Buffer device for pumped storage power station unit

Abstract

The utility model provides a buffer device for a pumped storage power station unit, which comprises a cross beam, a bearing beam is arranged above the cross beam, the upper surface of the bearing beam is fixedly connected with a connecting plate, the two sides of the surface of one side of the cross beam are fixedly connected with mounting plates, and one side of each mounting plate is fixedly connected with a limiting piece. Through the arrangement of the racks, the reinforcing springs, the reset springs and the damping viscometers, vibration generated by the unit in the operation process is prevented from being generated by mutual stretching of the reinforcing springs and the reset springs and hindering of the damping viscometers, and the vibration is prevented from being generated by the damping viscometers. The problem that in the prior art, a top cover, a rotating wheel, a guide vane and the like serve as important components of the pump turbine and are all installed in a turbine pit of the pump turbine, and therefore vibration is rapidly consumed and stopped is solved. However, the operation stability of the unit is influenced when vibration occurs.

Description

TECHNICAL FIELD

[0001] The utility model relates to the buffer protection field, specifically, relate to the buffer device for pumped storage power station unit. BACKGROUND

[0002] The production, transportation and use of electric power occur simultaneously, and generally cannot be stored, while the demand of electric power load is changeable in a moment. Within a day, the demand of electric power is higher in the daytime and the first half of the night; the demand of electric power drops greatly in the second half of the night, and sometimes is only half or even less than the peak. In view of this situation, the power generation equipment needs to be fully generated during the load peak period, and needs to be low in output or even needs to be temporarily closed during the trough period. In order to coordinate the use of the related power generation equipment according to the demand of electric power, a series of measures need to be taken.

[0003] The existing large pumped storage unit generally adopts vertical shaft arrangement, and the generator motor is located above the pump turbine, and the two are connected through the large shaft flange; the top cover, runner and guide vane and the like are important components of the pump turbine, and are all installed in the pit of the pump turbine. In order to improve the operation stability of the unit, a device with buffering and damping effect needs to be designed. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a buffer device for pumped storage power station unit, so as to improve the stability of the unit operation.

[0005] In order to realize the above-mentioned purpose of the utility model, the utility model provides the following technical scheme:

[0006] The buffer device for pumped storage power station unit, comprising a crossbeam, the upper side of the crossbeam is provided with a bearing beam, the upper surface of the bearing beam is fixedly connected with a connecting plate, the two sides of the side surface of the crossbeam are both fixedly connected with a mounting plate, one side of the mounting plate is fixedly connected with a limiting piece, the two sides of the upper surface of the crossbeam are both fixedly connected with a damping viscous damper, the inside of the limiting piece is slidably connected with a rack, the bottom end of the rack is fixedly connected with a bottom column, the bottom end of the bottom column is slidably connected with a sleeve, the inner bottom wall of the sleeve is fixedly connected with a return spring, and the top end of the return spring is fixedly connected with the bottom end of the bottom column.

[0007] As the preferred technical scheme of the utility model, the number of the crossbeam and the bearing beam is two, and the two sides of the lower surface of the crossbeam are both fixedly connected with a bottom plate.

[0008] As the preferred technical scheme of the utility model, one side of the limiting piece is provided with a clamping groove, and a gear is arranged at the clamping groove, the gear is movably clamped on the limiting piece, and the gear is connected with the rack in meshing.

[0009] As the utility model discloses preferred technical scheme, four gear pairs are divided into a group, and the gear of each group is fixedly connected with a rotating rod, and the middle part of the rotating rod is connected with a traction rope.

[0010] As the utility model discloses preferred technical scheme, the bottom end of the traction rope is connected with a slide column, and the bottom end of the slide column is slidably connected with a sleeve.

[0011] As the utility model discloses preferred technical scheme, the inner bottom wall of the sleeve is fixedly connected with a reinforcing spring, and the top end of the reinforcing spring is fixedly connected with the bottom end of the slide column.

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

[0013] In the scheme of the utility model,

[0014] Through the rack, gear, rotating rod, traction rope, reinforcing spring, return spring and damping viscous device, the vibration generated during the operation of the unit is further consumed and stopped through the mutual stretching of the reinforcing spring and return spring and the hindering of the damping viscous device, so that the normal operation and safety of the unit equipment are protected, the operation stability of the unit is improved, and the problem that the top cover, runner and guide vane as important components of the water pump water turbine are all installed in the pit of the water pump water turbine, but affect the operation stability of the unit when vibrating is solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The overall structure schematic view of the buffer device for the pumped storage power station unit is provided in the utility model.

[0016] Figure 2 The overall structure schematic view of the buffer device for the pumped storage power station unit is provided in the utility model.

[0017] Figure 3 The partial structure schematic view of the buffer device for the pumped storage power station unit is provided in the utility model.

[0018] Figure 4 The disassembly structure schematic view of the slide column and sleeve of the buffer device for the pumped storage power station unit is provided in the utility model.

[0019] Figure 5 The disassembly structure schematic view of the slide column and sleeve of the buffer device for the pumped storage power station unit is provided in the utility model.

[0020] Indicated in the figure: 1, cross beam; 2, bearing beam; 3, connecting plate; 4, mounting plate; 5, limiting piece; 6, damping viscous damper; 7, rack; 8, bottom column; 9, sleeve; 10, return spring; 11, bottom plate; 12, gear; 13, rotating rod; 14, traction rope; 15, sliding column; 16, sleeve; 17, reinforcing spring. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.

[0022] Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but merely represents some embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0023] It should be noted that the embodiments in the present application and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0024] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0025] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product is usually placed, or the orientation or position relationship commonly understood by those skilled in the art, such terms are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0026] Please refer to Figures 1-5The utility model provides a buffer device for pumped storage power station unit, including crossbeam 1, the top of crossbeam 1 is equipped with bearing beam 2, the upper surface of bearing beam 2 is fixedly connected with connecting plate 3, the both sides of crossbeam 1 one side surface are all fixedly connected with mounting plate 4, the one side of mounting plate 4 is fixedly connected with limiting piece 5, the both sides of crossbeam 1 upper surface are all fixedly connected with damping viscous damper 6, limiting piece 5's inside is connected with rack 7 slidingly, the bottom of rack 7 is fixedly connected with bottom column 8, and the bottom of bottom column 8 is connected with sleeve 9 slidingly, the inner bottom wall of sleeve 9 is fixedly connected with return spring 10, and the top of return spring 10 is fixedly connected with the bottom of bottom column 8.

[0027] The number of crossbeam 1 and bearing beam 2 is two, and the both sides of the lower surface of the two crossbeams 1 are fixedly connected with bottom plate 11, the one side of limiting piece 5 is provided with clamping groove, and gear 12 is arranged at the clamping groove, gear 12 is movably connected to limiting piece 5, gear 12 is connected with rack 7, four gears 12 are divided into a group, gear 12 is fixedly connected between every group, pull rope 14 is connected to the middle of rotating rod 13, pull rope 14 is connected to the bottom of slide column 15, slide column 15 is connected to sleeve 16 slidingly, the inner bottom wall of sleeve 16 is fixedly connected with reinforcing spring 17, and the top of reinforcing spring 17 is fixedly connected with the bottom of slide column 15.

[0028] The above embodiments are only used to illustrate the utility model and not limit the technical solutions described in the utility model, although the utility model has been described in detail with reference to the above-mentioned various embodiments, but the utility model is not limited to the above-mentioned specific implementation, so any modification or equivalent replacement to the utility model, and all technical solutions and improvements without departing from the spirit and scope of the invention, all are covered in the scope of claims of the utility model.

Claims

1. A damper device for pumped storage power plant units, comprising a crossbeam (1), characterized in that: The upper side of the crossbeam (1) is provided with a bearing beam (2), the upper surface of the bearing beam (2) is fixedly connected with a connecting plate (3), the two sides of the side surface of the crossbeam (1) are fixedly connected with mounting plates (4), one side of the mounting plate (4) is fixedly connected with a limiting piece (5), the upper surface of the crossbeam (1) is fixedly connected with damping viscous devices (6), the inside of the limiting piece (5) is slidably connected with a rack (7), the bottom end of the rack (7) is fixedly connected with a bottom column (8), the bottom end of the bottom column (8) is slidably connected with a sleeve (9), the inner bottom wall of the sleeve (9) is fixedly connected with a return spring (10), the top end of the return spring (10) is fixedly connected with the bottom end of the bottom column (8).

2. The damper device for a pumped storage power plant unit according to claim 1, characterized by, The number of the crossbeam (1) and the bearing beam (2) is two, the lower surface of the two crossbeams (1) is fixedly connected with bottom plates (11).

3. The damper device for a pumped storage power plant unit according to claim 1, characterized by, The limiting piece (5) is provided with a clamping groove on one side, and a gear (12) is arranged at the clamping groove, the gear (12) is movably connected with the limiting piece (5), and the gear (12) is meshingly connected with the rack (7).

4. The damper device for a pumped storage power plant unit according to claim 3, characterized by The four gears (12) are divided into two groups, each group of the gears (12) is fixedly connected with a rotating rod (13), and the middle part of the rotating rod (13) is connected with a traction rope (14).

5. The damper device for a pumped storage power plant unit according to claim 4, characterized by, The bottom end of the traction rope (14) is connected with a sliding column (15), and the bottom end of the sliding column (15) is slidably connected with a sleeve (16).

6. The damper device for a pumped storage power plant unit according to claim 5, characterized by The inner bottom wall of the sleeve (16) is fixedly connected with a reinforcing spring (17), and the top end of the reinforcing spring (17) is fixedly connected with the bottom end of the sliding column (15).

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