WO2023050161A1 - 适用于蒸汽发生器的多方向射流清洗装置 - Google Patents
适用于蒸汽发生器的多方向射流清洗装置 Download PDFInfo
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- WO2023050161A1 WO2023050161A1 PCT/CN2021/121734 CN2021121734W WO2023050161A1 WO 2023050161 A1 WO2023050161 A1 WO 2023050161A1 CN 2021121734 W CN2021121734 W CN 2021121734W WO 2023050161 A1 WO2023050161 A1 WO 2023050161A1
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- nozzle
- assembly
- transmission mechanism
- bevel gear
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- 238000004140 cleaning Methods 0.000 title claims abstract description 75
- 230000005540 biological transmission Effects 0.000 claims abstract description 112
- 230000007246 mechanism Effects 0.000 claims abstract description 109
- 230000001360 synchronised effect Effects 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 208000032370 Secondary transmission Diseases 0.000 claims abstract description 7
- 230000000712 assembly Effects 0.000 claims description 23
- 238000000429 assembly Methods 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 20
- 230000007704 transition Effects 0.000 claims description 17
- 208000032369 Primary transmission Diseases 0.000 abstract 4
- 238000013461 design Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000012546 transfer Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Classifications
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/16—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris
Definitions
- the invention relates to the technical field of steam generator cleaning, in particular to a steam generator cleaning device suitable for multi-directional jets in a narrow space.
- the steam generator is an important equipment used for heat exchange in the primary and secondary circuits of a nuclear power plant. There are as many as tens of thousands of tube bundles installed inside. Every time a nuclear power plant is shut down for maintenance, it is necessary to clean the secondary side tube bundle of the steam generator. With the third-generation nuclear power technology steam generator put into use, the development of its cleaning technology and equipment is also necessary. For example, the internal structure of the third-generation steam generator designed by B&W Company is quite special. The heat transfer tubes are arranged in an equilateral triangle. In the case of the parameters and straightness of the jet, the symmetrical arrangement of the nozzle components on both sides can no longer be realized, which brings great challenges to the design of the cleaning mechanism.
- the current mainstream cleaning mechanism is divided into two parts, one is cleaning in the direction of 90° to the central pipe gallery; the other is cleaning in the direction of 30° or 150° to the central pipe gallery; the two cleaning mechanisms are used alternately, and the cleaning time is longer ; Usually, it is carried out according to the process sequence of 90°-30-150°-90° cleaning, but the cleaning mechanism needs to be dismantled and replaced in the middle process, which increases the exposure dose and labor load of certain personnel.
- the Chinese invention patent with the application number 201210550000.X and the name "a sludge washing gun with a multi-nozzle structure” discloses a washing gun with three washing directions, but it can be seen from the disclosed content that The oblique nozzle assembly of the flushing gun is only arranged on one side, which cannot meet the requirements of nozzles arranged on both sides and the direction of rotation of the nozzles on both sides are consistent. At the same time, it is not clear how to realize the transmission between the motor and the gear shaft and the arrangement and arrangement of the water channel in the patent. Circulation design. Those skilled in the art cannot realize the flushing mechanism design of the multi-angle double-sided asymmetrically arranged nozzles based on the disclosed content. Therefore, it is urgent to design a high-efficiency cleaning mechanism that can adapt to a narrow use environment, does not need to be replaced, and can arrange nozzles asymmetrically on both sides to achieve multi-directional jets.
- the object of the present invention is to provide a jet cleaning device suitable for steam generators with multi-directional nozzles arranged on both sides, which can realize efficient cleaning of double-sided multi-directional jets, and the cleaning process does not require Replace cleaning mechanism.
- a multi-directional jet cleaning device suitable for steam generators comprising a frame assembly, a transmission assembly arranged on the frame assembly, a first nozzle assembly and a second nozzle assembly, and a motor for driving the transmission assembly to run components;
- the transmission assembly includes a main transmission mechanism, a slave transmission mechanism, a second nozzle transmission mechanism and a synchronous belt for realizing the synchronous rotation of the main transmission mechanism, the slave transmission mechanism and the second nozzle transmission mechanism; the motor assembly is used to drive The main transmission mechanism rotates; the second nozzle transmission mechanism is provided with a second nozzle assembly, and the main transmission mechanism and/or the secondary transmission mechanism is provided with a first nozzle assembly;
- the frame assembly includes an upper cover and a lower cover, the first nozzle assembly and the second nozzle assembly are arranged on the lower cover, and a plurality of the first nozzle assemblies are asymmetrically arranged at the center of the lower cover in the longitudinal direction
- a water channel is opened in the lower cover, and the water channel communicates with the second nozzle assembly and the first nozzle assembly.
- the extension direction of the nozzles of the second nozzle assembly is not parallel to the extension direction of the nozzles of the first nozzle assembly, so as to realize tube bundle cleaning in different directions.
- the nozzle assemblies with different angles are integrated into the same cleaning device, not only the position of the first nozzle assembly and the second nozzle assembly needs to be carried out according to the principle that the center of the nozzle is aligned with the center of a tube bundle gap of the steam generator Design, that is, one of the nozzles is aligned with the gap center of the tube bundle, and the remaining nozzles are naturally aligned with the corresponding tube bundle gap center.
- the motor assembly includes a motor and a first bevel gear located at the output end of the motor, the motor is used to drive the first bevel gear to rotate, and the first bevel gear and the The main drive mechanism contacts.
- the main transmission mechanism includes a first rotating shaft, a second bevel gear sleeved outside the first rotating shaft from top to bottom, a main synchronous wheel, a main spur gear and a third bevel a gear; the second bevel gear meshes with the first bevel gear; the third bevel gear contacts the first nozzle assembly.
- the slave transmission mechanism includes a second shaft and a slave synchronous wheel, a slave spur gear and a fourth bevel gear that are sleeved outside the second shaft from top to bottom in sequence;
- the four-bevel gear is in contact with the first nozzle assembly.
- the main synchronous wheel and the secondary synchronous wheel are located on the same plane, and the synchronous belt is sleeved on the main synchronous wheel and the secondary synchronous wheel.
- the first nozzle assembly includes a rotating shaft, a first sealing ring, a first nozzle bevel gear, a first nozzle bearing, a fixing plate and a nozzle bracket that are sequentially sleeved on the outside of the rotating shaft , the nozzle bracket is provided with a first nozzle, the rotating shaft is provided with a first flow channel for communicating with the water flow channel and the first nozzle, the fixing plate is fixedly installed on the lower cover, and the first A nozzle bevel gear meshes with the third bevel gear or the fourth bevel gear.
- the first nozzle assembly includes a transition ring and a first nozzle sub-bearing, the first nozzle sub-bearing and the first nozzle bearing are respectively located on both sides of the first nozzle bevel gear,
- the transition ring is located between the first sealing ring and the first nozzle sub-bearing;
- the fixing plate is fixed to the outer ring of the first nozzle bearing, and the transition ring is fixed to the outer ring of the first nozzle sub-bearing
- the ring is fixed, and the inner ring of the first nozzle bearing, the inner ring of the first nozzle auxiliary bearing, the first nozzle bevel gear and the nozzle bracket are fixedly connected with the rotating shaft.
- the transmission assembly further includes an auxiliary transmission mechanism in contact with the main transmission mechanism and/or the slave transmission mechanism, and the auxiliary transmission mechanism includes a third rotating shaft and sleeved from top to bottom
- the first nozzle assembly is correspondingly arranged on the auxiliary transmission mechanism , the secondary bevel gear meshes with the first nozzle bevel gear.
- the lower cover is provided with an accommodating groove for accommodating part of the first nozzle assembly and a driving groove for the bevel gear of the first nozzle to leak out, and the first nozzle
- the bevel gear passes through the drive groove and meshes with the bevel gears at the lower ends of the main transmission mechanism, the slave transmission mechanism and the auxiliary transmission mechanism.
- the second nozzle transmission mechanism includes a fourth rotating shaft and an auxiliary synchronous wheel, an auxiliary bearing, and an auxiliary bevel gear that are sleeved outside the fourth rotating shaft in sequence from top to bottom.
- the bearing is fixed on the lower cover, and the auxiliary synchronous wheel is in contact with the synchronous belt and rotates synchronously.
- the second nozzle assembly includes a rotating frame, a second nozzle bevel gear sleeved on the rotating frame, mounting frames rotatably connected to both ends of the rotating frame, and The second nozzle on the rotating frame, the mounting frame is fixedly installed on the frame assembly, the bevel gear of the second nozzle is meshed with the auxiliary bevel gear, and there is a nozzle in the rotating frame for communicating with the water channel and the second flow path of the second nozzle.
- a second nozzle bearing is arranged between the rotating frame and the mounting frame, and second sealing rings are arranged at both ends of the rotating frame; two sealing rings are arranged on the rotating frame. one or more second nozzles, and the second nozzles are arranged symmetrically on both sides of the second nozzle bevel gear.
- the center lines of the first rotating shaft, the second rotating shaft, the third rotating shaft and the fourth rotating shaft are not on a straight line along the length direction of the frame assembly, and the upper ends of the rotating shafts are all provided with main bearings, so
- the main bearing is fixed on the upper cover; a cavity is formed between the upper cover and the lower cover, and the main synchronous wheel, the slave synchronous wheel, the main spur gear, the slave spur gear and the synchronous belt are accommodated in the cavity .
- the water channel includes a main branch section of the water channel, a first branch section connecting the main branch section of the water channel with the first flow channel, and a first branch section connecting the main branch section of the water channel with the second flow channel.
- two-branch segment in order to ensure the water flow, the cross section of the main branch section of the water channel is designed to be elliptical, including the inclined section at the entrance and the horizontal section.
- the inclined section is inclined downward from the entrance, and the horizontal section is located between the first nozzle assembly and the horizontal section. Below the second nozzle assembly; the first branch section and the second branch section communicate with the horizontal section.
- the first branch section is arranged vertically, and the second branch section is arranged obliquely.
- a first nozzle assembly is provided on both sides of the horizontal section, and two first branch sections are arranged staggered from each other and are respectively distributed on both sides of the axis of the horizontal section.
- a second branch transition section is also provided between the second branch section and the second flow channel, and the second branch section and the second branch transition section are vertically arranged for passing the water flow in the horizontal section through the second branch section and the second branch section. The branch transition leads into the second flow channel.
- each of the first nozzle assemblies is arranged on one side of the extension direction of the main branch section of the water channel, and each group of two first nozzle assemblies is asymmetrically arranged on the main branch section of the water channel.
- the two sides of the branch section; the connection between the first branch section corresponding to the two first nozzle assemblies and the main branch section of the water channel in each group is respectively located on both sides of the short axis of the main branch section of the oval water channel and about the The minor axis is asymmetrical.
- the transmission assembly includes a tensioning mechanism
- the tensioning mechanism includes a fixed seat, a fixed shaft fixed on the fixed seat, and an adjustment synchronous wheel, and the adjustment synchronous wheel is connected to the The timing belts contact and rotate synchronously.
- a group of second nozzle assemblies and first nozzle assemblies symmetrically arranged on both sides of the second nozzle assembly are arranged on the lower cover, and the second nozzle transmission mechanism is arranged on the Between the main transmission mechanism and the secondary transmission mechanism, the spray direction of the nozzles in the first nozzle assembly is all towards the center of the tube gap.
- the present invention is beneficial in that: the multi-directional jet cleaning device suitable for steam generators of the present invention has a reasonable and compact structure design, and the 90° nozzle assembly and 30 The -150° nozzle assembly is integrated in the same cleaning device to realize asymmetric arrangement of nozzles on both sides, realize efficient cleaning with multi-directional jets, and solve the problems of cleaning mechanism replacement and cleaning efficiency at different jet angles.
- Fig. 1 is a perspective view of a first viewing angle of a multi-directional jet cleaning device in a preferred embodiment of the present invention
- FIG. 2 is a perspective view of a second viewing angle of a multi-directional jet cleaning device in a preferred embodiment of the present invention
- Fig. 3 is the front view of the multi-directional jet cleaning device in the preferred embodiment of the present invention.
- FIG. 4 is a perspective view of a motor assembly in a multi-directional jet cleaning device according to a preferred embodiment of the present invention.
- Fig. 5 is a perspective view of the transmission assembly in the multi-directional jet cleaning device according to the preferred embodiment of the present invention.
- FIG. 6 is a perspective view of the first nozzle assembly in the multi-directional jet cleaning device according to the preferred embodiment of the present invention.
- FIG. 7 is a cross-sectional view of the first nozzle assembly in the multi-directional jet cleaning device of the preferred embodiment of the present invention.
- FIG. 8 is a perspective view of the second nozzle assembly in the multi-directional jet cleaning device according to the preferred embodiment of the present invention.
- FIG. 9 is a cross-sectional view of the second nozzle assembly in the multi-directional jet cleaning device of the preferred embodiment of the present invention.
- Fig. 10 is a perspective view of the lower cover in the multi-directional jet cleaning device according to the preferred embodiment of the present invention.
- Fig. 11 is a top view of the lower cover in the multi-directional jet cleaning device according to the preferred embodiment of the present invention.
- Fig. 12 is the sectional view of H-H in Fig. 11;
- Fig. 13 is a schematic diagram of the water channel in the lower cover of the multi-directional jet cleaning device according to the preferred embodiment of the present invention.
- motor assembly 11. motor sealing shell; 12. motor; 13. first bevel gear; 14. sealing cover; 2. transmission assembly; 21. main transmission mechanism; 211. first rotating shaft; The second bevel gear; 213, the main synchronous wheel; 214, the main spur gear; 215, the third bevel gear; 22, from the transmission mechanism; 221, the second rotating shaft; 222, from the synchronous wheel; 223, from the spur gear; 224, The fourth bevel gear; 23, secondary transmission mechanism; 231, the third rotating shaft; 232, secondary spur gear; 233, secondary bevel gear; 24, the second nozzle transmission mechanism; 241, the fourth rotating shaft; 242, auxiliary synchronous wheel; 243 , auxiliary bearing; 244, auxiliary bevel gear; 245, fixed nut; 25, tension mechanism; 251, fixed seat; 252, fixed shaft; 253, adjust synchronous wheel; 26, synchronous belt; 27, main bearing; 3,30 -150° nozzle assembly; 31, rotating shaft; 32, first sealing ring; 33, transition ring; 34, first nozzle auxiliary bearing; 35, first
- the purpose of the present invention is to provide a multi-directional jet cleaning device suitable for steam generators in nuclear power plants, which overcomes the shortcomings of single jet direction cleaning mechanisms used in domestic and foreign nuclear power plants during the working process, such as inconvenient replacement and disassembly, and low work efficiency.
- the present invention uses a motor assembly to simultaneously drive the 30-150° nozzle assembly (the first nozzle assembly) and the 90° nozzle assembly (the second nozzle assembly) water jets to rotate between the tube bundles by using the transmission assembly, thereby meeting the requirements for full area coverage between the tube bundles. The cleaning effect is guaranteed while the cleaning efficiency is better.
- the focus of the present invention is how to set multiple asymmetrical first nozzle assemblies and second nozzle assemblies on both sides to achieve the purpose of multi-directional jets for better cleaning under the premise of ensuring that the width of the entire cleaning device is small.
- the multi-directional jet cleaning device suitable for steam generators in this embodiment includes a frame assembly 6, a transmission assembly 2 arranged on the frame assembly 6, a first nozzle assembly and a second nozzle assembly , and a motor assembly 11 for driving the transmission assembly 2 to run.
- the first nozzle assembly in this embodiment is the 30-150° nozzle assembly 3
- the second nozzle assembly is the 90° nozzle assembly 4 .
- the transmission assembly 2 includes a main transmission mechanism 21, a slave transmission mechanism 22, a second nozzle transmission mechanism 24, an auxiliary transmission mechanism 23, and is used to realize the main transmission mechanism 21, the slave transmission mechanism 22, the second nozzle transmission mechanism 24, and the auxiliary transmission mechanism 23.
- the synchronously rotating synchronous belt 26 and the motor assembly 11 are used to drive the main transmission mechanism 21 to rotate.
- the frame assembly 6 includes an upper cover 61 and a lower cover 62, the first nozzle assembly and the second nozzle assembly are arranged on the lower cover 62, and a water flow channel is opened in the lower cover 62, and the water flow channel communicates with the second nozzle assembly and the first nozzle assembly to realize water supply.
- the extension direction of the nozzles of the second nozzle assembly is not parallel to the extension direction of the nozzles of the first nozzle assembly, so as to realize tube bundle cleaning in different directions.
- the 30-150° nozzle assembly 3 in this embodiment includes a rotating shaft 31, a first sealing ring 32 and a transition ring 33 that are sequentially sleeved outside the rotating shaft 31 , the first nozzle auxiliary bearing 34, the first nozzle bevel gear 35, the first nozzle bearing 36, the fixed plate 37, the nozzle bracket 38, and the first nozzle 39 arranged on the nozzle bracket 38, the first nozzle 39 is used to ensure that the water The linearity of the jet stream ensures the cleaning effect.
- the first nozzle auxiliary bearing 34 and the first nozzle bearing 36 are respectively located on both sides of the first nozzle bevel gear 35
- the transition ring 33 is located between the first sealing ring 32 and the first nozzle auxiliary bearing 34 .
- the fixing plate 37 is fixed to the outer ring of the first nozzle bearing 36, the transition ring 33 is fixed to the outer ring of the first nozzle sub-bearing 34, the inner ring of the first nozzle bearing 36, the inner ring of the first nozzle sub-bearing 34, the first The nozzle bevel gear 35 and the nozzle holder 38 are fixedly connected with the rotating shaft 31 .
- the rotating shaft 31 is provided with a first channel 310 for connecting the water channel and the first nozzle 39
- the fixed plate 37 is fixedly mounted on the lower cover 62
- the bevel gear 35 of the first nozzle meshes with the bevel gear in the transmission assembly 2 .
- the 90° nozzle assembly 4 (the second nozzle assembly) in this embodiment includes a rotating frame 43, a second nozzle bevel gear 44 sleeved on the rotating frame 43, and connected to the rotating frame 43.
- the gear 44 meshes with the bevel gear on the second nozzle transmission mechanism 24 , and a second flow channel 47 for communicating with the water flow channel and the second nozzle 45 is opened in the rotating frame 43 .
- Both ends of the rotating frame 43 are provided with second sealing rings 46 .
- two second nozzles 45 are arranged symmetrically with respect to the second nozzle bevel gear 44 on the rotating frame 43 .
- the motor assembly 11 in this embodiment is installed on the upper cover 61 of the frame assembly 6 , and includes a motor sealing shell 11 , a motor 12 , a first bevel gear 13 , and a sealing cover 14 .
- the output shaft of the motor 12 is connected with the first bevel gear 13 for driving the first bevel gear 13 to rotate; the motor 12 is installed in the motor sealing case 11, and forms a sealed environment for the motor 12 together with the sealing cover 14.
- the transmission assembly 2 in this embodiment includes a synchronous belt 26 and a main transmission mechanism 21 in contact with the synchronous belt 26, a slave transmission mechanism 22, a second nozzle transmission mechanism 24, a tensioning mechanism 25 and a The transmission mechanism 21 or the auxiliary transmission mechanism 23 driven by the transmission mechanism 22 to rotate.
- the main transmission mechanism 21 includes a first rotating shaft 211, a main bearing 27 sleeved outside the first rotating shaft 211 from top to bottom, a second bevel gear 212, a main synchronous wheel 213, a main spur gear 214, an auxiliary bearing 243 and a third
- the slave transmission mechanism 22 includes a second rotating shaft 221 and a main bearing 27, a slave synchronous wheel 222, a slave spur gear 223, an auxiliary bearing 243, and a fourth bevel gear 224 that are sleeved outside the second shaft 221 from top to bottom;
- the bevel gear 224 meshes with the first nozzle bevel gear 35 of the first nozzle assembly.
- the main synchronous wheel 213 and the secondary synchronous wheel 222 are located on the same plane, and the synchronous belt 26 is sheathed on the main synchronous wheel 213 and the secondary synchronous wheel 222 .
- the auxiliary transmission mechanism 23 includes a third rotating shaft 231 and a main bearing 27, an auxiliary spur gear 232, an auxiliary bearing 243 and an auxiliary bevel gear 233 that are sleeved outside the third rotating shaft 231 from top to bottom in sequence, and the auxiliary spur gear 232 and the main spur gear 214 or the spur gear 223 meshes, and the auxiliary transmission mechanism 23 is provided with a first nozzle assembly correspondingly, and the auxiliary bevel gear 233 meshes with the first nozzle bevel gear 35 .
- the second nozzle transmission mechanism 24 includes a fourth rotating shaft 241 and a main bearing 27, an auxiliary synchronous wheel 242, a fixing nut 245, an auxiliary bearing 243, an auxiliary bevel gear 244, and an auxiliary bevel gear 244 that are sleeved outside the fourth rotating shaft 241 from top to bottom.
- Gear 244 forms a bevel gear set with the second nozzle bevel gear 44 in the second nozzle group assembly.
- the fixing nut 245 and the auxiliary bearing 243 are fixed on the lower cover 62, and the auxiliary synchronous wheel 242 is in contact with the synchronous belt 26 and rotates synchronously.
- the tensioning mechanism 25 includes a fixed base 251 , a fixed shaft 252 fixed on the fixed base 251 and an adjustment synchronous wheel 253 , the adjustment synchronous wheel 253 is in contact with the synchronous belt 26 and rotates synchronously.
- the fixing seat 251 has an adjusting groove, through which the position of the synchronous wheel 253 can be adjusted and the tension of the synchronous belt 26 can be adjusted.
- the upper ends of the first rotating shaft 211, the second rotating shaft 221, the third rotating shaft 231 and the fourth rotating shaft 241 are provided with main bearings 27, and the lower ends are provided with auxiliary bearings 243 above the bevel gears, and the main bearings 27 are fixed On the upper cover 61.
- a cavity is formed between the upper cover 61 and the lower cover 62, and the main synchronous wheel 213, the secondary synchronous wheel 222, the main spur gear 214, the secondary spur gear 223 and the synchronous belt 26 are accommodated in the cavity.
- the position and operation stability of each transmission mechanism are guaranteed by the main bearing 27 and the auxiliary bearing 243 .
- the frame assembly 6 in this embodiment includes an upper cover 61 , a lower cover 62 , a connecting plate 63 and a limiting block 64 .
- the lower cover 62 is provided with a high-pressure water flow channel inside, including: the main branch section 621 of the water channel, the 30-150° branch section 622 connected to the main branch section 621 of the water channel to the first flow channel 310 of the 30-150° nozzle assembly 3, and the main branch section 622 connected to the main branch section of the water channel.
- the branch section 621 reaches the 90° branch section 623 at the second channel 47 of the 90° nozzle assembly 4 .
- High-pressure water enters the main branch section 621 of the water channel from the water inlet 5, enters the first flow channel 310 through the 30-150° branch section 622, and then enters the first nozzle assembly, and is sprayed by the first nozzle 39; enters through the 90° branch section 623 into the second flow channel 47 , and then enters the second nozzle assembly, and is sprayed out by the second nozzle 45 .
- the cross-section of the main branch section 621 of the waterway in this embodiment is designed to be elliptical, including an inclined section at the entrance and a horizontal section.
- the inclined section is inclined downward from the entrance, and the horizontal section is located between the first nozzle assembly and the horizontal section.
- the first branch section 622 is perpendicular to the horizontal section, and the second branch section 623 is arranged obliquely.
- a first nozzle assembly is provided on both sides of the horizontal section, and the two first branch sections 622 are arranged staggered from each other, respectively distributed on both sides of the axis line of the horizontal section, that is, respectively located in the main branch section of the elliptical waterway. Asymmetric on both sides of the minor axis and about the minor axis.
- a second branch transition section is also provided between the second branch section 623 and the second flow channel 47, and the second branch section 623 and the second branch transition section are vertically arranged for passing the water flow in the horizontal section through the second branch section. 623 and the second branch transition section are introduced into the second flow channel 47 .
- the penetration of the water channel is realized, and the production of the water channel is relatively convenient.
- the second branch transition section and the horizontal section are penetrated from the outside to the inside, and then the outer end of the second branch section 623 is blocked.
- the opening of other water channels is also similar.
- two sets of first nozzle assemblies are arranged symmetrically on both sides of the centerline in the width direction of the lower cover (the vertical direction in Figure 11), and each group of two first nozzle assemblies is arranged asymmetrically on the centerline in the longitudinal direction of the lower cover ( The horizontal direction of Figure 11) on both sides; at the same time, as shown in Figure 5, the corresponding transmission mechanisms cannot be distributed on the same straight line, and the centerlines of the first, second, third and fourth rotating shafts are not along the frame assembly On a straight line in the length direction, it is driven synchronously by a synchronous belt.
- the cleaning device has a compact structure, and at the same time, the transmission effect and the cleaning effect can be ensured.
- the lower cover 62 is processed with a plurality of weight-reducing grooves 626 ; one of which is set as a handle 625 .
- the upper cover 61 and the lower cover 62 are connected by bolts and sealing strips, and the connecting plate 63 and the limit block 64 are installed at the bottom of the lower cover 62 to facilitate the matching of the entire cleaning device with other mobile carriers;
- the water inlet 5 is installed on the end face of the lower cover 62 , and communicate with the main branch section 621 of the waterway.
- the lower cover 62 is provided with a receiving groove 627 for accommodating some components in the first nozzle assembly and a driving groove 628 for the first nozzle bevel gear 35 to leak out.
- the first nozzle bevel gear 35 passes through the driving groove 628 and The bevel gears at the lower end of the main transmission mechanism 21, the slave transmission mechanism 22, and the auxiliary transmission mechanism 23 are meshed.
- the lower cover 62 in this embodiment is provided with a second nozzle assembly and four first nozzle assemblies symmetrically arranged on both sides of the second nozzle assembly.
- the jet directions of the nozzles in the four first nozzle assemblies are all different, and Different from the jet flow direction of the second nozzle to realize tube bundle cleaning in different directions.
- the second nozzle transmission mechanism 24 is arranged between the main transmission mechanism 21 and the slave transmission mechanism 22 .
- the upper cover 61 in this embodiment is also equipped with a sensor assembly 7, including a mounting plate 72, a proximity sensor 73 installed on the mounting plate 72; the mounting plate 72 is installed on the upper cover 61 through a rotating bracket 71 to adjust the mounting plate 72 angles.
- the proximity sensor 73 is used to control the precise displacement of other mobile carriers, so that the nozzle can be aligned with the center of the canal gap, and in some cases, it can also be replaced with a small camera.
- the nuclear power plant steam generator multi-directional jet cleaning device of the present invention includes a motor assembly, a transmission assembly, a 30-150° nozzle assembly, a 90° nozzle assembly, a water inlet, a frame assembly and a sensor assembly.
- the motor assembly and the transmission assembly are meshed through the bevel gear set; the transmission assembly is meshed with the 90° nozzle assembly or the 30-150° nozzle assembly through the bevel gear set, and the frame assembly is connected with the motor assembly, the 90° nozzle assembly and the 30-150° nozzle Assemblies, and open water supply channels for 90° nozzle assemblies and 30-150° nozzle assemblies in the frame assembly; the sensor assembly is installed on the frame assembly to ensure that the multi-directional jet nozzle is facing the center of the pipe gap.
- the direction of the water jet of the 90° nozzle assembly and the 30-150° nozzle assembly is consistent with the distribution of the heat transfer tube bundle, and the rotation angle of the two assemblies must meet the requirements for covering the cleaning distance of the tube bundle; after the motor assembly is powered, it can simultaneously drive the 90° nozzle assembly and the 30°
- the -150° nozzle assembly rotates at an appropriate angle, and through the forward and reverse rotation of the same motor, the two types of nozzles can be rotated at different angles at the same time.
- the direction of the water jet is facing the tubes, thereby meeting the full area coverage of the tube bundles. Requirements, reduce the replacement of equipment during the cleaning process, ensure the cleaning effect, improve cleaning efficiency, and reduce the exposure dose of on-site personnel.
- the cleaning device with multi-directional jets of the present invention has the following advantages: the power source is a motor assembly, and the 90° nozzle assembly and the 30-150° nozzle assembly are simultaneously driven by the transmission assembly to realize multi-directional jets at positions between each pipe Cleaning; the position and direction of the jet flow of the 90° nozzle assembly and the 30-150° nozzle assembly are consistent with the tubes arranged in the heat transfer tube bundle to ensure that the water flows into the tubes, and the design of the transmission system makes the 90° nozzle assembly and the 30- The rotation angle of the nozzle assembly of 150° meets the requirement of covering the entire area of cleaning in this direction; the design of the high-pressure water channel not only meets the requirements of space and strength, but also meets the requirements of flow and sealing, and meets the requirements of multi-jet angle cleaning structure in terms of high-pressure water supply traffic demand.
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Abstract
本发明公开了一种适用于蒸汽发生器的多方向射流清洗装置，包括框架组件、设置在所述框架组件上的传动组件、第一喷嘴组件和第二喷嘴组件、以及用于带动所述传动组件运转的电机组件；所述传动组件包括主传动机构、从传动机构、第二喷嘴传动机构以及用于实现所述主传动机构、从传动机构、第二喷嘴传动机构同步转动的同步带；所述电机组件用于驱动所述主传动机构转动；所述第二喷嘴传动机构上设置有第二喷嘴组件，所述主传动机构和/或从传动机构上设置有第一喷嘴组件；所述框架组件包括上盖和下盖，所述第一喷嘴组件和第二喷嘴组件设置在所述下盖上，所述下盖内开设有水流道，所述水流道与所述第二喷嘴组件和第一喷嘴组件连通。
Description
本发明涉及蒸汽发生器清洗技术领域，具体涉及一种适用于狭小空间内具有多方向射流的蒸汽发生器清洗装置。
蒸汽发生器是一种核电厂用来一二回路换热的重要设备，内部安装有多达上万根管束。核电厂每次停堆检修时，均要进行蒸汽发生器二次侧管束的清洗。随着三代核电技术蒸汽发生器的投用，其清洗技术和设备的开发也是必要的。如B&W公司设计的三代蒸汽发生器内部结构较为特别，传热管呈等边三角形排布，中心管廊区域无隔板、较为空旷，但中心管廊宽度较窄，只有约100mm；在保证射流参数和射流直线度的情况下，双侧对称布置喷嘴组件已无法实现，这给清洗机构的设计带来了较大的挑战。
现用的主流清洗机构分成两部分，一个是与中心管廊呈90°方向的清洗；一个是与中心管廊呈30°或150°方向的清洗；两个清洗机构交替使用，清洗时间较长；通常按照90°-30-150°-90°清洗的工艺顺序开展，但中间过程需要拆除更换清洗机构，增加了一定的人员受照剂量和劳动量。
申请号为201210550000.X、名称为“一种多喷嘴结构的泥渣冲洗枪”的中国发明专利，其公开了一种具有三个冲洗方向的冲洗枪，但是从其公开的内容可以看出，该冲洗枪斜向喷嘴组件只单侧布置，并不能满足双侧布置喷嘴和双侧喷嘴旋转方向一致的要求，同时并不清楚其如何实现电机与齿轮轴间传动以及该专利中水道的布置和流通设计。本领域的人员无法根据其公开的内容实现所述的多角度双侧非对称布置喷嘴的冲洗机构设计。所以亟需设计一种能够适应狭窄使用环境、无需更换、能够双侧非对称布置喷嘴实现多方向射流的高效清洗机构。
发明内容
有鉴于此，为了克服现有技术的缺陷，本发明的目的是提供一种适用于蒸汽发生器的多方向双侧布置喷嘴的射流清洗装置，能够实现双侧多方向射流高效清洗，清洗过程无需更换清洗机构。
为了达到上述目的，本发明采用以下的技术方案：
一种适用于蒸汽发生器的多方向射流清洗装置，包括框架组件、设置在所述框架组件上的传动组件、第一喷嘴组件和第二喷嘴组件、以及用于带动所述传动组件运转的电机组件；
所述传动组件包括主传动机构、从传动机构、第二喷嘴传动机构以及用于实现所述主传动机构、从传动机构、第二喷嘴传动机构同步转动的同步带；所述电机组件用于驱动所述主传动机构转动；所述第二喷嘴传动机构上设置有第二喷嘴组件，所述主传动机构和/或从传动机构上设置有第一喷嘴组件；
所述框架组件包括上盖和下盖，所述第一喷嘴组件和第二喷嘴组件设置在所述下盖上，多个所述第一喷嘴组件非对称地设置在所述下盖长度方向中心线的两侧，所述下盖内开设有水流道，所述水流道与所述第二喷嘴组件和第一喷嘴组件连通。所述第二喷嘴组件喷嘴的延伸方向和第一喷嘴组件喷嘴的延伸方向不平行，以实现不同方向的管束清洗。
本发明中将不同角度的喷嘴组件整合在同一个清洗装置中，不仅需要根据喷嘴的中心对准所述蒸汽发生器某管束间隙中心的原则进行所述第一喷嘴组件和第二喷嘴组件的位置设计，即其中一个喷嘴对准管束的间隙中心，剩余的喷嘴便自然对准对应的管束间隙中心。而且为满足清洗覆盖区域的要求，需要根据第一喷嘴组件和第二喷嘴组件所需的旋转角度范围设计所述传动机构的传动比，如在实现90°喷嘴组件旋转±75°的同时，30-150°喷嘴组件旋转±85°。
根据本发明的一些优选实施方面，所述电机组件包括电机以及位于所述电机输出端的第一锥齿轮，所述电机用于带动所述第一锥齿轮转动，所述第一锥齿轮与所述主传动机构接触。
根据本发明的一些优选实施方面，所述主传动机构包括第一转轴、由上至下依次套设在所述第一转轴外的第二锥齿轮、主同步轮、主直齿轮以及第三锥齿轮；所述第二锥齿轮与所述第一锥齿轮相啮合；所述第三锥齿轮与所述第一喷嘴组件相接触。
根据本发明的一些优选实施方面，所述从传动机构包括第二转轴以及由上至下依次套设在所述第二转轴外的从同步轮、从直齿轮和第四锥齿轮；所述第四锥齿轮与所述第一喷嘴组件相接触。
根据本发明的一些优选实施方面，所述主同步轮和从同步轮位于同一平面上，所述同步带套设在所述主同步轮和从同步轮上。
根据本发明的一些优选实施方面，所述第一喷嘴组件包括旋转轴以及依次 套设在所述旋转轴外的第一密封环、第一喷嘴锥齿轮、第一喷嘴轴承以及固定板和喷嘴支架，所述喷嘴支架上设置有第一喷嘴，所述旋转轴内开设有用于连通所述水流道和第一喷嘴的第一流道，所述固定板固定安装在所述下盖上，所述第一喷嘴锥齿轮与所述第三锥齿轮或第四锥齿轮相啮合。
根据本发明的一些优选实施方面，所述第一喷嘴组件包括过渡环和第一喷嘴副轴承，所述第一喷嘴副轴承和第一喷嘴轴承分别位于所述第一喷嘴锥齿轮的两侧，所述过渡环位于所述第一密封环和第一喷嘴副轴承之间；所述固定板与所述第一喷嘴轴承的外圈固定，所述过渡环与所述第一喷嘴副轴承的外圈固定，所述第一喷嘴轴承的内圈、第一喷嘴副轴承的内圈、第一喷嘴锥齿轮以及喷嘴支架与所述旋转轴固定连接。
根据本发明的一些优选实施方面，所述传动组件还包括与所述主传动机构和/或从传动机构接触的副传动机构，所述副传动机构包括第三转轴以及由上至下依次套设在所述第三转轴外的副直齿轮和副锥齿轮，所述副直齿轮与所述主直齿轮或从直齿轮相啮合，所述副传动机构上均对应设置有所述第一喷嘴组件，所述副锥齿轮与所述第一喷嘴锥齿轮相啮合。
根据本发明的一些优选实施方面，所述下盖上开设有用于容纳所述第一喷嘴组件中的部分组件的容纳槽以及供所述第一喷嘴锥齿轮漏出的驱动槽，所述第一喷嘴锥齿轮穿过所述驱动槽与所述主传动机构、从传动机构、副传动机构下端的锥齿轮相啮合。
根据本发明的一些优选实施方面，所述第二喷嘴传动机构包括第四转轴以及由上至下依次套设在所述第四转轴外的辅助同步轮、辅助轴承以及辅助锥齿轮，所述辅助轴承固定在所述下盖上，所述辅助同步轮与所述同步带接触并同步转动。
根据本发明的一些优选实施方面，所述第二喷嘴组件包括旋转架、套设在所述旋转架上的第二喷嘴锥齿轮、转动连接在所述旋转架两端的安装架以及设置在所述旋转架上的第二喷嘴，所述安装架固定安装在所述框架组件上，所述第二喷嘴锥齿轮与所述辅助锥齿轮相啮合，所述旋转架内开设有用于连通所述水流道和所述第二喷嘴的第二流道。
根据本发明的一些优选实施方面，所述旋转架与所述安装架之间设置有第二喷嘴轴承，所述旋转架的两端部设置有第二密封环；所述旋转架上设置有两个或多个第二喷嘴，第二喷嘴对称设置在所述第二喷嘴锥齿轮的两侧。
根据本发明的一些优选实施方面，所述第一转轴、第二转轴、第三转轴和第四转轴中心线不在沿框架组件长度方向一条直线上，所述转轴的上端均设置有主轴承，所述主轴承固定在所述上盖上；所述上盖与下盖之间形成腔体，所述主同步轮、从同步轮、主直齿轮、从直齿轮以及同步带容纳在所述腔体内。
根据本发明的一些优选实施方面，所述水流道包括水道主支段、连通所述水道主支段与第一流道的第一分支段、连通所述水道主支段与第二流道的第二分支段。在本申请的一些实施例中，为保证水流量，水道主支段截面设计为椭圆形，包括入口处的倾斜段和水平段，倾斜段由入口向下倾斜，水平段位于第一喷嘴组件和第二喷嘴组件的下方；第一分支段和第二分支段与水平段连通。第一分支段垂直设置，第二分支段倾斜设置。具体的，水平段的两侧均设置有一个第一喷嘴组件，两个第一分支段相互错开设置，分别分布在水平段轴心线的两侧。第二分支段与第二流道之间还设置有第二分支过渡段，第二分支段和第二分支过渡段垂直设置，以用于将水平段中的水流通过第二分支段和第二分支过渡段引入第二流道中。
根据本发明的一些优选实施方面，每个所述第一喷嘴组件设置在所述水道主支段延伸方向的其中一侧，每组两个所述第一喷嘴组件非对称设置在所述水道主支段的两侧；每组两个所述第一喷嘴组件对应的第一分支段与所述水道主支段的连接处分别位于椭圆形的水道主支段短轴的两侧且关于所述短轴非对称。
根据本发明的一些优选实施方面，所述传动组件包括张紧机构，所述张紧机构包括固定座、固定在所述固定座上的固定轴以及调节同步轮，所述调节同步轮与所述同步带接触并同步转动。
根据本发明的一些优选实施方面，所述下盖上设置有一组第二喷嘴组件以及对称设置在所述第二喷嘴组件两侧的第一喷嘴组件，所述第二喷嘴传动机构设置在所述主传动机构和从传动机构之间，所述第一喷嘴组件中喷嘴的射流方向均朝向管隙中心。
由于采用了上述技术方案，与现有技术相比，本发明的有益之处在于：本发明的适用于蒸汽发生器的多方向射流清洗装置，结构设计合理、紧凑，将90°喷嘴组件和30-150°喷嘴组件整合在同一个清洗装置内，实现双侧非对称布置喷嘴，实现多方向射流高效清洗，解决了不同射流角度清洗机构更换和清洗效率的问题。
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明优选实施例中多方向射流清洗装置的第一视角的立体图；
图2为本发明优选实施例中多方向射流清洗装置的第二视角的立体图；
图3为本发明优选实施例中多方向射流清洗装置的主视图；
图4为本发明优选实施例的多方向射流清洗装置中电机组件的立体图；
图5为本发明优选实施例的多方向射流清洗装置中传动组件的立体图；
图6为本发明优选实施例的多方向射流清洗装置中第一喷嘴组件的立体图；
图7为本发明优选实施例的多方向射流清洗装置中第一喷嘴组件的截面图；
图8为本发明优选实施例的多方向射流清洗装置中第二喷嘴组件的立体图；
图9为本发明优选实施例的多方向射流清洗装置中第二喷嘴组件的截面图；
图10为本发明优选实施例的多方向射流清洗装置中下盖的立体图；
图11为本发明优选实施例的多方向射流清洗装置中下盖的俯视图；
图12为图11中H-H的剖面图；
图13为本发明优选实施例的多方向射流清洗装置的下盖中水流道的示意图；
附图中，1、电机组件；11、电机密封壳；12、电机；13、第一锥齿轮；14、密封盖；2、传动组件；21、主传动机构；211、第一转轴；212、第二锥齿轮；213、主同步轮；214、主直齿轮；215、第三锥齿轮；22、从传动机构；221、第二转轴；222、从同步轮；223、从直齿轮；224、第四锥齿轮；23、副传动机构；231、第三转轴；232、副直齿轮；233、副锥齿轮；24、第二喷嘴传动机构；241、第四转轴；242、辅助同步轮；243、辅助轴承；244、辅助锥齿轮；245、固定螺母；25、张紧机构；251、固定座；252、固定轴；253、调节同步轮；26、同步带；27、主轴承；3、30-150°喷嘴组件；31、旋转轴；32、第一密封环； 33、过渡环；34、第一喷嘴副轴承；35、第一喷嘴锥齿轮；36、第一喷嘴轴承；37、固定板；38、喷嘴支架；39、第一喷嘴；310、第一流道；4、90°喷嘴组件；41、安装架；42、第二喷嘴轴承；43、旋转架；44、第二喷嘴锥齿轮；45、第二喷嘴；46、第二密封环；47、第二流道；5、进水口；6、框架组件；61、上盖；62、下盖；621、水道主支段；622、30-150°分支段；623、90°分支段；625、把手；626、减重槽；627、容纳槽；628、驱动槽、63、连接板；64、限位块；7、传感器组件；71、旋转支架；72、安装板；73、接近传感器。
为了使本技术领域的人员更好地理解本发明的技术方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
本发明的目的是提供一种适用于核电站蒸汽发生器多方向射流清洗装置，克服目前国内外核电站使用的单一射流方向清洗机构工作过程中更换、拆卸不便、工作效率低等不足。本发明采用电机组件利用传动组件同时驱动30-150°喷嘴组件(第一喷嘴组件)和90°喷嘴组件(第二喷嘴组件)水射流在管束间旋转，进而满足管束间全区域覆盖的要求，保障清洗效果的同时清洗效率更佳。本发明的重点在于如何在保证整个清洗装置宽度尺寸较小的前提下，设置双侧多个非对称第一喷嘴组件以及第二喷嘴组件达到多方向射流的目的，以更好地进行清洗。
如图1-13所示，本实施例中的适用于蒸汽发生器的多方向射流清洗装置，包括框架组件6、设置在框架组件6上的传动组件2、第一喷嘴组件和第二喷嘴组件、以及用于带动传动组件2运转的电机组件11。本实施例中的第一喷嘴组件即为30-150°喷嘴组件3，第二喷嘴组件即为90°喷嘴组件4。传动组件2包括主传动机构21、从传动机构22、第二喷嘴传动机构24、副传动机构23以及用于实现主传动机构21、从传动机构22、第二喷嘴传动机构24、副传动机构23同步转动的同步带26，电机组件11用于驱动主传动机构21转动。框架组件6包括上盖61和下盖62，第一喷嘴组件和第二喷嘴组件设置在下盖62上，下盖62内开设有水流道，水流道与第二喷嘴组件和第一喷嘴组件连通实现供水。第二喷嘴组件喷嘴的延伸方向和第一喷嘴组件喷嘴的延伸方向不平行，以实现不同方向的管束清洗。
以下对各个部件做详细的说明：
1.第一喷嘴组件
如图6-7所示，本实施例中的30-150°喷嘴组件3(第一喷嘴组件)，包括旋转轴31、依次套设在旋转轴31外的第一密封环32、过渡环33、第一喷嘴副轴承34、第一喷嘴锥齿轮35、第一喷嘴轴承36、固定板37、喷嘴支架38、以及设置在喷嘴支架38上的第一喷嘴39，第一喷嘴39用以保证水射流的线性进而保障清洗效果。第一喷嘴副轴承34和第一喷嘴轴承36分别位于第一喷嘴锥齿轮35的两侧，过渡环33位于第一密封环32和第一喷嘴副轴承34之间。
固定板37与第一喷嘴轴承36的外圈固定，过渡环33与第一喷嘴副轴承34的外圈固定，第一喷嘴轴承36的内圈、第一喷嘴副轴承34的内圈、第一喷嘴锥齿轮35以及喷嘴支架38与旋转轴31固定连接。旋转轴31内开设有用于连通水流道和第一喷嘴39的第一流道310，固定板37固定安装在下盖62上，第一喷嘴锥齿轮35与传动组件2中的锥齿轮相啮合。
2.第二喷嘴组件
如图7-8所示，本实施例中的90°喷嘴组件4(第二喷嘴组件)包括旋转架43、套设在旋转架43上的第二喷嘴锥齿轮44、连接在旋转架43两端的安装架41、安装在旋转架43与安装架41之间的第二喷嘴轴承42以及设置在旋转架43上的第二喷嘴45，安装架41固定安装在框架组件6上，第二喷嘴锥齿轮44与第二喷嘴传动机构24上的锥齿轮相啮合，旋转架43内开设有用于连通水流道和第二喷嘴45的第二流道47。旋转架43的两端部设置有第二密封环46。本实施例中旋转架43上关于第二喷嘴锥齿轮44对称设置有两个第二喷嘴45。
3.电机组件11
如图4所示，本实施例中的电机组件11安装在框架组件6的上盖61上，包括电机密封壳11、电机12、第一锥齿轮13、密封盖14。电机12的输出轴与第一锥齿轮13相连接，用于带动第一锥齿轮13转动；电机密封壳11内安装有电机12，并与密封盖14共同为电机12形成一个密封环境。
4.传动组件2
如图5所示，本实施例中的传动组件2包括同步带26以及与同步带26相接触的主传动机构21、从传动机构22、第二喷嘴传动机构24、张紧机构25以及由主传动机构21或从传动机构22带动转动的副传动机构23。
主传动机构21包括第一转轴211、由上至下依次套设在第一转轴211外的主 轴承27、第二锥齿轮212、主同步轮213、主直齿轮214、辅助轴承243以及第三锥齿轮215；第二锥齿轮212与第一锥齿轮13相啮合；第三锥齿轮215与第一喷嘴组件的第一喷嘴锥齿轮35相啮合。
从传动机构22包括第二转轴221以及由上至下依次套设在第二转轴221外的主轴承27、从同步轮222、从直齿轮223、辅助轴承243和第四锥齿轮224；第四锥齿轮224与第一喷嘴组件的第一喷嘴锥齿轮35相啮合。主同步轮213和从同步轮222位于同一平面上，同步带26套设在主同步轮213和从同步轮222上。
副传动机构23包括第三转轴231以及由上至下依次套设在第三转轴231外的主轴承27、副直齿轮232、辅助轴承243和副锥齿轮233，副直齿轮232与主直齿轮214或从直齿轮223相啮合，副传动机构23上均对应设置有第一喷嘴组件，副锥齿轮233与第一喷嘴锥齿轮35相啮合。
第二喷嘴传动机构24包括第四转轴241以及由上至下依次套设在第四转轴241外的主轴承27、辅助同步轮242、固定螺母245、辅助轴承243以及辅助锥齿轮244，辅助锥齿轮244与第二喷组组件中的第二喷嘴锥齿轮44形成伞形齿轮组。固定螺母245和辅助轴承243固定在下盖62上，辅助同步轮242与同步带26接触并同步转动。
张紧机构25包括固定座251、固定在固定座251上的固定轴252以及调节同步轮253，调节同步轮253与同步带26接触并同步转动。固定座251上具有调节槽，通过调节槽及其内的固定件实现调节同步轮253位置的移动，进而对同步带26的张力进行调节。
本实施例中，第一转轴211、第二转轴221、第三转轴231和第四转轴241的上端均设置有主轴承27、下端在锥齿轮的上方均设置有辅助轴承243，主轴承27固定在上盖61上。上盖61与下盖62之间形成腔体，主同步轮213、从同步轮222、主直齿轮214、从直齿轮223以及同步带26容纳在腔体内。通过主轴承27和辅助轴承243保证各个传动机构的位置以及运转的稳定。
5.框架组件6
如图1-3以及图10-13所示，本实施例中的框架组件6包括上盖61、下盖62、连接板63和限位块64。下盖62内部设置有高压水流道，包括：水道主支段621、连通水道主支段621至30-150°喷嘴组件3的第一流道310处的30-150°分支段622、连通水道主支段621至90°喷嘴组件4第二流道47处的90°分支段623。高压水由进水口5进入水道主支段621，通过30-150°分支段622进入第一流道310， 进而进入第一喷嘴组件中，由第一喷嘴39喷出；通过90°分支段623进入第二流道47中，进而进入第二喷嘴组件中，由第二喷嘴45喷出。
如图11-13所示，本实施例中的水道主支段621截面设计为椭圆形，包括入口处的倾斜段和水平段，倾斜段由入口向下倾斜，水平段位于第一喷嘴组件和第二喷嘴组件的下方；第一分支段622和第二分支段623与水平段连通。第一分支段622垂直于水平段，第二分支段623倾斜设置。具体的，水平段的两侧均设置有一个第一喷嘴组件，两个第一分支段622相互错开设置，分别分布在水平段轴心线的两侧，即分别位于椭圆形的水道主支段短轴的两侧且关于该短轴非对称。第二分支段623与第二流道47之间还设置有第二分支过渡段，第二分支段623和第二分支过渡段垂直设置，以用于将水平段中的水流通过第二分支段623和第二分支过渡段引入第二流道47中。通过上述水道的设置，在保证装置结构紧凑的同时，实现水道的贯通，且水道的制作相对方便。如制作第二分支段623时，从外向内贯通第二分支过渡段和水平段，之后再将第二分支段623的外端封堵，其他水道的开设也采用类似的方式。
如图11所示，两组第一喷嘴组件对称设置在下盖宽度方向中心线(图11的竖直方向)的两侧，每组两个第一喷嘴组件非对称设置在下盖长度方向中心线(图11的水平方向)的两侧；同时，如图5所示，对应的传动机构无法分布在同一直线上，第一转轴、第二转轴、第三转轴和第四转轴中心线不在沿框架组件长度方向一条直线上，采用同步带同步驱动。通过这样的设置，清洗装置结构紧凑，同时能够保证传动效果和清洗效果。
本实施例中为了保证强度的同时方便携拿，下盖62上加工有多处减重槽626；其中一处设置为把手625。上盖61和下盖62通过螺栓和密封条连接，连接板63和限位块64安装在下盖62的底端，方便整个清洗装置与其它移动载体相匹配；进水口5安装在下盖62的端面，并与水道主支段621相连通。
本实施例中下盖62上开设有用于容纳第一喷嘴组件中的部分组件的容纳槽627以及供第一喷嘴锥齿轮35漏出的驱动槽628，第一喷嘴锥齿轮35穿过驱动槽628与主传动机构21、从传动机构22、副传动机构23下端的锥齿轮相啮合。
本实施例中的下盖62上设置有一个第二喷嘴组件以及对称设置在第二喷嘴组件两侧的四个第一喷嘴组件，四个第一喷嘴组件中喷嘴的射流方向均不相同，且不同于第二喷嘴的射流方向，以实现不同方向的管束清洗。第二喷嘴传动机构24设置在主传动机构21和从传动机构22之间。
本实施例中的上盖61上还安装有传感器组件7，包括安装板72、安装在安装板72上的接近传感器73；安装板72通过旋转支架71安装于上盖61上，以调整安装板72的角度。接近传感器73用来控制其它移动载体的精确位移，使得喷嘴能够对准管隙中心，有些情况下，也可更换为小型摄像头。
本发明的核电站蒸汽发生器多方向射流清洗装置包括电机组件、传动组件、30-150°喷嘴组件、90°喷嘴组件、进水口、框架组件和传感器组件。电机组件与传动组件通过锥齿轮组进行啮合；传动组件与90°喷嘴组件或30-150°喷嘴组件通过锥齿轮组啮合，框架组件连接安装有电机组件、90°喷嘴组件和30-150°喷嘴组件，并在框架组件内开设供90°喷嘴组件和30-150°喷嘴组件的供水通道；传感器组件安装于框架组件上，用来保证多方向射流喷嘴正对管隙中心。90°喷嘴组件和30-150°喷嘴组件水射流方向与传热管管束分布一致，并且两组件旋转角度需满足覆盖管束清洗距离的要求；电机组件供电后，能够同时驱动90°喷嘴组件和30-150°喷嘴组件按照适当的角度进行旋转，并通过同一个电机的正转和反转同时实现两种喷嘴的不同角度的转动，水射流方向正对管间，进而满足管束间全区域覆盖的要求，减少清洗工作过程中的设备更换，保障了清洗效果，也能提升清洗效率，减少现场操作的人员受照剂量。
本发明的具有多方向射流的清洗装置，具有如下优势：动力源为一个电机组件，通过传动组件同时驱动90°喷嘴组件和30-150°喷嘴组件，实现每一管间位置处的多方向射流清洗；90°喷嘴组件和30-150°喷嘴组件射流的位置及方向与传热管管束排布的管间一致，确保水流射入管间，同时传动系统的设计使得90°喷嘴组件和30-150°喷嘴组件旋转角度满足覆盖该方向全区域清洗的要求；高压水道的设计，使得既满足空间和强度的要求，又满足流量和密封的需求，在高压水供给方面满足多射流角度清洗结构的流量需求。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围，凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。
Claims (14)
- 一种适用于蒸汽发生器的多方向射流清洗装置，其特征在于，包括框架组件、设置在所述框架组件上的传动组件、第一喷嘴组件和第二喷嘴组件、以及用于带动所述传动组件运转的电机组件；所述传动组件包括主传动机构、从传动机构、第二喷嘴传动机构以及用于实现所述主传动机构、从传动机构、第二喷嘴传动机构同步转动的同步带；所述电机组件用于驱动所述主传动机构转动；所述第二喷嘴传动机构上设置有第二喷嘴组件，所述主传动机构和/或从传动机构上设置有第一喷嘴组件；所述框架组件包括上盖和下盖，所述第一喷嘴组件和第二喷嘴组件设置在所述下盖上，多个所述第一喷嘴组件非对称地设置在所述下盖长度方向中心线的两侧，所述下盖内开设有水流道，所述水流道与所述第二喷嘴组件和第一喷嘴组件连通。
- 根据权利要求1所述的多方向射流清洗装置，其特征在于，所述电机组件包括电机以及位于所述电机输出端的第一锥齿轮，所述电机用于带动所述第一锥齿轮转动，所述第一锥齿轮与所述主传动机构接触。
- 根据权利要求2所述的多方向射流清洗装置，其特征在于，所述主传动机构包括第一转轴、由上至下依次套设在所述第一转轴外的第二锥齿轮、主同步轮、主直齿轮以及第三锥齿轮；所述第二锥齿轮与所述第一锥齿轮相啮合；所述第三锥齿轮与所述第一喷嘴组件相接触。
- 根据权利要求3所述的多方向射流清洗装置，其特征在于，所述从传动机构包括第二转轴以及由上至下依次套设在所述第二转轴外的从同步轮、从直齿轮和第四锥齿轮；所述第四锥齿轮与所述第一喷嘴组件相接触。
- 根据权利要求4所述的多方向射流清洗装置，其特征在于，所述第一喷嘴组件包括旋转轴以及依次套设在所述旋转轴外的第一密封环、过渡环、第一喷嘴副轴承、第一喷嘴锥齿轮、第一喷嘴轴承以及固定板和喷嘴支架，所述喷嘴支架上设置有第一喷嘴，所述旋转轴内开设有用于连通所述水流道和第一喷嘴的第一流道，所述固定板固定安装在所述下盖上，所述第一喷嘴锥齿轮与所述第三锥齿轮或第四锥齿轮相啮合；所述第一喷嘴副轴承和第一喷嘴轴承分别位于所述第一喷嘴锥齿轮的两侧，所述过渡环位于所述第一密封环和第一喷嘴副轴承之间；所述固定板与所述第一喷嘴轴承的外圈固定，所述过渡环与所述第一喷嘴副轴承的外圈固定，所述第一喷嘴轴承的内圈、第一喷嘴副轴承的内圈、第一喷嘴锥齿轮以及喷嘴支架与所述旋转轴固定连接。
- 根据权利要求4所述的多方向射流清洗装置，其特征在于，所述传动组件还包括与所述主传动机构和/或从传动机构接触的副传动机构，所述副传动机构包括第三转轴以及由上至下依次套设在所述第三转轴外的副直齿轮和副锥齿轮，所述副直齿轮与所述主直齿轮或从直齿轮相啮合，所述副传动机构上均对应设置有所述第一喷嘴组件，所述副锥齿轮与所述第一喷嘴锥齿轮相啮合。
- 根据权利要求6所述的多方向射流清洗装置，其特征在于，所述下盖上开设有用于容纳所述第一喷嘴组件中的部分组件的容纳槽以及供所述第一喷嘴锥齿轮漏出的驱动槽，所述第一喷嘴锥齿轮穿过所述驱动槽与所述主传动机构、从传动机构、副传动机构下端的锥齿轮相啮合；所述下盖上设置有一组第二喷嘴组件以及对称设置在所述第二喷嘴组件两侧的两组第一喷嘴组件，每组第一喷嘴组件包括两个所述第一喷嘴组件；所述第二喷嘴传动机构设置在所述主传动机构和从传动机构之间，所述上盖上设置有传感器组件，用于辅助定位喷嘴对准管隙中心。
- 根据权利要求6所述的多方向射流清洗装置，其特征在于，所述第二喷嘴传动机构包括第四转轴以及由上至下依次套设在所述第四转轴外的辅助同步轮、辅助轴承以及辅助锥齿轮，所述辅助轴承固定在所述下盖上，所述辅助同步轮与所述同步带接触并同步转动。
- 根据权利要求8所述的多方向射流清洗装置，其特征在于，所述第二喷嘴组件包括旋转架、套设在所述旋转架上的第二喷嘴锥齿轮、连接在所述旋转架两端的安装架以及设置在所述旋转架上的第二喷嘴，所述安装架固定安装在所述框架组件上，所述第二喷嘴锥齿轮与所述辅助锥齿轮相啮合，所述旋转架内开设有用于连通所述水流道和所述第二喷嘴的第二流道。
- 根据权利要求9所述的多方向射流清洗装置，其特征在于，所述旋转架与所述安装架之间设置有第二喷嘴轴承，所述旋转架的两端部设置有第二密封环；所述旋转架上设置有两个或多个第二喷嘴，第二喷嘴对称设置在所述第二喷嘴锥齿轮的两侧。
- 根据权利要求9所述的多方向射流清洗装置，其特征在于，所述第一转轴、第二转轴、第三转轴和第四转轴上端均设置有主轴承，所述主轴承固定在所述上盖上；所述上盖与下盖之间形成腔体，所述主同步轮、从同步轮、主直齿轮、从直齿轮以及同步带容纳在所述腔体内。
- 根据权利要求9所述的多方向射流清洗装置，其特征在于，所述水流 道包括水道主支段、连通所述水道主支段与第一流道的第一分支段、连通所述水道主支段与第二流道的第二分支段；所述水道主支段截面为椭圆形。
- 根据权利要求12所述的多方向射流清洗装置，其特征在于，所述第一喷嘴组件设置在所述水道主支段延伸方向的其中一侧，每组两个所述第一喷嘴组件非对称设置在所述水道主支段的两侧；每组两个所述第一喷嘴组件对应的第一分支段与所述水道主支段的连接处分别位于椭圆形的水道主支段短轴的两侧且关于所述短轴非对称。
- 根据权利要求9所述的多方向射流清洗装置，其特征在于，所述传动组件包括张紧机构，所述张紧机构包括固定座、固定在所述固定座上的固定轴以及调节同步轮，所述调节同步轮与所述同步带接触并张紧同步带实现所有同步带接触的同步轮转动。
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD138281A1 (de) * | 1978-09-18 | 1979-10-24 | Dietmar Ehrlich | Einrichtung zum reinigen |
| EP0696719A1 (fr) * | 1994-08-12 | 1996-02-14 | Framatome | Dispositif de nettoyage par jet de liquide d'une plaque tubulaire d'un échangeur de chaleur et utilisation |
| US20050235927A1 (en) * | 2004-04-23 | 2005-10-27 | Hwang Kwon S | Lance system for inter-tube inspecting and lancing as well as barrel spraying of heat transfer tubes of steam generator in nuclear power plant |
| CN201886795U (zh) * | 2010-12-02 | 2011-06-29 | 核动力运行研究所 | 用于传热管呈三角形排列蒸汽发生器泥渣枪枪头 |
| US8238510B2 (en) * | 2007-07-03 | 2012-08-07 | Westinghouse Electric Company Llc | Steam generator dual head sludge lance and process lancing system |
| CN103861830A (zh) * | 2012-12-17 | 2014-06-18 | 核动力运行研究所 | 一种多喷嘴结构的泥渣冲洗枪 |
| CN204478915U (zh) * | 2014-12-30 | 2015-07-15 | 中核武汉核电运行技术股份有限公司 | 一种适用于三角型ap1000蒸发器的斜向喷嘴传动装置 |
| FR3025931A1 (fr) * | 2014-09-16 | 2016-03-18 | Sra Savac | Dispositif de guidage pour lance flexible |
| CN108421780A (zh) * | 2018-03-15 | 2018-08-21 | 苏州热工研究院有限公司 | 一种蒸汽发生器的清洗和视频检查装置及其使用方法 |
| CN109967422A (zh) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | 一种用于蒸汽发生器二次侧管板泥渣高压水冲洗喷嘴 |
| CN209663841U (zh) * | 2018-12-21 | 2019-11-22 | 核动力运行研究所 | 一种用于带中心隔板的蒸汽发生器管板泥渣冲洗的枪体 |
-
2021
- 2021-09-29 WO PCT/CN2021/121734 patent/WO2023050161A1/zh unknown
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD138281A1 (de) * | 1978-09-18 | 1979-10-24 | Dietmar Ehrlich | Einrichtung zum reinigen |
| EP0696719A1 (fr) * | 1994-08-12 | 1996-02-14 | Framatome | Dispositif de nettoyage par jet de liquide d'une plaque tubulaire d'un échangeur de chaleur et utilisation |
| US20050235927A1 (en) * | 2004-04-23 | 2005-10-27 | Hwang Kwon S | Lance system for inter-tube inspecting and lancing as well as barrel spraying of heat transfer tubes of steam generator in nuclear power plant |
| US8238510B2 (en) * | 2007-07-03 | 2012-08-07 | Westinghouse Electric Company Llc | Steam generator dual head sludge lance and process lancing system |
| CN201886795U (zh) * | 2010-12-02 | 2011-06-29 | 核动力运行研究所 | 用于传热管呈三角形排列蒸汽发生器泥渣枪枪头 |
| CN103861830A (zh) * | 2012-12-17 | 2014-06-18 | 核动力运行研究所 | 一种多喷嘴结构的泥渣冲洗枪 |
| FR3025931A1 (fr) * | 2014-09-16 | 2016-03-18 | Sra Savac | Dispositif de guidage pour lance flexible |
| CN204478915U (zh) * | 2014-12-30 | 2015-07-15 | 中核武汉核电运行技术股份有限公司 | 一种适用于三角型ap1000蒸发器的斜向喷嘴传动装置 |
| CN109967422A (zh) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | 一种用于蒸汽发生器二次侧管板泥渣高压水冲洗喷嘴 |
| CN108421780A (zh) * | 2018-03-15 | 2018-08-21 | 苏州热工研究院有限公司 | 一种蒸汽发生器的清洗和视频检查装置及其使用方法 |
| CN209663841U (zh) * | 2018-12-21 | 2019-11-22 | 核动力运行研究所 | 一种用于带中心隔板的蒸汽发生器管板泥渣冲洗的枪体 |
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