A kind of underwater fluid collection valve

Abstract

The invention relates to the field of marine engineering equipment, in particular to a underwater fluid collecting valve. The underwater fluid collecting valve comprises a ball valve module, a transmission module and a bracket for fixing the two; the ball valve module includes a ball valve shell, a sealing ball, a sample inlet pipe and a sample outlet pipe; the sealing ball is positioned in an inner cavity of the ball valve shell, and has a sample through hole for penetrating through a ball body; the sample inlet pipe and the sample outlet pipe are inserted in the inner cavity from two opposite ends of the ball valve shell; the two ends of the sample through hole are respectively aligned to or staggered from one ends, positioned in the inner cavity of the ball valve shell, of the sample inlet pipe and the sample outlet pipe to realize opening and closing of the ball valve module; the transmission module includes a transmission rod, a crank and a rotating rod; one end of the rotating rod is mounted in a rotating rod mounting hole on the spherical surface of the sealing ball, and the other end is connected with one end of the crank by penetrating through the ball valve shell; the other end of the crank is connected with the transmission rod; and the transmission rod moves to drive the crank, the rotating rod and the sealing ball to axially rotate along the center of the rotating rod in sequence. The underwater fluid collecting valve realizes fidelity collection of submarine hydrothermal solution, and greatly improves the sealing reliability.

Description

technical field [0001] The invention relates to the field of marine engineering equipment, in particular to an underwater fluid collection valve. Background technique [0002] Hydrothermal fluids in the deep seabed have extremely important economic and scientific value, and hydrothermal fluids are characterized by high pressure, high temperature and strong corrosiveness, and there are a large amount of gas in them. How to collect high-quality hydrothermal samples is particularly important , the role of the hydrothermal sampler is to collect fidelity hydrothermal samples from the seabed, and the component that realizes this function is the collection valve. At present, the more representative structure of the collection valve adopts a pressure-balanced valve core, which is sealed by metal extrusion, but this structure requires very high machining accuracy in practice, and its reliability is not high, especially at low temperatures. The possibility of gas leakage in the liqui...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an underwater fluid collection valve that can be used to collect seabed hydrothermal fluid in order to overcome the problem of sealing defects caused by the structural characteristics of the collection valve itself in the prior art

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