CN202486104U - System for detecting fir tree type blade roots of turbine - Google Patents
System for detecting fir tree type blade roots of turbine Download PDFInfo
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- CN202486104U CN202486104U CN201220003311XU CN201220003311U CN202486104U CN 202486104 U CN202486104 U CN 202486104U CN 201220003311X U CN201220003311X U CN 201220003311XU CN 201220003311 U CN201220003311 U CN 201220003311U CN 202486104 U CN202486104 U CN 202486104U
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- 238000012360 testing method Methods 0.000 claims description 9
- 230000001276 controlling effect Effects 0.000 claims description 3
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- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
An embodiment of the utility model provides a system for detecting fir tree type blade roots of a turbine. The system for detecting fir tree type blade roots of the turbine comprises a probe and a phased array detector. The system for detecting fir tree type blade roots of the turbine further comprises a scanning frame, a controlling device and a coupling device, wherein the scanning frame is connected with the controlling device and comprises a main body, an assistant guide rail and a probe frame. The probe is installed on the scanning frame through the probe frame. The controlling device is respectively connected with the coupling device and the scanning device. The coupling device is respectively connected with the controlling device and the scanning frame. The phased array detector is respectively connected with the scanning frame and the controlling device. An automatic detection for turbine fir tree type blade roots is achieved through the scanning frame, the controlling device and the coupling device which are arranged in the system for detecting fir tree type blade roots of the turbine. In addition, detecting data are visualized and good in repeatability, defects are convenient to identify, and the repeatability of detecting results is improved.
Description
Technical field
The utility model particularly about the detection technique of turbine blade root, is a kind of system that detects the steam turbine fir-tree root about technical field of nondestructive testing concretely.
Background technology
Requisite operational outfit when steam turbine is power plant's generating.Along with being on the increase of fuel-burning power plant unit project; The blade root of power generator turbine final stage and second last stage blade is adopted more and more (as shown in Figure 1) of side direction assembling fir-tree type structure; Because of the singularity (burying in wheel rim after the installation) of its installation and structure, having only the both sides end face after the assembling is the plane, and all the other expose face and are curved surface; The shoulder that comprises blade root, therefore the detection difficulty to it increases.And steam turbine causes stress to concentrate because the centrifugal force that the blade of high speed rotating produces is easy to root of blade; Through after the operation of certain time limit; Root of blade forms stress fatigue crackle and CC easily, and crackle all produces on the surface of root of blade, and there are major safety risks in the crackle of root of blade; When crack propagation to a certain degree the time, the blade factory building that flies out easily causes the accident.Therefore, the safe operation that steam turbine fir-tree type root of blade is detected to guarantee steam turbine has great importance.
In the prior art, the detection method of fir-tree root generally has dismounting and does not dismantle two kinds in blade.The method that adopts the surface to detect after disassembly method generally disassembles blade is carried out magnetic or infiltration detection to root.Though this kind detection method simple, intuitive has higher detection sensitivity to defective, disassembly process needs the long period; Take maintenance duration; And damage, scratch blade and race in the disassembly process easily, produce new potential safety hazard, cause uncertain consequence.In the thermoelectricity industry; Under the situation of not dismantling blade, only can carry out local magnetic detection or infiltration to the end face that blade root is exposed detects; This kind detection method only can detect end region, makes the detection of this blade root be in the edge of vacuum state, has buried major hidden danger for the safe operation of unit.In addition, the method that also useful in recent years ultrasonic phased array method detects fir-tree root, but this method is used special probe; Adopt hand directly to hold probe and detect, and the turbine blade gap of generating plant is very little, distance has only about 30mm between common two blades; Therefore when adopting hand directly to hold probe to detect, receive the constraint in space bigger, during detection because the people is difficult to hold steadily probe; Can't guarantee the recall rate and the reliability of defective, and the poor repeatability that detects.
The utility model content
The utility model embodiment provides a kind of system that detects the steam turbine fir-tree root; Through scanning frame, control device and the coupling device that is provided with in this system; Realized the robotization of steam turbine fir-tree root is detected; And directly perceived, the good reproducibility of detection data is convenient to the identification to defective, has improved the repeatability of testing result in addition.
The purpose of the utility model is, a kind of system that detects the steam turbine fir-tree root is provided, and comprising: probe, phased array detector; Also comprise: scanning frame, control device and coupling device, wherein, described scanning frame; Be connected with described control device; Comprise: main body, secondary guide rail and probe holder, detection instruction operation and record position information on fir-tree root according to described control device sends are sent to described phased array detector with described positional information; Described probe is installed on the described scanning frame through probe holder, along with relevant detection is carried out in the operation of said scanning frame, and detection information is sent to described phased array detector; Described control device is connected with described coupling device, described scanning frame respectively, sends the detection instruction that detects current fir-tree root to described scanning frame, sends the move instruction that transmits couplant to described coupling device; Described coupling device is connected with described control device, described scanning frame respectively, transmits couplant according to the move instruction of described control device to described scanning frame; Described phased array detector is connected with described scanning frame, described control device respectively, generates the testing result of current steam turbine fir-tree root according to described positional information and detection information.
Wherein, described coupling device comprises water pump, water pipe and pond, to described scanning frame couplant is provided.
Described scanning frame comprises: main body (a), secondary guide rail (b) and described probe holder (c), and wherein, described main body (a) comprising: drive disk assembly (a1), be arranged at the locking member (a2) on the described drive disk assembly (a1) and highly regulate parts (a3); Described drive disk assembly (a1) comprising: fasten the upper rail (a11), middle guide rail (a13) and the lower guideway (a12) that are provided with;
Described locking member (a2) comprising: be arranged at front clamp piece (a21), the back clamp (a22) on the described drive disk assembly (a1) and clamp and regulate handle (a23);
Described height is regulated parts (a3) and being comprised: (a32) supported in the preceding support (a31) and the back that are arranged on the described drive disk assembly (a1).
Described secondary guide rail (b); Fasten setting with the drive disk assembly (a1) in the described main body (a); Comprise: fasten first track (b1) and second track (b2) that are provided with; Be arranged at least one adjuster bar (b3) on described first track (b1), be arranged at described first track (b1), the inboard at least one clamp (b4) of second track (b2), and be arranged at spring (b6) and the screw (b7) on the described clamp;
Described probe holder (c); Fasten setting with the drive disk assembly (a1) in the described main body (a); Comprise: be fixed in and receive load arm (c1) on the drive disk assembly (a1), guide wheel (c2) that engages with drive disk assembly (a1) and magnet (c3), the fixed supporting leg (c5) that connects through supporting leg contiguous block (c4) with adjust supporting leg (c6); Be arranged on the probing shell (c7) between fixed supporting leg (c5) and the adjustment supporting leg (c6), and be arranged on the jackscrew (c8) on the supporting leg contiguous block (c4).
Described main body (a) also comprises: the motor box (a4) that is connected with drive disk assembly (a1), described motor box (a4) set inside has motor.Be provided with gear and chain in the described drive disk assembly (a1), (a4) is connected through shaft coupling with described motor box.Described main body (a) also comprises the scrambler (a5) that is connected with the middle motor of described motor box (a4), the positional information that the record probe moves.Described main body (a) also comprises the sensor that is arranged in the described drive disk assembly (a1), according to the operation of described detection instruction control scanning frame.Described scanning frame also comprises: be arranged at described motor box (a4) and go up, regulate the pilot lamp (a6) that parts (a3) are connected with described height; Be arranged at the interface (a7) on the described motor box (a4).
Described control device comprises: transformer (21), and the power supply (22) that is connected with described transformer (21) is used for to programmable logic controller (PLC) PLC the power supply input being provided; The programmable logic controller (PLC) PLC (23) that is connected with described power supply (22); Be used for sensor with the scanning frame and interact and drive probe with control scanning frame according to predefined path and detect, and send the move instruction that transmits couplant to described coupling device; The relay (24) that is connected with described PLC (23) is used for controlling the connected sum disconnection of said scanning frame motor power.The VSC plate (25) that is connected with described relay (24) is used to control the speed that described scanning frame detects.
The beneficial effect of the utility model is; Through the record of the scrambler in the scanning frame to the positional information of probe, and the probe detection recording of information corresponding to fir-tree root diverse location information, realized the robotization of steam turbine fir-tree root is detected; Broken through the restriction of impeller clearance; Do not receive artificial factor, detect the multiplanar imaging of data, and then obtain testing result directly perceived, good reproducibility.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the steam turbine fir-tree type blade that Fig. 1 mentions for the utility model embodiment;
A kind of structural representation that detects the system of steam turbine fir-tree root that Fig. 2 provides for the utility model embodiment;
Fig. 3 is the structural representation of the coupling device of the utility model embodiment;
The structural representation of main body in the scanning frame that Fig. 4 provides for the utility model embodiment;
The structural representation of secondary guide rail in the scanning frame that Fig. 5 provides for the utility model embodiment;
The structural representation of probe holder in the scanning frame that Fig. 6 provides for the utility model embodiment;
The schematic diagram of the control device that Fig. 7 provides for the utility model embodiment;
Fig. 8 is the structural representation of the hand held controller in the control device in the specific embodiment;
Fig. 9 is the structural representation of the control box in the control device in the specific embodiment.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 2 is a kind of structured flowchart that detects the system of steam turbine fir-tree root that the utility model embodiment provides, and can be known by Fig. 2:
Fir-tree root 100, because the singularity of its structure, therefore technology can't realize its robotization is detected now;
Probe 300 is installed on the described scanning frame 200 through probe holder, along with relevant detection is carried out in the operation of said scanning frame 200, and detection information is sent to described phased array detector 600;
Described control device 400; Be connected with described coupling device 500, described scanning frame 200 respectively; Send the detection instruction that detects current fir-tree root to described scanning frame 200, send the move instruction that transmits couplant to described coupling device 500;
Described coupling device 500 is connected with described control device 400, described scanning frame 200 respectively, transmits couplants according to the move instruction of described control device 400 to described scanning frame 200;
Described phased array detector 600 is connected with described scanning frame 200, described control device 400 respectively, generates the testing result of current steam turbine fir-tree root according to described positional information and detection information.
Fig. 3 is the structural representation of coupling device, can be known by Fig. 3, and described coupling device 500 comprises:
Pond 501 is used to store a certain amount of water;
Those skilled in the art can know that couplant can also be the mineral oil or the cellulosic WS etc. except water.Therefore, the concrete structure of coupling device also can be other modes that are complementary with mineral oil or the cellulosic WS etc., and Fig. 3 is merely the structural representation when couplant is water.
A kind of scanning frame that the utility model embodiment provides mainly comprises: main body (a), secondary guide rail (b) and probe holder (c).Introduce one by one below in conjunction with accompanying drawing.The structural representation of main body (a) in the scanning frame that Fig. 4 provides for the utility model embodiment; Can know that by Fig. 4 described main body (a) comprising: drive disk assembly (a1), be arranged at the locking member (a2) on the described drive disk assembly (a1) and highly regulate parts (a3).Wherein, described drive disk assembly (a1) comprising: fasten the upper rail (a11), middle guide rail (a13) and the lower guideway (a12) that are provided with.In concrete embodiment, upper rail (a11) and lower guideway (a12) in the drive disk assembly (a1) are processed by stainless material, and middle guide rail (a13) is processed by nylon or other materials.
Described locking member (a2) comprising: be arranged at front clamp piece (a21), the back clamp (a22) on the described drive disk assembly (a1) and clamp and regulate handle (a23); Described height is regulated parts (a3) and being comprised: (a32) supported in the preceding support (a31) and the back that are arranged on the described drive disk assembly (a1).Described locking member (a2) and highly regulate the height that parts (a3) are mainly used in control scanning frame body guide rail is locked whole scanning frame, prevents that the scanning frame shakes when detecting, and then influences testing result.Simultaneously, highly regulate also being provided with feeler on the parts, contact when good, the pilot lamp on the main body is bright, has improved efficient and reliability when the scanning frame is placed when detecting.
Except above-mentioned parts, the main body of scanning frame also comprises: the motor box (a4) that is connected with drive disk assembly (a1), described motor box (a4) set inside has motor.Also be provided with gear and chain in the described drive disk assembly (a1), (a4) is connected through shaft coupling with described motor box.Described main body (a) also comprises the scrambler (a5) that is connected with the middle motor of described motor box (a4), the positional information that the record probe moves, C scanning, the D scanning imagery of realization detection data.Described main body (a) also comprises the sensor that is arranged in the described drive disk assembly (a1), according to the operation of described detection instruction control scanning frame.Sensor comprises position transducer and feeler.When each parts of body interior contact when good, it is promptly shinny to be arranged at the pilot lamp (a6) that described motor box (a4) goes up, is connected with described height adjusting parts (a3).Be arranged at the interface (a7) on the described motor box (a4), be used to connect control device.
The structural representation of secondary guide rail in the scanning frame that Fig. 5 provides for the utility model embodiment; Described secondary guide rail (b) with drive disk assembly (a1) the fastening setting in the described main body (a), can be known by Fig. 5; It comprises: fasten first track (b1) and second track (b2) that are provided with; Form by two different arc nylon blocks of curved surface, be arranged at least one adjuster bar (b3) on described first track (b1), be arranged at described first track (b1), the inboard at least one clamp (b4) of second track (b2); Clamp among Fig. 5 has two, is respectively front clamp piece (b4) and back clamp (b5); Back clamp (b5) is provided with spring (b6) and screw (b7), and spring (b6) and screw (b7) are used to compress back clamp (b5).Secondary guide rail is mainly used in probe when the blade outer arc detects the inner arc root defect, through inclination angle and the deflection that jackscrew on the probe holder slides and controls probe in secondary guide rail surface, improves detect stable and repeated.
The structural representation of probe holder in the scanning frame that Fig. 6 provides for the utility model embodiment, described probe holder (c) fastens with drive disk assembly (a1) in the described main body (a) and to be provided with, and is used for clamping probe and couplant and under the drive of main body, moves.Can know that by Fig. 6 it comprises: be fixed in and receive load arm (c1) on the drive disk assembly (a1), be provided with sensor in it, with sensor in the main body location that interacts.Guide wheel (c2) that engages with drive disk assembly (a1) and magnet (c3); Fixed supporting leg (c5) and adjustment supporting leg (c6) through supporting leg contiguous block (c4) connection; Be arranged on the probing shell (c7) between fixed supporting leg (c5) and the adjustment supporting leg (c6), and be arranged on the jackscrew (c8) on the supporting leg contiguous block (c4).
The probe holder that the utility model provides can load dissimilar probes, has very strong versatility.Such as, when the inner arc side of said root of blade is detected, will be installed on the probe holder with detecting the corresponding probe in blade root inner arc side, when detecting other sides, the probe that other are corresponding is installed on the probe holder.
The schematic diagram of the control device that Fig. 7 provides for the utility model embodiment, can know that by Fig. 7 control device comprises:
Transformer (21), the power supply (22) that is connected with described transformer (21) is used for to control device and coupling device the power supply input being provided;
The programmable logic controller (PLC) PLC (23) that is connected with described power supply (22); Be used for sensor with the scanning frame and interact and drive probe with control scanning frame according to predefined path and detect, send the move instruction that transmits couplant to described coupling device;
The relay (24) that is connected with described PLC (23) is used for controlling the connected sum disconnection of said scanning frame motor power.
The VSC plate (25) that is connected with described relay (24) is used to control the speed that described scanning frame detects.
Below in conjunction with concrete embodiment, introduce a kind of system that detects the steam turbine fir-tree root that the utility model provides in detail.In this embodiment, for the ease of practical operation, control device is set to two parts; Hand held controller 10 and control box 20; Wherein, there are isolating transformer, Switching Power Supply, PLC, relay and speed regulation plate in control box inside, and volume is relatively large; But fixed placement when detecting operation, the hand held controller portability uses.Fig. 8 is the structural representation of the hand held controller in the control device in the specific embodiment, and Fig. 9 is the structural representation of the control box in the control device in the specific embodiment.Can know by Fig. 8, Fig. 9; Control box has 4 interfaces, seven pilot lamp, and one receives load arm dismounting switch; Wherein, 201 to 207 be respectively outer arc, inner arc, manually, automatically, in zero point, detection, the pilot lamp of preceding support, 208 to 211 is the interface of power supply, hand held controller, scrambler, water pump, 212 are the dismounting switch of loading and unloading/operation.Install for the ease of the scene; Avoid wrong; The interface of hand held controller 10 has been selected the plug connector of different size respectively for use, and it has 101,102a, 102b totally 3 interfaces, 104,107,108,111 totally 4 SSes and 103,105,106,109,110 totally 5 buttons.Clear point 105, detect 109 buttons when selecting control automatically, advance 106, retreat 110 buttons when selecting manually control, 103 any moment of stop button press motor and all stop operating immediately.101 of hand held controller 10 is connected with the interface (a7) of scanning frame, and 102a, 102b are connected with control box 20.
S1: will pop one's head in one is installed in the probe holder of scanning frame, and the water pipe of water pump is received on the probing shell;
S2: control box is linked to each other with hand held controller, controller is linked to each other with the scanning frame; Control box is linked to each other with the water pump of coupling device, control box is linked to each other with power supply; " scrambler " interface on the control box is linked to each other with phased array inspection instrument;
S3: will pop one's head in links to each other with phased array inspection instrument; Secondary guide rail is installed on the blade, and main body and the probe holder with the scanning frame is installed on the blade again, the bright and affirmation contact good back locking of contact pilot lamp;
S4: " operation/loading and unloading " button of control box is placed " loading and unloading " side; Controller is selected " manually ", and probe holder is placed scanning frame guide rail place, by the controller button that " advances ", stops after probe holder is loaded onto, and " operation/loading and unloading " button with control box places the " RUN " side again;
S5: selection control " automatically ", " outer arc ", water pump choosing " opening " can be selected speed " soon " or " slowly " as required.
S6: in the phased array detector, sector scan is set, can be 40 °～80 ° intervals, the calibration back is preserved and is used.
S7: click " clear point " button; After treating that probe holder is got back to outer arc and detected zero point, phased array inspection instrument preparation for acquiring data click " detection " button; Probe moves to the outer arc endpoint detection under probe holder drives; Phased array inspection instrument detects data according to the position signal acquisition of scrambler simultaneously, preserves data after detection is accomplished, and on instrument or computer, data is carried out interpretation.
S8: " operation/loading and unloading " button of control box is placed " loading and unloading " side, and selection control " manually ", " retreating " are unloaded whole probe holder.
S9: unload secondary guide rail.
S10: will pop one's head in two is installed in the probe holder of scanning frame, and with supporting leg contiguous block Rotate 180 in the probe holder °, the water pipe of water pump is received on the probing shell;
S11: in the phased array detector, sector scan is set, can be 40 °～80 ° intervals, the calibration back is preserved and is used.
S12: click " clear point " button; After treating that probe holder is got back to inner arc and detected zero point, phased array inspection instrument preparation for acquiring data click " detection " button; Probe moves to the inner arc endpoint detection under probe holder drives; Phased array inspection instrument detects data according to the position signal acquisition of scrambler simultaneously, preserves data after detection is accomplished, and on instrument or computer, data is carried out interpretation.
Wherein, probe one can be popped one's head in for linear phase controlled array, can make built-in voussoir; Probe two: can pop one's head in for linear phase controlled array, can make built-in voussoir.
In sum; The useful achievement of the utility model is: a kind of system that detects the steam turbine fir-tree root is provided; Through scanning frame, control device and the coupling device that is provided with in this system, realized the robotization of steam turbine fir-tree root is detected, and directly perceived, the good reproducibility of detection data; Be convenient to identification, improved the repeatability of testing result in addition defective.
The utility model has the advantages that:
1. hold the inaccurate situation of detection that probe causes with hand when creatively fir-tree root being detected according to available technology adopting ultrasonic phased array method; A kind of scanning frame that detects the steam turbine fir-tree root is provided; Through probe holder being set and then having realized dissimilar probe placement is detected, improved the accuracy and the repeatability of testing result on probe holder on the scanning frame.
2. creatively all do not carry out the corresponding problem that causes the poor repeatability of testing result with the positional information of root of blade according to the measurement data that when Pretesting fir-tree type blade, writes down; A kind of scanning frame, control device and coupling device of measuring fir-tree root is provided; Through sensor, scrambler are set in the scanning frame; Running orbit according to the PLC of control device and the sensor in the scanning frame, scrambler control scanning frame; Write down positional information of current blade root and the detection information corresponding, and then realized the tracing and monitoring of detected object with positional information.
Used specific embodiment in the utility model the principle and the embodiment of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model; Simultaneously, for one of ordinary skill in the art, according to the thought of the utility model, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.
Claims (10)
1. system that detects the steam turbine fir-tree root comprises: probe, phased array detector is characterized in that described system also comprises: scanning frame, control device and coupling device,
Wherein, Described scanning frame is connected with described control device, comprising: main body, secondary guide rail and probe holder; Detection instruction operation and record position information on fir-tree root according to described control device sends are sent to described phased array detector with described positional information;
Described probe is installed on the described scanning frame through probe holder, along with relevant detection is carried out in the operation of said scanning frame, and detection information is sent to described phased array detector;
Described control device is connected with described coupling device, described scanning frame respectively, sends the detection instruction that detects current fir-tree root to described scanning frame, sends the move instruction that transmits couplant to described coupling device;
Described coupling device is connected with described control device, described scanning frame respectively, transmits couplant according to the move instruction of described control device to described scanning frame;
Described phased array detector is connected with described scanning frame, described control device respectively, generates the testing result of current steam turbine fir-tree root according to described positional information and detection information.
2. a kind of system that detects the steam turbine fir-tree root according to claim 1 is characterized in that described coupling device comprises water pump, water pipe and pond, to described scanning frame couplant is provided.
3. a kind of system that detects the steam turbine fir-tree root according to claim 1 is characterized in that, described scanning frame comprises: main body (a), secondary guide rail (b) and described probe holder (c),
Wherein, described main body (a) comprising: drive disk assembly (a1), be arranged at the locking member (a2) on the described drive disk assembly (a1) and highly regulate parts (a3);
Described secondary guide rail (b); Fasten setting with the drive disk assembly (a1) in the described main body (a); Comprise: fasten first track (b1) and second track (b2) that are provided with; Be arranged at least one adjuster bar (b3) on described first track (b1), be arranged at described first track (b1), the inboard at least one clamp (b4) of second track (b2), and be arranged at spring (b6) and the screw (b7) on the described clamp;
Described probe holder (c); Fasten setting with the drive disk assembly (a1) in the described main body (a); Comprise: be fixed in and receive load arm (c1) on the drive disk assembly (a1), guide wheel (c2) that engages with drive disk assembly (a1) and magnet (c3), the fixed supporting leg (c5) that connects through supporting leg contiguous block (c4) with adjust supporting leg (c6); Be arranged on the probing shell (c7) between fixed supporting leg (c5) and the adjustment supporting leg (c6), and be arranged on the jackscrew (c8) on the supporting leg contiguous block (c4).
4. a kind of system that detects the steam turbine fir-tree root according to claim 3 is characterized in that:
Described drive disk assembly (a1) comprising: fasten the upper rail (a11), middle guide rail (a13) and the lower guideway (a12) that are provided with;
Described locking member (a2) comprising: be arranged at front clamp piece (a21), the back clamp (a22) on the described drive disk assembly (a1) and clamp and regulate handle (a23);
Described height is regulated parts (a3) and being comprised: (a32) supported in the preceding support (a31) and the back that are arranged on the described drive disk assembly (a1).
5. a kind of system that detects the steam turbine fir-tree root according to claim 3 is characterized in that, described main body (a) also comprises: the motor box (a4) that is connected with drive disk assembly (a1), described motor box (a4) set inside has motor.
6. a kind of system that detects the steam turbine fir-tree root according to claim 3 is characterized in that, is provided with gear and chain in the described drive disk assembly (a1), and (a4) is connected through shaft coupling with described motor box.
7. a kind of system that detects the steam turbine fir-tree root according to claim 3 is characterized in that, described main body (a) also comprises the scrambler (a5) that is connected with the middle motor of described motor box (a4), the positional information that the record probe moves.
8. a kind of system that detects the steam turbine fir-tree root according to claim 3 is characterized in that, described main body (a) also comprises the sensor that is arranged in the described drive disk assembly (a1), according to the operation of described detection instruction control scanning frame.
9. a kind of system that detects the steam turbine fir-tree root according to claim 3 is characterized in that, described scanning frame also comprises:
Being arranged at described motor box (a4) goes up, regulates the pilot lamp (a6) that parts (a3) are connected with described height;
Be arranged at the interface (a7) on the described motor box (a4).
10. a kind of system that detects the steam turbine fir-tree root according to claim 1 is characterized in that described control device comprises:
Transformer (21), the power supply (22) that is connected with described transformer (21) is used for to programmable logic controller (PLC) PLC the power supply input being provided;
The programmable logic controller (PLC) PLC (23) that is connected with described power supply (22); Be used for sensor with the scanning frame and interact and drive probe with control scanning frame according to predefined path and detect, and send the move instruction that transmits couplant to described coupling device;
The relay (24) that is connected with described PLC (23) is used for controlling the connected sum disconnection of said scanning frame motor power;
The VSC plate (25) that is connected with described relay (24) is used to control the speed that described scanning frame detects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220003311XU CN202486104U (en) | 2012-01-04 | 2012-01-04 | System for detecting fir tree type blade roots of turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220003311XU CN202486104U (en) | 2012-01-04 | 2012-01-04 | System for detecting fir tree type blade roots of turbine |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675109A (en) * | 2013-12-18 | 2014-03-26 | 武汉大学 | Coupled system used for contact type detection of variable curvature component and based on ultrasonic phased array technology |
| CN105319276A (en) * | 2015-09-29 | 2016-02-10 | 国家电网公司 | Probe and scanning device for detecting turbine partition plate weld joint ultrasonic phased array |
| CN105445374A (en) * | 2015-12-30 | 2016-03-30 | 中核核电运行管理有限公司 | Ultrasonic phased array detection method for fir type blade roots of nuclear main turbine |
| CN108508092A (en) * | 2018-05-29 | 2018-09-07 | 北京安可为检测科技有限公司 | Wind electricity blade automatic ultrasonic non-destructive testing scanning equipment |
| CN109580785A (en) * | 2017-09-29 | 2019-04-05 | 上海金艺检测技术有限公司 | Scanning tooling and method for turbine blade root defect |
| CN111189918A (en) * | 2020-01-21 | 2020-05-22 | 岭澳核电有限公司 | Ultrasonic detection device, method, equipment and medium for blade root of steam turbine of nuclear power station |
| CN113252330A (en) * | 2021-05-18 | 2021-08-13 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Phased array detection process method for palm tree type blade root of power station steam turbine |
-
2012
- 2012-01-04 CN CN201220003311XU patent/CN202486104U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675109A (en) * | 2013-12-18 | 2014-03-26 | 武汉大学 | Coupled system used for contact type detection of variable curvature component and based on ultrasonic phased array technology |
| CN103675109B (en) * | 2013-12-18 | 2015-11-18 | 武汉大学 | Based on the variable curvature member contact formula detection coupled system of ultrasonic phased array technology |
| CN105319276A (en) * | 2015-09-29 | 2016-02-10 | 国家电网公司 | Probe and scanning device for detecting turbine partition plate weld joint ultrasonic phased array |
| CN105445374A (en) * | 2015-12-30 | 2016-03-30 | 中核核电运行管理有限公司 | Ultrasonic phased array detection method for fir type blade roots of nuclear main turbine |
| CN109580785A (en) * | 2017-09-29 | 2019-04-05 | 上海金艺检测技术有限公司 | Scanning tooling and method for turbine blade root defect |
| CN108508092A (en) * | 2018-05-29 | 2018-09-07 | 北京安可为检测科技有限公司 | Wind electricity blade automatic ultrasonic non-destructive testing scanning equipment |
| CN108508092B (en) * | 2018-05-29 | 2023-09-12 | 北京安可为检测科技有限公司 | Automatic ultrasonic nondestructive testing scanning device for wind power blade |
| CN111189918A (en) * | 2020-01-21 | 2020-05-22 | 岭澳核电有限公司 | Ultrasonic detection device, method, equipment and medium for blade root of steam turbine of nuclear power station |
| CN113252330A (en) * | 2021-05-18 | 2021-08-13 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Phased array detection process method for palm tree type blade root of power station steam turbine |
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