Method for producing concentrated nitric acid storage tank by winding carbon fibers

A concentrated nitric acid, carbon fiber technology, applied in packaging, large containers, transportation and packaging, etc., can solve the problems of self-weight, reduce the weight of the tank, and it is difficult to meet the requirements of railway transportation, and achieve the optimal winding angle and prevent galvanic corrosion. Effect

Inactive Publication Date: 2016-09-14
中国石油集团东北炼化工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After the speed of the railway is increased, these aluminum tank cars are heavy, which reduces the load capacity of the tank car, and it is difficult to meet

Method used

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  • Method for producing concentrated nitric acid storage tank by winding carbon fibers
  • Method for producing concentrated nitric acid storage tank by winding carbon fibers
  • Method for producing concentrated nitric acid storage tank by winding carbon fibers

Examples

Experimental program
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Effect test

Example Embodiment

[0043] Example one:

[0044] This embodiment discloses a method for preparing a concentrated nitric acid storage tank by winding carbon fibers, including the following steps:

[0045] (1) According to the performance and safety requirements of the concentrated nitric acid storage tank and the GB150 design standard, calculate the winding thickness of the carbon fiber layer. The winding thickness of the carbon fiber layer is 5 mm. According to the mechanical strength of the carbon fiber material, calculate the carbon fiber layer winding in different parts of the tank. The winding angles are 15 degrees, 55 degrees, and 90 degrees, and 15 winding angles are wound in 8 layers, 55 winding angles are wound in 20 layers, and 90 degree winding angles are wound in 6 layers;

[0046] (2) Use mechanical polishing and acetone to clean the pure aluminum inner liner to make the surface clean;

[0047] (3) Prepare a carbon fiber layer material for winding, the carbon fiber layer material is a mixture...

Example Embodiment

[0053] Embodiment two:

[0054] This embodiment discloses a method for preparing a concentrated nitric acid storage tank by winding carbon fibers, including the following steps:

[0055] (1) According to the performance and safety requirements of the concentrated nitric acid storage tank and the GB150 design standard, calculate the winding thickness of the carbon fiber layer. The thickness of the carbon fiber layer is 4.5 mm. According to the mechanical strength of the carbon fiber material, the carbon fiber layer winding in different parts of the tank is calculated. The winding angles are 15 degrees, 55 degrees, and 90 degrees, and 15 winding angles are wound in 9 layers, 55 winding angles are wound in 18 layers, and 90 degree winding angles are wound in 4 layers;

[0056] (2) Use mechanical polishing and acetone to clean the pure aluminum inner liner to make the surface clean;

[0057] (3) Prepare a carbon fiber layer material for winding, the carbon fiber layer material is a mixtur...

Example Embodiment

[0063] Embodiment three:

[0064] This embodiment discloses a method for preparing a concentrated nitric acid storage tank by winding carbon fibers, including the following steps:

[0065] (1) According to the performance and safety requirements of the concentrated nitric acid storage tank and the GB150 design standard, calculate the winding thickness of the carbon fiber layer. The thickness of the carbon fiber layer is 5 mm. According to the mechanical strength of the carbon fiber material, calculate the carbon fiber layer winding in different parts of the tank. The winding angle is 15 degrees, 55 degrees, and 90 degrees, and the winding angle is 15 degrees, and the winding angle is 15 degrees, and the winding angle is 55 degrees.

[0066] (2) Use mechanical polishing and acetone to clean the pure aluminum inner liner to make the surface clean;

[0067] (3) Prepare a carbon fiber layer material for winding, the carbon fiber layer material is a mixture of epoxy resin and curing agent,...

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Abstract

The invention provides a method for producing a concentrated nitric acid storage tank by winding carbon fibers. The method comprises the following steps of calculating the winding thickness of a carbon fiber layer; calculating the winding angle of the carbon fiber layer; cleaning a pure aluminum inner container; winding a glass fiber layer; configuring a winding material of the carbon fiber layer; winding the carbon fiber layer; heating and curing materials of the carbon fiber layer; welding a pipe hole; and welding a storage tank supporting seat. According to the method provided by the invention, the concentrated nitric acid storage tank is produced by winding the carbon fiber material; the tank body consists of a pure aluminum inner container layer, the glass fiber layer and the carbon fiber layer; after the stress conditions of the tank body of the storage tank are analyzed by using a layer and plate theory, the winding thickness of the carbon fiber layer is calculated and the winding angle is optimized; and by adding the glass fiber layer, galvanic corrosion of the pure aluminum inner container and the carbon fiber layer can be effectively prevented.

Description

technical field [0001] The invention relates to the technical field of preparation methods of storage tanks, in particular to a method for preparing concentrated nitric acid storage tanks by winding carbon fibers. Background technique [0002] Concentrated nitric acid is a widely used chemical raw material, because concentrated nitric acid has strong oxidizing and corrosive properties. At present, the railway tank cars used for the railway transportation of concentrated nitric acid are 60-ton aluminum tank cars, mostly produced in the 1970s and 1980s. According to the calculation of the service life of the railway tank cars of 25 years, most of the aluminum tank cars have reached the end of life. After the railway speed was increased, these aluminum tank cars were heavy, which reduced the load capacity of the tank cars, and it was difficult to meet the requirements of railway transportation. Since 2006, no new aluminum railway tank cars have been put on the market, and the c...

Claims

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Application Information

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IPC IPC(8): B65D88/12B29C53/56B29C53/80
CPCB65D88/12B29C53/56B29C53/8008
Inventor 周国顺王敏罗永和郑寻中杨禹袁立业张保平
Owner 中国石油集团东北炼化工程有限公司
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