CN217444445U - Fuel cell system with auxiliary drainage, fuel cell and vehicle - Google Patents

Abstract

The utility model provides a fuel cell system, fuel cell and vehicle with supplementary drainage, wherein, the fuel cell system with supplementary drainage, including air compression inflation all-in-one, intercooler, air inlet air throttle, humidifier, galvanic pile, tail row air throttle and divide the water piece; the air compression and expansion integrated machine comprises a pressure wheel end and a turbine end, air enters an intercooler after being compressed by the pressure wheel end, air output by the intercooler is transmitted to a humidifier after passing through an air inlet throttle valve, and the air after passing through the humidifier enters the galvanic pile; the product after the galvanic pile reaction is sequentially conveyed to a water diversion piece through a humidifier and a tail exhaust throttle valve, the water diversion piece performs gas-water separation on the product after the reaction, separated gas is conveyed to the turbine end, and separated liquid is discharged through a water outlet which is arranged on the water diversion piece; and the bottom of the water diversion piece is provided with a capillary tube. The liquid water is prevented from being attached to the tail exhaust throttle valve after the fuel cell is shut down, and the liquid water is completely discharged.

Description

Fuel cell system with auxiliary drainage, fuel cell and vehicle

Technical Field

The utility model belongs to the technical field of fuel cell, especially, relate to a fuel cell system, fuel cell and vehicle with supplementary drainage.

Background

The fuel cell engine has wide application scenes and is widely used on the whole vehicle at present. When the whole vehicle is matched, the operation condition and the scene of the whole vehicle, such as the operation on a slope, the parking road condition and the like, need to be considered. Therefore, the above operating scenario needs to be considered in designing the fuel cell engine system. At present, an air compressor on a fuel cell system is gradually replaced by an air compression and expansion integrated machine, and the air compressor is used for recovering energy in an air tail row of the fuel cell and further reducing the power consumption of the air compressor. Because the fuel cell stack air tail exhaust gas contains liquid water, the tail exhaust gas needs to separate the liquid water in the gas when entering the turbine end, and the influence on the turbine recovery efficiency and the impeller caused by the liquid water entering the turbine is avoided. Therefore, the tail exhaust body needs to be provided with the water diversion piece to separate the liquid water after passing through the air tail exhaust throttle valve, but a pipeline is connected between the water diversion piece and the tail exhaust throttle valve, when the engine is in an inclined state, the pipeline between the water diversion piece and the throttle valve can be provided with the liquid water which cannot be discharged, the liquid water is attached to the throttle valve after the fuel cell is shut down, and when the ambient temperature is low, the liquid water is frozen to cause the throttle valve to be frozen and cannot be normally opened.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides a fuel cell system, fuel cell and vehicle with supplementary drainage, the pipeline that exists among the at least partial solution prior art can have liquid water to discharge with the tail row throttle valve when the engine is in the tilt state, causes the liquid water to attach to the problem of tail row throttle valve after fuel cell shuts down.

In a first aspect, an embodiment of the present disclosure provides a fuel cell system with auxiliary drainage, including an air compression and expansion all-in-one machine, an intercooler, an intake throttle valve, a humidifier, a pile, a tail exhaust throttle valve, and a water diversion component;

the air compression and expansion integrated machine comprises a pressure wheel end and a turbine end, air enters an intercooler after being compressed by the pressure wheel end, air output by the intercooler is transmitted to a humidifier after passing through an air inlet throttle valve, and the air after passing through the humidifier enters the galvanic pile;

the product after the galvanic pile reaction is sequentially conveyed to a water diversion piece through a humidifier and a tail exhaust throttle valve, the water diversion piece performs gas-water separation on the product after the reaction, separated gas is conveyed to the turbine end, and separated liquid is discharged through a water outlet which is arranged on the water diversion piece;

and the bottom of the water diversion piece is provided with a capillary tube.

Optionally, a plurality of capillaries are arranged at the bottom of the water diversion part, and the diameter parameters of the capillaries include various parameters.

Optionally, the piece that divides water includes first end and second end, first end and turbine end intercommunication, the second end and tail row throttle valve intercommunication, between first end and the outlet and second end and outlet all set up the capillary, the capillary utilizes capillary effect to absorb liquid water to the capillary in, imports and exports the potential difference that exists with liquid water discharge capillary through the capillary.

Optionally, the number of the capillary tubes is set according to the volume of a pipeline between the tail row throttle valve and the turbine end.

Optionally, the water outlet is arranged at a low point of the water diversion member, and the low point is a low point when the fuel cell is in a horizontal state.

Optionally, the inlet of the turbine end is higher than the outlet of the water diversion piece.

Optionally, the turbine end is provided with a tail exhaust port, and the tail exhaust port is lower than the inlet of the turbine end.

Optionally, the air filter and the flowmeter are further included, and the air is sequentially transmitted to the pressure wheel end after passing through the air filter and the flowmeter.

In a second aspect, embodiments of the present disclosure provide a fuel cell having the fuel cell system with auxiliary water drainage as described in any one of the first aspects.

In a third aspect, embodiments of the present disclosure provide a vehicle having the fuel cell of the second aspect.

The utility model provides a fuel cell system with supplementary drainage, fuel cell and vehicle, the fuel cell system with supplementary drainage wherein, the bottom through the piece that divides water sets up the capillary, the capillary utilizes the capillary effect to divide the liquid water in the piece that divides water to discharge by oneself, because of the capillary effect drainage of capillary is abundant, thereby avoid fuel cell shutdown back liquid water to adhere to at the tail row throttle, and because of liquid water is discharged completely, when having avoided ambient temperature low, liquid water freezes and leads to the tail row throttle to be frozen and can't normally open.

Drawings

The foregoing and other objects, features and advantages of the disclosure will be apparent from the following more particular descriptions of exemplary embodiments of the disclosure as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the disclosure.

Fig. 1 is a schematic block diagram of a fuel cell system with auxiliary water drainage provided by an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a horizontal state of a water diversion component according to an embodiment of the present disclosure;

FIGS. 3 and 4 are schematic structural views illustrating the inclined state of the water diversion member according to the embodiment of the present disclosure;

description of the drawings:

1-air filtering; 2-a flow meter; 301-pinch roller end; 302-turbine end; 4-an intercooler; 5-an intake throttle; 6-a humidifier; 7-electric pile; 8-tail exhaust throttle valve; 9-a water diversion member; 10-a water outlet; 11-tail row; 12-a first end; 13-a capillary tube; 14-second end.

Detailed Description

The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

It is to be understood that the embodiments of the present disclosure are described below by way of specific examples, and that other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure herein. It is to be understood that the embodiments described are only a few embodiments of the present disclosure, and not all embodiments. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without inventive step, are intended to be within the scope of the present disclosure.

It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the disclosure, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present disclosure, and the drawings only show the components related to the present disclosure rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.

In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.

For easy understanding, as shown in fig. 1, the present embodiment discloses a fuel cell system with auxiliary water drainage, which includes an air compression and expansion all-in-one machine, an intercooler 4, an intake throttle valve 5, a humidifier 6, a stack 7, a tail exhaust throttle valve 8 and a water diversion member 9;

the air compression and expansion integrated machine comprises a pinch roller end 301 and a turbine end 302, air is compressed by the pinch roller end 301 and then enters an intercooler 4, air output by the intercooler 4 is transmitted to a humidifier 6 through an air inlet throttle valve 5, and the air passing through the humidifier 6 enters a galvanic pile 7;

a product after the reaction of the galvanic pile 7 passes through the humidifier 6 and the tail exhaust throttle valve 8 in sequence and is then conveyed to the water diversion piece 9, the water diversion piece 9 performs gas-water separation on the product after the reaction, the separated gas is conveyed to the turbine end 302, the separated liquid is discharged through the water discharge port 10, and the water discharge port 10 is arranged on the water diversion piece 9;

the bottom of the water diversion piece 9 is provided with a capillary tube 13.

Optionally, a plurality of capillary tubes 13 are arranged at the bottom of the water diversion piece 9, and the tube diameter parameters of the capillary tubes 13 include multiple types. That is, the bottom of the water diversion part 9 is provided with capillaries 13 with various pipe diameters, for example, 10 capillaries 13 are provided, and there may be 2 pipe diameters, for example, the pipe diameter of 5 capillaries 13 is a, and the pipe diameter of the other 5 capillaries 13 is B. The tube diameters of 3 capillaries 13 may be a, and the tube diameters of the other 7 capillaries 13 may be B, etc. There may also be 3 tube diameters, such as 3 capillaries 13 with a tube diameter, 3 capillaries 13 with B tube diameter, 4 capillaries 13 with C tube diameter, etc. In this embodiment, there is no limitation on the number of capillaries 13 having different tube diameters and the number of capillaries having the same tube diameter.

Optionally, the water diversion part 9 includes a first end 12 and a second end 14, the first end 12 communicates with the turbine end 302, the second end 14 communicates with the tail throttle valve 8, capillary tubes 13 are arranged between the first end 12 and the drain port 10 and between the second end 14 and the drain port 10, the capillary tubes 13 suck liquid water into the capillary tubes 13 by using capillary effect, and the liquid water is discharged out of the capillary tubes 13 through potential difference existing at the inlet and outlet of the capillary tubes 13.

Optionally, the number of the capillary tubes 13 is set according to the volume of the pipeline between the tail throttle valve 8 and the turbine end 302.

Alternatively, the water discharge port 10 is provided at a low point of the water dividing member 9, which is a low point when the fuel cell is in a horizontal state. The fuel cell is in a horizontal state as shown in fig. 2, and in an inclined state as shown in fig. 3 and 4. The horizontal state of the present embodiment is a normal state of the fuel cell, such as setting the fuel cell to an inclined state, and the low point in the inclined state is also a routine alternative for those skilled in the art.

Optionally, the inlet of the turbine end 302 is higher than the outlet of the water dividing member 9.

Optionally, the turbine end 302 is provided with a tail row 11 outlet, and the tail row 11 outlet is lower than the inlet of the turbine end 302.

Optionally, the air filter further comprises an air filter 1 and a flow meter 2, and the air passes through the air filter 1 and the flow meter 2 in sequence and then is conveyed to the pressure wheel end 301.

In a specific application scenario, air enters the flowmeter 2 from the air filter 1, is compressed through the pressure wheel end 301, sequentially passes through the intercooler 4 and the air intake throttle valve 5, enters the humidifier 6, is humidified by the humidifier 6, and then enters the electric pile 7, and products remaining after reaction of the electric pile 7 comprise gas and generated liquid water. The product is dehumidified by the humidifier 6 and then enters the water diversion piece 9 through the tail exhaust throttle valve 8, liquid water in a pipeline in the water diversion piece 9 is separated, the liquid water is discharged through the water discharge port 10, gas passing through the water diversion piece 9 enters the turbine end 302, the turbine performs adiabatic expansion work, and the power consumption of the pressure end is reduced through the adiabatic expansion work. To avoid liquid water in the turbine pipe entering the turbine end 302, the inlet of the turbine end 302 is located higher than the outlet of the water separator 9, and liquid water is prevented from flowing back to the turbine end 302. A self-draining pipeline device is arranged in the water diversion piece 9, and capillary tubes 13 with different pipe diameters are respectively arranged between the water diversion piece 9 and the tail row throttle valve 8 and between the water diversion piece 9 and the turbine connecting pipeline; one end of the capillary 13 is communicated with a water-dividing outlet water-discharging low point, and the other end is respectively communicated with a pipeline for connecting the water-dividing piece 9 with the tail exhaust throttle valve 8 and a pipeline for connecting the water-dividing piece 9 with the turbine. The capillary tubes 13 are laid on the bottom layer of the water diversion piece 9, and the specific number can be set according to the volume of a pipeline between the tail exhaust throttle valve 8 and the turbine end 302. When the fuel cell engine fails and is shut down and cannot be normally purged, certain liquid water and condensed liquid water of saturated steam can exist in the water diversion part 9 and the pipeline thereof, when the fuel cell engine is in an inclined state, the liquid water can be accumulated at low points of two sides of the water diversion part 9, at the moment, the capillary tube 13 on the bottom layer of the water diversion part 9 can absorb the liquid water appearing to the capillary tube 13 by utilizing the capillary effect, the capillary tube 13 is discharged with the liquid water by a certain potential difference at the inlet and the outlet of the capillary tube 13, so that the liquid water is prevented from being stored at two ends of the water diversion part 9, and the parts on two sides fail after freezing at low temperature.

The foregoing describes the general principles of the present disclosure in conjunction with specific embodiments, however, it is noted that the advantages, effects, etc. mentioned in the present disclosure are merely examples and are not limiting, and they should not be considered essential to the various embodiments of the present disclosure. Furthermore, the foregoing disclosure of specific details is for the purpose of illustration and description and is not intended to be limiting, since the disclosure is not intended to be limited to the specific details so described.

In the present disclosure, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, and the block diagrams of devices, apparatuses, devices, systems, etc. referred to in the present disclosure are used merely as illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. These devices, apparatuses, devices, systems may be connected, arranged, configured in any manner, as will be appreciated by those skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably therewith. The words "or" and "as used herein mean, and are used interchangeably with, the word" and/or, "unless the context clearly dictates otherwise. The word "such as" is used herein to mean, and is used interchangeably with, the phrase "such as but not limited to".

Also, as used herein, "or" as used in a list of items beginning with "at least one" indicates a separate list, such that, for example, a list of "A, B or at least one of C" means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word "exemplary" does not mean that the described example is preferred or better than other examples.

It is also noted that in the systems and methods of the present disclosure, components or steps may be decomposed and/or re-combined. These decompositions and/or recombinations are to be considered equivalents of the present disclosure.

Various changes, substitutions and alterations to the techniques described herein may be made without departing from the techniques of the teachings as defined by the appended claims. Moreover, the scope of the claims of the present disclosure is not limited to the particular aspects of the process, machine, manufacture, composition of matter, means, methods and acts described above. Processes, machines, manufacture, compositions of matter, means, methods, or acts, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or acts.

The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the disclosure. Thus, the present disclosure is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit embodiments of the disclosure to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.

Claims (10)

1. A fuel cell system with auxiliary drainage is characterized by comprising an air compression and expansion integrated machine, an intercooler, an air inlet throttle valve, a humidifier, an electric pile, a tail exhaust throttle valve and a water diversion component;

the air compression and expansion integrated machine comprises a pressure wheel end and a turbine end, air enters an intercooler after being compressed by the pressure wheel end, air output by the intercooler is transmitted to a humidifier after passing through an air inlet throttle valve, and the air after passing through the humidifier enters the galvanic pile;

the product after the galvanic pile reaction is sequentially conveyed to a water diversion piece through a humidifier and a tail exhaust throttle valve, the water diversion piece performs gas-water separation on the product after the reaction, separated gas is conveyed to the turbine end, and separated liquid is discharged through a water outlet which is arranged on the water diversion piece;

and the bottom of the water diversion piece is provided with a capillary tube.

2. The fuel cell system with the auxiliary water drainage function according to claim 1, wherein a plurality of capillary tubes are arranged at the bottom of the water diversion member, and the diameter parameters of the capillary tubes comprise various parameters.

3. The fuel cell system with auxiliary drain of claim 1, wherein the water diversion member comprises a first end and a second end, the first end in communication with the turbine end and the second end in communication with the tail gate throttle, the first end and the drain opening having capillaries disposed therebetween and the second end and the drain opening.

4. The fuel cell system with auxiliary drain of claim 2, wherein the number of capillaries is set according to the volume of the conduit between the tail throttle and the turbine end.

5. The fuel cell system with auxiliary water discharge according to any one of claims 1 to 4, wherein the water discharge port is provided at a low point of the water dividing member, the low point being a low point when the fuel cell is in a horizontal state.

6. The fuel cell system with auxiliary drain of any of claims 1 to 4, wherein the inlet of the turbine end is higher than the water separator outlet.

7. The fuel cell system with auxiliary drain of claim 6, wherein the turbine end is provided with a tail drain port that is lower than the turbine end inlet.

8. The fuel cell system with the auxiliary water drainage function according to any one of claims 1 to 4, further comprising an air filter and a flow meter, wherein the air is conveyed to the pressure wheel end after passing through the air filter and the flow meter in sequence.

9. A fuel cell system having the fuel cell system with auxiliary water discharge according to any one of claims 1 to 8.

10. A vehicle characterized by having the fuel cell according to claim 9.

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