Anti-pollution anti-pressure seal assembly of seabed tubular sampling instrument

A technology of sealing components and samplers, which is applied in the direction of shaft seals, sampling devices, engine components, etc., can solve the problems of sample falling off, and achieve the effects of improving the influence of gravity, saving space and mechanism settings

Inactive Publication Date: 2009-08-12
SECOND INST OF OCEANOGRAPHY MNR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When the mechanical structure pulls the sediment sample into the pressurized cabin and seals it, the inevitable strong impact will vibrate the sediment sample, and sometimes the sample will fall off

Method used

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  • Anti-pollution anti-pressure seal assembly of seabed tubular sampling instrument
  • Anti-pollution anti-pressure seal assembly of seabed tubular sampling instrument

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Embodiment Construction

[0024] In conjunction with the accompanying drawings, the present invention will be described in detail below through specific embodiments.

[0025] The anti-pollution and anti-pressure sealing assembly of the submarine tubular sampler in this specific embodiment includes a round tubular sampling tube 101, and a pressure-holding cylinder 1 is sheathed outside the sampling tube 101, and the pressure-holding cylinder 1 communicates with an accumulator.

[0026] One end flange of the pressure-holding cylinder 1 is connected to the valve body 2 of the ball valve through bolts; two ball valve spools 3 are arranged in the valve body 2, and each ball valve spool 3 has an independent valve stem 4 and a valve stem driving device 5. The valve body 2 of the ball valve is connected with the valve rod driving device 5 through the valve rod 4 . A frame structure 6 is arranged between the ball valve body 2 and the valve stem driving device 5, and the frame structure 6 is respectively connec...

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Abstract

The invention relates to a sealing component and aims at providing an antipollution pressure-resistant sealing component of a benthonic tubular sampler. The component comprises a tubular sampling tube; the outside of the sampling tube is sleeved with a pressure maintaining cylinder body; a flange at the tail end of the pressure maintaining cylinder body is connected with a valve body of a ball valve; the valve body of the ball valve is connected with a valve rod driving device through a valve rod; the valve rod driving device consists of a double rack gear mechanism; a hydraulic cylinder for supplying power is connected with a rack; a gear and the valve rod are coaxial; and the rack and the gear are engaged with each other. The invention provides the valve which has a plurality of spheres and is provided with a driving mechanism respectively, realizes the pressure-resistant antipollution function, improves the gravity influence between two spheres and achieves the action of double insurance on the pressure maintaining of the sample; as a lining piston is used as the sealing component at one end of the pressure maintaining cylinder body, the space and the mechanism setting are saved; simultaneously, after the sampling is completed, the sealing component can make the sample directly enter the pressure maintaining cylinder for pressure maintaining and can also solve the problem that the sample is shaken to fall off after the sampling.

Description

technical field [0001] The invention relates to a sealing assembly, more specifically to an anti-pollution and pressure-resistant sealing assembly for a submarine tubular sampler. Background technique [0002] For the study of seabed organisms, the most commonly used method is to retrieve samples from the seabed and carry out research on a scientific research vessel. The way the mechanical release mechanism drives the sampling tube for sampling is to use the mechanical structure design of the equipment to allow the sampling tube to be directly inserted into the sediment for sampling under the action of gravity, which is passive sampling. [0003] At present, among the shipborne sediment sampling equipment in our country, the equipment that can obtain higher quality sediment samples is the multi-tube sampler and sediment fidelity sampler. Because the multi-tube sampler cannot be fidelity, the sediment fidelity sampler can be used as a reference. [0004] After the sampling ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/12F16K5/06F16K31/53F16K41/00
Inventor 钱鑫炎杨俊毅李世伦陈家旺王峰顾临怡周博
Owner SECOND INST OF OCEANOGRAPHY MNR
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