CN103913346B - A kind of abyssal sediment repeatedly pressurize transfer equipment - Google Patents
A kind of abyssal sediment repeatedly pressurize transfer equipment Download PDFInfo
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- CN103913346B CN103913346B CN201410126575.8A CN201410126575A CN103913346B CN 103913346 B CN103913346 B CN 103913346B CN 201410126575 A CN201410126575 A CN 201410126575A CN 103913346 B CN103913346 B CN 103913346B
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- 238000005070 sampling Methods 0.000 claims abstract description 48
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Abstract
The invention discloses a kind of abyssal sediment repeatedly pressurize transfer equipment, comprise pressurize cylinder and sampling apparatus, also be provided with connector and cue ball valve, offer the sampling passage and sample output passage that are interconnected in described connector, described pressurize cylinder is docked with sampling passage by cue ball valve; Described sampling apparatus comprises: the sampler barrel being positioned at pressurize cylinder, and this sampler barrel has and extends the sampling working position of sampling passage through cue ball valve and be in and go out sample working position in connector; For driving the multi-stage expansion mechanism of sampler barrel; Be positioned at the piston of sampler barrel, during for being in out sample working position at sampler barrel, sample pushed away sampler barrel and enter sample output passage.The present invention adopts brand-new sub-sampling scheme, namely utilizes repeatedly telescoping mechanism, realizes sub sampling and the transfer of sample in pressure chamber, solves the defect that prior art volume is comparatively large, sample utilisation is not high.
Description
Technical field
The present invention relates to deep-sea detecting and research equipment field, be specifically related to a kind of abyssal sediment repeatedly pressurize transfer equipment.
Background technology
Oceanographic engineering is a not too proven technique field; abyssal sediment sampling is one of basic means of deep-marine-environment and resource exploration; investigation through decades is put into practice; define multiple effective sediment sampling mode, but developed slower for the exploitation of sample devices always.
At present, the device for sampling mainly comprises following a few class:
Multitube sampling thief, utilizes gravity to gather deposit on marine-bottom surface and overlying water thereof;
Deep-sea dredge, for gathering suspended particulate substance;
TV grab type sampling thief, for gathering sediment and top layer mineral.
But, by the thalassogenic sedimentation matter sample that above-mentioned sampling apparatus gathers, due to the change of the condition such as pressure, illumination, lost, the transition-metal ions oxidation state of gas phase dissolved constituent change, organic component decomposes and the mass mortality of piezophilic type microorganism, make to analyze data and are difficult to accurately reflect sedimental primitive component and state.
In recent years, pressure tight sampling technology is more and more subject to the attention of ocean, whole world educational circles, and fidelity sampler not only can provide the most real sample for ocean resources Environmental Studies, can also find the characteristic that the Nature is new by abyssopelagic organism research.In order to by abyssal sediment, particularly microbiological specimens wherein moves on to laboratory when keeping Deep-sea high voltage by in-situ transesterification, needs omnidistance pressurize.At present, be the many of sampler although domestic, also have the Situation of Microorganism Under Extremity Environment culture device of exploitation, lack whole set of system, particularly sample is not transferred to the device microbial cultivation equipment from sampler pressurize.The disappearance of key link causes research effect undesirable, and providing of this technology is monopolized primarily of offshore company.
What the PCATS system (PressureCoreAnalysisandTransferSystem) that such as Britain Geotek company develops adopted is method based on mechanical arm, after sampler is attached thereto, mechanical arm can drag vertically by whole in pressurize chamber for sample, can carry out sample cutting, detection in pressure chamber; When needs store, need sampler to take off, then storage silo is connected.PCATS equipment operates whole cylindrical sample, and volume is larger, and take lab space large, structure is more complicated, and equipment cost is high.
For another example, U.S. HYACINTH system (DeploymentofHYACEtoolsInNewTestsonHydrates) is when antithetical phrase sample operation, have one can 90 ° rotate cutting knifes, utilize mutually nested pipe and push rod, can make a part of sample under pipe reaches cutting knife, cutting knife rotates, and just make parton samples vertical fall in the storage silo of below, everything completes equally in pressure chamber.In contrast, this structure has carried out a sub sampling when pushing sample with push rod, and therefore sample utilisation is lower.
Summary of the invention
The invention provides a kind of abyssal sediment repeatedly pressurize transfer equipment, adopt brand-new sub-sampling scheme, namely utilize repeatedly telescoping mechanism, in pressure chamber, realize sub sampling and the transfer of sample, solve the defect that prior art volume is comparatively large, sample utilisation is not high.
The invention discloses a kind of abyssal sediment repeatedly pressurize transfer equipment, comprise pressurize cylinder and sampling apparatus, also be provided with connector and cue ball valve, offer the sampling passage and sample output passage that are interconnected in described connector, described pressurize cylinder is docked with sampling passage by cue ball valve;
Described sampling apparatus comprises:
Be positioned at the sampler barrel of pressurize cylinder, this sampler barrel has and extends the sampling working position of sampling passage through cue ball valve and be in and go out sample working position in connector;
For driving the multi-stage expansion mechanism of sampler barrel; Described multi-stage expansion mechanism can determine progression according to actual needs, and described progression is at least two-stage.
Be positioned at the piston of sampler barrel, during for being in out sample working position at sampler barrel, sample pushed away sampler barrel and enter sample output passage.
Connector is for being communicated with raw sample sampler and subsample storage warehouse, and as preferably, described connector is three-port structure, and described sampling passage linearly extends, and described sample output passage vertical connection is at the middle part of sampling passage;
Described raw sample sampler is provided with the first ball valve, and one end that sampling passage is connected with raw sample sampler is communicated with by the first ball valve;
The outlet of described sample output passage is connected with subsample storage silo; As preferably, described subsample storage silo is provided with the 3rd ball valve, and the outlet of described sample output passage is communicated with subsample storage silo with the 3rd ball valve by the second ball valve of series connection, transitional cylinder, to ensure stablizing of pressurize effect successively.
The sidewall of described connector is provided with sight glass, and described sight glass is in the junction of sampling passage and sample output passage.
Described multi-stage expansion mechanism comprises:
Rear motor, is fixed on one end of pressurize cylinder connector dorsad;
Sleeve, is slidably mounted in pressurize cylinder, and described sampler barrel and piston are all in sleeve;
Rear screw-nut body, for the interlock between rear motor and sleeve;
Front motor, is arranged in sleeve;
Front screw-nut body, for the interlock between front motor and described sampler barrel.
Described abyssal sediment repeatedly pressurize transfer equipment is also provided with accumulator, and accumulator can reduce the pressure surge of device interior.Described accumulator is connected with pressurize cylinder, connector lower end and hydraulic pump respectively by two three-way cut-off valves, connector lower end described herein and transitional cylinder.
As preferably, described connector and pressurize cylinder are respectively equipped with pressure relief component.
Described abyssal sediment repeatedly pressurize transfer equipment is also provided with control box, and control box is connected with rear motor with front motor respectively by operation circuit.
The guide pole arranged vertically is provided with in described pressurize cylinder, the location cylinder be slidably matched with guide pole is provided with between described pressurize cylinder and sleeve, axial linkage part is provided with between location cylinder and sleeve, described pressurize cylinder internal fixtion has sounding rod, and described location cylinder is provided with the magnet ring matched with sounding rod.
One end of the contiguous rear motor of described sleeve is provided with the shaft collar turned up, and this shaft collar is provided with sheathed the first pilot hole on the guide bar;
One end of the contiguous rear motor of location cylinder is provided with flanging, and this flanging is provided with sheathed the second pilot hole on the guide bar;
Described axial linkage part is sheathed spring on the guide bar, and this both ends of the spring abuts the flanging of shaft collar on sleeve and location cylinder respectively.
Described pressurize cylinder is provided with gland bonnet towards one end of rear motor.
Described rear screw-nut body comprises the rear leading screw running through gland bonnet and the back nut fixed with described sleeve, and described rear leading screw one end is connected with the main shaft of rear motor, and the other end extends into sleeve and matches with back nut.
Described front screw-nut body comprises front leading screw and nut before fixing with described sampler barrel;
Described front leading screw one end is connected with the main shaft of front motor, and the other end extends into described sampler barrel and matches with front nut;
The end axis of described piston and front leading screw is to being fixedly connected with.
Described sleeve is provided with axial arranged gathering sill, and described sampler barrel is provided with the guide pin be slidably matched along gathering sill.
The operating process of abyssal sediment of the present invention repeatedly pressurize transfer equipment is as follows:
1) side connector being sampled passage cue ball valve is dorsad connected by the first ball valve in raw sample sampler with raw sample sampler, the lower interface of connector sample output passage is connected with the 3rd ball valve by the second ball valve, transitional cylinder successively with between subsample storage silo, now, the first ball valve, the second ball valve, the 3rd ball valve and cue ball valve are all in closed condition;
2) hydraulic pump is communicated with pressurize cylinder, opens cue ball valve, pressurize in pressurize cylinder, until pressurize cylinder pressure is slightly larger than the force value in raw sample sampler, stop pressurization; Open the 3rd ball valve, hydraulic pump is communicated with transitional cylinder, pressurize in subsample storage silo, until subsample storage silo is suitable with pressurize cylinder pressure, open the second ball valve and the first ball valve;
3) drive rear motor, rear screw-nut body band moving sleeve and location cylinder are jointly to the motion of connector direction, and when location socket joint contacts raw sample in raw sample sampler surperficial, sleeve compresses spring moves on after distance to a declared goal and stops; Drive front motor, front screw-nut body motion drives sampler barrel to move to connector direction and stops at sampling working position and collects subsample;
4) treat that subsample collection terminates, rear screw-nut body counter motion, drive sampler barrel move to connector and stop at out sample working position in the other direction, now, sampler barrel front end arrives directly over sample output passage, can just be seen by sight glass; Front screw-nut body counter motion, subsample is released by the piston in sampler barrel, falls into subsample storage silo by sample output passage;
5) close the second ball valve and the 3rd ball valve, removal subsample storage silo, complete a second son acquisition operations.
6) under the sample output passage of connector, new subsample storage silo is reinstalled, open the 3rd ball valve, hydraulic pump is communicated with transitional cylinder, pressurize in subsample storage silo, until subsample storage silo is suitable with pressurize cylinder pressure, open the second ball valve and the first ball valve, repeat flow process 3) ~ 5), can multiple repairing weld be realized.
Compared with prior art, tool of the present invention has the following advantages:
Adopt abyssal sediment of the present invention repeatedly pressurize transfer equipment, the fluctuation of pressurize cylinder pressure remains on less than 10%, sampling transfer process can realize robotization, relative to other equipment, in repeatedly pressurize transfer process, sampler does not need mobile, and the subsample storage silo that only need more renew, preliminary works such as suppressing early stage can be simplified, easy to operate;
Adopt multi-stage expansion mechanism, longer straight-line displacement distance can be realized, indirectly reduce the axial dimension of pressurize transfer device; Be applicable to the sub sampling of sediment sample various uses in theory, improve plant factor, economic benefit and social benefit remarkable.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of abyssal sediment of the present invention repeatedly pressurize transfer equipment;
Fig. 2 is the structural representation of the abyssal sediment of the present invention repeatedly connector of pressurize transfer equipment;
Fig. 3 is the structural representation of the abyssal sediment of the present invention repeatedly pressurize cylinder of pressurize transfer equipment;
Fig. 4 is the structural representation of the abyssal sediment of the present invention repeatedly secondary telescoping mechanism of pressurize transfer equipment;
Fig. 5 is the structural representation of the abyssal sediment of the present invention repeatedly location mechanism of pressurize transfer equipment;
In figure, 1-connector, 2-cue ball valve, 3-pressurize cylinder, 4-secondary telescoping mechanism, 5-location mechanism, 6-control box, 7-accumulator, 8-three-way cut-off valve I, 9-three-way cut-off valve II, 10-transitional cylinder, 11-second ball valve;
100-sampling passage, 101-sight glass, 102-sample passage;
Connecting cylinder, 301-first O-ring seal, 302-pressurize cylinder main body, 303-second O-ring seal, 304-gland bonnet, 305-guide pole before 300-;
Sleeve, 410-front sleeve, 411-guide pin, 412-piston after screw-nut body, 406-rear motor, 407-shaft coupling, 408-first pilot hole, 409-after screw-nut body, 403-front motor, 404-shaft collar, 405-before 400-sampler barrel, 401-gathering sill, 402-;
500-location cylinder, 501-flanging, 502-magnet ring, 503-sounding rod, 504-electronics storehouse.
Embodiment
See Fig. 1 ~ 5, abyssal sediment of the present invention repeatedly pressurize transfer equipment comprises connector 1, cue ball valve 2, pressurize cylinder 3, secondary telescoping mechanism 4, location mechanism 5, control box 6 and accumulator 7.Wherein, between connector 1 and cue ball valve 2, between cue ball valve 2 with pressurize cylinder 3, all there is screw to be connected, and adopt O-ring seal to carry out pressurize sealing.
The sampling path 10 0 and sample output passage 102 that are interconnected is offered in connector 1, for three-port structure, sampling path 10 0 linearly extends, sample output passage 102 vertical connection is at the middle part of sampling path 10 0, wherein, the side of sampling path 10 0 cue ball valve 2 is dorsad communicated with raw sample sampler, and the outlet of sample output passage 102 is communicated with subsample storage warehouse by the second ball valve 11, transitional cylinder 10 successively; Connector 1 is just provided with sight glass 101 to the sidewall of sample output passage 102 mouthfuls.
Cue ball valve 2 is for docking connector 1 with the sampling path 10 0 of pressurize cylinder 3.
Pressurize cylinder 3 is divided into front connecting cylinder 300 and pressurize cylinder main body 302, and pressurize cylinder main body 302 is provided with gland bonnet 304 towards one end of rear motor 406, is also provided with the guide pole 305 arranged vertically in pressurize cylinder main body 302; Front connecting cylinder 300, between pressurize cylinder main body 302 and gland bonnet 304 successively with being threaded, and junction is sealed by O-ring seal.Pressurize cylinder 3 is provided with pressure relief component.
Pressurize cylinder 3 internal fixtion has sounding rod 503, and sounding rod 503 is connected towards the side of gland bonnet 304 with the electronics storehouse 504 be fixed on gland bonnet 304.
Secondary telescoping mechanism 4 comprises sleeve, rear motor 406, rear screw-nut body 405, front motor 403 and front screw-nut body 402.
Sleeve is divided into interconnective front sleeve 410 and rear sleeve 409, sleeve is slidably mounted in pressurize cylinder 3, one end of the contiguous rear motor 406 of rear sleeve 409 is provided with the shaft collar 404 turned up, and this shaft collar 404 is provided with the first pilot hole 408 be set on guide pole 305.
Front sleeve 410 is provided with axial arranged gathering sill 401, and sampler barrel 400 is provided with the guide pin 411 be slidably matched along gathering sill 401.
Be provided with the location cylinder 500 be slidably matched with guide pole 305 between pressurize cylinder 3 and sleeve, one end of the contiguous rear motor 406 of location cylinder 500 is provided with flanging 501, and this flanging 501 is provided with the second pilot hole be set on guide pole 305; Be provided with spring between location cylinder 500 and sleeve, this spring housing is located on guide pole 305, and both ends of the spring abuts shaft collar 404 and flanging 501 respectively; Location cylinder 500 is also provided with magnet ring 502, for coordinating the displacement of monitoring secondary telescoping mechanism with sounding rod 503.
Location cylinder 500, flanging 501, magnet ring 502, sounding rod 503 and electronics storehouse 504 constitute location mechanism 5 jointly.
Rear motor 406 is fixed on one end of pressurize cylinder 3 connector 1 dorsad.
Rear screw-nut body 405 comprises the rear leading screw running through gland bonnet 304 and the back nut fixed with rear sleeve 409, rear leading screw one end is connected with the main shaft of rear motor 406 by shaft coupling 407, the other end extends into rear sleeve 409 and matches with back nut, for the interlock between rear motor 406 and rear sleeve 409.
Front motor 403 is arranged in front sleeve 410.
Front screw-nut body 402 comprises front leading screw and nut before fixing with sampler barrel 400, front leading screw one end is connected with the main shaft of front motor 403, the other end extends into sampler barrel 400 and matches with front nut, for the interlock between front motor 403 and sampler barrel 400.
Sampler barrel 400 and piston 412 are all in front sleeve 410, and the end axis of piston 412 and front leading screw is to being fixedly connected with.
There are the parts such as PLC, button, display screen in control box 6, and are connected with rear motor 410 with front motor 406 respectively by operation circuit.
Three-way cut-off valve I 8 is communicated with accumulator 7 with pressurize cylinder 3, and three-way cut-off valve II 9 is connected with transitional cylinder 10 and hydraulic pump, and is interconnected between two three-way cut-off valves.
The course of work:
1) side of the sampling path 10 0 of connector 1 cue ball valve 2 is dorsad connected by the first ball valve in raw sample sampler with raw sample sampler, the lower interface of connector 1 sample output passage 102 is connected with the 3rd ball valve in subsample storage silo by the second ball valve 11, transitional cylinder 10 successively, now, the first ball valve, the second ball valve, the 3rd ball valve and cue ball valve are all in closed condition;
2) by controlling three-way cut-off valve I 8 and three-way cut-off valve II 9, hydraulic pump being communicated with pressurize cylinder 3, opening cue ball valve 2, pressurize in pressurize cylinder 3, until pressure, slightly larger than the force value in raw sample sampler, stops pressurization in pressurize cylinder 3; Open the 3rd ball valve, hydraulic pump is communicated with transitional cylinder 10, pressurize in subsample storage silo, until pressure is suitable in subsample storage silo and pressurize cylinder 3, open the second ball valve 11 and the first ball valve;
3) drive rear motor 406, rear screw-nut body 405 is with moving sleeve and location cylinder 500 jointly to the motion of connector 1 direction, and when location cylinder 500 touches raw sample in raw sample sampler surperficial, sleeve compresses spring moves on after distance to a declared goal and stops; Drive front motor 403, front screw-nut body 402 moves to drive sampler barrel 400 to move to connector 1 direction and stop at sampling working position and collects subsample;
4) treat that subsample collection terminates, the counter motion of rear screw-nut body 405, drives sampler barrel 400 move to connector 1 and stop at out sample working position in the other direction, now, sampler barrel 400 front end arrives directly over sample output passage 102, can just be seen by sight glass 101; The counter motion of front screw-nut body 402, subsample is released by the piston 412 in sampler barrel 400, falls into subsample storage silo by sample output passage 102;
5) close the second ball valve 11 and the 3rd ball valve, removal subsample storage silo, complete a second son acquisition operations.
6) new subsample storage silo is reinstalled for 102 times at the sample output passage of connector 1, open the 3rd ball valve, hydraulic pump is communicated with transitional cylinder 10, pressurize in subsample storage silo, until pressure is suitable in subsample storage silo and pressurize cylinder 3, open the second ball valve 11 and the first ball valve, repeat flow process 3) ~ 5), can multiple repairing weld be realized.
Claims (9)
1. an abyssal sediment repeatedly pressurize transfer equipment, comprise pressurize cylinder and sampling apparatus, it is characterized in that, be also provided with connector and cue ball valve, offer the sampling passage and sample output passage that are interconnected in described connector, described pressurize cylinder is docked with sampling passage by cue ball valve;
Described sampling apparatus comprises:
Be positioned at the sampler barrel of pressurize cylinder, this sampler barrel has and extends the sampling working position of sampling passage through cue ball valve and be in and go out sample working position in connector;
For driving the multi-stage expansion mechanism of sampler barrel; Described multi-stage expansion mechanism comprises:
Rear motor, is fixed on one end of pressurize cylinder connector dorsad;
Sleeve, is slidably mounted in pressurize cylinder, and described sampler barrel and piston are all in sleeve;
Rear screw-nut body, for the interlock between rear motor and sleeve;
Front motor, is arranged in sleeve;
Front screw-nut body, for the interlock between front motor and described sampler barrel;
Be positioned at the piston of sampler barrel, during for being in out sample working position at sampler barrel, sample pushed away sampler barrel and enter sample output passage.
2. abyssal sediment according to claim 1 repeatedly pressurize transfer equipment, is characterized in that, be also provided with accumulator, accumulator by two three-way cut-off valves respectively with pressurize cylinder, connector lower end and be connected with the hydraulic pump for pressurizeing to pressurize cylinder.
3. abyssal sediment according to claim 1 repeatedly pressurize transfer equipment, is characterized in that, described connector is three-port structure, and described sampling passage linearly extends, and described sample output passage vertical connection is at the middle part of sampling passage;
The outlet of described sample output passage is connected with subsample storage silo by the second ball valve;
The sidewall of described connector is provided with sight glass, and described sight glass is in the junction of sampling passage and sample output passage.
4. abyssal sediment according to claim 1 repeatedly pressurize transfer equipment, it is characterized in that, the guide pole arranged vertically is provided with in described pressurize cylinder, the location cylinder be slidably matched with guide pole is provided with between described pressurize cylinder and sleeve, axial linkage part is provided with between location cylinder and sleeve, described pressurize cylinder internal fixtion has sounding rod, and described location cylinder is provided with the magnet ring matched with sounding rod.
5. abyssal sediment according to claim 4 repeatedly pressurize transfer equipment, is characterized in that, one end of the contiguous rear motor of described sleeve is provided with the shaft collar turned up, and this shaft collar is provided with sheathed the first pilot hole on the guide bar;
One end of the contiguous rear motor of location cylinder is provided with flanging, and this flanging is provided with sheathed the second pilot hole on the guide bar;
Described linkage part is sheathed spring on the guide bar, and this both ends of the spring abuts the flanging of shaft collar on sleeve and location cylinder respectively.
6. abyssal sediment according to claim 1 repeatedly pressurize transfer equipment, is characterized in that, described pressurize cylinder is provided with gland bonnet towards one end of rear motor.
7. abyssal sediment according to claim 1 repeatedly pressurize transfer equipment, it is characterized in that, described rear screw-nut body comprises the rear leading screw running through gland bonnet and the back nut fixed with described sleeve, described rear leading screw one end is connected with the main shaft of rear motor, and the other end extends into sleeve and matches with back nut.
8. abyssal sediment according to claim 1 repeatedly pressurize transfer equipment, is characterized in that, described front screw-nut body comprises front leading screw and nut before fixing with described sampler barrel;
Described front leading screw one end is connected with the main shaft of front motor, and the other end extends into described sampler barrel and matches with front nut;
The end axis of described piston and front leading screw is to being fixedly connected with.
9. abyssal sediment according to claim 1 repeatedly pressurize transfer equipment, it is characterized in that, described sleeve is provided with axial arranged gathering sill, and described sampler barrel is provided with the guide pin be slidably matched along gathering sill.
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| CN201410126575.8A CN103913346B (en) | 2014-03-31 | 2014-03-31 | A kind of abyssal sediment repeatedly pressurize transfer equipment |
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| CN201410126575.8A CN103913346B (en) | 2014-03-31 | 2014-03-31 | A kind of abyssal sediment repeatedly pressurize transfer equipment |
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| CN104109627B (en) * | 2014-07-14 | 2017-01-11 | 上海交通大学 | Portable high pressure microorganism transferring and culturing device |
| CN104215483B (en) * | 2014-08-25 | 2017-02-22 | 浙江大学 | Deep-sea sediment pressure-maintaining sampling and transferring device and application method thereof |
| CN104564855B (en) * | 2015-01-19 | 2016-08-17 | 浙江大学 | A kind of double hydraulic cylinder pressure regulation pressure-retaining system for pressurize transfer and control method thereof |
| CN105954529B (en) * | 2016-05-27 | 2017-11-14 | 浙江大学 | Deep-sea water body example pressurize transfer and culture apparatus |
| CN106546444B (en) * | 2016-09-23 | 2019-03-22 | 浙江大学 | It is a kind of can be with the secondary pressure maintaining deposit sampler of self-balancing |
| CN107179207B (en) * | 2017-05-16 | 2018-07-24 | 北京探矿工程研究所 | Rotary pressure-maintaining transfer device for marine geological exploration samples and control method |
| CN107132186B (en) * | 2017-06-28 | 2023-05-26 | 成都理工大学 | Submarine sediment probe and detection method |
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| CN110208029B (en) * | 2019-05-13 | 2021-05-14 | 浙江大学 | Pressure-maintaining and transferring deep-well sediment pressure-maintaining sampling device |
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| CN111829814B (en) * | 2020-07-20 | 2022-01-28 | 西南石油大学 | Ball valve for sampling, natural gas hydrate fidelity sampler and sampling method |
| CN113640038B (en) * | 2021-06-22 | 2022-07-12 | 浙江大学 | Pressure maintaining transfer device and method for covering water in submarine sediment |
| CN114354245B (en) * | 2021-12-02 | 2024-03-19 | 浙江大学 | Water-covering pollution-free and sediment low-disturbance repeated pressure-maintaining separation transfer device |
| CN114354243B (en) * | 2021-12-02 | 2023-09-19 | 浙江大学 | Fidelity sampler containing overlying water deep sea methane leakage interface sediment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4329883A (en) * | 1974-04-26 | 1982-05-18 | The United States Of America As Represented By The Secretary Of The Navy | Apparatus for collecting deep-sea sediment pore water |
| CN101514944B (en) * | 2009-03-19 | 2012-01-04 | 浙江大学 | Hydraulic drive sampling assemble for seabed cylindrical sample |
| CN201763324U (en) * | 2010-08-31 | 2011-03-16 | 仝美娟 | Sampler |
| CN203798603U (en) * | 2014-03-31 | 2014-08-27 | 浙江大学 | Repeatedly pressure-maintaining transfer equipment for abyssal sediments |
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