Self-lubricating high-viscosity material conveying pipe

Abstract

The utility model provides a self-lubricating high-viscosity material conveying pipe which comprises a plurality of self-lubricating pipes connected through flanges, a connector pipe arranged at the end of the self-lubricating pipe through flanges, and a lubricating water injection device arranged on the connector pipe. The self-lubricating pipe comprises an outer sleeve and a lining pipe, wherein the lining pipe is located in the inner wall of the outer sleeve, and the lining pipe and the outer sleeve are coaxially arranged. A lubricating water cavity is formed between the outer sleeve and the lining pipe, a medium channel used for feeding viscous materials is formed in an inner cavity of the lining pipe, and a plurality of lubricating water holes communicated with the lubricating water cavity and the medium channel are evenly distributed in the pipe wall of the lining pipe. The lubricating water injection device can input lubricating water into the lubricating water cavity, the lubricating water enters the medium channel through the lubricating water holes, radial and axial lubricating water films are formed in the medium channel, and therefore the friction force between viscous materials and the pipe wall of the lining pipe is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying pipelines, in particular to a self-lubricating high-viscosity material conveying pipe. Background Art

[0002] The viscosity of the commonly pumped viscous materials such as sludge, sewage, silt, colloidal materials, etc. varies greatly with the solid content and temperature. -3 Pa·s-79×10 -3 Pa·s, this type of material has poor fluidity due to its high viscosity and is accompanied by serious adhesion. Even in a positive pressure conveying system, it often adheres to the inner wall of the pipe, causing increased friction of the material in the pipe, resulting in pipe blockage and inability to convey smoothly.

[0003] The usual pumping pressure range is between 0.4-2Mpa. The materials are transported by metal pipes such as carbon steel pipes or plastic materials such as PE and PVC pipes. However, due to the high viscosity of the materials, the usual transportation distance cannot be transported due to pipe blockage or the maximum transportation distance is 20m, which increases the project cost and affects the production efficiency. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a self-lubricating high-viscosity material conveying pipe, which is used to solve the problems in the prior art that high-viscosity materials have poor fluidity during conveying and are easy to clog the pipeline and cannot be conveyed over long distances.

[0005] In order to achieve the above purpose and other related purposes, the utility model provides the following technical solutions:

[0006] A self-lubricating high-viscosity material conveying pipe comprises a plurality of self-lubricating pipes connected by flanges, a joint pipe arranged at the end of the self-lubricating pipe by flanges, and a lubricating water injection device arranged on the joint pipe, wherein the self-lubricating pipe comprises an outer sleeve, and an inner liner pipe located in the inner wall of the outer sleeve and coaxially arranged with the outer sleeve; a lubricating water cavity is formed between the outer sleeve and the inner liner pipe, a medium channel for introducing viscous materials is formed in the inner cavity of the inner liner pipe, and a plurality of lubricating water holes connecting the lubricating water cavity and the medium channel are evenly distributed on the wall of the inner liner pipe; the lubricating water injection device can input lubricating water into the lubricating water cavity to enter the medium channel through the lubricating water holes, and form radial and axial lubricating water films in the medium channel, thereby reducing the friction between the viscous material and the wall of the inner liner pipe.

[0007] To realize the above technical scheme, the self-lubricating pipe can have a certain bend in any direction and can be set to, for example, 6m / section, and the flange is used to form a relatively sealed space between the lubricating water cavity and the medium channel, forming a complete and relatively long high-viscosity material conveying pipe. The outer sleeve has the functions of wear resistance and protection, and the inner liner is used to pass the viscous material. A sealed lubricating water cavity is formed between the outer sleeve and the inner liner. During the working process, the viscous material is pushed to the medium channel by the pump, and the lubricating water pump injects the lubricating water into the lubricating water cavity. The lubricating water continuously penetrates through the lubricating water hole under the action of pressure and The inner wall of the liner pipe is wetted to form a continuous radial and axial lubricating water film, thereby reducing the friction between the viscous material and the wall of the liner pipe, and the lubricating water can dilute the viscous material, making it easier to push the viscous material to the outlet; in addition, since the problem of high friction of viscous materials has been solved, the conveying distance of viscous materials in this application can be increased to 1KM or further. The pipeline layout of this application is flexible and convenient, which solves the problem that viscous materials cannot be transported by pipeline or cannot be transported over long distances. Through the setting of the self-lubricating pipe, pipe blockage can be prevented and equipment maintenance costs can be reduced.

[0008] In one embodiment of the utility model, the lubricating water injection device includes a lubricating water pump, a lubricating water injection port provided on the outer sleeve, and a lubricating water injection pipe connecting the lubricating water pump and the lubricating water injection port.

[0009] To implement the above technical solution, a lubrication water pump and a lubrication water injection pipe are arranged at the inlet of the high-viscosity material, and 0.5-2.1Mpa positive pressure lubrication water is continuously injected into the lubrication water cavity to reduce the friction resistance of the high-viscosity material.

[0010] In one embodiment of the present invention, a plurality of supporting ribs are provided axially between the outer sleeve and the inner liner.

[0011] To implement the above technical solution, the setting of the support ribs can increase the connection strength between the outer sleeve and the inner liner and improve the rigidity of the overall conveying pipeline. The support ribs can divide the lubricating water cavity into several continuous and enclosed spaces. The advantage of the axial setting of the support ribs is that it can reduce the resistance of the lubricating water in the lubricating water cavity.

[0012] In one embodiment of the present invention, the outer sleeve, the inner lining tube and the supporting ribs are made of rubber, plastic or metal.

[0013] To implement the above technical solution, the outer sleeve, inner liner and support ribs in the present application can be selected according to the usage scenario and the medium. During the processing, the outer sleeve, inner liner and support ribs can be integrally formed to improve the connection strength between them.

[0014] In an embodiment of the present invention, the diameter of the lubricating water hole is 0.1-1 mm.

[0015] To implement the above technical solution, the aperture can be set to a range of 0.1-1 mm or wider according to the diameter of the self-lubricating tube and the conveying medium.

[0016] As described above, the self-lubricating high-viscosity material conveying pipe of the utility model has the following beneficial effects: the self-lubricating pipe can be bent to a certain extent in any direction and can be set to, for example, 6m / section, and the flange is used to form a relatively sealed space between the lubricating water cavity and the medium channel, forming a complete and relatively long high-viscosity material conveying pipe, the outer sleeve has the functions of wear resistance and protection, the inner lining pipe is used to pass the viscous material, and a sealed lubricating water cavity is formed between the outer sleeve and the inner lining pipe. During the working process, the viscous material is pushed to the medium channel by the pump, and the lubricating water pump injects the lubricating water into the lubricating water cavity. The lubricating water is pressurized. The lubricating water holes continuously penetrate and wet the inner wall of the liner pipe to form a continuous radial and axial lubricating water film, thereby reducing the friction between the viscous material and the wall of the liner pipe, and the lubricating water can dilute the viscous material, making it easier to push the viscous material to the outlet. In addition, since the problem of high friction of viscous materials has been solved, the conveying distance of viscous materials in the present application can be increased to 1KM or further. The pipeline layout of the present application is flexible and convenient, which solves the problem that viscous materials cannot be transported by pipeline or cannot be transported over long distances. The setting of the self-lubricating pipe can prevent pipe blockage and reduce equipment maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic diagram of the structure of the utility model.

[0018] Figure 2 Shown is a schematic diagram of the structure of a self-lubricating tube.

[0019] Figure 3 Display as Figure 2 A partial enlarged view of point A in the middle.

[0020] Figure 4 Shown is a cross-sectional view of a self-lubricating tube.

[0021] Component number description

[0022] 1. Flange; 2. Connecting pipe; 3. Outer sleeve; 4. Inner lining pipe; 5. Lubricating water cavity; 6. Medium channel; 7. Lubricating water hole; 8. Lubricating water pump; 9. Lubricating water injection port; 10. Lubricating water injection pipe; 11. Support ribs. DETAILED DESCRIPTION

[0023] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0024] See also Figure 1-Figure 4 The utility model provides a self-lubricating high-viscosity material conveying pipe, including a plurality of self-lubricating pipes connected by flanges 1, a joint pipe 2 arranged at the end of the self-lubricating pipe by the flange 1, and a lubricating water injection device arranged on the joint pipe 2, wherein the self-lubricating pipe includes an outer sleeve 3, and an inner liner pipe 4 located in the inner wall of the outer sleeve 3 and coaxially arranged with the outer sleeve 3; a lubricating water cavity 5 is formed between the outer sleeve 3 and the inner liner pipe 4, and a medium channel 6 for introducing viscous materials is formed in the inner cavity of the inner liner pipe 4, and a plurality of lubricating water holes 7 connecting the lubricating water cavity 5 and the medium channel 6 are evenly distributed on the wall of the inner liner pipe 4; the lubricating water injection device can input lubricating water into the lubricating water cavity 5 to enter the medium channel 6 through the lubricating water holes 7, and form radial and axial lubricating water films in the medium channel 6, thereby reducing the friction between the viscous material and the wall of the inner liner pipe 4.

[0025] The self-lubricating pipe can be bent in any direction and can be set to, for example, 6m / section, and the lubricating water cavity 5 and the medium channel 6 form a relatively sealed space through the flange 1, forming a complete and relatively long high-viscosity material conveying pipe. The outer sleeve 3 has the functions of wear resistance and protection. The inner liner 4 is used to pass the viscous material. A sealed lubricating water cavity 5 is formed between the outer sleeve 3 and the inner liner 4. During the working process, the viscous material is pushed to the medium channel 6 by the pump, and the lubricating water pump 8 injects the lubricating water into the lubricating water cavity 5. The lubricating water continuously penetrates through the lubricating water hole 7 under the action of pressure. And wet the inner wall of the liner pipe 4 to form a continuous radial and axial lubricating water film, thereby reducing the friction between the viscous material and the wall of the liner pipe 4, and the lubricating water can dilute the viscous material, making it easier to push the viscous material to the outlet; in addition, since the problem of high friction of viscous materials has been solved, the conveying distance of viscous materials in this application can be increased to 1KM or further. The pipeline layout of this application is flexible and convenient, which solves the problem that viscous materials cannot be transported by pipeline or cannot be transported over long distances. Through the setting of the self-lubricating pipe, pipe blockage can be prevented and equipment maintenance costs can be reduced.

[0026] The lubricating water injection device comprises a lubricating water pump 8, a lubricating water injection port 9 provided on the outer sleeve 3, and a lubricating water injection pipe 10 connecting the lubricating water pump 8 and the lubricating water injection port 9. The lubricating water pump and the lubricating water injection pipe 10 are arranged at the inlet of the high-viscosity material, and the positive pressure lubricating water of 0.5-2.1Mpa is continuously injected into the lubricating water cavity 5 to reduce the friction resistance of the high-viscosity material.

[0027] A plurality of support ribs 11 are axially arranged between the outer sleeve 3 and the inner liner 4. The arrangement of the support ribs 11 can increase the connection strength between the outer sleeve 3 and the inner liner 4 and improve the rigidity of the overall conveying pipeline. The support ribs 11 can divide the lubricating water cavity 5 into a plurality of continuous and closed spaces. The benefit of the axial arrangement of the support ribs 11 is that the resistance of the lubricating water in the lubricating water cavity 5 can be reduced.

[0028] The outer sleeve 3, the inner liner 4 and the support rib 11 are made of rubber, plastic or metal. The outer sleeve 3, the inner liner 4 and the support rib 11 in the present application can be selected according to the usage scenario and the medium. During the processing, the outer sleeve 3, the inner liner 4 and the support rib 11 can be integrally formed to improve the connection strength between them. The aperture of the lubricating water hole 7 is 0.1-1mm. The aperture can be set to 0.1-1mm or a wider range according to the diameter of the self-lubricating pipe and the conveying medium.

[0029] The utility model self-lubricating pipe can be bent in any direction and can be set to, for example, 6m / section, and the lubricating water cavity 5 and the medium channel 6 form a relatively sealed space through the flange 1, forming a complete and relatively long high-viscosity material conveying pipe. The outer sleeve 3 has the functions of wear resistance and protection, and the inner liner 4 is used to pass the viscous material. A sealed lubricating water cavity 5 is formed between the outer sleeve 3 and the inner liner 4. During the working process, the viscous material is pushed to the medium channel 6 by the pump, and the lubricating water pump 8 injects the lubricating water into the lubricating water cavity 5. The lubricating water is continuously pumped through the lubricating water hole 7 under the action of pressure. It penetrates and wets the inner wall of the liner pipe 4 to form a continuous radial and axial lubricating water film, thereby reducing the friction between the viscous material and the wall of the liner pipe 4, and the lubricating water can dilute the viscous material, making it easier to push the viscous material to the outlet; in addition, since the problem of high friction of viscous materials has been solved, the conveying distance of viscous materials in the present application can be increased to 1KM or further. The pipeline layout of the present application is flexible and convenient, which solves the problem that viscous materials cannot be transported by pipeline or cannot be transported over long distances. Through the setting of the self-lubricating pipe, pipe blockage can be prevented and equipment maintenance costs can be reduced.

[0030] The above is only an illustrative description of the principle and efficacy of the present invention, and is not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A self-lubricating high-viscosity material conveying pipe, comprising a plurality of self-lubricating pipes connected by flanges (1), a joint pipe (2) arranged at the end of the self-lubricating pipe through the flange (1), and a lubricating water injection device arranged on the joint pipe (2), characterized in that: The self-lubricating tube comprises an outer sleeve (3), and an inner lining tube (4) located in the inner wall of the outer sleeve (3) and coaxially arranged with the outer sleeve (3); A lubricating water cavity (5) is formed between the outer sleeve (3) and the inner liner (4); a medium channel (6) for introducing viscous materials is formed in the inner cavity of the inner liner (4); and a plurality of lubricating water holes (7) connecting the lubricating water cavity (5) and the medium channel (6) are evenly distributed on the wall of the inner liner (4); The lubricating water injection device can input lubricating water into the lubricating water cavity (5) and enter the medium channel (6) through the lubricating water hole (7), and form a radial and axial lubricating water film in the medium channel (6), thereby reducing the friction between the viscous material and the wall of the liner pipe (4).

2. The self-lubricating high-viscosity material conveying pipe according to claim 1, characterized in that: The lubricating water injection device comprises a lubricating water pump (8), a lubricating water injection port (9) provided on the outer sleeve (3), and a lubricating water injection pipe (10) connecting the lubricating water pump (8) and the lubricating water injection port (9).

3. The self-lubricating high-viscosity material conveying pipe according to claim 1, characterized in that: A plurality of supporting ribs (11) are arranged axially between the outer sleeve (3) and the inner liner (4).

4. The self-lubricating high-viscosity material conveying pipe according to claim 3, characterized in that: The outer sleeve (3), the inner lining tube (4) and the supporting ribs (11) are made of rubber, plastic or metal.

5. The self-lubricating high-viscosity material conveying pipe according to claim 1, characterized in that: The hole diameter of the lubricating water hole (7) is 0.1-1 mm.

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