CN103761998A - Reactor pressure vessel nozzle detection probe frame - Google Patents
Reactor pressure vessel nozzle detection probe frame Download PDFInfo
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- CN103761998A CN103761998A CN201410025560.2A CN201410025560A CN103761998A CN 103761998 A CN103761998 A CN 103761998A CN 201410025560 A CN201410025560 A CN 201410025560A CN 103761998 A CN103761998 A CN 103761998A
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- support body
- body assembly
- seat
- sonde
- longitudinal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention relates to a reactor pressure vessel nozzle detection probe frame, comprises a base, a longitudinal frame assembly and a transverse frame assembly, wherein the longitudinal frame assembly is used for detecting a weld joint at the connecting part of the outer end of a nozzle and a safe end and a weld joint at the connecting part of the safe end and a main pipeline; the transverse frame assembly is used for detecting the connecting weld joint of an inner wall overlaying layer of the nozzle and a barrel body and the connecting weld joint of the nozzle and the barrel body; the longitudinal frame assembly and the transverse frame assembly are independent from each other and arranged on the base. The longitudinal frame assembly and the transverse frame assembly are arranged on the base so that the detection on nozzles of a water inlet pipe and a water outlet pipe can be finished when the probe frame enters the water once; when the transverse frame assembly is used for detecting the connecting weld joint of the inner wall overlaying layer of the nozzle and the barrel body and the connecting weld joint of the nozzle and the barrel body, the longitudinal frame assembly is contracted, when the longitudinal frame assembly is used for detecting the weld joint at the connecting part of the outer end of the nozzle and the safe end and the weld joint at the connecting part of the safe end and the main pipeline, the transverse frame assembly is contracted, so that the probe can be effectively from invalid abrading, and the service life of the probe is prolonged.
Description
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Technical field
The present invention relates to nuclear power inservice inspection field, particularly a kind of reactor pressure vessel nozzle inspection probe holder.
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Background technology
Nuclear reactor pressure container is one of of paramount importance parts of nuclear power station, is used for fixing, supports and contain reactor core and all in-pile components, is unique non-exchange large component in the whole phase in longevity of nuclear power plant.The quality of nuclear reactor pressure container is to guarantee that Nuclear Power System is normal, the key of safe operation.Nuclear reactor pressure container shown in Fig. 5, its main body is a cylinder 101, cylinder 101 tops are connected with semisphere upper cover (not shown), flange 102 by bolt assembly, cylinder 101 bottoms are welded with semisphere low head 103, on cylinder cylindrical shell, spaced radial is welded with multiple water inlet ozzles 104 and water outlet ozzle 105, on water inlet ozzle 104 and water outlet ozzle 105, be welded with respectively a safe end 106, safe end 106 welds mutually with main pipeline 107 again.For the quality of definite kernel reactor pressure vessel, in the inspection specification and outline of nuclear power plant and nuclear power unit, each weld seam on pressure vessel and other position have been proposed to the Compulsory Feature of Non-Destructive Testing, and specify before putting into operation and behind operation certain hour interval, pressure vessel is implemented to labour respectively before and inservice inspection.Before labour and the result of inservice inspection provide extremely important foundation for the state of analyzing pressure vessel.
Weld seam detection to the each ozzle of nuclear reactor pressure container place comprises: weld seam detection (being designated 1002 positions in Fig. 5), ozzle and the cylindrical shell attachment weld of weld seam detection (as being designated 1001 positions in Fig. 5), safe end and the main pipeline junction of ozzle outer end and safe end junction detects (in figure, being designated 1003 position), tapered inwall and the cylindrical circular inwall of rising pipe 105 of water inlet pipe 104.Wherein main pipeline and safe end junction are metal solder of the same race; And ozzle outer end and safe end junction are different-metal material welding.Because pore, rosin joint, incomplete fusion or the defect such as lack of penetration easily occur in the welding of foreign material, these defects are the hidden danger that security incident occurs, and therefore need emphasis inspection.
Due to the application circumstances of pressure vessel, slickness to pressure vessel nozzle, safe end and main pipeline inwall is had relatively high expectations, therefore, supersonic inspection device is the process stretching in ozzle process or extract out from ozzle, should avoid scratching inwall, meanwhile, while carrying out scanning in ozzle, also should guarantee the coupling of ultrasonic probe and inwall.The ultrasonic probe limited amount that existing probe holder can carry, cannot once descend water just to complete the inspection to water inlet pipe and rising pipe, and mostly be single linear drives, it can not make the ultrasonic probe that checks each weld seam and inwall move respectively, cause part probe to do invalid wearing and tearing, shortened the serviceable life of probe; Or existing probe holder structure does not arrange range finding probe, cannot determine whether accurately centering of probe holder and ozzle, the safety and reliability that impact is used.
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Summary of the invention
The object of this invention is to provide a kind of nozzle inspection probe holder that can once descend water just to complete reactor pressure vessel water inlet pipe and rising pipe inservice inspection.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of reactor pressure vessel nozzle inspection probe holder, it comprises pedestal, for detection of longitudinal support body assembly of the weld seam of ozzle outer end and safe end junction and the weld seam of safe end and main pipeline junction, the horizontal support body assembly of ozzle inner wall overlaying layer and ozzle and cylindrical shell attachment weld, described longitudinal support body assembly and laterally support body assembly are separate and be all installed on described pedestal, described pedestal comprises four sides and two end faces that head and the tail are connected successively, described longitudinal support body assembly and laterally support body assembly have respectively two groups, longitudinal support body assembly described in two is arranged on respectively on two relative sides, horizontal support body assembly described in two is arranged on respectively on two other relative side, each described longitudinal support body assembly comprises the bracket being arranged on described pedestal, be arranged on the longitudinal cylinder on described bracket, the vertical sonde seat being connected with the piston rod end of described longitudinal cylinder, multiple vertical sondes that are arranged on described vertical sonde seat, it is opposing that longitudinal cylinder described in two stretches out direction, each described horizontal support body assembly comprises the lateral cylinder being located on two other relative side, the base being connected with the piston rod end of described lateral cylinder, with the described mutually hinged transversal sonde seat of base and multiple transversal sonde being arranged on described transversal sonde seat, lateral cylinder described in two to stretch out direction opposing.
Optimize, each described longitudinal frame component also comprises that one end is fixed on described bracket and the other end is arranged in the longitudinally guiding bar on described vertical sonde seat, each described longitudinal frame component comprises two longitudinally guiding bars, the symmetrical both sides that are arranged on described longitudinal cylinder of longitudinally guiding bar described in two.
Optimize, described transverse strands assembly also comprises the horizontal guide rod that is located in described pedestal and is parallel to the piston rod of lateral cylinder, and described base is slidably connected mutually with described horizontal guide rod.
Optimize, it also comprises the hog frame on two end faces that are fixed on described pedestal, described hog frame comprises the left hog frame and the right hog frame that are I shape, between left hog frame and right hog frame, be connected with stiffener, described right hog frame is connected with the mechanical arm that control probe holder moves, and on described left probe holder, camera is installed.
Optimize, range finding probe is installed on the side of the pedestal at the bracket place described in one of them.
Optimize, on each described transversal sonde seat and each described vertical sonde seat, be separately installed with two Universal caster assemblies, described Universal caster assembly comprises with transversal sonde seat or vertical sonde seat and is fixedly connected at support column, is arranged on the ball on support column top.
Beneficial effect of the present invention is: the present invention is by longitudinal support body assembly of the weld seam of the weld seam for detection of reactor pressure vessel rising pipe and water inlet pipe ozzle outer end and safe end junction and safe end and main pipeline junction, the horizontal support body assembly of ozzle inner wall overlaying layer and ozzle and cylindrical shell attachment weld is arranged on a pedestal, make probe holder once descend water just can complete the detection of water inlet pipe and rising pipe, and when probe holder enters ozzle and from ozzle out time, laterally support body assembly and longitudinal support body assembly are all in contraction state, when horizontal support body component detection ozzle inner wall overlaying layer and ozzle and cylindrical shell attachment weld, longitudinally support body assembly is in shrinking, when the weld seam of longitudinal support body component detection ozzle outer end and safe end junction and the weld seam of safe end and main pipeline junction, laterally support body assembly is in contraction state, can effectively prevent probe invalidate wearing and tearing and scratch ozzle inwall.
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Accompanying drawing explanation
Accompanying drawing 1 is three-dimensional view of the present invention;
Accompanying drawing 2 is front view of the present invention;
Accompanying drawing 3 is left view of the present invention;
Accompanying drawing 4 is the cut-open view B-B of accompanying drawing 2;
The cut-open view that accompanying drawing 5 is pressure vessel;
In accompanying drawing: 1, pedestal; 5, camera; 6, range finding probe; 21, bracket; 22, longitudinal cylinder; 23, vertical sonde seat; 25, longitudinally guiding bar; 31, lateral cylinder; 32, base; 33, transversal sonde seat; 35, horizontal guide rod; 36, limited slip block; 38, guiding stops piece; 41, left hog frame; 42, right hog frame; 43, stiffener; 71, support column; 72, ball; 101, cylinder; 102, flange; 103, low head; 104, water inlet pipe; 105, rising pipe; 106, safe end; 107, main pipeline.
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Embodiment
Below in conjunction with embodiment shown in the drawings, the present invention is described in detail below:
As shown in Figure 1, this reactor pressure vessel nozzle inspection probe holder comprises pedestal 1, longitudinal support body assembly, horizontal support body assembly, hog frame, camera 5, range finding probe 6 and Universal caster assembly.
As shown in Figure 1,3, in the present embodiment, longitudinally support body assembly has two groups, two longitudinal support body assemblies are arranged on respectively on two relative sides, each longitudinal support body assembly comprises the bracket 21 that is arranged on pedestal 1, be arranged on longitudinal cylinder 22 on bracket 21, with vertical sonde seat 23, multiple vertical sonde and longitudinally guiding bar 25 being arranged on vertical sonde seat 23 that longitudinally the piston rod end of cylinder 22 is connected.In the present embodiment, six probes are installed on each vertical sonde seat 23, six probes are divided on two groups of two sidewalls that are arranged on probe socket 23, on above-mentioned two sides, offer square groove, bracket 21 is arranged in groove, the both sides of each longitudinal cylinder 22 are separately installed with a longitudinally guiding bar 25, and one end of longitudinally guiding bar 25 is fixed on bracket 21 and the other end is arranged on vertical sonde seat 23, and it is opposing that two longitudinal cylinders 22 stretch out direction.
As Fig. 1, shown in 4, two horizontal support body assemblies are arranged on respectively on two other relative side, on these two relative sides, offer two cylinder mounting holes and two guide pole mounting holes, each horizontal support body assembly comprises lateral cylinder 31, the base 32 being connected with the piston rod end of lateral cylinder 31, with the mutually hinged transversal sonde seat 33 of base 32, multiple transversal sonde and horizontal guide rods 35 that are arranged on transversal sonde seat 33, in the present embodiment, 8 probes are installed on each transversal sonde seat 33, 8 probes are divided into two groups of both sides that are arranged on transversal sonde seat 33, two lateral cylinders 31 are arranged in two cylinder mounting holes and its piston rod to stretch out direction opposing, laterally guide rod 35 has two, be positioned at the both sides of two lateral cylinders 31 and parallel with the piston rod of lateral cylinder 31, on every horizontal guide rod 35, be arranged with two limited slip blocks 36, limited slip block 36 is fixed in guide pole mounting hole, laterally the end of guide rod 35 is also provided with and prevents that the guiding that base 32 skids off from stopping piece 38.(in figure, vertical sonde and transversal sonde do not show)
Universal caster assembly comprises with transversal sonde seat 33 or vertical sonde seat 23 and is fixedly connected at support column 71, is arranged on the ball 72 on support column 71 tops.
For improving the intensity of probe holder, it also comprises the hog frame on two end faces that are fixed on pedestal 1, as shown in Figure 2, hog frame comprises the left hog frame 41 and the right hog frame 42 that are I shape, between left hog frame 41 and right hog frame 42, be connected with stiffener 43, stiffener 43 has on four four angles that are connected to left hog frame 41 and right hog frame 42 and can not hinder the movement of vertical sonde or transversal sonde, right hog frame 42 is connected with the mechanical arm that control probe holder moves, and on left probe holder 41, camera 5 is installed.Range finding probe 6 is installed on the side of the pedestal 1 at one of them bracket 21 place.
When probe holder is sent into water inlet pipe 104 or rising pipe 105 by mechanical arm before, longitudinally support body assembly is in shrinking, two lateral cylinders 31 slightly shrink, and keep two transversal sonde seats 33 to be the splayed matching with water inlet pipe 104 conical inboard walls, by the position of range finding probe 6 continuous detection probe frame centers and tubular axis line, then adjust probe holder position to complete location, when delivering to behind precalculated position, lateral cylinder 31 is outer stretching out mutually, by the probe and the tube wall laminating that are arranged on probe holder, due to transversal sonde seat 33 and base 32 phase chain connections, and Universal caster assembly is installed on transversal sonde seat 33, when detecting the tapered inwall of water inlet pipe 104 or rising pipe 105 cylindrical circular inwall, can both guarantee the flexible contact of probe and scanning face, realize probe and constant the contacting of scanning surface pressure.Complete after the detection of water inlet pipe 104 or rising pipe 105 inwalls, lateral cylinder 31 is retracted, by mechanical arm, probe holder is delivered to again to ozzle and safe end attachment weld place (in Fig. 5, being designated 1001 position) of water inlet pipe or rising pipe, longitudinally cylinder 22 stretches out, the Universal caster assembly of installing on vertical sonde seat 23 helps the flexible contact of probe and scanning face, realizes probe and constant the contacting of scanning surface pressure.After completing detection, probe is regained and successively (in Fig. 5, being designated 1002 positions) detected in the commissure of safe end and main pipeline junction as stated above again.
To sum up, the present invention has following advantage:
1, the present invention, by the increase probe of finding range, has solved the problem of probe holder and the accurate centering of ozzle axis;
2, the present invention can be used for carrying the contact scanning of having popped one's head in;
3, nearly 28 of the carry-on probes of the present invention, even can be more, in existing invention, do not realize;
4, the probe holder the present invention relates to can be realized the flexible contact of probe and scanning face, realizes probe and constant the contacting of scanning surface pressure;
5, longitudinal support body assembly and laterally support body assembly is separate and be all installed on pedestal 1, when the weld seam of horizontal support body component detection ozzle and safe end attachment weld, safe end and main pipeline junction, longitudinally support body assembly is in shrinking, when longitudinal support body component detection ozzle inner wall overlaying layer, ozzle and cylindrical shell attachment weld, laterally support body assembly, in contraction state, can effectively prevent the invalid wearing and tearing of probe.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that spirit is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (6)
1. a reactor pressure vessel nozzle inspection probe holder, it is characterized in that: it comprises pedestal (1), for detection of longitudinal support body assembly of the weld seam of ozzle outer end and safe end junction and the weld seam of safe end and main pipeline junction, for detection of the horizontal support body assembly of ozzle inner wall overlaying layer and ozzle and cylindrical shell attachment weld, described longitudinal support body assembly and laterally support body assembly are separate and be all installed on described pedestal (1), described pedestal (1) comprises four sides and two end faces that head and the tail are connected successively, described longitudinal support body assembly and laterally support body assembly have respectively two groups, longitudinal support body assembly described in two is arranged on respectively on two relative sides, horizontal support body assembly described in two is arranged on respectively on two other relative side, each described longitudinal support body assembly comprises the bracket (21) being arranged on described pedestal (1), be arranged on the longitudinal cylinder (22) on described bracket (21), the vertical sonde seat (23) being connected with the piston rod end of described longitudinal cylinder (22), multiple vertical sondes that are arranged on described vertical sonde seat (23), it is opposing that longitudinal cylinder (22) described in two stretches out direction, each described horizontal support body assembly comprises the lateral cylinder (31) being located on two other relative side, the base (32) being connected with the piston rod end of described lateral cylinder (31), with the described mutually hinged transversal sonde seat of base (32) (33) and multiple transversal sonde being arranged on described transversal sonde seat (33), lateral cylinder (31) described in two to stretch out direction opposing.
2. reactor pressure vessel nozzle inspection probe holder according to claim 1, it is characterized in that: each described longitudinal frame component also comprises that one end is fixed on described bracket (21) above and the other end is arranged in the longitudinally guiding bar (25) on described vertical sonde seat (23), each described longitudinal frame component comprises two longitudinally guiding bars (25), the symmetrical both sides that are arranged on described longitudinal cylinder (22) of longitudinally guiding bar (25) described in two.
3. reactor pressure vessel nozzle inspection probe holder according to claim 1, it is characterized in that: described transverse strands assembly also comprises the horizontal guide rod (35) that is located in described pedestal (1) and is parallel to the piston rod of lateral cylinder (31), and described base (33) is slidably connected mutually with described horizontal guide rod (35).
4. reactor pressure vessel nozzle inspection probe holder according to claim 1, it is characterized in that: it also comprises the hog frame on two end faces that are fixed on described pedestal (1), described hog frame comprises the left hog frame (41) and the right hog frame (42) that are I shape, between left hog frame (41) and right hog frame (42), be connected with stiffener (43), described right hog frame (42) is connected with the mechanical arm that control probe holder moves, and on described left probe holder (41), camera (5) is installed.
5. reactor pressure vessel nozzle inspection probe holder according to claim 1, is characterized in that: range finding probe (6) is installed on the side of the pedestal (1) at bracket (21) place described in one of them.
6. reactor pressure vessel nozzle inspection probe holder according to claim 1, it is characterized in that: each described transversal sonde seat (33) and each described in vertical sonde seat (23) on be separately installed with two Universal caster assemblies, described Universal caster assembly comprises with transversal sonde seat (33) or vertical sonde seat (23) and is fixedly connected at support column (71), is arranged on the ball (72) on support column (71) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410025560.2A CN103761998B (en) | 2014-01-20 | 2014-01-20 | Reactor pressure vessel nozzle inspection probe holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410025560.2A CN103761998B (en) | 2014-01-20 | 2014-01-20 | Reactor pressure vessel nozzle inspection probe holder |
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| Publication Number | Publication Date |
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| CN103761998A true CN103761998A (en) | 2014-04-30 |
| CN103761998B CN103761998B (en) | 2016-04-06 |
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| CN201410025560.2A Active CN103761998B (en) | 2014-01-20 | 2014-01-20 | Reactor pressure vessel nozzle inspection probe holder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015180521A1 (en) * | 2014-05-29 | 2015-12-03 | 中广核检测技术有限公司 | Nondestructive detection robot for pressure vessel of nuclear reactor, and detection method therefor |
| CN113314241A (en) * | 2021-05-26 | 2021-08-27 | 中广核检测技术有限公司 | Inside inspection equipment of reactor pressure vessel main pipe mouth |
| CN115064289A (en) * | 2022-06-08 | 2022-09-16 | 上海核工程研究设计院有限公司 | Reactor pressure vessel installation simulation piece |
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2014
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015180521A1 (en) * | 2014-05-29 | 2015-12-03 | 中广核检测技术有限公司 | Nondestructive detection robot for pressure vessel of nuclear reactor, and detection method therefor |
| CN113314241A (en) * | 2021-05-26 | 2021-08-27 | 中广核检测技术有限公司 | Inside inspection equipment of reactor pressure vessel main pipe mouth |
| CN113314241B (en) * | 2021-05-26 | 2024-02-13 | 中广核检测技术有限公司 | Reactor pressure vessel main pipeline nozzle internal inspection equipment |
| CN115064289A (en) * | 2022-06-08 | 2022-09-16 | 上海核工程研究设计院有限公司 | Reactor pressure vessel installation simulation piece |
| CN115064289B (en) * | 2022-06-08 | 2024-05-10 | 上海核工程研究设计院股份有限公司 | Reactor pressure vessel installs simulation spare |
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| CN103761998B (en) | 2016-04-06 |
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