A steam turbine overhauling hoisting device for thermal power plant

Abstract

The utility model relates to hoist technology field especially relates to a kind of thermal power plant steam turbine overhaul hoisting equipment, the device includes support column, the support column upper end is provided with the balance bar for supporting, the balance bar upper end center is fixedly connected with slide rail, the slide rail periphery is movably connected with connecting frame, the one end of connecting frame near balance bar center is provided with connecting rod, the side of connecting rod near connecting frame is fixedly connected with telescopic rod, the fixed ring is fixedly connected with two groups on the side of connecting frame, the side of support column is fixedly connected with the hoisting equipment for lifting, the balance bar lower end surface is provided with empty slot, the one end of empty slot is provided with motor for driving, the motor output end is provided with threaded rod, the utility model is lifted by steam turbine, steam turbine is fixed by using inhaul cable and fixed ring to prevent its left and right deviation, realize a kind of thermal power plant steam turbine overhaul hoisting equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoist technology field especially relates to a thermal power plant steam turbine overhauls hoist equipment. BACKGROUND

[0002] Thermal power plant steam turbine is the core equipment of steam heat energy conversion into mechanical energy, and its stable operation is important to the power generation efficiency and safety of the whole power plant, because steam turbine is influenced by high temperature, high pressure, high speed rotation and other factors in the long-term operation process, and the parts are prone to wear, corrosion, fatigue and other problems, so it needs to be overhauled regularly.

[0003] When the old steam turbine hoist equipment hoists the steam turbine, it cannot be fixed, and the whole equipment is unstable when swinging left and right, and safety hazards are prone to occur during the overhaul.

[0004] Therefore, the existing problems are studied and improved, and a thermal power plant steam turbine overhauls hoist equipment is provided, which has reasonable structure design, high stability and considers all aspects of use, so as to solve the problems and improve the practical value through the technology. UTILITY MODEL CONTENTS

[0005] The utility model discloses a steam turbine is hoisted, and the steam turbine is fixed by using the inhaul cable and the fixed ring and is prevented from shifting left and right, realizes a kind of thermal power plant steam turbine overhauls hoist equipment.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a thermal power plant steam turbine overhauls hoist equipment, including support column and fixed ring, the support column upper end is provided with the balance bar for supporting, the balance bar upper end center is fixedly connected with slide rail, the slide rail periphery is movably connected with connecting frame, the connecting frame is close to the center of balance bar One end provided with connecting rod, the connecting rod is close to the side of connecting frame and is fixedly connected with telescopic rod, the fixed ring is fixedly connected with two groups on the side of connecting frame, the support column one side is fixedly connected with the hoist equipment for lifting, the balance bar lower end surface is provided with air slot, one end of the air slot is provided with motor for driving, the motor output end is provided with screw rod, the screw rod periphery is movably connected with the connecting block for moving the hoist equipment, the balance bar lower end center is fixedly connected with the fixed groove for stabilizing, the downward one side of the fixed groove is fixedly connected with the pull ring.

[0007] Preferably, the support column is provided with two groups, which are connected with the ground, and the balance bar is fixedly connected with the upper end of the support column, which is fixedly connected with the support column.

[0008] Preferably, the connecting frame is movably connected with the slide rail, the connecting frame is provided with two groups, one group is arranged at each end of the slide rail, the connecting frame is connected with the connecting rod through the telescopic rod, and the telescopic rod is folded in multiple layers.

[0009] Preferably, the lifting equipment is fixedly connected with a group of fixing rods on one side of the supporting column, two groups of motors are fixedly connected to the upper end of the fixing rods, and the output ends of the motors are movably connected with winding rollers for winding the steel cable.

[0010] Preferably, the fixing ring is provided with two groups at the lower half of the connecting frame, the fixing ring is fixedly connected to one side of the connecting frame close to the center of the equipment, one group is arranged on each side, and the inner diameter of the fixing ring matches the outer diameter of the steam turbine.

[0011] Preferably, the motor is fixedly connected to one end of the through balance rod, the threaded rod is arranged in the hollow groove, the connecting block is connected with the threaded rod, and the size matches the hollow groove, the connecting block is connected with the connecting rod, and the connecting block moves by rotating the threaded rod through the motor.

[0012] Preferably, the number of connecting blocks is two groups, the two groups of connecting blocks are oppositely arranged, the fixing groove is connected with the connecting block, and the pull ring is provided with two groups, one group is arranged below each connecting block.

[0013] The utility model has the following beneficial effects: when the lifting equipment lifts the steam turbine, one steel cable is connected through the pull rings on both sides, at this time, the steel cable is at the lower end of the steam turbine, when the equipment is started, the motor drives the threaded rod to control the movement of the connecting block, when the connecting blocks on both sides move, the steel cable will be bundled with the steam turbine in a staggered manner through the pull rings, so that the left and right swinging of the steam turbine is reduced, after the telescopic rod is fully extended, the connecting frame will be moved, when the connecting frames on both sides move synchronously towards the inside, the fixed ring will move synchronously towards the inside, and the fixed ring matches the outer diameter of the steam turbine, so when the fixed ring is fixed on the outer wall of the steam turbine, it is matched with the pull ring, so as to fix the steam turbine and stop the swinging, thereby reducing the occurrence of safety hazards. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole view of the steam turbine maintenance lifting equipment for thermal power plant proposed by the utility model;

[0015] Figure 2 It is a side view of the steam turbine maintenance lifting equipment for thermal power plant proposed by the utility model;

[0016] Figure 3 It is a bottom view of the steam turbine maintenance lifting equipment for thermal power plant proposed by the utility model;

[0017] Figure 4The utility model provides a kind of cross section of thermal power plant steam turbine overhauling hoisting equipment.

[0018] Legend:

[0019] 1, support column;2, balance bar;3, slide rail;4, connecting frame;5, connecting rod;6, telescopic rod;7, fixed ring;8, hoisting equipment;9, empty slot;10, motor;11, threaded rod;12, connecting block;13, fixed groove;14, pull ring. Specific embodiments

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0021] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the utility model;The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, and in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or electrically connected;It can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0022] Reference Figures 1-4The utility model provides a kind of steam turbine overhaul hoisting equipment of thermal power plant, including support column 1 and fixed ring 7, support column 1 upper end is provided with the balance bar 2 for supporting, balance bar 2 upper end center is fixedly connected with slide rail 3, slide rail 3 periphery is movably connected with connecting frame 4, and one end of connecting frame 4 near balance bar 2 center is provided with connecting rod 5, and the side of connecting rod 5 near connecting frame 4 is fixedly connected with telescopic rod 6, and fixed ring 7 is fixedly connected with two groups on the side of connecting frame 4, and the hoisting equipment 8 for lifting is fixedly connected on the side of support column 1, and the surface of balance bar 2 lower end is provided with air slot 9, and one end of air slot 9 is provided with motor 10 for driving, and the output end of motor 10 is provided with threaded rod 11, and threaded rod 11 periphery is movably connected with connecting block 12 for moving hoisting equipment 8, and the center of balance bar 2 lower end is fixedly connected with fixed groove 13 for stabilizing, and the side of fixed groove 13 downward is fixedly connected with pull ring 14.

[0023] In an alternative embodiment: support column 1 is provided with two groups, which are connected with the ground, and balance bar 2 is fixedly connected on the upper end of support column 1, which is fixedly connected with support column 1, and the balance bar 2 will press the stress point on the two side support columns 1 when the equipment is running, so as to ensure the stability of the equipment when running.

[0024] In an alternative embodiment: connecting frame 4 is movably connected with slide rail 3, and connecting frame 4 is provided with two groups, one group is arranged on each end of slide rail 3, connecting frame 4 is connected with connecting rod 5 through telescopic rod 6, and telescopic rod 6 is multi-layer folded, slide rail 3 provides guiding action when connecting frame 4 moves, and also makes it more stable when moving, so that connecting frame 4 is in the same horizontal plane when moving, preventing it from deviating.

[0025] In an alternative embodiment: hoisting equipment 8 is a group of fixed rods fixedly connected on the side of support column 1, and two groups of motors 10 are fixedly connected on the upper end of fixed rod, and the output end of motor 10 is movably connected with winding roller for winding steel cable, and two groups of winding rollers are connected with a steel cable, when hoisting, first synchronously rotate two groups of rotating rollers, and then place the steel cable on the lower end of steam turbine, start motor 10 to drive winding roller to rotate, so that two groups of winding rollers simultaneously wind steel cable, and steam turbine is lifted.

[0026] In an alternative embodiment: fixed ring 7 is provided with two groups in the lower half of connecting frame 4, and fixed ring 7 is fixedly connected on the side of connecting frame 4 near the center of equipment, and one group is arranged on each side, and the inner diameter of fixed ring 7 matches the outer diameter of steam turbine, which is convenient to surround steam turbine, so as to fix steam turbine when lifting, thereby reducing its shaking.

[0027] In an alternative embodiment: the motor 10 is fixedly connected to the through-bore 9 at one end of the balance bar 2, the threaded rod 11 is installed inside the through-bore 9, the connecting block 12 is connected to the threaded rod 11 and has a size matching the through-bore 9, the connecting block 12 is connected to the connecting rod 5, the connecting block 12 moves by rotating the threaded rod 11 driven by the motor 10, when the hoisting equipment 8 lifts the steam turbine, a steel cable is connected through the two side pull rings 14, at this time the steel cable is at the lower end of the steam turbine, when the equipment is started, the motor 10 drives the threaded rod 11 to control the movement of the connecting block 12, when the two connecting blocks 12 move, the steel cable will be bundled to the steam turbine in a staggered manner through the pull ring 14, so as to reduce the left and right swing, at the same time, since the connecting frame 4 is connected to the connecting rod 5 through the telescopic rod 6, and the connecting rod 5 is connected to the connecting block 12, when the connecting block 12 moves, it will drive the connecting rod 5 to move synchronously, when the connecting rod 5 moves, it will pull the telescopic rod 6 to move synchronously, since the telescopic rod 6 is folded in multiple layers, when the connecting block 12 drives the connecting rod 5 to move a distance, the telescopic rod 6 will be pulled out, after the telescopic rod 6 is fully extended, it will drive the connecting frame 4 to move, when the two connecting frames 4 move synchronously towards the inside, since the fixed ring 7 is connected to the connecting frame 4, when the connecting frame 4 moves, it will drive the fixed ring 7 to move inward synchronously, at the same time, since the fixed ring 7 matches the outer diameter of the steam turbine, when the fixed ring 7 is fixed on the outer wall of the steam turbine, it cooperates with the pull ring 14 to fix the steam turbine, so as to stop the swing and reduce the occurrence of safety hazards.

[0028] In an alternative embodiment: the connecting block 12 is two groups, the two groups of connecting blocks 12 are oppositely arranged, the fixed groove 13 is connected to the connecting block 12, the pull ring 14 is provided with two groups, each group is provided with one group under each connecting block 12, which facilitates the movement of the connecting block 12 and the synchronous movement of the pull ring 14, so that the steel cable bundles and fixes the steam turbine.

[0029] Working principle and process: after the steam turbine is lifted by the hoisting equipment 8, the worker starts the equipment, the motor 10 drives the connecting block 12 to move by driving the threaded rod 11, the connecting block 12 moves synchronously with the connecting rod 5, the connecting rod 5 moves to gradually extend the telescopic rod 6, after the telescopic rod 6 is fully extended, it will pull the connecting frame 4 to move, so as to fix the steam turbine, at the same time, the connecting block 12 will pull the steel cable through the pull ring 14, so as to bundle and fix the steam turbine.

[0030] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A hoisting device for overhauling a steam turbine of a thermal power plant, comprising a support column (1) and a fixing ring (7), characterized in that: The upper end of the support column (1) is provided with a balance bar (2) for support, the upper end of the balance bar (2) is fixedly connected with a slide rail (3) at the center, the outer periphery of the slide rail (3) is movably connected with a connecting frame (4), one end of the connecting frame (4) near the center of the balance bar (2) is provided with a connecting rod (5), one side of the connecting rod (5) near the connecting frame (4) is fixedly connected with an extension rod (6), two groups of fixed rings (7) are fixedly connected on one side of the connecting frame (4), one side of the support column (1) is fixedly connected with a hoisting device (8) for hoisting, a hollow groove (9) is formed in the lower end surface of the balance bar (2), one end of the hollow groove (9) is provided with a motor (10) for driving, the output end of the motor (10) is provided with a threaded rod (11), the outer periphery of the threaded rod (11) is movably connected with a connecting block (12) for moving the hoisting device (8), the lower end center of the balance bar (2) is fixedly connected with a fixing groove (13) for stability, the downward side of the fixing groove (13) is fixedly connected with a pull ring (14).

2. The hoisting device for overhauling a steam turbine of a thermal power plant according to claim 1, characterized in that: The support column (1) is provided with two groups, which are connected with the ground, the balance bar (2) is fixedly connected to the upper end of the support column (1), and the balance bar (2) is fixedly connected to the support column (1).

3. The hoisting device for overhauling a steam turbine of a thermal power plant according to claim 1, characterized in that: The connecting frame (4) is movably connected with the slide rail (3), the connecting frame (4) is provided with two groups, one group is arranged at each end of the slide rail (3), the connecting frame (4) is connected with the connecting rod (5) through the extension rod (6), and the extension rod (6) is folded in multiple layers.

4. The hoisting device for the maintenance of a steam turbine of a thermal power plant according to claim 1, characterized in that: The hoisting device (8) is a group of fixed rods fixedly connected to one side of the support column (1), two groups of motors (10) are fixedly connected to the upper end of the fixed rod, and the output end of the motor (10) is movably connected with a winding roller for winding the steel cable.

5. The hoisting device for the maintenance of a steam turbine of a thermal power plant according to claim 1, characterized in that: The fixed ring (7) is provided with two groups in the lower half of the connecting frame (4), the fixed ring (7) is fixedly connected to one side of the connecting frame (4) near the center of the device, one group is arranged on each side, and the inner diameter of the fixed ring (7) matches the outer diameter of the steam turbine.

6. The hoisting device for the maintenance of a steam turbine of a thermal power plant according to claim 1, characterized in that: The motor (10) is fixedly connected to one end of the hollow groove (9) penetrating through the balance bar (2), the threaded rod (11) is installed in the hollow groove (9), the connecting block (12) is connected with the threaded rod (11), and the size matches the hollow groove (9), the connecting block (12) is connected with the connecting rod (5), and the connecting block (12) moves by rotating the threaded rod (11) through the motor (10).

7. The hoisting device for the maintenance of a steam turbine of a thermal power plant according to claim 1, characterized in that: The number of connecting blocks (12) is two groups, the two groups of connecting blocks (12) are oppositely arranged, the fixed groove (13) is connected with the connecting block (12), and the pull ring (14) is provided with two groups, one group is arranged on the lower end of each connecting block (12).

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