Deep water pipeline composite polyurethane elastomer heat insulation layer casting molding device

A technology for composite polyurethane and deep-water pipelines, which is applied in the field of polyurethane elastomer insulation layer pouring and molding devices, which can solve the problems of poor quality of pouring products and unreasonable pouring and molding operations of polyurethane insulation layers, so as to reduce time and cost and reduce processing difficulty , the effect of improving the quality
CN102303386AActive Publication Date: 2012-01-04CHINA NAT OFFSHORE OIL CORP +2
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA NAT OFFSHORE OIL CORP
Publication Date
2012-01-04

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Abstract

The invention discloses a deep water pipeline composite polyurethane elastomer heat insulation layer casting molding device. A subsection machining and integral assembly mode is adopted in a die, heating temperature control devices are arranged corresponding to subsection assemblies in subsections, and heating oil passages are arranged opposite; a positioning structure and a sealing structure arearranged in the parting surface of the die; and the die is provided with a die opening device, a die closing and an inclination device controlled by a hydraulic system. The device realizes mechanicaloperation of casting molding of a product, and has practical structure and strong operability; by adopting subsection machining in the die, the machining difficulty and the machining cost are reduced, and the machining precision and the machining quality are improved; and meanwhile, three sets of heating devices are used corresponding to three sections of assemblies, so that the heating temperature difference is reduced, the quality of the cast product is improved, automatic control of the temperature of the casting die can be realized, the heat insulation time of the polyurethane heat insulation layer in the die is shortened, and the service efficiency of the casting die is improved.
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Description

technical field

[0001] The invention relates to a pouring molding die, in particular to a pouring molding device for a polyurethane elastomer insulation layer used in a deep-water seabed oil (gas) transmission pipeline. Background technique

[0002] Most of the oil and gas extracted from offshore oil and gas fields are transferred to onshore processing through pipelines and delivered to users separately, except for a few that are directly shipped out at sea. With the deepening of offshore oil and gas development, the role of offshore pipelines is becoming more and more important.

[0003] The deep-water subsea oil (gas) transmission pipeline is laid in the ocean cold water environment and needs to be able to withstand the seawater static pressure of a certain water depth. Some crude oils with higher consistency (such as crude oil with high freezing point such as wax and colloid) will gradually precipitate high-molecular-weight and low-molecular-weight waxes when the oil tem...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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