CN214840081U - Hydrogenation comprehensive energy station - Google Patents

Hydrogenation comprehensive energy station Download PDF

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Publication number
CN214840081U
CN214840081U CN202023017982.5U CN202023017982U CN214840081U CN 214840081 U CN214840081 U CN 214840081U CN 202023017982 U CN202023017982 U CN 202023017982U CN 214840081 U CN214840081 U CN 214840081U
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natural gas
hydrogen
unit
heat exchange
exchange unit
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CN202023017982.5U
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鹿晓斌
王江涛
郭雷
贺同强
吴青
曲顺利
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China National Offshore Oil Corp CNOOC
CNOOC Petrochemical Engineering Co Ltd
CNOOC Oil and Petrochemicals Co Ltd
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China National Offshore Oil Corp CNOOC
CNOOC Petrochemical Engineering Co Ltd
CNOOC Oil and Petrochemicals Co Ltd
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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
    • Y02E60/32—Hydrogen storage
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/45—Hydrogen technologies in production processes

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Abstract

The utility model relates to a power station is synthesized in hydrogenation, power station is synthesized in hydrogenation includes: the system comprises a liquefied natural gas supply unit, a heat exchange unit, a hydrogen supply device, a natural gas collection unit and a hydrogen transfer unit; the liquefied natural gas supply unit is connected with a liquid inlet of the heat exchange unit; the liquid outlet of the heat exchange unit is connected with the natural gas collecting unit; the air inlet of the hydrogen supply device is connected with the air inlet of the heat exchange unit; and the gas outlet of the heat exchange unit is connected with the hydrogen transfer unit. The utility model discloses in, form and hydrogen filling through adopting the heat transfer with the high quality cold energy in the liquefied natural gas combine together, have improved the volume storage density of the hydrogen of filling in-process, have obtained multiple product simultaneously, have solved the extravagant problem with compressed gas hydrogen storage volume storage density is low of liquefied natural gas cold energy.

Description

Hydrogenation comprehensive energy station
Technical Field
The utility model relates to a hydrogen can technical field, concretely relates to energy station is synthesized in hydrogenation.
Background
With the development of economic society, environmental pollution and ecological environment protection situation become more severe, the adjustment of energy structure is urgently needed, and green clean energy such as natural gas, hydrogen and the like are more and more concerned by people.
In recent years, the domestic natural gas industry chain is gradually improved, and the proportion of natural gas in primary energy consumption is increased year by year. The LNG storage temperature is as low as-162 ℃, and a large amount of cold energy is released in the LNG gasification process, and the cold energy is about 830-860 KJ/kg. At present, in domestic LNG receiving stations, satellite stations and peak shaving stations, heat exchange with seawater, air and the like as heat sources is still adopted in the LNG gasification process, and a large amount of cold energy resources are wasted. The theoretically available cold for 1 ton of LNG through heat exchange gasification is about 230 kWh.
Hydrogen energy is considered to be the most promising alternative to fossil fuels in the future due to its advantages such as high energy density and zero carbon emission, and is always considered as the "ultimate proposal" in the field of mobile energy represented by hydrogen fuel cell vehicles.
For example, CN109163214A discloses a hydrogenation station, which comprises: the system comprises a power supply system and a hydrogen production system, wherein the power supply system is connected with the hydrogen production system, and the hydrogen production system is provided with a first-stage hydrogen storage tank for storing hydrogen; hydrogenation system, hydrogenation system include hydrogenation machine, first to third stage hydrogenation branch road, and the inlet end of first to third stage hydrogenation branch road all links to each other with the gas outlet of first order hydrogen storage tank, and the gas outlet end all links to each other with the air inlet of hydrogenation machine, and first to third stage hydrogenation branch road all can selectively communicate with the air inlet of hydrogenation machine, and satisfy: p1 < P2 < P3, wherein P1, P2 and P3 are the gas pressures at the gas outlet ends of the first-third-stage hydrogenation branches respectively. Through setting up a plurality of hydrogenation branches, can realize multistage filling, can reduce the energy consumption, improve filling efficiency, realize carrying out hydrogen filling more high-efficiently, fast, with low costs, and the hydrogen source of a plurality of hydrogenation branches is to same hydrogen storage tank, entire system's simple structure.
WO2020057073a1 discloses a hydrogen station control system, method and hydrogen station, the system comprising: the system comprises a first compressor (101), a second compressor (102), a first storage tank (201), a detector and a controller, wherein the discharge pressure of the first compressor is less than the storage pressure of the first storage tank, the discharge pressure of the second compressor is greater than or equal to the storage pressure of the first storage tank, the first compressor and the second compressor are connected with the first storage tank, and the detector is used for detecting the pressure of the first storage tank; the controller is configured to: controlling the first compressor to charge and pressurize the first storage tank; and controlling the second compressor to charge and pressurize the first storage tank when the pressure of the first storage tank is equal to a first preset pressure. The system can save the cost of the compressor and reduce the power consumption.
But because hydrogen has a low density, a low liquefaction temperature, and an explosion limit rangeWide range, and the like, and the safe storage becomes the key of hydrogen energy utilization. The storage modes of hydrogen comprise compressed gas hydrogen storage, low-temperature hydrogen storage, liquid hydrogen storage, solid hydrogen storage and the like, the domestic hydrogen station mainly adopts the compressed gas hydrogen storage mode at present, the hydrogen storage pressure is 35MPa, and the volume storage density is about 23kg/m3Compared with liquid hydrogen (volume storage density about 70 kg/m)3) The storage density is low. If the hydrogen storage pressure is further increased to 70MPa, the storage volume density is only 39kg/m3. If liquid hydrogen storage is adopted, the temperature of hydrogen is required to be reduced to 20K, and the conversion of normal hydrogen and parahydrogen and the natural evaporation of liquid hydrogen are also considered, so that a large amount of liquefaction work is required to be consumed.
However, the hydrogen station in the prior art still has the problems of low hydrogen storage density and waste of cold energy in the use of LNG.
SUMMERY OF THE UTILITY MODEL
In view of the problem that exists among the prior art, the utility model aims to provide a comprehensive energy station of hydrogenation can externally provide multiple green energy, mainly includes: the hydrogen storage device comprises natural gas, liquefied natural gas, compressed natural gas, low-temperature compressed hydrogen and normal-temperature high-pressure hydrogen, and meanwhile, the volume storage density of the hydrogen is improved, so that the transportation cost of the hydrogen is reduced, and the problems of liquefied natural gas cold energy waste and low compressed gas hydrogen storage volume storage density are solved.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a power station is synthesized in hydrogenation, power station is synthesized in hydrogenation includes: the system comprises a liquefied natural gas supply unit, a heat exchange unit, a hydrogen supply unit, a natural gas collection unit and a hydrogen transfer unit;
the liquefied natural gas supply unit is connected with a liquid inlet of the heat exchange unit;
the liquid outlet of the heat exchange unit is connected with the natural gas collecting unit;
the gas inlet of the hydrogen supply unit is connected with the gas inlet of the heat exchange unit;
and the gas outlet of the heat exchange unit is connected with the hydrogen transfer unit.
The utility model discloses in, form and hydrogen filling through adopting the heat transfer with the high quality cold energy in the liquefied natural gas combine together, have improved the volume storage density of the hydrogen of filling in-process, have obtained multiple product simultaneously, have solved the extravagant problem with compressed gas hydrogen storage volume storage density is low of liquefied natural gas cold energy.
As a preferred technical solution of the present invention, the liquefied natural gas supply unit includes a liquefied natural gas storage facility and a pressurization facility;
the pressurization equipment is arranged between the natural gas storage equipment and the heat exchange unit or is directly connected with the liquefied natural gas storage equipment for pressurization.
As the utility model discloses preferred technical scheme, the natural gas collecting element is including parallelly connected liquefied natural gas filling equipment and the compressed natural gas collecting device who sets up.
The compressed natural gas collecting device comprises a natural gas compressor and a compressed natural gas filling device which are sequentially connected.
As the utility model discloses preferred technical scheme, the unit is collected to the natural gas can be replaced by the regulating voltage equipment, the gauge and add the control unit that the smelly device is constituteed for city official website provides the natural gas.
As the utility model discloses preferred technical scheme, the natural gas collecting unit still includes natural gas collecting device, and the natural gas that this natural gas collecting device collected obtains the natural gas of gasification for liquefied natural gas after the heat transfer.
As the preferable technical proposal of the utility model, the hydrogen supply unit comprises normal temperature hydrogen supply equipment and/or natural gas hydrogen production equipment;
the hydrogen in the natural gas hydrogen plant is derived from the uncompressed natural gas in the compressed natural gas collection plant.
As the utility model discloses preferred technical scheme, hydrogen supply unit with be provided with the compressor between the heat transfer unit.
As the preferred technical scheme of the utility model, hydrogen forwards 1 kind in unit includes hydrogen filling machine or hydrogen storage device.
As the preferable technical proposal of the utility model, a low-temperature hydrogen storage tank is arranged between the hydrogen filling machine and the heat exchange unit;
and when the hydrogen transferring unit is a hydrogen storage device, the hydrogen transferring unit comprises a low-temperature hydrogen storage tank and a normal-temperature hydrogen storage tank which are respectively connected with the heat exchange unit.
As the utility model discloses preferred technical scheme, heat transfer unit includes plate heat exchanger and/or pipe sled formula heat exchanger.
In the utility model, the hydrogen production equipment can be electrolytic water hydrogen production, natural gas hydrogen production, renewable energy hydrogen production and the like.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
(1) the utility model discloses in, form and hydrogen filling through adopting the heat transfer with the high quality cold energy in the liquefied natural gas combine together, have improved the volume storage density of the hydrogen of filling in-process, have obtained multiple product simultaneously, have solved the extravagant and low problem of compressed gas hydrogen storage volume storage density of liquefied natural gas cold energy, and the temperature of gained hydrogen can be reduced to-160 ℃, and storage density is 25-52kg/cm3。
(2) The cold volume that the LNG gasification produced has make full use of, and cold energy utilization efficiency is high, has increased the product scheme, and make full use of abandonment cold energy is hydrogen storage and filling cooling, improves the storage capacity of hydrogen station and the safety of hydrogen filling, reduces hydrogen station cooling cycle device simultaneously, saves investment cost and area.
Drawings
FIG. 1 is a schematic diagram of a comprehensive hydrogenation energy station provided in embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of a comprehensive hydrogenation energy station provided in embodiment 2 of the present invention;
FIG. 3 is a schematic diagram of a comprehensive energy station for hydrogenation provided in embodiment 3 of the present invention;
in the figure: 1-liquefied natural gas storage equipment, 2-supercharging equipment, 3-heat exchange unit, 4-natural gas compressor, 5-compressor, 6-low-temperature hydrogen storage tank, 7-normal-temperature hydrogen storage tank, 8-control unit, 9-hydrogen filling machine, 10-compressed natural gas filling equipment and 11-natural gas hydrogen production equipment;
101-normal temperature hydrogen, 102-low temperature hydrogen, 103-liquefied natural gas, 104-compressed natural gas, 105-natural gas, 106-urban pipe network, 107-LNG automobile and 108-CNG automobile.
The present invention will be described in further detail below. However, the following examples are only simple examples of the present invention, and do not represent or limit the scope of the present invention, which is defined by the appended claims.
Detailed Description
To better illustrate the present invention, facilitating the understanding of the technical solutions of the present invention, typical but not limiting embodiments of the present invention are as follows:
example 1
The present embodiment provides a hydrogenation integrated energy station, as shown in fig. 1, the hydrogenation integrated energy station includes: a liquefied natural gas supply unit, a heat exchange unit 3, a hydrogen supply unit, a natural gas collection unit and a hydrogen transfer unit;
the liquefied natural gas supply unit is connected with a liquid inlet of the heat exchange unit 3;
the liquid outlet of the heat exchange unit 3 is connected with the natural gas collecting unit;
the air inlet of the hydrogen supply unit is connected with the air inlet of the heat exchange unit 3;
and the gas outlet of the heat exchange unit 3 is connected with the hydrogen transfer unit.
The natural gas supply unit comprises a liquefied natural gas storage facility 1 and a pressurization facility 2;
the pressure boosting device 2 is arranged between the liquefied natural gas storage device 1 and the heat exchange unit 3;
the natural gas collecting unit comprises liquefied natural gas filling equipment and compressed natural gas collecting equipment which are arranged in parallel;
the compressed natural gas collecting device comprises a natural gas compressor 4 and a compressed natural gas filling device 10 which are connected in sequence;
the natural gas collecting unit further comprises natural gas collecting equipment;
the hydrogen supply unit is normal-temperature hydrogen supply equipment;
a compressor 5 is arranged between the hydrogen supply unit and the heat exchange unit 3;
the hydrogen transfer unit is a hydrogen storage device and comprises a low-temperature hydrogen storage tank 6 and a normal-temperature hydrogen storage tank 7 which are respectively connected with the heat exchange unit 3;
the heat exchange unit 3 is a plate heat exchanger.
The obtained hydrogen gas had a temperature of-120 ℃ and a storage density of 37kg/cm3。
Example 2
The present embodiment provides a hydrogenation integrated energy station, as shown in fig. 2, the hydrogenation integrated energy station includes: a liquefied natural gas supply unit, a heat exchange unit 3, a hydrogen supply unit, a natural gas collection unit and a hydrogen transfer unit;
the liquefied natural gas supply unit is connected with a liquid inlet of the heat exchange unit 3;
the liquid outlet of the heat exchange unit 3 is connected with the natural gas collecting unit;
the air inlet of the hydrogen supply unit is connected with the air inlet of the heat exchange unit 3;
and the gas outlet of the heat exchange unit 3 is connected with the hydrogen transfer unit.
The liquefied natural gas supply unit includes a liquefied natural gas storage facility 1 and a pressurization facility 2;
the pressurization device 2 is directly connected with the liquefied natural gas storage device 1 for pressurization.
The natural gas collecting unit is a control unit consisting of a pressure regulating device, a metering device and an odorizing device and provides natural gas for the city official website 106;
the hydrogen supply unit is normal-temperature hydrogen supply equipment;
a compressor 5 is arranged between the hydrogen supply unit and the heat exchange unit 3;
the hydrogen transfer unit is a hydrogen filling machine 9;
the heat exchange unit 3 is a pipe prying type heat exchanger.
The obtained hydrogen gas had a temperature of-160 ℃ and a storage density of 50kg/cm3。
Example 3
The present embodiment provides a hydrogenation integrated energy station, as shown in fig. 3, the hydrogenation integrated energy station includes: a liquefied natural gas supply unit, a heat exchange unit 3, a hydrogen supply unit, a natural gas collection unit and a hydrogen transfer unit;
the liquefied natural gas supply unit is connected with a liquid inlet of the heat exchange unit 3;
the liquid outlet of the heat exchange unit 3 is connected with the natural gas collecting unit;
the air inlet of the hydrogen supply unit is connected with the air inlet of the heat exchange unit 3;
and the gas outlet of the heat exchange unit 3 is connected with the hydrogen transfer unit.
The liquefied natural gas supply unit includes a liquefied natural gas storage facility 1 and a pressurization facility 2;
the pressure boosting device 2 is arranged between the liquefied natural gas storage device 1 and the heat exchange unit 3;
the natural gas collecting unit comprises liquefied natural gas filling equipment and compressed natural gas collecting equipment which are arranged in parallel;
the compressed natural gas collecting device comprises a natural gas compressor 4 and a compressed natural gas filling device 10 which are connected in sequence;
the hydrogen supply unit is natural gas hydrogen production equipment 11;
the hydrogen in the natural gas hydrogen plant 11 is derived from the uncompressed natural gas in the compressed natural gas collection plant;
a compressor 5 is arranged between the hydrogen supply unit and the heat exchange unit 3;
the hydrogen transfer unit is a hydrogen filling machine 9;
a low-temperature hydrogen storage tank 6 is arranged between the hydrogen filling machine 9 and the heat exchange unit 3;
the heat exchange unit 3 comprises a pry type heat exchanger of a plate type heat exchanger pipe.
The obtained hydrogen gas had a temperature of-90 deg.C and a storage density of 28kg/cm3。
The utility model discloses in, form and hydrogen filling through adopting the heat transfer with the high quality cold energy in the liquefied natural gas combine together, have improved the volume storage density of the hydrogen of filling in-process, have obtained multiple product simultaneously, have solved the extravagant problem with compressed gas hydrogen storage volume storage density is low of liquefied natural gas cold energy.
The applicant states that the present invention is described by the above embodiments, but the present invention is not limited to the above detailed structural features, i.e. the present invention can be implemented only by relying on the above detailed structural features. It should be clear to those skilled in the art that any modifications to the present invention, to the equivalent replacement of selected parts and the addition of auxiliary parts, the selection of specific modes, etc., all fall within the scope of protection and disclosure of the present invention.
The above detailed description describes the preferred embodiments of the present invention, but the present invention is not limited to the details of the above embodiments, and the technical idea of the present invention can be within the scope of the present invention, and can be right to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims (10)

1. A hydro aggregate energy station, comprising: the system comprises a liquefied natural gas supply unit, a heat exchange unit, a hydrogen supply unit, a natural gas collection unit and a hydrogen transfer unit;
the liquefied natural gas supply unit is connected with a liquid inlet of the heat exchange unit;
the liquid outlet of the heat exchange unit is connected with the liquefied natural gas collecting unit;
the gas inlet of the hydrogen supply unit is connected with the gas inlet of the heat exchange unit;
and the gas outlet of the heat exchange unit is connected with the hydrogen transfer unit.
2. The hydro-integrated energy station of claim 1, wherein the lng supply unit comprises an lng storage facility and a booster facility;
the pressurization equipment is arranged between the liquefied natural gas storage equipment and the heat exchange unit or is directly connected with the liquefied natural gas storage equipment for pressurization.
3. The hydro-hybrid energy station of claim 1 or 2, wherein the natural gas collection unit comprises a liquefied natural gas filling facility and a compressed natural gas collection facility arranged in parallel;
the compressed natural gas collecting device comprises a natural gas compressor and a compressed natural gas filling device which are sequentially connected.
4. The integrated hydrogenation energy station as claimed in claim 3, wherein the natural gas collection unit is replaced by a control unit consisting of pressure regulating equipment, a meter and an odorizing device to provide natural gas for city official networks.
5. The hydro-hybrid energy station of claim 3, wherein the natural gas collection unit further comprises a natural gas collection device.
6. The hydro-hybrid energy station of claim 3, wherein the hydrogen supply unit comprises an ambient hydrogen supply and/or a natural gas hydrogen plant;
the hydrogen in the natural gas hydrogen plant is derived from the uncompressed natural gas in the compressed natural gas collection plant.
7. The hydro-hybrid energy station of claim 1 or 6, wherein a compressor is disposed between the hydrogen supply unit and the heat exchange unit.
8. The hydro-hybrid power station of claim 7, wherein the hydrogen transfer unit comprises 1 of a hydrogen filling machine or a hydrogen storage device.
9. The integrated hydrogenation energy station as claimed in claim 8, wherein a low-temperature hydrogen storage tank is arranged between the hydrogen filling machine and the heat exchange unit;
and when the hydrogen transferring unit is a hydrogen storage device, the hydrogen transferring unit comprises a low-temperature hydrogen storage tank and a normal-temperature hydrogen storage tank which are respectively connected with the heat exchange unit.
10. The hydro-hybrid energy station of claim 1, wherein the heat exchange unit comprises a plate heat exchanger and/or a tube skid heat exchanger.
CN202023017982.5U 2020-12-15 2020-12-15 Hydrogenation comprehensive energy station Active CN214840081U (en)

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Application Number Priority Date Filing Date Title
CN202023017982.5U CN214840081U (en) 2020-12-15 2020-12-15 Hydrogenation comprehensive energy station

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