CN105413471A - Chlorophyll filter - Google Patents
Chlorophyll filter Download PDFInfo
- Publication number
- CN105413471A CN105413471A CN201510870809.4A CN201510870809A CN105413471A CN 105413471 A CN105413471 A CN 105413471A CN 201510870809 A CN201510870809 A CN 201510870809A CN 105413471 A CN105413471 A CN 105413471A
- Authority
- CN
- China
- Prior art keywords
- cylindrical shell
- filtering
- filtering cover
- open front
- barrel
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/08—Flat membrane modules
- B01D63/087—Single membrane modules
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a chlorophyll filter, comprising a transparent barrel, a push rod, a filtering membrane and a filtering cover, wherein a rubber plug is arranged at the front end of the push rod and is located in the barrel, the outer wall of the rubber plug is in sliding contact with the inner wall of the barrel, the rear end of the push rod stretches out from the rear opening of the barrel, the filtering membrane is circular and is arranged on the front opening of the barrel, the filtering cover covers on the front opening of the barrel, a liquid outlet is formed at the front end of the filtering cover, and scales are marked on the barrel from front to back. The filtering membrane of the chlorophyll filter is located in the barrel, so that the contact area between the filtering membrane and water is increased, blockage of the filtering membrane is prevented, filtering pressure is lowered, impact of pressure to the filtering membrane and the filtering cover is relieved, and the filtering membrane is prevented from being damaged by impact or the filtering cover is prevented from being moved out by impact due to high filtering pressure. The filtering cover is in threaded connection with the barrel, the connection is firm, and the sealing performance is good, so that the filtering volume can be precisely measured, and the measurement precision is ensured.
Description
Technical field
The present invention relates to a kind of filter, specifically, is a kind of device leached from water by chlorophyll.
Background technology
In water-quality determination, by detecting the content of water Determination of Chlorophyll, thus draw algae content in the water for evaluating water quality.According to the requirement of the mensuration AAS SL88-194 of China's professional standard Determination of Chlorophyll, when carrying out chlorophyll and gathering, the filter used is generally syringe filters, syringe filters is made up of two parts, remove the ordinary syringe of injection needle and detachable filtering head, in use, connect in the hole of the injection head of syringe insertion filtering head.
Because the aperture of filter membrane is less, and the surface area of filter membrane is also little, when the biomass in water body is higher or turbidity is large, the filter opening of filter membrane can be caused to block, increase filter pressure, cause syringe and filtering head joining place to leak, filter volume inaccurate, reduce the final precision measured, larger filter pressure even causes filtering head to be rushed out, chlorophyll collection failure, filter membrane is lost, wasting manpower and material resources.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, devise a kind of new chlorophyll filter.
Chlorophyll filter of the present invention, comprise transparent cylindrical shell, push rod, filter membrane, filtering cover, the front end of push rod is provided with rubber stopper, and rubber stopper is positioned at cylindrical shell, and outer wall and the cylinder inboard wall of rubber stopper slidingly contact, the rear end of push rod is stretched out from the after-opening of cylindrical shell, filter membrane is circular, and be arranged in the open front of cylindrical shell, filtering cover covers in the open front of cylindrical shell, filtering cover front end is provided with liquid outlet, and cylindrical shell is provided with scale along the longitudinal direction.
Preferably, the diameter of filter membrane is identical with the external diameter of cylindrical shell, and filter membrane is attached on the edge of cylindrical shell open front, and the outer wall of cylindrical shell and the inwall of filtering cover are threaded connection, and filter membrane withstands on the inwall of filtering cover caping by the open front of cylindrical shell.
Preferably, the open front of cylindrical shell is provided with annular stepped groove, filter membrane is placed in annular stepped groove, and filtering cover back edge is provided with annular recess, the sidewall of cylindrical shell open front is arranged in the annular recess of filtering cover rear end, and filter membrane is pressed in the bottom land of annular stepped groove by filtering cover rear end.
Preferably, the groove width of annular recess is less than the thickness of cylindrical shell open front sidewall, and the sidewall of cylindrical shell open front is inserted in the annular recess of filtering cover rear end.
Preferably, the sidewall of cylindrical shell open front and the annular recess of filtering cover rear end are threaded connection.
The invention has the beneficial effects as follows: the filter membrane of chlorophyll filter is positioned at cylindrical shell, add the contact area of filter membrane and water, prevent filter membrane from blocking, reduce filter pressure, alleviate the impact of pressure to filter membrane and filtering cover, prevent larger filter pressure broken through by filter membrane or gone out by filtering cover.Filtering cover and cylindrical shell are threaded connection, stable connection, good seal performance, make filtration cubing accurate, ensure that the precision of measurement.Filter membrane is pressed on filtering cover or on cylindrical shell, fixation, avoids, in filter process, floatation of filter film occurs, and causes filtration inefficiencies.
Accompanying drawing explanation
Accompanying drawing 1 is the sectional structure chart of chlorophyll filter embodiment one;
Accompanying drawing 2 is the sectional structure chart of chlorophyll filter embodiment two.
Detailed description of the invention
Chlorophyll filter of the present invention, as shown in Fig. 1 to 2, comprise transparent cylindrical shell 1, push rod 2, filter membrane 3, filtering cover 4, the front end of push rod 2 is provided with rubber stopper 5, and rubber stopper 5 is positioned at cylindrical shell 1, outer wall and cylindrical shell 1 inwall of rubber stopper 5 slidingly contact, the rear end of push rod 2 is stretched out from the after-opening 6 of cylindrical shell 1, and filter membrane 3 is circular, is arranged in the open front 7 of cylindrical shell 1, filtering cover 4 covers in the open front 7 of cylindrical shell 1, and filtering cover 7 front end is provided with liquid outlet 8.
Cylindrical shell 1 can have various ways with the connection of filtering cover 4 and the placement of filter membrane 3.
Embodiment one:
As shown in Figure 1, the diameter of filter membrane 3 is identical with the external diameter of cylindrical shell 1, and filter membrane 3 is attached on the edge of cylindrical shell 1 open front 7, and the outer wall of cylindrical shell 1 and the inwall of filtering cover 4 are threaded connection, and filter membrane withstands on the inwall of filtering cover 4 caping by the open front 7 of cylindrical shell 1.
Embodiment two:
As shown in Figure 2, the open front 7 of cylindrical shell 1 is provided with annular stepped groove 8, filter membrane 3 is placed in annular stepped groove 8, filtering cover 4 back edge is provided with annular recess 9, the sidewall of cylindrical shell 1 open front 7 is arranged in the annular recess 9 of filtering cover 4 rear end, and filter membrane 3 is pressed in the bottom land of annular stepped groove 8 by filtering cover 4 rear end.
Wherein, cylindrical shell 1 open front 7 and filtering cover 4 also can have two kinds of connected modes.
The first: the groove width of annular recess 9 is less than the thickness of cylindrical shell 1 open front 7 sidewall, and the sidewall of cylindrical shell 1 open front 7 is inserted in the annular recess 9 of filtering cover 4 rear end.
The second: the sidewall of cylindrical shell 1 open front 7 and the annular recess 9 of filtering cover 4 rear end are threaded connection.
Before using, taken out in cylindrical shell 1 by push rod 2, the liquid that will carry out filtering adds from the after-opening 6 of cylindrical shell 1, push rod 2 is filled in cylindrical shell 1, promote push rod 2 to be released by the liquid outlet 8 of the liquid in cylindrical shell 1 from filtering cover 7, liquid stream filter membrane 3, the chlorophyll that needs are leached is stayed on filter membrane 3.
Claims (5)
1. a chlorophyll filter, it is characterized in that, comprise transparent cylindrical shell (1), push rod (2), filter membrane (3), filtering cover (4), the front end of push rod (2) is provided with rubber stopper (5), rubber stopper (5) is positioned at cylindrical shell (1), outer wall and cylindrical shell (1) inwall of rubber stopper (5) slidingly contact, the rear end of push rod (2) is stretched out from the after-opening (6) of cylindrical shell (1), filter membrane (3) is circular, be arranged in the open front (7) of cylindrical shell (1), filtering cover (4) covers in the open front (7) of cylindrical shell (1), filtering cover (7) front end is provided with liquid outlet (8), (1) is provided with scale to cylindrical shell along the longitudinal direction.
2. chlorophyll filter according to claim 1, it is characterized in that, the diameter of filter membrane (3) is identical with the external diameter of cylindrical shell (1), filter membrane (3) is attached on the edge of cylindrical shell (1) open front (7), the outer wall of cylindrical shell (1) and the inwall of filtering cover (4) are threaded connection, and filter membrane withstands on the inwall of filtering cover (4) caping by the open front (7) of cylindrical shell (1).
3. chlorophyll filter according to claim 1, it is characterized in that, the open front (7) of cylindrical shell (1) is provided with annular stepped groove (8), filter membrane (3) is placed in annular stepped groove (8), filtering cover (4) back edge is provided with annular recess (9), the sidewall of cylindrical shell (1) open front (7) is arranged in the annular recess (9) of filtering cover (4) rear end, and filter membrane (3) is pressed in the bottom land of annular stepped groove (8) by filtering cover (4) rear end.
4. chlorophyll filter according to claim 3, it is characterized in that, the groove width of annular recess (9) is less than the thickness of cylindrical shell (1) open front (7) sidewall, and the sidewall of cylindrical shell (1) open front (7) is inserted in the annular recess (9) of filtering cover (4) rear end.
5. chlorophyll filter according to claim 3, is characterized in that, the sidewall of cylindrical shell (1) open front (7) and the annular recess (9) of filtering cover (4) rear end are threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510870809.4A CN105413471A (en) | 2015-11-26 | 2015-11-26 | Chlorophyll filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510870809.4A CN105413471A (en) | 2015-11-26 | 2015-11-26 | Chlorophyll filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105413471A true CN105413471A (en) | 2016-03-23 |
Family
ID=55492276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510870809.4A Pending CN105413471A (en) | 2015-11-26 | 2015-11-26 | Chlorophyll filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105413471A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238884A (en) * | 2020-01-21 | 2020-06-05 | 力合科技（湖南）股份有限公司 | Filter membrane fixed knot constructs, sample stove and OCEC analysis appearance |
-
2015
- 2015-11-26 CN CN201510870809.4A patent/CN105413471A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238884A (en) * | 2020-01-21 | 2020-06-05 | 力合科技（湖南）股份有限公司 | Filter membrane fixed knot constructs, sample stove and OCEC analysis appearance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160323 |