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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

Active Publication Date: 2012-01-04
CHINA NAT OFFSHORE OIL CORP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention aims to solve the technical problems of unreasonable pouring and molding operation of the existing polyurethane insulation layer and poor quality of poured products, overcome many technical obstacles, and provide a pouring and molding device for deep-water pipeline composite polyurethane elastomer insulation layer

Method used

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

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Embodiment Construction

[0043] This embodiment discloses a deep-water pipeline composite polyurethane elastomer insulation layer pouring molding device, which consists of a mold, a mold opening device 3, a mold clamping device 4, a rotating and tilting support 6, a base 7, an inclination control device 5, a hydraulic station 9, a heating Temperature control device 10 etc. are formed.

[0044] Such as figure 1 As shown, the total length of the mold in this embodiment is 12.5 meters, and it is a split semicircular mold made up of an upper mold 1 and a lower mold 2. The mold is made of mold steel, and the outside of the mold steel is coated with polyurethane insulation material, and the outside of the polyurethane insulation layer is coated with stainless steel plate.

[0045] Such as figure 2 As shown, the mold is uniformly composed of three sections in the axial direction, every two sections of upper mold 1 components are connected by flange 17, and every two sections of lower mold 2 components are...

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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.

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

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C39/02B29C39/26B29C39/22B29C39/38B29C39/44B29C33/28
Inventor 张晓灵杜宝银吴文通蒋晓斌孔瑞林杨加栋曹令福曹静李清平庄传晶
Owner CHINA NAT OFFSHORE OIL CORP
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