CN111175087B - High-precision water sample suction filtration detection device - Google Patents
High-precision water sample suction filtration detection device Download PDFInfo
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- CN111175087B CN111175087B CN202010198759.0A CN202010198759A CN111175087B CN 111175087 B CN111175087 B CN 111175087B CN 202010198759 A CN202010198759 A CN 202010198759A CN 111175087 B CN111175087 B CN 111175087B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
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- Hydrology & Water Resources (AREA)
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Abstract
The invention discloses a high-precision water sample suction filtration detection device, which is characterized in that: the water collecting bottle has one second rubber plug in the inlet, one vacuum tube fixed to the side of the upper part of the water collecting bottle, one inverted sampling bottle, one first rubber plug in the inlet, one water filling pipe inserted into the lower part of the sampling bottle, one sampling pipe communicated with the inner cavity of the sampling bottle, one cylindrical gland with opened lower end and with one central hole, one conic tube inserted into the circular hole, one outer thread outside the lower end of the gland, one horizontal hole plate fixed inside the upper cavity of the conic tube, several groups of through holes in the hole plate, one filtering film set on the hole plate, one pressing plate on the filtering film and with fan-shaped through holes.
Description
Technical Field
The invention belongs to the technical field of water sample detection, and particularly relates to a high-precision water sample suction filtration detection device.
Background
The seawater and lake water are used as carriers of aquatic organisms, and the change of water quality indexes directly influences the survival and death of the aquatic organisms. In recent years, the frequent red tide, the mass death of fishes and other conditions are closely related to the change of the water quality of the water body, so that people pay attention to the water quality of the water body. Often carry out the measuring of suspended solid concentration to sea water, lake water through filter equipment in the laboratory, current filter equipment lets water pass the filter membrane mostly, then dries to weigh to the filter membrane, when aquatic suspended solid concentration is higher, the filter membrane is blockked up easily to the suspended solid, often detects the time that once consumes long, simultaneously, often can some suspended solids of adhesion in sampling bottle, coupling mechanism, the filter equipment, cause the error that detects great, it remains to improve to detect the precision.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-precision water sample suction filtration detection device.
The utility model provides a high accuracy water sample suction filtration detection device, includes sampling bottle, sample filter, water-collecting bottle, its characterized in that: the sampling bottle sets up the top at the sample filter, the bottle that catchments sets up the below at the sample filter, the import department stopper of the bottle that catchments has the second rubber buffer, the side on bottle upper portion that catchments is fixed with the vacuum tube, the sampling bottle is invertd and is set up, the import department stopper of sampling bottle has first rubber buffer, first rubber buffer is provided with water injection pipe, sampling tube, the lower part of sampling bottle is inserted to the water injection pipe, the sampling tube communicates with each other with the inner chamber of sampling bottle, the sample filter includes gland, filter membrane, awl section of thick bamboo, the gland is lower extreme open-ended cylindrical structure, the center department on gland upper portion is equipped with the round hole, the lower extreme of sampling tube inserts in the round hole on gland upper portion, the outside of gland lower extreme is equipped with the external screw thread, the lower extreme and the awl section of thick bamboo threaded connection of gland, be fixed with the orifice plate of horizontal direction in the inner chamber on awl section of thick bamboo upper portion, be equipped with the through-hole of a plurality of groups on the orifice plate, the upper portion at the orifice plate is placed to the filter membrane, the upper portion of filter membrane is equipped with the clamp plate, be equipped with sectorial through-hole on the clamp plate, the below of clamp plate limit portion is equipped with top seal circle, lower seal circle respectively, the up end of top seal circle supports tightly with the lower extreme bead of gland, the bottom of awl section of thick bamboo is connected with the upper end of pipe in the water, the lower extreme of pipe in the water passes the second rubber buffer and inserts in the inner chamber of water-collecting bottle.
Preferably, a drain pipe is fixed to a side portion of the lower portion of the water collecting bottle, and the drain pipe is provided with a drain valve.
Preferably, a communicating pipe is fixed at the bottom of the sampling bottle, and a communicating valve is fixed on the communicating pipe.
Preferably, the inlet end of the water injection pipe is connected with a distilled water bottle through a hose, and the distilled water bottle is fixed at the top of the bracket.
Preferably, the sampling bottle, the sampling filter and the water collecting bottle are all fixed on the support, and the sampling bottle is provided with scale marks.
Preferably, valves are arranged on the water injection pipe, the sampling pipe, the downpipe and the vacuum pipe.
Compared with the prior art, the invention has the following beneficial effects:
when the device is used, a water sample to be detected is placed in a sampling bottle, the sampling bottle is inversely fixed on a support, a distilled water bottle is connected with a water injection pipe through a hose, a valve on the sampling pipe is opened, a communicating valve on a communicating pipe is opened, a valve on a vacuum pipe is opened, water enters a sampling filter, water passes through a filter membrane, suspended matters in the water are retained on the upper surface of the filter membrane, when all the water samples in the sampling bottle enter a water collecting bottle, the valve on the vacuum pipe is closed, a valve on a water discharging pipe is opened for water discharging, meanwhile, a valve on the water injection pipe is opened, distilled water is injected into the sampling bottle, after the distilled water is filled, the sampling bottle is taken down and shaken up and down, the distilled water completely enters the water collecting bottle in a water sample detection mode, after 2-3 times of repetition, the sampling bottle is removed, a gland is opened, a pressing plate is taken out, finally, the filter membrane is taken out, is placed into an oven for drying and weighing, and the mass difference before and after detection is the total amount of the suspended matters in the water sample, so that the concentration of the suspended matters in the water is calculated. By arranging the vacuum tube, the interior of the water collecting bottle is in a negative pressure state during filtering, so that the pressure difference between the upper end surface and the lower end surface of the filter membrane can be effectively improved, the detection time is shortened, and the working efficiency is improved; the part above the sampling filter is cleaned by setting distilled water, the suspended matters are prevented from being adhered to the wall surfaces of the container and the pipeline, the detection accuracy is improved, and the device has the advantage of high precision.
Drawings
FIG. 1 is a schematic structural diagram of a high-precision water sample suction filtration detection device.
FIG. 2 is a schematic view of the sampling filter according to the present invention.
FIG. 3 is a schematic top view of a platen of the present invention.
In the figure, 1, a distilled water bottle, 2, a hose, 3, a bracket, 4, a communicating pipe, 5, a sampling bottle, 6, a water injection pipe, 7, a sampling pipe, 8, a first rubber plug, 9, a sampling filter, 10, a downpipe, 11, a second rubber plug, 12, a water collecting bottle, 13, a vacuum pipe, 14, a drain pipe, 901, a gland, 902, an upper sealing ring, 903, a pressing plate, 904, a lower sealing ring, 905, a filter membrane, 906, an orifice plate, 907 and a cone.
Detailed Description
Referring to fig. 1, fig. 2, fig. 3, a high accuracy water sample suction filtration detection device, includes sample bottle 5, sample filter 9, water-collecting bottle 12, its characterized in that: the sampling bottle 5 is arranged above the sampling filter 9, the water collecting bottle 12 is arranged below the sampling filter 9, a second rubber plug 11 is plugged at the inlet of the water collecting bottle 12, a vacuum tube 13 is fixed on the lateral side of the upper part of the water collecting bottle 12, the sampling bottle 5 is arranged in an inverted manner, a first rubber plug 8 is plugged at the inlet of the sampling bottle 5, the first rubber plug 8 is provided with a water injection tube 6 and a sampling tube 7, the water injection tube 6 is inserted into the lower part of the sampling bottle 5, the sampling tube 7 is communicated with the inner cavity of the sampling bottle 5, the sampling filter 9 comprises a gland 901, a filter membrane 905 and a cone 907, the gland 901 is of a cylindrical structure with an opening at the lower end, a round hole is arranged at the center of the upper part of the gland 901, and the lower end of the sampling tube 7 is inserted into the round hole of the upper part of the gland 901, the outer side of the lower end of the gland 901 is provided with external threads, the lower end of the gland 901 is in threaded connection with a conical cylinder 907, a horizontal pore plate 906 is fixed in an inner cavity of the upper portion of the conical cylinder 907, a plurality of groups of through holes are formed in the pore plate 906, the filter membrane 905 is placed on the upper portion of the pore plate 906, a pressure plate 903 is arranged on the upper portion of the filter membrane 905, fan-shaped through holes are formed in the pressure plate 903, an upper sealing ring 902 and a lower sealing ring 904 are respectively arranged above and below the edge portion of the pressure plate 903, the upper end face of the upper sealing ring 902 is tightly abutted to the lower end bead of the gland 901, the bottom of the conical cylinder 907 is connected with the upper end of a water falling pipe 10, and the lower end of the water falling pipe 10 penetrates through a second rubber plug 11 to be inserted into an inner cavity of the water collecting bottle 12.
A drain pipe 14 is fixed on the side part of the lower part of the water collecting bottle 12, and the drain pipe 14 is provided with a drain valve.
The bottom of sampling bottle 5 is fixed with communicating pipe 4, be fixed with the intercommunication valve on communicating pipe 4.
The inlet end of the water injection pipe 6 is connected with the distilled water bottle 1 through the hose 2, and the distilled water bottle 1 is fixed at the top of the support 3.
The sampling bottle 5, the sampling filter 9 and the water collecting bottle 12 are all fixed on the support 3, and the sampling bottle 5 is provided with scale marks.
Valves are arranged on the water injection pipe 6, the sampling pipe 7, the downpipe 10 and the vacuum pipe 13.
The working principle of the invention is as follows:
when the device is used, a water sample to be detected is placed in a sampling bottle 5, the sampling bottle 5 is inversely fixed on a support 3, a distilled water bottle 1 is connected with a water injection pipe 6 through a hose 2, a valve on a sampling pipe 7 is opened, a communicating valve on a communicating pipe 4 is opened, a valve on a vacuum pipe 13 is opened, water enters a sampling filter 9, the water passes through a filter membrane 905, suspended matters in the water are retained on the upper surface of the filter membrane 905, after the water sample of the sampling bottle 5 completely enters a water collecting bottle 12, the valve on the vacuum pipe 13 is closed, a valve on a drain pipe 14 is opened for draining, meanwhile, the valve on the water injection pipe 6 is opened, distilled water is injected into the sampling bottle 5, after the distilled water is filled, the sampling bottle 5 is taken down and shaken up and down, the distilled water completely enters the water collecting bottle 12 in a detection mode, after the operation is repeated for 2-3 times, the sampling bottle 5 is removed, a gland 901 is opened, a pressure plate 903 is taken out, the filter membrane 905 is finally taken out, the filter membrane 905 is placed in an oven for drying and weighing, and the mass difference between the water sample before and after the detection is the total amount of the suspended matters in the water sample 905, so as to calculate the concentration of the suspended matters in the water. By arranging the vacuum tube 13, the interior of the water collecting bottle 12 is in a negative pressure state during filtering, so that the pressure difference between the upper end surface and the lower end surface of the filter membrane 905 can be effectively improved, the detection time is shortened, and the working efficiency is improved; the part above the sampling filter 9 is cleaned by setting distilled water, so that suspended matters are prevented from being adhered to the wall surfaces of a container and a pipeline, the detection accuracy is improved, and the device has the advantage of high precision.
The device is cleaned by distilled water and dried by an oven before use, and is cleaned by distilled water and dried by the oven after use.
Technical solution of the invention is described above with reference to the accompanying drawings by way of example, and it is obvious that the invention is not limited to the above embodiments, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive concept and technical solution, or to apply the inventive concept and technical solution to other situations without any modification.
Claims (6)
1. The utility model provides a high accuracy water sample suction filtration detection device, includes sampling bottle (5), sample filter (9), water-collecting bottle (12), its characterized in that: the sampling bottle (5) is arranged above the sampling filter (9), the water collecting bottle (12) is arranged below the sampling filter (9), a second rubber plug (11) is plugged at the inlet of the water collecting bottle (12), a vacuum tube (13) is fixed on the side of the upper part of the water collecting bottle (12), the sampling bottle (5) is arranged in an inverted manner, a first rubber plug (8) is plugged at the inlet of the sampling bottle (5), the first rubber plug (8) is provided with a water injection tube (6) and a sampling tube (7), the water injection tube (6) is inserted into the lower part of the sampling bottle (5), the sampling tube (7) is communicated with the inner cavity of the sampling bottle (5), the sampling filter (9) comprises a gland (901), a filter membrane (905) and a conical cylinder (907), the gland (901) is of a cylindrical structure with an open lower end, a circular hole is arranged at the center of the upper part of the gland (901), the lower end of the sampling tube (7) is inserted into the circular hole at the upper part of the gland (901), external threads are arranged on the outer side of the lower end of the gland (901), the gland (906) is connected with the conical cylinder (906) in the upper part of the conical cylinder (906), and a plurality of through holes (906) are arranged in the horizontal through holes (906) in the horizontal hole plate (906) group of the horizontal hole plate (906, and the pore plate (906) in the horizontal hole (906) of the conical cylinder (906) in the horizontal hole plate (906) are arranged in the horizontal hole (906) group of the conical cylinder (906) in the horizontal hole (906) group, a pressure plate (903) is arranged at the upper part of the filter membrane (905), a fan-shaped through hole is formed in the pressure plate (903), an upper sealing ring (902) and a lower sealing ring (904) are respectively arranged above and below the edge part of the pressure plate (903), the upper end surface of the upper sealing ring (902) is tightly abutted to the lower end edge of the gland (901), the bottom of the conical cylinder (907) is connected with the upper end of the water falling pipe (10), and the lower end of the water falling pipe (10) penetrates through the second rubber plug (11) to be inserted into the inner cavity of the water collecting bottle (12).
2. The high-precision water sample suction filtration detection device as claimed in claim 1, wherein: a drain pipe (14) is fixed on the side part of the lower part of the water collecting bottle (12), and a drain valve is arranged on the drain pipe (14).
3. The high-precision water sample suction filtration detection device as claimed in claim 1, wherein: the bottom of sampling bottle (5) is fixed with communicating pipe (4), be fixed with the intercommunication valve on communicating pipe (4).
4. The high-precision water sample suction filtration detection device as claimed in claim 1, wherein: the inlet end of the water injection pipe (6) is connected with the distilled water bottle (1) through a hose (2), and the distilled water bottle (1) is fixed to the top of the support (3).
5. The high-precision water sample suction filtration detection device as claimed in claim 1, wherein: the sampling bottle (5), the sampling filter (9) and the water collecting bottle (12) are all fixed on the support (3), and scale marks are arranged on the sampling bottle (5).
6. The high-precision water sample suction filtration detection device according to claim 1, characterized in that: valves are arranged on the water injection pipe (6), the sampling pipe (7), the downpipe (10) and the vacuum pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010198759.0A CN111175087B (en) | 2020-03-20 | 2020-03-20 | High-precision water sample suction filtration detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010198759.0A CN111175087B (en) | 2020-03-20 | 2020-03-20 | High-precision water sample suction filtration detection device |
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| Publication Number | Publication Date |
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| CN111175087A CN111175087A (en) | 2020-05-19 |
| CN111175087B true CN111175087B (en) | 2023-02-28 |
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| CN202010198759.0A Active CN111175087B (en) | 2020-03-20 | 2020-03-20 | High-precision water sample suction filtration detection device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855378B (en) * | 2020-08-05 | 2023-06-20 | 中国地质科学院岩溶地质研究所 | Wild natural water sample collection system and method |
| CN115479805A (en) * | 2022-09-21 | 2022-12-16 | 单泽茜 | Water quality sand content sampling detection system and detection method for hydraulic engineering |
| CN118050209A (en) * | 2024-02-22 | 2024-05-17 | 中国人民解放军军事科学院军事医学研究院 | Portable suction filtration kit for water quality microorganism detection |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4450730A (en) * | 1981-04-08 | 1984-05-29 | Commissariat A L'energie Atomique | Liquid sampler wherein solution to be sampled is used as retrievable sampler wash |
| US4660423A (en) * | 1986-04-18 | 1987-04-28 | Armstrong John M | Water sampling apparatus |
| CN207964365U (en) * | 2018-01-09 | 2018-10-12 | 吉林省泰斯特生物电子工程有限公司 | A kind of water-sampling device |
| CN209231027U (en) * | 2018-11-29 | 2019-08-09 | 河套学院 | A kind of sampler of bioreactor |
-
2020
- 2020-03-20 CN CN202010198759.0A patent/CN111175087B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4450730A (en) * | 1981-04-08 | 1984-05-29 | Commissariat A L'energie Atomique | Liquid sampler wherein solution to be sampled is used as retrievable sampler wash |
| US4660423A (en) * | 1986-04-18 | 1987-04-28 | Armstrong John M | Water sampling apparatus |
| CN207964365U (en) * | 2018-01-09 | 2018-10-12 | 吉林省泰斯特生物电子工程有限公司 | A kind of water-sampling device |
| CN209231027U (en) * | 2018-11-29 | 2019-08-09 | 河套学院 | A kind of sampler of bioreactor |
Non-Patent Citations (1)
| Title |
|---|
| 流式细胞仪在水处理中的应用现状与展望;文刚等;《中国给水排水》;20140917(第18期);正文第58-62页 * |
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