CN217444446U - Quick start type methanol reforming fuel cell system - Google Patents
Quick start type methanol reforming fuel cell system Download PDFInfo
- Publication number
- CN217444446U CN217444446U CN202221539323.4U CN202221539323U CN217444446U CN 217444446 U CN217444446 U CN 217444446U CN 202221539323 U CN202221539323 U CN 202221539323U CN 217444446 U CN217444446 U CN 217444446U
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- methanol
- fuel cell
- solid
- storage tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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 discloses a quick start type methanol reforming fuel cell system, which relates to the technical field of methanol reforming fuel cells, and comprises a methanol tank, a water tank and a methanol reforming fuel cell, and also comprises a solid hydrogen storage tank and a methanol catalytic heater; the methanol catalytic heater is sleeved at the periphery of the solid hydrogen storage tank, and a methanol heating catalyst is arranged in a methanol flow passage in the methanol catalytic heater; the outlet of the solid hydrogen storage tank is communicated with the inlet of the hydrogen fuel cell through a pipeline, the outlet of the hydrogen purifier is divided into two paths, one path is communicated with the anode inlet of the hydrogen fuel cell through a pipeline, and the other path is communicated with the inlet of the solid hydrogen storage tank through a pipeline. The utility model discloses with methyl alcohol catalytic heater suit in the periphery of solid-state hydrogen storage tank, release a large amount of heat conduction to solid-state hydrogen storage tank in, release hydrogen carries hydrogen fuel cell to generate electricity, at the start-up stage of reformer, hydrogen fuel cell just can generate electricity, has the fast advantage of start-up.
Description
Technical Field
The utility model relates to a methanol reforming fuel cell's technical field specifically is quick start type methanol reforming fuel cell system.
Background
Hydrogen belongs to clean energy, research and development on aspects of preparation, storage, transportation, application and the like of hydrogen are continued for many years, the hydrogen energy has high power generation efficiency, dependence on petroleum can be reduced, the emission is water vapor, however, technical difficulties exist in various links of storage, transportation, use and the like of hydrogen at present, and the hydrogen energy has the defects of high hydrogen storage and transportation cost, large potential safety hazard and high infrastructure investment.
At present, four main hydrogen storage modes are available, namely high-pressure gaseous hydrogen storage, low-temperature liquid hydrogen storage, organic liquid hydrogen storage and solid material hydrogen storage.
High-pressure gaseous hydrogen storage is the current main hydrogen storage mode, the technology is mature, but the price is higher, and the use of a high-pressure hydrogen storage tank has great risk and is difficult to be applied in large scale in the civil market.
The low-temperature liquid hydrogen storage is to cool the hydrogen to below-253 ℃ so as to liquefy the hydrogen and realize high-density storage. But the difficulty of temperature reduction and heat preservation is difficult to use in the civil market, and the method is only used in the aerospace field at present.
According to the difference of solid material hydrogen storage mechanism, the hydrogen storage materials can be mainly divided into two types of physical adsorption type hydrogen storage materials and metal hydride based hydrogen storage alloys, wherein metal hydride hydrogen storage is the most promising and faster-developing solid hydrogen storage mode at present.
Metal hydride hydrogen storage is the use of metal hydride hydrogen storage materials to store and release hydrogen. Pressurizing at a temperature, reacting the transition metal or alloy with hydrogen to adsorb the hydrogen in the form of a metal hydride, and heating the hydride to release the hydrogen, e.g. LaNi 5 H 6 、MgH 2 And NaAlH 4 。
The solid hydrogen storage at normal temperature and normal pressure is a technology of storing hydrogen by using metal hydride, and the hydrogen storage is safe because the hydrogen storage is heated only when releasing hydrogen at normal temperature and normal pressure in a container.
To solid-state hydrogen storage, chinese utility model patent with publication number CN 214619009U, the publication date is 2021 year 11 month 05, discloses a solid-state hydrogen storage and supply system, include the solid-state hydrogen storage device, cooling device, filter equipment, first check valve, temperature sensor and the first valve that are linked together in proper order through the main line, aerify the branch road and connect in parallel on filter equipment and first check valve, solid-state hydrogen storage device includes the hydrogen storage tank, is filled with magnesium alloy hydrogen storage material in the hydrogen storage tank to install the heating element that heats to its inside. Thus, the patent solves the problem of hydrogen supply and charging for solid-state hydrogen storage.
The methanol is a good carrier for storing and transporting hydrogen, can be prepared from coal and natural gas, has the hydrogen mass content of 12.5 wt%, and has good safety and convenience.
The methanol reforming fuel cell uses methanol aqueous solution as fuel, the methanol aqueous solution is converted into hydrogen-rich reformed gas through an evaporation chamber and a reformer in sequence, the reformed gas is filtered to remove carbon monoxide through a hydrogen purifier, and then the hydrogen is conveyed into the hydrogen fuel cell to react and output electric energy externally. Therefore, the methanol reforming fuel cell can utilize the methanol aqueous solution to produce hydrogen and generate electricity on line, and solves the problems of hydrogen energy in hydrogen storage, hydrogen transportation and safety. However, the reformer in the methanol reforming fuel cell has a disadvantage of slow start-up, the start-up of the reformer takes 10 to 20 minutes, and the hydrogen gas supplied to the hydrogen fuel cell in the start-up stage is very little, so that the hydrogen fuel cell cannot generate electricity in the start-up stage of the reformer.
In view of this, slow start-up of methanol reforming fuel cells is an urgent technical difficulty to be solved in the industry.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a quick start type methyl alcohol reforming fuel cell system, at reformer start-up stage, utilize solid-state hydrogen storage tank earlier to hydrogen fuel cell short-time supply hydrogen, satisfy the condition of hydrogen fuel cell quick start electricity generation, start at the reformer and accomplish the back, carry hydrogen to hydrogen fuel cell by the reformer again, solved the slow technical problem of start-up of the methyl alcohol reforming fuel cell who proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a fast start-up type methanol reforming fuel cell system comprises a methanol tank, a water tank and a methanol reforming fuel cell, wherein the methanol reforming fuel cell comprises a shell, an evaporation chamber, a reformer, a hydrogen purifier and a hydrogen fuel cell which are integrated in the shell, and also comprises a solid hydrogen storage tank and a methanol catalytic heater, the solid hydrogen storage tank is used for storing hydrogen at normal temperature and normal pressure in a solid state, and metal hydride is used for storing hydrogen;
a cylindrical cavity is formed inside the methanol catalytic heater, the methanol catalytic heater is sleeved on the periphery of the solid hydrogen storage tank, a plurality of communicated methanol flow channels are arranged in the methanol catalytic heater, and methanol heating catalysts are arranged in the methanol flow channels;
a methanol inlet is formed in the side wall of the methanol catalytic heater, and an outlet of the methanol tank is communicated with the methanol inlet through a pipeline;
the export of solid-state hydrogen storage tank with hydrogen fuel cell's positive pole entry passes through the pipeline intercommunication, the export of hydrogen purifier divide into two the tunnel, all the way with hydrogen fuel cell's positive pole entry passes through the pipeline intercommunication, another way with the entry of solid-state hydrogen storage tank passes through the pipeline intercommunication.
By adopting the technical scheme, the solid hydrogen storage tank stores hydrogen by utilizing the metal hydride, is safer than a hydrogen cylinder in storing hydrogen, and needs to be heated only when hydrogen is discharged at normal temperature and normal pressure in the solid hydrogen storage tank. In the starting stage of the reformer, the solid hydrogen storage tank is used for conveying hydrogen to the hydrogen fuel cell, so that the hydrogen fuel cell can generate electricity by using the hydrogen in the starting stage of the reformer, and the reformer has the advantage of quick starting. The periphery of the solid hydrogen storage tank is sleeved with a methanol catalytic heater, a methanol heating catalyst is attached to the inside of the solid hydrogen storage tank, the methanol and the methanol heating catalyst are contacted to generate an oxidation reduction reaction, heat is released and is conducted into the solid hydrogen storage tank, and the hydrogen can be conveyed to an anode inlet of the hydrogen fuel cell when the metal hydride meets high temperature to release hydrogen. When the solid hydrogen storage tank is charged with hydrogen, the methanol catalytic heater is closed, and the purified hydrogen in the hydrogen purifier is conveyed into the solid hydrogen storage tank through a pipeline to generate metal hydride.
Preferably, a first check valve, a first flow sensor and a first valve are arranged on a pipeline between the solid-state hydrogen storage tank and the hydrogen fuel cell, and the flow direction of the first check valve is from the solid-state hydrogen storage tank to the hydrogen fuel cell.
By adopting the technical scheme, the first one-way valve enables the hydrogen to flow to the hydrogen fuel cell only along the pipeline but cannot flow back to the solid hydrogen storage tank; the first flow sensor is used for observing the instantaneous flow and the accumulated flow of the hydrogen supplied to the hydrogen fuel cell by the solid-state hydrogen storage tank, so that the progress of hydrogen release is judged. The first valve is used for closing or opening a pipeline between the solid-state hydrogen storage tank and the hydrogen fuel cell.
Preferably, a second check valve, a second flow sensor and a second valve are arranged on a pipeline between the hydrogen purifier and the solid hydrogen storage tank, and the flow direction of the second check valve is from the hydrogen purifier to the solid hydrogen storage tank.
By adopting the technical scheme, the second one-way valve enables the hydrogen to flow to the solid-state hydrogen storage tank only along the pipeline but cannot flow back to the hydrogen purifier; the first flow sensor is used for observing the instantaneous flow and the accumulated flow of hydrogen supplied to the solid hydrogen storage tank by the hydrogen purifier, and the second valve is used for opening or closing a pipeline between the hydrogen purifier and the solid hydrogen storage tank.
Preferably, a third check valve and a third flow sensor are disposed on a pipeline between the hydrogen purifier and the hydrogen fuel cell, and a flow direction of the third check valve is from the hydrogen purifier to the hydrogen fuel cell.
By adopting the technical scheme, the third one-way valve enables the hydrogen to flow to the hydrogen fuel cell only along the pipeline but cannot flow back to the hydrogen purifier; the third flow sensor is used for observing the instantaneous flow and the accumulated flow of the hydrogen purifier for supplying hydrogen to the hydrogen fuel cell, and when the instantaneous flow meets the power generation requirement of the hydrogen fuel cell, the first valve can be closed, and the solid-state hydrogen storage tank is no longer used for supplying hydrogen to the hydrogen fuel cell.
Preferably, a first methanol pump and a fourth flow sensor are arranged on a pipeline between the methanol tank and the methanol inlet.
Through adopting above-mentioned technical scheme, in first methanol pump was with the methyl alcohol suction methyl alcohol catalytic heater in the methyl alcohol case, the fourth flow sensor was used for observing the instantaneous flow and the accumulative flow that the methyl alcohol case supplied methyl alcohol to methyl alcohol catalytic heater, and when the accumulative flow of methyl alcohol reached the setting value, control first methyl alcohol pump and close.
Preferably, a pressure sensor is arranged on a pipeline between the solid hydrogen storage tank and the first valve, and the pressure sensor is arranged on the pipeline through a root valve.
Through adopting above-mentioned technical scheme, the root valve is in normally open state, and hydrogen in the solid-state hydrogen storage jar breaks away from the hydrogen storage metal because of heating back, releases hydrogen, leads to the pressure rising in the hydrogen storage jar, and pressure sensor is used for detecting the pipeline between solid-state hydrogen storage jar and the first valve on the pressure value, when pressure reaches the threshold value of settlement, opens first valve, carries hydrogen fuel cell with hydrogen.
Compared with the prior art, the utility model provides a quick start-up type methyl alcohol reforming fuel cell system has following beneficial effect:
1. the utility model discloses a quick start-up type methyl alcohol reforming fuel cell system, adopt metal hydride to store hydrogen in the solid-state hydrogen storage tank, with methyl alcohol catalytic heater suit in the periphery of solid-state hydrogen storage tank, methyl alcohol and methyl alcohol generate heat the catalyst redox reaction in the methyl alcohol catalytic heater, release a large amount of heats, in heat conduction to the solid-state hydrogen storage tank, metal hydride meets high temperature release hydrogen, carry hydrogen fuel cell with hydrogen and generate electricity, just can carry hydrogen electricity to hydrogen fuel cell at reformer start-up stage, have the fast advantage of start-up.
2. The utility model discloses a reformer starts the completion back, is supplied hydrogen by the reformer to hydrogen fuel cell, and hydrogen purifier is arranged in detaching the carbon monoxide in the reformed gas, closes the first valve between solid-state hydrogen storage tank and the hydrogen fuel cell this moment, only utilizes the reformer to supply hydrogen to hydrogen fuel cell. Because the hydrogen in the solid hydrogen storage tank is partially conveyed to the hydrogen fuel cell, the branch pipeline of the hydrogen purifier is used for charging hydrogen into the solid hydrogen storage tank, and the charged solid hydrogen storage tank can supply hydrogen for the hydrogen fuel cell at the next starting stage of the methanol reforming fuel cell.
Drawings
Fig. 1 is a schematic structural diagram of a methanol reforming fuel cell of the present invention;
FIG. 2 is a schematic view of the assembled solid hydrogen storage tank and methanol catalytic heater of the present invention;
FIG. 3 is a schematic diagram of the methanol catalytic heater of the present invention;
fig. 4 is a flow diagram of a rapid start-up methanol reforming fuel cell system of the present invention;
fig. 5 is a flow chart of the solid hydrogen storage tank and the methanol sprayer of the present invention.
Reference numerals: 101. a methanol tank; 102. a water tank; 200. a methanol reforming fuel cell; 201. a housing; 202. an evaporation chamber; 203. a reformer; 204. a hydrogen purifier; 205. a hydrogen fuel cell; 206. a third check valve; 207. a third flow sensor; 208. a second methanol pump; 209. a water pump; 300. a solid-state hydrogen storage tank; 301. a first check valve; 302. a first flow sensor; 303. a first valve; 304. a second one-way valve; 305. a second flow sensor; 306. a second valve; 307. a pressure sensor; 308. a root valve; 400. a methanol catalytic heater; 401. a cylindrical cavity; 402. a methanol flow channel; 403. a methanol inlet; 404. a first methanol pump; 405. a fourth flow sensor; 500. a methanol sprayer; 501. a third methanol pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments.
It should be noted that, in the description of the present invention, the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention
Furthermore, it should be noted that in the description of the present invention, the terms "mounted," "disposed," and "connected" are to be construed broadly unless otherwise explicitly stated or limited. For example, the connection may be fixed, detachable or integrated; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 4, the present invention provides a fast start methanol reforming fuel cell system, which includes a methanol tank 101, a water tank 102 and a methanol reforming fuel cell 200, the methanol tank 101 stores methanol fuel, the water tank 102 stores water, the methanol reforming fuel cell 200 uses methanol aqueous solution as fuel, the methanol reforming fuel cell 200 includes a housing 201, an evaporation chamber 202, a reformer 203, a hydrogen purifier 204, a hydrogen fuel cell 205 and a controller (not shown in the figure), the evaporation chamber 202, the reformer 203, the hydrogen purifier 204, the hydrogen fuel cell 205 and the controller are all integrated in the housing 201, the housing 201 has methanol and water inlets, the evaporation chamber 202 is used to form methanol aqueous solution into methanol aqueous vapor, the outlets of the methanol tank 101 and the water tank 102 are all communicated with the inlet of the evaporation chamber 202 through a pipeline, the inlet of the reformer 203 is communicated with the outlet of the evaporation chamber 202 through a pipeline, the reformer 203 carries out reforming reaction on the methanol steam to generate reformed gas mainly containing hydrogen, an outlet of the reformer 203 is communicated with an inlet of the hydrogen purifier 204 through a pipeline, the hydrogen purifier 204 is used for removing carbon monoxide in the reformed gas, the service life of the hydrogen fuel cell 205 is shortened due to high concentration of the carbon monoxide in the reformed gas, the controller is used for controlling the operation of each module, and the methanol reforming fuel cell 200 can be a conventional methanol reforming fuel cell on the market.
Further, a first methanol pump 404 is arranged on a pipeline between the methanol tank 101 and the evaporation chamber 202, and is used for pumping the methanol in the methanol tank 101 into the evaporation chamber 202; a water pump 209 is provided in the conduit between the water tank 102 and the evaporation chamber 202 for pumping water from the water tank 102 into the evaporation chamber 202. Liquid flow valves (not shown) are provided on the pipelines between the methanol tank 101 and the evaporation chamber 202 and between the water tank 102 and the evaporation chamber 202 for controlling the ratio of methanol and water to be fed into the evaporation chamber 202.
In addition, in order to solve the problem of quick start of the methanol reforming fuel cell 200 system, the quick start methanol reforming fuel cell 200 system further includes a solid hydrogen storage tank 300 and a methanol catalytic heater 400, the solid hydrogen storage tank 300 stores hydrogen using metal hydride, which is safer than hydrogen stored in a hydrogen cylinder, the solid hydrogen storage tank 300 is at normal temperature and normal pressure, and needs to be heated only when hydrogen is discharged, and the methanol catalytic heater is used to heat the solid hydrogen storage tank 300. When hydrogen cannot be supplied to the hydrogen fuel cell 205 at the start-up stage of the reformer 203, the solid-state hydrogen storage tank 300 supplies hydrogen to the anode inlet of the hydrogen fuel cell 205 first, so that the hydrogen fuel cell 205 can be started up quickly to generate electricity, and the heat of the tail gas of the hydrogen fuel cell 205 is transferred to the reformer 203 through the heat exchanger, thereby accelerating the start-up speed of the reformer 203. After the start-up of the reformer 203 is completed, the line between the solid-state hydrogen storage tank 300 and the hydrogen fuel cell 205 may be closed, and only the reformer 203 is used to supply hydrogen to the hydrogen fuel cell 205, thereby achieving a quick start-up of the system of the methanol reforming fuel cell 200.
In addition, the shapes of the methanol catalytic heater 400 and the solid hydrogen storage tank 300 are both substantially cylindrical, a cylindrical cavity 401 capable of being sleeved outside the solid hydrogen storage tank 300 is formed inside the methanol catalytic heater 400, so that the cylindrical cavity 401 of the methanol catalytic heater 400 can be sleeved on the periphery of the solid hydrogen storage tank 300, and the methanol catalytic heater 400 and the solid hydrogen storage tank 300 are locked by using a hoop. There is a surface contact between the methanol catalytic heater 400 and the solid-state hydrogen storage tank 300, which facilitates the conduction of heat generated by the methanol catalytic heater 400 to the solid-state hydrogen storage tank 300.
Further, a plurality of methanol flow channels 402 which are communicated with each other are arranged in the methanol catalytic heater 400, methanol heating catalysts are arranged in the plurality of methanol flow channels 402, a methanol inlet 403 and an exhaust hole are arranged on the side wall of the methanol catalytic heater 400, an outlet of the methanol tank 101 is communicated with the methanol inlet 403 through a pipeline, a second methanol pump 208 is arranged on the pipeline between the methanol tank 101 and the methanol inlet 403, the methanol in the methanol tank 101 is pumped into the methanol catalytic heater 400 by the second methanol pump 208, the methanol flows in the plurality of methanol flow channels 402 and is contacted with the methanol heating catalysts to generate oxidation-reduction reaction, a large amount of heat is generated, and the methanol catalytic heater 400 conducts the heat into the solid hydrogen storage tank 300 to promote the metal hydrogen storage materials in the solid hydrogen storage tank 300 to release hydrogen.
After the solid hydrogen storage tank 300 supplies hydrogen to the hydrogen fuel cell 205, the content of hydrogen in the solid hydrogen storage tank 300 is low, and in order to supply hydrogen to the hydrogen fuel cell 205 at the next start-up of the methanol reforming fuel cell 200, it is necessary to recharge hydrogen into the solid hydrogen storage tank 300. The outlet of the solid hydrogen storage tank 300 is communicated with the anode inlet of the hydrogen fuel cell 205 through a pipeline and is used for delivering hydrogen to the hydrogen fuel cell 205, the outlet of the hydrogen purifier 204 is divided into two paths, one path is communicated with the anode inlet of the hydrogen fuel cell 205 through a pipeline and is used for delivering hydrogen to the hydrogen fuel cell 205 through the pipeline after the reformer 203 is started, and the other path is communicated with the inlet of the solid hydrogen storage tank 300 through a pipeline and is used for charging hydrogen into the solid hydrogen storage tank 300.
The above embodiments are merely preferred embodiments of the present invention, which are necessary technical features, and therefore do not limit the embodiments and the protection scope of the present invention.
The utility model discloses still have following embodiment on above-mentioned basis:
further, as a preferred embodiment, a first check valve 301, a first flow sensor 302 and a first valve 303 are disposed on a pipeline between the solid hydrogen storage tank 300 and the hydrogen fuel cell 205, and the first check valve 301 flows from the solid hydrogen storage tank 300 to the hydrogen fuel cell 205. The first check valve 301 allows the hydrogen gas to flow only along the pipeline to the hydrogen fuel cell 205, but not to flow back to the solid-state hydrogen storage tank 300; the first flow sensor 302 is used to observe the instantaneous flow and the integrated flow of hydrogen supplied from the solid-state hydrogen storage tank 300 to the hydrogen fuel cell 205, thereby determining the progress of hydrogen discharge. The first valve 303 is used to close or open a line between the solid hydrogen storage tank 300 and the hydrogen fuel cell 205.
Still further, as a preferred embodiment, a second check valve 304, a second flow sensor 305 and a second valve 306 are disposed on the pipeline between the hydrogen purifier 204 and the solid-state hydrogen storage tank 300, and the flow direction of the second check valve 304 is from the hydrogen purifier 204 to the solid-state hydrogen storage tank 300. The second check valve 304 allows the hydrogen gas to flow only along the pipeline to the solid hydrogen tank 300, but not to flow back to the hydrogen purifier 204; the first flow sensor 302 is used for observing the instantaneous flow and the accumulated flow of hydrogen supplied by the hydrogen purifier 204 to the solid hydrogen storage tank 300, and the second valve 306 is used for opening or closing a pipeline between the hydrogen purifier 204 and the solid hydrogen storage tank 300.
Further, as a preferred embodiment, a third check valve 206 and a third flow sensor 207 are disposed on a pipeline between the hydrogen purifier 204 and the hydrogen fuel cell 205, and the flow direction of the third check valve 206 is from the hydrogen purifier 204 to the hydrogen fuel cell 205. The third check valve 206 allows the hydrogen to flow only along the pipeline to the hydrogen fuel cell 205, but not to flow back to the hydrogen purifier 204; the third flow sensor 207 is used to observe the instantaneous flow and the accumulated flow of hydrogen supplied to the hydrogen fuel cell 205 by the hydrogen purifier 204, and when the instantaneous flow meets the demand of power generation of the hydrogen fuel cell 205, the first valve 303 can be closed, and the solid-state hydrogen storage tank 300 is no longer used to supply hydrogen to the hydrogen fuel cell 205.
Also, as a preferred embodiment, a first methanol pump 404 and a fourth flow sensor 405 are provided on the piping between the methanol tank 101 and the methanol inlet 403. The first methanol pump 404 pumps the methanol in the methanol tank 101 into the methanol catalytic heater 400, and the fourth flow sensor 405 is used to observe the instantaneous flow and the cumulative flow of the methanol supplied from the methanol tank 101 to the methanol catalytic heater 400, and when the cumulative flow of the methanol reaches a set value, the first methanol pump 404 is controlled to be turned off.
Further, as a preferred embodiment, a pressure sensor 307 is provided on the pipeline between the solid hydrogen storage tank 300 and the first valve 303, and the pressure sensor 307 is provided on the pipeline through a foot valve 308. The root valve 308 is in a normally open state, hydrogen in the solid hydrogen storage tank 300 is separated from hydrogen storage metal after being heated, and releases hydrogen, so that the pressure in the hydrogen storage tank is increased, the pressure sensor 307 is used for detecting the pressure value on a pipeline between the solid hydrogen storage tank 300 and the first valve 303, and when the pressure reaches a set threshold value, the first valve 303 is opened, and the hydrogen is conveyed to the hydrogen fuel cell 205.
In addition, as a preferred embodiment, the solid hydrogen storage tank 300 is located outside the housing 201 of the methanol reforming fuel cell 200, and therefore, a through hole is formed in the housing 201, and a pipeline between the solid hydrogen storage tank 300 and the hydrogen fuel cell 205, and a pipeline between the hydrogen purifier 204 and the solid hydrogen storage tank 300 are passed through the through hole in the housing 201.
Further, as a preferred embodiment, as shown in fig. 5, a methanol sprayer 500 is disposed above the solid hydrogen storage tank 300, the methanol sprayer 500 is mounted on a bracket (not shown), the methanol sprayer 500 is connected to the methanol tank 101 through a pipeline, and a third methanol pump 501 is disposed on the pipeline between the methanol sprayer 500 and the methanol tank 101.
The working principle of the present application is explained next:
the hydrogen supply principle of the system is as follows: when hydrogen is supplied, the first methanol pump 404, the second methanol pump 208 and the water pump 209 are started, the first valve 303 and the second valve 306 are closed, the second methanol pump 208 pumps the methanol in the methanol tank 101 into the methanol catalytic heater 400, the methanol and the methanol heating catalyst undergo an oxidation-reduction reaction to generate high heat, the heat is conducted to the solid hydrogen storage tank 300 through the methanol catalytic heater 400, so that the metal hydrogen storage material in the solid hydrogen storage tank 300 releases hydrogen, the pressure sensor 307 detects the pressure value in the pipeline, when the pressure value reaches a set pressure value, the first valve 303 is started, the hydrogen in the solid hydrogen storage tank 300 is conveyed to the hydrogen fuel cell 205, and the hydrogen fuel cell 205 is quickly started to generate electricity. When the third flow sensor 207 detects that the instantaneous flow meets the demand of the hydrogen fuel cell 205 for power generation, which means that the hydrogen output from the reformer 203 can meet the demand of the hydrogen fuel cell 205, the first valve 303 and the second methanol pump 208 can be closed, the solid-state hydrogen storage tank 300 is no longer used for supplying hydrogen to the hydrogen fuel cell 205, and the entire start-up of the methanol reforming fuel cell 200 is completed.
The charging principle of the solid-state hydrogen storage tank 300 is as follows: when charging hydrogen, the first valve 303 is closed, the second valve 306 is opened, the hydrogen flowing in the hydrogen purifier 204 is delivered into the solid hydrogen storage tank 300 at a certain pressure, the hydrogen reacts with the metal hydrogen storage material in the solid hydrogen storage tank 300 to generate metal hydride, the hydrogen is stored, and when the second flow sensor 305 detects that the accumulated flow reaches a set value, the second valve 306 is closed, and the charging hydrogen into the solid hydrogen storage tank 300 is completed.
It is noted that, herein, 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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A quick start type methanol reforming fuel cell system comprising a methanol tank (101), a water tank (102), and a methanol reforming fuel cell (200), the methanol reforming fuel cell (200) comprising a casing (201) and an evaporation chamber (202), a reformer (203), a hydrogen purifier (204), and a hydrogen fuel cell (205) integrated in the casing (201), characterized in that: also comprises a solid hydrogen storage tank (300) and a methanol catalytic heater (400);
a cylindrical cavity (401) is formed inside the methanol catalytic heater (400), the methanol catalytic heater (400) is sleeved on the periphery of the solid hydrogen storage tank (300), a plurality of communicated methanol flow channels (402) are arranged in the methanol catalytic heater (400), and methanol heating catalysts are arranged in the methanol flow channels (402);
a methanol inlet (403) is formed in the side wall of the methanol catalytic heater (400), and an outlet of the methanol tank (101) is communicated with the methanol inlet (403) through a pipeline;
the export of solid-state hydrogen storage tank (300) with the positive pole entry of hydrogen fuel cell (205) passes through the pipeline intercommunication, the export of hydrogen purifier (204) is divided into two the tunnel, all the way with the positive pole entry of hydrogen fuel cell (205) passes through the pipeline intercommunication, another way with the entry of solid-state hydrogen storage tank (300) passes through the pipeline intercommunication.
2. A rapid start-up methanol reforming fuel cell system according to claim 1, wherein a first check valve (301), a first flow sensor (302), and a first valve (303) are provided on a pipe between the solid state hydrogen tank (300) and the hydrogen fuel cell (205), and a flow direction of the first check valve (301) is from the solid state hydrogen tank (300) to the hydrogen fuel cell (205).
3. The rapid start-up type methanol reforming fuel cell system according to claim 2, wherein a second check valve (304), a second flow sensor (305), and a second valve (306) are provided in a pipe between the hydrogen purifier (204) and the solid state hydrogen storage tank (300), and a flow direction of the second check valve (304) is from the hydrogen purifier (204) to the solid state hydrogen storage tank (300).
4. A rapid start-up methanol reforming fuel cell system according to claim 3, characterized in that a third check valve (206) and a third flow sensor (207) are provided on a pipe between the hydrogen purifier (204) and the hydrogen fuel cell (205), and the flow direction of the third check valve (206) is from the hydrogen purifier (204) to the hydrogen fuel cell (205).
5. A rapid start-up methanol reforming fuel cell system according to claim 1, wherein a first methanol pump (404) and a fourth flow sensor (405) are provided on a pipe between the methanol tank (101) and the methanol inlet (403).
6. A rapid start-up methanol reforming fuel cell system according to claim 2, wherein a pressure sensor (307) is provided on the pipeline between the solid-state hydrogen storage tank (300) and the first valve (303), the pressure sensor (307) being provided on the pipeline through a root valve (308).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221539323.4U CN217444446U (en) | 2022-06-20 | 2022-06-20 | Quick start type methanol reforming fuel cell system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221539323.4U CN217444446U (en) | 2022-06-20 | 2022-06-20 | Quick start type methanol reforming fuel cell system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217444446U true CN217444446U (en) | 2022-09-16 |
Family
ID=83222993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221539323.4U Active CN217444446U (en) | 2022-06-20 | 2022-06-20 | Quick start type methanol reforming fuel cell system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217444446U (en) |
-
2022
- 2022-06-20 CN CN202221539323.4U patent/CN217444446U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Lototskyy et al. | The use of metal hydrides in fuel cell applications | |
| CN105084311B (en) | The methanol-water hydrogen production system employing reforming technology and its application and hydrogen production process of a kind of zero carbon emission | |
| US7951349B2 (en) | Method and system for storing and generating hydrogen | |
| US6093501A (en) | Fuel cell using an aqueous hydrogen-generating process | |
| CN106276790B (en) | Normal pressure hydrogen making reaction device and hydrogen fuel cell power supply system | |
| CN104555921B (en) | A kind of fuel cell car | |
| CN109982963B (en) | Hydrogen generation system and method with buffer tank | |
| CN111509269B (en) | But continuous hydrogen power generation device | |
| US20080241614A1 (en) | Hydrogen mobile power plant that extracts hydrogen fuel from water | |
| CN105152133A (en) | Online high-purity hydrogen preparation system for fuel cell and control method of online high-purity hydrogen preparation system | |
| WO2004035464A2 (en) | Hydrogen fuel cell systems | |
| WO2006017449A2 (en) | Pressurized hydrogen delivery system for electrochemical cells | |
| WO2007120872A2 (en) | Fuel cell purge cycle apparatus and method | |
| CN105347300B (en) | A kind of quick cold start-up hydrogen from methyl alcohol machine system | |
| CN106347161B (en) | A kind of the continuation of the journey control method and fuel cell car of fuel cell car | |
| US8864855B2 (en) | Portable hydrogen generator | |
| US20220093945A1 (en) | Dehydrogenation method for hydrogen storage materials | |
| CN217444446U (en) | Quick start type methanol reforming fuel cell system | |
| CN111509279B (en) | In-situ hydrogen production fuel cell system | |
| CA2453654C (en) | Device and method for heating hydrogen storage canister | |
| JPS58121566A (en) | Hydrogen fuel cell | |
| WO2023115622A1 (en) | Catalytic combustion hydrogen storage and release device and method | |
| KR102198519B1 (en) | Liquid compound based power generation system and method | |
| CN212085143U (en) | But continuous hydrogen power generation device | |
| EP1515079A2 (en) | Device and method for heating hydrogen storage canister |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |