CN109185699A - It is suitable for the method for hydrotreating and system of 70MPa and 35MPa filling pressure simultaneously - Google Patents
It is suitable for the method for hydrotreating and system of 70MPa and 35MPa filling pressure simultaneously Download PDFInfo
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- CN109185699A CN109185699A CN201811205836.XA CN201811205836A CN109185699A CN 109185699 A CN109185699 A CN 109185699A CN 201811205836 A CN201811205836 A CN 201811205836A CN 109185699 A CN109185699 A CN 109185699A
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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
-
- 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
-
- 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
-
- 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
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/45—Hydrogen technologies in production processes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses the method for hydrotreating and system that are suitable for 70 and 35MPa filling pressure simultaneously, hydrogenation system includes Hydrogen Unit, outer hydrogen supply unit, surge tank, low pressure hydrogen compression unit, low pressure hydrogen storing unit, high pressure hydrogen compression unit, high-pressure hydrogen storing unit, low-voltage hydrogenation unit and high-pressure hydrogenation unit in standing.Method of hydrotreating is then utilized hydrogenation system and fills hydrogen to terminal user.Hydrogen source of the present invention may be from stand interior hydrogen manufacturing and two kinds of outer hydrogen supply, both it can be supplemented when standing interior hydrogen producer failure or undercapacity using outer hydrogen supply, can also directly be filled to unloaded long-tube trailer when the interior hydrogen capacity in station uses by oneself amounts of hydrogen more than hydrogenation stations and sell hydrogen outside；The compression device and hydrogen storage bottle group of 2 kinds of different designs pressure ratings are set, high-pressure hydrogen storing bottle quantity can be reduced and reduce storing dangerous property, the present invention can realize the hydrogen filling of two kinds of filling pressure in a hydrogenation stations, improve the utilization rate of hydrogen compression device and hydrogen storage equipment.
Description
Technical field
The present invention relates to Hydrogen Technology fields, more particularly, are related to a kind of while being suitable for 70MPa and 35MPa filling
The method of hydrotreating and system of pressure.
Background technique
Hydrogen energy source has obtained the generally pass of countries in the world as " carbon-free " energy of a kind of efficient, cleaning, sustainable development
Note, the field of traffic based on hydrogen cell automobile is one of important directions of hydrogen utilization.Hydrogen Energy is restricted at this stage to hand over
Logical field is mainly the construction of hydrogenation stations using the bottleneck of development, adds hydrogen infrastructure insufficiency, becomes current China's Hydrogen Energy industry
Develop the maximum obstruction faced.
The source of hydrogenation stations hydrogen is broadly divided into outer hydrogen supply and two class of interior hydrogen manufacturing of standing.In standing hydrogen producing hydrogenation station it is external more
Maturation, and the hydrogenation stations runed at home are all made of outer hydrogen supply mode because being restricted by various factors.But with technology
It is continuous it is mature, China's relevant laws and regulations constantly improve, stand in hydrogen manufacturing is estimated will be as the development in China's hydrogenation stations future
Trend.
The hydrogen filling pressure of hydrogenation stations has two kinds of 35MPa, 70MPa at present.Wherein, 35MPa fills the hydrogenation stations of pressure
Relatively conventional (hydrogenation stations of country's operation are largely 35MPa filling), terminal user includes fuel cell bus, object
Flow vehicle etc.；The hydrogenation stations that 70MPa fills pressure are domestic still less at present, and terminal user is mainly car etc..
At present in world wide existing 70MPa filling pressure conventional hydro station, process system process is substantially as schemed
1, shown in Fig. 2.
As shown in Figure 1, the hydrogen through 0.6~3MPa of 1 ' output of hydrogen manufacturing equipment for purifying in standing is temporarily stored into 2 ' of surge tank,
It is pressurized to 80MPa or more (such as 87.5MPa) through 3 ' of hydrogen compression device (compound compressor or pump), is distinguished through 7 ' of valve, 8 ', 9 '
It is stored in 4 ' of hydrogen storage bottle group.4 ' of hydrogen storage bottle group is made of the hydrogen storage bottle that multiple rated operating pressures are 87.5MPa, and is drawn
It is divided into three kinds of grade hydrogen storage bottles of high, medium and low voltage.
As shown in Fig. 2, the hydrogen of 5~20MPa through 11 ' of hydrogen long-tube trailer transport, by 12 ' of hydrogen device for discharging
After discharging, be pressurized to 80MPa or more (such as 87.5MPa) through 3 ' of hydrogen compression device (compressor or pump), through 7 ' of valve, 8 ',
9 ' are separately stored in 4 ' of hydrogen storage bottle group.4 ' of hydrogen storage bottle group is the hydrogen storage bottle group of 87.5MPa by multiple rated operating pressures
At, and it is divided into three kinds of grade hydrogen storage bottles of high, medium and low voltage.
It is being 70MPa when 5 ' of hydrogen machine being added to fill hydrogen to 6 ' of terminal user by filling pressure, 3 ' of hydrogen compression device
It stops transport, through 9 ' of valve, 10 ' and 5 ' of hydrogen machine is added to add hydrogen to 6 ' of terminal user from low pressure hydrogen storage bottle first, after the two pressure balance,
If 6 ' hydrogen charge pressure of terminal user does not reach requirement (such as 70MPa), continue to switch to middle pressure hydrogen storage bottle through 8 ' of valve,
10 ' and add 5 ' of hydrogen machine to 6 ' of terminal user to add hydrogen and to pressure balance, be eventually switched to high-pressure hydrogen storing bottle through 7 ' of valve, 10 ' and
Add 5 ' of hydrogen machine to add hydrogen to pressure balance to 6 ' of terminal user, the hydrogen charge pressure of 6 ' of terminal user is finally made to reach required value
(such as 70MPa).
With the consumption of hydrogen in 4 ' of hydrogen storage bottle group, pressure constantly declines.When the Hydrogen Vapor Pressure in high-pressure hydrogen storing bottle is low
When a certain pressure requirements (such as 70MPa), stop 4 ' of hydrogen storage bottle group to the gas supply for adding 5 ' of hydrogen machine.Start 3 ' of compression device at this time,
Hydrogen producer exports the hydrogen in surge tank or outer hydrogen supply long-tube trailer after being pressurized successively to hydrogen storage bottle group in extraction upstream station
Each hydrogen storage bottle in 4 ' fills hydrogen, and makes its pressure recovery to required value (such as 80~87.5MPa).It can also be set at this time by compression
Standby 3 ' need to close 7 ' of valve, 8 ', 9 ' directly through 10 ' of valve to adding 5 ' of hydrogen machine to supply.
By the above process it is found that routine 70MPa filling pressure hydrogenation stations process system has the following problems:
(1) because the hydrogen of 4 ' of hydrogen storage bottle group fills mouth, hydrogen gas outlet is same port, when 4 ' of hydrogen storage bottle group is to adding hydrogen machine
When 9 ' are supplied, 3 ' of hydrogen compression device can not then work, and the utilization rate of 3 ' of hydrogen compression device is lower.
(2) though being artificially divided into three kinds of grades of high, medium and low voltage, each hydrogen storage bottle nominal operation pressure of 4 ' of hydrogen storage bottle group
Power is all 87.5MPa, and high-pressure hydrogen storing bottle quantity is more, and risk is big.
Summary of the invention
In order to solve the problems in the existing technology, the object of the present invention is to provide one kind can be same in a hydrogenation stations
When hydrogenation system and method suitable for 70MPa and 35MPa filling pressure, while also providing and changing for existing 35MPa hydrogenation stations
Make method.
An aspect of of the present present invention provides hydrogenation system that is a kind of while being suitable for 70 and 35MPa filling pressure, feature
It is, the hydrogenation system includes Hydrogen Unit, outer hydrogen supply unit, surge tank, low pressure hydrogen compression unit, low pressure hydrogen storage in standing
Unit, high pressure hydrogen compression unit, high-pressure hydrogen storing unit, low-voltage hydrogenation unit and high-pressure hydrogenation unit, wherein
Hydrogen Unit and outer hydrogen supply unit are respectively by being provided with the hydrogen supply branch of hydrogen supply control valve and buffering in the station
Tank is connected, and the surge tank is connected with low pressure hydrogen compression unit and the low pressure hydrogen compression unit is by being provided with first
The low pressure hydrogen storage branch of control valve is connected with low pressure hydrogen storing unit；
The low pressure hydrogen storing unit by the defeated hydrogen branch of the low pressure for being disposed with the second control valve and third control valve with
Low-voltage hydrogenation unit is connected, and the defeated hydrogen branch of low pressure is connected with low pressure hydrogen storage branch and the defeated hydrogen branch of the low pressure and low pressure
The junction of hydrogen storage branch is between low pressure hydrogen compression unit and the first control valve；
It is connected between the second control valve and third control valve of the defeated hydrogen branch of low pressure and is connected with high-pressure hydrogen storing unit
High-pressure hydrogen storing branch, high-pressure hydrogen storing branch road is disposed with the 4th control valve, High Pressure Hydrogen along hydrogen flow direction
Gas compression unit and the 5th control valve；
The high-pressure hydrogen storing unit is connected by being provided with the high-pressure hydrogen transportation branch of the 6th control valve with high-pressure hydrogenation unit,
The high-pressure hydrogen transportation branch is connected with high-pressure hydrogen storing branch and the junction of the high-pressure hydrogen transportation branch and high-pressure hydrogen storing branch
Between the 5th control valve and high pressure hydrogen compression unit.
It is suitable for one embodiment of the hydrogenation system of 70 and 35MPa filling pressure, the low pressure simultaneously according to the present invention
Be also connected between defeated hydrogen branch the second control valve of road and the defeated hydrogen branch of the low pressure and the junction of high-pressure hydrogen storing branch with outside
What hydrogen supply unit was connected is flushed with hydrogen branch, and the branch road that is flushed with hydrogen is provided with the first pressure reducing valve and the 7th control valve.
It is suitable for one embodiment of the hydrogenation system of 70 and 35MPa filling pressure, the low pressure simultaneously according to the present invention
It is also connected with and height between the defeated hydrogen branch of the defeated hydrogen branch road low pressure and the junction and third control valve of high-pressure hydrogen storing branch
The handoff leg that defeated hydrogen branch is connected is pressed, is provided with the 8th control valve in the handoff leg.
It is suitable for one embodiment of the hydrogenation system of 70 and 35MPa filling pressure simultaneously according to the present invention, in the station
Hydrogen Unit is hydrogen manufacturing equipment for purifying in standing, the hydrogen supply for the hydrogen supply branch road setting that Hydrogen Unit is connected with surge tank in the station
Control valve is check-valves.
It is suitable for one embodiment of the hydrogenation system of 70 and 35MPa filling pressure, the outer confession simultaneously according to the present invention
Hydrogen unit is hydrogen long-tube trailer, the hydrogen supply control valve packet for the hydrogen supply branch road setting that the outer hydrogen supply unit is connected with surge tank
Include the second pressure reducing valve and the 9th control valve.
It is suitable for one embodiment of the hydrogenation system of 70 and 35MPa filling pressure, the low pressure simultaneously according to the present invention
Hydrogen storing unit is made of the low pressure hydrogen storage bottle that several rated operating pressures are 45MPa, the initial hydrogen in the low pressure hydrogen storage bottle
Atmospheric pressure is 40~45MPa, and the filling pressure of the low-voltage hydrogenation unit is 35MPa；The high-pressure hydrogen storing unit is by several
The high-pressure hydrogen storing bottle that rated operating pressure is 87.5MPa forms, and the initial hydrogen pressure in the high-pressure hydrogen storing bottle is 80~
87.5MPa, the filling pressure of the high-pressure hydrogenation unit are 70MPa.
The present invention also provides a kind of method of hydrotreating for being suitable for 70 and 35MPa filling pressure simultaneously, using it is above-mentioned simultaneously
Hydrogenation system suitable for 70MPa and 35MPa filling pressure fills hydrogen to terminal user.
It is suitable for one embodiment of the method for hydrotreating of 70 and 35MPa filling pressure, described plus hydrogen simultaneously according to the present invention
Method the following steps are included:
A, it is extracted in surge tank in stand interior Hydrogen Unit or outer hydrogen supply unit using low pressure hydrogen compression unit
Hydrogen is filled into low pressure hydrogen storing unit to initial hydrogen pressure after pressurization；Low pressure is extracted using high pressure hydrogen compression unit to store up
Hydrogen in hydrogen unit is further filled into high-pressure hydrogen storing unit after pressurization to initial hydrogen pressure；
B, when needing to fill hydrogen to second terminal user through low-voltage hydrogenation unit, added by low pressure hydrogen storing unit through low pressure
Hydrogen unit fills hydrogen to second terminal user, until the Hydrogen Vapor Pressure of second terminal user reaches required value；When low pressure hydrogen storage
When Hydrogen Vapor Pressure in unit is insufficient to allow the Hydrogen Vapor Pressure of second terminal user to reach required value, switching starting pressure hydrogen air pressure
Contracting unit extracts the hydrogen in surge tank and directly fills hydrogen to second terminal user through low-voltage hydrogenation unit after pressurization, directly
Hydrogen Vapor Pressure to second terminal user reaches required value, wherein the Hydrogen Vapor Pressure required value of the second terminal user is
35MPa；
When needing to fill hydrogen to first terminal user through high-pressure hydrogenation unit, by high-pressure hydrogen storing unit through high-pressure hydrogenation
Unit fills hydrogen to first terminal user, until the Hydrogen Vapor Pressure of first terminal user reaches required value；When high-pressure hydrogen storing list
When Hydrogen Vapor Pressure in member is insufficient to allow the Hydrogen Vapor Pressure of first terminal user to reach required value, switching starting high pressure hydrogen compression
Unit extracts the hydrogen in low pressure hydrogen storing unit and directly fills hydrogen to first terminal user through high-pressure hydrogenation unit after pressurization
Gas, until the Hydrogen Vapor Pressure of first terminal user reaches required value, wherein the Hydrogen Vapor Pressure required value of the first terminal user
For 70MPa；
C, when needing the hydrogen make-up into low pressure hydrogen storing unit, starting low pressure hydrogen compression unit extracts surge tank
From the Hydrogen Unit in standing or the hydrogen in outer hydrogen supply unit, it is filled into low pressure hydrogen storing unit and restores to initial hydrogen after pressurization
Pressure；The hydrogen in low pressure hydrogen storing unit is extracted using high pressure hydrogen compression unit, is further filled into high-pressure hydrogen storing after pressurization
Restore in unit to initial hydrogen pressure；
D, circulation progress step B and step C carries out terminal user to add hydrogen.
It is suitable for one embodiment of the method for hydrotreating of 70 and 35MPa filling pressure simultaneously according to the present invention, when described low
Press be also connected between defeated hydrogen branch the second control valve of road and the defeated hydrogen branch of the low pressure and the junction of high-pressure hydrogen storing branch with
Outer hydrogen supply unit be connected and be provided with the first pressure reducing valve and the 7th control valve when being flushed with hydrogen branch and hydrogen capacity is super in standing
In the case where crossing personal amounts of hydrogen,
Hydrogen is filled from low pressure hydrogen storing unit to unloaded outer hydrogen supply unit, until the Hydrogen Vapor Pressure of outer hydrogen supply unit reaches
Required value；When the Hydrogen Vapor Pressure in low pressure hydrogen storing unit is insufficient to allow the Hydrogen Vapor Pressure of outer hydrogen supply unit to reach required value, cut
It changes starting low pressure hydrogen compression unit to extract the hydrogen in surge tank and direct out hydrogen supply unit filling hydrogen after pressurization, directly
Hydrogen Vapor Pressure to outer hydrogen supply unit reaches required value.
It is suitable for one embodiment of the method for hydrotreating of 70 and 35MPa filling pressure simultaneously according to the present invention, when described low
Press be also connected between the defeated hydrogen branch of the defeated hydrogen branch road low pressure and the junction and third control valve of high-pressure hydrogen storing branch with
High-pressure hydrogen transportation branch is connected and when being provided with the handoff leg of the 8th control valve and is needing through high-pressure hydrogenation unit to first
In the case that terminal user fills hydrogen, hydrogen is filled to first terminal user through high-pressure hydrogenation unit from low pressure hydrogen storing unit,
Until the Hydrogen Vapor Pressure of first terminal user reaches balance, then switch whole to first through high-pressure hydrogenation unit from high-pressure hydrogen storing unit
End subscriber fills hydrogen, until the Hydrogen Vapor Pressure of first terminal user reaches required value；When the hydrogen pressure in high-pressure hydrogen storing unit
When power is also insufficient to allow the Hydrogen Vapor Pressure of first terminal user to reach required value, switching starting high pressure hydrogen compression unit extracts low
It presses the hydrogen in hydrogen storing unit and directly fills hydrogen to first terminal user through high-pressure hydrogenation unit after pressurization, until first
The Hydrogen Vapor Pressure of terminal user reaches required value.
Compared with prior art, hydrogen source of the invention may be from stand interior hydrogen manufacturing and two kinds of outer hydrogen supply, improve hydrogenation stations
Reliability；It also, can also hydrogen capacity be more than the personal hydrogen of hydrogenation stations in standing both using hydrogen supply outside long-tube trailer to hydrogenation stations
When tolerance, is directly filled to unloaded long-tube trailer and sell hydrogen outside；Compression device provided with 2 kinds of different designs pressure ratings
And hydrogen storage bottle group (rated operating pressure is respectively 45MPa, 87.5MPa), high-pressure hydrogen storing bottle quantity is reduced, hydrogen storage is reduced
The risk deposited；Also, the present invention can realize the hydrogen filling of two kinds of filling pressure in a hydrogenation stations, improve hydrogen
The utilization rate of compression device and hydrogen storage equipment.
Detailed description of the invention
Fig. 1 shows the principle schematic diagram that routine 70MPa in the prior art fills hydrogen producing hydrogenation station in pressure station.
Fig. 2 shows the principle schematic diagrams of hydrogen supply hydrogenation stations outside the filling pressure of routine 70MPa in the prior art.
Fig. 3 shows according to an exemplary embodiment of the present invention while suitable for 70 and 35MPa filling pressure plus hydrogen system
The principle schematic diagram of system.
Description of symbols:
Hydrogen Unit, 2- surge tank, 3- low pressure hydrogen compression unit, 4- low pressure hydrogen storing unit, 5- high pressure hydrogen in the station 1-
Compression unit, 6- high-pressure hydrogen storing unit, 7- high-pressure hydrogenation unit, 8- low-voltage hydrogenation unit, 9- first terminal user, 10- second
Terminal user, the outer hydrogen supply unit of 11-, the first control valve of 12-, the 4th control valve of 13-, the 5th control valve of 14-, 15- the 6th are controlled
Valve, the 8th control valve of 16-, 17- third control valve, the 7th control valve of 18-, the first pressure reducing valve of 19-, the second control valve of 20-, 21-
9th control valve, the second pressure reducing valve of 22-, 23- check-valves, 24- hydrogen supply branch, 25- low pressure hydrogen storage branch, the defeated hydrogen branch of 26- low pressure
Road, 27- high-pressure hydrogen storing branch, 28- high-pressure hydrogen transportation branch, 29- are flushed with hydrogen branch, 30- handoff leg.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification unless specifically stated can be equivalent or with similar purpose by other
Alternative features are replaced.That is, unless specifically stated, each feature is an example in a series of equivalent or similar characteristics
?.
Method of hydrotreating and system while lower mask body is to the present invention suitable for 70 and 35MPa filling pressure are said
It is bright, first the structure of the hydrogenation system and principle are described.
Fig. 3 shows according to an exemplary embodiment of the present invention while suitable for 70 and 35MPa filling pressure plus hydrogen system
The principle schematic diagram of system.
As shown in figure 3, an exemplary embodiment of the present invention, described while suitable for 70 and 35MPa filling pressure
Hydrogenation system includes Hydrogen Unit 1, outer hydrogen supply unit 11, surge tank 2, low pressure hydrogen compression unit 3, low pressure hydrogen storing unit in standing
4, high pressure hydrogen compression unit 5, high-pressure hydrogen storing unit 6, low-voltage hydrogenation unit 9 and high-pressure hydrogenation unit 7, the present invention passes through to upper
The optimization design for stating assembly connecting mode enables the hydrogenation system to realize 35MPa and two kinds of 70MPa in a hydrogenation stations
The hydrogen filling for filling pressure, improves the utilization rate of hydrogen compression device and hydrogen storage equipment.
Specifically, Hydrogen Unit 1 and outer hydrogen supply unit 11 are respectively by being provided with the hydrogen supply branch of hydrogen supply control valve in standing
24 are connected with surge tank 2, and surge tank 2 is connected with low pressure hydrogen compression unit 3 and low pressure hydrogen compression unit 3 is by being provided with
The low pressure hydrogen storage branch 25 of first control valve 12 is connected with low pressure hydrogen storing unit 4, so as to the hydrogen that will be stored in surge tank 2
It is stored in low pressure hydrogen storing unit 4 after gas pressurization.
Wherein, Hydrogen Unit 1 includes hydrogen manufacturing equipment for purifying in standing in standing, and the hydrogen source of Hydrogen Unit may be from naturally in the station
Gas reformation, methanol decomposition, electrolysis water etc., stand in the hydrogen supply control that is arranged on the hydrogen supply branch 4 that is connected with surge tank 2 of Hydrogen Unit 1
Valve processed is check-valves 23, which can prevent from making in hydrogen flow direction station when outer hydrogen supply unit 11 is to 2 hydrogen supply of surge tank
Hydrogen unit 1.Outer hydrogen supply unit 11 can be hydrogen long-tube trailer, the hydrogen supply branch 24 that outer hydrogen supply unit 11 is connected with surge tank 2
The hydrogen supply control valve of upper setting includes the second pressure reducing valve 22 and the 9th control valve 21, thus can be by the hydrogen in outer hydrogen supply unit 11
Storage is into surge tank 2 after decompression.
Low pressure hydrogen storing unit 4 passes through the defeated hydrogen branch 26 of the low pressure for being disposed with the second control valve 20 and third control valve 17
Be connected with low-voltage hydrogenation unit 8, the defeated hydrogen branch 26 of low pressure be connected with low pressure hydrogen storage branch 25 and the defeated hydrogen branch 26 of low pressure with it is low
The junction of pressure hydrogen storage branch 25 is located between low pressure hydrogen compression unit 3 and the first control valve 12, thus low pressure hydrogen storing unit 4
Hydrogen directly can be filled to second terminal user 10 by low-voltage hydrogenation unit 8.
According to the present invention, low pressure hydrogen storing unit 4 is made of the low pressure hydrogen storage bottle that several rated operating pressures are 45MPa,
Initial hydrogen pressure in low pressure hydrogen storage bottle is 40~45MPa, and the filling pressure of low-voltage hydrogenation unit 8 is 35MPa, main to be applicable in
It is filled in the hydrogen of the terminal users such as fuel cell bus, logistic car.
It is connected with and 6 phase of high-pressure hydrogen storing unit between the second control valve 20 and third control valve 17 of the defeated hydrogen branch 26 of low pressure
High-pressure hydrogen storing branch 27 even is disposed with the 4th control valve 13, high along hydrogen flow direction on high-pressure hydrogen storing branch 27
Hydrogen compression unit 5 and the 5th control valve 14 are pressed, thus low pressure hydrogen storing unit 4 can be by high pressure hydrogen compression unit 5 to height
Hydrogen storing unit 6 is pressed to supply hydrogen.
High-pressure hydrogen storing unit 7 is by being provided with the high-pressure hydrogen transportation branch 28 and 7 phase of high-pressure hydrogenation unit of the 6th control valve 15
Even, high-pressure hydrogen transportation branch 28 is connected with high-pressure hydrogen storing branch 27 and the company of high-pressure hydrogen transportation branch 28 and high-pressure hydrogen storing branch 27
Place is met between the 5th control valve 14 and high pressure hydrogen compression unit 5, thus high-pressure hydrogen storing unit 6 can directly pass through high pressure
Hydrogenation unit 7 fills hydrogen to first terminal user 9.
According to the present invention, the high-pressure hydrogen storing bottle group that high-pressure hydrogen storing unit 7 is 87.5MPa by several rated operating pressures
At the initial hydrogen pressure in high-pressure hydrogen storing bottle is 80~87.5MPa, and the filling pressure of high-pressure hydrogenation unit 7 is 70MPa.
In addition, in order to efficiently use institute's hydrogen, low pressure of the present invention when hydrogen capacity uses by oneself amounts of hydrogen more than hydrogenation stations
It is also connected between second control valve 20 and the defeated hydrogen branch 26 of low pressure and the junction of high-pressure hydrogen storing branch 27 on defeated hydrogen branch 26
It is flushed with hydrogen branch 29 with what unloaded outer hydrogen supply unit 11 was connected, is flushed with hydrogen on branch 29 and is provided with the first pressure reducing valve 19 and the 7th control
Valve 18 processed, by this be flushed with hydrogen branch 29 can fill it is outer after outer hydrogen supply unit 11 sell hydrogen, and in stand hydrogen producer failure or
When power output is unsatisfactory for hydrogenation stations hydrogen amount, it can also be supplemented by the outer hydrogen supply of outer hydrogen supply unit 11, improve the reliability of hydrogenation stations.
Wherein, the present invention is preferably provided with the interface including matching outer hydrogen supply unit 11, can be not only used for outer hydrogen supply unit
Outer hydrogen supply, can also be when the interior hydrogen capacity in station uses by oneself amounts of hydrogen more than hydrogenation stations, through the interface to outside zero load to hydrogenation stations
Hydrogen supply unit fills and sells hydrogen outside；
Also, in order to guarantee operation of the high-pressure hydrogenation unit 7 to first terminal user 9, low pressure on the defeated hydrogen branch 26 of low pressure
It is also connected between defeated hydrogen branch 26 and the junction and third control valve of high-pressure hydrogen storing branch 27 and 28 phase of high-pressure hydrogen transportation branch
Handoff leg 30 even is provided with the 8th control valve 16 in the handoff leg 30, and low pressure storage may be implemented by handoff leg 30
Hydrogen unit 4 is filled by high-pressure hydrogenation unit 7 to the hydrogen of first terminal user 9.
The present invention also provides the method for hydrotreating for being suitable for 70 and 35MPa filling pressure simultaneously, are specifically utilized above-mentioned same
When suitable for 70MPa and 35MPa filling pressure hydrogenation system to terminal user fill hydrogen.
An exemplary embodiment of the present invention, the method for hydrotreating the following steps are included:
A, it is extracted in surge tank 2 using low pressure hydrogen compression unit 3 from interior Hydrogen Unit 1 or the outer hydrogen supply unit 11 of standing
In hydrogen, be filled into after pressurization in low pressure hydrogen storing unit 4 to initial hydrogen pressure；It is extracted using high pressure hydrogen compression unit 5
Hydrogen in low pressure hydrogen storing unit 4 is further filled into high-pressure hydrogen storing unit 6 after pressurization to initial hydrogen pressure.Wherein, low
The initial hydrogen pressure for pressing hydrogen storing unit 4 is 40~45MPa, the initial hydrogen pressure of high-pressure hydrogen storing unit 6 is 80~
87.5MPa。
B, when needing to fill hydrogen to second terminal user 10 through low-voltage hydrogenation unit 8, by low pressure hydrogen storing unit 4 through low
Hydrogenation unit 8 is pressed to fill hydrogen to second terminal user 10, until the Hydrogen Vapor Pressure of second terminal user 10 reaches required value；
When the Hydrogen Vapor Pressure in low pressure hydrogen storing unit 4 is insufficient to allow the Hydrogen Vapor Pressure of second terminal user 10 to reach required value, switching
Start the hydrogen in the extraction surge tank 2 of low pressure hydrogen compression unit 3 and after pressurization directly through low-voltage hydrogenation unit 8 to second
Terminal user 10 fills hydrogen, until the Hydrogen Vapor Pressure of second terminal user 10 reaches required value, wherein second terminal user 10
Hydrogen Vapor Pressure required value be 35MPa；
When needing to fill hydrogen to first terminal user 9 through high-pressure hydrogenation unit 7, by high-pressure hydrogen storing unit 6 through high pressure
Hydrogenation unit 7 fills hydrogen to first terminal user 9, until the Hydrogen Vapor Pressure of first terminal user 9 reaches required value；Work as high pressure
When Hydrogen Vapor Pressure in hydrogen storing unit 6 is insufficient to allow the Hydrogen Vapor Pressure of first terminal user 9 to reach required value, switching starting high pressure
Hydrogen compression unit 5 extracts the hydrogen in low pressure hydrogen storing unit 4 and after pressurization directly through high-pressure hydrogenation unit 7 to first terminal
User 9 fills hydrogen, until the Hydrogen Vapor Pressure of first terminal user 9 reaches required value, wherein the hydrogen of first terminal user 9
Pressure requirements value is 70MPa；
C, when needing the hydrogen make-up into low pressure hydrogen storing unit 4, starting low pressure hydrogen compression unit 3 extracts surge tank 2
In hydrogen in standing in Hydrogen Unit 1 or outer hydrogen supply unit 11, be filled into after pressurization in low pressure hydrogen storing unit 4 restore to
Initial hydrogen pressure；The hydrogen in low pressure hydrogen storing unit 4 is extracted using high pressure hydrogen compression unit 5, is further filled after pressurization
Restore into high pressure hydrogen storing unit 6 to initial hydrogen pressure；
D, circulation progress step B and step C carries out terminal user to add hydrogen.
In addition, when the second control valve 20 on the defeated hydrogen branch 25 of low pressure and the defeated hydrogen branch 26 of the low pressure and high-pressure hydrogen storing branch
It is also connected between 27 junction and is connected and is provided with the first pressure reducing valve 19 and the 7th control valve 18 with outer hydrogen supply unit 11
Hydrogen capacity is more than in the case where using by oneself amounts of hydrogen, from low pressure hydrogen storing unit 4 to outside zero load when being flushed with hydrogen branch and in station
Hydrogen supply unit 11 fills hydrogen, until the Hydrogen Vapor Pressure of outer hydrogen supply unit 11 reaches required value；When in low pressure hydrogen storing unit 4
When Hydrogen Vapor Pressure is insufficient to allow the Hydrogen Vapor Pressure of outer hydrogen supply unit 11 to reach required value, switching starting low pressure hydrogen compression unit 3
It extracts the hydrogen in surge tank 2 and directs out hydrogen supply unit 11 after pressurization and fill hydrogen, until the hydrogen of outer hydrogen supply unit 11
Atmospheric pressure reaches required value.
When junction and the third control of low pressure described on the defeated hydrogen branch 26 of low pressure defeated hydrogen branch 26 and high-pressure hydrogen storing branch 27
When being also connected with the handoff leg for being connected and being provided with the 8th control valve 16 with high-pressure hydrogen transportation branch 28 between valve 17 processed 30 and
In the case where needing to fill hydrogen to first terminal user 9 through high-pressure hydrogenation unit 7, added by low pressure hydrogen storing unit through 4 high pressures
Hydrogen unit 7 fills hydrogen to first terminal user 9, until the Hydrogen Vapor Pressure of first terminal user 9 reaches balance, then switches by height
Hydrogen storing unit 6 is pressed to fill hydrogen to first terminal user 9 through high-pressure hydrogenation unit 7, until the Hydrogen Vapor Pressure of first terminal user 9
Reach required value；It is wanted when the Hydrogen Vapor Pressure in high-pressure hydrogen storing unit 6 is also insufficient to allow the Hydrogen Vapor Pressure of first terminal user 9 to reach
When evaluation, switching starting high pressure hydrogen compression unit 5 extracts the hydrogen in low pressure hydrogen storing unit 4 and after pressurization directly through high pressure
Hydrogenation unit 7 fills hydrogen to first terminal user 9, until the Hydrogen Vapor Pressure of first terminal user 9 reaches required value.
From above structure it is found that high-pressure hydrogen storing unit 6 of the present invention is supplied through high-pressure hydrogenation unit 7 to first terminal user 9
While 70MPa hydrogen, low pressure hydrogen compression unit 3 is not influenced to low pressure hydrogen storing unit 4 and fills 40MPa or more (such as 45MPa)
Hydrogen, do not influence the hydrogen that the outside hydrogen supply unit 11 of low pressure hydrogen storing unit 4 fills 20MPa, nor affect on low pressure hydrogen storing unit
4 supply the hydrogen of 35MPa, low pressure hydrogen compression unit 3 and low pressure hydrogen storage list through low-voltage hydrogenation unit 8 to second terminal user 10
The service efficiency of member 4 is high.
Meanwhile low pressure hydrogen storing unit 4 supplies the hydrogen of 35MPa through low-voltage hydrogenation unit 8 to second terminal user 10, or
The outside hydrogen supply unit 11 of low pressure hydrogen storing unit 4 fill 20MPa hydrogen or low pressure hydrogen storing unit 4 through high-pressure hydrogenation unit 7 to
While one terminal user 9 supplies low pressure hydrogen first, high pressure hydrogen compression unit 5 is not influenced and is filled to high-pressure hydrogen storing unit 6
The service efficiency of the hydrogen of 80MPa or more (such as 87.5MPa), high pressure hydrogen compression unit 5 and high-pressure hydrogen storing unit 6 is high.
When terminal user's hydrogen filling pressure requirements are 70MPa, two-stage hydrogen compression device can put into operation；When terminal is used
When hydrogen filling pressure requirements in family are 35MPa, high pressure hydrogen compression device and high pressure hydrogen storage tank do not put into operation, and only put into operation pressure hydrogen
The equipment such as gas compression device and low pressure hydrogen storage tank, save the energy consumption of hydrogenation stations.
It is next combined with specific embodiments below that the invention will be further described.
The specific structure is shown in FIG. 3 for the present embodiment.Hydrogen through 0.6~3MPa of 1 output of Hydrogen Unit in standing is temporary
In surge tank 2, after low pressure hydrogen compression unit 3 (such as compressor or pump) is pressurized to 40~45MPa, it is stored in low pressure storage
In hydrogen unit 4, the hydrogen of 40~45MPa is further pressurized after the pressurization of high pressure hydrogen compression unit 5 in low pressure hydrogen storing unit 4
To after 80MPa or more (such as 87.5MPa), it is stored in high-pressure hydrogen storing unit 6.Wherein, low pressure hydrogen storing unit 4 is by several specified
The low pressure hydrogen storage bottle that operating pressure is 45MPa forms, and high-pressure hydrogen storing unit 6 is 87.5MPa's by several rated operating pressures
High-pressure hydrogen storing bottle composition.
1, when station, interior hydrogen capacity is more than the personal amounts of hydrogen of hydrogenation stations, needs the zero load for being 20MPa to rated operating pressure
Outer hydrogen supply unit 11 (such as hydrogen long-tube trailer) fills when selling outside hydrogen:
(1) the 9th control valve 21 is closed, and the 9th control valve 3 is stopped transport, and the 7th control valve 18, the second control valve 20 and first subtract
Pressure valve 19 is opened, and is flushed with hydrogen from low pressure hydrogen storing unit 4 to unloaded outer hydrogen supply unit 11, until the Hydrogen Vapor Pressure of outer hydrogen supply unit 11
Reach required value (such as 20MPa)；If the Hydrogen Vapor Pressure in low pressure hydrogen storing unit 4 is insufficient to allow the pressure of outer hydrogen supply unit 11 to reach
Required value then carries out next step movement；
(2) the first control valve 12 is closed, keeps the 7th control valve 18, the second control valve 20 to open, starts pressure hydrogen air pressure
Contracting unit 3, stand in hydrogen in Hydrogen Unit 2 45MPa is pressurized to by low pressure hydrogen compression unit 3 after check-valves 23, successively
Continue to fill hydrogen through the second control valve 20, the first pressure reducing valve 19, the outside hydrogen supply unit 11 of the 7th control valve 18, until outer confession
The Hydrogen Vapor Pressure of hydrogen unit 11 reaches required value (such as 20MPa)；
2, when needing the low-voltage hydrogenation unit 8 for being 35MPa through filling pressure to fill hydrogen to second terminal user 10:
(3) first control valves 12, third control valve 17, the second control valve 20 are opened, and the 9th control valve 21 is closed, low pressure
Hydrogen compression unit 3 is stopped transport, and adds hydrogen to second terminal user 10 through low-voltage hydrogenation unit 8 from low pressure hydrogen storing unit 4, until second
The Hydrogen Vapor Pressure of terminal user 10 reaches required value (such as 35MPa).The step is not influenced by above-mentioned steps (1).If low pressure is stored up
Hydrogen Vapor Pressure in hydrogen unit 4 is insufficient to allow the pressure of second terminal user 10 to reach required value, then carries out next step movement；
(4) the first control valve 12 is closed, keeps third control valve 17, the second control valve 20 to open, starts pressure hydrogen air pressure
Contracting unit 3, extract upstream surge tank 2 in hydrogen pressurization to 45MPa and through low-voltage hydrogenation unit 8 to second terminal user 10 after
Continuous plus hydrogen, until the Hydrogen Vapor Pressure of second terminal user 10 reaches required value (such as 35MPa).The step is not by above-mentioned steps (2)
Influence；
3, when needing the high-pressure hydrogenation unit 7 for being 70MPa through filling pressure to fill hydrogen to first terminal user 9:
(5) the 6th control valve 15 is closed, the first control valve 12, the 8th control valve 16, the second control valve 20, pressure hydrogen are opened
Gas compression unit 3 is stopped transport, and adds hydrogen to first terminal user 9 through high-pressure hydrogenation unit 7 from low pressure hydrogen storing unit 4 first, until the
One terminal user 9 and the Hydrogen Vapor Pressure of low pressure hydrogen storing unit 4 reach balance.The step is not influenced by above-mentioned steps (1), (2)；
(6) the 8th control valve 16 is closed, the 5th control valve 14, the 6th control valve 15 are opened, high pressure hydrogen compression unit 5 stops
Fortune adds hydrogen to first terminal user 9 through high-pressure hydrogenation unit 7 from high-pressure hydrogen storing unit 6, until the hydrogen of first terminal user 9
Pressure reaches required value (such as 70MPa).The step is not influenced by above-mentioned steps (1), (2), (3), (4)；
4, when needing to low pressure hydrogen storage bottle 4 hydrogen make-up of group:
(7) the second control valve 20 is closed, the first control valve 12 is opened, starts low-voltage hydrogenation unit 4, upstream hydrogen is extracted and increases
Be depressed into 45MPa and be filled into low pressure hydrogen storing unit 4, make pressure recovery in low pressure hydrogen storing unit 4 to required value (40~
45MPa).The step is not influenced by above-mentioned steps (6)；
5, when needing to high-pressure hydrogen storing bottle 6 hydrogen make-up of group:
(8) the 6th control valve 15 is closed, the first control valve 12, the 4th control valve 13, the control of the 5th control valve 14, second are opened
Valve 20 processed, start high pressure hydrogen compression unit 5, extract low pressure hydrogen storing unit 4 hydrogen pressurization to 80MPa or more (such as
87.5MPa) and be filled into high-pressure hydrogen storing unit 6, make pressure recovery in high-pressure hydrogen storing unit 6 to required value (80~
87.5MPa).The step is not influenced by above-mentioned steps (1), (3), (5).
6, when stand in hydrogen producer failure or power output be unsatisfactory for requiring, in a manner of hydrogen long-tube trailer 9 be the hydrogenation stations
When hydrogen supply:
(9) the 7th control valves 18 are closed, and the 9th control valve 21, the second pressure reducing valve 22 are opened, and starting low pressure hydrogen compression is single
Member 3 extracts the hydrogen in outer hydrogen supply unit 11 after 22 pressure stabilizing of the second pressure reducing valve, is pressurized to by low pressure hydrogen compression unit 3
45MPa is simultaneously filled into low pressure hydrogen storing unit 4, and the pressure in low pressure hydrogen storing unit 4 is made to reach required value (40~45MPa).It should
The same above-mentioned steps of step function (7).
In conclusion hydrogen manufacturing in the station such as gas renormalizing, methanol decomposition, electrolysis water can be used in hydrogenation stations hydrogen source of the invention
And/or the outer hydrogen supply such as outside long-tube trailer, the hydrogen compression device and two kinds of different pressure levels of two-stage different pressure levels are set
Hydrogen storage bottle group, reduce the quantity of high-pressure hydrogen storing bottle and reduce the risk of hydrogen storage of higher pressures, can effectively realize
The hydrogen filling of 70MPa and 35MPa filling pressure.
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (10)
1. a kind of hydrogenation system for being suitable for 70 and 35MPa filling pressure simultaneously, which is characterized in that the hydrogenation system includes station
Interior Hydrogen Unit, outer hydrogen supply unit, surge tank, low pressure hydrogen compression unit, low pressure hydrogen storing unit, high pressure hydrogen compression unit,
High-pressure hydrogen storing unit, low-voltage hydrogenation unit and high-pressure hydrogenation unit, wherein
Hydrogen Unit and outer hydrogen supply unit are respectively by being provided with the hydrogen supply branch and surge tank phase of hydrogen supply control valve in the station
Even, the surge tank is connected with low pressure hydrogen compression unit and the low pressure hydrogen compression unit is by being provided with the first control
The low pressure hydrogen storage branch of valve is connected with low pressure hydrogen storing unit；
The low pressure hydrogen storing unit passes through the defeated hydrogen branch of the low pressure for being disposed with the second control valve and third control valve and low pressure
Hydrogenation unit is connected, and the defeated hydrogen branch of low pressure is connected with low pressure hydrogen storage branch and the defeated hydrogen branch of the low pressure and low pressure hydrogen storage
The junction of branch is between low pressure hydrogen compression unit and the first control valve；
The height being connected with high-pressure hydrogen storing unit is connected between the second control valve and third control valve of the defeated hydrogen branch of low pressure
Hydrogen storage branch is pressed, the high-pressure hydrogen storing branch road is disposed with the 4th control valve, High Pressure Hydrogen air pressure along hydrogen flow direction
Contracting unit and the 5th control valve；
The high-pressure hydrogen storing unit is connected by being provided with the high-pressure hydrogen transportation branch of the 6th control valve with high-pressure hydrogenation unit, described
High-pressure hydrogen transportation branch is connected with high-pressure hydrogen storing branch and the junction of the high-pressure hydrogen transportation branch and high-pressure hydrogen storing branch is located at
Between 5th control valve and high pressure hydrogen compression unit.
2. being suitable for the hydrogenation system of 70 and 35MPa filling pressure simultaneously according to claim 1, which is characterized in that described
It is also connected between defeated hydrogen branch the second control valve of road of low pressure and the defeated hydrogen branch of the low pressure and the junction of high-pressure hydrogen storing branch
What is be connected with outer hydrogen supply unit is flushed with hydrogen branch, and the branch road that is flushed with hydrogen is provided with the first pressure reducing valve and the 7th control valve.
3. being suitable for the hydrogenation system of 70 and 35MPa filling pressure simultaneously according to claim 1, which is characterized in that described
It is also connected between the defeated hydrogen branch of the defeated hydrogen branch road low pressure of low pressure and the junction and third control valve of high-pressure hydrogen storing branch
The handoff leg being connected with high-pressure hydrogen transportation branch is provided with the 8th control valve in the handoff leg.
4. being suitable for the hydrogenation system of 70 and 35MPa filling pressure simultaneously according to claim 1, which is characterized in that described
Hydrogen Unit is interior hydrogen manufacturing equipment for purifying of standing in standing, the hydrogen supply branch road setting that Hydrogen Unit is connected with surge tank in the station
Hydrogen supply control valve is check-valves.
5. being suitable for the hydrogenation system of 70 and 35MPa filling pressure simultaneously according to claim 1, which is characterized in that described
Outer hydrogen supply unit is hydrogen long-tube trailer, the hydrogen supply control for the hydrogen supply branch road setting that the outer hydrogen supply unit is connected with surge tank
Valve includes the second pressure reducing valve and the 9th control valve.
6. being suitable for the hydrogenation system of 70 and 35MPa filling pressure simultaneously according to claim 1, which is characterized in that described
Low pressure hydrogen storing unit is made of the low pressure hydrogen storage bottle that several rated operating pressures are 45MPa, first in the low pressure hydrogen storage bottle
Beginning Hydrogen Vapor Pressure is 40~45MPa, and the filling pressure of the low-voltage hydrogenation unit is 35MPa；If the high-pressure hydrogen storing unit by
The high-pressure hydrogen storing bottle that dry rated operating pressure is 87.5MPa forms, and the initial hydrogen pressure in the high-pressure hydrogen storing bottle is 80
~87.5MPa, the filling pressure of the high-pressure hydrogenation unit are 70MPa.
7. a kind of method of hydrotreating for being suitable for 70 and 35MPa filling pressure simultaneously, which is characterized in that using in claim 1 to 6
The hydrogenation system for being suitable for 70MPa and 35MPa filling pressure described in any one simultaneously fills hydrogen to terminal user.
8. being suitable for the method for hydrotreating of 70 and 35MPa filling pressure simultaneously according to claim 7, which is characterized in that described
Method of hydrotreating the following steps are included:
A, the hydrogen in surge tank in stand interior Hydrogen Unit or outer hydrogen supply unit is extracted using low pressure hydrogen compression unit,
It is filled into after pressurization in low pressure hydrogen storing unit to initial hydrogen pressure；Low pressure hydrogen storing unit is extracted using high pressure hydrogen compression unit
In hydrogen, further pressurization after be filled into high-pressure hydrogen storing unit to initial hydrogen pressure；
B, when needing to fill hydrogen to second terminal user through low-voltage hydrogenation unit, by low pressure hydrogen storing unit through low-voltage hydrogenation list
Member fills hydrogen to second terminal user, until the Hydrogen Vapor Pressure of second terminal user reaches required value；When low pressure hydrogen storing unit
In Hydrogen Vapor Pressure when the Hydrogen Vapor Pressure of second terminal user being insufficient to allow to reach required value, switching starting low pressure hydrogen compression is single
Member extracts the hydrogen in surge tank and directly fills hydrogen to second terminal user through low-voltage hydrogenation unit after pressurization, until the
The Hydrogen Vapor Pressure of two terminal users reaches required value, wherein the Hydrogen Vapor Pressure required value of the second terminal user is 35MPa；
When needing to fill hydrogen to first terminal user through high-pressure hydrogenation unit, by high-pressure hydrogen storing unit through high-pressure hydrogenation unit
Hydrogen is filled to first terminal user, until the Hydrogen Vapor Pressure of first terminal user reaches required value；When in high-pressure hydrogen storing unit
Hydrogen Vapor Pressure when the Hydrogen Vapor Pressure of first terminal user being insufficient to allow to reach required value, switching starting high pressure hydrogen compression unit
It extracts the hydrogen in low pressure hydrogen storing unit and directly fills hydrogen to first terminal user through high-pressure hydrogenation unit after pressurization, directly
Hydrogen Vapor Pressure to first terminal user reaches required value, wherein the Hydrogen Vapor Pressure required value of the first terminal user is
70MPa；
C, when needing the hydrogen make-up into low pressure hydrogen storing unit, starting low pressure hydrogen compression unit extract surge tank in from
Hydrogen in standing in Hydrogen Unit or outer hydrogen supply unit, is filled into low pressure hydrogen storing unit after pressurization and restores to initial hydrogen pressure
Power；The hydrogen in low pressure hydrogen storing unit is extracted using high pressure hydrogen compression unit, is further filled into high-pressure hydrogen storing list after pressurization
Restore in member to initial hydrogen pressure；
D, circulation progress step B and step C carries out terminal user to add hydrogen.
9. being suitable for the method for hydrotreating of 70 and 35MPa filling pressure simultaneously according to claim 8, which is characterized in that work as institute
It states and is also connected between defeated hydrogen branch the second control valve of road of low pressure and the defeated hydrogen branch of the low pressure and the junction of high-pressure hydrogen storing branch
Have be connected with outer hydrogen supply unit and be provided with the first pressure reducing valve and the 7th control valve when being flushed with hydrogen branch and the hydrogen manufacturing energy in standing
In the case that power is more than personal amounts of hydrogen,
Hydrogen is filled from low pressure hydrogen storing unit to unloaded outer hydrogen supply unit, until the Hydrogen Vapor Pressure of outer hydrogen supply unit reaches requirement
Value；When the Hydrogen Vapor Pressure in low pressure hydrogen storing unit is insufficient to allow the Hydrogen Vapor Pressure of outer hydrogen supply unit to reach required value, switching is opened
Dynamic low pressure hydrogen compression unit extracts the hydrogen in surge tank and directs out hydrogen supply unit filling hydrogen after pressurization, until outer
The Hydrogen Vapor Pressure of hydrogen supply unit reaches required value.
10. being suitable for the method for hydrotreating of 70 and 35MPa filling pressure simultaneously according to claim 8, which is characterized in that work as institute
It states and is also connected between the defeated hydrogen branch of the defeated hydrogen branch road low pressure of low pressure and the junction and third control valve of high-pressure hydrogen storing branch
Have when the handoff leg for being connected and being provided with the 8th control valve with high-pressure hydrogen transportation branch and need through high-pressure hydrogenation unit to
In the case that first terminal user fills hydrogen,
Hydrogen is filled to first terminal user through high-pressure hydrogenation unit from low pressure hydrogen storing unit, until the hydrogen of first terminal user
Pressure reaches balance, then switches from high-pressure hydrogen storing unit and fill hydrogen to first terminal user through high-pressure hydrogenation unit, until the
The Hydrogen Vapor Pressure of one terminal user reaches required value；When the Hydrogen Vapor Pressure in high-pressure hydrogen storing unit is also insufficient to allow first terminal to use
When the Hydrogen Vapor Pressure at family reaches required value, switching starting high pressure hydrogen compression unit extract low pressure hydrogen storing unit in hydrogen and
Hydrogen directly is filled to first terminal user through high-pressure hydrogenation unit after pressurization, until the Hydrogen Vapor Pressure of first terminal user reaches
Required value.
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| CN110425416B (en) * | 2019-08-15 | 2023-08-15 | 浙江浙能技术研究院有限公司 | Small-scale low-energy-consumption ladder hydrogen storage system and method |
| CN110425416A (en) * | 2019-08-15 | 2019-11-08 | 浙江浙能技术研究院有限公司 | A kind of small-scale low energy consumption ladder hydrogen storage system and method |
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| CN110594579B (en) * | 2019-09-10 | 2021-12-21 | 安泰环境工程技术有限公司 | Multifunctional hydrogen refueling station hydrogen fuel refueling system |
| CN111102468A (en) * | 2019-12-06 | 2020-05-05 | 北京航天试验技术研究所 | Hydrogenation system for adapting to APRR change and hydrogenation machine with same |
| CN112303483A (en) * | 2019-12-13 | 2021-02-02 | 安瑞科(廊坊)能源装备集成有限公司 | Air leakage device and air leakage method of hydrogen trailer |
| CN112413397A (en) * | 2020-11-18 | 2021-02-26 | 西安交通大学 | Pressurizing and filling device for hydrogenation station, and system and method using device |
| CN112413397B (en) * | 2020-11-18 | 2021-11-23 | 西安交通大学 | Pressurizing and filling device for hydrogenation station, and system and method using device |
| WO2022135110A1 (en) * | 2020-12-25 | 2022-06-30 | 江苏国富氢能技术装备股份有限公司 | Mixed pressurization multistage filling hydrogenation device |
| CN113513700A (en) * | 2021-04-08 | 2021-10-19 | 上海氢枫能源技术有限公司 | Hydrogen charging system and method |
| CN113653937A (en) * | 2021-07-23 | 2021-11-16 | 上海氢枫能源技术有限公司 | Efficient hydrogenation method of comprehensive hydrogenation station |
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| CN113375047A (en) * | 2021-08-11 | 2021-09-10 | 河南氢枫能源技术有限公司 | Hydrogen station with double compression systems operating and operation method thereof |
| CN114484266A (en) * | 2022-01-27 | 2022-05-13 | 氢华能源技术(武汉)有限公司 | Movable hydrogenation station |
| CN114893714A (en) * | 2022-04-24 | 2022-08-12 | 正星氢电科技郑州有限公司 | Single-metering 35MPa and 70MPa double-gun hydrogen filling system and control method thereof |
| CN114893714B (en) * | 2022-04-24 | 2023-11-21 | 正星氢电科技郑州有限公司 | Single-metering 35MPa and 70MPa double-gun hydrogen filling system and control method thereof |
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