CN116818426A - Sediment pore water time series sampling device - Google Patents
Sediment pore water time series sampling device Download PDFInfo
- Publication number
- CN116818426A CN116818426A CN202310929069.1A CN202310929069A CN116818426A CN 116818426 A CN116818426 A CN 116818426A CN 202310929069 A CN202310929069 A CN 202310929069A CN 116818426 A CN116818426 A CN 116818426A
- Authority
- CN
- China
- Prior art keywords
- cover
- gravity
- pore water
- sampler
- cylinder
- 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
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000011148 porous material Substances 0.000 title claims abstract description 33
- 239000013049 sediment Substances 0.000 title claims abstract description 28
- 230000003204 osmotic effect Effects 0.000 claims abstract description 56
- 230000005484 gravity Effects 0.000 claims abstract description 51
- 239000002775 capsule Substances 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 230000035515 penetration Effects 0.000 claims abstract description 4
- 239000000919 ceramic Substances 0.000 claims description 14
- 239000004744 fabric Substances 0.000 claims description 6
- 239000012047 saturated solution Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 238000011065 in-situ storage Methods 0.000 abstract description 9
- 230000007774 longterm Effects 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 4
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 239000013535 sea water Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000011066 ex-situ storage Methods 0.000 description 2
- 230000002572 peristaltic effect Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a sediment pore water time sequence sampling device, which relates to the technical field of deep sea sampling, and mainly comprises a gravity laying cover, a gravity releasing cover and a sampler; the gravity distribution cover and the gravity release cover are both cylindrical structures; the gravity release cover is arranged in the gravity distribution cover; the sampler is arranged in the gravity release cover; the middle part of the outer wall of the gravity placing cover is provided with a fixed connecting plate, the fixed connecting plate is provided with a penetration release oil cylinder, a cylinder rod penetrating the release oil cylinder is connected with one end of a telescopic support guide rod, the other end of the telescopic support guide rod penetrates through the gravity placing cover and the gravity release cover and then contacts with the sampler, and the telescopic support guide rod is used for vertically limiting the sampler. The osmotic pressure of the osmotic capsule pump is utilized to provide power, so that the sampler can safely and independently collect water samples continuously. Provides important technical means support for long-term autonomous sampling of deep sea pore water in situ, and can be applied to the fields of marine natural gas hydrate exploration and exploitation, marine ecological environment monitoring and the like.
Description
Technical Field
The invention relates to the technical field of deep sea sampling, in particular to a sediment pore water time sequence sampling device.
Background
The pore water contains a great deal of geochemical information, and the content and distribution state of dissolved components in the pore water are effective methods for researching geochemical and geological effects in sediment. The prior pore water geochemistry method obtains a plurality of important research results in the fields of early diagenesis, natural gas hydrate research and the like. At present, along with the aggravation of industrial activities, water pollution is increasingly serious. Therefore, time monitoring in a porous water environment is of great importance for environmental protection and human health.
Pore water sampling commonly used at present is mainly divided into ex-situ sampling and in-situ sampling. The ex-situ sampling mainly comprises a centrifugal method, a squeezing method and the like, and gas in the sample is dissipated, organic components are decomposed and ions are oxidized in the sampling process, so that the components in the sample are greatly influenced. In-situ sampling mainly comprises dialysis bag devices (pepers), rhizons, DGT and other in-situ sampling devices for short term and in-situ sampling devices powered by peristaltic pumps or osmotic pumps. In-situ sampling devices for short periods cannot meet the long-term continuous sampling requirements. The existing in-situ acquisition device using peristaltic pumps and the like as power has the defects of complex structure, limited sampling depth and point location, incapability of simultaneously considering the problems of rich sampling density and sample quantity, and incapability of determining corresponding sampling within a certain time. When the method is applied to a deep sea environment, the problems of difficult heat preservation, pressure maintaining and the like are very easy to occur due to the complex deep sea environment, and the time sequence sampling of the deep sea sediment pore water is difficult to realize.
Therefore, it is necessary to develop a sediment pore water time series sampling system that enables safe and autonomous acquisition of pore water samples in time series.
Disclosure of Invention
The object of the present invention is to provide a sediment pore water time series sampling system, which solves the problems of the prior art and can safely and autonomously collect pore water samples in time series.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides a sediment pore water time sequence sampling device which comprises a gravity distribution cover, a gravity release cover and a sampler; the gravity placing cover and the gravity releasing cover are both cylindrical structures; the gravity release cover is arranged in the gravity distribution cover; the sampler is arranged in the gravity release cover; the gravity cloth cover is characterized in that a fixed connecting plate is arranged in the middle of the outer wall of the gravity cloth cover, a penetration release oil cylinder is arranged on the fixed connecting plate, a cylinder rod penetrating the release oil cylinder is connected with one end of a telescopic support guide rod, the other end of the telescopic support guide rod penetrates through the gravity cloth cover and contacts with the sampler after the gravity release cover, and the telescopic support guide rod is used for vertically limiting the sampler.
Optionally, a flow control outlet is arranged on the side wall of the lower part of the gravity release cover.
Optionally, the sampler comprises a cylinder, a contact pin tool bit connecting piece, a ceramic filter element and a contact pin tool bit; one end of the contact pin is connected with the bottom of the cylinder body, and the other end of the contact pin is connected with the ceramic filter element through the contact pin tool bit connecting piece; the bottom of the ceramic filter element is provided with the contact pin tool bit.
Optionally, a handle is arranged at the top of the cylinder.
Optionally, the cylinder body comprises an upper end cover and a lower end cover; the handle is arranged on the upper end cover, and one end of the contact pin is connected with the lower end cover.
Optionally, a sampling control switch is arranged at the top of the cylinder.
Optionally, an osmotic pump cylinder is arranged in the cylinder, an osmotic baffle structure is arranged in the middle of the inside of the osmotic pump cylinder, a saturated solution tank is arranged above the osmotic baffle structure in the osmotic pump cylinder, and a pure water tank is arranged below the osmotic baffle structure in the osmotic pump cylinder; the bottom surface of the permeation baffle plate structure is provided with a plurality of capsule permeation pumps, and a conduit is arranged between the capsule permeation pumps and the ceramic filter element.
Optionally, the osmotic pump cylinder body includes osmotic pump upper end cover and osmotic pump lower extreme cover, be provided with the waste liquid export on the osmotic pump upper end cover, be provided with the capillary interface on the osmotic pump lower extreme cover, the capillary interface be used for with the one end of pipe is connected.
Optionally, a disc tube shaft is arranged below the osmotic pump cylinder in the cylinder, and a conduit disc supporting ring and a conduit disc cover plate are sequentially arranged on the disc tube shaft from top to bottom.
Optionally, the coil shaft top is provided with coil bracket limit cap, coil bracket limit cap is used for the location the top of coil shaft.
Compared with the prior art, the invention has the following technical effects:
(1) The gravity penetration system enables the sampler to be stably penetrated into the sediment. Due to the existence of the flow control outlet, the seawater in the release cover cannot be immediately discharged during the process of penetrating into sediment, so that the seawater in the release cover generates upward reaction force on the sampler.
(2) The device can customize the sampling rate according to the Alzet osmotic capsule pumps with different numbers so as to be oriented to different scientific researches.
(3) When a sample needs to be transferred, conversion can be carried out according to the length of the catheter, so that a time series pore water sample is obtained.
(4) The invention provides a device for automatically and continuously collecting water samples by utilizing the osmotic pressure of an osmotic capsule pump to provide power. The invention provides an important technical means support for long-term autonomous sampling of deep sea pore water in situ, and can be applied to the fields of marine natural gas hydrate exploration and exploitation, marine ecological environment monitoring and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a cross-sectional view of the structure of the device of the present invention.
Reference numerals illustrate: 1. a handle; 2. an upper end cap; 3. a telescopic support guide rod; 4. penetrating into a release oil cylinder; 5. the cover is laid by gravity; 6. fixing the connecting plate; 7. a cylinder; 8. a contact pin; 9. a pin bit connector; 10. a ceramic filter element; 11. a pin cutter head; 12. an upper end cover of the osmotic pump; 13. a saturated solution tank; 14. a permeate pump cartridge; 15. a pure water tank; 16. a lower end cover of the osmotic pump; 17. coil pipe bracket limit cover; 18. a disc tube shaft; 19. a conduit disc support ring; 20. a gravity release cover; 21. a flow control outlet; 22. a lower end cap; 23. a conduit tray cover plate; 24. a capillary interface; 25. a capsule osmotic pump; 26. a permeate baffle structure; 27. a waste liquid outlet; 28. and a sampling control switch.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 3, the present embodiment provides a sediment pore water time series sampling apparatus including a gravity distribution cover 5, a gravity release cover 20, and a sampler; the gravity distribution cover 5 and the gravity release cover 20 are both cylindrical structures; the gravity release cover 20 is arranged in the gravity distribution cover 5; the sampler is disposed within the gravity release mask 20; the middle part of the outer wall of the gravity placing cover 5 is provided with a fixed connecting plate 6, the fixed connecting plate 6 is provided with a penetrating release oil cylinder 4, a cylinder rod penetrating the release oil cylinder 4 is connected with one end of a telescopic support guide rod 3, the other end of the telescopic support guide rod 3 penetrates through the gravity placing cover 5 and the gravity releasing cover 20 and then contacts with the sampler, and the telescopic support guide rod 3 is used for vertically limiting the sampler.
In this embodiment, the sampler comprises a barrel 7, a contact pin 8, a contact pin tool bit connecting piece 9, a ceramic filter element 10 and a contact pin tool bit 11; one end of the contact pin 8 is connected with the bottom of the cylinder 7, and the other end of the contact pin 8 is connected with the ceramic filter element 10 through the contact pin tool bit connecting piece 9; the bottom of the ceramic filter element 10 is provided with a pin cutter head 11. The cylinder 7 comprises an upper end cover 2 and a lower end cover 22; the handle 1 is arranged on the upper end cover 2, and one end of the contact pin 8 is connected with the lower end cover 22. The top of the cylinder 7 is provided with a sampling control switch 28.
The osmotic pump cylinder body 14 is arranged in the cylinder body 7, the osmotic baffle plate structure 26 is arranged in the middle part in the osmotic pump cylinder body 14, the saturated solution tank 13 is arranged above the osmotic baffle plate structure 26 in the osmotic pump cylinder body 14, and the pure water tank 15 is arranged below the osmotic baffle plate structure 26 in the osmotic pump cylinder body 14; a plurality of capsule osmotic pumps 25 are arranged on the bottom surface of the osmotic baffle structure 26, and a conduit is arranged between the capsule osmotic pumps 25 and the ceramic filter element 10.
The osmotic pump cylinder 14 comprises an upper osmotic pump end cover 12 and a lower osmotic pump end cover 16, wherein a waste liquid outlet 27 is arranged on the upper osmotic pump end cover 12, a capillary interface 24 is arranged on the lower osmotic pump end cover 16, and the capillary interface 24 is used for being connected with one end of a catheter.
A tube shaft 18 is arranged below the osmotic pump tube 14 in the tube 7, and a conduit disc supporting ring 19 and a conduit disc cover plate 23 are sequentially arranged on the tube shaft 18 from top to bottom.
The top of the coiled pipe shaft 18 is provided with a coiled pipe bracket limiting cover 17, and the coiled pipe bracket limiting cover 17 is connected with the lower end cover 16 of the osmotic pump and is used for positioning the top of the coiled pipe shaft 18.
A flow control outlet 21 is provided in the lower side wall of the gravity release mask 20.
The sediment pore water time sequence sampling device in the invention has the following working processes:
the whole set of device is fixed in a deep sea sediment soil layer through carrying a movable ground detection platform and a laying device of a platform body or carries a lander for long-term monitoring work. Before the sampler is laid, the telescopic support guide rod 3 extends out and is supported at the lower end cover 22 of the sampler. The long capillary tube is prefilled with deionized water and coiled in the coil shaft 18.
When the sampler is laid out, the penetrating and releasing oil cylinder 4 slowly recovers the telescopic supporting guide rod 3, and the sampler penetrates into sediment under the action of gravity. Due to the existence of the flow control outlet 21, the seawater in the gravity release cover 20 cannot be immediately discharged during the process of penetrating the sediment, so that the seawater in the gravity release cover 20 generates upward reaction force to the sampler, and the sampler can be stably penetrated into the sediment.
After the dispensing is completed, the sampling control switch 28 is turned on, the sampling action is started, and the capsule osmotic pump 25 supplies power for sampling. At this time, the pore water sample collected by the sampling water inlet is filtered by the ceramic filter element 10 and flows into the long capillary tube to replace pure water in the long capillary tube, the pure water in the tube flows into the pure water tank 15 through the capillary tube interface 24, and enters the saturated solution tank 13 through the capsule osmotic pump 25 under the action of osmotic pressure. During sampling, the pore water sample continuously replaces pure water in the conduit, the salt solution volume in the saturated solution tank 13 continuously becomes larger, and finally the diluted salt solution can be discharged through the waste liquid outlet 27.
The sampler continuously samples the pore water of the deep sea sediment only by osmotic pressure, electric drive is not needed, the sampling time can be more than one year, and the gap of the in-situ pore water sampler in the aspect of time precision is filled.
It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
The principles and embodiments of the present invention have been described in this specification with reference to specific examples, the description of which is only for the purpose of aiding in understanding the method of the present invention and its core ideas; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (10)
1. The sediment pore water time sequence sampling device is characterized by comprising a gravity distribution cover, a gravity release cover and a sampler; the gravity placing cover and the gravity releasing cover are both cylindrical structures; the gravity release cover is arranged in the gravity distribution cover; the sampler is arranged in the gravity release cover; the gravity cloth cover is characterized in that a fixed connecting plate is arranged in the middle of the outer wall of the gravity cloth cover, a penetration release oil cylinder is arranged on the fixed connecting plate, a cylinder rod penetrating the release oil cylinder is connected with one end of a telescopic support guide rod, the other end of the telescopic support guide rod penetrates through the gravity cloth cover and contacts with the sampler after the gravity release cover, and the telescopic support guide rod is used for vertically limiting the sampler.
2. The sediment pore water time series sampling apparatus of claim 1, wherein a flow control outlet is provided on a lower sidewall of the gravity release cover.
3. The sediment pore water time series sampling device of claim 1, wherein the sampler comprises a barrel, a pin bit connector, a ceramic filter element and a pin bit; one end of the contact pin is connected with the bottom of the cylinder body, and the other end of the contact pin is connected with the ceramic filter element through the contact pin tool bit connecting piece; the bottom of the ceramic filter element is provided with the contact pin tool bit.
4. A sediment pore water time series sampling apparatus as claimed in claim 3, wherein the top of the barrel is provided with a handle.
5. The sediment pore water time series sampling apparatus of claim 4, wherein the cylinder comprises an upper end cap and a lower end cap; the handle is arranged on the upper end cover, and one end of the contact pin is connected with the lower end cover.
6. A sediment pore water time series sampling apparatus as claimed in claim 3, wherein the top of the barrel is provided with a sampling control switch.
7. The sediment pore water time series sampling device according to claim 3, wherein an osmotic pump cylinder is arranged in the cylinder, an osmotic baffle structure is arranged in the middle of the inside of the osmotic pump cylinder, a saturated solution tank is arranged above the osmotic baffle structure in the osmotic pump cylinder, and a pure water tank is arranged below the osmotic baffle structure in the osmotic pump cylinder; the bottom surface of the permeation baffle plate structure is provided with a plurality of capsule permeation pumps, and a conduit is arranged between the capsule permeation pumps and the ceramic filter element.
8. The sediment pore water time series sampling device of claim 7, wherein the osmotic pump cylinder comprises an osmotic pump upper end cover and an osmotic pump lower end cover, a waste liquid outlet is arranged on the osmotic pump upper end cover, and a capillary interface is arranged on the osmotic pump lower end cover and is used for being connected with one end of the conduit.
9. The sediment pore water time series sampling device of claim 7, wherein a disk tube shaft is arranged below the osmotic pump cylinder in the cylinder, and a conduit disk supporting ring and a conduit disk cover plate are sequentially arranged on the disk tube shaft from top to bottom.
10. The sediment pore water time series sampling device of claim 9, wherein the coil shaft top is provided with a coil bracket spacing cover for positioning the coil shaft top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310929069.1A CN116818426A (en) | 2023-07-26 | 2023-07-26 | Sediment pore water time series sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310929069.1A CN116818426A (en) | 2023-07-26 | 2023-07-26 | Sediment pore water time series sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116818426A true CN116818426A (en) | 2023-09-29 |
Family
ID=88122215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310929069.1A Pending CN116818426A (en) | 2023-07-26 | 2023-07-26 | Sediment pore water time series sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116818426A (en) |
-
2023
- 2023-07-26 CN CN202310929069.1A patent/CN116818426A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109490500B (en) | Hard sediment water sample layered sampling and real-time monitoring device | |
| CN103323290A (en) | Sampler for sediment pore water sampling in rivers or lakes | |
| CN110389054A (en) | The long-term in-situ sampling of the big depth section pore water of bottom sediment and analysis method | |
| US9772262B1 (en) | Diffusion sampler | |
| CN111397968B (en) | Device for in-situ collection of pore water and gas in sediment and wetland soil | |
| CN104833547B (en) | A kind of pore water water acquisition post in situ and water sampling method | |
| EP1929268A1 (en) | Sampling device and method for monitoring of liquids | |
| CN115060551B (en) | Water pollution detection device | |
| Beck et al. | In situ pore water sampling in deep intertidal flat sediments | |
| CN116818426A (en) | Sediment pore water time series sampling device | |
| CN110967462A (en) | Distributed automatic water quality monitoring device, monitoring ship and monitoring method | |
| CN203231915U (en) | Sampler for sampling pore water of sediments in rivers or lakes | |
| CN117168910A (en) | Deep sea shallow surface pore water sampling device and sampling method thereof | |
| JP7548515B2 (en) | Fluid sampling apparatus | |
| CN212134230U (en) | Water layering collection system | |
| KR101433035B1 (en) | Clean surface water sampler | |
| CN208383510U (en) | The long-term in-situ sampling of pore water and analytical equipment | |
| CN108362525B (en) | Modularized device capable of taking liquid from saturated or unsaturated soil in multiple layers | |
| CN116698565A (en) | Online sampling and enriching equipment and method for perfluorinated compounds in groundwater | |
| CN203490100U (en) | In-situ sampling and on-line testing device for sewage plant and water recycling plant | |
| CN113530526B (en) | Underground long-period fluid flux monitoring device and method | |
| RU102112U1 (en) | PROBE FOR SAMPLING WATER FROM BOTTOM SEDIMENTS | |
| CN207163752U (en) | A kind of biological activated carbon pond water sampler | |
| CN208013213U (en) | One-dimensional island underground water desalinates simulation test device | |
| CN111238877A (en) | Sediment pore water and lake water body in-situ gas-liquid sampling device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |