Pipeline electric heating device

Abstract

The utility model relates to the technical field of pipeline heating, in particular to a pipeline electric heating device which comprises a heating sleeve, an operating rod, a right clamping rod, a left clamping rod, a middle pressing rod, a top plate, rollers, a guide plate and a rotating shaft, the lower end of the right clamping rod is connected with the outer side face of the right heating sleeve, the left clamping rod and the right clamping rod are crossed, and the middle of the left clamping rod and the middle of the right clamping rod are both installed on the rotating shaft. The upper end of the operating rod is connected with the rotating shaft, and the top of the operating rod is C-shaped; the two sides of the guide plate are each provided with a guide hole, the upper end of the left clamping rod and the upper end of the right clamping rod penetrate through the guide holes in the two sides of the guide plate, the guide plate is horizontally arranged, the middle pressing rod is vertically arranged under the guide plate, the top of the middle pressing rod is connected with the bottom face of the guide plate, the bottom of the middle pressing rod is connected with the top plate, and the roller is installed at the bottom of the top plate through the installation base. The heating sleeve is in a corrugated shape in the axial direction. The electric heating device can adjust the heating length and can move on the top of the pipeline, and the pipeline dredging efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline heating, in particular to a pipeline electric heating device. Background Art

[0002] Crude oil extracted by pumping units needs to be transported to a gathering station via pipelines. To prevent the crude oil from clogging the pipelines during transportation, heating cables and electric heating pipes are typically used to heat the pipelines. While underground heating equipment is less susceptible to damage, above-ground heating equipment failure often leads to pipeline blockages. In extremely cold weather, pipelines in these areas can also become clogged.

[0003] In the prior art, the invention patent application publication number CN113175580A provides a heating device connected to the outside of an oil pipeline, which can adjust the angle and height according to the environment so that the heating component can fit the surface of the oil pipeline. It includes a first platform, a second platform, a third platform, a heating component, a horizontal drive component, an angle adjustment component, and a height adjustment component; the second platform is located between the first and third platforms and is arranged parallel to the first platform; the height adjustment component is connected between the first and second platforms; the angle adjustment component is connected between the second and third platforms; the horizontal drive component is installed on the third platform; there are two groups of heating components, each group of heating components includes an arc-shaped heating plate, a control element, and a base; the arc-shaped heating plate is installed on the base; the control element is installed inside the base; the bases of the two groups of heating components are both connected to the horizontal drive component and are arranged facing each other.

[0004] In the process of realizing the present utility model, the inventors found that there are at least the following problems in the prior art: 1. The heating device in the patented technology can only heat a fixed length of pipeline. In actual work, the length of the pipeline blockage is not fixed, and the device in the patented technology cannot meet the demand; 2. In extremely cold weather, after the pipeline is heated and unblocked, the crude oil is only partially thawed. After moving forward a distance to one end, it may be blocked again due to freezing, and a heating device is required to be moved to the top of the pipeline for heating. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the utility model develops an electric pipeline heating device, which can adjust the heating length and can move on the top of the pipeline, thereby improving the pipeline dredging efficiency.

[0006] The technical solution to the technical problem solved by the present invention is as follows: an embodiment of the present invention provides a pipeline electric heating device, comprising two semi-cylindrical heating sleeves, the pipeline electric heating device also comprising an operating rod, a right clamping rod, a left clamping rod, a middle pressure rod, a top plate, a roller, a guide plate, and a rotating shaft. The openings of the two heating sleeves are arranged opposite to each other, the lower end of the right clamping rod is connected to the outer side surface of the right heating sleeve, the lower end of the left clamping rod is connected to the outer side surface of the left heating sleeve, the left clamping rod crosses the right clamping rod, and the middle parts of the left clamping rod and the right clamping rod are both installed on the rotating shaft; the upper end of the operating rod is connected to the outer side surface of the right heating sleeve The top of the operating rod is C-shaped and connected to the rotating shaft; a guide hole is provided on each side of the guide plate, and the upper ends of the left clamping rod and the right clamping rod pass through the guide holes on both sides of the guide plate respectively. The guide plate is arranged horizontally, and the middle pressure rod is arranged vertically directly below the guide plate. The top of the middle pressure rod is connected to the bottom surface of the guide plate, and the bottom of the middle pressure rod is connected to the top plate. The roller is installed on the bottom of the top plate through the mounting seat; the heating sleeve is corrugated along the axial direction, and the operating rod, right clamping rod, left clamping rod, middle pressure rod, top plate, roller, guide plate, and rotating shaft are respectively arranged in a group at both ends of the heating sleeve.

[0007] As an optimization, the roller is arranged just below the top plate, and rollers are arranged on both sides of the roller. The rollers are installed in the mounting seat through bearings, and the mounting seat is installed at the bottom of the top plate.

[0008] As an optimization, three rollers are arranged directly below the top plate. The three rollers are distributed along the circumference of the outer surface of the pipeline. One roller is arranged directly below the top plate, and the other two rollers are symmetrically arranged on both sides of the top plate.

[0009] As an optimization, a counterweight is further provided at the bottom of the operating rod.

[0010] As an optimization, the electric pipeline heating device also includes a pressure plate and a spring. A guide hole is provided on each side of the pressure plate. The upper ends of the left and right clamping rods extend through the guide holes on either side of the pressure plate. The pressure plate is positioned horizontally above the guide plate, and the spring is positioned between the pressure plate and the guide plate. Stops are provided at the tops of the left and right clamping rods. Both sides of the pressure plate are constantly engaged by the stoppers. The spring constantly pushes the pressure plate toward the rotating shaft, spreading the two heating jackets apart, overcoming the weight of the two heating jackets and maintaining the two heating jackets in the spread state.

[0011] As an optimization, a vertical guide rod is further provided on the top of the guide plate, a vertical guide hole is provided on the pressure plate, and the upper end of the guide rod passes through the guide hole in the pressure plate.

[0012] As an optimization, the heating sleeve includes a sleeve body and a sealing plate. The sleeve body is semi-cylindrical, and the sleeve wall is corrugated along the axial direction. A sealing plate is provided at each end of the sleeve body. The sealing plate is semi-circular, and the inner diameter of the sealing plate is equal to the outer diameter of the pipeline.

[0013] As an optimization, the heating jacket also includes a guide ring and support rods. The guide ring is positioned in the middle of the outer portion of the jacket, with multiple guide rings evenly spaced along the axial direction of the jacket. The support rods extend through each guide ring, with stops positioned at each end. Because the jacket's corrugated wall is prone to axial collapse and bending, the guide rings and support rods prevent jacket deformation.

[0014] As an optimization, the heating sleeve further includes a heating rod, which is semi-annular and perpendicular to the axis of the sleeve, and multiple heating rods are evenly arranged on the inner side of the sleeve. The heating rod is connected to a power supply through a wire, and a switch is set on the wire.

[0015] The effects provided in the content of the utility model are only the effects of the embodiments, rather than all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0016] 1. By setting the heating jacket to a corrugated shape, the heating length can be adjusted by controlling the two operating levers at both ends of the heating jacket; by setting rollers and dragging the operating levers, the electric heating device can be moved on the top of the pipeline through the rollers, thereby improving the efficiency of pipeline dredging.

[0017] 2. By setting a counterweight at the bottom of the operating rod, the two heating jackets can be merged by the weight of the counterweight without pulling down the operating rod during operation, and at the same time, it can ensure that the two heating jackets are always in a merged state during the heating process.

[0018] 3. By setting a pressure plate and a spring, the two heating sleeves can be maintained in an open state. Increasing the friction between the left clamping rod, the right clamping rod and the rotating shaft can also achieve the same effect.

[0019] 4. By setting a guide rod between the guide plate and the pressure plate, the two can always be kept in a parallel state, thereby improving the stability of the device.

[0020] 5. By setting a sealing plate at each end of the sleeve, the sealing performance of the heating sleeve to the heating position of the pipeline is improved, and the heating efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an overall structural diagram of an embodiment of the present utility model.

[0022] Figure 2 This is an overall structural diagram of the working state of an embodiment of the utility model.

[0023] Figure 3 This is a front view of an embodiment of the utility model in working state.

[0024] Figure 4 This is a front view of a heating sleeve in an embodiment of the present invention.

[0025] Figure 5 This is a left side view of a heating jacket in one embodiment of the present invention.

[0026] Figure 6 This is a rear view of a heating jacket in one embodiment of the present invention.

[0027] Among them: operating rod 1, counterweight 2, right clamping rod 3, left clamping rod 4, middle pressure rod 5, top plate 6, roller 7, guide plate 8, pressure plate 9, spring 10, heating sleeve 11, rotating shaft 12, sleeve body 111, sealing plate 112, guide ring 113, support rod 114, heating rod 115. DETAILED DESCRIPTION

[0028] In order to clearly illustrate the technical features of this solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0029] Figures 1 to 6 An embodiment of the present invention is as follows: Figure 1 As shown, a pipeline electric heating device includes two semi-cylindrical heating sleeves 11, the pipeline electric heating device also includes an operating rod 1, a right clamping rod 3, a left clamping rod 4, a middle pressure rod 5, a top plate 6, a roller 7, a guide plate 8, and a rotating shaft 12. The openings of the two heating sleeves 11 are arranged opposite to each other, the lower end of the right clamping rod 3 is connected to the outer side of the right heating sleeve 11, the lower end of the left clamping rod 4 is connected to the outer side of the left heating sleeve 11, the left clamping rod 4 crosses the right clamping rod 3, and the middle parts of the left clamping rod 4 and the right clamping rod 3 are both installed on the rotating shaft 12; the upper end of the operating rod 1 is connected to the rotating shaft 12, and the top of the operating rod 1 is The guide plate 8 is C-shaped. A guide hole is provided on each side of the guide plate 8. The upper ends of the left clamping rod 4 and the right clamping rod 3 extend through the guide holes on either side of the guide plate 8. The guide plate 8 is positioned horizontally, and the intermediate pressure rod 5 is positioned vertically directly below the guide plate 8. The top of the intermediate pressure rod 5 is connected to the bottom of the guide plate 8, and the bottom of the intermediate pressure rod 5 is connected to the top plate 6. Rollers 7 are mounted on the bottom of the top plate 6 via mounting brackets. Three rollers 7 are positioned directly below the top plate 6, distributed along the circumference of the outer surface of the pipe. One roller 7 is positioned directly below the top plate 6, and the other two rollers 7 are symmetrically positioned on either side of the top plate 6. Rollers 7 are positioned on either side of the rollers 7, which are mounted in mounting brackets via bearings. The mounting brackets are mounted on the bottom of the top plate 6. A counterweight 2 is also provided at the bottom of the operating lever 1. By providing the counterweight 2 at the bottom of the operating lever 1, the two heating jackets 11 can be merged during operation by the weight of the counterweight 2 without pulling down the operating lever 1, ensuring that the two heating jackets 11 remain merged during the heating process.

[0030] The C-shape at the top of the operating rod 1 bypasses the pipeline, and the counterweight 2 at the bottom of the operating rod 1 is located directly below the center of the pipeline electric heating device.

[0031] The pipeline electric heating device also includes a pressure plate 9 and a spring 10. A guide hole is provided on each side of the pressure plate 9. The upper ends of the left clamping rod 4 and the right clamping rod 3 pass through the guide holes on both sides of the pressure plate 9. The pressure plate 9 is horizontally arranged above the guide plate 8, and the spring 10 is arranged between the pressure plate 9 and the guide plate 8. A stopper is provided on the top of the left clamping rod 4 and the right clamping rod 3. The two sides of the pressure plate 9 are always stuck on the stopper. The spring 10 always pushes the pressure plate 9 in the direction close to the rotating shaft 12, spreading the two heating sleeves 11, overcoming the influence of the weight of the two heating sleeves 11, and maintaining the spread state of the two heating sleeves 11. By providing the pressure plate 9 and the spring 10, the spread state of the two heating sleeves 11 can be maintained. Increasing the friction between the left clamping rod 4, the right clamping rod 3 and the rotating shaft 12 can also achieve the same effect.

[0032] A vertical guide rod is further provided on the top of the guide plate 8, and a vertical guide hole is provided on the pressure plate 9, and the upper end of the guide rod passes through the guide hole in the pressure plate 9. By providing the guide rod between the guide plate 8 and the pressure plate 9, the two can always be kept in a parallel state, thereby improving the stability of the device.

[0033] like Figure 3 As shown, the heating sleeve 11 is corrugated in the axial direction, and the operating rod 1, the right clamping rod 3, the left clamping rod 4, the middle pressure rod 5, the top plate 6, the roller 7, the guide plate 8, and the rotating shaft 12 are respectively arranged in a group at both ends of the heating sleeve 11.

[0034] like Figures 4 to 6 The heating sleeve 11 shown includes a sleeve body 111 and a sealing plate 112. The sleeve body 111 is semi-cylindrical, and the wall of the sleeve body 111 is corrugated in the axial direction. A sealing plate 112 is provided at each end of the sleeve body 111. The sealing plate 112 is semi-circular, and the inner diameter of the sealing plate 112 is equal to the outer diameter of the pipeline. By providing a sealing plate 112 at each end of the sleeve body 111, the sealing performance of the heating sleeve 11 to the heating position of the pipeline is improved, and the heating efficiency is improved. The heating sleeve 11 also includes a guide ring 113 and a support rod 114. The guide ring 113 is provided in the middle of the outer side of the sleeve body 111. A plurality of guide rings 113 are evenly provided along the axial direction of the sleeve body 111. The support rod 114 passes through each guide ring 113, and blocks are provided at both ends of the support rod 114. Because the sleeve 111 has a corrugated wall, it is prone to axial collapse and bending. The guide ring 113 and support rod 114 prevent deformation of the sleeve 111. The heating sleeve 11 also includes a semi-annular heating rod 115, which is perpendicular to the axis of the sleeve 111. Multiple heating rods 115 are evenly spaced on the inside of the sleeve 111. The heating rods 115 are connected to a power source via wires, which are equipped with switches.

[0035] When the pipeline needs to be heated, first manually open the two heating sleeves 11, and move the guide plate 8 close to the rotating shaft 12; then use the operating lever 1 to move the electric heating device to the top of the pipeline to be heated, and make the roller 7 contact the top of the pipeline; pull down the operating lever 1, the guide plate 8 remains in position under the support of the medium pressure rod 5, the rotating shaft 12 moves down, the guide plate 8 moves away from the rotating shaft 12, the angle between the left clamping rod 4 and the right clamping rod 3 becomes smaller, and the two heating sleeves 11 merge into a complete cylinder and wrap the pipeline; at this time, start the heating rod 115 in the heating sleeve 11 to heat. The heating length can be adjusted by controlling the two operating levers 1 at both ends of the heating sleeve 11; drag the operating lever 1, and the electric heating device can move on the top of the pipeline via the roller 7, improving the efficiency of pipeline dredging.

[0036] Although the above describes the specific implementation methods of the utility model in conjunction with the accompanying drawings, it does not limit the scope of protection of the utility model. On the basis of the technical solution of the utility model, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the utility model.

Claims

1. A pipeline electric heating device, comprising two semi-cylindrical heating jackets (11), characterized in that: The pipeline electric heating device also includes an operating rod (1), a right clamping rod (3), a left clamping rod (4), a middle pressure rod (5), a top plate (6), a roller (7), a guide plate (8), and a rotating shaft (12). The openings of the two heating sleeves (11) are arranged opposite to each other. The lower end of the right clamping rod (3) is connected to the outer side of the right heating sleeve (11), and the lower end of the left clamping rod (4) is connected to the outer side of the left heating sleeve (11). The left clamping rod (4) crosses the right clamping rod (3). The middle parts of the left clamping rod (4) and the right clamping rod (3) are both installed on the rotating shaft (12); the upper end of the operating rod (1) is connected to the rotating shaft (12), and the top of the operating rod (1) is C-shaped; the two sides of the guide plate (8) are respectively provided with A guide hole, the upper ends of the left clamping rod (4) and the right clamping rod (3) respectively pass through the guide holes on both sides of the guide plate (8), the guide plate (8) is horizontally arranged, the middle pressure rod (5) is vertically arranged directly below the guide plate (8), the top of the middle pressure rod (5) is connected to the bottom surface of the guide plate (8), the bottom of the middle pressure rod (5) is connected to the top plate (6), and the roller (7) is installed on the bottom of the top plate (6) through the mounting seat; the heating sleeve (11) is corrugated in the axial direction, and the operating rod (1), the right clamping rod (3), the left clamping rod (4), the middle pressure rod (5), the top plate (6), the roller (7), the guide plate (8), and the rotating shaft (12) are respectively arranged in a group at both ends of the heating sleeve (11).

2. The electric pipeline heating device according to claim 1, characterized in that: The roller (7) is arranged just below the top plate (6), and rollers are arranged on both sides of the roller (7). The rollers are installed in the mounting seat through bearings, and the mounting seat is installed at the bottom of the top plate (6).

3. The electric pipeline heating device according to claim 1, characterized in that: Three rollers (7) are arranged directly below the top plate (6). The three rollers (7) are distributed along the circumference of the outer surface of the pipeline. One roller (7) is arranged directly below the top plate (6), and the other two rollers (7) are symmetrically arranged on both sides of the top plate (6).

4. The electric pipeline heating device according to claim 1, characterized in that: A counterweight (2) is also provided at the bottom of the operating rod (1).

5. The electric pipeline heating device according to claim 1, characterized in that: The pipeline electric heating device also includes a pressure plate (9) and a spring (10). A guide hole is respectively provided on both sides of the pressure plate (9). The upper ends of the left clamping rod (4) and the right clamping rod (3) respectively pass through the guide holes on both sides of the pressure plate (9). The pressure plate (9) is horizontally arranged above the guide plate (8), and the spring (10) is arranged between the pressure plate (9) and the guide plate (8).

6. The electric pipeline heating device according to claim 5, characterized in that: A vertical guide rod is also provided on the top of the guide plate (8), and a vertical guide hole is provided on the pressing plate (9), and the upper end of the guide rod passes through the guide hole in the pressing plate (9).

7. The electric pipeline heating device according to claim 1, characterized in that: The heating sleeve (11) comprises a sleeve body (111) and a sealing plate (112). The sleeve body (111) is semi-cylindrical, and the cylindrical wall of the sleeve body (111) is corrugated in the axial direction. The sealing plate (112) is respectively provided at both ends of the sleeve body (111). The sealing plate (112) is semi-circular, and the inner diameter of the sealing plate (112) is equal to the outer diameter of the pipeline.

8. The electric pipeline heating device according to claim 7, characterized in that: The heating sleeve (11) further comprises a guide ring (113) and a support rod (114). The guide ring (113) is arranged at the middle portion of the outer side of the sleeve body (111). A plurality of guide rings (113) are evenly arranged along the axial direction of the sleeve body (111). The support rod (114) passes through each guide ring (113). Stoppers are provided at both ends of the support rod (114).

9. The electric pipeline heating device according to claim 7, characterized in that: The heating sleeve (11) further comprises a heating rod (115), which is semi-annular and perpendicular to the axis of the sleeve body (111). A plurality of heating rods (115) are evenly arranged on the inner side of the sleeve body (111).

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