CN212206739U - A liquid suction device for alga detects - Google Patents
A liquid suction device for alga detects Download PDFInfo
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- CN212206739U CN212206739U CN202020870912.5U CN202020870912U CN212206739U CN 212206739 U CN212206739 U CN 212206739U CN 202020870912 U CN202020870912 U CN 202020870912U CN 212206739 U CN212206739 U CN 212206739U
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- siphon
- pump
- container
- suction device
- algae
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- 238000001514 detection method Methods 0.000 claims description 13
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- 230000001105 regulatory effect Effects 0.000 claims description 6
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- 238000010146 3D printing Methods 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 4
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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model relates to a suction device for algae detects, establish including the container that is used for loading the water sample, insert the container in can take out the siphon of supernatant in the container, the container with the siphon have the multiunit, suction device still include respectively with one siphon many spinal branchs pipe be linked together, respectively with many spinal branchs pipe be linked together house steward, with house steward the pump that is linked together, with the pump be connected and can control the pump start and the time switch who closes. The utility model discloses a liquid suction device can realize regularly opening automatically and stop the siphon, can carry out a plurality of sample siphons simultaneously to can avoid the algae cell by the suction.
Description
Technical Field
The utility model relates to a liquid suction device for alga detects.
Background
Algae generally refers to a group of autotrophic microorganisms living in water in a planktonic manner and capable of photosynthesis, and the size of each individual is generally 2-200 microns, the variety of the algae is various, the algae contains chlorophyll, and the algae are regularly small individuals or groups with green color under microscopic observation. Because they are manufacturers of important organic substances in water, they play a significant role in the entire water ecosystem and are an indispensable link in the ecosystem. However, due to the rapid economic development in recent years, environmental protection is often neglected, and a large amount of industrial wastewater, farmland irrigation and domestic sewage are discharged into water, so that nutrient salts in the river, lake and sea near shore are enriched and exceed standards in a large amount, and water eutrophication is caused, and the eutrophicated water becomes a material condition for algal flooding, particularly, in summer and autumn of 5-10 months every year, the growth of algae is extremely vigorous, and occasionally threatens the water supply of cities. Therefore, a large amount of algae not only seriously damages the balance and stability of the water ecological environment system, but also directly influences the water treatment process and the quality of the factory water of urban tap water enterprises.
At present, algae in water is detected by a laboratory by adopting a biological monitoring method for water and wastewater and aquatic organism community determination method (a blood counting plate method), and the sample pretreatment step comprises the following steps: after 1000mL of water sample is directly stood for precipitation for 24 hours, the supernatant is carefully pumped out by a siphon, and the rest 20-25 mL of precipitate is transferred into a 30mL quantitative bottle. To reduce the loss of the specimen, the vessel was rinsed several times with a little more supernatant and the rinse was added to a 30mL volumetric flask. In the siphon process, because the uneven disturbance that causes the algae deposit of suction control easily makes the algae cell suck along with the supernatant, simultaneously because the siphon process is difficult to the accurate control, hardly guarantee that the volume of remaining sample to be detected that contains the precipitate is 20 ~ 25mL, and siphon process consuming time is longer, can cause testing personnel's fatigue when detecting a plurality of samples to operation error's risk has been increased, simultaneously in actual operation, settling time 24h also is difficult to accurate control.
Disclosure of Invention
The utility model aims at providing a can regularly open and stop the siphon automatically, can carry out a plurality of sample siphons simultaneously, and can avoid the new imbibition device that is used for the alga of algae cell by suction to detect.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a liquid suction device for alga detects, includes the container that is used for loading the water sample, insert and establish the container in can take out the supernatant's of container in the siphon, the container with the siphon have the multiunit, liquid suction device still include respectively with one many branch pipes that the siphon is linked together, respectively with many branch pipes be linked together the house steward, with the house steward pump that is linked together, with the pump be connected and can control the pump start and the time switch who closes.
Preferably, the pipetting device further comprises a regulating valve connected to the pump and capable of regulating the pressure output by the pump. The pressure output by the pump can be properly adjusted by adjusting the valve according to different sample quantities.
Preferably, the pump is a pump capable of providing a pressure of 0.98Pa or more.
Preferably, the pipetting device further comprises a switching valve mounted on the manifold. The on-off valve on the branch pipe can be opened or closed according to the number of samples to be detected actually.
Preferably, the lower end of the siphon tube is U-shaped and the opening faces upwards. After the pump is started, a downward suction force is formed on the supernatant above the opening of the siphon tube, and the disturbance on the lower layer algae cell sediment is effectively reduced.
Preferably, the liquid suction device further comprises a filter screen arranged at the opening of the siphon pipe, and the mesh number of the filter screen is 2000 meshes or more. The filter screen can prevent the algae cells from entering the siphon tube, and the algae cells are prevented from being sucked out along with the supernatant in the siphon process.
Preferably, the liquid suction device further comprises a bottle stopper or a bottle cap which is arranged at the opening of the container and is provided with a hole for inserting the siphon pipe, and the siphon pipe is inserted into the hole and can move up and down. The inserting depth of the siphon can be set according to the actual situation of the sample, and in the siphoning process, after the liquid level of the supernatant of the sample to be detected is reduced below the opening of the siphon, the supernatant is not sucked out any more, so that the condition that the lower layer algae cell sediment is sucked out due to the overlong siphoning time set by the timing switch can be prevented. The bottle plug is provided with a vent hole, so that the air pressure inside and outside the bottle is consistent, and the siphon process is ensured to be smoothly finished.
Preferably, the main pipe and the branch pipes are made of high polymer materials, and the siphon pipe is made of glass. The branch pipe made of the high polymer material has the advantages of corrosion resistance, low manufacturing cost and the like, and the siphon pipe made of the glass has the advantages of corrosion resistance, high plasticity, low manufacturing cost and the like.
Further, the high polymer material is polypropylene or rubber; the glass is borosilicate glass.
Preferably, the main pipe and the branch pipes are prepared by using a 3D printing technology, and the deviation of the inner diameter of each branch pipe is less than 3%. And 3D printing technology is adopted, the preparation process is simple, and the precision is high.
The working principle of the invention is as follows: the lower end of a siphon is inserted into a container containing a sample to be detected, the upper end of the siphon is connected with a branch pipe, a switch valve on the branch pipe is opened or closed according to the actual number of the sample to be detected, the pump pressure is adjusted according to the actual number of the sample to be detected, and the starting time and the closing time of the pump are set through a timing switch. After the set starting time of the timing switch is reached, the pump is automatically turned on, the pressure output by the pump is uniformly dispersed to the branch pipes through the main pipe and is transmitted to the lower end opening of the siphon pipe through the siphon pipe, the suction direction is changed to be upward through the U-shaped siphon pipe, the disturbance to the lower-layer sediment is reduced, and meanwhile, the filter screen on the lower end opening of the siphon pipe can effectively block algae cells. And when the set closing time of the timing switch is reached, the pump is automatically closed, and the siphon stops. In the siphoning process, after the liquid level of the supernatant of the sample to be detected is reduced to be lower than the opening at the lower end of the siphon, the supernatant is not sucked out any more.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the utility model provides a new imbibition device for alga detects can realize regularly opening automatically and stop the siphon, can realize that a plurality of samples that await measuring carry out the siphon simultaneously, can also avoid the algae cell by the suction, reduces the later stage and detects the error.
Drawings
Fig. 1 is a schematic view of a liquid suction device for algae detection according to an embodiment of the present invention.
In the above drawings: 1. a timing switch; 2. adjusting a valve; 3. a pump; 4. a first main tube; 5. an on-off valve; 6. a rubber connecting pipe; 7. a siphon tube; 8. a container; 9. a bottle stopper or cap; 10. a vent hole; 11. filtering with a screen; 12. a second main pipe; 13. a third main pipe; 14. and (4) a joint.
Detailed Description
The invention will be further described with reference to the embodiment shown in fig. 1.
Fig. 1 shows a liquid suction device for algae detection, which comprises a container 8 for loading a water sample, a siphon 7 inserted in the container 8 and capable of pumping supernatant in the container 8, wherein the container 8 and the siphon 7 have a plurality of groups, the liquid suction device further comprises a plurality of branch pipes respectively communicated with one siphon 7, a main pipe respectively communicated with the branch pipes, a pump 3 communicated with the main pipe, and a timing switch 1 connected with the pump 3 and capable of controlling the pump 3 to start and close.
According to a specific embodiment, as shown in fig. 1, a timing switch 1 capable of controlling the pump 3 to start and stop is connected with the pump 3, the start and stop time of the pump 3 is set according to the timing switch 1, the pump 3 is automatically started and stopped, and the siphon is automatically started and stopped at regular time. The pump 3 is also connected with a regulating valve 2 which can regulate the pressure output by the pump 3, and the regulating valve 2 is used for properly regulating the pressure output by the pump 3 according to different sample quantities. It is preferable to use the pump 3 capable of supplying a pressure of 0.98Pa or more, and to provide a sufficient siphon power even when siphoning a plurality of samples is performed simultaneously.
The pressure output port of the pump 3 is connected with a main pipe for transmitting siphon power. The main pipe comprises a first main pipe 4, a second main pipe 12 and a third main pipe 13, the output port of the pump 3 is connected with the second main pipe 12 through the first main pipe 4, one end of the second main pipe 12 is communicated with the middle position of the third main pipe 13, the second main pipe 12 and the third main pipe 13 are integrated, and the second main pipe 12 and the third main pipe 13 are in an shape as a whole. The branch pipe comprises a plurality of joints 14 and rubber connecting pipes 6 communicated with the joints 14, the joints 14 are communicated with two ends and pipe walls of the third main pipe 13, the joints 14 are uniformly distributed along the length direction of the third main pipe 13, and in the figure 1, the number of the joints 14 is 10. The joint 14 is also integral with the third main tube 13, the joint 14, the second main tube 12 and the third main tube 13 being prepared by a 3D printing method. When two or more branch pipes are connected, the pressure output through the header pipe is uniformly distributed to the respective branch pipes. Of course, in other embodiments, the number of the joints 14 may be set according to actual conditions, but with the manner of this embodiment, the joints 14 partially overlap with the rubber connecting pipe 6, so that the sealing performance of the joint can be ensured, and the rubber connecting pipe 6 is not easy to fall off during use.
In this embodiment, each joint 14 of the third main pipe 13 is fixed with one on-off valve 5, the on-off valve 5 can be opened or closed according to the number of samples to be detected actually, and the on-off valve 5 on the branch pipe is closed when the branch pipe is not used, so as to prevent the pressure evenly distributed to each branch pipe from being reduced due to suction. Certainly, by using the method of the embodiment, if the number of samples to be measured is less than the number of the joints 14, only the rubber connecting pipes 6 corresponding to the number of the samples can be installed, so that the number of pipelines of the device is reduced, and the operation is more convenient.
The material of the main pipe and the branch pipes is high molecular material, preferably polypropylene or rubber. In this embodiment, house steward internal diameter is 2cm, and the branch pipe internal diameter is 0.5cm, and house steward and branch pipe use polypropylene or rubber to pass through the mode preparation that 3D printed, have better corrosion resistance, and precision is high moreover for pressure evenly distributed through house steward transmission has guaranteed that the siphon pressure of every sample that awaits measuring is unanimous to every branch pipe of having opened ooff valve 5, reduces the cost of manufacture simultaneously.
The other end of the rubber connecting pipe 6 is respectively connected with the upper end of a siphon pipe 7, the lower end of the siphon pipe 7 is inserted into a hole on a bottle stopper or a bottle cap 9 of the container 8, and the lower end of the siphon pipe 7 is U-shaped and has an upward opening. After the pump 3 is started, downward suction is formed on the supernatant above the opening at the lower end of the siphon tube 7, and in the siphon process, the suction direction is changed to be upward through the U-shaped siphon tube 7, so that the disturbance on the lower layer algae cell sediment is effectively reduced. Meanwhile, when the liquid level of the supernatant drops below the opening at the lower end of the siphon tube 7 during the working of the pump 3, the siphon on the supernatant is stopped, and the phenomenon that the lower layer algae cells are sucked out due to the overlong working time of the pump 3 arranged by the timing switch 1 is prevented. In this embodiment, the siphon tube 7 has an inner diameter of 0.5cm, is made of borosilicate glass having a wall thickness of 0.1cm, is corrosion-resistant, has high plasticity, and is low in cost, but other glass materials may be used in other embodiments. The opening part of the siphon 7 is provided with a filter screen 11, which prevents algae cells from entering the siphon 7, thereby reducing the detection error of the sample to be detected in the later period. In this embodiment, a filter 11 with a diameter of 6.5 μm and a pore size of 2000 mesh is used to block most of the algae cells, and too small a pore size will affect the imbibing speed and cause clogging more easily, requiring frequent replacement and increasing the workload.
In this embodiment, the container adopts brown opaque glass material, and the accurate scale that marks of body. Siphon 7 can reciprocate in the hole on bottle plug or bottle lid 9, the degree of depth in the container 8 is inserted perpendicularly to adjustment siphon 7, flush 7 lower extreme opening of siphon and 30mL scale department, the siphon in-process, after the supernatant liquid level drops to 30mL scale department, no longer the supernatant suction, the volume that remains the sample that awaits measuring that contains the precipitate is 30mL, can prevent that the siphon time overlength that time switch 1 set up from leading to unable accurate control siphon degree, if adopt "the biological monitoring method aquatic organism community's of water and waste water survey" (blood count board method), still saved the remaining step of the sample that awaits measuring of constant volume, directly detect, reduce work load, and reduce the loss of sample, guarantee the degree of accuracy of testing result. Of course, in other embodiments, the opening at the lower end of the siphon tube 7 and the proper scale on the container 8 can be on the same horizontal straight line according to the experiment needs. The bottle stopper or the bottle cap 9 is also provided with an air vent 10, so that the air pressure inside and outside the bottle is consistent, the siphon process is guaranteed to be completed smoothly, and the bottle stopper of the embodiment is made of soft rubber materials and is easy to punch.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A pipetting device for algae detection, comprising a container (8) for containing a sample of water, a siphon (7) inserted in said container (8) and capable of aspirating the supernatant inside said container (8), characterized in that: the liquid suction device comprises a container (8), a plurality of siphons (7), a plurality of branch pipes, a main pipe, a pump (3) and a timing switch (1), wherein the branch pipes are respectively communicated with one siphon (7), the main pipe is respectively communicated with the branch pipes, the pump (3) is communicated with the main pipe, and the timing switch (1) is connected with the pump (3) and can control the pump (3) to be started and closed.
2. The wicking apparatus for algae detection of claim 1, wherein: the liquid suction device also comprises a regulating valve (2) which is connected with the pump (3) and can regulate the pressure output by the pump (3).
3. The wicking apparatus for algae detection of claim 1, wherein: the pump (3) can provide a pressure of 0.98Pa or more.
4. The wicking apparatus for algae detection of claim 1, wherein: the liquid suction device also comprises a switch valve (5) arranged on the branch pipe.
5. The wicking apparatus for algae detection of claim 1, wherein: the lower end of the siphon (7) is U-shaped and the opening faces upwards.
6. The wicking apparatus for algae detection according to claim 1 or 5, wherein: the liquid suction device also comprises a filter screen (11) arranged at the opening of the siphon (7), and the mesh number of the filter screen (11) is 2000 meshes or more.
7. The wicking apparatus for algae detection of claim 1, wherein: the liquid suction device also comprises a bottle stopper or a bottle cap (9) which is arranged at the opening of the container (8) and is provided with a hole for inserting the siphon (7), and the siphon (7) is inserted in the hole and can move up and down.
8. The wicking apparatus for algae detection of claim 1, wherein: the main pipe and the branch pipes are made of high polymer materials, and the siphon (7) is made of glass.
9. The wicking apparatus for algae detection according to claim 8, wherein: the high polymer material is polypropylene or rubber; the glass is borosilicate glass.
10. The wicking apparatus for algae detection of claim 1, wherein: the main pipe and the branch pipes are prepared by adopting a 3D printing technology, and the deviation of the inner diameter of each branch pipe is less than 3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020870912.5U CN212206739U (en) | 2020-05-22 | 2020-05-22 | A liquid suction device for alga detects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020870912.5U CN212206739U (en) | 2020-05-22 | 2020-05-22 | A liquid suction device for alga detects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212206739U true CN212206739U (en) | 2020-12-22 |
Family
ID=73815821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020870912.5U Active CN212206739U (en) | 2020-05-22 | 2020-05-22 | A liquid suction device for alga detects |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212206739U (en) |
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2020
- 2020-05-22 CN CN202020870912.5U patent/CN212206739U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240109 Address after: No. 2999 Yunlong West Road, Songling Town, Wujiang District, Suzhou City, Jiangsu Province, 215000 Patentee after: Suzhou Yanda Testing Co.,Ltd. Address before: 2999 Yunlong West Road, Wujiang District, Suzhou City, Jiangsu Province Patentee before: WUXI HUA YAN WATER Co.,Ltd. |
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| TR01 | Transfer of patent right |