CN212159692U - Power station steam turbine T type blade root ultrasonic phased array detects simulation defect test block - Google Patents
Power station steam turbine T type blade root ultrasonic phased array detects simulation defect test block Download PDFInfo
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- CN212159692U CN212159692U CN202020292703.7U CN202020292703U CN212159692U CN 212159692 U CN212159692 U CN 212159692U CN 202020292703 U CN202020292703 U CN 202020292703U CN 212159692 U CN212159692 U CN 212159692U
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Abstract
The utility model belongs to the technical field of ultrasonic detection test blocks, in particular to a power station steam turbine T-shaped blade root ultrasonic phased array detection simulation defect test block, aiming at the problem that the quantity of different types of defects in the existing simulation defect test block is single, so that the test block can only detect whether an instrument has the capability of detecting the defects or not, but can not obtain the functional relation between the size of the defect and the waveform change received by the instrument, the following proposal is proposed, which comprises a first supporting plate and a second supporting plate, wherein a first comparison block is fixedly arranged on the first supporting plate, a first square hole is arranged on the first comparison block, a first circular ring is arranged in the first square hole in a sliding way, a first defect block is fixedly arranged on the first circular ring, first cracks, second cracks and the like with different sizes are respectively arranged in the first defect block and the second defect block of the utility model, the functional relationship between waveform variation and defect size can be calculated from the waveform variation collected by the instrument.
Description
Technical Field
The utility model relates to an ultrasonic testing test block technical field especially relates to a power station steam turbine T type blade root supersound phased array detects simulation defect test block.
Background
Power station steam turbine T type blade root, the part that the shape that indicates to be used for power station steam turbine inside is the T style of calligraphy, the power station steam turbine belongs to precision equipment, therefore it is higher to the requirement of blade root part, after blade root production, need confirm after the ultrasonic phased array detects that just can put into use after not having the flaw, and ultrasonic phased array detects, indicate through the inside transmission ultrasonic wave to the part that waits to detect, whether the wave form that obtains through ultrasonic reflection detects the part and exists the flaw like the crackle, when the inside extremely its tiny unevenness position such as crackle that exists of part, the wave form that ultrasonic wave feedback obtained will fluctuate, the oscillogram fluctuates, then prove that the part has the defect.
In the ultrasonic phased array detection, an instrument for generating ultrasonic waves is generally required to be calibrated before being used, so that the wavelength frequency and the like of the ultrasonic waves are suitable for an object to be detected, when equipment is calibrated, a test block is generally required to be used, if the comparison test block can be used for adjusting the wavelength and the frequency of the ultrasonic waves generated by the instrument, the simulation test block enables the instrument to detect by manually setting known defects, whether the instrument has the capacity of detecting the defects is inversely measured, the existing simulation defect test block does not always have the comparison effect, the quantity of different types of defects in the test block is single, the functional relation between the ultrasonic wave shape and the defect size change cannot be obtained through simulation detection, the detection result can only simply obtain the conclusion whether the test block has the defects, and therefore a novel test block with the comparison effect is required to solve the problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the quantity singleness that has different kinds of defects in the simulation defect test block among the prior art, consequently the test block can only detect out the instrument and whether possess the ability that detects the defect, and can' T obtain the size of defect and the shortcoming of the functional relation between the instrument received waveform change, and the power station steam turbine T type blade root ultrasonic phased array that provides detects simulation defect test block.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a power station steam turbine T type blade root ultrasonic phased array detects simulation defect test block, including first backup pad and second backup pad, fixed mounting has first contrast piece on the first backup pad, first square hole has been seted up on the first contrast piece, sliding mounting has first ring in the first square hole, fixed mounting has first defect piece on the first ring, fixed mounting has second defect piece on the first defect piece, the second quad slit has been seted up on the first defect piece, the second circular port has been seted up on the second defect piece, fixed mounting has the second ring on the second defect piece, sliding mounting has second contrast piece on the second ring, first circular port has been seted up on the second contrast piece, the one side and the second backup pad fixed connection of keeping away from first contrast piece of second contrast piece, first square hole and second quad slit are the hole that the cross-section is the square, first circular port and second circular port are the hole that the cross-section is the circle.
Preferably, a first limiting ring is fixedly mounted on the first comparison block and matched with the first circular ring, a second limiting ring is fixedly mounted on the second comparison block and matched with the second circular ring, the first circular ring and the first limiting ring limit the moving range, and the second circular ring and the second limiting ring limit the moving range.
Preferably, a first welding block and a second welding block are fixedly mounted in the first defect block and the second defect block, the first welding block is matched with the second welding block, the shapes of the first welding block and the second welding block are the same, and the sizes of the first welding block and the second welding block are known and are different in size ratio.
Preferably, the first defect block and the second defect block are internally provided with a first crack and a second crack, the first crack and the second crack are matched, the first crack and the second crack have the same shape and different size proportions, and the sizes of the first crack and the second crack are known.
Preferably, first chutes and second chutes are formed in the first defect block and the second defect block, first slag clamps are fixedly mounted in the two first chutes, second slag clamps are fixedly mounted in the two second chutes, the first slag clamps are matched with the second slag clamps, and the first slag clamps and the second slag clamps have the same shape, different size ratios and known sizes.
The utility model discloses in, a power station steam turbine T type blade root ultrasonic phased array detects simulation defect test block, the problem of contrast effect does not possess for the defect in solving the simulation defect test block, the first crackle that the shape is the same and the proportion of sizes is different has all been set up in first defect piece and second defect piece, the second crackle etc., when utilizing ultrasonic phased array to examine the test block, can pass through the wave form change when first crackle and second crackle of ultrasonic wave, obtain the functional relation that crackle and ultrasonic wave form change, and on the same way, the ultrasonic wave is through first double-layered sediment, sediment and first welding block are pressed from both sides to the second, can all obtain corresponding functional relation when the second welding block.
The utility model discloses in, for the convenience of the instrument is applicable to the test block, has set up first contrast piece and second contrast piece, when the ultrasonic wave was through first contrast piece, can observe complete waveform and adjust ultrasonic wave wavelength and frequency on the oscilloscope screen, when can observing complete waveform up to the oscilloscope screen, then ultrasonic wave wavelength and frequency this moment can be used for detecting the test block.
The utility model discloses in, first contrast piece and second contrast piece can regard as the contrast to obtain the waveform that the ultrasonic wave obtained when the circular port is propagated and the waveform difference that obtains when the quad slit is propagated, and all set up not unidimensional first crackle, second crackle, first welding piece etc. in first defect piece and the second defect piece, then can calculate the functional relation between waveform change and the defect size according to the waveform change that the instrument was collected.
Drawings
FIG. 1 is a cross-sectional view of a power station steam turbine T-blade root ultrasonic phased array detection simulation defect test block provided by the present invention;
FIG. 2 is a schematic diagram showing a three-dimensional structure of a first defect block and other structures in a T-shaped blade root ultrasonic phased array detection simulation defect test block of a power station steam turbine provided by the present invention;
fig. 3 is the utility model provides a power station steam turbine T type blade root ultrasonic phased array detects the spatial structure sketch map of second defect piece isotructure in the simulation defect test block.
In the figure: the welding device comprises a first supporting plate 1, a first comparison block 2, a first square hole 3, a first circular ring 4, a first defect block 5, a first limiting ring 6, a second defect block 7, a second circular ring 8, a second comparison block 9, a first circular hole 10, a second supporting plate 11, a second limiting ring 12, a first welding block 13, a second welding block 14, a first crack 15, a second crack 16, a first slag 17 and a second slag 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example one
Referring to fig. 1-3, a power station steam turbine T-shaped blade root ultrasonic phased array detection simulation defect test block comprises a first support plate 1 and a second support plate 11, a first comparison block 2 is fixedly installed on the first support plate 1, a first square hole 3 is formed in the first comparison block 2, a first circular ring 4 is slidably installed in the first square hole 3, a first defect block 5 is fixedly installed on the first circular ring 4, a second defect block 7 is fixedly installed on the first defect block 5, a second square hole is formed in the first defect block 5, a second circular hole is formed in the second defect block 7, a second circular ring 8 is fixedly installed on the second defect block 7, a second comparison block 9 is slidably installed on the second circular ring 8, a first circular hole 10 is formed in the second comparison block 9, one side of the second comparison block 9, which is far away from the first comparison block 2, is fixedly connected with the second support plate 11, the square holes are formed in square cross sections of the first square hole 3 and the second square hole, first circular port 10 and second circular port are the hole that the cross-section is the circle for the cross-section, and first circular port 10 and first square hole 3 obtain the wave form when passing through first circular port 10 and first square hole 3 through collecting the ultrasonic wave as the contrast group, contrast and draw the difference on the wave form when the ultrasonic wave is downthehole to be propagated in different shapes.
The utility model discloses in, fixed mounting has first spacing ring 6 on the first contrast piece 2, first spacing ring 6 cooperatees with first ring 4, fixed mounting has second spacing ring 12 on the second contrast piece 9, second spacing ring 12 cooperatees with second ring 8, first ring 4 and the mutual restriction home range of first spacing ring 6 for can stretch out and draw back and can not break away from between first contrast piece 2 and the first defect piece 5, second ring 8 and the mutual restriction home range of second spacing ring 12, make and can stretch out and draw back and can not break away from between second contrast piece 9 and the second defect piece 7.
The utility model discloses in, equal fixed mounting has first welded block 13 and second welded block 14 in first defect piece 5 and the second defect piece 7, and first welded block 13 cooperatees with second welded block 14, and first welded block 13 is the same with second welded block 14 shape, and both sizes are known and the size proportion is different, and when the ultrasonic wave through first welded block 13 and second welded block 14, can change through observing the waveform, obtain the functional relation of ultrasonic wave waveform about the welding line size.
The utility model discloses in, first crackle 15 and second crackle 16 have all been seted up in first defect piece 5 and the second defect piece 7, and first crackle 15 and second crackle 16 cooperate, and first crackle 15 is the same with the 16 shape of second crackle and the size proportion is different and the size is known, and when the ultrasonic wave through first crackle 15 and second crackle 16, can obtain the functional relation of ultrasonic wave waveform about the crackle size through observing the waveform change.
The utility model discloses in, first spout and second spout have all been seted up in first defect piece 5 and the second defect piece 7, equal fixed mounting has the first sediment 17 that presss from both sides in two first spouts, equal fixed mounting has the second to press from both sides sediment 18 in two second spouts, first sediment 17 that presss from both sides and the second presss from both sides sediment 18 and cooperatees, first sediment 17 that presss from both sides and the second presss from both sides 18 shapes the same and the different just size of size proportion is known, press from both sides sediment 18 when the ultrasonic wave through first sediment 17 that presss from both sides and the second, can change through observing the wave form, obtain the functional relation of ultrasonic wave form about the crackle size.
Example two
Referring to fig. 1-3, a power station steam turbine T-shaped blade root ultrasonic phased array detection simulation defect test block comprises a first support plate 1 and a second support plate 11, a first comparison block 2 is welded on the first support plate 1, a first square hole 3 is formed on the first comparison block 2, a first circular ring 4 is slidably mounted in the first square hole 3, a first defect block 5 is welded on the first circular ring 4, a second defect block 7 is welded on the first defect block 5, a second square hole is formed on the first defect block 5, a second circular hole is formed on the second defect block 7, a second circular ring 8 is welded on the second defect block 7, a second comparison block 9 is slidably mounted on the second circular ring 8, a first circular hole 10 is formed on the second comparison block 9, one side of the second comparison block 9, which is far away from the first comparison block 2, is fixedly connected with the second support plate 11, the first square hole 3 and the second square hole are square holes in cross section, first circular port 10 and second circular port are the hole that the cross-section is the circle for the cross-section, and first circular port 10 and first square hole 3 obtain the wave form when passing through first circular port 10 and first square hole 3 through collecting the ultrasonic wave as the contrast group, contrast and draw the difference on the wave form when the ultrasonic wave is downthehole to be propagated in different shapes.
The utility model discloses in, the welding has first spacing ring 6 on the first contrast piece 2, and first spacing ring 6 cooperatees with first ring 4, and the welding has second spacing ring 12 on the second contrast piece 9, and second spacing ring 12 cooperatees with second ring 8, and first ring 4 and first spacing ring 6 restrict the home range each other for can stretch out and draw back and can not break away from between first contrast piece 2 and the first defect piece 5, and second ring 8 and second spacing ring 12 restrict the home range each other, make can stretch out and draw back and can not break away from between second contrast piece 9 and the second defect piece 7.
The utility model discloses in, all weld in first defect piece 5 and the second defect piece 7 and have first welding piece 13 and second welding piece 14, first welding piece 13 cooperatees with second welding piece 14, and first welding piece 13 is the same with second welding piece 14 shape, and both sizes are known and the size proportion is different, and when the ultrasonic wave through first welding piece 13 and second welding piece 14, can change through observing the waveform, obtain the function relation of ultrasonic wave waveform about the welding line size.
The utility model discloses in, first crackle 15 and second crackle 16 have all been seted up in first defect piece 5 and the second defect piece 7, and first crackle 15 and second crackle 16 cooperate, and first crackle 15 is the same with the 16 shape of second crackle and the size proportion is different and the size is known, and when the ultrasonic wave through first crackle 15 and second crackle 16, can obtain the functional relation of ultrasonic wave waveform about the crackle size through observing the waveform change.
The utility model discloses in, first spout and second spout have all been seted up in first defect piece 5 and the second defect piece 7, and all the welding has first sediment 17 of pressing from both sides in two first spouts, and all the welding has the second to press from both sides sediment 18 in two second spouts, and first sediment 17 of pressing from both sides and the second presss from both sides sediment 18 and cooperatees, and first sediment 17 of pressing from both sides and the second presss from both sides 18 shapes the same and the size proportion is different and the size is known, presss from both sides sediment 18 when the ultrasonic wave through first sediment 17 of pressing from both sides and second, can change through observing the waveform, obtains the function relation of ultrasonic wave shape about the crackle size, the utility model discloses in, the size of each structure should be according to actual conditions do corresponding adjustment on size, position, size proportion to the phase-controlled ultrasonic array detecting instrument of the different specifications of adaptation, the embodiment only does on the picture the utility model discloses in each structure the connection relation on the functionality.
In the utility model, whether to expand the whole test block is selected according to the needs, when the ultrasonic frequency or wavelength of the ultrasonic phased array detecting instrument is not well calibrated, the first comparison block 2 and the second comparison block 9 are expanded by drawing in a stretching mode, then the ultrasonic emission probe of the ultrasonic phased array detecting instrument is extended into the test block from two ends, when the probe passes through the first square hole 3 and the first circular hole 10, different feedback waveforms can be obtained, whether the complete and clear waveform can be observed through an oscilloscope screen to adjust the frequency, wavelength and the like of the ultrasonic, after the adjustment is finished, the first comparison block 2 and the second comparison block 9 are retracted, the probe with well calibrated wavelength and frequency is extended into the first defect block 5, along with the slow movement of the ultrasonic probe, the ultrasonic wave passes through the first welding block 13 and the second welding block 14 successively, and two different waveform changes can be obtained simultaneously, according to the change of the waveform, the functional relation of the ultrasonic waveform about the size of the welding position can be calculated by combining the size proportion of the first welding block 13 and the second welding block 14, and similarly, the ultrasonic probe continuously extends into the circular hole, the waveform change can be generated when the ultrasonic probe sequentially passes through the first crack 15, the second crack 16, the first slag inclusion 17 and the second slag inclusion 18, the functional relation of the ultrasonic waveform about the size of the crack and the size of the slag inclusion can be obtained by calculation, then the ultrasonic probe continuously extends into the second defect block 7, the waveform change about the size of the welding block, the size of the crack and the size of the slag inclusion can be obtained when the ultrasonic wave is transmitted in the circular hole, and the related functional relation can be calculated.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. A power station steam turbine T-shaped blade root ultrasonic phased array detection simulation defect test block comprises a first support plate (1) and a second support plate (11), and is characterized in that a first comparison block (2) is fixedly installed on the first support plate (1), a first square hole (3) is formed in the first comparison block (2), a first circular ring (4) is installed in the first square hole (3) in a sliding mode, a first defect block (5) is fixedly installed on the first circular ring (4), a second defect block (7) is fixedly installed on the first defect block (5), a second square hole is formed in the first defect block (5), a second circular hole is formed in the second defect block (7), a second circular ring (8) is fixedly installed on the second defect block (7), a second comparison block (9) is installed on the second circular ring (8) in a sliding mode, a first circular hole (10) is formed in the second comparison block (9), the side of the second contrast block (9) far away from the first contrast block (2) is fixedly connected with a second supporting plate (11).
2. The power station steam turbine T-shaped blade root ultrasonic phased array detection simulation defect test block as claimed in claim 1, wherein a first limiting ring (6) is fixedly installed on the first comparison block (2), the first limiting ring (6) is matched with the first circular ring (4), a second limiting ring (12) is fixedly installed on the second comparison block (9), and the second limiting ring (12) is matched with the second circular ring (8).
3. The power station steam turbine T-shaped blade root ultrasonic phased array detection simulation defect test block as claimed in claim 1, wherein a first welding block (13) and a second welding block (14) are fixedly installed in the first defect block (5) and the second defect block (7), and the first welding block (13) is matched with the second welding block (14).
4. The power station steam turbine T-shaped blade root ultrasonic phased array detection simulation defect test block as claimed in claim 1, wherein the first defect block (5) and the second defect block (7) are both provided with a first crack (15) and a second crack (16), and the first crack (15) and the second crack (16) are matched.
5. The power station steam turbine T-shaped blade root ultrasonic phased array detection simulation defect test block as claimed in claim 1, wherein a first chute and a second chute are respectively formed in the first defect block (5) and the second defect block (7), first slag inclusions (17) are respectively and fixedly installed in the two first chutes, second slag inclusions (18) are respectively and fixedly installed in the two second chutes, and the first slag inclusions (17) and the second slag inclusions (18) are matched.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113838001A (en) * | 2021-08-24 | 2021-12-24 | 内蒙古电力科学研究院 | Ultrasonic full-focus image defect processing method and device based on nuclear density estimation |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113838001A (en) * | 2021-08-24 | 2021-12-24 | 内蒙古电力科学研究院 | Ultrasonic full-focus image defect processing method and device based on nuclear density estimation |
| CN113838001B (en) * | 2021-08-24 | 2024-02-13 | 内蒙古电力科学研究院 | Ultrasonic wave full focusing image defect processing method and device based on nuclear density estimation |
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