CN215849968U - Special pipe with high hardness and high compressive strength - Google Patents

Abstract

The utility model discloses a special pipe with high hardness and high compressive strength; the special pipe with high hardness and high compressive strength comprises a paint layer, wherein the paint layer is sprayed on the outer side of the pipe wall, a flame retardant material layer is arranged on the inner side of the pipe wall, a vacuum layer is connected to the inner side of the flame retardant material layer in a matched manner, the material of the pipe wall is reinforced steel, the main material of the flame retardant material layer is a high-purity mirror aluminum foil organically combined with nano flame retardant bubbles, an oil paint layer is sprayed on the outer side of the pipe wall, the paint layer can provide a protective effect on the outer portion of the pipe wall and prevent the pipe wall from rusting and influencing the use due to long-time exposure in the external environment, the flame retardant material layer and the vacuum layer are arranged in the pipe wall to achieve a dual heat preservation and heat insulation effect on the inner portion of the pipe, the special pipe is safer to use, when the pipe is used due to the fact that the cold and hot expansion and cold contraction alternately in the external environment, and a buffer layer is arranged to increase the ductility of the pipe, the service life of the pipeline is prolonged.

Description

Special pipe with high hardness and high compressive strength

Technical Field

The utility model relates to a special pipe with high hardness and high compressive strength, in particular to a special pipe with high hardness and high compressive strength.

Background

The special-shaped pipe is a seamless steel pipe which is made into various special shapes by cold drawing. The special pipes are generally distinguished according to the section, and can be divided into seamless steel pipe special pipes, aluminum alloy special pipes and plastic special pipes according to materials.

However, there are some problems in the use of the existing special pipe with high hardness and high compressive strength, 1, the existing special pipe with high hardness and high compressive strength is usually only provided with a layer of heat insulation layer in the pipe wall, the heat insulation layer can be aged gradually when the pipe is used for a long time, and only one layer is used for heat insulation, so that complete heat insulation in the pipe cannot be realized in the use process, and heat can still be emitted in the pipe.

2. The high special pipe of a current high rigidity compressive strength is usually with the pipeline directly place the use in external environment, when external environment temperature changes, the phenomenon of expend with heat and contract with cold can take place for the pipeline, and pipeline self ductility is less, when leading to long-term the use, and the pipeline can the fracture and influence the use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a special pipe with high hardness and high compressive strength, which solves the problems that the complete heat insulation in the pipe cannot be realized, heat is still dissipated in the pipeline, the ductility of the pipeline is small, and the pipeline is cracked to influence the use during long-term use.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a special-shaped pipe that high rigidity compressive strength is high, includes the paint layer, the paint layer spraying is in the pipe wall outside, the pipe wall inboard is provided with flame retardant material layer, the inboard cooperation in flame retardant material layer is connected with the vacuum layer, the material of pipe wall is the reinforced steel, flame retardant material layer's main material combines for high-purity mirror surface aluminium foil and nanometer fire-retardant bubble organic.

Preferably, the vacuum layer inboard is installed the buffer layer, the buffer layer is made by natural rubber's film, and when the pipeline exposes for a long time and uses in the external environment, can take place the phenomenon of expend with heat and contract with cold because of cold and hot in the external environment is alternative, and the buffer layer uses natural rubber's film to make, can increase the ductility of pipeline self, improves the life of pipeline.

Preferably, the inner side of the buffer layer is provided with a heat insulation layer, the main material of the heat insulation layer is silica aerogel, the heat insulation layer arranged on the inner side of the buffer layer is made of the silica aerogel, the fine nano network structure of the silica aerogel effectively limits the propagation of local thermal excitation, the solid heat conductivity of the silica aerogel is 2-3 orders of magnitude lower than that of a corresponding glass state material, the contribution of gas molecules to heat conduction is inhibited by the nano micro-pores, the refractive index of the silica aerogel is close to l, and the ratio of annihilation coefficients of infrared light and visible light is more than 100, so that sunlight can be effectively transmitted, the infrared heat radiation of the environment temperature is prevented, the silica aerogel becomes an ideal transparent heat insulation material, and the silica aerogel is applied to the aspects of solar energy utilization and building energy conservation. The radiation heat conduction of the silicon aerogel can be further reduced by means of doping, the heat conductivity of the carbon-doped aerogel at normal temperature and normal pressure can be as low as 0.013 w/m.K, the carbon-doped aerogel is a solid material with the lowest heat conductivity, the carbon-doped aerogel is expected to replace polyurethane foam to become a novel refrigerator heat insulation material, the silicon aerogel can become a novel high-temperature heat insulation material by doping titanium dioxide, and the heat conductivity is only 0.03 w/m.K when the temperature is 800K.

Preferably, the inner side of the heat-insulating layer is coated with an anticorrosive material layer, the anticorrosive material layer is made of a polyurea anticorrosive material, the inner side of the heat-insulating layer 6 is coated with an anticorrosive material layer 7 made of a polyurea anticorrosive material, the polyurea anticorrosive material is insensitive to temperature and moisture, and is not influenced by environmental temperature and humidity during construction, polyurea can be constructed in a low-temperature environment of-28 ℃ and can also be used in a humid and rainy environment, the polyurea coating is compact and seamless, can resist long-term corrosion of media such as water, seawater, acid, alkali, salt and oil, is extremely outstanding in chemical medium and soil erosion resistance, does not contain a catalyst, has good ultraviolet light aging resistance, is not pulverized and cracked after being used outdoors for a long time, has wide use temperature, can be used for a long time at 50-121 ℃, and the modified high-temperature-resistant polyurea can be used for a long time at the temperature of below 150 ℃.

Preferably, the inner side of the corrosion protection material layer is cooperatively connected with an inner wall spray coating layer, the inner wall spray coating layer is made of polyurethane paint, the inner side of the corrosion protection material layer is cooperatively connected with an inner wall spray coating layer made of polyurethane paint, the polyisocyanate monomer in the polyurethane paint is reacted to form a polymer containing amino (urethane) ester bonds, active isocyanate groups or polyisocyanate monomers in any proportion or combination, the paint can be supplied with excessive isocyanate groups so as to be further reacted to form a film when being applied, and can also be basically free of free isocyanate, such as a one-pack pre-reaction polyurethane paint, which is characterized by being basically free of any free isocyanate, which is usually a reaction product of polyisocyanate and polyol ester of vegetable oil acid, and is cured by means of a metal soap drier, the one-pack moisture-curing polyurethane paint is characterized by the presence of free isocyanate groups, and can be converted into useful coating films by reaction of these isocyanate groups with ambient moisture. One-pack thermosetting polyurethane coating materials characterized in that a sealant is deblocked by heating to generate active isocyanate groups and then reacted with a material containing active hydrogen groups to cure and dry, two-pack catalytic polyurethane coating materials characterized in that one pack in the composition system contains a prepolymer or adduct of free isocyanate groups which can be compounded with a relatively small amount of a catalyst, accelerator or crosslinking agent such as a monomeric polyol or a polyamine contained in a second pack to form a useful coating film, two-pack polyol polyurethane coating materials characterized in that one pack in the composition system contains a prepolymer or adduct or other polyisocyanate which can be used in combination with a large amount of a resin having active hydrogen groups contained in a second pack to form a useful coating film with or without a catalyst, one-pack non-reactive volatile polyurethane coating materials, it is characterized by the substantial absence of any free isocyanate groups or other functional groups and is converted to a solid coating film by evaporation of the solvent.

Preferably, the inner wall spraying layer is sprayed on the outer side of the tube cavity, the main material of the inner wall of the tube cavity is polypropylene, the inner wall spraying layer is sprayed on the tube cavity, the main material of the inner wall of the tube cavity is polypropylene, the polypropylene is PP for short, is a colorless, odorless, nontoxic and semitransparent solid substance, is thermoplastic synthetic resin with excellent performance, is colorless and semitransparent thermoplastic light general plastic, and has chemical resistance, heat resistance, electrical insulation, high-strength mechanical property and good high-wear-resistance processing performance.

Compared with the prior art, the special pipe with high hardness and high compressive strength has the beneficial effects that:

1. according to the special pipe with high hardness and high compressive strength, the paint layer is sprayed on the outer side of the pipe wall, so that the paint layer can protect the outer part of the pipe wall, the pipe wall is prevented from being exposed to the external environment for a long time to rust and influence the use, and the flame retardant material layer and the vacuum layer are arranged in the pipe wall, so that double heat preservation and heat insulation effects are performed on the inner part of the pipe, and the special pipe is safer to use.

2. According to the special pipe with high hardness and high compressive strength, when the pipe is exposed to the external environment for a long time for use, expansion caused by heat and contraction caused by cold and heat alternation in the external environment can occur, the buffer layer is arranged to increase the ductility of the pipe, and the service life of the pipe is prolonged.

Drawings

Fig. 1 is a schematic perspective view of an overall structure of a special pipe with high hardness and high compressive strength according to the present invention;

FIG. 2 is a schematic plan view of a high hardness and high compressive strength special pipe wall according to the present invention;

fig. 3 is a schematic plan view of the tube cavity of the special-shaped tube with high hardness and high compressive strength.

In the figure: 1. a paint layer; 2. a tube wall; 3. a layer of flame retardant material; 4. a vacuum layer; 5. a buffer layer; 6. a heat insulation layer; 7. a layer of corrosion resistant material; 8. spraying a layer on the inner wall; 9. a lumen.

Detailed Description

In order to solve the problem that the heat cannot be completely insulated in the pipe, the heat still can be dissipated in the pipe, the ductility of the pipe is small, and the pipe can crack to influence the use in the long-term use process, the embodiment of the utility model provides the special pipe with high hardness and high compressive strength. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1, 2 and 3, the present embodiment provides a high-hardness high-compressive strength special pipe, including a paint layer 1, the paint layer 1 is sprayed on the outer side of a pipe wall 2, a flame retardant material layer 3 is disposed on the inner side of the pipe wall 2, a vacuum layer 4 is connected on the inner side of the flame retardant material layer 3 in a matching manner, the pipe wall 2 is made of reinforced steel, the flame retardant material layer 3 is mainly made of a high-purity mirror aluminum foil and is organically combined with nano flame retardant bubbles, the paint layer 1 is sprayed on the outer side of the pipe wall 2, the paint layer 1 can provide a protective effect on the outer side of the pipe wall 2, the pipe wall 2 is prevented from rusting and being affected by long-time exposure to the external environment, the flame retardant material layer 3 and the vacuum layer 4 are disposed in the pipe wall 2, the double heat preservation and insulation effects are performed on the inside of the pipe, the use is safer, the main material of the flame retardant material layer 3 is made of the high-purity mirror aluminum foil and is organically combined with the nano flame retardant bubbles, the nano flame-retardant heat-insulating material energy-saving technology adopts an anti-oxidation and corrosion-resistant high-purity mirror aluminum foil reflection technology, the surface reflectivity of the high-purity mirror aluminum foil reaches over 90 percent, heat reaching the surface of the material can be effectively reflected, the heat radiation loss is greatly reduced, the nano antimony pentoxide flame retardant is added into the adhesive glue and the flame-retardant bubble layer to realize the heat insulation and flame-retardant functions of the product, the nano flame-retardant heat-insulating material has good heat insulation, heat preservation and flame-retardant performances, and the heat loss in the pipeline conveying process can be reduced.

In this embodiment, the vacuum layer 4 is disposed during use, and the vacuum layer 4 is used to effectively avoid heat transfer caused by air convection, so that the thermal conductivity can be greatly reduced, and the vacuum heat transfer device has the characteristics of environmental protection, high efficiency and energy saving.

Example 2

Please refer to fig. 1, fig. 2 and fig. 3, which are further improved based on the embodiment 1: the buffer layer 5 is arranged on the inner side of the vacuum layer 4, the buffer layer 5 is made of natural rubber films, when the pipeline is exposed to the external environment for a long time for use, the phenomenon of expansion with heat and contraction with cold can occur due to the alternation of cold and heat in the external environment, the buffer layer 5 is made of natural rubber films, the ductility of the pipeline can be increased, the service life of the pipeline is prolonged, the heat preservation and insulation layer 6 is arranged on the inner side of the buffer layer 5, the main material of the heat preservation and insulation layer 6 is silica aerogel, the heat preservation and insulation layer 6 arranged on the inner side of the buffer layer 5 is made of silica aerogel, the fine nano-network structure of the silica aerogel effectively limits the propagation of local thermal excitation, the solid thermal conductivity of the silicon aerogel is 2-3 orders of magnitude lower than that of a corresponding glass state material, the contribution of gas molecules to heat conduction is inhibited by the nano-pores, the refractive index of the silicon aerogel is close to l, and the annihilation coefficient of infrared light is more than 100, can effectively transmit sunlight and prevent infrared heat radiation of ambient temperature, becomes an ideal transparent heat-insulating material, and has been applied to the aspects of solar energy utilization and building energy conservation. Through the means of doping, the radiation heat conduction of the silicon aerogel can be further reduced, the heat conductivity of the carbon-doped aerogel can be as low as 0.013 w/m.K at normal temperature and normal pressure, the carbon-doped aerogel is a solid material with the lowest heat conductivity, the carbon-doped aerogel is expected to replace polyurethane foam to become a novel refrigerator heat insulation material, the silicon aerogel can be made into a novel high-temperature heat insulation material by doping titanium dioxide, the heat conductivity is only 0.03 w/m.K when 800K is used, the inner side of the heat insulation layer 6 is coated with the anti-corrosion material layer 7, the anti-corrosion material layer 7 is made of polyurea anti-corrosion material, the inner side of the heat insulation layer 6 is coated with the anti-corrosion material layer 7 made of polyurea, the polyurea anti-corrosion material is insensitive to temperature and moisture, the influence of the environmental temperature and the humidity is avoided when in construction, the polyurea can be constructed in a low-temperature environment of-28 ℃, can also be used in a humid and rainy environment, the coating is compact and has no seams, the modified high-temperature-resistant polyurea paint can resist long-term corrosion of media such as water, seawater, acid, alkali, salt, oil and the like, has outstanding chemical medium and soil erosion resistance, does not contain a catalyst, has good ultraviolet light aging resistance, does not pulverize and crack after long-term outdoor use, has wide use temperature, can be used for a long time at 50-121 ℃, can be used for a long time below 150 ℃, is matched and connected with an inner wall spraying layer 8 at the inner side of an anticorrosive material layer 7, is prepared from polyurethane paint at the inner side of the anticorrosive material layer 7, is matched and connected with the inner wall spraying layer 8 prepared from the polyurethane paint at the inner side of the anticorrosive material layer 7, and can react to form a polymer containing ammonia (urethane) ester bonds, active isocyanate groups or polyisocyanate monomers in any proportion or in any proportion when the polyurethane paint is supplied, so as to further react to form a film when the paint is applied, and also substantially free of free isocyanate, such as one-pack pre-reacted polyurethane coatings, characterized by being substantially free of any free isocyanate, which are typically the reaction product of a polyisocyanate and a polyol ester of vegetable oleic acid and which cure by means of a metal soap drier, and one-pack moisture-curable polyurethane coatings, characterized by the presence of free isocyanate groups and which are capable of being converted into a useful film by reaction of these isocyanate groups with ambient moisture. One-pack thermosetting polyurethane coating materials characterized in that a sealant is deblocked by heating to generate active isocyanate groups and then reacted with a material containing active hydrogen groups to cure and dry, two-pack catalytic polyurethane coating materials characterized in that one pack in the composition system contains a prepolymer or adduct of free isocyanate groups which can be compounded with a relatively small amount of a catalyst, accelerator or crosslinking agent such as a monomeric polyol or a polyamine contained in a second pack to form a useful coating film, two-pack polyol polyurethane coating materials characterized in that one pack in the composition system contains a prepolymer or adduct or other polyisocyanate which can be used in combination with a large amount of a resin having active hydrogen groups contained in a second pack to form a useful coating film with or without a catalyst, one-pack non-reactive volatile polyurethane coating materials, the pipe cavity coating is characterized in that the pipe cavity coating is basically free of any free isocyanate group or other functional groups, the pipe cavity coating is mainly converted into a solid coating by volatilization of a solvent, the inner wall spraying layer 8 is sprayed on the outer side of the pipe cavity 9, the main material of the inner wall of the pipe cavity 9 is polypropylene, the inner wall spraying layer 8 is sprayed on the pipe cavity 9, the main material of the inner wall of the pipe cavity 9 is polypropylene, the polypropylene is PP for short, and the pipe cavity coating is a colorless, odorless, nontoxic and semitransparent solid substance, the polypropylene is thermoplastic synthetic resin with excellent performance, is colorless and semitransparent thermoplastic light general plastic, and has chemical resistance, heat resistance, electric insulation, high-strength mechanical property and good high-wear-resistance processing performance.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a special pipe that high rigidity compressive strength is high, includes paint layer (1), its characterized in that: paint layer (1) spraying is in the pipe wall (2) outside, pipe wall (2) inboard is provided with flame retardant material layer (3), flame retardant material layer (3) inboard cooperation is connected with vacuum layer (4), the material of pipe wall (2) is the reinforced steel, the main material of flame retardant material layer (3) is high-purity mirror surface aluminium foil and nanometer fire-retardant bubble organic bonding.

2. A high hardness, high compressive strength profiled tubing as claimed in claim 1, wherein: the buffer layer (5) is installed to vacuum layer (4) inboard, buffer layer (5) are made by natural rubber's film.

3. A high hardness, high compressive strength profiled tubing as claimed in claim 2, wherein: the inner side of the buffer layer (5) is provided with a heat insulation layer (6), and the main material of the heat insulation layer (6) is silicon dioxide aerogel.

4. A high hardness high compressive strength profiled tubing as claimed in claim 3, wherein: the inner side of the heat-insulating layer (6) is coated with an anticorrosive material layer (7), and the anticorrosive material layer (7) is made of polyurea anticorrosive materials.

5. A high hardness high compressive strength profiled tubing as claimed in claim 4, wherein: the inner side of the anticorrosive material layer (7) is connected with an inner wall spraying layer (8) in a matching manner, and the inner wall spraying layer (8) is made of polyurethane paint.

6. A high hardness high compressive strength profiled tubing as claimed in claim 5, wherein: the inner wall spraying layer (8) is sprayed on the outer side of the tube cavity (9), and the main material of the inner wall of the tube cavity (9) is polypropylene.

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