CN211295278U - Distributed fuel cell power generation system - Google Patents
Distributed fuel cell power generation system Download PDFInfo
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- CN211295278U CN211295278U CN201921848990.9U CN201921848990U CN211295278U CN 211295278 U CN211295278 U CN 211295278U CN 201921848990 U CN201921848990 U CN 201921848990U CN 211295278 U CN211295278 U CN 211295278U
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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 relates to a distributing type fuel cell power generation system, including central dispatch module, equipment intelligent management module to and by methyl alcohol hydrogen manufacturing equipment, fuel cell power generation equipment, No. 1 DC-DC module, energy storage module, No. 2 DC-DC module, consumer. The device intelligent management module controls the methanol hydrogen production device to deliver hydrogen to the fuel cell power generation device, the fuel cell power generation device delivers electric energy to the No. 1 DC-DC module, the No. 1 DC-DC module delivers electric energy to the energy storage module, the energy storage module delivers electric energy to the No. 2 DC-DC module, and the No. 2 DC-DC module outputs the electric energy. The equipment intelligent management module collects state signals of all the equipment of the power generation module and sends the state signals to the central scheduling module. The utility model discloses a methyl alcohol hydrogen manufacturing has realized that self can generate electricity under the condition of a small amount of outside supports to the system of carrying of electric energy is provided to the equipment that needs the power consumption, has reduced the operation and maintenance burden of maintenance of equipment personnel.
Description
Technical Field
The utility model relates to a new forms of energy technical field especially relates to an energy storage power generation system.
Background
At present, the reserved quantity of new energy electric vehicles in China increases year by year, the charging power of the electric vehicles is increased to more than 100kW for realizing quick charging, the loads of a power grid can be greatly increased when the electric vehicles are charged, and the requirements on the infrastructure of the power grid are higher. Based on the above problems, one solution is to build a dedicated charging line, but this solution is expensive. The distributed power generation is used as a supplement of a power grid, can effectively reduce the load of the power grid, improves the safety and stability of the power grid, and is a good solution for solving the problem of the load of the power grid.
Fuel cell systems are used in new green energy systems due to their efficient clean power generation function. However, the output curve of the fuel cell is slow, and the service life of the fuel cell is reduced due to high-power generation. Therefore, in order to ensure the service life of the fuel cell, a defect of insufficient output power of the fuel cell naturally occurs. Furthermore the high pressure fuel hydrogen required by the fuel cell is difficult to transport and store,
CN 110350583A discloses a system for producing hydrogen by electrolyzing water, but the hydrogen production by electrolyzing water needs a high-pressure electrolytic tank, so that the equipment investment is large; the occupied area of the hydrogen production station is large due to factors such as the volume and the layout of equipment; the electrolyzed water has high requirement on the purity of water and needs special pure water equipment; the hydrogen production rate is slow, a large amount of electric energy is consumed, and the efficiency is low; the comprehensive cost of hydrogen production by water electrolysis is high. Therefore, from the perspective of reducing equipment investment and reducing operation cost, the hydrogen production by water electrolysis is not suitable for distributed power generation.
SUMMERY OF THE UTILITY MODEL
The utility model provides a can move by oneself, turn into the distributed fuel cell power generation system of electric energy with methyl alcohol.
The utility model discloses a realize like this:
the intelligent management system comprises a central scheduling module and an intelligent equipment management module. The system comprises methanol hydrogen production equipment, fuel cell power generation equipment, a No. 1 DC-DC module, an energy storage module, a No. 2 DC-DC module and electric equipment.
The device intelligent management module controls the methanol hydrogen production device to deliver hydrogen to the fuel cell power generation device, the fuel cell power generation device delivers electric energy to the No. 1 DC-DC module, the No. 1 DC-DC module delivers electric energy to the energy storage module, the energy storage module delivers electric energy to the No. 2 DC-DC module, and then the No. 2 DC-DC module delivers electric energy to electric equipment.
The equipment intelligent management module collects state signals of all the power generation module equipment and sends the states to the central scheduling module.
The methanol hydrogen production equipment comprises a methanol fuel tank, a methanol pump, a reactor and a hydrogen buffer tank. The fuel cell power generation equipment comprises a hydrogen fuel cell stack, a fuel cell control system, a hydrogen gas supply system, an air supply system and a heat dissipation system. The energy storage module is a super capacitor and/or a power battery and/or a high-power charging and discharging battery which are utilized in a gradient manner.
The methanol pump pumps the methanol water solution in the methanol fuel tank into the reactor, the methanol and the water are catalytically reacted in the reactor reforming chamber to generate hydrogen, and the hydrogen is purified by the purifier and then injected into the hydrogen buffer tank. And a pressure reducing valve at the hydrogen outlet of the buffer tank is connected with a hydrogen inlet pipeline of the fuel cell.
A fuel cell power plant includes a hydrogen fuel cell stack, a fuel cell control system, a hydrogen gas supply system, an air supply system, and a heat dissipation system. The fuel cell power generation equipment generates power by reacting hydrogen generated by hydrogen production from methanol with oxygen in the air.
Both the No. 1 DC-DC module and the No. 2 DC-DC module have power limitation.
The energy storage module is composed of a plurality of super capacitors and/or power batteries used in a gradient manner and/or high-power charging and discharging battery modules.
The distributed fuel cell power generation system can be provided with a plurality of power generation modules which are connected in parallel, each energy charging module is provided with a corresponding equipment intelligent management module, and the central dispatching module receives state signals of all the equipment intelligent management modules.
Has the advantages that:
the utility model provides a this kind of distributed fuel cell power generation system utilizes methyl alcohol hydrogen manufacturing through adding methyl alcohol, has realized only needing a small amount of mains supply and does not need mains supply even and can generate electricity to the system that provides the electric energy to the equipment that needs the electricity consumption and carry has reduced the operation and maintenance burden of plant maintenance personnel.
Drawings
Fig. 1 is a schematic structural diagram of a system according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a system of a plurality of power generation modules according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a plurality of power generation modules and capacitor modules according to an embodiment of the invention.
Detailed Description
The intelligent management system comprises a central scheduling module and an intelligent equipment management module. The system comprises methanol hydrogen production equipment, fuel cell power generation equipment, a No. 1 DC-DC module, an energy storage module, a No. 2 DC-DC module and electric equipment.
The device intelligent management module controls the methanol hydrogen production device to deliver hydrogen to the fuel cell power generation device, the fuel cell power generation device delivers electric energy to the No. 1 DC-DC module, the No. 1 DC-DC module delivers electric energy to the energy storage module, the energy storage module delivers electric energy to the No. 2 DC-DC module, and then the No. 2 DC-DC module delivers electric energy to electric equipment.
The methanol hydrogen production equipment comprises a methanol fuel tank, a methanol pump, a reactor and a hydrogen buffer tank. The fuel cell power generation equipment comprises a hydrogen fuel cell stack, a fuel cell control system, a hydrogen gas supply system, an air supply system and a heat dissipation system. The energy storage module is a super capacitor and/or a power battery and/or a high-power charging and discharging battery which are utilized in a gradient manner.
The equipment intelligent management module collects all the state signals of the equipment of the energy charging module and sends the states to the central scheduling module.
The methanol pump pumps the methanol water solution in the methanol fuel tank into the reactor, the methanol and the water are catalytically reacted in the reactor reforming chamber to generate hydrogen, and the hydrogen is purified by the purifier and then injected into the hydrogen buffer tank. And a pressure reducing valve at the hydrogen outlet of the buffer tank is connected with a hydrogen inlet pipeline of the fuel cell.
A fuel cell power plant includes a hydrogen fuel cell stack, a fuel cell control system, a hydrogen gas supply system, an air supply system, and a heat dissipation system. The fuel cell power generation equipment generates power by reacting hydrogen generated by hydrogen production from methanol with oxygen in the air.
The hydrogen production rate is controlled by the intelligent management system according to the actual operation power P of the fuel cellpemfcAnd (4) calculating.
The reaction formula of the fuel cell electrochemistry is as follows:
2H2(g)+O2(g)＝2H2O(l)
ΔH＝-286kJ/mol
the electricity usage per kilowatt-hour is expressed as 3600kJ in heat. Assuming that the power generation efficiency of the fuel cell is η, the total energy required to consume hydrogen per kilowatt-hour is:
QH2＝3600÷η(kJ)
the hydrogen consumption is
n＝QH2÷286(mol)
The hydrogen consumption rate under standard conditions was:
q＝282÷η(L/kW·h)
the actual operating power is PpemfcHas a hydrogen consumption rate of
qpemfc＝Ppemfc×q(L/h)
And the equipment intelligent management system sends the calculation result to the hydrogen production equipment, and the hydrogen production equipment controls the speed of pumping the methanol pump into the reactor to realize the control of the hydrogen production rate.
The hydrogen enters the buffer tank to stabilize the pressure after coming out from the purifier of the hydrogen production equipment, is decompressed to the working pressure of the fuel cell through the pressure reducing valve and then is input into the fuel cell through the hydrogen supply pipeline, and generates electrochemical reaction with the oxygen to generate electric power, and the reaction formula is as follows:
2H2(g)+O2(g)＝2H2O(l)
both the No. 1 DC-DC module and the No. 2 DC-DC module have power limitation. Preferably, the system comprises a No. 1 DC-DC module between the output end of the fuel cell and the input end of the super capacitor, and a No. 2 DC-DC module between the output end of the super capacitor and the direct current bus. The No. 1 DC-DC module can convert the output voltage of the fuel cell into the charging voltage of the super capacitor and has the function of limiting the output power; the No. 2 DC-DC module converts the output voltage of the super capacitor into the required power utilization voltage and has the output power limiting function.
Preferably, electricity generated by the fuel cell is charged into the super capacitor for storage through the No. 1 DC-DC module. The control of the operating power of the fuel cell is realized by controlling the output power of the No. 1 DC-DC module.
After the load is connected, the central dispatching system is according to the power P of the load1And capacity Q1And (3) controlling the N groups of super capacitor banks connected in parallel according to the requirements, and releasing the stored electric energy through the No. 2 DC-DC module. Setting the capacity of a single group of super capacitors as Q, the discharge power P, the number N of the capacitor groups connected to the direct current bus according to
N1≥P1/P (integer)
And
N2≥Q1/Q (integer)
Comparing the sizes of the two, and getting the larger one.
The energy storage module is composed of a plurality of super capacitors and/or power batteries used in a gradient manner and/or high-power charging and discharging battery modules.
The distributed fuel cell power generation system can be provided with a plurality of power generation modules which are connected in parallel, each power generation module is provided with a corresponding equipment intelligent management module, and the central scheduling module receives state signals of all the equipment intelligent management modules.
Preferably, the intelligent management system for the equipment comprises a data acquisition unit and a controller, wherein the data acquisition unit can acquire real-time key data of the equipment of the distributed power generation system, so that the intelligent management system for the equipment can monitor the running state of the equipment in real time and transmit the equipment state to the central dispatching system through the internet. And the equipment intelligent management system controls the running state of each equipment in the distributed power generation system according to the command of the central scheduling system and the running data of the equipment, so that the online scheduling of the distributed power generation system is realized.
Preferably, the central dispatching system monitors the operation state of the distributed power generation systems in real time, notifies a manager to handle the abnormal distributed power generation systems when the abnormal distributed power generation systems are abnormal, and can dispatch a plurality of distributed power generation systems to supply power to the power utilization facilities according to the power utilization requirements of the power utilization facilities and distribute the power.
Claims (4)
1. A distributed fuel cell power generation system, characterized by: the intelligent management system comprises a central scheduling module and an intelligent equipment management module;
the system also comprises a power generation module and electric equipment, wherein the power generation module consists of methanol hydrogen production equipment, fuel cell power generation equipment, a No. 1 DC-DC module, an energy storage module and a No. 2 DC-DC module;
the device intelligent management module controls the methanol hydrogen production device to deliver hydrogen to the fuel cell power generation device, the fuel cell power generation device delivers electric energy to the No. 1 DC-DC module, the No. 1 DC-DC module delivers electric energy to the energy storage module, the energy storage module delivers electric energy to the No. 2 DC-DC module, and the No. 2 DC-DC module outputs electric energy;
the equipment intelligent management module collects state signals of all the equipment of the power generation module and sends the state signals to the central scheduling module.
2. A distributed fuel cell power generation system according to claim 1, wherein: the methanol hydrogen production equipment comprises a methanol fuel tank, a methanol pump, a reactor and a hydrogen buffer tank;
the fuel cell power generation equipment comprises a hydrogen fuel cell stack, a fuel cell control system, a hydrogen gas supply system, an air supply system and a heat dissipation system;
the energy storage module is a super capacitor and/or a power battery and/or a high-power charging and discharging battery which are utilized in a gradient manner.
3. A distributed fuel cell power generation system according to claim 2, wherein: the energy storage module is composed of a plurality of super capacitors and/or power batteries used in a gradient manner and/or high-power charging and discharging battery modules.
4. A distributed fuel cell power generation system according to claim 3, wherein: the distributed fuel cell power generation system can be provided with a plurality of power generation modules which are connected in parallel, each power generation module is provided with a corresponding equipment intelligent management module, and the central scheduling module receives state signals of all the equipment intelligent management modules.
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| CN201921848990.9U CN211295278U (en) | 2019-10-30 | 2019-10-30 | Distributed fuel cell power generation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112349937A (en) * | 2020-11-13 | 2021-02-09 | 东方电气集团东方锅炉股份有限公司 | Distributed energy system of methanol hydrogen production coupled fuel cell and operation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112349937A (en) * | 2020-11-13 | 2021-02-09 | 东方电气集团东方锅炉股份有限公司 | Distributed energy system of methanol hydrogen production coupled fuel cell and operation method |
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