CN114109727A - Methanol hydrogen energy distributed energy system - Google Patents
Methanol hydrogen energy distributed energy system Download PDFInfo
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- CN114109727A CN114109727A CN202111414273.7A CN202111414273A CN114109727A CN 114109727 A CN114109727 A CN 114109727A CN 202111414273 A CN202111414273 A CN 202111414273A CN 114109727 A CN114109727 A CN 114109727A
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- methanol
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 133
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 133
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 99
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 239000007789 gas Substances 0.000 claims abstract description 81
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000010248 power generation Methods 0.000 claims abstract description 3
- 238000012546 transfer Methods 0.000 claims description 19
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000002407 reforming Methods 0.000 claims description 11
- 238000006722 reduction reaction Methods 0.000 claims description 10
- 239000003054 catalyst Substances 0.000 claims description 9
- 238000010531 catalytic reduction reaction Methods 0.000 claims description 8
- 238000005485 electric heating Methods 0.000 claims description 5
- 230000008016 vaporization Effects 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 11
- 238000004891 communication Methods 0.000 description 8
- 230000008020 evaporation Effects 0.000 description 7
- 238000001704 evaporation Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 230000005611 electricity Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004523 catalytic cracking Methods 0.000 description 1
- 238000001651 catalytic steam reforming of methanol Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000006057 reforming reaction Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D13/00—Electric heating systems
- F24D13/04—Electric heating systems using electric heating of heat-transfer fluid in separate units of the system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/08—Electric heater
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention discloses a methanol hydrogen energy distributed energy system, which comprises: the hydrogen-rich generator is used for enabling the methanol water to generate hydrogen-rich gas, and the hydrogen-rich gas is combusted to provide power generation heat energy; a variable renewable energy device; the heat supply device comprises a heat conduction pipe, a heat conduction medium circulates in the heat conduction pipe, the heat conduction medium can convey heat to the hydrogen-rich generation device according to a preset conveying route, and the heat conduction medium can absorb the heat of the variable renewable energy device in the heat supply device. The invention skillfully stores the unstable light and wind energy into the heat-conducting medium, and then the heat-conducting medium can always provide the heat required by the hydrogen-rich generating device by reasonably controlling the conveying route of the heat-conducting medium, so that the hydrogen-rich generating device can be started smoothly or reacts smoothly to generate hydrogen-rich gas. Therefore, the energy consumption of the methanol-hydrogen energy distributed energy equipment is reduced, and the cost is reduced.
Description
Technical Field
The invention relates to the field of distributed energy systems, in particular to a methanol-hydrogen energy distributed energy system.
Background
The distributed energy system is characterized in that the energy system is arranged at a user side to meet the requirements of users on energy such as electricity, heat, cold energy and the like. Compared with centralized power grid power supply, the distributed energy system can improve the energy utilization rate, ensure the power supply safety, supply energy as required and have a flexible energy utilization mode. Therefore, distributed energy systems are becoming an important development direction in the global power industry and energy industry.
In the methanol-hydrogen energy distributed energy system, the methanol-hydrogen energy distributed energy system is beneficial to the reaction of methanol and water to generate hydrogen-rich gas, and then the hydrogen-rich gas is introduced into a hydrogen-rich heat engine to be combusted, so that a generator is driven to generate electricity. However, in the existing methanol-hydrogen energy distributed energy system, a large amount of heat is required for generating the hydrogen-rich gas, and the source of the heat causes energy consumption, thereby increasing the cost of the methanol-hydrogen energy distributed energy system.
Therefore, how to reduce the energy consumption of the methanol-hydrogen energy distributed energy system, thereby reducing the cost of the methanol-hydrogen energy distributed energy system, is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a methanol-hydrogen energy distributed energy system, which can reduce energy consumption, thereby reducing the cost of the methanol-hydrogen energy distributed energy system.
In order to achieve the purpose, the invention provides the following technical scheme:
a methanol-hydrogen energy distributed energy system comprising:
the hydrogen-rich generator is used for enabling the methanol water to generate hydrogen-rich gas, and the hydrogen-rich gas is combusted to provide power generation heat energy;
a variable renewable energy device;
the heat supply device comprises a heat conduction pipe, a heat conduction medium circulates in the heat conduction pipe, the heat conduction medium can convey heat to the hydrogen-rich generation device according to a preset conveying route, and the heat conduction medium can absorb the heat of the variable renewable energy device in the heat supply device.
Preferably, said variable renewable energy device is a photovoltaic device, and/or a wind energy device; an electric heating wire is arranged in the heat supply device and is connected with the photovoltaic device and/or the wind energy device through a wire.
Preferably, the hydrogen-rich gas generator includes an evaporator for vaporizing the methanol aqueous solution, and a reformer for generating the hydrogen-rich gas from the vaporized methanol water.
Preferably, the heat conduction pipes comprise a first heat conduction pipe and a second heat conduction pipe, the first heat conduction pipe is communicated with the heat supply device, the reformer, the evaporator and the heat supply device in sequence, and the second heat conduction pipe is used for being communicated with the heat supply device, the evaporator and the heat supply device;
if the temperature of the heat-conducting medium is greater than a set upper limit temperature value, the first heat-conducting pipe is cut off, and the second heat-conducting pipe is conducted; if the temperature of the heat-conducting medium is smaller than or equal to the set upper limit temperature value, the first heat-conducting pipe is conducted, and the second heat-conducting pipe is cut off.
Preferably, the method further comprises the following steps:
a hydrogen-rich heat engine for receiving the hydrogen-rich gas and combusting the hydrogen-rich gas;
the tail gas pipe, the tail gas pipe is used for carrying the tail gas that the hydrogen-rich heat engine produced, the tail gas pipe connects gradually the hydrogen-rich heat engine the reformer the evaporimeter reaches heating device, heat-conducting medium can the heating device internal absorption the heat of tail gas.
Preferably, a catalytic reduction device is further arranged between the evaporator and the heat supply device along the conveying direction of the tail gas, and a nitrogen oxide reduction catalyst is arranged in the catalytic reduction device.
Preferably, during normal operation, if the tail gas can provide reforming heat for the reformer, the first heat transfer pipe and the second heat transfer pipe are cut off; if the off-gas is not capable of providing reforming heat to the reformer, the first heat transfer pipe is conducted, or the second heat transfer pipe is conducted.
Preferably, the variable renewable energy device and the hydrogen-rich heat engine are both capable of supplying power to electrical equipment, and the variable renewable energy device and the hydrogen-rich heat engine are arranged in parallel.
Preferably, the electric equipment is a storage battery.
Preferably, the heat conductive pipe further comprises a third heat conductive pipe for connecting the heat supply device, the air conditioning equipment and the heat supply device.
It can be seen from the above technical solution that: variable energy sources such as light or wind energy have instability. The invention skillfully stores the unstable light and wind energy into the heat-conducting medium, and then the heat-conducting medium can always provide the heat required by the hydrogen-rich generating device by reasonably controlling the conveying route of the heat-conducting medium, so that the hydrogen-rich generating device can be started smoothly or reacts smoothly to generate hydrogen-rich gas.
In the invention, heat is provided for the hydrogen-rich generating device through renewable energy sources so as to ensure the hydrogen-rich generating device to start or react smoothly. Therefore, the energy consumption of the methanol-hydrogen energy distributed energy equipment is reduced, and the cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a methanol-hydrogen energy distributed energy system provided by an embodiment of the invention;
fig. 2 is a schematic structural diagram of a methanol-hydrogen energy distributed energy system provided in an embodiment of the present invention when applied to a 5G communication base station.
Detailed Description
The embodiment of the invention discloses a methanol-hydrogen energy distributed energy system which can reduce energy consumption, so that the cost of the methanol-hydrogen energy distributed energy system is reduced.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a methanol hydrogen energy distributed energy system, which comprises: hydrogen-rich generating devices, variable renewable energy devices, and heat supplying devices. Wherein the hydrogen-rich gas generator is used for generating hydrogen-rich gas from methanol and water. The hydrogen-rich gas is a product obtained after the methanol and the water are completely or incompletely converted, and comprises hydrogen, carbon dioxide and methanol. The variable renewable energy device refers to a device capable of collecting variable renewable energy. The variable renewable energy sources include light energy, wind energy and other energy sources.
The heat supply device comprises a heat conduction pipe, and a heat conduction medium circulates in the heat conduction pipe. When the heat conduction pipe passes through the hydrogen-rich generator, the heat conduction medium in the heat conduction pipe transfers heat to the hydrogen-rich generator, so that the hydrogen-rich generator obtains starting heat or reaction heat. The variable renewable energy device is capable of providing heat to the heat transfer medium.
Variable energy sources such as light or wind energy have instability. The invention skillfully stores the unstable light and wind energy into the heat-conducting medium, and then the heat-conducting medium can always provide the heat required by the hydrogen-rich generating device by reasonably controlling the conveying route of the heat-conducting medium, so that the hydrogen-rich generating device can be started smoothly or reacts smoothly to generate hydrogen-rich gas.
In the invention, heat is provided for the hydrogen-rich generating device through renewable energy sources so as to ensure the hydrogen-rich generating device to start or react smoothly. Therefore, the energy consumption of the methanol-hydrogen energy distributed energy equipment is reduced, and the cost is reduced.
It should be noted that the heat transfer medium may be water or heat transfer oil, and this is not limited herein.
The variable renewable energy device is a photovoltaic device, and/or a wind energy device. The mode of obtaining the variable renewable energy by the heat-conducting medium is as follows: an electric heating wire is arranged in the heating device and used for heating the heat-conducting medium. The electric heating wire is connected with the photovoltaic device and/or the wind energy device through a lead.
The hydrogen rich generation device specifically includes an evaporator and a reformer. The evaporator is used for vaporizing the methanol water solution, and the reformer is used for generating hydrogen-rich gas from the vaporized methanol water.
The vaporized methanol water can generate hydrogen and carbon monoxide through catalytic cracking reaction (R1) in the reformer, so that hydrogen is released; in the presence of water, the carbon monoxide can further perform a steam shift reaction (R2) with the water to release hydrogen and carbon dioxide; the overall reaction is known as methanol steam reforming (R3), and the resulting gas is known as hydrogen-rich gas, the chemical reaction formula is as follows:
R1:
ΔH＝90.2kJ mol-1
R2:
ΔH＝-41.2kJ mol-1
R3:
ΔH＝49.7kJ mol-1
the methanol-hydrogen energy distributed energy equipment provided by the embodiment utilizes methanol as a raw material, and compared with a distributed energy system utilizing hydrogen as a hydrogen energy raw material in the prior art, the storage and transportation of the methanol raw material can be completed at normal temperature and normal pressure, high-cost and high-energy-consumption processing processes such as compression and liquefaction are not needed, pipeline transportation is avoided, the cost is reduced, the hydrogen embrittlement phenomenon is avoided, and no explosion risk is generated in the storage and transportation processes.
In addition, the methanol-hydrogen energy distributed energy equipment provided by the embodiment of the invention utilizes the hydrogen-rich heat engine to cooperate with the generator to convert hydrogen energy into electric energy, does not need to use a fuel cell, does not need to purify the hydrogen-rich gas, does not need to adopt noble metal as an electrode material, can reduce the cost, and has long service life because the hydrogen-rich heat engine does not cause poisoning due to impurities in the hydrogen-rich gas.
The heat pipes will be described as follows: the heat conductive pipe includes a first heat conductive pipe and a second heat conductive pipe. The first heat conduction pipe is communicated with the heat supply device, the reformer, the evaporator and the heat supply device in sequence. The heat-conducting medium in the first heat-conducting pipe absorbs heat in the heat supply device, then transfers the heat to the reformer and the evaporator in sequence, and then returns to the heat supply device. The second heat conduction pipe is communicated with the heat supply device, the evaporator and the heat supply device in sequence. The heat conducting medium in the second heat conducting pipe absorbs heat in the heat supply device, then transfers the heat to the evaporator, and finally returns to the heat supply device.
The methanol water needs to be subjected to reforming reaction under the action of a reforming catalyst, and the temperature required by the reforming catalyst is 200-300 ℃, and if the temperature is too high, the reforming catalyst is aged. The evaporation in the evaporator is not critical to the upper limit of the temperature. If the temperature of the heat-conducting medium is too high and exceeds the set upper limit temperature value, the first heat-conducting pipe is closed, and the second heat-conducting pipe is simultaneously conducted. When the temperature of the heat-conducting medium exceeds the set upper limit value, the heat-conducting medium preferentially transfers heat to the evaporator, and after heat exchange with the evaporator, if the temperature is reduced to be lower than the set upper limit temperature value, the second heat-conducting pipe is cut off, and the first heat-conducting pipe is opened.
Since the evaporation heat required by the evaporator is lower than the reforming heat in the reformer, when the temperature of the heat transfer medium is equal to or lower than the set upper limit temperature value, heat exchange with the reformer is prioritized, and then heat exchange with the evaporator is performed. The invention limits the upper limit temperature value to about 380 ℃.
When the first heat transfer pipe is closed and the second heat transfer pipe is opened, the methanol water is evaporated to steam in the evaporator. The methanol steam can enter the hydrogen-rich heat engine through the reformer to be combusted, so that the methanol hydrogen energy distributed energy system is started. The reformer at this time substantially corresponds to a communication passage for communicating the evaporator and the hydrogen-rich heat engine.
The heat utilization mode of the tail gas of the hydrogen-rich heat engine is described as follows: the methanol-hydrogen energy distributed energy system further comprises a hydrogen-rich heat engine and a tail gas pipe. The hydrogen-rich heat engine is used for receiving the hydrogen-rich gas generated by the hydrogen-rich generating device and combusting the hydrogen-rich gas to generate heat energy, and the heat energy enters the generator to drive the generator to generate electricity. The tail gas pipe is used for conveying tail gas generated by the hydrogen-rich heat engine. The tail gas pipe is connected with the hydrogen-rich heat engine, the reformer, the evaporator and the heat supply device in sequence.
The tail gas generated by the hydrogen-rich heat engine has higher temperature, and if the tail gas is directly discharged, the waste of heat energy is caused. This embodiment makes tail gas exchange heat with reformer, evaporimeter and heating device in proper order. The tail gas provides reaction heat for the reformer, evaporation heat for the evaporator, and the heat conducting medium in the heat supply device absorbs the residual heat in the tail gas.
In the embodiment, a catalytic reduction device is arranged between the evaporator and the heat supply device, and a nitrogen oxide reduction catalyst is arranged in the catalytic reduction device. The reason for disposing the catalytic reduction device between the evaporator and the heat supply device is as follows: the applicant has found that the temperature of the tail gas discharged from the hydrogen-rich heat engine is about 400 ℃ to 600 ℃. After passing through a reformer and an evaporator, the temperature of the tail gas is reduced to 80-200 ℃. In the temperature range of 80-200 ℃, the catalyst is just suitable for the reduction reaction of tail gas. The tail gas enters the catalytic reduction device for reduction reaction, then enters the heat supply device, is further absorbed by the heat-conducting medium, and is finally discharged into the atmosphere.
In the prior art, the exhaust gas is subjected to a reduction reaction in advance to purify the exhaust gas. The reduction reaction is an endothermic reaction, however, and results in a decrease in the temperature of the exhaust gas. In this embodiment, the offgas can supply the heat of reaction of the reformer and the heat of evaporation of the evaporator, and the temperature of the offgas after passing through the reformer and the evaporator can be lowered to a temperature range suitable for the reduction reaction. The embodiment not only fully absorbs the heat in the tail gas, but also can ensure that the reduction reaction is carried out in a proper temperature range.
It should be noted that in the prior art, urea is injected into the exhaust gas, and the exhaust gas is changed into clean exhaust gas without pollution under the action of the three-way catalyst. The applicant found that: methanol is combusted, and the tail gas has no sulfur but more nitrogen oxides. And the tail gas contains methanol and hydrogen which are not combusted, and the methanol and the hydrogen can reduce nitrogen in the tail gas. Therefore, urea does not need to be sprayed into the tail gas, so that a urea device is omitted, and the cost is reduced. In this embodiment, methanol and hydrogen in the exhaust gas reduce nitrogen in the exhaust gas at an appropriate temperature and under the action of the nitrogen oxide reduction catalyst.
During normal operation, the tail gas generated by the hydrogen-rich heat engine can basically provide reforming heat for the reformer and evaporation heat for the evaporator. If the fuel in the hydrogen-rich heat engine is not well combusted, and the heat of the tail gas is insufficient, the heating device is started to conduct the first heat-conducting pipe or the second heat-conducting pipe. If the fuel combustion condition in the hydrogen-rich heat engine is good and the heat quantity of the tail gas is enough, the first heat-conducting pipe and the second heat-conducting pipe are cut off.
During the start-up phase, no tail gas is produced, so a heating device is required to provide the start-up heat. If the temperature of the heat-conducting medium exceeds the set upper limit temperature value, the heat-conducting medium exchanges heat with the evaporator through the second heat-conducting pipe, after the temperature value of the heat-conducting medium is reduced to be lower than the set upper limit temperature value, the first heat-conducting pipe is conducted, the heat-conducting medium flows through the reformer and the evaporator in sequence, reaction heat is provided for the reformer, evaporation heat is provided for the evaporator, and therefore the system is started. After start-up, both the first heat transfer tube and the second heat transfer tube are blocked if the off-gas is able to provide the required heat to the reformer and the evaporator. After starting, if the tail gas can not provide the needed heat for the reformer and the evaporator, the first heat conduction pipe or the second heat conduction pipe is selected to be conducted according to the temperature condition of the heat-conducting medium.
It should be noted that the above-mentioned methanol-hydrogen energy distributed energy resource equipment further includes a methanol tank and a water storage tank, and the methanol tank and the water storage tank are respectively communicated with the mixer. During the application, carry the methyl alcohol in the methyl alcohol jar to the blender, carry the water in the water storage tank to the blender and can make methyl alcohol and water mix to form methyl alcohol water. The methanol water is pumped into the evaporator by the pump.
From the above description it is known that a variable renewable energy device is capable of heating a heat transfer medium by means of an electric heating wire. In addition, the variable renewable energy device is capable of providing electrical energy while the energy source in the variable renewable energy device is in a steady state. Therefore, the variable renewable energy device and the hydrogen-rich heat engine are arranged in parallel. If the variable renewable energy source is stable, for example, the illumination is sufficient, and the wind power is large, the variable renewable energy source device can be used for supplying power to the electric equipment. The hydrogen rich heat engine at this time is stopped. And when the variable renewable energy source is unstable, the hydrogen-rich heat engine is started again to supply power. Thus, energy is saved.
The electric equipment is a battery.
The heat supply device provides heat for the hydrogen-rich generating device and provides heat energy for external air conditioning equipment. The heat conductive pipe includes a third heat conductive pipe in addition to the first heat conductive pipe and the second heat conductive pipe. The third heat conduction pipe is sequentially connected with the heat supply device, the air conditioning equipment and the heat supply device.
It should be noted that the heat energy provided by the heat-conducting medium can provide cold energy for the air conditioner by cooperating with the lithium bromide heat pump refrigeration unit.
Next, the application of the methanol-hydrogen energy distributed energy system in the 5G communication base station is described: the wind energy device comprises a wind energy collecting device, and the photovoltaic device comprises a solar energy collecting device. The wind energy collecting device and the solar energy collecting device are both arranged beside an outdoor signal tower and a base station communication machine room, and are preferably arranged on the roof of the base station communication machine room, the outer wall of the outdoor signal tower and the like. The photovoltaic device and the wind energy device supply the generated electric energy to a storage battery of the base station so as to support the electricity utilization needs of the communication equipment and the outdoor signal tower. The photovoltaic device and the wind energy device are connected with the heat supply device and used for providing heat energy for the heat supply device, and the heat supply device provides heat energy and cold energy for the air conditioner, so that heating and refrigerating of the machine room are achieved.
When wind energy and solar energy cannot provide energy for the system, the heat-conducting medium in the heat supply device provides reaction heat and evaporation heat for the reforming reactor and the evaporator so as to start the methanol-hydrogen energy distributed energy system.
After the methanol-hydrogen energy distributed energy system is started, methanol in a methanol tank and water in a water storage tank are mixed in a mixer to form an alcohol-water solution, the alcohol-water solution is pumped to an evaporator, and the evaporated alcohol-water solution enters a reforming reactor to generate hydrogen-rich gas. The hydrogen-rich gas is combusted in the hydrogen-rich heat engine to do work so as to enable the generator to generate electricity. The electric energy output by the generator continuously supplies power for a storage battery in the communication machine room of the base station so as to support the power consumption requirements of communication equipment, outdoor signal towers and other equipment. The heat supply device provides energy for the air conditioner by recovering tail gas energy and absorbing energy of the wind energy device and the photovoltaic device, so that heating and refrigerating of the machine room are realized.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A methanol-hydrogen energy distributed energy system is characterized by comprising:
the hydrogen-rich generator is used for enabling the methanol water to generate hydrogen-rich gas, and the hydrogen-rich gas is combusted to provide power generation heat energy;
a variable renewable energy device;
the heat supply device comprises a heat conduction pipe, a heat conduction medium circulates in the heat conduction pipe, the heat conduction medium can convey heat to the hydrogen-rich generation device according to a preset conveying route, and the heat conduction medium can absorb the heat of the variable renewable energy device in the heat supply device.
2. The methanol-hydrogen energy distributed energy system according to claim 1, wherein the variable renewable energy device is a photovoltaic device, and/or a wind energy device; an electric heating wire is arranged in the heat supply device and is connected with the photovoltaic device and/or the wind energy device through a wire.
3. The methanol-hydrogen energy distributed energy system according to claim 1, wherein the hydrogen-rich generator includes an evaporator for vaporizing the methanol-water solution and a reformer for generating the hydrogen-rich gas from the vaporized methanol-water.
4. The methanol hydrogen energy distributed energy system of claim 3, wherein the heat conduction pipe comprises a first heat conduction pipe and a second heat conduction pipe, the first heat conduction pipe is communicated with the heat supply device, the reformer, the evaporator and the heat supply device in sequence, and the second heat conduction pipe is used for communicating the heat supply device, the evaporator and the heat supply device;
if the temperature of the heat-conducting medium is greater than a set upper limit temperature value, the first heat-conducting pipe is cut off, and the second heat-conducting pipe is conducted; if the temperature of the heat-conducting medium is smaller than or equal to the set upper limit temperature value, the first heat-conducting pipe is conducted, and the second heat-conducting pipe is cut off.
5. The methanol-hydrogen energy distributed energy system according to claim 4, further comprising:
a hydrogen-rich heat engine for receiving the hydrogen-rich gas and combusting the hydrogen-rich gas;
the tail gas pipe, the tail gas pipe is used for carrying the tail gas that the hydrogen-rich heat engine produced, the tail gas pipe connects gradually the hydrogen-rich heat engine the reformer the evaporimeter reaches heating device, heat-conducting medium can the heating device internal absorption the heat of tail gas.
6. The methanol-hydrogen energy distributed energy system according to claim 5, wherein a catalytic reduction device is further arranged between the evaporator and the heat supply device along the conveying direction of the tail gas, and a nitrogen oxide reduction catalyst is arranged in the catalytic reduction device.
7. The methanol-hydrogen energy distributed energy system of claim 5, wherein during normal operation, if the tail gas can provide reforming heat for the reformer, the first heat conduction pipe and the second heat conduction pipe are cut off; if the off-gas is not capable of providing reforming heat to the reformer, the first heat transfer pipe is conducted, or the second heat transfer pipe is conducted.
8. The methanol-hydrogen energy distributed energy system according to claim 1, wherein the variable renewable energy device and the hydrogen-rich heat engine are both capable of supplying power to electric equipment, and the variable renewable energy device is arranged in parallel with the hydrogen-rich heat engine.
9. The methanol-hydrogen energy distributed energy system according to claim 8, wherein the electric equipment is a storage battery.
10. The methanol-hydrogen energy distributed energy system of claim 1, wherein the heat conduction pipe further comprises a third heat conduction pipe, and the third heat conduction pipe is used for connecting the heat supply device, an air conditioner and the heat supply device.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120226080A1 (en) * | 2009-08-13 | 2012-09-06 | Silicon Fire Ag | Method and system for providing a hydrocarbon-based energy carrier using a portion of renewably produced methanol and a portion of methanol that is produced by means of direct oxidation, partial oxidation, or reforming |
| CN103897736A (en) * | 2014-03-17 | 2014-07-02 | 中国科学院工程热物理研究所 | Integrated system for production, storage, transportation and utilization of hydrogen energy on basis of solar energy and biomass gasification |
| CN104577168A (en) * | 2014-12-17 | 2015-04-29 | 广东合即得能源科技有限公司 | Methanol water hydrogen production power generation system and hydrogen production power generation method |
| CN104596001A (en) * | 2014-12-29 | 2015-05-06 | 广东合即得能源科技有限公司 | Air conditioning system based on methanol water hydrogen manufacturing and power generating system and control method thereof |
| CN105024628A (en) * | 2015-06-26 | 2015-11-04 | 广东合即得能源科技有限公司 | Energy complementation self power supply system and power supply method |
| CN107473182A (en) * | 2017-04-28 | 2017-12-15 | 王海东 | Conduction oil is heated by the method and device of hydrogen from methyl alcohol using solar power generation |
| CN206947968U (en) * | 2016-04-11 | 2018-01-30 | 上海合既得动氢机器有限公司 | Energy circulation type charging system |
| CN109687002A (en) * | 2018-11-13 | 2019-04-26 | 中广核研究院有限公司 | A kind of distributed triple-generation system |
-
2021
- 2021-11-25 CN CN202111414273.7A patent/CN114109727A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120226080A1 (en) * | 2009-08-13 | 2012-09-06 | Silicon Fire Ag | Method and system for providing a hydrocarbon-based energy carrier using a portion of renewably produced methanol and a portion of methanol that is produced by means of direct oxidation, partial oxidation, or reforming |
| CN103897736A (en) * | 2014-03-17 | 2014-07-02 | 中国科学院工程热物理研究所 | Integrated system for production, storage, transportation and utilization of hydrogen energy on basis of solar energy and biomass gasification |
| CN104577168A (en) * | 2014-12-17 | 2015-04-29 | 广东合即得能源科技有限公司 | Methanol water hydrogen production power generation system and hydrogen production power generation method |
| WO2016095392A1 (en) * | 2014-12-17 | 2016-06-23 | 广东合即得能源科技有限公司 | System and method for generating electricity via hydrogen generation from methanol-water |
| CN104596001A (en) * | 2014-12-29 | 2015-05-06 | 广东合即得能源科技有限公司 | Air conditioning system based on methanol water hydrogen manufacturing and power generating system and control method thereof |
| CN105024628A (en) * | 2015-06-26 | 2015-11-04 | 广东合即得能源科技有限公司 | Energy complementation self power supply system and power supply method |
| CN206947968U (en) * | 2016-04-11 | 2018-01-30 | 上海合既得动氢机器有限公司 | Energy circulation type charging system |
| CN107473182A (en) * | 2017-04-28 | 2017-12-15 | 王海东 | Conduction oil is heated by the method and device of hydrogen from methyl alcohol using solar power generation |
| CN109687002A (en) * | 2018-11-13 | 2019-04-26 | 中广核研究院有限公司 | A kind of distributed triple-generation system |
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