CN204045221U - There is the nuclear power evaporator heat-transfer pipe endoporus failure detector of thickness measuring function - Google Patents
There is the nuclear power evaporator heat-transfer pipe endoporus failure detector of thickness measuring function Download PDFInfo
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- CN204045221U CN204045221U CN201420239121.7U CN201420239121U CN204045221U CN 204045221 U CN204045221 U CN 204045221U CN 201420239121 U CN201420239121 U CN 201420239121U CN 204045221 U CN204045221 U CN 204045221U
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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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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
A kind of nuclear power evaporator heat-transfer pipe endoporus failure detector with thickness measuring function, pedestal is cylindrical sides has the first concave station face and the second concave station face, two parallel concave station faces offer five through holes, is respectively two through holes, one, two through holes two and a through hole three; Wherein the axes intersect of two through holes one is in the first side, concave station face, and the axis of two through holes one all with pedestal axes intersect, the plane at two through hole one axis places is vertical with the first concave station face; The axis of two through holes two is positioned at the both sides of pedestal axis, and the axis of two through holes two is in same plane, and the axis place plane of two through holes two is vertical with the first concave station face; Axis and through hole one axis of described through hole three are positioned at same plane, and through hole three axes normal is in pedestal axis.The utility model axis, circumference and thickness can both detect simultaneously, have stopped to occur omission, the undetectable problem of slight crack, have improve accuracy rate and the work efficiency of flaw detection, make flaw detection more reliable.
Description
Technical field
The utility model relates to a kind of nuclear power evaporator heat-transfer pipe endoporus failure detector with thickness measuring function.
Background technology
Nuclear power is as a kind of energy of efficient, clean and sustainable development in recent years, is again subject to great attention and the extensive concern of people.Environmentally present situation and sustainable development need, and nuclear energy has become current China and ensured one of important substitute energy of the energy safety of supply, adjustment electric structure most realistic meaning, is the important component part that China's modern energy industry is built.
Steam generator is the key equipment of the hinge of pressurized-water reactor nuclear power plant one, secondary circuit, primary Ioops system, and Main Function produces high-quality dry steam by the heat exchange effect of tube bank, drives Turbo-generator Set to generate electricity by main steam line.Go agent to flow through reactor core with radioactivity because primary Ioops is cold, therefore core vapour generator is also a part for primary Ioops pressure boundary, leaks for preventing radiomaterial.According to external report, about have 1/4th in the unplanned shutdown number of times of PWR nuclear power plant because relevant steam generator problem causes, therefore it is very important to the safe operation of nuclear power plant.Nuclear power evaporator heat-transfer pipe all selects U-tube, with inverted U-shaped formula dense arrangement, it plays dual parts isolation and heat transfer, namely in inside surface circulation is the primary Ioops working-medium water that the radioactive heat of band is higher, in outside surface circulation is extract the secondary circuit working-medium water that to be processedly must be used for producing steam from natural seawater or river warp, make it become steam to secondary circuit water the thermal energy conduction of primary Ioops water by it, its reliability directly has influence on security and the economy of nuclear power plant.Therefore heat-transfer pipe carrying out flaw detection is seemed particularly important, but heat-transfer pipe diameter of bore is less only has 12mm, therefore more difficult to its carrying out flaw detection, if occur omit, slight crack detection less than, then can produce major accident in nuclear power evaporator use procedure, and the uniformity requirements of heat-transfer pipe to thickness is higher, general needs carry out separately the detection of thickness to heat-transfer pipe, waste the plenty of time, have impact on work efficiency.
Utility model content
The technical problems to be solved in the utility model is: the deficiency that simultaneously can not detect thickness when overcoming heat-transfer pipe flaw detection in prior art, provides a kind of nuclear power evaporator heat-transfer pipe endoporus failure detector with thickness measuring function.
The utility model is specific as follows for solving the problems of the technologies described above adopted technical scheme: a kind of nuclear power evaporator heat-transfer pipe endoporus failure detector with thickness measuring function, comprises pedestal and is arranged on the probe on pedestal, described probe comprises two flaw detection point focusing probe, two line focus probes and a thickness measuring point focusing probe, described pedestal is the right cylinder that a diameter is less than 12mm, wherein cylindrical sides has the first concave station face and the second concave station face, the first described concave station face is parallel with the second concave station face, formation two ends are right cylinder, centre has the structure in two parallel concave station faces, described two parallel concave station faces offer five through holes, be respectively two for installing the through hole one of described flaw detection point focusing probe, two for install described line focus probe through hole two and one for installing the through hole three of described thickness measuring point focusing probe, described probe transmitting terminal is positioned on the second concave station face,
The axes intersect of two wherein said through holes one in the first side, concave station face, and the axis of two through holes one all with pedestal axes intersect, the plane at two through hole one axis places is vertical with the first concave station face;
The axis of two described through holes two is positioned at the both sides of pedestal axis, and the axis of two through holes two is in same plane, and the axis place plane of two through holes two is vertical with the first concave station face;
Axis and through hole one axis of described through hole three are positioned at same plane, and through hole three axes normal is in pedestal axis.
The utility model is positioned at heat-transfer pipe inside when having the nuclear power evaporator heat-transfer pipe endoporus failure detector flaw detection of thickness measuring function, thickness measuring point focusing probe is utilized to detect the thickness of heat-transfer pipe, utilize the flaw detection point focusing probe that two relative tilts are arranged, its beam focal is in close to pipe outer wall place, detect heat transfer tube wall circumferential defect, this avoid and that can't detect problem parallel with slight crack due to wave beam, namely the slight crack that flaw detection point focusing probe can not detect heat-transfer pipe tube wall inner circumferential is avoided, and the line focus probe of two misalignment pedestal axis is set, to make wave beam and axial slight crack at an angle thus to detect heat-transfer pipe axial flaw, such tube wall axially, circumference and thickness can both detect simultaneously, stop to occur omitting, the undetectable problem of slight crack, improve accuracy rate and the work efficiency of flaw detection, make flaw detection more reliable.
Further, for enabling pedestal rotate smoothly in heat-transfer pipe and move ahead, described pedestal one end is connected with the tractor that traction pedestal rotates and moves ahead in heat-transfer pipe.
As preferably, described pedestal two terminal circle column diameter is 11.5mm, and wherein the first concave station face cup depth is 2mm, and the second concave station face cup depth is 4.5mm.Flaw detection point focusing probe and line focus are popped one's head in and heat-transfer pipe non-direct contact, have certain thickness moisture film between probe and heat-transfer pipe inwall, effectively can control water film thickness through controlling table top cup depth, improve probe flaw detection stability, accuracy.
Further, axis and the pedestal axis angle α of two described through holes one are 70 °, and the slight crack of flaw detection point focusing probe and heat-transfer pipe tube wall inner circumferential is had a certain degree, and make flaw detection more accurate.
The beneficial effects of the utility model are, the utility model is positioned at heat-transfer pipe inside when having the nuclear power evaporator heat-transfer pipe endoporus failure detector flaw detection of thickness measuring function, thickness measuring point focusing probe is utilized to detect the thickness of heat-transfer pipe, the flaw detection point focusing probe utilizing two relative tilts to arrange detects heat transfer tube wall circumferential defect, this avoid and that can't detect problem parallel with slight crack due to wave beam, namely the slight crack that flaw detection point focusing probe can not detect heat-transfer pipe tube wall inner circumferential is avoided, and the line focus probe arranging two misalignment pedestal axis detects heat-transfer pipe axial flaw, such tube wall axially, circumference and thickness can both detect simultaneously, stop to occur omitting, the undetectable problem of slight crack, improve accuracy rate and the work efficiency of flaw detection, make flaw detection more reliable.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the utility model nuclear power evaporator heat-transfer pipe endoporus failure detector front view;
Fig. 2 is the utility model nuclear power evaporator heat-transfer pipe endoporus failure detector vertical view;
Fig. 3 is the utility model failure detector schematic diagram in nuclear power evaporator heat-transfer pipe;
In figure: 1. pedestal, 2. through hole one, 3. through hole two, 4. through hole three, 5. the first concave station face, 6. the second concave station face, point focusing probe of 7. detecting a flaw, 8. line focus probe, 9. thickness measuring point focusing probe, 10. heat-transfer pipe, 11. water.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
Embodiment 1
As illustrated in fig. 1 and 2, a kind of nuclear power evaporator heat-transfer pipe endoporus failure detector with thickness measuring function, the probe comprising pedestal 1 and be arranged on pedestal 1, described probe comprises two flaw detection point focusing probe, 7, two line focus probes 8 and a thickness measuring point focusing probe 9, described pedestal 1 is the right cylinder that a diameter is less than 12mm, wherein cylindrical sides has the first concave station face 5 and the second concave station face 6, the first described concave station face 5 is parallel with the second concave station face 6, formation two ends are right cylinder, centre has the structure in two parallel concave station faces, described two parallel concave station faces offer five through holes, be respectively two for installing the through hole 1 of described flaw detection point focusing probe 7, two for install described line focus probe 8 through hole 23 and one for installing the through hole three of described thickness measuring point focusing probe 9, described probe transmitting terminal is positioned on the second concave station face 6,
The axes intersect of two wherein said through holes 1 in the first side, concave station face 5, and the axis of two through holes 1 all with pedestal 1 axes intersect, the plane at two through hole 1 axis places is vertical with the first concave station face 5;
The axis of two described through holes 23 is positioned at the both sides of pedestal 1 axis, and the axis of two through holes 23 is in same plane, and the axis place plane of two through holes 23 is vertical with the first concave station face 5;
Axis and through hole 1 axis of described through hole 34 are positioned at same plane, and through hole 34 axes normal is in pedestal 1 axis.
As shown in Figure 3, it is inner that the utility model is positioned at heat-transfer pipe 10 when having the nuclear power evaporator heat-transfer pipe endoporus failure detector flaw detection of thickness measuring function, thickness measuring point focusing probe 9 is utilized to detect heat-transfer pipe 10 thickness, utilize the flaw detection point focusing probe 6 of two relative tilts settings to detect heat-transfer pipe 10 wall circumferential defect, flaw detection point focusing probe velocity of wave focuses on close to heat-transfer pipe 10 outer wall place, and with circumferential slight crack at an angle, this avoid and that can't detect problem parallel with slight crack due to wave beam, namely the slight crack that flaw detection point focusing probe 6 can not detect heat-transfer pipe 10 tube wall inner circumferential is avoided, and the line focus probe 7 of two misalignment pedestal 1 axis is set, to make wave beam and axial slight crack at an angle thus to detect heat-transfer pipe 10 axial flaw, such tube wall axially, circumference and thickness can both detect simultaneously, stop to occur omitting, the undetectable problem of slight crack, improve accuracy rate and the work efficiency of flaw detection, make flaw detection more reliable.
Further, for enabling pedestal rotate smoothly in heat-transfer pipe and move ahead, described pedestal 1 one end is connected with the tractor that traction pedestal 1 rotates and moves ahead in heat-transfer pipe 10.
Once enter, described pedestal 1 two terminal circle column diameter is 11.5mm, and wherein the first concave station face 5 cup depth d is 2mm, and the second concave station face 6 cup depth d1 is 4.5mm.Flaw detection point focusing probe 7 and line focus pop one's head ins 8 and thickness measuring point focusing probe 9 and heat-transfer pipe 10 non-direct contact, between probe and heat-transfer pipe 10 inwall, there is certain thickness water 11 film, effectively can control water 11 film thickness through controlling table top cup depth, improving probe flaw detection stability, accuracy
Further, axis and the pedestal 1 axis angle α of two described through holes 1 are 70 °, flaw detection point focusing probe 7 is had a certain degree with the slight crack of heat-transfer pipe 10 tube wall inner circumferential, makes flaw detection more accurate.
Claims (4)
1. there is a nuclear power evaporator heat-transfer pipe endoporus failure detector for thickness measuring function, it is characterized in that: the probe comprising pedestal (1) and be arranged on pedestal (1), described probe comprises two flaw detections point focusing probe (7), two line focus probes (8) and thickness measuring point focusing probe (9), described pedestal (1) is the right cylinder that a diameter is less than 12mm, wherein cylindrical sides has the first concave station face (5) and the second concave station face (6), the first described concave station face (5) is parallel with the second concave station face (6), formation two ends are right cylinder, centre has the structure in two parallel concave station faces, described two parallel concave station faces offer five through holes, be respectively two for installing the through hole one (2) of described flaw detection point focusing probe (7), two for installing the described line focus probe through hole two (3) of (8) and one for installing the through hole three (4) of described thickness measuring point focusing probe (9), described probe transmitting terminal is positioned on the second concave station face (6),
The axes intersect of wherein said two through holes one (2) is in the first concave station face (5) side, and the axis of two through holes one (2) all with pedestal (1) axes intersect, the plane at two through hole one (2) axis places is vertical with the first concave station face (5);
The axis of described two through holes two (3) is positioned at the both sides of pedestal (1) axis, and the axis of two through holes two (3) is in same plane, the axis place plane of two through holes two (3) is vertical with the first concave station face (5);
Axis and through hole one (2) axis of described through hole three (4) are positioned at same plane, and through hole three (4) axes normal is in pedestal (1) axis.
2. the nuclear power evaporator heat-transfer pipe endoporus failure detector with thickness measuring function according to claim 1, is characterized in that: described pedestal (1) one end is connected with the tractor that traction pedestal (1) rotates and moves ahead in heat-transfer pipe.
3. the nuclear power evaporator heat-transfer pipe endoporus failure detector with thickness measuring function according to claim 1, it is characterized in that: described pedestal (1) two terminal circle column diameter is 11.5mm, wherein the first concave station face (5) cup depth is 2mm, and the second concave station face (6) cup depth is 4.5mm.
4. the nuclear power evaporator heat-transfer pipe endoporus failure detector with thickness measuring function according to claim 1, is characterized in that: axis and pedestal (1) axis angle of described two through holes one (2) are all 70 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239121.7U CN204045221U (en) | 2014-05-09 | 2014-05-09 | There is the nuclear power evaporator heat-transfer pipe endoporus failure detector of thickness measuring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239121.7U CN204045221U (en) | 2014-05-09 | 2014-05-09 | There is the nuclear power evaporator heat-transfer pipe endoporus failure detector of thickness measuring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204045221U true CN204045221U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420239121.7U Withdrawn - After Issue CN204045221U (en) | 2014-05-09 | 2014-05-09 | There is the nuclear power evaporator heat-transfer pipe endoporus failure detector of thickness measuring function |
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| Country | Link |
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| CN (1) | CN204045221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943156A (en) * | 2014-05-09 | 2014-07-23 | 常州市常超电子研究所有限公司 | Flaw detection device with thickness measuring function of inner hole of heat conduction tube of nuclear power evaporator |
-
2014
- 2014-05-09 CN CN201420239121.7U patent/CN204045221U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943156A (en) * | 2014-05-09 | 2014-07-23 | 常州市常超电子研究所有限公司 | Flaw detection device with thickness measuring function of inner hole of heat conduction tube of nuclear power evaporator |
| CN103943156B (en) * | 2014-05-09 | 2017-01-04 | 常州市常超电子研究所有限公司 | There is the nuclear power evaporator heat-transfer pipe endoporus failure detector of thickness measuring function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141224 Effective date of abandoning: 20170104 |