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Novel suspended counterweight reservoir sediment dry bulk density sampling system

A sampling system and sediment technology, which are applied in the field of new type suspended counterweight reservoir sediment dry bulk density sampling system, can solve the problems of low sample fidelity, uncontrollable sediment sampler, high sampling accuracy, and improve drilling. Efficiency, easy to take out, and the effect of reducing the difficulty of operation

Inactive Publication Date: 2020-01-14
CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing sediment sampler is uncontrollable and the sample fidelity is not high, and propose a new type of suspended counterweight reservoir sediment dry bulk density sampling system. A battery is installed inside the sampler as a power source, and a liquid level sensor and a programmable controller are added to jointly control the opening of the motor after reducing the cables, without manual operation. The disturbance of the sample entering the sampling cylinder is small, and the sampling accuracy is high

Method used

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  • Novel suspended counterweight reservoir sediment dry bulk density sampling system
  • Novel suspended counterweight reservoir sediment dry bulk density sampling system
  • Novel suspended counterweight reservoir sediment dry bulk density sampling system

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Embodiment Construction

[0032] A novel steel cable suspended counterweight sediment sampling system of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0033] The working principle of the device proposed by the present invention is as follows: figure 1 As shown, the whole sampling system is suspended by releasing a steel cable from the hoist on the survey ship 1, and the support frame 4 and the additional counterweight 3 are clamped on the sampler 2, and when the frame 4 touches the sediment layer 5, it will contact with the sampler 2 Separated, the additional counterweight 3 follows the sampler 2 into the drill.

[0034] Please also refer to figure 2 One embodiment of the novel steel cable suspended counterweight sludge sampling system of the present invention includes a sampler 2, a support frame 4 and an additional counterweight 3, and the sampler 2 includes a drive cylinder, a sampling cylinder, and a drill bit.

[0035] T...

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Abstract

The invention provides a novel suspended counterweight reservoir sediment dry bulk density sampling system which comprises a sampler, a support frame and an additional counterweight. The support frameand the additional counterweight are fixed on the sampler. The sampler is composed of a driving cylinder, a sampling cylinder and a drill bit which are connected in sequence; and the upper and lowerparts of the driving cylinder are sealed. The driving cylinder includes a cylinder body, a control system, a storage battery, a chain hammer drilling system, wherein the control system, the storage battery, and the chain hammer drilling system are arranged in the cylinder body. A sealing device and triggering mechanism for triggering the sealing device to act are arranged in the drill bit. The control system of the driving cylinder includes a liquid level sensor and a programmable logic controller; the programmable logic controller controls the hammering drilling system to act according to thedepth change sensed by the liquid level sensor so as to drive the sampler to drill. According to the invention, no deepwater cable needs to be put down; the storage battery is loaded in the sampler to serve as a power supply, so that cables are reduced; the liquid level sensor and the programmable logic controller are added to control turning on of the motor jointly; and since the sampler is sealed by using a deflection piece type sealing mode, the disturbance to the sample entering the sampling cylinder in the sampling process is low and the sampling precision is high.

Description

technical field [0001] The invention relates to the technical field of deep-water silt sampling in reservoirs, in particular to a novel sampling system for dry bulk density of silt with suspended counterweights. Background technique [0002] In the reservoir sediment problem, the study of the basic characteristics of the sediment is particularly important. The dry bulk density of the sediment is an important physical parameter, which affects the conversion of the volume and weight of the sediment, the change of the volume of the fine-grained sediment after compaction, etc.; The dry bulk density is directly related to the calculation of the reservoir siltation volume, and the changes of nitrogen, phosphorus and other pollutants attached to the sediment are closely related to the water ecology of the reservoir, all of which need to be analyzed through the silt. [0003] Studying dry bulk density characteristics is an important way to study water ecology and reservoir siltation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/08G01N1/10G05B19/05
CPCG01N1/08G01N1/10G01N2001/1031G05B19/05
Inventor 杨文俊李成浩胡兴娥金峰王海宫平刘亮毛红梅束家龙王兴奎
Owner CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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