CN108361546B - Hydrogenation system of skid-mounted hydrogenation equipment of hydrogen compressor and hydrogenation method thereof - Google Patents
Hydrogenation system of skid-mounted hydrogenation equipment of hydrogen compressor and hydrogenation method thereof Download PDFInfo
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- CN108361546B CN108361546B CN201810027757.8A CN201810027757A CN108361546B CN 108361546 B CN108361546 B CN 108361546B CN 201810027757 A CN201810027757 A CN 201810027757A CN 108361546 B CN108361546 B CN 108361546B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/056—Small (<1 m3)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
- F17C2225/0107—Single phase
- F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/01—Propulsion of the fluid
- F17C2227/0128—Propulsion of the fluid with pumps or compressors
- F17C2227/0157—Compressors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0337—Heat exchange with the fluid by cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0367—Localisation of heat exchange
- F17C2227/0388—Localisation of heat exchange separate
- F17C2227/039—Localisation of heat exchange separate on the pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/043—Pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/06—Fluid distribution
- F17C2265/063—Fluid distribution for supply of refueling stations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0184—Fuel cells
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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
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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
- 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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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides a hydrogenation system and a hydrogenation method of a skid-mounted hydrogenation device of a hydrogen press, wherein the hydrogenation system comprises the following components arranged in a skid-mounted shell: the air inlet of the diaphragm compressor in the pressurizing assembly is connected with a hydrogen inlet pipe, the end part of the hydrogen inlet pipe is provided with an input end connected with an air unloading port of the hydrogen transport vehicle, the air outlet of the diaphragm compressor is connected with a hydrogen outlet pipe, and the hydrogen outlet pipe is cooled by flowing through a first cooling heat exchange piece; the air inlet pipeline of the hydrogenation machine is connected with the hydrogen outlet pipe, and the air inlet pipeline flows through the second cooling heat exchange piece for cooling; one end of the circulating pipeline is communicated with the hydrogen inlet pipe, and the other end of the circulating pipeline is communicated with the hydrogen outlet pipe; and the first control valve, the second control valve and the third control valve are connected with the controller. The whole hydrogenation system has compact structural arrangement, small occupied area and large hydrogenation capacity.
Description
Technical Field
The invention relates to the technical field of hydrogenation stations, in particular to a hydrogenation system of a skid-mounted hydrogenation device of a hydrogen compressor and a hydrogenation method thereof.
Background
The hydrogen fuel cell automobile technology becomes the most ideal technology in the century and most likely to replace the traditional automobile power system because of the advantages of high efficiency, zero emission and the like. The development of fuel cell automobile technology can thoroughly solve the energy and environmental problems caused by the development of vehicles at the same time, and truly realize the sustainable development of the automobile industry, so that great importance is placed on governments and enterprises in all countries of the world, particularly the development and demonstration of fuel cell automobiles are increased and great progress is made in the United states, japan and Germany and enterprises thereof, and the fuel cell automobiles are expected to formally enter the market in the coming 5 to 10 years. Fuel cell automobiles use hydrogen as fuel, which is provided with hydrogen filling service mainly through a hydrogen filling station. With the rapid development of fuel cell vehicles, the demand for large-scale hydrogen infrastructure is also increasing, and the public beliefs of an energy company and government agencies are jointly signed by the multiple vehicle enterprises of the Ministry, damller, ford, general Eurobotics, honda, modern, reynolds, japanese and Toyota, etc., which point to the fact that a significant number of fuel cell vehicles are introduced into the market in recent years, and thus the construction of hydrogen infrastructure is highly demanded, especially in the important markets of Germany, the United states, japan and Korea, etc.
The hydrogen energy is incorporated into the national energy strategy, and becomes a strategic choice for optimizing the energy consumption structure and guaranteeing the national energy supply safety in China. The development and industrialization of the basic equipment of the hydrogen energy industry are the precondition for developing hydrogen energy, and the hydrogen energy capacity scale of 720 hundred million meters of China in the form of energy source can be achieved by 2020 according to the roadmap planning of the blue book (2016) of the infrastructure of the hydrogen energy industry in China 3 The method comprises the steps of carrying out a first treatment on the surface of the The number of the hydrogenation stations reaches 100; hydrogen fuel cell vehicles reach 1 ten thousand; the hydrogen energy rail transit vehicles reach 50 rows; the total industry yield reaches 3000 hundred million yuan.
At present, the related technology and engineering application of the 35MPa hydrogenation station are gradually promoted in China, the process and equipment are gradually mature, the standards and specifications are gradually improved, and the operation is safe, stable and reliable. Key equipment of 35MPa hydrogen stations, such as diaphragm hydrogen compressors, high-pressure hydrogen storage bottle sets, hydrogen machines, etc., have begun to be designed and produced in a stepwise home-made manner.
At present, land resources in an urban built-up area are limited, and skid-mounted hydrogenation equipment with small occupied area is needed.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention aims to provide a hydrogenation system and a hydrogenation method for a skid-mounted hydrogenation device of a hydrogenation press, which are used for solving the problems of large occupied area of a hydrogenation station and difficult flexible hydrogenation in the prior art.
To achieve the above and other related objects, the present invention provides a hydrogenation system of a skid-mounted hydrogenation apparatus of a hydrogen press, comprising the following components disposed in a skid-mounted housing:
the supercharging assembly comprises a diaphragm compressor and a driving assembly for driving the diaphragm compressor to act, a hydrogen inlet pipe is connected with an air inlet of the diaphragm compressor, an input end connected with a gas discharging port of the hydrogen transport vehicle is arranged at the end part of the hydrogen inlet pipe, an air outlet of the diaphragm compressor is connected with a hydrogen outlet pipe, and the hydrogen outlet pipe is cooled by flowing through a first cooling heat exchange piece;
the air inlet pipeline of the hydrogenation machine is connected with the hydrogen outlet pipe, and the air inlet pipeline flows through the second cooling heat exchange piece for cooling;
one end of the circulating pipeline is communicated with the hydrogen inlet pipe, and the other end of the circulating pipeline is communicated with the hydrogen outlet pipe;
and the hydrogen inlet pipe, the hydrogen outlet pipe and the circulating pipeline are respectively provided with a first control valve, a second control valve and a third control valve for controlling the on-off of the pipeline, and the first control valve, the second control valve and the third control valve are connected with the controller.
Preferably, the first cooling heat exchange member is a cooling coil connected to a first cooling unit disposed proximate the plenum assembly and controlled by the controller.
Preferably, the oil inlet pipeline of the diaphragm compressor is subjected to heat exchange and temperature reduction through a third cooling heat exchange piece, and the third cooling heat exchange piece is connected with the first cooling unit.
Preferably, the second cooling heat exchange piece is a circulating cooling pipe, and an inlet and an outlet of the circulating cooling pipe are respectively provided with an end part connected with a second cooling unit arranged outside the skid-mounted shell.
Preferably, the hydrogen storage device further comprises a hydrogen storage bottle group fixedly arranged outside the skid-mounted shell, an air inlet pipe of the hydrogen storage bottle group is communicated with the hydrogen outlet pipe, and an air inlet pipe of the hydrogen storage bottle group is provided with a switch valve for controlling on-off of a pipeline.
Preferably, the system further comprises a nitrogen purging system, the nitrogen purging system comprises a nitrogen storage tank and a nitrogen purging pipe, one end of the nitrogen purging pipe is connected with the nitrogen storage tank, the other end of the nitrogen purging pipe is communicated with the hydrogen inlet pipe, and the hydrogen outlet pipe is communicated with the emptying pipe.
The invention also provides a hydrogenation method in the hydraulic press skid-mounted equipment, wherein the hydrogenation method adopts the hydrogenation system of the hydraulic press skid-mounted hydrogenation equipment, and the hydrogenation method comprises the following steps: the gas discharging port of the hydrogen transport vehicle is communicated with the hydrogen inlet pipe, when the fuel cell vehicle is hydrogenated, the controller controls the driving assembly to drive the diaphragm compressor to operate, the third control valve is in a state of disconnecting the circulating pipeline, the first control valve and the second control valve enable the hydrogen inlet pipe and the hydrogen outlet pipe to be in an open state respectively, the diaphragm compressor directly pressurizes and fills the fuel cell vehicle through the hydrogenation machine, and when the controller detects that the pressure of the gas outlet pipeline of the hydrogenation machine reaches a set value, the hydrogenation is finished.
Preferably, when the skid-mounted shell is externally and fixedly provided with the hydrogen storage bottle group, the air inlet pipe of the hydrogen storage bottle group is communicated with the hydrogen outlet pipe, the air inlet pipe of the hydrogen storage bottle group is provided with a switch valve for controlling the on-off of a pipeline, the air discharging port of the hydrogen transport vehicle is communicated with the hydrogen inlet pipe, the air inlet pipe of the hydrogen storage bottle group is in an on state through the switch valve, the controller controls the driving assembly to drive the diaphragm compressor to operate, the third control valve is in an off state of the circulating pipeline, the first control valve and the second control valve respectively enable the hydrogen inlet pipe and the hydrogen outlet pipe to be in an on state, the diaphragm compressor starts pressurizing and charging hydrogen to the hydrogen storage bottle group until the pressure in the hydrogen storage bottle group reaches a set value, and the charging is ended.
Preferably, when the hydrogen storage bottle group is charged with hydrogen or the fuel cell vehicle is hydrogenated, the controller controls the third control valve to act to open the circulating pipeline, and hydrogen enters the circulating pipeline for internal circulation after being pressurized by the diaphragm compressor.
Preferably, after internal circulation for a period of time, the controller controls the driving assembly to drive the diaphragm compressor to stop, and simultaneously controls the first control valve and the second control valve to respectively disconnect the hydrogen inlet pipe and the hydrogen outlet pipe; and controlling the closing state of the third control valve, the opening states of the fourth control valve and the fifth control valve, and exhausting the hydrogen in the hydrogen compressor.
As described above, the hydrogenation system and the hydrogenation method of the skid-mounted hydrogenation equipment of the hydrogen press have the following beneficial effects: the diaphragm compressor has strong hydrogenation pressurizing capacity, so as to enhance the pressurizing capacity and realize better hydrogen charging for the fuel cell vehicle; the whole hydrogenation system has compact structural arrangement, small occupied area and large hydrogenation capacity, and can adopt continuous graded filling with daily filling amount of 500kg/12 hours; when the hydrogen storage bottle group is arranged outside, the hydrogen storage capacity is high.
Drawings
Fig. 1 shows a schematic flow diagram of the pipeline of the hydrogenation system of the skid-mounted hydrogenation device of the hydrogen press.
Fig. 2 shows a perspective view of a hydrogenation system of the present invention for a hydrogen press skid.
Description of element reference numerals
1. Third control valve
2. First control valve
3. Fourth control valve
4. Fifth control valve
5. Second control valve
6. 7, 8 pipeline valve
100. Skid-mounted shell
201. Diaphragm compressor
202. First cooling heat exchange piece
203. Driving motor
204. First cooling unit
205. Driving belt wheel
301. Hydrogen straight-through pipe
302. Hydrogen gas inlet pipe
303. Hydrogen outlet pipe
304. Circulation pipeline
305. Nitrogen purging pipe
306. Emptying pipe
401. Second cooling heat exchange piece
402. Hydrogenation machine
403. Inlet pipe of second cooling heat exchange piece
404. Outlet pipe of second cooling heat exchange piece
405. Second cooling unit
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
Please refer to fig. 1-2. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the invention, which is defined by the appended claims, but rather by the claims, unless otherwise indicated, and unless otherwise indicated, all changes in structure, proportions, or otherwise, used by those skilled in the art, are included in the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
As shown in fig. 1 and 2, the present invention provides a hydrogenation system of a hydrogen press skid-mounted hydrogenation apparatus, which comprises the following components disposed in a skid-mounted housing 100:
the supercharging assembly comprises a diaphragm compressor 201 and a driving assembly for driving the diaphragm compressor to act, wherein a hydrogen inlet pipe 302 is connected with an air inlet of the diaphragm compressor 201, an input end connected with an air discharging port of a hydrogen transport vehicle is arranged at the end part of the hydrogen inlet pipe 302, an air outlet of the diaphragm compressor 201 is connected with a hydrogen outlet pipe 303, and the hydrogen outlet pipe 303 is cooled by flowing through a first cooling heat exchange piece 202;
the hydrogenation machine 402, the air inlet pipeline of the hydrogenation machine 402 is connected with the hydrogen outlet pipe 303, and the air inlet pipeline of the hydrogenation machine 402 flows through the second cooling heat exchange piece 401 for cooling;
a circulation pipeline 304, wherein one end of the circulation pipeline 304 is communicated with the hydrogen inlet pipe 302, and the other end of the circulation pipeline 304 is communicated with the hydrogen outlet pipe 303;
the controller, the hydrogen inlet pipe 302, the hydrogen outlet pipe 303 and the circulation pipeline 304 are respectively provided with a first control valve 2, a second control valve 5 and a third control valve 1 for controlling the on-off of the pipelines, and the first control valve 2, the second control valve 5 and the third control valve 1 are connected with the controller.
In the invention, the diaphragm compressor 201 is adopted to boost the pressure of the hydrogen, so that the boosted hydrogen can be normally used, the hydrogen outlet pipe 303 is cooled by the first cooling heat exchange piece 202, the cooled hydrogen can be stored or directly sent to the hydrogenation machine, if the hydrogen is sent to the hydrogenation machine, the hydrogen which is used for charging the hydrogen of the fuel cell vehicle and is sent to the hydrogenation machine is cooled by the second cooling heat exchange piece 401, and finally the hydrogen charging of the fuel cell vehicle is realized; the whole hydrogenation system has compact structural arrangement, small occupied area and large hydrogenation capacity, and can adopt continuous graded filling with daily filling amount of 500kg/12 hours; when the hydrogen storage bottle group is arranged outside, the hydrogen storage capacity is high.
As shown in fig. 2, the driving assembly in this embodiment includes a driving motor 203 and a driving pulley 205 connected to the driving motor 203, where the driving pulley 205 is connected to the diaphragm compressor 201, and the diaphragm compressor 201 is operated under the driving of the driving motor 203. The diaphragm compressor 201 is a reciprocating positive displacement compressor, the working principle of the transmission part of the diaphragm compressor is similar to that of a piston compressor, a connecting rod is driven to swing through rotation of a crankshaft to form reciprocating motion of a piston, oil pressure in a closed oil cylinder is lifted, and a diaphragm is pushed to form periodical pressurization through the oil pressure. The oil cavity and the gas cavity are completely isolated by the metal diaphragm, so that the gas cannot be polluted by lubricating oil of the moving part in the pressurizing process.
In this embodiment, the first cooling heat exchanging element 202 is a cooling coil connected to the first cooling unit 204, and the first cooling unit 204 is disposed adjacent to the supercharging assembly and is controlled by the controller. In order to ensure the normal operation of the diaphragm compressor, in this embodiment, the oil inlet pipeline of the diaphragm compressor 201 exchanges heat and cools down through the third cooling heat exchange member, and the third cooling heat exchange member is connected to the first cooling unit 204.
The present invention includes two parts of cooling, one part is the cooling generated by the first cooling unit 204, and the cooling is performed on the hydrogen in the hydrogen outlet pipe on one side, so that the hydrogen compressed by the diaphragm compressor meets the requirement after being cooled; on the other hand, the lubricating oil of the diaphragm compressor is cooled, and in order to improve the efficiency of the diaphragm compressor, the normal operation of the diaphragm compressor can be ensured only if the temperature of the lubricating oil cannot exceed a certain temperature. In order to meet the hydrogenation temperature requirement of the fuel cell vehicle, the second cooling heat exchange member 401 is provided, in this embodiment, the second cooling heat exchange member 401 is a circulating cooling pipe, as shown in fig. 1 and 2, and the inlet pipe 403 and the outlet pipe 404 of the second cooling heat exchange member 401 each have an end connected to the second cooling unit 405 disposed outside the skid-mounted housing 100.
In order to better realize hydrogen storage and hydrogenation, this embodiment further includes a hydrogen storage bottle group (not shown) fixedly disposed outside the skid-mounted housing 100, an air inlet pipe of the hydrogen storage bottle group is communicated with the hydrogen outlet pipe 303, and an air inlet pipe of the hydrogen storage bottle group is provided with a switch valve for controlling on-off of a pipeline. In this embodiment, the switch valve is a manual valve, which can manually open or close the air inlet pipe of the hydrogen storage bottle set as required, and the air outlet pipe of the hydrogen storage bottle set is connected with the hydrogenation machine through the hydrogen outlet pipe 303, so that the hydrogen storage bottle set can directly string hydrogen for the fuel cell vehicle. In order to store hydrogen with high efficiency, in this embodiment, the hydrogen storage bottle group contains six hydrogen storage bottle groups, and the six hydrogen storage bottle groups form three groups of high pressure, medium pressure and low pressure according to the ratio of 1:2:3, and the hydrogen charging is controlled according to the three-stage sequence of high pressure, medium pressure and low pressure respectively until the pressure of each stage of hydrogen storage bottle reaches 45MPa. Therefore, the hydrogen fuel cell vehicle can be filled in a grading manner, the hydrogenation efficiency is improved, the air filling time is shortened, and the safety and the reliability are realized.
To ensure the delivery of hydrogen, this embodiment further includes a nitrogen purge system, which includes a nitrogen storage tank (not shown) and a nitrogen purge pipe 305, one end of the nitrogen purge pipe 305 is connected to the nitrogen storage tank, the other end of the nitrogen purge pipe 305 is connected to the hydrogen inlet pipe 302, and the hydrogen outlet pipe is connected to the evacuation pipe 306. In this embodiment, a nitrogen purging system is provided, and nitrogen purging is required to be performed on the pipeline of the diaphragm compressor 201 after the diaphragm compressor 201 is started for the first time or parts are replaced. In this embodiment, in order to facilitate evacuation of the pipeline after the diaphragm compressor 201 performs work, an evacuation branch pipe is further connected to the outlet of the diaphragm compressor 201, the evacuation branch pipe is provided with a fifth control valve 4, and a fourth control valve 3 is further provided on the pipeline between the evacuation branch pipe and the first control valve. The nitrogen purging pipe 305 and the emptying pipe 306 are also provided with a plurality of pipeline valves 6, 7 and 8, and when the nitrogen purging pipe needs to be emptied, the pipeline valves are opened, so that the nitrogen purging and the emptying can be realized. When the nitrogen purge is performed for the first time, the respective pipeline valves 6, 7, 8 are adjusted to open the nitrogen purge pipe 305 and the evacuation pipe 306, and the hydrogen inlet pipe 302, the hydrogen outlet pipe 302, and the circulation pipeline 304 are also opened, and even if the first control valve 2, the second control valve 5, and the third control valve 1 are opened, the pipeline valves 6, 7 are adjusted to close the nitrogen purge pipe 305 and the evacuation pipe 306 after the nitrogen purge is completed.
The invention also provides a hydrogenation method in the skid-mounted equipment of the hydrogen press, wherein the hydrogenation method adopts the hydrogenation system of the skid-mounted hydrogenation equipment of the hydrogen press, and before the diaphragm compressor is started in the embodiment, each pipeline is checked to check whether the nitrogen purging pipe 305 and the emptying pipe 306 are closed or not, and whether the hydrogen inlet pipe and the hydrogen outlet pipe are opened or not. After the first cooling unit 204 is ready, a start button is pressed, the first cooling unit 204 is started, interlocking signals of all control valves are monitored during the start period, the diaphragm compressor 201 is started after a water pump of the first cooling unit 204 is started for 1 minute, a T2-T3 counter in a control system starts to time, the diaphragm compressor 201 starts to circulate, and the oil pressure of the compressor starts to be detected after 30 seconds. After the internal circulation of the diaphragm compressor 201 is finished, the first control valve 2, the second control valve 5 and the third control valve 1 are in a pipeline conducting state, the fourth control valve 3 and the fourth control valve are in a pipeline closing state, hydrogen enters the diaphragm compressor 201, a T1 counter in a control system starts to count time, low-pressure detection is started to an inlet of the diaphragm compressor after 30 seconds, after the counting time of the T1 counter is finished, if the control system detects a supercharging signal in a hydrogenation station, the third control valve 1 is adjusted to enable the circulation pipeline 304 to be in a closing state, and the diaphragm compressor is in a subsequent equipment charging supercharging state.
The hydrogenation method comprises the following steps:
a direct hydrogenation of fuel cell vehicles: the gas discharging port of the hydrogen transportation vehicle is communicated with the hydrogen inlet pipe 302, when the fuel cell vehicle is hydrogenated, the controller controls the driving assembly to drive the diaphragm compressor 201 to operate, the third control valve 1 is in a state of disconnecting the circulating pipeline 304, the first control valve 2 and the second control valve 5 respectively enable the hydrogen inlet pipe 302 and the hydrogen outlet pipe 303 to be in an open state, the diaphragm compressor 201 compresses hydrogen for pressurization, the pressurized hydrogen is cooled by the first cooling heat exchange piece 202 and then directly pressurized and filled into the fuel cell vehicle through the second cooling heat exchange piece 401 by the hydrogenation machine 402, and when the controller detects that the pressure of an air outlet pipeline of the hydrogenation machine 402 reaches a set value, the hydrogenation is finished.
Secondly, hydrogen is stored in a hydrogen storage bottle group: when the skid-mounted shell 100 is fixedly provided with a hydrogen storage bottle group, an air inlet pipe of the hydrogen storage bottle group is communicated with the hydrogen outlet pipe 303, an on-off valve for controlling the on-off of a pipeline is arranged on the air inlet pipe of the hydrogen storage bottle group, an air discharging port of a hydrogen transportation vehicle is communicated with the hydrogen inlet pipe 302, the air inlet pipe of the hydrogen storage bottle group is in an on state through the on-off valve, a controller controls the driving assembly to drive the diaphragm compressor 201 to operate, the third control valve 1 is in an off state of the circulating pipeline 304, the first control valve 2 and the second control valve 5 respectively enable the hydrogen inlet pipe 302 and the hydrogen outlet pipe 303 to be in an on state, the diaphragm compressor 201 starts pressurizing and charging the hydrogen storage bottle group until the pressure in the hydrogen storage bottle group reaches a set value, and the charging is ended.
In order to ensure the safety of hydrogenation when the whole system is normally operated during hydrogenation, in this embodiment, when the hydrogen storage bottle group is charged with hydrogen or the fuel cell vehicle is hydrogenated, the controller controls the third control valve 1 to act to open the circulation pipeline 304, and hydrogen enters the circulation pipeline 304 for internal circulation after being pressurized by the diaphragm compressor 201. After the internal circulation is performed for a period of time, the stop button is pressed, and the controller controls the driving assembly to drive the diaphragm compressor 201 to stop, and simultaneously controls the first control valve 2 and the second control valve 5 to respectively disconnect the hydrogen inlet pipe 302 and the hydrogen outlet pipe 303. The embodiment further comprises a vent pipeline for venting the pipeline of the diaphragm compressor, the vent pipeline is provided with the fourth control valve 3 and the fifth control valve 5, the fourth control valve 3 and the fifth control valve 5 are normally closed control valves in the embodiment, the controller also controls the fourth control valve 3 and the fifth control valve 5 to be opened at the moment, and when the outlet pressure of the diaphragm compressor is lower than 20MPa, pipeline gas between the first control valve 2 and the second control valve 5 is vented.
In order to improve the hydrogenation efficiency, the embodiment further comprises a hydrogen straight-through pipe 301 directly connected with the hydrogen transport vehicle and the hydrogenation machine, when the diaphragm compressor is in fault and the fuel cell vehicle is used for hydrogenation, the hydrogen straight-through pipe 301 can be directly opened to hydrogenate the fuel cell vehicle by the hydrogenation machine.
In summary, the hydrogenation system and the hydrogenation method of the skid-mounted hydrogenation equipment of the hydrogen press have compact structural arrangement of the whole hydrogenation system, small occupied area and large hydrogenation capacity, and can adopt continuous graded filling with daily filling amount of 500kg/12 hours; when the hydrogen storage bottle group is arranged outside, the hydrogen storage capacity is large, and the total hydrogen storage capacity is about 920kg. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (6)
1. A hydrogenation method in a hydraulic press skid-mounted device is characterized by comprising the following steps of: the hydrogenation method adopts a hydrogenation system of a skid-mounted hydrogenation device of a hydrogen press, and the hydrogenation system comprises the following components arranged in a skid-mounted shell:
the supercharging assembly comprises a diaphragm compressor and a driving assembly for driving the diaphragm compressor to act, a hydrogen inlet pipe is connected with an air inlet of the diaphragm compressor, an input end connected with a gas discharging port of the hydrogen transport vehicle is arranged at the end part of the hydrogen inlet pipe, an air outlet of the diaphragm compressor is connected with a hydrogen outlet pipe, and the hydrogen outlet pipe is cooled by flowing through a first cooling heat exchange piece;
the air inlet pipeline of the hydrogenation machine is connected with the hydrogen outlet pipe, and the air inlet pipeline flows through the second cooling heat exchange piece for cooling;
one end of the circulating pipeline is communicated with the hydrogen inlet pipe, and the other end of the circulating pipeline is communicated with the hydrogen outlet pipe;
the hydrogen inlet pipe, the hydrogen outlet pipe and the circulating pipeline are respectively provided with a first control valve, a second control valve and a third control valve for controlling the on-off of the pipeline, and the first control valve, the second control valve and the third control valve are connected with the controller;
the hydrogenation method comprises the following steps:
the gas discharging port of the hydrogen transport vehicle is communicated with the hydrogen inlet pipe, when the fuel cell vehicle is used for hydrogenation, the controller controls the driving assembly to drive the diaphragm compressor to operate, the third control valve is in a state of disconnecting the circulating pipeline, the first control valve and the second control valve respectively enable the hydrogen inlet pipe and the hydrogen outlet pipe to be in an open state, the diaphragm compressor directly pressurizes and fills the fuel cell vehicle through the hydrogenation machine, and when the controller detects that the pressure of the gas outlet pipeline of the hydrogenation machine reaches a set value, the hydrogenation is finished;
when the skid-mounted shell is externally provided with a fixed hydrogen storage bottle group, an air inlet pipe of the hydrogen storage bottle group is communicated with the hydrogen outlet pipe, an air inlet pipe of the hydrogen storage bottle group is provided with a switch valve for controlling the on-off of a pipeline, an air discharging port of a hydrogen transport vehicle is communicated with the hydrogen inlet pipe, the air inlet pipe of the hydrogen storage bottle group is in an on state through the switch valve, the controller controls the driving assembly to drive the diaphragm compressor to operate, the third control valve is in an off state of the circulating pipeline, the first control valve and the second control valve respectively enable the hydrogen inlet pipe and the hydrogen outlet pipe to be in an on state, the diaphragm compressor starts pressurizing and charging hydrogen to the hydrogen storage bottle group until the pressure in the hydrogen storage bottle group reaches a set value, and the hydrogen charging is ended;
when the hydrogen storage bottle group is charged with hydrogen or the fuel cell vehicle is hydrogenated, the controller controls the third control valve to act to open the circulating pipeline, and hydrogen enters the circulating pipeline for internal circulation after being pressurized by the diaphragm compressor.
2. The method for hydrogenation in a hydrogen press skid as set forth in claim 1, wherein: after the internal circulation is performed for a period of time, the controller controls the driving assembly to drive the diaphragm compressor to stop, and simultaneously controls the first control valve and the second control valve to enable the hydrogen inlet pipe and the hydrogen outlet pipe to be in a disconnected state respectively.
3. The method for hydrogenation in a hydrogen press skid as set forth in claim 1, wherein: the first cooling heat exchange piece is a cooling coil connected with a first cooling unit, and the first cooling unit is arranged close to the supercharging assembly and is controlled by the controller.
4. The method for hydrogenation in a hydrogen press skid as set forth in claim 3, wherein: and an oil inlet pipeline of the diaphragm compressor is subjected to heat exchange and temperature reduction through a third cooling heat exchange piece, and the third cooling heat exchange piece is connected with the first cooling unit.
5. The method for hydrogenation in a hydrogen press skid as set forth in claim 1, wherein: the second cooling heat exchange piece is a circulating cooling pipe, and an inlet and an outlet of the circulating cooling pipe are respectively provided with an end part connected with a second cooling unit arranged outside the skid-mounted shell.
6. The method for hydrogenation in a hydrogen press skid as set forth in claim 1, wherein: the nitrogen purging system comprises a nitrogen storage tank and a nitrogen purging pipe, one end of the nitrogen purging pipe is connected with the nitrogen storage tank, the other end of the nitrogen purging pipe is communicated with the hydrogen inlet pipe, and the hydrogen outlet pipe is communicated with the emptying pipe.
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Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163214B (en) * | 2018-08-15 | 2024-01-05 | 国家电投集团氢能科技发展有限公司 | Hydrogenation station |
| CN110566807B (en) * | 2019-09-30 | 2024-04-26 | 长江勘测规划设计研究有限责任公司 | Hydropower station construction support hole hydrogen storage system and hydrogen storage method |
| CN110736025A (en) * | 2019-10-31 | 2020-01-31 | 海德利森(天津)检测设备有限公司 | simple hydrogenation device |
| CN112923234B (en) * | 2019-12-05 | 2023-05-26 | 中国石油化工股份有限公司 | Gas supply system and gas supply method and hydrogen adding station |
| CN111473249A (en) * | 2020-05-26 | 2020-07-31 | 广东国联氢能技术有限公司 | Hydrogenation system and hydrogenation control method |
| CN111473248A (en) * | 2020-05-26 | 2020-07-31 | 广东国联氢能技术有限公司 | Hydrogenation station for social vehicles and trams |
| CN112413399A (en) * | 2020-11-20 | 2021-02-26 | 四川金星清洁能源装备股份有限公司 | Gas pressurization system for diaphragm compressor |
| CN112879797A (en) * | 2021-03-03 | 2021-06-01 | 北京伯肯节能科技股份有限公司 | Skid-mounted formula hydrogenation station of low noise |
| CN112594552A (en) * | 2021-03-03 | 2021-04-02 | 河南氢枫能源技术有限公司 | Hydrogen utilization system and method for hydrogen storage cylinder set of hydrogen filling station |
| CN115127013A (en) * | 2021-03-25 | 2022-09-30 | 上海氢枫能源技术有限公司 | Skid-mounted type pressurization hydrogenation station system and hydrogenation method thereof |
| CN113203045A (en) * | 2021-04-09 | 2021-08-03 | 上海氢枫能源技术有限公司 | System and method for automatically purging and replacing pipeline gas |
| CN113339245B (en) * | 2021-06-22 | 2023-01-03 | 西安交通大学 | Diaphragm compressor single-stage and double-stage switching control system and method |
| CN113606495B (en) * | 2021-08-05 | 2023-08-04 | 上海氢枫能源技术有限公司 | Modular intelligent valve system |
| CN113606499B (en) * | 2021-08-13 | 2023-05-05 | 上海氢枫能源技术有限公司 | Water chilling unit suitable for hydrogen adding station and application method thereof |
| CN113915525B (en) * | 2021-10-29 | 2022-08-23 | 江苏氢枫能源装备有限公司 | Solid hydrogen-storing hydrogen adsorbing and releasing device |
| CN114198632B (en) * | 2021-12-02 | 2023-07-25 | 武汉氢能与燃料电池产业技术研究院有限公司 | Marine fuel cell system hydrogenation device based on alloy storage technology |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418907B (en) * | 2008-11-11 | 2011-12-07 | 同济大学 | High-pressure hydrogen supply system for exterior hydrogen feeding hydrogenation stations |
| JP2011074925A (en) * | 2009-09-29 | 2011-04-14 | Taiyo Nippon Sanso Corp | Method and device for filling hydrogen gas |
| CN106030186B (en) * | 2014-02-21 | 2019-04-30 | 株式会社神户制钢所 | Gas supply system and hydrogenation stations |
| CN204213621U (en) * | 2014-10-27 | 2015-03-18 | 中汽迈赫（天津）工程设计研究院有限公司 | High-purity gas supercharging bulking system |
| CN204984818U (en) * | 2015-06-08 | 2016-01-20 | 江苏恒久机械股份有限公司 | Diaphragm compressor flow automatic regulating apparatus |
| CN107061988A (en) * | 2017-01-17 | 2017-08-18 | 张家港富瑞氢能装备有限公司 | Skid supercharging, hydrogenation plant and skid hydrogenation stations |
| CN107559582A (en) * | 2017-10-18 | 2018-01-09 | 浙江海天气体有限公司 | Integral type hydrogenation plant |
| CN207716086U (en) * | 2018-01-11 | 2018-08-10 | 上海氢枫能源技术有限公司 | The hydrogenation system of hydrogen compressor skid hydrogenation plant |
-
2018
- 2018-01-11 CN CN201810027757.8A patent/CN108361546B/en active Active
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