CN221295957U - Hierarchical economizer hoist and mount transport platform - Google Patents

Abstract

The utility model relates to a lifting and transporting platform of a grading economizer, which comprises a lower walking bracket, an upper walking bracket and a track beam, wherein the lower walking bracket, the upper walking bracket and the track beam determine a combination path and the number of cooperation according to the size, the transporting path and the weight of the lifting grading economizer, and the walking directions of the upper walking bracket and the lower walking bracket are vertical. The utility model has simple structure, convenient combination and flexible and changeable use modes, can conveniently and efficiently transport equipment under the condition of limited hoisting area, does not deform the equipment, and can reduce multiple risks in actual construction on site by matching with the chain block and the cantilever crane.

Description

Hierarchical economizer hoist and mount transport platform

Technical Field

The utility model relates to the technical field of installation of economizers, in particular to a lifting and transporting platform of a grading economizer.

Background

In the construction process of the utility boiler, the problems of late arrival, process crossing, difficult installation of design positions and the like exist in part of heating surface tube banks and equipment, so that the part of heating surface tube banks (equipment) cannot be installed in place by normal vertical hoisting. For example, a hierarchical economizer designed and manufactured in a boiler plant is provided, the installation part of the hierarchical economizer is the bottom of a denitration reactor, the denitration upper support structure and the header can be installed and completed to be in place on the heating surface tube bank, otherwise, construction safety hazards exist, and immeasurable loss is caused. Specifically, for example, the installation position of the classifying economizer is between 29.789-26.2m at the bottom of the boiler denitration reactor, and the installation construction space is narrow and numerous (168 pipe panels in total). According to the conventional installation sequence, the supporting frame of the denitration reactor is required to be installed in place, then the outlet header of the classifying economizer is hoisted and pre-stored in place, the construction working face does not have a vertical hoisting path from top to bottom due to the unavoidable conditions, the construction process cannot rely on conventional hoisting machinery (flat arm crane) for installation operation, and the cost is too high due to the fact that a plurality of hoisting machines and manpower are used for carrying out the transportation, time and labor are wasted, double waste of personnel and machinery is caused, the construction period is prolonged, and unnecessary waste is caused.

Disclosure of utility model

The utility model aims to solve the problems of time and labor waste, construction period prolonging and the like in the actual conditions of conflict in working procedures, untimely equipment arrival, unsmooth hoisting passage and the like in the traditional hoisting process of the hierarchical economizer, and provides a hoisting and transporting platform of the hierarchical economizer.

The utility model adopts the following technical scheme to realize the aim:

the lifting and transporting platform of the hierarchical coal economizer comprises a lower walking bracket, an upper walking bracket and a track beam, wherein the combination mode of the lifting and transporting platform comprises the combination of the track beam and the lower walking bracket, the combination of the track beam and the upper walking bracket, the combination of the track beam and the lower walking bracket and the upper walking bracket, the combination of the track beam and the double-layer lower walking bracket, and the combination of the upper walking bracket and the lower walking bracket are vertical to each other in the walking direction;

The lower walking bracket comprises four first walking wheels, four supporting legs, four cross beams, two first reinforcing beams, two first slideway beams and a second reinforcing beam, wherein the four first walking wheels are in rectangular distribution, the supporting legs are arranged on the first walking wheels, the cross beams are respectively arranged at the tops of two opposite supporting leg surfaces on each side, the first reinforcing beams are respectively arranged at the tops of the outer wall of the two supporting legs on the opposite sides, the first slideway beams are respectively arranged at the tops of the cross beams only by the first reinforcing beams, and the first reinforcing beams are arranged between the opposite surfaces of the two first slideway beams;

The upper walking bracket comprises four second walking wheels, two second slideway beams and three third reinforcing beams, the four second walking wheels are in rectangular distribution, the second slideway beams are respectively arranged on the two second walking wheels on two opposite sides, and the third reinforcing beams are uniformly distributed between the opposite surfaces of the two second slideway beams;

And slide rail limit bars are arranged in the track beam, the first slide rail beam and the second slide rail beam.

In particular, a backing plate is arranged between the first travelling wheel and the supporting leg and between the second travelling wheel and the second slideway beam.

In particular, the supporting leg and the second reinforcing beam of the cross beam are I-shaped steel, and the top of the groove on the outer side of the supporting leg is provided with a reinforcing frame.

In particular, the first reinforcing beam and the first slideway beam are channel steel, and the sliding rail limiting strip on the first slideway beam is positioned in the middle of the groove.

In particular, the second slideway beam and the third reinforcing beam are channel steel, and the sliding rail limiting bar on the second slideway beam is positioned in the middle of the groove.

In particular, the track beam is I-steel, and a slide rail limit bar on the track beam is positioned in the middle of the upper groove.

In particular, the vertical section of the slide rail limit strip is triangular.

The beneficial effects of the utility model are as follows:

1. the utility model has simple structure, convenient combination and flexible and changeable use modes, can conveniently and efficiently transport equipment under the condition of limited hoisting area, does not deform the equipment, and can reduce multiple risks in actual construction on site by matching with the chain block and the cantilever crane.

2. According to the utility model, the requirements of the actual field size, the form of combined equipment, combined equipment in different stages and the like can be met, the combined equipment is flexibly arranged, and is freely combined into a required platform form, so that the process connection is greatly improved, personnel and machinery idle caused by the collision of arriving goods and the process are avoided, and more effective time is created for the whole construction progress; meanwhile, the walking bracket can be directly used in the process of carrying out the work of the transportation and the horizontal transportation, so that the labor is greatly saved; after the hoisting of the part is finished, the disassembly and transformation turnover can be carried out, and other batch horizontal transportation can be carried out.

3. After the manufacturing is finished, the utility model can be used as a standard component, can be used for turnover of a plurality of projects, greatly reduces the use of materials, effectively reduces the construction cost and has obvious economic benefit.

Drawings

FIG. 1 is a schematic view of the lower walking bracket of the present utility model;

FIG. 2 is a schematic view of the upper walking support structure of the present utility model;

FIG. 3 is a schematic view of a track beam structure of the present utility model;

FIG. 4 is a schematic illustration of the leg and cross beam connections of the lower walking bracket of the present utility model;

FIG. 5 is a schematic view of the connection of the leg of the lower walking bracket and the first reinforcing beam of the present utility model;

FIG. 6 is a schematic view of the first skid beam position of the lower walking bracket of the present utility model;

in the figure: 1-a lower walking bracket; 11-a first travelling wheel; 12-supporting legs; 13-reinforcing the frame; 14-a cross beam; 15-a first reinforcing beam; 16-a first slideway beam; 17-a second reinforcing beam;

2-upper walking support; 21-a second travelling wheel; 22-a second slideway beam; 23-a third reinforcing beam;

3-track beams;

4-a slide rail limit bar;

the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Detailed Description

Because the installation position of the pi-type boiler tail grading economizer is arranged at the lower part of the denitration steel frame structure (denitration module), the hoisting construction space is narrow, so that the hoisting is in place and the construction is very difficult. In order to solve the problem, the application designs the track beam 3 and the track walking bracket to manufacture the track walking bracket which are matched and coupled with each other according to the requirements of the actual field size, the form of combined equipment, combined equipment in different stages and the like, combines the track walking bracket at the corresponding position to form a transporting platform, and uses the platform to realize the transporting, positioning and mounting of the power station boiler graded economizer in a narrow space.

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

As shown in fig. 1-3, a lifting and transporting platform of a hierarchical coal economizer comprises a lower walking bracket 1, an upper walking bracket 2 and a track beam 3, wherein the lower walking bracket 1, the upper walking bracket 2 and the track beam 3 determine a combined path and the number of cooperation according to the size, the transporting path and the weight of the lifted hierarchical coal economizer, and the walking directions of the upper walking bracket 2 and the lower walking bracket 1 are vertical; according to the requirements of the heating surface tube bank form, the combination requirements of different stages and the like, the arrangement direction and the platform size of the platform can be freely changed, and the heating surface equipment with different sizes and different hoisting paths can be hoisted; the utility model can flexibly move, disassemble and assemble under the condition of narrow space and limited hoisting channel, and has the characteristics of high assembling speed, convenient use, high field utilization rate, high turnover, economy and the like.

As shown in fig. 1, 4-6, the lower walking bracket 1 includes four first walking wheels 11, four legs 12, four cross beams 14, two first reinforcing beams 15, two first slide beams 16, and one second reinforcing beam 17;

The four first travelling wheels 11 are in rectangular distribution, the supporting legs 12 are arranged on the first travelling wheels 11, the cross beams 14 are respectively arranged at the tops of the opposite surfaces of the two supporting legs 12 on each side, the first reinforcing beams 15 are respectively arranged at the tops of the outer walls of the two supporting legs 12 on the opposite sides, the first slideway beams 16 are respectively arranged at the tops of the cross beams 14 only by the first reinforcing beams 15, the first reinforcing beams 17 are arranged between the opposite surfaces of the two first slideway beams 16, a base plate is arranged between the first travelling wheels 11 and the supporting legs 12, the first slideway beams 16 are internally provided with slide rail limiting strips 4, and the vertical cross sections of the slide rail limiting strips 4 are triangular;

The landing leg 12 and the second reinforcing beam 17 of the cross beam 14 are both I-shaped steel, the reinforcing frame 13 is arranged at the top of the groove on the outer side of the landing leg 12, the first reinforcing beam 15 and the first slideway beam 16 are both channel steel, and the sliding rail limiting strip 4 on the first slideway beam 16 is positioned in the middle of the groove.

As shown in fig. 2, the upper walking bracket 2 includes four second walking wheels 21, two second slide rails 22, and three third reinforcing beams 23;

The four second travelling wheels 21 are in rectangular distribution, the second slideway beams 22 are respectively arranged on the two second travelling wheels 21 on two opposite sides, the third reinforcing beams 23 are uniformly distributed between the opposite surfaces of the two second slideway beams 22, a backing plate is arranged between the second travelling wheels 21 and the second slideway beams 22, the slideway beams 22 are internally provided with slide rail limiting strips 4, and the vertical sections of the slide rail limiting strips 4 are triangular;

The second slideway beam 22 and the third reinforcing beam 23 are channel steel, and the sliding rail limiting strip 4 on the second slideway beam 22 is positioned in the middle of the groove.

As shown in fig. 3, a rail limiting bar 4 is arranged in the rail beam 3, the rail beam 3 is i-steel, the rail limiting bar 4 on the rail beam 3 is positioned in the middle of the upper groove, and the vertical section of the rail limiting bar 4 is triangular.

The first traveling wheel 11 and the second traveling wheel 21 are both finished standard workpieces. After the lower walking bracket 1, the upper walking bracket 2 and the track beam 3 are manufactured, the lower walking bracket can be used as standard components and can be used for turnover of a plurality of projects, so that the use of materials is greatly reduced, the construction cost is effectively reduced, and the economic benefit is remarkable.

The assembly steps of the transport platform are as follows:

Firstly, determining a steel structure platform with stable structure according to equipment installation elevation, and then determining the length, width and direction of a shipping platform according to equipment form and size;

Step two, determining a combination path of a platform and the matching number of the upper walking bracket 2 and the lower walking bracket 1 according to the size, the transportation path and the weight of the hoisting equipment, and then carrying out combination welding; the track beam 3 is welded on a stable steel structure, then the lower walking bracket 1 is in place, the upper walking bracket 2 is additionally arranged if necessary, and the upper walking bracket 2 is perpendicular to the walking direction of the lower walking bracket 1;

The specific combination mode is as follows:

(1) The track beam 3 is combined with the lower walking bracket 1; the method is used when the positions (vertical directions) of the rooting beams and the grading economizer in-situ structures are far in the parts with large vertical space or the track beams 3;

(2) The track beam 3 is combined with the upper walking bracket 2; aiming at the situation that the position of the vertical space is insufficient or the position (vertical direction) of the rooting beam of the track beam 3 and the position structure of the classifying coal economizer are close;

(3) The track beam 3 is combined with the lower walking bracket 1 and the upper walking bracket 2; aiming at the position with larger vertical space or the position (vertical direction) of the rooting beam and the grading economizer in the position structure of the track beam 3, the transfer path is used when not only has displacement in the left-right direction but also has displacement in the front-back direction; in specific implementation, the track beam 3 is firstly installed in place, then the lower walking bracket 1 is installed in place (at this time, the lower walking bracket 1 should be lengthened along the walking vertical direction thereof, namely, the second slideway beam 22 of the upper walking bracket 2 should be vertical to the walking direction of the roller), after debugging, the upper walking bracket 2 is located on the first slideway beam 16 of the lower walking bracket 1, and then corresponding debugging is carried out;

(4) The track beam 3 is combined with the double-layer lower walking bracket 1; the device is used for the position of insufficient vertical space or the position (vertical direction) of a rooting beam of the track beam 3 and the position structure of the classifying coal economizer, and the delivery path has displacement in the left-right direction and also has displacement in the front-back direction. The implementation is similar to (3);

step three, rechecking the size and direction of the platform, welding joints and the like, and additionally installing a stop at the end part of the travelling direction of the travelling wheel to check whether the travelling wheel is firm and reliable;

and fourthly, in the use process, the size and the form of the platform are reasonably adjusted according to specific use requirements, and the use efficiency of the platform is effectively improved.

Along with the popularization and popularization of large pressure, heat efficiency improvement, energy conservation and emission reduction in the thermal power industry, particularly the gradual improvement and development of a waste heat utilization system and a urea pyrolysis system in a boiler, the number of tube rows in the boiler is increased and the uncertainty of installation positions is greatly increased, the service time of a main hoisting machine in the boiler installation process is greatly prolonged, the hoisting capacity of the main hoisting machine can be limited even under the condition of a compact arranged furnace type, and the popularization and the application of the application can greatly improve the conditions.

The construction process comprises the following steps: the utility model has simple structure, convenient combination and flexible and changeable use modes, can conveniently and efficiently transport equipment under the condition of limited hoisting area, can not generate equipment deformation, and can reduce multiple risks in actual construction on site by matching with the chain block and the cantilever crane.

Safety control aspect: the utility model reduces the construction difficulty and the safety risk of the high-altitude operation.

The aspect of the construction period is as follows: the utility model is matched with a main hoisting machine to hoist the pi type boiler steel grading economizer, reduces the service time of a large crane, shortens the service period, reduces the mechanical energy consumption, and provides a very beneficial method and experience for the heat-receiving surface tube rows which are more in installation quantity and are arranged in a concentrated way of the power station boiler in the future.

In terms of construction economy: the application is used for hoisting the pi-type boiler hierarchical economizer of the 350MW unit, one boiler can save 16.8 (84 groups multiplied by 2 hours/10) of mechanical shifts of a D1100-32t tower crane, and the mechanical shift is 201600 yuan; 168 workers, about 300 workers/hour, and 50400 yuan of labor cost is saved; the tower type boiler can reduce the construction cost by 25.2 ten thousand per yuan, and has better economic benefit.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is intended to cover various modifications, either made by the method concepts and technical solutions of the utility model, or applied directly to other applications without modification, within the scope of the utility model.

Claims (7)

1. The utility model provides a hierarchical economizer hoist and mount transport platform, its characterized in that includes lower part walking support (1), upper portion walking support (2) and track roof beam (3), and transport platform's combination mode includes track roof beam (3) and lower part walking support (1) combination, track roof beam (3) and upper portion walking support (2) combination, track roof beam (3) and lower part walking support (1) and upper portion walking support (2) combination, track roof beam (3) and double-deck lower part walking support (1) combination, and the walking direction of upper portion walking support (2) and lower part walking support (1) is perpendicular;

The lower walking bracket (1) comprises four first walking wheels (11), four supporting legs (12), four cross beams (14), two first reinforcing beams (15), two first slideway beams (16) and one second reinforcing beam (17), wherein the four first walking wheels (11) are in rectangular distribution, the supporting legs (12) are arranged on the first walking wheels (11), the cross beams (14) are respectively arranged at the tops of opposite surfaces of the two supporting legs (12) on each side, the first reinforcing beams (15) are respectively arranged at the tops of the outer walls of the two supporting legs (12) on the opposite sides, the first slideway beams (16) are respectively arranged at the tops of the cross beams (14) only by the first reinforcing beams (15), and the second reinforcing beams (17) are arranged in the middle of the opposite surfaces of the two first slideway beams (16);

The upper walking bracket (2) comprises four second walking wheels (21), two second slideway beams (22) and three third reinforcing beams (23), wherein the four second walking wheels (21) are in rectangular distribution, the second slideway beams (22) are respectively arranged on the two second walking wheels (21) on two opposite sides, and the third reinforcing beams (23) are uniformly distributed between the opposite surfaces of the two second slideway beams (22);

And slide rail limit strips (4) are arranged in the track beam (3), the first slide rail beam (16) and the second slide rail beam (22).

2. A lifting and transporting platform for a hierarchical coal economizer according to claim 1, characterized in that a backing plate is arranged between the first travelling wheel (11) and the supporting leg (12) and between the second travelling wheel (21) and the second slideway beam (22).

3. The lifting and transporting platform of the hierarchical coal economizer according to claim 2, wherein the supporting legs (12) and the second reinforcing beams (17) of the cross beams (14) are all I-shaped steel, and reinforcing frames (13) are arranged at the tops of the grooves on the outer sides of the supporting legs (12).

4. A lifting and transporting platform for a hierarchical coal economizer according to claim 3, characterized in that the first reinforcing beam (15) and the first slideway beam (16) are both channel steel, and the sliding rail limit bar (4) on the first slideway beam (16) is positioned in the middle of the groove.

5. The hoisting and transporting platform of the hierarchical coal economizer according to claim 4, characterized in that the second slideway beam (22) and the third reinforcing beam (23) are both channel steel, and the sliding rail limit bar (4) on the second slideway beam (22) is positioned in the middle of the groove.

6. The hoisting and transporting platform of the hierarchical coal economizer according to claim 5, wherein the track beam (3) is I-steel, and the slide rail limit bar (4) on the track beam (3) is positioned in the middle of the upper groove.

7. The hoisting and transporting platform of the hierarchical coal economizer of claim 6, wherein the vertical section of the sliding rail limiting strip (4) is triangular.