CN216342542U

CN216342542U - Bulb tubular turbine generator set runner chamber adjusting device

Info

Publication number: CN216342542U
Application number: CN202122954610.3U
Authority: CN
Inventors: 韦宗立; 韦嘉亮; 李昊明; 郑慧聪; 王海锋
Original assignee: Guangxi Zhuojie Power Engineering Maintenance Co ltd
Current assignee: Guangxi Zhuojie Power Engineering Maintenance Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-19
Anticipated expiration: 2031-11-29

Abstract

The utility model belongs to the technical field of hydropower station mechanical engineering, and particularly relates to a rotating wheel chamber adjusting device of a bulb tubular turbine generator set, which comprises: a pin shaft portion having a fixing bolt hole formed at one end thereof in an axial direction; the adjusting structure can vertically press the front of one end of the pin shaft part provided with the fixing bolt hole; and a connecting portion fixedly connecting the pin shaft portion and the adjustment structure. Based on the rotating wheel chamber adjusting device of the bulb through-flow type water turbine generator set, the safety and the high efficiency of the rotating wheel chamber maintenance operation can be guaranteed, and the equipment maintenance quality and the equipment reliability are improved. And a convenient and reliable tool is also provided for the maintenance operation of the runner chamber of other hydroelectric generating set type sets.

Description

Bulb tubular turbine generator set runner chamber adjusting device

Technical Field

The utility model belongs to the technical field of hydropower station mechanical engineering, and particularly relates to a rotating wheel chamber adjusting device of a bulb tubular turbine generator set.

Background

The runner chamber is an important flow guiding and water sealing part of the bulb tubular unit and has heavier weight. The runner chamber is composed of an upper lobe and a lower lobe. The runner chamber adopts a thick-wall structure and has enough rigidity and strength. The inner surface of a runner chamber around the runner is processed into a spherical surface, the gap between the inner wall of the runner chamber and the outer edge of a runner blade is uniform, the gap value meets the design requirement, and the surface roughness of the inner wall of the runner chamber is not more than Ra12.5. The split joint surface of the runner chamber adopts flange connection and has reliable leakage-stopping measures. The runner chamber and the external water distribution ring are connected by flanges, and the joint surface has reliable leakage-stopping measures.

Because the runner chamber of the bulb through-flow type water turbine generator set is formed by combining an upper lobe and a lower lobe, when the runner chamber is installed back, the upper lobe of the runner chamber is deformed under the influence of the stress and the dead weight of a steel wire rope, the runner chamber is dislocated by the upper lobe and the lower lobe of the connecting flange, pins and bolts cannot be installed in an aligned mode, or the connecting flange is damaged in a sealing dislocation mode due to forced installation, and the like. Therefore, it is necessary to solve the problem to ensure the safety and high efficiency of the maintenance work of the runner chamber and to improve the quality of the equipment maintenance.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a rotating wheel chamber adjusting device of a bulb tubular turbine generator set. By using the runner chamber adjusting device of the bulb through-flow type water turbine generator set provided by the utility model in the process of mounting the upper lobe and the lower lobe of the runner chamber, the adjustment of the flange surfaces of the upper lobe and the lower lobe of the runner chamber is finished, the flanges have no staggered openings, and meanwhile, the sealing completeness of the flange surfaces of the upper lobe and the lower lobe of the runner chamber is ensured. After the unit is operated, the unit runner chamber has small vibration and no water leakage phenomenon. The safe and efficient maintenance operation of the runner chamber is practically realized, the maintenance quality of the equipment is improved, and the maintenance quality and the reliability of the equipment are improved.

The technical scheme provided by the utility model is as follows:

a bulb through-flow type hydroelectric generating set runner chamber adjusting device comprises:

a pin shaft portion having a fixing bolt hole formed at one end thereof in an axial direction;

the adjusting structure can vertically press the front of one end of the pin shaft part provided with the fixing bolt hole;

and a connecting portion fixedly connecting the pin shaft portion and the adjustment structure.

Based on above-mentioned technical scheme, in the round pin axle disect insertion runner room lower lamella flange bolt hole, easy to assemble. And the bolt fixing holes are reused, so that the bolts can be installed in the bolt holes of the lower valve of the runner chamber and then tightly propped against the bolt holes, and the device is firmly fixed at the outer edges of the flanges of the upper valve and the lower valve of the runner chamber, so that the device is effectively prevented from falling.

Specifically, the adjusting structure comprises an all-threaded bolt perpendicular to the pin shaft portion, the adjusting nut is in threaded connection with the adjusting bolt, and the adjusting nut is fixedly connected with the connecting portion.

Based on above-mentioned technical scheme, realize the precession and the back-out of full silk bolt through rotatory full silk bolt, realization that can be convenient is pressed to runner room upper lamella flange outer fringe contact. And further adjusting the full-thread screw according to the staggered opening amount of the flange to align the upper and lower valve flanges so as to install the upper and lower valve pins and bolts of the runner chamber. Thereby achieving the purpose of adjusting the flanges of the upper and the lower petals of the runner chamber.

Specifically, the fixing bolt hole is located at a first end face of the pin shaft portion, and a distance between an axis of the all-wire bolt and the first end face is larger than a radius of the all-wire bolt.

Based on above-mentioned technical scheme, the dislocation of realization full silk bolt and round pin axial region that can be convenient to correspond the position of runner room upper and lower lamella flange respectively.

Further, the axis of the all-wire bolt intersects with the axis of the pin shaft portion.

Based on the technical scheme, the upper valve flange and the lower valve flange can be fully aligned.

Specifically, the connecting portion is L-shaped, one end surface of the connecting portion is fixedly connected to the outer wall of the adjusting nut, and the other end surface of the connecting portion is fixedly connected to the outer wall of the pin shaft portion.

Based on above-mentioned technical scheme, can make whole device structure succinct to can ensure the dislocation set of full silk bolt and pintle section of thick bamboo.

Based on the rotating wheel chamber adjusting device of the bulb through-flow type water turbine generator set, the safety and the high efficiency of the rotating wheel chamber maintenance operation can be guaranteed, and the equipment maintenance quality and the equipment reliability are improved. And a convenient and reliable tool is also provided for the maintenance operation of the runner chamber of other hydroelectric generating set type sets.

Drawings

Fig. 1 is a front view of a runner chamber adjusting device of a bulb through-flow type water turbine generator set provided by the utility model.

Fig. 2 is a top view of the rotating wheel chamber adjusting device of the bulb tubular turbine generator set provided by the utility model.

Fig. 3 is a perspective view of the runner chamber adjusting device of the bulb tubular turbine generator set provided by the utility model.

In fig. 1, 2 and 3, the structures represented by the reference numerals are listed as follows:

1. a pin shaft portion; 2. fixing bolt holes; 3. a connecting portion; 4. a full-thread bolt; 5. adjusting the nut; 6. a first end surface.

Detailed Description

The principles and features of this invention are described below in conjunction with examples which are set forth to illustrate, but are not to be construed to limit the scope of the utility model.

It will be understood that when an element or component is referred to as being "connected," "positioned" or "coupled" to another element or component, it can be directly on the other element or component or intervening elements or components may also be present. The terms "left", "right", "upper", "lower" and the like as used herein are for illustrative purposes only.

In one embodiment, as shown in fig. 1, 2 and 3, the adjustment device for the runner chamber of the bulb tubular turbine generator set comprises: a pin shaft portion 1 having a fixing bolt hole 2 formed at one end thereof in an axial direction; an adjusting structure which can vertically press the front of one end of the pin shaft part 1 provided with the fixing bolt hole 2; and a connecting portion 3 fixedly connecting the pin shaft portion 1 and the adjustment structure. Based on this technical scheme, the round pin axle can the disect insertion runner room lower lamella flange bolt hole in, easy to assemble. And the bolt fixing holes are reused, so that the bolts can be installed in the bolt holes of the lower valve of the runner chamber and then tightly propped against the bolt holes, and the device is firmly fixed at the outer edges of the flanges of the upper valve and the lower valve of the runner chamber, so that the device is effectively prevented from falling.

In one embodiment, as shown in fig. 1, 2 and 3, the adjusting structure includes a full-length bolt 4 disposed perpendicular to the pin portion 1, and an adjusting nut 5 is screwed thereto, and the adjusting nut 5 is fixedly connected to the connecting portion 3. Based on this technical scheme, realize the precession and the back-out of full silk bolt through rotatory full silk bolt, realization that can be convenient is pressed to runner room upper lamella flange outer fringe contact. And further adjusting the full-thread screw according to the staggered opening amount of the flange to align the upper and lower valve flanges so as to install the upper and lower valve pins and bolts of the runner chamber. Thereby achieving the purpose of adjusting the flanges of the upper and the lower petals of the runner chamber.

In one embodiment, as shown in fig. 1, 2, and 3, the fixing bolt hole 2 is located at the first end face 6 of the pin shaft portion 1, and the distance between the axis of the all-wire bolt 4 and the first end face 6 is greater than the radius of the all-wire bolt 4. Based on this technical scheme, the dislocation of realization full silk bolt and round pin axial region that can be convenient to correspond the position of runner room upper and lower lamella flange respectively.

In one implementation, as shown in fig. 1, 2, and 3, the axis of the all-wire bolt 4 intersects the axis of the pin portion 1. Based on the technical scheme, the upper valve flange and the lower valve flange can be fully aligned.

In one embodiment, as shown in fig. 1, 2 and 3, the connecting portion 3 is L-shaped, and has one end surface fixedly connected to the outer wall of the adjusting nut 5 and the other end surface fixedly connected to the outer wall of the pin shaft portion 1. Based on this technical scheme, can make whole device structure succinct to can ensure the dislocation set of full silk bolt and pintle section of thick bamboo.

The foregoing is merely a preferred embodiment of this invention and is not intended to limit the utility model in any manner; those skilled in the art can readily practice the utility model as shown and described in the drawings and detailed description herein; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the utility model as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a bulb through-flow type hydroelectric set runner room adjusting device which characterized in that includes:

a pin shaft portion (1) having a fixing bolt hole (2) formed at one end thereof in the axial direction;

an adjusting structure which can vertically press the front of one end of the pin shaft part (1) provided with the fixing bolt hole (2);

and a connecting part (3) fixedly connecting the pin shaft part (1) and the adjusting structure.

2. The rotating wheel chamber adjusting device of the bulb tubular turbine generator set according to claim 1, characterized in that: the adjusting structure comprises a full-thread bolt (4) perpendicular to the pin shaft part (1), the full-thread bolt is in threaded connection with an adjusting nut (5), and the adjusting nut (5) is fixedly connected with the connecting part (3).

3. The rotating wheel chamber adjusting device of the bulb tubular turbine generator set according to claim 2, characterized in that: the fixing bolt hole (2) is located on a first end face (6) of the pin shaft portion (1), and the distance between the axis of the all-wire bolt (4) and the first end face (6) is larger than the radius of the all-wire bolt (4).

4. The rotating wheel chamber adjusting device of the bulb tubular turbine generator set according to claim 2, characterized in that: the axis of the all-wire bolt (4) intersects with the axis of the pin shaft part (1).

5. The rotating wheel chamber adjusting device of the bulb through-flow type water turbine generator set according to claim 4, wherein the connecting portion (3) is L-shaped, one end surface of the connecting portion is fixedly connected with the outer wall of the adjusting nut (5), and the other end surface of the connecting portion is fixedly connected with the outer wall of the pin shaft portion (1).