CN212725385U - Solid hydrogen storage and supply fuel cell system - Google Patents
Solid hydrogen storage and supply fuel cell system Download PDFInfo
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- CN212725385U CN212725385U CN202021889962.4U CN202021889962U CN212725385U CN 212725385 U CN212725385 U CN 212725385U CN 202021889962 U CN202021889962 U CN 202021889962U CN 212725385 U CN212725385 U CN 212725385U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The utility model provides a solid-state hydrogen storage and supply fuel cell system, include: a hydrogen storage device storing a metal hydride; the fuel cell device is communicated with the hydrogen storage device through a gas pipeline, so that the hydrogen storage device supplies hydrogen serving as a power generation reducing agent to the fuel cell device through the gas pipeline; the fuel cell device is provided with an air inlet, and outside air enters the fuel cell device through the air inlet to be used as an oxidant for power generation; a control device electrically connected to the fuel cell device; the electric heating element is electrically connected with the control device and is coated outside the hydrogen storage device; wherein the electrical energy generated by the fuel cell device is supplied to the electrical heating element by the control device. The embodiment of the utility model provides a technical scheme, electric heating member is according to the heat that the different hydrogen demand quick adjustment of fuel cell device provided for storing up hydrogen device to accurate control stores up hydrogen device's the flow of putting hydrogen.
Description
Technical Field
The utility model belongs to the technical field of hydrogen fuel cell, in particular to solid-state hydrogen storage and supply fuel cell system.
Background
A Proton Exchange Membrane Fuel Cell (PEMFC) is an electrochemical device that directly generates electricity from fuel (hydrogen) and oxidant (mainly Oz) in one step, has advantages of low operating temperature, high energy conversion efficiency, cleanliness and no pollution, and thus is considered to be one of the most selective and competitive power sources to replace the current automobile power.
During the operation of the fuel cell, the supply of hydrogen is an important link, and Metal Hydride (MH) has a great application prospect as a carrier of gaseous hydrogen storage in the fuel cell. Metal Hydride (MH) comprising AB5Type AB2Type AB, BCC, etc., and has extremely high volumetric hydrogen storage density (100g L)-1Even higher) and at suitable temperatures, having a lower equilibrium hydrogen pressure combined with the endothermic nature of the metal hydride discharge reaction results in a high safety of metal hydride based hydrogen storage systems. The metal hydride has endothermic characteristic in the hydrogen discharge reaction as AB5(LaNi5) For example, the reaction enthalpy is-27 kJ/mol H2The heat required by hydrogen discharge accounts for about 1/4 of the electric energy generated by the fuel cell, and the electric energy generated by the fuel cell is partially supplied to the metal hydride hydrogen storage tank, so that the continuous hydrogen discharge of the metal hydride hydrogen storage tank and the continuous discharge of the fuel cell can be ensured.
In view of the heat absorption characteristic of the metal hydride during the hydrogen releasing reaction, in the prior art, the water-heating jacket is arranged on the hydrogen storage tank, and the cooling water which is in a high temperature after exchanging heat with the fuel cell stack in the cooling system is communicated with the water-heating jacket so as to utilize the heat of the fuel cell stack, but because the specific heat capacity of the water is large, the water temperature in the water-heating jacket cannot be changed rapidly by the heating mode, so that the heat supply to the hydrogen storage tank can be adjusted rapidly according to the demand of the hydrogen supply quantity.
SUMMERY OF THE UTILITY MODEL
The present invention aims at least solving one of the technical problems existing in the prior art or the related art.
In view of the above, an object of the present invention is to provide a fuel cell system for solid-state hydrogen storage and supply.
In order to achieve the above object, the present invention provides a fuel cell system for supplying hydrogen by storing hydrogen in a solid state, comprising: a hydrogen storage device storing a metal hydride; the fuel cell device is communicated with the hydrogen storage device through a gas pipeline, so that the hydrogen storage device supplies hydrogen serving as a power generation reducing agent to the fuel cell device through the gas pipeline; the fuel cell device is provided with an air inlet, and outside air enters the fuel cell device through the air inlet to be used as an oxidant for power generation; a control device electrically connected to the fuel cell device; the electric heating element is electrically connected with the control device and is coated outside the hydrogen storage device; the hydrogen and the oxygen in the fuel cell device react under the action of catalysts on a cathode and an anode respectively to generate water and release electric energy, and the electric energy generated by the fuel cell device supplies power to the electric heating element through the control device.
According to the fuel cell system of the solid-state hydrogen storage and supply, the hydrogen storage device supplies hydrogen to the fuel cell device through the gas transmission pipe, so that the fuel cell device can continuously obtain hydrogen as a power generation reducing agent, and an air inlet is arranged on the fuel cell device, air in the outside atmosphere enters the fuel cell device through the air inlet, oxygen which reacts with the hydrogen and serves as an oxidant is provided for the fuel cell device, electric energy is generated through the oxidation reduction reaction of the hydrogen and the oxygen in the fuel cell device, wherein the control device is electrically connected with the fuel cell device, the electric energy generated by the fuel cell device can be supplied to the control device, so that the control device normally operates, and an electric heating element which is coated outside the hydrogen storage device is also arranged, the electric heating element is electrically connected with the control device, so that the fuel cell device supplies electric energy to the electric heating element through the control device, the electric heating element is heated to heat the hydrogen storage device and provide heat for the hydrogen releasing reaction of the metal hydride in the hydrogen storage device; it should be noted that the electric heating element can rapidly change its temperature to rapidly provide the required heat for the hydrogen storage device.
Furthermore, the electric heating element is in a sheet shape and is attached to the outer wall of the hydrogen storage device.
Furthermore, the electric heating element is in a strip shape and is wound on the outer wall of the hydrogen storage device.
Further, the control device adjusts the heating power of the electric heating element according to the output power of the fuel cell device, specifically, when the output power of the fuel cell device is larger, it indicates that the amount of hydrogen gas required to be consumed by the fuel cell device is larger, the hydrogen discharging amount of the hydrogen storage device is larger, and the heat absorbed by the hydrogen discharging reaction of the metal hydride is more, so that the control device controls the electric heating element to increase the heating power to provide more heat, and meet the requirement of the heat absorbed by the hydrogen discharging reaction of the metal hydride, it needs to be emphasized that the temperature of the electric heating element can be rapidly changed by adjusting the heating power of the electric heating element, so that the electric heating element can rapidly adjust the heat provided for the hydrogen storage device according to different hydrogen demand amounts of the fuel cell device, so as to accurately control the hydrogen discharging amount of the hydrogen storage device, and avoid that the hydrogen amount required by the fuel cell device is not matched with the, causing an insufficient supply of electrical energy to the fuel cell device; in detail, when the output power required by the fuel cell device is larger, the required amount of hydrogen is larger, and if the hydrogen storage device cannot provide enough hydrogen, the electric energy generated by the fuel cell device cannot meet the requirement; and improving the utilization rate of hydrogen by the following method, wherein the control device controls the air outlet electromagnetic valve to be opened for a second time period after the air outlet electromagnetic valve is closed for the first time period according to the acquired load power signal; therefore, the utility model provides a technical scheme can effectively solve above-mentioned problem.
Further, the fuel cell system for solid-state hydrogen storage and supply further comprises: the pressure reducing valve is arranged on the gas transmission pipeline; the three-way valve is arranged on a gas transmission pipeline between the pressure reducing valve and the fuel cell device; the air inlet electromagnetic valve is arranged on an air conveying pipeline between the three-way valve and the fuel cell device; the pressure sensor is communicated with the first end of the three-way valve; the pressure reducing valve and the air inlet electromagnetic valve are respectively communicated with the second end and the third end of the three-way valve, and the control device is respectively electrically connected with the pressure sensor and the air inlet electromagnetic valve; the control device acquires a signal of the load power to control the air inlet electromagnetic valve to be opened or closed, and when the air pressure value measured by the pressure sensor is greater than 200kPa or less than 30kPa, the control device transmits an alarm signal to the alarm device and controls the air inlet electromagnetic valve to be closed.
Further, the fuel cell apparatus includes: the electric pile comprises a plurality of electric pile pole pieces; one end of the gas outlet pipeline is communicated with the galvanic pile, and the other end of the gas outlet pipeline is provided with a gas outlet; the air outlet electromagnetic valve is arranged on the air outlet pipeline; the control device controls the air outlet electromagnetic valve to be opened for a second time period after the air outlet electromagnetic valve is closed for the first time period according to the acquired load power signal so as to improve the utilization rate of the hydrogen.
Further, the fuel cell system for solid-state hydrogen storage and supply further comprises: the temperature sensor is arranged on the fuel cell device to acquire the temperature of the electric pile and is electrically connected with the control device; one end of each inspection line is connected with one pile pole piece, and the other end of each inspection line is electrically connected with the control device; when the temperature of the electric pile measured by the temperature sensor is higher than the set temperature, the control device transmits a high-temperature alarm signal to the alarm device and controls the fuel cell device to be closed; when the voltage of the pile pole piece measured by any inspection line is lower than the set voltage, the control device transmits a low-voltage alarm signal to the alarm device and controls the fuel cell device to be closed;
further, the fuel cell system for solid-state hydrogen storage and supply further comprises: the fan is arranged at the air outlet of the fuel cell device and is electrically connected with the control device, the control device controls the rotating speed of the fan according to the information of the load power and the temperature of the electric pile, and the rotating speed of the fan is in direct proportion to the load power and the temperature of the electric pile.
Further, the fuel cell system for solid-state hydrogen storage and supply further comprises: the storage battery is electrically connected with the control device and the fuel cell device respectively; and the control device controls the storage battery device to output the starting voltage when acquiring the starting signal.
Further, in the fuel cell system for solid-state hydrogen storage and supply, when the load power is greater than the output power of the fuel cell device, the control device controls the storage battery to output the auxiliary voltage.
Further, the fuel cell device supplies power to the control device through a power transmission line.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the electric heating element can rapidly adjust the heat provided for the hydrogen storage device according to different hydrogen demand of the fuel cell device so as to accurately control the hydrogen discharge amount of the hydrogen storage device and avoid the insufficient power supply of the fuel cell device due to the mismatch between the hydrogen amount required by the fuel cell device and the hydrogen supply amount of the hydrogen storage device; and improving the utilization rate of the hydrogen by the following method, wherein the control device controls the air outlet electromagnetic valve to be opened for a second time period after the air outlet electromagnetic valve is closed for the first time period according to the acquired load power signal.
Drawings
Figure 1 shows a schematic diagram of a solid state hydrogen storage and supply fuel cell system according to one embodiment of the present invention;
fig. 2 is a schematic view showing a connection structure of a stack and a fan according to an embodiment of the present invention;
fig. 3 is a schematic view showing a connection structure of the hydrogen storage device and the electric heating element according to an embodiment of the present invention;
fig. 4 is a schematic view showing a connection structure between the hydrogen storage device and the electric heating element according to an embodiment of the present invention.
The symbols in the figures are as follows:
1 hydrogen storage device, 2 fuel cell device, 22 electric pile, 24 air outlet pipeline, 242 air outlet, 244 air outlet electromagnetic valve, 26 temperature sensor, 28 polling line, 210 air inlet, 212 air outlet, 214 cathode, 216 anode, 3 air pipeline, 32 pressure reducing valve, 34 three-way valve, 36 air inlet electromagnetic valve, 38 pressure sensor, 4 fan, 5 control device, 6 electric heating element, 7 accumulator and 8 load.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention and its advantages will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the present invention provides a fuel cell system for solid-state hydrogen storage and supply, defining:
the fuel cell system for solid-state hydrogen storage and supply comprises: a hydrogen storage device 1 storing metal hydride, a fuel cell device 2, a control device 5 and an electric heating element 6; specifically, the hydrogen storage device 1 stores metal hydride (for example, MH), a bottleneck of the hydrogen storage device 1 is provided with a bottleneck valve, generally, the bottleneck valve is kept in an open state, when the control device 5 obtains a start-up signal, the hydrogen storage device 1 is communicated with the fuel cell device 2 through the gas pipeline 3 by opening the gas pipeline 3, meanwhile, the internal pressure of the hydrogen storage device 1 is reduced, because the metal hydride can release hydrogen under the atmospheric pressure condition, the hydrogen in the metal hydride is directly released from the material by the reduction of the internal pressure of the hydrogen storage device 1, and absorbs heat in the hydrogen releasing process, and the chemical reaction formula is as follows:
2MH＝M+H2
wherein M is a hydrogen storage alloy.
The hydrogen storage device 1 supplies hydrogen to the fuel cell device 2 through the gas pipeline 3, so that the fuel cell device 2 can continuously obtain the hydrogen serving as a reducing agent for power generation, an air inlet 210 is arranged on the fuel cell device 2, air in the outside atmosphere enters the fuel cell device 2 through the air inlet 210, oxygen serving as an oxidizing agent and reacting with the hydrogen is provided for the fuel cell device 2, the hydrogen and the oxygen in the fuel cell device 2 react under the action of catalysts on a cathode 214 and an anode 216 respectively to generate water and release electric energy, specifically, fuel (hydrogen) is supplied to the cathode 214 during operation, and an oxidizing agent (air, oxygen serving as an active component) is supplied to the anode 216; the hydrogen is dissociated into positive ions H + and electrons e-at the cathode, and when the hydrogen ions enter the electrolyte between the cathode 214 and the anode 216, the electrons move along the external circuit to the anode 216, and the electrical load is connected to the external circuit; at the positive electrode 216, oxygen in the air absorbs hydrogen ions in the electrolyte to reach electrons at the positive electrode 216 to form water; the control device 5 is electrically connected with the fuel cell device 2, the electric energy generated by the fuel cell device 2 can be supplied to the control device 5 to enable the control device 5 to normally operate, and the electric heating element 6 coated outside the hydrogen storage device 1 is also arranged, the electric heating element 6 is electrically connected with the control device 5, so that the electric energy generated by the fuel cell device 2 is supplied to a load through one part of the control device 5, and the other part of the electric heating element 6 is supplied to heat the electric heating element 6 to heat the hydrogen storage device 1 so as to provide heat for the hydrogen discharge reaction of the metal hydride in the hydrogen storage device 1; further, the control device 5 also adjusts the heating power of the electric heating element 6 according to the output power of the fuel cell device 2, specifically, when the output power of the fuel cell device 2 is larger, it indicates that the flow rate of hydrogen gas that the fuel cell device 2 needs to consume is larger, the discharge flow rate of the hydrogen storage device 1 is larger, and the heat absorbed by the hydrogen discharge reaction of the metal hydride is more, so that the control device 5 controls the electric heating element 6 to increase the heating power to provide more heat, and meet the requirement of the heat absorbed by the hydrogen discharge reaction of the metal hydride, it should be emphasized that adjusting the heating power of the electric heating element 6 can quickly change the temperature of the electric heating element 6, so that the electric heating element 6 can quickly adjust the heat provided for the hydrogen storage device 1 according to different hydrogen demand amounts of the fuel cell device 2, so as to accurately control the discharge flow rate of the hydrogen storage device 1, and avoid that the hydrogen flow amount required by the fuel cell device 2 is not matched with the hydrogen supply, causing the electric power supply of the fuel cell apparatus 2 to be insufficient; in detail, when the output power required by the fuel cell device 2 is larger, it indicates that the required amount of hydrogen is larger, and if the hydrogen storage device 1 cannot provide enough hydrogen, the electric energy generated by the fuel cell device 2 cannot meet the requirement; if it is less to need output when fuel cell device 2, then it is less to explain the demand volume of hydrogen, consequently, the utility model provides a technical scheme can effectively solve above-mentioned problem.
The control device 5 mainly functions to control the electromagnetic valve, the fan 4, the pressure measurement, the temperature measurement, the implementation of the control strategy and the energy conversion.
The hydrogen storage device 1 is specifically a metal hydride hydrogen storage tank, and the metal hydride in the metal hydride hydrogen storage tank comprises one or more of AB, AB2, A2B, AB5 and BCC type metal hydride.
In one specific embodiment, the body of the metal hydride hydrogen storage tank is an aluminum gas cylinder; the hydrogen storage capacity range of the metal hydride hydrogen storage tank is 60L-1000L, and the release flow of hydrogen is 0.1L/min-50L/min.
Alternatively, the electric heating member 6 is any one of a polyimide film heating sheet, a graphene heating sheet, a carbon crystal heating sheet, an aluminum foil heating sheet, or a silicone heating sheet.
As shown in fig. 3, in one embodiment, the electric heating member 6 is in the form of a sheet and is attached to the outer wall of the hydrogen storage device 1, and the hydrogen storage device 1 is covered by the sheet-shaped electric heating member 6, so as to increase the contact area between the electric heating member 6 and the hydrogen storage device 1, and to improve the heat absorption efficiency of the hydrogen storage device 1.
Optionally, the electric heating element 6 is an electric heating element, which is a flexible and bendable film-shaped electric heating element, and is formed by uniformly distributing poise-shaped and wire-shaped metal heating elements among glass fiber cloth coated with high-temperature-resistant silicon rubber and performing high-temperature die pressing. The body is thin, generally 0.1-1.5 mm thick and light, and can be more closely attached to the surface of a heated object during heating compared with the traditional metal electric heating product so as to improve the heat absorption efficiency of the hydrogen storage device 1.
As shown in fig. 4, in another embodiment, the electric heating member 6 is in the form of a band, and the electric heating member 6 is simply wound around the outer wall of the hydrogen storage device 1 to be suitable for hydrogen storage devices 1 of different shapes, so that each position of the hydrogen storage device 1 can be heated to improve the heat absorption efficiency of the hydrogen storage device 1.
Optionally, the electric heating element 6 is a heating belt which is suitable for heating and heat preservation of tanks, pipes, grooves and other containers of various industrial equipment, and mainly comprises an electric heating material, an insulating material and the like, wherein the electric heating material is a nickel-chromium alloy belt and has the characteristics of quick heating, high heat efficiency, long service life and the like, and the insulating material is a plurality of layers of alkali-free glass fibers and has good temperature resistance and reliable insulating property; the novel heating device is soft in structure, can be directly wound on the surface of a heated part to be heated in use, and is uniform in temperature, simple to install, convenient to use, safe and reliable.
As shown in fig. 1, in one embodiment of the invention, there is defined:
the fuel cell system for solid-state hydrogen storage and supply further comprises: the pressure reducing valve 32 is arranged on the gas transmission pipeline 3, and the hydrogen output by the hydrogen storage device 1 is supplied to the fuel cell device 2 after being reduced in pressure by the pressure reducing valve 32; a three-way valve 34 provided in the gas pipe 3 between the pressure reducing valve 32 and the fuel cell device 2; an intake solenoid valve 36 provided on the gas line 3 between the three-way valve 34 and the fuel cell device 2; the pressure sensor 38 is communicated with a first end of the three-way valve 34, wherein the pressure reducing valve 32 and the air inlet electromagnetic valve 36 are respectively communicated with a second end and a third end of the three-way valve 34, the pressure sensor 38 is arranged on the air transmission pipeline 3 through the three-way valve 34, and the control device 5 is respectively and electrically connected with the pressure sensor 38 and the air inlet electromagnetic valve 36; the control device 5 controls the air inlet electromagnetic valve 36 to open or close according to the acquired load power signal, when the air pressure value measured by the pressure sensor 38 is greater than 200kPa or less than 30kPa, the control device 5 transmits an alarm signal to the alarm device and controls the air inlet electromagnetic valve 36 to close so as to ensure the normal operation of the fuel cell device 2.
Specifically, the alarm device is a speaker, and plays sound information of alarm through the speaker to remind the user of air pressure value information, or the alarm device is a display screen, and the air pressure information is displayed through the display screen to remind the user.
As shown in fig. 1, in one embodiment of the invention, there is defined:
the fuel cell device 2 includes: the fuel cell stack comprises a fuel cell stack 22, a gas outlet pipeline 24 and a gas outlet electromagnetic valve 244, wherein specifically, the fuel cell stack 22 comprises a plurality of fuel cell stack pole pieces, one end of the gas outlet pipeline 24 is communicated with the fuel cell stack 22, the other end of the gas outlet pipeline is provided with a gas outlet 242, and the gas outlet electromagnetic valve 244 is arranged on the gas outlet pipeline 24; the gas outlet solenoid valve 244 is electrically connected with the control device 5, and the control device 5 controls the gas outlet solenoid valve 244 to be opened for a second time period after each first time period of closing according to the obtained load power signal, so that the hydrogen in the electric pile 22 can keep a certain pressure in the first time period of closing of the gas outlet solenoid valve 244, thereby increasing the hydrogen concentration in unit volume and increasing the utilization rate of the hydrogen; after the first time period is turned off, a part of the stack 22 is largely consumed, and by turning on the second time period, the remaining reaction gas and water generated by the reaction are discharged, and the utilization rate of hydrogen is improved.
Optionally, the stack 22 of the fuel cell device 2 is a wind-type cold proton exchange membrane fuel cell stack 22 with a power between 5w and 3kw, preferably between 100w and 1 kw.
Further, the number of routing inspection lines 28 is directly proportional to the number of stack pole pieces of the stack 22.
As shown in fig. 1, in one embodiment of the invention, there is defined:
the fuel cell system for solid-state hydrogen storage and supply further comprises: a temperature sensor 26 provided on the fuel cell device 2 to acquire the temperature of the stack 22, and the temperature sensor 26 is electrically connected to the control device 5; a plurality of inspection lines 28, wherein one end of each inspection line 28 is connected with one electrode pile pole piece, and the other end is electrically connected with the control device 5; when the temperature of the electric pile 22 measured by the temperature sensor 26 is higher than the set temperature, the control device 5 transmits a high-temperature alarm signal to the alarm device and controls to close the fuel cell device 2, so as to ensure that the electric pile 22 of the fuel cell device 2 operates within a reasonable temperature range, and avoid the damage of the electric pile 22 caused by the overhigh temperature of the electric pile 22 and even the hidden danger of igniting other components; when the voltage of the electrode plate of the electric pile measured by any inspection line 28 is lower than the set voltage (0.6V), the control device 5 transmits a low-voltage alarm signal to the alarm device and controls to close the fuel cell device 2, so that the normal operation of the electric pile 22 is ensured and stable power output is provided.
Specifically, the alarm device is a speaker, and plays sound information of alarm through the speaker to remind the user of the temperature of the fuel cell stack 22 and the voltage information of the stack pole pieces, or the alarm device is a display screen, and the temperature of the fuel cell stack 22 and the voltage information of the stack pole pieces are displayed through the display screen to remind the user.
As shown in fig. 2, in one embodiment of the invention, there is defined:
the fuel cell system for solid-state hydrogen storage and supply further comprises: the fan 4 is arranged at the air outlet 212 of the fuel cell device 2, the fan 4 is electrically connected with the control device 5, the control device 5 controls the rotating speed of the fan 4 according to the information of the load power and the temperature of the electric pile 22, and the rotating speed of the fan 4 is in direct proportion to the load power and the temperature of the electric pile 22, so that the temperature of the electric pile 22 is kept in a normal range, and the normal operation of the electric pile 22 is ensured.
As shown in fig. 1, in one embodiment of the invention, there is defined:
the fuel cell system for solid-state hydrogen storage and supply further comprises: a battery 7 electrically connected to the control device 5 and the fuel cell device 2, respectively; when the control device 5 acquires the starting signal, the storage battery 7 is controlled to output a starting voltage for controlling the starting voltage of the device 5 and outputting an auxiliary voltage; specifically, when the load power is larger than the output power of the fuel cell device 2, the control device controls the battery 7 to output the auxiliary voltage.
Optionally, the battery 7 is any one of a lithium ion battery pack, a nickel hydrogen power battery pack, or a nickel chromium power battery pack.
As shown in fig. 1, in one embodiment, the fuel cell apparatus 2 supplies power to the control apparatus 5 through a power transmission line.
The working principle of the solid hydrogen storage and supply air-cooled fuel cell system is as follows:
the metal hydride hydrogen storage tank (i.e., the hydrogen storage device 1) supplies hydrogen gas, the storage battery (i.e., the storage battery 7) supplies a starting voltage of the fuel cell system (i.e., the fuel cell device 2), and the cell control system (i.e., the control device 5) starts to operate. When the battery control system detects a load input signal, the air inlet electromagnetic valve 36, the heating sheet (i.e., the electric heating element 6) and the fan 4 are opened, the air outlet electromagnetic valve 244 is opened at a certain interval, corresponding actions are performed according to the requirement of actual load power, and the automatic control of the air circuit and the circuit is realized. The battery control system controls the rotation speed of the fan 4, and adjusts the rotation speed of the fan 4 in accordance with the temperature of the fuel cell stack 22 (i.e., the stack 22). The battery control system monitors the air pressure of the pipeline (namely the air transmission pipeline 3) after the pressure reduction of the pressure reducing valve 32 through the air pressure sensor 38, and when the air pressure is lower than a set value, a low air pressure alarm is carried out to close the fuel cell system; the battery control system monitors the temperature of the fuel cell stack 22 in real time through the temperature sensor 26, and when the temperature is higher than a set value, a high-temperature alarm is carried out to close the fuel cell system; the cell control system monitors the voltage of the stack pole pieces of the fuel cell stack 22 via a polling line 28, and when the voltage is lower than a set value, a low voltage alarm is issued to shut down the fuel cell system.
The utility model has the advantages as follows: the electric heating member is according to the heat that the different hydrogen demand of fuel cell device was adjusted fast and is provided for hydrogen storage device to the hydrogen output of accurate control hydrogen storage device avoids not matching because the hydrogen volume that the fuel cell device needs and the hydrogen supply volume of hydrogen storage device, causes the electric energy supply of fuel cell device not enough, perhaps the waste of hydrogen.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.
In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A solid state hydrogen storage and supply fuel cell system, comprising:
a hydrogen storage device storing a metal hydride;
the fuel cell device is communicated with the hydrogen storage device through a gas pipeline, so that the hydrogen storage device supplies hydrogen serving as a power generation reducing agent to the fuel cell device through the gas pipeline; the fuel cell device is provided with an air inlet, and outside air enters the fuel cell device through the air inlet to be used as an oxidant for power generation;
a control device electrically connected to the fuel cell device;
the electric heating element is electrically connected with the control device and covers the hydrogen storage device;
the hydrogen and the oxygen in the fuel cell device react under the action of catalysts on a cathode and an anode respectively to generate water and release electric energy, and the electric energy generated by the fuel cell device supplies power to the electric heating element through a control device.
2. The fuel cell system for solid state hydrogen storage and supply according to claim 1,
the electric heating piece is in a sheet shape and is attached to the outer wall of the hydrogen storage device.
3. The fuel cell system for solid state hydrogen storage and supply according to claim 1,
the electric heating element is in a strip shape and is wound on the outer wall of the hydrogen storage device.
4. The fuel cell system for solid state hydrogen storage and supply according to any one of claims 1 to 3,
the control device adjusts the heating power of the electric heating element according to the output power of the fuel cell device;
the fuel cell device supplies power to the control device through a power transmission line.
5. The solid state hydrogen storage and supply fuel cell system of claim 1, further comprising:
the pressure reducing valve is arranged on the gas transmission pipeline;
the three-way valve is arranged on the gas transmission pipeline between the pressure reducing valve and the fuel cell device;
the air inlet electromagnetic valve is arranged on the air conveying pipeline between the three-way valve and the fuel cell device;
a pressure sensor in communication with a first end of the three-way valve;
the pressure reducing valve and the air inlet electromagnetic valve are respectively communicated with the second end and the third end of the three-way valve, and the control device is respectively electrically connected with the pressure sensor and the air inlet electromagnetic valve; the control device controls the air inlet electromagnetic valve to be opened or closed according to the acquired load power signal, and when the air pressure value measured by the pressure sensor is greater than 200kPa or less than 30kPa, the control device transmits an alarm signal to the alarm device and controls the air inlet electromagnetic valve to be closed.
6. The fuel cell system for solid state hydrogen storage and supply according to claim 5, wherein the fuel cell device comprises:
a stack comprising a plurality of stack pole pieces;
one end of the gas outlet pipeline is communicated with the electric pile, and the other end of the gas outlet pipeline is provided with a gas outlet;
the air outlet electromagnetic valve is arranged on the air outlet pipeline;
the air outlet electromagnetic valve is electrically connected with the control device, and the control device controls the air outlet electromagnetic valve to be opened or closed according to the acquired load power signal.
7. The solid state hydrogen storage and supply fuel cell system of claim 6, further comprising:
the temperature sensor is arranged on the fuel cell device to acquire the temperature of the electric pile, and is electrically connected with the control device;
one end of each inspection line is connected with one of the pile electrode plates, and the other end of each inspection line is electrically connected with the control device;
when the temperature of the electric pile measured by the temperature sensor is higher than a set temperature, the control device emits a high-temperature alarm signal to the alarm device, controls to close the fuel cell device, and sequentially closes the air inlet electromagnetic valve and the air outlet electromagnetic valve, and closes the fan after the fan consumes the residual electric quantity of the electric pile;
when the voltage of the electric pile pole piece measured by any inspection line is lower than the set voltage, the control device transmits a low-voltage alarm signal to the alarm device, controls to close the fuel cell device, and closes the air inlet electromagnetic valve and the air outlet electromagnetic valve in sequence, and closes the fan after the fan consumes the residual electric quantity of the electric pile.
8. The solid state hydrogen storage and supply fuel cell system of claim 7, further comprising:
the fan is arranged at an air outlet of the fuel cell device and is electrically connected with the control device, the control device controls the rotating speed of the fan according to the information of the load power and the temperature of the electric pile, and the rotating speed of the fan is in direct proportion to the load power and the temperature of the electric pile.
9. The solid state hydrogen storage and supply fuel cell system of claim 1, further comprising:
the storage battery is electrically connected with the control device;
and the control device controls the storage battery to output starting voltage when acquiring the starting signal.
10. The fuel cell system for solid state hydrogen storage and supply according to claim 9,
when the load power is larger than the output power of the fuel cell device, the control device controls the storage battery to output the auxiliary voltage.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113147511A (en) * | 2021-04-12 | 2021-07-23 | 江苏集萃安泰创明先进能源材料研究院有限公司 | Electric-electric hybrid-motion hydrogen fuel cell two-wheeled electric vehicle taking solid hydrogen storage as hydrogen source |
| CN113428836A (en) * | 2021-08-03 | 2021-09-24 | 上海宇集动力系统有限公司 | Hydrogen production device capable of operating in low-temperature environment and control method thereof |
| CN113707909A (en) * | 2021-07-21 | 2021-11-26 | 广东电网有限责任公司广州供电局 | Fuel cell emergency power generation system based on solid-state hydrogen storage technology |
| CN114151722A (en) * | 2021-12-03 | 2022-03-08 | 江苏集萃安泰创明先进能源材料研究院有限公司 | Vehicle-mounted metal hydride composite hydrogen storage device |
| CN114506813A (en) * | 2022-03-01 | 2022-05-17 | 中能氢储(北京)能源工程研究院有限责任公司 | Graphene hydrogen storage device and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113147511A (en) * | 2021-04-12 | 2021-07-23 | 江苏集萃安泰创明先进能源材料研究院有限公司 | Electric-electric hybrid-motion hydrogen fuel cell two-wheeled electric vehicle taking solid hydrogen storage as hydrogen source |
| CN113707909A (en) * | 2021-07-21 | 2021-11-26 | 广东电网有限责任公司广州供电局 | Fuel cell emergency power generation system based on solid-state hydrogen storage technology |
| CN113428836A (en) * | 2021-08-03 | 2021-09-24 | 上海宇集动力系统有限公司 | Hydrogen production device capable of operating in low-temperature environment and control method thereof |
| CN114151722A (en) * | 2021-12-03 | 2022-03-08 | 江苏集萃安泰创明先进能源材料研究院有限公司 | Vehicle-mounted metal hydride composite hydrogen storage device |
| CN114506813A (en) * | 2022-03-01 | 2022-05-17 | 中能氢储(北京)能源工程研究院有限责任公司 | Graphene hydrogen storage device and control method thereof |
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