CN109556904B - Sampling test platform for full-sea-depth airtight sampler - Google Patents

Sampling test platform for full-sea-depth airtight sampler Download PDF

Info

Publication number
CN109556904B
CN109556904B CN201910006673.0A CN201910006673A CN109556904B CN 109556904 B CN109556904 B CN 109556904B CN 201910006673 A CN201910006673 A CN 201910006673A CN 109556904 B CN109556904 B CN 109556904B
Authority
CN
China
Prior art keywords
oil cylinder
box body
proximity switch
sampler
sliding frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910006673.0A
Other languages
Chinese (zh)
Other versions
CN109556904A (en
Inventor
何术东
彭佑多
金永平
万步炎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan University of Science and Technology
Original Assignee
Hunan University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunan University of Science and Technology filed Critical Hunan University of Science and Technology
Priority to CN201910006673.0A priority Critical patent/CN109556904B/en
Publication of CN109556904A publication Critical patent/CN109556904A/en
Application granted granted Critical
Publication of CN109556904B publication Critical patent/CN109556904B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention discloses a sampling test platform of an all-sea-depth airtight sampler, which comprises an oil cylinder box body, a mud box, a hydraulic oil cylinder, a sliding assembly, a stand column and a control console, wherein the oil cylinder box body is provided with a mud box; a hydraulic oil cylinder is vertically arranged in the oil cylinder box body, a piston rod of the hydraulic oil cylinder extends out of the oil cylinder box body, the upper end of the piston rod is connected with the sliding assembly, and a tension sensor is arranged on the piston rod; the upright post is vertically arranged on a top plate of the oil cylinder box body, and the mud box is arranged outside the oil cylinder box body close to the oil cylinder box body; the sliding assembly comprises a sliding frame and a sampler clamping device; the sliding frame is provided with a guide hole corresponding to the upright post, and the guide hole is sleeved on the upright post; the proximity switch, the displacement sensor and the tension sensor are connected with the console. The device has a simple, compact and reasonable structure, can provide an experimental basis for researching the relation between the sampling efficiency of the full-sea-depth sediment sampler and the factors such as the structural form, sampling speed and diameter of the sampling pipe of the sampler, and reduces the design research cost.

Description

Sampling test platform for full-sea-depth airtight sampler
Technical Field
The invention relates to a sampling test platform of a full-sea deep airtight sampler.
Background
The seabed crust contains abundant mineral resources including petroleum, natural gas, polymetallic nodules, cobalt-rich crusts, hydrothermal sulfides, marine organisms, natural gas hydrates, clay minerals and the like, and the resources have great economic value and strategic significance. In the present day that land resources are gradually exhausted, the development and utilization of marine resources are more and more emphasized by human beings.
At present, developed countries such as the United states, Japan, Australia and the like have made great breakthrough in submarine technology, deep-sea airtight sampling devices are developed successively, and important guarantee is provided for research of submarine surface organisms and the like. However, at present, the sampling efficiency of the domestic seabed sediment sampler is not high, the relationship between the sampling efficiency and factors such as the structural form of the sampler, the sampling speed, the diameter of the sampling tube and the like is not deeply researched, the seabed sampling is thousands of meters or more, the environment is severe, the experimental verification of the sampler in the research and development design process is not facilitated, and even if the seabed sampling test is carried out, the sampling test cost is very high. Therefore, a reliable and efficient sampling test platform for the seabed sediment airtight object sampler is designed, and an important means is provided for deeply researching the relation between the sampling efficiency and the factors such as the structural form of the sampler, the sampling speed, the diameter of the sampling tube and the like.
Disclosure of Invention
In order to solve the technical problems, the invention provides a sampling test platform which is simple and compact in structure and high in reliability.
The technical scheme adopted by the invention is as follows: a sampling test platform of a full-sea-depth airtight sampler comprises an oil cylinder box body, a mud box, a hydraulic oil cylinder, a sliding assembly, a stand column and a control console; a hydraulic oil cylinder is vertically arranged in the oil cylinder box body, a piston rod of the hydraulic oil cylinder extends out of the oil cylinder box body, the upper end of the piston rod is connected with the sliding assembly, and a tension sensor is arranged on the piston rod; the upright post is vertically arranged on a top plate of the oil cylinder box body, and the mud box is arranged outside the oil cylinder box body close to the oil cylinder box body;
the sliding assembly comprises a sliding frame and a sampler clamping device; the sliding frame is provided with a guide hole corresponding to the upright post, and the guide hole is sleeved on the upright post; the sampler clamping device is arranged on the sliding frame and positioned above the mud box, and can clamp the sampler; a plurality of proximity switches are arranged on the sliding frame; the electronic cabin of the displacement sensor is arranged on the side face of the oil cylinder box body, the magnetic ring of the displacement sensor is fixedly arranged on the sliding frame, and the proximity switch, the displacement sensor and the tension sensor are connected with the control console.
In the sampling test platform of the full-sea-depth airtight sampler, the sampler clamping device comprises a locking support, a locking block and a locking screw I; the locking support is fixedly arranged on the sliding frame and arranged above the mud box, one end of the locking block is hinged with the fixed rod, the fixed rod is fixedly arranged on the sliding frame, and the other end of the locking block is provided with a screw groove; one end of the locking screw I is hinged with the locking support, and the other end of the locking screw I is arranged in the screw groove and locked through a nut.
In the sampling test platform of the full-sea-depth airtight sampler, the sampler clamping device comprises a clamping fixing piece, a clamping moving piece and a locking screw II; the clamping and fixing piece is fixedly arranged on the sliding frame and is arranged above the mud box; the clamping movable part is connected with the clamping fixed part through a locking screw II.
In the full-sea-depth airtight sampler sampling test platform, the guide hole of the sliding frame is internally provided with the linear bearing, and the linear bearing is sleeved on the stand column.
In the above-mentioned full-sea-depth airtight sampler sampling test platform, still include the base, hydro-cylinder box and two mud tanks fixed mounting on the base.
In the all-sea-depth airtight sampler sampling test platform, the upper end of the piston rod of the hydraulic oil cylinder is provided with a sensor joint, the sensor joint is connected with the sliding assembly, and a tension sensor is arranged between the sensor joint and the sliding assembly.
In the sampling test platform of the all-sea-depth airtight sampler, the top of the upright post is provided with a connecting plate, the connecting plate is provided with a proximity switch detection block mounting seat I and a proximity switch detection block mounting seat II, and the top plate of the oil cylinder box body is provided with a proximity switch detection block mounting seat III and a proximity switch detection block mounting seat IV; be equipped with four proximity switches on the carriage, four proximity switches detect a mount pad I, proximity switch and detect a mount pad II, proximity switch and detect a mount pad III and proximity switch and detect a mount pad IV setting corresponding to proximity switch respectively, and four proximity switches are connected with the control cabinet respectively.
Compared with the prior art, the invention has the technical effects that:
1) the invention has simple and compact structure, convenient operation and low cost;
2) the invention provides an experimental basis for researching the sampling efficiency and factors such as the structural form of the sampler, the sampling speed, the diameter of the sampling tube and the like, and can greatly reduce the design, research and development cost of the full-sea deep airtight sampler;
3) the experimental platform facilitates the experimental verification of the sampler in the research and development design process and greatly reduces the manpower, financial and material cost required by the experimental verification.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a left side view of the present invention.
Figure 3 is a front view of the slide assembly of the present invention.
Figure 4 is a top view of the slide assembly of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-2, the invention comprises a base 1, an oil cylinder box body 2, two mud boxes 3, a hydraulic oil cylinder 4, a box body upper cover plate 5, a sensor joint 6, a tension sensor 7, a sliding assembly 8, a proximity switch detection block mounting seat I9, a displacement sensor 10, an upright post 11, a connecting plate 12, a proximity switch detection block mounting seat II13, a proximity switch detection block mounting seat III28, a proximity switch detection block mounting seat IV29 and a control console.
The bottom of the oil cylinder box body 2 is fixed on the base 1 through bolts, and the top plate 5 of the oil cylinder box body 2 is provided with two upright posts 11 through bolts. A hydraulic oil cylinder 4 is arranged in the middle of the oil cylinder box body 2, and the upper end of a cylinder barrel of the hydraulic oil cylinder 4 is connected with a top plate 5 of the oil cylinder box body 2 through a flange plate. A through hole is arranged in the middle of a top plate 5 of the oil cylinder box body 2, and a piston rod of the hydraulic oil cylinder 4 penetrates through the through hole to be connected with the sliding assembly 8. The middle part is equipped with proximity switch detection piece mount pad III28 and proximity switch detection piece mount pad IV29 on the roof of hydro-cylinder box 2, installs respectively on two mount pads and detects the piece. A sensor joint 6 is arranged at the end part of the piston rod of the hydraulic oil cylinder 4, and a tension sensor 7 is arranged between the sensor joint 6 and the sliding component 8. And a proximity switch detection block mounting seat I9 and a proximity switch detection block mounting seat II13 are arranged on one side of the connecting plate 12 at the top ends of the two vertical columns, and detection blocks are respectively mounted on the two mounting seats. Two mud boxes 3 are arranged near the oil cylinder box 2 and are positioned on the outer side of the oil cylinder box 2 and are arranged on the base 1.
As shown in fig. 3 and 4, the slide assembly 8 includes a slide frame 23 and two sampler clamps. The sliding frame 23 is provided with two guide holes corresponding to the two upright posts, linear bearings are arranged in the guide holes, and the linear bearings are sleeved on the corresponding upright posts. The two sampler clamping devices are arranged on the sliding frame and are respectively positioned above the two mud boxes, and the samplers can be clamped tightly. The sliding frame 23 is provided with a proximity switch 25, a proximity switch 26, a proximity switch 17 and a proximity switch 27; the proximity switch 26 and the proximity switch 27 are provided corresponding to the proximity switch detection block mounting seat III28 and the proximity switch detection block mounting seat IV29, respectively, and the proximity switch 17 and the proximity switch 25 are provided corresponding to the proximity switch detection block mounting seat ii13 and the proximity switch detection block mounting seat I9, respectively. The electronic cabin of the displacement sensor 10 is arranged on the side surface of the oil cylinder box body 2, the magnetic ring of the displacement sensor 10 is fixedly arranged on the sliding frame 23, and the proximity switch 25, the proximity switch 26, the proximity switch 17, the proximity switch 27, the displacement sensor 10 and the tension sensor 7 are respectively connected with the console.
One of the two sampler clamping devices is of an integral structure and comprises a locking support 16, a locking block 15 and a locking screw I14; the locking support 16 is fixedly arranged on the sliding frame 23, the locking support 16 is arranged above a mud box, one end of the locking block 15 is hinged with a fixed rod, the fixed rod is fixedly arranged on the sliding frame 23, and the other end of the locking block 15 is provided with a screw groove; one end of the locking screw I14 is hinged with the locking support 16, and the other end is arranged in the screw groove and locked by a nut. The other is a split structure and comprises a clamping fixed part, a clamping movable part and a locking screw II; the clamping and fixing piece is fixedly arranged on the sliding frame and is arranged above the other mud box; the clamping movable part is connected with the clamping fixed part through a locking screw II. The tail end of the locking screw II20 is provided with a rocker 19 which is connected with a handle 18; the clamping function of the clamping movable part 21 and the clamping fixed part 22 is realized by the locking screw II 20.
When the invention is used, the concrete installation and application operation steps are as follows:
1) connecting the base 1 and the oil cylinder box body 2 through bolts;
2) the hydraulic oil cylinder 4 is placed in the oil cylinder box body 2 to ensure that the rear end of the hydraulic oil cylinder directly contacts the bottom surface of the oil cylinder box body 2, a top plate 5 of the oil cylinder box body is connected with the upper end of the oil cylinder box body through a bolt, an oil cylinder piston rod penetrates through a through hole to be connected with a sliding assembly 8, and a sensor joint 6 is installed at the end part of the oil cylinder piston rod;
3) the installation of the sliding assembly 8 is completed, the installation of the double-upright-column 11 and the connecting plate 12 is completed, the sliding assembly 8 is installed into the double-upright-column to an appointed installation position according to the assembly requirement, and the double-upright-column 11 is connected with the oil cylinder box body 2 through bolts;
4) a tension sensor 7 is arranged on the sensor joint 6, and the upper end of the tension sensor 7 is connected with the sliding assembly through a connecting seat bolt;
5) installing a displacement sensor, installing an electronic bin of the displacement sensor 10 on the side surface of the upper end of the oil cylinder box body 4, and installing a magnetic ring sleeved on the measuring rod on the sliding assembly 8;
6) a proximity switch is installed, and a proximity switch 25, a proximity switch 26, a proximity switch 17 and a proximity switch 27 are installed at the lower end of the sliding assembly 8. The proximity switch 25 is an upward proximity switch of the sliding assembly 8, and a detection block of the proximity switch is arranged on a proximity switch detection block mounting seat I9; the proximity switch 17 is a slide assembly 8 uplink safety proximity switch, and a detection block of the proximity switch is installed on a proximity switch detection block installation seat II 13. The proximity switch 27 is a downward proximity switch of the sliding assembly 8, and a detection block of the proximity switch is arranged on a proximity switch detection block mounting seat IV 29; the proximity switch 26 is a slide assembly 8 descending safety proximity switch, and a detection block of the proximity switch 26 is arranged on a proximity switch detection block mounting seat III 28;
7) split and integral sampler clamping devices are installed and fixed on the sliding component 8 through bolt connection;
8) connecting a power line, a control line, a tension sensor output signal line and a displacement sensor output signal line with a touch screen (data acquisition software) and a console;
9) checking whether relevant detecting instruments are installed as required (a displacement sensor and an S-shaped tension sensor) and whether data acquisition software reading is correct;
10) preparing sediments with similar proportion to marine sediments on the basis of analyzing different physical characteristics of sediment samples sampled from the seabed, and putting the sediments into a sediment mud box 3;
11) for the split-type sampler test, the handle 18 is rotated, after the clamping movable piece 21 is loosened, the sampling tube handle is placed between the opening clamping movable piece 21 and the opening clamping fixed piece 22, and then the handle 18 is rotated, so that the sampling tube handle is fixed on the clamping device as required; for the integral sampler test, a tool is used to rotate the locking screw 14, open the locking block 15, place the integral sampler into the semicircular locking support 16, then close the locking block 15, and fix the integral sampler by tightening the hexagon nut on the locking screw 14. In both forms, the sampler ensures that the axis of the sampling tube is vertical to the horizontal plane;
12) and (4) testing. And respectively carrying out simulation sampling tests under the conditions of different sampling speeds, different proportions of sediments, sampling pipes with different opening sizes and different structural forms of sea fishing, and determining the optimal sampling speed, the optimal sampling pipe opening size and the optimal structural form of sea fishing according to the sampling quantity of the sampling pipes under different conditions recorded by the reading of data acquisition software.

Claims (5)

1. The utility model provides a deep airtight sampler sample test platform in full sea, characterized by: comprises a base, an oil cylinder box body, a mud box, a hydraulic oil cylinder, a sliding assembly, an upright post and a control console; the oil cylinder box body and the two mud boxes are fixedly arranged on the base; a hydraulic oil cylinder is vertically arranged in the oil cylinder box body, a piston rod of the hydraulic oil cylinder extends out of the oil cylinder box body, the upper end of the piston rod is connected with the sliding assembly, and a tension sensor is arranged on the piston rod; the upright post is vertically arranged on a top plate of the oil cylinder box body, and the mud box is arranged outside the oil cylinder box body close to the oil cylinder box body;
the sliding assembly comprises a sliding frame and a sampler clamping device; the sliding frame is provided with a guide hole corresponding to the stand column, a linear bearing is arranged in the guide hole of the sliding frame, and the linear bearing is sleeved on the stand column; the sampler clamping device is arranged on the sliding frame and positioned above the mud box, and can clamp the sampler; a plurality of proximity switches are arranged on the sliding frame; the electronic cabin of the displacement sensor is arranged on the side face of the oil cylinder box body, the magnetic ring of the displacement sensor is fixedly arranged on the sliding frame, and the proximity switch, the displacement sensor and the tension sensor are connected with the control console.
2. The full-sea deep airtight sampler sampling test platform of claim 1, wherein: the sampler clamping device comprises a locking support, a locking block and a locking screw I; the locking support is fixedly arranged on the sliding frame and arranged above the mud box, one end of the locking block is hinged with the fixed rod, the fixed rod is fixedly arranged on the sliding frame, and the other end of the locking block is provided with a screw groove; one end of the locking screw I is hinged with the locking support, and the other end of the locking screw I is arranged in the screw groove and locked through a nut.
3. The full-sea deep airtight sampler sampling test platform of claim 1, wherein: the sampler clamping device comprises a clamping fixed part, a clamping movable part and a locking screw II; the clamping and fixing piece is fixedly arranged on the sliding frame and is arranged above the mud box; the clamping movable part is connected with the clamping fixed part through a locking screw II.
4. The full-sea deep airtight sampler sampling test platform of claim 1, wherein: the upper end of a piston rod of the hydraulic oil cylinder is provided with a sensor connector, the sensor connector is connected with the sliding assembly, and a tension sensor is arranged between the sensor connector and the sliding assembly.
5. The full-sea deep airtight sampler sampling test platform of claim 1, wherein: the top of the upright post is provided with a connecting plate, the connecting plate is provided with a proximity switch detection block mounting seat I and a proximity switch detection block mounting seat II, and the top plate of the oil cylinder box body is provided with a proximity switch detection block mounting seat III and a proximity switch detection block mounting seat IV; and four proximity switches are arranged on the sliding frame and respectively correspond to the proximity switch detection block mounting seat I, the proximity switch detection block mounting seat II, the proximity switch detection block mounting seat III and the proximity switch detection block mounting seat IV.
CN201910006673.0A 2019-01-04 2019-01-04 Sampling test platform for full-sea-depth airtight sampler Active CN109556904B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910006673.0A CN109556904B (en) 2019-01-04 2019-01-04 Sampling test platform for full-sea-depth airtight sampler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910006673.0A CN109556904B (en) 2019-01-04 2019-01-04 Sampling test platform for full-sea-depth airtight sampler

Publications (2)

Publication Number Publication Date
CN109556904A CN109556904A (en) 2019-04-02
CN109556904B true CN109556904B (en) 2021-02-23

Family

ID=65872328

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910006673.0A Active CN109556904B (en) 2019-01-04 2019-01-04 Sampling test platform for full-sea-depth airtight sampler

Country Status (1)

Country Link
CN (1) CN109556904B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115561007A (en) * 2022-09-20 2023-01-03 中国船舶科学研究中心 Water hydraulic driving sampling equipment under high-pressure simulation cabin environment and maintenance method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1762159A1 (en) * 1990-03-19 1992-09-15 Научно-Технический Кооператив "Изобретатель" Bathometer
CN1789952A (en) * 2005-12-09 2006-06-21 中国海洋石油总公司 Hydraulic driven in-situ air-keeping sampler for seabed sediment
DE102005006039A1 (en) * 2005-02-07 2006-08-10 Friedrich Abegg Sediment core sub-sampling device for e.g. exploration of sea, has core liner sealed to pressure chamber housing by lip seal, so that increase in pressure pushes piston to hydraulically move sediment core in to transfer line
CN201069417Y (en) * 2007-08-13 2008-06-04 任雁胜 A folding telescopic classis for sea bottom sampling driller
CN105547752A (en) * 2016-01-06 2016-05-04 国家海洋局第二海洋研究所 Oceanographic survey sampling device and method
CN108984896A (en) * 2018-07-10 2018-12-11 湖南科技大学 The airtight sampler turnover panel sealing valve optimum design method of the complete deep deposit in sea
CN209513301U (en) * 2019-01-04 2019-10-18 湖南科技大学 A kind of deep airtight sampler sampling test platform in full sea

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1762159A1 (en) * 1990-03-19 1992-09-15 Научно-Технический Кооператив "Изобретатель" Bathometer
DE102005006039A1 (en) * 2005-02-07 2006-08-10 Friedrich Abegg Sediment core sub-sampling device for e.g. exploration of sea, has core liner sealed to pressure chamber housing by lip seal, so that increase in pressure pushes piston to hydraulically move sediment core in to transfer line
CN1789952A (en) * 2005-12-09 2006-06-21 中国海洋石油总公司 Hydraulic driven in-situ air-keeping sampler for seabed sediment
CN201069417Y (en) * 2007-08-13 2008-06-04 任雁胜 A folding telescopic classis for sea bottom sampling driller
CN105547752A (en) * 2016-01-06 2016-05-04 国家海洋局第二海洋研究所 Oceanographic survey sampling device and method
CN108984896A (en) * 2018-07-10 2018-12-11 湖南科技大学 The airtight sampler turnover panel sealing valve optimum design method of the complete deep deposit in sea
CN209513301U (en) * 2019-01-04 2019-10-18 湖南科技大学 A kind of deep airtight sampler sampling test platform in full sea

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
全海深沉积物保压容器结构多目标优化设计;刘广平,等;《制造业自动化》;20171130;65-69 *

Also Published As

Publication number Publication date
CN109556904A (en) 2019-04-02

Similar Documents

Publication Publication Date Title
US10816448B2 (en) Device for measuring strength and strain softening parameters of saturated clay sample based on full-flow penetration
EP3798365A1 (en) Seabed static penetration device and penetration method based on marine observation probe rod
CN103868799B (en) Rock mechanical characteristic analyzer for non-conventional oil-gas reservoir stratum
CN1790017A (en) Multifunctional multi-channel detection rod for monitoring pore water pressure of seabed soil
CN101034050A (en) Fast desorption meter for gas content of goal seam
CN203869959U (en) Analysis meter for rock mechanics characteristics of unconventional oil and gas reservoir
CN201965059U (en) Rock mechanics triaxial test device of natural gas hydrate
CN103149145B (en) Deep sea mud environment corrosion testing apparatus
CN109556904B (en) Sampling test platform for full-sea-depth airtight sampler
CN102564853A (en) Natural gas hydrate rock mechanical triaxial tester
CN1900682A (en) Mechanical property in situ detector for deep sea surface layer deposit sediment
CN112577771A (en) Marine geological sediment sampling structure
CN105571931A (en) Multifunctional underwater dynamic penetration and in-situ test device
CN110308052A (en) Hollow rock sample Radial Flow Through Porous Media experimental rig and test method based on acoustic emission
CN216247447U (en) Loading device for railway engineering investigation soil sample expansion test
CN208283111U (en) A kind of water quality detecting device
CN108397689B (en) Sewage pipe network quality rapid judging device and method based on Internet of things technology
CN209513301U (en) A kind of deep airtight sampler sampling test platform in full sea
CN201464331U (en) Axial loading device for gassy coal thermo-hydro-mechanical coupling triaxial servo seepage tests
CN104677681A (en) Trigger sinking type water sampling device
CN202991008U (en) Dynamometric device for simulating mechanical characteristic of bottom-hole assembly
CN109991071B (en) Ship-based portable deep open sea seabed soil in-situ strength testing device
CN2919231Y (en) Device for measuring intensity and deformation performance of abyssal surface sediment
CN207366242U (en) A kind of Geological Engineering sampler
CN201583366U (en) Deep sea thin and soft substrate penetration resistance in-situ tester

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant