Corrosion-resistant spheroidal graphite cast iron pipe

A ductile iron pipe, ductile iron technology, applied in the direction of pipeline protection, pipe/pipe joints/fittings, pipeline anti-corrosion/rust protection, etc., can solve the problem of destroying the internal structure of ductile iron pipes, replacing the troublesome sewage pipes, and inevitable corrosion. and other problems to achieve the effect of improving corrosion resistance, reducing head loss and ensuring service life

Inactive Publication Date: 2017-08-18
蓬溪县福君腾设计服务有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Although the existing domestic ductile iron pipes used for sewage transportation have an anti-corrosion layer, they are inevitably corroded, but the corrosion rate is slow, but the acid-base in the sewage is seriously unbalanced, and the amount of sewa

Method used

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  • Corrosion-resistant spheroidal graphite cast iron pipe
  • Corrosion-resistant spheroidal graphite cast iron pipe

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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0015] see Figure 1-2 As shown, a corrosion-resistant ductile iron pipe includes a ductile iron pipe body 4, a socket 1 is provided at one end of the ductile iron pipe body 4, and the middle section of the ductile iron pipe body 4 is connected to the external pipe 3, and the top of the external pipe 3 A nodular cast iron cover 2 is installed, a number of bolts 6 are arranged on the top of the nodular cast iron cover 2, and an apron ring 5 is arranged on the n...

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Abstract

The invention discloses a corrosion-resistant ductile iron pipe, which comprises a pipe body socket, a ductile iron cover, an external cast iron pipe, a ductile iron pipe body, an apron ring, bolts, an acid-base regulator storage ball, a connecting pipe, an anti-corrosion Corrosion layer, cement lining, external anti-erosion layer, penetration hole. The beneficial effects of the present invention are: the lining cement layer can protect water quality, reduce head loss, improve the service life of T-shaped ductile iron pipes, the anti-corrosion layer can improve the anti-corrosion ability of acid-base components in sewage, and the external anti-corrosion layer It can protect the erosion of ductile iron pipes buried under the soil for a long time, and further improve the corrosion resistance of T-shaped ductile iron pipes. The acid-base regulator storage ball is stored in the acid-base regulator, which is used to neutralize the acid-base in sewage Composition, reducing the corrosion of the inside of the ductile iron pipe, the invention effectively ensures the service life of the ductile iron pipe, and at the same time provides convenience for subsequent sewage treatment.

Description

technical field [0001] The invention relates to a corrosion-resistant ductile iron pipe. Background technique [0002] T-type ductile iron pipe is used to transport water, gas, air, oil and heating steam and other daily high-pressure fluids and other uses. Well, the price is one level lower. The casting process of ductile iron pipes includes continuous casting method and water-cooled centrifugal casting method. Among them, the water-cooling method is a modern art. Compared with ordinary cast iron pipes, the ductile iron technology of different processes not only maintains the corrosion resistance of ordinary cast iron pipes, but also has High strength, good toughness, thin wall, light weight, impact resistance, large bending function, easy installation, etc., and it has also been well implemented and used in China. [0003] Although the existing domestic ductile iron pipes used for sewage transportation have an anti-corrosion layer, they are inevitably corroded, but the co...

Claims

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Application Information

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IPC IPC(8): F16L58/06F16L58/00
CPCF16L58/06F16L58/00
Inventor 不公告发明人
Owner 蓬溪县福君腾设计服务有限公司
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