CN208076422U - Detection device based on gamma-ray detection rotary wheel of water turbine crack - Google Patents
Detection device based on gamma-ray detection rotary wheel of water turbine crack Download PDFInfo
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- CN208076422U CN208076422U CN201820377228.6U CN201820377228U CN208076422U CN 208076422 U CN208076422 U CN 208076422U CN 201820377228 U CN201820377228 U CN 201820377228U CN 208076422 U CN208076422 U CN 208076422U
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Abstract
The utility model discloses a kind of detection devices based on gamma-ray detection rotary wheel of water turbine crack, detection ontology including six-sided solids structure, handle in detection body bottom portion is set, setting is in detection bodies top, and the hinged cover with the detection ontology, gamma-rays transmitter in detection ontology front end is set, setting is in detection ontology front end, gamma-ray gamma-ray receiver for receiving reflection, setting is in detection ontology rear end, display screen for showing gamma-rays parameter and gamma-rays volume reflection, setting is in detection ontology rear end, setting button for gamma-rays parameter setting, detection button in handle upper limb is set, storage card in one side of detection ontology is set, and it is built in detection ontology, and respectively with gamma-rays transmitter, gamma-ray receiver, the controller that storage card is connected with display screen.The advantages that the utility model concrete structure is simple, detection is convenient, space exploration flexibility is high, detection efficient is high.
Description
Technical field
The utility model is related to rotary wheel of water turbine inspection technique fields, are based especially on gamma-ray detection rotary wheel of water turbine and split
The detection device of seam.
Background technology
Rotary wheel of water turbine is that turbine-generator units kinetic energy provides component, under the action of water conservancy potential energy, pushes hydraulic generator
The runner of unit rotates, and the kinetic energy of rotation is provided for unit.Rotary wheel of water turbine can be divided into impact type, mixed flow according to diversion mode
Formula, axial-flow type, tilt-impulse type, axis stretch tubular, scaled bulb tubular, since rotary wheel of water turbine absorbs water conservancy potential energy, and by water conservancy gesture
It can be converted into rotation function so that turbine runner blade absorbs impact power for a long time, and blade certainly exists mechanical damage.In addition,
The a large amount of silts of content or floating material in water can also cause to damage when it enters rotary wheel of water turbine to runner.Therefore, in water wheels
When unit maintenance, it is required to detect a flaw to rotary wheel of water turbine.
Currently, rotary wheel of water turbine flaw detection includes ultrasonic listening, penetrant inspection, magnetization detection, sound emission flaw detection etc.,
In, ultrasonic listening best results, it is the depths of metal material to be penetrated using ultrasound, and enter another section by a section
When, a kind of method of part defect is checked the characteristics of interface edge reflects, when ultrasonic beam from piece surface by visiting
Head passes to metal inside, encounters defect and back wave just occurs when part bottom surface respectively, form impulse waveform on fluorescent screen,
Judge defective locations and size according to these impulse waveforms.Its shortcoming is that need to shoot several images progress comprehensive analysis,
It analyzes heavy workload, and the cost is relatively high, and equipment instrument is larger, is answered in narrow space significant discomfort.Penetrant inspection is again
Referred to as dye penetrant inspection, which is capillary phenomenon, makes penetrating fluid penetrate into defect, cleaned that surface penetration liquid is made to remove, and the infiltration in defect
Residual recycles the capillarity of developer to absorb in defect and remains penetrating fluid and achieve the purpose that examine defect.Due to
Dye penetrant inspection is at low cost, and Effect on Detecting is good, runner flaw detection in it is most frequently used, but this method there is also flaw detection the time compared with
The shortcomings that long, needs are observed for a long time.In addition, magnetization detection is one for detecting ferrimagnet surface and near surface flaw
Kind detection method, if workpiece surface or the defective presence of near surface, since the magnetic resistance of fault location increases and is produced when workpiece magnetizing
Raw leakage field, forms local magnetic field, the magnetic powder just shape of display defect and position here, to judge the presence of defect.The magnetic
Change the detection that detection is only applicable to tiny precision metal parts, it is higher using the energy consumption needed on larger component.In addition, sound
Its principle of transmitting flaw detection is that the elastic wave emitted from acoustic emission source is eventually spread to reach the surface of material, causes that sound emission can be used
The mechanical oscillation of material are converted to electric signal, are then amplified, handle again by the surface displacement of sensor detection, these detectors
And record；This method is suitable for ultra-thin material and detects a flaw, and significant discomfort is used on rotary wheel of water turbine.
According to gamma-ray detection metal crack principle it is found that gamma-rays has stronger penetration capacity, when gamma-rays irradiates
When on metal, most gamma-rays will pass through metal, and few ray is reflected.But there is crack in detection
Metal when, due to refractive index difference, gamma-rays, which meets gap, will generate a large amount of reflections.Currently, in rotary wheel of water turbine inspection technique
Field is not directed to the device that rotary wheel of water turbine slight crack is detected using gamma-rays.
Utility model content
The purpose of this utility model is to provide a kind of detection devices based on gamma-ray detection rotary wheel of water turbine crack, main
Solve the problems such as detection existing in the prior art is of high cost, detection time is long.
To achieve the goals above, the technical solution adopted in the utility model is as follows：
Based on the detection device in gamma-ray detection rotary wheel of water turbine crack, including with bottom, top, front end, rear end and
The detection ontology of the six-sided solids structure of both sides, be arranged detection body bottom portion handle, setting detection bodies top and
The gamma-rays transmitter in detection ontology front end is arranged in the hinged cover with the detection ontology, and setting is in detection ontology front end, use
In the gamma-ray gamma-ray receiver for receiving reflection, it is arranged in detection ontology rear end, for showing that gamma-rays parameter and γ are penetrated
The display screen of line reflection amount is arranged in detection ontology rear end, for the setting button of gamma-rays parameter setting, is arranged on handle
The storage card in one side of detection ontology is arranged in the detection button of edge, and is built in detection ontology and is sent out respectively with gamma-rays
The controller that emitter, gamma-ray receiver, storage card and display screen connect；The detection ontology and handle collectively form shell.
Further, further include being arranged on cover, being connect with controller and for rotary wheel of water turbine detection illumination
LED illumination lamp.
Preferably, the handle is equipped at least 2 hand-held anti-skidding non-skid bands.
Further, the handle base edge is additionally provided with a stopper protrusion.
Compared with prior art, the utility model has the advantages that：
(1) the utility model emits gamma-rays, and adopt by the detection device of setting hand-held using gamma-rays transmitter
The gamma-rays amount of reflection is obtained with gamma-ray receiver, the gamma-rays quantity that unit area receives reflection is more, then illustrates herein
It is more apparent that there are gaps, judges the blade of rotary wheel of water turbine and the quality of solder design according to this.In addition, the utility model has
Have the characteristics that it is small, rotary wheel of water turbine narrow space detection show its advantage；And the gamma-rays amount using reflection is anti-
It answers the detection time of metal quality shorter, is not necessarily to multiple photographic analysis, need to only be detected once in same metal dots, just can react this
Locate the gap situation of metal.Thus, which the utility model can shorten detection time and reduce testing cost.
(2) the utility model is ingenious on cover is provided with LED illumination lamp, it is generally known that, in water turbine set light maintenance, turn
Wheel is not hung out, is in dark, moist spiral case.Testing staff needs one to hold detection device, and the other hand is shaken hands torch, real
It is then very inconvenient；And testing staff needs to shuttle in spiral case, and there are testing staff's personal safety hidden danger.This programme passes through increasing
If illumination auxiliary, keeps monitoring personnel safer in detection process.
(3) the utility model is provided with non-skid band and stopper protrusion in handle, makes hand-held more reliable, and detection is effectively avoided to fill
The problem of setting landing.It can be said that the utility model concrete structure is simple, detection is convenient, space exploration flexibility is high, detection efficient
The advantages that high, has very high practical value and promotional value in rotary wheel of water turbine inspection technique field.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the utility model.
Fig. 2 is the front view of the utility model.
Fig. 3 device catenation principle figures in order to control.
In above-mentioned attached drawing, the corresponding component names of reference numeral are as follows：
1- detects ontology, 2- handles, 3- covers, 4- accumulators, 5- gamma-rays transmitters, 6- gamma-ray receivers, 7-LED
Headlamp, 8- storage cards, 9- display screens, 10- setting buttons, 11- detect button, 12- non-skid bands, 13- stopper protrusions.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples, and the embodiment of the utility model includes
But it is not limited to the following example.
Embodiment
As shown in Figure 1 to Figure 3, a kind of detection dress based on gamma-ray detection rotary wheel of water turbine crack is present embodiments provided
It sets, foreground is had a vast market in rotary wheel of water turbine inspection field.According to the requirement of hydraulic turbine repair and maintenance standard, the hydraulic turbine
Runner needed to carry out a light maintenance at interval of 1~2 year, needed within 5~10 years to carry out an overhaul.In each light maintenance, it is required to
Flaw detection is detected to rotary wheel of water turbine, at this point, rotary wheel of water turbine is in dark, humidity spiral case, and rotary wheel of water turbine
There are many places narrow space, traditional detector or method there is a problem of more, be not easy to carry out crack to rotary wheel of water turbine
Detection.
Therefore, the present embodiment proposes this programme according to the live physical condition spy of detection, and specifically, which includes
The shell collectively constituted by detection ontology 1 and handle 2, is arranged the gamma-rays transmitter 5 in 1 front end of detection ontology, and setting is being visited
1 front end of ontology, the gamma-ray gamma-ray receiver 6 for receiving reflection are surveyed, is arranged in 1 rear end of detection ontology, for showing
The display screen 9 of gamma-rays parameter and gamma-rays volume reflection, setting are at the top of detection ontology 1 and hinged, real with the detection ontology 1
The cover 3 being fastened on display screen 9 is now closed, is arranged in 1 rear end of detection ontology, for the setting button of gamma-rays parameter setting
10, it is arranged in 2 upper end edge of handle, for detecting the detection button 11 taken pictures, the storage in 1 one side of detection ontology is set
Card 8, the LED illumination lamp 7 at 3 back side of cover is set, and be built in detection ontology 1 and respectively with gamma-rays transmitter 5, γ
The controller that ray receiver 6, LED illumination lamp 7, storage card 8 and display screen 9 connect.
In addition, in order to cope with environment moist, dark in spiral case, while LED illumination lamp 7 are arranged in 3 back side of cover,
3 hand-held anti-skidding non-skid bands 12 and a stopper protrusion 13 are equipped on handle 2.The improvement that the present embodiment is constructed based on structure,
Memory card interface circuit, microprocessor CPU, driving circuit 1, driving circuit 2 and conduction amount counting circuit in controller is equal
For existing forming module, and memory card interface circuit is connect with storage card plug-in, in addition, microprocessor passes through drive respectively
Dynamic circuit drives gamma-rays transmitter and LED illumination lamp work calculate gamma-ray receiver by conduction amount counting circuit and receive
Final result is fed back to microprocessor, and is shown by display screen by the gamma-rays quantity of reflection.The gamma-ray receiver
The gamma-rays of recruiting unit's area reflects, and gamma-rays reflection quantity is more, and electric current caused by gamma-ray receiver is more, leads
The electric current for reacting gamma-rays reflection quantity is converted into the digital signal of microprocessor by flux counting circuit.In the utility model
Not to memory card interface circuit, microprocessor CPU, driving circuit 1, driving circuit 2 and conduction amount counting circuit itself
It is improved, this body structure of details are not described herein its circuit.By above-mentioned improvement, the present embodiment can be realized to rotary wheel of water turbine
Crack Detection, and it is specific small, while miscellaneous function has also been expanded, keep its use more convenient；At the same time, this dress
It sets and also improves the range that narrow space uses.In conclusion the utility model is compared with prior art, there is substantive spy
Point and progress, foreground is had a vast market in rotary wheel of water turbine inspection technique field.
Above-described embodiment is only the preferred embodiment of the utility model, is not intended to limit the scope of the present invention,
In every case using the design principle of the utility model, and the non-creative variation worked and made is carried out on this basis, it should all
Belong within the scope of protection of the utility model.
Claims (4)
1. the detection device based on gamma-ray detection rotary wheel of water turbine crack, which is characterized in that including with bottom, top, preceding
The handle (2) in detection ontology (1) bottom is arranged in the detection ontology (1) of the six-sided solids structure at end, rear end and both sides, if
Cover (3) at the top of detection ontology (1) and hinged with the detection ontology (1) is set, the γ in detection ontology (1) front end is set
Ray emitter (5) is arranged in detection ontology (1) front end, the gamma-ray gamma-ray receiver (6) for receiving reflection, if
It sets in detection ontology (1) rear end, the display screen (9) for showing gamma-rays parameter and gamma-rays volume reflection, setting is detecting this
The detection button (11) in handle (2) upper limb is arranged in body (1) rear end, the setting button (10) for gamma-rays parameter setting, if
Set the storage card (8) in detection ontology (1) one side, and be built in detection ontology (1) and respectively with gamma-rays transmitter
(5), the controller of gamma-ray receiver (6), storage card (8) and display screen (9) connection；The detection ontology (1) and handle (2)
Collectively form shell.
2. the detection device according to claim 1 based on gamma-ray detection rotary wheel of water turbine crack, which is characterized in that also
It is connect on cover (3), with controller and for the LED illumination lamp (7) of rotary wheel of water turbine detection illumination including being arranged.
3. the detection device according to claim 2 based on gamma-ray detection rotary wheel of water turbine crack, which is characterized in that institute
Handle (2) is stated equipped at least 2 hand-held anti-skidding non-skid bands (12).
4. the detection device according to claim 3 based on gamma-ray detection rotary wheel of water turbine crack, which is characterized in that institute
It states handle (2) bottom margin and is additionally provided with a stopper protrusion (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820377228.6U CN208076422U (en) | 2018-03-19 | 2018-03-19 | Detection device based on gamma-ray detection rotary wheel of water turbine crack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820377228.6U CN208076422U (en) | 2018-03-19 | 2018-03-19 | Detection device based on gamma-ray detection rotary wheel of water turbine crack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208076422U true CN208076422U (en) | 2018-11-09 |
Family
ID=64047554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820377228.6U Expired - Fee Related CN208076422U (en) | 2018-03-19 | 2018-03-19 | Detection device based on gamma-ray detection rotary wheel of water turbine crack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208076422U (en) |
-
2018
- 2018-03-19 CN CN201820377228.6U patent/CN208076422U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181109 Termination date: 20200319 |
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| CF01 | Termination of patent right due to non-payment of annual fee |