Supporting structure of runner chamber of water-turbine generator set

Abstract

The utility model discloses a supporting structure of a runner chamber of a water-turbine generator set. The supporting structure comprises a runner chamber body, the reinforcing assembly comprises an arc-shaped protective frame, a bearing plate, a first through hole, a first fixing screw and a first nut; two arc-shaped protection frames are arranged on the two sides of the runner chamber body, bearing plates are fixedly connected to the two sides of each arc-shaped protection frame, first through holes are formed in the bearing plates, first fixing screws are inserted between the first through holes in a penetrating mode, and first nuts are connected to the first fixing screws. The problems that an existing runner chamber protection structure is insufficient in design strength and thin in material, consequently, the running vibration value of the runner chamber is increased, the runner chamber is prone to cracking, serious potential safety hazards exist, and safe and stable running of a power plant is threatened are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of runner chambers, in particular to a supporting structure of a runner chamber of a water turbine generator set. Background Art

[0002] The runner chamber refers to the hydraulic passage formed by connecting the bottom ring and the tailwater pipe in axial flow and diagonal flow turbines, and forming an appropriate gap with the outer edge of the runner blades.

[0003] However, it still has the following disadvantages in actual use:

[0004] The existing turbine chamber protection structure is not designed with sufficient strength and uses thin materials, which results in a larger vibration value during turbine chamber operation, which can easily lead to cracks in the turbine chamber, posing a serious safety hazard and threatening the safe and stable operation of the power plant. Utility Model Content

[0005] The purpose of the utility model is to provide a support structure for the runner chamber of a hydro-turbine generator set, so as to solve the problem raised in the above-mentioned background technology that the existing runner chamber protection structure is not designed with sufficient strength and uses thin materials, which leads to a larger vibration value during the operation of the runner chamber, which easily leads to cracks in the runner chamber, and thus there are serious safety hazards, threatening the safe and stable operation of the power plant.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a support structure of a runner chamber of a hydro-generator set, comprising:

[0008] The rotor chamber body;

[0009] A reinforcement component, the reinforcement component comprising an arc-shaped protective frame, a receiving plate, a first through hole, a first fixing screw and a first nut;

[0010] Arc-shaped protective frames are provided on both sides of the wheel chamber body, and there are two arc-shaped protective frames in total. The arc-shaped protective frames are fixedly connected to a receiving plate on both sides, and a first through hole is provided on the receiving plate. A first fixing screw is inserted between the first through holes, and a first nut is connected to the first fixing screw.

[0011] Furthermore, the diameter of the arc-shaped protection frame is equal to the outer circle diameter of the wheel chamber body.

[0012] Further, it also includes an adjustment component;

[0013] The adjustment assembly includes a limit plate, a rotating block and a metal rod;

[0014] The two sides of the rear part of the arc-shaped protection frame are fixedly connected to the limiting plates, the limiting plates are movably connected to the rotating blocks, and the rear part of the rotating blocks is fixedly connected to the metal rod.

[0015] Furthermore, the length of the limiting plate is greater than the length of the rotating block, and the front end of the rotating block is arc-shaped.

[0016] Furthermore, the adjustment assembly further includes a second through hole, a third through hole, a butterfly screw and a second nut;

[0017] A second through hole is provided in the middle of the limiting plate, a third through hole is provided in the middle of the rotating block, a butterfly screw is inserted between the second through hole and the third through hole, and a second nut is connected to the butterfly screw.

[0018] Furthermore, the adjustment assembly further includes a rectangular plate, a fourth through hole and a second fixing screw;

[0019] The bottom of the metal rod is fixedly connected to a rectangular plate, four corners of the rectangular plate are provided with fourth through holes, and the middle of the fourth through hole is inserted with a second fixing screw.

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] The utility model is provided with a pair of arc-shaped protection frames, and receiving plates are fixedly connected on both sides of the arc-shaped protection frames, a first through hole is provided on the receiving plate, and a first fixing screw is inserted between the first through holes, and a first nut is connected to the first fixing screw. The above components are used in coordination to achieve sufficient annular reinforcement of the runner chamber body, and the influence of the running vibration of the runner chamber body can be reduced, thereby effectively avoiding cracks in the runner chamber body;

[0022] Based on the above beneficial effects, limit plates are fixedly connected on both sides of the rear part of the arc-shaped protective frame, rotating blocks are movably connected between the limit plates, and a metal rod is fixedly connected to the rear part of the rotating block. The rotating block can rotate between the limit plates, thereby driving the metal rod to rotate, so that it can be adjusted accordingly according to the installation environment of the wheel chamber body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is an overall schematic diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the installation of the arc-shaped protection frame of the utility model;

[0026] Figure 3This is a schematic diagram of the connection of the rotating block of the utility model;

[0027] Figure 4 This is a schematic diagram of the metal rod connection of the utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 101. The main body of the runner chamber;

[0030] 201, arc-shaped protective frame; 202, receiving plate; 203, first through hole; 204, first fixing screw; 205, first nut;

[0031] 301, limit plate; 302, rotating block; 303, metal rod; 304, second through hole; 305, third through hole; 306, butterfly screw; 307, second nut; 308, rectangular plate; 309, fourth through hole; 3010, second fixing screw. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0034] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] See also Figure 1-4 As shown, this embodiment is a support structure of a runner chamber of a hydro-turbine generator set, comprising:

[0036] The rotor chamber body 101;

[0037] A reinforcement component, the reinforcement component includes an arc-shaped protection frame 201, a receiving plate 202, a first through hole 203, a first fixing screw 204 and a first nut 205;

[0038] Arc-shaped protection frames 201 are provided on both sides of the rotor chamber body 101, and there are two arc-shaped protection frames 201 in total. The arc-shaped protection frames 201 are fixedly connected to the receiving plates 202 on both sides. The receiving plates 202 are provided with first through holes 203. First fixing screws 204 are inserted between the first through holes 203, and the first fixing screws 204 are connected to the first nuts 205.

[0039] The connection between the two arc-shaped protection frames 201 can form an annular reinforcement for the wheel chamber body 101. With the cooperation of the first fixing screw 204, the first through hole 203 and the first nut 205, the arc-shaped protection frames 201 can be installed and disassembled.

[0040] The diameter of the arc-shaped protection frame 201 is equal to the outer diameter of the wheel chamber body 101;

[0041] The size setting of the above components can ensure that the inner wall of the arc-shaped protection frame 201 fits the runner chamber body 101;

[0042] Working principle: two arc-shaped protection frames 201 are respectively placed around the two sides of the wheel chamber body 101, and then the first fixing screw 204 is inserted into the first through hole 203, and then the first nut 205 is tightened on the first fixing screw 204;

[0043] This step can fully reinforce the wheel chamber body, reduce the impact of the running vibration of the wheel chamber body, and avoid cracks in the wheel chamber body.

[0044] See also Figure 1-4 As shown, this embodiment is based on the above embodiment 1 and further includes an adjustment component;

[0045] The adjustment assembly includes a limit plate 301, a rotating block 302 and a metal rod 303;

[0046] The two sides of the rear of the arc-shaped protection frame 201 are fixedly connected to the limit plates 301, the limit plates 301 are movably connected to the rotating blocks 302, and the rear of the rotating blocks 302 is fixedly connected to the metal rod 303;

[0047] The setting of the limiting plate 301 can limit the rotating block 302 in the horizontal direction;

[0048] The length of the limiting plate 301 is greater than that of the rotating block 302, and the front end of the rotating block 302 is arc-shaped;

[0049] The size and shape of the above components can ensure that the limit plate 301 and the arc-shaped protection frame 201 will not affect the rotation of the rotating block 302;

[0050] The adjustment assembly further includes a second through hole 304, a third through hole 305, a butterfly screw 306 and a second nut 307;

[0051] A second through hole 304 is formed in the middle of the limiting plate 301, a third through hole 305 is formed in the middle of the rotating block 302, a butterfly screw 306 is inserted between the second through hole 304 and the third through hole 305, and a second nut 307 is connected to the butterfly screw 306;

[0052] The above components are used in coordination to achieve the fixation of the rotating block 302 after rotation;

[0053] The adjustment assembly further includes a rectangular plate 308, a fourth through hole 309 and a second fixing screw 3010;

[0054] The bottom of the metal rod 303 is fixedly connected to the rectangular plate 308. The rectangular plate 308 has four fourth through holes 309 at four corners. The middle of the fourth through hole 309 is inserted with a second fixing screw 3010.

[0055] The above components are used in conjunction with each other to achieve fixed connection of the metal rod 303;

[0056] Working principle: insert the second fixing screw 3010 into the fourth through hole 309 and screw it into the ground at the same time to install the rectangular plate 308. Then, with the butterfly screw 306 as the central axis, the position of the runner chamber body 101 together with the arc-shaped protection frame 201 can be adjusted with the cooperation of the rotating block 302. When adjusted to a suitable angle, tighten the second nut 307.

[0057] This step can be adjusted accordingly according to the installation environment of the wheel chamber body.

[0058] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A support structure for a turbine generator runner chamber, characterized in that: include: The rotor chamber body (101); A reinforcement component, the reinforcement component comprising an arc-shaped protection frame (201), a receiving plate (202), a first through hole (203), a first fixing screw (204) and a first nut (205); Arc-shaped protective frames (201) are provided on both sides of the wheel chamber body (101), and there are two arc-shaped protective frames (201) in total. Both sides of the arc-shaped protective frames (201) are fixedly connected to a receiving plate (202), and a first through hole (203) is provided on the receiving plate (202). A first fixing screw (204) is inserted between the first through holes (203), and a first nut (205) is connected to the first fixing screw (204).

2. The support structure of the runner chamber of a hydro-generator set according to claim 1, characterized in that: The diameter of the arc-shaped protection frame (201) is equal to the outer diameter of the wheel chamber body (101).

3. The support structure of the runner chamber of a hydro-turbine generator set according to claim 1, characterized in that: Also included are adjustment components; The adjustment component comprises a limit plate (301), a rotating block (302) and a metal rod (303); The two sides of the rear of the arc-shaped protection frame (201) are fixedly connected to limit plates (301), the limit plates (301) are movably connected to a rotating block (302), and the rear of the rotating block (302) is fixedly connected to a metal rod (303).

4. The support structure of the runner chamber of a hydro-turbine generator set according to claim 3, characterized in that: The length of the limiting plate (301) is greater than the length of the rotating block (302), and the front end of the rotating block (302) is arc-shaped.

5. The support structure of the runner chamber of a hydro-turbine generator set according to claim 3, characterized in that: The adjustment assembly further includes a second through hole (304), a third through hole (305), a butterfly screw (306) and a second nut (307); A second through hole (304) is provided in the middle of the limiting plate (301), a third through hole (305) is provided in the middle of the rotating block (302), a butterfly screw (306) is inserted between the second through hole (304) and the third through hole (305), and a second nut (307) is connected to the butterfly screw (306).

6. The support structure of the runner chamber of a hydro-turbine generator set according to claim 3, characterized in that: The adjustment assembly further comprises a rectangular plate (308), a fourth through hole (309) and a second fixing screw (3010); The bottom of the metal rod (303) is fixedly connected to a rectangular plate (308), four corners of the rectangular plate (308) are provided with fourth through holes (309), and a second fixing screw (3010) is inserted through the middle of the fourth through hole (309).

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