CN107907369B - A kind of deep-sea pressure maintaining organic matter sampler - Google Patents
A kind of deep-sea pressure maintaining organic matter sampler Download PDFInfo
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- CN107907369B CN107907369B CN201710984626.4A CN201710984626A CN107907369B CN 107907369 B CN107907369 B CN 107907369B CN 201710984626 A CN201710984626 A CN 201710984626A CN 107907369 B CN107907369 B CN 107907369B
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- sampler
- valve
- organic matter
- deep
- diaphragm seat
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
Abstract
The present invention discloses a kind of deep-sea pressure maintaining organic matter sampler, including is fixed on sequentially connected control device, sampler and pressurizer on bracket；The control device includes metal shut-off valve and driver, the metal shut-off valve includes valve body, spool and valve rod, the driver includes motor, valve rod one end is arranged towards spool, the other end passes through diaphragm seat and offsets with flexible sheet, and flexible sheet and diaphragm seat are tightly connected, and diaphragm seat is fixed on valve body by diaphragm seat briquetting, the output shaft of motor is connected with straight-bar, and straight-bar passes through diaphragm seat briquetting and offsets with flexible sheet.Pollution of the organic matter to sample can not only be excluded completely using the present invention, moreover it is possible to so that sampler is born higher temperature and pressure, be not easy to be corroded, and keep sampling sampler easy to maintain and cleaning.
Description
Technical field
The present invention relates to a kind of deep-sea pressure keeping samplers, more particularly to a kind of depth for excluding sampler organic contamination itself
Extra large pressure maintaining organic matter sampler.
Background technique
In current marine resources detection operations, carry out, conventional method increasingly deep to the research of deep-sea hydrothermal both at home and abroad
It is all sampler dive to be carried by bathyscaph to designated position, then the sampling of hydrothermal solution mouth is reached by mechanical arm crawl sampler, together
When acquire hydrothermal solution temperature information, take and return to sea with bathyscaph after sample.At present both at home and abroad used by sampler very
Solve the problems, such as sample strain maintenance and air-tightness problem well, but existing organic matter sampler cannot exclude to sample completely
Pollution of the device to sample composition itself, the collected hydrothermal solution sample composition of institute can also change therewith with state, cannot be section
The information in situ of scholar's offer hydrothermal solution.
There are commonly IGT samplers for deep-sea organic matter sampling at present, this is a kind of airtight sampler.The sampler is main
Include following components: air cavity, throttling connector, sample cavity, sample chamber piston, sampling valve, probe tube, fills air cavity piston
Actuating motor, elastic diaphragm, pre- charge valve, the handle etc. of oil.Before sampler is laid, need to sample chamber piston left side and air cavity
Seabed water is filled in space on the right side of piston, from pre- charge valve to air cavity piston on the left of space in be filled with the nitrogen of certain pressure
Gas makes two pistons be in the right end of respective cavity.When into deep earth sampling, motor control sampling valve is opened, hydrothermal solution sample
Enter from probe tube, flow in the space of sample chamber piston right end, motor control sampling valve is closed at the end of sampling, and handle is used for
Manipulator crawl.But the polytetrafluoroethylene (PTFE) O-ring in the sampler sample chamber piston, sealing element is polytetrafluoro in sampling valve
Ethylene ring cannot all exclude organic matter completely and pollute to sample, and be easy to be in high temperature corrosion, and material property stability needs to be mentioned
Height, the cleaning process before sampling are complicated.
The Chinese patent literature of Publication No. CN202545835U discloses a kind of metal diaphragm shut-off valve, including valve body,
Valve deck and screw rod；It is provided with valve seat in valve body, spool is set on valve seat, one end of screw rod is arranged towards spool, and screw rod is another
End is connect after being pierced by valve deck with rotating mechanism, and screw rod is connect with valve deck screw-internal thread fit, and one end and the valve body screw thread of valve deck are matched
Connection is closed, and the other end of valve deck is then connect with screw rod packing seal, it is characterised in that: the valve seat is the conical surface with spool bottom
Sealing cooperation；And metallic elastic diaphragm is arranged in valve deck and valve body junction, spool and screw rod are divided into the metallic elastic diaphragm two
Side.The metal diaphragm shut-off valve can bear higher temperature and pressure, but there is a problem of replacement diaphragm inconvenience, and
Under deep-sea higher temperature and pressure, sealing performance not can guarantee.
Summary of the invention
The present invention provides a kind of deep-sea pressure maintaining organic matter sampler, can not only exclude pollution of the organic matter to sample completely,
Sampler can also be enable to bear higher temperature and pressure, be not easy to be corroded, and keep sampler easy to maintain and clean.
A kind of deep-sea pressure maintaining organic matter sampler, including it is fixed on sequentially connected control device, sampler on bracket
And pressurizer；
The control device includes metal shut-off valve and driver, and the metal shut-off valve includes valve body, spool and valve rod,
The driver includes motor,
Valve rod one end is arranged towards spool, and the other end passes through diaphragm seat and offsets with flexible sheet, flexible sheet and diaphragm seat
It is tightly connected, diaphragm seat is fixed on valve body by diaphragm seat briquetting, and the output shaft of motor is connected with straight-bar, and straight-bar passes through diaphragm seat
Briquetting offsets with flexible sheet.
Sampler includes sampler barrel drive end bearing bracket, sampler barrel, sampling bag and sampler barrel rear end cap, is set on sampler barrel drive end bearing bracket
A wedge block is set, sampling bag one end and lozenges are tightly connected, and injection port passes through wedge block and is connected to sampling bag, and sampling bag is another
One end and metal drops block are tightly connected, and sampler barrel drive end bearing bracket is provided with discharge outlet, are arranged nut and plug in discharge outlet, before sampler barrel
End cap, sampler barrel rear end cap and sampler barrel are connected through a screw thread respectively.
The pressure spring being set on valve rod in the metal shut-off valve is made of titanium alloy, uses titanium alloy pressure spring as recovery
Part, not only anticorrosion, but also do not generate pollution to sample.
The diaphragm seat is being equipped with a frustum close to valve body side, and the conical surface is close to sealing with the inside edge of valve body.Elasticity
Diaphragm and diaphragm seat pass through welded seal.Diaphragm seat briquetting one end is connect by screw thread with valve body, and the other end passes through pin and spiral shell
Line is connect with the driver connection seat on driver.
The sampling bag is titanium foil sampling bag, and sampler barrel is titanium alloy sampler barrel.Sampling bag and wedge block, metal drops block point
It Tong Guo not be welded and fixed.By being used cooperatively with discharge outlet, titanium foil sampling bag can be made to bear higher pressure and temperature, be not easy by
Corrosion.
For the pollution for excluding organic matter, connected between control device, sampler and pressurizer by metal titanium tube.
The sampler structure that the present invention uses, enables sampling bag to bear higher temperature and pressure, is less susceptible to be corroded,
And pollution is not generated to sample；The conical surface of diaphragm seat is close to sealing, diaphragm and diaphragm seat welded seal with the inside edge of valve body, no
It so that metal shut-off valve is realized the work under very high pressure, and can be convenient replacement diaphragm and diaphragm seat；Before sampler barrel
End cap is threadedly coupled with sampler barrel, and diaphragm seat briquetting and driver connection seat are by pin and threaded connection, so that clear before sampling
Clean simpler, cleaning effect is more thorough.
Detailed description of the invention
Fig. 1 is deep-sea pressure keeping sampler structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of control device；
Fig. 3 is the structural schematic diagram of motor control assembly；
Fig. 4 is the structural schematic diagram of sampler；
Fig. 5 is the structural schematic diagram of pressurizer.
Specific embodiment
As shown in Figure 1, pressure maintaining organic matter sampler of the invention include control device 1, sampler 2, pressurizer 3,
Handle 4, probe tube 5, hydrothermal solution temp probe 6, ICL coil 7, control device 1, sampler 2, pressurizer 3 are consolidated by fixed plate
It is fixed integral, the handle 4 of manipulator aid is installed in fixed plate.
Control device 1: as shown in Figures 2 and 3, control device 1 includes metal shut-off valve and driver.Metal shut-off valve packet
Include valve body 8, spool 14 and valve rod 12；Driver includes motor 45.
The sample tap 9 and outlet 10 perpendicular to valve axis are provided on valve body 8, sample tap 9 passes through screw thread and probe tube 5
Connection, outlet 10 are connected to by screw thread and titanium tube with sampler 2.4 are provided on 8 outer surface of valve body, one circumference to hang down with axis
The first straight blind hole 11 cooperates in the outer surface of valve rod 12 and valve body 8 along the first circular hole 13 of axis for fastening, before valve rod 12
Spool 14 is inlayed at end, and spool 14 and the second circular hole 15 in valve body 8 along axis are coaxial.Valve rod 12 passes through titanium alloy pressure spring 16, titanium
16 one end of alloy pressure spring and 8 inner hole plane contact of valve body, the other end are contacted with annular shoulder block 17, annular shoulder block 17 by screw thread and
Valve rod 12 is relatively fixed, and 12 tail end of valve rod passes through a face contact of diaphragm seat 18 and flexible sheet 19.Diaphragm seat 18 has a cone
Platform protrusion, the conical surface are close to realize sealing with the edge line of third circular hole 20, and straight pin 21 limits the rotary motion of diaphragm seat 18, film
Sealing is realized in bar 18 and the welding of flexible sheet 19.Diaphragm seat briquetting 22 is connect by screw thread with valve body 8, the annular projection of one end
Diaphragm seat is compressed, locking round nut 23 is spun on 22 external screw thread of diaphragm seat briquetting, on 22 outer surface of diaphragm seat briquetting, one circumference
Open four the second blind holes 24.25 one end of driver connection seat is connect by screw thread with diaphragm seat briquetting 22, and the other end passes through screw thread
It is connect with driver cavities 34, it is locking that pin 26 passes through driver connection seat 25, diaphragm seat briquetting 22.
Driver connection seat 25 is perpendicular to opening four third blind holes 27 on a circumference of axis, on the inner hole on axis
There are two O-ring slot, there are the first O-ring 28, the second O-ring 29 in slot, outer surface is provided with an O-ring slot, places the 3rd O shape
Circle 33.Straight-bar 30 passes through driver connection seat 25, diaphragm seat briquetting 22, the first O-ring 28, the second O-ring 29, one end and elasticity
Diaphragm 19 contacts, and the other end can be contacted with push rod 31.The ceramic embedded ball in 31 front end of push rod, the external screw thread on bar couple chamber with nut
32 internal screw thread constitutes worm drive pair, and nut connection 32 one end of chamber is connect by external screw thread with driver connection seat 25, another
End connect by the first holding screw 36, the second holding screw 37 with bearing block 38, opened in cavity wall there are four the 4th circular hole 35, it is intracavitary
Lantern ring 39 be fixed on push rod 31 by third holding screw 40, the 4th holding screw 41.42 middle section of shaft coupling and zanjon
The cooperation of 43 inner ring of ball bearing, one end are the stocks in double faces D, are protruded into the flat slot of push rod 31, the other end is by the 5th holding screw
44 fix with the shaft of motor 45,
Motor 45 is fixed on motor cabinet 46 by three motor cabinet screws 47 being evenly distributed on a circumference, motor cabinet 46
There are four equally distributed threaded holes on outer ring, fixed by four bearing block screws 48 and bearing block 38.
One transverse plane of motor control assembly 49 is provided with the 4th O-ring 50, which holds level with both hands with the one of driver cavities 34
It is fixed by four circuit chamber screws 51 being uniformly distributed on same circumference after face is close to, the other end of motor control assembly 49
It is fixed with four circuit chamber head bolts 53 and circuit chamber end cap 52, equipped with the first underwater electrical connector 55, the on circuit chamber end cap
Two underwater electrical connectors 56, the first underwater electrical connector 55 are connected with ICL coil 7, the second underwater electrical connector 56 and hydrothermal solution temp probe 6
It is connected.Cavity is provided with battery 57 and control panel 58.
The action description of moving part: when push rod 31 rests in 45 one end of motor, straight-bar 30 is not pressurized, carbon alloy pressure spring 16
In compressive state, elastic restoring force pushes annular shoulder block 17 to be against on the end face of diaphragm seat 18, and annular shoulder block 17 drives valve
Bar 12 separates the spool 14 of 12 front end of valve rod with 15 edge of the second circular hole, and valve is opened.The motor shaft of motor 45 rotates forward, and leads to
Crossing shaft coupling 42 drives push rod 31 to rotate forward, and push rod 31 moves forward under the action of screw pair, pushes after touching straight-bar 30
Its forward, straight-bar 30 push flexible sheet 19 make its deform and further push valve rod 12, at this time titanium alloy pressure spring 16 further
It is compressed, when the spool 14 of 12 front end of valve rod is pressed on the edge of the second circular hole 15, valve is closed.Motor 45 inverts, and pushes away
Bar 31 is withdrawn, and valve is again turned on.
Sampler 2: as shown in figure 4, sampler barrel drive end bearing bracket 59 is connect by screw thread with 60 one end of sampler barrel, before sampler barrel
There is the rotary table of protrusion in screw thread one end of end cap 59, and the 5th O-ring 61 is housed on circumference, has a flat wedge block on rotary table,
It is welded with titanium foil sampling bag 62, the metal drops block 63 of the other end of titanium foil sampling bag 62 and a wedge shape welds, sampler barrel drive end bearing bracket
59 perpendicular to injection port 64 and discharge outlet 65 is provided on the direction of axis, injection port 64 is connected to by screw thread and titanium tube with valve body 8,
Nut 66 and plug 67 block discharge outlet 65.60 other end of sampler barrel is connect by internal screw thread with sampler barrel rear end cap 68, is sampled
The outer surface of 68 annular projection of tube rear end lid is equipped with the 6th O-ring 69, and the throttling element 70 in centre bore is against polytetrafluoroethylene ring
On 71, the water outlet 72 perpendicular to axis is provided on the excircle of sampler barrel rear end cap 68, water outlet 72 passes through screw thread and titanium tube
It is connected to pressurizer 3.
Pressurizer 3: as shown in figure 5, End cover for inflator 74 is connect by external screw thread with inflator 73,74 end of thread of End cover for inflator
The outer surface of annular projection is equipped with the 7th O-ring 75, air inlet 87 is provided on End cover for inflator axis, perpendicular to End cover for inflator
Valve seat orifice 82 is provided on the direction of 74 axis, retaining ring 79, packing ring 80, retaining ring 81 are pressed in valve seat orifice 82 by pressure ring 78, pressure ring
78 are threadedly coupled with valve seat orifice 82, and the external screw thread of pressure maintaining valve rod 76 is connect with pressure ring 78, and 76 front end of pressure maintaining valve rod is ceramic embedded
Ball 77.Piston 83 is housed inside inflator 73, the 8th O-ring 84, the 9th O-ring 85 are housed on 83 circumference of piston, in vertical and gas
Water inlet 86 is provided on the direction of 73 axis of cylinder, water inlet 86 is connected to by screw thread and titanium tube with sampler 2.
When it is implemented, sampler right end is placed downward in Fig. 1.The piston of inflator 73 is located at cylinder left end, is full of in cylinder
Seawater, the water level in water level and inflator 73 in sampler barrel 60 maintain an equal level, and the distilled water of 32ml, nut are filled in titanium foil sampling bag 62
66 block discharge outlet 65 with plug 67, and spool 14 is not contacted with the second circular hole 15, i.e. sampling valve opening, by air inlet 87 to gas
Slow inflated with nitrogen in cylinder 73, when there is water to flow out from sample tap 9, pause inflation, closes sampling valve, removes nut 66 and plug 67
Afterwards, continuing inflation reaches the pressure of nitrogen to be sampled the 10% of hydrothermal solution pressure, tightens pressure maintaining valve rod 76, nut 66 and plug 67
Block discharge outlet 65.Then sampler is placed in the sampling basket of bathyscaph, it is deep when bathyscaph, which reaches hydrothermal solution mouth, to be sampled
Manipulator clamping handle 4 on latent device, probe tube 5 and the alignment hydrothermal solution mouth of hydrothermal solution temp probe 6, in motor control assembly 49
Temperature data is passed back real-time display in bathyscaph by ICL coil 7 by control panel 58, when the hydrothermal solution mouth temperature measured reaches sampling
It is required that when, the staff in bathyscaph clicks the sample button in host computer, and signal passes to control panel 58 by ICL coil 7,
Control panel 58 controls motor 45 and opens sampling valve, collected hydrothermal solution sample from the sample tap 9 on the process valve body 8 of probe tube 5 and out
Mouth 10, after the injection port 64 on sampler barrel drive end bearing bracket 59, into titanium foil sampling bag 62, since the pressure inside and outside bag is flat
Weighing apparatus, much larger than the nitrogen pressure in inflator 73, pressure difference pushes lives the seawater pressure between sampler barrel 60 and titanium foil sampling bag 62
Plug 83 moves downward, and nitrogen is compressed, so that pressure increases, samples and stops when pressure balance.The sampling timing of setting terminates
Afterwards, sampling valve is closed.At this point, the piston 83 in inflator 73 is in dynamic equilibrium state, maintain in sampler barrel 60 and inflator 73
Pressure balance.When shifting sample, high pressure liquid chromatography is pumped into connection air inlet 87, and unscrew pressure maintaining valve rod 76, be then turned on sampling
Valve, hydrothermal solution are flowed out from probe tube 5, realize the isobaric transfer of sample.
Since titanium foil sampling bag 62 welds together with wedge block, wedge block links together with sampler barrel 60, and samples
Cylinder 60 is titanium alloy material, can be by inside and outside high pressure, and 62 internal pressure of titanium foil sampling bag and 60 internal pressure of sampler barrel are equal, so
It is also highly pressurised liquid in titanium foil sampling bag 62；Meanwhile having added a drainage hole on welding assembly, by the opening for controlling discharge outlet
With closing, titanium foil sampling bag 62 in the sampler 2 is allowed to fill 45MPa highly pressurised liquid.
Cleaning process before sampling can screw off sampler barrel drive end bearing bracket 59 from sampler barrel 60, by diaphragm seat briquetting 22 from
It is screwed off on driver connection seat 25, they and the components that link together is placed in high temperature furnace calcination for a period of time together,
Remove organic matter therein.
When secondary sample, motor valve opening is not used, but removes pin 26, unscrews driver connection seat 25 and diaphragm seat pressure
Screw thread between block 22, can be by unscrewing the opening and closing degree of extent control valve to can control sample transfer rate.
The pressure maintaining organic matter sampler structure is simple, is sampled using deep sea hydraulic；It need to be by metal sampler using preceding
Valve and 450 DEG C of titanium foil sampling bag heating a period of times are the cleanable surface contacted with sample, simple thorough；In sampler with sample
Organic matter component is not present in the surface of product contact, realizes no pollution；The sampler is able to achieve pressure maintaining and isobaric transfer to sample,
And there is air-tightness；Sampling rate is limited to improve the purity of sample by throttle orifice when sampling, secondary sample rate is adjustable；This hair
The maximum depth selection of bright pressure maintaining organic matter sampler is up to 4500m, and heatproof is up to 450 DEG C or more.
The foregoing is merely the preferred embodiment of the present invention, protection scope of the present invention is not limited in above-mentioned embodiment party
Formula, all technical solutions for belonging to the principle of the invention all belong to the scope of protection of the present invention.For those skilled in the art and
Speech, several improvements and modifications carried out without departing from the principles of the present invention, these improvements and modifications also should be regarded as this
The protection scope of invention.
Claims (7)
1. a kind of deep-sea pressure maintaining organic matter sampler, including be fixed on sequentially connected control device on bracket, sampler and
Pressurizer；
The control device includes metal shut-off valve and driver, and the metal shut-off valve includes valve body, spool and valve rod, described
Driver includes motor, which is characterized in that
Valve rod one end is arranged towards spool, and the other end passes through diaphragm seat and offsets with flexible sheet, and flexible sheet passes through with diaphragm seat
Diaphragm seat is fixed on valve body by welded seal connection, diaphragm seat briquetting, and the output shaft of motor is connected with straight-bar, and straight-bar passes through film
Bar briquetting offsets with flexible sheet；
Diaphragm seat is being equipped with a frustum close to valve body side, and the conical surface is close to sealing with the inside edge of valve body；Diaphragm seat briquetting one
End is connect by screw thread with valve body, and the other end is connect by pin and screw thread with the driver connection seat on driver.
2. pressure maintaining organic matter sampler in deep-sea according to claim 1, which is characterized in that the sampler includes sampling
Cylinder drive end bearing bracket, sampler barrel, sampling bag and sampler barrel rear end cap, sampler barrel drive end bearing bracket, sampler barrel rear end cap are close with sampler barrel respectively
Envelope connects, and a wedge block is arranged on sampler barrel drive end bearing bracket, and sampling bag one end and lozenges are tightly connected, and injection port passes through wedge-shaped
Block is connected to sampling bag, and the sampling bag other end and metal drops block are tightly connected, and sampler barrel drive end bearing bracket is provided with discharge outlet.
3. pressure maintaining organic matter sampler in deep-sea according to claim 1, which is characterized in that be arranged in the metal shut-off valve
Pressure spring on valve rod is made of titanium alloy.
4. pressure maintaining organic matter sampler in deep-sea according to claim 1, which is characterized in that control device, sampler and
It is connected between pressurizer by metal titanium tube.
5. pressure maintaining organic matter sampler in deep-sea according to claim 2, which is characterized in that the sampling bag is titanium foil sampling
Bag, sampler barrel are titanium alloy sampler barrel.
6. pressure maintaining organic matter sampler in deep-sea according to claim 2 or 5, which is characterized in that sampling bag and wedge block, gold
Category pendant block passes through respectively to be welded and fixed.
7. pressure maintaining organic matter sampler in deep-sea according to claim 2, which is characterized in that sampler barrel drive end bearing bracket, sampler barrel
Rear end cap is connected through a screw thread respectively with sampler barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710984626.4A CN107907369B (en) | 2017-10-20 | 2017-10-20 | A kind of deep-sea pressure maintaining organic matter sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710984626.4A CN107907369B (en) | 2017-10-20 | 2017-10-20 | A kind of deep-sea pressure maintaining organic matter sampler |
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| Publication Number | Publication Date |
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| CN107907369A CN107907369A (en) | 2018-04-13 |
| CN107907369B true CN107907369B (en) | 2019-11-08 |
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| CN201710984626.4A Active CN107907369B (en) | 2017-10-20 | 2017-10-20 | A kind of deep-sea pressure maintaining organic matter sampler |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855306A (en) * | 2020-07-14 | 2020-10-30 | 上海交通大学 | Compressed type in-situ seawater sampler with buffer and active pressure maintaining functions in empty cabin and application method of compressed type in-situ seawater sampler |
| CN112255021B (en) * | 2020-10-22 | 2022-07-19 | 自然资源部第一海洋研究所 | Deep sea composite type deep sea-shaped sampler sample holding device |
| CN112945631B (en) * | 2021-01-29 | 2022-10-21 | 浙江大学 | Pressure maintaining transfer device for deep sea pore water |
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| CN1837770A (en) * | 2006-04-24 | 2006-09-27 | 浙江大学 | A hand-held deep-sea air-tightness isobaric sampler for hydrothermal fluid |
| CN202545835U (en) * | 2012-02-03 | 2012-11-21 | 江苏海纳机电集团有限公司 | Metal membrane stop valve |
| CN103884536A (en) * | 2014-03-24 | 2014-06-25 | 浙江大学 | Electric deep-sea hydrothermal pressure-maintaining sampler |
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2017
- 2017-10-20 CN CN201710984626.4A patent/CN107907369B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1837770A (en) * | 2006-04-24 | 2006-09-27 | 浙江大学 | A hand-held deep-sea air-tightness isobaric sampler for hydrothermal fluid |
| CN202545835U (en) * | 2012-02-03 | 2012-11-21 | 江苏海纳机电集团有限公司 | Metal membrane stop valve |
| CN103884536A (en) * | 2014-03-24 | 2014-06-25 | 浙江大学 | Electric deep-sea hydrothermal pressure-maintaining sampler |
Non-Patent Citations (1)
| Title |
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| A seamless system for the collection and cultivation of extremophiles from deep-ocean hydrothermal vents;A. Malahoff et al.;《IEEE Journal of Oceanic Engineering》;20021031;第27卷(第4期);第862-869页：图3 * |
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