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Wear-resisting high-pressure-resisting nonmetal composite flexible pipe used for mining and preparing method and application of wear-resisting high-pressure nonmetal composite flexible pipe

A composite flexible, non-metallic technology, used in applications, hoses, pipes, etc., can solve the problem of further improvement of comprehensive performance, and achieve the effect of small specific gravity, convenient transportation and storage, and convenient construction

Inactive Publication Date: 2020-04-03
青岛盛高石油装备有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the continuous improvement of non-metallic material science and processing technology, non-metallic pipes are developing in the direction of large diameter, high pressure and high performance, but their comprehensive performance still needs to be further improved

Method used

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  • Wear-resisting high-pressure-resisting nonmetal composite flexible pipe used for mining and preparing method and application of wear-resisting high-pressure nonmetal composite flexible pipe
  • Wear-resisting high-pressure-resisting nonmetal composite flexible pipe used for mining and preparing method and application of wear-resisting high-pressure nonmetal composite flexible pipe
  • Wear-resisting high-pressure-resisting nonmetal composite flexible pipe used for mining and preparing method and application of wear-resisting high-pressure nonmetal composite flexible pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] In the wear-resistant and high-pressure resistant non-metallic multi-layer composite flexible pipe of this embodiment, the formula of wear-resistant thermoplastic polyurethane is recorded as: 100 parts of thermoplastic polyurethane elastomer, 5 parts of wear-resistant filler carbon nanotubes, antioxidant 0.2 parts. The thermoplastic polyurethane elastomer used in this example is purchased from Wanhua, brand 8190. The basic performance requirements of the thermoplastic polyurethane elastomer used: hardness: 85-95, tensile strength ≥ 25MPa, tear strength ≥ 70N / mm.

[0051] The fibers used in the fiber reinforced layer in this embodiment are glass fibers with a fiber diameter of 1 mm.

[0052] In this embodiment, the outer protective layer is made of high-density polyethylene (HDPE), the tensile strength is ≥20 MPa, and the elongation at break is ≥400%.

[0053] In this embodiment, the pipe size of the thermoplastic polyurethane lining layer is: inner diameter 193.7mm, w...

Embodiment 2

[0062] In the wear-resistant and high-pressure resistant non-metal multi-layer composite flexible pipe of this embodiment, the formula of wear-resistant thermoplastic polyurethane is recorded as: 100 parts of thermoplastic polyurethane elastomer, 5 parts of wear-resistant filler molybdenum disulfide, antioxidant 0.3 parts; the thermoplastic polyurethane elastomer used in this example is produced by purchased Wanhua, brand 8290. The basic performance requirements of the thermoplastic polyurethane elastomer used: hardness: 85-95, tensile strength ≥ 25MPa, tear strength ≥ 70N / mm.

[0063] The fibers used in the fiber reinforced layer in this embodiment are aramid fibers with a diameter of 1 mm, a twist of 41, and a Z direction.

[0064] In this embodiment, the outer protective layer is made of high-density polyethylene (HDPE), the tensile strength is ≥20 MPa, and the elongation at break is ≥400%.

[0065] In this embodiment, the pipe size of the thermoplastic polyurethane lining...

Embodiment 3

[0068] In the wear-resistant and high-pressure resistant non-metallic multilayer composite flexible pipe of this embodiment, the formula of wear-resistant thermoplastic polyurethane is recorded as: 100 parts of thermoplastic polyurethane elastomer, 2 parts of wear-resistant filler graphene, 3 parts of carbon nanotubes part, 0.3 part of antioxidant; the thermoplastic polyurethane elastomer used in this example is produced by purchased Wanhua, the brand mainly has 8190. The basic performance requirements of the thermoplastic polyurethane elastomer used: hardness: 85-95, tensile strength ≥ 25MPa, tear strength ≥ 70N / mm.

[0069] The fibers used in the fiber reinforced layer in this embodiment are aramid fibers with a fiber diameter of 2 mm, a twist of 70, and a Z direction.

[0070] In this embodiment, the outer protective layer is made of TPU8190 pure material, the tensile strength is ≥25 MPa, and the elongation at break is ≥400%.

[0071] In this embodiment, the pipe size of t...

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Abstract

The invention provides a wear-resisting high-pressure-resisting nonmetal composite flexible pipe used for mining and a preparing method and application of the wear-resisting high-pressure nonmetal composite flexible pipe. The wear-resisting high-pressure-resisting nonmetal composite flexible pipe is provided with a multilayer pipe wall structure and comprises a thermoplastic polyurethane lining layer, a pressure-resisting fiber enhancement layer and an outer protection layer. The pressure-resisting fiber enhancement layer is arranged between the thermoplastic polyurethane lining layer and theouter protection layer. The flexible pipe can be used in the field of mining, especially deep ocean mining and is used for conveying liquid-solid and gas-solid dual-phase and multi-phase flow used formining of ore sand having requirements for ultrahigh wear-resisting performance, impact-resisting performance and high-pressure-resisting performance of pipelines.

Description

technical field [0001] The invention relates to a wear-resistant and high-pressure resistant non-metallic composite flexible pipe for mining and its preparation method and application. The pipe can be used for the mining of various liquid phases or solid-liquid mixed phases and multi-phase flows on land and in the ocean. and delivery pipelines. Background technique [0002] Most of the traditional mining conveying pipes are made of metal material and composite material of metal and polymer material. The metal material pipeline has the disadvantages of large proportion, easy to corrode, easy to wear, and high frequency of replacement; the metal material composite pipeline is generally used in A layer of polymer wear-resistant material is laid on the inner and outer surfaces of the metal, which still has the disadvantages of large specificity, difficulty in storage, transportation and construction. Compared with traditional metal pipes, non-metallic flexible pipes have many a...

Claims

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Application Information

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IPC IPC(8): F16L11/08F16L11/12F16L57/06C08L75/04C08K3/04C08K3/30C08K13/06C08K9/06C08K9/08C08K3/34B29D23/00
CPCB29D23/00C08K3/30C08K3/346C08K9/06C08K9/08C08K13/06C08K2003/3009C08K2201/011C08L2203/18C08L2207/04C08K3/041C08K3/042F16L11/081F16L11/085F16L11/12F16L57/06C08L75/04
Inventor 丁磊王洁炜
Owner 青岛盛高石油装备有限责任公司
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