Supporting structure for overhauling power plant boiler

Abstract

The utility model relates to the technical field of power plant boilers, and discloses a power plant boiler maintenance supporting structure which comprises a lifting table base, two first fixing side plates are symmetrically fixed to the top face of the lifting table base, and a first sliding groove is formed in each first fixing side plate. A pedal table is arranged on one side of the lifting table base, a servo motor is arranged in the pedal table, a movable lead screw is driven by the servo motor to rotate, a lifting frame is arranged between the two first fixing side plates, and one end of the bottom of the lifting frame is rotationally connected with the two first fixing side plates respectively. The problems that a traditional supporting device is poor in stability and difficult to adapt to boiler parts of different sizes and shapes, the installation and disassembly process of a traditional device is tedious, consumed time is long, and the traditional device is not suitable for boiler parts of different sizes and shapes are solved. And the maintenance cost and the potential safety hazard are increased.

Description

TECHNICAL FIELD

[0001] The utility model application relates to the technical field of power plant boiler, specifically a kind of support structure for power plant boiler overhaul. BACKGROUND

[0002] Power plant boiler is a kind of chemical energy conversion for heat energy, and further generates steam to drive steam turbine to generate electricity The key equipment, it is mainly composed of furnace, combustion system, water-cooled wall, superheater, reheater, economizer and air preheater etc., boiler is burnt coal, natural gas, petroleum etc., in furnace high-temperature flue gas is generated, heats water in water-cooled wall, makes it evaporate into steam, steam is further heated after superheater and reheater, reaches high-temperature high-pressure state and enters steam turbine, pushes steam turbine to rotate, drives generator to generate electricity, and the performance of boiler directly influences the efficiency and environmental protection index of power plant, modern power plant boiler usually adopts high-efficiency combustion technology, low nitrogen oxide emission technology and waste heat recovery system, to improve energy utilization efficiency and reduce pollutant emission, and power plant boiler is one of the core equipment of thermal power plant, and its stable operation is crucial to the reliability and economy of power system.

[0003] During the overhaul of power plant boiler, the boiler components often need to be disassembled, replaced or maintained, the traditional support device is mostly fixed structure, the adjustment range is limited, and the stability is poor, it is difficult to adapt to different sizes and shapes of boiler components, in addition, the traditional device installation and disassembly process is complicated, and it takes a long time, increases the overhaul cost and safety hazard, therefore, a new type of support structure is needed, which can quickly adjust height and clamping force, and has good stability and adaptability, to meet the diversified needs of power plant boiler overhaul. SUMMARY

[0004] In order to solve the problems of poor stability of traditional support device, difficult to adapt to different sizes and shapes of boiler components, complicated installation and disassembly process of traditional device, long time, increased overhaul cost and safety hazard, the utility model provides a kind of support structure for power plant boiler overhaul, to solve the above problems.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] The utility model provides a kind of support structure for power plant boiler overhaul, including lifting platform base, the top surface of the lifting platform base is fixed with two first fixed side plates symmetrically, first sliding slot is set in each first fixed side plate, lifting frame is arranged between two first fixed side plates, the bottom of lifting frame one end is rotatably connected with two first fixed side plates respectively, the bottom of lifting frame other end is rotatably connected with adjusting rod, adjusting rod two ends are slidably connected in the inside of two first sliding slots respectively, lifting top plate is arranged above lifting frame, the bottom end of the lifting top plate is fixed with two second fixed side plates symmetrically, second sliding slot is set in each second fixed side plate, the top surface of the lifting frame one end is rotatably connected with two second fixed side plates respectively, the top surface of the lifting frame other end is slidably connected in the inside of second sliding slot, one side of the lifting platform base is fixed with footrest platform, servo motor is fixed in the inside of footrest platform, movable lead screw is fixed at the output end of servo motor, movable lead screw is threadedly connected with adjusting rod.

[0007] Further, the top surface of the lifting platform base is fixed with two support columns symmetrically near one end of the footrest platform, and the lifting top plate is slidably connected with the two support columns.

[0008] Further, the top surface of the lifting platform base is fixed with a fixed block at one end away from the footrest platform, and the movable lead screw is rotatably connected with the fixed block at an end away from the servo motor.

[0009] Further, the fixed block is located at one end of the bottom of the support column away from the footrest platform, and the length of the movable lead screw is greater than the length of the first sliding slot.

[0010] Further, a protective baffle is formed on the top surface of the lifting top plate, and the protective baffle is slidably connected with the support column at one end near the support column.

[0011] Further, a foot pad is fixed on the top surface of the footrest platform, and anti-slip stripes are provided on the top surface of the foot pad.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、In the utility model, the footrest platform is arranged on one side of the lifting platform base, and the servo motor is arranged in the footrest platform, so that the servo motor drives the movable lead screw to rotate, the movable lead screw drives the adjusting rod to move, and then the adjusting rod drives the lifting frame to move, at this time, the lifting frame pushes the lifting top plate upward, solves the problems of poor stability of traditional support device, difficulty in adapting to different sizes and shapes of boiler parts, complicated installation and disassembly process of traditional device, long time consumption, and increases the maintenance cost and safety hazard.

[0014] 2. The utility model discloses, through setting up the protection baffle and support column on the lifting roof top surface, make the lifting frame support column to the one side of lifting roof and support when pushing the lifting roof and moving upwards, simultaneously will not block the lifting roof movement, avoid the inclination of lifting roof bottom end easily because of uneven stress leads to, and the protection baffle on the lifting roof top surface protects the staff. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating labor intensity.

[0016] Figure 1 It is the left side three-dimensional structure schematic diagram according to an embodiment of the present application.

[0017] Figure 2 It is Figure 1 the right side structure three-dimensional schematic diagram in the embodiment shown.

[0018] Figure 3 It is Figure 1 the bottom view structure three-dimensional schematic diagram in the embodiment shown.

[0019] Figure 4 It is Figure 1 the transmission assembly structure three-dimensional structure schematic diagram in the embodiment shown.

[0020] The meaning of reference signs in the drawing: 1, lifting platform base; 2, first fixed side plate; 3, first sliding groove; 4, lifting frame; 5, lifting roof; 6, second fixed side plate; 7, second sliding groove; 8, adjusting rod; 9, footrest platform; 10, foot pad; 11, servo motor; 12, movable screw rod; 13, fixed block; 14, support column; 15, protection baffle. DETAILED DESCRIPTION

[0021] In order to make the application purposes, features, advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below, obviously, the embodiments described below are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creating labor intensity are within the scope of protection of the present application.

[0022] Reference is made to Figure 1 , Figure 2 , Figure 3 and Figure 4The utility model provides an electric power plant boiler overhauls support structure, including the lifting platform base 1, the top surface symmetry of lifting platform base 1 is fixed with two first fixed side plates 2, and the inside of each first fixed side plate 2 is provided with first sliding slot 3, and the lifting frame 4 is arranged between two first fixed side plates 2, and one end of lifting frame 4 bottom is rotatably connected with two first fixed side plates 2, and the other end of lifting frame 4 bottom is rotatably connected with adjusting rod 8, and the both ends of adjusting rod 8 are slidably connected in the inside of two first sliding slot 3, and the lifting top plate 5 is arranged above lifting frame 4, and the bottom end symmetry of lifting top plate 5 is fixed with two second fixed side plates 6, and the inside of each second fixed side plate 6 is provided with second sliding slot 7, and one end of lifting frame 4 top surface is rotatably connected with two second fixed side plates 6, and the other end of lifting frame 4 top surface is slidably connected in the inside of second sliding slot 7, and one side of lifting platform base 1 is fixed with footrest platform 9, and servo motor 11 is fixed in the inside of footrest platform 9, and movable lead screw 12 is fixed at the output end of servo motor 11, and movable lead screw 12 is threadedly connected with adjusting rod 8, so that servo motor 11 drives lifting top plate 5 to lift.

[0023] Specifically, the end of the top surface of the lifting platform base 1 away from the footrest platform 9 is fixed with a fixed block 13, the end of the movable lead screw 12 away from the servo motor 11 is rotatably connected with the fixed block 13, the fixed block 13 is located at the end of the bottom of the support column 14 away from the footrest platform 9, and the length of the movable lead screw 12 is greater than the length of the first sliding slot 3, so as to increase the lifting height of the lifting top plate 5.

[0024] As an optimization scheme, as shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the end of the top surface of the lifting platform base 1 close to the footrest platform 9 is symmetrically fixed with two support columns 14, and the lifting top plate 5 is slidably connected with the two support columns 14, so as to avoid the inclination caused by the uneven stress on the bottom end of the lifting top plate 5.

[0025] Specifically, the top surface of the lifting top plate 5 is provided with a protective baffle 15, the end of the protective baffle 15 close to the support column 14 is slidably connected with the support column 14, the top surface of the footrest platform 9 is fixed with a footrest pad 10, and the top surface of the footrest pad 10 is provided with anti-skid stripes, so as to protect the staff from falling off the lifting top plate 5.

[0026] Working principle: the staff steps on the foot pad 10 to make it more convenient to get on the top surface of the lifting top plate 5, and then starts the servo motor 11, so that the servo motor 11 drives the movable lead screw 12 to rotate, so that the movable lead screw 12 drives the adjusting rod 8 to move, and the adjusting rod 8 moves at the same time. The lifting frame 4 moves, so that the lifting frame 4 drives the lifting top plate 5 to move upwards, and the adjusting rod 8 slides in the first sliding groove 3 at the same time, and the top end of the lifting frame 4 also slides in the second sliding groove 7, so that the lifting top plate 5 moves upwards, and the lifting top plate 5 slides on the supporting column 14 at the same time. At this time, the supporting column 14 supports one side of the lifting top plate 5 to avoid the inclination of the lifting top plate 5 caused by uneven support stress, and the protective baffle 15 on the top surface of the lifting top plate 5 protects the staff to avoid falling due to stepping on the empty.

[0027] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and range of equivalents of the essential elements of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0028] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A support structure for the maintenance of a power plant boiler, comprising a lifting platform base (1), characterized in that: The lifting platform base (1) top surface symmetry is equipped with two first fixed side plate (2), each first fixed side plate (2) inside all set up first sliding slot (3), two first fixed side plate (2) between be provided with lifting frame (4), lifting frame (4) bottom one end is respectively connected with two first fixed side plate (2) rotation, lifting frame (4) bottom the other end is rotatably connected with adjusting rod (8), adjusting rod (8) both ends are respectively connected in two first sliding slot (3) inside, lifting frame (4) top is provided with lifting top plate (5), lifting top plate (5) bottom end symmetry is equipped with two second fixed side plate (6), each second fixed side plate (6) inside all set up second sliding slot (7), lifting frame (4) top surface one end is respectively connected with two second fixed side plate (6) rotation, lifting frame (4) top surface the other end is connected in second sliding slot (7) inside, lifting platform base (1) one side is fixed with footrest platform (9), footrest platform (9) inside is fixed with servo motor (11), servo motor (11) output is fixed with movable screw rod (12), movable screw rod (12) is connected with adjusting rod (8) thread.

2. A support structure for use in the maintenance of a boiler of a power plant according to claim 1, characterized in that: The lifting platform base (1) top surface is fixed with two support columns (14) symmetry near the one end of footrest platform (9), and the lifting top plate (5) is slidably connected with the two support columns (14).

3. A support structure for use in the maintenance of a power plant boiler according to claim 1, characterized in that: The lifting platform base (1) top surface is fixed with a fixed block (13) away from the one end of footrest platform (9), and the movable screw rod (12) is rotatably connected with the fixed block (13) away from the servo motor (11).

4. A support structure for use in the maintenance of a power plant boiler according to claim 3, characterized in that: The fixed block (13) is located at the bottom of the support column (14) away from the one end of footrest platform (9), and the length of the movable screw rod (12) is greater than the length of the first sliding slot (3).

5. A support structure for use in the maintenance of a power plant boiler according to claim 2, characterized in that: The lifting top plate (5) top surface is provided with a protective baffle (15), and the protective baffle (15) is slidably connected with the support column (14) near the one end of the support column (14).

6. A support structure for use in the maintenance of a power plant boiler according to claim 2, characterized in that: The footrest platform (9) top surface is fixed with a foot pad (10), and the foot pad (10) top surface is provided with anti-skid stripes.

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