Gas turbine fan hoisting device
By designing a gas turbine fan hoisting device and utilizing a slide rail, slide plate, and pulley structure, the difficulty of hoisting the fan of the LM6000 gas turbine generator set was solved, achieving safe and efficient hoisting operations and reducing labor requirements.
Patent Information
- Application Number
- CN202422696898.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-06
AI Technical Summary
The fan of the LM6000 gas turbine generator set is difficult to hoist, especially in a small space and without special tools, which makes the hoisting operation dangerous, inefficient and difficult.
A gas turbine fan hoisting device was designed, which included a main board, slide rails, slide plates, rotating shafts and pulley structures. The fan could be flexibly hoisted by sliding and rotating the lifting points, and the hoisting direction was controlled by multi-point hoisting and traction blocks.
It improves the safety and efficiency of wind turbine hoisting, reduces the amount of labor, fills the gap of lack of special tools, and provides convenient maintenance conditions.
Smart Images
Figure CN223357243U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of LM6000 type unit tooling, in particular to a gas turbine fan hoisting device. Background Art
[0002] The LM6000 unit is derived from the General Electric (GE) CF6-80C_2 jet engine, widely used in civil aircraft such as the Boeing 747, McDonnell Douglas MD-11, and Airbus A300 and A310. The LM6000 unit is a dual-shaft, cold-end driven gas turbine. When operating at 60 rpm, it can be directly connected to the generator. When operating at 50 rpm, a speed reduction device is required to reduce the speed to 3000 rpm. Due to its cold-end drive, the 50-cycle generator unit has a total length of 20.9 meters. Axial exhaust can be conveniently directed to a waste heat boiler system for combined heat and power generation or combined cycle power generation. When operating at 60 rpm in a simple cycle, the LM6000 unit has a heat rate of 9,062 kJ / (kW·h) and an output power of 40,760 kW, making it one of the most efficient and high-performance gas turbine generator sets in the world.
[0003] The ventilation of the gas turbine generator box is achieved by using large fans on both sides. Since the total length of the generator set is 20.9m, the size of the entire gas turbine generator box is very large, and the size and weight of the fans installed on it are also very large. The fans need to be replaced and repaired frequently, which brings many problems:
[0004] 1. The various parts of the gas turbine unit are relatively compact, with only 5cm of movable space above the fan. The lower part of the fan on one side of the box contains the engine oil system and related pipelines, which cannot be hoisted and can only be hoisted from the other side. This makes it extremely difficult to remove the ventilation fan in the engine compartment for inspection and maintenance if it fails.
[0005] 2. Due to limited production site conditions, the commonly used lifting vehicles could not operate normally during the wind turbine hoisting operation. In addition, there was a lack of special tools during the operation, and the equipment manufacturer did not have the corresponding supporting tooling. The hoisting difficulty and labor-intensive work were extremely great.
[0006] 3. In the process of hoisting the fan, the lifting point must be changed constantly. Currently, it is only manually hoisted with a manual hoist (pulley) at multiple lifting points. The operation process is dangerous and the operation efficiency is low. Utility Model Content
[0007] The purpose of the utility model is to solve
[0008] In order to solve the above technical problems, the utility model of the gas turbine fan hoisting device includes:
[0009] A main board, wherein the lower surface of the main board has a first slide rail fixedly connected thereto;
[0010] A first slide plate is parallel to the main board; the first slide plate is located vertically below the main board; the upper surface of the first slide plate has a first slider fixedly connected thereto, the first slider has a slide groove therein, and the first slide rail is slidably mounted in the slide groove of the first slider; the lower surface of the first slide plate has a second slide rail fixedly connected thereto; the second slide rail is at an intersecting angle with the first slide rail;
[0011] A second slide plate, the second slide plate being parallel to the first slide plate; the second slide plate being vertically below the first slide plate; a second slider being fixedly connected to the upper surface of the second slide plate, the second slide plate having a slide groove therein; the second slide rail being slidably mounted in the slide groove of the second slider; the second slide plate being provided with a first connecting hole extending through both upper and lower surfaces;
[0012] A rotating shaft passes through the first connecting hole, and the upper end of the rotating shaft has a fixedly connected first limiting plate, and the first limiting plate is located above the second slide; a pulley is movably connected to the lower side of the rotating shaft.
[0013] As a preferred embodiment of the gas turbine fan hoisting device of the present invention, the rotating shaft is further equipped with a second limit plate that is movably or fixedly connected; the second slide plate is located between the first limit plate and the second limit plate.
[0014] As a preferred embodiment of the gas turbine fan hoisting device of the present invention, there is a movably connected traction block below the rotating shaft, the side of the traction block has at least three traction parts, the traction block has a fixedly connected hanging plate, and the pulley is movably installed on the hanging plate.
[0015] As a preferred embodiment of the gas turbine fan hoisting device of the present invention, each of the traction members has a traction hole.
[0016] As a preferred embodiment of the gas turbine fan hoisting device of the utility model, it includes at least two third slide plates arranged in parallel, and the lower surface of each of the third slide plates is respectively provided with a third sliding block fixedly connected thereto, and the third sliding block has a sliding groove therein;
[0017] The surface of the mainboard is provided with a third slide rail fixedly connected thereto, and the third slide rail is slidably mounted in the slide groove of the third slider;
[0018] A fixed mounting plate is provided above each of the third slide plates, and the mounting plate has a second connecting hole.
[0019] As a preferred embodiment of the gas turbine fan hoisting device of the present invention, the third slide is installed with a threaded fastener, the fastener is at a vertical angle, and the position of the fastener is vertically above the slide groove in the third slide.
[0020] As a preferred embodiment of the gas turbine fan hoisting device of the present invention, both ends of the first slide rail, the second slide rail and the third slide rail are respectively provided with detachable bolts.
[0021] Beneficial effects
[0022] The present invention solves the above existing problems and other existing problems not mentioned above and accordingly brings at least the following innovative advantages:
[0023] The utility model discloses a gas turbine fan lifting device, which has a main board, so that the main board can be installed on the gas turbine generator box when in use, which is convenient for overall fixation; by arranging the main board, the first slide plate and the second slide plate in parallel, and using the first slide rail and the second slide rail at an intersecting angle, the second slide plate can slide to different angles; when the pulley is used to lift the fan, the lifting point can be changed, thereby reducing the amount of manpower.
[0024] The utility model provides a gas turbine fan hoisting device, by providing a traction block movably connected to the rotating shaft, and the pulley is installed on the traction member through a hanging plate, so that the pulley can rotate freely when hoisting the fan.
[0025] The utility model discloses a gas turbine fan hoisting device, which adds three traction parts in different directions on the traction block, wherein the traction hole of each traction part is used to connect a rope. The three ropes connected by the three traction parts in different directions are used to facilitate three different groups of people to control the direction change of the hoisting fan by pulling the ropes connected to different traction holes when hoisting the fan, so that the hoisting point can be changed in real time.
[0026] The utility model provides a gas turbine fan lifting device, which realizes a sliding connection between the third slide and the main board by adding a third slide plate, as well as an added third slider and a third slide rail; during installation, the utility model can be installed on the gas turbine generator box through the second connection hole of the mounting plate; and since the third slide plate and the main board are slidably connected, the distance between the two third slide plates can be adjusted.
[0027] The utility model can change the lifting point in real time, and fills the gap of the existing LM6000 type gas turbine having no supporting lifting and maintenance tools; and realizes the functions of saving labor, increasing safety and convenience. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a three-dimensional effect diagram of the utility model;
[0029] Figure 2 This is a three-dimensional effect diagram of the present invention from another angle;
[0030] Figure 3 This is a front view of the utility model;
[0031] Figure 4 This is a side view of the utility model;
[0032] Figure 5 This is an exploded rendering of the present invention.
[0033] In the figure: 1. main board, 2. first slide rail, 3. first slide plate, 4. first slider, 5. second slide rail, 6. second slide plate, 7. second slider, 8. first connecting hole, 9. rotating shaft, 10. first limiting plate, 11. pulley, 12. second limiting plate, 13. traction block, 14. traction member, 15. traction hole, 16. third slide plate, 17. third slider, 18. third slide rail, 19. mounting plate, 20. second connecting hole, 21. fastener, 22. hanging plate. DETAILED DESCRIPTION
[0034] In order to make the purpose, technical solutions and advantages of the technical solutions of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present disclosure.
[0035] The same reference numerals in the accompanying drawings represent the same components. It should be noted that the embodiments described are only part of the embodiments of the present disclosure, rather than all the embodiments.
[0036] Based on the described embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present disclosure.
[0037] The utility model gas turbine fan hoisting device, such as Figures 1 to 5 As shown, it comprises: a main board 1, the lower surface of the main board 1 has a first slide rail 2 fixedly connected;
[0038] First skateboard 3, Figure 3 and Figure 4 The first slide plate 3 is shown to be parallel to the main board 1 and is located vertically below the main board 1. Figure 5 It is shown that the upper surface of the first slide plate 3 has a first slider 4 fixedly connected thereto, and the first slider 4 has a slide groove therein. Figure 1 and Figure 2 It shows that the first slide rail 2 is slidably installed in the slide groove of the first slider 4; Figure 5The lower surface of the first slide 3 is shown to have a second slide rail 5 fixedly connected thereto; Figures 1 to 5 As shown, the second slide rail 5 and the first slide rail 2 are at an intersection angle;
[0039] Second skateboard 6, Figure 3 and Figure 4 The second slide plate 6 is shown to be parallel to the first slide plate 3 , and the second slide plate 6 is vertically below the first slide plate 3 ; Figure 5 The upper surface of the second slide plate 6 is shown to have a second slider 7 fixedly connected thereto, and a slide groove is provided in the second slide plate 6; Figures 1 to 4 It shows that the second slide rail 5 is slidably installed in the slide groove of the second slider 7; Figure 5 It shows that the second slide plate 6 is provided with a first connecting hole 8 that passes through the upper and lower surfaces;
[0040] Shaft 9, Figure 3 and Figure 4 It is shown that the rotating shaft 9 passes through the first connecting hole 8, and the upper end of the rotating shaft 9 has a fixedly connected first limiting plate 10, and the first limiting plate 10 is above the second slide 6; the lower end of the rotating shaft 9 is movably connected to a pulley 11. Figure 3 and Figure 4 It is shown that the rotating shaft 9 is also equipped with a second limiting plate 12 that is movably connected or fixedly connected; the second slide plate 6 is located between the first limiting plate 10 and the second limiting plate 12.
[0041] The utility model discloses a gas turbine fan hoisting device, through the provision of a main board 1, the main board 1 can be installed on the gas turbine generator box when in use, so as to facilitate the fixation of the whole; by providing the main board 1, the first slide 3 and the second slide 6 in parallel, and utilizing the first slide rail 2 and the second slide rail 5 at an intersecting angle, the second slide 6 can slide to different angles; when the pulley 11 is used to hoist the fan, the lifting point can be changed, thereby reducing the amount of manpower.
[0042] For further information, see Figure 2 、 Figure 3 and Figure 4 As shown in FIG65 , a movable traction block 13 is provided below the rotating shaft 9 , and at least three traction members 14 are provided on the side of the traction block 13 . Figure 2 The three traction members are shown to be located in different directions of the traction block 13 ; the traction block 13 has a fixedly connected hanging plate 22 , and the pulley 11 is movably mounted on the hanging plate 22 .
[0043] The utility model gas turbine fan hoisting device is provided with a traction block 13 movably connected to the rotating shaft 9, and the pulley 11 is installed on the traction member 14 through the hanging plate 22, so that the pulley 11 can rotate freely when hoisting the fan.
[0044] For further information, see Figures 2 to 4 Each of the pulling members 14 has a pulling hole 15. The utility model gas turbine fan hoisting device adds three pulling members 14 in different directions to the pulling block 13, wherein the pulling hole 15 of each pulling member 14 is used to connect a rope. Using three ropes connected to the three pulling members 14 in different directions, three different groups of people can control the direction of the fan hoisting by pulling the ropes connected to the different pulling holes 15 during the fan hoisting, thereby achieving real-time changes in the hoisting point.
[0045] For further information, see Figures 1 to 5 , comprising at least two third slides 16 arranged in parallel, each of the third slides 16 having a third slider 17 fixedly connected to the lower surface thereof, and the third slider 17 having a slide groove therein;
[0046] The surface of the main board 1 has a third slide rail 18 fixedly connected thereto. Figure 3 and Figure 4 It shows that the third slide rail 18 is slidably installed in the slide groove of the third slider 17;
[0047] Figure 3 It is shown that a fixed mounting plate 19 is provided above each of the third slide plates 16 , and the mounting plate 19 has a second connecting hole 20 .
[0048] The gas turbine fan lifting device of the present invention realizes the sliding connection between the third slide 16 and the main board 1 by adding a third slide 16, and an added third slider 17 and a third slide rail 18; during installation, the utility model can be installed on the gas turbine generator box through the second connection hole 20 of the mounting plate 19; and since the third slide 16 and the main board 1 are slidably connected, the distance between the two third slides 16 can be adjusted.
[0049] For further information, see Figures 1 to 5 The third slide 16 is mounted with a threaded fastener 21, which is at a vertical angle and is located vertically above the slot in the third slider 17. The fastener 21 mounted on the third slide 16 can be rotated clockwise or counterclockwise to move the lower end of the fastener 21 away from the slot in the third slider 17 or to insert the lower end into the slot and abut against the third slide rail 18 in the slot, thereby achieving positioning between the third slide 16 and the mainboard 1.
[0050] Furthermore, both ends of the first slide rail 2, the second slide rail 5 and the third slide rail 18 are respectively provided with detachable connecting bolts; the bolts are existing components and therefore are not drawn in the accompanying drawings. The function of the mounting bolts is to prevent the sliders installed on each slide rail from slipping out.
[0051] The utility model can change the lifting point in real time, and fills the gap of the existing LM6000 type gas turbine having no supporting lifting and maintenance tools; and realizes the functions of saving labor, increasing safety and convenience.
[0052] The words “first”, “second” and similar terms used in the specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as “a”, “an” or “the” do not indicate a quantity limitation, but rather indicate the presence of at least one. Words such as “include” or “comprise” mean that the elements or objects appearing before “include” or “comprises” include the elements or objects listed after “include” or “comprises” and their equivalents, and do not exclude other elements or objects. “Up”, “down”, “left”, “right” and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0053] The above-mentioned preferred embodiments of the present invention are only preferred embodiments and are not intended to limit the present invention. The scope of protection of the present invention is defined by the appended claims. For ordinary technicians in this field, other embodiments can be obtained based on the drawings without creative work, and any changes based on the claims of the present invention are within the scope of protection of the present invention.
Claims
1. The gas turbine fan hoisting device is characterized by: include: A main board, wherein the lower surface of the main board has a first slide rail fixedly connected thereto; a first slide plate, the first slide plate being at a parallel angle to the main plate; The first slide is located vertically below the main board; the upper surface of the first slide has a first slider fixedly connected thereto, the first slider having a slide groove therein, and the first slide rail is slidably mounted in the slide groove of the first slider; the lower surface of the first slide has a second slide rail fixedly connected thereto; the second slide rail and the first slide rail are at an intersecting angle; A second slide plate, the second slide plate being parallel to the first slide plate; the second slide plate being vertically below the first slide plate; a second slider being fixedly connected to the upper surface of the second slide plate, the second slide plate having a slide groove therein; the second slide rail being slidably mounted in the slide groove of the second slider; the second slide plate being provided with a first connecting hole extending through both upper and lower surfaces; A rotating shaft passes through the first connecting hole, and the upper end of the rotating shaft has a fixedly connected first limiting plate, and the first limiting plate is located above the second slide; a pulley is movably connected to the lower side of the rotating shaft.
2. The gas turbine fan hoisting device according to claim 1, characterized in that: The rotating shaft is further provided with a second limiting plate which is movably or fixedly connected; the second sliding plate is located between the first limiting plate and the second limiting plate.
3. The gas turbine fan hoisting device according to claim 1 or 2, characterized in that: A movably connected traction block is provided below the rotating shaft, and at least three traction members are provided on the side of the traction block. The traction block has a fixedly connected hanging plate, and the pulley is movably installed on the hanging plate.
4. The gas turbine fan hoisting device according to claim 3, characterized in that: Each of the traction members has a traction hole.
5. The gas turbine fan hoisting device according to claim 1, characterized in that: It comprises at least two third slide plates arranged in parallel, wherein the lower surface of each of the third slide plates is respectively provided with a third sliding block fixedly connected thereto, and the third sliding block has a sliding groove therein; The surface of the mainboard is provided with a third slide rail fixedly connected thereto, and the third slide rail is slidably mounted in the slide groove of the third slider; A fixed mounting plate is provided above each of the third slide plates, and the mounting plate has a second connecting hole.
6. The gas turbine fan hoisting device according to claim 5, characterized in that: The third slide plate is mounted with a threaded fastener, the fastener is at a vertical angle, and the position of the fastener is vertically above the slide slot in the third sliding block.
7. The gas turbine fan hoisting device according to claim 5, characterized in that: Both ends of the first slide rail, the second slide rail and the third slide rail are respectively provided with detachable bolts.