A kind of underwater fluid collection valve
A fluid and valve sleeve technology, which is applied in the field of underwater fluid collection valves, can solve the problems of tightness defects, difficult processing of collection valves, and high difficulty in operation, so as to reduce performance degradation, reduce metal sealing contact surface area, and reduce operation. effect of difficulty
Inactive Publication Date: 2017-12-15
TONGJI UNIV
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Problems solved by technology
[0003] The purpose of the present invention is to provide a pressure-preserving and gas-retaining underwater fluid collection method to overcome the problems of sealing defects, high difficulty in operation and difficult processing of the collection valve itself caused by the structural characteristics of the collection valve itself in the prior art. valve
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[0034] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.
[0035] Such as figure 1 As shown, a structural schematic diagram of a hammer-shaped underwater fluid collection valve according to the present invention.
[0036] An underwater fluid collection valve, comprising telescopic push handle 1, driving force piston cylinder 2, piston rod 3, piston seal one 4, piston seal two 5, driving force piston cylinder seal 6, cut-off spring 7, spring guide Column 8, outer valve sleeve 9, valve core big end seal 10, valve core small end seal 11, valve core 12, inner valve sleeve 13, inner valve sleeve front end seal 14, inner valve sleeve rear end seal 15 and Spring bottom bracket cover 16.
[0037] Such as figure 1 and figure 2 As shown, the telescopic push handle 1 is a structure in which two cylinders with different diameters are coaxially connected, wherein the central axis of the small diameter cylinder...
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The invention relates to the field of marine engineering equipment, in particular to an underwater fluid collection valve. An inner valve sleeve of the collection valve is arranged in an inner cavity of an outer valve sleeve in a sleeved mode. A valve element and an elastic component are mounted in an inner cavity of the inner valve sleeve. One end of the valve element is located in the communicating position of the inner cavity of the inner valve sleeve and a sample discharge hole of the outer valve sleeve. The other end of the valve element makes contact with the elastic component. Through elastic force generated by deformation of the elastic component, the valve element and the sample discharge hole of the outer valve sleeve squeeze tightly and are sealed. A drive power component is connected to the outer side of the outer valve sleeve. Drive power generated by the drive power component is transmitted to the inner cavity of the inner valve sleeve through a drive power transmission hole of the outer valve sleeve and a drive power transmission hole of the inner valve sleeve sequentially, so that the valve element is made to move in the direction in which the elastic component is further compressed and deformed and separate from the sample discharge hole, and collected fluid samples enter the inner cavity of the inner valve sleeve via a sample inlet hole of the outer valve sleeve and a sample inlet hole of the inner valve sleeve sequentially, and then flow out of the sample discharge hole of the outer valve sleeve to reach a sample collecting container. While pressure and gas holding collection of underwater fluid is achieved, operational reliability and repeatability of product manufacturing are improved, and the operation difficulty of underwater work is reduced.
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] The currently known fluid collection valves are divided into two types: pressure-holding and gas-holding and non-pressure-holding and gas-holding. Most of them are used in the deep sea of about 3,000 meters, and are operated and sampled by operating submersibles such as underwater operating robots. Among them, the non-pressure-holding and gas-holding collection valve is a pressure-equalizing shut-off valve, whose function is similar to that of an ordinary cut-off valve, while the pressure-holding and gas-holding collection valve has a large unbalanced pressure in the internal and external environment of the collection valve during pressure holding. , and the gas in the water sample is not allowed to separate out, so the collection is difficult. Most of the existing pressure-preserving and gas-retain...
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IPC IPC(8): F16K1/38F16K27/02F16K31/14
CPCF16K1/38F16K27/0254F16K27/0281F16K31/14
Inventor 吴正伟周怀阳季福武
Owner TONGJI UNIV