CN109974640B - Position adapting device for deformation detection probe frame of fuel assembly - Google Patents
Position adapting device for deformation detection probe frame of fuel assembly Download PDFInfo
- Publication number
- CN109974640B CN109974640B CN201711444155.4A CN201711444155A CN109974640B CN 109974640 B CN109974640 B CN 109974640B CN 201711444155 A CN201711444155 A CN 201711444155A CN 109974640 B CN109974640 B CN 109974640B
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- Prior art keywords
- sliding
- support body
- support
- spring
- fuel assembly
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- 239000000446 fuel Substances 0.000 title claims abstract description 22
- 239000000523 sample Substances 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000005096 rolling process Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000007689 inspection Methods 0.000 abstract description 3
- 238000011900 installation process Methods 0.000 abstract description 3
- 230000000877 morphologic effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/04—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring the deformation in a solid, e.g. by vibrating string
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention relates to the technical field of fuel assembly morphological deformation measurement, and particularly discloses a position adapting device of a fuel assembly deformation detection probe frame. The device comprises a sliding folding mechanism and a water driving mechanism, wherein the sliding folding mechanism comprises a sliding support body and a support body, the sliding support body and the support body are of a slender thin-wall structure, are connected through a plurality of sliding shaft mechanisms which are horizontally arranged, and ensure a moving gap between the sliding support body and the support body through a plurality of forward jacking mechanisms which are vertically arranged between the sliding support body and the support body; the water driving mechanism can drive the sliding folding mechanism to linearly move and self-lock at any position. The device can realize linear motion with total travel of 1660mm, manual intervention is not needed basically in the whole installation process, safety risk is greatly reduced, and the device can be folded up after inspection to ensure that the underwater component is exposed out of the water surface to the maximum extent, so that the device is prevented from being soaked in high-emissivity water for a long time.
Description
Technical Field
The invention belongs to the technical field of fuel assembly morphological deformation measurement, and particularly relates to a position adapting device of a fuel assembly deformation detection probe frame.
Background
The prior fuel assembly deformation detection device has the following defects: the maximum movement travel of the underwater component of the detection device is 300mm, and the whole equipment cannot directly cross the pool fence in the installation and lifting process due to the limitation of the height of a crane of a fuel plant, so that the whole installation process needs human intervention, and huge safety risks exist; because the whole length of the underwater component is too long, the underwater component cannot be completely exposed out of the water surface even in the state of low water level of a pool of a fuel plant, and the service life of the equipment is shortened due to long-term soaking in high-emissivity water; the underwater assembly is limited by the result, the forward and lateral movement gaps are too large, under the action of water flow disturbance, the probe is fixed on the sliding support body, but the sliding support body freely moves in a forward and lateral manner relative to the middle of the fixed support, so that the measurement accuracy is affected; the underwater component is directly hung on the hanger of the water component in a cantilever manner, and the sliding support body is supported on the side wall of the fuel channel only by virtue of supporting side legs, but the whole structure can shake integrally along with disturbance of water flow or the up-and-down movement process of the sliding support body, so that the measurement accuracy is not facilitated; when the water assembly pressing plate is assembled and mounted on the supporting plate, the upper end face of the fuel channel and the upper surface of the supporting plate are smooth, so that the mounting process is serious in shaking, no positioning reference exists, and the mounting time is greatly prolonged.
Disclosure of Invention
The invention aims to provide a fuel assembly deformation detection probe frame position adapting device which can solve the defects of the existing fuel assembly deformation measuring device.
The technical scheme of the invention is as follows: the device comprises a sliding folding mechanism and a water driving mechanism, wherein the sliding folding mechanism comprises a sliding support body and a support body, the sliding support body and the support body are of a slender thin-wall structure, are connected through a plurality of sliding shaft mechanisms which are horizontally arranged, and ensure a moving gap between the sliding support body and the support body through a plurality of forward jacking mechanisms which are vertically arranged between the sliding support body and the support body; the water driving mechanism can drive the sliding folding mechanism to linearly move and self-lock at any position.
The sliding folding mechanism also comprises a quick plug, and the sliding support body and the support body can be completely overlapped and fixed by utilizing the quick plug.
The sliding shaft mechanism comprises a T-shaped sliding pin, a rolling sliding sleeve and a nut, wherein the T-shaped sliding pin sleeved with the rolling sliding sleeve is arranged between a sliding support body and a support body, the outer circle surface of the rolling sliding sleeve is matched with a 1660mm long waist-shaped groove machined on the support body, and a forward jacking mechanism arranged in the vertical direction of the sliding support body and the support body is utilized to ensure that the gap of the whole movement mechanism is moderate and free from movement.
The positive tight mechanism that pushes up includes slide ball, spring positioning axle, spring positioning cover, supporting spring and sliding shaft support, and sliding shaft support passes the support body to fix spring positioning cover on the support body, the spring positioning axle that the cover has supporting spring installs between spring positioning cover and sliding shaft support, and utilizes supporting spring to provide tight force for spring positioning axle rectilinear movement, is equipped with the slide ball on spring positioning axle, the slide ball pushes up on the sliding support body through supporting spring's elasticity, provides support for sliding support body and support body.
The sliding shaft support is provided with a boss which is used as a positioning mechanism of the supporting spring, so that the positioning of the supporting spring is ensured.
The sliding support is characterized in that a lateral positioning mechanism is further arranged between the sliding support body and the horizontal direction of the support body, wherein the lateral positioning mechanism comprises a sliding ball fixing support and a sliding ball, the sliding ball fixing support is arranged on the sliding support body, the sliding ball arranged on the sliding ball fixing support is enabled to be in contact with the support body, and the contact between the sliding support body and the support body is rolling friction.
The water driving mechanism comprises a supporting plate, a worm turbine component and a hook, wherein the hook is directly welded on the supporting plate, and a tightening rod is arranged on the hook and can seal the hook to prevent an underwater component hung on the hook from rotating around a fulcrum and falling out of the hook; the support plate is provided with a worm turbine component which can drive the hoisting mechanism and has a self-locking function.
The invention has the remarkable effects that: according to the position adapting device for the deformation detection probe frame of the fuel assembly, the water driving mechanism adopts the worm turbine assembly with extremely high safety coefficient to drive the hoisting mechanism to roll up the steel wire rope connected to the underwater sliding support body, so that the linear motion of the total stroke 1660mm can be realized, the self-locking can be realized at any position, and the full range of the spare parts in a certain height can be ensured to be detected; when the sliding support body and the support body are completely folded and overlapped, the hoisting process can directly cross the pool fence, the whole installation process basically does not need human intervention, the safety risk is greatly reduced, the underwater assembly can be furthest ensured to be exposed out of the water after the inspection is completed by folding, and the equipment is prevented from being soaked in high-radioactivity water for a long time; the whole fastening mechanism is finally propped against the sliding support body through the sliding ball, so that support is provided between the sliding support body and the support body, the forward direction of the sliding support body is ensured not to be in series movement along with disturbance of water flow or other factors, and the ultrasonic signal is stable according to field inspection data; the contact form of the movable support body and the support body is changed from sliding friction to rolling friction, and the friction force is greatly reduced by adopting a contact ball positioning mode, so that the driving force is reduced, and the working strength of personnel is reduced to a certain extent.
Drawings
FIG. 1 is a schematic view of a sliding and folding mechanism in a fuel assembly deformation sensing probe holder position adapting device according to the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is an enlarged view of a portion of FIG. 1 at C;
FIG. 6 is a schematic diagram of an over-water drive mechanism in a fuel assembly deformation sensing probe holder position adapting device;
FIG. 7 is a front view of FIG. 6;
in the figure: 1. a support assembly; 2. a sliding support body; 3. a bracket body; 4. a plug is inserted quickly; 5. a T-shaped sliding pin; 6. rolling the sliding sleeve; 7. a nut; 8. a sliding ball fixing bracket; 9. a sliding ball; 10. a spring positioning shaft; 11. a spring positioning sleeve; 12. a support spring; 13. a sliding shaft support; 14. a clamping assembly; 15. A support plate; 16. a platen assembly; 17. a worm-turbine assembly; 18. a pushing rod is tightly pressed; 19. a hook.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific examples.
As shown in fig. 1 to 6, the position adapting device of the fuel assembly deformation detection probe frame comprises a sliding foldable mechanism and a water driving mechanism, wherein the sliding foldable mechanism comprises a sliding supportable assembly 1, a sliding support body 2, a support body 3 and a quick plug 4, wherein the sliding support body 2 and the support body 3 are of an elongated thin-wall structure, are connected through a plurality of sliding shaft mechanisms which are horizontally arranged, can realize relative movement of 1660mm stroke, and ensure a clearance between the sliding support body 2 and the support body 3 through a plurality of forward jacking mechanisms which are vertically arranged between the sliding support body 2 and the support body 3; when the sliding support body 2 moves to the highest point, the sliding support body 2 and the support body 3 are completely overlapped and fixed through the quick plug 4 on the support body 3; the sliding shaft mechanism comprises a T-shaped sliding pin 5, a rolling sliding sleeve 6 and a nut 7, wherein the T-shaped sliding pin 5 sleeved with the rolling sliding sleeve 6 is arranged between the sliding support body 2 and the support body 3, the outer circle surface of the rolling sliding sleeve 6 is matched with a 1660mm long waist-shaped groove machined on the support body 3, and the positive jacking mechanism arranged in the vertical direction of the sliding support body 2 and the support body 3 is utilized to ensure that the gap of the whole movement mechanism is moderate and free from movement; the positive tightening mechanism comprises a sliding ball 9, a spring positioning shaft 10, a spring positioning sleeve 11, a supporting spring 12 and a sliding shaft support 13, wherein the sliding shaft support 13 penetrates through the bracket body 3 and fixes the spring positioning sleeve 11 on the bracket body 3, the spring positioning shaft 10 sleeved with the supporting spring 12 is arranged between the spring positioning sleeve 11 and the sliding shaft support 13, and the supporting spring 12 is utilized to provide tightening force for the linear motion of the spring positioning shaft 10; wherein, a boss is processed on the sliding shaft support 13 and is used as a positioning mechanism of the support spring 12 to ensure the positioning of the support spring 12; the upper end of the spring positioning shaft 10 is provided with a sliding ball 9, the sliding ball 9 is tightly propped against the sliding support body 2 through the elasticity of the supporting spring 12, and the sliding support body 2 and the support body 3 are supported, so that the forward direction of the sliding support body is ensured not to be in series movement along with disturbance of water flow or other factors; a lateral positioning mechanism is further arranged between the sliding support body 2 and the horizontal direction of the support body 3, wherein the lateral positioning mechanism comprises a sliding ball fixing support 8 and a sliding ball 9, the sliding ball fixing support 8 is arranged on the sliding support body 2, and the sliding ball 9 arranged on the sliding ball fixing support 8 is contacted with the support body 3, so that the contact between the sliding support body 2 and the support body 3 is rolling friction;
the water driving mechanism comprises a supporting plate 15, a worm turbine assembly 17 and a hook 19, wherein the hook 19 is directly welded on the supporting plate 15, and a tightening rod 18 is arranged on the hook 19 to block the hook 19 and prevent an underwater assembly hung on the hook 19 from rotating around a fulcrum and falling out of the hook 19; a worm turbine assembly 17 which can drive a hoisting mechanism and has a self-locking function is arranged on the supporting plate 15; the pressing plate assembly 16 is mounted on the supporting plate 15, and the clamping assembly 14 is mounted at the end part of the pressing plate assembly 16; the water driving mechanism drives the winding mechanism to wind up the steel wire rope connected to the underwater sliding support body 2 through the worm turbine assembly 17, so that linear motion with total stroke of 1660mm can be realized, self-locking can be realized at any position, and full range detection of spare parts in a certain height is ensured.
Claims (5)
1. The utility model provides a fuel assembly deformation detection probe frame position adaptation device which characterized in that: the device comprises a sliding folding mechanism and a water driving mechanism, wherein the sliding folding mechanism comprises a sliding support body (2) and a support body (3), the sliding support body (2) and the support body (3) are of a slender thin-wall structure, are connected through a plurality of sliding shaft mechanisms which are horizontally arranged, and ensure a moving gap between the sliding support body (2) and the support body (3) through a plurality of positive jacking mechanisms which are vertically arranged between the sliding support body and the support body (3); the water driving mechanism can drive the sliding folding mechanism to linearly move and self-lock at any position; the water driving mechanism drives the hoisting mechanism to roll up the steel wire rope connected to the underwater sliding support body through the worm turbine assembly, so that the sliding folding mechanism can linearly move; the positive jacking mechanism comprises a sliding ball (9), a spring positioning shaft (10), a spring positioning sleeve (11), a supporting spring (12) and a sliding shaft support (13), wherein the sliding shaft support (13) penetrates through the support body (3) and fixes the spring positioning sleeve (11) on the support body (3), the spring positioning shaft (10) sleeved with the supporting spring (12) is arranged between the spring positioning sleeve (11) and the sliding shaft support (13) and provides jacking force for the linear motion of the spring positioning shaft (10) by utilizing the supporting spring (12), the sliding ball (9) is arranged at the upper end of the spring positioning shaft (10), and the sliding ball (9) is jacked on the sliding support body (2) through the elastic force of the supporting spring (12) to provide support for the sliding support body (2) and the support body (3); the sliding support is characterized in that a lateral positioning mechanism is further arranged between the sliding support body (2) and the horizontal direction of the support body (3), wherein the lateral positioning mechanism comprises a sliding ball fixing support (8) and a sliding ball (9), the sliding ball fixing support (8) is arranged on the sliding support body (2), the sliding ball (9) arranged on the sliding ball fixing support (8) is enabled to be in contact with the support body (3), and the contact between the sliding support body (2) and the support body (3) is rolling friction.
2. A fuel assembly deformation sensing probe carrier position adapting device according to claim 1, wherein: the sliding folding mechanism also comprises a quick plug (4), and the sliding support body (2) and the support body (3) can be completely overlapped and fixed by utilizing the quick plug (4).
3. A fuel assembly deformation sensing probe carrier position adapting device according to claim 1, wherein: the sliding shaft mechanism comprises a T-shaped sliding pin (5), a rolling sliding sleeve (6) and a nut (7), wherein the T-shaped sliding pin (5) sleeved with the rolling sliding sleeve (6) is arranged between a sliding support body (2) and a support body (3), the outer circle surface of the rolling sliding sleeve (6) is matched with a 1660mm long waist-shaped groove machined in the support body (3), and a forward jacking mechanism arranged on the vertical direction of the sliding support body (2) and the support body (3) is utilized to ensure that the gap of the whole movement mechanism is moderate without stringing.
4. A fuel assembly deformation sensing probe carrier position adapting device according to claim 1, wherein: the sliding shaft support (13) is provided with a boss which is used as a positioning mechanism of the support spring (12) to ensure the positioning of the support spring (12).
5. A fuel assembly deformation sensing probe carrier position adapting device according to claim 1, wherein: the water driving mechanism comprises a supporting plate (15), a worm turbine component (17) and a hook (19), wherein the hook (19) is directly welded on the supporting plate (15), and a tightening rod (18) is arranged on the hook (19) to block the hook (19) and prevent an underwater component hung on the hook (19) from rotating around a pivot and falling out of the hook (19); a worm turbine component (17) is arranged on the supporting plate (15), can drive the hoisting mechanism and has a self-locking function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711444155.4A CN109974640B (en) | 2017-12-27 | 2017-12-27 | Position adapting device for deformation detection probe frame of fuel assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711444155.4A CN109974640B (en) | 2017-12-27 | 2017-12-27 | Position adapting device for deformation detection probe frame of fuel assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109974640A CN109974640A (en) | 2019-07-05 |
| CN109974640B true CN109974640B (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711444155.4A Active CN109974640B (en) | 2017-12-27 | 2017-12-27 | Position adapting device for deformation detection probe frame of fuel assembly |
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| CN (1) | CN109974640B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106841676A (en) * | 2017-03-29 | 2017-06-13 | 天津大学 | A kind of laser-Doppler hydraulic turbine wake measurement device and measuring method |
| CN107219452A (en) * | 2017-07-12 | 2017-09-29 | 深圳市迈创力科技有限公司 | A kind of novel clamp of flying probe tester |
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2017
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| KR100812762B1 (en) * | 2007-01-22 | 2008-03-12 | 엠피에스 주식회사 | The stud-volt clearance device of a nuclear reactor and machining method using the same |
| CN202511727U (en) * | 2011-12-27 | 2012-10-31 | 中国一冶集团有限公司 | Motion detection apparatus |
| CN103293228A (en) * | 2013-03-04 | 2013-09-11 | 江苏省特种设备安全监督检验研究院镇江分院 | Adjustable weld seam flaw detection guided wave probe fixator |
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| CN109974640A (en) | 2019-07-05 |
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