CN109433704A - A kind of steam generator sluice gun containing positioning compensation structure between pipe - Google Patents
A kind of steam generator sluice gun containing positioning compensation structure between pipe Download PDFInfo
- Publication number
- CN109433704A CN109433704A CN201811573619.6A CN201811573619A CN109433704A CN 109433704 A CN109433704 A CN 109433704A CN 201811573619 A CN201811573619 A CN 201811573619A CN 109433704 A CN109433704 A CN 109433704A
- Authority
- CN
- China
- Prior art keywords
- pipe
- pivoted housing
- steam generator
- gun
- compensation structure
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 102000010637 Aquaporins Human genes 0.000 claims abstract description 14
- 108010063290 Aquaporins Proteins 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims abstract description 4
- 108091006146 Channels Proteins 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000000717 retained effect Effects 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 238000011010 flushing procedure Methods 0.000 abstract description 5
- 239000010802 sludge Substances 0.000 abstract description 2
- 102000011899 Aquaporin 2 Human genes 0.000 description 5
- 108010036221 Aquaporin 2 Proteins 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 206010016825 Flushing Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000037081 physical activity Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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
Landscapes
- Nozzles (AREA)
Abstract
The invention belongs to Steam Generators in NPP service technique fields, more particularly to a kind of steam generator sluice gun containing positioning compensation structure between pipe, for location requirement between the pipe of Steam Generators in NPP secondary side tube sheet body refuse hydraulic flushing gun, it is proposed a kind of steam generator sluice gun containing positioning compensation structure between pipe, the mud gun can eliminate position error by the positioning compensation structure of itself within the scope of position error between certain pipe, ensure to rinse water jet to be accurately aimed between pipe, guarantees flushing effect.It is characterized in that, it includes rotary drive mechanism, high pressure aquaporin, spring, sealing ring, gun body, pivoted housing, nozzle and locating piece.The configuration of the present invention is simple, compact dimensions, suitable for a plurality of types of steam generators, reduce the installation and kinematic accuracy requirement of sluice gun itself, reduce the cost of designing and developing of sluice gun, the mentality of designing and dependency structure of sluice gun structure are equally applicable to other similar rigid sludge flusher.
Description
Technical field
The invention belongs to Steam Generators in NPP service technique fields, and in particular to one kind contains positioning compensation knot between pipe
The steam generator sluice gun of structure.
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 in the secondary side tube sheet surface SG and pipe while being discharged by drainage part
The problems such as beam deposits in gap, forms body refuse accumulation, eventually leads to the decline of the heat-transfer pipe burn into thermal efficiency and unstable water level.
Domestic and international operating experience shows the deposit for periodically removing tube sheet upper surface, can slow down heat-transfer pipe corrosion and rupture
Trend.As the periodical measure of SG secondary side maintenance, tube sheet body refuse hydrodynamic cleaning at home and abroad in pressurized-water reactor nuclear power plant more
To be more generally applied.The technology utilizes high-pressure water jet, and the deposit in tube bank is smashed and is rushed to outer ring corridor, is passed through
Circulation is driven to the suction inlet of suction system, is sucked out, to achieve the purpose that remove deposit on SG secondary side tube sheet.
Although currently, domestic since the significance and necessity of SG tube sheet body refuse hydrodynamic cleaning have had some flushings to fill
Set investment practical application, but these flushers still remain some problems in application process at the scene, it is fixed especially between pipe
Position aspect, it is more demanding to the installation and kinematic accuracy of equipment.
Summary of the invention
The present invention is proposed for location requirement between the pipe of Steam Generators in NPP secondary side tube sheet body refuse hydraulic flushing gun
A kind of steam generator sluice gun containing positioning compensation structure between pipe, the mud gun is between certain pipe within the scope of position error
Position error can be eliminated by the positioning compensation structure of itself, it is ensured that rinse water jet and be accurately aimed between pipe, guarantee to rinse effect
Fruit.
The present invention is implemented as follows:
A kind of steam generator sluice gun containing positioning compensation structure between pipe, including rotary drive mechanism, high pressure water are logical
Road, spring, sealing ring, gun body, pivoted housing, nozzle and locating piece；Rotary drive mechanism is fixed on the left end of pivoted housing, turns for driving
The rotation of set；The left end of gun body is arranged in high pressure aquaporin, for being passed through high pressure water；Spring is arranged on the outer wall of pivoted housing, with
Gun body is in close contact, for constraining pivoted housing；Sealing ring is arranged on the contact surface of gun body and pivoted housing, for realizing close
Envelope；Gun body is used to provide support and inner space to lance body structure；The both ends of pivoted housing and gun body activity link, axially movable,
Inside is connected with high pressure aquaporin；Pivoted housing is used for nozzle conveying high-pressure water and drives the rotation of nozzle and locating piece；Nozzle
It is mounted on pivoted housing, is used for heat transfer pipe inspection high pressure water；Locating piece is mounted on the outer wall of pivoted housing, for compensating the pipe of gun body
Between position error.
Rotary drive mechanism generally cylindrical as described above, right end fluting, for the fixed company in left end with pivoted housing
It connects；Left end is connect with driving device.
High pressure aquaporin generally inverted "L" shape, left end as described above is connect with high-pressure hydraulic pump, the inside of lower end and pivoted housing
It is connected.
Spring as described above altogether there are two, be separately positioned on the pivoted housing outer wall between rotary drive mechanism and gun body with
It is in compressive state and on the pivoted housing outer wall between gun body and pivoted housing.
There are two sealing ring as described above is total, it is separately positioned on connecing between the gun body and pivoted housing of high pressure aquaporin two sides
In contacting surface.
Gun body generally cylindrical as described above, cross section are " F " shape, and left part notch is for accommodating rotary driving machine
Structure, right part notch is for accommodating pivoted housing.
The generally hollow cylindrical of pivoted housing as described above, inside are provided with water transport channel along its length；Water delivery
The left and right both ends in channel are shut, and left part is connected with high pressure aquaporin, and right part is connected with the inside of nozzle.
Nozzle as described above shares multiple, sets gradually along pivoted housing length direction, between two adjacent nozzles between
Every equal, match at a distance from gap between the pipe between two adjacent heat-transfer pipes.
Locating piece as described above is generally hook-shaped, and the retained part on top is mounted on the outer wall of pivoted housing, and lower end connects
Contacting surface is provided with circular arc chamfering, is in contact for the outer wall with heat-transfer pipe；Locating piece share it is multiple, with nozzle correspond；
By contact of the positioning block bottom with heat-transfer pipe in rotation, the compensation for position error between pipe is realized.
Driving mechanism, spring, gun body, pivoted housing, nozzle and locating piece as described above are all made of stainless steel material and are made, institute
The sealing ring stated is made of rubber material.
The beneficial effects of the present invention are:
The configuration of the present invention is simple, compact dimensions are suitable for a plurality of types of steam generators；Present invention reduces sluice guns
The installation of itself and kinematic accuracy requirement, reduce sluice gun designs and develops cost；The design of sluice gun structure of the invention
Thinking and dependency structure are equally applicable to other similar rigid sludge flusher.
Detailed description of the invention
Fig. 1 is lance body structure schematic diagram of the invention；
Fig. 2 a is the receiving state schematic diagram of positioning device between pipe of the invention；
Fig. 2 b is the working state schematic representation of positioning device between pipe of the invention；
Fig. 3 is locating piece schematic diagram of the invention.
Wherein: 1. rotary drive mechanisms, 2. high pressure aquaporins, 3. springs, 4. sealing rings, 5. gun bodies, 6. pivoted housings, 7. sprays
Mouth, 8. locating pieces, 9. heat-transfer pipes.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of steam generator sluice gun containing positioning compensation structure between pipe, including rotary drive mechanism
1, high pressure aquaporin 2, spring 3, sealing ring 4, gun body 5, pivoted housing 6, nozzle 7 and locating piece 8.Rotary drive mechanism 1, which is fixed on, to be turned
The left end of set 6, for driving the rotation of pivoted housing 6.The left end of gun body 5 is arranged in high pressure aquaporin 2, for being passed through high pressure water.Bullet
Spring 3 is arranged on the outer wall of pivoted housing 6, is in close contact with gun body 5, for constraining pivoted housing 6.Sealing ring 4 is arranged in gun body 5
On the contact surface of pivoted housing 6, for realizing sealing.Gun body 5 is used to provide support and inner space to lance body structure.Pivoted housing 6
Both ends and 5 activity of gun body link, can axially movable, and inside is connected with high pressure aquaporin 2.Pivoted housing 6 is used for defeated to nozzle 7
It send high pressure water and drives the rotation of nozzle 7 and locating piece 8.Nozzle 7 is mounted on pivoted housing 6, for spraying high pressure to heat-transfer pipe 9
Water.Locating piece 8 is mounted on the outer wall of pivoted housing 6, position error between the pipe for compensating gun body 5.
The generally cylindrical of rotary drive mechanism 1, right end fluting, for being fixedly connected with the left end of pivoted housing 6；
Left end is connect with driving device.
The generally inverted "L" shape of high pressure aquaporin 2, left end are connect with high-pressure hydraulic pump, the inside phase of lower end and pivoted housing 6
Connection.
The spring 3 altogether there are two, be separately positioned on the pivoted housing outer wall between rotary drive mechanism 1 and gun body 5 with
It is in compressive state and on the pivoted housing outer wall between gun body 5 and pivoted housing 6.
There are two the sealing ring 4 is total, it is separately positioned on connecing between the gun body 5 and pivoted housing 6 of 2 two sides of high pressure aquaporin
In contacting surface.
The generally cylindrical of gun body 5, cross section are " F " shape, and left part notch is for accommodating rotary drive mechanism
1, right part notch is for accommodating pivoted housing 6.
The generally hollow cylindrical of the pivoted housing 6, inside are provided with water transport channel along its length.Water transport channel
Left and right both ends shut, left part is connected with high pressure aquaporin 2, and right part is connected with the inside of nozzle 7.
The nozzle 7 shares multiple, sets gradually along 6 length direction of pivoted housing, the interval between two adjacent nozzles 6
It is equal, match at a distance from gap between the pipe between two adjacent heat-transfer pipes 9.
As shown in Figures 2 and 3, the locating piece 8 is generally hook-shaped, and the retained part on top is mounted on the outer of pivoted housing 6
On wall, the contact surface of lower end is provided with circular arc chamfering, for being in contact with the outer wall of heat-transfer pipe 9.Locating piece 8 share it is multiple,
It is corresponded with nozzle 7.By the contact of locating piece 8 lower end and heat-transfer pipe 9 in rotation, realize for position error between pipe
Compensation.
In the present embodiment, the driving mechanism 1, spring 3, gun body 5, pivoted housing 6, nozzle 7 and locating piece 8 are all made of not
Rust Steel material is made, and the sealing ring 4 is made of rubber material.
The working principle of the invention is:
It is being constrained by spring 3, can prolong nozzle 7 and locating piece 8 are set on pivoted housing 6 in axial sliding, in flushing process, turn
Set 6 is rotated under the drive of rotary drive mechanism 1, and in rotary course, locating piece 8 contacts formation with heat-transfer pipe 9 and leads
To effect, so that position error is compensated by sliding axially for pivoted housing 6 between the pipe of gun body 5, nozzle 7 is accurately aimed at heat-transfer pipe 9
Guan Jian.
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 (10)
1. a kind of steam generator sluice gun containing positioning compensation structure between pipe, it is characterised in that: it includes rotary driving machine
Structure (1), high pressure aquaporin (2), spring (3), sealing ring (4), gun body (5), pivoted housing (6), nozzle (7) and locating piece (8)；Rotation
Driving mechanism (1) is fixed on the left end of pivoted housing (6), for driving the rotation of pivoted housing (6)；High pressure aquaporin (2) is arranged in gun body
(5) left end, for being passed through high pressure water；Spring (3) is arranged on the outer wall of pivoted housing (6), is in close contact, is used for gun body (5)
Pivoted housing (6) is constrained；Sealing ring (4) setting is on the contact surface of gun body (5) and pivoted housing (6), for realizing sealing；Gun body
(5) for providing support and inner space to lance body structure；The both ends of pivoted housing (6) and gun body (5) activity link, along axial fortune
Dynamic, inside is connected with high pressure aquaporin (2)；Pivoted housing (6) is used for nozzle (7) conveying high-pressure water and drives nozzle (7) and determine
The rotation of position block (8)；Nozzle (7) is mounted on pivoted housing (6), for spraying high pressure water to heat-transfer pipe (9)；Locating piece (8) installation
On the outer wall of pivoted housing (6), position error between the pipe for compensating gun body (5).
2. the steam generator sluice gun according to claim 1 containing positioning compensation structure between pipe, it is characterised in that: institute
Rotary drive mechanism (1) the generally cylindrical stated, right end fluting, for being fixedly connected with the left end of pivoted housing (6)；Left end with
Driving device connection.
3. the steam generator sluice gun according to claim 1 containing positioning compensation structure between pipe, it is characterised in that: institute
High pressure aquaporin (2) generally inverted "L" shape, the left end stated are connect with high-pressure hydraulic pump, and lower end is connected with the inside of pivoted housing (6).
4. the steam generator sluice gun according to claim 1 containing positioning compensation structure between pipe, it is characterised in that: institute
The spring (3) stated altogether there are two, be separately positioned on the pivoted housing outer wall between rotary drive mechanism (1) and gun body (5) and rifle
It is in compressive state on pivoted housing outer wall between body (5) and pivoted housing (6).
5. the steam generator sluice gun according to claim 1 containing positioning compensation structure between pipe, it is characterised in that: institute
The sealing ring (4) stated altogether there are two, the contact that is separately positioned between the gun body (5) and pivoted housing (6) of high pressure aquaporin (2) two sides
On face.
6. the steam generator sluice gun according to claim 1 containing positioning compensation structure between pipe, it is characterised in that: institute
Gun body (5) the generally cylindrical stated, cross section are " F " shape, and left part notch is for accommodating rotary drive mechanism (1), right part
Notch is for accommodating pivoted housing (6).
7. the steam generator sluice gun according to claim 1 containing positioning compensation structure between pipe, it is characterised in that: institute
The generally hollow cylindrical of the pivoted housing (6) stated, inside are provided with water transport channel along its length；Water transport channel it is left and right
Both ends are shut, and left part is connected with high pressure aquaporin (2), and right part is connected with the inside of nozzle (7).
8. the steam generator sluice gun according to claim 1 containing positioning compensation structure between pipe, it is characterised in that: institute
The nozzle (7) stated shares multiple, and along pivoted housing (6), length direction is set gradually, the interval phase between two adjacent nozzles (6)
Deng matching at a distance from gap between the pipe between two adjacent heat-transfer pipes (9).
9. the steam generator sluice gun according to claim 8 containing positioning compensation structure between pipe, it is characterised in that: institute
The locating piece (8) stated is generally hook-shaped, and the retained part on top is mounted on the outer wall of pivoted housing (6), the contact surface setting of lower end
There is circular arc chamfering, for being in contact with the outer wall of heat-transfer pipe (9)；Locating piece (8) share it is multiple, with nozzle (7) correspond；
By the contact of locating piece (8) lower end and heat-transfer pipe (9) in rotation, the compensation for position error between pipe is realized.
10. the steam generator sluice gun according to claim 1 containing positioning compensation structure between pipe, it is characterised in that:
Driving mechanism (1), spring (3), gun body (5), pivoted housing (6), nozzle (7) and the locating piece (8) is all made of stainless steel material
It is made, the sealing ring (4) is made of rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811573619.6A CN109433704B (en) | 2018-12-21 | 2018-12-21 | Steam generator flushing gun with inter-pipe positioning compensation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811573619.6A CN109433704B (en) | 2018-12-21 | 2018-12-21 | Steam generator flushing gun with inter-pipe positioning compensation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109433704A true CN109433704A (en) | 2019-03-08 |
| CN109433704B CN109433704B (en) | 2024-02-09 |
Family
ID=65537796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811573619.6A Active CN109433704B (en) | 2018-12-21 | 2018-12-21 | Steam generator flushing gun with inter-pipe positioning compensation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109433704B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090211612A1 (en) * | 2008-01-08 | 2009-08-27 | Christos Athanassiu | Super-thin water jetting lance |
| CN103861830A (en) * | 2012-12-17 | 2014-06-18 | 核动力运行研究所 | Sludge washing gun with multi-nozzle structure |
| WO2016057653A1 (en) * | 2014-10-10 | 2016-04-14 | Foster-Miller, Inc. | Rotating lance head steam generator lancing system |
| CN207996847U (en) * | 2017-12-28 | 2018-10-23 | 核动力运行研究所 | A kind of steam generator secondary side tube sheet flexibility body refuse sluice gun header structure |
| CN209393634U (en) * | 2018-12-21 | 2019-09-17 | 核动力运行研究所 | A kind of steam generator sluice gun containing positioning compensation structure between pipe |
-
2018
- 2018-12-21 CN CN201811573619.6A patent/CN109433704B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090211612A1 (en) * | 2008-01-08 | 2009-08-27 | Christos Athanassiu | Super-thin water jetting lance |
| CN103861830A (en) * | 2012-12-17 | 2014-06-18 | 核动力运行研究所 | Sludge washing gun with multi-nozzle structure |
| WO2016057653A1 (en) * | 2014-10-10 | 2016-04-14 | Foster-Miller, Inc. | Rotating lance head steam generator lancing system |
| CN207996847U (en) * | 2017-12-28 | 2018-10-23 | 核动力运行研究所 | A kind of steam generator secondary side tube sheet flexibility body refuse sluice gun header structure |
| CN209393634U (en) * | 2018-12-21 | 2019-09-17 | 核动力运行研究所 | A kind of steam generator sluice gun containing positioning compensation structure between pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109433704B (en) | 2024-02-09 |
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