CN210397960U

CN210397960U - Stainless steel composite pipe for fluid transportation

Info

Publication number: CN210397960U
Application number: CN201921376627.1U
Authority: CN
Inventors: 张丰琼; 唐刚全
Original assignee: Sichuan Quanfeng New Materials And Technology Co ltd
Current assignee: Sichuan Quanfeng New Materials And Technology Co ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-04-24
Anticipated expiration: 2029-08-23

Abstract

The utility model discloses a fluid is carried and is used stainless steel composite pipe, including stainless steel pipe, helical blade, the inner liner of making by the glass fiber surface felt, inner structure layer, the sand inclusion layer of making by basalt fiber cloth, the outer structure layer of making by glass fiber cloth and the protective layer of making by the glass fiber surface felt, helical blade fixes on stainless steel pipe, the inner liner passes through the adhesive spiral under helical blade's spacing and fixes on stainless steel pipe, and the surface of fixed back inner liner flushes with helical blade, inner structure layer passes through the adhesive winding to be fixed on inner liner and helical blade, the sand inclusion layer passes through the adhesive winding to be fixed on the inner liner, outer structure layer passes through the adhesive winding to be fixed on the sand inclusion layer, the protective layer passes through the adhesive winding to be fixed on outer structure layer. The utility model discloses simple structure, be convenient for make, structural strength are higher.

Description

Stainless steel composite pipe for fluid transportation

Technical Field

The utility model relates to the technical field of pipelines, specifically speaking relates to a stainless steel composite pipe for fluid conveying.

Background

At present, various pipelines are widely applied to various fields of production and life of people, and the pipelines comprise metal pipes, plastic pipes, composite pipes and the like. Because the composite pipe is formed by compounding a plurality of materials with different characteristics, and the characteristics of the materials after compounding are mutually complementary, the composite pipe has more excellent performance compared with a pipeline made of a single material. And thus increasingly complement widespread use.

The prior art with the Chinese patent application number of 201220530070.4 discloses a drinking water conveying pipe in 7 and 10.2013, wherein the conveying pipe is a composite pipe and comprises an outer-layer base pipe and a lining stainless steel pipe compounded on the inner side of the base pipe, and the base pipe is a galvanized steel pipe. The conveying pipe adopts a galvanized steel pipe or a food-grade 304 stainless steel pipe as a base pipe, and the stainless steel pipe is lined in the base pipe, so that the conveying pipe has good corrosion resistance. But the base pipe is a steel pipe, and the lining pipe is a stainless steel pipe. The weight of the pipeline is heavy, resulting in difficulty in transportation construction.

In addition, the prior art with chinese patent application No. 200920121209.8 discloses a bamboo fiber wound composite pipe at 31/3/2010, which comprises an inner liner layer, a reinforcing layer and an outer protective layer sequentially from inside to outside along the pipe diameter direction, wherein the reinforcing layer is a bamboo fiber layer formed by winding a continuous bamboo fiber tape on the inner liner layer, the bamboo fiber layer is a bamboo fiber tape hoop layer, a bamboo fiber tape spiral layer or a combination of the two layers, and the number of the bamboo fiber layer is two or more. Although the composite pipe has the advantages of light weight, high strength, high rigidity and high toughness, the outer surface of the lining layer is smooth, and the reinforcing layer and the outer protective layer are only bonded on the lining layer by the adhesive force of the adhesive, so that the problem of insufficient structural strength still exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the above-mentioned problem that exists among the prior art, provide a simple structure, be convenient for make, the higher compound pipe of fluid transport of structural strength.

In order to achieve the above object, the utility model adopts the following technical scheme:

a stainless steel composite pipe for fluid transportation is characterized in that: including stainless steel pipe, helical blade, by the inner liner that the glass fiber surface felt was made, by inner structure layer, the sand inclusion layer that basalt fiber cloth made, the outer structure layer of making by glass fiber cloth and the protective layer of making by glass fiber surface felt, helical blade fixes on stainless steel pipe, the inner liner passes through the adhesive spiral under helical blade's spacing and fixes on stainless steel pipe, and the surface of fixed back inner liner flushes with helical blade, inner structure layer passes through the adhesive winding to be fixed on inner liner and helical blade, the sand inclusion layer passes through the adhesive winding to be fixed on the inner liner, outer structure layer passes through the adhesive winding to be fixed on the sand inclusion layer, the protective layer passes through the adhesive winding to be fixed on outer structure layer.

The spiral blade is provided with a through hole, and the spiral blade and the through hole are coated with adhesives.

The thickness of the spiral blade is 0.1-0.4 mm.

The inner liner is two-layer, and two-layer inner liner spiral in proper order is fixed on nonrust steel pipe.

The sand inclusion layer comprises a gauze band and a sand inclusion material formed by mixing a resin matrix and quartz sand, and the sand inclusion material is uniformly coated on the gauze band and then wound and fixed on the inner liner layer through an adhesive.

The helical blades are welded and fixed or integrally formed on the stainless steel pipe.

The thickness of stainless steel pipe is 1-8mm, the thickness of inner liner layer is 1-2mm, the thickness of inner structure layer is 3-5mm, the thickness of sand inclusion layer is 6-30mm, the thickness of outer structure layer is 5-10mm, the thickness of protective layer is 1-2 mm.

Adopt the utility model has the advantages of:

1. composite pipe is by stainless steel pipe, helical blade, inner liner, inner structure layer, sand inclusion layer, outer structure layer and protective layer form that cements in proper order, owing to fixed helical blade on stainless steel pipe, and helical shape's blade not only has the effect of strengthening rib, can also play the supporting role to stainless steel pipe and other each lamellar structure when receiving external force, prevents that each lamellar structure from receiving destruction. Therefore, the structural strength (including tensile strength) of the composite pipe can be effectively enhanced, and the performance of the composite pipe is improved. In addition, each layer of layered structure is adhered to the stainless steel pipe through the adhesive, so that the composite pipe has the advantages of simple structure, convenience in manufacturing and the like.

2. The utility model discloses set up the through-hole on helical blade to on helical blade and the through-hole in all the coating have the adhesive, should set up the advantage of mode and lie in not only can improving the adhesion between helical blade and inner liner layer and the inner structure layer, can also improve the inseparable connectivity between inner liner in the two adjacent pitches in the helical blade and the inner liner, thereby reach the purpose that improves compound pipe product performance.

3. The utility model has good corrosion resistance and aging resistance; the environment is protected and clean, and the water quality and the process medium are not polluted; light weight, 30-50 years of service life and low construction cost; the glass fiber and the basalt fiber are mixed for use, so that the mechanical property of the reinforced fiber is improved; the sand inclusion layer of the resin mortar is adopted, so that the structural strength of the product is improved; the fluid resistance is small, the fluid conveying capacity is improved, and energy conservation and consumption reduction are realized; the pipelines with various specifications and models can be manufactured according to different designed pressures; the installation is convenient, and the method is suitable for exposed laying or buried laying. It is suitable for the transportation of water for leading, other water transportation engineering and chemical production equipment.

4. The utility model discloses the thickness of well stainless steel pipe is 1-8mm, and the thickness of inner liner is 1-2mm, and the thickness of inner structure layer is 3-5mm, and the thickness of sand inclusion layer is 6-30mm, and the thickness of outer structure layer is 5-10mm, and the thickness of protective layer is 1-2 mm. Is beneficial to being suitable for different application ranges.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic diagram of the side view structure of the present invention in which the helical blades are fixed on the stainless steel pipe;

the reference numbers in the figures are: 1. stainless steel pipe, 2, helical blade, 3, inner liner, 4, inner structure layer, 5, sand inclusion layer, 6, outer structure layer, 7, protective layer, 8, through-hole.

Detailed Description

Example 1

The embodiment provides a stainless steel composite pipe for fluid transportation, which comprises a stainless steel pipe 1, a helical blade 2, an inner liner layer 3 made of glass fiber surface felt, an inner structural layer 4 made of basalt fiber cloth, a sand inclusion layer 5, an outer structural layer 6 made of glass fiber cloth and a protective layer 7 made of glass fiber surface felt, wherein the helical blade 2 is welded and fixed on the stainless steel pipe 1 or integrally formed on the stainless steel pipe 1, the inner liner layer 3 is spirally fixed on the stainless steel pipe 1 through an adhesive under the limit of the helical blade 2, the outer surface of the inner liner layer 3 is flush with the helical blade 2 after being fixed, the inner structural layer 4 is wound and fixed on the inner liner layer 3 and the helical blade 2 through the adhesive, the sand inclusion layer 5 is wound and fixed on the inner liner layer 3 through the adhesive, the outer structural layer 6 is wound and fixed on the sand inclusion layer 5 through the adhesive, the protective layer 7 is wound around the outer structural layer 6 by means of an adhesive.

In this embodiment, the thickness of the helical blade 2 is 0.1-0.4mm, the thickness of the stainless steel pipe 1 is 1-8mm, the thickness of the inner liner layer 3 is 1-2mm, the thickness of the inner structural layer 4 is 3-5mm, the thickness of the sand inclusion layer 5 is 6-30mm, the thickness of the outer structural layer 6 is 5-10mm, and the thickness of the protective layer 7 is 1-2 mm.

In this embodiment, the sand inclusion layer 5 includes a gauze band and a sand inclusion material formed by mixing a resin matrix and quartz sand, and the sand inclusion material is uniformly coated on the gauze band and then wound and fixed on the lining layer 3 through an adhesive.

Example 2

In this embodiment, the helical blade 2 is provided with a through hole 8, and the helical blade 2 and the through hole 8 are both coated with adhesives. The through hole 8 is preferably circular, but may be triangular or square.

Example 3

In this embodiment, the inner liner 3 is two-layer, and two-layer inner liner 3 is fixed on nonrust steel pipe in proper order the spiral.

The preparation steps of the utility model are as follows:

(1) a stainless steel pipe 1 with helical blades 2 is sleeved on the core mould;

(2) coating an adhesive on the surface of the stainless steel pipe 1 and the helical blade 2;

(3) winding a glass fiber surface felt on the surface of the stainless steel pipe 1 coated with the adhesive to form an inner liner layer 3;

(4) impregnating the surface of the lining layer 3 with an adhesive; the content of the adhesive is 65-85%;

(5) and winding basalt fiber cloth on the surface of the lining layer 3 impregnated with the adhesive to form an inner structure layer 4. Carrying out reciprocating winding according to the process design thickness in the winding process to obtain the design thickness; the content of the adhesive reaches 25 to 35 percent;

(6) impregnating the surface of the inner structure layer 4 with adhesive;

(7) mixing a resin matrix and quartz sand to form a sand inclusion material, uniformly coating the sand inclusion material on a gauze band, and winding the gauze band on an inner structure layer 4 to form a sand inclusion layer 5; the resin content in the resin mortar is 25-35%;

(8) impregnating the surface of the sand inclusion layer 5 with an adhesive;

(9) winding glass fiber cloth on the surface of the sand inclusion layer 5 to form an outer structure layer 6;

(10) coating adhesive on the surface of the outer structure layer 6;

(11) winding a glass fiber surface felt on the surface of the outer structure layer 6 and impregnating adhesive to form a protective layer 7;

(12) curing at normal temperature, and demolding and forming.

Claims

1. A stainless steel composite pipe for fluid transportation is characterized in that: comprises a stainless steel pipe (1), helical blades (2), an inner lining layer (3) made of glass fiber surface felt, an inner structural layer (4) made of basalt fiber cloth, a sand inclusion layer (5), an outer structural layer (6) made of glass fiber cloth and a protective layer (7) made of glass fiber surface felt, wherein the helical blades (2) are fixed on the stainless steel pipe (1), the inner lining layer (3) is spirally fixed on the stainless steel pipe (1) through a bonding agent under the limit of the helical blades (2), the outer surface of the inner lining layer (3) is flushed with the helical blades (2) after the fixation, the inner structural layer (4) is fixed on the inner lining layer (3) and the helical blades (2) through the bonding agent winding, the sand inclusion layer (5) is fixed on the inner lining layer (3) through the bonding agent winding, the outer structural layer (6) is fixed on the sand inclusion layer (5) through the bonding agent winding, the protective layer (7) is wound and fixed on the outer structural layer (6) through adhesive.

2. The stainless steel composite pipe for fluid transfer according to claim 1, wherein: the spiral blade (2) is provided with a through hole (8), and the spiral blade (2) and the through hole (8) are coated with adhesives.

3. The stainless steel composite pipe for fluid transfer according to claim 1 or 2, wherein: the thickness of the helical blade (2) is 0.1-0.4 mm.

4. The stainless steel composite pipe for fluid transfer according to claim 1, wherein: the inner liner (3) is two-layer, and two-layer inner liner (3) is fixed on the stainless steel pipe in a spiral mode in sequence.

5. The stainless steel composite pipe for fluid transfer according to claim 1, wherein: the sand inclusion layer (5) comprises a gauze belt and a sand inclusion material formed by mixing a resin matrix and quartz sand, and the sand inclusion material is uniformly coated on the gauze belt and then wound and fixed on the lining layer (3) through an adhesive.

6. The stainless steel composite pipe for fluid transfer according to claim 1, wherein: the helical blades (2) are welded and fixed or integrally formed on the stainless steel pipe (1).

7. The stainless steel composite pipe for fluid transfer according to claim 1, wherein: the thickness of stainless steel pipe (1) is 1-8mm, the thickness of inner liner (3) is 1-2mm, the thickness of inner structure layer (4) is 3-5mm, the thickness of sand inclusion layer (5) is 6-30mm, the thickness of outer structure layer (6) is 5-10mm, the thickness of protective layer (7) is 1-2 mm.