CN215393354U - Pipe body sectional connecting device - Google Patents

Abstract

The utility model relates to the technical field of pipe body subsection connection, in particular to a pipe body subsection connection device which comprises an annular operation platform, wherein the annular operation platform is detachably encircled on the peripheral surface of a pipe body subsection, the annular operation platform can lift along the axial direction of the pipe body subsection and stays at a designated position, the annular operation platform bears operating personnel and welding equipment, and the welding equipment is used for the operating personnel to weld the pipe body subsection to be connected. The direct welding connection between each pipe body section is realized through the annular operation platform, a flange plate connecting structure at the end part of each pipe body section is cancelled, the cost can be greatly reduced, the requirement on the installation operation precision is reduced, meanwhile, the continuity and the reliability of the integral structure of the pipe body are improved and ensured, and the annular operation platform can be widely applied to the field construction and processing scenes of a fan tower cylinder, a large-scale towering platform pile leg and the like in the wind power industry.

Description

Pipe body sectional connecting device

Technical Field

The utility model relates to the technical field of pipe body sectional connection, in particular to a pipe body sectional connection device.

Background

Large tubular structures (pipe bodies) are widely applied to various engineering fields, such as a tower of a wind turbine generator, a large structural pile leg and the like. The cross section of the tube body has a circular cross section and also has a square or other cross section. For a large structure containing large pipe bodies, taking a wind turbine tower drum of wind power as an example, the diameter of a terrestrial tower drum is about 4 meters, the diameter of a tower drum of a marine large wind turbine can reach 8 meters, the future size of the tower drum can be larger, and after the wind turbine tower drum is installed, the height of the pipe bodies can reach dozens of meters or even hundreds of meters. Therefore, in consideration of transportation capacity limitation, such pipe bodies are usually prefabricated in sections, and after the prefabricated pipe bodies are transported to the site in sections, the pipe bodies are connected section by section to form a whole pipe body structure.

In the prior art, flanges are welded at the end parts (two ends or one end) of each pipe body segment in advance, after the pipe body segments are transported to the site, the pipe body segments to be connected are hoisted one by one to the upper part of the connected and fixed pipe body segments through hoisting, the flanges are aligned and connected, and then the flanges which are connected in an abutting mode are connected and fixed through bolts, so that the connection between the two pipe body segments is realized. According to the traditional connecting method, due to the fact that the flange plates are arranged on the pipe body sections, the structural continuity of the whole pipe body after the connection is finished is damaged, in order to guarantee the integrity of the whole pipe body structure, the flange plates need to be made very strong and are welded to the end portions of the pipe body sections, the requirements on the reliability and the fatigue property of the flange plates are extremely high, even special forged pieces are needed to meet the requirements, the cost is high, the equipment is expensive, and the process is complex. Meanwhile, the flange plates are connected through high-strength bolts, the bolts are subjected to loads with different amplitudes for a long time, the risk of loosening is caused, and extremely high requirements are imposed on the fatigue life and the reliability of the bolts.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a pipe body section connecting device, which can improve the continuity and reliability of the whole structure of a pipe body and reduce the cost so as to overcome the defects in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a pipe body subsection connecting device which comprises an annular operating platform, wherein the annular operating platform detachably surrounds the peripheral surface of a pipe body subsection, the annular operating platform can lift along the axial direction of the pipe body subsection and stays at a designated position, the annular operating platform bears operating personnel and welding equipment, and the welding equipment is used for the operating personnel to weld the pipe body subsection to be connected.

Preferably, the annular operating platform comprises a plurality of trapezoid sections which are sequentially connected end to end, and the head end of the first trapezoid section and the tail end of the last trapezoid section can be connected to form the annular operating platform or separated from the annular operating platform.

Preferably, adjacent trapezoidal sections are hinged.

Preferably, the annular operating platform is provided with a lifting mechanism, and the lifting mechanism enables the annular operating platform to lift along the axial direction of the pipe body section.

Preferably, the annular operating platform is provided with a locking structure, and the locking structure enables the annular operating platform and the pipe body to be relatively fixed or relatively liftable.

Preferably, a centering structure is arranged in the pipe body segment, and the centering structure enables the two pipe body segments to be connected to be centered with each other.

Preferably, the annular operating platform also carries one or more of the following devices: welding pretreatment equipment, heat preservation equipment, welding detection equipment, welding seam polishing equipment, anticorrosion laying equipment and hoisting equipment.

Compared with the prior art, the utility model has the remarkable progress that:

the direct welding connection between each pipe body section is realized through the annular operation platform, a flange plate connecting structure at the end part of each pipe body section is cancelled, the cost can be greatly reduced, the requirement on the installation operation precision is reduced, meanwhile, the continuity and the reliability of the integral structure of the pipe body are improved and ensured, and the annular operation platform can be widely applied to the field construction and processing scenes of a fan tower cylinder, a large-scale towering platform pile leg and the like in the wind power industry.

Drawings

Fig. 1 is a schematic view of the annular operating platform surrounding the pipe segment of the pipe segment connecting device according to the embodiment of the present invention.

Fig. 2 is an expanded view of the ring-shaped operating platform of the pipe segment connecting device according to the embodiment of the utility model.

Fig. 3 to 7 are schematic views illustrating the use steps of the pipe segment connecting device according to the embodiment of the present invention.

Wherein the reference numerals are as follows:

1 annular operating platform

11 trapezoidal section

2 pipe body segmentation

3 mounting base surface

4 hoisting device

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to limit the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. 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 addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 to 7, an embodiment of the pipe body segment connecting device of the present invention is shown.

Referring to fig. 1, 3 and 4, the pipe body segment connecting device of the present embodiment includes an annular operating platform 1. Annular operation platform 1 detachably encircles in the outer peripheral face of body segmentation 2, and annular operation platform 1 can rise along the axial of body segmentation 2 and stop at the assigned position, and this assigned position can be the body segmentation 2 axial arbitrary position. Annular operation platform 1 bears operating personnel and welding equipment, and welding equipment supplies operating personnel to weld body segmentation 2 of treating the connection. The welding equipment preferably adopts the existing automatic welding equipment.

When in use, referring to fig. 3 to 7, the annular operating platform 1 can be mounted around the outer peripheral surface of a vertically placed pipe body segment 2, so that the annular operating platform 1 can carry operators and welding equipment to ascend to the upper end of the pipe body segment 2 along the axial direction of the pipe body segment 2 and stay at a designated operation position (i.e. a welding position), and then the other pipe body segment 2 is vertically lifted above the pipe body segment 2, the two pipe body sections 2 can be welded by an operator by using welding equipment, after the welding is finished, the annular operating platform 1 is enabled to bear the operator and the welding equipment to continuously ascend to the next operation position, the next pipe body section 2 can be continuously welded, from this can realize that all body subsections 2 weld in proper order one by one, form body overall structure, need not weld the flange in advance at the both ends of body subsection 2 and connect body subsection 2.

The pipe body section connecting device of this embodiment realizes through cyclic annular operation platform 1 that each body section 2 is between direct welded connection, has cancelled the ring flange connection structure of body section tip, can reduce cost by a wide margin, reduces the requirement to installation operation precision, improves and ensures the overall structure continuity and the reliability of body simultaneously. The pipe body section connecting device can be widely applied to site construction and processing scenes of fan tower drums in the wind power industry, large-scale high-rise sightseeing platform pile legs and the like.

Referring to fig. 1 and 2, in the present embodiment, preferably, the annular operating platform 1 includes a plurality of trapezoidal segments 11 connected end to end in sequence, and a head end of a first trapezoidal segment 11 and a tail end of a last trapezoidal segment 11 can be connected to form the annular operating platform 1 or separated from each other, thereby realizing the encircling installation and detachment of the annular operating platform 1 on the outer circumferential surface of the pipe body segment 2. The detachable connection mode of the head end of the first trapezoidal section 11 and the tail end of the last trapezoidal section 11 is not limited, and any detachable connection mode, such as screw connection, pin bolt connection and the like, can be adopted. The size quantity of trapezoidal section 11 is not restricted, can design according to the structure size of body segmentation 2 that treats the connection for annular operation platform 1 can encircle the cooperation with the outer peripheral face of body segmentation 2 can.

Preferably, adjacent trapezoidal sections 11 in the annular operating platform 1 are hinged to each other, so that the adjacent trapezoidal sections 11 can rotate relatively to each other, thereby providing a flexible deformation for the encircling installation and the disassembly of the annular operating platform 1 on the outer circumferential surface of the pipe body segment 2.

In this embodiment, preferably, the annular operating platform 1 is provided with a lifting mechanism (not shown in the figure), and the lifting mechanism lifts the annular operating platform 1 along the axial direction of the pipe body segment 2, so as to realize the self-climbing function of the annular operating platform 1. The form of the lifting mechanism is not limited, and any structure capable of realizing the lifting action in the prior art, such as a roller which is driven to roll on the outer circumferential surface of the pipe body segment 2 along the axial direction, may be adopted.

In this embodiment, preferably, the annular operating platform 1 is provided with a locking structure (not shown in the figure), and the locking structure enables the annular operating platform 1 and the pipe body segment 2 to be relatively fixed or relatively liftable. Namely, the locking structure enables the annular operating platform 1 and the pipe body segment 2 to be in a tightly holding and locking state or a loosening state, when the annular operating platform 1 and the pipe body segment 2 are in the tightly holding and locking state, the annular operating platform 1 and the pipe body segment 2 are relatively fixed, and at the moment, the annular operating platform 1 stays at a specified position on the pipe body segment 2; when becoming the unclamped state between cyclic annular operation platform 1 and the body segmentation 2, cyclic annular operation platform 1 and body segmentation 2 liftable relatively, at this moment, cyclic annular operation platform 1 can be followed body segmentation 2 axial lifts. The form of the locking structure is not limited, and any structure capable of realizing locking and unlocking actions in the prior art, such as a brake structure, can be adopted.

The body segmentation connecting device of this embodiment, install annular operation platform 1 after encircling the outer peripheral face at body segmentation 2, can make earlier become the unclamping state between annular operation platform 1 and the body segmentation 2 through locking structure, make annular operation platform 1 go up and down to assigned position department along 2 axial of body segmentation through elevating system, rethread locking structure makes between annular operation platform 1 and the body segmentation 2 become to embrace tightly the locking state, realize from this that annular operation platform 1 can go up and down and stop at assigned position along the axial of body segmentation 2, in order to guarantee going on smoothly of welding jobs. After a welding operation is accomplished, can make through locking structure become the unclamping state between cyclic annular operation platform 1 and the body segmentation 2, cyclic annular operation platform 1 passes through elevating system along 2 axial displacement of body segmentation to next operation position, and rethread locking structure makes and becomes between cyclic annular operation platform 1 and the body segmentation 2 and hold the locking state tightly, can carry out next welding operation, accomplishes the welding one by one in proper order until all body segmentation 2.

In this embodiment, it is preferable that a centering structure (not shown) is provided in the pipe body segment 2, and the centering structure centers the two pipe body segments 2 to be connected with each other. The two pipe body subsections 2 to be connected are centered through the centering and positioning structure before welding, so that the end faces of the two pipe body subsections 2 to be connected can be conveniently and accurately butted, and the welding accuracy and the welding quality can be favorably ensured. The specific form of the centering and positioning structure is not limited, and any structure capable of realizing centering in the prior art can be adopted, such as centering marks respectively arranged on two pipe body segments 2 to be connected.

In this embodiment, preferably, the annular operating platform 1 may further carry one or more of the following devices: welding pretreatment equipment, heat preservation equipment, welding detection equipment, welding seam polishing equipment, anticorrosion laying equipment and hoisting equipment. The welding pretreatment equipment is used for polishing the end faces of the two pipe body sections 2 to be connected before welding, and cutting and polishing a proper groove for subsequent welding. The heat preservation equipment is used for carrying out heat preservation treatment on a welding area after welding. The welding detection equipment is used for carrying out buckling detection before welding and nondestructive inspection after welding on the end faces of the two pipe body sections 2 to be connected, and detecting whether a welding seam is qualified. The welding seam polishing equipment is used for polishing and flattening welding seams which are qualified after welding inspection so as to improve the overall fatigue characteristic of the welding seams and prepare for anti-corrosion laying. And the anti-corrosion laying equipment is used for laying an anti-corrosion coating on the ground welding area. The hoisting equipment is used for realizing the hoisting function. In this embodiment, welding pretreatment equipment, heat preservation equipment, welding check out test set, welding seam equipment of polishing, anticorrosive laying apparatus and the equipment of lifting by crane all can adopt current equipment.

In order to improve the working efficiency, preferably, all the devices (welding device, welding pretreatment device, welding detection device, welding seam polishing device and anti-corrosion laying device) borne by the annular operating platform 1 can move circumferentially around the pipe body segment 2 on the annular operating platform 1, so as to realize circumferential welding of the pipe body segment 2.

In addition, according to specific work requirements, other functional devices, such as welding preheating devices and the like, can be carried and equipped on the annular operating platform 1.

Referring to fig. 3 to 7, the method for connecting the pipe body segment 2 by using the pipe body segment connecting device of the present embodiment sequentially includes the following steps.

Referring to fig. 3, a pipe segment 2 is vertically placed on an installation base surface 3 (such as the ground), and an annular operating platform 1 is placed on the installation base surface 3 and surrounds the outer peripheral surface of the pipe segment 2. At this moment, the head end of the first trapezoidal section 11 of the annular operating platform 1 is connected with the tail end of the last trapezoidal section 11, and the annular operating platform is arranged on the outer peripheral surface of the pipe body section 2 in an encircling manner, the locking structure enables the annular operating platform 1 and the pipe body section 2 to be in a loosening state, and the operating platform 1 and the pipe body section 2 can be lifted relatively.

And step two, referring to fig. 4, the annular operating platform 1 is lifted to the upper end of the pipe body section 2 along the axial direction of the pipe body section 2 and stays at the operating position while carrying an operator and welding equipment. In this embodiment, the annular operating platform 1 is lifted to a designated operating position along the axial direction of the pipe body segment 2 by the lifting mechanism, the operating position is a welding position, and the annular operating platform 1 and the pipe body segment 2 are held at the operating position in a tightly-holding and locking state by the locking structure. Preferably, the ring-like operating platform 1 also carries one or more of the following devices: welding pretreatment equipment, heat preservation equipment, welding detection equipment, welding seam polishing equipment, anticorrosion laying equipment and hoisting equipment.

And step three, referring to fig. 5, vertically hoisting the next pipe body segment 2 above the previous pipe body segment 2, so that the lower end surface of the next pipe body segment 2 is opposite to the upper end surface of the previous pipe body segment 2, and the next pipe body segment 2 is suspended above the previous pipe body segment 2. The lifting and suspension maintenance of the next pipe section 2 can be achieved by means of existing lifting devices 4. Preferably, after the next pipe body segment 2 is hoisted in place, an operator can polish the end faces of the two pipe body segments 2 on the annular operating platform 1 by using welding pretreatment equipment, and cut and polish a proper groove for subsequent welding. Preferably, after the end face pretreatment of the two pipe body segments 2 is completed by using the welding pretreatment equipment, the welding detection equipment can be used for performing the buckling detection before welding on the end faces of the two pipe body segments 2. Then, can make two body segmentation 2 centering through the centering location structure that is equipped with in the body segmentation 2 to the body segmentation 2 that will be located the top is transferred, makes two body segmentation 2's the accurate butt joint of terminal surface. After the end surfaces of the two pipe body sections 2 are butted, the hoisting device 4 is not disengaged temporarily so as to ensure safety.

And step four, welding the two pipe body sections 2 on the annular operating platform 1 by using welding equipment by an operator. Preferably, after welding, nondestructive inspection can be performed on the welded seam by using welding detection equipment, and whether the welded seam is qualified or not is checked. And (4) cutting and polishing the unqualified welding line, and then re-welding the unqualified welding line until the welding line is repaired to be qualified. And for the welding seams which are qualified in inspection, the welding seams can be polished to be smooth by utilizing welding seam polishing equipment so as to improve the overall fatigue property of the welding seams and prepare for anti-corrosion laying. And (4) laying an anticorrosive coating on the welded seam area after polishing by using anticorrosive laying equipment.

And step five, repeating the step two to the step four, and welding all the pipe body sections 2 one by one in sequence. Referring to fig. 6, after the first welding is completed, the hoisting device 4 can be unfastened, the annular operating platform 1 and the current pipe body segment 2 are in a loose state through the locking structure, the annular operating platform 1 carries an operator and welding equipment through the lifting mechanism, the welding pretreatment equipment, the welding detection equipment, the welding seam polishing equipment and the anti-corrosion laying equipment ascend to the uppermost end along the axial direction of the welded pipe body segment 2 and stop at the next operation position, then the next pipe body segment 2 to be connected can be lifted and welded according to the third step and the fourth step, the sequential welding of the remaining pipe body segments 2 to be connected is completed one by one, and finally, the sequential welding of all the pipe body segments 2 is completed one by one to form a pipe body integral structure.

Sixthly, referring to fig. 7, after all the pipe body sections 2 are welded one by one, the hoisting device 4 is unfastened, the annular operating platform 1 and the current pipe body section 2 are in a loosened state through the locking structure, the annular operating platform 1 bears operating personnel and welding equipment, welding pretreatment equipment, welding detection equipment, welding seam polishing equipment and anticorrosion laying equipment through the lifting mechanism and descends to the installation base surface 3 along the axial direction of the welded pipe body overall structure, then the head end of the first trapezoidal section 11 of the annular operating platform 1 is disassembled from the tail end of the last trapezoidal section 11, the annular operating platform 1 can be disassembled from the pipe body overall structure, and the next operating station can be transported for construction.

The connection of the individual tube sections 2 of a tube overall is thereby completed.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims (7)

1. The utility model provides a body segmentation connecting device, its characterized in that, includes cyclic annular operation platform, cyclic annular operation platform detachably encircles in the outer peripheral face of body segmentation, cyclic annular operation platform can follow the body segmented axial goes up and down and stops at the assigned position, cyclic annular operation platform bears operating personnel and welding equipment, the welding equipment supplies operating personnel treats the body segmentation of connecting and welds.

2. The pipe body segment connecting device of claim 1, wherein the annular operating platform comprises a plurality of ladder sections connected end to end in sequence, and a head end of a first ladder section and a tail end of a last ladder section can be connected to form the annular operating platform or separated from the annular operating platform.

3. The pipe body segment connecting device of claim 2, wherein adjacent trapezoidal segments are hinged.

4. The pipe body segment connecting device according to claim 1, wherein the annular operating platform is provided with a lifting mechanism that lifts the annular operating platform in an axial direction of the pipe body segment.

5. The device for connecting pipe sections according to claim 1, wherein the annular operating platform is provided with a locking structure, and the locking structure enables the annular operating platform and the pipe sections to be relatively fixed or relatively liftable.

6. A pipe body segment coupling device as claimed in claim 1, wherein a centring formation is provided in the pipe body segment, the centring formation centring the two pipe body segments to be coupled relative to each other.

7. The pipe body segment connecting device of claim 1, wherein the annular operating platform further carries one or more of the following: welding pretreatment equipment, heat preservation equipment, welding detection equipment, welding seam polishing equipment, anticorrosion laying equipment and hoisting equipment.

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