Pressure pipeline inspection instrument

Abstract

The utility model relates to the technical field of pipeline inspection, and particularly discloses a pressure pipeline inspection instrument, which comprises two groups of fixing frames, the two groups of fixing frames are connected end to end to form a closed ring, a pressure pipeline is positioned between the two groups of fixing frames, and one sides of the two groups of fixing frames are provided with scraper components for scraping impurities on the pressure pipeline; an ultrasonic detector used for detecting the pressure pipeline is arranged on the other sides of the two sets of fixing frames. The technical problem that the efficiency of detecting the pressure pipeline is reduced due to the fact that cleaning of impurities on the pipeline by workers is inconvenient and time is consumed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline inspection, and specifically discloses a pressure pipeline inspection instrument. Background Art

[0002] In the transportation of chemical products and natural gas, pressure pipelines are used for transportation. Natural gas and chemical products are both dangerous goods, so pressure pipelines need to be inspected regularly to check whether there are corrosion or crack problems in the pressure pipelines, so as to prevent leakage and accidents caused by defects in pressure pipelines, avoid damage to life and property and pollution to the environment.

[0003] When inspecting open-air pressure pipelines, since the pressure pipelines are exposed outdoors, they are easily affected by natural factors such as wind, rain, and dust, causing impurities such as mud, dust, etc. to adhere to the outer wall of the pressure pipeline. At the same time, there may be bird droppings on the pressure pipeline. Therefore, when cleaning the pressure pipeline, it is necessary to remove the impurities on the outer wall of the pipeline before testing it to avoid the pressure pipeline inspection results being interfered by impurities. Since the pipeline is curved, it is inconvenient for the staff to clean the impurities on the pipeline, and it takes a lot of time to clean the pipeline, which increases the time for inspecting the pressure pipeline, thereby reducing the efficiency of inspecting the pressure pipeline. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a pressure pipeline inspection instrument to solve the technical problem that it is inconvenient for workers to clean impurities on the pipeline, which consumes a lot of time and reduces the efficiency of pressure pipeline inspection.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure pipeline inspection instrument, including two groups of fixed frames, the two groups of fixed frames are connected end to end to form a closed ring, the pressure pipeline is located between the two groups of fixed frames, and one side of the two groups of fixed frames is provided with a scraper assembly for scraping impurities on the pressure pipeline; the other side of the two groups of fixed frames is provided with an ultrasonic detector for detecting the pressure pipeline. The scraper mechanism can scrape impurities on the pressure pipeline while the staff moves the inspection instrument, avoiding the situation where the ultrasonic detector inspection structure causes inaccurate results due to impurities on the pressure pipeline, and at the same time can save the staff time to remove impurities on the pressure pipeline before inspecting the pressure pipeline, thereby improving the efficiency of inspecting the pressure pipeline; the ultrasonic detector is used to inspect the pressure pipeline.

[0006] Further, the scraper mechanism includes several groups of scrapers, one end of the scraper is provided with a fixed block, the fixed block is clamped on the fixed frame, several groups of the scrapers are connected end to end, several groups of the scrapers form a hollow truncated cone, and the other end of the scraper is tightly connected to the pressure pipe; two groups of second matching blocks are fixedly connected to the fixed frame by bolts, and two groups of the second matching blocks are provided with several groups of second connecting rods and third matching blocks, the fixed block is located between the fixed frame and the second matching block, and the third matching block is in contact with one end of the scraper. The scraper mechanism scrapes off impurities on the pressure pipe through several groups of scrapers, and several groups of scrapers can form a closed shape. At the same time, one end of the scraper is arc-shaped, which can fit tightly with the outer wall of the pressure pipe, and can ensure that all impurities around the pressure pipe are scraped off. The third matching block can strengthen the strength of the scraper, so that the pressure pipe is cleaned more cleanly, and can help the staff to quickly remove impurities on the pressure pipe, thereby improving the efficiency of inspecting the pressure pipe.

[0007] Furthermore, the fixing frame includes two groups of first matching blocks and several groups of first connecting rods, and the two ends of the first connecting rods are fixedly connected to the two groups of the first matching blocks respectively; the first matching block is provided with a second clamping block on one side and a second clamping slot on the other side, and the second clamping block is clamped in the second clamping slot on the adjacent first matching block, and the two groups of the first matching blocks are fixedly connected by bolts. The second matching block is used to fix the scraper on the fixing frame, and at the same time improve the strength of the scraper to ensure the cleaning quality of the scraper.

[0008] Furthermore, the ultrasonic detector includes several groups of ultrasonic sensors, processors and displays, the processor is connected to the display, the processor is connected to several groups of ultrasonic sensors through several groups of connecting wires, and the ultrasonic sensors are in contact with the outer wall of the pressure pipe; a support block is provided on the fixing frame, the processor and the display are fixedly connected to the support block, and several groups of the connecting wires are fixedly connected to the fixing frame through several groups of harness blocks. The ultrasonic detector can detect the pressure pipe, and the staff can intuitively see the data of the pressure pipe through the display screen, and judge whether there is corrosion or crack problem inside the pressure pipe.

[0009] Furthermore, the ultrasonic sensor is fixedly connected to the fixing sleeve, the fixing sleeve is provided with a threaded rod and a hand wheel, the threaded rod is installed on the first matching block; the threaded rod is hollow, and the connecting wire is installed inside the threaded rod. The staff can adjust the distance between the ultrasonic sensor and the pressure pipe by rotating the hand wheel, ensuring that the ultrasonic sensor can be in contact with the outer wall of the pressure pipe when inspecting pressure pipes of different sizes, thereby improving the applicability of the inspection instrument.

[0010] Furthermore, a connecting shaft is installed on each of the several groups of the first connecting rods, a connecting platform is provided at one end of the connecting shaft, a roller is fixedly connected to the connecting platform, the roller is connected to the pressure pipe, a spring is mounted on the connecting shaft, and both ends of the spring are in contact with the fixing frame and the connecting platform respectively. The inspection instrument can be moved on the pressure pipe by the roller, which is convenient for the staff to push the inspection instrument. At the same time, the spring cooperates with the connecting shaft to ensure that when inspecting pressure pipes of different sizes, the roller can contact the outer wall of the pressure pipe, thereby improving the applicability of the inspection instrument.

[0011] The working principle and beneficial effects of this solution are:

[0012] When inspecting a pressure pipeline, first install the inspection instrument on the pressure pipeline, then start the ultrasonic detector, the ultrasonic sensor emits ultrasonic waves, the ultrasonic waves are reflected in the pressure pipeline until they are received by the ultrasonic sensor, and the ultrasonic sensor transmits the time of ultrasonic emission and reception to the processor. The processor automatically calculates according to the data transmitted back by the ultrasonic sensor, and takes into account the different propagation speeds of ultrasonic waves in different media, and outputs the calculation results to the display screen. The staff can see the data of the pressure pipeline on the display screen, and thus determine whether there are corrosion or crack problems in the pressure pipeline.

[0013] After completing the inspection of one section of the pressure pipeline, the staff pushes the inspection instrument, and the inspection instrument moves along the length direction of the pressure pipeline, driving the roller to roll on the outer wall of the pressure pipeline, and at the same time, one end of the scraper moves on the outer wall of the pressure pipeline to scrape off the impurities on the outer wall of the pressure pipeline. After the inspection instrument moves a certain distance, the pushing of the inspection instrument is stopped, and the ultrasonic detector is started again to inspect the pressure pipeline. This reciprocating process is repeated to inspect the entire section of the pressure pipeline. While the inspection instrument moves on the pressure pipeline, the scraper mechanism will scrape off the impurities on the pressure pipeline, thereby ensuring the accuracy of the inspection results. The staff does not need to spend time cleaning the impurities, thereby improving the efficiency of the pressure pipeline inspection.

[0014] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment;

[0016] Figure 2 An exploded view of an embodiment;

[0017] Figure 3 is a schematic structural diagram of a fixing frame in an embodiment;

[0018] Figure 4 A side view of an embodiment.

[0019] The markings in the accompanying drawings are as follows: fixed frame 1, first matching block 2, first connecting rod 3, second matching block 4, fixed block 5, fixed groove 6, scraper 7, first clamping block 8, first clamping groove 9, screw 10, nut 11, second connecting rod 12, third matching block 13, second clamping block 14, second clamping groove 15, ultrasonic sensor 16, fixed sleeve 17, threaded rod 18, hand wheel 19, connecting line 20, display 21, wiring block 22, support block 23, connecting shaft 24, spring 25, roller 26, third clamping block 27, third clamping groove 28, connecting platform 29. DETAILED DESCRIPTION

[0020] The following is further described in detail through specific implementation methods:

[0021] Example

[0022] like Figures 1 to 4 As shown, a pressure pipeline inspection instrument is disclosed, including two groups of fixing frames 1, the fixing frames 1 include two groups of first matching blocks 2 and a plurality of groups of first connecting rods 3, both ends of the first connecting rods 3 are respectively fixedly connected to the two groups of first matching blocks 2, one end of the first matching block 2 is provided with a second clamping block 14, the other end of the first matching block 2 is provided with a second clamping groove 15, the second clamping block 14 is clamped in the corresponding second clamping groove 15 on the adjacent fixing frames 1, the two groups of fixing frames 1 are connected at the first end to form a closed ring, the two groups of fixing frames 1 are fixedly connected by bolts, and the pressure pipeline is installed between the two groups of fixing frames 1.

[0023] A scraper mechanism for scraping impurities from a pressure pipe is provided on one side of the fixed frame 1. The pressure pipe is inserted into the scraper mechanism, and the outer wall of the pressure pipe is in contact with the scraper mechanism. The scraper mechanism includes a plurality of scraper plates 7. The shape of the scraper plates 7 is the same as the surface of a truncated cone. A third clamping block 27 is provided on one side of the scraper plates 7, and a third clamping groove 28 is provided on the other side. The third clamping block 27 is clamped in the third clamping groove 28 on the adjacent scraper plates 7. The plurality of scraper plates 7 are connected end to end to form a hollow truncated cone, and one end of the plurality of scraper plates 7 is in close contact with the outer wall of the pressure pipe. A fixed block 5 is provided on the other end of the scraper plates 7. The fixed frame 1 is provided with a plurality of fixed grooves 6. The plurality of fixed blocks 5 are clamped in the corresponding plurality of fixed grooves 6. Two groups of second matching blocks 4 are connected by bolts, and a plurality of screw rods 10 are arranged on the fixing frame 1. The plurality of screw rods 10 are respectively installed in the two groups of second matching blocks 4. Nuts 11 are mounted on the screw rods 10. A first clamping block 8 is arranged at one end of the second matching block 4, and a first clamping groove 9 is opened at the other end. The two groups of second matching blocks 4 are connected end to end to form a closed ring. The first clamping block 8 on the second matching block 4 is clamped in the first clamping groove 9 of the adjacent second matching block 4. The fixing block 5 is located between the fixing frame 1 and the second matching block 4. A second connecting rod 12 and a third matching block 13 are arranged on the second matching block 4. The third matching block 13 contacts with the other end of the scraper 7. The third matching block 13 can improve the rigidity of the other end of the scraper 7. Figure 1 and 2 shown.

[0024] Several groups of connecting shafts 24 are installed on several groups of first connecting rods 3, and several groups of connecting shafts 24 are evenly distributed around the pressure pipe in a ring shape. One end of the connecting shaft 24 is fixedly connected to a connecting platform 29, and a roller 26 is fixedly connected to the connecting platform 29 by bolts. The roller 26 contacts the surface of the pressure pipe. The first connecting rod 3 is installed with a spring 25, and the two ends of the spring 25 are respectively in contact with the first connecting rod 3 and the connecting platform 29. Figure 3 and Figure 4 shown.

[0025] An ultrasonic detector is arranged on the other side of the fixing frame 1, and the ultrasonic detector includes several groups of ultrasonic sensors 16, a processor and a display 21. A support block 23 is fixedly connected to the fixing frame 1, and a processor and a display 21 are fixedly connected to the support block 23. The processor is located below the display 21, and several groups of connecting wires 20 are connected to the processor. The other ends of several groups of connecting wires 20 are connected to the ultrasonic sensors 16. The ultrasonic sensors 16 are evenly distributed around the pressure pipe in a ring shape and contact the outer wall of the pressure pipe. Several groups of harness blocks 22 are arranged on the fixing frame 1, and the connecting wires 20 are installed in the harness blocks 22. The ultrasonic sensor 16 is fixedly connected to the fixing sleeve 17. A threaded rod 18 is arranged on the fixing sleeve 17. The threaded rod 18 is hollow, and the connecting wire 20 is installed in the threaded rod 18. The threaded rod 18 is installed on the first matching block 2. The first matching block 2 is threadedly connected to the threaded rod 18, and a hand wheel 19 is arranged on the threaded rod 18. Figure 3 and Figure 4 shown.

[0026] Among them, ultrasonic detector is a technical means commonly used by technical personnel in the field, and its structure, connection method and use method are all technologies well known to technical personnel in the field.

[0027] When implementing

[0028] When installing the inspection instrument, first clean the pressure pipe of the installation section, then move the two sets of fixing frames 1 to both sides of the pressure pipe, and then clamp the second clamping block 14 on one set of fixing frames 1 into the second clamping groove 15 on the adjacent fixing frame 1. At this time, the pressure pipe is located in the circular frame formed by the two sets of fixing frames 1, and then fix the two sets of fixing frames 1 by bolts. At this time, it is necessary to ensure that the display 21 is located above the pressure pipe, so that the staff can observe the display 21 conveniently; while installing the fixing frame 1, the roller 26 first contacts the pressure pipe, and as the fixing frame 1 moves, the position of the roller 26 remains unchanged, and the connecting shaft 24 slides on the first connecting rod 3 to compress the spring 25;

[0029] Then, by rotating the hand wheel 19, the threaded rod 18 is driven to rotate, and the threaded rod 18 is threadedly connected to the first connecting rod 3, so that the rotational motion of the threaded rod 18 can be converted into the movement of the ultrasonic sensor 16 along the length direction of the threaded rod 18 until the ultrasonic sensor 16 contacts the pressure pipe;

[0030] Then install the scraper mechanism. First, distribute several groups of scrapers 7 around the pressure pipe. The third clamping block 27 is clamped in the third clamping groove 28 of the adjacent scraper 7, so that the several groups of scrapers 7 are connected in the first position to form a truncated cone. At this time, the several groups of scrapers 7 surround the pressure pipe. Then rotate the several groups of scrapers 7 to align the several groups of fixing blocks 5 with the several groups of fixing grooves 6 respectively, clamp the fixing blocks 5 in the fixing grooves 6, and then move the two groups of second matching blocks 4 to both sides of the pressure pipe. Clamp the first clamping block 8 on one group of the second matching blocks 4 into the first clamping groove 9 on the adjacent second fixing block 5. The two groups of second matching blocks 4 form a closed ring. At this time, the pressure pipeline is located between the two groups of matching blocks. Then rotate the two groups of second matching blocks 4 to ensure that the second matching blocks 4 can be mounted on the screw 10. Move the two groups of matching blocks horizontally to allow the screw 10 to be installed on the second matching blocks 4. Then rotate the nut 11 on the screw 10. Through the cooperation of the nut 11 and the screw 10, the two groups of second matching blocks 4 are fixed to the two groups of fixed frames 1. At the same time, the second matching blocks 4 fix the fixed blocks 5 to the fixed frames 1. The two groups of third matching blocks 13 fix one end of several groups of scrapers 7. At this time, one section of several groups of scrapers 7 is close to the wall of the pressure pipeline. At the same time, it is necessary to ensure that the scraper mechanism is located at the front end of the inspection instrument.

[0031] When in use, the ultrasonic detector is started, and the ultrasonic sensor 16 emits ultrasonic waves. The ultrasonic waves propagate in the pressure pipeline. When the ultrasonic waves propagate in different media, reflection, transmission, refraction and waveform conversion phenomena will occur. The ultrasonic sensor 16 receives the ultrasonic waves reflected back from the pressure pipeline and transmits them to the processor. The processor automatically calculates according to the data transmitted back by the ultrasonic sensor 16 and outputs the results to the display screen. The staff can observe the display screen to intuitively see the data of the pressure pipeline inspection, thereby judging whether the pressure pipeline is qualified. After a section of the pressure pipeline is inspected, the staff pushes the inspection instrument, and the roller 26 moves on the outer wall of the pressure pipeline, thereby driving the inspection instrument to move. At the same time, one end of the scraper 7 moves on the pressure pipeline close to the pipe wall to scrape off the impurities on the pressure pipeline to prevent the impurities on the pipeline from affecting the inspection of the pressure pipeline, thereby causing inaccurate inspection results. After the inspection instrument moves a certain distance, the staff stops pushing the inspection instrument, starts the ultrasonic detector, and inspects the pressure pipeline until the pressure pipeline is fully inspected. When the inspection instrument moves on the pipeline, the impurities on the pipeline will be removed by the scraper mechanism, and the staff does not need to manually clean the impurities, thereby saving the time of cleaning impurities and improving the efficiency of detection.

[0032] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the utility model.

Claims

1. A pressure pipeline inspection instrument, characterized in that: It comprises two groups of fixing frames and a scraper mechanism, the two groups of fixing frames are connected end to end to form a closed ring, the pressure pipeline is located between the two groups of fixing frames, and one side of the two groups of fixing frames is provided with a scraper assembly for scraping impurities on the pressure pipeline; An ultrasonic detector for detecting the pressure pipeline is arranged on the other side of the two groups of fixing frames.

2. A pressure pipeline inspection instrument according to claim 1, characterized in that: The scraper mechanism comprises a plurality of scraper plates, one end of each scraper plate is provided with a fixed block, the fixed block is clamped on the fixed frame, the plurality of scraper plates are connected end to end, the plurality of scraper plates form a hollow truncated cone, and the other end of each scraper plate is tightly connected to a pressure pipe; The fixing frame is fixedly connected with two groups of second matching blocks by bolts, and the two groups of the second matching blocks are each provided with a plurality of groups of second connecting rods and third matching blocks. The fixing block is located between the fixing frame and the second matching block, and the third matching block is in contact with one end of the scraper.

3. A pressure pipeline inspection instrument according to claim 2, characterized in that: The fixing frame comprises two groups of first matching blocks and a plurality of groups of first connecting rods, and two ends of the first connecting rods are respectively fixedly connected to the two groups of the first matching blocks; A second clamping block is provided on one side of the first matching block, and a second clamping slot is provided on the other side. The second clamping block is clamped in the second clamping slot on the adjacent first matching block, and the two groups of the first matching blocks are fixedly connected by bolts.

4. A pressure pipeline inspection instrument according to claim 3, characterized in that: The ultrasonic detector comprises several groups of ultrasonic sensors, a processor and a display, wherein the processor is connected to the display, the processor is connected to several groups of ultrasonic sensors via several groups of connecting wires, and the ultrasonic sensors are in contact with the outer wall of the pressure pipe; The fixing frame is provided with a support block, the processor and the display are fixedly connected to the support block, and a plurality of groups of connecting wires are fixedly connected to the fixing frame through a plurality of groups of wire harness blocks.

5. A pressure pipeline inspection instrument according to claim 4, characterized in that: The ultrasonic sensor is fixedly connected to the fixing sleeve, the fixing sleeve is provided with a threaded rod and a hand wheel, and the threaded rod is installed on the first matching block; The threaded rod is hollow, and the connecting wire is inserted into the threaded rod.

6. A pressure pipeline inspection instrument according to claim 5, characterized in that: A connecting shaft is installed on several groups of the first connecting rods, a connecting platform is provided at one end of the connecting shaft, a roller is fixedly connected to the connecting platform, the roller is connected to the pressure pipe, a spring is mounted on the connecting shaft, and both ends of the spring are respectively in contact with the fixed frame and the connecting platform.

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