CN106872212B - High-efficient seabed top layer fine sand sampling device based on simple rod body - Google Patents
High-efficient seabed top layer fine sand sampling device based on simple rod body Download PDFInfo
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- CN106872212B CN106872212B CN201710022177.5A CN201710022177A CN106872212B CN 106872212 B CN106872212 B CN 106872212B CN 201710022177 A CN201710022177 A CN 201710022177A CN 106872212 B CN106872212 B CN 106872212B
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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
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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
- G01N2001/1006—Dispersed solids
- G01N2001/1012—Suspensions
- G01N2001/1025—Liquid suspensions; Slurries; Mud; Sludge
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Abstract
The invention discloses a high-efficiency seabed surface layer fine sand sampling device based on a simple rod body. It includes: the sampling tube is regularly distributed by adopting a plurality of hollow steel tubes, one end of the sampling tube is fixed on the same section of the supporting steel tube, the other end of the sampling tube is unfolded around the supporting steel tube, and the sampling tube is fixed with the other section of the supporting steel tube by adopting a fixed rod; and the gravity center adjusting piece is fixed on the supporting steel pipe and used for adjusting the gravity center. The invention can be submerged into deeper water to collect fine sand samples, and is suitable for geological mapping of rivers, lakes, oceans and land water areas with various flow velocities and various water depths, underwater prospecting, engineering geological or ecological environment research and the like. And can be widely applied to oceanographic survey, oceanographic surveying and mapping and oceanographic engineering.
Description
Technical Field
The invention belongs to the technical field of ocean investigation and seabed sample sampling, and particularly relates to a high-efficiency seabed surface layer fine sand sampling device and method based on a simple rod body.
Background
Marine geological research requires not only the acquisition of a certain number of samples of the seabed surface, but also the preservation of the original state of the samples. At present, the types of seabed surface layer sampling devices are various, fine sand grain samples are difficult to collect by common seabed surface layer sampling devices, and the mechanically controlled seabed surface layer sampling devices cannot submerge into deeper water. In order to obtain more raw state samples, many researchers have made many improvements on surface sampling devices for a long time, but the effect is not obvious.
Aiming at the problems, the efficient seabed surface layer fine sand sampling device is designed, has the advantages of multiple sampling devices, can submerge into a deeper water area to collect fine sand grain samples, and is suitable for rivers, lakes and oceans with various flow velocities and various water depths. The method is suitable for geological mapping, underwater prospecting, engineering geology or ecological environment research of ocean and land water areas.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the efficient seabed surface layer fine sand sampling device based on the simple rod body, and the device has the characteristics of simplicity in installation, simplicity and convenience in disassembly and operation, good safety, stable posture and the like.
The invention is realized by the following technical scheme:
the utility model provides a high-efficient seabed top layer fine sand sampling device based on simple and easy body of rod, includes: the sampling tube is regularly distributed by adopting a plurality of hollow steel tubes, one end of the sampling tube is fixed on the same section of the supporting steel tube, the other end of the sampling tube is unfolded around the supporting steel tube, and the sampling tube is fixed with the other section of the supporting steel tube by adopting a fixed rod; and the gravity center adjusting piece is fixed on the supporting steel pipe and used for adjusting the gravity center.
The support steel pipe is fixed on the base through welding.
The base is made of a square steel plate.
The gravity center adjusting piece is an annular lead block.
The gravity center adjusting piece is located between the base and the other cross section of the fixed supporting steel pipe, the position of the gravity center adjusting piece is adjustable up and down, the gravity center of the sampling process is located at the upper part of the center of the sampling device, and the gravity center of the recovery process is located at the lower part of the center of the sampling device, so that the sampling and the recovery are convenient and stable.
The position of the gravity center adjusting piece can be automatically adjusted up and down.
The gravity center adjusting piece is positioned on the same section of the fixed rod and the support steel pipe.
The sampling tube adopts three hollow steel tubes which are adjacently separated by 120 degrees.
The invention has the beneficial effects that:
1) and (4) stability. The solid steel pipe can improve the quality of the sampling device, and ensure that the sampling device can stably descend to the surface of the seabed and stably ascend to avoid the loss of the obtained fine sand sample in the descending process; the gravity center adjusting piece is fixed with the hollow steel pipe and the solid steel pipe into a whole, the gravity center of the gravity center adjusting piece is improved to the center position of the sampling device, the stability of the sampling device is guaranteed, and the influence of different flow rates in the water body on the descending and ascending processes of the sampling device in water is weakened.
2) And (4) operability. Adopt simple and easy body of rod device to be convenient for to fine sand sampling device operation and installation, reduced operating personnel's intensity of labour, descend to the seabed after, single can accomplish sampling device receive and release, sample collection and dismantlement work.
3) Convenience. The fine sand sampling device has small volume, light weight and small size, can be conveniently used on a small ship or other floating devices, and is convenient to transport and store.
4) And (4) detachability. The U-shaped connecting buckle is connected with the steel cable, so that the disassembly is simple after the use, and the disassembly can be finished by a single person.
5) Easy maintenance. The fine sand sampling device is simple in design, all parts are made of seawater corrosion resistant materials such as stainless steel, and the fine sand sampling device is easy to maintain at a later stage.
6) And (4) safety. The fine sand sampling device has a simple structure, guarantees the reliability of seabed sampling action, and has high sand grain sample collection rate and low disturbance degree. Can effectively ensure the safety of instruments and personnel.
The invention can be widely used in submarine geological sampling, marine surveying and mapping, marine monitoring, marine engineering and marine scientific research.
Drawings
FIG. 1 is a top view of the overall structure of the present invention;
FIG. 2 is a side view of the overall structure of the present invention;
in the figure: support steel pipe 1, base 2, sampling tube 3, focus adjusting part 4, U type connector link 1.1, three dead levers 3.1, solid annular lead 4.1.
Detailed Description
To further understand the technical contents, features and effects of the present invention, the following examples are listed and the following detailed description is made with reference to the accompanying drawings.
Referring to the attached figures 1 and 2, the utility model provides a high-efficient seabed top layer fine sand sampling device based on simple and easy body of rod, includes: the device comprises a support steel pipe 1, a base 2, a sampling pipe 3 and a gravity center adjusting piece 4; one end of the supporting steel tube 1 is vertically fixed at the gravity center of the base 2 (so the base is generally regular and convenient for positioning the gravity center), and the other end is provided with a U-shaped connecting buckle 1.1 for connecting a steel cable or other ropes. The supporting steel pipe 1 is generally a solid steel pipe, so that the quality of the sampling device is improved, and the sampling device can stably descend to the surface of the seabed and stably ascend in the descending process to avoid the loss of the obtained fine sand sample.
The sampling tube 3 is made of a plurality of hollow steel tubes (3 in the figure, but other numbers can be used), is regularly distributed, one end of the sampling tube is fixed on the same section of the support steel tube 1, the other end of the sampling tube is unfolded around the support steel tube 1, and is fixed with the other section of the support steel tube 1 by a fixing rod 3.1; and the gravity center adjusting piece 4 is fixed on the support steel pipe 1 and used for adjusting the gravity center.
The support steel pipe 1 is fixed on the base 2 through welding.
The base 2 is a square steel plate, so that the base is convenient to stably place.
The gravity center adjusting piece 4 is an annular lead block.
The focus regulating part 4 is located between base 2 and another cross-section that dead lever 3.1 and support steel pipe 1 are fixed, the position of focus regulating part is adjustable from top to bottom, the sampling process focus is located the upper portion at sampling device center, the recovery process focus is located the lower part at sampling device center, be convenient for sample and retrieve firmly, has weakened the influence that sampling device descends in aqueous and the different velocity of flow in the process of rising by the water body.
The position of the gravity center adjusting piece can be automatically adjusted up and down according to hydrological conditions.
The gravity center adjusting piece is positioned on the same section of the fixed rod 3.1 fixed with the supporting steel pipe 1.
The sampling tube 3 adopts three hollow steel tubes which are adjacently separated by 120 degrees, so that the sampling device can smoothly collect fine sand samples on the surface of the seabed.
All parts are made of materials which are resistant to seawater corrosion and have a biological adhesion preventing coating, and the direct welding of the parts needs to be subjected to corrosion prevention treatment so as to enhance the stability of the sampling device.
The use method of the efficient seabed surface fine sand sampling device based on the simple rod body comprises the steps of connecting the sampling device with a steel cable through a U-shaped connecting buckle 1.1, moving the sampling device to a position right above the sea surface by enabling the steel cable to pass through a fixed pulley of a hanging bracket, and closing a power system of a ship body, namely enabling the ship body to be in a static state; the winch is used for winding and unwinding the steel cable, so that the ascending and descending of the sampling device are controlled; slowly descending the sampling device to the seabed through a winch, and judging whether the fine sand sampling device reaches the surface of the seabed or not through the tightening or loosening state of a steel cable; if the steel cable is still in a tight state, the steel cable is required to be placed, otherwise, the placement is stopped; when the fine sand sampling device reaches the surface of the seabed, a power system of the ship body is started, and the fine sand sampling device runs at the speed of 1-2 knots for about 50m to finish the fine sand sampling work.
Example 1
In order to effectively verify the sampling effect of the sampling device on the seabed, dozens of experiments are carried out on the shallow of Taiwan in 2016, from 7/15 th to 2016, from 7/21 th; the shallow hydrologic complex of Taiwan, the average wave height of sand waves in the region reaches 13.5m, the water depth at the peak of the sand waves is 20.42m, the average wave height of the sand waves is about 2/3 of the water depth, and most of the wavelengths of the sand waves are between 500 and 700 m; the sampler is very representative for testing the performance of the sampling device, is simple to operate and control in the experimental process, and can be completed by only 1-2 persons in about 5-6 minutes; firstly, fixing the ship on a steel cable of a winch at a ship position; then slowly putting down the steel cable until the steel cable is put down to the seabed, and shaking the steel cable to judge whether the steel cable reaches the seabed; and finally, commanding the test ship to move forwards for about 5-10 meters to finish the collection.
The experiment is carried out in this region for tens of times, through observing typical experimental sample, can see the difference at different depth of water sand grain samples, and the sample is comparatively complete, and the resolution is high, can satisfy subsequent experimental study.
Table 1 shows the comparison of information of two sampling water depth areas with large difference, which indicates that the difference between the depths of the two areas reaches about 40 m; table 1 corresponds to the samples sampled in the two areas, and it can be seen from the samples that the samples sampled in the area of about 23 m are fine sand particles, and the samples sampled in the area of 65 m are fine sand particles with mud, and the color of the samples is darker.
From the above figures, we can know that the seabed surface layer sampling device can deal with different environments, different seabed surface layers and other conditions, and can acquire abundant and complete samples.
TABLE 1 sample comparison
| Longitude (G) | 118.606342° | 118.515166 |
| Latitude | 23.031516° | 22.973139 |
| Depth of sample | 23.85m | 64.95m |
| Sample characterization | Fine sand grains | Mud-like fine sand grains |
Example 2
Referring to attached drawings 1 and 2, a high-efficiency seabed surface layer fine sand sampling device based on a simple rod body is manufactured, the seabed surface layer fine sand sampling device is subjected to dozens of experiments on a certain southeast island shoal in China, the sampling depth is different from 20-65 meters, abundant and complete samples can be successfully acquired, and the acquisition work of the sampling device is not obviously influenced by different flow rates. The sampling device has light weight and small size, and can be conveniently used on small ships or other floating devices; meanwhile, the reliability of seabed sampling action is ensured, the sand grain sample collection rate is high, and the disturbance degree is low. The method has the characteristics of simple operation, high success rate, stable operation, manpower and material resource saving and the like under multiple depths.
Claims (4)
1. The utility model provides a high-efficient seabed top layer fine sand sampling device based on simple and easy body of rod which characterized in that includes: the device comprises a support steel pipe (1), a base (2), a sampling pipe (3) and a gravity center adjusting piece (4);
one end of the supporting steel pipe (1) is vertically fixed at the gravity center of the base (2), and the other end of the supporting steel pipe is provided with a U-shaped connecting buckle (1.1) for connecting a rope;
the sampling tube (3) adopts a plurality of hollow steel tubes which are regularly distributed, one end of the sampling tube is fixed on the same section of the support steel tube (1), the other end of the sampling tube is unfolded around the support steel tube (1), and a fixed rod (3.1) is fixed with the other section of the support steel tube (1);
the gravity center adjusting piece (4) is fixed between the outer part of the supporting steel pipe (1) and the sampling pipe (3), automatically moves up and down along the supporting steel pipe (1) between the base (2) and the other section of the supporting steel pipe (1) connected with the fixed rod (3.1) to adjust the position of the gravity center adjusting piece, so that the gravity center is positioned at the upper part of the center of the sampling device in the sampling process, and the gravity center is positioned at the lower part of the center of the sampling device in the recovery process, so that the sampling and the recovery are convenient and stable, and the gravity center adjusting piece;
the gravity center adjusting piece (4) is an annular lead block.
2. The device according to claim 1, characterized in that said supporting steel tube (1) is fixed to the base (2) by welding.
3. The device according to claim 1, characterized in that the base (2) is a square steel plate.
4. The device according to claim 1, characterized in that the sampling tube (3) is made of three hollow steel tubes, which are adjacent to each other and spaced apart by 120 °.
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| CN201710022177.5A CN106872212B (en) | 2017-01-12 | 2017-01-12 | High-efficient seabed top layer fine sand sampling device based on simple rod body |
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| CN106872212B true CN106872212B (en) | 2020-12-04 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201583364U (en) * | 2009-12-18 | 2010-09-15 | 国家海洋技术中心 | Traveling temperature and salinity profile measuring system of ship |
| CN204758332U (en) * | 2015-06-30 | 2015-11-11 | 珠江水利委员会珠江水利科学研究院 | Device that depth layer transition waters deposit and plankton jointly gathered |
| CN204979130U (en) * | 2014-12-08 | 2016-01-20 | 浙江大学 | Unmanned underwater vehicle's little counter weight equipment of automation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201440115U (en) * | 2009-08-19 | 2010-04-21 | 中国科学院地球化学研究所 | Undisturbed deposition pillar core sampler |
| CN201535726U (en) * | 2009-11-17 | 2010-07-28 | 天津水运工程勘察设计院 | Anchor submarine mud sampler |
| CN201697811U (en) * | 2009-12-01 | 2011-01-05 | 大亚湾核电运营管理有限责任公司 | Underwater surface layer sediment collector |
| CN104849102B (en) * | 2015-04-27 | 2017-05-24 | 大连理工大学 | Laminated vibration columnar bottom sampler |
| CN104931292B (en) * | 2015-06-30 | 2018-01-02 | 珠江水利委员会珠江水利科学研究院 | The apparatus and method of depth layer transitional water area deposition thing and planktonic organism Collect jointly |
| CN105510084B (en) * | 2015-12-28 | 2019-03-29 | 广西壮族自治区海洋环境监测中心站 | Simple stocked anchor formula shallow water surface sediment sampler |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201583364U (en) * | 2009-12-18 | 2010-09-15 | 国家海洋技术中心 | Traveling temperature and salinity profile measuring system of ship |
| CN204979130U (en) * | 2014-12-08 | 2016-01-20 | 浙江大学 | Unmanned underwater vehicle's little counter weight equipment of automation |
| CN204758332U (en) * | 2015-06-30 | 2015-11-11 | 珠江水利委员会珠江水利科学研究院 | Device that depth layer transition waters deposit and plankton jointly gathered |
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Address after: 310012 No. 36 Baolu North Road, Xihu District, Hangzhou City, Zhejiang Province Applicant after: Second Institute of Oceanography, Ministry of Natural Resources Address before: 310012 No. 36 Baolu North Road, Xihu District, Hangzhou City, Zhejiang Province Applicant before: Second Institute of Oceanography, State Oceanic Administration |
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