CN210409708U - Multilayer suction filtration filter core and suction filtration device - Google Patents
Multilayer suction filtration filter core and suction filtration device Download PDFInfo
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- CN210409708U CN210409708U CN201921298478.1U CN201921298478U CN210409708U CN 210409708 U CN210409708 U CN 210409708U CN 201921298478 U CN201921298478 U CN 201921298478U CN 210409708 U CN210409708 U CN 210409708U
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Abstract
The utility model relates to a multilayer suction filtration filter element and a suction filtration device, which belong to the field of laboratory equipment, wherein the filter element comprises a first suction backing plate, a middle suction filtration backing plate and a bottom suction filtration backing plate; first take out backing plate, middle suction filtration backing plate and bottom suction filtration backing plate can loop through the nut from the top down and connect, will the filter core is installed on the suction filtration device, suction filtration device can realize suction filtration once to the sea water sample of getting, and the granular material of different diameters is gone out in grades, easy operation, labour saving and time saving.
Description
Technical Field
The invention belongs to the field of laboratory equipment, and particularly relates to a multilayer suction filtration filter element and a suction filtration device.
Background
In the process of scientific research on biogenic factors in the sea area, water samples are often required to be filtered, and different indexes are respectively measured. For example: when the indexes of chlorophyll are measured in stages, the same water sample needs to be filtered step by step according to the aperture of the filter membrane, the filter membranes with the apertures of 20,3 and 0.45um are respectively replaced, and when the filter membrane is replaced and the water sample in the filter is transferred to another container, trace water sample loss always occurs, so that experimental errors are caused; and the number of samples is large in the investigation, and a large amount of time is wasted by scientific research personnel due to simple repeated operation. In addition, when different indexes of the same water sample are subjected to suction filtration, filter membranes with different diameters are needed. For example: the diameter of the conventional chlorophyll filter membrane is 50 mm; the filter membrane of POM (particle organic matter) is a GF/F membrane with the diameter of 47 mm; the POC (particulate organic carbon) filter membrane was a GF/F membrane with a diameter of 25 mm. In the conventional method, different filters are prepared for different pore size filter membranes.
Disclosure of Invention
The invention aims to provide a multilayer suction filtration filter element and a suction filtration device, wherein the filter element is arranged on the suction filtration device to realize one-time suction filtration of a taken seawater sample, and granular substances with different diameters are classified.
The invention is realized by the following technical scheme:
a multilayer suction filtration filter element comprises a first suction base plate, a middle suction filtration base plate and a bottom suction filtration base plate; the first suction filtration backing plate comprises a first suction filtration backing plate main body and a first annular enclosing wall, one end of the first annular enclosing wall is vertically and fixedly connected with the first suction filtration backing plate main body, and the outer surface of the first annular enclosing wall is provided with screws; the middle of the first suction filtration base plate main body is a circular screen surface;
the middle suction filtration base plate comprises a middle suction filtration base plate main body, a middle annular groove wall and a middle annular enclosing wall; the wall of the middle annular groove is positioned on the upper surface of the middle suction filtration base plate main body, the wall of the middle annular groove surrounds to form a groove, and the middle of the groove is a circular screen surface; the inner surface of the wall of the middle annular groove is provided with threads matched with the screws on the first annular enclosing wall, the lower surface of the middle suction filtration backing plate main body is provided with the middle annular enclosing wall, one end of the middle annular enclosing wall is vertically and fixedly connected with the middle suction filtration backing plate main body, and the outer surface of the middle annular enclosing wall is provided with the screws;
the bottom suction filtration backing plate comprises a bottom suction filtration backing plate main body and a bottom suction filtration backing plate annular groove wall, and the inner surface of the bottom suction filtration backing plate annular groove wall is provided with threads matched with the screws on the surface of the middle annular enclosing wall; the annular groove wall of the bottom suction filtration base plate surrounds the middle of the groove to form a circular screen-shaped surface.
Furthermore, more than one middle suction filtration base plate is arranged.
Further, the diameters of the first suction filtration base plate, the middle suction filtration base plate and the bottom suction filtration base plate main body are 48-52 mm.
Furthermore, the multilayer suction filtration filter element is also provided with a gasket matched with the first suction filtration base plate, the middle suction filtration base plate and the bottom suction filtration base plate for use, the gasket can be attached to the grooves of the first suction filtration base plate main body, the middle suction filtration base plate main body and the bottom suction filtration base plate main body, a round hole is formed in the middle of the gasket, and the diameter of the round hole is 20-24 mm; the diameter of the gasket is equal to the diameter of the grooves of the first suction filtration base plate, the middle suction filtration base plate and the bottom suction filtration base plate.
The invention also provides a suction filtration device using the filter element.
When a large-diameter filter membrane is used for suction filtration, filter membranes with different apertures are sequentially paved on each backing plate of the device from top to bottom according to the particle diameter of a substance to be subjected to suction filtration as required, then a first annular enclosing wall on a first suction filtration backing plate is screwed into the middle annular groove wall of a middle suction filtration backing plate, meanwhile, the bottom end of the first annular enclosing wall presses the filter membrane on the middle suction filtration backing plate body, and the like is performed until the bottom suction filtration plate is screwed down; when using minor diameter suction filtration membrane suction filtration, put the minor diameter's of different apertures filter membrane in the center of suction filtration board, then cover the gasket, at last screw in first suction filtration backing plate in the middle annular groove of middle suction filtration backing plate, gasket on the middle suction filtration backing plate main part is pushed down to first suction filtration backing plate simultaneously, and so on.
Compared with the prior art, the invention has the beneficial effects that:
when the device disclosed by the invention is used for carrying out suction filtration, the classification of particles with various diameters in a water sample can be completed only by carrying out suction filtration once, and the device is simple to operate, time-saving and labor-saving.
Drawings
Fig. 1 is a bottom view of the first suction pad plate: 1. the filter comprises a first suction filtration base plate main body, a first annular enclosing wall, a circular sieve mesh surface and a second suction filtration base plate main body, wherein the first suction filtration base plate main body is 2;
FIG. 2 is a cross-sectional view of a first suction pad plate: 1. a first suction filtration backing plate main body, 2, a first annular enclosing wall,
FIG. 3 is a cross-sectional view of an intermediate suction pad plate: 4. a middle suction filtration backing plate main body 5, a middle annular groove wall 6 and a middle annular enclosing wall;
FIG. 4 is a cross-sectional view of a bottom suction filtration pad: 7. a bottom suction filtration base plate main body 8 and a bottom annular enclosing wall;
FIG. 5 is a top view of a gasket: 9. a circular hole.
FIG. 6 is a schematic diagram of the structure of the device in the use state: 10. water sample container 11, connecting device 12, filter element 13, filtrate container.
Detailed Description
The technical solution of the present invention is further explained by the following examples, but the scope of the present invention is not limited in any way by the examples.
Example 1
A multilayer suction filtration filter element comprises a first suction base plate, a middle suction filtration base plate and a bottom suction filtration base plate; the first suction filtration backing plate comprises a first suction filtration backing plate main body 1 and a first annular enclosing wall 2, as shown in figure 1-2, one end of the first annular enclosing wall is vertically and fixedly connected with the first suction filtration backing plate main body, and the outer surface of the first annular enclosing wall is provided with screws; the middle of the first suction filtration base plate main body is a circular screen surface 3;
the middle suction filtration backing plate comprises a middle suction filtration backing plate main body 4, a middle annular groove wall 5 and a middle annular enclosing wall 5; as shown in fig. 3, the wall of the middle annular groove is positioned on the upper surface of the middle suction filtration base plate main body, the wall of the middle annular groove surrounds to form a groove, and the middle of the groove is a circular screen surface; the inner surface of the wall of the middle annular groove is provided with threads matched with the screws on the first annular enclosing wall, the lower surface of the middle suction filtration backing plate main body is provided with the middle annular enclosing wall, one end of the middle annular enclosing wall is vertically and fixedly connected with the middle suction filtration backing plate main body, and the outer surface of the middle annular enclosing wall is provided with the screws;
the bottom suction filtration base plate comprises a bottom suction filtration base plate main body 7 and a bottom suction filtration base plate annular groove wall 8, and as shown in fig. 4, the inner surface of the bottom suction filtration base plate annular groove wall is provided with threads matched with the screws on the surface of the middle annular enclosing wall; the annular groove wall of the bottom suction filtration base plate surrounds the middle of the groove to form a circular screen-shaped surface.
The number of the middle suction filtration base plates is 1.
The diameters of the first suction filtration base plate, the middle suction filtration base plate and the bottom suction filtration base plate main body are 52 mm.
The multilayer suction filtration device is also provided with a gasket matched with the first suction filtration base plate, the middle suction filtration base plate and the bottom suction filtration base plate for use, as shown in figure 5, the gasket can be attached in grooves of the first suction filtration base plate main body, the middle suction filtration base plate main body and the bottom suction filtration base plate main body, a round hole 9 is arranged in the middle of the gasket, and the diameter of the round hole is 24 mm; the diameter of the gasket is equal to the diameter of the grooves of the first suction filtration base plate, the middle suction filtration base plate and the bottom suction filtration base plate.
When the large-diameter filter membrane is used for carrying out suction filtration to measure chlorophyll in a grading manner, as shown in fig. 6, filter membranes with the apertures of 20,3 and 0.45um are sequentially paved on each backing plate of the device according to the particle diameter of a substance to be subjected to suction filtration from top to bottom, then a first annular enclosing wall on a first suction filtration backing plate is screwed into a middle annular groove of a middle suction filtration backing plate, meanwhile, the bottom end of the first annular enclosing wall presses the filter membrane on a middle suction filtration backing plate body, and the like until the bottom suction filtration plate is screwed tightly; the filter element of the embodiment is arranged on a suction filtration device, a first suction filtration base plate is abutted against the opening of a water sample container 10, the opening of the water sample container presses a filter membrane on the first suction filtration base plate of the filter element 12, the bottom surface of a bottom suction filtration base plate is pressed on the opening of a filtrate container, the upper end of a connecting device 11 is clamped on the opening of the water sample container, and the lower end of the connecting device is connected to the neck of the filtrate container 13 through a nut, so that the whole device is sealed. And placing the water sample in a container on the uppermost layer for suction filtration, and performing suction filtration once to obtain filter membranes with 3 apertures to be measured.
When using minor diameter suction filtration membrane suction filtration, put the minor diameter's of different apertures filter membrane in the center of suction filtration board, then cover the gasket, at last screw in first suction filtration backing plate in the middle annular groove of middle suction filtration backing plate, gasket on the middle suction filtration backing plate main part is pushed down to first suction filtration backing plate simultaneously, and so on.
Claims (5)
1. A multilayer suction filtration filter element is characterized by comprising a first suction pad plate, a middle suction filtration pad plate and a bottom suction filtration pad plate; the first suction filtration backing plate comprises a first suction filtration backing plate main body and a first annular enclosing wall, one end of the first annular enclosing wall is vertically and fixedly connected with the first suction filtration backing plate main body, and the outer surface of the first annular enclosing wall is provided with screws; the middle of the first suction filtration base plate main body is a circular screen surface;
the middle suction filtration base plate comprises a middle suction filtration base plate main body, a middle annular groove wall and a middle annular enclosing wall; the wall of the middle annular groove is positioned on the upper surface of the middle suction filtration base plate main body, the wall of the middle annular groove surrounds to form a groove, and the middle of the groove is a circular screen surface; the inner surface of the wall of the middle annular groove is provided with threads matched with the screws on the first annular enclosing wall, the lower surface of the middle suction filtration backing plate main body is provided with the middle annular enclosing wall, one end of the middle annular enclosing wall is vertically and fixedly connected with the middle suction filtration backing plate main body, and the outer surface of the middle annular enclosing wall is provided with the screws;
the bottom suction filtration backing plate comprises a bottom suction filtration backing plate main body and a bottom suction filtration backing plate annular groove wall, and the inner surface of the bottom suction filtration backing plate annular groove wall is provided with threads matched with the screws on the surface of the middle annular enclosing wall; the annular groove wall of the bottom suction filtration base plate surrounds the middle of the groove to form a circular screen-shaped surface.
2. The filter element of claim 1, wherein more than one intermediate suction filter pad is provided.
3. The multilayer suction filtration filter element of claim 1, wherein the first suction filtration backing plate, the middle suction filtration backing plate and the bottom suction filtration backing plate main body have a diameter of 48-52 mm.
4. The multilayer suction filtration filter element according to claim 1, which is characterized in that the multilayer suction filtration filter element is further provided with a gasket matched with the first suction filtration base plate, the middle suction filtration base plate and the bottom suction filtration base plate for use, the gasket can be attached to the grooves of the first suction filtration base plate main body, the middle suction filtration base plate main body and the bottom suction filtration base plate main body, a circular hole is formed in the middle of the gasket, and the diameter of the circular hole is 20-24 mm; the diameter of the gasket is equal to the diameter of the grooves of the first suction filtration base plate, the middle suction filtration base plate and the bottom suction filtration base plate.
5. A suction filtration apparatus, characterized in that the suction filtration apparatus comprises a filter element according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921298478.1U CN210409708U (en) | 2019-08-12 | 2019-08-12 | Multilayer suction filtration filter core and suction filtration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921298478.1U CN210409708U (en) | 2019-08-12 | 2019-08-12 | Multilayer suction filtration filter core and suction filtration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210409708U true CN210409708U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921298478.1U Active CN210409708U (en) | 2019-08-12 | 2019-08-12 | Multilayer suction filtration filter core and suction filtration device |
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| Country | Link |
|---|---|
| CN (1) | CN210409708U (en) |
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2019
- 2019-08-12 CN CN201921298478.1U patent/CN210409708U/en active Active
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Effective date of registration: 20201111 Address after: No.155-1 Zhenhua Road, Licang District, Qingdao City, Shandong Province Patentee after: Qingdao Aikebao Biotechnology Co., Ltd Address before: 266071 Shandong Province, Qingdao city Nanjing Road No. 106 Patentee before: YELLOW SEA FISHERIES Research Institute CHINESE ACADEMY OF FISHERY SCIENCES |
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| TR01 | Transfer of patent right |