CN201060119Y - High precision respiratory dust sampling head - Google Patents
High precision respiratory dust sampling head Download PDFInfo
- Publication number
- CN201060119Y CN201060119Y CNU2007200845361U CN200720084536U CN201060119Y CN 201060119 Y CN201060119 Y CN 201060119Y CN U2007200845361 U CNU2007200845361 U CN U2007200845361U CN 200720084536 U CN200720084536 U CN 200720084536U CN 201060119 Y CN201060119 Y CN 201060119Y
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- connector
- main body
- sampling head
- high precision
- cyclone separator
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Abstract
The utility model relates to a dust collecting device, in particular to a high precision respiratory dust sampling head with good leak tightness and high sampling precision. The high precision respiratory dust sampling head of the utility model is composed of a coarse granule collector, a cyclone separator, a support, a connector, a main body, a filter film clip, an exhaust hood opening and a rotating cover; the cyclone separator is arranged at the lower end of the connector, the coarse granule collector is sleeved on the cyclone separator, a threaded pipe is arranged at the upper end of the connector, a rubber packing ring is arranged at the root of the threaded pipe; the main body is connected tightly with threaded pipe arranged at the upper end of the connector; the filter film is provided with a steel mesh ring at the bottom which is inserted into the main body; the exhaust hood opening contacts with the filter film clip; the rotating cover is arranged through the exhaust hood opening and then rotatablely connected with the main body tightly. The utility model improves the tightness property of the sampling head, ensures that the filter film is fixed perfectly without damage, prevents the sampling filter film from polluting due to the spilling send grains and slurry in site and improves the sampling precision.
Description
Technical field
The utility model relates to a kind of dust harvester, particularly a kind of good airproof performance, the high precision respirable dust sampling head that sampling precision is high.
Background technology
The dust sampling head is the sampling apparatus of dust suspension particle in the air of a kind of collecting work place, and dust can be divided into total dust and respirable dust by the particle diameter difference.Respirable dust refers to enter the dust of respiratory bronchiole and alveolar, respirable dust sampling according to the existing occupational health standard code of China is meant the collection aerodynamic diameter all below 7.07 microns, and the collecting efficiency of aerodynamic diameter 5 micron dust particles is 50% dust.The respirable dust sampling head that is adopted in the present dust sampling of China remains in more problem, airtight not tight as sampling head, seam crossing from sampling head during sampling leaks gas, even after having used the band sealing, air leakage reduces, but still gas leakage, gas leakage just can not guarantee to obtain respirable dust concentration accurately; Existing dust sampling head adopts open thief hatch, makes the grains of sand that sample is subjected to splashing in the working environment and the pollution of mud easily; How the filter membrane clip of sampling head is made with general plastics, yielding and broken, and does not have supporting pad, therefore filter membrane fold often occurs in sampling process, comes off and fracture phenomena; The requirement that the separating effect of existing respirable dust sampling head does not often reach technical standard yet.
The utility model content
The purpose of this utility model is to overcome the defective of existing respirable dust sampling head and a kind of good seal performance, the antijamming capability that design are strong, sampling is more accurate, the high precision respirable dust sampling head of easy care, long service life.
The purpose of this utility model realizes as follows: high precision respirable dust sampling head described in the utility model is made up of coarse particle gatherer, cyclone separator, support, connector, main body, filter membrane clip, draft hood mouth and spiral cover; Connector is a ring bodies, and its outside is equipped with support, and the connector lower end is provided with cyclone separator, and the coarse particle gatherer is socketed on the cyclone separator; The connector upper end is provided with threaded line pipe, and the threaded line pipe root is equipped with the connector rubber washer; Main body is a ring-like sleeve, and its lower end is provided with internal thread, and its upper end-face edge is provided with external thread, and its inside, upper end is provided with ring-like, and the main rubber packing ring is installed on the annular table, and the threaded line pipe of main body internal thread one end and connector upper end closely spins; Filter membrane clip is circular damascene structures, and the bottom is provided with the steel mesh pad, and filter membrane clip and steel mesh pad are closely chimeric, and filter membrane clip is embedded in the main body, and places on the ring-like platform; Draft hood mouth lower end is provided with removable rubber washer, and the draft hood mouth closely contacts with filter membrane clip; Spiral cover is the inboard ring bodies that is provided with screw thread, closely spins with main body after overlapping the draft hood mouth.
Described connector rubber washer is fixedly mounted on the root of the threaded line pipe of connector upper end, and fixed installation can improve sealing property.
Described main rubber packing ring is fixedly mounted on the annular table of main body, and fixed installation can improve sealing property.
The air intake opening of described cyclone separator is rounded, and diameter is 5 millimeters, can prevent sand grains or mud contamination sampling membrane that sampled point splashes.
Described cyclone separator inwall is smooth curved surfaces.
Described cyclone separator is a metal material, and the aerodynamic diameter of the dust granules of being gathered is below 7.07 microns, and diameter is that the acquisition rate of 5 microns powder dust particle is 50%.
Good effect of the present utility model: the Fixed Design of the utility model rubber washer has strengthened the sealing property of sampling head; The design of filter membrane clip can be well fixing filter membrane and can not damage filter membrane, prevent to occur in the sampling process that sampling membrane breaks or fold; The rounded sand grains or the mud contamination sampling membrane that can prevent that sampled point from splashing of the air intake opening of cyclone separator improves sampling precision; The cyclone separator inwall is smooth curved surfaces, cleans easily.
Description of drawings
Fig. 1 is the utility model structure explosive view
Fig. 2 is the utility model assembling back synoptic diagram
Among the figure, 1 coarse particle gatherer, 2 cyclone separators, 3 supports
4 connectors, 5 main bodys, 6 filter membrane clips
7 draft hood mouths, 8 spiral covers, 9 threaded line pipes
11 ring-like 12 removable rubber washers of 10 connector rubber washers
13 steel mesh pads, 14 main rubber packing rings
Embodiment
As shown in Figure 1, high precision respirable dust sampling head described in the utility model is made up of coarse particle gatherer 1, cyclone separator 2, support 3, connector 4, main body 5, filter membrane clip 6, draft hood mouth 7 and spiral cover 8; Connector 4 is a ring bodies, and its outside is equipped with support 3, and connector 4 lower ends are provided with cyclone separator 2, and coarse particle gatherer 1 is socketed on the cyclone separator 2; The connector upper end is provided with threaded line pipe 9, and threaded line pipe 9 roots are equipped with connector rubber washer 10; Main body 5 is a ring-like sleeve, and its lower end is provided with internal thread, and its upper end-face edge is provided with external thread, and its inside, upper end is provided with ring-like 11, and main rubber packing ring 14 is installed on the annular table 11, and the threaded line pipe 9 of main body 5 internal threads, one end and connector 4 upper ends closely spins; Filter membrane clip 6 is circular damascene structures, and the bottom is provided with steel mesh pad 13, and filter membrane clip 6 is closely chimeric with steel mesh pad 13, and filter membrane clip 6 is embedded in the main body 5, and places on ring-like 11; Draft hood mouth 7 lower ends are provided with removable rubber washer 12, and closely contact with filter membrane clip 6; Spiral cover 8 is the inboard ring bodies that is provided with screw thread, overlaps draft hood mouth 7 backs and closely spins with main body 5.
Described connector rubber washer 10 is fixedly mounted on the root of the threaded line pipe 9 of connector 4 upper ends, and fixed installation can improve sealing property.
Described main rubber packing ring 14 is fixedly mounted on the annular table 11 of main body 5, and fixed installation can improve sealing property.
The air intake opening of described cyclone separator 2 is rounded, and diameter is 5 millimeters, can prevent sand grains or mud contamination sampling membrane that sampled point splashes.
Described cyclone separator 2 inwalls are smooth curved surfaces.
Described cyclone separator 2 is a metal material, and the aerodynamic diameter of the dust granules of being gathered is below 7.07 microns, and diameter is that the acquisition rate of 5 microns powder dust particle is 50%.
Claims (6)
1. high precision respirable dust sampling head, it is characterized in that: high precision respirable dust sampling head described in the utility model is made up of coarse particle gatherer, cyclone separator, support, connector, main body, filter membrane clip, draft hood mouth and spiral cover; Connector is a ring bodies, and its outside is equipped with support, and the connector lower end is provided with cyclone separator, and the coarse particle gatherer is socketed on the cyclone separator; The connector upper end is provided with threaded line pipe, and the threaded line pipe root is equipped with the connector rubber washer; Main body is a ring-like sleeve, and its lower end is provided with internal thread, and its upper end-face edge is provided with external thread, and its inside, upper end is provided with ring-like, and the main rubber packing ring is installed on the annular table, and the threaded line pipe of main body internal thread one end and connector upper end closely spins; Filter membrane clip is circular damascene structures, and the bottom is provided with the steel mesh pad, and filter membrane clip and steel mesh pad are closely chimeric, and filter membrane clip is embedded in the main body, and places on the ring-like platform; Draft hood mouth lower end is provided with removable rubber washer, and closely contacts with filter membrane clip; Spiral cover is the inboard ring bodies that is provided with screw thread, closely spins with main body after overlapping the draft hood mouth.
2. high precision respirable dust sampling head according to claim 1 is characterized in that: described connector rubber washer is fixedly mounted on the root of the threaded line pipe of connector upper end.
3. high precision respirable dust sampling head according to claim 1 is characterized in that: described main rubber packing ring is fixedly mounted on the annular table of main body.
4. high precision respirable dust sampling head according to claim 1, it is characterized in that: the air intake opening of described cyclone separator is rounded, and diameter is 5 millimeters.
5. high precision respirable dust sampling head according to claim 1 is characterized in that: described cyclone separator inwall is smooth curved surfaces.
6. high precision respirable dust sampling head according to claim 1, it is characterized in that: described cyclone separator is a metal material, the aerodynamic diameter of the dust granules of being gathered is below 7.07 microns, and diameter is that the acquisition rate of 5 microns powder dust particle is 50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200845361U CN201060119Y (en) | 2007-05-08 | 2007-05-08 | High precision respiratory dust sampling head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200845361U CN201060119Y (en) | 2007-05-08 | 2007-05-08 | High precision respiratory dust sampling head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060119Y true CN201060119Y (en) | 2008-05-14 |
Family
ID=39408598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200845361U Expired - Fee Related CN201060119Y (en) | 2007-05-08 | 2007-05-08 | High precision respiratory dust sampling head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201060119Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106662508A (en) * | 2014-06-04 | 2017-05-10 | 纳诺因斯帕克特公司 | Assembly for picking and transporting nanoobjects contained in aerosols, with a cassette the opening of which is secured during the picking |
| CN107655725A (en) * | 2017-09-15 | 2018-02-02 | 苏州西热节能环保技术有限公司 | A kind of super low concentration particle sampling pipette tips suitable for low temperature and high relative humidity environment |
| CN110954457A (en) * | 2019-12-23 | 2020-04-03 | 河北山宝环境工程有限责任公司 | Dust data intelligent acquisition device |
-
2007
- 2007-05-08 CN CNU2007200845361U patent/CN201060119Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106662508A (en) * | 2014-06-04 | 2017-05-10 | 纳诺因斯帕克特公司 | Assembly for picking and transporting nanoobjects contained in aerosols, with a cassette the opening of which is secured during the picking |
| CN107655725A (en) * | 2017-09-15 | 2018-02-02 | 苏州西热节能环保技术有限公司 | A kind of super low concentration particle sampling pipette tips suitable for low temperature and high relative humidity environment |
| CN110954457A (en) * | 2019-12-23 | 2020-04-03 | 河北山宝环境工程有限责任公司 | Dust data intelligent acquisition device |
| CN110954457B (en) * | 2019-12-23 | 2022-01-14 | 河北山宝环境工程有限责任公司 | Dust data intelligent acquisition device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Weihong Inventor after: Wang Limin Inventor after: Zheng Hongyan Inventor before: Chen Weihong Inventor before: Wang Limin Inventor before: Zheng Honghui |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: CHEN WEIHONG; WANG LIMIN; ZHENG HONGHUI TO: CHEN WEIHONG; WANG LIMIN; ZHENG HONGYAN |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20130508 |