CN2748902Y - Fidelity and sampling integrated deep-sea sediment sampler - Google Patents

Fidelity and sampling integrated deep-sea sediment sampler Download PDF

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Publication number
CN2748902Y
CN2748902Y CN 200420110786 CN200420110786U CN2748902Y CN 2748902 Y CN2748902 Y CN 2748902Y CN 200420110786 CN200420110786 CN 200420110786 CN 200420110786 U CN200420110786 U CN 200420110786U CN 2748902 Y CN2748902 Y CN 2748902Y
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China
Prior art keywords
fidelity
sampling
cylindrical shell
pressurized capsule
lining
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Expired - Lifetime
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CN 200420110786
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Chinese (zh)
Inventor
李世伦
顾临怡
叶瑛
邱敏秀
程毅
陈鹰
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Zhejiang University ZJU
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Zhejiang University ZJU
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Priority to CN 200420110786 priority Critical patent/CN2748902Y/en
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Abstract

The utility model discloses a fidelity and sampling integrated deep-sea sediment sampler, comprising a gravity piston type sampling mechanism comprising a weight dropper mechanism, a launch mechanism, a fidelity sampling cylinder, an accumulator, and a bolt mechanism, and a sealed compartment comprising a sealed compartment body, a flap valve, a lower end cover, a lower pressing cover, and an inverted cone. The sampling cylinder and a pressure maintaining cylinder are combined together to form the fidelity sampling cylinder; the upper and the lower ends of the fidelity sampling cylinder are also used as sealing positions, accordingly, the structure is very compact, the requirement for launching is greatly reduced, and the intensities for compression resistance, bending resistance, etc. are obviously improved; the device can get the samples of the sediment, the water, the gas, or the gas hydrate, etc. under the sea and can conduct the thermal insulation processing and the pressure maintaining processing, and the original composition and state of the sample can be kept; a geological winch on a ship is used for delivering, sampling, and recovering, and a thermal insulated and pressure maintained sample can be obtained without other power sources; and by using the interface of the pressure relief valve and the gas separation device, the dissolved gas in the sample is separated, and the subsequent processing is conducted.

Description

Fidelity sampling integrated deep sea sediment sampler
Technical field
The utility model relates to and is used for earth drilling or drilling well so that obtain the equipment of table soil or well liquor sample, especially relates to a kind of fidelity sampling integrated deep sea sediment sampler.
Background technology
The exploration of gas hydrate is global problem with exploitation, has entered commercial mining phase abroad, but China is just at the early-stage, still is in the exploration initial stage.Utilize deposit sampler to obtain marine bottom sediment, by subsequent treatment and analysis, whether seabed below have gas hydrate exist, even can directly get gas hydrate if can judge, have great importance.In order to keep original composition of sample and state, require sampler to have the heat-insulation pressure keeping function, i.e. the fidelity function.Correspondingly very high requirement has been proposed for the intensity of sampler, sealing, structure etc.
Summary of the invention
The purpose of this utility model is to provide a kind of fidelity sampling integrated deep sea sediment sampler, and both function is integrated on the cylindrical shell, solves the requirement of sampling and fidelity, especially requires bigger operating mode very suitable to sampling depth.
The technical scheme that its technical matters that solves the utility model adopts is to comprise two parts of gravity piston type sampling mechanism and pressurized capsule:
1) gravity piston type sampling mechanism: comprise weight mechanism, hang mechanism, fidelity sampling tube, accumulator and spring bolt mechanism; Wherein:
Weight mechanism: comprise weight, weight cable, lever, clamping plate; One end of lever connects a jaws which come into abutting of weight, lever through the weight cable;
Hang mechanism: comprise discharging cable, guiding device, piston; The guiding device upper end hangs on the lever by discharging cable, and the guiding device lower end is screwed in pressurized capsule body upper end, and the upper end of piston is connected with jackstay, and the O-ring seal sealing is housed between piston and the lining;
Fidelity sampling tube: comprise fidelity cylindrical shell, petal, lining; Petal is placed on the step of fidelity cylindrical shell lower end cutter head; Lining is close to the fidelity cylinder inboard wall, and the outstanding step in fidelity cylindrical shell upper end is withstood in the lining upper end, and the lining lower end is pushed down on the petal step surface;
Spring bolt mechanism: be screwed in pressurized capsule body upper end hole;
Accumulator: use anchor ear and following anchor ear and be fixed in the guiding device;
2) pressurized capsule: comprise pressurized capsule body, flap valve, bottom end cover, lower cover, back taper; Flap valve fixes on the bottom end cover with hinges fixing, be erected at a side of pressurized capsule inner body wall, blocked by the fidelity cylinder body outer wall, bottom end cover is placed on the pressurized capsule body support ring, bottom end cover and lower cover screw pretension, and back taper is buckled on the lower cover, lower cover, back taper the two by screw retention in pressurized capsule body lower end, one latch is housed on the lower cover, and latch inserts in the skewed slot in fidelity cylindrical shell stage casing, prevents the downward landing of fidelity cylindrical shell.
The useful effect that the utlity model has is: it is that sampler barrel is integrated into the fidelity sampling tube with the pressurize tube, and two ends double as sealing position about the fidelity sampling tube, make its structure very compact, hanging requirement reduces greatly, and the resistance to compression of cylindrical shell, the bending resistance equal strength obviously improves, this device can be got S ﹠ W in the seabed, sample such as gas or gas hydrate also carries out heat-insulation pressure keeping and handles, keep original composition of sample and state, utilize geological winch input on the ship, sampling and recovery, do not need other power source can obtain one and guarantee warm pressurize sample, and by pressure relieving valve device interface separated from the gas, the dissolved gas in the sample separation and carry out subsequent treatment.Require bigger application scenario to be particularly suitable for for sampling depth.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation (not containing weight mechanism) after the sampling;
Fig. 3 is a fidelity sampling barrel structure synoptic diagram of the present utility model;
Fig. 4 is a sampler when transferring, the spring bolt mechanism structural representation;
When Fig. 5 is the sampler recovery, the spring bolt mechanism structural representation;
Fig. 6 is a pressurized capsule structural representation of the present utility model.
Among the figure: 1, weight, 2, the weight cable, 3, lever, 4, clamping plate, 5, jackstay, 6, discharge cable, 7, go up anchor ear, 8, accumulator, 9, guiding device, 10, anchor ear down, 11, spring bolt mechanism, 12, the pressurized capsule body, 13, flap valve, 14, bottom end cover, 15, lower cover, 16, back taper, 17, the fidelity cylindrical shell, 18, piston, 19, petal, 20, lining, 21, O-ring seal, 22, the O RunddichtringO, 23, O RunddichtringO, 24, the O RunddichtringO, 25, support ring, 26, latch.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, be system architecture synoptic diagram of the present utility model.It comprises following two parts:
The gravity piston type sampling mechanism: this part comprises weight mechanism (containing weight 1, weight cable 2, lever 3, clamping plate 4 etc.), hangs mechanism that accessories such as (contain and discharge cable 6, guiding device 9, piston 18 etc.), fidelity sampling tube (containing fidelity cylindrical shell 17, petal 19, lining 20 etc.), accumulator 8 and spring bolt mechanism 11 form.Weight mechanism is made up of weight 1, weight cable 2, lever 3, clamping plate 4 four parts, and weight 1 usefulness lifting screw hangs on the weight cable 2, and the 2 usefulness shackles of weight cable hang on the lever 3, and lever 3 is fixed on the jackstay 5 by clamping plate 4.Hanging mechanism is made up of release cable 6, guiding device 9, piston 18, guiding device 9 upper ends hang on the lever 3 by discharging cable 6, the lower end is screwed on pressurized capsule body 12, piston 18 upper ends are connected with jackstay 5, O-ring seal 21 sealings are arranged between piston 18 and the lining 20, the sampling anteposition is positioned at lining 20 and enter the last seal of fidelity cylindrical shell 17 topmost in lining 20 bottom after the sampling.Fidelity sampling tube (as shown in Figure 3) is made up of fidelity cylindrical shell 17, petal 19, lining 20 3 parts, petal 19 is placed on the step of fidelity cylindrical shell 17 lower end cutter heads, lining 20 is close to fidelity cylindrical shell 17 inwalls, and the outstanding step in fidelity cylindrical shell 17 upper ends is withstood in the upper end, and petal 19 is pushed down in the lower end, petal 19 elasticity are better, when sampling, sediment can enter lining 20 by petal 19 smoothly, and sampling finishes, petal 19 can cut off sediment, and lining 20 plays insulation effect.Spring bolt mechanism 11 (as Fig. 4, shown in Figure 5) is screwed on pressurized capsule body 12, and outstanding spring latch can block fidelity cylindrical shell 17 when sampling, prevent to move on the fidelity sampling tube 17; After the sampling, can back down by the upper end conical surface of piston 18 again, fidelity cylindrical shell 17 is pulled through dead bolt smoothly.Accumulator 8 is fixed on the guiding device 9 by last anchor ear 7 and following anchor ear 10, is connected the pressure loss of compensation sampler with pressurized capsule body 12 by pipeline.
Pressurized capsule (as shown in Figure 6) is made up of pressurized capsule body 12, flap valve 13, bottom end cover 14, lower cover 15, back taper 16 5 parts.Flap valve 13 usefulness hinges fixing fix on the bottom end cover 14, are erected at a side of pressurized capsule body 12 inwalls, are blocked by fidelity cylindrical shell 17 outer walls; Bottom end cover 14 does not allow it move down by being placed on pressurized capsule body 12 upper support rings 25, bottom end cover 14 and lower cover 15 screw pretensions, back taper 16 is buckled on the lower cover 15, lower cover 15, back taper 16 the two by screw retention on pressurized capsule body 12.One latch 26 is housed on the lower cover 15, and latch 26 inserts the skewed slot in fidelity cylindrical shell 17 stage casings, prevents the 17 downward landings (but allowing to move up) of fidelity cylindrical shell.
Several gordian techniquies of fidelity sampling:
1. seal sealing (as shown in Figure 3) on the fidelity sampling tube: the axial seal of zero draft; Small cylinder conduct with piston 18 tops is sealed, and under the pulling force effect of jackstay 5, fills in fidelity cylindrical shell 17 upper end center pits, finishes sealing by the distortion of O RunddichtringO 22.
2. pressurized capsule sealing (as shown in Figure 6): sampling finishes, fidelity cylindrical shell 17 is fully by flap valve 13, flap valve 13 is filled in the center pit of bottom end cover 14 owing to lose the support of fidelity cylindrical shell 17 under the effect of pretightning force, finish 15 ° of tapering sealings by the distortion of O RunddichtringO 24; Simultaneously, the conical surface of fidelity cylindrical shell 17 lower end drill bits is filled in the pressurized capsule body 12 upper port conical surfaces, and this conical surface bears the weight of pressurized capsule as supporting surface, pressurized capsule body 12 upper end center pits are also filled on the drill bit face of cylinder, finish sealing by the distortion of O RunddichtringO 23.
3. pressure compensating method: accumulator 8 and pressurized capsule body 12 are connected by pipeline, compensate by the pressure loss in 8 pairs of whole sampler of accumulator.
4. heat preserving method: by fidelity cylindrical shell 17, pressurized capsule body 12 surfaces externally and internallies being coated with 20 pairs of sediments insulations of adiabator layer and lining.
The course of work of the present utility model is as follows:
(1) after weight 1 arrives the seabed, touch on the lever 3 and lift, make and discharge cable 6 and lever 3 dropouts, the sampler free-falling, fidelity cylindrical shell 17 freely inserts in the sediment under the effect of whole sampler gravity, piston 18 then after near the seabed under the effect of jackstay 5 only the cable releasing speed with winch descend, rise with respect to the fidelity cylindrical shell 17 of free-falling.Owing between piston 18 and the fidelity sampling tube better seal is arranged, thereby below piston, can form parital vacuum, sample is more successfully entered in the lining 20, and the friction force of compensation lining 20 inwalls.
(2) in whole dropping process, because fidelity cylindrical shell 17 is blocked by spring bolt mechanism 11, pressurized capsule is positioned at the top of fidelity cylindrical shell 17 always, relies on gravity that slotting power is provided down with fidelity cylindrical shell 17; When sampler reclaims, piston 18 arrives fidelity cylindrical shell 17 upper port and backs down spring bolt mechanism 11, and live fidelity cylindrical shell 17 upper port by the deformable seal of O RunddichtringO 22, then drive the fidelity sampling tube and pass pressurized capsule from bottom to top, making fidelity cylindrical shell 17 cutter heads arrive pressurized capsule body 12 upper end seals seals, and make flap valve 13 close pressurized capsule body 12 lower seal mouths, realize pressure holding function.Be contained in the guiding device 9 of sampler the top as the accumulator 8 of pressure compensator, link to each other with pipeline, replenish the damaged of whole pressurize chamber volume, guarantee that sample strain is unlikely to descend too many with the cavity volume of pressurized capsule body 12.
(3) when winch is received wirerope, at first, whole fidelity sampling tube is upwards mentioned by jackstay 5 traction pistons 18.The petal 19 of fidelity sampling tube 17 lower ends closes up to be broken sediment sample from the bottom, sample is separated with sediment, and whole fidelity sampling tube is raised together and passes pressurized capsule from bottom to top, and two are sealed about sealing up, and have realized sedimental fidelity sampling.

Claims (1)

1. fidelity sampling integrated deep sea sediment sampler is characterized in that comprising two parts of gravity piston type sampling mechanism and pressurized capsule:
1) gravity piston type sampling mechanism: comprise weight mechanism, hang mechanism, fidelity sampling tube, accumulator (8) and spring bolt mechanism (11); Wherein:
Weight mechanism: comprise weight (1), weight cable (2), lever (3), clamping plate (4); One end of lever (3) connects a jaws which come into abutting (4) of weight (1), lever (3) through weight cable (2);
Hang mechanism: comprise discharging cable (6), guiding device (9), piston (18); Guiding device (9) upper end hangs on the lever (3) by discharging cable (6), guiding device (9) lower end is screwed in pressurized capsule body (12) upper end, the upper end of piston (18) is connected with jackstay (5), and O-ring seal (21) sealing is housed between piston (18) and the lining (20);
Fidelity sampling tube: comprise fidelity cylindrical shell (17), petal (19), lining (20); Petal (19) is placed on the step of fidelity cylindrical shell (17) lower end cutter head; Lining (20) is close to fidelity cylindrical shell (17) inwall, and the outstanding step in fidelity cylindrical shell (17) upper end is withstood in lining (20) upper end, and lining (20) lower end is pushed down on petal (19) step surface;
Spring bolt mechanism (11): be screwed in pressurized capsule body (12) upper end hole;
Accumulator (8): use anchor ear (7) and following anchor ear (10) and be fixed in the guiding device (9);
2) pressurized capsule: comprise pressurized capsule body (12), flap valve (13), bottom end cover (14), lower cover (15), back taper (16); Flap valve (13) fixes on the bottom end cover (14) with hinges fixing, be erected at a side of pressurized capsule body (12) inwall, (17 outer walls block by the fidelity cylindrical shell, bottom end cover (14) is placed on pressurized capsule body (12) support ring (25), bottom end cover (14) and lower cover (15) screw pretension, back taper (16) is buckled on the lower cover (15), lower cover (15), back taper (16) the two by screw retention in pressurized capsule body (12) lower end, one latch (26) is housed on the lower cover (15), and latch (26) inserts in the skewed slot in fidelity cylindrical shell (17) stage casing.
CN 200420110786 2004-12-01 2004-12-01 Fidelity and sampling integrated deep-sea sediment sampler Expired - Lifetime CN2748902Y (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101539018B (en) * 2009-04-10 2012-05-30 浙江超达阀门股份有限公司 Deep seafloor sampling device
CN103448891A (en) * 2013-08-12 2013-12-18 湖南科技大学 Cable clamping releasing device
CN104390807A (en) * 2014-11-14 2015-03-04 重庆大学 Automatic sealing rotating stabilized deep sediment sampler
CN104634604A (en) * 2015-03-04 2015-05-20 中国科学院南京地理与湖泊研究所 Deep-water sediment collector
CN105974477A (en) * 2016-07-11 2016-09-28 山东省科学院海洋仪器仪表研究所 Vessel-mounted deep sea natural gas hydrate detection sampling apparatus and method
CN107991133A (en) * 2017-12-22 2018-05-04 中国科学院海洋研究所 A kind of energy storage type fidelity sampling steel cylinder and its sampling method based on ROV
WO2020258535A1 (en) * 2019-06-24 2020-12-30 杨胜杰 Multilayer fidelity-maintaining storage sampling apparatus for submarine sediment

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101539018B (en) * 2009-04-10 2012-05-30 浙江超达阀门股份有限公司 Deep seafloor sampling device
CN103448891A (en) * 2013-08-12 2013-12-18 湖南科技大学 Cable clamping releasing device
CN103448891B (en) * 2013-08-12 2015-10-21 湖南科技大学 A kind of folder cable release gear
CN104390807A (en) * 2014-11-14 2015-03-04 重庆大学 Automatic sealing rotating stabilized deep sediment sampler
CN104634604A (en) * 2015-03-04 2015-05-20 中国科学院南京地理与湖泊研究所 Deep-water sediment collector
CN105974477A (en) * 2016-07-11 2016-09-28 山东省科学院海洋仪器仪表研究所 Vessel-mounted deep sea natural gas hydrate detection sampling apparatus and method
CN107991133A (en) * 2017-12-22 2018-05-04 中国科学院海洋研究所 A kind of energy storage type fidelity sampling steel cylinder and its sampling method based on ROV
WO2020258535A1 (en) * 2019-06-24 2020-12-30 杨胜杰 Multilayer fidelity-maintaining storage sampling apparatus for submarine sediment

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AV01 Patent right actively abandoned

Effective date of abandoning: 20041201

C25 Abandonment of patent right or utility model to avoid double patenting