CN221797679U - Hydrogen and oxygen production system for ship hydrogen station - Google Patents
Hydrogen and oxygen production system for ship hydrogen station Download PDFInfo
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- CN221797679U CN221797679U CN202420197524.3U CN202420197524U CN221797679U CN 221797679 U CN221797679 U CN 221797679U CN 202420197524 U CN202420197524 U CN 202420197524U CN 221797679 U CN221797679 U CN 221797679U
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 191
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 191
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 178
- 239000001301 oxygen Substances 0.000 title claims abstract description 138
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 138
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 136
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 297
- 238000000926 separation method Methods 0.000 claims abstract description 53
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 22
- 238000000746 purification Methods 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims description 26
- PIYVNGWKHNMMAU-UHFFFAOYSA-N [O].O Chemical compound [O].O PIYVNGWKHNMMAU-UHFFFAOYSA-N 0.000 claims description 23
- 238000003860 storage Methods 0.000 claims description 19
- 230000001172 regenerating effect Effects 0.000 claims description 18
- 238000005868 electrolysis reaction Methods 0.000 claims description 12
- 230000001502 supplementing effect Effects 0.000 claims description 10
- 238000005273 aeration Methods 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 238000005984 hydrogenation reaction Methods 0.000 abstract description 16
- 238000011049 filling Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000006227 byproduct Substances 0.000 abstract description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract description 2
- 229910001882 dioxygen Inorganic materials 0.000 abstract description 2
- 230000008929 regeneration Effects 0.000 description 14
- 238000011069 regeneration method Methods 0.000 description 14
- 239000000047 product Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 239000007788 liquid Substances 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 238000001816 cooling Methods 0.000 description 8
- 238000001035 drying Methods 0.000 description 7
- 238000010981 drying operation Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 239000000446 fuel Substances 0.000 description 5
- 241000251468 Actinopterygii Species 0.000 description 4
- 239000002808 molecular sieve Substances 0.000 description 4
- 238000006213 oxygenation reaction Methods 0.000 description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 3
- 239000008213 purified water Substances 0.000 description 3
- 238000009924 canning Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 239000002274 desiccant Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model discloses a hydrogen and oxygen production system of a ship hydrogen station, which comprises an electrolytic tank system, a pure water circulating system, a hydrogen separation system, an oxygen separation system, a hydrogen purification system and an oxygen collection system, wherein the electrolytic tank system comprises a PEM electrolytic tank, a hydrogen gas outlet of the PEM electrolytic tank is connected with the hydrogen separation system through a hydrogen pipeline, an oxygen gas outlet of the PEM electrolytic tank is connected with the oxygen separation system through an oxygen pipeline, a hydrogen outlet of the hydrogen separation system is connected with the hydrogen purification system through a pipeline, and an oxygen outlet of the oxygen separation system is connected with the oxygen collection system through a pipeline; the utility model can meet the huge consumption requirement of the river basin ship for hydrogenation, improve the hydrogenation efficiency, and simultaneously can produce byproduct oxygen for filling so as to increase the economic benefit.
Description
Technical Field
The utility model relates to the technical field of ship hydrogen production stations, in particular to a hydrogen and oxygen production system of a ship hydrogen production station.
Background
Hydrogen is used as an energy source with low energy consumption, low pollution and high energy efficiency, and is widely applied to energy power equipment, and partial automobiles, ships, airplanes and the like at present adopt hydrogen as fuel energy. Taking a hydrogen fuel automobile as an example, a hydrogen storage device (such as a hydrogen storage bottle) can be arranged on the hydrogen fuel automobile, and the stored hydrogen can be supplied to a driving device through a fuel system by filling the hydrogen into the hydrogen storage device in advance to drive the hydrogen fuel automobile to move. However, for ships, the hydrogen amount required is huge, and the hydrogenation process carried out by the hydrogen storage bottle is not very in line with the actual demand, so that the ships need to be driven to a hydrogenation station on the shore for the hydrogenation process; however, the hydrogen station is not provided at present, after hydrogen is produced by a hydrogen production chemical plant, the hydrogen is conveyed to the hydrogen station through a canning vehicle, the required transportation cost is high, and the hydrogen storage amount required by a ship is about 240kg, if the hydrogen is simply hydrogenated through a hydrogen tank conveyed by the canning vehicle, the consumed hydrogenation time is long (about three and four hours), and the transportation efficiency is affected; there is also a KR 20230063978A-offshore hydrogen addition station which uses wind power to generate electricity and uses the electricity generated by a wind power generator to electrolyze sea water, then stores hydrogen generated by the unit and the electrolysis unit, the hydrogen addition station carried by the unit is portable, the hydrogen addition amount is small, the hydrogen addition requirement of a small ship can be met, and the hydrogen addition station also depends on external conditions (such as wind power; therefore, a hydrogen and oxygen production system of a ship hydrogenation station is needed to be designed so as to meet the huge consumption requirement of hydrogenation of ships in river basin, improve hydrogenation efficiency, and simultaneously produce byproduct oxygen for filling so as to increase economic benefit.
Disclosure of utility model
The utility model aims to overcome the defects and provide the hydrogen and oxygen production system of the ship hydrogenation station, so as to meet the huge consumption requirement of the ship hydrogenation in the river basin, improve the hydrogenation efficiency, and simultaneously produce by-product oxygen for filling and increase the economic benefit.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a hydrogen manufacturing and oxygen generating system of ship hydrogen station, includes electrolysis trough system, pure water circulation system, hydrogen separation system, oxygen separation system, hydrogen purification system and oxygen collecting system, electrolysis trough system includes the PEM electrolysis trough, PEM electrolysis trough hydrogen venthole passes through the hydrogen pipeline and is connected with hydrogen separation system, PEM electrolysis trough oxygen venthole passes through the oxygen pipeline and is connected with oxygen separation system, and hydrogen separation system hydrogen export passes through the pipeline and is connected with hydrogen purification system, and oxygen separation system oxygen export passes through the pipeline and is connected with oxygen collecting system.
Preferably, the pure water circulation system comprises a pure water tank, a water outlet of the pure water tank is connected with a water inlet of a pure water heat exchanger through a first pure water pipeline, a water outlet of the pure water heat exchanger is connected with a PEM (proton exchange membrane) electrolytic cell through a pipeline, and a pure water circulation pump is arranged on the first pure water pipeline.
Preferably, the hydrogen separation system comprises a hydrogen-water separator connected with a hydrogen pipeline, wherein the air outlet end of the hydrogen-water separator is connected with the hydrogen purification system through a hydrogen air outlet pipeline, the hydrogen air outlet pipeline is sequentially provided with a hydrogen cooler and a first gas-water separator, and the water outlet ends of the hydrogen cooler and the first gas-water separator are connected with a water return port of the hydrogen-water separator through a first pure water return pipeline.
Preferably, the oxygen separation system comprises an oxygen-water separator connected with an oxygen pipeline, the air outlet end of the oxygen-water separator is connected with the oxygen collection system through an oxygen outlet pipeline, an oxygen cooler and a second gas-water separator are sequentially arranged on the oxygen outlet pipeline, and the water outlet ends of the oxygen cooler and the second gas-water separator are connected with the water return port of the oxygen-water separator through a second pure water return pipeline.
Preferably, the other water outlet of the pure water tank is connected with the water supplementing port of the hydrogen-water separator and the water supplementing port of the oxygen-water separator respectively through a second pure water pipeline, a pure water supplementing pump is arranged on the second pure water pipeline, the water draining end of the hydrogen-water separator and the water draining end of the oxygen-water separator are both connected with the water returning port of the pure water tank through a water draining pipeline, the water draining port of the pure water tank is connected with the water collector through a third pure water pipeline, and the water inlet of the pure water tank is provided with a pure water inlet pipeline.
Preferably, the drainage pipeline is also connected with a disqualified pure water discharge pipeline, and the disqualified pure water discharge pipeline is provided with an on-line conductivity meter and a solenoid valve.
Preferably, the hydrogen purification system comprises a third gas-water separator connected with a hydrogen gas outlet pipeline, the gas outlet end of the third gas-water separator is connected with the gas inlet end of the deoxidizer through a pipeline, the gas outlet end of the deoxidizer is connected with the deoxidizing cooler through a pipeline, a plurality of fourth gas-water separators are sequentially arranged on the gas outlet pipeline of the deoxidizing cooler, the water draining ends of the third gas-water separator and the fourth gas-water separator are connected with a water collector through pipelines, and a hydrogen emptying pipeline and a sewage draining pipeline are further arranged on the water collector.
Preferably, three fourth gas-water separators are sequentially arranged on an air outlet pipe line of the deoxidizing cooler, an air outlet end of the first fourth gas-water separator is connected with an inlet of the first regenerative cooler through a pipeline, an outlet of the first regenerative cooler is connected with an inlet of the dryer A through a pipeline, an air outlet end of the second fourth gas-water separator is connected with an inlet of the second regenerative cooler through a pipeline, an outlet of the second regenerative cooler is connected with an inlet of the dryer B through a pipeline, an air outlet end of the third fourth gas-water separator is connected with an inlet of the third regenerative cooler through a pipeline, an outlet of the third regenerative cooler is connected with an inlet of the dryer C through a pipeline, an outlet of the dryer A, an outlet of the dryer B and an outlet of the dryer C are connected with a filter through pipelines, and an outlet of the filter is connected with a hydrogen pipeline of a product.
Preferably, the first fourth gas-water separator inlet end pipeline is provided with a first valve, the second fourth gas-water separator inlet end pipeline is provided with a second valve, and the third fourth gas-water separator inlet end pipeline is provided with a third valve.
Preferably, the oxygen collection system comprises a first storage tank connected with an oxygen outlet pipeline, the outlet of the first storage tank is connected with an inlet of a hydrogen remover through a pipeline, the outlet of the hydrogen remover is connected with an inlet of the hydrogen remover through a pipeline, the outlet of the hydrogen remover is connected with an inlet of a fifth gas-water separator through a pipeline, the outlet of the fifth gas-water separator is connected with an inlet of an oxygen dryer through a pipeline, the outlet of the oxygen dryer is connected with an inlet of a second storage tank through a pipeline, the outlet of the second storage tank is connected with one side of a supercharger through a pipeline, the other side of the supercharger is connected with an inlet of an oxygen cylinder group through a pipeline, a drainage pipeline is arranged at the drainage end of the fifth gas-water separator, and the drainage pipeline stretches into an aeration or oxygenation area in a river.
The utility model has the beneficial effects that:
1. The hydrogen and oxygen production system of the ship hydrogenation station can meet the huge dosage requirement of the ship hydrogenation in the river basin, improves the hydrogenation efficiency, can realize the dosage requirement of 240kg of hydrogen to be filled in 1 hour, and only needs to wait for 1 hour for the hydrogen energy ship with 240kg of hydrogen storage, thereby greatly shortening the hydrogenation time, producing byproduct oxygen for filling and increasing the economic benefit;
2. The water separated by the hydrogen separation system is temporarily stored in the hydrogen-water separator, the water separated by the oxygen separation system is temporarily stored in the oxygen-water separator, when the water quality detected by the on-line conductivity meter meets the requirement, the water in the hydrogen-water separator and the oxygen-water separator enters the pure water tank through the drainage pipeline for repeated use, and when the water quality detected by the on-line conductivity meter does not meet the requirement, the electromagnetic valve on the disqualified pure water drainage pipeline is opened, so that the water is discharged and treated; the pure water resource can be effectively utilized through the process, and the production cost is saved.
3. The discharge pipeline extends into an aeration or oxygenation area in a river, and a small amount of oxygen is remained in liquid discharged by the discharge pipeline in general, so that the characteristic can be utilized to directly discharge the liquid into the river (particularly a fish gathering area), and the oxygen is dissolved in water, so that the oxygen content of river water can be increased, the growth of fish is promoted, and bubbles can be generated when the oxygen is dissolved in the water, and the aeration process is promoted; the process has obvious ecological environment improving effect.
4. When the dryer is required to regenerate the drying agent in the dryer, the dryer A, the dryer B and the dryer C can be controlled to sequentially perform drying work and regeneration process through the alternate opening and closing processes of the first valve, the second valve and the third valve; the regeneration and the drying work are carried out simultaneously, and the drying process is less influenced while the regeneration process is carried out.
Drawings
FIG. 1 is a schematic diagram of the pure water circulation system, the hydrogen separation system and the oxygen separation system of a hydrogen-making and oxygen-making system of a ship hydrogen station;
FIG. 2 is a schematic diagram of a hydrogen purification system of a hydrogen-to-oxygen system of a ship hydrogen station;
FIG. 3 is a schematic diagram of an oxygen collection system for a hydrogen-to-oxygen system for a hydrogen station of a ship.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the specific examples.
As shown in fig. 1-3, the hydrogen and oxygen production system of the ship hydrogen station comprises an electrolytic tank system 1, a pure water circulation system 2, a hydrogen separation system 3, an oxygen separation system 4, a hydrogen purification system 5 and an oxygen collection system 6, wherein the electrolytic tank system 1 comprises a PEM electrolytic tank 1.1, a hydrogen gas outlet hole of the PEM electrolytic tank 1.1 is connected with the hydrogen separation system 3 through a hydrogen pipeline 1.2, an oxygen gas outlet hole of the PEM electrolytic tank 1.1 is connected with the oxygen separation system 4 through an oxygen pipeline 1.3, a hydrogen outlet of the hydrogen separation system 3 is connected with the hydrogen purification system 5 through a pipeline, and an oxygen outlet of the oxygen separation system 4 is connected with the oxygen collection system 6 through a pipeline.
In this embodiment, raw water (i.e., purified water purified by a water purifier) in the electrolytic cell will be decomposed under the action of direct current, and hydrogen and oxygen will be generated on the cathode and anode surfaces of each electrolytic cell, respectively. The gas generated from the electrolysis cell flows out through the hydrogen side and oxygen side pipelines respectively along with the electrolyte. In addition, according to the water electrolysis hydrogen production process principle, raw material pure water in the PEM electrolytic tank can be decomposed under the action of direct current, and hydrogen and oxygen can be respectively generated on the surfaces of the cathode and the anode of each electrolytic cell. The gas generated from the electrolysis cell entrains pure water vapor and flows into the respective air passages through the hydrogen and oxygen outlet holes above the electrode plates respectively for converging, and flows into the gas separation system through the hydrogen pipeline and the oxygen pipeline after being converged and collected uniformly through the hydrogen and oxygen air chambers.
Preferably, the pure water circulation system 2 comprises a pure water tank 2.1, a water outlet of the pure water tank 2.1 is connected with a water inlet of a pure water heat exchanger 2.3 through a first pure water pipeline 2.2, a water outlet of the pure water heat exchanger 2.3 is connected with a PEM electrolytic tank 1.1 through a pipeline, and a pure water circulation pump 2.4 is arranged on the first pure water pipeline 2.2.
Preferably, the hydrogen separation system 3 comprises a hydrogen-water separator 3.1 connected with a hydrogen pipeline 1.2, an air outlet end of the hydrogen-water separator 3.1 is connected with the hydrogen purification system 5 through a hydrogen air outlet pipeline 3.2, a hydrogen cooler 3.3 and a first gas-water separator 3.4 are sequentially arranged on the hydrogen air outlet pipeline 3.2, and water draining ends of the hydrogen cooler 3.3 and the first gas-water separator 3.4 are connected with a water return port of the hydrogen-water separator 3.1 through a first pure water return pipeline 3.5. In this embodiment, the hydrogen separation system is to separate hydrogen from pure water from the PEM electrolyzer. The mixed gas-liquid of hydrogen and pure water firstly enters a hydrogen-water separator, and most of pure water and hydrogen can be separated through the action of gravity. In addition, because the most suitable operating temperature of the PEM electrolyzer is about 65 ℃, the highest operating temperature of the produced hydrogen can reach about 65 ℃ and the temperature is higher, and the hydrogen still entrains moisture. The hydrogen and the water vapor are simultaneously introduced into the hydrogen cooler for hydrogen cooling, water is condensed to form liquid water while cooling, then the liquid water enters the hydrogen-gas-water separator through a pipeline for gas-water separation again, so that the water content in a crude hydrogen product can be effectively reduced, the hydrogen after secondary gas-water separation is sequentially analyzed by an online analyzer, and if the online analysis result is unqualified, the hydrogen is subjected to emptying treatment by a flame arrester; and if the analysis result is qualified, sending the hydrogen into a later-stage purification system through a pipeline. And the gas production data can be submitted to the PLC for statistics, so that the requirements of user data storage and recording are met.
Preferably, the oxygen separation system 4 comprises an oxygen-water separator 4.1 connected with an oxygen pipeline 1.3, an air outlet end of the oxygen-water separator 4.1 is connected with an oxygen collection system 6 through an oxygen outlet pipeline 4.2, an oxygen cooler 4.3 and a second gas-water separator 4.4 are sequentially arranged on the oxygen outlet pipeline 4.2, and water discharge ends of the oxygen cooler 4.3 and the second gas-water separator 4.4 are connected with a water return port of the oxygen-water separator 4.1 through a second pure water return pipeline 4.5. In this embodiment, the oxygen separation system is a system for separating oxygen from pure water from a PEM electrolyzer, similar to the hydrogen separation system. The mixed gas-liquid of oxygen and pure water firstly enters an oxygen-water separator, and most of pure water and oxygen are separated through the action of gravity. The maximum possible operating temperature of the oxygen produced by the PEM electrolyzer reaches 65 ℃, at which time it is still necessary to further separate the moisture in the oxygen (the separation is aimed at recovering as much pure water as possible, reducing the pure water consumption of the system). The oxygen after the secondary oxygen gas-water separation is sequentially analyzed by an online analyzer, and after analysis, unqualified oxygen is emptied, and oxygen meeting the established standard can be emptied or collected in a concentrated manner according to the requirement of a user to form a crude oxygen product. Meanwhile, the gas production data can be submitted to the PLC for statistics, so that the data storage and recording requirements are met.
Preferably, the other water outlet of the pure water tank 2.1 is respectively connected with a water supplementing port of the hydrogen-water separator 3.1 and a water supplementing port of the oxygen-water separator 4.1 through a second pure water pipeline 2.5, a pure water supplementing pump 2.6 is arranged on the second pure water pipeline 2.5, the water draining end of the hydrogen-water separator 3.1 and the water draining end of the oxygen-water separator 4.1 are both connected with a water returning port of the pure water tank 2.1 through a water draining pipeline 7, a water draining port of the pure water tank 2.1 is connected with a water collector 8 through a third pure water pipeline 2.7, and a water inlet of the pure water tank 2.1 is provided with a pure water inlet pipeline 2.8. In this embodiment, when the hydrogen-water separator and the oxygen-water separator are subjected to liquid seal water replenishment according to the pressure balance requirement, the pure water replenishment pump can be used for quantitatively replenishing water.
Preferably, the drainage pipeline 7 is also connected with a reject purified water discharge pipeline 9, and an online conductivity meter and a solenoid valve are arranged on the reject purified water discharge pipeline 9.
Pure water is the main raw material consumed in PEM electrolysis, and changes in temperature and power, as gas continues to be produced, can result in gas entraining significant amounts of pure water into the gas separation system. The gas and the pure water can be separated by the water/gas separation function of the gas-water separator (the hydrogen-water separator 3.1 and the oxygen-water separator 4.1), and a large amount of water after separation is temporarily stored in the hydrogen-water separator and the oxygen-water separator. A communicating pipe is arranged at the bottoms of the two separators, two branches are arranged at the outlet of the communicating pipe, one branch is connected into the pure water tank for recovery (namely a drainage pipeline 7), and the other branch is connected with a pure water discharge point which does not accord with electrolysis (namely a disqualified pure water discharge pipeline 9). When the online conductivity meter detects that the water quality does not meet the requirement, a drain valve on a communicating pipeline is opened, and pure water is discharged; when the water quality meets the requirements, the reflux pure water enters the pure water tank for mixing, and enters the electrolytic tank for water supplementing after passing through the pure water circulating pump and the pure water heat exchanger.
Preferably, the hydrogen purification system 5 comprises a third gas-water separator 5.1 connected with a hydrogen gas outlet pipeline 3.2, the gas outlet end of the third gas-water separator 5.1 is connected with the gas inlet end of the deoxidizer 5.2 through a pipeline, the gas outlet end of the deoxidizer 5.2 is connected with a deoxidizing cooler 5.3 through a pipeline, a plurality of fourth gas-water separators 5.4 are sequentially arranged on a gas outlet pipeline of the deoxidizing cooler 5.3, the water discharge ends of the third gas-water separator 5.1 and the fourth gas-water separator 5.4 are connected with a water collector 8 through pipelines, and the water collector 8 is also provided with a hydrogen gas emptying pipeline 8.1 and a sewage pipeline 8.2. In this embodiment, the deoxidizer mainly serves to convert oxygen in the hydrogen gas into water by the deoxidizing catalyst, thereby removing the mixed oxygen component in the hydrogen gas.
Preferably, three fourth gas-water separators 5.4 are sequentially arranged on the gas outlet pipe line of the deoxidizing cooler 5.3, the gas outlet end of the first fourth gas-water separator 5.4 is connected with the inlet of the first regenerative cooler 5.5 through a pipeline, the outlet of the first regenerative cooler 5.5 is connected with the inlet of the dryer A5.6 through a pipeline, the gas outlet end of the second fourth gas-water separator 5.4 is connected with the inlet of the second regenerative cooler 5.7 through a pipeline, the outlet of the second regenerative cooler 5.7 is connected with the inlet of the dryer B5.8 through a pipeline, the gas outlet end of the third fourth gas-water separator 5.4 is connected with the inlet of the third regenerative cooler 5.9 through a pipeline, the outlet of the third regenerative cooler 5.9 is connected with the inlet of the dryer C5.10 through a pipeline, the outlets of the dryer A5.6, the dryer B5.8 and the dryer C5.10 are all connected with the filter 5.11 through pipelines, and the outlet of the filter 5.11 is connected with the product hydrogen pipeline 5.12. In this example, the dryer primarily functions to adsorb and remove water from the hydrogen gas through the molecular sieve. And the deoxidized and dried hydrogen is sent into a hydrogen filter for filtering, so that qualified hydrogen meeting the product quality requirement can be obtained.
Preferably, the inlet end pipeline of the first fourth gas-water separator 5.4 is provided with a first valve 5.13, the inlet end pipeline of the second fourth gas-water separator 5.4 is provided with a second valve 5.14, and the inlet end pipeline of the third fourth gas-water separator 5.4 is provided with a third valve 5.15. When the drier in the drier is required to be regenerated, the drier A5.6, the drier B5.8 and the drier C5.10 can be controlled to sequentially perform the drying work and the regeneration process through the alternate opening and closing processes of the first valve, the second valve and the third valve. The regeneration and the drying work are carried out simultaneously, and the drying process is less influenced while the regeneration process is carried out.
Preferably, the oxygen collection system 6 comprises a first storage tank 6.1 connected with an oxygen outlet pipeline 4.2, an outlet of the first storage tank 6.1 is connected with an inlet of a hydrogen remover 6.2 through a pipeline, an outlet of the hydrogen remover 6.2 is connected with an inlet of the hydrogen remover 6.3 through a pipeline, an outlet of the hydrogen remover 6.3 is connected with an inlet of a fifth gas-water separator 6.4 through a pipeline, an outlet of the fifth gas-water separator 6.4 is connected with an inlet of an oxygen dryer 6.5 through a pipeline, an outlet of the oxygen dryer 6.5 is connected with an inlet of a second storage tank 6.6 through a pipeline, an outlet of the second storage tank 6.6 is connected with one side of a booster 6.7 through a pipeline, the other side of the booster 6.7 is connected with an inlet of an oxygen cylinder group 6.8 through a pipeline, a water discharge end of the fifth gas-water separator 6.4 is provided with a discharge pipeline 6.9, and the discharge pipeline 6.9 stretches into an aeration or oxygenation area in a river. In general, a small amount of oxygen remains in the liquid discharged from the discharge line 6.9, so that the liquid can be directly discharged into the river (particularly, a fish gathering area) by utilizing the characteristic, oxygen is dissolved in water, so that the oxygen content of the river water can be increased, the growth of the fish is promoted, and bubbles can be generated when the oxygen is dissolved in the water, and the aeration process is promoted. In addition, in the present embodiment, the hydrogen remover mainly functions to convert hydrogen in oxygen into water through the dehydrogenation catalyst, thereby removing the mixed hydrogen component in the oxygen.
In addition, the utility model also discloses a use method of the ship hydrogen-making and oxygen-making system of the hydrogen-making station, which comprises the following steps:
S1, pure water after purification is sent into a PEM (proton exchange membrane) electrolytic tank 1.1 in an electrolytic tank system 1 by a pure water circulation system 2, raw water in the PEM electrolytic tank 1.1 is decomposed under the action of direct current, generated hydrogen is carried with pure water vapor to enter a hydrogen separation system 3 through a hydrogen pipeline 1.2, and generated oxygen is carried with pure water vapor to enter an oxygen separation system 4 through an oxygen pipeline 1.3;
S2, separating the hydrogen from the PEM electrolytic tank from pure water by a hydrogen separation system 3 to obtain a crude hydrogen product, and then introducing the crude hydrogen product into a hydrogen purification system 5; the oxygen separation system 4 separates oxygen from pure water in the PEM electrolytic cell to obtain a crude oxygen product, and then the crude oxygen product is introduced into the oxygen collection system 6;
s3, temporarily storing water separated by the hydrogen separation system 3 in the hydrogen-water separator 3.1, temporarily storing the water separated by the oxygen separation system 4 in the oxygen-water separator 4.1, and when the water quality detected by the online conductivity meter meets the requirement, enabling the water in the hydrogen-water separator 3.1 and the water in the oxygen-water separator 4.1 to enter the pure water tank 2.1 through the drainage pipeline 7 for repeated use, and when the water quality detected by the online conductivity meter does not meet the requirement, opening an electromagnetic valve on the unqualified pure water drainage pipeline 9 so as to drain the water;
S4, after gas-water separation, the crude hydrogen product firstly converts oxygen mixed in hydrogen into water through a deoxidizer 5.2, then is cooled, and after gas-water separation, sequentially passes through a dryer A5.6, a dryer B5.8 and a dryer C5.10 for drying, and water in the hydrogen is adsorbed and removed; the dried hydrogen is sent into a filter 5.11 for filtration, and then qualified hydrogen meeting the product quality requirement can be obtained;
s5, the crude oxygen product is in an oxygen collection system 6, hydrogen mixed in oxygen is converted into water through a hydrogen remover 6.2, then the water is cooled and separated from air and water, then the water is dried through an oxygen dryer 6.5, finally the water is pressurized through a booster 6.7 and then is introduced into an oxygen cylinder group 6.8 for storage, and liquid separated by a fifth gas-water separator 6.4 flows into an aeration or oxygenation area in a river through a discharge pipeline 6.9.
Further, in the step S4, when the drying agents in the dryers a5.6, B5.8 and C5.10 need to be regenerated, the regeneration steps are as follows:
Step1, opening a first valve 5.13 and a third valve 5.15, closing a second valve 5.14, continuing the drying operation of the dryer A5.6 and the dryer C5.10 at the moment, stopping the drying operation of the dryer B5.8, opening an electric heating element of the dryer B5.8, increasing the temperature in the dryer B5.8, gradually desorbing moisture adsorbed on a molecular sieve of the dryer B5.8, opening the second valve 5.14 after the regeneration is completed, opening a second regeneration cooler 5.7, cooling the cooled hydrogen to carry the desorbed moisture to pass through a filter 5.11, and cooling the heated dryer B5.8 by the cooled hydrogen quickly so as to lead the time for using the dryer to be advanced;
step2, opening the second valve 5.14 and the third valve 5.15, closing the first valve 5.13, at this time, continuing the drying operation of the dryer B5.8 and the dryer C5.10, stopping the drying operation of the dryer A5.6, opening an electric heating element of the dryer A5.6, increasing the temperature in the dryer A5.6, gradually desorbing moisture adsorbed on a molecular sieve thereof, opening the first valve 5.13 after the regeneration is completed, opening the first regeneration cooler 5.5, cooling the cooled hydrogen to carry the desorbed moisture through the filter 5.11, and cooling the warmed dryer A5.6 by the cooled hydrogen quickly to lead the time for putting the dryer A5.6 into use to be advanced;
Step3, opening the first valve 5.13 and the second valve 5.14, closing the third valve 5.15, at this time, continuing the drying operation of the dryer a5.6 and the dryer B5.8, stopping the drying operation of the dryer C5.10, opening the electric heating element of the dryer C5.10, increasing the temperature in the dryer C5.10, gradually desorbing the moisture adsorbed on the molecular sieve thereof, opening the third valve 5.15 after the regeneration is completed, opening the third regeneration cooler 5.9, cooling the hydrogen to carry the desorbed moisture through the filter 5.11, and cooling the heated dryer C5.10 by the cooled hydrogen to lead the time for putting the dryer into use to be advanced.
In this embodiment, the filter also adsorbs moisture desorbed during regeneration, so that the filter element can be replaced periodically, and the hydrogen production efficiency is generally less affected due to the shorter replacement time.
The above embodiments are only preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the scope of the present utility model should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.
Claims (10)
1. The utility model provides a hydrogen manufacturing and oxygen generating system of ship hydrogen station, includes electrolysis trough system (1), pure water circulation system (2), hydrogen separation system (3), oxygen separation system (4), hydrogen purification system (5) and oxygen collecting system (6), its characterized in that: the electrolytic tank system (1) comprises a PEM electrolytic tank (1.1), a hydrogen outlet hole of the PEM electrolytic tank (1.1) is connected with the hydrogen separation system (3) through a hydrogen pipeline (1.2), an oxygen outlet hole of the PEM electrolytic tank (1.1) is connected with the oxygen separation system (4) through an oxygen pipeline (1.3), a hydrogen outlet of the hydrogen separation system (3) is connected with the hydrogen purification system (5) through a pipeline, and an oxygen outlet of the oxygen separation system (4) is connected with the oxygen collection system (6) through a pipeline.
2. The hydrogen and oxygen generation system of hydrogen station of ship according to claim 1, wherein: the pure water circulation system (2) comprises a pure water tank (2.1), a water outlet of the pure water tank (2.1) is connected with a water inlet of a pure water heat exchanger (2.3) through a first pure water pipeline (2.2), a water outlet of the pure water heat exchanger (2.3) is connected with a PEM (proton exchange membrane) electrolytic tank (1.1) through a pipeline, and a pure water circulation pump (2.4) is arranged on the first pure water pipeline (2.2).
3. A hydrogen and oxygen generation system for a ship's hydrogen and station according to claim 2, wherein: the hydrogen separation system (3) comprises a hydrogen-water separator (3.1) connected with a hydrogen pipeline (1.2), the air outlet end of the hydrogen-water separator (3.1) is connected with the hydrogen purification system (5) through a hydrogen air outlet pipeline (3.2), the hydrogen air outlet pipeline (3.2) is sequentially provided with a hydrogen cooler (3.3) and a first gas-water separator (3.4), and the water outlet ends of the hydrogen cooler (3.3) and the first gas-water separator (3.4) are connected with a water return port of the hydrogen-water separator (3.1) through a first pure water return pipeline (3.5).
4. A hydrogen and oxygen generation system for a ship's hydrogen and station according to claim 3, wherein: the oxygen separation system (4) comprises an oxygen-water separator (4.1) connected with an oxygen pipeline (1.3), the air outlet end of the oxygen-water separator (4.1) is connected with an oxygen collection system (6) through an oxygen outlet pipeline (4.2), the oxygen outlet pipeline (4.2) is sequentially provided with an oxygen cooler (4.3) and a second gas-water separator (4.4), and the water outlet ends of the oxygen cooler (4.3) and the second gas-water separator (4.4) are connected with a water return port of the oxygen-water separator (4.1) through a second pure water return pipeline (4.5).
5. A hydrogen and oxygen generation system for a ship's hydrogen and station according to claim 4, wherein: the other water outlet of the pure water tank (2.1) is connected with a water supplementing port of the hydrogen-water separator (3.1) and a water supplementing port of the oxygen-water separator (4.1) through a second pure water pipeline (2.5), a pure water supplementing pump (2.6) is arranged on the second pure water pipeline (2.5), the water draining end of the hydrogen-water separator (3.1) and the water draining end of the oxygen-water separator (4.1) are connected with a water returning port of the pure water tank (2.1) through a water draining pipeline (7), a water draining port of the pure water tank (2.1) is connected with a water collector (8) through a third pure water pipeline (2.7), and a pure water inlet pipeline (2.8) is arranged at a water inlet of the pure water tank (2.1).
6. A hydrogen and oxygen generation system for a ship's hydrogen and station according to claim 5, wherein: the drainage pipeline (7) is also connected with a disqualified pure water discharge pipeline (9), and an online conductivity meter and an electromagnetic valve are arranged on the disqualified pure water discharge pipeline (9).
7. A hydrogen and oxygen generation system for a ship's hydrogen and station according to claim 5, wherein: the hydrogen purification system (5) comprises a third gas-water separator (5.1) connected with a hydrogen gas outlet pipeline (3.2), the gas outlet end of the third gas-water separator (5.1) is connected with the gas inlet end of a deoxidizer (5.2) through a pipeline, the gas outlet end of the deoxidizer (5.2) is connected with a deoxidizing cooler (5.3) through a pipeline, a plurality of fourth gas-water separators (5.4) are sequentially arranged on the gas outlet pipeline of the deoxidizing cooler (5.3), and the water outlet ends of the third gas-water separator (5.1) and the fourth gas-water separator (5.4) are connected with a water collector (8) through pipelines, and a hydrogen emptying pipeline (8.1) and a sewage draining pipeline (8.2) are further arranged on the water collector (8).
8. A hydrogen and oxygen generation system for a ship's hydrogen and station according to claim 7, wherein: three fourth gas-water separators (5.4) are sequentially arranged on an air outlet pipe line of the deoxidizing cooler (5.3), an air outlet end of the first fourth gas-water separator (5.4) is connected with an inlet of the first regenerative cooler (5.5) through a pipeline, an outlet of the first regenerative cooler (5.5) is connected with an inlet of the dryer A (5.6) through a pipeline, an air outlet end of the second fourth gas-water separator (5.4) is connected with an inlet of the second regenerative cooler (5.7) through a pipeline, an outlet of the second regenerative cooler (5.7) is connected with an inlet of the dryer B (5.8) through a pipeline, an air outlet end of the third fourth gas-water separator (5.4) is connected with an inlet of the third regenerative cooler (5.9) through a pipeline, an outlet of the third regenerative cooler (5.9) is connected with an inlet of the dryer C (5.10) through a pipeline, and outlets of the dryer A (5.6), dryer B (5.8) and dryer C (5.10) are connected with an outlet of the filter (5.11.11) through pipelines.
9. The hydrogen and oxygen generation system of hydrogen station of ship according to claim 8, wherein: the inlet end pipeline of the first fourth gas-water separator (5.4) is provided with a first valve (5.13), the inlet end pipeline of the second fourth gas-water separator (5.4) is provided with a second valve (5.14), and the inlet end pipeline of the third fourth gas-water separator (5.4) is provided with a third valve (5.15).
10. A hydrogen and oxygen generation system for a ship's hydrogen and station according to claim 5, wherein: the oxygen collection system (6) comprises a first storage tank (6.1) connected with an oxygen outlet pipeline (4.2), an outlet of the first storage tank (6.1) is connected with an inlet of a hydrogen removing device (6.2) through a pipeline, an outlet of the hydrogen removing device (6.2) is connected with an inlet of a hydrogen removing cooler (6.3) through a pipeline, an outlet of the hydrogen removing cooler (6.3) is connected with an inlet of a fifth gas-water separator (6.4) through a pipeline, an outlet of the fifth gas-water separator (6.4) is connected with an inlet of an oxygen dryer (6.5) through a pipeline, an outlet of the oxygen dryer (6.5) is connected with an inlet of a second storage tank (6.6) through a pipeline, an outlet of the second storage tank (6.6) is connected with one side of a booster (6.7) through a pipeline, the other side of the booster (6.7) is connected with an inlet of an oxygen cylinder group (6.8) through a pipeline, a water draining end of the fifth gas-water separator (6.4) is provided with a draining pipeline (6.9), and the draining pipeline (6.9) stretches into an aeration area in a river or into an aeration area.
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