CN210371235U

CN210371235U - Fuel cell air compressor

Info

Publication number: CN210371235U
Application number: CN201921317034.8U
Authority: CN
Inventors: 康磊; 刘西利; 娄建军; 强亮亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-04-21
Anticipated expiration: 2029-08-14

Abstract

The utility model discloses a fuel cell air compressor, which comprises a motor shell, wherein the outer surface of the motor shell comprises a cooling air outlet and a cooling air inlet, the cooling air outlet and the cooling air inlet are respectively positioned at two ends of the motor shell, an output rotating shaft is rotatably arranged at the inner side of the motor shell, cooling fan blades are fixed at two ends of the output rotating shaft, motor end covers are fixed at the inner sides of two ends of the motor shell, and the motor end covers are rotatably connected with the output rotating shaft through bearings; through being provided with centrifugal impeller, the cooling flabellum, the turbine inlet volute, the thrust dish, centripetal impeller and thrust bearing, be convenient for rotate through electric power and fuel exhaust's energy drive equipment, realize bimodulus operating condition, through being provided with the bolster, a spring, the arc is protruding, connecting plate and bottom plate, be convenient for avoid the too big damage that easily causes peripheral equipment and place the mesa of vibrational force, the ventilation of the equipment below of being convenient for simultaneously reduces ground moisture and to equipment lower surface corrosion damage.

Description

Fuel cell air compressor

Technical Field

The utility model belongs to the technical field of the fuel cell air compressor machine, concretely relates to fuel cell air compressor machine.

Background

In the aspect of energy utilization, the fuel cell is a high-efficiency and clean energy source, and has the advantages of high energy utilization rate, small environmental pollution and the like, the solid oxide fuel cell (SOFC for short) is a very potential energy source, and the SOFC system comprises a cathode system for providing oxygen for a stack and an anode reforming system for providing fuel. The cathode system comprises an air pressurization transmission system, and an air compressor supplies oxygen required by electrochemical reaction to the fuel cell system, and is one of the core parts of the fuel cell system. Present air compressor machine for fuel cell is when using, drive the air compressor machine through single electric energy more, electric energy drive equipment during operation, the rotational speed is too high can lead to the increase of air pressure in the cathode system, and can consume too much power, the rotational speed is low excessively, can make the supply of cathode oxygen not enough, influence the result of use of equipment, it is comparatively inconvenient to use, in addition, be not convenient for cushion the vibrational force of equipment during operation, the too big damage that easily causes peripheral equipment and place the mesa of vibrational force, the result of use is not good, for this reason we propose a fuel cell air compressor machine.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fuel cell air compressor machine, in order to solve and to propose current air compressor machine for fuel cell in the above-mentioned background art when using, drive the air compressor machine through single electric energy more, when electric drive equipment operates, the rotational speed is too high can lead to the increase of air pressure in the cathode system, and can consume too much power, when the rotational speed is low excessively, can make the supply of cathode oxygen not enough, influence the result of use of equipment, it is comparatively inconvenient to use, in addition, be not convenient for cushion the vibrational force of equipment during operation, the too big damage that easily causes peripheral equipment and place the mesa of vibrational force, the not good problem of result of use.

In order to achieve the above object, the utility model provides a following technical scheme: a fuel cell air compressor comprises a motor shell, wherein the outer surface of the motor shell comprises a cooling air outlet and a cooling air inlet, the cooling air outlet and the cooling air inlet are respectively positioned at two ends of the motor shell, an output rotating shaft is rotatably arranged at the inner side of the motor shell, cooling fan blades are fixedly arranged at two ends of the output rotating shaft, motor end covers are fixedly arranged at the inner sides of two ends of the motor shell, the motor end covers are rotatably connected with the output rotating shaft through bearings, a compressor volute is fixedly arranged at one end of the motor shell, a centrifugal impeller is arranged at the inner side of the compressor volute, one end of the centrifugal impeller is fixedly connected with the output rotating shaft through a first pull rod, a turbine air inlet volute is fixedly arranged on the outer side wall of the other end of the motor shell, a thrust bearing is fixedly arranged at the middle part of the outer side of the other end of, the inner side of the thrust disc is provided with a second pull rod, one end of the second pull rod is fixedly connected with the output rotating shaft, a centripetal impeller is fixed on the outer side of the second pull rod, and a base placing mechanism is arranged on the lower side of the compressor volute.

Preferably, it includes bolster, spring, bottom plate and connecting plate to place base mechanism, the connecting plate is respectively through branch and compressor spiral case and turbine inlet volute fixed connection, the lower surface of connecting plate is fixed with the bolster along its length direction equidistance, the bolster includes two crooked arcs dorsad, two be fixed with the spring between the arc.

Preferably, it is protruding to place base mechanism still includes the arc, the inboard integrated into one piece of bottom plate has the arc protruding, the arc is protruding to be set up along bottom plate length direction equidistance.

Preferably, a sealing elastic sheet is fixed between the bottom plate and the connecting plate, the sealing elastic sheet is positioned on the outer side of the spring, and the sealing elastic sheet is in a frame shape.

Preferably, a heat insulation sealing gasket is fixed between the motor shell and the turbine air inlet volute, and the heat insulation sealing gasket is annular.

Preferably, a water jacket is fixed on the inner side wall of the motor housing, two ends of the water jacket penetrate through the outer side wall of the motor housing and extend towards the outer side of the motor housing, and a water inlet and a water outlet are respectively formed in two ends of the extended water jacket.

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

(1) through being provided with centrifugal impeller, the cooling flabellum, the turbine inlet volute, the thrust disc, centripetal impeller and thrust bearing, be convenient for rotate through electric power and fuel exhaust's energy drive equipment, realize bimodulus operating condition, be convenient for avoid only when running through electric energy drive equipment, the too high air pressure increase in the negative pole system that can lead to of rotational speed, and consume too much power, the machine rotational speed is crossed lowly, can make the negative pole oxygen supply not enough, influence the result of use of equipment, equipment is small simultaneously, it is good to save the electric energy effect, be convenient for reduce use cost.

(2) Through being provided with bolster, spring, arc arch, connecting plate and bottom plate, be convenient for cushion the vibrational force of equipment during operation, avoid the too big damage that easily causes peripheral equipment and place the mesa of vibrational force, the ventilation of the equipment below of being convenient for reduces the difficult quilt of ground moisture and blows off, causes the equipment lower surface to take place to be corroded the damage.

Drawings

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

fig. 2 is a schematic view of the present invention at a position a in fig. 1;

FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 1;

in the figure: 1. a compressor volute; 2. a motor housing; 3. a motor end cover; 4. cooling the fan blades; 7. a water jacket; 8. cooling the air outlet; 9. a turbine inlet volute; 10. a heat insulating gasket; 11. a thrust disc; 12. a centripetal impeller; 13. a buffer member; 14. a spring; 15. an arc-shaped bulge; 16. a base plate; 17. a connecting plate; 18. a centrifugal impeller; 19. an output shaft; 20. a thrust bearing; 21. sealing the elastic sheet; 22. and cooling the air inlet.

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 fuel cell air compressor comprises a motor shell 2, the outer surface of the motor shell 2 comprises a cooling air outlet 8 and a cooling air inlet 22, the cooling air outlet 8 and the cooling air inlet 22 are respectively positioned at two ends of the motor shell 2, an output rotating shaft 19 is rotatably arranged at the inner side of the motor shell 2, cooling blades 4 are fixed at two ends of the output rotating shaft 19 so as to be convenient for heat dissipation of a motor, motor end covers 3 are fixed at the inner sides of two ends of the motor shell 2, the motor end covers 3 are rotatably connected with the output rotating shaft 19 through bearings, a compressor volute 1 is fixed at one end of the motor shell 2, a centrifugal impeller 18 is arranged at the inner side of the compressor volute 1, one end of the centrifugal impeller 18 is fixedly connected with the output rotating shaft 19 through a first pull rod, a turbine air inlet volute 9 is fixed at the outer side wall of the other end of the motor, the middle part in the outside of the 2 other ends of motor housing has thrust bearing 20 through the bolt fastening, thrust bearing 20's inboard is rotated and is connected with thrust disc 11, it rotates to be convenient for centripetal impeller 12 drives output pivot 19, save the energy that the electric energy drove output pivot 19 and rotate the loss, thrust disc 11's inboard is provided with the second pull rod, the one end and the 19 fixed connection of output pivot of second pull rod, the outside of second pull rod is fixed with centripetal impeller 12, it rotates to be convenient for promote centripetal impeller 12 through the energy of tail gas, it rotates the work to be convenient for make the air compressor machine rotate, compressor volute 1's downside is provided with places base mechanism.

In this embodiment, it is preferred, it includes bolster 13 to place the base mechanism, spring 14, bottom plate 16 and connecting plate 17, connecting plate 17 is respectively through branch and compressor spiral case 1 and turbine air inlet spiral case 9 fixed connection, the lower surface of connecting plate 17 is fixed with bolster 13 along its length direction equidistance, bolster 13 includes two arcs of bending dorsad, be fixed with spring 14 between two arcs, be convenient for cushion the vibrational force of air compressor, prevent that vibrational force is too big to cause the damage to ground.

In this embodiment, preferably, it further includes arc protrusion 15 to place the base mechanism, and the inboard integrated into one piece of bottom plate 16 has arc protrusion 15, and arc protrusion 15 sets up along 16 length direction equidistance of bottom plate, is convenient for make 16 lower surface shaping of bottom plate have the ventilation slot, is convenient for blow, and the upper surface of bottom plate 16 forms protruding piece, and the restriction bottom plate 16 is too close to the distance between connecting plate 17, causes the too big damage that causes of bolster 13 deformation volume.

In this embodiment, preferably, a sealing elastic sheet 21 is fixed between the bottom plate 16 and the connecting plate 17, the sealing elastic sheet 21 is located outside the spring 14, so as to facilitate sealing between the bottom plate 16 and the connecting plate 17 and facilitate dust and water prevention, and the sealing elastic sheet 21 is frame-shaped.

In this embodiment, preferably, a heat insulating gasket 10 is fixed between the motor housing 2 and the turbine air inlet volute 9, and the heat insulating gasket 10 is annular, so as to prevent heat energy of tail gas inside the turbine air inlet volute 9 from being transferred to one side of the motor.

In this embodiment, preferably, a water jacket 7 is fixed on an inner side wall of the motor housing 2, two ends of the water jacket 7 penetrate through the outer side wall of the motor housing 2 and extend to an outer side of the motor housing 2, and two ends of the extended water jacket 7 are respectively provided with a water inlet and a water outlet, so as to facilitate cooling of the motor.

The utility model discloses a theory of operation and use flow: when the device is used, the tail gas of the fuel cell stack is fully combusted in the combustion chamber, the tail gas enters the interior of the combustion chamber from the opening on one side of the turbine air inlet volute 9 after combustion, the energy of the tail gas pushes the centripetal impeller 12 to rotate, the output rotating shaft 19 is conveniently driven to rotate by the centripetal impeller 12, the power of the electric energy driving the output rotating shaft 19 is further reduced, the output rotating shaft 19 is conveniently driven in two driving modes, dual-mode operation is conveniently realized, electric energy is further saved, the system power consumption of the air compressor is reduced, the cooling air on the outer side is conveniently sucked by the rotation of the cooling fan blades 4 and the flowing of cold water on the inner side of the water jacket 7, the motor is conveniently cooled, the vibration force of equipment operation is conveniently buffered for one time by the buffer part 13 in the use process, when the buffer part 13 deforms due to stress, the support of the buffer part 13 by, realize the secondary buffering shock attenuation, simultaneously through arc arch 15, be convenient for prevent that distance between connecting plate 17 and the bottom plate 16 is too near, lead to bolster 13 to take place the deformation volume too big and damage, further through the recess of the protruding 15 formation of arc, the ventilation of the 16 lower surfaces of bottom plate of being convenient for reduces 16 lower surfaces of bottom plate and wets and causes the corrosion damage.

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. The utility model provides a fuel cell air compressor machine, includes motor housing (2), its characterized in that: the motor is characterized in that the outer surface of the motor shell (2) comprises a cooling air outlet (8) and a cooling air inlet (22), the cooling air outlet (8) and the cooling air inlet (22) are respectively positioned at two ends of the motor shell (2), an output rotating shaft (19) is rotatably arranged at the inner side of the motor shell (2), cooling fan blades (4) are fixed at two ends of the output rotating shaft (19), motor end covers (3) are fixed at the inner sides of two ends of the motor shell (2), the motor end covers (3) are rotatably connected with the output rotating shaft (19) through bearings, a compressor volute (1) is fixed at one end of the motor shell (2), a centrifugal impeller (18) is arranged at the inner side of the compressor volute (1), one end of the centrifugal impeller (18) is fixedly connected with the output rotating shaft (19) through a first pull rod, and a turbine air inlet volute (9) is fixed at the outer side wall of the other end, the middle part in the outside of motor housing (2) other end is fixed with thrust bearing (20) through the bolt, the inboard rotation of thrust bearing (20) is connected with thrust disc (11), the inboard of thrust disc (11) is provided with the second pull rod, the one end and output pivot (19) fixed connection of second pull rod, the outside of second pull rod is fixed with centripetal impeller (12), the downside of compressor spiral case (1) is provided with places base mechanism.

2. The fuel cell air compressor of claim 1, wherein: it includes bolster (13), spring (14), bottom plate (16) and connecting plate (17) to place base mechanism, connecting plate (17) are respectively through branch and compressor spiral case (1) and turbine inlet volute (9) fixed connection, the lower surface of connecting plate (17) is fixed with bolster (13) along its length direction equidistance, bolster (13) include two arcs of bending dorsad, two be fixed with spring (14) between the arc.

3. The fuel cell air compressor of claim 2, wherein: it still includes arc arch (15) to place base mechanism, the inboard integrated into one piece of bottom plate (16) has arc arch (15), arc arch (15) set up along bottom plate (16) length direction equidistance.

4. The fuel cell air compressor of claim 2, wherein: a sealing elastic sheet (21) is fixed between the bottom plate (16) and the connecting plate (17), the sealing elastic sheet (21) is located on the outer side of the spring (14), and the sealing elastic sheet (21) is of a frame shape.

5. The fuel cell air compressor of claim 1, wherein: a heat insulation sealing gasket (10) is fixed between the motor shell (2) and the turbine air inlet volute (9), and the heat insulation sealing gasket (10) is annular.

6. The fuel cell air compressor of claim 1, wherein: the water jacket (7) is fixed on the inner side wall of the motor shell (2), two ends of the water jacket (7) penetrate through the outer side wall of the motor shell (2) and extend towards the outer side of the motor shell (2), and a water inlet and a water outlet are formed in two extending ends of the water jacket (7) respectively.