Frame type pipeline circumferential weld DR detection system

Abstract

The utility model relates to the field of pipeline welding seam detection, in particular to a frame type pipeline circumferential welding seam DR detection system which comprises a DR detector, a guide rail, a pipeline and a protection device, the guide rail is arranged on the surface of the pipeline in a sleeved mode, the DR detector is installed on the surface of the guide rail, and the protection device is arranged on the surface of the DR detector and comprises a first protection ring. The surface of the guide rail is sleeved with the first protection ring, the surface of the guide rail is connected with the second protection ring in a sleeving mode, the first protection ring and the second protection ring are the same in size, the surfaces of the first protection ring and the second protection ring are fixedly connected with a placement plate, and the placement plate is placed on the surface of the DR detector. According to the utility model, by arranging the protection device, the influence of sundries on the use of the detection system is effectively reduced, and when the detection system is used, the protection device is installed, so that the sundries are prevented from falling into the groove on the surface of the guide rail, the practicability of the detection system is improved, and the assistance of the protection device on the detection system is improved; and the detection precision of the detection system is improved.

Description

Technical Field

[0001] The utility model relates to the field of pipeline weld detection, in particular to a frame-type pipeline girth weld DR detection system. Background Technique

[0002] A pipeline is a device connected by pipes, pipe connectors, valves, etc. for transporting gases, liquids or fluids with solid particles. Usually, after the fluid is pressurized by a blower, compressor, pump, boiler, etc., it flows from the high-pressure part of the pipeline to the low-pressure part, or it can also be transported by the pressure or gravity of the fluid itself. The uses of pipelines are very extensive, mainly used in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering and various industrial installations. The pipeline digital radiography DR detection system is an advanced non-destructive testing technology, mainly used for accurately evaluating the internal structure and quality of pipelines. With the development of society, when the welds of pipelines need to be detected, a detection system is used.

[0003] Existing equipment such as CN220399310U, a frame-type pipeline girth weld DR detection system, includes a pipeline, an overall track, a drive box and a function box. The overall track is installed at a position on one side of the outer side wall of the pipeline. Two first grooves are provided at the middle position of the outer side wall of the overall track, and the two first grooves are spaced 8 cm apart. Second grooves are provided at the middle positions of the inner side walls of the two first grooves. A sliding groove is fixedly connected to the other side wall of the drive box. Two support columns are fixedly connected to the lower end surface of the drive box at a position on one side, and the two support columns are spaced 8 cm apart. The structure of this device is simple. By designing a buffer spring, when the pipeline vibrates, the buffer spring is used to weaken the influence on scanning, making the scanning more stable. By designing a convex block and a sliding groove, it is convenient for disassembly and assembly to improve efficiency. By designing a standard block, by increasing or decreasing the number of standard blocks, it can be made to be applicable to pipelines of any size.

[0004] When a worker needs to detect the weld of a pipeline, the worker installs the detection system on the pipeline so that the detection system can scan the weld of the pipeline. However, during the use of the detection system, it will be affected by sundries, resulting in the situation that the guide rail of the detection system will get stuck during movement, and further causing problems that the detection accuracy and operation stability of the detection system will be affected. Content of the Utility Model

[0005] The purpose of the utility model is to solve the defect that the detection accuracy and operation stability of the detection system in the prior art will be affected, and to propose a frame-type pipeline girth weld DR detection system.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A frame-type pipeline girth weld DR detection system, comprising a DR detector, a guide rail, a pipeline and a protection device. The guide rail is sleeved on the surface of the pipeline, the DR detector is installed on the surface of the guide rail, the protection device is arranged on the surface of the DR detector. The protection device includes a first protection ring which is sleeved on the surface of the guide rail. A second protection ring is sleeved and connected to the surface of the guide rail. The first protection ring and the second protection ring are of the same size. A placement plate is fixedly connected to the surfaces of the first protection ring and the second protection ring. The placement plate is placed on the surface of the DR detector. A resisting strip is fixedly connected to the surface of the DR detector. The placement plate is inserted into the surface of the resisting strip. A limiting mechanism is arranged on the surface of the placement plate. The limiting mechanism includes a receiving block which is fixedly connected to the surface of the placement plate. A supporting block is fixedly connected to the surface of the resisting strip. The receiving block is inserted into the surface of the supporting block. A positioning rod is threadedly connected to the surface of the supporting block. The positioning rod is inserted into the inner surface of the receiving block. The receiving block can cooperate with the supporting block and the positioning rod to achieve the purpose of restricting the first protection ring and the second protection ring.

[0007] Preferably, a resisting sleeve is fixedly connected to the surface of the placement plate. An inserting rod is fixedly connected to the surface of the placement plate. The inserting rod is inserted into the inner surface of the resisting sleeve. The resisting sleeve can cooperate with the placement plate and the inserting rod to achieve the purpose of restricting the first protection ring and the second protection ring.

[0008] Preferably, a positioning device is arranged on the surface of the guide rail. The positioning device includes a supporting plate. A plurality of the supporting plates are fixedly connected to the surface of the guide rail. The plurality of supporting plates are arranged in a ring around the pipeline. The supporting plate can cooperate with the guide rail to achieve the purpose of supporting the supporting plate.

[0009] Preferably, a balance rod is slidably connected to the inner surface of the supporting plate. A limiting plate is fixedly connected to the surface of the balance rod. The balance rod can cooperate with the limiting plate and the supporting plate to achieve the purpose of guiding the balance rod.

[0010] Preferably, an adjusting rod is rotatably connected to the surface of the limiting plate. The adjusting rod is threadedly connected to the surface of the supporting plate. The adjusting rod can cooperate with the limiting plate and the supporting plate to achieve the purpose of facilitating the operator to adjust the limiting plate.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are as follows:

[0012] In the present utility model, by providing a protection device, when the detection system is in use, the influence of sundries on the use of the detection system is reduced. A ray source in the DR detector generates a ray beam with a certain energy, and the ray passes through the pipeline to be detected. Since the substances inside the pipeline have different absorption and scattering degrees for the ray, the intensity of the ray changes after passing through the pipeline. The detector located on the other side of the pipeline receives the ray that has penetrated the pipeline and converts it into an electrical signal. The detector usually adopts a flat panel detector or a linear array detector. The electrical signal output by the detector undergoes analog-to-digital conversion to become a digital signal. These digital signals are transmitted to a computer system and processed and analyzed by specialized image processing software. The software will perform operations such as image enhancement, filtering, and noise reduction on the image to improve the quality and clarity of the image. The detection personnel identify the defects inside the pipeline, such as cracks, holes, corrosion, etc., by observing the processed image. The image processing software may also have some functions of automatic defect recognition to assist the detection personnel in making judgments. Place the first protection ring and the second protection ring at the designated positions. The insertion rods on the surfaces of the first protection ring and the second protection ring are inserted into the socket sleeves. Rotate the positioning rod, and the positioning rod is inserted into the storage block. By providing the protection device, the influence of sundries on the use of the detection system is effectively reduced. When the detection system is in use, the protection device is installed, preventing sundries from falling into the grooves on the surface of the guide rail, improving the practicability of the detection system, enhancing the assistance of the protection device to the detection system, and improving the detection accuracy of the detection system. Description of the Drawings

[0013] Figure 1 Fig. is a schematic three-dimensional structure diagram of a frame-type pipeline girth weld DR detection system proposed by the present utility model;

[0014] Figure 2 Fig. is a schematic structure diagram of the protection device of a frame-type pipeline girth weld DR detection system proposed by the present utility model;

[0015] Figure 3 Fig. is a frame-type pipeline girth weld DR detection system proposed by the present utility model Figure 2 Schematic diagram of the structure at A;

[0016] Figure 4 Fig. is a schematic structure diagram of the positioning device of a frame-type pipeline girth weld DR detection system proposed by the present utility model;

[0017] Figure 5 Fig. is a frame-type pipeline girth weld DR detection system proposed by the present utility model Figure 4 Schematic diagram of the structure at B.

[0018] Legend Explanation:

[0019] 1. DR detector; 2. Guide rail; 3. Protection device; 31. First protection ring; 32. Positioning rod; 33. Support block; 34. Storage block; 35. Placement plate; 36. Bushing; 37. Insertion rod; 38. Second protection ring; 4. Positioning device; 41. Adjusting rod; 42. Balance rod; 43. Support plate; 44. Limiting plate; 5. Pipeline. Detailed implementation mode

[0020] Please refer to Figures 1-5 , the present utility model provides a technical solution: a frame-type pipeline 5 girth weld DR detection system, including a DR detector 1, a guide rail 2, a pipeline 5 and a protection device 3. The guide rail 2 is sleeved on the surface of the pipeline 5, the DR detector 1 is installed on the surface of the guide rail 2, and the protection device 3 is arranged on the surface of the DR detector 1. The DR detector can be directly purchased on the market, and its specific structure will not be elaborated in this embodiment. It is matched with corresponding special image processing software.

[0021] Next, specifically describe the specific settings and functions of its protection device 3 and positioning device 4.

[0022] In this implementation scheme: the protection device 3 includes a first protection ring 31. The first protection ring 31 is sleeved on the surface of the guide rail 2. A second protection ring 38 is sleeved and connected to the surface of the guide rail 2. The first protection ring 31 and the second protection ring 38 are of the same size. A placement plate 35 is fixedly connected to the surfaces of the first protection ring 31 and the second protection ring 38. The placement plate 35 is placed on the surface of the DR detector 1. A resisting strip 39 is fixedly connected to the surface of the DR detector 1. The placement plate 35 is inserted into the surface of the resisting strip 39. A limiting mechanism is arranged on the surface of the placement plate 35.

[0023] Specifically, the limiting mechanism includes a storage block 34. The storage block 34 is fixedly connected to the surface of the placement plate 35. A support block 33 is fixedly connected to the surface of the resisting strip 39. The storage block 34 is inserted into the surface of the support block 33. A positioning rod 32 is threadedly connected to the surface of the support block 33. The positioning rod 32 is inserted into the inner surface of the storage block 34. The storage block 34 can cooperate with the support block 33 and the positioning rod 32 to achieve the purpose of restricting the first protection ring 31 and the second protection ring 38.

[0024] Specifically, a bushing 36 is fixedly connected to the surface of the placement plate 35. An insertion rod 37 is fixedly connected to the surface of the placement plate 35. The insertion rod 37 is inserted into the inner surface of the bushing 36.

[0025] In this embodiment: the bushing 36 can cooperate with the placement plate 35 and the insertion rod 37 to achieve the purpose of restricting the first protection ring 31 and the second protection ring 38.

[0026] In this embodiment: A positioning device 4 is provided on the surface of the guide rail 2. The positioning device 4 includes a support plate 43. A plurality of support plates 43 are fixedly connected to the surface of the guide rail 2. The plurality of support plates 43 are arranged in a ring around the pipeline 5. The support plate 43 can cooperate with the guide rail 2 to achieve the purpose of supporting the support plate 43.

[0027] Specifically, a balance rod 42 is slidably connected to the inner surface of the support plate 43, and a limiting plate 44 is fixedly connected to the surface of the balance rod 42.

[0028] In this embodiment: The balance rod 42 can cooperate with the limiting plate 44 and the support plate 43 to achieve the purpose of guiding the balance rod 42.

[0029] Specifically, an adjusting rod 41 is rotatably connected to the surface of the limiting plate 44, and the adjusting rod 41 is threadedly connected to the surface of the support plate 43.

[0030] In this embodiment: The adjusting rod 41 can cooperate with the limiting plate 44 and the support plate 43 to achieve the purpose of facilitating the worker to adjust the limiting plate 44.

[0031] Working principle: By setting up the protection device 3, when the detection system is in use, the influence of sundries on the use of the detection system is reduced. The ray source (X-ray machine or radioactive isotope source) in the DR detector 1 is used to generate a ray beam with a certain energy. The ray passes through the pipeline 5 to be detected. Since the substances inside the pipeline 5 have different absorption and scattering degrees for the ray, the intensity of the ray changes after passing through the pipeline 5. The detector on the other side of the pipeline 5 receives the ray that has penetrated the pipeline 5 and converts it into an electrical signal. The detector usually adopts a flat panel detector or a linear array detector. The electrical signal output by the detector undergoes analog-to-digital conversion to become a digital signal. These digital signals are transmitted to the computer system and processed and analyzed by the dedicated image processing software matched with the DR detector. The software will perform operations such as image enhancement, filtering, and noise reduction to improve the quality and clarity of the image. The detection personnel identify the defects inside the pipeline 5, such as cracks, holes, corrosion, etc., by observing the processed image. The image processing software may also have some functions of automatic defect recognition to assist the detection personnel in making judgments. Place the first protection ring 31 and the second protection ring 38 at the designated positions. The insertion rods 37 on the surfaces of the first protection ring 31 and the second protection ring 38 are inserted into the socket sleeves 36. Rotate the positioning rod 32, and the positioning rod 32 is inserted into the storage block 34. By setting up the protection device 3, the influence of sundries on the use of the detection system is effectively reduced. When the detection system is in use, install the protection device 3 to prevent sundries from falling into the grooves on the surface of the guide rail 2, improve the practicability of the detection system, enhance the assistance of the protection device 3 to the detection system, and improve the detection accuracy of the detection system. In addition, by setting up the positioning device 4, when the detection system is in use, it is convenient for the worker to use the detection system for detection. The equipment uses the ray source in the system, the X-ray machine or radioactive isotope source, to generate a ray beam with a certain energy. The ray passes through the pipeline 5 to be detected. Since the substances inside the pipeline 5 have different absorption and scattering degrees for the ray, the intensity of the ray changes after passing through the pipeline 5. The detector on the other side of the pipeline 5 receives the ray that has penetrated the pipeline 5 and converts it into an electrical signal. The detector usually adopts a flat panel detector or a linear array detector. The electrical signal output by the detector undergoes analog-to-digital conversion to become a digital signal. These digital signals are transmitted to the computer system and processed and analyzed by the dedicated image processing software. The software will perform operations such as image enhancement, filtering, and noise reduction to improve the quality and clarity of the image. The detection personnel identify the defects inside the pipeline 5, such as cracks, holes, corrosion, etc., by observing the processed image. The image processing software may also have some functions of automatic defect recognition to assist the detection personnel in making judgments. Rotate the adjustment rod 41, the adjustment rod 41 pushes the limit plate 44, and the balance rod 42 guides the limit plate 44. The limit plate 44 abuts against the pipeline 5. By setting up the positioning device 4, it is effectively convenient for the worker to use the detection system for detection. When the detection system is in use, adjust the positioning device 4,It avoids the situation of shaking when workers use the detection system for detection, improves the practicability of the detection system, improves the stability of the detection system, and improves the working quality of the detection system.

Claims

1. A frame-type pipeline (5) girth weld DR detection system, comprising a DR detector (1), a guide rail (2), a pipeline (5) and a protective device (3), characterized in that: The guide rail (2) is sleeved on the surface of the pipeline (5), the DR detector (1) is installed on the surface of the guide rail (2), the protective device (3) is arranged on the surface of the DR detector (1), the protective device (3) comprises a first protective ring (31), the first protective ring (31) is sleeved on the surface of the guide rail (2), the surface of the guide rail (2) is sleeved and connected with a second protective ring (38), the first protective ring (31) and the second protective ring (38) are of the same size, a placement plate (35) is fixedly connected to the surfaces of the first protective ring (31) and the second protective ring (38), the placement plate (35) is placed on the surface of the DR detector (1), the surface of the DR detector (1) is fixedly connected with a stop bar (39), the placement plate (35) is plugged into the surface of the stop bar (39), and a limiting mechanism is arranged on the surface of the placement plate (35).

2. A frame type pipeline (5) girth weld DR detection system according to claim 1, characterized in that: The limiting mechanism comprises a storage block (34), the storage block (34) is fixedly connected to the surface of the placement plate (35), the surface of the support bar (39) is fixedly connected to the support block (33), the storage block (34) is plugged into the surface of the support block (33), the surface of the support block (33) is threadedly connected to a positioning rod (32), and the positioning rod (32) is plugged into the inner surface of the storage block (34).

3. A frame type pipeline (5) girth weld DR detection system according to claim 2, characterized in that: The surface of the placement plate (35) is fixedly connected to a sleeve (36), and the surface of the placement plate (35) is fixedly connected to an insertion rod (37), and the insertion rod (37) is plugged into the inner surface of the sleeve (36).

4. A frame type pipeline (5) girth weld DR detection system according to claim 1, characterized in that: A positioning device (4) is provided on the surface of the guide rail (2), and the positioning device (4) comprises a support plate (43). A plurality of the support plates (43) are fixedly connected to the surface of the guide rail (2), and the plurality of the support plates (43) are arranged in a ring shape around the pipeline (5).

5. A frame type pipeline (5) girth weld DR detection system according to claim 4, characterized in that: The inner surface of the support plate (43) is slidably connected to a balancing rod (42), and the surface of the balancing rod (42) is fixedly connected to a limiting plate (44).

6. A frame type pipeline (5) girth weld DR detection system according to claim 5, characterized in that: The surface of the limiting plate (44) is rotatably connected to an adjusting rod (41), and the adjusting rod (41) is threadedly connected to the surface of the supporting plate (43).

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