CN203908825U - Membrane support for placing smoke dust sampling filter membrane - Google Patents
Membrane support for placing smoke dust sampling filter membrane Download PDFInfo
- Publication number
- CN203908825U CN203908825U CN201420295078.6U CN201420295078U CN203908825U CN 203908825 U CN203908825 U CN 203908825U CN 201420295078 U CN201420295078 U CN 201420295078U CN 203908825 U CN203908825 U CN 203908825U
- Authority
- CN
- China
- Prior art keywords
- filter membrane
- film
- membrane
- closed cavity
- folder
- 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 - Lifetime
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 78
- 238000005070 sampling Methods 0.000 title claims abstract description 23
- 239000000428 dust Substances 0.000 title claims abstract description 20
- 239000000779 smoke Substances 0.000 title claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 16
- 210000001320 hippocampus Anatomy 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 5
- -1 draft tube (6) Substances 0.000 claims description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a filter membrane support and in particular relates to a membrane support for placing a smoke dust sampling filter membrane. The filter membrane support is characterized in that the filter membrane is fixed in a closed cavity through a fixing device, and the closed cavity is separated into an upper cavity and a lower cavity; and a screen is arranged on the lower part of the filter membrane. Therefore, the membrane support disclosed by the utility model has the advantages that gas only can be guided out of the closed cavity through the filter membrane, and the sampling precision is improved; according to the screen, deformation of the filter membrane is limited, and the filter membrane is prevented from being broken; and moreover, the filter membrane is fixed through a membrane clip in close fit with an inner wall of the closed cavity, so that the filter membrane is stably fixed, and the membrane support is convenient to use.
Description
Technical field
The utility model relates to the holder of a kind of filter membrane film, especially relates to a kind ofly for placing the film holder of smoke dust sampling filter membrane, belongs 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 fixedly passes through in periphery gap from filter membrane, affects sampling precision; Finally, when air-flow is stronger, the easy distortion of filter membrane is even broken.
Utility model content
The deficiency existing for prior art, technical problem to be solved in the utility model is provide the film holder of the smoke dust sampling filter membrane that a kind of precision is higher, and when air-flow is stronger, filter membrane placed thereon to be difficult for breaking.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals:
For placing a film holder for smoke dust sampling filter membrane, comprising: film holder, for the fixing film stationary installation of filter membrane, draft tube, film folder upper cover, connecting pipe, wherein: film holder presss from both sides upper cover with film and forms 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 for placing the film holder of smoke dust sampling filter membrane, in the bottom of described filter membrane, also comprise a web plate, 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, by circular membrane clip sheet cover in the inner.
Optimize, above-mentioned for placing the film holder of smoke dust sampling filter membrane, described closed cavity top is spheroidal.
Accompanying drawing explanation
Fig. 1 is the cut-open view of the utility model film holder.
Fig. 2 is the cut-open view of the utility model film folder.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model 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, from connecting pipe 8, discharges, 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.When filter membrane 5 is impacted by gas and during distortion, 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, by circular membrane clip sheet 402 covers in the inner, described filter membrane 5 is between film folder subiculum 401 and film clip sheet 402, the fixedly 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 utility model 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; By the web plate under filter membrane, limited the distortion of filter membrane, prevented that filter membrane from breaking; By the film with closed cavity inwall coupling is clamping, determine filter membrane, make filter membrane fixing more firm, the while is also easy to use.
The foregoing is only preferred embodiment of the present utility model, is only illustrative for the utility model, 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 utility model claim, revise, and even equivalence, but all will fall in protection domain of the present utility model.
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 fixing film stationary installation (4) of 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, in the bottom of described film stationary installation (4), also comprise a web plate (3), 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, by circular membrane clip sheet (402) cover 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 |
|---|---|---|---|
| CN201420295078.6U CN203908825U (en) | 2014-06-04 | 2014-06-04 | Membrane support for placing smoke dust sampling filter membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420295078.6U CN203908825U (en) | 2014-06-04 | 2014-06-04 | Membrane support for placing smoke dust sampling filter membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203908825U true CN203908825U (en) | 2014-10-29 |
Family
ID=51783088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420295078.6U Expired - Lifetime CN203908825U (en) | 2014-06-04 | 2014-06-04 | Membrane support for placing smoke dust sampling filter membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203908825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006991A (en) * | 2014-06-04 | 2014-08-27 | 武汉市天虹仪表有限责任公司 | Membrane supporter for containing smoke sampling filter membrane |
-
2014
- 2014-06-04 CN CN201420295078.6U patent/CN203908825U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006991A (en) * | 2014-06-04 | 2014-08-27 | 武汉市天虹仪表有限责任公司 | Membrane supporter for containing smoke sampling filter membrane |
| CN104006991B (en) * | 2014-06-04 | 2017-03-29 | 武汉市天虹仪表有限责任公司 | A kind of film support for placing smoke dust sampling filter membrane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |
|
| CX01 | Expiry of patent term |