CN2507002Y - Vortex cutter - Google Patents
Vortex cutter Download PDFInfo
- Publication number
- CN2507002Y CN2507002Y CN 00260985 CN00260985U CN2507002Y CN 2507002 Y CN2507002 Y CN 2507002Y CN 00260985 CN00260985 CN 00260985 CN 00260985 U CN00260985 U CN 00260985U CN 2507002 Y CN2507002 Y CN 2507002Y
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- China
- Prior art keywords
- cone
- mozzle
- cylinder
- bulky grain
- cylindrical drum
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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 the shortcoming of the prior cyclone-shaped cutter that a part of inhaled particle matters on a filter membrane can be caused to fall off when disassembling the measurement of the filter membrane. The utility model comprises a round cylinder, an air inlet 2, a collector of large particles 7, an upper cone 8 and a gasket 9. The round cylinder is provided with an inner cylinder 4; the lower end of the inner cylinder 4 is communicated with an inner cavity of the round cylinder and the inside of the inner cylinder is coated with a honeycomb duct 5; the upper end of the honeycomb duct 5 is communicated with the inner cavity of the inner cylinder 4 and the lower end of the honeycomb duct 5 is communicated with an upward small end of the upper cone 8. The utility model can prevent the inhaled particle matters from falling off the filter membrane.
Description
The utility model relates to the cutter, particularly cyclone type 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.Cutter has impacting type, cyclone type, radial inflow etc. multiple.May nineteen ninety, the China Environmental Science Press has published " air and waste gas method for monitoring and analyzing " book, disclose a kind of cyclone separator in the 32nd and 33 page of this book, it comprises air intake, air out, cylinder, gas outlet pipe, bulky grain gatherer, filter membrane etc.Because the filter membrane of this cyclone separator is installed in the upper end of gas outlet pipe, air is upward through filter membrane from the lower surface of filter membrane, and pellet is delayed on the lower surface of filter membrane.When the dismounting filter membrane is measured with weight method, because pellet on the lower surface of filter membrane, under action of gravity, can make the part pellet on the filter membrane drop, thereby influence the accuracy of measurement result.
The purpose of this utility model is to provide a kind of and can prevent the cyclone type cutter that pellet drops when the dismounting filter membrane.
The purpose of this utility model is to realize like this, the cyclone type cutter, comprise cylinder, be positioned at cylinder top air intake 2, be positioned at cylinder below bulky grain gatherer 7, be positioned at the upper cone 8 of bulky grain gatherer 7 lower ends and be installed in the sealing gasket 9 of the downward big end of upper cone 8; Its special character is, cylinder is equipped with inner core 4, and the lower end of inner core 4 is communicated with the inner chamber of cylinder; Be with mozzle 5 in the inner core 4, the upper end of mozzle 5 is communicated with the inner chamber of inner core 4, and the lower end of mozzle 5 is communicated with the small end that makes progress of upper cone 8.
Cylinder of the present utility model comprises cylindrical drum 1, cover 3 and circular cone tube 12; Cover 3 is installed in the upper end of cylindrical drum 1, and the big end of circular cone tube 12 and the lower end of cylindrical drum 1 are integral.
Cylinder adopts the branch body structure of cover 3 and cylindrical drum 1 and circular cone tube 12, helps assembling of the present utility model.
Adopt said structure, after air enters in the cylindrical drum 1 from air intake 2, do downward helical motion.
The dead in line of cylindrical drum 1 of the present utility model, inner core 4 and mozzle 5, the upper end of inner core 4 are installed on the cover 3, and the upper end of mozzle 5 is installed on the cover 3; The top of mozzle 5 has equally distributed circular hole 6, and mozzle 5 is communicated with the inner chamber of inner core 4 by circular hole 6.
The lower end of circular cone tube 12 of the present utility model has internal thread, and the upper end of bulky grain gatherer 7 has external thread, and the upper end of the lower end of circular cone tube 12 and bulky grain gatherer 7 links together by this internal thread and external thread; The lower end of bulky grain gatherer 7 has internal thread, and the small end that makes progress of upper cone 8 has external thread, and the small end of the lower end of bulky grain gatherer 7 and upper cone 8 links together by this internal thread and external thread; The center of bulky grain gatherer 7 has cylindrical hole 13, and the lower end of mozzle 5 is communicated with the small end of upper cone 8 by cylindrical hole 13.
The downward big end of upper cone 8 of the present utility model is equipped with lower cone 11, and the big end of upper cone 8 and the big end of lower cone 11 are by being threaded togather; Sealing gasket 9 is between upper cone 8 and lower cone 11, and the downward small end of lower cone 11 has air vent pipe 16.
Owing to the utlity model has air intake 2 and cylinder, after the air that contains overall suspended pellet enters cylinder from air intake 2, in cylinder, form swirling eddy.Under action of centrifugal force, coarse particle is thrown on the barrel, and continues to move downward, and speed reduces gradually.Lose the energy that advances behind coarse particle and the barrel bump and fall in the bulky grain gatherer 7, coarse particle is captured.Pellet is with rising in the gap of air-flow between inner core 4 and mozzle 5, the upper end that rises to mozzle 5 enters in the mozzle 5 from circular hole 6 again, move downward along mozzle 5, enter in the upper cone 8 through the cylindrical hole 13 of oversized particles gatherer 7 from lower end at last along mozzle 5.Because the big end of upper cone 8 is downward, sealing gasket 9 is installed in the big end of upper cone 8, and filter membrane is below sealing gasket 9, so the air-flow that contains pellet is passed down through filter membrane from the upper surface of filter membrane, pellet is delayed on the upper surface of filter membrane.The dismounting filter membrane is when measuring with weight method, because pellet is on the upper surface of filter membrane, pellet can not drop, and therefore the result who measures is more accurate.
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 cyclone type cutter that is used for the pellet sampling thief, and it comprises cylinder, air intake 2, bulky grain gatherer 7, upper cone 8, sealing gasket 9, inner core 4, mozzle 5, upper cone 8 and lower cone 11.Cylinder comprises cylindrical drum 1, cover 3 and circular cone tube 12.Cover 3 is installed in the upper end of cylindrical drum 1 by screw thread, and the big end of circular cone tube 12 and the lower end of cylindrical drum 1 are integral.Air intake 2 is square, and it is fixed on the side of cylindrical drum 1, and tangent with cylindrical drum 1; The axis normal of the axis of air intake 2 and cylindrical drum 1, but non-intersect.Inner core 4 is enclosed within the cylindrical drum 1, and its upper end is installed on the cover 3 by screw thread, and its lower end is opened wide and is communicated with the inner chamber of cylindrical drum 1.Insert in the circular hole of cover 3 upper end of mozzle 5, and its top has equally distributed circular hole 6, and mozzle 5 is communicated with the inner chamber of inner core 4 by circular hole 6.The lower end of circular cone tube 12 is a small end, and the lower end has internal thread, and the upper end of bulky grain gatherer 7 has external thread, and the upper end of the lower end of circular cone tube 12 and bulky grain gatherer 7 links together by this internal thread and external thread.Seal by O-ring seal 14 between the upper end of the lower end of circular cone tube 12 and bulky grain gatherer 7.The upper end of upper cone 8 is a small end, and the lower end is big end.The upper end of upper cone 8 has external thread, and the lower end of bulky grain gatherer 7 has internal thread, and the lower end of the upper end of upper cone 8 and bulky grain gatherer 7 links together by this internal thread and external thread.Seal by O-ring seal 15 between the lower end of the upper end of upper cone 8 and bulky grain gatherer 7.The center of bulky grain gatherer 7 has cylindrical hole 13, and the lower end of mozzle 5 is communicated with the small end of upper cone 8 by cylindrical hole 13.The upper end of lower cone 11 is big end, and the lower end is a small end.The upper end of lower cone 11 has external thread, and the lower end of upper cone 8 has internal thread, and the lower end of the upper end of lower cone 11 and upper cone 8 links together by this internal thread and external thread.Sealing gasket 9 and filter membrane 10 and are clamped by upper cone 8 and lower cone 11 between the upper end of the lower end of upper cone 8 and lower cone 11.The lower end of lower cone 11 has air vent pipe 16, and air vent pipe 16 is integral with lower cone 11.The cylindrical hole 13 of cylindrical drum 1, inner core 4, mozzle 5, circular cone tube 12, bulky grain gatherer 7, upper cone 8, lower cone 11 and air vent pipe 16 are coaxial.The lower end of air vent pipe 16 links to each other with middle flow TSP sampling thief main frame, and middle flow TSP sampling thief main frame comprises the programming controller of shell, flow recorder, flow controller, the blower fan of bleeding, work timer and timer etc.
In the sampling process, under the effect of the blower fan of bleeding, the air-flow that contains the total suspended matter particle enters the inner chamber of cylindrical drum 1 from air intake 2, forms swirling eddy in cylindrical drum 1.Under action of centrifugal force, particle diameter is got rid of on the barrel of cylindrical drum 1 greater than the coarse particle of 10 μ m, and continues to move downward, and speed reduces gradually.Lose the energy that advances behind coarse particle and the barrel bump, fall in the bulky grain gatherer 7 from the inwall of circular cone tube 12, coarse particle is captured.Particle diameter enters upwards motion in the gap between inner core 4 and the mozzle 5 less than the pellet of 10 μ m with air-flow, enters in the mozzle 5 through circular hole 6 again, moves downward along mozzle 5, enters the inner chamber of upper cone 8 at last through cylindrical hole 13.In the inner chamber of upper cone 8, the air-flow that contains pellet is passed down through filter membrane 10 from the upper surface of filter membrane 10, and pellet is delayed on the upper surface of filter membrane 10.Discharged through the inner chamber and the air vent pipe 16 of lower cone 11 by the air after filter membrane 10 filtrations.Take out filter membrane 10, measure the pellet of detention on the filter membrane 10, can obtain the weight of pellet with weight method.
Claims (6)
1. cyclone type cutter, comprise cylinder, be positioned at cylinder top air intake (2), be positioned at the cylinder below bulky grain gatherer (7), be positioned at the upper cone (8) of bulky grain gatherer (7) lower end and be installed in the sealing gasket (9) of the downward big end of upper cone (8); It is characterized in that cylinder is equipped with inner core (4), the lower end of inner core (4) is communicated with the inner chamber of cylinder; Be with mozzle (5) in the inner core (4), the upper end of mozzle (5) is communicated with the inner chamber of inner core (4), and the lower end of mozzle (5) is communicated with the small end that makes progress of upper cone (8).
2. cutter according to claim 1 is characterized in that, cylinder comprises cylindrical drum (1), cover (3) and circular cone tube (12); Cover (3) is installed in the upper end of cylindrical drum (1), and the lower end of the big end of circular cone tube (12) and cylindrical drum (1) is integral.
3. cutter according to claim 2 is characterized in that, air intake (2) is square, and it is fixed on the side of cylindrical drum (1), and tangent with cylindrical drum (1); The axis normal of the axis of air intake (2) and cylindrical drum (1), but non-intersect.
4. according to claim 1,2 or 3 described cutters, it is characterized in that, the dead in line of cylindrical drum (1), inner core (4) and mozzle (5), the upper end of inner core (4) is installed on the cover (3), and the upper end of mozzle (5) is installed on the cover (3); The top of mozzle (5) has equally distributed circular hole (6), and mozzle (5) is communicated with the inner chamber of inner core (4) by circular hole (6).
5. cutter according to claim 4, it is characterized in that, the lower end of circular cone tube (12) has internal thread, and the upper end of bulky grain gatherer (7) has external thread, and the upper end of the lower end of circular cone tube (12) and bulky grain gatherer (7) links together by this internal thread and external thread; The lower end of bulky grain gatherer (7) has internal thread, and the small end that makes progress of upper cone (8) has external thread, and the small end of the lower end of bulky grain gatherer (7) and upper cone (8) links together by this internal thread and external thread;
The center of bulky grain gatherer (7) has cylindrical hole (13), and the lower end of mozzle (5) is communicated with the small end of upper cone (8) by cylindrical hole (13).
6. cutter according to claim 5 is characterized in that, the downward big end of upper cone (8) is equipped with lower cone (11), and the big end of the big end of upper cone (8) and lower cone (11) is by being threaded togather; Sealing gasket (9) is positioned between upper cone (8) and the lower cone (11), and the downward small end of lower cone (11) has air vent pipe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00260985 CN2507002Y (en) | 2000-11-03 | 2000-11-03 | Vortex cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00260985 CN2507002Y (en) | 2000-11-03 | 2000-11-03 | Vortex cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2507002Y true CN2507002Y (en) | 2002-08-21 |
Family
ID=33616649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00260985 Expired - Fee Related CN2507002Y (en) | 2000-11-03 | 2000-11-03 | Vortex cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2507002Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100385226C (en) * | 2005-08-30 | 2008-04-30 | 华南师范大学 | Automatic feeding and laying off device for filter membrane component in atmosphere granule monitoring instrument |
| CN108760414A (en) * | 2018-08-02 | 2018-11-06 | 华中农业大学 | Middle flow void whirlwind sampler and its application method |
| CN111537292A (en) * | 2020-03-12 | 2020-08-14 | 北京伟瑞迪科技有限公司 | Double-channel cutter |
-
2000
- 2000-11-03 CN CN 00260985 patent/CN2507002Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100385226C (en) * | 2005-08-30 | 2008-04-30 | 华南师范大学 | Automatic feeding and laying off device for filter membrane component in atmosphere granule monitoring instrument |
| CN108760414A (en) * | 2018-08-02 | 2018-11-06 | 华中农业大学 | Middle flow void whirlwind sampler and its application method |
| CN108760414B (en) * | 2018-08-02 | 2023-11-17 | 华中农业大学 | Medium flow virtual cyclone sampler and use method thereof |
| CN111537292A (en) * | 2020-03-12 | 2020-08-14 | 北京伟瑞迪科技有限公司 | Double-channel cutter |
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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 |