CN210106056U

CN210106056U - Water turbine of power generation equipment

Info

Publication number: CN210106056U
Application number: CN201920699389.1U
Authority: CN
Inventors: 王天君; 吴传德; 吴锋; 黄继龙
Original assignee: Xuzhou Tongneng Electric Technology Co Ltd
Current assignee: Xuzhou Tongneng Electric Technology Co Ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-02-21
Anticipated expiration: 2029-05-16

Abstract

The utility model discloses a hydroelectric power generation technical field's a power generation facility's hydraulic turbine, which comprises a housing, the left end of casing link up and is provided with the inlet tube, be provided with the main shaft through the bearing around the casing, the middle part outer wall of main shaft is provided with the runner through the parallel key, the curved surface outer wall of runner evenly is provided with the blade, the blade is close to runner one end and is provided with the dovetail block, the runner outer wall be provided with the forked tail draw-in groove of forked tail block cooperation joint, and the rear end of forked tail draw-in groove does not link up, the runner front end is close to the outer lane and is provided with solid fixed ring through connecting bolt, the delivery port of the bottom of casing is provided with the installation lug all around, and the device blade structure can dismantle.

Description

Water turbine of power generation equipment

Technical Field

The utility model relates to a hydroelectric power generation technical field specifically is a power generation facility's hydraulic turbine.

Background

The runner is a key component for converting potential energy of water into kinetic energy as the heart of the hydro-generator. In general, a turbine runner includes a set of blades twisted into a certain shape and arranged on a runner shaft according to a certain rule, and water flows over the surfaces of the blades to impact the runner to rotate, thereby achieving the purpose of energy conversion. Most of runner blades of a water turbine in the prior art are manufactured in a casting mode and then are welded and installed, some blades and a runner are integrally formed, the blades work under the water flow impact condition, the blades are prone to being corroded and damaged for a long time, a series of problems (such as vibration, energy conversion efficiency reduction and the like) of a generator set are caused, the maintenance is complex, the construction period is long, and the power generation efficiency is influenced. For this purpose, we propose a turbine for a power plant.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power generation facility's hydraulic turbine 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: the utility model provides a power generation equipment's hydraulic turbine, includes the casing, the left end of casing link up and is provided with the inlet tube, be provided with the main shaft through the bearing around the casing, the middle part outer wall of main shaft is provided with the runner through the parallel key, the curved surface outer wall of runner evenly is provided with the blade, the blade is close to runner one end and is provided with the dovetail block, the runner outer wall be provided with the forked tail draw-in groove of forked tail block cooperation joint, and the rear end of forked tail draw-in groove does not link up, the runner front end is close to the outer lane and is provided with solid fixed ring through connecting bolt, the delivery.

Furthermore, one side of the clockwise concave surface of the blade is of a bucket-shaped structure.

Furthermore, the periphery of the front end of the rotating wheel is provided with positioning triangular grooves in an annular array mode, and the inner ring of the fixing ring is provided with meshing teeth matched with the positioning triangular grooves.

Furthermore, the casing is in clamping connection with the left part and the right part, the left casing and the right casing are connected through a bump groove structure with uneven reference, a V-shaped rubber sealing block is arranged on the inner wall of the groove, the bumps are welded around the left casing and the right casing, and the left casing and the right casing correspond to the two groups of bumps and are fixedly connected through bolts and nuts.

Furthermore, boss thickness is reserved in the front end middle part of runner is the same with solid fixed ring's thickness, gu fixed ring's inboard closely laminates the dovetail block, and gu every two sets of blades at the interval of the installation of connecting bolt set up a set ofly on the fixed ring.

Compared with the prior art, the beneficial effects of the utility model are that: the device adopts the mode of dovetail piece and dovetail to carry out the installation of blade, and the blade is stable not squint when using, when the blade damages because of using for a long time, can unpack the casing apart through connecting the lug, unpacks solid fixed ring apart again, takes off the blade that will damage, and the blade that has changed is installed again, and is quick convenient, greatly reduces the influence to the generating efficiency.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the assembly structure of the runner of the present invention;

fig. 3 is a sectional view of the casing structure of the present invention.

In the figure: the device comprises a machine shell 1, a water inlet pipe 2, a main shaft 3, a rotating wheel 4, a positioning triangular groove 41, blades 5, a dovetail block 51, a fixing ring 6, a mounting lug 7, a rubber sealing block 8V and a connecting lug 9.

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: the utility model provides a power generation equipment's hydraulic turbine, which comprises a housing 1, the left end of casing 1 link up and is provided with inlet tube 2, inlet tube 2 is located the inside delivery port slope of casing 1 downwards, casing 1's preceding back is provided with main shaft 3 through the bearing, main shaft 3's middle part outer wall is provided with runner 4 through the parallel key, runner 4's curved surface outer wall evenly is provided with blade 5, blade 5 is close to 4 one end of runner and is provided with

dovetail block

51, 4 outer walls of runner are provided with the forked tail draw-in groove with forked tail block 51 cooperation joint, and the rear end of forked tail draw-in groove does not link up, restrict dovetail block 51 rear end, 4 front ends of runner are close to the outer lane and are provided with solid fixed ring 6 through connecting bolt, gu fixed ring 6 restricts the dovetail block 51 front end, the.

As shown in fig. 1 and 2, the clockwise concave side of the blade 5 is of a bucket-shaped structure, so that the impact power of water flow is increased;

as shown in fig. 1 and 2, the positioning triangular grooves 41 are arranged in an annular array around the front end of the rotating wheel 4, and the inner ring of the fixing ring 6 is provided with engaging teeth matched with the positioning triangular grooves 41, so that the fixing ring 6 can be conveniently and rapidly attached and the connecting bolt can be rapidly and accurately installed;

as shown in fig. 3, the casing 1 is in a clamping connection with a left part and a right part, the left part and the right part of the casing 1 are connected through a bump-groove structure with uneven reference, a V-shaped rubber sealing block 8 is arranged on the inner wall of the groove, bumps 9 are welded around the left part and the right part of the casing 1, and the left part and the right part of the casing are fixedly connected through two groups of corresponding connecting bumps 9 by bolts and nuts;

boss thickness is reserved at the front end middle part of runner 4 the same with solid fixed ring 6's thickness, and solid fixed ring 6's inboard dovetail block 51 of tightly laminating is stabilized restriction to dovetail block 51, avoids blade 5 to rock around, and gu every two sets of blades 5 in interval of the installation of connecting bolt set up a set ofly on fixed ring 6, guarantees to the packing force stability of dovetail block 51.

Example (b): during the use, it is stable with the device installation through installation lug 7, intake from inlet tube 2, water impact blade 5, blade 5 drives runner 4 and rotates, 4 drive main shafts of runner 3 rotate, power generation facility is connected to 3 one end of main shaft, when blade 5 damages because of using, close inlet tube 2, can unpack casing 1 apart through connecting lug 9, unpack solid fixed ring 6 apart again, take off damaged blade 5, change good blade 5 and install again, and is quick convenient, and the influence to the generating efficiency is greatly reduced.

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 water turbine of a power generating plant comprising a casing (1), characterized in that: the left end of casing (1) link up and is provided with inlet tube (2), be provided with main shaft (3) through the bearing around casing (1), the middle part outer wall of main shaft (3) is provided with runner (4) through the parallel key, the curved surface outer wall of runner (4) evenly is provided with blade (5), blade (5) are close to runner (4) one end and are provided with dovetail block (51), runner (4) outer wall is provided with the forked tail draw-in groove with forked tail block (51) cooperation joint, and the rear end of forked tail draw-in groove does not link up, runner (4) front end is close to the outer lane and is provided with solid fixed ring (6) through connecting bolt, the delivery port of the bottom of casing (1) is provided with installation lug (7) all around.

2. A hydraulic turbine for a power plant according to claim 1, characterized in that: one side of the clockwise concave surface of the blade (5) is of a bucket-shaped structure.

3. A hydraulic turbine for a power plant according to claim 1, characterized in that: the front end of the rotating wheel (4) is provided with positioning triangular grooves (41) in an annular array mode, and the inner ring of the fixing ring (6) is provided with meshing teeth matched with the positioning triangular grooves (41).

4. A hydraulic turbine for a power plant according to claim 1, characterized in that: casing (1) is about two parts block connection, two parts casing is connected through the uneven lug groove structure of reference about casing (1), and recess inner wall is provided with V type rubber seal piece (8), casing (1) is controlled two parts casing and is welded connection lug (9) all around, controls and corresponds two sets of connect lug (9) through bolt and nut fixed connection.

5. A hydraulic turbine for a power plant according to claim 1, characterized in that: boss thickness is reserved in the front end middle part of runner (4) and is the same with the thickness of solid fixed ring (6), gu the inboard of fixed ring (6) tightly laminates dovetail block (51), and gu every two sets of blades (5) at the interval of the installation of connecting bolt set up a set ofly on fixed ring (6).