CN208332856U - Purification device in liquefaction of hydrogen device - Google Patents
Purification device in liquefaction of hydrogen device Download PDFInfo
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- CN208332856U CN208332856U CN201820801721.6U CN201820801721U CN208332856U CN 208332856 U CN208332856 U CN 208332856U CN 201820801721 U CN201820801721 U CN 201820801721U CN 208332856 U CN208332856 U CN 208332856U
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Abstract
The utility model discloses the purification devices in a kind of liquefaction of hydrogen device, it include: the first purification device, the second purification device being set in liquefaction of hydrogen ice chest and third purification device, the liquefaction of hydrogen ice chest includes: heat exchanger and reactor, is provided with the first hydrogen paths and the first cryogenic gaseous hydrogen channel in a heat exchanger；It is provided with the second hydrogen paths, just secondary conversion channel, the second cryogenic gaseous hydrogen channel and liquid hydrogen channel in the reactor；Raw hydrogen is successively connected with the first purification device, the first hydrogen paths, the second purification device, the second hydrogen paths, just secondary conversion channel, liquid hydrogen channel, liquid hydrogen liquefaction ice chest with liquid hydrogen storage tank by the first connecting pipe；Boil-off gas outlet on liquid hydrogen storage tank is successively connected with the first cryogenic gaseous hydrogen channel in the second compressor set, heat exchanger, the second cryogenic gaseous hydrogen channel in reactor, third purification device by the second connecting pipe.The device good purification, it is safe and reliable.
Description
Technical field
The utility model relates to the purification devices in liquefaction of hydrogen technology more particularly to a kind of liquefaction of hydrogen device.
Background technique
With the development of industry with the raising of people 's material life level, the demand of the energy is also growing day by day.Due to coal,
The fossil energies such as petroleum inevitably pollute environment when in use, along with its reserves is limited, facing mankind exploitation it is high
The difficult challenge of effect, clean secondary energy sources, thus it is extremely urgent to find reproducible green energy resource.Hydrogen is used as can be from a variety of ways
The ideal energy carrier that diameter obtains, is important bridge one of of the fossil energy to renewable energy transition, will be terminal energy sources benefit
With the new important form of offer.
The core of liquefaction of hydrogen technology is the liquefaction portion of hydrogen, and the critical-temperature of hydrogen and conversion temperature are low, and gasification is latent
Heat is small, and theoretical minimum liquefaction function is highest in all gas.Since the condensing temperature of hydrogen is very low, so only will
Hydrogen is pre-cooling to certain temperature hereinafter, throttling expansion could generate cold effect again.Liquefaction process meeting of this characteristic to hydrogen
Generate certain difficulty: under liquid hydrogen temperature, in addition to helium, every other gaseous impurity is cured, and solidification impurity may
Each gas and fluid passage, pipeline, especially throttle point in liquefaction of hydrogen device can be blocked and be easier blockage phenomenon, pole
Easily set off an explosion, so, raw hydrogen must be purified strictly.
Utility model content
Liquefaction of hydrogen device includes: liquefaction of hydrogen ice chest and liquid hydrogen liquefaction ice chest, the Gaseous Hydrogen after first class purification process
It is introduced into liquefaction of hydrogen ice chest and carries out pre-cooling and the just secondary conversion of Gaseous Hydrogen, then enter back into liquid hydrogen liquefaction ice chest and be pre-chilled
And the just secondary conversion of liquified hydrogen, it finally obtains liquid hydrogen and is stored in liquid hydrogen storage tank.It is influenced, is stored in by factors such as external temperatures
Liquid hydrogen in liquid hydrogen storage tank unavoidably has partial gasification into cryogenic gaseous hydrogen, if the cryogenic gaseous hydrogen after gasification is direct
It is released in external environment, not only wastes energy, but also can have security risk, and directly burn the cryogenic gaseous hydrogen,
It is also a kind of energy dissipation phenomenon.Thus cryogenic gaseous hydrogen is recycled: cryogenic gaseous hydrogen is re-fed into hydrogen liquid
In change ice chest, liquid hydrogen liquefaction ice chest, cooling capacity is provided for liquefaction of hydrogen ice chest and liquid hydrogen liquefaction ice chest.It is carried out to cryogenic gaseous hydrogen
Inevitably there is impurity during recovery processing, thus needs to carry out purified treatment to the part cryogenic gaseous hydrogen.
The technical issues of solving needed for the utility model is: providing a kind of good purification, safe and reliable hydrogen
Purification device in liquefying plant.
To solve the above problems, the technical solution adopted in the utility model is: the purification in the liquefaction of hydrogen device
Device includes: the first purification device, the second purification device being set in liquefaction of hydrogen ice chest and third purification device, feed hydrogen
Gas by the first connecting pipe successively with the first compressor set, the first purification device, liquefaction of hydrogen ice chest, liquid hydrogen liquefy ice chest,
Liquid hydrogen storage tank is connected；The liquefaction of hydrogen ice chest includes: heat exchanger and reactor, is provided with first in a heat exchanger
Hydrogen paths and the first cryogenic gaseous hydrogen channel, hydrogen paths and the first cryogenic gaseous hydrogen channel are mutually indepedent；In the reactor
It is provided with the second hydrogen paths, just secondary conversion channel, the second cryogenic gaseous hydrogen channel and liquid hydrogen channel, the second hydrogen paths, just
Secondary conversion channel, the second cryogenic gaseous hydrogen channel and liquid hydrogen channel are mutually indepedent；Raw hydrogen passes through the first connecting pipe successively
With the first hydrogen paths in the first purification device, heat exchanger, the second hydrogen paths in reactor, the second purification device,
Just secondary conversion channel in reactor, the liquid hydrogen channel in reactor, liquid hydrogen liquefaction ice chest are connected with liquid hydrogen storage tank；In liquid hydrogen
Boil-off gas outlet is provided on storage tank, the cryogenic gaseous hydrogen to gasify in liquid hydrogen storage tank passes through after boil-off gas outlet output
Second connecting pipe successively with the first cryogenic gaseous hydrogen channel in the second compressor set, heat exchanger, second in reactor
Cryogenic gaseous hydrogen channel, third purification device are connected, and provide cooling capacity for heat exchanger and reactor.
Further, the purification device in liquefaction of hydrogen device above-mentioned, wherein first purification device includes:
First compressor set, absolute oil absorber, catalytic refining device, drying unit and the absorber that high-boiling-point impurity can be removed；Raw material
Hydrogen is successively clear with the first compressor set, absolute oil absorber, catalytic refining device, drying unit, energy by the first connecting pipe
Except the first hydrogen paths in the absorber of high-boiling-point impurity, heat exchanger, the second hydrogen paths in reactor, the second purification
Just secondary conversion channel in device, reactor, the liquid hydrogen channel in reactor, liquid hydrogen liquefaction ice chest are connected with liquid hydrogen storage tank.
Further, the purification device in liquefaction of hydrogen device above-mentioned, wherein the adsorbent of the absolute oil absorber
For active carbon；For the catalyst that catalytic refining uses for metallic catalyst, metallic catalyst is one of platinum, nickel, palladium；To gaseous state
The carrier surface that hydrogen carries out catalytic refining is extended surface, and metallic catalyst is uniformly applied on the extended surface of the carrier；Energy
The adsorbent for removing the absorber of high-boiling-point impurity is the energy regenerated pore zeolite of heating power, and passing through can the regenerated pore zeolite of heating power
Drying and processing is carried out to Gaseous Hydrogen.
Further, the purification device in liquefaction of hydrogen device above-mentioned, wherein second purification device is first
Cryogenic unit converts absorber, and the first cryogenic unit conversion absorber is made of the first absorber and the second absorber,
Adsorbent in first absorber and the second absorber can heating power regeneration；The double cell translation absorber of first low temperature is normal
When work, if the Gaseous Hydrogen after first class purification, precooling treatment carries out adsorption treatment through the first absorber, the second absorber heating power
Regeneration；If the Gaseous Hydrogen after first class purification, precooling treatment carries out adsorption treatment through the second absorber, the first absorber heating power is again
It is raw.
Further, the purification device in liquefaction of hydrogen device above-mentioned, wherein turn being located at the double unit of the first low temperature
It changes in the first connecting pipe of absorber inlet port and is provided with first filter.
Further, the purification device in liquefaction of hydrogen device above-mentioned, wherein the first filter is mechanical mistake
Filter, the filtering accuracy of the metal filtering core in mechanical filter are no more than 40 microns, and mechanical filter can by heating or
Pre-cooling Mode regeneration carries out self purification.
Further, the purification device in liquefaction of hydrogen device above-mentioned, wherein the third purification device is third
Absorber.
Further, the purification device in liquefaction of hydrogen device above-mentioned, wherein the third purification device is second
Cryogenic unit converts absorber, and the second cryogenic unit conversion absorber is made of third absorber and the 4th absorber, and third is inhaled
Adsorbent in adnexa and the 4th absorber can heating power regeneration；The double cell translation absorber of second low temperature is working normally
When, if carry out adsorption treatment through third absorber from the cryogenic gaseous hydrogen that reactor exports, the regeneration of the 4th absorber heating power；If
When the cryogenic gaseous hydrogen exported from reactor carries out adsorption treatment through the 4th absorber, the regeneration of third absorber heating power.
Further, the purification device in liquefaction of hydrogen device above-mentioned, wherein turn being located at the double unit of the second low temperature
It changes in the second connecting pipe of absorber inlet port and the second filter is set.
Further, the purification device in liquefaction of hydrogen device above-mentioned, wherein second filter is mechanical mistake
Filter, the filtering accuracy of the metal filtering core in mechanical filter are no more than 40 microns, and mechanical filter can by heating or
Pre-cooling Mode regeneration carries out self purification.
The beneficial effects of the utility model are: the good purification of the purification device in the liquefaction of hydrogen device, is liquefying
It is safe and reliable in the process there is no each gas and fluid passage, pipe phenomenon in solidification impurity blocking liquefaction of hydrogen device.
Detailed description of the invention
Fig. 1 is the hydrogen purification process flow diagram during liquefaction of hydrogen.
Fig. 2 is the structural schematic diagram of the purification device in liquefaction of hydrogen device described in the utility model.
Fig. 3 is another structural schematic diagram of purification device.
Fig. 4 is the partial enlargement structural representation of liquefaction of hydrogen ice chest in purification device in Fig. 3.
Specific embodiment
With reference to the accompanying drawing and preferred embodiment is described in further detail technical solution described in the utility model.
Purification device in liquefaction of hydrogen device of the present invention belongs to a part of liquefaction of hydrogen device, is more shape
As, thorough description purification device, it is easy to understand, first describes the overall structure of liquefaction of hydrogen device, liquefaction of hydrogen device here
It include: liquefaction of hydrogen ice chest 101 and liquid hydrogen liquefaction ice chest, referring to figure 1 and figure 2, the Gaseous Hydrogen after first class purification process
Be introduced into liquefaction of hydrogen ice chest 101 carry out pre-cooling and the just secondary conversion of Gaseous Hydrogen, then enter back into liquid hydrogen liquefaction ice chest 101 in into
Row pre-cooling and the just secondary conversion of liquified hydrogen, finally obtain liquid hydrogen and are stored in liquid hydrogen storage tank.It is influenced by factors such as external temperatures,
The liquid hydrogen being stored in liquid hydrogen storage tank unavoidably has partial gasification into cryogenic gaseous hydrogen, if by the cryogenic gaseous after gasification
Hydrogen is directly released in external environment, not only wastes energy, but also can have security risk, and directly burns the low temperature gas
State hydrogen and a kind of energy dissipation phenomenon.Thus cryogenic gaseous hydrogen is recycled: cryogenic gaseous hydrogen is re-fed into hydrogen
In gas liquefaction ice chest 101, liquid hydrogen liquefaction ice chest, cooling capacity is provided for liquefaction of hydrogen ice chest 101 and liquid hydrogen liquefaction ice chest, in this way can
Cryogenic gaseous hydrogen is recycled, saves energy, moreover it is possible to improve security performance.In the process being recycled to cryogenic gaseous hydrogen
In inevitably there is impurity, thus need to carry out purified treatment to the part cryogenic gaseous hydrogen.
As shown in Fig. 2, the structure of purification device described in the present embodiment are as follows: including the first purification device, be set to hydrogen
The second purification device and third purification device in gas liquefaction ice chest 101, raw hydrogen is by the first connecting pipe 3 successively with the
One compressor set, the first purification device, liquefaction of hydrogen ice chest 101, liquid hydrogen liquefaction ice chest, liquid hydrogen storage tank are connected.The hydrogen
Gas liquefaction ice chest 101 includes: heat exchanger 1 and reactor 2, and the first hydrogen paths 11 and first are provided in heat exchanger 1
Cryogenic gaseous hydrogen channel 12, hydrogen paths 11 and the first cryogenic gaseous hydrogen channel 12 are mutually indepedent, non-interference.In reactor 2
In be provided with the second hydrogen paths 21, just secondary conversion channel 22, the second cryogenic gaseous hydrogen channel 24 and liquid hydrogen channel 23, the second hydrogen
Gas channel 21, just secondary conversion channel 22, the second cryogenic gaseous hydrogen channel 24 and liquid hydrogen channel 23 are mutually indepedent, non-interference.It is former
Expect hydrogen by the first connecting pipe 3 successively with the first hydrogen paths 11, the reactor 2 in the first purification device, heat exchanger 1
In the second hydrogen paths 21, the second purification device, the just secondary conversion channel 22 in reactor 2, the liquid hydrogen channel in reactor 2
23, liquid hydrogen liquefaction ice chest is connected with liquid hydrogen storage tank.It is provided with boil-off gas outlet on liquid hydrogen storage tank, gasifies in liquid hydrogen storage tank
Cryogenic gaseous hydrogen from boil-off gas outlet output after, by the second connecting pipe 4 successively with the second compressor set, heat exchanger
The second cryogenic gaseous hydrogen channel 24 in the first cryogenic gaseous hydrogen channel 12, reactor 2, third purification device in 1 are connected,
Cooling capacity is provided for heat exchanger 1 and reactor 2.
As depicted in figs. 1 and 2, the first purification device described in the present embodiment includes: the first compressor set, absolute oil absorption
Device, catalytic refining device, drying unit and the absorber that high-boiling-point impurity can be removed；Wherein, the adsorbent in absolute oil absorber
For active carbon, since active carbon can not regenerate, thus need to regularly replace active carbon.Catalytic refining device urges the catalysis of middle use
Agent is metallic catalyst, and metallic catalyst is one of platinum, nickel, palladium, and usually the carrier surface for carrying out catalytic refining is arranged
Metallic catalyst is uniformly smeared at extended surface, and on the extended surface.Pore zeolite, pore are provided in drying unit
Zeolite can heat regeneration, by can the regenerated pore zeolite of heating power to Gaseous Hydrogen carry out drying and processing, wherein to pore zeolite
Heating method can reduce security risk using indirect Electric heatings such as heat carriers in this way.Raw hydrogen passes through the
One connecting pipe 3 successively with the first compressor set, absolute oil absorber, catalytic refining device, drying unit, to remove higher boiling miscellaneous
Absorber, the first hydrogen paths 11 in heat exchanger 1, the second hydrogen paths 21, second in reactor 2 of matter purify dress
Set, the just secondary conversion channel 22 in reactor 2, the liquid hydrogen channel 23 in reactor 2, liquid hydrogen liquefaction ice chest be connected with liquid hydrogen storage tank
It connects.
Second purification device described in the present embodiment is that the first cryogenic unit converts absorber, such as Fig. 2, Fig. 3 and Fig. 4 institute
Showing, the conversion absorber of the first cryogenic unit described in the present embodiment is made of the first absorber 301 and the second absorber 302,
Adsorbent in first absorber 301 and the second absorber 302 can heating power regeneration；First absorber 301 and the second absorber
302 can remove low boiling impurity such as N2, CO, and to high-boiling-point impurity fine purifying.First absorber 301 and the second absorber
Adsorbent can be using the energy regenerated pore zeolite of heating power in 302.The double cell translation absorber of first low temperature is working normally
When, if the Gaseous Hydrogen after first class purification, precooling treatment carries out adsorption treatment through the first absorber 301,302 heat of the second absorber
Power regeneration；If the Gaseous Hydrogen after first class purification, precooling treatment carries out adsorption treatment through the second absorber 302, the first absorber
The regeneration of 301 heating power.First absorber 301 and the second absorber 302 can be using the tube-in-tube structures of supply heat carrier, in order to improve
Thermal vacuum regeneration can be used, such as using independent in the regeneration intensity of first absorber 301 and the adsorbent in the second absorber 302
High vacuum shield or multi-layer vacuum shielding insulation shield.It in actual use, is the first absorber 301 and second of guarantee
The influence of adsorbent in absorber 302 not sorbent suspension mechanical damage substance usually turns being located at the double unit of the first low temperature
Setting first filter (not shown) in the first connecting pipe 3 of absorber inlet port is changed, raw hydrogen passes through first
Connecting pipe 3 successively with the first compressor set, absolute oil absorber, catalytic refining device, drying unit, high-boiling-point impurity can be removed
Absorber, the first hydrogen paths 11 in heat exchanger 1, the second hydrogen paths 21 in reactor 2, first filter,
Just secondary conversion channel 22, the liquid hydrogen channel 23 in reactor 2, liquid hydrogen in the double cell translation absorber of one low temperature, reactor 2
Liquefaction ice chest is connected with liquid hydrogen storage tank.First filter is mechanical filter, the filtering of the metal filtering core in mechanical filter
Precision is no more than 40 microns, and the filter core that filtering accuracy is no more than 10 microns generally can also be used.Mechanical filter can be by adding
Temperature/Pre-cooling Mode regeneration carries out self purification.
As shown in figure 3, third purification device described in the present embodiment is third absorber 303.Certainly, it is actually using
In the process, the double cell translation absorber of the second low temperature can also be used to substitute third absorber 303, the second low temperature list
Member conversion absorber is made of third absorber 303 and the 4th absorber 304, in third absorber 303 and the 4th absorber 304
Adsorbent can heating power regeneration；Third absorber 303 and the 4th absorber 304 can remove low boiling impurity such as N2, CO, and it is right
High-boiling-point impurity fine purifying.Adsorbent can be regenerated thin using energy heating power in third absorber 303 and the 4th absorber 304
Hole zeolite.The double cell translation absorber of second low temperature in normal work, if the cryogenic gaseous hydrogen exported from reactor 2 is through the
When three absorbers 303 carry out adsorption treatment, the regeneration of 304 heating power of the 4th absorber；If the cryogenic gaseous hydrogen warp exported from reactor 2
When 4th absorber 304 carries out adsorption treatment, the regeneration of 303 heating power of third absorber.Third absorber 303 and the 4th absorber
304 can be using the tube-in-tube structure of supply heat carrier, in order to improve the absorption in third absorber 303 and the 4th absorber 304
The regeneration intensity of agent can be used thermal vacuum regeneration, such as use independent high vacuum shield or multi-layer vacuum shielding insulation shield.?
In actual use, to guarantee the not sorbent suspension mechanical damage of the adsorbent in third absorber 303 and the 4th absorber 304
The influence of substance is usually arranged in the second connecting pipe 4 for being located at the double cell translation absorber inlet port of the second low temperature
Second filter (not shown), the second filter are mechanical filter, the filtering essence of the metal filtering core in mechanical filter
Degree is no more than 40 microns, and the filter core that filtering accuracy is no more than 10 microns generally can also be used.Mechanical filter can by heating/
Pre-cooling Mode regeneration carries out self purification.
First compressor set described in the present embodiment includes: the first low pressure compressor and the first high pressure compressor, wherein
First low pressure compressor can use low pressure spiral Charge Compression machine or low pressure stem piston compound compressor, the first high pressure compressor
High pressure stem piston compound compressor can be used.Second compressor set includes: the second low pressure compressor and the second high pressure
Compressor, wherein the second low pressure compressor can use low pressure spiral Charge Compression machine or low pressure stem piston compound compressor, the
Two high pressure compressors can use high pressure stem piston compound compressor.
Specific step is as follows for the purification process of purification device in the mating liquefaction of hydrogen device:
(1) first class purification process is carried out to hydrogen: raw hydrogen is compressed into the Gaseous Hydrogen with pressure, then by net
Oily absorber adsorbs the oil in Gaseous Hydrogen, and volume content oily in Gaseous Hydrogen is made to be no more than 10ppbV；Then to gaseous state
Hydrogen carries out the oxygen impurities in catalytic refining removal Gaseous Hydrogen, and the volume content of oxygen impurities in Gaseous Hydrogen is made to be no more than 2ppbV；
Then drying and processing is carried out to Gaseous Hydrogen, so that the volume content of moisture in Gaseous Hydrogen is no more than 1ppmV, is obtained after drying and processing
Gaseous Hydrogen temperature is controlled in -100 DEG C~-70 DEG C solidifying dew-point temperatures；Then by the way that the absorber of high-boiling-point impurity can be removed to gas
CO in state hydrogen2、H2S and high-boiling-point impurity are adsorbed, and CO in Gaseous Hydrogen is made2、H2The total volume content of S and high-boiling-point impurity
No more than 1ppmV.
The specific compression process that raw hydrogen is compressed into the Gaseous Hydrogen with pressure is as follows: raw hydrogen is through the first low pressure
Compressor compresses at 0.29 ± 0.029MPa of pressure Gaseous Hydrogen, then through the first high pressure compressor be compressed into pressure be 2.5 ±
Then the Gaseous Hydrogen of 0.25MPa carries out first class purification process to the Gaseous Hydrogen that pressure is 2.5 ± 0.25MPa.Described first is low
Pressure compressor can be adopted using low pressure spiral Charge Compression machine or low pressure stem piston compound compressor, the first high pressure compressor
With high pressure stem piston compound compressor.
(2) carry out secondary purification processing to Gaseous Hydrogen: the Gaseous Hydrogen after first class purification process enters liquefaction of hydrogen ice chest
It is pre-chilled in heat exchanger 1 in 101, is converted subsequently into the first cryogenic unit and carry out secondary purification processing in absorber,
Through secondary purification treated Gaseous Hydrogen the enters progress just secondary conversion of Gaseous Hydrogen in the reactor 2 in liquefaction of hydrogen ice chest 101, so
After enter back into liquid hydrogen liquefaction ice chest in carry out the just secondary conversion of liquified hydrogen, obtain liquid hydrogen and liquid hydrogen be stored in liquid hydrogen storage tank.Institute
The the first cryogenic unit conversion absorber stated is made of the first absorber 301 and the second absorber 302,301 He of the first absorber
Adsorbent in second absorber 302 can heating power regeneration；Gaseous Hydrogen after first class purification, precooling treatment is through the first absorber
When 301 progress adsorption treatment, the regeneration of 302 heating power of the second absorber；Gaseous Hydrogen after first class purification, precooling treatment is through the second absorption
When device 302 carries out adsorption treatment, the regeneration of 301 heating power of the first absorber.
First absorber 301 and the second absorber 302 can remove low boiling impurity such as N2, CO, and to high-boiling-point impurity essence
Fine cleaning.Adsorbent can be using the energy regenerated pore zeolite of heating power in first absorber 301 and the second absorber 302.First
The double cell translation absorber of low temperature in normal work, if Gaseous Hydrogen after first class purification, pre-cooling through the first absorber 301 into
When row adsorption treatment, the regeneration of 302 heating power of the second absorber；If Gaseous Hydrogen after first class purification, pre-cooling through the second absorber 302 into
When row adsorption treatment, the regeneration of 301 heating power of the first absorber.First absorber 301 and the second absorber 302 can be using supply warm
The tube-in-tube structure of carrier can adopt to improve the regeneration intensity of the adsorbent in the first absorber 301 and the second absorber 302
It is regenerated with thermal vacuum, such as uses independent high vacuum shield or multi-layer vacuum shielding insulation shield.In actual use, it is
The influence for guaranteeing adsorbent in the first absorber 301 and the second absorber 302 not sorbent suspension mechanical damage substance, usually exists
First mechanical filter (figure is set in the first connecting pipe 3 of the double cell translation absorber inlet port of the first low temperature
In be not shown), the filtering accuracy of the metal filtering core in the first mechanical filter is no more than 40 microns, and filtering essence generally can also be used
Degree is no more than 10 microns of filter core.First mechanical filter can carry out self only by heating/Pre-cooling Mode regeneration
Change.
(3) purified treatment is carried out to cryogenic gaseous hydrogen: by the cryogenic gaseous hydrogen compressed to gasify in liquid hydrogen storage tank at pressure
The cryogenic gaseous hydrogen of power, the cryogenic gaseous hydrogen with pressure is successively into the heat exchanger 1 in liquefaction of hydrogen ice chest 101 excessively, reaction
It is exported after device 2, provides cooling capacity for heat exchanger 1 and reactor 2, the low temperature liquid hydrogen exported from reactor 2 enters third absorption
Adsorption treatment is carried out in device 303.
Since the amount of impurities in cryogenic gaseous hydrogen is limited, so being able to satisfy use using a third absorber 303
Demand, in regeneration, the second connecting pipe 4 at third absorber 303 disconnects third absorber 303, and third absorber 303 is again
After life, the second connecting pipe 4 at third absorber is just unblocked.Certainly, in actual use, may be used
Single third absorber 303 is replaced using the double cell translation absorber of the second low temperature, which turns
It changes absorber to be made of third absorber 303 and the 4th absorber 304, be inhaled in third absorber 3032 and the 4th absorber 304
Attached dose is the energy regenerated pore zeolite of heating power.The double cell translation absorber of second low temperature in normal work, if third adsorb
Device 303 works normally, then 304 heating power of the 4th absorber regenerates；Conversely, if the 4th absorber 304 works normally, third absorption
The regeneration of 303 heating power of device.Third absorber 303 and the 4th absorber 304 can be using the tube-in-tube structures of supply heat carrier, in order to mention
Thermal vacuum regeneration can be used, such as using only in the regeneration intensity of high third absorber 303 and the adsorbent in the 4th absorber 304
Vertical high vacuum shield or multi-layer vacuum shielding insulation shield.In actual use, to guarantee third absorber 303 and the
The influence of adsorbent in four absorbers 304 not sorbent suspension mechanical damage substance, is usually being located at the double unit of the second low temperature
It converts and the second mechanical filter (not shown) is set in the second connecting pipe 4 of absorber inlet port, the second mechanical mistake
The filtering accuracy of metal filtering core in filter is no more than 40 microns, and the filter that filtering accuracy is no more than 10 microns generally can also be used
Core.Second mechanical filter can carry out self purification by heating/Pre-cooling Mode regeneration.
The cryogenic gaseous hydrogen to gasify from liquid hydrogen storage tank in the present embodiment is compressed into pressure through the second low pressure compressor and is
Then the cryogenic gaseous hydrogen of 0.29 ± 0.029MPa is compressed into the low temperature that pressure is 2.5 ± 0.25MPa through the second high pressure compressor
Enter in liquefaction of hydrogen ice chest after Gaseous Hydrogen.Second low pressure compressor can use low pressure spiral Charge Compression machine or low
Piston compound compressor is pressed dry, the second high pressure compressor can use high pressure stem piston compound compressor.
In actual use, sequential sampling analysis, analysis need to be usually carried out to the Gaseous Hydrogen after compression, first class purification
The component ratio of impurities in Gaseous Hydrogen after first class purification process.
Sequential sampling analysis is carried out to the hydrogen after compression, first class purification, guarantees that the Gaseous Hydrogen before liquefying after purifying will expire
Hydrogen impurities component requirements in sufficient table one.Certainly, this is also a kind of hydrogen detected after purification device first class purification process
A kind of means whether met the requirements.
Gaseous Hydrogen component requirements before liquefying after one, first class purification of table
It is required for described in table one, without the need for the gas analysis arrangement of checked for impurities micro-concentrations, numerical value is reference value,
It may be implemented in -80 К by cryogenic absorption.According to standard in the industry, the volume content of nitrogen must not exceed 200ppbV in liquid hydrogen,
But in order to allow the continual work of later liquefaction, if Gaseous Hydrogen compressed, purified after in concentration nitrogen volume content not
More than 600ppbV, according to the reference attachment Б of GOST R 56248-2014, the nitrogen of this quantity is more than in temperature
20.64K or balance pressure be more than 0.115 megapascal (absolute) liquid hydrogen in can dissolve, this be liquid hydrogen store minimum
Degree.
The selection gist that oxygen content requirement is described in detail in table one, the numerical value marked here are according to standard in the industry
Critical value and meet the product temperature of 22.15K or the balance pressure of 0.17 megapascal；It is impermissible for beyond this range, and reduces
Oxygen concentration simultaneously exercises supervision to it until volume content reaches 0.5 ppbV, in this way since can there is no accumulation
Liquefaction of hydrogen device is run under conditions of solid oxygen, each gas and fluid passage, pipeline are less prone to stifled in liquefaction of hydrogen device
Plug phenomenon then easily sets off an explosion if causing blockages, thus above-mentioned setting effectively reduces the peace of liquefaction of hydrogen device
Full hidden danger.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any other form, and
Any modification made by according to the technical essence of the invention or equivalent variations, still fall within the scope of protection of present invention.
The invention has the advantages that the good purification of the purification device in the liquefaction of hydrogen device, in liquefaction process not
In the presence of each gas and fluid passage, pipe phenomenon in solidification impurity blocking liquefaction of hydrogen device, have a safety feature.
Claims (10)
1. the purification device in liquefaction of hydrogen device, it is characterised in that: include: the first purification device, to be set to liquefaction of hydrogen cold
The second purification device and third purification device in case, raw hydrogen by the first connecting pipe successively with the first compressor set,
First purification device, liquefaction of hydrogen ice chest, liquid hydrogen liquefaction ice chest, liquid hydrogen storage tank are connected；The liquefaction of hydrogen ice chest includes:
Heat exchanger and reactor are provided with the first hydrogen paths and the first cryogenic gaseous hydrogen channel, hydrogen paths in a heat exchanger
It is mutually indepedent with the first cryogenic gaseous hydrogen channel；It is provided with the second hydrogen paths, just secondary conversion channel, second low in the reactor
Wet state hydrogen channel and liquid hydrogen channel, the second hydrogen paths, just secondary conversion channel, the second cryogenic gaseous hydrogen channel and liquid hydrogen channel
Independently of each other；Raw hydrogen by the first connecting pipe successively in the first purification device, heat exchanger the first hydrogen paths,
The liquid hydrogen in just secondary conversion channel, reactor in the second hydrogen paths, the second purification device, reactor in reactor is logical
Road, liquid hydrogen liquefaction ice chest are connected with liquid hydrogen storage tank；It is provided with boil-off gas outlet on liquid hydrogen storage tank, gasifies in liquid hydrogen storage tank
Cryogenic gaseous hydrogen from boil-off gas outlet output after, by the second connecting pipe successively with the second compressor set, heat exchanger
In the first cryogenic gaseous hydrogen channel, the second cryogenic gaseous hydrogen channel in reactor, third purification device be connected, handed over for heat
Parallel operation and reactor provide cooling capacity.
2. the purification device in liquefaction of hydrogen device described in accordance with the claim 1, it is characterised in that: the first purification dress
Set includes: the first compressor set, absolute oil absorber, catalytic refining device, drying unit and the absorption that can remove high-boiling-point impurity
Device；Raw hydrogen is successively filled with the first compressor set, absolute oil absorber, catalytic refining device, drying by the first connecting pipe
Set, absorber that high-boiling-point impurity can be removed, the first hydrogen paths in heat exchanger, the second hydrogen paths in reactor,
Just secondary conversion channel in second purification device, reactor, the liquid hydrogen channel in reactor, liquid hydrogen liquefaction ice chest and liquid hydrogen storage tank
It is connected.
3. the purification device in liquefaction of hydrogen device according to claim 2, it is characterised in that: the absolute oil absorber
Adsorbent be active carbon；For the catalyst that catalytic refining uses for metallic catalyst, metallic catalyst is platinum, nickel, one in palladium
Kind；The carrier surface that catalytic refining is carried out to Gaseous Hydrogen is extended surface, and metallic catalyst is uniformly applied to the extension of the carrier
On surface；The adsorbent of the absorber of high-boiling-point impurity can be removed as the energy regenerated pore zeolite of heating power, passing through can heating power regeneration
Pore zeolite to Gaseous Hydrogen carry out drying and processing.
4. the purification device in liquefaction of hydrogen device according to claim 1 or 2, it is characterised in that: described second is net
Makeup is set to the first cryogenic unit conversion absorber, and the first cryogenic unit conversion absorber is by the first absorber and second
Absorber forms, and the adsorbent in the first absorber and the second absorber can heating power regeneration；The double cell translation of first low temperature
Absorber in normal work, if Gaseous Hydrogen after first class purification, precooling treatment carries out adsorption treatment through the first absorber, the
The regeneration of two absorber heating power；If the Gaseous Hydrogen after first class purification, precooling treatment carries out adsorption treatment through the second absorber, first
The regeneration of absorber heating power.
5. the purification device in liquefaction of hydrogen device according to claim 4, it is characterised in that: be located at the first low temperature two
First filter is provided in first connecting pipe of weight cell translation absorber inlet port.
6. the purification device in liquefaction of hydrogen device according to claim 5, it is characterised in that: the first filter
For mechanical filter, the filtering accuracy of the metal filtering core in mechanical filter is no more than 40 microns, and mechanical filter can lead to
It crosses heating or Pre-cooling Mode regeneration carries out self purification.
7. the purification device in liquefaction of hydrogen device according to claim 1 or 2, it is characterised in that: the third is net
Makeup is set to third absorber.
8. the purification device in liquefaction of hydrogen device according to claim 7, it is characterised in that: the third purifies dress
It is set to the second cryogenic unit conversion absorber, the second cryogenic unit converts absorber by third absorber and the 4th absorber group
At the adsorbent in third absorber and the 4th absorber can heating power regeneration；The double cell translation absorber of second low temperature exists
When normal work, if carry out adsorption treatment through third absorber from the cryogenic gaseous hydrogen that reactor exports, the 4th absorber heat
Power regeneration；If the cryogenic gaseous hydrogen exported from reactor carries out adsorption treatment through the 4th absorber, third absorber heating power is again
It is raw.
9. the purification device in liquefaction of hydrogen device according to claim 8, it is characterised in that: be located at the second low temperature two
The second filter is set in second connecting pipe of weight cell translation absorber inlet port.
10. the purification device in liquefaction of hydrogen device according to claim 9, it is characterised in that: second filtering
Device is mechanical filter, and the filtering accuracy of the metal filtering core in mechanical filter is no more than 40 microns, and mechanical filter can be with
Self purification is carried out by heating or Pre-cooling Mode regeneration.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820801721.6U CN208332856U (en) | 2018-05-28 | 2018-05-28 | Purification device in liquefaction of hydrogen device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820801721.6U CN208332856U (en) | 2018-05-28 | 2018-05-28 | Purification device in liquefaction of hydrogen device |
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|---|---|
| CN208332856U true CN208332856U (en) | 2019-01-04 |
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|---|---|---|---|
| CN201820801721.6U Withdrawn - After Issue CN208332856U (en) | 2018-05-28 | 2018-05-28 | Purification device in liquefaction of hydrogen device |
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| CN (1) | CN208332856U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444213A (en) * | 2018-05-28 | 2018-08-24 | 张家港富瑞氢能装备有限公司 | Purifier in liquefaction of hydrogen device |
| CN113513703A (en) * | 2021-07-07 | 2021-10-19 | 中车长江运输设备集团有限公司 | Detachable low-temperature filtering device of liquid hydrogen storage tank, special assembling tool and using method thereof |
-
2018
- 2018-05-28 CN CN201820801721.6U patent/CN208332856U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444213A (en) * | 2018-05-28 | 2018-08-24 | 张家港富瑞氢能装备有限公司 | Purifier in liquefaction of hydrogen device |
| CN108444213B (en) * | 2018-05-28 | 2023-09-26 | 江苏国富氢能技术装备股份有限公司 | Purifying device in hydrogen liquefying device |
| CN113513703A (en) * | 2021-07-07 | 2021-10-19 | 中车长江运输设备集团有限公司 | Detachable low-temperature filtering device of liquid hydrogen storage tank, special assembling tool and using method thereof |
| CN113513703B (en) * | 2021-07-07 | 2023-08-04 | 中车长江运输设备集团有限公司 | Detachable low-temperature filtering device for liquid hydrogen storage tank, special assembly tool for detachable low-temperature filtering device and use method of detachable low-temperature filtering device |
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Address after: 215600 No. 236, Guotai North Road, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: Jiangsu Guofu hydrogen energy technology equipment Co.,Ltd. Address before: 215600 Fuxin (morning) road 19, Yang Shi Town, Zhangjiagang City, Suzhou, Jiangsu. Patentee before: Jiangsu Guofu Hydrogen Energy Technology Equipment Co.,Ltd. Address after: 215600 Fuxin (morning) road 19, Yang Shi Town, Zhangjiagang City, Suzhou, Jiangsu. Patentee after: Jiangsu Guofu Hydrogen Energy Technology Equipment Co.,Ltd. Address before: 215600 Fuxin (new morning) road 19, Zhangjiagang, Suzhou, Zhangjiagang, Jiangsu province Zhangjiagang Furui hydrogen energy equipment Co., Ltd. Patentee before: ZHANGJIAGANG FURUI HYDROGEN ENERGY EQUIPMENT Co.,Ltd. |
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Granted publication date: 20190104 Effective date of abandoning: 20230926 |
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Granted publication date: 20190104 Effective date of abandoning: 20230926 |