Wear-resistant polyurethane composite pipe

Abstract

The utility model discloses a wear-resistant polyurethane composite pipe, which comprises a main body unit, a wear-resistant polyurethane composite pipe and a wear-resistant polyurethane composite pipe, the main body unit comprises two protective pipes, lining steel pipes are arranged in the two protective pipes, two mounting hoops are arranged on the two lining steel pipes together, and the two hoops are symmetrically and fixedly connected with semicircular sealing rings; and the operation unit comprises a plurality of liquid storage tanks, lubricating oil is arranged in the liquid storage tanks, and the liquid storage tanks are fixedly mounted on the mounting hoops. A tool is inserted into a cross-shaped groove in the rotating circular plate, the rotating tool and the rotating circular plate rotate, the rotating circular plate moves towards the liquid storage box, the rotating circular plate drives the sealing sliding circular plate to move through the connecting rod, and then the pressure intensity in the cylinder and the liquid storage box is increased; lubricating oil in the liquid storage tank can be extruded out of the one-way valve to fall to the splicing position of the two lining steel pipes, the situation that the splicing position is corroded due to the fact that the lining steel pipes transport liquid media for a long time can be avoided, and then disassembly is convenient.

Description

Technical Field

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

[0002] A pipeline is a device connected by pipes, pipe connectors and valves for conveying gas, liquid or fluid with solid particles. Usually, the fluid flows from the high-pressure part of the pipeline to the low-pressure part after being pressurized by blowers, compressors, pumps and boilers. The fluid can also be conveyed by its own pressure or gravity. Pipelines are widely used, mainly in water supply, drainage, heat supply, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, water conservancy projects and various industrial devices. Polyurethane lined pipes are suitable for liquid-solid, gas-solid and two-phase flow conveying conditions. They have been used in the transportation of petroleum sands, ore sand transportation in metallurgical mines and chemical medium transportation in chemical plants.

[0003] When transporting existing polyurethane composite pipes, due to the limitation of the length of the pipes themselves, multiple pipes need to be spliced ​​together for transportation. However, when the liquid medium is transported in the pipes for a long time, the joints between the pipes will corrode, making it inconvenient to disassemble and repair the pipes. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems existing in the existing roller brushes, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a wear-resistant polyurethane composite pipe, which is designed to solve the problem that "the existing polyurethane composite pipes need to be spliced ​​together for transportation due to the limitation of the length of the pipes themselves during transportation, but when the liquid medium is transported in the pipes for a long time, the joints between the pipes will corrode, making it inconvenient to disassemble and repair the pipes."

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] A wear-resistant polyurethane composite pipe, comprising:

[0009] The main unit includes two protection tubes, each of which is provided with an inner lining steel tube, and the two inner lining steel tubes are provided with two mounting clamps, and the two clamps are symmetrically fixedly connected with semicircular sealing rings;

[0010] The operating unit includes a plurality of liquid storage tanks, wherein lubricating oil is provided in the liquid storage tanks, the liquid storage tanks are fixedly mounted on a mounting clamp, a cylinder is fixedly connected to the liquid storage tank, a rotating circular plate is provided in the cylinder, a connecting rod is fixedly connected to the rotating circular plate, an end of the connecting rod away from the rotating circular plate is rotatably connected to a sealing sliding circular plate, the sealing sliding circular plate is slidably connected to the inner wall of the cylinder, an end of the liquid storage tank away from the cylinder is fixedly connected to a liquid outlet pipe, the liquid outlet pipe passes through the mounting clamp and the protective pipe and rests on the lining steel pipe, a one-way valve is provided in the liquid outlet pipe, a liquid adding pipe is fixedly inserted on the side wall of the liquid storage tank, a control valve is provided on the liquid adding pipe, and two mounting components are symmetrically provided on the two mounting clamps.

[0011] As a preferred solution of the wear-resistant polyurethane composite pipe described in the utility model, the inner wall of the lined steel pipe is coated with a wear-resistant layer and an anti-corrosion and anti-rust layer, the wear-resistant layer is polyurethane, and the anti-corrosion and anti-rust layer is PETF resin.

[0012] As a preferred solution of the wear-resistant polyurethane composite pipe described in the utility model, wherein: a high-temperature resistant layer is arranged on the protective pipe, a heat-insulating layer is arranged inside the high-temperature resistant layer, and a buffer layer is arranged inside the heat-insulating layer.

[0013] As a preferred solution of the wear-resistant polyurethane composite pipe described in the utility model, the high-temperature resistant layer is high-aluminum fiber, the thermal insulation layer is aluminum silicate composite thermal insulation coating, and the buffer layer is PE pearl cotton.

[0014] As a preferred solution of the wear-resistant polyurethane composite pipe described in the utility model, a cross groove is provided on the rotating circular plate, an external thread is provided on the rotating circular plate, and an internal thread meshing with the external thread is provided on the inner wall of the cylinder.

[0015] As a preferred solution of the wear-resistant polyurethane composite pipe described in the utility model, the mounting assembly includes two mounting plates and mounting bolts, the two mounting plates are respectively fixedly connected to the mounting clamps, the two mounting clamps are each provided with a mounting hole, and the mounting bolts are arranged in the two mounting holes.

[0016] Beneficial effects of the utility model:

[0017] Use a tool to insert into the cross groove on the rotating circular plate, rotate the tool, the rotating circular plate rotates, and the rotating circular plate moves toward the direction of the liquid storage tank. The rotating circular plate drives the sealing sliding circular plate to move through the connecting rod, thereby increasing the pressure in the cylinder and the liquid storage tank, so that the lubricating oil in the liquid storage tank can be squeezed out of the one-way valve and fall into the joint of the two lined steel pipes, which can avoid corrosion at the joint caused by the lined steel pipe transporting liquid medium for a long time, thereby facilitating disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 This is a schematic diagram of the overall front structure of a wear-resistant polyurethane composite pipe proposed by the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the installation clamp;

[0021] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0022] Figure 4 for Figure 1 Schematic diagram of the middle protection tube structure.

[0023] In the figure: 100, main unit; 101, protective pipe; 102, lining steel pipe; 103, mounting clamp; 104, wear-resistant layer; 105, anti-corrosion and anti-rust layer; 106, buffer layer; 107, insulation layer; 108, high temperature resistant layer; 109, semicircular sealing ring;

[0024] 200, operating unit; 201, liquid storage tank; 202, cylinder; 203, rotating circular plate; 204, connecting rod; 205, sealing sliding circular plate; 206, liquid outlet pipe; 207, one-way valve; 208, liquid adding pipe; 209, installation assembly; 209a, installation plate; 209b, installation bolts. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Reference Figure 1-4 The utility model provides a wear-resistant polyurethane composite pipe, comprising:

[0030] The body unit 100 includes two protection tubes 101. The two protection tubes 101 are both provided with inner lining steel tubes 102. The two inner lining steel tubes 102 are commonly provided with two mounting clamps 103. The two clamps 103 are both symmetrically fixedly connected with semicircular sealing rings 109.

[0031] The operation unit 200 includes a plurality of liquid storage tanks 201, wherein lubricating oil is provided in the liquid storage tank 201, the liquid storage tank 201 is fixedly mounted on the mounting clamp 103, a cylinder 202 is fixedly connected to the liquid storage tank 201, a rotating circular plate 203 is provided in the cylinder 202, the rotating circular plate 203 is fixedly connected to a connecting rod 204, the end of the connecting rod 204 away from the rotating circular plate 203 is rotatably connected to a sealing sliding circular plate 205, the sealing sliding circular plate 205 is slidably connected to the inner wall of the cylinder 202, the end of the liquid storage tank 201 away from the cylinder 202 is fixedly connected to a liquid outlet pipe 206, the liquid outlet pipe 206 passes through the mounting clamp 103 and the protective pipe 101 and abuts against the lining steel pipe 102, a one-way valve 207 is provided in the liquid outlet pipe 206, and the liquid storage tank 2 A liquid adding pipe 208 is fixedly inserted on the side wall of 01, and a control valve is arranged on the liquid adding pipe 208. Two mounting assemblies 209 are symmetrically arranged on the two mounting clamps 103. Use a tool to insert into the cross groove on the rotating circular plate 203, rotate the tool, and the rotating circular plate 203 rotates, and the rotating circular plate 203 moves toward the direction of the liquid storage tank 201. The rotating circular plate 203 drives the sealing sliding circular plate 205 to move through the connecting rod 204, thereby increasing the pressure in the cylinder 202 and the liquid storage tank 201, so that the lubricating oil in the liquid storage tank 201 can be squeezed out of the one-way valve 207 and fall into the joint of the two lined steel pipes 102, which can avoid corrosion at the joint caused by the lined steel pipe 102 transporting liquid medium for a long time, and thus facilitate disassembly.

[0032] Among them, the inner wall of the lined steel pipe 102 is coated with a wear-resistant layer 104 and an anti-corrosion and rust-proof layer 105. The wear-resistant layer 104 is polyurethane, and the anti-corrosion and rust-proof layer 105 is PETF resin. The wear-resistant layer 104 can improve the strength of the lined steel pipe 102, and the anti-corrosion and rust-proof layer 105 can prevent the inner wall of the lined steel pipe 102 from being corroded.

[0033] Furthermore, a high temperature resistant layer 108 is provided on the protection pipe 101, a heat preservation layer 107 is provided inside the high temperature resistant layer 108, and a buffer layer 106 is provided inside the heat preservation layer 107, so that the inner lining steel pipe 102 can be protected from the outside to increase the service life.

[0034] Furthermore, the high temperature resistant layer 108 is high aluminum fiber, the thermal insulation layer 107 is aluminum silicate composite thermal insulation coating, and the buffer layer 106 is PE pearl cotton, which protects the inner lining steel pipe 102 from the outside.

[0035] Furthermore, a cross groove is provided on the rotating circular plate 203, an external thread is provided on the rotating circular plate 203, and an internal thread meshing with the external thread is provided on the inner wall of the cylinder 202. A tool is inserted into the cross groove on the rotating circular plate 203, and the tool is rotated to rotate the rotating circular plate 203.

[0036] Furthermore, the mounting assembly 209 includes two mounting plates 209a and mounting bolts 209b. The two mounting plates 209a are respectively fixedly connected to the mounting clamps 103. The two mounting clamps 103 are both provided with mounting holes, and the mounting bolts 209b are arranged in the two mounting holes.

[0037] During use, a tool is inserted into the cross groove on the rotating circular plate 203, and the tool is rotated, so that the rotating circular plate 203 rotates and moves toward the direction of the liquid storage tank 201. The rotating circular plate 203 drives the sealing sliding circular plate 205 to move through the connecting rod 204, thereby increasing the pressure in the cylinder 202 and the liquid storage tank 201, so that the lubricating oil in the liquid storage tank 201 can be squeezed out of the one-way valve 207 and fall into the joint of the two lined steel pipes 102, which can avoid corrosion at the joint caused by the lined steel pipe 102 transporting liquid medium for a long time, thereby facilitating disassembly;

[0038] The wear-resistant layer 104 made of polyurethane can improve the strength of the lining steel pipe 102, the anti-corrosion and rust-proof layer 105 made of PETF resin can prevent the inner wall of the lining steel pipe 102 from being corroded, thereby increasing the service life of the lining steel pipe 102, and the buffer layer 106 made of PE pearl cotton, the insulation layer 107 of aluminum silicate composite insulation coating and the high temperature resistant layer 108 of high aluminum fiber can protect the lining steel pipe 102 from the outside and increase its service life.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A wear-resistant polyurethane composite pipe, characterized in that: include: The main body unit (100) comprises two protection tubes (101), each of the two protection tubes (101) being provided with an inner lining steel tube (102), the two inner lining steel tubes (102) being provided with two mounting clamps (103), and the two clamps (103) being symmetrically fixedly connected with a semicircular sealing ring (109); The operation unit (200) comprises a plurality of liquid storage tanks (201), wherein lubricating oil is provided in the liquid storage tanks (201), wherein the liquid storage tanks (201) are fixedly mounted on a mounting clamp (103), wherein a cylinder (202) is fixedly connected to the liquid storage tank (201), wherein a rotating circular plate (203) is provided in the cylinder (202), wherein the rotating circular plate (203) is fixedly connected to a connecting rod (204), wherein one end of the connecting rod (204) away from the rotating circular plate (203) is rotatably connected to a sealing sliding circular plate (205), wherein the sealing sliding circular plate (205) slides Connected to the inner wall of the cylinder (202), the end of the liquid storage tank (201) facing away from the cylinder (202) is fixedly connected with a liquid outlet pipe (206), the liquid outlet pipe (206) passes through the mounting clamp (103) and the protection pipe (101) and abuts against the inner lining steel pipe (102), a one-way valve (207) is arranged in the liquid outlet pipe (206), a liquid adding pipe (208) is fixedly inserted on the side wall of the liquid storage tank (201), and a control valve is arranged on the liquid adding pipe (208), and two mounting components (209) are symmetrically arranged on the two mounting clamps (103).

2. The wear-resistant polyurethane composite pipe according to claim 1, characterized in that: The inner wall of the lining steel pipe (102) is coated with a wear-resistant layer (104) and an anti-corrosion and anti-rust layer (105), wherein the wear-resistant layer (104) is polyurethane and the anti-corrosion and anti-rust layer (105) is PETF resin.

3. The wear-resistant polyurethane composite pipe according to claim 1, characterized in that: The protection tube (101) is provided with a high temperature resistant layer (108), a heat preservation layer (107) is provided inside the high temperature resistant layer (108), and a buffer layer (106) is provided inside the heat preservation layer (107).

4. The wear-resistant polyurethane composite pipe according to claim 3, characterized in that: The high temperature resistant layer (108) is high aluminum fiber, the thermal insulation layer (107) is aluminum silicate composite thermal insulation coating, and the buffer layer (106) is PE pearl cotton.

5. The wear-resistant polyurethane composite pipe according to claim 1, characterized in that: The rotating circular plate (203) is provided with a cross groove, the rotating circular plate (203) is provided with an external thread, and the inner wall of the cylinder (202) is provided with an internal thread meshing with the external thread.

6. The wear-resistant polyurethane composite pipe according to claim 1, characterized in that: The mounting assembly (209) comprises two mounting plates (209a) and mounting bolts (209b); the two mounting plates (209a) are respectively fixedly connected to the mounting clamps (103); the two mounting clamps (103) are both provided with mounting holes; the mounting bolts (209b) are arranged in the two mounting holes.

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