CN112571363A - Hoop mounting method and hoop mounting method of steam generator - Google Patents
Hoop mounting method and hoop mounting method of steam generator Download PDFInfo
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- CN112571363A CN112571363A CN202011346520.XA CN202011346520A CN112571363A CN 112571363 A CN112571363 A CN 112571363A CN 202011346520 A CN202011346520 A CN 202011346520A CN 112571363 A CN112571363 A CN 112571363A
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- hoop
- installed part
- steam generator
- rolling device
- mounting method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
Abstract
The invention relates to a hoop mounting method and a hoop mounting method of a steam generator. The hoop mounting method comprises the following steps: rotating the installed part around the axis direction of the installed part to enable the installation angle of the installed part to be matched with the installation angle of the embracing ring, and then sleeving the embracing ring on the outer side of the installed part; rotate once more by the installed part, embrace the ring and can rotate with by the installed part synchronization for two interfaces on embracing the ring are located respectively by the both sides of installed part along the horizontal direction, then will embrace the ring and hug closely by the installed part relatively. The hoop mounting method provided by the invention actively adapts to the mounting angle of the hoop by rotating the mounted piece, then rotates the selected hoisting point, and reduces the weighing size at the hoop interface, thereby reducing the shearing force borne by the connecting component at the hoop interface, reducing the risk of easy fracture of the hoop, and improving the stability of hoop mounting.
Description
Technical Field
The invention relates to the technical field of nuclear power plants, in particular to a hoop mounting method and a hoop mounting method of a steam generator.
Background
The steam generator is a key device of a reactor system of a nuclear power plant and is used as a heat exchange device to transfer heat in a primary loop coolant to a secondary loop feed water to generate saturated steam to be supplied to a secondary loop power plant. Under the accident condition, the steam generator can also be used as a reactor 'hot trap' to lead out the heat of a reactor core, and a second barrier for preventing radioactivity leakage can be formed between the first loop and the second loop, so that the equipment of the second loop is not polluted. The steam generator is also the heaviest and largest weight and volume equipment of the nuclear reactor plant monomer, and the hoisting in place of the steam generator is always the key work of the whole nuclear power plant construction. At present, most of steam generators of nuclear power projects use an overturning hoop, after the steam generators are introduced into a nuclear reactor plant, the steam generators are overturned in place in the plant by utilizing the hoop crane, and the final overturning hoisting operation of the steam generators is directly influenced by the quality of the installing quality of the overturning hoop. However, in actual operation, the hoisting point of the turnover hoop is not easy to select, and the hoop is easy to eccentrically shake during hoisting. And the whole turnover type embracing ring is carried out, the embracing ring falls down under the gravity, and parts such as fastening bolts in the embracing ring are subjected to shearing force and have the risk of fracture.
Disclosure of Invention
Therefore, it is necessary to provide a hoop mounting method for solving the technical problems that the stability is low and the hoop is prone to fracture due to the existence of shearing force when the hoop is mounted relative to a steam generator in the prior art.
A hoop mounting method comprises the following steps:
rotating the installed part around the axis direction of the installed part to enable the installation angle of the installed part to be matched with the installation angle of the embracing ring, and then sleeving the embracing ring on the outer side of the installed part; rotate once more by the installed part, embrace the ring and can rotate with by the installed part synchronization for two interfaces on embracing the ring are located respectively by the both sides of installed part along the horizontal direction, then will embrace the ring and hug closely by the installed part relatively.
In one embodiment, before the installed part rotates, the installed part is hoisted and placed on an active rolling device, and the installed part can be driven to rotate around the axis of the installed part through the active rolling device.
In one embodiment, before the installed part rotates, the installed part is hoisted and placed on the driven rolling device, and the driven rolling device and the driving rolling device are arranged at intervals; the installed part can drive the driven rolling device to rotate under the driving of the driving rolling device.
In one embodiment, the height of the active rolling device and the height of the driven rolling device are adjusted according to the diameter sizes of different positions of the installed part.
In one embodiment, after the installed part is hoisted to the driving rolling device and the driven rolling device, the supporting seat installed at the bottom of the installed part is removed.
In one embodiment, when the embracing ring is hoisted relative to the installed part, the two interfaces on the embracing ring are respectively positioned at two sides along the vertical direction, and then the embracing ring is sleeved at the outer side of the installed part along the axial direction of the installed part.
In one embodiment, before the hoop is sleeved in the installed piece, the connecting pipe package on the installed piece at the hoop installation position is detached, and the connecting pipe is temporarily protected.
In one embodiment, the embracing ring sleeved into the installed part rotates relative to the installed part, so that the levelness of the lifting trunnions on the installed part and the levelness of the trunnions on the embracing ring are less than 2 mm.
In one embodiment, a balancing weight is arranged at one end of the mounted part far away from the embracing ring.
In one embodiment, the balancing weight is placed on the pushing member, then the balancing weight is pushed into the lower part of the installed part by the pushing member, and the balancing weight is tightly tied to the installed part by the hanging belt.
In one embodiment, the hoisting piece for hoisting the installed piece is loosened before the hoop is sleeved, the hoop is configured relative to the installed piece after the hoop is completed, the hoisting piece is fixed again, and the installed piece provided with the hoop is hoisted.
The invention also provides a hoop mounting method of the steam generator, which comprises the following steps:
rotating the steam generator around the axis direction of the steam generator to enable the installation angle of the steam generator to be matched with that of the embracing ring, and then sleeving the embracing ring on the outer side of the steam generator; rotate steam generator once more, the armful encircles and steam generator synchronous revolution to two interfaces on the armful can be located steam generator along the both sides of horizontal direction respectively, then will embrace and encircle steam generator tightly relatively.
The invention has the beneficial effects that:
according to the hoop mounting method provided by the invention, in practical use, the mounted part rotates around the axis direction of the mounted part, so that the mounting angle of the mounted part is adapted to that of the hoop, and then the hoop is sleeved on the outer side of the mounted part. Rotate once more by the installed part, embrace the ring and can rotate with by the installed part synchronization for two interfaces on embracing the ring are located respectively by the both sides of installed part along the horizontal direction, then will embrace the ring and embrace relatively by the installed part and hug closely, realize embracing the ring and be installed by the installed part relatively. That is, the hoop installation method actively adapts the installed piece to the installation angle of the hoop through rotating the installed piece, so that the hoop is sleeved in a positive interface mode relative to the installed piece. Make simultaneously by the installed part rotate once more, and then make two interfaces on the armful ring be located respectively by the both sides of installed part along the horizontal direction, so when hoist and mount by the installed part to installing the armful ring, along with by the lifting by the installed part, can not exert to one of them kneck by the gravity of installed part, and then reduce the size of weighing of armful interface department to reduce the shearing force that armful interface department adapting unit bore, reduce the easy cracked risk of armful ring. Meanwhile, the hoisting point of the installed part can be conveniently selected through the operation, the influence of shearing force borne by the interface is not needed to be particularly considered, the problem that the hooping ring eccentrically shakes due to the error in the hoisting point selection is solved, and the stability of the hooping ring relative to the installed part in the hoisting process can be improved by adopting the hooping ring installation method.
According to the hoop mounting method of the steam generator, when the hoop mounting method is in actual use, the steam generator is rotated around the axis direction of the steam generator, so that the mounting angle of the steam generator is matched with that of the hoop, and then the hoop is sleeved on the outer side of the steam generator; rotate steam generator once more so that select the hoist and mount point, the armful ring can rotate with steam generator is synchronous to two interfaces on the armful ring can be located steam generator along the both sides of horizontal direction respectively, then will embrace and embrace relative steam generator and hug closely, realize embracing the installation of embracing relative steam generator, can realize above-mentioned at least one technological effect.
Drawings
Fig. 1 is a flowchart of a hoop mounting method according to an embodiment of the present invention;
fig. 2 is a flowchart of a hoop mounting method of a steam generator according to an embodiment of the present invention;
fig. 3 is a partial schematic view of the upper portion of the device to be installed and lifted and rolled in the hoop installation method according to the embodiment of the present invention;
fig. 4 is a schematic diagram of a simple part of a mounted member with a hoop and a counterweight according to the hoop mounting method of the present invention;
fig. 5 is a partial schematic view of a hoop in the hoop mounting method according to the embodiment of the present invention.
Icon: 10-a mounted member; 20-looping; 21-an interface; 30-a balancing weight; 41-active rolling device; 42-a driven tumbling device; 50-a support seat; 60-hoisting parts; 70-a sling; 411-motor; 412-a drive wheel; 413-a first mount; 421-driven wheel; 422-second mount.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
As shown in fig. 1, fig. 3, fig. 4 and fig. 5, an embodiment of the present invention provides a hoop mounting method, including the following steps: rotating the installed part 10 around the axis direction thereof to make the installation angle of the installed part 10 adapted to the installation angle of the hoop 20, and then sleeving the hoop 20 on the outer side of the installed part 10; when the installed part 10 is rotated again, the hoop 20 can rotate synchronously with the installed part 10, so that the two interfaces 21 on the hoop 20 are respectively located at two sides of the installed part 10 in the horizontal direction, and then the hoop 20 is clasped relative to the installed part 10.
That is to say, when the hoop 20 needs to be installed relative to the installed part 10, the installed part 10 is rotated around its axis direction, so that the installation angle of the installed part 10 can actively adapt to the installation angle of the hoop 20, and the hoop 20 can be sleeved on the outer side of the installed part 10 in a positive interface manner relative to the installed part 10. When the hoop 20 is tightened relative to the mounted part 10, the driven mounted part 10 is driven to rotate again, and the hoop 20 tightened on the mounted part 10 rotates synchronously with the mounted part 10, so that the two interfaces 21 on the hoop 20 are respectively located at two sides of the mounted part 10 in the horizontal direction. Namely, when the mounted member 10 is horizontally placed in a side view, the two interfaces 21 on the hoop 20 are respectively located on the left and right sides of the mounted member 10. And then the clasps 20 are completely clasped relative to the mounted part 10, so that the clasps 20 are mounted relative to the mounted part 10. Then when the installed part 10 provided with the hoop 20 is hoisted, along with the hoisting of the installed part 10, the gravity of the installed part 10 is not applied to one of the interfaces 21, and the weighing size of the interfaces 21 of the hoop 20 is further reduced, so that the shearing force borne by the connecting part at the interfaces 21 on the hoop 20 is reduced, and the risk that the hoop 20 is prone to fracture is reduced. Meanwhile, the hoisting point of the installed part 10 can be conveniently selected through the operation, the influence of the shearing force borne by the interface 21 is not needed to be particularly considered, so that the problem that the hoop 20 eccentrically shakes due to the error in hoisting point selection is solved, and the stability of the hoop 20 relative to the installed part 10 in the hoisting process can be improved by adopting the hoop mounting method.
The above-mentioned positive interface manner is nested into the installed part 10, and actually means that the two interfaces 21 of the hoop 20 can be respectively located at two sides of the installed part 10 in the vertical direction, or even the two interfaces 21 of the hoop 20 can be respectively located at two sides of the installed part 10 in the horizontal direction. That is, the positive interface refers to a cross section of the mounted member 10 in the vertical direction, and when the cross section is horizontally placed, the two interfaces 21 on the hoop 20 are located on the upper and lower sides, or the left and right sides, of the mounted member 10.
As shown in fig. 1, 3, 4 and 5, in some embodiments, before the mounted part 10 is rotated, the mounted part 10 is hoisted and placed on the active rolling device 41, and the mounted part 10 can be driven to rotate around the axis of the mounted part 10 by the active rolling device 41. The active rolling device 41 includes a first mounting seat 413 and two driving wheels 412, wherein the two driving wheels 412 are rotatably mounted on the first mounting seat 413, and the two driving wheels 412 are arranged at intervals along the radial direction of the mounted part 10. Each driving wheel 412 is provided with a motor 411 so that each driving wheel 412 can be driven by the motor 411 and the rotation directions of the two driving wheels 412 are the same. When the mounted member 10 is hoisted and placed on the active rolling device 41, the two driving wheels 412 are supported at the bottom of the mounted member 10. Then, the motor 411 is started to drive the corresponding driving wheel 412 to rotate. The rotation of the driving wheel 412 can drive the installed part 10 to rotate around the axial direction of the installed part 10, so as to adjust the orientation of the installed part 10, for example, to actively adapt to the installation angle of the hoop 20, or to rotate to select a suitable hoisting point.
As shown in fig. 1, 3, 4 and 5, in actual use, before the mounted member 10 rotates, the mounted member 10 is hoisted and placed on the driven rolling device 42, and the driven rolling device 42 and the driving rolling device 41 are arranged at intervals; the driven rolling device 42 can be driven by the driven rolling device 41 to rotate by the mounted part 10. That is, when the rotation of the mounted member 10 is performed, two rolling devices, namely, the active rolling device 41 and the passive rolling device 42, are installed at the bottom of the mounted member 10, and the active rolling device 41 and the passive rolling device 42 are arranged at intervals in the axial direction of the mounted member 10.
The driven rolling device 42 includes a second mounting seat 422 and two driven wheels 421, the two driven wheels 421 are both rotatably mounted on the second mounting seat 422, and the two driven wheels 421 are arranged at intervals along the radial direction of the mounted part 10. When mounted member 10 is placed in the two rolling devices, two driving wheels 412 and two driven wheels 421 are supported on the bottom of mounted member 10. When motor 411 starts drive action wheel 412 and rotates, action wheel 412 can drive by installed part 10 and rotate, is driven by installed part 10 and rotates from driving wheel 421, and then realizes by the steady rotation of installed part 10.
Wherein, the outside of action wheel 412 and the outside from driving wheel 421 all are provided with the rubber sleeve, not only reduce the wearing and tearing of action wheel 412 and follow driving wheel 421 to installed part 10, are convenient for realize the transmission of power through the friction of contact department moreover.
In an alternative embodiment, the height of the active rolling device 41 and the height of the passive rolling device 42 are adjusted according to the diameter size of different positions of the mounted member 10. That is, the mounted member 10 is not a completely regular structure in actual use, and a diameter of a certain portion of the mounted member 10 is larger or a diameter of a certain portion of the mounted member 10 is smaller in the axial direction of the mounted member 10. If the active rolling device 41 and the passive rolling device 42 are provided at exactly two positions having different diameters, respectively, it is necessary to adjust the height of one of the rolling devices located at the position having the smaller diameter so that the axis of the supported mounted member 10 is horizontal. For example, the active rolling device 41 is arranged at the tail of the installed part 10, and the diameter is small, so the height of the active rolling device 41 needs to be a little higher. The driven rolling device 42 is provided at the head of the mounted member 10, and has a large diameter, so that the height of the driven rolling device 42 needs to be a little lower.
It should be noted that the active rolling device 41 and the slave rolling device in the present embodiment are both disposed in the open air field, so that the hoop 20 of the mounted member 10 can be installed in the open air field. Moreover, due to the arrangement, the operation space of an installation site can be increased, so that an operator can operate conveniently, and the risk of influence on the holding operation of the holding ring 20 due to the fact that the site is too small is reduced.
As shown in fig. 1, 3, 4 and 5, in actual use, after the mounted member 10 is hoisted to the driving rolling device 41 and the driven rolling device 42, the support seat 50 installed at the bottom of the mounted member 10 is removed. That is to say, the installed part 10 is actually placed at a certain safe position before the hoop 20 is installed, and the supporting seat 50 is provided at the bottom of the installed part 10 so as to support the installed part 10, ensure that the installed part 10 does not directly contact with the ground, and improve the protection performance of the installed part 10. When the hoop 20 needs to be sleeved on the mounted member 10, because the mounted member 10 needs to rotate, if the carrying support seat 50 rotates synchronously, the rotating effect is adversely affected, and even the sleeving operation of the hoop 20 is affected. Therefore, in actual use, when the mounted member 10 is hoisted and placed on the active rolling device 41 and the passive rolling device 42 by the crane, the support seat 50 is removed with respect to the mounted member 10 after the mounted member 10 is stabilized.
Generally, the supporting seat 50 is installed relatively to the installed part 10 through the small hoop, and the small hoop is disassembled relatively to the supporting seat 50, so that the supporting seat 50 can be disassembled relatively to the installed part 10. Wherein, supporting seat 50 is provided with the mounting hole respectively along the radial both sides by installed part 10, utilizes turn buckle to connect the relative supporting seat 50 of little staple bolt, and turn buckle passes the mounting hole and is fixed with supporting seat 50.
As shown in fig. 1, 3, 4 and 5, in some embodiments, when the hoop 20 is hoisted relative to the to-be-installed member 10, the two interfaces 21 on the hoop 20 are respectively located at two sides in the vertical direction, and then the hoop 20 is sleeved outside the to-be-installed member 10 in the axial direction of the to-be-installed member 10. Specifically, the hoop 20 has two semicircular lobes, and the two lobes are connected by a bolt. Each valve body is provided with a hoisting point, and the hoop 20 is hoisted by a crane. The hooping ring 20 is provided with four hoisting points, two hoisting points are distributed on each valve body along the radial direction of the hooping ring 20, the crane is hoisted by adopting a V-shaped hoisting rope, two ends of the V-shaped hoisting rope are respectively connected to the hoisting points on the same sides of the two valve bodies, namely the hoisting points on the same sides are positioned on two sides of the interface 21 of the hooping ring 20. The bail 20 has two interfaces 21 so that two cranes are used to lift the bail 20. During the in-service use, utilize two cranes to hoist the hoop 20 level earlier, then descend the height of one of them crane, the height of another crane rises, and then makes hoop 20 hoist and mount along vertical direction, and two interfaces 21 on the hoop 20 are located the both sides along vertical direction respectively to cooperate with by installed part 10, realize the emboliaing of positive interface mode.
In actual use, as shown in fig. 1, 3, 4 and 5, before the hoop 20 is sleeved on the mounted part 10, the adapter package on the mounted part 10 at the mounting position of the hoop 20 is removed, and the adapter is temporarily protected. That is, the nozzle package on the installed part 10 needs to be removed first to reduce the interference caused by the installation of the hoop 20. Meanwhile, after the adapter tube package is removed, the adapter tube needs to be protected temporarily to ensure that the collision and damage of the adapter tube are reduced when the hoop 20 is sleeved.
As shown in fig. 1, 3, 4 and 5, in some embodiments, the hoop 20 to be sleeved into the mounted member 10 is rotated relative to the mounted member 10, so that the horizontal degree of the lifting trunnions on the mounted member 10 and the horizontal degree of the trunnions on the hoop 20 are less than 2 mm. Specifically, after the hoop 20 is sleeved in the installed part 10, the angle of the hoop 20 relative to the installed part 10 needs to be finely adjusted, so that the error between the levelness of the lifting trunnion on the installed part 10 and the levelness of the trunnion on the hoop 20 is reduced to a safe range. In practical use, two jacks are respectively arranged on two sides of the embracing ring 20 along the radial direction of the embracing ring 20, and the power of the two jacks is used for driving the embracing ring 20 to slightly rotate relative to the installed part 10, so that the levelness is adjusted. After the target position is reached, the hoop 20 is tightly held relative to the installed part 10.
As shown in fig. 1, 3, 4 and 5, in some embodiments, a weight 30 is mounted at an end of mounted member 10 distal from bail 20. The purpose of the counterweight 30 is to ensure that the two ends of the installed member 10 remain horizontal after lifting. For example, the clasping ring 20 is installed at the tail of the installed member 10, and the weight block 30 is installed at the head of the installed member 10. In the specific operation, the weight block 30 is placed on the pushing member, then the weight block 30 is pushed into the lower part of the installed part 10 by the pushing member, and the weight block 30 is tightly tied to the installed part 10 by the hanging belt 70. That is to say, place balancing weight 30 on the pusher earlier, the pusher can move along ground, and then move balancing weight 30 to the bottom of installed part 10 for the top surface of balancing weight 30 suits with the lateral wall of installed part 10, and hugs closely. Then, one end of the hanging strip 70 is connected to one end of the counterweight 30, and the other end of the hanging strip 70 extends to the other end of the counterweight 30 along the axial direction of the installed part 10 and is connected to the end of the counterweight 30, so that the counterweight 30 is locked relative to the installed part 10. Wherein, the pushing component adopts a roller trolley.
As shown in fig. 1, 3, 4 and 5, in some embodiments, the sling 60 for lifting the installed member 10 is released before the hoop 20 is inserted, and after the hoop 20 is configured relative to the installed member 10, the sling 60 is fixed again, and the installed member 10 equipped with the hoop 20 is lifted. That is, when the mounted member 10 is hoisted from the place where it is placed to the rolling device, it is necessary to hoist it by using a crane. After being placed on the driving rolling device 41 and the driven rolling device 42, the hoisting member 60 for hoisting is released so that the mounted member 10 is rotated with respect to the driving rolling device 41 and the driven rolling device 42. After the hooping 20 is installed on the installed part 10, the hoisting part 60 is connected again, so that the installed part 10 with the hooping 20 is hoisted to the next installation position.
As shown in fig. 1, 3, 4 and 5, in summary, when the hoop installation method provided by the present invention is adopted, the active rolling device 41 and the driven rolling device 42 are arranged at intervals in the open air field, and the stable placement of the active rolling device 41 and the driven rolling device 42 relative to the ground is ensured, and at the same time, the height of the active rolling device 41 and the height of the driven rolling device 42 need to be adjusted according to the diameter difference of the installed part 10. And then hoisting the mounted part 10 from the previous mounting position to the driving rolling device 41 and the driven rolling device 42 by using a crane, and adjusting the levelness of the mounted part 10 to ensure that the mounted part 10 is stably placed. Then, the support base 50 mounted on the mounted member 10 is removed from the mounted member 10, and the hanger 60 for hanging the mounted member 10 is released. Then the motor 411 is started to drive the driving wheel 412, and the rotation of the mounted part 10 around the axis thereof is realized by matching with the arrangement of the driven wheel 421, so that the mounted part 10 can actively adapt to the mounting angle of the hoop 20. Simultaneously, assemble armful ring 20, form whole armful ring 20, then utilize two cranes to lift armful ring 20, then place along vertical direction, can dismantle by the takeover packing on installed part 10 at this in-process to the butt joint pipe protects temporarily, then will embrace that ring 20 is emboliaed relatively by installed part 10, and is tightly embraced ring 20 by installed part 10 is relatively packed. After the hoop 20 is tightened relative to the mounted part 10, the active rolling device 41 is activated again to drive the mounted part 10 to rotate around the axis direction of the mounted part again, and the hoop 20 mounted on the mounted part 10 can rotate synchronously therewith. The hoisting point of the installed part 10 is selected through the second rotation, so that the two interfaces 21 on the hoop 20 can be respectively positioned at two sides of the installed part 10 in the horizontal direction. After the hoisting point is adjusted to the proper position, the holding ring 20 is driven by a jack to rotate relative to the installed part 10 so as to adjust the levelness of the lifting trunnions on the installed part 10 and the levelness of the trunnions on the holding ring 20, and then the holding ring 20 is tightly held and fixed relative to the installed part 10. Finally, the counterweight 30 is moved to the bottom of the installed part 10 by the trolley, so that the counterweight 30 is attached to the installed part 10, and the counterweight 30 is fixed relative to the installed part 10 by the hanging belt 70, so as to ensure the levelness when the installed part 10 is lifted.
The attached member 10 may be a steam generator, or may be another pressure vessel such as a heat exchanger. The following description will be made by taking a steam generator as an example.
The hoop mounting method provided by the invention has the following advantages on the whole:
1. the installed part 10 can rotate around the axis of the installed part through the mutual matching of the active rolling device 41 and the driven rolling device 42, so that the installation angle and the hoisting point of the hoop 20 can be actively adapted to the selection, the positive interface installation mode of the hoop 20 is further realized, the shearing force influence under the arrangement design condition of the 'inclined interface' of the hoop is improved, the safety risk of breakage of fastening bolts and stud bolts and adjusting jackscrews possibly generated due to the shearing force is eliminated, and the tightening and folding operation of the hoop 20 is simply and conveniently realized.
2. In prior art, because of embracing ring 20 and can only lead to embracing ring 20 and by having 12 degrees contained angles between installed part 10 at horizontal direction and vertical direction removal, so need constantly to turn round the adjustment when being installed the armring 20 by installed part 10 relatively, lead to embracing ring 20 and by taking place to collide with scheduling problem between the installed part 10 inevitably. In the hoop mounting method provided by the invention, the mounted part 10 rotates around the axis of the mounted part to adapt to the mounting angle of the hoop 20, and the levelness is adjusted by rotating the hoop 20 relative to the mounted part 10, so that the problem of a 12-degree included angle between the advancing direction of the hoop 20 and the axis direction of the mounted part 10 is solved, and the risk of collision and damage to the mounted part 10 when the hoop 20 is sleeved into the mounted part 10 is reduced.
3. Can be in open air ground go on by the installation of 20 of embracing on installed part 10, and then improve operational environment, effectively reduced personnel's high altitude construction's safety risk, take over the packing by installed part 10 simultaneously and demolish, inspection work also can operate at best station, is favorable to construction quality control.
4. The space restriction of operation does not exist in the factory building, and work such as the gudgeon installation and the primary side packing that is installed by the lifting on installed part 10 are demolishd, the inspection can be gone on before being introduced to the factory building by the hoist and mount of installed part 10, and can be gone on in step with the work of being installed part 10 installation armful ring 20, has reduced total work load, has improved work efficiency.
5. The hard logic of the installation process of the installed part 10 in the past is broken through, multiple processes are carried out on the ground of 0 meter before being hoisted by the installed part 10 in advance, so that the time of occupying 17.5 meters of channels during the introduction of the installed part 10 is shortened, the circular hoisting resources of a reactor plant are effectively released, the installation work is more flexible and efficient, the dependence on scarce resources is reduced, other key work can be synchronously carried out with the introduction of the installed part 10, and the optimization of the construction scheme and the improvement of the overall installation efficiency are realized.
As shown in fig. 2 to 5, an embodiment of the present invention further provides a steam generator hoop mounting method, in practical use, the steam generator is rotated around an axis direction of the steam generator, so that a mounting angle of the steam generator is adapted to a mounting angle of the hoop 20, and then the hoop 20 is sleeved outside the steam generator; rotate steam generator once more so that select the hoist and mount point, embrace ring 20 and can rotate with steam generator is synchronous to two interfaces 21 on embracing ring 20 can be located steam generator along the both sides of horizontal direction respectively, and then will embrace ring 20 and hold tightly relative steam generator, realize embracing ring 20 relative steam generator's installation.
Specifically, the active tumbling device 41 and the driven tumbling device 42 are spaced apart from each other in the open air field, and are stably placed with respect to the ground, while the height of the active tumbling device 41 and the height of the driven tumbling device 42 are adjusted according to the difference in the diameter of the steam generator. And then hoisting the steam generator from the previous installation position to the driving rolling device 41 and the driven rolling device 42 by using a crane, and adjusting the levelness of the steam generator to ensure the stable placement of the steam generator. The support base 50 mounted on the steam generator is then removed from the steam generator and the lifting means 60 for lifting the steam generator is released. Then the starting motor 411 drives the driving wheel 412, and the rotation of the steam generator around the axis of the steam generator is realized by matching with the arrangement of the driven wheel 421, so that the steam generator can actively adapt to the installation angle of the hoop 20. Simultaneously, assemble armful ring 20, form whole armful ring 20, then utilize two cranes to lift armful ring 20, then place along vertical direction, can demolish the takeover packing on the steam generator at this in-process to the butt joint pipe protects temporarily, then embolias armful ring 20 relative steam generator, and the armful ring 20 is tightly taken up relative steam generator. After the hoop 20 is tightened with respect to the steam generator, the active rolling device 41 is started again to drive the steam generator to rotate around its own axis direction again, and the hoop 20 installed on the steam generator can rotate synchronously therewith. The selection of the hoisting point of the steam generator is performed through the secondary rotation, so that the two interfaces 21 on the hoop 20 can be respectively positioned at two sides of the steam generator along the horizontal direction. After the lifting point is adjusted in place, the clamping ring 20 is driven by the jack to rotate relative to the steam generator so as to adjust the levelness of the lifting trunnions on the steam generator and the levelness of the trunnions on the clamping ring 20, and then the clamping ring 20 is clamped and fixed relative to the steam generator. Finally, the counterweight block 30 is moved to the bottom of the steam generator by the trolley, so that the counterweight block 30 is attached to the steam generator, and the counterweight block 30 is fixed relative to the steam generator by the hanging strip 70, so that the levelness of the steam generator can be ensured when the steam generator is lifted.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (12)
1. A hoop mounting method is characterized by comprising the following steps:
the installed part (10) is rotated around the axis direction of the installed part (10), so that the installation angle of the installed part (10) is matched with the installation angle of the hoop (20), and then the hoop (20) is sleeved on the outer side of the installed part (10); rotate again by installed part (10), embrace ring (20) and can rotate with by installed part (10) synchronization for two interfaces (21) on embracing ring (20) are located respectively by installed part (10) along the both sides of horizontal direction, and then will embrace ring (20) and hug closely by installed part (10) relatively.
2. The hoop mounting method as claimed in claim 1, wherein the installed part (10) is hoisted and placed on an active rolling device (41) before the installed part (10) rotates, and the installed part (10) can be driven to rotate around the axis of the installed part (10) through the active rolling device (41).
3. The hoop installation method as claimed in claim 2, wherein the installed part (10) is hoisted and placed on the driven rolling device (42) before the installed part (10) rotates, and the driven rolling device (42) and the driving rolling device (41) are arranged at intervals; the mounted part (10) can drive the driven rolling device (42) to rotate under the driving of the driving rolling device (41).
4. The hoop mounting method as claimed in claim 3, wherein the height of the active rolling device (41) and the height of the passive rolling device (42) are adjusted according to the diameter of the installed part (10) at different positions.
5. The bail installation method according to claim 3, wherein the support base (50) installed at the bottom of the mounted member (10) is removed before the mounted member (10) is hoisted to the driving rolling device (41) and the driven rolling device (42).
6. The hoop mounting method as claimed in claim 1, wherein when the hoop (20) is hoisted relative to the to-be-mounted member (10), the two interfaces (21) on the hoop (20) are respectively located at two sides in the vertical direction, and then the hoop (20) is sleeved outside the to-be-mounted member (10) along the axial direction of the to-be-mounted member (10).
7. A method for mounting a hoop as claimed in claim 6, wherein the package of the adapter tube at the mounting position of the hoop (20) on the to-be-mounted member (10) is removed and the tube is temporarily protected before the hoop (20) is sleeved on the to-be-mounted member (10).
8. The hoop mounting method as claimed in claim 1, wherein the hoop (20) to be sleeved into the installed part (10) is rotated relative to the installed part (10) so that the levelness of the lifting trunnions on the installed part (10) and the levelness of the trunnions on the hoop (20) are less than 2 mm.
9. The bail mounting method as claimed in claim 1, wherein a weight (30) is mounted at an end of the mounted member (10) remote from the bail (20).
10. The hoop mounting method as claimed in claim 9, wherein the weight block (30) is placed in a pushing member, the pushing member is used to push the weight block (30) into the lower part of the mounted member (10), and the weight block (30) is tied tightly to the mounted member (10) by using a hanging strip (70).
11. A hoop mounting method as claimed in any one of claims 1 to 10, wherein the sling (60) for lifting the installed member (10) is released before the hoop (20) is inserted, and after the hoop (20) is configured with respect to the installed member (10), the sling (60) is fixed again to lift the installed member (10) equipped with the hoop (20).
12. A method for installing a hoop of a steam generator is characterized by comprising the following steps:
rotating the steam generator around the axis direction of the steam generator to enable the installation angle of the steam generator to be matched with that of the hoop (20), and then sleeving the hoop (20) on the outer side of the steam generator; and rotating the steam generator again, and synchronously rotating the hoop (20) and the steam generator so that the two interfaces (21) on the hoop (20) can be respectively positioned at two sides of the steam generator along the horizontal direction, and then tightly holding the hoop (20) relative to the steam generator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011346520.XA CN112571363B (en) | 2020-11-26 | 2020-11-26 | Hoop mounting method and hoop mounting method of steam generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011346520.XA CN112571363B (en) | 2020-11-26 | 2020-11-26 | Hoop mounting method and hoop mounting method of steam generator |
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| CN112571363A true CN112571363A (en) | 2021-03-30 |
| CN112571363B CN112571363B (en) | 2023-04-07 |
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| DE102005058161A1 (en) * | 2005-12-05 | 2007-06-06 | Viega Gmbh & Co. Kg | Quick release fastener for connecting pipe unit e.g. drilling valve, and fitting e.g. tapping clamp, has ring body provided with circular groove for axial fixation of pipe unit and fitting relative to one another and to fastener |
| CN109573819A (en) * | 2018-11-30 | 2019-04-05 | 上海无线电设备研究所 | The hanging device and hanging method of automatic centering installation and balancing |
| CN211480867U (en) * | 2020-03-23 | 2020-09-11 | 马鞍山市恒大线路器材有限公司 | Cable hoop capable of being installed in portable mode |
| CN111890559A (en) * | 2020-08-31 | 2020-11-06 | 湖北航天长征装备有限公司 | Method for rolling tank container to fix angle |
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2020
- 2020-11-26 CN CN202011346520.XA patent/CN112571363B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005058161A1 (en) * | 2005-12-05 | 2007-06-06 | Viega Gmbh & Co. Kg | Quick release fastener for connecting pipe unit e.g. drilling valve, and fitting e.g. tapping clamp, has ring body provided with circular groove for axial fixation of pipe unit and fitting relative to one another and to fastener |
| CN109573819A (en) * | 2018-11-30 | 2019-04-05 | 上海无线电设备研究所 | The hanging device and hanging method of automatic centering installation and balancing |
| CN211480867U (en) * | 2020-03-23 | 2020-09-11 | 马鞍山市恒大线路器材有限公司 | Cable hoop capable of being installed in portable mode |
| CN111890559A (en) * | 2020-08-31 | 2020-11-06 | 湖北航天长征装备有限公司 | Method for rolling tank container to fix angle |
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| CN112571363B (en) | 2023-04-07 |
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