CN221033214U

CN221033214U - Anode circulating fan for solid oxide fuel cell

Info

Publication number: CN221033214U
Application number: CN202322900407.7U
Authority: CN
Inventors: 谢辉; 伍龙燕; 陈雄兵; 林梓荣; 陈锦芳; 肖楠
Original assignee: Guangdong Foran Technology Co ltd
Current assignee: Guangdong Foran Technology Co ltd
Priority date: 2023-10-27
Filing date: 2023-10-27
Publication date: 2024-05-28
Anticipated expiration: 2033-10-27

Abstract

The utility model discloses an anode circulating fan for a solid oxide fuel cell, which comprises a motor, an impeller, a volute and a cathode air cavity, wherein an anode air inlet and an anode air outlet are formed in the bottom of the volute, a rotating shaft and the impeller are arranged in the volute, one end of the rotating shaft is connected with the motor, the other end of the rotating shaft is rotationally connected with the volute, the middle part of the rotating shaft is detachably connected with the impeller through a shaft pin, the cathode air cavity is arranged at one side, close to the rotating shaft, of the outside of the volute, and the cathode air cavity and the volute are of an integrated structure. When the device works normally, heat of the impeller and anode gas during working is taken away by utilizing cathode gas, so that the temperature of the circulating fan during working is reduced, and the service life of the fan is prolonged.

Description

Anode circulating fan for solid oxide fuel cell

Technical Field

The utility model relates to the technical field of solid oxide cells, in particular to an anode circulating fan for a solid oxide fuel cell.

Background

A solid oxide fuel cell (Solid Oxide Fuel Cell, abbreviated as SOFC) is a power generation system which is composed of a fuel cell, a fuel supply and circulation system, an oxidant supply system and the like, wherein a circulation fan is an integral part of the fuel cell system and is used for conveying unreacted anode gas recovered by the fuel cell to the anode of the fuel cell. In the normal working process of the circulating fan, the temperature of the anode circulating gas is high, so that the temperature of the impeller and the rotating shaft of the fan is high, and the service life of the fan is shortened.

Disclosure of utility model

In order to solve the technical problems, the utility model provides an anode circulating fan for a solid oxide fuel cell.

The technical scheme of the utility model is as follows: the utility model provides a solid oxide fuel cell is with positive pole circulating fan, includes motor, impeller, spiral case and negative pole air cavity, and the bottom of spiral case is equipped with positive pole gas inlet, positive pole gas outlet, and the inside of spiral case is equipped with pivot and impeller, and the one end of pivot is connected with the rotation end of motor, and the other end is connected with spiral case rotation, and the middle part of pivot passes through the pivot and is connected with impeller detachably, and the outside of spiral case is close to one side of pivot and is equipped with the negative pole air cavity, and the negative pole air cavity is integrated into one piece with spiral case.

Further, the upper part of the cathode air cavity is provided with a plurality of cathode gas inlets which are symmetrically distributed on two sides of the volute; the lower part of the cathode air cavity is provided with a plurality of cathode gas outlets which are symmetrically distributed on two sides of the volute.

Further, both ends of spiral case are equipped with the opening, and the pivot passes the opening, and the inboard of opening all is equipped with the bearing, and the bearing rotates with the pivot to be connected, and the one end of spiral case is equipped with the bearing cap, and the bearing cap passes through the fastener with the spiral case to be connected.

Further, a sealing gasket is arranged between the bearing end cover and the bearing.

Further, one end of the rotating shaft far away from the bearing end cover is connected with the rotating end of the motor through a magnetic coupling.

Further, the inner magnet and the outer magnet of the magnetic coupling are separated through a separation sleeve, the separation sleeve is connected with the right side of the volute through a bolt, and a sealing gasket is arranged between the separation sleeve and the volute.

Further, a protecting sleeve is arranged outside the magnetic coupling and is connected with the motor shell and the right side of the volute.

Further, a dynamic sealing gasket is arranged in the volute, and the dynamic sealing gasket fills a gap between the volute and the rotating shaft.

Compared with the prior art, the utility model has the advantages that: the anode gas with higher temperature flows in the volute, the cathode air cavity outside the volute is integrated with the volute, and the cathode gas with lower temperature flows in the cathode air cavity, so that heat generated in the working process of the impeller and heat of the anode gas are conveniently transferred to the cathode gas through heat, the working temperature of the circulating fan is reduced, and the service life of the circulating fan is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an overall cross-sectional view of the present utility model;

Fig. 2 is a left side view of the overall utility model.

Wherein: 1. a bearing end cap; 2. a bearing; 3. a sealing gasket; 4. a fastener; 5. a cathode gas inlet; 6. a dynamic seal gasket; 7. a volute; 8. an impeller; 9. a shaft pin; 10. a rotating shaft; 11. a magnetic coupling; 12. a motor; 13. a frequency converter; 14. a cathode air cavity; 15. a cathode gas outlet; 16. a support; 17. a spacer sleeve; 18. a protective shell; 19. an anode gas inlet; 20. an anode gas outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the utility model, are within the scope of the utility model.

Specific embodiments of the present utility model will be described below with reference to the accompanying drawings:

As shown in fig. 1-2, an anode circulating fan for a solid oxide fuel cell comprises a motor 12, an impeller 8, a volute 7 and a cathode air cavity 14, wherein an anode air inlet 19 and an anode air outlet are formed in the bottom of the volute 7, a rotating shaft 10 and the impeller 8 are arranged in the volute 7, through holes are formed in two ends of the volute 7, the rotating shaft 10 penetrates through the through holes, bearings 2 are arranged on the inner sides of the through holes, the bearings 2 are rotationally connected with the rotating shaft 10, a bearing end cover 1 is arranged at one end of the volute 7, and the bearing end cover 1 is connected with the volute 7 through a fastener 4. The inside of the volute 7 is provided with a dynamic sealing gasket 6, and the dynamic sealing gasket 6 fills a gap between the volute 7 and the rotating shaft 10 to prevent anode gas from leaking out through the gap between the volute 7 and the rotating shaft 10. The rotating shaft 10 is rotationally connected with the volute 7 through the bearing 2, the through hole at one end of the volute 7 is closed by the bearing end cover 1, the sealing gasket 3 is arranged between the bearing end cover 1 and the bearing 2, and the sealing gasket 3 improves the sealing performance of the bearing end cover 1. The other end of the rotating shaft 10 is connected with the rotating end of the motor 12 through a magnetic coupling 11, and the magnetic coupling 11 can be used for realizing contactless torque transmission so as to ensure that the operating parts are completely sealed and prevent gas from escaping. The inner magnet and the outer magnet of the magnetic coupling 11 are separated through the isolating sleeve 17, the isolating sleeve 17 is connected with the right side of the volute 7 through bolts, the sealing gasket 3 is arranged between the isolating sleeve 17 and the volute 7, the isolating sleeve 17 ensures that the inner magnet is isolated from the outside, and the sealing gasket 3 improves the combination tightness of the isolating sleeve 17 and the volute 7. The outside of the magnetic coupling 11 is provided with a protective sleeve, the protective sleeve is connected with the right side of the housing of the motor 12 and the volute 7, the magnetic coupling 11 is isolated from the outside by the protective sleeve, the magnetic coupling 11 can be prevented from receiving the outside interference, and the magnetic coupling 11 is protected. The middle part of the rotating shaft 10 is detachably connected with the impeller 8 through the shaft pin 9, so that the maintenance and the maintenance of the impeller 8 and the rotating shaft 10 are facilitated. The outer part of the spiral case 7 is provided with a cathode air cavity 14 at one side close to the rotating shaft 10, and the cathode air cavity 14 and the spiral case 7 are of an integral structure. The upper part of the cathode air cavity 14 is provided with a plurality of cathode gas inlets 5, and the cathode gas inlets 5 are symmetrically distributed on two sides of the volute 7; the lower part of the cathode air cavity 14 is provided with a plurality of cathode gas outlets 15, the cathode gas outlets 15 are symmetrically distributed on two sides of the volute 7, cathode gas passes through the cathode gas inlet 5, enters the cathode air cavity 14 and contacts with the surface of the volute 7, and the cathode gas absorbs heat of the volute 7 through heat transfer and flows out of the cathode gas outlets 15, so that the temperature of the volute 7 is reduced.

The working principle of the specific embodiment of the utility model is as follows: anode gas enters the volute 7 from an anode gas inlet 19, flows out of the volute 7 from an anode gas outlet 20, the motor 12 drives the shaft to rotate together through the magnetic coupling 11, the anode gas obtains power at the impeller 8 and is boosted, and the anode gas is boosted at the volute 7 due to isolation of the dynamic sealing gasket 6, but the temperature of the anode gas is conducted to the volute 7 and the shaft; the cathode gas enters the cathode air cavity 14 from the cathode gas inlet 5, and after the cathode gas exchanges heat with the volute 7, the cathode gas carries heat and flows out of the cathode air cavity 14 from the cathode gas outlet 15.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper," "lower," "left," "right," "front," "back," and the like are used herein for illustrative purposes only.

The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.

Claims

1. An anode circulating fan for a solid oxide fuel cell, characterized in that: including motor (12), impeller (8), spiral case (7) and negative pole air cavity (14), the bottom of spiral case (7) is equipped with positive pole gas inlet (19), positive pole gas outlet (20), the inside of spiral case (7) be equipped with pivot (10) and impeller (8), the one end of pivot (10) with the rotation end of motor (12) is connected, the other end with spiral case (7) rotate to be connected, the middle part of pivot (10) pass through pivot (9) with impeller (8) can dismantle to be connected, the outside of spiral case (7) is close to one side of pivot (10) is equipped with negative pole air cavity (14), negative pole air cavity (14) with spiral case (7) are integrated into one piece.

2. The anode circulating fan for a solid oxide fuel cell according to claim 1, characterized in that: the upper part of the cathode air cavity (14) is provided with a plurality of cathode gas inlets (5), and the cathode gas inlets (5) are symmetrically distributed on two sides of the volute (7); the lower part of the cathode air cavity (14) is provided with a plurality of cathode gas outlets (15), and the cathode gas outlets (15) are symmetrically distributed on two sides of the volute (7).

3. The anode circulating fan for a solid oxide fuel cell according to claim 1, characterized in that: the spiral case is characterized in that through holes are formed in two ends of the spiral case (7), the rotating shaft (10) penetrates through the through holes, bearings (2) are arranged on the inner sides of the through holes, the bearings (2) are rotationally connected with the rotating shaft (10), a bearing end cover (1) is arranged at one end of the spiral case (7), and the bearing end cover (1) is connected with the spiral case (7) through a fastener (4).

4. The anode circulating fan for a solid oxide fuel cell according to claim 3, wherein: a sealing gasket (3) is arranged between the bearing end cover (1) and the bearing (2).

5. The anode circulating fan for a solid oxide fuel cell according to claim 3, wherein: one end of the rotating shaft (10) far away from the bearing end cover (1) is connected with the rotating end of the motor (12) through a magnetic coupling (11).

6. The anode circulating fan for a solid oxide fuel cell according to claim 5, wherein: the inner magnet and the outer magnet of the magnetic coupling (11) are separated through a separation sleeve (17), the separation sleeve (17) is connected with the right side of the volute (7) through bolts, and a sealing gasket (3) is arranged between the separation sleeve (17) and the volute (7).

7. The anode circulating fan for a solid oxide fuel cell according to claim 5, wherein: the outside of the magnetic coupling (11) is provided with a protective sleeve, and the protective sleeve is connected with the shell of the motor (12) and the right side of the volute (7).

8. The anode circulating fan for a solid oxide fuel cell according to claim 1, characterized in that: the inside of the volute (7) is provided with a dynamic sealing gasket (6), and the dynamic sealing gasket (6) fills a gap between the volute (7) and the rotating shaft (10).