CN114739904A - Radiographic testing device and method for safety welding seam of pressure vessel connecting pipe - Google Patents
Radiographic testing device and method for safety welding seam of pressure vessel connecting pipe Download PDFInfo
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Abstract
The invention discloses a pressure vessel connecting pipe safe welding seam ray detection device which comprises a detection assembly, wherein a protection assembly, a winding assembly and a positioning assembly are arranged on the surface of the detection assembly; wherein, the detection assembly is used for carrying out the welding seam to pressure vessel and detects, and the detection assembly includes the welding seam detector body, and the top electric connection of welding seam detector body has the wire. According to the invention, through the arrangement of the winding assembly, the wire can be wound and stored, so that the exposed length of the wire can be adjusted; through locating component's setting, can fix the depositing to test probe, effectively avoid the handle to expose when not using and receive the phenomenon emergence that the collision of external effort caused the damage outward, further prolonged test probe's life. The use method of the radiographic testing device for the safety welding line of the pressure vessel adapter tube has the advantages that the steps are simple and reasonable, the effect of automatic reset is realized by using the cooperation of the elastic sheet and the spring, and the radiographic testing device is convenient to operate.
Description
Technical Field
The invention relates to the technical field of weld joint detection, in particular to a device and a method for detecting a safe weld joint of a pressure vessel connecting pipe by ray.
Background
The welding seam defect detector can detect, position, evaluate and diagnose various defects (cracks, inclusions, air holes, incomplete penetration, incomplete fusion and the like) in a workpiece quickly, conveniently, nondestructively and accurately. The device is used for both laboratories and engineering field detection. The method is widely applied to the fields of detection of welding seams in manufacturing of boiler pressure vessels, quality evaluation of welding seams in engineering machinery manufacturing industry, ferrous metallurgy industry, steel structure manufacturing, ship manufacturing, petroleum and natural gas equipment manufacturing and the like which need defect detection and quality control.
At present, a welding seam detection device is frequently used when a pressure container connecting pipe is subjected to safe welding seam radiographic detection, the existing welding seam detection device connects a probe and a machine body through a wire, the length of the wire cannot be adjusted according to actual use requirements in the detection process, so that the wire is too long to hinder detection personnel to work in the use process, and the phenomenon that the wire is wound or even knotted frequently occurs in the carrying process, so that the welding seam detection device is not beneficial to next use; meanwhile, when the probe is not used, the probe is not fixedly placed by a placing mechanism, so that the probe is easily damaged by collision of external acting force, the service life of the probe is shortened, and therefore, the device and the method for detecting the safe welding line of the pressure vessel connecting pipe are provided.
Disclosure of Invention
The invention aims to solve the problems of the defects in the background art and provides a device and a method for detecting a safe welding line of a pressure vessel connecting pipe by ray.
In order to achieve the purpose, the invention provides the following technical scheme:
a pressure vessel nozzle safe welding seam ray detection device comprises:
the surface of the detection component is provided with a protection component, a winding component and a positioning component;
the detection assembly is used for detecting the welding seam of the pressure container and comprises a welding seam detector body, the top of the welding seam detector body is electrically connected with a lead, and one end, far away from the welding seam detector body, of the lead is communicated with a detection probe;
the welding seam detector comprises a detection assembly, a protection assembly, a welding seam detection device body and a welding seam detection device, wherein the protection assembly is used for shielding and protecting the welding seam detection device body, and is movably arranged on the front surface of the detection assembly;
the winding assembly is used for winding and storing the conducting wire and is arranged on the surface of the conducting wire;
the positioning assembly is used for fixing and storing the detection probe, and is arranged on one side of the welding seam detector body.
Preferably, the detection assembly further comprises a handle, two ends of the handle are fixedly connected to one side of the welding seam detector body, and a sponge sleeve is sewn on the surface of the handle.
Preferably, the protection assembly comprises a cover plate hinged to the surface of the welding seam detector body, the cover plate is buckled on the front surface of the welding seam detector body, an object placing cavity is formed in one side, opposite to the welding seam detector body, of the cover plate, and the top of the cover plate is rotatably connected with a book clamp through a torsion spring rotating shaft.
Preferably, the winding assembly comprises a hollow shell sleeved in the middle of the surface of the wire, a rotating column is arranged in an inner cavity of the hollow shell, one end of the rotating column movably penetrates through the outer side of the hollow shell, a groove is formed in the other end of the hollow shell, a convex ball matched with the groove is fixedly connected to the middle shaft of the inner wall surface of the hollow shell, a through hole for the wire to pass through is formed in the surface of the rotating column, the inner wall surface of the through hole is attached to the surface of the wire, and the central axes of the rotating column, the groove and the convex ball are all on the same straight line.
Preferably, a knob is movably sleeved at one end, far away from the groove, of the rotating column, and a plurality of rubber strips distributed at equal intervals are fixedly connected to the surface of the knob.
Preferably, a limiting hole is formed in the surface of the rotating column, a limiting block is slidably connected to an inner cavity of the limiting hole, an elastic sheet is fixedly connected to one side of the limiting block, one side, far away from the limiting block, of the elastic sheet is fixedly connected with the inner wall surface of the limiting hole, the surface of the limiting block is fixedly connected with the inner wall surface of the knob, four positioning lugs are fixedly connected to one side, opposite to the hollow shell, of the knob, and the positioning lugs are distributed at equal intervals in the annular direction, and positioning slots for the positioning lugs to be inserted are formed in the surface of the hollow shell.
Preferably, the positioning assembly comprises a placing barrel fixedly connected to one side of the welding seam detector body, the placing barrel and the handle are respectively located on two sides of the welding seam detector body, a through hole matched with the detection probe is formed in the top of the placing barrel, an arc-shaped baffle is movably arranged in an inner cavity of the through hole, a cavity is formed between the placing barrel and the arc-shaped baffle, and the detection probe is arranged in the cavity.
Preferably, the inside of the placing barrel is fixedly connected with an arc-shaped guide rod, the inside of the arc-shaped baffle is provided with an arc-shaped sliding groove for the arc-shaped guide rod to slide, a spring is sleeved on the surface of the arc-shaped guide rod, two ends of the spring are fixedly connected with the placing barrel and the arc-shaped sliding groove respectively, and the through hole, the arc-shaped baffle and the arc-shaped guide rod are coaxial.
Preferably, one side of the surface of the arc-shaped baffle is vertically and fixedly connected with a shifting strip, and the height of the shifting strip is equal to that of the arc-shaped baffle.
Preferably, the weld joint detector body comprises an industrial camera, and the industrial camera is used for collecting weld joint images and transmitting the images to an algorithm program for image processing. The image processing specifically comprises the following steps:
step 1), image preprocessing: carrying out histogram gray equalization on the collected welding line image, setting the dimension of the gray image as M x N, and MN represents the pixel summary of the image, wherein the normalized histogram is represented as follows:
P(rk)＝nk/MN，k＝0，1，…，L-1
wherein, P (r)k) Representing a grey level rkEstimation of the probability of occurrence in an image, rkRepresenting the gray value of the k-th level, nkIn the representation imageA gray scale of rkThe sum of all components of the normalized histogram is 1;
step 2), gray stretching: carrying out gray level transformation on the gray value of a pixel point in the welding line image by adopting a nonlinear stretching function;
step 3), filtering the weld image: filtering and denoising the welding seam image by adopting a wavelet filtering algorithm, comprising the following steps of: selecting a wavelet with N layers to perform wavelet decomposition on the signal; threshold value processing: after decomposition, each layer of coefficient is quantized by selecting a proper threshold value; and (3) reconstruction: reconstructing the signal using the processed coefficients; wherein the suitable threshold is as follows:
where T is a threshold value, ω represents a wavelet transform coefficient,
representing wavelet coefficients, thresholds, after shrinkage
Sigma is the standard deviation of noise, and N is the number of pixel points in the image;
step 4), detecting image edges: adopting a Prewitt operator to carry out edge detection on the image, eliminating information irrelevant to detection, and keeping important structural attributes representing the image;
step 5), weld joint feature extraction and identification: extracting two edge lines of the welding line, and extracting the welding line from the picture according to the edge lines; then, according to the size of the image and the precision requirement, the welding seam image is divided to obtain a series of small areas with specific sizes, the texture features are extracted, a histogram is obtained, the welding seam area and the welding seam center are determined, and the welding seam is identified.
The invention also provides a pressure vessel connecting pipe safe weld ray detection method, which adopts the pressure vessel connecting pipe safe weld ray detection device to detect the weld at the connecting pipe of the pressure vessel, and specifically comprises the following steps:
s1, welding seam detection is carried out on the connecting pipe of the pressure container by adopting a detection assembly: the hand penetrates through a gap between the handle and the welding seam detector body and holds the welding seam detector body, so that the sponge sleeve is attached to the back of the hand to carry out auxiliary support, the working state and parameters of the detection probe can be manually adjusted through the matching use of a display screen and a key on the surface of the welding seam detector body, the detection probe is reused for radioactive survey, the wire transmits information detected by the detection probe to the welding seam detector body, and the judgment can be carried out through the display screen of the welding seam detector body;
s2, adopting the protection component to carry out auxiliary operation on the welding seam detection or carry out protection operation on the welding seam detector body: the recording sheet is clamped in the inner cavity of the storage cavity by the book clamp, and a user can record detected data at any time; after the detection is finished, the cover plate can be turned and buckled to the front surface of the welding line detector body for protection;
s3, winding and storing the wire by using a winding component: one hand holds the hollow shell, the other hand holds the knob and pulls the knob, so that the knob moves towards the axial direction of the rotating column, the knob drives the positioning lug and the limiting block to synchronously move, the limiting block stretches the elastic sheet until the positioning lug is separated from the inner cavity of the positioning slot, the knob can be unlocked, at the moment, the knob is rotated again, the knob drives the positioning lug, the limiting block, the rotating column, the groove and the through hole to synchronously rotate by taking the rotating column as an axis, the wire can be wound, and the exposed length of the wire is further shortened; after the length is adjusted to the required length, the knob is slowly loosened, and finally the positioning lug is inserted into the inner cavity of the corresponding positioning slot through the elastic restoring force of the elastic sheet;
s4, fixing and storing the detection probe by adopting a positioning assembly: a hand is stirred and is dialled the strip, it slides at the inner chamber of placing a section of thick bamboo to dial the strip, make cowl open, and the arc guide arm inserts the inner chamber of arc spout gradually, the spring receives the extrusion shrink of arc baffle, move to furthest until the arc spout, another hand takes test probe and vertically places in the inner chamber of placing a section of thick bamboo, and make test probe and the junction of wire place the inside of through-hole in, loosen again and dial the strip, elastic restoring force through the spring, finally make cowl closed, can make test probe place stably in place the cavity of placing a section of thick bamboo and through-hole formation.
Compared with the prior art, the invention has the advantages and positive effects that:
1. according to the safe welding seam ray detection device for the pressure container connecting pipe, the wire can be wound and stored through the winding assembly, so that the exposed length of the wire can be adjusted, meanwhile, the wire can be completely wound to the inner cavity of the hollow shell when not used, the phenomenon of winding or knotting in the carrying process is effectively avoided, the device is convenient to use next time, and the application range and the use convenience of the detection device are further improved;
2. according to the safe welding seam ray detection device for the pressure container connecting pipe, the detection probe can be fixedly stored through the arrangement of the positioning assembly, the phenomenon that the handle is exposed outside and damaged due to collision of external acting force when not used is effectively avoided, and the service life of the detection probe is further prolonged;
3. the use method of the pressure vessel connecting pipe safe weld ray detection device is simple and reasonable in steps, achieves the effect of automatic reset by using the cooperation of the elastic sheet and the spring, and has the advantage of convenience in operation.
4. According to the safe welding seam ray detection device for the pressure container connecting pipe, the welding seam image is processed, enhanced, extracted in characteristic and identified, so that the accurate detection of the welding seam is realized, and the welding seam defect can be conveniently processed in the later period.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a first structural schematic diagram of a pressure vessel connecting pipe safety weld ray detection device according to an embodiment of the invention;
FIG. 2 is a structural schematic diagram II of the pressure vessel connecting pipe safety weld ray detection device according to the embodiment of the invention;
FIG. 3 is a third schematic structural diagram of a safe welding seam ray detection device for a pressure vessel adapter according to an embodiment of the present invention;
FIG. 4 is a schematic view of a cutting structure of a winding assembly according to an embodiment of the present invention;
FIG. 5 is a first schematic diagram illustrating an exploded structure of a rolling assembly according to an embodiment of the present invention;
FIG. 6 is a second schematic diagram of an exploded view of the winding assembly in accordance with an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of a positioning assembly according to an embodiment of the present invention;
FIG. 8 is an enlarged structural view of point A in FIG. 7 according to an embodiment of the present invention;
fig. 9 is a work flow chart of a method for using the pressure vessel nozzle safety weld ray detection device according to the embodiment of the invention.
In the figure:
1. a detection component; 101. a weld detector body; 102. a wire; 103. detecting a probe; 104. a handle; 105. a sponge sleeve;
2. a guard assembly; 201. a cover plate; 202. a storage cavity; 203. book clips;
3. a winding component; 301. empty shell; 302. rotating the column; 303. a groove; 304. a convex ball; 305. a through hole; 306. a knob; 307. a limiting hole; 308. a limiting block; 309. a spring plate; 310. positioning the bump; 311. positioning the slot;
4. a positioning assembly; 401. placing the cylinder; 402. a through hole; 403. an arc-shaped baffle plate; 404. an arc-shaped guide rod; 405. an arc-shaped chute; 406. a spring; 407. and (4) a poking strip.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
The invention is further described with reference to the following figures and specific examples.
Example 1
As shown in fig. 1 to 8, a pressure vessel nozzle safety weld ray detection device according to an embodiment of the present invention includes: the device comprises a detection component 1, wherein a protection component 2, a winding component 3 and a positioning component 4 are arranged on the surface of the detection component 1;
the detection assembly 1 is used for detecting a weld of a pressure container, and the detection assembly 1 comprises a weld detector body 101, the top of the weld detector body 101 is electrically connected with a lead 102, and one end, far away from the weld detector body 101, of the lead 102 is communicated with a detection probe 103;
the protection component 2 is used for shielding and protecting the welding seam detector body 101, and the protection component 2 is movably arranged on the front surface of the detection component 1;
the winding component 3 is used for winding and storing the lead 102, and the winding component 3 is arranged on the surface of the lead 102;
wherein, locating component 4 is used for fixing and depositing test probe 103, and locating component 4 sets up in one side of welding seam detector body 101.
As shown in fig. 1-3, the detecting assembly 1 further includes a handle 104, both ends of the handle 104 are fixedly connected to one side of the weld seam detecting apparatus body 101, and a sponge cover 105 is sewn on the surface of the handle 104. The use of the handle 104 facilitates the user's handling of the device, while the use of the sponge cover 105 enhances the user's comfort when holding the device.
As shown in fig. 1-3, the protection component 2 includes a cover plate 201 hinged to the surface of the welding seam detector body 101, the cover plate 201 is fastened to the front surface of the welding seam detector body 101, a storage cavity 202 is formed in one side of the cover plate 201 opposite to the welding seam detector body 101, and a book clamp 203 is rotatably connected to the top of the cover plate 201 through a torsion spring rotating shaft. Utilize apron 201 can play the guard action to the display screen and the button on welding seam detector body 101 surface, simultaneously, utilize the cooperation of putting thing chamber 202 and books clamp 203 to use, can fix the record list in the inside of putting thing chamber 202 to the data that the user record detected.
As shown in fig. 1-6, the winding assembly 3 includes a hollow shell 301 sleeved on the middle portion of the surface of the wire 102, a rotating column 302 is disposed in an inner cavity of the hollow shell 301, one end of the rotating column 302 movably penetrates the outer side of the hollow shell 301, a groove 303 is disposed at the other end of the hollow shell 301, a convex ball 304 matched with the groove 303 is fixedly connected to a central axis of the inner wall surface of the hollow shell 301, a through hole 305 for the wire 102 to pass through is disposed on the surface of the rotating column 302, an inner wall surface of the through hole 305 is attached to the surface of the wire 102, and central axes of the rotating column 302, the groove 303 and the convex ball 304 are all on the same straight line.
As shown in fig. 4-6, a knob 306 is movably sleeved at one end of the rotating column 302 away from the groove 303, and a plurality of rubber strips distributed at equal intervals are fixedly connected to the surface of the knob 306. The knob 306 can increase the contact area between the palm of the user's hand and the rotating column 302 to facilitate the user to rotate the rotating column 302.
As shown in fig. 5-6, a limiting hole 307 is formed in the surface of the rotating column 302, a limiting block 308 is slidably connected to an inner cavity of the limiting hole 307, an elastic piece 309 is fixedly connected to one side of the limiting block 308, one side of the elastic piece 309 away from the limiting block 308 is fixedly connected to an inner wall surface of the limiting hole 307, the surface of the limiting block 308 is fixedly connected to an inner wall surface of the knob 306, four positioning protrusions 310 are fixedly connected to one side of the knob 306 opposite to the hollow shell 301, the positioning protrusions 310 are distributed at equal intervals along the annular direction, and a positioning slot 311 is formed in the surface of the hollow shell 301 and used for the positioning protrusions 310 to be inserted into. When the positioning protrusion 310 is inserted into the inner cavity of the positioning insertion slot 311, it can limit the rotation post 302, so that the rotation post 302 can be stably maintained in a certain state.
As shown in fig. 1, 2, 7, and 8, the positioning assembly 4 includes a placing cylinder 401 fixedly connected to one side of the welding seam detector body 101, the placing cylinder 401 and the handle 104 are respectively located at two sides of the welding seam detector body 101, a through hole 402 adapted to the detecting probe 103 is formed at the top of the placing cylinder 401, an arc-shaped baffle 403 is movably arranged in an inner cavity of the through hole 402, a cavity is formed between the placing cylinder 401 and the arc-shaped baffle 403, and the detecting probe 103 is placed in the cavity. The detection probe 103 can be fixedly placed by utilizing the placing barrel 401 and the arc-shaped baffle 403, and the phenomenon that the detection probe is damaged due to collision of external acting force is effectively prevented.
As shown in fig. 8, an arc guide rod 404 is fixedly connected to the inside of the placing cylinder 401, an arc chute 405 for the arc guide rod 404 to slide is formed in the arc baffle 403, a spring 406 is sleeved on the surface of the arc guide rod 404, two ends of the spring 406 are fixedly connected to the placing cylinder 401 and the arc chute 405 respectively, and the through hole 402, the arc baffle 403 and the arc guide rod 404 are coaxial. The spring 406 can be used for automatically resetting the arc-shaped baffle 403, so that the arc-shaped baffle 403 can be quickly opened and closed, and the arc-shaped guide rod 404 can be used for limiting and guiding the spring 406, so that the reverse elastic force generated by the spring 406 during compression can be always on the same arc line with the direction of the pressure.
As shown in fig. 7, a shifting bar 407 is vertically and fixedly connected to one side of the surface of the arc-shaped baffle 403, and the height of the shifting bar 407 is equal to the height of the arc-shaped baffle 403. The use of the toggle bar 407 facilitates the user toggling the arc 403.
Further, the welding seam detector body comprises an industrial camera, and the industrial camera is used for collecting welding seam images and transmitting the images to an algorithm program for image processing. The image processing specifically comprises the following steps:
step 1), image preprocessing: carrying out histogram gray equalization on the collected welding line image, setting the dimension of the gray image as M x N, and MN represents the pixel summary of the image, wherein the normalized histogram is represented as follows:
P(rk)＝nk/MN，k＝0，1，…，L-1
wherein, P (r)k) Representing a grey level rkEstimation of the probability of occurrence in an image, rkRepresenting the gray value of the k-th level, nkRepresenting a grey scale of r in the imagekThe sum of all components of the normalized histogram is 1;
step 2), gray stretching: carrying out gray level transformation on the gray value of a pixel point in the welding line image by adopting a nonlinear stretching function;
step 3), filtering the weld image: filtering and denoising the welding seam image by adopting a wavelet filtering algorithm, comprising the following steps of: selecting a wavelet with N layers to perform wavelet decomposition on the signal; threshold value processing: after decomposition, each layer of coefficient is quantized by selecting a proper threshold value; and (3) reconstruction: reconstructing the signal using the processed coefficients; wherein the suitable threshold is as follows:
where T is a threshold value, ω represents a wavelet transform coefficient,
representing the wavelet coefficients, thresholds, after shrinkage
Sigma is the standard deviation of noise, and N is the number of pixel points in the image;
step 4), detecting image edges: adopting a Prewitt operator to carry out edge detection on the image, eliminating information irrelevant to detection, and keeping important structural attributes representing the image;
step 5), weld joint feature extraction and identification: extracting two edge lines of the welding line, and extracting the welding line from the picture according to the edge lines; then, according to the size of the image and the precision requirement, the welding seam image is divided to obtain a series of small areas with specific sizes, the texture features are extracted, a histogram is obtained, the welding seam area and the welding seam center are determined, and the welding seam is identified.
As shown in fig. 9, the present embodiment further provides a method for detecting a safety weld of a pressure vessel connection pipe by using a ray detection device for a safety weld of a pressure vessel connection pipe, which specifically includes the following steps:
s1, welding seam detection is carried out on the connecting pipe of the pressure container by adopting the detection assembly 1: a hand penetrates through a gap between the handle 104 and the welding seam detector body 101 and holds the welding seam detector body 101 to enable the sponge sleeve 105 to be attached to the back of the hand for auxiliary support, the working state and parameters of the detection probe 103 can be manually adjusted through the matched use of a display screen and keys on the surface of the welding seam detector body 101, the detection probe 103 is reused for radioactive survey, the lead 102 transmits information detected by the detection probe 103 to the welding seam detector body 101, and the judgment can be carried out through the display screen of the welding seam detector body 101;
s2, adopting the protection component 2 to carry out auxiliary operation on the welding seam detection or carry out protection operation on the welding seam detector body 101: the book clip 203 is used for clamping the record sheet in the inner cavity of the object placing cavity 202, and a user can record detected data at any time; after the detection is finished, the cover plate 201 can be turned over and buckled to the front surface of the welding line detector body 101 for protection;
s3, winding and storing the lead 102 by using the winding component 3: holding the hollow shell 301 by one hand, holding the knob 306 by the other hand and pulling the knob 306 to enable the knob 306 to move towards the axial direction of the rotating column 302, driving the positioning lug 310 and the limiting block 308 to synchronously move by the knob 306, stretching the elastic sheet 309 by the limiting block 308 until the positioning lug 310 is separated from the inner cavity of the positioning slot 311, unlocking the knob 306, then rotating the knob 306, driving the positioning lug 310, the limiting block 308, the rotating column 302, the groove 303 and the through hole 305 to synchronously rotate by taking the rotating column 302 as an axis, and rolling the conducting wire 102, thereby shortening the exposed length of the conducting wire 102; after the required length is adjusted, the knob 306 is slowly loosened, and finally the positioning lug 310 is inserted into the inner cavity of the corresponding positioning slot 311 through the elastic restoring force of the elastic sheet 309;
s4, fixing and storing the detection probe 103 by adopting the positioning assembly 4: one hand is used for poking the poking bar 407, the poking bar 407 drives the arc-shaped baffle 403 to slide in the inner cavity of the placement barrel 401, the arc-shaped baffle 403 is opened, the arc-shaped guide rod 404 is gradually inserted into the inner cavity of the arc-shaped sliding groove 405, the spring 406 is squeezed and contracted by the arc-shaped baffle 403 until the arc-shaped sliding groove 405 moves to the maximum, the other hand is used for taking the detection probe 103 and longitudinally placing the detection probe 103 in the inner cavity of the placement barrel 401, the connection part of the detection probe 103 and the lead 102 is placed in the through hole 402, the poking bar 407 is loosened, the elastic restoring force of the spring 406 is used, and finally the arc-shaped baffle 403 is closed, so that the detection probe 103 can be stably placed in the cavity formed by the placement barrel 401 and the through hole 402.
The use method of the pressure vessel connecting pipe safe welding line ray detection device comprises four use steps, the steps are simple and reasonable, the detection assembly 1 is firstly utilized to carry out welding line detection on the connecting pipe of the pressure vessel, then the protection assembly 2 is utilized to carry out auxiliary operation on the welding line detection or carry out protection operation on the welding line detector body 101, then the winding assembly 3 is utilized to wind and store the lead 102, and finally the positioning assembly 4 is utilized to fix and store the detection probe 103, so that the device has the advantage of convenience in operation.
In practical application, the pressure vessel connecting pipe safe welding seam ray detection device can be used for winding and storing the lead 102 through the arrangement of the winding component 3, so that the exposed length of the lead 102 can be adjusted, meanwhile, the lead 102 can be completely wound into the inner cavity of the hollow shell 301 when not in use, the phenomenon of winding or knotting in the carrying process is effectively avoided, the device is convenient to use for the next time, and the application range and the use convenience of the detection device are further improved; through locating component 4's setting, can fix and deposit test probe 103, effectively avoid handle 104 to expose when not using and receive the phenomenon that the collision of external effort caused the damage and take place, further prolonged test probe 103's life. The use method of the pressure vessel connecting pipe safe welding seam ray detection device is simple and reasonable in steps, achieves the effect of automatic reset by using the matching of the elastic sheet 309 and the spring 406, and has the advantage of convenience in operation.
The present invention can be easily implemented by those skilled in the art from the above detailed description. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.
Claims (10)
1. The utility model provides a safe welding seam radiographic testing device is taken over to pressure vessel which characterized in that includes:
the device comprises a detection assembly (1), wherein a protection assembly (2), a winding assembly (3) and a positioning assembly (4) are arranged on the surface of the detection assembly (1);
the detection assembly (1) is used for detecting a weld of the pressure container, the detection assembly (1) comprises a weld detector body (101), the top of the weld detector body (101) is electrically connected with a lead (102), and one end, far away from the weld detector body (101), of the lead (102) is communicated with a detection probe (103);
the welding seam detector comprises a detection assembly (1), a protection assembly (2) and a welding seam detector body (101), wherein the protection assembly (2) is used for shielding and protecting the welding seam detector body (101), and the protection assembly (2) is movably arranged on the front surface of the detection assembly (1);
the winding component (3) is used for winding and storing the conducting wire (102), and the winding component (3) is arranged on the outer side surface of the conducting wire (102);
the positioning assembly (4) is used for fixing and storing the detection probe (103), and the positioning assembly (4) is arranged on one side of the welding seam detector body (101).
2. The pressure vessel nozzle safety weld ray detection device according to claim 1, characterized in that: the detection assembly (1) further comprises a handle (104), two ends of the handle (104) are fixedly connected to one side of the welding seam detector body (101), and a sponge sleeve (105) is sewn on the surface of the handle (104).
3. The pressure vessel connecting pipe safe weld ray detection device according to claim 1, characterized in that: the protection assembly (2) comprises a cover plate (201) hinged to the surface of the welding seam detector body (101), the cover plate (201) is buckled on the front surface of the welding seam detector body (101), an object placing cavity (202) is formed in one side, opposite to the welding seam detector body (101), of the cover plate (201), and the top of the cover plate (201) is rotatably connected with a book clamp (203) through a torsion spring rotating shaft.
4. The pressure vessel nozzle safety weld ray detection device according to claim 1, characterized in that: wire (102) surface middle part's ghost (301) is located including the cover to rolling subassembly (3), the inner chamber of ghost (301) is provided with rotates post (302), the one end movably of rotating post (302) runs through to the outside of ghost (301), recess (303) are seted up to the other end of ghost (301), the axis department fixedly connected with of ghost (301) internal wall has protruding ball (304) with recess (303) looks adaptation, through hole (305) that supply wire (102) to pass are seted up on the surface of rotation post (302), the inner wall face laminating of through hole (305) is in the surface of wire (102), the axis that rotates post (302), recess (303) and protruding ball (304) all is on same straight line.
5. The pressure vessel nozzle safety weld ray detection device according to claim 4, characterized in that: the one end activity cover that rotates post (302) and keep away from recess (303) is equipped with knob (306), the fixed surface of knob (306) is connected with a plurality of equidistant distribution's rubber strip.
6. The pressure vessel nozzle safety weld ray detection device according to claim 5, characterized in that: spacing hole (307) have been seted up on the surface of rotation post (302), the inner chamber sliding connection of spacing hole (307) has stopper (308), one side fixedly connected with shell fragment (309) of stopper (308), shell fragment (309) are keeping away from one side of stopper (308) and the internal wall fixed connection of spacing hole (307), the surface of stopper (308) and the internal wall fixed connection of knob (306), knob (306) and relative one side fixedly connected with four locating lug (310) of equidistant distribution in the annular direction of sky shell (301), locating slot (311) that supply locating lug (310) to insert to establish are seted up on the surface of sky shell (301).
7. The pressure vessel nozzle safety weld ray detection device according to claim 2, characterized in that: locating component (4) are including a section of thick bamboo (401) of placing of fixed connection in welding seam detector body (101) one side, place a section of thick bamboo (401) and handle (104) and be located the both sides of welding seam detector body (101) respectively, place the top of a section of thick bamboo (401) and set up through-hole (402) with test probe (103) looks adaptation, the inner chamber activity of through-hole (402) is provided with cowl (403), place and form the cavity between a section of thick bamboo (401) and cowl (403), test probe (103) can be arranged in the cavity.
8. The pressure vessel connecting pipe safe weld ray detection device according to claim 7, characterized in that: place inside fixedly connected with arc guide arm (404) of a section of thick bamboo (401), arc spout (405) that supplies arc guide arm (404) gliding are seted up to the inside of cowl (403), the surface cover of arc guide arm (404) is equipped with spring (406), the both ends of spring (406) respectively with place a section of thick bamboo (401) and arc spout (405) fixed connection, through-hole (402), cowl (403) and arc guide arm (404) are for arranging along same longitudinal axis.
9. The pressure vessel nozzle safety weld ray detection device according to claim 7, characterized in that: one side of the surface of the arc-shaped baffle plate (403) is vertically and fixedly connected with a shifting strip (407), and the height of the shifting strip (407) is equal to that of the arc-shaped baffle plate (403).
10. A method for detecting a safe welding line of a pressure vessel connecting pipe by using ray, which is characterized by detecting the welding line at the connecting pipe of the pressure vessel by using the safe welding line ray detection device of the pressure vessel connecting pipe as claimed in any one of claims 1 to 9, and specifically comprises the following steps:
s1, welding seam detection is carried out on the connecting pipe of the pressure container by adopting the detection assembly (1): the handle penetrates through a gap between the handle (104) and the welding seam detector body (101) and holds the welding seam detector body (101) to enable the sponge sleeve (105) to be attached to the back of the hand to support in an auxiliary mode, through the matched use of a display screen and keys on the surface of the welding seam detector body (101), the working state and parameters of the detection probe (103) can be adjusted artificially, the detection probe (103) is used for carrying out radioactive survey, the lead (102) transmits information detected by the detection probe (103) to the welding seam detector body (101), and the judgment can be carried out through the display screen of the welding seam detector body (101);
s2, adopting the protection component (2) to carry out auxiliary operation on the welding seam detection or carry out protection operation on the welding seam detector body (101): the book clip (203) is used for clamping the record sheet in the inner cavity of the object placing cavity (202), and a user can record detected data at any time; after the detection is finished, the cover plate (201) can be turned over and buckled to the front surface of the welding line detector body (101) for protection;
s3, winding and storing the lead (102) by using a winding component (3): one hand holds the hollow shell (301), the other hand holds the knob (306) and pulls the knob (306), so that the knob (306) moves towards the axial direction of the rotating column (302), the knob (306) drives the positioning lug (310) and the limiting block (308) to synchronously move, the limiting block (308) stretches the elastic sheet (309) until the positioning lug (310) is separated from the inner cavity of the positioning slot (311), the knob (306) can be unlocked, the knob (306) is rotated at the moment, the knob (306) drives the positioning lug (310), the limiting block (308), the rotating column (302), the groove (303) and the through hole (305) to synchronously rotate by taking the rotating column (302) as an axis, the conducting wire (102) can be wound, and the exposed length of the conducting wire (102) is shortened; after the length is adjusted to the required length, the knob (306) is slowly loosened, and finally the positioning lug (310) is inserted into the inner cavity of the corresponding positioning slot (311) through the elastic restoring force of the elastic sheet (309);
s4, fixing and storing the detection probe (103) by adopting the positioning assembly (4): one hand is used for poking the poking strip (407), the poking strip (407) drives the arc-shaped baffle (403) to slide in the inner cavity of the placement barrel (401), the arc-shaped baffle (403) is opened, the arc-shaped guide rod (404) is gradually inserted into the inner cavity of the arc-shaped sliding groove (405), the spring (406) is squeezed and contracted by the arc-shaped baffle (403) until the arc-shaped sliding groove (405) moves to the maximum, the other hand is used for taking the detection probe (103) and longitudinally placing the detection probe in the inner cavity of the placement barrel (401), the connection part of the detection probe (103) and the lead (102) is placed in the through hole (402), the poking strip (407) is released, and finally the arc-shaped baffle (403) is closed through the elastic restoring force of the spring (406), so that the detection probe (103) can be stably placed in the cavity formed by the placement barrel (401) and the through hole (402).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310092199.4A CN116309335A (en) | 2022-04-01 | 2022-04-01 | Weld joint feature extraction and identification method based on image processing |
| CN202210347473.3A CN114739904B (en) | 2022-04-01 | 2022-04-01 | Radiographic testing device and method for safety welding line of pressure vessel connecting pipe |
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| CN202210347473.3A CN114739904B (en) | 2022-04-01 | 2022-04-01 | Radiographic testing device and method for safety welding line of pressure vessel connecting pipe |
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| CN202210347473.3A Active CN114739904B (en) | 2022-04-01 | 2022-04-01 | Radiographic testing device and method for safety welding line of pressure vessel connecting pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6530278B1 (en) * | 1999-05-21 | 2003-03-11 | Matthew D. Bowersox | Ultrasonic testing of tank car welds |
| CN209231271U (en) * | 2018-12-17 | 2019-08-09 | 天津市东之源科技有限责任公司 | A kind of automated ultrasonic experiment for non-destructive testing experiment instrument |
| CN212364280U (en) * | 2020-06-19 | 2021-01-15 | 武汉武桥检测工程有限公司 | Cross welding seam detection device for steel structure of highway bridge |
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| CN114739904B (en) | 2022-12-16 |
| CN116309335A (en) | 2023-06-23 |
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