Expansion pipe feeding and dusting device

Abstract

An expansion pipe feeding and powder scattering device relates to the technical field of driving devices and comprises a platform, a feeding platform is slidably arranged on the platform in the longitudinal direction, a liquid distribution cavity extending in the transverse direction is fixedly connected to the feeding platform, a plurality of hydraulic expansion pipes communicated with the liquid distribution cavity are fixedly connected to the liquid distribution cavity in parallel, and the hydraulic expansion pipes extend in the longitudinal direction. The other end, close to the hydraulic expansion pipes, of the platform is fixedly connected with a powder scattering box, the powder scattering box is located above the hydraulic expansion pipes, and powder falling holes opposite to the hydraulic expansion pipes are formed in the positions, corresponding to the hydraulic expansion pipes, of the bottom of the powder scattering box. The expansion pipe solves the problems that in the prior art, an expansion pipe can only conduct expansion pressure on a single lining steel pipe, and the production efficiency of the bimetal composite pipe is reduced; and the problems that talcum powder is manually smeared on the surface of the expansion pipe in the prior art, and the working efficiency is low are solved.

Description

Technical Field

[0001] This utility model relates to the field of drive device technology, specifically to an expansion tube feeding and powder spreading device. Background Technology

[0002] With the global development of oil and gas extraction and transportation to highly corrosive environments such as oceans and deep wells, the high levels of corrosive substances such as CO2 and H2S in oil and gas fields often lead to significant economic losses and accidents due to pipeline corrosion. These problems include: 1) severe scaling and corrosion in water injection well tubing; 2) corrosion, scaling, and perforation in surface pipelines; 3) uneven wear and corrosion of downhole pipes, resulting in the scrapping of a large number of pipes; and 4) the inability of existing lined and coated pipes to withstand high temperatures, leaving corrosion and uneven wear in deep well sections unresolved. Therefore, improving the corrosion resistance of steel pipes is one of the most important research topics in the current steel pipe industry.

[0003] Bimetallic composite pipes are one of the safest and most economical ways to solve the corrosion problem of oil and gas pipelines. They consist of two different metal pipes: one inner layer primarily resists corrosion, while the other outer layer provides strength support. The pipe layers are tightly bonded together using various deformation and connection techniques. Bimetallic composite pipes maximize the complementary advantages of materials, saving alloying elements and reducing engineering costs. While maintaining the performance of the original base pipe, they improve the pipeline's corrosion resistance and wear resistance, extending its service life. They are a substitute for pure stainless steel pipes, copper pipes, or other corrosion-resistant alloy pipes.

[0004] Commonly used manufacturing methods include: cold forming, hot rolling, hot extrusion composite method, combined bimetallic hydraulic composite method, centrifugal casting or centrifugal aluminothermic method, explosive welding composite method, composite plate welding method, powder metallurgy method, spray forming method, surfacing welding method, laser cladding method, etc. These manufacturing processes all have their own shortcomings, such as complex procedures and low efficiency, or the products produced have defects such as stress, pinholes, and pores.

[0005] To address this issue, a hydraulic expansion process for manufacturing stainless steel-lined bimetallic composite pipes was developed. This process utilizes a pressurization system with multiple elastic expansion bags to simultaneously expand and pressurize multiple composite pipes, causing the stainless steel lining pipe to expand and form a tight bond with the outer base pipe, resulting in a novel composite pipe. This process solves the problems of low efficiency and defects such as stress, pinholes, and bubbles found in existing bimetallic composite pipe manufacturing processes.

[0006] As existing devices are used, the shortcomings of this technology have gradually become apparent, mainly in the following aspects:

[0007] First, existing expansion tubes can only expand and pressurize a single inner steel liner, reducing the production efficiency of bimetallic composite pipes.

[0008] Secondly, before the expansion tube expands and pressurizes the inner steel pipe, it is necessary to coat the surface of the expansion tube with talcum powder to facilitate the separation and demolding of the expansion tube and the inner steel pipe in the later stage. Currently, the talcum powder is applied to the surface of the expansion tube manually, which is inefficient.

[0009] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0010] To address the shortcomings of existing technologies, this utility model provides an expansion tube feeding and powdering device to solve the problems of traditional expansion tubes being able to only expand and pressurize a single inner steel liner, thus reducing the production efficiency of bimetallic composite pipes; and the need to coat the surface of the expansion tube with talcum powder before expanding and pressing the inner steel liner to facilitate the later separation and demolding of the expansion tube and the inner steel liner, which is currently done manually, resulting in low work efficiency.

[0011] To achieve the above objectives, this utility model provides the following technical solution:

[0012] An expansion tube feeding powder spreading device includes a platform with a longitudinally slidable feeding platform. A laterally extending liquid distribution chamber is fixedly connected to the feeding platform. Several hydraulic expansion tubes, communicating with the liquid distribution chamber, are fixedly connected side-by-side to the liquid distribution chamber, and the hydraulic expansion tubes extend longitudinally.

[0013] A powder-spreading box is fixedly connected to the other end of the platform near the hydraulic expansion tube. The powder-spreading box is located above the hydraulic expansion tube, and the bottom of the powder-spreading box has a powder-dropping hole that is opposite to the position of each hydraulic expansion tube.

[0014] As an optimized solution, the platform is provided with a number of support wheels arranged in parallel along the longitudinal direction for each of the hydraulic expansion tubes, and the lower surface of the hydraulic expansion tubes is in frictional contact with the support wheels.

[0015] As an optimized solution, the longitudinal section of the powder-spreading box is funnel-shaped, and the upper end of the powder-spreading box is open.

[0016] As an optimized solution, the lower end of the powder-spreading box is fixedly connected to an arc-shaped bottom shell, and the powder-falling hole is opened on the arc-shaped bottom shell.

[0017] As an optimized solution, a rotating shaft arranged in a horizontal direction is rotatably installed inside the powder dispensing box. The peripheral wall of the rotating shaft is surrounded by material-dispensing blades, and the outer end of the material-dispensing blades is in frictional contact with the inner bottom surface of the arc-shaped bottom shell.

[0018] As an optimized solution, the support wheel has a V-shaped annular guide groove on its wheel wall.

[0019] As an optimized solution, the platform is provided with two longitudinally extending guide rails in parallel, and the feed platform is slidably supported on the guide rails by guide seats.

[0020] As an optimized solution, the bottom of the feed platform is fixedly connected to a bracket, and the guide seat is fixedly connected to the bottom of the bracket.

[0021] As an optimized solution, both ends of the powder-spreading box are fixed to the platform via side frames.

[0022] As an optimized solution, the platform is provided with a powder collection shell located below the powder dispensing box, and the upper end of the powder collection shell is open.

[0023] As an optimized solution, the liquid distribution chamber is fixedly connected to the bottom of the feed platform, and a hydraulic booster system connected to the liquid distribution chamber is also fixedly connected to the bottom of the feed platform.

[0024] As an optimized solution, a motor for driving the rotating shaft is fixedly connected to the outer end wall of the liquid distribution chamber shell.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] By setting up a liquid distribution chamber and fixing several hydraulic expansion tubes in parallel on the liquid distribution chamber, it is possible to fill several hydraulic expansion tubes with liquid at the same time. The liquid distribution chamber is driven to move by the feed platform, which can drive several hydraulic expansion tubes at the same time. This enables several inner steel pipes to be expanded and pressurized at the same time, improving the production efficiency of bimetallic composite pipes.

[0027] By setting up a powder-spreading box on the platform, which is located near the end of the hydraulic expansion tube, the powder-spreading box can automatically spread powder onto the surface of the hydraulic expansion tube during the feeding process. The bottom of the heat dissipation box has powder-spreading holes corresponding to each hydraulic expansion tube, which can make the talcum powder fall accurately onto the hydraulic expansion tube through the powder-falling holes, reducing the amount of talcum powder used. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a top view of the structure of this utility model.

[0031] In the diagram: 1-Platform; 2-Feeding platform; 3-Hydraulic expansion pipe; 4-Liquid distribution chamber; 5-Hydraulic booster system; 6-Guide rail; 7-Guide seat; 8-Support wheel; 9-Powder spreading box; 10-Arc-shaped bottom shell; 11-Rotating shaft; 12-Powder feeding blade; 13-Powder drop hole; 14-Powder collection shell; 15-Side frame. Detailed Implementation

[0032] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0033] like Figure 1 and Figure 2 As shown, the expansion tube feeding powder spreading device includes a platform 1, a feeding platform 2 that slides longitudinally on the platform 1, a liquid distribution chamber 4 that extends laterally fixed to the feeding platform 2, and several hydraulic expansion tubes 3 that are connected to the liquid distribution chamber 4 and are fixedly arranged in parallel on the liquid distribution chamber 4. The hydraulic expansion tubes 3 are arranged longitudinally.

[0034] A powder-spreading box 9 is fixedly connected to the other end of the platform 1 near the hydraulic expansion tube 3. The other end of the hydraulic expansion tube 3 is sealed. The powder-spreading box 9 is located above the hydraulic expansion tube 3. The bottom of the powder-spreading box 9 has a powder-dropping hole 13 that is opposite to each position of the hydraulic expansion tube 3.

[0035] On platform 1, several support wheels 8 are arranged in parallel along the longitudinal direction for each hydraulic expansion tube 3, and the lower surface of the hydraulic expansion tube 3 is in frictional contact with the support wheels 8.

[0036] The powder-spreading box 9 has a funnel-shaped longitudinal section and an opening at the top.

[0037] The lower end of the powder-spreading box 9 is fixed with an arc-shaped bottom shell 10, and the powder-dropping hole 13 is opened on the arc-shaped bottom shell 10.

[0038] A rotating shaft 11 is installed inside the powder dispensing box and is arranged horizontally. The peripheral wall of the rotating shaft 11 is surrounded by material-dispensing blades 12, and the outer end of the material-dispensing blades 12 is in frictional contact with the inner bottom surface of the arc-shaped bottom shell 10.

[0039] The support wheel 8 has a V-shaped annular guide groove on its wheel wall to ensure the precise feeding of the hydraulic expansion tube 3.

[0040] Platform 1 has two longitudinally extending guide rails 6 arranged side by side. The feed platform 2 is slidably supported on the guide rails 6 by guide seats 7. The guide rails 6 and guide seats 7 are driven to slide by a power structure. Since this is a well-known attempt by those skilled in the art and is common in daily life, it is not an innovation of this solution, so it will not be described in detail here.

[0041] The bottom of the feed platform 2 is fixedly connected to a bracket, and the guide seat 7 is fixedly connected to the bottom of the bracket.

[0042] The two ends of the powder-spreading box 9 are fixed to the platform 1 by the side frame 15.

[0043] Platform 1 is located below the powder-spreading box 9 and is equipped with a powder-collecting shell 14, with an opening at the upper end of the powder-collecting shell 14.

[0044] The liquid distribution chamber 4 is fixedly connected to the bottom of the feed platform 2, and a hydraulic booster system 5 connected to the liquid distribution chamber 4 is also fixedly connected to the bottom of the feed platform 2.

[0045] A motor for driving the rotating shaft 11 is fixedly connected to the outer end wall of the liquid distribution chamber shell.

[0046] The structure of the hydraulic booster system 5 is common in daily life and is not an innovation of this solution, so it will not be described in detail here.

[0047] The working principle of this device is as follows:

[0048] By setting up a liquid distribution chamber 4 and fixing several hydraulic expansion tubes 3 in parallel on the liquid distribution chamber 4, it is possible to fill several hydraulic expansion tubes 3 with liquid at the same time. The liquid distribution chamber 4 is driven to move by the feeding platform 2, which can drive several hydraulic expansion tubes 3 at the same time, and can expand and pressurize several inner steel pipes at the same time, thus improving the production efficiency of bimetallic composite pipes.

[0049] By setting a powder-spreading box 9 on platform 1, which is close to the end of the hydraulic expansion tube 3, the powder-spreading box 9 can automatically spread powder on the surface of the hydraulic expansion tube 3 during the feeding process; the bottom of the heat dissipation box is provided with powder-spreading holes corresponding to each hydraulic expansion tube 3, which can make talcum powder fall accurately onto the hydraulic expansion tube 3 through the powder-falling holes, thereby reducing the amount of talcum powder used.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. An expansion tube feeding and powder spreading device, characterized in that: Includes a platform (1), on which a feed platform (2) is slidably mounted along the longitudinal direction, and a liquid distribution chamber (4) extending laterally is fixedly connected to the feed platform (2). Several hydraulic expansion pipes (3) connected to the liquid distribution chamber (4) are fixedly mounted in parallel, and the hydraulic expansion pipes (3) are arranged along the longitudinal direction. A powder-spraying box (9) is fixedly connected to the other end of the platform (1) near the hydraulic expansion tube (3). The powder-spraying box (9) is located above the hydraulic expansion tube (3). The bottom of the powder-spraying box (9) is provided with powder-dropping holes (13) that are opposite to each of the hydraulic expansion tubes (3).

2. The expansion tube feeding and powder spreading device according to claim 1, characterized in that: On the platform (1), a number of support wheels (8) are arranged in parallel along the longitudinal direction for each of the hydraulic expansion tubes (3), and the lower surface of the hydraulic expansion tube (3) is in frictional contact with the support wheels (8).

3. The expansion tube feeding and powder spreading device according to claim 1, characterized in that: The powder-spreading box (9) has a funnel-shaped longitudinal section and an opening at the upper end.

4. The expansion tube feeding and powder spreading device according to claim 3, characterized in that: The lower end of the powder-spreading box (9) is fixedly connected to an arc-shaped bottom shell (10), and the powder-dropping hole (13) is opened on the arc-shaped bottom shell (10).

5. The expansion tube feeding and powder spreading device according to claim 4, characterized in that: The powder-spreading box is rotatably installed with a horizontally arranged rotating shaft (11). The rotating shaft (11) is surrounded by a material-dispensing blade (12). The outer end of the material-dispensing blade (12) is in frictional contact with the inner bottom surface of the arc-shaped bottom shell (10).

6. The expansion tube feeding and powder spreading device according to claim 2, characterized in that: The support wheel (8) has an annular guide groove arranged in a V-shape on its wheel wall.

7. The expansion tube feeding and powder spreading device according to claim 1, characterized in that: The platform (1) is provided with two longitudinally extending guide rails (6) arranged side by side, and the feed platform (2) is slidably supported on the guide rails (6) by a guide seat (7).

8. The expansion tube feeding and powder spreading device according to claim 7, characterized in that: The bottom of the feed platform (2) is fixedly connected to a bracket, and the guide seat (7) is fixedly connected to the bottom of the bracket.

9. The expansion tube feeding and powder spreading device according to claim 1, characterized in that: The two ends of the powder-spreading box (9) are fixed to the platform (1) by side frames (15).

10. The expansion tube feeding and powder spreading device according to claim 1, characterized in that: The platform (1) is provided with a powder collection shell (14) located below the powder dispensing box (9), and the upper end of the powder collection shell (14) is open.

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