CN100567814C - The steam generator sludge rinse-system that has flexible banding pattern spray gun - Google Patents
The steam generator sludge rinse-system that has flexible banding pattern spray gun Download PDFInfo
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- CN100567814C CN100567814C CNB2007101664207A CN200710166420A CN100567814C CN 100567814 C CN100567814 C CN 100567814C CN B2007101664207 A CNB2007101664207 A CN B2007101664207A CN 200710166420 A CN200710166420 A CN 200710166420A CN 100567814 C CN100567814 C CN 100567814C
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention discloses a kind of steam generator sludge rinse-system that has flexible banding pattern spray gun, it can wash away the sludge in the steam generator that is deposited in heavy water reactor nuclear power plant and can remove impurity from the upper plate of tube sheet by high-pressure spray.According to the present invention, steam generator sludge rinse-system comprises: the driver support lugn and the rail-guided device support lugn that are attached to the hand hole of steam generator; Rail-guided device, it is installed in the elongated rectangular space that is limited to the steam generator middle part by the driver support lugn; The T shape rail that can reverse, its groove by rail-guided device are installed and are had a barrel formula spray nozzle; Flexible banding pattern spray gun, it is inserted in the T shape rail and under the guiding of the crooked guiding mechanism that is installed to T shape rail end crooked 90 °; And lance head, it is installed to the end of flexible banding pattern spray gun and comprises the nozzle end with different spray angles.
Description
Technical field
The present invention relates to a kind of steam generator sludge rinse-system that has flexible banding pattern spray gun.More specifically, the present invention relates to a kind of steam generator sludge rinse-system that has flexible banding pattern spray gun, it can remove the sludge in the steam generator that is deposited in heavy water reactor nuclear power plant and can remove impurity from the upper plate of tube sheet by high-pressure spray.
Background technology
Generally speaking, steam generator is the indispensable structure of nuclear power plant, realizes the primary coolant by the nuclear reactor heating and is installed in heat exchange between the secondary coolant of boundary of the pipe in the steam generator at this.
When steam drive turbine that heat exchange produces, kinetic energy is converted to electric energy.Therefore realized generating.Yet along with nuclear power plant's increase of running time, the pipe of secondary coolant circuit system can be worn.The metallic particles that drops from pipe can accumulate in the steam generator with the form of sludge.And the material that drops from this structure can flow into and be retained in the steam generator the schedule maintenance of nuclear power plant and repair procedures.
The sludge that occurs in the steam generator can be divided into soft sludge and hard sludge.Soft sludge generally accumulates in the upper strata of steam generator and hard sludge accumulates on the tube sheet that steam generator lower floor is provided with.Hard sludge is owing to the high temperature of the sludge on the tube sheet by pipe is formed by sclerosis.
The sludge of assembling has reduced the heat transfer property of the pipe of steam generator, has further also reduced the thermal output efficient of final decision nuclear power plant output.In some overseas nuclear power plants, reported to make the sludge of power plant's output reduction assemble the reason of stopping work for power plant.In addition, because sludge can cause the partial corrosion of steam generator, so need change steam generator continually.This will cause sizable economic loss.
In addition, the impurity that exists on the housing of steam generator can be carried in the circular flow of system water and by with steam generator in the collision of structure can damage this structure.Therefore, generally, nuclear power plant will periodically carry out schedule maintenance to remove sludge and other impurity.
The method that is used to remove the sludge of steam generator comprises that high-pressure spray cleaning, Chemical cleaning, ultrasonic wave clean and mix and clean.Although Chemical cleaning is the most effective, it can corrode pipe.Therefore, in the whole useful life process of steam generator, only can carry out 2-3 time Chemical cleaning.
Because nowadays the potential that ultrasonic wave cleans concentrated and carried out the research and development that ultrasonic wave cleans, but also its cleaning efficiency was not being carried out assessment exactly.Up to now also under the situation without any secure replacement, high-pressure spray is most realistic and best.
The various special tool(s)s that comprise pliers, A-frame, gatherer and magnet can be used for removing sludge.For higher removal efficient, these instruments need be followed the high-pressure spray cleaning.
According to traditional " Sludge lancing system of a nuclear steam generator (nuclear boiler sludge rinse-system) " (application number KR 10-2004-0090110), by the flexible spray gun of banding pattern near the sludge between pipe.Yet banding pattern nut connected system has sagging defective.In addition, because the spray gun CD-ROM drive motor that is installed in the steam generator is exposed under the high radiant, be subjected to the spray gun CD-ROM drive motor of radiant effect often to cause whole system to be shut down.
Summary of the invention
Therefore, consider the problems referred to above and finished the present invention, and the purpose of this invention is to provide a kind of steam generator sludge rinse-system that has flexible banding pattern spray gun, it can be more effective and remove sludge and the impurity of assembling from the tube sheet of steam generator expediently by successfully passing close clearance between pipe.
Another object of the present invention provides a kind of steam generator sludge rinse-system that has flexible banding pattern spray gun, its be equipped with make the operator more easily find, near and remove the instrument of sludge and impurity, and it has the result that monitoring function can easily be checked the sludge removal.
According to the present invention, above-mentioned and other purpose can realize that described steam generator sludge rinse-system comprises by a kind of steam generator sludge rinse-system is provided: the driver support lugn and the rail-guided device support lugn that are attached to the hand hole of steam generator; Rail-guided device, it is installed in the elongated rectangular space of described steam generator middle part qualification by described driver support lugn; The T shape rail that can reverse, its groove by described rail-guided device are installed and are had a barrel formula spray nozzle; Flexible banding pattern spray gun, it is inserted in the described T shape rail and under the guiding of the crooked guiding mechanism that is installed to described T shape rail end crooked 90 °; And lance head, it is installed to the end of described flexible banding pattern spray gun and comprises the nozzle end with different spray angles.
Description of drawings
According to detailed description below in conjunction with accompanying drawing, will be expressly understood above-mentioned and other purpose of the present invention, feature and other advantages more, wherein:
Fig. 1 shows the stereogram of steam generator sludge rinse-system when being installed to steam generator according to having of first embodiment of the invention of flexible banding pattern spray gun;
Fig. 2 shows flowing of secondary coolant in the steam generator of heavy water reactor, and amplifies the bottom part that has shown steam generator;
Fig. 3 is the stereogram that integral body has shown steam generator sludge rinse-system;
Fig. 4 is the stereogram of the driver of steam generator sludge rinse-system;
Fig. 5 is the stereogram of the rail-guided device of steam generator sludge rinse-system;
Fig. 6 is the stereogram of the rail-guided device tensioning device of steam generator sludge rinse-system;
Fig. 7 is the stereogram of the T shape rail of steam generator sludge rinse-system;
Fig. 8 is the stereogram of tensioning device of the T shape rail of steam generator sludge rinse-system;
Fig. 9 shows and is used for barrel structure of formula spray operation in the steam generator sludge rinse-system, also shows the flexible banding pattern spray gun of this system in further detail by view of apparatus; And
Figure 10 is in order to the stereogram of the crooked guiding mechanism that guides the bending of flexible banding pattern spray gun in according to the steam generator sludge rinse-system of embodiment of the present invention.
The specific embodiment
The steam generator sludge rinse-system that has flexible banding pattern spray gun according to an illustrative embodiment of the invention with and the operation will be described in detail with reference to accompanying drawing hereinafter.
Steam generator sludge rinse-system 300---it is the steam generator sludge rinse-system 300 that comprises flexible banding pattern spray gun type---comprises the rail-guided device 500 that is installed in the steam generator 200, and particularly its forms that are installed in steam generator 200 middle formation are the no tube passage zone in elongated rectangular space.Rail-guided device 500 has T-slot 503.Steam generator 200 comprises the less relatively hand hole 201 and 202 that faces with each other.Steam generator sludge rinse-system 300 also comprises T shape rail 700 and flexible banding pattern spray gun 900, and T shape rail 700 comprises the protuberance 702 with T shape cross section and carries out bucket formula spray operation.Flexible banding pattern spray gun 900 comprises: endoscope camera 901; Air feed circuit 902; Impurity removal instrument 903; The nozzle end 904,905,906 and 907 of inject high pressure water; And the high-pressure hose 909 that is connected with 907 with each nozzle end 904,905,906.Steam generator sludge rinse-system 300 comprises that also being respectively installed to hand hole 201 and 202 supports the driver support lugn 301 and the rail-guided device support lugns 302 of steam generator sludge rinse-system 300 with rotary way.
Rail-guided device support lugn 302 is installed to hand hole 202 securely by six column bolts (not shown) and six stud bolt holes 306.And rail-guided device support lugn 302 comprises the bearing bracket stand 308 with the end coupler 304 of rotary way supporting track guider 500.
The rail-guided device tensioning device 501 that bolt is connected to rail-guided device 500 is delivered to rail-guided device 500 with rotatory force from first servomotor 402, and has the cable tensioner lever 601 of tensioning tension force cable 504.
Rail-guided device 500 is for having the rod that semi-circular cross-section comprises T-slot 503 simultaneously.Rail-guided device 500 is made up of three joints 502.If necessary, rail-guided device 500 can be by forming more than three joints.Because each joint 502 has assembling pin 505 in its end, so T-slot 503 can keep the state that aligns.When tensioner lever 601 tensile cables 504, joint 502 can be with the form of integral stem by strong bonded.
Identical with the pattern of rail-guided device 500, comprise that the T shape rail 700 of protuberance 702 comprises assembling pin 705, tension force cable 704 and tensioner lever 801, make that the joint 701 of T shape rail 700 can be with the form quilt combination securely of integral stem.In addition, owing to be formed with tooth bar 703 on the protuberance 702, T shape rail 700 can slide along T-slot 503 front and back of rail-guided device 500.Also comprise rectangular opening 311 in the T shape rail 700, flexible banding pattern spray gun 900 can extend by rectangular opening 311.A plurality of barrels of formula spray nozzles 908 are configured on the T shape rail 700 spraying from a large amount of water under high pressures of high-pressure hose 407 supplies.
Flexible banding pattern spray gun 900 is by lamination and handle the polyurethane layer and constitute, and is therefore vertical crooked limited and transverse curvature is flexible.Flexible banding pattern spray gun 900 comprises: the high-pressure hose 900 that especially has very thin diameter; Nozzle end 904,905,906 and 907; In order to check the endoscope camera 901 of steam generator 200 inside; In order to obtain the air feed circuit 902 of picture rich in detail by the impurity of removing endoscope camera 901 camera lenses; And in order to remove the Impurity removal instrument 903 of detected impurity.
Fig. 2 shows flowing of secondary coolant in the steam generator, and amplifies the top part that has shown the tube sheet that is installed to steam generator bottom part, and at this, flow of coolant is relatively slow.Be included in the top part that metal sludge in the secondary coolant generally accumulates in tube sheet.Therefore, steam generator sludge rinse-system 300 is installed in this position to remove the metal sludge.
Fig. 1 shows the steam generator sludge rinse-system in the no tube passage zone that forms on the tube sheet that is installed to the part setting of steam generator bottom.
Referring to figs. 1 through Fig. 4, for steam generator sludge rinse-system 300 is installed, at first, the rail-guided device support lugn 302 that will engage with bearing bracket stand 308 by column bolt and through hole 306 is fastened to the hand hole 202 of steam generator 200.First servomotor 402 that comprises the gear 404 of the encoder 401 that obtains the information of reversing, the gearhead 403 that increases motor torque and transmission moment of torsion arrives driver support lugn 301 by bolting.Driver support lugn 301 is fastened to the hand hole 201 of steam generator 200 by column bolt.
As shown in Figure 3, the end coupler 304 that is used for rail-guided device 500 is connected to the final section 502 of rail-guided device 500, and rail-guided device tensioning device 501 is connected to first segment 502.All joints 502 of rail-guided device 500 utilize assembling pin 505 and corresponding pin-and-hole alignment.Next, tension force cable 504 makes the joint 502 of rail-guided device 500 with the form combination securely of integral stem by tensioner lever 601 tension.And rail-guided device support lugn 302 is fastened to the end coupler 304 of the rail-guided device 500 that fits into driver support lugn 301.The bearing bracket stand 406 of driver support lugn 301 is fastened to rail-guided device tensioning device 501.Therefore, can realize reposefully reversing by bearing.
With reference to Fig. 4, after second servomotor 417 that comprises encoder 418 and gearhead 416 was installed to tooth bar motor field frame 415, tooth bar motor field frame 415 is fastened to rail-guided device tensioning device 501 by screw 602 made it along with rail-guided device 500 rotates.
Crooked guiding mechanism 1000 (Figure 10) is fastened to the final section 701 of T shape rail 700 by bolt hole 1001.The T shape rail tensioning device 803 that is installed together with tensioner lever 801 is fixed to the final section 701 of T shape rail 700 by bolt hole 804.All joints 701 of T shape rail 700 utilize 705 alignment of assembling pin and by tensioner lever 801 tensile cables 704 and with the form combination securely of integral stem.
Behind assembling T shape rail 700, a pair of the 3rd servomotor 412 that respectively comprises encoder 410, gearhead 413 and roller 414 is installed to roller motor field frame 409.Roller motor field frame 409 is fixed to T shape rail tensioning device 803 by screw 802 and makes that roller 414 rotates with roller motor field frame 409 when T shape rail 700 rotates.
As shown in Figure 9, flexible banding pattern spray gun 900 inserts in the rectangular opening 311 of T shape rails 700 up to exposing lance head 910.Herein, the distance between the axle of roller 414 need suitably be regulated.Therefore, roller motor field frame 409 comprises and is designed to have the screw of tolerance suitably to regulate the distance between the motor reel.Flexible banding pattern spray gun 900 inserts later in distance adjustment.
The T shape rail 700 that inserts flexible banding pattern spray gun 900 is inserted in the hand hole 201 of steam generator 200, make protuberance 702 be coupled in the T-slot 503 of rail-guided device 500 with T shape cross section.Next, the tooth bar 709 of T shape rail 700 meshes with the spur gear 303 of the axle that is fixed to second servomotor 417, makes T shape rail 700 to move along T-slot 503 front and back of rail-guided device 500 are linear.
The operation of steam generator sludge rinse-system 300 will be described now in further detail.
In the steam generator 200 that driver support lugn 301 is installed, suppose that first row refer to the row of being arranged to from hand hole 201 pipe farthest, if last of six bucket formula spray nozzles 908 of T shape rail 700 is arranged between first row and the secondary series, then a bucket formula spray nozzle 908 is arranged on the mode between each pipe row and is: each barrel formula spray nozzle 908 is arranged between the adjacent column.
Supply a large amount of water under high pressures and pass through 908 ejections of bucket formula spray nozzle.Herein, bucket formula spray nozzle 908 utilizes first servomotor 402 to tilt.Go out the metal sludge from the annular space of steam generator 200 inside.After carrying out this step at least three times, T shape rail 700 rotates 180 ° of sludges with the opposition side of going out pipe by first servomotor 402.
When finish first row and secondary series between bucket formula spray operation the time, drive second servomotor 417.After with T shape rail 700 displacements three column distances, repeat bucket formula spray operation.By this way, by moving T shape rail 700 with three column distances till last row are finished barrel formula spray operation.
Because said process can be carried out by simply repeating, and can make this process automation so only need the operator just to monitor.Certainly, the operator can manually carry out this process.
After finishing barrel formula spray operation, the lance head 910 of the flexible banding pattern spray gun 900 of Fig. 9 is moved back to the centre of first row and secondary series.Between first row and secondary series, apply high-pressure spray by nozzle end 905, therefore get on except sludge from pipe from the nozzle end 904 of lance head 910 oblique sensings and sensing forward.
Then, drive the roller 414 of parallel installation by the 3rd servomotor 412.Flexible banding pattern spray gun 900 utilizes the frictional force of roller 414 to be advanced in the T shape rail 700.Then, the gap while that flexible banding pattern spray gun 900 is introduced between the pipe is crooked under the guiding in the spray gun path 1002 of the crooked guiding mechanism 1000 that is installed in T shape rail 700 ends, makes lance head 910 can enter between first row and the secondary series.
More specifically, before entering between first row and the secondary series, lance head 910 produces high-pressure spray by the nozzle end 904,905,906 and 907 that is installed to lance head 910.Accumulate in sludge on the pipe by prior removal and prevented that lance head 910 from being lived by pipe clamp.
Especially, the nozzle end 905 of Zhi Xianging has been removed the sludge of the pipe side between the row forward, the nozzle end 904 of oblique sensing has been removed the sludge on the pipe inclined-plane, and up and the nozzle end of pointing to down 906 removed sludge on the tube sheet that accumulates in steam generator 200.
When finishing the flushing of whole pipes, lance head 910 is moved back between first row and the secondary series to check and to remove impurity.
The endoscope camera 901 that is installed to lance head 910 is used for access tube.Air supply pipe 902 blows away the moisture on the camera lens of endoscope camera 901 to guarantee the reliability of camera lens.Therefore, endoscope camera 901 is carried out with guaranteed clear view and is checked.
When being checked through any impurity, the position of impurity and type can be checked through and therefore use suitable Impurity removal instrument 903 to remove impurity.Usually, replaceable use comprises various tools such as pliers, A-frame, gatherer and magnet.When Impurity removal instrument 903 is difficult to remove impurity, the annular space of impurity from pipe washed away thereby can apply high-pressure spray forward by the nozzle end of pointing to 905.Top process repeats through all pipe row.
As mentioned above, can install by the hand hole less than 63mm of steam generator according to the steam generator sludge rinse-system that has a flexible banding pattern spray gun according to the present invention, and can be by removing sludge effectively less than the gap of 5mm and with high pressure water jets directive sludge between the pipe of flexible banding pattern spray gun being put into steam generator.In addition, steam generator sludge rinse-system can utilize the various special tool(s)s that are installed to lance head to remove impurity between pipe.
Because according to the present invention, the servomotor of supply driving force all is arranged on the outside of steam generator, so be installed in the steam generator with servomotor and the conventional art that is exposed to high radiant is compared and can be reduced fault.
In addition, according to the present invention, the different angles that are used for the nozzle end of high-pressure spray make jet along inclined direction to spray.Owing to before flexible banding pattern spray gun moves on between pipe, removed sludge, be stuck between pipe so can prevent flexible banding pattern spray gun by high-pressure spray.And the nozzle end of sideward directed can be removed the sludge of pipe rear side, and conventional art can not be removed the sludge of rear side.Up and nozzle end down can remove the sludge that accumulates on the tube sheet.Therefore, flush efficiency improves greatly.
Though preferred implementation of the present invention purpose as an illustration is disclosed, those skilled in the art is to be understood that can make multiple remodeling, increase and alternative under the situation that does not deviate from the disclosed scope and spirit of the present invention of claims.
Claims (12)
1. steam generator sludge rinse-system comprises:
Be attached to the driver support lugn and the rail-guided device support lugn of the hand hole of steam generator;
Rail-guided device, it is installed in the elongated rectangular space that is limited to described steam generator middle part by described driver support lugn;
The T shape rail that can reverse, its groove by described rail-guided device are installed and are had a barrel formula spray nozzle;
Flexible banding pattern spray gun, it is inserted in the described T shape rail and under the guiding of the crooked guiding mechanism that is installed to described T shape rail end crooked 90 °; And
Lance head, it is installed to the end of described flexible banding pattern spray gun and comprises the nozzle end with different spray angles.
2. steam generator sludge rinse-system according to claim 1, wherein, described rail-guided device support lugn is attached to one of described hand hole of being positioned on the opposite side that inserts described rail-guided device supporting the end coupler of described rail-guided device, and described rail-guided device support lugn comprises the bearing bracket stand that helps described rail-guided device steadily to reverse.
3. steam generator sludge rinse-system according to claim 1, wherein, described driver support lugn is attached to and is positioned at one of described hand hole that inserts on the described rail-guided device side, also comprises:
First servomotor, its supply are used for the driving force that described rail-guided device reverses; And
Bearing bracket stand, thus it is installed to described driver support lugn with rotary way supporting track guider tensioning device.
4. steam generator sludge rinse-system according to claim 3, wherein, described rail-guided device can reverse and by having T-slot and can utilize assembling pin three joints connected to one another to form at least, and described rail-guided device comprises that tension force cable and rail-guided device tensioning device make the described energy-conservation form that reaches with integral stem can be moved back and forth on described steam generator neutral line ground by strong bonded and described T shape rail.
5. steam generator sludge rinse-system according to claim 4, wherein, described rail-guided device tensioning device is connected to the final section of described T shape rail, and comprises:
Gear, it is in order to transmit the driving force of described first servomotor;
Along the groove that the mobile route of described tension force cable forms, it is in order to prevent other parts of described tension force cable overslaugh; And
Be connected to the tensioner lever of described tension force cable, it is in order to firmly to keep the integrality of described rail-guided device by straining described tension force cable.
6. steam generator sludge rinse-system according to claim 5, wherein, thereby described T shape rail form by three or more joints and can utilize the form combination securely of assembling pin, tension force cable and T shape rail tensioning device with integral stem, and comprise:
T shape protuberance;
Tooth bar, its upper surface that is formed on described T shape protuberance is to receive driving force and therefore described T shape rail to be moved back and forth linearly along described T-slot by second servomotor of spur gear from be installed to the tooth bar motor field frame;
Groove, it is formed in the T shape rail and has rectangular cross section, and the driving force that described groove allows flexible banding pattern spray gun to be delivered to described flexible banding pattern spray gun according to the roller of the 3rd servomotor by being installed to the roller motor field frame is carried out and is moved back and forth;
Crooked guiding mechanism, it is formed in the first segment of described T shape rail to guide crooked 90 ° of described flexible banding pattern spray gun.
7. steam generator sludge rinse-system according to claim 6, wherein, described T shape rail tensioning device is connected to the final section of described T shape rail, and comprises:
Along the groove that the mobile route of described tension force cable forms, it is in order to prevent other parts of described tension force cable overslaugh; And
Be connected to the tensioner lever of described tension force cable, it is in order to firmly to keep the integrality of described rail-guided device by straining described tension force cable.
8. steam generator sludge rinse-system according to claim 7, wherein, crooked 90 ° of the flexible banding pattern spray gun that described crooked guiding mechanism is installed to described T shape rail by bolt hole final section stretches out from described T shape rail with guiding, and described crooked guiding mechanism has the bigger size of square-section groove than the described T shape rail in the path that is used as described flexible banding pattern spray gun, blocks to prevent described lance head.
9. steam generator sludge rinse-system according to claim 8, wherein, described second servomotor be installed to the tooth bar motor field frame and comprise encoder, gearhead and be installed to second servomotor axle and with the spur gear of the tooth bar of T shape rail engagement, so that linear movement is converted into rotational motion, and described tooth bar motor field frame by bolted to described rail-guided device tensioning device being reversed according to reversing of described rail-guided device, thereby keep engagement between described spur gear and the described tooth bar.
10. steam generator sludge rinse-system according to claim 9, wherein, described roller motor field frame has and is used for two capacity that respectively have the servomotor of encoder and gearhead, described roller motor field frame comprises the bolt hole of fixing described servomotor, described bolt hole has the tolerance that is used to regulate distance between two rollers that are respectively fixed to two servo-electric arbors, and described roller motor field frame is fixed to described T shape rail tensioning device to reverse with described T shape rail.
11. steam generator sludge rinse-system according to claim 10, wherein, it is flexible thereby but described flexible banding pattern spray gun constitutes vertical crooked limited transverse curvature by lamination and processing polyurethane layer, therefore the crooked guiding mechanism by described T shape rail can be easily crooked, and described flexible banding pattern spray gun comprises Impurity removal instrument, air feed circuit, endoscope cable and the cable with very thin high-pressure hose.
12. steam generator sludge rinse-system according to claim 11, wherein, described lance head comprises:
Endoscope camera, it is in order to check the impurity in the described steam generator;
The air feed circuit, it is inserted in the described flexible banding pattern spray gun and is suitable for removing impurity to guarantee the clear view of described camera from the camera lens of described endoscope camera;
Nozzle end, it links to each other with inject high pressure water with described high-pressure hose; And
Be used to remove the general tool of impurity,
Described nozzle end comprises: oblique nozzle end, in order to clean the access path of described lance head; And nozzle end down, accumulate in sludge on the tube sheet of described steam generator in order to removal up; The side direction nozzle end accumulates in the sludge of managing rear side in order to removal; And nozzle end forward, accumulate in the sludge of managing the side in order to removal; And the general tool that is used to remove impurity.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020060106529A KR100820236B1 (en) | 2006-10-31 | 2006-10-31 | Steam generator sludge lancing system with flexible inter-tube lance |
| KR1020060106529 | 2006-10-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101196291A CN101196291A (en) | 2008-06-11 |
| CN100567814C true CN100567814C (en) | 2009-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101664207A Active CN100567814C (en) | 2006-10-31 | 2007-10-31 | The steam generator sludge rinse-system that has flexible banding pattern spray gun |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100820236B1 (en) |
| CN (1) | CN100567814C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100970436B1 (en) | 2008-09-19 | 2010-07-15 | 한국전력공사 | Partial Inter-tube lancing apparatus with hydraulic drive for steam generator in nudear plant |
| KR101103820B1 (en) * | 2009-09-18 | 2012-01-06 | 한전케이피에스 주식회사 | Dual type equipment for water jet cleaning on the top of the tube sheet of steam generator in nuclear power plant |
| FR2961003B1 (en) * | 2010-06-03 | 2015-10-30 | Sra Savac | GUIDING DEVICE FOR FLEXIBLE LANCE |
| KR200465557Y1 (en) | 2011-07-21 | 2013-02-25 | 한전케이피에스 주식회사 | Removing device for foreign material in equipment |
| DE102013101656B4 (en) * | 2013-02-20 | 2015-04-16 | Areva Gmbh | Lance for removing deposits adhering to the tube bottom of a steam generator |
| CN107175228A (en) * | 2016-03-10 | 2017-09-19 | 核动力运行研究所 | Steam generator secondary side the first supporting plate lower surface hydrodynamic cleaning guider |
| CN105927964A (en) * | 2016-05-31 | 2016-09-07 | 芜湖鸣人热能设备有限公司 | Washing device of boiler |
| CN107152886B (en) * | 2017-05-03 | 2019-01-08 | 苏州热工研究院有限公司 | A kind of steam generator full section formula cleaning device and cleaning method |
| CN109973986A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | One kind being used for steam generator secondary side hydrodynamic cleaning device |
| CN109967278B (en) * | 2017-12-28 | 2024-05-10 | 核动力运行研究所 | Flexible mud residue flushing gun body structure of secondary side tube plate of steam generator |
| CN109973988B (en) * | 2017-12-28 | 2024-02-09 | 核动力运行研究所 | Be used for steam generator secondary side tube sheet flexible mud sediment to wash rotary device |
| CN110296632A (en) * | 2018-03-21 | 2019-10-01 | 国核电站运行服务技术有限公司 | The cleaning device of steam generator |
| CN114353050A (en) * | 2021-12-28 | 2022-04-15 | 核动力运行研究所 | Flexible washing unit suitable for steam generator secondary side tube sheet mud sediment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5036871A (en) * | 1989-02-22 | 1991-08-06 | Electric Power Research Institute, Inc. | Flexible lance and drive system |
| JP3188161B2 (en) * | 1995-09-27 | 2001-07-16 | 三菱重工業株式会社 | Vertical steam generator cleaning device and telescopic arm therefor |
| JP3664882B2 (en) * | 1998-07-30 | 2005-06-29 | 三菱重工業株式会社 | Scale remover for heat exchanger |
| KR100384234B1 (en) * | 2000-10-25 | 2003-05-16 | 한국수력원자력 주식회사 | Equipments for cleaning sluges in vapor generator |
| KR100431560B1 (en) * | 2001-10-11 | 2004-05-17 | 한국전력공사 | Sludge Lancing System of Steam Generator |
| KR100497972B1 (en) * | 2004-11-06 | 2005-07-01 | 한국전력공사 | Sludge lancing system of nuclear steam generator |
-
2006
- 2006-10-31 KR KR1020060106529A patent/KR100820236B1/en active IP Right Grant
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2007
- 2007-10-31 CN CNB2007101664207A patent/CN100567814C/en active Active
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| CN101196291A (en) | 2008-06-11 |
| KR100820236B1 (en) | 2008-04-08 |
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