Hydrogen fuel cell anode module and hydrogen fuel cell
By designing an integrated hydrogen fuel cell anode module and using the hydrogen inlet module and the second water separator for water separation, the problem of liquid water condensation in traditional systems is solved, the stability and performance of the stack are improved, and integrated is achieved.
Patent Information
- Application Number
- CN202420673117.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-04-02
AI Technical Summary
Traditional hydrogen fuel cell anode system is prone to condense liquid water at the mixing point, affecting the performance and stability of the stack, and cannot achieve integration.
A hydrogen fuel cell anode module is designed, and a spaced-distributed hydrogen inlet and hydrogen outlet are set up through an integrated integrated stack. The hydrogen inlet module and a second water separator are used for water separation treatment to ensure that the hydrogen is dried and integrated.
It effectively avoids condensation water from hydrogen entering the stack, improves the stability and performance of the stack, and realizes the integration of fuel cells, ensuring safe use.
Smart Images
Figure CN222619783U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fuel cells, in particular to a hydrogen fuel cell anode module and a hydrogen fuel cell. Background Art
[0002] With the development of fuel cell applications, the market currently places higher demands on system integration and stability;
[0003] The traditional anode system includes an independent hydrogen inlet valve group, a steam-water separator and a hydrogen circulation pump / mixer, and uses pipes to connect the various components. In addition, since the temperature of the hydrogen source from the hydrogen bottle is low and the temperature of the circulating hydrogen is high, liquid water will condense at the mixing point, which can easily affect the performance of the fuel cell stack and cause great trouble to the stability of the fuel cell stack. At the same time, it is also impossible to achieve integration. Utility Model Content
[0004] The main purpose of the utility model is to provide a hydrogen fuel cell anode module and a hydrogen fuel cell, aiming to solve the technical problem that liquid water will condense at the mixing point of the anode system in the related technology, seriously affecting the performance of the fuel cell stack, causing great trouble to the stability of the fuel cell stack, and at the same time, it is impossible to achieve integration.
[0005] To achieve the above objectives, in a first aspect, the utility model provides a hydrogen fuel cell anode module, wherein the hydrogen fuel cell anode module is integrated into a hydrogen fuel cell stack, and the stack is provided with hydrogen inlets and hydrogen outlets that are spaced apart;
[0006] The hydrogen fuel cell anode module comprises:
[0007] A hydrogen inlet module, the hydrogen inlet module comprising a first water separator, a mixer and an injection branch, the first water separator and the injection branch are both detachably mounted on the mixer, the first water separator is in communication with the hydrogen inlet, and the first water separator is in sealed communication with a first drainage pipeline, the injection branch is in sealed communication with an external hydrogen source, the injection branch is provided with mutually communicating nozzles, the nozzles are arranged toward the mixer, and the nozzles are in communication with the external hydrogen source through a hydrogen shut-off valve; and,
[0008] a second water separator, wherein the second water separator seals and connects the hydrogen outlet with the mixer, and a second drainage pipeline is seal-connected on the second water separator;
[0009] The tail gas discharged from the hydrogen outlet is separated from the water vapor by the second water separator and flows into the mixer to mix with the hydrogen sprayed into the mixer by the nozzle to form a mixed gas. The mixed gas is separated from the water vapor by the first water separator and flows into the fuel cell stack.
[0010] Optionally, a hydrogen medium-pressure sensor is further provided between the jet branch and the hydrogen shut-off valve, and the hydrogen medium-pressure sensor is detachably connected to the mixer.
[0011] Optionally, there are at least two jet branches, all of which are arranged in parallel, all of which are arranged toward the mixer, and all of which converge to form a joint connected to the hydrogen shut-off valve, and the hydrogen medium-pressure sensor is installed on the joint to detect the medium-pressure of all of the jet branches.
[0012] Optionally, a hydrogen proportional valve is further provided on the injection branch, and the hydrogen proportional valve is provided between the nozzle and the medium pressure sensor.
[0013] Optionally, the hydrogen fuel cell anode module also includes a valve seat, a flow channel is formed on the valve seat, and a first mounting hole for detachably connecting to the hydrogen shut-off valve, a second mounting hole for detachably connecting to the hydrogen medium-pressure sensor, and a third mounting hole for detachably connecting to the hydrogen proportional valve are formed on the valve seat, and the hydrogen inlet module is installed in the flow channel.
[0014] Optionally, the hydrogen shut-off valve is detachably connected to the first mounting hole via bolts.
[0015] Optionally, the hydrogen medium-pressure sensor is detachably connected to the second mounting hole via bolts, and the hydrogen proportional valve is detachably connected to the third mounting hole via bolts.
[0016] Optionally, the first drainage pipeline is further connected with a tail drain valve, and the tail drain valve is detachably connected to the valve seat.
[0017] Optionally, the second drainage pipeline is also connected with a drain valve, and the drain valve is detachably connected to the valve seat.
[0018] Based on the same technical concept, in a second aspect, the utility model provides a hydrogen fuel cell, comprising the hydrogen fuel cell anode module described in the first aspect.
[0019] The technical solution of the utility model is to set up a fuel cell stack, a hydrogen inlet module and a second water separator. When it is used, the hydrogen supplied by the external hydrogen source enters the fuel cell stack from the hydrogen inlet port after the first water separation through the mixer in the hydrogen inlet module and the first water separator. After the reaction of the fuel cell stack, the hydrogen is discharged from the fuel cell stack from the hydrogen outlet port, and when discharged from the fuel cell stack, the second water separation is carried out through the second water separator. After the second water separation, the tail gas mixture enters the mixer again to be mixed with the hydrogen supplied by the external hydrogen source, thereby realizing the function of removing the condensed water carried in the hydrogen supplied by the external hydrogen source and the condensed water carried in the tail gas after the reaction on the basis of realizing integration. When the utility model is used, the first water separator and the second water separator can be used to separate the hydrogen or the hydrogen mixture entering the fuel cell stack, thereby avoiding the condensed water in the hydrogen or the hydrogen mixture entering the fuel cell stack to affect the performance of the fuel cell stack, and will not affect the stability of the fuel cell stack, thereby ensuring the safe use of the fuel cell. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0021] Figure 1 A schematic diagram of a hydrogen fuel cell anode module according to an example of the present invention;
[0022] Figure 2 This is a schematic diagram of the structure of a hydrogen fuel cell integrated module according to an example of the present utility model;
[0023] Figure 3 This is a schematic diagram of the top view of the hydrogen fuel cell integrated module of the present utility model;
[0024] Figure 4 for Figure 3 Schematic diagram of the structure of the AA section of the example.
[0025]
[0026]
[0027] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various mechanisms under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0030] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0032] The utility model concept of the utility model is further explained below in conjunction with some specific implementation methods.
[0033] The utility model provides a hydrogen fuel cell anode module and a hydrogen fuel cell.
[0034] like Figures 1 to 4 As shown, the utility model discloses an embodiment of a hydrogen fuel cell anode module and a hydrogen fuel cell.
[0035] See also Figure 1-Figure 4 The anode module of the hydrogen fuel cell is integrated into the stack 100 of the hydrogen fuel cell. The stack 100 is provided with hydrogen inlets 110 and hydrogen outlets 120 which are spaced apart.
[0036] The hydrogen fuel cell anode module includes a hydrogen inlet module 200 and a second water separator 400, the hydrogen inlet module 200 includes a first water separator 230, a mixer 220 and an air jet branch 210, the first water separator 230 and the air jet branch 210 are both detachably mounted on the mixer 220, the first water separator 230 is connected to the hydrogen inlet 110, and the first water separator 230 is sealed and connected to a first drainage pipeline 280, the air jet branch 210 is sealed and connected to an external hydrogen source 300, and the air jet branch 210 is provided with nozzles 221 that are interconnected, and the spray nozzles 221 are connected to the external hydrogen source 300. The nozzle 221 is arranged toward the mixer 220, and the nozzle 221 is connected to the external hydrogen source 300 through the hydrogen shut-off valve 224. The second water separator 400 seals and connects the hydrogen outlet 120 with the mixer 220220, and the second water separator 400 is sealed and connected with a second drainage pipeline 290. The tail gas discharged from the hydrogen outlet 120 flows into the mixer 220 after water vapor separation by the second water separator 400 and is mixed with the hydrogen sprayed into the mixer 220 by the nozzle 221 to form a mixed gas, and the mixed gas flows into the fuel cell stack 100 after water vapor separation by the first water separator 230.
[0037] It should be particularly and clearly stated that the first water separator 230 and the second water separator 400 illustrated in the present embodiment are both equipment or devices in the prior art that can separate condensed water carried in gases such as hydrogen. They are only used in the present embodiment and do not involve improvement or design of their specific structures, so they will not be described one by one here.
[0038] Of course, in the exemplary embodiment, the various structures or components in the exemplary hydrogen fuel cell anode module are integrated, that is, the communication relationship between the first water separator 230, the mixer 220, the second water separator 400 and other components is preferably started from the channel therein, and when the first water separator 230 and the second water separator 400 are installed on the mixer 220, the first water separator 230 and the second water separator 400 can be sealed and connected with the channels at the corresponding positions on the mixer 220. Through this installation method, the function of integrating the hydrogen fuel cell anode module can be realized.
[0039] Of course, in actual use, since the first water separator 230 and the second water separator 400 can be detachably installed on the mixer 220, the utility model can also integrate the first water separator 230, the second water separator 400 and the mixer 220 during use, thereby reducing the space occupied by the anode module and improving the degree of integration.
[0040] Furthermore, by providing a hydrogen shut-off valve 224 between the medium-pressure sensor 223 and the external hydrogen source 300, the utility model can control the anode module when in use, thereby further improving the safety of the anode module.
[0041] In this embodiment, by setting the fuel cell 100, the hydrogen inlet module 200 and the second water separator 400, when used, the hydrogen supplied by the external hydrogen source 300 enters the fuel cell 100 from the hydrogen inlet port 110 after the first water separation through the mixer 220220 in the hydrogen inlet module 200 and the first water separator 230, and is discharged from the fuel cell 100 from the hydrogen outlet port 120 after the reaction of the fuel cell 100, and is discharged from the fuel cell 100 through the second water separator 400 for the second water separation, and the exhaust gas mixture after the second water separation enters the mixer 220220 and the outside The hydrogen delivered by the hydrogen source is mixed, and then the condensed water carried in the hydrogen supplied by the external hydrogen source and the condensed water carried in the tail gas after the reaction are removed on the basis of integration. When in use, the utility model can utilize the first water separator 230 and the second water separator 400 to separate the hydrogen or hydrogen mixture entering the fuel cell stack 100, thereby preventing the condensed water in the hydrogen or hydrogen mixture from entering the fuel cell stack 100 to affect the performance of the fuel cell stack 100, and will not affect the stability of the fuel cell stack 100, thereby ensuring the safe use of the fuel cell.
[0042] In some specific embodiments, a hydrogen medium-pressure sensor 223 is further provided between the jet branch 210 and the hydrogen shut-off valve 224 , and the hydrogen medium-pressure sensor 223 is detachably connected to the mixer 220 .
[0043] In this embodiment, a medium pressure sensor 223 is provided in a sealed connection between the first branch and the external hydrogen source 300, and the medium pressure sensor 223 is used to monitor the pressure of hydrogen entering the first branch, thereby effectively improving the safety of the hydrogen fuel cell anode module.
[0044] In some specific embodiments, there are at least two jet branches 210, all of which are arranged in parallel, all of the nozzles 221 are arranged toward the mixer 220, and all of the jet branches 210 converge to form a joint connected to the hydrogen shut-off valve 224, and a hydrogen medium-pressure sensor 223 is installed at the joint to detect the medium pressure of all of the jet branches 210.
[0045] In this embodiment, by providing a mixer 220 and at least one jet branch 210, when in use, hydrogen is introduced into the mixer 220 by using at least one jet branch 210, so that the utility model can effectively ensure that sufficient hydrogen is supplied to the fuel cell stack 100 when in use. At the same time, since the first interface 240 and the second interface 250 are provided on the mixer 220, the utility model can also enable the first water separator 230 and the second water separator 400 to remove condensed water from the external hydrogen source 300 and the tail gas discharged from the fuel cell stack 100, respectively, when in use, effectively ensuring the dryness of the hydrogen discharged into the hydrogen inlet 110.
[0046] It should be particularly and clearly stated that in order to ensure the total amount of hydrogen entering the fuel cell stack 100 from the mixer 220 through the hydrogen inlet 110, the number of jet branches 210 illustrated in the present embodiment is at least one jet branch 210. In the present embodiment, two jet branches 210 are preferably used. When installing the jet branches 210, at least two jet branches 210 should be arranged in parallel. The parallel arrangement can increase the amount of hydrogen entering the mixer 220, thereby effectively ensuring the power of the fuel cell stack 100.
[0047] In some specific embodiments, a hydrogen proportional valve 222 is further provided on the jet branch 210 , and the hydrogen proportional valve 222 is provided between the nozzle 221 and the medium pressure sensor 223 .
[0048] In this embodiment, by setting a hydrogen proportional valve 222, the utility model can use the set hydrogen proportional valve 222 to adjust and control the hydrogen beam sprayed into the mixer 220 through the nozzle 221 when in use, thereby achieving the purpose of adjusting the power of the fuel cell stack 100.
[0049] In some specific embodiments, the hydrogen fuel cell anode module also includes a valve seat 500, a flow channel 510 is formed on the valve seat 500, and a first mounting hole for detachably connecting to a hydrogen shut-off valve 224, a second mounting hole for detachably connecting to a hydrogen medium-pressure sensor 223, and a third mounting hole for detachably connecting to a hydrogen proportional valve 222 are formed on the valve seat 500, and the hydrogen inlet module 200 is installed in the flow channel 510.
[0050] The hydrogen shut-off valve 224 is detachably connected to the first mounting hole by bolts, the hydrogen medium-pressure sensor 223 is detachably connected to the second mounting hole by bolts, and the hydrogen proportional valve 222 is detachably connected to the third mounting hole by bolts.
[0051] In some specific embodiments, the first drainage pipeline 280 is also connected to a tail drain valve 260 , and the tail drain valve 260 is detachably connected to the valve seat 500 .
[0052] In this embodiment, by setting a tail drain valve 260 on the first drain pipe 280 and using the tail drain valve 260 to control the opening and closing of the first drain pipe 280, the hidden danger of hydrogen leakage from the first drain pipe 280 due to the absence of condensed water in the first drain pipe 280 can be effectively avoided.
[0053] In some specific embodiments, the second drainage pipeline 290 is also connected to a drain valve 270 , and the drain valve 270 is detachably connected to the valve seat 500 .
[0054] In this embodiment, by setting a drain valve 270 on the second drainage pipe 290, the utility model can use the drain valve 270 to control the opening and closing of the second drainage pipe 290 when in use, which can effectively avoid the hidden danger of hydrogen leakage from the second drainage pipe 290 due to the absence of condensed water in the second drainage pipe 290.
[0055] Based on the same technical concept, in a second aspect, the utility model provides a hydrogen fuel cell, comprising the hydrogen fuel cell anode module of the first aspect.
[0056] It should be noted that the functions that can be realized by each module in the hydrogen fuel cell provided in this embodiment and the corresponding technical effects achieved can refer to the description of the specific implementation methods in each embodiment of the hydrogen fuel cell anode module illustrated in the previous embodiments of the utility model. For the sake of brevity of the specification, they will not be repeated here.
[0057] The above description is only an optional embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.
Claims
1. A hydrogen fuel cell anode module, characterized in that: The hydrogen fuel cell anode module is integrated into the hydrogen fuel cell stack, and the stack is formed with hydrogen inlets and hydrogen outlets that are spaced apart; The hydrogen fuel cell anode module comprises: A hydrogen inlet module, the hydrogen inlet module comprising a first water separator, a mixer and an injection branch, the first water separator and the injection branch are both detachably mounted on the mixer, the first water separator is in communication with the hydrogen inlet, and the first water separator is in sealed communication with a first drainage pipeline, the injection branch is in sealed communication with an external hydrogen source, the injection branch is provided with mutually communicating nozzles, the nozzles are arranged toward the mixer, and the nozzles are in communication with the external hydrogen source through a hydrogen shut-off valve; and, a second water separator, wherein the second water separator seals and connects the hydrogen outlet with the mixer, and a second drainage pipeline is seal-connected on the second water separator; The tail gas discharged from the hydrogen outlet is separated from the water vapor by the second water separator and flows into the mixer to mix with the hydrogen sprayed into the mixer by the nozzle to form a mixed gas. The mixed gas is separated from the water vapor by the first water separator and flows into the fuel cell stack.
2. The hydrogen fuel cell anode module according to claim 1, characterized in that: A hydrogen medium-pressure sensor is also provided between the jet branch and the hydrogen shut-off valve, and the hydrogen medium-pressure sensor is detachably connected to the mixer.
3. The hydrogen fuel cell anode module according to claim 2, characterized in that: The jet branches have at least two, all of which are arranged in parallel, all of which are arranged toward the mixer, and all of which converge to form a joint connected to the hydrogen shut-off valve, and the hydrogen medium-pressure sensor is installed on the joint to detect the medium-pressure of all of the jet branches.
4. The hydrogen fuel cell anode module according to claim 3, characterized in that: The jet branch is also provided with a hydrogen proportional valve, and the hydrogen proportional valve is provided between the nozzle and the medium pressure sensor.
5. The hydrogen fuel cell anode module according to claim 4, characterized in that: The hydrogen fuel cell anode module also includes a valve seat, a flow channel is formed on the valve seat, and a first mounting hole for detachably connecting to the hydrogen shut-off valve, a second mounting hole for detachably connecting to the hydrogen medium-pressure sensor, and a third mounting hole for detachably connecting to the hydrogen proportional valve are formed on the valve seat, and the hydrogen inlet module is installed in the flow channel.
6. The hydrogen fuel cell anode module according to claim 5, characterized in that: The hydrogen shut-off valve is detachably connected to the first mounting hole via bolts.
7. The hydrogen fuel cell anode module according to claim 6, characterized in that: The hydrogen medium-pressure sensor is detachably connected to the second mounting hole via bolts, and the hydrogen proportional valve is detachably connected to the third mounting hole via bolts.
8. The hydrogen fuel cell anode module according to claim 5, characterized in that: The first drainage pipeline is also connected with a tail drain valve, and the tail drain valve is detachably connected to the valve seat.
9. The hydrogen fuel cell anode module according to claim 5, characterized in that: The second drainage pipeline is also connected with a drain valve, and the drain valve is detachably connected to the valve seat.
10. A hydrogen fuel cell, characterized in that: Comprising a hydrogen fuel cell anode module as claimed in any one of claims 1 to 9.