CN109484999B

CN109484999B - Overturning and erecting device and method

Info

Publication number: CN109484999B
Application number: CN201811125556.8A
Authority: CN
Inventors: 宋丰伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-06-04
Filing date: 2018-09-26
Publication date: 2024-04-12
Anticipated expiration: 2038-09-26
Also published as: CN109484999A; CN209098145U

Abstract

The invention provides a turning and erecting device (the device for short) and a turning and erecting method (the method for short), which are used for turning and erecting equipment (particularly large-scale equipment such as an evaporator and the like). The device has reasonable structure, simple manufacture and lower requirement on dimensional tolerance, and does not need accurate adjustment in the overturning process. The method has simple operation process, horizontally places the equipment on the device, and uses external force (such as crane force) to connect one end of the equipment for lifting, so that the device and the equipment can synchronously turn over without binding and reinforcing. When the apparatus reaches an erect state, the apparatus is directly hoisted. The device and the method can realize continuous operation of hoisting a plurality of devices in place. Compared with the traditional technology, the device and the method are safer, more economical and more efficient. The device can also be a universal overturning and erecting device for different types of equipment by replacing part of components.

Description

Overturning and erecting device and method

Technical Field

The invention relates to a device for overturning and erecting large equipment, in particular to an overturning and erecting device and method suitable for large equipment of a nuclear power station. In particular to a nuclear power station main system equipment evaporator and a pressure vessel overturning and erecting device.

Background

Currently, large-scale equipment with a certain height in a nuclear power station is generally transported from a manufacturing plant to a power station site in a horizontal transportation mode, and after the large-scale equipment arrives at a construction site, the large-scale equipment needs to be turned to a vertical state before being installed, and then is hoisted in place. For example, the shape and structure of an evaporator in a large-sized apparatus can be seen in patent document CN103594127a.

The prior art adopts a turnover mode that an anchoring member is pre-buried on a turnover layer floor slab in a reactor factory, a turnover bracket manufactured in a factory is fixed with a ground anchoring member through bolts, and a turnover holding ring is fixed with a lower barrel of an evaporator. When the turnover device is turned over, the turnover shaft of the turnover holding ring is placed on the supporting semicircular ring of the turnover support, one end of the evaporator is lifted by the crane, and the turnover is implemented by taking the turnover support as a fulcrum. For example, a turning device disclosed in patent documents CN105366556B and CN 103754805B.

The prior art has the defects that the overturning bracket is fixed on the ground, the overturning fulcrum is high, and large torque and impact force are easy to generate between equipment moving in the overturning process and the motionless bracket. So to ensure the security of the core-level device:

firstly, need the upset armful of high, the material performance requirement of machining precision requirement also high and overturn support.

And secondly, before overturning, various orientations and dimensions are strictly regulated, wherein the error of the levelness of the lifting trunnion of the evaporator is less than 2mm, the error of the levelness of the embracing trunnion is less than 2mm, the gap between the overturning bracket and the embracing trunnion is less than 1mm, and the error of the vertical central line connecting the axis of the equipment body and the overturning bracket is less than +/-1 mm. The amplitude of the crane boom during overturning must ensure that the vertical center lines of the connecting lines of the overturning brackets at the center line coincide. In consideration of the complex factors of uncontrollable field, the backing plate of the bracket is also processed according to the actual measurement condition in the field.

Thirdly, the overturning holding ring is installed before the overturning and erecting process, and the overturning holding ring is dismantled after the overturning and erecting process, so that a special dismantling device is required.

Fourthly, because the overturning bracket is fixed with the ground, the azimuth control of the equipment in the overturning process, in particular to the operation of a crane, has high requirements.

Fifthly, the foundation construction of the ground is also required to be high. If the reactor is turned over on a turning platform in a reactor factory building, penetrating anchors are needed to be pre-buried on a turning floor slab, and if a main equipment pre-introducing method is adopted, a large foundation is needed to be pre-buried on the ground. In either mode, bolts with high precision requirements are embedded.

Similar ski-like turning methods have been used for turning upright other large equipment, such as in-pile components, for example CN105060206a. The equipment body and the turnover support are fixed in the mode, in the turnover process, if the lifting force of the crane directly acts on the turnover support, the size and the weight of the turnover support are very large, the lifting force of the crane is switched to the equipment by the support after the turnover, and the equipment overturning risk is large. If the fastening means directly act on the device, the fastening means between the device and the tilting bracket are very important, considering both the strength of the fastening means and the bearing capacity of the device itself, requiring complex design and verification of the device itself. To ensure reliability, the flip bracket needs to be installed and fixed at the manufacturer, and removed after field flipping using special devices.

In addition, the lower support and the support cushion block of the evaporator in the prior art are made of rigid materials, and the technology has the defects that the support plate of the evaporator can be uniformly stressed only by actually measuring gaps and performing forming processing with high precision requirements. This problem is particularly pronounced for the process of turning the evaporator upright, since the turning support is subject to constant changes in force, the gap between the evaporator support plate and the support frame is also constantly changing, and the change value is difficult to estimate accurately. So that the prior art is difficult to ensure the balance of the stress of the supporting plate of the evaporator.

The turning and erecting of the main system equipment of the nuclear power station is one of the most important working procedures of the installation of the nuclear power station, and always occupies the main critical path of the construction of the nuclear power station. Because of the importance and sensitivity of core-level devices, the security of their flipping process is of great concern. The inverted erection of the prior art evaporator has heretofore been extended to the fixed-rack approach, because of the following recognition;

(1) The fixed stent is safer than the dynamic device;

(2) The dynamic turnover device is used, the equipment and the turnover device are fixed together, otherwise, the equipment and the turnover device are separated from each other, and the safety is difficult to ensure;

(3) The stress balance between the contact surfaces must be ensured by the machining precision.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an evaporator overturning and erecting device and method suitable for a nuclear power station.

According to the present invention there is provided a roll-over erection apparatus comprising: the device comprises a device support frame, a first bearing part and a second bearing part; the equipment support frame is provided with a support arc section;

the first bearing part and the second bearing part are both attached to the equipment support frame;

before the overturning and erecting device overturns, the equipment in a horizontal state can be hung from above and is located on the first bearing part;

after the overturning and erecting device overturns, the equipment in the vertical state located on the second bearing part can be lifted out from the upper part;

the first bearing part and the second bearing part positively bear equipment in the overturning process;

the support arc piece is used as the outer edge of the equipment support frame and rolls along the ground when the equipment turns over.

Preferably, the equipment support frame comprises a truss structure comprising more than two laterally connected side monolithic trusses;

the side single-piece truss comprises a horizontal section, a vertical section and a diagonal draw bar;

the horizontal section and the vertical section are connected into a whole and are connected and reinforced by diagonal rods.

Preferably, the first bearing part and the second bearing part are provided with a plurality of bearing points, when one end of the equipment is overturned under the action of external force, the bearing points dynamically distribute the bearing force of the equipment, and the bearing force and the overturning vertical device keep dynamic balance by taking the ground pivot of the supporting arc part as the total moment of the axial point from the gravity.

Preferably, the first bearing part comprises two groups of bearing points which are horizontally distributed, one group of bearing points is above the supporting arc section piece, and the other group of bearing points is above the horizontal section of the equipment supporting frame.

Preferably, the bearing point of the first bearing part is a saddle-shaped supporting structure, and can be directly matched with the equipment transportation saddle.

Preferably, the second bearing portion comprises two groups of bearing points, and when the equipment support frame is in a horizontal state before overturning, the two groups of bearing points are vertically distributed.

Preferably, the bearing point of the second bearing part is provided with a hydraulic jack which is communicated with the hydraulic pipe of the jack group.

Preferably, a soft cushion block is arranged between the jack and the equipment.

Preferably, the cushion block is made of a soft material body, and the outer part of the soft material body is wound by fibers.

Preferably, the support arc section member is composed of at least more than two arc sections, and adjacent arc sections are mutually independent or continuous.

Preferably, the device comprises support legs, one ends of the support legs are hinged with the device support frame, and the other ends of the support legs can be supported on the ground and move along the ground during overturning of the device.

Preferably, the support legs include struts and bolsters hingedly connected together.

Preferably, the sliding wheels are arranged on the support pads, and the sliding wheels replace the support pads to contact the ground when the support bars are in a preset angle range, so that the support bars do not play a supporting role.

Preferably, the device support is provided with a stop block, and the device is in a vertical position when the support legs are in contact with the stop block in the overturning process.

According to the overturning and erecting method provided by the invention, equipment in a horizontal state is placed on the overturning and erecting device, and the overturning and erecting device and the equipment synchronously overturn under the action of external force and are in a natural fit state; when the apparatus reaches the erect state, the inversion erection device is supported by the support legs to be stable, and the apparatus can be lifted off the inversion erection device.

Preferably, the method comprises the following steps:

step 1: placing the overturning and erecting device on the ground in a horizontal state to serve as one evaporator saddle, keeping the overturning and erecting device coaxial with the other evaporator saddle and on the same vertical plane with the crane boom;

step 2: hanging the evaporator in a horizontal state into the first bearing part by using a crane, wherein the end part of the evaporator is close to the second bearing part;

step 3: circumferentially adjusting the levelness of the evaporator;

step 4: adjusting the jack of the second bearing part to be attached to the supporting seat at the end part of the evaporator and to reach the preset pretightening force, and arranging a cushion block between the supporting seat of the evaporator and the jack;

step 5: closing an oil inlet main pipe valve of the jack group, and keeping the oil pressure pipes of the jack group communicated with each other;

step 6: the crane is connected with the evaporator lifting trunnion, the evaporator starts to turn over under the action of the lifting force of the crane, the turning and erecting device synchronously turns over, and the supporting leg supporting pad rolls or slides along the ground;

step 7: continuously lifting the evaporator until the evaporator exceeds the vertical position, and suspending the supporting legs at the moment;

step 8: the crane is adjusted to enable the evaporator to return to the vertical position, and the supporting legs are stressed and stably supported on the ground;

step 9: adjusting the position of the lifting hook head to coincide with the axis position of the evaporator;

step 10: opening an oil inlet valve of the jack, unloading the pressure until the crane bears the weight of all evaporators, and separating the jack from an end supporting seat of the equipment;

step 11: and (5) hanging the equipment away from the overturning and erecting device.

According to the present invention there is provided a roll-over erection apparatus comprising: a device support frame, a multi-stage support arc piece; wherein, the support arc section piece is connected to the equipment support frame;

in the process that the equipment support frame is turned over from a horizontal position to an upright position, the multistage support arc-segment piece sequentially rolls on the ground along with the turning over of the equipment support frame to serve as a fulcrum; in particular, the equipment support frame is synchronously turned over during the process of turning over the equipment from the horizontal position to the vertical position;

the equipment support frame comprises a first bearing part and a second bearing part;

when the equipment support frame is in a horizontal position, the first bearing structure forms a bearing structure in a vertical cube direction;

the second support structure forms a vertically-oriented support structure when the equipment support frame is in the upright position.

Preferably, when the equipment support frame is in a horizontal position, the equipment can be hung from directly above to be located on the first bearing structure;

when the equipment support stand is in the upright position, equipment sitting on the second bearing structure can be suspended from directly above.

Preferably, both the first support structure and the second support structure support the apparatus only in a conformable manner.

Preferably, the first bearing part and/or the second bearing part comprises a first jack group and/or a second jack group, and each group of jack oil ways are communicated. In particular, the first set of jacks constitutes a jacking set of jacks and the second set of jacks constitutes a protection set of jacks.

Preferably, the first jack group supports the equipment, and a gap is reserved between the second jack group and the equipment.

Preferably, a cushion block is arranged between the jacks of the first jack group and/or the second jack group and the equipment.

Preferably, the cushion block is made of a soft material body, and the outer part of the soft material body is wound by fibers. Especially high strength fiber windings such as carbon fibers.

Preferably, the multistage support arc sections are mutually independent, and at least two adjacent or non-adjacent stage support arc sections are respectively connected to the first bearing part and the second bearing part;

the support arc section is formed by a round corner structure extending from the equipment support frame or a protruding part extending from the equipment support frame.

According to the overturning and erecting method provided by the invention, the equipment is placed on the overturning and erecting device, and when the equipment overturns under the action of external force, the overturning and erecting device overturns synchronously. The overturning and erecting device is always attached to the equipment. When the equipment is lifted after the overturning is completed, the equipment is automatically separated from the overturning and erecting device.

Preferably, the method comprises the following steps:

step 1: placing the equipment support frame as a support on the ground in a horizontal position, keeping the equipment support frame coaxial with another support on the ground and on the same vertical plane with the crane boom;

step 2: hoisting the equipment into the equipment support frame and the other support by using a crane, wherein the first jack group is close to the equipment;

step 3: the levelness of the circumferential adjustment device;

step 4: adjusting the first jack group to be attached to the equipment and achieve a preset pretightening force, and arranging a cushion block between the equipment and the jack;

step 5: adjusting a second jack group, and reserving a reserved gap between the second jack group and equipment;

step 6: closing oil inlet main pipe valves of the first jack group and the second jack group;

step 7: connecting a crane with the equipment, and lifting one end of the equipment to an upright position by the crane;

step 8: the apparatus is lifted off the second support by a crane.

Preferably, the apparatus is an evaporator or a pressure vessel.

Preferably, the device is a nuclear power plant main system device.

Compared with the prior art, the invention has the following beneficial effects:

1. the device is simple to manufacture, low in tolerance precision requirement, low in processing cost and capable of being manufactured by processing common section steel on a construction site.

2. The device is reasonable in structure, has the characteristic of self-locking, and in the overturning process of equipment, each bearing point dynamically distributes bearing force, the moment balance ensures that the equipment and the overturning device are always attached, binding and fastening are not relied on, and the device is more stable and safe and does not have the risk of overturning.

3. The overturning step is simple, and the overturning and erecting of the equipment can be completed rapidly. The equipment such as the evaporator in a horizontal state is placed on the turnover device, the azimuth and the precision do not need to be accurately adjusted, the fixed connection is not needed, one end of the equipment is lifted by a crane, the synchronous turnover can be realized by the device and the equipment, and the turnover and erection flow production of a plurality of equipment can be realized simply and rapidly.

4. The overturning field does not need to be pre-buried with anchoring pieces or anchoring blocks, only a flat field capable of bearing weight is selected at will, or roadbed plates meeting the bearing requirements are prepared, special preparation is not needed, the total plane arrangement is convenient to hoist, and the cost is greatly reduced.

5. The device can be used as a universal turnover device for various devices by replacing part of components (such as a supporting arc-shaped piece and a supporting part).

Drawings

Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

fig. 1 is a schematic view of the structure of the turning upright device provided by the invention in a horizontal position.

Fig. 2 is a schematic view of the structure of the turning upright device provided by the invention in the process of turning from a horizontal position to an upright position.

Fig. 3 is a schematic view of the structure of the inverted erection device in the erected position.

Fig. 4 is a schematic view of a leg of the tipping and erecting device provided by the invention.

Fig. 5 is a schematic structural view of the turning erection device provided by the invention.

Fig. 6 is a schematic view of the structure of the turning upright device provided by the invention in a horizontal position.

Fig. 7 is a schematic view of the structure of the turning upright device provided by the invention in the process of turning from the horizontal position to the upright position.

Fig. 8 is a schematic view of the structure of the inverted erection device in the erected position.

The figure shows:

equipment support 100

Support arc segment 200

First supporting part 101

Second supporting part 102

First jack group 103

Second jack set 104

Support leg 105

Jack 106

Stop block 107

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.

The turning and erecting of the main system equipment of the nuclear power station is one of the most important procedures of the installation of the nuclear power station, and is a main critical path for the construction of the nuclear power station. Because the main system equipment is core primary equipment, the security of the turning process is important. The invention provides a turnover erection device which is particularly suitable for large-scale equipment such as evaporators, overcomes the prejudice of the prior art, replaces a special turnover erection tool for the evaporators in the prior art, and has the advantages of reducing cost, improving efficiency and increasing safety.

The invention provides a turnover and erection device, which is marked as the device. The overturning and erecting method provided by the invention is recorded as the method.

The device can be processed by common section steel. The device comprises: the equipment support frame 100, the first bearing part 101, the second bearing part 102 and the support legs 105; the equipment support frame 100 has a support arc piece 200; the first bearing portion 101, the second bearing portion 102 and the supporting leg 105 are all attached to the equipment supporting frame 100, and can be partially or completely detached and replaced to adapt to the overturning of various equipment. The equipment in the horizontal state before overturning can be lifted into the equipment located on the first bearing part 101 from the upper part of the device, after overturning is finished, the equipment located on the second bearing part 102 in the vertical state can be lifted out from the upper part of the equipment, and in the overturning process, the equipment is positively supported by the first bearing part 101 and the second bearing part 102. Wherein the device is an evaporator or a pressure vessel, in particular a nuclear power plant main system device, such as an evaporator or a pressure vessel of a nuclear power plant main system. The equipment support frame 100 includes a truss structure including two side monolithic trusses. Firstly, processing a side single-piece truss, wherein the side single-piece truss comprises a horizontal section, a vertical section and a diagonal draw bar, the side single-piece truss is in a goose shape as shown in fig. 1, a goose body part is the horizontal section, and a gooseneck part is the vertical section. The horizontal section and the vertical section are integrally connected in an L shape and are connected and reinforced by diagonal rods. The two side mono-piece trusses are laterally connected to form the equipment support frame 100 and are suitably reinforced to ensure adequate strength. The first bearing portion 101 and the second bearing portion 102 comprise a plurality of bearing points, when the equipment in a horizontal state is placed on the device, and when the equipment is overturned under the action of external force such as crane force, the bearing force is dynamically distributed to each bearing point, the bearing force and the overturning vertical device keep total moment dynamic balance by taking the ground fulcrum of the supporting arc section 200 as an axis point, and the equipment and the device are in a natural fit state.

The first bearing portion 101 is connected at the horizontal segment of the equipment support frame 100, and the first bearing portion 101 comprises two groups of bearing points which are horizontally distributed, one group of bearing points is above the support arc segment piece 200, the other group of bearing points is above the horizontal segment of the equipment support frame 100, and each group of bearing points can directly use the equipment transportation saddle. The first support 101 acts on the side of the evaporator, and the evaporator in a horizontal state before turning can be suspended from above the first support 101. The main bearing device acts on the positive pressure of the saddle bearing surface.

The second bearing portion 102 is connected to the vertical section of the equipment support frame 101, and includes two sets of support points, each set of support points includes two support points, and acts on 4 support seats at the end of the evaporator. The main bearing device is parallel to the sliding force of the saddle bearing surface.

The supporting arc piece 200 is a part of the outer edge of the equipment supporting frame 100, and mainly comprises more than two arc pieces, wherein the arc pieces are mutually independent or continuous. Two of the arc segments of the support arc segment 200 are respectively noted as: the first arc section and the second arc section. The first arc section is discontinuous with the second arc section, so that the overturning starting process is more stable. When the device is freely placed on the ground, the device is in an inclined state, and the two arc sections can be used as fulcrums to keep the stability of the device. When crane force acts on one end of the evaporator, the supporting arc piece 200 rolls on the ground, the bearing force of the equipment is dynamically distributed to each bearing point of the first bearing part 101 and the second bearing part 102, the bearing force and the total moment of self gravity of the turning and erecting device keep dynamic balance by taking the supporting arc piece 200 on the ground fulcrum as an axis point, a self-locking structure is formed, and the device and the evaporator synchronously turn and are in a natural fitting state.

Further preferably, the second bearing portion 102 includes two sets of hydraulic jacks 106, each set of jacks including two jacks, and oil pipes between the jacks are communicated and respectively supported on four support seats of the lower support in the vertical state of the end portion of the evaporator. The position of the jack is regulated before overturning and the jack is pre-tensioned properly, so that the evaporator is prevented from sliding along the saddle at the beginning of the overturning process. And in the overturning process, the jack oil inlet pipe valve is closed, and the same group of jack oil pipes are kept to be communicated so as to keep the balance of bearing forces at two sides. When the equipment is turned to a vertical state, the jack oil inlet pipe valve is opened, the pressure is removed to enable the crane to gradually bear the whole weight of the evaporator, and the jack is completely separated from the supporting point at the end part of the evaporator. And then the device is adjusted away, so that the impact is reduced, and the collision is avoided.

A soft cushion block is arranged between the jack and the equipment. The cushion block is made of soft material such as polytetrafluoroethylene, tin sheet, copper sheet, etc. The equipment has large weight, and when the strength of the soft material body is insufficient, the outside of the soft material body is wound by high-strength fibers such as carbon fibers, glass fibers and the like.

One end of the support leg 105 is hinged with the equipment support frame 100, and the other end of the support leg 105 is supported on the ground and moves along the ground during the overturning of the evaporator. The support legs 105 are unstressed in the counterclockwise direction in fig. 1 when the evaporator is turned in the forward direction, and the support legs 105 are supported in the clockwise direction in fig. 1 when turned in the reverse direction to prevent the equipment from shaking back and forth during the turning. The support leg 105 includes a strut and a support pad. The supporting rods are hinged with the supporting pads so as to ensure the supporting pads to be in full contact with the ground and support stably. The sliding wheels are arranged on the support pads, when the support rods are in a certain angle range, the sliding wheels replace the support pads to contact the ground, and the support rods do not play a supporting role, so that the device is prevented from sliding with the ground.

The equipment support frame 101 is provided with a stop block 107, and the evaporator is exactly in a vertical position when the support leg 105 is in contact with the stop block 107 during overturning.

When crane force acts on the evaporator, the device and the evaporator turn over synchronously, and the device can keep a fitting state without binding and fixing. When the evaporator is in an upright state, the device is supported and fixed by the support legs 105, and the equipment is directly lifted off the device.

Further, based on the device, the invention also provides a turning and erecting method, which comprises the following steps:

step 1: as shown in fig. 1, the turning upright device is placed on the ground in a horizontal state as one evaporator saddle, kept coaxial with the other evaporator saddle and in the same vertical plane as the crane boom;

step 2: hanging the evaporator in a horizontal state into the first bearing part 101 by using a crane, wherein the end part of the evaporator is close to the second bearing part 102;

step 3: circumferentially adjusting the levelness of the evaporator;

step 4: adjusting the jack of the second bearing part 102 to be attached to the supporting seat at the end part of the evaporator and to reach the preset pretightening force, and arranging a cushion block between the supporting seat of the evaporator and the jack;

step 6: the crane is connected with the evaporator lifting trunnion, the evaporator starts to turn over under the action of the lifting force of the crane, the turning upright device synchronously turns over, and the support leg 105 support pad rolls or slides along the ground;

step 7: the evaporator is lifted continuously until it is slightly beyond the upright position, at which time the support legs 105 are suspended;

step 8: the crane is adjusted to enable the evaporator to return to the vertical position, and the supporting legs 105 are stressed and stably supported on the ground;

step 11: slowly hanging the equipment off the device.

In a preferred embodiment, the inverted erection device may be an inverted erection device of a nuclear power plant main system equipment evaporator. Correspondingly, the first bearing part 101 selects an evaporator transportation saddle, and the second bearing part 102 mainly comprises two groups of two jacks and a support frame thereof, and the positions of the two jacks correspond to the support seats at the end parts of the evaporator. In other preferred embodiments, the turning erection device may be a turning erection device of a pressure vessel, correspondingly, the first bearing portion 101 is a pressure vessel transportation saddle, and in the second bearing portion 102, a supporting disc or a supporting ring is arranged between the jack and the pressure vessel to adapt to the shape of the end of the pressure vessel, and part of the arc segments of the replacement supporting arc segment 200 are modified to adapt to the turning of the pressure vessel. In a further preferred embodiment, the first support 101, the second support 102 and the support arc 104 can be replaced as a means for turning over and erecting other large-scale devices.

In a variation and preferred embodiment, the turning and erecting device provided according to the present invention includes: equipment support 100, multistage support arc 200; for example, three arrowed lines in fig. 5 illustrate a three-stage support arc 200. Wherein the support arc segment 200 is connected to the equipment support frame 100; in the process of turning the equipment support frame 100 from the horizontal position to the vertical position, the multi-stage support arc section 200 sequentially rolls on the ground along with the turning of the equipment support frame 100 to serve as a fulcrum; after the equipment is horizontally placed on the equipment support frame 100, the multi-stage support arc piece 200 is turned to an upright position by taking the multi-stage support arc piece 200 as a fulcrum under the action of lifting force of a crane, and the multi-stage support arc piece 200 rolls on the ground in sequence. The equipment support frame 100 comprises a first bearing part 101 and a second bearing part 102; the first supporting part 101 is provided with two saddles with the same axle center, and can be directly used as a transportation saddle, and the second supporting part 102 comprises a jack. When the equipment support frame 100 is in the horizontal position, the first bearing structure 101 forms a bearing structure in the vertical cube direction; the second bearing structure 101 forms a bearing structure in the vertical direction when the equipment support stand 100 is in the upright position.

In a preferred embodiment, the inverted erection device may be an inverted erection device of a nuclear power plant main system equipment evaporator. Accordingly, the equipment support frame 100 includes a saddle that supports the evaporator, a support frame for the saddle, an evaporator end support frame, and the like. In other preferred embodiments, the turning upright device may be a turning upright device of a pressure vessel, and correspondingly, the end support frame of the evaporator is changed to be additionally provided with a support ring, instead of a jack-up jack, and the saddle for supporting the evaporator is changed to be a pressure vessel saddle suitable for the pressure vessel. In more preferred embodiments, the saddle can be changed into a support suitable for other equipment, and the support mode of the end part or other parts of the equipment can be changed, so that the saddle can be used as a device for overturning and erecting other large-scale equipment.

When the equipment support frame 100 is in the horizontal position, the equipment can be hung from right above to be located on the first bearing structure 101; when the equipment support stand 100 is in the upright position, equipment sitting on the second racking structure 102 can be suspended from directly above. The equipment such as an evaporator is not bound and fixed with the equipment support frame 100, the equipment is always in a fitting state with the equipment support frame 100 before being lifted and separated from the equipment support frame 100, and the first bearing structure 101 and the second bearing structure 102 only bear the equipment in a fitting mode until the equipment is automatically separated from the equipment support frame 100 after being lifted.

Any one or more of the first supporting portion 101 and the second supporting portion 102 comprises a first jack group and/or a second jack group; the first jack group bearing device forms a jacking jack group; and a gap is reserved between the second jack group and the supported equipment, so that the second jack group is mainly protected, and the protection jack group is formed. And a cushion block is arranged between the jack and the equipment. The cushion block is made of soft metal material or other soft materials, carbon fiber is wound outside the soft metal material, and glass fiber or other flexible high-strength materials can be used. The soft metal may be aluminum or tin, so as to ensure that the corresponding contact surface of the cushion block and the device is stressed uniformly and the strength of the cushion block is enough under the condition that the structure of the first bearing part 101 and/or the second bearing part 102 is deformed, thereby playing a role in protection.

The multi-stage support arc-segment pieces 200 are mutually independent, and at least two adjacent or non-adjacent support arc-segment pieces 200 are respectively connected to the first bearing part 101 and the second bearing part 102; the support arc 200 is formed by a rounded corner structure from which the equipment support frame 100 extends, or by a protrusion from which the equipment support frame 100 extends. Preferably, the second supporting portion 102 adopts a jack group with oil passages, and the purpose of the oil passages is to ensure the stress balance of different supporting points by utilizing the liquid property. For example, a jack group, such as a first jack group, is used to support the evaporator end support base and the oil pipe is communicated between the jacks. More preferably, the first jack group communicated with the oil pipe supports the upper supporting seat at the end part of the evaporator, and the second jack group communicated with the oil pipe supports the lower supporting seat of the evaporator, but a gap is reserved, so that the protection function is mainly realized.

According to the overturning and erecting method provided by the invention, equipment is placed on the overturning and erecting device, and the equipment is overturned synchronously through the overturning of the overturning and erecting device. The method comprises the following steps:

step 1: placing the equipment support frame 100 in a horizontal position on the ground and coaxial with another support structure also on the ground and in the same plane as the crane boom;

step 2: lifting the equipment into the saddle and the first bearing part 101 by using a crane, so that the first jack group of the second bearing part 102 is close to the equipment;

step 3: the levelness of the circumferential adjustment device;

step 4: adjusting the first jack group to be attached to the equipment and achieve a preset pretightening force;

step 6: closing the oil inlet main pipe valve of the first jack group and the oil inlet main pipe valve of the second protection jack group;

step 7: connecting a crane with the equipment, and lifting the equipment by the crane to enable the overturning and erecting device to overturn to an erecting position;

step 8: the apparatus is lifted off the second support 102 by a crane.

In a preferred embodiment of the evaporator turning, the turning erection method specifically includes:

step 1: placing the equipment support 100 and a saddle on a horizontal ground, coaxial and coplanar with the crane boom;

step 2: the evaporator is horizontally hung into the saddle by a crane, the small-diameter end part of the evaporator is close to a first protection jack group of the equipment, and a certain gap is reserved;

step 3: circumferentially adjusting the levelness of the evaporator until the axis of the lifting trunnion is parallel to the ground;

step 4: the first jack group is adjusted to be tightly attached to a supporting seat on the end part of the evaporator and achieve a certain pretightening force;

step 5: adjusting the second jack group, and reserving a certain gap with the lower supporting plate at the end part of the evaporator;

step 6: closing a jack oil inlet pipe valve;

step 7: connecting a crane with the lifting trunnion of the evaporator, and slowly lifting; lifting the evaporator until the evaporator is overturned to a completely vertical state;

step 8: the evaporator is lifted off the second support 102 by a crane.

It should be noted that, in some special cases, the device and the turning device are convenient to be fixedly connected and detached, and the structure in the preferred embodiment of the device can be simplified to a certain extent, but should be considered as falling within the protection scope of the present invention.

The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the invention. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.

Claims

1. A roll-over erection device, comprising: an equipment support frame (100), a first bearing part (101) and a second bearing part (102); the equipment support frame (100) has a support arc piece (200);

the first bearing part (101) and the second bearing part (102) are both attached to the equipment support frame (100);

before the overturning and erecting device overturns, the equipment in a horizontal state can be hung from above and is located on the first bearing part (101);

after the overturning and erecting device overturns, the equipment in the vertical state located on the second bearing part (102) can be lifted out from the upper part;

the first bearing part (101) and the second bearing part (102) positively bear equipment in the overturning process;

the supporting arc piece (200) is used as the outer edge of the equipment supporting frame (100) and rolls along the ground when the equipment turns over;

anchor parts or anchor blocks are not needed to be pre-buried on the overturning field;

the equipment comprises a supporting frame (100), and is characterized by further comprising supporting legs (105), wherein one ends of the supporting legs (105) are hinged with the equipment supporting frame (100), and the other ends of the supporting legs (105) can be supported on the ground and move along the ground in the overturning process of the equipment;

when the apparatus reaches an erect state, the flip-up erector is supported by the support legs (105) to be stable.

2. The inverted riser of claim 1 wherein the equipment support frame (100) comprises a truss structure comprising two or more laterally connected side single piece trusses;

3. The turning and erecting device according to claim 1, wherein the first bearing portion (101) and the second bearing portion (102) have a plurality of bearing points, each bearing point dynamically distributes a device bearing force when one end of the device is turned under the action of an external force, and the bearing force and the total moment of gravity of the turning and erecting device are kept dynamically balanced by taking the ground fulcrum of the supporting arc piece (200) as an axis point.

4. The turning upright device according to claim 1, characterized in that the first bearing (101) comprises two sets of horizontally distributed bearing points, one set of bearing points being above the support arc piece (200) and the other set of bearing points being above the horizontal section of the equipment support frame (100).

5. The turning upright device according to claim 4, characterized in that the bearing point of the first bearing (101) is a saddle-shaped support structure, which can be directly matched with the equipment transportation saddle.

6. The turning upright device according to claim 1, characterized in that the second bearing (102) comprises two sets of bearing points which are vertically distributed when the equipment support (100) is in a horizontal state before turning.

7. The turning upright device according to claim 1, characterized in that the bearing point of the second bearing part (102) is provided with hydraulic jacks (106), the second bearing part (102) comprises two groups of hydraulic jacks (106), each group of hydraulic jacks (106) comprises two jacks, and the hydraulic jacks are communicated with the hydraulic pipes of the jacks.

8. The roll-over stand of claim 7, wherein a soft spacer is provided between the jack (106) and the apparatus.

9. The roll-over stand of claim 8, wherein the spacer is a body of flexible material that is externally wrapped with fibers.

10. The turning upright device according to claim 1, characterized in that the supporting arc piece (200) is composed of at least two or more arcs, adjacent arcs being independent or continuous with each other.

11. The inverted riser of claim 1 wherein the support legs (105) comprise struts and braces hingedly connected together.

12. The roll-over stand of claim 11, wherein a sliding wheel is mounted on the support pad, the sliding wheel contacting the ground instead of the support pad when the support bar is within a predetermined angular range, the support bar not functioning as a support.

13. The tipping and erecting device according to claim 1, characterized in that the equipment support frame (100) is provided with a stop block (107), and that the equipment is in a vertical position when the support leg (105) is in contact with the stop block (107) during tipping.

14. A turning erection method, characterized in that a device in a horizontal state is placed on the turning erection device according to any one of claims 1 to 13, and the turning erection device and the device are turned synchronously under the action of external force and are in a natural fitting state; when the apparatus reaches the erect condition, the apparatus can be lifted off the inverted erect device.

15. The roll-over erection method of claim 14, comprising the steps of:

step 2: hanging the evaporator in a horizontal state into a first bearing part (101) by using a crane, wherein the end part of the evaporator is close to a second bearing part (102);

step 3: circumferentially adjusting the levelness of the evaporator;

step 4: adjusting a jack of the second bearing part (102) to be attached to an evaporator end supporting seat and achieve a preset pretightening force, and arranging a cushion block between the evaporator supporting seat and the jack;

step 6: the crane is connected with the evaporator lifting trunnion, the evaporator starts to turn over under the action of the lifting force of the crane, the turning upright device synchronously turns over, and the support leg (105) support pad rolls or slides along the ground;

step 7: continuously lifting the evaporator until the evaporator exceeds the vertical position, and suspending the support legs (105);

step 8: the crane is adjusted to enable the evaporator to return to the vertical position, and the supporting legs (105) are stressed and stably supported on the ground;

16. A roll-over erection device, comprising: the equipment support frame (100) and the multi-stage support arc-shaped section piece (200); wherein the support arc section (200) is connected to the equipment support frame (100);

in the process that the equipment support frame (100) is turned from a horizontal position to an upright position, the multi-stage support arc section pieces (200) roll on the ground sequentially along with the turning of the equipment support frame (100) to serve as fulcrums;

the equipment support frame (100) comprises a first bearing part (101) and a second bearing part (102);

when the equipment support frame (100) is in a horizontal position, the first bearing structure (101) forms a bearing structure in a vertical cube direction;

the second bearing structure (102) forms a bearing structure in the vertical direction when the equipment support frame (100) is in the vertical position;

17. The tipping and erecting device according to claim 16, characterized in that when the equipment support frame (100) is in a horizontal position, equipment can be suspended from directly above to sit on the first bearing structure (101);

when the equipment support frame (100) is in the upright position, equipment sitting on the second bearing structure (102) can be lifted out from directly above;

the first supporting structure (101) and the second supporting structure (102) only support the equipment in a fitting mode;

the first bearing part (101) and/or the second bearing part (102) comprises a first jack group (103) and/or a second jack group (104), and each group of jack oil ways are communicated;

the first jack group (103) supports equipment, and a gap is reserved between the second jack group (104) and the equipment;

a cushion block is arranged between the jacks of the first jack group (103) and/or the second jack group (104) and the equipment;

the cushion block is made of a soft material body, and the outside of the soft material body is wound by fibers;

the multistage support arc sections (200) are mutually independent, and at least two adjacent or non-adjacent stage support arc sections (200) are respectively connected to the first bearing part (101) and the second bearing part (102);

the support arc piece (200) is formed by a rounded corner structure extending from the equipment support frame (100) or by a protruding part extending from the equipment support frame (100).

18. A turning erection method, characterized in that the apparatus is placed on the turning erection device of any one of claims 16 to 17, and the turning erection device is turned synchronously when the apparatus is turned under an external force.

19. The roll-over erection method of claim 18, comprising the steps of:

step 1: placing the equipment support frame (100) as a support in a horizontal position on the ground and coaxial with another support also on the ground and in the same vertical plane as the crane boom;

step 2: hoisting the equipment into the equipment support frame (100) and the other support by a crane, wherein the first jack group is close to the equipment;

step 3: the levelness of the circumferential adjustment device;

step 4: adjusting the first jack group (103) to be attached to the equipment and achieve a preset pretightening force, and arranging a cushion block between the equipment and the jacks;

step 5: adjusting a second jack group (104), and reserving a reserved gap between the second jack group and equipment;

step 6: closing oil inlet main pipe valves of the first jack group (103) and the second jack group (104);

step 8: the apparatus is lifted off the second support (102) by a crane.

20. The inverted erection device or the method of the inverted erection device according to any one of claims 1 to 19 wherein the apparatus is an evaporator or a pressure vessel.

21. The inverted erection device or the method of the inverted erection device according to any one of claims 1 to 19 wherein the equipment is nuclear power plant main system equipment.