CN215981238U

CN215981238U - Deep and strong compressive property's of buried degree of depth prefabricated direct-burried insulation steel pipe in advance

Info

Publication number: CN215981238U
Application number: CN202121987440.2U
Authority: CN
Inventors: 叶丽军
Original assignee: Jiangsu Dexin Pipeline Co ltd
Current assignee: Jiangsu Dexin Pipeline Technology Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-03-08
Anticipated expiration: 2031-08-23

Abstract

The utility model discloses a prefabricated directly-buried heat-insulating steel pipe with deep pre-buried depth and strong compressive property, which comprises a heat-insulating steel pipe body, wherein the heat-insulating steel pipe body comprises an outer pipe, a reinforcing ring, an inner pipe and a filling layer, the inner pipe is arranged in the inner cavity of the outer pipe, the filling layer is formed between the outer pipe and the inner pipe, the reinforcing ring is arranged in the inner cavity of the filling layer, the outer wall of the reinforcing ring is fixedly connected with the inner wall of the outer pipe, and the inner wall of the reinforcing ring is fixedly connected with the outer wall of the inner pipe. According to the utility model, the outer pipe, the inner pipe and the filling layer are arranged, so that the device can achieve a good heat preservation effect, the filling layer can be arranged to play a certain supporting and fixing role on the outer pipe and the inner pipe, the use strength of the device is increased, the compression resistance of the device is improved, the hardness of the surface of the outer pipe can be increased by arranging the strengthening layer, the rust resistance of the inner pipe can be improved by arranging the primer layer, and the phenomenon of rusting on the surface of the inner pipe is avoided.

Description

Deep and strong compressive property's of buried degree of depth prefabricated direct-burried insulation steel pipe in advance

Technical Field

The utility model relates to the technical field of heat-insulating steel pipes, in particular to a prefabricated direct-buried heat-insulating steel pipe with deep embedding depth and strong compression resistance.

Background

The heat preservation steel pipe is the steel pipeline that is processed through the heat preservation technology, guarantee that temperature and surface temperature accord with or reach operation requirement in the work steel pipe under the effect of different operational environment and external medium, heat preservation pipeline extensively is used for liquid, gaseous transport pipe network, chemical industry pipeline heat preservation engineering petroleum, chemical industry, central heating heat supply net, central air conditioning air pipe, municipal works etc. current prefabricated direct-burried steel pipe is because the filling layer lacks bearing structure, the filling material is softer, compressive strength is not enough, bury deeply yielding underground to the surface protection effect is relatively poor, life is shorter.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a prefabricated directly-buried heat-insulating steel pipe with deep embedding depth and strong compression resistance, which has the advantages of high compressive strength, good heat-insulating effect and long service life, and solves the problems that the existing prefabricated directly-buried steel pipe has a support structure lacking a filling layer, a filling material is soft, the compressive strength is insufficient, the steel pipe is easy to deform when being embedded deeply, the surface protection effect is poor, and the service life is short.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a dark and strong compressive property's of pre-buried degree of depth prefabricated direct-burried heat preservation steel pipe, includes the heat preservation steel pipe body, the heat preservation steel pipe body includes outer tube, beaded finish, inner tube and filling layer, the inner chamber of outer tube is provided with the inner tube, form the filling layer between outer tube and the inner tube, the inner chamber of filling layer is provided with the beaded finish, the outer wall of beaded finish and the inner wall fixed connection of outer tube, the inner wall of beaded finish and the outer wall fixed connection of inner tube, the outer tube includes first substrate layer, strengthening layer and finish paint layer, the outside fixedly connected with strengthening layer of first substrate layer, the outside fixedly connected with finish paint layer of strengthening layer, the inner tube includes second substrate layer, priming paint layer and corrosion-resistant layer, the inner wall fixedly connected with priming paint layer of second substrate layer, the inner wall fixedly connected with corrosion-resistant layer of priming paint layer.

Preferably, the primer layer has a thickness greater than that of the corrosion-resistant layer, and the corrosion-resistant layer has a thickness of 0.3 mm.

Preferably, the thickness of the reinforcing layer is greater than that of the finishing paint layer, and the thickness of the finishing paint layer is 0.4 mm.

Preferably, the outer wall of the inner tube is fixedly connected with a reinforcing rib, and one end, far away from the inner tube, of the reinforcing rib is fixedly connected with the inner wall of the outer tube.

Preferably, the surface of the reinforcing ring is provided with six through holes, and the through holes are uniformly distributed on the surface of the reinforcing ring at equal intervals.

Preferably, the left side of the heat preservation steel pipe body is fixedly connected with a plug connector, and the right side of the heat preservation steel pipe body is fixedly connected with a plug groove matched with the plug connector for use.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the outer pipe, the inner pipe and the filling layer are arranged, so that the device can achieve a good heat preservation effect, the filling layer can be arranged to play a certain supporting and fixing role on the outer pipe and the inner pipe, the use strength of the device is increased, the compression resistance of the device is improved, the hardness of the surface of the outer pipe can be increased by arranging the strengthening layer, the rust resistance of the inner pipe can be improved by arranging the primer layer, and the phenomenon of rusting on the surface of the inner pipe is avoided.

2. According to the utility model, the corrosion-resistant layer is arranged, the inner wall of the inner pipe can be protected, the wear-resistant and corrosion-resistant effects are achieved, the surface paint layer is arranged, the outer surface of the device can be protected, the anti-aging and corrosion-resistant effects are achieved, the reinforcing ribs are arranged, the auxiliary supporting effect can be achieved between the adjacent reinforcing rings, the compressive strength of the device is further improved, the filling material can be ensured to be communicated by arranging the through holes, the heat loss is reduced, the heat preservation capability of the device is effectively improved, the device can be conveniently assembled and fixed by arranging the inserting grooves and the inserting joints, and the convenience in assembling and using of the device is effectively improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the steel pipe body for thermal insulation according to the present invention;

FIG. 3 is a cross-sectional view of an outer tube of the present invention;

FIG. 4 is a cross-sectional view of the inner tube of the present invention.

In the figure: 1. a heat-insulating steel pipe body; 2. an outer tube; 3. a reinforcement ring; 4. an inner tube; 5. a through hole; 6. a filling layer; 7. inserting grooves; 8. a plug-in connector; 9. reinforcing ribs; 10. a first base material layer; 11. a strengthening layer; 12. a finish paint layer; 13. a second substrate layer; 14. a primer layer; 15. a corrosion resistant layer.

Detailed Description

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The heat-insulating steel pipe body 1, the outer pipe 2, the reinforcing ring 3, the inner pipe 4, the through hole 5, the filling layer 6, the inserting groove 7, the inserting joint 8, the reinforcing rib 9, the first base material layer 10, the reinforcing layer 11, the finish paint layer 12, the second base material layer 13, the primer layer 14 and the corrosion-resistant layer 15 are all universal standard parts or parts known by a person skilled in the art, and the structure and the principle of the heat-insulating steel pipe are known by the person skilled in the art through technical manuals or conventional experimental methods.

Referring to fig. 1-4, a prefabricated directly-buried heat-insulating steel pipe with deep pre-buried depth and strong compressive property comprises a heat-insulating steel pipe body 1, wherein the heat-insulating steel pipe body 1 comprises an outer pipe 2, a reinforcing ring 3, an inner pipe 4 and a filling layer 6, the inner pipe 4 is arranged in an inner cavity of the outer pipe 2, the filling layer 6 is formed between the outer pipe 2 and the inner pipe 4, the reinforcing ring 3 is arranged in an inner cavity of the filling layer 6, the outer wall of the reinforcing ring 3 is fixedly connected with the inner wall of the outer pipe 2, the inner wall of the reinforcing ring 3 is fixedly connected with the outer wall of the inner pipe 4, the outer pipe 2 comprises a first base material layer 10, a reinforcing layer 11 and a finish paint layer 12, the reinforcing layer 11 is fixedly connected with the outer side of the first base material layer 10, the finish paint layer 12 is fixedly connected with the outer side of the reinforcing layer 11, the inner pipe 4 comprises a second base material layer 13, a priming layer 14 and a corrosion-resistant layer 15, the inner wall of the second base material layer 13 is fixedly connected with a priming layer 14, the corrosion-resistant layer 15, the thickness of priming paint layer 14 is greater than the thickness of corrosion-resistant layer 15, the thickness of corrosion-resistant layer 15 is 0.3mm, the thickness of strengthening layer 11 is greater than the thickness of finish paint layer 12, the thickness of finish paint layer 12 is 0.4mm, through setting up corrosion-resistant layer 15, can protect the inner wall of inner tube 4, wear-resistant corrosion-resistant effect has been reached, through setting up finish paint layer 12, can play the guard action to the surface of device, ageing resistance and corrosion resistance's effect has been reached, the outer wall fixedly connected with strengthening rib 9 of inner tube 4, the one end that strengthening rib 9 kept away from inner tube 4 and the inner wall fixed connection of outer tube 2, through setting up strengthening rib 9, can play the effect of auxiliary stay between the adjacent strengthening ring 3, further promoted the equidistant intensity of compressive strength of device, through-hole 5 has been seted up on the surface of strengthening ring 3, the quantity of through-hole 5 is six and evenly distributed in the surface of strengthening ring 3, by arranging the through hole 5, the communication of the filling material can be ensured, the heat loss is reduced, the heat preservation capability of the device is effectively improved, the left side of the heat preservation steel pipe body 1 is fixedly connected with the plug-in connector 8, the right side of the heat preservation steel pipe body 1 is fixedly connected with the plug-in groove 7 matched with the plug-in connector 8 for use, the device can be conveniently assembled and fixed by arranging the plug-in groove 7 and the plug-in connector 8, the convenience of the assembly and use of the device is effectively improved, the device can achieve good heat preservation effect by arranging the outer pipe 2, the inner pipe 4 and the filling layer 6, the outer pipe 2 and the inner pipe 4 can be supported and fixed to a certain extent by arranging the filling layer 6, the service strength of the device is increased, the compression resistance of the device is improved, the hardness of the surface of the outer pipe 2 can be increased by arranging the reinforcing layer 11, the rust resistance of the inner pipe 4 can be improved by arranging the priming paint layer 14, the phenomenon that the surface of the inner tube 4 is rusted is avoided.

When in use, the filling layer 6 is made of rigid polyurethane foam plastic, the outer pipe 2, the inner pipe 4 and the filling layer 6 are arranged, the device can achieve good heat preservation effect, the first base material layer 10 is made of high-density polyethylene, the reinforcing layer 11 is made of a carbon fiber coating, the reinforcing layer 11 is arranged, the hardness of the surface of the outer pipe 2 can be increased, the finish paint layer 12 is made of a nano-particle titanium dioxide coating, the outer surface of the device can be protected by arranging the finish paint layer 12, the anti-aging and corrosion-resistant effects are achieved, the second base material layer 13 is made of high-quality seamless steel, the primer layer 14 is made of water-based inorganic zinc-rich primer, the corrosion resistance of the inner pipe 4 can be improved by arranging the primer layer 14, and the corrosion-resistant layer 15 which avoids corrosion on the surface of the inner pipe 4 is made of epoxy resin anticorrosive paint, through setting up corrosion resistant layer 15, can protect the inner wall of inner tube 4, wear-resisting corrosion resistant effect has been reached, through setting up filling layer 6, can play certain support fixed action to outer tube 2 and inner tube 4, the use strength of device has been increased, the compressive capacity of device has been promoted, through setting up strengthening rib 9, can be to the effect that plays auxiliary stay between the adjacent beaded finish 3, the compressive strength of device has further been promoted, cooperation through the above-mentioned structure, it is high to make the device reach compressive strength, it is effectual to keep warm, long service life's advantage, and is suitable for being generalized to use.

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

1. The utility model provides a prefabricated direct-burried heat preservation steel pipe that dark and compressive property of pre-buried degree of depth is strong, includes heat preservation steel pipe body (1), its characterized in that: the heat preservation steel pipe body (1) comprises an outer pipe (2), a reinforcing ring (3), an inner pipe (4) and a filling layer (6), the inner cavity of the outer pipe (2) is provided with the inner pipe (4), the filling layer (6) is formed between the outer pipe (2) and the inner pipe (4), the inner cavity of the filling layer (6) is provided with the reinforcing ring (3), the outer wall of the reinforcing ring (3) is fixedly connected with the inner wall of the outer pipe (2), the inner wall of the reinforcing ring (3) is fixedly connected with the outer wall of the inner pipe (4), the outer pipe (2) comprises a first base material layer (10), a reinforcing layer (11) and a finish paint layer (12), the outer side of the first base material layer (10) is fixedly connected with the reinforcing layer (11), the outer side of the reinforcing layer (11) is fixedly connected with the finish paint layer (12), the inner pipe (4) comprises a second base material layer (13), a primer layer (14) and a corrosion-resistant layer (15), the inner wall of the second base material layer (13) is fixedly connected with a primer layer (14), and the inner wall of the primer layer (14) is fixedly connected with a corrosion-resistant layer (15).

2. The prefabricated direct-buried heat-insulation steel pipe with deep embedded depth and strong compression resistance as claimed in claim 1, characterized in that: the thickness of the primer layer (14) is greater than that of the corrosion-resistant layer (15), and the thickness of the corrosion-resistant layer (15) is 0.3 mm.

3. The prefabricated direct-buried heat-insulation steel pipe with deep embedded depth and strong compression resistance as claimed in claim 1, characterized in that: the thickness of strengthening layer (11) is greater than the thickness of finish paint layer (12), the thickness of finish paint layer (12) is 0.4 mm.

4. The prefabricated direct-buried heat-insulation steel pipe with deep embedded depth and strong compression resistance as claimed in claim 1, characterized in that: the outer wall fixedly connected with strengthening rib (9) of inner tube (4), the one end that inner tube (4) were kept away from in strengthening rib (9) is connected with the inner wall fixed connection of outer tube (2).

5. The prefabricated direct-buried heat-insulation steel pipe with deep embedded depth and strong compression resistance as claimed in claim 1, characterized in that: through-hole (5) have been seted up on the surface of beaded finish (3), the quantity of through-hole (5) is six and even equidistance distributes on the surface of beaded finish (3).

6. The prefabricated direct-buried heat-insulation steel pipe with deep embedded depth and strong compression resistance as claimed in claim 1, characterized in that: the left side fixedly connected with bayonet joint (8) of heat preservation steel pipe body (1), the right side fixedly connected with of heat preservation steel pipe body (1) cooperates inserting groove (7) that bayonet joint (8) used.