Ultrasonic nondestructive testing device for pressure pipeline

Abstract

The utility model relates to the technical field of detection devices, in particular to an ultrasonic nondestructive detection device for a pressure pipeline, which comprises a fixing ring and a fixing frame, a fixing frame is welded to the upper end of the fixing ring, and a containing groove is formed in the fixing frame. After the driving motor is connected with the drill bit to detect a pressure pipeline drill hole, the filling head wrapped with the filling rubber piece is plugged into the drill hole for filling, the filling rubber piece can assist the filling head to be tightly attached to the inner wall of the drill hole, the hole is effectively filled, fluid medium leakage is prevented, corrosion damage to the pipeline is reduced, and the service life of the pipeline is prolonged. The sealing performance of the pipeline is effectively recovered after drilling detection; the filling film can be well bonded with the inner wall of the pipeline after being cured, so that the structural strength of a drilling part is enhanced, the weakening of the overall strength of the pipeline caused by drilling is reduced, the nondestructive testing work of the pressure pipeline is realized, and the safety of the pipeline in subsequent use is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection device technical field especially relates to pressure pipeline ultrasonic nondestructive testing device. BACKGROUND

[0002] Pressure pipeline refers to the pressure for conveying gas or liquid pipe equipment, its range is stipulated as the highest working pressure greater than or equal to 0.1MPa (gauge pressure), medium is gas, liquefied gas, steam or combustible, explosive, toxic, corrosive, the highest working temperature is higher than or equal to standard boiling point liquid, and the safe operation of pressure pipeline is crucial to industrial production and people's life, therefore, from design, installation to use and maintenance, each link needs to strictly abide by relevant laws, regulations and standard norms, when maintaining pressure pipeline, need to use ultrasonic detection device to emit high-frequency sound wave, and utilize reflection signal to detect the change of pipeline internal structure, detection device receives reflected wave, and analyzes its waveform, amplitude and propagation time, to judge the position, size and nature of defect.

[0003] Meanwhile, the existing detection device usually destructively detects the pipeline locally, which can easily damage the structure of the pipeline, weaken the structural strength of the pipeline, increase the risk of leakage or rupture under working pressure, and reduce the safety of pipeline use. SUMMARY

[0004] In order to overcome the problem of the existing detection device, which can easily damage the structure of the pipeline, weaken the structural strength of the pipeline, increase the risk of leakage or rupture under working pressure, and reduce the safety of pipeline use, the utility model provides a pressure pipeline ultrasonic nondestructive testing device.

[0005] The technical scheme is as follows: the pressure pipeline ultrasonic nondestructive testing device comprises a fixed ring and a fixed frame; the upper end of the fixed ring is welded with the fixed frame, and the inside of the fixed frame is provided with a placing groove; further comprising a driving motor, a detection head, a storage box, a filling block and a pressing plate; a positioning groove is formed in the upper end center of the fixed ring, and the inside of the positioning groove is installed with the driving motor; one end of the driving motor is installed with a micro drill below the fixed ring, the micro drill is fixedly connected with the output end of the driving motor; the upper end of the fixed ring is fixed with the storage box on one side of the fixed frame; the inside of the storage box is placed with a plurality of filling blocks, and the outer wall of the filling blocks is wrapped with a filling film.

[0006] Further, the inside of the fixed frame is placed with an ultrasonic module, one end of the ultrasonic module is provided with a connecting cable, the connecting cable extends to the outside through the fixed frame, and the end of the connecting cable away from the ultrasonic module is fixed with the detection head.

[0007] Further, the upper end of the storage box is provided with a sealing plate, and a screw is arranged at the upper end corner of the sealing plate.

[0008] Further, the inside of the placing groove is provided with a partition plate, and the inner wall of the storage box is provided with a sliding groove for accommodating the partition plate.

[0009] Further, the outer wall of the fixed frame is provided with a connector, the connector is electrically connected with the ultrasonic module, and the outer wall of the fixed ring is provided with a control module on one side of the fixed frame.

[0010] Further, the inner wall of the positioning groove is provided with a plurality of intercepting rods, and the plurality of intercepting rods are welded with the fixed ring.

[0011] Further, the inner wall of the fixed ring is circumferentially provided with a plurality of groups of gaskets, and the plurality of groups of gaskets are fixedly connected with the inner wall of the fixed ring.

[0012] Further, the lower end of the fixed ring is welded with two groups of connecting plates, the inside of the two groups of connecting plates is symmetrically provided with threaded rods, the threaded rods extend to the inside through the connecting plates, and one end of the threaded rods is welded with a pressing plate.

[0013] Beneficial effects are: the utility model realizes that after the drilling detection of the pressure pipeline is detected by using the driving motor connected with the drill bit, the filling head wrapped with the filling film is inserted into the drill hole for filling, the filling film can assist the filling head to closely adhere to the inner wall of the drill hole, effectively fill the hole, prevent fluid medium leakage, reduce the corrosion damage to the pipeline, and effectively ensure the sealing performance of the pipeline after the drilling detection;

[0014] After the filling film is solidified, it can form good adhesion with the inner wall of the pipeline, enhance the structural strength of the drilling position, reduce the weakening of the overall strength of the pipeline caused by drilling, realize the nondestructive testing work of the pressure pipeline, and ensure the safety of the pipeline in subsequent use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the utility model's pressure pipeline ultrasonic nondestructive testing device;

[0016] Figure 2 It is a three-dimensional structure schematic view of the utility model's micro drill bit;

[0017] Figure 3 It is a three-dimensional structure schematic view of the utility model's filling block;

[0018] Figure 4 It is a three-dimensional structure schematic view of the utility model's pressing plate;

[0019] Figure 5 It is a three-dimensional structure schematic view of the utility model's partition plate.

[0020] In the drawing marks: 1, fixed ring; 2, drive motor; 3, micro drill; 4, fixed frame; 5, ultrasonic module; 6, connecting cable; 7, detection head; 8, storage box; 9, sealing plate; 10, partition; 11, filling block; 12, control module; 13, pad; 14, adapter plate; 15, threaded rod; 16, pressing plate. DETAILED DESCRIPTION

[0021] The utility model will be specifically introduced below in combination with the drawings and specific examples.

[0022] Pressure pipeline is a tubular equipment used for conveying gas or liquid, with internal medium flowing under certain pressure. Pressure pipeline has various classification methods, and common classification standards include use, pressure grade, medium type, etc. According to use: long-distance pipeline (GA type): pipeline used for transporting commodities between production sites and storage depots. Public pipeline (GB type): gas pipeline and heat pipeline used for public utilities or civilian use within cities or towns. Industrial pipeline (GC type): process pipeline used for conveying industrial medium within factories. Power pipeline (GD type): pipeline used for conveying steam and water medium in thermal power plants. According to medium type: gas pipeline: conveying gas medium such as natural gas, oxygen, etc. Liquid pipeline: conveying liquid medium such as oil, water, etc. Liquefied gas pipeline: conveying liquefied gas such as liquefied petroleum gas. Steam pipeline: conveying steam.

[0023] Pressure pipeline is widely used in multiple industries such as chemical industry, petroleum, natural gas, power, and municipal administration. In the chemical industry, it is used for conveying various chemical media; in the petroleum and natural gas industry, it is used for conveying petroleum and natural gas; in the municipal field, it is used for conveying gas, heat, etc. Due to the flammable, explosive, toxic, corrosive characteristics of the medium conveyed by the pressure pipeline, and the complex working conditions, it is listed as special equipment and is subject to strict safety supervision.

[0024] For the detection of pressure pipelines, the main purpose is to discover the defects and hidden dangers of the pipelines in time, to evaluate their safety, to prevent accidents, and to protect the safety of personnel and equipment. Pressure pipeline detection mainly includes the following types: periodic inspection: periodic comprehensive inspection of pipelines, including macroscopic inspection, wall thickness measurement, safety accessory inspection, etc. Supervision inspection: supervision and compliance verification of the safety performance of pressure pipelines during their manufacture, installation, modification and major repair. Online detection: detection under the operating state of the pipeline, mainly used for monitoring the real-time state of the pipeline and discovering potential problems in time. The process of detection is as follows: formulating a detection scheme: according to the specific situation of the pipeline, formulate a detailed detection plan. Preparation before detection: including data review, equipment preparation, site cleaning, etc. Implement detection: carry out various detection work according to the detection scheme. Defect treatment: evaluate and handle the defects found in the detection. Results summary and report: summarize the detection results and issue a detection report. Pressure pipeline detection is an important means to ensure the safe operation of pipelines. Through regular detection, defects in the pipeline can be discovered and handled in time, the service life of the pipeline can be extended, and the risk of accidents can be reduced. It is necessary to strictly follow relevant standards and specifications to ensure the accuracy and reliability of the detection results.

[0025] Ultrasonic testing is a technique that uses the propagation characteristics of ultrasonic waves in materials to study the internal structure, defects, and other properties of workpieces by detecting reflected, transmitted, and scattered waves. It is then used to evaluate the specific application of these properties. Ultrasonic waves are mechanical waves with frequencies higher than 20 kHz, characterized by good directionality, high energy, and strong penetration ability. When it propagates in a medium, it will reflect, refract, diffract, and scatter at the interface of different media. When ultrasonic waves propagate in a material, they will reflect at the interface between the defect and the material if they encounter a defect (such as a crack, hole, or inclusion). By receiving the reflected signal and analyzing its time delay, amplitude, and frequency, etc., the position, size, and shape of the defect can be determined. The main methods of ultrasonic testing include: Pulse echo method: This is the most commonly used method. By transmitting short pulse ultrasonic waves and receiving reflected signals, the internal defects and structures of the material can be determined by analyzing the time delay and amplitude changes of the reflected signals. Penetration method: Place the transmitting and receiving probes on both sides of the material, and measure the signal changes after the ultrasonic waves penetrate the material to determine the thickness and uniformity of the material. Resonance method: Use the resonance phenomenon of ultrasonic waves in the material to determine the internal defects and structures of the material by measuring the changes in resonance frequency and amplitude. Diffraction time difference method: Measure the diffraction time and propagation speed of ultrasonic waves in the material to determine the internal defects and structures of the material. Ultrasonic testing technology has been widely applied in various fields, such as industrial production, medical diagnosis, geological exploration, and liquid level and distance measurement. It provides important technical support for industrial production and medical diagnosis, etc.

[0026] As Figures 1-5The utility model discloses a pressure pipeline ultrasonic nondestructive testing device, including fixed ring 1 and fixed frame 4, the upper end of fixed ring 1 is welded with fixed frame 4, and the inside of fixed frame 4 is provided with a placing groove, further including drive motor 2, detection head 7, storage box 8, filling block 11 and pressing plate 16, the upper end center of fixed ring 1 is provided with a positioning groove, the inside of positioning groove is installed with drive motor 2, and the one end of drive motor 2 is located below fixed ring 1 and is installed with micro drill bit 3, micro drill bit 3 is fixedly connected with the output end of drive motor 2, the upper end of fixed ring 1 is fixed with storage box 8 at one side of fixed frame 4, a plurality of sets of filling block 11 are placed in the inside of storage box 8, the outer wall of a plurality of sets of filling block 11 is all wrapped with filling film, the inside of fixed frame 4 is placed with ultrasonic module 5, one end of ultrasonic module 5 is equipped with connecting cable 6, connecting cable 6 extends to the outside through fixed frame 4, and detection head 7 is fixed to the one end of connecting cable 6 away from ultrasonic module 5.

[0027] Please refer to Figures 2-4 , the upper end of storage box 8 is installed with sealing plate 9, the upper end corner of sealing plate 9 is equipped with screw, sealing plate 9 is sealed with the buckling of storage box 8, the inside of placing groove is installed with baffle 10, and the inner wall of storage box 8 is provided with containing baffle 10 sliding slot, the upper end of baffle 10 is fixed with connecting plate symmetrically, the inside of connecting plate is all provided with through slot, the outer wall of fixed frame 4 is installed with connector, and the connector is electrically connected with ultrasonic module 5, and the outer wall of fixed ring 1 is installed with control module 12 at one side of fixed frame 4.

[0028] Please refer to Figures 3-5 , the inner wall of positioning groove is installed with multiple sets of intercepting rods, and the multiple sets of intercepting rods are fixedly connected with fixed ring 1, the inner wall of fixed ring 1 is fixedly connected with a plurality of sets of pad 13, the inner wall of fixed ring 1 is fixedly connected with a plurality of sets of pad 13, the lower end of fixed ring 1 is welded with two sets of link plates 14, and the inside of two sets of link plates 14 is symmetrically installed with threaded rod 15, threaded rod 15 extends to the inside through link plate 14, and the one end of threaded rod 15 is welded with pressing plate 16.

[0029] When detecting the pipeline, the fixing ring 1 that can be adapted to the outer wall of the pressure pipeline is selected first, the driving motor 2 is installed into the selected positioning groove, the micro drill 3 is installed and fixed with the output end of the driving motor 2, after the micro drill 3 is installed, the fixing ring 1 is attached to the outer wall of the pressure pipeline, the threaded rod 15 is rotated by using the tool, the threaded rod 15 connects the pressing plate 16 to push the pressing plate 16 to attach to the pressure pipeline, the gasket 13 is used to assist the fixing ring 1 to attach to the limit, so that the shaking during subsequent drilling detection is avoided, when the fixing ring 1 is installed, the driving motor 2 is started to connect the micro drill 3 to drill the pressure pipeline, after the pressure pipeline is drilled, the detection head 7 is connected by using the connecting cable 6 to extend to the inside of the pipeline through the drilling, the ultrasonic module 5 is started to detect by using the detection head 7, the information after detection is transmitted to the control module 12 by using the ultrasonic module 5 to collect and compare, the ultrasonic detection of the pressure pipeline is realized, after the ultrasonic detection of the pressure pipeline, the filling block 11 wrapped with the filling film is inserted into the drilling to fill, the filling film can assist the filling block 11 to closely attach to the inner wall of the drilling, the hole is effectively filled, the fluid medium leakage is prevented, the corrosion damage to the pipeline is reduced, and after the filling film is solidified, the good adhesion with the inner wall of the pipeline is formed, the weakening of the overall strength of the pipeline caused by the drilling is reduced, the nondestructive testing work of the pressure pipeline is realized, the pipeline strength is maintained, and the stable use of the pipeline is ensured.

[0030] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. Apparatus for ultrasonic non-destructive testing of a pressure pipe, characterised in that, The fixed ring (1) and the fixed frame (4) are included. The upper end of the fixed ring (1) is welded with the fixed frame (4), and the inside of the fixed frame (4) is provided with a placing groove; further comprising a driving motor (2), a detection head (7), a storage box (8), a filling block (11) and a pressing plate (16); the upper end of the fixed ring (1) is provided with a positioning groove, and the inside of the positioning groove is installed with the driving motor (2), one end of the driving motor (2) is located below the fixed ring (1) and is installed with a micro drill bit (3), the micro drill bit (3) is fixedly connected with the output end of the driving motor (2), the upper end of the fixed ring (1) is fixed with the storage box (8) on one side of the fixed frame (4), and a plurality of filling blocks (11) are placed in the storage box (8), and the outer wall of the plurality of filling blocks (11) is wrapped with a filling film.

2. The apparatus for ultrasonic non-destructive testing of pressure pipes according to claim 1, characterized in that, The inside of the fixed frame (4) is placed with an ultrasonic module (5), one end of the ultrasonic module (5) is provided with a connecting cable (6), the connecting cable (6) extends to the outside through the fixed frame (4), and the detection head (7) is fixed to one end of the connecting cable (6) away from the ultrasonic module (5).

3. The apparatus for ultrasonic non-destructive testing of pressure pipes according to claim 2, characterized in that, The upper end of the storage box (8) is installed with a sealing plate (9), the upper end of the sealing plate (9) is provided with a screw at the corner, and the sealing plate (9) is sealed with the storage box (8).

4. The apparatus for ultrasonic non-destructive testing of pressure pipes according to claim 3, characterized in that, The inside of the placing groove is installed with a partition plate (10), and the inner wall of the storage box (8) is provided with a sliding groove for accommodating the partition plate (10), and the upper end of the partition plate (10) is fixed with a connecting plate symmetrically, and the inside of the connecting plate is provided with a through groove.

5. The apparatus for ultrasonic non-destructive testing of pressure pipes according to claim 1, characterized in that, The outer wall of the fixed frame (4) is installed with a connector, the connector is electrically connected with the ultrasonic module (5), and the outer wall of the fixed ring (1) is installed with a control module (12) on one side of the fixed frame (4).

6. The apparatus for ultrasonic non-destructive testing of pressure pipes according to claim 5, characterized in that, The inner wall of the positioning groove is installed with a plurality of intercepting rods, and the plurality of intercepting rods are welded with the fixed ring (1).

7. The apparatus of claim 6, wherein, The inner wall of the fixed ring (1) is fixed with a plurality of groups of gaskets (13) in a ring shape, and the inner wall of the fixed ring (1) is fixedly connected with the plurality of groups of gaskets (13).

8. The apparatus for ultrasonic non-destructive testing of pressure pipes according to claim 7, characterized in that, The lower end of the fixed ring (1) is welded with two groups of connecting plates (14), and the inside of the two groups of connecting plates (14) is symmetrically installed with a threaded rod (15), the threaded rod (15) extends to the inside through the connecting plate (14), and one end of the threaded rod (15) is welded with a pressing plate (16).

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