CN109433705A - A kind of gun body rinsed for Steam Generator Support Plate body refuse - Google Patents
A kind of gun body rinsed for Steam Generator Support Plate body refuse Download PDFInfo
- Publication number
- CN109433705A CN109433705A CN201811574972.6A CN201811574972A CN109433705A CN 109433705 A CN109433705 A CN 109433705A CN 201811574972 A CN201811574972 A CN 201811574972A CN 109433705 A CN109433705 A CN 109433705A
- Authority
- CN
- China
- Prior art keywords
- support plate
- guiding device
- pipette tips
- nozzle
- steam generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- 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
Abstract
The gun body technical field that the invention belongs to rinse for Steam Generator Support Plate body refuse, more particularly to a kind of gun body rinsed for Steam Generator Support Plate body refuse, for the secondary side support plate body refuse hydrodynamic cleaning of Steam Generators in NPP, it is proposed a kind of steam generator sluice gun structure, the mud gun can reach the upper surface of support plate, to achieve the purpose that support plate body refuse rinses.It is characterized in that, it includes three flexible guiding device, flexible guiding device joint of head and pipette tips parts；The second rotary flexible shaft equipped with control flexible guiding device joint of head the first rotary flexible shaft turned to and control pipette tips nozzle rotation inside flexible guiding device；It further includes that control pipette tips push away and pull out pushing away for movement and pull out flexibility steel band, which pulls out driving mechanisms control by pushing away；The first high-pressure hose and the second high-pressure hose are connected at pipette tips nozzle, the inlet end of two hoses is connected by high-voltage tube with high-pressure pump.
Description
Technical field
The gun body technical field that the invention belongs to rinse for Steam Generator Support Plate body refuse, and in particular to one kind is used for
The gun body that Steam Generator Support Plate body refuse rinses.
Background technique
Steam generator, abbreviation SG are one of nuclear power plant's key equipments, play the isolation and heat exchange of one, secondary circuit
Effect.Most of SG of nuclear power station uses the structure type of the vertical Natural Circulation of built-in steam-water separator at present.In nuclear power machine
In group normal course of operation, even if carrying out stringent control to secondary circuit water chemistry, it can also be generated not in SG and water supply system
Dissolubility corrosion product.These corrosion products, can be on SG secondary side tube sheet surface, tube bank while being discharged by drainage part
It is deposited in gap and support plate, forms body refuse accumulation, eventually led to the decline of the heat-transfer pipe burn into thermal efficiency and water level shakiness etc. and ask
Topic.
Domestic and international operating experience shows the deposit for periodically removing SG secondary side, can slow down heat-transfer pipe corrosion and rupture
Trend.As the periodical measure of SG secondary side maintenance, body refuse hydrodynamic cleaning, abbreviation S/L, at home and abroad in pressurized-water reactor nuclear power plant
It becomes increasingly popular to be applied.The technology utilizes high-pressure water jet, and the deposit in tube bank is smashed and is rushed to outer ring corridor, leads to
The suction inlet that circulation is driven to suction system is crossed, is sucked out, to achieve the purpose that remove SG secondary side deposit.
Currently, country's SG body refuse hydrodynamic cleaning has been widely used for each overhaul scene, but these flushers
Range is rinsed at present only for SG secondary side tube sheet and flow distribution baffle lower surface, in the first support plate upper surface and supported above
The flushing of plate is still blind area, and the body refuse deposited in support plate still has certain injury to heat-transfer pipe.
Summary of the invention
The present invention is directed to the secondary side support plate body refuse hydrodynamic cleaning of Steam Generators in NPP, proposes a kind of steam generator
Sluice gun structure, the mud gun can reach the upper surface of support plate, to achieve the purpose that support plate body refuse rinses.
The present invention is implemented as follows:
A kind of gun body rinsed for Steam Generator Support Plate body refuse, including flexible guiding device, flexible guiding device
Three parts of joint of head and pipette tips；First turned to inside flexible guiding device equipped with control flexible guiding device joint of head
Second rotary flexible shaft of rotary flexible shaft and control pipette tips nozzle rotation；It further includes that control pipette tips push away and pull out pushing away for movement and pull out flexible steel
Band, the steel band pull out driving mechanisms control by pushing away；It is connected with the first high-pressure hose and the second high-pressure hose at pipette tips nozzle, two
The water inlet end of hose is connected by high-voltage tube with high-pressure pump.
Left nozzle, right nozzle and screw slider mechanism as described above are installed in pipette tips；Left nozzle and right nozzle point
The left and right sides of screw slider mechanism is not set, along the axisymmetrical of pipette tips；Pivoted housing is separately fixed at left nozzle and right nozzle
Outer wall on, positioned at the inside of left nozzle and right nozzle, arc race is offered on pivoted housing, for accommodating screw slider mechanism
The sliding block in outside；When screw slider mechanism moves reciprocatingly under the driving of the second rotary flexible shaft, pass through sliding block and arc race
Above-mentioned movement is changed into the rotation of pivoted housing, to drive the rotation of left nozzle and right nozzle.
It further includes positioning toe and toe reset spring；The lower end of pipette tips, outer diameter is arranged in the positioning toe
Match with the diameter of support plate center piping lane through-hole；Toe reset spring is sleeved on the outer wall of angle toe, lower end and branch
Fagging is in close contact；When carrying out flushing work, high pressure water is sprayed from nozzle, is generated reaction force for toe is positioned and is fixed on branch
In the piping lane through-hole of fagging center, so that the position of pipette tips is fixed during the rinsing process；When stopping output high pressure water, toe is multiple
Position spring is popped up toe is positioned, and pipette tips continue to move to.
Lower end inside the flexible guiding device offers flexible axle and high-pressure hose pilot hole along its length, altogether
There are four, it is respectively used to across the first high-pressure hose, the second high-pressure hose, the first rotary flexible shaft and the second rotary flexible shaft；Soft
Upper end inside property guiding device, which offers to push away along its length, pulls out flexibility steel band pilot hole, for pulling out flexibility steel band across pushing away.
The flexible guiding device two sides are provided with guide rail, for controlling peace of the flexible guiding device in SG hand hole
Dress.
Flexible guiding device joint of head as described above realizes that the first rotary flexible shaft is realized using worm screw using turbine；
By the cooperation of turbine and worm screw, the rotation that the first rotary flexible shaft drives flexible guiding device joint of head is rotated, to realize
Control pipette tips rotation.
Flexible guiding device as described above includes multiple shells and multiple hinges, and two adjacent shells are connected by hinge
It is connected together.
The top cross section of shell is trapezoidal as described above, and the angle of two neighboring shell trapezoidal hypotenuse determines that flexibility is led
The direction rotated to device and angle.
The beneficial effects of the present invention are:
1. the configuration of the present invention is simple, compact dimensions are suitable for a plurality of types of steam generators；
2. sluice gun only needs the i.e. flushable multiple support plates of once mounting；
3. pipette tips use the positioning toe with reset spring, the reaction force generated by water flow in rinsing increases rifle
Head stability；
4. steering and revolving speed by the i.e. controllable nozzle of the rotation of rotary flexible shaft of the control outside SG hand hole, help flushing
Flushing effect is reinforced in the control of process；
5. the design feature for the flexible guiding device that sluice gun uses make during the installation process gun body only can produce one
The deflection in a direction facilitates the installation of sluice gun；
6. the pushing away of pipette tips has used flexibility steel band during pulling out, which still has very strong after the direction of motion changes
Rigidity.
Detailed description of the invention
Fig. 1 is sluice gun overall schematic of the invention；
Fig. 2 is nozzle arrangements schematic diagram of the invention；
Fig. 3 a is the structural schematic diagram of nozzle and pivoted housing of the invention；
Fig. 3 b is the rotating manner schematic diagram of nozzle and pivoted housing of the invention；
Fig. 3 c is the side expanded view of pivoted housing of the invention；
Fig. 4 a is the structural schematic diagram of positioning toe of the invention；
The status diagram of toe is positioned when Fig. 4 b is flushing of the invention；
Fig. 4 c is the movement locus schematic diagram of nozzle of the invention；
Fig. 5 is flexible guiding device schematic cross-section of the invention；
Fig. 6 is flexible guiding device joint of head schematic diagram of the invention；
Fig. 7 is flexible guiding apparatus main body structural schematic diagram of the invention；
Fig. 8 is sluice gun installation process schematic diagram of the invention.
Wherein: 1. push away and pull out driving mechanism, 2. first high-pressure hoses, 3. second high-pressure hoses, 4. high-voltage tubes, 5. first rotations
Flexible axle, 6. second rotary flexible shafts, 7. push away and pull out flexibility steel band, 8. flexible guiding devices, 9. flexible guiding device joint of head, and 10.
Pipette tips, 11. left nozzles, 12. right nozzles, 13. screw slider mechanisms, 14. pivoted housings, 15. races, 16. sliding blocks, 17. positioning toes,
18. support plate center piping lane through-hole, 19. toe reset springs, 20. push away and pull out flexibility steel band pilot hole, 21. flexible axles and high-pressure hose
Pilot hole, 22. guide rails, 23.SG hand hole, 24. shells, 25. hinges, 26. sleeves, 27. support plates.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of gun body rinsed for Steam Generator Support Plate body refuse, including it is flexible guiding device 8, soft
Property guiding device joint of head 9 and 10 3 parts of pipette tips.Equipped with control flexible guiding device head inside flexible guiding device 8
Second rotary flexible shaft 6 of the first rotary flexible shaft 5 and control 10 nozzle of pipette tips rotation that joint 9 turns to.It further includes control pipette tips
10 push away and pull out pushing away for movement and pull out flexibility steel band 7, which pulls out the control of driving mechanism 1 by pushing away.First is connected at 10 nozzle of pipette tips
The water inlet end of high-pressure hose 2 and the second high-pressure hose 3, two hoses is connected by high-voltage tube 4 with high-pressure pump.
As shown in Figures 2 and 3, the left nozzle 11, right nozzle 12 and screw slider mechanism 13 are installed in pipette tips 10
On.Left nozzle 11 and right nozzle 12 are separately positioned on the left and right sides of screw slider mechanism 13, along the axisymmetrical of pipette tips 10.Turn
Set 14 is separately fixed on the outer wall of left nozzle 11 and right nozzle 12, positioned at the inside of left nozzle 11 and right nozzle 12, in pivoted housing
Arc race 15 is offered on 14, for accommodating the sliding block 16 in 13 outside of screw slider mechanism.When screw slider mechanism 13 is
When moving reciprocatingly under the driving of two rotary flexible shafts 6, above-mentioned movement is changed by pivoted housing 14 by sliding block 16 and arc race 15
Rotation, to drive the rotation of left nozzle 11 and right nozzle 12.
As shown in figure 4, the invention also includes positioning toe 17 and toe reset springs 19.The positioning toe 17 is arranged
In the lower end of pipette tips 10, the diameter of outer diameter and support plate center piping lane through-hole 18 matches.Toe reset spring 19 is sleeved on
On the outer wall for positioning toe 17, lower end and support plate are in close contact.When carrying out flushing work, high pressure water is sprayed from nozzle, is produced
Raw reaction force is fixed on toe 17 is positioned in support plate center piping lane through-hole 18, so that the position of pipette tips 10 during the rinsing process
It sets and is fixed.When stopping output high pressure water, toe reset spring 19 is popped up toe 17 is positioned, and pipette tips 10 can continue
It is mobile.
As shown in figure 5, the lower end inside the flexible guiding device 8 offers flexible axle along its length and high pressure is soft
Pipe pilot hole 21, altogether there are four, be respectively used to across the first high-pressure hose 2, the second high-pressure hose 3, the first rotary flexible shaft 5 and the
Two rotary flexible shafts 6.Upper end inside flexible guiding device 8, which offers to push away along its length, pulls out flexibility steel band pilot hole 20, uses
Flexibility steel band 7 is pulled out in passing through to push away.8 two sides of flexible guiding device are provided with guide rail 22, for controlling flexible guiding device 8 in SG
Installation in hand hole 23.
As shown in fig. 6, the flexible guiding device joint of head 9 is realized using turbine, the first rotary flexible shaft 5 uses snail
Bar is realized.By the cooperation of turbine and worm screw, the rotation that the first rotary flexible shaft 5 drives flexible guiding device joint of head 9 is rotated,
To realize that control pipette tips 10 rotate.
As shown in fig. 7, the flexible guiding device 8 includes multiple shells 24 and multiple hinges 25, adjacent two outer
Shell 24 is linked together by hinge 25.
The top cross section of the shell 24 be it is trapezoidal, the angle of two neighboring 24 trapezoidal hypotenuse of shell determines that flexibility is led
The direction rotated to device 8 and angle.
The course of work of the invention is as follows:
Guide rail 22 is installed into inside SG hand hole 23 first, and 22 head of guide rail is made to enter 26 inner wall of sleeve, it then will be soft
Property guiding device 8 along guide rail 22 be sent into steam generator inside, pipette tips 10 pass through sleeve 26 after, can along 22 direction of guide rail to
Upper direction, since the structure of flexible guiding device 8 is designed as only rotating towards single direction, so flexible guiding device 8 exists
The direction of motion will not change after protruding rail 22.After pipette tips 10 arrive at support plate 27, controlled by the first rotary flexible shaft 5
Pipette tips 10 are placed on 27 top of support plate by the worm gear structure of flexible guiding device joint of head 9 processed, are then pulled out by pushing away
Driving mechanism 1 push away pull out flexibility steel band 7 drive pipette tips 10 travel forward, designated position carry out flushing work.
It is explained in detail above in conjunction with implementation method of the embodiment to invention, but invention is not limited to above-mentioned implementation
Example, within the knowledge of a person skilled in the art, can also make without departing from the purpose of the present invention
Various change out.The content that description in the present invention is not described in detail can use the prior art.
Claims (8)
1. a kind of gun body rinsed for Steam Generator Support Plate body refuse, it is characterised in that: it includes flexible guiding device
(8), (10) three parts of flexible guiding device joint of head (9) and pipette tips；It is flexible equipped with control inside flexible guiding device (8)
Second rotary flexible shaft of the first rotary flexible shaft (5) and control pipette tips (10) nozzle rotation that guiding device joint of head (9) turns to
(6)；It further includes that control pipette tips (10) pushes away and pulls out pushing away for movement and pull out flexibility steel band (7), which pulls out driving mechanism (1) control by pushing away
System；It is connected with the first high-pressure hose (2) and the second high-pressure hose (3) at pipette tips (10) nozzle, the water inlet end of two hoses passes through
High-voltage tube (4) is connected with high-pressure pump.
2. the gun body according to claim 1 rinsed for Steam Generator Support Plate body refuse, it is characterised in that: described
Left nozzle (11), right nozzle (12) and screw slider mechanism (13) are installed on pipette tips (10)；Left nozzle (11) and right nozzle
(12) it is separately positioned on the left and right sides of screw slider mechanism (13), the axisymmetrical along pipette tips (10)；Pivoted housing (14) is solid respectively
It is scheduled on the outer wall of left nozzle (11) and right nozzle (12), is located at the inside of left nozzle (11) and right nozzle (12), in pivoted housing
(14) arc race (15) are offered on, for accommodating the sliding block (16) on the outside of screw slider mechanism (13)；When screw slider machine
Structure (13) under the second rotary flexible shaft (6) drive when moving reciprocatingly, by sliding block (16) and arc race (15) by above-mentioned fortune
Turn becomes the rotation of pivoted housing (14), to drive the rotation of left nozzle (11) and right nozzle (12).
3. the gun body according to claim 1 rinsed for Steam Generator Support Plate body refuse, it is characterised in that: it is also wrapped
Include positioning toe (17) and toe reset spring (19)；The positioning toe (17) is arranged in the lower end of pipette tips (10), outside
The diameter of diameter and support plate center piping lane through-hole (18) matches；Toe reset spring (19) is sleeved on the outer of positioning toe (17)
On wall, lower end and support plate are in close contact；When carrying out flushing work, high pressure water is sprayed from nozzle, and generating reaction force will determine
Position toe (17) is fixed in support plate center piping lane through-hole (18), so that the position of pipette tips (10) is consolidated during the rinsing process
It is fixed；When stopping output high pressure water, toe reset spring (19) will position toe (17) and pop up, and pipette tips (10) continue to move to.
4. the gun body according to claim 1 rinsed for Steam Generator Support Plate body refuse, it is characterised in that: described
The internal lower end of flexible guiding device (8) offer flexible axle and high-pressure hose pilot hole (21) along its length, altogether there are four,
It is respectively used to across the first high-pressure hose (2), the second high-pressure hose (3), the first rotary flexible shaft (5) and the second rotary flexible shaft (6)；
It offers to push away along its length in the internal upper end of flexible guiding device (8) and pulls out flexibility steel band pilot hole (20), for across pushing away
Pull out flexibility steel band (7).
5. the gun body according to claim 4 rinsed for Steam Generator Support Plate body refuse, it is characterised in that: described
Flexible guiding device (8) two sides be provided with guide rail (22), for controlling peace of the flexible guiding device (8) in SG hand hole (23)
Dress.
6. the gun body according to claim 1 rinsed for Steam Generator Support Plate body refuse, it is characterised in that: described
Flexible guiding device joint of head (9) realizes that the first rotary flexible shaft (5) is realized using worm screw using turbine；Pass through turbine and snail
The cooperation of bar, rotation the first rotary flexible shaft (5) drives the rotation of flexible guiding device joint of head (9), to realize control rifle
Head (10) rotation.
7. the gun body according to claim 1 rinsed for Steam Generator Support Plate body refuse, it is characterised in that: described
Flexible guiding device (8) includes multiple shells (24) and multiple hinges (25), and two adjacent shells (24) pass through hinge (25)
It links together.
8. the gun body according to claim 7 rinsed for Steam Generator Support Plate body refuse, it is characterised in that: described
The top cross section of shell (24) is trapezoidal, angle decision flexible guiding device (8) of two neighboring shell (24) trapezoidal hypotenuse
The direction of rotation and angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811574972.6A CN109433705B (en) | 2018-12-21 | 2018-12-21 | Gun body for flushing mud residue of steam generator supporting plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811574972.6A CN109433705B (en) | 2018-12-21 | 2018-12-21 | Gun body for flushing mud residue of steam generator supporting plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109433705A true CN109433705A (en) | 2019-03-08 |
| CN109433705B CN109433705B (en) | 2023-09-08 |
Family
ID=65534849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811574972.6A Active CN109433705B (en) | 2018-12-21 | 2018-12-21 | Gun body for flushing mud residue of steam generator supporting plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109433705B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0623365A1 (en) * | 1993-05-06 | 1994-11-09 | Aristide Kaidonis | Spraying device comprising several emitting sources |
| CN2225314Y (en) * | 1995-07-04 | 1996-04-24 | 清华大学 | Apparatus for elastic stick passing through pipe |
| CN1339990A (en) * | 1999-12-16 | 2002-03-13 | 浦城胜 | Method and device for washing drain pipe |
| KR20020032131A (en) * | 2000-10-25 | 2002-05-03 | 최양우 | Equipments for cleaning sluges in vapor generator |
| KR20100057985A (en) * | 2008-11-24 | 2010-06-03 | 한전케이피에스 주식회사 | Cleaning gun |
| US20110030734A1 (en) * | 2009-08-10 | 2011-02-10 | Marschall Matthew S | Rigid lance cleaning system and method therefor |
| CN204470174U (en) * | 2014-12-30 | 2015-07-15 | 中核武汉核电运行技术股份有限公司 | A kind of steam generator body refuse sluice gun locating guide device |
| CN207865361U (en) * | 2017-12-28 | 2018-09-14 | 核动力运行研究所 | A kind of steam generator secondary side tube sheet flexible irrigation device |
| CN209663842U (en) * | 2018-12-21 | 2019-11-22 | 核动力运行研究所 | A kind of gun body rinsed for Steam Generator Support Plate body refuse |
-
2018
- 2018-12-21 CN CN201811574972.6A patent/CN109433705B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0623365A1 (en) * | 1993-05-06 | 1994-11-09 | Aristide Kaidonis | Spraying device comprising several emitting sources |
| CN2225314Y (en) * | 1995-07-04 | 1996-04-24 | 清华大学 | Apparatus for elastic stick passing through pipe |
| CN1339990A (en) * | 1999-12-16 | 2002-03-13 | 浦城胜 | Method and device for washing drain pipe |
| KR20020032131A (en) * | 2000-10-25 | 2002-05-03 | 최양우 | Equipments for cleaning sluges in vapor generator |
| KR20100057985A (en) * | 2008-11-24 | 2010-06-03 | 한전케이피에스 주식회사 | Cleaning gun |
| US20110030734A1 (en) * | 2009-08-10 | 2011-02-10 | Marschall Matthew S | Rigid lance cleaning system and method therefor |
| CN204470174U (en) * | 2014-12-30 | 2015-07-15 | 中核武汉核电运行技术股份有限公司 | A kind of steam generator body refuse sluice gun locating guide device |
| CN207865361U (en) * | 2017-12-28 | 2018-09-14 | 核动力运行研究所 | A kind of steam generator secondary side tube sheet flexible irrigation device |
| CN209663842U (en) * | 2018-12-21 | 2019-11-22 | 核动力运行研究所 | A kind of gun body rinsed for Steam Generator Support Plate body refuse |
Non-Patent Citations (1)
| Title |
|---|
| 刘一博;杨津瑞;王陈帆;舒芝锋;张高剑;: "蒸汽发生器支撑板泥渣冲洗三维动画设计", 设备管理与维修, no. 16, pages 85 - 86 * |
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| Publication number | Publication date |
|---|---|
| CN109433705B (en) | 2023-09-08 |
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