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Preparation method of high-strength heat preservation-type gas pipeline

A gas pipeline, high-strength technology, applied in the field of pipeline production, can solve the problems of poor mechanical strength, scratches, cracks, etc., and achieve the effects of improving mechanical strength and hardness, improving thermal insulation performance, and increasing roughness

Inactive Publication Date: 2020-04-24
欧阳灿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a high-strength heat-insulating gas pipeline preparation method in view of the defects that the current gas pipeline has poor thermal insulation effect, poor mechanical strength, and low hardness, which lead to gas pipelines being easily deformed, cracked, and scratched.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Preparation of mixed slurry:

[0034] Put the graphite block and silica powder into the planetary ball mill at a mass ratio of 5:1, and grind for 40 minutes under the conditions of a rotating speed of 60 minutes and a ball-to-material ratio of 10:1. The material and the sulfuric acid solution with a mass fraction of 60% are put into a beaker at a mass ratio of 1:10, the beaker is placed in an ice-water bath, and the stirring device is stirred at a speed of 500r / min for 30min to obtain a mixed slurry;

[0035] Preparation of oxidation products:

[0036] Add potassium permanganate powder with a mass of 1% of the mixed slurry to the above beaker, raise the temperature of the water bath to 35°C, stir with a stirrer at a speed of 30r / min for 50min under constant temperature conditions, and prepare an oxidation reaction solution after stirring. The oxidation reaction solution is put into a suction filter for suction filtration to obtain a filter residue, and the filter resid...

Embodiment 2

[0048] Preparation of mixed slurry:

[0049] Put the graphite block and the silica powder into the planetary ball mill at a mass ratio of 5:1, and grind for 45 minutes under the conditions of a rotating speed of 70 minutes and a ball-to-material ratio of 10:1. The material and the sulfuric acid solution with a mass fraction of 70% are put into a beaker at a mass ratio of 1:10, the beaker is placed in an ice-water bath, and the stirring device is stirred at a speed of 550r / min for 35min to obtain a mixed slurry;

[0050] Preparation of oxidation products:

[0051] Add potassium permanganate powder with a mixed slurry mass of 1.5% to the above beaker, raise the temperature of the water bath to 37.5°C, stir with a stirrer at a speed of 325r / min for 55min under constant temperature conditions, and prepare the oxidation reaction solution after stirring. The oxidation reaction liquid is put into a suction filter for suction filtration to obtain a filter residue, and the filter resi...

Embodiment 3

[0063] Preparation of mixed slurry:

[0064] Put the graphite block and silica powder into the planetary ball mill at a mass ratio of 5:1, and grind for 50 minutes under the conditions of a rotating speed of 80 minutes and a ball-to-material ratio of 10:1. The material and the sulfuric acid solution with a mass fraction of 80% are put into a beaker at a mass ratio of 1:10, the beaker is placed in an ice-water bath, and the stirring device is stirred at a speed of 600r / min for 40min to obtain a mixed slurry;

[0065] Preparation of oxidation products:

[0066] Add potassium permanganate powder with a mass of 2% of the mixed slurry to the above beaker, raise the temperature of the water bath to 40°C, stir with a stirrer at a speed of 350r / min for 60min under constant temperature conditions, and prepare an oxidation reaction solution after stirring. The oxidation reaction liquid is put into a suction filter for suction filtration to obtain a filter residue, and the filter residu...

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Abstract

The invention belongs to the technical field of pipeline production, and particularly relates to a preparation method of a high-strength heat preservation-type gas pipeline. The preparation method comprises the following steps: mixing and grinding graphite blocks and silicon dioxide powder; mixing a rigid fiber product, polyethylene and other materials; and after mixing and extruding and curing inthe extruder, obtaining high-strength heat preservation type gas pipeline. The graphene oxide molecules have carboxyl, hydroxyl, sulfur groups and other functional groups, the bonding degree betweengraphene and all surrounding components is enhanced, the mechanical strength of the gas pipeline is enhanced, and the gas pipeline is difficult to deform, crack and scratch; the graphene molecules aremore uniformly dispersed in the gas pipeline structure through the cotton fibers; calcium chloride is introduced into the cotton fibers, sodium carbonate is added for a reaction, the roughness degreeof the fiber structure is increased, after the fiber pipe is filled with gas, the heat preservation performance of the cotton fibers is further improved, the heat preservation performance of the gaspipeline is improved, and wide application prospects are achieved.

Description

technical field [0001] The invention belongs to the technical field of pipeline production, and in particular relates to a preparation method of a high-strength thermal insulation gas pipeline. Background technique [0002] The gas pipe is a special pipe for transporting combustible gas. It is a kind of metal gas pipe hose to replace the traditional snap-on rubber hose. defect. The gas pipe has the characteristics of convenient installation, reliable connection, corrosion resistance, no gas blockage, good flexibility, long service life, and can be bent arbitrarily without deformation or gas resistance. The material of the surface soft protective layer is safer, easier to clean, and more beautiful. The service life of the stainless steel threaded metal hose is 8 years. In China's municipal pipe market, plastic pipes are developing steadily. PE gas pipes, PP-R gas pipes, and UPVC gas pipes all occupy a place. Among them, the strong development momentum of PE pipes is the mos...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L33/04C08L1/02C08K13/04C08K7/10C08K3/26C08K3/34C08K3/04
CPCC08K2003/265C08L23/06C08L2203/18C08L2205/03C08L2205/16C08L33/04C08L1/02C08K13/04C08K7/10C08K3/26C08K3/34C08K3/042
Inventor 欧阳灿
Owner 欧阳灿