CN109632841A - Voltage-stablizer electric heater casing RT detection device and detection method - Google Patents
Voltage-stablizer electric heater casing RT detection device and detection method Download PDFInfo
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- CN109632841A CN109632841A CN201811591949.8A CN201811591949A CN109632841A CN 109632841 A CN109632841 A CN 109632841A CN 201811591949 A CN201811591949 A CN 201811591949A CN 109632841 A CN109632841 A CN 109632841A
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- 238000001514 detection method Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 claims description 6
- 238000004088 simulation Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003252 repetitive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
Abstract
The invention discloses a kind of voltage-stablizer electric heater casing RT detection device and detection methods, the device includes the first supporting rod (1) and the second supporting rod (2), one end of first supporting rod (1) and the second supporting rod (2) is adjustable to be connected on stem pipe (3), the other end from different electric heater casing connections, detects while with realization to two electric heater casings respectively.Voltage-stablizer electric heater casing RT detection device of the present invention, structure is simple, easy to use, and detection efficiency is high, and positioning, fixed-focus are accurate.
Description
Technical field
The present invention relates to voltage-stablizer electric heater casing ray detection fields, and in particular to a kind of voltage-stablizer electric heater set
Pipe RT detection device and detection method.
Background technique
Nuclear power plant voltage stabilizer is pressure security equipment important in nuclear power station, is mainly used for carrying out primary Ioops main system
The regulation and control of pressure and volume to prevent coolant water from vaporizing in primary Ioops, and then guarantees primary Ioops main system pressure
Boundary integrity.
Voltage-stablizer is vertical cylindrical structure, is hemispheric end socket respectively up and down, and lower part is provided with electric heater,
In, electric heater is inserted into voltage-stablizer by lower head, and electric heater casing is cased with outside electric heater, and the two welding connects
It connects.In voltage-stablizer, electric heater casing is evenly distributed in concentric circles, such as: the voltage-stablizer of China's dragon No.1 (HL-1000), wherein
Points four circle of electric heater casing it is evenly distributed, amount to 108, every circle is respectively 18,24,30 and 36 from inside to outside
Root, adjacent electric heater casing arrangement are compact.
In the actual processing process, it needs to carry out ray detection to the weld seam between electric heater and electric heater casing
(Radiographic Testing, RT), to ensure that voltage-stablizer works normally.It is generally imaged in the prior art using double-walled slur
Technology implements ray detection to electric heater casing, and every electric heater casing needs to carry out the transillumination (two of at least two angles
A angle is mutually 90 degree).
But ray detection in the prior art is commonly present following problems:
(1) since the arrangement of adjacent electric heater casing is compact, the operating space of ray detection is narrow, is unfavorable for carrying out；
(2) the vertical height of weld seam to be detected is larger, and radioactive source is not fixed easily, and difficult with the contraposition of weld seam；
(3) angle adjusting accuracy is low, and focometry error is big.
Therefore, it is necessary to provide, a kind of positioning is rapid accurately, do not influenced by weld bead height, the voltage-stablizer electricity of focus adjustable adds
Hot device casing RT detection device.
Summary of the invention
In order to overcome the above problem, present inventor has performed sharp studies, design a kind of voltage-stablizer electric heater casing
RT detection device, the device include two supporting rods, and one end of two supporting rods is adjustable to be connected on stem pipe, the other end
Respectively from different electric heater casing connections, detection while to two electric heater casings may be implemented；And the device packet
The connecting pin for including focus adjustment component and quickly positioning can shorten the auxiliary para time, realize accurate fixed-focus and guarantee same
Electric heater casing weld seam obtains accurate mutual angled detection, detection efficiency and quality is improved, so as to complete this
Invention.
In particular it is object of the present invention to provide following aspect:
In a first aspect, the present invention provides a kind of voltage-stablizer electric heater casing RT detection devices, wherein described device packet
Include the first supporting rod 1 and the second supporting rod 2, wherein
One end of first supporting rod 1 and the second supporting rod 2 is adjustable to be connected on stem pipe 3, other end difference
From different electric heater casing connections, detected while with realization to two electric heater casings.
Wherein, first supporting rod 1 includes connecting with the first connecting pin 11 of electric heater casing connection and with stem pipe 3
The second connection end 12 connect is provided with radiographic source 31 in the stem pipe 3,
It is provided with the first focus adjustment component 13 between first connecting pin 11 and second connection end 12, is penetrated with adjusting
The focal length of line source and electric heater casing.
Wherein, first connecting pin 11 is yoke configurations, including the first semi-ring 111 and the second semi-ring 112, wherein
One end of first semi-ring 111 and the second semi-ring 112 is hinged, and the other end connects by the way that the first connector 113 is fixed
It connects；
Preferably, it is provided with the first cushion between first connecting pin 11 and electric heater casing, to prevent
Electric heater sleeve surface is caused to damage one connecting pin.
Wherein, the second connection end 12 is yoke configurations, including third semi-ring 121 and the 4th semi-ring 122, the two pass through
Second connector 123 is fixedly connected；
At the both ends of the third semi-ring 121, there are two tapped blind holes for setting, are arranged at the both ends of the 4th semi-ring 122
There are two tapped through hole,
Second connector 123 has external thread structure, is equipped in tapped blind hole and tapped through hole；
Preferably, it is additionally provided with the second cushion between the second connection end 12 and stem pipe 3, to prevent stem to manage
Outer wall is damaged.
Wherein, the thickness of the second connection end 12 is identical as the thickness of the first connecting pin 11, and the bottom surface of the two is same
In plane.
Wherein, the first focus adjustment component 13 includes connecting rod 133 and the first spiral shell that 133 both ends of connecting rod are arranged in
Spinner handle 131 and the second screw rod 132；
Preferably, the connecting rod 133 is hollow tubular, is equipped with end at the both ends of the connecting rod 133
134, to be connect respectively with the first screw rod 131 and the second screw rod 132.
Wherein, the top of the first supporting rod 1 is arranged in second supporting rod 2,
Second supporting rod 2 includes connecting with the third connecting pin 21 of electric heater casing connection and with stem pipe 3
4th connecting pin 22 is provided with the second focus adjustment component 23 between the third connecting pin 21 and the 4th connecting pin 22, with
Adjust the focal length of radiographic source and electric heater casing；
Preferably, the 4th connecting pin 22 is identical as the structure of second connection end 12 in the first supporting rod, and the two is coaxial
The outside of stem pipe 3 is set；
The second focus adjustment component 23 is identical as the structure of the first focus adjustment component 13；
The third connecting pin 21 is different from the structure of the first connecting pin 11.
Wherein, the third connecting pin 21 is yoke configurations, including ontology 211 and convex edge 212, the ontology 211 and convex
Diameter along 212 is identical；
Preferably, twice with a thickness of 22 thickness of the 4th connecting pin of the third connecting pin 21.
Second aspect, the present invention provides a kind of RT detection methods of voltage-stablizer electric heater casing, it is preferred to use first
Voltage-stablizer electric heater casing RT detection device described in aspect, wherein the described method comprises the following steps:
Step 1, simulation obtains the focal length of electric heater casing and radiographic source 31 to be detected；
Step 2, the detection device is fixed with electric heater casing and stem pipe 3 respectively, then according in step 1
Analogue data adjusts detection device；
Step 3, then radiographic source 31 is placed in the predetermined position in stem pipe 3, taken pictures by fixed film；
Step 4, after taking pictures, radiographic source 31 is removed, the position of detection device is then adjusted, is detected next time；
Step 5, step 2~4 are repeated, until detection finishes.
Wherein, in step 1, the electric heater casing to be detected is in concentric arrays, the electric heater on same circumference
Casing, the focal length for carrying out ray detection setting are identical.
Beneficial effect possessed by the present invention includes:
(1) voltage-stablizer electric heater casing RT detection device of the present invention, structure is simple, easy to use, is applicable in model
It encloses wide；
(2) voltage-stablizer electric heater casing RT detection device of the present invention, is not influenced by weld bead height, is not necessarily to from ground
Support is set up on face or other objects, is occupied little space, and the influence of other electric heater casings in detection space can be avoided, and
It will not cause any harm to the electric heater casing of detection；
(3) voltage-stablizer electric heater casing RT detection device of the present invention can be realized a quick step and clamp, can root
Radiographic source is fixed on any orientation around weld seam according to actual needs, two electric heater casings can be once detected simultaneously, improve
Detection efficiency；
(4) voltage-stablizer electric heater casing RT detection device of the present invention, can arbitrarily convert coke according to actual needs
Away from positioning, fixed-focus are accurate, meet electric heater casing radiographing requirements, good imaging quality.
Detailed description of the invention
Fig. 1 shows a kind of overall structure of the voltage-stablizer electric heater casing RT detection device of preferred embodiment of the present invention
Schematic diagram；
Fig. 2 shows a kind of overall structure diagrams of first supporting rod of preferred embodiment of the present invention；
Fig. 3 shows a kind of first supporting rod schematic top plan view of preferred embodiment of the present invention；
A in Fig. 4 shows a kind of overall structure diagram of first semi-ring of preferred embodiment of the present invention；
B in Fig. 4 shows a kind of schematic side view of first semi-ring of preferred embodiment of the present invention；
C in Fig. 4 shows a kind of schematic top plan view of first semi-ring of preferred embodiment of the present invention；
A in Fig. 5 shows a kind of overall structure diagram of second semi-ring of preferred embodiment of the present invention；
B in Fig. 5 shows a kind of schematic side view of second semi-ring of preferred embodiment of the present invention；
C in Fig. 5 shows a kind of schematic top plan view of second semi-ring of preferred embodiment of the present invention；
A in Fig. 6 shows a kind of overall structure diagram of the second connection end of preferred embodiment of the present invention；
B in Fig. 6 shows a kind of schematic side view of the second connection end of preferred embodiment of the present invention；
A in Fig. 7 shows a kind of overall structure diagram of the third connecting pin of preferred embodiment of the present invention；
B in Fig. 7 shows a kind of schematic side view of the third connecting pin of preferred embodiment of the present invention；
Fig. 8 shows a kind of use signal of voltage-stablizer electric heater casing RT detection device of preferred embodiment of the present invention
Figure.
Drawing reference numeral explanation:
The first supporting rod of 1-；
The first connecting pin 11-；
The first semi-ring of 111-；
The second semi-ring of 112-；
The first connector of 113-；
12- second connection end；
121- third semi-ring；
The 4th semi-ring of 122-；
The second connector of 123-；
13- the first focus adjustment component；
The first screw rod of 131-；
The second screw rod of 132-；
133- connecting rod；
The end 134-；
The second supporting rod of 2-；
21- third connecting pin；
211- ontology；
The convex edge 212-；
The 4th connecting pin 22-；
23- the second focus adjustment component；
3- stem pipe；
31- radiographic source.
Specific embodiment
Below by drawings and embodiments, the present invention is described in more detail.Illustrated by these, spy of the invention
Point and advantage will become more apparent from clear.Wherein, although the various aspects of embodiment are shown in the attached drawings, unless
It particularly points out, it is not necessary to attached drawing drawn to scale.
The present invention provides a kind of voltage-stablizer electric heater casing RT detection devices, as shown in Fig. 1~8, described device packet
Include the first supporting rod 1 and the second supporting rod 2, wherein the adjustable company in one end of first supporting rod 1 and the second supporting rod 2
It connects on stem pipe 3,
The other end from different electric heater casing connections, is examined while with realization to two electric heater casings respectively
It surveys.
In the present invention, as shown in Figure 1, being provided with radiographic source 31 in the stem pipe 3, the detection device is being installed
When, it need to guarantee that identical as the vertical height of weld seam in electric heater casing (i.e. radiographic source and weld seam are total to the vertical height of radiographic source
Face).
A kind of preferred embodiment according to the present invention, as shown in Figures 2 and 3, first supporting rod 1 includes and electric heating
First connecting pin 11 of device casing connection and the second connection end 12 being connect with stem pipe 3,
It is provided with the first focus adjustment component 13 between first connecting pin 11 and second connection end 12, is penetrated with adjusting
The focal length of line source and electric heater casing.
A kind of preferred embodiment according to the present invention, as shown in figure 3, first connecting pin 11 is yoke configurations, packet
Include the first semi-ring 111 and the second semi-ring 112, wherein
One end of first semi-ring 111 and the second semi-ring 112 is hinged, and the other end connects by the way that the first connector 113 is fixed
It connects.
In further preferred embodiment, as shown in a~c in a~c and Fig. 5 in Fig. 4, described the first half
The hinged end of ring 111 is provided with protrusion, and in the hinged end of second semi-ring 112, setting is fluted, in the protrusion and groove
On be provided with through-hole so that being fixedly connected after the first semi-ring 111 and the second semi-ring 112 are equipped with by fixing piece.
Wherein, the fixing piece passes through the through-hole of the first semi-ring 111 and the second semi-ring 112, the two is connected, the fixation
Part is preferably pin shaft.
Preferably, the through-hole on first semi-ring 111 and the second semi-ring 112 is tapped through hole, and the pin shaft is spiral shell
Line cylindrical pin.
In embodiment still more preferably, first connector 113 passes through screw thread and the first semi-ring 111 and the
The interconnecting piece of two semi-rings 112 connects, it is preferable that first connector 113 includes screw rod and nut.
Preferably, tapped through hole is offered in the interconnecting piece of first semi-ring 111 and the second semi-ring 112, with
A connection piece 113 is cooperatively connected.
Wherein, the nut is wing nut.
The inventors discovered that first connecting pin carries out quick locking using wing nut and screw rod, work can reduce
Make intensity.
A kind of preferred embodiment according to the present invention is arranged between first connecting pin 11 and electric heater casing
There is the first cushion, to prevent the first connecting pin from causing to damage to electric heater sleeve surface.
In further preferred embodiment, first cushion with a thickness of 0.8~1.2mm, preferably 1mm.
A kind of preferred embodiment according to the present invention, as shown in a and b in Fig. 6, the second connection end 12 is clip
Structure, including third semi-ring 121 and the 4th semi-ring 122, the two are fixedly connected by the second connector 123.
In further preferred embodiment, at the both ends of the third semi-ring 121, setting is there are two tapped blind hole,
The both ends of 4th semi-ring 122 are arranged there are two tapped through hole,
Second connector 123 has external thread structure, is equipped in tapped blind hole and tapped through hole.
Wherein, second connector 123 is preferably lock screw, such as socket cap clamping screw, from the 4th semi-ring
Outside passes through tapped through hole, into the tapped blind hole of third semi-ring, realizes the locking of second connection end 12.
In embodiment still more preferably, the inner wall of the third semi-ring 121 and the 4th semi-ring 122 constitutes cylinder
Shape, to be cooperatively connected with stem pipe 3；
The outer rim of 4th semi-ring 122 is in isosceles trapezoid shape, wherein the angle of two waists is 90 degree.
A kind of preferred embodiment according to the present invention is additionally provided between the second connection end 12 and stem pipe 3
Second cushion, to prevent stem pipe outer wall to be damaged.
Preferably, second cushion with a thickness of 0.3~0.7mm, preferably 0.5mm.
In further preferred embodiment, the thickness phase of the thickness of the second connection end 12 and the first connecting pin 11
Together, the bottom surface of the two is in the same plane.
Wherein, when the thickness of the second connection end refers to that second connection end setting is outside the pipe that has its source, two end faces
Along the distance of stem pipe axial direction；The first connecting pin that the thickness of first connecting pin refers to is arranged outside electric heater casing
When portion, distance of two end faces along electric heater casing axial direction.
A kind of preferred embodiment according to the present invention, as shown in figure 3, the first focus adjustment component 13 includes connection
Bar 133 and the first screw rod 131 and the second screw rod 132 that 133 both ends of connecting rod are set.
In further preferred embodiment, one end of first screw rod 131 is connected with the first connecting pin 11, separately
One end is connected with connecting rod 133,
Wherein, first screw rod 131 is connected through a screw thread with the first connecting pin 11.
The present inventor has found after study, since the specification of electric heater casing to be detected is different, needs according to reality
Situation replaces the first connecting pin (clip) of different size, therefore, connects in the present invention, it is preferred to which the first screw rod and first is arranged
End is connect to be threadedly coupled, in order to replace the first connecting pin (clip), to expand the scope of application.
In embodiment still more preferably, one end of second screw rod 132 and second connection end 12 are fixed
Connection, the other end are connect with connecting rod 133,
Preferably, second screw rod 132 is welded and fixed with second connection end 12.
In the present invention, due to not needed during using the detection device by second connection end from stem pipe
It disassembles, it is only necessary to adjust the second connector of loose second connection end to rotate it outside stem pipe, therefore, in the present invention
It is preferred that the third semi-ring of the second screw rod and second connection end is welded and fixed, to increase the tightness of component.
A kind of preferred embodiment according to the present invention, the connecting rod 133 is hollow tubular, in the connecting rod 133
Both ends be equipped with end 134, to be connect respectively with the first screw rod 131 and the second screw rod 132.
In further preferred embodiment, the outer diameter of the end 134 is greater than the diameter of connecting rod 133, and the two is same
Axis setting；
Preferably, the end 134 is hollow structure, so that the first screw rod 131 and the second screw rod 132 are equipped with
In hollow structure.
In embodiment still more preferably, it is internally provided with helicitic texture in the end 134, described first
It is provided with external thread structure outside screw rod 131 and the second screw rod 132, to connect with ends screw.
In the present invention, by rotating connecting rod 133, so that the first screw rod 131 and the second helix tube 132 are close simultaneously
Connecting rod center or simultaneously far from connecting rod center, to realize the adjustment of focal length.
Preferably, first screw rod 131 and the second screw rod 132 are hollow structure.
In the present invention, the first screw rod, the second screw rod 132 and connecting rod are disposed as hollow structure, are conducive to
Mitigate the overall weight of detection device, so that using more convenient.
It is highly preferred that locking member is provided on first screw rod 131 and the second screw rod 132, in focal length
The position of the first screw rod and the second screw rod is fixed after adjustment.
In the present invention, after adjusting the focal length of electric heater casing and radiographic source, it is preferred to use the fixed spiral shell of locking member
The position of spinner handle, to guarantee that ray detection process mid-focal length is stablized, effect of taking pictures is good.
A kind of preferred embodiment according to the present invention, as shown in Figure 1, second supporting rod 2 setting is in the first clamping
The top of bar 1, the structure of second supporting rod 2 is similar to the structure of the first supporting rod 1, including with electric heater casing connection
Third connecting pin 21 and with the 4th connecting pin 22 that connect of stem pipe 3,
It is provided with the second focus adjustment component 23 between the third connecting pin 21 and the 4th connecting pin 22, is penetrated with adjusting
The focal length of line source and electric heater casing.
In the present invention, the top is close to the direction of weld seam to be detected.
In further preferred embodiment, second connection end 12 in the 4th connecting pin 22 and the first supporting rod
Structure is identical, and the two is co-axially located at the outside of stem pipe 3；
The second focus adjustment component 23 is identical as the structure of the first focus adjustment component 13；
The third connecting pin 21 is different from the structure of the first connecting pin 11.
A kind of preferred embodiment according to the present invention, as shown in a and b in Fig. 7, the third connecting pin 21 is clip
Structure, including ontology 211 and convex edge 212, wherein
The ontology 211 is identical with the diameter of convex edge 212.
Wherein, the structure of the ontology 211 is identical as the structure of the first connecting pin 11, including two one end articulated connections,
The semi-ring that the other end is connected by connector.
In further preferred embodiment, the third connecting pin 21 with a thickness of the two of 22 thickness of the 4th connecting pin
Times；
Preferably, the thickness of the ontology 211 is identical as the thickness of convex edge 212.
In embodiment still more preferably, the upper surface of the ontology 211 and the upper surface of the 4th connecting pin 22
In the same plane.
In the present invention, it sets the thickness of third connecting pin 21 to twice of 22 thickness of the 4th connecting pin, it can be
When two connecting pins and the 4th connecting pin fit closely, so that the lower surface of the first connecting pin, second connection end and third connecting pin
In the same plane, so as to guarantee that stem pipe is parallel with the axis of electric heater casing, raising ray is taken pictures effect.
The present invention also provides a kind of RT detection methods of voltage-stablizer electric heater casing, it is preferred to use above-mentioned voltage-stablizer electricity
Heater well RT detection device, as shown in FIG. 1 to FIG. 8, described detection method includes the following steps:
Step 1, simulation obtains the focal length of electric heater casing and radiographic source to be detected.
In the present invention, it is preferred to simulated using positional relationship of the mapping software to electric heater casing to be detected,
Then the focal length of radiographic source and weld seam needed for ray detection is mapped out.
In the present invention, the electric heater casing to be detected is in concentric arrays, every complete circle electric heating of welding processing
Device casing carries out a weld seam ray detection.Wherein, the electric heater casing on same circumference carries out ray detection setting
Focal length is identical, and the focal length being arranged between difference circle is different.
In the present invention, it is adjusted to scheduled focal length, that is, can guarantee and reach scheduled angle.
Step 2, it will test device to fix with electric heater casing and stem pipe respectively, then according to the simulation in step 1
Data adjust detection device.
Wherein, one end of the first supporting rod 1 and the second supporting rod 2 is separately fixed at two electric heater sets to be detected
The other end is fixed on the outside of stem pipe 3 by the outside of pipe.
Step 3, then radiographic source is placed in the predetermined position in stem pipe, taken pictures by fixed film.
Wherein, film is fixed on electric heater casing back to the side of radiographic source.
In the present invention, the predetermined position is that position and to be detected two weld seam of the radiographic source in stem pipe are total
Face.
It in the present invention, when being detected, can be by first due to the rounded arrangement of electric heater casing to be detected
Supporting rod and the second supporting rod are adjusted to certain angle, to realize primary two electric heater casings of detection simultaneously, Neng Gouti
High 2 times of processing efficiencies.
Step 4, after taking pictures, radiographic source is removed, the position of detection device is then adjusted, is detected next time.
In a preferred embodiment, the first supporting rod is fixed on first electric heater jacket exterior first,
Second supporting rod is fixed on third branch electric heater jacket exterior, after taking pictures, the first supporting rod is added from first electricity
It is removed on hot device casing, installation to the 5th electric heater jacket exterior, loose second supporting rod is adjusted, by it in third branch electric heating
Device jacket exterior is rotated, so that postrotational final position, which is set, is mutually 90 degree with the position before rotation, step repetitive operation according to this,
To complete the transillumination detection of whole lap welding seam.
Step 5, step 2~4 are repeated, until detection finishes.
Wherein, in above-mentioned preferred embodiment, the whole circle weld seam detection of third branch electric heater casing is completed
Meanwhile the detection of the 5th electric heater casing half weld seam is completed, and then according to same operating procedure, rotatably the 5th
The supporting rod of branch electric heater jacket exterior so that being mutually an angle of 90 degrees with rotation front clamp bar after rotation, and then completes the 5th
The detection of the whole lap welding seam of electric heater casing.
Wherein, it using heretofore described device, is successively detected in the periphery of the electric heater casing of circular arrangement,
It is high in machining efficiency, registration, and do not limited by weld bead height, it can according to need transformation focal length.
Embodiment
It is detected using the electric heater casing of the device of the present invention voltage-stablizer of imperial No.1 (HL-1000) to China,
Wherein, the diameter of the voltage-stablizer is 2.7m, and four circle of electric heater casing point is evenly distributed, amounts to 108, from inside to outside every circle point
Not Wei 18,24,30,36, the diameter of electric heater casing is Φ 22mm, carry out RT detection as steps described below:
Step 1, by CAD graphics software simulation map out it is every circle (from inside to outside) focal length be followed successively by 374mm, 441mm,
393mm and 464mm；
Step 2, the one end that will test the first supporting rod and the second supporting rod in device is separately fixed at innermost circle the 1st
With the outside of the 3rd electric heater casing, by the other end of two supporting rods be fixed on stem pipe outside (the second supporting rod
The other end is upper, and the other end of the first supporting rod is under), it is adjusted according to the focal length 374mm in step 1；Wherein, the first folder
The aperture for holding bar and the second supporting rod and electric heater casing connection clip is 24mm, the cushion that inside is arranged with a thickness of 1mm；
The aperture for the clip that first supporting rod and the second supporting rod are connect with stem pipe (outer diameter 18.5mm) is 19mm, and inside setting is thick
Degree is the cushion of 0.5mm；
Step 3, film is fixed on the 1st and the 3rd electric heater casing of innermost circle back to the side of stem pipe, will penetrated
Line source is moved to position coplanar with weld seam in stem pipe, takes pictures；
Step 4, after taking pictures, radiographic source is removed, the first supporting rod is removed from the 1st electric heater casing, is pacified
It is filled to the 5th electric heater jacket exterior, loose second supporting rod is adjusted, it is rotated in the 3rd electric heater jacket exterior,
So that postrotational final position, which is set, is mutually 90 degree with the position before rotation, then and then for the second time take pictures.
Step 5, according to step 2~4 repetitive operations, until completing the four transillumination inspections for enclosing whole electric heater casing weld seams
It surveys.
Statistics complete 108 electric heater casing weld seam detections time be for 24 hours, compared with the existing technology, working efficiency
Improve 300%.
Meanwhile the testing result of electric heater casing weld seam is analyzed using biplate+monolithic evaluation method, as a result
Using after the device of the invention, the radiographic film quality (blackness and sensitivity) of acquired same circle electric heater is substantially complete for display
It is complete consistent, it ensure that the ray detection stability of electric heater casing weld seam, reduce radiographic inspection negative plate retakes rate.
In the description of the present invention, it should be noted that the instruction such as term " on ", "lower", "inner", "outside", "front", "rear"
Orientation or positional relationship be that the description present invention is merely for convenience of based on the orientation or positional relationship under working condition of the present invention
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure
It makes and operates, therefore be not considered as limiting the invention.In addition, term " first ", " second ", " third ", " the 4th " are only
For descriptive purposes, it is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " phase
Even " " connection " should broadly understood, for example, it may be being fixedly connected, may be a detachable connection, or the connection of one is general
It is logical；It can be mechanical connection, be also possible to be electrically connected；It can be and be directly connected to, can also be indirectly connected with by intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
Combining preferred embodiment above, the present invention is described, but these embodiments are only exemplary
, only play the role of illustrative.On this basis, a variety of replacements and improvement can be carried out to the present invention, these each fall within this
In the protection scope of invention.
Claims (10)
1. a kind of voltage-stablizer electric heater casing RT detection device, which is characterized in that described device include the first supporting rod (1) and
Second supporting rod (2), wherein
One end of first supporting rod (1) and the second supporting rod (2) is adjustable to be connected on stem pipe (3), the other end point
Not from different electric heater casing connections, detected while with realization to two electric heater casings.
2. the apparatus according to claim 1, which is characterized in that first supporting rod (1) includes and electric heater casing
The first connecting pin (11) of connection and the second connection end (12) connecting with stem pipe (3), are provided in stem pipe (3)
Radiographic source (31),
It is provided with the first focus adjustment component (13), between first connecting pin (11) and second connection end (12) to adjust
The focal length of radiographic source and electric heater casing.
3. the apparatus of claim 2, which is characterized in that first connecting pin (11) is yoke configurations, including the
One semi-ring (111) and the second semi-ring (112), wherein
One end of first semi-ring (111) and the second semi-ring (112) is hinged, and the other end is fixed by the first connector (113)
Connection；
Preferably, it is provided with the first cushion between first connecting pin (11) and electric heater casing, to prevent first
Electric heater sleeve surface is caused to damage connecting pin.
4. the apparatus of claim 2, which is characterized in that the second connection end (12) is yoke configurations, including the
Three semi-rings (121) and the 4th semi-ring (122), the two are fixedly connected by the second connector (123)；
At the both ends of the third semi-ring (121), there are two tapped blind holes for setting, are arranged at the both ends of the 4th semi-ring (122)
There are two tapped through hole,
Second connector (123) has external thread structure, is equipped in tapped blind hole and tapped through hole；
Preferably, it is additionally provided with the second cushion between the second connection end (12) and stem pipe (3), to prevent stem to manage
Outer wall is damaged.
5. the apparatus of claim 2, which is characterized in that the thickness of the second connection end (12) and the first connecting pin
(11) thickness is identical, and the bottom surface of the two is in the same plane.
6. the apparatus of claim 2, which is characterized in that the first focus adjustment component (13) includes connecting rod
(133) and setting connecting rod (133) both ends the first screw rod (131) and the second screw rod (132)；
Preferably, the connecting rod (133) is hollow tubular, is equipped with end at the both ends of the connecting rod (133)
(134), to be connect respectively with the first screw rod (131) and the second screw rod (132).
7. the apparatus of claim 2, which is characterized in that second supporting rod (2) is arranged in the first supporting rod (1)
Top,
Second supporting rod (2) includes connecting with the third connecting pin (21) of electric heater casing connection and with stem pipe (3)
The 4th connecting pin (22), be provided with the second focus adjustment group between the third connecting pin (21) and the 4th connecting pin (22)
Part (23), to adjust the focal length of radiographic source Yu electric heater casing；
Preferably, the 4th connecting pin (22) is identical as the structure of second connection end (12) in the first supporting rod, and the two is coaxial
It is arranged in the outside of stem pipe (3)；
The second focus adjustment component (23) is identical as the structure of the first focus adjustment component (13)；
The third connecting pin (21) is different from the structure of the first connecting pin (11).
8. device according to claim 7, which is characterized in that the third connecting pin (21) is yoke configurations, including this
Body (211) and convex edge (212), the ontology (211) are identical with the diameter of (212) convex edge；
Preferably, twice with a thickness of the 4th connecting pin (22) thickness of the third connecting pin (21).
9. a kind of RT detection method of voltage-stablizer electric heater casing, it is preferred to use voltage-stablizer described in one of claim 1 to 8
Electric heater casing RT detection device, which is characterized in that the described method comprises the following steps:
Step 1, simulation obtains the focal length of electric heater casing to be detected Yu radiographic source (31)；
Step 2, the detection device is fixed with electric heater casing and stem pipe (3) respectively, then according to the mould in step 1
Quasi- data adjust detection device；
Step 3, radiographic source (31) is then placed in the predetermined position in stem pipe (3), taken pictures by fixed film；
Step 4, after taking pictures, radiographic source (31) are removed, the position of detection device is then adjusted, is detected next time；
Step 5, step 2~4 are repeated, until detection finishes.
10. according to the method described in claim 9, it is characterized in that, the electric heater casing to be detected is in same in step 1
Heart circle best-fit, the electric heater casing on same circumference, the focal length for carrying out ray detection setting are identical.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811591949.8A CN109632841B (en) | 2018-12-25 | 2018-12-25 | Device and method for detecting RT of electric heater sleeve of voltage stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811591949.8A CN109632841B (en) | 2018-12-25 | 2018-12-25 | Device and method for detecting RT of electric heater sleeve of voltage stabilizer |
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| CN109632841A true CN109632841A (en) | 2019-04-16 |
| CN109632841B CN109632841B (en) | 2024-04-19 |
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| CN201811591949.8A Active CN109632841B (en) | 2018-12-25 | 2018-12-25 | Device and method for detecting RT of electric heater sleeve of voltage stabilizer |
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