Bendable device for inspecting surface wound of coil pipe in heating furnace

Abstract

The utility model relates to the technical field of oil and gas gathering and transportation engineering, in particular to a bendable device for inspecting surface wounds of a coil pipe in a heating furnace, which comprises a main body, the main body extends into the heating furnace and is wirelessly connected with a remote controller, and the remote controller controls the main body to inspect the internal environment of the heating furnace. The main body can inspect the internal environment of the heating furnace by 360 degrees through rotation; the main body comprises a display, the display is connected with a telescopic pipe, the outer side of the telescopic pipe is connected with a sleeve, the telescopic pipe is connected with a bent pipe through a hinge, one end of the sleeve is provided with a fixing clamping groove, an endoscope probe is installed in the top end of the bent pipe, an LED lamp is installed on the outer side of the bent pipe, and the display is electrically connected with the endoscope probe and the LED lamp. According to the device provided by the utility model, the bending pipe can be bent, the LED light source is bright, the definition of images shot by the endoscope probe is high, the whole main body supports 360-degree arbitrary rotation, the overall environment in the heating furnace can be clearly checked, and the safety performance is high.

Description

Technical Field

[0001] This utility model relates to the technical field of oil and gas gathering and transportation engineering, and in particular to a bendable device for inspecting surface damage on the internal coils of a heating furnace. Background Technology

[0002] During the use of oilfield heating furnaces, the internal coils are subject to dual corrosion from flame combustion and the transported medium, which can easily cause bulging, deformation, pitting, peeling, and other phenomena. If not detected in time, these phenomena can lead to perforation, medium leakage, environmental pollution, and even fires and other safety accidents. In order to eliminate safety hazards and take preventive measures in advance, the coils should be photographed and inspected regularly every month.

[0003] In practical applications, employees need to climb to the explosion-proof door at the rear of the heating furnace. One person lifts the explosion-proof door while another crawls into the explosion-proof opening to take pictures with photographic equipment. Due to the narrow space around the explosion-proof opening, it is difficult to exert force. The explosion-proof cover weighs up to 40 kilograms and can only be lifted for a short time, making it impossible to conduct a detailed inspection. The hook-type design is prone to slippage and falling injuries. Moreover, the standing position is high and difficult to climb, posing a great danger, especially in winter, when operators are prone to slipping and falling from a height.

[0004] Furthermore, in actual production, removing the burner from the heating furnace exposes the coil at the circular hole. Employees use photographic equipment to take pictures, but frequent disassembly of the burner easily damages connecting parts. During installation, if the gears of the adjusting damper are not properly aligned, the damper may not open, posing a safety hazard of backfire and explosion. Disassembling and assembling the burner is time-consuming and labor-intensive, requiring one hour per session and two people working together, resulting in low efficiency and high labor intensity for employees. It should be noted that the interior of the furnace is dimly lit, the coil is approximately 4 meters long, and the distance between the end of the coil and the hole is far, leading to poor photographic quality and low inspection quality. In practical applications, an endoscope probe is attached to the end of a fishing rod and inserted into the furnace through the burner's observation hole. However, due to the soft probe cable, it cannot be held upright to shine light, and the light source intensity is insufficient. Rotation is also not possible, making it impossible to clearly see the condition of the surrounding coil. Therefore, to address these shortcomings, a bendable device for inspecting surface damage on the coils inside the heating furnace is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a bendable device for inspecting surface damage on the internal coils of a heating furnace, in order to overcome the defects in the existing technology, such as safety hazards, easily damaged parts, and unclear image data, which make it impossible to clearly identify the damaged surface.

[0006] To achieve the above objectives, this utility model provides a bendable device for inspecting surface damage on internal coils of a heating furnace, comprising:

[0007] The main body is wirelessly connected to a remote control, which controls the main body to inspect the internal environment of the heating furnace. The main body can inspect the internal environment of the heating furnace 360° by rotating.

[0008] The main body includes a display, the display is connected to a telescopic tube, the outside of the telescopic tube is connected to a sleeve, the telescopic tube and the sleeve are fixed together by a locking nut, the other end of the telescopic tube is connected to a hinge, the telescopic tube is connected to a bending tube through the hinge, one end of the sleeve is provided with a fixing groove, an endoscope probe is installed inside the top end of the bending tube, an LED light is installed on the outside of the bending tube, and the display is electrically connected to the endoscope probe and the LED light;

[0009] The sleeve extends into the heating furnace, and the sleeve drives the telescopic tube to extend into the heating furnace. The telescopic tube moves inside the sleeve by pushing and pulling. The telescopic tube drives the bending tube, endoscope probe and LED light to extend into the heating furnace through a hinge. The bending tube is bent by the hinge. The fixing slot limits the bending angle of the bending tube. The LED light illuminates the internal environment of the heating furnace. The endoscope probe monitors the internal environment of the heating furnace in real time.

[0010] Preferably, the tail end of the display is connected to a wire, the display and the wire are integrated, and the other end of the wire is wrapped around the outside of the telescopic tube.

[0011] Preferably, the display is electrically connected to the endoscope probe via a wire, and the display is also electrically connected to an LED light via a wire.

[0012] Preferably, the outer diameter of the telescopic tube is smaller than the inner diameter of the sleeve, and the length of the telescopic tube is greater than the length of the sleeve.

[0013] Preferably, the heating furnace has a furnace chamber inside, and multiple coils are installed inside the furnace chamber, with the length of the telescopic tube not less than the distance between the coils.

[0014] Preferably, one end of the telescopic tube is provided with a screw hole, and one end of the sleeve is provided with a round hole. The diameter of the screw hole and the diameter of the round hole are adapted to each other, and the locking nut is inserted into the screw hole and the round hole.

[0015] Preferably, the bending angle of the bending tube is 45°, 90°, or 120°, the length of the bending tube is not less than 500mm, the outer diameter of the bending tube is smaller than the inner diameter of the sleeve, and the bending tube returns to the horizontal position by pulling the telescopic tube, and the bending tube is retracted into the inside of the sleeve.

[0016] Preferably, the telescopic tube rotates to drive the sleeve and the bending tube to rotate, and the bending tube drives the LED light and the endoscope probe to rotate. The rotation angle of the telescopic tube is 360°.

[0017] Preferably, the display, telescopic tube, bending tube, endoscope probe, and LED light are all wirelessly connected to a remote control.

[0018] This utility model has the following beneficial effects:

[0019] This utility model provides a bendable device for inspecting surface damage on the internal coils of a heating furnace. It allows inspection without climbing the furnace or lifting the explosion-proof door, preventing personnel injury; it also eliminates the need to disassemble the burner, avoiding frequent disassembly and damage to components; the bendable tube allows for close-up observation of the damaged surface; the bright LED light source provides a clear view of the furnace's interior; the endoscope probe captures high-resolution images; and the main body supports 360° rotation, enabling comprehensive monitoring of the furnace's internal environment without blind spots. Designed based on mechanical principles, it is easy to operate, robust, durable, has a long service life, and high safety performance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a bendable device for inspecting surface damage of the internal coils of a heating furnace, according to an embodiment of this utility model.

[0021] Figure 2 This is a partial schematic diagram of the bent tube, hinge, and fixing slot of this utility model embodiment;

[0022] Figure 3 This is a partial schematic diagram of the locking nut fixing sleeve and telescopic tube according to an embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of the main body of this utility model entering the heating furnace for inspection.

[0024] Legend:

[0025] A-Main body; B-Heating furnace; 1-Endoscope probe; 2-LED light; 3-Bent tube; 4-Hinge; 5-Fixing slot; 6-Sleeve; 7-Locking nut; 8-Telescopic tube; 9-Display. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1 to 4 As shown, this utility model provides a bendable device for inspecting surface damage on internal coils of a heating furnace, comprising:

[0028] Main body A is wirelessly connected to a remote control, which controls main body A to inspect the internal environment of heating furnace B. Main body A can inspect the internal environment of heating furnace B 360° by rotating.

[0029] The main body A includes a display 9, which is connected to a telescopic tube 8. A sleeve 6 is connected to the outside of the telescopic tube 8. The telescopic tube 8 and the sleeve 6 are fixed together by a locking nut 7. The other end of the telescopic tube 8 is connected to a hinge 4. The telescopic tube 8 is connected to a bent tube 3 through the hinge 4. One end of the sleeve 6 is provided with a fixing groove 5. An endoscope probe 1 is installed inside the top end of the bent tube 3. An LED light 2 is installed on the outside of the bent tube 3. The display 9 is electrically connected to the endoscope probe 1 and the LED light 2.

[0030] The sleeve 6 extends into the heating furnace B, and the sleeve 6 drives the telescopic tube 8 to extend into the heating furnace B. The telescopic tube 8 moves inside the sleeve 6 by pushing and pulling. The telescopic tube 8 drives the bent tube 3, the endoscope probe 1, and the LED light 2 to extend into the heating furnace B through the hinge 4. The bent tube 3 is bent by the hinge 4. The fixing slot 5 limits the bending angle of the bent tube 3. The LED light 2 illuminates the internal environment of the heating furnace B. The endoscope probe 1 monitors the internal environment of the heating furnace B in real time.

[0031] In this device, the tail end of the display 9 is connected to a wire, and the display 9 and the wire are integrated. The other end of the wire is wrapped around the outside of the telescopic tube 8. In addition, the display 9 is electrically connected to the endoscope probe 1 via a wire, and the display 9 is also electrically connected to the LED light 2 via a wire.

[0032] In practical applications, the outer diameter of the telescopic pipe 8 is smaller than the inner diameter of the sleeve 6, and the length of the telescopic pipe 8 is greater than the length of the sleeve 6. Meanwhile, the heating furnace B has a furnace chamber inside, and multiple coils are installed inside the furnace chamber; the length of the telescopic pipe 8 is not less than the distance between the coils.

[0033] In this device, one end of the telescopic tube 8 has a screw hole, and one end of the sleeve 6 has a round hole. The diameter of the screw hole and the diameter of the round hole are compatible. The locking nut 7 is inserted into the screw hole and the round hole. In practical applications, the bending angle of the bending tube 3 is 45°, 90°, or 120°, the length of the bending tube 3 is not less than 500mm, and the outer diameter of the bending tube 3 is smaller than the inner diameter of the sleeve 6. By pulling the telescopic tube 8, the bending tube 3 returns to a horizontal position and retracts into the sleeve 6. In addition, the telescopic tube 8 rotates, causing the sleeve 6 and the bending tube 3 to rotate. The bending tube 3 drives the LED light 2 and the endoscope probe 1 to rotate. The rotation angle of the telescopic tube 8 is 360°.

[0034] It should be noted that the monitor 9, telescopic tube 8, bending tube 3, endoscope probe 1, and LED light 2 are all wirelessly connected to the remote control.

[0035] This invention provides a bendable device for inspecting surface damage on internal coils of a heating furnace, effectively solving the problem of unclear surface damage on the heating furnace coils. The working principle of this bendable device for inspecting surface damage on internal coils of a heating furnace is described in detail below:

[0036] In this embodiment, the tail end of the display 9 is connected to a wire, and the display 9 and the wire are integrated. The other end of the wire is wrapped around the outside of the telescopic tube 8. The outside of the telescopic tube 8 is connected to the sleeve 6. The telescopic tube 8 and the sleeve 6 are fixed by a locking nut 7. The other end of the telescopic tube 8 is connected to a hinge 4. The telescopic tube 8 is connected to the bent tube 3 through the hinge 4. One end of the sleeve 6 is provided with a fixing groove 5. The endoscope probe 1 is installed inside the top end of the bent tube 3. An LED light 2 is installed on the outside of the bent tube 3. The display 9 is electrically connected to the endoscope probe 1 and the LED light 2 through a wire.

[0037] It should be noted that the monitor 9, telescopic tube 8, bending tube 3, endoscope probe 1, and LED light 2 are all wirelessly connected to the remote control.

[0038] In practical applications, this embodiment supports both mechanical and remote control modes. For mechanical mode, close the gas supply valve, wait for the furnace temperature of furnace B to drop below 30°C, open the burner observation port baffle of furnace B, insert this embodiment into the furnace, open the locking nut 7, push the telescopic tube 8 forward by more than 500mm, until the bent tube 3 protrudes from the sleeve 6, and rotate the hinge 4 to connect the bent tube 3 downwards at a 90° angle. Rotate the sleeve 6, using the fixing slot 5 to lock the hinge 4 at a fixed angle. Then tighten the locking nut 7 to simultaneously fix the sleeve 6 and the telescopic tube 8, and open... Using monitor 9 and LED light 2, slowly rotate sleeve 6 to inspect the corrosion status of each coil inside heating furnace B step by step and section by section. Monitor 9 has a magnifying lens, photo and video recording functions for easy archiving. After inspection, open locking nut 7, rotate sleeve 6, hinge 4 disengages from fixing slot 5, pull telescopic tube 8 backward, and bending tube 3 will retract into sleeve 6. Tighten locking nut 7 to fix sleeve 6 and telescopic tube 8 in place, preventing back-and-forth sliding. Remove from observation hole to complete the operation. For remote control mode, the inspection method is the same as mechanical mode. The difference is that telescopic, bending, and rotation in remote control mode are driven by brushless geared motors. The operator only needs to press the operation command on the remote control device to observe the image of each part of the heating furnace coil, making operation more convenient.

[0039] It should be noted that the distance between the endoscope probe 1 and the tube being inspected is within 300mm, the LED light 2 provides sufficient light, and the image transmitted to the monitor 9 has extremely high recognition, which can achieve the final ideal goal.

[0040] Furthermore, in this embodiment, after the endoscope probe 2 enters the furnace chamber of the heating furnace B, the bending tube 3 is bent at 45°, 90°, and 120°, with a bending height of not less than 500mm, allowing for close-up viewing of the coils. A strong light source is provided by an LED light 3, which consists of 9 LED beads, making the interior of the heating furnace B bright and the surrounding objects clearly visible. The entire main body A supports 360° rotation, allowing for clear viewing of the corrosion status of the surface of each coil inside the heating furnace B through any rotation direction. It is made of metal and carbon fiber explosion-proof materials, ensuring stable safety.

[0041] This utility model provides a bendable device for inspecting surface damage on the internal coils of a heating furnace. It allows inspection without climbing the furnace or lifting the explosion-proof door, preventing personnel injury; it also eliminates the need to disassemble the burner, avoiding frequent disassembly and damage to components; the bendable tube allows for close-up observation of the damaged surface; the bright LED light source provides a clear view of the furnace's interior; the endoscope probe captures high-resolution images; and the main body supports 360° rotation, enabling comprehensive monitoring of the furnace's internal environment without blind spots. Designed based on mechanical principles, it is easy to operate, robust, durable, has a long service life, and high safety performance.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bendable device for inspecting the surface of a coil in a heating furnace for defects, characterized in that, The utility model relates to a kind of heating furnace inspection device, including: Main body (A), the main body (A) stretches into heating furnace (B), the main body (A) is wirelessly connected remote controller, the remote controller controls main body (A) to check the internal environment of heating furnace (B), the main body (A) can be 360 by rotating Check the internal environment of heating furnace (B); The main body (A) includes display (9), the display (9) is connected telescopic pipe (8), the outer side of telescopic pipe (8) is connected sleeve (6), between telescopic pipe (8) and the sleeve (6) is fixed by locking nut (7), the other end of telescopic pipe (8) is connected hinge (4), telescopic pipe (8) is connected bending pipe (3) by hinge (4), one end of sleeve (6) is equipped with fixed clamping groove (5), the inside of the top of bending pipe (3) is installed endoscope probe (1), the outside of bending pipe (3) is installed LED lamp (2), the display (9) is electrically connected endoscope probe (1) and LED lamp (2); The sleeve (6) stretches into heating furnace (B), the sleeve (6) drives telescopic pipe (8) to stretch into heating furnace (B), telescopic pipe (8) moves in the inside of sleeve (6) by push and pull, telescopic pipe (8) drives bending pipe (3), endoscope probe (1) and LED lamp (2) to stretch into heating furnace (B) by hinge (4), bending pipe (3) is bent by hinge (4), the fixed clamping groove (5) limits the bending angle of bending pipe (3), the internal environment of heating furnace (B) is illuminated by LED lamp (2), the internal environment of heating furnace (B) is monitored in real time by endoscope probe (1).

2. The apparatus for inspecting the surface of the coil of a bending type heating furnace for a defect according to claim 1, wherein The tail end of display (9) is connected with electric wire, the display (9) and the electric wire are integrally connected, and the other end of the electric wire is wound on the outside of telescopic pipe (8).

3. The apparatus for inspecting the surface of the coil of a bending type heating furnace for a defect according to claim 2, wherein The display (9) is electrically connected with the endoscope probe (1) through the electric wire, and the display (9) is electrically connected with the LED lamp (2) through the electric wire.

4. The apparatus for inspecting the surface of the coil of a bending furnace according to claim 1, wherein The outer diameter of the telescopic pipe (8) is smaller than the inner diameter of the sleeve (6), and the length of the telescopic pipe (8) is greater than the length of the sleeve (6).

5. The apparatus for inspecting the surface of the coil of a bending furnace according to claim 1, wherein The inside of the heating furnace (B) is provided with a hearth, a plurality of coils are installed in the inside of the hearth, and the length of the telescopic pipe (8) is not less than the distance of the coils.

6. The apparatus for inspecting the surface of the coil of a bending furnace according to claim 1, wherein One end of the telescopic pipe (8) is provided with a threaded hole, one end of the sleeve (6) is provided with a circular hole, the diameter of the threaded hole is adapted to the diameter of the circular hole, and the locking nut (7) is inserted into the threaded hole and the circular hole.

7. The apparatus for inspecting the surface of the coil of a bending furnace according to claim 1, wherein The bending angle of the bending pipe (3) is 45°, 90° or 120°, the length of the bending pipe (3) is not less than 500 mm, the outer diameter of the bending pipe (3) is smaller than the inner diameter of the sleeve (6), by pulling the telescopic pipe (8), the bending pipe (3) is returned to the horizontal direction, and the bending pipe (3) is recovered into the inside of the sleeve (6).

8. The apparatus for inspecting the surface of the coil of a bending furnace according to claim 1, wherein The telescopic pipe (8) drives the sleeve (6) and the bending pipe (3) to rotate by rotating, the bending pipe (3) drives the LED lamp (2) and the endoscope probe (1) to rotate, and the rotation angle of the telescopic pipe (8) is 360°.

9. The apparatus for inspecting the surface of the coil of a bending furnace according to claim 1, wherein The display (9), telescopic tube (8), bending tube (3), endoscope probe (1) and LED lamp (2) are all wirelessly connected to a remote controller.

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