WO2017069414A1

WO2017069414A1 - Sediment sample collection device

Info

Publication number: WO2017069414A1
Application number: PCT/KR2016/010640
Authority: WO
Inventors: 류덕희; 최희락; 신유나; 이재윤; 노성유; 송미애; 이재안; 박주순
Original assignee: 대한민국(환경부 국립환경과학원장)
Priority date: 2015-10-23
Filing date: 2016-09-23
Publication date: 2017-04-27
Also published as: KR20170047712A; KR101747840B1

Abstract

The present invention relates to a sediment sample collection device enabling a diver to quickly collect a sediment sample from underwater without causing a disturbance while preventing the sediment sample from being swept away and, simultaneously, enabling the sediment sample to be easily placed in a laboratory water tank for examination of and experimentation on the collected sediment sample. The objective of the sediment sample collection device according to the present invention is to examine underwater sediment. The sediment sample collection device comprises: a collection pipe, which has a cylinder shape of which the inside is hollow and has a step formed to extend from the peripheral surface of the upper end thereof, and a coupling ring provided along the peripheral surface of the lower end thereof and having rings aligned in a radial form; an upper cover coupled to the step of the collection pipe by bolts and nuts so as to be separable therefrom; a lower cover having a coupling member coupled to the rings, which are formed at the coupling ring of the collection pipe, so as to be separable therefrom; and a fixing hanger selectively coupled to the step of the collection pipe or the upper side of the upper cover.

Description

Sediment Sampling Device

The present invention relates to a sediment sampling device, and more particularly, to allow the diver to collect the sediment sample quickly without loss of water without disturbing the sediment sample, and to facilitate the investigation and experiment of the collected sediment sample. It relates to a sediment sampling device that can be securely placed.

Currently, dams, rivers, and coasts in Korea have accumulated sand, silt, and dead fish and shellfish, increasing environmental pollution. In order to prevent pollution and establish coastal development measures by understanding the condition of raw water as a source of water, the composition and distribution of contaminated sediments, thickness, etc., first, it is possible to accurately acquire the soil sediment soil samples in a convenient way. That is the key.

In particular, it is only possible to grasp the change of environmental pollutants from a certain point in time in the past until the sample is collected as it is in the sediment of the underwater soil sediment, so when sampling the underwater sediment, the soil layer of the depth to be investigated is leaked. It is important to get whole without this.

In order to collect underwater sediment samples from the sea, dams and lakes, people (submersibles) take the sampling pipes directly under the water and put the soil deposits in the sampling pipes, and special methods such as barges and offshore drilling vessels. There is a method to collect underwater soil sediments using equipment.

Among them, when barges or offshore drilling vessels are used, samples are collected by digging the land under water with drilling and drilling equipment.However, the sampling method using such drilling vessels is to prepare tugs and drilling vessels, anchor installation work, materials and technicians. Due to the considerable time and expense in carrying out operations such as transportation, there was a problem that can not be an effective means of investigation unless it is difficult to access the deep sea.

Most of the areas where environmental pollution surveys are conducted in Korea are mostly rivers, lakes, and coastal coasts with a depth of 50m or less, so it is more convenient for divers to enter and collect samples rather than using special heavy equipment such as barges and drilling ships. In terms of efficiency, it is much more efficient.

However, in the past, divers were not only cumbersome and time-consuming to deposit sediment soil samples in the sampler underwater, but also had difficulty in collecting the samples underwater.

In other words, to collect underwater sediment soil, a pipe sampling tube is usually used. After the sampling tube is embedded in the underwater sediment soil, the ground around the pipe is scooped up by a shovel or hand. After exposing the bottom, the bottom of the sample tube had to be carefully plugged.

However, digging the surrounding land was difficult and time-consuming, and when trying to fill the cap at the bottom of the sampling tube, there were problems such as sediment soil samples that had entered the sampling tube. It was difficult to sample soil sediment in condition.

In order to solve such a problem, the Republic of Korea Open Utility Model No. 2014-0005966, as shown in Figure 1, as a long cross-section having a circular cross-sectional shape, has a space that can be filled with soil samples inside the tube. , The upper end portion (2a) and the lower end portion (2b) of the sampling tube (2) is open, the upper stopper (3) coupled to the upper end (2a) of the sampling tube (2), and the sampling tube (2) Removable to the lower stopper 4 coupled to the lower end 2b, the nipple insertion hole 30 formed in the upper stopper 3, and the nipple 5 and the nipple 5 coupled to the nipple insertion hole 30. An underwater sediment sampler is disclosed which comprises a cap nut 6 which is securely coupled.

However, the conventional sediment sampler has a structure in which the upper cap 3 and the lower cap 4 are simply fitted to the upper end 2a and the lower end 2b of the sampling tube 2 to collect soil samples. In addition to the possibility that the upper plug (3) and the lower plug (4) can be easily separated from the sampling tube (2) in the process, the sample collection tube (2) in which the soil sample is stored to examine the soil sample is tested. There was a problem that is very difficult to settle in the tank.

Accordingly, the problem to be solved by the present invention is that the diver can quickly collect the sediment samples in the water without being disturbed and can be easily placed in the experimental tank for the investigation and experiment of the collected sediment samples. To provide a sediment sampling device.

Sediment sampling device according to the present invention for achieving the above object is to collect the sediment sample in the water, in order to investigate the sediment in the sample collection device to be placed in the water tank filled with the sample, sediment sample in the inner space When the collection tube is installed in a cylindrical shape hollow inside so that the upper circumference of the upper jaw is formed, the lower circumferential surface is provided with a fastening ring having a ring arranged radially, and the collecting tube is obtained underwater An upper cover is detachably coupled to the step by bolts and nuts so that the upper side is closed, and the upper side is opened when placed in the test tank, and the lower side is opened when the collecting tube is obtained underwater. When sediment samples are stored in the collection tube, they are separably coupled to the hook to close the lower side. When the lower cover having the fastening member and the collecting tube is obtained in the water or placed in the experimental tank, it is connected to a separate mobile equipment so that the collecting tube can be raised and lowered vertically, the step or upper cover of the collecting tube It characterized in that it comprises a fixed hook selectively coupled to.

Here, the stepped portion and the upper cover is preferably formed with a plurality of through-holes for fastening the bolt and nut and for coupling the fixing hanger.

In addition, the fastening ring is preferably installed so that a portion protrudes to the lower side of the collecting pipe.

In addition, the upper cover is preferably a faucet communicating with the inner space of the collecting pipe is installed on the upper side.

In addition, the upper cover is preferably a portion in contact with the step is sealed with silicon.

In addition, the lower cover is preferably the inner bottom surface is sealed with silicon.

In addition, when the collection tube is placed in the test tank, it is possible to further include a seating plate is fixedly seated on the upper side of the collecting tube by a separate fixing means so that the sediment sample stored in the collecting tube is not disturbed.

In addition, the seating plate is preferably the removal rope is installed on one side to facilitate removal when the collection tube is placed on the bottom of the experimental tank.

As described above, according to the present invention, since the upper and lower sides of the collecting pipe have a structure that can be opened and closed with a simple operation, the sediment sample is not disturbed when the diver collects the sample in the water, and the sediment sample is lost. As well as the effect of sealing the lower side of the collecting tube without, there is an effect that can quickly proceed the investigation and experiment of the sediment sample collected in the collecting tube in the experimental tank.

1 is an exploded perspective view showing a deposit sampler according to the prior art.

Figure 2 is an exploded perspective view showing a detailed configuration of the sediment sample collection device according to the present invention.

Figure 3 is a perspective view of the appearance when the sediment sampling device according to the present invention is used in water.

Figure 4 is a perspective view showing the appearance of the deposit sample collection device according to the present invention when used in the experimental tank.

Figures 5a to 5c is an operation diagram showing a process of taking a sample of sediment in water using the sediment sampling device according to the present invention in sequence.

6a to 6c is an operation diagram sequentially showing the process of depositing the sediment sampling device according to the present invention in the test tank in the state of depositing the deposit sample.

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

2 is an exploded perspective view showing a detailed configuration of the sediment sampling device according to the present invention, Figure 3 is a perspective view showing the appearance when the sediment sampling device according to the present invention is used in water, Figure 4 The perspective view showing the appearance of the sediment sampling device according to the present invention when used in the experimental tank is shown, Figure 5a to 5c is a sequential process of collecting the sediment sample in the water using the sediment sampling device according to the present invention 6A to 6C show an operation diagram sequentially showing a process in which the sediment sampling device according to the present invention is placed in a test tank in a state in which a deposit sample is stored.

As shown in Figures 2 to 4, the sampling device 1 according to the present invention after collecting the sediment sample intact in the river and the water of the ocean as it is without distortion, to examine and test the sediment sample, filled with water It is largely made to be settled in the experimental tank comprises a collecting tube 10, the upper cover 20, the lower cover 30, the fixed hook 40 and the seating plate (50).

Here, the collection pipe 10 is formed in a hollow cylindrical shape inside and collects and stores the sediment samples of the soil located in the bottom of the water by the combination of the upper cover 20 and the lower cover 30. At this time, if the collecting tube 10 is made of an opaque material, the sediment sample is not disturbed in the process of collecting the sediment sample in water or placed in an experimental tank, and thus there is no method of checking whether the sediment sample is intact and the collecting tube 10. The silver is preferably made of a transparent material so that the deposit sample stored in the internal space can be visually confirmed.

The collection tube 10 is a step 11 is the upper circumferential surface so that the upper cover 20 and the fixing hanger 40 can be detachably coupled by fastening the bolt (B) and the nut (N) in the upper side Thus extending outward. At this time, in the step 11, a plurality of through holes 11a are radially formed at regular intervals so as to be coupled to the upper cover 20 and the fixing hanger 40 by fastening the bolt B and the nut N. It is preferable to be.

In addition, the collecting tube 10 is provided with a ring 12 having a circular band shape on the lower circumferential surface so that the lower cover 30 can be detachably coupled to the lower side, wherein the outer side of the fastening ring 11 It is preferable that the U-shaped ring 12a for the diver to easily bind with the fastening member 31 of the lower cover 30 underwater is formed radially.

If the fastening ring 12 is located on the same line as the lower end of the collecting tube 10 or is installed at a position higher than the lower end, the diver may embed the collecting tube 10 in the bottom of the water to collect the sediment sample underwater. When pressing the collecting tube 10 there is a disadvantage that does not smoothly enter the floor. To this end, in the present invention, it is preferable that a part of the fastening ring 11 protrudes to the lower side of the collection tube 10 so that the collection tube 10 is smoothly embedded in the bottom of the water to facilitate the collection of the deposit sample.

An upper cover 20 is detachably coupled to the upper side of the collecting tube 10, preferably the step 11, by a bolt B and a nut N, and the upper cover 20 is a collecting tube ( When the 10 is obtained in the water, the upper side of the collecting tube 10 is closed in advance so that the sediment sample may be sealed and stored in the collecting tube 10, and the collecting tube 10 is disposed when the collecting tube 10 is placed in the test tank. ) Serves to open the upper side of the collecting tube 10 so that the deposit sample stored in the) can be examined and tested.

The upper cover 20 is equal to the same number as the through holes 11a formed in the step 11 so that the upper cover 20 can be fixedly coupled to the step 11 of the collecting pipe 10 by the bolt B and the nut N. A through hole 21 having a size is formed. Then, the bolt B is fastened to the nut N by passing through the through

holes

11a and 21 formed in the step 11 and the upper cover 20.

At this time, a portion of the lower side of the upper cover 20, preferably a part contacting the step 11 of the collecting tube 10 is sealed with silicon, it is preferable to completely seal the internal space of the collecting tube 10, the reason This is because the upper cover 20 is seated on the step of the collecting tube 10 and tightly coupled by the bolt (B) and the nut (N), so that a fine gap occurs due to the nature of the material and thus may not be completely sealed.

In addition, the upper cover 20 is provided with a faucet 22 communicating with the inner space of the collecting pipe 10 on the upper side, the faucet 22 to the bottom of the water when the collecting pipe 10 is obtained in water In addition to being able to smoothly descend, the sample collected in the internal space of the collecting tube 10 when the sample tube 10 is collected in the internal space of the collecting tube 10 and then lifted the collecting tube 10 embedded in the bottom of the water. Does not get out of the way without being disturbed.

That is, the lower side of the collecting pipe 10 is obtained in an open state when the collecting pipe 10 is obtained in water as shown in FIGS. 5A to 5B, so that the valve of the faucet 22 when descending to the bottom of the water When opening the water flowing into the internal space of the collecting pipe 10 is discharged to the outside through the faucet, the collecting pipe 10 can be smoothly lowered to the bottom of the water, sediment samples into the internal space of the collecting pipe 10 When the collecting pipe 10 is put on the bottom of the water to collect the water, the closing valve of the faucet 22 causes pressure in the internal space of the collecting pipe 10, so that the collecting pipe 10 embedded in the bottom of the water is opened. Even if the diver lifts, the sediment sample will not flow down the collection pipe 10.

On the other hand, the lower cover 30 is detachably coupled to the lower side of the collecting tube 10, the lower cover 30 is the sediment sample is collected when the collecting tube 10 is obtained in water to collect the sediment sample When the lower side of the collecting tube 10 is opened to be stored in the tube 10, and the deposit sample is stored in the collecting tube 10, the stored sediment sample does not escape the collecting tube 10. It serves to close the lower side.

That is, when the sediment sample is stored in the collecting tube 10 as shown in FIG. 5C, the lower part of the lower portion of the collecting tube 10 may be quickly and easily submerged in the water so as not to escape to the lower side of the collecting tube 10. It is necessary to seal with). So, the outer side of the lower cover 10 is provided with a fastening member 31 radially coupled to the ring 12a formed on the fastening ring 12 in the same shape as the fastening member used to seal the stainless steel cup, the fastening ring It is preferable to provide the same spacing and number as the ring 12a formed in (12).

Since the lower cover 30 is coupled to the lower side of the collecting tube 10 by the fastening member 31, a minute gap may occur due to the characteristics of the material, so that the lower side of the collecting tube 10 may not be completely sealed. In order to prevent the inner bottom surface of the lower cover 30, it is preferable to seal the inner space of the collection tube 10 when the sealing treatment with silicon to completely seal.

And it is provided with a fixed hook 40 that can be selectively coupled to the step 11 or the top cover 20 of the collecting pipe 10, the fixed hook 40 is the collecting pipe 10 is obtained in water or When placed in the experimental tank, the collection pipe 10 serves to be connected to a separate mobile equipment, such as a crane, a winch, so that it can be raised and lowered vertically.

That is, when the sampling tube 10 is obtained in water, the upper side of the collecting tube 10 is sealed by the upper cover 20, so that the fixed hook 40 is attached to the step 11 and the upper cover 20. After being inserted into the formed through holes (11a, 21) and fixed by the nut (N), when the collection tube 10 is settled in the experimental tank, the upper side of the collection tube 10 is opened, the fixed hook 40 is After being inserted into the through hole (11a) formed in the step 11 is to be fixed by the nut (N).

Such a fixed hook 40 is not particularly limited, but is formed in a U-shape so as not to shake in the left and right directions during the vertical movement of the collecting pipe 10 by a separate moving device, the end is to be fastened with the nut (N) Preferably, a thread is formed. That is, the fixed hook 40 can be easily connected with a separate moving device as it is formed in a U-shape, and can be vertically moved while maintaining a stable posture without biasing to either side during the vertical movement of the collecting pipe 10. There are advantages to it.

And the upper side of the collecting tube 10 is provided with a seating plate 50 which is seated on the step 11 by a separate fixing means such as a tape, the seating plate 50 is the collecting tube 10 in the test tank When settled, it serves to prevent the sediment sample stored in the collection tube 10 is disturbed by the water stored in the experimental tank.

That is, when the collection tube 10 is placed in the experimental tank, the upper side should be opened. When the upper side of the collecting tube 10 is placed in the experimental tank while the upper side of the collecting tube 10 is opened, the water stored in the experimental tank is the upper side of the sampling tube 10. Since there is a possibility that the sediment sample may be disturbed by flowing in, the upper side of the collecting pipe 10 is temporarily closed by the seating plate 50 as shown in FIGS. 6A to 6B.

At this time, as shown in Figure 6c, when the collecting tube 10 is placed in the test tank to remove the seating plate 50 to open the upper side of the collecting tube 10 can be investigated and tested the deposit sample Therefore, one side of the seating plate 50 is protruded to facilitate removal, and a removal rope 51 having a predetermined length is installed at the protruding portion.

At this time, if the removal rope 51 is not provided in the seating plate 50, there is a hassle that the diver needs to remove the seating plate 50 in order to proceed with the investigation and experiment of the deposit sample in the test tank. Therefore, it is preferable that the removal plate 51 having a sufficient length is provided on the seating plate 50 so that an operator can easily remove the seating plate 50 from outside the test tank. That is, when the operator pulls the removal rope 51 out of the test tank, the seating plate 50 fixed to the step 11 of the collecting pipe 10 by a separate fixing means is naturally separated from the upper side of the collecting pipe 10. Can be removed out of the experimental tank.

[Description of the code]

10: collection pipe

11: step

11a: through hole

12: fastening ring

12a: rings

20: top cover

21: through hole

22: faucet

30: lower cover

31: fastening member

40: fixed hanger

50: seating plate

51: removal rope

B: bolt

N: Nut

Claims

In order to examine the sediment in the water, a sample collection device for collecting the sediment sample in the water and then placed in a test tank filled with water,

A collecting tube having a fastening ring having a ring arranged radially on the upper circumferential surface of the upper circumferential surface of the cylindrical shape having an inner hollow shape so that the deposit sample can be stored in the inner space;

An upper cover detachably coupled to the step by bolts and nuts to close the upper side when the collecting tube is obtained in water and open the upper side when it is placed in the test tank;

A lower cover having a fastening member detachably coupled to the hook to open the lower side when the collecting tube is obtained in water and to close the lower side when the deposit sample is stored in the collecting tube; And

When the collection tube is obtained in the water or placed in the test tank, the hook is connected to a separate mobile equipment is selectively coupled to the step of the collection tube or the upper cover so that the collection tube can be elevated vertically; Sediment sample collection device comprising a.
The method of claim 1,

Sediment sampling device, characterized in that formed in the stepped and the upper cover a plurality of through-holes for fastening the bolt and nut and the coupling of the fixing hook.
The method of claim 1,

The fastening ring is a sediment sample collection device, characterized in that part installed so as to protrude to the lower side of the collecting tube.
The method of claim 1,

The upper cover sediment sampling device, characterized in that the faucet communicating with the inner space of the collecting pipe is installed on the upper side.
The method according to any one of claims 1 to 4,

The upper cover is sediment sampling device, characterized in that the part abutting with the step is sealed with silicon.
The method of claim 1,

The lower cover is sediment sampling device, characterized in that the inner bottom surface is sealed with silicon.
The method of claim 1,

When the collection tube is placed in the test tank, sediment sample collection further comprises a seating plate fixed and seated on the upper side of the collection tube by a separate fixing means so that the sediment sample stored in the collection tube is not disturbed. Device.
The method of claim 8,

The seating plate is a sediment sample collection device, characterized in that the removal rope is installed on one side to facilitate removal when the collection tube is placed on the bottom of the experimental tank.