A corrosion-resistant internal spraying device for processing insulated steel pipes

Abstract

This disclosure relates to the field of thermal insulation steel pipe processing technology. One embodiment of this disclosure provides an anti-corrosion internal spraying device for thermal insulation steel pipe processing, which includes a base plate, a support plate, a spray pipe, a moving plate, and a spraying mechanism. The support plate is fixedly connected to the top of the base plate. The spray pipe is set on the support plate through an adjustment mechanism for adjusting the height of the spray pipe to adapt to the central axis of thermal insulation steel pipes of different specifications. One end of the spray pipe is connected to a nozzle for spraying coating onto the inner wall of the thermal insulation steel pipe. The moving plate is set on the top of the base plate through a moving mechanism and can drive the thermal insulation steel pipe to move on the nozzle. The spraying mechanism is set on the top of the base plate for conveying the coating into the spray pipe. Through the above technical solution, the technical problem of the prior art being difficult to adapt to thermal insulation steel pipes of different specifications and having high limitations is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of thermal insulation steel pipe processing technology, specifically, to an anti-corrosion internal spraying device for thermal insulation steel pipe processing. Background Technology

[0002] Insulated steel pipes come in various types, such as steel-jacketed composite pipes and polyurethane insulated steel pipes. They offer excellent performance, superior insulation, low thermal conductivity, strong corrosion and water resistance, convenient construction, short construction period, long service life, and can be equipped with alarm lines to monitor leaks. They are widely used in many fields, including oil and natural gas transportation, centralized heating, chemical pipelines, and central air conditioning ventilation.

[0003] In order to improve the corrosion resistance of existing insulated steel pipes, anti-corrosion coatings are usually sprayed inside the insulated steel pipes during the processing. The existing spraying method involves inserting a spray gun into the inside of the insulated steel pipe for spraying. However, this type of spray gun can only be adapted to insulated steel pipes within a specified specification range. When it is necessary to spray insulated steel pipes of other specifications, it is necessary to change to a corresponding spray gun, which is difficult to adapt to different specifications of insulated steel pipes and has high limitations. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide an anti-corrosion internal spraying device for processing insulated steel pipes, which solves the technical problem that the prior art is difficult to adapt to insulated steel pipes of different specifications and has high limitations.

[0005] According to one aspect, at least one embodiment of the present disclosure provides an anti-corrosion internal spraying device for processing insulated steel pipes, including a base plate, and further including: a support plate, a spray pipe, a movable plate and a spraying mechanism;

[0006] The support plate is fixedly connected to the top of the base plate;

[0007] The spray nozzle is mounted on the support plate via an adjustment mechanism, which is used to adjust the height of the spray nozzle to adapt to the central axis of different specifications of thermal insulation steel pipes. One end of the spray nozzle is connected to a nozzle for spraying paint onto the inner wall of the thermal insulation steel pipe.

[0008] The movable plate is set on the top of the base plate through a moving mechanism, which can drive the heat-insulating steel pipe to move on the nozzle.

[0009] The spraying mechanism is located at the top of the substrate and is used to deliver the coating into the spray nozzle.

[0010] Preferably, the moving mechanism includes: a moving screw, a moving block, and a rotating assembly;

[0011] The movable screw is rotatably connected to the top of the substrate via a first motor, and the output end of the first motor is axially fixedly connected to one end of the movable screw.

[0012] The movable block is fixedly connected to the bottom end of the movable plate. The movable block has a screw hole that is threadedly connected to the movable screw, which can drive the movable plate to move along the nozzle axis under the rotation of the movable screw.

[0013] The rotating component is located at the top of the moving plate and can support the rotation of the insulated steel pipe.

[0014] Furthermore, the adjustment mechanism includes: a slider, a drive block, and a lifting screw;

[0015] The support plate is provided with a sliding groove, and the slider is slidably connected in the sliding groove, which can support the nozzle to move at a height.

[0016] The drive block is fixedly connected to one side of the slider;

[0017] The lifting screw is rotatably connected to the support plate via a second motor. The lifting screw is axially fixed to the output end of the second motor. The drive block has a threaded hole for threaded connection with the lifting screw.

[0018] Furthermore, the spraying mechanism includes: a paint tank and a delivery pipe;

[0019] The paint tank is fixedly connected to the top of the substrate, and a delivery pump for delivering paint is installed at the top of the paint tank. The input end of the delivery pump is connected to the chamber inside the paint tank.

[0020] One end of the delivery pipe is connected to the output end of the delivery pump, and the other end of the delivery pipe is connected to the spray pipe, which can deliver the paint into the spray pipe.

[0021] Furthermore, the rotating assembly includes: a rotating shaft and a third motor;

[0022] The rotating shaft is provided in two parts, and both rotating shafts are rotatably connected to the top of the moving plate through two fixed plates, which can support the insulation steel pipe to rotate on the two rotating shafts.

[0023] The third motor is mounted on one side of one of the fixed plates, and the output end of the third motor passes through the fixed plate and is axially fixedly connected to one end of one of the rotating shafts.

[0024] Furthermore, two guide rails are fixedly connected to the top of the substrate, and sliding boxes are slidably connected to the two guide rails. Both sliding boxes are fixedly connected to the bottom of the moving plate.

[0025] Furthermore, guide grooves are provided on both sides of the slider, and the two inner sidewalls of the slider are in contact with the inner walls of the two guide grooves respectively.

[0026] Furthermore, the delivery pipe is made of soft rubber, which can adapt to the height adjustment of the nozzle.

[0027] Furthermore, a mounting plate is fixedly connected to the top of the support plate, and the second motor is mounted on the top of the mounting plate.

[0028] Furthermore, the other end of the movable screw is rotatably connected to the support plate.

[0029] The beneficial effects of the embodiments disclosed herein are as follows:

[0030] In this disclosure, the height of the spray pipe and nozzle can be easily adjusted according to the different specifications of the insulated steel pipe by setting the adjustment mechanism, so that the nozzle is positioned at the central axis of the insulated steel pipe. By setting the moving mechanism, the insulated steel pipe can be moved and rotated at the same time, so that the paint sprayed by the nozzle can be evenly sprayed on the inner wall of the insulated steel pipe, and the coating is more uniform, thus improving the coating effect. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0032] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present disclosure;

[0033] Figure 2 This is a structural schematic diagram from another angle in one embodiment of the present disclosure;

[0034] Figure 3 For one embodiment of this disclosure Figure 1 A magnified structural diagram of point A in the middle;

[0035] Figure 4 This is a schematic diagram of the structure of the rotating component in one embodiment of the present disclosure.

[0036] In the diagram: 1. Base plate; 2. Support plate; 3. Spray pipe; 4. Nozzle; 5. Moving plate; 6. Moving screw; 7. First motor; 8. Moving block; 9. Slider; 10. Drive block; 11. Lifting screw; 12. Second motor; 13. Paint tank; 14. Delivery pump; 15. Delivery pipe; 16. Rotating shaft; 17. Third motor; 18. Guide rail; 19. Sliding box; 20. Mounting plate. Detailed Implementation

[0037] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0038] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0039] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0040] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0042] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] like Figures 1-4As shown, an anti-corrosion internal spraying device for processing insulated steel pipes according to an embodiment of this disclosure is provided. The device includes a base plate 1, a support plate 2, a spray pipe 3, a moving plate 5, and a spraying mechanism. Two guide rails 18 are fixedly connected to the top of the base plate 1, and sliding boxes 19 are slidably connected to the two guide rails 18. Both sliding boxes 19 are fixedly connected to the bottom of the moving plate 5. The support plate 2 is fixedly connected to the top of the base plate 1. The height of the spray pipe 3 and the nozzle 4 can be adjusted according to different specifications of insulated steel pipes, thereby positioning the nozzle 4 at the central axis of the insulated steel pipe. The moving mechanism allows the insulated steel pipe to move and rotate simultaneously, ensuring that the coating sprayed from the nozzle 4 is evenly applied to the inner wall of the insulated steel pipe, resulting in a more uniform coating and improved spraying effect.

[0044] The nozzle 3 is mounted on the support plate 2 via an adjustment mechanism to adjust its height to accommodate the central axis of different specifications of insulated steel pipes. One end of the nozzle 3 is connected to a spray nozzle 4 for spraying paint onto the inner wall of the insulated steel pipe. The adjustment mechanism includes a slider 9, a drive block 10, and a lifting screw 11. Guide grooves are provided on both sides of the slider 9, and the two inner walls of the slide grooves contact the inner walls of the two guide grooves respectively. A slide groove is provided on the support plate 2, and the slider 9 is slidably connected in the slide groove to support the nozzle 3 for height movement. The drive block 10 is fixedly connected to one side of the slider 9. The lifting screw 11 is rotatably connected to the support plate 2 via a second motor 12. A mounting plate 20 is fixedly connected to the top of the support plate 2, and the second motor 12 is mounted on the top of the mounting plate 20. The lifting screw 11 is axially fixedly connected to the output end of the second motor 12. A screw hole is provided on the drive block 10 for threaded connection with the lifting screw 11.

[0045] The second motor 12 drives the lifting screw 11 to rotate. When the lifting screw 11 rotates, it drives the drive block 10 and the slider 9 to move in the groove, thereby adjusting the height of the nozzle 3 and the nozzle 4, which makes it easier to adapt to different specifications of heat-insulating steel pipes.

[0046] The movable plate 5 is mounted on the top of the base plate 1 via a moving mechanism, which drives the insulated steel pipe to move on the nozzle 4. The moving mechanism includes a moving screw 6, a moving block 8, and a rotating assembly. The other end of the moving screw 6 is rotatably connected to the support plate 2. The moving screw 6 is rotatably connected to the top of the base plate 1 via a first motor 7. The output end of the first motor 7 is axially fixedly connected to one end of the moving screw 6. The moving block 8 is fixedly connected to the bottom end of the movable plate 5. The moving block 8 has a screw hole that is threadedly connected to the moving screw 6, which drives the pipe to move under the rotation of the moving screw 6. The moving plate 5 moves axially along the nozzle 3. The rotating assembly is located at the top of the moving plate 5 and can support the insulation steel pipe to rotate. The rotating assembly includes a rotating shaft 16 and a third motor 17. There are two rotating shafts 16. Both rotating shafts 16 are rotatably connected to the top of the moving plate 5 through two fixed plates 21 and can support the insulation steel pipe to rotate on the two rotating shafts 16. The third motor 17 is installed on one side of one of the fixed plates 21. The output end of the third motor 17 passes through the fixed plate 21 and is axially fixedly connected to one end of one of the rotating shafts 16.

[0047] The first motor 7 drives the moving screw 6 to rotate. When the moving screw 6 rotates, it drives the moving block 8 and the moving plate 5 to move. When the moving plate 5 moves, it drives the insulation steel pipes on the two rotating shafts 16 to move. The third motor 17 drives one of the rotating shafts 16 to rotate. When the rotating shaft 16 rotates, it drives the insulation steel pipe to rotate. Thus, the insulation steel pipe moves and rotates during spraying, so that the paint is evenly sprayed onto the inner wall of the insulation steel pipe.

[0048] The spraying mechanism is located at the top of the substrate 1 and is used to transport the paint into the spray pipe 3. The spraying mechanism includes a paint tank 13 and a delivery pipe 15. The delivery pipe 15 is made of soft rubber and can adapt to the height adjustment of the spray pipe 3. The paint tank 13 is fixedly connected to the top of the substrate 1. A delivery pump 14 for transporting paint is installed at the top of the paint tank 13. The input end of the delivery pump 14 is connected to the chamber inside the paint tank 13. One end of the delivery pipe 15 is connected to the output end of the delivery pump 14, and the other end of the delivery pipe 15 is connected to the spray pipe 3, which can transport the paint into the spray pipe 3.

[0049] The paint is extracted from the water tank by the delivery pump 14, and then transported into the spray pipe 3 through the delivery pipe 15. The paint is then sprayed onto the inner wall of the insulated steel pipe through the nozzle 4.

[0050] Working principle: When it is necessary to spray paint on the inner wall of the insulated steel pipe, the insulated steel pipe is first placed on two rotating shafts 16. Then, the second motor 12 drives the lifting screw 11 to rotate. When the lifting screw 11 rotates, it drives the drive block 10 and the slider 9 to move in the slide groove, thereby adjusting the height of the spray pipe 3 and the nozzle 4, so as to adapt to the central axis of the insulated steel pipe placed on the two rotating shafts 16. Then, the first motor 7 drives the moving screw 6 to rotate. When the moving screw 6 rotates, it drives the moving block 8 and the moving plate 5 to move. When the moving plate 5 moves, it drives the insulation steel pipes on the two rotating shafts 16 to move. The third motor 17 drives one of the rotating shafts 16 to rotate. When the rotating shaft 16 rotates, it drives the insulation steel pipe to rotate, so that the insulation steel pipe moves and rotates at the same time during spraying. During this process, the paint in the water tank is extracted by the delivery pump 14 and delivered into the spray pipe 3 through the delivery pipe 15. The paint is then sprayed onto the inner wall of the insulation steel pipe through the nozzle 4, so that the paint is evenly sprayed onto the inner wall of the insulation steel pipe.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A corrosion-preventing inner spraying apparatus for heat-insulating steel pipe processing, comprising a base plate (1), characterized in that, Also includes: Support plate (2), which is fixedly connected to the top of the base plate (1); The nozzle (3) is set on the support plate (2) by an adjustment mechanism for adjusting the height of the nozzle (3) to adapt to the central axis of the insulation steel pipe of different specifications. One end of the nozzle (3) is connected to a nozzle (4) for spraying the coating onto the inner wall of the insulation steel pipe. The movable plate (5) is set on the top of the base plate (1) by a moving mechanism and can drive the heat-insulating steel pipe to move on the nozzle (4); A spraying mechanism is disposed at the top of the substrate (1) and is used to deliver the coating into the spray pipe (3).

2. The anticorrosive inner spraying apparatus for heat-insulated steel pipe processing according to claim 1, characterized in that, The moving mechanism includes: A movable screw (6) is rotatably connected to the top of the base plate (1) via a first motor (7), and the output end of the first motor (7) is axially fixedly connected to one end of the movable screw (6). The moving block (8) is fixedly connected to the bottom end of the moving plate (5). The moving block (8) has a screw hole that is threadedly connected to the moving screw (6). It can drive the moving plate (5) to move along the axial direction of the nozzle (3) under the rotation of the moving screw (6). A rotating component is provided at the top of the movable plate (5) and is capable of supporting the thermal insulation steel pipe to rotate.

3. The anti-corrosion internal spraying equipment for processing insulated steel pipes according to claim 2, characterized in that, The adjustment mechanism includes: The slider (9) is provided with a groove on the support plate (2), and the slider (9) is slidably connected in the groove, which can support the nozzle (3) to move in height; A drive block (10) is fixedly connected to one side of the slider (9); The lifting screw (11) is rotatably connected to the support plate (2) via the second motor (12). The lifting screw (11) is axially fixed to the output end of the second motor (12). The drive block (10) has a screw hole that is threadedly connected to the lifting screw (11).

4. The anti-corrosion internal spraying equipment for processing insulated steel pipes according to claim 3, characterized in that, The spraying mechanism includes: A paint tank (13) is fixedly connected to the top of the substrate (1). A delivery pump (14) for delivering paint is installed at the top of the paint tank (13). The input end of the delivery pump (14) is connected to the chamber inside the paint tank (13). The delivery pipe (15) has one end connected to the output end of the delivery pump (14) and the other end connected to the spray pipe (3), which can deliver the paint into the spray pipe (3).

5. The anti-corrosion internal spraying equipment for processing insulated steel pipes according to claim 4, characterized in that, The rotating assembly includes: Two rotating shafts (16) are provided. Both rotating shafts (16) are rotatably connected to the top of the movable plate (5) through two fixed plates (21), which can support the heat-insulating steel pipe to rotate on the two rotating shafts (16). The third motor (17) is mounted on one side of one of the fixed plates (21), and the output end of the third motor (17) passes through the fixed plate (21) and is axially fixedly connected to one end of one of the rotating shafts (16).

6. The anti-corrosion internal spraying equipment for processing insulated steel pipes according to claim 5, characterized in that, Two guide rails (18) are fixedly connected to the top of the substrate (1), and slide boxes (19) are slidably connected on the two guide rails (18). Both slide boxes (19) are fixedly connected to the bottom of the movable plate (5).

7. The anti-corrosion internal spraying equipment for processing insulated steel pipes according to claim 6, characterized in that, Guide grooves are provided on both sides of the slider (9), and the two inner walls of the slider are in contact with the inner walls of the two guide grooves respectively.

8. The anti-corrosion internal spraying equipment for processing insulated steel pipes according to claim 7, characterized in that, The delivery pipe (15) is made of soft rubber and can adapt to the height adjustment of the nozzle (3).

9. The anti-corrosion internal spraying equipment for processing insulated steel pipes according to claim 8, characterized in that, The top of the support plate (2) is fixedly connected to the mounting plate (20), and the second motor (12) is mounted on the top of the mounting plate (20).

10. The anti-corrosion internal spraying equipment for processing insulated steel pipes according to claim 9, characterized in that, The other end of the movable screw (6) is rotatably connected to the support plate (2).

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