CN214653171U - Heat collector hoisting portal frame - Google Patents

Abstract

The utility model provides a heat collector hoist and mount portal includes: the hydraulic crane comprises a flange base, supporting legs, a crane, a hydraulic arm crane operation platform, a steel strand guide pipe, a steel strand support and a connecting piece, wherein the supporting legs are arranged above the flange base, and the crane, the crane operation platform, the steel strand guide pipe and the steel strand support are arranged on the supporting legs.

Description

Heat collector hoisting portal frame

Technical Field

The utility model relates to a heat collector installation technical field, especially a heat collector hoist and mount portal.

Background

The tower type fused salt photo-thermal power generation technology has been commercialized in a large quantity with the advantages of high light concentration ratio, high photo-thermal conversion efficiency, continuous power generation at night and automatic peak regulation.

The main construction area of the photothermal power station is divided into a mirror field area and a power island area, wherein the power island area is the core of the whole power station, all frequent solar energy is collected into a heat collector on a power island core building-light tower, so that the solar energy is converted into heat energy of molten salt, steam is generated when the molten salt exchanges heat with water to generate power, the light tower belongs to a high-rise building, the height is generally more than 190m, and the chimney of the photothermal power station is different from a chimney of a common thermal power station in that the chimney is an integrated structure integrating structures, equipment, pipelines, heat insulation, heat collection and a building elevator, and the construction difficulty is high.

Most mechanisms and equipment construction in the prior art are hoisted by means of an externally attached tower crane, a heat collector steel frame is generally of a non-independent all-steel structure, and in a steel frame overall structure model and a construction process, the lower part of the steel frame is supported at the top of a concrete tower tube at a certain height above the ground and is connected with a steel beam at the top of the concrete tower tube through bolts. The heat collector steel frame is of a cylindrical structure, 16 main bearing columns are arranged on the inner side of the molten salt heat collector in a cylindrical shape, and 4 steel columns are additionally arranged inside the heat collector steel frame and used as an elevator shaft and supporting top rotary crane equipment; the heat collector steel frame column base is fixed with a concrete tower cylinder top supporting steel beam through bolts, bolts used for connecting the heat collector steel frame column base are required to be fixed on the supporting steel beam before a tower cylinder top floor slab is poured on site, extra protection is required to be carried out on the bolts, damage to the bolts and threads is prevented, in the installation process, the components are required to be guaranteed to be firmly connected so as to guarantee safety and reliability under the conditions of constant load, wind load, earthquake action and installation load, and the current hoisting scheme is difficult to guarantee.

In addition, various detailed problems related to the type selection and installation of the tower crane need to be comprehensively demonstrated and planned, and scientific, reasonable and economic mechanical allocation and installation schemes are difficult to obtain, so that the construction progress of the light tower is slowed down, the construction cost is extremely high, and the following typical technical problems exist specifically:

1. the selection of the tower crane is complex, the selection of the maximum lifting capacity, the maximum lifting height and the arm length is included, and the selection of the tower crane is complex by combining the selection processes, so that the tower crane with the best economical efficiency and effect is difficult to select;

2. the tower crane needs to be inspected, overhauled and modified before installation and also needs to be installed with the tower crane in an attached manner, and the selection of jacking time and the construction period are difficult to coordinate, so that the high reliability and the short hoisting time of the hoisting machinery are ensured, and the influence of the jacking work of the tower crane on the construction period is reduced to the maximum extent;

3. in order to save the up-down time of the workers and simultaneously save the physical strength of the jacking workers, a separate upper walking path needs to be designed, and the workers need to be dismantled in the later period, so that the engineering loss is increased, and the working efficiency is reduced;

4. the tower crane hoisting machine is large in risk, the tower crane hoisting machine is arranged at the top of the light-gathering and heat-absorbing system, the arrangement height is about 220m, the size is large, and the fact that a hoisted heat collector with huge weight can be reliably suspended at the top before being assembled at the top of the light-gathering and heat-absorbing system is difficult to ensure.

Even if an internal hoisting mode is adopted, a mature and reliable hoisting portal frame scheme does not exist in the prior art, so that a new heat collector hoisting portal frame needs to be researched, the heat collector can be reliably hoisted to the top of the light tower, and one or more technical problems are solved.

Disclosure of Invention

In order to solve one or more technical problem among the prior art, the utility model provides a heat collector hoist and mount portal, include: flange base (2), landing leg (3), hoist (4), hydraulic crane operation platform (5), steel strand wires pipe (6), steel strand wires support (7) and connecting piece are constituteed, and flange base (2) top sets up landing leg (3), installation hoist (4), hoist operation platform (5), steel strand wires pipe (6) and steel strand wires support (7) on landing leg (3).

According to the utility model discloses a still another aspect, flange base (2) include flange base main part (21) and built-in fitting (22), flange base main part (21) and built-in fitting (22) pass through bolted connection.

According to the utility model discloses a still another aspect, the built-in fitting is pre-buried steel sheet, and a plurality of rigidity landing legs are stretched out to pre-buried steel sheet lower extreme, and the landing leg needs pre-buried in the concrete basement, and pre-buried steel sheet surface flatness and levelness need be ensured to while mounting flange base in-process.

According to the utility model discloses a further aspect, landing leg (3) adopt M type landing leg to guarantee reliably supporting weight, and there are two landing legs respectively to pass through 10.9 grades phi 24 & 120 half silk bolt + nut and support flange (2) fixed connection the landing leg both sides.

According to a further aspect of the invention, the crane (4) employs a MSR hydraulic crane apparatus.

According to the utility model discloses a still another aspect, hydraulic crane operation platform (5) include platform main part (51), platform cat ladder (52), railing (53) and platform supporter (54), and wherein operating personnel climbs on operation platform through platform cat ladder (52) of platform main part (51) one side, and platform supporter (54) support is in platform main part (51) below.

According to another aspect of the utility model, platform supporter (54) is long circular arc, and the centre is equipped with the arc opening as the mounted position of hydraulic crane and the steel strand wires jack that drives, and hydraulic crane installs in the platform main part, platform supporter (54) is connected with landing leg (4) through 10.9 grades phi 24 phi 120 half-wire bolt + nut, is connected with platform main part (51) through 10.9 grades phi 24 phi 120 half-wire bolt + nut simultaneously.

According to the utility model discloses a further aspect, platform main part (51) partly stretches out platform supporter (54) outside installation, platform supporter (54) both ends set up the curb plate respectively to increase the support intensity.

According to the utility model discloses a still another aspect, steel strand wires pipe (6) are inlayed and are installed in platform supporter (54) one side, steel strand wires pipe (6) wholly are leaks hopper-shaped, and upper portion is big-end-up's hourglass hopper-shaped rigidity opening, and the lower part is the multistage flexible pipe, and the flexible pipe diameter is the same with rigidity open-ended minimum diameter, and the top flexible pipe sets up the connecting piece with platform supporter (54), and the position of lower extreme flexible pipe is confirmed according to civil engineering construction requirement and engineering concrete requirement, the axis of steel strand wires pipe (6) and the one end parallel and level of steel strand wires support (7), for its transport steel strand wires.

According to another aspect of the invention, the steel strand support (7) is mounted on the platform body (51) with the side opposite the jack being opposed by a funnel-shaped opening for conveying the steel strand, which opening is completely identical to the opening of the steel strand conduit (6).

Compared with the prior art, the utility model discloses one or more technical effect below having:

1) the used hoisting portal device has the advantages of simple structure, small hoisting part volume, light weight, capability of ensuring safe construction and simple construction process;

2) various detailed problems of type selection and installation of the transfer equipment do not need to be considered in the hoisting process, so that a scientific, reasonable and economic heat collector hoisting mechanical equipment and installation scheme is obtained in a hydraulic hoisting mode, the construction progress of the light tower is improved, and the construction cost is greatly reduced.

3) The work that can high-efficient reliable completion heat collector from assembling the factory to accurate hoist and fix a position in light tower top can be calculated and control according to operating condition, real-time adjustment equipment parameter, and the flexibility ratio is high.

Drawings

So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments. The accompanying drawings relate to preferred embodiments of the present invention and are described below:

fig. 1 is an effect diagram of a light tower top lifting gantry according to a preferred embodiment of the present invention;

fig. 2 is a schematic structural view of each individual hoisting portal according to the preferred embodiment of the present invention;

fig. 3a is a schematic structural view of a flange base according to a preferred embodiment of the present invention;

fig. 3b is a schematic view of the installation structure of the flange base 2 according to the preferred embodiment of the present invention;

fig. 4 is a schematic structural view of a leg according to a preferred embodiment of the present invention;

fig. 5a is a schematic structural view of a hydraulic crane operating platform according to the preferred embodiment of the present invention;

FIG. 5b is a schematic structural view of a platform support according to a preferred embodiment of the present invention;

fig. 5c is a schematic view of an assembly structure of the platform main body and the platform supporting body according to the preferred embodiment of the present invention;

fig. 6a is a schematic view of an assembly structure of the steel strand conduit 6 embedded in one side of the platform support 54 according to the preferred embodiment of the present invention;

fig. 6b is a schematic structural view of a steel strand conduit according to a preferred embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the various embodiments, one or more examples of which are illustrated in each figure. The examples are provided by way of explanation and are not meant as limitations. For example, features illustrated or described as part of one embodiment can be used on or in conjunction with any other embodiment to yield yet a further embodiment. The present invention is intended to embrace such modifications and variations.

In the following description of the drawings, the same reference numerals indicate the same or similar components. Generally, only the differences between the individual embodiments will be described. Descriptions of parts or aspects in one embodiment can also be applied to corresponding parts or aspects in another embodiment, unless explicitly stated otherwise.

As shown in fig. 1, which is an effect diagram of a gantry for hoisting the top of a light tower, the gantry for hoisting the top of a heat collection tower is composed of 16 independent gantries 1. Referring to fig. 2, each individual hoisting gantry is shown in a schematic structural view, wherein each individual gantry comprises: the hydraulic crane comprises a flange base 2, supporting legs 3, a crane 4, a hydraulic crane operating platform 5, a steel strand guide pipe 6, a steel strand support 7 and a connecting piece, wherein the supporting legs 3 are arranged above the flange base 2, and the crane 4, the crane operating platform 5, the steel strand guide pipe 6 and the steel strand support 7 are arranged on the supporting legs 3.

As shown in fig. 3a, the flange base 2 includes a flange base main body 21 and an embedded part 22, the flange base main body 21 is connected with the embedded part 22 through bolts, the embedded part is an embedded steel plate in the embodiment, a plurality of rigid support legs extend out of the lower end of the embedded steel plate, the support legs need to be embedded in a concrete substrate, and meanwhile, the surface flatness and the levelness of the embedded steel plate need to be ensured in the process of installing the flange base. As shown in fig. 3b, the flange base 2 needs to be installed in advance, and in this embodiment, the flange installation at the bottom of the MSR gantry of the heat collector is the basis of the whole installation work, and the installation accuracy directly affects the positioning of the gantry and the center position of the hydraulic crane 4.

As shown in the schematic structural diagram of the supporting leg 3 shown in fig. 4, in this embodiment, an M-shaped supporting leg is used to ensure reliable support of weight, and two supporting legs are respectively arranged on two sides of the supporting leg and are fixedly connected with the supporting flange 2 through 10.9-grade phi 24 x 120 half-wire bolts and nuts, so as to reduce pressure.

In the embodiment, the crane 4 adopts an MSR hydraulic crane device, and the installation instruction of the MSR hydraulic crane device is described in detail in the MSR hoisting scheme and can also be obtained in the instruction of a commercially available product.

As shown in fig. 5a, the hydraulic crane operation platform 5 includes a platform main body 51, a platform ladder 52, a rail 53, and a platform support 54, wherein an operator steps on the operation platform through the platform ladder 52 on one side of the platform main body 51, and the platform support 54 is supported below the platform main body 51.

As shown in fig. 5b, the platform support 54 is in an elongated arc shape, and an arc opening is provided in the middle of the platform support to serve as a mounting position for the hydraulic crane and the driven steel strand jack, and the hydraulic crane is mounted on the platform body. The material and the setting of railing handrail are confirmed according to the requirement of owner, and the cat ladder is confirmed according to the requirement of owner and civil engineering. The platform support 54 is connected to the leg 4 by 10.9 steps of 24 x 120 half-wire bolt + nut, and is connected to the platform body 51 by 10.9 steps of 24 x 120 half-wire bolt + nut.

In the embodiment shown in fig. 5c, the platform main body 51 partially extends out of the platform support 54 to be installed, so that the consumable consumption is reduced on the basis of ensuring the strength, and the work load is saved. The platform support 54 is provided with side plates at both ends thereof, respectively, to increase the supporting strength.

The steel strand guide 6 is mounted to one side of the platform support 54 as shown in figure 6 a. As shown in fig. 6b, the steel strand conduit 6 is a schematic structural diagram, and has a funnel shape as a whole, a rigid opening with a large upper part and a small lower part in the funnel shape is arranged at the upper part, a plurality of sections of flexible pipes are arranged at the lower part, the diameter of the flexible pipe is the same as the minimum diameter of the rigid opening, a connecting piece for connecting with the platform support 54 is arranged at the uppermost flexible pipe, and the connecting piece in this embodiment is a channel steel matched high-strength bolt or screw; and the position of the flexible pipe at the lowermost end is determined according to civil engineering construction requirements and engineering specific requirements. The axis of the steel strand conduit 6 is flush with one end of the steel strand support 7, and the steel strand is conveyed for the steel strand conduit.

The wire support 7 is constructed as shown in fig. 1 and 2 and is mounted on the platform body 51 opposite the jack and has a funnel-shaped opening for conveying the wire, which is substantially the same size as the opening of the wire guide 6. The hoisting axis is aligned with the MSR lifting lug. And determining the position of the PPU of the steel strand jack according to the hoisting axis.

In this embodiment, the hoisting weight of 6000KG does not include the specific construction sequence of jack, steel strand, FAH or steel strand support: the method comprises the steps of gantry ground combination, bottom support flange in place, gantry hoisting in place and adjustment.

First, portal bottom surface combination

1. And (3) door frame combination: and (4) checking whether the sizes and the numbers of the components are matched with the drawings before combination and combining the rechecked sizes after flange installation and acceptance check. The combination sequence is as follows: the support legs 3 are combined firstly, then are connected with a hydraulic crane mounting platform 5 through bolts, and finally auxiliary structures such as a crossbeam upper platform ladder stand 52, a railing 53 and a steel strand guide pipe 6 are mounted.

2. The supporting legs 3 are combined: the key point of the whole combination work is that two base supporting flanges 2 are firstly preassembled on the ground and the supporting legs 3, then the two flanges are connected and fixed by channel steel, the subsequent base flange mounting precision is ensured to meet the bolt penetrating and mounting requirement, and the perpendicularity of the stand column and the levelness and the distance of the upper flange are checked and adjusted before welding.

3. And after the 16 gantries are combined, the gantry is transported to a hoisting area below a 20t tower crane of the heat collecting tower by using a flat car, and after the support flanges are qualified, the gantry is hoisted in place one by one, and all bolts are fastened. And after the completion, rechecking the installation sizes of all the door frames and the bolt torque, and applying for acceptance after the confirmation of no errors. In order to prevent the portal frame from swinging under the influence of wind power in the hoisting process, 16 portal frames are connected into a whole by using # 20I-steel after the portal frame is aligned, the connection mode adopts bolt connection, and the ground combination is that the portal frame and the I-steel connecting lifting lug are processed and welded on the portal frame and the I-steel.

4. And carrying out related checking calculation on the design of the hoisting portal base plate and the portal.

Secondly, the procedures of positioning and installing the bottom supporting flange are as follows:

1. and (3) checking an embedded part for installing a portal at the position of the elevation 220m of the heat collecting tower, removing impurities on the surface of the embedded steel plate, and checking the surface flatness and levelness of the embedded steel plate.

2. And mounting a bottom support flange. And cleaning the upper surface of the bottom supporting flange, using a 20T building crane, and placing 32 portal frames and 2 bottom supporting flange supporting flanges of each portal frame on the embedded steel plate.

3. Drawing longitudinal and transverse center lines on the upper surface of the bottom support flange by taking the bolt holes as a reference, measuring and adjusting the sizes, heights and levelness of the diagonal angles and the intervals of the bolts of the adjacent support flanges, strictly controlling the center of the hydraulic crane platform to be aligned with the center line of the MSR support, and keeping all the dimensional errors to be not more than 3 mm. And after the requirements are met, spot welding is carried out for fixation. And after all spot welding is finished, rechecking whether the data are changed or not, and welding the bottom support flange on the embedded steel plate after the data are confirmed to be correct. During welding, deformation is controlled, and horizontal changes of the upper flange need to be detected.

The hoisting portal device used in the embodiment has the advantages of simple structure, small hoisting part size, light weight, capability of ensuring safe construction and simple construction process; various detailed problems of type selection and installation of the transfer equipment do not need to be considered in the hoisting process, so that a scientific, reasonable and economic heat collector hoisting mechanical equipment and installation scheme is obtained in a hydraulic hoisting mode, the construction progress of the light tower is improved, and the construction cost is greatly reduced. The work that can high-efficient reliable completion heat collector from assembling the factory to accurate hoist and fix a position in light tower top can be calculated and control according to operating condition, real-time adjustment equipment parameter, and the flexibility ratio is high.

While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

The above embodiments are merely preferred embodiments of the present invention, which are not intended to limit the present invention, and the features of the embodiments that are not mutually inconsistent can be combined with each other. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a heat collector hoist and mount portal which characterized in that includes: the steel strand support is characterized by comprising a flange base (2), supporting legs (3), a hydraulic crane (4), a hydraulic crane operating platform (5), a steel strand guide pipe (6), a steel strand support (7) and connecting pieces, wherein the supporting legs (3) are arranged above the flange base (2), and the hydraulic crane (4), the crane operating platform (5), the steel strand guide pipe (6) and the steel strand support (7) are installed on the supporting legs (3); the flange base (2) comprises a flange base main body (21) and an embedded part (22), and the flange base main body (21) is connected with the embedded part (22) through bolts; the embedded part is an embedded steel plate, a plurality of rigid support legs extend out of the lower end of the embedded steel plate, the support legs need to be embedded in the concrete substrate, and meanwhile, the surface flatness and levelness of the embedded steel plate need to be ensured in the process of installing the flange base; the supporting leg (3) adopts an M-shaped supporting leg to ensure reliable supporting weight, and two supporting legs are respectively arranged at two sides of the supporting leg and are fixedly connected with the flange base (2) through 10.9-grade phi 24 x 120 half-thread bolts and nuts; the hydraulic crane (4) adopts MSR hydraulic crane equipment.

2. The heat collector hoisting portal frame of claim 1, wherein: the hydraulic crane operation platform (5) comprises a platform main body (51), a platform ladder (52), a railing (53) and a platform supporting body (54), wherein an operator can climb on the operation platform through the platform ladder (52) on one side of the platform main body (51), and the platform supporting body (54) is supported below the platform main body (51).

3. The heat collector hoisting portal frame of claim 2, wherein: the platform supporting body (54) is in a long circular arc shape, an arc opening is arranged in the middle of the platform supporting body and serves as a mounting position of a hydraulic crane and a driven steel strand jack, the hydraulic crane is mounted on the platform main body, the platform supporting body (54) is connected with the supporting leg (3) through a 10.9-grade phi 24 x 120 half-screw bolt and a nut, and meanwhile, the platform supporting body is connected with the platform main body (51) through a 10.9-grade phi 24 x 120 half-screw bolt and a nut.

4. The heat collector hoisting portal frame of claim 2, wherein: the platform main body (51) partially extends out of the outer side of the platform supporting body (54) to be installed, and two ends of the platform supporting body (54) are respectively provided with a side plate to increase the supporting strength.

5. The heat collector hoisting portal frame of claim 1, wherein: the utility model discloses a platform support body, including platform support body (54), steel strand wires pipe (6), flexible pipe, steel strand wires pipe (6) whole be funnel-shaped, and upper portion is big-end-up's lower small funnel-shaped rigidity opening, and the lower part is the multistage flexible pipe, and the flexible pipe diameter is the same with rigidity open-ended minimum diameter, and the flexible pipe of top is provided with the connecting piece with platform support body (54), and the position of the flexible pipe of bottom is confirmed according to civil engineering requirement and engineering concrete requirement, the one end parallel and level of the axis of steel strand wires pipe (6) and steel strand wires support (7) carries the steel strand wires for it.

6. The heat collector hoisting portal frame of claim 1, wherein: the steel strand support (7) is arranged on the platform main body (51), a funnel-shaped opening used for conveying the steel strand is arranged opposite to one side opposite to the jack, and the size of the funnel-shaped opening is completely consistent with that of the opening of the steel strand guide pipe (6).

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