CN103913346A - Multi-time pressure maintaining transfer equipment for deep-sea sediments - Google Patents
Multi-time pressure maintaining transfer equipment for deep-sea sediments Download PDFInfo
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Abstract
The invention discloses multi-time pressure maintaining transfer equipment for deep-sea sediments. The multi-time pressure maintaining transfer equipment comprises a pressure maintaining barrel and a sampling device and is further provided with a connector and a main ball valve, wherein the connector is internally provided with a sampling channel and a sample discharging channel which are communicated with each other; the pressure maintaining barrel is in butt joint with the sampling channel by the main ball valve; the sampling device comprises a sampling barrel located in the pressure maintaining barrel, a multi-grade retracting mechanism for driving the sampling barrel and a piston located in the sampling barrel, wherein the sampling barrel is provided with a sampling working position which extends out of the sampling channel via the main ball valve and a sample discharging working position located in the connector; the piston is used for pushing away a sample from the sampling barrel to enter the sample discharging channel when the sampling barrel is located at the sample discharging working position. The multi-time pressure maintaining transfer equipment adopts a brand-new sub-sampling scheme, namely the retracting mechanism is used for a plurality of times so as to realize sub-sampling and transferring of the sample in a pressure cavity; the defects in the prior art that the volume is large and the utilization rate of the sample is not high are overcome.
Description
Technical field
The present invention relates to deep-sea detecting and research equipment field, be specifically related to repeatedly pressurize transfer equipment of a kind of abyssal sediment.
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; through the investigation practice of decades; form multiple effective sediment sampling mode, but developed slower for the exploitation of sample devices always.
At present, mainly comprise following a few class for the device of sampling:
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, the thalassogenic sedimentation matter sample gathering by above-mentioned sampling apparatus, due to the variation of the condition such as pressure, illumination, the mass mortality of scatter and disappear, the appraise at the current rate change of ionic oxide formation state, organic component decomposition and the piezophilic type microorganism of gas phase dissolved constituent, makes to analyze data and is 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, for ocean resources Environmental Studies provide the most real sample, can also be studied and be found the new characteristic of the Nature by abyssopelagic organism.For by abyssal sediment, particularly microbiological specimens wherein moves on to laboratory by in-situ transesterification in the situation that keeping deep-sea high pressure, 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 a 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 mainly of this technology monopolized by offshore company.
What the PCATS system (Pressure Core Analysis and Transfer System) of developing such as Geotek company of Britain adopted is the method based on mechanical arm, after sampler is attached thereto, mechanical arm can drag vertically by whole in pressurize chamber sample, in pressure chamber, can carry out sample cutting, detection; In the time that needs are stored, sampler need to be taken off, then storage silo is connected up.PCATS equipment operates whole cylindrical sample, and volume is larger, takies lab space large, and structure is more complicated, and equipment cost is high.
For another example, U.S. HYACINTH system (Deployment of HYACE tools In New Tests on Hydrates) is in the time of antithetical phrase sample operation, have one can 90 ° of rotations cutting knife, utilize mutually nested pipe and push rod, can make a part of sample reach under cutting knife through pipe, cutting knife rotation, just makes parton samples vertical fall in the storage silo of below, and everything completes equally in pressure chamber.Compare, this structure has been carried out sub sampling one time in pushing sample with push rod, and therefore sample utilization factor is lower.
Summary of the invention
The invention provides repeatedly pressurize transfer equipment of a kind of abyssal sediment, adopt brand-new sub sampling scheme, utilize repeatedly telescoping mechanism, in pressure chamber, realize sub sampling and the transfer of sample, solved the defect that prior art volume is large, sample utilization factor is not high.
The invention discloses repeatedly pressurize transfer equipment of a kind of abyssal sediment, comprise pressurize cylinder and sampling apparatus, also be provided with connector and cue ball valve, offer the sampling passage and the sample output passage that are interconnected in described connector, described pressurize cylinder docks with sampling passage by cue ball valve;
Described sampling apparatus comprises:
Be positioned at the sampler barrel of pressurize cylinder, this sampler barrel has to extend the sampling working position of sampling passage and be in through cue ball valve and goes out sample working position in connector;
For driving the multi-stage expansion mechanism of sampler barrel; Described multi-stage expansion mechanism can be determined progression according to actual needs, and described progression is at least two-stage.
Be positioned at the piston of sampler barrel, enter sample output passage for sample being pushed away to sampler barrel at sampler barrel in the time going out sample working position.
Connector is used for being communicated with raw sample sampler and subsample storage warehouse, and as preferably, described connector is three-port structure, and described sampling passage extends along straight line, 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 by the second ball valve, transitional cylinder and the 3rd ball valve of series connection successively, to ensure stablizing of pressurize effect.
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 pressurize cylinder one end of 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, and connector lower end described herein is transitional cylinder.
As preferably, on described connector and pressurize cylinder, be respectively equipped with pressure release parts.
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.
In described pressurize cylinder, be provided with the guide pole of arranging vertically, between described pressurize cylinder and sleeve, be provided with the location cylinder being slidably matched with guide pole, between location cylinder and sleeve, be provided with axial linkage part, in described pressurize cylinder, be fixed with sounding rod, described location cylinder is provided with the magnet ring matching with sounding rod.
One end of the contiguous rear motor of described sleeve is provided with the shaft collar turning up, and this shaft collar is provided with the first pilot hole being set on guide pole;
One end of the contiguous rear motor of location cylinder is provided with flanging, and this flanging is provided with the second pilot hole being set on guide pole;
Described axial linkage part is the spring being set on guide pole, the shaft collar on this both ends of the spring difference butt sleeve and the flanging of location cylinder.
Described pressurize cylinder is provided with gland bonnet towards one end of rear motor.
Described rear screw-nut body comprises the back nut that runs through the rear leading screw of gland bonnet and fix 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.
The front nut that described front screw-nut body comprises front leading screw and fixes 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;
Described piston with the end axis of front leading screw to being fixedly connected with.
Described sleeve is provided with axial arranged gathering sill, and described sampler barrel is provided with the guide pin being slidably matched along gathering sill.
The abyssal sediment of the present invention repeatedly operating process of pressurize transfer equipment is as follows:
1) connector is sampled passage dorsad a side of cue ball valve be connected by the first ball valve in raw sample sampler with raw sample sampler, between the lower interface of connector sample output passage and subsample storage silo, be connected by the second ball valve, transitional cylinder and the 3rd ball valve successively, 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, in pressurize cylinder, pressurize, 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, in subsample storage silo, pressurize, 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 be jointly to connector direction motion, and in the time that 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 and stop at sampling working position to connector direction and collects subsample;
4) treat that subsample collection finishes, rear screw-nut body counter motion, drives sampler barrel move and stop at out sample working position to connector in the other direction, and now, sampler barrel front end arrives directly over sample output passage, can just be seen by sight glass; Front screw-nut body counter motion, the piston in sampler barrel is released subsample, falls into subsample storage silo by sample output passage;
5) close the second ball valve and the 3rd ball valve, removal subsample storage silo, completes a second son acquisition operations.
6) under the sample output passage of connector, reinstall new subsample storage silo, open the 3rd ball valve, hydraulic pump is communicated with transitional cylinder, in subsample storage silo, pressurize, 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 realize repeatedly sampling.
Compared with prior art, tool of the present invention has the following advantages:
Adopt repeatedly pressurize transfer equipment of abyssal sediment of the present invention, the fluctuation of pressurize cylinder pressure remains on below 10%, sampling transfer process can realize robotization, with respect to other equipment, in repeatedly pressurize transfer process, sampler does not need mobile, and the subsample storage silo that only need more renew, can simplify early stage and the preliminary work such as suppress, easy to operate;
Adopt multi-stage expansion mechanism, can realize longer straight-line displacement distance, indirectly reduced the axial dimension of pressurize transfer device; Be applicable in theory the sub sampling of sediment sample various uses, improve plant factor, economic benefit and social benefit are remarkable.
Brief description of the drawings
Fig. 1 is the repeatedly schematic diagram of pressurize transfer equipment of abyssal sediment of the present invention;
Fig. 2 is the repeatedly structural representation of the connector of pressurize transfer equipment of abyssal sediment of the present invention;
Fig. 3 is the repeatedly structural representation of the pressurize cylinder of pressurize transfer equipment of abyssal sediment of the present invention;
Fig. 4 is the repeatedly structural representation of the secondary telescoping mechanism of pressurize transfer equipment of abyssal sediment of the present invention;
Fig. 5 is the repeatedly structural representation of the location mechanism of pressurize transfer equipment of abyssal sediment of the present invention;
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-the second ball valve;
100-sampling passage, 101-sight glass, 102-sample passage;
Connecting cylinder, 301-the first O-ring seal, 302-pressurize cylinder main body, 303-the 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-the 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
Referring to 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, all have screw to be connected between cue ball valve 2 and pressurize cylinder 3, and adopt O-ring seal to carry out pressurize sealing.
In connector 1, offer the sampling path 10 0 and the sample output passage 102 that are interconnected, for three-port structure, sampling path 10 0 extends along straight line, sample output passage 102 vertical connections are at the middle part of sampling path 10 0, wherein, a sampling path 10 0 dorsad side of cue ball valve 2 is communicated with raw sample sampler, and the outlet of sample output passage 102 is communicated with by the second ball valve 11, transitional cylinder 10 and subsample storage warehouse successively; Connector 1 is just provided with sight glass 101 to the sidewall of 102 mouthfuls of sample output passages.
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 of arranging vertically in pressurize cylinder main body 302; Between front connecting cylinder 300, pressurize cylinder main body 302 and gland bonnet 304, successively with being threaded, and junction seals by O-ring seal.Pressurize cylinder 3 is provided with pressure release parts.
In pressurize cylinder 3, be fixed with sounding rod 503, sounding rod 503 is connected with the electronics storehouse 504 being fixed on gland bonnet 304 towards a side of 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 rear sleeve 409 contiguous rear motors 406 is provided with the shaft collar 404 turning up, and this shaft collar 404 is provided with the first pilot hole 408 being 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 being slidably matched along gathering sill 401.
Between pressurize cylinder 3 and sleeve, be provided with the location cylinder 500 being slidably matched with guide pole 305, one end of location cylinder 500 contiguous rear motors 406 is provided with flanging 501, and this flanging 501 is provided with the second pilot hole being set on guide pole 305; Between location cylinder 500 and sleeve, be provided with spring, this spring housing is located on guide pole 305, and both ends of the spring is butt shaft collar 404 and flanging 501 respectively; On location cylinder 500, be also provided with magnet ring 502, for coordinate 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 have formed location mechanism 5 jointly.
Rear motor 406 is fixed on pressurize cylinder 3 one end of connector 1 dorsad.
Rear screw-nut body 405 comprises the back nut that runs through the rear leading screw of gland bonnet 304 and fix 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.
The front nut that front screw-nut body 402 comprises front leading screw and fixes 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, piston 412 with the end axis of front leading screw to being fixedly connected with.
In control box 6, there are the parts such as PLC, button, display screen, 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 pressurize cylinder 3 and accumulator 7, 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) by the sampling path 10 0 of connector 1 dorsad a side of cue ball valve 2 be 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 is communicated with pressurize cylinder 3, opens cue ball valve 2, to the interior pressurization of pressurize cylinder 3, until pressurize cylinder 3 internal pressures are slightly larger than the force value in raw sample sampler, stop pressurization; Open the 3rd ball valve, hydraulic pump is communicated with transitional cylinder 10, in subsample storage silo, pressurize, until subsample storage silo is suitable with pressurize cylinder 3 internal pressures, 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 connector 1 direction motion, and in the time that 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 motions drive sampler barrel 400 to move and stop at sampling working position to connector 1 direction and collect subsample;
4) treat that subsample collection finishes, rear screw-nut body 405 counter motions, drive sampler barrel 400 move and stop at out sample working position to connector 1 in the other direction, now, sampler barrel 400 front ends arrive directly over sample output passage 102, can just be seen by sight glass 101; Front screw-nut body 402 counter motions, the piston 412 in sampler barrel 400 is released subsample, 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, completes a second son acquisition operations.
6) reinstall new subsample storage silo for 102 times at the sample output passage of connector 1, open the 3rd ball valve, hydraulic pump is communicated with transitional cylinder 10, in subsample storage silo, pressurize, until subsample storage silo is suitable with pressurize cylinder 3 internal pressures, open the second ball valve 11 and the first ball valve, repeat flow process 3)～5), can realize repeatedly sampling.
Claims (10)
1. a repeatedly pressurize transfer equipment of abyssal sediment, comprises pressurize cylinder and sampling apparatus,
It is characterized in that, be also provided with connector and cue ball valve, offer the sampling passage and the sample output passage that are interconnected in described connector, described pressurize cylinder docks with sampling passage by cue ball valve;
Described sampling apparatus comprises:
Be positioned at the sampler barrel of pressurize cylinder, this sampler barrel has to extend the sampling working position of sampling passage and be in through cue ball valve and goes out sample working position in connector;
For driving the multi-stage expansion mechanism of sampler barrel;
Be positioned at the piston of sampler barrel, enter sample output passage for sample being pushed away to sampler barrel at sampler barrel in the time going out sample working position.
2. repeatedly pressurize transfer equipment of abyssal sediment according to claim 1, is characterized in that, is also provided with accumulator, and accumulator is connected with pressurize cylinder, connector lower end and hydraulic pump respectively by two three-way cut-off valves.
3. repeatedly pressurize transfer equipment of abyssal sediment according to claim 1, is characterized in that, described connector is three-port structure, and described sampling passage extends along straight line, 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. repeatedly pressurize transfer equipment of abyssal sediment according to claim 1, is characterized in that, described multi-stage expansion mechanism comprises:
Rear motor, is fixed on pressurize cylinder one end of 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.
5. repeatedly pressurize transfer equipment of abyssal sediment according to claim 4, it is characterized in that, in described pressurize cylinder, be provided with the guide pole of arranging vertically, between described pressurize cylinder and sleeve, be provided with the location cylinder being slidably matched with guide pole, between location cylinder and sleeve, be provided with axial linkage part, in described pressurize cylinder, be fixed with sounding rod, described location cylinder is provided with the magnet ring matching with sounding rod.
6. repeatedly pressurize transfer equipment of abyssal sediment according to claim 5, is characterized in that, one end of the contiguous rear motor of described sleeve is provided with the shaft collar turning up, and this shaft collar is provided with the first pilot hole being set on guide pole;
One end of the contiguous rear motor of location cylinder is provided with flanging, and this flanging is provided with the second pilot hole being set on guide pole;
Described linkage part is the spring being set on guide pole, the shaft collar on this both ends of the spring difference butt sleeve and the flanging of location cylinder.
7. repeatedly pressurize transfer equipment of abyssal sediment according to claim 4, is characterized in that, described pressurize cylinder is provided with gland bonnet towards one end of rear motor.
8. repeatedly pressurize transfer equipment of abyssal sediment according to claim 4, it is characterized in that, described rear screw-nut body comprises the back nut that runs through the rear leading screw of gland bonnet and fix 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.
9. repeatedly pressurize transfer equipment of abyssal sediment according to claim 4, is characterized in that, the front nut that described front screw-nut body comprises front leading screw and fixes 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;
Described piston with the end axis of front leading screw to being fixedly connected with.
10. repeatedly pressurize transfer equipment of abyssal sediment according to claim 4, is characterized in that, described sleeve is provided with axial arranged gathering sill, and described sampler barrel is provided with the guide pin being 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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| CN103913346B CN103913346B (en) | 2016-03-23 |
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| CN104109627A (en) * | 2014-07-14 | 2014-10-22 | 上海交通大学 | Portable high pressure microorganism transferring and culturing device |
| CN104215483A (en) * | 2014-08-25 | 2014-12-17 | 浙江大学 | Deep-sea sediment pressure-maintaining sampling and transferring device and application method thereof |
| CN104564855A (en) * | 2015-01-19 | 2015-04-29 | 浙江大学 | Double-hydraulic-cylinder pressure regulating and maintaining system for pressure maintaining transfer and control method thereof |
| CN105954529A (en) * | 2016-05-27 | 2016-09-21 | 浙江大学 | Pressure-maintaining transfer and culture device for deep sea water sample |
| CN106546444A (en) * | 2016-09-23 | 2017-03-29 | 浙江大学 | It is a kind of can be with the secondary pressurize deposit sampler of self-balancing |
| CN107132186A (en) * | 2017-06-28 | 2017-09-05 | 成都理工大学 | Bottom sediment inserting tube and detection method |
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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 |
| CN104109627A (en) * | 2014-07-14 | 2014-10-22 | 上海交通大学 | Portable high pressure microorganism transferring and culturing device |
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| 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 |
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