacts and chews distance that layer 2 impacts flaggy 3 to said PM1 between 2-3mm.
Between the said filter membranous layer 6 external diameter 290-310 mm, height is about 450mm, and the center is a rectangle filter screen 61, sealing all around, and filter screen 61 length 80-100mm, width is between 150-180mm.
Said PUF collects, and 7 comprise cylindrical tube 71, and cooperate with said cylindrical tube 71, are movably installed in the glass cylinder on the said cylindrical tube 71.Said cylindrical 71 built-in pipe diameters are between 80-100mm, and height can seal after loading onto supporting glass cylinder between 120-130mm fully.
Connect through four groups of box fasteners 8 between every layer of the conjuncted multistage cutting sampling head of said PM1.
Above disclosedly be merely a kind of preferred embodiment of the utility model, can not limit the interest field of the utility model certainly with this, the equivalent variations of therefore being done according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (10)
1. conjuncted multistage cutting sampling head of PM1; It is characterized in that; The conjuncted multistage cutting sampling head of said PM1 is the layering unitized construction, is mainly impacted by cutting flap, PM2.5 from top to bottom and chews layer, PM2.5 and impact flaggy, PM1 and impact and chew layer, PM1 and impact flaggy, filter membrane collecting layer, PUF collecting layer and form;
Said PM2.5 impacts and chews layer and said PM1 and impact and chew layer and include to impact and chew plate and be located at said impact and chew the impact of at least one group of equidistance ring shooting distribution on different-diameter on the plate and chew;
It is first right cylinder that the upper end is chewed in said impact; It is second right cylinder that the middle part is chewed in said impact, and said first right cylinder links to each other through the first taper platform with said second right cylinder; It is the second taper platform that the lower end is chewed in said impact, and the said second taper platform links to each other with said second right cylinder;
Said impact is chewed and is that hollow structure, its inwall are that the upper end is big, the taper platform that the lower end is little.
2. the conjuncted multistage cutting sampling head of PM1 as claimed in claim 1; It is characterized in that; Said impact is chewed the upper end for to be used to insert first right cylinder that plate is chewed in said impact, and the said first cylindrical external diameter is that 14-24 mm, internal diameter are 6-12mm, highly is 9-15 mm;
It is second right cylinder that the middle part is chewed in said impact, and the said second cylindrical external diameter is 14-18mm, highly is 18-25mm;
Said first right cylinder links to each other through the linear from top to bottom said first taper platform that reduces of diameter with said second right cylinder, and the height of the said first taper platform is 2-6mm; The said second cylindrical external diameter is identical with the lower end external diameter of the said first taper platform;
It is the linear from top to bottom said second taper platform that reduces of diameter that the lower end is chewed in said impact, and the lower end external diameter of the said second taper platform is 4-10mm, and bottom diameter is 3-8mm, and the upper end external diameter of the said second taper platform is identical with the said second cylindrical external diameter;
Said impact is chewed and is that hollow structure, its inwall are that upper-end inner diameter is 6-12mm, and bottom diameter is the taper platform of 3-8mm.
3. the conjuncted multistage cutting sampling head of PM1 as claimed in claim 1 is characterized in that, it is 10-30 that the number that impact is chewed described in the plate is chewed in said impact.
4. the conjuncted multistage cutting sampling head of PM1 as claimed in claim 1 is characterized in that said cutting flap is circular-arc top cover.
5. the conjuncted multistage cutting sampling head of PM1 as claimed in claim 1; It is characterized in that; Said PM2.5 impacts flaggy and comprises PM2.5 shock plate and PM2.5 support, and the PM2.5 circular groove that said PM2.5 shock plate is an open upper end, the height of said PM2.5 circular groove are 45-70mm; Outside dimension is 300-400mm, and internal diameter size is 150-250mm;
Said PM2.5 support comprises the horizontal backing plate of PM2.5 and at least 3 bayonet sockets that are used for fixing the horizontal backing plate of said PM2.5.
6. the conjuncted multistage cutting sampling head of PM1 as claimed in claim 4; It is characterized in that; Said PM1 impacts flaggy and comprises PM1 shock plate and PM1 support, and the PM1 circular groove that said PM1 shock plate is an open upper end, the height of said PM1 circular groove are 25-35mm; Outside dimension is 250-350mm, and internal diameter size is 150-250mm;
Said PM1 support comprises the horizontal backing plate of PM1 and at least 3 bayonet sockets that are used for fixing the horizontal backing plate of said PM1.
7. the conjuncted multistage cutting sampling head of PM1 as claimed in claim 1 is characterized in that, said PM1 impacts and chews layer distance that arrives said PM1 impact flaggy between 1-4mm.
8. the conjuncted multistage cutting sampling head of PM1 as claimed in claim 1 is characterized in that center, said filter membrane collecting layer is the rectangle filter screen, sealing around the said rectangle filter screen.
9. the conjuncted multistage cutting sampling head of PM1 as claimed in claim 1 is characterized in that said PUF collecting layer comprises cylindrical tube, and cooperates with said cylindrical tube, is movably installed in the glass cylinder on the said cylindrical tube.
10. the conjuncted multistage cutting sampling head of PM1 as claimed in claim 1 is characterized in that, connects through four groups of box fasteners between every layer of the conjuncted multistage cutting sampling head of said PM1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120544681XU CN202420926U (en) | 2011-12-23 | 2011-12-23 | PM1 conjointed multistage cutting sampling head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120544681XU CN202420926U (en) | 2011-12-23 | 2011-12-23 | PM1 conjointed multistage cutting sampling head |
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| CN202420926U true CN202420926U (en) | 2012-09-05 |
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| CN201120544681XU Expired - Fee Related CN202420926U (en) | 2011-12-23 | 2011-12-23 | PM1 conjointed multistage cutting sampling head |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175712A (en) * | 2011-12-23 | 2013-06-26 | 佛山市环保技术与装备研发专业中心 | PM1 (Particulate Matter) jointed multi-level cutting sampling head |
| CN108027303A (en) * | 2015-09-22 | 2018-05-11 | 纳米制药有限公司 | Instrument and method for the fine particle dose for determining powder suction preparation |
| US11346753B2 (en) * | 2017-09-12 | 2022-05-31 | University Of Northumbria At Newcastle | Impactor for aerosol component collection |
| WO2022262881A1 (en) | 2021-06-18 | 2022-12-22 | Technické Služby Ochrany Ovzduší Ostrava Spol. S R. O. | Combined microparticle impactor |
-
2011
- 2011-12-23 CN CN201120544681XU patent/CN202420926U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175712A (en) * | 2011-12-23 | 2013-06-26 | 佛山市环保技术与装备研发专业中心 | PM1 (Particulate Matter) jointed multi-level cutting sampling head |
| CN103175712B (en) * | 2011-12-23 | 2015-06-17 | 佛山市环保技术与装备研发专业中心 | PM1 (Particulate Matter) jointed multi-level cutting sampling head |
| CN108027303A (en) * | 2015-09-22 | 2018-05-11 | 纳米制药有限公司 | Instrument and method for the fine particle dose for determining powder suction preparation |
| US10724928B2 (en) | 2015-09-22 | 2020-07-28 | Nanopharm Limited | Apparatus and method for determination of the fine particle dose of a powder inhalation formulation |
| CN108027303B (en) * | 2015-09-22 | 2021-09-21 | 纳米制药有限公司 | Apparatus and method for determining fine particle dose of powder inhalation formulation |
| US11181447B2 (en) | 2015-09-22 | 2021-11-23 | Nanopharm Limited | Apparatus and method for determination of the fine particle dose of a powder inhalation formulation |
| US11346753B2 (en) * | 2017-09-12 | 2022-05-31 | University Of Northumbria At Newcastle | Impactor for aerosol component collection |
| WO2022262881A1 (en) | 2021-06-18 | 2022-12-22 | Technické Služby Ochrany Ovzduší Ostrava Spol. S R. O. | Combined microparticle impactor |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20120905 Termination date: 20161223 |