CN2507004Y - Cutter for granular sampler - Google Patents
Cutter for granular sampler Download PDFInfo
- Publication number
- CN2507004Y CN2507004Y CN 00261179 CN00261179U CN2507004Y CN 2507004 Y CN2507004 Y CN 2507004Y CN 00261179 CN00261179 CN 00261179 CN 00261179 U CN00261179 U CN 00261179U CN 2507004 Y CN2507004 Y CN 2507004Y
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- CN
- China
- Prior art keywords
- housing
- plate
- upper cover
- cover plate
- entrapment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a cyclone-shaped cutter used in a sampler of air particles of an environmental protection monitoring instrument which is for overcoming a shortcoming of the prior cutter that the effect of separating thick and thin air particles is not good. The utility model comprises a nozzle 2, an upper cover plate 1, a shell 3 and a trapping plate 5. The upper cover plate 1 and the trapping plate 5 are separately arranged at the upper end and the lower end of the shell 3; the nozzle 2 is arranged at the upper cover plate 1 and the lower end of the nozzle 2 is lower than the lower surface of the upper cover plate 1; the trapping plate 5 is provided with a honeycomb duct 4 and the upper end of the honeycomb duct 4 is higher than the upper surface of the trapping plate 5; and the lower end of the nozzle 2 is lower than the upper end of the honeycomb duct 4. The utility model is used for sampler of air particles and has good effect of separating thick and thin air particles.
Description
The utility model relates to the cutter that uses in a kind of environment monitoring instrument air particle sampling thief.
Airborne overall suspended pellet (TSP) is that aerodynamics is straight through the particle less than 100 μ m, pellet (PM
10) be that aerodynamics is straight through the particle less than 10 μ m.The particle sampler that uses in the environment monitoring process divides overall suspended pellet sampling thief and pellet sampling thief two big classes.For pellet is separated, the pellet sampling thief must possess particulate separation device (claiming cutter again).During air sample process cutter, thick particle is trapped, and pellet is by behind the cutter, and by the filter membrane detention of back, available weight method is measured.In May nineteen ninety, the China Environmental Science Press has published " air and waste gas method for monitoring and analyzing " book, and the Fig. 1-2-28 in the 33rd page of this book discloses a kind of impacting type cutter principle schematic.Fig. 1-2-31 in the 34th page of this book discloses a kind of multistage impacting type cutter.The nozzle of this cutter is vertical with entrapment plate, has some holes on the entrapment plate.After dust laden air entered nozzle, flow velocity strengthened, and the inertia of the big particle in the air-flow is big, impinged upon on the first order entrapment plate and was hunted down.Thinner particle inertia is little, can not arrive entrapment plate, with entering next stage the hole of air-flow from first order entrapment plate.Because the hole on the entrapment plate is directly offered on entrapment plate, the upper end in hole is concordant with the upper surface of entrapment plate, though thinner particle can enter next stage with air-flow from the hole, but a small amount of captive big particle also might slip into from entrapment plate with air-flow and enter next stage the hole, has sneaked into thicker particle in the thinner particle that next stage is caught.Therefore, the effect of this cutter separation thickness particle is bad.
The purpose of this utility model is to provide a kind of and can reduce captive particle sampler cutter of sneaking into next stage than coarse particle on entrapment plate.
The purpose of this utility model is achieved in that the particle sampler cutter, comprises nozzle 2, upper cover plate 1, housing 3 and entrapment plate 5; Upper cover plate 1 is installed in the upper end of housing 3, and entrapment plate 5 is installed in the lower end of housing 3; Nozzle 2 is installed on the upper cover plate 1, the lower end of nozzle 2 be lower than upper cover plate 1 lower surface and and entrapment plate 5 between have certain distance; Its special character is, mozzle 4 is installed on the entrapment plate 5, the upper end of mozzle 4 be higher than entrapment plate 5 upper surface and and upper cover plate 1 between have certain distance; The lower end of nozzle 2 is lower than the upper end of mozzle 4.
The following of entrapment plate 5 can be installed the next stage housing again, and entrapment plate can be installed again in the lower end of next stage housing, and the rest may be inferred, can capture the different gradation of particle diameter like this; Perhaps sealing gasket directly is installed, pellet can be collected with the filter membrane on the sealing gasket like this in the lower end of next stage housing.
Upper cover plate 1 of the present utility model is parallel with entrapment plate 5, and nozzle 2 is vertical with entrapment plate 5, and mozzle 4 is vertical with entrapment plate 5.
Such scheme can make nozzle 2 and mozzle 4 be parallel to each other.
The lower end of housing 3 of the present utility model has housing 6, and entrapment plate 5 is installed between housing 3 and the housing 6; The lower end of housing 6 is equipped with sealing gasket 7, and filter membrane 8 is installed on the sealing gasket 7.
Entrapment plate 5 is used to capture large-size particles, and filter membrane 8 is used to collect pellet.
Mozzle 4 of the present utility model evenly distributes around nozzle 2.
The upper end of upper cover plate 1 of the present utility model is equipped with conical reducer pipe 9.
Respectively all by the O-ring seal sealing, be connected with screw rod 11 by wing nut 10 between reducer pipe 9, upper cover plate 1, housing 3, entrapment plate 5 and the housing 6 and compress O-ring seal between reducer pipe 9 of the present utility model and the upper cover plate 1, between upper cover plate 1 and the housing 3, between housing 3 and the entrapment plate 5, between entrapment plate 5 and the housing 6.
The above and below of upper cover plate 1 of the present utility model and entrapment plate 5 is along being provided with step all around; O-ring seal is placed on the step place.
The upper end of adapter 18 of the present utility model is connected with blast cap 20 in the inlet, and the outside of blast cap 20 is with the outer blast cap 19 of inlet in the inlet; The top of blast cap has some equally distributed inlets 21 in the inlet, has air inlet duct 23 between blast cap 20 and the outer blast cap 19 of inlet in the inlet., the upper end of adapter 18 is connected with blast cap 20 in the inlet, and the outside of blast cap 20 is with the outer blast cap 19 that enters the mouth in the inlet; The top of blast cap has some equally distributed inlets 21 in the inlet, has air inlet duct 23 between blast cap 20 and the outer blast cap 19 of inlet in the inlet.
The utility model is owing to have mozzle 4, and the upper end of mozzle 4 is higher than the upper surface of entrapment plate 5, the particle of the greater particle size that captures on the entrapment plate 5 can not fall into next stage from mozzle 4, so the utility model is better to the separating effect of the particle of different-grain diameter.Because the lower end of nozzle 2 of the present utility model is higher than the upper end of mozzle 4, the air-flow that nozzle 2 sprays downwards need upwards return and just can enter in the mozzle 4, the particle of greater particle size is difficult to directly spray into the mozzle 4 from nozzle 2 and enters next stage, has strengthened the separating effect to the particle of different-grain diameter.Because nozzle 2 is vertical in entrapment plate 5, the particle of greater particle size vertically strikes on the entrapment plate 5 with the air-flow of nozzle 2 ejections, and the capture effect of the particle of 5 pairs of greater particle sizes of entrapment plate is better.Because the lower end of housing 6 of the present utility model has sealing gasket 7, the following of sealing gasket 7 can clamping filter membrane 8.If only adopt two-stage to separate, filter membrane 8 can the pellet of collection cut size below 10 μ m, makes the utility model can be used for the pellet sampling thief.The utility model is owing to have wing nut 10 and screw rod 11, and mounting or dismounting conveniently make sampling process simple between reducer pipe 9, upper cover plate 1, housing 3, entrapment plate 5 and the housing 6.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
Fig. 1 is a structural representation of the present utility model.
As shown in Figure 1, present embodiment is a kind of cutter that is used for the pellet sampling thief, and it comprises reducer pipe 9, upper cover plate 1, nozzle 2, housing 3, mozzle 4, entrapment plate 5, housing 6, sealing gasket 7 and filter membrane 8.The middle part of reducer pipe 9 is rectangular pyramid shape, and its bottom is cylindrical.Upper cover plate 1 by O-ring seal 12 sealings, is sealed by O-ring seal 13 between 3 of upper cover plate 1 and the housings between reducer pipe 9 and the upper cover plate 1 between the upper end of the lower end of reducer pipe 9 and housing 3.Entrapment plate 5 by O-ring seal 14 sealings, is sealed by O-ring seal 15 between entrapment plate 5 and the housing 6 between housing 3 and the entrapment plate 5 between the upper end of the lower end of housing 3 and housing 6.The above and below of upper cover plate 1 and entrapment plate 5 is along being provided with step all around, and step is convenient to place O-ring seal 12,13,14,15, also is convenient to upper cover plate 1 and entrapment plate 5 location.Be connected with screw rod 11 by wing nut 10 between reducer pipe 9, upper cover plate 1, housing 3, entrapment plate 5 and the housing 6 and compress O-ring seal 12,13,14,15.The lower end of housing 6 is equipped with big flow TSP sampling thief main frame 16 by screw 17, and sealing gasket 7 and filter membrane 8 are clipped between housing 6 and the TSP sampling thief main frame 16, and sealing gasket 7 is below housing 6, and filter membrane 8 is below sealing gasket 7.Big flow TSP sampling thief main frame 16 comprises the programming controller of shell, flow recorder, flow controller, the blower fan of bleeding, work timer and timer etc.The upper end of reducer pipe 9 is connected with the lower end of taking over 18 by bolt clamp device 22, and the upper end of adapter 18 is connected with blast cap 20 in the inlet, and the outside of blast cap 20 is with the outer blast cap 19 that enters the mouth in the inlet.The top of blast cap 20 has some equally distributed inlets 21 in the inlet, has air inlet duct 23 between blast cap 20 and the outer blast cap 19 of inlet in the inlet.Upper cover plate 1 is parallel with entrapment plate 5, and nozzle 2 is vertical with entrapment plate 5, and mozzle 4 is vertical with entrapment plate 5.15 nozzles 2 are fixed on the upper cover plate 1, and the upper end of nozzle 2 is concordant with the upper surface of upper cover plate 1, the lower end of nozzle 2 be lower than upper cover plate 1 lower surface and and entrapment plate 5 between have certain distance.24 mozzles 4 are fixed on the entrapment plate 5, the upper end of mozzle 4 be higher than entrapment plate 5 upper surface and and upper cover plate 1 between have certain distance.The lower end of nozzle 2 is lower than the upper end of mozzle 4.Mozzle 4 evenly distributes around nozzle 2.
In sampling process, under the effect of the blower fan of bleeding, the air-flow that contains the total suspended matter particle enters from air inlet duct 23, through enter the mouth 21 enter in the blast cap 20.This air-flow enters the reducer pipe 9 from taking over 18, is spraying in the inner chamber of housing 3 through nozzle 2.Because the cross-sectional area of nozzle 2 is littler than the cross-sectional area of reducer pipe 9, to accelerate through the flow velocity of the air-flow of nozzle 2 ejections, particle diameter strikes on the entrapment plate under action of inertia greater than the particle of 10 μ m and is hunted down.Particle diameter upwards returns with air-flow less than the pellet of 10 μ m and enters in the mozzle 4, enters the inner chamber of housing 6 through mozzle 4, is collected by filter membrane 8 at last.
Claims (8)
1. the particle sampler cutter comprises nozzle (2), upper cover plate (1), housing (3) and entrapment plate (5); Upper cover plate (1) is installed in the upper end of housing (3), and entrapment plate (5) is installed in the lower end of housing (3); Nozzle (2) is installed on the upper cover plate (1), the lower end of nozzle (2) be lower than upper cover plate (1) lower surface and and entrapment plate (5) between have certain distance; It is characterized in that, mozzle (4) is installed on the entrapment plate (5), the upper end of mozzle (4) be higher than entrapment plate (5) upper surface and and upper cover plate (1) between have certain distance; The lower end of nozzle (2) is lower than the upper end of mozzle (4).
2. cutter according to claim 1 is characterized in that, upper cover plate (1) is parallel with entrapment plate (5), and nozzle (2) is vertical with entrapment plate (5), and mozzle (4) is vertical with entrapment plate (5).
3. cutter according to claim 2 is characterized in that, the lower end of housing (3) has housing (6), and entrapment plate (5) is installed between housing (3) and the housing (6); The lower end of housing (6) is equipped with sealing gasket (7), filter membrane (8) is installed below the sealing gasket (7).
4. according to claim 1,2 or 3 described cutters, it is characterized in that mozzle (4) evenly distributes around nozzle (2).
5. cutter according to claim 4 is characterized in that, the upper end of upper cover plate (1) is equipped with conical reducer pipe (9).
6. cutter according to claim 5, it is characterized in that, respectively all by the O-ring seal sealing, be connected with screw rod (11) by wing nut (10) between reducer pipe (9), upper cover plate (1), housing (3), entrapment plate (5) and the housing (6) and compress O-ring seal between reducer pipe (9) and the upper cover plate (1), between upper cover plate (1) and the housing (3), between housing (3) and the entrapment plate (5), between entrapment plate (5) and the housing (6).
7. cutter according to claim 6 is characterized in that, the above and below of upper cover plate (1) and entrapment plate (5) is along being provided with step all around; O-ring seal is placed on the step place.
8. cutter according to claim 7 is characterized in that, the upper end of taking over (18) is connected with blast cap (20) in the inlet, and the outside of blast cap (20) is with inlet outer blast cap (19) in the inlet; The top of blast cap has some equally distributed inlets (21) in the inlet, has air inlet duct (23) between blast cap (20) and the outer blast cap of inlet (19) in the inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00261179 CN2507004Y (en) | 2000-11-03 | 2000-11-03 | Cutter for granular sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00261179 CN2507004Y (en) | 2000-11-03 | 2000-11-03 | Cutter for granular sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2507004Y true CN2507004Y (en) | 2002-08-21 |
Family
ID=33616766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00261179 Expired - Fee Related CN2507004Y (en) | 2000-11-03 | 2000-11-03 | Cutter for granular sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2507004Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607893A (en) * | 2012-03-06 | 2012-07-25 | 深圳市华测检测技术股份有限公司 | Calibrating system of particulate matter cutter |
| CN102607894A (en) * | 2012-03-06 | 2012-07-25 | 深圳市华测检测技术股份有限公司 | Calibration system of particle cutter |
| CN102607895A (en) * | 2012-03-06 | 2012-07-25 | 深圳市华测检测技术股份有限公司 | Calibration system of particle cutter |
| CN102928264A (en) * | 2012-09-29 | 2013-02-13 | 中国科学院安徽光学精密机械研究所 | PM (particulate matter)10 cutting device |
| WO2019041963A1 (en) * | 2017-08-28 | 2019-03-07 | 太原海纳辰科仪器仪表有限公司 | Multichannel sampler having distributing structure |
-
2000
- 2000-11-03 CN CN 00261179 patent/CN2507004Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607893A (en) * | 2012-03-06 | 2012-07-25 | 深圳市华测检测技术股份有限公司 | Calibrating system of particulate matter cutter |
| CN102607894A (en) * | 2012-03-06 | 2012-07-25 | 深圳市华测检测技术股份有限公司 | Calibration system of particle cutter |
| CN102607895A (en) * | 2012-03-06 | 2012-07-25 | 深圳市华测检测技术股份有限公司 | Calibration system of particle cutter |
| CN102607895B (en) * | 2012-03-06 | 2014-09-24 | 深圳市华测检测技术股份有限公司 | Calibration system of particle cutter |
| CN102607894B (en) * | 2012-03-06 | 2015-03-11 | 深圳市华测检测技术股份有限公司 | Calibration system of particle cutter |
| CN102928264A (en) * | 2012-09-29 | 2013-02-13 | 中国科学院安徽光学精密机械研究所 | PM (particulate matter)10 cutting device |
| CN102928264B (en) * | 2012-09-29 | 2015-09-02 | 中国科学院安徽光学精密机械研究所 | Particle PM10 particle diameter cutter sweep |
| WO2019041963A1 (en) * | 2017-08-28 | 2019-03-07 | 太原海纳辰科仪器仪表有限公司 | Multichannel sampler having distributing structure |
| GB2573590A (en) * | 2017-08-28 | 2019-11-13 | Taiyuan Hainachenke Instr And Meter Co Ltd | Multichannel sampler having distributing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |