CN203037593U - Radiographic inspection device for detecting weld joints of connecting tubes of pressure vessels of nuclear reactors - Google Patents
Radiographic inspection device for detecting weld joints of connecting tubes of pressure vessels of nuclear reactors Download PDFInfo
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- CN203037593U CN203037593U CN 201220717170 CN201220717170U CN203037593U CN 203037593 U CN203037593 U CN 203037593U CN 201220717170 CN201220717170 CN 201220717170 CN 201220717170 U CN201220717170 U CN 201220717170U CN 203037593 U CN203037593 U CN 203037593U
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Abstract
The utility model provides a radiographic inspection device for detecting weld joints of connecting tubes of pressure vessels of nuclear reactors. The radiographic inspection device comprises a main sealing pipe assembly, an air bag assembly, a head supporting assembly, a tail supporting assembly and a positioning ring assembly. During usage of the radiographic inspection device, the device is pushed into the connecting tube of the pressure vessel to be tested, a positioning ring contacts with barrel wall of the tested connecting tube to finish axial positioning, an air bag is moved to the position where the weld joint is to be detected, radial positioning is finished through the head supporting assembly and the tail supporting assembly, then the air bag is aerated to drain liquids at the position of the weld joint, and a radiation source is led deep to the position inside the air bag, which corresponds to the weld joint, through an inner source guide tube to conduct circumferential exposure photographing, thus, the weld joint of the connecting tube of the pressure vessel of the nuclear reactor can be detected. The detecting device has the advantages of being simple in structure, convenient to use, high in positioning accuracy, safe, reliable and the like.
Description
Technical field
The utility model relates to a kind of nuclear reactor pressure container pick-up unit, particularly relates to a kind of ray detecting apparatus for the adapter tube and safety end of nuclear reactor pressure vessel weld seam detection.
Background technology
Along with the scarcity day by day of the energy, nuclear power more and more is subject to people's attention as a kind of novel energy, and nuclear power station quantity all over the world is also more and more.Nuclear power station is to utilize energy that nuclear fission or nuclear fusion reaction discharge to produce the generating plant of electric energy.Nuclear power station replaces the boiler of thermal power station with nuclear reactor, and " burning " that special shape takes place in nuclear reactor with nuclear fuel produces heat, makes nuclear energy be transformed into heat energy and heats water generates steam.Utilize steam to enter steam turbine by pipeline, promote the turbodynamo generating, make mechanical energy be transformed into electric energy.In general, the turbodynamo of nuclear power station and electric equipment and common thermal power station are similar, and its profoundness mainly is nuclear reactor.Nuclear reactor is called atomic pile or reactor again, is to have assembled nuclear fuel to realize can controlling on a large scale the device of fission chain reaction.The closed container of settling nuclear reactor and bearing its huge operating pressure is called nuclear reactor pressure container (also claiming reactor vessel).Nuclear reactor pressure container is to guarantee that nuclear reactor normally moves, and prevents the important device of nuclear leakage, therefore must guarantee the quality of nuclear reactor pressure container.
The austenitic stainless steel weld joint that adapter tube and safety end of nuclear reactor pressure vessel weld seam (dissimilar metal welding line) and adapter are connected with trunk line (metal welding seam of the same race) is the important component part of nuclear power station nuclear pressure-bearing boundary, also is that nuclear power plant reactor pressure vessel manufacture process is examined enforcement difficulty maximum in the level pipeline field-mounted process, maximum weld seams has problems.In case nuclear power station puts into operation, these parts under the high radiation rugged surroundings of High Temperature High Pressure, are easy to form fatigue damage with long-term work, in order to guarantee the quality of nuclear reactor pressure container, require must detect above-mentioned two place's weld seams during reloading.Detect except carrying out 100% ultrasonic examination, also will carry out ray detection.But because adapter tube and safety end of nuclear reactor pressure vessel twice position while welding is special, during being in and reloading, this can be full of cooling medium all the time, the testing staff can't directly arrive, will make detection difficulty increase like this, be necessary to develop the special-purpose ray the cannot-harm-detection device of a cover for this reason pressure vessel is taken over photographs that circumferentially expose of safe end weld seam, and then realize the ray detection to pressure vessel adapter safe end weld seam.
The utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of and takes over the ray detecting apparatus of weld seam detection for nuclear reactor pressure container, to solve the problem that the adapter tube and safety end of nuclear reactor pressure vessel weld seam is difficult for detecting in the prior art.
Reach other relevant purposes for achieving the above object, the utility model provides a kind of ray detecting apparatus of taking over weld seam detection for nuclear reactor pressure container, it comprises: assembly is responsible in sealing, and described sealing is responsible for assembly and is comprised a hollow sleeve, is provided with stem pipe in the described hollow sleeve; Air bag component, described air bag component is positioned at the front end of described hollow sleeve, and described air bag component comprises an air bag, described air bag is fixedlyed connected with described hollow sleeve, the stem pipe stretches in the described air bag in described, and described interior stem pipe cooperates with described air sac sealing, and described air bag is provided with snorkel; The head support assembly, described head support assembly is positioned at described air bag component rear, described head support assembly comprises a head support holder and several head support connecting rods, described head support holder is fixedlyed connected with described hollow sleeve, the medial extremity of described head support connecting rod and described head support holder are hinged, described several head support connecting rods also are connected with first driving mechanism, and described first driving mechanism drives described head support connecting rod and outwards opens; The afterbody supporting component, described afterbody supporting component is positioned at described head support assembly rear, described afterbody supporting component comprises an afterbody support fixation seat and several afterbody support link, described afterbody support fixation seat is fixedlyed connected with described hollow sleeve, the medial extremity of described afterbody support link and described afterbody support fixation seat are hinged, described several afterbody support link also are connected with second driving mechanism, and described second driving mechanism drives described afterbody support link and outwards opens; The locating ring assembly, described locating ring assembly is positioned at described afterbody supporting component rear, described locating ring assembly comprises splined shaft, spline housing, locating ring, described hub splines is on described hollow sleeve, described spline housing slidably is enclosed within on the described splined shaft, and the both sides of described spline housing are provided with spacing ring, and described spline housing is connected with described locating ring, described spline housing is connected with the 3rd driving mechanism, and described the 3rd driving mechanism drives described spline housing and slides along described splined shaft.
Preferably, described air bag component also comprises an outside flange, a front end inner flange and a rear end inner flange, described outside flange is positioned at described air bag outside, described outside flange is connected with described hollow sleeve, described front end inner flange, rear end inner flange are positioned at described air bag inside, described rear end inner flange is connected with described outside flange, and described interior stem pipe is resisted against on the described front end inner flange.
Preferably, the endoporus of described interior stem pipe is a blind hole, the position consistency of described blind hole bottom and described air bag axis centre line.
Preferably, described first driving mechanism comprises the head cylinder block, described head cylinder block is fixedlyed connected with described hollow sleeve, described head cylinder block is provided with the head support cylinder, the piston rod of described head support cylinder is connected with the head support slide block, described head support slide block is provided with several head gas cylinder rods, described head gas cylinder rod is consistent with described head support connecting rod quantity and the position is corresponding one by one, one end of described head gas cylinder rod and described head support slide block are hinged, the other end of described head gas cylinder rod and corresponding head support rod hinge connection.
Preferably, described head cylinder block is provided with the head cylinder guide rod consistent with the flexible direction of head support cylinder, and described head support slide block is provided with head cylinder guide pin bushing, and described head cylinder guide pin bushing is enclosed within on the described head cylinder guide rod.
Preferably, the outboard end of described head support connecting rod is provided with the connecting rod roller.
Preferably, described second driving mechanism comprises the afterbody cylinder block, described afterbody cylinder block is fixedlyed connected with described hollow sleeve, described afterbody cylinder block is provided with afterbody and supports cylinder, the piston rod that described afterbody supports cylinder is connected with the afterbody support slipper, described afterbody support slipper is provided with several afterbody air cylinder connecting rods, described afterbody air cylinder connecting rod is consistent with described afterbody support link quantity and the position is corresponding one by one, one end of described afterbody air cylinder connecting rod and described afterbody support slipper are hinged, and the other end of described afterbody air cylinder connecting rod is hinged with corresponding afterbody support link.
Preferably, described afterbody cylinder block is provided with afterbody and supports the consistent afterbody cylinder guide rod of the flexible direction of cylinder, and described afterbody support slipper is provided with afterbody cylinder guide pin bushing, and described afterbody cylinder guide pin bushing is enclosed within on the described afterbody cylinder guide rod.
Preferably, the outboard end of described afterbody support link is provided with support claw.
Preferably, described the 3rd driving mechanism comprises a locating ring cylinder block, and described locating ring cylinder block is fixedlyed connected with described hollow sleeve, and described locating ring cylinder block is provided with the locating ring cylinder, and the piston rod of described locating ring cylinder is connected with described spline housing.
As mentioned above, ray detecting apparatus for nuclear reactor pressure container adapter weld seam detection of the present utility model has following beneficial effect: this ray detecting apparatus lifts whole device into nuclear reactor in use, and this device pushed in pressure vessel to be measured takes over, make locating ring touch adapter bucket wall to be measured and finish axial location, air bag is moved to the position that to detect weld seam, by the head support assembly, the afterbody supporting component is finished radial location, give airbag aeration then, make air bag with the fluid removal of commissure, then by interior stem pipe radiographic source is deep into the photograph that circumferentially exposes of the inner position corresponding with weld seam of air bag, so just can the weld seam of nuclear reactor pressure container adapter be detected.That this pick-up unit has is simple in structure, easy to use, positional accuracy is high, advantage such as safe and reliable, be fit to very much the weld seam that nuclear reactor pressure container is taken over is detected, and then can effectively guarantee the quality of nuclear reactor pressure container, guarantee the nuclear plant safety operation.
Description of drawings
Fig. 1 is the utility model embodiment one-piece construction front view.
Fig. 2 is the utility model embodiment one-piece construction side view.
Fig. 3 is the perspective view of the utility model embodiment
Fig. 4 is the structural representation of the utility model embodiment air bag component.
Fig. 5 is the front view of the utility model embodiment head support assembly.
Fig. 6 is the side view of the utility model embodiment head support assembly.
Fig. 7 is the front view of the utility model embodiment afterbody supporting component.
Fig. 8 is the side view of the utility model embodiment afterbody supporting component.
Fig. 9 is the front view of the utility model embodiment locating ring assembly.
Figure 10 is the side view of the utility model embodiment locating ring assembly.
Figure 11 seals the structural representation of being responsible for assembly for the utility model embodiment.
Figure 12 is the utility model embodiment axial positioning structure synoptic diagram.
Figure 13 is the radial location structural representation of the utility model embodiment.
Structural representation when Figure 14 detects first weld seam for the utility model embodiment.
Structural representation when Figure 15 detects second weld seam for the utility model embodiment.
The element numbers explanation
Embodiment
Below by particular specific embodiment embodiment of the present utility model is described, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this instructions.
See also Fig. 1 to Figure 15.Notice, the appended graphic structure that illustrates of this instructions, ratio, size etc., equal contents in order to cooperate instructions to disclose only, understand and reading for person skilled in the art scholar, be not in order to limit the enforceable qualifications of the utility model, so technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not influencing under the effect that the utility model can produce and the purpose that can reach, all should still drop on the technology contents that the utility model discloses and get in the scope that can contain.Simultaneously, quote in this instructions as " on ", D score, " left side ", " right side ", " centre " reach the term of " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under no essence change technology contents, when also being considered as the enforceable category of the utility model.
As shown in Figure 1, 2, 3, the utility model provides a kind of and takes over the ray detecting apparatus of weld seam detection for nuclear reactor pressure container, and this ray detecting apparatus comprises air bag component 1, head support assembly 2, afterbody supporting component 3, locating ring assembly 4 and sealing person in charge assembly 5.Envelope is responsible for assembly 5 and is comprised a hollow sleeve 14, and air bag component 1, head support assembly 2, afterbody supporting component 3, locating ring assembly 4 are positioned on the hollow sleeve 14 and are arranged in order backward in the past, and air bag component 1 is positioned at the front end of hollow sleeve 14.
As shown in Figure 4, air bag component 1 comprises air bag 7, and air bag 7 is fixedlyed connected with hollow sleeve 14.For the ease of connecting, the outside of air bag 7 is provided with outside flange 9, and air bag 7 inside are provided with the rear end inner flange 13 corresponding with external flange 9 positions, and rear end inner flange 13 is fixedlyed connected by attachment screw 10 with external flange 9.The front end of hollow sleeve 14 also is provided with an adapter sleeve 11, and adapter sleeve 11 is fixedlyed connected with hollow sleeve 14, and adapter sleeve 11 is fixedlyed connected by attachment screw 12 with outside flange 9.Be provided with stem pipe 6 in the hollow sleeve 14, interior stem pipe 6 extend into the inside of air bag 7.Support for convenience, also be provided with a front end inner flange 8 in the air bag 7, the front end of interior stem pipe 6 is resisted against on the front end inner flange 8.The endoporus of interior stem pipe 6 is a blind hole, the position consistency of the axis centre line of blind hole bottom and air bag 7.Air bag 7 also is connected with a snorkel, can be to inflation in the air bag 7 by snorkel.
Shown in Fig. 5,6, head support assembly 2 comprises a head support holder 24, and head support holder 24 is fixed on the hollow sleeve 14 by long connecting rod pin 27.The medial extremity of head support holder 24 and three head support link 21 is hinged, and the outboard end of head support connecting rod 21 is provided with 16, three head support link of connecting rod roller 21 of nylon along circumferentially evenly distributing.Three head support link 21 are connected with first driving mechanism, and the outboard end that first driving mechanism can drive three head support link 21 swings up and down along hinged end separately, and then realizes that head support connecting rod 21 outwards opens and inwardly shrinks.
As a kind of optimal way, first driving mechanism comprises a head cylinder block 19, head cylinder block 19 is fixedlyed connected with hollow sleeve 14, head cylinder block 19 is provided with head support cylinder 15, the piston rod of head support cylinder 15 is connected with head support slide block 18, head support slide block 18 is provided with head cylinder rod movable bearing support 23, one end of head cylinder rod movable bearing support 23 and three head air cylinder connecting rods 22 is hinged, the position of three head air cylinder connecting rods 22 is corresponding one by one with the position of three head support link 21, and the other end of head gas cylinder rod 22 is hinged with the middle part of corresponding head support connecting rod 21 by link pin 17.When the piston rod of head support cylinder 15 is protruding, can promote head support slipper 18 moves right, and then drive head support connecting rod 21 outwards opens, when the piston rod of head support cylinder 15 inwardly shrinks, drive head support slide block 18 and be moved to the left, and then drive inwardly contraction of head support connecting rod 21.
In order to prevent that the position skew from appearring in head support slide block 18 in moving process, head cylinder block 19 is provided with and four head cylinder guide rods 26, head cylinder guide rod 26 bearing of trends are consistent with head support cylinder 15 flexible directions, and head cylinder guide rod 26 is connected with head cylinder block 19 by axle sleeve baffle plate 20.Head support slide block 18 is provided with four head cylinder guide pin bushings 25, the position of head cylinder guide pin bushing 25 is corresponding with the position of head cylinder guide rod 26, head cylinder guide pin bushing 25 is enclosed within on the head cylinder guide rod 26, and head support slide block 18 just can move around along head cylinder guide rod 26 like this.
Shown in Fig. 7,8, afterbody supporting component 3 comprises an afterbody support fixation seat 39, and afterbody support fixation seat 39 is fixedlyed connected with hollow sleeve 14 by long connecting rod pin 38.The medial extremity of afterbody support fixation seat 39 and three afterbody support link 33 is hinged, and the outboard end of afterbody support link 33 is provided with support claw 32, can produce enough friction force like this in case locking apparatus produces slip at tube wall to be measured.In order to prevent support claw 32 transition upsets, a side of support claw 32 also is equipped with 29, three afterbody support link of baffle plate 33 along circumferentially evenly distributing, between adjacent two afterbody support link 33 adjacent 120 °.Three head support link 33 are connected with second driving mechanism, and the outboard end that second driving mechanism can drive three afterbody support link 33 swings up and down along hinged end separately, and then realize that afterbody support link 33 outwards opens and inwardly shrink.
Second driving mechanism comprises an afterbody cylinder block 36, afterbody cylinder block 36 is fixedlyed connected with hollow sleeve 14, afterbody cylinder block 36 is provided with afterbody and supports cylinder 28, the piston rod that afterbody supports cylinder 28 is connected with afterbody support slipper 31, afterbody support slipper 31 is provided with afterbody cylinder rod movable bearing support 37, one end of afterbody cylinder rod movable bearing support 37 and three afterbody air cylinder connecting rods 34 is hinged, the position of three afterbody air cylinder connecting rods 34 is corresponding one by one with three afterbody support link 33, and the other end of three afterbody air cylinder connecting rods 34 is hinged by the middle part of link pin 30 and three afterbody support link 33.When the piston rod of afterbody support cylinder 28 is protruding, can promote afterbody support slipper 31 moves right, and then drive afterbody air cylinder connecting rod 34 outwards opens, when the piston rod of afterbody support cylinder 28 inwardly shrinks, drive afterbody support slipper 31 and be moved to the left, and then drive inwardly contraction of afterbody air cylinder connecting rod 34.
In order to prevent that the position skew from appearring in afterbody support slipper 31 in moving process, afterbody cylinder block 36 is provided with and four afterbody cylinder guide rods 40, afterbody cylinder guide rod 40 bearing of trends are consistent with afterbody support cylinder 28 flexible directions, and afterbody cylinder guide rod 40 is connected with afterbody cylinder block 36 by axle sleeve baffle plate 35.Afterbody support slipper 31 is provided with four afterbody cylinder guide pin bushings 41, the position of afterbody cylinder guide pin bushing 41 is corresponding with the position of portion's cylinder guide rod 40 end to end, afterbody cylinder guide pin bushing 41 is enclosed within on the afterbody cylinder guide rod 40, and afterbody support slipper 31 just can move around along afterbody cylinder guide rod 40 like this.
Shown in Fig. 9,10, locating ring assembly 5 comprises a splined shaft 48, and splined shaft 48 is enclosed within on the hollow sleeve 14, and splined shaft 48 is fixedlyed connected with hollow sleeve 14.Splined shaft 48 is provided with a spline housing 44, spline housing 44 can slide at splined shaft 48, the both sides of spline housing 44 are provided with spacing ring 42,45, spline housing 44 is connected with locating ring 43 by several spokes, spline housing 44 is connected with the 3rd driving mechanism, and the 3rd driving mechanism drives described spline housing and slides along described splined shaft.The 3rd driving mechanism comprises a locating ring cylinder block 46, locating ring cylinder block 46 is fixedlyed connected with hollow sleeve 14, locating ring cylinder block 46 is provided with locating ring cylinder 47, the piston rod of locating ring cylinder 47 is connected with spline housing 44, and the piston rod of locating ring cylinder 47 is flexible can be driven locating ring 43 and move around between two spacing rings 42,45 along hollow sleeve 14.
As shown in figure 11, it is supportive bodies of entire equipment that assembly 5 is responsible in sealing, and other assemblies all are fixed on envelope and are responsible on the hollow sleeve 14 of assembly 5.The outside of hollow sleeve 14 also is provided with an outer stem pipe 59, outer stem pipe 59 is connected with hollow sleeve 14 by inside and outside stem pipe flange 57, inside and outside stem pipe flange 57 is connected by attachment screw 58 with hollow sleeve 14, is provided with sealing O type circle 56 between inside and outside stem pipe flange 57 and the hollow sleeve 14.Fixedly connected by attachment screw 54 between outer stem pipe 59 and the interior stem pipe 6, be provided with inside and outside interior the stem between outer stem pipe 59 and the interior stem pipe 6 and manage O type circle 53 and pad 55.Go back admission piece weldment 49 on the inside and outside stem pipe flange 57, valve weldment 49 is provided with admission piece fixture 52, be provided with admission piece O type circle 50 between valve weldment 49 and the admission piece fixture 52, valve weldment 49 is connected with admission piece movable part 51 by admission piece fixture 52, valve weldment 49, admission piece O type circle 50, admission piece movable part 51 and admission piece fixture 52 are formed a valve, and this valve can be used for the source of the gas input of above-mentioned each assembly cylinder and air bag snorkel.
As shown in figure 12, this ray detecting apparatus in use, at first make head support assembly 2, afterbody supporting component 3 and air bag 7 be in fully the state that shrinks, the outer stem of stem pipe and device of external source machine is managed 57 be connected and insert external air source, make locating ring 43 be adjacent to spacing ring 45 simultaneously.By crane and long handle instrument whole device is lifted in the nuclear reactor then.And by the long handle instrument, the pressure vessel that this ray detecting apparatus is pushed pressure vessel 60 is taken in 61, makes locating ring 43 touch the tube wall of adapter to be measured, so just can finish the axial location of this ray detecting apparatus.This pick-up unit adopts circular locating ring directly to contact as the strong point with pressure vessel, no matter installs and how to overturn, and the contact point of locating ring and tube wall is the same to the distance of point source, and therefore axial positional accuracy and ratio of precision are higher.
As shown in figure 13, after circumferentially finish the location, by operation head support cylinder 15, afterbody support cylinder 28 head support connecting rod 21, afterbody support link 33 are opened, this ray detecting apparatus just is fixed in the pressure vessel adapter 61 and finishes radial location like this.Head support assembly 2, the afterbody supporting component 3 of this pick-up unit all adopt the umbrella supporting construction, 3 support link are respectively arranged, angle is 120 ° between each support link, support link is taken in 61 at pressure vessel and is launched fully, just can guarantee that the center of this ray detecting apparatus will be in the circumferential center of pressure vessel adapter 61, so positional accuracy radially and the precision of this device are higher.
As shown in figure 14, after radial location is finished, slightly shrink afterbody supporting component 3, operation locating ring cylinder 47, be subjected to tube wall to the reacting force of locating ring 43, whole ray detecting apparatus can move axially up to the axial centre of air bag 7 position near first weld seam 63 along location spline housing 44.When the axial centre of air bag 7 near the same metal welding seam of the first weld seam 63() the position time, send feedback signal near switch, locating ring cylinder 47 stops action, afterbody supporting component 3 opens radial location again fully.Inflate in air bag 7 by the valve on the hollow sleeve 14 then, make air bag 7 internal gas pressures arrive 50kpa, this moment, air bag 7 degrees of expansion can be got rid of the liquid that pressure vessel is taken over relevant position in 61.Shake the source machine by the outside then 192Ir radiographic source 65 is imported air bag 7 from outer stem pipe 57, interior stem pipe 6, make its bottom that is resisted against blind hole, at this moment can circumferentially exposing takes a picture carries out radiological survey X to first weld seam 63.Adopt the outside to shake the source machine and make radiographic source external, safe and reliable, can avoid radiographic source risk out of control.
After treating that first weld seam 63 has checked, shake the source machine by the outside radiographic source 65 is derived from air bag 7, and the gas in the air bag 7 is discharged.And then afterbody supporting component 3 is shunk, and make locating ring cylinder 47 continue action, can make air bag 7 continue to move closer to backward second weld seam 64(safe end weld seam like this), when the axial centre of air bag 7 during near the position of second weld seam 64, send feedback signal near switch, locating ring cylinder 47 stops action, and afterbody supporting component 3 opens radial location again fully.Inflate in air bag 7 by the valve on the hollow sleeve 14 then, make air bag 7 internal gas pressures arrive 50kpa, this moment, air bag 7 degrees of expansion can be got rid of the liquid that pressure vessel is taken over relevant position in 61.Shake the source machine by the outside then 192Ir radiographic source 65 is imported air bag 7 from outer stem pipe 57, interior stem pipe 6, make its bottom that is resisted against blind hole, at this moment can circumferentially exposing takes a picture carries out radiological survey X to second weld seam 64.
This ray detecting apparatus lifts whole device in the nuclear reactor in use, and this device pushed in pressure vessel to be measured takes over, make locating ring touch adapter bucket wall to be measured and finish axial location, air bag is moved to the position that to detect weld seam, by the head support assembly, the afterbody supporting component is finished radial location, give airbag aeration then, make air bag with the fluid removal of commissure, then by interior stem pipe radiographic source is deep into the photograph that circumferentially exposes of the inner position corresponding with weld seam of air bag, so just can the weld seam of nuclear reactor pressure container adapter be detected.That this pick-up unit has is simple in structure, easy to use, positional accuracy is high, advantage such as safe and reliable, be fit to very much the weld seam that nuclear reactor pressure container is taken over is detected, and then can effectively guarantee the quality of nuclear reactor pressure container, guarantee the nuclear plant safety operation.In sum, the utility model has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not is used for restriction the utility model.Any person skilled in the art scholar all can be under spirit of the present utility model and category, and above-described embodiment is modified or changed.Therefore, have in the technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of finishing under spirit that the utility model discloses and the technological thought, must be contained by claim of the present utility model.
Claims (10)
1. one kind is used for the ray detecting apparatus that nuclear reactor pressure container is taken over weld seam detection, it is characterized in that it comprises:
Assembly is responsible in sealing, and described sealing is responsible for assembly and is comprised a hollow sleeve, is provided with stem pipe in the described hollow sleeve;
Air bag component, described air bag component is positioned at the front end of described hollow sleeve, and described air bag component comprises an air bag, described air bag is fixedlyed connected with described hollow sleeve, the stem pipe stretches in the described air bag in described, and described interior stem pipe cooperates with described air sac sealing, and described air bag is provided with snorkel;
The head support assembly, described head support assembly is positioned at described air bag component rear, described head support assembly comprises a head support holder and several head support connecting rods, described head support holder is fixedlyed connected with described hollow sleeve, the medial extremity of described head support connecting rod and described head support holder are hinged, described several head support connecting rods also are connected with first driving mechanism, and described first driving mechanism drives described head support connecting rod and outwards opens;
The afterbody supporting component, described afterbody supporting component is positioned at described head support assembly rear, described afterbody supporting component comprises an afterbody support fixation seat and several afterbody support link, described afterbody support fixation seat is fixedlyed connected with described hollow sleeve, the medial extremity of described afterbody support link and described afterbody support fixation seat are hinged, described several afterbody support link also are connected with second driving mechanism, and described second driving mechanism drives described afterbody support link and outwards opens;
The locating ring assembly, described locating ring assembly is positioned at described afterbody supporting component rear, described locating ring assembly comprises splined shaft, spline housing, locating ring, described hub splines is on described hollow sleeve, described spline housing slidably is enclosed within on the described splined shaft, and the both sides of described spline housing are provided with spacing ring, and described spline housing is connected with described locating ring, described spline housing is connected with the 3rd driving mechanism, and described the 3rd driving mechanism drives described spline housing and slides along described splined shaft.
2. the ray detecting apparatus of taking over weld seam detection for nuclear reactor pressure container according to claim 1, it is characterized in that: described air bag component also comprises an outside flange, a front end inner flange and a rear end inner flange, described outside flange is positioned at described air bag outside, described outside flange is connected with described hollow sleeve, described front end inner flange, rear end inner flange are positioned at described air bag inside, described rear end inner flange is connected with described outside flange, and described interior stem pipe is resisted against on the described front end inner flange.
3. according to claim 2ly take over the ray detecting apparatus of weld seam detection for nuclear reactor pressure container, it is characterized in that: the endoporus of stem pipe is a blind hole in described, the position consistency of described blind hole bottom and described air bag axis centre line.
4. the ray detecting apparatus of taking over weld seam detection for nuclear reactor pressure container according to claim 1, it is characterized in that: described first driving mechanism comprises the head cylinder block, described head cylinder block is fixedlyed connected with described hollow sleeve, described head cylinder block is provided with the head support cylinder, the piston rod of described head support cylinder is connected with the head support slide block, described head support slide block is provided with several head gas cylinder rods, described head gas cylinder rod is consistent with described head support connecting rod quantity and the position is corresponding one by one, one end of described head gas cylinder rod and described head support slide block are hinged, the other end of described head gas cylinder rod and corresponding head support rod hinge connection.
5. the ray detecting apparatus of taking over weld seam detection for nuclear reactor pressure container according to claim 4, it is characterized in that: described head cylinder block is provided with the head cylinder guide rod consistent with the flexible direction of head support cylinder, described head support slide block is provided with head cylinder guide pin bushing, and described head cylinder guide pin bushing is enclosed within on the described head cylinder guide rod.
6. according to claim 4ly take over the ray detecting apparatus of weld seam detection for nuclear reactor pressure container, it is characterized in that: the outboard end of described head support connecting rod is provided with the connecting rod roller.
7. the ray detecting apparatus of taking over weld seam detection for nuclear reactor pressure container according to claim 1, it is characterized in that: described second driving mechanism comprises the afterbody cylinder block, described afterbody cylinder block is fixedlyed connected with described hollow sleeve, described afterbody cylinder block is provided with afterbody and supports cylinder, the piston rod that described afterbody supports cylinder is connected with the afterbody support slipper, described afterbody support slipper is provided with several afterbody air cylinder connecting rods, described afterbody air cylinder connecting rod is consistent with described afterbody support link quantity and the position is corresponding one by one, one end of described afterbody air cylinder connecting rod and described afterbody support slipper are hinged, and the other end of described afterbody air cylinder connecting rod is hinged with corresponding afterbody support link.
8. the ray detecting apparatus of taking over weld seam detection for nuclear reactor pressure container according to claim 7, it is characterized in that: described afterbody cylinder block is provided with afterbody and supports the consistent afterbody cylinder guide rod of the flexible direction of cylinder, described afterbody support slipper is provided with afterbody cylinder guide pin bushing, and described afterbody cylinder guide pin bushing is enclosed within on the described afterbody cylinder guide rod.
9. according to claim 7ly take over the ray detecting apparatus of weld seam detection for nuclear reactor pressure container, it is characterized in that: the outboard end of described afterbody support link is provided with support claw.
10. the ray detecting apparatus of taking over weld seam detection for nuclear reactor pressure container according to claim 1, it is characterized in that: described the 3rd driving mechanism comprises a locating ring cylinder block, described locating ring cylinder block is fixedlyed connected with described hollow sleeve, described locating ring cylinder block is provided with the locating ring cylinder, and the piston rod of described locating ring cylinder is connected with described spline housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717170 CN203037593U (en) | 2012-12-21 | 2012-12-21 | Radiographic inspection device for detecting weld joints of connecting tubes of pressure vessels of nuclear reactors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717170 CN203037593U (en) | 2012-12-21 | 2012-12-21 | Radiographic inspection device for detecting weld joints of connecting tubes of pressure vessels of nuclear reactors |
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| Publication Number | Publication Date |
|---|---|
| CN203037593U true CN203037593U (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220717170 Withdrawn - After Issue CN203037593U (en) | 2012-12-21 | 2012-12-21 | Radiographic inspection device for detecting weld joints of connecting tubes of pressure vessels of nuclear reactors |
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| CN (1) | CN203037593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884724A (en) * | 2012-12-21 | 2014-06-25 | 国核电站运行服务技术有限公司 | Ray detection apparatus for nuclear reactor pressure vessel connection pipe welding seam detection |
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2012
- 2012-12-21 CN CN 201220717170 patent/CN203037593U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884724A (en) * | 2012-12-21 | 2014-06-25 | 国核电站运行服务技术有限公司 | Ray detection apparatus for nuclear reactor pressure vessel connection pipe welding seam detection |
| CN103884724B (en) * | 2012-12-21 | 2016-03-30 | 国核电站运行服务技术有限公司 | For the ray detecting apparatus that nuclear reactor pressure container nozzle weld detects |
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Granted publication date: 20130703 Effective date of abandoning: 20160330 |
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