CN215595664U

CN215595664U - High-voltage energy shielding type power generation device

Info

Publication number: CN215595664U
Application number: CN202121724804.8U
Authority: CN
Inventors: 张泉
Original assignee: Nanchong Southwest Petroleum University Design And Research Institute Co ltd
Current assignee: Nanchong Southwest Petroleum University Design And Research Institute Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-01-21
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a high-pressure energy shielding type power generation device, which solves the problem that the range of available high-pressure energy media of the existing power generation device is single. The technical scheme adopted by the utility model is as follows: the high-voltage energy shielding type power generation device comprises a pipeline, blades, a permanent magnet rotor and a stator winding, wherein a medium flow channel is formed in the pipeline, the blades are suspended in the medium flow channel, and the blades are fixedly arranged at the front end of a rotating shaft; the stator winding is connected with an output cable, a front end cover and a rear end cover are respectively arranged at two ends of the stator winding, the front end cover and the rear end cover are respectively provided with a front bearing seat and a rear bearing seat, a front bearing and a rear bearing are respectively installed on the front end cover and the rear end cover, a rotating shaft is installed in the front bearing and the rear bearing, a permanent magnet rotor is fixedly arranged on the rotating shaft, and the permanent magnet rotor is positioned between the front bearing and the rear bearing. The medium with high pressure energy flows through the medium flow channel to drive the blades to rotate, so that the rotating shaft and the permanent magnet rotor synchronously rotate to achieve the purpose of power generation. The utility model is suitable for generating electricity by utilizing high-pressure liquid pure medium and flammable and explosive gases such as natural gas and the like.

Description

High-voltage energy shielding type power generation device

Technical Field

The utility model relates to a power generation device, in particular to a shielding type power generation device for generating power by using a high-voltage medium.

Background

At present, the existing high-voltage power generation devices drive the generator to generate power by using mechanical energy and kinetic energy generated by volume expansion when a medium is converted from high voltage to low voltage, and have the defects of low power generation efficiency, poor sealing property and more wearing parts, are only suitable for generating power by using a safe and clean medium, and are not suitable for generating power by using flammable and explosive and toxic gases. In reality, under many conditions with high pressure energy, such as high pressure natural gas, the high pressure energy cannot be utilized to generate electricity, and much high pressure energy is wasted.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high-pressure energy shielding chamber power generation device, which solves the problem that the range of available high-pressure energy media of the existing power generation device is single.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the high-voltage energy shielding type power generation device comprises a pipeline, blades, a permanent magnet rotor and a stator winding, wherein a medium flow channel is formed in the pipeline, a medium inlet and a medium outlet are respectively formed in two ends of the medium flow channel, the blades are suspended in the medium flow channel, the blades are fixedly installed on an impeller, and the impeller is fixedly installed at the front end of a rotating shaft and is positioned in the medium flow channel; the stator winding is connected with an output cable, a front end cover and a rear end cover are respectively arranged at two ends of the stator winding, the front end cover is in sealing fit with the pipeline, the front end cover and the rear end cover are also in sealing fit with the stator winding, the front end cover and the rear end cover are respectively provided with a front bearing seat and a rear bearing seat and are respectively provided with a front bearing and a rear bearing, a rotating shaft is arranged in the front bearing and the rear bearing, a permanent magnet rotor is fixedly arranged on the rotating shaft, and the permanent magnet rotor is positioned between the front bearing and the rear bearing.

Further, the method comprises the following steps: the axis of the pipeline at the front side of the blade is coincident with the axis of the rotating shaft.

Further, the method comprises the following steps: the pipeline is provided with a valve.

Further, the method comprises the following steps: the flow passage formed by the pipeline is arranged at the front side of the blade, the pipe diameter is gradually increased, and an expansion type structure is formed.

Further, the method comprises the following steps: the medium inlet direction and the medium outlet direction are mutually vertical, and the impeller is suspended at the intersection of the medium inlet direction and the medium outlet direction.

Further, the method comprises the following steps: the high-voltage energy shielding type power generation device further comprises a rack, and the pipeline, the front end cover and the rear end cover are all installed on the rack.

Further, the method comprises the following steps: three blades are arranged at the equal central angle of the impeller.

Specifically, the method comprises the following steps: the blade is the airfoil type blade, and the section shape of airfoil type blade does: the upper and lower surfaces are composed of multiple sections of arcs with different radiuses, one end of each arc is a sharp end, and the other end of each arc is in arc transition.

The utility model has the beneficial effects that: the medium with high pressure energy flows through the medium flow channel to drive the blades to rotate, so that the rotating shaft and the permanent magnet rotor synchronously rotate to achieve the purpose of power generation. The utility model adopts a shielding type design, has simple and reliable structure, easy equipment and low production and maintenance cost, can utilize various high-pressure media to generate electricity, can utilize liquid pure media such as water and the like, can also be flammable and explosive gas media such as natural gas and the like, and improves the utilization range of the generating set.

The runner forms the expanding structure in the front of blade, can improve the utilization ratio of high pressure energy, improves the generating efficiency. Three blades are arranged at equal central angles of the impeller, the maximum power coefficient and the noise are considered, and the power generation with larger power coefficient, low blade manufacturing cost and low noise is realized. The blade is a wing-shaped blade, has better aerodynamic performance, high efficiency, good strength and high rigidity, and can reduce the production and manufacturing cost and improve the power generation efficiency.

Drawings

Fig. 1 is a schematic view of a high-pressure energy shielded power plant according to the present invention.

Reference numerals: the device comprises a pipeline 1, a medium inlet 11, a medium outlet 12, a valve 13, a blade 2, a permanent magnet rotor 3, a stator winding 4, an output cable 41, a rotating shaft 5, a front end cover 6, a front bearing 61, a rear end cover 7, a rear bearing 71 and a frame 8.

Detailed Description

The utility model will be further explained with reference to the drawings.

As shown in fig. 1, the high-voltage energy shielding type power generation device of the utility model comprises a pipeline 1, blades 2, a permanent magnet rotor 3 and a stator winding 4, wherein a medium flow channel is formed in the pipeline 1, the medium flow channel is closed to prevent a high-voltage medium from flowing through the medium flow channel and leaking, and a medium inlet 11 and a medium outlet 12 are respectively arranged at two ends of the medium flow channel. The media flow path may also be provided with a valve 13, for example a valve 13 in the conduit 1 near the media inlet 11, the valve 13 being optionally a throttle.

The blades 2 are suspended in the medium flow channel, the blades 2 are fixedly arranged on the impeller, and the impeller is fixedly arranged at the front end of the rotating shaft 5 and is positioned in the medium flow channel. The blade 2 is positioned in the medium flow channel and is in a suspension shape and used for acquiring the energy of the high-pressure medium flowing through the flow channel. In order to enable the blade 2 to have better fluid mechanical property, the blade 1 adopts a wing-type blade, and the cross-sectional shape of the wing-type blade is as follows: the upper and lower surfaces are composed of multiple sections of arcs with different radiuses, one end of each arc is a sharp end, and the other end of each arc is in arc transition. The airfoil type blade has the advantages of better aerodynamic performance, high efficiency, good strength and high rigidity. The number of the blades 2 is preferably three, and the central angles are distributed in an equal manner, because the maximum power coefficient is increased along with the increase of the number of the blades 2, but the increase is reduced, and the noise of the three blades 2 is lower than that of the single blade 2 in the rotating process, the selection of three blades 2 is more reasonable, and a larger power coefficient, lower manufacturing cost and low noise can be obtained.

The medium flow channel formed by the pipeline 1 can be in any shape as long as the high-pressure medium is favorable for driving the blade 2 to rotate. For example, as shown in fig. 1, the direction of the medium inlet 11 and the direction of the medium outlet 12 are perpendicular to each other, and the impeller is suspended at the intersection of the direction of the medium inlet 11 and the direction of the medium outlet 12. In order to make the high-pressure medium directly act on the vane 2, the axis of the pipe 1 at the front side of the vane 2 coincides with the axis of the rotating shaft 5. The pipe diameter of the medium flow channel formed by the pipeline 1 can be fixed or changed, for example, the pipe diameter of the flow channel formed by the pipeline 1 is gradually increased along the medium flowing direction at the front side of the blade 2, and an expanding structure is formed, so that the utilization rate of high-pressure energy can be improved, and the power generation efficiency can be improved.

The stator winding 4 includes a frame and a coil, and is cylindrical with openings at both ends, the stator winding 4 is waterproof and airtight, the coil is wound on the frame and connected to an output cable 41, and the output cable 41 is used for outputting electric energy. Two ends of the stator winding 4 are respectively a front end cover 6 and a rear end cover 7, wherein one end close to the pipeline 1 is a front end, and the other end far away from the pipeline 1 is a rear end. The front end cover 6 is in sealing fit with the pipeline 1, and the front end cover and the rear end cover are also in sealing fit with the stator winding 4. One face of the front end cover 6 is fitted to and sealed with the pipe 1, and the other face of the front end cover 6 is fitted to and sealed with one end of the stator winding 4. The front end cover and the rear end cover are respectively provided with a front bearing seat and a rear bearing seat and are respectively provided with a front bearing and a rear bearing. The rotating shaft 5 is arranged in the front bearing and the rear bearing, namely the rear end of the rotating shaft 5 is arranged in the rear bearing 71, the front end of the rotating shaft 5 is fixed with the impeller and the vane 2, the front end of the rotating shaft 5 is suspended in the medium flow passage, and the position of the rotating shaft 5 close to the front end is arranged in the front bearing 61. The rotating shaft 5 is also fixedly provided with a permanent magnet rotor 3, and the permanent magnet rotor 3 is positioned between the front bearing 61 and the rear bearing 71 and is positioned in the range enclosed by the stator winding 4. The high-voltage energy shielding type power generation device further comprises a frame 8, and the pipeline 1, the front end cover 6 and the rear end cover 7 are all installed on the frame 8.

The operation process of the high-pressure energy shielding type power generation device is as follows: high-voltage medium enters a medium flow channel through a medium inlet 11 to contact with the blades 2 to do work, the blades 2 are driven to rotate rapidly, the rotating shaft 5 and the permanent magnet rotor 3 are driven to rotate synchronously, the stator winding 4 cuts magnetic induction lines and generates induced electromotive force through rotation of a magnetic field, and the generated electric energy is output through an output cable 41. The high pressure medium, after applying work, flows out of the medium outlet 12 into the subsequent low pressure pipe.

Claims

1. High-voltage energy shielding formula power generation facility, its characterized in that: the permanent magnet motor comprises a pipeline (1), blades (2), a permanent magnet rotor (3) and a stator winding (4), wherein a medium flow channel is formed in the pipeline (1), a medium inlet (11) and a medium outlet (12) are respectively formed in two ends of the medium flow channel, the blades (2) are suspended in the medium flow channel, the blades (2) are fixedly installed on an impeller, and the impeller is fixedly installed at the front end of a rotating shaft (5) and is positioned in the medium flow channel; output cable (41) is connected in stator winding (4), the both ends of stator winding (4) are front end housing (6) and rear end cap (7) respectively, sealed cooperation between front end housing (6) and pipeline (1), it is preceding, also sealed cooperation between rear end cap and stator winding (4), it is preceding, the rear end cap sets up respectively, the rear bearing seat installs front bearing (61) and rear bearing (71) respectively, pivot (5) are installed in the front, in the rear bearing, still fixed permanent magnet rotor (3) that set up on pivot (5), permanent magnet rotor (3) are located before, between the rear bearing.

2. The high voltage energy shielded power plant of claim 1, wherein: the axis of the pipeline (1) at the front side of the blade (2) is superposed with the axis of the rotating shaft (5).

3. The high voltage energy shielded power plant of claim 1, wherein: the pipeline (1) is provided with a valve (13).

4. The high voltage energy shielded power plant of claim 1, wherein: the flow channel formed by the pipeline (1) is arranged at the front side of the blade (2), the pipe diameter is gradually increased, and an expansion type structure is formed.

5. The high voltage energy shielded power plant of claim 1, wherein: the direction of the medium inlet (11) is vertical to the direction of the medium outlet (12), and the impeller is suspended at the intersection of the direction of the medium inlet (11) and the direction of the medium outlet (12).

6. The high-voltage energy shielding type power generation device as claimed in any one of claims 1 to 5, wherein: still include frame (8), pipeline (1), front end housing (6) and rear end cap (7) are all installed in frame (8).

7. The high-voltage energy shielding type power generation device as claimed in any one of claims 1 to 5, wherein: three blades (2) are arranged at the equal central angle of the impeller.

8. The high-voltage energy shielding type power generation device as claimed in any one of claims 1 to 5, wherein: the blade (2) is a wing type blade, and the section shape of the wing type blade is as follows: the upper and lower surfaces are composed of multiple sections of arcs with different radiuses, one end of each arc is a sharp end, and the other end of each arc is in arc transition.