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Shore-base remote underwater sediment sampling apparatus and sampling method thereof

A sampling device and sediment technology, which is applied to sampling devices, measuring devices, sampling, etc., can solve the problems of sampling danger, high sampling cost, and difficulty in sampling underwater sediments, so as to improve the stability of use, improve sampling efficiency, The effect of avoiding sample loss

Active Publication Date: 2018-08-24
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of difficult sampling, dangerous sampling and high sampling cost of underwater sediments in waters far from the river bank, and propose a bank-based remote underwater sediment sampling device and sampling method thereof that are convenient for sampling and easy to operate

Method used

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  • Shore-base remote underwater sediment sampling apparatus and sampling method thereof
  • Shore-base remote underwater sediment sampling apparatus and sampling method thereof
  • Shore-base remote underwater sediment sampling apparatus and sampling method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1 A shore-based remote underwater sediment sampling device according to the present invention includes:

[0039] The sampler 1 is used to collect shore-based remote underwater sediments and surface after collecting the underwater sediments;

[0040]The ejection device 2 is locked and connected with the sampler 1, and is used to eject the sampler inserted into the water body away from the shore;

[0041] The air supply device 3, whose air outlet pipe communicates with the air inlet pipeline of the sampler 1, is used to drive the sampler to grab underwater sediments.

[0042] The sampler 1 includes a cutting head 11 for grabbing underwater sediments, a sampling tube 12 for accommodating the captured underwater sediments, and a sampling tube 12 for sealing the tail end of the sampling tube and driving the entire sampler to surface. The tail cap 13, the cutting head 11 and the tail cap 13 are respectively detachably installed at both ends of the sampling tube, w...

Embodiment 2

[0051] Embodiment 2 In the sampling device of a shore-based remote underwater sediment sampler according to the present invention: the inner side of the upper part of the cutting head housing 111 of the cutting head 11 is tapped with an internal thread, and the middle and upper inner cavity is provided with a return spring 112, The upper end of the return spring 112 is fixed to the cutting head housing 111, and the lower end is fixed to the slip ring 113. The lower end of the slip ring 113 is connected to the closing flap 114 through a hinge, and the closing flap slide rail 116 is arranged inside the closing flap, and the closing flap sliding rail 116 is connected to the cutting head. The closed petal annular hole 117 dug inside the bottom of the housing cooperates, and the closed petal 114 can slide out through the closed petal annular hole 117; the outer edge of the slip ring 113 is in contact with the switch piece 1151, and the lower end of the switch piece 1151 is fixed to t...

Embodiment 3

[0053] Embodiment 3 A kind of sampling method using the shore-based remote underwater sediment sampling device described in embodiment 1 or 2 to carry out, comprises the following steps:

[0054] 1) Tighten the cutting head 11 and the tail cap 13 respectively on the head and tail ends of the sampling pipe 12, connect the air inlet of the air supply device 3 with the air inlet pipeline of the cutting head 11, and connect the air outlet of the cutting head 11 with the air inlet of the cutting head 11. The air bag air inlet pipeline of the tail cover 13 is connected, and the sampler 1 is assembled;

[0055] 2) Insert the sampler 1 into the ejection cylinder 21, make the fixing ring 41 outside the lower end of the tail cover 13 snap into the square hole groove 211 of the ejection cylinder 21, and insert the fixing column 1321 at the top of the tail cover 13 into the ejection spring 23 In the empty space, complete the locking of the sampler and the ejection device 2;

[0056] 3) T...

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Abstract

A shore-base remote underwater sediment sampling apparatus and a sampling method thereof are provided. The sampling apparatus comprises: a sampling device for collecting shore-base remote underwater sediment and floating on the surface after the collection; an ejection device in locking connection with the sampling device and used for ejecting the sampling device inserted therein into water far away from a shore; a gas supply device having an exhaust pipe communicated with an intake port pipeline of the sampling device, wherein the gas supply device is used for driving the sampling device to grab underwater sediment. The sampling method comprises: allowing the sampling device to collect underwater sediment, activating a gas circuit control unit, allowing a gas control sliding ring to pusha seal segment to slide out of a seal segment circular slot in the lower portion, and sealing a sampling head; increasing the size of a balloon, pushing a spherical seal cover of a tail cover to close, increasing buoyancy to drive the sampling device to leave the sediment and float to the surface, and pulling a piston cylinder intake pipe to reclaim the sampling device. The sampling apparatus andmethod have the advantage that the problems are solved that, for instance, sampling of underwater sediment in wide water areas is difficult and dangerous and has high cost.

Description

technical field [0001] The invention relates to a shore-based remote underwater sediment sampling device and a sampling method thereof. Background technique [0002] Underwater sediment mainly refers to the solid matter that enters the water body in various forms and finally deposits at the bottom of the water body under the action of flocculation and gravity. The study of underwater sediment is important for the study of river hydrology, biodiversity, and water protection. effect. [0003] It is relatively easy to collect underwater sediment near the river bank, and it can be realized by using a piston-type columnar sediment sampler or a mud grab. However, for underwater sediments far away from the river bank, the difficulty of sampling is greatly increased, and it is impossible to directly use piston-type columnar sediment samplers or mud grabs to collect. Generally, a sampling ship is required to sail to a designated location first, and then a traditional sampler is use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/08
CPCG01N1/08G01N2001/085Y02A90/30
Inventor 何崭飞张庆莹薛娜娜韦震冯婕妮潘响亮
Owner ZHEJIANG UNIV OF TECH
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