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Corrosion-resistant high-pressure hose and production method thereof

A high-pressure hose, corrosion-resistant technology, applied in hoses, chemical instruments and methods, pipes, etc., can solve problems such as restricting the use range and service life of hoses, poor corrosion resistance and weak impact resistance of inner pipes, etc. Achieve the effect of improving service life, corrosion resistance, and impact resistance

Active Publication Date: 2013-01-09
HEBEI JINGBO PETROLEUM MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above two hoses have overcome the problems of heavy weight, high price and inconvenient installation of hard tubes, their inner tubes have poor corrosion resistance and outer wear resistance, especially weak impact resistance, which seriously restricts the scope of use and service life

Method used

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  • Corrosion-resistant high-pressure hose and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1, such as figure 1 As shown, the present invention includes an inner tube layer 1, a steel wire reinforcement layer 3, a middle rubber layer 4 and an outer rubber layer 6, and is characterized in that the inner tube layer is an inner tube layer of hydrogenated nitrile rubber, and the outer layer of the inner tube layer of hydrogenated nitrile rubber is coated There is an aramid cloth layer 2, the aramid cloth layer is wound or braided steel wire reinforcement layer, the steel wire reinforcement layer is a medium rubber layer, the middle rubber layer is a medium rubber adhesive layer, and the medium rubber adhesive layer is connected with a wound or braided steel wire reinforcement layer Integral 5, the outermost outer rubber layer is a protective layer.

[0012] In consideration of further enhancing the impact resistance of the hose and improving the strength and flexibility of the hose, in this embodiment the outer rubber protective layer is also covered with ...

Embodiment 2

[0017] Example 2, the hydrogenated nitrile rubber inner rubber tube layer is formulated from the following components and weight ratios, semi-saturated hydrogenated butylnitrile 4367: highly saturated hydrogenated butylnitrile 3904: carbon black N330: carbon black N660: dioctyl Grease: zinc oxide: stearic acid: coumarone: dispersing flow aid ADD-212: antiaging agent mb: antiaging agent RD: peroxide vulcanizing agent DCO-40: accelerator TMTD: sulfur = 16:4:6:8 :1:1.1:01:2:0.3:0.3:0.35:1.3:0.4:0.2.

[0018] The middle rubber adhesive layer is formulated from the following components and weight ratios, neoprene CR-322: natural rubber NR-N41: zinc oxide: magnesium oxide: stearic acid SA: carbon black N660: dioxide Silicon: Silica: Anti-Armor: Anti-aging agent BLE: Adhesive AS-88: Sulfur: Accelerator DM=16:5:1.1:0.7:0.35:4:3:5:0.4:0.2:0.75:0.05: 0.05.

[0019] The outer rubber protection layer is prepared from the following components and weight ratio: Neoprene CR-322: Natural ru...

Embodiment 3

[0020] Example 3, the hydrogenated nitrile rubber inner rubber tube layer is formulated from the following components and weight ratios, half-saturated hydrogenated butylnitrile 4367: highly saturated hydrogenated butylnitrile 3904: carbon black N330: carbon black N660: dioctyl Grease: zinc oxide: stearic acid: coumarone: dispersion flow aid ADD-212: antiaging agent mb: antiaging agent RD: peroxide vulcanizing agent DCO-40: accelerator TMTD: sulfur = 16:5:4:9 :1.1:0.9:0.2:2.5:0.1:0.35:0.4:1.1:0.5:0.3.

[0021] The middle rubber adhesive layer is formulated from the following components and weight ratios, neoprene CR-322: natural rubber NR-N41: zinc oxide: magnesium oxide: stearic acid SA: carbon black N660: dioxide Silicon: Silica: Anti-Armor: Anti-aging agent BLE: Adhesive AS-88: Sulfur: Accelerator DM=16:6:0.9:0.8:0.4:2:4:6:0.2:0.3:0.8:0.03: 0.06.

[0022] The outer rubber protection layer is prepared from the following components and weight ratio: Neoprene CR-322: Natural...

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Abstract

The invention discloses a corrosion-resistant high-pressure hose and a production method thereof. The corrosion-resistant high-pressure hose comprises an inner pipe layer (1), a steel wire enhancing layer (3), a middle glue layer (4) and an outer glue layer (6). The hose is characterized in that the inner pipe layer is made from hydrogenated butyl rubber and is coated with an aramid fabric layer (2), the steel wire enhancing layer is wound or woven outside the aramid fabric layer, the middle glue layer, namely a middle glue bonding layer, is arranged outside the steel wire enhancing layer, a second steel wire enhancing layer (5) is wound or woven outside the middle glue bonding layer, the middle glue bonding layer and the wound or woven steel wire enhancing layer are fused together, and the outermost layer of the hose is the outer glue layer which is a protective layer. The production method is implemented through carrying out processes such as banburying and extrusion on materials of the inner pipe layer made from the hydrogenated butyl rubber, the middle glue bonding layer and the outer glue protective layer, and winding the steel wire enhancing layer and coating the aramid fabric layer respectively. The corrosion-resistant high-pressure hose disclosed by the invention is good in stability, strong in corrosion resistance and H2S prevention, and wear-resisting especially; and the impact resistance of the hose is improved, the strength and flexibility of the hose are enhanced, and the service life of the hose is effectively prolonged by more than 50%.

Description

technical field [0001] The invention relates to a liquid or gas delivery pipeline, in particular to a corrosion-resistant high-pressure hose and a production method thereof. Background technique [0002] At present, most of the pipelines used for chemical, oil and gas transportation in my country are steel pipelines or hard pipelines such as glass fiber reinforced plastics, which are not only heavy and expensive, but also inconvenient to connect, poor in stability, poor in corrosion and H2S resistance, and high in post-corrosion and maintenance costs. To overcome the above defects, people began to develop hoses instead of hard tubes for liquid or gas transportation. For example, Chinese patent 03121929.2 discloses a polyurethane reinforced hose and its manufacturing method, which is characterized in that the inner core is a thin-walled polyurethane hose. , the middle reinforcement layer is braided steel wire, and the outer layer is polyurethane hose. Its production method incl...

Claims

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Application Information

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IPC IPC(8): F16L11/08B32B1/08B32B15/02B32B25/04C08L15/00C09J111/00C09J107/00C08L9/06C08L11/00C08L7/00B29B7/28B29B7/72
Inventor 刘锡磊刘堪金王书义
Owner HEBEI JINGBO PETROLEUM MACHINERY
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