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Pipeline for LNG gasification pressure regulating measuring skid-mount package

A technology for metering skids and pipelines, which is applied in pipeline protection, pipeline anti-corrosion/rust protection, pipeline damage/wear prevention, etc. It can solve the problems of short service life, high maintenance cost, poor corrosion resistance and oxidation resistance of pipelines, etc. Achieve the effects of improving compatibility, increasing anti-aging and improving anti-corrosion performance

Inactive Publication Date: 2020-05-19
无锡爱尔拓燃气技术设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous expansion of social needs, energy problems have become more and more prominent. With the development and application of natural gas, the problem of energy shortage has been alleviated. Natural gas equipment is becoming more and more abundant, LNG gasification and pressure regulation metering skid is one of them, but the pipelines used in the current LNG gasification and pressure regulation metering skid have poor corrosion and oxidation resistance, resulting in LNG gasification and pressure regulation Metering skids have problems such as short service life and high maintenance costs

Method used

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  • Pipeline for LNG gasification pressure regulating measuring skid-mount package
  • Pipeline for LNG gasification pressure regulating measuring skid-mount package
  • Pipeline for LNG gasification pressure regulating measuring skid-mount package

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A pipeline for LNG gasification pressure regulation and metering prying, the pipeline includes a steel pipe and an anti-corrosion layer arranged on the steel pipe;

[0038] In parts by weight, the anti-corrosion layer includes the following components:

[0039]

[0040] The number average molecular weight of polyoxymethylene resin is 12000g / mol; the number average molecular weight of polyurethane resin is 8500g / mol; the number average molecular weight of styrene-isoprene copolymer is 4000g / mol; tungsten carbide, scandium oxide, vanadium boride The particle size of nickel phosphate and tantalum boride is 50nm;

[0041] Antioxidants include 35 wt% 4-methyl-1,3-dioxan-2-one, 25 wt% 2-mercaptobenzothiazole, 40 wt% 2,6-di-tert-butyl-4-methylphenol.

Embodiment 2

[0043] A pipeline for LNG gasification pressure regulation and metering prying, the pipeline includes a steel pipe and an anti-corrosion layer arranged on the steel pipe;

[0044] In parts by weight, the anti-corrosion layer includes the following components:

[0045]

[0046] The number average molecular weight of polyoxymethylene resin is 14000g / mol; the number average molecular weight of polyurethane resin is 8600g / mol; the number average molecular weight of styrene-isoprene copolymer is 4500g / mol; tungsten carbide, scandium oxide, vanadium boride The particle size of nickel phosphate and tantalum boride is 60nm; antioxidants include 37wt% 4-methyl-1,3-dioxan-2-one, 22wt% 2-mercaptobenzothiazole, 41wt% 2, 6-di-tert-butyl-4-methylphenol.

Embodiment 3

[0048] A pipeline for LNG gasification pressure regulation and metering prying, the pipeline includes a steel pipe and an anti-corrosion layer arranged on the steel pipe;

[0049] In parts by weight, the anti-corrosion layer includes the following components:

[0050]

[0051] The number average molecular weight of polyoxymethylene resin is 16000g / mol; the number average molecular weight of polyurethane resin is 9000g / mol; the number average molecular weight of styrene-isoprene copolymer is 5000g / mol; tungsten carbide, scandium oxide, vanadium boride The particle size of nickel phosphate and tantalum boride is 70nm; antioxidants include 40wt% 4-methyl-1,3-dioxane-2-one, 20wt% 2-mercaptobenzothiazole, 40wt% 2, 6-di-tert-butyl-4-methylphenol.

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Abstract

The invention discloses a pipeline for an LNG gasification pressure regulating measuring skid-mount package. The pipeline comprises a steel pipe and an anti-corrosion layer arranged on the steel pipe.The anti-corrosion layer comprises the following components 30-35 parts by weight of polyoxymethylene resin, 15-17 parts by weight of polyurethane resin, 3-5 parts by weight of (methyl) acrylic 3, 4-epoxycyclohexyl ester, 6-8 parts by weight of styrene-isoprene copolymer, 0.5-2 parts by weight of N-(3-trialkoxysilyl) alkyl) ethylenediamine, 1-3 parts by weight of tungsten carbide, 2-4 parts by weight of scandium oxide, 1-3 parts by weight of vanadium boride, 2-4 parts by weight of nickel phosphate, 1-3 parts by weight of tantalum boride, 3-5 parts by weight of an antioxidant, and 60-80 partsby weight of methyl isobutyl ketone. The pipeline for the LNG gasification pressure regulating measuring skid-mount package has excellent ageing resistance, high temperature resistance, low temperature resistance and corrosion resistance.

Description

technical field [0001] The technical field of skid installation of the present invention, in particular relates to a pipeline for LNG gasification pressure regulation and metering skid. Background technique [0002] With the continuous expansion of social needs, energy problems have become more and more prominent. With the development and application of natural gas, the problem of energy shortage has been alleviated. Natural gas equipment is becoming more and more abundant, LNG gasification and pressure regulation metering skid is one of them, but the pipelines used in the current LNG gasification and pressure regulation metering skid have poor corrosion and oxidation resistance, resulting in LNG gasification and pressure regulation Metering skids have problems such as short service life and high maintenance costs. Contents of the invention [0003] In view of the problems existing in the existing LNG gasification and pressure regulating metering skid pipeline, the presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/02F16L58/04F16L57/02F16L57/04F16L57/06
CPCF16L9/02F16L57/02F16L57/04F16L57/06F16L58/04
Inventor 李夏明
Owner 无锡爱尔拓燃气技术设备有限公司
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