Electric heating equipment for corrosion prevention of petrochemical oil and gas pipeline

Abstract

The invention relates to the technical field of corrosion prevention of petroleum oil and gas pipelines, in particular to electric heating equipment for corrosion prevention of petrochemical oil and gas pipelines, which comprises a support frame, two support rollers which are symmetrically and rotationally connected to the top of the support frame in parallel, and a heat preservation cotton quilt which can be lapped on the two support rollers and is wound with an electric heating wire on the upper side, the front end and the rear end of the heat preservation cotton quilt are each fixedly provided with a stretching and flattening rod, the two sides of the stretching and flattening rods stretch out of the supporting rollers, the two ends of the length of the two supporting rollers are each provided with a positioning mechanism for locking the two stretching and flattening rods, and the two positioning mechanisms can synchronously rotate in the circumferential direction; according to the device, a wire and a heat preservation cotton quilt can be rapidly wound under the condition that a petroleum oil and gas pipeline is not driven to rotate, and the heating uniformity and the anti-corrosion uniformity are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of petroleum oil and gas pipeline anti-corrosion, in particular to an electric heating device for petrochemical oil and gas pipeline anti-corrosion. Background Art

[0002] Petroleum oil and gas pipelines have high requirements for corrosion protection. Electric heating technology is not only used to prevent the solidification of the medium, but also to reduce the condensation of the outer wall of the pipeline by heating the outer wall, thereby reducing corrosion. The presence of condensed water will accelerate the corrosion of the pipeline and affect its service life and safety. Through electric heating technology, the formation of condensed water can be reduced, the service life of the pipeline can be extended, and the maintenance cost can be reduced. In the process of anti-corrosion processing of petroleum oil and gas pipelines, the petroleum oil and gas pipelines are generally placed between two support rollers, and then the wire is wound around the outside of the petroleum oil and gas pipeline while rotating the petroleum oil and gas pipeline, and then the insulation blanket is wound around the outside of the petroleum oil and gas pipeline while rotating the petroleum oil and gas pipeline, and then the guide is energized, so that the oil, especially the outside of the pipeline, is heated through the wire to increase its external anti-corrosion performance. However, in this way, winding the wire and the insulation blanket are both cumbersome, and it is easy to be loosely wound, and then it is easy to have uneven local electric heating. For this reason, a kind of electric heating equipment for anti-corrosion of petrochemical oil and gas pipelines is designed to quickly wind the wire and the insulation blanket without driving the petroleum oil and gas pipeline to ensure the uniformity of heating and the uniformity of anti-corrosion. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the present invention provides an electric heating device for anti-corrosion of petrochemical oil and gas pipelines, which is convenient for quickly winding wires and thermal insulation blankets without driving the petroleum oil and gas pipelines to rotate, thereby ensuring uniform heating and anti-corrosion uniformity.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electric heating device for corrosion protection of petrochemical oil and gas pipelines, comprising a support frame, the top of the support frame is connected to two support rollers in parallel and symmetrical rotation, and also comprises a thermal insulation quilt that can be placed on the two support rollers and has electric heating wires wrapped around the upper side, the front and rear ends of the thermal insulation quilt are fixedly mounted with stretching rods that extend out of the support rollers on both sides, positioning mechanisms for locking the two stretching rods are provided at both ends of the length of the two support rollers, and the two positioning mechanisms can rotate synchronously in the circumferential direction, and also comprises a mobile power supply compatible with the electric heating wires.

[0007] Preferably, the positioning mechanism comprises a rotating ring rotatably connected to the left and right ends of the support frame, a driving cylinder is fixedly mounted on the rotating ring, and an output end of the driving cylinder is fixedly connected to a tray that is slidingly matched with the two stretching rod guides.

[0008] Preferably, a transmission shaft rotatably connected to the support frame is provided below the two support rollers, and both ends of the transmission shaft are transmission-connected to the rotating rings on their respective sides through a transmission assembly.

[0009] Preferably, the electric heating wire is fixedly installed on the thermal insulation quilt in an S shape, and also includes a plurality of pressing lines for fastening the electric heating wire to the thermal insulation quilt, and the pressing lines are fixedly installed on the thermal insulation quilt.

[0010] Preferably, the support comprises two groups of side supports fixedly connected together by a plurality of guide links, the two rotating rings are rotatably connected to the outer sides of the tops of the two side supports respectively, and the support rollers and the transmission shaft are rotatably connected between the two side supports.

[0011] Preferably, the bottoms of the two side supports are provided with grooves, and also include a movable frame that slides with the grooves and the guide connecting rods. The mobile power supply can be placed on the movable frame, and a plurality of universal wheels are installed at the bottom of the movable frame. Plugs are installed at both ends of the electric heating wire, and the mobile power supply is provided with two groups of sockets that are respectively compatible with the two plugs.

[0012] Preferably, limit blocks are fixedly installed on the bottoms of both sides of the two side supports.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the present invention provides an electric heating device for anti-corrosion of petrochemical oil and gas pipelines, which has the following beneficial effects:

[0015] The electric heating device for corrosion protection of petrochemical oil and gas pipelines is provided with a thermal insulation blanket and an electric heating wire, so that the electric heating wire is conveniently embedded in the thermal insulation blanket, and then placed on two support rollers, so that when the petrochemical oil and gas pipeline is placed between the two support rollers, the bottom of the petrochemical oil and gas pipeline is conveniently wrapped, and then the front and rear ends of the thermal insulation blanket are conveniently wrapped around the outside of the petrochemical oil and gas pipeline, and the two stretching rods are aligned, and then the two stretching rods are locked by the positioning mechanisms at both ends, so that the thermal insulation blanket and the electric heating wire are tightly wrapped, and the thermal insulation blanket and the electric heating wire are conveniently wrapped. The mobile power supply can be used to conveniently energize the electric heating wire, thereby facilitating the electric heating anti-corrosion operation of the petrochemical oil and gas pipeline. By enabling the two positioning mechanisms to rotate synchronously in a circumferential direction, it is convenient to adjust the angles of the two positioning mechanisms when the thermal insulation blanket is asymmetrically placed on the two supporting rollers, thereby satisfying the rapid locking and positioning of the two stretching rods. The electric heating equipment for the anti-corrosion of the petrochemical oil and gas pipeline is convenient for quickly winding the wire and the thermal insulation blanket without driving the petroleum oil and gas pipeline to rotate, thereby ensuring the uniformity of heating and anti-corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention wrapping a petrochemical oil and gas pipeline;

[0017] Figure 2 It is a schematic diagram of the structure of the thermal insulation quilt, the electric heating wire, the pressing wire and the stretching rod of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the side support, guide connecting rod, support roller and positioning mechanism of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the side support, guide connecting rod, support roller and positioning mechanism of the present invention in cooperation with other viewing angles;

[0020] Figure 5 The figure is a schematic diagram of the structure of the mobile power supply, the mobile frame and the universal wheel of the present invention.

[0021] Markings in the attached drawings: 1. Side support; 2. Guide connecting rod; 3. Support roller; 4. Thermal insulation quilt; 5. Electric heating wire; 6. Pressing line; 7. Stretching rod; 8. Mobile power supply; 9. Moving frame; 10. Universal wheel; 11. Slot; 12. Rotating ring; 13. Drive cylinder; 14. Tray; 15. Drive shaft; 16. Transmission assembly; 17. Plug; 18. Socket; 19. Limit block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example:

[0024] See also Figure 1-5 , an electric heating device for corrosion protection of petrochemical oil and gas pipelines, including a support frame, the top of which is connected to two support rollers 3 in parallel and symmetrical rotation, and also includes a thermal insulation blanket 4 that can be placed on the two support rollers 3 and has an electric heating wire 5 wrapped around the upper side, and the front and rear ends of the thermal insulation blanket 4 are fixedly installed with stretching rods 7 on both sides of which extend out of the support rollers 3, and the two ends of the two support rollers 3 are provided with positioning mechanisms for locking the two stretching rods 7, and the two positioning mechanisms can rotate synchronously in the circumferential direction, and also includes a mobile power supply 8 compatible with the electric heating wire 5.

[0025] Specifically, the positioning mechanism includes a rotating ring 12 rotatably connected to the left and right ends of the support frame, a driving cylinder 13 is fixedly installed on the rotating ring 12, and the output end of the driving cylinder 13 is fixedly connected to a bracket 14 that is slidingly matched with the two stretching rods 7. Through the driving cylinder 13, it is convenient to push the bracket 14 for feeding movement, and convenient to rotate the rotating ring 12, so that the bracket 14 is adjusted to align with the two stretching rods 7 that are aligned after wrapping the petrochemical oil and gas pipeline, and then the bracket 14 clamps the two stretching rods 7.

[0026] Specifically, a transmission shaft 15 rotatably connected to the support frame is provided at the lower position between the two support rollers 3. Both ends of the transmission shaft 15 are connected to the rotating ring 12 on their respective sides through a transmission assembly 16. Furthermore, the transmission assembly 16 can adopt a sprocket chain or a belt pulley transmission method, and preferably adopts a sprocket chain transmission method. Through a transmission shaft 15 and two transmission assemblies 16, it is convenient to make the two rotating rings 12 rotate synchronously.

[0027] Specifically, the electric heating wire 5 is fixedly installed on the thermal insulation quilt 4 in an S shape, and also includes a plurality of pressing lines 6 for fastening the electric heating wire 5 to the thermal insulation quilt 4. The pressing lines 6 are fixedly installed on the thermal insulation quilt 4 to increase the winding length. The positioning stability of the electric heating wire 5 is increased through the pressing lines 6.

[0028] Specifically, the support includes two groups of side supports 1 fixedly connected together by multiple guide links 2, two rotating rings 12 are rotatably connected to the top outer sides of the two side supports 1, and the support rollers 3 and the transmission shafts 15 are rotatably connected between the two side supports 1. The guide links 2 and the two side supports 1 facilitate the support of the support rollers 3, the transmission shafts 15 and the rotating rings 12.

[0029] Specifically, the bottom of the two side supports 1 are provided with a groove 11, and also include a movable frame 9 that slides with the groove 11 and the guide link 2. The mobile power supply 8 can be placed on the movable frame 9. A plurality of universal wheels 10 are installed at the bottom of the movable frame 9. Plugs 17 are installed at both ends of the electric heating wire 5. The mobile power supply 8 is provided with two groups of sockets 18 that are respectively compatible with the two plugs 17. Through the groove 11, the mobile power supply 8 and the movable frame 9 can be conveniently moved as a whole to a position below the support frame.

[0030] Specifically, the bottoms of both sides of the two side supports 1 are fixedly installed with limit blocks 19, and the limit blocks 19 are used to limit the stretching rod 7 to prevent one side from being too long and easily sliding down from one side.

[0031] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0032] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0033] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0034] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electric heating device for anti-corrosion of petrochemical oil and gas pipelines, characterized by: The invention comprises a support frame, the top of which is connected to two support rollers (3) in a parallel and symmetrical manner, and a heat-insulating quilt (4) which can be placed on the two support rollers (3) and has an electric heating wire (5) wound around the upper side, the front and rear ends of the heat-insulating quilt (4) are fixedly mounted with stretching rods (7) extending out of the support rollers (3) on both sides, the two support rollers (3) are provided with positioning mechanisms at both ends of the length thereof for locking the two stretching rods (7), and the two positioning mechanisms can synchronously rotate in a circumferential direction, and also comprises a mobile power source (8) compatible with the electric heating wire (5).

2. The electric heating device for anti-corrosion of petrochemical oil and gas pipelines according to claim 1 is characterized by: The positioning mechanism comprises a rotating ring (12) rotatably connected to the left and right ends of the support frame, a driving cylinder (13) is fixedly mounted on the rotating ring (12), and an output end of the driving cylinder (13) is fixedly connected to a tray (14) which is slidably matched with the two stretching rods (7).

3. The electric heating device for anti-corrosion of petrochemical oil and gas pipelines according to claim 2 is characterized by: A transmission shaft (15) rotatably connected to the support frame is provided below the two support rollers (3), and both ends of the transmission shaft (15) are transmission-connected to the rotating rings (12) on their respective sides through transmission components (16).

4. The electric heating device for anti-corrosion of petrochemical oil and gas pipelines according to claim 3 is characterized by: The electric heating wire (5) is fixedly mounted on the thermal insulation quilt (4) in an S-shape, and further comprises a plurality of pressing lines (6) for fastening the electric heating wire (5) to the thermal insulation quilt (4); the pressing lines (6) are fixedly mounted on the thermal insulation quilt (4).

5. The electric heating device for anti-corrosion of petrochemical oil and gas pipelines according to claim 4 is characterized by: The support comprises two groups of side supports (1) fixedly connected together by a plurality of guide connecting rods (2), the two rotating rings (12) are respectively rotatably connected to the outer sides of the tops of the two side supports (1), and the support rollers (3) and the transmission shaft (15) are both rotatably connected between the two side supports (1).

6. The electric heating device for anti-corrosion of petrochemical oil and gas pipelines according to claim 5 is characterized by: The bottoms of the two side supports (1) are each provided with a groove (11), and also include a moving frame (9) that is slidably matched with the groove (11) and the guide connecting rod (2); the mobile power source (8) can be placed on the moving frame (9); a plurality of universal wheels (10) are installed at the bottom of the moving frame (9); plugs (17) are installed at both ends of the electric heating wire (5); and the mobile power source (8) is provided with two groups of sockets (18) that are respectively compatible with the two plugs (17).

7. The electric heating device for anti-corrosion of petrochemical oil and gas pipelines according to claim 6 is characterized by: Limiting blocks (19) are fixedly mounted on the bottoms of both sides of the two side supports (1).

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