CN201461198U - Control loop structure for small vertical water turbine - Google Patents

Abstract

The utility model relates to a control ring structure for a small vertical water turbine unit, which includes a control ring body, and is characterized in that: the control ring body is symmetrically welded with connection blocks, and the connection block is processed with connection holes along the axis direction of the control ring body . Therefore, the structure of the utility model is extremely simplified. Compared with the traditional structure, at least 24 welding seams have been reduced, which not only saves processing time, but also saves the use of materials, speeds up the production progress, reduces the cost of the workpiece, and the height of the control ring is higher than the traditional one. The structure is low, and the rigidity is good, and the use is safe and reliable.

Description

Control loop structure for small vertical water turbine

technical field

The utility model belongs to the technical field of water turbine power generation, in particular to a control ring structure for a small vertical water turbine unit.

Background technique

The control ring is an important part in the water guide mechanism of the turbine. It is an annular part used to transmit the force of the servomotor and rotate the guide vane through the transmission mechanism. Traditional control rings are steel plate welded structures. As shown in Figure 1, two frame structures are made on the upper part of the control ring body, and connection holes are processed on the frame structures. This frame structure is welded by at least 12 steel plates. Two servomotors are connected by a tie rod; the above-mentioned control ring structure is suitable for larger units, but it is more complicated to adopt this structure for smaller units (runner diameter D1≤4m), and the manufacturing is complicated and the cost is also high.

Contents of the invention

The utility model provides a control ring structure for a small vertical water turbine unit with simple structure, convenient manufacture, safety, reliability and low cost in order to solve the technical problems existing in the known technology.

The technical scheme that the utility model takes for solving the technical problem existing in the known technology is:

A control ring structure for a small vertical water turbine unit, including a control ring body, characterized in that: the control ring body is symmetrically welded with connection blocks, and the connection blocks are processed with connection holes along the axis of the control ring body.

The advantages and positive effects of the utility model are: because the utility model adopts the connection blocks directly symmetrically welded on the control ring body, the connection blocks are processed with connection holes along the axis direction of the control ring body. This makes the structure extremely simplified, reducing at least 24 welding seams, which not only saves processing time, but also saves the use of materials, improves the production schedule, and reduces the cost of the workpiece. The height of the control ring is lower than that of the traditional structure, and the rigidity is good. It is safe and reliable to use.

Description of drawings

Fig. 1 is a schematic diagram of an existing control loop structure;

Fig. 2 is a structural representation of the utility model;

Fig. 3 is a cross-sectional view of A-A in Fig. 2 .

In the figure: 1. Control ring body; 2. Connection block; 3. Connection hole.

Detailed ways

In order to further understand the invention content, characteristics and effects of the present utility model, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

Example:

Please refer to Figure 2 and Figure 3, a control ring structure for a small vertical water turbine unit, including a control ring body 1, a connecting block 2 is symmetrically welded on the control ring body 1, and the connecting block 2 is along the axis of the control ring body Processed connecting holes 3. The connecting block in this embodiment is replaced by round steel. During processing, it is only necessary to weld the round steel directly with the control ring body. The round steel is used as a connecting hole in the center hole. Therefore, this practical The new type makes the structure extremely simplified. Compared with the traditional structure, at least 24 welding seams are reduced, which not only saves the processing time, but also saves the use of materials, improves the production progress, reduces the cost of the workpiece, and the height of the control ring is lower than the traditional structure. , and good rigidity, safe and reliable to use.

In summary, the content of the present utility model is not limited to the above-mentioned embodiments, people of insight in the same field can easily propose other embodiments within the technical guidance of the present utility model, but such All embodiments are included within the scope of the present invention.

Claims (1)

1. a minitype vertical type water wheels unit control ring structure comprises the control ring body, it is characterized in that: be symmetrically welded with contiguous block on the described control ring body, contiguous block upper edge control ring body axis direction is processed with attachment hole.

Images