CN109433705B - Gun body for flushing mud residue of steam generator supporting plate - Google Patents
Gun body for flushing mud residue of steam generator supporting plate Download PDFInfo
- Publication number
- CN109433705B CN109433705B CN201811574972.6A CN201811574972A CN109433705B CN 109433705 B CN109433705 B CN 109433705B CN 201811574972 A CN201811574972 A CN 201811574972A CN 109433705 B CN109433705 B CN 109433705B
- Authority
- CN
- China
- Prior art keywords
- flexible
- gun
- nozzle
- guiding device
- 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.)
- Active
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
Landscapes
- Nozzles (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention belongs to the technical field of gun bodies for washing mud residues of a steam generator support plate, and particularly relates to a gun body for washing mud residues of a steam generator support plate. The device is characterized by comprising a flexible guiding device, a head joint of the flexible guiding device and a gun head; the flexible guiding device is internally provided with a first rotary flexible shaft for controlling the joint steering of the head of the flexible guiding device and a second rotary flexible shaft for controlling the rotation of the nozzle of the gun head; the gun also comprises a push-pull flexible steel belt for controlling push-pull movement of the gun head, wherein the steel belt is controlled by a push-pull driving mechanism; the gun head nozzle is connected with a first high-pressure hose and a second high-pressure hose, and air inlet ends of the two hoses are connected with a high-pressure pump through a high-pressure pipe.
Description
Technical Field
The invention belongs to the technical field of gun bodies for washing mud residues of a steam generator support plate, and particularly relates to a gun body for washing mud residues of a steam generator support plate.
Background
The steam generator, called SG for short, is one of the key equipment of the nuclear power plant and plays roles of isolation and heat exchange of the primary loop and the secondary loop. Most of SG of the current nuclear power plants adopt a vertical natural circulation structure form with a built-in steam-water separator. In the normal operation of a nuclear power unit, insoluble corrosion products can be generated in SG and water supply systems even if the secondary circuit water chemistry is strictly controlled. The corrosion products are discharged by the sewage disposal system, and are deposited on the surfaces of the SG secondary side tube plates, the gaps of the tube bundles and the supporting plates, so that sludge accumulation is formed, and finally the problems of corrosion, heat efficiency reduction, unstable water level and the like of the heat transfer tubes are caused.
Running experience at home and abroad shows that the sediment on the secondary side of SG is removed periodically, so that the corrosion and cracking trend of the heat transfer tube can be slowed down. As a periodical measure for SG secondary side maintenance, sludge hydraulic flushing, abbreviated as S/L, is increasingly commonly used in domestic and foreign pressurized water reactor nuclear power plants. The technology utilizes high-pressure water jet to break up sediment in the tube bundle and wash the sediment to the outer ring gallery, drives the sediment to the suction inlet of the suction system through circulation and sucks the sediment out of the suction system so as to achieve the aim of removing sediment on the secondary side of the SG.
At present, domestic SG sludge hydraulic flushing is widely applied to each overhaul site, but the current flushing range of the flushing devices is only aimed at the lower surfaces of SG secondary side tube plates and flow distribution plates, flushing of the supporting plates on the upper surface of a first supporting plate and above is still a blind area, and sludge deposited on the supporting plates still has a certain damage to heat transfer tubes.
Disclosure of Invention
The invention provides a steam generator flushing gun structure aiming at hydraulic flushing of sludge on a secondary side supporting plate of a steam generator of a nuclear power plant, and the sludge gun can reach the upper surface of the supporting plate, thereby achieving the aim of flushing the sludge of the supporting plate.
The invention is realized in the following way:
a gun body for flushing mud residue of a steam generator supporting plate comprises a flexible guide device, a head joint of the flexible guide device and a gun head; the flexible guiding device is internally provided with a first rotary flexible shaft for controlling the joint steering of the head of the flexible guiding device and a second rotary flexible shaft for controlling the rotation of the nozzle of the gun head; the gun also comprises a push-pull flexible steel belt for controlling push-pull movement of the gun head, wherein the steel belt is controlled by a push-pull driving mechanism; the gun head nozzle is connected with a first high-pressure hose and a second high-pressure hose, and water inlet ends of the two hoses are connected with a high-pressure pump through a high-pressure pipe.
The left nozzle, the right nozzle and the screw rod sliding block mechanism are all arranged on the gun head; the left nozzle and the right nozzle are respectively arranged at the left side and the right side of the screw rod sliding block mechanism and are symmetrical along the axis of the gun head; the rotating sleeve is respectively fixed on the outer walls of the left nozzle and the right nozzle and is positioned at the inner sides of the left nozzle and the right nozzle, and an arc-shaped wheel groove is formed in the rotating sleeve and is used for accommodating a sliding block at the outer side of the screw rod sliding block mechanism; when the screw rod sliding block mechanism is driven by the second rotary flexible shaft to do reciprocating motion, the sliding block and the arc-shaped wheel groove convert the motion into rotation of the rotating sleeve, so that the left nozzle and the right nozzle are driven to rotate.
It also includes positioning toe and toe reset spring; the positioning toe is arranged at the lower end of the gun head, and the outer diameter of the positioning toe is matched with the diameter of the central pipe gallery through hole of the supporting plate; the toe reset spring is sleeved on the outer wall of the positioning toe, and the lower end of the toe reset spring is in close contact with the supporting plate; when the flushing operation is carried out, high-pressure water is sprayed out from the nozzle, and a reaction force is generated to fix the positioning toe in the through hole of the central pipe gallery of the supporting plate, so that the position of the gun head is fixed in the flushing process; when the high-pressure water is stopped from being output, the toe reset spring can position the toes to bounce upwards, and the gun head continues to move.
The lower end of the flexible guide device is provided with a flexible shaft and high-pressure hose guide holes along the length direction, and the flexible shaft and the high-pressure hose guide holes are four in number and used for penetrating a first high-pressure hose, a second high-pressure hose, a first rotary flexible shaft and a second rotary flexible shaft respectively; the upper end of the inside of the flexible guiding device is provided with a push-pull flexible steel belt guiding hole along the length direction, which is used for penetrating the push-pull flexible steel belt.
And guide rails are arranged on two sides of the flexible guide device and used for controlling the installation of the flexible guide device in the SG hand hole.
The head joint of the flexible guiding device is realized by a turbine, and the first rotary flexible shaft is realized by a worm; through the cooperation of turbine and worm, rotate the rotation of first rotatory flexible axle drive flexible guider head joint to realize controlling the rifle head and rotate.
The flexible guide as described above includes a plurality of housings and a plurality of hinges, with adjacent housings being connected together by the hinges.
The cross section of the upper part of the shell is trapezoid, and the included angle of trapezoid hypotenuses of two adjacent shells determines the rotating direction and angle of the flexible guide device.
The beneficial effects of the invention are as follows:
1. the invention has simple structure and compact size, and is suitable for various steam generators;
2. the washing gun can wash a plurality of support plates only by one-time installation;
3. the gun head uses the positioning toe with the reset spring, and the stability of the gun head is improved through the reaction force generated by water flow in flushing;
4. the steering and the rotating speed of the nozzle can be controlled by controlling the rotation of the rotating flexible shaft outside the SG hand hole, thereby being beneficial to the control of the flushing process and enhancing the flushing effect;
5. the flexible guiding device used by the flushing gun has the structural characteristics that the gun body can deflect only in one direction in the installation process, so that the flushing gun is convenient to install;
6. a flexible steel belt is used in the process of pushing and pulling the gun head, and the steel belt has strong rigidity after the moving direction is changed.
Drawings
FIG. 1 is an overall schematic of the flushing gun of the present invention;
FIG. 2 is a schematic view of a nozzle structure of the present invention;
FIG. 3a is a schematic view of the structure of the nozzle and rotor sleeve of the present invention;
FIG. 3b is a schematic view of the rotational pattern of the nozzle and rotor of the present invention;
FIG. 3c is a side expanded view of the swivel of the invention;
FIG. 4a is a schematic view of the structure of the locating toe of the present invention;
FIG. 4b is a schematic view of the toe positioning state during flushing in accordance with the present invention;
FIG. 4c is a schematic view of the motion profile of the nozzle of the present invention;
FIG. 5 is a schematic cross-sectional view of a flexible guide of the present invention;
FIG. 6 is a schematic view of a flexible guide head joint of the present invention;
FIG. 7 is a schematic view of the main body structure of the flexible guide of the present invention;
fig. 8 is a schematic view of the gun assembly process of the present invention.
Wherein: 1. the device comprises a push-pull driving mechanism, a first high-pressure hose, a second high-pressure hose, a high-pressure pipe, a first rotary flexible shaft, a second rotary flexible shaft, a push-pull flexible steel belt, a flexible guiding device, a head joint, a gun head, a left nozzle, a right nozzle, a screw slider mechanism, a rotary sleeve, a wheel groove, a slider, a positioning toe, a supporting plate central pipe gallery through hole, a toe return spring, a flexible steel belt guiding hole, a flexible shaft, a high-pressure hose guiding hole, a guide rail, a hand hole of 23 SG, a casing, a hinge, a sleeve and a supporting plate.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1, the gun body for flushing mud residue of the steam generator supporting plate comprises a flexible guide device 8, a head joint 9 of the flexible guide device and a gun head 10. The flexible guiding device 8 is internally provided with a first rotary flexible shaft 5 for controlling the steering of the joint 9 of the head of the flexible guiding device and a second rotary flexible shaft 6 for controlling the rotation of the nozzle of the gun head 10. It also comprises a flexible steel strip 7 for controlling the pushing and pulling movement of the gun head 10, which is controlled by a pushing and pulling driving mechanism 1. The nozzle of the gun head 10 is connected with a first high-pressure hose 2 and a second high-pressure hose 3, and the water inlet ends of the two hoses are connected with a high-pressure pump through a high-pressure pipe 4.
As shown in fig. 2 and 3, the left nozzle 11, the right nozzle 12 and the screw slider mechanism 13 are mounted on the gun head 10. The left nozzle 11 and the right nozzle 12 are respectively arranged at the left side and the right side of the screw slider mechanism 13 and are symmetrical along the axis of the gun head 10. The rotating sleeve 14 is respectively fixed on the outer walls of the left nozzle 11 and the right nozzle 12 and positioned on the inner sides of the left nozzle 11 and the right nozzle 12, and an arc-shaped wheel groove 15 for accommodating a sliding block 16 on the outer side of the screw rod sliding block mechanism 13 is formed on the rotating sleeve 14. When the screw rod sliding block mechanism 13 is driven by the second rotary flexible shaft 6 to do reciprocating motion, the sliding block 16 and the arc-shaped wheel groove 15 convert the motion into rotation of the rotating sleeve 14, so that the left nozzle 11 and the right nozzle 12 are driven to rotate.
As shown in fig. 4 a-4 c, the present invention also includes positioning toes 17 and toe return springs 19. The positioning toe 17 is arranged at the lower end of the gun head 10, and the outer diameter of the positioning toe is matched with the diameter of the central pipe gallery through hole 18 of the supporting plate. The toe return spring 19 is sleeved on the outer wall of the positioning toe 17, and the lower end of the toe return spring is tightly contacted with the supporting plate. When the flushing operation is carried out, high-pressure water is sprayed out from the nozzle, and a reaction force is generated to fix the positioning toe 17 in the central pipe gallery through hole 18 of the supporting plate, so that the position of the gun head 10 is fixed in the flushing process. When the high-pressure water is stopped from being output, the toe return spring 19 will position the toe 17 to spring upwards, and the gun head 10 can continue to move.
As shown in fig. 5, the flexible shaft and the high-pressure hose guiding holes 21 are formed at the lower end of the flexible guiding device 8 along the length direction, and the four flexible shaft and the high-pressure hose guiding holes are respectively used for penetrating 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. A flexible steel belt guiding hole 20 for pushing and pulling is provided at the upper end of the inside of the flexible guiding device 8 along the length direction for passing through the flexible steel belt 7. Guide rails 22 are provided on both sides of the flexible guide 8 for controlling the installation of the flexible guide 8 in the SG hand hole 23.
As shown in fig. 6, the flexible guiding device head joint 9 is realized by a turbine, and the first rotary flexible shaft 5 is realized by a worm. Through the cooperation of the turbine and the worm, the first rotary flexible shaft 5 is rotated to drive the joint 9 of the head of the flexible guiding device to rotate, so that the gun head 10 is controlled to rotate.
As shown in fig. 7, the flexible guide 8 includes a plurality of housings 24 and a plurality of hinges 25, and the adjacent housings 24 are connected together by the hinges 25.
The cross section of the upper part of the shell 24 is trapezoid, and the included angle of trapezoid hypotenuses of two adjacent shells 24 determines the rotating direction and angle of the flexible guiding device 8.
The working process of the invention is as follows:
the guide rail 22 is firstly installed in the SG hand hole 23, the head of the guide rail 22 enters the inner wall of the sleeve 26, then the flexible guide device 8 is sent into the steam generator along the guide rail 22, the gun head 10 moves upwards along the guide rail 22 after passing through the sleeve 26, and the movement direction of the flexible guide device 8 is not changed after extending out of the guide rail 22 because the flexible guide device 8 is designed to rotate only in a single direction. When the gun head 10 reaches the supporting plate 27, the first rotary flexible shaft 5 controls the worm and gear structure of the joint 9 of the head of the flexible guiding device to place the gun head 10 above the supporting plate 27, and then the push-pull flexible steel belt 7 is pushed by the push-pull driving mechanism 1 to drive the gun head 10 to move forwards, so that flushing work is carried out at a designated position.
While the embodiments of the present invention have been described in detail, the present invention is not limited to the embodiments described above, and various modifications may be made without departing from the spirit of the present invention, within the knowledge of those skilled in the art. The invention may be practiced otherwise than as specifically described in the specification.
Claims (7)
1. A rifle body that is used for steam generator backup pad mud sediment to wash, its characterized in that: comprises a flexible guiding device (8), a head joint (9) of the flexible guiding device and a gun head (10); a first rotary flexible shaft (5) for controlling the steering of a head joint (9) of the flexible guiding device and a second rotary flexible shaft (6) for controlling the rotation of a nozzle of a gun head (10) are arranged in the flexible guiding device (8); the gun also comprises a push-pull flexible steel belt (7) for controlling push-pull movement of the gun head (10), and the steel belt is controlled by a push-pull driving mechanism (1); a nozzle of the gun head (10) is connected with a first high-pressure hose (2) and a second high-pressure hose (3), and water inlet ends of the two hoses are connected with a high-pressure pump through a high-pressure pipe (4);
the device also comprises a positioning toe (17) and a toe return spring (19); the positioning toe (17) is arranged at the lower end of the gun head (10), and the outer diameter of the positioning toe is matched with the diameter of the central pipe gallery through hole (18) of the supporting plate; the toe reset spring (19) is sleeved on the outer wall of the positioning toe (17), and the lower end of the toe reset spring is tightly contacted with the supporting plate; when the flushing operation is carried out, high-pressure water is sprayed out from the nozzle, and a reaction force is generated to fix the positioning toe (17) in the central pipe gallery through hole (18) of the supporting plate, so that the position of the gun head (10) is fixed in the flushing process; when the high-pressure water is stopped from being output, the toe return spring (19) can spring the positioning toe (17) upwards, and the gun head (10) continues to move.
2. The gun body for washing sludge of a steam generator support plate according to claim 1, wherein: the left nozzle (11), the right nozzle (12) and the screw rod sliding block mechanism (13) are all arranged on the gun head (10); the left nozzle (11) and the right nozzle (12) are respectively arranged at the left side and the right side of the screw rod sliding block mechanism (13) and are symmetrical along the axis of the gun head (10); the rotating sleeve (14) is respectively fixed on the outer walls of the left nozzle (11) and the right nozzle (12), is positioned on the inner sides of the left nozzle (11) and the right nozzle (12), and is provided with an arc-shaped wheel groove (15) for accommodating a sliding block (16) on the outer side of the screw rod sliding block mechanism (13); when the screw rod sliding block mechanism (13) is driven by the second rotary flexible shaft (6) to do reciprocating motion, the sliding block (16) and the arc-shaped wheel groove (15) convert the motion into rotation of the rotating sleeve (14), so that the left nozzle (11) and the right nozzle (12) are driven to rotate.
3. The gun body for washing sludge of a steam generator support plate according to claim 1, wherein: the lower end of the flexible guide device (8) is provided with a flexible shaft and a high-pressure hose guide hole (21) along the length direction, and the four flexible shaft and the high-pressure hose guide holes are respectively used for penetrating a first high-pressure hose (2), a second high-pressure hose (3), a first rotary flexible shaft (5) and a second rotary flexible shaft (6); the upper end inside the flexible guiding device (8) is provided with a push-pull flexible steel belt guiding hole (20) along the length direction for penetrating the push-pull flexible steel belt (7).
4. A gun body for steam generator support plate sludge flushing as claimed in claim 3, wherein: guide rails (22) are arranged on two sides of the flexible guiding device (8) and are used for controlling the installation of the flexible guiding device (8) in the hand hole (23) of the steam generator.
5. The gun body for washing sludge of a steam generator support plate according to claim 1, wherein: the head joint (9) of the flexible guiding device is realized by adopting a worm wheel, and the first rotary flexible shaft (5) is realized by adopting a worm; through the cooperation of the worm wheel and the worm, the first rotary flexible shaft (5) is rotated to drive the head joint (9) of the flexible guiding device to rotate, so that the gun head (10) is controlled to rotate.
6. The gun body for washing sludge of a steam generator support plate according to claim 1, wherein: the flexible guide device (8) comprises a plurality of shells (24) and a plurality of hinges (25), and two adjacent shells (24) are connected together through the hinges (25).
7. The gun body for washing sludge of a steam generator support plate of claim 6 wherein: the cross section of the upper part of each shell (24) is trapezoid, and the rotating direction and angle of the flexible guide device (8) are determined by the included angle of trapezoid hypotenuses of two adjacent shells (24).
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 CN109433705A (en) | 2019-03-08 |
| CN109433705B true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115739872A (en) * | 2022-10-27 | 2023-03-07 | 中核武汉核电运行技术股份有限公司 | Grinding device for shearing hard filiform foreign matters between heat transfer tubes of steam generator |
Citations (8)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8398785B2 (en) * | 2009-08-10 | 2013-03-19 | Nlb Corp. | Rigid lance cleaning system and method therefor |
-
2018
- 2018-12-21 CN CN201811574972.6A patent/CN109433705B/en active Active
Patent Citations (8)
| 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 |
| 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 |
|---|
| 蒸汽发生器支撑板泥渣冲洗三维动画设计;刘一博;杨津瑞;王陈帆;舒芝锋;张高剑;;设备管理与维修(第16期);第85-86页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109433705A (en) | 2019-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100970436B1 (en) | Partial Inter-tube lancing apparatus with hydraulic drive for steam generator in nudear plant | |
| KR101103820B1 (en) | Dual type equipment for water jet cleaning on the top of the tube sheet of steam generator in nuclear power plant | |
| CN110440632B (en) | Power plant condenser scale removal cleaning equipment | |
| US7086353B2 (en) | Lance system for inter-tube inspecting and lancing as well as barrel spraying of heat transfer tubes of steam generator in nuclear power plant | |
| CN1664486A (en) | Robot technology of on-line cleaning power plant steam condenser using high pressure water jet | |
| CN109433705B (en) | Gun body for flushing mud residue of steam generator supporting plate | |
| CN101672600A (en) | Automatic cleaning device of indirect air cooler for power station | |
| CN102401609A (en) | Online cleaning device for heat exchange tube of condenser | |
| CN106931825A (en) | A kind of rubber ball cleaning robot device | |
| CN113979582A (en) | Boiler blowdown waste water recovery treatment equipment | |
| CN2779328Y (en) | High pressure water jetting online cleaning robot for power plant condenser | |
| CN109967422B (en) | High-pressure water flushing nozzle for sludge of secondary side pipe plate of steam generator | |
| CN110586553B (en) | Water-saving well drilling drill bit belt cleaning device | |
| CN209663842U (en) | A kind of gun body rinsed for Steam Generator Support Plate body refuse | |
| CN205228264U (en) | Online washing unit of condenser water under high pressure | |
| CN109433706B (en) | Gun body for flushing mud slag of tube plate of steam generator with central partition plate | |
| CN201394562Y (en) | Heat radiation cleaning machine | |
| CN109174848B (en) | Pipeline cleaning device and method | |
| CN110813963B (en) | Water spray type self-driven spiral advancing tank wall intelligent cleaning device | |
| CN109433704B (en) | Steam generator flushing gun with inter-pipe positioning compensation structure | |
| KR100563936B1 (en) | A sludge cleaning equipment of steam generator using high pressure water spray | |
| CN112502622A (en) | Drilling equipment for tunnel | |
| CN220072695U (en) | Cleaning device for drainage pipeline | |
| CN219548842U (en) | Self-driven scale prevention and removal device | |
| CN203069040U (en) | Cleaning device during operation of industrial coal-fired boiler gas desulfurization system GGH |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |