CN209943706U - Composite stainless steel thermal insulation pipe - Google Patents
Composite stainless steel thermal insulation pipe Download PDFInfo
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- CN209943706U CN209943706U CN201920750855.4U CN201920750855U CN209943706U CN 209943706 U CN209943706 U CN 209943706U CN 201920750855 U CN201920750855 U CN 201920750855U CN 209943706 U CN209943706 U CN 209943706U
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Abstract
The utility model discloses a compound stainless steel insulating tube aims at overcoming the problem that the layer appears droing easily among the prior art, peels off, it includes first steel pipe, the cover is equipped with the second steel pipe on the first steel pipe, the diameter of second steel pipe is greater than first steel pipe, be formed with the clearance layer between first steel pipe and the second steel pipe, a plurality of through-holes have been seted up on the pipe wall of second steel pipe, the outer cladding of second steel pipe has the polyurethane heat preservation, be formed with the infiltration portion through the through-hole embedding between first steel pipe and second steel pipe on the polyurethane heat preservation, consequently the utility model has the advantages of combine between the plastic steel effectual, long service life and the heat preservation is effectual.
Description
Technical Field
The utility model belongs to the building material field refers in particular to a compound stainless steel insulating tube.
Background
The steel-plastic composite pipe uses seamless steel pipe and welded steel pipe as base pipe, and the outer wall is coated with food-grade polyethylene or epoxy resin and other plastic coatings with strong adhesive force and corrosion resistance.
The steel pipe and the plastic layer of the existing steel-plastic composite pipe are bonded together by the adhesive force of plastic, however, in the daily use process, the plastic layer is easy to fall off and peel off, so that the steel pipe is exposed outside, and the service life of the composite pipe is influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art and the existing problems, the utility model provides a composite stainless steel thermal insulation pipe with good combination effect, long service life and good thermal insulation effect between plastic steels.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a compound stainless steel insulating tube, includes first steel pipe, and the cover is equipped with the second steel pipe on the first steel pipe, and the diameter of second steel pipe is greater than first steel pipe, is formed with the clearance layer between first steel pipe and the second steel pipe, has seted up a plurality of through-holes on the pipe wall of second steel pipe, and the outer cladding of second steel pipe has the polyurethane heat preservation, is formed with the infiltration portion through the through-hole embedding between first steel pipe and second steel pipe on the polyurethane heat preservation.
Preferably, the thickness of the gap layer is between 1 and 3 mm.
After adopting above-mentioned structure, further avoid the intraformational air in clearance to produce the convection current, further improved in the first steel pipe and external heat formation is kept apart.
Preferably, the diameter of the through hole is between 5 and 8 mm.
After adopting above-mentioned structure, further improved infiltration portion and first steel pipe complex intensity, improved the firm of being connected between polyurethane heat preservation and the second steel pipe.
Preferably, the infiltration part is formed between the first steel pipe and the second steel pipe through the through hole by adopting an injection molding process, the polyurethane heat-insulating layer is formed on the second steel pipe by adopting a plastic coating process, and the infiltration part and the polyurethane heat-insulating layer are integrally formed together.
Preferably, the second steel pipe is welded to the first steel pipe.
Preferably, an end of the second steel pipe and a corresponding end of the first steel pipe are welded together.
Preferably, the outer wall of the polyurethane heat-insulating layer is coated with an anticorrosive coating, the anticorrosive coating is made of a high-density polyethylene material, a steel wire mesh framework is arranged between the anticorrosive coating and the polyurethane heat-insulating layer, and the anticorrosive coating and the polyurethane heat-insulating layer are bonded with the steel wire mesh framework through a bonding agent.
Preferably, the adhesive is an HDPE modified adhesive resin.
Compared with the prior art, the utility model outstanding and profitable technological effect is: the polyurethane heat preservation layer is fixed on the second steel pipe through the infiltration part embedded between the first steel pipe and the second steel pipe, through the structural cooperation, the polyurethane heat preservation layer can be stably coated on the outer wall of the second steel pipe, the phenomenon that the polyurethane heat preservation layer drops is avoided, the infiltration part is positioned between the first steel pipe and the second steel pipe, the embedding layer plays a certain supporting effect, the first steel pipe and the second steel pipe are prevented from being adhered together to influence the gap layer, the air convection effect in the gap layer is poor, the temperature of fluid in the first steel pipe is not easy to conduct to the outside, the heat conduction is prevented, the polyurethane heat preservation layer can enable the second steel pipe to form effective thermal isolation with the outside, the heat exchange between the fluid in the first steel pipe in the second steel pipe and the outside is avoided, and the heat is firmly locked in the first steel pipe, therefore, the utility model discloses it is good to have the combination effect between the plastic steels, Long service life and good heat preservation effect.
Drawings
Fig. 1 is a schematic sectional structure of the present invention;
FIG. 2 is a schematic structural view of a second steel pipe according to the present invention;
in the figure: 1-a first steel pipe, 2-a second steel pipe, 3-a polyurethane heat-insulating layer, 4-an anticorrosive layer, 5-a gap layer, 6-a nano silver antibacterial layer, 7-a steel wire mesh framework, 21-a through hole and 31-a penetration part.
Detailed Description
To facilitate understanding of those skilled in the art, the present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 2, a composite stainless steel thermal insulation pipe can be used for transmission of domestic drinking water, industrial fluid and the like, is mainly applied to pipeline laying of indoor home decoration, is mainly formed by compounding steel and plastic, makes up the defects of the steel and the plastic, maintains the advantages of the steel and the plastic, and greatly prolongs the service life of the pipe.
It includes first steel pipe 1, the cover is equipped with second steel pipe 2 on first steel pipe 1, first steel pipe 1 and second steel pipe 2 all adopt the stainless steel to make, the diameter of second steel pipe 2 is greater than first steel pipe 1, be formed with interstitial layer 5 between first steel pipe 1 and the second steel pipe 2, a plurality of through-holes 21 have been seted up on the pipe wall of second steel pipe 2, the outer wall cladding of second steel pipe 2 has polyurethane heat preservation 3, be formed with the infiltration portion 31 of embedding between first steel pipe 1 and second steel pipe 2 through-hole 21 on the polyurethane heat preservation 3.
And infiltration portion 31 is located between first steel pipe 1 and second steel pipe 2, and the embedding layer plays certain supporting effect, avoids first steel pipe 1 and second steel pipe 2 laminating together and influences the heat preservation effect of clearance layer 5.
Be formed with clearance layer 5 between first steel pipe 1 and the second steel pipe 2, the air convection effect is poor in clearance layer 5 for the temperature of the fluid in the first steel pipe 1 is difficult to conduct the external world, heat-conduction has been hindered, and polyurethane heat preservation 3 can make second steel pipe 2 and external world form effectual thermal isolation, avoid the fluid in the first steel pipe 1 in the second steel pipe 2 and the external heat exchange that carries out, thereby the heat is locked firmly in first steel pipe 1, consequently, has the effectual advantage of heat preservation.
More than one through hole 21 is formed, the through holes 21 are uniformly formed in the second steel pipe 2 along the circumferential direction and the radial direction of the second steel pipe 2, and the firmness of the polyurethane heat-insulating layer 3 and the second steel pipe 2 connected together by the penetrating part 31 is further improved.
The thickness of the gap layer 5 is between 1 and 3 mm. The thickness of the first steel pipe 1 and the thickness of the second steel pipe 2 are both 1-3mm, so that convection of air in the gap layer 5 is further avoided, and heat isolation between the inside of the first steel pipe 1 and the outside is further improved.
The diameter of the through hole 21 is between 5 and 8 mm. The matching strength of the penetration part 31 and the first steel pipe 1 is further improved, and the connection firmness between the polyurethane heat-insulating layer 3 and the second steel pipe 2 is improved.
The penetrating part 31 is formed between the first steel pipe 1 and the second steel pipe 2 through the through hole 21 by adopting an injection molding process, the polyurethane heat-insulating layer 3 is formed on the second steel pipe 2 by adopting a plastic coating process, and the penetrating part 31 and the polyurethane heat-insulating layer 3 are integrally formed together.
In the process of producing the composite stainless steel heat-insulating pipe, polyurethane is injected between the first steel pipe 1 and the second steel pipe 2 by an injection molding process under the working environment of 190 ℃, so that an infiltration part 31 is formed; and then forming a polyurethane heat-insulating layer 3 on the outer wall of the second steel pipe 2 by using polyurethane through a plastic coating process, and finally reducing the ambient temperature, so that the infiltration part 31 and the polyurethane heat-insulating layer 3 are cooled and hardened to be formed together. The size of the penetration portion 31 between the first steel pipe 1 and the second steel pipe 2 is larger than that of the through hole 21, so that the penetration portion 31 cannot be separated from the through hole 21, and the separation of the polyurethane insulation layer 3 is avoided.
The second steel pipe 2 is welded to the first steel pipe 1. Thereby realizing the formation of a stable gap layer 5 between the first steel pipe 1 and the second steel pipe 2.
The end part of the second steel pipe 2 is welded with the corresponding end part of the first steel pipe 1, so that the second steel pipe 2 and the second steel pipe 2 can be conveniently welded together.
The outer wall cladding of polyurethane heat preservation 3 has anticorrosive coating 4, and anticorrosive coating 4 adopts high density polyethylene material to make, is provided with wire net skeleton 7 between anticorrosive coating 4 and the polyurethane heat preservation 3, and anticorrosive coating 4, polyurethane heat preservation 3 bond together through adhesive and wire net skeleton 7.
The adhesive is HDPE modified adhesive resin. The HDPE modified bonding resin is a nonpolar thermoplastic resin with high crystallinity, has good heat resistance and cold resistance, good chemical stability, higher rigidity and toughness and mechanical strength, and prolongs the service life of the pipe.
The inner wall of the first steel pipe 1 is coated with a nano silver antibacterial layer 6. The nano silver antibacterial layer 6 has good antibacterial effect and has the effect of inhibiting and killing dozens of pathogenic microorganisms such as staphylococcus aureus, gonococcus, chlamydia and the like.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a compound stainless steel insulating tube, a serial communication port, including first steel pipe (1), the cover is equipped with second steel pipe (2) on first steel pipe (1), the diameter of second steel pipe (2) is greater than first steel pipe (1), be formed with clearance layer (5) between first steel pipe (1) and second steel pipe (2), a plurality of through-holes (21) have been seted up on the pipe wall of second steel pipe (2), the outer wall cladding of second steel pipe (2) has polyurethane heat preservation (3), be formed with on polyurethane heat preservation (3) and imbed infiltration portion (31) between first steel pipe (1) and second steel pipe (2) through-hole (21).
2. A composite stainless steel insulating pipe according to claim 1, characterized in that the thickness of the gap layer (5) is between 1-3 mm.
3. A composite stainless steel insulating pipe according to claim 1 or 2, characterized in that the diameter of said through hole (21) is between 5 and 8 mm.
4. The composite stainless steel thermal insulation pipe according to claim 1, wherein the penetration portion (31) is formed between the first steel pipe (1) and the second steel pipe (2) through the through hole (21) by an injection molding process, the polyurethane thermal insulation layer (3) is formed on the second steel pipe (2) by a plastic coating process, and the penetration portion (31) and the polyurethane thermal insulation layer (3) are integrally formed together.
5. The composite stainless steel thermal insulating pipe according to claim 1, characterized in that the second steel pipe (2) is welded to the first steel pipe (1).
6. A composite stainless steel insulating pipe according to claim 5, characterized in that the ends of the second steel pipe (2) and the corresponding ends of the first steel pipe (1) are welded together.
7. The composite stainless steel heat-insulating pipe according to claim 1, wherein the outer wall of the polyurethane heat-insulating layer (3) is coated with an anticorrosive layer (4), the anticorrosive layer (4) is made of high-density polyethylene material, a steel wire mesh framework (7) is arranged between the anticorrosive layer (4) and the polyurethane heat-insulating layer (3), and the anticorrosive layer (4) and the polyurethane heat-insulating layer (3) are bonded with the steel wire mesh framework (7) through adhesive.
8. The composite stainless steel thermal insulation pipe of claim 7, wherein the adhesive is HDPE modified adhesive resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920750855.4U CN209943706U (en) | 2019-05-23 | 2019-05-23 | Composite stainless steel thermal insulation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920750855.4U CN209943706U (en) | 2019-05-23 | 2019-05-23 | Composite stainless steel thermal insulation pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209943706U true CN209943706U (en) | 2020-01-14 |
Family
ID=69134105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920750855.4U Active CN209943706U (en) | 2019-05-23 | 2019-05-23 | Composite stainless steel thermal insulation pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209943706U (en) |
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2019
- 2019-05-23 CN CN201920750855.4U patent/CN209943706U/en active Active
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