A pump storage power station water turbine overhauling device

Abstract

The application discloses a pump storage power station water turbine overhauling device, which comprises a support table (1) composed of multiple groups of fan annular support blocks (4), the upper end of the support block (4) is provided with a support rod (2), the top of the support rod (2) is provided with a guide rail (3), one end of the support block (4) is provided with a connecting block (5), the other side of the support block (4) is provided with a connecting groove (6) corresponding to the connecting block (5), one end of the guide rail (3) is provided with a first butt joint block (7), the other end of the guide rail (3) is provided with a second butt joint block (15) corresponding to the first butt joint block (7), the first butt joint block (7) and the second butt joint block (15) are provided with mounting rods (8), and the mounting rods (8) are provided with supports (9). The device can guarantee the safe movement of overhauling personnel and reduce the labor intensity of the overhauling personnel.

Description

TECHNICAL FIELD

[0001] The present application relates to a water turbine maintenance device, in particular to a pumped storage power station water turbine maintenance device. BACKGROUND

[0002] The water turbine is a device that converts water energy into mechanical energy by using water flow energy, and its main function is to generate electricity. The water turbine is widely used in hydropower stations, and through the impact and rotation of water flow, the impeller of the water turbine is driven to rotate, thereby driving the generator to rotate and converting mechanical energy into electrical energy. The water turbine is one of the core equipment of the hydropower station, providing clean and renewable power resources. However, the water turbine needs to be regularly maintained during use to avoid damage to the components in the water turbine and affect the operation of the water turbine.

[0003] During maintenance, maintenance personnel need to go down into the water turbine for maintenance, and the runner needs to be disassembled and assembled. During actual maintenance, the runner is located at a high position, and a safety belt needs to be worn, and the safety belt should be hung on a solid and firm component. However, since the hub of the water turbine is smooth on all sides, there is no component to hang the safety belt. If a lifting hook or lifting ring is welded on the surface of the hub to hang the safety belt, the welding point is prone to loose and fall off, and the safety of the maintenance personnel cannot be guaranteed. For example, the patent with application number 202210850458.0 discloses a water turbine maintenance safety auxiliary device, which includes a support rod, a support table, a fastener, a ring rail, and a fall arrestor. The support rod includes a plurality of vertically arranged rods, and the lower end of the support rod is provided with external threads for connecting with the screw hole on the upper end of the water turbine hub. The support table is arranged at the upper end of the support rod, and the ring rail is arranged at the upper end of the support table. The plurality of support rods are evenly distributed on the circumference of the ring rail, which can provide safety protection for the maintenance personnel and has good safety. The convex points on the outer side of the wear-resistant sleeve are provided with grooves that can be inserted into the convex points, and the locking is achieved by the cooperation of the convex points and the grooves. However, during maintenance, if the maintenance personnel need to move along the ring rail, it is inconvenient to move, and the staff needs to cooperate to move the wear-resistant sleeve, which makes the maintenance more inconvenient. Moreover, the maintenance tools need to be held by the maintenance personnel, and the labor intensity of the maintenance personnel is large. SUMMARY

[0004] The purpose of the present application is to provide a pumped storage power station water turbine maintenance device. It can ensure the safe movement of the maintenance personnel and reduce the labor intensity of the maintenance personnel.

[0005] The technical scheme of the present application: a pump storage power station water turbine overhauling device, comprising a support table composed of multiple groups of fan-shaped supporting blocks, the upper end of the supporting block is provided with a support rod, the top of the support rod is provided with a guide rail, one end of the supporting block is provided with a connecting block, the other side of the supporting block is provided with a connecting groove corresponding to the connecting block, one end of the guide rail is provided with a first butt joint block, the other end of the guide rail is provided with a second butt joint block corresponding to the first butt joint block, the first butt joint block and the second butt joint block are provided with a mounting rod, the mounting rod is mounted on a support, the upper side of the support is provided with a mounting seat capable of rotating relative to the support through a ratchet disc, the mounting seat is provided with an extension rod perpendicular to the mounting seat, the extension rod is provided with a placing rack below, and the mounting seat is provided with a fall protector.

[0006] In the foregoing pump storage power station water turbine overhauling device, the first butt joint block is a first butt joint block in the shape of a Chinese character "K", and the protruding part of the first butt joint block is provided with a first positioning hole corresponding to the mounting rod.

[0007] In the foregoing pump storage power station water turbine overhauling device, the second butt joint block is provided with a second positioning hole corresponding to the first positioning hole.

[0008] In the foregoing pump storage power station water turbine overhauling device, the extension rod comprises an inner rod, an outer rod movably arranged outside the inner rod, and a locking mechanism arranged in the inner rod.

[0009] In the foregoing pump storage power station water turbine overhauling device, the locking mechanism comprises a fixing block arranged in the middle of one end of the inner rod, guide rods arranged on both sides of the fixing block, springs arranged outside the guide rods, locking tongues arranged at the ends of the springs, an adjusting rod arranged in the middle of the other end of the inner rod, a pull rope connected to the locking tongues arranged at the end of the adjusting rod, and guide blocks arranged outside the adjusting rod.

[0010] In the foregoing pump storage power station water turbine overhauling device, the outer rod is provided with a lock hole corresponding to the locking tongue.

[0011] In the foregoing pump storage power station water turbine overhauling device, the ratchet disc comprises a ratchet arranged outside the mounting seat and a telescopic pawl mounted on the support, and the rear side of the pawl is provided with a jacking rod.

[0012] In the foregoing pump storage power station water turbine overhauling device, the rear side of the pawl is provided with a sliding groove corresponding to the jacking rod.

[0013] In the foregoing pump storage power station water turbine overhauling device, the mounting seat comprises a middle disc, a mounting disc arranged below the disc for mounting the ratchet, horizontal rods corresponding to the number of supporting blocks arranged outside the disc, and clamping blocks corresponding to the guide rails arranged at the ends of the horizontal rods.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] 1、The application is convenient for carrying organization by supporting block, and the support table is connected through the cooperation of the connecting block and the connecting groove, and the first and second connecting blocks at the end of the guide rail can be matched and connected, and are limited through the mounting rod, so that the mounting rod can install and support the support, and can block the water turbine during maintenance to prevent non-workers from entering;

[0016] 2、The support is provided with a mounting seat, the mounting seat is rotated in one direction through the cooperation of the ratchet and the telescopic pawl, the shaking of the mounting seat is reduced, and the rear side of the pawl is provided with a jacking rod, so that the mounting seat is not easy to shake and the safety of the maintenance personnel is good;

[0017] 3、The mounting seat is provided with a telescopic rod, and the telescopic rod is provided with a placing rack, so that the maintenance tools can be placed on the placing rack, the workers do not need to hold multiple maintenance tools, the working intensity is small, and the possibility of falling of the maintenance tools is reduced, and the telescopic rod can be adjusted in length through the pressing of the adjusting rod, so that the pull rope drives the lock tongue to retract, and the length adjustment is realized, and the applicability is better. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the application;

[0019] Figure 2 is a structural schematic view of the support block of the application;

[0020] Figure 3 is a structural schematic view of the telescopic rod of the application;

[0021] Figure 4 is a partial enlarged view of the telescopic rod of the application;

[0022] Figure 5 is a structural schematic view of the ratchet of the application.

[0023] The marks in the drawings are: 1-supporting table, 2-supporting rod, 3-guide rail, 4-supporting block, 5-connecting block, 6-connecting groove, 7-first connecting block, 8-mounting rod, 9-support, 10-mounting seat, 12-telescopic rod, 13-placing rack, 14-fall arrestor, 15-second connecting block, 16-ratchet disc, 17-first positioning hole, 18-second positioning hole, 19-inner rod, 20-outer rod, 21-fixing block, 22-guide rod, 23-spring, 24-lock tongue, 25-adjusting rod, 26-pull rope, 27-lock hole, 28-guide block, 29-paw, 30-jacking rod, 31-slots, 32-disc, 33-cross rod, 34-clamping block, 35-mounting disc, 36-ratchet. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0025] Example 1. A turbine maintenance device for a pumped storage power station, comprising the following components: Figures 1-5 As shown, a support platform 1 is composed of multiple sets of fan-shaped support blocks 4. The upper end of the support block 4 is provided with a support rod 2, the top of the support rod 2 is provided with a guide rail 3, one end of the support block 4 is provided with a connecting block 5, and the other side of the support block 4 is provided with a connecting groove 6 corresponding to the connecting block 5. One end of the guide rail 3 is provided with a first docking block 7, and the other end of the guide rail 3 is provided with a second docking block 15 corresponding to the first docking block 7. The first docking block 7 and the second docking block 15 are provided with an installation rod 8. A support 9 is installed on the installation rod 8. The upper side of the support 9 is provided with a mounting seat 10 that can rotate relative to the support 9 via a ratchet disc 16. The mounting seat 10 is provided with a telescopic rod 12 perpendicular to the mounting seat 10. A placement frame 13 is provided below the telescopic rod 12. A fall arrestor 14 is provided on the mounting seat 10.

[0026] The first docking block 7 is a convex-shaped first docking block, and the protruding part of the first docking block 7 is provided with a first positioning hole 17 corresponding to the mounting rod 8.

[0027] The second docking block 15 is provided with a second positioning hole 18 corresponding to the first positioning hole 17.

[0028] The telescopic rod 12 includes an inner rod 19, an outer rod 20 that can move relative to the inner rod 19, and a locking mechanism in the inner rod 19.

[0029] The locking mechanism includes a fixing block 21 with an inner rod 19 at one middle, guide rods 22 on both sides of the fixing block 21, a spring 23 outside the guide rods 22, a locking tongue 24 at the end of the spring 23, an adjusting rod 25 at the other middle of the inner rod 19, a pull rope 26 connected to the locking tongue 24 at the end of the adjusting rod 25, and a guide block 28 outside the adjusting rod 25.

[0030] The outer rod 20 is provided with a lock hole 27 corresponding to the lock tongue 24.

[0031] The ratchet disc 16 includes a ratchet 36 located outside the mounting base 10 and a telescopic pawl 29 mounted on the support 9. A push rod 30 is provided on the rear side of the pawl 29.

[0032] The pawl 29 is provided with a groove 31 on its rear side that corresponds to the push rod 30.

[0033] The mounting base 10 includes a central disc 32, a mounting plate 35 for mounting a ratchet 36 is provided below the disc 32, and a crossbar 33 corresponding to the number of support blocks 4 is provided outside the disc 32. The end of the crossbar 33 is provided with a locking block 34 corresponding to the guide rail 3.

[0034] In the embodiment 2, the first vertical locking hole is arranged in the first abutting block 7 and the second abutting block 15, and the second vertical locking hole corresponding to the first vertical locking hole is arranged in the mounting rod 8, so as to prevent the mounting rod from being separated from the support 9.

[0035] In the embodiment 3, the horizontal rod 33 is provided with a plurality of clamping grooves along the length direction, so as to mount the fall arrestor, and to adapt to the water turbine of different sizes.

[0036] The support block 4 is abutted to form the support table 1 during installation, the support table 1 supports the support 9 and the mounting seat 10, one end of the support block 4 is provided with the connecting block 5, the other end of the support block 4 is provided with the connecting groove 6, the connecting groove 6 is abutted with the connecting block 5 to realize the abutment, the first abutting block 7 and the second abutting block 15 at both ends of the upper guide rail 3 of the support rod 2 form the abutment when the support block 4 is connected, the mounting rod 8 can be fixed through the first positioning hole 17 and the second positioning hole 18, and the support 9 is further installed. The mounting seat 10 rotatable relative to the support 9 is arranged on the support 9, the telescopic rod is arranged on the mounting seat, and the placing rack is arranged below the telescopic rod, so as to reduce the placing of the maintenance tools, free the hands of the workers, reduce the possibility of tool falling, and improve the safety. The fall arrestor 14 is arranged on the mounting seat 10, so as to prevent the workers from falling during maintenance, and improve the safety. The maintenance personnel can rotate the mounting seat 10 relative to the support 9 during maintenance, so as to adjust the maintenance position, and the workers do not need to frequently climb up and down to adjust the position or need the cooperation of colleagues. The pawl 29 moves towards the jack 30 when the maintenance personnel moves, so as to realize the step adjustment of the position, and the reliability is good.

Claims

1. A device for overhauling a hydraulic turbine of a pumped storage power plant, characterized in that, The utility model provides a support platform (1) is composed of a plurality of groups of fan ring support blocks (4), the upper end of support block (4) is equipped with support rod (2), the top of support rod (2) is equipped with guide rail (3), one end of support block (4) is equipped with connecting block (5), the other side of support block (4) is equipped with the connecting groove (6) corresponding with connecting block (5), one end of guide rail (3) is equipped with first docking block (7), the other end of guide rail (3) is equipped with the second docking block (15) corresponding with first docking block (7), the installation rod (8) is equipped in first docking block (7) and second docking block (15), the installation rod (8) is installed with support (9), the upper side of support (9) is equipped with the mounting seat (10) rotatable to support (9) through ratchet disc (16), the mounting seat (10) is equipped with the telescopic rod (12) perpendicular to mounting seat (10), the lower side of telescopic rod (12) is equipped with placing rack (13), the mounting seat (10) is equipped with the anti-falling device (14), the first docking block (7) is the first docking block of convex letter, the convex part of first docking block (7) is equipped with the first positioning hole (17) corresponding with installation rod (8), the second docking block (15) is equipped with the second positioning hole (18) corresponding with first positioning hole (17), the telescopic rod (12) includes inner rod (19), the outer rod (20) movable relative to inner rod (19) is equipped outside inner rod (19), the locking mechanism is equipped in inner rod (19), the locking mechanism includes the fixed block (21) of the middle part of one end of inner rod (19), the guide rod (22) is equipped on both sides of fixed block (21), the spring (23) is equipped outside guide rod (22), the lock tongue (24) is equipped at the end of spring (23), the adjusting rod (25) is equipped in the middle part of the other end of inner rod (19), the pull rope (26) is connected with lock tongue (24) and is equipped at the end of adjusting rod (25), the guide block (28) is equipped outside adjusting rod (25), the outer rod (20) is equipped with the lock hole (27) corresponding with lock tongue (24).

2. The pumped storage power plant hydraulic turbine overhauling device according to claim 1, characterized in that: The ratchet disc (16) includes the ratchet wheel (36) outside mounting seat (10) and the telescopic pawl (29) installed on support (9), the rear side of pawl (29) is equipped with the top rod (30).

3. The pumped storage power plant hydraulic turbine overhauling device according to claim 2, characterized in that: The rear side of pawl (29) is equipped with the sliding slot (31) corresponding with top rod (30).

4. The pumped storage power plant hydraulic turbine overhauling device according to claim 1, characterized in that: The mounting seat (10) includes the middle disc (32), the mounting disc (35) for installing ratchet wheel (36) is equipped under disc (32), the cross bar (33) corresponding with the number of support block (4) is equipped outside disc (32), the clamping block (34) corresponding with guide rail (3) is equipped at the end of cross bar (33).

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