CN214989857U - Hoisting system for installing high-position arrangement equipment - Google Patents

Abstract

The utility model belongs to the technical field of the hoist and mount of equipment is arranged to the high position, concretely relates to hoist and mount system for installing equipment is arranged to the high position. The hoisting system comprises a crane system, a consignment system and a hoisting system, wherein the crane system comprises a large-tonnage crane and a small-tonnage crane, the large-tonnage crane is arranged outside the plant and is not opposite to the direction of the installation position, the small-tonnage crane is arranged outside the plant and is opposite to the direction of the installation position, a certain distance is reserved between the small-tonnage crane and the plant, the consignment system comprises a hauling track, the hauling track is horizontally arranged, one end of the hauling track is positioned below the installation position in the plant, the other end of the hauling track extends to the wall of the plant near the crane system, the hoisting system comprises a hoisting machine and a pulley block, and the pulley block comprises a supporting pulley block and a hoisting pulley block. The utility model discloses hoist and mount to high-order arrangement system is safe, reliable to rationality, feasibility have.

Description

Hoisting system for installing high-position arrangement equipment

Technical Field

The utility model belongs to the technical field of the hoist and mount of equipment is arranged to the high position, concretely relates to hoist and mount system for installing equipment is arranged to the high position.

Background

In recent years, with the development of the state of the art of thermal power generation, ultra supercritical technology has been widely used. The steam turbine generator unit is gradually changed from the original low-position arrangement to the high-position arrangement, the height of an operation platform of the steam turbine generator unit is increased from the conventional high position to the conventional high position, the installation height of a steam turbine steam exhaust device is also increased to the high position, for example, the installation height of the steam turbine steam exhaust device is required to be more than 40m, the installation difficulty of the steam turbine steam exhaust device is invisibly increased, and a specific hoisting system and method aiming at the high-position arrangement equipment do not exist at present.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a hoist and mount system for installing high-order equipment of arranging provides a safe, effectual hoist and mount method for the high-order installation of main equipment.

The utility model is realized in such a way, the hoisting system for installing the high-position arrangement equipment is provided, which comprises a crane system, a consignment system and a hoisting system, wherein the crane system comprises a large-tonnage crane and a small-tonnage crane, the large-tonnage crane is arranged outside the plant and is not opposite to the installation position, the small-tonnage crane is arranged outside the plant and is opposite to the installation position, and a certain distance is reserved between the small-tonnage crane and the factory building, the hauling system comprises a hauling rail, the hauling rail is horizontally arranged, one end of the hauling rail is positioned above the mounting position in the factory building, the other end of the hauling rail extends to the wall of the factory building close to the crane system, the hoisting system comprises a hoisting machine and a pulley block, the pulley block comprises a supporting pulley block and a hoisting pulley block, the supporting pulley block is fixedly arranged at the outer side of one end of the hauling rail, which is far away from the crane system, and a steel wire rope on the hoisting machine penetrates through the supporting pulley block and is sleeved on the hoisting pulley block.

Preferably, two groups of steel wire ropes are arranged on the lifting hook of the small-tonnage crane, and four groups of steel wire ropes are arranged on the lifting hook of the large-tonnage crane.

Further preferably, the hauling track comprises two guide rails and a connecting rod connected between the two guide rails, the two guide rails are respectively and fixedly arranged above a civil engineering beam of a factory building, and a guide groove is formed in each upper end of the two guide rails.

Preferably, the consignment system further comprises a weight mover, the weight mover is movably arranged in the guide groove in the guide rail and comprises a connecting frame and a crawler-type advancing wheel arranged on the inner side of the connecting frame, and a stop block is fixedly arranged at the front end above the connecting frame.

Further preferably, in the hoisting system for installing the high-position arrangement equipment, the high-position arrangement equipment is a high-position arrangement steam turbine steam exhaust device.

Preferably, the large-tonnage crane is a 450t crawler crane, and the small-tonnage crane is a 260t crawler crane.

The method for arranging the equipment at the high position by using the hoisting system for installing the equipment at the high position comprises the following steps: for the small-tonnage component, the small-tonnage component is hoisted to the hauling track by using the small-tonnage crane, and a steel wire rope on the hoist penetrates through the supporting pulley block and then is connected with the small-tonnage component through the hoisting pulley block to be hauled to an installation position;

for a large-tonnage part, hoisting is carried out according to the following method:

1) firstly, respectively connecting a plurality of groups of steel wire ropes on the large-tonnage crane hook to different positions outside a large-tonnage part, and connecting the steel wire ropes on the small-tonnage crane hook to the tail part of the large-tonnage part;

2) in the lifting and hoisting process, a large-tonnage crane bears the force, the large-tonnage part is hoisted to the position, where the lower end of the large-tonnage part is higher than a hauling track, and then the large-tonnage crane horizontally moves the large-tonnage part until one end of the large-tonnage part is placed on the hauling track;

3) the steel wire rope of the large-tonnage crane is moved away from the large-tonnage part, the small-tonnage crane starts to bear the force, the winch penetrates through the steel wire rope of the supporting pulley block and is connected with the large-tonnage part through the winch pulley block, the large-tonnage part is transported to an installation position by using a method of tail hoisting and front end traction consignment, then the steel wire rope of the small-tonnage crane is moved away from the large-tonnage part, and the steel wire rope of the winch is moved away.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a hoist and mount system and hoist and mount method to the hoist and mount of high-order arrangement system, safe, reliable to rationality, feasibility have. In the similar engineering, the system and the method have high popularization value.

Drawings

Fig. 1 is a plan view of an arrangement structure of a hoisting system provided by the present invention;

FIG. 2 is a schematic view of a connecting structure of a hauling track and a weight mover;

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a schematic view of a weight mover;

FIG. 5 is a schematic view of the connection relationship between four sets of steel wire ropes and large-tonnage components of a large-tonnage crane;

FIG. 6 is a view of one end of a large tonnage piece placed on a haul rail;

FIG. 7 is a schematic view showing the connection relationship between the wire rope of the small-tonnage crane and the large-tonnage member when one end of the large-tonnage member is placed on the haul rail;

FIG. 8 is a high level layout view of a steam turbine exhaust;

fig. 9 is a side view of fig. 8.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Examples

Utilize the utility model provides a system carries out the hoist and mount installation of high position arrangement steam turbine steam extraction device (steam turbine steam extraction device in this embodiment is produced from haerbin steam turbine plant finite responsibility company, and the relevant attached drawing that appears in this embodiment only is the explanation the utility model provides a hoist and mount system and hoist and mount method), steam turbine steam extraction device are under the steam turbine low pressure jar, and steam extraction device constant force spring support is located 43m layers, and steam extraction device top and low pressure outer cylinder are rigid connection. The lower part of the steam exhaust device is supported by a constant force spring. Referring to fig. 8 and 9, the steam exhaust device mainly comprises a reducer section of the steam exhaust device, No. 8&9 low-pressure heaters, a temperature and pressure reducer, a connecting section of the steam exhaust device, a steam extraction pipe group, a compensation joint, an anti-scouring cover, a curved pipe pressure balance type compensator, a constant force spring support and other main components.

The reducing section is a transition section from the steam exhaust of the steam turbine to the steam exhaust runner. No. 8&9 low-pressure heaters pass through a small cylinder in the connecting section of the steam exhaust device and are fixed on a platform foundation outside the steam exhaust device. The temperature and pressure reducing device is arranged on two sides of the No. 8&9 low-pressure heater. The connecting section is in a vertical cylindrical shape, is internally designed with a transverse small cylindrical structure, and is connected with the curved tube pressure balance type compensator. The curved pipe pressure balance type compensator guides the downward flowing low-pressure cylinder exhaust steam to be led out horizontally. And plays a role in compensating for thermal displacement and medium thrust. A guide support, four dampers and four constant force spring supports are arranged below the damper.

The method specifically comprises the following steps: preparing before foundation acceptance and installation → installing a reducer section of the steam exhaust device → installing a low-pressure heater → installing a connecting section of the steam exhaust device → installing a curved pipe pressure balance type compensator → installing a constant-force spring support → welding the connecting section of the curved pipe pressure balance type compensator and the steam exhaust device → welding the connecting section of the steam exhaust device and the reducer section of the steam exhaust device → assembling the steam exhaust pipe group and a compensation joint → connecting the reducer section of the steam exhaust device and a low-pressure cylinder of the steam turbine → welding the throat part of the low-pressure cylinder of the steam turbine → releasing the constant-force spring.

First, basic acceptance and preparation before installation

And (3) basic acceptance inspection:

and (4) delivering and installing the civil engineering foundation, checking the longitudinal and transverse center lines and the elevation of the foundation according to the equipment plane layout, and checking whether the civil engineering embedded part is lost or not and whether the size position and the elevation meet the construction requirement or not.

Preparation before installation:

1) hoisting the modules according to a pre-designed hoisting position, and hoisting the bulk steel plates and other stress points as balanced as possible so as to avoid deformation;

2) transportation reinforcement is carried out in the transportation process of each module, and transportation reinforcing ribs are removed after the on-site hoisting combination is installed so as to prevent the modules in the processes of hoisting and the like from deforming;

3) when part of the load of the steam exhaust device is loaded on the low pressure cylinder and the reducer section, the connecting section and the bent pipe pressure balance type compensator are installed, the steam exhaust device must be hung on a beam or a steam turbine platform with proper periphery, and the whole load cannot be borne on the foundation.

Second, install the reducer section of the steam exhaust system

The reducer section of the steam exhaust device is mainly divided into two modules, and each module weighs about 15.18 tons. After the two modules are manufactured, the two modules are combined and assembled, a permanent assembly boundary mark is made, and the two modules are assembled into a whole according to the mark on site. The two modules are reinforced in transportation, and reinforcing ribs for reinforcing transportation on the modules are removed after the two modules are integrally welded on site.

In a hoisting site, two groups of steel wire ropes of a 260t crawler crane 2 are connected with a variable-diameter section 7 of the steam exhaust device, the variable-diameter section 7 of the steam exhaust device is hoisted to the end part of a hauling track 3, then the 260t crawler crane 2 is removed, a steel wire rope which penetrates through a supporting pulley block 501 on a winch 4 is connected with the variable-diameter section 7 of the steam exhaust device through a winch pulley block 502, the variable-diameter section 7 of the steam exhaust device is hauled to be pre-stored under a low-pressure cylinder, and all external welding seams are used for performing a kerosene leakage test.

Thirdly, installing a low-pressure heater

In the process of installing the low-pressure heater 8, the low-pressure heater 8 penetrates from the row A to the row B of the main workshop, the low-pressure heater 8 is hoisted and placed on the hauling track 3 by using a 260t crawler crane 2, the low-pressure heater 8 is hauled to an installation position by using a winch 4, wherein the main workshop 4-5 shaft is required to be reserved when a layer with the elevation of 43-65 meters is closed, air cooling fan equipment between No. 1-3 pillars is required to be reserved, and the positions of all interfaces of the low-pressure heater 8 are adjusted after the low-pressure heater 8 is hoisted to the corresponding position;

fourthly, installing the connecting section of the steam exhaust device

And hoisting and installing the connecting section 9 of the steam exhaust device below the reducer section 7 of the steam exhaust device by using a 260t crawler crane 2, a hauling track 3 and a winch 4, and assembling and welding the connecting section with the low-pressure heater 8 which is adjusted in place.

Pressure balance type compensator with bent pipe

The curved pipe pressure balance compensator 10 comprises a balance end structural assembly, a three-way assembly 1001, a middle connecting pipe assembly, a working end assembly, a spring support pipe structural assembly, a large pull rod assembly and a metal corrugated expansion joint, and referring to fig. 1, 2, 3, 4, 5, 6 and 7, a specific method for installing the curved pipe pressure balance compensator is as follows:

1) prestoring a balance end structural component, a spring support pipe part structural component and a metal corrugated expansion joint to an installation position by respectively using a 260t crawler crane 2, a matched winch 4 and a travelling crane (matched with erecting a transversely transported part at the installation position);

2) unloading the three-way assembly 1001 outside a row of a factory building A by using a 450t crawler crane 1, connecting four groups of steel wire ropes of the 450t crawler crane 1 to the outer side of the three-way assembly 1001 according to the penetrating and installing direction of the three-way assembly 1001, integrally hoisting the three-way assembly 1001, and hanging two groups of steel wire ropes of a 260t crawler crane 2 at the tail part of the three-way assembly 1001 but not carrying the steel wire ropes;

3) when the three-way assembly 1001 is hoisted for 100mm, checking hoisting tools, a crane and equipment, confirming that formal hoisting is performed safely, and slowly hoisting when a worker is far away from the equipment in the hoisting process;

4) when the hoisting height of the 450t crawler crane 1 exceeds the height of the hauling track 3, the 260t crawler crane 2 continues to follow until the first supporting leg of the three-way component 1001 is placed into the hauling track 3, when the hoisting steel wire rope distance of the 450t crawler crane 1 is 200mm from the row A, the 450t crawler crane 2 bears the weight of the 450t crawler crane 1, and the 450t crawler crane 1 is unhooked;

5) connecting a steel wire rope of a 5t winch 4 with a bottom support of the three-way component 1001 through a buckle for traction and dragging, slowly following a 260t crawler crane 2 at the speed of the winch 4, unhooking the 260t crawler crane 2 after all supporting legs of the rear portion of the three-way component 1001 enter a dragging track 3, and then dragging the three-way component 1001 to an installation position through the 5t winch 4;

during the consignment, two sides of the front leg of the tee joint assembly 1001 are placed on the two weight movers 6, two sides of the rear leg are placed on the two weight movers 6, and the crawler-type wheels 602 support the tee joint assembly 1001 to move forwards under the supporting action of the bracket 601 by virtue of the pulling force of the winch 4, so that the tee joint assembly 1001 is prevented from being separated from the weight movers 6 by the stop blocks 603.

6) The middle connecting pipe assembly, the working end assembly, the other set of spring support pipe part structural assembly and the other set of metal corrugated expansion joint are combined and completed outside a factory building A, a 260t crawler crane 2 is used, the 5t winch 4 is matched to prestore to the installation position, and the large pull rod assembly is prestore to the installation position by the 260t crawler crane.

Sixthly, mounting a constant force spring support and welding

The constant force spring support 11 is installed on the basis of the steam exhaust device, then the positions of the steam exhaust device reducing section 7, the steam exhaust device connecting section 9 and the bent pipe pressure balance type compensator 10 are adjusted in place, welding between the bent pipe pressure balance type compensator 10 and the steam exhaust device connecting section 9 and welding between the steam exhaust device connecting section 9 and the steam exhaust device reducing section 7 are carried out in sequence, and then assembling and welding are carried out on a steam extraction pipe group and a compensation joint 12.

Seventhly, the diameter-changing section of the steam exhaust device is connected with a low-pressure cylinder of the steam turbine:

1) in order to ensure that the interface of the steam turbine low pressure cylinder 8 is evenly stressed, the supporting position of a rigid buttress at the bottom 4 of the steam turbine low pressure cylinder 8 is leveled, 4 points with the same distance from a supporting foot to the center are selected, the bottom surface elevation deviation of the steam exhaust device is adjusted by 10mm, and the whole longitudinal and transverse central line deviation of the steam exhaust device is adjusted by 10 mm.

2) The steam exhaust device is supported by a temporary hydraulic jack, the steam exhaust device is adjusted to enable the gap between the reducing section and the steam exhaust port of the low-pressure cylinder to be 2-3mm and to be aligned, the position with local out-of-tolerance can be subjected to a build-up welding mode, and the gap between the steam exhaust device and the interface of the low-pressure cylinder is guaranteed to be 2-3 mm.

3) Before welding, the hydraulic jack is stressed, and the inclined sizing block on the rigid buttress is only used as an auxiliary support.

4) After each layer of welding bead is welded, the round-head hammer is used for knocking slag immediately, and then the small hammer or the electric hammering tool is used for knocking weld metal evenly, so that plastic extension deformation is generated, and local tensile stress borne by the cooled weld is offset.

Eighthly, welding the throat part of the low-pressure cylinder of the steam turbine and releasing the constant-force spring.

In this embodiment, the rails 301 of the hauling track 3 are laid out using HM588 × 300 × 12 × 20 profiled steel with a pitch of 3800 mm. Spot welding of the top surface of a section steel hauling beam [28 channel steel (symmetrical spot welding, the spot welding length is 100mm, the interval is 300mm) to form a moving groove of a weight shifter, a civil engineering cement beam is arranged below the hauling track 3, the maximum interval is 3000mm (the spot welding is used as a limiting track of a 60t weight shifter), reinforcing rib plates (full welding, iron plates delta is 12mm) are butt-welded on the two sides of the guide rail 301 every 500mm, and after the tracks are laid and the elevation is adjusted, connecting rods 302 are used between the two tracks (the steel plates delta is a full welding, and the height of the steel plates is adjusted)

108 × 5 steel pipes) are connected (the ends of the steel pipes are fully welded at intervals of 3 meters), so that the track forms an integral structure and the stability is enhanced; and after the track arrangement is finished, the defects of no air holes, slag inclusion and the like at the welding position are detected.

Verification example and main verification of safety of hoisting process of bent pipe pressure balance type compensator

(1) Double-vehicle lifting calculation and check

When the two-vehicle lifting crane is used, 450t crawler cranes 1 and 260t crawler cranes 2 stand, and the lifting position and the lifting point position are shown in FIG. 1.

When the three-way component 1001 is hoisted by the 450t crawler crane 1, 4 points of 8 strands of ropes are stressed, and the gravity centers of hoisting points and the three-way component 1001 are respectively as follows: 4800mm and 5800mm, the maximum stress of a single point is respectively: the GA-GB-64.78/2-32.39 t, GC-GD-53.62 t, 2 strands of rope per suspension point, and the maximum force F1-16.2 t per strand of rope, as shown in fig. 3.

The single length of the steel wire rope: 33m, steel wire rope stress: f16.2/cos 51.3 °, F26.1 × 9.8 255.78 KN. The steel wire rope with the tensile strength of 6 x 37+ FC (fiber core) of phi 56 and 1770Mpa has the minimum breaking force of 1830KN, so that the safety factor of the steel wire rope is 1830/255.78 which is 7.15 times, and the steel wire rope can be safely selected.

When the 450t crawler crane 1 main arm works under the working condition of 72m, the maximum radius of 22m to 30m all meets the hoisting requirement, the load is 225t to 154t, the weight of the hook is 7.3t, the weight of the steel wire rope is 1t, and the maximum load rate of the 450t crawler crane is 82.27 percent (118.4+7.3+ 1)/154.

When the 450t crawler crane 1 slowly rotates the rod to move towards the main workshop direction, the 260t crawler crane 2 always keeps unstressed following until the front support leg of the three-way component 1001 falls on a weight mover prearranged on the hauling track 3, and the 450t crawler crane 1 is 200mm away from the A-column wall, the 450t crawler crane 1 is removed; at this time, the 260t crawler crane 2 is stressed and is continuously dragged by using the 5t winch 4, and the traveling speed of the 260t crawler crane 2 is kept synchronous with that of the 5t winch 4 and within the working radius range, as shown in fig. 4.

When the three-way assembly 1001 is hoisted, the maximum height of the center is 43+0.6+0.18+ 4.6-48.38 m from the platform + the hauling beam + the weight shifter + the steam exhaust device center to the support; the vertical height of the steel wire rope is 7.055m, so that the minimum relative elevation of the hook is 48.38+ 7.055-55.435 m; the maximum lifting height of a main arm 72m of the 450t crawler crane 1 is 68.55m when the operation radius is 22m, and the lifting requirement is met; when the towing elevation 48.38m is reached, the distance from the center of the tee joint component 1001 to the center of the main arm is 6.475m, the width of the main arm is 2.2m, and the safety distance is as follows: 6.475-1.1-4.6 is 0.775m, which meets the hoisting requirement; when the hook reaches 55.435m, the safe distance from the hook to the head is as follows: 68.55-55.435 is 13.115m, safe and reliable.

(2) Calculation and check for lifting of bicycle

After the 450t crawler crane 1 is withdrawn, the 260t crawler crane 2 lifts and hoists the rear side of the three-way component 1001, and the stress of the 260t crawler crane 2 is 53.62 t; 260t of crawler crane 2 main arm 68m, working radius 12m, load 64.8t, hook weight 2.3t, phi 46 steel wire rope with tensile strength of 6 x 37+ FC (fiber core) of 1770Mpa with minimum breaking tension of 1240KN, weight of 0.4t steel wire rope, and load rate of the crawler crane of 260t of 56.32/64.8 of 86.9%.

2 hoisting points of the crawler crane at 260t, 4 strands of ropes are stressed, and F is 53.62/4 cos21.82 is 14.45 t; the minimum breaking force of a steel wire rope with the tensile strength of 1770Mpa of 6 multiplied by 37 plus FC (fiber core) of phi 46 and the length of 23 meters is 1240KN, and the safety coefficient of the steel wire rope is as follows: 1240/(14.45 × 9.8) ═ 8.75 times, can be selected safely.

When the working radius of the main arm of the 260t crawler crane 2 is 12m under the working condition of 68m, the vertical lifting height is 66.9 m; the steel wire rope vertical height 10.675m, the hoisting height satisfies the hoist and mount requirement, and when reaching haul elevation 48.38m, main arm width is 2m, and steam extraction device center is 3.32m to main arm center distance, and safe distance is: 3.32-1-1.15 ═ 1.17m, meet the hoisting requirement; when the hook reaches 55.435m, the safe distance from the hook to the head is as follows: 66.9-55.435 ═ 11.465m, and is safe and reliable.

(3) Calculation and check of hoister

Hoist 4 and wire rope: the weight of the three-way component 1001 is 118.4t, 2 pulley blocks with 3-332 t are adopted, 6 strands of ropes are stressed, and the tensile force of the outgoing ropes is obtained (E is 1.04, n is the number n of steel ropes is 6, and the starting coefficient u of the three-way component is 0.15):

S＝F×u×En-1×(E-1)/(En-1)＝118.4×0.15×0.04×1.045/(1.046-1)＝3.26t

selecting 5t winch 4, wire rope diameter 22mm, looking up table to obtain nominal tensile strength of 1770MPa

The minimum breaking tension of the 6 × 37+ FC (fiber core) steel wire rope is 283KN, and the safety factor of the steel wire rope is 283/(3.26 × 9.8) ═ 8.85 times, so that the steel wire rope is safe and can be selected.

(4) Haul track calculation and verification

The maximum distance between 4-5 shaft foundation beams between rows A-B of the main workshop is 3m, and the rest is 2.6 m.

The hauling track is made of 2 x HM588 x 300 x 12 x 20H-shaped steel, the three-way assembly is hauled in place by using 4 weight transporters with 60t according to the maximum span of 3m, and the single-point stress is as follows: 118.4/4 ═ 29.6t, then the maximum bending moment of the steel beam:

Mmax＝PL/4＝29.6×1000×3×100/4＝2220000kg.cm

table look-up shows HM 588X 300X 12X 20 section steel bending resistance Wx 4020cm3

Calculating the maximum stress of the steel beam: sigma max Mmax/Wx 552kg/cm2 55.2MPa

The steel beam is standard H-shaped steel, and the allowable stress of the material can be taken as follows: [ sigma ] ═ 200MPa, sigma max < [ sigma ], safe and optional.

Claims (6)

1. A hoisting system for installing high-position arrangement equipment is characterized by comprising a crane system, a consignment system and a hoisting system, wherein the crane system comprises a large-tonnage crane (1) and a small-tonnage crane (2), the large-tonnage crane (1) is arranged on the outer side of a plant and is not opposite to the direction of an installation position, the small-tonnage crane (2) is arranged on the outer side of the plant and is opposite to the direction of the installation position, a certain distance is reserved between the small-tonnage crane (2) and the plant, the consignment system comprises a hauling track (3), the hauling track (3) is horizontally arranged, one end of the hauling track is positioned above the installation position in the plant, the other end of the hauling track extends to a wall of the plant close to the crane system, the hoisting system comprises a hoisting machine (4) and a pulley block (5), the pulley block (5) comprises a supporting pulley block (501) and a hoisting pulley block (502), the supporting pulley block (501) is fixedly arranged on the outer side of the hauling track (3) far away from the crane system, a steel wire rope on the winch (4) penetrates through the supporting pulley block (501) and is sleeved on the winch pulley block (502).

2. The hoist system for installing high-position layout equipment according to claim 1, wherein two sets of wire ropes are provided on the hook of the small-tonnage crane (2), and four sets of wire ropes are provided on the hook of the large-tonnage crane (1).

3. The hoisting system for installing high-level layout equipment according to claim 1, wherein the hauling rail (3) comprises two guide rails (301) and a connecting rod (302) connected between the two guide rails (301), the two guide rails (301) are respectively and fixedly arranged above the civil beam of the factory building, and each upper end of the two guide rails (301) is provided with a guide groove.

4. The hoist system for installing high-position layout equipment according to claim 3, characterized in that the consignment system further comprises a weight mover (6), the weight mover (6) is movably disposed in a guide groove on the guide rail (301), the weight mover (6) comprises a connecting frame (601) and a track-type advancing wheel (602) disposed inside the connecting frame (601), and a stopper (603) is fixedly disposed at the upper front end of the connecting frame (601).

5. The hoist system for installing highly arranged equipment according to claim 1, wherein in the hoist system for installing highly arranged equipment, the highly arranged equipment is a highly arranged steam turbine exhaust.

6. The hoist system for installing a high-level layout apparatus according to claim 1, wherein the large-tonnage crane (1) is a 450t crawler crane and the small-tonnage crane (2) is a 260t crawler crane.

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