CN104006991A - Membrane supporter for containing smoke sampling filter membrane - Google Patents
Membrane supporter for containing smoke sampling filter membrane Download PDFInfo
- Publication number
- CN104006991A CN104006991A CN201410244600.2A CN201410244600A CN104006991A CN 104006991 A CN104006991 A CN 104006991A CN 201410244600 A CN201410244600 A CN 201410244600A CN 104006991 A CN104006991 A CN 104006991A
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- Prior art keywords
- filter membrane
- film
- membrane
- folder
- closed cavity
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Abstract
The invention discloses a membrane supporter for a filter membrane, and in particular relates to a membrane supporter for containing a smoke sampling filter membrane. The membrane supporter is characterized in that the filter membrane is fixed in an airtight cavity by a fixing device and used for separating the airtight cavity into an upper cavity and a lower cavity, and a mesh plate is arranged on the lower part of the filter membrane. Therefore, the membrane supporter disclosed by the invention has the following advantages that gas can be only led out from the airtight cavity through the filter membrane, and thus the sampling accuracy is improved; the deformation of the filter membrane is limited by the mesh plate, and thus the breakage of the filter membrane is prevented; the filter membrane is fixed by a membrane clamp which is in close fit with the inner wall of the airtight cavity, and thus the filter membrane is relatively stable in fixation, and convenient to use.
Description
Technical field
The present invention relates to the holder of a kind of filter membrane film, especially relate to a kind ofly for placing the film holder of smoke dust sampling filter membrane, belong to environment monitoring field.
Background technology
At present, existing dust sampler, though kind is more, ultimate principle is substantially identical, before sampling, first weigh up filter membrane weight, manually filter membrane is contained on sampling head again, under the effect of the pump or fan of bleeding, the air being sampled, by sampling head, filter membrane, through air intake duct, flowmeter or vortex flow sensors, from bleeding, pump or fan is discharged.Airborne dust is trapped on filter membrane, observes flowmeter, calculates volume of air, manually changes filter membrane, weighs up filter membrane weight, calculates dust weight, thereby measures the content of dust in air.
Such dust sampler, though simple in structure, there is following problem: and first, filter membrane position on sampling head is unfixing, easily impact sampling; Secondly, gas easily passes through from the fixing periphery of filter membrane gap, affects sampling precision; Finally, in the time that air-flow is stronger, the easy distortion of filter membrane is even broken.
Summary of the invention
The deficiency existing for prior art, technical matters to be solved by this invention is provide the film holder of the smoke dust sampling filter membrane that a kind of precision is higher, and in the time that air-flow is stronger, filter membrane placed thereon to be difficult for breaking.
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals:
For placing a film holder for smoke dust sampling filter membrane, comprising: film holder, for the film stationary installation of fixing filter membrane, draft tube, film folder upper cover, connecting pipe, wherein: film holder and film folder upper cover form a closed cavity; Film stationary installation is positioned on the inwall of closed cavity, and described closed cavity can be separated into upper plenum and lower cavity after film stationary installation packs filter membrane into; Connecting pipe communicates with airtight lower cavity; Draft tube is positioned on film folder and covers, and communicates with upper plenum.
Optimize, above-mentionedly also comprise a web plate for placing the film holder of smoke dust sampling filter membrane in the bottom of described filter membrane, described web plate is fixed in closed cavity bottom by a sealing gasket.
Optimize, above-mentioned for placing the film holder of smoke dust sampling filter membrane, described film stationary installation is one and closely cooperates with closed cavity inwall and dismountable film folder being positioned on web plate.
Optimize, above-mentioned for placing the film holder of smoke dust sampling filter membrane, described film folder comprises circular membrane folder subiculum, circular membrane clip sheet, and described film folder subiculum cross section is L-type, and circular membrane clip sheet is overlapped in the inner.
Optimize, above-mentioned for placing the film holder of smoke dust sampling filter membrane, described closed cavity top is spheroidal.
Brief description of the drawings
Fig. 1 is the cut-open view of film holder of the present invention.
Fig. 2 is the cut-open view of film folder of the present invention.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.In figure, film holder 1, sealing gasket 2, web plate 3, film stationary installation 4, filter membrane 5, film folder subiculum 401, film clip sheet 402, draft tube 6, film folder upper cover 7, connecting pipe 8, closed cavity 9, upper plenum 901, lower cavity 902.
The holder of film shown in Fig. 1 comprises: film holder 1, draft tube 6, film folder upper cover 7, connecting pipe 8, wherein, film holder 1 forms a closed cavity 9 with film folder upper cover 7, and film stationary installation 4 is positioned on the inwall of closed cavity 9, and described closed cavity can be separated into upper plenum 901 and lower cavity 902 after film stationary installation 4 packs filter membrane into; Connecting pipe 8 communicates with closed cavity bottom 902, and draft tube 6 is positioned on film folder upper cover 7, and communicates with airtight upper plenum 901.
In use, filter membrane 5 is put into film stationary installation 4, gas enters closed cavity 9 from draft tube 6, by filter membrane 5, discharges from connecting pipe 8, and the particle in gas is stayed and will be stayed on filter membrane.
In the above-described embodiments, also have a web plate 3 being fixed on by sealing gasket 2 on lower cavity 902 inwalls in the bottom of film stationary installation 4, wherein, the gap of filter membrane 5 and web plate 3 should be less than the amplitude peak of being out of shape when filter membrane 5 is subject to gas punching press.Impact and when distortion when filter membrane 5 is subject to gas, web plate 3 can limit the amplitude of deformation of filter membrane 3, to prevent that filter membrane from breaking.
In the above-described embodiments, described film stationary installation 4 is one and closely cooperates with closed cavity 9 inwalls and dismountable film on web plate 3 folder that is positioned over.In use, film folder 4 is taken out, filter membrane is put into film folder, and then film is folded up into closed cavity.
The above-mentioned folder of the film for fixing filter membrane preferably comprises circular membrane folder subiculum 401, circular membrane clip sheet 402, described film folder subiculum 401 cross sections are " L " type, circular membrane clip sheet 402 is overlapped in the inner, described filter membrane 5 is between film folder subiculum 401 and film clip sheet 402, the fixing periphery of filter membrane 5 and film clip sheet and film folder subiculum close contact, thus make filter membrane 5 fixing firm.
In the above-described embodiments, described closed cavity top 901 is preferably spheroidal, thereby makes cavity inner wall form a downward pressure to air-flow, makes gas pass through sooner filter membrane.
The present invention is fixed on filter membrane in closed cavity by filter membrane stationary installation, and closed cavity is divided into the part of upper and lower two sealings, and gas can only be derived by filter membrane in closed cavity, has improved sampling precision; Limit the distortion of filter membrane by the web plate under filter membrane, prevented that filter membrane from breaking; By determine filter membrane with the film of closed cavity inwall coupling is clamping, make filter membrane fixing more firm, the while is also easy to use.
The foregoing is only preferred embodiment of the present invention, is only illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and in the spirit and scope that limit, can carry out many changes to it in the claims in the present invention, amendment, and even equivalence, but all will fall within the scope of protection of the present invention.
Claims (5)
1. for placing a film holder for smoke dust sampling filter membrane, it is characterized in that, comprising: film holder (1), for the film stationary installation (4) of fixing filter membrane, draft tube (6), film folder upper cover (7), connecting pipe (8), wherein:
Film holder (1) forms a closed cavity (9) with film folder upper cover (7);
Film stationary installation (4) is positioned on the inwall of closed cavity (9), and described closed cavity (9) can be separated into upper plenum (901) and lower cavity (902) after film stationary installation (4) packs filter membrane into;
Connecting pipe (8) communicates with airtight lower cavity (902);
It is upper that draft tube (6) is positioned at film folder upper cover (7), and communicate with upper plenum (901).
2. as claimed in claim 1 for placing the film holder of smoke dust sampling filter membrane, it is characterized in that, also comprise a web plate (3) in the bottom of described film stationary installation (4), described web plate (3) is fixed in closed cavity bottom (902) by a sealing gasket (2).
3. as claimed in claim 2 for placing the film holder of smoke dust sampling filter membrane, it is characterized in that, described film stationary installation (4) is one and closely cooperates with closed cavity (9) inwall and dismountable film folder being positioned on web plate (3).
4. as claimed in claim 3 for placing the film holder of smoke dust sampling filter membrane, it is characterized in that, described film folder comprises circular membrane folder subiculum (401), circular membrane clip sheet (402), described film folder subiculum (401) cross section is L-type, and circular membrane clip sheet (402) is overlapped in the inner.
5. as claimed in claim 1 for placing the film holder of smoke dust sampling filter membrane, it is characterized in that described closed cavity top (901) is spheroidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410244600.2A CN104006991B (en) | 2014-06-04 | 2014-06-04 | A kind of film support for placing smoke dust sampling filter membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410244600.2A CN104006991B (en) | 2014-06-04 | 2014-06-04 | A kind of film support for placing smoke dust sampling filter membrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104006991A true CN104006991A (en) | 2014-08-27 |
| CN104006991B CN104006991B (en) | 2017-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410244600.2A Active CN104006991B (en) | 2014-06-04 | 2014-06-04 | A kind of film support for placing smoke dust sampling filter membrane |
Country Status (1)
| Country | Link |
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| CN (1) | CN104006991B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104570040A (en) * | 2015-01-21 | 2015-04-29 | 中国科学院上海应用物理研究所 | On-line monitoring system and method for radioactive gas and radioactive aerosol |
| CN104596807A (en) * | 2015-01-21 | 2015-05-06 | 中国科学院上海应用物理研究所 | Sampling measuring device and sampling measuring method of radioactive aerosol |
| CN108627361A (en) * | 2017-03-26 | 2018-10-09 | 中国环境管理干部学院 | A kind of PM5, PM2.5 sampling head TSP collectors take the manufacture and use method of film device |
| CN112588041A (en) * | 2020-12-09 | 2021-04-02 | 河北快特环保科技有限公司 | Filter membrane clamp for fluoride automatic determinator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104570040A (en) * | 2015-01-21 | 2015-04-29 | 中国科学院上海应用物理研究所 | On-line monitoring system and method for radioactive gas and radioactive aerosol |
| CN104596807A (en) * | 2015-01-21 | 2015-05-06 | 中国科学院上海应用物理研究所 | Sampling measuring device and sampling measuring method of radioactive aerosol |
| CN104596807B (en) * | 2015-01-21 | 2017-05-17 | 中国科学院上海应用物理研究所 | Sampling measuring device and sampling measuring method of radioactive aerosol |
| CN104570040B (en) * | 2015-01-21 | 2017-10-27 | 中国科学院上海应用物理研究所 | A kind of on-line monitoring method of radgas and radioaerosol |
| CN108627361A (en) * | 2017-03-26 | 2018-10-09 | 中国环境管理干部学院 | A kind of PM5, PM2.5 sampling head TSP collectors take the manufacture and use method of film device |
| CN108627361B (en) * | 2017-03-26 | 2024-03-05 | 河北环境工程学院 | Manufacturing and using method of PM5 and PM2.5 sampling head TSP collector film taking device |
| CN112588041A (en) * | 2020-12-09 | 2021-04-02 | 河北快特环保科技有限公司 | Filter membrane clamp for fluoride automatic determinator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104006991B (en) | 2017-03-29 |
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Effective date of registration: 20200715 Address after: 430223, No. 11 North Garden Road, Xinhua high school, Hubei, Wuhan, East Lake Patentee after: Wuhan Geyun Environmental Protection Testing Technology Service Co., Ltd Address before: 430223 research and development building, Yuhong environmental protection science and Technology Industrial Park, 11 North Xinhua Garden Road, Wuhan, Hubei, East Lake 501, China Patentee before: Wuhan Tianhong Instruments Co.,Ltd. |
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