Explosion-proof pipeline type heating device based on positive temperature material

Abstract

The invention discloses an anti-explosion pipeline type heating device based on a positive temperature material, and relates to the technical field of oil exploitation, the anti-explosion pipeline type heating device comprises an oil pipeline, an outer anti-explosion pipe and an anti-explosion electric appliance box, the outer anti-explosion pipe is fixed on the outer side of the oil pipeline, and the anti-explosion electric appliance box is installed on the outer anti-explosion pipe; connecting flanges are symmetrically fixed to the left end and the right end of the oil conveying pipeline, temperature sensors are further symmetrically installed at the left end and the right end of the oil conveying pipeline and arranged on the outer side of the outer anti-explosion pipe, a spiral rib is further fixed in the oil conveying pipeline, and a movable ring is connected to the oil conveying pipeline through a bearing. According to the anti-explosion pipeline type heating device based on the positive temperature material, crude oil in an oil conveying pipeline can be heated under the action of the PTC heating piece, so that normal flowing of the crude oil is guaranteed, the situation that the flowing speed of the crude oil is too low due to the influence of external environment factors is avoided, and through cooperation with the action of a spiral rib in the oil conveying pipeline, the heating efficiency is improved. Crude oil can be stirred when passing through the oil conveying pipeline.

Description

Technical Field

[0001] The invention relates to the technical field of oil exploitation, in particular to an explosion-proof pipeline heating device based on positive temperature materials. Background Art

[0002] During the oil extraction process, crude oil needs to be stored and transported. During the storage and transportation process, due to the influence of external environmental factors and the viscosity of crude oil, the crude oil has problems such as slow flow rate, high back pressure and low transportation efficiency in the transportation pipeline. In order to ensure that the crude oil can be transported normally under special conditions, it is necessary to add a heating device to heat the crude oil so that the crude oil can flow normally in the pipeline. In actual use, the existing heating device mainly realizes the heating effect of the pipeline by installing a heating plate on the outer wall of the pipeline. It is difficult to ensure the uniformity of crude oil heating in the pipeline. In addition, since the heating plate is fixedly installed, the temperature at the position in contact with the heating plate is higher, while the temperature at the position far away from the heating plate is lower, which greatly affects the heating effect of the crude oil. Therefore, in view of the above problems, an explosion-proof pipeline heating device based on positive temperature materials is designed to better meet the actual use needs. Summary of the invention

[0003] The object of the present invention is to provide an explosion-proof pipeline heating device based on positive temperature materials to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an explosion-proof pipeline heating device based on positive temperature materials, comprising an oil pipeline, an external explosion-proof pipe and an explosion-proof electrical box, an external explosion-proof pipe is fixed to the outside of the oil pipeline, an explosion-proof electrical box is installed on the external explosion-proof pipe, connecting flanges are symmetrically fixed at both ends of the oil pipeline, temperature sensors are also symmetrically installed at both ends of the oil pipeline, and the temperature sensors are arranged on the outside of the external explosion-proof pipe, spiral ribs are also fixed in the oil pipeline, a movable ring is connected to the bearing on the oil pipeline, and the movable rings are symmetrically distributed about the center line of the oil pipeline, balls are fixed at equal angles on the outside of the movable ring, and the balls can roll in contact with the inner wall of the external explosion-proof pipe, a PTC heating plate is also fixed on the movable ring, and an insulating cotton sleeve is fixed on the outside of the PTC heating plate.

[0005] Preferably, the PTC heating sheets are distributed at equal angles about the center of the movable ring, and the distance between the PTC heating sheets and the oil pipeline is 1mm-2mm. The PTC heating sheets can heat the crude oil in the oil pipeline, and by limiting the distance between the PTC heating sheets and the oil pipeline, friction between the PTC heating sheets and the oil pipeline can be avoided when the PTC heating sheets rotate.

[0006] Preferably, a driving mechanism is installed in the outer explosion-proof tube, and the driving mechanism is arranged outside the oil pipeline. A vibration mechanism is also fixed in the outer explosion-proof tube. Through the above structure, a basic guarantee can be provided for the normal operation of the device.

[0007] Preferably, the driving mechanism includes a motor, a disc, a cam shaft, a slide rod, a cross bar, a cam gear rod and a gear ring. The motor is fixed in an outer explosion-proof tube, and a disc is fixed at the output end of the motor, and a cam shaft is fixed at the lower end surface of the disc. At the same time, the cam shaft and the slide rod are slidably connected. The motor drives the disc and the cam shaft to rotate, and the sliding action between the cam shaft and the slide rod can provide basic guarantee for the reciprocating motion of the slide rod.

[0008] Preferably, the slide slot rod and the cross bar are slidably connected, and the cross bar is fixed in the outer explosion-proof tube. When the slide slot rod moves, the sliding guide effect between the slide slot rod and the cross bar can ensure that the slide slot rod performs stable linear motion.

[0009] Preferably, a convex tooth rod is also fixed on the slide groove rod, and the convex tooth rod is meshed with the tooth ring for transmission, and the tooth ring is fixed on the movable ring, and the distance between the convex tooth rod and the inner wall of the outer explosion-proof tube is greater than the rotation radius of the convex shaft. When the slide groove rod moves, the convex tooth rod is synchronously driven to move, and the meshing transmission effect between the convex tooth rod and the tooth ring can provide a basic force for the rotation of the movable ring.

[0010] Preferably, the vibration mechanism includes a fixed frame, a sliding rod, a knocking ball, a spring, a fixed rod and a connecting rod. The fixed frame is symmetrically fixed in the outer explosion-proof tube, and the sliding rod is slidably connected to the fixed frame, and a knocking ball is fixed to the end of the sliding rod close to the oil pipeline. At the same time, the knocking ball contacts the oil pipeline to achieve a knocking effect. Through the effect of the knocking ball, a basic guarantee can be provided for knocking on the oil pipeline. By knocking on the oil pipeline, the oil pipeline is vibrated, which facilitates the flow of crude oil in the oil pipeline.

[0011] Preferably, one end of a spring is fixed to the other end of the slide rod, and the other end of the spring is fixed in the outer explosion-proof tube, so that the elastic action of the spring can provide a basic force for the automatic resetting of the knocking ball.

[0012] Preferably, a fixing rod is vertically fixed on the sliding rod, and the distance between the fixing rod and the fixing frame is greater than the rotation radius of the cam shaft. By limiting the distance between the fixing rod and the fixing frame, it is possible to avoid collision between the fixing rod and the fixing frame to hinder the normal operation of the device.

[0013] Preferably, a connecting rod is also fixed on the fixed rod, and is symmetrically distributed left-right about the center line of the convex shaft, and the distance between the connecting rod and the slide rod is smaller than the rotation radius of the convex shaft. By limiting the distance between the connecting rod and the slide rod, it can be ensured that the slide rod can generate a force on the connecting rod when it moves, thereby providing a basic force for the movement of the knocking ball and ensuring the normal operation of the device.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This explosion-proof pipeline heating device based on positive temperature materials can heat the crude oil in the oil pipeline through the action of the PTC heating sheet, thereby ensuring the normal flow of the crude oil and avoiding the slow flow rate of the crude oil due to the influence of external environmental factors. In addition, with the action of the spiral ribs in the oil pipeline, the crude oil can be stirred when passing through the oil pipeline, thereby ensuring the uniform heating of the crude oil; 2. The explosion-proof pipeline heating device based on positive temperature materials, during the operation of the device, through the action of the motor, disc, convex shaft and slide rod, makes the convex gear rod perform orderly reciprocating motion, and cooperates with the transmission action between the convex gear rod and the gear ring, so that the movable ring can be forced to perform orderly forward and reverse rotation, thereby driving the PTC heating plate to perform orderly forward and reverse rotation. Then the PTC heating plate can adjust the heating position of the oil pipeline, so as to achieve uniform heating of the oil pipeline and avoid local overheating; 3. This explosion-proof pipeline heating device based on positive temperature materials, when the slide rod moves, cooperates with the connecting rod, the fixed rod and the spring to make the knocking ball move left and right in an orderly manner. The knocking ball knocks on the oil pipeline, which can generate micro-vibrations in the oil pipeline during the crude oil transportation process, thereby making the crude oil flow more smoothly in the oil pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the device of the present invention; Figure 2 It is a schematic diagram of a partial cross-section of the three-dimensional structure of the oil pipeline and the explosion-proof pipe of the present invention; Figure 3 This is a schematic diagram of a three-dimensional structure of an oil pipeline and a movable ring of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the oil pipeline and the PTC heating plate of the present invention; Figure 5 It is a schematic diagram of the front view of the three-dimensional structure of the driving mechanism and the vibration mechanism of the present invention; Figure 6 It is a bottom-up three-dimensional structural schematic diagram of the driving mechanism and the vibration mechanism of the present invention; Figure 7 It is a bottom-up stereoscopic structural schematic diagram of the vibration mechanism of the present invention.

[0016] In the figure: 1. oil pipeline; 101. connecting flange; 102. temperature sensor; 103. spiral rib; 2. external explosion-proof pipe; 3. explosion-proof electrical box; 4. movable ring; 401. ball; 402. PTC heating plate; 403. thermal insulation cotton sleeve; 5. driving mechanism; 501. motor; 502. disc; 503. cam shaft; 504. slide rod; 505. cross bar; 506. cam gear rod; 507. gear ring; 6. vibration mechanism; 601. fixed frame; 602. slide rod; 603. knock ball; 604. spring; 605. fixed rod; 606. connecting rod. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-Figure 7 The present invention provides a technical solution: an explosion-proof pipeline heating device based on positive temperature materials, comprising an oil pipeline 1, an outer explosion-proof pipe 2 and an explosion-proof electrical box 3, the outer explosion-proof pipe 2 is fixed to the outside of the oil pipeline 1, the explosion-proof electrical box 3 is installed on the outer explosion-proof pipe 2, connecting flanges 101 are symmetrically fixed at both ends of the oil pipeline 1, temperature sensors 102 are also symmetrically installed at both ends of the oil pipeline 1, and the temperature sensors 102 are arranged on the outside of the outer explosion-proof pipe 2, spiral ribs 103 are also fixed in the oil pipeline 1, a bearing on the oil pipeline 1 is connected to a movable ring 4, and the movable ring 4 is symmetrically distributed about the center line of the oil pipeline 1, balls 401 are fixed at equal angles on the outside of the movable ring 4, and the balls 401 can roll in contact with the inner wall of the outer explosion-proof pipe 2, a PTC heating plate 402 is also fixed on the movable ring 4, and a heat insulation cotton sleeve 403 is fixed on the outside of the PTC heating plate 402.

[0019] When using the explosion-proof pipeline heating device based on positive temperature materials, such as Figure 1-Figure 7As shown, the installation of the entire device can be achieved through the connection flange 101. In actual use, the heating effect of the oil pipeline 1 can be achieved by starting the PTC heating sheet 402, so that the crude oil flowing in the oil pipeline 1 can be heated, which is convenient for the transportation of the crude oil. With the heat preservation effect of the heat insulation cotton sleeve 403, the heat can be prevented from diffusing outwards to ensure the heating effect. When the crude oil flows in the oil pipeline 1, the spiral rib 103 can be used to stir the crude oil in the oil pipeline 1, so as to achieve a comprehensive and uniform heating effect on the crude oil. The temperature sensor 102 can detect the crude oil temperature in real time to avoid excessive temperature affecting the safety of the device. The PTC heating sheet 402 is distributed at equal angles with respect to the center of the movable ring 4, and the distance between the PTC heating sheet 402 and the oil pipeline 1 is 1mm-2mm; a driving mechanism 5 is installed in the outer explosion-proof pipe 2, and the driving mechanism 5 is arranged on the outside of the oil pipeline 1, and a vibration mechanism 6 is also fixed in the outer explosion-proof pipe 2; the driving mechanism 5 includes a motor 501, a disc 502, a convex shaft 503, a slide rod 504, a cross bar 505, a convex gear rod 506 and a gear ring 507, the motor 501 is fixed in the outer explosion-proof pipe 2, and the output of the motor 501 A disc 502 is fixed at the outlet end, and a convex shaft 503 is fixed on the lower end surface of the disc 502, and the convex shaft 503 is slidably connected to the slide rod 504; the slide rod 504 is slidably connected to the cross bar 505, and the cross bar 505 is fixed in the outer explosion-proof tube 2; a convex tooth rod 506 is also fixed on the slide rod 504, and the convex tooth rod 506 is meshed with the gear ring 507 for transmission, and the gear ring 507 is fixed on the movable ring 4, and the distance between the convex tooth rod 506 and the inner wall of the outer explosion-proof tube 2 is greater than the rotation radius of the convex shaft 503; During use of the device, if Figure 1-Figure 7As shown, the motor 501 is started synchronously, and the motor 501 can drive the disc 502 and the convex shaft 503 to rotate. The sliding action between the convex shaft 503 and the slide slot rod 504 makes the slide slot rod 504 perform orderly left and right reciprocating motion. The sliding guide action between the slide slot rod 504 and the cross bar 505 can ensure the stability of the movement of the slide slot rod 504. When the slide slot rod 504 moves, the convex tooth rod 506 can be synchronously driven to perform orderly reciprocating motion. The meshing transmission action between the convex tooth rod 506 and the gear ring 507 makes the gear ring 507 and the movable ring 4 perform orderly forward and reverse rotation. The rolling action between the ball 401 and the inner wall of the outer explosion-proof tube 2 can ensure the rotation of the movable ring 4 The stability of the device is improved. When the movable ring 4 rotates, the PTC heating sheet 402 can be driven to rotate synchronously, so that the heating position of the PTC heating sheet 402 on the oil pipeline 1 can be adjusted. Less PTC heating sheets 402 can be used to heat the oil pipeline 1, thereby saving costs. The rotation of the PTC heating sheet 402 can also avoid local overheating of the oil pipeline 1, thereby ensuring the safety of the device. By limiting the distance between the PTC heating sheet 402 and the oil pipeline 1, the friction between the PTC heating sheet 402 and the oil pipeline 1 can be avoided during rotation, and the heating effect of the PTC heating sheet 402 on the oil pipeline 1 can be ensured, thereby ensuring the normal operation of the device. The vibration mechanism 6 includes a fixed frame 601, a sliding rod 602, a knocking ball 603, a spring 604, a fixed rod 605 and a connecting rod 606. The fixed frame 601 is fixed in the outer explosion-proof tube 2 symmetrically, and the sliding rod 602 is slidably connected to the fixed frame 601, and a knocking ball 603 is fixed to one end of the sliding rod 602 close to the oil pipeline 1, and the knocking ball 603 is in contact with the oil pipeline 1 to achieve a knocking effect; the other end of the sliding rod 602 is fixed to one end of the spring 604, and the other end of the spring 604 is fixed in the outer explosion-proof tube 2; a fixed rod 605 is also vertically fixed to the sliding rod 602, and the distance between the fixed rod 605 and the fixed frame 601 is greater than the rotation radius of the convex shaft 503; a connecting rod 606 is also fixed to the fixed rod 605, and is symmetrically distributed about the center line of the convex shaft 503, and the distance between the connecting rod 606 and the slide groove rod 504 is less than the rotation radius of the convex shaft 503; During use of the device, if Figure 1-Figure 7As shown, when the slide rod 504 performs orderly left-right reciprocating motion, when the slide rod 504 contacts the connecting rod 606, the slide rod 504 continues to move so that the connecting rod 606 is forced to move synchronously, thereby driving the fixed rod 605 and the knocking ball 603 to move, and the sliding guide effect between the slide rod 602 and the fixed frame 601 can ensure the stability of the movement of the knocking ball 603. At this time, the knocking ball 603 is away from the oil pipeline 1, and the spring 604 is forced to shrink. When the slide rod 504 is separated from the connecting rod 606, at this time, under the elastic effect of the spring 604, the knocking ball 603 automatically resets and contacts the oil pipeline 1 to knock. The knocking of the oil pipeline 1 by the knocking ball 603 can cause a micro-vibration in the oil pipeline 1, so that the crude oil in the oil pipeline 1 can flow more smoothly. In summary, the device can achieve heating effect at different positions of the oil pipeline 1 by adopting a movable heating mechanism, thereby effectively avoiding local overheating in the oil pipeline 1, and with the action of the spiral rib 103, the crude oil flowing in the oil pipeline 1 can be stirred to ensure uniform heating of the crude oil, thereby ensuring the heating effect of the crude oil, and with the linkage vibration mechanism 6, the knocking effect of the oil pipeline 1 can be achieved during the use of the device, thereby making the crude oil flow in the oil pipeline 1 smoother through the micro-vibration of the oil pipeline 1. This is the working principle of the explosion-proof pipeline heating device based on positive temperature materials.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof pipeline heating device based on a positive temperature material, comprising an oil pipeline (1), an external explosion-proof pipe (2) and an explosion-proof electrical box (3), wherein the external explosion-proof pipe (2) is fixed to the outside of the oil pipeline (1), and the explosion-proof electrical box (3) is installed on the external explosion-proof pipe (2). Features: The oil pipeline (1) is symmetrically fixed with connecting flanges (101) at both ends, and the oil pipeline (1) is also symmetrically installed with temperature sensors (102) at both ends, and the temperature sensors (102) are arranged outside the outer explosion-proof pipe (2). The oil pipeline (1) is also fixed with spiral ribs (103). The oil pipeline (1) is connected with a movable ring (4) on the bearing, and the movable ring (4) is symmetrically distributed with respect to the center line of the oil pipeline (1). Balls (401) are fixed at equal angles on the outside of the movable ring (4), and the balls (401) are in contact with the inner wall of the outer explosion-proof pipe (2) and can roll. A PTC heating plate (402) is also fixed on the movable ring (4), and a heat insulation cotton sleeve (403) is fixed on the outside of the PTC heating plate (402).

2. An explosion-proof pipeline heating device based on positive temperature materials according to claim 1, Features: The PTC heating plates (402) are distributed at equal angles with respect to the center of the movable ring (4), and the distance between the PTC heating plates (402) and the oil pipeline (1) is 1 mm-2 mm.

3. An explosion-proof pipeline heating device based on positive temperature materials according to claim 1, Features: A driving mechanism (5) is installed in the outer explosion-proof tube (2), and the driving mechanism (5) is arranged outside the oil pipeline (1). A vibration mechanism (6) is also fixed in the outer explosion-proof tube (2).

4. An explosion-proof pipeline heating device based on positive temperature materials according to claim 3, Features: The driving mechanism (5) comprises a motor (501), a disc (502), a convex shaft (503), a slide groove rod (504), a cross bar (505), a convex tooth rod (506) and a gear ring (507); the motor (501) is fixed in the outer explosion-proof tube (2); the disc (502) is fixed to the output end of the motor (501); the convex shaft (503) is fixed to the lower end surface of the disc (502); and the convex shaft (503) and the slide groove rod (504) are slidably connected.

5. An explosion-proof pipeline heating device based on positive temperature materials according to claim 4, Features: The slide groove rod (504) and the cross bar (505) are slidably connected, and the cross bar (505) is fixed inside the outer explosion-proof tube (2).

6. An explosion-proof pipeline heating device based on positive temperature materials according to claim 4, Features: A convex tooth rod (506) is also fixed on the slide groove rod (504), and the convex tooth rod (506) is meshed with a toothed ring (507) for transmission, and the toothed ring (507) is fixed on the movable ring (4), and the distance between the convex tooth rod (506) and the inner wall of the outer explosion-proof tube (2) is greater than the rotation radius of the convex shaft (503).

7. An explosion-proof pipeline heating device based on positive temperature materials according to claim 4, Features: The vibration mechanism (6) comprises a fixed frame (601), a sliding rod (602), a knocking ball (603), a spring (604), a fixed rod (605) and a connecting rod (606); the fixed frame (601) is fixed in a bilaterally symmetrical manner in the outer explosion-proof pipe (2); the sliding rod (602) is slidably connected to the fixed frame (601); and a knocking ball (603) is fixed to one end of the sliding rod (602) close to the oil pipeline (1); and the knocking ball (603) is in contact with the oil pipeline (1) to achieve a knocking effect.

8. An explosion-proof pipeline heating device based on positive temperature materials according to claim 7, Features: One end of a spring (604) is fixed to the other end of the sliding rod (602), and the other end of the spring (604) is fixed inside the outer explosion-proof tube (2).

9. The explosion-proof pipeline heating device based on positive temperature materials according to claim 7, Features: A fixing rod (605) is also vertically fixed on the sliding rod (602), and the distance between the fixing rod (605) and the fixing frame (601) is greater than the rotation radius of the convex shaft (503).

10. The explosion-proof pipeline heating device based on positive temperature materials according to claim 7, Features: A connecting rod (606) is also fixed on the fixed rod (605) and is symmetrically distributed about the center line of the convex shaft (503), and the distance between the connecting rod (606) and the sliding groove rod (504) is smaller than the rotation radius of the convex shaft (503).

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