High-hardness high-chromium alloy wear-resistant delivery pipe

Abstract

The utility model relates to the technical field of conveying pipes, and discloses a high-hardness high-chromium alloy wear-resistant conveying pipe which comprises an outer layer pipe, an inner layer pipe is fixedly arranged on the inner surface of the outer layer pipe, flanges are fixedly arranged on the two sides of the outer layer pipe, an external connection mechanism is arranged on one side of the upper end of the outer layer pipe, and the external connection mechanism comprises a metal installation pipe. A rubber sealing column is sleeved with the metal mounting pipe in a threaded mode, the thickness of the inner layer pipe is 20 mm, the outer layer pipe comprises a base layer, a wear-resisting layer is fixedly arranged on the outer surface of the base layer, a through hole is formed in the middle of the rubber sealing column, and a second mounting hole is formed in the position, close to the outer side, of the middle of the upper end of the rubber sealing column. According to the utility model, the double-layer design is adopted, the base layer of the outer-layer pipe is the steel pipe, the wear-resistant layer is formed on the outer surface through the chromium plating technology, and the inner-layer pipe is the high-hardness high-chromium alloy pipe, so that the strength of the steel pipe and the wear resistance of the high-chromium alloy are fully exerted, and the wear resistance and the corrosion resistance of the pipeline are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a conveying pipe technical field especially relates to a high hardness high chromium alloy wear -resisting conveying pipe. BACKGROUND

[0002] Transportation pipe is a kind of pipe for conveying various substances, usually used in industry, construction, agriculture and other fields, usually made of metal, rubber, plastic and other materials, transportation pipe can be used to transport various solid, liquid and gas materials, such as ore, coal, cement, petroleum, natural gas etc.

[0003] The existing ordinary metal transportation pipe only adopts single material, when conveying particles, powder or other abrasive materials, the inner wall of transportation pipe will be subjected to scouring and friction of material, and after long time use, the problem of pipeline damage and leakage is prone to occur.

[0004] Therefore, the person skilled in the art provides a high hardness high chromium alloy wear -resisting conveying pipe to solve the problems in the above background art. UTILITY MODEL CONTENT

[0005] The utility model discloses a kind of high hardness high chromium alloy wear -resisting conveying pipes to solve the problems in the above background art, the device adopts double-layer design, outer tube base layer is steel pipe, outer surface is formed wear layer by chrome plating technology, inner layer pipe uses high hardness high chromium alloy pipe, the strength of steel pipe and the wear resistance of high chromium alloy are fully played, improve the wear resistance and corrosion resistance of pipeline, prolong the service life of pipeline, and outer tube outer surface is fixedly set with multiple reinforcing bars, strengthen the structural strength of pipeline, so that it can withstand greater internal pressure, external load and impact force, reduce the deformation and damage risk of pipeline in the process of operation.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of high hardness high chromium alloy wear -resisting conveying pipe, including outer tube, the inner surface of the outer tube is fixedly set with inner layer pipe, the both sides of the outer tube are fixedly set with flange, the outer tube upper end one side position is provided with external connection mechanism;

[0007] The external connection mechanism includes metal mounting pipe, the rubber sealing column is sleeved with screw thread in the metal mounting pipe, the thickness of the inner layer pipe is 20mm.

[0008] Further, the outer tube includes base layer, the outer surface of the base layer is fixedly set with wear layer.

[0009] Further, through hole is opened in the middle of the rubber sealing column, No. 2 mounting hole is opened in the middle of the upper end of the rubber sealing column, and the outer side position is fixedly set with wear layer.

[0010] Further, a plurality of first mounting holes are formed on one side of each of the two flanges, and a plurality of threaded sleeves of the first mounting holes are provided with threaded rods.

[0011] Further, a plurality of reinforcing ribs are fixedly arranged on the outer surface of the outer layer pipe.

[0012] Further, a sealing ring is fixedly arranged on the outer surface of one of the two flanges.

[0013] Further, a plurality of threaded rods are provided with nuts.

[0014] Further, a threaded groove is formed on the inner surface of the metal mounting pipe.

[0015] The utility model has the following beneficial effects:

[0016] 1. The high-hardness high-chromium-alloy wear-resistant conveying pipe has a double-layer design, the base layer of the outer layer pipe is a steel pipe, the outer surface of the steel pipe is provided with a wear-resistant layer formed by chrome plating, the inner layer pipe is a high-hardness high-chromium-alloy pipe, the strength of the steel pipe and the wear resistance of the high-chromium-alloy pipe are fully utilized, the wear resistance and corrosion resistance of the pipe are improved, the service life of the pipe is prolonged, a plurality of reinforcing ribs are fixedly arranged on the outer surface of the outer layer pipe, the structural strength of the pipe is enhanced, the pipe can bear greater internal pressure, external load and impact force, the deformation and damage risk of the pipe during operation is reduced, and the pipe is convenient to use.

[0017] 2. The high-hardness high-chromium-alloy wear-resistant conveying pipe is provided with an external connection mechanism arranged on one side of the upper end of the outer layer pipe, the external connection mechanism comprises a metal mounting pipe and a rubber sealing column, the rubber sealing column is made of rubber material, the size of the through hole can be adjusted according to the installation equipment (such as a flow detector), the installation equipment is installed through cooperation of the second mounting hole and the screw, a sealing ring is arranged after installation to prevent leakage, when the installation equipment is not needed, a solid sealing column is used to prevent material leakage, and the needs of different use scenarios are met. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a schematic view of the shaft side of the utility model;

[0019] Figure 2 Fig. 2 is a schematic view of the side view of the shaft side of the utility model;

[0020] Figure 3 Fig. 3 is a schematic view of the front view of the shaft side of the utility model;

[0021] Figure 4 Fig. 4 is a schematic view of the assembly of the shaft side of the utility model;

[0022] Figure 5 Fig. 5 is an enlarged schematic view of the structure of the outer layer pipe of the utility model.

[0023] Legend:

[0024] 1, outer tube; 2, inner tube; 3, external mechanism; 4, flange; 5, sealing ring; 6, a mounting hole; 7, threaded rod; 8, nut; 9, reinforcing rib; 101, base layer; 102, wear-resistant layer; 301, metal mounting pipe; 302, rubber sealing column; 303, threaded groove; 304, through hole; 305, No. 2 mounting hole. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Reference Figures 1-5 The utility model provides an embodiment: a kind of high-hardness high-chromium alloy wear-resistant conveying pipe, including outer tube 1, inner layer pipe 2 is fixedly arranged on the inner surface of outer tube 1, flange 4 is fixedly arranged on the both sides of outer tube 1, multiple first mounting holes 6 are set in the side of two flanges 4, the internal thread of multiple first mounting holes 6 is set with threaded rod 7 on the other side, multiple reinforcing ribs 9 are fixedly arranged on the outer surface of outer tube 1, the outer surface of one of the side of two flanges 4 is fixedly arranged with sealing ring 5, nut 8 is threadedly set on the outer surface of multiple threaded rods 7, the thickness of inner layer pipe 2 is 20mm, outer tube 1 includes base layer 101, wear-resistant layer 102 is fixedly arranged on the outer surface of base layer 101;

[0027] Specifically, the outer tube 1 and the inner tube 2 are fixed by hot rolling composite technology, the base layer 101 of the outer tube 1 is a steel pipe, and the wear-resistant layer 102 on the outer surface is formed by chromium plating technology, which can form a chromium coating with high hardness and good wear resistance on the surface of the steel pipe, thereby improving the wear resistance and corrosion resistance of the pipeline. The inner tube 2 is made of high-hardness high-chromium alloy pipe, and the double-layer design can fully utilize the strength of the steel pipe and the wear resistance of the high-chromium alloy, thereby improving the overall performance of the pipeline. The flange 4 is beneficial to the connection of the two conveying pipes. The first mounting hole 6 is beneficial to the cooperation of the threaded rod 7 and the nut 8, thereby facilitating the close connection of the two conveying pipes. The reinforcing rib 9 is beneficial to enhancing the structural strength of the pipeline, so that it can withstand greater internal pressure, external load and impact force, thereby reducing the risk of deformation and damage of the pipeline during operation. The sealing ring 5 is beneficial to enhancing the sealing performance of the connection between the two pipes. The device adopts a double-layer design, the outer tube 1 has a steel pipe base layer 101, and the outer surface forms a wear-resistant layer 102 by chromium plating technology. The inner tube 2 is made of high-hardness high-chromium alloy pipe, which fully utilizes the strength of the steel pipe and the wear resistance of the high-chromium alloy, thereby improving the wear resistance and corrosion resistance of the pipeline and prolonging the service life of the pipeline. In addition, the outer surface of the outer tube 1 is fixedly provided with a plurality of reinforcing ribs 9, which enhances the structural strength of the pipeline, so that it can withstand greater internal pressure, external load and impact force, thereby reducing the risk of deformation and damage of the pipeline during operation.

[0028] Referring to Figure 3 , the outer tube 1 is provided with an external connection mechanism 3 on one side of the upper end. The external connection mechanism 3 comprises a metal mounting pipe 301, a rubber sealing column 302 is threadedly sleeved in the metal mounting pipe 301, a through hole 304 is formed in the middle of the rubber sealing column 302, a second mounting hole 305 is formed in the upper middle of the rubber sealing column 302, and a threaded groove 303 is formed in the inner surface of the metal mounting pipe 301.

[0029] Specifically, the metal mounting pipe 301 is beneficial to being welded and fixed on the outer tube 1, and is also beneficial to the fixed installation of the rubber sealing column 302. The rubber sealing column 302 is made of rubber material, which is convenient for cutting and adjusting the size of the through hole 304 according to the installation equipment. When it is necessary to install a flow detector in the conveying pipe, the rubber sealing column 302 can be processed according to the size of the detector probe to make the through hole 304 fit the probe, thereby improving the sealing performance during use. Then the detector is installed through the cooperation of the second mounting hole 305 and the screw, and finally the sealing ring 5 is arranged on the surface to prevent internal leakage. The threaded groove 303 is beneficial to the threaded installation of the rubber sealing column 302. When the detector is not needed to be installed, a solid sealing column is directly used to prevent the leakage of materials in the conveying pipe.

[0030] Working principle: the outer tube 1 and the inner tube 2 are fixed by hot rolling composite technology, the base layer 101 of the outer tube 1 adopts steel pipe, forms wear-resistant layer 102 on the outer surface through chrome plating technology, the inner tube 2 adopts high hardness high chromium alloy pipe, when two conveying pipes need to be connected, the first mounting hole 6 of the two flanges 4 is aligned, the threaded rod 7 is screwed through the first mounting hole 6 of one side flange 4 and is screwed into the first mounting hole 6 of the other side flange 4, then the nut 8 is screwed on the outer surface of the threaded rod 7, and the two conveying pipes are tightly connected by tightening the nut 8;

[0031] Secondly, when the flow detector needs to be installed in the conveying pipe, the rubber sealing column 302 is processed according to the size of the detector probe head, the through hole 304 is fitted with the probe, the detector is installed through the cooperation of the second mounting hole 305 and the screw, and finally the sealing ring 5 is arranged on the surface to prevent internal leakage of the goods, when the detector does not need to be installed, the solid sealing column is installed in the metal mounting pipe 301 to prevent the leakage of the internal material of the conveying pipe, and people can use it conveniently.

[0032] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A high-hardness, high-chromium alloy wear-resistant conveying pipe, comprising an outer pipe (1), characterized in that: An inner tube (2) is fixedly installed on the inner surface of the outer tube (1), and flanges (4) are fixedly installed on both sides of the outer tube (1). An external connection mechanism (3) is installed on one side of the upper end of the outer tube (1). The external mechanism (3) includes a metal mounting tube (301), and a rubber sealing post (302) is threaded inside the metal mounting tube (301). The inner tube (2) has a thickness of 20 mm.

2. The high-hardness, high-chromium alloy wear-resistant conveying pipe according to claim 1, characterized in that: The outer tube (1) includes a base layer (101), and a wear-resistant layer (102) is fixedly disposed on the outer surface of the base layer (101).

3. The high-hardness, high-chromium alloy wear-resistant conveying pipe according to claim 1, characterized in that: The rubber sealing post (302) has a through hole (304) in the middle and a second mounting hole (305) is provided at the outer side of the upper middle part of the rubber sealing post (302).

4. The high-hardness, high-chromium alloy wear-resistant conveying pipe according to claim 1, characterized in that: Both flanges (4) have multiple No. 1 mounting holes (6) on one side, and multiple No. 1 mounting holes (6) on the other side have internal threads fitted with threaded rods (7).

5. The high-hardness, high-chromium alloy wear-resistant conveying pipe according to claim 1, characterized in that: The outer tube (1) has multiple reinforcing ribs (9) fixedly installed on its outer surface.

6. The high-hardness, high-chromium alloy wear-resistant conveying pipe according to claim 1, characterized in that: A sealing ring (5) is fixedly provided on the outer surface of one of the two flanges (4).

7. The high-hardness, high-chromium alloy wear-resistant conveying pipe according to claim 4, characterized in that: Nuts (8) are threaded onto the outer surface of the multiple threaded rods (7).

8. The high-hardness, high-chromium alloy wear-resistant conveying pipe according to claim 1, characterized in that: The inner surface of the metal mounting tube (301) is provided with a threaded groove (303).

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