CN215057593U

CN215057593U - Variable stator blade operating device

Info

Publication number: CN215057593U
Application number: CN202121400143.3U
Authority: CN
Inventors: 崔良琼; 陆柳圆; 郑昌宏; 韩浩宇; 王楠楠
Original assignee: Hefei Changke Intelligent Technology Co ltd
Current assignee: Hefei Changke Intelligent Technology Co ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-12-07
Anticipated expiration: 2031-06-23

Abstract

The utility model discloses a variable stator blade operating means, including the machine casket, the machine casket inboard is provided with outer annular groove, the top of outer annular groove is provided with a plurality of rubber elasticity circle pieces, the inside a plurality of stator blade main parts that are provided with of machine casket, every a side end face and the nearly upper end of stator blade main part are provided with first rubber connecting block, the downside of first rubber connecting block and every the nearly lower extreme of a side end face of stator blade main part is provided with second rubber connecting block, every the nearly upper end of opposite side terminal surface of stator blade main part is provided with first connecting groove, the downside of first connecting groove and at every the nearly lower extreme of opposite side terminal surface of stator blade main part is provided with the second connecting groove, every the upside terminal surface of stator blade main part is provided with the outer ring piece, the concave part terminal surface of outer ring piece is provided with locating component. The utility model provides a quiet blade thermal expansion poor problem, but the convenience dismouting is maintained easy operation simultaneously.

Description

Variable stator blade operating device

Technical Field

The utility model relates to a relevant technical field of stationary blade installation specifically is a variable stationary blade operating means.

Background

The stationary blade is a stationary blade fixed to a diaphragm or a vane carrier ring. The stator vanes not only guide the steam flow in the steam turbine, but also accelerate the steam. The vanes in the steam chamber (nozzle chamber) are called nozzles and act as guide blades in the velocity stage, redirecting the steam flow to the next row of blades. In a reaction steam turbine, the vanes act as nozzles.

At present, the service effect of the prior stator blade is reduced due to the thermal expansion and contraction change generated in a long-term high-temperature environment, so that the service life of the prior stator blade is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a variable stator blade operating means to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a variable stationary blade operating device comprises a casing, wherein an outer ring groove is installed on the inner side of the casing, the side view angle of the outer ring groove is concave on two sides and convex in the middle, a plurality of rubber elastic round blocks are installed at the top end of the outer ring groove, a plurality of stationary blade bodies are installed inside the casing, a first rubber connecting block is installed on one side end surface and the upper end of each stationary blade body, a second rubber connecting block is installed on the lower side of the first rubber connecting block and the lower end of one side end surface of each stationary blade body, a first connecting groove is installed on the upper end of the other side end surface of each stationary blade body, a second connecting groove is installed on the lower side of the first connecting groove and the lower end of the other side end surface of each stationary blade body, an outer ring block is installed on the upper end surface of each stationary blade body, and the side view angle of the outer ring block is convex on two sides and concave in the middle, and a positioning assembly is arranged on the end face of the concave part of the outer ring block.

Preferably, the positioning assembly comprises a U-shaped positioning plate and an elastic connecting piece, the elastic connecting piece is fixedly welded on the lower end face of the U-shaped positioning plate, the lower end of the elastic connecting piece is fixedly welded on the end face of the concave part of the outer ring block, and a bolt connecting through hole is formed in the U-shaped positioning plate in a penetrating mode.

Preferably, the end face of the convex part of the outer ring groove is provided with a U-shaped positioning groove matched with the U-shaped positioning plate, and the bottom end of the U-shaped positioning groove is provided with a bolt connecting groove matched with the bolt connecting through hole.

Preferably, the first rubber connecting block and the second rubber connecting block mounted on the upper end face of the previous stationary blade body are matched with the first connecting groove and the second connecting groove mounted on the upper end face of the adjacent stationary blade body.

Preferably, the casing is of annular design.

Preferably, each of the stationary blade bodies is of a fan-shaped design.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses the outer annular groove that the annular machine casket inboard that sets up was equipped with, outer ring piece through the quiet leaf main part upper end of a plurality of fan-shaped designs makes up a plurality of quiet leaf main parts in proper order and inserts to annular machine casket in, because the outer annular groove of the concave middle convex in both sides of side visual angle and the outer ring piece phase-match connection of the convex middle concave in both sides of side visual angle to can guarantee a plurality of quiet leaf main parts and machine casket stability through locating component and be connected, once one of them quiet leaf main part damages when needing to be changed the maintenance, can separate the dismantlement through the fastening bolt of installation on the U type locating plate in the locating component, use cost is reduced;

2. the utility model discloses the outer annular groove top that still sets up simultaneously is provided with a plurality of rubber elasticity circles, can a plurality of fan-shaped stator blade main parts of elastic connection and annular machine casket, has solved the poor problem that causes of thermal expansion that the stator blade received in high temperature environment, has effectively improved the life of stator blade.

Drawings

FIG. 1 is a front view of a part of a variable stationary blade operating device according to the present invention;

FIG. 2 is a schematic side view of a casing of a variable stator blade handling device according to the present invention;

fig. 3 is an enlarged schematic view of a position a in fig. 1 of a variable stationary blade operating device according to the present invention.

In the figure: 1. a case; 2. an outer ring groove; 3. a rubber elastic round block; 4. a stationary blade body; 5. a first rubber connecting block; 6. a second rubber connecting block; 7. a first connecting groove; 8. a second connecting groove; 9. an outer ring block; 10. a positioning assembly; 101. a U-shaped positioning plate; 102. an elastic connecting member; 103. the bolt is connected with the through hole; 11. u-shaped constant head tank.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a variable stationary blade operating device comprises a casing 1, an outer ring groove 2 is installed on the inner side of the casing 1, the side view angle of the outer ring groove 2 is concave on two sides and convex in the middle, a plurality of rubber elastic round blocks 3 are installed on the top end of the outer ring groove 2, a plurality of stationary blade bodies 4 are installed inside the casing 1, a first rubber connecting block 5 is installed on one side end surface and the upper end near each stationary blade body 4, a second rubber connecting block 6 is installed on the lower side of the first rubber connecting block 5 and the lower end near one side end surface of each stationary blade body 4, a first connecting groove 7 is installed on the upper end near the other side end surface of each stationary blade body 4, a second connecting groove 8 is installed on the lower side of the first connecting groove 7 and the lower end near the other side end surface of each stationary blade body 4, an outer ring block 9 is installed on the upper end surface of each stationary blade body 4, and the side view angle of the outer ring block 9 is convex on two sides and concave in the middle, the concave end surface of the outer ring block 9 is provided with a positioning assembly 10.

The positioning assembly 10 comprises a U-shaped positioning plate 101 and an elastic connecting piece 102, the elastic connecting piece 102 is fixedly welded on the lower end face of the U-shaped positioning plate 101, the lower end of the elastic connecting piece 102 is fixedly welded on the end face of the concave part of the outer ring block 9, and a bolt connecting through hole 103 is formed in the U-shaped positioning plate 101 in a penetrating mode; the end face of the convex part of the outer ring groove 2 is provided with a U-shaped positioning groove 11 matched with the U-shaped positioning plate 101, and the bottom end of the U-shaped positioning groove 11 is provided with a bolt connecting groove matched with the bolt connecting through hole 103; the first rubber connecting block 5 and the second rubber connecting block 6 which are arranged on the end face of one side of the upper side of the previous static blade main body 4 are matched with the first connecting groove 7 and the second connecting groove 8 which are arranged on the end face of one side of the upper side of the adjacent static blade main body 4, so that the stable connection of the plurality of static blade main bodies 4 is facilitated; the casing 1 is designed in an annular shape; each stationary blade body 4 is of a fan-shaped design.

The working principle is as follows: when the utility model is used, the outer ring groove 2 with two concave sides and a convex middle part arranged at the inner side of the casing 1 and the outer ring block 9 with two convex sides and a concave middle part arranged at the top end of a plurality of static vane main bodies 4 are used for matching and combining the casing 1 and the static vane main bodies 4, then the bolt connecting through hole 103 on the U-shaped positioning plate 101 in the positioning component 10 arranged on the concave end surface of the outer ring block 9 and the bolt connecting groove at the bottom of the U-shaped positioning groove 11 arranged on the convex end surface of the outer ring groove 2 are used for connecting the casing 1 and the static vane main bodies 4 by fastening bolts, and then the first rubber connecting block 5 and the second rubber connecting block 6 arranged on one side end surface of the previous static vane main body 4 are matched and arranged with the first connecting groove 7 and the second connecting groove 8 arranged on one side end surface of the adjacent static vane main body 4, so that a plurality of static vane main bodies 4 are combined into a ring-shaped static vane, has the advantages of simple operation, convenient use and good use effect.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A variable stationary blade operating device comprising a casing (1), characterized in that: an outer ring groove (2) is arranged on the inner side of the casing (1), a side view angle of the outer ring groove (2) is concave at two sides and convex at the middle, a plurality of rubber elastic round blocks (3) are arranged at the top end of the outer ring groove (2), a plurality of stationary blade main bodies (4) are arranged in the casing (1), a first rubber connecting block (5) is arranged on one side end surface and near the upper end of each stationary blade main body (4), a second rubber connecting block (6) is arranged on the lower side of the first rubber connecting block (5) and near the lower end of one side end surface of each stationary blade main body (4), a first connecting groove (7) is arranged on the other side end surface and near the upper end of each stationary blade main body (4), a second connecting groove (8) is arranged on the lower side of the first connecting groove (7) and near the lower end of the other side end surface of each stationary blade main body (4), an outer ring block (9) is arranged on the upper side end surface of each stationary blade main body (4), and the side view angle of the outer ring block (9) is convex at two sides and concave in the middle, and a positioning component (10) is arranged on the end face of the concave part of the outer ring block (9).

2. The variable vane operating device according to claim 1, characterized in that: the positioning assembly (10) comprises a U-shaped positioning plate (101) and an elastic connecting piece (102), the elastic connecting piece (102) is fixedly arranged on the lower end face of the U-shaped positioning plate (101), the lower end of the elastic connecting piece (102) is fixedly connected with the end face of the concave portion of the outer ring block (9), and a bolt connecting through hole (103) penetrates through the U-shaped positioning plate (101).

3. The variable vane operating device according to claim 2, wherein: the end face of the convex part of the outer ring groove (2) is provided with a U-shaped positioning groove (11) matched with the U-shaped positioning plate (101), and the bottom end of the U-shaped positioning groove (11) is provided with a bolt connecting groove matched with the bolt connecting through hole (103).

4. The variable vane operating device according to claim 1, characterized in that: the former first rubber connecting block (5) and the second rubber connecting block (6) which are arranged on the upper side end face of the stationary blade main body (4) are matched with the adjacent first connecting groove (7) and the second connecting groove (8) which are arranged on the upper side end face of the stationary blade main body (4).

5. The variable vane operating device according to claim 1, characterized in that: the casing (1) is designed in an annular shape.

6. The variable vane operating device according to claim 1, characterized in that: each stationary blade body (4) is of fan-shaped design.