Surfacing wear-resistant pipe

Abstract

The utility model relates to the technical field of pipelines, in particular to a surfacing wear-resisting pipe which comprises a pipe body, a butt joint disc and an elastic sealing ring, the pipe body is composed of an outer steel pipe layer, an outer anti-seepage isolation layer, a fine aggregate concrete filling layer, an elastic transition layer and an inner steel pipe layer, the outer anti-seepage isolation layer is arranged on the inner surface layer of the outer steel pipe layer, and the elastic transition layer is arranged on the inner surface layer of the outer steel pipe layer. An inner heat insulation layer is arranged on the inner layer of the outer anti-seepage isolation layer, a hollow interlayer is arranged between the inner heat insulation layer and the outer anti-seepage isolation layer, and the hollow interlayer is filled with a fine aggregate concrete filling layer; an elastic transition layer is arranged on the surface layer of the outer side of the inner heat insulation layer, an inner steel pipe layer is arranged on the surface layer of the inner side of the elastic transition layer, and the elastic transition layer is specifically made of a polyurethane elastomer material; the built-up welding wear-resisting pipe improves the pressure resistance and impact resistance of the pipe body, when the inner steel pipe layer is impacted by a conveying medium, the buffering effect is effectively achieved, damage to the pipe body is reduced, and the service life of the pipe body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a cladding wear-resistant pipe. Background Art

[0002] The cladding wear-resistant pipe is a new type of wear-resistant pipe. It uses steel pipe as the base, and the wear-resistant layer and the base form a strong metallurgical bond of super wear-resistant alloy material. This kind of pipe is directly cladding on the inner wall of the steel pipe by the inner wall CNC fully automatic cladding machine, which is suitable for the production of wear-resistant pipes with small diameters.

[0003] The existing cladding wear-resistant pipe cannot improve the pressure resistance and impact resistance of the pipe body. When the inner steel pipe layer is impacted by the conveying medium, it cannot effectively play a buffering effect and reduce the damage to the pipe body. Summary of the invention

[0004] In view of the problems in the prior art, the utility model provides a cladding wear-resistant pipe, which improves the pressure resistance and impact resistance of the pipe body. When the inner steel pipe layer is impacted by the conveying medium, it effectively plays a buffering effect, reduces damage to the pipe body, and increases the service life of the pipe body.

[0005] The technical solution adopted by the utility model to solve the technical problem is a cladding wear-resistant pipe, including a pipe body, a docking plate and an elastic sealing ring, wherein the pipe body is composed of an outer steel pipe layer, an outer anti-seepage isolation layer, a fine stone concrete filling layer, an elastic transition layer and an inner steel pipe layer, the inner surface of the outer steel pipe layer is provided with an outer anti-seepage isolation layer, the inner layer of the outer anti-seepage isolation layer is provided with an inner heat insulation layer, a hollow interlayer is provided between the inner heat insulation layer and the outer anti-seepage isolation layer, and the hollow interlayer is filled with a fine stone concrete filling layer;

[0006] The outer surface of the inner insulation layer is provided with an elastic transition layer and the inner surface of the elastic transition layer is provided with an inner steel tube layer, the elastic transition layer is specifically made of polyurethane elastomer material, the inner surface of the inner steel tube layer is provided with an inner wear-resistant protective layer and the inner wear-resistant protective layer is specifically made of surfacing chromium carbide alloy material.

[0007] By adopting the above technical solution, the cladding wear-resistant pipe improves the pressure resistance and impact resistance of the pipe body. When the inner steel pipe layer is impacted by the conveying medium, it effectively plays a buffering effect, reduces damage to the pipe body, and increases the service life of the pipe body.

[0008] Specifically, both ends of the tube body are welded with docking plates, and docking screw holes are opened on the docking plates at equal distances.

[0009] Specifically, an elastic sealing ring is bonded to the top of the docking plate and located inside the docking screw hole, and the elastic sealing ring is specifically made of PP material.

[0010] Specifically, the outer surface layer of the tube body is provided with anti-skid protrusions, and the anti-skid protrusions and the outer steel tube layer are integrally formed of the same material.

[0011] By adopting the above technical solution, the anti-skid protrusions are used to improve the anti-skid effect of the pipe body during the laying process, improve the stability of the installation, and the one-piece molding has high integrity and durability.

[0012] Specifically, the outer anti-seepage isolation layer is made of PVC material, and the inner heat insulation layer is made of glass fiber material.

[0013] By adopting the above technical solution, the inner heat insulation layer is made of glass fiber material, which is resistant to high temperatures and has good thermal stability, thereby preventing external heat from being transferred to the inside of the pipe body and improving stability.

[0014] Specifically, longitudinal reinforcing ribs are arranged at equal distances in the fine stone concrete filling layer, and annular positioning ribs are welded at equal distances in the longitudinal reinforcing ribs.

[0015] Beneficial effects of the utility model:

[0016] The utility model discloses a cladding wear-resistant pipe, which utilizes the butt-jointing screw holes on the butt-jointing plate and the matching bolts to facilitate butt-jointing of the pipe bodies for use; the elastic sealing ring is specifically made of PP material, which improves the sealing performance of the connection and prevents leakage; the inner wear-resistant protective layer is specifically made of cladding chromium carbide alloy material; the wear-resistant layer and the substrate are metallurgically bonded, that is, atomically bonded, to improve the wear-resistant effect of the inner surface of the pipe body.

[0017] The utility model discloses a surfacing wear-resistant pipe, which adopts a double-layer steel structure and a fine stone concrete filling layer is filled in the hollow interlayer, which greatly improves the strength and rigidity of the pipe body, and improves the pressure resistance and impact resistance of the pipe body. The elastic transition layer is specifically made of a polyurethane elastomer material with high elasticity and good toughness. When the inner steel pipe layer is impacted by the conveying medium, it effectively plays a buffering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the composition structure of the pipe body material of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the inner wear-resistant protective layer of the utility model.

[0022] In the figure: 1. pipe body; 2. anti-slip protrusion; 3. docking screw hole; 4. docking plate; 5. elastic sealing ring; 6. hollow interlayer; 7. outer steel pipe layer; 8. outer anti-seepage isolation layer; 9. fine stone concrete filling layer; 10. longitudinal reinforcement ribs; 11. annular positioning ribs; 12. inner insulation layer; 13. elastic transition layer; 14. inner steel pipe layer; 15. inner wear-resistant protective layer. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] In order to improve the pressure resistance and impact resistance of the pipe body 1 by surfacing welding, when the inner steel pipe layer 14 is impacted by the conveying medium, it effectively plays a buffering effect, reduces the damage to the pipe body 1, and increases the service life of the pipe body 1. Figure 1-3 As shown, a surfacing wear-resistant pipe described in the utility model comprises a pipe body 1, a docking plate 4 and an elastic sealing ring 5, wherein the pipe body 1 is composed of an outer steel pipe layer 7, an outer anti-seepage isolation layer 8, a fine stone concrete filling layer 9, an elastic transition layer 13 and an inner steel pipe layer 14, wherein the inner surface of the outer steel pipe layer 7 is provided with an outer anti-seepage isolation layer 8, and the inner layer of the outer anti-seepage isolation layer 8 is provided with an inner heat insulation layer 12, and a hollow interlayer 6 is provided between the inner heat insulation layer 12 and the outer anti-seepage isolation layer 8, and the hollow interlayer 6 is filled with a fine stone concrete filling layer 9;

[0025] The outer surface of the inner heat insulation layer 12 is provided with an elastic transition layer 13, and the inner surface of the elastic transition layer 13 is provided with an inner steel tube layer 14. The elastic transition layer 13 is specifically made of polyurethane elastomer material. The inner surface of the inner steel tube layer 14 is provided with an inner wear-resistant protective layer 15, and the inner wear-resistant protective layer 15 is specifically made of surfacing chromium carbide alloy material.

[0026] When in use, the cladding wear-resistant pipe improves the pressure resistance and impact resistance of the pipe body 1 . When the inner steel pipe layer 14 is impacted by the conveying medium, it effectively plays a buffering role, reduces damage to the pipe body 1 , and increases the service life of the pipe body 1 .

[0027] For example, Figure 1 As shown, the utility model also includes that both ends of the tube body 1 are welded with docking plates 4 and docking screw holes 3 are opened on the docking plates 4 at equal distances.

[0028] When in use, the pipe bodies 1 are conveniently butt-jointed with each other by utilizing the butt-joint screw holes 3 and matching bolts on the butt-joint plate 4 .

[0029] For example, Figure 1As shown, the utility model further includes that an elastic sealing ring 5 is bonded to the top of the docking plate 4 and located inside the docking screw hole 3, and the elastic sealing ring 5 is specifically made of PP material.

[0030] When in use, the elastic sealing ring 5 is specifically made of PP material to improve the sealing of the connection and prevent leakage.

[0031] For example, Figure 1 , 2 As shown, the utility model also includes that the outer surface layer of the tube body 1 is provided with anti-skid protrusions 2, and the anti-skid protrusions 2 and the outer steel tube layer 7 are integrally formed of the same material.

[0032] When in use, the anti-skid protrusions 2 are utilized to improve the anti-skid effect of the pipe body 1 during the laying process, thereby improving the stability of the installation. Furthermore, the pipe body 1 is integrally formed, has high integrity, and is durable.

[0033] For example, Figure 2 As shown, the utility model also includes that the outer anti-seepage isolation layer 8 is specifically made of PVC material, and the inner heat insulation layer 12 is specifically made of glass fiber material.

[0034] When in use, the inner heat insulation layer 12 is made of glass fiber material, which is resistant to high temperatures and has good thermal stability, thereby preventing external heat from being transferred to the inside of the pipe body 1 and improving stability.

[0035] For example, Figure 2 As shown, the utility model also includes that longitudinal reinforcing ribs 10 are arranged at equal distances in the fine stone concrete filling layer 9 and annular positioning ribs 11 are welded at equal distances in the longitudinal reinforcing ribs 10 .

[0036] When in use, the fine stone concrete filling layer 9 is improved in its integrity, has high overall strength and good deformation resistance.

[0037] When the utility model is used, the pipe bodies 1 are conveniently connected to each other by using the connecting screw holes 3 on the connecting plate 4 and the matching bolts. The elastic sealing ring 5 is specifically made of PP material to improve the sealing of the connection and prevent leakage.

[0038] The inner wear-resistant protective layer 15 is specifically made of surfacing chromium carbide alloy material. The wear-resistant layer and the substrate are metallurgically bonded, that is, atomically bonded, to improve the wear resistance of the inner surface of the pipe body 1. The double-layer steel structure is adopted and the hollow interlayer 6 is filled with a fine stone concrete filling layer 9, which greatly improves the strength and rigidity of the pipe body 1, and improves the pressure resistance and impact resistance of the pipe body 1.

[0039] The elastic transition layer 13 is specifically made of polyurethane elastomer material with high elasticity and good toughness. When the inner steel pipe layer 14 is impacted by the conveying medium, it effectively plays a buffering role. The outer anti-seepage isolation layer 8 is specifically made of PVC material, which has a significant isolation effect, avoids moisture infiltration, and improves the safety of the pipe body 1.

[0040] The inner insulation layer 12 is made of glass fiber material, which is resistant to high temperatures and has good thermal stability. It prevents external heat from being transferred to the inside of the pipe body 1, thereby improving stability. The surfacing of wear-resistant pipes improves the pressure resistance and impact resistance of the pipe body 1. When the inner steel pipe layer 14 is impacted by the conveying medium, it effectively plays a buffering role, reduces damage to the pipe body 1, and increases the service life of the pipe body 1.

[0041] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A surfacing wear-resistant pipe, characterized in that: The invention comprises a pipe body (1), a docking plate (4) and an elastic sealing ring (5), wherein the pipe body (1) is composed of an outer steel pipe layer (7), an outer anti-seepage isolation layer (8), a fine stone concrete filling layer (9), an elastic transition layer (13) and an inner steel pipe layer (14); the inner surface of the outer steel pipe layer (7) is provided with an outer anti-seepage isolation layer (8); the inner layer of the outer anti-seepage isolation layer (8) is provided with an inner thermal insulation layer (12); a hollow interlayer (6) is provided between the inner thermal insulation layer (12) and the outer anti-seepage isolation layer (8); and the hollow interlayer (6) is filled with a fine stone concrete filling layer (9); The outer surface of the inner heat insulation layer (12) is provided with an elastic transition layer (13), and the inner surface of the elastic transition layer (13) is provided with an inner steel tube layer (14); the elastic transition layer (13) is specifically made of a polyurethane elastomer material; the inner surface of the inner steel tube layer (14) is provided with an inner wear-resistant protective layer (15), and the inner wear-resistant protective layer (15) is specifically made of a surfacing chromium carbide alloy material.

2. The cladding wear-resistant pipe according to claim 1, characterized in that: Both ends of the tube body (1) are welded with docking plates (4), and docking screw holes (3) are provided on the docking plates (4) at equal distances.

3. The cladding wear-resistant pipe according to claim 1, characterized in that: An elastic sealing ring (5) is bonded to the top of the docking plate (4) and located inside the docking screw hole (3); the elastic sealing ring (5) is specifically made of PP material.

4. The cladding wear-resistant pipe according to claim 1, characterized in that: The outer surface layer of the tube body (1) is provided with anti-skid protrusions (2), and the anti-skid protrusions (2) and the outer steel tube layer (7) are integrally formed of the same material.

5. The cladding wear-resistant pipe according to claim 1, characterized in that: The outer anti-seepage isolation layer (8) is specifically made of PVC material, and the inner heat insulation layer (12) is specifically made of glass fiber material.

6. The cladding wear-resistant pipe according to claim 1, characterized in that: Longitudinal reinforcing ribs (10) are arranged at equal distances in the fine stone concrete filling layer (9), and annular positioning ribs (11) are welded at equal distances in the longitudinal reinforcing ribs (10).

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