CN215609851U - Multifunctional filtering device for water quality detection in laboratory - Google Patents
Multifunctional filtering device for water quality detection in laboratory Download PDFInfo
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- CN215609851U CN215609851U CN202120682186.9U CN202120682186U CN215609851U CN 215609851 U CN215609851 U CN 215609851U CN 202120682186 U CN202120682186 U CN 202120682186U CN 215609851 U CN215609851 U CN 215609851U
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Abstract
The utility model discloses a multifunctional water sample filter for laboratory water quality detection, which comprises a multifunctional water sample filter, a safety bottle and a vacuum pump, wherein the multifunctional water sample filter consists of a vacuum air chamber and a vacuum air chamber cover plate, a plurality of filtering ports for sand core funnels are arranged on the same straight line in the middle of the vacuum air chamber cover plate, a plurality of filter head filtering ports are arranged on two sides of the filtering ports for the sand core funnels in parallel, the filtering sand core funnels are placed in the filtering ports for the sand core funnels, filtering heads are placed in the filtering ports of the filter heads, and injectors are arranged on the filtering heads; a test tube bracket is arranged in the vacuum air chamber, and a plurality of large test tubes and a plurality of small test tubes are arranged on the test tube bracket; an air exhaust port is arranged on one side of the vacuum air chamber, and an air release valve is arranged on a pipeline of the air exhaust port; the safety bottle is connected with the air extraction port and the vacuum pump respectively by using a hose; the utility model can process a single sample and a plurality of samples simultaneously, and can complete the water sample filtration pretreatment of physicochemical detection items and instrument detection items by one-time suction filtration.
Description
Technical Field
The utility model relates to a water quality detection filtering device, in particular to a multifunctional filtering device for water quality detection in a laboratory.
Background
In laboratory water quality testing experiments, pretreatment of many test items involves filtration of water samples, such as dissolved total solids, ion chromatography, ICP (MS), atomic absorption and atomic fluorescence, etc.; for the physical and chemical detection items, because the required liquid sampling volume is large, a suction filtration bottle is generally adopted for suction filtration; for a precise large instrument, because the sample volume required by sample introduction is small, such as ion chromatography and ICP, the sample is usually filtered by using filter heads with different particle sizes; when the suction filtration bottle is used for suction filtration of a sample, only one sample can be filtered each time, then the suction filtration bottle is required to be cleaned by pure water, the suction filtration bottle is repeatedly cleaned by the preliminarily filtered sample filtrate for several times, and finally the final sample is obtained by suction filtration, so that the process is time-consuming and labor-consuming, and the waste amount of the sample is large; when the filter head is used for filtering, if the water sample contains more solid particles or is dirty sewage sample, the filter head can be quickly blocked by the sample due to the small particle size of the filter head, the manual operation is very laborious, and the filter head needs to be replaced by a new filter head for continuous filtering in order to obtain enough sample amount.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a time-saving and efficient filtering device, namely a multifunctional filtering device for water quality detection in a laboratory.
In order to solve the problems, the utility model is realized by the following scheme:
a multifunctional water sample filter for laboratory water quality detection comprises a multifunctional water sample filter, a safety bottle and a vacuum pump, wherein the multifunctional water sample filter consists of a vacuum air chamber and a vacuum air chamber cover plate, a plurality of filtering ports for sand core funnels are arranged on the middle of the vacuum air chamber cover plate in the same straight line, a plurality of filter head filtering ports are arranged on two sides of the sand core funnel filtering ports in parallel, the sand core funnels are placed in the sand core funnel filtering ports, filter heads are placed in the filter head filtering ports, and injectors are arranged on the filter heads; a test tube bracket is arranged in the vacuum air chamber, and a plurality of large test tubes and a plurality of small test tubes are arranged on the test tube bracket; an air exhaust port is arranged on one side of the vacuum air chamber, and an air release valve is arranged on a pipeline of the air exhaust port; the safety bottle is connected with the air pumping port and the vacuum pump respectively by using a hose.
Further, a rubber plug is arranged between the filtering port for the sand core funnel and the filtering sand core funnel.
Further, the filter openings for the sand core funnel are set to be 3-6 according to requirements, the filter openings of the filter heads are set to be 7-14, the number of the large test tubes is consistent with the number of the filter openings for the sand core funnel, and the number of the small test tubes is consistent with the number of the filter openings of the filter heads.
Furthermore, a switch valve is arranged between the filter head and the vacuum air chamber cover plate.
Furthermore, a pipe orifice connected with the air exhaust port in the safety bottle is arranged at the bottom of the bottle, and a pipe orifice connected with the vacuum pump is arranged at the bottle opening.
Furthermore, the filter head is a fine filter head of 0.22 μm or 0.45 μm, the large test tube is a test tube of 50ml or 100ml or 150ml, and the small test tube is a test tube of 20ml or 15ml or 10 ml.
Furthermore, a flow guide pipe is arranged below the filter head on the vacuum chamber cover plate.
Furthermore, the vacuum chamber cover plate and the test tube support are made of high-pressure-resistant and corrosion-resistant materials such as polytetrafluoroethylene, carbon fiber, copper oxide, stainless steel and the like.
Furthermore, the switch valve is made of polypropylene materials which are easy to clean and prevent pollution.
Further, the emptying valve is made of stainless steel materials.
By adopting the structure, the utility model can process a single sample and can also process a plurality of samples simultaneously; the sample filtered by the sand core funnel or the sample filtered by the filter head can be selectively and independently treated, and the two types of samples can also be simultaneously treated. The water sample filtering pretreatment of the physical and chemical detection items and the instrument detection items can be completed by one-time suction filtration, and the device has the characteristics of simple structure, convenience, practicability, reliable performance and the like.
Drawings
The utility model is further illustrated by the figures and the detailed description.
FIG. 1 is a schematic structural view of a multifunctional laboratory water quality detection filter device
FIG. 2 is a schematic view of a multifunctional water sample filter
FIG. 3 is a schematic diagram of a vacuum chamber cover plate structure
In the figure: 1-syringe, 2-sand core funnel for filtration, 3-filter head, 4-switch valve, 5-vacuum chamber cover plate, 6-large test tube, 7-small test tube, 8-test tube bracket, 9-air release valve, 10-air extraction opening, 11-vacuum air chamber, 12-filter head for filter head, 13-filter opening for sand core funnel, 14-rubber plug, 15-honeycomb duct, 20-multifunctional water sample filter, 21-safety bottle and 22-vacuum pump.
Detailed Description
As shown in fig. 1, fig. 2 and fig. 3, the multifunctional filtering device for water quality detection in laboratory comprises a multifunctional water sample filter 20, a safety bottle 21 and a vacuum pump 22, and is characterized in that: the multifunctional water sample filter 20 consists of a vacuum air chamber 11 and a vacuum air chamber cover plate 5, wherein a plurality of filtering ports 13 for sand core funnels are arranged on the middle of the vacuum air chamber cover plate 5 in the same straight line, a plurality of filtering head filtering ports 12 are arranged on two sides of the filtering ports 13 for the sand core funnels in parallel, filtering sand core funnels 2 are placed in the filtering ports 13 for the sand core funnels, filtering heads 3 are placed in the filtering head filtering ports 12, and injectors 1 are arranged on the filtering heads 3; a test tube bracket 8 is arranged in the vacuum air chamber 11, and a plurality of large test tubes 6 and a plurality of small test tubes 7 are arranged on the test tube bracket 8; an air exhaust port 10 is arranged on one side of the vacuum air chamber 11, and an air release valve 9 is arranged on a pipeline of the air exhaust port 10; the safety bottle 21 is connected to the suction port 10 and the vacuum pump 22, respectively, using hoses.
And a rubber plug 14 is arranged between the filtering port 13 for the sand core funnel and the filtering sand core funnel 2.
Filter opening 13 for the psammitolite funnel sets up to 4 according to the demand, and filter head filter opening 12 sets up 9, and the quantity of big test tube 6 is unanimous with filter opening 13 quantity for the psammitolite funnel, and the quantity of little test tube 7 is unanimous with filter head filter opening 12 quantity.
And a switch valve 4 is arranged between the filter head 3 and the vacuum air chamber cover plate 5.
The pipe orifice connected with the air pumping orifice 10 in the safety bottle 21 is arranged at the bottom of the bottle, and the pipe orifice connected with the vacuum pump 22 is arranged at the opening of the bottle.
The filter head 3 is a fine filter head with the diameter of 0.22 mu m, the large test tube 6 is a 100ml test tube, and the small test tube 7 is a 15ml test tube.
And a flow guide pipe 15 is arranged below the filter head 3 on the vacuum chamber cover plate 5.
The vacuum chamber cover plate 5 and the test tube support 8 are made of polytetrafluoroethylene, high-pressure-resistant and corrosion-resistant materials.
The switch valve 4 is made of polypropylene material which is easy to clean and is prevented from being polluted.
The emptying valve 9 is made of stainless steel materials.
When the multifunctional laboratory water quality detection filter device filters samples in an instrument, the four filter sand core funnels are plugged by the plugs with the filter ports 13, and then whether the opening and closing valves 4 on the filter ports 12 for all unused filter heads are closed or not is checked. A 0.22 μm filter head 3 is mounted, and then a 15ml cuvette 7 is placed right below a corresponding filter head-use filter port 12; then connecting a vacuum pump 22, a safety bottle 21 and the multifunctional filter 20 by using a thickened rubber tube, and checking whether the flow path has problems; if no problem exists, the injector 1 is used for extracting a water sample to be detected, the water sample is loaded on the filter head 3, the vacuum pump 22 is started for vacuumizing, whether the pressure gauge of the vacuum pump 22 is normal or not is observed, and the sample is collected; when the sample amount meets the detection requirement, the vacuum pump 22 can be closed, the emptying valve 9 is opened slowly, the vacuum is released, the vacuum chamber cover plate 5 is opened, and the small test tube 7 with the filtrate collected is taken out.
When filtering physicochemical samples such as soluble total solid samples, all the on-off valves 4 on the filter ports 12 for the filter heads are closed, the sand core funnel 2 for filtering is installed on the filter ports 12 for the filter heads through rubber plugs, then the vacuum pump 22, the safety bottle 21 and the multifunctional filter 20 are connected through thickened rubber tubes, and whether the flow path has problems is checked; if no problem exists, extracting a water sample to be detected, putting the water sample into the sand core funnel 2 for filtering, starting the vacuum pump 22 for vacuumizing, observing whether a pressure gauge of the vacuum pump 22 is normal or not, and collecting the sample; when the sample amount meets the detection requirement, the vacuum pump 22 can be closed, the emptying valve 9 is opened slowly, the vacuum is released, the vacuum chamber cover plate 5 is opened, and the large test tube 6 with the filtrate collected is taken out.
When the physicochemical and in-instrument samples are filtered simultaneously, the switch valves 4 on the filter ports 12 for the unused filter heads are closed, the filter ports 13 for the unused sand core funnels for filtering are plugged by plugs, and the rest of the operations are performed as before.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top", "end", "side", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Also, unless expressly stated or limited otherwise, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and thus, for example, "connected" may be fixedly, detachably, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It is to be understood that the above description is only one embodiment of the utility model, and not all embodiments. Other modifications and equivalents of the embodiments of the utility model will be apparent to those skilled in the art based on the examples and embodiments of the utility model, and are intended to be included within the scope of the claims of the present invention without departing from the spirit and scope of the embodiments.
Claims (10)
1. The utility model provides a multi-functional laboratory is filter equipment for water quality testing, includes multi-functional water sample filter (20), safety bottle (21) and vacuum pump (22), characterized in that: the multifunctional water sample filter (20) consists of a vacuum air chamber (11) and a vacuum air chamber cover plate (5), a plurality of filtering ports (13) for sand core funnels are arranged on the middle of the vacuum air chamber cover plate (5) in the same straight line, a plurality of filter head filtering ports (12) are arranged on two sides of the filtering ports (13) for the sand core funnels in parallel, filtering sand core funnels (2) are placed in the filtering ports (13) for the sand core funnels, filtering heads (3) are placed in the filter head filtering ports (12), and injectors (1) are arranged on the filtering heads (3); a test tube support (8) is arranged in the vacuum air chamber (11), and a plurality of large test tubes (6) and a plurality of small test tubes (7) are arranged on the test tube support (8); an air pumping hole (10) is formed in one side of the vacuum air chamber (11), and an air release valve (9) is arranged on a pipeline of the air pumping hole (10); the safety bottle (21) is connected with the suction opening (10) and the vacuum pump (22) respectively by using hoses.
2. The multifunctional laboratory water quality testing filter device according to claim 1, wherein: a rubber plug (14) is arranged between the filtering opening (13) for the sand core funnel and the filtering sand core funnel (2).
3. The multifunctional laboratory water quality testing filter device according to claim 1, wherein: filter opening (13) for the psammitolite funnel sets up to 3 ~ 6 according to the demand, and filter head filter opening (12) set up 7 ~ 14, and the quantity of big test tube (6) is unanimous with filter opening (13) quantity for the psammitolite funnel, and little test tube (7) quantity is unanimous with filter head filter opening (12) quantity.
4. The multifunctional laboratory water quality testing filter device according to claim 1, wherein: a switch valve (4) is arranged between the filter head (3) and the vacuum chamber cover plate (5).
5. The multifunctional laboratory water quality testing filter device according to claim 1, wherein: the pipe orifice connected with the air pumping orifice (10) in the safety bottle (21) is arranged at the bottom of the bottle, and the pipe orifice connected with the vacuum pump (22) is arranged at the opening of the bottle.
6. The multifunctional laboratory water quality testing filter device according to claim 1, wherein: the filter head (3) is a fine filter head with the diameter of 0.22 mu m or 0.45 mu m, the large test tube (6) is a test tube with the volume of 50ml or 100ml or 150ml, and the small test tube (7) is a test tube with the volume of 20ml or 15ml or 10 ml.
7. The multifunctional laboratory water quality testing filter device according to claim 1, wherein: a flow guide pipe (15) is arranged below the filter head (3) on the vacuum chamber cover plate (5).
8. The multifunctional laboratory water quality testing filter device according to claim 1, wherein: the vacuum chamber cover plate (5) and the test tube bracket (8) are made of polytetrafluoroethylene, carbon fiber, copper oxide or stainless steel materials.
9. The multifunctional laboratory water quality testing filter device according to claim 4, wherein: the switch valve (4) is made of polypropylene material which is easy to clean and prevents pollution.
10. The multifunctional laboratory water quality testing filter device according to claim 1, wherein: the emptying valve (9) is made of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120682186.9U CN215609851U (en) | 2021-04-02 | 2021-04-02 | Multifunctional filtering device for water quality detection in laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120682186.9U CN215609851U (en) | 2021-04-02 | 2021-04-02 | Multifunctional filtering device for water quality detection in laboratory |
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| Publication Number | Publication Date |
|---|---|
| CN215609851U true CN215609851U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120682186.9U Active CN215609851U (en) | 2021-04-02 | 2021-04-02 | Multifunctional filtering device for water quality detection in laboratory |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114917649A (en) * | 2022-05-23 | 2022-08-19 | 中国地质科学院水文地质环境地质研究所 | Multi-volume suction filtration device and suction filtration method |
-
2021
- 2021-04-02 CN CN202120682186.9U patent/CN215609851U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114917649A (en) * | 2022-05-23 | 2022-08-19 | 中国地质科学院水文地质环境地质研究所 | Multi-volume suction filtration device and suction filtration method |
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