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Partial heating and insulation device for crude oil cold transportation pipeline passing through the frozen layer vertically

A technology for conveying pipelines, heating and heat preservation, applied to pipeline systems, gas/liquid distribution and storage, mechanical equipment, etc., to achieve the effects of time-saving maintenance, smooth oil transportation, and high heat preservation performance

Inactive Publication Date: 2011-12-14
张维新
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The waste and losses in between are striking

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  • Partial heating and insulation device for crude oil cold transportation pipeline passing through the frozen layer vertically
  • Partial heating and insulation device for crude oil cold transportation pipeline passing through the frozen layer vertically
  • Partial heating and insulation device for crude oil cold transportation pipeline passing through the frozen layer vertically

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Embodiment Construction

[0011] Embodiments of the present invention are given below in conjunction with the accompanying drawings.

[0012] 1. Making figure 1 , figure 2 The electrothermal layer 1 shown.

[0013] Get 10 parts by weight of conductive carbon black, 10 parts by weight of nano-graphite powder, 15 parts by weight of latex rubber, 2 parts by weight of paraffin wax, and 2 parts by weight of liquid coumarone, and mix uniformly at 50kg / cm 2 Pressure pressed into thin slices with a thickness of 1-2mm, cut into electric heating strips, 1-1. The length of the electric heating strip is determined according to the circumference of the oil pipeline, and the electric heating strip is distributed according to the length of the oil pipeline to be kept warm and the required power. After connecting the electrodes 1-2, press and seal with polyurethane film 1-3, and the surface of polyurethane is coated with aluminum film 1-4 , forming a heating sheet, attaching thermal insulation material 1-5 on one ...

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Abstract

A heating and heat preservation device for a crude oil cold transportation pipeline passing through the frozen layer vertically on the ground, including an electric heating layer and a heat preservation layer. After the sheet surrounds the pipe, there are rope rings on both sides facing each other, and the rope is passed around the rope ring to tighten the electric heating sheet on the pipe; 2. The insulation layer is polystyrene insulation with one side axially cut There are uniformly distributed rope rings fixed on both sides of the slit, and the ropes that tighten the insulation layer on the heating layer are threaded on the rope rings; The isolation cylinder has an upper cover that seals the heat preservation device in the cylinder. The positive effects of using the invention are: the heat energy utilization rate is increased by more than 40%, the utility model is durable, has high thermal insulation performance, and ensures smooth oil delivery. Moreover, the assembly, maintenance and replacement are convenient, time-saving and labor-saving.

Description

technical field [0001] The invention belongs to the field of petroleum pipeline transportation, and in particular relates to heat preservation of oil well pipelines. Background technique [0002] For many years, in order to keep the oil pipelines laid below the ground in oilfields in cold regions unobstructed, the method of heating water through a boiler and then heating the oil pipelines with two hot water pipes parallel to the oil pipelines is used. Although the above-mentioned device maintains the smoothness of the oil pipe, the equipment investment and daily consumption are relatively large, and a special boiler and a large amount of water pipes are required to continuously consume fuel. In recent years, there has been a plan for cold crude oil transportation, that is, to bury the oil pipeline deep under the frozen layer of 1.8-2m on the ground, use the ground temperature to transport oil, remove the heating water pipe, and save equipment investment and energy consumptio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17D5/00F17D1/18
Inventor 张维新
Owner 张维新
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