Mounting device for base ring foundation bolt of pumped storage power station

Abstract

The utility model discloses a foundation bolt mounting device for a base ring of a pumped storage power station. The foundation bolt mounting device is correspondingly and fixedly arranged at each reserved foundation bolt hole part at the lower part of a foundation ring of the base ring of the pumped storage power station; the mounting device comprises a bottom plate, a connecting rod, a vertical rod, channel steel and a jack, the bottom plate is horizontally arranged, and the four corners of the bottom plate of a square structure are each provided with a vertical rod. Channel steel is horizontally arranged at the tops of the vertical rods, notches of the channel steel face downwards, the tops of the four vertical rods are welded to the four corresponding corners of the channel steel respectively, a hole is formed in the middle of the channel steel, and the center of the hole is consistent with the center of a reserved foundation bolt hole in the seat ring foundation ring; a connecting rod is welded to each of the two side edges of the channel steel, and the bent section of the upper end of each connecting rod is welded to the lower portion of the foundation ring plate with the reserved foundation bolt hole in the seat ring foundation ring; and the jack is placed in the middle of the bottom plate. According to the mounting device, the working efficiency is improved to a great extent, the safety of operators is well guaranteed, and the rapidness and safety of foundation bolt mounting operation are improved.

Description

Technical fields:

[0001] This utility model belongs to the field of electromechanical installation technology, and particularly relates to the field of pumped storage power station seat ring anchor bolt installation technology. Specifically, it is a pumped storage power station seat ring anchor bolt installation device. Background technology:

[0002] Currently, pumped storage power stations are under construction at their peak. The volute of the pumped storage unit is generally assembled and welded in the installation room and then hoisted in as a whole. There are generally two installation methods for the anchor bolts of the pumped storage unit's seat ring: one is to install the anchor bolts on the seat ring before hoisting and hoist them in with the seat ring; the other is to place them in the foundation ring bolt sleeve in the pit first, and then lift them up and connect them to the seat ring after the seat ring is hoisted into place and adjusted.

[0003] Taking a 300MW pumped-storage power station as an example, the foundation anchor bolts consist of 36 M100*3050mm bolts and 4 M100*2350mm bolts, weighing 227kg and 175kg respectively. These bolts are characterized by their large quantity, length, and weight. Using the first method, it is difficult to align all the long and numerous bolts with the foundation anchor bolt holes. The conventional second method, when used in confined construction space, requires significant manpower and time for the heavy and numerous anchor bolts, and also poses considerable safety risks during the lifting process.

[0004] Therefore, in order to solve this problem, there is an urgent need for a device for installing anchor bolts on the seat ring of a pumped storage power station. Utility model content:

[0005] This utility model provides a pumped storage power station seat ring anchor bolt installation device to address the shortcomings of existing technologies. It solves the technical problems of the existing technology, which requires a large amount of human resources and time for the installation of pumped storage power station seat ring anchor bolts and poses significant safety risks.

[0006] To achieve the above objectives, this utility model adopts the following technical solution:

[0007] This utility model provides a mounting device for anchor bolts on the base ring of a pumped storage power station. The device is fixedly installed at each of the pre-drilled anchor bolt holes on the lower part of the base ring of the pumped storage power station. The device includes a base plate, connecting rods, uprights, channel steel, and a jack. The channel steel, connecting rods, uprights, and base plate are welded together. The base plate is a square structure, horizontally positioned, with an upright at each of its four corners. A channel steel is installed at the top of each upright, with the channel opening facing downwards and horizontally positioned. The tops of the four uprights are welded to the corresponding corners of the channel steel. A hole is drilled in the center of the channel steel, with the center of the hole aligning with the center of the pre-drilled anchor bolt hole on the base ring. A connecting rod is welded to each side of the channel steel, vertically positioned with a 90° bend at the top. The bent section of the connecting rod is welded to the lower part of the base ring plate containing the pre-drilled anchor bolt hole. The jack is placed in the middle of the base plate.

[0008] The channel steel is made of 20# channel steel and the length of the channel steel is 20cm.

[0009] The diameter of the opening in the center of the channel steel is 12cm.

[0010] The connecting rod is made of round steel with a diameter of Φ16 and a length of 60cm.

[0011] The connecting rod is bent at 90° at the top 10cm position, and the lower ends of the two connecting rods are welded to the corresponding left and right center lines of the channel steel.

[0012] The upright is made of round steel with a diameter of Φ12 and a length of 80cm.

[0013] The base plate is made of steel plate with a thickness of 1cm and a length and width of 20cm.

[0014] The jack is a long hydraulic jack with a body height of 60cm and a lifting height of 50cm.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention reduces manpower input and working time by adding a small amount of prefabrication work, greatly improving work efficiency, ensuring the safety of workers, and enhancing the speed and safety of anchor bolt installation.

[0017] This utility model is used for the installation of anchor bolts for the seat rings of pumped storage power stations, and can also be used for the installation of anchor bolts for the seat rings of conventional hydropower stations with similar structures. Attached image description:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is the front view of the present invention;

[0020] Figure 3 This is a top view of the present invention;

[0021] Figure 4 This is a side view of the present invention;

[0022] Figure 5 This is a schematic diagram illustrating the new use of this utility model.

[0023] Figure reference numerals:

[0024] 1-Connecting rod, 2-Channel steel, 3-Upright pole, 4-Base plate, 5-Jack, 6-Sealing ring, 7-Anchor bolt. Detailed implementation method:

[0025] The present invention will be further described below with reference to specific embodiments. These specific embodiments are further explanations of the principle of the present invention and are not intended to limit the present invention in any way. Any technology that is the same as or similar to the present invention does not exceed the protection scope of the present invention.

[0026] See Figures 1-5 This utility model provides an installation device for anchor bolts on the base ring of a pumped storage power station. The device is welded to each of the pre-drilled anchor bolt holes at the bottom of the base ring of the pumped storage power station. The device includes a base plate 4, connecting rods 1, uprights 3, channel steel 2, and jacks 5. The channel steel 2, connecting rods 1, uprights 3, and base plate 4 are welded together as a whole. The base plate 4 is a square structure made of 1cm thick steel plate, 20cm in length and width. The base plate 4 is horizontally positioned, with an upright 3 vertically welded to each of the four corners. The uprights 3 are made of Φ12 diameter round steel and are 80cm long. A channel steel 2, made of 20# channel steel, is installed at the top of the uprights 3. The channel steel 2 is 20cm long, with the groove facing downwards and horizontally positioned. The tops of the four uprights 3 are welded to the corresponding corners of the channel steel 2. A 12cm diameter hole is drilled in the center of the channel steel 2, and the center of the hole coincides with the center of the pre-drilled anchor bolt holes on the base ring. A connecting rod 1 is welded to each side of the channel steel 2. The connecting rod 1 is made of round steel with a diameter of Φ16 and a length of 60cm. The connecting rod 1 is set vertically and bent at 90° at the top 10cm position. The lower ends of the two connecting rods 1 are welded to the corresponding left and right center lines of the channel steel 2, respectively. The bent section at the top of the connecting rod 1 is welded to the lower part of the foundation ring plate with the reserved anchor bolt holes on the base ring. The jack 5 is placed in the middle position on the base plate 4. The jack 5 is a long hydraulic jack with a body height of 60cm and a lifting height of 50cm.

[0027] In use, first weld the connecting rod 1 of the installation device to each of the reserved anchor bolt holes at the bottom of the seat ring base ring, ensuring that the center of the reserved anchor bolt holes is consistent with the center of the opening of the channel steel 2. Then place the jack 5 on the base plate 4. Before hoisting the seat ring 6, first pass all the anchor bolts 7 through the reserved anchor bolt holes on the seat ring base ring and place them on the corresponding channel steel 2 of the installation device. After the seat ring 7 volute is hoisted, adjusted and reinforced, start the jack 5. The top of the piston rod of the jack 5 passes through the middle opening of the channel steel 2 and lifts the anchor bolts 7 upward symmetrically. Use washers and nuts to pre-tighten and secure the anchor bolts 7 to the seat ring 6.

Claims

1. A pumped storage power station seat ring anchor bolt mounting device, characterized by: The installation device is correspondingly fixed at each reserved anchor bolt hole part of the lower part of the seat ring foundation ring of the pumped storage power station; the installation device comprises a bottom plate (4), a connecting rod (1), a vertical rod (3), a channel steel (2) and a jack (5), the channel steel (2), the connecting rod (1), the vertical rod (3) and the bottom plate (4) are welded into an integral whole; the bottom plate (4) is of square structure and is horizontally arranged, and one vertical rod (3) is vertically arranged at each corner of the bottom plate (4); the channel steel (2) is arranged at the top of the vertical rod (3), the channel steel (2) is horizontally arranged with the notch downward, the four vertical rods (3) are respectively welded with the channel steel (2) at the corresponding four corners, the channel steel (2) is provided with a hole in the middle, the center of the hole is consistent with the center of the reserved anchor bolt hole on the seat ring foundation ring, and the jack (5) is placed at the middle position on the bottom plate (4).

2. The mounting device for the foot bolt of the seat ring of a pumped storage power station according to claim 1, characterized in that: The channel steel (2) is selected from 20# channel steel, and the length of the channel steel (2) is 20 cm.

3. The mounting device for the foot bolt of the seat ring of the pumped storage power station according to claim 1, characterized in that: The hole in the middle of the channel steel (2) has a diameter of 12 cm.

4. The mounting device for the foot bolt of the seat ring of a pumped storage power station according to claim 1, characterized in that: The connecting rod (1) is made of round steel with a diameter of Φ16 and a length of 60 cm.

5. The mounting device for the foot bolt of the seat ring of the pumped storage power station according to claim 1, characterized in that: The connecting rod (1) is bent by 90° at the position of 10 cm of the upper end, and the lower ends of the two connecting rods (1) are respectively welded with the channel steel (2) at the corresponding left and right center line positions.

6. The mounting device for the foot bolt of the seat ring of a pumped storage power station according to claim 1, characterized in that: The vertical rod (3) is made of round steel with a diameter of Φ12 and a length of 80 cm.

7. The mounting device for the foot bolt of the seat ring of a pumped storage power station according to claim 1, characterized in that: The bottom plate (4) is made of steel plate with a thickness of 1 cm and a length and width of 20 cm.

8. The mounting device for the foot bolt of the seat ring of a pumped storage power station according to claim 1, characterized in that: The jack (5) is a long hydraulic jack with a body height of 60 cm and a rising height of 50 cm.

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