A vertical one-way valve of three-plate diversion aluminum alloy with external thread joint

Abstract

The invention relates to a special valve for an offshore oil drilling platform, a vertical one-way valve of an externally threaded three-plate guide aluminum alloy, which includes an externally threaded valve body, an upper guide, a pair of half-open cylinders, a movable valve core, and a lower guide. Fluid and taper hole glands arranged symmetrically up and down, the thickness of the single plate for positioning the lower three plates is 6 to 7 mm, between the sealing surface of the upper cavity of the moving valve core and the sealing surface of the lower cavity, a pair of half-open cylinders are fixed in a closed fit A closed annular cavity is formed, so that the overall specific gravity of the moving valve core is between the specific gravity of sea water and the specific gravity of oil, and it can move with the flow direction of the medium. It is a one-way valve that does not need to consume any additional energy during the whole work; the inside of the valve body There are no intermediate objects such as springs that may cause large resistance losses, and are especially suitable for use in mucus or torrent pipelines; it avoids accidental failures caused by the bias or failure of the damping spring that cannot withstand the torrent impact, prolongs the service life, and directly Benefits and indirect benefits are objective.

Description

technical field

[0001] The invention relates to a special valve for an offshore oil drilling platform, in particular to an externally threaded joint three-plate guide aluminum alloy vertical one-way valve without any hindering parts such as springs. Background technique

[0002] Following the discovery of a large oil field in Venezuela in 1920 by using a wooden platform to drill wells in Lake Maracaibo, the Soviet Union successfully conducted offshore drilling with a trestle near the Baku oil field in the Caspian Sea in 1922. After 1936, the United States began to drill the first deep well in the Gulf of Mexico. In 1938, the world's earliest offshore oil field was built. From the 1940s to the 1960s, with the development of welding technology and the steel industry, drilling devices such as steel fixed platforms, sitting-bottom platforms, and jack-up platforms appeared one after another, expanding offshore oil and gas exploration to sea areas with a water depth of 30 meters. ...

Examples

Embodiment Construction

[0028] In the following, the present invention will be further explained with embodiments in conjunction with the drawings:

[0029] figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 with Figure 7 Among them, a three-plate diversion aluminum alloy vertical one-way valve with external threaded joints, including an external threaded valve body 50, an upper fluid guide 30, a pair of semi-open cylinders 60, a movable valve core 70, a lower fluid guide 80 and a symmetrical arrangement The upper and lower ends of the outer circle of the outer threaded valve body 50 are provided with external threads 55, and the inner circular through hole 57 of the outer threaded valve body 50 has upper and lower step holes 53 and The lower step hole 58, the upper end of the upper step hole 53 and the lower end of the lower step hole 58 each have a fastening inner screw hole 54; the plane end of the upper fluid guide 30 is fixedly connected to the upper cylinder 32, Below the cylinde...

technical field

[0001] The invention relates to a special valve for an offshore oil drilling platform, in particular to an externally threaded joint three-plate guide aluminum alloy vertical one-way valve without any hindering parts such as springs. Background technique

[0002] Following the discovery of a large oil field in Venezuela in 1920 by using a wooden platform to drill wells in Lake Maracaibo, the Soviet Union successfully conducted offshore drilling with a trestle near the Baku oil field in the Caspian Sea in 1922. After 1936, the United States began to drill the first deep well in the Gulf of Mexico. In 1938, the world's earliest offshore oil field was built. From the 1940s to the 1960s, with the development of welding technology and the steel industry, drilling devices such as steel fixed platforms, sitting-bottom platforms, and jack-up platforms appeared one after another, expanding offshore oil and gas exploration to sea areas with a water depth of 30 meters. ...

Examples

Embodiment Construction

[0028] In the following, the present invention will be further explained with embodiments in conjunction with the drawings:

[0029] figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 with Figure 7 Among them, a three-plate diversion aluminum alloy vertical one-way valve with external threaded joints, including an external threaded valve body 50, an upper fluid guide 30, a pair of semi-open cylinders 60, a movable valve core 70, a lower fluid guide 80 and a symmetrical arrangement The upper and lower ends of the outer circle of the outer threaded valve body 50 are provided with external threads 55, and the inner circular through hole 57 of the outer threaded valve body 50 has upper and lower step holes 53 and The lower step hole 58, the upper end of the upper step hole 53 and the lower end of the lower step hole 58 each have a fastening inner screw hole 54; the plane end of the upper fluid guide 30 is fixedly connected to the upper cylinder 32, Below the cylinde...

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