CN112768728A - Hydrogen fuel cell capable of recycling exhaust gas - Google Patents
Hydrogen fuel cell capable of recycling exhaust gas Download PDFInfo
- Publication number
- CN112768728A CN112768728A CN202110102030.3A CN202110102030A CN112768728A CN 112768728 A CN112768728 A CN 112768728A CN 202110102030 A CN202110102030 A CN 202110102030A CN 112768728 A CN112768728 A CN 112768728A
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- fuel cell
- hydrogen fuel
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- power supply
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04097—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling of the reactants
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04126—Humidifying
- H01M8/04141—Humidifying by water containing exhaust gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/16—Hydrogen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
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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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Electrochemistry (AREA)
- Manufacturing & Machinery (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Fuel Cell (AREA)
Abstract
The hydrogen fuel cell for recycling the waste gas comprises a hydrogen fuel cell body, a one-way air valve, an axial flow fan, air cooling equipment, a waste water tank, a stabilized voltage power supply, a water level switch and a buzzer; the humidifying device shell of the hydrogen fuel cell body is of an inner-layer structure and an outer-layer structure; the upper end and the lower end of the shell are respectively provided with an air inlet pipe and an exhaust pipe, and the air inlet pipe is connected with an exhaust pipe; the evaporator of the air cooling equipment is arranged in the shell, the left side end and the right side end of the shell are respectively provided with a left connecting pipe and a right connecting pipe, the left connecting pipe is connected with an exhaust pipe, the right connecting pipe is connected with an air inlet pipe of an axial flow fan, the exhaust pipe of the axial flow fan is connected with the air inlet end of a one-way air valve, and the exhaust end of the one-way air valve is connected with a hydrogen inlet pipe of the hydrogen fuel cell body in; the water level switch is arranged at the upper end in the wastewater tank; the stabilized voltage power supply and the buzzer are arranged in the element box and connected with the water level switch. The invention can effectively keep the temperature in the shell of the humidifying device and can also effectively recycle the hydrogen in the waste gas.
Description
Technical Field
The invention relates to the field of fuel cells, in particular to a hydrogen fuel cell capable of recycling waste gas.
Background
A Fuel Cell (Fuel Cell) is a power generation device that directly converts chemical energy existing in Fuel and oxidant into electric energy, and has the advantages of high electric energy conversion efficiency, environmental protection, and the like, so that the Fuel Cell has wide application in national defense, traffic, and industry. The fuel cell is mainly composed of a plurality of single cells which are connected in series to form a fuel cell stack, and the single cell connected in series is more than one when the voltage is higher. The fuel cell using hydrogen as fuel has a higher power density than other fuel cells, and the discharged by-products are water or water vapor, which does not cause any environmental pollution, and thus is widely used in fuel cells. In practical application, the input hydrogen enters the hydrogen channel of each single cell, so that complete reaction cannot be guaranteed, namely, a certain amount of unreacted hydrogen is mixed with water vapor in the discharged waste gas by-products generated by the reaction, and thus, the hydrogen is not effectively utilized, and unnecessary energy waste is caused.
The proton exchange membrane hydrogen fuel cell is the most widely used hydrogen fuel cell, and in order to ensure that the performance indexes of the proton exchange membrane hydrogen fuel cell, such as the conductivity, and the like, meet the requirements, the reacted hydrogen gas needs to be pre-humidified by adopting a spray humidifying device. The existing humidifying device directly sprays water to hydrogen, icing or atomization are not good due to over-low ambient temperature, electric heating equipment and the like are generally arranged on the outer side of the humidifying device in the prior art, atomized water entering the humidifying device is heated, and normal work of the humidifying device is guaranteed. Hydrogen fuel cells are relatively energy inefficient due to the use of electrical energy in heating. In view of the above, it is particularly necessary to provide a hydrogen fuel cell which can heat a humidifier by effectively utilizing the heat of the exhaust gas without using electric energy, and can recycle the hydrogen in the exhaust gas.
Disclosure of Invention
In order to overcome the defects that the existing hydrogen fuel cell group cannot effectively utilize the exhausted hydrogen in the waste gas due to the limited structure, and a humidifying device needs electric heating and the like, the invention provides the hydrogen fuel cell which utilizes the heat of the waste gas exhausted by the hydrogen fuel cell body to heat the humidifying device, does not need electric energy to heat the humidifying device and can effectively recycle the hydrogen in the waste gas under the combined action of related mechanisms, thereby realizing the purpose of energy conservation and recycling the waste gas.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the hydrogen fuel cell for recycling the waste gas comprises a hydrogen fuel cell body, a one-way air valve, an axial flow fan, air cooling equipment, a waste water tank, a stabilized voltage power supply, a water level switch and a buzzer; the humidifying device shell of the hydrogen fuel cell body is of an inner-layer structure and an outer-layer structure; the upper end and the lower end of the shell are respectively provided with an air inlet pipe and an air outlet pipe, and the air inlet pipe is connected with an exhaust pipe of the hydrogen fuel cell; the evaporator of the air cooling equipment is arranged in the shell, a left connecting pipe and a right connecting pipe are respectively arranged at the left side end and the right side end of the shell, the left connecting pipe is connected with the exhaust pipe of the humidifying device shell, the right connecting pipe is connected with the air inlet pipe of the axial flow fan, the exhaust pipe of the axial flow fan is connected with the air inlet end of the one-way air valve, and the exhaust end of the one-way air valve is connected with the hydrogen inlet pipe of the hydrogen fuel cell body in; the water level switch is arranged at the upper end in the wastewater tank; the stabilized voltage supply and the buzzer are arranged in the element box; the power output end of the voltage-stabilized power supply is electrically connected with the input end of the water level switch power supply respectively, and the output end of the water level switch power supply is electrically connected with the input end of the buzzer power supply respectively.
Furthermore, a drain pipe is arranged on the lower portion of the shell provided with the evaporator, and the lower end of the drain pipe is located in the waste water tank.
Further, the stabilized voltage supply is an alternating current to direct current switching power supply module.
Further, the water level switch is a floating ball type normally closed contact liquid level switch.
The invention has the beneficial effects that: the other using methods and processes of the hydrogen fuel cell body are completely consistent with those of the prior hydrogen fuel cell. The hydrogen fuel cell body reacts to generate hot steam containing hydrogen and the hot steam enters the space between the inner layer and the outer layer of the shell of the humidifying device, so that the temperature in the shell of the humidifying device can be effectively kept, water mist freezing and poor atomization are prevented, and the aim of saving energy can be effectively fulfilled without using electric energy to heat the humidifying device. After the heat of the humidifying device is released, steam and hydrogen enter the evaporator, the steam is cooled into water and discharged into the wastewater tank, and the hydrogen in the waste gas is pumped out by the axial flow fan and enters the hydrogen inlet pipeline of the hydrogen fuel cell body, so that the hydrogen in the waste gas is effectively recycled, and the aim of saving energy is correspondingly achieved. Based on the above, the invention has good application prospect.
Drawings
The invention is further illustrated below with reference to the figures and examples.
FIG. 1 is a schematic plan view of the present invention.
Fig. 2 is a circuit diagram of the present invention.
Detailed Description
As shown in fig. 1, the hydrogen fuel cell for recycling exhaust gas includes a hydrogen fuel cell body (not shown), a one-way air valve 1, an axial flow fan 2, an air cooling device having necessary components such as an evaporator 3, a condenser 4, and a compressor, a waste water tank 6, a regulated power supply 7, a water level switch 8, and a buzzer 9; the shell 101 of the humidifying device 10 of the hydrogen fuel cell body is of an inner-layer structure and an outer-layer structure, the spray head 102 of the humidifying device is positioned at the upper end in the inner-layer shell, and a sealing structure is arranged between the outer upper side of the spray head and the outer layer of the shell 101; an air inlet pipe 103 and an air outlet pipe 104 are respectively welded at the left part and the lower part of the right end of the upper end of the shell, and the air inlet pipe 103 is connected with an exhaust pipe of the hydrogen fuel cell body through a pipeline and a pipeline joint; the air cooling device is arranged at the side end of the hydrogen fuel cell body, the evaporator 3 of the air cooling device is arranged in a rectangular sealed shell 31, the middle parts of the left side end and the right side end of the shell 31 are respectively welded with a left connecting pipe 311 and a right connecting pipe 312 which are communicated with the inside of the shell, the left connecting pipe 311 is connected with the exhaust pipe 104 of the humidifying device shell through a pipeline and a pipeline joint, the right connecting pipe 312 is connected with the air inlet pipe of the axial flow fan 2 through a pipeline and a pipeline joint, the exhaust pipe of the axial flow fan 2 is connected with the air inlet end of the one-way air valve 1 through threads, and the exhaust end 1 of the one-way air valve is connected with; the water level switch 6 is arranged at the upper part in the wastewater tank 6 through a screw and a nut; the stabilized voltage power supply 7 and the buzzer 9 are mounted on the circuit board in the element box 5. The lower end of the shell 31 for installing the evaporator 3 is a conical structure, the middle part of the outer lower end of the shell is vertically welded with a drain pipe 32, and the lower end of the drain pipe 32 is positioned at the inner upper end of the waste water tank 6.
As shown in figures 1 and 2, the regulated power supply A is a finished product of a 220V/12V/50W AC-to-DC 12V switching power supply module. The water level switch T is a finished product of a floating ball type normally open contact liquid level switch. The power input ends 1 and 2 of the stabilized voltage power supply A and the two poles of the alternating current 220V power supply are respectively connected through leads, the power output ends 3 and 4 of the stabilized voltage power supply A and the power input end of the water level switch T are respectively connected through leads, and the power output end of the water level switch T and the power input end of the buzzer B are respectively connected through leads.
As shown in fig. 1 and 2, the other using methods and processes of the hydrogen fuel cell body of the present invention are completely the same as those of the conventional hydrogen fuel cell, air enters the air channel of the hydrogen fuel cell body through the air inlet channel pipe of the hydrogen fuel cell body, meanwhile, hydrogen in the hydrogen tank enters the humidifying device 10 of the hydrogen fuel cell body, the humidifying device 10 sprays water mist for the hydrogen to mix with the water mist, and then the mixed water mist enters the hydrogen inlet channel pipe of the hydrogen fuel cell body, and under the combined action of other auxiliary devices of the hydrogen fuel cell body, chemical energy in the hydrogen fuel and the oxidant is directly converted into electric energy to supply power to electric equipment. The water vapor, water and residual hydrogen generated after the reaction of the hydrogen fuel cell stack body are discharged through an exhaust pipe of the hydrogen fuel cell stack body.
In the present invention, as shown in fig. 1 and 2, the power supply of the axial flow fan 2 and the air cooler is turned on simultaneously after the hydrogen fuel cell main body is turned on. When the humidifier works, waste gas exhausted by the hydrogen fuel cell body firstly enters the space between the inner layer and the outer layer of the humidifying device shell 101 through the air inlet pipe 103, so that the heat (about 90 degrees) of the waste gas can heat the interior of the humidifying device 10, the temperature in the humidifying device shell can be effectively kept, water mist sprayed into the humidifying device is prevented from freezing and poor atomization, and the energy-saving purpose can be effectively achieved because the humidifying device is not heated by electric energy. The waste gas that the hydrogen fuel cell body discharged gets into humidification device 10 and releases the heat and gets into in evaporimeter 3 shell 31 through blast pipe 104 after, the cold air that the evaporimeter produced under combined action such as condenser and compressor will get into the vapor cooling water in the shell, discharge into waste water tank 6 through drain pipe 32, hydrogen in the waste gas because axial fan 2's negative pressure effect, can export through axial fan's blast pipe, get into the hydrogen pipeline that advances of hydrogen fuel cell body through one-way pneumatic valve again, effectively like this hydrogen in the waste gas has carried out recycle, corresponding energy-conserving purpose that has also reached. In the invention, after a 220V alternating current power supply enters the power input ends 1 and 2 of the stabilized voltage supply A, the pins 3 and 4 of the stabilized voltage supply A can output a stable 12V direct current power supply to enter the two power input ends of the water level switch T, when the waste water amount in the water tank 6 is small, the buoyancy force applied to the water level switch T is small, the internal contact of the water level switch T is in an open circuit state, and then the buzzer B cannot be electrified. When the amount of waste water in the water tank 6 is large, the water level switch T is subjected to large buoyancy, and the internal contacts of the water level switch T are in a closed state, and because the two power input ends of the signal sounder B and the two power output contacts of the water level switch are respectively connected, the signal sounder B can be powered on to send out a loud prompt sound to prompt workers that the amount of water in the waste water tank 6 is large and needs to be treated. Through the combined action of all the circuits and the mechanisms, the invention not only can effectively heat and preserve the temperature of the humidifying device, but also can achieve the aim of saving energy. In the circuit, the audible alarm B is an active continuous audible alarm finished product with the model SF 12.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, the embodiments do not include only one independent technical solution, and such description is only for clarity, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims (4)
1. The hydrogen fuel cell for recycling the waste gas comprises a hydrogen fuel cell body, a one-way air valve, an axial flow fan, air cooling equipment, a waste water tank, a stabilized voltage power supply, a water level switch and a buzzer; the humidifying device shell of the hydrogen fuel cell body is of an inner-layer structure and an outer-layer structure; the upper end and the lower end of the shell are respectively provided with an air inlet pipe and an air outlet pipe, and the air inlet pipe is connected with an exhaust pipe of the hydrogen fuel cell; the evaporator of the air cooling equipment is arranged in the shell, a left connecting pipe and a right connecting pipe are respectively arranged at the left side end and the right side end of the shell, the left connecting pipe is connected with the exhaust pipe of the humidifying device shell, the right connecting pipe is connected with the air inlet pipe of the axial flow fan, the exhaust pipe of the axial flow fan is connected with the air inlet end of the one-way air valve, and the exhaust end of the one-way air valve is connected with the hydrogen inlet pipe of the hydrogen fuel cell body in; the water level switch is arranged at the upper end in the wastewater tank; the stabilized voltage supply and the buzzer are arranged in the element box; the power output end of the voltage-stabilized power supply is electrically connected with the input end of the water level switch power supply respectively, and the output end of the water level switch power supply is electrically connected with the input end of the buzzer power supply respectively.
2. The hydrogen fuel cell for recycling exhaust gas according to claim 1, wherein a drain pipe is installed at a lower portion of the housing where the evaporator is installed, and a lower end of the drain pipe is located in the waste water tank.
3. The hydrogen fuel cell for recycling exhaust gas according to claim 1, wherein the regulated power supply is an ac-to-dc switching power supply module.
4. The exhaust gas-recycling hydrogen fuel cell according to claim 1, wherein the water level switch is a float type normally closed contact level switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110102030.3A CN112768728A (en) | 2021-01-26 | 2021-01-26 | Hydrogen fuel cell capable of recycling exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110102030.3A CN112768728A (en) | 2021-01-26 | 2021-01-26 | Hydrogen fuel cell capable of recycling exhaust gas |
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| Publication Number | Publication Date |
|---|---|
| CN112768728A true CN112768728A (en) | 2021-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110102030.3A Pending CN112768728A (en) | 2021-01-26 | 2021-01-26 | Hydrogen fuel cell capable of recycling exhaust gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115472866A (en) * | 2022-09-22 | 2022-12-13 | 安庆杰曼汽车科技有限公司 | Control device with waste gas recycling function for hydrogen fuel cell |
| CN116230993A (en) * | 2023-05-10 | 2023-06-06 | 北京新研创能科技有限公司 | Tail gas treatment device for fuel cell |
-
2021
- 2021-01-26 CN CN202110102030.3A patent/CN112768728A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115472866A (en) * | 2022-09-22 | 2022-12-13 | 安庆杰曼汽车科技有限公司 | Control device with waste gas recycling function for hydrogen fuel cell |
| CN115472866B (en) * | 2022-09-22 | 2024-05-31 | 安庆杰曼汽车科技有限公司 | Control device with waste gas recycling function for hydrogen fuel cell |
| CN116230993A (en) * | 2023-05-10 | 2023-06-06 | 北京新研创能科技有限公司 | Tail gas treatment device for fuel cell |
| CN116230993B (en) * | 2023-05-10 | 2023-08-04 | 北京新研创能科技有限公司 | Tail gas treatment device for fuel cell |
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