CN213175916U

CN213175916U - Hollow shaft pipeline type hydroelectric generation device

Info

Publication number: CN213175916U
Application number: CN202021427833.3U
Authority: CN
Inventors: 刘晓庆; 刘晓兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-05-11
Anticipated expiration: 2030-07-20

Abstract

The utility model discloses a hollow shaft pipeline type hydroelectric generation device, which comprises a water inlet pipeline, a water outlet pipeline, a hollow rotor which is coaxial with the water inlet pipeline and the water outlet pipeline and is rotationally connected between the water inlet pipeline and the water outlet pipeline, and a stator which is sleeved outside the hollow rotor; the hollow rotor inner wall is provided with a plurality of axial flow type blades at intervals in the axial direction, and the axial flow type blades are arranged in a staggered manner in the circumferential direction: the utility model discloses a with adjacent two sets of axial-flow type blade circumference dislocation arrangement for behind a set of axial-flow type blade, can continue to strike a set of axial-flow type blade down, thereby more make full use of fluidic kinetic energy.

Description

Hollow shaft pipeline type hydroelectric generation device

Technical Field

The utility model relates to a hydroelectric generation field especially relates to a hollow shaft pipeline formula hydroelectric generation device.

Background

The existing hydroelectric generating set mainly comprises a water turbine and a generator connected with the water turbine through a transmission shaft, and can generate electricity by utilizing fluid with a certain water head and flow. However, in a closed pipeline with a certain water head and flow rate, a hydroelectric generating set formed by assembling a water turbine and a generator has a complex structure and a large occupied space, and cannot be applied to a position where a plurality of pipelines are concentrated.

In addition, the water turbine installed in the pipeline generally has a large resistance to the water flow in the pipeline so as to be able to fully utilize the impact energy of the water flow in the pipeline, but at the same time, a fluid channel must be installed to normally pass through the blades of the water turbine, so that the water flow still maintains part of the vortex kinetic energy after passing through the blades of the water turbine, and cannot be well utilized.

Disclosure of Invention

The utility model aims at providing a hollow shaft pipeline formula hydroelectric generation device to solve the problem that above-mentioned prior art exists, through with adjacent two sets of axial-flow type blade circumference dislocation arrangement, make after a set of axial-flow type blade was washed to the fluid, can continue to strike a set of axial-flow type blade down, thereby more make full use of fluidic kinetic energy.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a hollow shaft pipeline type hydroelectric generation device, which comprises a water inlet pipeline, a water outlet pipeline, a hollow rotor which is coaxial with the water inlet pipeline and the water outlet pipeline and is rotationally connected between the water inlet pipeline and the water outlet pipeline, and a stator which is sleeved outside the hollow rotor; the hollow rotor is characterized in that a plurality of axial flow type blades are fixedly mounted on the inner wall of the hollow rotor at intervals in the axial direction, and two adjacent sets of the axial flow type blades are arranged in a circumferentially staggered manner.

Preferably, each set of axial flow blades is centrosymmetric.

Preferably, rolling bearings are respectively arranged between the hollow rotor and the water inlet pipeline and between the hollow rotor and the water outlet pipeline, inner rings of the rolling bearings are in interference fit with the hollow rotor, and outer rings of the rolling bearings are in interference fit with the water inlet pipeline and the water outlet pipeline respectively.

Preferably, a sealing ring seal or a felt ring seal is adopted at the rolling bearing.

Preferably, the stator is fixed on the ground or on a high-pressure water injection pipeline.

Preferably, the number of the axial flow type blades is 2-20.

Preferably, the deflection angle of the axial flow blade is 16 °.

The utility model discloses for prior art gain following technological effect:

(1) the utility model designs the traditional water turbine and the transmission shaft into a whole, and the traditional water turbine and the transmission shaft are jointly used as the rotor of the generator and are designed into a hollow pipeline type, thereby forming a pipeline type hydroelectric generator which can be directly arranged on a pressure fluid pipeline, and the hydraulic generator has simple structure, convenient use, low cost and strong practicability;

(2) the utility model discloses the axial interval fixedly installs the axial-flow type blade on the hollow rotor inner wall, and two sets of adjacent axial-flow type blades are arranged in a staggered way in the circumferential direction, and after the fluid rushes through a set of axial-flow type blade, can continue to strike a set of axial-flow type blade down, thereby more fully utilize the kinetic energy of the fluid;

(3) the utility model discloses a form of axial-flow type blade is arranged to circumference dislocation can reduce the fluidic kinetic energy pressure of assaulting the axial-flow type blade by a wide margin, is showing the utilization efficiency who improves the energy.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic view of the overall structure of a hollow shaft pipeline type hydroelectric power generation device;

FIG. 2 is a schematic diagram of a staggered arrangement of two adjacent axial flow blades;

FIG. 3 is a schematic view of an axial flow blade deflection angle;

wherein, 1, a water outlet pipeline; 2. a hollow rotor; 3. an axial flow blade; 31. reinforcing ribs; 4. a stator; 5. a rolling bearing; 6. a water inlet pipe; alpha, the deflection angle.

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.

The utility model aims at providing a hollow shaft pipeline formula hydroelectric generation device to solve the problem that prior art exists, through with adjacent two sets of axial-flow type blade circumference dislocation arrangement, make after a set of axial-flow type blade was washed to the fluid, can continue to strike a set of axial-flow type blade down, thereby more make full use of fluidic kinetic energy.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1, the utility model provides a hollow shaft pipeline type hydroelectric generation device, which comprises a water inlet pipeline 6, a water outlet pipeline 1, a hollow rotor 2 which is coaxial with the water inlet pipeline 6 and the water outlet pipeline 1 and is rotatably connected between the water inlet pipeline 6 and the water outlet pipeline 1, and a stator 4 which is sleeved outside the hollow rotor 2; it should be noted that the hollow rotor 2 is a rotor of a generator, only the central shaft is replaced with a hollow structure, the two ends of the hollow rotor 2 are rotatably supported by the water inlet pipe 6 and the water outlet pipe 1 arranged at the two ends of the hollow rotor 2, and then the required rotor core and other structures are arranged on the periphery of the hollow rotor 2, and the specific arrangement mode can be obtained by those skilled in the art according to the common knowledge in the art; the stator 4 is a stator of a generator, is arranged at the periphery of the hollow rotor 2, and is consistent with the prior art, and the stator 4 is provided with a stator winding and other structures; in addition, the auxiliary structures of other generators are correspondingly arranged to realize power generation, and the specific structure is not described herein again;

a plurality of axial flow blades 3 are axially and fixedly installed on the inner wall of the hollow rotor 2 at intervals, each axial flow blade 3 comprises a plurality of blades which are circumferentially distributed, as shown in fig. 2, the blades of two adjacent sets of axial flow blades 3 are circumferentially arranged in a staggered manner, that is, after fluid rushes through one set of axial flow blades 3, the next set of axial flow blades 3 can be continuously impacted, so that the kinetic energy of the fluid is more fully utilized, the kinetic energy pressure of the fluid impacting the axial flow blades 3 is greatly reduced, and the utilization efficiency of the energy is remarkably improved; it should be noted that the outer diameter end of the axial flow blade 3 is connected to the inner wall of the hollow rotor 2, and a gap through which the fluid passes is left between the inner diameter end and the center of the axial flow blade 3, and the gap is set according to actual requirements, for example, when only a small part of energy of the fluid needs to be utilized, the distance can be set larger, so that the resistance to the fluid is reduced, and the fluid can pass smoothly; when more energy of the fluid needs to be utilized, the distance can be set smaller, and the resistance to the fluid is improved.

Further, as shown in fig. 2, each set of axial flow blades 3 is centrosymmetric, and the fluid impacts the axial flow blades 3 to ensure uniform stress, so that the vibration of the axial flow blades 3 during rotation is reduced, and the stability of operation is improved.

Referring to fig. 1, rolling bearings 5 are respectively arranged between the hollow rotor 2 and the water inlet pipe 6 and between the hollow rotor 2 and the water outlet pipe 1, inner rings of the rolling bearings 5 are in interference fit with the hollow rotor 2, and outer rings of the rolling bearings 5 at two ends of the hollow rotor 2 are in interference fit with the water inlet pipe 6 and the water outlet pipe 1 respectively, so that the hollow rotor 2 can rotate relative to the water inlet pipe 6 and the water outlet pipe 1.

Further, the rolling bearing 5 may be sealed by a contact sealing method, such as a gasket seal, a felt seal, etc., to prevent water and other impurities from entering the bearing and prevent lubricant from being lost.

The stator 4 can be fixed on the ground or on the water inlet pipe 6 and the water outlet pipe 1 at the two ends of the stator, and can be connected with the pipes in various modes such as flanges, welding, unions, screw threads and the like during fixing, or can be directly fixed on a concrete foundation on the ground through a support.

The number of the blades of each group of axial flow type blades 3 can be set to be 2-20, and the blades are uniformly and annularly arranged on the circumference of the axial flow type blades 3 and are symmetrically arranged along the central axial direction.

As shown in fig. 3, the deflection angle α of the axial flow blade 3 is 16 °, and a reinforcing rib 31 may be further provided inside the axial flow blade 3 to improve the overall strength of the axial flow blade 3.

The utility model discloses hollow rotor 2 designs the hollow pipeline of installing axial-flow blade 3 for the inner wall, be used for the fluid circulation, and rotate in step under axial-flow blade 3's drive when the fluid strikes axial-flow blade 3, make hollow rotor 2 exert the effect of the hydraulic turbine and transmission shaft simultaneously, be connected through sealed and antifriction bearing 5 between hollow rotor 2 and inlet channel 6 and the outlet conduit 1, keep the seal and the rotation of pipeline to be connected, stator 4 arranges in outside hollow rotor 2, be fixed in on ground or the pipeline, thereby form but the direct mount pipeline formula hydroelectric generator on the pipeline.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. A hollow shaft pipeline formula hydroelectric generation device which characterized in that: the water inlet pipe and the water outlet pipe are coaxial, the hollow rotor is rotatably connected between the water inlet pipe and the water outlet pipe, and the stator is sleeved outside the hollow rotor; the hollow rotor is characterized in that a plurality of axial flow type blades are fixedly mounted on the inner wall of the hollow rotor at intervals in the axial direction, and two adjacent sets of the axial flow type blades are arranged in a circumferentially staggered manner.

2. A hollow shaft ducted hydroelectric installation as claimed in claim 1 in which: each set of axial flow blades is centrosymmetric.

3. A hollow shaft ducted hydroelectric installation as claimed in claim 1 in which: and rolling bearings are respectively arranged between the hollow rotor and the water inlet pipeline and between the hollow rotor and the water outlet pipeline, the inner rings of the rolling bearings are in interference fit with the hollow rotor, and the outer rings of the rolling bearings are in interference fit with the water inlet pipeline and the water outlet pipeline respectively.

4. A hollow shaft ducted hydroelectric installation as claimed in claim 3 in which: and the rolling bearing is sealed by a sealing ring or a felt ring.

5. A hollow shaft ducted hydroelectric installation according to any of claims 1 to 4 in which: the stator is fixed on the ground or on a high-pressure water injection pipeline.

6. A hollow shaft ducted hydroelectric installation according to claim 5 in which: the number of the axial flow type blades is 2-20.

7. A hollow shaft ducted hydroelectric installation according to claim 5 in which: the deflection angle of the axial flow blades is 16 °.