CN112729704A - Efficient pipeline welding seam air pressure detection device - Google Patents
Efficient pipeline welding seam air pressure detection device Download PDFInfo
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- CN112729704A CN112729704A CN202110098357.8A CN202110098357A CN112729704A CN 112729704 A CN112729704 A CN 112729704A CN 202110098357 A CN202110098357 A CN 202110098357A CN 112729704 A CN112729704 A CN 112729704A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/225—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for welds
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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses an efficient pipeline welding seam air pressure detection device, which comprises a mounting block, wherein a detection cavity penetrating through the mounting block is arranged in the mounting block, a clamping mechanism is arranged in the detection cavity and used for clamping a pipe wall, compressed air can be introduced into an annular air cavity formed by a pressurizing block and an air bag to pressurize an annular welding seam, a movable sliding block is assisted to slide on an annular sliding rail to drive the detection block to perform small-area circulation detection on the welding seam, and a spray bottle is controlled to mark the air leakage position through the amount of gas escaping after the air leakage of the welding seam is detected.
Description
Technical Field
The invention relates to the field of pipeline correlation, in particular to an efficient pipeline weld joint air pressure detection device.
Background
A pipeline is a device for transporting a gas, liquid or fluid with solid particles, connected by pipes, pipe couplings, valves, etc. The pipeline is an indispensable assembly in petroleum, chemical industry and various devices and equipment, the normal operation of device and equipment is directly influenced to the quality of pipeline welding quality, and the tradition inspection welding seam method is stifled the reality with the both ends of pipeline, lets in the gas of certain pressure in to the pipeline, immerses whole pipeline in the aquatic, has whether bubble to come to judge the pipeline closely knit according to the aquatic, or pours into the intraductal with water, keeps certain pressure and time, sees whether to produce the leakage. However, the conventional inspection method consumes a large amount of manpower and material resources, and cannot guarantee data rigidness, because bubbles are likely not leaked from the welding seam, the welding seam at the repair welding position is detected again after repair welding, and the whole pipeline needs to be detected again.
Disclosure of Invention
The invention aims to provide an efficient pipeline welding seam air pressure detection device to overcome the situation.
The invention is realized by the following technical scheme.
The invention discloses an efficient pipeline welding seam air pressure detection device which comprises an arranging block, wherein a detection cavity penetrating through the arranging block is arranged in the arranging block, a clamping mechanism is arranged in the detection cavity, and the clamping mechanism is used for clamping a pipe wall;
the detection device is characterized in that an annular slide rail is arranged in the detection cavity, a detection mechanism is arranged in the annular slide rail and comprises a circle of annular slide groove with an inward opening, a movable slide block is arranged in the annular slide groove in a sliding manner, a rotary cavity with an opening penetrating through the left end surface and the right end surface of the movable slide block is arranged in the movable slide block, a first rotary shaft is arranged on the lower inner wall of the rotary cavity in a rotating manner, a roller is fixedly arranged on the first rotary shaft, a rack is fixedly arranged on the inner wall on the right side of the annular slide groove, a movable motor is embedded in the lower inner wall of the rotary cavity, a second rotary shaft is fixedly arranged on the upper end surface of the movable motor, a gear is fixedly arranged on the second rotary shaft, a first connecting block is fixedly arranged on the upper end surface of the rotary cavity, a detection block is fixedly arranged on the upper end surface of, a first annular air cavity with an upward opening is arranged at the upper side of the first air inflating device, a circle of first annular air bag is fixedly arranged on the upper end face of the detection block, a detection cavity with an upward opening is arranged in the air duct, a fixed block is fixedly arranged on the inner wall of the lower side of the detection cavity, a stirring cavity is arranged in the fixed block, a third rotating shaft is rotatably arranged on the inner wall of the lower side of the stirring cavity, blades are fixedly arranged on the upper end face of the third rotating shaft, a first stirring rod is fixedly arranged on the third rotating shaft, a second stirring rod is fixedly arranged on the front end face of the first stirring rod, a marking block is fixedly arranged on the front end face of the fixed block, an extrusion cavity with a backward opening is arranged in the marking block, a fourth rotating shaft is fixedly arranged in the extrusion cavity, a torsional spring is sleeved outside the fourth rotating shaft, an extrusion rod is fixedly arranged, a spray bottle is fixedly arranged on the inner wall of the lower side of the extrusion cavity, a pressure nozzle is fixedly arranged on the left end face of the spray bottle, a spray head is fixedly arranged on the upper end face of the spray bottle, and the detection mechanism is used for detecting the air leakage of the pipeline through air bag wrapping and marking;
the detection intracavity is equipped with the forcing pipe, be equipped with loading system in the forcing pipe, loading system includes the second that the forcing pipe internal fixation was equipped with inflates the device, be equipped with the outside second annular air chamber of round opening in the forcing pipe, the second is inflated the device outer wall and is fixed and be equipped with round second annular gasbag, be equipped with the outside third annular air chamber of round opening in the forcing pipe, the second is inflated the device outer wall and is equipped with round third annular gasbag, second annular air chamber with third annular air chamber passes through the connecting channel intercommunication, be equipped with the intake pipe in the forcing pipe, the intake pipe inner wall is equipped with six ventiduct, ventiduct annular array distributes.
Preferably, the clamping mechanism comprises a first transmission cavity arranged in the mounting block, a clamping motor is fixedly arranged on the inner wall of the front side of the first transmission cavity, a fifth rotating shaft is fixedly arranged on the rear end face of the clamping motor, a first gear is fixedly arranged on the fifth rotating shaft, the first gear is meshed with a second gear, a sixth rotating shaft is symmetrically and fixedly arranged on the front end face and the rear end face of the second gear, a first bevel gear is fixedly arranged on the rear end face of the sixth rotating shaft, the first bevel gear is meshed with a second bevel gear, a seventh rotating shaft is fixedly arranged on the lower end face of the second bevel gear, a third bevel gear is fixedly arranged on the lower end face of the seventh rotating shaft, the third bevel gear is meshed with a fourth bevel gear, moving chutes with inward openings are symmetrically arranged on the inner walls of the front side and the rear side of the mounting block, clamping blocks are slidably arranged in the moving chutes, and first screw rods are connected, the first screw rod is fixedly connected with the fourth bevel gear, a pressure cavity with an opening towards the detection cavity is formed in the clamping block, the pressure cavity is close to the inner wall of the fourth bevel gear and is fixedly provided with a pressure block, the pressure block is far away from the end face of the pressure cavity and is fixedly provided with a compression spring, and the torsional spring is far away from the end face of the fourth bevel gear and is fixedly provided with a rubber strip.
Preferably, a servo motor is fixedly arranged in the placing block, an eighth rotating shaft is fixedly arranged on the rear end face of the servo motor, a second transmission cavity is arranged on the rear side of the detection cavity, the rear end face of the eighth rotating shaft is rotatably connected with the inner wall of the rear side of the second transmission cavity, a first belt wheel is fixedly arranged on the eighth rotating shaft, the first belt wheel is in friction connection with a second belt wheel through a transmission belt, a ninth rotating shaft is fixedly arranged in the second belt wheel, a fifth bevel gear is fixedly arranged on the front end face of the ninth rotating shaft, the fifth bevel gear is in meshing connection with a sixth bevel gear, a second lead screw is fixedly arranged on the left end face of the sixth bevel gear, an upper slide block is in threaded connection with the second lead screw, the upper slide block is in sliding connection with the upper chute, the inner wall of the upper side of the detection cavity is provided with the upper chute with a downward opening, and a second, the annular slide rail is fixedly arranged on the lower end face of the second connecting block, a seventh bevel gear is fixedly arranged on the eighth rotating shaft, the seventh bevel gear is meshed with the eighth bevel gear, a third lead screw is fixedly arranged on the left end face of the eighth bevel gear, a lower sliding block is connected to the third lead screw in a threaded manner, the lower sliding block is connected with a lower sliding groove in a sliding manner, the lower sliding groove with an upward opening is formed in the inner wall of the lower side of the detection cavity, a third connecting block is fixedly arranged on the upper end face of the lower sliding block, a telescopic rod is fixedly arranged on the upper end face of the third connecting block, and the pressure pipe is fixedly arranged on the left end.
Preferably, the spray bottle is filled with marking powder which can be used for marking positions, and the spraying amount of the marking powder sprayed out of the spray head through the spray head is proportional to the extrusion of the pressure nozzle.
Preferably, the other end of the air inlet pipe is connected with an air pressurizing device.
The invention has the beneficial effects that: the invention can pressurize the annular welding seam by introducing compressed air according to the annular air cavity formed by the pressurizing block and the air bag, assist the moving slide block to slide on the annular slide rail to drive the detecting block to carry out small-area circular detection on the welding seam, and control the spray bottle to mark the air leakage position by the amount of gas escaping after detecting the air leakage of the welding seam.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the embodiment of the present invention at A in FIG. 1;
FIG. 3 is a schematic view of the embodiment of the present invention in the direction B-B in FIG. 2;
FIG. 4 is a schematic view of the embodiment of the present invention in the direction of C-C in FIG. 3;
FIG. 5 is an enlarged schematic view of the embodiment of the present invention at D in FIG. 1;
FIG. 6 is a schematic view of the embodiment of the present invention in the direction E-E of FIG. 5;
FIG. 7 is a schematic view of the embodiment of the present invention in the direction F-F in FIG. 1;
FIG. 8 is an enlarged schematic view of the embodiment of the present invention at G in FIG. 7;
FIG. 9 is a schematic view of the embodiment of the present invention in the direction H-H in FIG. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-9, wherein for ease of description the orientations described below are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The efficient device for detecting the air pressure of the pipeline weld joint, which is described in conjunction with the accompanying drawings 1-9, comprises a mounting block 10, wherein a detection cavity 11 penetrating through the mounting block 10 is arranged in the mounting block, a clamping mechanism 90 is arranged in the detection cavity 11, and the clamping mechanism 90 is used for clamping the pipe wall;
the detection device is characterized in that an annular slide rail 12 is arranged in the detection cavity 11, a detection mechanism 91 is arranged in the annular slide rail 12, the detection mechanism 91 comprises a ring of annular slide grooves 13 with inward openings in the annular slide rail 12, a movable slide block 14 is arranged in the annular slide grooves 13 in a sliding manner, a rotary cavity 15 with an opening penetrating through the left end surface and the right end surface of the rotary cavity is arranged in the movable slide block 14, a first rotary shaft 16 is arranged on the lower inner wall of the rotary cavity 15 in a rotating manner, rollers 17 are fixedly arranged on the first rotary shaft 16, a rack 18 is fixedly arranged on the inner wall of the right side of the annular slide groove 13, a movable motor 19 is embedded on the inner wall of the lower side of the rotary cavity 15, a second rotary shaft 20 is fixedly arranged on the upper end surface of the movable motor 19, a gear 21 is fixedly arranged on the second rotary shaft 20, a first connecting block 22, the detection device is characterized in that six air ducts 24 with downward openings are arranged in the detection block 23, a first inflating device 25 is fixedly arranged in the detection block 23, a first annular air cavity 26 with an upward opening is arranged on the upper side of the first inflating device 25, a circle of first annular air bag 27 is fixedly arranged on the upper end face of the detection block 23, a detection cavity 87 with an upward opening is arranged in the air duct 24, a fixed block 28 is fixedly arranged on the inner wall of the lower side of the detection cavity 87, the fixed block 28 is internally provided with a poking cavity 31, a third rotating shaft 30 is rotatably arranged on the inner wall of the lower side of the poking cavity 31, a blade 29 is fixedly arranged on the upper end face of the third rotating shaft 30, a first poking rod 32 is fixedly arranged on the third rotating shaft 30, a second poking rod 33 is fixedly arranged on the front end face of the first poking rod 32, a marking block 39 is fixedly arranged on the front, a fourth rotating shaft 35 is fixedly arranged in the extrusion cavity 37, a torsion spring 36 is sleeved outside the fourth rotating shaft 35, an extrusion rod 34 is fixedly arranged outside the torsion spring 36, the right end face of the extrusion rod 34 is in contact with the left end face of the second shifting lever 33, a spray bottle 38 is fixedly arranged on the inner wall of the lower side of the extrusion cavity 37, a pressure nozzle 40 is fixedly arranged on the left end face of the spray bottle 38, a spray head 41 is fixedly arranged on the upper end face of the spray bottle 38, and the detection mechanism 91 detects the air leakage of the pipeline through air bag wrapping and marks the air leakage;
the detection device is characterized in that a pressurizing pipe 42 is arranged in the detection cavity 11, a pressurizing mechanism 92 is arranged in the pressurizing pipe 42, the pressurizing mechanism 92 comprises a second inflating device 43 fixedly arranged in the pressurizing pipe 42, a circle of second annular air chamber 88 with an outward opening is arranged in the pressurizing pipe 42, a circle of second annular air bag 44 is fixedly arranged on the outer wall of the second inflating device 43, a circle of third annular air chamber 89 with an outward opening is arranged in the pressurizing pipe 42, a circle of third annular air bag 45 is arranged on the outer wall of the second inflating device 43, the second annular air chamber 88 is communicated with the third annular air chamber 89 through a connecting channel 48, an air inlet pipe 47 is arranged in the pressurizing pipe 42, six air outlet channels 46 are arranged on the inner wall of the air inlet pipe 47, and the air outlet channels 46 are distributed in an annular array manner.
Advantageously, the clamping mechanism 90 includes a first transmission chamber 82 provided in the mounting block 10, a clamping motor 49 is fixedly provided on the front inner wall of the first transmission chamber 82, a fifth rotating shaft 50 is fixedly provided on the rear end face of the clamping motor 49, a first gear 51 is fixedly provided on the fifth rotating shaft 50, the first gear 51 is in meshing connection with a second gear 83, a sixth rotating shaft 52 is fixedly provided on the front and rear end faces of the second gear 83 symmetrically, a first bevel gear 53 is fixedly provided on the rear end face of the sixth rotating shaft 52, the first bevel gear 53 is in meshing connection with a second bevel gear 54, a seventh rotating shaft 55 is fixedly provided on the lower end face of the second bevel gear 54, a third bevel gear 56 is fixedly provided on the lower end face of the seventh rotating shaft 55, the third bevel gear 56 is in meshing connection with a fourth bevel gear 57, moving chutes 59 with inward opening are symmetrically provided on the front and rear inner walls of the mounting block 10, a clamping block 60 is arranged in the movable sliding groove 59 in a sliding mode, a first screw rod 58 is connected to the clamping block 60 in a threaded mode, the first screw rod 58 is fixedly connected with the fourth bevel gear 57, a pressure cavity 61 with an opening facing the detection cavity 11 is formed in the clamping block 60, a pressure block 62 is fixedly arranged on the inner wall, close to the fourth bevel gear 57, of the pressure cavity 61, a compression spring 63 is fixedly arranged on the end face, far away from the pressure cavity 61, of the pressure block 62, and a rubber strip 64 is fixedly arranged on the end face, far away from the fourth bevel gear 57, of the torsion spring 36.
Beneficially, a servo motor 65 is fixedly arranged in the mounting block 10, an eighth rotating shaft 66 is fixedly arranged on the rear end surface of the servo motor 65, a second transmission cavity 74 is arranged on the rear side of the detection cavity 11, the rear end surface of the eighth rotating shaft 66 is rotatably connected with the inner wall of the rear side of the second transmission cavity 74, a first pulley 68 is fixedly arranged on the eighth rotating shaft 66, the first pulley 68 is in frictional connection with a second pulley 70 through a transmission belt 69, a ninth rotating shaft 71 is fixedly arranged in the second pulley 70, a fifth bevel gear 72 is fixedly arranged on the front end surface of the ninth rotating shaft 71, the fifth bevel gear 72 is in meshing connection with a sixth bevel gear 73, a second lead screw 79 is fixedly arranged on the left end surface of the sixth bevel gear 73, an upper slide block 81 is connected on the second lead screw 79 in a threaded manner, the upper slide block 81 is in sliding connection with an upper slide groove 80, the upper inner wall of the detection cavity 11 is provided with the upper slide groove, the lower end face of the upper sliding block 81 is fixedly provided with a second connecting block 84, the lower end face of the second connecting block 84 is fixedly provided with the annular slide rail 12, the eighth rotating shaft 66 is fixedly provided with a seventh bevel gear 67, the seventh bevel gear 67 is meshed with an eighth bevel gear 75, the left end face of the eighth bevel gear 75 is fixedly provided with a third lead screw 76, the third lead screw 76 is connected with a lower sliding block 78 through a thread, the lower sliding block 78 is connected with a lower sliding groove 77 in a sliding manner, the inner wall of the lower side of the detection cavity 11 is provided with the lower sliding groove 77 with an upward opening, the upper end face of the lower sliding block 78 is fixedly provided with a third connecting block 85, the upper end face of the third connecting block 85 is fixedly provided with an expansion link 86, and the left end face of the expansion.
Advantageously, the spray bottle 38 contains marking powder which can be used to mark a position, the quantity of marking powder which can be sprayed out of the spray head 41 through the spray head 41 being proportional to the pressure exerted by the pressure nozzle 40.
Advantageously, the other end of said intake pipe 47 is connected to a device for air pressurization.
Application method
In the initial state, the torsion spring 36 and the compression spring 63 are in the normal state.
The pipeline is manually inserted into the detection cavity 11, the clamping motor 49 is started, the clamping motor 49 controls the fifth rotating shaft 50 to rotate, the fifth rotating shaft 50 drives the first gear 51 to rotate, the first gear 51 drives the second gear 83 to rotate, the second gear 83 drives the sixth rotating shaft 52 to rotate, the sixth rotating shaft 52 drives the first bevel gear 53 to rotate, the first bevel gear 53 drives the second bevel gear 54 to rotate, the second bevel gear 54 drives the seventh rotating shaft 55 to rotate, the seventh rotating shaft 55 drives the third bevel gear 56 to rotate, the third bevel gear 56 drives the fourth bevel gear 57 to rotate, the fourth bevel gear 57 drives the first lead screw 58 to rotate, the first lead screw 58 drives the clamping blocks 60 to move towards each other, when the clamping blocks 60 move to a certain degree, the rubber strips 64 contact with the pipe wall, the compression springs 63 are compressed, and the pressure blocks 62 are subjected to pressure changes, which indicates that the pipeline is clamped.
The servo motor 65 is started, the servo motor 65 controls the eighth rotating shaft 66 to rotate, the eighth rotating shaft 66 drives the seventh bevel gear 67 to rotate, the seventh bevel gear 67 drives the first belt pulley 68 to rotate, the first belt pulley 68 drives the second belt pulley 70 to rotate through the transmission belt 69, the second belt pulley 70 drives the ninth rotating shaft 71 to rotate, the ninth rotating shaft 71 drives the fifth bevel gear 72 to rotate, the fifth bevel gear 72 drives the sixth bevel gear 73 to rotate, the sixth bevel gear 73 drives the second screw rod 79 to rotate, the second screw rod 79 drives the upper slide block 81 to move, the upper slide block 81 drives the second connecting block 84 to move, the second connecting block 84 drives the annular slide rail 12 to move to a welding seam on the outer surface of the pipeline, meanwhile, the seventh bevel gear 67 drives the eighth bevel gear 75 to rotate, the eighth bevel gear 75 drives the third screw rod 76 to rotate, the third screw rod 76 drives the lower slide block 78 to move, the lower slide block 78 drives, the third connecting block 85 drives the telescopic rod 86 to move, and the telescopic rod 86 drives the pressurizing pipe 42 to move to the welding seam inside the pipeline.
The second inflating device 43 is inflated, the second annular air bag 44 and the third annular air bag 45 are expanded and attached to the inner wall of the pipeline, an external air compressor is started, air higher than the atmospheric pressure is pumped into an air cavity enclosed by the second annular air bag 44 and the third annular air bag 45 through an air inlet pipe 47,
the first inflating device 25 is started to inflate, the first annular air bag 27 expands and is tightly attached to a small area on the surface of the pipeline, the moving motor 19 is started, the moving motor 19 controls the second rotating shaft 20 to rotate, the second rotating shaft 20 drives the gear 21 to rotate, the gear 21 is meshed with the rack 18, and the gear 21 can drive the moving slide block 14 to annularly slide in the annular sliding groove 13 to detect the welding seam of air leakage.
After the condition that the pipeline welding seam has the not tight condition of gas leakage of welding to take place, gas will pass the welding seam space, blow blade 29 and rotate, blade 29 drives first driving lever 32 and rotates, first driving lever 32 drives second driving lever 33 and rotates, second driving lever 33 drives the extrusion stem 34 anticlockwise rotation, torsional spring 36 is compressed, extrusion stem 34 will extrude pressure mouth 40, the gas leakage is more, second driving lever 33 pivoted angle is big more, the extrusion that pressure mouth 40 received is just big more, more mark powder will be spout through shower nozzle 41, mark gas leakage department, make things convenient for follow-up inspection and repair welding.
After the repair welding of the welding seam is finished, the position of the small area of the device for detecting the current air leakage can be adopted again to judge whether the repair is successful.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides an efficient pipeline welding seam air pressure detection device, is including settling the piece, its characterized in that: a detection cavity penetrating through the inside of the placement block is arranged in the placement block, and a clamping mechanism is arranged in the detection cavity and used for clamping the pipe wall;
the detection device is characterized in that an annular slide rail is arranged in the detection cavity, a detection mechanism is arranged in the annular slide rail and comprises a circle of annular slide groove with an inward opening, a movable slide block is arranged in the annular slide groove in a sliding manner, a rotary cavity with an opening penetrating through the left end surface and the right end surface of the movable slide block is arranged in the movable slide block, a first rotary shaft is arranged on the lower inner wall of the rotary cavity in a rotating manner, a roller is fixedly arranged on the first rotary shaft, a rack is fixedly arranged on the inner wall on the right side of the annular slide groove, a movable motor is embedded in the lower inner wall of the rotary cavity, a second rotary shaft is fixedly arranged on the upper end surface of the movable motor, a gear is fixedly arranged on the second rotary shaft, a first connecting block is fixedly arranged on the upper end surface of the rotary cavity, a detection block is fixedly arranged on the upper end surface of, a first annular air cavity with an upward opening is arranged at the upper side of the first air inflating device, a circle of first annular air bag is fixedly arranged on the upper end face of the detection block, a detection cavity with an upward opening is arranged in the air duct, a fixed block is fixedly arranged on the inner wall of the lower side of the detection cavity, a stirring cavity is arranged in the fixed block, a third rotating shaft is rotatably arranged on the inner wall of the lower side of the stirring cavity, blades are fixedly arranged on the upper end face of the third rotating shaft, a first stirring rod is fixedly arranged on the third rotating shaft, a second stirring rod is fixedly arranged on the front end face of the first stirring rod, a marking block is fixedly arranged on the front end face of the fixed block, an extrusion cavity with a backward opening is arranged in the marking block, a fourth rotating shaft is fixedly arranged in the extrusion cavity, a torsional spring is sleeved outside the fourth rotating shaft, an extrusion rod is fixedly arranged, a spray bottle is fixedly arranged on the inner wall of the lower side of the extrusion cavity, a pressure nozzle is fixedly arranged on the left end face of the spray bottle, a spray head is fixedly arranged on the upper end face of the spray bottle, and the detection mechanism is used for detecting the air leakage of the pipeline through air bag wrapping and marking;
the detection intracavity is equipped with the forcing pipe, be equipped with loading system in the forcing pipe, loading system includes the second that the forcing pipe internal fixation was equipped with inflates the device, be equipped with the outside second annular air chamber of round opening in the forcing pipe, the second is inflated the device outer wall and is fixed and be equipped with round second annular gasbag, be equipped with the outside third annular air chamber of round opening in the forcing pipe, the second is inflated the device outer wall and is equipped with round third annular gasbag, second annular air chamber with third annular air chamber passes through the connecting channel intercommunication, be equipped with the intake pipe in the forcing pipe, the intake pipe inner wall is equipped with six ventiduct, ventiduct annular array distributes.
2. A high efficiency gas pressure testing device for pipe welding seam as claimed in claim 1, wherein: the clamping mechanism comprises a first transmission cavity arranged in the mounting block, a clamping motor is fixedly arranged on the inner wall of the front side of the first transmission cavity, a fifth rotating shaft is fixedly arranged on the rear end face of the clamping motor, a first gear is fixedly arranged on the fifth rotating shaft and meshed with a second gear, a sixth rotating shaft is fixedly arranged on the front end face and the rear end face of the second gear symmetrically, a first bevel gear is fixedly arranged on the rear end face of the sixth rotating shaft and meshed with a second bevel gear, a seventh rotating shaft is fixedly arranged on the lower end face of the second bevel gear, a third bevel gear is fixedly arranged on the lower end face of the seventh rotating shaft and meshed with a fourth bevel gear, moving chutes with inward openings are symmetrically arranged on the inner wall of the front side and the rear side of the mounting block, a clamping block is arranged in the moving chutes in a sliding manner, and a first lead screw is connected in the clamping block by screw threads, the first screw rod is fixedly connected with the fourth bevel gear, a pressure cavity with an opening towards the detection cavity is formed in the clamping block, the pressure cavity is close to the inner wall of the fourth bevel gear and is fixedly provided with a pressure block, the pressure block is far away from the end face of the pressure cavity and is fixedly provided with a compression spring, and the torsional spring is far away from the end face of the fourth bevel gear and is fixedly provided with a rubber strip.
3. A high efficiency gas pressure testing device for pipe welding seam as claimed in claim 1, wherein: a servo motor is fixedly arranged in the placing block, an eighth rotating shaft is fixedly arranged on the rear end face of the servo motor, a second transmission cavity is arranged on the rear side of the detection cavity, the rear end face of the eighth rotating shaft is rotationally connected with the inner wall of the rear side of the second transmission cavity, a first belt wheel is fixedly arranged on the eighth rotating shaft, the first belt wheel is in friction connection with a second belt wheel through a transmission belt, a ninth rotating shaft is fixedly arranged in the second belt wheel, a fifth bevel gear is fixedly arranged on the front end face of the ninth rotating shaft, the fifth bevel gear is in meshing connection with a sixth bevel gear, a second lead screw is fixedly arranged on the left end face of the sixth bevel gear, an upper slide block is in threaded connection with the second lead screw, the upper slide block is in sliding connection with the upper slide groove, the upper slide groove with a downward opening is arranged on the inner wall of the upper side of the detection cavity, a second connecting block is fixedly arranged on the lower end face, the eighth rotating shaft is fixedly provided with a seventh bevel gear, the seventh bevel gear is meshed with the eighth bevel gear, the left end face of the eighth bevel gear is fixedly provided with a third lead screw, the third lead screw is connected with a lower sliding block in a threaded manner, the lower sliding block is connected with a lower sliding groove in a sliding manner, the inner wall of the lower side of the detection cavity is provided with the lower sliding groove with an upward opening, the upper end face of the lower sliding block is fixedly provided with a third connecting block, the upper end face of the third connecting block is fixedly provided with a telescopic rod, and the left end face of the telescopic rod is fixedly provided with the pressure pipe.
4. A high efficiency gas pressure testing device for pipe welding seam as claimed in claim 1, wherein: the spray bottle is filled with marking powder which can be used for marking positions, and the spraying amount of the marking powder sprayed out of the spray head through the spray head is in direct proportion to the extrusion of the pressure nozzle.
5. A high efficiency gas pressure testing device for pipe welding seam as claimed in claim 1, wherein: and the other end of the air inlet pipe is connected with air pressurization equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110098357.8A CN112729704A (en) | 2021-01-25 | 2021-01-25 | Efficient pipeline welding seam air pressure detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110098357.8A CN112729704A (en) | 2021-01-25 | 2021-01-25 | Efficient pipeline welding seam air pressure detection device |
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| CN112729704A true CN112729704A (en) | 2021-04-30 |
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| CN202110098357.8A Withdrawn CN112729704A (en) | 2021-01-25 | 2021-01-25 | Efficient pipeline welding seam air pressure detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114280089A (en) * | 2021-12-29 | 2022-04-05 | 福建省锅炉压力容器检验研究院 | Thermal power generation key part welding seam stress testing device based on X-ray |
| CN116296151A (en) * | 2023-05-24 | 2023-06-23 | 淄博市特种设备检验研究院 | Weld joint inspection device for pressure vessel inspection and use method |
-
2021
- 2021-01-25 CN CN202110098357.8A patent/CN112729704A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114280089A (en) * | 2021-12-29 | 2022-04-05 | 福建省锅炉压力容器检验研究院 | Thermal power generation key part welding seam stress testing device based on X-ray |
| CN114280089B (en) * | 2021-12-29 | 2023-11-10 | 福建省锅炉压力容器检验研究院 | Thermal power generation key part weld stress testing device based on X-rays |
| CN116296151A (en) * | 2023-05-24 | 2023-06-23 | 淄博市特种设备检验研究院 | Weld joint inspection device for pressure vessel inspection and use method |
| CN116296151B (en) * | 2023-05-24 | 2023-07-25 | 淄博市特种设备检验研究院 | Weld joint inspection device for pressure vessel inspection and use method |
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