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Umbilical cable floating body

An umbilical cable and floating body technology, applied in the field of umbilical cable floating body, can solve the problems of poor balance, low reliability, difficult operation, etc., and achieve the effects of low density, improved stability and reduced resistance

Active Publication Date: 2015-06-17
MARINE CHEM RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the defects of difficult operation, poor balance, and low reliability caused by the above-mentioned existing zero-buoyancy implementation scheme of the umbilical cable; to provide an umbilical cord with convenient operation, excellent structural performance of the floating body, and reduced damage to the umbilical cable cable buoy

Method used

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  • Umbilical cable floating body

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The body uses a density of 0.42g / cm 3 The main body of the umbilical cable buoyant body is prepared with lightweight pressure-resistant buoyancy material, and the material properties are shown in Table 1

[0030] Table I

[0031] project unit performance density g / cm 3 0.42 Uniaxial compressive strength MPa 15 bulk modulus MPa 1050 hydrostatic pressure MPa 6 Water absorption (6 MPa 24 hours) % 0.8

[0032] refer to figure 1 , the body of the floating body is machined into an ellipsoid, the long axis of the ellipsoid is 600mm, the short axis is 340mm, the external chamfer of the floating body is R8, the internal chamfer is R3, and the internal groove adopts a straight hole in the middle and steps at both ends. The structure of the hole, the umbilical cable with a diameter of 9-13mm can pass through it, and the V-shaped rubber body is fixed at both ends of the groove according to the size of the umbilical cable. ...

Embodiment 2

[0034] The body uses a density of 0.54g / cm 3 The main body of the umbilical cable buoyant body is prepared with light-weight pressure-resistant buoyancy material, and the material properties are shown in Table 2

[0035] Table II

[0036] project unit performance density g / cm 3 0.54 Uniaxial compressive strength MPa 45 bulk modulus MPa 1800 hydrostatic pressure MPa 45 Water absorption (45 MPa 24 hours) % 0.6

[0037] refer to figure 1 , the body of the floating body is machined into an ellipsoid, the long axis of the ellipsoid is 600mm, the short axis is 340mm, the external chamfer of the floating body is R8, the internal chamfer is R3, and the internal groove adopts a straight hole in the middle and steps at both ends. The structure of the hole, the umbilical cable with a diameter of 9-13mm can pass through it, and the V-shaped rubber body is fixed at both ends of the groove according to the size of the umbilical cab...

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Abstract

The invention relates to an umbilical cable floating body, which comprises an elliptical floating body, a hinge, rubber bodies and a hasp. The floating body is made of a machinable solid buoyance material, is an ellipsoid in shape, and consists of two symmetrical semielliptical floating bodies; a slot is formed in the floating body according to the size requirement of an umbilical cable, and umbilical cables are fastened to the floating bodies through the rubber bodies; one sides of the floating bodies are connected into a whole through the hinge, and the other sides of the floating bodies are opened and closed through the hasp; and the surfaces of the floating bodies are sprayed with water resistant coatings. The umbilical cable floating body is simple in structure, can ensure that cables float on water, and can facilitate the examination and the maintenance of the cables to reduce maintenance cost.

Description

technical field [0001] The invention relates to a floating body, in particular to an umbilical cord floating body of processable solid buoyancy material. Background technique [0002] In deep sea oil and gas exploration, the safety of deep sea umbilical cables connecting surface floating devices and subsea equipment is of paramount importance. The umbilical cable mainly plays the role of transporting chemical agents, hydraulic fluid, electricity and signals, and is the lifeline of the offshore oil and gas production system. The umbilical cable is a combination of electrical cables (power cables or signal cables), optical cables (single-mode or multi-mode optical cables), hydraulic or chemical agent pipes (steel pipes or hoses). In order to ensure the smooth connection between the subsea equipment and the surface floating device, the umbilical cable is required to be zero buoyancy. [0003] In the past, the zero buoyancy of the umbilical was achieved by bundling buoys. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B38/00H01B11/22
Inventor 梁忠旭陈先刘晓洁周媛吴则华汪杰
Owner MARINE CHEM RES INST CO LTD
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